Parking device

Abstract

To provide a parking device with enhanced safety achieved by feature of quickly stopping itself.SOLUTION: A parking device includes: motors for actuating objects, respectively; first electromagnetic contactors for controlling supply of power to the motor; a power supply line connected to the first electromagnetic contactors; a second electromagnetic contactor for controlling supply of power from a power electric source to the power supply line; a power supply cutoff switch that is connected to the power supply line between the first electromagnetic contactors and the second electromagnetic contactor and cuts off supply of power of the power supply line; a control signal line connected to the power supply cutoff switch; a control circuit board that is connected to the control signal line and transmits a control signal to the power supply cutoff switch; and a cutoff circuit board that is connected to the control signal line between the power supply cutoff switch and the control circuit board and cuts off the control signal on the control signal line.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] An embodiment of the present invention relates to a parking device for parking a vehicle such as an automobile. [Background technology]

[0002] A multi-level parking system is known as a vehicle parking system, in which vehicles are placed on pallets and parked in a stacked manner in a multi-level manner. In the multi-level parking system, the pallets can be moved vertically or horizontally to allow the vehicles placed on the pallets to be loaded and unloaded from the entrance / exit gate.

[0003] Such a multi-level parking device has an operation panel for controlling the movement of the pallets. A user of the multi-level parking device can operate the operation panel to call up the pallets or open and close the entrance and exit doors to allow a vehicle to enter or leave the parking device. For safety reasons, the operation panel is generally provided with an emergency stop button so that the user can stop the parking device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-159008 A Summary of the Invention [Problem to be solved by the invention]

[0005] When the emergency stop button on the operation panel is pressed, the control panel of the parking device determines whether the emergency stop button has been pressed, and stops the parking device if it determines that the emergency stop button has been pressed. Therefore, the parking device is not stopped immediately after the emergency stop button is pressed, and there is a time required for the control panel to determine whether the emergency stop button has been pressed. In other words, a time lag occurs between the emergency stop button being pressed and the parking device being stopped. The emergency stop button is pressed in an emergency, and when the emergency stop button is pressed, it is desirable to stop the parking device promptly, which is also important from the viewpoint of safety.

[0006] In view of the above problems, one embodiment of the present invention has an object to provide a parking device that can quickly stop the parking device and improve safety. [Means for solving the problem]

[0007] A parking device according to one embodiment of the present invention includes a motor for operating an object, a first electromagnetic contactor for controlling the supply of power to the motor, a power supply line connected to the first electromagnetic contactor, a second electromagnetic contactor for controlling the supply of power from a power source to the power supply line, a power supply cut-off switch connected to the power supply line between the first electromagnetic contactor and the second electromagnetic contactor and cutting off the supply of power on the power supply line, a control signal line connected to the power supply cut-off switch, a control circuit board connected to the control signal line and transmitting a control signal to the power supply cut-off switch, and a cut-off circuit board connected to the control signal line between the power supply cut-off switch and the control circuit board and cutting off the control signal on the control signal line.

[0008] At least one of the first electromagnetic contactor and the second electromagnetic contactor may be provided with a thermal relay.

[0009] Instead of the second electromagnetic contactor, an electromagnetic switch may be included.

[0010] In addition, a parking device according to one embodiment of the present invention includes a motor for operating an object, a first electromagnetic contactor for controlling the supply of power to the motor, a power supply line connected to the first electromagnetic contactor, an inverter for controlling the supply of power from a power source to the power supply line, a power supply cut-off switch connected to the power supply line between the first electromagnetic contactor and the inverter for cutting off the supply of power on the power supply line, a control signal line connected to the power supply cut-off switch, a control circuit board connected to the control signal line and transmitting a control signal to the power supply cut-off switch, and a cut-off circuit board connected to the control signal line between the power supply cut-off switch and the control circuit board for cutting off a control signal on the control signal line.

[0011] The first electromagnetic contactor may be provided with a thermal relay.

[0012] When the power supply cut-off switch does not receive the control signal, the power supply cut-off switch may cut off the supply of power to the power supply line.

[0013] The interruption circuit board may include a first contact of an emergency stop button, and when the emergency stop button is pressed, the first contact opens to interrupt the control signal on the control signal line.

[0014] The number of the first contacts may be at least two or more.

[0015] The cutoff circuit board may further include a second contact of the operational power switch, and when the operational power switch is turned off, the second contact opens to cut off the control signal on the control signal line.

[0016] The first contact and the second contact may be connected in series.

[0017] The control circuit board may stop sending the control signal on the control signal line when the emergency stop button is pressed.

[0018] The control circuit board may stop transmitting the control signal that controls the first electromagnetic contactor when the emergency stop button is pressed.

[0019] The control circuit board may stop transmitting the control signal that controls the second electromagnetic contactor when the emergency stop button is pressed.

[0020] The control circuit board may stop transmitting the control signal that controls the inverter when the emergency stop button is pressed.

[0021] The power supply cutoff switch may be an electromagnetic switch.

[0022] The object may be a pallet on which a vehicle is placed.

[0023] The target object may be a gate provided at an entrance / exit. Effect of the Invention

[0024] According to one embodiment of the present invention, when the emergency stop button is pressed or the power is turned off, the parking device can be stopped quickly without waiting for the time required for judgment. Therefore, the safety of the parking device can be improved. In addition, the power supply is cut off when an abnormal state occurs, so the safety of the parking lot can be further improved. [Brief description of the drawings]

[0025] [Figure 1] 1 is a schematic diagram showing the configuration of a parking device according to one embodiment of the present invention; [Diagram 2] 1 is a schematic diagram showing the configuration of an operation panel of a parking device according to one embodiment of the present invention. FIG. [Diagram 3] 1 is a block diagram showing the configuration of a parking device according to one embodiment of the present invention; [Figure 4] 2 is a block diagram showing the configuration of an interruption circuit board of a parking device according to one embodiment of the present invention. FIG. [Diagram 5] 1 is a block diagram showing the configuration of a parking device according to one embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The embodiment described below is an example of the present invention, and the present invention is not limited to these embodiments.

[0027] In the drawings referred to in the embodiments, identical parts or parts having similar functions are given the same or similar symbols (symbols consisting of a number followed by A, B, etc.). In addition, the dimensional ratios of the drawings may differ from the actual ratios for the convenience of explanation, and some components may be omitted from the drawings. Note that ordinal numbers such as "first," "second," and "third" in this specification are used only to simplify the explanation and should not be interpreted in a limiting manner.

[0028] First Embodiment A parking device 100 according to one embodiment of the present invention will be described with reference to Figs. 1 to 4.

[0029] [1. Configuration of parking device 100] Fig. 1 is a schematic diagram showing the configuration of a parking device 100 according to one embodiment of the present invention. Specifically, Fig. 1 is a schematic diagram showing the parking device 100 as seen from the side (when the side with the entrance / exit 109 is the front).

[0030] In the parking device 100, a structure is formed by support posts 102, and a pallet 104 on which a vehicle 101 is placed is disposed in the structure. The pallet 104 can be raised and lowered along the support posts 102 by a transport device 106. The pallets 104 are provided at predetermined positions with intervals so that when a plurality of vehicles 101 are stacked vertically in the structure, the vehicles do not interfere with each other. As a result, the structure formed by the support posts 102 forms parking areas P1, P2, P3, and P4 stacked in multiple tiers vertically. However, the number of parking areas is not limited to four, and may be n (n is a natural number). In other words, the structure may have n parking areas P1 to Pn formed therein.

[0031] Although not shown, the parking areas P1, P2, P3, and P4 may be formed not only in the vertical direction but also in a horizontal direction (the depth direction of the paper in FIG. 1) so that the pallet 104 can be moved not only in the vertical direction but also in the horizontal direction.

[0032] Parking device 100 is operated by an operation panel 105. Operation panel 105 is provided on the outside of parking device 100. For example, operation panel 105 is disposed on a support 102 near an entrance / exit 109 of parking device 100. A user operates operation panel 105 from outside parking device 100 to move a desired pallet 104 to entrance / exit 109 and to open / close gate 108.

[0033] A gate 108 provided at an entrance / exit 109 of the parking device 100 can be opened and closed by an operation panel 105. The gate 108 is closed except when it is opened to allow the vehicle 101 to enter or leave the parking device. Therefore, the gate 108 is also closed when the pallet 104 is moving. Since the gate 108 is closed, no person can enter the parking device 100 while the pallet 104 is moving. In FIG. 1, the control panel 110 is disposed on the side of the parking device 100, but the control panel 110 may be disposed in the entrance direction of the vehicle 101. A signal output from the operation panel 105 is transmitted to the control panel 110, and the control panel 110 outputs a control signal to the conveying device 106 that moves the pallet 104, or a driving device (including a motor) that opens and closes the gate 108.

[0034] In the parking device 100, which forms a parking area stacked in multiple levels in the vertical direction and stores and parks the vehicle 101 in a three-dimensional manner, the pallets 104 are raised and lowered to move the target pallet 104 to the entrance / exit 109 to load and unload the vehicle 101. There are several methods for moving the target pallet 104 to the entrance / exit 109. For example, a method of sinking the lower pallet 104 into an underground pit to unload the vehicle 101 parked on the upper pallet 104, a method of sliding the lower or upper pallet 104 toward the vehicle body (in the depth direction of the paper in FIG. 1) to lower the upper pallet 104 into an area where the lower pallet 104 does not exist, or a combination of these methods are used. Any of these methods can be applied to the parking device 100 according to this embodiment.

[0035] [2. Configuration of operation panel 105] FIG. 2 is a schematic diagram showing the configuration of the operation panel 105 of the parking device 100 according to one embodiment of the present invention.

[0036] As shown in FIG. 2, the operation panel 105 includes an operation power switch 120, an operation unit 122, an information display unit 124, an information input unit 126, and an emergency stop button 128.

[0037] The operation power switch 120 is a switch for starting the operation panel 105 of the parking device 100. For example, the operation power switch 120 enables at least one of turning on the power of the operation panel 105, accepting the operation of the operation unit 122, and inputting information using the information input unit 126 by inserting an operation key and turning it from "off" to "on". The operation unit 122 has a light lamp and an operation button for each operation procedure. The information display unit 124 displays various information. The information display unit 124 includes, for example, a display device using a liquid crystal or an OLED. The information input unit 126 accepts information input from a user. The information input unit 126 includes, for example, a plurality of buttons. The user can operate the plurality of buttons of the information input unit 126 to input predetermined information. The emergency stop button 128 is a button that is operated in an emergency. When the emergency stop button 128 is operated, certain operations of the parking device 100 (for example, operation of the pallet 104 or gate 108) are stopped to ensure the safety of users.

[0038] A signal output by operation of the operation panel 105 is transmitted to the control panel 110. Specifically, an output signal by operation of the operation power switch 120, an input operation by the information input unit 126, and an operation of the emergency stop button is transmitted to the control panel 110.

[0039] [3. Control of parking device 100] Fig. 3 is a block diagram showing the configuration of the parking device 100 according to one embodiment of the present invention. Specifically, Fig. 3 is a block diagram for explaining the control of the parking device 100.

[0040] As shown in FIG. 3, the parking device 100 includes a first electromagnetic switch 130-1, a second electromagnetic switch 130-2, a power supply cutoff switch 132, an electromagnetic contactor 134, a motor 136, a control circuit board 140, a cutoff circuit board 142, a power supply line 150, a control signal line 152, and a power source 154. The control circuit board 140 is connected to each of the first electromagnetic switch 130-1, the second electromagnetic switch 130-2, and the electromagnetic contactor 134 via the control signal line 152. The power source 154 is connected to the power supply line 150, and power is supplied to the parking device 100 via the power supply line 150. In the following, when the first electromagnetic switch 130-1 and the second electromagnetic switch 130-2 are not particularly distinguished from each other, they will be described as the electromagnetic switch 130 for convenience.

[0041] Basic operations of the parking device 100 are performed based on control signals from the control panel 110. For this reason, the control panel 110 includes a control circuit board 140 that can generate and output control signals.

[0042] The control circuit board 140 includes, for example, an arithmetic processing unit or a control signal output unit. The arithmetic processing unit includes, for example, an arithmetic processing device such as a CPU (Central Processing Unit) and memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The arithmetic processing unit develops a program stored in the ROM by using the RAM and executes it by using the CPU. For example, the arithmetic processing unit receives a signal transmitted from the operation panel 105 and generates a control signal for controlling the movement of the pallet 104 and the opening and closing of the gate 108. Specifically, if the signal is for the movement of the pallet 104, the arithmetic processing unit generates a control signal for controlling the electromagnetic switch 130 or the electromagnetic contactor 134. The control signal output unit outputs the generated control signal. For example, if the control signal is for controlling the electromagnetic switch 130 or the electromagnetic contactor 134, the control signal output unit transmits the control signal to the electromagnetic switch 130 or the electromagnetic contactor 134 via the control signal line 152.

[0043] Each of the first electromagnetic switch 130-1 and the second electromagnetic switch 130-2 is connected to the power supply line 150 and controls the supply of power through the power supply line 150 based on a control signal from the control circuit board 140. Specifically, when each of the first electromagnetic switch 130-1 and the second electromagnetic switch 130-2 receives a control signal, each of the first electromagnetic switch 130-1 and the second electromagnetic switch 130-2 supplies power from the power source 154 to the power supply line 150. On the other hand, when each of the first electromagnetic switch 130-1 and the second electromagnetic switch 130-2 stops receiving a control signal, each of the first electromagnetic switch 130-1 and the second electromagnetic switch 130-2 stops the supply of power from the power source 154 to the power supply line 150.

[0044] The first electromagnetic switch 130-1 and the second electromagnetic switch 130-2 are connected to the power supply line 150 so that the rotation directions of the motor 136 are opposite to each other when power is supplied to the motor 136. For example, the first electromagnetic switch 130-1 controls the supply of power to the motor 136 rotating in the forward direction, and the second electromagnetic switch 130-2 controls the supply of power to the motor 136 rotating in the reverse direction.

[0045] The motor 136 is provided in the conveying device 106 together with parts such as a slide mechanism, rollers, roller chains, bearings, or multiple hydraulic driving parts, and the rotation of the motor 136 can move the pallet 104 in the vertical or horizontal direction. For this reason, a motor 136 is provided for each pallet 104. Note that it is also possible to move one pallet 104 by multiple motors 136. For example, a motor 136 that moves the pallet 104 in the vertical direction and a motor 136 that moves the pallet 104 in the horizontal direction can be provided separately.

[0046] The motor 136 may be a geared motor in which a three-phase motor and a reducer are integrated. The three-phase motor has a built-in electromagnetic brake. The electromagnetic brake includes a brake disc, a brake pad, a braking electromagnet, and a pressure spring attached to the rotating shaft of the motor 136. The brake pad is constantly pressed against the brake disc by the pressure spring. The braking electromagnet is provided near the brake pad. Power is supplied to the braking electromagnet via a brake release relay. The brake release relay supplies power to the braking electromagnet while receiving a control signal, and stops supplying power to the braking electromagnet when the control signal is no longer received. When power is supplied to the braking electromagnet, the braking electromagnet attracts the brake pad and separates it from the brake disc. The rotating shaft is released, so that the brake is released and the pallet 104 is operated.

[0047] The electromagnetic contactor 134 is connected to the power supply line 150 and the motor 136, and controls the supply of power to the motor 136 based on a control signal from the control circuit board 140. Specifically, when the electromagnetic contactor 134 receives the control signal, the electromagnetic contactor 134 supplies power to the motor 136. On the other hand, when the electromagnetic contactor 134 stops receiving the control signal, the electromagnetic contactor 134 stops supplying power to the motor 136.

[0048] The control circuit board 140 may first transmit a control signal to the electromagnetic contactor 134 and then transmit a control signal to the electromagnetic switch 130 .

[0049] When the emergency stop button 128 on the operation panel 105 is pressed, the control panel 110 receives a signal from the operation panel 105. The control circuit board 140 of the control panel 110 stops sending a control signal to the electromagnetic switch 130 or the electromagnetic contactor 134. This stops the supply of power to the power supply line 150 or the supply of power to the motor 136, and the parking device 100 stops.

[0050] However, depending on the distance from the operation panel 105 to the control panel 110, the calculation speed of the information processing unit of the control circuit board 140, etc., a time lag occurs between when the emergency stop button 128 is pressed and when the parking device 100 stops. This time lag may be short, but it cannot be ignored in terms of the safety of the parking device 100. Therefore, in order to minimize such a time lag, the parking device 100 according to this embodiment further includes a power supply cutoff switch 132 and a cutoff circuit board 142.

[0051] The power supply cutoff switch 132 is connected to the power supply line 150 between the electromagnetic switch 130 and the electromagnetic contactor 134. That is, the electromagnetic switch 130 and the electromagnetic contactor 134 are connected via the power supply cutoff switch 132. The power supply cutoff switch 132 is also connected to the control circuit board 140 via a control signal line 152. Therefore, the control circuit board 140 can transmit a control signal to the power supply cutoff switch 132 via the control signal line 152. Between the power supply cutoff switch 132 and the control circuit board 140, the cutoff circuit board 142 is connected to the control signal line 152. The cutoff circuit board 142 can cut off the control signal of the control signal line 152 connected to the power supply cutoff switch 132, as will be described in detail later. As the power supply cutoff switch 132, for example, an electromagnetic switch can be used.

[0052] The electromagnetic switch is configured such that an electromagnetic contactor is provided with a thermal relay that cuts off the electromagnetic contactor when the temperature rises due to a load such as an overcurrent. Therefore, although it has been described above that the supply of power from the power source 154 to the power supply line 150 is controlled by the electromagnetic switch 130, an electromagnetic contactor can also be used instead of the electromagnetic switch 130. Similarly, the supply of power from the power supply line 150 to the motor 136 can also be provided by an electromagnetic switch instead of the electromagnetic contactor 134.

[0053] [4. Configuration of interrupter circuit board 142] FIG. 4 is a block diagram showing the configuration of the interrupter circuit board 142 of the parking device 100 according to one embodiment of the present invention.

[0054] As shown in FIG. 4, the interruption circuit board 142 is connected to the power supply cutoff switch 132 and the control circuit board 140. That is, the power supply cutoff switch 132 and the control circuit board 140 are connected via the interruption circuit board 142. The power supply cutoff switch 132 controls the supply of power to the power supply line 150 based on a control signal from the control circuit board 140. Specifically, when the power supply cutoff switch 132 receives a control signal, the power supply cutoff switch 132 maintains the supply of power to the power supply line 150. On the other hand, when the power supply cutoff switch 132 stops receiving a control signal, the power supply cutoff switch 132 cuts off the supply of power to the power supply line 150. Therefore, even if each of the electromagnetic switch 130 and the electromagnetic contactor 134 receives a control signal, the power supply to the power supply line 150 is cut off by the power supply cutoff switch 132, and the parking device 100 can be stopped. Note that, for convenience, the following description will be given assuming that the control signal from the control circuit board 140 is a supply of current.

[0055] As shown in Fig. 4, the interrupter circuit board 142 includes a first contact 128a and a second contact 128b of the emergency stop button 128, and a contact 120a of the operation power switch 120. The first contact 128a, the second contact 128b, and the contact 120a are connected in series. All of the contacts are closed when the parking device 100 is being used by a user (when the operation power switch 120 is not turned off). Therefore, the current supplied from the control circuit board 140 is supplied to the power supply cutoff switch 132 via the interrupter circuit board 142.

[0056] When the emergency stop button 128 is pressed, the first contact 128a and the second contact 128b open, and the current from the control circuit board 140 to the power supply cutoff switch 132 is cut off. In other words, the cutoff circuit board 142 cuts off the control signal to the power supply cutoff switch 132 (stops sending the control signal). This activates the power supply cutoff switch 132, and cuts off the power supply of the power supply line 150. The number of contacts of the emergency stop button 128 included in the cutoff circuit board 142 may be one, but it is preferable that there are at least two or more. In the case of one contact, there is a possibility that the current cannot be cut off if some abnormality occurs in the contact. If there are two or more contacts, even if an abnormality occurs in one contact, the other contacts open, the power supply cutoff switch 132 is reliably activated, the power supply of the power supply line 150 is cut off, and the parking device 100 can be stopped.

[0057] Furthermore, when the power supply of the operation panel 105 is turned off by operating the operation power switch 120 (when the operation power switch 120 is off), the contact 120a opens, and the current from the control circuit board 140 to the power supply cutoff switch 132 is cut off. In other words, the cutoff circuit board 142 cuts off the control signal to the power supply cutoff switch 132 (stops sending the control signal). This causes the power supply cutoff switch 132 to operate, and the power supply of the power supply line 150 is cut off. Therefore, when the power supply of the operation panel 105 is turned off, the power supply of the power supply line 150 can be cut off using the power supply cutoff switch 132 to stop the parking device 100 from operating in the unlikely event that the parking device 100 does not operate.

[0058] Also, when an emergency stop button is pressed on the control circuit board 140 or when a specified abnormality is detected, the supply of current from the control circuit board 140 to the power supply cutoff switch 132 may be cut off (the transmission of the control signal may be stopped). In this case as well, the power supply cutoff switch 132 is activated and the power supply of the power supply line 150 is cut off. Therefore, when a specified abnormality is detected, the power supply of the power supply line 150 can be cut off using the power supply cutoff switch 132 to stop the parking device 100 from operating in the unlikely event that the parking device 100 is operated.

[0059] As described above, in the parking device 100, the power supply cutoff switch 132 connected to the power supply line 150 can directly cut off the power supply of the power supply line 150 based on the opening and closing of the contacts of the emergency stop button 128. Therefore, the power supply cutoff switch 132 cuts off the power supply more quickly than the power supply is stopped via the control circuit board 140 (the power supply is stopped by the electromagnetic switch 130 or the electromagnetic contactor 134 based on a control signal from the control circuit board 140). Therefore, when the emergency stop button 128 is pressed, the parking device 100 can be stopped quickly.

[0060] 4 shows a configuration in which interrupter circuit board 142 and control circuit board 140 are separate, interrupter circuit board 142 may be integrated with control circuit board 140. Also, interrupter circuit board 142 may be separated into a plurality of boards and connected in series with each other.

[0061] 4 shows a configuration in which the interruption circuit board 142 is provided with contacts for the emergency stop button 128 and the operation power switch 120 of the operation panel 105, but a configuration in which the contact for the operation power switch 120 is not provided is also possible. The interruption circuit board 142 may be provided with contacts of a configuration other than that of the operation panel 105. For example, the interruption circuit board 142 may be provided with contacts for an emergency stop button installed on the gate 108 or the like. In this case, it is possible to directly cut off the supply of power supplied to the motor that operates the gate 108.

[0062] In the parking device 100 according to this embodiment, the power supply cutoff switch 132 is provided on the power supply line 150, so that the power supply of the power supply line 150 can be directly cut off without the intervention of a control signal to the electromagnetic switch 130 or the electromagnetic contactor 134. Therefore, the parking device 100 can be stopped quickly. Also, by providing the power supply cutoff switch 132 to cut off the power supply in addition to stopping the power supply by the electromagnetic switch 130 or the electromagnetic contactor 134, the safety of the parking device 100 is improved.

[0063] <Second embodiment> 5, a description will be given of a parking apparatus 100A which is a modified example of the parking apparatus 100. When the configuration of the parking apparatus 100A is similar to that of the parking apparatus 100, the description may be omitted.

[0064] FIG. 5 is a block diagram showing the configuration of a parking device 100A according to one embodiment of the present invention.

[0065] As shown in FIG. 5, the parking device 100A includes an inverter 130A instead of the electromagnetic switch 130. The inverter 130A can generate any frequency and starts outputting from a low frequency, so the torque generated by the motor 136 is generally small. Therefore, the brake pads are pressed against the brake disc until the rated torque for lifting the pallet 104 is generated, and the brake pads can be released when the frequency output from the inverter 130A reaches a rotational torque equal to or greater than the load torque. In this way, the inverter 130A is connected to the power supply line 150 and can control the rotational speed of the motor 136. That is, the inverter 130A can supply power to the power supply line 150 and control the movement of the pallet 104 having the motor 136.

[0066] In this embodiment as well, the inverter 130A and the electromagnetic contactor 134 are connected via the power supply cutoff switch 132. Moreover, the control signal of the control signal line 152 from the control circuit board 140 to the power supply cutoff switch 132 is cut off by the cutoff circuit board 142. Therefore, for example, when the emergency stop button 128 is pressed, the current from the control circuit board 140 to the power supply cutoff switch 132 is cut off, and the power supply cutoff switch 132 is activated. That is, the power supply of the power supply line 150 is cut off by the power supply cutoff switch 132, and the parking device 100A is stopped.

[0067] In the parking device 100A according to this embodiment, the power supply cutoff switch 132 is provided on the power supply line 150, so that the power supply of the power supply line 150 can be directly cut off without the intervention of a control signal to the inverter 130A or the electromagnetic contactor 134. Therefore, the parking device 100 can be stopped quickly. In addition, the power supply cutoff switch 132 is provided to cut off the power supply in addition to stopping the power supply by the inverter 130A or the electromagnetic contactor 134, thereby improving the safety of the parking device 100.

[0068] Although one embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the above embodiment and can be modified as appropriate without departing from the spirit of the present invention. For example, a parking device according to the present embodiment can be used by a person skilled in the art to add, remove, or modify components as appropriate, and the device is included in the scope of the present invention as long as it includes the gist of the present invention. Furthermore, the above-mentioned embodiments can be combined as appropriate as long as there is no mutual contradiction, and technical matters common to each embodiment are included in each embodiment even if not explicitly stated.

[0069] Even if there are other effects and advantages different from those brought about by the aspects of each of the above-mentioned embodiments, those that are clear from the description in this specification or that can be easily predicted by a person skilled in the art are naturally understood to be brought about by the present invention. [Explanation of symbols]

[0070] 100, 100A: parking device, 101: vehicle, 102: support, 104: pallet, 105: operation panel, 106: transport device, 108: gate, 109: entrance / exit gate, 110: control panel, 120: operation power switch, 120a: contact, 122: operation unit, 124: information display unit, 126: information input unit, 128: emergency stop button, 128a: first contact, 128b: second contact, 130: electromagnetic contactor, 130-1: first electromagnetic contactor, 130-2: second electromagnetic contactor, 130A: inverter, 132: power supply cutoff switch, 134: electromagnetic contactor, 136: motor, 140: control circuit board, 142: cutoff circuit board, 150: power supply line, 152: control signal line, 154: power supply

Claims

1. a power supply cutoff switch that is connected to a power supply line that supplies power to a motor that operates an object and operates to be able to cut off the supply of power to the motor; a cut-off circuit connected to the power supply cut-off switch and cutting off a control signal that controls the power supply cut-off switch when the emergency stop button is pressed.

2. 2. The parking apparatus of claim 1, wherein the power supply cut-off switch cuts off the supply of power to the power supply line when the power supply cut-off switch does not receive the control signal.

3. the interruption circuit includes a first contact of an emergency stop button; 3. A parking device as described in claim 1 or 2, wherein when the emergency stop button is pressed, the first contact opens and the control signal is interrupted.

4. The parking device according to claim 3 , wherein the number of the first contacts is at least two or more.

5. the interruption circuit further includes a second contact of an operational power switch; 5. The parking device according to claim 3, wherein when the power supply of the operation power switch is turned off, the second contact opens and the control signal is interrupted.

6. The parking device according to claim 5 , wherein the first contact and the second contact are connected in series.

7. 7. The parking device according to claim 1, wherein the power supply cutoff switch is an electromagnetic switch.

8. 8. The parking device according to claim 1, further comprising two electromagnetic contactors for controlling the supply of power from a power source to the power supply line.

9. The parking device according to claim 8, wherein the two electromagnetic contactors are provided with thermal relays.

10. 9. The parking device according to claim 8, further comprising two electromagnetic switches instead of the two electromagnetic contactors.

11. The parking device according to claim 1 , wherein the object is a pallet on which a vehicle is placed.

12. The parking device according to claim 1 , wherein the object is a gate provided at an entrance / exit.

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