JPH0665163U - Vehicle frame structure - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to prevent the input from the cross member from being directly transmitted to the side rails and to prevent damage such as deformation to the side rails. [Structure] Inside a side rail 20, a reinforcing member 26 is arranged so that its open surface faces inward and contacts the inner surface of the side rail 20, and an end plate portion 28 of the reinforcing member 26 is fastened by a fastener 30. It is fastened to the end plate portion 22 of the side rail 20. Both flange plate portions 27 of the reinforcing member 26 are fastened to both flange plate portions 21 of the side rail 20 by the fasteners 38. The end portion of the cross member 23 is inserted and arranged in the open portion of the reinforcing member 26, and the flange plate portion 24 of the end portion of the cross member 23 is disposed.
The stepped portion 2 of both flange plate portions 27 of the reinforcing member 26.
It is fastened to 9 by a fastener 31.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ladder type frame structure for a vehicle such as a truck, and more particularly to a technique for improving the strength of a side rail having a substantially U-shaped cross section.

[0002]

[Prior art]

 Conventionally, as a ladder type frame in a vehicle such as a truck, one having a structure shown in FIG. 3 is known. That is, in the figure, the open surface of the reinforcing member 4 faces inwardly inside the side rail 3 having a substantially U-shaped cross section, which is composed of a pair of flange plates 1 and end plates 2 connecting the flanges 1 to each other. So that both the flange plate portions 5 and the inner surface of the side rail 3 are in contact with each other, the cross member 6 is inserted in the open portion of the reinforcing member 4, and the end plate portion 7 of the reinforcing member 4 is inserted. Are fastened to the side rails 3 with fasteners 8 such as rivets or bolts, and the flange plate portion 1 of the side rails 3, the flange plate portion 5 of the reinforcing member 4 and the flange plate portion 9 of the cross member 6 are riveted or bolted. There is also one in which the end of the cross member 6 is fastened to the flange plate portion 5 of the reinforcing member 4 by the fastener 11 such as a rivet or a bolt on the outer side of the side rail 3 with the fastener 10.

[0003]

[Problems to be solved by the device]

 However, such a conventional frame structure has the following problems. That is, the flange plate portion 1 of the side rail 3, the flange plate portion 5 of the reinforcing member 4, and the flange plate portion 9 of the cross member 6 are fastened together by fasteners 10 such as rivets or bolts. Since 6 and 6 are directly connected, when the frame is twisted, the input from the cross member 6 is directly transmitted to the side rails 3, and the side rails 3 are damaged by deformation and the side rails 3 are strongly damaged. Is disadvantageous to

Therefore, the present invention has been made in view of the above, and an object thereof is to prevent the input from the cross member from being directly transmitted to the side rails and prevent the side rails from being damaged by deformation or the like. And

[0005]

[Means for Solving the Problems]

 For this reason, the present invention uses a single member or two members to form a pair of flange plate portions inside a side rail having a substantially U-shaped cross-section, which includes a pair of flange plate portions and end plate portions that connect the flange portions. And an end plate portion connecting the flange portions to each other, and a stepped portion having a concave outer surface and a convex inner surface is formed in the substantially central portion of each of the flange plate portions. The formed reinforcing member is arranged so that the open surface faces inward and contacts the inner surface of the side rail, and both flange plate portions and end plate portions of the reinforcing member are fastened to the side rails by fasteners, respectively. Fasten to the flange plate and end plate respectively, insert the cross member end into the open part of the reinforcing member, and fasten the cross member end to the stepped part of both flange plate of the reinforcing member. Fastened with tools.

[0006]

[Action]

 When the frame is twisted, the input from the cross member is transmitted to the side rail through the reinforcing member, and the reinforcing member is deformed, so that the input from the cross member is not directly transmitted to the side rail but to the side rail. No damage such as deformation is given.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, the side rail 20 is formed in a substantially U-shaped cross section including a pair of flange plate portions 21 and an end plate portion 22 connecting the flange portions 21 to each other. Further, the cross member 23 is formed in a substantially U-shaped cross-section, which includes a pair of flange plate portions 24 and an end plate portion 25 connecting the flange portions 24 to each other. Further, the reinforcing member 26 is formed in a substantially U-shaped cross section, which includes a pair of substantially trapezoidal flange plate portions 27 and an end plate portion 28 connecting the flange portions 27 to each other.

A stepped portion 29 having a concave outer surface and a convex inner surface is formed at a substantially central portion of each of the flange plate portions 27 of the reinforcing member 26. A reinforcing member 26 is disposed inside the side rail 20 so that the open surface faces inward and contacts the inner surface of the side rail 20, and the end plate portion 28 of the reinforcing member 26 is riveted. Alternatively, it is fastened to the end plate portion 22 of the side rail 20 by a fastener 30 such as a bolt. Further, both flange plate portions 27 of the reinforcing member 26 are fastened to both flange plate portions 21 of the side rail 20 by fasteners 38 such as rivets or bolts.

Further, the end of the cross member 23 is inserted and arranged in the open portion of the reinforcing member 26, and the flange plate portion 24 of the end portion of the cross member 23 is the step of both flange plate portions 27 of the reinforcing member 26. It is fastened to the attachment part 29 by a fastener 31 such as a rivet or a bolt. According to the frame structure having such a configuration, since the side rail 20 and the cross member 23 are not directly coupled to each other but the side rail 20 and the cross member 23 are coupled to each other through the reinforcing member 36, when the frame is twisted, Due to the deformation of the reinforcing member 26, the input from the cross member 23 is not directly transmitted to the side rail 20 and the side rail 20 is not damaged by deformation or the like, and the side rail 20 is advantageous in strength. .

Next, another embodiment of the present invention is shown in FIG. In this embodiment, the reinforcing member 32 is a member having a substantially U-shaped cross section, and is formed by vertically dividing the end plate portion along a line extending in the longitudinal direction to form two split members having an L-shaped cross section. 32A and 32B. Therefore, each of the divided members 32A and 32B has the flange plate portion 33 and the end plate portion 34 having a small width.

A stepped portion 35 having a concave outer surface and a convex inner surface is formed at a substantially central portion of the flange plate portion 33 of each of the divided members 32A and 32B. Inside the side rail 20, the dividing members 32A and 32B are arranged so as to contact the inner surface of the side rail 20, and the end plate portion 34 of each dividing member 32A and 32B is fastened with a rivet or a bolt. It is fastened to the end plate portion 22 of the side rail 20 by the tool 36. Further, the flange plate portion 33 of each of the divided members 32A and 32B is fastened to both flange plate portions 21 of the side rail 20 by fasteners 39 such as rivets or bolts.

Further, an end portion of the cross member 23 is inserted and arranged between the split members 32A and 32B, and the flange plate portion 24 at the end portion of the cross member 23 has a flange plate portion 33 of each split member 32A and 32B. It is fastened to the stepped portion 35 by a fastener 37 such as a rivet or a bolt. Even in the frame structure having such a configuration, the input from the cross member 23 is not directly transmitted to the side rail 20 and the side rail 20 is not damaged by deformation or the like. In particular, the reinforcing member 32 is composed of the dividing members 32A and 32B. Therefore, the material of the reinforcing member 32 can be saved, and the weight of the frame can be reduced.

Although the present invention has been described with reference to the specific embodiments as described above, the present invention is not limited to this, and those skilled in the art can apply the present invention to the present invention. It should be noted that various changes and modifications can be made without departing from the scope of the attached utility model registration request.

[0014]

[Effect of device]

 According to the present invention, as described above, the reinforcing member is arranged so that the open surface faces inward and contacts the inner surface of the side rail, and both flange plate portions and end plate portions of the reinforcing member are fastened respectively. Fasten each side flange plate and end plate of the side rail with a tool, insert the cross member end into the opening of the reinforcing member, and insert the cross member end into the two flange plate parts of the reinforcing member. Since it is fastened to the stepped portion with a fastener, the input from the cross member is not directly transmitted to the side rails, the side rails are not damaged or deformed, and the side rails are advantageous in strength. The practical effect is great.

[Brief description of drawings]

1A and 1B are views showing an embodiment of a vehicle frame structure according to the present invention, wherein FIG. 1A is a perspective view, FIG. 1B is a view taken in the direction of arrow D in FIG. 1A, and FIG. Arrow view

2A and 2B are views showing another embodiment, in which FIG. 2A is a perspective view of a reinforcing member, and FIG.
(C) is a view of the side rail viewed from the inner side surface.

FIG. 3 is a view showing a conventional vehicle frame structure,
(A) is a perspective view, (B) is a view from the arrow C in (A)

[Explanation of symbols]

 20 Side Rails 21 Flange Plates 22 End Plates 23 Cross Members 24 Flange Plates 25 End Plates 26 Reinforcement Members 27 Flange Plates 28 End Plates 29 Steps 30 Fasteners 31 Fasteners 32 Reinforcement Members 32A, 32B Split Member 33 Flange plate portion 34 End plate portion 35 Stepped portion 36 Fastener 37 Fastener 38 Fastener 39 Fastener

Claims (1)

[Scope of utility model registration request] 1. A pair of flange plate parts and a pair of flange plate parts are formed by a single member or two members inside a side rail having a substantially U-shaped cross-section, which comprises a pair of flange plate parts and end plate parts connecting the flange parts. It is formed in a substantially U-shaped cross-section consisting of end plates that connect flanges to each other, and a stepped portion is formed in the center of each of the flange plates so that the outer surface is concave and the inner surface is convex. The reinforcing member is arranged so that the open surface faces inward and is in contact with the inner surface of the side rail. The plate member and the end plate portion are respectively fastened, and the cross member end portion is inserted and arranged in the open portion of the reinforcing member, and the cross member end portion is fastened to the stepped portion of both flange plate portions of the reinforcing member by a fastener. A vehicle frame structure characterized by being fastened.