JPH057560U - Vehicle door mirrors - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the mirror holder from resonating and generating abnormal noise due to vibration energy from the ultrasonically vibrating mirror body. [Structure] An ultrasonic transducer 13 is fixed to a vibration transmission plate 12 fixed to the mirror body 1. Mirror body 11
Is incorporated in the mirror holder 14 in a loosely fitted state. The plurality of supporting portions 17 formed on the mirror holder 14 support the mirror body 11 in a point contact state. When the ultrasonic vibrator vibrates, the vibration is transmitted to the mirror body 11, so that the water droplets adhering to the surface of the mirror body 11 are atomized and removed. At this time, the vibration energy transmitted from the mirror body 1 to the mirror holder 14 is small.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention makes it possible to supersonicate water droplets adhering to the surface of the mirror body supported by the mirror holder. The present invention relates to a vehicle door mirror having a function of removing water droplets atomized by wave vibration.

[0002]

[Prior art]

  In recent years, as a vehicle door mirror, ultrasonic waves are applied to water droplets attached to the surface of the mirror body. It is provided with a function to remove it by movement. In other words, for the mirror body An ultrasonic vibrator is provided so that ultrasonic vibration can be applied, and the ultrasonic vibrator is driven. By doing so, the main body of the mirror is ultrasonically vibrated to atomize water droplets adhering to the surface. To do.

[0003]   FIG. 7 shows an example of a door mirror having a water drop removing function. In this figure At the rear side of the mirror body 1, a vibration transmission member 2 is fixed, and the vibration transmission member 2 The ultrasonic transducer 3 is attached to the vibration transmitting member 2 and the ultrasonic transducer 3 vibrates. It is adapted to be transmitted to the mirror main body 1 via. And such a mirror book The body 1 is sandwiched by the claw line portion 5 and the convex portion 6 formed on the mirror holder 4, As a result, the mirror body 1 is incorporated into the mirror holder 4 in a loosely fitted state. This place In this case, since the mirror body 1 is supported by the mirror holder 4 in a loosely fitted state, The vibration energy of the pendulum 3 is transmitted to the mirror body 1 without being attenuated.

[0004]

[Problems to be solved by the device]

  However, in the case of the above conventional configuration, the outer peripheral shape of the mirror body 1 is 4 is formed so as to substantially match the inner peripheral shape of the mirror 4, the mirror body 1 is Are supported in surface contact with each other. Therefore, when the mirror body 1 vibrates ultrasonically , The vibration energy transmitted from the mirror body 1 to the mirror holder 4 is relatively large. Therefore, there is a drawback that the mirror holder 4 resonates and produces chatter noise.

[0005]   The present invention has been made in view of the above circumstances, and its purpose is to provide water by ultrasonic vibration. Effectively prevent the generation of noise from the mirror holder while adding the drop removal function. The present invention provides a vehicle door mirror that can be used.

[0006]

[Means for Solving the Problems]

  The vehicle door mirror of the present invention uses a mirror body supported by a mirror holder as an ultrasonic wave. In a vehicle door mirror with a water droplet removal function equipped with an ultrasonic vibrator to vibrate, A plurality of support parts for supporting the mirror body in a point contact state are provided on the mirror holder side. It is a digit.

[0007]   In addition, a plurality of mirrors supported by the mirror holder in a point contact state on the mirror body side. You may make it provide a supported part.

[0008]

[Action]

  In the case of claim 1, the mirror body includes a plurality of support portions provided on the mirror holder side. Since it is supported by the mirror holder in a point contact state, the mirror body When moving, the vibration energy transmitted from the mirror body to the mirror holder is extremely small. Therefore, the mirror holder does not resonate, so It is possible to prevent the resonance sound from being generated from the mirror holder due to the vibration.

[0009]   In the case of claim 2, the mirror body includes a plurality of supported portions provided on the mirror body side. Supported by the mirror holder in a point contact state, When moving, the vibration energy transmitted from the mirror body to the mirror holder is extremely small. Therefore, the mirror holder does not resonate, so It is possible to prevent the resonance sound from being generated from the mirror holder due to the vibration.

[0010]

【Example】

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. Overall vertical section 1, the vibration transmitting member 12 is fixed to the back side of the mirror body 11. At the same time, an ultrasonic transducer 13 is attached to the vibration transmitting member 12. this The ultrasonic transducer 13 is driven according to the switch operation provided inside the vehicle. In that driving state, the vibration from the ultrasonic transducer 13 is transmitted via the vibration transmission member 12. The movement is transmitted to the mirror body 11.

[0011]   In addition, the mirror holder 14 is provided with a claw portion 15 and a convex portion 16, and -The main body 11 is clamped by the claws 15 and the protrusions 16 so that the main body 11 is attached to the mirror holder 14. It is incorporated.

[0012]   In FIG. 2 showing the front surface of the mirror holder 14, the convex portion 16 of the mirror holder 14 is A plurality of parts are formed at a predetermined position, and a support part 17 is provided between the convex part 16 and the claw part 15. Are formed. Here, the supporting portion 17 has a triangular cross section as shown in FIG. The mirror body 11 is formed on the support portion 1 of the mirror holder 14. It is supported by 7 in a point contact state.

[0013]   According to the above configuration, when the ultrasonic vibrator 13 vibrates, the vibration is transmitted. It is transmitted to the mirror body 11 through the reaching member 12. As a result, the mirror body 11 Vibrates ultrasonically, so water droplets adhering to the surface of the mirror body 11 are atomized and removed. You can

[0014]   Now, when the mirror body 11 vibrates ultrasonically as described above, the mirror body 11 Since it is supported by the supporting portion 17 of the mirror holder 14 in a point contact state, the mirror body The vibration energy transmitted from 11 to the mirror holder 14 is extremely small. Therefore, Since the vibration energy that causes the mirror holder 14 to resonate is small, It does not resonate and generate abnormal noise.

[0015]   Here, FIG. 4 shows the FET analysis result of the sound from the conventional door mirror. It can be seen from FIG. 4 that the sound pressure in the audible frequency range is extremely high. On the contrary FIG. 5 shows the results of the FET analysis of the sound of the door mirror of this embodiment. From this, it was found that the sound pressure in the audible range frequency was low.

[0016]   In short, according to the above-mentioned embodiment, the plurality of supporting portions 17 are provided on the mirror holder 14. Is provided, and the support portion 17 causes the mirror body 11 to come into point contact with the mirror holder 14. Since the mirror body 11 is vibrated by the ultrasonic transducer 13, Energy transmitted from the mirror body 11 to the mirror holder 14 in the state Can be suppressed to prevent the mirror holder 14 from resonating. Servant The conventional structure in which the mirror body is supported in surface contact with the mirror holder Unlike, the mirror holder 14 does not emit any noise.

[0017]   FIG. 6 shows a second embodiment of the present invention. That is, the substantially rectangular mirror body 18 A swelled supported portion 19 is formed at a predetermined portion of. This makes the mirror book When the body 18 is incorporated in the mirror holder 14, the mirror main body 18 The plurality of supported portions 19 are supported by the mirror holder 14 in a point contact state. It

[0018]   In the case of the second embodiment, the mirror body 18 is supported on the mirror holder 14 in a point contact state. Since it is held, when the mirror body 14 is ultrasonically vibrated, the mirror holder 14 Since the resonance energy transmitted to the mirror holder is suppressed, as in the first embodiment, It is possible to prevent 14 from resonating and generating abnormal noise.

[0019]   A rib is formed on the inner peripheral surface of the mirror holder 14, and the rib forms the mirror main body 1. 1 may be supported in a point contact state.

[0020]

[Effect of device]

  As is clear from the above description, according to the vehicle door mirror of the present invention, the ultrasonic wave The vibrating mirror body is used as a mirror holder through a plurality of supporting parts or supported parts. Since it is supported in a point contact state, a function to remove water droplets by ultrasonic vibration is added. However, it has an excellent effect that it can prevent the generation of abnormal noise from the mirror holder. Play the fruit.

[Brief description of drawings]

FIG. 1 is an overall vertical sectional side view showing a first embodiment of the present invention.

FIG. 2 is a front view of a mirror holder.

FIG. 3 is an enlarged perspective view of a support portion.

FIG. 4 is a noise FET analysis diagram showing a state where the mirror body is supported by the mirror holder in a surface contact state.

FIG. 5 is a view corresponding to FIG. 4 showing a state where a mirror body is supported by a mirror holder in a point contact state.

FIG. 6 is a front view showing the entire second embodiment of the present invention.

FIG. 7 is a view corresponding to FIG. 1 showing a conventional example.

[Explanation of symbols]

Reference numeral 11 is a mirror body, 13 is an ultrasonic transducer, 14 is a mirror holder, 17 is a support portion, 18 is a mirror body, and 19 is a supported portion.

Claims (2)

[Scope of utility model registration request] 1. A vehicle door mirror with a water drop removing function, comprising: an ultrasonic vibrator for ultrasonically vibrating a mirror body supported by a mirror holder, wherein a plurality of mirror bodies are supported on the mirror holder side in a point contact state. A vehicle door mirror, characterized in that it is provided with a support portion. 2. In a vehicle door mirror with a water drop removing function, which is equipped with an ultrasonic vibrator for ultrasonically vibrating a mirror body supported by a mirror holder, the mirror body is supported by the mirror holder in a point contact state. A vehicle door mirror having a plurality of supported parts.