JPH115568A - Hollow extruded shape side wall in vessel of dump truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To markedly reduce the number of members and welding man-hours of the fellow members, by forming a side wall in a vessel of a dump truck as a structure of fitting together a plurality of hollow extruded shapes. SOLUTION: A side wall is formed out of a plurality of hollow extruded shape side wall constitutional members, of vertically adjacent side wall constitutional members 1, 2, in a lower surface of the side wall constitutional member 1 in an upper side, a fitting protruded part 3 is provided, in an upper surface of the side wall constitutional member 2 in a lower side, a fitting recessed part 4 is provided, of both side surfaces thereof, in a pallet side and a lower part of an opposite side surface 6a, a groove 7 is provided, of both side surfaces of the fitting protruded part 3, in a pallet side and a lower part of an opposite side surface 9a, a sideward protruded part 8 placed in the groove 7 is provided, a space L of both side surfaces of the fitting recessed part 4 upward from the groove 7 is formed wider than the width of the sideward protruded part 8 of the fitting protruded part 3, in a space 11 of a pallet side surface 9b of the fitting protruded part 3 and a pallet side surface 6b of the fitting recessed part 4, a spacer 12 is inserted, also a joint part in a pallet side surface 1a, 2a of the side wall constitutional member 1 in an upper side and the side wall constitutional member 2 in a lower side is welded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hollow extruded profile side wall in a vessel of a dump truck.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a vessel of a dump truck has a lower end portion of a side wall plate (52) at a side edge of a floor plate (51).
(52a) is welded, and a top rail (53) is welded to the upper end (52b) of the side wall plate (52).
A reinforcing member (54) (55) (56) having an inverted U-shaped cross section is welded to the outer surface of the side wall plate (52) below the reinforcing member (54).
(55) (56) were also welded together.

[0003]

However, in the conventional vessel side wall, as described above, a large number of side walls (52), top rails (53), reinforcing members (54), (55), (56) and the like are provided. Since the constituent members are required, and welding work is required at many places to connect the members, there has been a problem that a great deal of labor and time are required for manufacturing.

An object of the present invention is to provide a side wall made of a hollow extruded section in a vessel of a dump truck, which can greatly reduce the number of welding steps and the number of components. is there.

[0005]

The side wall of the vessel of the dump truck according to the present invention is composed of a plurality of side wall components made of hollow extruded profiles, and the upper side wall member among the vertically adjacent side wall members. A fitting convex portion is provided on the lower surface of the device, and a fitting concave portion is provided on the upper surface of the lower side wall component,
A groove is provided in a lower portion of the opposite side surface of the fitting concave portion on the side opposite to the loading platform, and a side protruding portion which is inserted in the groove is provided in a lower portion of the opposite side surface of the fitting convex portion on the opposite side of the loading platform side. The distance between both side surfaces of the fitting recess above the groove is made wider than the width of the side protrusion of the fitting protrusion, so that the fitting protrusion and the fitting recess are fitted and fitted. By moving the convex part to the opposite side to the loading side, fitting the side protruding part into the groove, and welding the seam part on the side of the loading side of the upper side wall component and the lower side wall component, the upper side The side wall constituent member and the lower side wall constituent member are combined.

[0006]

Next, embodiments of the present invention will be described with reference to the drawings. 1 and 2, the side wall is composed of two side wall components (1) and (2) made of a hollow extruded member made of an aluminum alloy, and a fitting projection (3) is formed on the lower surface of the upper side wall component (1). ), A fitting recess (4) is provided on the upper surface of the lower side wall component (2), and a lower portion of the side surface (6a) of the fitting recess (4) opposite to the loading platform (5) side is provided on both sides. A groove (7) is provided at the bottom of the side surface (9a) opposite to the side of the loading platform (5) on both side surfaces of the fitting projection (3).
(8) is provided, and the distance (L) between the side surfaces (6a) and (6b) of the fitting concave portion (4) above the groove (7) is the side protrusion (3) of the fitting convex portion (3). 8) is wider than the width (W) in
The fitting protrusion (3) and the fitting recess (4) are fitted together, and the fitting protrusion (3) is moved to the side opposite to the loading platform (5) side so that the side protrusion (8) is formed into a groove ( 7), and the side of the loading platform of the mating projection (3)
(9b) and the clearance (1
Insert the spacer (12) into 1) and make the upper side wall component
The upper side wall component (1) and the lower side wall component (2) are joined by welding the joint (13) on the side (1a) and (2a) of the carrier side of the (1) and the lower side wall component (2). Is what is being done.

The side of the loading platform (9b) of the fitting projection (3) and the fitting recess
On the side (6b) of the loading platform (4), opposing grooves for inserting spacers
(14a) and (14b) are provided, and as shown in FIG.
a) The corresponding side surfaces of the spacers (12) abut in the (14b). And in this embodiment,
By providing such a groove for inserting a spacer (14a) (14b), the spacer (12) is held in the double groove (14a) (14b). There is no movement of the spacer (12) due to the above.

[0008] A groove in the side of the loading platform (6b) of the fitting recess (4).
The upper part of (14a) has a first inclined surface (1
5), and the presence of the first inclined surface (15) allows the fitting convex portion (3) of the upper side wall component (1) to be connected to the lower side wall component.
When fitting into the fitting concave portion (4) of (2), while the loading-portion-side tip corner portion (3a) of the fitting convex portion (3) is in contact with the first inclined surface (15),
Since it is guided into the fitting concave portion (4), the fitting convex portion (3) can be fitted more easily. A second inclined surface (16) is provided on the upper surface of the lower side wall component (2) on the side (2b) opposite to the side of the carrier (5).
Which is in contact with a third inclined surface (17) provided on the lower surface of the upper side wall component (1).
(16) By contact of (17), inflow of rainwater or the like into the fitting concave portion (4) of the lower side wall component (2) can be prevented.

In addition, the side surface of the bed of the lower side wall component (2)
On the upper part of (2a), a fourth inclined surface (18) is provided, which is provided on the lower surface of the upper side wall component (1).
It is made to abut.

In the present embodiment, the lateral protrusion (8) of the fitting projection (3) is fitted into the groove (7) of the fitting recess (4), and the fitting projection is formed.
The spacer (12) is inserted into the gap (11) formed between the carrier side (9b) of (3) and the carrier side (6b) of the fitting recess (4). Without the upper side wall component (1)
By welding the seam portion (13) on the side (1a) (2a) of the loading platform of the lower side wall component (2), the upper side wall component
(1) and the lower side wall component (2) may be connected.

The side wall has a two-member structure consisting of an upper side wall constituent member (1) and a lower side wall constituent member (2).
A side wall component may be further interposed in the middle of (2), and the number of side wall components is not particularly limited.

[0012]

The present invention comprises a plurality of side wall components made of hollow extruded profile members, and a fitting projection provided on the upper side wall component and a fitting provided on the lower side wall component. While fitting the concave portion, the fitting convex portion is moved to the side opposite to the loading platform side, and the side protruding portion is fitted into the groove of the fitting concave portion,
The upper side wall component and the lower side wall component are joined by welding a joint portion of the upper side wall component and the lower side wall component on the side surface of the carrier. Therefore, the number of constituent members is greatly reduced as compared with the side wall in the vessel of the conventional dump truck, and the welding operation of each member is substantially performed by the upper side wall constituent member and the lower side wall constituent member. Since only the joint portion on the side of the carrier is required, the labor and time required for the manufacturing operation are greatly reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a vessel side wall showing one embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing a coupling state between side wall components in the embodiment of FIG. 1;

FIG. 3 is a cross-sectional view of a vessel side wall showing a conventional example.

[Explanation of symbols]

(1): Upper side wall constituent member (2): Lower side wall constituent member (3): Fitting convex part (4): Fitting concave part (5): Carrier (6a): Side opposite to the carrier side of the fitting concave part ( 6b): Side of platform of fitting recess (7): Groove (8): Side projection (9a): Side opposite to platform side of fitting projection (9a): Side of platform of fitting projection (11) : A gap formed between the side of the loading platform of the fitting projection and the side of the loading platform of the fitting recess. (12): Spacer (13): Joint between upper and lower side wall components

Claims (1)

[Claims] 1. A side wall component made of a plurality of hollow extruded profile members, and a fitting projection is provided on a lower surface of an upper side wall component among vertically adjacent side wall components, and a lower side wall configuration is provided. A fitting recess is provided on the upper surface of the member, and a groove is provided in a lower portion of the opposite side surface of the fitting recess on the side opposite to the loading platform, and a side of the opposite side to the loading platform side of both sides of the fitting projection is provided. The lower portion is provided with a lateral protrusion that is inserted into the groove, and the interval between the both side surfaces of the fitting concave portion above the groove is made wider than the width of the lateral protrusion of the fitting convex portion. The fitting portion and the fitting concave portion are fitted together, and the fitting convex portion is moved to the side opposite to the loading platform, and the side projecting portion is fitted into the groove, and the loading side surface of the upper side wall component member and the lower side wall component member. The upper side wall component and the lower side wall component are joined by welding the joint portion at Hollow extruded side walls in the dump truck vessel.