JPS6139657Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a reinforcing device for side frames arranged on both left and right sides of a truck bed.

Problems with Conventional Technology Recently, there has been a growing interest in forming truck beds from various types of extruded aluminum materials in order to reduce their weight and simplify assembly. Such a loading platform consists of a flooring material made of extruded aluminum material that also serves as a horizontal joist, that is, a flooring material with legs corresponding to one or more horizontal joists integrally formed on the lower surface of the floor plate section, and placed on the vertical joists at right angles thereto. A large number of them are lined up in the same direction to form the loading platform floor, and side frames and rear frames are attached to the left and right sides and the rear of the platform.In particular, the side frames have a large number of ropes attached to their undersides. Since the hook is attached, it must have sufficient strength to withstand the rope tightening force applied to it. However, it is difficult to form the side frame into a hollow shape with great strength so that the hooks and the like can be attached to the side frame, and in the end, the strength becomes a problem.

Purpose of the invention In view of the above-mentioned problems, this invention is the simplest structure and easy to fabricate for reinforcing a side frame made of extruded aluminum material that is formed into a substantially U-shaped cross section. The purpose of this invention is to provide a reinforcing structure that is low in cost and has excellent strength.

Means for Solving the Problems In the reinforcing device according to this invention, a loading bed floor 1 is formed by arranging a plurality of flooring materials 3 that also serve as horizontal joists in a row orthogonal to the vertical joists 2, and A main body portion 1 having a substantially U-shaped cross section is provided on both left and right sides of the loading platform floor 1.
2 and a flooring attachment part 13 integrally extended from the upper wall 12a thereof, the side frame 4 is attached by fixing the end of the flooring 3 to the flooring attachment part 13. A plate-shaped reinforcing piece 22 is attached between the lower wall 12b of the main body part 12 and the flooring attachment part 13 at least at the attachment part of the rope hook 20 in the side frame 4, Moreover, the reinforcing piece 22
The side frame 4 has male or female fitting locking portions 26, 26 integrally formed at both ends.
The fitting locking portion 2 is integrally formed to face the tip of the lower wall 12b and the lower end of the flooring attachment portion 13 in
Female or male fitting locking part 2 corresponding to 6, 26
It is characterized in that it is integrally attached to the side frame 4 side by tightly fitting and locking it to the side frames 3 and 24.

Embodiments Hereinafter, this invention will be further explained with reference to illustrated embodiments.

In Figures 1 to 3, reference numeral 1 denotes the bed floor of a truck.
It is formed by arranging a large number of flooring materials 3, which also serve as horizontal joists, made of extruded aluminum material on top of the flooring material 2. On the left and right sides of this loading platform floor 1, side frames 4 made of extruded aluminum are arranged and fixed to the floor material 3, and a side tilt 5 is attached to the upper part of the outer surface of the frame so that it can be raised and lowered. There is.

The flooring material 3 has a floor plate portion 7 on the upper surface as shown in the figure.
One or more supporting legs 8 having an inverted T-shaped cross section are provided on the lower surface of the floor plate portion 7, and a mounting leg 9 having an inverted L-shaped cross section is provided on the lower surface of one side edge. Fitting convex portions 10 for joining formed on both side edges of
By sequentially fitting the fitting recesses 11 of corresponding shapes, the adjacent flooring materials 3, 3 are joined together. A horizontal mounting plate portion 9a projecting outward from the lower end of the mounting leg portion 9 is fixed to the upper wall of the vertical joist 2 by bolts and nuts 6.

As shown in FIG. 2, the side frame 4 includes a main body portion 12 having a substantially U-shaped cross section, and a flooring attachment portion 13 integrally formed at the tip of an upper wall 12a. This flooring attachment part 13 is constructed of a vertical wall 1 having an inwardly opened slide groove 4 in the shape of a cross section on its upper part.
5 and a horizontal mounting plate 16 extending inward from its lower end.
The T-shaped bases 17a of a plurality of separately formed flooring connecting pieces 17 are slidably fitted into the slide groove 14, and the flooring 3 is fitted onto the horizontal mounting plate 16. A mounting plate portion 9a is fixed to the lower end of the mounting leg 9 with bolts and nuts 18. The floor material connection piece 17 is arranged corresponding to each floor material, and the T-shaped base 17
An inwardly protruding portion 17b having a generally inverted L-shaped cross section and protruding inward from a is brought into contact with the lower surface of the flooring portion 7 of the flooring 3, and is fixed thereto from above with screws 19.

Incidentally, on the lower surface of the side frame 4, that is, on the lower surface of the lower wall 12b of the main body 12, a large number of rope hooks 20 are attached at predetermined intervals using appropriate fixing means such as bolts and nuts 21. At this hook attachment site, the lower wall 12
The tip of b and the lower end of the flooring attachment portion 13 are integrally connected via a plate-shaped reinforcing piece 22 placed between them.

Furthermore, the following structure is particularly adopted as a specific means for attaching the reinforcing piece 22. That is, the first
As shown in the figures or FIG. 3, a female fitting with a circular cross section continuous in the length direction is provided at the tip of the lower wall 12b of the main body part 12 in the side frame 4 and the lower end corner of the flooring attachment part 13. The fitting and locking parts 23 and 24 are provided facing each other, and the reinforcing piece 22 has male fittings with a substantially circular cross section corresponding to the fitting and locking parts 23 and 24 at both ends of the plate-like connecting part 25. The stop portions 26, 26 are integrally formed in a bulging shape, and the male fitting locking portions 26, 26 are connected to the female fitting locking portions 23, 26.
24 from one end, so that it can be attached only to a predetermined portion where the rope hook 20 is present. The fitting and locking parts 23, 24 and 26, 26 may have a shape that allows them to fit together without separating them,
Therefore, for example, a dovetail or dovetail cross section or a T
It may be formed into a letter shape, etc., or the side frame 4
A male fitting locking portion may be provided on either the side or the reinforcing piece 22 side.

Note that the rope hook 20 may be extended from the reinforcing piece 22 and formed integrally therewith.

Effects of the invention Since this invention has the above-mentioned configuration, the side frame 4 has a hand portion 12 having a substantially U-shaped cross section, and a rope hook 20 is attached to the lower wall 12b of the side frame 4. This can be easily done using bolts, nuts, etc., and the strength of the main body 12 can be made extremely strong, especially at the attachment site of the rope hook 20, by the specific arrangement of the reinforcing pieces 22. In particular, since the lower wall 12b of the main body part 12 is connected to the flooring 3 side via the reinforcing piece 22 and the flooring attachment part 13, the side frame 4 can be attached to the side frame 4 by the rope hung on the rope hook 20. Even if a large upward or outward force is applied to the lower part of the side frame, it will not easily deform, and the side frame will have a simple structure and excellent strength, significantly improving the durability of the side frame. sell.

Moreover, the reinforcing piece 22 has male or female fitting locking portions 26, 26 having a circular or T-shaped cross section integrally formed at both ends to connect the end of the lower wall 12b of the side frame 4 to the floor. Material mounting part 1
By closely fitting and locking the female or male fitting locking portions 23, 24 corresponding to the fitting locking portions 26, 26 integrally formed opposite to the lower ends of the side Since it is integrally attached to the frame 4 side, there is no need for numerous fixing members such as bolts and nuts to attach the reinforcing piece 22, and there is no need for troublesome fixing work such as welding. After sliding the reinforcing piece to the specified position, if necessary, the fitting locking part can be caulked from the outside to complete the complete installation work. The labor burden required for the installation work of the reinforcing piece can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of a truck bed showing an embodiment of this invention, Fig. 2 is a partial cross-sectional view taken along the line of Fig. 1, and Fig. 3 is a partial cross-sectional view of the
FIG. 1... Loading platform floor, 2... Vertical joists, 3... Flooring material, 4
...Side frame, 12...Main part, 12a
...Top wall, 12b...Bottom wall, 13...Flooring attachment part, 20...Rope hanging hook, 22...Reinforcement piece, 23, 24...Female fitting locking part, 25...Plate shaped connecting portion, 26...male fitting locking portion.

Claims (1)

[Scope of utility model registration request] By arranging a plurality of flooring materials 3 that also serve as horizontal joists in a row orthogonally on the vertical joists 2, the loading platform floor 1 is created.
A side frame 4 has a main body part 12 having a substantially U-shaped cross section and a flooring attachment part 13 integrally extending from an upper wall 12a thereof on both left and right sides of the loading platform floor 1. The flooring material 3 is attached to the flooring material attachment portion 13.
In the truck loading platform which is attached by fixing the end of the side frame 4, at least at the attachment portion of the rope hook 20,
A plate-shaped reinforcing piece 22 is attached between the lower wall 12b of the main body part 12 and the flooring attachment part 13, and the reinforcing piece 22 has male or female bulges integrally formed on both ends. The fitting locking parts 26, 26,
A female or male fitting locking portion 23 corresponding to the fitting locking portions 26, 26 integrally formed opposite to the tip of the lower wall 12b of the side frame 4 and the lower end of the flooring attachment portion 13 , 24, thereby being integrally attached to the side frame 4 side.