JP2004197954A - Vacuum heat insulating material - Google Patents

Vacuum heat insulating material Download PDF

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JP2004197954A
JP2004197954A JP2004109803A JP2004109803A JP2004197954A JP 2004197954 A JP2004197954 A JP 2004197954A JP 2004109803 A JP2004109803 A JP 2004109803A JP 2004109803 A JP2004109803 A JP 2004109803A JP 2004197954 A JP2004197954 A JP 2004197954A
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heat insulating
core
insulating material
vacuum heat
vacuum
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Tomonao Amayoshi
智尚 天良
Takeo Fujimoto
剛生 藤元
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Panasonic Holdings Corp
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Matsushita Refrigeration Co
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a widely applicable vacuum heat insulating material less limiting to shapes of applied objects. <P>SOLUTION: The vacuum heat insulating material 40 comprises gas-barrier skins 12 having heat welded layers and a plate core 41. The core 41 is depressurized and sealed between the skins 12 where the heat welded portions are opposed to each other, and a peripheral edge portion is formed around the core 41, which is constituted only by the skins 12 adhered thereto, not including the core 41 therebetween. There are less wasteful portions to which the skins are not welded to the peripheral edge portion of the vacuum heat insulating material 40. No portion not including the core 41 between the skins 12 exists between the core 41 and a heat welded portion 42. Thus, the vacuum heat insulating material with a larger effective heat insulation area is easily manufactured in any shape by mating the peripheral edge portion to the shape of the core. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

本発明は、パソコン等の情報機器や電子機器、保温保冷機器、防寒具等の衣料用品、および住宅部材等に使用できる、複雑な形状が可能な真空断熱材に関するものである。   The present invention relates to a vacuum heat insulating material that can be used for information equipment such as a personal computer, an electronic device, a warming / cooling device, clothing items such as a cold protection device, a housing member, and the like, and can have a complicated shape.

多孔体の芯材を、ガスバリア層と熱溶着層とを有するプラスチックラミネートフィルム製の外被材で覆って減圧封止してなる真空断熱材は、その封止技術として、封止時の信頼性、および生産性の観点から、２枚のラミネートフィルムの接合面を加熱加圧することで封止する熱溶着法が一般的に使用されている。このようにして形成する真空断熱材は、予め、プラスチックラミネートフィルム製の外被材を芯材より大きめの袋状に成形し、この袋状の外被材に芯材を挿入し、減圧後、開口部を熱溶着により封止するものである。   Vacuum insulation, which is made by covering a porous core material with a plastic laminate film covering material having a gas barrier layer and a heat-sealing layer and sealing it under reduced pressure, has a sealing technology that uses From the viewpoints of productivity and productivity, a heat welding method of sealing the joint surface of the two laminated films by heating and pressing is generally used. The vacuum heat insulating material formed in this way is formed in advance by molding a plastic laminate film jacket material into a bag shape larger than the core material, inserting the core material into the bag-shaped jacket material, and after decompression, The opening is sealed by heat welding.

そのため、このような構成の真空断熱材の外周部の四辺端部には、外被材の熱溶着部と、芯材を間に含まず密着しただけの外被材とから構成される周縁部が形成される。真空断熱材の適用にあたっては、この周縁部をできるだけ小さくするため、従来から種々の取り組みがなされている。   Therefore, at the four sides of the outer peripheral portion of the vacuum heat insulating material having such a configuration, a peripheral edge portion composed of a heat-welded portion of the outer jacket material and an outer jacket material that does not include a core material and is in close contact with the outer peripheral portion is provided. Is formed. In applying the vacuum heat insulating material, various approaches have conventionally been taken to make the peripheral portion as small as possible.

図４０は従来の真空断熱材の製造過程を示す斜視図、図４１は従来の真空断熱材を示す斜視図である。図４０、図４１において、真空断熱材３００は、フィルム状の薄体３０１の上にコア材３０２を置き、コア材３０１を包むように薄体３０１を折り返し、この状態で薄体３０１内部を真空引きされ、折り返すことで相互に接合された薄体３０１同志を、周囲三方にて熱溶着により接着して作製される。このとき、薄体３０１の折り返される部位をコア材３０２の一端面に密着させることで、真空断熱材３００の端面３０３には、熱融着による突起３０４が形成されないことが開示されている（例えば、特許文献１参照）。   FIG. 40 is a perspective view showing a manufacturing process of a conventional vacuum heat insulating material, and FIG. 41 is a perspective view showing a conventional vacuum heat insulating material. 40 and 41, the vacuum heat insulating material 300 is such that a core material 302 is placed on a film-like thin body 301, and the thin body 301 is folded back so as to wrap the core material 301. In this state, the inside of the thin body 301 is evacuated. Then, the thin bodies 301 joined to each other by being folded are bonded to each other by heat welding on three sides. At this time, it is disclosed that the projection 304 is not formed on the end face 303 of the vacuum heat insulating material 300 by heat fusion by bringing the folded portion of the thin body 301 into close contact with one end face of the core material 302 (for example, And Patent Document 1).

次に、従来の折り曲げ可能な真空断熱材について説明する。図４２は従来の真空断熱材の平面図で、図４３は同従来の真空断熱材を断熱箱体の外箱に設けた状態の断面図である。図４２において、３つの長方形の芯材３１１をガスバリア性のフィルム３１２で覆いフィルム３１２の内部を減圧して成り、３つの芯材３１１は一方向に互いに所定間隔離れて略同一面上に配置されており、３つの芯材３１１のそれぞれが独立した空間内に位置するように隣接する芯材３１１の間に位置するフィルムが熱溶着されており、隣接する芯材３１１の間に位置する熱溶着部３１３を折曲線３１４ａとして折り曲げ可能な真空断熱材３１４があった（例えば、特許文献２参照）。   Next, a conventional foldable vacuum heat insulating material will be described. FIG. 42 is a plan view of a conventional vacuum heat insulating material, and FIG. 43 is a cross-sectional view showing a state where the conventional vacuum heat insulating material is provided in an outer box of a heat insulating box. In FIG. 42, three rectangular core members 311 are covered with a gas barrier film 312 and the inside of the film 312 is decompressed, and the three core members 311 are arranged on the same plane at predetermined intervals in one direction. The film located between the adjacent cores 311 is heat-welded so that each of the three cores 311 is located in an independent space, and the heat-welding is performed between the adjacent cores 311. There is a vacuum heat insulating material 314 that can bend the part 313 as a folding curve 314a (for example, see Patent Document 2).

この真空断熱材３１４は、図４３に示すように、冷蔵庫などの断熱箱体の外箱３１５の内側に設けられるものである。外箱３１５は金属板３１６をコ字状に折り曲げたものであるが、真空断熱材３１４は、コ字状に折り曲げる前の状態の金属板３１６に、金属板３１６の折曲線に真空断熱材３１４の折曲線３１４ａが対応するように接着固定されており、外箱３１５の内面となる面に真空断熱材３１４が接着固定された金属板３１６をコ字状に折り曲げることにより、図４３に示す、内面に真空断熱材３１４を備えた外箱３１５が造られる。
特開平７−２６９７８１号公報 特開平７−９８０９０号公報 As shown in FIG. 43, the vacuum heat insulating material 314 is provided inside the outer box 315 of a heat insulating box such as a refrigerator. The outer box 315 is obtained by bending a metal plate 316 into a U-shape, and the vacuum heat insulating material 314 is formed on the metal plate 316 before being bent into the U shape, and the vacuum heat insulating material 314 is formed on the bending curve of the metal plate 316. 43 is formed by bending a metal plate 316 in which a vacuum heat insulating material 314 is bonded and fixed to a surface serving as an inner surface of the outer box 315 in a U shape, as shown in FIG. An outer box 315 having a vacuum insulation 314 on the inner surface is manufactured.
JP-A-7-269781 JP-A-7-98090

しかしながら、特許文献１に示される従来の構成では、真空断熱材の一端面には熱溶着部が形成されないものの、残りの周囲三方には熱溶着部が存在する。また同時に、芯材を入れるため大きめに作製した袋状の外被材は、内部を減圧したときには、芯材と熱溶着部の間に芯材を間に含まない外被材のみから構成された部分が残る。そのため、芯材の周囲に形成される周縁部の幅が大きくなり、適用にあたってはこの周縁部の折り曲げ処理が必要となる等の課題を有していた。   However, in the conventional configuration shown in Patent Literature 1, although a heat-welded portion is not formed on one end surface of the vacuum heat insulating material, heat-welded portions exist on the remaining three sides. At the same time, the bag-shaped jacket material, which was made larger to accommodate the core material, was composed of only the jacket material that did not include the core material between the core material and the heat-welded portion when the inside was depressurized. Part remains. For this reason, the width of the peripheral portion formed around the core material becomes large, and there has been a problem that the peripheral portion needs to be bent for application.

また、芯材と熱溶着部の間には、芯材を間に含まない外被材のみから構成された部分が形成されるため、真空断熱材の形状が制限され、任意形状の真空断熱材を作製することが困難であった。   In addition, since a portion composed only of the jacket material that does not include the core material is formed between the core material and the heat-welded portion, the shape of the vacuum heat insulating material is limited, and the vacuum heat insulating material having an arbitrary shape is formed. Was difficult to produce.

また、特許文献２に示される従来の真空断熱材は、複数の長方形の芯材が一方向に互いに所定間隔離れて略同一面上に配置されており、隣接する芯材の間に位置する熱溶着部に形成される各折曲線は、互いに略平行であるため、従来の真空断熱材を適用（接着または貼付）することのできる対象物は、平面と、横断面の形状および大きさが長手方向で変わらない物体の側面（例えば、横断面が三つ以上の角をもつ多角形の多角柱形状の物体の側面、横断面が三つ以上の角をもつ多角形の筒状の物体の内側の側面または外側の側面）に限られており、例えば防寒具の中の羽毛や綿の代わりに、上記従来の真空断熱材を使うことは困難であった。   Further, in the conventional vacuum heat insulating material disclosed in Patent Document 2, a plurality of rectangular core materials are arranged on a substantially same surface at a predetermined interval from each other in one direction. Since the fold curves formed in the welded portion are substantially parallel to each other, the object to which the conventional vacuum heat insulating material can be applied (adhered or affixed) has a flat surface, a cross-sectional shape and a longitudinal shape. The side of an object that does not change direction (eg, the side of a polygonal prism-shaped object with a cross section of three or more corners, the inside of a polygonal cylindrical object with a cross section of three or more corners) Side or outer side), and it has been difficult to use the above-mentioned conventional vacuum heat insulating material instead of, for example, feathers and cotton in the cold protection equipment.

本発明は、上記従来の課題を解決するもので、芯材の周囲に形成される周縁部を熱溶着部のみとすることで、有効断熱面積が大きくとれるとともに複雑な形状にも対応でき、適用する対象物、アプリケーションに対する適合性が優れた、きわめて用途が広い真空断熱材を低コストで提供することを目的とする。   The present invention solves the above-mentioned conventional problems. By using only a heat-welded portion as a peripheral portion formed around a core material, an effective heat-insulating area can be increased and a complicated shape can be coped with. It is an object of the present invention to provide an extremely versatile vacuum insulation material excellent in adaptability to a target object and an application at a low cost.

上記従来の課題を解決するために、本発明の真空断熱材は、熱溶着層を有するガスバリア性の外被材と、板状の芯材とを有し、前記熱溶着層同士が対向する前記外被材の間に前記芯材が減圧密封され、前記芯材の周囲に前記芯材を間に含まず密着した前記外被材のみから構成される周縁部が形成された真空断熱材であって、前記真空断熱材の厚みが０．５ｍｍ以上５ｍｍ以下で、前記周縁部の全ての前記外被材が熱溶着されているものである。   In order to solve the above-mentioned conventional problems, the vacuum heat insulating material of the present invention has a gas-barrier covering material having a heat-welding layer and a plate-shaped core material, and the heat-welding layers face each other. A vacuum heat insulating material in which the core material is hermetically sealed under reduced pressure between outer jacket materials, and a peripheral portion composed of only the outer jacket material is formed around the core material without including the core material therebetween. The thickness of the vacuum heat insulating material is not less than 0.5 mm and not more than 5 mm, and all the outer jacket materials of the peripheral edge are heat-welded.

本発明は、真空断熱材の厚みを０．５ｍｍ以上５ｍｍ以下として、芯材の周囲に形成される、芯材を間に含まず密着した外被材のみから構成される周縁部の全ての外被材を熱溶着したので、真空断熱材の周縁部に外被材が溶着されていない無駄な部分の発生を抑制することができ、芯材と熱溶着部との間において、外被材間に芯材を含まない部分が存在していないことから、有効断熱面積を拡大することができると共に、周縁部を芯材形状に合わせることによって容易に任意形状の真空断熱材が作製できる。   The present invention provides a vacuum heat insulating material having a thickness of 0.5 mm or more and 5 mm or less, wherein the outer periphery of a peripheral portion formed around a core material and formed only of an insulated covering material without a core material therebetween Since the material to be welded is thermally welded, it is possible to suppress the generation of useless portions in which the outer material is not welded to the peripheral portion of the vacuum heat insulating material. Since there is no portion that does not include a core material, the effective heat insulating area can be increased, and a vacuum heat insulating material having an arbitrary shape can be easily produced by adjusting the peripheral portion to the shape of the core material.

また、別の本発明の真空断熱材は、熱溶着層を有するガスバリア性の外被材と、板状の芯材とを有し、前記熱溶着層同士が対向する前記外被材の間に前記芯材が減圧密封され、前記芯材の周囲に前記外被材の熱溶着部が形成された真空断熱材であって、前記真空断熱材の厚みが０．５ｍｍ以上５ｍｍ以下で、前記芯材の周囲の前記熱溶着部と前記芯材との間に、前記外被材が密着しただけで溶着されていない部分がないものである。   Further, another vacuum heat insulating material of the present invention has a gas-barrier covering material having a heat-welding layer, and a plate-shaped core material, between the covering materials in which the heat-welding layers face each other. A vacuum heat insulating material in which the core material is hermetically sealed under pressure and a heat-welded portion of the jacket material is formed around the core material, wherein the thickness of the vacuum heat insulating material is 0.5 mm or more and 5 mm or less. Between the heat-welded portion around the material and the core material, there is no portion where the outer cover material is only welded but not welded.

本発明は、真空断熱材の厚みを０．５ｍｍ以上５ｍｍ以下として、芯材の周囲に形成される外被材の熱溶着部と芯材との間に、外被材が密着しただけで溶着されていない部分が発生しないように、芯材の周囲の外被材を熱溶着したので、真空断熱材の周縁部に外被材が溶着されていない無駄な部分の発生を抑制することができ、芯材と熱溶着部との間において、外被材間に芯材を含まない部分が存在していないことから、有効断熱面積を拡大することができると共に、周縁部を芯材形状に合わせることによって容易に任意形状の真空断熱材が作製できる。   According to the present invention, the thickness of the vacuum heat insulating material is set to 0.5 mm or more and 5 mm or less, and welding is performed only when the jacket material is in close contact between the core material and the heat-welded portion of the jacket material formed around the core material. Since the outer jacket material around the core is heat-welded so that no unoccupied portion is generated, the useless portion where the outer jacket material is not welded to the periphery of the vacuum heat insulating material can be suppressed. Since there is no portion that does not include the core material between the jacket material and the core material and the heat-welded portion, the effective heat-insulating area can be increased and the peripheral edge portion is adjusted to the shape of the core material. Thereby, a vacuum heat insulating material having an arbitrary shape can be easily produced.

本発明の真空断熱材は、真空断熱材の周縁部に外被材が溶着されていない無駄な部分の発生を抑制することができ、芯材と熱溶着部との間において、外被材間に芯材を含まない部分が存在していないことから、有効断熱面積を拡大することができると共に、周縁部を芯材形状に合わせることによって容易に任意形状の真空断熱材が作製できる。   The vacuum heat insulating material of the present invention can suppress the occurrence of a useless portion in which the jacket material is not welded to the peripheral portion of the vacuum heat insulating material, and the space between the core material and the heat welded portion can be reduced. Since there is no portion that does not include a core material, the effective heat insulating area can be increased, and a vacuum heat insulating material having an arbitrary shape can be easily produced by adjusting the peripheral portion to the shape of the core material.

請求項１に記載の発明は、熱溶着層を有するガスバリア性の外被材と、板状の芯材とを有し、前記熱溶着層同士が対向する前記外被材の間に前記芯材が減圧密封され、前記芯材の周囲に前記芯材を間に含まず密着した前記外被材のみから構成される周縁部が形成された真空断熱材であって、前記真空断熱材の厚みが０．５ｍｍ以上５ｍｍ以下で、前記周縁部の全ての前記外被材が熱溶着されている真空断熱材である。   The invention according to claim 1 has a gas-barrier covering material having a heat-welding layer and a plate-shaped core material, and the core material is provided between the covering materials where the heat-welding layers face each other. Is vacuum-sealed, the periphery of the core material is a vacuum heat-insulating material in which a peripheral portion composed of only the outer cover material is adhered without including the core material therebetween, and the thickness of the vacuum heat-insulating material is It is a vacuum heat insulating material having a length of 0.5 mm or more and 5 mm or less, and in which all of the outer cover materials of the peripheral portion are heat-welded.

本発明は、真空断熱材の厚みを０．５ｍｍ以上５ｍｍ以下として、芯材の周囲に形成される、芯材を間に含まず密着した外被材のみから構成される周縁部の全ての外被材を熱溶着したので、真空断熱材の周縁部に外被材が溶着されていない無駄な部分の発生を抑制することができ、芯材と熱溶着部との間において、外被材間に芯材を含まない部分が存在していないことから、有効断熱面積を拡大することができると共に、周縁部を芯材形状に合わせることによって容易に任意形状の真空断熱材が作製できる。   The present invention provides a vacuum heat insulating material having a thickness of 0.5 mm or more and 5 mm or less, wherein the outer periphery of a peripheral portion formed around a core material and formed only of an insulated covering material without a core material therebetween Since the material to be welded is thermally welded, it is possible to suppress the generation of useless portions in which the outer material is not welded to the peripheral portion of the vacuum heat insulating material. Since there is no portion that does not include a core material, the effective heat insulating area can be increased, and a vacuum heat insulating material having an arbitrary shape can be easily produced by adjusting the peripheral portion to the shape of the core material.

なお、真空断熱材の厚みを０．５ｍｍ以上５ｍｍ以下としているが、芯材の存在しない外被材部分は、芯材が薄いほどぎりぎりまで熱溶着が確実にでき、芯材形状に沿うように熱溶着部を有する真空断熱材とすることができる。   Although the thickness of the vacuum heat insulating material is set to 0.5 mm or more and 5 mm or less, the outer material portion where the core material does not exist, the thinner the core material, the more reliably the heat welding can be performed, and the shape of the core material follows the shape of the core material. It can be a vacuum heat insulating material having a heat welded portion.

なお、真空断熱材の厚みが５ｍｍを超えると周縁部にしわができるなどの不具合が発生しやすく、厚みが１０ｍｍを超えるような場合は、芯材の存在しない外被材部分は、芯材と熱溶着部の間に芯材を含まない外被材部分が形成されたり、しわの発生およびそれに伴うピンホールの発生が起こりやすくなり、芯材形状に沿うように熱溶着部を形成することがより困難になる。一方、厚みが０．５ｍｍを下回ると、内部の芯材厚さが充分に確保できず、優れた断熱性能が確保することが困難になる。   If the thickness of the vacuum heat insulating material exceeds 5 mm, problems such as wrinkling of the peripheral edge are likely to occur, and if the thickness exceeds 10 mm, the outer material portion where the core material does not exist is the core material and the heat. Outer material portions that do not contain a core material are formed between the welded portions, wrinkles and accompanying pinholes are more likely to occur, and it is more preferable to form the heat welded portions along the core material shape. It becomes difficult. On the other hand, when the thickness is less than 0.5 mm, the inner core material thickness cannot be sufficiently secured, and it becomes difficult to secure excellent heat insulating performance.

請求項２に記載の発明は、熱溶着層を有するガスバリア性の外被材と、板状の芯材とを有し、前記熱溶着層同士が対向する前記外被材の間に前記芯材が減圧密封され、前記芯材の周囲に前記外被材の熱溶着部が形成された真空断熱材であって、前記真空断熱材の厚みが０．５ｍｍ以上５ｍｍ以下で、前記芯材の周囲の前記熱溶着部と前記芯材との間に、前記外被材が密着しただけで溶着されていない部分がない真空断熱材である。   The invention according to claim 2 includes a gas-barrier covering material having a heat-welding layer and a plate-shaped core material, wherein the core material is provided between the covering materials in which the heat-welding layers face each other. Is a vacuum heat insulating material in which a heat-sealed portion of the jacket material is formed around the core material, wherein the thickness of the vacuum heat insulating material is 0.5 mm or more and 5 mm or less, and the periphery of the core material is A vacuum heat insulating material having no unwelded portion between the heat-welded portion and the core material only because the jacket material is in close contact with the core material.

本発明は、真空断熱材の厚みを０．５ｍｍ以上５ｍｍ以下として、芯材の周囲に形成される外被材の熱溶着部と芯材との間に、外被材が密着しただけで溶着されていない部分が発生しないように、芯材の周囲の外被材を熱溶着したので、真空断熱材の周縁部に外被材が溶着されていない無駄な部分の発生を抑制することができ、芯材と熱溶着部との間において、外被材間に芯材を含まない部分が存在していないことから、有効断熱面積を拡大することができると共に、周縁部を芯材形状に合わせることによって容易に任意形状の真空断熱材が作製できる。   According to the present invention, the thickness of the vacuum heat insulating material is set to 0.5 mm or more and 5 mm or less, and welding is performed only when the jacket material is in close contact between the core material and the heat-welded portion of the jacket material formed around the core material. Since the outer jacket material around the core is heat-welded so that no unoccupied portion is generated, the useless portion where the outer jacket material is not welded to the periphery of the vacuum heat insulating material can be suppressed. Since there is no portion that does not include the core material between the jacket material and the core material and the heat-welded portion, the effective heat-insulating area can be increased and the peripheral edge portion is adjusted to the shape of the core material. Thereby, a vacuum heat insulating material having an arbitrary shape can be easily produced.

なお、真空断熱材の厚みを０．５ｍｍ以上５ｍｍ以下としているが、芯材の存在しない外被材部分は、芯材が薄いほどぎりぎりまで熱溶着が確実にでき、芯材形状に沿うように熱溶着部を有する真空断熱材とすることができる。   Although the thickness of the vacuum heat insulating material is set to 0.5 mm or more and 5 mm or less, the outer material portion where the core material does not exist, the thinner the core material, the more reliably the heat welding can be performed, and the shape of the core material follows the shape of the core material. It can be a vacuum heat insulating material having a heat welded portion.

なお、真空断熱材の厚みが５ｍｍを超えると周縁部にしわができるなどの不具合が発生しやすく、厚みが１０ｍｍを超えるような場合は、芯材の存在しない外被材部分は、芯材と熱溶着部の間に芯材を含まない外被材部分が形成されたり、しわの発生およびそれに伴うピンホールの発生が起こりやすくなり、芯材形状に沿うように熱溶着部を形成することがより困難になる。一方、厚みが０．５ｍｍを下回ると、内部の芯材厚さが充分に確保できず、優れた断熱性能が確保することが困難になる。   If the thickness of the vacuum heat insulating material exceeds 5 mm, problems such as wrinkling of the peripheral edge are likely to occur, and if the thickness exceeds 10 mm, the outer material portion where the core material does not exist is the core material and the heat. Outer material portions that do not contain a core material are formed between the welded portions, wrinkles and accompanying pinholes are more likely to occur, and it is more preferable to form the heat welded portions along the core material shape. It becomes difficult. On the other hand, when the thickness is less than 0.5 mm, the inner core material thickness cannot be sufficiently secured, and it becomes difficult to secure excellent heat insulating performance.

請求項３に記載の発明は、請求項１または請求項２記載の発明において、芯材が複数個あり、隣接する前記芯材の間に位置する部分の外被材すべてが熱溶着されて前記複数の芯材のそれぞれが独立した空間内に位置している真空断熱材である。   According to a third aspect of the present invention, in the first or second aspect of the present invention, there are a plurality of core members, and all of the jacket members located between the adjacent core members are thermally welded. It is a vacuum heat insulating material in which each of the plurality of core materials is located in an independent space.

本発明では、隣接する前記芯材の間に位置する部分の外被材すべてを熱溶着することにより複数の芯材のそれぞれが独立した空間内に位置しているので、熱溶着部の幅を広く確保でき、そのため熱溶着部を通して各芯材が入った空間の真空度が低下する可能性をかなり低くできる。   In the present invention, since the plurality of core members are each located in an independent space by heat-welding all of the covering members located between the adjacent core members, the width of the heat-welded portion is reduced. A large space can be ensured, so that the possibility that the degree of vacuum in the space in which each core material enters through the heat-welded portion can be significantly reduced.

請求項４に記載の発明は、請求項１から請求項３のうちいずれか一項記載の発明において、外被材の間に芯材がある部分の熱溶着層が溶融して、前記芯材の表面部分と結着している真空断熱材である。   According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the heat-welding layer in a portion where the core material is located between the jacket materials is melted, and the core material is melted. Is a vacuum heat insulating material bound to the surface portion.

本発明では、外被材の間に芯材がある部分の熱溶着層が溶融して、芯材の表面部分と結着しているので、外被材と芯材とのサンドイッチ構造がより強固なものとなり、剛性の高い真空断熱材とすることができる。   In the present invention, since the heat-welding layer in the portion where the core is located between the jackets is melted and bonded to the surface of the core, the sandwich structure between the jacket and the core is more robust. And a highly rigid vacuum heat insulating material can be obtained.

請求項５に記載の発明は、請求項１から請求項４のうちいずれか一項記載の発明において、外被材が、芯材に沿って所定幅の熱溶着部が残るように切断されている真空断熱材であり、略芯材形状の真空断熱材を形成することができる。   According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the outer cover material is cut so that a heat-welded portion having a predetermined width remains along the core material. Vacuum heat insulating material, and a substantially core-shaped vacuum heat insulating material can be formed.

この真空断熱材は、熱溶着部以外に芯材を含まない外被材の非溶着部が殆ど無く、熱溶着部と非熱溶着部とからなる周縁部が小さいことから、有効断熱面積が大きい。また、真空断熱材は略芯材形状となり、任意形状の真空断熱材を形成することができる。   This vacuum heat insulating material has a large effective heat insulating area because there is almost no non-welded portion of the jacket material that does not include the core material other than the heat-welded portion, and the peripheral portion composed of the heat-welded portion and the non-heat-welded portion is small. . Further, the vacuum heat insulating material has a substantially core material shape, and a vacuum heat insulating material having an arbitrary shape can be formed.

更に、芯材の厚み方向に貫通孔を有し、芯材の貫通孔の形状に沿うように熱溶着している真空断熱材の熱溶着部においても、熱溶着部分が芯材との間に所定幅の熱溶着部が残るように切断することができる。   Furthermore, in the heat-welded portion of the vacuum heat insulating material which has a through hole in the thickness direction of the core material and is heat-welded along the shape of the through-hole of the core material, the heat-welded portion is located between the core material and the heat-welded portion. Cutting can be performed so that a heat-welded portion having a predetermined width remains.

これにより、貫通孔部分に孔を有する真空断熱材を形成することができ、一方の面から他方の面に、空気や水を排出する必要がある用途や、適用箇所の都合上、物（例えば、管などの部品）を通す必要がある用途や、真空断熱材と発泡断熱材と組み合わせた複合断熱材において、製造の都合上、真空断熱材の一方の面から他方の面に、発泡断熱材を流す必要がある所等にも適用できると同時に、芯材の貫通孔を孔の大きさに対して熱溶着部分の幅だけを考慮してできるだけ小さくすることで、断熱性能の低下を抑制することができる。   Thereby, a vacuum heat insulating material having a hole in the through-hole portion can be formed, and from one surface to the other surface, there is a need to discharge air or water, or a material (for example, , Pipes and other parts), and in the case of composite insulation combined with vacuum insulation and foam insulation, from one side of the vacuum insulation to the other, foam insulation It can be applied to places where it is necessary to flow heat, and at the same time, the reduction in heat insulation performance is suppressed by making the through hole of the core material as small as possible in consideration of only the width of the heat welded portion with respect to the size of the hole be able to.

請求項６に記載の発明は、請求項５記載の発明における外被材の切断を、溶断により行った真空断熱材である。   According to a sixth aspect of the present invention, there is provided a vacuum heat insulating material obtained by cutting the outer cover material according to the fifth aspect of the present invention by fusing.

これにより、この真空断熱材は請求項５に記載の発明の作用、効果に加えて、熱溶着部を溶断により切断しているため、熱溶着部のラミネートフィルム溶断部端面が丸みを帯びてエッジ部を取り除くことができる。そのため、真空断熱材のラミネートフィルム端面にて、他の真空断熱材や適用するアプリケーションのハーネス等に対する傷つけ防止を図ることができる。よって、取り扱い性の優れた真空断熱材となる。   Thereby, in addition to the function and effect of the invention of claim 5, this vacuum heat insulating material cuts the heat-welded portion by fusing, so that the end face of the heat-sealed portion of the laminated film fusing portion has a rounded edge. The part can be removed. Therefore, it is possible to prevent damage to other vacuum heat insulating materials and harnesses of the application to be applied at the end surface of the laminated film of the vacuum heat insulating material. Therefore, it becomes a vacuum heat insulating material excellent in handleability.

また、熱溶着部を溶断すると外被材を構成するラミネートフィルム最外層の樹脂が溶融し、溶融樹脂が溶断断面を被覆することから、外被材端面から経時的に侵入する侵入ガスを低減するという効果が得られる。   Further, when the heat-welded portion is blown, the resin of the outermost layer of the laminate film constituting the jacket material is melted, and the molten resin covers the blown cross section, thereby reducing an invasion gas entering from the end face of the jacket material with time. The effect is obtained.

なお、所定の厚さに加圧圧縮された状態で、芯材の存在しない外被材部分すべてを溶着すれば、加圧を取り除いても大気圧縮による圧縮が発生しないため外被材の余分が出ることなく、外被材が溶着されない無駄な部分である非熱溶着部の発生を抑制して有効断熱面積を大きくすることができる。   In addition, if all the covering material portions where the core material does not exist are welded in a state where the covering material is compressed to a predetermined thickness, even if the pressure is removed, the compression due to the atmospheric compression does not occur, so that the extra covering material is unnecessary. It is possible to suppress the occurrence of a non-heat-welded portion, which is a useless portion in which the jacket material is not welded, without causing the sheath material to come out, thereby increasing the effective heat-insulating area.

また、外被材の間に芯材がある部分を含めて加熱加圧すれば、芯材の周囲まで確実に熱溶着でき、外被材の非熱溶着部の発生を抑制して有効断熱面積が大きい真空断熱材を提供することができる。   In addition, if heat and pressure are applied including the portion where the core material is located between the sheath materials, heat welding can be reliably performed around the core material, and the generation of non-heat-welded portions of the sheath material is suppressed, and the effective heat insulating area Can provide a large vacuum insulation material.

また、外被材の間に芯材がある部分の全てを加熱加圧すれば、真空包装後の大気開放時においても、大気圧による芯材の圧縮変形の影響を最小限とすることができ、外被材の非熱溶着部の発生を抑制することができる。   In addition, by heating and pressurizing all parts where the core material is located between the jacket materials, the effect of compressive deformation of the core material due to atmospheric pressure can be minimized even when opening to the atmosphere after vacuum packaging. In addition, it is possible to suppress the occurrence of a non-heat-welded portion of the jacket material.

なお、加熱加圧時の加圧力を１ｋｇ／ｃｍ2 以上とすれば、大気開放時の大気圧縮による芯材の圧縮変形が完全に抑制できるため、圧縮変形の大きい芯材を適用した場合にも、芯材端部は芯材形状に沿うように熱溶着部が形成される真空断熱材とすることができる。 If the pressing force at the time of heating and pressurizing is 1 kg / cm 2 or more, the compression deformation of the core material due to the atmospheric compression at the time of opening to the atmosphere can be completely suppressed. The end of the core material may be a vacuum heat insulating material in which a heat welding portion is formed along the shape of the core material.

また、芯材の形状は、三角形、四角形、多角形、略円形、略楕円形、Ｌ型、およびこれらの組み合わせからなる任意形状とすることができ、真空断熱材を配設する場所にリブやボスなどの突起等があっても形状で避けることができ、複雑な形状でも最小限の枚数で対応できる。   Further, the shape of the core material can be an arbitrary shape including a triangle, a square, a polygon, a substantially circular shape, a substantially elliptical shape, an L-shape, and a combination thereof. Even if there is a projection such as a boss, the shape can be avoided, and even a complicated shape can be handled with a minimum number of sheets.

また、真空断熱材を製造するときの熱溶着において、弾性体で構成された熱板を使用すれば、外被材の間の芯材の有無を熱板の変形によって吸収することにより、容易に対向する熱溶着層同士を芯材形状に沿うように熱溶着することができる。また、溶着において芯材の形状に関わりなく汎用的に対応でき、きわめて容易にかつ効率よく本発明の真空断熱材を製造することができる。   Also, in the case of heat welding when manufacturing a vacuum heat insulating material, if a hot plate made of an elastic material is used, the presence or absence of a core material between the covering materials is easily absorbed by deformation of the hot plate. The opposing heat-welded layers can be heat-welded along the core material shape. In addition, the welding can be performed versatile regardless of the shape of the core material, and the vacuum heat insulating material of the present invention can be manufactured very easily and efficiently.

次に、真空断熱材の構成材料について詳細に説明する。   Next, the constituent materials of the vacuum heat insulating material will be described in detail.

芯材に使用する材料は、気相比率９０％前後の多孔体をシート状または板状に加工したものであり、工業的に利用できるものとして、発泡体、粉体、および繊維体等がある。これらは、その使用用途や必要特性に応じて公知の材料を使用することができる。   The material used for the core material is obtained by processing a porous body having a gas phase ratio of about 90% into a sheet or a plate, and examples of industrially usable materials include foams, powders, and fibrous bodies. . For these, known materials can be used according to the intended use and required characteristics.

このうち、発泡体としては、ウレタンフォーム、スチレンフォーム、フェノールフォーム等の連続気泡体が利用できる。また、粉体としては、無機系、有機系、およびこれらの混合物を利用できるが、工業的には、乾式シリカ、湿式シリカ、パーライト等を主成分とするものが使用できる。   Among these, as the foam, open-celled bodies such as urethane foam, styrene foam, and phenol foam can be used. In addition, as the powder, an inorganic type, an organic type, and a mixture thereof can be used. Industrially, a powder mainly composed of dry silica, wet silica, pearlite, or the like can be used.

また、繊維体としては、無機系、有機系、およびこれらの混合物が利用できるが、コストと断熱性能の観点から無機繊維が有利である。無機繊維の一例としては、グラスウール、グラスファイバー、アルミナ繊維、シリカアルミナ繊維、シリカ繊維、ロックウール等、公知の材料を使用することができる。   In addition, as the fibrous body, an inorganic type, an organic type, and a mixture thereof can be used, but an inorganic fiber is advantageous from the viewpoint of cost and heat insulation performance. As an example of the inorganic fiber, known materials such as glass wool, glass fiber, alumina fiber, silica-alumina fiber, silica fiber, and rock wool can be used.

また、これら、発泡体、粉体、および繊維体等の混合物も適用することができる。   In addition, mixtures of these, such as foams, powders, and fibrous bodies, can also be applied.

外被材に使用するラミネートフィルムは、最内層を熱溶着層とし、中間層にはガスバリア層として、金属箔、或いは金属蒸着層を有し、最外層には表面保護層を設けたラミネートフィルムが適用できる。また、ラミネートフィルムは、金属箔を有するラミネートフィルムと金属蒸着層を有するラミネートフィルムの２種類のラミネートフィルムを組み合わせて適用しても良い。   The laminate film used for the outer cover material has a laminate film in which the innermost layer is a heat sealing layer, the intermediate layer is a gas barrier layer, a metal foil or a metal deposition layer, and the outermost layer is provided with a surface protective layer. Applicable. Further, the laminate film may be applied by combining two types of laminate films, that is, a laminate film having a metal foil and a laminate film having a metal deposition layer.

なお、熱溶着層としては、低密度ポリエチレンフィルム、鎖状低密度ポリエチレンフィルム、高密度ポリエチレンフィルム、ポリプロピレンフィルム、ポリアクリロニトリルフィルム、無延伸ポリエチレンテレフタレートフィルム、エチレン−ビニルアルコール共重合体フィルム、或いはそれらの混合体等を用いることができる。   In addition, as the heat welding layer, a low-density polyethylene film, a chain low-density polyethylene film, a high-density polyethylene film, a polypropylene film, a polyacrylonitrile film, a non-oriented polyethylene terephthalate film, an ethylene-vinyl alcohol copolymer film, or a film thereof. A mixture or the like can be used.

表面保護層としては、ナイロンフィルム、ポリエチレンテレフタレートフィルム、ポリプロピレンフィルムの延伸加工品など、公知の材料が利用できる。   As the surface protective layer, known materials such as a stretched product of a nylon film, a polyethylene terephthalate film, and a polypropylene film can be used.

以下、本発明による実施の形態について、図面を参照しながら説明する。なお、この実施の形態によってこの発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiment.

（実施の形態１）
図１は、本発明の実施の形態１における多芯真空断熱材の平面図、図２は図１のＡ−Ａ線断面図である。 (Embodiment 1)
FIG. 1 is a plan view of a multi-core vacuum heat insulating material according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view taken along line AA of FIG.

本実施の形態の真空断熱材１０は、１６個の略正八角形に成形された粉体の圧縮成形体からなる厚さ３ｍｍの芯材１１をガスバリア性のラミネートフィルムからなる外被材１２で覆い外被材１２の内部を減圧して成り、この１６個の芯材１１は、格子状に、縦（横）方向に隣接する芯材１１と横（縦）の辺が対向するように、かつ、互いに、略八角形の芯材１１の一辺の長さに芯材１１を覆う外被材１２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔で隔離して配置しており、この１６個の芯材１１のそれぞれが独立した空間内に位置するように芯材１１の周囲に外被材１２の熱溶着部１３が設けられているものである。熱溶着部１３は、略八角形の芯材１１の周囲に沿うように外被材１２に形成されている。   The vacuum heat insulating material 10 of the present embodiment covers a core material 11 having a thickness of 3 mm, which is formed of 16 compression molded bodies of powder formed into substantially regular octagons, with a covering material 12 formed of a gas barrier laminated film. The interior of the outer cover material 12 is decompressed, and the 16 core materials 11 are arranged in a lattice shape such that the adjacent core materials 11 in the vertical (horizontal) direction face the horizontal (vertical) sides, and Are arranged at a predetermined interval slightly larger than the length of one side of the substantially octagonal core material 11 plus four times the thickness of the jacket material 12 covering the core material 11. The heat-welded portion 13 of the jacket 12 is provided around the core 11 so that each of the 16 cores 11 is located in an independent space. The heat-welded portion 13 is formed on the outer cover material 12 along the periphery of the substantially octagonal core material 11.

なお、この時、外被材１２のガスバリア層にはアルミ蒸着フィルムを積層したものを使用した。   At this time, the gas barrier layer of the jacket material 12 used was a laminate of aluminum vapor-deposited films.

本実施の形態では、真空断熱材１０の外被材１２は、隣接する芯材１１の間に位置する部分の外被材１２がすべて熱溶着されているので、芯材１１と熱溶着部１３の間に芯材を間に含まない外被材の非熱溶着部が存在しておらず、熱溶着部１３は芯材形状に沿うように真空断熱材１０が形成されている。   In the present embodiment, the outer cover material 12 of the vacuum heat insulating material 10 is entirely heat-welded to the portion of the outer cover material 12 located between the adjacent core materials 11. There is no non-heat-welded portion of the jacket material that does not include a core material therebetween, and the vacuum heat-insulating material 10 is formed so that the heat-welded portion 13 follows the shape of the core material.

次に、この真空断熱材１０の製造方法の一例について説明する。   Next, an example of a method for manufacturing the vacuum heat insulating material 10 will be described.

図３は本発明の実施の形態１における真空断熱材の製造方法で使用する真空包装機の概略断面図である。   FIG. 3 is a schematic sectional view of a vacuum packaging machine used in the method for manufacturing a vacuum heat insulating material according to Embodiment 1 of the present invention.

図３において、気密室を構成できる真空包装機１４の内部には、長方形にカットされたガスバリア性の外被材１２ａが、熱溶着層側を上側にして真空包装機１４の供試台１５に設置されている。この供試台１５にはコンベア(図示せず)が設置されており、外被材１２ａを図中右から左へ移動させることができる。   In FIG. 3, inside a vacuum packaging machine 14 that can constitute an airtight chamber, a gas-barrier outer casing material 12 a cut into a rectangle is placed on a test table 15 of the vacuum packaging machine 14 with the heat-welding layer side facing upward. is set up. A conveyor (not shown) is provided on the test stand 15 so that the outer cover material 12a can be moved from right to left in the figure.

外被材１２ａの上には芯材１１が配置され、その上に外被材１２ｂがその熱溶着層側が芯材１１側を向くように、かつ上下の外被材１２ａ，１２ｂの各端面がほぼ一致するように配置される。   A core material 11 is disposed on the jacket material 12a, and a jacket material 12b is placed on the core material 11 so that the heat-welded layer side faces the core material 11, and each end face of the upper and lower jacket materials 12a and 12b is They are arranged so that they almost match.

真空包装機１４において、加熱加圧により熱溶着するための熱板１６は供試台１５の中央付近の上下部位に位置しており、外被材１２ａ，１２ｂを図３の手前側から奥行き側の方向に渡り熱溶着することができる位置に配置されている。   In the vacuum packaging machine 14, a hot plate 16 for heat welding by heating and pressurization is located in the upper and lower portions near the center of the test table 15, and the outer cover materials 12a and 12b are moved from the near side to the depth side in FIG. Are arranged at positions where they can be thermally welded in the direction of.

また、芯材１１はそれぞれが所定間隔をおいて配置されている。真空包装機１４の蓋１７を閉じて真空ポンプ１８の運転を開始すると、真空包装機１４の内部は排気され１０Ｐａ以下に減圧した後、コンベアが動いて外被材１２ａ，１２ｂを熱板１６の幅以下で所定距離移動させた後停止し、熱板１６が加熱加圧することにより外被材１２ａ，１２ｂに熱溶着部１３が形成される。   The core members 11 are arranged at predetermined intervals. When the lid 17 of the vacuum packaging machine 14 is closed and the operation of the vacuum pump 18 is started, the inside of the vacuum packaging machine 14 is evacuated and decompressed to 10 Pa or less, and then the conveyor moves to move the jacket materials 12a and 12b to the hot plate 16. After being moved a predetermined distance below the width, the heating plate 16 is stopped, and the hot plate 16 is heated and pressurized, so that the heat-welded portions 13 are formed on the jacket materials 12a and 12b.

この操作を減圧中で繰り返すことにより、すべての芯材１１がそれぞれが独立した空間内に位置し、かつ、芯材１１の周囲に沿うように熱溶着部１３が形成された真空断熱材１０を製造することができる。   By repeating this operation under reduced pressure, all the core materials 11 are located in the independent spaces, and the vacuum heat insulating material 10 in which the heat welding portion 13 is formed along the periphery of the core material 11 is formed. Can be manufactured.

このように熱溶着することにより、外被材１２ａ，１２ｂ間に芯材１１がある部分の全てが加熱加圧されているため、真空包装後の大気開放時においても、大気圧による芯材１１の圧縮変形の影響を最小限とすることができる。特に、加熱加圧時の加圧力を１ｋｇ／ｃｍ2 以上とすることで、大気開放時の大気圧縮による芯材１１の圧縮変形が完全に抑制できるため、圧縮変形の大きい芯材材料を適用した場合にも、芯材端部は芯材形状に沿うように熱溶着部１３を有する真空断熱材１０とすることができる。 By performing the heat welding in this manner, the entire portion where the core material 11 is located between the outer cover materials 12a and 12b is heated and pressed. Can minimize the influence of the compression deformation. In particular, by setting the pressing force at the time of heating and pressurizing to 1 kg / cm 2 or more, the compressive deformation of the core material 11 due to the atmospheric compression at the time of opening to the atmosphere can be completely suppressed. Also in this case, the vacuum heat insulating material 10 having the heat-welded portion 13 at the end of the core material along the shape of the core material can be used.

また同時に、外被材１２ａ，１２ｂ間に芯材１１がある部分の全てが加熱加圧されているため、外被材１２ａ，１２ｂの間に芯材１１を挟んでいる部分の熱溶着層が加熱加圧時に溶融して芯材１１の表面部分と結着するため、外被材１２と芯材１１とのサンドイッチ構造がより強固なものとなり、剛性の高い真空断熱材１０とすることができる。   At the same time, since all of the portion where the core material 11 is located between the jacket materials 12a and 12b is heated and pressed, the heat-welded layer at the portion where the core material 11 is sandwiched between the jacket materials 12a and 12b is formed. Since it is melted and bonded to the surface of the core material 11 when heated and pressed, the sandwich structure between the jacket material 12 and the core material 11 becomes stronger, and the vacuum heat insulating material 10 having high rigidity can be obtained. .

なお、本実施の形態では、外被材１２間に芯材１１がある部分を含めて所定回数加熱加圧することにより、対向する外被材１２の熱溶着層同士を芯材形状に沿うように熱溶着する真空断熱材の製造法を示したが、熱板１６をガスバリア性の外被材１２ａ，１２ｂの寸法より大きくすると、熱板１６を一回だけ加熱加圧することで熱溶着部１３を形成する製造方法とすることができる。   In the present embodiment, by heating and pressing a predetermined number of times including the portion where the core material 11 is present between the jacket materials 12, the heat-welded layers of the facing jacket materials 12 are aligned with the core material shape. The method of manufacturing the vacuum heat insulating material to be heat-welded has been described. However, if the size of the heat plate 16 is larger than the dimensions of the gas barrier coating materials 12a and 12b, the heat plate 16 is heated and pressurized only once so that the heat-welded portion 13 is formed. It can be a manufacturing method of forming.

また、本実施の形態では、一度に複数の芯材１１を真空包装する方法を示したが、真空包装時の芯材数量は形状等に応じて１個から任意に製造することができる。   Further, in the present embodiment, the method of vacuum-packaging a plurality of core materials 11 at one time has been described, but the number of core materials at the time of vacuum packaging can be arbitrarily manufactured from one according to the shape and the like.

また、本実施の形態による真空断熱材１０の芯材１１の形状は略八角形であるが、三角形、四角形、多角形、円形、Ｌ型、およびこれらの組み合わせからなる任意形状が選定できる。   Although the shape of the core material 11 of the vacuum heat insulating material 10 according to the present embodiment is substantially octagonal, any shape including a triangle, a quadrangle, a polygon, a circle, an L shape, and a combination thereof can be selected.

（実施の形態２）
以下、本発明の実施の形態２における真空断熱材について説明するが、実施の形態１と同一構成については同一符号を付してその詳細な説明は省略する。 (Embodiment 2)
Hereinafter, the vacuum heat insulating material according to the second embodiment of the present invention will be described. However, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図４、図５、および図６は、本発明の実施の形態２における真空断熱材の平面図である。   FIGS. 4, 5, and 6 are plan views of the vacuum heat insulating material according to the second embodiment of the present invention.

本実施の形態の真空断熱材２０，２２，２５は、実施の形態１における真空断熱材１０の熱溶着部１３において、芯材１１との間に所定幅の熱溶着部が残るように切断して形成した真空断熱材である。   The vacuum heat insulators 20, 22, 25 according to the present embodiment are cut so that a heat weld portion of a predetermined width remains between the core material 11 and the heat weld portion 13 of the vacuum heat insulator 10 according to the first embodiment. It is a vacuum heat insulating material formed by heating.

このうち、図４に示す真空断熱材２０は、芯材１１との間に所定幅の熱溶着部２１が残るように略芯材形状に切断して形成した真空断熱材である。   Among them, the vacuum heat insulating material 20 shown in FIG. 4 is a vacuum heat insulating material formed by cutting into a substantially core material shape so that the heat-welded portion 21 having a predetermined width remains between the core material 11 and the core material 11.

図５に示す真空断熱材２２は、芯材１１との間に所定幅の熱溶着部２３が残るように略芯材形状に切断し、かつその熱溶着部２３のコーナー部２４を円形に切り落としている。   The vacuum heat insulating material 22 shown in FIG. 5 is cut into a substantially core material shape so that a heat-welded portion 23 having a predetermined width remains between the core material 11 and the corner portion 24 of the heat-welded portion 23 is cut off in a circular shape. ing.

図６に示す真空断熱材２５は、芯材形状よりも一回り大きい円形の熱溶着部２６となるように形成したものである。   The vacuum heat insulating material 25 shown in FIG. 6 is formed so as to be a circular heat-welded portion 26 which is slightly larger than the core material shape.

このように本実施の形態では、真空断熱材２０，２２，２５の周縁部において非熱溶着部が存在しておらず、芯材形状に沿うように熱溶着部２１，２３，２６が形成されているため有効断熱面積が大きく、かつ任意形状の真空断熱材２０，２２，２５が成形できる。また、熱溶着部２１，２３，２６は芯材１１との間に所定幅が残るように切断されているため適用するアプリケーションに適した形状の真空断熱材とすることが可能となり、その適合性が飛躍的に改善される。   As described above, in the present embodiment, the non-heat-welded portions do not exist in the peripheral portions of the vacuum heat insulating materials 20, 22, 25, and the heat-welded portions 21, 23, 26 are formed along the core material shape. Therefore, the vacuum heat insulating materials 20, 22, 25 having a large effective heat insulating area and an arbitrary shape can be formed. In addition, since the heat-welded portions 21, 23, and 26 are cut so as to leave a predetermined width between the core material 11 and the heat-welded portions 21, 23, and 26, a vacuum heat insulating material having a shape suitable for an application to be applied can be obtained. Is dramatically improved.

なお、真空断熱材２０の熱溶着部２１は、幅が５ｍｍとなるように切断している。この熱溶着部２１の幅は断熱性能の経時性能に影響する因子であり、この幅が大きいほど経時断熱性能は良好であるが、真空断熱材２０の適用環境や必要とする耐久年数に応じて任意に設定することができる。しかし、有効断熱面積を大きくするという観点から、熱溶着部２１の幅は３ｍｍ〜５ｍｍ程度に設定することが望ましい。   Note that the heat-welded portion 21 of the vacuum heat insulating material 20 is cut so as to have a width of 5 mm. The width of the heat-welded portion 21 is a factor affecting the aging performance of the heat insulation performance. The larger the width is, the better the aging heat performance is. However, depending on the application environment of the vacuum heat insulating material 20 and the required durability period, It can be set arbitrarily. However, from the viewpoint of increasing the effective heat insulation area, it is desirable that the width of the heat-welded portion 21 be set to about 3 mm to 5 mm.

更に、熱溶着部の形状は特に指定されるものではなく、真空断熱材２２，２５のように、使用環境やアプリケーションに対する適合性に応じて任意の形状が選定できる。   Further, the shape of the heat-welded portion is not particularly specified, and any shape, such as the vacuum heat insulating materials 22 and 25, can be selected according to the use environment and suitability for the application.

次に、この真空断熱材２０，２２，２５の製造方法の一例について説明する。   Next, an example of a method of manufacturing the vacuum heat insulating materials 20, 22, 25 will be described.

まず、実施の形態１と同様の方法で、多芯真空断熱材を作製する。多芯真空断熱材において、外被材の熱溶着部分を、芯材１１との間に所定幅の熱溶着部が残存するようにトムソンやカッター等を用いて切断することで、所定の真空断熱材２０，２２，２５が作製できる。   First, a multi-core vacuum heat insulating material is manufactured in the same manner as in the first embodiment. In the multi-core vacuum heat insulating material, the heat-welded portion of the jacket material is cut using a Thomson or a cutter or the like so that a heat-welded portion of a predetermined width remains between itself and the core material 11 to obtain a predetermined vacuum heat-insulation. Materials 20, 22, 25 can be produced.

よって、真空断熱材の芯材外周部の熱溶着部により構成される周縁部は小さくなり、かつ任意の形状を有する真空断熱材が作製できる。また、このように略同一平面上に複数の芯材を互いに離間して配置する多芯真空断熱材を製造し、その後、多芯真空断熱材から所定の真空断熱材を順次切り離すことで、一回の減圧操作で、多数の真空断熱材、或いは大きさや形の異なる複数の真空断熱材を効率的に作製することができる。   Therefore, the peripheral edge portion formed by the heat-welded portion on the outer peripheral portion of the core of the vacuum heat insulating material becomes small, and a vacuum heat insulating material having an arbitrary shape can be manufactured. In addition, a multi-core vacuum heat insulating material in which a plurality of core materials are arranged on a substantially same plane and separated from each other as described above is manufactured, and thereafter, a predetermined vacuum heat insulating material is sequentially separated from the multi-core vacuum heat insulating material. A large number of vacuum heat insulating materials or a plurality of vacuum heat insulating materials having different sizes and shapes can be efficiently produced by a single decompression operation.

（実施の形態３）
以下、本発明の実施の形態３における真空断熱材について説明するが、実施の形態１または２と同一構成については同一符号を付してその詳細な説明は省略する。 (Embodiment 3)
Hereinafter, the vacuum heat insulating material according to the third embodiment of the present invention will be described. However, the same components as those in the first or second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図７と図８は、本発明の実施の形態３における真空断熱材の平面図である。   7 and 8 are plan views of a vacuum heat insulating material according to Embodiment 3 of the present invention.

本実施の形態の真空断熱材３０と真空断熱材３５は、粉体の圧縮成形体からなる厚さ２ｍｍの板状の芯材を所定のトムソンを用いて切り抜いた四角形と円形の組み合わせからなる所定形状を有し、１乃至２箇所の貫通孔３３，３６を有する芯材３１ａ，３１ｂを、それぞれガスバリア性の外被材１２ａ，１２ｂで覆い外被材１２ａ，１２ｂの内部を減圧して成り、芯材３１ａ，３１ｂの周囲に沿うように熱溶着部３２ａを形成したものである。この時、熱溶着部３２ａは芯材の周縁部に３ｍｍの幅で残るように切断し、真空断熱材３０および真空断熱材３５を形成している。   The vacuum heat insulating material 30 and the vacuum heat insulating material 35 of the present embodiment are each formed of a combination of a square and a circle obtained by cutting out a plate-shaped core material having a thickness of 2 mm made of a powder compact and using a predetermined Thomson. A core material 31a, 31b having a shape and having one or two through holes 33, 36 is covered with a gas barrier material 12a, 12b, respectively, and the inside of the material 12a, 12b is decompressed, A heat-welded portion 32a is formed along the periphery of the core members 31a and 31b. At this time, the heat-welded portion 32a is cut so as to have a width of 3 mm at the peripheral edge of the core material to form the vacuum heat insulating material 30 and the vacuum heat insulating material 35.

ここで、図７に示す真空断熱材３０には、貫通孔３３が形成されているが、この貫通孔３３の内周部においても芯材形状に沿うように熱溶着部３２ｂが設けられている。この時、熱溶着部３２ｂは外周と同様に芯材３１ａとの間に幅３ｍｍが残るように切断され、貫通孔３３を有する真空断熱材３０を形成している。   Here, a through-hole 33 is formed in the vacuum heat insulating material 30 shown in FIG. 7, and a heat-welded portion 32 b is also provided in the inner peripheral portion of the through-hole 33 so as to follow the core material shape. . At this time, the heat-welded portion 32b is cut so that a width of 3 mm remains between the heat-welded portion 32b and the core material 31a to form the vacuum heat insulating material 30 having the through hole 33.

一方、図８に示す真空断熱材３５には、芯材３１ｂに円形の貫通孔３６を２個有するが、この貫通孔３６に位置する外被材１２ｂには孔が設けられておらず、熱溶着層同士が熱溶着した外被材がそのまま残っている。   On the other hand, the vacuum heat insulating material 35 shown in FIG. 8 has two circular through holes 36 in the core material 31b, but no hole is provided in the jacket material 12b located in the through holes 36, The jacket material in which the welding layers are thermally welded to each other remains.

これらの結果、真空断熱材３０と真空断熱材３５は、芯材３１ａ，３１ｂが四角形と円形の組み合わせからなり、適用するアプリケーションの形状に適合した複雑な形状であるが、芯材形状に沿うように熱溶着部３２ａ，３２ｂが形成されるため、略芯材形状の真空断熱材が容易に作製できる。   As a result, the vacuum heat insulating material 30 and the vacuum heat insulating material 35 have a complex shape conforming to the shape of the application to which the core materials 31a and 31b are made of a combination of a square and a circle, and conform to the shape of the core material. Since the heat-welded portions 32a and 32b are formed on the substrate, a substantially core-shaped vacuum heat insulating material can be easily manufactured.

また、図７に示す真空断熱材３０は貫通孔３３を有するため、断熱を必要とする部位にリブやその他部品等の突起部が存在する場合にも、貫通孔３３にてそれをさけることで効率良く真空断熱材３０を適用することができる。   Further, since the vacuum heat insulating material 30 shown in FIG. 7 has the through holes 33, even if there are protrusions such as ribs and other parts in the portions requiring heat insulation, the protrusions can be avoided by the through holes 33. The vacuum heat insulating material 30 can be applied efficiently.

図８に示す真空断熱材３５は、芯材３１ｂの貫通孔３６の部分において、外被材１２ｂの間に芯材３１ｂを含まず、かつ、熱溶着層同士が熱溶着した外被材１２ｂを有するため、この部位をビス等で固定することができ、真空断熱材３５を容易に固定配設することができ、優れた取付け性を有するものになる。   The vacuum heat insulating material 35 shown in FIG. 8 has a structure in which the core material 31b is not included between the outer cover materials 12b in the portion of the through hole 36 of the core material 31b, and the heat welded layers are heat welded to each other. Therefore, this portion can be fixed with a screw or the like, and the vacuum heat insulating material 35 can be easily fixed and provided, so that excellent mounting properties can be obtained.

このように、断熱を必要とする機器の形状に応じて任意形状を有する真空断熱材を成形することができるため、アプリケーションに対する適合性が飛躍的に拡大する。   As described above, since a vacuum heat insulating material having an arbitrary shape can be formed according to the shape of a device that requires heat insulation, suitability for an application is dramatically increased.

なお、本実施の形態では厚さ２ｍｍの板状の芯材を適用しており、真空断熱材の厚さは２．１ｍｍを超えない程度であるが、真空断熱材の厚さが５ｍｍを超えるような場合、芯材の存在しない周縁部はしわなどの不具合が発生しやすくなり、厚さが１０ｍｍを超えると芯材形状に沿うように熱溶着部を形成できず、芯材と熱溶着部の間に芯材を含まない非溶着部が形成されるようになる。   In this embodiment, a plate-shaped core material having a thickness of 2 mm is applied, and the thickness of the vacuum heat insulating material is not more than 2.1 mm, but the thickness of the vacuum heat insulating material is more than 5 mm. In such a case, defects such as wrinkles are likely to occur in the peripheral portion where the core material does not exist. When the thickness exceeds 10 mm, a heat-welded portion cannot be formed along the shape of the core material, and the core material and the heat-welded portion are not formed. A non-welded portion that does not include a core material is formed therebetween.

これは、真空断熱材の芯材厚さが大きくなるほど、熱溶着時に弾性体からなる熱板が芯材形状に追従しなくなったり、厚みに起因する外被材の余り分をきれいに処理できなくなったりするためである。   This is because as the thickness of the core material of the vacuum heat insulating material increases, the hot plate made of an elastic material does not follow the shape of the core material at the time of heat welding, or the excess of the jacket material due to the thickness cannot be treated cleanly. To do that.

一方、真空断熱材の厚さが０．５ｍｍを下回る場合は、内部の芯材厚さが充分に確保できず、優れた断熱性能が確保することが困難になる。ただし、スペースが極薄い中で、必要な断熱性能が小さいのであれば適用することは不可能ではない。   On the other hand, when the thickness of the vacuum heat insulating material is less than 0.5 mm, the inner core material thickness cannot be sufficiently secured, and it becomes difficult to secure excellent heat insulating performance. However, it is not impossible to apply if the required heat insulation performance is small in a very thin space.

（実施の形態４）
以下、本発明の実施の形態４における真空断熱材について説明するが、実施の形態１または２と同一構成については同一符号を付してその詳細な説明は省略する。 (Embodiment 4)
Hereinafter, the vacuum heat insulating material according to the fourth embodiment of the present invention will be described. However, the same components as those in the first or second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図９は、本発明の実施の形態４における真空断熱材の平面図、図１０は図９のＢ−Ｂ線断面図である。   FIG. 9 is a plan view of a vacuum heat insulating material according to Embodiment 4 of the present invention, and FIG. 10 is a sectional view taken along line BB of FIG.

本実施の形態の真空断熱材４０は、粉体の圧縮成形体からなる厚さ１ｍｍの板状の芯材を所定のトムソンを用いて切り抜いた所定形状を有する２枚の芯材４１を、ガスバリア性の外被材１２で覆い外被材１２の内部を減圧して成り、芯材４１の周囲に沿うように熱溶着部分を設け、芯材４１の周縁部に所定幅の熱溶着部４２が残るように溶断して真空断熱材４０を形成している。   The vacuum heat insulating material 40 of the present embodiment is obtained by cutting two core materials 41 having a predetermined shape obtained by cutting out a plate-shaped core material having a thickness of 1 mm made of a powder compact and using a predetermined Thompson. A heat-welded portion is provided along the periphery of the core material 41, and a heat-welded portion 42 having a predetermined width is provided on the periphery of the core material 41. The vacuum insulation material 40 is formed by fusing so as to remain.

また、真空断熱材４０は、熱溶着部分の溶断時において、そのコーナー部４３を円形に溶断している。これにより、真空断熱材４０は、コーナー部４３のフィルムエッジ部にて、他の真空断熱材や、適用するアプリケーションのハーネス等を傷つけることがなく、その取り扱い性が大幅に改善する。更に、溶断部が内向きのＬ型となる内向きコーナー部分４４についても円形とすることで、Ｌ型コーナー部を起因とするクラックの発生が抑制され、その取り扱い性、および真空断熱材４０の信頼性が大幅に改善される。   Further, the vacuum heat insulating material 40 has its corner portion 43 blown in a circular shape when the heat-welded portion is blown. Thereby, the vacuum heat insulating material 40 does not damage other vacuum heat insulating materials or the harness of the application to be applied at the film edge portion of the corner portion 43, and the handling property is greatly improved. Furthermore, by making the inward corner portion 44 in which the fusing portion has an inward L-shape also circular, the occurrence of cracks due to the L-shaped corner portion is suppressed, and the handleability and vacuum insulation material 40 are reduced. The reliability is greatly improved.

更には、真空断熱材４０は、熱溶着部分が溶断により切断されていることから、溶断部４５は、その断面が略円形状態になって丸みを帯び、他の真空断熱材や適用するアプリケーションのハーネス等に対する傷つけ防止を図ることができる。   Furthermore, since the heat-welded portion of the vacuum heat insulating material 40 is cut by fusing, the fusing portion 45 has a substantially circular cross section and is rounded, and is used for other vacuum heat insulating materials and applied applications. Harness and the like can be prevented from being damaged.

また、熱溶着部分を溶断すると外被材１２を構成するラミネートフィルム最外層の樹脂が溶融し、溶融樹脂が少なくとも溶断断面の一部を被覆することから、外被材端面から経時的に侵入する侵入ガスを低減することができる。   Further, when the heat-welded portion is blown, the resin of the outermost layer of the laminate film constituting the jacket material 12 is melted, and the molten resin covers at least a part of the blown cross section, and thus invades with time from the end face of the jacket material. Invasive gas can be reduced.

本実施の形態の真空断熱材４０における侵入ガス量を実験的に算出した結果、溶断せずにトムソンにて切り出したものと比較して、外被材端面部から侵入する侵入ガス量は約１０％低減することが確認できた。   As a result of experimentally calculating the amount of invading gas in the vacuum heat insulating material 40 of the present embodiment, the amount of invading gas invading from the end face of the jacket material is about 10 times as compared with that cut out by Thomson without fusing. % Reduction was confirmed.

（実施の形態５）
図１１は本発明の真空断熱材の実施の形態５を示す平面図、図１２は図１１のＣ−Ｃ線断面図である。 (Embodiment 5)
FIG. 11 is a plan view showing a fifth embodiment of the vacuum heat insulating material of the present invention, and FIG. 12 is a sectional view taken along line CC of FIG.

本実施の形態の真空断熱材５０は、１６個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線５０ａ，５０ｂ，５０ｃ，５０ｄを形成できるように、格子状に、縦（横）方向に隣接する芯材５１と横（縦）の辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部５３が設けられているものである。   The vacuum heat insulating material 50 of the present embodiment covers a core material 51 made of 16 substantially regular octagonal glass fibers having a thickness of about 5 mm with a gas-barrier material 52, and covers the inside of the material 52. The sixteen core members 51 are located between the adjacent core members 51, and are folded in four directions of vertical, horizontal, and diagonal directions in parallel with each octagonal side of the core member 51. In order to form the curves 50a, 50b, 50c, and 50d, the core material 51 adjacent to the vertical (horizontal) direction and the horizontal (vertical) side are opposed to each other in a lattice shape, and the cores are substantially octagonal to each other. Each of the sixteen core members 51 is arranged at a predetermined interval slightly larger than the sum of the length of one side of the member 51 and four times the thickness of the covering member 52 covering the core member 51. Is provided around the core 51 so as to be located in an independent space. It is what is.

外被材５２としては、アルミ蒸着層またはアルミ箔層を中間層に有するラミネートフィルムを使用できる。また、芯材５１は、シート状のガラス繊維を重ねて多層化したものでもよい。   As the jacket material 52, a laminated film having an aluminum vapor-deposited layer or an aluminum foil layer as an intermediate layer can be used. Further, the core material 51 may be formed by stacking sheet-like glass fibers to form a multilayer.

本実施の形態の真空断熱材５０は、隣接する芯材５１の間に位置する外被材５２の熱溶着部５３で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、縦と横方向は、斜め方向より曲げやすい。   The vacuum heat insulating material 50 of the present embodiment is a heat-welded portion 53 of a jacket material 52 located between adjacent core materials 51, and is formed in a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction. Although it can be bent in four directions, it is easier to bend in the vertical and horizontal directions than in the diagonal directions.

以上のように本実施の形態の真空断熱材５０は、複数の略正八角形の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線５０ａ，５０ｂ，５０ｃ，５０ｄを形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部５３が設けられているので、４方向に真空断熱材５０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 50 of the present embodiment is formed by covering a plurality of substantially regular octagonal core materials 51 with the gas barrier outer material 52 and depressurizing the inside of the outer material 52. Numerals 51 are arranged in a lattice shape and are separated from each other by a predetermined distance so as to form fold curves 50a, 50b, 50c, and 50d in four directions at portions located between adjacent core materials. Since the heat-welded portion 53 of the jacket material 52 is provided around the core member 51 so as to be located in an independent space, the vacuum heat insulating material 50 can be bent in four directions. There are fewer restrictions on the shape of the object to be applied than with the heat insulating material, and the application is wide.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

本実施の形態では、真空断熱材５０の外周部に位置する外被材５２と隣接する芯材５１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部５３の幅が広く、そのため熱溶着部５３を通して各芯材５１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located on the outer peripheral portion of the vacuum heat insulating material 50 and the portion of the outer covering material 52 located between the adjacent core members 51 are all heat-welded, the heat-welded portions 53 are provided. Is wide, so that it is possible to considerably reduce the possibility that the degree of vacuum in the space in which each core material 51 enters through the heat welding portion 53 is reduced.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

なお、本実施の形態の真空断熱材５０は、縦横方向にそれぞれ４つの芯材５１が並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 50 of the present embodiment has four core members 51 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

また、真空断熱材５０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部５３の部分を切断することが好ましい。   When the vacuum heat insulating material 50 is applied, the heat insulating material 52 can be cut into a required size and shape. It is preferable to cut off the welded portion 53.

（実施の形態６）
以下、本発明の実施の形態６の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 6)
Hereinafter, a vacuum heat insulating material according to a sixth embodiment of the present invention will be described. However, the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図１３は本発明の真空断熱材の実施の形態６を示す平面図である。   FIG. 13 is a plan view showing Embodiment 6 of the vacuum heat insulating material of the present invention.

本実施の形態の真空断熱材６０は、１３個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１３個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線６０ａ，６０ｂ，６０ｃ，６０ｄを形成できるように、千鳥状に、斜め４５度方向に隣接する芯材５１と斜めの辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１３個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部５３が設けられているものである。   The vacuum heat insulating material 60 of the present embodiment covers 13 cores 51 of about 5 mm thick made of glass fibers molded into a substantially regular octagon with a gas-barrier outer material 52, and covers the inside of the outer material 52. The thirteen core members 51 are located between the adjacent core members 51, and are folded in four directions of vertical, horizontal, and oblique directions in parallel with each octagonal side of the core member 51. In order to form the curves 60a, 60b, 60c, and 60d, one side of the core material 51 that is adjacent to the core material 51 that is adjacent in the 45-degree direction in a staggered manner and that is obliquely opposed to each other and that is substantially octagonal to each other. Are separated from each other by a predetermined distance slightly larger than the sum of the length of the jacket material 52 covering the core material 51 and the thickness of the core material 51, and each of the 13 core materials 51 is an independent space. A heat-welded portion 53 of a jacket material 52 is provided around the core material 51 so as to be located inside. And those are.

本実施の形態の真空断熱材６０は、隣接する芯材５１の間に位置する外被材５２の熱溶着部５３で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、斜め方向は、縦または横方向より曲げやすい。   The vacuum heat insulating material 60 of the present embodiment is a heat-sealed portion 53 of a jacket material 52 located between the adjacent core materials 51, and is formed in a vertical direction, a horizontal direction, and an oblique direction of 45 degrees with respect to the vertical or horizontal direction. It can be bent in four directions, but it is easier to bend in the diagonal direction than in the vertical or horizontal direction.

以上のように本実施の形態の真空断熱材６０は、複数の略正八角形の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線６０ａ，６０ｂ，６０ｃ，６０ｄを形成できるように千鳥状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部５３が設けられているので、４方向に真空断熱材６０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 60 of the present embodiment is formed by covering a plurality of substantially regular octagonal core materials 51 with the gas barrier coating material 52 and depressurizing the inside of the coating material 52. Numerals 51 are arranged in a staggered manner and separated from each other by a predetermined distance so as to form fold curves 60a, 60b, 60c, and 60d in four directions at portions located between adjacent core materials. Since the heat-sealed portion 53 of the jacket material 52 is provided around the core member 51 so as to be located in an independent space, the vacuum heat insulating material 60 can be bent in four directions. There are fewer restrictions on the shape of the object to be applied than with the heat insulating material, and the application is wide.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

本実施の形態では、真空断熱材５０の外周部に位置する外被材５２と隣接する芯材５１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部５３の幅が広く、そのため熱溶着部５３を通して各芯材５１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located on the outer peripheral portion of the vacuum heat insulating material 50 and the portion of the outer covering material 52 located between the adjacent core members 51 are all heat-welded, the heat-welded portions 53 are provided. Is wide, so that it is possible to considerably reduce the possibility that the degree of vacuum in the space in which each core material 51 enters through the heat welding portion 53 is reduced.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

なお、本実施の形態の真空断熱材６０は、１３個の芯材５１が千鳥状に並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 60 of the present embodiment has the thirteen core materials 51 arranged in a staggered manner, the present invention is not limited to this.

また、真空断熱材６０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部５３の部分を切断することが好ましい。   Further, when the vacuum heat insulating material 60 is applied, the heat insulating material can be cut into a necessary size and shape. It is preferable to cut off the welded portion 53.

（実施の形態７）
以下、本発明の実施の形態７の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 7)
Hereinafter, a vacuum heat insulating material according to a seventh embodiment of the present invention will be described. However, the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図１４は本発明の真空断熱材の実施の形態７を示す平面図、図１５は図１４のＤ−Ｄ線断面図である。   FIG. 14 is a plan view showing Embodiment 7 of the vacuum heat insulating material of the present invention, and FIG. 15 is a cross-sectional view taken along line DD of FIG.

本実施の形態の真空断熱材７０は、１６個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線を形成できるように、格子状に、縦（横）方向に隣接する芯材５１と横（縦）の辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部７３が設けられ、隣接する芯材５１の間で、且つ、熱溶着部７３を間に挟んで芯材５１の外周側に、外被材５２が熱溶着されていない非熱溶着部７４を有するものである。   The vacuum heat insulating material 70 of the present embodiment covers the core material 51 made of 16 substantially regular octagonal glass fibers and having a thickness of about 5 mm with a gas-barrier outer material 52 and covers the inside of the outer material 52. The sixteen core members 51 are located between the adjacent core members 51, and are folded in four directions of vertical, horizontal, and diagonal directions in parallel with each octagonal side of the core member 51. In order to form a curved line, the core material 51 adjacent in the vertical (horizontal) direction and the horizontal (vertical) side face each other, and the length of one side of the substantially octagonal core material 51 is formed. Are separated from each other by a predetermined distance slightly larger than the sum of the thickness of the outer cover material 52 covering the core material 51 and fourteen times, and each of the 16 core materials 51 is located in an independent space. A heat welding portion 73 of the jacket material 52 is provided around the core material 51 so that One, on the outer peripheral side of the core material 51 sandwiched between the heat seal parts 73, and has a non-heat seal parts 74 of the enveloping member 52 is not thermally welded.

本実施の形態の真空断熱材７０は、隣接する芯材５１の間に位置する外被材５２の部分で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、縦と横方向は、斜め方向より曲げやすい。   The vacuum heat insulating material 70 according to the present embodiment is a portion of the jacket material 52 located between the adjacent core materials 51, and is provided in four directions of a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction. It can be bent, but it is easier to bend in the vertical and horizontal directions than in the diagonal direction.

以上のように本実施の形態の真空断熱材７０は、複数の略正八角形の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線を形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部７３が設けられているので、４方向に真空断熱材７０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 70 of the present embodiment is formed by covering the plurality of substantially regular octagonal core members 51 with the gas barrier outer material 52 and depressurizing the inside of the outer material 52, Numerals 51 are arranged at predetermined intervals from each other in a lattice so as to form a fold curve in four directions at a portion located between adjacent core materials, and each of the plurality of core materials 51 is placed in an independent space. Since the heat-welded portion 73 of the jacket material 52 is provided around the core material 51 so as to be located, the vacuum heat insulating material 70 can be bent in four directions, so that the object to which the conventional vacuum heat insulating material is applied can be used. There are few restrictions on the shape of objects, and it is widely used.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

また、隣接する芯材５１の間で、且つ、熱溶着部７３を間に挟んで芯材５１の外周側に、外被材５２が熱溶着されていない非熱溶着部７４を有するので、熱溶着部７３をパターン化しやすいので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   Further, since the non-heat-welded portion 74 to which the outer cover material 52 is not heat-welded is provided between the adjacent core materials 51 and on the outer peripheral side of the core material 51 with the heat-welded portion 73 interposed therebetween. Since the welding portion 73 is easily patterned, the welding device can be reduced in size and simplified, and the welding operation can be easily performed.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

なお、本実施の形態の真空断熱材７０は、縦横方向にそれぞれ４つの芯材５１が並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 70 of the present embodiment has four core members 51 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

なお、図１６に示す本実施の形態の変形例の真空断熱材７０ａのように、芯材５１の周囲に設けられる外被材５２の熱溶着部７３ａは、芯材５１のそれぞれに対して独立して設けられる、芯材５１を囲む略正八角形のドーナツ形とし、熱溶着部７３ａ以外の部分の外被材５２を非熱溶着部７４ａとしても構わない。   In addition, like the vacuum heat insulating material 70 a of the modification of the present embodiment shown in FIG. 16, the heat welded portions 73 a of the jacket material 52 provided around the core material 51 are independent of each of the core materials 51. The core material 51 may be provided in a substantially regular octagonal donut shape, and the outer cover material 52 other than the heat-welded portion 73a may be a non-heat-welded portion 74a.

また、真空断熱材７０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部７３または非熱溶着部７４の部分を切断することが好ましい。   When the vacuum heat insulating material 70 is applied, the heat insulating material 52 can be cut into a required size and shape, but at the time of cutting, the heat of the outer cover material 52 is minimized in order to minimize a decrease in heat insulating performance. It is preferable to cut off the welded portion 73 or the non-thermally welded portion 74.

なお、図１６に示す本実施の形態の変形例の真空断熱材７０ａの切断時は、断熱性能の低下を最小限に止めるために、外被材５２の非熱溶着部７４ａの部分を切断することが好ましい。   At the time of cutting the vacuum heat insulating material 70a according to the modification of the present embodiment shown in FIG. 16, the non-heat-welded portion 74a of the jacket material 52 is cut in order to minimize a decrease in heat insulating performance. Is preferred.

（実施の形態８）
以下、本発明の実施の形態８の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 8)
Hereinafter, a vacuum heat insulating material according to an eighth embodiment of the present invention will be described. However, the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図１７は本発明の真空断熱材の実施の形態８を示す平面図、図１８は図１７のＥ−Ｅ線断面図である。   FIG. 17 is a plan view showing Embodiment 8 of the vacuum heat insulating material of the present invention, and FIG. 18 is a sectional view taken along line EE of FIG.

本実施の形態の真空断熱材８０は、１６個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線を形成できるように、格子状に、縦（横）方向に隣接する芯材５１と横（縦）の辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部８３が設けられ、さらに、隣接する芯材５１との間に所定幅の熱溶着部８３が残るように、外被材５２に円形の孔８４を設けたものである。   The vacuum heat insulating material 80 of the present embodiment covers a core material 51 made of glass fiber molded into approximately 16 regular octagons and having a thickness of about 5 mm with a gas-barrier outer material 52 and the inside of the outer material 52. The sixteen core members 51 are located between the adjacent core members 51, and are folded in four directions of vertical, horizontal, and diagonal directions in parallel with each octagonal side of the core member 51. In order to form a curved line, the core material 51 adjacent in the vertical (horizontal) direction and the horizontal (vertical) side face each other, and the length of one side of the substantially octagonal core material 51 is formed. Are separated from each other by a predetermined distance slightly larger than the sum of the thickness of the outer cover material 52 covering the core material 51 and fourteen times, and each of the 16 core materials 51 is located in an independent space. A heat-welded portion 83 of the jacket material 52 is provided around the core 51 so that As the heat seal parts 83 of specified width remains between, in which the enveloping member 52 provided with a circular hole 84.

本実施の形態の真空断熱材８０は、隣接する芯材５１の間に位置する外被材５２の熱溶着部８３で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、縦と横方向は、斜め方向より曲げやすい。   The vacuum heat insulating material 80 according to the present embodiment is a heat-welded portion 83 of the outer cover material 52 located between the adjacent core materials 51, and is formed in a vertical direction, a horizontal direction, an oblique direction at 45 degrees to the vertical or horizontal direction. Although it can be bent in four directions, it is easier to bend in the vertical and horizontal directions than in the diagonal directions.

以上のように本実施の形態の真空断熱材８０は、複数の略正八角形の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線を形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部８３が設けられているので、４方向に真空断熱材８０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 80 of the present embodiment is formed by covering a plurality of substantially regular octagonal core members 51 with the gas barrier outer material 52 and depressurizing the inside of the outer material 52. Numerals 51 are arranged at predetermined intervals from each other in a lattice so as to form a fold curve in four directions at a portion located between adjacent core materials, and each of the plurality of core materials 51 is placed in an independent space. Since the heat-welded portion 83 of the jacket material 52 is provided around the core material 51 so as to be located, the vacuum heat insulating material 80 can be bent in four directions, so that the object to which the conventional vacuum heat insulating material is applied can be used. There are few restrictions on the shape of objects, and it is widely used.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

本実施の形態では、真空断熱材８０の外周部に位置する外被材５２と隣接する芯材５１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部８３の幅が広く、そのため熱溶着部８３を通して各芯材５１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located at the outer peripheral portion of the vacuum heat insulating material 80 and the portion of the outer covering material 52 located between the adjacent core materials 51 are all heat-welded, the heat-welded portions 83 Is wide, so that the possibility that the degree of vacuum in the space in which each core material 51 enters through the heat welding portion 83 is reduced can be considerably reduced.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

また、本実施の形態の真空断熱材８０は、隣接する芯材５１との間に所定幅の熱溶着部８３が残るように、外被材５２に孔８４を設けたものであり、真空断熱材８０における断熱性能の低下の影響が少ない部分に孔８４があいているので、真空断熱材８０の一方の面から他方の面に、空気や水を排出する必要がある用途や、適用箇所の都合上、物（例えば、管などの部品）を通す必要がある用途や、真空断熱材８０と発泡断熱材と組み合わせた複合断熱材において、製造の都合上、真空断熱材の一方の面から他方の面に、発泡断熱材を流す必要がある所にも適用できる。例えば、この真空断熱材８０を衣類に設けて防寒具とした場合は、この孔８４から、汗の蒸気を外部に放出することができ、防寒具の内側が蒸れず快適である。   Further, the vacuum heat insulating material 80 of the present embodiment is provided with a hole 84 in the outer cover material 52 so that a heat-welded portion 83 having a predetermined width remains between the vacuum heat insulating material 80 and the adjacent core material 51. Since the hole 84 is formed in a portion of the material 80 where the influence of the deterioration of the heat insulation performance is small, the vacuum heat insulating material 80 needs to discharge air or water from one surface to the other surface. In applications where it is necessary to pass an object (for example, a part such as a tube) for convenience, or in a composite insulation material in which a vacuum insulation material 80 and a foam insulation material are combined, for convenience of production, one side of the vacuum insulation material to the other side may be used. It can also be applied to places where it is necessary to flow foam insulation on the surface. For example, when the vacuum heat insulating material 80 is provided on clothing to provide cold protection, sweat vapor can be released to the outside through the hole 84, so that the inside of the cold protection is not stuffy and comfortable.

なお、本実施の形態の真空断熱材８０は、縦横方向にそれぞれ４つの芯材５１が並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 80 of the present embodiment has four core members 51 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

また、真空断熱材８０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部８３の部分を切断することが好ましい。   When the vacuum heat insulating material 80 is applied, the heat insulating material 52 can be cut into a required size and shape, but when cutting, the heat of the outer cover material 52 is minimized in order to minimize a decrease in heat insulating performance. It is preferable to cut off the welded portion 83.

（実施の形態９）
以下、本発明の実施の形態９の真空断熱材について説明するが、実施の形態５または３と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 9)
Hereinafter, a vacuum heat insulating material according to a ninth embodiment of the present invention will be described. However, the same components as those in the fifth or third embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図１９は本発明の真空断熱材の実施の形態９を示す平面図、図２０は図１９のＦ−Ｆ線断面図である。   FIG. 19 is a plan view showing Embodiment 9 of the vacuum heat insulating material of the present invention, and FIG. 20 is a sectional view taken along line FF of FIG.

本実施の形態の真空断熱材９０は、１６個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線を形成できるように、格子状に、縦（横）方向に隣接する芯材５１と横（縦）の辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部９３が設けられ、且つ、隣接する芯材５１の間で、且つ、熱溶着部９３を間に挟んで芯材５１の外周側に、外被材５２が熱溶着されていない非熱溶着部９５を有し、隣接する芯材５１との間に所定幅の熱溶着部９３が残るように、外被材５２の非熱溶着部９５に孔９４を設けたものである。   The vacuum heat insulating material 90 according to the present embodiment covers the core material 51 made of glass fibers molded into approximately 16 regular octagons and having a thickness of about 5 mm with a gas-barrier outer material 52 and covers the inside of the outer material 52. The sixteen core members 51 are located between the adjacent core members 51, and are folded in four directions of vertical, horizontal, and diagonal directions in parallel with each octagonal side of the core member 51. In order to form a curved line, the core material 51 adjacent in the vertical (horizontal) direction and the horizontal (vertical) side face each other, and the length of one side of the substantially octagonal core material 51 is formed. Are separated from each other by a predetermined distance slightly larger than the sum of the thickness of the outer cover material 52 covering the core material 51 and fourteen times, and each of the 16 core materials 51 is located in an independent space. A heat-welded portion 93 of the jacket material 52 is provided around the core material 51 so that And a non-heat-welded portion 95 in which the jacket material 52 is not heat-welded to the outer peripheral side of the core material 51 with the heat-welded portion 93 interposed therebetween. A hole 94 is provided in the non-heat-welded portion 95 of the jacket material 52 so that the heat-welded portion 93 having a width remains.

本実施の形態の真空断熱材９０は、隣接する芯材５１の間に位置する外被材５２の部分で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、縦と横方向は、斜め方向より曲げやすい。   The vacuum heat insulating material 90 of the present embodiment is a portion of the outer cover material 52 located between the adjacent core materials 51, in four directions of a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction. It can be bent, but it is easier to bend in the vertical and horizontal directions than in the diagonal direction.

以上のように本実施の形態の真空断熱材９０は、複数の略正八角形の芯材５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線を形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部９３が設けられているので、４方向に真空断熱材９０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 90 of the present embodiment is formed by covering a plurality of substantially regular octagonal core materials 51 with the gas barrier coating material 52 and depressurizing the inside of the coating material 52. Numerals 51 are arranged at predetermined intervals from each other in a lattice so as to form a fold curve in four directions at a portion located between adjacent core materials, and each of the plurality of core materials 51 is placed in an independent space. Since the heat-welded portion 93 of the outer cover material 52 is provided around the core member 51 so as to be located, the vacuum heat insulating material 90 can be bent in four directions, and therefore, the object to which the conventional vacuum heat insulating material is applied. There are few restrictions on the shape of objects, and it is widely used.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

また、隣接する芯材５１の間で、且つ、熱溶着部９３を間に挟んで芯材５１の外周側に、外被材５２が熱溶着されていない非熱溶着部９５を有するので、熱溶着部９３をパターン化しやすいので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   In addition, since the non-heat-welded portion 95 to which the outer cover material 52 is not heat-welded is provided between the adjacent core materials 51 and on the outer peripheral side of the core material 51 with the heat-welded portion 93 interposed therebetween. Since the welding portion 93 is easily patterned, the size and the size of the welding device can be reduced and the welding operation can be easily performed.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

また、本実施の形態の真空断熱材９０は、隣接する芯材５１との間に所定幅の熱溶着部９３が残るように、外被材５２に孔９４を設けたものであり、真空断熱材９０における断熱性能の低下の影響が少ない部分に孔９４があいているので、真空断熱材９０の一方の面から他方の面に、空気や水を排出する必要がある用途や、適用箇所の都合上、物（例えば、管などの部品）を通す必要がある用途や、真空断熱材９０と発泡断熱材と組み合わせた複合断熱材において、製造の都合上、真空断熱材の一方の面から他方の面に発泡断熱材を流す必要がある所にも適用できる。例えば、この真空断熱材９０を衣類に設けて防寒具とした場合は、この孔９４から、汗の蒸気を外部に放出することができ、防寒具の内側が蒸れず快適である。   Further, the vacuum heat insulating material 90 of the present embodiment is provided with a hole 94 in the outer cover material 52 so that a heat-welded portion 93 having a predetermined width remains between the core material 51 and the adjacent core material 51. Since the hole 94 is formed in a portion of the material 90 where the influence of the deterioration of the heat insulation performance is small, the use of the vacuum heat insulating material 90 from one surface to the other surface where it is necessary to discharge air or water, or the application location In applications where it is necessary to pass an object (for example, a part such as a tube) for convenience, or in a composite insulation material in which a vacuum insulation material 90 and a foam insulation material are combined, for convenience of manufacture, one side of the vacuum insulation material to the other side. It can also be applied to places where foam insulation needs to flow on the surface. For example, when the vacuum heat insulating material 90 is provided on clothing to provide a cold protection device, sweat vapor can be released to the outside from the holes 94, and the inside of the cold protection device is comfortable without stuffiness.

なお、本実施の形態の真空断熱材９０は、縦横方向にそれぞれ４つの芯材５１が並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 90 of the present embodiment has four core members 51 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

また、芯材５１の周囲に設けられる外被材５２の熱溶着部９３は、芯材５１のそれぞれに対して独立して設けられる、芯材５１を囲む略正八角形のドーナツ形であっても構わない。   Further, the heat-welded portion 93 of the jacket material 52 provided around the core material 51 may be a substantially regular octagonal donut shape which surrounds the core material 51 and is provided independently for each of the core materials 51. I do not care.

また、孔９４の縁は、外被材５２の密封性向上のため、熱溶着されていることが好ましく、孔９４を取付け等に利用する場合は、孔９４の縁から外被材５２が破損しないように、孔９４の縁を補強することが好ましい。   It is preferable that the edge of the hole 94 is heat-sealed to improve the sealing property of the outer cover material 52. When the hole 94 is used for mounting or the like, the outer cover material 52 is damaged from the edge of the hole 94. It is preferable to reinforce the edge of the hole 94 so as not to cause the problem.

また、真空断熱材９０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部９３または非熱溶着部９５の部分を切断することが好ましい。   Further, when the vacuum heat insulating material 90 is applied, the heat insulating material 52 can be cut into a required size and shape. It is preferable to cut off the welded portion 93 or the non-thermally welded portion 95.

（実施の形態１０）
以下、本発明の実施の形態１０の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 10)
Hereinafter, a vacuum heat insulating material according to a tenth embodiment of the present invention will be described, but the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図２１は本発明の真空断熱材の実施の形態１０を示す平面図、図２２は図２１のＧ−Ｇ線断面図である。   FIG. 21 is a plan view showing Embodiment 10 of the vacuum heat insulating material of the present invention, and FIG. 22 is a sectional view taken along line GG of FIG.

本実施の形態の真空断熱材１００は、１６個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１を熱可塑性樹脂からなるシート部材１０４の片面に接着固定した状態でガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線を形成できるように、格子状に、縦（横）方向に隣接する芯材５１と横（縦）の辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部１０３が設けられ、熱溶着部１０３では外被材５２とシート部材１０４が熱溶着されているものである。   The vacuum heat insulating material 100 according to the present embodiment is a state in which 16 core members 51 each having a thickness of about 5 mm made of glass fibers molded into a substantially regular octagon are adhered and fixed to one surface of a sheet member 104 made of a thermoplastic resin. The interior of the jacket 52 is covered with a gas-barrier material 52, and the interior of the jacket 52 is decompressed. In such a manner that a core material 51 adjacent in the vertical (horizontal) direction and the horizontal (vertical) side face each other in a grid pattern so that a folding curve in four directions of vertical, horizontal, and oblique directions can be formed in parallel with each side. And a predetermined interval slightly larger than the length of one side of the substantially octagonal core material 51 plus four times the thickness of the outer cover material 52 covering the core material 51, The circumference of the core material 51 is set so that each of the 16 core materials 51 is located in an independent space. The heat seal parts 103 of the enveloping member 52 are provided, in which the enveloping member 52 and sheet member 104 in the heat welded portion 103 is heat-welded.

本実施の形態の真空断熱材１００は、隣接する芯材５１の間に位置する外被材５２の熱溶着部１０３で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、縦と横方向は、斜め方向より曲げやすい。   The vacuum heat insulating material 100 of the present embodiment is a heat-welded portion 103 of a jacket material 52 located between adjacent core materials 51, and is formed in a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction. Although it can be bent in four directions, it is easier to bend in the vertical and horizontal directions than in the diagonal directions.

以上のように本実施の形態の真空断熱材１００は、複数の略正八角形の芯材５１を熱可塑性樹脂からなるシート部材１０４の片面に接着固定した状態でガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線を形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部１０３が設けられているので、４方向に真空断熱材１００を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 100 of the present embodiment is covered with the gas-barrier covering material 52 in a state where the plurality of substantially regular octagonal core materials 51 are bonded and fixed to one surface of the sheet member 104 made of a thermoplastic resin. The plurality of cores 51 are arranged at a predetermined distance from each other in a lattice so as to form a bent curve in four directions at a portion located between adjacent cores. Since the heat-welded portion 103 of the jacket material 52 is provided around the core material 51 so that each of the plurality of core materials 51 is located in an independent space, the vacuum heat insulating material 100 is moved in four directions. It can be bent, so that there are fewer restrictions on the shape of the object to be applied than conventional vacuum insulation materials, and the application is wide.

また、本実施の形態の真空断熱材１００は、複数の芯材５１をシート部材１０４の片面の所定位置に接着固定した後、その複数の芯材５１を接着固定したシート部材１０４を、一端が開口した袋状に形成された外被材５２の中に挿入し、減圧下で外被材５２の開口部を封止することにより製造できるので、複数の芯材５１を所定位置に固定しやすく真空断熱材１００の製造が容易である。   Further, the vacuum heat insulating material 100 according to the present embodiment is configured such that, after a plurality of core members 51 are bonded and fixed to a predetermined position on one surface of the sheet member 104, the sheet member 104 to which the plurality of core members 51 are bonded and fixed has one end. It can be manufactured by inserting it into the jacket material 52 formed in an open bag shape and sealing the opening of the jacket material 52 under reduced pressure, so that it is easy to fix the plurality of core members 51 at predetermined positions. The manufacture of the vacuum heat insulating material 100 is easy.

また、シート部材１０４が熱可塑性樹脂からなるので、外被材５２における隣接する芯材５１の間の部分を熱溶着した時に、外被材５２と一緒にシート部材１０４を熱溶着することができるので、複数の芯材５１を所定位置に固定するためにシート部材１０４を用いた場合であっても、複数の芯材５１のそれぞれを独立した空間内に位置させることができる。   Further, since the sheet member 104 is made of a thermoplastic resin, the sheet member 104 can be heat-welded together with the outer cover material 52 when a portion between the adjacent core members 51 in the outer cover material 52 is heat-welded. Therefore, even when the sheet member 104 is used to fix the plurality of core members 51 at predetermined positions, each of the plurality of core members 51 can be located in an independent space.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

本実施の形態では、真空断熱材１００の外周部に位置する外被材５２と隣接する芯材５１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部１０３の幅が広く、そのため熱溶着部１０３を通して各芯材５１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located at the outer peripheral portion of the vacuum heat insulating material 100 and the portion of the outer covering material 52 located between the adjacent core materials 51 are all thermally welded, Is wide, so that the possibility that the degree of vacuum in the space in which each core material 51 enters through the heat welding portion 103 is reduced can be considerably reduced.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

なお、本実施の形態の真空断熱材１００は、縦横方向にそれぞれ４つの芯材５１が並ぶものであったが、これに限定するものではない。   In addition, the vacuum heat insulating material 100 of the present embodiment has four core members 51 arranged in each of the vertical and horizontal directions, but the present invention is not limited to this.

また、芯材５１をシート部材１１４の両面に対向するように接着固定しても構わない。   Further, the core member 51 may be bonded and fixed so as to face both surfaces of the sheet member 114.

また、真空断熱材１００の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１０３の部分を切断することが好ましい。   When the vacuum heat insulating material 100 is applied, the heat insulating material 52 can be cut into a required size and shape, but when cutting, the heat of the outer cover material 52 is minimized in order to minimize a decrease in heat insulating performance. It is preferable to cut off the welded portion 103.

（実施の形態１１）
以下、本発明の実施の形態１１の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 11)
Hereinafter, a vacuum heat insulating material according to an eleventh embodiment of the present invention will be described. The same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図２３は本発明の真空断熱材の実施の形態１１を示す平面図、図２４は図２３のＨ−Ｈ線断面図である。   FIG. 23 is a plan view showing Embodiment 11 of the vacuum heat insulating material of the present invention, and FIG. 24 is a sectional view taken along line HH of FIG.

本実施の形態の真空断熱材１１０は、１６個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１を熱可塑性樹脂からなるシート部材１１４の片面に接着固定した状態でガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線を形成できるように、格子状に、縦（横）方向に隣接する芯材５１と横（縦）の辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部１１３が設けられ、隣接する芯材５１の間で、且つ、熱溶着部１１３を間に挟んで芯材５１の外周側に外被材５２が熱溶着されていない非熱溶着部１１５を有するたものである。   The vacuum heat insulating material 110 of the present embodiment is a state in which 16 core members 51 each having a thickness of about 5 mm made of glass fibers molded into a substantially regular octagon are adhered and fixed to one surface of a sheet member 114 made of a thermoplastic resin. The interior of the jacket 52 is covered with a gas-barrier material 52, and the interior of the jacket 52 is decompressed. In such a manner that a core material 51 adjacent in the vertical (horizontal) direction and the horizontal (vertical) side face each other in a grid pattern so that a folding curve in four directions of vertical, horizontal, and oblique directions can be formed in parallel with each side. And a predetermined interval slightly larger than the length of one side of the substantially octagonal core material 51 plus four times the thickness of the outer cover material 52 covering the core material 51, The circumference of the core material 51 is set so that each of the 16 core materials 51 is located in an independent space. Is provided with a heat-welded portion 113 of the jacket material 52, and the jacket material 52 is heat-welded between the adjacent core members 51 and on the outer peripheral side of the core member 51 with the heat weld portion 113 interposed therebetween. The non-heat-welded portion 115 is not provided.

本実施の形態の真空断熱材１１０は、隣接する芯材５１の間に位置する外被材５２の部分で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、縦と横方向は、斜め方向より曲げやすい。   The vacuum heat insulating material 110 of the present embodiment is a portion of the jacket material 52 located between the adjacent core materials 51, and is provided in four directions of a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction. It can be bent, but it is easier to bend in the vertical and horizontal directions than in the diagonal direction.

以上のように本実施の形態の真空断熱材１１０は、複数の略正八角形の芯材５１を熱可塑性樹脂からなるシート部材１１４の片面に接着固定した状態でガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線を形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部１１３が設けられているので、４方向に真空断熱材１１０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 110 of the present embodiment is covered with the gas-barrier covering material 52 in a state where the plurality of substantially regular octagonal core materials 51 are adhered and fixed to one surface of the sheet member 114 made of thermoplastic resin. The plurality of cores 51 are arranged at a predetermined distance from each other in a lattice so as to form a bent curve in four directions at a portion located between adjacent cores. Since the heat-welded portions 113 of the jacket material 52 are provided around the core material 51 so that each of the plurality of core materials 51 is located in an independent space, the vacuum heat insulating material 110 is moved in four directions. It can be bent, so that there are fewer restrictions on the shape of the object to be applied than conventional vacuum insulation materials, and the application is wide.

また、本実施の形態の真空断熱材１１０は、複数の芯材５１をシート部材１１４の片面の所定位置に接着固定した後、その複数の芯材５１を接着固定したシート部材１１４を、一端が開口した袋状に形成された外被材５２の中に挿入し、減圧下で外被材５２の開口部を封止することにより製造できるので、複数の芯材５１を所定位置に固定しやすく真空断熱材１１０の製造が容易である。   Further, the vacuum heat insulating material 110 of the present embodiment is configured such that, after a plurality of core members 51 are bonded and fixed to a predetermined position on one surface of the sheet member 114, the sheet member 114 to which the plurality of core members 51 are bonded and fixed has one end. It can be manufactured by inserting it into the jacket material 52 formed in an open bag shape and sealing the opening of the jacket material 52 under reduced pressure, so that it is easy to fix the plurality of core members 51 at predetermined positions. Manufacture of the vacuum heat insulating material 110 is easy.

また、シート部材１１４が熱可塑性樹脂からなるので、外被材５２における隣接する芯材５１の間の部分を熱溶着した時に、外被材５２と一緒にシート部材１１４を熱溶着することができるので、複数の芯材５１を所定位置に固定するためにシート部材１１４を用いた場合であっても、複数の芯材５１のそれぞれを独立した空間内に位置させることができる。   Further, since the sheet member 114 is made of a thermoplastic resin, the sheet member 114 can be heat-welded together with the outer cover material 52 when the portion between the adjacent core members 51 in the outer cover material 52 is heat-welded. Therefore, even when the sheet member 114 is used to fix the plurality of core members 51 at predetermined positions, each of the plurality of core members 51 can be located in an independent space.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

また、隣接する芯材５１の間で、且つ、熱溶着部１１３を間に挟んで芯材５１の外周側に、外被材５２が熱溶着されていない非熱溶着部１１５を有するので、熱溶着部１１３をパターン化しやすいので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   In addition, since the non-heat-welded portion 115 to which the outer cover material 52 is not heat-welded is provided between the adjacent core materials 51 and on the outer peripheral side of the core material 51 with the heat-welding portion 113 interposed therebetween. Since the welding portion 113 is easily patterned, the welding device can be reduced in size and simplified, and the welding operation can be easily performed.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

なお、本実施の形態の真空断熱材１１０は、縦横方向にそれぞれ４つの芯材５１が並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 110 of the present embodiment has four core members 51 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

また、芯材５１の周囲に設けられる外被材５２の熱溶着部１１３は、芯材５１のそれぞれに対して独立して設けられる、芯材５１を囲む略正八角形のドーナツ形であっても構わない。   Further, the heat-welded portion 113 of the jacket material 52 provided around the core material 51 may be a substantially regular octagonal donut shape surrounding the core material 51 provided independently of each of the core materials 51. I do not care.

また、芯材５１をシート部材１１４の両面に対向するように接着固定しても構わない。   Further, the core member 51 may be bonded and fixed so as to face both surfaces of the sheet member 114.

また、真空断熱材１１０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１１３または非熱溶着部１１５の部分を切断することが好ましい。   When the vacuum heat insulating material 110 is applied, the heat insulating material 52 can be cut into a required size and shape, but when cutting, the heat of the outer cover material 52 is minimized in order to minimize a decrease in heat insulating performance. It is preferable to cut off the welded portion 113 or the non-thermally welded portion 115.

（実施の形態１２）
以下、本発明の実施の形態１２の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 12)
Hereinafter, a vacuum heat insulating material according to a twelfth embodiment of the present invention will be described. However, the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図２５は本発明の真空断熱材の実施の形態１２を示す平面図、図２６は図２５のＩ−Ｉ線断面図である。   FIG. 25 is a plan view showing a twelfth embodiment of the vacuum heat insulating material of the present invention, and FIG. 26 is a sectional view taken along line II of FIG.

本実施の形態の真空断熱材１２０は、１６個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１を熱可塑性樹脂からなるシート部材１２４の片面に接着固定した状態でガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線を形成できるように、格子状に、縦（横）方向に隣接する芯材５１と横（縦）の辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部１２３が設けられ、さらに、隣接する芯材５１との間に所定幅の熱溶着部１２３が残るように外被材５２に円形の孔１２５を設けたものである。   The vacuum heat insulating material 120 of the present embodiment is a state in which 16 core materials 51 each having a thickness of about 5 mm made of glass fibers molded into a substantially regular octagon are adhered and fixed to one surface of a sheet member 124 made of a thermoplastic resin. The interior of the jacket 52 is covered with a gas-barrier material 52, and the interior of the jacket 52 is decompressed. In such a manner that a core material 51 adjacent in the vertical (horizontal) direction and the horizontal (vertical) side face each other in a grid pattern so that a folding curve in four directions of vertical, horizontal, and oblique directions can be formed in parallel with each side. And a predetermined interval slightly larger than the length of one side of the substantially octagonal core material 51 plus four times the thickness of the outer cover material 52 covering the core material 51, The circumference of the core material 51 is set so that each of the 16 core materials 51 is located in an independent space. Is provided with a heat-welded portion 123 of the jacket material 52, and a circular hole 125 is provided in the jacket material 52 so that the heat-welded portion 123 of a predetermined width remains between the core material 51 and the adjacent core material 51. is there.

本実施の形態の真空断熱材１２０は、隣接する芯材５１の間に位置する外被材５２の熱溶着部１２３で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、縦と横方向は、斜め方向より曲げやすい。   The vacuum heat insulating material 120 of the present embodiment is a heat-welded portion 123 of the outer cover material 52 located between the adjacent core materials 51, and is formed in a vertical direction, a horizontal direction, and a 45 ° oblique direction with respect to the vertical or horizontal direction. Although it can be bent in four directions, it is easier to bend in the vertical and horizontal directions than in the diagonal directions.

以上のように本実施の形態の真空断熱材１２０は、複数の略正八角形の芯材５１を熱可塑性樹脂からなるシート部材１２４の片面に接着固定した状態でガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線を形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部１２３が設けられているので、４方向に真空断熱材１２０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 120 according to the present embodiment is covered with the gas-barrier covering material 52 in a state where the plurality of substantially regular octagonal core materials 51 are bonded and fixed to one surface of the sheet member 124 made of a thermoplastic resin. The plurality of cores 51 are arranged at a predetermined distance from each other in a lattice so as to form a bent curve in four directions at a portion located between adjacent cores. Since the heat-welded portion 123 of the jacket material 52 is provided around the core material 51 so that each of the plurality of core materials 51 is located in an independent space, the vacuum heat insulating material 120 is provided in four directions. It can be bent, so that there are fewer restrictions on the shape of the object to be applied than conventional vacuum insulation materials, and the application is wide.

また、本実施の形態の真空断熱材１２０は、複数の芯材５１をシート部材１２４の片面の所定位置に接着固定した後、その複数の芯材５１を接着固定したシート部材１２４を、一端が開口した袋状に形成された外被材５２の中に挿入し、減圧下で外被材５２の開口部を封止することにより製造できるので、複数の芯材５１を所定位置に固定しやすく真空断熱材１２０の製造が容易である。   Further, the vacuum heat insulating material 120 of the present embodiment is configured such that, after a plurality of core members 51 are bonded and fixed to a predetermined position on one surface of the sheet member 124, the sheet member 124 to which the plurality of core members 51 are bonded and fixed has one end. It can be manufactured by inserting it into the jacket material 52 formed in an open bag shape and sealing the opening of the jacket material 52 under reduced pressure, so that it is easy to fix the plurality of core members 51 at predetermined positions. The vacuum heat insulating material 120 can be easily manufactured.

また、シート部材１２４が熱可塑性樹脂からなるので、外被材５２における隣接する芯材５１の間の部分を熱溶着した時に、外被材５２と一緒にシート部材１２４を熱溶着することができるので、複数の芯材５１を所定位置に固定するためにシート部材１２４を用いた場合であっても、複数の芯材５１のそれぞれを独立した空間内に位置させることができる。   Further, since the sheet member 124 is made of a thermoplastic resin, when the portion between the adjacent core members 51 in the jacket material 52 is thermally welded, the sheet member 124 can be thermally welded together with the jacket material 52. Therefore, even when the sheet member 124 is used to fix the plurality of core members 51 at predetermined positions, each of the plurality of core members 51 can be located in an independent space.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

本実施の形態では、真空断熱材１２０の外周部に位置する外被材５２と隣接する芯材５１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部１２３の幅が広く、そのため熱溶着部１２３を通して各芯材５１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located on the outer peripheral portion of the vacuum heat insulating material 120 and the portion of the outer covering material 52 located between the adjacent core members 51 are all heat-welded, the heat-welded portions 123 Is wide, so that the possibility that the degree of vacuum in the space in which each core material 51 enters through the heat welding portion 123 can be considerably reduced.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

また、本実施の形態の真空断熱材１２０は、隣接する芯材５１との間に所定幅の熱溶着部１２３が残るように、外被材５２に孔１２５を設けたものであり、真空断熱材１２０における断熱性能の低下の影響が少ない部分に孔１２５があいているので、真空断熱材１２０の一方の面から他方の面に、空気や水を排出する必要がある用途や、適用箇所の都合上、物（例えば、管などの部品）を通す必要がある用途や、真空断熱材１２０と発泡断熱材と組み合わせた複合断熱材において、製造の都合上、真空断熱材の一方の面から他方の面に、発泡断熱材を流す必要がある所にも適用できる。例えば、この真空断熱材１２０を衣類に設けて防寒具とした場合は、この孔１２５から、汗の蒸気を外部に放出することができ、防寒具の内側が蒸れず快適である。   Further, the vacuum heat insulating material 120 according to the present embodiment is provided with a hole 125 in the outer cover material 52 so that a heat-welded portion 123 having a predetermined width is left between the adjacent core material 51 and the vacuum heat insulating material 120. Since the hole 125 is formed in a portion of the material 120 where the influence of the deterioration of the heat insulation performance is small, the air or water needs to be discharged from one surface of the vacuum heat insulating material 120 to the other surface, In applications where it is necessary to pass an object (for example, a part such as a pipe) for convenience, or in a composite insulation material in which the vacuum insulation material 120 and foam insulation material are combined, for convenience of manufacture, one side of the vacuum insulation material to the other side may be used. It can also be applied to places where it is necessary to flow foam insulation on the surface. For example, when the vacuum heat insulating material 120 is provided on clothing to provide cold protection, sweat vapor can be released to the outside through the holes 125, and the inside of the cold protection is comfortable without stuffiness.

なお、本実施の形態の真空断熱材１２０は、縦横方向にそれぞれ４つの芯材５１が並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 120 of the present embodiment has four core members 51 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

また、真空断熱材１２０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１２３の部分を切断することが好ましい。   Further, when the vacuum heat insulating material 120 is applied, it can be cut into a required size and shape, but at the time of cutting, the heat of the outer cover material 52 is minimized in order to minimize a decrease in heat insulating performance. It is preferable to cut off the welded portion 123.

（実施の形態１３）
以下、本発明の実施の形態１３の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 13)
Hereinafter, a vacuum heat insulating material according to a thirteenth embodiment of the present invention will be described. The same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図２７は本発明の真空断熱材の実施の形態１３を示す平面図、図２８は図２７のＪ−Ｊ線断面図である。   FIG. 27 is a plan view showing Embodiment 13 of the vacuum heat insulating material of the present invention, and FIG. 28 is a sectional view taken along line JJ of FIG.

本実施の形態の真空断熱材１３０は、１６個の略正八角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材５１を熱可塑性樹脂からなるシート部材１３４の片面に接着固定した状態でガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材５１は、隣接する芯材５１の間に位置する部分で、芯材５１の八角形の各辺に平行に、縦、横、斜めの４方向の折曲線を形成できるように、格子状に、縦（横）方向に隣接する芯材５１と横（縦）の辺が対向するように、且つ、互いに略八角形の芯材５１の一辺の長さに芯材５１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部１３３が設けられ、且つ、隣接する芯材５１の間で、且つ、熱溶着部１３３を間に挟んで芯材５１の外周側に、外被材５２が熱溶着されていない非熱溶着部１３６を有し、且つ、隣接する芯材５１との間に所定幅の熱溶着部１３３が残るように外被材５２の非熱溶着部１３６に孔１３５を設けたものである。   The vacuum heat insulating material 130 of the present embodiment is a state in which 16 core members 51 each having a thickness of about 5 mm made of glass fibers molded into a substantially regular octagon are adhered and fixed to one surface of a sheet member 134 made of a thermoplastic resin. The interior of the jacket 52 is covered with a gas-barrier material 52, and the interior of the jacket 52 is decompressed. In such a manner that a core material 51 adjacent in the vertical (horizontal) direction and the horizontal (vertical) side face each other in a grid pattern so that a folding curve in four directions of vertical, horizontal, and oblique directions can be formed in parallel with each side. And a predetermined interval slightly larger than the length of one side of the substantially octagonal core material 51 plus four times the thickness of the outer cover material 52 covering the core material 51, The circumference of the core material 51 is set so that each of the 16 core materials 51 is located in an independent space. Is provided with a heat-welded portion 133 of the jacket material 52, and the jacket material 52 is heated between adjacent core members 51 and on the outer peripheral side of the core member 51 with the heat-welded portion 133 interposed therebetween. A hole 135 is provided in the non-heat-welded portion 136 of the jacket material 52 so as to have a non-heat-welded portion 136 that is not welded and to leave a heat-welded portion 133 having a predetermined width between the adjacent core material 51. It is something.

本実施の形態の真空断熱材１３０は、隣接する芯材５１の間に位置する外被材５２の部分で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、縦と横方向は、斜め方向より曲げやすい。   The vacuum heat insulating material 130 of the present embodiment is a portion of the outer cover material 52 located between the adjacent core materials 51, in four directions of a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction. It can be bent, but it is easier to bend in the vertical and horizontal directions than in the diagonal direction.

以上のように本実施の形態の真空断熱材１３０は、複数の略正八角形の芯材５１を熱可塑性樹脂からなるシート部材１３４の片面に接着固定した状態でガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材５１は、隣接する芯材の間に位置する部分で４方向の折曲線を形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材５１のそれぞれが独立した空間内に位置するように芯材５１の周囲に外被材５２の熱溶着部１３３が設けられているので、４方向に真空断熱材１３０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 130 of the present embodiment is covered with the gas-barrier outer material 52 in a state where the plurality of substantially regular octagonal core materials 51 are adhered and fixed to one surface of the sheet member 134 made of a thermoplastic resin. The plurality of cores 51 are arranged at a predetermined distance from each other in a lattice so as to form a bent curve in four directions at a portion located between adjacent cores. Since the heat-welded portions 133 of the jacket material 52 are provided around the core material 51 so that each of the plurality of core materials 51 is located in an independent space, the vacuum heat insulating material 130 can be moved in four directions. It can be bent, so that there are fewer restrictions on the shape of the object to be applied than conventional vacuum insulation materials, and the application is wide.

また、本実施の形態の真空断熱材１３０は、複数の芯材５１をシート部材１３４の片面の所定位置に接着固定した後、その複数の芯材５１を接着固定したシート部材１３４を、一端が開口した袋状に形成された外被材５２の中に挿入し、減圧下で外被材５２の開口部を封止することにより製造できるので、複数の芯材５１を所定位置に固定しやすく真空断熱材１３０の製造が容易である。   Further, the vacuum heat insulating material 130 of the present embodiment is configured such that, after a plurality of core members 51 are bonded and fixed to a predetermined position on one surface of the sheet member 134, the sheet member 134 to which the plurality of core members 51 are bonded and fixed has one end. It can be manufactured by inserting it into the jacket material 52 formed in an open bag shape and sealing the opening of the jacket material 52 under reduced pressure, so that it is easy to fix the plurality of core members 51 at predetermined positions. The manufacture of the vacuum heat insulating material 130 is easy.

また、シート部材１３４が熱可塑性樹脂からなるので、外被材５２における隣接する芯材５１の間の部分を熱溶着した時に、外被材５２と一緒にシート部材１３４を熱溶着することができるので、複数の芯材５１を所定位置に固定するためにシート部材１３４を用いた場合であっても、複数の芯材５１のそれぞれを独立した空間内に位置させることができる。   Further, since the sheet member 134 is made of a thermoplastic resin, the sheet member 134 can be thermally welded together with the outer cover material 52 when a portion between the adjacent core members 51 in the outer cover material 52 is heat-welded. Therefore, even when the sheet member 134 is used to fix the plurality of core members 51 at predetermined positions, each of the plurality of core members 51 can be located in an independent space.

また、特定の芯材５１が入った空間の真空度が低下することが起きても、他の芯材５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 51 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 51. Can be suppressed.

また、隣接する芯材５１の間で、且つ、熱溶着部１３３を間に挟んで芯材５１の外周側に、外被材５２が熱溶着されていない非熱溶着部１３６を有するので、熱溶着部１３３をパターン化しやすいので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   Further, since the non-heat-welded portion 136 to which the jacket material 52 is not heat-welded is provided between the adjacent core materials 51 and on the outer peripheral side of the core material 51 with the heat-welded portion 133 interposed therebetween, Since the welding portion 133 is easily patterned, the size and the size of the welding device can be reduced and the welding operation can be easily performed.

また、芯材５１の形状を、略正八角形にしたので、４方向に折り曲げ可能な真空断熱材としては、芯材５１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 51 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 51 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

また、本実施の形態の真空断熱材１３０は、隣接する芯材５１との間に所定幅の熱溶着部１３３が残るように、外被材５２に孔１３５を設けたものであり、真空断熱材１３０における断熱性能の低下の影響が少ない部分に孔１３５があいているので、真空断熱材１３０の一方の面から他方の面に、空気や水を排出する必要がある用途や、適用箇所の都合上、物（例えば、管などの部品）を通す必要がある用途や、真空断熱材１３０と発泡断熱材と組み合わせた複合断熱材において、製造の都合上、真空断熱材の一方の面から他方の面に、発泡断熱材を流す必要がある所にも適用できる。例えば、この真空断熱材１３０を衣類に設けて防寒具とした場合は、この孔１３５から、汗の蒸気を外部に放出することができ、防寒具の内側が蒸れず快適である。   Further, the vacuum heat insulating material 130 of the present embodiment is provided with a hole 135 in the outer cover material 52 so that a heat-welded portion 133 having a predetermined width remains between the vacuum heat insulating material 130 and the adjacent core material 51. Since the hole 135 is provided in a portion of the material 130 where the influence of the deterioration of the heat insulating performance is small, the air or water needs to be discharged from one surface of the vacuum heat insulating material 130 to the other surface, In applications where it is necessary to pass an object (for example, a component such as a tube) for convenience, or in a composite insulation material in which the vacuum insulation material 130 and foam insulation material are combined, for convenience of manufacture, one side of the vacuum insulation material to the other side may be used. It can also be applied to places where it is necessary to flow foam insulation on the surface. For example, when the vacuum heat insulating material 130 is provided on clothing to provide a cold protection device, sweat vapor can be released to the outside through the holes 135, and the inside of the cold protection device is comfortable without stuffiness.

なお、本実施の形態の真空断熱材１３０は、縦横方向にそれぞれ４つの芯材５１が並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 130 of the present embodiment has four core members 51 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

また、芯材５１の周囲に設けられる外被材５２の熱溶着部１３３は、芯材５１のそれぞれに対して独立して設けられる、芯材５１を囲む略正八角形のドーナツ形であっても構わない。   In addition, the heat-welded portion 133 of the jacket material 52 provided around the core material 51 may have a substantially regular octagonal donut shape that surrounds the core material 51 and is provided independently for each of the core materials 51. I do not care.

また、孔１３５の縁は、外被材５２の密封性向上のため、熱溶着されていることが好ましく、孔１３５を取付け等に利用する場合は、孔１３５の縁から外被材５２が破損しないように、孔１３５の縁を補強することが好ましい。   Further, the edge of the hole 135 is preferably heat-sealed to improve the sealing property of the jacket material 52. When the hole 135 is used for mounting or the like, the jacket material 52 is damaged from the edge of the hole 135. It is preferable to reinforce the edge of the hole 135 so that it does not occur.

また、真空断熱材１３０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１３３または非熱溶着部１３６の部分を切断することが好ましい。   Further, when the vacuum heat insulating material 130 is applied, it can be used after being cut into a required size and shape. It is preferable to cut off the welded part 133 or the non-thermally welded part 136.

（実施の形態１４）
以下、本発明の実施の形態１４の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 14)
Hereinafter, a vacuum heat insulating material according to a fourteenth embodiment of the present invention will be described. However, the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図２９は本発明の真空断熱材の実施の形態１４を示す平面図である。   FIG. 29 is a plan view showing Embodiment 14 of the vacuum heat insulating material of the present invention.

本実施の形態の真空断熱材１４０は、１６個の略正六角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材１４１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材１４１は、２つの辺が横方向に平行になるように配置され、隣接する芯材１４１の間に位置する部分で、芯材１４１の六角形の各辺に垂直に、縦と、縦に対して左右６０度の斜めの３方向の折曲線１４０ａ，１４０ｂ，１４０ｃを形成できるように、千鳥状（蜂の巣状）に、隣接する芯材１４１と辺が対向するように、且つ、互いに略六角形の芯材１４１の一辺の長さの約０．８７倍に芯材１４１を覆う外被材５２の厚みの４倍の大きさを加えた大きさより若干大きい所定間隔離して配置されており、この１６個の芯材１４１のそれぞれが独立した空間内に位置するように芯材１４１の周囲に略正六角形のドーナツ状の外被材５２の熱溶着部１４３が設けられているものである。   The vacuum heat insulating material 140 according to the present embodiment covers a core material 141 made of glass fibers molded into approximately 16 regular hexagons and having a thickness of about 5 mm with a gas-barrier outer material 52 and the inside of the outer material 52. The 16 core materials 141 are arranged so that two sides thereof are parallel to each other in the horizontal direction, and are located between the adjacent core materials 141. The adjacent core material 141 and the sides are staggered (honeycomb-shaped) so that the bent lines 140a, 140b, and 140c can be formed in three directions perpendicular to the side and vertically and horizontally at 60 degrees to the vertical. It is slightly larger than the size obtained by adding the size of the outer covering material 52 covering the core material 141 to approximately 0.87 times the length of one side of the substantially hexagonal core material 141 so as to face each other and four times the thickness thereof. The 16 cores 141 are spaced apart from each other by a predetermined distance. Les is what heat seal parts 143 of substantially regular hexagonal donut-shaped enveloping member 52 around the core 141 so as to be positioned in a separate space is provided.

本実施の形態の真空断熱材１４０は、隣接する芯材１４１の間に位置する外被材５２の熱溶着部１４３で、縦方向と、縦に対して左右６０度の斜め方向の３方向に曲げることができる。   The vacuum heat insulating material 140 of the present embodiment is formed by heat-welding portions 143 of the outer cover material 52 located between the adjacent core materials 141 in three directions of a vertical direction and an oblique direction of 60 degrees left and right with respect to the vertical. Can be bent.

以上のように本実施の形態の真空断熱材１４０は、複数の略正六角形の芯材１４１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材１４１は、隣接する芯材１４１の間に位置する部分で３方向の折曲線１４０ａ，１４０ｂ，１４０ｃを形成できるように千鳥状に互いに所定間隔離して配置されており、複数の芯材１４１のそれぞれが独立した空間内に位置するように芯材１４１の周囲に略正六角形のドーナツ状の外被材５２の熱溶着部１４３が設けられているので、３方向に真空断熱材１４０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 140 of the present embodiment is formed by covering the plurality of substantially regular hexagonal core materials 141 with the gas barrier material 52 and depressurizing the inside of the outer material 52, The plurality of cores 141 are arranged in a zigzag manner and are separated from each other by a predetermined distance so as to form fold curves 140a, 140b, and 140c in three directions at portions located between the adjacent cores 141. Is provided around the core 141 so as to be located in an independent space, so that the vacuum heat insulating material 140 can be bent in three directions. Therefore, the shape of the object to be applied is smaller than that of the conventional vacuum heat insulating material, and the application is wide.

また、特定の芯材１４１が入った空間の真空度が低下することが起きても、他の芯材１４１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 141 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 141. Can be suppressed.

本実施の形態では、真空断熱材１４０の外周部に位置する外被材５２と隣接する芯材１４１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部１４３の幅が広く、そのため熱溶着部１４３を通して各芯材１４１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located at the outer peripheral portion of the vacuum heat insulating material 140 and the portion of the outer covering material 52 located between the adjacent core materials 141 are all heat-welded, the heat-welded portions 143 are provided. Is wide, so that the possibility that the degree of vacuum in the space in which each core material 141 enters through the heat welding portion 143 is reduced can be considerably reduced.

また、熱溶着部１４３を、略正六角形のドーナツ状パターンの繰り返し、または蜂の巣状にパターン化しやすいので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   In addition, since the heat welding portion 143 is easy to repeat a substantially regular hexagonal donut-shaped pattern or to be patterned into a honeycomb shape, the welding device can be reduced in size and simplified, and the welding operation can be easily performed.

なお、複数の略正六角形の芯材１４１は、熱可塑性樹脂からなるシート部材の片面に接着固定した状態でガスバリア性の外被材５２で覆っても構わない。   The plurality of substantially regular hexagonal core members 141 may be covered with a gas-barrier covering material 52 in a state of being adhered and fixed to one surface of a sheet member made of a thermoplastic resin.

また、真空断熱材１４０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１４３の部分を切断することが好ましい。   In addition, when the vacuum heat insulating material 140 is applied, the heat insulating material can be cut into a required size and shape, but when cutting, the heat of the outer cover material 52 is minimized in order to minimize a decrease in heat insulating performance. It is preferable to cut off the welded portion 143.

（実施の形態１５）
以下、本発明の実施の形態１５の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 15)
Hereinafter, a vacuum heat insulating material according to a fifteenth embodiment of the present invention will be described. The same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図３０は本発明の真空断熱材の実施の形態１５を示す平面図である。   FIG. 30 is a plan view showing Embodiment 15 of the vacuum heat insulating material of the present invention.

本実施の形態の真空断熱材１５０は、１６個の略正六角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材１５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材１５１は、２つの辺が縦方向に平行になるように配置され、隣接する芯材１５１の間に位置する部分で、芯材１５１の六角形の各辺に平行に、縦と、縦に対して左右６０度の斜めの３方向の折曲線１５０ａ，１５０ｂ，１５０ｃを形成できるように、千鳥状に、隣接する芯材１５１と角が対向するように、所定間隔離して配置されており、この１６個の芯材１５１のそれぞれが独立した空間内に位置するように芯材１５１の周囲に外被材５２の熱溶着部１５３が設けられ、さらに、隣接する芯材１５１との間に所定幅の熱溶着部１５３が残るように、隣接する３つの芯材１５１の間に位置する外被材５２の熱溶着部１５３に円形の孔１５４を有するものである。   The vacuum heat insulating material 150 of the present embodiment covers 16 core materials 151 of approximately 5 mm thick made of glass fibers molded into approximately regular hexagons with a gas-barrier outer material 52 and covers the inside of the outer material 52. The sixteen core members 151 are arranged so that two sides thereof are parallel to each other in the vertical direction, and are located between the adjacent core members 151. Each of the sixteen core members 151 has a hexagonal shape. In such a manner that adjacent bents 150a, 150b, and 150c are formed in three directions at an angle of 60 degrees left and right with respect to the vertical, parallel to the side, and the adjacent core 151 is staggered so that the corners face each other. Are arranged at predetermined intervals, and a heat-welded portion 153 of the jacket 52 is provided around the core 151 so that each of the 16 cores 151 is located in an independent space. A heat-welded portion 15 having a predetermined width between adjacent core material 151 As remains, the heat seal parts 153 of the enveloping member 52 positioned between the three adjacent core members 151 and has a circular hole 154.

本実施の形態の真空断熱材１５０は、隣接する芯材１５１の間に位置する外被材５２の熱溶着部１５３で、縦方向と、縦に対して左右６０度の斜め方向の３方向に曲げることができる。   The vacuum heat insulating material 150 according to the present embodiment is a heat-welded portion 153 of the outer cover material 52 located between the adjacent core materials 151, and is formed in three directions of a vertical direction and an oblique direction at 60 degrees left and right with respect to the vertical direction. Can be bent.

以上のように本実施の形態の真空断熱材１５０は、複数の略正六角形の芯材１５１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材１５１は、隣接する芯材１５１の間に位置する部分で３方向の折曲線１５０ａ，１５０ｂ，１５０ｃを形成できるように千鳥状に互いに所定間隔離して配置されており、複数の芯材１５１のそれぞれが独立した空間内に位置するように芯材１５１の周囲に外被材５２の熱溶着部１５３が設けられているので、３方向に真空断熱材１５０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 150 of the present embodiment is formed by covering the plurality of substantially regular hexagonal core materials 151 with the gas barrier coating material 52 and depressurizing the inside of the coating material 52, 151 are staggered and separated from each other by a predetermined distance so as to form fold curves 150a, 150b, and 150c in three directions at portions located between the adjacent cores 151. Are provided around the core 151 so as to be located in an independent space, so that the vacuum heat insulating material 150 can be bent in three directions. The shape of the object to be applied is less restricted than the material, and the application is wide.

また、特定の芯材１５１が入った空間の真空度が低下することが起きても、他の芯材１５１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 151 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 151. Can be suppressed.

本実施の形態では、真空断熱材１５０の外周部に位置する外被材５２と隣接する芯材１５１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部１５３の幅が広く、そのため熱溶着部１５３を通して各芯材１５１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located at the outer peripheral portion of the vacuum heat insulating material 150 and the portion of the outer covering material 52 located between the adjacent core materials 151 are all thermally welded, the thermal welding portion 153 is provided. Is wide, so that the possibility that the degree of vacuum in the space in which each core material 151 enters through the heat-welded portion 153 can be significantly reduced.

本実施の形態は、１６個の芯材１５１を、２つの辺が縦方向に平行になるように配置し、隣接する芯材１５１の間に位置する部分で、芯材１５１の六角形の各辺に平行に、縦と、縦に対して左右６０度の斜めの３方向の折曲線１５０ａ，１５０ｂ，１５０ｃを形成できるように、千鳥状に、隣接する芯材１５１と角が対向するように、所定間隔離して配置したので、実施の形態１４の配置（２つの辺が横方向に平行になるように配置し、隣接する芯材の間に位置する部分で、芯材の六角形の各辺に垂直に、縦と、縦に対して左右６０度の斜めの３方向以上の折曲線を形成できるように、千鳥状に、隣接する芯材と辺が対向するように、所定間隔離して配置）よりも、芯材１５１の間隔を狭くして、芯材１５１の占める面積の割合を大きくできるため、比較的断熱性能を高くできる。   In the present embodiment, 16 core materials 151 are arranged such that two sides thereof are parallel in the vertical direction, and each hexagonal shape of the core materials 151 is located between adjacent core materials 151. In such a manner that adjacent bents 150a, 150b, and 150c are formed in three directions at an angle of 60 degrees left and right with respect to the vertical, parallel to the side, and the adjacent core 151 is staggered so that the corners face each other. The fourteenth embodiment is arranged so as to be spaced apart from each other by a predetermined distance. Therefore, the arrangement of the fourteenth embodiment (where the two sides are arranged so as to be parallel in the horizontal direction, and the hexagonal core material is located between the adjacent core materials) In order to form a fold curve in three directions or more diagonally at 60 degrees left and right with respect to the vertical, vertical and vertical sides, the adjacent core material and the sides are separated by a predetermined distance so as to face the adjacent core material. Arrangement), the interval between the core members 151 can be narrowed, and the ratio of the area occupied by the core members 151 can be increased. Therefore, it can be increased relatively insulation performance.

また、本実施の形態の真空断熱材１５０は、隣接する芯材１５１との間に所定幅の熱溶着部１５３が残るように、外被材５２に孔１５４を設けたものであり、真空断熱材１５０における断熱性能の低下の影響が少ない部分に孔１５４があいているので、真空断熱材１５０の一方の面から他方の面に、空気や水を排出する必要がある用途や、適用箇所の都合上、物（例えば、管などの部品）を通す必要がある用途や、真空断熱材１５０と発泡断熱材と組み合わせた複合断熱材において、製造の都合上、真空断熱材の一方の面から他方の面に発泡断熱材を流す必要がある所にも適用できる。例えば、この真空断熱材１５０を衣類に設けて防寒具とした場合は、この孔１５４から、汗の蒸気を外部に放出することができ、防寒具の内側が蒸れず快適である。   Further, the vacuum heat insulating material 150 of the present embodiment is provided with a hole 154 in the outer cover material 52 such that a heat-welded portion 153 having a predetermined width remains between the core material 151 and the adjacent core material 151. Since the hole 154 is provided in a portion of the material 150 where the influence of the deterioration of the heat insulating performance is small, the air or water needs to be discharged from one surface of the vacuum heat insulating material 150 to the other surface, In applications where it is necessary to pass an object (for example, a part such as a pipe) for convenience, or in a composite insulation material in which the vacuum insulation material 150 and the foam insulation material are combined, for convenience of manufacture, one side of the vacuum insulation material to the other side may be used. It can also be applied to places where foam insulation needs to flow on the surface. For example, when the vacuum heat insulating material 150 is provided on clothing to provide cold protection, sweat vapor can be released to the outside from the holes 154, and the inside of the cold protection is comfortable without stuffiness.

また、本実施の形態は、実施の形態８のように、複数の略正八角形の芯材を格子状に配置し隣接する４つの芯材の間に位置する外被材５２の熱溶着部に孔を設ける場合よりも、孔１５４の数を多くできる。   Further, in the present embodiment, as in the eighth embodiment, a plurality of substantially regular octagonal core materials are arranged in a lattice shape and the heat-welded portion of the jacket material 52 located between four adjacent core materials is provided. The number of holes 154 can be increased as compared with the case where holes are provided.

なお、複数の略正六角形の芯材１５１は、熱可塑性樹脂からなるシート部材の片面に接着固定した状態でガスバリア性の外被材５２で覆っても構わない。   Note that the plurality of substantially regular hexagonal core members 151 may be covered with a gas-barrier covering material 52 in a state of being adhered and fixed to one surface of a sheet member made of a thermoplastic resin.

また、真空断熱材１５０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１５３の部分を切断することが好ましい。   When the vacuum heat insulating material 150 is applied, the heat insulating material can be cut into a required size and shape. It is preferable to cut off the welded portion 153.

（実施の形態１６）
以下、本発明の実施の形態１６の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 16)
Hereinafter, a vacuum heat insulating material according to a sixteenth embodiment of the present invention will be described. However, the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図３１は本発明の真空断熱材の実施の形態１６を示す平面図である。   FIG. 31 is a plan view showing a vacuum heat insulating material according to a sixteenth embodiment of the present invention.

本実施の形態の真空断熱材１６０は、２８個の略正六角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材１６１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この２８個の芯材１６１は、２つの辺が縦方向に平行になるように配置され、隣接する芯材１６１の間に位置する部分で、芯材１６１の六角形の各辺に平行に、縦と、縦に対して左右６０度の斜めの３方向の折曲線１６０ａ，１６０ｂ，１６０ｃを形成できるように、所定間隔離れて隣接する芯材１６１の辺同士が対向するように略正六角形の芯材１６１を６つ環状に並べたものを１組として、各組を千鳥状に、所定間隔離して配置されており、この２８個の芯材１６１のそれぞれが独立した空間内に位置するように芯材１６１の周囲に外被材５２の熱溶着部１６３が設けられ、さらに、隣接する芯材１６１との間に所定幅の熱溶着部１６３が残るように、各組の環状に配置された６つの芯材１６１の間に位置する外被材５２の熱溶着部１６３に円形の孔１６４を有するものである。   The vacuum heat insulating material 160 according to the present embodiment covers a core material 161 having a thickness of about 5 mm made of glass fibers molded into substantially regular hexagons and having a thickness of about 5 mm with a gas-barrier outer material 52 and the inside of the outer material 52. The 28 core materials 161 are arranged so that two sides thereof are parallel to each other in the vertical direction, and are located between adjacent core materials 161, and each hexagonal shape of the core material 161 is The sides of the core material 161 adjacent to each other at a predetermined interval are opposed to each other so that bent lines 160a, 160b, and 160c can be formed in three directions parallel to the sides and in the vertical and oblique directions of 60 degrees to the left and right. A set of six substantially regular hexagonal cores 161 arranged in a ring form a set, and the sets are arranged in a staggered manner and separated by a predetermined distance. Each of the 28 cores 161 is an independent space. Of the jacket material 52 around the core material 161 so as to be located inside A welding portion 163 is provided, and furthermore, a jacket positioned between the six core members 161 arranged in each ring so that a heat welding portion 163 having a predetermined width remains between the core member 161 and the adjacent core member 161. The heat sealing portion 163 of the material 52 has a circular hole 164.

本実施の形態の真空断熱材１６０は、隣接する芯材の間に位置する外被材５２の熱溶着部１６３で、縦方向と、縦に対して左右６０度の斜め方向の３方向に曲げることができる。   The vacuum heat insulating material 160 according to the present embodiment is bent in three directions of a vertical direction and an oblique direction of 60 degrees left and right with respect to the vertical direction at the heat-welded portion 163 of the jacket material 52 located between the adjacent core materials. be able to.

以上のように本実施の形態の真空断熱材１６０は、複数の略正六角形の芯材１６１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材１６１は、隣接する芯材１６１の間に位置する部分で３方向の折曲線１６０ａ，１６０ｂ，１６０ｃを形成できるように環状に配置された６つ一組の芯材１６１（辺同士が対向するように所定間隔離れて横に並ぶ２つ一組の芯材１６１）を千鳥状に互いに所定間隔離して配置されており、複数の芯材１６１のそれぞれが独立した空間内に位置するように芯材１６１の周囲に外被材５２の熱溶着部１６３が設けられているので、３方向に真空断熱材１６０を折り曲げることができ、そのため、従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 160 of the present embodiment is formed by covering the plurality of substantially regular hexagonal core materials 161 with the gas barrier material 52 and depressurizing the inside of the outer material 52, 161 is a set of six core members 161 (in which the sides are opposed to each other) arranged in an annular shape so as to form fold curves 160a, 160b, 160c in three directions at a portion located between adjacent core members 161. A pair of core members 161) arranged side by side at predetermined intervals are arranged in a staggered manner and separated from each other by a predetermined distance, and the core members 161 are arranged such that each of the plurality of core members 161 is located in an independent space. Since the heat-sealed portion 163 of the jacket material 52 is provided around the periphery of the vacuum heat-insulating material 161, the vacuum heat-insulating material 160 can be bent in three directions. There are few and wide use.

また、特定の芯材１６１が入った空間の真空度が低下することが起きても、他の芯材１６１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 161 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 161, and the decrease in heat insulation performance is minimized. Can be suppressed.

本実施の形態では、真空断熱材１６０の外周部に位置する外被材５２と隣接する芯材１６１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部１６３の幅が広く、そのため熱溶着部１６３を通して各芯材１６１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located at the outer peripheral portion of the vacuum heat insulating material 160 and the portion of the outer covering material 52 located between the adjacent core materials 161 are all heat-welded, the heat-welded portions 163 are provided. Is wide, so that the possibility that the degree of vacuum in the space in which each core material 161 enters through the heat welding portion 163 is reduced can be considerably reduced.

本実施の形態では、複数の芯材１６１を、２つの辺が縦方向に平行になる向きで配置し、隣接する芯材１６１の間に位置する部分で、芯材１６１の六角形の各辺に平行に、縦と、縦に対して左右６０度の斜めの３方向の折曲線１６０ａ，１６０ｂ，１６０ｃを形成できるように、所定間隔離れて隣接する芯材１６１の辺同士が対向するように略正六角形の芯材１６１を６つ環状に並べたものを１組として、各組を千鳥状に、所定間隔離して配置したので、芯材１６１の占める面積の割合を大きくでき、比較的断熱性能を高くできる。   In the present embodiment, a plurality of core members 161 are arranged in a direction in which two sides are parallel in the vertical direction, and each side of the hexagon of the core member 161 is located between the adjacent core members 161. In order to form bent curves 160a, 160b, and 160c in three directions in parallel with the vertical and the left and right at 60 degrees with respect to the vertical, the sides of the core material 161 adjacent to each other at a predetermined interval are opposed to each other. Six pairs of substantially regular hexagonal core members 161 are arranged in a ring, and each group is arranged in a staggered manner and separated by a predetermined distance. Performance can be improved.

また、本実施の形態の真空断熱材１６０は、隣接する芯材１６１との間に所定幅の熱溶着部１６３が残るように、外被材５２に孔１６４を設けたものであり、真空断熱材１６０における断熱性能の低下の影響が少ない部分に孔１６４があいているので、真空断熱材１６０の一方の面から他方の面に、空気や水を排出する必要がある用途や、適用箇所の都合上、物（例えば、管などの部品）を通す必要がある用途や、真空断熱材１６０と発泡断熱材と組み合わせた複合断熱材において、製造の都合上、真空断熱材の一方の面から他方の面に発泡断熱材を流す必要がある所にも適用できる。例えば、この真空断熱材１６０を衣類に設けて防寒具とした場合は、この孔１６４から、汗の蒸気を外部に放出することができ、防寒具の内側が蒸れず快適である。   Further, the vacuum heat insulating material 160 of the present embodiment is provided with a hole 164 in the outer cover material 52 such that a heat-welded portion 163 of a predetermined width remains between the core material 161 and the adjacent core material 161. Since the hole 164 is formed in a portion of the material 160 that is less affected by the deterioration of the heat insulation performance, it is necessary to discharge air or water from one surface of the vacuum heat insulating material 160 to the other surface, In applications where it is necessary to pass an object (for example, a part such as a pipe) for convenience, or in a composite insulation material in which a vacuum insulation material 160 and a foam insulation material are combined, for convenience of production, one side of the vacuum insulation material to the other side may be used. It can also be applied to places where foam insulation needs to flow on the surface. For example, when the vacuum heat insulating material 160 is provided on clothing to provide a cold protection, sweat vapor can be released to the outside from the hole 164, and the inside of the cold protection can be comfortable without stuffiness.

本実施の形態では、孔１６４の大きさを、実施の形態１５よりも大きく、芯材１６１の略正六角形に内接する円の大きさまで大きくすることができるが、実施の形態１５とは逆に、孔１６４をあけることのできる位置が少なくなる。   In the present embodiment, the size of the hole 164 can be larger than that of the fifteenth embodiment, and can be increased to the size of a circle inscribed in a substantially regular hexagon of the core material 161. The number of positions where the holes 164 can be opened is reduced.

なお、複数の略正六角形の芯材１６１は、熱可塑性樹脂からなるシート部材の片面に接着固定した状態でガスバリア性の外被材５２で覆っても構わない。   The plurality of substantially regular hexagonal core members 161 may be covered with a gas-barrier covering material 52 in a state of being adhered and fixed to one surface of a sheet member made of a thermoplastic resin.

また、真空断熱材１６０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１６３の部分を切断することが好ましい。   When the vacuum heat insulating material 160 is applied, the heat insulating material 52 can be cut into a required size and shape. It is preferable to cut off the welded portion 163.

（実施の形態１７）
以下、本発明の実施の形態１７の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 17)
Hereinafter, a vacuum heat insulating material according to a seventeenth embodiment of the present invention will be described. However, the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図３２は本発明の真空断熱材の実施の形態１７を示す平面図である。   FIG. 32 is a plan view showing a seventeenth embodiment of the vacuum heat insulating material of the present invention.

本実施の形態の真空断熱材１７０は、１６個の略正方形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材１７１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１６個の芯材１７１は、隣接する芯材１７１の間に位置する部分で、芯材１７１の正方形の各辺に平行に、縦、横の２方向の折曲線１７０ａ，１７０ｂを形成できるように、格子状に、縦（横）方向に隣接する芯材１７１と横（縦）の辺が対向するように、所定間隔離して配置されており、この１６個の芯材１７１のそれぞれが独立した空間内に位置するように芯材１７１の周囲に外被材５２の熱溶着部１７３が設けられているものである。   The vacuum heat insulating material 170 of the present embodiment covers 16 core materials 171 of approximately 5 mm thick made of glass fibers molded into a substantially square shape with a gas-barrier outer material 52 and depressurizes the inside of the outer material 52. The 16 core materials 171 are located between the adjacent core materials 171, and are parallel to each side of the square of the core material 171, and are folded in two directions, vertical and horizontal, 170 a and 170 b. The core members 171 adjacent in the vertical (horizontal) direction and the horizontal (vertical) sides are spaced apart from each other by a predetermined distance so that the 16 core members 171 can be formed. Are provided around the core 171 so as to be located in independent spaces.

以上のように本実施の形態の真空断熱材１７０は、複数の略正方形の芯材１７１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材１７１は、隣接する芯材１７１の間に位置する部分で２方向の折曲線１７０ａ，１７０ｂを形成できるように格子状に互いに所定間隔離して配置されており、複数の芯材１７１のそれぞれが独立した空間内に位置するように芯材１７１の周囲に外被材５２の熱溶着部１７３が設けられているので、２方向に真空断熱材１７０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 170 of the present embodiment is formed by covering a plurality of substantially square core materials 171 with the gas barrier coating material 52 and depressurizing the inside of the coating material 52. Are arranged at a predetermined distance from each other in a lattice so as to form two-fold fold curves 170a and 170b in a portion located between the adjacent core members 171. Each of the plurality of core members 171 is independent. Since the heat-sealed portion 173 of the outer cover material 52 is provided around the core material 171 so as to be located in the space, the vacuum heat insulating material 170 can be bent in two directions. There are few restrictions on the shape of the object to be applied, and the application is wide.

また、特定の芯材１７１が入った空間の真空度が低下することが起きても、他の芯材１７１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 171 decreases, the degree of vacuum in the space containing the other core material 171 does not decrease, and the decrease in heat insulation performance is minimized. Can be suppressed.

本実施の形態の熱溶着部１７３のパターンは、所定間隔離れた所定幅の複数の縦線と所定間隔離れた所定幅の複数の横線と外周枠とからなるので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   Since the pattern of the heat-welded portion 173 of the present embodiment includes a plurality of vertical lines having a predetermined width separated by a predetermined distance, a plurality of horizontal lines having a predetermined width separated by a predetermined distance, and an outer peripheral frame, the welding device can be reduced in size and simplified. The welding operation can be easily performed.

本実施の形態では、真空断熱材１７０の外周部に位置する外被材５２と隣接する芯材１７１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部１７３の幅が広く、そのため熱溶着部１７３を通して各芯材１７１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located at the outer peripheral portion of the vacuum heat insulating material 170 and the portion of the outer covering material 52 located between the adjacent core materials 171 are all heat-welded, the heat-welded portions 173 are provided. Is wide, so that the possibility that the degree of vacuum in the space in which each core material 171 enters through the heat-welded portion 173 can be significantly reduced.

また、芯材１７１の形状を、略正方形（長方形）にしたので、２方向に折り曲げ可能な真空断熱材としては、芯材１７１の占める面積の割合が大きいため、比較的断熱性能が高い。したがって、柔軟性と断熱性能のバランスが良い。   Further, since the shape of the core material 171 is substantially square (rectangular), as a vacuum heat insulating material that can be bent in two directions, the ratio of the area occupied by the core material 171 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

なお、本実施の形態の真空断熱材１７０は、縦横方向にそれぞれ４つの芯材１７１が並ぶものであったが、これに限定するものではない。   Although the vacuum heat insulating material 170 of the present embodiment has four core materials 171 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

なお、複数の略正方形の芯材１７１は、熱可塑性樹脂からなるシート部材の片面に接着固定した状態でガスバリア性の外被材５２で覆っても構わない。   The plurality of substantially square core members 171 may be covered with a gas-barrier covering material 52 in a state of being adhered and fixed to one surface of a sheet member made of a thermoplastic resin.

また、真空断熱材１７０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１７３の部分を切断することが好ましい。   When the vacuum heat insulating material 170 is applied, the heat insulating material can be cut into a required size and shape. It is preferable to cut off the welded portion 173.

（実施の形態１８）
以下、本発明の実施の形態１８の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 18)
Hereinafter, a vacuum heat insulating material according to an eighteenth embodiment of the present invention will be described. The same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図３３は本発明の真空断熱材の実施の形態１８を示す平面図である。   FIG. 33 is a plan view showing a vacuum heat insulating material according to an eighteenth embodiment of the present invention.

本実施の形態の真空断熱材１８０は、１３個の略正方形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材１８１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この１３個の芯材１８１は、隣接する芯材１８１の間に位置する部分で、縦、横、斜めの４方向の折曲線１８０ａ，１８０ｂ，１８０ｃ，１８０ｄを形成できるように、千鳥状に、斜め４５度方向に隣接する芯材１８１と角が対向するように、所定間隔離して配置されており、この１３個の芯材１８１のそれぞれが独立した空間内に位置するように芯材１８１の周囲に外被材５２の熱溶着部１８３が設けられ、隣接する芯材１８１の間で、且つ、熱溶着部１８３を間に挟んで芯材１８１の外周側に、外被材５２が熱溶着されていない非熱溶着部１８４を有するものである。   The vacuum heat insulating material 180 according to the present embodiment covers the core material 181 having a thickness of about 5 mm made of 13 substantially square glass fibers with a gas-barrier material 52, and depressurizes the inside of the material 52. The 13 core members 181 are located between the adjacent core members 181 so that bent lines 180a, 180b, 180c, and 180d in four directions of vertical, horizontal, and oblique directions can be formed. The cores 181 adjacent to each other in a staggered 45-degree direction are arranged at predetermined intervals so that the corners thereof face each other, so that each of the 13 cores 181 is located in an independent space. A heat welding portion 183 of the jacket material 52 is provided around the core material 181, and is provided between the adjacent core materials 181 and on the outer peripheral side of the core material 181 with the heat welding portion 183 interposed therebetween. 52 is a non-heat-welded portion 184 not heat-welded. It is intended to.

本実施の形態の真空断熱材１８０は、隣接する芯材１８１の間に位置する外被材５２の熱溶着部１８３で、縦方向、横方向、縦または横に対して４５度の斜め方向の４方向に曲げることができるが、斜め方向は、縦または横方向より曲げやすい。   The vacuum heat insulating material 180 according to the present embodiment is a heat-welded portion 183 of the jacket material 52 located between the adjacent core materials 181, and has a 45 ° oblique direction with respect to the vertical direction, the horizontal direction, or the vertical or horizontal direction. It can be bent in four directions, but it is easier to bend in the diagonal direction than in the vertical or horizontal direction.

以上のように本実施の形態の真空断熱材１８０は、複数の略正方形の芯材１８１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材１８１は、隣接する芯材１８１の間に位置する部分で４方向の折曲線１８０ａ，１８０ｂ，１８０ｃ，１８０ｄを形成できるように千鳥状に互いに所定間隔離して配置されており、複数の芯材１８１のそれぞれが独立した空間内に位置するように芯材１８１の周囲に前記フィルムの熱溶着部が設けられているので、４方向に真空断熱材１８０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 180 according to the present embodiment is formed by covering a plurality of substantially square core members 181 with the gas barrier coating member 52 and depressurizing the inside of the jacket member 52. Are arranged in a zigzag manner and separated from each other by a predetermined distance so as to form four-fold fold curves 180a, 180b, 180c, and 180d at a portion located between the adjacent core members 181. Since the heat-sealed portion of the film is provided around the core 181 so as to be located in an independent space, the vacuum heat insulating material 180 can be bent in four directions. There are few restrictions on the shape of the object to which the method is applied, and the method is widely used.

また、特定の芯材１８１が入った空間の真空度が低下することが起きても、他の芯材１８１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 181 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 181, and the decrease in heat insulation performance is minimized. Can be suppressed.

また、４つの隣接する芯材１８１の間で、且つ、熱溶着部１８３を間に挟んで芯材１８１の外周側に、外被材５２が熱溶着されていない非熱溶着部１８４を有しており、熱溶着部１８３のパターンは、実施の形態１７と同様に、所定間隔離れた所定幅の複数の縦線と所定間隔離れた所定幅の複数の横線と外周枠とからなる単純なパターンなので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   Further, a non-heat-welded portion 184 to which the jacket material 52 is not heat-welded is provided between four adjacent core materials 181 and on the outer peripheral side of the core material 181 with the heat-welded portion 183 interposed therebetween. In the same manner as in the seventeenth embodiment, the pattern of the heat-welded portion 183 is a simple pattern including a plurality of vertical lines having a predetermined width and a predetermined width, a plurality of horizontal lines having a predetermined width and a predetermined width, and an outer peripheral frame. Therefore, the welding apparatus can be reduced in size and simplified, and the welding operation can be easily performed.

本実施の形態の真空断熱材１８０は、実施の形態１７の真空断熱材１７０と比較して、芯材１８１の占める面積の割合が半分になるが、折曲線１８０ａ，１８０ｂ，１８０ｃ，１８０ｄを形成できる方向の数は、実施の形態１７の真空断熱材１７０の２方向の倍の４方向になる。   The vacuum heat insulating material 180 according to the present embodiment has a half of the area occupied by the core material 181 as compared with the vacuum heat insulating material 170 according to the seventeenth embodiment, but forms bent curves 180a, 180b, 180c, and 180d. The number of possible directions is four times, which is twice the two directions of the vacuum heat insulating material 170 of the seventeenth embodiment.

なお、必要であれば、本実施の形態における４つの芯材に囲まれた非熱溶着部１８４に、孔を設けても構わない。その場合、この孔は、４つの隣接する芯材１８１との間に所定幅の熱溶着部１８３が残るように、外被材５２に設けられるので、真空断熱材１８０における断熱性能の低下の影響が少ない。   If necessary, a hole may be provided in the non-heat-welded portion 184 surrounded by the four core members in the present embodiment. In this case, the hole is provided in the outer cover material 52 so that the heat-welded portion 183 of a predetermined width remains between the four adjacent core materials 181. Less is.

本実施の形態の真空断熱材１８０における４つの芯材１８１に囲まれた非熱溶着部１８３に孔を設けた場合は、真空断熱材１８０の一方の面から他方の面に、空気や水を排出する必要がある用途や、適用箇所の都合上、物（例えば、管などの部品）を通す必要がある用途や、真空断熱材１８０と発泡断熱材と組み合わせた複合断熱材において、製造の都合上、真空断熱材の一方の面から他方の面に、発泡断熱材を流す必要がある所にも適用できる。例えば、この孔を設けた真空断熱材１８０を衣類に設けて防寒具とした場合は、この孔から、汗の蒸気を外部に放出することができ、防寒具の内側が蒸れず快適である。   When holes are provided in the non-heat-welded portion 183 surrounded by the four core members 181 in the vacuum heat insulating material 180 of the present embodiment, air or water is applied from one surface of the vacuum heat insulating material 180 to the other surface. In applications where it is necessary to discharge, for applications where it is necessary to pass through objects (for example, parts such as pipes), or in cases where a composite insulation material combining a vacuum insulation material 180 and a foam insulation material, Also, the present invention can be applied to a place where it is necessary to flow a foamed heat insulating material from one surface of the vacuum heat insulating material to the other surface. For example, when the vacuum heat insulating material 180 provided with this hole is provided in clothing to provide a cold protection, sweat vapor can be discharged to the outside from this hole, and the inside of the cold protection is comfortable without stuffiness.

なお、本実施の形態の真空断熱材１８０は、１３個の芯材１８１が千鳥状に並ぶものであったが、これに限定するものではない。   The vacuum heat insulating material 180 according to the present embodiment has the thirteen core materials 181 arranged in a zigzag pattern, but the present invention is not limited to this.

なお、複数の略正方形の芯材１８１は、熱可塑性樹脂からなるシート部材の片面に接着固定した状態でガスバリア性の外被材５２で覆っても構わない。   The plurality of substantially square core members 181 may be covered with a gas-barrier covering material 52 in a state of being adhered and fixed to one surface of a sheet member made of a thermoplastic resin.

また、真空断熱材１８０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１８３または非熱溶着部１８４の部分を切断することが好ましい。   When the vacuum heat insulating material 180 is applied, the heat insulating material can be cut into a required size and shape, but when cutting, the heat of the outer cover material 52 is minimized in order to minimize the deterioration of the heat insulating performance. It is preferable to cut off the welded part 183 or the non-thermally welded part 184.

（実施の形態１９）
以下、本発明の実施の形態１９の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 19)
Hereinafter, a vacuum heat insulating material according to a nineteenth embodiment of the present invention will be described. The same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図３４は本発明の真空断熱材の実施の形態１９を示す平面図である。   FIG. 34 is a plan view showing a nineteenth embodiment of the vacuum heat insulating material of the present invention.

本実施の形態の真空断熱材１９０は、３２個の略正三角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材１９１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この３２個の芯材は１９１、隣接する芯材１９１の間に位置する部分で、芯材１９１の三角形の各辺に平行に、横（０度の方向）と横に対して約６０度、約１２０度の斜めの３方向の折曲線１９０ａ，１９０ｂ，１９０ｃを形成できるように、千鳥状に、隣接する芯材１９１と辺が対向するように、所定間隔離して配置されており、この３２個の芯材１９１のそれぞれが独立した空間内に位置するように芯材１９１の周囲に外被材５２の熱溶着部１９３が設けられているものである。   The vacuum heat insulating material 190 of the present embodiment covers a core material 191 made of 32 glass fibers molded into a substantially equilateral triangle and having a thickness of about 5 mm with a gas-barrier outer material 52, and the inside of the outer material 52. The 32 cores are 191 and are located between the adjacent cores 191, and are parallel to each side of the triangle of the core 191, horizontally (in a direction of 0 degrees) and horizontally. In order to form three oblique curved lines 190a, 190b, and 190c of approximately 60 degrees and approximately 120 degrees, the adjacent core members 191 are arranged at predetermined intervals so as to face the adjacent core members 191 in a staggered manner. The heat-welded portion 193 of the jacket 52 is provided around the core 191 so that each of the 32 cores 191 is located in an independent space.

以上のように本実施の形態の真空断熱材１９０は、複数の略正三角形の芯材１９１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材１９１は、隣接する芯材１９１の間に位置する部分で３方向の折曲線１９０ａ，１９０ｂ，１９０ｃを形成できるように千鳥状に互いに所定間隔離して配置されており、複数の芯材１９１のそれぞれが独立した空間内に位置するように芯材１９１の周囲に外被材５２の熱溶着部１９３が設けられているので、３方向に真空断熱材１９０を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 190 of the present embodiment is formed by covering the plurality of substantially equilateral triangular core members 191 with the gas barrier coating member 52 and depressurizing the inside of the coating member 52, 191 are arranged in a zigzag manner and separated from each other by a predetermined distance so as to form fold curves 190 a, 190 b, and 190 c in three directions at portions located between adjacent core materials 191. Is provided around the core material 191 so as to be located in an independent space, so that the vacuum heat insulating material 190 can be bent in three directions. The shape of the object to be applied is less restricted than the material, and the application is wide.

また、特定の芯材１９１が入った空間の真空度が低下することが起きても、他の芯材１９１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 191 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 191, and the decrease in heat insulation performance is minimized. Can be suppressed.

本実施の形態では、真空断熱材１９０の外周部に位置する外被材５２と隣接する芯材１９１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部１９３の幅が広く、そのため熱溶着部１９３を通して各芯材１９１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located on the outer peripheral portion of the vacuum heat insulating material 190 and the portion of the outer covering material 52 located between the adjacent core materials 191 are all heat-welded, the heat-welded portions 193 are provided. Is wide, so that the possibility that the degree of vacuum in the space in which each core material 191 enters through the heat welding portion 193 can be significantly reduced.

また、真空断熱材１９０の外周部を除く、隣接する芯材１９１の間に位置する熱溶着部１９３は、所定間隔離れた所定幅の複数の横線と所定間隔離れた所定幅の複数の約６０度の斜め線と所定間隔離れた所定幅の複数の約１２０度の斜め線とからなる単純なパターンなので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   Except for the outer peripheral portion of the vacuum heat insulating material 190, the heat-welded portions 193 located between the adjacent core members 191 are formed by a plurality of horizontal lines having a predetermined width separated by a predetermined distance and a plurality of horizontal lines having a predetermined width separated by a predetermined distance. Since it is a simple pattern consisting of a diagonal line having a predetermined width and a plurality of diagonal lines having a predetermined width and having a predetermined width, the welding device can be reduced in size and simplified, and the welding operation can be easily performed.

本実施の形態の真空断熱材１９０は、芯材１９１の占める面積の割合を比較的多くできる。   In the vacuum heat insulating material 190 of the present embodiment, the ratio of the area occupied by the core material 191 can be relatively increased.

なお、本実施の形態の真空断熱材１９０は、３２個の芯材１７１が千鳥状に並ぶものであったが、これに限定するものではない。   In addition, the vacuum heat insulating material 190 of the present embodiment has the thirty-two core materials 171 arranged in a staggered manner, but the present invention is not limited to this.

なお、複数の略正三角形の芯材は、熱可塑性樹脂からなるシート部材の片面に接着固定した状態でガスバリア性の外被材５２で覆っても構わない。   The plurality of substantially equilateral triangular core members may be covered with a gas-barrier covering material 52 in a state of being adhered and fixed to one surface of a sheet member made of a thermoplastic resin.

また、真空断熱材１９０の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部１９３の部分を切断することが好ましい。   When the vacuum heat insulating material 190 is applied, the heat insulating material can be cut into a required size and shape. It is preferable to cut off the welded portion 193.

（実施の形態２０）
以下、本発明の実施の形態２０の真空断熱材について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 20)
Hereinafter, a vacuum heat insulating material according to a twentieth embodiment of the present invention will be described. However, the same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図３５は本発明の真空断熱材の実施の形態２０を示す平面図である。   FIG. 35 is a plan view showing a twentieth embodiment of the vacuum heat insulating material of the present invention.

本実施の形態の真空断熱材２００は、３２個の略直角二等辺三角形に成型されたガラス繊維からなる厚さ５ｍｍ前後の芯材２０１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、この３２個の芯材２０１は、隣接する芯材２０１の間に位置する部分で、芯材２０１の直角二等辺三角形の各辺に平行に、縦、横、縦または横に対して４５度の斜めの４方向の折曲線２００ａ，２００ｂ，２００ｃ，２００ｄを形成できるように、２つの芯材２０１を略正方形になるように組み合わせたもの（４つの芯材２０１を略正方形を４５度回転させた形になるように直角の角をつきあわせるように組み合わせたもの）を、千鳥状に、隣接する芯材２０１と辺が対向するように、所定間隔離して配置されており、この３２個の芯材２０１のそれぞれが独立した空間内に位置するように芯材２０１の周囲にフィルムの熱溶着部２０３が設けられているものである。   The vacuum heat insulating material 200 of the present embodiment covers the core material 201 of about 5 mm thick made of glass fiber molded into 32 approximately right-angled isosceles triangles with a gas-barrier outer material 52. The interior of the core 201 is decompressed. The 32 cores 201 are located between the adjacent cores 201, and are parallel to each side of the right-angled isosceles triangle of the core 201, and are vertically, horizontally, vertically or A combination of two cores 201 so as to form a substantially square shape so that bent curves 200a, 200b, 200c, and 200d in four directions oblique to 45 degrees in the horizontal direction (the four cores 201 are substantially Squares that are rotated 45 degrees so that the right-angled corners are joined together), and are arranged in a staggered manner and separated by a predetermined distance so that the adjacent core 201 faces the side. And these 32 cores 20 The one in which the heat seal parts 203 of the film around the core members 201 so that each positioned in a separate space is provided.

本実施の形態では、所定間隔離れて隣接する２つの略直角二等辺三角形の芯材２０１を、略正方形になるように、長辺が対向するように組み合わせ、所定間隔離れて隣接する４つの略直角二等辺三角形の芯材２０１を、略正方形になるように、略直角の角が集まるように組み合わせている。   In the present embodiment, two substantially right-angled isosceles triangular core members 201 adjacent to each other at a predetermined interval are combined so that the long sides thereof are opposed to each other so as to be substantially square, and four substantially adjacent isotopes at a predetermined interval are adjacent to each other. The right-angled isosceles triangular core members 201 are combined so that substantially right-angled corners gather so as to be substantially square.

以上のように本実施の形態の真空断熱材２００は、複数の略直角二等辺三角形の芯材２０１をガスバリア性の外被材５２で覆い外被材５２の内部を減圧して成り、複数の芯材２０１は、隣接する芯材２０１の間に位置する部分で４方向の折曲線２００ａ，２００ｂ，２００ｃ，２００ｄを形成できるように、２つの芯材２０１を略正方形になるように組み合わせたもの（４つの芯材２０１を略正方形を４５度回転させた形になるように直角の角をつきあわせるように組み合わせたもの）を、千鳥状に互いに所定間隔離して配置されており、複数の芯材２０１のそれぞれが独立した空間内に位置するように芯材２０１の周囲にフィルムの熱溶着部２０３が設けられているので、４方向に真空断熱材２００を折り曲げることができ、そのため従来の真空断熱材よりも適用する対象物の形状に制限が少なく、用途が広い。   As described above, the vacuum heat insulating material 200 of the present embodiment is formed by covering the plurality of substantially right-angled isosceles triangular core members 201 with the gas-barrier outer material 52 and depressurizing the inside of the outer material 52, The core material 201 is obtained by combining two core materials 201 into a substantially square shape so that bent portions 200a, 200b, 200c, and 200d in four directions can be formed at portions located between the adjacent core materials 201. (The four core members 201 are combined so that right angles are brought together so as to form a shape obtained by rotating a substantially square by 45 degrees), and are arranged in a staggered manner and separated from each other by a predetermined distance. The heat insulating portion 203 of the film is provided around the core material 201 so that each of the materials 201 is located in an independent space, so that the vacuum heat insulating material 200 can be bent in four directions. Fewer restrictions on the shape of the object to be applied than the vacuum heat insulator, versatile.

また、特定の芯材２０１が入った空間の真空度が低下することが起きても、他の芯材２０１が入った空間の真空度まで低下することはなく、断熱性能の低下を最小限に抑えることができる。   Further, even if the degree of vacuum in the space containing the specific core material 201 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 201. Can be suppressed.

本実施の形態では、真空断熱材２００の外周部に位置する外被材５２と隣接する芯材２０１の間に位置する部分の外被材５２がすべて熱溶着されているので、熱溶着部２０３の幅が広く、そのため熱溶着部２０３を通して各芯材２０１が入った空間の真空度が低下する可能性をかなり低くできる。   In the present embodiment, since the outer covering material 52 located at the outer peripheral portion of the vacuum heat insulating material 200 and the portion of the outer covering material 52 located between the adjacent core materials 201 are all heat-welded, Is wide, so that it is possible to considerably reduce the possibility that the degree of vacuum in the space in which each core material 201 enters through the heat welding portion 203 is reduced.

また、真空断熱材２００の外周部を除く、隣接する芯材２０１の間に位置する熱溶着部２０３は、所定間隔離れた所定幅の複数の縦線と所定間隔離れた所定幅の複数の横線と所定間隔離れた所定幅の複数の約４５度の斜め線と所定間隔離れた所定幅の複数の約１３５度の斜め線とからなる単純なパターンなので、溶着装置の小型化、簡略化が可能になり、溶着作業が容易に行える。   Except for the outer peripheral portion of the vacuum heat insulating material 200, the heat-welded portion 203 located between the adjacent core members 201 has a plurality of vertical lines having a predetermined width apart from each other and a plurality of horizontal lines having a predetermined width apart from each other. This is a simple pattern consisting of a plurality of approximately 45-degree diagonal lines of a predetermined width separated by a predetermined distance and a plurality of approximately 135-degree diagonal lines of a predetermined width separated by a predetermined distance, so that the welding device can be reduced in size and simplified. And the welding operation can be easily performed.

本実施の形態の真空断熱材２００は、芯材２０１の占める面積の割合を比較的多くできる。   In the vacuum heat insulating material 200 of the present embodiment, the ratio of the area occupied by the core 201 can be relatively increased.

なお、本実施の形態の真空断熱材２００は、３２個の芯材２０１が千鳥状に並ぶものであったが、これに限定するものではない。   In addition, in the vacuum heat insulating material 200 of the present embodiment, the 32 core materials 201 are arranged in a staggered manner, but the present invention is not limited to this.

なお、複数の略直角二等辺三角形の芯材２０１は、熱可塑性樹脂からなるシート部材の片面に接着固定した状態でガスバリア性の外被材５２で覆っても構わない。   The plurality of substantially right-angled isosceles triangular core members 201 may be covered with a gas-barrier covering material 52 in a state of being adhered and fixed to one surface of a sheet member made of a thermoplastic resin.

また、真空断熱材２００の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部２０３の部分を切断することが好ましい。   When the vacuum heat insulating material 200 is applied, the heat insulating material 52 can be cut into a required size and shape. It is preferable to cut off the welded portion 203.

本実施の形態の真空断熱材２００は、縦横の折曲線の間隔を斜め４５度の折曲線の間隔より狭くしているが、縦横の折曲線の間隔を斜め４５度の折曲線の間隔より広くしたい場合は、本実施の形態の真空断熱材２００を正（反時計回り）方向または負（時計回り）方向に４５度回転させた配列の芯材２０１を用いる。   In the vacuum heat insulating material 200 according to the present embodiment, the interval between the vertical and horizontal fold curves is narrower than the interval between the 45-degree oblique fold curves, but the interval between the vertical and horizontal fold curves is wider than the interval between the 45-degree oblique fold curves. If desired, a core material 201 in which the vacuum heat insulating material 200 of the present embodiment is rotated 45 degrees in the positive (counterclockwise) or negative (clockwise) direction is used.

また、真空断熱材２００の適用時は、必要な大きさ、形に切断して使用することができるが、切断時は、断熱性能の低下を最小限に止めるために、外被材５２の熱溶着部２０３の部分を切断することが好ましい。   When the vacuum heat insulating material 200 is applied, the heat insulating material 52 can be cut into a required size and shape. It is preferable to cut off the welded portion 203.

（実施の形態２１）
以下、本発明の実施の形態２１の真空断熱材を用いた防寒具について説明するが、実施の形態５と同一構成については、同一符号を付してその詳細な説明は省略する。 (Embodiment 21)
Hereinafter, a cold protection device using a vacuum heat insulating material according to a twenty-first embodiment of the present invention will be described. The same components as those in the fifth embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

図３６は本発明の真空断熱材を用いた防寒具の実施の形態２１を示す正面図、図３７は同実施の形態の真空断熱材を用いた防寒具の背面図である。   FIG. 36 is a front view showing Embodiment 21 of the cold protection equipment using the vacuum heat insulating material of the present invention, and FIG. 37 is a rear view of the cold protection equipment using the vacuum heat insulating material of the same embodiment.

本実施の形態の防寒具２１０は、衣料としてのジャケット２１１の中に、芯材の数と大きさとフィルムの形状をジャケット２１１用に調整した実施の形態５の真空断熱材５０を設けたものである。   The cold weather protector 210 of the present embodiment is provided with the vacuum heat insulating material 50 of the fifth embodiment in which the number and size of the core material and the shape of the film are adjusted for the jacket 211 in a jacket 211 as clothing. is there.

真空断熱材５０は、所定の大きさの長方形の真空断熱材を製造した後に、ジャケット２１１に合わせて切断したものでも構わない。その場合、切断されて役に立たない部分の芯材を最初からフィルム内に配置しないようにして真空断熱材５０を製造しても構わない。   The vacuum heat insulating material 50 may be manufactured by manufacturing a rectangular vacuum heat insulating material of a predetermined size and then cutting the vacuum heat insulating material according to the jacket 211. In this case, the vacuum heat insulating material 50 may be manufactured such that the cut and useless portion of the core material is not arranged in the film from the beginning.

ここで、真空断熱材５０は、４方向に折り曲げ可能であるため、芯材の大きさを適切に選択することにより、動きやすい防寒具用に適した柔軟性を確保できるので、真空断熱材の高い断熱性能を活かした薄くて断熱性能の高い防寒具を提供できる。   Here, since the vacuum heat insulating material 50 can be bent in four directions, by appropriately selecting the size of the core material, it is possible to secure the flexibility suitable for the easy-to-move cold protection equipment. It is possible to provide a thin, high-heat-insulation cold protector utilizing high heat-insulating performance.

なお、真空断熱材５０が、ジャケット２１１に形成された袋部に挿入されるようにすると、真空断熱材５０を見えないようにでき、ジャケット２１１に形成された袋部に真空断熱材５０を挿入するだけで、真空断熱材５０に損傷を与える心配なく、ジャケット２１１と真空断熱材５０を容易に一体化でき、真空断熱材５０の取り外し、取り替えが比較的簡単にできる。   When the vacuum heat insulating material 50 is inserted into the bag portion formed on the jacket 211, the vacuum heat insulating material 50 can be made invisible, and the vacuum heat insulating material 50 can be inserted into the bag portion formed on the jacket 211. By simply doing so, the jacket 211 and the vacuum heat insulating material 50 can be easily integrated without any fear of damaging the vacuum heat insulating material 50, and the removal and replacement of the vacuum heat insulating material 50 can be relatively easily performed.

また、真空断熱材５０が、マジックテープ（登録商標）、ファスナー、ボタン、フォックその他の係止具により、ジャケット２１１に着脱可能に取り付けられるようにすると、温暖な気候になって高い断熱性が不要な時や、クリーニング時に、防寒具から真空断熱材を取り外せて便利である。   Further, if the vacuum heat insulating material 50 is detachably attached to the jacket 211 by a magic tape (registered trademark), a fastener, a button, a hook, or other fasteners, a high temperature insulation is not required due to a warm climate. At the time of cleaning and cleaning, it is convenient to remove the vacuum insulation from the cold protection equipment.

本実施の形態の防寒具は、実施の形態５の真空断熱材５０を用いたが、実施の形態６から２０のいずれかの真空断熱材を用いても良く、通気性が必要であれば、実施の形態８、９、１２、１３、１５、１６のような孔のあいた真空断熱材を用いることができる。孔のあいた真空断熱材を用いた場合は、この孔から、汗の蒸気を外部に放出することができ、防寒具の内側が蒸れず快適である。   Although the cold protection device of the present embodiment uses the vacuum heat insulating material 50 of the fifth embodiment, any of the vacuum heat insulating materials of the sixth to twentieth embodiments may be used. A vacuum heat insulating material having holes as in Embodiments 8, 9, 12, 13, 15, and 16 can be used. In the case where a perforated vacuum heat insulating material is used, sweat vapor can be discharged to the outside from the perforated hole, and the inside of the cold protection equipment is comfortable without being stuffy.

なお、本実施の形態では、ジャケットで説明したが、他の衣類にも適用可能である。   In the present embodiment, the description has been made of the jacket, but the present invention can be applied to other clothing.

（実施の形態２２）
図３８は、本発明の実施の形態２２によるパーソナルコンピューターの側面図、図３９は本発明の実施の形態２２によるパーソナルコンピューターを上から見た透視図である。 (Embodiment 22)
FIG. 38 is a side view of a personal computer according to Embodiment 22 of the present invention, and FIG. 39 is a perspective view of the personal computer according to Embodiment 22 of the present invention as viewed from above.

本実施の形態のパーソナルコンピューター２２０は、いわゆるノート型と称される形態で、本体の上面にキーボード２２１を有し、内部にはプリント基板２２２上にＣＰＵ２２３とその他各チップを実装している。ＣＰＵ２２３は冷却装置２２４で発熱から保護され、冷却装置２２４はＣＰＵ２２３に接する伝熱ブロック２２５、熱を移送するヒートパイプ２２６、移送された熱をパーソナルコンピューター２２０より強制的に放熱するヒートシンク２２７とファン２２８により構成される。放熱板２２９は内部の熱を拡散し、かつ本体底面２３０に伝えて放熱する。真空断熱材２３１は、ＣＰＵ２２３の真下で本体底面２３０の内側、およびＣＰＵ２２３の真上のキーボード裏面２２１ａに接着剤で密着させて装着している。   The personal computer 220 of the present embodiment has a keyboard 221 on the upper surface of a main body and a CPU 223 and other chips mounted on a printed circuit board 222 in a so-called notebook type. The CPU 223 is protected from heat generation by a cooling device 224. The cooling device 224 includes a heat transfer block 225 in contact with the CPU 223, a heat pipe 226 for transferring heat, a heat sink 227 for forcibly dissipating the transferred heat from the personal computer 220, and a fan 228. It consists of. The heat radiating plate 229 diffuses internal heat and transmits the heat to the main body bottom surface 230 to radiate heat. The vacuum heat insulating material 231 is attached directly below the CPU 223 to the inside of the main body bottom surface 230 and to the keyboard back surface 221 a directly above the CPU 223 with an adhesive.

この真空断熱材２３１は、本発明の実施の形態３に準じて任意の形状に作製したものである。材料は、芯材として湿式シリカ粉末の圧縮成形体をトムソンで切り抜いたもの、外被材として表面保護層にポリエチレンテレフタレートフィルム、ガスバリア層にエチレンビニルアルコール共重合体樹脂フィルムにアルミ蒸着を施したもの、熱溶着層に高密度ポリエチレンを使用している。真空断熱材２３１の内圧は１３３．３Ｐａで、厚さは２ｍｍ、大きさは９５ｍｍ×５０ｍｍの長方形の中で、リブを避けるために２箇所に切欠き２３１ａを設けたものとしている。この真空断熱材２３１の熱伝導率を測定したところ０．００８０Ｗ／ｍＫであった。   This vacuum heat insulating material 231 is formed in an arbitrary shape according to the third embodiment of the present invention. The material is a material obtained by cutting out a compression molded body of wet silica powder with Thomson as a core material, a polyethylene terephthalate film for a surface protective layer as a jacket material, and an aluminum vapor-deposited ethylene vinyl alcohol copolymer resin film for a gas barrier layer. The high-density polyethylene is used for the heat-sealing layer. The internal pressure of the vacuum heat insulating material 231 is 133.3 Pa, the thickness is 2 mm, and the size is 95 mm × 50 mm, and two notches 231 a are provided to avoid ribs in a rectangle. When the thermal conductivity of this vacuum heat insulating material 231 was measured, it was 0.0080 W / mK.

このように構成されたパーソナルコンピューター２２０の表面温度を測定したところ、真空断熱材未装着時より、ＣＰＵ２２３の真下の本体底面２３０で約４Ｋ低減させることができ、ＣＰＵ２２３の真上のキーボードで約３．５Ｋ低減させることができた。さらに本体底面全体でも２Ｋ以上低減させることができた。   When the surface temperature of the personal computer 220 configured as described above was measured, the temperature could be reduced by about 4K on the bottom surface 230 of the main body directly below the CPU 223 than when the vacuum heat insulating material was not attached. .5K could be reduced. Furthermore, the entire body bottom surface was reduced by 2K or more.

これはリブを避けられずに５０ｍｍ×５０ｍｍの大きさの真空断熱材しか装着できないと想定した場合には、ＣＰＵ２２３の真下の本体底面２３０で約１．５Ｋ、ＣＰＵ２２３の真上のキーボードで約１Ｋの温度低減しか観測されなかったのと比較して大きな効果が得られ、利用者がパーソナルコンピューターを長時間膝の上において作業した場合の底面から受ける熱による不快感や、利用者が作業中キーボード上に手を置いたときに受ける熱による不快感を減らすことができる。   If it is assumed that only the vacuum heat insulating material of 50 mm × 50 mm can be installed without avoiding the ribs, it is about 1.5K on the bottom surface 230 of the main body just below the CPU 223 and about 1K on the keyboard just above the CPU 223. This is a great effect compared to the case where only the temperature of the personal computer was reduced, the discomfort caused by the heat received from the bottom surface when the user worked on the personal computer for a long time on the knee, and the keyboard during the work. The discomfort caused by the heat received when placing the hand on the top can be reduced.

なお、真空断熱材２３１を装着する位置は、局所発熱を起こすものならばＣＰＵ２２３に限らず、本体底面２３０の内側には放熱等のために放熱板２２９やアルミの蒸着が全面に施されている場合もあるが、真空断熱材２３１の装着はこれらの上でもかまわない。   The position where the vacuum heat insulating material 231 is mounted is not limited to the CPU 223 as long as it causes local heat generation, and a heat radiating plate 229 or aluminum is deposited on the entire surface of the inside of the main body bottom surface 230 for heat radiation or the like. In some cases, the vacuum heat insulating material 231 may be mounted on these.

以上のように、本発明にかかる真空断熱材は、芯材の周囲に形成される芯材を含まない外被材の周縁部において、非熱溶着部がなく熱溶着部だけで小さな幅に抑制できるため、真空断熱材の断熱有効面積が拡大すると共に、周縁部を処理する必要性も小さくなり、また、複雑な形状の形成も可能であり、真空断熱材を容易にかつ広範囲に適用することが可能となる。   As described above, the vacuum heat insulating material according to the present invention has a non-heat-welded portion and a small width only by the heat-welded portion at the peripheral portion of the jacket material that does not include the core material formed around the core material. As a result, the effective area of heat insulation of the vacuum heat insulating material is increased, the necessity of treating the peripheral portion is reduced, and a complicated shape can be formed, so that the vacuum heat insulating material can be easily and widely applied. Becomes possible.

よって、省エネを必要とする保温保冷機器に留まらず、情報機器や電子機器等、省スペースを必要とする機器の熱害対策用断熱材等の用途にも適用できる。   Therefore, the present invention can be applied not only to heat-insulating and cold-holding devices requiring energy saving but also to applications such as heat insulating materials for heat damage countermeasures of devices requiring space saving such as information devices and electronic devices.

また、複数の芯材の大きさを適切に選択して柔軟性を確保することにより、より用途が広い真空断熱材とすることができ、防寒具としてのジャケットのほか、ズボンや帽子、手袋、または寝具のふとんや座布団等にも適用できる。   In addition, by appropriately selecting the size of multiple core materials and securing flexibility, it is possible to make a vacuum insulation material that is more versatile, in addition to jackets as cold protection, pants, hats, gloves, Alternatively, the present invention can be applied to a bedding futon or a cushion.

本発明の実施の形態１における多芯真空断熱材の平面図FIG. 2 is a plan view of the multi-core vacuum heat insulating material according to the first embodiment of the present invention. 図１のＡ−Ａ線断面図1 is a sectional view taken along line AA of FIG. 同実施の形態の真空断熱材の製造に使用する真空包装機の概略断面図Schematic sectional view of a vacuum packaging machine used for manufacturing the vacuum heat insulating material of the embodiment. 本発明の実施の形態２における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 2 of the present invention 実施の形態２の変形例の真空断熱材の平面図Plan view of a vacuum heat insulating material according to a modification of the second embodiment. 実施の形態２の別の変形例の真空断熱材の平面図Plan view of a vacuum heat insulating material of another modification of the second embodiment. 本発明の実施の形態３における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 3 of the present invention 実施の形態３の変形例の真空断熱材の平面図Plan view of a vacuum heat insulating material according to a modification of the third embodiment. 本発明の実施の形態４における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 4 of the present invention 図９のＢ−Ｂ線断面図BB sectional drawing of FIG. 本発明の実施の形態５における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 5 of the present invention 図１１のＣ−Ｃ線断面図CC sectional view taken on the line of FIG. 本発明の実施の形態６における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 6 of the present invention 本発明の実施の形態７における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 7 of the present invention 図１４のＤ−Ｄ線断面図FIG. 14 is a sectional view taken along line D-D in FIG. 14. 実施の形態７の変形例の真空断熱材の平面図Plan view of a vacuum heat insulating material according to a modification of the seventh embodiment. 本発明の実施の形態８における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 8 of the present invention 図１７のＥ−Ｅ線断面図FIG. 17 is a sectional view taken along line EE of FIG. 17. 本発明の実施の形態９における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 9 of the present invention 図１９のＦ−Ｆ線断面図19 is a sectional view taken along line FF of FIG. 本発明の実施の形態１０における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 10 of the present invention 図２１のＧ−Ｇ線断面図FIG. 21 is a sectional view taken along line GG of FIG. 21. 本発明の実施の形態１１における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 11 of the present invention 図２３のＨ−Ｈ線断面図HH sectional view of FIG. 23 本発明の実施の形態１２における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 12 of the present invention 図２５のＩ−Ｉ線断面図FIG. 25 is a sectional view taken along line II of FIG. 25. 本発明の実施の形態１３における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 13 of the present invention 図２７のＪ−Ｊ線断面図FIG. 27 is a sectional view taken along line JJ of FIG. 本発明の実施の形態１４における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 14 of the present invention 本発明の実施の形態１５における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 15 of the present invention 本発明の実施の形態１６における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 16 of the present invention. 本発明の実施の形態１７における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 17 of the present invention 本発明の実施の形態１８における真空断熱材の平面図Plan view of vacuum heat insulating material according to Embodiment 18 of the present invention 本発明の実施の形態１９における真空断熱材の平面図A plan view of a vacuum heat insulating material according to a nineteenth embodiment of the present invention. 本発明の実施の形態２０における真空断熱材の平面図20 is a plan view of a vacuum heat insulating material according to a twentieth embodiment of the present invention. 本発明の真空断熱材を用いた防寒具の実施の形態２１を示す正面図A front view showing Embodiment 21 of the cold protection equipment using the vacuum heat insulating material of the present invention. 同実施の形態の防寒具の背面図Rear view of the cold protection equipment of the embodiment 本発明の実施の形態２２によるパーソナルコンピューターの側面図Side view of personal computer according to Embodiment 22 of the present invention 同実施の形態のパーソナルコンピューターを上から見た透視図A perspective view of the personal computer of the embodiment viewed from above. 特許文献１に示される従来の真空断熱材の製造過程を示す斜視図FIG. 1 is a perspective view showing a manufacturing process of a conventional vacuum heat insulating material disclosed in Patent Document 1. 同従来の真空断熱材を示す斜視図Perspective view showing the conventional vacuum heat insulating material 特許文献２に示される従来の真空断熱材の平面図Plan view of a conventional vacuum heat insulating material shown in Patent Document 2 同従来の真空断熱材を断熱箱体の外箱に設けた状態の断面図Sectional view of a state where the conventional vacuum heat insulating material is provided on an outer box of a heat insulating box.

符号の説明Explanation of reference numerals

１０ 真空断熱材
１１，３１，４１ 芯材
１２，１２ａ，１２ｂ 外被材
１３，２１，２３，２６，４２ 熱溶着部
２０，２２，２５，３０，３５，４０ 真空断熱材
３２ａ，３２ｂ 熱溶着部
４５ 溶断部
５０，６０，７０，８０，９０，１００，１１０，１２０，１３０ 真空断熱材
５１，１４１，１５１，１６１，１７１，１８１，１９１，２０１ 芯材
５２ 外被材
５３，７３，８３，９３，１０３，１１３，１２３，１３３，１４３ 熱溶着部
７４，７４ａ，９５，１１５，１３６，１８４ 非熱溶着部
１４０，１５０，１６０，１７０，１８０，１９０，２００ 真空断熱材
１５３１７１２３，１７３，１８３，１９３，２０３ 熱溶着部
２３１ 真空断熱材 Reference Signs List 10 vacuum heat insulating material 11, 31, 41 core material 12, 12a, 12b jacket material 13, 21, 23, 26, 42 heat welding part 20, 22, 25, 30, 35, 40 vacuum heat insulating material 32a, 32b heat welding Part 45 Fusing part 50, 60, 70, 80, 90, 100, 110, 120, 130 Vacuum heat insulating material 51, 141, 151, 161, 171, 181, 191, 201 Core material 52 Outer material 53, 73, 83 , 93, 103, 113, 123, 133, 143 Thermal welding parts 74, 74a, 95, 115, 136, 184 Non-thermal welding parts 140, 150, 160, 170, 180, 190, 200 Vacuum insulation materials 15317123, 173 183, 193, 203 Heat welding part 231 Vacuum heat insulating material

Claims (6)

熱溶着層を有するガスバリア性の外被材と、板状の芯材とを有し、前記熱溶着層同士が対向する前記外被材の間に前記芯材が減圧密封され、前記芯材の周囲に前記芯材を間に含まず密着した前記外被材のみから構成される周縁部が形成された真空断熱材であって、前記真空断熱材の厚みが０．５ｍｍ以上５ｍｍ以下で、前記周縁部の全ての前記外被材が熱溶着されている真空断熱材。   A gas-barrier covering material having a heat-welding layer, and a plate-shaped core material, wherein the core material is sealed under reduced pressure between the covering materials facing each other, and A vacuum heat insulating material having a peripheral portion formed of only the outer cover material that is in close contact with the core material therebetween without including the core material therebetween, wherein the vacuum heat insulating material has a thickness of 0.5 mm or more and 5 mm or less, A vacuum heat insulating material in which all of the outer jacket materials at the periphery are heat-welded. 熱溶着層を有するガスバリア性の外被材と、板状の芯材とを有し、前記熱溶着層同士が対向する前記外被材の間に前記芯材が減圧密封され、前記芯材の周囲に前記外被材の熱溶着部が形成された真空断熱材であって、前記真空断熱材の厚みが０．５ｍｍ以上５ｍｍ以下で、前記芯材の周囲の前記熱溶着部と前記芯材との間に、前記外被材が密着しただけで溶着されていない部分がない真空断熱材。   A gas-barrier covering material having a heat-welding layer, and a plate-shaped core material, wherein the core material is sealed under reduced pressure between the covering materials facing each other, and A vacuum heat insulating material having a heat-welded portion of the jacket material formed therearound, wherein the thickness of the vacuum heat-insulating material is 0.5 mm or more and 5 mm or less, and the heat-welded portion around the core material and the core material are provided. And a vacuum heat insulating material having no unwelded portions between the outer cover material and the outer cover material. 芯材は複数個あり、隣接する前記芯材の間に位置する部分の外被材すべてが熱溶着されて前記複数の芯材のそれぞれが独立した空間内に位置している請求項１または請求項２記載の真空断熱材。   2. A core material comprising a plurality of core materials, wherein all of the jacket materials located between the adjacent core materials are thermally welded, and each of the plurality of core materials is located in an independent space. Item 7. The vacuum heat insulating material according to Item 2. 外被材の間に芯材がある部分の熱溶着層が溶融して、前記芯材の表面部分と結着している請求項１から請求項３のうちいずれか一項記載の真空断熱材。   The vacuum heat insulating material according to any one of claims 1 to 3, wherein a heat-welded layer in a portion where the core material is located between the jacket materials is melted and bonded to a surface portion of the core material. . 外被材が、芯材に沿って所定幅の熱溶着部が残るように切断されている請求項１から請求項４のうちいずれか一項記載の真空断熱材。   The vacuum heat insulating material according to any one of claims 1 to 4, wherein the outer cover material is cut so that a heat-welded portion having a predetermined width remains along the core material. 外被材の切断が溶断による請求項５記載の真空断熱材。   The vacuum heat insulating material according to claim 5, wherein the cutting of the jacket material is performed by fusing.
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