JP2594449B2 - Automatic door opening and closing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door opening / closing device, and more particularly, to a door automatic opening / closing device suitable for automatically opening a door from a remote position using a remote control signal. Related to the device.

2. Description of the Related Art Conventionally, a system for remotely controlling a door lock has been known. This system emits a key code signal (for example, an infrared signal) from a portable transmitter and is received by a receiver mounted on the door. When the key load signal matches a key code specific to the door lock, the door lock is transmitted. The lock is configured to be unlocked.

[Problems to be Solved by the Invention] However, in the conventional system, even if the door lock can be unlocked by remote control, the door cannot be opened in the case of the door having the latch. For this reason, after the user unlocks the door lock by remote control, the door must be opened by turning the door knob by hand to release the latch.

Therefore, it is necessary to put down the luggage and open the door, for example, when holding the luggage with both hands. An object of the present invention is to provide an automatic door opening / closing device that can automatically open a door in response to a remote operation.

Means for Solving the Problems To achieve the above object, an automatic door opening and closing device of the present invention has a door lock mechanism remotely controlled from outside the door and a latch mechanism for holding the door closed. An opening / closing door provided with a door closer for applying a closing force to the door, wherein the unlocking of the latch mechanism is released in accordance with the unlocking of the door locking mechanism; It is configured to include a door drive unit that opens the door from the closed state and holds the door for a predetermined time against the closing force of the door closer.

Further, the automatic door opening and closing device of the present invention includes a door state sensor that detects an open / closed state of a door, a lock bolt position sensor that detects a lock bolt position of a door lock mechanism, and a latch state sensor that detects a state of a latch mechanism. When a key code signal unique to the door lock is received as a remote control signal, the door is closed by the door state sensor, the lock bolt is in the lock position by the lock bolt position sensor,
Command means for outputting a door open command on condition that each of the latch mechanisms is detected to be in the latched state by the latch state sensor, and a lock bolt for retracting the lock bolt from the lock position to the unlock position by the door open command Drive means, latch release means for releasing the latch mechanism from a latched state to an unlatched state by a door open command, a lock bolt to an unlock position by a lock bolt position sensor, and a latch mechanism to a latch release position by a latch state sensor. On the condition that each of them is detected, the door may be opened against the door closing urging force of the door closer, and the door driving unit may hold the state for a predetermined time.

[Operation] When a remote control signal is transmitted from outside the door, the door is locked or unlocked by the door lock mechanism.

When the lock is unlocked, the latch releasing means releases the latch of the latch mechanism in conjunction with the unlocking or in response to a remote control signal.

When the lock is unlocked and the latch is released, the door is released from the closed state by the door driving means. The door is opened by the door driving means for a predetermined time, and then the door is closed by the closing force of the door closer.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, a controller 10 is constituted by a microcomputer having a CPU, a ROM, a RAM, and the like, and includes a receiver 11, a lock bolt position sensor 12, a latch state sensor.
13, based on the output of the door state sensor 14, an actuator 15 as a lock bolt driving unit, an actuator 16 as a latch release unit, and an actuator 17 as a door driving unit are controlled. Further, audio is output from the speaker 19 via the audio device 18. The receiver 11 is configured to receive an infrared signal from a portable transmission key 20 including a transmitter, demodulate a key code signal modulated into an infrared signal, and output the demodulated key code signal to the controller 10. .

The controller 10 is configured to determine whether the key code signal from the receiver 11 matches a preset key code specific to the door, and when a correct determination result is obtained, the lock bolt Based on the output signals of the position sensor 12, the latch state sensor 13, and the door state sensor 14, a door open command or a door close command is issued to each of the actuators 15, 1
Output to 6.

The lock bolt position sensor 12, as shown in FIG.
A switch device disposed above the inside of the device case 21a provided on the door 21. The contact opens and closes depending on whether or not the supporter 23 supporting the lock bolt 22 pushes the detector 12a. 22 positions are detected. That is, when the detector 12a slides on the taper of the supporter 23 and is pushed, it is detected that the lock bolt 22 is at the unlock position shown in the drawing, and the detector 12a
When a does not contact the supporter 23, the lock bolt 22 is inserted into the lock hole 37 of the wall 24 to detect that it is at the lock position.

As shown in FIG. 2, the latch state sensor 13 is a switch device provided below the device case 21a, and is used to determine whether the detector 13a is pushed by the rear end of the rod 25 that is moved by the operation of the actuator 16. The contact opens and closes depending on whether or not the switch is open, and the state of the latch 26 is detected based on the open / closed state of the contact.

That is, when the detector 13a is in a non-contact state with the rear end of the rod 25 integrated with the latch 26, the latch 26 is inserted into the latch hole 27 of the wall 24 to detect that the latch is in the latched state. The latch 26 is retracted from the latch hole 27 so that the latch 13a is pushed by the rear end of the rod 25, thereby detecting that the latch is released.

The door state sensor 14 includes a magnet 28 disposed on a wall and a reed switch 29 disposed in the device case 21a. When the door 21 is closed and the magnet 28 and the reed switch 29 are in a close position. Reed switch 29
It turns ON, detects the closed state of the door, and turns off the reed switch 29 when the door 21 is opened and the magnet 28 and the reed switch 29 are separated, and detects the open state of the door. ing. Actuator 15 is shown in FIGS.
As shown in FIG. 4, the motor 30 rotates forward / reverse in response to a command from the controller 10, meshes with a worm 31, a worm wheel 32 provided on the motor shaft, and an interlock gear 32a which rotates integrally with the worm wheel 32. A gear 33, a pinion 34 that rotates integrally with the gear 33, a rack 35, and two supports 23. The lock bolt 22 is supported by a pin 40 loosely inserted into a guide hole 23 a of the supporter 23.
The rack 35 is mounted between the two supporters 23 by pins 39 which are axially inserted into shaft holes 23b provided at the rear of the rack 35. The tongue piece of the holder 36 is slidably inserted into the guide hole 23a of the supporter 23, and a spring 38 for expanding the pressure is provided between the holder 36 and the rear rising portion of the rack 35. The pin 40 is pushed by the spring 38 until the pin 40 contacts the end of the guide hole 23a.

A spring 4 that slides on the taper of the supporter 23
Stoppers 41 and 42 are provided to hook the 3 and 44.

When the motor 30 is driven to rotate forward, the actuator 15 having the above-described configuration includes the worm 31, the worm wheel 32, and the gears 32a, 3a.
3. The rack 35 driven via the pinion 34 moves in the direction of the arrow X, and the lock bolt 22 moves backward to the unlock position. When the motor 30 is driven to rotate in the reverse direction, the rack 35 moves in the direction of the arrow Y in the opposite direction, and the lock bolt 22
The lock hole 37 is inserted into the lock hole 37 and moves forward to the lock position.

The above-described actuator 15 is configured to be able to lock and unlock by rotating the gear 33 using a key that is manually operated. For this reason, a clutch mechanism that is connected only when driven by the motor 30 is provided between the gear 33 and the interlocking gear 32a, and this key mechanism is released when the key is operated so that the motor 30 does not become a load. .

The actuator 16 has a latch 26 as shown in FIG.
And a rod 25 integral with the solenoid 46 and the latch 26. When the solenoid 46 is in the non-excited state, the latch 26 is inserted into the latch hole 27 by the projecting force of the spring 45, and the latch state is established.

On the other hand, when the solenoid 46 is excited, the rod 25 moves backward against the urging force of the spring 45, and the
To the unlatched state. The bracket 47 attached to the rear end of the rod 25 has a lever fixed to the knob shaft 48.
When the knob shaft 48 is rotated by manual operation, the lever 49 moves in the direction of the arrow Z, and the rod 25 is forcibly moved backward.

The actuator 17 is, as shown in FIGS. 5 and 6,
A link 50 fixed to the ceiling, a door closer 51 fixed to the door 21, a link 53 connected to a motor 52, and a link
A link 54 is connected to an end of the motor 53 and a rod 55 for pushing the door 21 in the opening direction by forward rotation of the motor 52. When the motor 52 is driven to rotate forward by a command from the controller 10, the rod 55 moves so as to push the door 21 in the opening direction against the door closing urging force of the door closer 51. When the rod 55 moves in the opening direction, the operation of the links 53 and 54 causes the door 21 to open at a certain angle. Then, after this state is maintained for a predetermined time, the motor 52 is driven in reverse rotation by a command from the controller 10, and the rod 55 moves backward,
The door 21 is closed by the door closing force of the door closer 51. 7 and 8 as the actuator 17.
As shown in the figure, a link 56 fixed to the ceiling, a door closer 57 fixed to the door 21, a link 58 fixed to the door closer 57, and a link connected to the ends of the links 58 and 56
59 and a cam 60 provided on the door closer 57. The pin 61 of the cam 60 is a door closer.
It is connected to the rotating shaft of the motor housed in 57. When the motor is driven to rotate forward, the cam 60 is driven in the direction of the arrow X to urge the connecting portion between the link 58 and the link 59. As a result, the connecting portion moves in the Y direction, and a pushing force in the direction of the arrow Z acts on the end of the link 58, so that the door 21 opens at a certain angle. When this state is maintained for a certain period of time, when the motor is driven in the reverse direction, the cam 60 rotates in the reverse direction, and the door 21 is closed by the door closing urging force of the door closer 57. This embodiment has the above configuration, and its operation will now be described with reference to the flowchart shown in FIG.

First, when the controller 10 is initialized by the start, the timer is not operating, and the controller 10 proceeds to step S24.
Then, it is determined that the timer has ended, and from this, n = 1 is written, and the output of the receiver 11 is monitored. During this monitoring, it is determined whether a signal from the portable transmission key 20 has been received (step S1). When the signal is received, the output of the door state detection sensor 14 is captured (step S2),
It is determined whether or not the door 21 is closed (step S
3) When the door is open, the process returns to step S1, and when the door is closed, it is determined whether or not the key code signal of the received signal matches the proper key code unique to the door lock. Perform (Step S4).

When this condition is not satisfied, the processing is executed according to the flowchart shown in FIG. 10, and steps S1 to S4, S2
5. The signal processing by S26 is performed n times. That is, when the code is not a regular code, n = n in step S25.
It is confirmed whether or not it is 1, and if n = 1, the timer is operated. Then, the speaker 19 outputs a “wrong” sound via the audio device 18. After repeating this process twice, when n = 3, it is determined in step S26, and the sound of "thief" is output from the speaker 19 via the sound device 18. When this process is repeated n times, the timer time ends and this process ends. When the timer expires,
Return “n” to “1” and return to step S1 to set the receiver
The output of 11 is monitored.

When the condition of step S4 is satisfied, the output of the lock bolt position sensor 12 is captured (step S5), and it is determined whether or not the lock bolt 22 is in the locked state (step S5).
6). When this condition is satisfied, a command is given to the actuator 15, and the lock bolt 22 is moved backward to the unlock position (step S7). Thereafter, the output of the lock bolt position sensor 12 is captured (step S8), and it is determined whether the lock bolt 22 is at the unlock position (step S9). When this condition is not satisfied, the process returns to step S7, and when this condition is satisfied, a sound of "go home" is output from the speaker 19 via the audio device 18 (step S10).

Thereafter, a command to turn on the entrance light is output (step S11), a door open command is output to the actuator 16, and the solenoid 46 is excited to move the latch 26 to the release position (step S12). Subsequently, the output of the latch state sensor 13 is captured (step S13), and it is determined whether the latch 26 is in the unlatched state (step S14).
If the condition is not satisfied, the process returns to step S12.
A door opening command is output to 17 and the door 21 is opened at a predetermined angle by forward rotation of the motor 25 (step S15).

The output of the door state sensor 14 is captured (step S1
6) It is determined whether the door 21 has been opened by a certain angle (step S17). When the condition is not satisfied, the process returns to the step S15, and when the condition is satisfied, the timer built in the controller 10 is operated (step S18).

After the timer is activated, it is determined whether or not the timer has been activated for a predetermined time (step S19). When the timer has been activated for a predetermined time, a command for reversely driving the motor 52 is given, and the solenoid 46 is de-energized. The door 21 is closed by the door closing urging force of the door closer 51, and the latch 26 is brought into the latched state (step S20). Thereafter, the process returns to step S1.

On the other hand, when the condition is not satisfied in step S6, that is, when the lock bolt 22 is at the unlock position, a command for reversely driving the motor 30 is output, and the lock bolt 22 is moved to the lock position (step S21).
Then, the output of the lock bolt position sensor 12 is fetched (step S22), and it is determined whether or not the lock bolt 22 is at the lock position (step S23).

If this condition is not satisfied, the process returns to the step S21 again, and if this condition is satisfied, the voice of "Go" is output from the speaker 19 via the audio device 18, and the process returns to the step S1 again.

As described above, according to the automatic door opening and closing apparatus of the present invention, when a remote control signal is transmitted from outside the door, the door is locked and unlocked by the door lock mechanism, and when the lock is unlocked, With this unlocking, the latch of the latch mechanism is released, and the door is opened by the door driving means, so that the door can be automatically opened in response to a remote operation.

Further, since the door is opened for a predetermined time and then closed by the door closer, the door automatic opening / closing device is extremely convenient without any trouble such as being kept open or fluttering by the wind.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a simplified diagram showing each sensor and each actuator, FIG.
FIG. 4 is an exploded perspective view of an actuator as lock bolt driving means, FIG. 4 is an assembled perspective view of the actuator, FIG. 5 is a plan view showing an actuator as door driving means, FIG. FIG. 7 is a plan view showing another actuator 1 as door driving means,
FIG. 8 is a perspective view of the actuator, FIG. 9 is a flowchart for explaining the operation of the automatic door opening and closing apparatus shown as one embodiment, and FIG. 10 is a partial view of a flowchart combined with the flowchart. 10… Controller 11… Receiver 12… Lock bolt position sensor 13… Latch status sensor 14… Door status sensor 15, 16, 17 …… Actuator 18… Sound device 19 …… Speaker 20 …… Portable Transmit key 21 Door 22 Lock bolt 26 Latch

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-130689 (JP, A) JP-A-63-233185 (JP, A) JP-A 1-79779 (JP, U) JP-A 51-130 47797 (JP, U) Actually open 58-58, 2019 (JP, U)

Claims (2)

(57) [Claims] 1. An opening / closing door having a door lock mechanism remotely controlled from outside the door and a latch mechanism for holding the door closed and having a door closer for applying a closing force to the door. Latch release means for releasing the latch of the latch mechanism upon unlocking, and opening and holding the door from the closed state against the urging force of the door closer in response to the unlocking and release of the lock for a predetermined time. An automatic door opening and closing device comprising a door driving means. 2. A door state sensor for detecting an open / closed state of a door, a lock bolt position sensor for detecting a lock bolt position of a door lock mechanism, a latch state sensor for detecting a state of a latch mechanism, and a key unique to the door lock. When a code signal is received as a remote control signal, it is detected that the door is closed by the door state sensor, the lock bolt is in the lock position by the lock bolt position sensor, and the latch mechanism is in the latched state by the latch state sensor. Command means for outputting a door open command on condition that the door is open, lock bolt driving means for driving the lock bolt backward from the lock position to the unlock position by the door open command, and releasing the latch mechanism from the latched state by the door open command Latch release means for releasing the lock to the state and lock bolt position sensor The door is opened against the door closing urging force of the door closer on condition that the latch mechanism is detected to be in the unlocked position by the latch state sensor at the unlock position, and this state is maintained for a predetermined time. An automatic door opening / closing device comprising a door driving means.