JPH0444447Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention allows the mirror body to be displaced not only in the front and rear directions but also three-dimensionally with respect to the base, and moreover, it can remain tilted at any position. The present invention relates to a mounting mechanism for a foldable door mirror that can be placed in place.

[Prior Art] This technology has conventionally been used in foldable door mirrors that can rotate the mirror body in the front-rear direction of the vehicle to avoid the impact when the door mirror hits a driver, motorcyclist, etc. while the vehicle is running. One known example of a mounting mechanism for a door mirror that uses a ball-and-socket joint between a mirror body and a base is known.

[Problems to be solved by the invention] Conventional mounting mechanisms using such ball-and-socket joints can displace the mirror body not only in the front-rear direction but also three-dimensionally with respect to the base. Since there was nothing to restrict the tilting range of the body, the mirror body and other objects interfered with each other, causing paint to peel off.

In addition, when the mirror body is tilted, the ball joint slides and wears out, and the torque feeling deteriorates due to the scrapes, and the ball and ball joint parts sometimes corrode.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a mounting mechanism for a foldable door mirror that can restrict the rotation range of the mirror body.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a hollow hemispherical protrusion on the upper side of the stand extending outward from the lower part of the base, and the protrusion is formed by the protrusion. The concave spherical surface on the mirror body side is fitted into the convex spherical surface formed by the protrusion, and the hemispherical cap is fitted into the concave spherical surface formed by the protrusion, and the square root bolt inserted from the mirror body side is fitted into both the above-mentioned fittings. In a folding door mirror in which the mirror body is elastically supported by penetrating through the joint, a square hole with a lip is provided on the underside of the cap, and an engagement hole that fits with the lip of the cap allows the mirror to rotate relative to the cap. The plates to be stopped are overlapped, and a stopper is extended to a part of the outer periphery of the plate, and the stopper is attached to the inner wall of the pedestal part of the base, and extends vertically in the attached state, and comes into contact with the stopper and extends in the horizontal direction of the mirror body. A pair of opposing stopper protrusions protruding from the front and rear are used to restrict the rotation range of the holder.

[Function] The convex spherical surface of the hollow hemispherical protrusion provided on the upper side of the base is fitted with the concave spherical surface on the mirror body side, and the concave spherical surface of the protrusion on the upper side of the base is fitted with the hemispherical cap, By passing bolts through both fitting parts and elastically supporting them, the reflection angle of the mirror is maintained.

On the other hand, if the mirror body hits a driver, motorcycle driver, etc. while the vehicle is running, the mirror body rotates toward the front or rear of the vehicle. At this time,
The concave spherical surface on the mirror body side and the convex spherical surface on the base part slide, and the cap, which is connected to the mirror body by bolts, rotates with the rotation of the mirror body and slides on the concave spherical surface on the base part. . In addition, the plate, which is fixed and prevented from rotating by a square hole with a lip formed on the underside of the cap, also rotates with the cap, and when it rotates to the point where the mirror body is located,
The stopper of the plate comes into contact with a stopper protrusion formed on the inner wall of the base portion to stop the rotation of the mirror body.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a longitudinal sectional view showing an embodiment of the mounting mechanism of the foldable door mirror of the present invention, and Fig. 2 is an exploded perspective view showing a mirror body 2 holding a mirror 1 and a base 6 attached to the vehicle body. It is rotatably mounted on the

The mounting mechanism of this invention is mirror body 2 and base 6.
The convex spherical surface 8a of the hollow hemispherical protrusion 8 provided on the upper side of the pedestal 7 extending from the lower part of the base 6 is fitted with the concave spherical surface 3 of the mirror body 2, and the pedestal The concave spherical surface 8b of the protrusion 8 of 7 and the hemispherical cap 11 are fitted, and the plate 15 having the stopper 17 is superimposed on the lower surface of the cap 11, and the square root bolt 25 is passed through these, and the coil spring 20 and the seat While being resiliently supported by a nut 21, a stopper projection 10 is formed on the inner wall of the platform 7 of the base 6.

Next, the configuration of each part will be explained in detail.

The mirror body 2 has a concave spherical surface 3 on the lower surface on the base side, and a square shaft portion 26 of a square root bolt 25 is mounted on the top of the concave spherical surface 3.
A square hole 5 is formed into which the square root bolt 25 is inserted, and a guide 4 is formed at the upper end thereof to fit with the top portion 27 of the square root bolt 25.

The platform 7 extending from the lower part of the base 6 has a hollow interior, and a protrusion 8 consisting of a convex spherical surface 8a and a concave spherical surface 8b is formed on the upper side, and the top of the protrusion 8 has a corner. A circular opening 9 that is slightly larger than the square shaft portion 26 of the root bolt 25 is provided. In addition, at opposing positions on the front and rear inner walls of the base section 7, in the installed state, there are extending vertically on the inner walls, and contacting the stopper 17 to restrict the rotation range of the mirror body in the horizontal direction. A pair of front and rear stopper projections 10, 10 are provided protrudingly.

The cap 11 is molded from a friction-reducing resin.
Convex spherical surface 14 that fits into concave spherical surface 8b of base part 7
The square shaft part 2 of the square root bolt 25 is located at the center of the square root bolt 25.
A square hole 12 into which 6 is inserted is provided. A lip 13 is formed at the edge of the square hole 12 on the lower surface of the cap 11. A metal plate 15 that comes into contact with the lower surface of the cap 11 has the cap 1 at its center.
An engagement hole 16 is formed to fit into the lip 13 of the holder 1, and a stopper 17 extends from a part of the outer periphery of the pedestal formed in the shape of a thin disc.

Next, the assembly of this attachment mechanism will be explained. First, the square root bolt 25 is inserted into the square hole 5 of the mirror body 2, and the top portion 27 of the square root bolt 25 is fitted into the guide 4. Next, the concave spherical surface 3 of the mirror body 2 is fitted into the convex spherical surface 8a formed on the upper side of the pedestal part 7 of the base 6, the cap 11 is inserted from the lower side of the pedestal part 7 of the base 6, and the corner of the square root bolt 25 is inserted. The shaft portion 27 is inserted through the square hole 12 of the cap 11, and the convex spherical surface 14 of the cap 11 is fitted into the concave spherical surface 8b of the base.

The plate 1 is moved so that the stopper 17 faces toward the mirror body 2 and the lip 13 on the lower surface of the cap 11 fits into the engagement hole 16 of the plate 15.
5 is brought into contact with the lower surface of the cap 11. Then,
A coil spring 20 is installed around the outer periphery of the threaded portion 28 of the square root bolt 27, and the seat nut 21 is attached to the threaded portion 28 of the square root bolt 27.
8, and the mounting mechanism is assembled (Fig. 1).

FIG. 3 shows a plan view of the mounting mechanism assembled in this way, viewed from below the base 6.
Protrusions 10, 10 are formed opposite to the inner wall of the platform 7, and the stopper 17 of the plate 15 in normal use is oriented perpendicularly to the protrusions 10, 10. A coil spring 20 compressed between the plate 15 and the seat nut 21 is connected to the cap 11.
is pressed against the concave spherical surface 8b of the base portion 7, and the convex spherical surface 8a of the base portion 7 is further pressed against the concave spherical surface 3 of the mirror body 2, thereby applying an appropriate fitting torque. Therefore, the reflection angle of the mirror 1 is maintained without being easily changed due to vibrations or wind pressure while the vehicle is running.

Now, when the mirror body 2 hits a rider, motorcycle driver, etc. while driving, the mirror body 2 rotates against the pressing force of the coil spring 20.
Shocks are avoided. At this time, the mirror body 2 and the cap 11 are fitted into the square shaft part 26 of the square root bolt 25, so they rotate together, but the opening made at the top of the protrusion 8 of the base 6 is connected to the square shaft part 26. Since the opening is slightly larger than 26, the square root bolt 25 can freely rotate within the opening 9. Therefore, the mirror body 2 and the cap 11 are integrated and rotate with respect to the base 6, but since the cap 11 is molded from a friction-reducing resin, it can be prevented from being scraped or worn. There is no need to worry about deterioration of torque feeling or corrosion caused by debris. Also,
Lip 13 and plate 15 on the underside of cap 11
Since the plate 15 is fitted with the engagement hole 16 of the mirror body 2, the plate 15 also rotates as the mirror body 2 rotates, and when the mirror body 2 rotates approximately 90 degrees with respect to the base, as shown by the chain line in FIG. A stopper 17 of the plate 15 comes into contact with a protrusion 10 formed on the inner wall of the base portion 7 to prevent the mirror body 2 from rotating any further.

In this way, the rotation range of the mirror body 2 is regulated.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to these embodiments. For example, in the embodiment, a concave spherical surface is formed on the mirror body, but a convex spherical surface may be formed on the mirror body and fitted with the concave spherical surface of the base.

[Effects of the invention] As is clear from the above explanation, according to the invention, the mirror body is rotatably and elastically supported with respect to the base via the base and the cap that constitute a ball and socket joint. When the door mirror hits a pedestrian, motorcyclist, etc., the door mirror rotates from its neutral position to the regulation position in front of the vehicle or the regulation position at the rear of the vehicle in response to the impact, and responds to the external force. The tilted state will remain as it is unless you raise it by adding . Furthermore, if an external force is applied to the mirror body from above or below or from an angle, the mirror body will be displaced three-dimensionally in response, but even during this rotation, the mirror body will not be able to maintain its front or rear regulation position. Moreover, it is maintained in the tilted position without being displaced. Therefore, the mirror body can be prevented from rotating beyond a predetermined range and hitting the door or the vehicle body, thereby preventing damage to the mirror body itself, the door, or the vehicle, and peeling of the paint.

Furthermore, the present invention provides a hollow hemispherical protrusion on the upper side of the base, and allows the concave spherical surface on the mirror body side to fit into the convex spherical surface formed by the protrusion. A hemispherical cap is fitted to the spherical surface, a square hole with a lip is provided on the lower surface of the cap, and a plate is overlapped to prevent rotation relative to the cap by an engagement hole that fits with the lip of the cap. A stopper is extended to a part of the outer periphery, and a stopper is provided on the inner wall of the base part,
The convexity of the ball-and-socket joint is because it has a pair of opposing stopper protrusions protruding from the front and rear that extend vertically in the installed state and come into contact with the stopper to restrict the range of horizontal rotation of the mirror body. The stopper and the stopper protrusion can be provided at positions unrelated to the spherical surface and the concave spherical surface. Therefore, the torque of the ball-and-socket joint can be easily stabilized, and the torque of the ball-and-socket joint can be easily adjusted by adjusting the square root bolt. It has the advantage of being able to In addition, if the cap that fits into the base part is molded from a friction-reducing material, the friction between the base part and the cap will be reduced, which will prevent the base part and the cap from being scraped and worn due to the rotation of the mirror body. Good torque feeling.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is a plan view illustrating the operation. 1... Mirror, 2... Mirror body, 3... Concave spherical surface, 4... Guide, 5... Square hole, 6... Base,
7...Table part, 8...Protrusion part, 8a...Convex spherical surface, 8b
... Concave spherical surface, 9 ... Opening, 10 ... Protrusion, 11
... Cap, 12 ... Square hole, 13 ... Lip,
14... Convex spherical surface, 15... Plate, 16... Engaging hole, 17... Stopper, 20... Coil spring, 21... Seating nut, 25... Square root bolt, 26... Square shaft portion, 27...Head, 28...Screw part.

Claims (1)

[Claims for Utility Model Registration] 1. A hollow hemispherical protrusion is provided on the upper side of the stand extending outward from the lower part of the base, and a concave spherical surface on the mirror body side is formed by the convex spherical surface formed by the protrusion. At the same time, a hemispherical cap is fitted to the concave spherical surface formed by the protrusion, and a square root bolt inserted from the mirror body side is passed through both fitting parts to make the mirror body elastic. In the supported folding door mirror, a square hole with a lip is provided on the lower surface of the cap, and a plate that is prevented from rotating with respect to the cap by an engagement hole that fits with the lip of the cap is overlapped, and the outer circumference of this plate is A stopper is partially extended, and a pair of front and rear opposing panels are provided on the inner wall of the base part, which extend vertically in the installed state and come into contact with the stopper to restrict the rotation range of the mirror body in the horizontal direction. A folding door mirror with a protruding stopper protrusion. 2. The folding door mirror according to claim 1, wherein the cap is molded from a friction-reducing material.