JP2001010705A - Storing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent large moment from being applied to a forklift truck for storing an article to be stored and to prevent a carriage carrying an undelivered article from self-advancing when the article stored stored in a previous storage position is taken out. SOLUTION: In this storing device, articles to be stored mounted on a carriage 4 moving on rails 2, 2 are successively stored from one end side in the longitudinal direction of the rails 2, 2 to the other end side, so that, starting from the articles to be stored stored on the one end side, the articles can successively be taken out. In this case, the storing device is provided with a belt-like engaged body 3 stretched along the rails 2, 2 and a motor 7 to which a rolling wheel 71 rolling while engaged with the belt-like body 3 is connected and which is installed in the carriage 4. The motor 7 is installed in the carriage 4, and the motor 7 moves the carriage 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage device for storing a plurality of objects to be stored in a last-in / first-out system.

[0002]

2. Description of the Related Art FIG. 13 is a schematic side view of a conventional storage device. The storage device of the last-in / first-out system includes, for example, a plurality of columns B facing each other at predetermined intervals in the left, right, front and rear directions.
And a plurality of horizontal rails (not shown) erected at predetermined intervals above and below the columns B. A plurality of objects A are stored between the left and right columns B, B in front and rear. A storage section that can be stored is provided. A pair of right and left rails C, C extending in the front and rear storage directions are formed in the storage portion so as to have an ascending gradient from one longitudinal end (front storage position) to the other longitudinal end (rear storage position). The rails C, C have different heights from the wheels to the mounting surface on which the object is placed and the positions of the wheels, and when the rails C move to the one end, they overlap vertically, and the other ends. A plurality of carts D1 and D2 which are in a non-overlapping state when moving to are supported.

The upper bogie D1 is connected to the lower bogie D
The height from the wheel to the mounting surface is higher than that of 2, and the width on the left and right is formed wider. When a set of wheels E... Is provided, and a pair of front and rear wheels F. , Each truck D1,
D2 moves to the one end position by its own weight, and overlaps vertically. In addition, stoppers are provided at the ends on the one end side of the carriages, the stoppers abutting on beams supporting the longitudinal ends of the rails C, C.

When storing the first object A, the first object A supported on the pallet P is lifted by a fork provided on a mast of a forklift H as shown in FIG. In this state, the pallet P is placed on the upper carriage D1 together with the pallet P.

FIG. 14 is a schematic side view showing a state after the second object is stored. When storing the second object A, the second object A lifted by the fork of the forklift H is pressed against the front side surface of the first object A as shown in FIG. While moving the mast H forward, the second object A pushes the first object A together with the upper carriage D1 into the intermediate storage position, and the second object A is moved to the lower carriage D2 which stops at the front storage position. The storage item A is placed together with the pallet P.

FIG. 15 is a schematic side view showing a state after the third object is stored. In addition, the third storage object A
When storing the third storage object A lifted by the fork of the forklift H as shown in FIG.
By pressing the mast of the forklift H forward on the front side of the stored object A, the third stored object A moves the second stored object A together with the lower bogie D2 to the intermediate storage position, and The first storage object A is simultaneously pushed into the rear storage position together with the upper carriage D1, and the third storage object A is placed together with the pallet P on the front storage position of the rails C and C.

When taking out the stored object A stored as described above, the forklift H lifts up the third stored object A at the front storage position. At this time,
Since the rails C and C have an ascending gradient from one end side to the other end side in the longitudinal direction, the bogie D on which the first and second objects A are placed at the intermediate storage position and the rear storage position.
1 and D2 self-propelled to the front storage position side by their own weight.
Then, the stoppers provided on the carts D1 and D2 that have self-propelled to the front storage position abut against the beams that support one longitudinal end of the rails C and C and stop.

[0008]

In the storage device configured as described above, when storing a plurality of objects A, the objects A supported by the forks of the forklift H are stored first. The forklift H is pressed against the front side surface of the storage object A and is stored by being pressed in this pressed state. Therefore, as the storage position is higher, a large moment is applied to the mast supporting the fork of the forklift H, and the forklift H easily falls over due to the moment. The stored object A stored first by the wheel of the forklift H slipping
There was a problem that cannot be pushed.

Further, by taking out the stored object A stored in the front storage position, the carriage on which the stored object A stored first is self-propelled to the front storage position side. When the stopper provided on the carriage comes into contact with the beam supporting one end in the longitudinal direction of the rail, the object A on the carriage is dislodged by the impact generated by the contact, or moves with respect to the carriage. There is a high possibility of falling.

The present invention has been made in view of the above circumstances, and a belt-like meshing member stretched along a rail and a rolling wheel that meshes with the belt-like meshing member and are rolled are connected to each other. With the motor mounted on the rail, the rails can be arranged horizontally, preventing a large moment from being applied to a transport vehicle such as a forklift that transports the items to be stored, and the front storage position. It is an object of the present invention to provide a storage device capable of preventing a carriage on which uncollected objects to be taken are placed from being moved when the objects to be stored are taken out.

A control device for controlling a driving circuit of the motor, a switch capable of switching to at least two positions, and a sensor for detecting the presence of a transporting vehicle for transporting the stored objects, the control device includes: By providing a discriminating means for discriminating the storage / removal of an object to be stored and a driving means for outputting a signal for driving the motor to the drive circuit based on the discrimination result, the storing operation and the unloading operation are easily performed. It is an object of the present invention to provide a storage device that can perform the storage.
Further, by providing the cushioning material at a position facing the band-shaped mesh body, even when the bogie is bent by the load of the object to be stored, it is possible to reduce the force with which the rolling wheel provided on the bogie is pressed against the band-shaped mesh body, It is an object of the present invention to provide a storage device capable of moving a cart satisfactorily. In addition, by providing a plurality of trucks provided with interlocking parts that interlock in a non-overlapping state when moving to the one end side and vertically overlap when moving to the other end side, by providing a motor on the bogie above it. It is another object of the present invention to provide an inexpensive storage device that can reduce the number of parts for moving a plurality of carts. In addition, by moving the upper carriage to the intermediate storage position by tilting the rail at one end in the longitudinal direction downward, when the object is placed on the lower carriage, Even if the lower carriage moves from the front storage position on one end side to the intermediate storage position due to contact with the lower carriage, the above-mentioned contact with the lower carriage is released. It is an object of the present invention to provide an inexpensive storage device capable of automatically returning a lower dolly to its front storage position by its own weight. In addition, the carriage is provided with a catch piece that catches on the rail when moved to one end side to prevent the carriage from lifting, and a stopper that protrudes upward from the end on the side from which the stored object is taken out, so that the front storage position is improved. When the carriage on which the unremoved objects are placed is moved to the front storage position after taking out the objects stored in the container, the objects are pushed out to the unloading side with respect to the carriage. It is an object of the present invention to provide a storage device capable of preventing a bogie from floating on a rail when the object to be stored at a front storage position is taken out by a transport vehicle.

[0012]

According to a first aspect of the present invention, there is provided a storage apparatus for sequentially storing objects to be stored placed on a carriage moving on a rail from one end of the rail in the longitudinal direction to the other end.
In the storage device configured to sequentially take out the stored objects from the one end side, a band-shaped mesh body provided along the rail, and a rolling wheel that meshes with the band-shaped mesh body and rolls are connected, And a motor attached to the cart.

According to the first aspect of the present invention, since the motor provided on the carriage moves the carriage, the rails can be arranged horizontally. Therefore, the objects to be stored can be stored using a carrier such as a forklift. When storing, it is possible to prevent a large moment from being applied to the transport vehicle, and when the object stored in the front storage position is taken out, the bogie on which the untaken object is placed is placed. It is possible to prevent self-propelled operation, and it is possible to prevent the storage object from being dislodged and falling from being stored due to self-propelled movement of the bogie. In addition, since the belt-shaped engagement body is stretched on the rail side and the motor is provided on the carriage, the length of the belt-shaped engagement body can be relatively shortened, and the number of parts for moving the carriage can be reduced, and the storage device can be reduced. Can be provided at low cost.

According to a second aspect of the present invention, there is provided a storage device for controlling a drive circuit of the motor, a switch capable of switching to at least two positions, and a sensor for detecting the presence of a transporting vehicle for transporting the storage object. A control unit that determines storage / removal of an object to be stored based on a switching state of the switch and a detection result detected by the sensor, and controls the drive circuit based on the determined result. And a driving means for outputting a signal for driving the motor to move the stored item to the one end side or the other end side.

In the second invention, after the switch is switched to one position, the sensor detects the presence of the transport vehicle when the transport vehicle enters the detection area of the sensor. The driving of the motor is stopped based on this. Therefore, when the object to be stored is placed on the trolley, even if the object to be stored comes into contact with the trolley, the movement of the trolley can be prevented, and the object to be stored can be easily mounted on the trolley. After the object is placed on the cart, when the carrier exits the detection area, the absence of the carrier is detected, and the motor is driven based on the detection result detected by this sensor. Therefore, after storing the objects to be stored, the front storage position at one end can be automatically emptied, and when storing a plurality of objects to be stored, the storing operation can be easily performed.

After the switch is switched to the other position, when the carrier enters the detection area of the sensor, the switch detects the presence of the carrier, and the motor is driven based on the detection result detected by the sensor. Stopped. Therefore, when taking out an object stored in the front storage position on one end side,
The stored object at the front storage position can be easily taken out without being pressed by the unextracted stored object. After removing the object from the cart, when the carrier exits the detection area, it detects that the carrier is not present, and the motor is driven based on the detection result detected by the sensor, and the intermediate The object to be stored at the storage position can be automatically moved to the front storage position at one end side, and the object to be stored in which a plurality of items are stored can be easily taken out.

A storage device according to a third aspect of the present invention is provided with a support for supporting the band-shaped mesh member, and the support member is provided with a cushioning material at a position facing the band-shaped mesh member.

According to the third aspect of the present invention, even when the bogie is bent downward due to the load of the object to be placed, the rolling wheel provided on the bogie exerts a force against the belt-shaped meshing body. It can be made small and the carriage can be moved well. Therefore, there is no need to make the truck strong enough to prevent bending due to the load of the object to be stored, and the cost of the truck, and thus the cost of the storage device, can be reduced.

A storage device according to a fourth aspect of the present invention includes a plurality of the carts, and the carts have different heights from wheels to a mounting surface on which the object is placed and positions of the wheels.
An interlocking portion is provided that overlaps vertically when moving to the one end side, and interlocks in a non-overlapping state when moving to the other end side, and the motor is provided on a truck on the upper side thereof. .

According to the fourth aspect of the present invention, since one motor moves a plurality of trucks, the number of parts for moving the plurality of trucks can be reduced, and a storage device can be provided at low cost.

The storage device according to a fifth aspect of the present invention is characterized in that the one end of the rail in the longitudinal direction is inclined downward.

According to the fifth aspect of the present invention, a plurality of bogies are used which are provided with interlocking parts which interlock in a non-overlapping state when they move to one end side and overlap when moving to the other end side. In the structure in which the motor is provided on the upper carriage, the object to be stored is placed on the upper carriage, the upper carriage is moved to the intermediate storage position, and then the object to be stored is placed on the lower carriage. When the object to be stored is placed on the lower dolly, the lower dolly may move from the front storage position on one end side to the intermediate storage position due to the abutment on the lower dolly. By releasing the above-mentioned contact with the cart, the lower cart can be automatically returned to the front storage position along the portion inclined by its own weight.

[0023] The carriage of the storage device according to the sixth aspect of the present invention is characterized in that the carriage is engaged with the rail when moved to the one end side to prevent the carriage from floating, and protrudes upward from the end that is the one end side. , And a stopper capable of making contact with the object to be stored.

According to the sixth aspect of the present invention, when an object stored in the front storage position at one end is taken out, the bogie at the intermediate storage position moves to the front storage position due to a malfunction of the motor. Even in the case where the trolley comes into contact with the beam supporting one end of the rail and stops, the stopper can satisfactorily prevent the object on the trolley from moving toward the take-out side with respect to the trolley. At this time, the object to be stored is pressed against the stopper of the cart, and the frictional resistance between the object to be stored and the stopper is increased by this pressing. Although the lifting force is applied to the carriage, the carriage is provided with the hooking pieces, so that the carriage can be properly prevented from floating on the rail, and the carriage can be prevented from coming off.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. Embodiment 1 FIG. 1 is a side view of a storage device, FIG. 2 is a longitudinal rear view of the storage device, and FIG. 3 is a perspective view showing the storage device together with a storage portion.

The storage device according to the present invention comprises a plurality of columns 1 opposed to each other at predetermined intervals in the left and right and front and rear directions, and a plurality of columns 1 erected at predetermined intervals above and below these columns 1. A lower horizontal rail 11, a middle horizontal rail 12, and an upper horizontal rail (not shown) are provided. Is provided with a storage section capable of storing the object A to be stored.

A pair of left and right rails 2, 2 extending in the front and rear storage directions are disposed substantially horizontally above the horizontal rails such as the lower horizontal rail 11 and the middle horizontal rail 12 serving as floors of the storage section. In addition, one band-shaped meshing body 3 using a chain is stretched between the rails 2 and 2 along the rails 2 and 2, and the non-storage of the storage object A is performed on each of the rails 2 and 2. A plurality of carts 4, 4a, which can sometimes overlap vertically, are movably supported. The band-shaped meshing body 3 is supported inside a support body 5 having a concave cross section disposed along the rails 2, 2,
Both ends in the longitudinal direction are fixed to the support 5.

A buffer member 6 is provided on the inner bottom surface of the support 5. The cushioning member 6 includes a natural rubber plate 61 fixed to the inner bottom surface of the support 5 and a urethane rubber plate 62 laminated on the rubber plate 61. are doing.

As shown in FIG. 3, the carts 4 and 4a are rotatably supported by square frames 41 and 41a and four corners of the frames 41 and 41a. , 42a... Which are engaged with each other. These carts 4, 4a have a height from their wheels 42,..., 42a to a mounting surface on which the object A is placed, and the wheels 42,.
42a are different from each other, and are provided with an interlocking portion 45 which is vertically overlapped when moved to the one end side, and is interlocked in a non-overlapping state when moved to the other end side.

The frame 41 of the upper bogie 4 has a rolling wheel 71 at the end on the moving side in the storage direction, which meshes with the band-shaped meshing body 3 and rolls. A motor 7 for moving from one end side to the other end side and from the other end side to the one end side in the direction is attached, and leg pieces 43 are projected from right and left ends of the frame body 41. , 43 via the axles 44, 44, the wheels 42 are pivotally supported. In addition, guide wheels 40, 40 facing the outer surfaces of the rails 2, 2 at appropriate intervals are provided at the lower ends of the leg pieces 43, 43.
Are pivotally supported via the longitudinal axis, and the guide wheels 40, 40
Rails 2 by the amount corresponding to the distance between
The carriage 4 is movable in the width direction of the rails 2 with respect to the rail 2.

The distance between the left and right wheels 42, 42 of the upper truck 4 is made wider than the distance between the left and right wheels 42a, 42a of the lower truck 4a. 2 and 2 are engaged with the widthwise outer portions, and the lower bogie 4
are engaged with the widthwise inner portions of the rails 2 and 2 so as to be vertically overlapped when moved to the one end.

Further, the frame 41a of the lower carriage 4a has
Leg pieces 43a, 43a protrude from the left and right ends, and the wheels 42a are pivotally supported on the leg pieces 43a, 43a via axles 44, 44. The leg pieces 43a, 43a
Guide wheels 40a, 40a facing the inner surfaces of the rails 2, 2 at appropriate intervals are pivotally supported via the longitudinal axis at the lower ends of the guide wheels 40a, 40a and the rails 2, 2.
To the rails 2 and 2 by the amount corresponding to the distance between
a is movable in the width direction of the rails 2 and 2.

The interlocking section 45 forcibly moves the lower carriage 4a in conjunction with the upper carriage 4 in a non-overlapping state when the upper carriage 4 moves to the other end side. A first engagement projection 45a protruding downward at an end serving as one end side, and a first engagement projection 45 protruding upward at an end serving as the other end of the lower carriage 4a; And a second engaging projection 45b opposed to the moving direction of the cart 4a. When the upper cart 4 moves to the other end side (storage direction), the first engaging projection 45a engages in the second engaging projection. The lower carriage 4a is moved in conjunction with the projection 45b.

The motor 7 is mounted on the frame 41 via a bracket 72, and the rolling wheel 71 formed by using a sprocket is provided on the motor shaft thereof. To be moved to

FIG. 4 is an explanatory diagram showing a drive control system of the motor. A control device 9 using a microprocessor is connected to a drive circuit 8 of the motor 7. An input portion of the control device 9 includes a switch 10 that can be switched to one of a storage side, a stop position, and the other position of an unloading side, and a transport vehicle H such as a forklift for transporting the storage object A. Is connected to a sensor 20 for detecting the presence of
The output circuit is connected to the drive circuit 8. The control device 9 is configured to determine storage / removal of the storage object A based on a switching state of the switch 10 and a detection result detected by the sensor 20, and the drive circuit 8 based on the determination result. And driving means for outputting a signal for driving the motor 7 to move the object to the one end or the other end.

FIG. 5 is a schematic side view of a state in which it is stored using a carrier. A forklift H is mainly used as the transport vehicle H for storing and removing the storage object A in the storage device configured as described above. When the storage object A is not stored, the carts 4, 4a are vertically overlapped at one longitudinal end (front storage position) of the rails 2, 2.

FIG. 6 is a schematic side view showing a state in which the first storage object A is stored, and FIG. 7 is an explanatory diagram showing a drive control process of the motor. When storing the first storage object A, the switch 10 is switched from the stop position to one of the storage side positions # 1. When the forklift H loaded with the object A enters the detection area of the sensor 20 (scheduled storage position of the storage device) # 2, a detection signal is output from the sensor 20 and based on the detection result detected by the sensor 20 Then, the driving of the motor 7 is stopped # 3. Therefore, when the object A is placed on the trolley 4, even if the object A comes into contact with the trolley 4, the movement of the trolley 4 can be prevented, and the first storage object supported by the pallet P The object A can be safely placed together with the pallet P on the upper carriage 4 while being lifted by the fork of the forklift H.

FIG. 8 is a schematic side view showing a state after the first storage object A is stored. After this storage is over,
When the forklift H leaves the detection area of the sensor 20, # 4, a detection signal is output from the sensor 20 again,
Based on the detection result detected by the sensor 20, the motor 7
Is driven to # 5, and the upper dolly 4 on which the storage object A is placed
Moves to the intermediate storage position, and the drive of the motor 7 is stopped # 6. At this time, the engaging projections 4 provided on the carts 4 and 4a
5a and 45b do not engage, so the lower carriage 4a is stopped at the front storage position.

Next, when the second object A is stored, the driving of the motor 7 is stopped in the same manner as when the first object A is stored. Further, since the lower carriage 4a is stopped at the front storage position, the second storage object A supported by the pallet P is lifted by the fork of the forklift H and the pallet is moved to the lower carriage 4a. It can be safely placed with P.

FIG. 9 is a schematic side view showing a state after the second storage object A is stored. After this storage is over,
When the forklift H leaves the detection area of the sensor 20, a detection signal is output from the sensor 20 again, and the motor 7 is driven based on the switching state of the switch 10 and the detection result detected by the sensor 20, and The upper cart 4 on which A is placed moves to the rear storage position, and the drive of the motor 7 is stopped. At this time, the engaging protrusions 45a and 45b provided on the carts 4 and 4a engage, and the upper cart 4
, The lower carriage 4a moves to the intermediate storage position, and the front storage position is automatically emptied.

FIG. 10 is a schematic side view showing a state where the third storage object A is stored. When the third storage object A is stored, the carriages 4 and 4a are not in the front storage position and are not stopped, so that the drive of the motor 7 is stopped. Therefore, the third storage object A supported by the pallet P can be safely placed on the rails 2 and 2 at the front storage position while being lifted by the fork of the forklift H.

The articles A stored as described above are sequentially taken out in the order of the third, second and first articles A. When taking out the third storage object A, the switch 20 is switched from one position on the storage side or the stop position to the other position on the extraction side. Empty forklift H is sensor 2
When the vehicle enters the detection area of 0, a detection signal is output from the sensor 20, and the driving of the motor 7 is stopped based on the detection result detected by the sensor 20. Therefore, by inserting the fork of the forklift H into the pallet P in the front storage position, the third storage object A can be safely moved together with the pallet P without being pressed by the unextracted first and second storage objects A. Can be taken out.

After the removal, the forklift H
When the vehicle exits the detection area of the sensor 20, a detection signal is output from the sensor 20 again, the motor 7 is driven based on the detection result detected by the sensor 20, and the first storage object A is placed. The upper trolley 4 moves to the intermediate storage position, and with this movement, the first storage object A pushes the second storage object A, and the lower storage object A on which the second storage object A is placed is placed. The carriage 4a moves to the front storage position, and the driving of the motor 7 is stopped.

Next, when taking out the second object A, the third
The drive of the motor 7 is stopped in the same manner as when the stored object A is taken out. Further, since the lower carriage 4a is stopped at the front storage position, the forklift H is inserted into the pallet P at the front storage position, so that the first untaken first carriage 4a is not taken out.
The second stored object A can be safely taken out together with the pallet P without being pressed by the stored object A.

After the removal, the forklift H
When the vehicle exits the detection area of the sensor 20, a detection signal is output from the sensor 20 again, the motor 7 is driven based on the detection result detected by the sensor 20, and the first storage object A is placed. The upper carriage 4 moves to the front storage position so as to vertically overlap the lower carriage 4a, and the drive of the motor 7 is stopped.

When the first object A is taken out, the drive of the motor 7 is stopped in the same manner as when the third object A is taken out. Therefore, by inserting the fork of the forklift H into the pallet P at the front storage position, the first storage object A can be safely taken out together with the pallet P.

When the object A is placed on the truck 4 as described above, the truck 4 may slightly bend downward with the end of the leg 43 as a fulcrum due to the load of the object A. As a result, the rolling wheel 71 of the motor 7 provided on the carriage 4 presses the band-shaped meshed body 3. In this case, the bogie 4 moves in the width direction of the rails 2, 2 with respect to the rails 2, 2 by an amount corresponding to the amount of backlash generated between the guide wheels 40, 40 of the bogie 4 and the rails 2, 2. At the same time, the belt-shaped meshing body 3 is displaced with respect to the cushioning material 6, and the rolling wheels 71
, The pressing force against the band-shaped engagement body 3 can be reduced,
The carriage 4 can be moved favorably. The cushioning material 6 has a urethane rubber plate 62 on the side in contact with the band-shaped engagement body 3.
Therefore, when the band-shaped engagement body 3 is displaced as described above,
Wear of the cushioning member 6 can be reduced. As described above, since the deflection of the cart 4 can be tolerated, the cart 4 does not need to have a strength that does not cause the deflection due to the load of the object A to be stored. The cost, and thus the cost of the storage device, can be reduced.

Embodiment 2 FIG. 11 is a side view of a storage device. The storage device according to the second embodiment differs from the storage device according to the first embodiment in that the rails 2, 2 are not substantially horizontal from one end to the other end in the longitudinal direction of the rails 2, 2 but are substantially horizontal. The one end side in the longitudinal direction is formed as inclined surfaces 2a, 2a which are inclined downward, and other configurations and operations are the same as those in the first embodiment. Detailed description and operation are omitted.

Rails 2 and 2 in the second embodiment
After the upper carriage 4 is moved to the intermediate storage position, at least the length capable of supporting the lower carriage 4a is inclined at an inclination angle of, for example, about 1/100 to form the inclined surfaces 2a, 2a. When the second object A is placed on the lower carriage 4a, the second object A comes into contact with the lower carriage 4a so that the lower carriage 4a Even if the lower carriage 4a is moved from the front storage position to the intermediate storage position, the lower carriage 4a is moved along the inclined surfaces 2a, 2a by its own weight by releasing the contact with the lower carriage 4a. To automatically return to the front storage position.

Each of the carts 4 and 4a is provided with a pair of carriages 4 and 4a that are caught by the rails 2 and 2 to prevent the carts 4 and 4a from rising when moved to the front storage position at the moving end in the removal direction. And stoppers 47, 47a which protrude upward from the end which is the one end side and which can contact the front surface of the storage object A are provided.

In the second embodiment, the one end of the rails 2, 2 disposed substantially horizontally is the inclined surface 2a, 2a which is inclined downward. After the upper carriage 4 is moved to the intermediate storage position, when the second storage object A is mounted on the lower carriage 4a, the second storage object A is The lower carriage 4a may move from the front storage position on one end side to the intermediate storage position even if the lower carriage 4a comes into contact with the lower carriage 4a. By unraveling, the lower carriage 4a can be automatically returned to the front storage position along the inclined surfaces 2a, 2a by its own weight. Therefore,
When the second storage object A is stored, it can be easily placed on the lower carriage 4a.

FIG. 12 is a schematic side view showing a state after the third storage object A is taken out. First, second and third
The third storage object A is stored in a state where the storage object A is stored.
Is removed, the upper and lower carriages 4 and 4a simultaneously move to the front storage position due to the malfunction of the motor 7, and the lower carriage 4a contacts the beam supporting one end of the rails 2 and 2. Even in the case where a stoppage occurs, the stopper 47a can satisfactorily prevent the object A on the lower carriage 4a from moving toward the take-out side with respect to the carriage 4a.
At this time, the load of the second object A is applied to the stopper 47a, and the contact resistance between the second object A and the stopper 47a increases.

When the second storage object A is taken out in a state where the first and second storage objects A are stored, the upper cart 4 moves to the front storage position side due to the malfunction of the motor 7. Even when the carriage 4 moves and comes into contact with the beam supporting one end of the rails 2 and stops, the object A on the carriage 4 moves to the unloading side with respect to the carriage 4. Can be satisfactorily prevented by the stopper 47. At this time, the load of the first storage object A is applied to the stopper 47,
The contact resistance between the first storage object A and the stopper 47 increases.

Further, by providing the stoppers 47 and 47a as described above, the second
When the first storage object A is taken out by the forklift, the second and first storage objects A having increased contact resistance with the stoppers 47 and 47a are raised above the stoppers 47 and 47a. However, since the hook pieces 46, 46a provided on the carts 4, 4a are hooked on the rails 2, 2, it is possible to prevent the carts 4, 4a from floating on the rails 2, 2 in a favorable manner. , 4a can be prevented from falling off.

In the first and second embodiments described above, the rails 2 and 2 are arranged substantially horizontally.
2 may be inclined from one end side to the other end side so as to have an ascending gradient. Also in this case, since the movements of the carts 4 and 4a are controlled by the motor 7, it is possible to prevent a large moment from being applied to the forklift for storing the storage object A.

Further, in Embodiments 1 and 2, a chain is used as the band-shaped meshing member 3, but other toothed belts and racks may be used.

The storage device according to the present invention has a structure in which three storage objects A are stored in one storage part, and two or four or more storage objects A are stored in one storage part. The structure may be as follows. In the case of storing two objects A, the above-described lower carriage 4a is eliminated. In the case of storing four or more objects A, There are a plurality of the lower carts 4a described above.

[0058]

According to the first aspect of the present invention, as described in detail above, when a motor provided on a truck moves the truck, when the object to be stored is stored using a carrier such as a forklift,
A large moment can be prevented from being applied to the transport vehicle, and when the object stored in the front storage position is taken out, the bogie on which the unoccupied object is placed moves by itself. Can be prevented, and the cargo can be prevented from being dislodged and the stored object from falling due to the self-propelled movement of the bogie. In addition, since the belt-shaped meshing member is stretched on the rail side and the motor is provided on the bogie, the length of the band-shaped meshing member can be relatively shortened, and the structure for moving the bogie can be simplified and inexpensively. Can be provided.

According to the second aspect of the present invention, the front storage position at one end can be automatically emptied after storing the stored objects. It can be done easily. In addition, after taking out an object to be stored, the object to be stored in the intermediate storage position can be automatically moved to the front storage position on one end side, so that the objects to be stored in which a plurality of items are stored can be easily taken out. it can.

According to the third aspect of the present invention, the bogie can be allowed to bend due to the load of the object to be placed. Therefore, it is not necessary to make the bogie strong enough not to bend by the load of the object to be stored. Inexpensive structure with relatively low rigidity,
The cost of the trolley and thus the cost of the storage device can be reduced.

According to the fourth invention, since one motor moves a plurality of carts, the number of parts for moving the plurality of carts can be reduced, and a storage device can be provided at low cost.

According to the fifth aspect of the invention, when the object to be stored is placed on the upper trolley, the upper trolley is moved to the intermediate storage position, and then when the object to be stored is placed on the lower trolley, Even if the object to be stored comes into contact with the lower bogie and the lower bogie moves from the front storage position at one end to the intermediate storage position, the above-described contact with the lower bogie is performed. By releasing the contact, the lower cart can be automatically returned to the front storage position along the portion inclined by its own weight.

According to the sixth aspect, when an object stored in the front storage position on one end side is taken out, the bogie in the intermediate storage position moves to the front storage position due to a malfunction of the motor. Even if a situation arises in which the object comes into contact with a beam or the like that supports one end of the rail and stops, the stopper can prevent the object on the carriage from moving toward the take-out side with respect to the carriage. Also, when the object to be stored is taken out by a carrier such as a forklift while the object to be stored is pressed against the stopper, the bogie can be prevented from floating on the rail, and the bogie can be prevented from coming off. it can.

[Brief description of the drawings]

FIG. 1 is a side view showing Embodiment 1 of a storage device according to the present invention.

FIG. 2 is a vertical sectional rear view showing the first embodiment of the storage device according to the present invention.

FIG. 3 is a perspective view showing the storage device according to the present invention together with a storage unit.

FIG. 4 is an explanatory diagram showing a drive control system of a motor in the storage device according to the present invention.

FIG. 5 is a schematic side view of a storage device according to the present invention in a state where the storage device is stored using a transport vehicle.

FIG. 6 is a schematic side view showing a state where a first storage object is stored in the storage device according to the present invention.

FIG. 7 is an explanatory diagram showing a drive control process of a motor in the storage device according to the present invention.

FIG. 8 is a schematic side view showing a state after the first storage object is stored in the storage device according to the present invention.

FIG. 9 is a schematic side view showing a state after the second storage object is stored in the storage device according to the present invention.

FIG. 10 is a schematic side view showing a state where a third storage object is stored in the storage device according to the present invention.

FIG. 11 is a side view showing Embodiment 2 of the storage device according to the present invention.

FIG. 12 is a schematic side view showing a state after the third storage object is taken out of the storage device according to the present invention.

FIG. 13 is a schematic side view of a conventional storage device.

FIG. 14 is a schematic side view showing a state after the second storage device stores the second storage object.

FIG. 15 is a schematic side view showing a state after the third storage device stores a third storage object.

[Explanation of symbols]

 Reference Signs List 2 Rail 2a Inclined surface 3 Band-shaped meshed body 4, 4a Truck 45 Interlocking part 6 Buffer material 7 Motor 71 Rolling wheel A Stored object

Claims (6)

[Claims] An object to be stored placed on a carriage moving on a rail is sequentially stored from one end to the other end in the longitudinal direction of the rail, and the object to be stored is sequentially taken out from the one end. In the storage device, a belt-shaped meshing body provided along the rail, and a rolling wheel meshed with the band-shaped meshing body and rolling are connected, and a motor attached to the bogie is provided. Characteristic storage device. 2. A control device comprising: a control device for controlling a drive circuit of the motor; a switch capable of switching to at least two positions; and a sensor for detecting the presence of a transport vehicle that transports the storage object. Determining means for determining storage / removal of an object to be stored based on a switching state of the switch and a detection result detected by the sensor; and 2. The storage device according to claim 1, further comprising a driving unit that outputs a signal for driving the motor to move the motor to the other end. 3. The storage device according to claim 1, further comprising a support for supporting the band-shaped mesh body, wherein the support is provided with a cushioning material at a position facing the band-shaped mesh body. 4. The trolley includes a plurality of trolleys,
The height from the wheel to the mounting surface on which the object is placed and the position of the wheel are different, and when moving to the one end side, they vertically overlap, and when moving to the other end side, they interlock in a non-overlapping state. The storage device according to claim 1, wherein an interlocking unit is provided, and the motor is provided on a bogie located above the interlocking unit. 5. The storage device according to claim 1, wherein the one end side of the rail in the longitudinal direction is inclined downward. 6. The carriage is engaged with the rail when the carriage is moved to the one end side to prevent the carriage from lifting, and the carriage protrudes upward from an end serving as the one end side, and is attached to the storage object. 6. The storage device according to claim 5, further comprising a stopper capable of making contact.