JP3847621B2 - Automatic door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic door that is installed at an entrance of a building and detects a passerby or the like to automatically open and close the door.
[0002]
[Prior art]
In general, an automatic door is provided at the entrance of a building, and the door is automatically opened and closed by detecting an approaching person or the like.
Here, the structure of an automatic door that has been frequently installed in recent years will be described with reference to the example shown in FIG.
[0003]
In the figure, reference numeral 1 denotes a double door type automatic door. The automatic door 1 has a drive unit 2 installed at the upper part of the entrance / exit of the building, and an open / close door 3 that is opened and closed by the drive unit 2. 4 is provided, and the open / close door 3 moves along these fixed plates 4.
In addition, on the front and back of the automatic door 1, an activation sensor 5 that detects an approaching person or object is provided on the upper part thereof. When the activation sensor 5 detects a person or an object, the drive unit 2 is detected. A drive motor (not shown) is driven by a controller provided inside, and the open / close door 3 moves along the fixed plate 4 so that the doorway opens.
[0004]
[Problems to be solved by the invention]
By the way, when the opening / closing door 3 moves along the fixed plate 4 when the passerby or the object approaches and the entrance / exit is opened, the opening / closing that moves when there is a person in the moving area of the opening / closing door 3 or there is an object. There is a risk of the door 3 hitting a person or an object. For this reason, a protective fence surrounding the moving area when the opening / closing door 3 is opened is installed to prevent interference with the opening / closing door 3, but installing such a protective fence only increases the cost significantly. There was also a problem that it looked bad.
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an automatic door that ensures safety when opening and closing the open / close door at low cost while ensuring a good appearance.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, an automatic door according to claim 1, wherein an opening / closing door that opens and closes an entrance / exit, a drive unit that moves the opening / closing door at a predetermined speed to open / close the entrance / exit, and detects an adjacent object. An automatic door having a start sensor that moves and a controller that moves the open / close door by controlling the drive unit based on a detection signal from the start sensor, wherein the open / close door moves to open the doorway When the controller determines that an object has entered the movement area based on a detection signal from the detection sensor. The drive unit is controlled to move the open / close door at a speed lower than the predetermined speed.
[0007]
As described above, when an object such as a person or an object enters the moving area of the opening / closing door when the opening / closing door moves and the doorway is opened, the object is detected by the detection sensor, and the moving speed of the opening / closing door is detected by the controller. The person who entered the moving area of the open / close door can leave the moving area without hitting the open / close door, and the person who brings the object close to the moving area can open / close the object. It is possible to move away from the moving area without hitting the door.
At this time, since the opening / closing door moves at a low speed without stopping, the entrance / exit is also opened reliably so that a passerby who is about to pass through the entrance / exit collides with the opening / closing door. Can be reliably prevented.
[0008]
The automatic door according to claim 2 is the automatic door according to claim 1, wherein the detection sensor is an optical sensor that detects the presence or absence of an object by detecting reflected light of light irradiated to the moving region. It is said.
In other words, as the detection sensor, an optical sensor with excellent detection capability for detecting the presence or absence of an object based on reflected light is used, so that the entry of the object into the moving area of the open / close door is reliably detected, and further safety is achieved. Improvement is achieved.
[0009]
The automatic door according to claim 3 is the automatic door according to claim 1 or 2, wherein the opening / closing door is slidable laterally along the doorway, and the opening / closing door is slid to slide the opening / closing door. The doorway is opened and closed. In this way, the door is slid at a low speed due to the entry of the object into the moving area of the opening / closing door, so the trouble caused by a person or an object hitting the opening / closing door that slides and moving is eliminated, and the sliding door type automatic Safety at the door is improved.
[0010]
According to a fourth aspect of the present invention, there is provided the automatic door according to the first or second aspect, wherein the open / close door is swingable about a vertical axis at a side portion of the doorway, and the open / close door is The doorway is opened and closed by swinging.
In other words, the opening / closing door is swung at a low speed by the entry of an object into the moving area of the opening / closing door. Safety at the door is improved.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an automatic door according to an embodiment of the present invention will be described with reference to the drawings.
In FIG.1 and FIG.2, the code | symbol 11 is the automatic door of this embodiment. The automatic door 11 has a drive unit 12 installed at the upper part of the entrance / exit of the building, and an open / close door 13 that is opened / closed sideways along the entrance / exit by the drive unit 12. Fixing plates 14 are provided on both sides of the door, and the open / close door 13 moves along the fixing plates 14.
[0012]
On the front and back of the automatic door 11, an activation sensor 15 for detecting a person or an object approaching is provided on the upper portion thereof. When the activation sensor 15 detects a person or an object, the activation sensor 15 is provided in the drive unit 12. A drive motor 23 is driven by a controller 22 which will be described later, and the opening / closing door 13 moves along the fixed plate 14 so that the doorway opens.
[0013]
In addition, a detection sensor 21 such as an optical sensor is provided at the upper part of the movement area A of the open / close door 13 when the open / close door 13 is opened. The presence or absence of an object in the moving area A is detected.
[0014]
Next, the function of the automatic door 11 having the above structure will be described with reference to a functional block diagram shown in FIG.
In the figure, reference numeral 22 denotes a controller installed in the drive unit 12. The controller 22 is connected to activation sensors 15 provided on the upper and lower sides of the automatic door 11, and a detection signal is transmitted from these activation sensors 15.
[0015]
The controller 22 is connected to a detection sensor 21 that detects the presence or absence of an object in the moving area A of the open / close door 13, and a detection signal is transmitted from the detection sensor 21.
A power unit (drive unit) 24 that supplies drive power to a drive motor (drive unit) 23 is connected to the controller 22, and drive power supplied from the power unit 24 to the drive motor 23 by a control signal from the controller 22 is connected. To be controlled.
[0016]
According to the automatic door 11 as described above, when an object such as a passerby approaches and enters an activation area B (see FIG. 2) that can be detected by the activation sensor 15, the activation sensor 15 detects the object, The detection signal is transmitted to the controller 22.
[0017]
When the detection signal is transmitted from the activation sensor 15, the controller 22 outputs a control signal to the power unit 24 to open the open / close door 13, and supplies drive power from the power unit 24 to the drive motor 23.
Thereby, the drive motor 23 is driven, the opening / closing door 13 is moved at a predetermined speed set in advance, and the entrance / exit is opened, and the passage through the entrance / exit becomes possible.
[0018]
Here, when an object such as a person or an object enters the moving area A of the opening / closing door 13 when the opening / closing door 13 is moved and the doorway is opened as described above, the object is detected by the detection sensor 21. The detection signal is transmitted to the controller 22.
Thus, when the detection signal is transmitted from the detection sensor 21, the controller 22 determines that an object such as a person or an object has entered the movement area A, and transmits the control signal to the power unit 24 in the slow mode. .
When a control signal is output from the controller 22 to the power unit 24 in the slow mode, the drive power from the power unit 24 to the drive motor 23 is reduced, and the moving speed of the open / close door 13 is lower than the predetermined speed described above. Moved.
[0019]
That is, since the open / close door 13 is moved at a low speed, a person who has entered the moving area A of the open / close door 13 can leave the moving area A without hitting the open / close door 13, A person who has approached the object can move the object away from the moving area A without hitting the door 13.
At this time, since the opening / closing door 13 moves at a low speed, that is, slowly, without stopping, the entrance / exit is also opened reliably, and a passerby who is going to pass through the entrance / exit is expected to open / close the door 13. There is no such thing as a collision.
[0020]
Thus, according to the automatic door 11 described above, when an object such as a person or an object enters the moving area A of the opening / closing door 13 when the opening / closing door 13 moves and the doorway is opened as described above. Since the object is detected by the detection sensor 21 and the moving speed of the open / close door 13 is lowered by the controller 22, a person who has entered the moving area A of the open / close door 13 does not hit the open / close door 13. A person who can move away from A and bring an object close to the moving area A can move away from the moving area A without hitting the door 13.
[0021]
At this time, since the opening / closing door 13 moves at a low speed without stopping, the entrance / exit is also opened reliably, and a passerby who is about to pass through the entrance / exit is expected to open / close the door 13. It is possible to reliably prevent such a trouble as to collide.
[0022]
That is, as compared with the case where the protective fence is installed so as to surround the moving area A of the opening / closing door 13, the safety at the time of opening / closing the opening / closing door 13 is ensured at a low cost while ensuring a good appearance and smooth. Allows traffic.
In addition, since the detection sensor 21 is an optical sensor having excellent detection capability for detecting the presence or absence of an object based on reflected light, it is possible to reliably detect the entry of the object into the moving area A of the open / close door 13. It is possible to further improve safety.
[0023]
In the above example, the double opening type in which the pair of opening / closing doors 13 is moved to open / close the entrance / exit has been described as an example, but the present invention is also applicable to the single opening type in which the opening / closing door is opened / closed by moving the single opening / closing door 13. Further, instead of the sliding door type in which the opening / closing door 13 is slid along the fixed plate 14 as described above, the opening / closing door type swings the opening / closing door 13 about the vertical axis at the side of the entrance / exit. Of course, it can also be adapted to.
[0024]
【The invention's effect】
As described above, according to the automatic door of the present invention, the following effects can be obtained.
According to the automatic door of claim 1, when an object such as a person or an object enters the moving area of the opening / closing door when the opening / closing door is moved and the doorway is opened, the object is detected by the detection sensor, Because the controller moves the opening / closing door at a low speed, a person who enters the moving area of the opening / closing door can leave the moving area without hitting the opening / closing door, and also brings an object closer to the moving area. A person can move the object away from the moving area without hitting the door.
At this time, since the opening / closing door moves at a low speed without stopping, the entrance / exit is also opened reliably so that a passerby who is about to pass through the entrance / exit collides with the opening / closing door. It is possible to surely prevent a malfunction.
In other words, compared to the case where a protective fence is installed so as to enclose the moving area of the open / close door, it is possible to ensure smooth appearance and ensure safety when opening and closing the open / close door at a low cost while ensuring a good appearance. It can be.
[0025]
According to the automatic door of the second aspect, since an optical sensor having an excellent detection capability for detecting the presence or absence of an object based on reflected light is used as the detection sensor, the object enters the moving area of the open / close door. It can be detected reliably, and the safety can be further improved.
[0026]
According to the automatic door of the third aspect, since the opening / closing door is slid at a low speed by the entry of the object into the moving area of the opening / closing door, there is a problem caused by a person or an object colliding with the opening / closing door that slides and moves. It is possible to provide a sliding door type automatic door with high safety that has been eliminated.
[0027]
According to the automatic door of the fourth aspect, since the opening / closing door is swung at a low speed by the entry of an object into the moving area of the opening / closing door, a person or an object collides with the opening / closing door that moves while swinging. It can be made into the safe door type automatic door which the malfunction was eliminated.
[Brief description of the drawings]
FIG. 1 is a schematic front view of an automatic door for explaining a schematic configuration of an automatic door according to an embodiment of the present invention.
FIG. 2 is a schematic plan view of the automatic door for explaining a schematic configuration of the automatic door according to the embodiment of the present invention.
FIG. 3 is a functional block diagram illustrating functions of an automatic door according to an embodiment of the present invention.
FIG. 4 is a perspective view of an automatic door for explaining the configuration and structure of a general automatic door.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Automatic door 13 Opening / closing door 15 Starting sensor 21 Detection sensor 22 Controller 23 Drive motor (drive part)
24 Power unit (drive unit)
A moving area

Claims (4)

An open / close door that opens and closes the entrance / exit, a drive unit that moves the open / close door at a predetermined speed to open / close the entrance / exit, an activation sensor that detects an adjacent object, and the drive based on a detection signal from the activation sensor An automatic door having a controller for moving the opening and closing door by controlling a part,
A detection sensor that detects an entry of an object into a moving area of the open / close door when the open / close door moves to open the doorway;
When the controller determines that an object has entered the movement area based on a detection signal from the detection sensor, the controller drives the drive unit to move the open / close door at a speed lower than the predetermined speed. An automatic door that is controlled by reducing power .   The automatic door according to claim 1, wherein the detection sensor is an optical sensor that detects the presence or absence of an object by detecting reflected light of light applied to the moving region.   3. The automatic door according to claim 1, wherein the door is slidable laterally along the doorway, and the doorway is opened and closed by sliding the door.   2. The door according to claim 1, wherein the door is swingable about a vertical axis at a side portion of the doorway, and the doorway is opened and closed by swinging the door. Item 3. The automatic door according to item 2.

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