JP3678013B2 - Vehicle interior material mounting method and interior structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an interior structure of a railway vehicle.
[0002]
[Prior art]
In recent years, there has been a strong demand for lowering costs in addition to higher performance and comfort in railway vehicles. In order to realize a low-cost vehicle body, a drastic improvement in structure and manufacturing method is required. For the structures and fittings that make up the car body, from the viewpoint of cost reduction, parts are contracted, enlarged, and outworked to streamline production as a whole.
[0003]
For the structure, for example, aluminum alloy and vehicle weight reduction (1990, issued by the Japan Aluminum Federation), the entire structure as described on pages 308, 320 to 368, all in a large hollow extruded shape. One example is a vehicle body structure that is constructed and streamlined production.
[0004]
On the other hand, there is an example of the structure of the outfitting as a unit such as a ceiling duct or a ceiling lamp for a ceiling part of a railway vehicle as described in Japanese Utility Model Publication No. 60-9096. In this example, the ceiling surfaces are formed by smoothing the lower surfaces of both the ceiling duct and the ceiling unit, and the effect of improving work efficiency is achieved. In addition, in the structure described in Japanese Patent Laid-Open No. 04-334654, air conditioning ducts and lighting fixtures are unitized, thereby reducing the number of fittings installed on the vehicle body inside the vehicle and improving workability. Has an effect.
[0005]
[Problems to be solved by the invention]
Conserving body parts and increasing the size will increase the weight of the parts, and the handling and assembly during installation will be poor. In particular, in the case of an interior material, it is necessary to perform an assembly operation in a limited space inside the vehicle structure, and a coupling structure that facilitates assembly of large parts is desired. Further, as the size of the parts increases, the load acting on the coupling portion increases, and a structure having high strength reliability of the portion is required. Furthermore, in order to give the interior material that is the subject of the present invention excellent performance in heat insulation and sound insulation, it is generally composed of a non-strength member, and the structure portion is devised not to share the load as much as possible. Necessary.
[0006]
On the other hand, the interior material is often composed of a polymer material such as foamed resin or FRP and a metal material, and when these materials are discarded, a structure that facilitates separation of the constituent materials is required.
[0007]
An object of the present invention is to facilitate assembly when a large-sized interior material is attached to a vehicle body.
[0008]
[Means for Solving the Problems]
The above purpose is
When mounting the interior material from the vehicle body side structure is disposed over the roof structure to the vehicle body, said first mounting seat interior material (24, 24 b, 24d) provided on the projecting piece projecting toward the side structure (27, 27b) is placed on the second mounting seat (35, 37) of the side structure,
Next, (24, 24b, 24d) of the first mounting seat is fixed to the second mounting seat (35, 37) with a fastener (32) , and the roof structure side of the interior material is Fixing to the roof structure with fasteners (31) ,
Is achieved.
The above “1 mounting seat”, “second mounting seat”, “projection piece”, and “fastener” are “24, 24b, 24d”, “35, 37”, “27, 27b” in the embodiments, respectively. "," 32, (31) ".
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. Reference numeral 15 denotes a central ceiling member that covers the ceiling at the center in the width direction of the vehicle body 10, and incorporates an air conditioning duct or the like. Reference numeral 20 denotes an interior material between the ceiling member 10 and the upper portion of the window 16.
[0010]
The interior material 20 includes an interior member 21 provided from the upper part of the window 16 to the vicinity of the center of the ceiling, and a load shelf 25. One end of the interior member 21 is fixed to the roof structure 11 of the vehicle body 10 with bolts and nuts 31 of fasteners. The lower end of the other end of the interior member 21 is fixed to the side structure 12 of the vehicle body 10 with bolts and nuts 32 of fasteners.
[0011]
The interior member 21 includes a sandwich panel 22 and mounting seats 23 and 24 installed at both ends thereof. The sandwich panel 22 is composed of two face plates made of aluminum, a honeycomb core disposed between and bonded to each other, a heat insulating material filled in the space of the honeycomb core, and a decorative sheet attached to the face plate on the indoor side. , And. The honeycomb core may be made of non-metal. The mounting seats 23 and 24 are aluminum extruded profiles, and the end portions of the sandwich panel 22 are inserted and fixed in the recesses. The insertion portion is fixed to the mounting seats 23 and 24 with an adhesive and a rivet 28. The rivet 28 passes through the mounting seats 23 and 24 and the sandwich panel 22.
[0012]
A protrusion 29 is provided on the mounting seat 24 so that the load placed on the load shelf 25 does not hit the sandwich panel 22.
[0013]
[Means for Solving the Problems]
The above purpose is
When mounting the interior material from the vehicle body side structure is disposed over the roof structure to the vehicle body overhangs, the first mounting seat interior material (24,24,24d) to provided al which was projecting toward the side poised body Place the piece (27, 27b) on the second mounting seat (35, 37) of the side structure,
Next, (24, 24b, 24d) of the first mounting seat is fixed to the second mounting seat (35, 37) with a fastener, and the roof structure side of the interior material is used as the roof structure. Fixing with fasteners,
Is achieved.
[0014]
A projecting piece 27 that can be placed on the mounting seat 35 of the vehicle body 10 is provided on the back surface of the mounting seat 24 (on the side structure 12 side). The load shelf 25 is provided as an extruded shape integrally with the mounting seat 24. The sandwich panel 22, the mounting seats 23 and 24, and the load shelf 25 are integrated before being attached to the vehicle body 10.
[0015]
An operation of attaching the interior material 20 to the vehicle body 10 will be described. This attachment work is performed after the vehicle body 10 is configured. As shown in FIGS. 1 and 2, the interior material 20 is attached with the vehicle body 10 in a use state. In attaching the interior material 20 to the vehicle body 10, first, the protruding piece 27 of the attachment material 24 is placed on the attachment seat 35 and temporarily assembled. After that, the bolts and nuts 31 and 32 are fixed. According to this, since one end of the interior material 20 can be supported by the projecting piece 27, the attachment work of the large-sized interior material 20 becomes easy and can be assembled with high accuracy.
[0016]
For this reason, the protruding piece 27 is located above the mounting seat 35. When assembling the interior material 20 with the roof structure 11 of the vehicle body 10 down and the floor up (that is, the vehicle body 10 is inverted), the projecting piece 27 is above the mounting seat 35 in this inverted state. According to this, the protruding piece 27 is below the mounting seat 35 in the state of use of the vehicle body.
[0017]
Since the sandwich panel 22, the mounting seats 23 and 24, the load shelf 25, and the convex portion 29 are integrated, it is possible to consolidate parts. Since the sandwich panel 22 uses aluminum for the face plate, it can be made light and have a required strength. And since the sandwich panel 22 and the attachment seat 24 are being fixed with the rivet 28, the intensity | strength of this part can be improved.
[0018]
Since a honeycomb core is used as the core of the sandwich panel 22 and a foamed heat insulating material is filled in the honeycomb space, heat insulation and sound insulation can be achieved. The honeycomb core is non-metallic to be lightweight.
[0019]
3 and 4, the protruding piece 27 and the mounting seat 24 to the vehicle body 10 are integrated. FIG. 3 shows the use state of the vehicle with the interior material 20 attached to the vehicle body 10. FIG. 4 shows a state when the interior material 20 is attached, in which the roof structure 11 of the vehicle body 10 is positioned downward and the floor is positioned upward (the vehicle body is inverted).
[0020]
In FIG. 4, a rail 37 that can accommodate the head of the bolt 32 is provided on the upper surface of the tip of the mounting seat 35. A protruding piece 27 b is provided on the mounting seat 24 so as to face the upper surface of the rail 37. The protruding piece 27b is provided with a hole through which the shaft of the bolt 32 passes. The rail 37 and the protruding piece 27b are box-shaped structures. Due to the box structure, sufficient strength can be secured.
[0021]
According to this, both the temporary assembly of the interior material 20 to the vehicle body 10 and the fastening of the bolts and nuts 31 and 32 are all directed downward, and the attachment work can be easily performed.
[0022]
In the embodiment of FIG. 5, the mounting seat 35 is a separate member from the side structure 11. The mounting seat 35 is constituted by an intermediate metal fitting 40. The side structure 12 is provided with rails 12b, 12b having a box structure. The intermediate bracket 40 also has box-shaped mounting seats 41 and 42, which are fixed to the rails 12b and 12b with bolts and nuts 45 and 45, respectively. The intermediate bracket 40 is attached to the side structure 12 before the interior material 20 is attached.
[0023]
According to such a configuration, the vehicle body 10 including the rail structure portion becomes relatively small and easy to manufacture, and it is only necessary to provide the intermediate metal fitting 40 as much as necessary, not over the entire vehicle body, thereby reducing the weight of the vehicle body. It is effective in terms of ease of manufacturing structure parts.
[0024]
In the embodiment shown in FIG. 6, the interior member 21, the load shelf 24, and the mounting seat 24 are separate members. The sandwich panel 22 and the extruded shape member 24b holding the lower end thereof are fixed by an adhesive and rivets. A convex portion 24c having a spherical section is formed on the lower surface of the holding seat 24b, and a groove 24e having a spherical section is formed on the upper surface of the mounting seat 24d. The convex portion 24c has a slit 24f.
[0025]
According to this configuration, the interior material 21 and the mounting seat 24d can be slightly rotated, and can be easily assembled.
[0026]
Since the convex part 24c inserted into the groove 24e has a slit 24f, it has a spring property and both cannot be easily detached.
[0027]
In this embodiment, when a load is generated on the load shelf 35, a moment load acts on the mounting seat 24d. However, since this load can be relaxed and transmitted to the interior material portion 21 side, the interior material portion 21 ( A structure having a relatively low strength at the end of the sandwich panel 22 as a main component may be used. In other words, the main purpose of the interior material portion 21 is for makeup, and since heat insulation and sound insulation are added if necessary, the strength does not need to be increased so much. For this reason, the configuration of the end portion of the interior member 21 can be made relatively easy, and the cost can be reduced.
[0028]
In the above description, the mounting seat 24d and the load shelf 25 are integrally formed of extruded shapes, but a structure in which a sheet metal is assembled by welding is also realized.
[0029]
【The invention's effect】
According to the present invention, it is possible to facilitate the assembly of a large-sized interior material.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an essential part of a vehicle interior structure according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of the vehicle including FIG.
FIG. 3 is a longitudinal sectional view of a main part of an interior structure in another embodiment of the present invention.
4 is a longitudinal sectional view showing an assembly state in the vehicle body inversion state for FIG . 3 ; FIG.
FIG. 5 is a longitudinal sectional view showing an assembly state of the interior structure in the vehicle body inverted state according to another embodiment of the present invention.
FIG. 6 is a longitudinal sectional view of a main part of an interior structure in another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Car body, 11 ... Roof structure, 12 ... Side structure, 20 ... Interior material, 21 ... Interior member, 22 ... Sandwich panel, 24, 24b, 24d ... Mounting seat, 24c ... Spherical convex part, 24e ... Spherical groove, 25 ... Loading rack, 27, 27b ... Projection piece, 28 ... Rivet, 29 ... Convex part, 35 ... Mounting seat.

Claims (5)

When the interior material arranged from the side structure of the vehicle body to the roof structure is attached to the vehicle body, a projecting piece provided on the first attachment seat (24, 24b, 24d) of the interior material and projecting toward the side structure ( 27, 27b) on the second mounting seat (35, 37) of the side structure,
Next, (24, 24b, 24d) of the first mounting seat is fixed to the second mounting seat (35, 37) with a fastener (32), and the roof structure side of the interior material is Fixing to the roof structure with fasteners (31),
A vehicle interior material mounting method characterized by the above. When attaching the interior material arranged from the side structure of the vehicle body to the roof structure to the vehicle body, the first attachment seat (24, 24b, 24d), and projecting pieces (27b, 27) projecting toward the side structure are placed on the second mounting seats (35, 37) of the side structure,
Next, the first mounting seat (24, 24b, 24d) is fixed to the second mounting seat (35, 37) with a fastener (32), and the roof structure side of the interior material is fixed to the roof. Fixing to the structure with fasteners (31),
A vehicle interior material mounting method characterized by the above. The protrusion (27b, 27) is fixed to the second mounting seat (35, 37) with the fastener (32) according to claim 2,
A vehicle interior material mounting method characterized by the above. In the interior structure where interior materials are installed from the side structure of the car body to the roof structure,
In the interior material, a first mounting seat (24, 24b, 24d) on the side structure side and a second mounting seat (35, 37) on the roof structure side are fixed by fasteners (32), respectively. ,
The first mounting seat (24, 24b, 24d) protrudes toward the second mounting seat (35, 37) and is in contact with the second mounting seat (35, 37). (27b, 27) there is, projecting pieces (27b, 27), when attaching the interior material to the vehicle body that is intended to place the mounting of the second member,
A vehicle interior structure characterized by   The vehicle interior structure according to claim 4, wherein the protruding pieces (27b, 27) are fixed to the second mounting seats (35, 37) by the fasteners (32).

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