JPS60148740A - Back mirror for vehicle - Google Patents

Abstract

PURPOSE:To reduce the cost of a back mirror for a vehicle, by a method wherein, through remote control of a driving unit mounted in a mirror housing, the mirror housing is moved on a basis of a base to adjust the inclination of a mirror. CONSTITUTION:In a door mirror, a sliding support surface 3 in a concave circle in horizontal cross section is formed in the outer surface of a base 22 secured to the outer surface of a door, and a support arm 4 is protruded outwardly from about the intermediate part of the surface 3. Meanwhile, a sliding surface 7 in a convex circle in horizontal cross section, matching said surface 3, is formed on the base part of a mirror housing 6, a mounting arm 8 is integrally formed in the housing 6, and the arm is rotatably coupled to a support arm 4, inserted through a notch part 10 in the base part of the housing 6, by means of a support shaft 11. A crank gear 20, rotated by a motor 21, of a driving unit 17 mounted in the housing 6 is geared with a spur gear 16 secured to the support shaft 11, and the mirror housing 6 is rotated through rotation of the spur gear 16.

Description

[Detailed description of the invention] Industrial applications The present invention is directed to a novel rearview mirror for a vehicle.

Specifically, it is a rearview mirror for a vehicle in which a mirror housing is tiltably supported relative to a base, and the mirror housing is rotated relative to the base by remotely controlling a housing drive unit provided in the mirror housing. The present invention aims to provide a new vehicle barrack mirror whose inclination can be adjusted.

BACKGROUND TECHNOLOGY AND PROBLEMS It is desirable to be able to adjust the direction of the mirror by remote control in a rearview mirror installed on the outside of a vehicle, for example, a car.Therefore, □ Conventionally, a mirror drive unit is placed inside the mirror housing. However, there is a device in which the mirror can be tilted horizontally and vertically using this mirror drive mechanism.

However, when it comes to automobile rearview mirrors, especially door mirrors, there are only a few cases in which the mirror must be tilted vertically by remote control, and more often it is necessary to change its direction left and right.

Therefore, rearview mirrors for vehicles, especially door mirrors for automobiles, have a complicated structure, and therefore the mirror must be tilted in all directions, horizontally and vertically, by remote control using an expensive mirror drive unit. There is little need to set it to 7.

OBJECT OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is a rearview mirror for a vehicle in which a mirror housing is tiltably supported with respect to a base, and a housing drive unit provided in the mirror housing. By remotely controlling the mirror housing, the mirror housing can be rotated with respect to the base to adjust the tilt of the mirror □-, thereby making it possible to obtain a rearview mirror for a vehicle that can change the mirror angle by remote control at a low cost. The purpose is to do so.

Furthermore, it is an object of the present invention to provide a vehicle rearview mirror as described above that also has a shock-reducing function.

SUMMARY OF THE INVENTION Therefore, in order to achieve the above-mentioned object, the first vehicle rearview mirror of the present invention includes a mirror housing that is tiltably supported on a base fixed to the vehicle body side, and a mirror mounted on the mirror housing. The rearview mirror for a vehicle is supported by a housing drive unit including a motor in a mirror housing, a rotation output shaft of the housing drive unit is linked with a mirror housing support shaft, and the motor of the housing drive unit is controlled by remote control. It is characterized in that the mirror housing is rotated relative to the base by rotation.

According to the first aspect of the present invention, a vehicle rearview mirror whose mirror angle can be adjusted by remote control can be obtained at low cost.

A second vehicle rearview mirror of the present invention is a vehicle rearview mirror in which a mirror housing is tiltably supported on a base fixed to the vehicle body side, and a mirror is supported on the mirror housing. A housing drive unit including a motor therein is supported, and the rotation output shaft of the housing drive unit is freely connected to the mirror housing support shaft, and when the motor of the housing drive unit is not driven, the rotation output shaft and the mirror housing support shaft are connected to each other. is in a disengaged state, and when the motor is rotationally driven, the rotation output shaft and the mirror housing support shaft are in a linked state, so that the mirror housing is rotated relative to the base.

Therefore, according to the second aspect of the present invention, when a strong external force is applied to the mirror housing, the mirror housing rotates independently of the housing drive unit to alleviate the impact caused by the external force. I can do it.

EXAMPLES Below, details of the vehicle rearview mirror of the present invention will be explained according to the illustrated embodiment.The illustrated embodiment is an application of the present invention as a door mirror for an automobile.

First Embodiment FIGS. 1 to 3 show a first embodiment of the vehicle rearview mirror of the present invention.

In the figure, 1 is a door mirror attached to the outer surface of an automobile door.

A base 2 is fixed to the outer surface of the door by screws or other appropriate means, and is made of relatively strong synthetic resin or die-casting.

A sliding receiving surface 3 is formed on the outer surface of the base 2. The sliding receiving surface 3 extends along the front-rear direction and has a concave spherical shape in horizontal section. Reference numeral 4 denotes a support arm, which is provided to protrude outward from approximately the center of the sliding receiving surface 3. A circular insertion hole 5 is formed at the tip of the support arm 4, and the sliding receiving surface 3 is a concave spherical surface along the circumference of a circle centered on the center of the insertion hole 5. There is.

A mirror housing 6 is made of synthetic resin. The mirror housing 6 is a substantially casing with an open rear surface (in this specification, front and rear refers to the side in the traveling direction of the automobile on which the door mirror l is mounted, and the opposite side is the rear). It is said that The outer surface of the base end of the mirror housing 6 (with respect to the mirror housing 6, the portion on the base 2 side is referred to as the base end, and the opposite side is referred to as the tip) is a sliding surface 7 having a substantially convex spherical shape. There is. The curvature of this sliding surface 7 is formed to be approximately the same as the curvature of the sliding receiving surface 3 of the base 2. Reference numeral 8 denotes a mounting arm that projects integrally with the mirror housing 6, and has a circular insertion hole 9 formed at its tip. The sliding surface 7 is shaped so as to follow an arc drawn around the center of the insertion hole 9. Further, a notch hole 10 extending in the front-rear direction is formed in the wall on the proximal end side of the mirror housing 6, and the support arm 4 of the base 2 is inserted into the mirror housing 6 through the notch hole lo. .

11 is a support shaft, and the support shaft 11 rotatably connects the tip of the support arm 4 of the base 2 and the tip of the mounting arm 8 of the mirror housing 6. A square head 12 is formed at the lower end of the support shaft 11.
1 is inserted from below the attachment arm 8 through the insertion hole 9 of the attachment arm 8 and the insertion hole 5 of the support arm 4, and its square head 12 is a square engagement recess 13 formed on the lower surface of the attachment arm 8. is engaged within. Note that the engagement between the head 12 of the support shaft 11 and the engagement recess 13 of the mounting arm 8 is for the purpose of allowing the mounting arm 8 and the support shaft 11 to rotate integrally. The connection means between the shaft 11 and the mounting arm 8 is not limited to this, and any other connection means may be used as long as the shaft 11 and the mounting arm 8 can rotate together.

Reference numeral 14 denotes a seat attached to a portion of the support shaft 11 that protrudes from the upper surface of the support arm 4, and a coil spring 15 is fitted onto the support shaft 11 between the seat 14 and the upper surface of the support arm 4. It has been reduced. The force of the compressed coil spring 15 to expand causes the lower surface of the support arm 4 and the upper surface of the mounting arm 8 to be brought into pressure contact with each other. 16
is a spur gear fixed to a portion of the support shaft 11 further above the location where the seat 14 is supported.

17 is a housing drive unit in which a motor and other necessary parts are arranged in a case 18, and an output shaft 19.
is projected from the case 18, and the output shaft 19
A crown gear 20 is fixed to the tip of the
The crown gear 2° meshes with a spur gear 16 fixed to the support shaft 11. The case 18 is fixed within the mirror housing 6 by suitable fixing means such as screws.

Reference numeral 21 denotes a motor fixed within the case 18, and a worm 23 is fixed to an output shaft 22 of the motor. A worm wheel 24 is rotatably supported within the case 18, and a spur gear 25 is provided coaxially with the worm wheel 24. 26 and 27 are spur gears provided coaxially, and the larger spur gear 26 meshes with the spur gear 25 coaxially with the worm wheel 24.

A spur gear 28 is fixed to the output shaft 19 and is meshed with the spur gear 27. Therefore, the motor 21
When the motor 21 rotates, the rotation causes the output shaft 22 of the motor 21, the worm 23, the worm wheel 24, the spur gear 25 .
26, 27, and 28, and the output shaft 19 is rotated. When the output shaft 19 rotates, the crown gear 20 fixed thereto rotates, the spur gear 16 meshing with the crown gear 20 is rotated, and the support shaft 11 is accordingly rotated. When the support shaft 11 rotates,
The mounting arm 8, which is rotationally engaged with this, is rotated, thereby causing the mirror housing 6 to tilt relative to the base 2. At this time, the sliding surface 7 of the mirror housing 2 slides against the sliding receiving surface 3 of the base 2.

A mirror 29 is arranged to cover an opening on the rear surface of the mirror housing 6, and is supported by a mirror support 30 made of synthetic resin. A receiver 31 is integrally formed approximately at the center of the back surface of the mirror support 30, and a spherical recess 32 is formed in the receiver 31. A bracket 33 is integrally formed on the inner surface of the mirror housing 6, and a spherical body 34 is formed on the bracket 33. The spherical body 34 is fitted into a spherical recess 32 formed in the receiver 31 of the mirror support 30, whereby the mirror 29 is tiltably supported by the mirror housing 6.

In the door mirror 1 described above, angle adjustment is performed by tilting the mirror 29 directly by hand. When it is desired to change the direction of the mirror 29 from inside the vehicle while driving, etc., the mirror 29 is tilted together with the mirror housing 6 by driving the motor 21 of the housing drive unit 17.

Second Embodiment FIGS. 4 and 5 show a second embodiment of the vehicle rearview mirror of the present invention. In this second embodiment, the rotary output shaft 19 in the housing drive unit) 17 is
is movable and only when the motor 21 is driven,
That is, only when it is necessary to rotate the mirror housing 6 by remote control, the crown gear 20 is engaged with the spur gear 16 of the mirror housing support shaft 11, and at other times, the crown gear 20 is separated from the spur gear 16. This embodiment is characterized by the fact that it is placed in the same position, and other parts are the same as those in the first embodiment described above.

Therefore, only the points that are different from those in the first embodiment will be explained in detail, and the remaining parts will be given the same reference numerals as in the first embodiment and the explanation will be omitted. , or omitted the illustration itself.

35 is a solenoid fixed in the case 18 of the housing drive unit 17, and its operating rod 36 is connected to the connecting rod 3.
The upper end of the output shaft 19 and the output shaft 19 are rotatably connected via the shaft 7 . And in this example,
The output shaft 19 is supported to be rotatable relative to the case 28 and slidable in the axial direction thereof. When the solenoid 35 is not energized, the output shaft 19 is in the state shown by the solid line in FIG.
is excited and the operating rod 36 is drawn into the solenoid 35, the output shaft 19 moves downward as shown by the two-dot chain line in FIG. It meshes with the spur gear 16 fixed to the mirror housing 6, and becomes in a state where the mirror housing 6 can be rotated by the rotation of the motor 21 of the housing drive unit) 17. The solenoid 35 may be energized when the mirror housing 6 needs to be rotated by remote control. For example, the solenoid 35 may also be energized when the drive circuit for the motor 21 is closed.

Incidentally, even when the output shaft 19 is moved as shown by the two-dot chain line in FIG. 5, it is necessary to provide sufficient thickness so that the sparkers 28 and 27 do not come out of mesh with each other.

In this way, by cutting off the engagement between the rotation output shaft and the mirror housing support shaft when the mirror housing 6 is not rotated by remote control, unexpected events such as collision of external objects with the mirror housing 6 can be avoided. When an impact force is applied, the mirror housing 6 can rotate in a direction that alleviates the impact.

Effects of the Invention As is clear from the above description, the first vehicle rearview mirror of the present invention has a mirror housing tiltably supported on a base fixed to the vehicle body side, and a mirror mounted on the mirror housing. The rearview mirror for a vehicle is supported by a housing drive unit including a motor in a mirror housing, a rotation output shaft of the housing drive unit is linked with a mirror housing support shaft, and the motor of the housing drive unit is controlled by remote control. It is characterized in that the mirror housing is rotated relative to the base by rotation.

Therefore, according to the first aspect of the present invention, a vehicle rearview mirror whose mirror angle can be adjusted by remote control can be obtained at low cost.

A second vehicle/S-tsuku mirror of the present invention is a vehicle rearview mirror in which a mirror housing is tiltably supported on a base fixed to the vehicle body side, and a mirror is supported on the mirror housing. A housing drive unit including a motor is supported within the housing, and a rotational output shaft of the housing drive unit is freely engageable and detachable from a mirror housing support shaft, and when the motor of the housing drive unit is not driven, the rotation output shaft and the mirror housing support shaft are connected to each other. are in a disengaged state, and when the motor is rotationally driven, the rotation output shaft and the mirror housing support shaft are in a linked state, so that the mirror housing is rotated relative to the base. .

Therefore, according to the second aspect of the present invention, when a strong external force is applied to the mirror housing, the mirror housing rotates independently of the housing drive unit to alleviate the impact caused by the external force. be able to.

[Brief explanation of drawings]

Figures 1 to 3 show the first part of the vehicle parking mirror of the present invention.
Fig. 1 is a partially cutaway rear view, Fig. 2 is a sectional view taken along line II-II in Fig. 1, and Fig. 3 is a partially cutaway view. 4 and 5 show a second embodiment of the vehicle rearview mirror of the present invention, FIG. 4 is an enlarged sectional view of the main part, and FIG. 5 is an enlarged perspective view of the main part. It is a diagram. Explanation of symbols 1--Vehicle rearview mirror, 2...Base, 6...
・Mirror housing, 11...Mirror housing support shaft, 17φ...Housing drive unit/), 19--One rotation output shaft, 21--Motor, 29-I+6 Mirror Applicant Koito Manufacturing Co., Ltd. Figure 3 7 Figure 4 Figure 5 Figure 2 (/

Claims (2)

[Claims] (1) A vehicle rearview mirror in which a mirror/Using is tiltably supported on a base fixed to the vehicle body side, and the mirror is supported on the mirror housing, and the mirror housing includes a motor/Using drive unit. support,
The rotation output shaft of the housing drive unit is linked with the mirror housing support shaft, and the mirror housing is rotated relative to the base by rotating the motor of the housing drive unit by remote control. Rearview mirror for vehicles (2) A rearview mirror for a vehicle in which a mirror/Using is tiltably supported on a base fixed to the vehicle body side, and the mirror is supported on the mirror/X-Using, and the mirror housing includes a motor/Using. The drive unit is supported, and the rotation output shaft of the housing drive unit is freely engageable and detachable from the mirror housing support shaft, and when the motor of the housing drive unit is not driven, the rotation output shaft and the mirror housing support shaft are in a disengaged state. A rearview mirror for a vehicle, characterized in that, when the motor is rotationally driven, the rotational output shaft and the mirror housing support shaft are connected to each other, so that the mirror housing is rotated with respect to the base.