JPH09124278A - Overrun detection device for chain hoisting motor in high rise parking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a suspension switch operation member from being damaged by providing an operation member for a chain hoisting motor which is actuated by the contact of the switch operation member when it is tilted outward, in the outer side of the switch operation member. SOLUTION: A switch operation member 59 is provided in the outer side of the rear end part of a chain 35, which is tilted outward as the rear end part of the chain 35 is tilted. An operation member 67 for the suspension switch 49 of a chain hoisting motor is disposed at the outer side of the switch operation member 59. The operation member 67 is projected out of the suspension switch 49 in the horizontal direction. Even if the terminal end part of the chain 35 has been delivered, the chain hoisting motor is overrun, and when the chain 35 is furthermore delivered, the switch operation member 59 is tilted outward as the chain 35 is tilted, it is brought into contact with the operation member 67 for the suspension switch 49, so that the suspension switch 49 is thereby actuated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overrun detection device for a chain winding motor in a multilevel parking system.

[0002]

2. Description of the Related Art Conventionally, as a multi-level parking apparatus such as a two-level parking apparatus, one in which an elevating / lowering body composed of a multi-level parking pallet is lifted and lowered by winding a chain is known. In such a multi-level parking device, if the chain is extended beyond the safety limit, the chain may come off, the elevator body may be lowered more than necessary, and the device may be damaged or damaged.

Therefore, conventionally, in such a three-dimensional parking apparatus, it is obliged to mount an overrun detecting device for detecting an overrun of a chain winding motor for winding a chain. Conventionally, as such an overrun detection device, for example, one disclosed in Japanese Utility Model Publication No. 62-25517 is known.

In the overrun detecting device disclosed in this publication, the rear end of the lifting / lowering body lifting chain suspended on a sprocket is fixed to a fixed portion, and the rolled-up chain is slackened in a U-shape. Is formed. And
The operating member for the stop switch of the chain winding motor is located inside the slack portion, and the operating member is operated by the contact of the chain caused by the unwinding of the chain.

[0005]

However, in such a conventional overrun detecting device, the operating member of the stop switch is directly actuated by the contact of the chain, so that the operating member is easily damaged. . The present invention has been made to solve the above-mentioned conventional problems, and provides an overrun detection device for a chain hoisting motor in a three-dimensional parking device that can significantly reduce the damage to the operating member of the stop switch as compared with the related art. The purpose is to provide.

[0006]

According to a first aspect of the present invention, there is provided a chain hoisting motor overrun detecting device, wherein a rear end of a chain for raising and lowering an elevating body suspended from a sprocket is fixed to a fixed portion and hoisted. And a switch actuating member that is inclined outward toward the rear end of the chain is formed on the outer side of the rear end of the chain. An operating member for stopping the chain hoisting motor that is operated by contacting the switch operating member when the switch operating member is tilted outward is disposed outside the switch operating member. .

According to a second aspect of the present invention, there is provided the overrun detecting device for the chain winding motor in the multi-level parking apparatus according to the first aspect, which is a malfunction that prevents the switch operating member below the operating member from moving toward the operating member side. It is characterized in that a prevention member is arranged.

[0008]

In the overrun detection device for the chain hoisting motor in the multi-storied parking system according to the first aspect, when the chain is unwound to the terminal end, the portion where the switch actuating member is mounted inclines, and the switch actuating member is The switch actuating member comes into contact with the operating member of the stop switch of the chain hoisting motor, and the stop switch is operated.

In the overrun detection device for the chain hoisting motor in the multilevel parking system according to the second aspect, the malfunction preventing member disposed below the operating member prevents the switch operating member from moving toward the operating member. That is, when it is not necessary to operate the stop switch in the vertical state of the chain where the switch operating member is mounted, the switch operating member is also in the vertical state, so the lower part of the switch operating member must be moved to the operating member side. By blocking, the movement of the entire switch operating member toward the operating member is blocked.

[0010]

An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of the overrun detection device of the present invention, and FIG. 2 shows a multilevel parking device in which the overrun detection device of FIG. 1 is arranged. The three-dimensional parking apparatus shown in FIG. 2 is an underground storage type two-stage type three-dimensional parking apparatus, and the portion of the chain double-dashed line is stored underground.

In FIG. 2, reference numeral 11 is an upper pallet and reference numeral 13 is a lower pallet. The lifting body 15 including the upper pallet 11 and the lower pallet 13 has four
Books are connected by pallet connecting columns 17. In the basement, four pillars 1 are located outside the lower pallet 13.
9 are erected.

The drive shaft 2 is provided on the upper part of the two pillars 19 on one side.
1 is rotatably and horizontally bridged. Sprockets 23 and 25 are fixed to one side of the drive shaft 21 at intervals, and a sprocket 27 is fixed to the other side. A chain hoisting motor 29 is arranged on the pillar 19 on one side of the drive shaft 21.

A sprocket 31 is fixed to the rotary shaft of the chain winding motor 29, and a drive chain 33 is wound around the sprocket 31 and the sprocket 23 of the drive shaft 21. One side of a hanging chain 35 is wound around the sprockets 25 and 27 of the drive shaft 21.

The chain 35 is guided to the bottom surface of the lower pallet 13 via the sprocket 37 on one side of the lower pallet 13, passes through the bottom surface, and then passes through the sprocket 39 on the other side of the lower pallet 13 to form the column 19. It is guided and fixed to the upper end. In FIG. 2, reference numeral 41 indicates a control panel and reference numeral 43 indicates an operation panel. Reference numeral 45,
Reference numeral 47 denotes a lower limit switch and an upper limit switch, reference numeral 49 denotes a stop switch, and reference numeral 51 denotes a balance chain.

In the above-mentioned three-dimensional parking apparatus, when the chain winding motor 29 is driven, the drive shaft 21 is rotated through the drive chain 33, and the rotation of the sprockets 25 and 27 causes the chain 35 to be wound and unwound. The lower pallet 13 and the upper pallet 11 are moved up and down.

FIG. 1 shows details of a sprocket 25 and its vicinity in which an embodiment of the overrun detection device of the present invention is arranged. Reference numeral 21 denotes a drive shaft supported by the column 19, and the drive shaft 21 has the sprocket 2
5 is fixed. As shown in FIG. 3, a chain 35 for lifting the lifting body 15 is suspended on the sprocket 25.

The rear end of the chain 35 is attached to the bracket 5
It is fixed to a fixing portion 55 which is fixed to the column 19 via the pin 3. A slack portion 57 is formed on the chain 35 between the fixed portion 55 and the sprocket 25 so that the rolled-up chain 35 hangs down in a U shape. A switch actuating member 59 is attached to the outside of the rear end of the chain 35 so as to follow the inclination of the chain 35 at the rear end and incline outward.

The switch actuating member 59 has a U-shaped cross section as shown in FIG. 4, and is arranged so as to cover the outside of the chain 35 as shown in FIG. A bolt hole 5 through which a bolt 61 is inserted is provided below the switch operating member 59.
9a are formed. The bolt 61 is inserted between the pin members 63 of the chain 35, and the tip of the bolt 61 is screwed into the fixing fitting 65.

Outside the switch actuating member 59, as shown in FIG. 6, an operating member 67 of the stop switch 49 for the chain winding motor 29 is arranged. The stop switch 49 includes a bracket 71 fixed to the horizontal column 69.
It is fixed to. The operation member 67 is the stop switch 4
It is arranged so as to project from 9 in the horizontal direction.

Below the operating member 67, a malfunction preventing member 73 for preventing the lower part of the switch operating member 59 from moving toward the operating member 67 is arranged. The malfunction prevention member 73 is L-shaped and is fixed to the bracket 71 together with the stop switch 49. In the overrun detection device described above, when the chain 35 is extended to the terminal end and the chain hoisting motor 29 is normally stopped by the operation of the lower limit switch 45, as shown in FIG. 3, the switch operating member 59 is in the vertical state. In the chain 35
Feeding is stopped.

On the other hand, when the lower limit switch 45 does not operate normally, the chain winding motor 29 overruns, and the chain 35 is further extended, as shown in FIG. The chain 35 tilts and the switch operating member 59 moves the chain 3
5, the switch operating member 59 contacts the operating member 67 of the stop switch 49 of the chain winding motor 29, and the stop switch 49 is operated.

Further, in the above-described overrun detecting device, the malfunction preventing member 7 arranged below the operating member 67.
3 prevents the switch actuating member 59 from moving toward the operating member 67. That is, when it is not necessary to operate the stop switch 49 in the vertical state of the chain 35 to which the switch operating member 59 is attached, the switch operating member 59 is also in the vertical state, so the operating member below the switch operating member 59. By blocking the movement toward the 67 side, the movement of the entire switch operating member 59 toward the operating member 67 side is blocked.

In the overrun detecting device constructed as described above, the operating member 67 of the stop switch 49 is operated by the switch actuating member 59 mounted on the chain 35, so that the operating member 67 is connected to the chain 35. The direct contact is eliminated, and damage to the operating member 67 of the stop switch 49 can be significantly reduced as compared with the conventional case.

Further, in the above-described overrun detecting device, since the malfunction preventing member 73 for preventing the lower part of the switch operating member 59 from moving toward the operating member 67 is arranged below the operating member 67, the switch operating member 59 is arranged. It is possible to prevent the switch actuating member 59 from coming into contact with the operating member 67 of the stop switch 49 when the switch is in the vertical state, and it is possible to reliably prevent malfunction of the stop switch 49.

In the embodiment described above, an example in which the overrun of the chain winding motor 29 is detected has been described. However, for example, by changing the mounting position of the switch actuating member 59 to the chain 35, the lift 1
5 can also be used for control.

[0026]

As described above, in the chain hoisting motor overrun detecting device in the multi-storey parking system according to the first aspect, the operating member of the stop switch is operated by the switch operating member attached to the chain. Therefore, the chain does not come into direct contact with the operating member, and the damage to the operating member of the stop switch can be significantly reduced compared to the conventional case.

In the overrun detection device for the chain hoisting motor in the multi-level parking apparatus according to the second aspect, since the malfunction preventing member for preventing the movement of the lower part of the switch operating member to the operation member side is arranged below the operation member, It is possible to prevent the switch operating member from coming into contact with the operating member of the stop switch when the switch operating member is in the vertical state, and it is possible to reliably prevent malfunction of the stop switch.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an overrun detection device of the present invention.

FIG. 2 is a perspective view showing a multilevel parking device in which the overrun detection device of FIG. 1 is arranged.

FIG. 3 is a front view showing the overrun detection device of FIG.

4 is an exploded perspective view showing a mounting structure of a switch operating member of the overrun detection device of FIG.

5 is a top view showing a mounting structure of a switch operating member of the overrun detection device of FIG.

FIG. 6 is a side view of FIG. 3;

FIG. 7 is a front view showing a state in which the overrun detection device of FIG. 3 operates.

[Explanation of symbols]

 15 Lifting / lowering body 25 Sprocket 29 Chain winding motor 35 Chain 49 Stop switch 55 Fixing part 57 Loose part 59 Switch operating member 67 Operating member

Claims (2)

[Claims] 1. A rear end of a chain for raising and lowering an elevating body suspended from a sprocket is fixed to a fixed portion to form a slack portion for hanging the wound chain in a U shape. A switch actuating member that tilts toward the outside following the tilt of the chain at the rear end is attached to the outside of the portion, and the switch actuating member is actuated on the outside of the switch actuating member when the switch actuating member is inclined toward the outside. An overrun detection device for a chain hoisting motor in a multilevel parking apparatus, wherein an operating member for a switch for stopping a chain hoisting motor that is operated in contact with the member is arranged. 2. The overrun detection device for a chain hoisting motor in a multilevel parking system according to claim 1, wherein a malfunction prevention member for preventing movement of a lower portion of the switch operating member toward the operation member side below the operation member. An overrun detection device for a chain hoisting motor in a multi-level parking device, characterized in that