JPH0339076Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a headrest vertical adjustment mechanism for a vehicle seat, specifically, an outer slide that stands up above the seat back, and a mechanism that includes an outer slide that is provided on both sides of the headrest. This invention relates to an improvement in a headrest vertical adjustment mechanism for a vehicle seat, which comprises an inner slide vertically movably inserted into the inside of the vehicle seat, and a stopper provided at the lower end of the outer slide to prevent the inner slide from slipping downward.

(Prior Art) Conventionally, in a headrest vertical adjustment mechanism for a vehicle seat of this type, an inner slide 7 is attached to the inside of an outer slide 6 so as to be vertically slidable, as shown in FIG. A stopper 8' with a screw is provided at the lower end to prevent the inner slide 7 from coming off downward.

By the way, since the inner slide 7 is made of metal and the screw stopper 8' is also made of metal, there is a problem in that when the inner slide 7 hits the stopper 8', a metallic impact sound is generated, causing discomfort. It was hot. Furthermore, since the outer slide is attached above the seat back via an arm, the stopper screws, screws, etc. are exposed at the bottom, which is unfavorable in terms of appearance.

In view of these points, it is an object of the present invention to solve the problems of the generation of impact noise due to contact of the inner slide and the poor appearance of the lower part of the outer slide.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a stopper made of synthetic resin that is fitted and fixed to the lower part of the outer slide, and a protection that covers the lower edge of the outer slide at the lower part. It is characterized in that the cover is integrally formed.

Therefore, since the stopper is made of a synthetic resin member, it can absorb the impact of the end of the inner slide and prevent the generation of impact noise.

Further, since the protective cover is integrated with the stopper, when the stopper is attached to the lower end of the outer slide, the protective cover covers the lower end of the outer slide, improving the appearance.

(Example) An example of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a seat, which is composed of a seat cushion 2 and a seat back 3. Reference numeral 4 denotes a headrest, and inner slides 7 attached to both sides of the headrest 4 can freely slide up and down on an outer slide 6 having a substantially C-shaped cross section and provided at the tip of an arm 5 extending upward and inward from both sides of the seat bag 3. installed on. Therefore, the lower end of the outer slide 6 is open and visible from the outside. Therefore, a stopper 8 with a protective cover, which will be described later, is attached to this opening.
This is intended to prevent the inner slide 7 from coming out of the opening of the outer slide 6.

The inner slide 7 is a flat metal plate, through which a stay 12 connected to a frame (not shown) in the head rest 4 is inserted, and the tip end 1 of the stay 12 is inserted into the inner slide 7.
2a engages with a locking groove (not shown) provided on the wall surface of the outer slide 6, so that the headrest 4 is maintained at a predetermined height.

The stopper 8, which is integrally molded with the protective cover 9 for preventing the inner slide 7 from coming off downward, has the following structure.

That is, the stopper 8 is inserted into the outer slide 6 through an opening 6a provided at the bottom of the outer slide 6, and is fixed to the outer slide 6 with a screw 10 using the screw hole 8a.

In this state, the protective cover 9 integrally molded with the stopper 8 consists of a horizontal part 9a and a vertical part 9b, the horizontal part 9a covers the lower part of the outer slide 6, and the vertical part 9b covers the lower front surface of the outer slide 6. It is covered to maintain its appearance.

At this time, the distal end protrusion 9c of the horizontal portion 9a of the protective cover fits into the recess 8a of the arm 5, making the mounted state even more stable.

The notch 9d provided in the vertical part 9b is a guide for moving the stay 12 of the inner slide 7 up and down,
The inner slide 7 is designed not to be obstructed from reaching the stopper 8 (Figs. 2, 3, and 4).
figure).

(Effects of the invention) (1) In this invention, the stopper is made of synthetic resin to prevent the inner slide from falling downward, so when the inner slide moves downward, it absorbs the impact sound and eliminates the discomfort caused by abnormal noise. can do.

(2) The protective cover can shade the lower part of the inner slide and outer slide, improving the appearance.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Figs. 2 and 3 are exploded explanatory views of the main parts of Fig. 1, Fig. 4 is a cross-sectional explanatory view of the main parts, and Fig. 5 is a conventional example. FIG. In the figure, 3 is the seat back, 4 is the headrest,
5 is an arm, 6 is an outer slide, 7 is an inner slide, 8 is a stopper, and 9 is a protective cover.

Claims (1)

[Claims for Utility Model Registration] An outer slide that stands up above the seat back, an inner slide that is provided on both sides of the headrest and is vertically movably inserted into the inner side of the outer slide, and prevents the inner slide from coming off downward. In the headrest vertical adjustment mechanism for a vehicle seat, the mechanism includes a stopper provided at the lower end of the outer slide. A headrest vertical adjustment mechanism for a vehicle seat, characterized in that it is integrally formed of a synthetic resin material.