KR20010000725U - side shift device of forklift - Google Patents

Abstract

By changing the structure of the main body carriage to which the side shift carriage is mounted, the side shift carriage is brought into close contact with the main body to increase the cargo lifting capacity of the equipment.

The present invention provides a side shift apparatus for a forklift comprising a main carriage, a side shift carriage movably mounted in a horizontal direction with respect to the main carriage, and a first shaft for fixing the fork to the side shift carriage. A separation preventing means for preventing the side shift carriage from being separated from the main carriage when the side shift carriage is transferred, and a position higher than a center of the first axis and a center of the first shaft is located forward of the center of the first axis One end of the second shaft is fixed to the bracket formed on the side shift carriage and the bracket formed on the side carriage carriage as a lower position than the center of the center of the first shaft and the bracket formed on the main carriage and the bracket formed on the main carriage, Carry the main body at the other end of the same height as the bracket Hydraulic cylinder is fixed to the bracket formed on the paper.

Therefore, after changing the structure of the main body carriage, the side shift carriage is installed to reduce the cost by reducing the number of parts, reduce the weight due to the simplified structure of the main body carriage, and reduce the loss distance of the rod. Closer side has the advantage that can greatly increase the cargo lifting capacity of the equipment.

Description

Side shift device of forklift

The present invention relates to a side shift device for a forklift, and more particularly, to increase the cargo lifting capacity of the equipment by bringing the side shift carriage closer to the main body side by the structural change of the main body carriage on which the side shift carriage is mounted. It relates to a side shift device for a forklift.

In general, a main body carriage is mounted in front of the forklift, and side shift carriages are mounted to the main body carriage so as to be movable left and right within a predetermined stroke range due to the cylinder drive. The side shift carriage is shifted while the forklift lifts the cargo and is conveniently used when unloading the cargo to a desired predetermined position.

In other words, when the forklift lifts cargo using its fork and then moves to a predetermined place to unload at a predetermined position, the forklift moves to the left or right. As a result, the driver repeatedly moves the forklift to a predetermined unloading position by repeatedly operating a driving operation such as backward, forward, right turn, and left turn. As a result, the operator repeatedly feels fatigue due to repetitive operation during cargo unloading, and increases working time and fuel consumption.

At this time, the side shift carriage mounted on the main body carriage so as to be movable in the left and right directions solves the above problems.

As shown in Figs. 1 and 2, the side shift apparatus for a forklift of the prior art includes a main body carriage 29, on which the head side of the hydraulic cylinder 3 is mounted by a bracket 2, and a hydraulic cylinder 3; Of the side shift carriage 1 and the side in contact with the main body carriage 29 are mounted by the bracket 21 and moved to the left and right directions with respect to the main body carriage 29 by the driving of the hydraulic cylinder 3. A plate 18 and a plate 18 having a friction lubricating grease groove groove formed thereon are seated so as to protrude in a seating groove C formed at the rear left and right predetermined positions of the shift carriage 1 and the rear of the plate 18. And a stopper 19 formed to prevent the side shift carriage 1 from being separated from the main carriage 29.

It is axially coupled to the support members 31 and 32 formed at the rear left and right sides of the above-described side shift carriage 1 to prevent the end portions from being separated by the stopper plate SP, and the side shift carriage with respect to the main carriage 29. A shaft (S) for holding (1) and a shaft (22) is axially coupled to the through hole (H) formed in the side shift carriage (1) and on which the fork (F) is mounted.

Reference numeral 6 denotes a bushing for supporting the shaft 22 coupled to the supports 31 and 32, 9 and 10 for a hydraulic hose for supplying and discharging hydraulic oil to the hydraulic cylinder 3, and 20 for both ends of the shaft 22. It is a plate for supporting the side shift carriage (1).

In the conventional forklift side shift device as described above, due to an increase in the number of parts for moving the side shift carriage 1 to the main carriage 29 due to the driving of the hydraulic cylinder 3 according to the working conditions. As a result, the cost is increased, the weight is increased, and the lifting capacity of the equipment is lowered due to the loss distance (B) of the load.

Accordingly, it is an object of the present invention to provide a side shift device for a forklift that can reduce the cost by mounting the side shift carriage after changing the structure of the main body to reduce the number of parts.

Another object of the present invention is to reduce the weight by simplifying the structure of the main body carriage, the side shift for forklift to increase the cargo lifting capacity of the equipment by bringing the side shift carriage closer to the main body side by reducing the loss distance of the rod. To provide a device.

1 is an exploded perspective view of a main body carriage and a side shift carriage assembled in a side shift apparatus for a forklift according to the prior art;

2 is a side view of a side shift device of the prior art,

3 is an exploded perspective view of the main body carriage and the side shift carriage assembled in the side shift apparatus for a forklift according to the present invention;

Figure 4 is a front view of the side shift device for forklift according to the present invention,

5 is a side view of FIG. 4.

* Explanation of symbols used in the main part of the drawing *

51,52,58,59; frame

53,64; Connector

54,55,65,66,68,69; Bracket

56; Body carriage

57; Side shift carriage

60; fork

61; 1st axis

62; stopper

63; Locker

67; 2nd axis

70; Hydraulic cylinder

73; Friction Plate

74; Home

The object of the present invention described above is a side shift for forklift comprising a main carriage, a side shift carriage mounted in a lateral direction relative to the main carriage, and a first shaft for fixing the fork to the side shift carriage. An apparatus, comprising: an escape preventing means for preventing the side shift carriage from being separated from the main carriage when the side shift carriage is transferred; a position higher than a center of the first axis and a center of itself are higher than a center of the first axis One end of the bracket formed on the side shift carriage at a position lower than the center of the first shaft and the second shaft for fixing the bracket formed on the side shift carriage and the bracket formed on the main carriage in the same line so as to be located forward; Is fixed, and the other end is the same height as the bracket It is achieved by providing a side shift device for a forklift, characterized in that it comprises a hydraulic cylinder fixed to the bracket formed on the main carriage.

According to a preferred embodiment, the release preventing means is formed on the side shift carriage so that the stopper is formed at a predetermined position behind the main carriage and the stopper is separated from the main carriage to the side shift carriage It is provided with a rocker to prevent the.

Hereinafter, preferred embodiments of the present invention will be described in accordance with the accompanying drawings, which are intended to be described in detail to be easily carried out by those skilled in the art in order to facilitate the understanding of the present disclosure. Therefore, the technical scope of the present application is not limited.

As shown in FIGS. 3 and 5, the lower side of the opposed frames 51 and 52 is integrally supported by the connector 53 and the main body carriage 56 is formed such that the brackets 54 and 55 face the upper side. And the side shift carriage 57 which is movably mounted in the left and right directions with respect to the main body carriage 56, and both ends thereof are fixed to the frames 58 and 59 of the side shift carriage 57 and are fork 60. Is applied to the side shift apparatus for a forklift having a first shaft 61 to which is mounted.

The stopper 62 is integrally formed at the upper end of the connector 53 of the main body carriage 56, and the stopper 62 of the main body carriage 56 when the side shift carriage 57 is transferred to the main body carriage 56. The hook-shaped rocker 63 which prevents the side shift carriage 57 from being separated from is formed integrally on the upper end of the connector 64 of the side shift carriage 57.

As the fork 60 described above, the side shift carriage 57 is closely attached to the equipment side when the cargo is lifted to the brackets 65 and 66 and the main body 56 formed on the side shift carriage 57 to increase the lifting capacity of the equipment. The center of the second shaft 67 which holds the formed brackets 54 and 55 in the same line is positioned above the center of the first axis 61 and forward than the center of the first axis 61. Is mounted.

One side (rod side) of the hydraulic cylinder 70 which transfers the side shift carriage 57 to the left-right direction with respect to the above-mentioned main body carriage 56 is a position lower than the center of the 1st axis 61, and the side shift carriage 57 The other end (head side) of the hydraulic cylinder 70 is the same height as the bracket 68 of the side shift carriage 57 of the main body carriage 56 It is fixed to the bracket 69 formed in the frame 51.

Reference numeral 72 is a hydraulic hose for supplying and discharging hydraulic oil to the hydraulic cylinder 70, 73 is a seating groove formed in the connector 53 of the body carriage 56 in close contact with the connector 64 of the side shift carriage 57 An anti-friction plate seated so as to protrude a portion of its thickness to 74 and a grease glove groove is formed, 75 is a fixing pin that prevents the fork 60 from being axially coupled to the first shaft 61.

Hereinafter, a method of assembling the side shift device for a forklift according to the present invention will be described.

As shown in FIGS. 3 to 5, the bushings 76 are inserted into the through holes 54a and 55a formed in the brackets 54 and 55 of the body carriage 56 described above, respectively, and are formed in the connector 53. The friction preventing plate 73 is coupled to the seating groove 74 so that a part of thickness A thereof protrudes, and the nipple 77 is mounted to the brackets 54 and 55 so as to lubricate the bushing 76 with grease. .

The bearing 78 is mounted on the bracket 68 formed above the frame 58 of the side shift carriage 57, and both ends of the first shaft 61 on which the fork 60 is mounted are mounted on the frame 58. It is inserted into the formed through hole 58A and fixed as the plate 79.

3 to 5, the above-described rocker 63 formed on the connector 64 of the side shift carriage 57 is coupled to the stopper 62 formed on the connector 53 of the main carriage 56. The centers of the brackets 54 and 55 formed on the body carriage 56 are aligned with the brackets 65 and 66 formed on the side shift carriage 57, and then coupled as the second shaft 67. Both ends of the end of the side shift carriage 57 is fixed by the plate 80 on the outer surface of the bracket (65, 66).

As shown in FIGS. 3 and 4, the rod side of the hydraulic cylinder 70 is fixed to the bracket 68 formed on the frame 58 of the side shift carriage 57 described above by the fixing pin 81. The head side of the hydraulic cylinder 70 has the same height as the bracket 68 and is fixed to the bracket 69 formed on the frame 51 of the main carriage 56 by using the fixing pin 82.

Referring to the operation of the forklift side shift device of the present invention formed as described above are as follows.

As shown in FIG. 4, when the hydraulic oil discharged from the hydraulic pump of the equipment is supplied to the hydraulic cylinder 70 through the above-described hydraulic hose 72, the rod of the hydraulic cylinder 70 is leftward in the drawing. The side shift carriage 57 is moved to the left in the drawing (by "C" in the drawing) with respect to the main body carriage 56 when it is extended by the direction. On the other hand, when the rod of the hydraulic cylinder 70 extends in the right direction in the drawing, the side shift carriage 57 moves in the drawing and right direction with respect to the main carriage 56 (by "C '" in the drawing). do.

At this time, as shown in FIG. 5, the locker formed on the connector 64 of the side shift carriage 57 when the side shift carriage 57 is moved relative to the main carriage 56 by the above-described driving of the hydraulic cylinder 70. Since the 63 is slid along the stopper 62 formed in the connector 53 of the main carriage 56, the side shift carriage 57 is prevented from being separated from the main carriage 56.

On the other hand, the side shift device of the present invention, as shown in Figure 5, even when the protrusion amount (A) of the anti-friction plate 73 in the loss distance (B ') of the rod, shown in Figure 2 Compared with the loss distance B of the rod of the prior art, it is possible to reduce by "E". Because of this, the side shift carriage 57 is in close contact with the equipment side when lifting the cargo as the fork 60 to increase the lifting capacity of the equipment.

As described above, according to a preferred embodiment, after changing the structure of the main body carriage, the side shift carriage is mounted to reduce the cost by reducing the number of parts, reduce the weight due to the simplified structure of the main body carriage and reduce the loss distance of the rod. As a result, the side shift carriage is brought into close contact with the main body side, thereby greatly increasing the cargo lifting capacity of the equipment.

Claims (2)

A side shift device for a forklift comprising: a main carriage, a side shift carriage movably mounted in a horizontal direction relative to the main carriage, and a first shaft for fixing the fork to the side shift carriage: Departure preventing means for preventing the side shift carriage from being separated from the main body carriage during the transfer of the side shift carriage; A second shaft for fixing the bracket formed on the side shift carriage and the bracket formed on the main carriage in the same line such that the position higher than the center of the first shaft and the center of the first shaft are forward than the center of the first shaft; And And a hydraulic cylinder fixed to a bracket formed at the main carriage at the same height as the bracket, the other end of which is fixed to a bracket formed at the side shift carriage at a position lower than the center of the first axis. Side shifter for forklift. According to claim 1, The separation preventing means; A stopper formed at a predetermined position behind the main carriage; And a rocker formed on the side shift carriage to slide along the stopper to prevent the side shift carriage from being separated from the main carriage.