JPS5919631Y2 - Fixing structure between the rear cover of the loading platform and the pillar in a power transport vehicle - Google Patents

Description

[Detailed description of the invention] This invention relates to the fixing structure between the rear cover of a loading platform and a column in a power transport vehicle such as a dump truck, and the pillars provided at both ends of the rear cover serve as pillars that support the rear cover in a suspended state. In addition to being functional, the rear cover can be removed from the cargo platform if necessary.

Therefore, the side lid and rear lid of the cargo bed are not engaged directly as in conventional power carriers, but are engaged through the pillars.

In this invention, a column 3 is erected at the rear corner of a loading platform 2 of a power carrier 1, and a hook 4 is provided at the top of the column 3 with an opening S that gradually widens toward the open end facing forward. At the base end of the rear lid 5 which is connected and stands upright on the rear edge of the loading platform 2, there is provided a hook receiver 7 that automatically attaches and detaches from the locking device 6 installed on the lower surface of the loading platform. The shaft part 8 of the bundle lever 8 attached to
This relates to a structure for fixing a rear lid of a loading platform and a column in a power carrier, in which the hook 4 is engaged with the hook 4.

The column 3 is connected to a guide 9 vertically installed at the rear corner of the loading platform 2.
The base portion is removably attached to and fixed by inserting and inserting a pin 10.

Furthermore, a contact portion 3a is provided protruding from the side surface of the column 3, which serves as a stopper when the side cover 11 is erected.

The locking device 6 consists of an upwardly open hook 12 that is pivoted halfway at the lower end of the loading platform 2, and a rod 13 that is interlocked and connected to the base end of the hook, and is configured to prevent the loading platform 2 from tilting during the dumping operation. When the loading platform 2 returns to the horizontal position, the rod 13 pushes the base end of the hook 12 and rotates the hook 12 downward about the pivot 14.
The hook 12 is configured to be rotated upward by pulling the base end.

Moreover, when the loading platform 2 is lowered to a horizontal state by the hydraulic cylinder device 17, which is a tilting device, the hook 12 rotates upward about the pivot portion 14, and is protruded from the base end of the rear cover 5. The hook 12 is automatically engaged with the hook receiver 7, and when the loading platform 2 is tilted, the hook 12 rotates downward about the pivot 14 and is automatically removed from the hook receiver 7. .

The bundle lever 8 attached to the upper part of the rear cover 5 is formed in an L shape, and its shaft portion 8a is inserted through the bearing 15, and is inserted between the flange portion 8b provided at the base end of the shaft portion 8a and the bearing 15. When engaging the hook 4 of the column 3 with the push spring 16 interposed therebetween, the handle portion 8C of the bundle lever 8 is pulled by hand and reversed.

In this invention, when dropping earth and sand loaded on the loading platform 2, the hydraulic cylinder device 17 is activated to tilt the loading platform, and the hook receiver 7 provided at the base end of the rear cover 5 and the lower surface of the loading platform are installed. The lock with the locking device 6 is automatically released, and the lid is then automatically suspended around the shaft 8a of the handle lever 8 that engages the hook 4 of the column 3 erected at both ends of the lid. In addition, since the hook 4 has an opening S that gradually widens toward the open end and opens forward, when the loading platform is tilted, the opening S of the hook 4 faces upward, and the shaft of the rear cover 5 in the suspended state 8a does not separate from the hook 4, and separates from the loading platform 2 at the base end of the rear cover 5 to form an opening, through which earth and sand etc. can be dropped.

After dropping the earth and sand, etc., if the loading platform 2 is lowered to a horizontal position by the hydraulic cylinder device 17, the suspended rear cover 5 will return to the rear edge of the loading platform 2 due to its own weight, and The hook 12 of the locking device 6 automatically engages with the hook receiver 7 and is fixed in the upright state.

In addition, when loading and unloading objects to and from the loading platform 2, the rear lid 5
If this becomes an obstacle, the rear cover 5 can be easily removed from the loading platform 2 by operating the handle lever 8 to disengage the column 3 from the hook 4.

As described above, according to this invention, the opening S of the hook 4 is gradually widened toward the opening end and is directed forward, so that the column 3 and the rear cover erected at the rear corner of the loading platform 2 are Due to the engagement relationship with 5, not only can the rear cover 5 be stably fixed even when the loading platform is tilted, but it can also be easily removed if necessary.
In addition, the removal and installation are performed using the hook 4 and the shaft portion 8a during work.
The work of engaging and disengaging the hooks is also very convenient in practice because the engagement and disengagement work can be easily carried out by the hook openings that are formed gradually wider.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a power carrier to which the rear cover and column fixing structure of the present invention is applied. FIG. 2 is a side view of the main parts. FIG. 3 is a plan view of the same. FIG. 4 is a rear view of the same. 1: Power carrier, 2: Loading platform, 3: Pillar, 4: Hook, 5: Back cover, 6
: Locking device, 7: Hook holder, 8: Handle lever 8a
: Shaft of handle lever.

Claims (1)

[Scope of utility model registration request] A column 3 is erected at the rear end corner of the loading platform 2 of the power carrier 1,
A hook 4 having an opening that gradually widens toward the front opening end is connected to the top of the column 3, and is installed at the base end of a rear lid 5 that stands upright on the rear edge of the loading platform 2 on the lower surface of the loading platform. Locking device 6
In addition to providing a hook holder 7 that automatically attaches and detaches the rear cover 5.
Bundle lever 8 is attached to the upper end of the bundle lever so that it can slide freely in the axial direction.
A structure for fixing a rear lid of a loading platform and a pillar in a power carrier, in which the shaft portion 8a of the shaft portion 8a is configured to be able to be freely engaged with the hook 4.