JPH05272252A - 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 transfer of a pallet 12, and a locking means 36 locking and holding the pallet 12 is mounted to the traversing body 35. Pins 23 are fitted to the pallet 12 for the locking and holding, and fixing binding pawls fixing and binding the pins 23 are set up to the locking means 36. 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 shifted and stopped, thus preventing movement on the elevating base 7 and the parking shelf after transfer of the pallet 12 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 elevator to each parking shelf to transfer a pallet between them, wherein the pallet is transferred to the pallet. A pin that is supported so as to be orthogonal to the direction, a traverse body that is provided on the elevating table so that the pallet transfer distance between the elevating table and the parking shelf can be moved back and forth in the pallet transfer direction, and The lock means is provided on the traverse body and has a claw for securing the pin of the pallet.

In this case, it is preferable that the pin be supported horizontally in a vertically long slot formed in the pallet so as to be vertically movable.

[0009]

In the case of each of the above-mentioned solving means, the pallet is transferred between the elevating table and the parking rack by the advancing / retreating movement of the traversing body in a state where the pallet is locked and held by the locking means by the pin of the locking means. Will be done. 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,
By releasing the lock holding in this state, it is possible to prevent the pallet from colliding and stopping. Further, as described above, since the pin locking method using the claws is adopted for the lock holding of the pallet, the structure of the locking means is simplified.

Further, in the case where the pin is horizontally supported and vertically movable in a vertically elongated hole of the pallet, even if the stop height of the lifting table is deviated from the intended position, the pawl of the locking means is provided. Can be engaged with the horizontal pins of the pallet.

[0011]

According to the present invention, therefore, the pallet supports the pins orthogonal to the transfer direction of the pallet, while the elevating table is provided with the traverse body so as to be movable back and forth in the pallet transfer direction. Since the locking means having the pawls for securing the pins of the pallet is provided, the pallet can be released from the traverse body without any inertial force after the transfer of the pallet by the traverse body is completed. It is possible to prevent the generation of vibration and noise when the pallet is stopped, which has occurred in the past, while adopting a simple means of securing.

Further, according to the above-mentioned pin, which is horizontal and is supported in a vertically elongated hole of the pallet so as to be vertically movable,
Even if the stop height of the lifting platform deviates from the desired position, the pallets on the parking shelves can be transferred to the lifting platform.

[0013]

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. As shown in FIG. 2, each parking rack 9 is composed of two rack rails 9a, 9a, and accommodates a vehicle mounted on a rectangular pallet 12 with wheels.

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 Platform> The lifting platform 7 is, as shown in FIG. 2, a rectangular one having a through hole 7a in the center thereof through which the swivel of the swivel device 20 is raised and lowered, and its four corners. 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. Further, rails 7b and 7b similar to those of the above-mentioned parking rack 9 are also provided on the lift base 7 so as to movably support the pallet 12.

<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 specific structure of the transfer means 22 is shown in FIG. -Pallet Pins-First, the pallet 12 will be described. The pallet 12 is provided with pins 23 shown in FIG. The pin 23 is fixed by a locking means of the transfer means 22 which will be described later, and is supported by a pair of brackets 24 facing the front and back of the lower surface of the pallet 12 (note that one bracket 24 is shown in the figure). Only appears). That is, the bracket 24 is formed with a long hole 24a that is long in the up-down direction, and the pin 23 has a long hole 2a.
It is supported by 4a so as to be vertically movable and horizontally.

Further, four pins 23 of the pallet 12 are provided.
Even if the pallet 12 is swung 180 degrees by the swivel device 20, the point symmetry with respect to the turning center of the pallet 12 is such that the pallet 12 has a positional relationship corresponding to the four transfer means 22 for the left side and two for the right side. It is located in.

-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 directions are reversed,
The right side will be described below. The transfer means 22 is shown in FIG.
As shown in FIG. 3, a slider 33 is provided on the lifting table 7 so as to be able to advance and retreat in the pallet transfer direction by the first cylinder device 31 and the second cylinder device 32, and the cylinder device 31 via the slider 33 and the wires 34a and 34b. , 3
A traverse body 35 that receives a driving force of 2 and moves back and forth in the pallet transfer direction in a stroke twice the stroke of the slider 33,
Locking means 36 is provided on the traverse body 35.

The first cylinder device 31 and the second cylinder device 32 are connected in series in the pallet transfer direction. The one wire 34a is used to feed the traversing body 35 from the lifting platform 7 to the parking rack 9, and one end thereof is fixed to the left end portion of the lifting platform 7 (the opposite side of the parking rack). Pulley 3 at the right end of the slider 33 (on the side of the parking rack)
It is wound around 7 and the other end is fixed to the left end of the transverse body 35. The other wire 34a is used to return the traversing body 35 from the parking shelf 9 to the lift table 7, and one end thereof is fixed to the right end portion of the lift table 7 and wound around the pulley 38 at the left end portion of the slider 33. The other end is hung and fixed to the right end of the transverse body 35.

-Structure of Locking Means- The locking means 36, as shown in FIG.
Pin receiving member 41 fixed to the upper surface of the tip (right end) of the
A movable securing claw 42 for securing and holding the pin 23 to the pin receiving member 41, a spring 43 for biasing the securing claw 42 to a securing and holding position, and a securing claw 42 for the spring 4
Securing releasing means 4 for moving to the releasing position against the bias of 3.
4 and.

The pin receiving member 41 has a U-shaped pin receiving 41a which is open toward the parking rack 9. The opening of the pin receiver 41a is formed in tapered guide surfaces 41b and 41b which are divergent vertically toward the opening end.

The lashing claw 42 has a base end fixed to a horizontal rotation shaft 45 rotatably supported on the back of the pin receiver 41a of the pin receiving member 41, and protrudes downward at the tip end to project above. The pin receiver 41a is provided with a locking portion 42a for securing and holding the pin 23. Further, a taper guide surface 42b that is inclined upward from the lower end of the locking portion 42a toward the tip of the securing claw is formed.

A lever 46 is fixed to the horizontal rotation shaft 45 of the securing claw 42, and the spring 43 is stretched between the pin receiving member 41 and the lever 46. Further, the pin receiving member 41 is provided with a stopper 47 that prevents the lashing claw 42 from excessively rotating due to the urging of the spring 43 and restricts the lashing holding position of the lashing claw 42.

The lashing releasing means 44 is composed of a third cylinder device arranged in the pallet transfer direction and supported by the traversing body 35, and the lashing claw is pushed through the lever 46 by the protrusion of the piston rod. This is to rotate 42 to the lashing release position. A roller 48 that contacts the lever 46 is supported at the tip of the piston rod.

<Operation of Pallet Transfer Device> -Transfer of Pallet from Elevating Table to Parking Shelf-As shown in FIG. 3, first and second cylinder devices 31, 3
The state in which the second piston rod is retracted and the traversing body 35 is positioned on the lift table 7 is the initial state. Also, pallet 12
Is on the lift 7.

From the initial state, the first cylinder device 31
When the piston rod projects its piston rod to advance the traverse body 35 (see FIG. 8), the locking means 36 secures the pin 23 of the pallet 12. That is, when the transverse body 35 moves forward from the initial state shown in FIG. 4, as shown in FIG. 5, the lashing claw 42 at the lashing holding position of the locking means 36.
Is the pin 2 of the pallet 12 on the front tapered guide surface 42b.
3, the pin 23 is rotated upwards against the biasing force of the spring 43 to move the pin 23 into the pin receiving member 4 of the pin receiving member 41.
1a, and returns to the lashing and holding position again (see FIG. 6).

When the second cylinder device 32 is extended, the traverse body 35 moves along with the slider 33 as the slider 33 moves toward the parking rack 9 as shown in FIG.
It moves to the parking rack 9 with a double stroke of
The pallet 12 is transferred from the lift table 7 to the parking rack 9.

After the completion of the transfer, that is, the pallet 12
Is stopped on the parking rack 9 and the locking means 36
When the lashing releasing means (third cylinder device) 44 of (4) causes the piston rod to project, the lashing claw 42 rotates to the lashing release position. Thereby, the pallet 12 by the locking means 36
However, since the pallet 12 is released in the state where the pallet 12 is stopped and there is no inertial force, the pallet 12 does not move carelessly and no vibration or noise is generated.

After that, the first and second cylinder devices 31 and 32 are reduced and the traversing body 35 is returned to the top of the lift 7. This returns to the initial state.

-Transfer of pallet from parking rack to lift-In this case, pallet 1 from lift 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 and second cylinder devices 31, 3
2 is operated and brought into the state shown in FIG. At this time, the locking means 36 secures the pin 23 of the pallet 12 in the manner shown in FIGS. 4 to 6 as in the case of the previous transfer.
Next, the second cylinder device 32 is contracted to move the traverse body 35.
At the same time, the pallet 12 is transferred onto the lift table 7.

After the transfer is completed, that is, while the pallet 12 is stopped on the lift table 7, the lashing releasing means 44 of the lock means 36 is operated to lash the pallet 12 with the lashing claws 42. Is released, and thereafter, the first cylinder device 31 is contracted to the initial state. Since the lashing release in this case is also performed in a state where the pallet 12 is stopped and there is no inertial force, the pallet 12 does not move carelessly, and vibration and noise are not generated.

Further, even if the stop position of the lifting platform 7 with respect to the parking rack 9 is slightly shifted vertically, the taper guide surfaces 41b, 4 are provided on the pin receiving member 41 and the locking claw 42 of the locking means 36, respectively.
2b is provided and the pin 23 of the pallet 12 can be moved up and down, so that the locking means 36 when the pallet 12 is transferred from the parking rack 9 to the lift 7 is provided.
There is no problem in fixing the pin 23 of the pallet 12 by the.

In the transfer means 22, a cylinder device and a wire are used together to drive the traverse body 35, but a multi-stage cylinder device may be used, or a screw feed type transfer means, a rack and pinion type transfer means, etc. The transfer means may be used. Further, in the case of the transfer means as in the above embodiment, the first and second cylinder devices 31, 32 and the slider 3 are used.
3 and the transverse body 35 may be arranged side by side in order to reduce the vertical height.

Further, in the above embodiment, the pallet 12 is provided with wheels and the elevators 7 and the parking shelves 9 are provided with rails for wheels. However, the elevators 7 and the parking shelves 9 are provided with free rollers to provide pallets. You may make it support 12 so that movement is possible.

Further, although the pin 23 is supported horizontally and vertically movable in the above-mentioned embodiment, the pin may be made vertical and lengthened vertically (in this case, the locking means 36 is also a securing claw). The vertical axis of rotation is also made). Even in this case, when the stop position of the lift table 7 with respect to the parking rack 9 is slightly shifted vertically, there is no problem in securing the pins of the pallet 12 by the lock means 36.

[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 and a parking rack.

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

FIG. 4 is a side view showing the locking means and the pin in a non-secured state.

FIG. 5 is a side view showing a state in which the locking means is in the process of securing the pin.

FIG. 6 is a side view showing a state in which the pin is secured by the locking means.

FIG. 7 is a side view showing a state in which the locking claw of the lock means is rotated to the release position.

FIG. 8 is a side view showing a state in which the pallet is locked and held on the lift table.

FIG. 9 is a side view showing a state in which a pallet is sent to a parking rack (not shown) by the pallet transfer device.

[Explanation of symbols]

 3 Parking device 7 Elevating table 8 Hoistway 9 Parking rack 12 Pallet 21 Pallet transfer device 22 Transfer means 23 Pin 24a Long hole 35 Traverse body 36 Locking means 42 Locking claw

Claims (2)

[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, which is supported on the pallet so as to be orthogonal to the transfer direction of the pallet. A pin, a traverse body provided on the elevating table so as to advance and retreat the pallet transfer distance between the elevating table and the parking rack in the pallet transfer direction, and a pallet provided on the traverse object. A pallet transfer device for an elevator-type parking device, comprising: locking means having a claw for securing a pin. 2. The pallet transfer device for an elevator parking apparatus according to claim 1, wherein the pin is supported horizontally in a vertically elongated slot formed in the pallet so as to be vertically movable.