JPH0977493A - Ram unit of fork-lift truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the extent of material handling properties by installing a rotary bracket in front of a shift bracket, and attaching a ram to a position decentered from the turning center, at the front part of this rotary bracket, in a vehicle which carries a bar-form ram installed in front of car body after inserting it into the core part of a cargo of roll form or the like. SOLUTION: A lift bracket 2 is installed free of vertical motion along a symmetrical pair of masts 1 erected in front of a car body, and two upper and lower finger bars 5 heading for left and right are installed in front of this lift bracket 2. In addition, a round ringlike fixed bracket 9 is attached tight to the front part of a shift bracket 6 installed free of shifting right and left in a front part of the finger bar 5, and a rotary bracket 10 is installed free of rotation along the inner circumference of this fixed bracket 9. Then an arm 15 extending in the diametral direction is installed in front of a turntable 12 attached tight to a front part of this rotary bracket 10 free of detachment, and then one bar-form ram 18 heading for almost horizontally forward is attached to one end of this arm 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention According to the present invention, a rod-shaped ram is mounted on the front part of a vehicle body, and the ram is inserted into a hollow core of a roll-shaped or tubular load to carry it. A ram device for a forklift truck.

[0002]

2. Description of the Related Art Conventionally, as a ram device for a forklift truck, as shown in FIG. 1, a pair of left and right masts 1 are erected on a front portion of a vehicle body, and a lift bracket which can be vertically moved along the mast 1. 2 and the lift bracket 2
The finger bar 5 is provided in the front part of the, and the base bracket 20 is attached to the center of the finger bar 5 on the left and right sides, and the rod-shaped ram 18 is attached to the base bracket 20 so as to be oriented substantially horizontally forward. The ram 18 is inserted into a hollow core portion of a roll-shaped or tubular load, and the load is lifted and transported here. The rolled or tubular baggage was a wound carpet or paper, a coiled thin iron plate or strip, or a pipe.

[0003]

In such a conventional ram device, for example, when carrying a load loaded in a container, the load on the front side of the container is easily lifted from the outside and carried. As for the baggage behind the container, a forklift truck enters the container and lifts the baggage for transportation. However, at this time, the luggage in the lower left and right corners of the container could not be inserted because the ram of the ram device could not be inserted into the core of the luggage because the wall surface of the container and the vehicle body interfered with each other. . Therefore,
Conventionally, an operator manually carries or shifts the luggage by another machine. Therefore, there is a problem that a work such as manual work or operation of another machine is required, and the work is very difficult and the workability is very poor. An object of the present invention is to solve this problem.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a pair of left and right masts are erected on a front portion of a vehicle body, and a lift bracket that is vertically movable along the mast is provided. Is provided with a finger bar directed toward, and a shift bracket that is movable left and right along the finger bar is provided, and a rotatable bracket that is rotatable is provided at a front portion of the shift bracket, and a rotation center at a front portion of the rotatable bracket is provided. It is a ram device for a forklift truck in which a ram is mounted at an eccentric position so as to extend substantially horizontally forward.

[0005]

According to the present invention, the ram can be moved to the desired position by laterally or rotationally moving on the front surface of the vehicle body, and the luggage located at any position can be easily lifted and carried by the ram device.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a ram device for a forklift truck according to the present invention will be described. As shown in FIGS. 2, 3 and 4, a pair of left and right masts 1 are erected on the front part of the vehicle body, and a lift bracket 2 is provided which is vertically movable along the masts 1. The lift bracket 2 is moved up and down by the lift cylinder 3 on the mast 1 via the roller 4. Then, finger bars 5 directed to the left and right are provided at the front part of the lift bracket 2 respectively, and a shift bracket 6 that is movable left and right along the finger bar 5 is provided at the front part of the finger bar 5. In addition, a mounting bracket 7 is installed on the upper and lower finger bars 5,
By fixing the shift cylinder 8 directed to the left and right to the mounting bracket 7 and fixing the rod tip of the shift cylinder 8 to the shift bracket 6, the shift bracket 6 is moved laterally along the finger bar 5 by the shift cylinder 8. To move.

A circular ring-shaped fixed bracket 9 is fixed to the front portion of the shift bracket 6, and the rotary bracket 1 is rotatable along the inner circumference of the fixed bracket 9.
0 is set. The rotary bracket 10 has a round ring shape, and inner teeth 10a are formed on the inner circumference of the rotary bracket 10, and the inner teeth 10a mesh with the output teeth 11a of the rotary motor 11 fixed to the fixed bracket 9 to rotate the rotary bracket 10. The bracket 10 is rotated by the rotary motor 11 along the inner circumference of the fixed bracket 9.

The rotary plate 12 is fixed to the front part of the rotary bracket 10, the first mounting bracket 13 is fixed to the upper side of the front part of the rotary plate 12, and the second mounting bracket 14 is fixed to the lower side. , The first mounting bracket 13
A vertically long arm 15 is detachably mounted over the front part of the second mounting bracket 14. The arm 15
Is positioned by the key 16 between the first mounting bracket 13 and the second mounting bracket 14 and engages with the first mounting bracket 13 via the hook 17, and is fixed to the second mounting bracket 14 with a bolt. . Then, a bar-shaped ram 18 that extends substantially horizontally forward is provided at one end of the arm 15.
And the ram 18 is mounted on the rotating bracket 10
The position B is eccentric from the rotation center A of the.

As for the position B of the ram 18 which is eccentric from the rotation center A of the rotation bracket 10, as shown in FIG. 5, the dimension between the rotation center A and the eccentric position B, that is, the eccentricity H, is lifted. The height dimension T from the ground to the center of rotation A when the bracket 2 is at the lowest point is made larger, and the intersection of the rotation trajectory of the ram 18 and the ground when the lift bracket 2 is at the lowest point is set to point C. , D, the eccentric dimension H of the ram 18 is set so that the distance W between the points C and D is larger than the lateral width of the vehicle body.

Regarding the amount of lateral movement of the shift bracket 6, the most lateral point E of the ram 18 (the intersection of the rotational trajectory of the ram 18 and the horizontal line of the rotational center A) and the point C or point D described above. It is set to be larger than the horizontal interval dimension L.

Thus, in the ram 18, the shift cylinder 8 moves the shift bracket 6 left and right along the finger bar 5, and the ram 18 mounted on the front portion of the shift bracket 6 is the same as the shift bracket 6. The rotary motor 11 rotates the rotary bracket 10 along the inner circumference of the fixed bracket 9, and the ram 18 mounted on the front part of the rotary bracket 10 also moves in the same manner as the rotary bracket 10. It comes to rotate and move.

Therefore, when carrying a load loaded in a container, the forklift truck body is put in the container for work. At this time, the ram 18 moves left or right or rotates in front of the body. The ram 18 can be moved to a desired position, and the ram 18 can be inserted into the core of the package even if the package is located at the lower left and right corners of the container without the wall surface of the container interfering with the vehicle body. This makes it possible to easily lift and carry a luggage located at any place by the ram device, eliminating the work of a conventional worker such as manually shifting the luggage by another machine or carrying it. The work load is reduced and the workability is improved.

[0013]

According to the present invention, the ram can be moved to the desired position by moving the ram left and right or rotationally on the front surface of the vehicle body, so that the luggage located at any place can be easily lifted and carried by the ram device. It is possible to reduce the burden on the worker and improve the workability by eliminating the conventional work such as the worker manually shifting the luggage or moving it with another machine. You can

[Brief description of drawings]

FIG. 1 is a perspective view of a conventional ram device for a forklift truck.

FIG. 2 is a front view of a ram device of a forklift truck according to the present invention.

FIG. 3 is a front sectional view of a ram device for a forklift truck according to the present invention.

FIG. 4 is a side view of a ram device of a forklift truck according to the present invention.

FIG. 5 is a schematic explanatory view of a ram device of a forklift truck according to the present invention.

[Explanation of symbols]

1 ... Mast, 2 ... Lift bracket, 3 ... Lift cylinder, 4 ... Roller, 5 ... Finger bar, 6 ... Shift bracket, 7 ... Mounting bracket, 8 ... Shift cylinder, 9 ...
Fixed bracket, 10 ... Rotating bracket, 10a ... Internal teeth, 11 ... Rotating motor, 11a ... Output teeth, 12 ... Rotating plate, 13 ... First mounting bracket, 14 ... Second mounting bracket, 15 ... Arm, 16 ... Key, 17 ... Hook, 18
… Ram, 20… base bracket.

Claims (1)

[Claims] 1. A pair of left and right masts 1 are erected on a front portion of a vehicle body, a lift bracket 2 is provided which is vertically movable along the mast 1, and a finger bar directed to the left and right is provided on a front portion of the lift bracket 2. 5 is provided, a shift bracket 6 that is movable left and right along the finger bar 5 is provided, a rotatable bracket 10 that is rotatable is provided at the front portion of the shift bracket 6, and rotation at the front portion of the rotatable bracket 10 is provided. A ram 18 that is eccentric from the center and heads substantially horizontally forward
A ram device for a forklift truck that is equipped with.