JPH0972122A - Controller for elevator type parking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate calling of an empty pallet to a getting-on floor quickly by retrieving the empty pallet while using a parking shelf on the top floor of a lifting-lowering stage or a floor, to which a pallet on the lifting-lowering stage belongs, as the first priority. SOLUTION: A controller with an entering requirement button 62a, a memory 61b, a lifting-lowering stage position sensor 64, an on-lifting-lowering stage pallet detector 66, etc., is installed. When a pallet call command is received and a pallet to be called is to be retrieved, parking shelves on the stop floor of a lifting-lowering stage or a floor, to which the pallet on the lifting-lowering stage belongs, are given the first priority. Parking shelves on a floor between the floor of the first priority and an entering-leaving section are given the second priority. An elevator and a pallet lateral shifter are driven and controlled so that retrieved empty pallets are carried to the entering-leaving section.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Generally, an elevator-type parking apparatus includes an elevator having an elevator for supporting a pallet on which a vehicle is placed and for ascending and descending, and a plurality of parking shelves for accommodating the vehicle together with the pallet on both sides of a hoistway of the elevator. Are arranged in layers (multi-tiered) along the hoistway, and a loading / unloading part for loading and unloading a vehicle for parking is formed at the lowest position of the hoistway. Further, the elevating table or each parking shelf is provided with a lateral transfer means for connecting the elevating table and each parking shelf and laterally transferring the pallet between them.

In such an elevator-type parking apparatus, when a vehicle is to be parked, an administrator or a user of the parking apparatus operates an operation panel provided outside the loading / unloading section and the vehicle is not loaded. The pallet is called to the storage section. In order to call this empty pallet, it is necessary to call the empty pallet to the loading / unloading section promptly to shorten the waiting time of the user as much as possible.

Therefore, in Japanese Utility Model Laid-Open No. 4-59256, when the pallet is called by the operation of the operation panel, it is detected whether the elevating table is in the loading operation, the exiting operation, or the non-working status. However, when unloading work is in progress, the pallet on the elevator is searched, and when it is either in warehousing work or inactive, parking on the floor where the elevator is stopped or the floor where the elevator is stopped. Empty shelves are searched with shelves as the first priority, parking shelves on the floor between the elevator stop floor and the lowest loading / unloading section as the second priority, and after this search, elevators and pallet lateral transfer It is disclosed that the empty pallet is transported to the loading / unloading section by drivingly controlling the means.

[0005]

By the way, in order to increase the number of parking lots in the recent elevator type parking apparatus, not only a parking shelf is provided on the ground but also a plurality of parking shelves are provided underground along the hoistway. In this case,
The loading / unloading section is usually provided at a ground surface position or the like in the middle of the hoistway.

However, in such an elevator parking apparatus, when the empty pallet retrieval method as disclosed in the above-mentioned publication (Japanese Utility Model Laid-Open No. 4-59256) is adopted, the first priority floor, that is, elevator If there is no empty pallet in the parking rack on the floor where the platform is stopped or the floor where the elevator is stopped, the empty pallet will be searched in order from the lowest floor to the top floor in the basement. It is not possible to call the delivery department quickly, and the waiting time of the user becomes long.

The present invention has been made in view of the above points, and an object thereof is to provide an elevator type parking apparatus having a loading / unloading section in the middle of a hoistway, in which an empty pallet can be loaded / unloaded in the loading / unloading section in a short time. It is something that can be called.

[0008]

In order to achieve the above object, the invention according to claim 1 is, as an elevator-type parking apparatus, an elevator having an elevating platform for supporting and elevating a pallet on which a vehicle is mounted, and the elevator platform. A plurality of parking shelves that are arranged in a hierarchy along the hoistway and each house a vehicle together with a pallet, and a loading / unloading section that is formed at an intermediate position of the hoistway for loading and unloading vehicles. It is premised that the pallet lateral transfer means is provided for connecting the elevator and the respective parking shelves and laterally transferring pallets between them. Then, as a control device for such an elevator-type parking device, a call command output means for calling a vehicle pallet for loading and unloading a pallet to the loading / unloading unit, and for each parking rack, the presence / absence of an empty pallet on which a vehicle is not loaded is stored. Storage means, stop floor detection means that detects the stop floor when the elevator is stopped when a pallet call command is issued, and an elevator that puts the pallet on when the pallet call command is issued A pallet detecting means for detecting which floor the pallet belongs to when working, and a pallet calling command. The parking rack on the stop floor or the floor to which the pallet on the lift belongs belongs to the first priority, and the parking rack on the floor between the floor having the first priority and the loading / unloading section is the second priority. Pallet search means for searching for empty pallets based on the empty pallet information by the storage means as a rank, and driving control of the elevator and pallet lateral transfer means so as to convey the empty pallets searched by this search means to the loading / unloading section. And a control means.

As a result, when the first priority floor is the ground floor and there is no empty pallet on the parking rack on that floor, an empty pallet is first set between the loading / unloading section and the first priority floor on the ground. Search for. When there is an empty pallet in the meantime, when calling the empty pallet to the loading / unloading section, it is not necessary to lower the lifting platform to the basement, and the empty pallet can be called quickly by that amount. In addition, even if the first priority floor is the basement floor and there is no empty pallet on the parking shelf on that floor, first search for an empty pallet from the loading / unloading section to the basement first priority floor. If there is an empty pallet in the meantime, the empty pallet can be quickly called to the loading / unloading section without raising the lifting platform to the ground floor above the loading / unloading section.

According to a second aspect of the present invention, in the control device for the elevator type parking apparatus according to the first aspect, when the pallet searching means has no empty pallet on any of the parking shelves on each floor of the second priority. The search range is alternately expanded to the upper floors and the lower floors by one floor to search for empty pallets. As a result, even if there is no empty pallet on any of the parking shelves on each floor of the second priority, the empty pallets are searched in order from the parking shelves on the floors closer to them, and the empty pallets are moved to the loading / unloading section by the elevator. Since the call is made, the moving distance of the lifting platform can be shortened to quickly call the empty pallet.

[0011]

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

FIG. 1 shows an elevator type parking apparatus A equipped with a control device according to an embodiment of the present invention. The parking apparatus A is installed in a parking tower 1 having a ground floor and a basement floor,
This is a so-called intermediate entry type vehicle from which a vehicle enters from an entrance / exit 2 provided on the first floor above the ground, which is the entry floor of the parking tower 1.

That is, the parking apparatus A is provided with a hoistway 6 which vertically extends in the center of the parking tower 1 and a pallet 12 on which a vehicle W is placed and which hoists and hoists 7 on the hoistway 6.
And a plurality of parking shelves 9, 9 ... Which are arranged in a hierarchy along the hoistway 6 and each house a vehicle together with a pallet 12.
And a loading / unloading section 1 formed on the first floor above the ground, which is an intermediate position of the hoistway 6, for loading and unloading vehicles.
1 and. The loading / unloading port 2 is the loading / unloading section 11
It is open at. Each of the parking shelves 9 includes two shelf rails 9a, 9a (see FIG. 2) fixed to the parking tower 1, and accommodates the vehicle W on a rectangular pallet 12. is there.

The elevating table 7 is of a rectangular shape for mounting and elevating a pallet 12, and is suspended by wire ropes 13 connected to the four corners of the pallet 12 and is suspended from the parking rack 1 at the topmost parking rack 9 on the ground. It is possible to move up and down from the parking rack 9 at the bottom of the underground. That is, the wire rope 13 is wound around the guide pulley 14 at the upper end of the hoistway 6 and the drive pulley 15 which is driven to rotate by the drive motor, and one end side is connected to the lift table 7 and the other end side is connected to the balance weight 16. Then, by raising or lowering the wire rope 13, the elevating table 7 is moved to a predetermined connection position with the parking shelf 9, and the elevator 5 is constituted by these.

As shown in FIG. 2, the elevator table 7 is provided with a pallet lateral transfer device 21 as a pallet lateral transfer means for transferring the pallet 12 between the elevator table 7 and the parking rack 9. . The pallet lateral transfer device 21 includes transfer mechanisms 22 and 22 arranged at both front and rear ends of the lift table 7, and a drive motor 23 constituting a support member moving means 33 described later is provided in both of the transfer mechanisms 22 and 22. Shaft coupling 24,
It is connected via a speed reducer 25 and two front and rear transmission shafts 26, 27. The transmission shafts 26 and 27 are connected to the speed reducer 25 and the transfer mechanisms 22 and 22 using universal joints 28, respectively. The reason for using the universal joint 28 will be described later.

The pallet 12 has a total of four collared wheels 17 on the left and right of the front and rear ends thereof and a total of four engaging pieces 18 (see FIGS. 3 and 4).

The specific structure of the transfer mechanism 22 is shown in FIG.
And detailed in FIG.

That is, as shown in FIG. 3, the transfer mechanism 2
2 is a pallet support member 31 provided on the lifting table 7 so as to be movable in the pallet transfer direction (left and right direction in the figure).
And a pallet transfer means 32 provided on the pallet support member 31 and a support member moving means 33 for moving the pallet support member 31.

The pallet support member 31 includes a pair of left and right support frames 36 having wheels 35, 35 at both front and rear ends.
36, a pallet traveling rail 37 extending in the left-right direction across the support frames 36, 36, and a groove type frame 38 extending in the left-right direction also extending over the support frames 36, 36. It is composed of and. The wheels 35, 35 of the support frame 36 are the lifts 7
Of the pallet support member 31 mounted on the horizontal movement rails 41, 41 provided on the horizontal frames 39, 40 of the
Can be laterally moved on the moving rails 41, 41 in the pallet transfer direction. The pallet traveling rail 37 allows the wheels 17 of the pallet 12 to be placed on the pallet 12 so that the pallet 12 can travel in the transfer direction, and the pallet 12 can travel on the traveling rail 37. A cross rail 42 is attached to the traveling rail 37. This cross rail 42
This is for passing the pallet 12 by passing it between the traveling rail 37 of the pallet support member 31 and the shelf rail 9a of the parking shelf 9, and is supported by the end of the traveling rail 37 to support the parking shelf 9 It projects to the side.

As shown in FIG. 4, the pallet transferring means 32 has a set of two engaging pins 45a and 45b which engage with the engaging pieces 18 of the pallet 12, and the engaging pins 45 are provided.
The chain feed mechanism 44 moves the pallet 12 engaged with a and 45b relative to the pallet support member 31 in the left-right direction (lateral direction). The chain feed mechanism 44 has an upper sprocket 46 supported by two grooves above and below each of the left and right ends of the groove type frame 38, with two shafts in the front and rear and a shaft center horizontal in the front and rear direction.
a and 46b, lower sprockets 46c and 46d, and two front and rear endless conveyor chains 4 respectively wound around the set of four sprockets 46a to 46d.
7, 47 and. The engaging pins 45a, 45b are attached to the two conveyor chains 47, 47 horizontally in the front-rear direction.

The engaging piece 18 of the pallet 12 is an inverted U-shape having an engaging recess 18a which is opened downward so that the engaging pins 45a and 45b engage with each other. It widens downward at the opening edge. Then, in order to cause the conveyor chain 47 to travel in the forward and reverse directions, the transmission shaft 26 for transmitting the rotational driving force from the drive motor 23 described above, via the universal joint 28, the lower sprocket 46c on one side (left side in the drawing). Is connected to a support shaft 48 of. A gear 49 attached to the support shaft 48 meshes with a gear 50 integrally provided on the upper sprocket 46a to transmit the rotational driving force from the drive motor 23 to the upper sprocket 46a. The universal joints 28 are provided at both ends of the transmission shaft 26 in order to allow movement of the pallet support member 31 in the pallet transfer direction.

The support member moving means 33 includes a roller-equipped gear 52 having a pair of drive rollers 51, 51 arranged point-symmetrically on one surface of the gear, and two grooves 53a extending in the front-rear direction and having one end open. , 53a, and a drive motor 54 for moving the gear 52 with rollers. The gear 52
Is supported by the vertical frame on the horizontal frame 40 of the lifting table 7 so that the driving rollers 51, 51 are projected upward, while the rack member 53 is driven by the driving rollers 51, 5
1 is fixed to the lower surface of the groove type frame 38 of the pallet supporting member 31 so that the groove 1 can be engaged with the grooves 53a. The moving drive motor 54 is attached to the horizontal frame 40, and a pinion 55 connected to the output shaft thereof is meshed with the gear 52. Then, the rotation of the roller-equipped gear 52 by the movement drive motor 54 causes the drive rollers 51, 51 to rotate and the groove 53 of the rack member 53.
The pallet support member 31 moves in the left and right directions in and out of the a and 53a.

On the other hand, the rack rail 9a of the parking rack 9 is provided with a slight downward gradient (about 2/100) toward the outside so that the inside (hoistway 6 side) is at a high position. A stopper 81 is attached to the side surface of the end opposite to the hoistway 6. This stopper 81 is for the pallet 1
The outer peripheral surface of the collar of the second wheel 17 has a rolling surface 81a that is inclined upward to the outside, and a stopper surface 81b that rises from the outer end of the rolling surface 81a. 3 and 4, the central portion of the parking rack 9 in the left-right direction is omitted.

FIG. 5 shows a control system of the elevator parking apparatus A.

In the figure, 61 is a controller having a CPU 61a and a memory 61b as a storage means, and 6
2 is an operation panel provided on the outer surface of the loading / unloading section 11 of the parking tower 1, 63 is a drive device for the lifting platform 7, 64 is a platform position detector for detecting the position of the platform 7, and 65 is each parking rack 9 , 66 is a detector for detecting the presence or absence of an empty pallet on the lifting platform 7, 66 is a pallet detector on the lifting platform, 67 is a member for detecting the positions of the engagement pins 45a, 45b of the pallet lateral transfer device 21. This is a pin-to-pin position detector, and these devices and the pallet lateral transfer device 21 (specifically, drive motors 23 and 54 thereof) are connected to each other via a bus 68 so that signals can be exchanged between them.

The memory 61b writes and stores information on the presence / absence of empty pallets on all the parking shelves 9 based on the detection result of the vehicle presence / absence detecting means 65. Operation panel 62
Is operated by the user (or manager) of the parking device, and designates a warehousing request button 62a, a warehousing request button 62b as pallet call command output means, and a parking shelf 9 accommodating a vehicle to be evacuated. A numeric keypad 62c, a power switch 62d, an operation switch 62e, a loading / unloading state display panel 62f, and the like are provided.

The elevator platform position detector 64 is composed of limit switches provided on each parking floor and the loading / unloading section 11. The vehicle presence / absence detector 65 is provided on each parking rack 9, and the elevator platform pallet detector 66 is provided on the elevator platform 7. The engagement pin position detector 67 includes the engagement pins 45a, 4
This is a limit switch for detecting whether 5b is at the right end or the left end of the lift 7.

Although not shown, the CPU 61a also includes a stop floor detection unit, a pallet detection unit, a pallet search unit, a lift drive unit 63, and a pallet lateral transfer unit 2.
And a control unit for controlling a drive system composed of one drive motor 23, 54. When the pallet call command is issued, the stop floor detection unit detects the stop floor when the elevator platform 7 is stopped based on the operation state of the operation panel 62 and the signal of the elevator platform position detector 64. When the pallet call command is similarly issued, the pallet detector detects that the lift table 7 is operated based on the operation state of the operation panel 62, the signal of the lift platform pallet detector 66 and the drive state of the drive system. Pallet 12
It is to detect which floor this pallet belongs to when the pallet is loaded and the warehousing work is being performed. The pallet search unit includes the memory 61b and the engagement pin position detector 6
7. Based on the information from the stop floor detection unit and the pallet detection unit, the control unit searches for a pallet 12 that can be conveyed to the storage / reception unit 11 in the shortest time for the next vehicle to be stored. The drive system is controlled so that the pallet 12 retrieved by the section is conveyed to the warehousing / discharging section 11.

Next, regarding the operation of the parking apparatus A, the entire movement of the vehicle W when the vehicle W is loaded, the entire movement of the vehicle W when the vehicle is loaded, the transfer of the pallet 12 from the lift 7 to the parking rack 9, and the parking rack. The transfer of the pallet 12 from the elevator 9 to the lift table 7 and the call control of the pallet 12 for warehousing will be described in this order.

(Whole movement of vehicle when the vehicle is loaded) When the vehicle is loaded, the elevator 7 is stopped at the position of the parking rack 9 on which the empty pallet 12 is placed, and the empty pallet 12 is moved by the pallet transfer device 21. It is moved to the lifting / lowering table 7, and the lifting / lowering table 7 is lowered or raised and stopped at the loading / unloading section 11. The vehicle W is moved forward through the loading / unloading port 2 and placed on the empty pallet 12, and after the occupant gets off, the elevator platform 7 is raised or lowered to the original position of the parking rack 9, and the pallet transfer device 21 moves the vehicle W together with the pallet 12. Move to parking rack 9.

(Whole movement when the vehicle exits) When the vehicle exits, the lifting platform 7 is stopped at the position of the parking rack 9 on which the vehicle W to be unloaded is placed, and the vehicle W and the pallet 12 are palletized. Moved to the lift 7 with the transfer device 21,
The elevating table 7 is lowered or raised to be stopped at the loading / unloading section 11, and the vehicle W is unloaded from the pallet 12 by the operation of the occupant and taken out from the loading / unloading port 2.

(Transfer of pallet from elevator to parking rack)
When transferring the pallet 12 from the lifting platform 7 to the parking rack 9, first, the pallet support member 31 is moved to the parking rack 9 side by the support member moving means 33 in a state where the lifting platform 7 is stopped at a predetermined parking rack 9 position. Move to. That is, when the gear 52 with rollers is rotated by the drive motor 54 for movement, the drive rollers 51, 51 move in and out of the grooves 53 a, 53 a of the rack member 53 while the pallet support member 31 moves to the rails 41, 41 for movement. The top is moved to the parking rack 9 side.

Subsequently, the pallet transfer means 32 transfers the pallet 12 to the parking rack 9 side. That is, when the target parking rack 9 is the one on the right side in FIGS. 3 and 4, the conveyor chain 47 is driven by the operation of the drive motor 23.
Is rotated clockwise to engage the engagement pin 45a with the engagement recess 18a of the pallet 12 and move the pallet 12 to the right side parking rack 9 side. As a result, the wheels 17 of the pallet 12 roll on the traveling rails 37 of the pallet support member 31 through the transition rails 42 and onto the shelf rails 9a of the parking shelves 9 on the right side. It is transferred to the parking shelf 9 on the right side. Then, after the engagement pin 45a is disengaged from the engagement recess 18a by rotating from the carrier side to the return side of the conveyor chain 47, the engagement pin 18 is pushed back by the engagement pin 45b following this, and the pallet 12 is further moved. It can be moved and the pallet can be completely transferred to the parking rack 9. Therefore, in this state, the engagement pin 4
5a and 45b are moved to the right end of the lift 7.

After that, the pallet support member 31 is placed on the lift table 7 (center position) by the operation of the support member moving means 33.
Return to

If the parking rack 9 to which the pallet 12 is to be transferred is on the left side, the pallet support member 31 may be moved toward the left parking rack 9 side to rotate the conveyor chain 47 counterclockwise.

(Transfer of pallet from parking rack to lift)
When transferring the pallet 12 from the parking shelf 9 to the lift table 7, first, the pallet support member 31 is moved to the parking shelf 9 side by the support member moving means 33 while the lift table 7 is stopped at the target parking shelf 9 position. Move to.

Subsequently, the target parking rack 9 is changed to the one shown in FIGS.
If it is on the right side in, the pallet transfer means 32
When the conveyor chain 47 is rotated counterclockwise by this, the engagement pin 45b is sent from the return side of the conveyor chain 47 to the carrier side, and engages with the engagement recess 18a of the engagement piece 18 located on the hoistway 6 side of the pallet 12. Pallet 12
Is transferred from the shelf rail 9a to the traveling rail 37 through the transition rail 42. Then, the pallet support member 3
1 is returned to the original position by the support member moving means 33.

When the target parking rack 9 is on the left side, the pallet support member 31 may be moved to the left parking rack 9 side to rotate the conveyor chain 47 clockwise.

(Pallet calling control for warehousing) Next, pallet calling control for warehousing, which is a feature of the present invention, will be described with reference to the flowcharts shown in FIGS. 6 and 7. It should be noted that this flowchart is activated each time there is a pallet call command.

In FIG. 6, when there is a pallet call command, it is first determined in step S1 whether or not there is a pallet 12 on the lift table 7, and if the determination is YES, on the lift table 7 in step S2. It is determined whether the pallet 12 is an empty pallet on which no vehicle is placed. When the determination is YES, that is, the empty pallet 12 is further determined in step S3 whether or not the empty pallet 12 is being called for warehousing. If this determination is NO, that is, if the pallet 12 that has been emptied by the elevator 7 is returned to the original parking rack 9, step S
In step 4, the empty pallet 12 on the lift 7 is called to the loading / unloading section 11. Therefore, in this case, the pallet lateral transfer device 2
The empty pallet 12 can be called immediately without activating 1.

When the determination in step S2 is NO, that is, when the pallet 12 on the lift table 7 is loaded with a vehicle, it is determined in step S5 whether the pallet 12 on the lift table 7 is in the loading operation. To judge. This judgment is NO
At this time, that is, when the pallet 12 on the lift table 7 is not in the warehousing operation but in the unloading operation, the pallet 12 is used for warehousing of the next vehicle in step S6. Therefore, in this case, it is not necessary to elevate the elevating table 7 for calling an empty pallet after the warehousing work is completed.

When the determination in step S3 is YES, that is, when the empty pallet 12 on the lift table 7 is being called for loading, or when the determination in step S5 is YE.
At S, that is, when the pallet 12 on which the vehicle on the lifting platform 7 is placed is in the loading operation, and when the loading operation is being performed in the end, the pallet 12 on the lifting platform 7 is in the parking rack 9 of which floor in step S7. Of the pallet 12 of the first priority, and then in step S8, the same floor is searched for the floor of the first priority (hereinafter,
It is referred to as a priority floor), and it is searched whether or not there is an empty pallet 12 on the parking shelf 9 on the opposite side of the priority floor. If there is, the empty pallet 12 is called to the loading / unloading section 11 in step S9.
Therefore, in this case, after the warehousing work is completed, the empty pallet 12 can be pulled out onto the elevating table 7 without elevating the elevating table 7 from the warehousing floor.

When the determination in step S8 is NO, that is, when there is no empty pallet 12 on the opposite parking rack 9, as shown in FIG. 7, the pallet 12 on the lift 7 is parked in the right row in step S21. It is determined whether it is the shelf 9 or the parking shelf 9 in the left column.

If it is the pallet 12 of the parking shelves 9 in the right row, the empty pallets 12 are sequentially searched from the entry floor (storage / unloading section) 11 to the priority floor of the parking shelves 9 in the right row in step S22. Iki, and an empty pallet 12 on the floor in between
If there is, the empty pallet 12 on that floor is called to the loading / unloading section 11 (steps S23 and S26). Therefore, in this case, after the pallet 12 is transferred from the lift 7 to the parking rack 9 in the right row and the vehicle is loaded, the engagement pins 45a and 45b of the pallet lateral transfer device 21 are at the right end of the lift 7. The empty pallet 12 of the retrieved parking rack 9 in the right row can be engaged with the engaging pins 45a and 45b without being largely moved. In addition, since the empty pallet 12 for loading the next incoming vehicle is searched between the priority floor that is stopped for loading and the loading floor 11, and the empty pallet 12 is transferred to the loading floor 11, the moving distance of the lifting platform 7 is increased. Becomes shorter.

The entry floor 11 in the parking rack 9 in the right column
When there is no empty pallet 12 between the priority floor and the priority floor, the search range of the empty pallet 12 is expanded to the other floors in the right column in step S24, and the search is performed.
The empty pallet 12 on that floor is called to the loading floor 11 (steps S25 and S26). If there is no empty pallet 12 in the parking rack 9 in the right row, first, in step S28, the empty pallet 12 is sequentially loaded from the entry floor 11 to the priority floor in the parking rack 9 in the left row.
Next, in step S30, the search range of the empty pallet 12 is expanded to the other floor in the right column to perform the search. If there is an empty pallet 12 in such a search, the empty pallet 12 on that floor is called to the loading floor 11 (step S29,
S31, S32).

On the other hand, when the pallet 12 on the lifting platform 7 is that of the parking rack 9 in the left row in the determination in step S21, the pallet 12 on the lifting platform 7 is that of the parking rack 9 in the right row. Contrary to certain times, empty pallet 1 is first in order from the loading floor 11 to the priority floor in the order of the left column and the right column.
2 is searched, and then empty pallets 12 are searched for other floors (steps S28, S30, S22, S24).

The parking shelves 9, 9 on both the left and right rows are searched for empty pallets 12, and if there is no empty pallet 12, none of the empty pallets is found in step S34, and the search for pallets 12 is completed.

If it is determined in step S1 that there is no pallet 12 on the lift table 7, the current stop floor of the lift table 7 is searched for in step S10, and the pallet lateral transfer device 21 is checked in step S11. Dowel pin 45a,
It is determined whether 45b is at the left end or the right end of the lift 7. When the elevator platform 7 is stopped, the stop floor is the priority floor.

When the engaging pins 45a and 45b are at the left end, if there is an empty pallet 12 on the left side parking rack 9 of the elevator stop floor, which is the priority floor, this empty pallet 1
2 is called to the boarding floor 11 (steps S12 and S1)
5). Therefore, in this case, it is not necessary to move up and down the elevating table 7 to call the empty pallet 12, and it is not necessary to move the engagement pins 45a and 45b largely to engage the empty pallet 12. If there is no empty pallet 12 on the left side parking rack 9 of the elevator stop floor, it is searched whether or not there is an empty pallet 12 on the right side parking rack 9 of the same floor, and if there is, the empty pallet 12 is placed on the loading floor 11. It is called (steps S12, S14, S16).

On the other hand, when the engaging pins 45a and 45b are at the right end, the empty pallet 12 is placed in the order of the right side parking rack 9 and the left side parking rack 9 on the floor where the elevator is stopped, contrary to when it is at the left end.
Will be searched (steps S13 and S14).

If it is determined in step S14 that there is no empty pallet 12 on the left and right parking shelves 9, 9 on the elevator stop floor, which is the priority floor, as shown in FIG. 7, the engagement pins 45a, It is determined whether 45b is at the right end of the lift 7. Then, the engagement pins 45a and 45b
Is located at the right end of the lifting platform 7, as in the case where the pallet 12 on the lifting platform 7 is for the parking shelves 9 in the right column, the right column and the left column are first in order, respectively. The empty pallet 12 is sequentially searched from 11 to the priority floor, and then the empty pallet 12 is searched for other floors (steps S22, S).
24, S28, S30). In addition, the engagement pins 45a, 45
If b is at the left end of the lift table 7, the lift table 7 described above is used.
Similar to the case where the upper pallet 12 is that of the parking rack 9 in the right row, the left row and the right row are first in the order of the entry floor 11 respectively.
The empty pallets 12 are sequentially searched to the priority floor, and then the empty pallets 12 are searched for other floors (step S28,
S30, S22, S24).

In step S24 or S30,
To search the empty pallet 12 for other floors, specifically,
This is performed according to the flowcharts shown in FIGS. 8 and 9.

That is, in FIG. 8, first, in step S41, the priority floor (the floor to which the pallet 12 on the elevator platform 7 belongs or the stop floor of the elevator platform 7) is located above the entry floor (storage / unloading section) 11. Determine if it is on the ground floor.
In the following description, for the sake of convenience, the lowermost parking rack 9 of the parking tower 1 will be referred to as the first floor, and the parking racks 9, 9, ... Above it will be sequentially referred to as the second floor, the third floor ,.

When the priority floor is the ground floor above the entry floor 11, the count N is obtained in step S42.
Is reset to zero, the count N is incremented by 1 in step S43, and it is determined in step S44 whether or not the floor of the numerical value obtained by adding the count N to the priority floor is larger than the top floor of the parking tower 1, and the determination is In the case of NO, it is searched in step S45 whether there is an empty pallet 12 on the floor of the numerical value obtained by adding the count N to the priority floor, and if there is, the empty pallet 12 is called to the loading floor 11 (step S48). When it is determined in step S44 that the floor of the numerical value obtained by adding the count N to the priority floor is larger than the top floor of the parking tower 1, or in step S45, the empty pallet 12 is added to the floor of the numerical value obtained by adding the count N to the priority floor. If it is determined that there is not, it is determined in step S46 whether or not the floor of the numerical value obtained by subtracting the count N from the boarding floor is greater than zero,
If the determination is YES, the empty pallet 12 is placed on the floor of the numerical value obtained by subtracting the count N from the boarding floor in step S47.
If there is any, the empty pallet 12 is called to the entry floor 11 (step S48).

In step S47, the entry floor 1
Empty pallet 12 on the floor of the number obtained by subtracting the count N from 1
If it is determined that there is not, the process returns to step S43,
Increment the count N. Therefore, according to the above flow, the search range of the empty pallet 12 is alternately expanded to the upper floors above the priority floor and the lower floors below the entry floor 11 one by one, and the empty pallet 12 is searched. By the search, it is possible to retrieve the empty pallet 12 on the parking rack 9 on the nearest floor from the range between the priority floor and the entry floor 11, which is the original search range, and call it to the entry floor 11. It can be performed quickly and the waiting time can be shortened.

In step S46, the entry floor 1
If it is determined that the floor of the numerical value obtained by subtracting the count N from 1 is smaller than zero and that the floor of the numerical value obtained by adding the count N to the priority floor is larger than the ground floor of the parking tower 1 in step S49, In S50, it is assumed that there is no empty pallet 12 in either the left or right row of the parking tower 1, and the search for the empty pallet 12 is completed.

On the other hand, in step S41, when the priority floor is a floor lower than the entry floor 11, that is, the basement floor, FIG.
As shown in, the search range of the empty pallet 12 is entered on the first floor
The empty pallet 12 is searched by alternately expanding one floor above the first floor and one floor below the priority floor (step S).
51-S59).

[0058]

As described above, according to the first aspect of the present invention, the parking shelves are provided in layers on the ground and the basement along the hoistway, and the loading / unloading section which is the entry floor of the vehicle is hoisted. In the control device of the elevator type parking device provided in the middle of the, when receiving the pallet call command and searching for the pallet to be called, the parking rack on the stop floor of the elevator or the floor to which the pallet on the elevator belongs belongs to the first This is the first priority
By searching for an empty pallet with the parking rack on the floor between the floor of the priority order and the loading / unloading section as the second priority, it is possible to increase the movement distance of the lifting platform to call the empty pallet to the loading / unloading section. Since it can be shortened, the empty pallet can be called quickly and the waiting time can be shortened.

According to the invention of claim 2, the second aspect
Even if there is no empty pallet on any of the parking shelves on each floor of the priority order, the search range is alternately expanded to the upper floor and the lower floor one by one to search for an empty pallet, and the empty pallet can be called quickly. Therefore, the waiting time can be shortened.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an elevator parking apparatus according to an embodiment of the present invention.

FIG. 2 is a partially omitted plan view showing a lift of the parking device.

FIG. 3 is a plan view of a pallet lateral transfer device of the parking device.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is a block diagram showing a control system of the parking device.

FIG. 6 is a diagram showing a part of a flowchart of pallet call control.

FIG. 7 is a diagram showing a part of the same flowchart.

FIG. 8 is a diagram showing a part of an empty pallet search routine for another floor.

FIG. 9 is a diagram showing a part of a search routine of the same.

[Explanation of Codes] A Parking device 5 Elevator 6 Hoistway 7 Elevating platform 9 Parking shelf 11 Loading / unloading part (loading floor) 12 Pallet 21 Pallet horizontal transfer device (pallet horizontal transfer means) 61 Controller 61a CPU (control means) 61b Memory (Storage Means) 62a Entry Request Button (Pallet Call Command Output Means) 64 Elevator Table Position Detector 66 Elevator Platform Pallet Detector

Claims (2)

[Claims] 1. An elevator having an elevator for supporting a pallet on which a vehicle is placed and ascending and descending; a plurality of parking shelves arranged in a hierarchy along the hoistway of the elevator to accommodate each vehicle together with the pallet; A pallet side for connecting a loading / unloading unit formed at an intermediate position of the hoistway for loading and unloading a vehicle, and the pallet for lateral transfer between the lifting platform and each parking rack. In an elevator parking apparatus including a transfer means, a call command output means for calling a vehicle pallet to a loading / unloading section, and a storage means for storing, for each parking rack, the presence or absence of an empty pallet on which a vehicle is not placed. And a stop floor detection means for detecting the stop floor when the elevator is stopped when the pallet call command is issued, and the elevator platform puts the pallet on when the pallet call command is issued. When the pallet is being operated, the pallet detection means for detecting which pallet is on the floor and the pallet call command, when searching for the pallet to be called, the pallet detection means detects whether the pallet should be called or not. The parking rack on the stop floor of the platform or the floor to which the pallet on the elevator belongs is the first priority, and the parking rack on the floor between the floor of the first priority and the loading / unloading section is the second priority. As a pallet search means for searching an empty pallet based on the empty pallet information by the storage means, and a control for driving and controlling the elevator and the pallet lateral transfer means so as to convey the empty pallet searched by the search means to the loading / unloading section. An elevator-type parking device control device comprising: 2. A control device for an elevator parking apparatus according to claim 1, wherein the pallet searching means sets a search range to an upper floor when there is no empty pallet on any of the parking shelves on each floor of the second priority. A control device for an elevator-type parking device, characterized by alternately expanding one floor each to a lower floor and searching for an empty pallet.