JPH0110280Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a mounting structure for a door mirror for an automobile, in which a door mirror case rotates relative to a seat attached to a door of the automobile when a strong external force is applied.

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

For example, the seat portion 2 may be formed of a vertically elongated door attachment portion and a mirror case support portion that protrudes laterally from the attachment portion, and the door attachment portion of the seat portion may be attached to the outside surface 3 of the door. There is one in which the mirror case 1 is rotatably supported on a mirror case support part of the seat.

By the way, in the structure described above, in order to make the mirror case 1 rotatable with respect to the seat portion 2,
A gap 4 is provided at a constant interval between the seat and the mirror case, but when the car is running, wind 5 enters the gap 4 as shown in Figure 1, causing so-called wind noise. It was hot. this is,
This is because the air flows into the gap 4 and a Karman vortex is generated in the air flow.

Purpose of the invention The purpose of the present invention is to solve the above problem by preventing the generation of the Karman vortices, preventing the air flow itself from flowing into the gap, or reducing the flow rate. , to prevent wind noise while driving a car.

Structure, operation, and effects of the invention In order to achieve the above object, the present invention prevents the generation of Karman vortices or the passage of airflow in the gap formed between the seat and the mirror case, or reduces the flow rate of the airflow. A member for reducing air flow resistance is provided in the gap.

According to the above configuration, since the air flow resistance member is provided in the gap between the seat and the mirror case, even if the air flow enters the gap and generates wind noise while the car is running, the air flow To reliably prevent the generation of wind noise by preventing the generation of Karman vortices in the gap, or by reducing the amount of airflow entering the gap or by almost preventing it from entering the gap, by using a resistance member. I can do it.

Embodiments Hereinafter, the present invention will be specifically explained based on embodiments shown in FIGS. 2 to 5.

As shown in FIGS. 2 and 3, the door mirror mounting structure according to this embodiment is such that a mirror case 10 is rotatably supported by a support shaft 16 on an L-shaped seat 11 that is mounted on a door 21. The mirror case 10 is normally held at a predetermined position relative to the seat 11.

The seat portion 11 is composed of a vertically elongated door mounting portion 11a and a mirror case support portion 11b protruding laterally from the door mounting portion 11a. The door attachment portion 11a has one side surface attached to the outer side surface of the door, and the other side surface as a curved concave surface 11e facing the door side side surface of the mirror case 10. Further, as shown in FIG. 4, the mirror case support part 11b has an upwardly protruding cylindrical part 11d integrally formed in the center of the mirror case support surface 11c, and a cylindrical part 11d that protrudes upward. A spindle through hole 11f is provided. The mirror case support surface 11c around the cylindrical portion 11d is provided with convex portions for moderation that protrude upward at predetermined intervals. The curved concave surface 11e of the door attachment portion 11a of this seat portion 11, the mirror case support surface 11c, and the mirror case support portion 1
A raised layer is provided on each surface of the curved side surface 11g of 1b by electrostatic flocking.

On the other hand, the mirror case 10 and the L-shaped seat part 11 can form a substantially rectangular parallelepiped, and the curved concave surface 11 of the seat door attachment part 11a
The side surface on the door side opposite to e is a curved convex surface 10a, and the mirror case support part 1 of the seat part 11 is
The part to be attached to 1b is cut out. The curved convex surface 10a, the side surface 10b of the cutout portion, and the lower surface 10c of the mirror case 10 include:
A raised layer is provided in each case by electrostatic flocking.

The mirror case 10 has a screw 1 inside it.
The mirror support 15 attached by 9 and 19 rotatably supports the seat 11 . The mirror support 15 has a mirror 13 on top thereof.
The mirror 13 is disposed in a predetermined position in the mirror case 10 by supporting the mirror 13, and a recess 1 is recessed upward and into which the seat cylindrical portion 11d is rotatably fitted in a portion corresponding to the cutout portion of the mirror case 10 at the lower part thereof.
5a. A support shaft penetration hole 15b is provided in the center of the upper end surface of the recess 15a, and a moderation convex portion of the mirror case support surface 11c of the seat 11 is provided in the seat mounting surface 15c on the lower surface of the recess 15a. Correspondingly, a moderation recess is provided, and the convex portion fits into the moderation recess to hold the mirror case 10 in a predetermined position relative to the seat 11.

The support shaft 16 connecting the mirror case 10 and the seat 11 is made of a cylindrical member with a flange 16a formed on the lower surface, and when the spring 17 is fitted into the outer circumferential surface of the shaft 16, the support shaft 16 connects the mirror case 10 and the seat 11. It is inserted into the support shaft penetration hole 11f of the seat cylindrical portion 11d and the support shaft penetration hole 15b of the mirror support recess 15a, and its tip is held in the recess 15a by the stopper 18 to prevent it from coming out. ing. This spindle 1
When the mirror case 10 is attached to the seat part 11 by 6, a gap 14 at a constant interval is formed between both members so that the mirror case 10 can rotate relative to the seat part 11. In this gap 14,
An air flow resistance member 20 is formed by the raised layers on each side of both members forming the gap 14, and prevents air flow from entering the gap 14 while the vehicle is running, thereby reducing the amount of air flow. That's what I do.

Now, when a car with the door mirror of the above structure attached to the door is running, the air flow is
1 and the mirror case 10, the airflow resistance member 20 in the gap 14 prevents the generation of Karman vortices. prevent. Therefore, the generation of wind noise is completely prevented, and there is no wind noise while driving, and the driver does not suffer from harsh wind noise.

According to the above embodiment, the air flow resistance member 20 is
Since the gaps 14 are formed on each surface of the seat 11 and the mirror case 10 by electrostatic flocking, when the mirror case 10 is rotated with respect to the seat 11, the raised layers on each surface just come into contact with each other. Therefore, the rotation of the mirror case 10 is not hindered in any way. Further, since it is integrally provided with the seat portion 11 and the mirror case 10, the assembly workability is good.

Note that the present invention is not limited to this embodiment, and can be implemented in various other ways. for example,
In forming the air flow resistance member 20,
Electrostatic flocking may be applied to only one member of the seat portion 11 or the mirror case 10, and the gap 14
The air flow resistance member 20 may be provided not only on all the surfaces forming the windward side but also at least on the windward side surface.
Furthermore, the air flow resistance member 20 may be made of sponge, felt, or a soft synthetic resin such as rubber, and may be attached to the seat portion 11 as shown in FIG. 5, so that almost no air flow itself enters the gap 14. The generation of wind noise may be prevented by eliminating the wind noise or reducing its inflow amount.

[Brief explanation of drawings]

Figure 1 is a plan view of a conventional door mirror, Figures 2 and 3 are
The figures are a front view and a perspective view of a door mirror according to one embodiment of the present invention, FIG. 4 is a longitudinal sectional view showing the mounting portion of the door mirror according to the above embodiment, and FIG. 5 is a mounting of a door mirror according to another embodiment. FIG. 10... Mirror case, 11... Seat, 13...
... Mirror, 14 ... Gap, 20 ... Air flow resistance member.

Claims (1)

[Claims for Utility Model Registration] A mounting structure for an automobile door mirror comprising a mirror case rotatably supported on a seat attached to the door, A mounting structure for a door mirror for an automobile, characterized in that an air flow resistance member is provided in the gap to prevent the generation of vortices or the passage of air flow, or to reduce the flow rate of the air flow.