JP2904828B2 - Vehicle body structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vehicle body structure of a vehicle such as a railway vehicle or a bus, and more particularly to a structure in which the vehicle body has a frame structure (skeleton) so that the weight of the vehicle body is not imposed on an outer plate. The vehicle body structure of the vehicle.

[Conventional technology]

Conventionally, as a vehicle body structure of the above vehicle, for example,
As the 1399752 publication, a plurality of vertical columns (vertical bones),
In a railway vehicle structure having a structural frame formed by arranging a plurality of horizontal bones in a direction orthogonal to this, a brace (oblique material) is provided in a rectangular space formed by the vertical columns (vertical bones) and the horizontal bones. ) To form a structural skeleton, and by attaching an outer plate to this structural skeleton, distortion of the outer plate at the time of connection is eliminated and mounting of the outer plate is facilitated. 63−
As disclosed in Japanese Patent Publication No. 199878, in a skeleton of a vehicle structure formed by coupling another skeleton member intersecting with a skeleton member, a through hole for inserting the other skeleton member into one of the skeletons is provided. There have been proposed various types in which the other bone member is inserted and connected.

[Problems to be solved by the invention]

However, the above-mentioned Japanese Patent Application Laid-Open No. 62-139752 specifically describes the cross-sectional shapes of columns (vertical bones), transverse bones, and braces, and means for connecting them to each other, and also means for connecting to the outer plate. Not only is it not shown, but it is said that the side of the car body is made straight and it can be applied to the roof structure, but the roof structure is generally curved, and it is unknown how to add the braces . In other words, it is not only difficult to form a diagonal brace along the curve of the roof, but also a diagonally curved member is likely to be stretched when tension is applied, and it is likely to buckle in compression. .

Further, in the case of Japanese Utility Model Laid-Open No. 63-199878, not only is the side surface of the vehicle body straight, but also no means for attaching the outer plate is described. However, it is considered that the thin square pipe is depressed and does not work, and there is a step between the vertical bone and the horizontal bone. In addition, the means for connecting the brace to the vertical and horizontal bones is not mentioned at all and is unknown.

In other words, the above-described conventional example only discloses the basic configuration of the skeleton, and simply adopting the above configuration cannot secure the accuracy and strength of the coupling portion, and the processing is also performed on site, resulting in poor efficiency. Further, it is considered that there is a problem that the skeleton itself may be distorted.

In view of the above, the present invention ensures the accuracy and strength of the joint between the vertical bone, the horizontal bone, and the diagonal members (brace), facilitates the attachment of the outer plate, and further causes distortion of the frame itself. The purpose is to provide something that will not be lost.

[Means for solving the problem]

In order to achieve the above object, a vehicle body structure of a vehicle according to claim 1 according to the present invention includes a plurality of vertical bones extending in a vertical direction,
A vehicle in which a structural frame is composed of a horizontal bone orthogonal to the vertical bone and diagonal members arranged in a rectangular space formed by the vertical bone and the horizontal bone, and an outer plate is stretched over the structural frame. In the vehicle body structure, a vertical bone of a portion having a curved side surface is disposed obliquely so as to form a chord of the curved surface, and an outer plate supporting beam having a substantially U-shaped cross section and a curved bottom surface is provided on the vertical bone. It is characterized in that the curved surface is projected outward and is joined in the lateral direction, and the bottom of the outer plate supporting beam is brought into contact with the outer plate to stretch the outer plate while bending the outer plate.

In the vehicle body structure according to the second aspect, a plurality of vertical bones extending in a vertical direction, a horizontal bone orthogonal to the vertical bone, and a rectangular space formed by the vertical bone and the horizontal bone. In the vehicle body structure of a vehicle in which a diagonal member arranged in a frame is formed and an outer plate is stretched over the structural frame, a box provided with a through hole through which the diagonal member penetrates at a joint portion between a vertical bone and a horizontal bone. A joint having a shape is welded, and an end of the oblique member is inserted into the through hole to weld between the outer peripheral surface of the joint and the through hole of the oblique member.

(Operation)

According to the first aspect of the present invention, when the side surface has a curved surface, the outer plate and the outer plate support beam are brought into contact with each other without being joined by welding or the like, and in this state, the outer plate is attached while applying tension thereto. By fixing this periphery, it is possible to obtain a curved surface appearance of the outer plate without unevenness.

According to the second aspect of the invention, the length of the oblique member is important in terms of length tolerance. If this tolerance is low, the distortion after welding becomes extremely large. By changing the amount of insertion, the length can be adjusted without worrying about manufacturing tolerances, and this joint is welded to the longitudinal and transverse bones, and the joint between the joint and the oblique material is also welded Therefore, the strength of the joint can be increased.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 4 show a first embodiment, in which a structural skeleton shown in FIG. 3 is provided on an underframe 2 arranged below a vehicle body 1 of a railway vehicle shown in FIG. 3 are provided.

The structural frame 3 includes a plurality of vertical bones 4,5,6 extending in parallel in the vertical direction at predetermined intervals, and horizontal bones 7,8,9, parallel to the vertical bones 4,5,6. It is mainly constituted by 10 and diagonal members 11 and 12 arranged in a rectangular space formed by the vertical and horizontal bones.

That is, on the side edge of the underframe 2, a first horizontal bone 7 having a substantially U-shaped cross section sandwiching the underframe 2 is arranged.
A plurality of first vertical bones 4 are erected on the upper surface of the first vertical bone 4, and a second horizontal bone 8 is connected to the upper surface of the first vertical bone 4. On the upper surface of the second horizontal bone 8, a second vertical bone 5 as a window stud is erected, and on the upper surface of the second vertical bone 5, a third vertical bone 5 is provided.
The transverse bone 9 is connected. Further, a third vertical bone 6 is erected on the upper surface of the third horizontal bone 9, and a fourth horizontal bone 10 is connected to an upper end of the third vertical bone 6.

Then, each rectangular space formed by the first vertical bones 4,4 adjacent to each other and the first and second horizontal bones 7,8, and the third vertical bones 6,6 adjacent to each other, and 4. In each rectangular space formed by the horizontal bones 9 and 10, one diagonal member 11 and 12 is lowered to the right or downward to the left with the boundary substantially at the center in the longitudinal direction of the structural frame 3. Both ends are fixedly provided, and the structural frame 3 is configured by this.

Further, the structural frame 3 is provided with a roof frame 15 connected to the upper part of the fourth horizontal bone 10 via a pair of connection fittings 13 and 14.

The second horizontal bone 8 is formed in a substantially U-shaped cross section connecting the lower web portion 8b and the upper web portion 8c above and below the bottom side 8a. Flanges 8d bent at right angles are connected to each other.

The third horizontal bone 9 is formed in a generally U-shaped cross section connecting the lower web portion 9b and the upper web portion 9c above and below the bottom side 9a, and the upper and lower webs 9b and 9c have Flanges 9d bent at substantially right angles are connected to each other.

Further, the fourth transverse bone 10 has a lower web portion 10b above and below the base 10a.
The upper and lower webs 10b and 10c are connected to flanges 10d which are bent substantially at right angles to the upper and lower webs 10b and 10c, respectively.

Further, the lower web 8b of the second horizontal bone 8 and the lower web 9b of the third horizontal bone 8
The upper web 9c and the lower web 10b of the fourth transverse bone 10 are provided with through holes 8e, 9e, 10e, respectively. In addition, it is desirable that these transverse bones 7, 8, 9, and 10 are one bone (extracted material) over the entire length.

On the other hand, the first and third vertical bones 4,6, and the diagonal members 11,12
Are made of square pipes, and the second vertical bone 5 serving as a window stud has a thin plate-shaped cross section with a dish-shaped cross section. It is needless to say that the second vertical bone 5 may be constituted by a square pipe.

The connection between the first vertical bone 4 and the diagonal member 11 in the second horizontal bone 8 is exactly the same as the connection between the fourth horizontal bone 10 and the third vertical member 6 and the diagonal member 12. The connection between the bone 9 and the second vertical bone 5 has the same structure as when these connections are turned 180 degrees and turned upside down.

That is, the through hole 8e provided in the lower web 8b of the second horizontal bone 8
The upper end of the first vertical bone 4 is inserted into the inside, and the contact surface between the tip and the upper web 8c and the outer peripheral surface of the first vertical bone 7 and the periphery of the through hole 8e provided in the lower web 8b are formed. The first vertical bone 4 and the second horizontal bone 8 are connected by welding between them.

By welding in two layers in this manner, the strength of this joint can be increased.

In addition, the end face of the oblique member 11 is cut out in accordance with the shape of the joint between the second horizontal bone 8 and the first vertical bone 4 to be brought into contact therewith, that is, the shape of the stepped part. After that, the periphery is welded and joined.

By the way, in the case of a railway vehicle, as shown in FIG. 1, there is a case where it is necessary to make the lower part of the side face into a skirt stop due to the limitation of the vehicle limit line 20.

In this case, the side end surface of the underframe 2 is formed as an inclined surface that is gradually inclined inward downward, and the first horizontal bone 7 having a shape matching the inclined surface is attached thereto.
The first vertical bone 4 is formed between the first vertical bone 4 and the second horizontal bone 8 located slightly above the first horizontal bone 7 and the chord of the curved surface on which the first vertical bone 4 is formed is formed. It is arranged as if to do.

Further, by making the bottom 21a a curved surface having a curvature R with a substantially U-shaped cross section, which is shown in detail in FIG. 2, a contact surface with a distance L is provided, and the clearance angle γ is vertically increased and decreased in the circumferential direction. The outer panel supporting beam 21 provided with the above is laterally connected to the vicinity of the center of the first vertical bone 4 in the longitudinal direction at the flange 21b to form the structural frame 3 shown in FIG.

Then, as shown in FIG. 4, one end of the outer plate 16 is fixed to a fixing machine.
The outer plate 16 is fixed by 18 and the other end is pulled by a pulling machine 19 equipped with a cylinder to apply tension thereto, and the outer plate 16 is stretched by spot welding in this state. The point is that the outer plate 16 and the outer plate 16 are spot-welded at both upper and lower edges only by contacting the outer plate 16 with the outer plate 16.

With this configuration, the outer plate 16 can be easily and reliably attached to the structural frame 3 without distortion while bending the outer plate 16 into a desired shape while preventing local deformation.

In addition, a sealing material, packing, or the like may be inserted between the outer plate 16 and the outer plate support beam 21 in order to prevent corrosion or contact.

FIGS. 5 to 9 show the second embodiment. The difference from the first embodiment is that, as shown in FIG. 5, the first horizontal bone 7 and the second horizontal bone 8 are different from each other. And the diagonal members 12 between the third and fourth horizontal bones 9 and 10 are arranged in a "C" shape, and round pipes are used as the diagonal members 11 and 12. In addition, the connection of the ends of the oblique members 11 and 12 is performed as follows.

7 and 8 show a state in which the upper part of the oblique member 11 is connected to the joint between the second horizontal bone 8 and the upper part of the first vertical bone 4, and the side plate 22a is formed at a substantially right angle. A triangle is formed, and the oblique sides are connected by a rectangular swash plate 22b.
The swash plate 22b is provided with a box-shaped joint 22 having a through-hole 22c through which the end of the oblique member 11 can be inserted. The lower surface of the second horizontal bone 8 and the upper part of the first vertical bone 4 are provided on the end surface of the side plate 22a. Weld each side. After the end of the oblique member 11 is inserted into the through hole 22c, the outer peripheral surface of the through hole 22c and the peripheral surface of the oblique member 11 are welded.

It is needless to say that the other connecting portion of the diagonal member 11, that is, the lower portion can be connected in the same manner as described above, and at least one of the upper portion and the lower portion of the other diagonal member 12 is similar to the above. Connected.

Here, the tolerance of the diagonal members 11 and 12 is important, and if the tolerance is low, the distortion after welding becomes extremely large. However, by configuring as described above, the length of the diagonal members 11 and 12 The structural frame 3 shown in FIG.

Then, as shown in FIG. 4, one end of the outer plate 16 is fixed to a fixing machine.
The outer plate 16 is fixed by 18 and the other end is pulled by a pulling machine 19 equipped with a cylinder to apply tension thereto, and the outer plate 16 is stretched by spot welding in this state. The point is that the outer plate 16 and the outer plate 16 are spot-welded at both upper and lower edges only by contacting the outer plate 16 with the outer plate 16.

With this configuration, the outer plate 16 can be easily and reliably attached to the structural frame 3 without distortion while bending the outer plate 16 into a desired shape while preventing local deformation.

In addition, a sealing material, packing, or the like may be inserted between the outer plate 16 and the outer plate support beam 21 in order to prevent corrosion or contact.

FIGS. 5 to 9 show the second embodiment. The difference from the first embodiment is that, as shown in FIG. 5, the first horizontal bone 7 and the second horizontal bone 8 are different from each other. And the diagonal members 12 between the third and fourth horizontal bones 9 and 10 are arranged in a "C" shape, and round pipes are used as the diagonal members 11 and 12. In addition, the connection of the ends of the oblique members 11 and 12 is performed as follows.

7 and 8 show a state in which the upper part of the oblique member 11 is connected to the joint between the second horizontal bone 8 and the upper part of the first vertical bone 4, and the side plate 22a is formed at a substantially right angle. A triangle is formed, and the oblique sides are connected by a rectangular swash plate 22b.
The swash plate 22b is provided with a box-shaped joint 22 having a through-hole 22c through which the end of the oblique member 11 can be inserted. The lower surface of the second horizontal bone 8 and the upper part of the first vertical bone 4 are provided on the end surface of the side plate 22a. Weld each side. After the end of the oblique member 11 is inserted into the through hole 22c, the outer peripheral surface of the through hole 22c and the peripheral surface of the oblique member 11 are welded.

It is needless to say that the other connecting portion of the diagonal member 11, that is, the lower portion can be connected in the same manner as described above, and at least one of the upper portion and the lower portion of the other diagonal member 12 is similar to the above. Connected.

Here, the tolerance of the oblique members 11 and 12 is important, and if the tolerance is poor, the distortion after welding becomes extremely large. However, by configuring as described above, the length of the oblique members 11 and 12 can be adjusted. In this way, welding distortion can be eliminated.

FIGS. 10 to 12 show a first modified example of this embodiment. A pair of members 23a, which have a substantially trapezoidal shape opened upward when the box-shaped joint 23 is brought into contact with each other in two parts, 23a, and semicircular notches 23 are provided on both sides of each member 23a.
b, 23b are provided so that the notches 23b, 23b face each other so as to form through holes through which the oblique member 11 (or 12) is inserted, and the first vertical bone 4 is formed on the surface of each member 23b.
Welding holes 23 to enable welding with vertical bones such as
c is provided.

FIG. 13 and FIG. 14 show a second modification,
It is constituted by split members 24a, 24a which are bent and formed so as to form through holes at the corners 24b, 24b when the 24 are brought into contact with each other.

In addition, as shown in FIG. 15, the first modified example and the second modified example are provided on both sides with substantially the same configuration as the joint 24, that is, when they are brought into contact with each other, both sides thereof are provided. A pair of halves 2 each having a through hole formed at the corners 25b, 25b and having a welding hole 25c on the surface.
The joint 25 may be constituted by 5a and 25a.

〔The invention's effect〕

Since the present invention is configured as described above, the following effects can be obtained.

According to the first aspect of the present invention, when the side surface has a curved surface, the outer plate and the outer plate support beam are brought into contact with each other without being joined by welding or the like, and in this state, the outer plate is attached while applying tension thereto. By fixing this periphery, it is possible to obtain a curved surface appearance of the outer plate without unevenness.

According to the second aspect of the present invention, the length tolerance of the oblique member is important, and if the tolerance is poor, the distortion after welding becomes extremely large. By changing the amount, this length can be adjusted without worrying about manufacturing tolerances, and this joint is welded to the vertical and horizontal bones, and the joint and the diagonal member are also welded. Therefore, the strength of the joint can be increased.

[Brief description of the drawings]

1 to 4 show a first embodiment, FIG. 1 is a longitudinal sectional view of a vehicle, FIG. 2 is an enlarged transverse sectional view of an outer plate supporting beam, FIG.
The figure is a side view showing the structural frame, and FIG. 4 is a side view when the outer plate is stretched. 5 to 9 show a second embodiment, FIG. 5 is a side view showing a structural skeleton, FIG. 6 is a side view when an outer plate is stretched, and FIG. FIG. 8 is a side view of FIG. 7, and FIG. 9 is a perspective view showing a joint. 10 to 12 show a modification of the joint, FIG. 10 is a perspective view of a connecting portion between a vertical bone and a horizontal bone, FIG. 11 is a side view of FIG.
FIG. 12 is a perspective view showing a joint. FIG. 13 and FIG. 14 show another modification, FIG. 13 is a perspective view of a connecting portion between a vertical bone and a horizontal bone, and FIG. 14 is an exploded perspective view of a joint. FIG. 15 is an exploded perspective view of a joint showing still another modified example. 1 ... body, 2 ... underframe, 3 ... structural frame, 4, 5, 6 ... ... vertical bone, 7, 8, 9, 10 ... ... horizontal bone, 11, 12 ... ... diagonal material, 16, 17 …… Outer plate, 18 …… Fixing machine, 19 …… Tensioner, 21 …… Outer plate support beam,
22,23,24,25 …… Fittings.

Continuation of the front page (56) References JP-A-62-139752 (JP, A) JP-A-55-39898 (JP, A) JP-A-63-22773 (JP, A) JP-A-59-57072 (JP) JP-A-58-71270 (JP, A) JP-A-62-95979 (JP, U) JP-A-63-199878 (JP, U) JP-A-1-60779 (JP, U) (58) Field surveyed (Int.Cl. ⁶ , DB name) B61D 17/04-17/16 B62D 31/02

Claims (2)

(57) [Claims] 1. A structural frame comprising a plurality of vertical bones extending in a vertical direction, a horizontal bone orthogonal to the vertical bone, and an oblique member disposed in a rectangular space formed by the vertical bone and the horizontal bone. In a vehicle body structure of a vehicle in which an outer plate is stretched on this structural frame, a vertical bone of a portion whose side surface is a curved surface is disposed obliquely so as to form a chord of the curved surface, and a cross section is substantially formed on the vertical bone. A U-shaped outer plate supporting beam having a curved bottom surface is laterally coupled by projecting the curved surface outward, and the outer plate supporting beam is brought into contact with the outer plate so that the outer plate is curved. A vehicle body structure which is stretched. 2. A structural frame composed of a plurality of vertical bones extending in a vertical direction, a horizontal bone orthogonal to the vertical bone, and an oblique member disposed in a rectangular space formed by the vertical bone and the horizontal bone. In a vehicle body structure in which an outer plate is stretched over this structural frame, a box-shaped joint provided with a through hole through which an oblique material penetrates at a joint between a vertical bone and a horizontal bone is welded. A vehicle body structure for a vehicle, wherein an end of a diagonal member is inserted into a hole, and a gap is welded between an outer peripheral surface of a joint and a through hole of the diagonal member.