JPH0312595Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a door mirror mounting structure in which a support body of the door mirror rotates relative to a seat attached to an automobile door when a strong external force is applied.

Prior Art Various mounting structures for door mirrors of this type have been known.

For example, an aluminum die-cast or zinc die-cast mirror support that supports the mirror is rotatably attached to the aluminum die-cast or zinc die-cast seat that is attached to the door, and the mirror support is rotatably mounted around the spindle of the seat. A moderation convex portion is provided on the mounting surface, and a moderation concave portion is provided around the spindle of the mirror support, and the moderation convex portion is engaged with the moderation concave portion to position the mirror in a predetermined position relative to the seat. There is something that I tried to keep.

However, with the above structure, each time an external force is applied to the mirror and the mirror support rotates with respect to the seat, the die-cast moderation convex portion and moderation concave portion engage/disengage and engage. Due to this repetition, both the moderating concave part and the convex part wear out, and the moderating convex part in particular wears out significantly, and the play with respect to the moderating concave part increases, causing the difference between the moderating convex part and the concave part in the rotation direction of the mirror support. As the rattling increases, both the rotating surfaces of the mirror support and the seat wear out, causing rattling between the two parts, making it impossible for the door mirror to remain in place and causing the mirror to become damaged due to vibrations while the car is running. There was a problem that vibration caused extremely poor visibility.

Purpose of the invention The purpose of the invention is to solve the above-mentioned problems by preventing wear of the moderating convex portion of the seat and preventing rattling between the seat and the mirror support. An object of the present invention is to provide a mounting structure for a door mirror.

Structure, Function, and Effect of the Invention In order to achieve the above object, the present invention is such that the moderating convex portion of the seat is covered with a steel cover having a hardness different from that of the material of the seat. In other words, a mounting structure for an automobile door mirror is provided, in which a metal die-cast or resin mirror support that supports the mirror is rotatably supported on a support shaft on a metal die-cast or resin seat that is attached to the door. , a plurality of moderation convex portions are provided radially on the mirror support attachment surface around the support axis of the seat, and a ring-shaped rigid cover positioning means is provided on at least one side or both sides of the moderation convex portion; A ring-shaped rigid cover that is harder than the material of the seat and has a wide convex portion that covers the moderating convex portion and a narrow portion that interconnects the wide convex portion is positioned and attached to the outer periphery of the spindle. The mirror support mounting surface of the cover is non-rotatably covered, and a moderating recess that engages with the wide convex portion of the cover is provided around the support shaft of the mirror support.

According to the above configuration, the moderation convex part of the metal die-cast or resin seat is covered with the convex part of the metal cover that is harder than the material of the convex part, and this convex part forms the moderation concave part of the mirror support. The cover is made of a harder material than the mirror support so that the protrusion does not wear out even if the engagement and disengagement and engagement operations are repeated. There is no play between the recesses, and there is no play between the seat and the mirror support. Therefore, if the mirror support is rotated relative to the seat due to the action of an external force and then rotated in the opposite direction to engage the protrusion of the cover with the moderation recess of the mirror support, the mirror will always be aligned with the seat. On the other hand, it can be reliably held in a predetermined position without impairing visibility while the vehicle is running. Further, the cover includes a plurality of wide convex portions, and these wide convex portions contact the lower surface of the mirror support to support the mirror support.
Compared to cases in which the mirror support is supported only by one convex portion or by a narrow portion, the compressive stress acting on the seat from the mirror support through the cover is dispersed. This makes it possible to reduce the compressive stress per each convex portion. In addition, the above-mentioned cover is constructed by connecting a plurality of wide convex parts in a ring shape at the narrow part, and can be integrally attached to the seat. Compared to the case of attaching to the seat, a plurality of wide convex parts can be attached to the seat part at once and easily positioned, making assembly easier. Further, since the ring-shaped rigid cover is positioned with respect to the pedestal by the ring-shaped rigid cover positioning means, it is possible to effectively prevent the ring-shaped rigid cover from shifting when the mirror support is rotated. .

Embodiments The present invention will be specifically described below based on illustrated embodiments.

The mounting structure of the door mirror according to this embodiment is as follows:
As shown in the exploded perspective view in Figure 2 and the cross-sectional view in the assembled state in Figure 2, a mirror case 2 with a mirror support 1 inside is mounted on a seat 4 attached to the outside of the door. 6, it is rotatably installed.

The mirror support 1 is made of metal die-casting or resin, for example aluminum die-casting or zinc die-casting, and supports the mirror in the upper part and integrally forms a mounting part 1a with an inverted concave cross section in the lower part. A support shaft penetration hole 1b is formed in the center of the upper surface of the mounting portion 1a, and the hole 1b
Grooves 1d, . . . , 1d are formed on three sides of the periphery.
A flange 1 protrudes outward on the lower surface of the mounting portion 1a.
c, and on the lower surface of the flange 1c are formed moderation recesses 1e, .

On the other hand, the seat portion 4 is made of metal die-casting or resin, such as aluminum die-casting or zinc die-casting, and protrudes upward from the mirror support mounting surface 4e on the upper surface thereof, and is rotatable into the mounting portion of the mirror support 1. A cylindrical portion 4a that is fitted inside is integrally formed. On the upper surface of this cylindrical portion 4a,
A support shaft penetration hole 4b is formed in the center, and a hole 4b is formed around the axis of the cylindrical part on the mirror support mounting surface 4e around the cylindrical part, corresponding to each moderation recess 1e of the mounting part 1a of the mirror support 1. Moderation convex portions 4c, .
is formed. A ring-shaped cover 3 is placed over the mirror support attachment surface 4e around the cylindrical portion of the seat 4. This cover 3 is made of a metal harder than the material of the seat 4, for example, steel, and has a convex portion 3 that covers each moderation convex portion 4c on the mirror support mounting surface 4e of the seat 4.
a, and downwardly bent locking claws 3b, 3b are provided on both sides of each convex portion 3a. The cover 3 has a wide convex portion 3c in the portion where the convex portion 3a is formed, and the wide convex portions 3c are interconnected at a narrow portion 3d to form a ring shape. The cover 3 includes the seat cylindrical portion 4a.
By fitting each locking pawl 3b into each groove 4d of the mirror support mounting surface 4e of the seat portion 4,
It is non-rotatably placed over the mirror support mounting surface 4e of the seat portion 4.

Further, the support shaft 6 has a flange portion 6a on the lower surface and externally supports the coil spring 5, while
A groove 6b is formed on the upper outer peripheral surface in a direction perpendicular to the axis and symmetrical to the axis.
6b is a cylindrical member. This support shaft 6
With the cylindrical portion 4a of the seat portion 4 fitted into the mount portion 1a of the mirror support 1, the cylindrical portion 4a and each support shaft penetration hole 4b of the mount portion 1a are inserted from below the cylinder.
1b, and a support shaft stopper 9 is fitted into the upper end of the support shaft 6 to hold the support shaft 6 against the mirror support attachment portion 1a. This support shaft stop 9 is made of a U-shaped flat plate, and the inner surfaces 9a, 9 of the U-shaped flat plate are
a is fitted into both grooves 6b, 6b on the upper outer peripheral surface of the support shaft 6, and is provided with claws 9b, 9b, 9b bent downward on the outer surface of the U-shaped flat plate.
are engaged in the respective grooves 1d on the upper surface of the mounting portion of the mirror support 1 and fixed to the mounting portion 1a. Therefore, in the assembled state as described above, the spring force of the coil spring 5 fitted onto the support shaft 6 causes each convex portion 3 of the cover 3 to be placed over the mirror support mounting surface 4e of the seat portion 4.
a engages with each moderation recess 1e of the mounting portion 1a of the mirror support 1 to hold the mirror support 1 in a predetermined position relative to the seat 4. In addition, in Figure 2, 7
is a cap that covers the support shaft mounting hole 4f of the seat portion 4.

Now, when an external force is applied to the mirror case 2 supported by the mirror support 1 on the seat 4, the mirror case 2 rotates with the mirror support 1 in a direction to avoid the external force with respect to the seat 4, and the cover is The respective convex portions 3a of the mirror support 1 are separated from the moderating concave portions 1e of the mirror support 1. On the other hand, the rotated mirror case 1 is
By rotating the cover 3 in the opposite direction by hand and again engaging each convex portion 3a of the cover 3 with each moderation recess 1e of the mirror support 1, it can be easily returned to the original position.

According to this embodiment, the mirror support mounting surface 4e of the die-cast seat 4 is covered with the steel cover 3, and
Since each moderating convex portion 4c of the mounting surface 4e is covered with the convex portion 3a of the cover 3, the convex portion 3 of the cover 3
a is the moderation recess 1 of the die-cast mirror support 1
Even if the engagement/disengagement and engagement operations are repeated with respect to e, the convex portion 3a of the cover 3 will not wear out due to the difference in material hardness between the two members, and therefore the cover 3, that is, the seat portion 4 and the mirror support 1 will not wear out. There is no rattling between the mirrors, and the mirrors do not vibrate even when the vehicle is running, improving visibility. The cover 3 includes a plurality of wide convex portions 3c, 3c, 3c,
In addition, since the plurality of wide convex portions 3c, 3c, 3c contact the lower surface of the mirror support 1 and support the mirror support 1, only one convex portion supports the mirror support. Compared to the case where the mirror support body is supported by a narrow part or a narrow part, the compressive stress acting on the seat part 4 from the mirror support body 1 through the cover 3 is dispersed, and the compressive stress per each wide convex part 3c is Compressive stress can be reduced. Further, the cover 3 has a plurality of wide convex portions 3.
c, 3c, 3c are connected in a ring shape by the narrow parts 3d, 3d, 3d, and can be integrally attached to the seat part 4, so that the wide convex part 3
c, 3c, 3c are attached to the seat part 4 one by one, the plurality of wide convex parts 3c, 3c, 3c
can be attached to the seat part 4 while being easily positioned at one time, making it easy to assemble.
Further, the ring-shaped rigid cover 3 is positioned with respect to the base 4 by engaging the locking pawl 3b with the groove 4d, which is an example of the positioning means for the ring-shaped rigid cover, so that the mirror support 1 cannot be rotated. When this occurs, displacement of the ring-shaped rigid cover 3 can be effectively prevented.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a door mirror mounting structure according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing the assembled state. 1... Mirror support body, 1e... Moderation recess, 3
...Cover, 3a...Protrusion, 4...Seat, 4c...
... Moderation convex part, 6... Support shaft.

Claims (1)

[Claims for Utility Model Registration] A metal die-cast or resin mirror support 1 that supports a mirror is rotatably supported on a support shaft on a metal die-cast or resin seat 4 that is attached to a door. In the mounting structure of an automobile door mirror, a mirror support mounting surface 4 around the support shaft of the seat 4 is provided.
e is provided with a plurality of moderation convex portions 4c radially, and a ring-shaped rigid cover positioning means is provided on at least one side or both sides of the moderation convex portion 4c, and the material is harder than the material of the seat portion 4, and A ring-shaped rigid cover 3 having a wide convex portion that covers the moderation convex portion 4c and a narrow portion that interconnects the wide convex portion is positioned and attached to the outer periphery of the support shaft to attach the mirror support to the seat portion 4. A mounting structure for a door mirror for an automobile, characterized in that a moderation recess 1e is provided around the spindle of the mirror support 1, the moderation recess 1e covering the surface 4e in a non-rotatable manner and engaging with the wide convex portion of the cover 3.