JP2002160631A - Body structure for railway vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a body structure for a railway vehicle of good soundproofing by reducing solid borne sound transmitted from vehicle outside into a passenger compartment and capable of reducing costs, and man-hours for attachment of an inner surface side member. SOLUTION: A structure body of the railway vehicle comprises an underframe, a side structure body, a roof structure body 4, and an end construction body. The roof structure body 4 is formed with aluminum extrusion and has a double skin structure. An adhesive layer 11 is formed on a passenger compartment side surface 4a of the roof structure body 4 and an elastic support member 12 (melamine resin elastic form) having good thermal insulation owing to the adhesive layer 11 is attached on the roof structure body 4. An adhesive layer 13 is formed on a passenger compartment side surface 12a of the elastic support member 12 and a ceiling panel 14 is attached on the elastic support member 12 by the adhesive layer 13. The ceiling panel 14, thereby, is vibro- isolative supported by the roof structure body 4 via the elastic support member 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure of a railway vehicle having a structure and an inner member disposed on the vehicle interior side of the structure.

[0002]

2. Description of the Related Art In a conventional railway vehicle body structure,
Inner surface members such as an interior plate and a ceiling plate are directly fixedly supported (rigidly supported) only by screws to a structure such as a side structure or a roof structure, and are disposed on the vehicle cabin side of the structure.

[0003]

As a result of the research conducted by the present inventors, in the above-mentioned conventional vehicle body structure of a railway vehicle,
It has been newly found that the sound outside the vehicle has a problem in that the sound propagates from the structure to the inner surface side member via the screw fastening portion and enters the vehicle interior, thereby increasing the vehicle interior noise.

Further, in the above-mentioned conventional vehicle body structure of a railway vehicle, since the inner surface member is fixed only by screws, the number of fixing points is large, the cost for mounting the inner surface member is increased, and the number of mounting steps is increased. Also has the problem of becoming large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and reduces noise transmitted from the outside of a vehicle to a vehicle interior due to solid propagation, thereby achieving high soundproofing, and reducing the mounting cost and man-hour of an inner surface member. It is an object of the present invention to provide a vehicle body structure of a railway vehicle capable of performing the above.

[0006]

A vehicle body structure of a railway vehicle according to the present invention is a vehicle body structure of a railway vehicle comprising a structure and an inner member disposed on the vehicle interior side of the structure. The elastic support member is attached to the interior surface of the vehicle by bonding, and the inner surface member is attached to the interior surface of the elastic support member by adhesion.

In the vehicle body structure of a railway vehicle according to the present invention, an elastic support member is attached to the surface of the structure inside the vehicle compartment, and an inner member is attached to the surface of the elastic support member inside the vehicle compartment. Therefore, the inner member is supported by the structure in a vibration-proof manner, and transmission of sound outside the vehicle to the inner member is suppressed. As a result, the sound transmitted from the outside of the vehicle to the vehicle interior due to solid propagation can be reduced, and the sound insulation of the vehicle can be improved. In addition, since the structure and the elastic support material and the elastic support material and the inner surface member are bonded and attached, the number of fixing points by screws or the like is reduced, and the cost and man-hour for attaching the inner surface member are reduced. can do.
In addition, since the elastic support material has heat insulating properties, it is possible to perform heat insulation between the vehicle interior space and the outside of the vehicle without newly arranging a heat insulating material, and it is possible to further reduce costs. Become.

The “structure” used in the present application is
It is assumed that the side structure, the roof structure, the wife structure and the like are included. The “inner surface member” used in the present application includes an interior board (panel), a ceiling board (panel), and the like. Further, “adhesion” used in the present application includes adhesion and adhesion.

Preferably, the inner member is mechanically supported by the structure at an end of the inner member.
As described above, the inner member is mechanically supported by the structure at the end of the inner member, so that the inner member can be reliably prevented from falling off. In the portion where the inner surface member is mechanically supported by the structure, sound outside the vehicle is transmitted through the solid body. However, the number of portions where the inner surface member is mechanically supported by the structure is determined by the conventional technology. Since the number of fixed points is reduced only by stopping, the sound pressure radiated into the cabin becomes smaller and the noise in the cabin can be reduced compared to the structure of the conventional technology, and the installation cost and man-hour can be reduced. Becomes

It is preferable that a unit unit in which a plurality of devices are modularized is attached to the structure.
In the structure of the prior art, electrical equipment such as a speaker, a fluorescent lamp, an inverter, electrical wiring connected to the electrical equipment, an air conditioning duct (airway), an outlet, and the like are usually
It was arranged using a space formed between the structure and the inner surface side member. However, when the elastic support is bonded and attached to the interior surface of the structure, and the inner member is bonded to the interior surface of the elastic support, the above-mentioned space is not formed, so that the devices are not installed. It becomes difficult to arrange. Therefore, by modularizing a plurality of devices and attaching the modularized unit unit to the structure, electrical devices such as speakers, fluorescent lamps and inverters, electrical wiring connected to the electrical devices, air conditioning ducts Equipment such as a (wind path) and an outlet can be easily arranged.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the vehicle body structure of a railway vehicle according to the present invention will be described below in detail with reference to the drawings. In the description of the drawings, the same or corresponding elements will be denoted by the same reference characters, without redundant description. In the present embodiment, an example in which the present invention is applied to a ceiling structure of a railway vehicle will be described.

First, a vehicle body structure of a railway vehicle according to the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing a vehicle body structure of a railway vehicle according to an embodiment of the present invention, and FIG. 2 is a sectional view of a main part structure. The structure of the railway vehicle 1 includes an underframe 2, a side structure 3, a roof structure 4, and a wife structure 5.
It is composed of

The roof structure 4 is made of an extruded product made of aluminum and has a double skin structure. The vehicle interior side surface 4a of the roof structure 4 is formed in a smooth surface. An adhesive layer 11 is provided on the vehicle interior side surface 4a of the roof structure 4.
The elastic support member 12 having heat insulating property is attached to the roof structure 4 by the adhesive layer 11, and the elastic support member 12 is surface-bonded to the vehicle interior side surface 4a.

The vehicle interior surface 12a of the elastic support member 12 also
Like the vehicle interior side surface 4a of the roof structure 4, it is formed in a smooth surface. Interior side surface 1 of this elastic support member 12
2a, an adhesive layer 13 is formed.
The ceiling panel (inner side member) 14 is
And the ceiling panel 14 is surface-bonded to the vehicle interior side surface 12a.

The adhesive layers 11 and 13 can be made of an adhesive, a pressure-sensitive adhesive, or a double-sided pressure-sensitive adhesive tape coated with a pressure-sensitive adhesive on both sides. In the present embodiment,
As the elastic support member 12, a plastic elastic foam (elastic foam) such as a melamine elastic foam is used.

As described above, the railway vehicle 1 according to the present embodiment.
In the vehicle body structure (ceiling structure) described above, the elastic support member 12 is attached and attached to the vehicle interior surface 4a of the roof structure 4, and the ceiling panel 14 is attached and attached to the vehicle interior surface 12a of the elastic support member 12. The ceiling panel 14 is
2 is supported by the roof structure 4 via the vibration isolator 2, and transmission of sound outside the vehicle to the ceiling panel 14 is suppressed. As a result, the sound transmitted from the outside of the vehicle to the vehicle interior due to solid propagation can be reduced, and the railway vehicle 1 can be made highly soundproof.

Further, in the vehicle body structure (ceiling structure) of the railway vehicle 1 according to the present embodiment, the roof structure 4 and the elastic support member 12 are attached by the adhesive layer 11, and the elastic support member 12 and the ceiling panel 14 Is fixed by the adhesive layer 13, the number of fixing points by screws or the like is reduced, and the cost and man-hour for mounting the ceiling panel 14 can be reduced.

Further, in the vehicle body structure (ceiling structure) of the railway vehicle 1 according to the present embodiment, the elastic support member 12 has heat insulation properties, so that no new heat insulation material is provided, and the vehicle is not provided. Insulation between the interior space and the outside of the vehicle can be performed,
Further cost reduction is possible.

The surface 4a on the vehicle interior side of the roof structure 4 is a smooth surface, the bonding area is large, and the elastic support member 12 and the ceiling panel 14 can be securely attached to the roof structure 4. it can.

Next, a modification of the vehicle body structure of the railway vehicle according to the present embodiment will be described with reference to FIG. FIG. 3 is a cross-sectional view of a main part structure showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention.

In the modification shown in FIG. 3, the roof structure 21 has a double skin structure made of stainless steel. The elastic support member 1 is provided on the vehicle interior surface 4a of the roof structure 21.
2, a ceiling panel 14 is attached to a surface 12a of the elastic support member 12 on the vehicle interior side.

As described above, also in the modification shown in FIG. 3, the ceiling panel 1 is similar to the embodiment shown in FIG.
4 is supported on the roof structure 21 via the elastic support member 12 so that sound outside the vehicle can be transmitted to the ceiling panel 14.
Is suppressed. As a result, the sound transmitted from the outside of the vehicle to the vehicle interior due to solid propagation can be reduced, and the railway vehicle 1 can be made highly soundproof. Further, costs and man-hours for attaching the ceiling panel 14 can be reduced.

Next, a modification of the vehicle body structure of the railway vehicle according to the present embodiment will be described with reference to FIGS. 4 is a cross-sectional view of a main part structure showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention. FIG. 5 is a plan view of the roof structure in FIG. It is.

The roof structure 31 includes a metal (for example, stainless steel) outer plate 32 and a metal (for example, stainless steel) skeleton 33 disposed inside the outer plate 32. As shown in FIG. 5, the skeleton portion 33 is configured by combining a plurality of bone members 34 extending in the front-rear direction of the vehicle and a plurality of bone members 35 extending in the width (left and right) direction of the vehicle in a lattice shape. ing. The outer plate 32 is fixed to the skeleton portion 33 (bone members 34 and 35) by welding or the like.

The portions of the bone members 34 and 35 on the vehicle interior side include:
The receiving portions 34a and 35a are provided.
The adhesive layer 11 is formed on 4a and 35a. The elastic support member 12 is attached to the receiving portions 34a and 35a of the bone members 34 and 35 of the roof structure 31 by bonding.
The ceiling panel 14 is attached to the second interior surface 12a by bonding.

As described above, in the modification shown in FIGS. 4 and 5, similarly to the embodiment shown in FIG. 2, the ceiling panel 14 is attached to the roof structure 31 via the elastic support member 12. As a result, the sound outside the vehicle is prevented from being transmitted to the ceiling panel 14. As a result, the sound transmitted from the outside of the vehicle to the vehicle interior due to solid propagation can be reduced, and the railway vehicle 1 can be made highly soundproof. Further, costs and man-hours for attaching the ceiling panel 14 can be reduced.

Next, a modification of the vehicle body structure of the railway vehicle according to this embodiment will be described with reference to FIG. FIG. 6 is a sectional view of a main part structure showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention. The modification shown in FIG.
The ceiling panel 14 is configured to be mechanically supported by the roof structure 4 at an end of the ceiling panel 14.

A portion of the roof structure 4 corresponding to the end of the ceiling panel 14 is provided with a guide rail 4 extending in the front-rear direction of the vehicle.
1 is provided. The guide rail 41 is formed integrally with the roof structure 4. The guide rail portion 41 has an internal guide space 42 having a substantially rectangular cross section, and a slit portion 43 present below the internal guide space 42 (toward the interior of the vehicle compartment). In addition, the guide rail portion 41 may be configured separately from the roof structure 4. When the guide rail portion 41 is formed separately from the roof structure 4 by aluminum extrusion or the like, a flange portion is provided on the guide rail portion 41, and this flange portion is welded to the vehicle interior side surface 4a of the roof structure 4 to guide the guide rail. Part 41
Can be fixed to the roof structure 4.

At a predetermined position of the guide rail 41, a holding member 45 is fixed by a mounting bolt 46 and a nut 49. The mounting bolt 46 has an integrated head portion 47 and a shaft portion 48, and the head portion 47 is fitted into the internal guide space 42 from the end of the guide rail portion 41 and extends in the internal guide space 42 in the longitudinal direction. It is movable. The shaft portion 48 passes through the slit portion 43 from the upper side to the lower side. Further, the width of the slit portion 43 is set smaller than the diameter of the head portion 47 and larger than the diameter of the shaft portion 48.
7 is prevented from falling into the vehicle interior through the slit portion 43. The height of the internal guide space 42 is larger than the thickness of the head 47, and the tip of the shaft 48 is buried in the guide rail 41 when the head 47 is seated on the bottom of the internal guide space 42. Without being set, it is set so as to be exposed to a predetermined length from the slit portion 43 toward the vehicle interior.

The holding member 45 is provided with a holding portion 45a at an end opposite to the end fixed to the guide rail portion 41, and the holding portion 45a is used to hold the ceiling panel 14 via rubber. The end will be held down. Therefore, in a state in which the end of the ceiling panel 14 is pressed by the pressing portion 45a of the press fitting 45 via the rubber, the press fitting 45 is
Is fixed to the guide rail portion 41, so that the ceiling panel 14 is mechanically supported by the roof structure 4.

As described above, also in the modification shown in FIG. 6, the ceiling panel 1 is similar to the embodiment shown in FIG.
The vibration damper 4 is supported on the roof structure 4 via the elastic support member 12 so that sound outside the vehicle is transmitted to the ceiling panel 14. As a result, the sound transmitted from the outside of the vehicle to the vehicle interior due to solid propagation can be reduced, and the railway vehicle 1 can be made highly soundproof. Further, costs and man-hours for attaching the ceiling panel 14 can be reduced.

The ceiling panel 14 is
Is mechanically supported by the roof structure 4 at the end of the ceiling panel 14, so that the ceiling panel 14 can be reliably prevented from falling off. In addition, since the ceiling panel 14 is mechanically supported via rubber, vibration is insulated, and sound outside the vehicle is transmitted to the ceiling panel 14 via the roof structure 4, the guide rail 41, the presser fitting 45, and the like. Solid propagation can be prevented.
Furthermore, since the number of portions where the ceiling panel 14 is mechanically supported by the roof structure 4 can be smaller than the number of fixing points using only screws in the related art, the mounting cost and man-hour of the ceiling panel 14 can be reduced. Can be.

Next, a modification of the vehicle body structure of the railway vehicle according to this embodiment will be described with reference to FIG. FIG. 7 is a sectional view of a main part structure showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention. In the modification shown in FIG. 7, the ceiling panel 14 has the roof structure 3 at an end of the ceiling panel 14.
1 is mechanically supported (rigidly supported).

The bone member 36 at a position corresponding to the end of the ceiling panel 14 among the bone members is formed longer on the vehicle interior side than other bone members. A receiving portion 36a is provided in a portion of the bone member 36 on the vehicle interior side, and an end of the ceiling panel 14 is fixed to the receiving portion 36a by screws or the like. 31 is rigidly supported.

As described above, also in the modification shown in FIG. 7, similarly to the embodiment shown in FIG.
4 is supported on the roof structure 31 via the elastic support member 12 so that the sound outside the vehicle can be transmitted to the ceiling panel 14.
Is suppressed. As a result, the sound transmitted from the outside of the vehicle to the vehicle interior due to solid propagation can be reduced, and the railway vehicle 1 can be made highly soundproof. Further, costs and man-hours for attaching the ceiling panel 14 can be reduced.

The ceiling panel 14 is
Is rigidly supported by the roof structure 31 at the end of
The falling off of the ceiling panel 14 can be reliably prevented. In the portion where the ceiling panel 14 is rigidly supported by the roof structure 31, sound outside the vehicle is generated by the roof structure 31, that is, the outer panel 32.
And the ceiling panel 1 via the skeleton 33 (bone member 35) and the like
4, but the number of portions where the ceiling panel 14 is rigidly supported by the roof structure 31 can be smaller than the number of fixing points of the related art using only screws.
The sound pressure level radiated into the vehicle interior is small, so that the noise in the vehicle interior can be reduced, and the mounting cost of the ceiling panel 14 can be reduced.

Next, a modification of the vehicle body structure of the railway vehicle according to this embodiment will be described with reference to FIG. FIG. 8 is a schematic configuration diagram showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention. The modification shown in FIG. 8 also has a configuration in which the ceiling panel 14 is mechanically supported by the roof structure 4 at the end of the ceiling panel 14. Although the illustration of the adhesive layer is omitted in FIG. 8, the roof structure 4 and the elastic support member 12 are attached by the adhesive layer, and the elastic support member 12 and the ceiling are similar to the above-described embodiment. Panel 1
4 is attached by an adhesive layer.

At the center and both sides of the roof structure 4 when viewed in the vehicle width direction, a pair of guide rails 41 are provided at a predetermined interval with respect to the roof structure 4. As described above, the guide rail portion 41 may be formed integrally with the roof structure 4 or may be formed separately from the roof structure 4 and fixed to the roof structure 4 by welding or the like.
A pair of guide rails 41 located at the center of the roof structure 4
In between, a heat insulating material 51 such as glass wool is adhered and fixed to the roof structure 4.

At a predetermined position of the pair of guide rails 41 located at the center of the roof structure 4, a unit 61 is fixed by mounting bolts and nuts (neither is shown). The unit 61 includes a fluorescent lamp 62, an inverter 6
3. Electrical equipment such as a speaker 64 and a part of an electrical wiring 65 connected to these electrical equipment are modularized.

Further, unit portions 71 are provided at predetermined positions of a pair of guide rail portions 41 located on both sides of the roof structure 4.
Are fixed by mounting bolts and nuts (neither is shown). The unit 71 is an air conditioning duct (airway).
72, the outlet 73 and the like are modularized.
A heat insulating material 51 such as glass wool is adhered and fixed to the roof structure 4 on the interior surface of the roof structure 4 to which the unit 71 is attached.

The roof structure 4 at the end of the ceiling panel 14
Is fixed to the guide rail 41 together with the unit 61, and is mechanically supported by the roof structure 4. Further, the ends located on both sides of the roof structure 4 among the ends of the ceiling panel 14 are unit units 71.
And is mechanically supported by the roof structure 4.

As described above, in the modification shown in FIG. 8, as in the embodiment shown in FIG.
The vibration damper 4 is supported on the roof structure 4 via the elastic support member 12 so that sound outside the vehicle is transmitted to the ceiling panel 14. As a result, the sound transmitted from the outside of the vehicle to the vehicle interior due to solid propagation can be reduced, and the railway vehicle 1 can be made highly soundproof. Further, costs and man-hours for attaching the ceiling panel 14 can be reduced.

The elastic support member 1 is provided on the surface of the roof structure 4 on the vehicle interior side.
By attaching and attaching the ceiling panel 14 to the surface of the elastic support member 12 on the vehicle interior side, even if no space is formed between the roof structure 4 and the ceiling panel 14, the fluorescent lamp 62, inverter 63, speaker 6
Unit unit 61 that modularizes electrical equipment such as 4 and a part of electrical wiring 65 connected to these electrical equipment.
By attaching the air conditioning duct 72, the air outlet 73 and the like to a unit unit 71 modularized to the roof structure 4, the above-described electric devices (the fluorescent lamp 62, the inverter 6
3, the speaker 64, etc.), the electrical wiring 65 connected to the electrical equipment, the air-conditioning duct 72, the air outlet 73, etc., can be easily and reliably arranged in the vehicle.

Next, a modification of the vehicle body structure of the railway vehicle according to this embodiment will be described with reference to FIG. FIG. 9 is a schematic configuration diagram illustrating a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention. The modification shown in FIG. 9 also has a configuration in which the ceiling panel 14 is mechanically supported by the roof structure 4 at the end of the ceiling panel 14. In FIG. 9, the illustration of the adhesive layer is omitted, but the roof structure 4 and the elastic support member 12 are attached by the adhesive layer, and the elastic support member 12 Panel 1
4 is attached by an adhesive layer.

On both sides of the roof structure 4 as viewed in the vehicle width direction, a pair of guide rails 41 are provided at a predetermined interval with respect to the roof structure 4. As described above, the guide rail portion 41 may be formed integrally with the roof structure 4, or may be formed separately from the roof structure 4 to form the roof structure 4.
May be fixed by welding or the like.

At a predetermined position of the pair of guide rails 41, a unit 61 is fixed by mounting bolts and nuts (neither is shown). The unit 61 is
Electrical equipment such as a fluorescent lamp 62, an inverter 63, and a speaker 64, and electrical wiring 65 connected to these electrical equipment.
Are partly modularized. On the vehicle interior side surface of the roof structure 4 to which the unit 61 is attached,
A heat insulating material 51 such as glass wool is adhered and fixed to the roof structure 4. The end of the ceiling panel 14 is fixed to the guide rail 41 together with the unit 61,
It is mechanically supported by the roof structure 4.

As described above, also in the modification shown in FIG. 9, similarly to the embodiment shown in FIG.
The vibration damper 4 is supported on the roof structure 4 via the elastic support member 12 so that sound outside the vehicle is transmitted to the ceiling panel 14. As a result, the sound transmitted from the outside of the vehicle to the vehicle interior due to solid propagation can be reduced, and the railway vehicle 1 can be made highly soundproof. Further, costs and man-hours for attaching the ceiling panel 14 can be reduced.

The elastic support 1 is provided on the surface of the roof structure 4 on the vehicle interior side.
By attaching and attaching the ceiling panel 14 to the surface of the elastic support member 12 on the vehicle interior side, even if no space is formed between the roof structure 4 and the ceiling panel 14, the fluorescent lamp 62, inverter 63, speaker 6
Unit unit 61 that modularizes electrical equipment such as 4 and a part of electrical wiring 65 connected to these electrical equipment.
Is attached to the roof structure 4 so that the above-described electric devices (the fluorescent lamp 62, the inverter 63, the speaker 64
Etc.), and the devices such as the electric wiring 65 connected to the electric devices can be easily and reliably arranged in the vehicle.

Finally, a test was conducted to confirm the soundproofing effect obtained by supporting the inner surface side member of the railway vehicle body structure of the present invention with a vibration-proof structure by means of an elastic support member. The results are shown in FIG. FIG. 10 shows the change in the sound pressure level difference inside and outside the vehicle with respect to the 1/1 octave band center frequency. As Example 1 according to the present invention, the one of the above-described embodiment was used. On the contrary,
Comparative Example 1 has a configuration in which the ceiling panel is fixed and supported on the roof structure only with screws.

As can be seen from FIG. 10, the first embodiment according to the present invention has a better soundproofing effect.

The present invention is not limited to the above-described embodiment, but includes the interior structure of the railway vehicle 1 (the structure in which the interior panel is anti-vibration supported on the side structure 3 by the elastic support material, and the interior panel is the elastic support material). The present invention can also be applied to a structure in which the wife structure 5 is supported by vibration isolation.

As a structure for mechanically supporting the end of the inner surface side member (the ceiling panel 14) to the structure (the roof structures 4, 31), in addition to the above-described modified example, bolt connection, hooking, and holding down are used. A fixing structure such as pinching can be adopted. In addition, the position and the number of mechanically supporting the end of the inner surface side member (the ceiling panel 14) on the structure (the roof structures 4, 31) are appropriately set in consideration of the adhesive strength of the adhesive layers 11, 13, and the like. Can be.

[0053]

As described above in detail, according to the present invention, the sound transmitted from the outside of the vehicle to the interior of the vehicle due to solid propagation is reduced to achieve high soundproofing, and the mounting cost and man-hour of the inner surface member are reduced. Thus, it is possible to provide a vehicle body structure of a railway vehicle capable of reducing the number of vehicles.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vehicle body structure of a railway vehicle according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part configuration showing a vehicle body structure of the railway vehicle according to the embodiment of the present invention.

FIG. 3 is a sectional view of a main part structure showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of a main part showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention.

FIG. 5 is a plan view when the roof structure in FIG. 4 is viewed from the vehicle interior side.

FIG. 6 is a sectional view of a main part structure showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention.

FIG. 7 is a sectional view of a main part structure showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention.

FIG. 8 is a schematic configuration diagram showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention.

FIG. 9 is a schematic configuration diagram showing a modification of the vehicle body structure of the railway vehicle according to the embodiment of the present invention.

FIG. 10 is a diagram showing a sound pressure level difference between the inside and outside of the vehicle between the embodiment and the comparative example based on the vehicle body structure of the railway vehicle of the present invention, and shows the difference between the inside and outside sound pressure level difference and the 1/1 octave band center frequency. Shows the relationship.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Railroad vehicle, 2 ... Underframe, 3 ... Side structure, 4, 21, 31
... Roof structure, 4a ... Car interior surface, 5 ... Wife structure, 11 ...
Adhesive layer, 12: elastic support material, 12a: interior surface of vehicle interior, 1
3 ... adhesive layer, 14 ... ceiling panel, 61, 71 ... unit part.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Koji Muto, Inventor Koji Tsutomu 2-2-2, Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company (72) Shigeki Matsuoka 3-1 Okawa, Kanazawa-ku, Yokohama-shi, Kanagawa No. Tokyu Vehicle Manufacturing Co., Ltd. (72) Inventor Koji Taniguchi 3-1, Okawa, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture F-term in Tokyu Vehicle Manufacturing Co., Ltd. 5D061 AA06 AA26 BB37 DD02 DD06 GG01 GG06

Claims (3)

[Claims] 1. A body structure of a railway vehicle comprising a structure and an inner member disposed on the vehicle interior side of the structure, wherein the surface of the structure has a heat insulating elastic support. A vehicle body structure for a railway vehicle, wherein a member is adhered and attached, and the inner surface side member is adhered and attached to a vehicle interior side surface of the elastic support member. 2. The vehicle body structure of a railway vehicle according to claim 1, wherein said inner surface member is mechanically supported by said structure at an end of said inner surface member. 3. The vehicle body structure for a railway vehicle according to claim 1, wherein a unit unit in which a plurality of devices are modularized is attached to the structure.