JPH1120683A - Structural body for railway vehicle and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structural body for railway vehicles, which can provide a curved face with ease when connecting a composite material structural body and a metal structural body and can be manufactured at a low cost and be lightened with ease and is suitable for a head vehicle for Shinkansen. SOLUTION: This structural body comprises a composite material structural body 2 provided with a plastic molded body 2A and a metal structural body 3 provided with a metal skeleton. In this case, the vertical through material of the skeleton is extended from the connection side end face of the metal structural body 3, and a circumferential terminal frame is perpendicularly fixed to the end of a vertical through material extension section 5a to form an extended structural body 5, and one side of a metal angle material 6 is circumferentially attached to the terminal frame through a bolt 7 and a nut 7a, and the peripheral edge part 2c, which is extended from the end face of the plastic molded body 2A, is attached to another side of the angle material 6 through a blind fastener 8, and a thin external plate 9 is stuck to the plastic molded body 2A from the peripheral edge section 2c to the extended structural body 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway vehicle structure suitable for use mainly as a leading vehicle such as a Shinkansen and a method of manufacturing the same, and more particularly, to a composite material structure formed of a plastic molded body and a metal frame. The present invention relates to a structure for a railway vehicle manufactured by combining a metal structure with a metal structure.

[0002]

2. Description of the Related Art The front vehicle of the above-mentioned Shinkansen has a streamlined front (also called a curved surface) in order to reduce air resistance during high-speed driving. As shown in FIG. 8, the framework 21 of the railway vehicle structure including the leading vehicle includes a circumferential member (transverse member) 22 that continues in an arc shape or an inverted U-shape and a longitudinal member (continuous member) that continues in the longitudinal direction. A slit (not shown) is provided at a position where each of the longitudinal members 23 intersects, and the circumferential member 22 and the longitudinal member 23 are fitted with each other at the intersection and welded and joined. By doing so, the framework of the structure is made. Then, a thin metal outer plate (not shown) is attached to the outer surface of the skeleton 21, and the outer surface of the skeleton 21 is processed into a curved surface shape by hitting with a hammer or the like,
Generally, a structure is manufactured by joining and attaching by welding. Further, a metal material such as an aluminum material or an aluminum alloy material is used for the circumferential member 22, the longitudinal member 23, and the outer plate constituting the structure.

[0003] As a prior art relating to a method of manufacturing such a structure for a railway vehicle, there is a method described in, for example, JP-A-62-160954 and JP-A-62-160955. In any of the manufacturing methods, slits corresponding to the intersections between the circumferential members and the longitudinal members are provided, and the slits are fitted to each other and joined by welding.

[0004]

In the above-mentioned conventional metal structure and its manufacturing method, it is particularly difficult to form a curved surface and it takes a long time to manufacture, and the manufacturing cost is high and the vehicle weight is reduced. There is a problem that it is difficult to plan.

[0005] Therefore, for example, the front head of a leading vehicle, which mainly requires a curved surface shape, is assembled using a composite material structure formed of a plastic molded body, and the rear structure has a conventional structure provided with a metal frame. A method of assembling and combining the composite material structure of the forehead and the metal rear structure to produce a leading vehicle structure is conceivable. However, in order to implement this manufacturing method, the following problems must be solved.
In other words, the composite material structure is connected to the metal structure while being suspended by a crane etc. after the metal structure is assembled.Electrical components are assembled inside each structure before wiring work is completed. Outside the structure (outside)
The joining operation can only be performed from the beginning.

[0006] The composite material structure can be molded with high precision, but once molded and cured, its shape cannot be changed. On the other hand, a metal structure frame or the like can be forcibly bent or its shape can be changed while being heated, but the processing accuracy is extremely low. For this reason, it is inevitable that a dimensional error occurs at the joint between the composite material structure and the metal structure, and since the dimensional error of both is large, it is very difficult to absorb the error.

[0007] The framework of the metal structure has a semi-monocoque structure composed of longitudinal members and circumferential members, whereas the composite material structure is an integrally molded plastic. For this reason,
When combining the two, unless the load weight from the metal structure is dispersed and transmitted to the composite material structure, in other words, if the load from the metal structure acts intensively on a part of the composite material structure, The composite structure may be easily damaged.

[0008] Since each part of the composite material structure does not undergo plastic deformation, it may crack when the joint is forcibly tightened.

If there is a gap at the joint between the metal structure and the composite material structure, a joint fastener such as a blind fastener does not exhibit sufficient joint strength.

[0010] If a gap is formed at the joint between the metal structure and the composite material structure, sufficient airtightness in the vehicle cannot be obtained, and for example, pressure fluctuations when passing through a tunnel are transmitted to the vehicle. .

The present invention solves the above-mentioned problems associated with joining a composite material structure and a metal structure, makes it easy to manufacture a curved surface, can easily achieve low cost and light weight, and is the leading vehicle of the Shinkansen. It is an object of the present invention to provide a railway vehicle structure suitable for such applications and a method of manufacturing the same.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, a railway vehicle structure according to the present invention is obtained by combining a composite material structure having a plastic molded body with a metal structure having a metal frame. A railway vehicle structure to be manufactured, wherein a longitudinal member of the skeleton is extended from an end face on a coupling side of the metal structure, and a circumferential terminal frame is vertically fixed to an end of the longitudinal member. An extension structure is formed, and one side of the metal angle member is attached to the terminal frame with a stopper, and a peripheral portion extending from the end surface of the plastic molded body is attached to the other side of the angle member with a stopper. A thin plate is attached from the peripheral portion of the plastic molded body to the extension structure.

According to the vehicle structure of the present invention having the above-mentioned structure, the composite material structure and the metal structure are connected by attaching the angle member at the connection portion and then attaching the thin outer plate. Can be performed only from the outside of each structure. For example, it is possible to assemble the electrical components in advance and connect them in a state where the wiring work and the like are completed, thereby facilitating the production easily and efficiently. In addition, since the composite material structure composed of one plastic molded body can be molded using a mold or the like, complicated curved surfaces such as the front head of the leading vehicle of the Shinkansen can be easily and repeatedly manufactured, and mass production is possible. This makes it possible to significantly reduce the cost, and also makes it easier to reduce the weight compared to a metal structure. Furthermore, the composite material structure has high accuracy but cannot be changed in shape after molding.On the other hand, the metal structure has low processing accuracy, and it is inevitable that a dimensional error occurs at the joint with the composite material structure. Since the two are interposed and interposed, the dimensional error between the two can be easily absorbed by adjusting the mounting position of the angle material.

According to a second aspect of the present invention, the plastic molded body may be a sandwich molded body in which a hard foamed plastic material as a core material is integrally coated with a carbon fiber reinforced plastic material.

According to the second aspect of the present invention, since the outer surface and the inner surface are covered with the carbon fiber reinforced plastic material, the breaking strength is high, for example, 275 km / h.
During the above-mentioned high-speed operation, a bird or the like can withstand collisions sufficiently and has high durability. Further, since the inner surface is strong and beautiful, there is almost no need to attach an interior material as in a conventional metal structure. Further, since the inside is provided with a hard foamed plastic material, it not only exerts an action of increasing the overall strength integrally with the carbon fiber reinforced plastic material of the interior and exterior, but also acts as a heat insulating material and a sound insulating material. Therefore, it is not necessary to load a heat insulating material or a sound insulating material as in the conventional metal structure.

According to a third aspect of the present invention, the thin plate is made of a fiber-reinforced plastic plate, and the direction of the fibers in the plastic plate is approximately 45 ° with respect to the longitudinal direction (front-rear direction) of the vehicle body.
It is preferable that they cross each other at an inclination of.

According to the vehicle structure of the third aspect, when a bending moment acts on the structure, an axial load (axial force) acts on each longitudinal member of the rear structure.
At the connection point, it is transmitted mainly to the front structure via a fiber-reinforced plastic plate. At this time, 4
Almost evenly distributed along the fibers intersecting at 5 ° and transmitted to the front structure. For this reason, despite the use of a composite front structure that is partially inferior in strength to the metal rear structure, axial force does not concentrate on a part of the front structure. In addition, the front structure is prevented from being damaged due to partial concentrated load.

Preferably, the thin plate is made of a glass fiber reinforced plastic plate.

According to the vehicle structure of the fourth aspect, since the glass fiber reinforced plastic plate is more flexible than the carbon fiber reinforced plastic plate, the glass fiber reinforced plastic plate has irregularities at the connecting portions with the extension structure and the front structure. Even if there is a part, it is attached relatively flexibly, so that the construction is easy and a gap is hardly generated.

According to a fifth aspect of the present invention, the stop is preferably a blind fastener.

According to the vehicle structure of the fifth aspect, for example, when the peripheral portion extending from the end face of the plastic molded body is attached to one side of the angle member, all the fastening operations can be performed from the outside. This is convenient for work in places where it cannot be accessed, and also enables work in a state where electrical components and the like are incorporated in the structure, thereby improving workability.

According to a sixth aspect of the present invention, it is preferable that a metal mold having a T-shaped or I-shaped cross section is used as an extension of the stringer.

According to the vehicle structure of the sixth aspect, when attaching the thin outer plate to the joint, the upper end of the extension of the longitudinal member can be fixed to the upper end of the longitudinal member by using a blind fastener or the like.
The thin outer plate can be securely attached.

According to a seventh aspect of the present invention, there is provided a method for manufacturing a railway vehicle structure according to the present invention, comprising a composite material structure having a plastic molding and a metal structure having a metal frame. A method of manufacturing a railway vehicle body structure by separately manufacturing the structures and beforehand, and by combining the two, welding a metal longitudinal member extension to a connection-side end surface of the metal structure, An extension structure is formed by vertically welding a peripheral terminal frame to the end of the longitudinal member, and one side of a metal angle member is abutted on the terminal frame, and the terminal frame and one side of the metal angle member A hole that penetrates a series of holes is drilled, a bolt is inserted into the hole from the outside, a nut is screwed in, a mounting position of the metal angle material to the terminal frame is adjusted, and then the nut is tightened and fixed. At the same time, the peripheral portion extending from the end face of the plastic molded body is placed on the other piece of the angle material, and holes are formed through the other piece of the angle material and the peripheral portion of the plastic molded body in a series. After that, a fastener is fastened to the hole from the outside through a stopper, and a thin plate is placed from the outer peripheral portion of the plastic molded body to the extension structure, and the thin plate is attached from the outside to a number of fasteners. It is attached by

According to the manufacturing method of the present invention, the joining of the composite material structure and the metal structure can be easily and efficiently performed in a state where the electrical components are assembled in advance and wiring work is completed. Although the structure has high accuracy, the shape cannot be changed after molding.On the other hand, the metal structure has low processing accuracy, and dimensional errors are inevitable at the joints with the composite material structure. By adjusting the mounting position with bolts and nuts, dimensional errors between the composite material structure and the metal structure angle material can be easily absorbed.

It is still more preferable that the stopper is a blind fastener.

According to the method for manufacturing a railway vehicle structure according to the eighth aspect, according to the manufacturing method according to the eighth aspect, the thin outer plate to be attached from the peripheral portion of the plastic molded body to the extension structure can be used only from outside. It can be easily and reliably fixed with a large number of blind fasteners.

[0028]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a railcar structure and a method of manufacturing the same according to the present invention.

FIG. 1 is a side view showing a connecting portion near the frontal portion of a head vehicle structure of a Shinkansen according to an embodiment of the present invention. FIG. 2A is a sectional view taken along line BB of FIG. 2 (b) is an enlarged cross-sectional view of a part of FIG. 2 (a), FIG. 3 is a perspective view showing a left-side composite material structure of a forehead of a leading vehicle divided into two parts, and FIG.
FIG. 5 is an enlarged cross-sectional view taken along line C-C of FIG. 3, and FIG. 5 is a perspective view schematically showing a joint structure of the composite material structure and the rear metal structure with a part cut away to show a cross section. It is.

As shown in FIG. 1, a leading vehicle structure 1 of a Shinkansen is composed of a composite front structure 2 having a plastic molding 2A and an aluminum alloy rear structure 3 having an aluminum alloy framework. It has been produced. The rear structure 3 has a conventional semi-monocoque structure, and its skeleton 3A is arranged at a predetermined interval (200 to 300 m) in the circumferential direction.
m), and the longitudinal members 3a arranged at intervals
At predetermined intervals in the axial direction so as to intersect
The longitudinal members 3a and the circumferential members 3b are fitted with slits (not shown) provided at intersections, and are joined by welding. It is manufactured by. The longitudinal member 3a and the circumferential member 3b are each formed of an extruded or machined aluminum alloy material. An outer plate 3c made of an aluminum alloy is joined to the skeleton 3A by welding. FIG. 1 shows a state before the outer plate 3c is attached to the upper portion of the skeleton 3A. As shown in FIG. 2, the rear structure 3 has an interior plate 3d mounted inside the frame 3A, and a heat insulating material and a sound insulation material are arranged on the back side of the interior plate 3d, although not shown.

On the other hand, as shown in FIG. 4, the front structural body 2 is made of a hard foamed plastic (a foam of polymethacrylimide in this example) 2a, and a fiber reinforced plastic (this example) is formed so as to cover the periphery thereof. In this example, a plastic molded body 2A having a sandwich structure integrally provided with a carbon fiber reinforced plastic) coating layer 2b is provided as a main component. Further, a peripheral portion 2c in which a fiber-reinforced plastic coating layer 2b is superposed and laminated is integrally provided at a portion of the plastic molded body 2A where the rear structural body 3 is to be joined. In this example, as shown in FIG. 3, one of them is divided into right and left parts, and each part is integrally formed by a molding die (not shown) using an autoclave (not shown). The pair of left and right plastic molded bodies 2A are suspended by a crane, respectively, and mounted and mounted on a chassis 4 below the vehicle body. When the plastic molded body 2A is mounted on the chassis 4, the rear structure 3 is welded to the chassis 4 by welding, and electrical components and wiring are mounted on the chassis 4 on which the plastic molded body 2A is mounted. And almost all other equipment (not shown) are assembled. The rear structure 3 is joined to the chassis 4 by welding.

Now, a pair of left and right plastic molded bodies 2A
Is mounted on the chassis 4 so as to enclose the equipment, and the left and right divided surfaces are integrally bonded with an adhesive. Be combined.

(1) Prior to the joining operation with the front structure 2, as shown in FIGS. 4 and 5, a predetermined length of aluminum alloy is attached to the end face of the frame 3A of the rear structure 3 in the extending direction of the longitudinal member 3a. One end of the longitudinal member extending portion 5a having the dimension is welded to extend forward. An extension structure 5 is formed by vertically welding a terminal frame 5b having a predetermined height to the end of each longitudinal member extension 5a along the circumferential direction.

(2) Bolt holes 5e are drilled at intervals in the circumferential direction of the terminal frame 5b, and one side (vertical side) 6a of an angle material (angle material) 6 made of aluminum alloy is brought into contact with the terminal material 5b. At the same position as the bolt hole 5e.
e. The nut 7a is screwed into the bolt holes 5e and 6e in series and screwed together to fasten the angle member 6 to the terminal frame 5b. The bolt holes 5e
4e is formed slightly larger than the diameter of the bolt 7 as shown in FIG. 4, so that the mounting position of the angle member 6 with respect to the terminal frame 5b can be adjusted in the vertical direction and the vehicle width direction, and the rear structure 3 and the front structure Absorbs dimensional errors at the point of connection with 2. In FIG. 5, a number of short angle members 6 are attached. However, as shown in FIG. 6, long angle members 6 may be attached. In this case,
A notch 6c as shown in FIG. 6 may be formed in the vertical side 6a so that the horizontal side 6b of the angle member 6 can be attached to the peripheral portion 2c of the plastic molded body 2a without any gap. The work of passing the bolt 7 through the bolt holes 5e and 6e and screwing and tightening the nut 7a are all performed in the structure 2 ·
3 through the space from outside.

(3) With the peripheral portion 2c of the front structure 2 placed on the horizontal side 6b of the angle member 6, mounting holes 6f and 2e are formed in series from the outside, and the blind fastener 8 is formed.
Thereby, the peripheral portion 2c is joined to the angle member 6.

(4) In this embodiment, as the thin outer plate, the glass fiber reinforced plastic plate 9 is placed on the end flange 3f on the rear structure 3 side and on the peripheral portion 2c on the front structure 2 side as shown in FIG. Straddle and stick. This attachment is performed from the outside of the plastic plate 9 to the end flange 3f and the peripheral portion 2c.
A series of mounting holes 9e are formed in the angle member 6 and tightened by a blind fastener 10. Many blind fasteners 10 are attached at a fixed pitch. Although not shown, it is more preferable to use a T-shaped material or an I-shaped material for the longitudinal member extension 5a, and to secure the plastic plate 9 to the upper flange surface of the longitudinal member extension 5a with a blind fastener 10. In addition, the direction of the glass fiber contained in the plastic plate 9 is approximately 4 with respect to the axial direction (front-back direction) of the vehicle.
Those that cross alternately at an inclination angle of 5 ° are used.

(5) As shown in FIG.
When a gap (concave section) is formed between the end of the front structure 2 and the front part 2, the gap is filled with the putty 11 and filled.

As described above, the front vehicle structure 1 is manufactured by combining the composite front structure 2 and the aluminum alloy rear structure 3. The leading vehicle structure 1 has the following force transmitting action at the joint location. As shown in FIG. 7, (a) when the bogie's reaction force acts upward from the bottom at the connection point, the connection point is centered so as to be curved concavely downward.
A bending moment for rotating the left and right sides downward and shear loads in the vertical and horizontal directions act in the directions of the arrows (FIG. 7A).

(B) When the bending moment in the above-mentioned direction acts on the structure 1, an axial tension or compression load (axial force) acts on each longitudinal member 3a of the rear structure 3. These axial forces are transmitted to the front structure 2 via the plastic plate 9 and the extension structure 5 such as the stringer extension 5a at the joint, but along the glass fibers crossing the plastic plate 9 at 45 °. Is dispersed and (the peripheral portion 2c of the front structure 2)
Is transmitted substantially evenly in the circumferential direction, and is transmitted to (the peripheral portion 2c of) the front structure 2 through the longitudinal member extension 5a. That is, the tensile axial force of the rear structure 3 generated when a bending moment is applied is transmitted to the front structure 2 mainly because the force is substantially evenly distributed by the shear rigidity of the plastic plate 9 and transmitted to the front structure 2. The tensile axial force does not act intensively on a part of the peripheral portion 2c of the structure 2, and the peripheral portion 2c is prevented from being damaged due to the application of a concentrated load (FIG. 7B).

(C) Further, when a downward load acts on the rear structure 3, a vertical shear stress is generated at the end of the rear structure 3 at the joining point, and the vertical shear stress is applied to the plastic plate 9. The shear force is transmitted to the front structure 2 through the front structure 2 and a vertical shear stress is also generated in each part of the front structure 2 (FIG. 7).
(c)).

Although one embodiment of the vehicle structure according to the present invention has been described above together with the method of manufacturing the same, the embodiment can be carried out as follows.

(A) Plastic molded body 2A of front structure 2
From the viewpoint of handling such as transportation, it is desirable to form them separately and then join them together, but it is also possible to integrally form the whole without dividing them.

(B) The thin plate attached to the joint is not limited to the glass fiber reinforced plastic plate 9 but may be a carbon fiber reinforced plastic plate or an aluminum alloy thin plate.

(C) The outer skin (coating layer) 2b of the plastic molded body 2A is made of a carbon fiber reinforced plastic material,
For example, a plastic material reinforced with a highly elastic woven fabric such as Kevlar (trademark, aramid fiber) may be used.

(D) It goes without saying that the present invention can be applied not only to the structure for the first vehicle of the Shinkansen, but also to the structure for the intermediate vehicle and the structure for the last vehicle.

[0046]

As is apparent from the above description,
The railway vehicle structure and the method of manufacturing the same according to the present invention have the following effects.

(1) In the vehicle structure according to the first aspect, the work of connecting the composite material structure and the metal structure can be performed only from the outside of each structure, and the electric components are assembled in advance in a state where wiring work and the like are completed. As a result, fabrication can be easily and efficiently performed. In addition, since the composite material structure composed of a plastic molded body can be molded using a mold or the like, a complicated curved surface shape such as the front head of the leading vehicle of the Shinkansen can be easily and mass-produced, and cost reduction can be achieved. Lightening is also easy. Furthermore, since the composite material structure and the metal structure are joined with the angle material interposed, the dimensional error between the two can be easily absorbed by adjusting the mounting position of the angle material.

(2) In the vehicle structure according to the second aspect, since the outer surface and the inner surface are covered with the carbon fiber reinforced plastic material, the breaking strength is high, and the structure can sufficiently withstand a bird or the like during high-speed operation. It is rich in durability, and since the inner surface is strong and beautiful, there is almost no need to stick interior materials like a conventional metal structure, and furthermore, since a hard foam plastic material is provided inside, Since not only the overall strength is improved by being integrated with the carbon fiber reinforced plastic material of the interior and exterior, but also acts as a heat insulating material and a sound insulating material, the heat insulating material and the sound insulating material become unnecessary.

(3) In the vehicle structure according to the third aspect, when an axial load (axial force) acts on each longitudinal member of the rear structure, these axial forces intersect at 45 ° of the plastic plate. Is distributed almost evenly along the fibers to be transmitted to the front structure, so that axial force does not concentrate on a part of the front structure of the composite material, and concentrated load acts on the front structure To prevent damage.

(4) In the vehicle structure according to the fourth aspect, the glass fiber reinforced plastic plate is more flexible than the carbon fiber reinforced plastic plate. Even if there is an uneven portion, it is attached relatively flexibly, the construction is easy, and a gap is hardly generated.

(5) In the vehicle structure according to the fifth aspect, the work can be easily performed at the joint location where it is difficult to access, and the mounting work with the electric components or the like incorporated in the structure can be performed efficiently.

(6) In the vehicle structure according to the sixth aspect, when the thin plate is attached to the joint portion, it can be fixed to the upper end of the extension of the longitudinal member using a blind fastener or the like.
The thin plate can be securely attached.

(7) According to the manufacturing method of the seventh aspect, the joining of the composite material structure and the metal structure can be performed easily and efficiently after assembling the electrical components in advance and completing the wiring work and the like. By adjusting the mounting position of the angle member with respect to the angle by using bolts and nuts, the dimensional error between the composite material structure and the metal structure angle material can be easily absorbed.

(8) According to the manufacturing method of the eighth aspect, the thin outer plate to be attached from the peripheral portion of the plastic molded body to the extension structure can be easily and reliably formed by a large number of blind fasteners only by working from the outside. You can stop.

[Brief description of the drawings]

FIG. 1 is a side view showing a joint portion near a frontal portion of a structure for a leading vehicle of a Shinkansen according to an embodiment of the present invention.

2A is a sectional view taken along line BB of FIG. 1, and FIG. 2B is an enlarged sectional view of a part of FIG. 2A.

FIG. 3 is a perspective view showing a left-side composite material structure obtained by dividing a forehead of the leading vehicle of FIG. 1 into two parts;

FIG. 4 is an enlarged sectional view taken along line FF of FIG. 1 and line CC of FIG. 3;

FIG. 5 is a partially cutaway perspective view schematically showing a coupling structure between a composite material structure and a rear metal structure according to an example of the present invention.

FIG. 6 is a perspective view showing a state where a long angle material is attached to the terminal frame.

7 (a) is an explanatory view showing a bending moment and a shear load generated when a reaction force of a bogie acts upward from a bottom portion on a connecting portion of the vehicle structure of FIG. 1; FIG. 7 (b) is FIG. 7C is an explanatory diagram showing the axial forces of the rear structure generated when a bending moment acts on the structure and how these axial forces are transmitted to the front structure 2 and how the axial force is generated. It is explanatory drawing which shows the shear stress which arises in a back structure and a front structure when a downward shear load acts on a back structure.

FIG. 8 is a perspective view showing a frame structure (left half) of a conventional general metal structure of a leading vehicle of the Shinkansen.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front vehicle structure 2 Composite front structure 2A Plastic molded body 2a Hard foamed plastic 2b Fiber reinforced plastic coating layer 2c Peripheral part 3 Aluminum alloy rear structure 3A Frame 3a Longitudinal member 3b Circumferential member 3c Outer plate 4 Chassis 5 Extension structure 5a Longitudinal extension 5b Terminal frame 5e ・ 6e Bolt hole 6 Metal angle material (angled material) 7 Bolt 7a Nut 8.10 Blind fastener (stop) 9 Glass fiber reinforced plastic plate (sheet thin plate outer plate)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroyuki Onishi 2-1-1-18 Wadayama-dori, Hyogo-ku, Kobe-shi, Hyogo Kawasaki Heavy Industries Co., Ltd. Hyogo Plant (72) Inventor Makoto Furukawa Wada, Hyogo-ku, Hyogo Prefecture 2-1-1-18 Yamadori Inside the Hyogo Plant of Kawasaki Heavy Industries, Ltd.

Claims (8)

[Claims] 1. A railway vehicle structure manufactured by combining a composite material structure provided with a plastic molded body and a metal structure provided with a metal frame, wherein the metal structure is formed from a connection-side end face of the metal structure. Along with extending the longitudinal member of the skeleton, a peripheral terminal frame is fixed vertically to the end of the longitudinal member to form an extended structure, and one side of the metal angle member is fixed to the terminal frame with a stopper. At the same time, the peripheral part extending from the end face of the plastic molded body is attached to the other side of the angle member with a stopper, and a thin plate is attached from the peripheral part of the plastic molded body to the extension structure. A structure for a railway vehicle. 2. The railway vehicle structure according to claim 1, wherein the plastic molded body is a molded body having a sandwich structure in which a hard foamed plastic material as a core material is integrally coated with a carbon fiber reinforced plastic material. 3. The thin outer plate is made of a fiber reinforced plastic plate, and the directions of fibers in the plastic plate cross each other at an inclination of approximately 45 ° with respect to the longitudinal direction (front-rear direction) of the vehicle body. 3. The railway vehicle structure according to 1 or 2. 4. The railway vehicle structure according to claim 3, wherein said thin plate is made of a glass fiber reinforced plastic plate. 5. The railcar structure according to claim 1, wherein the fastener is a blind fastener. 6. The railway vehicle structure according to claim 1, wherein a metal mold having a T-shaped or I-shaped cross section is used as an extension of said longitudinal member. 7. A method for manufacturing a railway vehicle structure by separately manufacturing a composite material structure having a plastic molded body and a metal structure having a metal skeleton separately in advance, and then combining the two. Along with joining a metal longitudinal member extension to the coupling-side end surface of the metal structure, forming an extended structure by vertically welding a circumferential terminal frame to the longitudinal member extension end, Contact one side of the metal angle material to the terminal frame,
A series of holes are drilled through the terminal frame and one side of the metal angle material, bolts are inserted through the holes from outside, and nuts are screwed in to adjust the mounting position of the metal angle material to the terminal frame. After that, the nut is tightened and fixed, and the peripheral portion extending from the end face of the plastic molded body is placed on the other side of the angle material, and the other side of the angle material and the peripheral portion of the plastic molded body are placed on the other side. After drilling a series of through holes, the fasteners are fastened to the holes from the outside through fasteners, and a thin plate is placed from above the peripheral edge portion of the plastic molded body to the extension structure. A method for manufacturing a railway vehicle structure, comprising attaching a thin plate with a large number of fasteners. 8. The method according to claim 7, wherein the fastener is a blind fastener.