JP2006241972A - Door sensor and door equipped with the door sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide door sensors and a door equipped with the door sensors causing neither complication of constitution nor complication of installation work in constitution of mounting a so-called safety sensor such as a swing side sensor to a door body. <P>SOLUTION: The door sensors 6, 7 are mounted to the door body of an automatic swing door. The door sensors 6, 7 are equipped with door position detecting means 67, 77 formed of geomagnetic sensors so that the sensors 6, 7 themselves can detect the opening/closing operating position of the door body. When the door body is operated to open/close, whether a detected object is an object to be detected or not is discriminated according to the detected opening/closing operating position of the door body, and in the case of the object to be detected, the opening/closing operation of the door body is stopped or decelerated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door sensor provided in a swing door or the like and a door provided with the door sensor. In particular, the present invention relates to a measure for simplifying the configuration of the door sensor.

  Conventionally, a general automatic swing door is located at a closed position where the door body closes the door opening when a person is not approaching the door. When a person approaches from the approach side, which is one side of the door, the door body is swung to the swing side, which is the opposite side of the approach side, and the door opening is opened to allow traffic. .

  In order to perform such an opening operation, in this type of door, an approach side sensor is provided on a surface on the side of an invisible eye that constitutes the upper edge of the door opening. That is, the approach side sensor detects that a person has approached from the approach side, and the door drive mechanism is driven in accordance with this detection to swing the door body to the swing side.

Further, when a person exists in the swing area during the swing operation of the door body, it is necessary to stop the swing or reduce the swing speed so that the door body does not come into contact with the person. For this reason, a swing-side sensor is provided on the surface on the side of the swing that is invisible so that the presence or absence of a person on the swing side of the door body can be detected.
JP 2002-116266 A

  However, in the above-described conventional automatic swing door, when the door body swings, the door body passes through the detection area of the swing side sensor.

  For this reason, in the detection area, the area hidden by the passing door body cannot be detected by the swing side sensor, and in some cases, there is a person in the swing area. Nevertheless, there was a possibility that it could not be detected.

  As a means for solving this problem, attaching a swing side sensor to the door body can be mentioned. According to this, since the swing side sensor also moves with the swing operation of the door body, the door body does not pass through the detection area of the swing side sensor.

  However, in this configuration, the detection area of the swing side sensor changes as the door body swings. For this reason, even objects (wall surfaces, guard rails, etc.) that are located around the door and that are located outside the swing area of the door body (positions where the door body does not come into contact even if it swings) are detected. It will be.

  Therefore, when adopting the configuration in which the swing side sensor is attached to the door body in this way, the swing operation position of the door body is recognized, and whether or not the object detected by the swing side sensor is an object to be detected. It is necessary to be able to determine whether or not depending on the swing position of the door body.

  However, so far, no proposal has been made for obtaining sufficient reliability with a simple configuration as this discrimination operation.

  For example, a door drive mechanism (such as a drive motor) is provided with a function for recognizing the rotation angle position of a door, the output signal is received by a swing side sensor, and the object detected by the swing side sensor is detected at the rotation angle position of the door body. Accordingly, a configuration for determining whether or not the object is an object such as a person to be detected can be considered.

  However, in this configuration, it is necessary to add a new function such as a rotational angle position recognition function to the door drive mechanism, and wiring for transmitting an output signal from the door drive mechanism to the swing side sensor is necessary. Will be complicated and installation work will be complicated. In addition, in an automatic swing door that has already been installed, the door drive mechanism does not have a rotational angle position recognition function in the first place, so it is practically impossible to adopt this configuration. That is, this configuration cannot be realized by retrofitting an existing automatic swing door.

  Therefore, in order to increase the practicality of the configuration in which the swing side sensor is attached to the door main body, the inventor of the present invention maintains the conventional door drive mechanism (without the rotational angle position recognition function). The present invention has been achieved by focusing on the fact that it is necessary to determine whether or not the detected object is an object such as a person to be detected in accordance with the rotational angle position of the door body.

  In addition, the above-described problems may occur not only in automatic swing doors but also in automatic revolving doors, folding automatic doors, flip-up gate doors, and the like. Further, in this type of door, the same problem occurs when applied to a door sensor that functions as a safety sensor during a closing operation (such as when the approach side sensor functions as a safety sensor).

  The present invention has been made in view of the above points, and the object of the present invention is to make the configuration complicated and the installation work complicated compared to a configuration in which a so-called safety sensor such as a swing side sensor is attached to the door body. An object of the present invention is to provide a door sensor that does not invite and a door including the door sensor.

-Summary of invention-
In order to achieve the above-described object, the present invention provides a sensor itself attached to the door body with a function of detecting the opening / closing operation position of the door body so that the door body can be opened and closed without receiving door position information from an external device. The movement position is recognized and the movement of the door body is controlled accordingly.

-Solution-
Specifically, door position detection means, object detection means, and object determination means are provided. The door position detection means is attached to a door body that can be freely opened and closed, and can detect an opening / closing operation position of the door body. The object detection means is attached to the door body and detects the presence or absence of an object in the detection area. The object determination means receives outputs from the door position detection means and the object detection means, and determines whether or not the object detected by the object detection means is an object to be detected according to the opening / closing operation position of the door body. It has become.

  With this specific matter, the door sensor itself detects the opening / closing operation position of the door body, recognizes the opening / closing operation position of the door body without receiving door position information from an external device (for example, a door drive mechanism), and The movement control of the corresponding door main body can be performed. For this reason, it is not necessary to newly add a rotation angle position recognition function to an external device such as a door driving mechanism, and wiring work for transmitting an output signal from the external device to the door sensor is also unnecessary. For this reason, complication of a structure and complication of installation work can be avoided. In addition, even for doors such as automatic swing doors that have already been installed, it is possible to perform movement control of the door body according to the opening / closing operation position of the door body simply by attaching this door sensor to the door body. The door which obtains the said effect | action can be constructed | assembled by retrofitting with respect to the existing door.

  Specifically, as the door position detecting means, one that is attached to a door body that can be opened and closed by a rotating operation and configured to detect the rotational angle position of the door body is adopted. More specifically, it is constituted by a geomagnetic sensor or a gyro sensor. This configuration is suitable when the present invention is applied to, for example, an automatic swing door or an automatic revolving door. In addition, when the present solution is applied to a sliding door, a sensor may be attached so that the rotation of the roller or cam of the sliding mechanism can be detected.

  As a configuration for performing movement control of the door body accompanying recognition of the opening / closing operation position of the door body, the following is listed. In other words, the door sensor is attached to the surface facing the moving direction when the door body is opened. A door controller that stops or decelerates the opening operation of the door body when the object detected by the object detection means is an object to be detected.

  Moreover, a door sensor is attached to the surface which faces the moving direction side at the time of closing operation of a door main body. When the object detected by the object detection means is an object to be detected, a door controller that stops or decelerates the closing operation of the door body is provided.

  In the case of the former configuration (a configuration in which the door sensor is attached to the surface facing the moving direction when the door body is opened), the door body is prevented from coming into contact with a person during the door body opening operation. In the case of the latter configuration (a configuration in which the door sensor is attached to the surface facing the moving direction during the closing operation of the door body), the door body may come into contact with a person or the like during the closing operation of the door body. Can be avoided. In particular, in the latter case, it is also possible to use an activation sensor as a door sensor.

  As a specific overall configuration of the door sensor, a sensor package is provided, and a door position detection unit, an object detection unit, and an object determination unit are accommodated in the sensor package. For this reason, as an operation | work which attaches this door sensor to a door, what is necessary is just to attach a sensor package to a door surface by means, such as sticking, and an attachment operation | work is easy.

  Further, the object detection means is configured to be able to switch the detection area, and is provided with an area switching means for receiving the output from the door position detection means and switching the detection area of the object detection means in accordance with the opening / closing operation position of the door body. ing.

  This specific matter makes it possible to switch the detection area of the object detection means while avoiding an object that should not be detected according to the opening / closing operation position of the door body. Further, the use form of the door sensor can be expanded so that the door sensor temporarily functions as an activation sensor and otherwise functions as a safety sensor according to the opening / closing operation position of the door body.

  A door in which any one of the above solutions is attached to the door body and the door body opens and closes in conjunction with the object detection operation of the door sensor is also within the scope of the technical idea of the present invention.

  In the present invention, the sensor itself attached to the door body is provided with a function of detecting the opening / closing operation position of the door body, the opening / closing operation position of the door body is recognized without receiving door position information from an external device, and accordingly The movement of the door body is controlled. For this reason, it is not necessary to newly add a rotation angle position recognition function to an external device such as a door driving mechanism, and wiring work for transmitting an output signal from the external device to the door sensor is also unnecessary. As a result, it is possible to avoid complication of configuration and complication of installation work. In addition, even for doors such as automatic swing doors that have already been installed, it is possible to perform movement control of the door body according to the opening / closing operation position of the door body simply by attaching this door sensor to the door body. By retrofitting an existing door, a door that exhibits the above effects can be constructed, and a highly practical door sensor can be provided.

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

(First embodiment)
First, the first embodiment will be described. In this embodiment, the present invention is applied to an automatic swing door.

  FIG. 1 is a perspective view of an automatic swing door 1 according to the present embodiment, where (a) shows a door closed state and (b) shows a door open state. FIG. 2 is a side view of the automatic swing door 1 in the door closed state. FIG. 3 is a block diagram showing a control system of the automatic swing door 1.

-Description of overall configuration of automatic swing door 1-
As shown in FIGS. 1 and 2, in the automatic swing door 1, a pair of vertices 21, 21 arranged vertically with a predetermined interval on the floor surface F, and these two vertices 21, 21 are provided. A door opening 2 is formed by the invisible 22 straddling between the upper end portions. And the door main body 3 of the shape which closes this to the door opening 2 is attached. A position where the door body 3 closes the door opening 2 is referred to as a closed position (see FIG. 1A).

  The door body 3 has a rotating shaft (not shown) extending in the vertical direction in the vicinity of one (right side in FIG. 1) vertical 21 and swings around the rotating shaft. This swing is performed to a position where the person M can pass through the door opening 2, and the position where the swing is stopped is referred to as an open position (see FIG. 1B).

  In the following description, the near side in FIG. 1 and the left side in FIG. 2 are called the swing side, and the back side in FIG. 1 and the right side in FIG. An area that passes when the door body 3 swings is called a swing area.

  In order to swing the door body 3, a driving device 4 is provided in the mesh 22. For example, as shown in FIG. 3, the drive device 4 includes a motor 51 and a door controller 52 for controlling the motor 51.

  Guard rails 23 and 23 are provided on the swing sides of the verticals 21 and 21.

-Explanation of control system of automatic swing door 1-
On both surfaces of the door main body 3 of the automatic swing door 1 according to the present embodiment, door sensors 6 and 7 configured such that respective means described later are housed in a package are attached. Each door sensor 6, 7 is attached in the vicinity of the upper end of the door body 3 and in the vicinity of the side edge opposite to the one side edge supported by the rotating shaft.

  Specifically, the sensor 6 attached to the approach side surface of the door body 3 detects when a person approaches from the approach side and activates the door body 3 to perform a swing operation. It is the approach side sensor 6 which functions as a sensor.

  On the other hand, the sensor 7 attached to the surface of the door body 3 on the swing side detects that there is a person in the swing area during the swing operation of the door body 3, and the door body 3 does not contact the person. Thus, the swing-side sensor 7 functions as a safety sensor for stopping the swing operation or decelerating the swing speed.

  As shown in FIG. 3, each sensor 6, 7 has light projecting parts 61, 71 and light receiving parts 62, 72. The light projecting units 61 and 71 include, for example, a plurality of infrared light emitting diodes, which project light toward the floor surface F under the control of the CPUs 63 and 73. A broken line A in FIG. 1 indicates a light projecting area of the light projecting unit 61 of the approach side sensor 6, and a broken line B in FIG. 1 indicates a light projecting area of the light projecting unit 71 of the swing side sensor 7. The reflected light of the light is received by the light receiving parts 62 and 72. This light reception signal is supplied to the CPUs 63 and 73, and whether or not the value of the light reception signal exists within the allowable area determined based on the predetermined reference value and the allowable value as the value of the light reception signal, respectively. 73, the object detection means 65, 75 are determined. If the value of the received light signal does not exist within the allowable area, it is determined that the object has been detected, and the object detection means 65, 75 outputs the object detection signal. appear.

  On the other hand, the reference value is set for each door position, which is each position rotated by a predetermined angle from the closed position of the door body 3 to the open position. These reference values are stored in storage means 64 and 74 constituted by an EEPROM or the like. These reference values are determined by a learning operation (teaching) in response to an operation of a switch, for example, a learning switch. That is, in a state where no person or the like exists in the detection area, the door body 3 is rotated from the closed position to the open position by a predetermined angle, and the change in the received light amount of the light receiving portions 62 and 72 at that time is recognized. The reference value at each rotational position is set so that the object such as a wall that should not be detected is not erroneously recognized or the change in the light reflection state on the floor is not adversely affected. Store in the storage means 64, 74.

  Each sensor 6, 7 is provided with door position detecting means 67, 77. The door position detecting means 67 and 77 are configured to be able to detect the opening / closing operation position of the door body 3, that is, the rotational angle position of the door body 3. Specifically, the door position detecting means 67 and 77 are constituted by geomagnetic sensors. That is, by moving together with the opening / closing operation (rotating operation) of the door body 3, a change in geomagnetism is recognized, and thereby the rotational angle position of the door body 3 can be detected.

  It should be noted that there is no particular problem when the environment of the installation position of the automatic swing door 1 includes a sufficient magnetic field that allows the door position detection means 67 and 77 to recognize a change in geomagnetism. If it does not exist, a magnetic field generating means such as a magnet is embedded in the installation position of the automatic swing door 1 and the surrounding ground so that an appropriate magnetic field exists.

  The object determination means 66 and 76 are configured to receive the output from the door position detection means 67 and 77 and the object detection means 65 and 75 and the information stored in the storage means 64 and 74. Then, the object determination means 66 and 76 compare the signals, and whether the detected object is an object to be detected such as a human body or whether it is to be detected such as a wall surface or guardrail 23 recognized in the above teaching. Whether the object is a non-existing object is determined according to the rotational angle position of the door body 3.

  In the approach side sensor 6, when it is determined that the object is to be detected, an object detection signal is supplied to the door controller 52. Thereby, the swing operation of the door body 3 is started.

  On the other hand, in the swing side sensor 7, the object detection signal is supplied to the door controller 52 only when it is determined that the object detected during the swing operation in the opening direction of the door body 3 is the object to be detected. Is done. As a result, the swing operation of the door body 3 is stopped or the swing speed is reduced.

  Further, in the approach side sensor 6, the object detection signal is also sent to the door controller 52 when it is determined that the object detected during the swing operation in the closing direction of the door body 3 is the object to be detected. Supplied. As a result, the swing operation in the closing direction of the door body 3 is stopped or the swing speed is reduced.

  Since the control system of the automatic swing door 1 is configured as described above, the opening / closing operation of the automatic swing door 1 is executed as follows.

  First, when the door body 3 is in the closed state as shown in FIG. 1A, when a person approaches from the approach side, the object detection means 65 of the approach side sensor 6 generates an object detection signal. Along with this, the motor 51 is activated by the control of the door controller 52, and the swing operation in the opening direction of the door body 3 is started.

  At this time, the swing side sensor 7 detects an object in the detection area on the swing side. If no object such as a person is present in the detection area, the swing operation of the door body 3 is continued to the open position. At this time, the guard rail 23 enters the detection area of the swing side sensor 7 with the swing operation of the door body 3, but the detection signal of the guard rail 23 is canceled by the teaching operation described above.

  When the object detected during the swing operation of the door body 3 in the opening direction is an object such as a human body to be detected, an object detection signal is supplied from the object determination unit 76 to the door controller 52. . Accordingly, the swing operation of the door body 3 is stopped or the swing speed is reduced, and the collision of the door body 3 with an object such as a person existing in the swing side region is avoided. Then, after an object such as a person existing in the swing side area moves out of the detection area, the door body 3 is swung to the open state.

  After the open state of the door body 3 is continued for a predetermined time, the swing operation in the closing direction of the door body 3 is started. At this time, the approach side sensor 6 detects an object in the detection area on the approach side. When no object such as a person exists in the detection area, the swing operation of the door body 3 is continued as it is to the closed position. At this time, the guard rail 23 enters the detection area of the approach side sensor 6 along with the swing movement of the door body 3. In this case, the detection signal of the guard rail 23 is canceled by the teaching operation described above. Is done.

  When the object detected by the approach side sensor 6 during the swing operation in the closing direction of the door body 3 is an object such as a human body to be detected, an object detection signal is sent from the object determination means 66 to the door controller. 52. Accordingly, the swing operation of the door body 3 is stopped or the swing speed is reduced, and the collision of the door body 3 with an object such as a person existing in the swing side region is avoided. Then, after an object such as a person existing in the approach side area moves out of the detection area, the door body 3 is swung to the closed state.

  As described above, in this embodiment, each sensor 6, 7 itself detects the opening / closing operation position of the door body 3, and recognizes the opening / closing operation position of the door body 3 without receiving information from the drive mechanism 4. And the opening / closing control of the door main body 3 according to it can be performed. For this reason, it is not necessary to newly add a rotation angle position recognition function to the drive mechanism 4, and wiring work for transmitting an output signal from the drive mechanism 4 to the door sensors 6, 7 is also unnecessary. As a result, it is possible to avoid complication of configuration and complication of installation work. Further, even with the automatic swing door 1 already installed, the movement of the door body 3 can be controlled according to the opening / closing operation position of the door body 3 only by attaching the door sensors 6 and 7 to the door body 3. As a result, it can be easily retrofitted to the existing door 1.

(Modification of the first embodiment)
In the first embodiment described above, the case where the present invention is applied to both the approach side sensor 6 and the swing side sensor 7 has been described. However, the present invention may be applied only to the swing side sensor 7. In this case, the approach side sensor 6 has only a function as an activation sensor. However, it is preferable to provide means for functioning as a safety sensor during the closing operation of the door body 3 separately from the approach side sensor 6. In this case, the approach side sensor 6 is not necessarily attached to the door body 3 and may be attached to the invisible 22 or the like.

(Second Embodiment)
Next, a second embodiment will be described. In this embodiment, the present invention is applied to an automatic revolving door.

  FIG. 4 is a plan view of the automatic revolving door 1 according to the present embodiment. FIG. 5 is a block diagram showing a control system of the automatic revolving door 1.

  The automatic revolving door 1 according to the present embodiment is constituted by four door bodies 3, 3,... That are integrally connected with each other at an angular interval of 90 degrees. In the automatic rotating door 1, a door sensor 7 having substantially the same configuration as the swing side sensor in the first embodiment is attached to each door body 3. Specifically, each door body 3 is disposed in the vicinity of the upper end position of the substantially central portion in the width direction. Here, only a different part from the swing side sensor in 1st Embodiment mentioned above is demonstrated.

  The feature of the door sensor 7 in this embodiment is that the detection area is configured to be switchable. That is, the light irradiation area by the light projecting unit 71 is switched. Specifically, as shown in FIG. 5, a detection area (light-projecting area of the light-projecting unit 71) that is set by the object-detecting means 75 according to the rotational position of the door body 3 upon receiving an output from the door position detecting means 77 ) Switching area 78 is provided.

  Hereinafter, each detection area switched by the area switching means 78 will be described.

  First, in the state shown in FIG. 4, in the door main bodies 3A and 3C that are not in the position facing the entrance / exit 11, the detection area of the door sensor 7 is set only on the downstream side in the rotation direction of the door main bodies 3A and 3C (broken line in FIG. 4). Projection area C1). That is, the detection area is set so as to detect only whether or not an object such as a person exists on the downstream side in the rotation direction of the door main bodies 3A and 3C.

  On the other hand, in the door main bodies 3B and 3D located at the position facing the entrance / exit 11, the detection area of the door sensor 7 is set on the downstream side in the rotation direction of the door main body 3 and the periphery of the opening edge of the entrance / exit 11 (indicated by a broken line in FIG. 4). Illuminating areas C2 and D) shown. That is, it is detected whether or not an object such as a person is present on the downstream side of the rotation direction of the door body 3, and even if the door bodies 3B and 3D rotate as they are, the door bodies 3B and 3D and the doorway 11 are detected. The detection area is set so as to detect whether or not a person is caught between the opening edges of the two.

  As described above, in this embodiment, the rotational position of each door body 3A to 3D of the automatic revolving door 1 is detected by the door position detecting means 77 formed of a geomagnetic sensor, and the detection area is switched according to the detected rotational position. I have to. For this reason, the door sensors 7 and 7 provided in the door main bodies 3A and 3C that are not in the position facing the entrance / exit 11 detect the wall surface and misrecognize that this is an object to be detected, or the door main bodies 3B and 3D. However, it is possible to avoid a situation in which a person is present between the opening edge of the doorway 11 and the entrance / exit 11 but cannot be detected.

(Modification of the second embodiment)
In 2nd Embodiment mentioned above, it was set as the structure which does not attach a starting sensor to the door main body 3. FIG. That is, although not shown in the figure, the start sensor is attached to the eyes or in a vertical position.

  The present invention is not limited to this, and as shown in FIG. 6, a detection area toward the doorway 11 (approach side) may be set as a detection area of the door sensor 7 attached to each door body 3. . That is, in the state shown in FIG. 6, in the door main bodies 3A and 3C that are not at the position facing the doorway 11, the detection area of the door sensor 7 is downstream in the rotation direction of the door main bodies 3A and 3C, as in the case of the second embodiment. Is set only on the side (light projection area C1 indicated by a broken line in FIG. 6).

  On the other hand, in the door main bodies 3B and 3D located at the position facing the entrance / exit 11, the detection area of the door sensor 7 is set to the rotation direction downstream side of the door main bodies 3B and 3D, the vertical peripheral portion of the entrance / exit 11, and the area on the approach side. (Projection areas C2, D and A indicated by broken lines in FIG. 5). That is, it is detected whether or not an object such as a person is present on the downstream side of the rotation direction of the door main bodies 3B and 3D, and the door main bodies 3B and 3D and the entrance / exit even when the door main bodies 3B and 3D rotate as they are. The detection area is set so as to detect whether or not a person is caught between the eleven frames and to detect whether a person is approaching from the approach side.

  As another modification, as shown in FIG. 7, the detection area of the door sensor 7 attached to the surface facing the rotation direction of each door body 3 </ b> A to 3 </ b> D and switching thereof are the same as in the case of the second embodiment. On the other hand, you may make it attach the approach side sensor 6 which projects light toward the outer peripheral side to the edge of the outer edge side of the door main bodies 3A-3D. That is, the approach side sensor 6 is configured to detect whether a person is approaching from the approach side by performing light projection only when the door main bodies 3 </ b> A to 3 </ b> D are rotated to a position facing the entrance / exit 11. ing. For this reason, when door body 3A-3D rotates to the position which does not face the entrance / exit 11, it can avoid detecting a wall surface and misrecognizing that this is an object which should be detected.

  FIG. 8 is a block diagram showing a control system in this modification. As shown in this figure, each of the sensors 6 and 7 is provided with the same area switching means 78 as in the second embodiment. That is, the configuration of the door sensor 7 attached to the surface facing the rotation direction in each of the door main bodies 3A to 3D is the same as that of the second embodiment. The configuration of the approach side sensor 6 that projects light toward the outer peripheral side on the outer edge side of the door main bodies 3A to 3D is a configuration in which the area switching means 68 is provided in the first embodiment. ing.

-Other embodiments-
In each of the above-described embodiments and modifications, the case where the present invention is applied to an automatic swing door and an automatic revolving door has been described. The present invention is not limited to this, and can be applied to an automatic folding door, an automatic flip-up gate door, and the like. FIG. 9 shows a state in which the door sensor 7 according to the present invention is attached to the automatic folding door 1A, where (a) is a closed state and (b) is an open state. FIG. 10 shows a state in which the door sensor 7 according to the present invention is attached to an automatic flip-up gate door 1B installed in a parking lot or the like, where (a) is in a closed state and (b) is in an open state. . Even with these configurations, the door sensor 7 itself detects the opening / closing operation positions of the door main bodies 3A, 3B, and recognizes the opening / closing operation positions of the door main bodies 3A, 3B without receiving door position information from the door drive mechanism. Accordingly, the movement control of the door main bodies 3A and 3B can be performed. In these drawings, the object that should not be detected is the wall surface W in the automatic folding door 1A and the roof R in the automatic flip-up gate door 1B.

  Further, in each of the above-described embodiments and modifications, the case where the present invention is applied to the automatic door 1 has been described. The present invention is not limited to this, and can also be applied to a manual door. For example, when a door sensor according to the present invention is attached to the swing side surface of a manual swing door, and a person is present on the swing side when attempting to open the door from the approach side, a warning sound is emitted. It may be configured to activate a lock mechanism that alerts the user and forcibly prohibits the opening of the door. In the case of a double swing type manual swing door, the door sensor of the present invention is preferably attached to each of the swing side and approach side surfaces of the swing door.

  Furthermore, as the door position detection means 67 and 77, not only a geomagnetic sensor but a gyro sensor can be adopted. That is, any sensor that can detect the rotation angle position by detecting the rotation of the door body may be used.

It is a perspective view of the automatic swing door which concerns on 1st Embodiment, (a) is a door closed state, (b) is a figure which shows a door open state, respectively. It is a side view in the door closed state of an automatic swing door. It is a block diagram which shows the control system of an automatic swing door. It is a top view of the automatic revolving door concerning a 2nd embodiment. It is a block diagram which shows the control system which concerns on 2nd Embodiment. FIG. 6 is a diagram corresponding to FIG. 4 according to a modification of the second embodiment. FIG. 9 is a view corresponding to FIG. 4 according to another modification of the second embodiment. It is a block diagram which shows the control system which concerns on the other modification of 2nd Embodiment. It is a top view at the time of applying this invention to an automatic folding door, Comprising: (a) is a closed state, (b) is a figure which shows an open state, respectively. It is a side view at the time of applying this invention to an automatic flip-up type gate door, Comprising: (a) is a closed state, (b) is a figure which shows an open state, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic swing door 3 Door main body 52 Door controller 6 Approach side sensor 7 Swing side sensor 65,75 Object detection means 66,76 Object determination means 67,77 Door position detection means 68,78 Area switching means

Claims (1)

A door sensor housed in a sensor package that is attached to a door body that can be opened and closed by means other than rotating operation,
Door position detecting means capable of detecting the opening / closing operation position of the door body without receiving door position information from an external device;
Object detection means for detecting the presence or absence of an object in the detection area;
An object determination unit that receives the outputs from the door position detection unit and the object detection unit and determines whether the object detected by the object detection unit is an object to be detected according to the opening / closing operation position of the door body; The door sensor characterized by having.

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