JPH054447Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a foldable door mirror.

[Prior Art] Door mirrors are installed protruding from the sides of the vehicle body, so there is no risk of collision with external obstacles.
In addition, it may become a nuisance when, for example, the vehicle is parked in a garage.

To solve this problem, foldable door mirrors are used.

FIG. 4 is an exploded perspective view of a known folding door mirror.

A pivot shaft 2 is fixed to a mirror base 1 that is used while being fixed to an automobile body (door part).
This pivot shaft 2 is set to be substantially perpendicular to the earth in the state of use.

On the other hand, a mirror main body 4 is attached to the mirror housing 3, and a bracket 5 is fixed to the mirror housing 3.

A sectional view of the vicinity of the pivot shaft 2 is shown in FIG.

A bearing sleeve 5a is integrally connected to the bracket 5, and the bearing sleeve 5a is fitted onto the pivot shaft 2.

A coil spring 6 is fitted on the outside thereof, and with the coil spring 6 compressed by a washer 7, a retaining ring 8 is engaged with the upper end of the pivot shaft 2 to support the reaction force of the coil spring 6. do.

A pivot shaft 2 that is integrally connected to the mirror base 1 (more specifically, a mounting flange portion of the pivot shaft 2),
A plurality of balls 9 are interposed between the mirror housing 3 and (more specifically, a bracket fixed to the mirror housing 3). This ball 9 fits into a recess 2a provided in the pivot shaft 2, and
Rotation of the mirror housing 3 is stopped with an appropriate force.

The reason why the conventional mirror housing structure is as shown in FIG. 5 is as follows.

() If the mirror housing 3, the bracket 5, and the bearing tube 5a are integrated, the number of component parts can be reduced and costs can be reduced, but if they are made of metal members, it will be heavy and the material cost will increase. This goes against cost reduction efforts. Also,
If it is made of synthetic resin, the bearing tube 5a will lack strength, especially rigidity, and support of the mirror housing will become unstable.

() Therefore, the mirror housing is made of synthetic resin, which is a lightweight material, and the bracket 5 having the bearing sleeve 5a is made of metal, which is a strong material (for example, aluminum die-casting), and the two are fixed to each other.

[Problems that the invention attempts to solve] This invention was created in view of the above circumstances.
The above-mentioned bearing sleeve and mirror housing are integrally connected with each other using a lightweight synthetic resin material, thereby making it possible to reduce costs, and also providing sufficient rigidity to the bearing sleeve to ensure support of the mirror housing. ,
The purpose is to provide a door mirror structure.

[Means for Solving the Problems] In order to achieve the above object, the structure of the present invention includes (a) integrally incorporating a spring receiving member having a surface perpendicular to the pivot shaft at the upper end of the bearing tube; (b) a spring receiving member integrally connected to the bearing sleeve;
(c) a rib is provided that supports the bearing sleeve with respect to a spring receiving member that is integrally connected to the bearing sleeve; (d) the rib is provided with the ball; A hemispherical recess is provided to fit into and hold the hemispherical recess.

[Operation] According to the above configuration, since the mirror housing and the bearing tube are integrally connected, the number of component parts is reduced, which is effective in reducing costs.

Moreover, since the bearing cylinder, mirror housing, and rib are integrally connected to each other and support each other three-dimensionally and have high rigidity, it is possible to reliably support the mirror housing without bending. I can do it.

[Example] Fig. 2 is an exploded perspective view showing one embodiment of the door mirror structure of the present invention, Fig. 1 is an explanatory diagram schematically depicting its cross section, and Fig. 3 is a mirror housing 3' in the above embodiment. FIG.

A flat spring receiving member 11 is provided at the upper end of the bearing sleeve 5a and perpendicular thereto, and is molded integrally with the bearing sleeve 5a and the mirror housing 3' from synthetic resin.

Further, the rib 12 is molded integrally with the bearing sleeve 5a, the spring receiving member 11, and the mirror housing 3 from synthetic resin.

A hemispherical recess 13 into which the ball 9 fits is provided on the bottom surface of the rib 12 (that is, the surface facing the flange portion of the pivot shaft 2).

The bearing tube 5a is rotatably fitted to the pivot shaft 2.

The pivot shaft 2a is set longer than the bearing sleeve 5a. Then, the pivot shaft 2a is connected to the spring receiving member 1.
Projects above 1. A coil spring 6' is externally fitted onto this protrusion, and its lower end is brought into contact with the spring receiving member 11, and with the upper end of the coil spring 6' pressed down and compressed, the push nut 10 is attached to the pivot shaft. It engages near the upper end of 2.

In this embodiment, since the mirror housing 3a and the bearing sleeve 5a are integrally formed of synthetic resin, they are lightweight, have a small number of component parts, and are effective in reducing costs.

In addition, the ribs 12 are integrally connected and support each other three-dimensionally, resulting in high rigidity. Therefore, the mirror housing 3 is reliably supported and has excellent vibration resistance.

[Effects of the invention] As detailed above, according to the door mirror structure of the present invention, the bearing tube and the mirror housing are integrally made of lightweight synthetic resin, making it possible to reduce costs and weight. The mirror housing can be supported reliably.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the door mirror structure of the present invention, with Figure 1 being a schematic sectional view and Figure 2 being a schematic sectional view.
The figure is an exploded perspective view, and FIG. 3 is a partial bottom view of the mirror housing. 4 and 5 show a conventional folding door mirror, and FIG. 4 is an exploded perspective view.
FIG. 5 is a sectional view of the main part. 1... Mirror base, 2... Pivot shaft, 3, 3'
...Mirror housing, 5...Bracket, 5a
...Bearing tube, 6,6'...Coil spring, 9
...Ball, 10...Pushy nuts, 11...
Spring receiving member, 12... rib, 13... recess for ball fitting.

Claims (1)

[Claims for Utility Model Registration] (a) a substantially vertical pivot shaft fixed to the mirror base; (b) a bearing tube fixed to the mirror housing and fitted into the pivot shaft; c) a spring receiving member provided at the upper end of the pivot shaft; a coil spring that biases the mirror housing toward the mirror base; and (e) a ball disposed concentrically with the pivot shaft between the mirror base, which is a stationary member, and the mirror housing, which is a rotating member. (a) a spring receiving member having a surface perpendicular to the pivot shaft is integrally connected to the upper end of the bearing cylinder, and (b) a spring receiving member is integrally connected to the bearing cylinder. Spring receiving member,
(c) a rib is provided that supports the bearing sleeve with respect to a spring receiving member that is integrally connected to the bearing sleeve; (d) the rib is provided with the ball; A door mirror structure characterized by having a recess that fits into and holds the door mirror.