JP2911771B2 - Cargo handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling apparatus which is attached to a cargo handling vehicle such as a forklift or a wheel loader, and is used when loading and unloading cargo such as carton boxes of uniform size.

[0002]

2. Description of the Related Art Conventionally, as a container used for loading and unloading luggage such as a carton box of a uniform size with respect to a large container such as a marine container, for example, Japanese Utility Model Laid-Open No.
A cargo handling vehicle described in No. 76293 is known. This is a vehicle body equipped with a traveling device, a fork device provided on the front side of the vehicle body for raising and lowering the pallet, and a suction device provided on the vehicle body for sucking and moving luggage between the pallet lifting position and the front position thereof. And a moving device. However, such a vehicle is a dedicated cargo-handling vehicle and has many driving parts as a cargo-handling device, so that there is a problem that the structure is complicated and the cost is high.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in order to solve the problem. The object of the present invention is to make the structure relatively simple and reduce the cost. An object of the present invention is to provide a cargo handling device that can be designed.

[0004]

According to a first aspect of the present invention, there is provided a cargo handling device comprising a support detachably provided on a lifting body of a cargo handling vehicle, and a roller provided on a front side of the support to support a load. A conveyor, a front and rear parallel link provided on a support, a movable body provided on the parallel link and capable of moving in parallel from a descending position to an ascending forward position, and a front and rear moving body provided on the movable body so as to be able to move back and forth, The present invention is characterized in that it comprises a front-rear drive unit for moving the front-rear moving body with respect to the movable body, and a vacuum adsorber provided on the front side of the front-rear moving body for adsorbing luggage. The cargo handling apparatus according to claim 2 of the present invention is a mounting body detachably provided on a lifting body of a cargo handling vehicle, front and rear parallel link booms provided on the mounting body, and a descent position provided on the parallel link boom. To the ascending position, a roller conveyor provided on the front side of the support to support luggage, front and rear parallel links provided on the support, and ascending from the descent position provided on the parallel links A movable body that is translated in parallel to the forward position, a front-rear moving body that is provided to be movable back and forth on the movable body, a front-rear moving driver that moves the front-rear moving body with respect to the movable body, and a luggage that is provided on the front side of the front-rear moving body And a vacuum adsorber for adsorbing the water.

[0005]

[Function] To remove luggage placed directly on the floor,
As the cargo handling vehicle is running, the roller conveyor is grounded on the floor close to the load as the lifting body is raised and lowered. When the roller conveyor is grounded on the floor, the front-rear moving unit is moved forward by the front-rear drive unit, and the vacuum suction unit is brought into contact with the rear surface of the baggage and the baggage is sucked. It is absorbed by the vessel. When the load is sucked by the vacuum adsorber, the front-rear drive unit is operated in reverse so that the front-rear moving body is moved backward with respect to the movable body, and the baggage is moved back on the floor surface and the roller conveyor is moved. Matched to the front end. When the load is brought into contact with the roller conveyor, the load following the movable body is moved forward by the parallel link while being raised, and the rear side of the load is lifted and moved rearward, so that the load rides on the roller conveyor. When the load gets on the roller conveyer, the load is moved back on the roller conveyer, supported by the roller conveyer, and transported while being adsorbed and supported by the vacuum adsorber. When the luggage is placed directly on the floor, the procedure is the reverse of that for unloading luggage placed on the floor. When unloading stacked loads, the height position of the roller conveyor is the same as the stacking surface or is located above the roller conveyor thickness. Then, it can be performed in the same manner as when the luggage is placed on the floor. When the height position of the roller conveyor is the same as the stacking surface, it is not necessary for the load to ride on the roller conveyor by the thickness. When stacking the luggage, the procedure is performed in the reverse manner to wholesale the stacked luggage. When the lifting / lowering drive is operated, the one provided with the attachment, the parallel link boom, and the lifting / lowering drive causes the parallel link boom to move the components subsequent to the support from the lowered position to the raised position in parallel.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a cargo handling device according to a first embodiment of the present invention. FIG. 2 to FIG. 7 are side views showing a work procedure when taking out a load placed on the floor. FIG. 8 is a side view showing a work procedure when unloading stacked goods. The cargo handling device 1 includes a support 2, a roller conveyor 3, a parallel link 4,
Movable body 5, forward and backward moving body 6, forward and backward moving drive 7, vacuum suction device 8
The main part is constituted from the above and is applied to the cargo handling vehicle 50 such as a forklift or a wheel loader, and a predetermined number (four) of baggage A such as a carton box (containing parts and products) having a uniform size. One). The support body 2 is detachably provided on the elevating body 51 of the cargo handling vehicle 50. In this example, the supporting body 2 has a long plate shape in the front-rear direction, and the left and right forks (elevating body) 51 of the forklift (cargo handling vehicle) 50 are provided. A fork pocket 9 that is removably inserted from the rear and a stopper (not shown) for stopping the fork 51 are provided. The roller conveyor 3 is provided on the front side of the support 2 and supports the load A. In this example, the roller conveyor 3 is a free roller conveyor having a plurality of (four) roller rows, and the same number of load A Are freely moved at a time to support them. The thickness B of the roller conveyor 3 is about 80 mm. The parallel links 4 are front and rear provided on the support 2. In this example, there are two pairs of front and rear parallel left and right. It is provided so as to be rotatable from the rearwardly inclined lowering position to the upright position, and a stopper 11 is provided between the support 2 and the stopper 11 for preventing the rotation of the two or more positions. The movable body 5 is provided on the parallel link 4 and is capable of moving in parallel from the descending position to the ascending forward position. In this example, the movable body 5 has a long rectangular tube shape in the front-rear direction and is disposed between the left and right parallel links 4. The upper end thereof is pivotally connected by a horizontal axis 12, and a virtual quadrilateral connecting the horizontal axes 10, 12 forms a parallelogram. The front-rear moving body 6 is provided on the movable body 5 so as to be able to move back and forth. In this example, the front-rear moving body 6 has a long rectangular tube shape in the front-rear direction, and is provided inside the movable body 5 so as to be slidable in the front-rear direction. . The front-rear drive unit 7 moves the front-rear moving body 6 with respect to the movable body 5, and in this example, is a cylinder of fluid pressure (eg, hydraulic pressure or air pressure),
The tail side is arranged inside the front-rear moving body 6 and the tail side is connected to the movable body 5, and the rod side is connected to the front-rear moving body 6 by a horizontal shaft 13. Although not shown, the tail side is mounted on a forklift 50 via a hose or the like. Connected to the fluid pressure source. The vacuum adsorber 8 is provided on the front side of the front-rear moving body 6 to adsorb the luggage A. In this example, the vacuum adsorber 8 adsorbs a plurality (four) of the luggage A, and is provided on the front side of the front-rear moving body 6. The support 14 is provided with a laterally long support 14, a rod 15, which can be moved back and forth at a predetermined interval in the lateral direction, a spherical bearing 16 provided on the front side of the support 15, and a support 15 provided therebetween. A compression spring 18 interposed between the suction disk 17 and the spherical bearing 16 or between the suction disk 17 and the support 14
And a nut 19 screwed to the rear side of the rod 15. Each suction disk 17 can be moved back and forth (about 90 mm) and swingable with respect to the support 14. Although not shown, each suction disk 17 is connected to a vacuum source mounted on a forklift 50 via a hose or the like.
A balancer 20 is provided between the support 2 and the movable body 5 to balance the weight of the movable body 5 and the subsequent ones. In this example, a compression spring is used.

Next, the operation will be described based on such a configuration. As shown in FIG. 2, when taking out the load A placed directly on the floor D, the roller conveyor 3 is moved by the forklift 50 and the fork 51 is moved up and down, so that the roller conveyor 3 is placed close to the load A. Grounded on plane D. At this time,
The distance C between the roller conveyor 3 and the load A is about 0 to 90 mm
Is set to be within the range. When the roller conveyor 3 is grounded to the floor D, as shown in FIG. 3, the cylinder 7 is extended and the front and rear moving body 6 is moved forward with respect to the movable body 5, and the suction disk of the vacuum suction device 8 is moved. 17 is brought into contact with the rear surface of the load A, and the load A is sucked by the vacuum suction device 8. At this time, since the suction disk 17 is supported by the support 14 so as to be able to move back and forth, it is not damaged. Luggage A
Is adsorbed by the vacuum adsorber 8, as shown in FIG.
As the cylinder 7 is shortened, the front-rear moving body 6 is moved backward with respect to the movable body 5, and the load A is slightly moved back on the floor surface D to abut the front end of the roller conveyor 3. When the load A is brought into contact with the roller conveyor 3, as shown in FIG. 5, the movable body 5 and the subsequent ones are moved forward while being lifted by the parallel link 4, and the rear side of the load A is moved backward while being lifted. The luggage A gets on the roller conveyor 3. At this time, since the suction plate 17 is supported so as to be able to swing with respect to the support 14, the suction plate 17 is not damaged, and the height of the movable body 5 and thereafter is automatically adjusted by the parallel link 4. Therefore, the load A and the vacuum suction device 8 do not slip off. When the load A gets on the roller conveyor 3, the load A is moved backward on the roller conveyor 3 as shown in FIG. Then, as shown in FIG. 7, the load A is supported by the roller conveyor 3 and the vacuum suction device 8
Is transported while being supported by suction. At this time, luggage A
Is supported by the vacuum suction device 8, so that there is no fear of collapse of the load. When the package A is placed directly on the floor D, the procedure is the reverse of that for removing the package A placed on the floor D.
As shown in FIG. 8, when unloading the stacked goods A, the height position of the roller conveyor 3 is the same as the height of the stacked surface E or the height B of the roller conveyor 3.
Then, it can be performed in the same manner as when the package A is placed on the floor D. When the height position of the roller conveyor 3 is the same as the stacking surface E, the load A is
There is no need to ride only the thickness B. The stacking of the packages A is performed in a manner reverse to the case of unloading the stacked packages A.

Next, a second embodiment of the present invention will be described with reference to FIGS. The cargo handling device 30 of the second embodiment
Are a mounting body 31, a parallel link boom 32, a support body 33,
The point that the lifting drive 34 is provided is different from the cargo handling device 1 of the first embodiment. The rest is the same as the cargo handling device 1, and the same reference numerals are given and detailed description is omitted. The attachment body 31 is detachably provided on the elevating body 51 of the cargo handling vehicle 50. In this example, the attachment body 31 has a vertical plate shape and is a forklift (a cargo handling vehicle).
Upper and lower engaging claws 35 for detachably suspending the carriage (elevating body) 51 are provided. The parallel link booms 32 are front and rear provided on the mounting body 31. In this example, two sets of front and rear parallel left and right are provided, and the front side is widened and the upper end is provided on the mounting body 31. The outer bracket 36 has a narrower rear one, and its upper end is pivotally connected to an inner bracket 36 provided on the mounting body 31 by a horizontal shaft 37. The support 33 is provided on the parallel link boom 32 and can be moved in parallel from the lowered position to the raised position. In this example, the support 33 has a long plate shape in the front-rear direction, has a narrow width on the rear side, and has a parallel shape on the front side. The lower end of the link boom 32 is pivotally connected to the wide portion and the lower end of the rear parallel link boom 32 is connected to the narrow portion by the horizontal shaft 38 so that the lower end of the link boom 32 can be moved in parallel from the lowered position to the raised position.
The virtual quadrilateral connecting the horizontal axes 37 and 38 forms a parallelogram. The lifting drive 34 raises and lowers the support 33 with respect to the mounting body 31. In this example, the lifting drive 34 is a fluid pressure (oil pressure, air pressure, etc.) cylinder, and the tail side is the mounting body 3
1, the rod side is pivotally connected to the upper end of the rear parallel link boom 32 by a horizontal shaft 40, and is mounted on a forklift 50 via a hose or the like, although not shown. It is connected to a fluid pressure source. When the lifting / lowering drive unit 34 is operated, the loading / unloading device 30 moves from the lower position shown by the solid line in FIGS.
It is translated to the ascending position indicated by the chain line of 0. At this time,
Since the rear side of the parallel link boom 32 is made narrow so as not to interfere with the wide front side, smooth lifting and lowering is performed. Thus, such a cargo handling device 30 can be used to load luggage A to a place where the height is limited, such as a large container F.
Ideal for putting in and out. This is because, in the cargo handling device 1 of the first embodiment, when trying to handle the cargo A near the ceiling of the container F, the cargo hits the ceiling first due to the lifting of the lifting body 51 of the cargo handling vehicle 50, and the work cannot be performed. In the cargo handling device 30 of the present embodiment, this can be performed without raising and lowering the elevating body 51.

The roller conveyor 3 and the vacuum suction device 8 are
In the above embodiment, four packages A are handled. However, the present invention is not limited to this. The longitudinal drive 7 and the lifting drive 34
Is a cylinder in the above embodiment, but the invention is not limited to this, and a motor or the like may be used. The stopper 11
In the above embodiment, the support is provided between the support 2 and the parallel link 4. However, the present invention is not limited to this, and the support may be provided between the support 2 and the movable body 5. The balancer 20 is a spring in the above embodiment, but is not limited to this, and may be, for example, an air damper or a hydraulic cylinder. Although the balancer 20 is provided between the support 2 and the movable body 5 in the above embodiment, the balancer 20 is not limited to this, and may be provided, for example, between the support 2 and the parallel link 4.

[0010]

As described above, according to the present invention, as described above,
The following excellent effects can be obtained. (1) Consists of a support, a roller conveyor, a parallel link, a movable body, a front-rear moving body, a front-rear moving driver, and a vacuum suction device,
Above all, the luggage placed on the floor is adsorbed by the vacuum adsorber, these are lifted up by the parallel link and the front-rear drive, and moved backward to be drawn into the roller conveyor.
Since the driving parts were minimized using a so-called cargo handling vehicle,
The structure is relatively simple and cost can be reduced. (2) Since the roller conveyor is provided to freely move and support the load, the load is not damaged. (3) Mounting body, parallel link boom, support, lifting drive, roller conveyor, parallel link, movable body, front and rear moving body,
Containers that consist of a back-and-forth motion drive and a vacuum suction device, especially those that translate the support and subsequent components from the descent position to the ascending position by means of parallel links and elevating drives, have a limited height. The luggage can be easily taken in and out of the equipment.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cargo handling device according to a first embodiment of the present invention.

FIG. 2 is a side view showing an operation procedure when taking out a load placed on the floor.

FIG. 3 is a view similar to FIG. 2;

FIG. 4 is a view similar to FIG. 2;

FIG. 5 is a view similar to FIG. 2;

FIG. 6 is a view similar to FIG. 2;

FIG. 7 is a view similar to FIG. 2;

FIG. 8 is a side view showing a work procedure when unloading stacked goods.

FIG. 9 is a perspective view showing a cargo handling device according to a second embodiment of the present invention.

FIG. 10 is a side view showing an operation procedure in the container by the cargo handling device shown in FIG. 9;

[Explanation of symbols]

1,30 ... Load handling device, 2,33 ... Support, 3 ... Roller conveyor, 4 ... Parallel link, 5 ... Movable body, 6 ... Back and forth moving body,
7 ... longitudinal drive, 8 ... vacuum suction device, 9 ... fork pocket, 10, 12, 13, 37, 38, 40 ... horizontal axis, 1
1 ... stopper, 14 ... support, 15 ... rod, 16 ...
Spherical bearing, 17: suction plate, 18: spring, 19: nut, 20: balancer, 31: mounting body, 32: parallel link boom, 34: lifting / lowering drive, 35: engaging pawl, 36, 3
9: Bracket, 50: Cargo handling vehicle, 51: Lifting body, A ...
Luggage, B: Thickness of roller conveyor, C: Distance between roller conveyor and luggage, D: Floor surface, E: Stacked surface, F: Container.

Claims (2)

(57) [Claims] 1. A support that is detachably mounted on a lifting body of a cargo handling vehicle, a roller conveyor that is provided on a front side of the support and supports loads, a front and rear parallel link provided on the support, and a parallel link. A movable body that is provided in the movable body and that can move in parallel from the descending position to the ascending forward position, a longitudinal moving body that is provided to be movable in the longitudinal direction on the movable body, a longitudinal movement driving device that moves the longitudinal moving body with respect to the movable body, A cargo handling device, comprising: a vacuum suction device provided on a front side of a moving body to suction a load. 2. A mounting body removably provided on an elevating body of the cargo handling vehicle, a front and rear parallel link boom provided on the mounting body, and a parallel link boom provided on the parallel link boom and capable of moving in parallel from a lowered position to a raised position. The support, a lifting drive for raising and lowering the support with respect to the mounting body, a roller conveyor provided on the front side of the support to support the load, a front and rear parallel link provided on the support, and a parallel link. A movable body which is provided and is moved in parallel from a descending position to an ascending forward position, a longitudinal moving body provided to be movable in the longitudinal direction on the movable body, a longitudinal moving driver for moving the longitudinal moving body with respect to the movable body, and a longitudinal moving body And a vacuum suction device provided at a front side of the suction device for suctioning a load.