JPH0754486Y2 - Multi-level parking device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional parking apparatus capable of parking an automobile three-dimensionally by raising and lowering a pallet as an in-vehicle plate, and more particularly to a three-dimensional parking apparatus having a pallet fall prevention mechanism. It is about.

[0002]

2. Description of the Related Art With the spread of automobiles, securing a parking lot has become a problem. Especially in cities and suburbs, it is necessary to make effective use of garage land because of land shortages due to soaring land prices. An elevating multi-story parking system that can store two or more cars in a storage space has been developed.

[0003] Such three-dimensional parking system, for example, the example in actual HirakiAkira 64-2952 JP is disclosed.
That is, in this parking device, the underframes are arranged side by side in parallel, and a horizontal frame is laterally fixed between the underframes to form a lower parking portion between the underframes, and the approximately central portion of each of the underframes. Stands upright,
Above the underframe, a pallet serving as an upper parking portion is provided movably up and down by slidably attaching the central portions on both sides to the pillar, and a drive shaft is horizontally rotatably mounted on the rear lower surface of the pallet. Then, drive sprockets are fixedly mounted on both ends of the drive shaft, and the drive shaft can be rotated normally and reversely by a forward and reverse rotation motor provided at a rear corner portion of the pallet, and a rear outer surface of the underframe, A guide sprocket is rotatably rotatably supported on the outer surface of the pallet at a position slightly rearward of the stanchions and on the top of each of the stanchions, and one end of the guide sprocket is supported on the outer surface of the pallet at a front position of the stanchion to the rear outside of the pallet. A chain having the other end fixed to the side surface is suspended around the guide sprocket and the drive sprocket, and the pallet can be raised and lowered by the forward and reverse rotations of the forward and reverse rotation motor.

As a pallet fall prevention mechanism of the conventional multi-level parking apparatus, a stopper such as a beam is provided on the main pillar of the parking apparatus at a constant pitch of about 20 cm to cut the drive chain, etc. It is mainly used to prevent the pallet from falling by engaging a claw electrically or mechanically protruding from the pallet with the stopper.

[0005]

However, in the above-mentioned conventional fall prevention mechanism, the stoppers provided at the pitch of 20 cm receive the pallet at the time of dropping within the pitch, and therefore, the fall prevention mechanism is provided. The operation width is large and the impact on the pallet and its loads is large and dangerous, and the fall prevention mechanism itself does not normally operate at all, so it is activated in an emergency due to dust or rust. There is concern about the condition.

The present invention has dealt with the above situation and has found a fall prevention mechanism having a novel structure that works together with the normal lifting and lowering of a pallet, so that even in the case of an accident such as cutting of a drive chain. The object of the present invention is to reduce the impact to prevent the pallet from dropping, and to ensure the safety of the multi-level parking device by always operating the mechanism without rusting it.

[0007]

However, the feature of the three-dimensional parking apparatus of the present invention which meets the above-mentioned object is that the three-dimensional parking apparatus is constructed such that a pallet on which an automobile is placed is supported by a vertically-arranged column so as to be lifted and lowered. Provided on the column side of the device
A safety motor with a worm gear interposed between the chain sprocket and the chain sprocket, and a safety chain with one end fastened to the pallet is wound around the chain sprocket, and the safety chain moves up and down the pallet by the drive mechanism. Accordingly, the safety motor is provided so as to move between the chain sprocket and the pallet without slack. It is preferable that the safety motor is controlled so as to detect and stop the overload at that time when the chain of the drive mechanism is cut or the like.

[0008]

In the multi-level parking apparatus of the present invention having the above structure, the fall prevention is constituted by the safety motor having the worm gear interposed between the chain sprocket and the safety chain stretched between the chain sprocket and the pallet. A mechanism prevents the pallet from dropping in case of accident. That is, in normal times, the worm gear to which power is transmitted from the safety motor transmits this force to the chain sprocket via the worm wheel and rotates it, but in an emergency such as disconnection of the drive chain, the reverse of the above. Power from the direction, that is, even if the safety chain tries to rotate the motor via the chain sprocket, the worm gear does not transmit this power, so the chain sprocket is braked to secure the safety chain, and as a result, Prevents pallets from falling. In this case, since the safety chain cooperates without sagging between the pallet and the sprocket while maintaining a constant tension as the pallet moves up and down, even if the drive chain is cut as described above, the drop applied to the pallet. The impact of is extremely small, and the safety chain that is always in motion does not have any obstacles due to rusting or dust adhesion, and can always operate reliably to ensure the safety of the multilevel parking system.

[0009]

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

FIG. 1 is a schematic view showing a three-dimensional parking apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a fall prevention mechanism of the embodiment. This parking apparatus has a pallet (1) as an on-board plate.
Via a drive mechanism (2) is supported by a support column (3) standing on one side of the pallet (1) so as to be able to move up and down. The pallet (1) is supported in a cantilevered manner on the column (3) through L-shaped guide frames (4) and (4), and a forward / reverse rotation drive motor provided on the column (3). By (5), the drive shaft (6), the drive sprockets (7), (7) and the drive chain (8),
(8) and the like so that it can be moved up and down.

On the other hand, the fall prevention mechanism (9), which is essential to the present invention, has a structure as shown in FIG. That is, the drop preventing mechanism (9) is not specifically shown, on the mechanism
As is apparent , the worm wheel (11) and the worm gear (12) are interposed between the chain sprocket (10) provided on the support (3) side, and the support (() is provided separately from the drive motor (5). 3) provided on the safety motor (13), the pallet (1) at one end and the weight (1) at the other end.
4), each of which is connected to each other and has an intermediate portion formed by a safety chain (15) wound around the chain sprocket (10). As the worm gear (12) and the worm wheel (11), a self-locking type, etc., in which anti-reverse rotation is particularly taken into consideration, are suitable.

The safety motor (13) moves the safety chain (15) between the chain sprocket (10) and the pallet (1) in accordance with the lifting and lowering of the pallet (1) by the drive mechanism (2). It is controlled to maintain a certain tension and move without sagging. In other words, this safety motor (13) turns on the drive motor (5).
・ OFF ・ It is provided to rotate in the same way with the REVERSE switch. Further, the stop control of the safety motor (13) and the drive motor (5) at the upper and lower limits and the lower limit is provided with individual limit switches (16) and (17) to eliminate the deviation between them due to electrical slip. ing.
Further, the safety motor (13) has a shock relay (1
8) is provided, and if the drive chain (8) of the drive mechanism (2) breaks, the safety chain (15)
The overload detection means (not shown) provided in the vicinity detects the overload on the safety chain (15) at that time,
This shock relay (18) stops the safety motor (13) and the drive motor (5).

In the multi-level parking apparatus of the embodiment of the present invention having the above structure, the safety motor (13) having the worm gear (12) interposed between the chain sprocket (10) and the chain sprocket (10). A fall prevention mechanism (9) composed of a safety chain (15) stretched over the pallet (1) prevents the pallet (1) from falling in an unexpected case. That is, normally
The worm gear (12), which receives power from the safety motor (13), transmits this force to the chain sprocket (10) through the worm wheel ( 11 ) to rotate it, but the drive chain (8) disconnects it. In the event of an emergency such as the above, power from the opposite direction, that is, the safety chain (15) passes through the chain sprocket (10) and the safety motor (1).
3) When trying to rotate the worm gear (1
Since 2) does not transmit this power, the chain sprocket (10) is braked to secure the safety chain (15), and as a result, the pallet (1) is prevented from falling.

In this case, the safety chain (15) is
Since the pallet (1) and the sprocket (10) cooperate with each other while maintaining a constant tension as the pallet (1) moves up and down without sagging, even if the drive chain (8) is cut as described above, The impact of the drop on (1) is extremely small, and the safety chain (15), which is constantly moving, does not have any obstacles due to rusting or dust adhesion, and always operates reliably to ensure the safety of the multilevel parking system. You can.

Although the embodiment of the present invention has been described above, it is needless to say that the detailed structure of the multi-level parking device can be appropriately changed without departing from the scope of the present invention.

[0016]

As described above, in the multi-level parking apparatus of the present invention, a safety motor is provided in addition to the drive motor for raising and lowering the pallet, and the worm gear is interposed between the safety motor and the chain sprocket. A safety chain that is secured to a pallet is wrapped around the chain sprocket, and the safety motor is controlled so that the safety chain moves between the chain sprocket and the pallet without sagging as the pallet moves up and down. Is working together with the lifting and lowering of the pallet with a constant tension between the pallet and the sprocket,
Even if the drive chain is accidentally cut, the impact of dropping on the pallet is much smaller than before, and the safety chain that always operates as described above is always reliable without any obstacles due to rust or dust adhesion. It has a remarkable effect that it operates to secure the safety of the multi-level parking device.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing a fall prevention mechanism of the embodiment.

[Explanation of symbols]

(1) Pallet (2) Drive mechanism (3) Strut (4) Guide frame (5) Drive motor (6) Drive shaft (7) Drive sprocket (8) Drive chain (9) Drop prevention mechanism (10) Chain sprocket ( 11) the worm wheel (12) the worm gear (13) safety motor (14) weight body (15) the safety chain (16) (17) limit switch (18) shock relay

Claims (1)

[Scope of utility model registration request] 1. A safety motor in which a worm gear is interposed between a chain sprocket and a chain sprocket provided on a pillar side of a multi-dimensional parking apparatus in which a pallet for mounting a vehicle is supported by a vertically arranged pillar through a drive mechanism. The safety chain having one end fixed to the pallet is wound around the chain sprocket, and the safety chain moves without slack between the chain sprocket and the pallet according to the elevation of the pallet by the drive mechanism. A multi-level parking device provided with the safety motor.