JP2535188B2 - Sun visor mounting structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a mounting structure of a sun visor provided on a driver's seat and a passenger's seat side of an automobile.

"Prior Art" As a conventional mounting structure for this type of sun visor, for example, there is one disclosed in Japanese Patent Publication No. 61-17686.

In the conventional mounting structure, a bearing member made of synthetic resin is provided inside the sun visor body, and the bearing member and a mounting shaft provided on the vehicle body are fitted to rotate the sun visor body to a predetermined position on the vehicle body. Specifically, as shown in FIG. 3, a fitting hole 3 for fitting the mounting shaft 6 is formed in a bearing member 2 provided in the sun visor body 1, and the fitting hole 3 is formed. 3 is formed with a cutout portion 4 which is in cross communication with the cutout portion 4, and a pair of ratchet pawls 5a is formed in the cutout portion 4.
While mounting the inverted U-shaped thin leaf spring material 5 having the above, the ratchet teeth 7 that mesh with the ratchet pawls 5a are formed on the outer peripheral surface of the tip of the mounting shaft 6, and the tip of the mounting shaft 6 is a bearing. At the same time as fitting into the fitting hole 3 of the member 2,
The ratchet teeth 7 of the shaft 6 are configured to engage with the ratchet pawls 5a of the thin leaf spring material 5.

Therefore, in such a conventional mounting structure, when the sun visor body 1 is rotated, the ratchet pawls 5a of the inverted U-shaped thin leaf spring material 5 are expanded and are aligned with the ratchet teeth 7 of the shaft 6. The sun visor body 1 is allowed to rotate to a desired angle by engaging with each pitch, and the ratchet teeth 7
The sun visor body 1 depends on the occlusal state of the ratchet claw 5a and the ratchet claw 5a.
Is held at the desired rotation position.

“Problems to be Solved by the Invention” In recent years, attachment of accessories such as mirrors and lamps to the sun visor body 1 has become popular, so the weight of the sun visor body 1 itself depends on these accessories. It tends to grow naturally.

However, in the conventional mounting structure, as described above, the ratchet teeth 7 of the shaft 6 and the ratchet pawl 5a of the thin leaf spring material 5 are used.
Depending on the occlusal state, the sun visor body 1 is held at a desired position. Therefore, when the above-mentioned heavy sun visor body 1 is to be attached, the occlusal resistance of the ratchet teeth 7 and the ratchet claw 5a is not sufficient. , The sun visor body 1
Has a big problem that it cannot be surely held at a desired position.

Therefore, in the conventional mounting structure, it is undeniable that the heavy sun visor body 1 inadvertently rotates due to its own weight due to traveling vibration of the automobile or the like.

"Means for Solving Problems" The present invention has been developed in order to effectively solve the problems of the conventional mounting structure. The bearing member in the sun visor body and the mounting shaft are The bearing member has a bracket fixed to the inside of the sun visor body, and a first bearing rotatably supported by the bracket, based on a mounting structure in which the sun visor body is rotatably mounted on the vehicle body.
The first rotating body is provided with a rotating body and a second rotating body, and the first rotating body has teeth formed on the entire outer peripheral surface thereof, and has a fitting hole formed therein for fitting the distal end portion of the mounting shaft. Includes a braking spring member that forms teeth that mesh with the teeth of the first rotating body on the entire outer peripheral surface and that applies a rotational braking force to the second rotating body between the second rotating body and the bracket. The configuration to be installed was adopted.

"Operation" Therefore, in the present invention, the teeth of the first rotating body and the teeth of the second rotating body of the bearing member are engaged with each other, and the rotation braking force by the braking spring member is always applied to the second rotating body. Since it has been
Even if a heavy sun visor body is attached, the sun visor body can be reliably held at a desired position by the rotational braking force.

[Examples] Hereinafter, the present invention will be described in detail with reference to an illustrated example. Also, in the mounting structure of the sun visor according to the example, the bearing member and the mounting shaft in the sun visor body are fitted to each other to form the sun visor body. It is premised that the vehicle is rotatably attached to the vehicle body, and is characterized by the following configuration.

That is, in this embodiment, as shown in FIGS. 1 and 2A and 2B, the bearing member 13 provided in the sun visor body 11 is provided.
Is a substantially U-shaped bracket 14 fixed inside the sun visor body 11, and a first rotating body 15 and a second rotating body provided between both side pieces 14a, 14a defining the U-shaped of the bracket 14. 16 and the first rotating body 15 provided on the upper side,
The second rotating body 16, which is rotatably supported by the both side pieces 14a, 14a of the bracket 14 and is provided on the lower side, is rotatable by the supporting shaft 17 with respect to the both side pieces 14a, 14a of the bracket 14. Support.

The former first rotating body 15 has teeth 15a formed on the entire outer peripheral surface of the first rotating body 15, and has a fitting hole 15b formed therein for fitting the tip of the mounting shaft 12 provided on the vehicle body side, and A ridge 15c is formed on the wall surface of the fitting hole 15b, and the ridge 15c is formed.
And a key groove 12a formed on the outer peripheral surface of the tip of the mounting shaft 12
Of the mounting shaft 12 to the fitting hole 15b.
It is configured to be able to fit together.

On the other hand, the second rotating body 16 has the above-described first
While forming a tooth 16a that meshes with the tooth 15a of the rotating body 15, between both side pieces 14a and 14a of the bracket 14 and its own end face, a braking leaf spring member 18 in the form of a liquid or a dish is provided. A rotation braking force is constantly applied by the spring pressure of the braking leaf spring member 18.

Therefore, in the mounting structure having such a structure, as shown in FIG. 1, the bracket 14 of the bearing member 13 is screwed (not shown).
After fixing to the inside of the sun visor body 11 via the etc., the engagement state of the convex line 15c and the key groove 12a is obtained, and the mounting shaft 12
If the tip end of the sun visor body 11 is fitted into the fitting hole 15b of the first rotating body 15 that constitutes the bearing member 13,
It will be rotatably attached to 2.

Moreover, in the mounted state of the sun visor body 11, as shown in the drawing, the teeth 15a of the first rotating body 15 and the second rotating body 1 are
Since the teeth 16a of the six mesh with each other and the rotation braking force by the braking leaf spring member 18 is applied to the second rotary body 16 to brake the rotation of the first rotary body 15, for example, the sun visor body 11 Even if the weight is large due to the attachment of the mirror, the lamp, etc., it is possible to reliably prevent the sun visor body 11 from rotating due to its own weight.

Further, when the sun visor body 11 is rotated to a desired position, a force that overcomes the braking force of the braking leaf spring member 18
When the sun visor body 11 is manually rotated in a predetermined direction, the first rotator 15 rotates while interlocking with the second rotator 16 along with the rotation of the sun visor body 11, and the sun visor body 11 reaches a desired position. In addition to being able to rotate, the sun visor body 11 can be reliably held at that position by the braking force of the braking leaf spring member 18 again at the rotating position.

Therefore, in the present embodiment, the sun visor body 11 can always be reliably held in that position even in a non-use state parallel to the vehicle body ceiling or in a use state in which the sun visor is rotated to an angle necessary for awning. Therefore, there is no fear that the sun visor body 1 is inadvertently rotated by its own weight due to traveling vibration of the automobile or the like.

In addition, the spring pressure of the leaf spring member 18 for braking is changed to the sun visor body.
By appropriately adjusting according to the weight of 11, any sun visor body 11 can be surely held at a desired position.

As described above, the bearing member according to the present invention includes the bracket fixed inside the sun visor body, and the first rotating body and the second rotating body rotatably supported by the bracket. The first rotating body forms teeth on the entire outer peripheral surface, and
A fitting hole for fitting the tip end portion of the mounting shaft is formed inside, the second rotating body has teeth that mesh with the teeth of the first rotating body over the entire outer peripheral surface, and the second rotating body and the bracket. Between,
Since the braking spring member that applies the rotational braking force to the second rotary body is interposed, the rotation of the braking spring member that is applied to the second rotary body that meshes with the first rotary body. The braking force makes it possible to always hold the sun visor body in a desired position with certainty.

Therefore, the mounting structure of the present invention has no possibility of inadvertently rotating the sun visor body due to its own weight due to the traveling vibration of the automobile as in the prior art, so that the weight of a large-sized mirror equipped with a recent trend is attached. Especially suitable for sun visors.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing a mounting structure of a sun visor according to an embodiment of the present invention, FIG. 2A is a front view showing a bearing member, FIG. 2B is a sectional view of the same, and FIG. 3 is a conventional mounting structure. FIG. 11 …… Sun visor body, 12 …… Mounting shaft, 13 …… Bearing member, 14 …… Bracket, 15 …… First rotating body, 15a…
... Tooth of the first rotating body, 15b ... Fitting hole, 16 ... Second rotating body, 16a ... Tooth of the second rotating body, 18 ... Braking leaf spring member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryuji Matsuno 2-3-18 Nihonbashi, Chuo-ku, Tokyo Kasai Kogyo Co., Ltd. (56) References Japanese Patent Publication No. 61-17686 (JP, B2)

Claims (1)

(57) [Claims] 1. A mounting structure in which a bearing member in a sun visor body and a mounting shaft are fitted to rotatably mount the sun visor body to a vehicle body, wherein the bearing member is a bracket fixed inside the sun visor body. A first rotating body and a second rotating body that are rotatably supported by the bracket are provided, and the first rotating body forms teeth on the entire outer peripheral surface, and
A fitting hole for fitting the tip portion of the mounting shaft is formed inside, and the second rotating body has teeth that mesh with the teeth of the first rotating body over the entire outer peripheral surface, and the second rotating body. A mounting structure for a sun visor, wherein a braking spring member that applies a rotational braking force to the second rotating body is interposed between the bracket and the bracket.