JPH09164947A - Railcar structure - Google Patents

Abstract

(57) Abstract: [PROBLEMS] When a device is fastened, a protrusion called a locking piece is used, so that the size of the vehicle interior space is reduced by the height of the protrusion. Further, since the protrusion extends over the entire length in the longitudinal direction of the vehicle body, the weight increases. In order to reduce the weight, there has been work to remove unnecessary protrusions. As a solving means, the present invention forms a device fastening groove 9 in a face plate 7a in an extruding direction, disposes one end portion of core materials 8a and 8b on both sides in the vicinity of the groove, and the other end portion. Face plate 7
b, each of which is provided on the face plate 7a and the core material 8 provided near the groove.
a and the face plate 8b form a space, and the locking head 11a is provided in the space.
This is achieved by arranging the locking head portion 11a of the device fastening bracket 11 including the screw fastening part 11c and the structure for fastening various devices to the screw part 11c of the device fastening bracket 11 located outside the plane.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway vehicle body structure, and more particularly to a railway vehicle body structure formed of a hollow extruded shape member and suitable for fastening devices.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open No. 5-664 discloses a railway vehicle structure formed of a light alloy extruded die material. Explaining the fastening method of a stool in this conventional example, a device fastening groove constituted by a protrusion called a locking piece is installed in an extrusion mold member, and a stool is fastened to the groove through a device fastening metal fitting.

[0003]

In the prior art, various devices arranged in the vehicle are mounted on the protrusions, and the size of the vehicle interior space is reduced by the height of the protrusions. In addition, the protrusions are arranged over the entire length in the longitudinal direction of the vehicle body, which increases the weight accordingly. In the case of removing unnecessary protrusions to reduce the weight, processing work was required.

An object of the present invention is to provide a structure for a rail vehicle structure using an extruded shape member made of a light alloy, to which various devices can be fastened with a face plate smoothed.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a railway vehicle structure constructed by using a hollow extruded frame member comprising two parallel face plates and a core material connecting the face plates. In one of the face plates, a groove is formed along the extruding direction of the profile, and the groove is recessed on the other face plate side from the outer face plate, and the groove has a T-shaped cross section. It is characterized by arranging a T-shaped fastener in the groove and installing the device on the one face plate side.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment to which the present invention is applied will be described below with reference to FIGS. 1 to 3 for the case where the present invention is applied to attach a stool of a railway vehicle.

In FIG. 3, a railcar structure 1 is composed of a roof structure 2, a gable structure 3, side structures 4 and an underframe 5. In FIG. 2, the stool 13 is fixed to the underframe 5. The underframe 5 is composed of a light alloy extrusion mold member 6 whose extrusion direction is the longitudinal direction of the vehicle. The extrusion mold member 6 includes two face plates 7a and 7b and the face plates 7a and 7b.
It is composed of a plurality of core members 8 arranged in between, and has a structure in which the face plate 7 and the core member 8 are extruded as a unit. Core material 8
Are arranged in a truss shape between the two face plates 7a and 7b.

In FIG. 1, the equipment fastening groove 9 is provided in the face plate 7a in a direction parallel to the extrusion direction when the extrusion die member 6 is molded. At this time, the device fastening groove 9 is formed on the face plate 7a.
Is formed on the same smooth surface, and does not project to the outside of the extrusion mold member 6. The length of the device fastening groove 9 extends over the entire length of the extrusion mold member 6. One end of each of the core members 8a and 8b is arranged on both sides of the face plate 7a near the device fastening groove 9. The other ends of the cores 8a and 8b are arranged at the same position on the facing face plates 7b. As a result, the face plate 7a including the groove and the core members 8a and 8b form a V-shaped cross-section structure. Further, a core material 8c is arranged on the side surfaces of the core materials 8a and 8b sandwiching the device fastening groove 9 in a direction parallel to the face plate to join the core materials 8a and 8b. The arrangement position of the core material 8c between the two face plates is
A space in which a locking head portion 11a described later is arranged is secured and arranged. As a result, the T-shaped locking space 10 is formed by the face plate 7a near the device fastening groove 9 and the core members 8a, 8b, and 8c.
The other core material 8d is arranged in a truss shape with the vicinity of the connecting portion between the upper end of each V-shaped piece and the face plate 7a as a base point.

A T-shaped locking head 11 of a device fastening member 11 having a locking head 11a and a screw portion 11c in the locking space 10.
a is provided, and the screw portion 11c is arranged so as to project out of the plane. The stool 13 is joined to the screw portion 11c and is fixed to the railway vehicle body structure 1 using the nut 12.

As a result, in the railway vehicle structure using the extruded profile made of light alloy, the stool can be fastened with the face plate smoothed. Further, since the core material 8a and the core material 8b are arranged in the vicinity of the device fastening groove 9 to support the mass of the stool 13, the strength of this portion is improved. The core material 8c prevents the core material 8a and the core material 8b from being deformed by the mass support of the stool 13 and bears a load across the groove in the face plate 7a.

Since the groove 9 is made up of the V-shaped core members 8a, 8a and the core member 8c for connecting the V-shaped pieces 8a, 8a, it is possible to achieve light weight and high strength. is there.
Further, since the other core material 8d is arranged with the connecting portion between the core material 8a and the face plate 7a as a base point, the same applies to this point.

The device fastening groove 9 of the extruded die member 6 may not be provided at the time of molding the die member, and may be provided only at a portion required later in the process of manufacturing the structure. The device fastening bracket 11 is attached to the device fastening groove 9 in the same manner as the embodiment shown in FIG. 1, and the stool is fixed. In this case, in the face plate 7a in the first embodiment, the load flowing across the arrangement direction of the groove 9 is shared by the portion not provided with the groove, and the strength of this portion is further improved. . Further, in this case, the core material 8c arranged as the extruded shape member in the first embodiment may be omitted in consideration of the magnitude of the load. As described above, in this embodiment, when the face plate 7a is cut and installed, or the core material 8c is used.
Even if it does not have, the stool can be fastened with the face plate smoothed. Further, even when the device fastening groove 9 does not extend over the entire length of the extrusion die member 6, the stool can be fastened with the face plate smoothed.

Next, a second embodiment will be described with reference to FIG. The device to be attached is the stool 13 as in the first embodiment. In the present embodiment, in the production of the extrusion die member, the core member 8a and the core member 8b are sandwiched between the device fastening grooves 9 on both sides in the vicinity of the groove of the grooved face plate, and one end portion is arranged on both sides in the vicinity, and the other end is disposed. End portions are disposed at different positions on the facing face plate 7b, and a rectangular space is formed by the face plate including the groove and the core material. As a result, there are two joints between the face plate 7b and the core members 8a and 8b, and the mass of the stool 13 attached to the groove is distributed to the face plate 7b via the core members 8a and 8b.
Therefore, the strength of this portion is improved.

Next, a third embodiment will be described with reference to FIG. The device to be attached is the stool 13 as in the first embodiment. In this embodiment, in the face plate 7a, the device fastening face plate 14 which is the face plate of the face plate 7a which is in contact with the locking head 11a and can be fixed when the device is fastened is made thicker than the face plates 7 of the other parts. With this configuration, the stress applied to the device fastening face plate 14 when fastening the device is reduced, and the strength is improved.

[0015]

According to the present invention, it is possible to provide a structure in which various devices can be fastened with a face plate smoothed in a railcar structure using a light alloy extruded shape member.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the joining of a stool 13 and an extrusion die member 6 according to the first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an embodiment in which the present invention is applied to a floor plate 5 of a railcar structure 1.

FIG. 3 is a perspective view showing an embodiment in which the present invention is applied to a railway vehicle body structure 1.

FIG. 4 is a sectional view showing a second embodiment of the present invention.

FIG. 5 is a sectional view showing a third embodiment of the present invention.

[Explanation of symbols]

1 ... Rail vehicle structure, 2 ... Roof structure, 3 ... Gable structure, 4 ... Side structure, 5 ... Underframe, 6 ... Extrusion mold member, 7 ... Face plate, 8 ... Core member, 9 ... Device fastening groove, 10 ... Locking Space, 11 ... Device fastening metal fitting, 11a ... Locking head part, 11b ... Fixed part, 11c ... Screw part, 12 ... Nut, 13 ... Sit, 14 ... Device fastening face plate.

Claims (5)

[Claims] 1. A railcar structure constructed by using a hollow extruded shape member composed of two parallel face plates and a core material connecting the face plates, wherein one of the face plates is arranged in the extruding direction of the shape member. A groove is formed along the groove, the groove is provided on the other side of the face plate than the outer plate, the groove has a T-shaped cross section, and a T-shaped fastener is arranged in the groove. A railway vehicle structure characterized in that a device is installed on the one face plate side. 2. The railcar structure according to claim 1, wherein the core material near the groove is arranged in a V shape connecting both sides of the groove and the other face plate. A railroad vehicle structure to be used. 3. A railcar structure according to claim 2, wherein a third piece for connecting the two V-shaped pieces is provided in parallel with the face plate, and the groove is formed by the piece and the one face plate. A railcar structure characterized by being formed. 4. The railcar structure according to claim 2, wherein the V-shaped core member and the end portions of the other core members are located near the groove. 5. The railcar structure according to claim 1, wherein the thickness of one of the face plates of the groove portion is larger than that of the face plates of the other portions.