JPH0762948A - Noncontact type automatic opening/closing door - Google Patents

Abstract

PURPOSE:To provide a noncontact type automatic opening/closing door operated only when a person wants to open or close a door and capable of being operated sanitarily and simply. CONSTITUTION:A U-shaped detector 3 is installed on a wall face near the handle 2 of a door 1 so that both ends are protruded forward and vertically face to each other. When the light emitted from a light emitting diode stored in an upper projection 5 reaches a light emitting diode stored in a lower projection 6, a control circuit judges that the light is interrupted by an object and outputs the drive control signal to a door drive device 4, and the door 1 is opened or closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact type automatic opening / closing door which detects the presence or absence of a person or an object and controls opening / closing of the door accordingly.

[0002]

2. Description of the Related Art Conventionally, this kind of non-contact type automatic opening / closing door has been provided with various detecting means for detecting the presence of a person or an object. For example, as shown in FIG. 5, an opening / closing controller 51 that detects infrared rays emitted from a human body and outputs a command signal to open / close the door 50 is provided above the door 50. Also, there is a door 5 in the wall above the door.
A drive device for opening and closing 0 is provided, and the door 50 can be opened and closed in the direction of the arrow in the drawing in accordance with the command signal.

As another method, the weight of a person or an object placed on a foot switch installed on the floor is detected by weight, and the drive device is driven accordingly to open or close the door. There was something.

Further, there has been a device which detects that the handle portion of the door is touched by the hand and opens and closes the door accordingly.

[0005]

However, among the various detection methods described above, in the method of detecting infrared rays and the method of detecting weight with a foot switch, even if there is no intention to open the door, There is a problem that the door opens and closes because the detection means detects them just by passing in front. Further, the method of detecting that the handle portion is touched by the hand has a problem that it is unsanitary because various people touch the handle portion.

The present invention has been made to solve the above-mentioned problems, and is a non-contact type automatic opening / closing operation which operates only when a person tries to open / close a door and is hygienic and easy to operate. The purpose is to provide a door.

[0007]

In order to achieve this object, the non-contact type automatic opening / closing door of the present invention has a detectable area in a predetermined space, and an object exists in the detectable area. The detection means includes a detection means and an opening / closing means that opens and closes the door according to the detection result of the detection means. The detection means is installed or configured so that an object does not accidentally enter the detection area.

[0008]

The detecting means in the non-contact type automatic opening / closing door of the present invention having the above structure detects the presence of an object in the detectable area, and the opening / closing means opens / closes the door according to the detection result.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, the structure of the non-contact type automatic opening / closing door of this embodiment will be described with reference to FIGS. 1 to 4.

A detector 3 for detecting the presence / absence of an object is provided on a wall near the handle 2 installed on the door 1, and a motor, a reduction gear, etc. are provided inside the door 1 at an upper portion thereof. A door drive device 4 is provided which is capable of opening and closing the door.

Here, the structure of the detector 3 will be described in detail. As shown in FIG. 2, the detector 3 has a U-shaped outer side made of resin or metal.
It is installed on the wall so that both ends are vertically opposed and project forward. The light emitting diode 7 is built in the upper projecting portion 5 and the light receiving diode 8 is built in the lower projecting portion 6 among the projecting end portions, and both are arranged so as to face each other. The emitted light can be received by the light receiving diode 8.

Further, a control circuit 9 composed of a microcomputer or the like is built in the inside of the detector 3, and this control circuit 9 determines whether or not an object exists between the light emitting diode 7 and the light receiving diode 8. Is determined, and if there is, a drive signal for opening the door is output to the door drive device 4 for a certain period of time.

Here, the detector 3 is installed at almost the same height as the handle 2, and basically, the user shuts off the light emitted from the light emitting diode 7 by hand so that the light receiving diode 8 cannot receive it. You can do it.

In the present embodiment, the detector 3 corresponds to the detecting means of the present invention, and the door driving device 4 corresponds to the opening / closing means of the present invention.

Next, the operation of the non-contact type automatic opening / closing door configured as described above will be described. The symbols S1 to S8 shown in the flowchart of FIG. 4 represent each step.

First of all, the door 1 is normally kept closed when no one is trying to open it, and the light emitted from the light emitting diode 7 of the detector 3 is interrupted on the way. Without reaching the light receiving diode 8. In this state, when a person tries to open the door and puts his / her hand between the light emitting diode 7 and the light receiving diode 8, the light emitted from the light emitting diode 7 is blocked and does not reach the light receiving diode 8, and the control circuit 9 Detects it (S1).

Next, the control circuit 9 outputs a drive control signal for opening the door to the door drive device 4 (S2),
After continuing it for a time long enough for the door 1 to fully open (S
3) and stop (S4). Then, after waiting for a preset time sufficient for the person to pass through the door (S5), the control circuit 9 outputs a drive control signal for closing the door 1 to the door drive device 4 ( S6), it continues for a sufficient time to close the door 1 (S7), and then stops (S8). After that, the light emitting diode 7 of the detector 3 is again detected.
The current state, that is, the state in which the door 1 is closed is maintained until the light emitted from the light source is prevented from reaching the light receiving diode 8.

As described above, the detector 3 is provided at almost the same height as the handle of a normal door, but between the upper protrusion 5 and the lower protrusion 6, a user's hand or an object is not detected. The door will not open or close unless it is consciously inserted. Therefore, the door does not open and close even if a person passes by in the vicinity of the detector, and the door does not open accidentally.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention.

For example, although the detector is provided on the wall next to the door in this embodiment, it may be provided near the handle on the door or instead of the door. Further, the direction of light for detecting the presence of an object may be any direction such as from bottom to top or in the lateral direction as long as it is unlikely to be erroneously blocked.

Further, in the present embodiment, the presence of an object is detected by blocking the transmitted light. However, the non-existence is also detected by the reflection of ultrasonic waves in a specific area or the detection of infrared light emitted from the human body. It is possible to detect in the state of contact. Further, in the present embodiment, the type in which the door slides in the lateral direction has been described as an example, but a door that opens so that the locus of movement becomes a fan shape may be installed.

In addition, the present invention is applicable to a wide variety of doors.
Initially, it can be installed at any time, not only on the way.

[0024]

As is apparent from the above description, the non-contact type automatic opening / closing door of the present invention has a detectable area in a predetermined space and detects the presence of an object in the detectable area. A detection means, and an opening / closing means for opening and closing the door according to the detection result of the detection means.
Since the object is installed or configured so as not to accidentally enter the detection area, it operates only when a person tries to open and close the door, and it is hygienic and easy to operate.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a non-contact type automatic opening / closing door of the present invention.

FIG. 2 is a diagram showing an outline of a configuration of a detector provided in the non-contact type automatic opening / closing door shown in FIG.

FIG. 3 is a block diagram showing an electrical configuration of a main part of this embodiment.

FIG. 4 is a flowchart showing the operation of this embodiment.

FIG. 5 is a perspective view showing an appearance of a conventional non-contact type automatic opening / closing door.

[Explanation of symbols]

 1 Door 3 Detector 4 Door drive device 5 Upper protrusion 6 Lower protrusion

Claims (1)

[Claims] 1. A detection means having a detectable area in a predetermined space and detecting the presence of an object in the detectable area, and an opening / closing means for opening and closing a door according to the detection result of the detection means. A non-contact type automatic opening / closing door, characterized in that the detection means is installed or configured so that an object does not accidentally enter the detection area.