JP7320876B2 - Automatic doors and protection sensors for automatic doors - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door with improved safety in use, and an automatic door protection sensor with improved safety in use of an automatic door.

In 2017, Japanese Industrial Standard JIS-A4722 (automatic door sets for pedestrians - safety) was enacted. This standard was created in consideration of the hazards peculiar to automatic doors, and stipulates the requirements and test methods to ensure safety during use of automatic doors. There are usually multiple options for each requirement, but in the case of sliding doors and hinged doors, the most typical example is that the movement area of the door and its vicinity block or reflect light, radio waves, etc., or other principles. provided that it is monitored by an electrically sensitive protective device whose detection function is activated by Also, when a rectangular parallelepiped box called a reference body, each surface of which has a predetermined size and a predetermined diffuse reflectance, is placed in a predetermined area on the floor surface near the door movement area, the protective device It is stipulated that it must be confirmed that the A conceivable method is to incorporate an LED or the like that emits light when the protection device detects it into the controller that controls the opening and closing of the automatic door or the main body of the protection device, and use it to confirm the detection. However, since both the controller and the protective device are generally installed at a position higher than the upper surface of the door, while moving and positioning the reference body within a predetermined range on the floor surface, the controller and the protective device above the door Look up at the small LED to see if the protective device is detected. Such work is very time-consuming and places a heavy burden on the body of automatic door installers and inspectors.

Also, after resetting the protective device, check the function of all the protective devices, start the operation of the automatic door only when the safety function is working properly, and move the end of the door at least every cycle. A functional check of all protective devices shall be performed in either the position or the parked position, and the automatic door shall continue to operate only when the safety functions are working properly. These conditions are newly added in the JIS standard, but the movement of the door when the safety function of the automatic door compliant with the JIS standard is working correctly and the conventional door not compliant with the JIS standard. Since there is no difference from the movement of the automatic door of the above, for the automatic door builder and manager, it is possible to determine whether the safety function corresponding to the above JIS standard is working correctly just by looking at the movement of the door. There is a problem that it is not possible to It is conceivable to check the safety functions of all protective devices and have an LED, etc. built into the controller that emits light when there is no problem, and confirm that the safety functions are working properly. Since the is covered with a lid and cannot be seen, the situations in which it can be used are limited.

Japanese Industrial Standard JIS-A4722 (Automatic Door Set for Pedestrians - Safety)

In the conventional automatic door, the automatic door builder or inspector can easily confirm that the movement area of the door and the predetermined area in the vicinity thereof are reliably monitored by the electrical detection and protection device. I didn't. In addition, even if an automatic door that starts or continues operation of an automatic door is realized only when the function of the electrical detection protection device is checked and the safety function is working properly, the safety function does not work properly during actual operation. It was not possible for automatic door builders, inspectors, administrators, etc. to easily confirm that the automatic door is working reliably.

In order to solve the above problems, the present invention has at least the following configurations.
A door that rotates around a hinge, a driving unit that drives the door, and an operation mode, at least in the operation mode, a controller that controls the driving of the door by the driving unit, and a passage through the door. An automatic door comprising: an activation sensor that detects a passerby and sends an activation signal to the controller; and a protection sensor attached near the hinge portion on each of the upper surface and the back surface of the door, wherein the protection sensor has a door detection surface for detecting an object such as a person near the door on the side of the door on which each is attached, and a hinge detection surface for detecting an object such as a person's fingers near the hinge. The protective sensor further has a self-diagnostic function for self-diagnosing whether the protective sensor is functioning normally, and if the result of the self-diagnosis is normal, it transmits a predetermined signal to the controller, In the operation mode, the controller requests self-diagnosis from the protection sensor before starting to drive the door, and drives the door when the self-diagnosis result received from the protection sensor is normal. If there is an abnormality, the controller stops driving the door, and the controller detects that the protection sensor attached to the surface of the door in the direction of travel is in the vicinity of the door while the door is rotating. The automatic door is characterized in that when an object or an object in the vicinity of the hinge portion is detected, the door is stopped, reversed, or switched to a low-speed operation for protection.
In addition, the present invention also includes the following configurations.
A first means of the present invention comprises a door, a driving unit for driving the door, a controller for controlling the driving of the door at least in the operation mode, and a controller for controlling the driving of the door in a predetermined area around the door. and a sound generating unit, wherein the controller causes the sound generating unit to generate a predetermined sound according to the state of the protective sensor. It's an automatic door.

According to the automatic door of the first means, the state of the protective sensor for detecting and protecting the moving area of the automatic door and the people in the vicinity thereof can be easily known just by hearing the sound from the sound generating part. Therefore, the safety of the automatic door can be enhanced.

The second means further has a protection sensor setting mode in addition to the first means, and in the protection sensor setting mode, the controller controls the sound generation unit This is an automatic door characterized by changing the sound generated from.
In addition, in the protection sensor setting mode, the controller causes the sound generation unit to generate a sound while the protection sensor is being detected, and the sound is produced while the protection sensor is not being detected. An automatic door characterized by stopping the generation.

According to the automatic door of the second means, in the protection sensor setting mode, the sound generated from the sound generating section changes depending on whether the protection sensor is being detected or not. Therefore, automatic door installers and inspectors can detect the automatic door protection sensor without looking up or down just by listening to the sound generated from the sound generating part while changing the position of the reference body placed on the floor. Areas can be easily identified.
Further, according to the automatic door of the third means, sound is generated during detection of the protection sensor, and no sound is generated during non-detection. Therefore, the detection area of the protection sensor can be confirmed more easily.

A fourth means, in contrast to the second or third means, further comprises an activation sensor that detects a passerby passing through the door and sends an activation signal to the controller, and in the protection sensor setting mode, the controller is an automatic door characterized in that the sound generating section generates a sound different from the sound generated by the sound generating section during detection or non-detection of the protection sensor during detection of the activation sensor.
A fifth means, relative to the fourth means, is an automatic door characterized in that said activation sensor and at least one of said protection sensors are integrated sensors.

According to the automatic door of the fourth means, in the protection sensor setting mode, a sound different from the sound generated by the sound generation unit during detection of the protection sensor or non-detection of the protection sensor is generated by the sound generation unit during detection of the activation sensor. generated from Therefore, an automatic door builder or an inspector, for example, can detect the automatic door activation sensor by simply listening to the sound generated from the sound generating part while changing the position of the object to be detected placed on the floor, without moving the line of sight up or down. can be easily confirmed.
Further, according to the automatic door of the fifth means, the activation sensor and at least one of the protection sensors are integrated sensors. This makes it possible to reduce the cost and facilitates the work of attaching the sensor. In addition, different sounds are generated from the sound generating part during detection by the activation sensor and during detection by the protection sensor. While changing , the detection areas of the automatic door start sensor and protection sensor can be easily confirmed without looking up or down just by distinguishing the sound generated from the sound generating part.

A sixth means is the automatic door according to any one of the second to fifth means, wherein in the protection sensor setting mode, driving of the door is stopped.

According to the automatic door of the sixth means, the driving of the door is stopped in the protection sensor setting mode. Since the detection range of the protective sensor is often defined by the distance from the door, stopping the door makes it possible to easily and accurately confirm the detection area. In addition, when checking the detection area of the protection sensor, there is no fear that the automatic door builder or inspector will be hit or caught by the door, so that the detection area can be confirmed safely with peace of mind.

A seventh means is, in contrast to any one of the first to sixth means, in the operation mode, before the controller starts driving the door, the controller checks whether all the protection sensors are functioning normally. The sound generator generates different sounds depending on whether the operation is normal or abnormal, and starts driving the door when the operation is normal, and stops driving the door when the operation is abnormal. An automatic door characterized by
An eighth means, in contrast to the seventh means, is an automatic door characterized by generating a short-time sound from the sound generating section when the door is normal, and generating a long-time sound when there is an abnormality. .

According to the automatic door of the seventh means, in the operation mode, the controller checks the self-diagnostic results of all the protection sensors before starting to drive the door, and generates a sound depending on whether it is normal or abnormal. A different sound is generated from the part, and the drive of the door is started when it is normal, and the drive of the door is stopped when there is an abnormality. As a result, automatic door managers and inspectors can confirm whether there are any problems with the safety functions of the protective sensors simply by listening to the sound generated by the sound generator at the timing at which the door should start driving. .
Further, according to the automatic door of the eighth means, when all the protective sensors are normal, the sound generating section generates a sound for a short time, and when there is an abnormality, a sound is generated for a long time. As a result, when the protective sensor is normal, the sound is generated from the sound generating part only for a short period of time. can easily confirm that there is no problem with the safety function of the protection sensor by listening to the sound generated from the sound generating part. In addition, when there is an abnormality in the protection sensor, the sound generating section generates a sound for a long time, so that the administrator of the automatic door can quickly notice the abnormality.

A ninth means is, in contrast to any one of the first to eighth means, in the operation mode, the controller controls, during driving of the door, a predetermined area in the predetermined area in the advancing direction of the door. In the automatic door, when the protection sensor for detecting a person detects a person, the sound generating unit generates a sound and performs a protection operation.

According to the automatic door of the ninth means, in the operation mode, if the protection sensor detects a person within a predetermined area in the direction of travel of the door while the door is being driven, the door may collide with the person. Therefore, a sound is generated from the sound generating unit to warn the person near the door, and in order to protect the person, the door is suddenly stopped, the door is reversed, the door is switched to low speed operation, etc. The safety of people near the door can be ensured by performing the protective operation of . When a person approaches the door without noticing the opening/closing operation of the door, it is particularly effective to generate a warning sound to inform the person of the danger, and the safety of the automatic door can be further enhanced.

According to a tenth means, in any one of the first to ninth means, in the operation mode, the controller, after the power of the automatic door is turned on, completes the self-diagnosis of all of the protection sensors and detects the opening of the door. The automatic door is characterized in that the sound generating section generates a sound until preparation for driving is completed.

According to the automatic door of the tenth means, in the operation mode, the controller generates a sound from when the power of the automatic door is turned on until the self-diagnosis of all the protection sensors is completed and the door is ready to be driven. make a sound from the Even in the operation mode, when the power is turned on, self-diagnosis of the protection sensor takes longer than during normal operation, so it will not be possible to pass immediately. By notifying administrators and passers-by of this information, unnecessary confusion can be avoided.

In the eleventh means, in any one of the first to tenth means, in the operation mode, even when a problem unrelated to the protection sensor occurs in the automatic door, the controller controls the sound generation unit to An automatic door characterized by generating sound.
A twelfth means is the automatic door according to the eleventh means, wherein in the operation mode, the controller causes the sound generating section to generate a plurality of types of sounds according to the details of the malfunction. is.

According to the automatic door of the eleventh means, when a problem occurs in the automatic door in the operation mode, even if the cause is not related to the protection sensor, a sound is generated to inform the manager of the automatic door. . Therefore, compared to other methods, such as making the light-emitting part emit light, the sound from the sound-producing part can be heard only in the vicinity of the automatic door without the need for the administrator to voluntarily go to see the state of the light-emitting part. Since it sounds natural, it is possible to quickly notice the occurrence of a problem with an automatic door.
Further, according to the automatic door of the twelfth means, the administrator of the automatic door can easily grasp the details of the malfunction of the automatic door by simply listening to the sound generated from the sound generating unit without using a setting device or the like. Therefore, when requesting repair, for example, the details of the problem can be quickly and accurately communicated. In addition, compared to the method of notifying the details of a problem by emitting light from the light-emitting part, it is easier to identify the differences in many types of sound patterns when using sounds, so it is possible to identify the details of the problem to administrators, etc. can be comprehended separately.

A thirteenth means is an automatic door mounted on the controller or the protective sensor in the thirteenth means for any one of the first to twelfth means.

According to the automatic door of the thirteenth means, the sound generating section is mounted on the controller or the protection sensor, and no dedicated circuit board or wiring is required, so cost reduction is possible.

A fourteenth means, in contrast to any one of the first to thirteenth means, further comprises a light emitting section for emitting light, wherein the controller emits a predetermined sound from the sound generating section according to the state of the protection sensor. The automatic door is characterized in that the light is generated and predetermined light is emitted from the light emitting portion according to the state of the protection sensor.
A fifteenth means, in contrast to the fourteenth means, is the automatic door characterized in that the controller can be set to stop the sound generation from the sound generation section.
A sixteenth means, in contrast to the fourteenth or fifteenth means, is an automatic door characterized in that the light-emitting portion is mounted in the vicinity of a power switch of the automatic door or in the protection sensor.

According to the automatic door of the fourteenth means, the state of the automatic door protection sensor can be known not only from the sound generated from the sound generating section but also from the light emitted from the light emitting section. can be further increased.
Further, according to the automatic door of the fifteenth means, it is possible to set to stop the sound generation from the sound generating section, so that the sound generation can be stopped as necessary such as at night. For example, a sound may be generated in the protection sensor setting mode, and the sound generation may be stopped as necessary in the operating mode. Also, for example, after turning on the power of the automatic door in the operation mode, a sound is generated until the door is opened and closed several times to confirm that there is no abnormality in the safety function of the protection sensor. Sound generation may be stopped until the power is turned off. Even when the sound generation is stopped, the state of the protection sensor of the automatic door can be confirmed by the light emitted from the light emitting part.
Further, according to the automatic door of the sixteenth means, the light-emitting part is mounted in the vicinity of the power switch outside the horizontal frame of the automatic door or in the protective sensor. As a result, the light-emitting part can be seen from around the automatic door without opening the cover of the horizontal frame even in the operation mode, so the automatic door manager or inspector can easily check the state of the protection sensor. be able to.

A seventeenth means, in contrast to any one of the first to sixteenth means, is an automatic door characterized in that the automatic door is any one of a sliding door, hinged door, folding door, and revolving door.

According to the automatic door of the seventeenth means, the shape and movement of the automatic door differ depending on the type such as a sliding door, a swing door, a folding door, a revolving door, etc. The controller has the above protection sensor, and the controller generates a predetermined sound from the sound generating section according to the state of the protection sensor. Therefore, just by listening to the sound generated from the sound generating part, the builder or inspector can easily know the state of the automatic door protection sensor regardless of the type of automatic door, so the safety of the automatic door is improved. be able to.

In order to solve the above problems, an eighteenth means is an automatic door protection sensor that has an operation mode and a setting mode and detects a person in a predetermined area around the door of the automatic door, comprising: and in the setting mode, the automatic door protection sensor generates a sound from the sound generating section in accordance with the detection status of the protection sensor.
A nineteenth means for the eighteenth means self-diagnoses whether or not the sensor is functioning normally when receiving a diagnosis start signal in the operation mode, and transmits a predetermined signal if at least normal. The automatic door protection sensor is characterized by:
A twentieth means is an automatic door protection sensor integrated with an activation sensor for detecting a passerby and transmitting an activation signal to the eighteenth or nineteenth means.

According to the automatic door protection sensor of the eighteenth means, in the setting mode, the detection status of the protection sensor can be easily known just by hearing the sound from the sound generating part of the protection sensor. can be easily verified.
According to the automatic door protection sensor of the nineteenth means, when a signal to start diagnosis is received from the controller of the automatic door in the operation mode, it automatically diagnoses that the sensor is functioning normally. Since the controller sends a predetermined signal to the controller, the automatic door controller can start opening and closing the automatic door only when it receives a predetermined signal indicating that the protection sensor is functioning normally. It is possible to realize a safe automatic door.
Further, according to the automatic door protection sensor of the twentieth means, since it is integrated with the start sensor for detecting a passerby and starting the opening operation of the automatic door, compared to the case where two sensors are attached respectively, Therefore, the cost is low and the installation work is easy.

The automatic door of the present invention has a sound generator, and generates a predetermined sound from the sound generator according to the state of the protection sensor. For example, in the protection sensor setting mode, if the sound is generated when the protection sensor is detected and not generated when the protection sensor is not detected, the automatic door builder or inspector can move the reference body on the floor. Only by confirming the sound from the sound generating part while moving and positioning the door, it is possible to easily confirm that the moving area of the door and a predetermined area in the vicinity thereof are reliably monitored by the protection sensor. Also, for example, in the operation mode, self-diagnosis of the protective sensor is always performed before driving the door, and only when the result is normal, the sound generating unit generates a short sound and starts opening and closing the door. The automatic door builder, inspector, manager, etc. can easily confirm that the safety function of the automatic door protection sensor is working reliably just by listening to the sound from the sound generator.
That is, according to the present invention, the state of the protection sensor, which is most important for the safety of the automatic door, can be notified to the automatic door builder, inspector, manager, etc. by means of the sound from the sound generating section. can increase the safety of

BRIEF DESCRIPTION OF THE DRAWINGS It is a general view which illustrates the outline|summary of the automatic door which concerns on embodiment of this invention. 1 is a block diagram illustrating an outline of an automatic door according to an embodiment of the invention; FIG. 8 is a flowchart and the like illustrating the operation in the protection sensor setting mode of the automatic door according to the embodiment of the present invention; 4 is a flowchart illustrating operations from power-on to completion of operation preparation in the operation mode of the automatic door according to the embodiment of the present invention; 4 is a flow chart illustrating an operation after operation preparation is completed in an operation mode of the automatic door according to the embodiment of the present invention; FIG. 4 is a diagram illustrating patterns of sounds generated from a sound generation unit in an operation mode of the automatic door according to the embodiment of the present invention; FIG. 11 is an overall view illustrating an outline of an automatic door according to a second embodiment of the invention; FIG. 5 is a block diagram illustrating an outline of an automatic door according to a second embodiment of the invention; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an automatic door according to the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1(a) is an overall view illustrating an outline of an automatic door 1 according to Embodiment 1 of the present invention. The automatic door 1 is a hinged double door in which a pair of left and right doors 2 rotate about hinges at both ends. Inside the horizontal frame 11 above the door 2 are a pair of driving units 3 for driving the door 2 to open and close via arms (not shown) and a pair of controllers for controlling the driving of the door 2 by the driving unit 3. 4 is installed. A pair of controllers 4 are connected by wires to control the opening/closing timing of a pair of doors 2 , but the pair of controllers 4 may be integrated into one controller 4 . A start sensor 5 for detecting a passerby is attached to the central portion of the lateral frame 11, and when the passerby is detected, the controller 4 opens the door 2 at an appropriate timing. It should be noted that the drive unit 3 of the door 2 is not limited to one via an arm or the like, and a method of directly rotating the rotating shaft of the door 2 may be used.

A protection sensor 6 is attached near the hinge portion on the upper portion of the door 2 . The protection sensor 6 is a sensor for detecting a person or the like around the door 2 so as to prevent a person from colliding with the opening/closing door 2 or being injured by getting their hand or finger caught in the hinge portion. A total of four protection sensors 6 are used, one on each side of the . The protection sensor 6 reflects the laser light on a polygon mirror rotating at high speed to radiate the laser light so as to scan a predetermined surface. of Flight) method to detect the presence and position of a person or the like. As shown in FIG. 1(b), a single protection sensor 6 simultaneously detects a door detection surface 6S for detecting a person near the door and a hinge detection surface 6H for detecting a person's hand or finger near the hinge. can be covered. The use of such a protective sensor 6 eliminates the need for a protective method, such as covering the hinge portion with a cover made of rubber or the like, which is time-consuming and tends to look unsightly unless it is well constructed.

By the way, the controller 4 of the automatic door 1 has an operation mode and a setting mode. The operation mode is a mode when the automatic door 1 is used as an automatic door. On the other hand, the setting mode is a mode that is mainly used during work such as construction, repair, and inspection of the automatic door 1, and various setting modes are prepared according to the type of work. When the mode is switched to the protective sensor setting mode for confirmation, the drive of the door 2 is stopped, and the protective sensor 6 can be adjusted, set and confirmed safely and reliably.

For example, when adjusting the size and position of the door detection surface 6S of the protection sensor 6 according to the size of the door 2, the mounting position of the protection sensor 6, the surrounding environment, etc., the controller 4 is set to the protection sensor setting mode. After stopping the drive of the door 2 and setting the protection sensor 6 to the detection range setting mode, for example, move the hand up and down along the door edge of the door 2 with the door 2 closed, and the protection sensor 6 detects the door edge position. is stored, and when the protection sensor 6 detects a person or the like within the range of the door detection surface 6S that is closer than the door end, a detection signal is output as a protected object, and the door detection that is farther than the door end is performed. When detected outside the range of the surface 6S, it is possible to ignore and not output the detection signal. In addition, since the protection sensor 6 can measure the distance to the floor surface, the door detection surface 6S is set to be slightly above the floor surface, for example, up to 10 cm above the floor surface. When the protection sensor 6 detects a person or the like within the range, it outputs a detection signal as a protected object, and when it detects it outside the range of the door detection surface 6S at a height of less than 10 cm from the floor surface, ignores it and outputs a detection signal. You can set it not to output.

The four protection sensors 6 have a self-diagnostic function and are connected to the controller 4 in a communicable state. A self-diagnosis is performed, and at least when the diagnosis result is normal, a predetermined signal indicating the diagnosis result is transmitted to the controller 4 . A predetermined signal indicating the diagnosis result may be transmitted to the controller 4 even when the diagnosis result is abnormal. If the controller 4 does not receive a predetermined signal indicating the diagnosis result from the protection sensor 6 within a predetermined time after the controller 4 transmits the diagnosis start signal requesting self-diagnosis, the controller 4 detects that the protection sensor 6 is abnormal. judge that it did.
If there is an abnormality in the protective safety function of the protective sensor 6 during the opening/closing operation of the door 2, the passers-by of the automatic door 1 and the surrounding people may be in danger. Before starting the opening operation or closing operation of 2, it is confirmed each time based on the self-diagnostic result received from the protection sensor 6 that there is no abnormality in the detection function of the protection sensor 6 . The detection function of the protection sensor 6 may be confirmed only before starting either the opening operation or the closing operation of the door 2. However, by confirming each time before starting both the opening operation and the closing operation, it is possible to confirm the detection function of the automatic door. 1 can be further enhanced.
As described above, the protection sensor 6 can detect, for example, the floor surface outside the door detection surface 6S, and when the detection range of the protection sensor 6 is set, the ambient environment outside the door detection surface 6S is also stored. . Therefore, the result of confirming that there is no difference between the surrounding environment at the time of self-diagnosis and the surrounding environment stored at the time of setting the detection range can also be used for the self-diagnosis of the protection sensor 6 . However, the method of self-diagnosis of the protection sensor 6 is not limited to this, and appropriate methods may be selected or combined in accordance with the method, structure, design concept, etc. of the protection sensor.

As shown in FIG. 1(a), according to JIS-A4722, in the case of a hinged door, a predetermined area around the door, specifically, a protective sensor detection area 6P on the floor within a range of at least 200 mm from both sides of the door 2 is used as a reference. It provides that the protective sensor 6 must detect the reference body 12 when a part of the body 12 is intruded or present. Therefore, as shown in FIG. 1(d), the reference body 12 is placed in contact with the detection areas 6P on both sides of the door 2, that is, at a position in contact with a line at least 200 mm away from the surface of the door 2, and is moved in the direction of arrow C. It is necessary to move the door 2 and confirm that the protection sensor 6 detects the reference body 12 over the entire range from the door tip to the door bottom. At this time, when the automatic door 1 is set to the protection sensor setting mode, the movement of the door 2 is stopped, so that the positioning of the reference body 12 with respect to the door 2 is facilitated and the confirmation work is facilitated. The reference body 12 is a 700 mm.times.300 mm.times.200 mm rectangular parallelepiped box whose surfaces other than the bottom surface have two predetermined ranges of diffuse reflectance at a predetermined wavelength.

The controller 4 of the automatic door 1 is equipped with a sound generator 7. In the protection sensor setting mode, the controller 4 generates a sound from the sound generator 7 while the protection sensor 6 is detecting, and when the protection sensor 6 is not detecting. Stop the sound generation from the sound generation unit 7 . As a result, the builder or inspector of the automatic door 1 can place the reference body 12 on the floor around the door 2 and move it within a predetermined area to detect the sound generated from the sound generating section 7 of the automatic door 1 . , the detection area 6P of the protection sensor 6 can be confirmed. The builder, inspector, etc. can concentrate only on the floor surface on which the reference body 12 is placed, and there is no need to look up at the protective sensor 6 or the controller 4 above. The burden is also small. In addition, since only one sound generating section 7 is required for the automatic door 1, the cost is low, and the sound from the sound generating section 7 can be heard anywhere around the automatic door 1, so the detection area 6P of the protective sensor 6. confirmation work can also proceed efficiently. Although it is preferable to mount the sound generator 7 on the controller 4, it is not limited to this. good too. Further, the angle θ between the door detection surface 6S and the hinge detection surface 6H of the protection sensor 6 and the surface of the door 2 shown in FIG. If not satisfied, adjust the angle θ and check the detection area again.

The sound generator 7 may typically be an inexpensive buzzer or the like, but is not limited to this as long as it generates sound, and may be a speaker or anything else. In particular, when the sound generating section 7 generates sound, it is preferable to use a speaker. Also, typically, it is conceivable to generate a continuous sound during detection of the protection sensor 6 and stop the generation of sound during non-detection, but not limited to this, and during detection and non-detection. By changing the sound generated by , it is sufficient to distinguish between the two. For example, an intermittent sound with a short silent period may be used during detection, and an intermittent sound with a long silent period may be used during non-detection, or the frequency of the sound may be changed between during detection and during non-detection.

In addition, according to JIS-A4722, when the controller 4 of the automatic door 1 is set to the operation mode and the protection sensor 6 detects the reference body 12 in the moving direction of the door 2 during the opening/closing operation of the door 2, the controller 4 performs the protection operation. , that the door 2 must either stop before it contacts the datum 12, reverse as specified in the product documentation, or switch to low speed operation. The protection operation when the protection sensor 6 detects a person or the like in the direction of movement of the door 2 during the operation of the automatic door 1 is basically guaranteed at the design verification stage of the automatic door 1, but the protection sensor Since there is a possibility that there is a problem in the detection area 6P of 6, if there is a problem after checking the operation during construction, inspection, etc., the detection area 6P will be reconfirmed, and if necessary, the door of the protective sensor 6 The position and size of the detection area 6P of the protection sensor 6 may be corrected by adjusting the angle .theta.

For example, in the vicinity of the power switch of the automatic door 1 outside the horizontal frame 11, at least at a position visible from the outside of the horizontal frame 11, preferably at a position visible from the front of the automatic door on the side on which the door 2 opens. so that the controller 4, in the protection sensor setting mode, emits light from the light emitting unit 8 while the protection sensor 6 is being detected, and stops emitting light from the light emitting unit 8 while the protection sensor 6 is not being detected. good. According to this, the protection sensor 6 can be detected by visually confirming the light emission of the light emitting part 8 of the automatic door 1 while placing the reference body 12 on the floor around the door 2 and moving it within a predetermined area. You can check the area. According to this, when the builder or inspector is hearing impaired, or when the sound from the sound generating unit 7 is difficult to hear due to too much ambient noise during construction of the automatic door 1, or when the sound is difficult to hear at night. Even when the sound generation from the sound generation unit 7 is stopped because the generation is not allowed, the detection area 6P of the protection sensor 6 can be confirmed relatively easily. The reason why the light-emitting part 8 is located near the power switch of the automatic door 1 is that wiring to the light-emitting part 8 is easy, and the light-emitting part 8 is located outside the horizontal frame 11 even when the lid of the horizontal frame is closed. This is because the position is easily visible from the outside. Note that the light-emitting portion 8 may be provided at a position visible from the outside of the protective sensor 6 . At least one of the four protective sensors 6 may be provided with the light emitting unit 8, and light may be emitted from the light emitting unit 8 when any one of all the protective sensors 6 detects the reference body 12. . However, if a light-emitting portion 8 is provided for each of the four protection sensors 6, for example, when the reference body 12 is moved within a predetermined area near the door 2, the protection sensor 6 that detects the reference body 12 will not work. Since it is located in a relatively easy-to-see position for the person who does the driving, compared to the case where the light-emitting part 8 is provided only in one protection sensor 6 or the case where the light-emitting part 8 is provided only in one place near the power switch of the automatic door 1, the light emission is much easier. Visual confirmation of the portion 8 is facilitated. However, the light-emitting portion 8 on the protective sensor 6 above the door 2 or the light-emitting portion 8 near the power switch of the automatic door 1 above the door 2 and the reference body 12 on the floor are alternately observed and protected. Checking the detection area 6P of the sensor 6 is more troublesome than checking with the sound generated from the sound generating unit 7, and also places a heavy burden on the body of the installer, the inspector, and the like. Therefore, it is preferable to use both the sound generating section 7 and the light emitting section 8, and it is further preferable that the sound generation from the sound generating section 7 can be stopped as necessary.

In the protection sensor setting mode, the controller 4 may cause the sound generating section 7 to generate sound even when the activation sensor 5 is detected, and may stop the sound generation from the sound generating section 7 during non-detection. At this time, the sound generated by the sound generator 7 during detection of the activation sensor 5 should be different from at least the sound generated by the sound generator 7 during detection or non-detection of the protection sensor 6 . As a result, the installer or inspector of the automatic door 1 can distinguish whether the protection sensor 6 is detecting or the activation sensor 5 is detecting just by hearing the sound generated from the sound generating unit 7 . At this time, it is preferable to stop the sound generated from the sound generating section 7 while the protective sensor 6 is not detecting. By doing so, it is possible to easily determine whether the protection sensor 6 is detecting or the activation sensor 5 is detecting just by distinguishing between the two types of sounds.

In order to start opening the automatic door 1 at a timing when a passerby does not collide with the opening door 2, it is necessary to appropriately set the detection area of the activation sensor 5. FIG. Many of the activation sensors have a function to turn on the built-in light-emitting part during detection. Although it was empirically judged whether the detection area of the activation sensor 5 was appropriate or not by looking at the light-emitting part while moving around, it was sometimes difficult to see the lighting of the light-emitting part depending on the surrounding environment. rice field. On the other hand, in the automatic door 1, the sound generating part 7 also generates a sound when the activation sensor 5 is detected, so that the installer or inspector of the automatic door 1 can easily confirm the detection area of the activation sensor 5. . At this time, it is desirable to use the object to be detected as defined in FIG. 6 of JIS-A1551 (test method for automatic door opening/closing device), so that the detection area of the start sensor 5 can be accurately confirmed. However, for simple confirmation, the reference body 12 may be used in the same manner as when confirming the detection area of the protective sensor 6 .

FIG. 2 is a block diagram illustrating an outline of the automatic door 1. As shown in FIG. Two driving units 3 for driving the two left and right doors 2, respectively, and two left and right driving units 3 for controlling the driving of the two left and right doors 2 via the two left and right driving units 3 in at least the operation mode having an operation mode and a setting mode. Controllers 4(1) and 4(2) are provided. Among them, 4(1) is the master controller and 4(2) is the slave controller, but these may be configured as one integrated controller 4 . A total of four protection sensors 6 attached to the top of both the front and back surfaces of the two left and right doors 2 are connected to the controller 4 (1). In this example, one of a pair of protective sensors 6(1) and 6(2) attached to the front and back surfaces of one door 2, for example, is directly connected to the controller 4(1). , the other protection sensor 6(2) is connected to controller 4(1) via protection sensor 6(1). One of the pair of protection sensors 6(3) and 6(4) attached to the front and back surfaces of the other door 2 is directly connected to the controller 4(1), and the other protection sensor 6(3) is directly connected to the controller 4(1). Protection sensor 6(4) is connected to controller 4(1) via protection sensor 6(3). However, the connection method of the protection sensors 6 is not limited to this, and all protection sensors 6 may be connected to the controller 4(1), the controller 4(2), or the controller 4 integrating them. Note that the controller 4 in the following description may be divided into the master controller 4(1) and the slave controller 4(2), or may be integrated.

A sound generating unit 7 and a light emitting unit 8 are connected to the controller 4, and the sound generating unit 7 generates sound according to the state of the protection sensor 6, the state of the activation sensor 5, the driving state of the door 2 by the driving unit 3, and the like. light is emitted from the light emitting unit 8 . A transceiver 9 is further connected to the controller 4 . The transmitter/receiver 9 and the setting device 10 can be wirelessly connected to exchange information with each other. The controller 4 has various setting modes including an operation mode and a protection sensor setting mode. For example, the settings can be switched by operating a DIP switch mounted on the circuit board inside the controller 4. It is also possible to wirelessly switch the setting of the controller 4 via the transmitter/receiver 9 using the setting device 10 . The setting device 10 can also display various information received from the controller 4 on the display section of the setting device 10 .
When switched to the protection sensor setting mode, the controller 4 stops driving the door 2 by the drive unit 3 . In order to simplify the control software of the controller 4, the current supply to the drive unit 3 may be interrupted by hardware in the protection sensor setting mode.

Next, the operation in the protection sensor setting mode will be described with reference to FIG. FIG. 3(a) is a flow chart illustrating the operation in the protection sensor setting mode. When the controller 4 is set to the protection sensor setting mode (STEP 1) and the controller 4 stops driving the door 2 by the drive unit 3 (STEP 2), the door detecting surface 6S of the protection sensor 6 attached to the door 2 and the hinge are detected. The detection range setting for the partial detection surface 6H is started (STEP 3). The detection ranges are set for the four protection sensors 6 attached to the left and right doors 2, respectively. First, the door 2 is fully closed so that one protective sensor 6 is in a detection state, and the laser beam emitted from the protective sensor 6 is blocked by moving a hand or the like up and down along the edge of the door. to set the detection range in the direction of the door. Also, the distance to the floor is detected from the return time of the laser beam reflected by the floor, and the detection range is set to slightly above the floor (STEP 4). Thereby, the detection range of the door detection surface 6S is set. Similarly, in the detection state, the door 2 is moved in the range from the fully closed state to the fully open state, and the detection range is set according to the surrounding environment of the door 2 in the entire range stored at that time (STEP 5). As a result, the detection range of the hinge portion detection surface 6H is set. For example, even if there is a wall or the like in the detection range of the protection sensor 6 near the full opening, the influence of the wall is eliminated as part of the surrounding environment, and the protection sensor 6 is detected. Only detection objects can be detected.

The same procedure is repeated for the remaining three protection sensors 6, and after completing the setting of the detection ranges of the series of four protection sensors 6, the detection areas 6P of the four protection sensors 6 are sequentially checked (STEP 6). . A worker such as a builder or an inspector who checks the detection area places the reference body 12 on the floor so that at least part of the predetermined reference body 12 enters the detection area 6P to be detected by the protection sensor 6 near the door 2. If the protection sensor 6 does not detect the reference body 12 when it is positioned and placed on the surface (STEP 7) (NO in STEP 8), the controller 4 does not generate sound from the sound generating section 7. can easily confirm that the protection sensor 6 is not correctly detected, the detection range of the protection sensor 6 is set again (STEP 3). On the other hand, if the protection sensor 6 detects the reference body 12 (if yes in STEP 8), the controller 4 turns on the buzzer of the sound generator 7 during the detection to produce a continuous sound (buzzer sound) as shown in FIG. 3(b), for example. Since the sound (b)) is generated (STEP 9), the operator can easily confirm that the protection sensor 6 is detecting correctly. If the confirmation of the entire range of the predetermined detection area 6P of the protection sensor 6 is not completed (if NO in STEP 10), the operator moves the reference body 12 within the predetermined detection area 6P on the floor. The next position is positioned (STEP7), the protection sensor 6 detects the reference body 12 there as well (yes in STEP8), and the controller 4 turns on the buzzer of the sound generator 7 to generate a buzzer sound (b). Confirm that (STEP9). These steps are repeated, and when the entire range of the predetermined detection area 6P is confirmed (if yes in STEP 10), the detection range of the detection surfaces 6S and 6H of the protection sensor 6 is set and the detection area 6P on the floor surface is set. Confirmation is complete.

After repeating the same procedure to set the detection ranges of the detection surfaces 6S and 6H of all the four protection sensors 6 and confirm the detection area 6P on the floor surface, next, the detection area of the start sensor 5 is set to that of the automatic door 1. Set according to the installation environment with reference to the instruction manual (STEP 11), and start checking the detection area of the activation sensor 5 (STEP 12). When the object to be detected is moved at a predetermined speed within the area to be detected by the activation sensor 5 (STEP 13), if the object to be detected is detected by the activation sensor 5 (if yes in STEP 14), the controller 4 turns on the buzzer of the sound generator 7 to generate an intermittent sound (buzzer sound (c)) such as that shown in FIG. I can confirm that. Conversely, when the object to be detected is moved at a predetermined speed in an area where the activation sensor 5 should not detect it (STEP 13), if the activation sensor 5 does not detect it (NO in STEP 14), the buzzer turns OFF ( STEP 16) Since no sound is generated from the sound generator 7, the operator can confirm that the activation sensor 5 is correctly not detecting. As described above, the object to be detected is moved at a predetermined speed in and around the detection area of the activation sensor 5, and the detection state of the activation sensor 5 is confirmed. If yes), confirmation of the detection areas of both the protection sensor 6 and the activation sensor 5 is completed (STEP 18). In a simple manner, the detection area of the activation sensor 5 can also be confirmed by the sound generated from the sound generating section 7 while positioning the reference body in and around the detection area in the same manner as the detection area of the protection sensor 6. good.

Next, the operation when the controller 4 is set to the operation mode will be described with reference to FIGS. 4 to 6. FIG. FIG. 4 is a flow chart for explaining the operation from when the power of the automatic door 1 is turned on until preparation for operation is completed, and FIG. 5 is a flow chart for explaining the operation after completion of preparation for operation. FIG. 6 shows examples of patterns of sounds (1) to (5) generated by the sound generator 7 in the operation mode of the automatic door 1. The buzzer in the flow charts of FIGS. They correspond to sound (1) to buzzer sound (5), respectively.

In the flowchart of FIG. 4, for example, when the DIP switch on the circuit board of the controller 4 of the automatic door 1 is set to the operation mode (STEP 21), and the power is turned on to the automatic door 1 with the door 2 closed (STEP 22), all The protective sensor 6 of 1 starts self-diagnosis when the power of the protective sensor is turned on (STEP 23). Since the self-diagnosis at the time of power-on takes time, the buzzer sound (1) is continuously generated from the sound generating unit 7 (STEP 24) until the self-diagnosis is completed (STEP 25), and the self-diagnosis is performed by the administrator of the automatic door 1, etc. It's good to let them know you're in. If the self-diagnostic result is OK (STEP 26), the door 2 of the automatic door 1 is closed at a low speed (STEP 27) if the automatic door 1 is not closed (STEP 29) until the closing is completed (STEP 29). It is recommended that the buzzer sound (2) is continuously generated from 7 (STEP 28) to inform the manager or the like that preparations for operation are underway. When the closed state is reached, preparation for operation is completed (STEP 30). If the self-diagnostic result of the protective sensor 6 when the power is turned on is NG (STEP 26), it is dangerous to move the door 2, so the operation of the automatic door 1 is stopped (STEP 31), and an abnormality is generated from the sound generator 7 to the administrator. A buzzer sound (4) is kept generated for a long time until, for example, an administrator or the like notices the abnormality and turns off the power of the automatic door 1.例文帳に追加If the administrator takes no action, the sound generation may be stopped after a predetermined period of time, for example, in the range of 10 to 30 minutes. When an abnormality is notified only by light emitted from the light emitting unit 8 such as an LED, the administrator or the like does not notice the occurrence of the abnormality unless the administrator looks at the light emitting unit 8. If you are near 1, you will naturally hear the buzzer sound (4), so there is an advantage that you will quickly notice the occurrence of an abnormality. It is even better if sound and light are used together. In this case, the light emission from the light emission unit 8 may continue until the administrator or the like notices the abnormality and turns off the power of the automatic door 1 .

Next, the flowchart of FIG. 5 will be described. When the automatic door 1 is ready for operation (STEP 41), it enters a state of waiting for a start signal (STEP 42). When the activation sensor 5 of the automatic door 1 detects a passerby and an activation signal is sent to the controller 4 (if yes in STEP 42), the controller 4 detects all the protection sensors 6 before starting the opening operation of the door 2. is made to perform self-diagnosis before opening/closing (STEP 43). If the self-diagnostic results of all the protection sensors 6 are OK (STEP 44), the controller 4 causes the sound generator 7 to generate a buzzer sound (3) for a short period of time (STEP 45), and then starts opening the door 2. (STEP 46), the administrator or the like of the automatic door 1 simply hears the buzzer sound (3) and confirms that the automatic door 1 is being operated safely in a state where there is no problem with the self-diagnostic results of all the protection sensors 6. I can confirm. At this time, the buzzer sound (3) is generated every time before the opening operation is started, but since the sound is generated for a short period of time, it is of little concern. However, if the buzzer sound (3) is still bothering you every time, you can set it so that only the buzzer sound (3) is stopped and stop the generation of the buzzer sound (3). The number of sounds generated by the sound generator 7 may be limited, for example, the buzzer sound (3) is generated only during the first few opening operations after the power is turned on. If the self-diagnostic result of the protective sensor 6 is NG (STEP 44), it is dangerous to move the door 2, so the operation of the automatic door 1 is stopped (STEP 56). A buzzer sound (4) is continuously generated for a long period of time to notify the occurrence of an abnormality (STEP 57). The buzzer sound (4) may continue to be generated until, for example, the administrator turns off the power of the automatic door 1 or sets to stop all buzzer sounds. 30 minutes or so), it may be automatically stopped.

After starting the opening operation of the door 2 (STEP 46), when the protection sensor 6 detects, for example, a person or the like within a predetermined area in the traveling direction of the door 2 (if yes in STEP 47), the door 2 and the person or the like are detected. Since there is a risk of collision, the controller 4 causes the sound generator 7 to generate a buzzer sound (5) (STEP 58), and at the same time, stops the door 2, reverses it, or decelerates and switches to low speed operation. protection operation is performed (STEP 59). The buzzer sound (5) warns, for example, a person who approaches the door 2 without looking forward or around while looking at the portable terminal, so that the safety of the automatic door 1 can be further enhanced. The buzzer sound (5) may be generated continuously as long as the protection sensor 6 detects it, or may be stopped when the protection operation is completed. After the opening operation starts (STEP 46), when the protection sensor 6 does not detect a person or the like in the advancing direction of the door 2 (in the case of NO in STEP 47), the door 2 is completely opened (STEP 48), and after waiting for a predetermined time. (STEP 49), the controller 4 causes all the protection sensors 6 to perform pre-open/close self-diagnosis before starting the closing operation of the door 2 (STEP 50). When the self-diagnostic results of all the protection sensors 6 are OK (STEP 51), the controller 4 causes the sound generator 7 to generate a buzzer sound (3) for a short period of time (STEP 52), and then starts closing the door 2. (STEP 53), the administrator or the like of the automatic door 1 simply hears the buzzer sound (3) and confirms that the automatic door 1 is being operated safely with no problem in the self-diagnostic results of all the protection sensors 6. I can confirm. As with the buzzer sound (3) at the start of the closing operation, the buzzer sound (3) at the start of the opening operation may be set so that only the buzzer sound (3) is stopped. The number of occurrences may be limited, for example, the buzzer sound (3) is generated only during the first few closing operations after the power is turned on. If the self-diagnostic result of the protective sensor 6 is NG (STEP 51), it is dangerous to move the door 2, so the operation of the automatic door 1 is stopped (STEP 60). A buzzer sound (4) is continuously generated to notify the occurrence of an abnormality (STEP 61). The buzzer sound (4) may continue to be generated until, for example, the administrator turns off the power of the automatic door 1 or sets to stop all buzzer sounds. 30 minutes or so), it may be automatically stopped.

After starting the closing operation of the door 2 (STEP 53), when the protection sensor 6 detects, for example, a person or the like within a predetermined area in the traveling direction of the door 2 (if yes in STEP 54), the door 2 and the person or the like are detected. Since there is a risk of collision, the controller 4 causes the sound generator 7 to generate a buzzer sound (5) (STEP 62), and at the same time, stops the door 2, reverses it, or decelerates it to a low speed operation. protection operation is performed (STEP 63). The buzzer sound (5) warns, for example, a person who approaches the door 2 without looking ahead or around while looking at the mobile terminal, so that the safety of the automatic door 1 can be further enhanced. The buzzer sound (5) may be generated continuously as long as the protection sensor 6 detects it, or may be stopped when the protection operation is completed. After starting the closing operation (STEP 53), when the protection sensor 6 does not detect a person or the like in the traveling direction of the door 2 (in the case of NO in STEP 54), the door 2 is closed (STEP 55), and the state waits for the start signal. Return (STEP 42).

In the description so far, the sound generating section 7 generates a sound according to the detection state of the protection sensor 6, the fault occurrence state during self-diagnosis, the detection state of the activation sensor 5, or the driving state of the door 2 by the driving section 3. However, the present invention is not limited to this, and the sound generating section 7 may generate a sound even when a problem unrelated to the protection sensor 6 occurs in the automatic door 1 . For example, when an abnormality occurs in the rotation or current of the motor of the drive unit 3, or when a problem occurs in the start sensor 5, the controller 4, an electric lock (not shown), etc., Accordingly, a plurality of different types of sounds may be generated from the sound generating section 7 . As a result, the administrator or inspector of the automatic door 1 can not only quickly recognize that some trouble has occurred in the automatic door 1, but also detect the occurrence of the trouble depending on the pattern and frequency of the sound generated from the sound generator 7. Since the location and content can be easily grasped, effective information can be obtained at the time of repair or the like. Further, at this time, the light emitting unit 8 may be caused to emit light in a plurality of different types of light emission patterns depending on the location of the problem and the content of the problem. According to this, it is possible to ascertain the location and content of the defect by both sound and light.
For example, when the light-emitting unit 8 is a single light source, the number of sounds that can be distinguished by the sound generation pattern of the sound generation unit 7 is larger than the number that can be distinguished by the light emission pattern alone. Use of the sound generator 7 enables a more detailed grasp of the location where the problem occurs and the content of the problem. In the case of sound, in addition to being able to use differences in frequency, rhythm, etc., for example, even if the type of defect is represented by the number of simple on/off repetitions, light must be repeated more slowly than sound. Since the number of times cannot be recognized by the eyes, attention becomes distracted when the number of times increases, and there is a limit to the number of times that can be discerned. This is because it is relatively easy to grasp the number of repetitions even if the number of repetitions is large because it is easy to recognize by ear.
However, if the generation of sound disturbs the surroundings, it is possible to stop the sound generation from the sound generation section 7 and notify the location and content of the defect only by emitting light from the light emission section 8. good.
If the setting device 10 is used, it is possible to obtain more detailed information from the controller 4 about the location of the problem, the details of the problem, the situation of the problem, and the like.

A second embodiment of the automatic door of the present invention will be described below with reference to the drawings.
(Second embodiment)
While the first embodiment is a hinged door, the second embodiment is a sliding door as shown in FIG. Embodiment 2 is different in that the controller, protection sensor, and activation sensor are connected via a CAN network. However, since the configuration related to the main part of the present invention is the same as that of the first embodiment, such as the fact that the controller generates sound from the sound generating part according to the state of the protection sensor, only the outline of the similar part will be explained. Detailed description is omitted.

FIG. 7 is an overall view illustrating an outline of an automatic door 21 according to Embodiment 2 of the present invention. The automatic door 21 is a drawable sliding door, and has left and right doors 22 for opening and closing the opening between the fixed left and right FIX 32 by sliding in the width direction, and an upper horizontal frame 31 . A drive unit 23 for driving the door 22 and a controller 24 for controlling the opening/closing operation of the door 22 via the drive unit 23 are disposed inside the lateral frame 31 , and the controller 24 includes a sound generation unit 27 . It is configured.
Activation sensors 25 are arranged at upper central portions inside and outside the opening, respectively, and detect a person or the like by, for example, reflection of irradiated near-infrared rays. The detection area of the activation sensor 25 is formed by combining a plurality of small areas obtained by dividing the passage of the automatic door 21 into front, rear, left, and right, and is an activation area that detects a passerby approaching the door 22 and causes the door 22 to be opened. 25D, and a closing operation protection area 25P for performing a protection operation to prevent the door 22 from colliding with the passers-by, etc. when the opening and the passers-by, etc. in the vicinity of the opening are detected during the closing operation of the door 22. there is That is, the activation sensor 25 is an integrated sensor having two functions of the activation sensor 25d and the closing protection sensor 25p. According to JIS-A4722, in the case of a sliding door, when the entire reference body 34 is located in the closing movement protection area 25P on the floor, defined as a range of 200 mm or more from both sides of the moving area of the door 22 during the closing operation. , must be detected by the function of the closing protection sensor 25p.
By simultaneously checking the detection state of both the activation sensor 25d and the closing protection sensor 25p of the two activation sensors 25 inside and outside, it is possible to recognize the slow passing or stopping of the passerby, resulting in greater safety. can realize an automatic door 21 with a high The detection area of the activation sensor 25 can be adjusted in the longitudinal direction of the passage. It can also be detected only by the function of the closing protection sensor 25p. At this time, the activation sensor 25 on the opposite side may use only the function of the activation sensor 25d.

Two protection sensors 26 are arranged above the surface of the left and right FIX 32 on the side on which the door 22 slides in parallel, and detect a person or the like by, for example, reflection of the irradiated near-infrared rays. The protection sensor 26 has the function of an opening protection sensor 26p for detecting a person near the door 22 near the FIX 32 and preventing the door 22 from colliding with the person during the opening operation. is. According to JIS-A4722, the entire door 22 is placed in an opening operation protection area 26P on the floor defined as a range of 200 mm or more from the door bottom movement area during the opening operation of the door 22 and the surface on the opposite side of the FIX 32. The reference body 34 provided must be detected by the protective sensor 26 . However, if a protective fence is installed to prevent people from entering the area where the door bottom moves during the opening operation and its vicinity, the protective sensor 26 does not have to be installed.
A light emitting part 28 is further arranged near the power switch of the automatic door 21, and even if the automatic door 21 is in operation and the horizontal frame 31 is covered with a lid, the light emitting state of the light emitting part 28 can be visually confirmed. It is possible to The light emitting unit 28 is directly connected to the controller 24, but may be connected via a CAN network. The light-emitting portion 28 is in a state in which the light-emitting state of the light-emitting portion 28 can be visually observed from the outside through an integrated start-up (protection) sensor 25 or a protection sensor 26 that has two functions of a start-up sensor 25d and a closing operation protection sensor 25p. and connected to the controller 24 via a CAN network.
Similarly, the sound generating unit 27 is also incorporated in an integrated start (protection) sensor 25 or protection sensor 26, which has two functions of a start sensor 25d and a closing operation protection sensor 25p, other than the controller 24, and is connected to the CAN network. It may be connected to the controller 24 via.

FIG. 8 is a block diagram illustrating an outline of an automatic door 21 according to Embodiment 2 of the present invention. The automatic door 21 has the functions of a controller 24 that controls the opening/closing operation of the door 22 via the drive unit 23, an activation sensor 25 integrating the functions of the activation sensor 25d and the closing protection sensor 25p, and an opening protection sensor 26p. The protective sensor 26 provided with the device, an electric lock (not shown), and the like are connected via a CAN network 33 . Each block connected by the CAN network communicates with each other, and the controller 24 controls opening and closing of the door 22 while confirming that each block functions normally. The sound generating section 27 is built in the controller 24, and the controller 24 generates a predetermined sound from the sound generating section 27 according to the states of the protection sensor 26 and the activation sensor 25, and the like. The light emitting unit 28 is connected to the controller 24 and arranged near the power switch of the automatic door 21. The controller 24 causes the light emitting unit 28 to emit predetermined light according to the states of the protection sensor 26 and the activation sensor 25. . A transmitter/receiver 29 is further connected to the controller 24, and the setting of the controller 24 can be changed using a setting device 30 wirelessly connected to the transmitter/receiver 29. FIG. However, it is also possible to switch the setting by operating a DIP switch mounted on the circuit board inside the controller 24 . Controller 24 has an operating mode and various configuration modes, including a protection sensor configuration mode.
Even if the sound generating unit 27 and the light emitting unit 28 are built in the activation sensor 25 and the protection sensor 26, the controller 24, the activation sensor 25, and the protection sensor 26 are all connected to the CAN network 33. Generation of sound from the sound generator 27 and light emission from the light emitter 28 can be easily controlled.

When the automatic door 21 is put into the protection sensor setting mode, the driving of the door 22 by the driving section 23 is stopped. When at least one of the function of the closing protection sensor 25p of the activation sensor 25 and the function of the opening protection sensor 26p of the protection sensor 26 is being detected, the controller 24 causes the sound generating section 27 to generate a sound, Sound generation is stopped during detection. As a result, the installer, inspector, etc. of the automatic door 21 can move the reference body 34 placed on the floor around the automatic door 21 through at least the entire area inside the closing protection area 25P and the opening protection area 26P. The protection area of the protection sensor can be confirmed only by listening to the sound generated from the sound generation unit 27 while the protection sensor is being operated. It should be noted that the reference body 34 is composed of surfaces with each surface other than the bottom surface having two predetermined ranges of diffuse reflectance at a predetermined wavelength, and the protected area of the protective sensor is determined using all relevant surfaces of the reference body 34. do. Further, when the function of the activation sensor 25d of the activation sensor 25 is detecting, the sound generator 27 generates a different sound than when the function of the closing protection sensor 25p is detecting. As a result, the installer, inspector, or the like of the automatic door 21 can easily confirm the activation area 25</b>D simply by listening to the sound generated from the sound generating section 27 .

When the automatic door 21 is set to the protection sensor setting mode, the controller 24 further emits light when at least one of the function of the closing protection sensor 25p of the activation sensor 25 and the function of the opening protection sensor 26p of the protection sensor 26 is being detected. Light may be emitted from the portion 28, and light emission may be stopped when both are not detecting. As a result, even in a situation where it is difficult for the installer or inspector of the automatic door 21 to hear the sound, the reference member 34 is placed on the floor surface around the automatic door 21 so that at least the closing operation protection area 25P and the opening operation protection area 26P can be detected. The protected area of the protected sensor can be confirmed by observing the light emitted from the light emitting section 28 while moving the entire area inside the . Further, when the function of the activation sensor 25d of the activation sensor 25 is detecting, the light emitting section 28 emits light different from that when the function of the closing protection sensor 25p is detecting. As a result, the builder or inspector of the automatic door 21 can easily confirm the activation area 25D by looking at the light emitted from the light emitting part 28 even in a situation where it is difficult to hear the sound. When accurately confirming the activating area 25D, it is desirable to use the detectable body defined in FIG. 6 of JIS-A1551. However, the reference body 34 may be used for simple confirmation. When different light is generated during detection of the activation sensor and during detection of the protection sensor, the colors of light emitted from both may be different. You may change a light emission pattern. If sound generation is not permitted, sound generation from the sound generation unit 27 is stopped, and the protection area of the protection sensor and the detection area of the activation sensor can be confirmed only by the generation of light from the light emission unit 28. good.

When the automatic door 21 is set to the operation mode, the controller 24 controls the function of the closing operation protection sensor 25p of the at least two activation sensors 25 and the two protection sensors 26 before starting to drive the door 22 via the drive unit 23. Confirm via the CAN network 33 that everything is functioning normally. When all the protection sensors are confirmed to be normal, the sound generator 27 generates a sound for a short time, and the opening or closing operation of the door 22 is started. The sound generated before the start of the opening/closing operation is short-lived, so it does not bother me much. The number of times the sound is generated may be limited, for example, the sound may be generated only when the opening and closing operations are performed several times. On the other hand, if even one of the protective sensors is found to be abnormal, the sound generator 27 emits a sound for a long time, and the door 22 stops driving. In this case, the sound may continue to be generated until, for example, the administrator turns off the power of the automatic door 21 or sets all sounds to be stopped. degree), it may be automatically stopped. Only by listening to the sound generated from the sound generating section 27 in this way, it is possible to easily confirm whether or not all the protection sensors are functioning normally.
Further, when it is confirmed that all the protection sensors are functioning normally before starting to drive the door 22, light is emitted from the light emitting part 28 for a short time when starting the opening operation or closing operation of the door 22. While the light is emitted, if an abnormality is confirmed in one protection sensor, the driving of the door 22 may be stopped and the light emitted from the light emitting part 28 may be emitted for a long time. The light in this case may continue to be emitted until, for example, an administrator or the like turns off the automatic door 21 . Even if the sound generation from the sound generation unit 27 is stopped by setting, by checking the light emission from the light emission unit 28, it is possible to easily confirm whether or not all the protection sensors are functioning normally. can.

In the operation mode, when the function of the closing protection sensor 25p of the activation sensor 25 detects a person or the like in the closing protection area 25P in the traveling direction of the door 22 while the door 22 is being closed, the controller 24 outputs the signal from the sound generating unit 27. In addition to generating a warning sound, a protection operation such as stopping, reversing, or decelerating the door 22 is performed in order to protect a person in the closing protection area 25P. Further, when the protection sensor 26 detects a person or the like in the opening protection area 26P in the traveling direction of the door 22 during the opening operation of the door 22, the controller 24 causes the sound generating section 27 to generate a warning sound and the opening protection area. In order to protect the person inside 26P, the door 22 is stopped, reversed, or decelerated. As the warning sound, for example, a continuous sound may be generated, or a voice prompting evacuation may be generated.
In the operation mode, when the function of the closing protection sensor 25p of the activation sensor 25 detects a person or the like in the closing protection area 25P in the traveling direction of the door 22 before the door 22 starts closing, the controller 24 controls the sound generating section 27. In addition to generating a warning sound from the door 25P, a protective operation such as decelerating the closing operation of the door 22 is performed in order to protect the person in the closing operation protection area 25P. Further, when the protection sensor 26 detects a person or the like in the opening protection area 26P in the traveling direction of the door 22 before the opening operation of the door 22 is started, the controller 24 causes the sound generating section 27 to generate a warning sound and also protects the opening operation. In order to protect the person in the area 26P, a protection operation such as opening the door 22 at a reduced speed is performed. As the warning sound, for example, a continuous sound may be generated, or a voice prompting evacuation may be generated.
By generating a warning sound from the sound generator 27, the safety of the automatic door 21 can be further enhanced.

In the operation mode, after the power of the automatic door 21 is turned on, until the controller 24 completes preparations for driving the door 22, including checking the self-diagnostic results of all the protection sensors via the network 33, A sound is generated from the sound generating section 27, and when the preparation is completed, the sound generation from the sound generating section 27 is stopped. As a result, it is possible to easily confirm that the automatic door 21 is in an operating state after the power is turned on, simply by listening to the sound from the sound generating section 27.例文帳に追加

In the description so far, the sound generation unit 27 generates a sound according to the detection state of the protection sensor 26, the failure occurrence state during self-diagnosis, or the detection state of the activation sensor 5, but it is not limited to this. The sound generator 27 may also generate a sound when a problem unrelated to the protection sensor 26 occurs in the automatic door 21 . For example, when an abnormality occurs in the rotation or current of the motor of the drive unit 23, or when a problem occurs in the start sensor 25, the controller 24, an electric lock (not shown), etc., the location and details of the problem are identified. Accordingly, a plurality of different types of sounds may be generated from the sound generating section 27 . Since it is possible to easily grasp the location and details of the problem depending on the type of sound, effective information can be obtained for repairs and the like. Further, at this time, the light emitting unit 28 may be caused to emit light in a plurality of different light emission patterns depending on the location of the problem and the content of the problem. According to this, it is possible to ascertain the location and content of the defect by both sound and light. However, if the generation of sound becomes a problem, the generation of sound from the sound generation section 7 may be stopped, and only the light emission from the light emission section 8 may be used to indicate the location of the problem and the content of the problem.

In the first embodiment, the automatic hinged door was described, and in the second embodiment, the automatic sliding door was described as an example. It can also be applied to automatic doors. That is, although the protective area around the door and the arrangement of the protective sensor differ depending on the type of the automatic door, by generating a predetermined sound from the sound generating section according to the state of the protective sensor, the first and second embodiments can Effects similar to those described above can be obtained.

1: Automatic door (swing door)
2: Door 3: Drive unit 4: Controller 5: Start sensor 6: Protection sensor 6S: Protection sensor door detection surface 6H: Protection sensor hinge detection surface 6P: Protection sensor detection area 7: Sound generation unit 8: Light emission unit 9 : Transceiver 10 : Setting device 11 : Horizontal frame 12 : Reference body 21 : Automatic door (sliding door)
22 : Door 23 : Drive unit 24 : Controller 25 : Starting sensor 25P : Closing operation protection area 26 : Protection sensor 26P : Opening operation protection area 27 : Sound generating unit 28 : Light emitting unit 31 : Horizontal frame 32 : FIX
33: network 34: reference body

Claims (9)

a door that rotates around a hinge;
a drive unit for driving the door;
a controller having an operation mode and controlling driving of the door by the drive unit at least in the operation mode;
an activation sensor that detects a passerby passing through the door and sends an activation signal to the controller;
and a protective sensor attached near the hinge portion on each of the front and back surfaces of the door,
The protection sensor has a door detection surface for detecting an object such as a person near the door on the door surface side to which the protection sensor is attached, and a hinge detection surface for detecting an object such as a person's finger near the hinge. having a surface and
The protective sensor further has a self-diagnostic function for self-diagnosing whether the protective sensor is functioning normally, and if the result of the self-diagnosis is normal, transmits a predetermined signal to the controller,
In the operation mode, the controller requests self-diagnosis from the protection sensor before starting to drive the door, and drives the door when the self-diagnosis result received from the protection sensor is normal. is started, and if there is an abnormality, the drive of the door is stopped,
When the protection sensor attached to the surface of the door in the traveling direction detects an object in the vicinity of the door or an object in the vicinity of the hinge portion during the rotation of the door, the controller moves the door. 1. An automatic door, characterized in that it carries out a protective action of either stopping or reversing or switching to low speed operation. 2. The automatic door according to claim 1, further comprising a protection sensor setting mode for adjustment and confirmation of said protection sensor, wherein driving of said door is stopped in said protection sensor setting mode. Further having a sound generating part,
3. The automatic door according to claim 2, wherein in the protection sensor setting mode, the controller changes the sound generated by the sound generation unit depending on whether the protection sensor is being detected or not. 4. The controller according to claim 3, wherein in the protective sensor setting mode, the controller causes the sound generating unit to generate sound while the protective sensor is being detected, and stops the sound generation while the protective sensor is not being detected. automatic door. In the protection sensor setting mode, the controller causes the sound generation unit to generate a sound different from the sound generated by the sound generation unit during detection or non-detection of the protection sensor during detection of the activation sensor. 5. The automatic door according to claim 3 or 4, characterized by: Further having a sound generating part,
2. The automatic door according to claim 1, wherein in the operation mode, the controller causes the sound generating section to generate a sound simultaneously with the protective operation. Further having a sound generating part,
In the operation mode, the controller changes the sound generated by the sound generation unit depending on whether the self-diagnosis results received from all the protection sensors are normal or when there is an abnormality. Item 1. The automatic door according to item 1. 8. The automatic door according to any one of claims 3 to 7, wherein the controller can be set to stop the sound generation from the sound generation unit. The door comprises a pair of left and right doors that rotate around hinges at both ends,
The drive unit comprises a pair of drive units for driving the pair of left and right doors,
The protection sensors are composed of four protection sensors attached near the hinge portions on the upper surfaces and the back surfaces of the pair of left and right doors,
The controller is divided into a master controller and a slave controller connected to each other, the master controller being connected to one of the pair of driving units and the four protection sensors, and the slave controller being connected to the pair of driving units. 9. The automatic door according to any one of claims 1 to 8, wherein the other of the two is connected.

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