JPH02128950A - Car mirror cleaning device - Google Patents

Abstract

PURPOSE:To reduce the number of switches used by furnishing a vibration driving means to drive an ultrasonic vibrator and an accommodation driving means to move a mirror between the accommodating position in the car body and the service position, and operating them selectively in accordance with the sort of operational signal associate with the operation of a single switch. CONSTITUTION:An ultrasonic vibrator 20 is jointed with the rear surface of a left and a right plate-shaped door mirror, and they 20 are driven controlledly by a left and a right mirror driving circuit 64, 65 in accordance with the output of a microcomputer 61. The door mirrors can be moved by an accommodation driving means consisting of relay circuits 71, 72 and a right and a left motor 73, 74 between the accommodation position in the car body and the service position. When a retract switch 51 is held on for a short while (approx. 2 sec), the mirror driving circuits 64, 65 are operated, and when held in On for a longer period of time, the accommodation driving means actuated, wherein selection of the left and right door mirrors is made by a slide switch 52.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a cleaning device for automobile mirrors that maintains the visibility of mirror surfaces such as fender mirrors and door mirrors. This invention relates to the structure of an automobile mirror cleaning device for removing ice, frost, fog, etc.

[Prior Art] A conventional example of this type of automobile mirror cleaning device includes the technology described in Japanese Utility Model Application Publication No. 61-30552.

FIG. 12 is a cross-sectional view of an automobile mirror cleaning device disposed outside the vehicle, which is disclosed in the above-mentioned publication.

In the figure, the rearview mirror installed on the outside of the vehicle is
Rearview mirror body 92 with glass mirror 91 attached
is supported by a stay 93, and an ultrasonic vibrator 94 made of ceramics, for example, is provided between the rearview mirror body 92 and the stay 93. This ultrasonic transducer 94 is connected to an operation switch 95 inside the vehicle so that it can be operated from inside the vehicle. A drive circuit 96 and a power source 97 are connected in series between the ultrasonic transducer 94 and the operation switch 95.

The drive circuit 96 amplifies the signal generated by the oscillator using an amplifier, sends it to the ultrasonic transducer 94, and vibrates the ultrasonic transducer 94 appropriately.

The conventional automobile mirror cleaning device using an ultrasonic transducer configured as described above can operate as follows.

When water droplets or the like adhere to the mirror surface of the rearview mirror, an operation switch 95 in the vehicle interior is operated to vibrate the ultrasonic transducer 94. The vibration of the ultrasonic transducer 94 can remove water droplets and the like attached to the mirror surface by vibrating the entire rearview mirror body 92.

[Problems to be Solved by the Invention] However, the operation switch 95 that uses the ultrasonic transducer 94 to completely remove water droplets etc. adhering to the surface of the mirror 91 does not require heating means bonded to the back surface of the mirror 91. or a switch for a storage driving means that moves the mirror 91 between a storage position and a use position of the vehicle body, or a switch that sets the angle of the surface of the mirror 91; Due to the increase in the number of switches due to electronics, it is becoming difficult to distinguish between switch types. In particular, if the driver operates the switches other than those used to open the circuit, the driver may be confused if the switches are operated accidentally.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an automobile mirror cleaning device with improved switch operability. Another object of the present invention is to provide a cleaning device for automobile mirrors that can be driven independently on the left and right sides.

[Means for Solving the Problems] A cleaning device for an automobile mirror according to a first aspect of the present invention includes a vibration driving means for driving an ultrasonic vibrator bonded to the back surface of a mirror having a predetermined curvature in a predetermined vibration mode; The storage driving means for moving the mirror between the storage position and the use position of the vehicle body is distinguished by the type of operation signal of a single switch.

A cleaning device for an automobile mirror according to a second aspect of the present invention includes: a vibration driving means for driving an ultrasonic vibrator bonded to the back surface of the mirror having a predetermined curvature in a predetermined vibration mode; and a heating means bonded to the back surface of the mirror. These are distinguished by the type of operation signal of a single switch.

In the automobile mirror cleaning device according to a third aspect of the present invention, the type of operation signal of the single switch is determined based on the duration of operation time.

A cleaning device for an automobile mirror according to a fourth aspect of the present invention includes: a vibration driving means for driving an ultrasonic vibrator bonded to the back surface of a mirror having a predetermined curvature in a predetermined vibration mode; and a heating means bonded to the back surface of the mirror. and a retracting drive means for moving the mirror between a retracted position and a use position of the vehicle body, which can be operated on only one side, left or right, by a one-sided selection switch.

[Function] According to claim 1, there is provided a vibration driving means for driving an ultrasonic vibrator bonded to the back surface of a mirror having a predetermined curvature in a predetermined vibration mode, and a vibration driving means for driving the ultrasonic transducer bonded to the back surface of a mirror having a predetermined curvature, and a vibration driving means for driving the ultrasonic transducer bonded to the back surface of a mirror having a predetermined curvature; Since the storage driving means for moving between the two can be distinguished by the type of operation signal of a single switch, the number of switches can be reduced, and since the functions are similar, it is easy to use.

In claim 2, the vibration driving means for driving the ultrasonic vibrator bonded to the back surface of the mirror having a predetermined curvature in a predetermined vibration mode and the heating means bonded to the back surface of the mirror are combined into a single switch. Since the switches can be distinguished by the type of operation signal, the number of switches can be reduced, and since the functions are similar, they are easy to use.

In claim 3, since the operation signal type of a single switch is determined by the duration of operation time,
It is easy to operate, and even beginners will not be able to make mistakes.

According to a fourth aspect of the present invention, a vibration driving means for driving an ultrasonic transducer bonded to the back surface of a mirror having a predetermined curvature in a predetermined vibration mode, a heating means bonded to the back surface of the mirror, and a heating device bonded to the back surface of the mirror; Since the retracting drive means that moves the vehicle body between the retracted position and the use position can be operated on only one side (left and right) using a one-sided selection switch, there is no need to drive the unnecessary one side, and it can be used in energy-saving mode. It can be used and its lifespan can be extended. Furthermore, on narrow roads, when you are passing a car or an obstacle, you can check the margin in the mirror on the opposite side.

[Example] Examples of the present invention will be described below.

FIG. 2 is a front view of a mirror 12 having mirror state detection means disposed on the surface of a car mirror cleaning device according to an embodiment of the present invention, and FIG. 3 is a plan view of FIG. 2. Also,
FIG. 4 is an explanatory diagram of a refracted wave in an automobile mirror cleaning device according to an embodiment of the present invention. FIG. 5 is a sectional view of the overall structure of the mirror body 10 of an automobile mirror cleaning device according to an embodiment of the present invention, and FIG. 6 is a sectional view of the mirror body 10 of an automobile mirror cleaning device according to an embodiment of the present invention. 10 is a perspective view of the vehicle as viewed from the front left side of the vehicle. FIG. 7 is a plan view of the mirror body shown in FIG. 6, viewed from above the vehicle.

2 to 4, a heater 24 serving as heating means is bonded to the back surface of the mirror 12 by adhesive, vapor deposition, sputtering, or the like.

A lead wire 25 and a lead wire 26 are connected to the heater 24 which is the heating means. Furthermore, a disk-shaped ultrasonic transducer 20 is bonded to the back surface of the mirror 12 with an adhesive. Specifically, the mirror-side electrode terminal 23 of the ultrasonic transducer 20 is bonded to the back surface of the mirror 2 12.

In particular, as the ultrasonic transducer 20 of this embodiment, an ultrasonic transducer element 22 made of piezoelectric ceramics using a piezo effect element is used. As shown in FIG. 3, the ultrasonic transducer 20 is composed of an electrode terminal 23 on the mirror side, an electrode terminal 21 on the anti-mirror side, and an ultrasonic transducer element 22. Then, the lead wire 15 is crimped to the electrode terminal 23 on the mirror side, and the lead wire 16 is crimped to the electrode terminal 21 on the anti-mirror side with a crimping tool or the like, or by crimping or the like, so that they are electrically and mechanically connected. .

When power is supplied between the lead wires 15 and 16 of the electrode terminal 23 on the mirror side and the electrode terminal 21 on the anti-mirror side shown in FIG.
(vertical direction in Fig. 3) and the ultrasonic transducer 20
It expands or contracts in the radial direction (horizontal direction in FIG. 3).

That is, in general, the ultrasonic transducer 20 has a longitudinal effect in which it expands and contracts in the same direction as the direction of the applied electric field, and a lateral effect in which it expands and contracts in a direction perpendicular to the direction of the applied electric field. and,
It has a characteristic that the resonant frequency due to the transverse effect is lower than the resonant frequency due to the longitudinal effect.

Therefore, in this embodiment, a bending wave is generated in the mirror 12 using the transverse effect. However, in some cases, such as mirrors with high resonance frequencies, it may be preferable to utilize the longitudinal effect. Therefore, when implementing the present invention, the present invention is not limited to generating bending waves in the mirror 12 using the transverse effect, but may also include a method in which the mirror 12 is expanded and contracted using the longitudinal effect. .

Next, the principle of bending the mirror 12 using the transverse effect of this embodiment will be described in detail with reference to FIG.

First, when the (+) terminal of the DC power source E is connected to the lead wire 15 and the (-) terminal of the DC power source E to the lead wire 16, a strong contraction force acts on the ultrasonic vibrator 20 in the radial direction due to the transverse effect. As shown in FIG. 4(a), the mirror 12 is placed downward.
is bent.

Furthermore, when the (-) terminal of the DC power source E is connected to the lead wire 15 and the (+) terminal of the DC power source E to the lead wire 16, a strong stretching force acts on the ultrasonic vibrator 20 in the radial direction due to the transverse effect. As shown in FIG. 4(b), the mirror 12 is placed upward.
is bent.

Then, when the output of the alternating current power source AC is supplied to the ultrasonic transducer 20, the mirror 12 is repeatedly bent as shown in FIG. 4(C). Here, if the frequency of the AC power applied to the ultrasonic transducer 20 is selected to be an appropriate frequency, the mirror 12 resonates, and a standing wave that is uniform and large in amplitude is generated throughout the mirror 12. This standing wave causes the mirror surface of the mirror 12 to vibrate at high speed. At this time, the water droplets adhering to the mirror surface are given high kinetic energy by the mirror 12, and drop or atomize due to gravity, causing the water droplets to drop onto the mirror 12.
water droplets and the like on the mirror surface are removed.

Note that at this time, since there is a unique resonant frequency determined by the shape of the ultrasonic transducer 20, the resonant frequency needs to be determined by considering both the resonant frequencies of the ultrasonic transducer 20 and the mirror 12. be. Incidentally, in this embodiment, the resonance frequency is set to 70[Kt[z] by using the natural vibration of the mirror 12 existing at 70[Kt[z] to 80[Ktlzl.
An ultrasonic transducer 20 of Hzl to 80 [KIIz] is used. However, since this natural frequency exists from a low frequency to a high frequency, other frequencies may be used.

Further, in FIG. 5, a metal frame 2 is fixed with tapping screws 3 within a synthetic resin mirror case 1 fixed to a vehicle body (not shown). A mirror base 4 made of synthetic resin is fixed to the frame 2 using a flexible ball (not shown) so as to be tiltable vertically and horizontally. Further, a mirror position driving means 5 is fixed to the frame 2 with screws. The mirror position driving means 5 has two output lots (not shown) that can be driven independently. One ends of the two output lots are connected to different positions on one surface of the mirror base 4, respectively. The mirror base 4 tilts vertically or horizontally when one or two output rods are driven by an operation by a vehicle occupant. The two output lots of the mirror position driving means 5 are:
Each is covered with a cover 6 or 7 made of synthetic rubber. One end of the cover 6 or the cover 7 is joined to the housing of the mirror position driving means 5, and the other end of the cover 6 or the cover 7 is joined to the mirror base 4. Note that the cover 6 or the cover 7 uses an accordion bellows so as not to obstruct the tilting movement of the mirror base 4.

A mirror holder 8 made of synthetic resin, aluminum, etc. is bonded to the mirror base 4. An engagement recess 11 is provided on the outer periphery of the mirror holder 8.
At 1, a holding member 9 made of a material having an acoustic impedance smaller than that of the mirror 12, such as synthetic rubber or synthetic resin such as urethane, is elongated around the entire circumference of the mirror 12. The engaging recess 1 is inserted through this holding member 9.
1 clamps the entire circumference of a plate-shaped mirror 12 and attaches the mirror 12 to a mirror holder 8.

An ultrasonic transducer 20 is bonded to the back surface of the mirror 12. Specifically, the mirror-side electrode terminal 23 of the ultrasonic transducer 20 is bonded to the back surface of the mirror 12 .

The ultrasonic transducer 20 of this embodiment. As such, an ultrasonic vibration element 22 made of piezoelectric ceramics using a piezo effect element is used. As shown in FIG. 2, the ultrasonic transducer 20 includes an electrode terminal 23 on the mirror side, an electrode terminal 21 on the anti-mirror side, and an ultrasonic transducer element 22. The lead wire 15 is electrically and mechanically connected to the electrode terminal 23 on the mirror side and the electrode terminal 21 on the anti-mirror side by soldering, by crimping with a crimping tool, or by caulking.

On the mirror case 1 side of the mirror base 4, a vibrator control means 14 is disposed between the mirror case 1 and the mirror case 1. The transducer control means 14 incorporates a voltage controlled oscillation circuit for driving the ultrasonic transducer 20, a power supply circuit, and the like.

Note that the vibrator control means 14 is driven and controlled by a switch provided inside the vehicle. The vibrator control means 14 is electrically and mechanically connected to the mirror holder 8 through a connector section.

In FIGS. 6 and 7, the vehicle side mirror 30 is disposed near the side window 33 so that the mirror 12 can be viewed from inside the vehicle through the side window 33. The vehicle side mirror 30 includes a mirror body 10 having a mirror 12, a mirror case 1, etc., and a housing base 31. The housing base 31 is fixed to the vehicle body 35. The mirror body 10 is rotatably supported on a housing base 31, and as shown in FIG. Can be rotated.

Note that the vehicle side mirror 30 is disposed not only on the left side of the vehicle but also on the right side. However, the side mirror disposed on the right side of the vehicle is the same as the vehicle side mirror 3.
Since it has the same structure and function as 0, a detailed explanation of the right side vehicle side mirror will be omitted hereafter.

Next, an overall configuration diagram of a control device for electrically controlling the automobile mirror cleaning device of the present embodiment shown in FIG.
This will be explained using the front view of the mirror switch of the automobile mirror cleaning device of this embodiment shown in FIG.

In the figure, when the retract switch 51 is kept on for a short period of time (for example, about 2 seconds or less), it drives the vibration driving means for removing substances attached to the mirror, and for a long time (for example, about 2 seconds or less).
When the on state is maintained (for example, for about 2 seconds or more), the mirror 12 is electrically moved between the storage position and the use position, and the mirror 12 is alternately moved between the storage position and the use position every time the suppression operation is performed.

The left-side one-side selection switch 52L is operated by the slide switch 52, and allows the vibration drive means, heating means, and storage drive means for removing substances attached to the mirror to be operated only on the left side. The one side selection switch 52R is operated by the slide switch 52, and allows the vibration drive means for removing substances attached to the mirror, the heating means, and the storage drive means to be operated only on the right side.

When the slide switch 52 is in the intermediate position and the left side one-sided selection switch 52L and the right side one-sided selection switch 52R are not in the on state, the vibration drive means, heating means, and storage drive means on both sides can be operated. be. The heating switch 53 energizes the heater 24 which is a heating means and is connected to the mirror 12. Further, the mirror position setting switch 54 determines the setting angle of the mirror 12.

Incidentally, since this mirror position setting switch 54 is not directly related to the gist of the present invention, a detailed explanation thereof will be omitted.

The retract switch 51, the left side selection switch 52L1, the right side selection switch 52R1, the heating switch 53, and the mirror position setting switch 54 are arranged as a switch panel 50 at a position in the vehicle interior where the driver can easily operate them. .

These retract switch 51 and slide switch 52
The left side selection switch 52L1, the right side selection switch 52R1, the heating switch 53, and the mirror position setting switch 54 are input to the microcomputer 61 through the input circuit 63, and when they are on,
"L" is input manually to the input circuit 63, and "H" is input when it is off.

The microcomputer 61 includes an in-vehicle battery 6.
Power is supplied from a power supply circuit 62 that is supplied with power from 8.

The output of the microcomputer 61 is supplied to a left mirror drive circuit 64 and a right mirror drive circuit 65.

The frequency of the AC power supplied to the ultrasonic transducer 20 is supplied from the transducer drive circuit 64c. The vibrator drive circuit 64c is supplied from a voltage controlled oscillation circuit (V-F conversion circuit) 64b, and the output frequency of the voltage controlled oscillation circuit 64b is supplied by the output voltage of the D/A converter 64a. The output voltage of 64a is controlled by a digital signal from microcomputer 61. and,
The output voltage of the D/A converter 64a is always supplied to the voltage controlled oscillation circuit 64b, and the voltage controlled oscillation circuit 64
b applies an output of a predetermined frequency to the vibrator drive circuit 64c. The output of the transducer drive circuit 64c is controlled by a strobe signal 66 output from the microcomputer 61, and only when the strobe signal 66 is on, the transducer drive circuit 64c supplies AC power of a predetermined frequency to the ultrasonic transducer 20. supply to.

The right mirror drive circuit 65 functions similarly. Incidentally, the output voltage of the D/A converter 65a is supplied to the voltage controlled oscillation circuit 65b, and the voltage controlled oscillation circuit 65b applies an output of a predetermined frequency to the vibrator drive circuit 65c. The output of the transducer drive circuit 65c is controlled by a strobe signal 67 output from the microcomputer 61, and only when the strobe signal 67 is on, the transducer drive circuit 65c supplies AC power of a predetermined frequency to the ultrasonic transducer 20.
supply to.

Further, the output of the microcomputer 61 is sent via a relay circuit 71 to a right motor 73 constituting a retracting drive means for moving the right mirror 12 between the retracted position and the use position of the vehicle body. via 72,
A left motor 74 constituting a storage driving means for moving the left mirror 12 between a storage position and a use position of the vehicle body.
It is connected to the.

The output of the microcomputer 61 is sent via a relay circuit 75 to the right heater 24H connected to the right mirror 12, and via a relay circuit 76 to the left heater 24L connected to the left mirror 12. It is connected.

A control program for controlling the automobile mirror cleaning device of this embodiment is stored in the ROM of the microcomputer 61, and is controlled as follows.

9 to 11 are flowcharts for controlling an automobile mirror cleaning device according to an embodiment of the present invention.

First, as soon as the power is turned on, initialization is performed in step S1, the position of the slide switch 52 is determined in step S2, and when only the left side selection switch 52L is in the ON state, the right side drive prohibition flag is set to "1", and the left drive prohibition flag is set to "0" in step S4. Further, when the slide switch 52 is in the ON state only for the right side selection switch 52R in step S2, the left side drive prohibition flag is set to "1" in step S5, and step S6
The right drive prohibition flag is set to "0". Then, in step S2, the positions of the slide switches 52 are determined, and the left side one-sided selection switch 52L and the right side one-sided selection switch 5 are
When 2R is in the off state, the right drive prohibition flag is set to "0" in step S7, and the left drive prohibition flag is set to "0" in step S8.

It is determined in step S9 whether the retract switch 51 is on, and if the retract switch 51 is off, step S9
In order to determine whether the heating switch 53 of No. 19 is on, the process jumps from step S9 to step S19.

When the retract switch 51 is on in step S9,
In step 810, the operation time of the retract switch 51 is determined, and when it is longer than the set time of 2 seconds in this embodiment, the state of the drive prohibition flag is determined in step 811, and when only the left drive prohibition flag is "1", In step S12, the right motor 73, which constitutes a storage drive means for moving the vehicle body between the storage position and the use position, is driven via the relay circuit 71. Further, when it is determined in step 811 that only the right side drive prohibition flag is "1", in step S14, the left side forming a storage drive means for moving the vehicle body between the storage position and the use position via the relay circuit 72. motor 74
to drive. Then, when it is determined in step 811 that the right side drive prohibition flag is "0" and the left side drive prohibition flag is "0", in step 813 the storage position and the use position of the vehicle body are communicated via relay circuit 71 and relay circuit 72. The left motor 73 and the right motor 74, which constitute a retraction drive means for moving between them, are driven.

On the other hand, in step 810, the operating time of the retract switch 51 is determined, and when the operating time of the retract switch 51 is less than 2 seconds, which is the set time in this embodiment,
The state of the drive prohibition flag is determined in step 815, and when only the left drive prohibition flag is "1", the right mirror drive circuit 65 is driven in step S16. Also, step 81
When it is determined in step 5 that only the right drive prohibition flag is "1", the left mirror drive circuit 64 is driven in step 818.

Then, in step S15, the right-side drive prohibition flag is set to "0".
When it is determined that the left side drive prohibition flag is "0", the right mirror drive circuit 65 and the left mirror drive circuit 64 are simultaneously driven in step S17.

After performing any of the processes from step 812 to step S14 or step S16 to step 818, or when it is determined that the retract switch 51 is off in step S9, the heating switch 5 in step 319 is
3 is determined to be on. When it is determined in step S19 that the heating switch 53 is in the OFF state, the routine returns to step S2.

When it is determined in step S19 that the heating switch 53 is on, the state of the drive prohibition flag is determined in step S20, and when only the left drive prohibition flag is "1", the right side is The heater 24R connected to the mirror 12 is turned on. Further, when it is determined in step S20 that only the right drive inhibition flag is "1", in step 823 the heater 24L connected to the left mirror 12 is turned on via the relay circuit 76. Then, when it is determined in step S20 that the right drive prohibition flag is "0" and the left drive prohibition flag is "0", the right mirror 12 and the left mirror are Heater 24R and heater 24L connected to 12 are turned on.

After performing any of the processes from step S21 to step 823, the routine returns to step S2.

As mentioned above, water droplets, ice, etc. attached to the surface of the mirror 12,
When frost, fog, etc. reduce the visibility of the mirror 12, the ultrasonic transducer 20 attached to the mirror 12 is connected to the D/A converter 6.
4a, 65a, voltage controlled oscillation circuits 64b, 65b, and a vibrator drive circuit 64C965c.
4. It is driven in a predetermined vibration mode of vibration driving means such as the right mirror drive circuit 65. As a result, water droplets, ice, frost, fog, etc. adhering to the surface of the mirror 12 are removed, and visibility of the mirror 12 is restored.

In addition, when removing ice, frost, fog, etc. attached to the surface of the mirror 12, turn on the heating switch 53 and
The heater 24 bonded to the back surface of the mirror 1 is heated by electricity.
It is possible to melt and remove ice, frost, fog, etc. adhering to the surface of 2.

Relays 71 and 72 and a right motor 73 move the mirror 12 between the storage position and the use position of the vehicle body.
Since it has a storage driving means consisting of a left motor 74 and a left motor 74, both sides or only one side of the unnecessary mirror can be stored in the storage position.

As described above, the automobile mirror cleaning device according to the embodiment of the present invention includes the ultrasonic vibrator 20 bonded to the back surface of the mirror 12 having a predetermined curvature, and the ultrasonic vibrator 20 in a predetermined vibration mode. Driven microcomputer 61
and D/A converters 64a, 65as, voltage controlled oscillation circuits 64b, 65b, and vibrator drive circuit 54c.
, 65c, a left mirror drive circuit 64. vibration drive means such as a right mirror drive circuit 65; storage drive means consisting of relay circuits 71 and 72 for moving the mirror 12 between a storage position and a use position of the vehicle; a right motor 73 and a left motor 74; It is provided with a single traction switch 51 that distinguishes between a vibration drive means for removing substances attached to the mirror 12 and a storage drive means for moving the mirror 12, depending on the type of operation signal.

According to this type of embodiment, therefore, the mirror 12
The vibration driving means for removing substances adhering to the mirror 12 and the retracting driving means for moving the mirror 12 can be distinguished by the operation signal type of a single switch, and the number of switches disposed in the interior of the automobile can be reduced. In particular, when the retract switch 51 is operated for a long time, the vibration drive means that removes substances attached to the mirror 12 and the storage drive means that moves the mirror 12 are used in common, so that the operation time during driving is shortened. The operation time can be increased when parking, stopping, passing a car on a narrow road, or an obstacle, allowing operations to match the user's feelings.

Embodiments of this kind can be embodiments of claim 1.

Further, in the above embodiment, the vibration driving means for removing substances attached to the mirror 12 due to the length of operation time of the retract switch 51 and the retracting driving means for moving the mirror 12 are used in common. The vibration driving means for removing substances attached to the mirror 12 and the switch for the heater 24, which is a heating means disposed on the back surface of the mirror 12, can be used in common. A sonic transducer 20 and a microcomputer 61 and D that drive the ultrasonic transducer 20 in a predetermined vibration mode.
/A:I inverter 64a, 65a1 voltage controlled oscillation circuit 6
4b, 65b, a left mirror drive circuit 64 consisting of vibrator drive circuits 64c, 65C, a right mirror drive circuit 65, etc., and a heater 2 bonded to the back surface of the mirror 12.
The heating means such as No. 4, the vibration drive means for removing substances attached to the mirror 12, and the heating means can be made into a single switch that is distinguished by the type of operation signal, and this is the embodiment of claim 2. It can be done. The single switch at this time can have its function depending on the operating time of the heating switch 53.

In this type of embodiment, the type of operation signal is determined depending on the operating time of the heating switch 53, but even if the operation is erroneous, the vibration driving means or the heating means is driven, so the mirror 12 This does not deviate from the cleaning function of

Further, the embodiment of claim 4 includes an ultrasonic transducer 20 bonded to the back surface of a mirror 12 having a predetermined curvature, a microcomputer 61 and a D/A for driving the ultrasonic transducer 20 in a predetermined vibration mode. Converters 64a, 65a, voltage controlled oscillation circuits 64b, 65b, vibrator drive circuit 64c
, 65c, a left mirror drive circuit 64. A vibration drive means such as a right mirror drive circuit 65, a heating means such as a heater 24 bonded to the back surface of the mirror 12, and a relay circuit 71 for moving the mirror 12 between a storage position and a use position of the vehicle body. 72 and right motor 73 and left motor 7
4, a vibration driving means for removing substances attached to the mirror 12, and a one-sided selection switch consisting of a slide switch 52 that allows the heating means and storage driving means to be operated only on the left and right sides. It is something to do.

Therefore, with the one-sided selection switch, the left and right mirrors 1
Since only the mirror 2 can be operated, there is no need to drive the unnecessary one side, and the mirror 12 can be used in an energy saving mode, and the life of the mirror 12 and its control system can be extended. Furthermore, on narrow roads, when you cross paths with a car or an obstacle, you can set one side to the retracted position and check the mirror on the other side for clearance.

By the way, the operation signal type of the single switch in the above embodiment is determined by the duration of operation time as claimed in claim 3, but when implementing the present invention, it may be determined by the number of operations. You can also do it.

Further, the driving means for driving the ultrasonic transducer 20 of the above embodiment in a predetermined vibration mode includes a microcomputer 61, a power supply circuit 62, D/A converters 64a, 65a,
Voltage controlled oscillation circuit 64b.

65b1 consists of transducer drive circuits 64c, 65c, etc., but when carrying out the present invention, the ultrasonic transducer 2
0 may be any circuit configuration that generates a predetermined vibration, and the minimum circuit unit may be an oscillation circuit with a frequency that vibrates the ultrasonic transducer 20.

[Effects of the Invention] As described above, the automobile mirror cleaning device according to claim 1 includes a vibration driving means for driving an ultrasonic vibrator bonded to the back surface of a mirror having a predetermined curvature in a predetermined vibration mode; Since the storage drive means for moving the mirror between the storage position and the use position of the vehicle body can be distinguished by the operation signal type of a single switch, the number of switches can be reduced and the functions can be approximated. Because of this, it is easy to use.

Further, in claim 2, a vibration driving means for driving an ultrasonic vibrator bonded to the back surface of a mirror having a predetermined curvature in a predetermined vibration mode, and a heating means bonded to the back surface of the mirror are integrated into a single unit. Since the switches can be distinguished by the type of operation signal, the number of switches can be reduced, and even if there is an error in the operation, the functions are similar.
There is no inconvenience caused by the incorrect operation, and it is easy to use.

According to the third aspect of the present invention, the type of operation signal for a single switch is determined by the duration of the operation time, so that the operability is good and even a beginner will not make a mistake in operation.

Furthermore, in claim 4, a vibration driving means for driving an ultrasonic transducer bonded to the back surface of a mirror having a predetermined curvature in a predetermined vibration mode, a heating means bonded to the back surface of the mirror, and a heating device bonded to the back surface of the mirror; Since the retracting drive means that moves the vehicle body between the retracted position and the use position can be operated only on the left and right sides using a single-side selection switch, there is no need to drive unnecessary mirrors on one side, resulting in energy savings. mode, and can extend the life of the entire device. Furthermore, on narrow roads, when you are passing a car or an obstacle, you can check the margin in the mirror on the opposite side.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of a control device for electrically controlling an automobile mirror cleaning device according to an embodiment of the present invention, and FIG. 2 is a mirror state of the automobile mirror cleaning device according to an embodiment of the present invention. FIG. 3 is a plan view of FIG. 2, FIG. 4 is an explanatory diagram of bending waves in an automobile mirror cleaning device according to an embodiment of the present invention, and FIG. The figure is a sectional view of the overall configuration of a mirror body of an automobile mirror cleaning device according to an embodiment of the present invention.
The figure is a perspective view of a mirror body of an automobile mirror cleaning device according to an embodiment of the present invention, viewed from the front left side of the vehicle;
7 is a plan view of the mirror body shown in FIG. 6 viewed from above the vehicle, FIG. 8 is a front view of a mirror switch of an automobile mirror cleaning device according to an embodiment of the present invention, and FIG. 9 11 to 11 are flowcharts for controlling an automobile mirror cleaning device according to an embodiment of the present invention, and FIG. 12 is a sectional view of a conventional automobile mirror cleaning device disposed outside a vehicle. In the figure, 12: Mirror 20: Ultrasonic transducer 24: Heater 51: Retract switch 52 Ni-Ride switch 52L: Left side one-sided selection switch 52R: Right side one-sided selection switch 53: Heating switch 61: Microcomputer, 64a, 65a: D/A:y inverter, 64b, 65b
: voltage controlled oscillation circuit, 64c, 65c : vibrator drive circuit. In the drawings, the same reference numerals and the same symbols indicate the same or equivalent parts. Patent applicant Aisin Seiki Co., Ltd.

Claims (4)

[Claims] (1) an ultrasonic vibrator bonded to the back surface of a mirror having a predetermined curvature; a vibration driving means for driving the ultrasonic vibrator in a predetermined vibration mode; A storage drive means for moving the mirror between them; and a single switch for distinguishing between the vibration drive means for removing substances attached to the mirror and the storage drive means for moving the mirror, depending on the type of operation signal. A cleaning device for car mirrors. (2) an ultrasonic vibrator bonded to the back surface of a mirror having a predetermined curvature; a vibration drive means for driving the ultrasonic vibrator in a predetermined vibration mode; a heating device bonded to the back surface of the mirror; 1. A cleaning device for an automobile mirror, comprising: a single switch that distinguishes between a vibration driving means for removing substances attached to the mirror and the heating means according to the type of operation signal. (3) The automobile mirror cleaning device according to claim 1 or 2, wherein the operation signal type of the single switch is determined by the duration of operation time. (4) an ultrasonic vibrator bonded to the back surface of a mirror having a predetermined curvature; a vibration drive means for driving the ultrasonic vibrator in a predetermined vibration mode; a heating device bonded to the back surface of the mirror; A storage drive means for moving the mirror between a storage position and a use position of the vehicle body, a vibration drive means for removing substances attached to the mirror, the heating means, and the storage drive means can be operated only on the left and right sides. A cleaning device for an automobile mirror, comprising: a one-sided selection switch;