Automatic door device

Abstract

To provide a user-friendly automatic door device which can perform operations from unlocking to locking automatically.SOLUTION: An automatic door device includes: an electronic lock unit 3 including a dead bolt 13; an electric strike unit 4 engaged with a latch bolt 7; a door opening / closing unit 5 for driving a door body 2 to open / close it; and a control unit 6. The door opening / closing unit 5 is constituted in such a manner that, when it receives a door opening signal, it opens the door body 2 once and then closes it. Then, when detecting the unlocking of the electronic lock unit 3, the control unit 6 transmits an unlocking signal to the electric strike unit 4, and when detecting the unlocking of the electric strike unit 4, it transmits a door opening signal to the door opening / closing unit 5. Then, when detecting that the door body 2 has returned to the door closing position, the control unit 6 transmits a locking signal to the electronic lock unit 3 and the electric strike unit 4, and locks both the electronic lock unit 3 and the electric strike unit 4.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an automatic door system, and more particularly to an automatic door system in which a door automatically opens and closes in response to an unlocking operation. [Background technology]

[0002] In recent years, there has been a demand for barrier-free buildings so that people with disabilities and the elderly can live without hindrance. As part of this effort, it has been proposed to automate the opening and closing of doors such as entrance doors to apartment buildings and guest rooms in hotels (see, for example, Patent Document 1).

[0003] Patent Document 1 discloses an automatic door unit that automates the opening and closing of a residential entrance door. This automatic door unit converts an existing entrance door that is opened and closed manually into an automatic door that opens and closes automatically in response to an open signal transmitted from a transmitter, and includes the transmitter that transmits the open signal, an electric thumbturn that is attached to the interior side of the door body and switches the lock operation unit from the locked position to the unlocked position upon receiving the open signal, an electric opener that moves the door body from the closed position to the open position upon receiving the open signal, and a latch release device that releases the door body from being held by the latch mechanism.

[0004] To automate the front door, the latch mechanism of the front door is fixed in the released state by the latch release device, and in this state, an open signal is sent from the transmitter, which causes the electric thumb turn to operate the lock operating part to unlock the lock mechanism, and the electric opener is driven to move the door body to the released position, automatically opening the front door.The front door is then closed by the door closer that is pre-installed on the front door. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-031978 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the automation of doors using such conventional automatic door units has the following problems.

[0007] In other words, in conventional automatic door units, the electric thumbturn that operates the lock operating unit and the electric opener that moves the door body are configured to operate independently in response to an open signal sent from a transmitter, without any coordination between them, so there is a risk that the electric opener will start operating before the lock operating unit has completed its unlocking operation. In this case, the deadbolt of the lock mechanism and the strike of the door frame will not be completely disengaged, resulting in a problem where the door body will not open even if the electric opener operates.

[0008] Furthermore, while conventional automatic door units can close doors using existing door closers, they cannot lock automatically, which means that wheelchair users, for example, are forced to turn 180 degrees in the narrow entranceway to lock the door after entering, making it extremely inconvenient.

[0009] The present invention has been made in consideration of these problems, and its purpose is to provide an easy-to-use automatic door device that can automatically perform operations from unlocking to locking. [Means for solving the problem]

[0010] In order to achieve the above object, the automatic door device of the present invention comprises a door body that is swingably supported on a door frame via a hinge, an electronic lock unit that locks and unlocks the door body via a deadbolt, and an electric strike unit that locks and unlocks the door body via a latch bolt. The device includes a door opening / closing unit that drives the door body to open and close, and a control unit that is communicatively connected to the electronic lock unit, the electric strike unit, and the door opening / closing unit, wherein the door opening / closing unit has a control configuration that, upon receiving a door open signal, drives the door body from a closed door position to an open door position, holds it at that position for a predetermined time, and then drives it again to the closed door position, and the control unit has a control configuration that executes latch lock unlock control that detects unlocking of the electronic lock unit and transmits an unlock signal to the electric strike unit, door open control that detects unlocking of the electric strike unit and transmits the open door signal to the door opening / closing unit, and lock control that detects return of the door body from the open door position to the closed door position and transmits a lock signal to the electronic lock unit and the electric strike unit. The door body and / or the door frame are provided with an air pressure difference elimination mechanism that eliminates the air pressure difference between the inside and outside of the door body, and the control unit has a control configuration that, when detecting the unlocking of the electric strike unit, activates the air pressure difference elimination mechanism before executing the door opening control. It is characterized by:

[0011] In this automatic door device, the electronic lock unit is unlocked according to the operating procedure of the electronic lock unit. When the control unit detects that the electronic lock unit has been unlocked, it sends an unlock signal to the electric strike unit. This causes the electric strike unit to release the latch bolt and unlock the latch lock. When the electric strike unit has unlocked, the control unit detects that the electric strike unit has been unlocked and sends an open door signal to the door opening / closing unit. This causes the door opening / closing unit to drive the door body from the closed position to the open position, hold the door body at the open position for a predetermined period of time, and then drive it back to the closed position. When the door body returns to the closed position in this way, the control unit detects that the door body has returned to the closed position and sends a lock signal to the electronic lock unit and the electric strike unit. This causes the electronic lock unit and the electric strike unit to lock the electronic lock and the latch lock. In this way, with the automatic door device of the present invention, the latch lock is unlocked and the door body is opened and opened after detecting the unlocking of the electronic lock unit, so the door body opening control is not executed before the electronic lock is unlocked, and the door body can be opened and closed reliably.

[0013] Also,With this automatic door device, the air pressure difference elimination mechanism is activated before the door-opening control is executed, so the air pressure difference between the inside and outside of the door body is eliminated before the door opening / closing unit opens or closes the door body. Therefore, the door body can be opened and closed smoothly without being affected by the air pressure difference.

[0014] In addition, as a preferred embodiment of the present invention, the electronic lock unit has an operating device that accepts locking and unlocking operations, and a locking mechanism main body that positions the deadbolt in the locked position and the unlocked position in response to the locking signal and the unlocking signal output from the operating device, and the operating device is characterized in that it has a means for authenticating the user's operating authority using at least one of knowledge information, possession information, and biometric information.

[0015] With this automatic door system, the operating device for the electronic lock unit authenticates the user's operating authority using at least one of knowledge information, possession information, and biometric information, so the electronic lock unit can be locked and unlocked without using a physical key. This eliminates the need to provide a physical keyhole on the outside of the door body, and prevents illegal unlocking by picking or other means.

[0016] In addition, as a preferred embodiment of the present invention, the deadbolt is a sickle bolt. By using a sickle bolt as the deadbolt, it is possible to prevent the door body from being forced open, providing an automatic door system with excellent security.

[0017] In addition, as a preferred embodiment of the present invention, the control unit is housed within the housing of the door opening and closing unit. By housing the control unit within the housing of the door opening and closing unit in this way, it is possible to provide an automatic door system that is excellent in security while preventing the deterioration of appearance due to the addition of a control unit. [Effects of the Invention]

[0020] According to the present invention, when the control unit detects the unlocking of the electronic lock unit, the control unit performs a series of processes in an orderly manner, from unlocking the electric strike unit, opening and closing the door body, and locking the electronic lock unit and the electric strike unit, so that the door body can be opened and closed reliably.In addition, since the process up to locking the door body is performed as a series of processes, a user who enters a room does not have to change direction to lock the door, and an easy-to-use automatic door system can be provided. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a front view showing an example of an automatic door device according to the present invention. [Figure 2] FIG. 2 is a block diagram showing an example of a schematic configuration of an electronic lock unit of the automatic door device. [Figure 3] 10 is a flowchart showing an example of a procedure for entering a room using the automatic door device. [Figure 4] FIG. 10 is a front view showing an example of another embodiment of the automatic door device. [Figure 5] FIG. 10 is a front view showing an example of another embodiment of the automatic door device. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Embodiment 1 Fig. 1 shows an example of the appearance of an automatic door device 1 according to the present invention as seen from outside a room. The automatic door device 1 shown in the figure is in the form of a hinged door that can be used, for example, as an entrance door for an apartment building or a guest room door for a hotel, and is equipped with a door body 2, an electronic lock unit 3, an electric strike unit 4, a door opening / closing unit 5, and a control unit 6 as its main components.

[0023] The door body 2 is a component that constitutes the hinged door, and is shaped like a roughly rectangular box when viewed from the front, capable of accommodating the locking mechanism main body 11 and latch bolt 7, which will be described later. One end of hinges 8, 8, 8 is attached to one side of its longitudinal side (the side toward the end of the door), and the door body is supported by the door frame 10 via these hinges 8, 8, 8 so that it can swing.

[0024] The door frame 10 is a frame body arranged in a rectangular opening (not shown) formed in the wall surface that separates the interior and exterior of the room, and is composed of an upper frame 10a, a lower frame 10b, and left and right vertical frames 10c and 10d. The other ends of the hinges 8, 8, 8 are attached to the vertical frame 10d that is arranged on the door end side of the door body 2, thereby attaching the door body 2 to the door frame 10. The door body 2 is attached so that it opens to the outside of the room (toward the viewer in FIG. 1) by the hinges 8, 8, 8.

[0025] The electronic lock unit 3 is a device that locks and unlocks the door body 2 via a deadbolt 13, and is composed of a lock mechanism main body 11 and an operating device 12 for the lock mechanism main body 11. Figure 2 is a functional block diagram showing an example of the schematic configuration of the electronic lock unit 3.

[0026] The lock mechanism body 11 is composed of a deadbolt 13 and its drive mechanism. The deadbolt 13 is a component that locks the door body 2 by engaging with a strike plate (not shown) provided on the vertical frame 10c on the door front side, and in this embodiment, a sickle-type deadbolt with a deadbolt formed in a roughly L-shaped sickle shape is used. In the example shown, it is composed of an upper and lower sickle-type deadbolt 13a, whose sickle portion opens upward as the deadbolt protrudes from the door front end face of the door body 2 when locked, and a sickle-type deadbolt 13b, whose sickle portion opens downward as the deadbolt protrudes from the door front end face of the door body 2 when locked. Such sickle-type deadbolts make it difficult to pry open the door body 2, providing a door with excellent security.

[0027] The drive mechanism for the deadbolt 13 is a mechanism that positions the deadbolt 13 between the locked and unlocked positions, and in this embodiment is composed of a cylinder lock mechanism 14 that operates in conjunction with the deadbolt 13. This cylinder lock mechanism 14 is provided with a keyhole 14a for operating the cylinder lock on the exterior side of the door body 2. It is also provided with a thumb turn 14b for operating the cylinder lock on the interior side. In other words, this cylinder lock mechanism 14 is configured so that it can be locked / unlocked from the exterior side using a key, and from the interior side by operating the thumb turn 14b.

[0028] In this embodiment, the cylinder lock mechanism 14 is provided with a power source (for example, a DC motor 15) not shown, and this DC motor 15 is capable of switching the deadbolt 13 between a locked position and an unlocked position. The DC motor 15 is communicatively connected to the operating device 12 and the control unit 6 via communication lines S1 and S2, and is configured to operate under control from the operating device 12 and the control unit 6. In this embodiment, the communication line S2 also serves as a power line that supplies driving power (for example, DC 6V) to the DC motor 15. Reference numeral 20 denotes an electrically conductive fitting 20 that connects the wiring of the communication line S2 on the door body 2 side to the wiring on the door frame 10 side. Also, in the drawing, sign Reference numeral 16 denotes a communication interface with the communication lines S1 and S2, and reference numeral 17 denotes a power supply unit that supplies power to each part of the locking mechanism main body 11. Reference numeral 18 denotes sensors provided in the locking mechanism main body 11, such as a sensor that detects the opening and closing of the door body 2 and a sensor that detects the position (locked position / unlocked position) of the deadbolt 13, and the detection results of these sensors are input to the control unit 21.

[0029] The operating device 12 is an operating device that remotely operates the locking mechanism main body 11. Specifically, the operating device 12 is a device that enables locking / unlocking of the locking mechanism main body 11 without using a key. Therefore, the operating device 12 is provided with a function for generating and transmitting an unlocking signal / locking signal to the locking mechanism main body 11, as well as a user authentication function for determining whether or not the user is an authorized user (whether or not the user has the authority to operate), and only users who pass the user authentication can perform the locking / unlocking operation.

[0030] Regarding the user authentication function, the operation device 12 shown in this embodiment is configured to perform user authentication using knowledge information and possession information. Specifically, a password is used as knowledge information, and ID data stored in an RFID (radio frequency identification) card and ID data stored in a smartphone are used as possession information, and the operation device 12 is configured to perform user authentication using at least one of these pieces of information.

[0031] Therefore, the operating device 12 shown in this embodiment has, in addition to a control unit 21 that controls each unit of the device, an operation / display unit 22 configured with a touch panel as a password input means, and a wireless communication unit 23 used for communication with an RFID card or a smartphone. Here, the RFID card used may be a card that complies with standards such as FeliCa (registered trademark) or Mifare (registered trademark). For communication with a smartphone, wireless communication that complies with Bluetooth Low Energy (registered trademark), for example, is used. In FIG. 2, reference numeral 24 denotes a communication interface of the communication line S1, reference numeral 25 denotes a power supply unit for the operating device 12, and reference numeral 26 denotes an audio output unit that outputs audio such as operation sounds.

[0032] The electric strike unit 4 is an electric lock attached to the vertical frame 10c on the door end side and locks and unlocks the door body 2 via the latch bolt 7. In this embodiment, the electric strike unit 4 is configured to switch between locking and releasing the latch bolt 7 of the door body 2 by swinging a swinging fitting (not shown) attached to a strike panel attached to the vertical frame 10c. Specifically, the door body 2 is locked by locking the latch bolt 7, and unlocked by releasing the latch bolt 7. This swinging fitting operates based on a locking signal / unlocking signal provided by the control unit 6. A communication line S3 in the figure is a communication line for transmitting the locking signal / unlocking signal and supplying power. Also, reference numeral 9 denotes a push-pull door handle linked to the latch bolt 7. By pulling this door handle 9 toward you, the latch bolt 7, which is held in a protruding state from the door body 2 by a biasing means (not shown), such as a spring, is retracted into the door body 2.

[0033] The door opening / closing unit 5 is a device that automates the opening and closing of the door body 2. This door opening / closing unit 5 mainly comprises a device main body 31 attached to the door frame 10, a guide rail (not shown) attached to the door body 2, and a connecting arm (not shown) that connects the device main body 31 and the guide rail. The device main body 31 is further equipped with a DC motor (not shown) that drives the connecting arm, a control unit (not shown) for the DC motor, and a communication interface (not shown) that receives an open door signal / close door signal, and is configured so that the control unit controls the DC motor in response to the open door signal / close door signal input to the communication interface, thereby driving the door body 2 to open or close.

[0034] The control unit of the DC motor is equipped with a microcomputer, and drive control of the DC motor, i.e., opening and closing control of the door body 2, is performed according to a program of the microcomputer. In this embodiment, the opening and closing control of the door body 2 is performed, for example, by receiving a door-open signal, driving the DC motor to drive the door body 2 from a predetermined closed position to a predetermined open position, and then holding the door body 2 at that position (open position) for a predetermined time T1, and then driving the door body 2 again to a predetermined closed position. The details of the opening and closing control of the door body 2 can be changed as needed by changing the settings of the control unit (microcomputer settings). For example, it is possible to change the open and closed positions of the door body 2, or to adopt a control configuration in which the door body 2 is driven to the open position upon receiving a door-open signal and held there until a close signal is received, and then driven to the closed position upon receiving a close signal. In addition, the holding time for holding the door body 2 at the open position can also be changed as needed by changing the settings of the control unit.

[0035] In Fig. 1, reference numeral 35 denotes a plug that connects to a commercial power outlet 40, and reference numeral 36 denotes an AC adapter that converts commercial power into DC power. As shown in the figure, the power converted to DC by the AC adapter 36 is supplied to the door opening / closing unit 5 and used as drive power for the door opening / closing unit 5. In this embodiment, this DC power is also supplied to the control unit 6, where it is converted to a desired voltage and supplied to the electronic lock unit 3 and the electric strike unit 4. S4 denotes a power line.

[0036] The control unit 6 is a control device that links the electronic lock unit 3, the electric strike unit 4, and the door opening / closing unit 5, and includes a control unit, a communication interface, and a power supply unit with a DC / DC converter (none of which are shown). The control unit of the control unit 6 is equipped with a control microcomputer, which is configured to execute various controls such as latch lock unlocking control, door opening control, and locking control, which will be described later, in accordance with a control program. In the illustrated example, the control unit 6 is housed within the housing of the door opening / closing unit 5 (device main body 31). This is to avoid damaging the aesthetic appearance by exposing the electrical components and other components that make up the control unit 6 to the outside. Therefore, the control unit 6 may be housed in a housing other than the housing of the door opening / closing unit 5, for example, as long as the electrical components and other components are not exposed to the outside.

[0037] Next, the opening and closing control of the door body 2 by the automatic door device 1 configured as above will be explained with reference to Figures 3 and 4. Figure 3 shows the opening and closing procedure of the automatic door device 1 when entering a room.

[0038] A: When entering the room (1) Before entering a room, both the electronic lock unit 3 and the electric strike unit 4 of the automatic door device 1 are in the locked state (Step S1 in FIG. 3).

[0039] (2) A user entering the room unlocks the electronic lock unit 3 using the operating device 12 installed on the outside of the door body 2 (Step S2 in Figure 3). When performing the unlocking operation, user authentication is performed to determine whether the user has the authority to unlock. In this embodiment, user authentication can be performed using a password, ID data stored in an RFID card, or ID data stored in a smartphone, so the user selects the information to be used for user authentication from these and inputs it into the operating device 12. If a password is selected, the password is entered into the operation and display unit 22. If an RFID card is selected, the RFID card is held over the wireless communication unit 23 to read the ID data. If a smartphone is selected, a dedicated application program installed on the smartphone is started, and the ID data stored on the smartphone is transmitted to the wireless communication unit 23 using this application program.

[0040] (3) When the password or ID data is input in this manner, the control unit 21 of the operating device 12 performs user authentication based on the input password or ID data. If the user authentication is successful (if the user is authorized), the control unit 21 transmits an unlock signal to the lock mechanism main body 11. On the other hand, if the user authentication is unsuccessful, a process is executed to notify the user that the user authentication has failed, for example, by displaying on the operation / display unit 22 that the user authentication has failed or by outputting a predetermined alarm sound from the audio output unit 26.

[0041] When an unlock signal is given to the locking mechanism main body 11, the DC motor 15 operates to unlock the cylinder locking mechanism 14. That is, upon receiving the unlocking signal, the deadbolt 13 is switched from the locked position to the unlocked position. In this embodiment, the unlocking signal sent from the operating device 12 is also given to the control unit 6 via the communication interfaces 24 and 16. As a result, the control unit 6 detects the unlocking of the electronic locking unit 3 (step S3 in FIG. 3). Note that while this embodiment has shown a case where the unlocking of the electronic locking unit 3 is detected by the unlocking signal, it is also possible to configure the locking mechanism main body 11 to be provided with a sensor that detects the position of the deadbolt 13 (locked position / unlocked position), and the control unit 6 to monitor the output of this sensor to detect the unlocking of the electronic locking unit 3.

[0042] (4) When the control unit 6 detects the unlocking of the electronic lock unit 3 in this way, it sends an unlock signal to the electric strike unit 4 (Step S4 in Fig. 3: latch lock unlocking control). When the electric strike unit 4 receives the unlock signal from the control unit 6, it moves the swinging metal fitting in the locked position to the unlocked position, releasing the constraint on the latch bolt 7 (releasing the latch bolt 7), and unlocks the electric strike unit 4 (unlocking the latch lock).

[0043] (5) The unlocking of the electric strike unit 4 is detected by the control unit 6 (step S5 in FIG. 3). This detection may be performed by monitoring the unlock signal given to the electric strike unit 4, as in the detection of the unlocking of the electronic lock unit 3 described above. Alternatively, a sensor may be provided in the electric strike unit 4 to detect the position of the swinging metal fitting (locked position / unlocked position), and the unlocking of the electric strike unit 4 may be detected from the output of this sensor.

[0044] (6) Upon detecting the unlocking of the latch lock in this manner, the control unit 6 transmits a door-opening signal to the door opening / closing unit 5 (Step S6 in FIG. 3: Door-opening control). Since this door-opening signal is transmitted after detecting the unlocking of the electric strike unit 4, the door opening / closing unit 5 will not operate before the latch bolt 7 is released. However, for example, in a configuration in which the unlocking of the electric strike unit 4 is detected based on an unlocking signal provided to the electric strike unit 4, there is a slight time lag between the reception of the unlocking signal and the release of the latch bolt 7. Taking this time lag into consideration, in this embodiment, the control unit 6 transmits the door-opening signal after a predetermined time T2 (e.g., 0.5 seconds) has elapsed since detecting the unlocking of the electric strike unit 4. This prevents the door opening / closing unit 5 from operating before the latch bolt 7 is completely released. It goes without saying that this predetermined time T2 can be changed as needed, taking into account the time required to unlock the electric strike unit 4.

[0045] (7) When the door opening / closing unit 5 receives the door open signal, the control unit of the door opening / closing unit 5 executes the above-mentioned opening / closing control of the door body 2. That is, the door body 2 is driven from the closed door position to the open door position, and is held in that position for a predetermined time T1, and then the door body 2 is driven again to the closed door position. The user simply enters the room while the door body 2 is open, and after entering the room, the door body 2 automatically returns to the closed door position.

[0046] (8) When the door body 2 returns to the closed position, the sensors 18 of the locking mechanism body 11 detect that the door body 2 is closed, and the control unit 6 also detects that the door body 2 is closed (Step S8 in Fig. 3). As a result, the control unit 6 sends a locking signal to the electronic lock unit 3 and the electric strike unit 4 (Steps S9 and S11 in Fig. 3), and the electronic lock unit 3 and the electric strike unit 4 perform locking control, respectively (Steps S10 and S12 in Fig. 3), and both the electronic lock unit 3 and the electric strike unit 4 return to the locked state (Step 1 in Fig. 3).

[0047] As described above, with the automatic door device 1 according to the present invention, when a user unlocks the electronic lock unit 3, the control unit 6 detects the unlocking of the electronic lock unit 3 and performs a series of processes in an orderly manner, from unlocking the electric strike unit 4 to opening and closing the door body 2, and then locking the electronic lock unit 3 and the electric strike unit 4, thereby ensuring smooth and reliable opening and closing of the door body 2. Furthermore, because the process up to locking the door body 2 is performed as a series of processes, a user who has entered the room does not have to change direction to lock the door, making it possible to provide an easy-to-use automatic door device 1.

[0048] In the above-described embodiment, the electronic lock unit 3 is unlocked using the operating device 12, but it is of course also possible to unlock it using a key. In this case, the key is inserted into the keyhole 14a to unlock it. When unlocking is performed using the key, the control unit 6 detects the unlocking of the electronic lock unit 3 using a sensor that detects the position (locked position / unlocked position) of the deadbolt 13 (step S3 in FIG. 3). The subsequent procedures are the same as when unlocking is performed using the operating device 12.

[0049] B: When leaving the room When exiting, the electronic lock unit 3 is unlocked by operating the thumb turn 14b provided on the indoor side of the door body 2. The procedure after unlocking with the thumb turn 14b is the same as the unlocking procedure using the key described above. It is also possible to provide an operating device (not shown) similar to the operating device 12 on the indoor side of the door body 2, in which case the user can unlock the door body 2 using the indoor operating device. In this case, the user authentication function described above can be omitted when operating the indoor operating device. When the electronic lock unit 3 is unlocked with this indoor operating device, the door body 2 is opened and closed according to the procedure shown in Figure 3 above.

[0050] Embodiment 2 Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, the electronic lock unit 3 and the control unit 6 are wirelessly connected for communication. Since the other configurations are the same as those of the first embodiment, the same reference numerals are used for the common components and the description thereof will be omitted.

[0051] In the automatic door device 1 shown in this embodiment, the electronic lock unit 3 is configured to be powered by a battery (not shown). For example, the power supply section 25 of the operating device 12 is configured to be battery-powered, and the power is supplied to the lock mechanism main body 11 via the communication line S1. Accordingly, either the lock mechanism main body 11 or the operating device 12 and the control unit 6 are each provided with wireless communication means (not shown), and the electronic lock unit 3 and the control unit 6 are communicatively connected by these wireless communication means. This makes it possible to omit the communication line S2 and the conductive fitting 20 inside the door body 2, thereby reducing the labor required for wiring work.

[0052] Embodiment 3 Next, a third embodiment of the present invention will be described. This embodiment shows a modified example of the automatic door device 1 shown in the above-mentioned embodiments 1 and 2, and the automatic door device 1 of this embodiment is equipped with an air pressure difference elimination mechanism that eliminates the difference in air pressure between the inside and outside of the door body 2 when the door body 2 is opened or closed. This air pressure difference elimination mechanism is mainly composed of, for example, an air vent (not shown) provided in the door body 2 and an air vent opening and closing mechanism (not shown) that opens and closes this air vent.

[0053] The air vent is formed at an appropriate position in the door body 2, penetrating the door body 2. The air vent opening / closing mechanism is configured to open and close the air vent using the control unit 6. In this embodiment, when the control unit 6 detects that the electric strike unit 4 has been unlocked, it activates the air vent opening / closing mechanism to put the air vent into a vented state, thereby eliminating the difference in air pressure between the inside and outside of the door body 2, before sending a door open signal to the door opening / closing unit 5 (executing door open control).

[0054] Therefore, with the automatic door device 1 according to this embodiment, when the door opening / closing unit 5 opens and closes the door body 2, the difference in air pressure between the inside and outside of the door body 2 is eliminated, so the door body 2 can be opened and closed smoothly without being hindered by the difference in air pressure.

[0055] In this embodiment, the through-hole of the air pressure difference elimination mechanism is opened in the door body 2, but the air pressure difference elimination mechanism may have any structure that can eliminate the air pressure difference between indoors and outdoors. For example, the through-hole may be provided in the door frame 10, or in both the door body 2 and the door frame 10.

[0056] Embodiment 4 Next, a fourth embodiment of the present invention will be described with reference to FIG. Figure 5 shows an example of an automatic door device according to the present invention applied to a sliding door. As shown in the figure, the automatic door device 100 shown in this embodiment is in the form of a single-swing hinged door in which the door body 2 is supported by the door frame 10 so that it can slide horizontally.

[0057] Therefore, in this automatic door device 100, the latch bolt 7 and electric strike unit 4 are omitted, and the door opening / closing unit (not shown) is configured as a unit corresponding to a sliding door. Specifically, this door opening / closing unit has a structure that can slide the door body 2 between a predetermined open door position and a predetermined closed door position, and is configured so that when a door open signal is given from the control unit 6, the door body 2 is driven from the closed door position to the open door position, held in that position for a predetermined time T1, and then driven again to the closed door position. The other configurations, i.e., the door body 2, electronic lock unit 3, and control unit 6 structures are generally common to the above-mentioned embodiments 1 to 3, so common parts are designated by the same reference numerals and redundant explanations will be omitted.

[0058] In the figure, reference numeral 30 denotes a conductive metal fitting of the communication line S2 that connects the electronic lock unit 3 and the control unit 6 for communication. 2 is a handle for sliding the door body 2.

[0059] In the automatic door device 100 configured as described above, when a person enters a room, the operation device 12 is used to unlock the electronic lock unit 3. When the control unit 6 detects that the electronic lock unit 3 has been unlocked, the control unit 6 sends a door-opening signal to the door opening / closing unit (door-opening control). To prevent the door opening / closing unit from operating before the deadbolt 13 has been unlocked, the control unit 6 sends the door-opening signal a predetermined time T3 (e.g., 0.5 seconds) after detecting that the electronic lock unit 3 has been unlocked. This prevents the door opening / closing unit from operating before the deadbolt 13 has been completely unlocked. It goes without saying that the predetermined time T3 can be changed as needed, taking into account the time required to unlock the electronic lock unit 3.

[0060] Then, the door opening / closing unit opens and closes the door body 2 in response to the door open signal, and when the door body 2 returns to the closed position, the sensors 18 of the locking mechanism main body 11 detect that the door body 2 is closed, which causes the control unit 6 to detect that the door body 2 is closed and perform locking control by sending a locking signal to the electronic lock unit 3, causing the electronic lock unit 3 to return to the locked state.

[0061] In this way, with the automatic door device 100 of the present invention, even in the case of a swing door, the control unit 6 detects the unlocking of the electronic lock unit 3 and performs the process from opening and closing the door body 2 to locking the electronic lock unit 3 in an orderly manner, ensuring smooth and reliable opening and closing of the door body 2. Furthermore, because the process up to locking the door body 2 is performed as a series of processes, users who enter the room do not need to change direction to lock the door, making it possible to provide a user-friendly automatic door device 100.

[0062] The above-described embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to these, and various design modifications are possible within the scope of the present invention.

[0063] For example, in the above-described embodiment, knowledge information and possession information are used as information used for user authentication by the operation device 12, but biometric information can be used instead of or in addition to these. User authentication may be configured to be performed using at least one of knowledge information, possession information, and biometric information, and user authentication may be configured to be performed using two or more elements.

[0064] In addition, in the above-described embodiment, the cylinder lock mechanism 14 is provided with the keyhole 14a, but with the automatic door device 1 according to the present invention, the keyhole 14a can be omitted because the electronic lock unit 3 can be unlocked using the operating device 12. This makes it possible to prevent unauthorized unlocking by lock picking, and provides an automatic door device 1 with excellent security.

[0065] Furthermore, in the above-described embodiment, the swing-door type automatic door system 1 is shown as being applied to a door that separates indoors from outdoors, such as an entrance door for an apartment building or a guest room door for a hotel, but the automatic door system 1 according to the present invention is not limited to these and can be applied to swing doors installed in various locations, such as a door used to separate an interior of a room or a door separating a hallway from a stairwell.Similarly, the sliding-door type automatic door system 100 can be applied to sliding doors installed in various locations, such as a door used to separate an interior of a room or a stairwell. [Explanation of symbols]

[0066] 1,100 Automatic door devices 2. Doors 3 Electronic lock unit 4 Electric Strike Unit 5 Door opening and closing unit 6. Control Unit 7 Latch bolt 8 Hinge 10 Door Frame 11 Lock mechanism body 12 Operating device 13 Deadbolt 14 Cylinder lock mechanism 14a Keyhole 14b Thumb turn

Claims

1. a door body that is swingably supported on a door frame via a hinge; an electronic lock unit that locks and unlocks the door body via a deadbolt; an electric strike unit that locks and unlocks the door body via a latch bolt; a door opening / closing unit that drives the door body to open and close; a control unit communicatively connected to the electronic lock unit, the electric strike unit, and the door opening / closing unit; the door opening / closing unit has a control configuration that, upon receiving a door open signal, drives the door body from a closed door position to an open door position, holds it at that position for a predetermined time, and then drives it again to the closed door position; The control unit has a control configuration for executing latch lock unlocking control that detects the unlocking of the electronic lock unit and sends an unlock signal to the electric strike unit, door opening control that detects the unlocking of the electric strike unit and sends the door open signal to the door opening / closing unit, and locking control that detects that the door body has returned from the door open position to the door closed position and sends a locking signal to the electronic lock unit and the electric strike unit, and The door body and / or the door frame are provided with an air pressure difference elimination mechanism that eliminates the air pressure difference between the inside and outside of the door body, The control unit has a control configuration for activating the air pressure difference elimination mechanism before executing the door opening control when detecting the unlocking of the electric strike unit. An automatic door device characterized by:

2. The electronic lock unit has an operating device that accepts locking and unlocking operations, and a lock mechanism main body that positions the deadbolt in a locked position and an unlocked position in response to a locking signal and an unlocking signal output from the operating device, The operation device has a means for authenticating the operation authority of a user using at least one of knowledge information, possession information, and biometric information.

2. The automatic door device according to claim 1.

3. 3. The automatic door system according to claim 2, wherein the deadbolt is in the form of a sickle deadbolt.

4. 3. The automatic door device according to claim 2, wherein the control unit is accommodated in a housing of the door opening / closing unit.

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