JP2944397B2 - Visor reinforcement structure of car door mirror - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for reinforcing a visor, which is a casing of a mirror body in an automobile door mirror.

[0002]

2. Description of the Related Art A schematic structure of a conventional automobile door mirror is shown in FIGS. This door mirror is a retractable door mirror. FIG. 3 is a front view in a state where a mirror main body and its angle adjusting mechanism are removed, and FIG. 4 is a bottom view. In a conventional door mirror, generally, a fulcrum shaft 11a of a stay 11 extending up and down substantially along a side window surface.
The mounting member 12 is rotatably mounted on the stay 11 by fitting with a bearing portion 12a formed on the mounting member 12, and the visor 13 is fixed to the mounting member 12. Generally, the visor 13 is formed of a synthetic resin and is liable to be twisted when subjected to external force or wind pressure. Therefore, in order to prevent the visor 13 from being twisted even when an external force is applied, the visor 13 is generally made of metal. With respect to the mounting member 12, two upper and lower portions near the outer end,
It is fixed to the mounting bosses 13a to 13d formed at a total of four locations, two upper and lower locations near the rotation axis, with screws (not shown). In this configuration, as shown in FIG.
The angle adjusting mechanism 15 is fixed to the mounting portion 12b of the mounting member 12.

[0003]

In this conventional structure,
Since the mounting member 12 is a relatively large member extending from the fulcrum shaft 11a of the stay 11 to the mounting position near the outer end of the visor 13, the mounting member 12 is very heavy. On the other hand, it is conceivable to reduce the weight of the mounting member by, for example, forming the mounting member in a small size only around the fulcrum axis. In this case, the visor described above has a simple structure as possible without using another reinforcing member. It is desired to eliminate the problem of torsion.

[0004] Therefore, a technical problem to be solved by the present invention is to prevent the visor from being twisted with a simple structure when the mounting member is reduced in size and weight.

[0005]

According to the present invention, there is provided a mirror body casing having a visor having a corner portion above and below an outer end portion, and a visor fixed to a vehicle body. A visor reinforcement structure for an automobile door mirror including a stay, a fulcrum shaft provided on the stay, and an attachment member rotatably mounted on the fulcrum shaft and fixed to the visor, wherein a rotation of the inner surface of the visor is provided. Mounting bosses for fixing the mounting member with the fixing means are formed at two places vertically above and below the center, and ribs for reinforcing the visor extend from the upper mounting boss to the outer lower corner. , And only the rib extending from the lower mounting boss to the outer upper corner portion is provided.

[0006]

In the above construction, since the mounting member is a rigid body, the two mounting bosses to which the mounting member is fixed can be regarded as a part of the rigid body, and twisting hardly occurs in this portion. . The visor is reinforced with only two ribs extending from the respective mounting bosses to the outer corners in an X-shape. That is, as the visor reinforcing rib, a rib is formed from the upper mounting boss to the outer lower corner, a rib is formed from the lower mounting boss to the outer upper corner, and both ribs intersect and diagonally cross each other. Since the visor is extended, it is possible to prevent the visor from being twisted at a portion outside the vehicle body with respect to the mounting boss when an external force is applied or a wind pressure is applied. Therefore, twisting of the visor can be entirely prevented.

As described above, according to the above structure, the mounting member can be formed small and light only around the fulcrum shaft, and as a visor reinforcing rib, from each mounting boss for the mounting member to the outer upper and lower corners. The visor can be effectively prevented from being twisted with a simple structure in which only the obliquely extending rib is formed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automobile door mirror to which a reinforcing structure according to one embodiment of the present invention shown in FIGS. 1 and 2 is applied will be described in detail below.

FIG. 1 is a front view showing a schematic configuration of the door mirror, FIG. 2 is a bottom view of a visor, and FIG. 1 shows a state where a mirror main body and its angle adjusting mechanism are removed. As shown in the drawing, the mounting member 2 has a structure in which mounting portions 2b and 2c are formed integrally with a bearing portion 2a rotatably fitted to a fulcrum shaft 1a formed on a stay 1 fixed to a vehicle body. is there. The mounting portion 2b has mounting holes 2d and 2e at two locations located above and below each other near the center of rotation of the visor 3. The mounting portion 2c is provided with a lower surface opening 3a of the visor 3.
Has a mounting hole 2f at one position.

On the other hand, the visor 3 is provided above and below the outer end.
It has three corner portions 3h and 3i. In addition, the visor 3 has mounting bosses 3b and 3c having screw holes formed therein and mounting portions 3d at positions corresponding to the mounting holes 2d, 2e and 2f of the mounting member 2, respectively. The visor 3 is attached to the attachment member 2 at these three places by screws (not shown) (fixing means). Further, on the visor 3, mounting bosses 3e for mounting the angle adjusting mechanism 5 of the mirror body 4 are provided with mounting bosses 3b and 3c for the mounting member 2.
The mounting boss 3
An angle adjusting mechanism 5 for adjusting the angle of the mirror main body 4 is directly attached to the screw hole of e with screws (fixing means).

Also, a lower mounting boss 3c for the mounting member 2 is provided.
Ribs 3f and 3g are formed between the upper corner portion 3h and the upper mounting boss 3b for the mounting member 2 and the lower corner portion 3i, respectively, and the ribs 3f and 3g intersect with each other. It has a structure.

In this embodiment, since the mounting member 2 is a rigid body, the two mounting bosses 3b and 3c to which the mounting member 2 is fixed can be regarded as a part of the rigid body. Outside the mounting bosses 3b, 3c, twisting is prevented by two ribs 3f, 3g extending obliquely. Therefore, the entire visor 3 is prevented from being twisted.

As described above, in the above embodiment, the mounting member 2
Can be reduced in size to reduce the weight of the door mirror as a whole, and at the same time, by forming the ribs 3f, 3g extending obliquely from the mounting bosses 3b, 3c for the mounting member 2 to the outer end, a simple structure is obtained The twist of the visor 3 can be effectively prevented.

In the above embodiment, only two ribs 3f and 3g extending from the mounting bosses 3b and 3c for the mounting member 2 in the direction opposite to the vehicle body are formed. As shown by the imaginary line, the inner surface of the visor 3 has a rib 3j extending obliquely downward from the upper mounting boss 3b toward the vehicle body and a rib 3j extending from the lower mounting boss 3c toward the vehicle body. And a rib 3k extending obliquely upward may be formed as necessary. Then, the twist of the visor 3 can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic configuration of a door mirror to which a reinforcing structure according to an embodiment of the present invention is applied.

FIG. 2 is a bottom view of the door mirror of FIG.

FIG. 3 is a front view showing a schematic configuration of a conventional door mirror.

FIG. 4 is a bottom view of the door mirror of FIG. 3;

[Explanation of symbols]

 Reference Signs List 1 stay 1a fulcrum shaft 2 mounting member 2a bearing 2b, 2c mounting 2d, 2e, 2f mounting hole 3 visor 3a opening 3b, 3c mounting boss 3d mounting 3e mounting boss 3f, 3g rib 3h, 3i corner 3j, 3k Rib 4 mirror body 5 angle adjustment mechanism

Claims (1)

(57) [Claims] A visor (3) which is a casing of a mirror body (4) and has corner portions (3h, 3i) above and below an outer end portion.
A stay (1) fixed to the vehicle body, a fulcrum shaft (1a) provided on the stay (1), and rotatably mounted on the fulcrum shaft (1a) and fixed to the visor (3). A reinforcing structure for a visor (3) in an automobile door mirror including an attachment member (2), wherein on an inner surface of the visor (3), the visor (3) is positioned vertically above and near a rotation center of the visor (3). The above two mounting members
Mounting bosses (3b, 3c) for fixing (2) with fixing means are formed, and ribs (3f, 3g) for reinforcing the visor (3) are formed from the upper mounting boss (3b). A visor reinforcement for an automobile door mirror, characterized in that only a rib (3g) extending to the outer lower corner (3i) and a rib (3f) extending from the lower mounting boss (3c) to the outer upper corner (3h) are provided. Construction.