JPH0625173Y2 - Car seat armrests - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to an armrest of a vehicle seat.

(Prior Art) Conventionally, various armrests have been put into practical use, which are swingably attached to a side portion of a seat back in a use (lower swing) position and a storage (upward swing) position.

When mounting the armrest as described above on the side of the seat back, fit the bearing sleeve on the armrest side to the support shaft on the seatback side, and the bearing sleeve does not come off the support shaft from the outside of the armrest with bolts or the like. However, since the bolts and the like can be seen from the outside of the armrest, it is necessary to cover them with fasteners, caps, and the like, and there is a problem that work such as bolting up is troublesome.

Therefore, in the Japanese Patent Application No. 62-90944, the present applicant does not need to cover the outer side of the armrest with a fastener, a cap, or the like, and further, in order to make it possible to assemble the seatback frame with one touch. Fit the bearing sleeve provided on the armrest from the inner end side to the fixed support shaft, and engage the locking ring at the outer end of the bearing sleeve with the ring groove at the tip of the support shaft to secure the seat back. We proposed an armrest for a car seat that is equipped with an armrest.

According to this, only the opening for fitting the support shaft is provided on the inner end side of the bearing sleeve of the armrest, and the outer end side,
In other words, because there is no need for bolt-up openings on the outside of the armrest (capless armrest), the appearance is improved, and by simply fitting the bearing sleeve of the armrest to the support shaft of the seatback frame,
Since the bearing sleeve is locked to the support shaft so as not to come off, it is possible to assemble with one touch.

(Problems to be solved by the invention) By the way, in the case of vertically swinging the armrest, the operation feeling becomes good if an appropriate friction torque is given, but if the moderation is given, the operation feeling becomes better. Become.

The present invention has been made to meet the above-mentioned demand, and in the so-called capless armrest as described above,
The object is to give a moderation to the swinging operation of the armrest with a simple structure.

(Means for Solving the Problem) Therefore, according to the present invention, the bearing sleeve provided on the armrest frame is fitted to the support shaft fixed to the seat back frame from the inner end side, and In an armrest of an automobile seat in which a locking ring at an outer end portion of a bearing sleeve is engaged with a ring groove to attach an armrest to a seatback, a base portion of the support shaft is formed in a substantially triangular shape, and the armrest frame is provided. Is provided with a stopper member that is abutted against one side of the base portion of the support shaft in the upper swing position and the lower swing position, and an Ω-shaped spring member is externally fitted to the stopper member, and both ends of the spring member are , Installed so that the armrest is urged to urge the armrest in the swinging direction on the adjacent tops of the base of the support shaft in the upper swinging position and the lower swinging position. And it is characterized in that it is.

(Operation and effect of the device) The present invention has an Ω at the upper swing position and the lower swing position of the armrest.
Since both ends of the spring member ride on the adjacent apexes of the substantially triangular base of the support shaft so as to bias the armrest in the swinging direction, the armrest swings between the upper swing position and the lower swing position. The moderation is given, and the swing operation feeling of the armrest is improved.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 7, an automobile seat 1 is composed of a seat cushion 2 and a seat back 3, and a side portion of the seat back 3 has a downward swing (use) which projects substantially horizontally forward. A swingable armrest 4 is attached to a position A and an upper swinging (storing) position B that rises substantially vertically upward.

As shown in FIG. 1, an inner end portion 6a and an outer end portion 6b of a bearing sleeve 6 are fixed to a frame 5 of an armrest 4, and a slit groove 6d reaching a center hole 6c is provided on the outer end portion 6b side. , 6
A d is formed, and an ohmic ring 7 (see FIG. 2) protruding into the center hole 6c is fitted in the slit grooves 6d, 6d.

A bracket 9 is fixed to the frame of the seat back 3, and the base portion 10a of the support shaft 10 is fixed to the bracket 9.
Is fixed.

The base portion 10a of the support shaft 10 is formed in a substantially triangular shape (see FIG. 4), and at the tip of the support shaft portion 10b,
A ring groove 10c corresponding to the slit grooves 6d, 6d of the bearing sleeve 6 is formed.

A stopper ring 16 is fixed to the outer surface of the armrest 4 on the seat back 3 side of the frame 5, coaxially with the support shaft 10, and the stopper ring 16 includes:
As shown in FIG. 4, the lower swing position A of the armrest 4 is shown.
The armrest 4 is alternately brought into contact with one side 10d of the base 10a of the support shaft 10 at the upper swing position B (see FIG. 5) and the upper swing position B (see FIG. 6). The protrusion 16a is formed so as to be pressed against.

A play removing spring 17 is fitted to the support shaft portion 10b of the support shaft 10, and the play removing spring 17 contacts the base portion 10a of the support shaft and the armrest frame 5.

An Ω-shaped spring member 18 is externally fitted to the stopper ring 16, and both ends 18a and 18b of the spring member 18 are at the swinging intermediate position of the armrest 4 (see FIG. 4), and the supporting shaft 10 of Oblique side portion 10 adjacent to one side portion 10d of the base portion 10a
They are located so as not to touch e and 10f.

Then, the lower swing position of the armrest 4 (see FIG. 5)
Thus, one end 18a of the spring member 18 has a first apex 1 of the base 10a.
The armrest 4 is urged in the downward swing direction by the spring member 18 by riding on 0 g and riding on the second vertex 10h on the other end 18b.

In the upper swing position of the armrest 4 (see FIG. 6),
The other end 18b of the spring member 18 rides on the third apex 10i, and the one end 18a rides on the second apex 10h, whereby the armrest 4 is biased by the spring member 18 in the upward swing direction.

With the above configuration, when the bearing sleeve 6 of the armrest 4 is fitted into the support shaft portion 10b of the support shaft 10 during assembly, the ohmic ring 7 of the bearing sleeve 6 causes the tip of the support shaft 10 to move. While being expanded by the tapered portion, it comes into engagement with the ring groove 10c.

As a result, the bearing sleeve 6 with respect to the support shaft 10
The armrest 4 can be assembled with one touch since it is locked so as not to come off.

Further, since the outer skin of the armrest 4 on the outer end portion side of the bearing sleeve 6 does not have a conventional bolt-up opening, the external appearance is good.

A rattling disc spring 17 provided between the base portion 10a of the support shaft 10 and the armrest frame 5 removes the rattling of the armrest 4 in the direction of the support shaft, and also allows the armrest 4 to vertically swing. The torque will be applied.

Further, as the armrest 4 swings up and down, the spring member 1
Both ends 18a, 18b of 8 ride on the respective vertices 10g to 10i of the base 10a of the support shaft 10 so that the armrest 4
In the lower swing position A and the upper swing position B, the swing is given a moderation.

[Brief description of drawings]

1 is a sectional view of an armrest according to the present invention, FIG. 2 is a sectional view taken along the line I--I of FIG. 1, FIG. 3 is an exploded perspective view of the armrest, and FIG. 4 is a front view of the armrest in a swinging intermediate position. Figures 5 are front views of the armrest in the lower swing position, 6th
FIG. 7 is a front view of the armrest in an upper swing position, and FIG. 7 is a perspective view of a vehicle seat. 1 ... Automotive seat, 2 ... Seat cushion, 3 ... Seat back, 4 ... Armrest, 6 ... Bearing sleeve, 7 ... Ohm ring, 10 ... Support shaft, 10a ... Base, 10g-10i ...... Apex, 16 ...... Stopper ring, 16a ...... Projection part, 18 ...... Spring member, 18, 18b ...... Both ends, A ...... Lower swing (use) position, B ... Upper swing (retract) position.

Claims (1)

[Scope of utility model registration request] 1. A support shaft fixed to a seat back frame is fitted with a bearing sleeve provided on an armrest frame from the inner end side, and an outer end portion of the bearing sleeve is locked in a ring groove at the front end of the support shaft. Engage the rings,
In an armrest of an automobile seat in which an armrest is attached to a seat back, a base portion of the support shaft is formed in a substantially triangular shape, and one side of a base portion of the support shaft is formed on the armrest frame in an upper swing position and a lower swing position. Is provided with a stopper member, and a Ω-shaped spring member is externally fitted to the stopper member, and both ends of the spring member are adjacent to the base portion of the support shaft in the upper swing position and the lower swing position. An armrest for an automobile seat, characterized in that it is set on the top so as to urge the armrest in a swinging direction.