JPH01187199A - Pusher device equipped with vertical shifting mechanism - Google Patents

Abstract

PURPOSE:To efficiently carry out the transshipping work by erecting the second mast onto the first lift bracket and installing the second bracket which can be shifted in the vertical direction onto the second mast and installing a pusher onto the front surface part of the second lift bracket and adjusting the position of the pusher for a plurality of loads in the vertical direction. CONSTITUTION:The second mast 6 is erected on the first lift bracket 33 installed in shiftable ways in the vertical direction onto the first mast 3, and the second lift bracket 63 is installed in shiftable ways in the vertical direction onto the second mast 6. A pusher device 7 which can be extended and retracted in the longitudinal direction is installed onto the front surface part of the second lift bracket 63. Therefore, only the pusher 7 can be shifted vertically, separated from a fork 36 installed onto the first bracket 33. Therefore, even if a plurality of loads on the fork 35 are piled vertically, the load can be pushed out successively from the upper part, and the load transshipping work can be carried out efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a butcher device with a vertical movement mechanism that is attached to the front part of a forklift truck (hereinafter simply referred to as a forklift) and has excellent work efficiency.

[Prior art]

2. Description of the Related Art Conventionally, nine pusher devices for pushing out loads for a forklift have been proposed, such as those shown in FIGS. 5 and 6, for example.

That is, the pusher device consists of a pair of masts 3 erected on the front side of the vehicle body of the forklift 2, and a lift bracket 33 attached to the masts 3.

The mast 3 usually consists of a pair of outer masts 30 and an inner mast 31 provided within the outer masts.

The inner mast 31 can be moved up and down (
A lift bracket 33 that moves (up and down) is provided.

The inner mast 31 is connected to a lift cylinder 32 for moving it vertically.

Further, the lift bracket 33 is raised and lowered via a chain (not shown) by the raising and lowering operation of the lift cylinder 32.

A fork 35 is attached to the lift bracket 33. Further, a butcher device 7 is attached to the front surface of the fork 35. As shown in FIG. 5, the pusher device 7 has a pantograph 72 that extends and contracts in both front and rear directions. The pantograph 7
2 is actuated by a hydraulic cylinder 71. Note that the reference numeral 73 is a bat for extrusion, and the reference numeral 21 is a tilt cylinder.

Therefore, when transporting cargo using an IF forklift, the fork 35 is inserted into a pallet stand 99 on which the cargo 91 is placed, and the cargo is transported.

When the transported cargo 91 is placed on the conveyor 5 etc. by the pusher device 7, the pantograph 72
is stretched, and only the baggage 91 is pushed onto the conveyor 5 by the pad 73.

[Problems to be solved]

However, although the conventional butcher device 7 is good when there is only one piece of baggage 91, it poses a problem when a plurality of pieces of baggage 91, 92, 93 are stacked vertically on the fork 5. That is, to avoid straining the back, the items 91 to 93 are manually lifted one by one near the conveyor 5.
There is also a method of transporting the items 91 one by one using a forklift and moving them onto the conveyor 5 using the pusher device 7, but this method is extremely inefficient.

The present invention has been made in view of the problems of the prior art, and it is an object of the present invention to provide a push-pull machine with a vertical movement mechanism that improves work efficiency.

[Means for solving problems]

The present invention provides a pusher device disposed on the front surface of a forklift truck having a pair of first masts, a first lift bracket for raising and lowering the first masts, and a fork attached to the first lift bracket. A second mast is erected on the bracket, and the second mast is provided with a lift cylinder and a second lift bracket that can be moved up and down by the lift cylinder, and the second lift bracket has a pusher that can be extended and contracted in the front and rear directions. A pusher device with a vertical movement mechanism is provided.

The most characteristic feature of the present invention is that a conventional lift bracket is provided with a second mast, a lift cylinder, and a second lift bracket, a pusher device is provided on the second lift bracket, and the pusher device is moved in the vertical direction. The reason lies in the fact that it is possible.

The first mast above is a conventional forklift.

That is, the forklift shown in FIGS. 5 and 6 is also erected. Further, the first lift bracket is attached to the first mast and moves up and down along with the fork. These are the same as before.

In addition, the second mast is the first to be installed in the nine inventions. Further, the second lift bracket is provided so as to be movable in the vertical direction along the second mast, and the butcher device is attached to the front surface of the second lift bracket.

Further, in the present invention, the pusher device moves up and down independently of the fork.

In addition, it is preferable that the #s pusher device is a telescopic mechanism having a cylinder and an arm, such as a pantograph, as a means for moving (expanding and contracting) back and forth.

Further, it is preferable that the pusher device performs one back and forth movement by a movement mechanism of an actuator using hydraulic pressure or pneumatic pressure (see FIG. 3).

[Action and effect]

The pusher device according to the present invention has a second mast erected in front of the conventional first mast, the second mast is equipped with a second lift bracket that is movable up and down, and a pusher device is installed on the front part of the second mast. ing.

Therefore, independently and separately from the fork provided on the first mast, only the pusher device is installed along the second mast.
Can move up and down. Therefore.

Even if multiple pieces of baggage are stacked vertically on the forks, the position of the pusher device can be adjusted according to the height, and the pieces can be moved parallel to the conveyor one by one from the top.

Therefore, according to the present invention, cargo transshipment work can be carried out efficiently. An excellent butcher device can be provided.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A button shear device with a vertical movement mechanism according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

The device of this example includes a pair of second masts 6 and a second mast provided thereon.
It consists of a lift bracket 63 and a pusher device 7.

The second mast 6 is fixed to the front part of a first lift bracket 33 of a conventional forklift.

Therefore, the 27th mast 6 has a U-shaped cross section.
1 and a second lift cylinder 62 erected adjacent thereto.
has. The second lift cylinder 62 has a rod 621 that can be extended and contracted in the vertical direction by hydraulic pressure. The rod 621 also has a chain wheel 66 at its upper end. Further, a lift bracket 63 that is movable up and down is provided on the front surface of the mast 61.
At its rear, a roller 64 is rotatably fitted into a recess in the mast 61. Further, the lower end of a chain 65 is connected to the hook 631 of the lift bracket 63, and the other end of the chain 65 is locked to a locking portion 651 near the center of the mast via the chain wheel 66.

Further, the bushing device 7 is attached to the front surface of the second lift bracket 63.

Further, the forklift 2 to which the pusher device 7 of this example is applied has the same structure as shown in the conventional device (a pair of first masts 3 erected on the front side of the vehicle body, and a first lift provided on the first masts 3). Consisting of a bracket 33; first mast 3
are outer mast 30, lift cylinder 32. Consists of 31 inner masts. The inner mast 31 has a roller 34
A first lift bracket 33 having a rear surface thereof is disposed, and the lift bracket 33 is suspended by a chain 36. Further, the first lift bracket 33 includes a fork 3.
Attach 5.

As shown in FIGS. 2 and 3, the pusher device 7 consists of a hydraulic cylinder 71 as an actuator, a pantograph 72, and a pad 73.
Rondo club again? 12 is attached to the pantograph 72. Frame 74 is secured to the second lift cylinder. Further, as shown in FIG. 2, the pad 73 has a certain width, and this width is appropriately selected depending on the width of the luggage 9 and the like. The material is made of hard rubber. Thereby, when the pad 73 comes into contact with the luggage 91, the luggage 91 will not be damaged due to the elasticity peculiar to rubber.

Further, the height of the pad 73 is smaller than the height of the normal baggage 91. Thereby, as shown in FIG. 4, it is easy to transfer only the topmost cargo 95 to the conveyor 5.

This device is configured as described above.

It has the following effects.

That is, when operating the forklift 2 equipped with the pusher device with the vertical movement mechanism of this example.

First, the pusher device 7 is positioned downward and in a contracted state as shown in FIG. 1, and the fork 35 is inserted into the pallet table 99 loaded with the loads 91 to 95. Then, the lift cylinder 62 provided on the second mast is raised, the second lift bracket 63 is raised by the chain 65, and the pusher device 7 is moved up. At this time, the position of the fork 35 remains unchanged, and the pad 73 of the pusher device 7 is positioned at the rear of the uppermost cargo 95.Then, the hydraulic cylinder 71 is activated. Then, the pantograph 72 is extended, and only the baggage 95 on the top tier is sent onto the conveyor 5 by the pad 73.

Next, in order to send out the second load 94 from the top, the fork 35 carrying the loads 94 to 91 is raised by the first lift bracket 33.

The pantograph 72 is reduced in size and lowered to a predetermined position. Then, the pad 73 at the tip of the pantograph 72 is positioned behind the baggage 94. Then, the baggage 94 is sent onto the conveyor 5 in the same manner as described above. Thereafter, the loads 93, 92, 91 are sent out in the same manner, and after the sending is finished, the lift cylinder 62 is lowered.

The pusher device 7 is lowered and the pantograph 72 is also reduced.

As described above, according to the pusher device with the vertical movement mechanism of this example, only the pusher device 7 can be moved up and down according to the height of the baggage 9. Therefore, a large number of loads 91 to 95 loaded on the fork 35 can be transferred to the conveyor 5 one or more pieces in order from the top, and the load reloading work can be carried out efficiently.

[Brief explanation of the drawing]

1 to 4 show a button shear device with a vertical movement mechanism according to an embodiment of the present invention, and FIG. 1 is a side view thereof, and FIG.
The figure is a plan view of the pusher device when it is extended, and FIG. 3 is a side view of the pusher device when it is extended. Figure 4 is an explanatory diagram of the use of a forklift and a pusher device with a vertical movement mechanism attached to it, Figures 5 and 6
The figures show a conventional forklift with a butcher device, FIG. 5 is a side view, and FIG. 6 is an explanatory view for use. 206. forklift. 361. 1st mast. 32, Lift cylinder. 33. First lift bracket. 35,, Fork. 509. Conveyor. 616. Second mast, 61. ,,mast. 62, Lift cylinder. 63, 2nd lift bracket. 711. Prascher device. 71, Hydraulic cylinder. 72,, pantograph. 91-95. ,,luggage. Applicant Toyota Industries Corporation Representative Patent Attorney Yoshiyasu Takahashi Figure 1 Figure 2 ha Figure 5

Claims (1)

[Claims] In a pusher device disposed on the front surface of a forklift truck having a pair of first masts, a first lift bracket for raising and lowering the first masts, and a fork attached to the first lift bracket, the first lift bracket has a first lift bracket. Two masts are erected, and the second mast is provided with a lift cylinder and a second lift bracket that is movable up and down by the lift cylinder, and the second lift bracket is provided with a pusher device that is extendable and retractable in the front and rear directions. A pusher device with a vertical movement mechanism.