JPH0247375B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a visor mounting structure for a door mirror for a vehicle.

<Prior art> In door mirrors for automobiles, etc., the visor supporting the mirror is rotatably attached to a stay attached to the door.When parking in a garage, etc., the visor protruding sideways A so-called foldable type is known that can be held in a tilted position that is almost completely tilted so as not to hit any objects. This foldable door mirror generally has a cantilevered structure in which an arm is provided extending approximately horizontally from the bottom of the stay, and the visor is supported by a rotating shaft provided upward on the arm.

<Problems to be Solved by the Invention> The cantilever structure described above is disadvantageous in terms of strength, so in order to compensate for this, the arm part and rotating shaft part tend to be large, and the projection of the visor is The mirror area is smaller by the space of the rotating shaft compared to the area, which causes problems such as poor area efficiency and increased running resistance.Furthermore, the rotating shaft and moderation mechanism become complicated, resulting in high costs. It was hot too.

The present invention solves this problem by providing a folding door mirror that has a simple structure, high mirror area efficiency, is easy to assemble, is securely held without being easily removed once installed, and is low-cost. It was made for the purpose of providing.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a folding door mirror that is provided with a moderation mechanism that semi-fixes the visor in an upright position and a tilted position. An arm is provided protruding from each side to form a substantially U-shaped support portion into which the base of the visor is inserted, and the axis of rotation is aligned with the upper and lower joint surfaces of the base of the visor and is extended outward. A U-shaped notch hole is provided that protrudes integrally toward the rotating shaft and surrounds these rotating shafts, and the rotating shaft is supported by a mounting piece that is flexible in the vertical direction. A shaft hole is formed into which the shaft is inserted, and the visor is rotatably attached to the stay by inserting the rotating shaft into each shaft hole.
Further, a moderation plate made of an elastic material is fixed to the base of the outer periphery of the rotating shaft and interposed on the joint surface of the outer periphery of the insertion portion between at least one of the upper and lower rotating shafts and the shaft hole,
A moderation projection is provided on the moderation plate, and a moderation recess is provided on the joining surface of the opposing arms, and by combining these moderation recesses and the moderation projection, a moderation mechanism is constructed that semi-fixes the visor at a predetermined position. It is characterized by

<Function> In the present invention, as described above, the base of the visor is inserted into the approximately U-shaped support portion formed on the stay, and the visor is rotatably supported by the upper and lower joint surfaces. The visor mounting structure is simplified,
Furthermore, the moderation function is exerted by the moderation plate interposed between the joint surfaces, and the visor is semi-fixed in the upright position and the tilted position. Furthermore, since the rotating shaft supported by vertically flexible mounting pieces is inserted into the shaft hole formed in the arm of the stay, it can be easily inserted by bending the mounting piece. Afterwards, the mounting piece returns to its original state, so once it is inserted, it will not easily come off, allowing for reliable visor installation.

<Example> The present invention will be specifically described below with reference to illustrated examples.

In the figure, 1 is a stay, 2 is a visor, 3 is a mirror, and 4 is a part of the door. The stay 1 is attached to the outer surface of the door 4 with screws 5, and arms 6 are provided that project almost horizontally from the upper and lower parts of the outer surface of the stay 1, forming a substantially U-shaped support portion 7. A base portion 8 of the visor 2 is inserted into the support portion 7 and is rotatably attached.

The upper and lower joint surfaces on which the support portion 7 and the base portion 8 are combined have the following structure. That is, by providing a U-shaped notch hole 11 in the base 8, a flexible mounting piece 12 is formed.
A short rotating shaft 13 is protruded from the outer surface of this mounting piece 12, and correspondingly, a shaft hole 14 into which the rotating shaft 13 is inserted is provided on the inner surface of the arm 6, and these upper and lower rotating shafts are connected to each other. 13 and the shaft hole 14 are provided so that their axes coincide with each other.
To attach the visor 2 to the stay 1, use the mounting piece 12.
Push the base 8 into the support part 7 using the deflection of
This is done by inserting the rotating shaft 13 into the shaft hole 14, and since the mounting piece 12 returns to its original shape, the visor 2 cannot be easily removed once it is mounted. In addition, in order to facilitate this installation operation, the rotating shaft 1
3 is formed with a guide surface 13a that is inclined in the insertion direction. Further, the visor 2 is made, for example, by molding of elastic synthetic resin, and the stay 1 is made, for example, by die-casting of zinc.

A moderation mechanism 17 is provided on one of the joint surfaces of the support portion 7 and the base portion 8, that is, the lower joint surface in this embodiment. Reference numeral 18 denotes a substantially disk-shaped moderation plate made of a spring plate, and as shown in FIG. inserted between. A shaft insertion hole 21 is provided in the center of the moderation plate 18, and two moderation pieces 23 are formed by providing an arc-shaped notch 22 on the outer periphery.
A V-shaped moderation protrusion 24 is provided on each side. Correspondingly, a recess 25 into which the moderation plate 18 fits is formed in the arm 6 described below, and a moderation protrusion 2
V-shaped moderation recesses 26a and 26b, which are engaged with the V-shaped moderation recesses 26a and 26b, are provided on the circumference. The moderation protrusion 24 and the moderation recesses 26a, 26b are arranged so that the moderation protrusion 24 and the moderation recesses 26a and 26b are connected to each other when the visor 2 is in an upright position, as shown by solid lines in FIG.
The protrusion 24 and the recess 26b are arranged so as to engage with each other when the protrusion 24 and the recess 26b are tilted approximately 90 degrees as shown by the chain line.

The mirror 3 is held by a mirror holder 29, and the mirror holder 29 is tiltably supported by a support member 30 fixed to the visor 2 via a ball bearing 31. A cover 32 is provided at the end of the base 8 of the visor 2, and its outer surface is a cylindrical convex surface whose axis coincides with the axis of the rotating shaft 13.

The present embodiment is constructed as described above, and when the visor 2 is in use in the upright position, the moderation protrusion 24 engages with the moderation recess 26a, and the visor 2 is semi-fixed in the upright position. When an external force exceeding a certain limit is applied to the visor 2, the visor 2 tilts, the moderation projection 24 disengages from the moderation recess 26a, and stops at that position.

On the other hand, when the visor 2 is tilted approximately 90 degrees from the upright position, the moderation protrusion 24 engages with the moderation recess 26b, and the visor 2 is semi-fixed in the tilted position shown by the chain line in FIG. The visor 2 is held in the tilted position until a large force is applied to make the visor 2 stand up.

<Effects of the Invention> As is clear from the above examples, the present invention has the following effects:
The base of the visor is inserted into the almost U-shaped support part of the stay, and the visor is rotatably supported in two places, upper and lower, and the visor is semi-fixed at a predetermined position by a moderation plate interposed on the joint surface. Compared to a structure in which the visor is supported in a cantilevered structure, the structure of the support part is not only simplified, but also the strength is greatly improved, and the structure of the moderation mechanism is also simplified. Therefore, it is possible to downsize the support portion, increase the ratio of the mirror area to the projected area of the visor, and reduce manufacturing costs.
It is possible to obtain a door mirror at a low cost that has a small overall size relative to the mirror area, low running resistance, and a clean appearance in terms of design.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention;
2 is a sectional view taken along the line A--A in FIG. 1, and FIG. 3 is an exploded perspective view of the main parts. 1... Stay, 2... Visor, 3... Mirror, 4... Door, 6... Arm, 7... Support part,
8... Base, 12... Mounting piece, 13... Rotating shaft,
14... Shaft hole, 17... Moderation mechanism, 18... Moderation plate, 24... Moderation projection, 26a, 26b... Moderation recess.

Claims (1)

[Scope of Claims] 1. A moderation mechanism is provided in which a visor 2 that supports a mirror 3 in a tiltable manner is rotatably attached to a stay 1 attached to a door 4 of a vehicle, and the visor 2 is semi-fixed in an upright position and a tilted position. In the foldable door mirror provided, arms 6, 6 are respectively protruded from the upper and lower outer surfaces of the stay 1 to form a substantially U-shaped support portion 7 into which the base portion 8 of the visor 2 is inserted, and Rotating shafts 13 are integrally provided on the upper and lower joint surfaces of the base 8 of the visor 2 with their axes aligned and protruding outward, and a U-shaped notch hole 11 surrounding these rotating shafts 13 is provided. The shaft hole 14 is formed in the arm 6 of the stay 1 into which the rotary shaft 13 is inserted, and the rotary shaft 13 is supported by the vertically flexible mounting piece 12. The visor 2 is rotatably attached to the stay 1 by inserting the visor 2 into the stay 1, and furthermore, the visor 2 is rotatably attached to the stay 1 by inserting the visor 2 into the stay 1, and the connecting surface of the outer periphery of the insertion portion between at least one of the upper and lower rotating shafts 13 and the shaft hole 14 is made of an elastic material. A moderation plate 18 is fixed and interposed on the base 8 on the outer periphery of the rotating shaft, and a moderation protrusion 24 is provided on the moderation plate 18, while a moderation recess 26 is provided on the joint surface of the opposing arm 6.
A, 26b are provided, and these moderation recesses and moderation protrusions are combined to constitute a moderation mechanism that semi-fixes the visor 2 at a predetermined position.