JPH09309385A - Under mirror device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact under mirror device for an automobile, which can positively actuate a mirror moving body. SOLUTION: This device 1 is so constituted that it is equipped with a prime mover 11 fixed at the rear site of a vehicle, a driving roller 15 driven by the prime mover 11, and a driven roller 16 disposed while being faced to the driving roller 15, a curved arm part 17 which is pinchedly held by the driving roller 15 and the driven roller 16 so as to be thereby supported, and with a mirror moving body 25 in which an under mirror part 18 connected with the arm part 17, is set. In this case, recessed parts 15a and 17e are provided for one side of either one of the driving roller 15 and the arm part 17, the other side of either one of the driving roller 15 and the arm part 17 is engaged with the aforesaid recessed parts, concurrently recessed parts 16d and 17e are also provided for one side of either one of the driven roller 16 and the arm part 17, and the other side of either one of the driven roller 16 and the arm part 17 is engaged with the aforesaid recessed parts.

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, at the rear part of the roof of a one-box car or the like and plays an important role in facilitating the visual recognition of the lower part of the rear part of the vehicle and ensuring the safety of the vehicle in reverse. 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 drive roller driven by the prime mover, and a drive roller facing the drive roller. Vehicle including a driven roller arranged, a curved arm portion supported by being sandwiched by the driving roller and the driven roller, and a mirror moving body provided with an under mirror portion connected to the arm portion Under mirror device for a vehicle, a recess is provided on one side of the drive roller and the arm portion, and the drive roller and the other side of the arm portion are engaged with the recess, and the driven roller and the arm are also provided. An under miller for an automobile, characterized in that a recess is formed on one side of the arm, and the driven roller and the other side of the arm are engaged with the recess. It was with the device.

According to the under mirror device for an automobile by the means described in the above claims, the driving roller is driven by driving the prime mover, and the arm portion sandwiched between the driving roller and the driven roller is mounted on the vehicle. By moving the mirror moving body, 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.

The drive roller 15 is the wheel gear 14 described above.
Is coaxially arranged and rotates integrally with the wheel gear 14. The driven roller 16 is arranged so as to face the drive roller 15, and an arm portion 17 is sandwiched between the drive roller 15 and the driven roller 16. As shown in FIG. 1, the arm portion 17 is composed of a curved portion 17a having a three-dimensionally twisted shape and a straight portion 17b extending from the curved portion 17a.
A mirror member 18a is provided at one end of 7b, and is connected to a mirror structure 18 forming a mirror moving body 25 together with the arm portion 17.

As shown in FIG. 1, the driven rollers 19a and 19b are appropriately further provided so as to sandwich the arm portion 17 therebetween.
May be provided.

FIG. 2 shows a first embodiment of the present invention.
A cross section including a driving roller 15 and a driven roller 16 is shown. In the figure, the drive roller 15 is composed of a drive shaft 15a formed of a hard material that is connected to the wheel gear 14 and a roller member 15b formed of a rubber or resin material mounted around the drive shaft 15a. There is.

Guide portions 15c 'and 15c "are installed at the upper end portion and the lower end portion of the roller member 15b, and as a result, a recess 15d is formed between the guide portions 15c' and 15c".

On the other hand, the driven roller 16 is also made of a hard material and is made of a driven shaft 16a rotatably fixed to the air spoiler 2 and a rubber or resin material mounted around the driven shaft 16a. Roller member 1
6b.

Guide portions 16c 'and 16c "are installed at the upper and lower ends of the roller member 16b, respectively, and as a result, a recess 16d is formed between the guide portions 16c' and 16c".

The arm portion 17 is, as shown in FIG.
Inclined portions 17a, 17b, 17c, and 17d are installed at four corners of the cross section, and by engaging with the concave portions 15d and 16d of the drive roller 15 and the driven roller 16, the arm portion 17 is held without rattling. To be done.

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 operated by the supply of current from the power source, and the output shaft 12 and the worm gear 1 are operated.
The drive roller 15 is driven via the motor wheel 3 and the wheel gear 14. By driving the drive roller 15, the arm portion 17 is sent out to the right in FIG.
Due to the twisted shape of 7, the mirror structure 18 connected to the arm portion 17 is projected leftward and downward from the position A in FIG. 1 and is indicated by B in FIG. 1 (see FIG. 1). Represented by the chain double-dashed line). 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 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 a storage signal for the mirror structure 18 is issued by the controller of the vehicle (not shown), the signal causes the above-mentioned projecting operation from the vehicle power supply (not shown). An electric current in the opposite direction is supplied to the electric motor 11.

The electric motor 11 is actuated by the supply of electric current from the power source, and the output shaft 12 and the worm gear 1 are operated.
The drive roller 15 is driven through the wheel gear 14 and the wheel gear 14 in the direction opposite to that during the projecting operation. The drive roller 1
The arm 17 is sent out to the left in FIG. 1 by driving 5 and the mirror structure 18 is returned to the retracted position A in FIG.

FIG. 3 shows a second embodiment of the present invention.
A cross section including a driving roller 15 and a driven roller 16 is shown. Only the points of the present embodiment different from the first embodiment will be described. In FIG. 3, the drive roller 15 is formed of a drive shaft 15a formed of a hard material that is integrally rotatably connected to the wheel gear 14, and a rubber or resin material attached to the outer periphery of the drive shaft 15a. And a roller member 15b.

On the other hand, the driven roller 16 comprises a driven shaft 16a made of a hard material, and a roller member 16b made of rubber or a resin material attached to the outer periphery of the driven shaft 16a. The driven shaft 16a is supported by the air spoiler 2 by a first holder 22a and a second holder 22b which are respectively held by a first bolt shaft 21a and a second bolt shaft 21b. The first holder 22a and the second holder 22b are
First spring member 23a and second spring member 2 respectively
It is urged toward the drive roller by 3b.

The arm portion 17 of the mirror moving body 25 is formed with a semicircular recess 17e on each side surface thereof.
The arm 17 is held without rattling by engaging 5b and 16b with the recess 17e. Particularly according to the present embodiment, the spring members 23a, 2
Since the driven roller 16 is pressed toward the drive roller 15 by 3b, the rattling of the arm portion 17 can be further suppressed.

According to the present invention, the arm portion of the mirror moving body is sandwiched by the driving roller and the driven roller, and a concave portion is provided on one side of the driving roller and the driven roller and the arm portion. Since the driving roller and the driven roller are engaged with the arm portion, the arm portion does not rattle in the horizontal direction and the vertical direction.

[0027]

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 an under mirror device for an automobile of the present invention.

FIG. 2 is a detailed view of essential parts of the under mirror apparatus for a vehicle according to the first embodiment of the present invention.

FIG. 3 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 Roller 16 Driven Roller 17
Arms 15d, 16d, 17e Recesses 18a Mirror member 25 Mirror moving body

Front Page Continuation (72) Inventor Hiroshi Kondo Atsumi Engineering Co., Ltd. 2-3, Showa-cho, Kariya city, Aichi prefecture

Claims (2)

[Claims] 1. A prime mover fixed to a rear portion of a vehicle,
A drive roller driven by the prime mover, a driven roller arranged to face the drive roller, a curved arm portion supported by being sandwiched by the drive roller and the driven roller, and the arm portion. An under mirror device for an automobile, comprising: a mirror moving body in which a connected under mirror section is installed, wherein a recess is provided on one side of the drive roller and the arm section, and the drive roller and the arm section are provided in the recess. While engaging the other side of the driven roller and the arm portion on one side of the arm portion, the recess is engaged with the other side of the driven roller and the arm portion. A characteristic under mirror device for automobiles. 2. The under mirror device for an automobile according to claim 1, wherein the driving roller and the driven roller are arranged to face each other in a substantially horizontal direction.