JPH0432324Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a pallet cargo conveying device for carrying in and out cargo loaded on pallets.

(Prior Art) A conventional pallet cargo conveying device has a vertically long inclined base, and pallets loaded with cargo are movably placed on both sides of the base in the longitudinal direction at intervals. A brake roller is provided in the roller group, and the braking action of the brake roller is adjusted according to the weight of the cargo, and the pallet loaded with cargo is moved from the upper end of the inclined base to the rollers. It was carried in on a group and was carried out from the lower end of the inclined base.

(Problem to be solved by the invention) In the above conventional case, since it is equipped with a vertically long inclined base, if you try to extend the length of the inclined base in the longitudinal direction, the height of the upper end will increase, and the length will increase. It is difficult to adjust the brake rollers depending on the weight of the cargo, and it is difficult to carry cargo in only from the high side of the sloped base and carry it out only from the low side of the sloped base. The problem was that it was inconvenient to do so.

In view of these conventional problems, the present invention has been developed to provide a convenient pallet cargo transport system that makes the base horizontal, eliminates the need for brake rollers, is not limited by the length of the base, and allows cargo to be carried in from both sides. The purpose is to provide equipment.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a vertically long horizontal base, and a structure in which cargoes are placed parallel to each other at intervals in the longitudinal direction on both sides of the base in the width direction. a group of rollers on which a pallet carrying a pallet is movably placed; a vertically elongated conveyance cart that is lower in height than the roller group and is movable along the longitudinal direction of the base between the two roller groups; a plurality of pallet hooks placed at predetermined intervals in the longitudinal direction and pivotally supported on the conveyance vehicle so as to be able to rise and fall, and in a free state, stand upright with their tips protruding from the upper surface of the roller group; and a plurality of pallet hooks placed on the conveyance vehicle and arranged at predetermined intervals. The pallet hook has a plurality of openings provided at intervals corresponding to the openings, and when the conveyance vehicle moves forward, the openings face the pallet hook to free the pallet hook, and when the conveyance vehicle retreats, the portions other than the openings are opened. a pressing plate that faces the pallet hook and pushes the pallet hook down to make it lie down; and a push piece that is lower in height than the roller group and is provided on the cargo input/output end side of the base and is movable in the longitudinal direction of the base. a forward drive tensioning member that connects the pusher piece and the transport vehicle; a winding device that makes a U-turn on the forward drive tension member at the cargo input/output end side of the base; one end of the tension member is connected to the transport vehicle; A pallet cargo comprising: a biasing member that urges the carrier in a backward direction; and a suction unit that sucks only the pressure plate backward and delays the advance of the pressure plate with respect to the carrier. The gist is the conveyance device.

(Function) The conveyance device according to the present invention is provided with a vertically long horizontal base, and roller groups are arranged in parallel at intervals in the longitudinal direction on both sides of the base in the width direction, and between the two roller groups. A vertically elongated conveying carriage having a lower height than the roller group is run along the longitudinal direction of the base, and is pivotally supported by the conveying carriage at a predetermined interval in the longitudinal direction so as to be able to rise and fall, and when in a free state, stands upright. It is equipped with a plurality of pallet hooks whose tips protrude from the upper surface of the roller group. Then, the conveyance device pushes a pusher piece, which is lower in height than the roller group and is provided on the cargo input/output end side of the base and is movable in the longitudinal direction of the base, deep with a fork of a forklift, and pushes the pusher piece into the back with a fork of a forklift. When the transport vehicle is moved forward via a forward drive tension member that connects the pieces and the transport vehicle and is made a U-turn with a winding tool on the cargo input/output end side of the base, the pieces are placed on the transport vehicle. only a pressing plate having a plurality of openings provided at intervals corresponding to a predetermined interval of the pallet hook is sucked rearward by a suction part to delay the advancement of the pressing plate with respect to the conveying carriage;
The opening faces the pallet hook to set the pallet hook in a free state, and by hooking the tip of the pallet hook in the free state onto the pallet, the cargo can be advanced and carried out. Further, in the conveying device, when the pushing of the push piece is released and the conveying carriage is moved backward using a biasing member in the backward direction whose one end is connected to the conveying carriage, the portion of the pressing plate other than the opening faces the pallet hook. Then, the pallet hook is pushed down to make it lie down, and in this state, the pallet loaded with cargo can be moved freely onto both roller groups and placed on either side of the base for transport and storage. ing.

(Example) Next, an example of the present invention will be described with reference to the drawings, taking the case of a pallet cargo shelf as an example.

Fig. 1 is a perspective view showing the overall appearance of a storage shelf using a pallet cargo transport device according to an embodiment of the present invention, Fig. 2 is a plan view showing the main parts of the same, and Fig. 3 is a partially enlarged view of the transport device. The side sectional view, FIG. 4, is a view taken along the line X--X in FIG. 3.

The pallet cargo shelf according to the present invention has three vertically elongated horizontal shelf frames 1 as bases spaced vertically at a predetermined interval, and each shelf frame 1 is equipped with a pallet cargo conveying device. The pallet cargo conveying device has roller groups 3, 3 arranged in parallel at intervals in the longitudinal direction on both sides in the width direction of each shelf frame 1 serving as a base, and between the two roller groups 3, 3. A low-height, vertically elongated transport vehicle 5 is run along the longitudinal direction of each shelf frame 1, and is pivotally supported by the transport vehicle 5 at predetermined intervals in the longitudinal direction so as to be able to rise and fall. The pallet hook 10 is provided with a plurality of pallet hooks 10 whose tips protrude from the upper surface of the pallet hook 3. And the conveyance device is
The pusher piece 13, which is lower in height than the roller groups 3 and 3 and is provided at the cargo entry/exit end 1b of the shelf frame 1 and is movable in the longitudinal direction of the shelf frame 1, is pushed into the back with the fork F of the forklift. The push piece 13 and the transport vehicle 5 are connected to the cargo entrance/exit end side 1b of the shelf frame 1.
When the transport vehicle 5 is advanced through the forward drive tension member 14 which is making a U turn with the pulley 15 as a hoisting device, the pallet hook 1 placed on the transport vehicle 5 is moved forward.
Only the pressure plate 12 having a plurality of openings 12a provided at intervals corresponding to a predetermined interval of
7, the pressing plate 1 is sucked backward and
2, the opening 12a is made to face the pallet hook 10, and the pallet hook 10 is opened.
is set in a free state, and the tip of the pallet hook 10 in this free state is hooked onto a pallet to carry out the cargo. In addition, when the conveyance device releases the pushing of the pusher piece 13 and moves the conveyance vehicle 5 backward using a tension spring 16 that is connected to the conveyance vehicle 5 at one end and serves as a biasing member in the backward direction, the push plate 12 is moved backward. The portion other than the opening 12a faces the pallet hook 10, and the pallet hook 1
0 is pushed down to make it lie down, and in this state, the pallet 4 loaded with cargo can be freely moved onto both roller groups 3 and 3 from either side of the shelf frame 1, and carried in and stored. It's becoming like that.

A horizontal shelf frame 1 serving as a base has three vertically elongated stages spaced vertically at a predetermined interval, and is supported by a plurality of common supporting members 2, 2, 2... be.

A large number of roller groups 3, 3 are arranged horizontally in parallel over the entire length at intervals in the longitudinal direction on both sides of each shelf frame 1 in the width direction, and pallets 4 loaded with cargo are movably placed thereon. .

The pallet 4 is configured to have the cargo L placed thereon and to be conveyed astride roller groups 3, 3 on both sides, and to be moved forward by hooking the tip of the pallet hook 10 in an upright state onto a horizontal member 4a.

The transport vehicle 5 is located between both roller groups 3, 3, and includes a frame 6 having a hat-shaped steel cross section, a plurality of axles 7, 7 provided at intervals in the longitudinal direction of the frame 6, and Wheels 8, 8 attached to both ends of the axles 7, 7, the roller group 3,
The shelf frame 1 is lower in height than the shelf frame 3, and can freely run while being guided straight within the groove of the channel steel 9 fixed along the longitudinal direction of each shelf frame 1.

In FIG. 3, the pallet hook 10 has a trapezoidal profile with hypotenuses at right angles to each other,
The pallets are pivoted to the frame 6 of the transport vehicle 5 at predetermined intervals in the longitudinal direction, and the distance between adjacent pallets is 2, which is the length of the pallet 4, and the pallets are in a free state. When it becomes upright due to its own weight and the end surface including one oblique side of the trapezoidal contour becomes vertical, the tip 1 moves upward from the top surface of the roller groups 3 and 3.
0a protrudes, and the end surface 10c including the other oblique side of the rear end 10b comes into contact with the bottom surface 6a of the frame 6, making it impossible to rotate further clockwise in FIG. Only rotation to is possible.

The pressing plate 12 has a plurality of openings 12a provided at intervals corresponding to predetermined intervals of the pallet hook 10.
The distance between the openings 12a is determined to be two equal to the length of the pallet 4, and the pallet 4 is slidably placed on a pin 11 provided on the carrier 5.
When the transport vehicle 5 moves forward, the opening 12a faces the pallet hook 10 to set the pallet hook 10 in a free state, and when the transport vehicle 5 moves backward, the opening 12a faces the pallet hook 10.
The other parts face the palette hook 10 and push down the palette hook 10 to make it lie down.

The push piece 13 is lower in height than the roller groups 3, 3 and is located on the cargo entry/exit end side 1b of the shelf frame 1.
It is guided in the longitudinal direction by wide groove steel 18 and is movable.

The forward-driving tension member 14 has one end connected to the tip of the transport vehicle, passes through guide pulleys 15a and 15b, is wound around a pulley 15 as a winding tool, makes a U-turn at the cargo entry/exit end 1b of the shelf frame 1, and then It passes through a guide pulley 15c, a slit-shaped notch 18a provided at the center of the wide groove steel 18 in the width direction, and is connected to the pusher piece 13 at the other end.

As shown in FIGS. 5 and 6, the tension spring 16 serving as a biasing member is disposed along the longitudinal direction between the frame 6 and the channel steel 9, and has one end connected to the carrier 5. , the other end is connected to a predetermined location of the channel steel 9 to urge the carrier 5 in the backward direction,
Normally, the rear ends of the carrier vehicle 5 and the press plate 12 are brought into contact with the end plate 9a of the channel steel 9.

The suction part 17 has a permanent magnet (see FIGS. 5 and 6) fixed to the rear end of the pressing plate 12, and the suction force of this permanent magnet causes the rear end plate 9 of the channel steel 9 to
a is sucked, and only the press plate 12 is sucked backward by the reaction force, which has the effect of delaying the forward movement of the press plate 12 with respect to the transport carriage 5.

Next, the operation of the pallet cargo conveying apparatus according to the above embodiment of the present invention will be explained.

5 and 6 are side sectional views showing the operation of the pallet cargo conveying device.

When carrying in the cargo L placed on the pallet 4, as shown in FIG.
With the pallet hook 10 in contact with the end plate 9a of the shelf, the cargo L placed on the pallet 4 is placed on the fork F of the forklift and moved to the cargo entry/exit end 1b of the shelf or the opposite side. Place it on both roller groups 3, 3 from either side. In this state, pull out the fork F, use the fork F to push the cargo L from the outside of the shelf to the back, and move the roller group 3.
After moving the next cargo, the next cargo is brought in in the same way and stored on the shelf. When carrying out the cargo L placed on the pallet 4, as shown in FIG.
3 is pushed in by fork F of a forklift, and the forward drive tension member 14 is connected to the pusher piece 13 and the conveyor truck 5, and is made a U-turn by the pulley 15 as a winding tool on the cargo input/output end side 1b of the shelf frame 1. When the carrier 5 is moved forward through the carrier 5, only the pressing plate 12 placed on the carrier 5 and having a plurality of openings 12a provided at intervals corresponding to the predetermined intervals of the pallet hook 10 is moved backward by the suction part 17. The opening 12a faces the pallet hook 10 so that the pallet hook 10 is in a free state, and the tip of the pallet hook 10 in this free state is placed on the pallet 4. Once the cargo is engaged, the cargo is moved forward, and the cargo that has advanced toward the cargo input/output end side 1b is carried out by the fork F. When the pushing of the pusher piece 13 is released and the transport vehicle 5 is moved backward by the tension spring 16 connected to the transport vehicle 5 at one end in the backward direction, as shown in FIG. The part faces the pallet hook 10 and pushes down the pallet hook 10 to make it lie down. From this state, push the push piece 13 deep again with the fork of the forklift, and move the following cargo to the cargo input/output end side 1.
It is possible to advance the cargo to b and carry it out in the same manner as described above, and then repeat the same operation to carry out the cargo one after another.

In addition, the pallet cargo conveyance device according to the present invention is
It is not limited to the above embodiment, and can be applied to general conveyance devices other than shelves, and the shelf frame 1 can be
It is possible to have more than one stage or two stages, a counterweight may be used in place of the tension spring 16 as a biasing member, and the interval between the pallet hooks can be arbitrarily selected without being limited to half the length of the pallet. , and various other modifications are possible.

(Effects of the invention) The present invention is constructed as described above, and includes a vertically long horizontal base and pallets loaded with cargo that are arranged in parallel at intervals in the longitudinal direction on both sides of the base in the width direction and are movable. Since the base is horizontal, there is no need for brake rollers, there is no restriction on the length of the base, and there is a distance between the two roller groups that is shorter than the roller group. A vertically elongated transport vehicle that is low in height and can freely run along the longitudinal direction of the base; and a vertically long transport vehicle that is placed at a predetermined interval in the longitudinal direction and is pivotally supported by the transport vehicle so as to be able to rise and fall, and in a free state, stands upright and faces the top surface of the roller group. A plurality of pallet hooks whose tips protrude further, and a plurality of openings placed on the carrier and provided at intervals corresponding to predetermined intervals of the pallet hooks, the openings facing the pallet hooks when the carrier moves forward. a press plate for freeing the pallet hook; a push piece that is lower in height than the roller group and is provided on the cargo input/output end side of the base and is movable in the longitudinal direction of the base; A forward drive tensioning member that connects the pieces to the transport vehicle, a winding tool that makes a U-turn on the forward drive tension member at the cargo inlet/output end side of the base, and only the pressing plate are sucked rearward to the transport vehicle. On the other hand, by providing a suction section that delays the forward movement of the pressing plate, cargo can be easily and reliably carried out. When the transport vehicle is retreated, a portion of the pressing plate other than the opening faces the pallet hook, and the pallet hook is pushed down and laid down, thereby allowing cargo to be carried in from both sides of the base. It has the advantage of being convenient and saving space.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the overall appearance of a storage shelf using a pallet cargo transport device according to an embodiment of the present invention, Fig. 2 is a plan view showing the main parts of the same, and Fig. 3 is a partially enlarged view of the transport device. FIG. 4 is a side sectional view taken along the line X--X in FIG. 3, and FIGS. 5 and 6 are side sectional views showing the operation of the pallet cargo conveying device. DESCRIPTION OF SYMBOLS 1...Horizontal shelf frame, 1a...Horizontal member, 1b...Cargo loading/unloading end side, 2...Supporting member, 3...Roller group, 4...Pallet, 5...Transportation cart, 6...Frame, 7... Axle, 8... Wheel, 9... Channel steel, 9a... End plate, 10... Pallet hook, 1
0a...Tip, 11...Pin, 12...Press plate,
12a...Opening, 13...Push piece, 14...
Forward drive tension member, 15... pulley, 16... tension spring, 17... suction section.

Claims (1)

[Scope of utility model registration request] A vertically long horizontal base, a group of rollers arranged in parallel at intervals in the longitudinal direction on both sides of the base in the width direction and on which a pallet carrying cargo is movably placed, and between the two roller groups. a vertically elongated transport vehicle that is lower in height than the roller group and is movable along the longitudinal direction of the base; and a vertically elongated transport vehicle that is spaced at a predetermined interval in the longitudinal direction and pivoted to the transport vehicle so as to be able to rise and fall in a free state. and a plurality of pallet hooks whose tips protrude from the upper surface of the roller group, and a plurality of openings placed on the conveyance vehicle and provided at intervals corresponding to predetermined intervals of the pallet hooks, and the pallet hooks are disposed at intervals corresponding to predetermined intervals of the pallet hooks when the conveyance vehicle moves forward. a pressing plate having an opening facing the pallet hook to set the pallet hook in a free state, and a portion other than the opening facing the pallet hook when the conveyance vehicle retreats to press down the pallet hook to make it lie down; a pusher piece that is low in height and is provided on the cargo input/output end side of the base and is movable in the longitudinal direction of the base; a forward driving tension member that connects the pusher piece and the carrier; and the base a winding device that makes a U-turn on the forward driving tension member at the cargo input/output end side of the cargo input/output end; a biasing member having one end connected to the carrier vehicle and urging the carrier vehicle in a backward direction; and a biasing member that forces only the pressure plate backward A pallet cargo conveying device comprising: a suction section that performs suction and delays the advancement of the pressing plate with respect to the conveying truck.