JPH0245258A - Structure of structuring body of rolling stock - Google Patents

Abstract

PURPOSE:To obtain a smooth surface of a structuring body, in one in which a plurality of plate members are superposed, at their plate end parts, on the outside of a frame member by applying a necking process to the plate members on the frame side in conformity with the thickness of the plate members superposed at a portion superposed. CONSTITUTION:Outer plates 1, 2 being plate members forming the outer surface of a structuring body of a vehicle suitable for a rolling stock are superposed and joined at their ends and the inner faces thereof are supported by a frame 3. In this case, a neck 5 having a depth corresponding to the thickness of the plate 1 is formed so that it protrudes in the inside of the rolling stock at the superposed portion of the outer plates 1, 2. On the part where the neck 5 is formed, the end of the outer plate 1 is superposed and joined. The frame 3 is formed by combining and joining a plurality of channel type frame members 3. A neck 7 or recess part having a depth corresponding to the thickness of the neck 5 of the outer plate 2 is formed at a position corresponding to the back cut 5. It is thus possible to prevent the superposed part of the outer plates 1, 2 from protruding to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vehicle body structure, and particularly to a vehicle body structure suitable for railway vehicles.

[Conventional technology]

Conventionally, railway vehicles are constructed by joining a plurality of plates, ie, outer panels, to the outer surface of a frame constructed by combining aggregate materials. The joining portions between the outer panels are constructed such that the outer panels located on the outside of the main body are made to protrude outward and the backs are cut, and the inner outer panels are installed and joined to overlap with the back cut portions.

Incidentally, related structures of this type include, for example, Japanese Utility Model Publication No. 63-8535.

[Problem to be solved by the invention]

In the above-mentioned prior art, the overlapped portions of the outer panels protrude to the outside of the vehicle body, and a step is created between the overlapped portions of the outer panels and the outer panels other than the mirror-type overlapped portions. Therefore, there are localized steps on the surface of the car body, which should be smooth, which impairs the aesthetic appearance and allows dust to easily adhere to the steps (which also makes it unattractive and difficult to clean). In addition, there is a problem that when a large surface of the outer panel is painted, the paint film or the adhesive tape for coloring the surface of the outer panel is likely to peel off.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle body structure that eliminates outward protrusion at the overlapping portion of plate materials corresponding to outer panels and smoothes the outer surface of the body structure.

Ij! [Countermeasures to solve JMI] The above purpose is to solve the problem of JMI in a vehicle body structure in which a plurality of plates are joined by overlapping one part of each plate on the outside of the aggregate. This is achieved by cutting the plate material located at the mirror-shaped portion in a manner that corresponds to the thickness of the overlapping plate materials, and joining the plate material that overlaps the mirror-shaped portion to the back cut portion.

[For production]

Since the plate materials mentioned above have their overlapping parts with other plate materials cut back toward the inside of the vehicle body, the outer surface of each plate material becomes smooth when they are overlapped and joined. Furthermore, by forming recessed portions in the aggregate to which the plate is attached in correspondence with the shaped portions, smoothing of the outer surface of the structure can be easily achieved.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the same figure,! and 2 are outer plates which are plate materials forming the outer surface of the structure. The outer plate 1 and the outer plate 2 are overlapped and joined at their ends. That is, the back cut 5 is formed in the overlapping portion of the outer panel 2 with the outer panel 1 so as to protrude in one direction, and the depth thereof corresponds to the thickness of the outer panel 1 to be attached. In this way, the back cut 5 is formed on the outer panel 2, and the end portions of the outer panel 1 are overlapped and joined to the second part. Next, 3 is a frame to which the outer panels 1.2 are joined and for supporting them. The frame 3 is made by combining and joining a plurality of aggregates to form the entire structure. Further, the cross-sectional shape of the frame 3 itself is a hapt-shaped cross section with flanges 6 provided on both sides. At a position corresponding to the back cut 5 of the outer panel 2, a back cut 7, that is, a recessed portion is formed with a depth corresponding to the protrusion of the back cut 5. Note that 4 is the outer panel 1. This is a coating applied to the surface of No. 2.

In such a configuration, the frame 3 is assembled by combining a plurality of aggregates as described above. On the other hand, the outer panel 1.2 has jl of the outer panel 1 on the outer side of the back cut 5 of the outer panel 2.
ls are joined by overlap spot welding. Outer board like this! , 2 have been joined together beforehand,
This is combined and joined to the framework 3. At this time, the back cut 5 of the outer panel 2 is matched with the back cut 7 of the frame 3 and combined. Note that there is no problem in terms of strength even if the opposed portions of the back cut 5 of the outer plate 2 and the back cut 7 of the frame 3 are not particularly joined.

Next, after joining the outer panel 1.2 to the frame 3 as described above,
The outer panel! , kI on the surface of 2! coating to form a coating film 4. At this time, the slight depression formed on the end face of the outer panel 1 is filled with putty or the like to smooth it out, and then painted.

According to such a configuration, there is no outwardly protruding portion in the overlapping portion of the outer panel 1 and the outer panel 2, and the surface can be smoothed. Therefore, the appearance of the structure can be improved. Also,
Even during painting, since no protrusions are formed on the outer panel at 1°20°, the work is easy and problems such as peeling of the paint film are less likely to occur. Furthermore, since a back cut 7 is provided on the frame 3 in correspondence with the back cut 5 of the outer panel 2, the work of joining the outer panels 1, 2 and the frame 3 can be easily and easily performed. .

In the above embodiment, the frame is provided with a back cut corresponding to the back cut of the outer panel, but the present invention is not limited to this, and the frame is provided with a back cut corresponding to the back cut of the outer panel. The recessed portion may be formed by cutting it out. However, the aggregate may be reinforced if necessary.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to eliminate the outward protrusion at the overlapping portion of the plate materials and smooth the surface of the structure.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the joint between the outer skin and the frame, showing an embodiment of the body structure according to the present invention, and FIG. 2I is a cross-sectional view of the joint between the outer skin and the frame in FIG. 1.

Claims (1)

[Claims] 1. In a vehicle body structure constructed by joining a plurality of plate materials to the outside of the aggregate by overlapping and joining the ends of each plate, the plate material located on the aggregate side of the plate overlap portion is A body structure for a vehicle, characterized in that the overlapping portion is cut in the back corresponding to the thickness of the overlapping plate materials, and the overlapping plate materials are joined to the back cut portion. 2. In a vehicle body structure constructed by joining a plurality of plate materials to the outside of the aggregate by overlapping and joining the ends of each plate, the plate materials located on the aggregate side of the plate overlap part are overlapped about the overlap part. Cut the back according to the thickness of the plate material, join the members that overlap with the back cut part, and move the corresponding position of the aggregate to which the plate material is attached to the inside of the car according to the back cut part of the board material. A vehicle body structure characterized by indentations. 3. The vehicle body structure according to claim 2, wherein the recessed portion of the aggregate is formed by cutting the aggregate back. 4. The vehicle body structure according to claim 2, wherein the recessed portion of the aggregate is formed by cutting out the aggregate.