JPS636156Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cargo handling device for a forklift.

Recently, there has been an increasing demand for three-way stackers that can handle cargo in narrow passageways such as rack warehouses.

In order to use this three-way stacker in as narrow a passage as possible, the width of the movable arm must be narrow.

However, narrowing the width of the movable arm had the disadvantage that the stability of the device was poor.

The present invention was developed in view of the above circumstances, and its purpose is to provide a forklift cargo handling device that can improve the stability of a three-way stacker.

Hereinafter, the present invention will be explained with reference to the drawings.

In the drawing, 20 is a board that supports the forklift 21. Further, 22 is a rotating shaft.

An arm 15 is attached to the rotating shaft 22 via a bearing 23. A gear 24 is fixed to the rotating shaft 22, and a rotating motor 25 is fixed to the arm 15, and a gear 27 at the output end of a reducer 26 provided on the output side of the rotating motor 25 is connected to the It meshes with gear 24. A drive shaft 7 is rotatably provided vertically on the arm 15, and a gear 11 is fixedly attached to the drive shaft 7. Further, the arm 15 is provided with a motor 9, and a gear 28 at the output end of a reduction gear 10 of this motor 9 meshes with the gear 11.

A pinion 2 is attached to one end of this drive shaft 7, and a bevel gear 5 is attached to the other end.

On the other hand, a bevel gear 6 is attached to one end of a shaft 8 which is horizontally attached in the front-rear direction and forms a 90° angle with the drive shaft 7, and this bevel gear 6 meshes with the aforementioned bevel gear 5.

Further, a pinion 1 is attached to the other end of the shaft 8,
The pinions 1 and 2 are engaged with racks 3 and 4 provided on rails 13 and 14 respectively attached to a roller support 12 on the main body side.

When the drive shaft 7 rotates, the pinion 2
When the shaft 8 rotates, the pinion 1 attached to the shaft 8 also rotates, and as a result, the pinions 1 and 2 roll on the racks 3 and 4, so that the arm 15 can be side-shifted left and right.

It also occurs when the load 30 is supported with the fork 21 facing sideways. Rotating shaft 22 and cargo 3
The drive shaft 7
and the torsional stress of the shaft 8.

Furthermore, the drive shaft 7 can also be used to prevent vibrations in the vertical shaft rotation 7 that occur when starting and stopping a shift, starting and stopping rotation.
This can be prevented by the torsional stress of the shaft 8.

The present invention has been described in detail above, and the arm 15
A pinion 2 is provided at one end of a drive shaft 7 for left-right movement, which is perpendicular to the arm 15, and a shaft 8 orthogonal to the drive shaft 7 is rotatably provided on the arm 15, and the drive shafts 7 and 8 are connected by a bevel gear mechanism. A pinion 1 is provided at the end of the shaft 7, and each pinion 1, 2
Since racks 3 and 4 are provided on the main body side to engage with the
This occurs when a load is supported with the fork facing sideways. The torsional stress of the drive shaft 7 and shaft 8 can withstand the moment around the horizontal axis, where the moment arm is the distance between the rotation axis of the arm 15 and the point of load application A of the load. The torsional stress of the drive shaft 7 and shaft 8 can also prevent the vibration of the vertical shaft rotation 7 that occurs when starting and stopping the rotation.

This improves stability.

Furthermore, there are two racks 3 and 4 provided on the main body side, and there are also two pinions 1 and 2 that mesh with these racks 3 and 4, and the drive shaft 7 and shaft 8 are connected via a bevel gear mechanism. Because of this, the structure is simple and the manufacturing cost is low.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a view taken from the direction of FIG. 1. 1 and 2 are pinions, 3 and 4 are racks, 5 and 6 are bevel gears, 7 is a drive shaft, 8 is a shaft, 9 is a motor, 1
0 is a speed reducer, 11 is a gear, 12 is a roller support, 13 and 14 are rails, and 15 is an arm.

Claims (1)

[Scope of utility model registration request] A pinion 2 is provided at one end of a drive shaft 7 for left and right movement provided perpendicularly to the arm 15, and a shaft 8 orthogonal to the drive shaft 7 is rotatably provided to the arm 15, and the drive shafts 7 and 8 are connected to a bevel gear. A cargo handling device for a forklift, which is connected via a mechanism and is characterized in that a pinion 1 is provided at the end of a shaft 7, and racks 3 and 4 that mesh with the respective pinions 1 and 2 are provided on the main body side.