JPH0858630A - Aluminum load-carrying platform for dump car - Google Patents

Abstract

PURPOSE: To provide a load-carrying platform excellent in wear resistance and less in man-hour for welding. CONSTITUTION: A floor 2 comprises the required number of hollow floor panels 7, 8, and 9 of aluminum extrusion molding, a close-fit recessed part 13 is provided at the side edge of one floor panel 7 among adjacent two floor panels 7 and 8 and a close-fit projected part 14 is provided at the side edge of the other floor panel 8, and the close-fit projected part 14 is fitted closely to the close-fit recessed part 13. Also an iron plate 21 is stuck with an adhesive so that one third of the rear part on the upper surface of the floor 2 can be covered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aluminum carrier for a dump truck.

[0002]

2. Description of the Related Art Although Japanese Utility Model Publication No. 61-7974 and Japanese Utility Model Publication No. 61-23497 disclose aluminum load carriers for dump trucks, in the conventional aluminum load carrier for dump trucks, the floor is The bottom plate is made of a thick aluminum plate, and the aluminum hollow extruded shape reinforcing member supporting the bottom plate is welded to the reinforcing member.

[0003]

In the conventional aluminum loading platform for dump trucks described above, in the rear portion of the floor, when the loading platform is tilted, the sand and the like that slide down on the floor surface cause severe wear, resulting in poor wear resistance. There was a problem. Also,
Since the floor is formed by welding the two members of the bottom plate and the reinforcing material, there is a problem that the number of welding steps increases.

An object of the present invention is to provide an aluminum carrier for a dump truck which is excellent in wear resistance and requires a small number of welding steps.

[0005]

In the aluminum loading platform for dump trucks according to the present invention, the floor is composed of a required number of hollow extruded aluminum hollow floor panels, and one of two adjacent floor panels is used. One of the fitting concave portion and the fitting convex portion is provided on the side edge portion of the floor panel, and the other is provided on the side edge portion of the other floor panel, and the fitting convex portion is fitted to the fitting concave portion. The wear-resistant metal plate is attached to the rear part of the upper surface of the floor with an adhesive.

[0006]

In the aluminum loading platform for dump trucks according to the present invention, the floor is made up of the required number of hollow extruded aluminum floor panels, and one of the two adjacent floor panels has a side edge portion. One of the fitting concave portion and the fitting convex portion is provided at the side edge portion of the other floor panel, and the other fitting mating convex portion is fitted to the fitting concave portion. Since a wear-resistant metal plate is attached to the rear part of the adhesive with an adhesive, compared with the conventional one in which the floor is formed by welding two members of an aluminum bottom plate and a reinforcing material. , The welding man-hour is small,
Moreover, the most wear-resistant part of the rear part of the floor top surface is protected by the wear-resistant metal.

[0007]

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

FIG. 1 shows an aluminum cargo bed (1) for a rear dump truck having a bottom-opened one-side shape. The cargo bed (1) is a floor.
(2), right and left side walls (3), front wall (4), rear wall (5) and floor reinforcing plate (6), and iron plate (21) is located on the floor (2) at the rear part of the floor (2).
It is attached by an adhesive so as to cover a third of the rear portion of the upper surface.

As shown in FIG. 2 and FIG. 3, the floor (2) and the left and right side walls (3) are hollow panels (7), (8), (9), (10) made of extruded aluminum profiles extending in the front and rear direction. (11) is formed by combining the required number. The floor (2) is composed of six floor panels (7) having a rectangular cross section, two floor panels (8) having a substantially T-shaped cross section, and the connection between the floor (2) and the left and right side walls (3). It consists of two floor panels (9) with a substantially L-shaped cross section, and the left and right side walls (3) are top and bottom panels (10) with a vertical rectangular cross section.
It consists of (11). Each of the panels (7), (8), (9), (10) and (11) has a reinforcing wall (7a) (8a) (9a) (10a) (11a) inside. The floor panel (8) having a substantially T-shaped cross section has a floor structure section having a horizontal cross section,
A U-shaped main girder component (12) corresponding to the main girder, which was a separate member in the past, is integrally provided in a downward protruding shape. The T-shaped floor panel (8) has a main girder portion ( It is arranged so that 12) is located at a position that divides the floor (2) into approximately three equal parts.

The thickness of the main girder portion (12) and the reinforcing wall (8a) of the T-shaped floor panel (8) is the same as the upper and lower walls (7b) of the floor panels (7) (8) (9).
It is thicker than (8b) (9b) (7c) (8c) (9c).

The iron plate (21) is the inner wall (9d) of the L-shaped panel (9).
It has a rising part (21a) along the. Of course, a wear resistant metal may be attached instead of the iron plate (21). By doing so, the most wear-resistant part of the floor (2) is protected by the wear-resistant metal, so that the wear resistance is improved. For the length of the floor (2) protected by the iron plate (21),
From the standpoint of reducing weight and ensuring wear resistance, floor
About 1/5 to 1/2 of the rear part of (2) is preferable.

Since the constructions of the connecting portions of the respective panels (7) (8) (9) (10) (11) are all the same, the connecting portions of the floor panels (7) (8) that are adjacent to each other on the left and right sides will be described. , FIG. 3 and FIG.

Out of the floor panels (7) and (8) adjacent to each other on the left and right, a fitting recess (13) is provided at the right edge of the left panel (7) and fitted at the left edge of the right panel (8). A convex portion (14) is provided. Inserting parts (15) are provided on both upper and lower sides of the fitting concave part (13), and leftward protruding ridges (16) for preventing the inserting part (15) from coming off are provided on both upper and lower sides of the fitting convex part (14). It is provided in parallel with the fitting convex portion (14) at a predetermined interval. The fitting concave portion (13) further has a rightward convex shape (17) for suppressing the inward movement of the left end portion of the fitting convex portion (14) at a predetermined distance from the fitting concave portion (13). It is provided in parallel. Then, the fitting convex portion (14) of the right panel (8) is fitted into the fitting concave portion (13) of the left panel (7), and the insertion portion (15) is convex to the left with the fitting convex portion (14). Article
Inserted in the gap between (16) and the fitting protrusion (14)
The left end of the mating recess (13) and the right-hand ridge (1) of the mating recess (13).
It is inserted in the gap between 7). The connecting pin fitting through-hole (1) is provided on the facing surface of the insertion part (15) and the fitting convex part (14).
The grooves forming 8) face each other and the panels (7) (8)
Are provided over the entire length of. Then, the connecting pin (19) is tightly inserted into the connecting pin fitting through hole (18), and the two panels (7) and (8) are connected by pin connection. In addition,
As shown in FIG. 3, a fitting recess (13) is formed at the right edge of the L-shaped floor panel (9) at the left end, and the fitting recess (13) is formed.
The fitting protrusion (14) formed on the left edge of the adjacent floor panel (7) is fitted to the above, and the fitting protrusion (14) is formed on the upper edge.
Is formed, and a fitting recess (13) formed at the lower edge of the lower panel (11) is fitted to this.

In this embodiment, each panel (7) (8) (9) (10)
To assemble (11), each panel (7) (8) (9) (10) (11)
Since it suffices that they be fitted to each other and the connecting pin (19) be inserted into the through hole (18), the number of assembling steps and the number of welding steps can be significantly reduced, and the workability is excellent. The connection is not limited to the pin connection, and welding may be used in order to prevent sand from entering. For example, the inner wall of the side wall panel and the upper wall of the floor panel may be welded to each other, and the outer wall of the side wall panel and the lower wall of the floor panel may be pin-joined to prevent sand from entering. In addition, the welding man-hour can be reduced as compared with the conventional method in which all welding is performed.

[0015]

According to the aluminum loading platform for dump trucks of the present invention, the floor is composed of an aluminum bottom plate and a reinforcing member.
Compared to the conventional ones that are formed by welding members, the welding man-hours are less, so the assembly man-hours can be reduced, and furthermore, the most wear-resistant part of the rear part of the floor top surface is made of wear-resistant metal. As it is protected, wear resistance is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an aluminum carrier for a dump truck according to the present invention.

FIG. 2 is a longitudinal sectional view of the same.

3 is an enlarged cross-sectional view of a main part of FIG.

FIG. 4 is an enlarged cross-sectional view of a main part of FIG.

[Explanation of symbols]

 (1) Dump truck bed (2) Floor (7) (8) (9) Floor panel (13) Mating recess (14) Mating protrusion (21) Steel plate

Claims (1)

[Claims] 1. The floor (2) comprises a required number of hollow floor panels (7), (8), (9) made of extruded aluminum and adjacent two.
Of the two floor panels (7) and (8), one of the fitting recesses (13) and the fitting projections (14) on the side edge of one floor panel (7) is the other floor panel. The other side is provided at the side edge of (8),
The fitting protrusion (14) is fitted into the fitting recess (13),
The aluminum load carrier for a dump truck according to claim 1, wherein a wear-resistant metal plate (21) is attached to the upper surface of the floor (2) with an adhesive.