JP2932040B2 - Packing box guidance device for dump trucks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dump truck in which a packing box is tiltably mounted on a shiyashi frame. It concerns the device.

[0002]

2. Description of the Related Art In a dump truck in which a packing box is tiltably mounted on a palm frame, a roll-prevention member is provided on a side surface of the palm frame, and this member is engaged with a girder frame of the packing box. Technical means for preventing the cargo box from rolling during traveling are well known (see Japanese Patent Publication No. 59-24025 and Japanese Utility Model Publication No. Sho 50-17126).

[0003]

By the way, in general, in a dump truck, when a packing box is dropped on a shiyashi frame from an inclined position, the packing box is guided and guided to a proper seating position on the shiyashi frame. The guide member is configured to be installed. The packing box can be guided smoothly and securely on the shiyashi frame. . Simple configuration and affordable; Easy and easy installation on the shiyashi frame. It can be used over the long term, but like is required, the present invention is by attaching the guide member to the rolling preventing member, and to be able to satisfy the request, to provide a guiding device for crates in the novel tipper It is intended for.

[0004]

According to a first aspect of the present invention, there is provided a dump truck in which a tiltable packing box is mounted on a palm frame. A roll prevention member facing the girder frame of the packing box is fixed to the side surface, and the packing box is guided in sliding contact with the girder frame on a surface of the roll prevention member facing the girder frame.
Guide member can be selectively moved to first and second position
To prevent the cargo box from swaying,
The guide member can be selectively slidably contacted with the girder frame of the packing box.
First and second guide surfaces are formed, and the guide member is located at a first position.
The first guide surface is in the
(2) Each of the guide surfaces slides into contact with the girder frame of the packing box to plan the packing box.
To be able to do it .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is an overall side view of a dump truck equipped with the apparatus of the present invention, FIG. 2 is an enlarged sectional view taken along line 2-2 in FIG. 1, and FIG. 3 is a sectional view taken along line 3-3 in FIG. FIG. 4 is an enlarged partial sectional view taken along line 4-4 in FIG.

In FIGS. 1 to 4, a dump truck shiyashi frame F is constructed by mounting and fixing a sub-frame 2 on a main frame 1 on which front and rear wheels are suspended. 3 is placed and fixed.

A rear end of the packing box 5 is hingedly connected to a rear end of the sub-frame 2 with a hinge bracket 4.
This packing box 5 is seated on the receiving tree 3. A lift cylinder Cy is connected between the packing box 5 and the palm frame 1, and the packing cylinder 5 can be tilted rearward around the hinge connection portion by the extension operation of the lift cylinder Cy.

The packing box 5 is constructed by placing and fixing a floor plate 7 made of a steel plate or the like on a girder frame 6 made of a steel material or the like, and the girder frame 6 extends left and right in the front-rear direction. Main girder 6
_1, a plurality of cross members 6 ₂ to bridge connecting between them orthogonal These and main beam _61, the left and right main girder 6
₁ of which is secured to the outer surface is more structure and more outriggers 6 ₃ that is flared outward, respectively side Aoto 8 on the left and right side edges of the floor plate 7 which is laid fixed on the girder frame 6
Is hinged via a hinge 9 so that it can be opened and closed freely.

As clearly shown in FIG. 2, a roll preventing member 10 for preventing the roll box 5 from rolling is welded to the outer surface of the sub-frame 2 having a channel-like cross section of the shiyashi frame F. Have been. The anti-rolling member 10 includes a vertical anti-rolling frame 11 and a supporting horizontal frame 1 welded to an upper portion thereof.
2 is comprised. The anti-yaw vertical frame 11 is formed by channel member forming a U-shaped section, the by the intermediate portion a slit 13 is formed by bending a mountain, a substantially vertical lower half 11 ₁ The upper half 11 inclined in a direction away from the outer surface of the sub-frame 2
It is composed of _two . And the upper half portion 11 _2,
The inclined surface opposed to the main girder ₆₁ of the load box 5, mounting surface 14 for mounting the guide member 17 to be described later is formed.

On the other hand, the supporting horizontal frame 12 is also formed of a channel material having a U-shaped cross section, and its base is welded to the upper portion of the vertical frame 11 for preventing rolling. A reinforcing piece 2 is provided at the joint between the anti-rolling vertical frame 11 and the supporting horizontal frame 12.
1 is reinforced by welding. The supporting horizontal frame 12 is extended substantially horizontally cantilever shape along the outrigger 6 ₃ of the load box 5 is formed with a flat outrigger 6 ₃ abutment surface 15 on the upper surface thereof, the receiving surface A plate-like rubber 16 is bonded to 15. In addition, support horizontal frame 1
2, the lower surface is inclined upward toward the tip,
It is formed in a tapered shape in side view.

[0012] The anti-yaw vertical frame 11, the mounting surface 14 of the upper half portion 11 _2, the guide member guides the main girder ₇₁ of the load box 5 1
7 is detachably attached. This guide member 17 is shown in FIG.
As is clearly shown in the figure, it is formed in a square block shape from a synthetic resin material having elasticity, and the top surface thereof has a central ridge line L
The first and second guide surfaces G ₁ and G _{2, which} are inclined downward toward the left and right side edges with respect to the boundary, are formed symmetrically in a roof shape, and the bottom surface thereof is provided at the center thereof. Fitting projection 1
8 and is formed on a flat surface.

The guide member 17 is provided with the anti-rolling vertical frame 11.
Removably attached to the mounting surface 14 of the half 11 ₂ on the. That is, the guide member 17 has its bottom surface superimposed on the mounting surface 14, and its fitting protrusion 18 is fitted into a fitting hole 19 formed in the mounting surface 14.
It is fixed to the mounting surface 14 by a nut 20. Thus, the guide member 17 is substantially 180 degrees around its center line CC.
By ° be reversed, first, it is possible selectively attached to the second position, the first, main beam ₆₁ of the second guide surface G _1, G ₂ are packing boxes 5 either one of them It is possible to selectively replace and use the guiding surfaces and the other of them as their oscillating contact surfaces.

Next, the operation of this embodiment will be described. Now, according to the contraction operation of the lift cylinder Cy, the packing box 5 is moved down from the inclined position shown by the chain line in FIG.
While being seated on the receiving part 3 on sheet palm frame 1 as shown by the solid line, in the process, the left and right main beam ₆₁ of the load box 5 of the left-right direction by the first guide surface G ₁ of the guide member 17 It is placed while being guiding the normal position its second guide surface G ₂ to be sliding contact guided to the proper position on the receiving part 3 of the sub-frame 2. And when dump truck traveling, the main girder ₆₁ of the load box 5 is restrained from moving in the lateral direction by the second guide surface G _2, which roll the packing box 5 is prevented.

Since the guide member 17 is made of an elastic synthetic resin material, the wear resistance of the contact surface between the packing box 5 and the guide member 17 is reduced. Sticking can be prevented. Guide member 1
7 is worn or deformed due to long-term use, the bolt / nut 20 is removed, and then the guide member 17 is turned by about 180 ° about its center line C-C, and the bolt / nut 20 is again rotated. By fixing the guide member 17 from the first position to the second position, the first and second guide surfaces G ₁ and G ₂ can be replaced and reused.

Although one embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various embodiments are possible within the scope of the present invention. For example, the guide member may be formed of another elastic material such as synthetic rubber in addition to the synthetic resin material, and the guide member may not be formed in a symmetric shape.

[0017]

As described above, according to the present invention , a roll prevention member facing the beam frame of the packing box is fixed to the side face of the palm frame, and the roll prevention member is fixed to the side of the beam frame. A guide member for slidingly contacting the girder frame and guiding the packing box is detachably mounted on the opposing surface so as to be selectively relocated to the first and second positions to prevent the packing box from rolling. And the guide member is formed with first and second guide surfaces capable of selectively slidingly contacting the girder frame of the packing box, and the guide member has the first guide surface when in the first position. since the second guide surface when in the second position is to be guided packing boxes digit frame and sliding contact with packing box, respectively, said guide member with antiroll member
It can be mounted together in one place of the chassis frame.
The mounting of the guide member can be performed easily and easily.
Also, one guide member can be replaced and used twice, which can contribute to cost reduction.

[Brief description of the drawings]

FIG. 1 is an overall side view of a dump truck equipped with the device of the present invention.

FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is an enlarged partial sectional view taken along line 4-4 in FIG. 3;

[Explanation of symbols]

5 ... packing box 6 ... girder frame 10 ... anti-rolling member 17 ... guide member F ... shiyashi frame G ₁ ... ... first guide surface G ₂ ····· second guide surface

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60P 1/04

Claims (1)

(57) [Claims] 1. A dump truck in which a tiltable packing box (5) is mounted on a palm frame (F), wherein a side of the palm frame (F) has a beam frame (6) of the packing box (5). An opposing anti-roll member (10) is fixed, and the anti-roll member (10) slides on the surface of the anti-roll member (10) opposed to the girder frame (6) to come into sliding contact with the girder frame (6). The guide member (17) for guiding 5) is selectively moved to the first and second positions.
Attached detachably so that it can be replaced, next to the packing box (5)
The guide member (17) has a packing box (5) to prevent shaking.
First and second guides that can selectively make sliding contact with the spar frame (6)
Surfaces (G ₁ , G ₂ ) are formed and said guide member (17)
Is the first guide surface (G ₁ ) when in the first position,
When in the two positions, the second guide surface (G ₂ ) is a packing box
Guide the packing box (5) by sliding contact with the girder frame (6) of (5).
A cargo box guide device for a dump truck, characterized in that it can be used .