JP4313122B2 - Dismantling and recovery method for vacuum insulation - Google Patents

Dismantling and recovery method for vacuum insulation Download PDF

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JP4313122B2
JP4313122B2 JP2003303887A JP2003303887A JP4313122B2 JP 4313122 B2 JP4313122 B2 JP 4313122B2 JP 2003303887 A JP2003303887 A JP 2003303887A JP 2003303887 A JP2003303887 A JP 2003303887A JP 4313122 B2 JP4313122 B2 JP 4313122B2
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heat insulating
insulating material
vacuum heat
refrigerator
vacuum
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JP2005069657A (en
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常固 堤
健二 高市
博志 辻田
良典 酒井
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Panasonic Corp
Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description

本発明は、冷蔵庫に使用する真空断熱材の構造と、その解体回収方法に関する。   The present invention relates to a structure of a vacuum heat insulating material used in a refrigerator and a method for dismantling and collecting the same.

近年、地球環境保護の視点より、省エネルギーや省資源に対して、様々な取り組みがなされている。家電製品においては、消費電力の削減による省エネルギー化や解体回収により再利用して、省資源化や環境汚染防止がはかられている。特に冷蔵庫では、断熱効率のよい真空断熱材の利用による省エネルギー化と、真空断熱材の解体回収による省資源化が求められている。   In recent years, various efforts have been made to save energy and resources from the viewpoint of protecting the global environment. Household appliances are reused through energy saving and dismantling and recovery by reducing power consumption, thereby saving resources and preventing environmental pollution. In particular, refrigerators are required to save energy by using vacuum heat insulating materials with good heat insulating efficiency and to save resources by dismantling and recovering vacuum heat insulating materials.

この真空断熱材料の再利用は、埋め立てや焼却による環境汚染の抑制につながり、省資源の観点からも極めて重要である。図１４のフローチャートを用いて、従来の真空断熱材の解体回収方法について説明する。   The reuse of this vacuum heat insulating material leads to suppression of environmental pollution caused by landfill and incineration, and is extremely important from the viewpoint of resource saving. A conventional method for dismantling and recovering a vacuum heat insulating material will be described with reference to the flowchart of FIG.

図１４の破砕工程において、ステップ１（以下、ステップをｓｔｐと記載）で、回収された冷蔵庫は破砕材料として搬入される。ｓｔｐ２では、搬入された破砕材料が、種々の破砕機器を用いて機械的に破砕される。つぎに、破砕された金属類やゴム等の重いものは、ｓｔｐ３の振動コンベアとｓｔｐ４の磁力選別とにより、ｓｔｐ５の鉄や非鉄金属およびゴム等に分類され、再利用や廃棄される。   In the crushing process of FIG. 14, the recovered refrigerator is carried in as a crushing material in step 1 (hereinafter, step is described as stp). In stp2, the carried crushing material is mechanically crushed using various crushing devices. Next, crushed metals, rubber, and other heavy materials are classified into stp5 iron, non-ferrous metal, rubber, and the like by the vibration conveyor of stp3 and magnetic separation of stp4, and are reused or discarded.

一方破砕された材料のうち、内板や断熱材を構成する樹脂材料等の軽いものは、真空断熱材処理工程に送るためｓｔｐ２における破砕後、ｓｔｐ６のダクトにより吸い出され、ｓｔｐ７のサイクロンに送られる。サイクロン内では、ｓｔｐ８で真空断熱材の芯材を形成しているガラス繊維と、ポリエステル樹脂で形成されている芯材を入れる袋や、発泡ウレタン樹脂の充填断熱材やＡＢＳ樹脂等の樹脂で形成される内板等の材料に分別される。なお、芯材を形成するガラス繊維は、単に繊維の集綿体の状態、または集綿体を結合材で固めた状態のいずれかで用いている。ついでｓｔｐ９において、真空断熱材のガラス繊維のみを分別回収する。   On the other hand, among the crushed materials, light materials such as resin materials constituting the inner plate and the heat insulating material are sucked out by the duct of stp6 after being crushed in stp2 and sent to the cyclone of stp7 for sending to the vacuum heat insulating material treatment process. It is done. Inside the cyclone, the glass fiber that forms the core material of the vacuum heat insulating material at stp8 and the bag containing the core material formed of the polyester resin, the heat insulating material filled with foamed urethane resin, and the resin such as ABS resin are formed. Are separated into materials such as inner plates. In addition, the glass fiber which forms a core material is used in either a state of a fiber collection body or a state in which the collection body is hardened with a binder. Next, in step 9, only the glass fiber of the vacuum heat insulating material is separated and collected.

回収された真空断熱材のガラス繊維は、ｓｔｐ１０の再処理工程で、混入しているガラス繊維以外の材料や、破砕により細かく粉砕されたガラス繊維を不純物として除去して、所定長さ以上のガラス繊維が処理選別される。このようにして選別されたガラス繊維は、ｓｔｐ１１でガラス繊維の断熱材として再利用される。   The recovered glass fiber of the vacuum heat insulating material is a glass of a predetermined length or more by removing materials other than the mixed glass fiber and glass fiber finely crushed by crushing as impurities in the reprocessing step of stp10. The fiber is processed and sorted. The glass fiber thus selected is reused as a heat insulating material for glass fiber at stp11.

しかしながら上記のような構成では、破砕することにより、全ての材料が混在してしまい、分離、分別に時間と労力がかかるという課題がある。また真空断熱材の主材料である芯材はガラス繊維のためもろく、繊維長さが短く裁断されやすい。このため、ガラス繊維として再加工できないものが多くなり、真空断熱材として用いることが可能な長さのガラス繊維の回収率が低下するという課題がある。   However, in the configuration as described above, there is a problem that all materials are mixed due to crushing, and it takes time and labor to separate and separate. Moreover, the core material, which is the main material of the vacuum heat insulating material, is fragile because it is glass fiber, and the fiber length is short and is easily cut. For this reason, the thing which cannot be reprocessed as glass fiber increases, and there exists a subject that the collection | recovery rate of the glass fiber of the length which can be used as a vacuum heat insulating material falls.

このような点から、樹脂製内箱と金属性外箱との間に発泡断熱材を充填した構成を有する冷蔵庫において、金属製外箱の背面に開口部を設け、この開口部を別の蓋材により封口し、発泡断熱材が金属性外箱の内壁に設けられた潤滑性剥離層を介して設けられ、冷蔵庫の解体時には金属性外箱と樹脂製内箱とを接続している領域部を切断した後、開口部からピストンにより金属性外箱と発泡断熱材とを分離する方法が示されている（例えば、特許文献１）。
特開平０７−５２１７０号公報 From such a point, in a refrigerator having a configuration in which a foam heat insulating material is filled between a resin inner box and a metal outer box, an opening is provided on the back surface of the metal outer box, and the opening is provided as another lid. Sealed by the material, the foam insulation is provided through the lubrication release layer provided on the inner wall of the metal outer box, and the region that connects the metal outer box and the resin inner box when the refrigerator is disassembled A method of separating the metallic outer box and the foamed heat insulating material from the opening by a piston after cutting is disclosed (for example, Patent Document 1).
Japanese Patent Application Laid-Open No. 07-52170

上記の例においては、冷蔵庫の金属性外箱と樹脂製内箱とは特定の場所で接続する必要があり、冷蔵庫としての設計に制約を受ける。また、樹脂製内箱に接着された発泡断熱材と樹脂製内箱の樹脂との分離は一括して粉砕し、比重選別により分離している。このため、発泡断熱材をそのまま再び再利用することができない。   In the above example, it is necessary to connect the metallic outer box and the resin inner box of the refrigerator at a specific place, and the design as a refrigerator is restricted. In addition, the foamed heat insulating material bonded to the resin inner box and the resin in the resin inner box are collectively pulverized and separated by specific gravity sorting. For this reason, the foam insulation cannot be reused again as it is.

本発明は上記課題を解決するものであり、真空断熱材のガラス繊維の形態と、純度を保持した状態で回収して、真空断熱材をそのまま再利用する方法を提供することを目的とする。   This invention solves the said subject, and it aims at providing the method of collect | recovering the form and the purity of the glass fiber of a vacuum heat insulating material, and reusing a vacuum heat insulating material as it is.

本発明の真空断熱材の解体回収方法は、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、冷蔵庫内に面する内板と、冷蔵庫の外部に面する外板と、この内板と外板との間に装着された真空断熱材および充填断熱材とを含み、外板面上に真空断熱材の装着位置を示すマークを設けた構成を有し、冷蔵庫を解体回収するときに、マークに沿って外板を切断して真空断熱材を取り出す方法からなる。   The method for dismantling and recovering a vacuum heat insulating material according to the present invention includes a wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the inside of the refrigerator, and an outer surface facing the outside of the refrigerator. A refrigerator including a plate, a vacuum heat insulating material and a filling heat insulating material mounted between the inner plate and the outer plate, and having a mark indicating a mounting position of the vacuum heat insulating material on the outer plate surface. When dismantling and collecting, the outer plate is cut along the mark to take out the vacuum heat insulating material.

これにより、マークに従い正確に切断することで、真空断熱材を損傷することなく容易に回収することができ、安価に再利用を可能にすることができる。なお、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫としては、通常の冷蔵庫、冷凍庫または冷凍冷蔵庫等を含む。   Thus, by accurately cutting according to the mark, the vacuum heat insulating material can be easily recovered without being damaged, and can be reused at low cost. In addition, as a refrigerator which has at least 1 function of refrigeration and freezing, a normal refrigerator, a freezer, a freezer refrigerator, etc. are included.

また、本発明の真空断熱材の解体回収方法は、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、冷蔵庫内に面する内板と、冷蔵庫の外部に面する外板と、この内板と外板との間に装着された真空断熱材および充填断熱材とを含み、真空断熱材の装着位置にあわせて外板面上に他の部分より板厚が薄くなるように凹溝を設けた構成を有し、冷蔵庫を解体回収するときに、この凹溝部に沿って外板を破断除去して真空断熱材を取り出す方法からなる。   Further, in the vacuum heat insulating material dismantling and recovery method of the present invention, the wall portion and the door portion constituting the refrigerator having at least one function of refrigeration and freezing, the inner plate facing the refrigerator, and the exterior of the refrigerator And a vacuum heat insulating material and a filling heat insulating material attached between the inner plate and the outer plate, and the thickness of the outer heat insulating plate is larger than that of other parts on the outer plate surface according to the mounting position of the vacuum heat insulating material. When the refrigerator is disassembled and recovered, the outer plate is broken and removed along the groove to take out the vacuum heat insulating material.

これにより、破砕や裁断を行うときのように、騒音や粉塵の発生を少なくして、外板の除去が可能であり、真空断熱材への損傷も少なくして回収でき、再利用ができるという作用を有する。   As a result, noise and dust generation can be reduced as in crushing and cutting, and the outer plate can be removed, and damage to the vacuum insulation can be reduced and recovered and reused. Has an effect.

また、本発明の真空断熱材の解体回収方法は、マークまたは凹溝が真空断熱材と外板との接合部または接合部位置より内周側の外板面上に設けられている方法からなる。真空断熱材と外板との接合を真空断熱材の接着面全体で接合せずに、真空断熱材の周辺部だけで行い、外板の切断は接合部または接合部より内周側にて行うことにより、真空断熱材と外板との分離が容易になるとともに、分離するときの真空断熱材の損傷も防止でき再利用を容易にすることができる。   Further, the vacuum heat insulating material dismantling and recovery method of the present invention comprises a method in which the mark or the groove is provided on the outer plate surface on the inner peripheral side from the joint portion or the position of the joint portion between the vacuum heat insulating material and the outer plate. . Do not join the vacuum insulation material to the outer plate over the entire adhesive surface of the vacuum insulation material, but only at the periphery of the vacuum insulation material, and cut the outer plate on the inner peripheral side of the joint or joint. This facilitates the separation of the vacuum heat insulating material and the outer plate, and also prevents the vacuum heat insulating material from being damaged during the separation, thereby facilitating reuse.

また、本発明の真空断熱材の解体回収方法は、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、冷蔵庫内に面する内板と、冷蔵庫の外部に面する外板と、この内板と外板との間に装着された真空断熱材または真空断熱材と充填断熱材の一方を含む構成を有し、冷蔵庫を解体回収するときに、外板から真空断熱材の第１外皮まで開口部を設け、開口部より真空断熱材の芯材を吸引回収する方法からなる。   Further, in the vacuum heat insulating material dismantling and recovery method of the present invention, the wall portion and the door portion constituting the refrigerator having at least one function of refrigeration and freezing, the inner plate facing the refrigerator, and the exterior of the refrigerator And a vacuum insulating material mounted between the inner plate and the outer plate, or one of the vacuum insulating material and the filling insulating material, and when the refrigerator is dismantled and recovered, the vacuum is removed from the outer plate. The method includes a method in which an opening is provided up to the first outer skin of the heat insulating material, and the core material of the vacuum heat insulating material is sucked and collected from the opening.

これにより、真空断熱材の主材であるガラス繊維やポリエステル樹脂繊維で集綿体に形成された芯材を、不純物の混入を防ぎ、純度の高い状態で効率よく回収して再利用ができるため、コストダウンも可能である。   As a result, the core material formed in the cotton collection with the glass fiber or polyester resin fiber, which is the main material of the vacuum heat insulating material, can be prevented from being mixed with impurities and efficiently recovered and reused in a high purity state. Cost reduction is also possible.

また、本発明の真空断熱材の解体回収方法は、吸引回収する開口部の周辺に空気導入孔を一つ以上設けた方法からなる。真空断熱材の芯材の吸引効果をあげるために、空気導入孔より空気を吸い込み、真空断熱材のガラス繊維やポリエステル樹脂繊維で集綿体に形成された芯材と空気とを同時に吸い込むことで、吸引効果を高めて作業性を向上させることができる。   In addition, the vacuum heat insulating material dismantling and recovery method of the present invention includes a method in which one or more air introduction holes are provided around the opening for suction and recovery. In order to increase the suction effect of the vacuum insulation core material, air is sucked from the air introduction hole, and the core material formed on the cotton collection body with the vacuum insulation glass fiber and polyester resin fiber is sucked at the same time. The workability can be improved by increasing the suction effect.

また、本発明の真空断熱材の解体回収方法は、吸引回収する開口部より移動自在の吸引ノズルを差し込み、真空断熱材の芯材を吸引回収する方法からなる。真空断熱材の内部全体に吸引ノズルを移動させて内部に存在する真空断熱材の芯材を吸引することで、ガラス繊維やポリエステル樹脂繊維で集綿体に形成された芯材の純度を損なうことなく容易に回収が行える。   The vacuum heat insulating material dismantling and recovery method of the present invention comprises a method of sucking and recovering the core material of the vacuum heat insulating material by inserting a movable suction nozzle through the opening for suction and recovery. Impairing the purity of the core material formed in the cotton collection with glass fiber or polyester resin fiber by moving the suction nozzle inside the vacuum heat insulating material and sucking the vacuum heat insulating material core material present inside And can be easily collected.

また、本発明の真空断熱材の解体回収方法は、空気導入孔より加圧空気を吹き込みながら、芯材の吸引回収を行う方法からなる。加圧空気を吹き込むことによりガラス繊維やポリエステル樹脂繊維が集綿体で形成された芯材を吸引しやすくできる。また、加圧空気に押されて芯材の吸引口方向への移動を促し、吸引効果を高めることができるので、作業効率と回収効率とを向上させることができる。   Further, the vacuum heat insulating material dismantling and recovery method of the present invention comprises a method of sucking and recovering the core material while blowing pressurized air from the air introduction hole. By blowing the pressurized air, it is possible to easily suck the core material in which the glass fiber or the polyester resin fiber is formed of the cotton collection body. In addition, since it is pushed by the pressurized air to promote the movement of the core member in the direction of the suction port and the suction effect can be enhanced, the work efficiency and the recovery efficiency can be improved.

また、本発明の真空断熱材の解体回収方法は、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、冷蔵庫内に面する内板と、冷蔵庫の外部に面する外板と、この内板と外板との間に装着され２重に真空包装された真空断熱材または２重に真空包装された真空断熱材と充填断熱材とにより構成され、冷蔵庫を解体回収するときに、真空断熱材の非接着部が設けられている位置の外板と内板とを切断後、２重に真空包装された真空断熱材の第２外皮を開封し、第２外皮による真空包装を解除し、かつ第１外皮による真空包装の真空を保持した状態で、真空断熱材を取り出す方法からなる。   Further, in the vacuum heat insulating material dismantling and recovery method of the present invention, the wall portion and the door portion constituting the refrigerator having at least one function of refrigeration and freezing, the inner plate facing the refrigerator, and the exterior of the refrigerator Disassemble the refrigerator. The refrigerator is disassembled by a vacuum insulating material that is installed between the inner plate and the outer plate and vacuum-packed in double vacuum packaging, or vacuum vacuum-insulating material that is double-vacuum packed and filling heat insulating material. When collecting, after cutting the outer plate and the inner plate at the position where the non-adhesive part of the vacuum heat insulating material is provided, the second outer shell of the vacuum heat insulating material double-packed in vacuum is opened, and the second outer shell is opened. And the vacuum heat insulating material is taken out in a state in which the vacuum packaging by the first outer skin is released.

これにより、真空包装された真空断熱材の第１外皮が壁部の外板と充填断熱材とに直接接触しないため、解体するときに分離を容易にできる。また、作業中に第２外皮に破損が生じても、真空断熱材の真空が破られるという不良発生を低減できる。さらに、第１外皮と第２外皮との間に空気を圧入することで充填断熱材を押し広げ、解体分離をより容易にすることもできる。   Thereby, since the 1st outer skin of the vacuum heat insulating material vacuum-packed does not directly contact the outer skin of the wall portion and the filling heat insulating material, separation can be facilitated when disassembling. In addition, even if the second outer skin breaks during the operation, it is possible to reduce the occurrence of a defect that the vacuum of the vacuum heat insulating material is broken. Furthermore, the filling heat insulating material can be expanded by pressurizing the air between the first and second skins, and disassembly and separation can be made easier.

また、本発明の真空断熱材の解体回収方法は、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、冷蔵庫内に面する内板と、冷蔵庫の外部に面する外板と、この内板と外板との間に装着された真空断熱材および充填断熱材とにより構成され、冷蔵庫を解体回収するときに、冷蔵庫の壁部と扉部の少なくとも一方を冷蔵庫から切断して壁部または扉部の各辺の断面部を露出させた後、線状の加熱手段を内板と外板との間の充填断熱材が取り付けられた部分に配置し、充填断熱材を加熱溶融させながら切断して真空断熱材を取り出す方法からなる。   Further, in the vacuum heat insulating material dismantling and recovery method of the present invention, the wall portion and the door portion constituting the refrigerator having at least one function of refrigeration and freezing, the inner plate facing the refrigerator, and the exterior of the refrigerator And a vacuum heat insulating material and a filling heat insulating material mounted between the inner plate and the outer plate. When disassembling and recovering the refrigerator, at least one of the wall portion and the door portion of the refrigerator is stored in the refrigerator. After exposing the cross section of each side of the wall or door, the linear heating means is placed in the part where the filling insulation between the inner plate and the outer plate is attached, and the filling insulation It consists of a method of taking out the vacuum heat insulating material by cutting while melting the material by heating.

これにより、加熱手段の使用が容易になり、真空断熱材を固定する接着剤や充填断熱材を容易に加熱切断できる。また、加熱切断のため騒音や粉塵の発生を少なくし、作業性と作業環境の向上をはかることができる。   Thereby, use of a heating means becomes easy and the adhesive agent and filling heat insulating material which fix a vacuum heat insulating material can be heat-cut easily. In addition, noise and dust can be reduced due to heat cutting, and workability and working environment can be improved.

また、本発明の真空断熱材の解体回収方法は、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、冷蔵庫内に面する内板と、冷蔵庫の外部に面する外板と、この内板と外板との間に装着された真空断熱材または真空断熱材と充填断熱材とを含み、真空断熱材は第１外皮の密封糊代を大きくし、外板に対して密封糊代の最外周部分で接合した構造を有し、冷蔵庫を解体回収するときに、外板とともに密封糊代の接合部または接合部より内周側の第１外皮の密封糊代を切断して、真空断熱材の真空状態を保持した状態で取り出す方法からなる。   Further, in the vacuum heat insulating material dismantling and recovery method of the present invention, the wall portion and the door portion constituting the refrigerator having at least one function of refrigeration and freezing, the inner plate facing the refrigerator, and the exterior of the refrigerator And a vacuum heat insulating material or a vacuum heat insulating material and a filling heat insulating material mounted between the inner plate and the outer plate, and the vacuum heat insulating material increases a sealing margin of the first outer skin, When the refrigerator is disassembled and recovered, the sealing paste margin is joined together with the outer glue plate or the first outer skin sealing margin on the inner circumference side from the joining portion. Is cut out and taken out in a state where the vacuum state of the vacuum heat insulating material is maintained.

これにより、真空断熱材の真空状態を保持したまま回収するので再使用が容易になる。再使用のときは、切断により小さくなった真空断熱材の最外周部分で固定すれば、真空を破損することなく複数回の再使用が可能となり、省資源化やコストダウンが可能となる。   Thereby, since it collect | recovers, maintaining the vacuum state of a vacuum heat insulating material, reuse becomes easy. At the time of reuse, if it is fixed at the outermost peripheral portion of the vacuum heat insulating material that has been reduced by cutting, it can be reused a plurality of times without damaging the vacuum, thereby saving resources and reducing costs.

また、本発明の真空断熱材の解体回収方法は、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、冷蔵庫内に面する内板と、冷蔵庫の外部に面する外板と、この内板と外板との間に装着された真空断熱材とを含み、冷蔵庫を解体回収するときに、扉部を除いた冷蔵庫の壁部の上面部または底面部を切断した後、内板と外板との間に装着された真空断熱材の真空を破壊することなく、真空断熱材を回収する方法からなる。   Further, in the vacuum heat insulating material dismantling and recovery method of the present invention, the wall portion and the door portion constituting the refrigerator having at least one function of refrigeration and freezing, the inner plate facing the refrigerator, and the exterior of the refrigerator Cutting the top or bottom of the wall of the refrigerator except for the door when the refrigerator is dismantled and recovered, including the outer plate to be removed and the vacuum heat insulating material attached between the inner and outer plates. Thereafter, the vacuum heat insulating material is recovered without breaking the vacuum of the vacuum heat insulating material mounted between the inner plate and the outer plate.

これにより、上面または底面を除去するように冷蔵庫を切断することで、真空断熱材の真空を破壊することなく、真空断熱材を容易に回収することができる。このとき、真空断熱材の周囲に充填断熱材を用いない場合には、この切断面部より真空断熱材を引き出すようにして回収すれば、真空断熱材の回収が極めて容易となり、作業効率の向上とコストダウンがはかられる。   Thereby, a vacuum heat insulating material can be easily collect | recovered, without destroying the vacuum of a vacuum heat insulating material by cut | disconnecting a refrigerator so that an upper surface or a bottom surface may be removed. At this time, in the case of not using the filling heat insulating material around the vacuum heat insulating material, if the vacuum heat insulating material is recovered by pulling out from the cut surface portion, the recovery of the vacuum heat insulating material becomes extremely easy and the work efficiency is improved. Cost can be reduced.

また、本発明の真空断熱材の解体回収方法は、冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、冷蔵庫内に面する内板と、冷蔵庫の外部に面する外板と、この内板と外板との間に装着された真空断熱材と充填断熱材とを含み、真空断熱材は片側または両側に遮蔽物を介して外板および充填断熱材に固定された構成を有し、冷蔵庫を解体回収するときに、少なくとも外板を切断後、真空断熱材と遮蔽物を分離しながら真空断熱材を取り出す方法からなる。   Further, in the vacuum heat insulating material dismantling and recovery method of the present invention, the wall portion and the door portion constituting the refrigerator having at least one function of refrigeration and freezing, the inner plate facing the refrigerator, and the exterior of the refrigerator And a vacuum heat insulating material and a filling heat insulating material mounted between the inner plate and the outer plate. The vacuum heat insulating material is fixed to the outer plate and the filling heat insulating material through a shield on one side or both sides. When the refrigerator is disassembled and recovered, the vacuum heat insulating material is taken out while separating the vacuum heat insulating material and the shield after cutting at least the outer plate.

これにより、充填断熱材と真空断熱材との接合や、充填断熱材により真空断熱材が冷蔵庫の内板や外板に接合されることを防止できるので真空断熱材の回収時の破損防止と回収の作業効率を改善できる。なお、真空断熱材の片側または両側に設ける遮蔽物としては、紙や段ボール等を用いることができる。   As a result, it is possible to prevent the vacuum insulation material from being joined to the inner plate and the outer plate of the refrigerator by the joining of the filling heat insulating material and the vacuum heat insulating material, and the filling heat insulating material. Work efficiency can be improved. Note that paper, cardboard, or the like can be used as the shield provided on one side or both sides of the vacuum heat insulating material.

さらに、本発明の真空断熱材は、真空断熱材の芯材を第１外皮で真空包装した第１の真空包装と、第１の真空包装をさらに第２外皮で真空包装した構成からなる。２重に真空包装することで、冷蔵庫の組み立て時や解体時等の真空断熱材の取り扱い時に発生する第１の真空包装にまでいたる破損を大幅に低減できる。また、外板や充填断熱材と接合している第２外皮を破り、第１の真空包装の真空状態を保持したまま真空断熱材を損傷なく回収できるので、再利用が容易である。   Furthermore, the vacuum heat insulating material of this invention consists of the 1st vacuum packaging which vacuum-packed the core material of the vacuum heat insulating material with the 1st outer skin, and the structure which vacuum-packaged the 1st vacuum packaging further with the 2nd outer skin. By double vacuum packaging, damage to the first vacuum packaging that occurs when handling the vacuum heat insulating material during the assembly or disassembly of the refrigerator can be greatly reduced. In addition, the second outer skin joined to the outer plate and the filled heat insulating material is broken, and the vacuum heat insulating material can be recovered without damage while maintaining the vacuum state of the first vacuum packaging, so that it can be easily reused.

さらに、本発明の真空断熱材は、真空断熱材の芯材と、芯材を真空包装する第１外皮とからなり、第１外皮は一方の面側が接着性を有し、他方の面側は非接着性を有している構成からなる。一方の面側で真空断熱材と壁部の外板との接着を行い、他方の面側は充填断熱材とは非接着状態とすることにより、充填断熱材と真空断熱材とを容易に分離できる。この結果、回収時または回収後、真空断熱材と充填断熱材の分離に要する工数を大幅に低減できる。   Furthermore, the vacuum heat insulating material of the present invention comprises a core material of the vacuum heat insulating material and a first outer skin that vacuum-wraps the core material, and the first outer skin has adhesiveness on one surface side, It consists of the structure which has non-adhesiveness. Adhesion between the vacuum heat insulating material and the outer skin of the wall is performed on one surface side, and the other surface side is not bonded to the filled heat insulating material, thereby easily separating the filled heat insulating material from the vacuum heat insulating material. it can. As a result, the number of steps required to separate the vacuum heat insulating material and the filled heat insulating material can be significantly reduced during or after recovery.

さらに、本発明の真空断熱材は、平坦に形成した真空断熱材の折り曲げを行う位置に、加圧または加熱加圧により凹部を形成した構成からなる。真空断熱材の折り曲げを必要とする部分に、平板な状態で、他の部分より薄くなる凹部を設けることにより折り曲げが容易になる。また、折り曲げて装着するまで、または回収後の保管は、平板状で保管が可能であり、保管場所が小さくてよく、コストダウンもはかられる。   Furthermore, the vacuum heat insulating material of this invention consists of a structure which formed the recessed part by pressurization or heat pressurization in the position which bends the vacuum heat insulating material formed flat. Bending is facilitated by providing a concave portion that is thinner than other portions in a flat state in a portion that requires bending of the vacuum heat insulating material. Further, the storage until folded or mounted or after collection can be stored in a flat plate shape, the storage space can be small, and the cost can be reduced.

さらに、本発明の真空断熱材は、真空断熱材の芯材と、芯材を真空包装する第１外皮と、第１外皮の内側に密着して設けられた弾性体部または弾性体膜とからなる構成である。内部を真空にするための脱気針を除去しても、空気が流入する前に脱気針孔を弾性体部または弾性体膜により容易に塞ぐことができる。これは弾性体部を第１外皮の一部または弾性体膜を第１外皮の全面に形成することで、真空断熱材の作製や破損した第１外皮の補修を大気圧下で行うことが可能となり、特殊な機器を必要とせず、作業性もよく、省資源化やコストダウンに極めて大きな効果がある。   Furthermore, the vacuum heat insulating material of the present invention includes a core material of the vacuum heat insulating material, a first outer skin for vacuum-packing the core material, and an elastic body portion or an elastic body film provided in close contact with the inner side of the first outer skin. It is the composition which becomes. Even if the deaeration needle for evacuating the inside is removed, the deaeration needle hole can be easily closed by the elastic body portion or the elastic body film before the air flows in. This is because the elastic body part is formed on a part of the first skin or the elastic film is formed on the entire surface of the first skin, so that the vacuum insulation material can be produced and the damaged first skin can be repaired under atmospheric pressure. Thus, no special equipment is required, the workability is good, and there are extremely great effects in resource saving and cost reduction.

以上のように本発明は、冷蔵庫の外板に真空断熱材の接着位置を示すマークあるいは凹溝部を形成しておき、マークを基準にして外板を切断、あるいは凹溝部で外板を破断して剥離する方法等により、真空断熱材あるいは芯材を損傷や不純物の混入なく回収し、再利用を可能とすることで省資源化を実現し、環境汚染防止に貢献するという大きな効果を奏する。   As described above, according to the present invention, a mark or a groove portion indicating the adhesion position of the vacuum heat insulating material is formed on the outer plate of the refrigerator, and the outer plate is cut based on the mark or the outer plate is broken at the groove portion. In this way, the vacuum insulation material or the core material can be recovered without being damaged or contaminated by the peeling method, etc., and can be reused, realizing resource saving and contributing to the prevention of environmental pollution.

以下本発明の実施の形態について、図面を用いて詳細に説明する。なお、同一要素については同一符号を付している。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected about the same element.

（第１の実施の形態）
本発明の第１の実施の形態にかかる真空断熱材の解体回収方法について、図１を用いて説明する。本実施の形態では、冷蔵庫の壁部に真空断熱材の装着位置を示すマークを形成し、このマークに沿って壁部の外板を切断して真空断熱材を取り出す方法を説明する。図１（Ａ）は冷蔵庫１の外観を示す斜視図である。図１（Ｂ）と図１（Ｃ）とは本実施の形態の真空断熱材の解体回収方法を説明するための図で、図１（Ｂ）は冷蔵庫１の壁部２を示し、図１（Ｃ）は壁部２の断面を示している。 (First embodiment)
A method for dismantling and collecting a vacuum heat insulating material according to the first embodiment of the present invention will be described with reference to FIG. In the present embodiment, a method of forming a mark indicating the mounting position of the vacuum heat insulating material on the wall portion of the refrigerator and cutting the outer plate of the wall portion along the mark to take out the vacuum heat insulating material will be described. FIG. 1A is a perspective view showing the appearance of the refrigerator 1. 1 (B) and 1 (C) are diagrams for explaining a method for dismantling and collecting vacuum heat insulating material according to the present embodiment, and FIG. 1 (B) shows a wall portion 2 of the refrigerator 1, and FIG. (C) shows a cross section of the wall 2.

図１（Ａ）において、冷蔵庫１は、前面には扉部３があり、他の面は壁部２で囲われ、内部の温度維持ができるように構成されている。扉部３と壁部２とは、鉄板等で形成される外板６と、樹脂で形成される内板７と、これらの間にポリエステル樹脂繊維やガラス繊維を芯材１７として形成されている真空断熱材４と、発泡ウレタン樹脂の充填断熱材８とを有して構成されている。なお、真空断熱材４には、図１（Ｃ）に示すように密封糊代９が周囲に設けられている。   In FIG. 1 (A), the refrigerator 1 has the door part 3 in the front surface, and the other surface is enclosed by the wall part 2, and it is comprised so that an internal temperature can be maintained. The door portion 3 and the wall portion 2 are formed as an outer plate 6 formed of an iron plate or the like, an inner plate 7 formed of resin, and a polyester resin fiber or glass fiber as a core material 17 therebetween. It has the vacuum heat insulating material 4 and the filling heat insulating material 8 of a urethane foam resin, and is comprised. In addition, as shown in FIG.1 (C), the sealing heat allowance 9 is provided in the vacuum heat insulating material 4 at the circumference | surroundings.

芯材１７は繊維の集綿状態または繊維を結合材で固めて繊維がバラバラにならない結合状態のいずれかの形態で用いる。真空断熱材４は、図１（Ｂ）に点線で示すように壁部２の周囲より所定の間隔をあけて、かつ移動や偏りが生じないように外板６と内板７との間において、外板６に接着固定されている。さらに、充填断熱材８を注入して、壁部２の断熱性を向上させることができる。この充填断熱材８は用いても用いなくてもよいが、用いない方が真空断熱材４の回収は容易となる。この構成は扉部３も同様である。   The core material 17 is used in any form of a collected state of fibers or a bonded state in which the fibers are hardened with a binder and the fibers do not fall apart. The vacuum heat insulating material 4 is provided between the outer plate 6 and the inner plate 7 so as to be spaced apart from the periphery of the wall 2 as shown by a dotted line in FIG. The outer plate 6 is bonded and fixed. Furthermore, the heat insulating property of the wall part 2 can be improved by injecting the filling heat insulating material 8. The filled heat insulating material 8 may or may not be used, but the vacuum heat insulating material 4 can be easily recovered if not used. This configuration is the same for the door 3.

図１（Ａ）に示すように本実施の形態では、冷蔵庫１の解体切断時に真空断熱材４を損傷しないように、外板６の外部表面に切断位置を示すマーク５が形成されている。このマーク５は、真空断熱材４の接着固定位置の外側の密封糊代９の範囲または真空断熱材４を避けた位置に形成されている。このようにマーク５を設ければ、このマーク５を結ぶ線上を切断することで、真空断熱材４の真空包装を損傷することなく壁部２を切断できる。   As shown in FIG. 1A, in the present embodiment, a mark 5 indicating a cutting position is formed on the outer surface of the outer plate 6 so as not to damage the vacuum heat insulating material 4 when the refrigerator 1 is disassembled and cut. This mark 5 is formed in the range of the sealing glue margin 9 outside the adhesion fixing position of the vacuum heat insulating material 4 or at a position avoiding the vacuum heat insulating material 4. If the mark 5 is provided as described above, the wall 2 can be cut without damaging the vacuum packaging of the vacuum heat insulating material 4 by cutting the line connecting the marks 5.

切断後は既知の任意の方法で、外板６、内板７および充填断熱材８を除去すれば、真空断熱材４を回収することができる。なお、充填断熱材８を用いない構成の場合は内板７の切断をしなくても、外板６と真空断熱材４を冷蔵庫１より分離することができる。   After cutting, the vacuum heat insulating material 4 can be recovered by removing the outer plate 6, the inner plate 7 and the filling heat insulating material 8 by any known method. In addition, in the structure which does not use the filling heat insulating material 8, the outer plate 6 and the vacuum heat insulating material 4 can be separated from the refrigerator 1 without cutting the inner plate 7.

マーク５の形成方法や形状は、解体切断時に識別や判別ができるものであれば特に限定はない。印刷や刻印等の既知の手段で形成すればよい。ただし、扉部３のように使用者が常時目にしやすい個所においては、マーク５のデザインや構造等について考慮することも必要である。   The formation method and shape of the mark 5 are not particularly limited as long as they can be identified and discriminated at the time of dismantling and cutting. What is necessary is just to form by known means, such as printing and a stamp. However, it is also necessary to consider the design, structure, etc. of the mark 5 at a place such as the door portion 3 that is easily visible to the user at all times.

切断手段についても特に限定はなく、切断砥石、切断のこぎり、レーザーまたは高圧水等の既知の設備を用いることができる。いずれの切断手段を用いても、真空断熱材４の真空包装を破壊しないように、密封糊代９の範囲または真空断熱材４を避けた位置で切断するが、これはマーク５により容易に判断できる。切断時においては、冷蔵庫１の全体を回転させれば容易に各面の切断加工ができて、外板６、内板７および充填断熱材８を除去し、真空断熱材４を取り出すことができる。   The cutting means is not particularly limited, and known equipment such as a cutting grindstone, a cutting saw, a laser, or high-pressure water can be used. Whichever cutting means is used, cutting is performed within the range of the sealing glue margin 9 or at a position avoiding the vacuum heat insulating material 4 so as not to destroy the vacuum packaging of the vacuum heat insulating material 4. it can. At the time of cutting, if the entire refrigerator 1 is rotated, cutting of each surface can be easily performed, and the outer plate 6, the inner plate 7 and the filling heat insulating material 8 can be removed, and the vacuum heat insulating material 4 can be taken out. .

図２は、本実施の形態の真空断熱材の解体回収方法の変形例を示す図であり、マーク５の位置を真空断熱材４の外板６との接着位置より一定距離を隔てて内周側に設ける方法である。本変形例では、真空断熱材４と外板６の接着は、真空断熱材４の最外周部分に接着部を設定して行い、切断するためのマーク５は、接着部より内周側の位置に設ける。このように配置しておけば、冷蔵庫１の解体時に図１（Ｂ）で説明した方法と同じ方法により切断すると容易に外板６と真空断熱材４とが分離される。   FIG. 2 is a view showing a modified example of the vacuum heat insulating material dismantling and recovery method of the present embodiment, in which the position of the mark 5 is separated from the bonding position of the vacuum heat insulating material 4 with the outer plate 6 by a certain distance. It is a method of providing on the side. In this modification, the vacuum heat insulating material 4 and the outer plate 6 are bonded by setting an adhesive portion at the outermost peripheral portion of the vacuum heat insulating material 4, and the mark 5 for cutting is positioned on the inner peripheral side from the adhesive portion. Provided. If it arrange | positions in this way, the outer plate | board 6 and the vacuum heat insulating material 4 will be isolate | separated easily if it cut | disconnects by the same method as the method demonstrated in FIG.

この工程を、図２を用いて順を追って説明する。図２（Ａ）は、図１（Ｂ）と同様に壁部２の表面にマーク５が形成された状態を示す。図２（Ａ）からわかるように、マーク５は接着部より内周側の位置に設けられている。最初に、本変形例の壁部２の断面構造について説明する。図２（Ｂ）は真空断熱材４の断面形状を示すが、真空断熱材４は密封糊代９を有している。図２（Ｃ）は、真空断熱材４が接着剤１１により外板６に接着された状態を示す。この接着時には、壁部２内において移動や偏りのないように外板６と接着される。接着剤１１の幅寸法αをあらかじめ定めておき、マーク５の位置は幅寸法αを考慮して形成する。   This process will be described step by step with reference to FIG. FIG. 2A shows a state in which the mark 5 is formed on the surface of the wall portion 2 as in FIG. As can be seen from FIG. 2A, the mark 5 is provided at a position on the inner peripheral side from the bonding portion. Initially, the cross-sectional structure of the wall part 2 of this modification is demonstrated. FIG. 2B shows a cross-sectional shape of the vacuum heat insulating material 4, and the vacuum heat insulating material 4 has a sealing paste 9. FIG. 2C shows a state in which the vacuum heat insulating material 4 is bonded to the outer plate 6 with the adhesive 11. At the time of bonding, the outer plate 6 is bonded so that there is no movement or bias in the wall portion 2. The width dimension α of the adhesive 11 is determined in advance, and the position of the mark 5 is formed in consideration of the width dimension α.

以上のような壁部２の構成を有する冷蔵庫を解体するときには、図２（Ｄ）に示すように、切断部１２において切断すると密封糊代９の一部が切断されるが、真空包装は破られることはない。また、図２（Ｅ）に示すように、密封糊代９は初期状態より短くなっているが、まだ一部が残存している。したがって、図２（Ｆ）のように真空断熱材４は密封糊代９が初期状態より短くなった形状で回収できる。   When disassembling the refrigerator having the configuration of the wall portion 2 as described above, as shown in FIG. 2D, when the cutting portion 12 cuts, a part of the sealing margin 9 is cut, but the vacuum packaging is broken. It will never be done. Further, as shown in FIG. 2E, the sealing margin 9 is shorter than the initial state, but a part still remains. Therefore, as shown in FIG. 2 (F), the vacuum heat insulating material 4 can be recovered in a shape in which the sealing margin 9 is shorter than the initial state.

上記の変形例の説明では、密封糊代９を一部残して真空状態を維持したまま切断する方法について述べたが、本発明はこれに限定されない。例えば、密封糊代９が小さい場合、真空包装部分を切断して回収してもよい。この場合は再使用に際しては、再度真空包装が必要である。   In the above description of the modification, the method of cutting while maintaining a vacuum state while leaving a part of the sealing margin 9 has been described, but the present invention is not limited to this. For example, when the sealing margin 9 is small, the vacuum packaging portion may be cut and collected. In this case, vacuum packaging is required again when reused.

（第２の実施の形態）
本発明の第２の実施の形態にかかる真空断熱材の解体回収方法について、図３と図４とを用いて説明する。本実施の形態では、冷蔵庫の外板に、外板の切断範囲となる位置に凹溝を設け、この凹溝に沿って外板を破断除去して真空断熱材を回収する方法である。 (Second Embodiment)
A method for dismantling and recovering the vacuum heat insulating material according to the second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the outer plate of the refrigerator is provided with a concave groove at a position that is a cutting range of the outer plate, and the outer plate is broken and removed along the concave groove to recover the vacuum heat insulating material.

図３（Ａ）は冷蔵庫１の斜視図である。図３（Ｂ）と図３（Ｃ）は、冷蔵庫１の壁部２にそれぞれ異なる凹溝１３を形成した状態を示す。また、図４（Ａ）から図４（Ｄ）までは、壁部２に形成する凹溝１３の断面形状の一例を示す。図４（Ａ）は外板６の片面に略コの字形状に形成してもよいし、図４（Ｂ）に示すように略Ｈ字形状に形成してもよい。さらには、図４（Ｃ）や図４（Ｄ）に示すように、片面にのみＶ字形状に形成してもよいし、両面にＶ字形状を形成してもよい。凹溝１３の形状や寸法は、用いる材料、形成方法、または解体等の条件設定により最適な構成があるので、あらかじめ実験等により求めておくことも有効である。さらに、この凹溝１３は、プレス法、レーザー法またはエッチング法等、既知の方法で加工できる。なお、本実施の形態では、冷蔵庫１の構成および構成材料は、第１の実施の形態と同様としている。   FIG. 3A is a perspective view of the refrigerator 1. FIG. 3B and FIG. 3C show a state in which different concave grooves 13 are formed in the wall portion 2 of the refrigerator 1. 4A to 4D show an example of a cross-sectional shape of the concave groove 13 formed in the wall portion 2. FIG. 4A, the outer plate 6 may be formed in a substantially U shape on one side, or may be formed in a substantially H shape as shown in FIG. 4B. Furthermore, as shown in FIG. 4C or FIG. 4D, it may be formed in a V shape only on one side, or may be formed on both sides. Since the shape and dimensions of the concave groove 13 have an optimum configuration depending on the material used, the forming method, or the condition setting such as dismantling, it is also effective to obtain it beforehand through experiments or the like. Further, the groove 13 can be processed by a known method such as a press method, a laser method, or an etching method. In the present embodiment, the configuration and constituent materials of the refrigerator 1 are the same as those in the first embodiment.

図３（Ｂ）は、壁部２の内部に装着されている真空断熱材４を容易に取り出せるように、真空断熱材の大きさにあわせて外板６に凹溝１３を形成した状態を示す。このように凹溝１３を形成した外板６に、真空断熱材４を接着し内板７と組み合わせて、冷蔵庫１の壁部２が形成されている。冷蔵庫の解体時は、図３（Ｂ）に示すように、凹溝１３の一部（図３（Ｂ）中では角部）に孔あけ等の既知の方法を用い、外板６の一部を引き剥がして剥離部１４を形成する。   FIG. 3B shows a state in which the groove 13 is formed in the outer plate 6 in accordance with the size of the vacuum heat insulating material so that the vacuum heat insulating material 4 mounted inside the wall portion 2 can be easily taken out. . The wall portion 2 of the refrigerator 1 is formed by bonding the vacuum heat insulating material 4 to the outer plate 6 in which the concave grooves 13 are formed in this way and combining with the inner plate 7. When the refrigerator is disassembled, as shown in FIG. 3 (B), a known method such as drilling is used in a part of the groove 13 (corner in FIG. 3 (B)), and a part of the outer plate 6 is used. Is peeled off to form the peeling portion 14.

つぎに、この剥離部１４を矢印に示す方向に引っ張ることにより、強度の弱い凹溝１３に沿って外板６が破断して壁部２より除去でき、真空断熱材４を取り出すことができる。   Next, by pulling the peeling portion 14 in the direction indicated by the arrow, the outer plate 6 can be broken and removed from the wall portion 2 along the weak groove 13 so that the vacuum heat insulating material 4 can be taken out.

なお、壁部２から外板６を除去する方法としては、上記以外にも任意の位置において剥離部１４を形成して引き剥がしてもよいし、凹溝１３に沿って加圧することで強度の弱い凹溝１３の部分で外板６を破断させて除去し、真空断熱材４を取り出すようにしてもよい。   In addition, as a method of removing the outer plate 6 from the wall portion 2, in addition to the above, the peeling portion 14 may be formed and peeled off at an arbitrary position, or the strength may be increased by applying pressure along the groove 13. The outer plate 6 may be broken and removed at the weak groove 13 to take out the vacuum heat insulating material 4.

さらに、本実施の形態の変形例として、図３（Ｃ）に示すように、凹溝１３を２本平行して形成する方法について、以下に説明する。凹溝１３の形成位置や形成方法は、上記方法と同様に行うことができる。冷蔵庫の解体に際しては、２本の凹溝１３間のいずれかの位置の一部に孔あけ等により帯状の剥離部１４を形成し、この剥離部１４を引っ張ることにより帯状に外板６が破断され、最終的に外板６は壁部２より分離され、真空断熱材４を取り出すことができる。   Furthermore, as a modification of the present embodiment, a method of forming two concave grooves 13 in parallel as shown in FIG. 3C will be described below. The formation position and formation method of the concave groove 13 can be performed in the same manner as the above method. When the refrigerator is disassembled, a strip-shaped peeling portion 14 is formed by drilling or the like in a part of any position between the two concave grooves 13, and the strip 6 is pulled to break the outer plate 6 into a strip shape. Finally, the outer plate 6 is separated from the wall 2 and the vacuum heat insulating material 4 can be taken out.

２本の凹溝１３の間隔は、外板６の材質、厚み、溝の形状等により異なるために、帯状に剥離される外板６が剥離途中で切断しない寸法を、実験等により確認して用いることが望ましい。   Since the distance between the two concave grooves 13 varies depending on the material, thickness, groove shape, etc. of the outer plate 6, the dimensions of the outer plate 6 that is peeled off in a strip shape are not cut in the middle of peeling by experiments. It is desirable to use it.

なお、本実施の形態の方法では、充填断熱材を用いない方が容易に壁部２より分離することができる。また、扉部３に対しては、開閉の繰り返しや使用時の衝撃等による影響も考慮して凹溝１３を設計することが望ましい。   In the method of the present embodiment, it is possible to separate the wall portion 2 more easily without using the filling heat insulating material. In addition, it is desirable to design the groove 13 for the door 3 in consideration of the effects of repeated opening and closing, impacts during use, and the like.

（第３の実施の形態）
本発明の第３の実施の形態にかかる真空断熱材の解体回収方法について、図５を用いて説明する。本実施の形態では、外板６と内板７との間に真空断熱材４と充填断熱材８とが装着されて形成された壁部２から真空断熱材４を回収する方法について説明をする。 (Third embodiment)
A method for dismantling and recovering a vacuum heat insulating material according to a third embodiment of the present invention will be described with reference to FIG. In the present embodiment, a method for recovering the vacuum heat insulating material 4 from the wall portion 2 formed by mounting the vacuum heat insulating material 4 and the filling heat insulating material 8 between the outer plate 6 and the inner plate 7 will be described. .

図５（Ａ）は冷蔵庫１の斜視図を示す。本実施の形態では、冷蔵庫１の解体は、以下の手順で行う。最初に、図５（Ｂ）に示すように、構成する壁部２や扉部３を外板６と内板７との間の断面が露出するように切断解体する。この切断手段については、切断砥石、切断のこぎり、レーザーまたは高圧水等の既知の手段を用いることができる。この解体切断時においては、真空断熱材４の真空包装が破壊されないような位置で切断する。   FIG. 5A shows a perspective view of the refrigerator 1. In the present embodiment, the refrigerator 1 is disassembled according to the following procedure. First, as shown in FIG. 5B, the wall portion 2 and the door portion 3 are cut and disassembled so that the cross section between the outer plate 6 and the inner plate 7 is exposed. As the cutting means, known means such as a cutting grindstone, a cutting saw, a laser or high-pressure water can be used. At the time of dismantling and cutting, cutting is performed at a position where the vacuum packaging of the vacuum heat insulating material 4 is not broken.

このようにして切断された壁部２の断面は、金属の外板６と、樹脂の内板７と、これらの間に外板６に接着された真空断熱材４と、充填された発泡ウレタン系樹脂の充填断熱材８とが露出している。充填断熱材８は接着性を有しており、真空断熱材４、外板６および内板７と接合している。発泡ウレタン系樹脂は熱可塑性樹脂であり、加熱により変形や溶融が生じるので成型等の種々の加工が容易である。この特性を利用して、充填断熱材８を熱により溶融切断し、真空断熱材４を取り出す。なお、内板７も熱可塑性樹脂を用いているが、充填断熱材８とは材質も溶融温度も異なる。そのため、充填断熱材８の切断を容易にするためには、この内板７は溶融切断位置から除去しておくことが望ましい。   The cross section of the wall portion 2 cut in this way is as follows: a metal outer plate 6, a resin inner plate 7, a vacuum heat insulating material 4 bonded to the outer plate 6 therebetween, and a filled urethane foam The resin-filled heat insulating material 8 is exposed. The filling heat insulating material 8 has adhesiveness and is joined to the vacuum heat insulating material 4, the outer plate 6 and the inner plate 7. The foamed urethane-based resin is a thermoplastic resin, and is deformed or melted by heating, so that various processes such as molding are easy. Utilizing this characteristic, the filled heat insulating material 8 is melted and cut by heat, and the vacuum heat insulating material 4 is taken out. Although the inner plate 7 is also made of a thermoplastic resin, the material and the melting temperature are different from those of the filled heat insulating material 8. Therefore, in order to facilitate the cutting of the filled heat insulating material 8, it is desirable to remove the inner plate 7 from the melt cutting position.

つぎに、図５（Ｂ）に示すように、線状の加熱手段１５を用いて充填断熱材８を切断する。この加熱手段１５としては、線状に形成したヒータ線が適当であるが、特に限定はされない。本実施の形態では、加熱手段１５を、以下ヒータ線として説明する。このとき、ヒータ線１５は露出した壁部２の外板６と真空断熱材４とに平行で、かつ真空断熱材４に可能な限り近い位置に設定する。この位置は、真空断熱材４がヒータ線１５からの熱で損傷しない位置、すなわち図示するように外板６を基準として寸法βの位置とする。ヒータ線１５は、図示しない加熱装置および駆動装置により加熱と駆動が制御されており、矢印で示す方向に移動可能である。このヒータ線１５は、既知の電熱線や電熱棒を用いて形成することができる。   Next, as shown in FIG. 5 (B), the filled heat insulating material 8 is cut using a linear heating means 15. The heating means 15 is suitably a heater wire formed in a linear shape, but is not particularly limited. In the present embodiment, the heating means 15 will be described below as a heater wire. At this time, the heater wire 15 is set at a position parallel to the exposed outer plate 6 of the wall portion 2 and the vacuum heat insulating material 4 and as close as possible to the vacuum heat insulating material 4. This position is a position where the vacuum heat insulating material 4 is not damaged by the heat from the heater wire 15, that is, a position of the dimension β with reference to the outer plate 6 as shown. Heating and driving of the heater wire 15 are controlled by a heating device and a driving device (not shown), and the heater wire 15 can move in a direction indicated by an arrow. The heater wire 15 can be formed using a known heating wire or heating rod.

所定の温度に加熱されたヒータ線１５は、矢印で示す方向の下方に移動して充填断熱材８を溶融しながら切断していく。これを図５（Ｃ）に示す。ヒータ線１５により、充填断熱材８には溶融部１９が形成され、この結果、内板７側と外板６側に溶融切断される。さらに、同様にして、真空断熱材４を覆っている周囲の充填断熱材８も除去すると、外板６に接着されている真空断熱材４が残る。   The heater wire 15 heated to a predetermined temperature moves downward in the direction indicated by the arrow and cuts while filling the heat insulating material 8. This is shown in FIG. Due to the heater wire 15, a melted portion 19 is formed in the filled heat insulating material 8, and as a result, melted and cut to the inner plate 7 side and the outer plate 6 side. Further, similarly, when the surrounding filled heat insulating material 8 covering the vacuum heat insulating material 4 is also removed, the vacuum heat insulating material 4 bonded to the outer plate 6 remains.

つぎに、接着されている外板６と真空断熱材４との分離を行うが、この分離は、接着剤の特性が所定温度により軟化溶融するものをあらかじめ用いておくと、外板６を所定温度以上に加熱することで容易に分離できる。なお、接着剤として、加熱以外の方法で接着力をなくしたり、弱めたりする水溶性や溶剤溶融性等、種々の特性を有するものがあるため、必要に応じて用いることができる。   Next, the bonded outer plate 6 and the vacuum heat insulating material 4 are separated. In this separation, if the adhesive is softened and melted at a predetermined temperature in advance, the outer plate 6 is predetermined. It can be easily separated by heating above the temperature. In addition, since there exists what has various characteristics, such as water solubility and solvent meltability which lose or weaken adhesive force by methods other than a heating as an adhesive agent, it can be used as needed.

なお、充填断熱材８の切断時に、ヒータ線１５により真空断熱材４が損傷されないようにするために、ヒータ線１５の加熱温度や真空断熱材４との距離寸法βをあらかじめ求めておき制御しながら切断することで、効率がよく、かつ品質のよい回収につながる。   It should be noted that the heating temperature of the heater wire 15 and the distance dimension β between the heater wire 15 and the vacuum heat insulating material 4 are obtained in advance and controlled so that the heater wire 15 does not damage the vacuum heat insulating material 4 when the filled heat insulating material 8 is cut. By cutting while, it leads to efficient and quality recovery.

（第４の実施の形態）
本発明の第４の実施の形態にかかる断熱材の解体回収方法について、図６を用いて説明する。本実施の形態では、真空断熱材４の両側に遮蔽物１８を設置して、解体回収時に真空断熱材４を容易に回収する方法について説明する。 (Fourth embodiment)
A heat insulator dismantling and recovery method according to the fourth embodiment of the present invention will be described with reference to FIG. In the present embodiment, a method will be described in which the shield 18 is installed on both sides of the vacuum heat insulating material 4 and the vacuum heat insulating material 4 is easily recovered at the time of dismantling recovery.

図６に示すように、真空断熱材４は、ガラス繊維やポリエステル樹脂繊維の集綿体または集綿体を結合材で結合して形成した芯材１７を第１外皮１６で覆って形成されている。そして、壁部２は真空断熱材４を外板６に接着後、内板７と組み合わせ、外板６と内板７とで形成された空隙部に発泡ウレタン樹脂の充填断熱材８を充填して形成されている。本実施の形態では、真空断熱材４と外板６との間、および真空断熱材４と充填断熱材８との間に、紙やダンボール等の容易に破断や破砕が可能で、充填断熱材８を充填したときに遮断できる材質の遮蔽物１８を介して壁部２の断熱部が形成されている。   As shown in FIG. 6, the vacuum heat insulating material 4 is formed by covering a core material 17 formed by binding a cotton fiber collection body or a cotton collection body of glass fibers or polyester resin fibers with a binding material with a first outer skin 16. Yes. The wall 2 is bonded to the outer plate 6 after the vacuum heat insulating material 4 is bonded to the outer plate 6, and the space formed by the outer plate 6 and the inner plate 7 is filled with the filled insulating material 8 of urethane foam resin. Is formed. In this embodiment, between the vacuum heat insulating material 4 and the outer plate 6 and between the vacuum heat insulating material 4 and the filled heat insulating material 8, paper or cardboard can be easily broken or crushed. A heat insulating portion of the wall portion 2 is formed through a shield 18 made of a material that can be cut off when 8 is filled.

その方法は、まず外板６と遮蔽物１８とを接着後、遮蔽物１８と真空断熱材４とを接着する。つぎに、真空断熱材４を覆うように遮蔽物１８を設置した後、内板７と組み合わせる。組み合わせ後、外板６と内板７との間の空隙部に充填断熱材８を充填して壁部２を形成する。この方法によると、真空断熱材４は外板６と充填断熱材８とに直接触れることなく壁部２が形成される。   In this method, first, the outer plate 6 and the shielding object 18 are bonded, and then the shielding object 18 and the vacuum heat insulating material 4 are bonded. Next, after the shielding object 18 is installed so as to cover the vacuum heat insulating material 4, it is combined with the inner plate 7. After the combination, the wall portion 2 is formed by filling the space between the outer plate 6 and the inner plate 7 with the filling heat insulating material 8. According to this method, the wall portion 2 is formed in the vacuum heat insulating material 4 without directly touching the outer plate 6 and the filling heat insulating material 8.

このように形成された壁部２を用いた冷蔵庫１の解体回収は、第１の実施の形態や第２の実施の形態の方法等を用いて外板６を除去すれば、容易に真空断熱材４が回収できる。外板６に対して、遮蔽物１８を介して接着されている真空断熱材４は、遮蔽物１８が紙やダンボールのため容易に分離することができる。   The dismantling and recovery of the refrigerator 1 using the wall portion 2 formed in this way can be easily vacuum-insulated if the outer plate 6 is removed using the method of the first embodiment or the second embodiment. The material 4 can be collected. The vacuum heat insulating material 4 bonded to the outer plate 6 via the shield 18 can be easily separated because the shield 18 is paper or cardboard.

なお上記の説明においては、遮蔽物１８の間に真空断熱材４を設置する方法についてしたが、紙袋やダンボール箱に真空断熱材４を入れたものを用いても同様の効果を得ることができる。   In the above description, the method of installing the vacuum heat insulating material 4 between the shields 18 has been described. However, the same effect can be obtained by using a paper bag or a cardboard box containing the vacuum heat insulating material 4. .

（第５の実施の形態）
本発明の第５の実施の形態にかかる真空断熱材の解体回収方法について、図７を用いて説明する。本実施の形態では、図７に示すように、冷蔵庫１の頂上部を切断して、真空断熱材４を回収する方法について説明する。 (Fifth embodiment)
A method for disassembling and recovering a vacuum heat insulating material according to a fifth embodiment of the present invention will be described with reference to FIG. In the present embodiment, as shown in FIG. 7, a method of cutting the top of the refrigerator 1 and recovering the vacuum heat insulating material 4 will be described.

本実施の形態では、図７（Ａ）に示すように、解体する冷蔵庫１を使用状態の姿勢に設置し、頂上部を水平に切断して上部２０を除去する。これにより、外板６と内板７とにより構成される壁部２の切断面部２１が形成される。切断面部２１は、冷蔵庫１の扉部３側から見て左右の壁部２と後部の壁部２とが連続した中空の略コの字形状であり、壁部２内に装着されている真空断熱材４が切断面部２１を介して目視確認できる状態になる。   In this Embodiment, as shown to FIG. 7 (A), the refrigerator 1 to disassemble is installed in the attitude | position of use condition, the top part is cut | disconnected horizontally, and the upper part 20 is removed. Thereby, the cut surface part 21 of the wall part 2 comprised by the outer plate 6 and the inner plate 7 is formed. The cut surface portion 21 is a hollow substantially U-shape in which the left and right wall portions 2 and the rear wall portion 2 are continuous as viewed from the door portion 3 side of the refrigerator 1, and the vacuum mounted in the wall portion 2. The heat insulating material 4 is in a state that can be visually confirmed through the cut surface portion 21.

つぎに、図７（Ｂ）に示すように、真空断熱材４が切断面部２１から矢印で示す方向（図中では上方）に引き出されて回収される。したがって、この場合の壁部２における断熱は、真空断熱材４のみとし、充填断熱材８は用いず、また真空断熱材４は外板６に接着しない方が取り出しやすく、より有効である。   Next, as shown in FIG. 7B, the vacuum heat insulating material 4 is drawn out from the cut surface portion 21 in the direction indicated by the arrow (upward in the drawing) and collected. Therefore, the heat insulation in the wall portion 2 in this case is only effective because the vacuum heat insulating material 4 is not used, the filling heat insulating material 8 is not used, and the vacuum heat insulating material 4 is not adhered to the outer plate 6 because it is easier to take out.

ただし、真空断熱材４を接着することも本発明の範囲であり、真空断熱材４を接着する場合は、取り出しが容易で、かつ移動や偏りを防止できる程度の接着とすることが望ましい。このためには、スポット的に接着することも有効である。また、本実施の形態では、真空断熱材４は略コの字形状の一体型としたが、このような構成とすることにより、３方向同時に装着、取り出しができて効率のよい作業が可能となる。   However, bonding the vacuum heat insulating material 4 is also within the scope of the present invention. When the vacuum heat insulating material 4 is bonded, it is desirable that the vacuum heat insulating material 4 be bonded so that it can be easily taken out and can be prevented from moving and being biased. For this purpose, spot bonding is also effective. Further, in this embodiment, the vacuum heat insulating material 4 is a substantially U-shaped integral type, but by adopting such a configuration, it is possible to mount and take out in three directions at the same time, and an efficient work is possible. Become.

本実施の形態で用いられる略コの字形状の真空断熱材４としては、図８に示す工程で製造すると、折り曲げが容易でコの字形状に形成しやすく、脱着時に外板６や内板７との摩擦が少なく、摩擦による第１外皮１６の破損防止が可能で、かつ取り出し後には平らにすることもできるので回収後の保管場所を最小にできる。   As the substantially U-shaped vacuum heat insulating material 4 used in the present embodiment, when manufactured by the process shown in FIG. 8, it can be easily bent and formed into a U-shape, and the outer plate 6 and the inner plate can be easily detached. 7, the first outer skin 16 can be prevented from being damaged by friction, and can be flattened after being taken out, so that the storage space after collection can be minimized.

以下、この製造方法について説明する。図８（Ａ）は、芯材１７を第１外皮１６で真空包装してなる真空断熱材４である。この真空断熱材４を、図８（Ｂ）に示すように加熱加圧治具（図示せず）を用い、矢印で示す方向に真空断熱材４の両面より所定の温度、圧力を加えて、凹部２２を形成する。この凹部２２は、第１外皮１６と芯材１７が溶着すると硬くなることがあり、使用時に図８（Ｃ）のように、矢印で示す方向に折り曲げるときに、折り曲げ部において破損するおそれがあるので、適切な温度と圧力の設定をすることが望ましい。本実施の形態では図８（Ｂ）に示すように、凹部２２は両面に形成されているが、片面のみに形成してもよい。   Hereinafter, this manufacturing method will be described. FIG. 8A shows a vacuum heat insulating material 4 formed by vacuum packaging the core material 17 with a first outer skin 16. As shown in FIG. 8 (B), the vacuum heat insulating material 4 is applied with a predetermined temperature and pressure from both sides of the vacuum heat insulating material 4 in the direction indicated by the arrow, as shown in FIG. A recess 22 is formed. The concave portion 22 may become hard when the first outer skin 16 and the core material 17 are welded, and may be damaged at the bent portion when bent in the direction indicated by the arrow as shown in FIG. Therefore, it is desirable to set appropriate temperature and pressure. In this embodiment, as shown in FIG. 8B, the recess 22 is formed on both sides, but it may be formed only on one side.

頂上部における切断のための目印は、第１の実施の形態で説明したように、切断する部分に切断位置を示すマークを形成しておくことにより、解体時の作業が容易に行える。切断は、切断砥石、切断のこぎりおよびレーザー等の既知の方法を任意に選択して用いることができる。   As described in the first embodiment, the mark for cutting at the top can be easily disassembled by forming a mark indicating the cutting position at the part to be cut. For the cutting, a known method such as a cutting grindstone, a cutting saw and a laser can be arbitrarily selected and used.

扉部３の切断は、壁部２と同時でもよいし、あらかじめ冷蔵庫１より扉部３を分離しておき、別途扉部３だけを切断してもよい。また、上記の説明では、コの字形状の真空断熱材４を用いて説明したが、１枚ずつに分割された真空断熱材４でも回収は同様にして行うことができる。   The door 3 may be cut simultaneously with the wall 2 or the door 3 may be separated from the refrigerator 1 in advance and only the door 3 may be cut separately. In the above description, the U-shaped vacuum heat insulating material 4 is used for explanation. However, the vacuum heat insulating material 4 divided into one piece can be recovered in the same manner.

なお、上記の説明では、頂上部を切断して上部２０を除去した後、真空断熱材４を外板６と内板７との間より回収する方法について述べたが、上部２０を壁部２に対して、着脱自在の構造にしてもよい。このような構造とすることにより、真空断熱材４の装着や回収は、上部２０のない状態で行える。したがって、上部２０の着脱が可能な構造と固定方法にしておけば、真空断熱材４の解体回収をより容易にすることができる。   In the above description, the method of recovering the vacuum heat insulating material 4 between the outer plate 6 and the inner plate 7 after cutting the top portion and removing the upper portion 20 has been described. On the other hand, a detachable structure may be used. With this structure, the vacuum heat insulating material 4 can be mounted and collected without the upper portion 20. Therefore, if the structure and the fixing method are such that the upper part 20 can be attached and detached, disassembly and recovery of the vacuum heat insulating material 4 can be facilitated.

（第６の実施の形態）
本発明の第６の実施の形態にかかる真空断熱材の解体回収方法について、図９と図１０とを用いて説明する。本実施の形態では、冷蔵庫１の壁部２や扉部３から、真空断熱材４の芯材１７を吸引回収する方法について説明をする。本実施の形態では、芯材１７がガラス繊維やポリエステル樹脂繊維の綿状に形成された集綿体のものに対して適用可能である。 (Sixth embodiment)
A vacuum heat insulator disassembly and recovery method according to the sixth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a method for sucking and collecting the core material 17 of the vacuum heat insulating material 4 from the wall portion 2 and the door portion 3 of the refrigerator 1 will be described. In this Embodiment, it is applicable with respect to the thing of the cotton collection body in which the core material 17 was formed in the cotton shape of the glass fiber or the polyester resin fiber.

図９は、冷蔵庫１の解体時に壁部２や扉部３に設ける開口部２３と空気導入孔２４の形成配置例を示している。本実施の形態では、壁部２に開口部２３と空気導入孔２４とを設けた例を示す。図９（Ａ）では、壁部２の真空断熱材４が設置されている外周部に空気導入孔２４が複数個設けられ、壁部２のほぼ中心部に吸引装置装着用の開口部２３が設けられている。図９（Ｂ）では、壁部２の真空断熱材４が設置されている外周部とほぼ中心部に空気導入孔２４が複数個設けられ、外周部に開口部２３が設けられている。   FIG. 9 shows an example of formation and arrangement of the opening 23 and the air introduction hole 24 provided in the wall 2 and the door 3 when the refrigerator 1 is disassembled. In the present embodiment, an example in which an opening 23 and an air introduction hole 24 are provided in the wall 2 is shown. In FIG. 9A, a plurality of air introduction holes 24 are provided in the outer peripheral portion of the wall portion 2 where the vacuum heat insulating material 4 is installed, and an opening 23 for attaching a suction device is provided in the substantially central portion of the wall portion 2. Is provided. In FIG. 9 (B), a plurality of air introduction holes 24 are provided substantially at the center and the outer periphery of the wall 2 where the vacuum heat insulating material 4 is installed, and the opening 23 is provided at the outer periphery.

図１０は、壁部２から吸引装置を装着して吸引する方法を説明するための部分断面図である。図１０（Ａ）と図１０（Ｂ）とは吸引装置を装着して吸引する例を示し、図１０（Ｃ）は開口部２３より吸引ノズルを挿入して吸引する例を示す。   FIG. 10 is a partial cross-sectional view for explaining a method of attaching and sucking a suction device from the wall 2. 10A and 10B show an example in which suction is performed by attaching a suction device, and FIG. 10C shows an example in which suction is performed by inserting a suction nozzle through the opening 23.

図１０（Ａ）と図１０（Ｂ）に示す吸引方法の場合には、壁部２の開口部２３に吸引装置２５（吸引駆動部は図示せず）を装着して真空断熱材４の芯材１７を吸引する。このときの開口部２３および空気導入孔２４は、真空断熱材４を内蔵する壁部２や扉部３の外板６と、真空断熱材４の第１外皮１６に設ける。通常、一つの真空断熱材４に対して、吸引するための開口部２３は一つ、空気導入孔２４は複数個設け、その大きさは開口部２３より、空気導入孔２４の方を小さくする。   In the case of the suction method shown in FIGS. 10 (A) and 10 (B), a suction device 25 (a suction drive unit is not shown) is attached to the opening 23 of the wall 2 and the core of the vacuum heat insulating material 4 is attached. The material 17 is sucked. At this time, the opening 23 and the air introduction hole 24 are provided in the outer plate 6 of the wall 2 and the door 3 in which the vacuum heat insulating material 4 is incorporated, and the first skin 16 of the vacuum heat insulating material 4. Normally, one vacuum heat insulating material 4 has one opening 23 for suction and a plurality of air introduction holes 24, and the size of the air introduction hole 24 is smaller than that of the opening 23. .

開口部２３および空気導入孔２４を設けた後、図１０（Ａ）の場合には、吸引装置２５を外板６の開口部２３に装着固定する。ついで、吸引装置２５の吸引駆動部を作動させて吸引動作をさせると、芯材１７は綿状のため順次吸引装置２５により矢印で示す方向に吸い出され所定容器（図示せず）に回収される。このとき、吸引装置２５の装着付近の芯材１７は容易に吸引され回収されるが、距離が離れるに従い吸引されにくくなる。しかしながら、さらに吸引を続けると、空気導入孔２４より空気も吸引するようになり、この吸引された空気と一緒に芯材１７が吸引装置２５の方へ移動していくので芯材１７は容易に吸引され回収できるようになる。   After the opening 23 and the air introduction hole 24 are provided, the suction device 25 is mounted and fixed to the opening 23 of the outer plate 6 in the case of FIG. Then, when the suction drive unit of the suction device 25 is operated to perform the suction operation, the core material 17 is cotton-like and is sequentially sucked out in the direction indicated by the arrow by the suction device 25 and collected in a predetermined container (not shown). The At this time, the core material 17 in the vicinity of the mounting of the suction device 25 is easily sucked and collected, but is less likely to be sucked as the distance increases. However, if the suction is further continued, air is also sucked from the air introduction hole 24, and the core material 17 moves toward the suction device 25 together with the sucked air. It can be aspirated and collected.

図１０（Ｂ）に示す場合には、開口部２３に吸引装置２５を取り付けることについては図１０（Ａ）の場合と同じであるが、空気導入孔２４に加圧空気を導入するための加圧空気ノズル２７を取り付けることが異なる。このように吸引装置２５と加圧ノズル２７とを設置した後、吸引装置２５による吸引動作前に、加圧空気ノズル２７により加圧空気を芯材１７に吐出して、真空包装による芯材１７の集綿体の凝縮状態を緩和させる。開口部２３と空気導入孔２４を形成した時点で真空が解除されて集綿体の凝縮の緩和は行われているが、加圧空気を入れることにより凝縮の緩和がさらに改善される。芯材１７は、凝縮を緩和させることにより、繊維状にほぐれて吸引されやすくなり、吸引時のつまりを防止して安定した吸引回収を可能にする。このように芯材１７の集綿体の凝縮状態を緩和させた後、吸引装置２５で芯材１７の吸引回収を行う。   In the case shown in FIG. 10B, the attachment of the suction device 25 to the opening 23 is the same as that in FIG. 10A, but the process for introducing pressurized air into the air introduction hole 24 is performed. Attaching the compressed air nozzle 27 is different. After the suction device 25 and the pressure nozzle 27 are thus installed, before the suction operation by the suction device 25, the pressurized air is discharged to the core material 17 by the pressurized air nozzle 27, and the core material 17 by vacuum packaging is used. Relieve the condensed state of the cotton collection. At the time when the opening 23 and the air introduction hole 24 are formed, the vacuum is released and the condensation of the cotton collection body is reduced. However, the addition of pressurized air further improves the relaxation of the condensation. The core material 17 relaxes the condensation, so that the core material 17 is loosened into a fiber shape and is easily sucked, thereby preventing clogging during suction and enabling stable suction recovery. In this way, after the condensed state of the cotton collection body of the core material 17 is relaxed, the suction material 25 is sucked and collected by the suction device 25.

加圧空気の吐出は、吸引装置２５により吸引回収中も断続的または連続して行うことにより、芯材１７の吸引装置２５への移動を容易にし、吸引回収作業をより安定させることができる。   The discharge of the pressurized air is performed intermittently or continuously during the suction recovery by the suction device 25, thereby facilitating the movement of the core member 17 to the suction device 25 and making the suction recovery work more stable.

また、図１０（Ｃ）に示す場合には、開口部２３から移動と方向を自在に変えられる吸引ノズル２６を芯材１７中に挿入して芯材１７を吸引回収する方法を示している。回収を確実にするために、吸引ノズル２６を矢印で示すように、左右および回転させる等自在に動かして、吸引駆動部（図示せず）を作動させて吸引ノズル２６で吸引させると効率的に芯材１７を吸引し回収することができる。このとき、吸引作業前に空気導入孔２４より空気を吹き込み、芯材１７の凝縮状態を緩和しておけば、さらに回収をしやすくすることができる。または、吸引駆動部と吸引ノズル２６を用いて空気を送り込み、芯材１７の凝縮状態を緩和してから吸引動作するようにしてもよい。   10C shows a method of sucking and collecting the core material 17 by inserting a suction nozzle 26 that can freely move and change its direction from the opening 23 into the core material 17. FIG. In order to ensure the recovery, it is efficient to move the suction nozzle 26 left and right and rotate freely as indicated by the arrow, and operate the suction drive unit (not shown) to cause the suction nozzle 26 to suck. The core material 17 can be sucked and collected. At this time, if air is blown from the air introduction hole 24 before the suction operation and the condensed state of the core material 17 is relaxed, the recovery can be further facilitated. Alternatively, the suction operation may be performed after air is sent using the suction drive unit and the suction nozzle 26 to relax the condensed state of the core material 17.

（第７の実施の形態）
本発明の第７の実施の形態にかかる真空断熱材の解体回収方法について、図１１と図１２を用いて説明する。本実施の形態では、２重に真空包装された真空断熱材４を壁部２より回収する方法について説明する。 (Seventh embodiment)
A method for dismantling and collecting a vacuum heat insulating material according to a seventh embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a method of recovering the vacuum heat insulating material 4 that is double-packed in vacuum from the wall 2 will be described.

最初に、本実施の形態で用いる２重真空断熱材の構造について説明する。図１１は、第２外皮３１により、真空断熱材４を２重に真空包装した２重真空断熱材３０の構造を示し、図１１（Ａ）はその平面図であり、図１１（Ｂ）はその断面図である。本実施の形態では、芯材１７を第１外皮１６で真空包装した真空断熱材４の全体を、さらに第２外皮３１で真空包装して２重真空断熱材３０の構成としたことが特徴である。これにより、断熱材としての致命的破損防止を向上することができる。   First, the structure of the double vacuum heat insulating material used in this embodiment will be described. FIG. 11 shows the structure of a double vacuum heat insulating material 30 in which the vacuum heat insulating material 4 is double-wrapped by the second skin 31, FIG. 11A is a plan view thereof, and FIG. FIG. The present embodiment is characterized in that the entire vacuum heat insulating material 4 obtained by vacuum packaging the core material 17 with the first outer skin 16 is further vacuum packaged with the second outer skin 31 to form a double vacuum heat insulating material 30. is there. Thereby, the fatal damage prevention as a heat insulating material can be improved.

本実施の形態の２重真空断熱材３０は、上記したように従来構成の真空断熱材４を第２外皮３１で真空包装した構造であるが、第２外皮３１で真空断熱材４を真空包装するときに、第２外皮３１で形成する密封糊代１０全体を接着や溶着するのではなく、真空断熱材４の密封糊代９部の周囲に接着や溶着しない非接着部２８を形成している。   The double vacuum heat insulating material 30 of the present embodiment has a structure in which the vacuum heat insulating material 4 of the conventional configuration is vacuum packaged by the second outer skin 31 as described above, but the vacuum heat insulating material 4 is vacuum packed by the second outer skin 31. In this case, the non-adhesive portion 28 that is not bonded or welded is formed around the sealing glue margin 9 part of the vacuum heat insulating material 4 instead of adhering or welding the entire sealing glue margin 10 formed by the second outer skin 31. Yes.

第２外皮３１は第１外皮１６と同材質でも、異材質でもよく、また第１外皮１６程の真空度維持ができなくてもよい。芯材１７は、ガラス繊維やポリエステル樹脂繊維の集綿体でも、あるいは集綿体を結合材で結合した状態の結合体のどちらでもでもよい。   The second skin 31 may be the same material as the first skin 16 or a different material, and it may not be possible to maintain the degree of vacuum as much as the first skin 16. The core material 17 may be either a collection of glass fibers or polyester resin fibers, or a combination in a state where the collection is bonded with a bonding material.

この２重真空断熱材３０を用いた冷蔵庫１から、真空断熱材４を回収する方法について、図１２を用いて説明する。図１２は、本実施の形態の真空断熱材を用いた冷蔵庫１の壁部２より真空断熱材４を回収する方法を示している。   A method for recovering the vacuum heat insulating material 4 from the refrigerator 1 using the double vacuum heat insulating material 30 will be described with reference to FIG. FIG. 12 shows a method of recovering the vacuum heat insulating material 4 from the wall portion 2 of the refrigerator 1 using the vacuum heat insulating material of the present embodiment.

図１２（Ａ）は、外板６と内板７とで形成されている壁部２において、真空断熱材４を単独で使用するときと同様に外板６に２重真空断熱材３０が接着されている状態を示している。   12A shows that the double vacuum heat insulating material 30 is bonded to the outer plate 6 in the same manner as when the vacuum heat insulating material 4 is used alone in the wall portion 2 formed by the outer plate 6 and the inner plate 7. It shows the state being done.

つぎに、図１２（Ｂ）に示すように、２重真空断熱材３０の真空は破られるが真空断熱材４の真空は保持される位置、すなわち２重真空断熱材３０の非接着部２８が設けられている位置３２で切断する。１回の作業で非接着部２８での切断が困難な場合は、真空断熱材４を切断するおそれのない非接着部２８の近傍を切断後手動で切断してもよい。   Next, as shown in FIG. 12 (B), the position where the vacuum of the double vacuum heat insulating material 30 is broken but the vacuum of the vacuum heat insulating material 4 is maintained, that is, the non-bonded portion 28 of the double vacuum heat insulating material 30 is Cut at the provided position 32. When it is difficult to cut at the non-adhesive portion 28 in one operation, the vicinity of the non-adhesive portion 28 that is unlikely to cut the vacuum heat insulating material 4 may be cut manually after cutting.

つぎに、図１２（Ｃ）に示すように、２重真空断熱材３０の切断により生じた、第２外皮３１の一部分である開封部３３を、内蔵する真空断熱材４を取り出せる大きさになるように矢示方向に広げ開封する。   Next, as shown in FIG. 12 (C), the opening portion 33 that is a part of the second outer skin 31 generated by cutting the double vacuum heat insulating material 30 is large enough to take out the vacuum heat insulating material 4 incorporated therein. Open in the direction of the arrow as shown.

開封した後、図１２（Ｄ）に示すように、開封部３３によりできた開口部分より、真空断熱材４を矢印で示す方向（図１２（Ｄ）中上方向）に引き出し回収する。これにより、真空断熱材４は破損することもなく、しかも真空状態も維持された状態で回収することができる。   After the opening, as shown in FIG. 12 (D), the vacuum heat insulating material 4 is drawn out and collected in the direction indicated by the arrow (upward in FIG. 12 (D)) from the opening formed by the opening 33. Thereby, the vacuum heat insulating material 4 can be recovered in a state where the vacuum state is maintained without being damaged.

なお、図１２に示した方法では、充填断熱材を用いない構成になっているが、充填断熱材を用いても本発明の解体回収方法は特に問題なく適用できる。すなわち、充填断熱材を用いた場合、充填断熱材が接着されるのは２重真空断熱材３０の第２外皮３１であるので、開封部３３によりできた開口部より真空断熱材４を引き出す作業を妨げることはない。   In the method shown in FIG. 12, the filling heat insulating material is not used, but the dismantling and recovering method of the present invention can be applied without any problem even if the filling heat insulating material is used. That is, when the filled heat insulating material is used, it is the second skin 31 of the double vacuum heat insulating material 30 that is bonded to the filled heat insulating material, so that the vacuum heat insulating material 4 is drawn out from the opening formed by the opening portion 33. Will not interfere.

（第８の実施の形態）
本発明の第８の実施の形態にかかる真空断熱材の構造について、図１３を用いて説明する。本実施の形態では、真空断熱材４の作製と補修とを大気中で作業できる真空断熱材の構造について説明する。 (Eighth embodiment)
The structure of the vacuum heat insulating material concerning the 8th Embodiment of this invention is demonstrated using FIG. In the present embodiment, the structure of a vacuum heat insulating material capable of working in the atmosphere for producing and repairing the vacuum heat insulating material 4 will be described.

通常、真空断熱材４は、ポリエステル樹脂系フィルムからなる袋状の第１外皮１６に、ガラス繊維またはポリエステル樹脂繊維の集綿体、または集綿体を結合材で結合して形成した芯材１７を挿入後、真空雰囲気中で袋の挿入口を閉じて作製されている。あるいは、２枚の第１外皮１６の間に芯材１７をはさみ、真空雰囲気中で接着や溶着をして密封されて、作製されている。   In general, the vacuum heat insulating material 4 is a core material 17 formed by bonding a glass fiber or polyester resin fiber cotton collection body or a cotton collection body to a bag-like first outer skin 16 made of a polyester resin film with a binder. After insertion, the bag insertion port is closed in a vacuum atmosphere. Alternatively, the core material 17 is sandwiched between the two first outer skins 16 and sealed by adhesion or welding in a vacuum atmosphere.

本発明の真空断熱材は、図１３（Ａ）に示すように、第１外皮１６の芯材１７側の所定の位置に弾性体３４が少なくとも１個所以上接合した構成を有することが特徴である。なお、この弾性体３４の接合は、接着や溶着等の接合方法で行えばよい。弾性体３４としては、矢印で示す方向に動き、抜き差しできる脱気針３５を突き刺した後、引き抜いたときに脱気針３５により形成された孔を塞ぎ、空気を通さなくする弾性特性を有する材質を用いる。例えば、ゴム系材料が適している。   As shown in FIG. 13A, the vacuum heat insulating material of the present invention is characterized by having a configuration in which at least one elastic body 34 is joined to a predetermined position on the core material 17 side of the first outer skin 16. . In addition, what is necessary is just to perform joining of this elastic body 34 by joining methods, such as adhesion | attachment and welding. The elastic body 34 is a material having an elastic characteristic that moves in a direction indicated by an arrow and punctures a deaeration needle 35 that can be inserted and removed, and then closes a hole formed by the deaeration needle 35 when it is pulled out, thereby preventing air from passing therethrough. Is used. For example, a rubber-based material is suitable.

弾性体３４の接合が完了すると、第１外皮１６を袋状にし芯材１７を入れるか、２枚の第１外皮１６の間に芯材１７を設置して、通常の大気中で封止密閉する。   When the joining of the elastic body 34 is completed, the first outer skin 16 is made into a bag shape and the core material 17 is inserted, or the core material 17 is installed between the two first outer skins 16 and sealed in a normal atmosphere. To do.

封止方法は、接着や溶着等の既知の方法で行うことができる。封止が完了すると、接合されたいずれかの弾性体３４に第１外皮１６を介して脱気針３５を差し込み、脱気針３５に接続された脱気装置（図示せず）を駆動して、第１外皮１６内を脱気して真空状態にした後、脱気針３５を弾性体３４より抜き取ることで真空断熱材４を形成する。   The sealing method can be performed by a known method such as adhesion or welding. When the sealing is completed, the deaeration needle 35 is inserted into one of the bonded elastic bodies 34 via the first outer skin 16, and a deaeration device (not shown) connected to the deaeration needle 35 is driven. Then, after the inside of the first outer skin 16 is evacuated to be in a vacuum state, the vacuum heat insulating material 4 is formed by extracting the deaeration needle 35 from the elastic body 34.

図１３（Ｂ）は、本実施例の変形例を説明するための図である。図１３（Ｂ）に示すように、ポリエステル樹脂系フィルムの第１外皮１６に弾性体３４と同材質または同様の特性を有する弾性膜３６を形成していることが特徴である。弾性膜３６の形成は、ポリエステル樹脂系フィルムに弾性膜材料を塗布またはシート状にして貼り付ける等、既知の所定の方法で行うことができる。この方法で弾性膜３６を有する第１外皮１６ができあがると、図１３（Ａ）と同様の手順で真空断熱材４を形成する。この場合の脱気針３５の突き刺す位置は特定する必要がなく、任意の位置を選択できるため、効率のよい作業を行うことができる。   FIG. 13B is a diagram for explaining a modification of the present embodiment. As shown in FIG. 13B, the first outer skin 16 of the polyester resin film is characterized in that an elastic film 36 having the same material as or similar to the elastic body 34 is formed. The elastic film 36 can be formed by a known and predetermined method such as applying an elastic film material to a polyester resin film or attaching it in a sheet form. When the first outer skin 16 having the elastic film 36 is completed by this method, the vacuum heat insulating material 4 is formed in the same procedure as in FIG. In this case, it is not necessary to specify the position where the deaeration needle 35 pierces, and an arbitrary position can be selected, so that an efficient operation can be performed.

つぎに、上記の方法で作製された真空断熱材４の補修の方法について説明する。   Next, a method for repairing the vacuum heat insulating material 4 produced by the above method will be described.

冷蔵庫の組み立て作業中や解体回収時に、真空断熱材４には孔あきや引き裂き等が生じて、破損することがある。破損が生じると真空状態も破れてしまい、断熱材としての性能が維持できなくなる。また、芯材１７が集綿体の場合には、破損部が大きいと第１外皮１６よりはみ出す可能性もある。   During the assembly operation of the refrigerator or at the time of dismantling and recovery, the vacuum heat insulating material 4 may be perforated, torn or the like, and may be damaged. When breakage occurs, the vacuum state is also broken, and the performance as a heat insulating material cannot be maintained. Further, in the case where the core material 17 is a cotton collection body, there is a possibility that the core material 17 protrudes from the first outer skin 16 if the damaged portion is large.

この孔や引き裂き部分は、つぎあての要領で破損部より大きめの第１外皮１６の材料を接着や溶着等の所定の方法で塞ぎ、その後、真空状態に戻すことで性能を回復して再使用すれば、省資源化とコストダウンに大きく寄与することができる。   These holes and teared portions are reused after the performance is restored by closing the material of the first outer skin 16 larger than the damaged portion by a predetermined method such as adhesion or welding, and then returning to a vacuum state. This can greatly contribute to resource saving and cost reduction.

その補修の手順を以下に述べる。所定の方法で破損部が修復されると、真空断熱材４を組み立てる場合と同じ作業手順で脱気を行う。しかし、補修の場合は、脱気前に気密チェックを行い、確実に破損部の修復が行われていることを確認することも大事である。気密チェックの方法として、各種計測器を用いる方法があるが、補修時の簡便な方法として、脱気針３５を突き刺して脱気する前に、水等の液体中に真空断熱材４を入れて脱気針を通して空気または他の気体を吹き込み、修復部分からの気体の漏れを気泡として確認する方法がある。気体の漏れがなければ、そのまま、つづいて脱気することで、気密チェックと脱気作業とが同一作業工程で行えるため作業効率の向上がはかられる。

尚、本明細書には、下記の態様も含まれる。
１．
冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、前記冷蔵庫内に面する内板と、前記冷蔵庫の外部に面する外板と、前記内板と前記外板との間に装着された真空断熱材および充填断熱材とを含み、前記外板面上に前記真空断熱材の装着位置を示すマークを設けた構成を有し、
前記冷蔵庫を解体回収するときに、前記マークに沿って前記外板を切断して前記真空断熱材を取り出すことを特徴とする真空断熱材の解体回収方法。
２．
冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、前記冷蔵庫内に面する内板と、前記冷蔵庫の外部に面する外板と、前記内板と前記外板との間に装着された真空断熱材および充填断熱材とを含み、前記真空断熱材の装着位置にあわせて前記外板面上に他の部分より板厚が薄くなるように凹溝を設けた構成を有し、
前記冷蔵庫を解体回収するときに、前記凹溝部に沿って前記外板を破断除去して前記真空断熱材を取り出すことを特徴とする真空断熱材の解体回収方法。
３．
前記マークまたは前記凹溝は、前記真空断熱材と前記外板との接合部または前記接合部位置より内周側の前記外板面上に設けられていることを特徴とする上記１または２に記載の真空断熱材の解体回収方法。
８．
冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、前記冷蔵庫内に面する内板と、前記冷蔵庫の外部に面する外板と、前記内板と前記外板との間に装着され２重に真空包装された真空断熱材または２重に真空包装された前記真空断熱材と充填断熱材とにより構成され、
前記冷蔵庫を解体回収するときに、前記真空断熱材の非接着部が設けられている位置の前記外板と前記内板とを切断後、２重に真空包装された前記真空断熱材の第２外皮を開封し、前記第２外皮による真空包装を解除し、かつ第１外皮による真空包装の真空を保持した状態で前記真空断熱材を取り出すことを特徴とする真空断熱材の解体回収方法。
１０．
冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、前記冷蔵庫内に面する内板と、前記冷蔵庫の外部に面する外板と、前記内板と前記外板との間に装着された真空断熱材または前記真空断熱材と充填断熱材とを含み、前記真空断熱材は第１外皮の密封糊代を大きくし、前記外板に対して前記密封糊代の最外周部分で接合した構造を有し、
前記冷蔵庫を解体回収するときに、前記外板とともに前記密封糊代の接合部または前記接合部より内周側の前記第１外皮の前記密封糊代を切断して、前記真空断熱材の真空状態を保持した状態で取り出すことを特徴とする真空断熱材の解体回収方法。
１３．
真空断熱材の芯材を第１外皮で真空包装した第１の真空包装と、前記第１の真空包装をさらに第２外皮で真空包装したことを特徴とする真空断熱材。
１４．
真空断熱材の芯材と、前記芯材を真空包装する第１外皮とからなり、前記第１外皮は、一方の面側が接着性を有し、他方の面側は非接着性を有していることを特徴とする真空断熱材。
１５．
平坦に形成した真空断熱材の折り曲げを行う位置に、加圧または加熱加圧により凹部を形成した構成からなることを特徴とする真空断熱材。
１６．
真空断熱材の芯材と、前記芯材を真空包装する第１外皮と、前記第１外皮の内側に密着して設けられた弾性体部または弾性体膜とからなる真空断熱材。
The repair procedure is described below. When the damaged part is repaired by a predetermined method, deaeration is performed by the same work procedure as that for assembling the vacuum heat insulating material 4. However, in the case of repair, it is also important to perform an airtight check before deaeration to ensure that the damaged part has been repaired. As a method of airtight check, there are methods using various measuring instruments. As a simple method for repairing, before the deaeration needle 35 is pierced and deaerated, the vacuum heat insulating material 4 is put in a liquid such as water. There is a method in which air or other gas is blown through a deaeration needle and gas leakage from the repaired part is confirmed as bubbles. If there is no gas leakage, the deaeration is continued as it is, so that the airtightness check and the deaeration work can be performed in the same work process, so that the work efficiency can be improved.

The present specification also includes the following aspects.
1.
A wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the refrigerator, an outer plate facing the outside of the refrigerator, the inner plate and the outer plate Including a vacuum heat insulating material and a filling heat insulating material mounted between, and having a configuration in which a mark indicating a mounting position of the vacuum heat insulating material is provided on the outer plate surface,
When disassembling and collecting the refrigerator, the vacuum heat insulating material is dismantled and recovered by cutting the outer plate along the mark and taking out the vacuum heat insulating material.
2.
A wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the refrigerator, an outer plate facing the outside of the refrigerator, the inner plate and the outer plate In addition, a recess is provided on the outer plate surface so as to be thinner than other portions in accordance with the mounting position of the vacuum heat insulating material. Having a configuration,
A method of disassembling and recovering a vacuum heat insulating material, wherein when the refrigerator is dismantled and recovered, the outer plate is broken and removed along the concave groove portion and the vacuum heat insulating material is taken out.
3.
In the above 1 or 2, the mark or the groove is provided on the outer plate surface on the inner peripheral side from the bonding portion of the vacuum heat insulating material and the outer plate or the position of the bonding portion. The method for dismantling and recovering the vacuum heat insulating material as described.
8).
A wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the refrigerator, an outer plate facing the outside of the refrigerator, the inner plate and the outer plate The vacuum heat insulating material that is mounted between and vacuum-packed twice, or the vacuum heat-insulating material that is vacuum-packed double and the filling heat insulating material,
When the refrigerator is dismantled and collected, the second of the vacuum heat insulating material that has been vacuum-packed twice after cutting the outer plate and the inner plate at a position where the non-bonding portion of the vacuum heat insulating material is provided. A method for disassembling and recovering a vacuum heat insulating material, comprising: opening the outer skin, releasing the vacuum packaging by the second outer skin, and taking out the vacuum heat insulating material while maintaining the vacuum of the vacuum packaging by the first outer skin.
10.
A wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the refrigerator, an outer plate facing the outside of the refrigerator, the inner plate and the outer plate A vacuum heat insulating material or a vacuum heat insulating material and a filling heat insulating material, and the vacuum heat insulating material increases a sealing paste margin of the first outer skin, It has a structure joined at the outermost part,
When the refrigerator is dismantled and recovered, the joint portion of the sealing adhesive margin together with the outer plate or the sealing adhesive margin of the first outer skin on the inner peripheral side from the joint portion is cut, and the vacuum heat insulating material is in a vacuum state A method for dismantling and recovering a vacuum heat insulating material, wherein the vacuum heat insulating material is taken out while being held.
13
A vacuum heat insulating material, characterized in that a vacuum insulating material core material is vacuum packaged with a first outer shell and the first vacuum package is further vacuum packed with a second outer shell.
14
It consists of a core material of a vacuum heat insulating material and a first outer skin that vacuum-wraps the core material, and the first outer skin has adhesiveness on one side and non-adhesiveness on the other side. A vacuum insulation material characterized by
15.
A vacuum heat insulating material comprising a concave portion formed by pressurization or heating and pressurization at a position where a flat vacuum heat insulating material is bent.
16.
The vacuum heat insulating material which consists of the core material of a vacuum heat insulating material, the 1st outer shell which vacuum-wraps the said core material, and the elastic body part or elastic body film provided closely_contact | adhered inside the said 1st outer skin.

本発明にかかる真空断熱材およびその解体回収方法は、冷蔵庫の外板に真空断熱材の接着位置を示すマークあるいは凹溝部を形成しておき、マークを基準にして外板を切断、あるいは凹溝部で外板を破断して剥離する方法等により、真空断熱材あるいは芯材を損傷や不純物の混入なく回収し、再利用を可能とすることで省資源化を実現し、環境汚染防止に貢献するという効果を有し、冷蔵庫のリサイクル分野に有用な方法である。   The vacuum heat insulating material according to the present invention and the dismantling and recovery method thereof include forming a mark or a groove portion indicating the adhesion position of the vacuum heat insulating material on the outer plate of the refrigerator, cutting the outer plate based on the mark, or the groove portion. By using a method that breaks and peels the outer plate with a vacuum, the vacuum insulation or core material can be recovered without damage or impurities, making it possible to reuse and conserve resources and contribute to the prevention of environmental pollution. This method is useful in the field of refrigerator recycling.

（Ａ）本発明の第１の実施の形態にかかる冷蔵庫の真空断熱材の解体回収方法を説明するための図で、冷蔵庫の斜視図（Ｂ）同実施の形態において、冷蔵庫の壁部を示す図（Ｃ）同実施の形態において、壁部の断面図(A) It is a figure for demonstrating the disassembly collection | recovery method of the vacuum heat insulating material of the refrigerator concerning the 1st Embodiment of this invention, The perspective view of a refrigerator (B) In the same embodiment, the wall part of a refrigerator is shown. Fig. (C) is a cross-sectional view of a wall in the same embodiment 同実施の形態の真空断熱材の解体回収方法の変形例を示す図The figure which shows the modification of the disassembly collection | recovery method of the vacuum heat insulating material of the embodiment （Ａ）本発明の第２の実施の形態にかかる冷蔵庫の真空断熱材の解体回収方法を説明するための図で、冷蔵庫の斜視図（Ｂ）同実施の形態において、壁部に設ける凹溝の形成状態を示す図（Ｃ）同実施の形態において、壁部に設ける凹溝の別の形成状態を示す図(A) It is a figure for demonstrating the disassembly collection | recovery method of the vacuum heat insulating material of the refrigerator concerning the 2nd Embodiment of this invention, It is a perspective view of a refrigerator (B) The groove | channel provided in a wall part in the same embodiment The figure which shows the formation state of (C) The figure which shows another formation state of the ditch | groove provided in a wall part in the same embodiment 同実施の形態において、壁部に形成する凹溝の断面形状の一例を示す図The figure which shows an example of the cross-sectional shape of the ditch | groove formed in a wall part in the embodiment （Ａ）本発明の第３の実施の形態にかかる冷蔵庫の真空断熱材の解体回収方法を説明するための図で、冷蔵庫の斜視図（Ｂ）同実施の形態において、壁部の切断形状を示す図（Ｃ）同実施の形態において、ヒータ線により充填断熱材を切断する方法を示す図(A) It is a figure for demonstrating the disassembly collection | recovery method of the vacuum heat insulating material of the refrigerator concerning the 3rd Embodiment of this invention, The perspective view of a refrigerator (B) In the same embodiment, The cutting | disconnection shape of a wall part is shown. (C) The figure which shows the method of cut | disconnecting a filling heat insulating material with a heater wire in the same embodiment 本発明の第４の実施の形態にかかる冷蔵庫の真空断熱材の解体回収方法を説明するための図で、壁部の部分断面図It is a figure for demonstrating the disassembly collection | recovery method of the vacuum heat insulating material of the refrigerator concerning the 4th Embodiment of this invention, The fragmentary sectional view of a wall part （Ａ）本発明の第５の実施の形態にかかる冷蔵庫の真空断熱材の解体回収方法を説明するための図で、冷蔵庫の上部を切断した状態を示す斜視図（Ｂ）同実施の形態において、真空断熱材を回収する方法を説明するための斜視図(A) It is a figure for demonstrating the disassembly collection | recovery method of the vacuum heat insulating material of the refrigerator concerning the 5th Embodiment of this invention, and the perspective view which shows the state which cut | disconnected the upper part of the refrigerator (B) In the same embodiment The perspective view for demonstrating the method to collect | recover vacuum insulation materials 同実施の形態において、真空断熱材の凹部を形成する方法を説明するための断面図Sectional drawing for demonstrating the method to form the recessed part of a vacuum heat insulating material in the embodiment （Ａ）本発明の第６の実施の形態にかかる冷蔵庫の真空断熱材の解体回収方法を説明するための図で、壁部に設ける開口部と空気導入孔とを示す図（Ｂ）同実施の形態において、壁部に設ける開口部と空気導入孔とを設ける位置の変形例を示す図(A) It is a figure for demonstrating the disassembly collection | recovery method of the vacuum heat insulating material of the refrigerator concerning the 6th Embodiment of this invention, The figure which shows the opening part and air introduction hole which are provided in a wall part (B) The figure which shows the modification of the position which provides the opening part and air introduction hole which are provided in a wall part in form of （Ａ）同実施の形態において、壁部の開口部に吸引装置を装着して真空断熱材を吸引する方法を説明するための部分断面図（Ｂ）同実施の形態において、壁部の開口部に吸引装置を装着して真空断熱材を吸引する変形例を説明するための部分断面図（Ｃ）同実施の形態において、壁部の開口部に吸引ノズルを装着して真空断熱材を吸引する方法を説明するための部分断面図(A) Partial sectional view for explaining a method of sucking the vacuum heat insulating material by attaching a suction device to the opening of the wall in the same embodiment (B) Opening of the wall in the same embodiment (C) Partial sectional view for explaining a modified example in which the suction device is attached to suck the vacuum heat insulating material. In the same embodiment, a suction nozzle is attached to the opening of the wall portion to suck the vacuum heat insulating material. Partial sectional view for explaining the method （Ａ）本発明の第７の実施の形態にかかる真空断熱材の構造を示す平面図（Ｂ）同実施の形態の真空断熱材の断面図(A) Top view which shows the structure of the vacuum heat insulating material concerning the 7th Embodiment of this invention (B) Sectional drawing of the vacuum heat insulating material of the same embodiment 同実施の形態における真空断熱材を用いた冷蔵庫の真空断熱材の解体回収方法を説明するための工程図Process drawing for demonstrating the disassembly collection | recovery method of the vacuum heat insulating material of the refrigerator using the vacuum heat insulating material in the embodiment （Ａ）本発明の第８の実施の形態にかかる真空断熱材の構造を示す断面図（Ｂ）同実施の形態において、真空断熱材の変形例を示す断面図(A) Sectional drawing which shows the structure of the vacuum heat insulating material concerning the 8th Embodiment of this invention (B) Sectional drawing which shows the modification of a vacuum heat insulating material in the same embodiment 従来の冷蔵庫の解体回収のフローチャートFlow chart of conventional refrigerator dismantling and recovery

符号の説明Explanation of symbols

１ 冷蔵庫
２ 壁部
３ 扉部
４ 真空断熱材
５ マーク
６ 外板
７ 内板
８ 充填断熱材
９，１０ 密封糊代
１１ 接着剤
１２ 切断部
１３ 凹溝
１４ 剥離部
１５ ヒータ線（加熱手段）
１６ 第１外皮
１７ 芯材
１８ 遮蔽物
１９ 溶融部
２０ 上部
２１ 切断面部
２２ 凹部
２３ 開口部
２４ 空気導入孔
２５ 吸引装置
２６ 吸引ノズル
２７ 加圧空気ノズル
２８ 非接着部
３０ ２重真空断熱材
３１ 第２外皮
３３ 開封部
３４ 弾性体
３５ 脱気針
３６ 弾性膜 DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Wall part 3 Door part 4 Vacuum heat insulating material 5 Mark 6 Outer plate 7 Inner plate 8 Filling heat insulating material 9,10 Sealing margin 11 Adhesive 12 Cutting part 13 Groove 14 Peeling part 15 Heater wire (heating means)
16 First skin 17 Core material 18 Shielding material 19 Melting part 20 Upper part 21 Cutting surface part 22 Recessed part 23 Opening part 24 Air introduction hole 25 Suction device 26 Suction nozzle 27 Pressurized air nozzle 28 Non-adhesive part 30 Double vacuum heat insulating material 31 First 2 outer skin 33 opening part 34 elastic body 35 deaeration needle 36 elastic membrane

Claims (7)

冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、前記冷蔵庫内に面する内板と、前記冷蔵庫の外部に面する外板と、前記内板と前記外板との間に装着された真空断熱材または前記真空断熱材と充填断熱材の一方を含む構成を有し、
前記冷蔵庫を解体回収するときに、前記外板から前記真空断熱材の第１外皮まで開口部を設け、前記開口部より前記真空断熱材の芯材を吸引回収することを特徴とする真空断熱材の解体回収方法。 A wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the refrigerator, an outer plate facing the outside of the refrigerator, the inner plate and the outer plate A structure including one of the vacuum heat insulating material or the vacuum heat insulating material and the filling heat insulating material mounted between
When disassembling and recovering the refrigerator, an opening is provided from the outer plate to the first outer skin of the vacuum heat insulating material, and the vacuum heat insulating material is sucked and recovered from the opening through the opening. Dismantling collection method. 吸引回収する前記開口部より移動自在の吸引ノズルを差し込み、前記真空断熱材の前記芯材を吸引回収することを特徴とする請求項１に記載の真空断熱材の解体回収方法。   The vacuum heat insulating material dismantling and recovery method according to claim 1, wherein a suction nozzle movable from the opening for suction recovery is inserted, and the core material of the vacuum heat insulating material is suctioned and recovered. 吸引回収する前記開口部の周辺に、空気導入孔を一つ以上設けたことを特徴とする請求項１又は２に記載の真空断熱材の解体回収方法。   The method for dismantling and recovering a vacuum heat insulating material according to claim 1 or 2, wherein one or more air introduction holes are provided around the opening for suction and recovery. 前記空気導入孔より、加圧空気を吹き込みながら、前記芯材の吸引回収を行うことを特徴とする請求項３に記載の真空断熱材の解体回収方法。   The vacuum heat insulating material dismantling and recovery method according to claim 3, wherein the core material is sucked and recovered from the air introduction hole while pressurized air is blown. 冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、前記冷蔵庫内に面する内板と、前記冷蔵庫の外部に面する外板と、前記内板と前記外板との間に装着された真空断熱材および充填断熱材とにより構成され、
前記冷蔵庫を解体回収するときに、前記冷蔵庫の壁部と扉部の少なくとも一方を前記冷蔵庫から切断して前記壁部または前記扉部の各辺の断面部を露出させた後、線状の加熱手段を前記内板と前記外板との間の前記充填断熱材が取り付けられた部分に配置し、前記充填断熱材を加熱溶融させながら切断して前記真空断熱材を取り出すことを特徴とする真空断熱材の解体回収方法。 A wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the refrigerator, an outer plate facing the outside of the refrigerator, the inner plate and the outer plate Composed of vacuum insulation material and filling insulation material installed between
When the refrigerator is dismantled and collected, at least one of the wall portion and the door portion of the refrigerator is cut from the refrigerator to expose a cross-sectional portion of each side of the wall portion or the door portion, and then linear heating is performed. A vacuum is characterized in that a means is disposed between the inner plate and the outer plate where the filling heat insulating material is attached, and the filling heat insulating material is cut while being heated and melted to take out the vacuum heat insulating material. Insulation material dismantling and recovery method. 冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、前記冷蔵庫内に面する内板と、前記冷蔵庫の外部に面する外板と、前記内板と前記外板との間に装着された真空断熱材とを含み、
前記冷蔵庫を解体回収するときに、前記扉部を除いた前記冷蔵庫の前記壁部の上面部または底面部を切断した後、前記内板と前記外板との間に装着された前記真空断熱材の真空を破壊することなく、前記真空断熱材を回収することを特徴とする真空断熱材の解体回収方法。 A wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the refrigerator, an outer plate facing the outside of the refrigerator, the inner plate and the outer plate And vacuum insulation material installed between
The vacuum heat insulating material attached between the inner plate and the outer plate after cutting the upper surface portion or the bottom surface portion of the wall portion of the refrigerator excluding the door portion when the refrigerator is disassembled and collected. A method for dismantling and recovering a vacuum heat insulating material, wherein the vacuum heat insulating material is recovered without breaking the vacuum. 冷蔵および冷凍の少なくとも一つの機能を有する冷蔵庫を構成する壁部と扉部とが、前記冷蔵庫内に面する内板と、前記冷蔵庫の外部に面する外板と、前記内板と前記外板との間に装着された真空断熱材と充填断熱材とを含み、前記真空断熱材は片側または両側に遮蔽物を介して前記外板および前記充填断熱材に固定された構成を有し、
前記冷蔵庫を解体回収するときに、少なくとも前記外板を切断後、前記真空断熱材と前記遮蔽物を分離しながら前記真空断熱材を取り出すことを特徴とする真空断熱材の解体回収方法。 A wall portion and a door portion constituting a refrigerator having at least one function of refrigeration and freezing, an inner plate facing the refrigerator, an outer plate facing the outside of the refrigerator, the inner plate and the outer plate A vacuum heat insulating material and a filling heat insulating material mounted between, and the vacuum heat insulating material has a structure fixed to the outer plate and the filling heat insulating material via a shield on one side or both sides,
When disassembling and collecting the refrigerator, the vacuum heat insulating material is taken out while separating the vacuum heat insulating material and the shielding object after cutting the outer plate, and a vacuum heat insulating material dismantling and collecting method is provided.
JP2003303887A 2003-08-28 2003-08-28 Dismantling and recovery method for vacuum insulation Expired - Fee Related JP4313122B2 (en)

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