JPS6033687B2 - Pallet transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pallet transfer device capable of moving between a truck bed and a cargo field.

In order to streamline cargo transportation and save labor, pallets are used to load cargo between truck beds and cargo storage areas via sliding parts such as rollers installed in large numbers in parallel to transport cargo between specific locations. A method has been proposed in which the pallet is made movable and the pallet is transferred using appropriate power.

Therefore, the height of the cargo battlefield is 'the height of the truck bed'.
However, in this type of logistics transportation system that actually uses a large number of trucks, the heights of the truck loading area and the loading area do not match, so they are usually built at an appropriate distance and a treadle is installed here. The work is carried out by hand.

Therefore, when transferring pallets, it is necessary to move the pallets beyond the range of this treadle, and the power source installed on either the Atsushi storage site or the truck side, such as a winch, must be used. However, considerable labor is required for each cargo handling operation.

In addition, a winch is installed on the truck side, and when using this winch to pull a pallet from the training yard onto the loading platform, if the loading platform is tilted forward and downward, the pallet will run on its own during the pull-in process and end up at the edge of the loading platform. It is also inconvenient from a safety point of view, as there are many cases where the vehicle collides with other objects. The present invention was invented in view of the above points, and is provided on the truck side,
To provide a pallet transfer device that allows pallets to be freely moved between a loading platform and a loading area with or without a treadle, and also prevents the pallets from running on their own and eliminates various troubles caused by this at once. It is something. Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1 is the chassis of the truck, 2 is a loading platform provided on this chassis, and 3 is a group of many rollers arranged in parallel in the longitudinal direction on the surface of the loading platform 2, on which a pallet 4 slides.

Reference numeral 6 denotes an extension frame provided at the rear end of the loading platform 2 so that it can freely protrude and retract in the direction of movement of the pallet 4. The first half of the frame is inserted into the loading platform 2, and the second half is curved into a crank shape and extends outward from the loading platform surface. It extends to

Reference numeral 6 denotes a wire that is suspended between the frame body 5 and the loading platform 2, facing the loading platform surface and forming an upper running part 6'.
At the front part of the loading platform 2, it is stretched over a pulley 7 which is attached with an outward elastic force applied by a spring, and at the rear of the loading platform 2, it is stretched over a pulley 8 attached to the rear end of the frame body 5. The front half of the body 5 is folded over in an S-shape between a pulley 9 attached to the front end of the frame 5 and a pulley 10 attached to the rear end of the loading platform 2.

Reference numeral 11 denotes a wire running mechanism mounted under the loading platform, and its main components include a motor 12 and winding drums 13 and 14 connected to this motor 12. Both ends of 6 are wound and fastened with the winding direction reversed.

In effect, therefore, the wire 16 is laid out so as to perform the same effect as in an endless (inorganic) state. 15
1 is a means for engaging the pallet 4 provided on the upper running portion 6' of the wire 16; in the illustrated example, the hook 16 can be freely engaged with and detached from a pin 17 provided on the pallet 4.

Reference numeral 18 is a locking pin between the frame 5 and the loading platform 2, which allows the frame 5 to tilt while the frame 5 is largely pulled out to the rear of the loading platform.
The pin insertion hole 19 of the frame body 5 is formed in the shape of an elongated hole.

In the figure, reference numeral 20 denotes a concave groove formed through the loading platform surface, and the upper running portion 6' of the wire 16 is located in this concave groove.
It is designed to run around the lower levels. Further, the integrated drums 13 and 14 are used to switch the rotational direction of the motor 12,
Alternatively, the direction of rotation is changed by a rotational direction cutting mechanism attached to the groove, so that the wire 16 can freely move back and forth.

The present invention is constructed as described above, and its operation will be explained when the pallet 4 is moved from the loading platform 2 to the Atsushi Yard 21. By driving a truck, the rear end of the loading platform 2 approaches the battlefield 21. First, pull out the extension frame 5 in the gap between the two and hang the rear end on the battlefield 21.
The locking pin 18 is inserted into the pin insertion hole 19 of the frame body 5 and fixed, and the footboard 22 is hung over it.

When the frame 5 is pulled out and extended, the wire 16 is wrapped around the pulley 9 of the frame 5 and the pulley 10 of the loading platform 2 in an S-shape, so it is independent of the rotation of the wire 1. It's huge and can be pulled out freely. Next, the motor 12 is started to rotate the upper running part 6' of the wire 16 backwards by winding and manipulating both ends of the wire 1 to the pair of drums 13 and 14. The pallet 4 engaged by the hook 16 also moves together, and eventually the hook 16 reaches the rear end of the frame 5 and the pallet 4
The pallet 4 is moved over the footboard 22 to the battlefield 21, where the hook 16 is disengaged from the pallet 4, and the transfer work is completed. In addition, when the pallet 4 is pulled in and transferred from the loading area 21 to the loading platform 2, the operation may be performed based on the reverse order of the above operations.

As is clear from the above description, the device of the present invention is installed on the bed of a truck, and in order to transfer pallets between the bed and the cargo storage area, one end of the pallet is connected to a wire having an upper running part on the surface of the bed. The two are moved together when they are engaged, and the extension frame over which the wire 1 is stretched can be moved in and out of the loading platform, regardless of the rotation of the wire 1, so that there is no space between the end of the loading platform and the battlefield. Even if there is a gap between the pallets, the pallet can be moved over the gap and reliably transferred, and there is no need to change wires between loading and unloading the pallet. The work can be simplified without bothering the personnel.

In addition, even while the pallet is being moved, the restraint relationship by the wire 1 is maintained, so the pallet does not move by itself due to the slope of the loading platform, and it is safe, and the wire 1 does not become sagging. There are no problems caused by slack wires, and there are no problems caused by slack wires.
Furthermore, the structure is simple, the space under the loading platform can be used effectively, and it is easy to handle.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a rear view thereof, Fig. 3 is a plan view of the wire-running mechanism, and Fig. 4 shows how it is used. FIG. 1... Chassis, 2... Loading platform, 3... Loaf group, 4...
...Pallet, 5...Extension frame, 6...
・Wire 1, 6'... Upper running part, 7, 8, 3
, 10... Pulley, 11... Wire-running mechanism, 12... Motor, 13, 14...
・Drum, 15...Engagement means, 16...
・Hook, 17...Pin, 18... ... Locking pin, 19 ... Pin insertion hole, 20 ...
・Concave groove, 21...Soil area, 22...Treadboard. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. In a truck carrying a pallet that can be moved between a loading platform and a cargo storage area via sliding members such as rollers, an extension frame is provided at the end of the loading platform in the direction of pallet movement, and the frame A wire is suspended between the pallet and the pallet, the wire is connected to a wire running mechanism so as to be able to run back and forth, and a connecting means is provided between the upper running part of the wire and the end of the pallet. Pallet transfer device.