JP5203987B2 - Vehicle panel structure - Google Patents

Description

  The present invention relates to a vehicle panel structure.

  As a technology in this type of field, for example, there is a railway vehicle structure described in Patent Document 1. In this conventional railway vehicle structure, a bone member (hat material) having a hat shape in cross section is joined to the outer plate at a constant pitch. In addition, another bone member arranged in a direction intersecting with the bone member is joined to the top portion of the hat material at the end portion of the outer plate, and the rigidity of the end portion is enhanced.

JP 2006-27366 A

  Increasing the rigidity of the end portion of the vehicle panel structure is very important from the viewpoint of securing the strength of the railway vehicle structure, and a technique capable of ensuring the rigidity is desired. However, if the number of members disposed at the end of the outer plate increases more than necessary, the weight of the railway vehicle structure increases.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a vehicle panel structure capable of improving rigidity while suppressing an increase in weight.

  In order to solve the above-mentioned problems, a vehicle panel structure according to the present invention includes a first reinforcing member that is formed in a hat shape in cross section with an outer panel serving as an outer wall of a railway vehicle, and is arranged in parallel on the inner surface side of the outer panel. And a first hollow portion by an end portion of the outer plate panel, an opposite portion of the plate-like member, and a web portion of the adjacent first reinforcing member. A plate-like member joined to the top of the first reinforcing member so that a portion is formed, and a cross-sectional hat shape, and the first hollow portion is formed in a direction intersecting the first hollow portion between the opposing portions of the plate-like member. And a second reinforcing member joined to the plate-like member so that two hollow portions are formed.

  In this vehicle panel structure, a first hollow portion, a plate-like member, and a second reinforcing member formed by the end portion of the outer panel, the facing portion, and the web portion of the adjacent first reinforcing member. And the second hollow portion formed between the two and the second hollow portion are provided at the end portion of the outer panel in a state of crossing each other. Due to such a crossing structure of the hollow portions, the vehicle panel structure can sufficiently ensure the rigidity of the end portions. In addition, this configuration can be realized simply by adding a plate-like member as compared with the conventional configuration in which bone members are arranged in the crossing direction, so that an increase in the number of parts can be avoided and an increase in weight can be suppressed.

  In addition, one flange portion of the second reinforcing member is joined to the opposing portion of the plate-like member, and the other flange portion of the second reinforcing member is joined to the end portion of the outer plate panel. It is preferable that the end part and the end part of the first reinforcing member are joined to the web part on the other flange part side of the second reinforcing member. In this case, since the second reinforcing member is joined to each of the outer plate panel, the flat plate member, and the first reinforcing member, the stress transmission efficiency between the members is improved, and the end portion has further sufficient rigidity. It is possible to have it. In addition, since the plate-like member is sandwiched between the outer plate panel and the second reinforcing member, it is possible to prevent the peeling of the plate-like member even when a bending stress acts on the outer plate panel.

  Moreover, it is preferable that the plate-like member has an overhanging portion that protrudes from the facing portion along the top portion of the first reinforcing member. In this case, the stress transmission efficiency between the members can be further improved.

  According to the vehicle panel structure according to the present invention, it is possible to improve rigidity while suppressing an increase in weight.

1 is a perspective view showing an embodiment of a railway vehicle structure to which a vehicle panel structure according to the present invention is applied. FIG. 2 is a perspective view showing the configuration of the vehicle panel structure. FIG. 3 is an exploded perspective view of FIG. 2. It is a figure which shows a 1st hollow part. It is a figure which shows a 2nd hollow part. It is a perspective view which shows the vehicle panel structure which concerns on the modification of this invention.

  Hereinafter, a preferred embodiment of a vehicle panel structure according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of a railway vehicle structure to which a vehicle panel structure according to the present invention is applied. As shown in the figure, the railway vehicle structure 1 includes a floor structure 2, a side structure 3, a roof structure 4, and a wife structure 5, and these structures are joined to each other, thereby It has a box shape with a space to accommodate it inside.

  The floor structure 2 is disposed at the bottom of the railway vehicle structure 1 as a structure constituting the floor of the vehicle. The side structure 3 and the wife structure 5 are erected so as to surround the left and right edges and the front and rear edges of the floor structure 2 as structures constituting the side part of the vehicle. The side structure 3 is provided with a plurality of door portions 6 (for example, three locations) at equal intervals for passengers / occupants to get on and off.

  In addition, window portions 7 are provided between the door portions 6 and 6 and at both ends of the side structure 3. The wife structure 5 is provided with an entrance / exit 8 for passengers / occupants to move between vehicles. The roof structure 4 is arranged so as to cover the space above the structure of the railway vehicle as a structure constituting the roof portion of the vehicle. The roof structure 4 of the vehicle is provided with an air conditioner, a pantograph (not shown), and the like for adjusting the temperature inside the vehicle.

  Next, the configuration of the vehicle panel structure applied to the side structure 3 will be described in more detail. FIG. 2 is a perspective view showing the configuration of the vehicle panel structure. FIG. 3 is an exploded perspective view thereof. Although one end portion of the vehicle panel structure K is shown in the figure, the other end portion has the same configuration.

  As shown in FIGS. 2 and 3, the vehicle panel structure 10 includes an outer panel 20, a first reinforcing member 30, a plate-like member 40, and a second reinforcing member 50. The outer panel 20 is a member that constitutes an outer wall portion of the vehicle. The outer panel 20 is made of, for example, stainless steel (SUS301L) having a thickness of about 1.2 mm, and has a rectangular shape with a length of 940 mm.

  The first reinforcing member 30 includes a rectangular top portion 31, web portions 32 and 32 erected from both sides in the width direction of the top portion 31, and flange portions 33 and 33 projecting outward from the tips of the web portions 32 and 32. A cross-sectional hat-shaped member (hat material). The first reinforcing member 30 is made of stainless steel (SUS301L) having a thickness of 0.8 mm, for example, and has a long shape corresponding to the length of the outer panel 20. Moreover, the width | variety of the top part 31 is 50 mm, for example, and the height of the web part 32 is 35 mm, for example.

  The first reinforcing member 30 is laser-welded in a spot shape along the flange portions 33 and 33, with the top portion 31 facing the inside of the vehicle, for example, arranged in parallel in the vehicle height direction at a pitch of 200 mm. It is firmly joined to the outer panel 20 by the portion W1. Accordingly, a hollow portion is formed between the first reinforcing member 30 and the outer panel 20 along the longitudinal direction of the first reinforcing member 30 (see FIG. 4).

  The plate-like member 40 is made of, for example, stainless steel (SUS301L) having a thickness of 0.8 mm. The plate-like member 40 has a substantially rectangular main body portion 41 and a plurality of overhang portions 42 that protrude from one side of the main body portion 41 at a pitch of 200 mm, for example. The plate-like member 40 has an end portion 10a of the vehicle panel structure 10 in which the main body portion 41 faces the end portion 20a of the outer plate panel 20 (hereinafter, the main body portion 41 is referred to as a facing portion 43) and extends. Each of the portions 42 is disposed so as to contact the top portion 31 of the first reinforcing member 30, and the first reinforcing member 30 is formed by the laser welding portion W <b> 2 appropriately formed in a spot shape on the facing portion 43 and the protruding portion 42. The top 31 is firmly joined. In addition, the length of the overhang | projection part 42 is about 100 mm-200 mm, for example. Moreover, the corner part which the opposing part 43 and the overhang | projection part 42 make is processed into the concave shape of (phi) 30 mm, for example.

  When the vehicle panel structure 10 is viewed from the longitudinal direction of the first reinforcing member 30 as shown in FIG. 4 by joining the plate-like member 40 and the top portion 31 of the first reinforcing member 30, the vehicle panel structure A first hollow portion having a substantially rectangular cross section is formed at the end portion of the body 10 by the end portion 20 a of the outer panel 20, the facing portion 43, and the web portions 32, 32 of the adjacent first reinforcing members 30. S1 is formed.

  Similar to the first reinforcing member 30, the second reinforcing member 50 includes a rectangular top portion 51, web portions 52 and 53 erected from both sides in the width direction of the top portion 51, and tips of the web portions 52 and 53. It is a cross-sectional hat-shaped member (hat material) which has the flange parts 54 and 54 which protrude outside from. The second reinforcing member 50 is made of stainless steel (SUS301L) having a thickness of 1.0 mm, for example, and has a long shape corresponding to the height of the outer panel 20. Moreover, the width | variety of the top part 51 is 50 mm, for example.

  On the other hand, the heights of the web portions 52 and 53 of the second reinforcing member 50 are different from each other, the height of one web portion 52 is, for example, 35 mm, and the height of the other web portion 53 is, for example, 70 mm. . The second reinforcing member 50 is disposed at the end 10a of the vehicle panel structure 10 so as to be orthogonal to the first reinforcing member 30 with the top 51 facing the inside of the vehicle, and one web portion 52 is The laser welded portion W3 formed in a spot shape along the flange portions 54 and 54 in a state in which the opposite web portion 53 is in contact with the opposing portion 43 of the plate-like member 40 and the other web portion 53 is in contact with the inner surface of the outer panel 20. Thus, the outer plate panel 20 and the plate-like member 40 are firmly joined.

  As shown in FIG. 5, the end portion 40 a of the plate-like member 40 and the end portion 30 a of the first reinforcing member 30 are in contact with the inner surface of the other web portion 53 of the second reinforcing member 50. And the web part 53, the edge part 40a of the plate-shaped member 40, and the edge part 30a of the 1st reinforcement member 30 are mutually firmly joined by the spot-shaped laser welding part W4.

  By joining the second reinforcing member 50 and the outer panel 20, the first reinforcing member 30, and the plate-like member 40, the vehicle panel structure 10 is connected to the end of the vehicle panel structure 10 by the second reinforcing member. 50, when viewed from the longitudinal direction of the second reinforcing member 50, the top portion 51 and the web portions 52, 53 of the second reinforcing member 50 and the opposing portion 43 of the plate-like member 40 are substantially cross-sectional in the direction perpendicular to the first hollow portion S1. A rectangular second hollow portion S2 is formed. The second hollow portion S2 is partitioned by the facing portion 43 so that it intersects with the first hollow portion S1 without communicating with the first hollow portion S1.

  As described above, the vehicle panel structure 10 is formed by the end portion 20a of the outer panel 20, the facing portion 43 of the plate-like member 40, and the web portions 32 and 32 of the adjacent first reinforcing members 30. The first hollow portion S1 and the second hollow portion S2 formed by the facing portion 43 of the plate-like member 40, the top portion 51 of the second reinforcing member 50, and the web portions 52 and 53 intersect each other. In this state, it is provided at the end 10a.

  Due to such a cross structure of the first hollow portion S1 and the second hollow portion S2, the vehicle panel structure 10 can sufficiently ensure the rigidity of the end portion 10a. The rigidity of the end portion 10a of the vehicle panel structure 10 is further suitably increased by the three-dimensional intersection between the first hollow portion S1 and the second hollow portion S2 so as not to communicate with each other. In addition, this configuration can be realized simply by adding the plate-like member 40 as compared with the conventional configuration in which the bone members are arranged in the crossing direction, so that an increase in the number of parts can be avoided and an increase in weight can be suppressed. .

  In the vehicle panel structure 10, one flange portion 54 of the second reinforcing member 50 is joined to the facing portion 43 of the plate-like member 40, and the other flange portion 54 of the second reinforcing member 50 is connected to the outside. The end portion 40 a of the plate-like member 40 and the end portion 30 a of the first reinforcing member 30 are joined to the end portion 20 a of the plate panel 20 and the web portion 53 on the other flange portion 54 side of the second reinforcing member 50. It is joined.

  Thereby, since the 2nd reinforcement member 50 is joined to each of the outer panel 20, the 1st reinforcement member 30, and the plate-shaped member 40, the stress transmission efficiency between each member improves, and the edge part 10a. Further sufficient rigidity can be provided. Further, since the plate-like member 40 is sandwiched between the outer plate panel 20 and the second reinforcing member 50, even when bending stress acts on the outer plate panel 20, the occurrence of peeling of the plate-like member 40 is prevented. it can.

  Further, in the vehicle panel structure 10, an overhanging portion 42 that protrudes from the facing portion 43 along the top portion 31 of the first reinforcing member 30 is provided on the plate-like member 40. Thereby, the stress transmission efficiency between each member can be improved further.

  The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the members are joined by laser welding, but the joining method may be performed by other methods such as brazing, arc welding, and electric resistance spot welding. Further, the number of the first reinforcing members 30 and the second reinforcing members 50 may be appropriately changed according to the required use of the vehicle panel structure 10.

  In the above-described embodiment, the length of the overhanging portion 42 of the plate-like member 40 is about 100 mm to 200 mm. However, as illustrated in FIG. 6, the overhanging portion 42 of the first reinforcing member 30 is used. The facing portion 43 and the facing portion (not shown) on the other end side of the vehicle panel structure 10 may be connected by the protruding portion 42 along the entire top portion 31. In this case, since the contact area between the overhanging portion 42 and the top portion 31 of the first reinforcing member 30 is increased, the stress transmission efficiency between the members can be further improved.

  DESCRIPTION OF SYMBOLS 1 ... Rail vehicle, 10 ... Vehicle panel structure, 20 ... Outer panel, 20 ... End part, 30 ... 1st reinforcement member, 30a ... End part, 31 ... Top part, 32 ... Web part, 40 ... Plate-shaped member , 40a ... an end part, 42 ... an overhang part, 43 ... an opposing part, 50 ... a second reinforcing member, 53 ... a web part, 54 ... a flange part, S1 ... a first hollow part, S2 ... a second hollow part .

Claims (3)

An outer panel serving as an outer wall of the railway vehicle;
A first reinforcing member having a hat shape in cross section and arranged in parallel on the inner surface side of the outer panel;
A first hollow portion having a facing portion facing at least an end portion of the outer panel, the end portion of the outer plate panel, the facing portion, and a web portion of the adjacent first reinforcing member. A plate-like member joined to the top of the first reinforcing member so that is formed;
A second portion joined to the plate-like member so as to form a hat shape in cross section and to form a second hollow portion in a direction intersecting the first hollow portion between the opposed portion of the plate-like member. A vehicle panel structure comprising: a reinforcing member. One flange portion of the second reinforcing member is joined to the facing portion of the plate-like member,
The other flange portion of the second reinforcing member is joined to the end portion of the outer panel,
The end portion of the plate-like member and the end portion of the first reinforcing member are joined to a web portion on the other flange portion side of the second reinforcing member. Vehicle panel structure.   3. The vehicle panel structure according to claim 1, wherein the plate-like member has an overhanging portion that projects from the facing portion along the top of the first reinforcing member.

Images