Load-carrying platform installation structure for truck or trailer

Abstract

To provide a load-carrying platform installation structure for a truck or a trailer, which can prevent vertical movement.SOLUTION: This load-carrying platform installation structure for a truck or a trailer comprises: a reverse U-shaped member U fixed to the backside of a load-carrying platform; a first vertical member fixed to one linear part of the reverse U-shaped member; a second vertical member fixe to the other linear part opposite to one linear part; and a hanger bracket 5 fixed at a lower side to an axle cylinder 3 and brought at an upper side into contact with a plate 4. The top surface of the reverse U-shaped member abuts against the backside of the load-carrying platform, an upper part of a chassis frame abuts against the backside of the top surface of the reverse U-shaped member, a lower part of the chassis frame 6 abuts against the plate, a lower part of the first vertical member penetrates a first opening of the plate, the lower part of the first vertical member is fastened to the plate by a first nut, a lower part of the second vertical member penetrates a second opening of the plate, and the lower part of the second vertical member is fastened to the plate by a second nut.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a bed mounting structure for a truck or trailer, and more particularly to a bed mounting structure for a truck or trailer that can prevent vertical movement. [Background technology]

[0002] Conventionally, for example, a semi-trailer truck bed mounting structure (A) in which a bed (2) is mounted on the upper surface of a pair of chassis frames (1) arranged to extend in the vehicle longitudinal direction of the truck includes a bed elastic support structure (A1) and a displacement-restricting connecting structure (A2). The bed elastic support structure (A1) is set between the bed (2) and the chassis frame (1) and elastically supports the bed (2) relative to the chassis frame (1). The displacement-restricting connecting structure (A2) is set in parallel with the bed elastic support structure (A1) and connects the bed (2) and the chassis frame (1) to each other while allowing relative displacement in the vehicle vertical direction among the relative displacements caused by the elastic support between the bed (2) and the chassis frame (1) and restricting relative displacement in directions other than the vehicle vertical direction (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-104860 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned cargo bed mounting structure (A), only one side of the cross section I of the chassis frame (1) is joined to the bottom plate (26), and both sides of the cross section I of the chassis frame (1) are not joined, resulting in a problem of insufficient prevention of vertical movement.

[0005] SUMMARY OF THE INVENTION An object of the present invention is to provide a bed mounting structure for a truck or trailer that takes into consideration the above problems. [Means for solving the problem]

[0006] The truck or trailer bed mounting structure described in claim 1 comprises an inverted U-shaped member fixed to the underside of the bed, a first vertical member fixed to one straight section of the inverted U-shaped member, and a second vertical member fixed to the other straight section opposite to the one straight section of the inverted U-shaped member, the top surface of the inverted U-shaped member abutting the underside of the bed, the upper part of a chassis frame abutting the underside of the top surface of the inverted U-shaped member, the lower part of the chassis frame abutting a plate, the lower part of the first vertical member passing through a first opening of the plate and fastened to the plate with a first nut, the lower part of the second vertical member passing through a second opening of the plate and fastened to the plate with a second nut.

[0007] The truck or trailer loading platform structure described in claim 2 is the truck or trailer loading platform structure described in claim 1, in which the inverted U-shaped member and the chassis frame are fastened together by a fastening member. [Effects of the Invention]

[0008] According to the truck or trailer loading platform mounting structure described in claim 1, the vertical dimension is kept as small as possible and the center of gravity is prevented from shifting upward, thereby preventing the truck or trailer from overturning. In addition, an inverted U-shaped member and a chassis frame are interposed between the loading platform and the plate, and the upper part of the first vertical member is fixed to one straight section, the lower part of the first vertical member is fixed to the first vertical member via a plate, the upper part of the second vertical member is fixed to the other straight section, and the lower part of the second vertical member is attached to the second vertical member via a plate, thereby further preventing vertical movement.

[0009] Furthermore, according to the truck or trailer loading platform mounting structure described in claim 2, in addition to the effects of the invention described in claim 1, by fastening the inverted U-shaped member and the chassis frame with fastening members, horizontal movement of the loading platform and the chassis frame can be prevented. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram of a main part of a truck or trailer bed mounting structure according to one embodiment of the present invention. [Figure 2] FIG. 2 is a schematic side view of FIG. [Figure 3] FIG. 3 is a schematic diagram taken along line 3-3 of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] A truck or trailer bed mounting structure according to one embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.

[0012] In Figure 1, T is a truck or trailer bed mounting structure, U is an inverted U-shaped member, 1 is a first vertical member (e.g., a bolt), 2 is a second vertical member (e.g., a bolt), 3 is an axle tube, 4 is a plate, 5 is a hanger bracket, 6 is a chassis frame, 7 is a first nut, and 8 is a second nut.

[0013] The inverted U-shaped member U is fixed (for example, welded) to the rear surface of the loading platform 10. The first vertical member 1 is fixed (e.g., welded) to one linear portion U1 of the inverted U-shaped member U, and the second vertical member 2 is fixed (e.g., welded) to the other linear portion U2 opposite to the one linear portion U1 of the inverted U-shaped member U.

[0014] The hanger bracket 5 has its lower portion fixed to the axle tube 5. In addition, the top surface U3 of the inverted U-shaped member U abuts against the underside of the cargo bed 10, the upper portion of the chassis frame 6 abuts against the underside of the top surface U3 of the inverted U-shaped member U, the lower portion of the chassis frame 6 abuts against the plate 4, the lower portion of the first vertical member 1 passes through a first opening (not shown) in the plate 4 and is fastened to the plate 4 with a first nut 7, the lower portion of the second vertical member 2 passes through a second opening (not shown) in the plate 4 and is fastened to the plate 4 with a second nut 8.

[0015] Therefore, according to the above-mentioned truck or trailer loading platform mounting structure T, the vertical dimension is kept as small as possible and the center of gravity is prevented from shifting to an upward position, thereby preventing the truck or trailer from overturning, and an inverted U-shaped member U and a chassis frame 6 are interposed between the loading platform 10 and the plate 4, with the upper part of the first vertical member 1 fixed to one of the straight parts U1, the lower part of the first vertical member 1 fixed to the first vertical member 1 via the plate 4, the upper part of the second vertical member 2 fixed to the other straight part U2, and the lower part of the second vertical member 2 attached to the second vertical member 2 via the plate 4, thereby further preventing vertical movement.

[0016] As shown in FIG. 3, the inverted U-shaped member U and the chassis frame 6 are fastened together by fastening members B to prevent the loading platform 10 and the chassis frame 6 from moving in the horizontal direction. The fastening member B is, for example, an opposing bracket, with one bracket B1 attached to the inverted U-shaped member U and the other bracket B2 attached to the chassis frame 6, and the one bracket B1 and the other bracket B2 are fastened and fixed together with a bolt B3 and a nut B4. One bracket B1 is fixed to the inverted U-shaped member U with bolts and nuts (not shown), and the other bracket B2 is fixed to the chassis frame 4 with bolts and nuts (not shown). [Explanation of symbols]

[0017] T Truck or trailer loading structure U Inverted U-shaped member U1 One straight section U2 The other straight section U3 top surface B Fastening member B1 One bracket B2 Other bracket B3 Bolt B4 Nut 1 First vertical member 2 Second vertical member 3 Axle tube 4 plates 5 Hanger Bracket 6 Chassis frame 7 First Nut 8 Second Nut 10 Cargo bed

Claims

1. An inverted U-shaped member fixed to the back of the loading platform, a first vertical member fixed to one linear portion of the inverted U-shaped member; a second vertical member fixed to one linear portion of the inverted U-shaped member opposite the other linear portion; The top surface of the inverted U-shaped member abuts against the back surface of the loading platform, an upper portion of the chassis frame abuts against the underside of the top surface of the inverted U-shaped member, and a lower portion of the chassis frame abuts against a plate; a lower portion of the first vertical member passing through a first opening in the plate, and a first nut fastening the lower portion of the first vertical member to the plate; A lower portion of the second vertical member passes through a second opening in the plate, and the lower portion of the second vertical member is fastened to the plate with a second nut. A truck or trailer loading platform structure characterized by:

2. The inverted U-shaped member and the chassis frame are fastened together with fastening members.

2. The truck or trailer loading structure according to claim 1.

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