JP2556940Y2 - Side shift device of forklift truck - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side shift device of a forklift truck with improved visibility in the front.

[0002]

2. Description of the Related Art Conventionally, some forklift trucks are provided with a side shift device capable of shifting a fork in a lateral direction. As shown in FIGS. 1 and 2, a shift frame b is supported on the front side of a fixed frame a so as to be movable in the lateral direction, and a fork c is attached to the shift frame b. A shift cylinder d is provided between the fixed frame a and the shift frame b, and the shift cylinder d is expanded and contracted so that the fork c can be shifted laterally via the shift frame b. .

[0003]

However, in the above-described conventional side shift device, as shown in FIG. 3, the field of view e from the driver's seat is blocked by the upper plate b 'of the shift frame b so that the tip of the fork c can be clearly seen. Therefore, there is a problem that the operation of inserting the tip of the fork c into a pallet or the like takes time and the work efficiency is poor. This invention was made for the purpose of remedying the above-mentioned problems, and provided a side shift device for a forklift truck with improved visibility in the front,
The aim is to improve the efficiency of cargo handling work.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and has an intermediate portion in which one end of a pair of links pivotally connected by pins is supported on a lifting frame, and a reach cylinder is provided. By rotating one of the links, the fixed frame attached to the other end of each link can reach in the front-rear direction, and the upper plate and the lower plate provided in the horizontal direction below the fixed frame. The upper plate is divided into two parts and provided only on the front side of the vertical frame, and the shift frame, which is substantially concave and can be shifted in the horizontal direction by the shift cylinder arranged on the lower plate, is connected to the upper plate by the upper hook and the lower hook, respectively. A fork is attached to the shift frame while being attached to the lower plate.

[0005]

With the above structure, the center of the upper plate of the fixed frame and the center of the upper part of the shift frame are cut off, so that the visibility of the front is improved, for example, the tip of the fork can be seen better from the driver's seat, and the efficiency of cargo handling is improved. Well done.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a forklift truck employing a pandagraph-type reach mechanism will be described in detail with reference to the drawings shown in FIGS. In FIG. 4, reference numeral 1 denotes a mast of a forklift truck,
The lifting frame 3 is supported so as to be movable up and down. One end of a pair of links 5 whose intermediate portions are pivotally connected to the lifting frame 3 by a pin 4 is supported. When one of the links 5 is rotated by a reach cylinder 6, the other end of each link 5 is turned. Fixed frame 7 attached to
Can be reached in the front-back direction.

The fixed frame 7 is formed in a frame shape as shown in FIG. 5, and an upper plate 7a and a lower plate 7
b are provided in the horizontal direction at intervals in the vertical direction. In addition, the upper plate 7a is divided into two parts on the left and right in order to improve visibility from a driver's seat (not shown), and is provided only on the front side of the vertical frame 7c of the fixed frame 7.
A shift frame 8 is mounted on the front surfaces of the upper plate 7a and the lower plate 7b.

The shift frame 8 is formed in a substantially concave shape as shown in FIG. 5, the upper end of which is engaged with the upper plate 7a of the fixed frame 7 by a hook 9 from above, and the lower part of which is fixed by a hook 10 to the fixed frame. 7 is engaged with the lower plate 7b from below, and both ends of the shift cylinder 11 are pivotally connected between the lower portion of the shift frame 8 and the lower plate 7b of the fixed frame 7, respectively. By doing so, the shift frame 8 can be shifted in the horizontal direction. In the drawing, reference numeral 12 denotes a fork attached to the shift frame 8.

Next, the operation of the side shift device constructed as described above will be described. When the tip of the fork 12 is inserted into a pallet (not shown) in a cargo handling operation, the forklift truck is placed in front of the pallet for the purpose. To stop,
The fixed frame 7 is advanced by the reach cylinder 6,
The tip of the fork 12 attached to the shift frame 8 may be inserted into the pallet, and the upper plate 7a of the fixed frame 7 may be inserted.
Since the center and the upper part of the shift frame 8 are chipped, the tip of the fork 12 can be seen better from the driver's seat. This allows the tip of the fork 12 to be accurately inserted into the pallet,
When there is a shift between the tip of the pallet and the position of the pallet, the shift frame 8 is shifted laterally by the shift cylinder 11 so that the fork 12 and the pallet can be easily aligned.

The length of the upper plate 7a of the fixed frame 7 is
By setting in advance such that the distance L protrudes on both sides of the shift frame 8, the fork 12 can be shifted by 2L in the lateral direction. In the above-described embodiment, the case where the side shift device is mounted on the pandagraph-type reach mechanism has been described. However, the side shift device may be mounted on a finger board provided to be vertically movable with respect to the mast 1.

[0011]

As described in detail above, the present invention has a structure in which the center of the upper plate of the fixed frame and the center of the upper portion of the shift frame are chipped, so that the view is not obstructed by the upper plate. The visibility of the front can be greatly improved, for example, the tip of the fork can be seen better from the driver's seat. Thereby, the cargo handling work can be performed safely and efficiently, and the workability is improved, so that the fatigue of the driver can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing a conventional side shift device.

FIG. 2 is a side view showing a conventional side shift device.

FIG. 3 is an explanatory diagram showing the visibility of a conventional side shift device.

FIG. 4 is a side view of a side shift device according to an embodiment of the present invention.

FIG. 5 is a front view of a side shift device according to an embodiment of the present invention.

[Explanation of symbols]

 7 Fixed frame 7a Upper plate 7b Lower plate 7c Vertical frame 8 Shift frame 11 Shift cylinder 12 Fork

Claims (1)

(57) [Scope of request for utility model registration] 1. An intermediate part pivotally connected by a pin (4).
One end of the pair of links (5) is supported on the lifting frame (3)
Then, one of the links (5) is connected by the reach cylinder (6).
Attached to the other end of each link (5) by rotating
The fixed frame (7) can reach in the front-back direction
The upper plate (7a) of the upper plate (7a) and the lower plate (7b) provided laterally below the fixed frame (7 )
Is divided into two and provided only on the front side of the vertical frame (7c) ,
A shift frame (8) having a substantially concave shape, which can be shifted laterally by a shift cylinder (11) disposed on a lower plate (7b) , is attached to an upper hook (9) and a lower hook (10).
The fork (12) is attached to the shift frame (8) together with the upper plate (7a) and the lower plate (7b ).
Side shift device for forklift trucks.