JP2514004Y2 - Structure of bearing support part of vehicle sun visor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a structure of a bearing support portion of a vehicle sun visor configured to hold a sun visor body in a retracted position along a ceiling surface of a vehicle compartment. is there.

[Prior Art] The structure of the bearing support portion of this type of vehicle sun visor includes
For example, the one disclosed in US Pat. No. 4,070,054 is known.

In this case, as shown in FIGS. 7 and 8, a locking member fitted in the notched opening 11 'of the bearing member 8'.
In 12 ', one spring member is folded in two at the upper end of the locking tubular portion 13', and a pair of locking legs 14 'are provided from the lower edge of the locking tubular portion 13' on both side surfaces of the bearing member 8 '. Be extended along.

Then, the hook-shaped locking piece 14b formed at the lower end of the other locking leg 14 'is engaged with the latching piece 14a formed at the lower end of the one locking leg 14', so that the bearing The locking member 12 'is fixed to the member 8'.

On both sides of the inner peripheral surface of the locking tubular portion 13 'of the locking member 12',
Locking surfaces 15 'are formed on both sides of the outer peripheral surface of the support shaft 1'and engage with the flat surfaces 2'. And the locking surface 1
The sun visor body is held at the storage position along the ceiling surface of the passenger compartment by the engaging action of the 5'and the flat surface 2 '.

[Problems to be Solved by the Invention] Incidentally, in the above-mentioned conventional device, the locking member 1
2'is a locking piece 14a and a locking piece 14b at the lower ends of both locking legs 14 '.
Since the and are in the engaged state and have a closed cross section, the locking cylinder portion 13 has a structure in which it is difficult to elastically expand.

Therefore, when the sun visor body is rotated about the support shaft 1'to the storage position along the vehicle interior ceiling surface and the light shielding position along the windshield surface, the locking tubular portion of the locking member 12 'is provided. The spring fatigue of the locking member 12 'is increased when 13' is pushed and expanded by the outer peripheral surface of the support shaft 1 ', and the locking tubular portion 13' is plastically deformed to the original state. However, the elasticity cannot be reduced, and there is a problem in durability.

In view of the above-mentioned conventional problems, an object of the present invention is to provide a structure in which the locking cylinder portion of the locking member is easily elastically deformed without complicating the structure, and to prevent plastic deformation of the locking cylinder portion. It is an object of the present invention to provide a structure of a bearing support portion of a vehicle sun visor capable of improving durability.

[Means for Solving the Problem] In order to achieve the above object, the structure of the bearing support portion of the vehicle sun visor according to the present invention is such that a support shaft is fitted to an upper portion of a bearing member incorporated in a sun visor body. A bearing tubular portion to be inserted is formed, and a fixed leg is formed at a lower portion of the bearing member, and the bearing member is fitted into a notch-shaped opening formed in the bearing tubular portion and the supporting shaft. And a pair of locking legs formed on the lower portion of the locking member, the locking member having an upper portion having a locking tubular portion to be inserted thereinto is locked to the fixed leg of the bearing member, and the inner peripheral surface of the locking tubular portion is Locking surfaces are formed on both sides, which engage with flat surfaces formed on both sides of the outer peripheral surface of the support shaft when the sun visor body is rotated around the support shaft to a storage position along the ceiling surface of the vehicle compartment. Further, the locking member is a spring plate material It is formed by being folded in two at the lower ends of the pair of locking legs, and the upper end of the locking tubular portion of the locking member is an open end, and moreover, when the locking tubular portion is elastically expanded. The upper ends of the pair of locking legs are coupled to each other so that the pair of locking legs are not expanded.

[Operation] In the bearing structure for a vehicle sun visor configured as described above, when the sun visor body is placed at the storage position along the ceiling surface of the vehicle compartment, both locking surfaces of the locking member and both flat surfaces of the support shaft are provided. The sun visor body is held in the retracted position by the engaging action with.

When the sun visor body is rotated from the retracted position to the light-shielding position along the windshield, both locking surfaces of the locking cylinder portion are elastically expanded by being pressed against the outer peripheral surface of the support shaft.

Since the upper end of the locking cylinder is an open end without being joined, the locking cylinder is elastically expanded smoothly and smoothly, and plastic deformation of the locking cylinder is prevented. .

Further, since the upper ends of the pair of locking legs of the locking member are coupled to each other to prevent expansion, when the locking cylinder is elastically expanded, together with the locking cylinder, Both locking legs are not expanded, and only the locking cylinder is elastically expanded with its lower end as a fulcrum, and a predetermined spring force can be applied to the locking cylinder without insufficiency. .

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 5 and 6, the L-shaped support shaft 1 for supporting the sun visor body 4 is attached to a part of the vehicle body above the windshield in the passenger compartment by the mounting member 3 at the tip of the vertical axis portion 1a. ing.

The sun visor body 4, which is mounted rotatably around the axis of the horizontal shaft portion 1b of the support shaft 1, has a cushion material 6 in which an annular bone frame 5 is built in along a peripheral edge portion, and an outer skin 7 covering the cushion material 6. It is composed mainly of and.

As shown in FIGS. 1 and 2, the bearing member 8 is formed by bending a metal plate such as an iron plate into two folds, and the horizontal shaft portion 1b of the support shaft 1 is fitted to the bent portion at the upper portion thereof. A bearing cylinder 9 to be inserted is formed, and both fixed legs 10 extending downward from both ends of the opening of the bearing cylinder 9 are fixed to the frame 5 by spot welding.

At a predetermined position of the bearing tubular portion 9 of the bearing member 8, a notch-shaped opening 11 for exposing a part of the horizontal shaft portion 1b is formed.
A locking member 12 is attached to the opening 11.

The locking member 12 is, as shown in FIGS. 1 to 4, a locking tubular portion 13 which is fitted into the opening 11 and into which the horizontal shaft portion 1b is fitted.
And a pair of front and rear locking legs 14 which are continuously formed at the lower end of the locking tubular portion 13 and are inserted and locked between the fixed legs 10 of the bearing member 8. . further,
The locking member 12 is formed by folding one spring plate member into two at the lower ends of both locking legs 14, and the upper end of the locking tubular portion 13 is an open end 13a.

Further, on both sides of the inner peripheral surface of the locking cylinder portion 13 of the locking member 12, when the sun visor body 4 is rotated around the horizontal shaft portion 1b to the storage position along the ceiling surface of the vehicle compartment, the horizontal shaft portion 1b is formed. Locking surfaces 15 are formed to engage with the flat surfaces 2 formed on both sides of the outer peripheral surface.

Further, upwardly inclined locking claws 16 are formed by cutting and raising at both ends of the locking member 12 below both locking legs 14 at a total of four positions. Then, by inserting both the locking legs 14 of the locking member 12 between both the fixed legs 10 of the bearing member 8, the locking legs
The respective locking claws 16 of 14 engage with the respective locking holes 17 of the fixed leg 10 formed corresponding to these locking claws 16, whereby the locking member 12 is placed at a predetermined position of the bearing member 8. It can be assembled.

Also, in this embodiment, both locking legs 14 of the locking member 12 are
The upper ends of the two are connected by rivets 18, and the expansion of both locking legs 14 is restrained. The horizontal axis of the spindle 1
At a predetermined position of 1b, as shown in FIG. 2, a retaining projection 19 which is coupled with an end face 20 of a notch formed in the bearing tubular portion 9 of the bearing member 8 to prevent the sun visor body 4 from retaining. Are formed.

This embodiment is constructed as described above. Therefore, when the sun visor body 4 is in a position along the ceiling surface of the vehicle compartment, the sun visor body 4 has
The sun visor body 4 is held in the retracted position by the engagement force between the flat surface 2 of the horizontal shaft portion 2 and the shaft 15.

When using the sun visor 4 as a sunshade, both locking surfaces 15
When the sun visor body 4 is rotated around the axis of the horizontal shaft portion 1a against the engaging force between the flat surface 2 and the flat surface 2, as shown in FIG. While being pressed by the outer peripheral surface of 1b, the locking cylinder portion 13 is elastically expanded.

Since the upper end of the locking cylinder portion 13 is an open end 13a without being joined, the locking cylinder portion 13 is elastically expanded smoothly and smoothly, and is prevented from being plastically deformed. It

Both locking surfaces 15 of the locking cylinder portion 13 and both flat surfaces 2 of the horizontal shaft portion 1b.
After disengagement with and the outer peripheral surface of the horizontal shaft portion 1b contacts both locking surfaces 15, the sun visor body 4 is rotated with a predetermined torque to a light shielding position along the windshield surface.

Also, in this embodiment, both locking legs 14 of the locking member 12 are
Since the upper end of the locking cylinder 13 is joined by the rivet 18, both locking legs 14 are not expanded together with the locking cylinder 13 when the locking cylinder 13 is elastically expanded. Therefore, only the locking cylinder portion 13 is elastically expanded with the lower end portion as a fulcrum, and a predetermined spring force can be applied to the locking cylinder portion 13 without insufficiency. Therefore, the sun visor body 4 is rotated from the light-shielding position to the retracted position, and both locking surfaces of the locking tubular portion 13 are rotated.
A good moderation is obtained when the flat shaft 2 of the horizontal shaft portion 1b is engaged with 15. Further, when the sun visor body 4 is in the retracted position, the runout and rattling around the horizontal shaft portion 1b of the sun visor 4 due to insufficient engagement force between the locking surface 15 and the flat surface 2 are positively prevented. it can.

In the above embodiment, the upper ends of both locking legs 14 of the locking member 12 are connected by the rivets 18, but the invention is not limited to this. For example, the upper ends of both locking legs 14 may be connected by bolts, screws or locking claws, or may be connected by spot welding.

[Effect of the Invention] As described above, according to the present invention, the locking member is
One spring member is formed by being folded in two at the lower ends of the pair of locking legs, and the upper end of the locking cylinder of the locking member is an open end, so that the structure is not complicated. The structure of the locking cylinder of the locking member can be easily elastically deformed, and the plastic deformation of the locking cylinder can be prevented to improve the durability.

Moreover, since the upper ends of the pair of locking legs of the locking member are coupled to each other to prevent the expansion, the locking cylinder is elastically expanded by the rotation operation of the sun visor body with respect to the support shaft. At this time, the pair of locking legs are not expanded, and only the locking cylinder is elastically expanded with its lower end as a fulcrum.
As a result, a predetermined spring force can be imparted to the locking cylinder portion without insufficiency, and the sun visor body is rotated from the light blocking position to the retracted position so that both locking surfaces of the locking cylinder portion and the support shaft are supported. A good moderation can be obtained when the flat surface is engaged.

Further, in the state where the sun visor body is in the retracted position, it is possible to positively prevent swinging or rattling around the spindle of the sun visor body due to insufficient engagement force between the locking surface and the flat surface.

[Brief description of drawings]

1 to 6 of the drawings show an embodiment of the present invention. FIG. 1 is an exploded perspective view of a bearing support portion of a vehicle sun visor, and FIG. 2 is a component of the bearing support portion. FIG. 3 is a sectional view showing a state in which the locking cylinder portion of the locking member is elastically expanded, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. FIG. 5 is a partially cutaway front view of the vehicle sun visor, and FIG. 6 is an explanatory view schematically showing a state in which the vehicle sun visor is mounted in the vehicle compartment. FIG. 7 is a front view showing a conventional bearing support portion, and FIG.
FIG. 8 is a sectional view taken along the line VIII-VIII of the figure. 1 ... Spindle 2 ... Flat surface 4 ... Sun visor body 8 ... Bearing member 9 ... Bearing cylinder 10 ... Fixed leg 11 ... Opening 12 ... Locking member 13 ... Locking cylinder 14 …… Locking legs 15 …… Locking surface

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroaki Yamao Inventor Hiroaki Yamao 1 Toyota Town, Aichi Prefecture, Toyota Motor Co., Ltd. (56) References (JP, Y1)

Claims (1)

(57) [Scope of utility model registration request] 1. A bearing member incorporated in a sun visor body is provided with a bearing tube portion into which a spindle is fitted and inserted, and a fixed leg is formed below the bearing member. Is a pair of locking members formed in the lower part of the locking member, the locking member having an upper part having a locking cylinder part fitted into the notched opening formed in the bearing cylinder part and into which the support shaft is fitted. In the leg, locked to the fixed leg of the bearing member,
Flat surfaces formed on both sides of the outer peripheral surface of the support shaft when the sun visor body is rotated around the support shaft to a storage position along the ceiling surface of the vehicle compartment on both sides of the inner peripheral surface of the locking cylinder. Locking surfaces that engage with each other are formed. Further, the locking member is formed by folding one spring plate member into two at the lower ends of the pair of locking legs, and locking the locking member. The upper end of the tubular portion is an open end, and moreover, the pair of locking legs are prevented from expanding when the locking tubular portion is elastically expanded. A structure of a bearing support portion of a vehicle sun visor, wherein upper ends thereof are coupled to each other.