Automatic swing door opening and closing device and door unit equipped with the same

Abstract

To make it possible to return to a closed state even if opening / closing of a door is temporarily stopped.SOLUTION: A swing type-automatic door opening / closing device 100 includes: a first unit 10 having a first control part 11 which receives power supply from the outside through a first power supply line interface 15, drives a drive part 12 to operate a door opening / closing device 13, and swing a door 1; a second unit 20 having a second control part 21 which controls a switch 22 for cutting off the power supply through the first power supply line interface 15; and an opening / closing sensor 30 which detects the opening / closing of the door 1. The first control part 11 is configured, when the opening / closing of the door 1 is interrupted, to stop the opening / closing of the door 1, and the second control part 21 is configured, when the opening / closing sensor 30 detects that the door 1 has not been closed for at least a specified duration of time, to cause the first control part 11 to drive the drive part 12 to operate the door opening / closing device 13 for moving the door 1 to the closed position.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to an automatic swing door opening and closing device and a door unit equipped with the same. [Background technology]

[0002] Doors are classified into sliding and swinging (swivel) types. Generally, automatic doors are often of the sliding type, which has a simple structure. However, there is also a demand for automatic swinging doors. For example, entrance doors to buildings, such as front doors, often use swinging doors, which are easier to seal. For this reason, automatic opening and closing systems for these swinging doors have also been developed (for example, Patent Document 1).

[0003] Automatic doors are generally equipped with a function that automatically stops the opening and closing operation when an obstacle is detected, for safety reasons, etc. In such an automatic stopping function, once the door is stopped, it often remains stopped until the user gives another command.

[0004] On the other hand, entrance doors such as front doors are required to have the characteristics of fire doors, which are required to be kept closed except when necessary, such as when entering or leaving a room.

[0005] However, there was a problem in that the automatic door could not function as a fire door if it remained stopped due to its automatic stop function. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 4-155082 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made in view of the above background, and an object of the present invention is to provide a swing door automatic opening and closing device that can return to a closed state even if the opening and closing is temporarily stopped, and a door unit equipped with the same.

[0008] According to a first aspect of the present invention, there is provided an automatic swing door opening / closing device, comprising: a first unit having a door opener attached to a swing door that opens and closes by swinging around a swing axis; a first power line interface connected to an external power source; a drive unit that receives power supply from the outside via the first power line interface to drive the door opener; and a first control unit that receives a door open command, drives the drive unit to operate the door opener to swing and open the door; and A swing door automatic opening and closing device including a second unit having a switch for cutting off the power supply, a second control unit for controlling ON / OFF of the switch, and a battery unit for driving the second control unit, and an opening and closing sensor for detecting the opening and closing of the door, wherein the first control unit is configured to stop the opening and closing of the door when the opening and closing operation of the door is obstructed, and the second control unit is configured to operate the door opener to drive the drive unit and move the door to a closed position when the opening and closing sensor detects that the door has not been closed for a predetermined time or more. With the above configuration, an automatic stop function for automatically stopping the opening and closing operation when the opening and closing of the swing door is obstructed is realized, while automatically closing the door after a predetermined time has elapsed, thereby realizing automatic return of the door to the closed state.

[0009] According to the second aspect of the present invention, in the above aspect, when the second control unit detects by the opening / closing sensor that the door is not closed for a predetermined time or more, the second control unit turns off the switch to temporarily cut off the power supply to the first unit via the first power line interface, and then turns on the switch. When the power supply is resumed through the first power line interface, the first control unit detects the opening / closing position of the door, and when the door is not in the closed position, the first control unit drives the drive unit to operate the door opener to move the door to the closed position. With the above configuration, the closing of the door can be controlled by a simple control of turning on / off the first power line that receives the power supply, and the closing of the door can be realized with a simple configuration without providing a separate signal line. In particular, a function to avoid the door being in an open state can be easily added by utilizing the characteristic set to return to the door closed position, which is the initial position, when the first unit is energized.

[0010] Furthermore, according to the third aspect of the present invention, in the automatic swing door opening and closing device in any of the above aspects, the door open command is detection of movement caused by opening and closing the door. With the above configuration, a user can detect movement caused by manual opening and closing of the door by simply pushing the door slightly, and automatically open and close the door, realizing an easy-to-use automatic opening and closing without the need for a user to operate a switch for opening and closing the door.

[0011] Furthermore, according to a fourth aspect of the present invention, the automatic swing door opening and closing device in any of the above aspects further includes an angle sensor provided on the rotation shaft of the drive unit, and the first control unit is configured to drive the drive unit to open or close the door when the angle sensor detects an angle change caused by opening or closing the door as the door open command. With the above configuration, the opening or closing operation of the door can be determined by detecting the rotation position of the drive unit with the angle sensor, and control such as outputting a door open command using this as a trigger is possible.

[0012] Furthermore, according to the fifth aspect of the present invention, in any of the above aspects, the swing-type door automatic opening and closing device is configured so that the second control unit detects that the door thumb turn has been moved from the locked position to the unlocked position and issues the door open command to the first control unit.

[0013] Furthermore, according to a sixth aspect of the present invention, in any of the above aspects, the automatic swing door opening and closing device further includes a buzzer that detects when the door has not been closed for a certain period of time or more and emits a warning sound.

[0014] Furthermore, according to the seventh aspect of the present invention, in the automatic swing door opening and closing device in any of the above aspects, the second control unit is configured to operate a timer when it detects that the door is not closed by the opening and closing sensor, and to issue a door closing command to the first control unit to operate the drive unit to move the door to a closed position after a predetermined time has elapsed, and to stop the operation of the timer when it detects that the door is closed by the opening and closing sensor before the predetermined time has elapsed. With the above configuration, it is possible to prevent the door from being in an open state for more than the predetermined time.

[0015] According to an eighth aspect of the present invention, in the automatic swing door opening and closing device, in any of the above aspects, the first unit has a harness drawn from the first power supply line interface routed inside the door and connected to an external power supply via the door frame. With the above configuration, the harness of the external power supply required for automatically opening and closing the door can be prevented from being exposed to the outside from the door, and can be made inconspicuous, improving the appearance.

[0016] Furthermore, according to a ninth aspect of the present invention, there is provided a swing door automatic opening and closing device in any one of the above aspects, wherein the swing door is a fire door.

[0017] Furthermore, a door unit according to a tenth aspect of the present invention comprises a swing door that rotates around a pivot axis to open and close, a door frame to which the door is fixed so that it can rotate freely, and an automatic swing door opening and closing device according to any of the above aspects that is connected to the door and the door frame to automatically open and close the door. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a schematic diagram showing a state in which a swing-type door automatic opening and closing device according to a first embodiment of the present invention is applied to a door unit. [Diagram 2] FIG. 2 is a circuit diagram of a first unit and a second unit shown in FIG. [Diagram 3] FIG. 4 is a block diagram showing a configuration example of a second unit. [Figure 4] FIG. 4 is a perspective view showing how a harness is routed from a first unit to a door and a door frame. [Diagram 5] FIG. 11 is a circuit diagram of a first unit and a second unit of a device for automatically opening and closing a swing door according to a second embodiment of the present invention. [Figure 6] FIG. 11 is a perspective view showing a swing door automatic opening and closing device according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of the present invention will be described with reference to the drawings as necessary. However, the embodiment shown below is an example for embodying the technical idea of ​​the present invention, and the present invention is not limited to the following. In addition, this specification never specifies the members shown in the claims to the members of the embodiment. In particular, the dimensions, materials, shapes, and relative arrangements of the components described in the embodiment are not intended to limit the scope of the present invention to those, and are merely explanatory examples, unless otherwise specified. Note that the size and positional relationship of the components shown in each drawing may be exaggerated to clarify the explanation. Furthermore, in the following explanation, the same name and symbol indicate the same or similar components, and detailed explanations will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured as a form in which multiple elements are composed of the same member, and one member serves multiple elements, or conversely, the function of one member can be shared and realized by multiple members. In addition, the contents described in some examples and embodiments may be applicable to other examples, embodiments, etc. [Embodiment 1]

[0020] The swing-type door automatic opening and closing device can be applied to a door unit in which a swing-type door is provided in a door frame. A state in which the swing-type door automatic opening and closing device 100 according to the first embodiment of the present invention is applied to a door unit 1000 is shown in the schematic diagram of FIG. 1. FIG. 2 shows a circuit diagram of the first unit 10 and the second unit 20 shown in FIG. 1. The door unit 1000 shown in these figures includes a door 1 and a door frame 2. The door 1 is attached to the door frame 2 via a hinge 3 so as to be opened and closed by swinging around a pivot. A door opener 13 is provided on the upper part of the door 1. The door opener 13 is provided in the first unit 10. The first unit 10 has a box-shaped housing 14. The first unit 10 automatically operates the door opener 13 to automatically open and close the door 1 in a swing manner. The first unit 10 is also connected to the second unit 20. Meanwhile, the second unit 20 is connected to an opening and closing sensor 30 that detects the open state of the door 1. The second unit 20 detects that the door 1 is open through the open / close sensor 30, and instructs the first unit 10 to close the door 1. This will be described in detail below. (First Unit 10)

[0021] 2, the first unit 10 includes a first power line interface 15, a drive unit 12, and a first control unit 11. The first power line interface 15 is an interface for connecting to an external power source, for example, a power supply unit 40, to receive power supply. Here, the first power line interface 15 is composed of a connector connected to a power line 16.

[0022] The drive unit 12 receives power from the outside via a first power line interface 15, and drives the door opener 13. The drive unit 12 is composed of a motor.

[0023] Upon receiving a door open command, the first control unit 11 drives the drive unit 12 to operate the door opener 13 to rotate and open the door 1. The first control unit 11 is composed of a microcomputer, an ASIC, an FPGA, a CPU, and the like.

[0024] The door open command is, for example, a movement detection caused by opening and closing the door 1. With this configuration, the user can detect the movement of the door 1 caused by manual opening and closing by only slightly pushing the door 1, and automatically open and close the door 1. This realizes easy-to-use automatic opening and closing without the need for the user to operate a switch for opening and closing the door. For this reason, a door movement detection unit 17 is provided to detect the movement of the door 1. The door movement detection unit 17 can be configured, for example, by an angle sensor or a rotary encoder provided on the rotating shaft of the drive unit 12 or the rotating shaft of the door opener 13. The door movement detection unit 17 detects the rotation direction and angle change caused by the opening and closing of the door 1, and issues a door open command to the first control unit 11. In response to this, the first control unit 11 drives the drive unit 12 to drive the door opener 13 and open and close the door 1. For example, when the door movement detection unit 17 detects the operation of pushing the door 1 to open the door, it drives the drive unit 12 in a direction to move the door 1 to the open position. Conversely, when the door movement detection unit 17 detects the operation of pulling the door 1 to close the door, it drives the drive unit 12 in the direction to move the door 1 to the closed position. In this way, by detecting the rotation direction of the drive unit 12 with the door movement detection unit 17, it is possible to determine the opening and closing operation of the door 1, and this can be used as a trigger to enable control such as outputting a door open command.

[0025] The door open command may be configured to receive a command to open or close the door at a user's desired timing via a remote control, an open / close switch, or the like. In this case, individual buttons for instructing the door to be open or closed may be provided on a portable remote control or a stationary console. Alternatively, a toggle button may be used to instruct the door to be opened and closed alternately. Furthermore, the door may be configured to be automatically opened when the door is unlocked. For example, the door open command may be sent to the first control unit via wire or wirelessly upon detecting that the thumb turn has been rotated or moved to the unlocked position.

[0026] Also, a buzzer may be provided that detects that the door has not been closed for a certain period of time and issues a warning sound. This notifies the user by voice that the door is not closed, improving safety and reliability in terms of crime prevention, etc. Also, in addition to or in addition to the buzzer, a lamp may be turned on or a voice guidance function (such as announcing "the door is open") may be provided. (Second Unit 20)

[0027] On the other hand, the second unit 20 includes an output terminal 25, an input terminal 26, a switch 22, a second control unit 21, a battery unit 23, and a housing 24 that houses these. The housing 24 is a rectangular box and is arranged near the door 1. The housing 24 is preferably made of a lightweight material with excellent insulating properties, such as resin. The output terminal 25 is connected to the first power line interface 15, and the input terminal 26 is connected to a power supply unit 40. In this example, the power supply unit 40 is a voltage converter that converts a commercial power supply AC to a direct current, and is preferably an adapter that converts AC 100V to DC 12V. If the second unit 20 or the first unit 10 is configured to be directly driven by the commercial power supply AC, a power supply unit that performs such voltage conversion can be eliminated.

[0028] In addition, a switch 22 is provided between the output terminal 25 and the input terminal 26. The switch 22 cuts off the power supply to the first unit 10 via the first power line interface 15. The switch 22 can suitably be a relay or a semiconductor switch.

[0029] The second control unit 21 controls ON / OFF of the switch 22 in response to a signal from the open / close sensor 30. The second control unit 21 is also configured with a microcomputer, an ASIC, an FPGA, a CPU, or the like.

[0030] The battery unit 23 drives the second control unit 21. In this way, by driving the second unit 20 with the battery unit 23, the second unit 20 can be operated even if the commercial power supply AC is cut off. In this example, a voltage detection line 27 is provided to detect the voltage of the power supply line 16 in order to monitor the power supply from the commercial power supply AC. The second unit 20 monitors the voltage of the power supply line 16 via the voltage detection line 27, and controls the battery unit 23 to switch to drive when the voltage falls below a predetermined voltage.

[0031] The battery section 23 can use a primary battery or a rechargeable secondary battery. The battery section 23 can also include a voltage conversion circuit that boosts or lowers the voltage of the secondary battery to a predetermined voltage, or a voltage stabilization circuit. This can reduce the number of secondary batteries and ensure stable operation. Furthermore, a charging circuit that charges the secondary battery can be provided in the second unit 20 to charge the secondary battery during normal operation. This can eliminate the need to periodically replace the secondary battery or other components of the battery section 23. In this example, the power supply section 40 is interposed between the second unit 20 and the commercial power source AC to perform voltage conversion, but a voltage conversion circuit may be provided on the second unit side. In this case, the power supply section 40 can be eliminated. (Open / Close Sensor 30)

[0032] The opening / closing sensor 30 for detecting the opening / closing of the door 1 on the second control unit 21 side can be appropriately made of known components capable of detecting the opening / closing of the door 1, such as a magnetic sensor or a microswitch. In this example, as shown in Figs. 1 and 2, magnetic sensors are disposed on the door 1 and the door frame 2 as the opening / closing sensor 30, and the magnetic flux density is set to a maximum when the door 1 is in the closed position, and whether the door 1 is in the closed position or the open position is determined by the change in the magnetic flux density. In the example of Fig. 2, the opening / closing sensor 30 is disposed on the upper frame of the door frame 2. However, the position where the opening / closing sensor 30 is disposed is not limited to the upper frame, and it may be disposed on the vertical frame or the lower frame.

[0033] Moreover, since it is sufficient for the second unit 20 to determine whether the door 1 is closed or not, it is sufficient for the opening / closing sensor 30 to determine whether the door 1 is in the closed position or not. In other words, it is not necessary to grasp the opening angle of the door. However, it goes without saying that a sensor capable of detecting the opening angle of the door can be used as the opening / closing sensor 30. For example, an angle sensor or a rotary encoder provided on the pivot shaft of the door or the rotating shaft of the door opener 13 may be used as the opening / closing sensor 30. In particular, when an angle sensor or a rotary encoder is provided on the first unit 10 to determine whether the door 1 is in the closed position or not, this angle sensor or the like can be used in combination with the opening / closing sensor 30 on the second unit 20 side to determine whether the door 1 is open or closed.

[0034] The opening / closing sensor 30 notifies the second control unit 21 that the door 1 is not in the closed position. For this reason, the opening / closing sensor 30 is connected to the second unit 20 as shown in Fig. 2. The opening / closing sensor 30 and the second unit 20 may be connected wirelessly in addition to being connected by wire. For example, communication may be performed using a standardized wireless communication protocol such as WiFi, Bluetooth, or ZigBee (all of which are names of products or services).

[0035] In this example, the first control unit 11 is configured to stop the opening and closing of the door 1 when the opening and closing operation of the door 1 is hindered. Therefore, the door 1 is left in an unblocked state, in other words, in an open state, which is undesirable from the viewpoint of crime prevention when used as an entrance door, for example. In particular, when used as a fire door, it is not suitable because it is fundamental that the door is always closed. Therefore, instead of the first control unit 11, the second control unit 21 issues a command to close the door 1. Specifically, the second control unit 21 constantly monitors whether the door 1 is in an open state for a predetermined time or more by using the opening and closing sensor 30. Then, when the second control unit 21 detects that the door 1 is not in an open state for a predetermined time or more, it instructs the first control unit 11 to close the door 1. In response to this, the first control unit 11 drives the drive unit 12 to operate the door opener 13 so as to move the door 1 to the closed position. With this configuration, an automatic stop function is realized that automatically stops the opening and closing operation if the opening or closing of the swing door is obstructed, while at the same time automatically closing the door after a predetermined time has elapsed, thereby enabling the door to automatically return to a closed state.

[0036] As an example, an operation of the first unit 10 returning the position of the door 1 to the initial position, i.e., the closed position, when the power is turned on can be used. When the power supply to the first unit 10 is once cut off and then turned on again, such an initial operation is performed, and as a result, the door 1 can be closed. That is, an operation of forcibly closing the door 1 can be realized by resetting or restarting. Here, a switch 22 is interposed in the power line 16 to the first unit 10, and the second control unit 21 controls ON / OFF of the switch 22. That is, when the second control unit 21 detects that the door 1 is not closed for a predetermined time or more by the opening / closing sensor 30, it turns OFF the switch 22 to once cut off the power supply to the first unit 10 via the first power line interface 15. Then, by turning ON the switch 22 again, the first control unit 11 detects the opening / closing position of the door 1 at the timing when the power supply is resumed through the first power line interface 15, and if the door 1 is not in the initial position, i.e., the closed position, can be driven by the drive unit 12 to operate the door opener 13 so as to move the door 1 to the closed position. In this way, it is possible to control the closing of the door 1 by a simple control of turning on / off the first power supply line that receives the power supply, and closing of the door 1 can be realized with a simple configuration without providing a separate signal line. In particular, by utilizing the characteristic set to return to the initial position, that is, the door closed position, when the first unit 10 is energized, a function can be easily added to prevent the door 1 from being in an open state.

[0037] A timer may be provided to regulate the door open time. For example, when the second control unit 21 detects that the door is not closed by the opening / closing sensor 30, the timer is operated, and after a predetermined time has elapsed, a door closing command is issued to the first control unit 11 to operate the driving unit 12 so as to move the door to the closed position. On the other hand, when the second control unit 21 detects that the door is closed by the opening / closing sensor 30 before the predetermined time has elapsed, the operation of the timer is stopped. This makes it possible to prevent the door from being in an open state for a predetermined time or longer. The time of the timer may be a default value or may be adjustable by the user. For example, the automatic closing function may be variable within a predetermined range, such as operating the automatic closing function within a range of 15 to 60 seconds.

[0038] Furthermore, by providing the battery unit 23 in the second unit 20, even if a power outage occurs when the door is in the open position, the second unit 20 can be operated by the battery unit 23. That is, similar to when electricity is supplied, after a predetermined time has elapsed, it is possible to detect that the door is not in the closed position, and supply driving power from the battery unit 23 to the first unit 10 to drive the drive unit 12 and move it to the closed position. In other words, a fire door that can be maintained in the closed state is realized even if a power outage occurs due to a disaster or the like while the door is being opened or closed.

[0039] 3 shows a detailed block diagram of the second unit 20. The second unit 20 shown in this figure is connected in series between the power supply unit 40 and the first unit 10. As described above, the power supply unit 40 is an adapter that converts commercial power supply AC 100V to DC 12V, and supplies power to the second unit 20 and to the first unit 10 via the second unit 20. In addition, an opening / closing sensor 30 for detecting whether the door 1 is opened or closed is connected to the second unit 20. A magnet switch or the like can be suitably used as the opening / closing sensor 30.

[0040] The second unit 20 includes an output terminal 25, an input terminal 26, a voltage detection line 27, a charge / discharge circuit 41, a first rectifier element 28A, a second rectifier element 29A, a constant voltage circuit 42, a switch 22, a second control unit 21, a battery unit 23, and a housing 24.

[0041] The input terminal 26 is connected to the power supply line 16. The voltage detection line 27 is connected to the power supply line 16A, which has the same potential as the power supply line 16, and detects a state (abnormality) in which power has been lost due to a power outage or the like. For example, the voltage detection line 27 monitors the voltage of the power supply line 16 (i.e., the power supply line 16A), and when a drop in voltage is detected, the second control unit 21 determines that an abnormality has occurred and switches to drive using the battery unit 23, thereby continuing the supply of power to the first unit 10 and driving the door 1 to move to the closed position.

[0042] The power supply line 16A connected to the power supply line 16 via the input terminal 26 is branched into a first power supply line 28 and a second power supply line 29. The first power supply line 28 is a normal power supply line for supplying power from the commercial power source AC to the second unit 20 and the first unit 10 during normal times when there is no power outage or the like. On the other hand, the second power supply line 29 is an emergency power supply line for continuing the power supply from the battery unit 23 during an abnormality such as a power outage. The first power supply line 28 and the second power supply line 29 are provided with a first rectifier element 28A and a second rectifier element 29A, respectively. A semiconductor rectifier element such as a diode can be used as the first rectifier element 28A and the second rectifier element 29A. (Charge / discharge circuit 41)

[0043] A charge / discharge circuit 41 is further provided on the second power supply line 29. The charge / discharge circuit 41 is connected to the battery unit 23, and controls charging and discharging of the battery unit 23 by the charge / discharge circuit 41. In the example of FIG. 3, the charge / discharge circuit 41 is provided between the second power supply line 29 and the battery unit 23, but the charge / discharge circuit may be provided at another position. The charge / discharge circuit 41 charges the battery unit 23 under normal circumstances and maintains it in a fully charged state. For this reason, the charge / discharge circuit 41 includes a constant current charging circuit that charges the secondary battery cells constituting the battery unit 23 with a constant current, and a constant voltage charging circuit that charges the secondary battery cells with a constant voltage. In addition, the charge / discharge circuit 41 discharges the battery unit 23 during an abnormality such as a power outage, and supplies driving power to the second unit 20 and the first unit 10. For this reason, the charge / discharge circuit 41 is controlled by switching between a charge switch that is turned on during charging and a discharge switch that is turned on during discharging. Such a charge switch and a discharge switch can be made of a semiconductor switching element such as a MOSFET. Furthermore, the second control unit 21 controls the operation of the charge / discharge circuit 41 to charge and discharge the battery unit 23 by switching the charge switch and the discharge switch ON / OFF. (Constant voltage circuit 42)

[0044] Furthermore, a constant voltage circuit 42 is provided on the discharge path of the battery module 23 so that the battery module 23 can drive the second unit 20 and the first unit 10. In the example of FIG. 3, the constant voltage circuit 42 is provided between the second rectifier element 29A and the switch 22 on the power supply line 16A. The constant voltage circuit 42 is a member that converts the output voltage of the battery module 23 into a voltage that can drive the second unit 20 and the like, and can use a DC stabilized power source such as a DC / DC converter. Here, the constant voltage circuit 42 is configured with a boost chopper circuit using a boost switching regulator, and 9.6V, which is obtained by connecting eight nickel-metal hydride batteries of 1.2V / cell in series that constitute the battery module 23, is boosted to 12V. This makes it possible to reduce the number of secondary battery cells that constitute the battery module 23 and simplify the circuit, while making it possible to supply the necessary drive power. Note that, during normal operation, the discharge switch is turned OFF, discharging of the battery module 23 is not performed, and the operation of the constant voltage circuit 42 is also stopped.

[0045] The charge / discharge circuit 41 and the constant voltage circuit 42 are controlled by the second control unit 21. The second control unit 21 monitors the power supply voltage via the voltage detection line 27. In normal times, that is, while it is confirmed that the necessary power is being supplied via the voltage detection line 27, the second control unit 21 receives power from the power supply unit 40 via the first power supply line 28, monitors the opening and closing of the door 1 with the opening / closing sensor 30, and if the door 1 is in an open state for a certain period of time or more, turns the switch 22 OFF to reset the first unit 10, and then turns the switch 22 ON again to control the door 1 to move to the closed position, which is the initial position. On the other hand, when an abnormality such as a power outage is detected via the voltage detection line 27, the second control unit 21 switches the charge switch of the charge / discharge circuit 41 OFF and the discharge switch ON, and drives the constant voltage circuit 42 to supply power from the battery unit 23 to the second unit 20 and the first unit 10. This allows the automatic opening and closing function of the door 1 to be maintained even during a power outage, and just like under normal circumstances, when it detects that the door 1 has not been closed for a predetermined period of time or more, it is possible to operate the switch 22 in the same way and move the door 1 to a closed state. In this way, the automatic swing door opening and closing device can maintain the door's closed state even during a power outage, thereby achieving a highly safe operation as a fire door.

[0046] Furthermore, the second control unit 21 may be configured to transmit a door opening / closing signal to the first unit 10. For example, the second control unit 21 can detect that the thumb turn has been rotated or moved to the unlocked position, and issue a door open command to the first control unit of the first unit 10. This allows the door 1 to be automatically opened or closed at the timing when the door 1 is unlocked. (Harness storage mechanism)

[0047] Furthermore, the harness 18 for connecting the first unit 10, the second unit 20, and the power supply unit 40 may be exposed from the door 1 or may be built into the door 1 or the door frame 2. For example, in the example shown in Fig. 4, the first unit 10 has the harness 18 drawn from the first power supply line interface 15 routed inside the door 1 and connected to an external power supply via the door frame 2. With this configuration, the harness 18 of the external power supply required for automatically opening and closing the door 1 can be prevented from being exposed to the outside from the door 1, and can be made less noticeable, improving the appearance. [Embodiment 2]

[0048] In the above embodiment, the second unit 20 is provided outside the door 1 as a separate unit from the first unit 10. The second unit 20 is disposed in a location that does not get in the way, such as near the door frame 2. However, the present invention is not limited to such a configuration, and the second unit may be provided integrally with the first unit. Such an example is shown in FIG. 5 as an automatic swing door opening / closing device 200 according to embodiment 2. In this figure, the same members as those in FIG. 2 and the like are given the same reference numerals and detailed description is omitted. In this automatic swing door opening / closing device 200, the first power line interface 15, the drive unit 12, the first control unit 11, the second control unit 21, the switch 22, and the battery unit 23 are incorporated in a common housing 34. With this configuration, it is possible to save the trouble of securing space for disposing separate members outside the door, and the advantage of a neat appearance is obtained.

[0049] In the above example, an example has been described in which the first unit 10 including the drive unit 12 is fixed to the door side, but the present invention is not limited to this configuration, and it goes without saying that the first unit 10 may also be fixed to the door frame 2 side as shown in Figure 6. [Industrial Applicability]

[0050] The swing-type door automatic opening and closing device and the door unit equipped with the same according to the present disclosure can be suitably used as an automatic opening and closing mechanism for entrance doors or interior doors of apartment buildings or houses. [Explanation of symbols]

[0051] 1000…Door unit 100, 200...Swing door automatic opening and closing device 1. Door 2. Door frame 3…Hinge 10…First unit 11...First control section 12...Drive unit 13...Door opener 14…Housing 15…First power line interface 16…power line; 16A…power supply line 17…Door movement detector 18…Harness 20…Second unit 21...Second control section 22…Switch 23…Battery section 24…Housing 25...Output terminal 26...Input terminal 27…Voltage detection line 28…First power supply line 28A…First rectifier element 29…Second power supply line 29A... Second rectifier element 30... Open / close sensor 34…Housing 40...Power supply section 41…Charging / discharging circuit 42...Constant voltage circuit AC…Commercial power supply

Claims

1. A door opener that is attached to a swing door that opens and closes by rotating around a rotation axis; A first power line interface for connecting with an external power source; a driving unit that receives power from an external source via the first power line interface and drives the door opening / closing device; a first control unit that receives a door open command, drives the drive unit to operate the door opener, and rotates and opens the door; A first unit having a switch electrically connected to the first power line interface for cutting off power supply to the first unit via the first power line interface; A second control unit that controls ON / OFF of the switch; A battery unit that drives the second control unit; and a second unit having an opening / closing sensor that detects whether a door is opened or closed; A swing door automatic opening and closing device comprising: The first control unit is configured to stop opening and closing of the door when an opening or closing operation of the door is obstructed, The second control unit is configured to, when it detects by the opening / closing sensor that the door has not been closed for a predetermined period of time or more, drive the drive unit to the first control unit to operate the door opener so as to move the door to a closed position.

2. The automatic swing door opening and closing device according to claim 1, when the second control unit detects by the opening / closing sensor that the door has not been closed for a predetermined time or longer, the second control unit turns off the switch to temporarily cut off the power supply to the first unit via the first power line interface, and then turns on the switch; The first control unit detects the open / close position of the door when power supply is resumed through the first power line interface, and if the door is not in the closed position, drives the drive unit to operate the door opener to move the door to the closed position.

3. The automatic swing door opening and closing device according to claim 1 or 2, The swing door automatic opening and closing device, wherein the door open command is detection of movement that occurs as the door is opened or closed.

4. The swing door automatic opening and closing device according to any one of claims 1 to 3, further comprising: An angle sensor is provided on a rotation shaft of the drive unit, The first control unit is configured to drive the drive unit to open or close the door in response to the angle change detected by the angle sensor due to the opening or closing of the door as a door open command.

5. The swing door automatic opening and closing device according to any one of claims 1 to 4, The second control unit detects that the door thumb turn has been moved from the locked position to the unlocked position and issues the door open command to the first control unit.

6. The swing door automatic opening and closing device according to any one of claims 1 to 5, further comprising: This swing door automatic opening and closing device is provided with a buzzer which detects that the door is not closed for a certain period of time or more and issues a warning sound.

7. The swing door automatic opening and closing device according to any one of claims 1 to 6, When the second control unit detects that the door is not closed by the opening / closing sensor, the second control unit operates a timer, After a predetermined time has elapsed, a door closing command is issued to the first control unit to operate the drive unit so as to move the door to a closing position; The device for automatically opening and closing a swing-type door is configured so that, when the opening / closing sensor detects that the door is closed before a predetermined time has elapsed, the operation of the timer is stopped.

8. The swing door automatic opening and closing device according to any one of claims 1 to 7, The first unit is a swing-type door automatic opening and closing device in which a harness drawn from the first power line interface is routed inside the door and connected to an external power source via the door frame.

9. The swing door automatic opening and closing device according to any one of claims 1 to 8, The swing door automatic opening and closing device, wherein the swing door is a fire door.

10. A swing door that rotates around a pivot to open and close; a door frame to which the door is rotatably fixed; The automatic swing door opening and closing device according to any one of claims 1 to 9, which is connected to the door and the door frame to automatically open and close the door; A door unit comprising:

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