JP2728343B2 - Elevating pallet control device for multi-story parking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a multi-story parking device,
The present invention relates to an elevating pallet control device for lowering an elevating pallet on which a vehicle to be taken out is loaded.

[0002]

2. Description of the Related Art As shown in FIG. 8 and FIGS.
Is pressed (Step S2), and then the driving button 33 is pressed (Step S3), and the pallet 1
8 starts to descend (step S4), and the locking member 26 of the fall prevention device 19 of the lifting pallet 18 retreats to allow the lifting pallet 18 to descend.
If the locking member 26 is not retracted due to the failure of the motor, the magnetic sensor 28 does not turn on (step S5),
3 is turned on (step S3), and 0.3 seconds after the elevating pallet 18 starts to descend (step S4), the elevating pallet 18 stops when it slightly descends (step S3).
6).

At this point, the fall prevention device 19 repairs the malfunction.

[0004]

However, the operator pushes the operation button 33 again without noticing the failure of the fall prevention device 19 when the lifting pallet 18 stops (step S3), and lowers the lifting pallet 18 (step S3). S
4). Then, the lifting pallet 18 descends a little further,
Stop again after 3 seconds. By repeating this, if one of the fall prevention devices 19 provided at the four front, rear, left, and right sides of the lifting pallet 18 has failed, for example, At this point, the engaging member 23 is engaged with the locking member 26 to prevent the descent of the elevating pallet 18 because the descent of the elevating pallet 18 is allowed at other locations of the fall prevention device 19. Vehicle 41 may fall.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to prevent the lifting pallet from lowering even if the operator presses the operation button again without noticing the failure of the fall prevention device, so that the lifting pallet is not tilted. .

[0006]

In order to achieve the above object, the present invention provides a multi-story parking apparatus in which a lifting pallet on which a vehicle to be taken out is loaded is lowered to a lower stage. Provided on the suspension,
A locking member that is advanced to prevent the lifting pallet from falling while retracting to allow the lifting pallet to descend, and provided on the lifting pallet, engages when the lifting pallet is lowered when the locking member is in the advanced position. An engagement member, and a retraction confirmation sensor for detecting that the locking member has retreated,
When a predetermined time has elapsed from the start of the lowering of the lifting pallet, when the retraction confirmation sensor does not detect the retraction of the locking member, the lifting pallet stop control means for stopping the lifting pallet, and the stopped lifting pallet is commanded by a predetermined switch. Lifting pallet lifting control means for raising the pallet.

[0007]

When the lifting / lowering chain is cut off while the lifting / lowering pallet is stopped, the lifting / lowering pallet falls. However, the engaging member provided on the lifting / lowering pallet engages with the locking member provided on the suspension body, and the lifting / lowering pallet is moved. Fall is prevented. Next, when the elevating pallet on which the vehicle is loaded is lowered to attempt to leave the vehicle, after a certain period of time has elapsed since the elevating pallet started to descend, if the evacuation confirmation sensor detects the evacuation of the locking member, the elevating pallet remains in the lower stage. Descend to

On the contrary, if the retraction is not detected, the lifting pallet is stopped by the lifting pallet stop control means. When a predetermined switch command is given to the stopped lifting pallet, the lifting pallet is raised by the lifting pallet lifting control means.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a four-stage four-row multi-story parking device 1, which comprises a lower stage 2, a second stage 3 a and a third stage 3.
b, middle row 4, upper row 4, first row 5, and second row 6
The vehicle can be parked in the middle row 6 composed of the third row 6a and the third row 6b and in the respective sections composed of the fourth row 7.

The parking device 1 includes a left support 8a, an intermediate support 8b, a right support 8c, a middle frame 9 composed of a two-stage frame 9a and a three-stage frame 9b, and an upper frame 10. And are formed in a lattice shape. A lower pallet 11 is provided on the lower tier 2 so as to be able to traverse, and a rectangular middle hanger 12 is provided on the middle frame 9 so as to be traversable, and a lifting and lowering chain 13 from the middle hanger 12 is provided. The middle lifting pallet 14 suspended by the above is provided so as to be able to move up and down by driving the lifting motor 15.

A rectangular upper hanging member 16 is fixed to the upper frame 10, and an upper lifting pallet 18 suspended by an elevating chain 17 is fixed to the upper hanging member 16. It is provided so as to be able to move up and down by driving the negative electrode 15. 1
The upper and lower pallets 1 in the lower 2 and middle 3 sections of row 5
The lower pallet 11 and the middle pallet 14 are eliminated so that the space 8 moves up and down to secure a space.

The upper hanging member 16 and the upper pallet 1
8 and between the middle hanging body 12 and the middle lifting pallet 14, drop prevention devices 19 for preventing the falling pallets 14, 18 from falling when the lifting chains 13, 17 are cut off are provided respectively. Upper structure 1
FIG. 2 shows the device 19 for preventing the fall between
This will be described with reference to FIGS.

Numerals 19 denote drop-prevention devices provided at four positions in the front, rear, left and right directions of the upper hanging member 16 and the upper lifting pallet 18. The fall preventing device 19 is mounted on a bracket 20 suspended from the upper hanging member 16. Device 21 and upper pallet 1
6 and an engaging member 23 fixed to the side frame 22. When the solenoid 24 is energized, the actuator 21 is in the retracted position indicated by the dashed line, and the solenoid 24
When the demagnetizing is performed, the locking member 26 which is in the advanced position of the solid line due to the elastic force of the spring 25, the magnet 27 interlocking with the locking member 26, and when the locking member 26 is in the retracted position,
It comprises a magnetic sensor 28 as an evacuation confirmation sensor for detecting the magnet 27.

The engaging member 23 comprises a mounting portion 29 to which the lifting chain 17 is mounted, and an engaging portion 30 located slightly above the locking member 26.
6 is engaged when the lifting pallet 18 is lowered at the advanced position, and at the retracted position of the locking member 26, the lifting pallet 18 is allowed to lower. 1 and 5, 3
Reference numeral 1 denotes a control box provided on the intermediate support 8b. The control box 31 is provided with a pallet selection button 32 and an operation button 33 on the front surface.
A microcomputer program for controlling the lifting / lowering pallet control device 34 is installed.

The lifting / lowering pallet control device 34 includes a lifting / lowering pallet stop control means 36 for stopping the lifting / lowering motor 15 and stopping the lifting / lowering pallets 14 and 18 in response to signals from the magnetic sensor 28 and the timer 35, and an operation button. When the user presses the button 33, the elevator motor 15 is driven and the elevator pallets 14, 1
The lifting pallet lifting control means 37 for raising the lifting pallet 8 and the lifting pallets 14 and 18 when the upper limit switch 38 is turned on, the motor 15 for lifting and lowering is rotated in the reverse direction to raise and lower the pallet 14.
A lifting / lowering pallet lowering control means 39 for lowering the motor 18; and a total operation stop control means 40 for stopping the raising / lowering motor 15 and the like by a signal from the magnetic sensor 28 and the timer 35 again to stop the entire operation. Have been.

Reference numeral 42 denotes a lower limit switch for stopping the lifting pallets 14, 18 at the lower stage 2 when the lifting pallets 14, 18 are lowered. The present invention is configured as described above, and the operation will be described below. First, when the upper lifting chain 17 is cut off while the upper lifting pallet 18 is stopped, the upper lifting pallet 18 falls, but the upper lifting pallet 18 falls.
The engaging portion 30 of the engaging member 23 provided at the upper
The upper pallet 18 is prevented from falling by engaging with the locking member 26 at the advanced position.

Next, when the vehicle 41 on the upper lifting pallet 18 is to be unloaded, the pallet selection button 32 is pressed (step S2), and then the operation button 33 is pressed (step S3). , The solenoid of the actuator 21 is excited and the locking member 2
6 is retracted from the advanced position to the retracted position (step S
4) The four magnetic sensors 28 are turned ON by the magnet 27 (step S5).

The upper elevating pallet 18 continues to descend without the engaging member 23 of the upper elevating pallet 18 engaging with the locking member 26 of the upper hanging member 16 (step S).
7) The lower limit switch 42 is opened to stop at the lower stage 2 (step S8). By the way, when the timer 35 measures 0.3 seconds after the upper pallet 18 starts lowering (Step S4), it is determined that the locking member 26 does not retreat due to a failure and at least one of the four remains at the advanced position. , One of which is a magnetic sensor-2 by the magnet 27.
8 is not turned on (step S5), the lifting / lowering pallet 18 is stopped by the lifting / lowering pallet stop control means 36, and the upper lifting pallet 18 is slightly lowered (the engaging member 23 is engaged with the locking member 26). (Slightly before the combination) (Step S10).

Thereafter, when the operation button 33 is pressed (step S11), the lifting motor 15 is driven by the lifting pallet lifting control means 37, and the upper lifting pallet 18 is raised (step S12). When the upper lifting pallet 18 turns on the upper limit switch 38 (step S13), the lifting motor 15 is reversely rotated by the lifting pallet lowering control means 39 to lower the upper lifting pallet 18 (step S14). When the timer 35 measures 0.3 seconds after the start of the movement of the magnetic sensor 18 (step S14), the four magnetic sensors 28 are turned on (step S15).
In this case, the upper pallet 18 descends as it is (step S6), and if at least one of the four pallets 18 is not ON again (step S15), the upper pallet 18 is slightly lowered as before. At the same time, the ascent / descent motor 15 and the like are stopped by the all-operation stop control means 40, and the entire operation is stopped (step S17).

Thereafter, the operating device 21 of the fall prevention device 19
To repair.

[0021]

As described above, according to the present invention, when the elevating pallet descends and the locking member does not return to the evacuation position due to the failure of the fall prevention device, the evacuation confirmation sensor is used after a certain period of time from the start of the elevating pallet lowering. Detecting and stopping the lifting pallet by the lifting pallet stop control means, and then pressing a predetermined switch, the lifting pallet lifting control means raises the lifting pallet. Lower the lifting pallet,
Engage the engaging member of the malfunctioning fall prevention device with the locking member, and allow the non-failure fall prevention device to descend,
The lifting pallet does not tilt, and the vehicle on the lifting pallet does not fall.

[Brief description of the drawings]

FIG. 1 is an overall view of a multi-story parking device.

FIG. 2 is a perspective view of a lifting pallet and a hanging body.

FIG. 3 is a detailed view of the fall prevention device of FIG. 2;

FIG. 4 is a partial sectional view of an operation device of the fall prevention device of FIG. 3;

FIG. 5 is a perspective view of a control box.

FIG. 6 is a flowchart of the apparatus of the present invention.

FIG. 7 is a block diagram of the device of the present invention.

FIG. 8 is a flowchart of a conventional apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Multilevel parking device 12 Middle suspension body 14 Middle lifting pallet 16 Upper suspension body 18 Upper lifting pallet 23 Engaging member 24 Solenoid 26 Locking member 28 Magnetic force sensor 34 Vertical pallet control device 36 Vertical pallet stop control means 37 Vertical pallet Ascent control means

Claims (1)

(57) [Claims] 1. A multi-story parking device in which a lifting pallet on which a vehicle to be taken out is loaded is lowered to a lower stage, provided on a suspension body on which the lifting pallet is suspended to prevent the lifting pallet from falling. While
A locking member that retreats to allow the lifting pallet to descend, and an engagement member that is provided on the lifting pallet and engages when the lifting pallet is lowered when the locking member is in the advanced position, and the locking member retracts. An evacuation confirmation sensor for detecting that the elevating pallet is stopped when the evacuation confirmation sensor detects no evacuation of the locking member after a lapse of a predetermined time from the start of the lowering of the elevating pallet; A lift pallet control device for a multi-story parking device, comprising: a lift pallet lift control means for raising a stopped lift pallet in response to a command from a predetermined switch.