JPS5915722Y2 - Mirror support device in rearview mirror - Google Patents

Description

[Detailed description of the invention] This invention is designed to reduce the number of parts to be attached and to reduce the number of parts to be assembled by adding innovations to the support device for the mirror body of a rearview mirror that is used by attaching it to the fender or door of a car. The purpose of this project is to propose a mirror support device that greatly improves work efficiency during production and is suitable for mass production.

Generally, rearview mirrors for automobiles have a structure in which the orientation of the mirror body relative to the housing can be freely changed within a certain range, thereby changing (adjusting) the field of view from the driver's seat. However, except during the above adjustment,
In order to prevent the mirror body from unintentionally wobbling due to vibrations or shocks of the automobile, it is necessary to attach the mirror body to the supporting device in a stable and strong manner and to be able to adjust the reflection angle.

For this reason, various support devices have been proposed in the past.
The conventional type has the following drawbacks, and improvements have been desired.

That is, in the conventional mirror support device, for example, as shown in FIG. A bracket 4 is disposed upright within the mirror housing, and a seat 5 is formed on the upper front surface of the bracket to which the spherical protrusion 3 is fitted and rotates freely.

The spherical protrusion 3 is pressed against the front surface of the catch seat 5 by special parts as described below, and these parts make the catch seat 5
The mirror main body 1 and the holder 2 can be freely rotated around the center, and are mounted so that the mirror main body will not unnecessarily wobble due to vibrations or the like.

Note that the spherical protrusion 3 and the seat 5 have through holes 3a and 5a, respectively.
The following connecting devices were loosely inserted into these through holes.

As shown in the exploded view of FIG. 6, this coupling device has a structure in which the bolt 6 is locked inside the spherical protrusion 3 of the mirror holder 2 by a washer 6a so as not to come out from the through hole 3a. The distal end of the catch seat 5 projects rearward through a through hole 5a provided at the rear of the catch seat 5, and a nut 7 is screwed onto the distal end thereof, and a compression spring 8 is inserted between the nut 7 and the bracket 4. A spring holding washer 9 is provided, and the fitting torque between the spherical protrusion 3 and its seat 5 is adjusted by rotating the nut 7 and tightening the compression spring 8.

However, when using this conventional method, as mentioned above, many types of specialized parts are prepared and assembled into a finished product by combining them in a certain connection relationship, so it is difficult to assemble them. It was difficult to increase production efficiency because it required complicated labor.

In other words, with conventional products, when assembling, the nut must be rotated each time to adjust the fitting torque.Furthermore, the bolts often rotate together when the nut is rotated, so it is difficult to prevent them from rotating together. There were also restrictions that required measures to be taken to prevent this.

As described above, the conventional product requires a large number of parts to be assembled, and it is necessary to adjust the fitting torque using bolts and nuts, resulting in poor workability and a structure that is not suitable for mass production.

By the way, as a mirror support device for electric mirrors,
A device disclosed in Japanese Patent Publication No. 51-42382 is also known, but this device has the same structure as the preceding example, and the workability during assembly was poor.

The present invention solves the above-mentioned drawbacks of the conventional device, reduces the number of parts, and at the same time eliminates the need for bolts and nuts during assembly, and also eliminates the need for fitting torque adjustment. This has been improved.

Next, the present invention will be specifically explained based on the accompanying drawings.

Figures 1 and 2 show an embodiment of the present invention.
It is structured as follows.

In the figure, 10 is a mirror main body, and 11 is a mirror holder, and the mirror main body is fitted into the front surface of this holder.

A hemispherical part 1 that protrudes rearward at the center of the mirror holder 11
2 are integrally formed, and a through hole 13 is provided on the top surface of the hemispherical portion 12, into which a mirror clip 14 described below is loosely inserted.

As shown in FIG. 2, the mirror clip 14 is located approximately at a line tangent to the top of the locking plate 15, which is shaped like a bowl or hemisphere and can be slidably fitted into the inner surface of the hemispherical portion 12. It consists of a hook rod 16 that extends straight in a direction at right angles and has a hook portion at its tip.

The hook rods are formed into the shape of hairpins by two hook rods arranged side by side with a small distance between them, and a screw-like pin 23a is attached to the tip of the hook rod as described later.

Thus, a hemispherical locking plate 15 and a hairpin-shaped hook rod 1
The mirror clip 14, which is cut out from the mirror clip 6, can be constructed as an integrally molded product made of polyacetal or other suitable synthetic resin, but of course it may also be constructed of a metal material.

Reference numeral 17 denotes a bracket installed upright within the mirror housing 22, and the hemispherical portion 1 is provided on the upper front surface of this bracket.
A receiving surface 1 configured so that 2 can be fitted and rotated freely.
8 will be provided.

A through hole 19 is formed in the center of the receiving surface 18, as in the case of the hemispherical portion 12, and the hook rod 16 of the mirror clip 14 is loosely inserted into this through hole as described later.

A pocket 20 for storing a coil spring is formed on the back surface of the seat surface, and a coil spring 21 is installed horizontally in this pocket as shown in FIG. so that the hook rod 16 is arranged.

To attach the mirror clip 14 to the mirror holder 11, fit the locking plate 15 into the inner surface of the hemispherical part 12 of the mirror holder 11, loosely insert the hook rod 16 into the through hole 13, and then attach the mirror body 10 to the mirror holder 11. Fix it in the holder.

Next, the hook rod 16 is loosely inserted into the through hole 19 in the bracket 17 while the hemispherical portion 12 is placed on the receiving surface 18 provided on the bracket 17. Insert it into 21.

Also, there is a screw-shaped pin 23a inside the tip of the hook rod 16.
Install.

That is, on the inner surface of the tip of the hairpin-shaped hook rod 16,
When the screw-shaped pin 23a is inserted as shown in FIG. 1, the coil spring 21 as shown in FIG. 1 is held in a compressed state between the pin 23a and the bracket 17.

Thus, the elasticity of the coil spring 21 tends to pull the mirror socket 14 toward the rear surface of the bracket 17, so that the locking plate 15 of the mirror clip is strongly pressed against the inner surface of the hemispherical portion 12 of the mirror holder.

Therefore, the hemispherical portion 12 is strongly pressed against the seat surface 18, and the frictional force between the two allows the mirror holder 11 to be tilted freely relative to the bracket 17, and is fitted extremely firmly without undue wobbling. be.

FIG. 3 shows a modification of the mirror clip used in the present invention, and FIG. 4 is a longitudinal sectional view showing the mirror clip 14□ assembled to the bracket 17.

The mirror clip 142 in this embodiment differs from the embodiment shown in FIG.
This is an example in which the two are integrally formed.

When using this mirror clip 14□ in place of the mirror clip 14, as shown in FIG.
When hooked to the L-shaped claw piece 16C916C, the coil spring 21 is arranged in a compressed state between the L-shaped claw piece 16C and the bracket 17, and there is no need to reinstall screws as in the previous embodiment. As a result, its usability is further improved.

Since the support device of the present invention has the above-described configuration, unlike the conventional example, special bolts and nuts are not required when assembling the mirror holder and the bracket, and therefore, the fitting torque can be adjusted using the bolts and nuts. Since it is not necessary to carry out the following steps, and it is not necessary to take any means to prevent the bolts from rotating together, it is easy to assemble and the work efficiency is greatly improved.

Further, according to the present invention, it is possible to assemble with fewer man-hours without using many types of parts unlike conventional devices, and it is possible to improve production efficiency and reduce costs.

Furthermore, since the mirror clip used in the present invention can be constructed as an integrally molded product made of synthetic resin or metal, it can be manufactured extremely easily and quickly, and parts with accurate dimensions can be formed at low cost.

Further, according to the present invention, the hemispherical portion of the mirror holder is fitted and held by the hemispherical seating surface of the bracket by the elasticity of the coil spring, so that the mirror can be tilted in any direction relative to the bracket, and the mirror can be tilted in any direction. Practical effects can be expected, such as making it easier to adjust the field of view of the mirror and reliably preventing tilting of the mirror except when adjusting.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the mirror support device of the present invention, Fig. 2 is an exploded perspective view of the main parts of the same, Fig. 3 is a perspective view showing another embodiment of the present invention, and Fig. 4 is the mirror support device of the above invention. 5 is a longitudinal sectional view of a conventional mirror support device, and FIG. 6 is an exploded view of the same. 10: Mirror body, 11: Mirror holder, 12: Hemisphere, 13: Through hole, 14.14□: Mirror clip, 15
゜15□: Locking plate, 16a, 16b: Hook rod, 16C
: Claw piece, 17: Bracket, 18: Seat surface, 19: Through hole, 20: Pocket, 21: Coil spring, 22: Mirror housing, 23a: Spring holding screw.

Claims (1)

[Claims for Utility Model Registration] A mirror support device that tiltably supports a mirror holder 11 that fits and holds a mirror 10 in a mirror housing 22; a bracket 17 is fixed in the housing 22; A hemispherical seat surface 18 that opens toward the opening side of the housing is formed on the upper part of the holder 11, and a through hole 19 is provided at the bottom of the holder; A hemispherical part 12 is integrally provided, and a through hole 13 is formed at the top of the hemisphere part 12.
and arrange the hemispherical part 12 on the seat surface 18; arrange a hemispherical locking plate 15 or 15° that is slidably fitted on the inner surface of the hemispherical part 12, and a hemispherical locking plate 15 or 15° that is slidably fitted on the inner surface of the hemispherical part 12, A hook rod 16 is integrally provided which extends in a direction substantially perpendicular to the tangent and has a hook portion at the tip; the hook rod 16 is inserted into the through hole of the hemispherical portion 12 and the through hole 19 of the receiving surface 18. A coil spring 21 is inserted between the hook portion and the bracket 17 so that the hook portion protrudes from the rear of the bracket 17 when inserted loosely.
A mirror support device for a rearview mirror, characterized in that it is formed by contracting.