JPS592948A - Angle variation controller for motor-driven remote control mirror - Google Patents

Abstract

PURPOSE:To prevent a malfunction resulting from a noise from occurring, by constituting a manual switch circuit of a remote control mirror with a changeover switch part, a transistor to be provided between the switch part and a control output terminal and a diode for a reverse current prevention. CONSTITUTION:A manual switch circuit of a remote control mirror is constituted with a changeover switch part 17, transistors Tr18-Tr21 among the changeover switch part 17 and control output terminals c-f and diodes D3-D6 for a reverse current prevention. Now, when only a movable contact point of a switch SWa is switched to a power source terminal (a) side for a variation of angle, the transistor Tr18 is turned ON and the terminal (c) is turned into ''H''. An angle of a left side mirror, therefore, which was driven through a gate circuit and a mirror driving circuit by a left side mirror driving motor is made to vary in a leftward direction. Then, when a switch SWS is turned ON, a terminal (b) is turned into ''H'' also and the angle of the left side mirror is varied upward. Similarly, when each switch is changed over appropriately angles of both sides mirrors are varied appropriately in a right and left and an up and down directions.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an angle control device for an electric remote controller 2 having an automatic angle shifting function. In particular, one mirror drive motor is provided for each mirror to be angled, and a switching means is provided for switching the driving force transmission direction of the motor. The present invention also relates to a tilt angle control device for an electric remote control mirror that tilts the mirror in both left and right directions.

Although the present invention is extremely effective when applied to an outside mirror mounted on the side opposite to the driver, it can be widely used in other remote-controlled mirrors.

The conventional electric remote control mirror automatically turns to the left, right, up, or down by turning on a switch, and after being stationary for a certain period of time, it automatically changes to the opposite direction again. It is configured to return to its original position by changing the angle.

The original position, that is, the position where the mirror is normally set, is called the eye point, and is the most appropriate mirror position during normal driving.

Such remote control mirrors are used to visually check the position near the vehicle body by temporarily shifting the mirror from the eye point when changing lanes during normal driving, parking in a garage, or pulling over to the side of the vehicle. However, in the above-mentioned conventional technology, the electric outside mirror 2- on the opposite side of the driver's seat (left side in Japanese cars) is used to view road shoulders, gutters, curbs, etc. Even if the angle is automatically changed, if you just change the angle directly downwards from the normal eye point, the car body will actually get in the way, and the poles will move away from the tires.
Up close it is virtually invisible.

Therefore, it was difficult to pull the car over without relying on intuition. Moreover, once the switch is turned on, it does not start returning until a certain period of time has elapsed, which is inconvenient when you want to return it to its original position immediately.Furthermore, with conventional mirrors, the manual switch circuit's switch ON and OFF settings are inconvenient. The level difference between the output terminal and the output terminal is small, making it susceptible to noise, etc.
There is also the problem that there is a risk of malfunction.

In view of the above circumstances, the present invention automatically deflects the electric remote control mirror straight down and then inward of the vehicle (to the right in Japanese vehicles), so that the pole of the vehicle tire To provide a variable angle control device for an electric remote control mirror, which allows you to see nearby places in the mirror, and allows you to pull a car closer while actually visually recognizing it without relying on your intuition.

Furthermore, the present invention makes it possible to immediately return to the original position by turning on the switch again after turning on the switch to change the angle and completing the turning, thereby increasing the convenience of using the mirror. ◎ In addition, with the above configuration, when turning right (or left) after downward turning, or when returning,
In the case of a one-motor type like the present invention, which has one motor and is equipped with means for switching the driving force transmission direction, the clutch, etc. Since the switching mechanism will have to be turned off, it will take some time for it to turn off completely, and a positional deviation will occur at the end of the angle change and return, and if used several times, this deviation will accumulate and become larger. , there is a possibility that the desired field of view cannot be obtained and the eye point must be adjusted and set again. For this reason, in the present invention, in order to eliminate such problems, the rotation of the motor and the operation command of the switching means are stopped at the point when the downward deflection is completed.
After the complete mechanical switching operation (clutch disengagement, etc.) is completed, rotate the motor again to shift the angle in the right (or left) direction, and do the same thing when returning. The purpose is to reduce the positional deviation of the eyepoint, eliminate the need to frequently set the eyepoint, and make the eyepoint more convenient to use.

Furthermore, the present invention enables the switch O of the manual switch circuit to be changed without changing the changeover switch section in the conventional mirror.
It is also intended to increase the level difference between the output terminals when N and OFF, thereby preventing malfunctions caused by noise in the power supply.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a basic example of a variable angle control device for an electric remote control mirror according to the present invention. In FIG. 1, l is a switch, 2 is a variable angle command circuit, 3 is a return command circuit, and 4 1 is a first timer circuit, which is used to set the operating time of a switching means (not shown, a solenoid in this embodiment) and a mirror drive motor (not shown) at the time of downward shift and upward return. 5, 7.9 are the 1st. The second and third trigger circuits each generate a trigger signal at the moment when the timer circuit on the input side changes from the on state to the off state, and turn on the timer circuit on the output side. 6 is a second timer circuit, which is used for setting the pause time. 8 is the third
In the timer circuit, right of the left mirror (or left of the right mirror)
It is used to set the operating time of the motor when changing the direction and returning the left mirror to the left (or to the right of the right mirror). 10 is a fourth timer circuit which, in combination with the output signal of the first timer circuit 4 or the third timer circuit 8, gives a signal to the gate circuit 11 indicating whether the angle should be changed or restored;
The third trigger circuit 9 is caused to generate a trigger signal at the end of the time measurement or at the moment it is turned off by a reset signal from the return command circuit 3.

11 is a gate circuit, and the first to fourth timer circuits 4
, 6, 8, and 10, a signal indicating whether to rotate the motor in the forward direction or in the reverse direction is applied to a mirror drive circuit, which will be described later. 12 is the mirror drive circuit, which operates a solenoid, which is a switching means, according to the output of the first timer circuit 4;
The output from the gate circuit 11 causes the motor to rotate forward or reverse.

Here, the first to fourth timer circuits 4,6°8, lO
When the switch 1 is pressed when all of the 4. and 4.
lO is turned on. Also, when the first to third tie-boo circuits 4, 6.8 are off and only the fourth timer circuit 10 is on, if one switch 1 is pressed, the signal from the gate circuit 11 selects and the return command circuit 3 is activated. , the fourth timer circuit 10 is reset and turned off. 1st to 3rd
Even if the switch is pressed while any one of the timer circuits 4, 6.8 is on, the signal from the gate circuit 11 causes neither the angle change command circuit 2 nor the return command circuit 3 to work.

In addition, in FIG. 1, 13 is a one-motor electric remote control mirror, and 14 is a manual switch circuit used for setting an eye point. 15 is a manual switch circuit 14
Manual switch power supply circuit for turning on and off power to
is an automatic operation display circuit that displays mirror automatic angle change and return operation.

FIG. 2(a) to d) show each timer circuit 4, 6.
8°10 output timing diagram is shown. In this case, the second
Figure (a) shows the ON time t4 of the fourth timer circuit lO + figure (b) shows the ON time t and t' of the first timer circuit 4.
0. (c) shows the ON times t2 and t'2 of the second timer circuit 6. (d) is the ON time t of the third timer circuit 8.
3 and t3, respectively. Also, in the figure, tI = tI T
F = J + j3 = t'3, tI is the time during which the switching means (solenoid) operates, the motor rotates forward, and the mirror is deflected downward, and t is the time during which the motor rotates forward and the mirror rotates downward. This is the time to turn right (or left). t' is the time when the switching means (solenoid) is activated, the motor reverses, and the mirror returns upward; t' is the time when the motor reverses and the mirror returns to the left (or right) direction. .

t, and t' are the pause times, (ta (tI+t
2 +t3)) is the time during which the mirror remains stationary after completing the angle change. That is, by pressing switch 1,
Time advances as t, -*t, →t, and ends at t', →t', →t' from the moment the fourth timer circuit 10 is turned off, and returns to the original position.

FIG. 3 is a circuit diagram showing a specific example of the apparatus of the present invention shown in FIG. 1, and in FIG. 3, numerals 1 to 16 are the same as those in FIG. 1. In this case, the switch 1 consists of a so-called push button switch whose one end is grounded. The other end of this switch SW is connected to the positive power supply + via a resistor R. Switch SW and resistor R8
The connection point is connected to the first input terminals of AND2 and AND2. Antogame) AND, ha,
The second input terminal is connected to the output terminal of the NOR gate, and the output terminal is connected to the input terminal of the first timer circuit T1 by sequentially activating the capacitor C8 and the diode D1 having the polarity shown. The output terminal of the first timer circuit T is connected to the input terminal of the third timer circuit T by sequentially controlling the capacitor c3, the second timer circuit T2, and the capacitor C4.

The fourth timer circuit T4 has an input terminal connected to the capacitor C4.
and the diode D, and the output terminal is connected to the connection point of the first
It is connected to the input end of the timer circuit T.

The second input terminal of the AND gate AND is connected to the output terminal of the NOR, and the output terminal thereof is connected to the reset terminal of the fourth timer circuit T4 via the capacitor C2. Further, the output terminal of the above-mentioned ant gate (AND) is connected to the base of an NPN transistor Trl via a resistor R1. This transistor Tr1t;t,,
The collector is a PNP transistor Tr via a resistor R8.
2 pace and the emitter is grounded. Also,
The emitter of the transistor Tr2 is connected to the positive power supply, and the collector is connected to the power supply terminal a of the manual switch circuit M, SW.

The output terminals of the first to third timer circuits T1 to T3 are connected to the first to third input terminals of the OR game. Among these, the output terminal of the first timer circuit T is the first input terminal of the OR gate OR, and the ant gate) ANDs
, ANDs, and the output terminal of the third timer circuit T3 is connected to each first input terminal of the third timer circuit T3.
are also connected to each first input terminal of the. 4th timer circuit 1・
0 output terminal is the second input terminal of ・77)°ge) AND, ・AND, \\ and the first
゛・Directly connected to each input terminal, and inverter NY
.

through the AND gate ANDS, AND6 each second
Connected to the input end. Further, the second input terminal of the NOR gate NOR is connected to the first input terminal of the NOR gate N0R2 connected to the second input terminal of the AND6.
The input terminal is connected to the OR gate OR.

connected to the output end of the The output terminals of the OR gate OR3 and the fourth timer circuit T4 are also connected to the first and second input terminals of the OR gate OR2.
, is connected to the NPN transistor T via the resistor R4.
Connected to the base of r8. The collector of this transistor Trs is a light emitting diode LED.

and resistor R3 are sequentially connected to the positive power source, and the emitter is grounded. The output terminal of the AND3 is the third input terminal of the OR gate OR3, and the output terminal of the AND3 is the third input terminal of the OR gate OR3.
The output terminal of ND4 is connected to the first input terminal of OR gate OR, and the output terminal of AND is the third input terminal of OR gate OR4, and the output terminal of AND6 is connected to the first input terminal of OR gate OR4. Connected. here,
The second input terminals of the OR gates OR3 to OR are connected to control output terminals b-d of the manual switch circuits M and SW.

The output terminal of the OR gate OR is connected via a resistor R6 to the base of an NPN transistor Tr4 whose emitter is grounded, and the collector of the transistor Tr4 is connected to a PNP transistor T whose emitter is connected to the positive power supply.
It is connected to the base of rs via a resistor R1. The collector of the transistor Tri is connected to one end of solenoids SL and SR, the other end of which is grounded. Here, the solenoids SL and SR are used as means for switching the electric remote control mirror 13 in the upper, lower, left, and right direction, respectively, and the solenoid SL is for the left mirror,
Solenoid SR performs switching for the right mirror.

The output terminal of OR is an NPN transistor Tr6 whose collector is connected to the positive power supply via a resistor R0.
The emitter of the transistor Tr6 is connected to the base of an NPN transistor Try whose emitter is grounded. In this case, the collector of the transistor TrlH is connected to the collector of the PNP transistor Tr7, and the collector of the transistor TrlH is connected to the collector of the PNP transistor Tr7.
The emitter of y is connected to the positive power supply.

The output terminal of OR is an NPN transistor Tr1 whose collector is connected to the positive power supply via a resistor R11.
The emitter of the transistor Tr16 is an NP whose emitter is grounded.
Connected to the base of N-type transistor Tr11.

In this case, the collector of the transistor Trll is connected to the collector of the PNP transistor Tr+, and the emitter of the transistor Tr9 is connected to the positive power supply +. Here, both collectors of transistor Tre + Trtt
A resistor RIO is connected between the connection point and the bases of the transistors Trq, and the transistors Tr7,
Both collector connection points of TrB and transistor Tre
A resistor R11 is connected between the paces.

Further, a left mirror drive motor ML is connected between both collector connection points of the transistors Tr7 and Trg and between both collector connection points of the transistor Tri + Trll.

In addition, manual switch circuits M and S are included in the gate circuit 11.
Control output terminals e and f of W are derived, and this terminal e
, f and the right mirror drive motor MR in the electric remote control mirror 13, a circuit similar to the circuit configured between the OR gates OR4, OR and the motor ML is connected to resistors RI4 to MR as shown in the figure. R1, and transistors Tr12 to Tr1.

Further, the manual switch circuits M and SW are constructed as shown in FIG. That is, solenoid SL.

A first switch SV1/s for turning SR ON and OFF; second and third switches SW8 and SW for selectively changing the direction of Mirano deflection to left or right and up or down;

A known changeover switch unit 17 consisting of a fourth switch 5WL-R for switching between left and right sides of the mirror to be angle-shifted, and P between this changeover switch unit 17 and control output terminals 0 to 1.
The main structure includes NP-type transistors Tr Ig to Trgt and backflow blocking diodes D and D6. In this case, one end of the first switch S is connected to a power supply terminal a, and the other end is connected to a control output terminal and grounded via a resistor IR2g.

The second and third switches swa, sw each have one fixed contact connected to the power supply terminal a, and the other fixed contact grounded. The movable contact of the second switch swa is connected to the emitter of the transistor Tr1g and also to the base of the transistor Tr+n via a resistor its. The movable contact of the third switch SWb is connected to the movable contact of the fourth switch 5WL-H.

The transistor T r 1B B has a collector connected to the control output terminal C and is grounded via a resistor Rto, and a base that sequentially valves a resistor R1I and a backflow blocking diode D3 of the polarity shown in the figure to connect the fourth switch '5WL.
- Connected to the left mirror side fixed contact of R. The transistor Tr1g has a collector connected to the control output terminal d and grounded via a resistor R2t, and an emitter connected to the fourth switch 5WL- through a backflow blocking diode D4 having a polarity opposite to that of the diode D. Connected to the fixed contact on the left mirror side of H. Note that between the control output terminals e, f and the right mirror side fixed contact R of the fourth switch 5WL-H, there is a connection between the control output terminals e, d and the left mirror side fixed contact R of the fourth switch 5WL-H. As shown in the figure, a circuit similar to the circuit configured in
o + Trgt J- consists of diodes D, , D, and resistors R24-R27.

Next, the operation of the apparatus of the present invention having the above configuration will be explained. In actual use, the manual switch circuit M,
Set the left and right mirrors to the required positions (eye points) during normal driving by operating the SW.

In the state before the automatic angle change operation, the output covers of the first to fourth timer circuits T, -T4 are at 'Low level' (hereinafter simply referred to as 1L'), and the AND gates AND3 to AN
The output of D6 is also 1L', and the outputs of the OR gates OR3 to OR are also 1L', so the mirror drive circuit 12 does not operate, and both the left and right mirrors are stopped.

If you press the switch SW to automatically change the angle of the mirror 13 when parking or pulling over, the animation will start.
The output of AND is 'H1gh level' (hereinafter simply 1H
1) to %L', which causes the capacitor C1 to generate a negative trigger pulse, turning on the first and fourth timer circuits Ti and T4. When the output of the first timer circuit T is 1H' (time t), the output of the OR gate OR is also 1H', transistor Tr4 is turned on, transistor Trs is also turned on, and solenoids SL and SR are energized. It works. At the same time, the first
and the fourth timer circuit T, , T, and the output of AND3 becomes H',
The output of the OR gate OR3 also becomes 1H'. As a result, when the transistor Tr1o turns on, the transistor Tr11
is ON t, and the transistor Tr7 is also turned ON, so the motor ML is energized with the current 'IL and rotates in the forward direction.
Tilt the left mirror downward.

From this state, the time measurement of the first timer circuit T1 ends,
When the output changes from I■1 to 1L', at that moment, the negative trigger I (second
The timer circuit T is turned on and its output becomes H'. At this time, since the outputs of the first and third timer circuits T, , T3 are 1L', ant game) AND, ~AN
The output of D is also tL #1, so the OR gate OR゛3~
The output of OR is also 1L', and the solenoid SL.

The SR and the motor ML9MR are not operated, and the left mirror angle movement is temporarily stopped while the output of the second timer circuit T is at 11 (') (time 11).

Next, when the second timer circuit T2 finishes counting and its output changes from 1H1 to %L', the third timer circuit T is turned ON by the negative trigger pulse generated by the capacitor C4. , its output becomes @H'. At this time, the fourth timer circuit T4 is measuring time, and its output is %
Since it remains at H', the output of the AND gate AND becomes 1H', so OR.

The output of is also 1H'. Therefore, similarly to the above, the transistors Trio + Trts + Try are turned on, and the motor ML is supplied with current 11L and rotates in the normal direction. At this time, as described above, the solenoid SL is not operating, so the left mirror is deflected to the right, and the third timer circuit T is activated.

It stops after the time t set in is completed.

After the above-mentioned angle changing operation of the left mirror is completed, the driver performs an operation such as parking the vehicle. Note that the outputs of each circuit at this time are as follows: the fourth timer circuit T4 remains at 1H', the first to third timer circuits T1 to T3 remain at 1L', the OR gate is at 1L', the NOR gate is at %LI, and the NOR gate is at 1L'. NOR, is %
I(I, AND gate AND, is 1L1 and AND gate is 1H'.

After entering the garage, etc., if you press the switch again to return the left mirror to its original position, the AND gate will be activated.

The output of capacitor C! changes from 1H' to 1L'. The fourth timer circuit T4 generates a more negative trigger pulse.
to be reset. At the moment when the fourth timer circuit T4 is reset and its output changes from %H'' to 1L', a negative trigger pulse is generated from the capacitor C3, but this pulse is passed through the diode D to the first timer circuit T, and turns on the first timer circuit T.
While the timer circuit T is ON I and its output is at H' (time t'), the solenoids SL and SR operate in the same manner as during the angle change described above.

At this time, the output of the fourth timer circuit T4 is 1L', and the output of the inverter I NV is 1H1, so
The output of the AND gate AND becomes H', and the output of the OR gate OR4 becomes +lH'. Therefore, the transistors Tr6, Trg, and Trs are turned ON in sequence, and the motor ML is supplied with a current of 12L, causing the motor ML to rotate in the reverse direction, first returning the left mirror upward. Next, the second
Due to the operation of the timer circuit T2, the recovery of the left mirror is temporarily suspended for the operating time t2. When the second timer circuit T2 finishes timing and its output changes from 1H' to 1L', the third timer circuit T3 is turned ON by the negative trigger pulse generated by the capacitor c4 at that moment. %HI. At this time, inverter I NV
Since the output of , is also 1H', the output of the AND gate AND, is H', and the output of OR4 is 4 'H'.
It will be. Therefore, the transistors Tr6, Tr6 and Tr9 are turned on in sequence, and the motor ML is supplied with a current of 12L and rotates in reverse. At this time, as mentioned above, the solenoid SL is not operating, so the left mirror returns to the left direction, and after the third timer circuit T finishes timing t'3,
Return to the original position and stop.

In the above explanation, we have explained the case where the left mirror is returned to its original position by pressing the switch SW after an operation such as parking the garage, but even if the switch SW is not pressed, the fourth timer circuit T finishes timing and the When the output goes from %H1 to 1L#, a negative trigger pulse is generated from the capacitor C6 at that moment, and this is input to the first timer circuit T via the power 1 diode D1, so press the switch history. The left mirror automatically returns to its original position. Note that the diodes D, , D, and the capacitor C
, (or C3) to prevent pulse generation from becoming difficult due to backflow from the capacitor C3 (t or C,).

Next, the operation of the manual switch power supply circuit 15 will be described. In this circuit 15, the left mirror automatically changes angle.

During the return operation, power is not supplied to the manual switch circuits M and SW, making the operation (mirror manual operation) impossible. That is, in the state before the automatic angle change operation and after the automatic return operation, the outputs of the first to fourth timer circuits T, ~T4 are %Lj, and the AND gate AN
Dll-A book. The output is also % LI, ORKET OR,
The output of ~OR, also becomes % L j, and the mirror pivot circuit 1
2 does not operate, and both the left and right mirrors 13 are stopped.

Also, OR, is %Ll and the fourth
The output of timer circuit T4 is also 1L' (Ote/7ke)
The output of NOR is ``H'', and the AND gate AND
The output of , becomes 1H'. Therefore, transistor Tr1
is ON L, transistor Tr2 is also turned ON, and the positive power supply is supplied to the manual switch circuit M and SW from the power supply terminal a, making it possible to manually operate the mirror. If the switch SW is pressed from this state, the 1st to 4th timer circuit T
,~T4 is turned ON as shown in FIG. 2, and the Noah gate NOR,
The output is 1L'. Therefore, the output of the AND gate AND becomes 1L', and the transistors Trl and Try
is turned off, and the power supply to the manual switch circuits M and SW is cut off.

The automatic operation display circuit 16 displays the automatic angle change and automatic return operations by lighting a light emitting diode LED. That is, during automatic angle changing and return operations, the first to fourth timer circuits T, -T.

At least one of them is in the ON state (see FIG. 2). Therefore, during that time, the output of OR, is 1H'
When the transistor Tra is in the ON state, the light emitting diode LED lights up. At this time, resistance R
5 limits the current to the light emitting diode IJD1.

It should be noted that, outside of the above-mentioned automatic operation, the left and right mirrors can be angled in a desired direction by operating the manual switch circuits M and SW. That is, if only the movable contact of the second switch SW is switched and connected to the power supply terminal a side from the state shown in FIG. . Therefore, the output of OR gate OR4 also becomes %H', and the motor ML is energized with current '2L' and reverses.
Turn the left mirror to the left.

At this time, if the first switch sws is ON, the control output terminal becomes 1H', and the output of OR3 also becomes '11', and solenoid 5L (sR) is energized, so the left mirror moves upward. change the angle to

Moreover, if only the movable contact of the third switch SWb is switched and connected to the power supply terminal a side from the state shown in FIG.
te is turned on when the base current is applied, and the control output terminal d
becomes 1H'. Therefore, the output of the OR gate OR, is also '
H', the motor ML is energized with the current 'IL, rotates in the normal direction, and changes the angle of the left mirror to the right.

At this time, if the first switch sws is ON, the control output terminal becomes 1H', the output of OR3 also becomes ``H1'', and the solenoid 5L (SR) is also energized, so the left mirror is lowered. Regarding the 10 right mirror that changes direction, if the movable contact of the 4th switch, 5WL-H, is switched and connected to the fixed contact R on the right mirror side, it will operate in the same way as the left mirror described above. The first to fourth switches sws, swa, sw, etc.

The relationship between the level of each control output terminal b-f due to the switching connection of 5WL-H, the normal current 9 rotation direction of the motor ML1MR, and the deflection direction of the left and right mirrors is summarized in Table 1 below. It is.

As detailed above in Table 1, according to the present invention, it is possible to automatically change the angle of the mirror to a preset position by simply operating a switch, and in this case, after the mirror remains stationary for a certain period of time, it automatically changes its angle. The mirror returns to its original position. Moreover, when necessary, the mirror can be returned to its original position and returned to the eye point by operating the switch again when the camera is stationary, making it extremely convenient to be able to accurately and easily change the mirror field of view. In addition, in the present invention, by deflecting the mirror downward and then inward (leftward or rightward), it is possible to visually recognize the vicinity of the tire. For example, it is advantageous when parking in a garage, pulling over, passing each other on a narrow road, etc., and when you want to see the very vicinity of the tires, such as the road shoulder, gutter, curb, etc. on the opposite side of the driver. This has the effect of allowing accurate and safe driving without relying on intuition. Also,
To completely disconnect the switching mechanism such as a clutch between downward deflection and inward deflection (left or right direction), and between upward return and outward return. Since the pause time is provided, it is possible to minimize the positional deviation of the mirror at the end of the angle change and return, and has the effect of eliminating the inconvenience of having to frequently adjust the eye point.

Furthermore, by providing the angle change command circuit and the return command circuit, the angle change and return signals can be output with the same operation of one switch, so fewer switches are required, the operation is simple, and This also has the effect of reducing costs. Furthermore, the present invention provides a signal to be applied to the mirror drive circuit via the gate circuit when the transistor is turned on,
Since a signal with a large level difference is obtained by turning it off, it is possible to prevent malfunctions caused by noise in the power supply, and in this case, the changeover switch section is the same as the conventional one, so it can be applied to existing manual switch circuits. There is also this effect.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing a basic example of a variable angle control device for an electric remote control mirror according to the present invention, and Fig. 2 (
a) to d) are timing diagrams of the output of each timer circuit, FIG. 3 is a circuit diagram showing a specific example of the device of the present invention shown in FIG. 1, and FIG. 4 is a diagram of the manual switch circuit in FIG. 3. It is a figure showing an example. 1, SW...switch, 2... angle change command circuit,
3...Return command circuit, 4, 6, 8, 10. T, ~T4
...Timer circuit, 5, 7, 9, C3 to C6
...Trigger circuit, 11, ...Gate circuit, 12.
...Mirror drive circuit, 13...Electric remote control mirror, 14, M, SW-...Manual switch circuit, MLlMR...Mirror drive motor, 5LIS
R...Solenoid, SWS...1st switch, SW
. ...Second switch, SWb...Third switch, Tr
Ig -Tr21...Transistor, D, ~D6.
・Reverse flow blocking diode. Patent Applicant Ichikoh Industries Co., Ltd. Agent Patent Attorney Tadashi Akimoto Figure 2 Figure 4

Claims (1)

[Claims] One mirror drive motor is provided for each mirror to be deflected, and a switching means is provided for switching the driving force transmission direction of the motor, and the one motor is used to deflect the mirror in both the vertical and horizontal directions. In an electric remote control mirror that performs It is equipped with three trigger circuits and gate circuits, a mirror drive circuit, and a manual switch circuit that manually tilts the mirror in a desired direction, and the tilt command circuit is switched when the first to fourth timer circuits are all in the OFF state. The first and fourth timer circuits are turned on by turning on the
N, and the return command circuit is configured to turn off the fourth timer circuit by turning on a switch when only the fourth timer circuit among the first to fourth timer circuits is in the ON state, and the return command circuit is configured to turn off the fourth timer circuit by turning on a switch. The circuits are configured to operate and output a trigger pulse at the moment each timer circuit turns from ON to OFF, and the first timer circuit switches the direction of transmission of the driving force of the mirror drive motor via the mirror drive circuit. At the same time, the first trigger circuit is operated to turn on the second timer circuit, the second timer circuit operates the second trigger circuit to turn on the third timer circuit, and the fourth timer circuit is activated. O at the end of the timing operation or by a signal from the return command circuit
They are each configured to operate the third trigger circuit and turn on the first timer circuit again at the moment of FF, and the gate circuit rotates the mirror drive motor forward or backward depending on the output from the first to fourth timer circuits. The mirror is configured to apply a reversal signal to the mirror drive circuit, and when the switch is turned on, the mirror automatically shifts downward for a time set by a first timer circuit, and pauses for a time set by a second timer circuit.
Thereafter, the angle is turned to the right or left for the time set by the third timer circuit and remains stationary, and when the fourth timer circuit finishes timing or the switch is turned on again, it returns to the upward direction for the time set by the first timer circuit; The manual switch circuit is configured to pause for a set time of the second timer circuit, then return to the left or right direction for a set time of the third timer circuit and stop, and the manual switch circuit turns on the switching means.
A first switch that is turned off, a second and third switch whose movable contact is selectively connected to either the power supply side or the ground side, and a movable contact of the second switch which is connected to the power supply side and the second When the movable contacts of the three switches are connected to the ground side, a base current is passed through the first reverse current blocking diode, and a signal for forward or reverse rotation of the mirror drive motor is sent to the mirror drive circuit via the gate circuit. give,
A first transistor that changes the angle of the second switch in one desired direction, and a second reverse current blocker when the movable contact of the second switch is connected to the ground side and the movable contact of the third switch is connected to the power supply side. The base current is passed through the mirror diode, and the mirror drive circuit is passed through the gate circuit to the mirror drive circuit.
211, and a second transistor that provides a signal for reverse or forward rotation of the motor and changes the angle of the mirror in a desired other direction, and a signal that is provided to the mirror drive circuit via a gate circuit by turning the transistor ON and OFF. A variable angle control device for an electric remote control mirror, characterized in that a signal with a large difference in level is obtained by obtaining a signal with a large difference in level.