JPH0714564Y2 - Safety device for mechanical parking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a safety device for a mechanical parking device.

[Prior Art] In recent years, various mechanical parking devices have been put into practical use for the purpose of solving difficulties in parking lots, ensuring efficient parking, and the like.

A vertical circulation type mechanical parking device will be described below with reference to FIG.

A pair of front and rear drive sprockets 2 and driven sprockets 3 are arranged above and below the inside of the tower 1, and an endless chain 4 is provided between the corresponding drive sprockets 2 and driven sprockets 3.
And attach the attachments 5 to the chains 4 at predetermined intervals, and rotatably suspend and support a vehicle carrier (hereinafter referred to as a cage 7) via a suspension shaft (not shown) between the front and rear attachments 5. Then, the vehicle 6 in the cage 7
It supports the pallet (not shown) on which is mounted.

A guide rail 8 for guiding a guide roller (not shown) attached to the cage 7 is provided in the upper folded portion A of the cage 7 inside the tower 1, and similarly, a guide roller (not shown) attached to the cage is provided in the lower folded portion. Guide rails 8'for guiding are arranged, and vertical guide rails 9 for guiding the cage 7 are arranged on both sides inside the tower 1.

Then, after the vehicle 6 is loaded into the empty cage 7 located at the bottom of the tower 1, the drive sprocket 2 is driven to move the chain 4 and each cage 7, and another cage 7 is located at the bottom of the tower 1. By doing so, the vehicle 6 in the cage 7 can be stored in the vertical portion or the upper folded portion A of the tower 1, and the vehicle 6 in the other cage 7 can be discharged from the lowermost portion of the tower 1. Has become.

In the mechanical parking device as described above, a safety device for detecting the position of the vehicle 6 with respect to the pallet at the entrance at the time of warehousing and positioning the vehicle 6 is conventionally provided, but the garage is stored in the tower 1. After that, a safety device for detecting the state of the vehicle carrier (the cage 7) on which the vehicle 6 is placed and stopping the drive of the mechanical parking device when there is an abnormality is not provided.

[Problems to be Solved by the Invention] However, in the mechanical parking device, since the state of the vehicle carrier 7 inside cannot be detected, a failure or the like occurs in the vehicle carrier 7 for some reason. However, the mechanical parking device would continue to be driven without noticing any failure, and when the operator happened to notice an abnormal sound and stop the drive, the vehicle carrier 7 inside was destroyed. An accident occurred in which several vehicles 6 were damaged.

FIG. 6 is an example of such an accident that occurred in a vertical circulation type mechanical parking device, and when the cage 7 was moved counterclockwise, it was deformed due to the causes described below.
7a derails from the guide rail 8 of the upper folded portion A and is greatly deformed, which causes the subsequent cage 7b to be derailed and deformed in a chain manner, and the vehicles 6a and 6b riding on the cages 7a and 7b.
Is a wreck.

In the above-mentioned accident example, the vehicle carrier 7 is replaced by the guide rail 8
At the folded-back portion where the support becomes unstable due to the transfer between the rails, the vehicle carrier 7 having the failure is properly guided by the guide rails 8.
It turns out that he couldn't get in the way and caused the accident.

There are various possible causes of the failure of the vehicle carrier inside the above-mentioned mechanical parking device, and the following are typical examples thereof.

1.Abnormality due to unloading vehicle This is caused by forgetting to pull the side brake or a half-door, which causes the vehicle or door to stick out of the cage, the vehicle stop position to shift, and the cage to have an unbalanced load. It is that the accessory sticks out of the cage.

2. Cage abnormality This means that the cage may be deformed, broken, or broken, or the guide rollers attached to the cage may be cracked or burned due to contact with the incoming vehicle or deterioration over time.

3. Abnormal door protector This is a door protector for protecting vehicle doors mounted on pallets (some are fixed or movable)
However, it is to get out of the cage due to contact of the vehicle, breakage of the welded part, detachment of the drive wire, and deterioration.

4. Occurrence of an earthquake Due to the causes of failures 1 to 4 above, the vehicle carrier may fail.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a safety device for a mechanical parking device that detects an abnormality in a vehicle carrier inside the mechanical parking device and stops the driving of the mechanical parking device. It is a thing.

[Means for Solving the Problems] The present invention relates to a mechanical parking apparatus provided with a plurality of vehicle carriers capable of vertically circulating, in the vicinity of a line connecting upper and lower folding points of the vehicle carrier, and an upper folding part. At a position just below the passage of the vehicle transport tool, which is slightly below, a tactile line extending in the longitudinal direction of the vehicle transport tool is pulled, and at one end of the tactile line, a plug with both pins conducting is attached. ,
A safety device for a mechanical parking device, characterized in that an outlet is attached in the middle of a circuit for supplying electric power to a motor for driving the mechanical parking device so that power supply can be turned on and off by inserting and removing the plug. It is a thing.

In this case, an insulating color tape may be attached to the tactile line as a mark.

[Operation] In the vertical circulation type mechanical parking device, when the defective vehicle carrier cannot reach the upper folding part, the vehicle carrier cannot be successfully transferred between the guide rails and the vehicle carrier overturns. , By providing a tactile line at a position directly below the passage under the vehicle carrier near the line connecting the upper and lower turning points, when the vehicle carrier comes in contact with the tactile line, the plug will come out of the outlet and Since the power supply is directly cut off and the device is reliably stopped, the occurrence of an accident can be almost completely prevented.

Further, the color tape attached to the tactile lines allows the tactile lines to be easily identified during maintenance.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of the present invention.

Further, FIGS. 1 and 2 show the upper folded portion A of the vertical circulation type mechanical parking device of FIG. 5, and the structure of the mechanical parking device itself is the same as that of FIG.

In the figure, 22 is a girder provided in the upper folded portion A, 23 is an upper cage rail, 24 is a motor fixed to the girder 22, 25 is a brake connected to the rotary shaft of the motor 24, 26 is a motor 24 and a brake 25. Speed reducer connected via drive shaft 27, 28
Is a drive sprocket rotatably mounted on the top of a gear frame 29 that houses the reduction gear mechanism 26 and connected to the reduction gear mechanism 26. 30 is an attachment mounted at a required interval on a chain 31 wound around a drive sprocket 28, 32
Is a vehicle carrier (hereinafter referred to as a cage 32) suspended and supported by the attachment 30 via a suspension shaft 33, and 34 is a cage 32.
A guide rail for guiding the guide roller 35 attached to the upper part. A line connecting the upper and lower turning points of the upper turning portion A where the cage 32 turns from rising to lowering (hereinafter, turning line 36
The position immediately below the passing locus 37 at the bottom of the cage 32 in the vicinity of
In 38, the hook 39 is attached to one inside of the gear frame 29 supporting the drive sprocket 28, the eyebolt 40 is attached to the other inside, and one end of the tactile line 41 such as a wire or a fishing line is used as a vehicle transport tool failure detection sensor. The hook 39
After connecting the other end to the eyebolt 40, the other end is connected to a household appliance plug 42, and the plug 42 is inserted into an outlet 43 fixed to the gear frame 29 on the corresponding side.

An insulating color tape 44 or the like is attached to the tactile line 41 as a mark. The plug 42 has a cord 46 connecting between both pins 45, and the outlet 43 is a drive sprocket.
28 Circuit 48 that connects the motor 24 for driving and the power supply 47 of the motor 24
Connect in series inside.

Incidentally, 49 is a drive switch provided in the circuit 48, and 50 is an emergency stop switch.

The mechanical drive parking device itself is operated in the same manner as in FIG.

At this time, by turning on the drive switch 49 of the circuit 48, a current flows from the power supply 47 to the motor 24 to drive the motor 24, and by driving the motor 24, the brake 25, the drive shaft 27, and the reduction mechanism 26 are passed. The drive sprocket 28 is driven to rotate.

Then, some abnormality occurs in the mechanical parking device, for example, an abnormality due to a parking vehicle, an abnormality in the cage 32, an abnormality in a door protector (not shown), an earthquake, etc., and the cage 32 in which the protrusion or the inclination due to an unbalanced load occurs due to the abnormality. When the main body of the mechanical parking device, the upper cage rail 23, or the like is brought into contact with the main body and causes a failure such as deformation or damage, the failed cage 32 is replaced by the upper folded portion A.
When the direction is changed from ascending to descending with, the failed cage 32 cannot be transferred to the guide rail 34 and derails and falls, or the cage 32 is greatly damaged and causes an accident.

In the present invention, the tactile line 41 is stretched on the turn-around line 36 of the upper turn-around portion A where the cage 32 turns from upward to downward, and the tactile line 41 is stretched at the position 38 immediately below the passage locus 37 below the cage 32. When passing through the upper folded portion A, the cage 32 is hooked on the tactile line 41, the tactile line 41 is pulled by the hooked cage 32, and thereby the plug 42 connected to the tactile line 41 is detached from the outlet 43 and the motor. The circuit 48 that sends current to 24 is cut off directly.

As a result, the drive of the mechanical parking device can be reliably stopped before a serious accident occurs.

In the present invention, as a result of analyzing past accident examples, in normal times, the guide rail 34 exists, so that the cage 32 may squeeze out to the outside but not to the inside,
In the event of an abnormality, it was found that the cage 32 rarely rides on the guide rail 34 and sticks out to the outside, and it often derails downward from the guide rail 34 and sticks out to the inside.
By setting the mounting position of 41 to the position 38 directly below the passage locus 37 below the cage 32 on the folding line 36 of the upper folding portion A,
With only one tactile line 41, the malfunction of the cage 32 can be detected reliably without malfunction and the accident can be prevented in advance.

Further, since the tactile line 41 is accurately provided on the folding line 36, the same detection ability can be obtained both when the cage 32 moves clockwise and when it moves counterclockwise. However, there is no practical problem even if the tactile line 41 is slightly displaced from the folding line 36.

Furthermore, by attaching the color tape 44 as a mark to the tactile line 41, it is possible to confirm at a glance during maintenance.

Furthermore, since the plug 42 and the outlet 43 for household appliances are used, the structure is inexpensive and the structure is simple, and it is possible to easily add the existing mechanical parking device.

The safety device for the mechanical parking device of the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

[Advantages of the Invention] As described above, according to the safety device for a mechanical parking device of the present invention, various excellent effects as described below can be obtained.

Based on the results of analysis of past accident examples, by providing the vehicle transport tool failure detection sensor at a position just below the passing path under the vehicle transport tool on the approximate folding line of the vehicle transport tool in the upper folding section, one tactile line It is possible to detect the failure of the vehicle carrier with certainty without any malfunction and with certainty.

By attaching a plug to one end of the tactile line and inserting it into an outlet provided in the middle of the power supply circuit, the device can be stopped directly and reliably when an abnormality is detected.

By attaching color tape to the tactile lines, you can easily identify the tactile lines during maintenance.

[Brief description of drawings]

FIG. 1 is a side view of an upper folded portion of a vertical circulation type mechanical parking device showing an embodiment of the present invention, and FIG. 2 is a side view of FIG.
II-II arrow view, FIG. 3 is an exploded view of the plug used in FIG. 1, FIG. 4 is a circuit diagram of FIG. 1, and FIG. 5 is a part of a general vertical circulation type mechanical parking device. A broken front view and FIG. 6 are situation diagrams of an accident that occurred in a vertical circulation type mechanical parking device. In the figure, 32 is a cage as a vehicle carrier, 36 is a line connecting upper and lower turning points, 37 is a passing locus, 38 is a position directly below, 41 is a tactile line as a vehicle carrier failure detection sensor, 59 is an upper entrance,
A indicates an upper folded portion.

Front page continuation (72) Inventor Katsuyuki Hashimoto 2-2-1 Otemachi, Chiyoda-ku, Tokyo Ishi Kawashima Harima Heavy Industries Ltd. (72) Inventor Shozaburo Makino 2-2-1 Otemachi, Chiyoda-ku, Tokyo Ishikawajima-Harima Heavy Industries Co., Ltd. Head Office (56) References: 62-187050 (JP, U) JP 57-36387 (JP, B2) JP 1-13157 (JP, Y2)

Claims (2)

[Scope of utility model registration request] 1. In a mechanical parking apparatus provided with a plurality of vehicle carriers so as to be able to circulate vertically, in the vicinity of a line connecting the upper and lower folding points of the vehicle carrier, the upper folding portion passes under the vehicle transportation device. A tactile line extending in the longitudinal direction of the vehicle carrier is stretched at a position slightly below the trajectory, and a plug in which both pins are conducted is attached to one end of the tactile line.
A safety device for a mechanical parking device, characterized in that an electrical outlet is attached in the middle of a circuit for supplying electric power to a motor for driving the mechanical parking device so that power supply can be turned on and off by inserting and removing the plug. 2. The safety device for a mechanical parking device according to claim 1, wherein an insulating color tape is attached to the tactile line as a mark.