JPH0858629A - Aluminum load-carrying platform for dump car - Google Patents

Abstract

PURPOSE: To provide a load-carrying platform less in the number of part items and man-hour for welding and excellent in wear resistance. CONSTITUTION: A floor 2 comprises the required number of hollow floor panels 7, 8, and 9 of aluminum protruded material, 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 a girder structure part 12 is installed integrally on the floor panel 8. Then the thickness of the upper walls 7b, 8b, and 9b of the floor panels 7, 8, and 9 is made twice that of the lower walls 7c, 8c, and 9c.

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 Japanese Utility Model Publication No. 61-7974 and Japanese Utility Model Publication No. 61-23497 disclose aluminum load carriers for dump trucks. In this conventional aluminum load carrier for dump trucks, the side walls are It consists of the required number of aluminum hollow extruded profile panels, the floor consists of an aluminum thick plate bottom plate and the aluminum hollow extruded profile reinforcement material that supports this, and the bottom plate is welded to the reinforcement material. .

[0003]

In the conventional aluminum loading platform for dump trucks, since the floor is formed by welding the two members of the bottom plate and the reinforcing material, the number of parts and the number of welding steps increase. was there.

An object of the present invention is to provide an aluminum loading platform for a dump truck, which requires a reduced number of parts and welding steps.

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

[0006]

The aluminum load carrier for dump trucks according to the present invention is an aluminum load carrier for dump trucks having a floor and a side wall, and the floor is a hollow floor made of a required number of aluminum extruded profiles. Of the two adjacent floor panels, one of the fitting concave portion and the fitting convex portion on one side edge portion of the floor panel, and the other on the side edge portion of the other floor panel It is provided that the fitting convex portion is fitted in the fitting concave portion.

The side wall is composed of a required number of hollow side wall panels made of aluminum hollow extruded shape, and one of the side wall panel at the lower end of the side wall and the floor panel adjacent thereto is fitted with a fitting recess at the side edge of one panel. It is preferable that one of the fitting convex portions is provided at the side edge portion of the other panel, and the other is provided, and the fitting convex portion is fitted in the fitting concave portion.

Further, it is preferable that the main girder constituting portion is integrally provided on the floor panel.

Furthermore, it is preferable that the thickness of the upper wall of the floor panel is thicker than the thickness of the lower wall.

[0010]

In the aluminum loading platform for the dump truck 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. Since either one of the fitting concave portion and the fitting convex portion is provided on the side edge portion of the other floor panel, the fitting convex portion is fitted to the fitting concave portion. The number of parts and the number of welding steps can be reduced as compared with the conventional one in which the floor is formed by welding the two members of the aluminum bottom plate and the reinforcing material.

The side wall is made up of a required number of hollow side wall panels made of aluminum hollow extruded shape, and one of the side wall panel at the lower end of the side wall and the floor panel adjacent thereto is fitted with a fitting recess at the side edge portion of one panel. In the case where one of the fitting protrusions is provided on the side edge of the other panel and the other is provided and the fitting protrusion is fitted into the fitting recess, both the floor and the side wall are made of aluminum hollow extrusion. Since it is composed of a panel made of a profile, the appearance is very good.

When the floor girder is integrally provided with the main girder component, the main girder conventionally required as a separate member becomes unnecessary.

If the upper wall of the floor panel is thicker than the lower wall, the wear resistance is improved.

[0014]

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-sided 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).

As shown in FIGS. 2 and 3, the floor (2) and the left and right side walls (3) are hollow panels (7), (8), (9) and (10) made of aluminum extruded profile extending in the front and rear directions. (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 panel (7) (8) (9) (10) (11) has a vertical reinforcing wall (7a) (8a) (9a) (10a) (11a) inside. Of course, the reinforcing wall may be inclined instead of vertical. 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) is a main girder component. The (12) is arranged so as to come to a position that divides the floor (2) into approximately three equal parts. The main girder component (1
2) may have a rectangular shape instead of the U shape, and a reinforcing wall may be provided inside.

Upper wall (7b) (8b) (9b) of each floor panel (7) (8) (9)
Has a thickness twice that of the lower walls (7c) (8c) (9c). Also, the thickness of the inner wall (9b) of the L-shaped floor panel (9), T
-Shaped floor panel (8) reinforcement wall (8a) thickness and main girder components
The thickness of (12) is also increased. Each floor panel (7) (8)
(9) The thickness of the lower walls (7c), (8c), and (9c) is preferably 2 to 4 mm from the viewpoint of weight reduction, and the thickness of the upper walls (7b), (8b), and (9c) is wear resistance. From the point of, the thickness of the lower wall (7c) (8c) (9c) is 2
It is preferably twice or more, specifically 4 to 8 mm.

Since the constructions of the connecting portions of the panels (7), (8), (9), (10) and (11) are all the same, the connecting portions of the floor panels (7) and (8) that are adjacent to each other on the left and right sides are , 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 on the right edge of the left panel (7) and fitted on 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, in order to assemble the loading platform (1), the panels (7), (8), (9), (10) and (11) are fitted to each other, and the connecting pin (19) is inserted into the through hole (18). ), The assembly man-hours can be greatly reduced, and it is excellent in work-manufacturing. The connection is not limited to the pin connection, and welding may be used in order to prevent the entry of mud and sand. 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.

[0021]

According to the aluminum load carrier for dump trucks of the present invention, the number of parts and the number of welding steps are reduced as compared with the conventional one in which the floor is formed by welding the two members of the bottom plate and the reinforcing material. The number of side walls is made up of the required number of hollow aluminum side wall panels made of extruded aluminum hollow, and the side edge of one of the side wall panels at the bottom of the side wall and the floor panel adjacent to it In one in which one of the fitting concave portion and the fitting convex portion is provided at the side edge portion of the other panel and the fitting convex portion is fitted in the fitting concave portion, the floor and Since both side walls are made of aluminum hollow extruded profile panels,
The appearance is very good.

In the case where the main girder forming portion is integrally provided on the floor panel, the main girder, which was conventionally required as a separate member, is not required, so that the number of parts and the number of welding steps can be further reduced. .

If the upper wall of the floor panel is thicker than the lower wall, the 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 (3) Side walls (7) (8) (9) Floor panel (7b) (8b) (9b) Upper wall (7C) (8C) (9C) Lower wall (10 ) (11) Side wall panel (12) Main girder component (13) Mating recess (14) Mating protrusion

Claims (4)

[Claims] 1. An aluminum loading platform for a dump truck having a floor (2) and a side wall (3), wherein the floor (2) is a hollow floor panel (7) (8) made of a required number of aluminum extruded profiles. ) (9)
Of the two adjacent floor panels (7) and (8), one floor panel (7) has a fitting recess (13) and a fitting projection (14) at the side edge of the floor panel (7).
One of the two is provided at the side edge of the other floor panel (8) and the other is provided, and the fitting protrusion (14) is fitted in the fitting recess (13). Aluminum loading platform for dump trucks. 2. The side wall (3) is composed of a required number of hollow side wall panels (10) (11) made of aluminum hollow extruded profile, and the lower side wall panel (11) and a floor panel (9) adjacent thereto. Out of
On one side of the panel (11), the fitting recess (14) and the fitting projection (1
One of the above 3) is provided at the side edge of the other panel (9) and the other is provided, and the fitting projection (13) is fitted in the fitting recess (14). Aluminum loading platform for dump trucks described. 3. The aluminum load carrier for a dump truck according to claim 1, wherein the floor girder (8) is integrally provided with a main girder component (12). 4. The upper wall (7b) (8b) (9b) of the floor panel (7) (8) (9)
2. The aluminum load carrier for a dump truck according to claim 1, wherein the thickness of the lower wall (7C) (8C) (9C) is thicker.