JP2547971Y2 - Window glass opening and closing control device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a window glass opening / closing control device for automatically controlling the opening / closing of a window glass of a vehicle or the like.

[0002]

2. Description of the Related Art Conventionally, this kind of technology is disclosed in
The one disclosed in Japanese Patent Publication No. 2420 is known. In this apparatus, an optical sensor is provided so as to detect an obstacle present when the window glass is moved in the closing direction, and the optical sensor detects an object sandwiched between the window glass and detects the optical sensor at a predetermined timing. It was configured to determine whether the windowpane was fully closed depending on the state.

[0003]

However, the above-mentioned prior art employs means for measuring a predetermined timing, for example, means such as a synchronization signal generation circuit and a synchronization detection circuit, in order to determine whether or not the window glass is fully closed. Needed. In addition, there is a possibility that a predetermined timing is shifted due to radio noise or the like.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and reduces the number of, for example, three.
Provided is a windowpane opening / closing control device for performing full-closed detection and pinch detection of a windowpane by a combination of two optical elements. And in order to achieve the purpose,
A window glass having a reflecting portion on an outer peripheral surface, a first optical element provided on a side wall surface of a window frame supporting the window glass, and a first optical element provided on a side wall surface of the window frame facing the first optical element, and A second optical element having an optical axis coincident with the first optical element when the window glass is opened, and a second optical element arranged adjacent to at least one of the first optical element and the second optical element, and a window when the window glass is fully closed. A window glass opening / closing control device, comprising: a third optical element having an optical axis coincident with at least one of the first optical element and the second optical element via the reflecting portion of glass. .

[0005]

1 to 4 show a first preferred embodiment of the present invention. Reference numeral 1 denotes a window glass of the vehicle 2, and an outer peripheral surface 1a of the window glass 1 has a reflecting portion 1b as shown in FIG.
Having. Reference numerals 3, 4, and 5 are first, second, and third optical elements. The first optical element 3 is formed of a light emitting diode, and is provided on a side wall surface 2b of a window frame 2a that supports the window glass 1. The second optical element 4 is composed of a phototransistor,
It is provided on a side wall surface 2b of the window frame 2a facing the first optical element 3. The optical axis of the second optical element 4 coincides with that of the first optical element 3 when the window glass 1 is opened. The third optical element 5 is composed of a phototransistor and is disposed adjacent to the first optical element 3. The third optical element 5 includes the window glass 1.
When the window glass 1 is fully closed, the first
The optical axis coincides with the optical element 3.

The first, second and third optical elements 3, 4 and 5 are connected to a control circuit 6 as shown in FIG. The control circuit 6 operates the motor 8 and the first optical element 3 in response to a signal from the power window switch 7 and receives a signal from the second optical element 4 and the third optical element 5 to operate the motor 8.
Is stopped or reversed, and is connected and configured by an arithmetic unit 6a, a driving unit 6b, a transistor 6c, and resistors 6d to 6g. The power window switch 7 is a neutral return type switch, and includes a movable contact 7a, a window glass 1
It has a fixed contact 7b on the closed side and a fixed contact 7c on the open side. In addition, 9 is a DC power supply.

Next, the operation of the first embodiment will be described with reference to a flowchart shown in FIG. This flowchart is
It explains a part of the program stored in the calculation unit 6a, and shows the closing mode of the window glass 1. First,
In step 101, it is determined whether or not the power window switch 7 has been turned ON to the window glass 1 closing side, and YES
Then, the process proceeds to step 102. In step 102,
It is determined whether or not the third optical element 5 is ON. If the determination is YES, the process proceeds to step 103, and if the determination is NO, the process proceeds to step 105. For example, when the window glass 1 is almost fully closed, the light beam 11 from the first optical element 3 is reflected by the reflecting portion 1 b of the window glass 1 and enters the third optical element 5. Is YES. When the window glass 1 is in the open state, the light beam 11 from the first optical element 3
Does not enter the third optical element 5, and the determination in step 102 is NO.

In step 103, the second optical element 4 is turned on
It is determined whether or not this is the case. If the determination is YES, the process proceeds to step 101; Third optical element 5
When both the second optical element 4 and the second optical element 4 are in the ON state, the determination in step 103 is YES. In this case, the closing of the window glass 1 is incomplete or malfunctioning. It will return. In step 104, the motor 8 is stopped by detecting that the window glass 1 is fully closed.

On the other hand, if the determination in step 102 is NO, it is determined in step 105 whether or not the second optical element 4 is ON.
Proceed to 6 and proceed to 107 if NO. If the third optical element 5 is in the OFF state and the second optical element 4 is in the ON state, the determination in step 105 is YES. In this case, there is no foreign substance between the window glass 1 and the window frame 2a. And the closing operation of the window glass 1 is continued in step 106.

If both the third optical element 5 and the second optical element 4 are OFF, the determination in step 105 is NO.
However, in this case, it is indicated that a foreign substance exists between the window glass 1 and the window frame 2a, and there is a danger of causing a pinching accident. In step 107, the motor 8 is reversed by a predetermined amount. That is, the window glass 1 is obtained in step 107.
Is closed and the window glass 1 is opened by a predetermined amount. As the light beam 11 derived from the first optical element 3, a coded light signal can be used in order to prevent a malfunction due to an extraneous light beam.

[0011]

[Other Embodiments] In the above embodiment, the first optical element 3 is a light emitting section, and the second optical element 4 and the third optical element 5 are light receiving sections. That is, two light receiving sections are provided for one light emitting section. Part was provided. However, the present invention is not limited to this. For example, as shown in FIG. 5, the first optical element 3 may be a light receiving section, and the second optical element 4 and the third optical element 5 may be light emitting sections. In this case, in order to identify whether the light ray received by the first optical element 3 is the light ray 12 from the second optical element 4 or the light ray 13 from the third optical element 5, the second optical element 4 Third
The optical elements 5 may be alternately operated in a time-division manner, or the second optical element 4 and the third optical element 5 may be controlled so as to derive optical signals of different codes.

[0012]

Since the present invention has the above-described configuration and operation, there is no need to provide a means for measuring a predetermined timing in order to determine whether or not the window glass is fully closed as in the prior art. There is no problem that the predetermined timing is deviated due to the above-mentioned factors, and furthermore, an excellent effect that the detection of the fully closed state and the detection of the pinch of the window glass can be performed by a combination of a small number of optical elements.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram showing a first preferred embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a state where each optical element shown in FIG. 1 is arranged on a window frame.

FIG. 3 is a perspective view of a main part of the window glass shown in FIG. 2;

FIG. 4 is a flowchart showing the operation of the circuit shown in FIG.

FIG. 5 is an explanatory view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Window glass 1b Reflecting part 2a Window frame 2b Side wall surface 3 First optical element 4 Second optical element 5 Third optical element

Claims (1)

(57) [Scope of request for utility model registration] 1. A window glass opening / closing control device having an automatic stop function and a pinching accident prevention function when the window glass is fully closed, wherein the window glass has a reflecting portion on an outer peripheral surface, and the window glass is supported. A first optical element provided on a side wall surface of the window frame to be provided; and a first optical element provided on a side wall surface of the window frame facing the first optical element and having an optical axis coincident with the first optical element when the window glass is opened. A two-optical element; and a first optical element and a second optical element disposed adjacent to at least one of the first optical element and the second optical element, and when the window glass is fully closed, via the reflecting portion of the window glass. And a third optical element having an optical axis coincident with at least one of the elements.