JPH1134930A - Reinforcing structure for load carrying platform of truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid the occurrence of stress concentration to the lower end of a side inner panel by restraining a side panel from being rocked in the width direction when the side panel of a load carrying platform for a truck is subjected to load in the width direction. SOLUTION: As for a reinforcing structure for the load carrying platform of a truck, an extension part 12 extended to the outer side across a side inner panel 6, is provided for the crosssill 8 of the load carrying platform 2, and a bracket 13 reinforcing the outer side surface of the side inner panel 6, is provided for the extension part 12. In the reinforcing structure as mentioned above, even when the side panel 4 of the load carrying platform 2 for the truck is subjected to load in the width direction due to vibration caused by cargoes at the time running, since the outer side surface of the side inner panel 6 has been reinforced by the bracket 13, vibration in the width direction is restricted, and the occurrence of stress concentration to the lower end of the side inner panel is thereby avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truck bed reinforcement structure.

[0002]

2. Description of the Related Art FIG. 6 is a side view of a truck composed of a relatively small vehicle. In FIG. 6, reference numeral 1 denotes a cab of the truck, 2 denotes a loading platform located behind the cab 1, and FIGS. As shown, the loading platform 2 has a floor panel 3 and side panels 4 standing upright on both sides in the width direction. The side panel 4 has a side outer panel 5 and a side inner panel 6 having upper ends fixed to each other. The lower end of the side inner panel 6 is bent inward and spot-welded to the upper surface of the side portion of the floor panel 3.

Further, a plurality of cross sills 8 extending in the width direction of the carrier 2 are arranged on the back surface of the floor panel 3 so as to reinforce the floor panel 3, and below the cross sill 8. , The front and rear direction of the light truck (Fig. 6
Side rails 7 (portions of the chassis frame extending in the vehicle longitudinal direction) are arranged, and the cross sills 8 are supported on the side rails 7 via mounting members (not shown). .

Further, as shown in FIG.
Is formed with a flat base 9, a pair of upright walls 10 erected on both sides of the base 9, and a flange 11 formed at an upper end of each upright wall 10. The part 11 is fixed by spot welding the upper surface to the rear surface of the floor panel 3.

[0005] In the figure, reference numeral 2a denotes a wheel house.

[0006]

However, in the conventional structure as described above, the floor panel 3 of the carrier 2 is reinforced by the cross sills 8 so as to withstand the load, but the side panel 4 is specially reinforced. Since the structure was not adopted, the side panel 4 was moved in the width direction of the carrier 2 (the left-right direction in FIG. 8) due to the vibration of the load during traveling.
When the side panel 4 receives a load, the side panel 4 is liable to move such that the upper end side swings in the width direction of the loading platform 2, and stress may be concentrated particularly on the bent portion at the lower end of the side inner panel 6. there were.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and when a side panel of a truck bed is loaded in the width direction, the side panel is restrained from swinging in the width direction. The purpose is to avoid stress concentration at the lower end.

[0008]

The present invention is characterized in that a cross sill of a carrier is provided with an extension extending outside the side inner panel, and a bracket for reinforcing the outer surface of the side inner panel is provided on the extension. And a truck bed reinforcing structure.

Therefore, according to the present invention, even if the side panel of the truck bed receives a load in the width direction due to the vibration of a load or the like during traveling, the outer side surface of the side inner panel is reinforced by the bracket. Is prevented from being concentrated on the lower end of the side inner panel.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an example of an embodiment of the present invention, and the portions denoted by the same reference numerals as those in FIGS. 6 to 9 represent the same components.

In this embodiment, an extension portion 12 extending outward from the side inner panel 6 is provided at a longitudinal end of the cross sill 8 of the loading platform 2, and the extension portion 12 is provided with the side inner panel 6. A bracket 13 for reinforcing the outer side surface is provided.

The bracket 13 includes a flat base 14 extending along the upper surface of the base 9 of the cross sill 8 and the base 1.
4 stands on the rear side of the vehicle body (right side in FIG. 2) and
And an abutting portion 16 formed at the inner end of the upright wall portion 15 at a substantially right angle to the rear of the vehicle body along the outer surface of the side inner panel 6.
And a receiving portion 17 formed under the corresponding contact portion 16 to receive the lower surface of the bent portion at the lower end of the side inner panel 6.
And a nut 18 welded at an appropriate position on the base 14 to a base 9 of the cross sill 8.
A bolt 20 is fastened via a shim 19 from the lower surface side of the member, and is attached by welding as appropriate.

In the example shown, the bracket 13
Is arranged so as to ride on the flange portion 11 on the rear side of the vehicle body of the cross sill 8, and the flange portion 11 is formed in the notch portion 17 a formed in the seat portion 17.
(See FIG. 3) to form a coplanar surface, and then sunk under the receiving portion 17 to support the receiving portion 17.

Therefore, according to the above embodiment, the outer side surface of the side inner panel 6 can be supported and reinforced by the abutting portion 16 of the bracket 13 from the side, so that the side panel 4 of the truck bed 2 can be moved in the width direction. When a load is applied to
By restraining the side panel 4 from swinging in the width direction, stress concentration at the lower end of the side inner panel 6 can be avoided, and the strength of the carrier 2 can be greatly improved as compared with the conventional case.

In this embodiment, in particular, since the bracket 13 is formed with the receiving portion 17 for receiving the lower surface of the bent portion at the lower end of the side inner panel 6, the receiving portion 17 bends the lower end of the side inner panel 6. It is possible to further increase the strength of the carrier 2 by increasing the area for supporting the lower surface from below.

Further, since the bracket 13 is provided on the extension 12 extending outside the side inner panel 6 of the cross sill 8, the load input to the bracket 13 can be received by the extension 12 immediately below the bracket 13. Thus, the bracket 13 can be efficiently reinforced.

To attach the bracket 13, the bolt 2
You may make it attach by welding without using 0.

The reinforcing structure described above can also be applied to the wheel house 2a of the carrier 2 as shown in FIGS. 4 and 5, and in this case, it is provided on the cross sill 8. Since the side rail 7 is disposed near the extension 12, the extension 12 can be supported from the side rail 7 via the mounting member 21.

More specifically, a mounting portion 22 along the outer side surface of the side rail 7, a pair of side plate portions 23 formed on both sides of the mounting portion 22, and a flat plate formed on the upper end of each side plate portion 23 Mounting member 21 having a simple supporting portion 24
The mounting portion 22 is attached to the outer surface of the side rail 7 by arc welding or the like, the upper surface of the support portion 24 supports the lower surface of the extension portion 12 of the cross sill 8, and is welded to an appropriate position of the base portion 14 of the bracket 13. The bolt 20 is fastened to the nut 18 via a shim 25 from the lower surface side of the support portion 24 of the mounting member 21.

As described above, the wheel house 2a of the carrier 2
In this case, the extension 12 of the cross sill 8 can be supported from the side rail 7 via the mounting member 21, so that the reinforcing effect on the outer side surface of the side inner panel 6 can be further enhanced, and This is an extremely effective reinforcing means for the wheel house 2a which is easily hit by the wheel house 2a.

Further, the load input to the bracket 13 can be received by the extension 12 of the cross sill 8 immediately below, and also can be received by the side rail 7 via the mounting member 21 of the deck provided on the extension 12. Therefore, the load can be transmitted to the member having high rigidity without being dispersed, and the reinforcement can be efficiently performed.

Further, since the extension 12 of the cross sill 8 is supported from the side rail 7 via the mounting member 21, the reinforcing effect per cross sill 8 can be greatly increased, and the number of cross sills 8 can be reduced as compared with the conventional case. Even so, substantially the same strength of the loading platform 2 can be maintained, and cost and vehicle weight can be reduced.

Incidentally, the truck bed reinforcing structure of the present invention
It is needless to say that the present invention is not limited to the above-described embodiment, and that various changes can be made without departing from the spirit of the present invention.

[0025]

According to the truck bed reinforcing structure of the present invention described above, since the outer side surface of the side inner panel can be reinforced by the bracket, when the side panel of the truck bed receives a load in the width direction. In addition, it is possible to prevent the side panel from swinging in the width direction by restraining the side panel from oscillating in the width direction, so that the strength of the cargo bed can be greatly improved as compared with the related art. Can be played.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an example of an embodiment of the present invention.

FIG. 2 is a view in the direction of arrows II-II in FIG.

FIG. 3 is a perspective view of an assembled state of the bracket of FIG. 1 as viewed obliquely from above.

FIG. 4 is a sectional view showing another embodiment of the present invention.

FIG. 5 is a perspective view of an assembled state of the bracket of FIG. 4 as viewed from obliquely above.

FIG. 6 is a side view of a truck composed of a relatively small vehicle.

FIG. 7 is a perspective view of the loading platform of FIG. 6 as viewed obliquely from below.

8 is a view in the direction of arrows VIII-VIII in FIG. 6;

FIG. 9 is a perspective view of the cross sill of FIG. 8 as viewed obliquely from above.

[Explanation of symbols]

 2 Carrier 6 Side inner panel 8 Cross sill 13 Bracket

Claims (1)

[Claims] 1. A truck bed reinforced structure, wherein a cross sill of the bed is provided with an extension extending outside the side inner panel, and a bracket is provided on the extension to reinforce an outer surface of the side inner panel.