JPH0882107A - Fall down preventive structure in parking tower garage - Google Patents

Abstract

PURPOSE: To simplify a locking device by connecting a pole which interlocks the lowering motion of a pushbutton switch box and a locking device with a connection rod and opening a stopper pallet formed on a stopper from a position directly under a lift pallet CONSTITUTION: A stopper 10, which is designed to prevent a fall down, is turnably mounted to a post 3 or more particularly directly under an upper limit position of a lift pallet 1. The other end of a connection rod whose one end is fixed with a pole 4 is fixed on a stopper 10 at the position having a spacing with a rotary pivot 9. When the stopper 10 is turned, there is formed a stopper blade 8 which projects like an arm and penetrates directly under the lift pallet 1. A stopper pin 11 is projectingly installed to the post 3 where the stopper pin 11 is designed to prevent the stopper blade 8 from turning.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing a vertical pallet from falling in a three-dimensional parking apparatus that can be parked in two levels, upper and lower.

[0002]

2. Description of the Related Art In a three-dimensional parking apparatus, an elevating pallet is suspended by wire ropes, chains, etc., and is held by a brake device for a motor shaft that winds these.

Should the lifting pallet fall, the vehicle below may be crushed or the vehicle on the lifting pallet may be damaged, and if there is a person below it, it is extremely dangerous.

Therefore, the normal safety factor for cutting wire ropes and the percentage of the brake holding torque are set to be sufficiently large so as not to drop. However, if the frequency of use of wire ropes increases, metal fatigue occurs and it becomes easy to cut. Although they are inspected and replaced on a regular basis, a fall prevention device is provided in case of a delay in replacement.

As a conventional fall prevention device, there is an electric system in which an actuator such as a magnet or a motor is used to simultaneously release the lock of a lock pin projecting downward of the pallet when a push button is operated (see FIG. 5, FIG. 6).

As another method, there is a manual method in which a lock is released by a manual lever and then a push button is operated to raise and lower the pallet.

[0007]

In the conventional fall prevention structure, the electrical system first requires an actuator control device for locking the lock pin, which increases the cost. In addition, the failure rate becomes high. Furthermore, the magnet is noisy.

The manual system is composed of a lock release operation by a manual lever and a push button operation for raising and lowering the pallet thereafter.
It is necessary to perform a single operation, and in order to open the manual lever, it is necessary to go to the support pillar. It is difficult to access because it has to go in and is dangerous.

[0009]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a push button box for driving an elevating pallet, which is projected in front of a parking device and at a height which does not hinder loading and unloading of a vehicle, is moved up and down (see the same applicant). No. K94-0804 filed Aug. 30, 1994), the locking device is opened.

Therefore, as the push button box descends, the pole holding it also descends, pushing down the connecting rod connected to this pole, transmitting this movement to the lock mechanism, and interlocking with the vertical movement of the pole to lock it. The mechanism was opened and closed.

Further, when locking the one side, the slide rod attached to the lower surface of the pallet base is pushed, the slide rod is projected to the other side, and the other side is also locked.

[0012]

[Operation] In the system of the first embodiment, the push button box 2 of the operation switch of the lift pallet 1 of the multi-story parking apparatus is fixed to the other end of the pole 4 whose one end is supported by the column 3 of the parking apparatus, and When the switch is turned on, when the push button box is pulled down with a string 5 or the like, when the push button box is pulled down and the pole 4 is rotated downward about the mounting portion with the column, The connecting rod 7 attached in the middle of the pole is also displaced downwards in conjunction with the lowering of the pole, and the other end rotates the fall prevention stopper blade 8 to release the locked state.

In the system of the second embodiment, a slide rod is attached to the lower surface of the pallet, and this slide rod is constantly pushed against the lock and the other side against the compression spring by the lock and protrudes to serve as the lock on the other side. When the lock is released, the compression spring returns to the lock side to release the lock on the other side when the lock is released. When the lifting and lowering operation of the pallet is completed and the push button box is released, the pole automatically returns to the original upper position retracted position, and at the same time, the stopper blade 8 and the slide rod 13 also return to the fall prevention position.

[0014]

[Embodiment 1] In the embodiment shown in FIGS. 1 and 2, a cantilever type lifting pallet 1 is vertically moved by rotation of a roller along a column 3 on one side.

The operation switch of this elevating pallet is a push button box 2 which is arranged by a pole 4 rather than a column 3 in front of the apparatus and at a height which does not hinder loading and unloading of a vehicle for easy operation. The push button box 2 is provided with a lowering string 5 so that the push button box can be pulled down during operation.

Therefore, the pole 4 is supported so that it can rotate on an axis (X axis) orthogonal to the column 3 (bearing portion 6).

Further, a stopper 10 for preventing falling is rotatably attached to the column 3 just below the upper limit position of the lifting pallet 1. The stopper 10 is fixed to the support column 3 by a rotation pivot 9, and the rotation pivot 9
Can be rotated about the axis (Y axis).

The other end of the connecting rod 7, one end of which is fixed to the pawl 4, is fixed on the stopper 10 at a position spaced from the rotary pivot 9. When the stopper 10 is rotated, an arm-like protruding stopper blade 8 is formed which is inserted just below the pallet 1, and a stopper pin 11 for stopping the rotation of the stopper blade 8 is formed on the column near the stopper 10. It is projected.

The fixing position of the connecting rod 7 to the pole and the fixing position to the stopper are determined in consideration of the stroke for opening and closing the stopper.

Further, it is advantageous to attach a limit switch 12 to the stopper 10 to check when the stopper blade is opened, and to drive the motor later.

[0021]

Second Embodiment FIG. 3 and FIG. 4 show a second embodiment.

The second embodiment relates to a method of locking on both sides when columns are provided on both sides. It includes all the structures of the first embodiment and further incorporates a slide rod mechanism. The lift pallet 14 is mounted so as to be lifted between the columns 15 and 16 on both sides. This lifting pallet 14
A slide rod 13 having a compression spring is slidably mounted on the lower surface of the stopper 10 so that the stopper blade 8 of the stopper 10 of the first embodiment pushes against the compression spring force in the direction of the column 15 on the other side when locked. (Mounting tools 20 and 21) and the support 15 on the other side are provided with a rod stopper 17 that projects directly below the slide rod 13. The slide rod 13 is a stopper blade 8
By being pushed by, it protrudes from the width of the pallet 14 toward the other-side strut 15 and is locked (FIG. 3).

When the stopper 10 rotates and the lock is released, the slide rod 13 is slid by the compression spring 18 toward the column 16 where the stopper 10 is located, and the slide stopper 19 of the slide rod is moved to the slide rod 1.
It is stopped at a position within the width of the pallet projecting laterally from the pallet 14 by hitting the fixture of FIG. 3 (FIG. 4).

In the second embodiment, the fall prevention device of the first embodiment is incorporated so as to be interlocked with the stopper. Instead of the stopper, an electric fall prevention device in which a lock pin projects by a conventional actuator or the like. Therefore, the spring rod may be pushed.

[0025]

According to the method of the present invention, since the lock device for preventing the fall is opened at the same time as the switch operation, that is, the push button box is pulled down, it is not necessary to separately open the lock device as in the conventional case, and it is simple. is there. Further, the need for an actuator control device for that purpose is eliminated, and the cost is reduced accordingly.

[Brief description of drawings]

FIG. 1 is a diagram of a multilevel parking apparatus according to the present invention.

[Figure 2] Enlarged view of the fall prevention structure

FIG. 3 is a diagram showing a locked state of the second embodiment.

FIG. 4 is a diagram showing a state when the lock of the second embodiment is released.

FIG. 5 is a front view of a multi-level parking device including a conventional fall prevention device.

6 is a side view of FIG.

[Explanation of symbols]

 1 Lifting Pallet 2 Push Button Box 3 Strut 4 Pole 5 Lower String 6 Bearing Part 7 Connecting Rod 8 Stopper Blade 9 Rotating Pivot 10 Stopper 11 Stopper Pin 12 Limit Switch 13 Slide Rod 14 Lifting Pallet 15, 16 Strut 17 Rod Stopper 18 Compression Spring 19 Slide stopper

Claims (4)

[Claims] 1. A push button box 2 of an operation switch of a lift pallet 1 is attached to a column 3 in a multi-story parking system in which a pole 4 is placed in front of the device by a pole 4 rather than a column 3 and at a high position that does not obstruct vehicle loading and unloading. Stopper 10 to prevent the falling of the lifting pallet that rotates around the rotating pivot 9.
The connecting rod 7 is connected to the pawl 4 at a position spaced apart from the rotary pivot 9 on the stopper. When the pawl 4 is lowered, the connecting rod 7 is also lowered and the stopper 10 is rotated. A fall prevention structure in a multi-level parking device in which an arm-shaped stopper blade 8 formed on this stopper is released from a lock position directly below the elevating pallet 1 when it is opened. 2. The fall prevention structure for a multi-level parking apparatus according to claim 1, wherein a limit switch 12 is attached to the stopper, and the motor of the lifting pallet is driven when it is confirmed that the lock is unlocked. 3. A slide rod 13 having a compression spring so that the stopper blade 8 of the stopper 10 can be pushed when locked, is slidably attached to the lower surface of the lifting pallet 14, and protrudes to the other side when the stopper 10 is locked. The tip of the slide rod 13 locks the other side together with the protruding rod stopper 17 provided on the support on the other side. When the stopper 10 is unlocked, the slide rod 13 causes the width of the lifting pallet to move by the compression spring. The fall prevention structure for a multi-level parking device according to claim 1, wherein the fall prevention structure is configured to stop at an inner position. 4. In a known fall prevention device in which a lock pin protrudes from the lower surface of a lift pallet, a slide rod 13 having a compression spring for pushing when the lock pin is locked is slidably attached to the lower surface of the lift pallet 14. When the stopper 10 is locked, the tip of the slide rod 13 that protrudes to the other side locks the other side together with the protruding rod stopper 17 provided on the column on the other side, thus unlocking the lock pin. Occasionally, a compression spring causes the slide rod 13 to stop at a position within the width of the elevating pallet.