JP3264304B2 - Pusher device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pusher device for a forklift.

[0002]

2. Description of the Related Art In a loading operation of a forklift, for example, when a large number of relatively small loads packed in bags are loaded, it is difficult to handle a large number of loads collectively with a normal fork. . It is also difficult to insert the fork under the load. Therefore, in order to solve the above-mentioned problem, a pallet is usually laid under a load to be handled.

[0003] If a pallet is used, the load can be supported on a wide surface of the pallet, so that the above-mentioned loads can be easily handled collectively. Also, the fork can be easily inserted into the pallet. On the other hand, for example, when a load is loaded on a carrier of a transport vehicle using a forklift, if the carrier is large, a normal fork does not reach the place where it is to be placed, and the load is often transferred manually. Therefore, in order to solve such a problem, a method of providing a forklift with a so-called pusher device for pushing a load forward is widely used.

[0004]

However, when the pallet and the pusher device described in the preceding section are used in combination, there are the following problems. That is, when a load loaded on a pallet is pushed out and transferred to, for example, a carrier of a transport vehicle by a pusher device, only the load cannot be pushed out, and as a result, the pallet is pushed out together. Therefore, not only the load but also the pallet is transferred to the carrier of the transport vehicle, and the pallet must be later recovered from the destination of the load at high cost.

Of course, if the reloading operation is manually performed when the transport vehicle is transferred to the loading platform, the above-mentioned problem can be solved. However, the work efficiency is deteriorated and the burden on the operator is increased. Not a target. Therefore, a method is considered in which the pusher device is used, for example, by using a clamp device together so as not to use the pallet.

That is, instead of inserting a fork into a pallet, a method is used in which a load is directly clamped by a clamp device and gripped in front of a pusher device. However, according to this method, the load to be handled is limited to a package that can be clamped by the clamp device, and the provision of the clamp device leads to a significant increase in cost. The present invention is intended to solve the above-described problems, and is not limited to a packing form when transferring a load on a pallet using a forklift pusher device.
It is an object of the present invention to provide a low-cost and highly reliable pusher device which can easily transfer only the load on the pallet without transferring the pallet.

[0007]

According to a first aspect of the present invention, there is provided a pusher device comprising: a pallet ;
Replace the receiving member with the load instead of the pallet
The load is received by the load receiving member, and the load on the load receiving member is pushed out.
And to transfer the cargo . In the pusher device according to the second aspect, the pallet is removed from under the load.
Means having a horizontally slidable load receiving member, means for horizontally sliding the load receiving member, and a stopping member for preventing the load from moving.

According to a third aspect of the present invention, in the pusher device, the means for horizontally sliding the load receiving member is formed by a hydraulic cylinder. In the pusher device according to the fourth aspect, the horizontal direction in which the load receiving member slides is set to the left and right of the forklift. In the pusher device according to claim 5,
The stopping member is provided at a position facing the pallet removing direction.

According to a sixth aspect of the present invention, there is provided a pusher device having means for sliding the stopping member up and down.

[0010]

According to the pusher device described in each claim, in the cargo handling operation using the pallet, the load to be loaded is replaced by the pallet.
Instead, it was received by the load receiving member and the load was transferred.
Therefore, only the load can be transferred without transferring the pallets. Further, according to the pusher device described in each claim, since the structure is simple, inexpensive and high reliability can be obtained.

Further, in the pusher device according to the second, third, fourth, fifth or sixth aspect of the present invention, since the stopping member is provided, the load is moved when the pallet is removed. Or, to prevent the collapse of the load. Further, claim 3
According to the pusher device described in (1), since the means for sliding the load receiving member in the horizontal direction is a hydraulic cylinder, the slide of the load receiving member can be easily performed by remote control from the driver's seat.

Further, according to the pusher device of the fourth aspect, the pallet is moved to and removed from the left side or the right side of the forklift, so that the pallet does not hinder the advance of the forklift and can be easily removed. Further, according to the pusher device of the sixth aspect, since the stopping member can be slid in the vertical direction, the position can be adjusted appropriately in accordance with the load or the height of the pallet.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the structure of the pusher device 15 according to the first embodiment, and FIG. 2 is a perspective view showing a part of the structure of the pusher device 15. FIG.
In the above, two rails 2 having a "U" -shaped cross section extend upward from substantially the upper half of the front surface of the holder 1 so as to face the grooves and to be parallel with symmetry and at a constant interval. It is provided. At the lower ends of both rails 2, a bracket 3 having a through hole between both side surfaces is provided. Further, brackets 4 each having a through-hole located coaxially with the through-hole are provided on both sides of the bracket portions 3 relative to the rail 2.

On the other hand, from the left side of the holder 1, for example, forward, a restraining member 5 is provided so as to be perpendicular to the holder 2. Further, a slide bracket 12 having a “T” -shaped cross section with a thicker front portion is provided from the lower end of the front surface of the holder 1 toward the horizontal right of the holder 1.
Are provided to extend. A plate-shaped load receiving member 11 connected to the lower surface of the slide portion 10 having a “C” -shaped cross-sectional shape and slidably fitted to the slide bracket 12 is indicated by an arrow Q along the slide bracket 12. It is slidably provided in the direction shown.
Further, the bracket 9 provided on the upper surface of the slide portion and the tip of the rod 8 of the hydraulic cylinder 6, and the bracket 7 provided on the front surface of the holder 1 and the main body end of the hydraulic cylinder 6 are connected to each other. The member 11 is slidable in accordance with the expansion and contraction of the rod 8. Further, a contact member 21 made of, for example, elastic rubber is provided on the left side of the load receiving member 11 so as to be detachable with a bolt (not shown).

As shown in FIG. 1, an end of an arm 16a constituting a part of the panta link 16 is inserted between the bracket 3 and the bracket 4, and the arm 16a
And through holes (not shown) provided at the ends of the bracket 3 and the through holes of the bracket portion 3 and the bracket 4 are rotatably fixed by pins. Similarly, the Pantalink 16
Are not shown at the end of the arm 16b which constitutes a part of
B Ra is rotatably provided along the groove of the rail 2, it is enabled Wado vertically.

The pantograph link 16, in which the arms including the arms 16 a and 16 b are formed in a pantograph shape, can be extended and contracted in a direction indicated by an arrow P by a hydraulic cylinder 18. Further, the Pantalink 1
6, a pusher plate 1
7 is provided in the same configuration as the connection portion with the rail 2 described above.

The holder 1 is connected to a mast 13 via a lift bracket, and is connected to a forklift body 14.
It is moved up and down by the operation from. Next, the operation of the pusher device 15 configured as described above will be described below. Before the forklift operator performs the cargo handling,
As shown in (1), first, the rod 8 of the hydraulic cylinder 6 is extended, the load receiving member 11 is slid to the right of the holder 1, and the front of the holder 1 is kept free. At the same time, the panta link 16 is folded, and the pusher plate 17 is drawn to the limit of the holder 1 side. Needless to say, the above-mentioned limit is a limit that does not interfere when the load receiving member 11 slides or does not come into contact with other members. For example, a stopper (not shown) is provided so as not to exceed the limit during operation. is there.

Thereafter, as shown in FIG. 3, the load 20 loaded on the pallet 19 is moved by a forklift (not shown) so as to be located between the restraining member 5 and the load receiving member 11 in front of the holder 1. At this time, in consideration of the stability of the load, it is preferable that the load 20 move to a position where the load 20 contacts the front surface of the pusher plate 17. Since the pusher plate 17 is located on the front surface of the holder 1, there is no fear that the load 20 directly contacts the hydraulic cylinder 6 or the like and is damaged.

The holder 1 is mounted on the mast 1 so that the height of the load receiving member 11 is slightly lower than the upper surface of the pallet 19.
Raise and lower along 3 and adjust. Next, the hydraulic cylinder 6 slides the load receiving member 11 in the direction indicated by the arrow R, and pushes the pallet 19 to the left as shown in FIG. 4, instead of receiving the load 20 with the load receiving member 11. To support. At this time, since the left side surface of the load 20 is restrained by the restraining member 5, the load 20 does not move at the same time, and the collapse of the load can be prevented. Since the height of the load receiving member 11 is previously adjusted to the above-mentioned height, the load
While the lower surface is smoothly entered, there is almost no step at the time of replacement from the pallet 19 to the load receiving member 11, and the load 20 does not become unstable.

Further, by using the hydraulic cylinder 6 as a means for sliding the load receiving member 11, the cost can be reduced.
Enables remote control from the driver's seat. Of course, other means may be used as long as the same operation is obtained. Further, the position where the stopping member 5 is provided may be of course on the right side of the holder 1. In that case, the arrangement of the hydraulic cylinder 6 is also reversed left and right, and the direction in which the pallet 19 is pushed out also changes to the right.

By the way, the abutting member 21 made of elastic rubber is provided on the left side of the load receiving member 11 as described above, whereby the excellent operation described below can be obtained. That is, a material such as elastic rubber generally has flexibility, elasticity, and a high coefficient of friction. If it has flexibility and a high coefficient of friction, it can flexibly follow the shape of the side surface of the pallet 19 that comes into contact when the load receiving member 11 slides, and can reliably catch the side surface of the pallet 19 and furthermore, Damage to the side surface of the pallet 19 and the left side of the receiving member 11 can be prevented. In addition, if it has an elastic force, it absorbs and reduces the impact when the load receiving member 11 contacts the side surface of the pallet 19.

Therefore, the elastic rubber is not limited to the above-mentioned material as long as the material has the same effect as described above, and other materials may be used. As a material capable of obtaining the same action as described above, for example, a synthetic resin represented by a Si resin or an F resin is considered. Further, since the contact member 21 comes into contact with the pallet 19, the contact member 21 becomes worn as it is used. Therefore, periodic replacement is required. However, as described above, since the corresponding contact member 21 is detachably fixed with a bolt (not shown), the replacement can be performed in a very short time, which may impair workability at all. There is no.

Subsequently, the cargo handling operation is performed by the same operation as that of a normal forklift, and the cargo 20 is moved to, for example, the vicinity of the carrier of the transport vehicle and lifted up. Since the pallet 19 is completely pushed rightward by the load receiving member 11, the pallet 19 is not hindered from moving during the movement. Of course, the pallet 19
Can be easily eliminated.

Then, similarly to the ordinary pusher device, the panta link 16 is extended in front of the holder 1,
The load 20 is pushed forward by the pusher plate 17. Therefore, transfer of only the load 20 without the pallet 19 is achieved. However, since the structure is simple, inexpensive and high reliability can be obtained. The configurations described above are not limited to the first embodiment, and other configurations may be used without departing from the scope as long as the same operation is obtained. The same applies to other embodiments described below.

Next, FIG. 5 is a perspective view showing a partial structure of a pusher device according to a second embodiment. In the figure, a blocking member 5a slidable in the vertical direction is provided instead of the blocking member 5 in the first embodiment. That is, with the same configuration as the load receiving member 11, the stopping member 5a having a slide portion 23 slidably fitted to a slide bracket 22 provided vertically above and below a substantially left end portion of the front surface of the holder 1a is a hydraulic cylinder 2
4 allows the slider to be slid in the direction indicated by the arrow S and adjusted to an arbitrary height.

According to the above configuration, the stopping member 5
Since a can be adjusted to an optimum height appropriately matching the height of the load or the pallet, it is possible to always discharge the pallet stably regardless of the height of the load or the pallet.

[0027]

As described above, according to the present invention, when transferring the load on the pallet using the pusher device of the forklift, the load is not limited to the packing form, and the pallet is not transferred. It is possible to provide a low-cost and highly reliable pusher device which can easily transfer only the load of the pusher.

[Brief description of the drawings]

FIG. 1 is a side view illustrating a structure of a pusher device according to a first embodiment of the present invention.

FIG. 2 is a perspective view illustrating a partial structure of a pusher device according to a first embodiment of the present invention.

FIG. 3 is a front view illustrating the operation of the pusher device according to the first embodiment of the present invention.

FIG. 4 is a front view illustrating the operation of the pusher device according to the first embodiment of the present invention.

FIG. 5 is a perspective view illustrating a partial structure of a pusher device according to a second embodiment of the present invention.

[Explanation of symbols]

5, 5a: stopping member, 6: hydraulic cylinder, 11: load receiving member, 15: pusher device, 24: hydraulic cylinder

Claims (6)

(57) [Claims] In pusher device according to claim 1] forklift, comprising means for removing the pallet from the bottom loading cargo,該手
The tier replaces the pallet with the load
A load receiving member for receiving in place of the
A pusher device characterized in that the load is transferred by pushing out the load of the pusher. 2. A forklift pusher device.
Means for removing the pallet from under the load, the means comprising a load receiving member slidable in the horizontal direction, a means for sliding the load receiving member in the horizontal direction, and a stopping member for preventing the load from moving. It shall be the feature that has
Flop Ssha apparatus. 3. The pusher device according to claim 2, wherein said means for sliding said load receiving member in a horizontal direction is a hydraulic cylinder. 4. The pusher device according to claim 2, wherein the horizontal direction in which the load receiving member slides is right and left of the forklift. 5. The pusher device according to claim 2, wherein the stopping member is provided at a position facing the pallet removing direction. 6. The apparatus according to claim 2, further comprising means for sliding said stopping member up and down.
The pusher device according to claim 4 or claim 5.