JPS5851075Y2 - Automotive back mirror installation mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the mechanism for attaching an automobile rearview mirror.

Cars, especially freight cars, have different body suspension structures than general passenger cars, and vibrations during driving are strongly transmitted to the car body. Therefore, rearview mirrors installed in such cars must have so-called vibration resistance in their supporting parts. It is required that the structure has the following characteristics.

However, as is well known, rearview mirrors are rarely installed uniformly on the vehicle body, and because it is necessary to make fine adjustments so that the rear can be viewed optimally from the driver's seat depending on the driver's physique, etc., rearview mirrors are installed at the tip of the arm. It is a requirement that the mounting structure be rotatable.

It is also a desirable requirement that this installation be structured to have as few parts as possible and to be easily assembled.

The purpose of the present invention is to satisfy these requirements, simplify the mounting structure, and improve the mounting mechanism of an automobile rearview mirror so that it can be provided at low cost without increasing production costs. .

That is, in the present invention, a seat piece made of a metal plate with a spherical groove formed in the center is partially embedded in the mirror mounting body at a proper location, and is fixed integrally with the mirror mounting body. A screw fastening piece is provided at one position on a straight line passing through the center of the sleeping area at an appropriate distance from the sleeping area, with the shaft core protruding in a direction perpendicular to the surface, and the sleeping area is connected to a support body to the vehicle body. The spherical end of the arm is brought into contact with the spherical end of the arm, and the peripheral edge of the hole inserted through the arm is engaged with the spherical surface of the end of the arm.

A holding plate with a bulging curved surface is disposed, and one end of the holding plate is locked in a notch formed in the upper part of the fixing end of the catch piece of the mirror mounting body or in a locking bulge formed in the end of the catch piece. The fixing screw piece is screwed onto the screw fastening piece through a fastening hole drilled on the opposite side of the locking end, so that the mirror mounting body is swingably attached to the end of the support arm. be.

Below, the present invention will be described in detail with reference to drawings regarding one embodiment.
In FIGS. 1 and 2, reference numeral 1 denotes a mirror mounting body, which is generally made of synthetic resin and formed into a desired external shape, and in this specific example, only the main parts that are the object of the invention are shown.

Reference numeral 2 denotes a mounting seat, which is provided at a required position according to the shape of the mirror mounting body, and is assembled into a mirror mounting body by combining a seat piece 3 made of a metal plate and a fastening piece 4 with a female screw hole during molding. It is done in one piece.

The seat piece 3 forms a spherical rest 5 approximately in the center, and the post 4' of the fastening piece 4 is protruded from the surface by an appropriate size at a position separated by an appropriate dimension on a straight line passing through the center of this rest 5. It has a rectangular shape with a through hole 6 formed therein (it can be made into a shape other than a rectangle if necessary).

7 is a holding plate, and as shown in FIGS. 1 and 2, the peripheral edge 3' is bent upward in the figure by an appropriate amount at the center of the dowel.
An arm insertion hole 8 is provided on the inner side of the peripheral edge portion 8', and the arm insertion hole 8 is formed into a spherical surface having the same radius as the spherical surface of the seat piece 3.
Attachment holes 9 are bored on a longitudinal straight line passing through the center of the seat piece 3 at intervals corresponding to the interval P between the spherical rest 5 of the seat piece 3 and the fastening piece 4, and on the opposite side to the drilling position of the attachment holes 9. As shown in the figure, the end portion is formed into a narrow tip portion and a locking portion 10 is integrally formed therein.

Reference numeral 11 denotes a locking groove carved in a recess forming the mounting seat 2 of the mirror mounting body 1.

The spherical support part at the tip of the arm 20 is attached to the central spherical rest of the seat piece 3 fixed to the mounting seat 2 portion of the mirror mount body 1 via the support arm or support body attached to the vehicle body. 21, insert the arm 20 from behind into the insertion hole 8 in the center, engage the locking part 10 of the presser plate T with the locking groove 11 provided in the mounting seat 2, and then press the other end of the crest presser plate 7. By screwing and tightening the bolt 15 into the female threaded hole of the fastening piece 4 through the mounting hole 9 of the part, the presser plate T is attached to its locking part 10.
The peripheral edge part 8 of the insertion hole 8 is centered around the engagement part between the locking groove 11 and the locking groove 11.
The arm 200 and the spherical support part 21 are clamped by the spherical recess of the seat piece 30 and the arm 200 is clamped, and by adjusting the fastening force of the bolt 15, the clamping contact resistance between the spherical seat 5 and the peripheral edge part 8' of the holding plate is reduced. is adjusted so that the mirror mounting body 1 can swing relative to the arm 20 and is not easily displaced by vibration after adjustment.

Regarding the configuration in which the arm 200 and the spherical support portion 21 are held between the mating seat piece 3 and the presser plate 7, the locking portion 10 of the presser plate 7
may be engaged with a locking receiving piece 12 which is formed by punching out a part of the end of the receiving seat piece 3 in advance and bending it to the surface side as shown in FIG. Mirror mounting body 1
Since there is no need to provide a locking groove on the side, the mold for molding is simplified and the molding process becomes easier, and in terms of strength, since the metals are locked together, the structure can be made stronger.

As long as an opening into which the locking portion 10 can be inserted is provided, the locking receiving piece 12' portion of the receiving seat piece may be formed as a bulge on the surface side of the receiving seat piece 3, as shown in FIG.

Furthermore, as a fastening mechanism, instead of fixing the fastening piece 4 having a female screw hole as described above on the □ roller mounting body 1 side, a male screw 14 is used.
The fastening piece 14 provided with '' may be integrally molded and fixed as shown in FIG.

In the present invention, by having the structure as described above, the catch piece 3
If it is integrally molded and fixed to the mounting seat 2 position at the required location of the mirror mounting body 10 during molding, the tip spherical support part 21 of the arm can be connected to the insertion hole peripheral part 3' of the holding plate T as described above during assembly. By adjusting the force at the fastening part sandwiched between the spherical seat 5 and the spherical rest 5, it is easy to assemble the mirror mount so that the swing direction positioning of the mirror mount is vibration resistant and can be freely adjusted. This has improved productivity and made it possible to provide reliable products at low prices.

Also, the mounting seats can be installed at any location without requiring any special conditions.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a vertical sectional view of a main part of one specific example, Fig. 2 is an exploded perspective view of the thing shown in Fig. 1, and Fig. 3 is a longitudinal sectional view of another example. FIG. 4 is a separate perspective view of the seat piece, and FIG. 5 is a vertical sectional view of another example of the fastening portion. 1...Mirror mounting body, 2...Mounting seat,
3... Seat piece, 4, 14... Seed piece, 5
... Spherical bed, 7 ... Pressing plate, 8 ...
...Arm insertion hole, 8 (...peripheral part, 9...
...Mounting hole, 10...Locking part, 11...
...Latching groove, 12.12/-...Latching piece, 20
... Arm, 21 ... Spherical support part.

Claims (1)

[Scope of utility model registration request] A seat piece made of a metal plate with a spherical rest formed in the center is partially embedded in the mirror mounting body at a proper place on the mirror mounting body, and is fixed integrally, passing through the center of the rest of the seat piece. A screw fastening piece is provided at one position on a straight line at an appropriate distance away from the rest, with the shaft center protruding in a direction perpendicular to the surface, and a spherical part at the end of the arm connected to the support for the vehicle body is attached to the rest. Behind this spherical part, there is arranged a holding plate with a bulging curved surface so that the peripheral edge of the hole through which the arm is inserted engages with the spherical surface at the tip of the arm, and the holding plate has one end connected to the receiving part of the mirror mounting body. The screw fastening piece on one side of the seat is engaged with a notch formed in the upper part of the fixing end of the seat piece, or with a locking part formed on one end of the catch plate, and then through a fastening hole drilled on the opposite side of the locking end. The mounting mechanism for automobile rearview mirrors consists of screwing together a screw piece and attaching a mirror mounting body to the end of the support arm.