JP2018105084A - Safety device for multistory parking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety device for a multistory parking device capable of sensing a failure of an optical receiver of a photoelectric sensor installed in a multistory parking device when occurred.SOLUTION: A safety device for a multistory parking device is provided with a control device 25 for controlling the operation of a multistory parking device 10, a phototransmitter 22a and an optical receiver 23a installed opposite to each other inside the multistory parking device 10, and a power supply 24 for supplying power to the phototransmitter 22a and the optical receiver 23a. The optical receiver 23a transmits a signal to the control device 25 when an optical axis between the phototransmitter 22a and the optical receiver 23a is blocked. The power only to the phototransmitter 22a is shut off temporarily when the multistory parking device 10 starts operating.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a safety device for a multi-story parking apparatus that three-dimensionally stores a vehicle.

  3D parking devices are widely used in densely populated houses as parking facilities that can efficiently park a large number of vehicles on land with little space, and have various structures that take into account the size and economics of the land used. Is provided. In general, a multi-story parking device uses a ground or underground space to store vehicles in multiple layers in the vertical direction, or stores them in a plane so that the distance between them is minimized. Like to do.

  The three-dimensional parking apparatus is provided with one or a plurality of entry / exit floors for entering and exiting the vehicle, and a driving operation panel is provided outside the entry / exit floor. And when moving the vehicle into the multilevel parking device, after moving the vehicle to the loading / unloading floor and stopping at a predetermined position, the driver leaves the multilevel parking device, and then the driver or the operation When the clerk operates the driving operation panel, the vehicle is transferred to a predetermined storage position and stored. Conversely, when leaving the vehicle, the vehicle is transferred from the storage position to the entry / exit floor by operating the driving operation panel, and then the driver gets on the vehicle and exits from the multilevel parking device.

  The multi-story parking system is configured to minimize the space between the vehicle and the structure so that more vehicles can be stored in a limited space. If transported in a state, the vehicle and the structure will be damaged. Therefore, it is necessary to accurately stop the vehicle at a regular position on the entry / exit floor. For this reason, photoelectric sensors are installed on the entry and exit floors in the width direction of the vehicle and in the front-rear direction so that it can be confirmed that the vehicle has stopped at the proper position and the vehicle can be guided. (For example, refer to Patent Document 1).

  Photoelectric sensors are roughly classified into a transmission type and a reflection type. In a three-dimensional parking apparatus, a transmission type photoelectric sensor having a long detection distance is generally employed. A transmissive photoelectric sensor consists of a projector that projects a light beam and a light receiver that receives this light beam. The projector and the light receiver are placed facing each other, and the detection object is blocked by blocking the optical axis between them. Is detected. When the position of the vehicle is detected by the photoelectric sensor as described above, if the vehicle position is not appropriate, the optical axis between the projector and the light receiver is blocked, and this is detected by the light receiver and transmits a signal. This prevents the multi-story parking apparatus from operating.

JP 2006-169722 A

  In such a configuration, if the optical axis cannot be detected due to the optical axis misalignment between the projector and the receiver due to some cause or failure of the projector, a signal is emitted from the receiver. It operates on the safe side so that the multi-story parking device does not operate. However, if the failure of the photoreceiver is such that the light is always detected, the photoreceiver does not transmit a signal even though the detected object blocks the optical axis, and the parking system can operate. Become.

  This invention is made | formed in view of such a situation, Comprising: When the light receiver of the photoelectric sensor installed in the three-dimensional parking apparatus fails, the safety device of the three-dimensional parking apparatus which can detect this is provided. With the goal.

  In order to solve the above-mentioned problem, the invention described in claim 1 includes a control device that controls the operation of the multi-story parking device, a projector and a light receiver that are installed facing each other in the multi-story parking device, and the projector. A power source for supplying power to the light receiver, and the light receiver transmits a signal to a control device when an optical axis between the light projector and the light receiver is interrupted. It is characterized in that power to only the projector is temporarily cut off at the start of operation of the apparatus.

  The invention according to claim 2 is a control device that controls the operation of the multi-story parking device, a projector and a light receiver that are installed opposite to each other in the multi-story parking device, and power to the projector and the light receiver. A power supply for supplying the power to the control device when the optical axis between the light projector and the light receiver is interrupted, and manually supplying power to only the light projector. It is characterized by being temporarily interrupted by

  According to the present invention, it is possible to confirm whether or not the light receiver is normal before starting the operation of the multi-story parking apparatus, and when it is abnormal, the operation is stopped, so that safety is improved.

Side view showing the outline of the elevator parking system Rear view showing the outline of an elevator parking system Floor plan of the entry / exit floor Electrical circuit diagram of photoelectric sensor

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG.1 and FIG.2 is the side view and rear view which show the outline of a multi-story parking apparatus, In this description, an elevator type multi-story parking apparatus is shown and demonstrated as a specific example. Inside the multi-story parking apparatus 10, a hoistway 11 that penetrates the center up and down is formed, and an elevating lift 12 is provided so that the hoistway 11 can be raised and lowered. The lifting / lowering lift 12 connects wire ropes 14 to the four corners of the carrier 13 on which the vehicle 19 is mounted, and winds or feeds the wire ropes 14 by a hoisting device (not shown) provided on the upper part of the multilevel parking device 10. Thus, the carrier 13 is driven up and down.

  On both sides of the hoistway 11, a plurality of parking chambers 17 are formed in upper and lower multi-stages, and each parking chamber 17 is provided with a pallet 18 for mounting a vehicle 19. In this multi-story parking apparatus 10, the first floor portion above the ground is used as an entry / exit floor 15 of the vehicle 19, and the entry / exit direction 16 of the vehicle 19 is set in a direction orthogonal to the longitudinal direction of the transporter 13. An empty pallet 18 in any parking room 17 in which the vehicle 19 is not stored is slid (transverse) onto the transporter 13 and then descends to the entrance / exit floor 15 together with the transporter 13 and stops. Below the loading / unloading floor 15, a pallet turning device 20 that turns the pallet 18 to change the direction is provided. The pallet 18 that has arrived at the loading / unloading floor 15 is turned 90 ° by the pallet turning device 20. Then, the vehicle changes its direction so that its longitudinal direction becomes the entrance / exit direction 16 of the vehicle 19 and waits. When the vehicle 19 enters the vehicle 19, the vehicle 19 travels on the pallet 18, and then the vehicle 19 and the pallet 18 are turned 90 ° by the pallet turning device 20 and placed on the transporter 13. The rear transporter 13 takes the vehicle 19 and the pallet 18 to the position of the original parking chamber 17, that is, the pallet 18 is taken out and transports the pallet 18 to the empty parking chamber 17. Store.

  FIG. 3 is a plan view of the loading / unloading floor 15. An operation panel 21 is provided on the outer wall of the loading / unloading floor 15. The driving operation panel 21 is provided with buttons for selecting entry / exit, a touch panel, and the like, and the three-dimensional parking apparatus 10 is operated by an operator or driver operating the driving operation panel 21. A photoelectric sensor comprising a combination of a projector and a light receiver for detecting the position of the vehicle 19 is installed inside the entrance / exit floor 15. Near the entrance / exit floor surface of the entrance / exit floor 15, projectors 22a and 22b are provided on both sides of the pallet 18, and the light receivers 23a and 23b are positioned slightly higher than the floor surface on the wall opposite to the entrance / exit. It has. The light projector 22a and the light receiver 23a face each other, and an optical axis a is formed between them. The optical axis a is substantially along the one outer side of the pallet 18 and is formed obliquely so as to pass from the light projector 22a near the floor surface to the side of the door of the vehicle 19 and reach the light receiver 23a. Along the other outer side of the pallet 18, the optical axis b is similarly formed between the light projector 22b and the light receiver 23b. When the optical axis a or the optical axis b is blocked by the vehicle body or door of the vehicle 19, the light receiver 23a or the light receiver 23b detects this and transmits a signal.

  On one side of the entrance / exit floor 15 is provided with projectors 22c and 22d, and on the opposite side is provided with light receivers 23c and 23d. The light projector 22c and the light receiver 23c face each other, and an optical axis c is formed between them. The optical axis c is substantially along the outer side of the entrance side of the pallet 18 and is formed near the height of the bumper of the vehicle 19. Similarly, an optical axis d is formed between the light projector 22d and the light receiver 23d. The optical axis d is substantially along the outer side opposite to the entrance side of the pallet 18 and is similar to the optical axis c. It is formed near the height of 19 bumpers. When the optical axis c or the optical axis d is blocked by the vehicle body 19, the light receiver 23 c or the light receiver 23 d detects this and transmits a signal.

  Signals transmitted from the driving operation panel 21 and the light receivers 23a, 23b, 23c, and 23d are input to a control device that controls the operation of each part of the multi-story parking device 10. The control device controls the start or stop of the operation, the operation of warehousing, the operation of unloading, and the like by a signal from the operation operation panel 21. In addition, when a signal from any one of the light receivers 23a, 23b, 23c, and 23d is input, the control device performs control so that the operation is not started even if a signal is input from the driving operation panel 21. .

  FIG. 4 is an electric circuit diagram of the photoelectric sensor, that is, the projector 22a and the light receiver 23a. In the figure, the light projector 22a and the light receiver 23a are connected to a DC power source 24 and supplied with power. The light receiver 23a and the control device 25 are connected, and the light receiver 23a transmits a signal to the control device 25 when the light emitted from the light projector 22a is not detected. The electric circuit of the DC power supply 24 and the projector 22a is provided with a relay 26 for switching the power to the projector 22a between a cut-off state and a power-on state, and this switching operation is performed by the control device 25.

  The operation | movement at the time of warehousing with the multi-story parking apparatus 10 is demonstrated by the above structure. First, when a warehousing signal is input to the control device 25 by operating the driving operation panel 21, the control device 25 operates the relay 26 so as to temporarily cut off the power to the projector 22a. Thereby, the light emission of the projector 22a is temporarily stopped. If the light receiver 23a is normal at this time, a signal is transmitted from the light receiver 23a to the control device 25 to confirm that it is normal, and then the control device 25 operates the relay 26 to the connected state. Later, the multi-story parking apparatus 10 is controlled so as to perform the warehousing operation. Conversely, when there is an abnormality in the light receiver 23a and light is constantly detected, the light receiver 23a does not transmit a signal to the control device 25 when the power to the projector 22a is temporarily cut off. Then, the control device 25 determines this, and the subsequent operation of the multi-story parking device 10 is stopped. In this case, it is preferable that the control device 25 displays the number of the light receiver 23a having an abnormality on the operation panel 21 because an abnormal part can be quickly identified.

  In the above description, the combination of the specific projector 22a and the light receiver 23a has been described. However, the electrical circuit and operation described above are transmissive photoelectric sensors installed in the multi-story parking device 10, It can be applied to any photoelectric sensor. In the above description, the operation at the time of warehousing has been described. For example, if a button or the like is provided on the operation panel 21 and the relay 26 can be manually switched by operating the button, maintenance is performed. It can also be used for inspection of photoelectric sensors, etc.

DESCRIPTION OF SYMBOLS 10 Three-dimensional parking apparatus 11 Hoistway 12 Lifting lift 13 Carrying device 14 Wire rope 15 Entry / exit floor 16 Entrance / exit direction 17 Parking room 18 Pallet 19 Vehicle 20 Pallet turning device 21 Operation operation panel 22a, 22b, 22c, 22d Floodlight 23a, 23b, 23c, 23d Light receiver 24 DC power supply 25 Controller 26 Relay

Claims (2)

  A control device that controls the operation of the multi-story parking device, a projector and a light receiver that are installed opposite to each other in the multi-story parking device, and a power source that supplies power to the projector and the light receiver. When the optical axis between the light projector and the light receiver is interrupted, the device transmits a signal to the control device, and temporarily supplies power to the light projector at the start of operation of the multilevel parking device. A safety device for a multi-story parking apparatus, characterized in that the system is blocked.   A control device that controls the operation of the multi-story parking device, a projector and a light receiver that are installed opposite to each other in the multi-story parking device, and a power source that supplies power to the projector and the light receiver. When the optical axis between the light projector and the light receiver is interrupted, the device transmits a signal to the control device, and the power to only the light projector is temporarily interrupted manually. A safety device for a multi-story parking apparatus, characterized in that.

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