JPH0569088U - Forklift truck side shift device - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the workability by improving the visibility in the front and improve the work efficiency. [Structure] Of an upper plate 7a and a lower plate 7b provided laterally below a fixed frame 7, the upper plate 7a is divided into two and provided only on the front side of a vertical frame 7c, and these upper plate 7a and lower plate The shift cylinder 11 has a substantially concave shift frame 8 that can be laterally shifted by a shift cylinder 11, and a fork 12 is attached to the shift frame 8 to improve the visibility in the front. And work efficiency can be improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a side shift device for a forklift truck with improved front visibility.

[0002]

[Prior Art]

 Some conventional forklift trucks are equipped with a side shift device that allows the forks to be shifted laterally. As shown in FIGS. 1 and 2, in the conventional side shift device, a shift frame b is movably supported laterally on the front side of a fixed frame a, 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 fork c can be laterally shifted via the shift frame b by expanding and contracting the shift cylinder d. ing.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned 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 and the tip of the fork c is not clearly visible. There was a problem that it took a long time to insert it into the etc. and the work efficiency was poor. The present invention has been made for the purpose of improving the above-mentioned problems, and an object of the present invention is to provide a side shift device for a forklift truck with improved visibility in the front direction to improve the efficiency of cargo handling work.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has an upper plate and a lower plate laterally provided in the lower part of a fixed frame, the upper plate is divided into two parts, and is provided only on the front side of the vertical frame. The plate and the lower plate are each equipped with a substantially concave shift frame that can be laterally shifted by a shift cylinder, and a fork is attached to the shift frame.

[0005]

[Action]

 With the above structure, the front of the fork can be seen better from the driver's seat and the visibility in the front is improved, so that cargo handling work can be performed efficiently.

[0006]

【Example】

 An example in which the present invention is applied to a forklift truck adopting a panda graph type reach mechanism will be described in detail with reference to the drawings shown in FIGS. 4 and 5. In FIG. 4, reference numeral 1 is a mast of a forklift truck, and an ascending / descending frame 3 is supported by a support 2 so as to be vertically movable. One end side of a pair of links 5 having an intermediate portion pivotally attached by a pin 4 is supported on the elevating frame 3, and one end of each link 5 is rotated by a reach cylinder 6 so that the other end of each link 5 is supported. The fixed frame 7 attached to the side can be reached in the front-rear 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 7b are provided in the horizontal direction in the lower part of the front face at intervals in the vertical direction. In order to improve the visibility from the driver's seat (not shown), the upper plate 7a is divided into two parts, left and right, and is provided only on the front side of the vertical frame 7c of the fixed frame 7. A shift frame 8 is attached to 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 the shift frame 8 is engaged with the upper plate 7 a of the fixed frame 7 from above and the lower part is fixed by the hook 10. The shift cylinder 11 is engaged with the lower plate 7b of the frame 7 from below, and both ends of the shift cylinder 11 are pivotally mounted between the lower portion of the shift frame 8 and the lower plate 7b of the fixed frame 7, respectively. By expanding and contracting, the shift frame 8 can be laterally shifted. Note that reference numeral 12 in the drawing denotes a fork attached to the shift frame 8.

Next, the operation of the side shift device configured as described above will be described. When the tip of the fork 12 is inserted into a pallet (not shown) for cargo handling work, the forklift truck is placed in front of the intended pallet. The stationary frame 7 is stopped by moving the stationary frame 7 forward, and the tip of the fork 12 mounted on the shift frame 8 is inserted into the pallet. The center of the upper plate 7a of the fixed frame 7 and the upper part of the shift frame 8 are fixed. Due to the chipped structure, 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, and when the tip of the fork 12 and the pallet are misaligned, the shift cylinder 11 shifts the shift frame 8 laterally. The position of the fork 12 and the pallet can be easily adjusted.

Further, by setting the length of the upper plate 7a of the fixed frame 7 in advance so as to project the distance L to both sides of the shift frame 8, the fork 12 can be shifted laterally by 2L. become able to. In the above embodiment, the side shift device is attached to the panda graph type reach mechanism. However, the side shift device may be attached to a finger board which is vertically movable with respect to the mast 1.

[0011]

[Effect of the device]

 As described in detail above, this device has a structure in which 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 tip of the fork can be seen better from the driver's seat, and the visibility in the front is greatly improved. Can be improved. As a result, cargo handling work can be performed safely and efficiently, and workability is improved, so that driver fatigue can be reduced.

[Brief description of 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)

[Scope of utility model registration request] 1. An upper plate 7a and a lower plate 7b provided laterally in the lower portion of a fixed frame 7 are divided into two, and the upper plate 7a is provided only on the front side of a vertical frame 7c.
A side shift device for a forklift truck in which a substantially concave shift frame 8 that is laterally shiftable by a shift cylinder 11 is attached to the lower plate 7b, and a fork 12 is attached to the shift frame 8.