JP4339324B2 - Railway vehicle structure - Google Patents

Railway vehicle structure Download PDF

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JP4339324B2
JP4339324B2 JP2006030643A JP2006030643A JP4339324B2 JP 4339324 B2 JP4339324 B2 JP 4339324B2 JP 2006030643 A JP2006030643 A JP 2006030643A JP 2006030643 A JP2006030643 A JP 2006030643A JP 4339324 B2 JP4339324 B2 JP 4339324B2
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panel
heat insulating
sound
vehicle
sound absorbing
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JP2007223340A (en
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英和 中元
征二郎 戸取
健 川崎
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Hitachi 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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Description

本発明は真空断熱パネルと吸音材を用いた鉄道車両またはモノレール車両に関するものである。 The present invention relates to a railway vehicle or a monorail vehicle using a vacuum heat insulating panel and a sound absorbing material.

近年、輸送車両では製作の合理化及び高速化に伴う軽量化と耐圧性向上の観点から、軽合金製の大形中空型材を利用した車体（ダブルスキン構体）が製作されている。これらの車体は軽量化と耐圧性向上を図るために側部や屋根構体が曲面を有する構造となっている。例えばこのような構体は特許文献１に記載された車両である。 In recent years, a vehicle body (double skin structure ) using a large-sized hollow type material made of a light alloy has been manufactured in a transportation vehicle from the viewpoint of weight reduction and pressure resistance improvement accompanying rationalization and speeding up of production. These vehicle bodies have a structure in which the side portions and the roof structure have curved surfaces in order to reduce weight and improve pressure resistance. For example, such a structure is a vehicle described in Patent Document 1.

このような車両構体に用いられる断熱構造としては、現状の主流は構体の室内側とぎ装用内張りの間にグラスウールなどの繊維状の断熱材を貼付けて車体外部からの熱の侵入を遮断する構造がとられている。しかし、このような構造をダブルスキン構体に適用すると壁の厚さが厚くなり、とくに鉄道車両においては車内空間を確保する観点から出来るだけ薄くするように求められている。このために断熱性能の優れた材料を使用するようになっている。これらの要求に対応するために下記特許文献１、特許文献２のような真空断熱材を使用した車体構造が検討されている。   As a heat insulation structure used for such a vehicle structure, the current mainstream structure is a structure in which a fiber heat insulating material such as glass wool is pasted between the indoor side of the structure and the lining for the fitting to block heat from entering from the outside of the vehicle body. It has been taken. However, when such a structure is applied to a double skin structure, the thickness of the wall increases. In particular, railway vehicles are required to be as thin as possible from the viewpoint of securing the interior space. For this reason, a material having excellent heat insulation performance is used. In order to meet these demands, a vehicle body structure using a vacuum heat insulating material such as Patent Document 1 and Patent Document 2 below has been studied.

また、鉄道車両の構造体に制振性能を持たせて車内の騒音を低減する方法が下記非特許文献３に記載されている。本方式では騒音に関しては効果が期待できるが断熱性を確保するための断熱材の厚さが厚くなり、広い車内空間を確保する点で課題となっている。
特開平１０−２５８７３６号公報 特開平１１−１００９１５号公報 「車両技術」２００１／９、Ｎｏ．２２２ ｐ２２−３１ Non-Patent Document 3 below describes a method for reducing noise in a vehicle by imparting damping performance to the structure of a railway vehicle. Although this method can be expected to be effective in terms of noise, the thickness of the heat insulating material for ensuring heat insulation is increased, which is a problem in terms of ensuring a wide interior space.
Japanese Patent Laid-Open No. 10-258736 Japanese Patent Laid-Open No. 11-100915 “Vehicle Technology” 2001/9, No. 222 p22-31

上記従来技術において、真空断熱材を構体に取り付ける場合、構体の表面に真空断熱材を直接押さえつけて沿わせようとすると真空断熱材の芯材に局部的に大きな力が加わり、芯材の変形、断熱材の外包容器が破損し、気密性が失われ断熱性能が低下するという問題がある。   In the above prior art, when attaching the vacuum heat insulating material to the structure, if the vacuum heat insulating material is directly pressed against the surface of the structure, a large force is locally applied to the core material of the vacuum heat insulating material. There is a problem that the outer packaging container of the heat insulating material is damaged, the airtightness is lost, and the heat insulating performance is lowered.

また、構体内側のレール部を利用して薄板のバネ材で真空断熱材の表面を押し付けて固定する方法が提案されているが、長期間の押さえつけにより外包容器と芯材が変形して沈み込み、最終的には亀裂の発生が懸念されている。   In addition, a method of pressing and fixing the surface of the vacuum heat insulating material with a thin spring material using the rail part inside the structure has been proposed, but the outer container and the core material deform and sink due to long-term pressing. Finally, there are concerns about the occurrence of cracks.

さらに、ダブルスキン構体の中に制振材を貼付けて車内騒音を低減する方法においては構体の重量増加と断熱材の厚さが問題となり、断熱吸音機能の薄肉化が求められている。   Furthermore, in the method of attaching a vibration damping material to a double skin structure to reduce vehicle interior noise, an increase in the weight of the structure and the thickness of the heat insulating material are problems, and a thin heat insulating sound absorbing function is required.

上記目的は、２枚の板とそれらを連結するリブで形成される軽量合金製のダブルスキン構造体と、ダブルスキン構造体の片面側の車内側に、積層される断熱吸音層を備えた断熱吸音構造体において、前記断熱吸音層は、前記ダブルスキン構造体から車内側に向けて、弾力性のある吸音材、真空断熱パネル、内装材パネルを、順次積層しているものであること、によって達成できる。 The above object is to provide a double-skin structure made of a lightweight alloy formed by two plates and ribs connecting them, and a heat-insulating layer provided with a heat-insulating sound-absorbing layer laminated on the inner side of one side of the double-skin structure In the sound absorbing structure, the heat insulating sound absorbing layer is formed by sequentially laminating an elastic sound absorbing material, a vacuum heat insulating panel , and an interior material panel from the double skin structure toward the inside of the vehicle. Can be achieved.

または、２枚の板とそれらを連結するリブで形成される軽量合金製のダブルスキン構造体と、ダブルスキン構造体の片面側の車内側に、積層される断熱吸音層を備えた断熱吸音構造体において、前記断熱吸音層は、剛性を有し、前記積層方向に平板状の真空断熱パネルと、前記積層方向の前記真空断熱パネルの両面に積層される繊維状不織布または弾力性を有する発泡体からなる吸音材と、前記断熱吸音構造体の車内側にあり、該断熱吸音構造体を覆う内装材パネルと、からなるものであること、によって達成できる。   Or a heat-insulating sound absorbing structure comprising a double-skin structure made of a lightweight alloy formed by two plates and ribs connecting them, and a heat-insulating sound-absorbing layer laminated on the inner side of one side of the double-skin structure In the body, the heat insulating sound absorbing layer has rigidity, a flat vacuum heat insulating panel in the laminating direction, and a fibrous nonwoven fabric or elastic foam laminated on both surfaces of the vacuum heat insulating panel in the laminating direction. It can be achieved by comprising a sound-absorbing material comprising: and an interior material panel that is inside the vehicle and covers the heat-absorbing sound-absorbing structure.

これによれば、ダブルスキン構造の軽量合金構造体の片面の車内側に、吸音材、真空断熱材、内装材パネルを順次積層することにより、ダブルスキン構造体側から透過してくる騒音を吸音材の弾性と真空断熱パネルの剛性の相互作用により透過損失を向上できるものである。   According to this, a sound absorbing material, a vacuum heat insulating material, and an interior panel are sequentially laminated on the inner side of one side of a lightweight alloy structure with a double skin structure, thereby absorbing noise transmitted from the double skin structure side. The transmission loss can be improved by the interaction between the elasticity of the vacuum and the rigidity of the vacuum heat insulation panel.

以下、図面に基づき、本発明の実施例を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１は、本発明の第１の実施例に係る断熱吸音構造体の断面構造を示す。全体を符号１ａで示す断熱吸音構造体は、ダブルスキン構造体１０と、ダブルスキン構造体１０の一方の面である車両の室内側面に積層される断熱吸音層２０を有する。   FIG. 1 shows a cross-sectional structure of a heat insulating sound absorbing structure according to a first embodiment of the present invention. The heat insulating sound absorbing structure generally indicated by reference numeral 1 a has a double skin structure 10 and a heat insulating sound absorbing layer 20 laminated on the vehicle interior side surface, which is one surface of the double skin structure 10.

ダブルスキン構造体１０は、例えばアルミニウム合金を押出し成形してつくられる形材であって、平行する２枚の板材１１，１２をトラス構造のリブ１３で連結した断面構造を有する。   The double skin structure 10 is a profile formed by extruding an aluminum alloy, for example, and has a cross-sectional structure in which two parallel plate members 11 and 12 are connected by a rib 13 of a truss structure.

断熱吸音層２０は、ダブルスキン構造体１０の車内側に設置されるもので、真空断熱パネル２１の両側を繊維状不織布または発泡体で形成される弾力性のある吸音材２２，２３で挟み込んだ構造を有する。つまり、ダブルスキン構造体の車内側に、吸音材２２、真空断熱パネル２１、吸音材２３が順次積層されている。吸音材２３の車内側には内装材パネル２４が積層される。   The heat insulating sound absorbing layer 20 is installed on the inner side of the double skin structure 10, and both sides of the vacuum heat insulating panel 21 are sandwiched between elastic sound absorbing materials 22 and 23 formed of fibrous nonwoven fabric or foam. It has a structure. That is, the sound absorbing material 22, the vacuum heat insulating panel 21, and the sound absorbing material 23 are sequentially laminated on the vehicle interior side of the double skin structure. An interior material panel 24 is laminated on the vehicle interior side of the sound absorbing material 23.

真空断熱パネル２１は、芯材を気密性のあるフィルムで覆って概略矩形状に形成したパネルであって、内部を真空にして断熱性を高めたパネルである。このパネルは６ｍｍの厚さ寸法を有する。真空断熱材２１の厚さは一実施例として示したもので、この値に限定されるものではない。必要に応じて溝を設けて、曲面部にも容易に密着できる構造とする。   The vacuum heat insulation panel 21 is a panel formed by covering a core material with an airtight film and forming a substantially rectangular shape, and is a panel in which the inside is evacuated to improve heat insulation. This panel has a thickness dimension of 6 mm. The thickness of the vacuum heat insulating material 21 is shown as an example, and is not limited to this value. If necessary, a groove is provided so that it can be easily adhered to the curved surface portion.

断熱吸音層２０の真空断熱パネル２１と片面側の吸音材（繊維状不織布）２３との接触面、吸音材２３と内装材パネル２４との接触面、真空断熱パネル２１の他面側と吸音材２２との接触面には、それぞれ相対的移動防止手段がある．これは，接着剤で接着されるか、または両面テープで接着されている。または、機械的な手段（機構）で構成される。   Contact surface between the vacuum heat insulating panel 21 and the sound absorbing material (fibrous nonwoven fabric) 23 on one side of the heat insulating sound absorbing layer 20, contact surface between the sound absorbing material 23 and the interior material panel 24, and the other surface side of the vacuum heat insulating panel 21 and the sound absorbing material. Each contact surface with 22 has a relative movement preventing means. It is glued with an adhesive or with double-sided tape. Alternatively, it is constituted by mechanical means (mechanism).

この機械的手段は、一般にマジックテープ（登録商標）と呼ばれるものからなる。マジックテープの一方の部材は接触面の一方の部材に取り付けられ、他方の部材は接触面の他方の部材に取り付けられる。具体的に説明すると、一方の部材には他方の部材に向けて突出する突出部が多数あり、前記他方の部材には前記突出部が入る凹部が多数ある。   This mechanical means consists of what is generally called a magic tape (registered trademark). One member of the magic tape is attached to one member of the contact surface, and the other member is attached to the other member of the contact surface. More specifically, one member has a large number of protrusions that protrude toward the other member, and the other member has a large number of recesses into which the protrusions enter.

この相対的移動防止手段（機構）は、ダブルスキン構造体１０の振動によって、断熱吸音層２０の各部材が振動して接触面での騒音の発生を防止するための手段（機構）である。   This relative movement preventing means (mechanism) is a means (mechanism) for preventing each member of the heat insulating sound absorbing layer 20 from vibrating due to the vibration of the double skin structure 10 and generating noise on the contact surface.

吸音材２２とダブルスキン構造体１０の板１２とは接触しているのみであり、前記相対的移動防止手段（機構）はない。   The sound absorbing material 22 and the plate 12 of the double skin structure 10 are only in contact, and there is no relative movement preventing means (mechanism).

内装材パネル２４は、アルミ板の表面に樹脂シート等が貼り付けたもので、パネル２４の板厚寸法は約２ｍｍである。また、内装材パネル２４は薄いアルミ板の２枚の間に樹脂を充填したものや、発泡させた断熱材を挟み込んだものであってもよい。また、アルミ板は表面が平らである必要はない。表面が波状の凹凸があってもよい。この凹凸部材はアルミ板と同一材でも別部材でもよい。   The interior material panel 24 is made by attaching a resin sheet or the like to the surface of an aluminum plate, and the thickness of the panel 24 is about 2 mm. Further, the interior material panel 24 may be one in which a resin is filled between two thin aluminum plates, or one in which a foamed heat insulating material is sandwiched. Also, the aluminum plate need not have a flat surface. The surface may have wavy unevenness. This uneven member may be the same material as the aluminum plate or a different member.

断熱吸音層の吸音材２２は、ガラス状繊維の繊維状不織布で、厚さ８ｍｍである。   The sound absorbing material 22 of the heat insulating sound absorbing layer is a fibrous nonwoven fabric of glassy fibers and has a thickness of 8 mm.

断熱吸音層の吸音材２３は、弾力性を有する発泡体であり、厚さ寸法は８ｍｍである。   The sound absorbing material 23 of the heat insulating sound absorbing layer is a foam having elasticity, and the thickness dimension is 8 mm.

ダブルスキン構造体１０の厚さ寸法ｔ１は４０ｍｍであり、断熱吸音層２０の厚さ寸法ｔ２は２４ｍｍ、断熱吸音構造体１ａの構え厚さ寸法Ｔ１は６４ｍｍとなった。 Thickness t 1 of the double skin structure 10 is 40 mm, thickness t 2 of the heat insulating acoustical layer 20 is 24 mm, poised thickness T 1 of the heat insulating acoustical structure 1a became 64 mm.

次に、ダブルスキン構造体１０への断熱吸音層２０の取り付け構造を図４により説明する。断熱吸音層２０の内装材パネル２４に、吸音材２３が接着剤で接着されている。吸音材２３と真空断熱パネル２１とは接着材で接着されている。真空断熱パネル２１と吸音材２２とは接着材で接着されている。   Next, a structure for attaching the heat insulating sound absorbing layer 20 to the double skin structure 10 will be described with reference to FIG. The sound absorbing material 23 is bonded to the interior material panel 24 of the heat insulating sound absorbing layer 20 with an adhesive. The sound absorbing material 23 and the vacuum heat insulating panel 21 are bonded with an adhesive. The vacuum heat insulating panel 21 and the sound absorbing material 22 are bonded with an adhesive.

上記のように断熱吸音層２０を製作した後、断熱吸音層２０をダブルスキン構造体１０に取り付ける。断熱吸音層２０の内装材パネル２４の外周部はダブルスキン構造体１０側の吸音材２２，２３，真空断熱パネル２１の外周部よりも大きい。ダブルスキン構造体１０の室内側には内装材パネル２４を固定するためのカーテンレール１２１が突出している。このカーテンレール１２１は周知のように先端側が相手のカーテンレール１２１に向けて突出している。この突出部にＴ型ボルト１２２の頭部がかかる。Ｔ型ボルト１２２をナット１２３で車内側から締結する。ナット１２３を締結する前にＴ型ボルト１２２はカーテンレール１２１に取り付けてある。１２５は断熱材であり、厚さは２ｍｍである。カーテンレール１２１の突出高さは約２０ｍｍである。一方の断熱吸音層２０の厚さは他方の断熱吸音層２０よりも厚い。   After the heat insulating sound absorbing layer 20 is manufactured as described above, the heat insulating sound absorbing layer 20 is attached to the double skin structure 10. The outer peripheral portion of the interior material panel 24 of the heat insulating sound absorbing layer 20 is larger than the outer peripheral portions of the sound absorbing materials 22 and 23 and the vacuum heat insulating panel 21 on the double skin structure 10 side. A curtain rail 121 for fixing the interior material panel 24 protrudes on the indoor side of the double skin structure 10. As is well known, the leading end of the curtain rail 121 projects toward the mating curtain rail 121. The head of the T-type bolt 122 is applied to the protruding portion. T-type bolt 122 is fastened from the vehicle inner side with nut 123. Before the nut 123 is fastened, the T-type bolt 122 is attached to the curtain rail 121. 125 is a heat insulating material, and the thickness is 2 mm. The protruding height of the curtain rail 121 is about 20 mm. The thickness of one heat insulating sound absorbing layer 20 is thicker than the other heat insulating sound absorbing layer 20.

これによれば、断熱吸音層２０は複数の部材からなるが、一体に固定されているので、断熱吸音層２０のダブルスキン構造体への取り付け作業を簡単にできる。内装材パネル２４、真空断熱パネル２１、吸音材２２，２３は軽量であるので、一体にしても取り扱いを容易にできる。   According to this, although the heat insulation sound absorption layer 20 consists of a some member, since it is being fixed integrally, the attachment operation | work to the double skin structure of the heat insulation sound absorption layer 20 can be simplified. Since the interior material panel 24, the vacuum heat insulation panel 21, and the sound absorbing materials 22 and 23 are lightweight, they can be handled easily even if they are integrated.

図３は、従来構造の断熱吸音構造体を示す。この断熱吸音構造体１ｃは、ダブルスキン構造体１０と吸音層５０を有する。 FIG. 3 shows a conventional heat insulating sound absorbing structure. The heat insulating sound absorbing structure 1 c includes a double skin structure 10 and a sound absorbing layer 50.

ダブルスキン構造体１０は、図１に示すものと同様であって、アルミニウム合金の押出し形材である。吸音層５０は、例えばガラス繊維系の吸音断熱材５１を有する。吸音断熱材５１の車内側には内装材パネル２４が取り付けられる。本パネル２４は図１に示すものと同様のものである。 The double skin structure 10 is the same as that shown in FIG. 1 and is an extruded shape of an aluminum alloy. The sound absorbing layer 50 includes, for example, a glass fiber sound absorbing heat insulating material 51. The interior material panel 24 is attached to the vehicle interior side of the sound absorbing heat insulating material 51. The panel 24 is the same as that shown in FIG.

ダブルスキン構造体１０の厚さ寸法ｔ１は、図１のものと同様に４０ｍｍである。また、内装材パネル２４を含む吸音層５０の厚さ寸法ｔ３は５０ｍｍである。 The thickness dimension t 1 of the double skin structure 10 is 40 mm as in FIG. The thickness dimension t 3 of the backing layer 50 including the interior material panel 24 is 50 mm.

したがって、全体の構え厚さ寸法Ｔ３は９０ｍｍとなる。 Therefore, poised thickness T 3 of the whole becomes 90 mm.

これに対して、図１に示す実施例１のものは、構え寸法Ｔ１は６４ｍｍであって、厚さ寸法が大幅に削減されている。 In contrast, those of the first embodiment shown in FIG. 1, is located in the dimension T 1 is a 64 mm, thickness is significantly reduced.

図５は、実施例１のものと、図３に示す従来のものとを遮音性能で比較したものである。   FIG. 5 is a comparison of the sound insulation performance between the first embodiment and the conventional one shown in FIG.

図５は、横軸に音響の周波数を、縦軸に音響の透過損失をとったものである。   In FIG. 5, the horizontal axis represents the sound frequency, and the vertical axis represents the sound transmission loss.

実施例の構造体は、従来に比較して、薄い構え厚さ寸法でありながら、音響透過損失を大きくとることができる。すなわち、遮音特性に優れていることが実験により確認された。   The structure of the embodiment can take a large sound transmission loss while having a thin stance thickness as compared with the conventional structure. That is, it was confirmed by experiments that the sound insulation characteristics are excellent.

これは、弾性を有する吸音層の弾性バネ作用と真空断熱材剛性との相互効果によりマスダンパが形成され、音響透過損失が向上したものである。   This is because the mass damper is formed by the mutual effect of the elastic spring action of the sound-absorbing layer having elasticity and the rigidity of the vacuum heat insulating material, and the sound transmission loss is improved.

また、真空断熱材を備えることにより、従来例に比べて２倍の断熱効果を有することが、実験により確認された。   Moreover, it was confirmed by experiment that it has a heat insulation effect twice as much as a conventional example by providing a vacuum heat insulating material.

図２に本発明の他の実施例を示す。本実施例の断熱吸音層１ｂにあっては、真空断熱パネル２１の位置を内装パネル２４の直下に設けている。吸音材３１は実施例１で使用した繊維状不織布２２と同一材質である。厚さ寸法は１６ｍｍである。真空断熱パネル２１、内装パネル２４、ダブルスキン構造体１０は実施例１と同様である。 FIG. 2 shows another embodiment of the present invention. In the heat insulation sound-absorbing layer 1b of the present embodiment, the position of the vacuum heat insulation panel 21 is provided directly below the interior panel 24. The sound absorbing material 31 is the same material as the fibrous nonwoven fabric 22 used in Example 1. The thickness dimension is 16 mm. The vacuum heat insulating panel 21, the interior panel 24, and the double skin structure 10 are the same as those in the first embodiment.

ダブルスキン構造体の厚さ寸法ｔ１は実施例１と同様に４０ｍｍであり、吸音層３０の厚さ寸法が実施例１と同じ２４ｍｍである。 Thickness t 1 of the double skin structure is 40mm in the same manner as in Example 1, the thickness of the backing layer 30 is the same 24mm as in Example 1.

比較対象として、前述した比較モデルの図３を使用して同一サイズの試験片で音響透過損失を測定した。   As a comparison object, the sound transmission loss was measured with a test piece of the same size using FIG. 3 of the comparative model described above.

その結果を図６に示す。図より、構え厚さ寸法Ｔ１が９０ｍｍから６４ｍｍと２６ｍｍ薄くなったにもかかわらず吸音材の弾性バネ作用と真空断熱パネルの剛性との相互効果によりマスダンパが形成され、音響透過損失は向上していることが分かる。さらに図５と比較して１ｋＨｚ以下の低周波域で音響透過損失が向上している。 The result is shown in FIG. From the figure, despite the fact that the thickness T1 of the stance is reduced from 90 mm to 64 mm and 26 mm, a mass damper is formed by the mutual effect of the elastic spring action of the sound absorbing material and the rigidity of the vacuum heat insulating panel , and the sound transmission loss is improved. I understand that. Furthermore, the sound transmission loss is improved in a low frequency region of 1 kHz or less as compared with FIG.

従って、低周波域の騒音を除去したい場合は本実施例の構成にすることが有効である。本実施例の吸音材３１は弾力性の発泡体でもよく、また、繊維状不織布と発泡体のいずれかであって、その種類を異ならせて、複数層重ねることもできる。   Therefore, the configuration of this embodiment is effective when it is desired to remove low frequency noise. The sound absorbing material 31 of the present embodiment may be an elastic foam, or may be a fibrous nonwoven fabric or a foam, and a plurality of layers may be stacked with different types.

また、断熱性能についても実施例１と同様の性能のものを使用しているので同等の性能を確保できることは明らかである。   Moreover, since the thing of the performance similar to Example 1 is used also about heat insulation performance, it is clear that an equivalent performance can be ensured.

容積効率が問題となる輸送車両（例えば、鉄道車両またはモノレール車両）の断熱遮音構体の構造に適用可能である。   The present invention can be applied to the structure of a heat insulating sound insulation structure of a transportation vehicle (for example, a railway vehicle or a monorail vehicle) in which volumetric efficiency is a problem.

本発明の真空断熱材と吸音材の積層関係示す横断面図。The cross-sectional view which shows the lamination | stacking relationship of the vacuum heat insulating material and sound-absorbing material of this invention. 本発明の他の実施例の真空断熱材と吸音材の積層関係示す横断面図。The cross-sectional view which shows the lamination | stacking relationship of the vacuum heat insulating material of another Example of this invention, and a sound absorption material. 従来の車両断面構造を示す横断面図。The cross-sectional view which shows the conventional vehicle cross-section. 本発明の一実施例の断熱吸音層のダブルスキン構造体への取り付け構造を示す断面図。Sectional drawing which shows the attachment structure to the double skin structure of the heat insulation sound absorption layer of one Example of this invention. 本発明の実施例と従来構造の音響透過損失の比較結果。The comparison result of the sound transmission loss of the Example of this invention and a conventional structure. 本発明の他の実施例と従来構造の音響透過損失の比較結果。The comparison result of the sound transmission loss of the other Example of this invention and a conventional structure.

符号の説明Explanation of symbols

１ａ 断熱吸音構造体
１０ ダブルスキン構造体
２１ 真空断熱パネル
２２，２３ 吸音材
２４ 内装パネル
５１ ガラス繊維系の吸音断熱材 DESCRIPTION OF SYMBOLS 1a Heat insulation sound absorption structure 10 Double skin structure 21 Vacuum heat insulation panel 22,23 Sound absorption material 24 Interior panel 51 Glass fiber type sound absorption heat insulation material

Claims (2)

２枚の板とそれらを連結するリブで形成される軽量合金製のダブルスキン構造体によって側部および屋根構体が構成される鉄道車両構体の車内側の面に断熱吸音層が備えられる鉄道車両構体において、
前記断熱吸音層は前記ダブルスキン構造体の車内側の面から車内側に向けて、繊維状不織布または弾力性のある発泡体からなる吸音材、剛性のある平板状の真空断熱パネル、前記吸音材、内装材パネルの順に積層されており、
前記断熱吸音層を構成する前記吸音材と前記真空断熱パネルと前記吸音材と前記内装材パネルとの各々の接触面に相対的移動防止手段が備えられると共に、前記ダブルスキン構造体の車内側の面に備えられるカーテンレール状のレールに、前記内装パネルが車内側から締結されること、
を特徴とする鉄道車両構体。 A railway vehicle structure in which a heat insulating sound absorbing layer is provided on the inner surface of the railway vehicle structure in which the side portion and the roof structure are formed by a double skin structure made of a lightweight alloy formed by two plates and ribs connecting them. In
The heat-absorbing sound-absorbing layer is a sound-absorbing material made of a fibrous nonwoven fabric or an elastic foam from the inner surface of the double skin structure toward the inner side of the vehicle, a rigid flat-plate vacuum heat-insulating panel, and the sound-absorbing material Are laminated in the order of the interior panel ,
Relative movement prevention means is provided on each contact surface of the sound absorbing material, the vacuum heat insulating panel, the sound absorbing material, and the interior material panel constituting the heat insulating sound absorbing layer, and is provided on the inner side of the double skin structure. The interior panel is fastened to the curtain rail rail provided on the surface from the inside of the vehicle;
A railway vehicle structure characterized by ２枚の板とそれらを連結するリブで形成される軽量合金製のダブルスキン構造体によって側部および屋根構体が構成される鉄道車両構体の車内側の面に断熱吸音層が備えられる鉄道車両構体において、
前記断熱吸音層は前記ダブルスキン構造体の車内側の面から車内側に向けて、繊維状不織布または弾力性のある発泡体からなる吸音材、剛性のある平板状の真空断熱パネル、内装材パネルの順に積層されており、
前記断熱吸音層を構成する前記吸音材と前記真空断熱パネルと前記内装材パネルとの各々の接触面に相対的移動防止手段が備えられると共に、前記ダブルスキン構造体の車内側の面に備えられるカーテンレール状のレールに、前記内装パネルが車内側から締結されること、
を特徴とする鉄道車両構体。 A railway vehicle structure in which a heat insulating sound absorbing layer is provided on the inner surface of the railway vehicle structure in which the side portion and the roof structure are formed by a double skin structure made of a lightweight alloy formed by two plates and ribs connecting them. In
The heat-absorbing sound-absorbing layer is a sound-absorbing material made of a fibrous nonwoven fabric or an elastic foam from the vehicle inner surface of the double skin structure toward the vehicle inner side, a rigid flat vacuum insulating panel, and an interior material panel. Are stacked in this order,
Wherein with the relative movement prevention means on each of the contact surface between the absorbing material and the vacuum insulation panel and the front SL interior material panel constituting the heat insulating acoustical layer is provided, provided in the vehicle-side surface of the double skin structure The interior panel is fastened to the curtain rail-shaped rail from the inside of the vehicle,
A railway vehicle structure characterized by
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DE102011016792A1 (en) 2011-04-12 2012-10-18 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Motor vehicle i.e. passenger car, has air-filled free space formed between multi-part porous filling core or air-tight film and roof lining, where filling core and air-tight film are arranged between outer roof membrane and roof lining
JP6132520B2 (en) * 2012-11-21 2017-05-24 東海旅客鉄道株式会社 Sound absorption panel
WO2014132290A1 (en) * 2013-02-27 2014-09-04 川崎重工業株式会社 Composite heat insulating material unit for railroad vehicle, and railroad vehicle using same
JP2017007097A (en) * 2015-06-16 2017-01-12 シーシーアイ株式会社 Heat insulation sound absorption material
JP6602655B2 (en) * 2015-12-07 2019-11-06 株式会社日立製作所 Railway vehicle and railway vehicle processing method
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