JPH10238154A - Article storing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contract a storing space, and to stabilize a conveyance means by preventing displacement in the vertical direction only by conducting expansion and contraction operation in the horizontal direction in a pair of sliding forks and applying the load of both sliding forks to storing shelves when an article such as a car is delivered among the conveyance means and the shelves. SOLUTION: Rollers 75 supporting the underside of a pallet P are arranged in a freely rolling manner at regular intervals in the expansion and contraction direction of a sliding fork 32 and at diagonal places so that parts of the rollers 75 are projected from the top face of a top fork 37 on the top face of the top fork 37 of the sliding fork 32. When a car is delivered from a lifting- lowering base to a storing shelf 3, the underside of the pallet P is made slightly higher than the pallet base surface 3b of the storing shelf 3 by the elongation operation of both sliding forks 32, on which the car is loaded together with the pallet P, and a distance S is formed between the underside of the pallet P and the pallet base surface 3b, and support to each roller 75 of each receiving member 79 is released by the contraction operation of both sliding forks 32 in an operation posture to the control place of a movable stopper 59, and the car is delivered to the storing shelf 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an article storage device, and more particularly, to an article pallet or an empty pallet, which is laterally fed between a conveying means and a storage shelf by a pair of slide forks to expand and contract. The present invention relates to an article storage device to be delivered.

[0002]

2. Description of the Related Art As such an article storage device,
In the state where the elevator as a transport means is stopped at the side of the upper and lower multi-stage storage shelves, the vehicle mounting level of the slide fork is displaced between the upper position and the lower position of the storage shelf. An elevator type multi-story parking device provided with a positioning device for positioning the vehicle in two stages has been developed and filed (see JP-A-8-310608).

In this positioning apparatus, an engaging member is provided on one of a lift table and a storage shelf, and a guide member having a continuous two-step guide groove is provided on one of the other of the lift table and the storage shelf. The elevator is displaced vertically in two stages by engaging one of the engagement member and the guide member with the other in accordance with the amount of advance of the fluid pressure cylinder as the advance / retreat driving means. It is configured as follows.

[0004] Specifically, when a vehicle is paid out from the elevator to the storage shelf, first, the vehicle is mounted on a pair of slide forks of the elevator together with the pallet, and the side of the storage shelf intended for the elevator is used. And stopped. Next, the positioning device is driven to engage the engagement member and the guide member, and the vehicle mounting level of the two slide forks is displaced to a position slightly higher than the storage shelf to position the elevator. Thereafter, the slide forks are horizontally extended toward the storage shelf, and the vehicle is moved to the storage space of the storage shelf together with the pallet. Thereafter, the positioning device is driven to switch the engagement between the engaging member and the guide member, and the vehicle mounting level of the two slide forks is displaced slightly below the storage shelf to position the lift table. As a result, the vehicle is transferred from both slide forks to the storage shelf along with the pallet and stored. Thereafter, both slide forks are horizontally contracted toward the elevator, and the payout of the vehicle is completed.

On the other hand, when the vehicle is pulled from the storage shelf to the elevator, first, the empty elevator is transported to the side of the intended storage shelf and stopped. Next, the positioning device is driven to engage the engaging member and the guide member, and the vehicle mounting level of the two slide forks is displaced slightly below the storage shelf to position the elevator. Thereafter, the two slide forks are horizontally extended toward the storage shelf to prepare the vehicle pallets stored in the storage shelf.
Thereafter, the positioning device is driven to switch the engagement between the engaging member and the guide member, and the vehicle mounting level of the two slide forks is displaced to a position slightly higher than the storage shelf to position the lift table. As a result, the vehicle is transferred from the storage shelf to the slide forks together with the pallet.
Thereafter, both slide forks are horizontally contracted toward the elevator, and the vehicle is completely retracted.

[0006]

However, in the elevator-type multi-story parking device described above, the relative level difference between the pair of slide forks and the storage shelf is used at the time of delivery of the vehicle. Problems arise.

The storage space of the storage shelf must be increased in the vertical direction in consideration of the amount of displacement of the slide forks in the vertical direction.

Since the entire lifting platform is displaced in two stages in the vertical direction by the positioning device, a large difference occurs between the tensions of the wire ropes for suspending and supporting the four corners of the lifting platform before and after the change, and the wire ropes and the sheaves are different from each other. A slip occurs in the middle, and the four-point level of the platform is deviated, and the platform becomes unstable.

When both slide forks are extended while mounted on the vehicle, a very large overturning moment acts on the entire lifting platform, so that the positioning device is made quite sturdy and a fluid pressure cylinder as the forward / backward drive means is provided. Requires strong propulsion, which increases the production cost. Also, the slide fork itself needs to be robust so as not to bend, and is large and heavy.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce the storage space of a storage shelf and stabilize transport means such as an elevating table.
Another object is to reduce the manufacturing cost.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for transferring a pair of slide forks in a horizontal direction when transferring an article such as a vehicle between a conveying means and a storage shelf. In this case, the slide forks are not displaced in the vertical direction, and in addition, the loads of both slide forks are applied to the storage shelf.

More specifically, the present invention has a transport path extending in the vertical direction and a pair of slide forks that can be expanded and contracted in the horizontal direction. A transport unit for transporting along the transport path, and a storage shelf provided on the side of the transport path, wherein when loading and unloading articles, the transport unit is stopped on the side of the storage shelf, The present invention is directed to an article storage device in which articles are transferred between pallets or empty pallets between a conveying means and a storage shelf by extension and contraction of a fork,
The following solution was taken.

That is, a first solution of the present invention is to provide a pair of support members for supporting the lower surface of the pallet on the upper surface of each of the slide forks at predetermined intervals in the fork expansion and contraction direction. Further, when the pallet is mounted on both slide forks, a pair of receiving members supported by the respective support members are provided in a pair near the opposite ends of the lower surface of the pallet. In addition, a movable stopper operable between a restricting position for restricting the movement of the pallet to the transport path side and a retracting position for allowing the pallet to move to the transport path side while the pallet is stored is provided on the storage shelf. . Then, at the time of delivery from the conveying means to the storage shelf, the lower surface of the pallet is positioned slightly higher than the pallet mounting surface of the storage shelf, and In the operating posture of the stopper to the regulating position, the contraction operation of the two slide forks releases the supporting state of the receiving members to the supporting members, and delivers the articles together with the pallets or the empty pallets to the storage shelves while storing the articles. At the time of delivery from the shelf to the transport means, the receiving members are pushed up by the support members by the extension operation of the two slide forks, and the article is supported together with the pallet or the empty pallet from below by the two slide forks. Is positioned slightly higher than the pallet mounting surface of the storage shelf, and the movable stopper moves to the retracted position. The by contraction operation of both the slide fork, characterized in that to pass to the transport means pallet or per empty pallet goods in.

With the above arrangement, in the first solution of the present invention, the lower surfaces of the pallets on the two slide forks are higher than the pallet mounting surface of the storage shelf in a state where both slide forks extend horizontally toward the storage shelf. Is positioned slightly higher,
Both do not interfere. In this state, when the movable stopper is moved to the regulation position and the slide forks are contracted horizontally, the movement of the article mounting pallet or the empty pallet is regulated by the movable stopper, and the pallet does not move on the spot. Returns to the transport means, and the article-loaded pallet or empty pallet is paid out to the storage shelf.
On the other hand, when the movable stopper is operated to the retracted position and the two slide forks are horizontally contracted, the movement of the article mounting pallet or the empty pallet is not restricted by the movable stopper, and the pallet is moved along with the contraction operation of the two slide forks. It is drawn into the transport means.

As described above, when an article-loaded pallet or an empty pallet is transferred between the transporting means and the storage shelf, the two slide forks only expand and contract in the horizontal direction and do not displace in the vertical direction. It is not necessary to consider the amount of vertical displacement of both slide forks as the storage space, and the storage space of the storage shelf can be saved accordingly.

The fact that the two slide forks are not displaced in the vertical direction means that the transport means provided with the two slide forks is not displaced in the vertical direction. For example, the transport means is an elevator type multi-story parking device. In the case of the lifting platform, even if the lifting platform is positioned on the side of the storage shelf, the lifting platform is not displaced in the vertical direction, so that the tension of the wire ropes that suspends and supports the four corners of the lifting platform does not change. In addition, the four-point level of the elevator is always constant, and the elevator can be stabilized.

According to a second solution of the present invention, in the first solution, a pair of support members on the upper surface of each slide fork are protruded in a state of being displaced in a horizontal direction orthogonal to the fork expansion and contraction direction. Further, the pair of receiving members on the lower surface of the pallet are provided so as to protrude so as to correspond to the pair of supporting members in a state of being displaced in a horizontal direction orthogonal to the fork extension and contraction direction.

With the above arrangement, according to the second solution of the present invention, the support member at the fork tip side is attached to the receiving member on the pallet conveyance path side on the storage shelf even if both slide forks expand and contract upon delivery of the article. No contact, that is, the receiving member of the pallet does not climb over the support member of the slide fork, and the article-loaded pallet or the empty pallet is stably delivered without rattling in the vertical direction, and the parts are worn by contact. And impact noise are reduced.

According to a third aspect of the present invention, in the first aspect, one of the support members and the receiving members is formed of a roller or a roller which is rotatable in the fork expansion and contraction direction, and the other is a roller. It is characterized by comprising a pair of inclined portions which are inclined obliquely downward, which can be in rolling contact with a roller or a roller, and a flat portion which connects the two inclined portions.

According to the third aspect of the present invention, since each support member and the receiving member are in rolling contact rather than frictional contact, a large driving force is required to extend and retract both slide forks during article transfer. Is not required, and since the rollers or rollers roll on the inclined portion, the delivery operation becomes smooth and the wear of both rollers is minimized.

According to a fourth aspect of the present invention, in the first aspect, the movable stopper is provided on the storage shelf so as to be vertically rotatable, and the upper end of the stopper always projects above the pallet mounting surface of the storage shelf. The pallet is urged by an urging means so as to restrict the movement of the pallet toward the transport path. Further, a slide plate is provided on each slide fork so as to be able to move back and forth in a horizontal direction orthogonal to the fork extension and contraction direction. Then, in the projecting state of the slide plate, by the extension operation of each slide fork, the upper portion of the movable stopper is pressed by the projecting portion of the slide plate, and is rotated downward against the urging force of the urging means. The upper end is immersed below the pallet mounting surface of the storage shelf to allow the pallet to move toward the transport path.

With the above arrangement, according to the fourth solution of the present invention, the movable stopper is provided between the restricting position for restricting the movement of the pallet to the conveying path and the retracting position for permitting the pallet to move to the conveying path. The switching is performed reliably, and the delivery work is performed without any trouble. Further, it is not necessary to provide a drive device for the movable stopper on each storage shelf.

According to a fifth aspect of the present invention, in the first aspect, a locking means for preventing the pallet from moving in the horizontal direction is provided on each slide fork.

According to a sixth aspect of the present invention, in the fifth aspect, the locking means is constituted by an actuator having a telescopic rod which can be vertically extended and contracted. further,
The telescopic rod is extended upward by the extension operation of the actuator to engage with the positioning hole on the pallet side, and is contracted downward by the contraction operation of the actuator to be detached from the positioning hole.

With the above arrangement, in the fifth and sixth solutions of the present invention, the pallet is positioned on both slide forks, and there is no danger of falling from both slide forks.

According to a seventh aspect of the present invention, in the first aspect, a guide roller is arranged on each slide fork so as to be rotatable in the fork extension / retraction direction. Further, a guide rail for guiding and supporting the guide roller from below when the slide forks extend and contract is provided on the storage shelf.

According to an eighth aspect of the present invention, in the first aspect, the guide roller is disposed on the storage shelf so as to be rotatable in the fork extension / contraction direction. Further, each slide fork is provided with a guide rail that is guided and supported from below by the guide roller when each slide fork is extended.

With the above arrangement, according to the seventh and eighth solutions of the present invention, even if both slide forks extend while the article is loaded, the two slide forks are horizontally held by the storage shelf and do not bend. In addition, the overturning moment acting on the entire conveying means is reduced. Therefore, the positioning device and the slide fork need not be particularly durable but can withstand use sufficiently, and the propulsive force of the fluid pressure cylinder as the reciprocating drive means does not need to be particularly large, and thus the production cost is particularly high. Never. Also, both slide forks are small and lightweight and can withstand use sufficiently. In particular, in the seventh solution, the guide roller is provided on the slide fork of the conveying means, so that the guide roller is required for each storage shelf as in the eighth solution. The number is greatly reduced and the cost is reduced.

[0029]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 5 shows an elevator-type multi-story parking device A of a lower-entry type as an article storage device according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 denotes a building, and 2 denotes a plurality of levels of storage space provided in a hierarchical manner on both left and right sides of a space excluding a lower end portion and an upper end portion of the inside of the building 1. A storage shelf 3 is installed, and a pallet P on which a vehicle C as an article is mounted is placed on the storage shelf 3.

Between the storage spaces 2 on the left and right sides,
An elevator hoistway 4 is provided as a transport path extending in the up-down direction, and the storage shelves 3 are arranged on both sides of the elevator hoistway 4 at predetermined intervals in the up-down direction. In the elevator hoistway 4, a lift 6 as a transporting means constituting the elevator 5 is arranged so that its four corners are connected to one end of four wire ropes 7 and suspended so as to be able to go up and down. The elevator 6 is raised to the side of the target storage shelf 3 to transfer the vehicle C to and from the storage shelf 3 together with the pallet P. Reference numeral 8 denotes a driven pulley, 9 denotes a driving pulley driven by a motor (not shown), 10 denotes a balance weight connected to the other end of the wire rope 7, and each driven pulley 8 and the driving pulley 9 are upper ends inside the building 1. The space of the part is set as the machine room 11 and is installed in the machine room 11.

At the lower end of the building 1, there is formed an entrance / exit opening 12 for a vehicle C to enter / exit. On both sides of the entrance / exit opening 12, a vehicle entrance / exit space 13 following the elevator hoistway 4 is provided. ing. A pit 14 is recessed on the floor at the lower end of the elevator hoistway 4.
A turning device 17 in which a turning table 16 is provided on a base body 15
Is installed, and the operation of the turning device 17 causes the turning table 16
The direction of the vehicle C that has entered the upper pallet P is changed by 180 °.

As shown in FIG. 6, the building 1 is made of steel materials such as four pillars 18 standing on the ground and a number of beams 19 bridged horizontally between adjacent pillars 18. Each of the storage shelves 3 includes an assembled steel structure, an exterior panel (not shown) provided outside the steel structure, and the like.
Are horizontally provided on both sides of each storage space 2.
The pallet P is composed of a book shelf rail 3a, and both short side ends of the pallet P are supported from below by the two shelf rails 3a.
Is stored in the storage space 2. FIG.
Reference numeral 20 denotes a shelf to which one end of each shelf rail 3a is attached.

The elevating platform 6 includes an elevating platform main body 23 framed by two vertical frames 21 and two horizontal frames 22. In the middle of the elevating platform main body 23, two A support frame 26 framed by a vertical frame 24 and two horizontal frames 25 is mounted movably upward with respect to the elevator main body 23, and the four corners of the support frame 26 direct the vehicle C by the turning device 17. A receiving portion 27 for mounting and supporting the pallet P between the pallet P and the turning device 17 at the time of conversion is attached. A support frame 28 is attached to both front and rear ends of the lift platform main body 23, one end of each wire rope 7 is connected to both ends of each support frame 28, and the lift platform 6 is suspended and supported by the elevator hoistway 4. I have. As also shown in FIG.
Guide rollers 29 are supported by brackets 30 at both ends of each support frame 28.
Numeral 9 engages with the flange 20a of the H-section steel, which is each of the shelf columns 20, and rolls the flange 20a in the vertical direction as the elevator 6 moves up and down. At the front end (lower end in FIG. 6) of the elevator platform main body 23 on the vehicle entry / exit side, an entry / exit deck 31 for a vehicle C and a person to enter / exit is provided.

A plate-like engagement guide member 55 having an engagement groove 55a is mounted on each of the two shelves 20 on the side of each of the storage shelves 3 one by one corresponding to each of the storage shelves 3. A hydraulic cylinder 54 having a piston rod 54a extending horizontally on the side of the storage shelf 3 is installed at each end of the two front and rear support frames 28 of the table 6, and a front end of the piston rod 54a of the hydraulic cylinder 54 is A mating pin 51 is attached. A positioning device 57 is constituted by the engagement pin 51, the engagement guide member 55, and the fluid pressure cylinder 54. In a state in which the elevator 6 is stopped at the side of the storage shelf 3, the four corners of the elevator 6 As shown in FIG. 7, the lifting table 6 is moved to the storage shelf 3 by causing the engaging pin 51 to advance by the synchronized extending operation of each hydraulic cylinder 54 and engaging with the engaging groove 55 a of the engaging guide member 55. They are positioned sideways.

A pair of slide forks 32 that can be extended and contracted in the horizontal direction are installed inside the two support frames 28, 28 of the elevator 6 (elevator main body 23). Pallet P with vehicle C
Each elevator or an empty pallet P is mounted on the elevator hoistway 4.

As shown in FIGS. 1, 6, and 7, each of the slide forks 32 includes a base fork 33 fixed to the vertical frame 21 of the lift base body 23. Two L-shaped base frames 33a are connected by a flat plate 33b, and a plurality of guide rollers 34, 35 are rotatable at predetermined intervals outside each of the base forks 33a. Attached to.

A middle fork 36 is movably supported by the base fork 33.
Is formed by connecting two substantially H-shaped middle frames 36a arranged in parallel with a flat plate 36b, and guiding the two middle frames 36a to the guide rollers 34, 35 of the base fork 33. The base fork 33 advances and retreats.

On the middle fork 36, a top fork 37 on which a vehicle-mounted pallet P or an empty pallet P is mounted is movably supported. The top fork 37 is provided with two substantially U-shaped tops arranged in parallel. A frame 37a is connected by a flat plate 37b serving as a mounting plate, and a plurality of guide rollers 3 are provided inside the both sides of the top frames 37a in the same manner as the base plate 33a.
4, 35 are mounted to be able to roll freely with a predetermined interval,
The reciprocating operation of the top fork 37 with respect to the middle fork 36 is guided by the guide rollers 34 and 35.

As shown in FIG. 8, three sprockets 38, 39, 40 are provided on the back side of each of the base forks 33.
A chain 41 is wound around each of the sprockets 38, 39, and 40. Both ends of the chain 41 are connected to front and rear ends of the middle fork 36, respectively. Two sprockets 42 and 43 are arranged on the back side of the middle fork 36, and a chain 44 is wound around the sprocket 42 on the tip side, and both ends of the chain 44 are connected to the base fork 33 and the top fork 37. While each is connected to the base end of
Another chain 4 is also provided on the other sprocket 43 on the proximal side.
5, and one end of the chain 45 is connected to the tips of the base fork 33 and the top fork 37, respectively.

Both ends of a shaft 46 are connected to the sprockets 38 of the pair of base forks 33, and a driven sprocket 47 is attached to the shaft 46. Output shaft 4
A drive motor 48 having a drive sprocket 49 attached to 8a is installed, and an endless chain 50 is wound around the drive sprocket 49 and the driven sprocket 47. At the time of loading and unloading, the elevator 6 is moved to the storage shelf 3.
The middle fork 36 and the top fork 37 are moved to one side of the storage shelves 3 on both sides by stopping the side fork and running the three chains 41, 44, 45 by forward and reverse rotation of the drive motor 48. With this reciprocating operation, that is, the extension and retraction operation of both slide forks 32,
The pallets P or empty pallets P are fed sideways between the elevator 6 and the storage shelves 3 with the vehicle C turned sideways with the pallet long sides facing the storage shelves 3.

As shown in FIG. 1, an engaging portion 59a is provided at the upper end near the center in the transfer direction of each shelf rail 3a of the storage shelf 3.
A movable stopper 59 having a movable stopper 59
Is connected to the shelf rail 3a by a coil spring 61 as an urging means. When the pallet P is stored in the storage shelf 3, the movable stopper 59 controls the movement of the pallet P toward the elevator hoistway 4, and the movement of the pallet P toward the elevator hoistway 4. Operable between the evacuation position and the evacuation position. That is, in the movable stopper 59, the locking portion 59a, which is the upper end of the stopper, always projects above the pallet mounting surface 3b, which is the upper surface of each shelf rail 3a of the storage shelf 3, by the spring force of the coil spring 61, and the pallet P
The locking portion 59a is provided at the corner of the vertical surface p4 of the back surface concave portion p3 constituting the central rising portion p2 between the two wheel entry portions p1 and p1.
From the elevator hoistway 4 side to restrict the movement of the pallet P to the elevator hoistway 4 side. Contrary to this, the movement of the pallet P toward the back of the storage shelf 3 is restricted by the shelf rail 3 as shown in FIGS.
a The fixing stopper 3c protrudes upward from the end on the back side.

On the other hand, in the middle of the upper surface of the top fork 37 of each slide fork 32, a slide plate 70
Are arranged so as to be able to move in and out of a horizontal direction orthogonal to the fork extension and contraction state in a state where the two are held upward by two pressing plates 71. One of the top forks 37 (inside)
A slide motor 72 is mounted on the top frame 37a, and an output shaft of the slide motor 72 is connected to a horizontal arm 73 having an engagement pin 73a at the tip. The engagement pin 73a of the horizontal arm 73 is connected to the slide plate. 70
Is movably engaged with the elongated hole 70a formed in the hole.
Then, the horizontal arm 73 is turned by 180 ° by the activation of the slide motor 72, and the slide plate 70 is projected to the side of the top fork 37 in a direction orthogonal to the fork extension / retraction direction. , The upper portion of the movable stopper 59 is pressed by the protruding portion of the slide plate 70 and rotated downward against the spring force of the coil spring 61, and the locking piece 59 a is placed on the pallet of the storage shelf 3. The pallet P is sunk below the surface 3b to allow the pallet P to move toward the elevator hoistway 4 side.

On the side of the slide motor 72 of the top fork 37, an actuator (a fluid pressure cylinder 74 in this example) as locking means for preventing the pallet P from moving in the horizontal direction is provided in parallel. 74
Has a telescopic rod 74a that can be extended and contracted in the vertical direction, and the telescopic rod 74a penetrates a long hole 70b formed in the slide plate 70. The reason why the telescopic rod 74a is penetrated through the elongated hole 70b is to allow the slide plate 70 to move. The telescopic rod 74a extends upward by the extension operation of the fluid pressure cylinder 74, and is positioned with a positioning hole 76a (see FIGS. 2 and 3) formed in a reinforcing plate 76 that reinforces the central rising portion p2 of the pallet P from the back side. And FIG. 4), while contracting downward by the contraction operation of the fluid pressure cylinder 74, and detaching from the positioning hole 76a.

A feature of the present invention is that a pair of rollers 75 as a pair of support members for supporting the lower surface of the pallet P are rotatable on the upper surface of the top fork 37 of each of the slide forks 32 at predetermined intervals in the fork expansion and contraction direction. And a portion thereof is arranged to protrude from the upper surface of the top fork 37. In addition, the pair of rollers 75 are protruded at diagonal positions on the upper surface of the top fork 37 in a state of being displaced in a horizontal direction perpendicular to the fork extension / contraction direction.

On the other hand, as shown in FIG.
A pair of receiving members 79 each consisting of a pair of plates supported by each of the rollers 75 when the pallet P is mounted on the slide forks 32 is provided near each of both short sides of the lower surface of the two wheel entry portions p1. As shown in FIGS. 3, 4 and 7, each receiving member 79 is provided with a pair of front and rear inclined portions 79 a which can be rolled and contact with the roller 75 and which is inclined obliquely downward. 79a, and a flat portion 79b that connects the two. Each of the pair of receiving members 79 is provided at a diagonal position so as to correspond to the pair of rollers 75 and is displaced in a horizontal direction orthogonal to the fork extension / contraction direction. Therefore, the pallet P
Is supported by both slide forks 32, the lower surface of the pallet P is positioned slightly higher than the pallet mounting surface 3b of the storage shelf 3. In addition, contrary to this example,
Receiving member 7 made of a plate on slide fork 32 side
The roller 9 may be provided with a roller 75 on the pallet P side, or the roller 75 may be used as a supporting member instead of the roller 75.

Then, when the vehicle C is transferred from the elevator 6 to the storage shelf 3, the lower surface of the pallet P is placed on the storage shelf 3 by the extension operation of the slide forks 32 carrying the pallets P or the empty pallets P. Each of the receiving members 7 is positioned slightly higher than the surface 3b, with a distance S therebetween, and by the contraction operation of the slide forks 32 in the operating posture of the movable stopper 59 to the restricted position.
9 is released from the support state of the rollers 75, and the vehicle C is transferred with the pallets P or the empty pallets P to the storage shelves 3. On the other hand, when the vehicle C is transferred from the storage shelves 3 to the elevating platform 6, the two slide forks 32 extend. By operation, each receiving member 79 is pushed upward by each roller 75 to support the vehicle C together with the pallet P or the empty pallet P from below with the two slide forks 32, and the lower surface of the pallet P is placed on the pallet of the storage shelf 3. Positioning the vehicle C slightly higher than the surface 3b, leaving a distance S between the two, and moving the vehicle C together with the pallet P or the empty pallet P by the contraction operation of the two slide forks 32 in the operating posture of the movable stopper 59 to the retracted position. It is delivered to the lift 6.

Next, the procedure for loading and unloading the vehicle C in the elevator-type multi-story parking facility A configured as described above will be described with reference to FIG.
This will be described with reference to FIG.

<Incoming> The incoming vehicle C entering the vehicle entrance / exit space 13 from the entrance / exit port 12 gets on the empty pallet P on the elevator 6 of the elevator 5 waiting to descend and can exit in preparation for exiting, that is, exiting forward. The vehicle C is activated by the operation of the vehicle turning device 17.
Is changed by 180 °. In this state, the incoming vehicle C is driven by both slide forks 32, that is, both top forks 3
The pallet P is mounted on the plate 37b of No.7.
Specifically, each receiving member 79 of the pallet P rides on the roller 75 of each top fork 37 and is supported.
Further, the hydraulic cylinders 74 installed on the respective top forks 37 are operating to extend, and the telescopic rods 74a extend upward so that the positioning holes 7 in the reinforcing plate 76 of the pallet P are extended.
6a to restrict the horizontal movement of the pallet P. The slide motor 72 installed on each top fork 37 rotates the horizontal arm 73 in the fork extension / retraction direction to retract the slide plate 70, and when the slide plate 70 is extended, the movable stopper 59 is moved.
To avoid interference. The four engagement guide members 55 provided at the four corners of the lift 6 are retracted so as not to interfere with the rollers 51 on the storage shelf 3 side.

The elevator 6 is lifted to the side of the storage shelf 3 to be stored and stopped (FIG. 3A).
reference). In this state, the lower surface of the in-vehicle pallet P is positioned slightly above the pallet mounting surface 3b of the storage shelf 3 (shelf rail 3a) at a distance S, and does not interfere with the pallet mounting surface 3b when the fork is extended. Like that. On the other hand, the movable stopper 59 of the storage shelf 3 holds the locking portion 59a in a posture inclined toward the rear side of the storage shelf 3 by the spring force of the coil spring 61, and the pallet mounting surface 3 of the shelf rail 3a.
b.

The hydraulic cylinders 54 of the four positioning devices 57 are extended in synchronization with each other, and the four engagement pins 5
1 is advanced to the storage shelves 3 on both sides, and the respective engagement pins 51 are engaged with the engagement grooves 55 a of the respective engagement guide members 55. As a result, the elevator 6 is stably and horizontally positioned from four directions by the four positioning devices 57.

The two slide forks 32 are extended by the activation of the drive motor 48, and the lateral movement of the vehicle pallet P to the storage space 2 is started (see FIG. 3B). At this time, the in-vehicle pallet P does not interfere with the pallet placing surface 3b since the distance S is spaced upward from the pallet placing surface 3b of the shelf rail 3a as described above.

When the in-vehicle pallet P moves laterally to almost the middle of the storage space 2, the in-vehicle pallet P hits the movable stopper 59 and pushes the movable stopper 59 downward against the spring force of the coil spring 61 (FIG. 3
(C)).

When the in-vehicle pallet P moves laterally to the delivery position of the storage space 2, the pressing of the movable stopper 59 is released, and the movable stopper 59 projects upward by the spring force of the coil spring 61, and the locking portion 59
a engages with the corner of the vertical surface p4 of the central rising portion p2 of the in-vehicle pallet P. Thereby, the movement of the on-board pallet P toward the elevator hoistway 4 is restricted and the pallet P does not fall (FIG. 3).
(D)). At the same time, the hydraulic cylinders 74 installed on each top fork 37 are contracted, and the telescopic rods 74a are contracted downward to be separated from the positioning holes 76a of the reinforcing plate 76 of the pallet P.

The slide forks 32 are contracted by the activation of the drive motor 48. As a result, the roller 75 of each top fork 37 is attached to the receiving member 7 of the pallet P mounted on the vehicle.
9, the in-vehicle pallet P is stored in the storage shelf 3 (shelf rail 3
The delivery of the incoming vehicle C is completed by being transferred to the pallet mounting surface 3b of (a) (see FIG. 3 (e)).

The hydraulic cylinders 54 of the four positioning devices 57 are contracted in synchronization with each other, and the four engagement pins 5
1 are retracted from the storage shelves 3 on both sides, and the respective engagement pins 51
Are disengaged from the engagement grooves 55a of the engagement guide members 55, and the positioning of the lift 6 is released. Subsequently, when there is a warehouse, the empty pallet P is prepared, and then the elevator 6 is lowered to the side of the vehicle entrance / exit space 13. It is moved up and down to the side of the stored storage shelf 3.

<Discharge> The empty lift 6 is raised to the side of the storage shelf 3 of the storage space 2 where the discharge vehicle C is stored, and stopped (see FIG. 4A). At this time, the fluid pressure cylinder 74 installed on each top fork 37 is contracting, so that the telescopic rod 74a does not interfere with the pallet P when the fork is extended. Further, the slide motor 72 installed on each top fork 37 moves the horizontal arm 73 to 18
The slide plate 70 is turned by 0 ° to protrude, and the slide plate 70 interferes with the movable stopper 59 when the fork is extended. The hatching of the slide plate 70 in FIG. 4 indicates that the slide plate 70 is in a protruding state. The four engagement guide members 55 provided at the four corners of the lift 6 are retracted so as not to interfere with the rollers 51 on the storage shelf 3 side.

On the other hand, the movable stopper 59 of the storage shelf 3
The locking portion 59a is projected upward from the pallet mounting surface 3b of the shelf rail 3a in a posture inclined toward the back side of the storage shelf 3 by the spring force of the coil spring 61, and the vertical surface p4 of the central rising portion p2 of the pallet P. The corners are engaged from the elevator hoistway 4 side to prevent the pallet P from falling.

The hydraulic cylinders 54 of the four positioning devices 57 are extended in synchronization with each other, and the four engagement pins 5
1 is advanced to the storage shelves 3 on both sides, and the respective engagement pins 51 are engaged with the engagement grooves 55 a of the respective engagement guide members 55. As a result, the elevator 6 is stably and horizontally positioned from four directions by the four positioning devices 57.

The two slide forks 32 are extended by the activation of the drive motor 48, and the lateral movement of the vehicle pallet P to the storage space 2 is started (see FIG. 4B). At this time, the telescopic rod 74a passes below the in-vehicle pallet P, but does not interfere with the pallet P because it is in a contracted state.

When the top forks 37 extend to near the delivery position of the storage space 2, the projecting portion of the slide plate 70 hits the upper portion of the movable stopper 59, and the movable stopper 59 is moved downward against the spring force of the coil spring 61. (See FIG. 4C). As a result, the locking portion 59a of the movable stopper 59 is disengaged from the corner of the vertical surface p4 of the center rising portion p2 of the pallet P, and the regulation of the movement of the vehicle-mounted pallet P toward the elevator hoistway 4 is released.

In parallel with this, the rollers 75 of both top forks 37 sink into the receiving members 79 of the pallet P mounted on the vehicle,
The in-vehicle pallet P is scooped up by both top forks 37 and is moved from the storage shelf 3 (shelf rail 3a) to both top forks 3.
Passed to 7.

When the top forks 37 are completely extended to the delivery position of the storage space 2, the hydraulic cylinders 74 installed on each of the top forks 37 are extended, and the telescopic rods 74 a are extended upward to reinforce the pallet P. The pallet P is engaged with the positioning hole 76a of the plate 76 to restrict the horizontal movement of the pallet P.

The two slide forks 32 are contracted by driving the drive motor 48. As a result, the vehicle-mounted pallet P is supported by both top forks 37 and starts to move laterally toward the elevator 6, and the movable stopper 59 starts to rise gradually (see FIG. 4D).

When the slide plate 70 comes off the movable stopper 59 due to the contraction operation of the two slide forks 32, the movable stopper 59 tries to project upward from the shelf rail 3 a by the spring force of the coil spring 61. While the stop portion 59a is in contact with the lower surface of the pallet P, it does not protrude yet (see FIG. 4E).
Project only after passing through the movable stopper 59. Then, when the contraction operation of the two slide forks 32 is completed and the in-vehicle pallet P moves laterally to the elevator 6, the retraction of the retrieval vehicle C is completed.

The hydraulic cylinders 54 of the four positioning devices 57 are contracted in synchronization with each other, and the four engagement pins 5
1 are retracted from the storage shelves 3 on both sides, and the respective engagement pins 51
Is released from the engagement groove 55a of each engagement guide member 55 to release the positioning, and then the elevator 6 is moved to the vehicle entrance / exit space 1
Then, the delivery vehicle C is lowered to the side of No. 3 and left. Subsequently, when there is an outgoing vehicle, the vehicle ascends to the side of the storage shelf 3 in which the target outgoing vehicle C is stored, and unloads the outgoing vehicle C in the above-described manner. After the pallet P is prepared, the incoming vehicle C is mounted in a state where the pallet P is lowered to the side of the vehicle entrance / exit space 13, and the pallet P is received in the manner described in the above <Inbound>.

As described above, in this example, when the in-vehicle pallet P or the empty pallet P is transferred between the elevating platform 6 and the storage shelf 3, only the two slide forks 32 are caused to expand and contract in the horizontal direction to move in the vertical direction. Is prevented from being displaced, so that the amount of vertical displacement of the two slide forks 32 as the storage space 2 of the storage shelf 3 is not required, and the storage space 2 of the storage shelf 3 is saved by that much. be able to.

Also, since the slide forks 32 are not displaced in the vertical direction, the tension of the wire rope 7 that suspends and supports the four corners of the lift 6 does not fluctuate. The table 6 can be stabilized.

Further, since a pair of rollers 75 on the upper surface of each slide fork 32 and a pair of receiving members 79 on the lower surface of the pallet P are both protruded in a state of being displaced in a horizontal direction orthogonal to the fork expansion and contraction direction, the vehicle is provided. Upon delivery,
Even if the two slide forks 32 expand and contract, the roller 75 on the tip end of the fork does not contact the receiving member 79 of the pallet P on the storage shelf 3 on the elevator hoistway 4 side. 32 rollers 75
, And the vehicle-mounted pallet P or empty pallet P can be delivered stably without rattling in the vertical direction.
In addition, it is possible to reduce wear and impact noise of each part due to contact.

In addition, the receiving member 79 provided on the pallet P
Is composed of a flat portion 79b and an inclined portion 79a continuous on both sides thereof, and the roller 75 provided on the slide fork 32 is guided to the flat portion 79b through the inclined portion 79a, so that the contact between the two is frictional contact. Instead, rolling contact is made, and a large driving force is not required to extend and retract the slide forks 32 at the time of vehicle delivery, and since the roller 75 passes through the inclined portion 79a, the delivery operation can be performed smoothly. Wear of both can be reduced as much as possible.

Further, the movable stopper 59 provided on the storage shelf 3 is moved by the extension / retraction operation of the slide fork 32 and the movement of the slide plate 70 upon delivery of the vehicle.
Of the pallet mounting surface 3b
Move the movable stopper 59 to the elevator hoistway 4 of the pallet P
The transfer operation can be performed without any trouble by reliably switching between the restricting position that restricts the movement of the pallet P to the side and the retreat position that allows the pallet P to move to the elevator hoistway 4 side.

Further, a fluid pressure cylinder 74 having a telescopic rod 74a as a locking means (actuator) for preventing the pallet P from moving in the horizontal direction is provided on each slide fork 32, and the telescopic rod 74a is connected to the pallet P side. The pallet P is engaged with the positioning hole 76a.
, The fall of the pallet P from both slide forks 32 can be prevented.

(Embodiment 2) FIG. 9 shows a configuration of a slide fork 32 and a storage shelf 3 in an elevator type multi-story parking device A as an article storage device according to Embodiment 2 of the present invention. In the present example, four guide rollers 77 are arranged at the lower end of one (outer) top frame 37a constituting the top fork 37 of each slide fork 32 so as to roll freely in the fork extension and contraction direction. Rail 3
At the lower end, a guide rail 80 that guides and supports each of the guide rollers 77 from below when the slide forks 32 extend and contracts is projected inward and horizontally, and the guide rollers 77 are attached to the guide rails 80 when the forks extend and retract. The slide forks 32 are guided by rolling along the slide forks 32. Otherwise, the configuration is the same as that of the first embodiment. Therefore, the drawing used in the first embodiment is substituted, and in FIG. 9, the same reference numerals are used for the same portions as those in FIG. 1 used in the first embodiment. And a detailed description thereof will be omitted.

Therefore, in this example, the same operation and effect as those of the first embodiment can be obtained.

In addition, in this embodiment, since the top fork 37 is guided and supported on the guide rail 80 on the storage shelf 3 side by the guide roller 77 in the extended state, both slide forks 32 extend in the vehicle mounted state. However, the two slide forks 32 can be held horizontally on the storage shelf 3 without bending, and the overturning moment acting on the entire lift 6 can be reduced. Therefore, the positioning device 57 and the slide fork 32 do not need to be specially strong to withstand use, and the propulsive force of the fluid pressure cylinder 54 does not need to be particularly large, thereby avoiding a situation in which the production cost is particularly high. can do.
Also, both slide forks 32 are small and lightweight and can be sufficiently used.

(Embodiment 3) FIG. 10 shows an elevator-type multi-story parking device A as an article storage device according to Embodiment 3 of the present invention.
Is shown. In this example, a plurality of guide rollers 78 are arranged on the inner side wall of the shelf rail 3a of each storage shelf 3 so as to be rollable in the fork extension / retraction direction, while one (outer) constituting the top fork 37 of each slide fork 32 is provided. The upper rail 37c of the top frame 37a constitutes a guide rail 37c which is guided and supported by the guide rollers 78 from below when the slide forks 32 are extended.
Each slide fork 32 is guided by rolling along 7c. Otherwise, the configuration is the same as that of the first embodiment. Therefore, the drawing used in the first embodiment is substituted, and the same reference numerals in FIG. 10 denote the same parts as in FIG. 1 used in the first embodiment. And a detailed description thereof will be omitted.

Therefore, in this example, the same operation and effect as those of the second embodiment can be obtained. In addition,
In this example, the guide rollers 78 must be provided for each of the storage shelves 3 and the number thereof becomes enormous. In the second embodiment, the guide rollers 77 are connected to the slide fork 3 of the elevating table 6.
2, the number of guide rollers 77 can be reduced, and the second embodiment is more economical.

In this example, the case where the article storage device is the elevator type multi-story parking device A is shown. However, the present invention can be applied to the case where the traveling carriage travels on the transport path as long as it has a slide fork. Can be done.

[0079]

As described above, according to the present invention,
At the time of transfer from the transport means to the storage shelf, the lower surface of the pallet is positioned slightly higher than the pallet mounting surface of the storage shelf by the extension operation of the pair of slide forks, and the two slide forks are moved in the operating posture to the regulating position of the movable stopper. By the contraction operation of, while delivering the goods to the pallet or the empty pallet to the storage shelf, at the time of delivery from the storage shelf to the transport means,
Due to the extension operation of the two slide forks, the lower surface of the pallet is positioned slightly higher than the pallet mounting surface of the storage shelf, and the article is moved together with the pallet or Empty pallets are transferred to the transport means. Therefore, the two slide forks need not be displaced in the vertical direction only by extending and retracting the two slide forks in the horizontal direction, and the storage space of the storage shelf can be saved by that much, and the transport means is an elevator-type multi-story parking. In the case of a lifting platform of a device, the vertical displacement of the lifting platform is eliminated, the tension fluctuation of the wire ropes hanging and supporting the four corners of the lifting platform is eliminated, and the four-point level of the lifting platform is always kept constant. Can be stabilized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a slide fork and a storage shelf in an elevator multi-story parking device as an article storage device according to a first embodiment.

FIG. 2 is a plan view of a pallet.

3 (a) to 3 (e) are views showing a process of dispensing a pallet to a storage shelf.

FIGS. 4 (a) to 4 (e) are drawing process drawings of a pallet from a storage shelf.

FIG. 5 is a schematic configuration diagram of an elevator-type multi-story parking device.

FIG. 6 is a cross-sectional plan view of the elevator-type multi-story parking device.

FIG. 7 is a side view of the elevator.

FIG. 8 is a perspective view showing a telescopic mechanism of a slide fork.

FIG. 9 is a perspective view showing a configuration of a slide fork and a storage shelf in an elevator-type multi-story parking device as an article storage device according to a second embodiment.

FIG. 10 is a perspective view showing a configuration of a slide fork and a storage shelf in an elevator-type multi-story parking device as an article storage device according to a third embodiment.

[Explanation of symbols]

Reference Signs List 3 Storage shelf 4 Elevator hoistway (transport path) 6 Elevating platform (transport means) 32 Slide fork 37c Top frame upper wall (guide rail) 59 Movable stopper 61 Coil spring (biasing means) 70 Slide plate 74 Fluid pressure cylinder ( Actuator, locking means) 74a Telescopic rod 75 Roller (supporting member) 76a Positioning hole 77 Guide roller 78 Guide roller 79 Receiving member 79a Inclined portion 79b Flat portion 80 Guide rail A Elevator-type three-dimensional parking device (article storage device) C Vehicle (article) ) P pallet

Claims (8)

[Claims] 1. A transport path extending in a vertical direction, and a pair of slide forks extendable and contractible in a horizontal direction.
A transport unit that transports the articles along the transport path with the pallets or empty pallets mounted on the two slide forks; and a storage shelf provided on a side of the transport path. An article storage device in which the transporting means is stopped on the side of the storage shelf, and articles are transferred between the transporting means and the storage shelf by pallets or empty pallets between the transporting means and the storage shelf by the expansion and contraction operations of the slide forks. A pair of support members for supporting the lower surface of the pallet are provided on the upper surface of each slide fork at predetermined intervals in the fork extension direction, and the pallets are mounted on both slide forks near both ends of the lower surface of the pallet. In this case, two pairs of receiving members supported by each of the support members are provided in a pair, and two pairs of the receiving members are provided on the storage shelf. A movable stopper operable between a restricting position for restricting movement and a retracting position for allowing the pallet to move toward the conveying path is provided. The lower surface of the pallet is positioned slightly higher than the pallet mounting surface of the storage shelf by the extension operation of the two slide forks, and the contraction operation of the two slide forks in the operation posture of the movable stopper to the restricted position. While the receiving state of each receiving member is released from each supporting member and the article is delivered to the pallet or the empty pallet to the storage shelf, at the time of delivery from the storage shelf to the transporting means, the extension operation of both slide forks causes the above-mentioned respective items to be moved. The receiving member is pushed up by each support member, and the article is supported from below with the pallet or the empty pallet with the two slide forks. The lower surface of the pallet is positioned slightly higher than the pallet mounting surface of the storage shelf, and the pallets are received together with the pallets or the empty pallets are received by the transfer means by the contraction of the two slide forks in the operating posture of the movable stopper to the retracted position. An article storage device characterized by being handed over. 2. A pair of support members on the upper surface of each slide fork protrude in a state of being displaced in a horizontal direction perpendicular to the fork expansion and contraction direction, and a pair of receiving members on the lower surface of the pallet are connected to the pair of support members. 2. The article storage device according to claim 1, wherein the article storage device is provided so as to correspond to the horizontal direction orthogonal to the fork extension and contraction direction. 3. One of each support member and each receiving member is a roller or a roller that is rotatable in the fork expansion and contraction direction, and the other is a pair of diagonally downwardly inclined rollers that can make rolling contact with the roller or the roller. 2. The article storage device according to claim 1, wherein the article storage device comprises an inclined portion and a flat portion connecting the two inclined portions. 4. A movable stopper is provided on the storage shelf so as to be rotatable in the vertical direction, and the upper end of the stopper always projects above the pallet mounting surface of the storage shelf to regulate the movement of the pallet to the transport path side. In each slide fork, a slide plate is provided on each slide fork so as to be able to retreat and extend in a horizontal direction perpendicular to the fork extension and contraction direction. The upper part of the movable stopper is held down by the protruding part of the slide plate and rotated downward against the urging force of the urging means, and the upper end of the stopper is sunk below the pallet mounting surface of the storage shelf to transport the pallet. 2. The article storage apparatus according to claim 1, wherein the article storage apparatus is configured to allow movement to a road side. 5. The article storage device according to claim 1, wherein each slide fork is provided with locking means for preventing the pallet from moving in the horizontal direction. 6. The locking means is an actuator having a telescopic rod capable of extending and contracting in the vertical direction. The telescopic rod is extended upward by an extension operation of the actuator and engages with a pallet-side positioning hole.
The article storage device according to claim 5, wherein the article is contracted downward by the contraction operation of the actuator and detaches from the positioning hole. 7. A guide roller is provided on each slide fork so as to freely roll in the fork extension / retraction direction, and a storage rail is provided on the storage shelf for guiding and supporting the guide roller from below when each slide fork extends / contracts. The article storage device according to claim 1, wherein: 8. A guide roller is disposed on the storage shelf so as to be rotatable in a fork extending / contracting direction, and each slide fork is provided with a guide rail that is guided and supported by the guide roller from below when the slide fork is extended. The article storage device according to claim 1, further comprising: