JPH09309384A - Under mirror device for automobile - Google Patents

Abstract

(57) An object of the present invention is to provide a compact under mirror device for an automobile, in which a mirror moving body operates reliably. A motor (1) fixed to a rear portion of a vehicle.
1) and a drive gear (15) driven by the prime mover
A driven roller (16) arranged to face the drive gear, and a curved arm portion (1) supported by being sandwiched between the drive gear and the driven roller.
7) and an under mirror section (1) connected to the arm section.
8) An under-mirror device (1) for a vehicle, comprising a mirror moving body (25) having the same installed therein, wherein the arm portion is provided with a rack gear (17aa) meshing with the drive gear. For under mirror device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to an under mirror device for an automobile mounted on a vehicle.

[0002]

2. Description of the Related Art An under-mirror device for a vehicle is installed, for example, in the rear part of the roof of a one-box car or the like, and plays an important role in facilitating visual recognition of the lower part of the rear part of the vehicle and ensuring safety when the vehicle is moving backward. Become On the other hand, the one-box car creates a turbulent air flow along the rear window behind the vehicle while it is running, so it is equipped with a deflector to suppress the occurrence of turbulent flow and reduce the air resistance of the vehicle. . Therefore, this under mirror device for automobiles is stored in the deflector, the under mirror is stored in the storage part inside the deflector (spoiler) while driving forward, and the under mirror is pulled out only when reversing, so that the driver can see the lower rear part. It is made possible. This attempt is widely used because it does not increase the air resistance during running by the under mirror device for automobiles and is excellent in appearance.

As one of the conventional examples of this kind of under mirror device, the one disclosed in Japanese Patent Laid-Open No. 1-127430 may be exemplified. This one uses an electric motor, a belt pulley, a link, and a timing belt to move the under mirror to a predetermined position inside and outside the deflector.

Separately from this, an under mirror device for an automobile disclosed in Japanese Patent Laid-Open No. 6-92185 discloses a guide rail in a deflector, a first movement of which is guided along the guide rail and which supports the under mirror. , A second link coupled to the electric motor and transmitting power to the first link. The former uses a timing belt, and the latter uses a pair of links, but the former leaves a problem in the uncertainty of power transmission due to belt slip and slack, and the latter uses a device. However, there is a practical problem in that it is slightly larger.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art.

[0006]

In order to solve the above problems, the present invention provides a prime mover fixed to a rear portion of a vehicle, a driving body driven by the prime mover, and a driving body facing the driving body. Vehicle including a driven roller arranged, a curved arm portion supported by being sandwiched by the driving body and the driven roller, and a mirror moving body provided with an under mirror portion connected to the arm portion In the under-mirror device for automobiles, the arm part is provided with a meshing part that meshes with the driving body.

According to the under mirror apparatus for an automobile by the means described in the above claims, the driving unit is driven by driving the prime mover, and the arm unit having the meshing portion meshing with the driving unit is provided with respect to the vehicle. By being moved, the mirror moving body projects from the vehicle.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the configuration of a preferred embodiment of the present invention.

FIG. 1 is an overall view of an under mirror apparatus 1 for an automobile according to the present invention. In FIG. 1, an under mirror device 1 for an automobile is attached to an air spoiler (deflector) 2 installed at a rear portion of the vehicle,
In the protruding state, the driver can obtain a view behind the vehicle through the rear window 3.

An under mirror device 1 for an automobile comprises an electric motor 11 attached to the air spoiler 2,
An output shaft 12 projects from the electric motor 11. A worm gear 13 that constitutes a speed reducer is integrally rotatably attached to the output shaft 12, and the worm gear 13 also functions as a wheel gear that constitutes a speed reducer. 14 is meshed.

Drive gear 15 formed of a pinion gear
Is arranged coaxially with the wheel gear 14 and rotates integrally with the wheel gear 14. The driven roller 16 is arranged to face the drive gear 15, and an arm portion 17 is sandwiched between the drive gear 15 and the driven roller 16. As shown in FIG. 1, the arm portion 17 includes a curved portion 17 a having a three-dimensionally twisted shape and a curved portion 1 a.
And a mirror member 18a at one end of the straight line portion 17b.
And a mirror structure 18 forming a mirror moving body 25 together with the arm portion 17.

The curved portion 17a of the arm portion 17 is provided with a rack gear 17aa which meshes with the drive gear 15.

As shown in FIG. 1, a driven gear 19a and a driven roller 19b may be appropriately provided at several positions so as to sandwich the arm portion 17 therebetween. The driven gear 19a
Engages with the rack gear 17aa of the arm portion 17.

The above-mentioned rack gear 17aa may be integrally molded with a resin material at the same time when the arm portion 17 is manufactured. Alternatively, only the rack gear 17aa may be formed separately and adhered to the arm portion 17.

The operation of the above-mentioned under mirror device 1 for an automobile will be described. When the projection signal of the mirror structure 18 is issued by the controller of the vehicle (not shown) in the storage position of the mirror structure 18 (represented by the solid line in FIG. 1) indicated by A in FIG. Thus, a current from a vehicle power supply (not shown) is supplied to the electric motor 11.

The electric motor 11 is actuated by the supply of current from the power source, and the output shaft 12 and the worm gear 1 are operated.
The drive gear 15 is driven through the wheel gear 14 and the wheel gear 14. By driving the drive gear 15, the drive gear 1
By the action of the rack gear 17aa meshing with 5,
The arm portion 17 is sent to the right in FIG. 1, and the mirror structure 18 connected to the arm portion 17 is leftward from the position A in FIG. 1 due to the twisted shape of the arm portion 17, and It is made to project downward and becomes the state shown by B in FIG. 1 (represented by the chain double-dashed line in FIG. 1). This ensures a view behind the vehicle for the driver located in the driver's seat of the vehicle.

The position of the mirror structure 18 which is projected by the electric motor 11 is detected by a position sensor (not shown), and when it is determined that the mirror structure 18 has reached the projecting position, the controller stops the movement. When a signal is issued and the electric power supply from the power supply to the electric motor 11 is stopped, the mirror structure 1
The movement of 8 ends. However, it is not always necessary to use the position sensor, and the mirror structure 18 is provided with a stopper member which comes into contact with the vehicle, and the movement of the mirror structure 18 is stopped by detecting the load current flowing in the electric motor 11. May be.

In the projecting state B of the mirror structure 18 in FIG. 1, when the controller of the vehicle (not shown) issues a storage signal for the mirror structure 18, the signal causes the above-mentioned projecting operation from the vehicle power source (not shown). An electric current in the opposite direction is supplied to the electric motor 11.

The electric motor 11 is operated by the supply of current from the power source, and the output shaft 12 and the worm gear 1 are operated.
The drive gear 15 is driven through the wheel gear 14 and the wheel gear 14 in the direction opposite to that during the projecting operation. The rack gear 1 meshed with the drive gear 15 by driving the drive gear 15.
By the action of 7aa, the arm portion 17 is sent out to the left in FIG. 1, and the mirror structure 18 is returned to the retracted position A in FIG.

FIG. 2 shows a second embodiment of the present invention.
1 is a detailed view of a main part of an under mirror device 1 for an automobile. This embodiment is different from the first embodiment described above in that
The drive gear 15 for transmitting the driving force of the electric motor 11 to the arm portion 17 and the driven roller 16 are arranged so as to face each other in a substantially vertical direction, and the rack gear 17aa is installed on the lower surface of the arm portion 17.

In FIG. 2, the rack gear 17aa is installed on the lower surface of the arm portion 17, the drive gear 15 is arranged below the arm portion 17, and the driven roller 16 is further installed on the upper surface of the arm portion 17. , Rack gear 17aa
May be installed on the upper surface of the arm part 17, the drive gear 15 may be installed above the arm part 17, and the driven roller 16 may be installed on the lower surface of the arm part 17.

In the above-described embodiment, only the gear in which the rack gear and the pinion gear mesh with each other has been described, but the present invention is not particularly limited to this and any structure in which the driving body and the arm portion mesh with each other is possible. Well, it may be knurled or one that meshes with serrations.

According to the present invention, since the arm portion of the mirror moving body is provided with the meshing portion that meshes with the driving body, even if water, dust, sand, wax or the like adheres to the arm portion from the outside of the vehicle. The arm portion can be reliably operated by the engagement of the engagement portion and the driving body.

[0024]

As described above, according to the present invention, the mirror moving body always makes a constant movement along the locus determined by the shape of the arm, and the apparatus can be constructed without using a belt, a link or the like. Therefore, the entire device can be downsized.

[Brief description of drawings]

FIG. 1 is an overall view of a first embodiment of an under mirror device for an automobile of the present invention.

FIG. 2 is a detailed view of essential parts of a second embodiment of an under mirror device for an automobile of the present invention.

[Explanation of symbols]

1 Under Mirror Device for Automobile 11 Electric Motor 15 Drive Gear 16 Driven Roller 17 Arm Part 17aa Rack Gear 18 Mirror Structure 25
Mirror moving body

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiromi Kondo 2-3-3 Showa-cho, Kariya-shi, Aichi Prefecture Inside Ishin Engineering Co., Ltd.

Claims (2)

[Claims] 1. A prime mover fixed to a rear portion of a vehicle,
A driving body driven by the prime mover, a driven roller arranged to face the driving body, a curved arm portion supported by being sandwiched by the driving body and the driven roller, and the arm portion. An under mirror device for an automobile, comprising: a mirror moving body having a connected under mirror portion, wherein the arm portion is provided with a meshing portion that meshes with the driving body. 2. An under-mirror device for an automobile, wherein the driving body is a pinion gear, and an engaging portion of the arm portion is a rack gear.