JPS6118375A - Automatic opening and closing device of window for vehicle - Google Patents

Abstract

PURPOSE:To improve the safety by inverting the closing operation of a window to the opening operation when an article is interposed between the window and a window frame, and inhibiting the reclosing operation of the window until a main power source is reapplied. CONSTITUTION:When the movable contact 41 of a switch 40 is connected with a stationary contact 42, a flip-flop 50a is set, a relay 70 is energized, and a motor M is rotated in a direction for closing a window. When the article is interposed between a window and a window frame in the course of closing the window, a signal is output from a comparator 100, and a flip-flop 50a is reset. Since a detection switch 110 is closed at this time, a flip-flop 50b is set, a relay 80 is energized, and the motor M is rotated in a direction for opening the window. Simultaneously, a flip-flop 150 is set, and the closure of the window is inhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vehicle window opening/closing device, and more particularly to an automatic vehicle window opening/closing device suitable for automatically opening/closing a vehicle window.

[Conventional technology]

Conventionally, this type of automatic vehicle window opening/closing device includes a rotary electric motor connected to a vehicle window to open the window when the vehicle rotates in the forward direction and closes the window when the vehicle rotates in the reverse direction; an operating means for generating an operating signal and generating a second operating signal when the window is closed; Some devices include a drive means for reversing the rotary electric motor in response to a second operation signal.

Furthermore, in addition to this configuration, when an object is caught between the window and its window frame during the automatic closing process of the window, this is detected and the window is automatically opened. For example, Japanese Patent Publication No. 54-421
It is known from Publication No. 29.

[Problem that the invention seeks to solve]

However, in the conventional technology, if the first operation signal is generated again after the window is reversed from the closing operation to the opening operation, the window is moved to close again, and if the object is not removed, the object will be pinched again. There was a problem.

The present invention has been made in response to the above-mentioned problems, and its purpose is to prevent an object from being caught between the window and the window frame in the above-mentioned automatic vehicle window opening/closing device. The object is to detect and reverse the closing operation of the window to the opening operation, and to ensure safety by preventing the next closing operation from being easily performed once it is detected that an object has been caught.

[Means to solve the problem]

In achieving this objective, the structural features of the present invention are as follows:
The automatic vehicle window opening/closing device described above includes an open state detection means that detects when the window is in an open state and generates an open state detection signal, and an open state detection means that detects an electrical load of the rotary motor and generates a load detection signal. load detection means for generating a predetermined normal value of the electrical load as a reference signal; and a reference signal generating means for generating a predetermined normal value of the electrical load as a reference signal; When the rotary motor is reversed, the signal generating means generates a reversing signal to reverse the rotary motor and applies it to the driving means. and a prohibition means for prohibiting forward rotation of the rotary electric motor in response to the first operation signal.

[Effect]

However, by configuring the present invention in this way, even though the open state detection signal is generated during the closing process of the window, the detection signal is not detected due to an object interposed between the window and its window frame. When the electrical load on the rotary motor increases beyond its predetermined normal value, the drive means operates the rotary motor under the control of the signal generating means in cooperation with the load detecting means and the reference signal generating means. Since the opening operation of the window is automatically reversed to the opening operation by reversing the window, it is possible to reliably prevent problems such as the closing operation of the window stopping while the object is caught between the window and the window frame. until the prohibition means turns the main power back on! j i
il: 4 To prohibit the re-closing operation of the window, as a result, various inconvenient situations that may occur due to the closing of the window, such as damage to the object and breakage of the window, etc. It is possible to prevent occurrences and ensure safety.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
The figure shows a vehicle door, and this door has a door body 10.
The window 20 is arranged above the window 20. The door 4 and the body 10 are constructed by standing an inner plate 11 and an outer plate 12 with a space between them. and this rotating electric motor M
A connecting mechanism 30 that moves rapidly with the rotation of the is assembled. The coupling mechanism 30 has a beher gear train 31 that converts the rotational direction of the rotary electric motor M into a rotational direction along the inner wall of the outer plate 12. A spur gear 32 that rotates is pivotally supported.

Further, the connecting mechanism 30 has a pair of connecting rods 33, 34, and these connecting rods 33, 34 are relatively attached to the outer panel 12 along its inner wall at respective intermediate portions where they overlap each other. Rotatably supported.

A sector gear 34a that meshes with the spur gear 32 is formed at the lower end of the connecting rod 34.
a rotates so as to rotate the connecting rod 34 clockwise in response to the rotation of the spur gear 32 in the counterclockwise direction shown in FIG. In response to the clockwise rotation of the spur gear 32 (corresponding to the reverse direction of the rotary electric motor M), the connecting rod 34 is rotated counterclockwise.

The window 20 is composed of a window frame 21 formed above the outer panel 12 and a window glass 22. The window glass 22 is formed upward along the opening formed by the window frame 21 and the inner wall of the outer panel 12. It is supported by the connecting mechanism 30 so as to move (or downward) to open (or open) the window 20 . In this case, the upper end of the connecting rod 33 is rotatably supported relative to the right end of the lower edge of the window glass 22, while the upper end of the connecting rod 34 is laterally supported on the left side of the lower edge of the window glass 22. The window glass 22 is connected so as to be relatively slidable within a long groove 22a provided in the window glass 22, and the upward movement (or downward movement) of the window glass 22 is accompanied by the clockwise (or counterclockwise) rotation of the connecting rod 34. This is brought about by sliding along the long groove 22a and rotating the connecting rod 33 counterclockwise or clockwise.

Next, the configuration of the automatic opening/closing device for the window 20 will be explained. As shown in FIG. An operation switch 40 connected to a power source and an R connected to this operation switch 40.
OR to the S flip-flop 50a and the operation switch 40
RS flip-flop 50 connected through gate 60b
b, a relay 70 connected between the RS flip-flop 50a and the rotary motor M, and the RS flip-flop 50b.
and a rotary electric motor M, and the operation switch 40 is an ignition switch IG.
When the movable contact 41 is closed, the fixed contact 42 (or 43
), the power supply voltage from the DC power supply B is generated at the fixed contact 42 (or 43), and when the movable contact 41 is in the neutral state, both fixed contacts 42 and 43 are cut off from the power supply voltage of the DC power supply B.

The RS flip-flop 150 is set by receiving the power supply voltage at the set terminal S when the ignition switch IG is turned on or closed, and generates a high level signal from the output terminal Q. AND gate 160 is RS flip-flop 150
When a high level signal is generated at the output terminal Q of the operating switch 4o, it is "opened" to the power supply voltage (high level signal) generated at the fixed contact '42 of the operating switch 4o. In addition, the RS flip-flow knob 150 connects the reset terminal R to the AND
It is reset in response to a high level signal from the gate, and a low level signal is generated from the output terminal Q.

When the RSS flip-flop 50a receives a power supply voltage through the fixed contact 42 of the operation switch 4o when the AND gate 16o is open at its cent terminal S, it is set and becomes an output terminal. A high level signal is generated from Also,
The RS flip-flop 50a is reset by receiving a high level signal from an OR gate 60a (described later) at its reset terminal R, and generates a low level signal from its output terminal Q. The RSS flip-flop 50a receives a high-level signal from the power supply voltage from the fixed contact 43 of the operation switch 4o or the AND game (to be described later) 90 through the R game 1-60b at its cent terminal S, and outputs it as an output terminal. A high level signal is generated from Q. Further, the RSS flip-flop 50a is reset by receiving a high level signal from a comparator 100, which will be described later, at its reset terminal R, and generates a low level signal from its output terminal Q.

The relay 70 is composed of an electromagnetic coil 71 that is excited (or demagnetized) in response to a high level signal (or low level signal) from the output terminal Q of the RS flip-flop 50a, and a double-throw switch 2. The switch 72 includes a fixed contact 72a, a fuse F, and an ignition switch I.
It is composed of a fixed contact 72b connected to the DC power supply B via C, and a double-throw contact 72c connected to the first input terminal of the rotary motor M. When the electromagnetic coil 71 is demagnetized, the double-throw contact 72c becomes a fixed contact. 72a, and the electromagnetic coil 71
The double-throw contact 72c is connected to the fixed contact 72b in response to the excitation of
An input terminal is provided to cause the rotary electric motor M to rotate in the normal direction.

The relay 80 includes an electromagnetic coil 81 that is excited (or demagnetized) in response to a high level signal (or low level signal) from the output terminal Q of the RS flip-flop 50b, and a double-throw switch 82. For example, the fixed contact 82a, fuse F and ignition switch IC
, and a double-throw contact 82c connected to the second input terminal of the rotary motor M. When the electromagnetic coil 81 is demagnetized, the double-throw contact 82C becomes a fixed contact. 82a, and the electromagnetic coil 81
The double-throw contact 82c is connected to the fixed contact 82b in response to the excitation of
An input terminal is provided to reverse the rotation of this rotary electric motor M.

The detection switch 110 is connected to the outer panel 12 as shown in FIG.
When the window 20 is not fully closed, it maintains the closed state and generates a low level signal, and the window 20 is fully closed by the window glass 22. When the low level signal is opened, the low level signal disappears. The load detection resistor 120 is grounded at one end and connected to the double-throw switch 72 at the other end.
fixed contact 72a and fixed contact 82 of double-throw switch 82
a, and connects the armature current of the rotating electric motor RM to the fixed contact 72a and double-throw contact 72c of the double-throw switch 72 (
Or the fixed contact 82a of the double-throw switch 82 and the double-throw contact 8
2C) and is generated as a load detection voltage.

A pair of voltage dividing resistors 130a and 130b are connected to each other in tf series, and the voltage dividing resistor 130b is grounded at one end, and the voltage dividing resistor 130a, fuse F, and ignition switch IC are connected at the other end. It is connected to DC power supply B through the power supply. Therefore, the voltage dividing resistor 130b cooperates with the voltage dividing resistor 130a to divide the power supply voltage generated from the DC power supply B through the ignition switch IG and the fuse F, and uses this as a reference voltage to divide the voltage into the voltage dividing resistor 130a. emanate from the common end of In such a case, the voltage dividing resistor 130b
The reference voltage from is the abnormal value of the armature current flowing in the rotating motor M when an object is caught between the window frame 21 and the window glass 22 when the window 20 is opened (hereinafter referred to as abnormal armature current).
corresponds to

The comparator 100 compares the load detection voltage from the load detection resistor 120 with the reference voltage from the voltage dividing resistor 130b, generates a high level signal when the load detection voltage is higher than the reference voltage, and outputs this high level signal to the load. It is extinguished when the detection voltage is lower than the reference voltage. The AND gate 90 responds to the low level signal from the 21 inverter 100 under the control of the low level signal 13 from the detection switch 110 and outputs the high level signal 2 to be applied to the rOR gate 60a. occurs. Also, AND game 1
The high level signal from -90 disappears in response to the disappearance of the high level signal from the comparator 100, and is controlled by the inverter 90a in response to the disappearance of the low level signal from the detection switch 110.

In this embodiment configured as described above, if the window 20 is fully open, the detection switch 110 continues to generate the low level signal. When the ignition switch IG is closed in this state, the RS flip-flop 150 is NANDed and a high level signal is generated at the output terminal Q. At this time, the movable contact 41 of the switch 40
If you put it into the fixed contact 42, the RS flimp flow knob 5
0a receives a high-level signal from the AND gate 160 at the set terminal S and generates a high-level signal from the output terminal Q. In response, the relay 70 activates the electromagnetic coil 71 to close the double-throw contact of the double-throw switch 72. 72C fixed contact 7
Connect to 2b.

Then, the rotary motor M receives a power supply voltage from the DC power supply B at its first input terminal through the ignition switch IC, the fuse F, the fixed contact 72b and the double-throw contact 72c of the double-throw switch 72, and rotates in the normal direction. , the coupling mechanism 30 reduces the relative angle between its two coupling rods 33,34 and the window 20 begins to close by moving the pane 22 upward. However, window 20
is fully closed due to the upward movement of the window glass 22, the load detection voltage generated from the load detection resistor 120 is applied to the rotary motor M.
When the armature current increases to exceed the reference voltage from the voltage dividing resistor 130b, the comparator 100 generates a high level signal, and the RS flip-flop 50a responds to the high level signal from the comparator 1.00. OR
It is reset under the control of gate 1-60a to generate a low level signal from output terminal Q, and in response, relay 7
0 demagnetizes the electromagnetic coil 71 to cut off the double-throw contact 72C of the double-throw switch 72 from the fixed contact 72b, and the rotary motor M stops its normal rotation and operates the window glass 22 upwardly due to its connection with the coupling mechanism 30. to stop.

By the way, in the process of closing the window 20 mentioned above, suddenly,
Assuming that some object is sandwiched between the window glass 22 and the window frame 21, as the mechanical load on the rotating electric motor 6M increases, the armature current from the rotating electric motor M increases and the load detection resistor increases. The load detection voltage from 20 increases. When the load detection voltage reaches a value corresponding to the abnormal armature current from the rotary motor M, the comparator 100 detects the voltage from the voltage dividing resistor 130b while the detection switch 110 is generating the low level signal. A high level signal is generated in relation to a reference voltage.

Then, the RS flip-flop 50a becomes the comparator 1.
In response to the high level signal from 0 to ρ, the output terminal Q is reset by the OR gate 60a and a low level signal is generated. Stop its normal rotation. As a result, the window glass 22 immediately stops moving upward in cooperation with the coupling mechanism 30. Then, AND/7
When '-1-90 generates a high level signal in response to a high level signal from the comparator 100 under the control of the inverter 90a which responds to the low level signal from the detection switch 110, the RS flipflop 5ob is connected to the AND gate. OR gate 6 responsive to a high level signal from 90
0b, a high level signal is generated from the output terminal Q, and in response, the relay 80 activates the electromagnetic coil 81.
The excitation connects the double-throw contact 82C of the double-throw switch 82 to the fixed contact 82b.

Next, the rotary motor M receives the power supply voltage from the DC power supply B at its second input terminal through the ignition switch IG2 fuse F, the fixed contact 82b and the double-throw contact 82c of the double-throw switch 82, and is reversed at LJ. increases the relative angle between the connecting rods 33, 34, and the window 20 begins to open by moving the pane 22 downward. Therefore, when the window 20 is fully opened due to the downward movement of the window glass 22, the load detection voltage generated from the load detection resistor 120 changes from the voltage dividing resistor 130b in response to an increase in the armature current from the rotary motor M. When the reference voltage exceeds the reference voltage of As a result, the double-throw contact 82c of the double-throw switch 82 is cut off from the fixed contact 82b, the rotary electric motor M stops its reverse rotation, and the downward movement of the window glass 22 is stopped in cooperation with the coupling mechanism 30.

On the other hand, when the AND gate 90 produces a high level signal,
The high level signal is applied to the recessor 1 terminal R of the RS flip-flop 150, and the RS flip-flop 1
If it is 50, it is reset and produces a low level signal at the output terminal Q. The AND gate 160 is "closed" in response to the low level signal, and even if the movable contact 41 of the operating switch 40 is newly connected to the fixed contact 42, no high level signal will be produced at the output terminal. For this reason, the RS flip-flop 50a is not turned on again, so the double-throw contact 72c of the double-throw switch 72 cannot be connected to the fixed power supply contact, and the rotary motor M moves the window glass 22 upward. I can't do it.

In such a state, in order to move the window glass 22 upward to close the window 20, the ignition switch I must be turned on.
After cutting off G once, turn it on again. As mentioned above, R.S.
Flip-flop 150 is Igninon Yonsui IG
In response, the AND gate 160 is "opened" to the power supply voltage (high level signal) generated at the fixed contact 42 of the operating switch 40, and therefore the above-mentioned operation can be repeated. Become.

As explained above, in this embodiment, if some object is suddenly caught between the window frame 21 and the window glass 22 when the window 20 is closed, the load detection resistor 120 The abnormal armature current from the one-rotation motor M is detected as a load detection voltage, and the comparator 100 compares the load detection voltage with the reference voltage from the voltage dividing resistor 130b to generate a high level signal, which is connected to the OR gate 60a. RS through collaboration with
The flip-flop 50a is re-centered, the rotary motor M is cut off from the DC power supply B by the relay 70 and stopped, and the closing operation of the window 20 is immediately stopped in cooperation with the coupling mechanism 30, and the AND gate 90 detects this. Generating a high level signal in response to a high level signal from the comparator 100 under the control of an inverter 90a responsive to a low level signal from the switch 110, and in cooperation with an OR gate 60b, causes the RS flip-flop 50b to And rotating electric! Immediately after M stops, it is reversed by the relay 80 and begins to open the window 20, so that the object can be removed without unnecessary pressure between the window frame 21 and the window glass 22. , damage to the object, breakage of the window 20, and other various inconvenient situations that are expected to occur due to continued opening of the window 20 can be prevented and safety can be ensured.

Further, when this device is activated to move the window glass 22 downward due to some object being caught between the window frame 21 and the window glass 22, the RS flip-flop 150 is re-centered and the ignition switch IG is turned on. Since it is prohibited to set it again until it is turned on again after it is shut off, a "pause" is required to carefully remove the trapped object, so it requires caution from the crew and further ensures safety. It can be done.

In the above embodiment, the detection switch 110 is used as the open state detection means for the window 20. However, the present invention is not limited to this. It may be employed as the open state detection means. In such a case, the output signal from the photoelectric conversion means is set to a high level when the window 20 is open, and is set to a low level when the window 20 is fully open, thereby omitting the inverter 90a. It's okay.

Further, in the embodiment described above, an example was explained in which the load detection resistor 120 was adopted as a means for detecting the armature current from the rotary motor M, but the present invention is not limited to this, and for example, a ball element may be adopted as the detection means. Good too.

Further, in the above embodiment, an example in which the present invention is applied to the window 20 in which the window glass 22 moves up and down has been described, but the present invention is not limited thereto. The present invention may also be applied and implemented.

〔Effect of the invention〕

As described above, the present invention can be applied to an automatic vehicle window opening/closing device to make its operation much safer.

[Brief explanation of drawings]

FIG. 1 is a structural diagram of a vehicle door window, and FIG. 2 is an electrical circuit diagram of the automatic window opening/closing device in FIG. 1. Explanation of symbols (symbols) (terms of embodiments) (terms of claims) B DC power supply Main power supply M Rotating motor Rotating motor IC ignition □- Sinch

Claims (1)

[Claims] a rotary electric motor connected to a window of the vehicle to open the window when the vehicle rotates in the forward direction and close the window when the vehicle rotates in the reverse direction; an operating means that generates two operating signals; and a drive that rotates the rotating electric motor in the normal direction in response to the first operating signal and reversely rotates the rotating electric motor in response to the second operating signal when the main power is turned on. an open state detection means for detecting when the window is in an open state and generating an open state detection signal, and detecting an electrical load of the rotating motor and generating the load detection signal. load detection means for generating a predetermined normal value of the electrical load as a reference signal; and a reference signal generating means for generating a predetermined normal value of the electrical load as a reference signal; signal generating means for generating a reversing signal for reversing the rotary electric motor and applying it to the driving means; prohibition means for prohibiting forward rotation of the rotary electric motor in response to one operation signal;
An automatic opening/closing device for a vehicle window, characterized in that it is provided with a.