JPS6037857Y2 - Automotive outside mirror - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an outside mirror for an automobile, and more particularly to an outside mirror for an automobile in which the mounting angle of the mirror can be adjusted by a drive motor or the like.

This type of outside mirror is attached to the fender or door of an automobile, and is configured so that the angle of the mirror can be adjusted by remote control from the driver's seat.

Further, when the mirror vibrates due to engine vibration or wind pressure applied during driving, flickering occurs in the mirror, so various structures are used to reduce the vibration of the mirror.

For example, in the conventional outside mirror shown in FIG. 1, a mirror mounting part is fixed to a fixed housing a, and a mirror back plate C is rotatably mounted to the mounting part.
At the periphery of the mirror d, a vibration damping member e is provided which is elastically biased only in a direction perpendicular to the direction of movement of the mirror d and is always in sliding contact with the inner wall surface of the fixed housing a.

This outside mirror, while the mirror back plate C is rotating,
The vibration damping member e slides into contact with the inner wall surface of the fixed housing a, thereby damping the vibration of the mirror d.

By the way, in the conventional outside mirror shown above, the vibration damping member e is attached to the mirror back plate C, so not only the vibration damping member e but also the member f for attaching this is required, which makes the assembly difficult. The problem is that it takes time and effort.

Moreover, since the number of parts that make up the entire outside mirror is quite large, there is a problem that the number of assembly steps is further increased.

In view of the above-mentioned conventional problems, the present invention aims to provide an outside mirror for an automobile that can reduce the number of assembly steps and can reliably damp the vibrations of the mirror.

Hereinafter, details of the present invention will be explained with reference to FIGS. 3 to 14.

3 to 8 show a first embodiment in which the outside mirror for an automobile according to the present invention is applied to an electric remote control mirror.

In the figure, 1 is a mirror, and this mirror 1 is fixed to a mirror body 2.

The mirror body 2 is molded from synthetic resin or the like, and the mirror 1 is fitted into a peripheral edge 3 formed on the front surface thereof.

Reference numeral 4 denotes a support body made of synthetic resin or the like, which in this embodiment is a case housing a power transmission mechanism such as a drive motor.

This support body 4 is connected to the mirror body 2 via a first universal joint 5.
is attached so that the mirror body 2 can tilt around the center position A of the first universal joint 5.

The first universal joint 5, as shown in FIGS. 4 to 7,
A hemispherical head seat 7 formed on the front part of the attachment part 6 provided on the support body 4
and a hemispherical part 8 formed on the back surface of the mirror body 2, and a coil spring 1 that connects the hemispherical part 8 to the hemispherical head seat 7.
The holding member 9 is configured to be held against impact by the elastic force of 4, and a retaining plate 12 and a bolt 13 that allow the holding member 9 to be supported by a support protrusion 11 protruding from the top of the hemispherical head seat 7.

The hemispherical head seat 7 includes a support protrusion 11 provided at the top thereof;
It has an annular recess 10 formed around the support protrusion 11.

The hemisphere portion 8 has a uniform wall thickness and is formed into a cylindrical shape with an open top.

Further, as shown in FIG. 8, the center of the hemispherical body portion 8 is located at a position slightly shifted toward the front of the mirror body 2 with respect to the center position A1 of the first universal joint 5, that is, the center A of the hemispherical head seat 7. Therefore, it is set to have a slight clearance B when in contact with the hemispherical head seat 7.

The holding member 9 has a hemispherical portion 9 that abuts against the inner wall of the hemispherical portion 8.
a, and a protrusion 9b which protrudes from the top of the hemispherical part 9a and fits into the annular recess 10.

This holding member 9 is attached to the support protrusion 11 with a retaining plate 12.
is supported by attaching it with bolts 13.

Further, a locking portion 9c is provided at the tip of the protruding portion 9b, and a coil spring 1 is provided between the locking portion 9c and the removal stop plate 11.
4 is compressed, and the holding member 9 holds the hemispherical portion 8 against the hemispherical head seat 7 by the elastic force of the coil spring 14.

Therefore, the hemispherical portion 8 of the mirror body 2 is connected to the first universal joint 5.
It is designed to be able to tilt around center position A.

Note that 15 is an assembly hole provided in the mirror body 2.

Further, the support body 4 and the mirror body 2 are connected to each other by a second universal joint 16.
The second universal joint 16 transmits power to the mirror body 2 through the second universal joint 16.

That is, in the second universal joint 16, a spherical portion 18 is provided on the drive shaft 17 that protrudes from the support body 4, and a spherical seat 20 that fits into the spherical portion 18 is formed on a convex portion 19 provided on the back surface of the mirror body 2. The mirror body 2 is operated by moving the drive shaft 17 forward and backward by a drive motor (not shown).

Therefore, the outside mirror for an automobile according to the present invention is equipped with a vibration damping mechanism.

The vibration damping mechanism includes a spherical wall portion 2 on the back surface of the mirror body 2.
2 is formed at a radial position centered on the center position A of the first universal joint, and a spherical seat 23 that abuts against the spherical wall portion 22 is formed at the front portion of the support body 4.

The spherical wall portion 22 is formed into a hollow spherical body with an outer wall surface having a radius centered on the center position A.

The length of this spherical wall portion 22 is longer than that of the hemispherical portion 8 on the back surface of the mirror body 2.

The spherical seat 23 has an inner wall surface having the same radius as the spherical wall portion 22, and is divided into four pieces so as to surround the hemispherical head seat 7 at approximately the same intervals. There is.

Further, as shown in FIGS. 9 to 11, the spherical wall portion 22
may be formed at substantially opposing positions, and may also be provided at a position outside the second universal joint 16 with respect to the center position A.

In this case, as a matter of course, the spherical seat 23 is provided at a position corresponding to the spherical wall portion 22 of the support body 4.

Alternatively, as shown in FIGS. 12 and 13, mounting brackets 4a may be extended on both sides of the support body 4, and the spherical seats 23 may be provided on the brackets 4a.

Furthermore, as shown in FIG. 14, the spherical seat 23 may be integrally formed with the mirror housing 24 to which the support body 4 is fixed.

The outside mirror for an automobile according to the present invention has the above-mentioned structure, and in order to assemble it, press the hemispherical part 8 against the hemispherical head seat 7 while pushing the spherical wall part 22 of the mirror body 2 into the spherical seat 23. Next, the protruding portion 9b of the support member 9 is fitted into the annular recess 10 of the hemispherical head seat 7, and the hemispherical portion 9a is brought into contact with the inner wall of the hemispherical portion 8.

After that, insert the coil spring 14 into the protrusion 9b,
A retaining plate 12 is tightened by a bolt 13 onto the support protrusion 11 which is fitted into the holding member 9.

In that case, a clearance B is created between the hemispherical head seat 7 and the hemispherical body part 8, but the hemispherical body part 8 is bent by its own elastic force due to the tightening force of the bolt 13, and the entire surface of the hemispherical head seat 7 is The first universal joint 5 is assembled by being pressed into contact with the first universal joint 5.

At the same time, the annular wall portion 22 is inevitably brought into contact with the spherical seat 23.

The second universal joint 16 is assembled before or during the first universal joint, and the mirror 1 is fixed to the mirror body after the first universal joint is assembled.

In this way, in the present invention, the first universal joint 5.16
It is possible to assemble the vibration damping mechanism simply by assembling the vibration damping mechanism.

In addition, the vibration damping mechanism includes the mirror body 2 and the support body 4, respectively.
Or, since it is formed integrally with the mirror housing,
There is no increase in the number of parts.

As a result, compared to the conventional example which has a large number of parts, the number of assembly steps can be greatly reduced.

Further, the spherical wall portion 22 of the vibration damping mechanism is connected to the mirror body 2.
When it tilts, it moves in a radius around the center position A, so it is always in a state of collision with the spherical seat 23.

Therefore, even if vibration occurs in the mirror 1, the vibration of the mirror 1 can be reliably damped.

Furthermore, a spherical wall portion 22 constituting the vibration damping mechanism of the present invention
Since the spherical seat 23 and the spherical seat 23 are made of a resin molded product, the dimensions may not always be accurate depending on the temperature conditions during molding, and sometimes the contact between the spherical wall portion 22 and the spherical seat 23 may be uneven during assembly. However, in the present invention, as mentioned above, the first
The center of the hemispherical body 8 constituting the universal joint is slightly shifted forward to provide a slight clearance B between it and the hemispherical head seat 7, and the hemispherical head seat 7 is forcibly moved by the tightening force of the bolt 13.
Since the bolt 13 is assembled by pressing the
The spherical wall portion 22 is pressed into contact with the spherical seat 23 by the tightening force, and the spherical seat 23, which is formed by dividing, is bent by the tightening force and absorbs the variation in dimensions, and the spherical wall portion 22 and the spherical seat 23 are It is possible to maintain a good and uniform state of contact, thereby achieving the vibration damping effect.

Although the illustrated embodiment shows an example in which the present invention is applied to an electric remote control mirror, the present invention can also be applied to a device in which a link mechanism or the like is used instead of a drive motor and the mirror 1 is tilted by manually operating the link mechanism. be able to.

Furthermore, an example has been shown in which the spherical wall portion 22 of the vibration damping mechanism is provided on the mirror body 2, and the spherical seat 23 is provided on the support body 4 or the mirror housing 24, respectively, but as described above, both may be provided in reverse. According to the present invention, an extremely effective vibration damping prevention effect can be achieved even if there are variations in dimensions due to the synthetic resin shape, and the number of assembly steps can be reduced by reducing the number of parts. This has the effect of providing an automobile outside mirror that is easy to assemble.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a conventional outside mirror structure Jf, and FIG. 2 is a rear view thereof. FIG. 3 is a rear view showing an example in which the outside mirror for an automobile according to the present invention is applied to an electric remote control mirror, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3, and FIG. FIG. 6 is a front view of the support body, FIG. 7 is a rear view of the mirror body, FIG. 8 is an explanatory diagram showing the state at the start of assembly, and FIG. 9 is an exploded sectional view of the universal joint. 10 is a rear view of the support body,
FIG. 11 is a perspective view of the mirror body, FIG. 12 is a sectional view of main parts showing still another embodiment using a hemispherical head seat 7, and FIG.
The figure is a front view of the support body, and FIG. 14 is a sectional view of the main part showing still another embodiment according to the present invention. 1...Mirror 2...Mirror body,
4... Support body, 24... Mirror housing, 5... First universal joint, 7... Hemisphere head seat 7.8... - Hemisphere portion, 9... Holding member, 16... Second universal joint, 21...
...Vibration damping mechanism, 22... Spherical wall portion, 23.
... Spherical seat.

Claims (1)

[Claims for Utility Model Registration] A fixing member consisting of a support and a mirror housing that fixes the support, a mirror body tiltably attached to the fixing member via a first universal joint, and a mirror fixed to the mirror body. a transmission mechanism that transmits power to the mirror body via a second universal joint; and a vibration damping mechanism, wherein the first universal joint includes a hemispherical seat provided on the support body and a hemispherical seat provided on the support body. a support protrusion provided on the mirror body, a hemispherical portion formed on the back surface of the mirror body, a holding member that abuts and holds the hemispherical portion against the hemispherical seat via a coil spring, and a drawer that supports one end of the coil spring. a bolt supporting the retaining plate on the support protrusion, and the center of the hemispherical part is located forward of the center of the hemispherical seat so that a clearance is created between the hemispherical seat and the hemispherical part. , the vibration damping mechanism includes a spherical wall formed on one of the mirror body and the fixed member in a hemispherical position centered on the center position of the first universal joint, and a spherical seat that abuts the spherical wall on the other. is formed at the same radial position as the spherical wall portion, and at least the spherical seat is divided at intervals, and by tightening the bolt of the first universal joint, the hemispherical seat of the first universal joint and the hemispherical portion are separated. An outside mirror for an automobile, characterized in that the spherical seat of the vibration damping mechanism and the spherical wall are forcibly brought into contact with each other.