JPS592949A - Angle variation controller for motor-driven remote control mirror - Google Patents

Abstract

PURPOSE:To prevent malfunction resulting from a noise from occurring, by constituting a manual switch circuit of a remote control mirror with a changeover swich part, a luminous diode to be provided between the switch part and a control output terminal and a photocoupler. CONSTITUTION:A manual switch circuit of a remote control mirror is constituted with a changeover swtich part 17, luminous diodes LED2-LED5 among the said changeover switch 17 and control output terminals c-f and phototransistors PHTr1-PHTr4 which constitute a photocoupler along with the diodes. Now, when only a contact point of a switch SWa is switched, the diode LED2 becomes luminous, the phototransistor PHTr1 is turned ON and the terminal (c) is turned into ''H''. A motor, therefore, is driven through a gate circuit and a mirror driving circuit and an angle of a left side mirror is varied to the left. When a switch SWS is turned ON, a terminal (n) 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 a variable angle control device for an electric remote control mirror having an automatic variable angle 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 morph. The present invention 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.

Conventionally, when you turn on a switch, the movable remote control mirror automatically shifts to the left, right, or up or down, and after being stationary for a certain period of time, it automatically shifts again. The structure is such that it returns to its original position by changing the angle in the opposite direction.

Original position (tj) The position of the mirror during normal driving is called the eye point, and is the most appropriate mirror position during normal driving.

Such remote control mirrors are used to temporarily shift the mirror from the eye point when changing lanes from normal driving, parking in a garage, or pulling over to the side of the vehicle to visually check the position near the vehicle body. However, the above-mentioned conventional technology uses an electric outside mirror on the side opposite to the driver's seat (left side in Japanese cars) to automatically turn the electric mirror to see the road shoulder, gutter, curb, etc. Even if you change the angle, if you just change the angle directly below from the normal eye point, the car's podium will actually get in the way, making it virtually impossible to see anything very close to the tires.

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 to the original position immediately. Furthermore, with conventional mirrors, the level difference between the output terminals of the manual switch circuit when the switch is ON and OFF is small, making it susceptible to the effects of noise, etc.
, there is also the problem that there is a risk of malfunction.

In view of the above-mentioned circumstances, the present invention is an electric remote control mirror that automatically deflects directly downward and then continues toward the inside of the vehicle (to the right in Japanese cars), thereby changing the direction of the tire pole of the vehicle ( 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.

Further, 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. It is an object.

Furthermore, with the above configuration, when the downward deflection is followed by the forward (or left) deflection or when returning,
In the case of a one-motor type, such as the present invention, which has one motor and is equipped with means for switching the driving force transmission direction, the clutch, etc. that is already engaged while the motor is still rotating, etc. It takes some time for the switching mechanism to turn off completely, and there may be a positional misalignment at the end of the angle change and return, and if the opening is narrow or used repeatedly, this misalignment will accumulate and become larger. There is a risk that the desired field of view may no longer be obtained and the eyepoint must be adjusted and set again. Therefore, in the present invention, in order to eliminate such a problem, 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 turning operation (clutch disengagement '#=) is completed, rotate the motor again to change the angle to the right (or left for °), and do the same when returning. The purpose of this invention is to reduce the positional deviation at the corner and the end of return, eliminate the need to frequently set the eyepoint, and make it 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.
The purpose is to widen the level difference at the output terminal between the N time and the OFF time to prevent 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, 1 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. 2nd and 3rd trigger circuits 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.0, 6
is a second timer circuit, which is used to set the pause time. 8 is a third timer circuit, which changes the direction of the left mirror to the right (or the right mirror to the left) and the left mirror to the left (or to the right of the right mirror).
Used to set the operating time of the motor when returning to direction. 1o
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 as to whether the angle should be changed or restored, and also sends a signal to the gate circuit 11 when the timing ends or a return command circuit is sent. The third trigger circuit 9 generates a trigger signal at the moment the third trigger circuit 9 is turned off by the reset signal from the third trigger circuit 9.

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 normal 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 serving as a switching means by the output of the first timer circuit 4;
The gate circuit 11 rotates the motor in the forward or reverse direction based on the output.

Here, the first to fourth timer circuits 4,6°8.10
When the switch 1 is pressed when all of the are in the OFF state, the angle change command circuit 2 is selected by the signal from the gate circuit 11, and a trigger signal is generated, and the first and fourth timer circuits 4,
10 is turned on. Further, when the first to third timer circuits 4, 6.8 are in the off state and only the fourth timer circuit 10 is in the on state, when the switch 1 is pressed, the return command circuit 3 is activated by being selected by the signal from the gate circuit li. The fourth timer circuit 10 is reset and turned off. Even if the switch is pressed while any one of the first to third timer circuits 4, 6.8 is on, neither the angle change command circuit 2 nor the return command circuit 3 will work due to the signal from the gate circuit 11.

In addition, in FIG. 1, 13 is a one-motor electric remote control four-view 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.

Each timer circuit 4, 6 is shown in FIG. 2 (a) to d).
, 8° IO output timing diagram is shown. In this case, FIG. 2(a) shows the ON time t4 of the fourth timer circuit 10(7).
+ (b) shows the ON time t and tJ of the first timer circuit 4, and (c) shows the ON time t of the second timer circuit 6.
, and t: (d) indicate the ON times t3 and t'3 of the third timer circuit 8, respectively. Also, in the figure, jt=j'
1112 = t/, t t3 = t'3, and at tl, the switching means (solenoid) operates and the motor rotates forward 1-,
The time t3 during which the mirror is deflected downward is the time during which the motor rotates forward and the mirror is deflected to the right (or left). 1
/ is the time when the switching means (solenoid) is activated, the motor is reversed, and the mirror returns upward; t'3 is the time when the motor is reversed and the mirror is returned to the left (or right) direction. tl and 1/2 are rest times, (t4 (L+
10h+ts)) is the time during which the mirror remains stationary after completing the angle change. That is, by pressing switch 1, time advances as tl → t2 → t3, and at the moment when the fourth timer circuit 10 is turned off, it ends at 1/1 → 1/2 → t'3 and returns to the original position. return.

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 push button switch SW whose one end is grounded. The other end of this switch SW is a resistor R1
Connected to Seiden Ryo + via) AND, and AND,
are connected to each first input terminal of the. The second input terminal of the AND gate AND is connected to the output terminal of the NOR gate NOR□, and the output terminal sequentially operates the capacitor C and the diode D1 having the polarity shown, and is connected to the input terminal of the first timer circuit Ti. The output terminal of the first timer circuit T1 is connected to the input terminal of the third timer circuit T via a capacitor C3, a second timer circuit T, and a capacitor C4 in this order.

The fourth timer circuit T4 has an input terminal connected to the capacitor C0.
and the diode D1, and the output terminal fires the capacitor C5 and the diode with the polarity shown.
Connected to the input end of the timer circuit TI.

(The second input terminal is NOAG)
Connected to the output terminal of NOR, and the output terminal is connected to capacitor C2.
It is connected to the reset terminal of the fourth timer circuit T4 via. Further, the output terminal of the above-mentioned ant gate (AND) is connected to the base of the NPN transistor (I') Tr- via a resistor R1. The collector of this transistor Trr is connected to the base of the PNP transistor l'ri via a resistor R8, and the emitter is grounded. In addition, the emitter of the transistor Try is connected to the positive source +,
The collector is connected to the power supply terminal a of the manual switch circuit ~r, sW.

The output terminals of the first to third timer circuits '11 to 18 are connected to the first to third input terminals of OR. Of these, the output terminal of the first timer circuit '11 is connected to the first input terminal of OR, and the ant game
) ANDs, AND, are also connected to each $1 input terminal, and the output terminal of the third timer circuit T8 is connected to the AND gates AND, ,
It is also connected to each input terminal of AND. The output terminal of the fourth timer circuit '1゛4 is ANDGOO)ANJJ8゜ANL
) 4 and the said No.) tl
are directly connected to the first input terminals of the inverter IN.
Each second of the AND gates AND, , AND6 through V1
Connected to the input end. Also, the above-mentioned Noag) N(J)
The second input terminal of tl is AND
, and the OR gate OR1 is connected to the first input terminal of the OR gate
connected to the output end of the The output terminals of the OR gate OR1 and the fourth timer circuit 1-4 are also connected to the first and second input terminals of the OR gate OR2. (type) is connected to the base of transistor 1"8. This transistor Trs has a collector whose collector is a light emitting diode L)!; 1)
, and resistor R3 are sequentially connected to the positive control source, and the emitter is grounded. The output terminal of the above AND is the third input terminal of the OR gate OR5, and the output terminal of the AND is the third input terminal of the OR gate OR5.
The output terminal of NL)4 is the first input terminal of 0ILS, and the output terminal of AND gate ANL) is the OR gate uit.
.

The third input terminal of ANLI6 and the output terminal of ANLI6 are respectively connected to the first input terminal of the OR gate O. Here, the second input terminals of the OR gates O)t, ~(JR,) are connected to control output terminals b-d of the manual switch circuits M and SW.

Further, the output terminal of the OR gate OR is connected to the base of an NPN transistor i'r40 whose emitter is grounded via a resistor R6, and the collector of the transistor i'r4 is a PNP type whose emitter is connected to the positive gate source. It is connected to the base of the transistor Trs via a resistor R7. The collector of the transistor Trs is connected to one end of the solenoids SL and SR, each of which has the other end grounded. here,
Solenoids SL and SR are used as means for switching the upper, lower, left, and right deflection directions of each of the tortoise-type remote control mirrors 13, and the solenoid SL is for the left mirror, and the solenoid SR is for the left mirror. Switches the right mirror.

The output terminal of OR is an NPN transistor Tr whose collector is connected to the positive power supply via resistor R1.
The emitter of the transistor Tr6 is connected to the base of an NPN transistor Trs whose emitter is grounded.

In this case, the collector of the transistor Trs is connected to the collector of the PNP transistor i'rr, and the emitter of the transistor Try is connected to the positive terminal.

The output terminal of the OR gate is an NPN transistor Tr whose collector is connected to the positive power supply terminal via a resistor R and □.
The emitter of the transistor 1'rt@ is connected to the base of an NPN transistor 'l'r11 whose emitter is grounded. In this case, the collector of the transistor Tr1t is P
The NP type transistor] is connected to the collector of r9, and the emitter of the transistor Trs is connected to the positive power source. Here, the transistors 'I'r 9 , i'r
A resistor R10 is connected between both the collector connection points of the transistors 'l'r7 and 1''rs and between the bases of the transistor i'r7, and a resistor is connected between the collector connection points of the transistors 'l'r7 and 1''rs and between the bases of the transistor Tr*. ”11 is connected. Furthermore, the transistors Try, T
Both collector connection points of r g and transistor 'I'r
A left mirror drive motor M is connected between the collector connection points of e and 'l'ru.

Note that a manual switch circuit M is included in the gate circuit 11.

Control output terminals e and f of SW are led out, and between these terminals e and f and the right mirror drive motor MR in the electric remote control mirror 13, As shown in the figure, a circuit similar to the circuit configured between the resistors 1 (14 to
"ill and transistor i'r 12~i'r I
? It is made up of.

Further, the manual switch circuits M and SW are constructed as shown in FIG. In other words, the solenoids SL and SR are set to O.
N, the first switch SWS is turned off, the second and third switches 5vv3 and SWb are used to selectively change the deflection direction of the mirror to left or right and up or down; 4 switch 5WL-R
a known changeover switch section 17, and second to fourth switches SWa, SWb, 5WL of this changeover switch section 17;
- a light emitting diode LED selectively emitted by R;
~I l) 5 and this light emitting diode LED, ~Ll,
and a phototransistor PHT, each of which constitutes a photocoupler.
The main structure is composed of 'rl to PH1'r4. In this case, one end of the first switch SWS is connected to the power supply terminal a, and the other end is connected to the control output terminal A and grounded via a resistor Rgs. The second and third switches 5Vva and SWb each have one fixed contact connected to the power supply terminal a and the other fixed contact grounded. and,
The movable contacts of the second switch SWa are light emitting diodes lJ:DQ, LED, and 111! connected in antiparallel, respectively.
:11, 11JED, are connected via a resistor R24. In this case, the light emitting diode LEl)2. I,
El).

The other end is a light emitting diode lJ:LI4. at the left mirror side fixed contact of the fourth switch 5WL-)t. LEL), the other ends of which are respectively connected to the right mirror side fixed contact H of the fourth switch 5WL-4. Further, the movable contact of the third switch SWb is connected to the movable contact of the fourth switch 5WL-4.

The collector of the phototransistor P H'rr1, which constitutes a photocoupler with the light emitting diode LED2, is connected to the resistor 1 (2
It is connected to the power supply terminal a through ゜ and the inverter I
It is connected to the control output terminal C via NV2. Furthermore, the collector of the phototransistor PH'l'r2, which constitutes a photocoupler with the light emitting diode lJ:l), is connected to the resistor R2I.
is connected to the power supply terminal a via the inverter IN
V, and is connected to the control output terminal d. Similarly, the collector of the phototransistor PH1'rs is connected to the power supply terminal a via the resistor R,2, and the inverter INV
4 to the control output terminal e. Further, the collector of the phototransistor PH'L''x is connected to the power supply terminal a via the resistor Rta, and is also connected to the control output terminal f via the inverter INV.The emitters of the phototransistors PHTrl to PHTrn are Each is grounded.

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,
By operating the SW, set the left and right mirrors to a safe position (eye point) during normal driving.

In the state before the automatic angle change operation, the outputs of the first to fourth timer circuits 1'1 to T4 are at 'Low level' (hereinafter referred to as
(simply written as 'L''), Antogame) ANI), ~
The output of AND is also 'L'', or
The output of K6 also becomes L'', 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, press the switch SW to automatically change the angle of mirror 13.
The output of ANDl is "High level" (hereinafter simply "H")
) to L'', which causes the capacitor C1
generates a negative trigger pulse, causing the first and fourth retimer circuits 'l'1.T4 to (JN).

1st r/f-mer circuit T1. While the output of the OR gate 01t is in use (time 11), the output of the OR gate 01t is also 61], and the transistor i'z is ON, so the transistor i'
rs also (JN), and solenoids SL and SR are energized and operate.

At the same time, the first and fourth timer circuits 'l', , '
The output of ANLI8 becomes H', and the output of OR gate (ls is also used).

As a result, when transistor l'r I (l turns on, transistor Tri turns on, and further transistor T
r7 is also turned ON, and therefore, the motor ML is supplied with current 'IL and rotates in the normal direction, thereby deflecting the left mirror downward.

From this state, when the first timer circuit 'l゛1 finishes timing and its output changes from °'H'' to 1.I+, at that moment, a negative trigger pulse generated by the capacitor C8 causes the second timer circuit T2 to (JNL, its output becomes H". At this time, the first and third timer circuits 1m,
i”, the output is “1. AND gate A because it is TI
The output of Nυ8~ANI) is also "L", so the output of the OR gate OR, ~OR, is also "L", and the solenoid SL.

SR and motor ML2MR do not operate, and the left mirror's angle variation is temporarily suspended only while the output of the second timer circuit '■' remains at H'' (time 1.).

Next, when the time measurement of the second timer circuit TII ends and its output changes from "H" to "L", at that moment, the negative trigger pulse generated by the capacitor C1 turns the "third timer circuit 1"8 ON. ,, its output becomes "H".

At this time, the fourth timer circuit T4 is measuring time and its output remains at H", so the AND gate ANI)4
The output of OR becomes H", and the output of OR is also H"
becomes. Therefore, as before, the transistor i'rto
, i'ro, 'rrt are turned on, and motor M
L is energized with current iIL and rotates in the normal direction. At this time, since the solenoid SL is not operating as described above, the left mirror changes its angle to the right and stops after the time t8 set by the third timer circuit T8 ends.

After the above-mentioned angle changing operation of the left mirror is completed, the driver performs an operation such as parking the vehicle. In addition, each circuit output at this time is "L" OR gate (JR) for the 4th timer circuit T4 as Hl+, and for the 1st to 3rd timer circuits to 1.8.

is ``L'', NO) t is ``L'', NOR gate NORM is ``H'', AND gate AND is ``L'', and AND gate AND is ``H''.

When the switch SW is pressed again to return the left mirror to its original position after entering the garage, etc., the output of the AND gate ANL) becomes "L", and the negative trigger pulse 2 is output from the capacitor C2. Generate the fourth timer circuit ゛r4
to be reset. At the moment when the fourth timer circuit 'L'4 is reset and its output becomes 'L', a negative trigger pulse is generated across the capacitor C5, which is passed through the diode L)2. 1 timer circuit T1, and turns on the first timer circuit 1'1. The first timer circuit 1'1 is ONL, and its output is 1''.
During the time (time t:), the solenoid 1"'R operates through the same operation as during the angle change described above. At this time, the output of the fourth timer circuit 1"4 is "1, 11". Since the output of inverter INV is "H", AND gate A
The output of ND becomes nHH, and the output of OR gate OR1 becomes nHn. Therefore, the transistor Trs, T
rs and Tri are turned on sequentially, and the motor ML has a current of '
IIL is energized and reversed, first returning the left mirror upward. Next, in the same way as when changing the angle, the second timer circuit T
Due to the operation of , the return of the left mirror is temporarily suspended for an operation time of 1/.

The second timer circuit T2 finishes timing, and its output becomes H'
At that moment, the negative trigger pulse generated by the capacitor C4 turns the third timer circuit 1'8 ON L, and its output becomes H''. At this time, since the output of inverter INV1 is also "H",
The output of D becomes "H", and the output of OR gate OR4 also becomes "H". Therefore, the transistors Tr+, Trs
and Trs are turned on sequentially, and the motor ML has a current of “ML”.
is energized and reversed. At this time, since the solenoid SL is not operating as described above, the left mirror returns to the left direction, and after the third timer circuit T finishes counting the time t', it returns to its original position and stops.

In the above explanation, the left mirror is returned to its original position by pressing the switch SW after an operation such as parking the garage. When the output changes from 14" to "L", a negative trigger pulse is generated from the capacitor C5 at that moment, and this is input to the first timer circuit 'l'1 through the diode D2, so the switch SW is turned on. It operates in the same way as when it is pressed, and the left mirror automatically returns to its original position.The diode L)1.L12 is the capacitor C1 (or C11), and when generating a negative trigger pulse, This is to prevent pulse generation from becoming difficult due to backflow from (or C1).

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

During the return operation, power is supplied to the manual switch circuits M and SW, thereby disabling manual operation of the mirror. That is, before the automatic angle change operation and after the automatic return operation, the outputs of the first to fourth timer circuits 1r1 to 'l'4 are II1. II, AND GO), ANl) 8 ~ ANI) 6 output is also @Lj
! The output of 0)t, ~0)t, is also Ill,
II, the mirror drive circuit 12 does not operate, and the mirror 1
3 is stopped on both the left and right. Also, oagu) OR
1 is "L" and the output of the fourth timer circuit T4 is also "L" as described above, so the output of NOR1 becomes "H++" and the output of the AND gate AND1 becomes "H". Therefore, transistor Trl is ON L, transistor Tr
2 is also turned on, positive electric atoms are supplied to the manual switch circuits M and SW from the power supply terminal a, and the mirror becomes ready for manual operation. If you press the switch SW in this state, the first
~The fourth timer circuits T1 to T4 are set to O as shown in FIG.
N0I (no goo until the automatic angle change and automatic return operations are completed) N0I (output of 1 becomes L". Therefore, ANDl) output of AND1 also becomes L", transistors Trl and l'rg turn OFF. Then, the power supply to the manual switch circuits M and SW is interrupted.

The automatic operation display circuit 16 displays the light emitting diodes l, I! during automatic angle change and automatic return operations. ;l) is displayed by lighting. That is, during automatic angle changing and return operations, at least one of the first to fourth timer circuits T1 to '1'4 is in the ON state (see FIG. 2).

Therefore, during that time, the output of the ORK gate OIL is "H", the transistor 'l'rs is in the ON state, and the light emitting diode lJ:D1 is lit.

At this time, the resistor R5 limits the current to the light emitting diode LED.

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, from the state shown in FIG. 4, only the second switch SW8 has its movable contact connected to the power terminal a.
When switched and connected to the side, the light emitting diode IJ! :l),
is energized via a resistor L24 provided for current limiting, and emits light. As a result, the phototransistor Pl('1
'eye ONL', its collector potential becomes 1L', and the control output terminal C connected to the output terminal of the inverter I N V 2 becomes H11. Therefore, the output of 'OK' and 'OK' becomes nHn, and the motor ML becomes t. Flow 121. is energized and reversed, turning the left mirror to the left. At this time, if the first switch SW8 is set, the control output terminal becomes H", and the output of 01-t. Since the solenoid 5L (SR) is also energized, the left mirror is deflected upward.

In addition, if only the movable contact of the third switch SWb is switched and connected to the power supply terminal a side from the illustrated state, the light emitting diode L
ED8 is energized and emits light, which turns the phototransistor PHTr+ ONL, and the control output terminal dIJ"-"
becomes. Therefore, the output of the motor (OR) also becomes 'H', and the motor ML is energized with a current of 11 and rotates in the normal direction, turning the left mirror to the right.At this time, the first switch SWS
If it is ON, the control output terminal SUMO IIHII becomes, and the outputs of OR, OR, also become H'', and the solenoid 5L (SR) is also energized, so the left mirror is deflected downward.

Regarding the right mirror, if the movable contact of the fourth switch 5WL-R is switched and connected to the fixed contact H on the right mirror side, it operates in the same manner as in the case of the left mirror described above.
or fourth switch sws, swa.

SWb, each control output terminal b by switching connection of 5WL4
−f level and the current flowing through motor ML1MR.

The relationship between the one-rotation direction and the deflection directions of the left and right mirrors is summarized in Table 1 below.

Table 1 As detailed above, 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, the mirror can be automatically changed to a preset position by simply operating a switch. The mirror will automatically return to its original position. Moreover, when you feel safe, you can always return the mirror to its original position and return it 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 (to the left or right), it is possible to visually recognize the vicinity of the tire. It is advantageous when parking in a garage, pulling over, passing each other on a narrow road, etc., when you want to see the road shoulder, gutter, curb, etc. on the opposite side of the driver, and when you want to see the very vicinity of the tires, without the need for an assistant. This has the effect of allowing accurate and safe driving without relying on intuition. Also, between the downward deflection and the inward deflection (left or right direction), and between the upward return and the outward return, the tip of the switching mechanism such as a clutch, etc. Since the pause time for separation is provided, the misalignment of the mirror at the end of the angle change and return can be minimized, and the inconvenience of having to frequently adjust the eye point can be avoided. 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 the number of switches can be reduced, and the operation is simple. It also has the effect of reducing costs. Furthermore, in the present invention, the signal given to the mirror drive circuit via the gate circuit is obtained by the ON, OF)' of the photo-receiving element of the photocoupler, resulting in a signal with a large level difference, thereby preventing malfunction due to noise in the power supply, etc. This can be prevented, and since the changeover switch section is the same as the conventional one, there is also the advantage that it can be applied to existing manual switch circuits.

[Brief explanation of 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, 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 angle command circuit, 3.
...Return command circuit, 4, 6, 8, 10, T,
~'l゛4...Timer circuit, 51719 + t-
, 5-C5...) Liquor circuit, 11... Gate N path, 12... Mirror drive circuit, 13... Electric 1 remote control mirror, 14, M, SW... Manual switch circuit, ML2M, R...Mirror drive motor, SL, SR...Solenoid, SWS...1st switch, SWa...2nd switch, SWb...3rd
Switch, LED. 5~LEL), ... light emitting diode, PHTrt -
PH"I'r4-phototransistor. Patent applicant Masami Akimoto, agent of Ichikoh Industries Co., Ltd., patent attorney

Claims (1)

[Claims] 5. One mirror drive motor is provided for each mirror to be angle-shifted, and a switching means is provided for switching the driving force transmission direction of the motor, and the one motor drives the mirror in both the vertical and horizontal directions. An electric remote control mirror 10 for changing the angle includes a switch, a beam angle command circuit and a return command circuit operated by the switch, first to fourth timer circuits, and a fourth timer circuit connected to the timer circuit. 1 to 3 trigger circuit, gate circuit, mirror drive circuit, and mirror manually.
5. Equipped with a manual switch circuit for changing the angle in a desired direction,
In the angle change command circuit, the first to fourth timer circuits are all OFF.
When in the F state, the first and fourth timer circuits are turned on by turning on the switch, and the return command circuit is turned on by turning on the switch 1 when only the fourth tie 2fl timer circuit among the first to fourth timer circuits is in the ON state. The fourth timer circuits are each configured to (JFF), the first to third trigger circuits are each configured to operate and output a trigger pulse at the moment when each timer circuit turns from ON to OFF, and the first timer circuit The circuit turns on a switching means for switching the driving force transmission direction of the mirror drive motor via the mirror drive circuit, and also operates the first tri-circuit.
2 timer circuit is turned on, the second timer circuit operates the second trigger circuit and turns on the third timer circuit,
The fourth timer circuits are each configured to operate the third trigger circuit to turn on the first timer circuit again at the end of its timekeeping operation range or at the moment it is turned off by a signal from the return command circuit, and the gate circuit is configured to operate the third trigger circuit to turn on the first timer circuit again. or configured to give a signal for forward or reverse rotation of the mirror drive motor to the mirror drive circuit in accordance with the output from the fourth timer circuit;
When the switch is turned on, the mirror automatically tilts downward for the time set by the first timer circuit, pauses for the time set by the second timer circuit, and then continues to tilt downward for the time set by the third timer circuit. Or turn to the left and stand still,
When the fourth timer circuit finishes timing or turns on the switch again, it returns to the upward direction for the time set by the first timer circuit, pauses for the time set by the second timer circuit, and then continues to the left for the time set by the third timer circuit. or return to the right direction and stop, and the manual switch circuit has a first switch that turns on the switching means,
The second and third switches have movable contacts selectively connected to either the power supply side or the ground side, and the movable contact of the second switch is connected to the power supply side, and the movable contact of the third switch is connected to the ground side. When connected to the side, the light-emitting element emits light and the light-receiving element turns ON, and a signal for forward or reverse rotation of the mirror drive motor is given to the mirror drive circuit via the gate circuit, changing the mirror in one desired direction. When the first photocoupler and the movable contact of the second switch are connected to the ground side and the movable contact of the third switch is connected to the power supply side, the light emitting element emits light and the light receiving element turns ONL and the gate circuit. The gate (
(b) A variable angle control device for an electric remote control mirror, characterized in that a signal with a large level difference is obtained by obtaining a signal applied to a mirror drive circuit via a path by turning on and off a photocoupler light receiving element;