JPH11189088A - Load receiver lift device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate necessity for positioning by only assembling a mounting member in a connection member, so that mounting work can be easily performed, in the case of assembling the mounting member in the connection member. SOLUTION: In this lift device, a connection member 1 is fixedly provided almost horizontally in a side end part of a car body loading a cargo case, also a mounting member 2 is fixedly provided in both end parts of this connection member, a load receiver 5 is provided able to be up/down lifted in the mounting member 2 through a link mechanism composed of two arms 3, 4. Here, in the connection member 1, a vertical sectional shape is formed into a hollow or solid polygon.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to
In particular, the present invention relates to a mounting mechanism for mounting a mechanism for raising and lowering a loading table.

[0002]

2. Description of the Related Art FIG. 2 shows the structure of a conventional loading tray lifting device.

[0003] A connecting pipe 1 is fixedly provided in a lower portion of a rear end of a vehicle body (not shown) in a width direction thereof.
The mounting members 2 are integrally fixed to both end portions of the mounting member.

One end of the lift arm 3 is integrally supported by a pair of left and right mounting members 2 with a pivot 31 that is rotatably supported by the mounting member 2, and one end of the compression arm 4. The parts are each pivotally supported by a pivot 41.

The other ends of the left and right lift arms 3 and compression arms 4 are pivotally supported by columns 6 provided on both sides of the base end of the load receiving table 5.

The base end of the receiving table 5 is rotatably supported at the lower end of the column 6, so that the receiving table 5 is in a horizontal position.
And the vertical position shown in FIG.

The pivot 31 is connected to a lift cylinder 8 provided on the mounting member 2 via an operating arm 7.

Therefore, the column 6 is rotated up and down around the pivot 31 of the lift arm 3 by the expansion and contraction operation of the lift cylinder 8, so that the column 6 is operated by the two parallel links of the lift arm 3 and the compression arm 4. The load receiving table 5 that is pivotally arranged at a horizontal position as the column 6 moves up and down is moved up and down while maintaining the horizontal position.

In this manner, the loading table 5 is raised and lowered between the ground and the floor of a packing box (not shown) placed on the vehicle body while maintaining the horizontal position, so that the ground and the packing box are moved. Cargo loading and unloading between

[0010]

However, in the above-described conventional loading / unloading device, the connecting member 1 is fixed to the cylindrical connecting pipe 1 because the connecting pipe 1 has a cylindrical vertical cross section. In this case, it is necessary to perform the positioning of the mounting member 2, and it is necessary to perform some positioning work such as by using a jig. Since the member 2 is easily rotated, there has been a problem that the operation is complicated, such as redoing the operation.

[0011]

According to a first aspect of the present invention, there is provided a lifting / lowering apparatus for a receiving tray, wherein a connecting member is fixed substantially horizontally to a side end of a vehicle body on which a packing box is mounted, and is attached to both ends of the connecting member. A member is fixedly provided, and in the load receiving pedestal elevating device in which the load receiving pedestal is vertically movable via a link mechanism including two arms on the mounting member, the connecting member may have a hollow or vertical polygonal cross section. It is a solid one.

[0012]

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

FIG. 1 shows the overall structure of a loading / unloading device according to the present invention. In addition, as described above, the same reference numerals are given to the same members as those of the loading tray elevating device of the present invention among the members constituting the loading tray elevating device described in the section of the related art, and the description is omitted. . That is, the loading tray elevating device of the present invention comprises a connecting pipe 1, a mounting member 2, a lift arm 3, a compression arm 4, a loading tray 5, a support 6, a working arm 7, and a connecting member, similarly to the conventional loading tray elevating device. , The lift cylinder 8 is also provided, and the lifting and lowering operation of the load receiving table 5 is also performed by the expansion and contraction operation of the lift cylinder 8 similarly to the conventional load receiving table lifting / lowering device.

Here, the shape of the connecting pipe 1 of the loading stand elevating device of the present invention is different from that of the conventional connecting pipe 1.

That is, the connecting pipe 1 in the loading / unloading device of the present invention is formed of a hollow body having a longitudinal section formed in a polygonal shape (square in the illustrated example) with respect to a conventional circle.

As described above, the connecting pipe 1 is formed in a rectangular shape in a vertical section, and the mounting hole 21 of the mounting member 2 for mounting the connecting pipe 1 is also formed in a similar square shape corresponding to the connecting pipe 1 so that, when assembling, It is not necessary to position just by incorporating both ends of the connecting pipe 1 into the mounting holes 21 of the mounting member 2, and the mounting member 2 rotates relative to the connecting pipe 1 like a conventional cylindrical connecting pipe. No assembly work can be performed easily.

The mounting hole 21 formed in the mounting member 2
Are previously aligned so that the mounting member 2 is arranged at an appropriate position when assembled into the connecting pipe 1.

In this embodiment, the hollow connecting pipe 1 is used as the connecting member, but the connecting member may be a solid body as long as its cross section is polygonal.

Further, by forming the connecting pipe 1 in a rectangular cross section as shown in the figure, the peripheral surface thereof is formed by four flat surfaces, and the flat surface is required to be attached by law. There is also an advantage that the large reflecting plate 9 can be easily attached.

[0020]

As described above, according to the present invention, the connecting member for fixing the mounting member at both ends is formed to be hollow or solid with a rectangular vertical cross section, so that the mounting member can be incorporated into the connecting member. It is not necessary to perform positioning simply by incorporating the mounting member into the connecting member, and the mounting member does not rotate with respect to the connecting member unlike a conventional cylindrical connecting member, and the assembling work is easily performed. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a loading tray elevating device according to the present invention.

FIG. 2 is a perspective view showing a configuration of a conventional loading tray elevating device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connecting pipe (connecting member) 2 Mounting member 3 Lift arm 4 Compression arm 5 Loading table

Claims (1)

[Claims] 1. A connecting member is fixed substantially horizontally to a side end of a vehicle body on which a packing box is mounted, and mounting members are fixed to both ends of the connecting member. In the loading / unloading device for lifting and lowering the loading table via a link mechanism including an arm, the connecting member is formed in a hollow or solid vertical section in a polygonal shape. apparatus.