JP4449033B2 - Automatic door device - Google Patents

Description

  The present invention relates to an automatic door device installed in a public toilet such as a hospital or a station building, or a toilet in a facility such as a shopping center, and more particularly, an automatic door device installed in a toilet dedicated to the disabled or accessible to anyone. About.

Conventionally, this type of automatic door device includes a door arranged at the front of a toilet, an outer operation unit provided outside the toilet, an inner operation unit provided inside the toilet, and the inner / outer operation. Drive means for opening and closing the door via a controller based on an open signal and a close signal from the unit, and a lock mechanism (electric lock) that restricts the opening operation when the door is fully closed.
The outer operation section has an outer opening switch and an outer closing switch. When the outer opening switch is operated, the door is opened by the opening signal, and when the outer closing switch is operated, the door is closed by the closing signal. Similarly, the inner operation section has an inner opening switch and an inner closing switch, and is set so that the door is opened by the operation of the inner opening switch and the door is closed by the operation of the inner closing switch.
The locking mechanism automatically locks the door when the door is closed by operating an inner closing switch, and is automatically unlocked when the door is opened by operating an inner opening switch. is there.

When the above-described conventional door device is exited before the door is fully closed due to an erroneous operation or mischief, when the user exits the toilet, the door closes and is locked, so the interior of the toilet is unattended. There was a problem that the toilet was closed in a state and the toilet became unusable for a long time.
In order to solve the above problem, as shown in Patent Document 1, when an indoor sensor for detecting the absence / presence of a person is provided in the toilet, and the sensor detects the absence of a person in the toilet, It has been proposed to unlock the lock mechanism.
Further, in Patent Document 1, as one means of safety measures, an auxiliary light sensor is provided at the front of the toilet, and it is detected by the sensor that the user passes through the front and the door is detected by the detection signal. It is also disclosed that the door is prevented from being temporarily closed so as to be caught between doors.

However, in the conventional apparatus described in Patent Document 1, it is necessary to newly install an indoor sensor for detecting the absence / presence of a person in the toilet, and in order to detect the inside of the toilet uniformly, Since performance accuracy is required, not only the cost of the apparatus is increased, but there is a problem that causes trouble due to malfunction of the indoor sensor.
In addition, when entering the toilet by operating the outside opening switch, if you enter the room by pushing the outside closing switch due to an incorrect operation, the outside opening switch is effective even after closing because the door is in the initial state, Therefore, there is a problem that the door opens when another user tries to enter the room and operates the outside opening switch.
Further, since an electric lock (lock mechanism) is used in addition to the detection sensor, there is a problem that the number of members increases and the cost of the apparatus is further increased.

JP 7-293110 A

  In order to solve the conventional problems in view of the above circumstances, the present invention prevents the user from closing the inside of the toilet due to an erroneous operation or mischief without using an indoor sensor that detects the absence / presence of a person. The purpose is to provide a toilet that can be used safely and effectively by the user by preventing the automatic door from malfunctioning. Moreover, the automatic door apparatus for toilets is provided at low cost by suppressing the cost increase of the apparatus.

Such an automatic door device according to the present invention includes a door disposed at the front of a toilet, an outer operation unit provided outside the toilet, an inner operation unit provided inside the toilet, An automatic door device comprising: a drive unit that opens and closes a door through a controller based on an open signal and a close signal from an operation unit; and an auxiliary light sensor provided at an opening of the toilet. When the door is closed based on the closing signal from the inner operation section in the opened or opened state, the door is opened when the signal from the auxiliary light sensor is received between the closing movement and the full closing. When the door is manually opened from the fully closed state, the controller rotates the motor of the driving means in the closing direction so that the door is closed. Powerfully energizing motor And it is characterized in that it comprises a moving part (claim 1).
The state in which the door is opened or opened refers to a state in which the door is being opened or fully opened. In an automatic door device whose initial state is the door fully closed system, the user enters the toilet. For example, when the door is opened by an open signal transmitted from the outer operation unit such as pressing the outer opening switch , or by an open signal transmitted from the inner operation unit such as pressing the inner open switch so that the user can exit the toilet. This is when opening the door.
Furthermore, in the automatic door device in which the initial state is the door fully open system, the case where the user enters the toilet without operating the outer operation unit is included.

  According to the present invention, in any of the above cases, when the door is open, when the user exits the toilet by operating the inner operation unit such as pressing the inner close switch by mistake or mischief, the door is temporarily closed. However, the door is reversed and fully opened in response to the signal from the sensor when the user passes through the front of the toilet.

Then, the door that is reversed and fully opened by the detection of the auxiliary light sensor returns to the initial state when the door is fully opened in the automatic door device whose initial state is the door fully opened system.
On the other hand, when the initial state is the door fully closed system, it is necessary to close the door. Therefore, the controller closes the door that has been fully opened after the forgetting to close timer has elapsed for a predetermined time. To do.

The automatic door device according to the present invention is the automatic door device having the same main structure as that of the first aspect, wherein the controller opens or opens the door in response to an open signal from the outer operation unit. When the door is closed based on the closing signal, when the signal from the auxiliary light sensor is received between the closing movement and the full closing, the door is reversed and fully opened, and the fully opened state is maintained. In addition, the controller includes a motor drive unit that, when the door is manually opened from the fully closed state, rotates the motor of the drive means in the closing direction to strongly bias the door in the closing direction. characterized in that there (claim 2).
That is, the present invention is a mode in which the user opens the door by an open signal transmitted from the outer operation unit such as pressing an open switch to enter the toilet, and the user closes the door by mistake. This corresponds to a case where the user enters the room after operating the outer operation unit such as pressing a switch.
In this case, the user who enters the room is detected by the auxiliary light sensor when passing through the front of the toilet, so that the door is reversed and fully opened in response to the signal from the sensor. Since the toilet user is forced to close the door by opening the door, an operation such as pressing the inner closing switch of the inner operation section is performed, thereby ensuring the toilet in use. .

According to the present invention, as described above, even if the user makes a mistake or mischief when leaving the toilet, the door is temporarily opened by the detection operation of the auxiliary light sensor. It is possible to prevent the toilet from being closed.
Therefore, since the conventional auxiliary light sensor is used instead of the indoor sensor that detects the absence / presence of a person, the equipment cost is reduced and the possibility of trouble due to malfunction of the indoor sensor is eliminated. In addition, the toilet can be used effectively (claim 1) .

According to the combined use with the forgetting to close timer, the door once fully opened due to an erroneous operation or mischief is closed by the forgetting closing timer, so that it can be applied to an automatic door device whose initial state is the door fully closing method.
Further, according to claim 2 , even if the user enters the toilet into the toilet, the door closing operation is guided to the user in the toilet, so that the door is opened during use of the toilet. Trouble can be solved.

Furthermore, in either of the first and second aspects, the electric lock, which has been conventionally required as a lock mechanism, can be made unnecessary, so that an increase in the cost of the device can be further suppressed and the automatic door device for toilets can be provided at low cost. .

An embodiment of the automatic door device of the present invention will be described with reference to the drawings. Since this type of automatic door device for toilets is generally popular, an example thereof will be described with reference to FIGS. 1 and 2.
The toilet 1 has a sliding door-type door 2 that can be freely opened and closed in the front door 1a, and a controller 3 and a driving means 4 are provided inside the door, and a push-button type outside opening switch 5a and an outside are provided outside the room. An outer operation unit 5 including a closing switch 5b and an in-use lamp 5c is attached, and an inner operation unit 6 including a push button type inner opening switch 6a and an inner closing switch 6b is attached to the indoor side. Further, an auxiliary light sensor 7 including a light projecting unit 7a and a light receiving unit 7b constituting a photoelectric sensor is attached to the front door 1a of the toilet 1 as one means of safety measures.
A toilet 1b and a wash basin 1c are installed in the toilet 1, and further, although not shown, a room lamp, a ventilation fan, and the like are appropriately provided.

The automatic door device opens / closes the door 2 by controlling the driving means 4 by the controller 3 when an open signal or a close signal is transmitted by the operation of the outer operation unit 5 or the inner operation unit 6. I am doing so.
Specifically, the controller 3 includes a control unit 3 a that controls the operation of the entire apparatus, and includes a motor drive unit 3 b that is a motor drive circuit of the drive unit 4, and the control unit 3 a from the outer operation unit 5 or the inner operation unit 6. When receiving an open signal or a close signal, the drive means 4 is started and stopped via the motor drive section 3b.
The controller 3 further includes a forgetting to close timer 3c, a long time timer 3d, and the like. When the opened door 2 is left for a relatively short time (for example, 30 seconds) by the forgetting to close timer 3c, the controller 3a The door 2 is closed by sending a close signal to the motor drive unit 3b, and the door 2 remains closed by the operation of the inner close switch 6b by the long-time timer 3d (the inside of the toilet 1 is in use). When the operation is continued for a long time (for example, 20 to 30 minutes), the control unit 3a transmits an open signal to open the door 2.

  In addition, the in-use lamp may be provided in the inner operation unit 6, and the outer opening switch 5 a of the outer operation unit 5 may be omitted in an aspect in which the initial state is the fully open method.

The motor drive unit 3b of the controller 3 controls the operation of the drive means 4 that opens and closes the door 2 based on a command from the control unit 3a. In the present invention, the door 2 is particularly fully closed. When a manual opening operation is performed from the state, a strong closing return function is added to rotate the motor of the driving means 4 in the closing direction to strongly bias the door 2 in the closing direction.
The function will be described with reference to the flowchart of FIG. 3. In the fully closed state of the door 2, a slight closing side rotational force is applied to the motor of the driving means 4 in order to eliminate the gap between the door 2 and the abutting surface. (Secondary push) When the manual opening operation is performed, the opening rotation of the motor is measured with a pulse counter, and the door 2 is detected with a small amount (for example, about 10 mm; count 2 or more). To do. The control unit 3a receives the detection signal of the counter, applies a voltage to the motor via the motor driving unit 3b, and manually pushes the door 2 in a closing direction so as to prevent the door 2 from further opening, thereby causing a strong pushing operation.

Thereby, it is possible to recognize that the door 2 cannot be opened. Then, when the manual opening is stopped and the hand 2 is released, the strong pushing operation stops immediately or after a predetermined time set by a timer, and the door 2 closes at a low speed (primary pushing) and all the above operations are performed. Return to the closed state (secondary push).
The set time of the timer is a time necessary for recognizing that the door 2 cannot be opened, for example, a time selected from 10 seconds to 20 seconds, and further 1 minute to 2 minutes to prevent mischief. It is also possible to set a time selected from the above, and to set the time variably.
The door 2 can be opened by a manual opening operation immediately after the set time of the timer elapses and the strong pushing operation is stopped. 2 then performs a closing operation (primary push) to return to the fully closed state.

In the present invention, the auxiliary light sensor 7 detects that the light P traveling from the light projecting unit 7a to the light receiving unit 7b is blocked by the human body, and the detection signal causes the door 2 to close. In addition to the function of the original safety sensor that temporarily restricts, in a predetermined case, as described below, the activation signal is used to reverse the door 2 that has entered the closing operation.
That is, the control unit 3a of the controller 3 causes the door 2 to perform a normal opening / closing operation via the motor driving unit 3b and the driving unit 4 when the outer operation unit 5 or the inner operation unit 6 is normally operated. When the toilet user performs an erroneous operation or mischief operation, the door 2 is reversed and fully opened in response to a detection signal from the auxiliary light sensor 7.

Specifically, this is the case.
(1) Push the outer opening switch 5a to open the door 2 to enter the toilet 1 and press the inner closing switch 6b to use the toilet with the door 2 closed, and then press the inner opening switch 6a. When exiting by pressing the close switch 6b.
(2) When the user opens the door 2 by pressing the outer opening switch 5a to enter the toilet 1 and then exits immediately after pressing the inner closing switch 6b.
These (1) and (2) are operations that can occur when the initial state is the door fully closed system.
(3) Enter the toilet 1 with the door fully open, press the inner close switch 6b and use the toilet with the door 2 closed, then press the inner open switch 6a and then press the inner close switch 6b to exit. If you want to.
(4) Entering the toilet 1 with the door fully open, and then pressing the inner closing switch 6b to exit.
These (3) and (4) are operations that can occur when the initial state is the door fully open system.
In any of the cases (1) to (4), when the user leaves, the light beam P of the auxiliary light sensor 7 is blocked and the user's exit is detected. Opens the door 2 fully.

(5) When the outside opening switch 5a is pushed to open the door 2 and then the outside closing switch 5b is pushed to enter the toilet 1. This is an operation that can occur when the initial state is the door fully closed system.
(6) When entering the toilet 1 by pressing the outer closing switch 5b with the door fully open. Usually, this is an operation that can occur when the initial state is the door fully open system.
In any of the above cases (5) and (6), when the user enters the toilet 1, the light P of the auxiliary light sensor 7 is blocked and the user's entry is detected. In response, the control unit 3a keeps the door 2 fully open, that is, not closed.

Thus, the opening / closing operation of the automatic door device will be described with reference to FIGS. 4 to 6 in the case where the initial state is the fully closed system. First, the normal operation is as follows.
As shown in FIG. 4, in the initial state, when the user presses the outer opening switch 5a, the door 2 is opened by the driving means 4 (ST1, ST2). Although the forgetting to close timer 3c is started by opening the door 2 (ST3), the light P of the auxiliary light sensor 7 is blocked when the user enters the toilet 1 (ST4). Is temporarily stopped and reset to the set value (ST5), the process returns to ST3 via the detection operation (ST5a) of the auxiliary light sensor 7, and the forgetting to close timer 3c is restarted.

When the user who has entered the toilet 1 presses the inner close switch 6b (ST6), the forgetting to close timer 3c stops (ST7), the in-use lamp 5c of the outer operation section 5 is lit (ST8), and is opened outward. The switch 5a is disabled (ST9), the long-time timer 3d is started (ST10), and the door 2 is closed (ST11). This state is a use state in which the in-use lamp 5c is lit and it is confirmed from the outside that the toilet is in use, and the door opening from the outside is prohibited by the invalidation of the outside opening switch 5a.
When the door 2 is opened (ST2) and the user is left without entering the room, the auxiliary light sensor 7 does not detect the entry (ST4), and the inner close switch 6b is also operated in ST6. Therefore, when the set time of the forgetting to close timer 3c elapses (ST13), after the buzzer sounds for a predetermined time (for example, 5 seconds), the door 2 closes and ends, that is, returns to the initial state (ST13 and ST14). ).

As shown in FIG. 5, when the user leaves the toilet 1, pressing the inner opening switch 6 a (ST 21) opens the door 2 (ST 22) and turns off the in-use lamp 5 c (ST 23). The outer opening switch 5a is effectively restored (ST24), the timer is stopped for a long time (ST25), and the forgetting to close timer 3c is started (ST26).
Then, since the auxiliary light sensor 7 detects it when the user leaves (ST27), the forgetting to close timer 3c is temporarily stopped and reset to the set value (ST28), and then the auxiliary light sensor 7 detects it. Returning to ST26 via the operation (ST28a), the forgetting to close timer 3c is restarted.
Thereafter, when the user who has exited presses the outer closing switch 5b (ST29), the door 2 is closed (ST30) and the forgetting to close timer 3c is stopped (ST31) to end.

  When the user who has left the toilet 1 does not press the outer closing switch 5b in ST29, when the set time of the forgetting closing timer 3c has elapsed (ST32), the door 2 is closed after the buzzer sounds for a predetermined time. The process ends (ST33 and ST34).

Further, when a long time elapses for some reason while the user is in the toilet 1, when the set time of the long time timer 3d elapses (ST35), as shown in FIG. The in-use lamp 5c of the unit 5 blinks to notify the abnormality in the toilet 1 to the outside (ST36), and the outer opening switch 5a is effectively returned (ST37).
When the predetermined time (for example, 55 seconds) elapses (ST38), after the buzzer sounds for a predetermined time (ST39), the in-use lamp 5c is turned off (ST40) and the door 2 is opened (ST41). In ST36 and ST37, if the outer opening switch 5a or the inner opening switch 6a is operated (ST42 or ST43), the in-use lamp 5c is extinguished (ST40) and the door 2 is opened (ST41). .

In the door open state in ST41, since the forgetting to close timer 3c remains stopped, the open state of the door 2 is maintained (ST44).
When the outer closing switch 5b is pushed in that state (ST45), the door 2 is closed and returns to the initial state (ST46), and when the inner closing switch 6b is pushed (ST47), When the door 2 is closed (ST48), the in-use lamp 5c is lit (ST49), the outside switch 5a is disabled (ST50), the timer 3d is started for a long time (ST51), and the toilet 1 is in use. It becomes.

Next, an opening / closing operation in the case of a user's erroneous operation or mischief will be described.
In the first mode, in FIG. 5, after using the toilet, the inner opening switch 6a is pushed and the door 2 is opened (ST21 to ST26), and the inner closing switch 6b is further pushed to exit the toilet 1 (ST100). ), That is, the case of (1) described above.
In this case, the forgetting to close timer 3c is stopped (ST101), the in-use lamp 5c is lit (ST102), the outside open switch 5a is disabled (ST103), the long-time timer 3d is started (ST104), and the door 2 starts closing (ST105), but since the user's exit is detected by the auxiliary light sensor 7 before the door 2 is completely closed (ST106), the door 2 is reversed and fully opened (ST107), Return to the state after ST22. In other words, it returns to the state (ST21, ST22) in which the inner opening switch 6a is pressed.

As a result, as described above, the in-use lamp 5c is extinguished (ST23), the outer opening switch 5a is effectively restored (ST24), the long-time timer is stopped (ST25), and the forgetting to close timer 3c is started ( ST26) When the set time of the timer 3c has elapsed (ST32), the door 2 is closed via ST33 (ST34), and the process returns to the initial state and ends.
Accordingly, it is possible to prevent the use of the toilet in which the open switch 5a is disabled while the user is not present in the toilet 1, that is, the closed state in the toilet.

In FIG. 4, the second mode is as shown in FIG. 4, pressing the outer opening switch 5 a to open the door 2 to enter the toilet 1 (ST 1 to ST 5), and pressing the inner closing switch 6 b without using the toilet (ST 6). The case of leaving immediately after that, that is, the case of (2) described above.
In this case, the door 2 starts to close (ST11), but since the user's exit is detected by the auxiliary light sensor 7 before the door 2 is completely closed (ST110), the door 2 is reversed. While fully open (ST111), the timer 3d is stopped for a long time (ST112), the in-use lamp 5c is turned off (ST113), and the process returns to the state after ST2. In other words, the state returns to the state (ST1, ST2) in which the outer opening switch 5a is pressed.

As a result, the forgetting to close timer 3c is started (ST3), and when the set time of the timer 3c has elapsed (ST12), the door 2 is closed via ST13 (ST14), but not through ST8 to ST10. The in-use lamp 5c is not lit, the outer opening switch 5a remains valid, and the timer 3d is returned to the initial state where the timer 3d has not been started for a long time.
Therefore, also in this case, the occurrence of a closed state in the toilet can be prevented.

The third mode is shown in FIG. 4 when the door 2 is opened (ST1 to ST4) with the outer opening switch 5a pushed and the outer closing switch 5b is pushed to enter the toilet 1 (ST120). This is the case of (5).
In this case, the forgetting to close timer 3c is temporarily stopped (ST121) and the door 2 starts to close (ST122). However, before the door 2 is completely closed, the user's entry is detected by the auxiliary light sensor 7. Therefore (ST123), the door 2 is reversed and fully opened (ST124), and returns to the state after ST2.

  Therefore, when the user enters the toilet 1, the door 2 is in an open state without closing, so the user inevitably presses the inner closing switch 6 b to close the door 2, and the inner closing switch 6 b By pressing (ST6), the toilet is set to the use state through ST7 to ST11 described above. As a result, the in-use lamp 5c of the outer operation unit 5 is lit and the outer opening switch 5a is held invalid, so that the trouble that the door 2 is opened by the operation of the outer opening switch 5a can be prevented.

  And the automatic door device is not equipped with an electric lock that locks the fully closed state of the door 2, but in the fully closed state in any of the initial state, normal operation, erroneous operation or mischief operation. Can be kept in the fully closed state without opening the door 2 by a manual opening operation by the strong closing return function provided in the controller 3.

In the above-described embodiment, the automatic door device whose initial state is the fully closed system has been described. However, in the case of the fully open system, the initial state is set to the fully open state and the operation setting that does not use the forgetting to close timer 3c is used. Can also be applied, and can also be applied to the cases (3), (4), and (6) described above.
In addition, room lights and ventilation fans that are not shown in the figure are turned on / off or turned off / stop in conjunction with the opening / closing operation of the outer operation unit 5 or the inner operation unit 6, or the user can use individual switches to Any configuration may be used such as lighting / operation or extinguishing / stopping at appropriate times, or lighting / operation at all times.
Further, the outer operation unit 5 and the inner operation unit 6 have been described with respect to the push button type switch. The unit 5 includes a sensor such as an infrared ray for detecting that the user has stood in front of the door 2 or a mat switch.

It is a general | schematic top view of the toilet provided with the automatic door apparatus of this invention. It is a block diagram which shows the principal part of the automatic door apparatus of this invention. 6 is a flowchart for explaining a strong close return function added to the controller of the present invention. It is a flowchart explaining operation | movement of this invention. It is a flowchart explaining other operation | movement of this invention. It is a flowchart which shows the branch part of FIG.

Explanation of symbols

1: Toilet 1a: Frontage 2: Door 3: Controller 3a: Control unit 3b: Motor drive unit 3c: Forgetting to close timer 3d: Long time timer 4: Driving means 5: Outer operation unit 6: Inner operation unit 7: Auxiliary light Sensor

Claims (2)

A door disposed at the front of the toilet, an outer operation unit provided outside the toilet, an inner operation unit provided inside the toilet, and an open signal and a close signal from the inner / outer operation unit In the automatic door device comprising a driving means for opening and closing the door based on the controller and an auxiliary light sensor provided at the front of the toilet, the controller operates inwardly with the door opened or opened. When the door closes based on the closing signal from the unit, when the auxiliary light sensor signal is received between the closing and full closing, the door is reversed and fully opened, and the fully open state is Furthermore, the controller includes a motor drive unit that, when the door is manually opened from the fully closed state, rotates the motor of the driving means in a closing direction to strongly bias the door in the closing direction. characterized in that it comprises Automatic door apparatus for. A door disposed at the front of the toilet, an outer operation unit provided outside the toilet, an inner operation unit provided inside the toilet, and an open signal and a close signal from the inner / outer operation unit In the automatic door device having a driving means for opening and closing the door based on the controller and an auxiliary light sensor provided at the front of the toilet, the controller is operated by an open signal from the outer operation unit. When the door is closed based on the closing signal from the outside operation part in the open or open state, the door is reversed when the signal from the auxiliary light sensor is received between the closing and full closing. The controller is fully opened, and the fully opened state is maintained. Further, when the door is manually opened from the fully closed state, the controller rotates the drive means motor in the closing direction to force the door in the closing direction. To urge Automatic door apparatus characterized in that it comprises a motor drive unit.

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