JPH0625463U - Multi-level parking device - Google Patents

Abstract

(57) [Abstract] [Purpose] In a multi-level parking system in which a vehicle-mounted pallet is supported by a support post so that it can be lifted and lowered, the impact of the pallet is reduced even in the unlikely event of a drive chain being cut. The purpose of the present invention is to prevent the fall and to ensure the safety of the multilevel parking system by always operating the fall prevention mechanism without causing rust. A safety motor (13) is provided separately from a drive motor (5) for moving the pallet (1) up and down, and a worm gear (12) is interposed between the safety motor (13) and the chain sprocket (10). , A safety chain (15) having one end fixed to the pallet (1) is wound around the chain sprocket (10), and the safety chain (15) is connected to the chain sprocket (10) according to the lifting and lowering of the pallet (1). The safety motor (13) is controlled so as to move between the pallets (1) without slack.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a three-dimensional parking apparatus that can park a vehicle three-dimensionally by raising and lowering a pallet as a vehicle board, and more particularly to a three-dimensional parking apparatus including a pallet fall prevention mechanism.

[0002]

[Prior art]

 With the spread of automobiles, securing a parking lot becomes a problem. Especially in cities and their 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 space has been developed.

An example of such a three-dimensional parking device is disclosed in Japanese Patent Laid-Open No. 64-2952. That is, in this parking device, the underframes are arranged in parallel, and a horizontal frame is horizontally fixed between the underframes to form a lower parking portion between the underframes, and the approximately central portion of each of the underframes. A stanchion is erected on the pallet, and the upper and lower pallets are slidably attached to the stanchions on both sides above the underframe so that the pallets are slidably mounted on the stanchion. Has a drive shaft horizontally rotatably mounted, and drive sprockets are fixedly mounted on both ends of the drive shaft. The drive shaft can be normally and reversely rotated by a forward and reverse rotation motor provided at a rear corner of the pallet. The guide sprocket is rotatably supported on the rear outer surface of the underframe, the outer surface of the pallet at a position slightly behind the stanchions, and the top of each stanchion. Secure one end to the outer surface and the other end to the rear outer surface of the pallet. Chain, the turning suspended to the guide sprocket and drive kinematic sprocket has a configuration in which a vertically movable pallet in normal and reverse rotation of said forward and reverse motor.

As a pallet fall prevention mechanism of the conventional multi-level parking apparatus, a stopper such as a beam is provided at a constant pitch of about 20 cm on the main pillar of the parking apparatus, and the like when cutting the drive chain. In addition, a stopper is used mainly to engage a pawl electrically or mechanically protruding from the pallet to prevent the pallet from falling.

[0005]

[Problems to be solved by the device]

 However, with the above-mentioned conventional fall prevention mechanism, the stopper provided at the pitch of 20 cm receives the pallet at the time of dropping within the pitch, so that the fall prevention operation width becomes large and the pallet and Since the impact on the load is large and dangerous, and the fall prevention mechanism itself does not normally operate at all, there is concern about the operational state in an emergency due to dust or rust.

The present invention has dealt with the above situation and has found a new structure of a fall prevention mechanism that cooperates with the normal lifting and lowering of pallets. The purpose of this is to reduce the impact and prevent the pallet from falling, and to ensure the safety of the multi-level parking system by always operating the mechanism without causing rusting.

[0007]

[Means for Solving the Problems]

 Therefore, the feature of the multi-dimensional parking device of the present invention which meets the above-mentioned purpose is that the pallet for mounting the vehicle is supported by the upright columns via the drive mechanism so that it can be lifted and lowered. A safety motor with a worm gear interposed is installed on the column, and a safety chain with one end fastened to the pallet is wrapped around the chain sprocket, and the safety chain moves the chain sprocket according to the pallet lifting by the drive mechanism. The safety motor is installed so that it can move freely between the pallet and the pallet. 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 broken, for example.

[0008]

[Action]

 In the multi-level parking apparatus of the present invention having the above structure, the fall prevention mechanism composed of the safety motor in which the worm gear is interposed between the chain sprocket and the safety chain stretched over the chain sprocket and the pallet, Prevent the pallet from dropping in case of accident. That is, in normal times, the worm gear to which the power is transmitted from the safety motor transmits this force to the chain sprockets via the worm wheel and rotates it, but in an emergency such as when the drive chain breaks, Is the power from the opposite direction, that is, even if the safety chain tries to rotate the motor through the chain sprocket, the worm gear does not transmit this power, so the chain sprocket is braked to secure the safety chain. As a result, the pallet is prevented from falling. In this case, since the safety chain works together without sagging between the pallet and the sprocket while maintaining a constant tension as the pallet is moved up and down, even if the drive chain is disconnected as described above, the drop applied to the pallet. The impact of the car 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]

【Example】

 Hereinafter, embodiments of the present invention will be described 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 includes a pallet (1) as an on-board plate. The pallet (1) has a structure in which the pallet (1) is movably supported up and down via a drive mechanism (2). 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), it is provided so as to be able to move up and down through the drive shaft (6), drive sprockets (7) and (7), drive chains (8) and (8), and the like.

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 fall prevention mechanism (9) has the worm wheel (11) and the worm gear (12) interposed between the chain sprocket (10) and the propeller (3) separately from the drive motor (5). Of the safety chain (15), one end of which is connected to the pallet (1) and the other end of which is connected to the skeleton body (14), and the middle part is wound around the chain sprocket (10). ) And. As the worm gear (12) and the worm wheel (11), a self-locking type, etc., in which anti-reverse rotation is taken into consideration, are particularly 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 constant tension and move without sagging. In other words, this safety motor (13) is provided so as to rotate similarly by the ON / OFF / REVERSE switch of the drive motor (5). In addition, the stop control at the upper and lower limits and the lower limit of the safety motor (13) and the drive motor (5) are provided with individual limit switches (16) and (17) to eliminate the deviation between the two due to electrical slip. is doing. Further, the safety motor (13) is provided with a shock relay (18), and in the case where the drive chain (8) of the drive mechanism (2) is broken, the shock relay (18) is installed in the vicinity of the safety chain (15). This shock relay (18) stops the safety motor (13) and the drive motor (5) by detecting a current overload on the safety chain (15) by a load detection means (not shown).

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). The fall prevention mechanism (9) composed of a safety chain (15) stretched over the pallet (1) and the pallet (1) prevents the pallet (1) from dropping accidentally. That is, normally, the worm gear (12) to which power is transmitted from the safety motor (13) transmits this force to the chain sprocket (10) via the worm wheel (10) to rotate the chain sprocket (10), but the drive chain. In case of emergency such as disconnection of (8), even if the power from the opposite direction, that is, the safety chain (15) tries to rotate the safety motor (13) via the chain sprocket (10), the worm gear Since (12) 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, since the safety chain (15) is not sagging between the pallet (1) and the sprocket (10), the safety chain (15) cooperates with the pallet (1) ascending and descending while maintaining a constant tension. However, even if the drive chain (8) is cut as described above, the impact of the drop applied to the pallet (1) is extremely small, and the safety chain (15), which is always in motion, is caused by rust and dust. It has no obstacles and can operate reliably at all times to ensure the safety of the multilevel parking system.

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]

[Effect of device]

 As described above, the multi-level parking apparatus of the present invention is provided with a safety motor separately from the drive motor for raising and lowering the pallet, and the worm gear is interposed between the safety motor and the chain sprocket and one end of the pallet is attached to the pallet. The safety chain that has been fastened is wound around the chain sprocket described above, 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. Since the pallet and sprocket work together with the lifting and lowering of the pallet with a certain tension, even if the drive chain is accidentally cut, the impact of the drop applied to the pallet is much smaller than before. In addition, the safety chain, which always operates as described above, can be always In which a marked effect of ensuring the safety of the multilevel parking apparatus is operated in.

[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) Worm wheel (12) Worm gear (13) Safety motor (14) Body (15) Safety chain (16) (17) Limit switch (18) Shock relay

Claims (1)

[Scope of utility model registration request] 1. In a multi-story parking apparatus in which a pallet for mounting an automobile is movably supported by an upright pillar through a drive mechanism, a safety motor having a worm gear interposed between the sprocket and a chain sprocket is provided on the pillar. A safety chain having one end fixed to a pallet is wound around the chain sprocket, and the safety motor is provided so that the safety chain moves between the chain sprocket and the pallet without slack in response to the pallet lifting by the drive mechanism. A multi-level parking device that is characterized by that.