JPS629134Y2 - - Google Patents

Description

[Detailed description of the invention] (Purpose of the invention) The present invention relates to a sun visor main support device for an automobile sun visor.The purpose of the invention is to simplify the structure for supporting the sun visor main body, and to To enable a visor main body to be freely tilted to a desired angle and to prevent the sun visor main body from sagging even when strong vibrations or the like are applied.

(Prior art) Automotive sun visors that block sunlight while riding have the function of allowing the main body of the sun visor to rotate freely within a certain angle range, and the function of stopping at a desired angle to prevent drooping. There is a need to.

Conventionally, there is one shown in Fig. 6 as one of the sun visor main support devices equipped with each of the above functions.
This is equipped with a slit-shaped groove 21 in the axial direction, and a pipe-shaped support 23 with a pair of clamping plates 22 sandwiching this groove 21, embedded in the sun visor main body 24, and attached to the ceiling of the automobile. The other end of the support shaft 26, one end of which is fixed to a fixed fixture 25, is inserted into the support body 23, and the pair of clamping plates 22 are tightened with screws 27, thereby attaching the support shaft 26 to the pipe-shaped support body 23. By supporting the sun visor main body 24.

However, with the sun visor main support device having the above structure, the tightening force of the screws 27 is so strong that the sun visor 24 cannot be rotated smoothly, or conversely, the tightening force is weak and the sun visor 24 may not rotate smoothly due to vibrations, etc. There was a problem with the visor body 24 hanging down.

(Structure of the invention) The present invention was made in view of the above-mentioned problems. A slit-shaped groove is provided in the axial direction and an annular groove is provided on the outer periphery, and a support shaft with a regular polygonal cross-section that supports the main body of the sun visor is inserted into the insertion hole provided in the cylindrical portion of the support body with a slight gap. The U-shaped spring is elastically loaded in the annular groove provided in the cylindrical part, and the support body and support shaft are both molded from synthetic resin. I will explain.

In FIGS. 1 to 5, a notch 2 is provided at the center of the upper end of a sun visor main body 1 in which a core material (not shown) is embedded. Support bodies 3 for supporting the sun visor main body 1 are embedded in both sides of the sun visor main body 1. This support body 3 is molded from synthetic resin such as vinyl chloride resin and polypropylene.
Cylindrical parts 4 provided at one end are embedded in the sun visor main body 1 so as to face each other. The cylindrical portion 4 of the support body 3 is provided with an insertion hole 5 having a regular dodecagonal cross-section, and a slit-shaped groove 6 that is open on both end faces in the axial direction.
Further, an annular groove 7 for resiliently loading a U-shaped spring 9, which will be described later, is provided on the outer periphery of the tip of the cylindrical portion 4 of the support body 3, and opposing portions of the annular groove 7 are parallel to each other. The U
The shape spring 9 is designed to be easily loaded.

The support shaft 8 is molded from synthetic resin in the same manner as the support body 3, has a regular dodecagonal cross-section, and is inserted through the insertion hole 5 provided in the cylindrical portion 4 of the support body 3 with a slight gap. It is sized so that it can be obtained.

The center part of this support shaft 8 is fixed to a fixture 10 that is fixed to the ceiling of the automobile, and both ends thereof are
It is inserted into an insertion hole 5 provided in the cylindrical portion 4 of the support 3 with a slight gap.

Further, as shown in FIGS. 2 and 3, a U-shaped spring 9 is elastically loaded in an annular groove 7 provided in the cylindrical portion 4 of the support body 3. Reference numeral 11 in the figure indicates a frame embedded inside the sun visor main body 1 to maintain its shape.

Note that the cross-sectional shapes of the insertion hole 5 and the support shaft 8 provided in the cylindrical portion 4 of the support body 3 are not limited to a regular dodecagon,
In short, any regular polygon is sufficient, from a regular octagon to a regular polygon.
Preferably a hexagonal shape. It is also possible to use a plurality of U-shaped springs 9, and the number and the magnitude of their elasticity are appropriately determined so as to facilitate the operation described below. Furthermore, as in this embodiment, the sun visor is not limited to a structure in which both ends of the support shaft 8 are inserted into the insertion hole 5 provided in the cylindrical portion 4 of the support body 3; The present invention can also be applied to a cantilever type sun visor that is inserted into the insertion hole 5 provided in the cylindrical portion 4 of the support body 3.

(effect of invention) Next, the operation of the present invention will be explained.

In FIGS. 1 to 5, the cross-sectional shapes of the support shaft 8 and the insertion hole 5 provided in the cylindrical portion 4 of the support body 3 are both regular polygons, and both ends of the support shaft 8 are connected to the support body 3.
The support shaft 8 and the support body 3 are inserted into the insertion hole 5 with a slight gap and a U-shaped spring 9 is elastically mounted on the outer periphery of the cylindrical portion 4 of the support body 3, so that the support shaft 8 and the support body 3 cannot rotate. , and the sun visor main body 1 is stopped at a predetermined position tilted or substantially horizontally or vertically.

Next, when the sun visor main body 1 is pushed forward or pulled backward, a predetermined rotational moment is applied to the support shaft 8, and this rotational moment causes
The cylindrical portion 4 of the synthetic resin support 3 is slightly elastically deformed (deformed so that the width of the slit-shaped groove 6 becomes slightly wider) against the elasticity of the U-shaped spring 9, and the support shaft 8 The engagement between the support body 3 and the sun visor main body 1 is released, and the sun visor main body 1 rotates in stages to a certain angle determined by the regular polygon that is the cross-sectional shape of the support shaft 8 and the insertion hole 5 of the support body 3. When the force applied to the sun visor main body 1 is released, the cylindrical portion 4 of the support body 3 elastically returns to its original shape due to the elasticity of the U-shaped spring 9 and its own elasticity, and the support shaft 8 and the support body 3 are separated. The sun visor main body 1 is engaged again in a non-rotatable manner and is stopped at the desired position without being able to hang down.

(Effects of the invention) In the present invention, an insertion hole 5 having a regular polygonal cross section is provided in the cylindrical portion 4 of the support body 3 embedded in the sun visor main body 1, and a slit-shaped groove 6 is provided in the cylindrical portion 4 with the axial center. an annular groove 7 is provided on the outer periphery,
A support shaft 8 having a regular polygonal cross section that supports the sun visor main body 1 is inserted into an insertion hole 5 provided in the cylindrical portion 4 of the support body 3 with a slight gap, and an annular groove 7 provided in the cylindrical portion 4 is inserted. A U-shaped spring 9 is loaded into the
Moreover, since both the support body 3 and the support shaft 8 are molded from synthetic resin, the sun visor main body 1
The inclination angle can be freely adjusted by rotating smoothly in stages to a certain angle, and it can be used not only during normal use but also when strong vibrations or impact force is applied to the car. The visor main body 1 has an excellent effect of not hanging down from a desired position.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a sun visor embodying the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is an enlarged sectional view taken along line XX in Fig. 2, and Fig. 4 The diagram is
Figure 2 is an enlarged sectional view taken along line Y-Y in Figure 2, Figure 5 is a schematic side view of a sun visor according to the present invention attached to a car, and Figure 6 is a perspective view of a conventional sun visor main support device. be. Explanation of symbols of main parts, 1... sun visor main body, 3... support body, 4... cylindrical part of support body, 5...
...Insertion hole, 6... Groove, 7... Annular groove, 8... Support shaft, 9... U-shaped spring.

Claims (1)

[Scope of utility model registration request] Support body 3 embedded in sun visor main body 1
A cylindrical portion 4 is provided with an insertion hole 5 having a regular polygonal cross-section, a slit-shaped groove 6 is provided in the axial direction of the cylindrical portion 4, and an annular groove 7 is provided on the outer periphery, and the cross-sectional shape supports the sun visor main body 1. Regular polygonal support shaft 8
is inserted into the insertion hole 5 provided in the cylindrical portion 4 of the support body 3 with a slight gap, and a U-shaped spring 9 is elastically loaded in the annular groove 7 provided in the cylindrical portion 4, and the support body 3 and support shaft 8 are both molded from synthetic resin.