JP2024130164A - Automatic door device - Google Patents

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

This invention relates to an automatic door device, and more specifically to an automatic door device in which the door opens and closes automatically when an unlocking operation is performed.

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).

Patent Document 1 discloses an automatic door unit that automates the opening and closing of a residential front door. This automatic door unit changes an existing front 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 a 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 when the open signal is received, an electric opener that moves the door body from the closed position to the open position when the open signal is received, and a latch release device that releases the door body from being held by the latch mechanism.

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, causing the electric thumb turn to operate the lock operation section to unlock the lock mechanism, and the electric opener is driven to move the door body to the release position, automatically opening the front door. The front door is then closed by a door closer that is already installed on the front door.

JP 2021-031978 A

However, automating doors using such conventional automatic door units had the following problems:

In other words, in conventional automatic door units, the electric thumbturn that operates the lock operation unit and the electric opener that moves the door body are configured to operate independently according to the open signal sent from the transmitter, without any coordination between them. For example, there is a risk that the electric opener will start operating before the unlocking operation by the lock operation unit is complete. In this case, the deadbolt of the lock mechanism and the strike of the door frame are not completely disengaged, resulting in a problem in which the door body is not released even when the electric opener operates.

Furthermore, with conventional automatic door units, although the door can be closed by using the existing door closer, it cannot be locked automatically. This means that, for example, wheelchair users are forced to turn 180 degrees in the narrow entrance hall after entering the room in order to lock the door, which is extremely inconvenient.

The present invention was made in consideration of these problems, and its purpose is to provide an easy-to-use automatic door device that can automatically unlock and lock the door.

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, 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, and a control unit that is communicatively connected to the electronic lock unit, the electric strike unit, and the door opening/closing unit, and when the door opening/closing unit receives an open door signal, it drives the door body from a closed door position to an open door position and holds it in that position. The control unit has a control configuration that detects the unlocking of the electronic lock unit and transmits an unlock signal to the electric strike unit, a door opening control that detects the unlocking of the electric strike unit and transmits the door opening signal to the door opening/closing unit, and a locking control that detects that the door body has returned from the open door position to the closed door position and transmits a locking signal to the electronic lock unit and the electric strike unit.

In this automatic door device, the electronic lock unit is unlocked according to the operation 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 been unlocked, the control unit detects that the electric strike unit has been unlocked and sends an open signal to the door opening and closing unit. This causes the door opening and 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 closed 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.

In a preferred embodiment of the present invention, 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 is configured to activate the air pressure difference elimination mechanism when it detects that the electric strike unit has been unlocked and before executing the door opening control.

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 and 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.

In 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 locking and unlocking signals output from the operating device, and the operating device has a means for authenticating the user's operating authority using at least one of knowledge information, possession information, and biometric information.

With this automatic door device, the electronic lock unit's operating device authenticates the user's operating authority using at least one of the following information: 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 makes it possible to prevent illegal unlocking by lock-picking, etc.

In a preferred embodiment of the present invention, the deadbolt is a sickle-type deadbolt. By using a sickle-type deadbolt as the deadbolt, it is possible to prevent the door body from being pried open, and to provide an automatic door device with excellent security.

In 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 device that is excellent in terms of crime prevention while preventing the deterioration of appearance due to the addition of a control unit.

In another preferred embodiment, the present invention has a door body slidably supported on a door frame, an electronic lock unit that locks and unlocks the door body via a deadbolt, 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 and the door opening/closing unit. When the door opening/closing unit receives an open door signal, it drives the door body from the closed position to the open position, holds it in that position for a predetermined time, and then drives it back to the closed position. The control unit detects the unlocking of the electronic lock unit and executes an open door control that transmits the open door signal to the door opening/closing unit, and detects the 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.

In this automatic door device, when the control unit detects that the electronic lock unit has been unlocked, it 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 in the open position for a predetermined 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 locking signal to the electronic lock unit. This causes the electronic lock unit to lock the electronic lock. Thus, in the automatic door device according to this embodiment, in a sliding door in which the door body is slidably supported, the door body opens and closes after the electronic lock unit detects that the door body has been unlocked, so that the door body can be opened and closed reliably without the door body being controlled to open before the electronic lock is unlocked.

According to the present invention, when the control unit detects that the electronic lock unit has been unlocked, the control unit performs a series of processes in an orderly manner, from unlocking the electric strike unit, opening and closing the door body, to locking the electronic lock unit and the electric strike unit, so that the door body can be opened and closed reliably. In addition, because the process up to locking the door body is performed as a series of processes, users who enter the room do not need to change direction to lock the door, and an easy-to-use automatic door device can be provided.

1 is a front view showing an example of an automatic door device according to the present invention. FIG. 2 is a block diagram showing an example of a schematic configuration of an electronic lock unit of the automatic door device. 10 is a flowchart showing an example of a procedure for entering a room in the automatic door device. FIG. 4 is a front view showing an example of another embodiment of the automatic door device. FIG. 4 is a front view showing an example of another embodiment of the automatic door device.

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 external appearance of an automatic door device 1 according to the present invention as seen from the outside of 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 includes 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.

The door body 2 is a component that constitutes the hinged door, and is a roughly rectangular box-like shape when viewed from the front that can accommodate the lock 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 the longer side (the side facing the end of the door), and the door body 2 is supported by the door frame 10 via these hinges 8, 8, 8 so that it can swing.

The door frame 10 is a frame body arranged in a rectangular opening (not shown) formed in the wall surface that separates the indoor and outdoor areas, and is composed of an upper frame 10a, a lower frame 10b, and left and right vertical frames 10c, 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 (the front of the paper in Figure 1) by the hinges 8, 8, 8.

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 general configuration of the electronic lock unit 3.

The lock mechanism body 11 is composed of a deadbolt 13 and its drive mechanism.
The deadbolt 13 is a member that locks the door body 2 by engaging with a strike plate (not shown) provided on the vertical frame 10c on the door end side, and in this embodiment, a sickle-type deadbolt having a deadbolt formed in a sickle shape of a roughly L-shape is used. In the illustrated example, it is composed of an upper and lower pair of sickle-type deadbolts: sickle-type deadbolt 13a, whose sickle part opens upward as the deadbolt protrudes from the door end face of the door body 2 when locked, and sickle-type deadbolt 13b, whose sickle part opens downward as the deadbolt protrudes from the door 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 crime prevention properties.

The drive mechanism for the deadbolt 13 is a mechanism that positions the deadbolt 13 in a locked position and an unlocked position, and in this embodiment, is composed of a cylinder lock mechanism 14 that works 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. In addition, a thumb turn 14b for operating the cylinder lock is provided 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 can be locked/unlocked from the interior side by operating the thumb turn 14b.

In this embodiment, the cylinder lock mechanism 14 is equipped with a power source (for example, a DC motor 15) not shown, which switches the deadbolt 13 between a locked position and an unlocked position. The DC motor 15 is connected to the operating device 12 and the control unit 6 via communication lines S1 and S2, and is configured to operate under control of 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 metal 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. Reference numeral 16 in the figure 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 lock mechanism main body 11. Additionally, reference numeral 18 denotes sensors provided in the lock mechanism body 11, and is composed of, for example, a sensor that detects the opening and closing of the door body 2 and a sensor that detects the position of the deadbolt 13 (locked position/unlocked position), and the detection results of these sensors are input to the control unit 21.

The operating device 12 is an operating device that remotely operates the locking mechanism main body 11. Specifically, this operating device 12 is a device that allows the locking mechanism main body 11 to be locked/unlocked without using a key. Therefore, this operating device 12 is equipped with a function for generating and transmitting unlocking/locking signals 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 unlocking/locking operations.

Regarding this 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.

Therefore, the operating device 12 shown in this embodiment has, in addition to a control unit 21 that controls each part of the device, an operation/display unit 22 consisting of 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, as the RFID card, for example, a card conforming to standards such as Felica (registered trademark) or Mifare (registered trademark) is used. Also, for communication with a smartphone, for example, wireless communication conforming to Bluetooth Low Energy (registered trademark) is used. Note that in FIG. 2, reference numeral 24 indicates the communication interface of the communication line S1, reference numeral 25 indicates a power supply unit of the operating device 12, and reference numeral 26 indicates an audio output unit that outputs audio such as operation sounds.

The electric strike unit 4 is an electric lock attached to the vertical frame 10c on the door end side, and is a unit that locks and unlocks the door body 2 via the latch bolt 7. In this embodiment, the electric strike unit 4 is structured to switch between locking and releasing the latch bolt 7 of the door body 2 by swinging a swinging metal fitting (not shown) provided on a strike panel attached to the vertical frame 10c. Specifically, the door body 2 is locked by locking the latch bolt 7, and the door body 2 is unlocked by releasing the latch bolt 7. This swinging metal fitting operates based on a locking signal/unlocking signal given from the control unit 6. The communication line S3 in the figure is a communication line that transmits the locking signal/unlocking signal and supplies power. Also, the symbol 9 is a push-pull type door handle that is linked to the latch bolt 7, and 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 such as a spring (not shown), is accommodated inside the door body 2.

The door opening/closing unit 5 is a device that automates the opening and closing of the door body 2. The main components of the door opening/closing unit 5 are a device main body 31 that is attached to the door frame 10, a guide rail (not shown) that is 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 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 to drive the door body 2 to open and close.

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

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 driving 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 the desired voltage and supplied to the electronic lock unit 3 and the electric strike unit 4. S4 denotes a power line.

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 (none of which are shown) with a DC/DC converter. The control unit of the control unit 6 includes 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, according to a control program. In the illustrated example, the control unit 6 is housed in the housing of the door opening/closing unit 5 (device body 31), but this is to avoid the electrical components that make up the control unit 6 being exposed to the outside and spoiling the aesthetics. Therefore, as long as the electrical components are not exposed to the outside, they may be housed in a housing other than the housing of the door opening/closing unit 5, for example.

Next, the opening and closing control of the door body 2 by the automatic door device 1 configured in this manner will be explained using Figures 3 and 4. Figure 3 shows the opening and closing procedure of the automatic door device 1 when entering a room.

A: Upon Entry (1) Before entering the 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).

(2) A user entering the room unlocks the electronic lock unit 3 using the operation 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 either 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 operation device 12. If a password is selected, the password is input 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 in the smartphone is transmitted to the wireless communication unit 23 using this application program.

(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 sends 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 inform 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 specified alarm sound from the audio output unit 26.

When an unlock signal is given to the lock mechanism main body 11, the DC motor 15 operates and the cylinder lock mechanism 14 is unlocked. That is, the deadbolt 13 is switched from the locked position to the unlocked position upon receiving the unlock signal. In this embodiment, the unlock 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 lock unit 3 (step S3 in FIG. 3). Note that in this embodiment, the unlocking of the electronic lock unit 3 is detected by the unlock signal, but it is also possible to provide a sensor in the lock mechanism main body 11 that detects the position of the deadbolt 13 (locked position/unlocked position), and to have the control unit 6 monitor the output of this sensor to detect the unlocking of the electronic lock unit 3.

(4) When the control unit 6 detects the unlocking of the electronic lock unit 3 in this manner, 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 an unlock signal from the control unit 6, it moves the swing metal fitting in the locked position to the unlocked position, releasing the constraint on the latch bolt 7 (opening the latch bolt 7), and unlocks the electric strike unit 4 (unlocking the latch lock).

(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 unlocking signal given to the electric strike unit 4, as in the detection of the unlocking of the electronic lock unit 3 described above, but it may also be configured to provide the electric strike unit 4 with a sensor that detects the position of the swing fitting (locked position/unlocked position), and to detect the unlocking of the electric strike unit 4 from the output of this sensor.

(6) When the control unit 6 detects the unlocking of the latch lock in this way, it transmits an open door signal to the door opening/closing unit 5 (step S6 in FIG. 3: door opening control). Here, since this open door 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 in principle. However, for example, in the case of a configuration in which the unlocking of the electric strike unit 4 is detected from an unlocking signal given 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 is configured to transmit the open door signal after a predetermined time T2 (for example, 0.5 seconds) has elapsed since detecting the unlocking of the electric strike unit 4. This makes it possible to avoid a situation in which the door opening/closing unit 5 operates before the latch bolt 7 is completely released from the restraint. Of course, this predetermined time T2 can be changed appropriately in consideration of the time required for the electric strike unit 4 to be unlocked.

(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 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 needs to enter 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.

(8) 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, and the control unit 6 also detects that the door body 2 is closed (Fig. 3, step S8). As a result, the control unit 6 sends a locking signal to the electronic lock unit 3 and the electric strike unit 4 (Fig. 3, steps S9 and S11), and the electronic lock unit 3 and the electric strike unit 4 perform locking control (Fig. 3, steps S10 and S12), and both the electronic lock unit 3 and the electric strike unit 4 return to the locked state (Fig. 3, step 1).

In this way, with the automatic door device 1 of 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, so that the door body 2 can be opened and closed smoothly and reliably. In addition, because the process up to locking the door body 2 is performed as a series of processes, a user who enters the room does not have to change direction to lock the door, so a user-friendly automatic door device 1 can be provided.

In the above embodiment, the electronic lock unit 3 is unlocked using the operating device 12, but it can also be unlocked using a key. In that case, the key is inserted into the keyhole 14a to unlock. When unlocked with the key, the control unit 6 detects the unlocking of the electronic lock unit 3 using a sensor that detects the position of the deadbolt 13 (locked position/unlocked position) (step S3 in Figure 3). The procedure thereafter is the same as when unlocking is performed using the operating device 12.

B: When leaving the room The procedure for leaving the room is to unlock the electronic lock unit 3 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 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 operating device on the indoor side. In this case, the user authentication function described above can be omitted when operating the operating device on the indoor side. When the electronic lock unit 3 is unlocked with this operating device on the indoor side, the door body 2 is opened and closed according to the procedure shown in FIG. 3 described above.

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 in the first embodiment, the same reference numerals are used for the common parts and the description thereof will be omitted.

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, 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 connected for communication by these wireless communication means. This makes it possible to omit the communication line S2 and the conductive metal fittings 20 inside the door body 2, thereby reducing the labor required for wiring work.

EMBODIMENT 3
Next, a third embodiment of the present invention will be described.
This embodiment shows a modified example of the automatic door system 1 shown in the above-mentioned embodiments 1 and 2, and the automatic door system 1 of this embodiment is equipped with an air pressure difference elimination mechanism that eliminates the air pressure difference 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.

The above-mentioned 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 by 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 open the air vent before sending an open door signal to the door opening/closing unit 5 (executing door open control), thereby eliminating the air pressure difference between the inside and outside of the door body 2.

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 air pressure difference 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 air pressure difference.

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

EMBODIMENT 4
Next, a fourth embodiment of the present invention will be described with reference to FIG.
5 shows 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 type hinged door in which a door body 2 is supported by a door frame 10 so as to be slidable in the horizontal direction.

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 to drive the door body 2 from the closed door position to the open door position when a door open signal is given from the control unit 6, hold it in that position for a predetermined time T1, and then drive it back 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 the same as those of the above-mentioned embodiments 1 to 3, so the same reference numerals are used for the parts that have the same configuration, and duplicate explanations will be omitted.

In the figure, reference numeral 30 denotes a conductive fitting for the communication line S2 that connects the electronic lock unit 3 and the control unit 6. Reference numeral 31 denotes a handle for sliding the door body 2.

In the automatic door device 100 thus configured, when entering a room, the electronic lock unit 3 is unlocked by the operating device 12, and 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). In this case, in order to prevent the door opening/closing unit from operating before the deadbolt 13 is 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. In this way, it is possible to avoid a situation in which the door opening/closing unit operates before the deadbolt 13 has been completely unlocked. Of course, this predetermined time T3 can be changed as appropriate, taking into account the time required to unlock the electronic lock unit 3.

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.

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, so that the door body 2 can be opened and closed smoothly and reliably. In addition, because the process up to locking the door body 2 is performed as a series of processes, a user who enters the room does not have to change direction to lock the door, so a user-friendly automatic door device 100 can be provided.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to these, and various design changes are possible within the scope of the present invention.

For example, in the above embodiment, the case where knowledge information and possession information are used as the information used for user authentication by the operation device 12 has been described, 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.

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

In addition, in the above embodiment, the swing-door type automatic door device 1 is applied to doors that separate indoors and outdoors, such as the entrance door of an apartment building or a hotel guest room door, but the automatic door device 1 of the present invention is not limited to these and can be applied to swing doors installed in various locations, such as doors used to separate rooms, or doors that separate a hallway from a staircase. Similarly, the sliding-door type automatic door device 100 can be applied to sliding doors installed in various locations, such as doors used to separate rooms or staircases.

1,100 Automatic door device 2 Door body 3 Electronic lock unit 4 Electric strike unit 5 Door opening/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 (6)

A door body that is swingably supported on a door frame via a hinge;
an electronic lock unit for locking and unlocking the door body via a deadbolt;
an electric strike unit for locking and unlocking the door body via a latch bolt;
A door opening and 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 for, upon receiving a door open signal, driving the door body from a closed door position to an open door position, maintaining the door body in that position for a predetermined period of time, and then driving the door body again to the closed door position;
This automatic door device is characterized in that the control unit has a control configuration that executes the following: latch lock unlocking control, which detects the unlocking of the electronic lock unit and sends an unlock signal to the electric strike unit; door opening control, which detects the unlocking of the electric strike unit and sends the door open signal to the door opening/closing unit; and locking control, which detects that the door body has returned from the open door position to the closed door position and sends a locking 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 eliminating mechanism that eliminates the air pressure difference between the inside and outside of the door body,
The automatic door device according to claim 1, characterized in that the control unit has a control configuration for activating the air pressure difference elimination mechanism before executing the door opening control when it detects that the electric strike unit has been unlocked. 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,
3. The automatic door system according to claim 1, wherein the operation device has a means for authenticating a user's operation authority using at least one of knowledge information, possession information, and biometric information. The automatic door device according to claim 3, characterized in that the deadbolt is in the form of a sickle-type deadbolt. The automatic door device according to claim 3, characterized in that the control unit is housed within the housing of the door opening and closing unit. A door body slidably supported by a door frame;
an electronic lock unit for locking and unlocking the door body via a deadbolt;
A door opening and closing unit that drives the door body to open and close;
a control unit that is communicatively connected to the electronic lock unit and the door opening/closing unit,
the door opening/closing unit has a control configuration for, upon receiving a door open signal, driving the door body from a closed door position to an open door position, maintaining the door body in that position for a predetermined period of time, and then driving the door body again to the closed door position;
The automatic door device is characterized in that the control unit has a control configuration that executes a door opening control in which the control unit detects the unlocking of the electronic lock unit and sends the door opening signal to the door opening/closing unit, and a locking control in which the door body detects the return of the door body from the open door position to the closed door position and sends a locking signal to the electronic lock unit.

Images