JPH05272251A - Pallet shifter for elevator type parking apparatus - Google Patents

Abstract

PURPOSE:To reduce vibrations and noises at a time when a pallet is shifted between the elevating base and parking shelf of an elevator type parking apparatus. CONSTITUTION:A traversing body 35 is installed to an elevating base 7 in a movable-fore-and-aft manner in the direction of shifting of a pallet 12, and a locking means 36 locking and holding the pallet 12 is mounted to the traversing body 35 while an engaging member 23, with or from which a locking means 36 is engaged or disengaged, is set up to the pallet 12. The pallet 12 is transferred between the elevating base 7 and a parking shelf under the state, in which the pallet is locked and held by the locking means 36, and locking and holding by the locking means 36 are released after the completion of transfer, after the pallet 12 is transferred and stopped, thus preventing movement on the elevating base 7 and the parking shelf after the pallet 12 is shifted and the generation of vibrations and noises.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet transfer device for an elevator type parking device.

[0002]

2. Description of the Related Art An elevator-type parking system is provided with a lift for supporting and lifting a pallet on which a vehicle is placed, and a plurality of parking shelves for accommodating the vehicle with the pallet on one or both sides of a hoistway of the lift. Is generally known as a structure in which layers are arranged (multi-tiered) along the hoistway of the elevator, the elevator is connected to each parking rack, and pallets are transferred between the two.

As a pallet transfer device for such an elevator type parking device, there is known one in which pallet transfer means is supported on an elevating table so as to be movable in the pallet traveling direction (Japanese Patent Laid-Open No. 3-194072). reference). That is, in this product, the pallet transfer means is moved to the parking rack side on the lift table, and in this state, the pallet transfer means is operated so that the pallet can be transferred smoothly between the lift table and the parking rack. It was done.

In this case, a chain conveyor is adopted as the pallet transfer means, and the engaging claws fixed to the chain are engaged with the engaging recesses of the pallet when the conveyor moves from the return side to the carrier side. Then, the pallet is transferred by the traveling of the engaging claw on the carrier side, and is disengaged from the engaging concave portion when the engaging claw moves from the carrier side to the return side.

[0005]

However, in the case of the above-mentioned pallet transfer device, the pallet tries to move by inertial force even after the engaging claws of the chain are disengaged from the engaging recesses. Therefore, when the pallet is transferred from the lift to the parking rack or when it is transferred from the parking rack to the lift, the pallet collides with the stopper on the parking rack or the lift,
Generates relatively large noise and vibration. Even if the chain is braked near the end of the pallet transfer, it is difficult to eliminate the inertial force, and the problems of noise and vibration still remain.

[0006]

As a result of studying such a problem, the inventor of the present invention has come to the conclusion that there is a problem in the system itself for stopping the movement of the pallet by the stopper, and the pallet by the stopper is concluded. In place of the collision stop method described above, pallet lock holding means is provided in the means for transferring the pallet itself, and the pallet lock holding is released after the pallet transfer is completed, that is, after the pallet has no inertial transfer force. It is the one.

That is, the means for solving the above-mentioned problems are as follows: an elevating table that supports and elevates a pallet on which a vehicle is placed, and a plurality of layers arranged along the hoistway of the elevating table to accommodate each vehicle together with the pallet. A pallet transfer device for an elevator-type parking device, comprising a parking shelf, and connecting the elevators to each parking rack to transfer pallets between the elevators and the elevators. A traverse body provided so as to advance and retreat the pallet transfer distance between the platform and the parking rack in the pallet transfer direction, locking means provided on the traverse body for locking and holding the pallet, and the pallet. And an engaging member which is provided and which engages and disengages the locking means.

With respect to the engaging member of the pallet, the engaging member is provided on the end face in the pallet transfer direction to form a penetrating portion penetrating in the transfer direction by punching or notching,
Regarding the locking means, a contracted state in which the locking means is contracted toward the center of the penetrating portion so as to advance into the penetrating portion of the engaging member with a play, and the penetrating portion so as to engage with the engaging member in the pallet transfer direction so as not to advance and retract. It is preferable to provide an engaging claw that is driven to be contracted / expanded in the expanded state in which it is expanded to the outside.

Further, when the engaging member having the penetrating portion and the locking means having the claw member are combined as described above, the penetrating portion is formed to be longer in the vertical direction than in the lateral direction, and the engagement of the locking means is increased. It is preferable that the compound jaw is driven to be contracted / expanded in the left-right direction.

[0010]

In the case of each of the above-mentioned solving means, the pallet is transferred between the lift table and the parking rack by the forward / backward movement of the transverse body while being locked and held by the transverse body by the locking means. After the transfer, the pallet does not become free unless the lock holding by the lock means is released. Therefore, if the forward / backward movement of the traversing body stops, the pallet also stops moving and inertial force in the transfer direction does not remain.In this state, the lock holding is released to prevent pallet collision stop. can do.

Further, in the case where the pallet is provided with an engaging member having a penetrating portion, and the locking means is provided with an engaging pawl that is driven to be contracted and expanded, the contracted engaging pawl is provided in the penetrating portion of the engaging member. Since it is possible to advance with a play, it is possible to engage and disengage the traversing body and the pallet smoothly and quickly without impact.

Further, in the case where the penetrating portion is formed to be long in the vertical direction, even if the stop height of the lifting table deviates from the expected position, the engaging claw is engaged with the engaging member of the pallet. Will be able to.

[0013]

Therefore, according to the present invention, the elevating table is provided with a traverse body capable of advancing and retreating in the transfer direction of the pallet, and the traverse body is provided with a locking means for locking and holding the pallet, while the pallet is provided with the above-mentioned means. Since the locking member is provided with the engaging member that engages and disengages, after the transfer of the pallet by the traversing body is completed,
The pallet can be released from the traversing body in a state where no inertial force remains, and it is possible to prevent the generation of vibration and noise, which has occurred in the past, when the pallet is stopped.

Further, according to the pallet provided with the engaging member having the penetrating portion and the locking means provided with the engaging claw which is driven to be reduced or expanded, the traverse body and the pallet can be engaged and disengaged smoothly and without impact. It can be performed promptly, which is advantageous for reducing the vibration and noise.

Further, according to the above-mentioned penetrating portion formed to be long in the vertical direction, even if the stop height of the elevator is displaced from the intended position, the pallet of the parking rack can be transferred to the elevator. Like

[0016]

Embodiments of the present invention will be described below with reference to the drawings. <Regarding Overall Structure> In FIG. 1, reference numeral 1 denotes an entrance / exit opening that opens on the ground of the parking tower 2, and an elevator-type parking device 3 is provided in the parking tower 2. This parking device 3
Is equipped with a parking section 10 in which a large number of parking shelves 9 accommodating vehicles are arranged in layers along the hoistway 8 on both sides of a hoistway 8 provided with a vehicle lift 7. Below 10 is a loading / unloading section 11 for loading and unloading the vehicle. The loading / unloading port 1 is open to the loading / unloading section 11. Each of the parking shelves 9 is composed of two shelving members 9b, 9b each having a free roller 9a as shown in FIG. 2, and accommodates a vehicle mounted on a rectangular pallet 12. is there.

A turning device 20 for changing the direction of the vehicle is arranged in the pit 19 of the loading / unloading section 11.

<About Lifting Table> The lifting table 7 is of a rectangular shape having a through hole 7a at the center thereof through which the swivel of the swivel device 20 ascends and descends, as shown in FIG. The parking section 1 is suspended by the connected wire rope 13.
It is possible to move up and down between the parking rack 9 at the top of 0 and the loading / unloading section 11. That is, the wire rope 13
Is suspended by a guide pulley 14 at the upper end of the hoistway 8 and a drive pulley 15 which is driven to rotate by a drive motor. One end of the wire rope is connected to the elevator table 7 and the other end is connected to a balance weight 16. Elevating table 7 by traveling 13
Is moved to a predetermined connection position with the parking rack 9. The lift table 7 is also provided with free rollers similar to those of the parking shelf 9 (not shown), and the pallet 1
2 is movably supported.

<Regarding Pallet Transfer Device> As shown in FIG. 2, the elevator table 7 is provided with a pallet transfer device 21 for transferring the pallet 12 between the elevator table 7 and the parking rack 9. .. As the pallet transfer device 21, the lift table 7
And for the left side to transfer pallets between the left and right parking shelves 9,
There is one for the right side for transferring pallets between the lifting platform 7 and the right side parking rack 9. Both the left-hand side and the right-hand side are composed of two transfer means 22 which are arranged at a front and back with a space.

The pallet 12 is provided with a total of four engaging members 23 at the front and rear ends of the left and right end surfaces of the pallet 12 for engaging and disengaging the locking means of the transfer means 22, which will be described later. Even if the pallet 12 is swung 180 degrees by the swivel device 20, the four engaging members 23 are used for the left side 2
The pallet 12 is arranged point-symmetrically with respect to the center of rotation of the pallet 12 so as to have a positional relationship corresponding to a total of four transfer means 22 for two books and two for the right side.

The specific structure of the transfer means 22 is shown in FIG. -Pallet Engaging Member-First, the engaging member 23 of the pallet 12 will be described. As shown in Fig. 4, this has a through hole 23a which is formed by penetrating in the pallet transfer direction. This through hole 2
3a is formed in a long hole that is longer in the vertical direction than in the horizontal direction.

-Overall structure of transfer means-Since the transfer means 22 for the left side and the transfer means 22 for the right side are substantially the same except that the pallet transfer direction is reversed,
The right side will be described below. The transfer means 22 includes a first cylinder device 31 and a second cylinder device 32 on the lifting table 7.
The slider 34 is provided so as to be movable back and forth in the pallet transfer direction, and the traverse body 35 is provided on the slider 34 so as to be movable forward and backward in the pallet transfer direction by the third cylinder device 33. Is provided. The first cylinder device 31 and the second cylinder device 32 are connected in series in the pallet transfer direction.

-Structure of Locking Means- The locking means 36, as shown in FIG.
The base end part is supported on the left and right of the front end part of the pair of engaging claws 41, 41 projecting toward the parking rack. Both of these engaging claws 4
Reference numerals 1 and 41 are engaged with and disengaged from the engaging member 23 of the pallet 12 at the through holes 23a thereof, and are provided with U-shaped notches 41a and 41a on their outer side surfaces.

That is, the rising portion 41b on the base end side of the U-shaped notch 41a serves as an engaging portion for the engaging member 23 when the pallet 12 is transferred from the lifting platform 7 to the parking rack 9 (see FIG. 5). ), The rising portion 41c on the front end side of the notch 41a serves as an engaging portion for the engaging member 23 when the pallet 12 is transferred from the parking shelf 9 to the lift table 7 (see FIG. 6). Further, a taper guide surface 41d is formed on the outer surface of the tip end portions of both the engaging claws 41, 41 so that the engaging claw 41 is tapered toward the tip.
This taper guide surface 41d guides the engaging claw 41 into the through hole 23a by abutting against the edge of the through hole 23a of the engaging member 23 when the engaging member 23 and the locking means 36 are displaced in the lateral direction. To do.

The engaging claws 41, 41 are supported at their base ends by the vertical pins 42, 42 which are orthogonal to the pallet transfer direction on the traverse body 35, whereby the through holes of the engaging member 23 are formed. 23a and the engaging member 23
On the other hand, it is designed to be contracted / expanded between an expanded state in which it is expanded to the outside of the through hole so as to engage with the pallet transfer direction so that it cannot move back and forth.

Then, the engagement claws 41, 41 are reduced in size.
For expansion drive, both engagement claws 41, 41 are urged in a contracted state by a spring 43, and provided with a piston rod 44 that advances and retracts between the base end portions of the left and right engagement claws 41, 41. The fourth cylinder device 45 is the traverse body 3
Built into 5. A tapered taper 44a is formed at the tip end portion of the piston rod 44, while the base end portions of the engaging claws 41, 41 project inward beyond the vertical pins 42, 42 and the taper 44a. Passive surfaces 41e, 41e that are in contact with each other are formed.

That is, the fourth cylinder device 45 is
By the projection of the piston rod 44, the taper 44a is brought into contact with the passive surfaces 41e, 41e of the engaging claws 41, 41, and the engaging claws 41, 41 are expanded and driven against the reduction biasing force of the spring 43. To do. In the fourth cylinder device 45, reference numeral 46 is a return spring that is provided in the cylinder and that applies a biasing force to the piston 47 to return the piston rod 44 to the original position.

<Operation of Pallet Transfer Device> -Transfer of pallet from elevator to parking rack-As shown in FIG. 3, first to third cylinder devices 31 to 31
The state in which the piston rod 33 is retracted and the traversing body 35 is positioned on the lift table 7 is the initial state. At this time, the fourth
The cylinder device 45 also has the piston rod 44 retracted. The pallet 12 is on the lift table 7.

From the initial state, the first cylinder device 31
Causes the traverse body 35 to move forward by projecting its piston rod (see FIG. 7), and the engaging claws 41, 41 of the locking means 36.
Is fitted into the through hole 23a of the engaging member 23 of the pallet 12 (see FIG. 4).

The fourth cylinder device 45 is the piston rod 4
4 is made to project and the engaging claws 41, 41 are expanded by the taper 44a, and the base end side rising portion 4 of the U-shaped notch 41a is formed.
1b is engaged with the engaging member 23 (see FIG. 5).

The second cylinder device 32 and the third cylinder device 33 project the piston rod so that the lock means 3 is
The pallet 12 is transferred to the parking shelf 9 via 6 (see FIG. 8).

After completion of the above transfer, that is, the pallet 12
Is stopped on the parking rack 9 and the locking means 36
The fourth cylinder device 45 retracts the piston rod 44, and brings the engagement claws 41, 41 into a contracted state by the urging force of the spring 43 (see FIG. 4). As a result, the locking means 36 disengages the transverse body 35 and the pallet 12, but the pallet 12 is disengaged when the pallet 12 is stopped and there is no inertial force. No noise, no vibration or noise.

After that, the first to third cylinder devices 3
1-33 retract each piston rod. This returns to the initial state.

-Transfer of pallet from parking rack to elevator-In this case, pallet 1 from elevator 7 to parking rack 9
2 will be operated in the reverse manner of transfer. That is,
From the above-mentioned initial state, the first to third cylinder devices 31 to 31
33 is actuated into the state shown in FIG. At this time, the locking means 36 is in the state shown in FIG. Then, as shown in FIG. 6, the engaging claws 41, 41 are set in the expanded state, and the leading end side rising portion 41c of the U-shaped notch 41a is engaged with the engaging member 23. In this state, the second and third cylinder devices 32 and 33 are operated to transfer the pallet 12 onto the lift table 7 (the state shown in FIG. 7).

After the transfer is completed, that is, when the pallet 12 is stopped on the lift table 7, the engaging claws 41, 41 of the lock means 36 are set to the contracted state, and the engagement between the traverse body 35 and the pallet 12 is reduced. Then, the first cylinder device 31 is actuated to the initial state. In this case, the disengagement is also performed in a state where the pallet 12 is stopped and there is no inertial force, so that the pallet 12 does not move carelessly and no vibration or noise is generated.

Further, since the through hole 23a of the engaging member 23 of the pallet 12 is formed as a long hole which is longer in the vertical direction than in the horizontal direction, the stop position of the lifting platform 7 with respect to the parking rack 9 is slightly displaced vertically. However, when the pallet 12 is transferred from the parking shelf 9 to the lift table 7, the engagement between the engagement claw 41 of the lock means 36 and the engagement member 23 is not hindered.

Although a cylinder device is used to drive the traverse body 35 in the transfer means 22, other transfer means such as a screw feed type transfer means or a rack and pinion type transfer means may be used. When the cylinder device is used as in the above embodiment, the first and second cylinder devices 31, 32, the third cylinder device 33, and the slider 34 may be arranged side by side to reduce the vertical height. Good.

Further, in the above embodiment, free rollers are provided on the lift 7 and the parking rack 9 to support the pallet 12 so that it can move freely. Rails for wheels may be provided.

Further, although the through hole 23a is formed in the engaging member 23 in the above-mentioned embodiment, a notch which opens upward or downward and penetrates in the pallet transfer direction may be formed.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an elevator parking device.

FIG. 2 is a partially omitted plan view showing a lift, a parking rack, and a pallet

FIG. 3 is a side view showing a pallet transfer device.

FIG. 4 is a partial cross-sectional plan view showing the locking means and the engaging member in a non-engaging state.

FIG. 5 is a partial cross-sectional plan view showing the locking means and the engaging member in an engaged state.

FIG. 6 is a partial cross-sectional plan view showing another engagement state of the locking means and the engagement member.

FIG. 7 is a side view showing a state in which the engagement member of the pallet and the lock means are engaged on the lift table.

FIG. 8 is a side view showing a state in which a pallet is transferred to a parking rack (not shown) by a pallet transfer device.

[Explanation of symbols]

 3 Parking device 7 Elevating table 8 Hoistway 9 Parking shelf 12 Pallet 21 Pallet transfer device 22 Transfer means 23 Engaging member 23a Through hole 35 Traverse body 36 Locking means 41 Engaging claw

Claims (3)

[Claims] 1. An elevating platform for supporting a pallet on which a vehicle is mounted to ascend and descend, and a plurality of parking shelves arranged in layers along the hoistway of the elevating platform for accommodating each vehicle together with the pallet. A pallet transfer device for an elevator-type parking device in which a pedestal and each parking rack are connected to transfer a pallet between them, wherein the pallet is mounted on the lift base and between the lift base and the parking rack. Of the traverse body, which is capable of advancing and retreating in the conveying direction of the pallet, lock means for locking and holding the pallet, which is provided on the traverse body, and the lock means provided on the pallet. A pallet transfer device for an elevator-type parking device, comprising: 2. The engaging member of the pallet is provided on an end face in the pallet transferring direction, and has a penetrating portion penetrating in the transferring direction by perforation or notch, and the locking means is the engaging member. Between a contracted state in which it contracts toward the center of the penetrating portion so as to advance into the penetrating portion with play, and an expanded state in which the engaging member is expanded to the outside of the penetrating portion so as to engage with the engaging member in the pallet transfer direction so as to be unable to advance and retract. The pallet transfer device for an elevator-type parking device according to claim 1, further comprising an engagement claw that is reduced and expanded. 3. The elevator type parking according to claim 2, wherein the penetrating portion of the engaging member is formed to be longer in the vertical direction than in the horizontal direction, and the engaging claw of the locking means is contracted / expanded in the lateral direction. Equipment pallet transfer device.