JPH06193338A - Automatic door - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose is to provide an automatic door that makes the light control glass transparent by energizing the liquid crystal layer of the light control glass when the passerby detection means detects a passerby. It is the one we are trying to provide. A door 51 that opens and closes an opening, a passerby detection unit 52 that detects a passing body approaching the door, an opening / closing drive unit 53 that opens and closes the door 51, and a passerby detection unit 52.
Door opening / closing control means 54 for controlling the opening / closing driving means 53 so as to open the door 51 when the detection signal of
In the automatic door 17 including the light control glass 55 having the liquid crystal layer which is fitted into the transparent substrate 1 and becomes transparent when energized, the door 51
Position detection means 1 for detecting that the vehicle has reached the closed position of the opening portion, and when there is a detection signal from the passerby detection means 52, the liquid crystal layer of the light control glass 55 is energized to detect the closed position detection means. The dimming glass control means 2 is provided to cut off the energization to the liquid crystal layer of the dimming glass 55 when the closed position detection signal 1 is received.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door in which a light control glass having a liquid crystal layer which becomes transparent when energized is fitted, and particularly when a passerby approaches the door, the liquid crystal layer of the light control glass is removed. The present invention relates to an automatic door that is made transparent by turning on the light control glass by turning on electricity.

[0002]

2. Description of the Related Art As a conventional automatic door in which a light control glass having a liquid crystal layer which becomes transparent when energized is fitted, the one shown in FIG. 5 is known. In FIG. 5, 51 is a door and 52
Is a passerby detecting means, 53 is an opening / closing driving means, 54 is a door opening / closing control means, 55 is a light control glass, and 56 is a switching operation means.

The door 51 is a hanging metal fitting 60/61 for holding a door roller 59 which is movably fitted on a rail 58 provided in a seamless space above an opening which is an entrance / exit of a building.
Is attached to the upper end, and the upper end of the hanging metal fitting 60 is attached to the timing belt 64 of the opening / closing drive means 53, and the opening / closing drive means 53 opens and closes the opening of the entrance of the building. The passerby detection means 52 is provided both inside and outside the door before the door 51, and when a passerby or the like enters the detection range shown in the figure, it sends a detection signal of the passerby or the like to the door opening / closing control means 54.

The opening / closing drive means 53 is provided in a seamless space above the door 51, and has a drive pulley 62, a driven pulley 63, and
The timing belt 64 spans both pulleys, and a drive device 65 that drives the drive pulley 62.
In response to an opening command from the door opening / closing control means 54, the driving device 65 rotates the driving pulley 62 in the direction of arrow 66, and accordingly, the timing belt 64 moves in the direction of arrow 67 to open the door 51. When the opening command from the door opening / closing control means 54 disappears,
The drive device 65 moves the drive pulley 6 in the direction opposite to the direction of the arrow 66.
2 is rotated and the door 51 is closed. The door opening / closing control means 54
When there is a detection signal from the passerby detection means 52, the door 51
The opening / closing drive means 53 is controlled so as to open.

The light control glass 55 has a liquid crystal layer which becomes transparent when energized and is fitted into the door. Switching operation means 56
Is a change-over switch or the like, which switches the energization of the liquid crystal layer of the light control glass as desired.

In such a conventional automatic door 68, the door 51 is usually closed at the opening which is the entrance and exit of the building, and is detected when the passerby detecting means 52 detects the approach of the passerby or the like to the door. A signal is sent to the door opening / closing control means 54, the door opening / closing control means 54 sends an opening command to the opening / closing drive means 53, and the opening / closing drive means 53 fits the door 51 and moves it to the door 57 side to open the opening. When the opening command from the door opening / closing control means 54 disappears, the opening / closing drive means 53 returns the door 51 to the closed position.

On the other hand, the light control glass 55 is switched between transparent and opaque by energizing the liquid crystal layer of the light control glass with a change-over switch or the like, which is a change-over operation means 56, as desired.

[0008]

However, in the conventional automatic door as described above, the door 51 is opened and closed and the light control glass 55 is used.
Since switching between transparent and opaque is performed irrespectively, even when a passerby exists both inside and outside the door 51 when the liquid crystal layer of the light control glass is cut off and becomes opaque. Both cannot confirm each other's existence. Therefore, the door 5
When 1 is opened, there is a problem that it becomes a match.

The present invention has been made in view of the above problems,
It is an object of the present invention to provide an automatic door that makes the light control glass transparent by energizing the liquid crystal layer of the light control glass when the passerby detection means detects a passerby or the like.

[0010]

In order to achieve the above object, an automatic door of the present invention includes a door that opens and closes an opening, a pedestrian detection means that detects a passing body approaching the door, and the door. An opening / closing drive means for opening / closing, a door opening / closing control means for controlling the opening / closing drive means so as to open the door when there is a detection signal of the passerby detection means, and a liquid crystal layer fitted into the door and transparent when energized. In an automatic door provided with a light control glass having, a closed position detection means for detecting that the door has reached a closed position of an opening, and a light control glass of the light control glass when there is a detection signal of the passerby detection means. A light control glass control means is provided for energizing the liquid crystal layer and cutting off the power supply to the liquid crystal layer of the light control glass when there is a closed position detection signal from the closed position detection means.

[0011]

The closed position detecting means for detecting that the door has reached the closed position of the opening, and the liquid crystal layer of the light control glass is energized when there is a detection signal of the passerby detecting means, and the closed position detecting means When a dimming glass control means for cutting off the power supply to the liquid crystal layer of the dimming glass is provided when there is a closed position detection signal, when the passerby detecting means detects a passerby approaching the door, the liquid crystal layer of the dimming glass is detected. Is energized and becomes transparent. When the passage is completed and the door is closed, the liquid crystal layer of the light control glass is de-energized and becomes opaque again.

[0012]

Embodiments of the present invention will be described with reference to the drawings. First, the structure of the automatic door of the present invention will be described with reference to FIGS. 3 and 4, and later, the device arrangement of the automatic door of the present invention and the operation thereof will be described with reference to FIGS. 1 and 2. FIG. 3 shows an automatic door 1 of the present invention.
7 is a partial front sectional view, and FIG. 4 is a sectional view taken along line AA of FIG. It should be noted that the reference numerals 51 to 67 have the same functions as in the conventional case, and therefore the description thereof will be omitted.

As shown in FIG. 4, the equipment inside the blind 9 is fitted through a mounting plate 13 having an engaging portion with the equipment.
Is attached to and retained on the inner wall 12 of the. For example, the rail 58 is attached to the engaging portion 13a of the mounting plate via the bolt 15, the supporting plate 6 of the power feeding device 3 is fitted into the engaging portion 13b of the mounting plate, and the mounting plate 13 is blind. It is attached to the inner wall 12 of the
Held in.

In FIG. 3, 1 is a closed position detecting means, 2 is a light control glass control means, and 3 is a power feeding device. As shown in FIG. 4, the closed position detecting means 1 includes the magnet 10 provided on the hanging metal fitting 61 and the inner wall of the blind 9 so as to be in a position close to the magnet 10 when the door 51 comes to the closed position. 12 and a reed switch 11 provided in 12. When the door 51 comes to the closed position, the magnet 10 closes the reed switch 11 and sends a closed position detection signal to the light control glass control means 2.

The light control glass control means 2 is provided on the mounting plate 13 in the blind 9, and when the detection signal of the passerby detection means 52 is received, the liquid crystal layer of the light control glass 55 is energized to detect the closed position detection means. When there is a closed position detection signal of 1, the power supply to the liquid crystal layer of the light control glass 55 is cut off.

The power feeding device 3 is a power feeding device for the light control glass having a liquid crystal layer which becomes transparent when the door 51 is energized. The power feeding device 3 is a guide member 4 for connecting a plurality of boxes to accommodate an electric wire and a hanging metal fitting 6.
0, a connecting plate 5 attached to the inner wall 12 of the blind 9, and two guide plates 4 having one end fixed to the connecting plate 5 when the door 51 moves in the opening direction. The rail 7 is fixed to two support plates 6 that are regulated in 16 directions.

Next, referring to FIGS. 1 and 2, the closed position detecting means 1 and the passerby detecting means 5 in the automatic door 17 of the present invention.
The connection of No. 2 to the light control glass control means 2 and its operation will be described. FIG. 2 is a diagram showing a switching timing of energization to the liquid crystal layer of the light control glass 55 in the automatic door 17 of the present invention.

The closed position detecting means 1 has the magnet 10 as described above.
And reed switch 11, and reed switch 1
1 is connected to the interlocking control section of the light control glass control means 2. When the door 51 reaches the closed position, the magnet 10 approaches the reed switch 11, and the reed switch 11 closes and sends a closed position detection signal to the interlocking control section of the light control glass control means 2. The passerby detection unit 52 is connected to the interlocking control unit of the light control glass control unit 2 and the door opening / closing control unit 54 as in the conventional case, and when a passerby is detected within the detection range inside and outside the front surface of the door 51, The detection signal is sent to the interlocking control section of the light control glass control means 2 and the door opening / closing control means 54 as in the conventional case.

The light control glass control means 2 includes a light control glass 55.
Signal from the pedestrian detection means 52 and the closed position detection means 1, a transparent control section that keeps the liquid crystal layer energized and keeps the light control glass 55 transparent, a flicker control section that switches between transparent and opaque every second. Based on the above, the liquid crystal layer of the light control glass is energized when there is a detection signal of the passerby detection means, and the energization of the liquid crystal layer of the light control glass is cut off when there is a closed position detection signal of the closed position detection means. A control unit, a switching unit that switches energization to the liquid crystal layer of the light control glass 55 by a command from the control units, and a command from the changeover switch 56 that is a conventional switching operation unit, and a voltage based on the switching unit. And a voltage output section for outputting

In the interlocking control section, as shown in FIG. 2, at the same time when the detection signal of the passerby detecting means 52 is inputted, the light control glass 5
A command is issued to the switching portion to energize the liquid crystal layer of No. 5 (point B in the figure), and when the closed position detection signal from the closed position detection means 1 is input, it is delayed for a while (T seconds), and the light control glass 55 is turned off. A command is issued to the switching unit to cut off the power supply to the liquid crystal layer (C in the figure).
point). Further, when the detection signal of the passerby detection means 52 and the closed position detection signal from the closed position detection means 1 are simultaneously input, the detection signal of the passerby detection means 52 has priority.

The door opening / closing control means 54 is the same as the conventional one, and when the passerby detection signal from the passerby detection means 52 is input to the arithmetic section, the opening / closing drive means 53 moves in the direction to open the door 51. It commands the output to drive. Then, based on the command, a signal is input from the output unit to the opening / closing driving means 53, and the opening / closing driving means 53 opens the door 51 with a slight delay from the signal. The signal is returned to the arithmetic unit via the encoder 8 provided in the drive device 65 of the opening / closing drive means 53.

The automatic door 17 of the present invention in which the closed position detecting means 1 and the passerby detecting means 52 are connected to the light control glass control means 2 as described above is used when the light control glass 55 is opaque. When a passerby stands in the detection range of the passerby detection means 52 inside and outside the front of the door 51, the passerby detection means 52 sends a passerby detection signal to the interlocking control section of the light control glass control means 2 and the door as in the conventional case. It is sent to the opening / closing control means 54. Then, the interlocking control section of the light control glass control means 2 issues an energization command to the liquid crystal layer of the light control glass 55 to the switching section at the same time as the passerby detection signal to make the light control glass 55 transparent. On the other hand, in the door opening / closing control means 54, the door opening / closing drive means 53 is connected to the door 51 as in the conventional case.
It issues a command to drive in the direction to open. Then, passers-by inside and outside in front of the door 51 can confirm the existence of each other.

When the passage ends and the passerby detection signal disappears, the door opening / closing control means 54 issues a command to the opening / closing drive means 53 to drive the door 51 in the closing direction, and closes the door 51. Then, when the door 51 reaches the closed position, the magnet 10 of the closed position detection means 1 approaches the reed switch 11 to close the reed switch 11, and sends a closed position detection signal to the interlocking control section of the light control glass control means 2. . Light control glass control means 2
In the interlocking control unit of (1), after a while from the closed position detection signal (T seconds), the switching unit is instructed to cut off the energization of the liquid crystal layer of the light control glass 55 to make the light control glass 55 opaque.

As described above, the automatic door 17 of the present invention is dimmed when there is a detection signal from the closed position detecting means 1 for detecting that the door 51 has reached the closed position of the opening and the passerby detecting means 52. By providing the dimming glass control means 2 which energizes the liquid crystal layer of the glass 55 and cuts off the energization of the liquid crystal layer of the dimming glass 55 when there is a closed position detection signal from the closed position detection means 1.
Light control glass 5 when the passerby detection means 1 detects a passerby or the like
When the liquid crystal layer 5 is made transparent by energizing, the passage is completed and the door is closed and the closed position detecting means 1 detects the closing, the light control glass 55
Turn off the power to the liquid crystal layer of to make the original opaque state again,
Even when the liquid crystal layer is de-energized and the light control glass is opaque, it is possible to confirm the presence of passers-by both inside and outside the door. When they do, they don't bother each other.

Further, in this embodiment, the conventional automatic door 68 is
The magnet 10 and the reed switch 11 as the closed position detecting means 1 are provided on the conventional door 51, and the light control glass control section 2 is provided by connecting the closed position detecting means 1 and the conventional passerby detecting means 52. Therefore, it is easy to improve the automatic door 17 of the present invention by utilizing the conventional automatic door 68 that has already been produced.

In the above embodiment, the closed position detecting means 1 is composed of the magnet 10 and the reed switch 11, but it is based on the encoder 8 provided in the driving device 65 which is the opening / closing driving means 53. The closed state of the door 51 may be detected.

[0027]

According to the automatic door of the present invention, the closed position detecting means for detecting that the door has reached the closing position of the opening and the liquid crystal layer of the light control glass when there is a detection signal of the passerby detecting means. When a passerby detecting means detects a passerby or the like by providing a light control glass control means that energizes and cuts off the power supply to the liquid crystal layer of the light control glass when there is a closed position detection signal of the closed position detection means. The liquid crystal layer of the light control glass is energized to make it transparent, and when the passage is completed and the door is closed and the closed position detecting means detects the closing, the power supply to the liquid crystal layer of the light control glass is cut off and the original opaque state is restored. As a result, even when the power to the liquid crystal layer was cut off and the light control glass was opaque, it was possible to confirm that there were passers-by both inside and outside the door, so the door opened. Sometimes both don't play against each other.

[Brief description of drawings]

FIG. 1 is a device layout view showing an automatic door of the present invention.

FIG. 2 is a time chart showing switching timing of energization to the liquid crystal layer of the light control glass in the automatic door of the present invention.

FIG. 3 is a partial front sectional view showing the structure of the automatic door of the present invention.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a device layout view showing a conventional automatic door.

[Explanation of symbols]

 17 automatic door 1 closed position detecting means 2 light control glass control means 51 door 52 passerby detection means 53 opening / closing drive means 54 door opening / closing control means 55 light control glass 56 switching operation means

Claims (1)

[Claims] 1. A door that opens and closes an opening, a passerby detection unit that detects a passing body approaching the door, an opening and closing drive unit that opens and closes the door, and a detection signal from the passerby detection unit. In an automatic door provided with a door opening / closing control means for controlling the opening / closing drive means so as to open the door, and a light control glass having a liquid crystal layer fitted into the door and becoming transparent when energized,
Closed position detection means for detecting that the door has reached the closed position of the opening, and when there is a detection signal of the passerby detection means, the liquid crystal layer of the light control glass is energized, and the closed position detection means An automatic door characterized in that a light control glass control means is provided for cutting off the power supply to the liquid crystal layer of the light control glass when there is a closed position detection signal.