JPH0645011Y2 - Safety device for mechanical parking facility - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a safety device for a mechanical parking facility.

(Prior Art) In a mechanical parking facility of a horizontal circulation system arranged in a basement of a building, for example, a plurality of transverse parking paths for loading and unloading pallets for transporting automobiles are arranged above and below, A hoistway for raising and lowering a pallet by a lift or the like is connected to the road from a side of the transverse parking road to a loading / unloading opening on the ground.

Vehicles are loaded from the loading / unloading port through the hoistway to any of the transverse parking paths, or from any position of each transverse parking path to the loading / unloading port via the hoistway.

If an automobile is loaded with the rear door being a half-door, etc., the rear door may open greatly upward due to vibration during movement. Therefore, in a horizontal parking lane that does not allow for height, the rear door at the entrance is blocked by the ceiling of the basement or the pallet of the horizontal parking lane on the upper floors, which may cause the vehicle to overturn or severely damage the surrounding structures. There is a situation where it is hurt.

So, for example, so as to cross the upper part of each traverse parking road entrance, install wires etc. between both side walls of the basement,
There is also known a safety device that stops the automobile together with the pallet when the rear door comes into contact with the wire.

(Problems to be solved by the invention) However, since the conventional mechanical safety device as described above has a complicated structure and is large-scaled, the facility cost is high and the detection position is inaccurate due to the bending of the wire. Therefore, the stop operation can be delayed. In addition, since the height of the wire is about 1.6 m above the pallet, it not only hinders maintenance and inspection, but also often causes the operator to feel a danger. Further, there is a problem that it takes time to return each constituent member of the safety device to the original position after the stop operation.

In view of such conventional circumstances, the present invention provides a safety device for a mechanical parking facility, which has a simple structure, is easy to maintain and manage, improves the detection function, and reduces the facility cost. is there.

(Means for Solving the Problems) A safety device for a mechanical parking facility according to the present invention comprises a parking passage for accommodating a pallet for transporting an automobile so that the pallet can be carried in and out, and a passage for moving the pallet forward and backward with respect to the parking passage. It is provided between the photocell located at a position where the open state of the rear door of the automobile can be detected, and the stop signal detected by the light flux cutoff of this phototube is linked to the emergency stop relay and It is composed of a keep relay for storing a signal input and maintaining the state thereof, and a return button for canceling the keeping operation of the keep relay.

(Operation) With the operation of the above means, when the rear door of the automobile enters the parking passage from the passage while the rear door is open, the rear door interrupts the luminous flux of the photoelectric tube and a stop signal is generated. This stop signal is input to and stored in the keep relay, and by operating the emergency stop relay, all drive means of the mechanical parking facility are stopped.

The stopped state is maintained until the parking facility manager operates the return button.

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

[Embodiment 1] A mechanical parking facility 1A shown in FIG. 1 is of a horizontal circulation type that moves intermittently, and is provided with an upper parking device 2 and a lower parking device 3 and is constructed in an underground space of a building 4. It is installed in place 5. Each of the parking devices 2 and 3 includes a left vertical transfer path 7 and a right vertical transfer path 8 for intermittently cyclically moving a pallet 6 with wheels for transferring an automobile V in a horizontal plane, and a plurality of horizontal rows. The transfer paths 9, 9 (only one row is shown in each layer in FIG. 1) are connected in a box shape, and the horizontal transfer paths 9, 9 ...
And the both ends of each of the vertical transfer paths 7, 7, 8 and 8, a passage for accommodating the vehicle V in a loadable / unloadable manner, that is, the upper-layer transverse parking path 1
0,10 and lower transverse parking roads 11,11 are constructed.

Movable traverse rails 12 provided with vertical feed driving means (not shown) are provided on the left vertical transfer paths 7, 7 and the right vertical transfer paths 8, 8, respectively, while the horizontal transfer paths 9, 9 ... Are respectively provided with traverse rails 13 and 13 and crank arm type traverse means 14 and 14 equipped with a motor, etc., and the movable traverse rail 12, traverse rail 13 and traverse means 14 are columns, beams and girders. It is supported by a frame 15 formed by combining

A side hoistway 17 for raising and lowering the pallet 6 is provided between the right end side of one of the rows of the upper-layer transverse parking roads 10, 10 and the lower-layer transverse parking roads 11, 11 to the loading / unloading entrance 16 on the ground. A side lift 18 that is constructed and supports the pallet 6 so that it can be loaded and unloaded laterally is provided in the side hoistway 17 with lifting means and lateral feeding means (both not shown).

A safety device 19 is provided between the lateral traverse parking lane 10 and the lateral traverse parking lane 11 and the side hoistway 17. The safety device 19 detects that the rear door D is opened at a position before the vehicle V travels on each of the transverse parking paths 10 and 11, and stops all driving means. As shown in FIGS. 1 and 2, the safety device 19 has a position (for example, from the height of the pallet 6) at which the open state of the rear door D of the automobile V can be detected at the entrances of the transverse parking paths 10 and 11. Photocells 20A, 20B placed 1.6m above) and this photocell 20
The stop relay detected by the light beam interruption of A and 20B is linked to the emergency stop relay 21, and the keep relay 24 equipped with the set coil 22 and the reset coil 23 for storing the input of the stop signal and maintaining the state. And keep relay 24
It is composed of a return button 25 provided at an appropriate position inside the empty space 5 in order to cancel the maintenance operation. 26
Is an emergency stop button, and 27 is another contact group (for example, a thermal relay, a limit switch, etc.) connected to the emergency stop relay 21.

When the side hoistway 17 is constructed in the middle of the upper-layer transverse parking road 10 and the lower-layer transverse parking road 11, the photocells 20A and 20B are arranged on both sides of the side hoistway 17, respectively. .

Further, the safety device 19 of this example can be applied to a mechanical parking facility having three to five layers.

Next, the operation of this embodiment will be described.

When the vehicle V is loaded, for example, the pallet 6 located at the right end of the upper-level transverse parking road 10 is fed onto the side lift 18 by the transverse feed means 14, and then the side lift 18 is driven to move upward. Raised to the floor level of exit port 16.

Then, when the vehicle V gets on the pallet 6, the side lift 18 is driven to descend, the pallet 6 descends, and the other pallet 6 entering the right end portion of the upper-level transverse parking road 10 together with the vehicle V. After being connected, the transverse feed means 14 feeds the vehicle transversely to send it to an appropriate position in the middle portion of the upper transverse parking road 10 for parking.

If the pallet 6 is moved laterally from the side hoistway 17 together with the vehicle V while forgetting to close the rear door D of the vehicle V or opened with the door half left, the rear door D is moved to the photoelectric tube 20A. Shut off the light flux of. With this operation, photocell 2
The stop signal generated at 0A is input to the keep relay 24 and the emergency stop relay 21 is activated. Therefore, all driving means of the mechanical parking facility 1A are stopped, and this state is maintained until the person who manages the parking facility operates the return button 25.

[Embodiment 2] A mechanical parking facility 1B shown in FIG. 3 is of a multi-layered box-type circulation system that moves intermittently, and constitutes an upper-level transverse parking path 28 and a lower-level parking device that constitute an upper-level parking device. The lower-level traverse parking lane 29 is connected to the side hoistways 30 and 31 in a box shape, and is provided with a passage for moving the pallet 33 forward and backward with respect to the upper-level traverse parking lane 28, that is, an intermediate hoistway 32. It is located in vacant space 5 of 4. In each of the transverse parking paths 28, 29, a pallet 33 with wheels for transferring an automobile V is mounted on a transverse rail 34, and in the side hoistways 30, 31 and the intermediate hoistway 32, side portions are respectively provided. Lifts 35 and 36 and an intermediate lift 37 are provided. The middle lift 37 is the entrance / exit 16B
The vehicle V is lifted up and down together with the pallet 33 between the upper-level transverse parking road 28 and the intermediate hoistway 32 in the upper-level horizontal parking route 28.
Photoelectric tubes 20A, 20A of the safety device 19 are provided on both sides of the photocell.

Vehicle V is in the upper-level transverse parking path due to the lowering operation of intermediate lift 37.
When entering the 28, if the pallet 33 moves laterally for each vehicle V with the rear door D of the vehicle V left unclosed,
As in the case of the first embodiment, the safety device 19 operates to stop the mechanical parking facility 1B.

[Embodiment 3] The mechanical parking equipment 1C shown in FIG. 4 is of a multi-layered box type circulation system that moves intermittently, and has a middle hoistway 32 of Embodiment 2.
Instead of this, a passage for moving the pallet 33 forward and backward with respect to the upper-level transverse parking road 28, that is, a loading / unloading port 16C for directly loading and unloading the vehicle V is provided.
The construction and operation are the same as in the case of the second embodiment except that the photoelectric tubes 20A, 20A of the safety device 19 are provided on both sides of 6C.

[Embodiment 4] A mechanical parking facility 1D shown in Fig. 5 is of a circulation type that continuously moves, and an upper-layer circulation parking path 38 that constitutes an upper-layer parking device and a lower-layer circulation parking that constitutes a lower-layer parking device. The path 39 is arranged in a passage 5 for advancing and retracting the pallet 41 with respect to each circulation parking path 38, 39, that is, in the void 5 of the building 4 having the side hoistway 40. In each of these circulation parking paths 38, 39,
A pallet 41 for transporting an automobile V is provided on a drive endless chain 42 by arms 43, 43, ... Arranged at equal intervals so that the pallet 41 is always kept horizontal and circulated. Side hoistway
40 is provided with a side lift 44 for raising and lowering the vehicle V together with the pallet 41 between the loading / unloading entrance 16D and each circulation parking passage 38, 39. Photocells 20A and 20B of the safety device 19 are provided between the photocells 40 and 40, respectively.

The vehicle V is driven by the lowering operation of the side lift 44 to the upper circulation parking road 38.
When the pallet 41 is laterally moved together with the vehicle V when the vehicle V has forgotten to close the rear door D, the safety device 19 operates and the mechanical parking facility is activated as in the case of the first embodiment.
Stop 1D.

Further, the same operation is performed in the lower circulation parking road 39.

[Embodiment 5] The mechanical parking facility 1E shown in FIG. 6 is of a circulation type that is capable of continuous movement. Instead of the side hoistway 40 of Embodiment 4, an upper circulation parking passage 38 is provided. On the other hand, a passage for advancing and retracting the pallet 41, that is, a loading / unloading port 16E for directly loading and unloading the automobile V is provided, and photoelectric cells 20A, 20A of the safety device 19 are provided on both sides of the loading / unloading port 16E. Except for the above, the configuration and operation are similar to those of the third embodiment.

(Effects of the Invention) Since the present invention applies the photocell connected to the keep relay to the means for detecting the open state of the rear door of the automobile, the operating position where the open state of the rear door is detected. Is always constant, and the rollover etc. of the automobile are surely prevented.
Since the returning operation is maintained until the administrator operates the returning button, it is safe and reliable. The structure is simple and the equipment cost is reduced by about 30% compared to the mechanical type. In addition, since there is no structure that operates mechanically, maintenance and inspection is extremely easy. Furthermore, since there is no obstacle at the entrance of the parking road to pass traffic for workers, it has a great feeling of liberation. There are advantages.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a central longitudinal sectional view of a mechanical parking facility according to Embodiment 1, FIG. 2 is a circuit diagram of a safety device, and FIGS. It is a center longitudinal cross-sectional view of the mechanical parking equipment of Example 2 thru | or Example 5. 1A, 1B, 1C, 1D, 1E …… Mechanical parking facility 6,33,41 …… Pallet 10,28 …… Higher-level transverse parking road 11,29 …… Lower-level transverse parking road 16C, 16E …… Entry / Exit 17 , 40 …… Side hoistway 19 …… Safety device 20A, 20B …… Phototube 21 …… Emergency stop relay 24 …… Keep relay 25 …… Return button 32 …… Intermediate hoistway 38 …… Upper circulation parking road 39 ...... Lower-level circulating parking lane V …… Car D …… Rear door

Claims (3)

[Scope of utility model registration request] 1. A rear door of an automobile, which is provided between a parking passage for accommodating a pallet for transporting an automobile so that the pallet can be loaded and unloaded, and a passage for moving the pallet forward and backward with respect to the parking passage. A photo relay arranged at a position where the condition can be detected and a stop signal detected by the light beam cutoff of the photo conductor are linked to an emergency stop relay, and a keep relay for storing the input of the stop signal and maintaining the condition. And a return button for canceling the maintenance operation of the keep relay, a safety device for a mechanical parking facility. 2. The safety device for a mechanical parking facility according to claim 1, wherein the parking road is a transverse parking road for intermittently moving the pallet. 3. The safety device for a mechanical parking facility according to claim 1, wherein the parking road is a circulating parking road for continuously moving pallets.