JPH0540218Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a regulator device that controls opening and closing of windows, sunroofs, etc. in automobiles and the like.

In recent years, regulator devices that use motors to automatically open and close objects such as windows and sunroofs have become popular. Since such a regulator device automatically opens and closes windows, sunroofs, etc., it is necessary to pay attention to the presence or absence of obstacles when closing windows, etc. In order to eliminate this need, a sensor is provided as disclosed in Japanese Utility Model Application Publication No. 47-22624, Japanese Utility Model Application Publication No. 50-81519, etc., and when an obstacle is detected by the sensor, the window etc. can be closed. Some ideas have been devised to stop the operation or to shift it to a closing operation. However, conventional devices
Since the sensor operates even when the window is closed normally, an additional position sensor is required to distinguish between normal and abnormal conditions, and the sensor is pressed every time the window is opened or closed. Because of this, there were drawbacks such as the sensor being easily damaged.

Furthermore, as disclosed in Japanese Utility Model Application Publication No. 59-68, a sensor is fixed to the side where the end of the openable object does not contact, and when the sensor is turned on, the closing operation of the openable object is controlled. Some have at least stopped it. In this case, the position sensor is not required because the sensor operates only when an abnormality occurs, and the sensor is less likely to be damaged, but it has the disadvantage that it will not operate if the sensor is disconnected.

The present invention has been developed in consideration of the above, and eliminates the need for a position sensor by making the sensor operate only when an abnormality occurs, making it difficult to damage the sensor, and displaying an indication even when the sensor is disconnected. It is an object of the present invention to provide a regulator device that eliminates the drawbacks of the above.

An embodiment in which the present invention is applied to a wind regulator device will be described below with reference to the drawings. 1st
As shown in the figure, the sensor 1 is composed of an outer covering part 3 having a hollow part 2, and at least a pair of conductive parts 4a and 4b provided in the hollow part 2. The outer covering part 3 is made of insulating silicone rubber, and the conductive parts 4a and 4
Since b can be made of an elastic body such as silicone rubber as a conductive part, both are integrally formed.

The sensor 1 is mounted, for example, as shown in FIG. The weather strip 6 fixed to the frame 5 has a recess 6a that comes into contact with the end 7a of the window 7.
Side portions 6b are formed that protrude from both sides of the recessed portion 6a. The sensor 1 is attached to at least one side (the indoor side (left side) in the figure) of the side parts 6b. Therefore, the sensor 1 is not pressed by the opening/closing operation of the window 7 (in the vertical direction in the figure).

The end of the sensor 1 is attached to a case 9 that houses the circuit section 8 of the sensor 1, as shown in FIGS. 3 and 4, for example. A pair of conductive parts 4a and 4b
is mounted on the catch seat 10. 1
They are electrically connected to the paired terminals 11, respectively. Necessary power is supplied to the terminal 11 and the circuit section 8 via the electric wire a. Reference numeral 12 denotes a locking spring, which is used to press and fix the end of the sensor 1 to the seat 10 of the case 9. To ensure secure fixation, the outer diameter of the seat 10 plus the thickness of the terminal 11 may be made slightly larger than the diameter of the hollow portion 2.

FIG. 5 shows a control circuit diagram. Reference numeral 13 denotes a manually operated switch, the movable contact of which is biased by a spring or the like (not shown) so that it always returns to the neutral contact N even if it is switched to either the fixed contact D or U. Reference numeral 14 denotes an auto-operated switch, the movable contact of which is always biased by a biasing means (not shown) so as to be in the neutral position, but when the movable contact contacts either fixed contact D or U, the switch (not shown) It is held in position by latching means. 15 is a relay having a contact 15a, and 16 is a relay having a contact 16a. When the switch 13 or 14 is switched to the contact D side or the U side, respectively, the transistor Tr ₁ or Tr ₂ is turned on and excited. It is becoming more and more like this. M is a motor that moves the window 7 up and down, and when the contact 15a of the relay 15 is turned on, the path goes through the terminals A and B, the contact 16a of the relay 16, and the resistor Ri; , in the path of contact 15a and resistor Ri,
Each allows current to flow through them. 17 is a current detection circuit, and contacts D and D of switches 13 and 14
Diode from U and terminals A and B of motor M
A positive voltage is applied to the terminal V via _D1 to _D4 . In addition, the voltage drop generated across the resistor Ri is applied to the terminal IN, and when the voltage drop exceeds a predetermined value, a logic L signal is output to the terminal OUT. Otherwise, voltage is applied to the terminal V. If the voltage is applied, a logic H signal is output to the terminal OUT, and if no voltage is applied, a logic L signal is output to the terminal OUT. Terminal OUT is connected to transistors Tr ₁ and Tr ₁ through resistors R 1 and R ₂ .
Each is connected to the base of Tr ₂ . Resistance R ₁ , R ₂
The common connection point of the switch _{13 is connected to the ground via the transistor Tr 3} , and the neutral contact N of the switch 13 is connected to the base of the transistor Tr ₃ .
8.

On the other hand, the voltage of a predetermined power supply is applied to the resistor through wire a.
It is applied to a series circuit of _R3 , the conductive part 4a, and the resistor _R8 . The collector of the transistor Tr ₄ , whose base and emitter are connected to both ends of the resistor R ₃ , is connected to the wire b.
It is connected to one end of the resistor R ₁ at one end of the relay 15 via the resistor R 1 , and is also connected to the base of the transistor Tr ₅ . The collector of transistor Tr ₅ is connected to the base of transistor Tr ₂ via electric wire c.

On the other hand, CP ₁ and CP ₂ are comparators,
The outputs of comparators CP ₁ and CP ₂ are OR gates
is supplied to amplifier A via OR, and amplifier A
The output of is configured to drive a lamp Lo. Also, the voltage supplied through wire a is resistor
Supply it to the series circuit of R ₉ and the conductive part 4b to divide the voltage,
Similarly, it is supplied to a series circuit of resistors R ₁₀ and R ₁₁ for voltage division, and similarly it is supplied to a series circuit of resistors ₁₂ and R ₁₃ for voltage division. The voltage applied to the conductive part 4b is supplied to the non-inverting input terminal of the comparator CP ₁ , and the voltage applied to the conductive part 4b is supplied to the inverting input terminal of the comparator CP ₁ .
The voltage applied to _R11 is supplied as a reference voltage, and a resistor is connected to the inverting input terminal of comparator _CP2 .
The voltage applied to R ₈ is supplied, and the voltage applied to resistor R ₁₃ is supplied as a reference voltage to the non-inverting input terminal of comparator CP ₂ . Here, the comparators CP ₁ and CP ₂ and the OR gate OR form a window comparator.

Next, its operation will be explained. When the switch 14 is switched to the contact D side, a voltage is applied to the terminal V of the current detection circuit 17 via the diode _D2 , so an H signal is output from the terminal OUT, and the transistor
Tr ₁ turns on, relay 15 is energized, and contact 15
a turns on. Therefore, the motor M rotates forward, for example, and the window 7 is lowered. Even if the switch 14 is released, current flows from the contact 15a to the relay ₁₅ via the diode D5 and is maintained. When the window 7 reaches the lowest point, the voltage drop across the resistor Ri exceeds a predetermined value, so the terminal OUT of the current detection circuit 17 outputs an L signal. As a result, the transistor _Tr1 is turned off, the relay 15 is deenergized, and the motor M stops rotating. At the same time, the switch 14 is also unlatched.

When the movable contact of switch 14 is switched to contact U side, transistor Tr ₂ turns on and relay 1
6 is energized and even if switch 14 is released, current continues to flow through diode D ₆ to relay 16, so motor M reverses, wind 7 rises, and when it reaches the highest point, motor M stops rotating. do. The operation is substantially the same as that for lowering the window 7, so detailed description will be omitted.

Next, when the switch 13 is switched to the contact D or U side, the window 7 is lowered or raised in the same way as when the switch 14 is switched to the contact D or U side.
However, in the case of the switch 13, when the switch 3 is released, its movable contact comes into contact with the neutral contact N. Therefore, a differential output is output from the differentiating circuit 18, turning on the transistor Tr3, and turning on the transistor _Tr3 .
Since the base of Tr ₁ or Tr ₂ is grounded, the rotation of the motor M stops at that point.

An obstacle comes into contact with the window 7 while it is rising, and the sensor 1 turns on. That is, the conductive parts 4a and 4b are in contact with each other, and the conductive part 4a is grounded. Therefore, transistors Tr ₄ and Tr ₅ are turned on. As a result, the transistor _Tr2 is turned off, the relay 16 is deenergized, and the motor M stops rotating. On the other hand, a voltage is applied from the collector of the transistor Tr ₄ to the relay 15 and the base of the transistor Tr ₁ , so that the transistor Tr ₁ is turned on. As a result, the relay 15 is energized, and the motor M rotates to lower the window 7. Even if the contact between the conductive parts 4a and 4b is broken, that is, the sensor 1 is turned off, the relay 15 remains connected to the contact 1.
Since current is supplied from 5a, the on state is maintained and the window 7 is stopped after reaching the lower limit.

The time it takes for the motor M to stop rotating and start rotating in the opposite direction is considered to be about 3 msec when a quick cut relay is used. The distance that the window 7 moves during this time is approximately 0.9 mm, assuming a speed of 30 cm/sec. In order to absorb this distance by elastically deforming the strip 6 after the sensor 1 is turned on, the sensor 1 is preferably made to be more elastically deformable than the strip 6.

Further, a case where the conductive parts 4a and 4b are not disconnected will be described. The resistance values of resistors R ₈ and R ₉ are set large. As a result, the conductive part 4b
When there is no disconnection, the potential of the non-inverting input terminal of the comparator _CP1 is approximately the ground potential, and the output of the comparator _CP1 is a logic L level. Also, the conductive part 4
When a is not disconnected, the potential at the inverting input terminal of the comparator CP ₂ is approximately equal to the voltage supplied via the wire a, and the output of the comparator CP ₂ is logic L. As a result, conductive parts 4a and 4b
When both are in the non-broken state, the output of the OR gate OR is logic L, and the lamp Lo does not emit light, indicating that the conductive parts 4a and 4b are in the non-broken state.

When the conductive part 4a becomes disconnected, the comparator
The potential of the inverting input terminal of CP ₂ becomes approximately the ground potential, and the output of the comparator CP ₂ becomes logic H.
In addition, when the conductive part 4b becomes disconnected, the comparator
The potential at the non-inverting input terminal of CP ₁ is approximately equal to the voltage supplied via wire a, and the comparator
The output of CP ₁ becomes logic H. As a result, the conductive part 4
OR gate when either a or 4b is disconnected
The output of OR becomes logic H, and this output is applied to amplifier A.
The amplified lamp Lo is turned on to indicate that the conductive part 4a or 4b is disconnected.

Note that in the above explanation, amplifier A
Although the example is given in which the lamp Lo is driven, a buzzer may be driven instead of the lamp Lo to indicate a disconnection by sounding.

FIG. 6 shows another embodiment. The switch 20 is a lowering switch, and the switch 21 is a raising switch, and is latched when the coil 22 connected to the collector of the transistor Tr ₆ driven by the output of the current detection circuit 17 is excited. It's summery. The current detection circuit 17 connects a predetermined voltage to a resistor.
It is composed of a comparator 23 that compares the voltage divided by R ₆ and R ₇ and the voltage drop across the resistor Ri. The base of the transistor Tr ₇ is the conductive part 4b
It is connected to a predetermined power supply via a series circuit of a resistor _R9 , an imitter is grounded, and a collector is connected to the base of a transistor _Tr6 .

Furthermore, the voltage of the predetermined power supply is determined by the conductive part 4a and the resistor _R8.
The voltage is divided by the series circuit with comparator CP ₂
The applied voltage of resistor R ₈ is supplied to the inverting input terminal of . Note that resistors R ₁₀ to R ₁₃ , comparator CP ₁ ,
CP ₂ , OR gate OR, amplifier A, and lamp Lo are constructed in the same way as in the embodiment shown in FIG.

Next, we will discuss its operation. When the switch 20 is turned on manually, the switch 2
When 1 is turned on manually, terminals B of motor M,
A, the switch 20, and the resistor Ri, a current flows through each path, and the motor rotates forward or backward so as to lower or raise the window 7. As long as the window does not reach the top or bottom point, the voltage divided by the resistors R ₆ and R ₇ is greater than the voltage drop across the resistor Ri, so the comparator 23 outputs an H signal and the transistor Tr ₆ is turned on. Then, the oil 22 is energized and the switch 20 or 21 is latched.

Resistance occurs when window 7 reaches the top or bottom point
The voltage drop across Ri becomes larger, the output of the comparator 23 becomes an L signal, the transistor Tr ₆ is turned off, the excitation of the coil 22 is released, the latch of the switch 20 or 21 is released, and the rotation of the motor M is stopped. do.

On the other hand, when the conductive parts 4a and 4b are in a non-disconnected state, the voltage of the power supply is applied to the base of the transistor _Tr7 via the resistor _R9 and the conductive part 4b. As a result, the transistor Tr ₇ is controlled to be active and exhibits a predetermined resistance value between the collector and emitter of the transistor Tr ₇ , and the transistor Tr ₆ operates as described above and is controlled by the output of the comparator 23 . Also, in this state, the comparator
The voltage applied to the non-inverting input terminal of CP ₁ is resistor
The output of comparator CP ₁ is at a low potential, which is lower than the reference voltage obtained by dividing the voltage of the power supply by R ₁₀ and R ₁₁ , and the voltage applied to the inverting input terminal of comparator CP ₂ is lowered by resistors R ₁₂ and R ₁₃ . The output of the comparator CP ₂ is at a low potential that is higher than the reference voltage obtained by dividing the voltage of the power supply, and the lamp Lo does not emit light, indicating that the conductive parts 4a and 4b are not disconnected.

Next, when the conductive parts 4a and 4b are in contact with each other while the motor M is rotating, the voltage of the power supply is applied to the conductive part 4
a, 4b to the base of transistor Tr ₇ , transistor Tr ₇ is turned on,
The base of the transistor _Tr6 is grounded, and the rotation of the motor M is stopped.

Furthermore, when the conductive part 4a or 4b is disconnected, the voltage at the non-inverting input terminal of the comparator CP ₁ is greater than the reference voltage supplied to the inverting input terminal, and the output of the comparator CP ₁ becomes a high potential, or the voltage at the non-inverting input terminal of the comparator CP ₁ becomes a high potential. The voltage at the inverting input terminal is lower than the reference voltage applied to the non-inverting input terminal, and the output of the comparator _CP2 becomes a high potential. As a result, or gate OR
The output becomes a high potential and is amplified by the amplifier A, the lamp Lo emits light, and the conductive part 4a or 4
It is displayed that wire b is disconnected.

Furthermore, the output of amplifier A is used to energize relay R _L as shown by the broken line in FIG. 6, and when relay R _L is energized, the application of voltage from power supply +B to switches 20 and 21 is cut off. Therefore, when the conductive parts 4a, 4b are disconnected, the motor M is stopped.

As described above, the present invention is designed to stop the closing operation of an openable/closable object when a pair of conductive parts in the sensor come into contact, and also to detect a disconnection of each conductive part, and to display an indication when a disconnection occurs. Since the display is made to display the information on the screen, there is no possibility that the obstruction will be pinched by the opening/closing object.Furthermore, since the failure status is displayed, repairs can be made in advance to improve safety. It has the effect that it can be done.

[Brief explanation of the drawing]

The figures are all related to the present invention; FIG. 1 is a perspective view of the sensor, FIG. 2 is a sectional view of its installation, FIG. 3 is a sectional view of the end of the sensor, and FIG. 4 is a sectional view of the center of the sensor. FIG. 5 is a control circuit diagram, and FIG. 6 is a diagram showing another embodiment of the control circuit diagram. 1...sensor, 4a and 4b...conductive part,
Tr ₃ , Tr ₄ , Tr ₅ Tr ₆ and Tr ₇ ...transistors,
M... Motor, 23, CP ₁ and CP ₂ ... Comparator, Lo... Lamp, 17... Current detection circuit.

Claims (1)

[Claims for Utility Model Registration] A regulator device for controlling the opening and closing of openings and closing objects such as windows and sunroofs of automobiles, which comprises: a long outer covering portion having a hollow portion; The pair of conductive parts are in contact with a sensor that includes at least a pair of conductive parts that are arranged opposite to each other with a hollow part in between, and that is fixed to a side that does not come into contact with the end of the opening/closing object. means for stopping the closing operation of the opening/closing object; and display means for detecting the conduction state of both ends of each of the conductive parts and detecting and displaying that at least one of each of the ends is disconnected. A regulator device characterized by: