JPS6113370Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a sun visor for a vehicle, in which the vertical shaft part of an L-shaped mounting shaft having a horizontal shaft part to which the sun visor body is attached is fixed at a predetermined position on the vehicle body by means of a shaft support. This relates to a device that is pivotally supported on.

The purpose of this invention is to be able to easily connect the vertical shaft portion of the mounting shaft and the shaft support, and to allow rotation between the rotation hole formed in the shaft support of the shaft support and the outer periphery of the vertical shaft portion. It is an object of the present invention to provide a shaft support device that can apply a predetermined rotational friction force to a moving part and smoothly rotate a mounting shaft with a predetermined torque with respect to a shaft support body along the axis of its vertical shaft portion.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a sun visor, which is composed of a sun visor body 2 and a mounting shaft 7.

The sun visor main body 2 having an oblong rectangular shape is formed by covering the entire surface of a core body 3 made of foamed synthetic resin or the like with an outer skin 4 made of a synthetic resin sheet. Furthermore, a bone frame 5 made of metal wire is built in along the four peripheral edges of the core body 3, and a bearing 6 is built in at the upper right corner of the core body 3, fixed to the bone frame 5 in FIG. has been done.

The mounting shaft 7 of the sun visor 1 is formed by bending a round bar into an L shape, and its horizontal shaft portion 7A is rotatably fitted into the bearing 6 of the sun visor body 2. . An annular locking groove 8 is recessed in the outer peripheral surface of the tip of the vertical shaft portion 7B of the mounting shaft 7, and the tip of the vertical shaft portion 7B is formed in a tapered shape to fit into the rotation hole 11 of the bearing body 9. It is designed to be easy to insert.

The shaft support body 9 includes a flange 10 that is attached to a predetermined position on the vehicle body, and a cylindrical shaft support 9A, and the flange 10 and the shaft support 9A are integrally molded from synthetic resin. The flange 10 has left and right mounting holes 10A and 10A for screws to the vehicle body.
are installed through each. A rotation hole 1 having approximately the same diameter as the outer diameter of the mounting shaft 7 is provided in the center of the shaft support 9A.
1 is provided through the rotation hole 11, and an annular locking protrusion 12 that can be engaged with the locking groove 8 of the mounting shaft 7 is provided on the inner peripheral wall surface of the tip (upper end in the figure) of the rotation hole 11. ing. The shaft support 9A has multiple threads (four threads in FIG. 3) so that the effective hole diameter of the rotation hole 11 can be changed.
The slit-shaped grooves 13 to 13 are the shaft support 9A.
are formed radially from the tip to the middle part, and the inner diameter of the rotation hole 11 is formed to be expandable and contractable by these grooves 13 to 13. Further, an annular retaining groove 14 is formed on the outer peripheral surface of the shaft support 9A.
is recessed, and a shaft support 9 is provided in this holding groove 14.
A tightening ring 15 is fitted therein to apply a predetermined rotational friction force to the rotational portion between the rotation hole 11 of the coaxial support 9A and the vertical shaft portion 7B by biasing A in the direction of elastically contracting. This tightening ring 15, as shown in FIG.
It is made of a flat strip-shaped spring steel plate, and is bent into a continuous uneven shape along the holding groove 14 of the shaft support 9A to form a closed shape that elastically expands and contracts. The tightening ring 15 is formed such that its inner diameter in a free state is smaller than the outer diameter of the holding groove 14 by a predetermined amount, and the shaft support 9
It is tightened and energized almost evenly with no excess or deficiency from the outer circumference of the shaft support 9A.

In the pivot device configured as described above,
By inserting the vertical shaft portion 7B of the mounting shaft 7 of the sun visor 1 in a press-fit manner through the lower end opening of the rotation hole 11 formed in the shaft support 9A of the shaft support body 9, the vertical shaft portion 7B
By engaging the locking groove 8 and the locking protrusion 12 of the shaft support 9A, the mounting shaft 7 can be rotatably connected to the shaft support 9. That is, the shaft support 9A
When the vertical shaft portion 7B of the mounting shaft 7 is press-fitted into the rotation hole 11, the rotation hole 11 is expanded smoothly by the slots 13 to 13 of the shaft support 9A. When the mounting shaft 7 is press-fitted by a predetermined amount, the rotation hole 11 is reduced by the urging force of the tightening ring 15.
The locking protrusion 12 of the shaft support 9A and the locking groove 8 of the vertical shaft portion 7B are engaged to prevent the mounting shaft 7 from coming off, and the shaft support 9A and the vertical shaft portion 7B can be rotated by friction. Pivotally supported. At this time, the urging force by the tightening ring 15 acts almost equally along the bottom surface of the holding groove 14 of the shaft support 9A, so that the engagement protrusion 12 of the shaft support 9A and the locking groove of the vertical shaft portion 7B 8 can be firmly engaged with each other, and the sun visor main body 2 can be smoothly rotated with a predetermined torque in the direction around the axis of the vertical shaft portion 7B with respect to the shaft support 9A. Furthermore, since the mounting member 9 is made of synthetic resin, its rotation becomes even smoother.

That is, this invention is a device in which the vertical shaft portion 7B of the L-shaped mounting shaft 7, which has the horizontal shaft portion 7A to which the sun visor body 2 is attached, is pivotally supported at a predetermined position on the vehicle body by the shaft support 9. Therefore, the shaft support 9 is
It includes a flange 10 that is attached to the vehicle body, and a cylindrical shaft support 9A having a rotation hole 11 in the center into which the vertical shaft portion 7B is inserted, and the flange 10 and the shaft support 9A are made of synthetic resin. Furthermore, a plurality of slit-like grooves 13 to 13 are radially formed in the shaft support 9A so that the effective diameter of the rotation hole 11 can be changed, and the rotation of the shaft support 9A is A locking protrusion 12 that engages with an annular locking groove 8 recessed on the outer circumference of the tip of the vertical shaft portion 7B is provided on the inner circumferential surface of the moving hole 11, while a locking protrusion 12 that engages with an annular locking groove 8 recessed on the outer circumference of the tip of the vertical shaft portion 7B is provided on the inner peripheral surface of the shaft support 9A. has an annular retaining groove 14
is recessed in the holding groove 14, and the shaft support 9A is provided in the holding groove 14.
A tightening ring 15 is fitted in which applies a predetermined rotational friction force to the rotating portion between the rotation hole 11 of the coaxial support 9A and the vertical shaft portion 7B by biasing it in the direction of elastically contracting the shaft. This is a sun visor pivoting device characterized by being formed into a closed annular shape that has continuous irregularities along the holding groove 14 of the branch 9A and expands and contracts elastically.

Therefore, by press-fitting the vertical shaft portion 7B of the mounting shaft 7 into the rotation hole 11 formed in the shaft support 9A of the shaft support 9, the locking protrusion of the shaft support 9A is secured. The part 12 and the locking groove 8 of the vertical shaft part 7B are engaged,
The mounting shaft 7 can be easily and quickly connected to the shaft support 9.

Furthermore, the pivot hole 11 is provided in the pivot support 9A.
A plurality of slit-like grooves 13 to 13 are formed radially so that the effective hole diameter of the shaft support 9A can be changed, while an annular retaining groove 14 recessed in the outer periphery of the shaft support 9A Due to the structure in which the clamping ring 15 is fitted in which urges the clamping ring 15 in the direction of elastically contracting the clamping ring 15, it is possible to prevent the clamping ring 15 from shifting.
By applying a predetermined rotational friction force to the rotating portion between the outer periphery of the mounting shaft 7 and the outer periphery of the mounting shaft 7, the mounting shaft 7 can be smoothly rotated with a predetermined torque around the axis of the vertical shaft portion 7B relative to the shaft support 9A. Furthermore, since the shaft support body 9 is made of synthetic resin, it is possible to prevent rusting, seizure, etc. from occurring in the above-mentioned rotating parts.

In particular, according to this invention, the plurality of grooves 13 to 13 formed on the shaft support 9A are radial, and are prevented from slipping by the annular retaining groove 14 recessed in the outer periphery of the shaft support 9A. Tightening ring 1 to be fitted
5 is formed into a closed annular shape that has continuous unevenness along the retaining groove 14 and expands and expands elastically, so when the vertical shaft portion 7B is press-fitted into the rotation hole 11 of the shaft support 9A, the shaft support 9A Since it expands smoothly and effortlessly, damage to the shaft support 9A due to press-fitting of the vertical shaft portion 7B can be prevented. Moreover, the shaft support 9A
At the position where the locking protrusion 12 and the locking groove 8 of the vertical shaft portion 7 face each other, the shaft support 9A is favorably reduced by the urging force of the tightening ring 15, and the urging force of the tightening ring 15 is acts almost uniformly along the bottom peripheral surface of the holding groove 14 of the shaft support 9A, so that a predetermined rotational friction is created in the rotating portion between the rotation hole 11 of the shaft support 9A and the outer periphery of the vertical shaft portion 7B. This has the effect that force can be applied favorably and the vertical shaft portion can rotate more smoothly with respect to the shaft support 9A.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway front view of the sun visor, and FIG.
The figure is a side sectional view showing a state of connection between the mounting member and the mounting rotation shaft of the sun visor, FIG. 3 is a perspective view showing the mounting member, and FIG. 4 is a perspective view showing a tightening ring. 1...Sun visor, 2...Sun visor body, 7...Mounting shaft, 7A...horizontal shaft portion, 7B...vertical shaft portion, 8...locking groove, 9...shaft support, 9A... Pivot support, 10...flange, 11...rotation groove, 12
... Locking protrusion, 13 ... Division groove, 14 ... Holding groove, 15 ... Tightening ring.

Claims (1)

[Scope of utility model registration request] Horizontal shaft portion 7 to which the sun visor body 2 is attached
This is a device for pivotally supporting a vertical shaft portion 7B of an L-shaped mounting shaft 7 having an A shape at a predetermined position on a vehicle body by a shaft support 9, and the shaft support 9 has a flange 10 attached to the vehicle body. and a cylindrical shaft support 9A having a rotation hole 11 in the center into which the vertical shaft portion 7B is inserted, and the flange 10 and the shaft support 9A are integrally molded from synthetic resin. The shaft support 9A has a plurality of slit-like grooves 1 so that the effective diameter of the rotation hole 11 can be changed.
3 to 13 are formed radially, and the inner peripheral surface of the rotation hole 11 of the shaft support 9A has a locking protrusion that engages with an annular locking groove 8 recessed in the outer periphery of the tip of the vertical shaft portion 7B. 12, and an annular retaining groove 14 is recessed in the outer periphery of the shaft support 9A.
4 includes a tightening ring 1 which biases the shaft support 9A in the direction of elastic contraction and applies a predetermined rotational friction force to the rotation portion between the rotation hole 11 of the coaxial support 9A and the vertical shaft portion 7B.
5 is fitted, and this tightening ring 15 is attached to the shaft support 9
A shaft support device for a sun visor, characterized in that it is formed into a closed annular shape that has continuous unevenness along the holding groove 14 of A and expands and contracts elastically.