JP5556321B2 - Headrest support mounting structure for vehicle seat - Google Patents

Description

The present invention relates to a headrest support mounting structure for a vehicle seat in which mounting parts are mounted to a bracket fixed to a structure inside a seat through a mounting hole formed in a seat skin.

  The headrest attached to the seat back of the vehicle seat is adjustable in height with respect to the seat back, and the headrest support is inserted into a cylindrical bracket fixed to the top of the seat back frame. A headrest stay is inserted so as to be lockable at a plurality of positions (see Patent Document 1 below). Since the headrest support is inserted into and fixed to the cylindrical bracket, a slight gap is provided between the headrest support and the bracket. The headrest support and the bracket may interfere with each other to generate abnormal noise. Therefore, conventionally, a felt tape as a cushioning material is pasted on the outer periphery of the headrest support so that the headrest support and the bracket are not in direct contact with each other as a countermeasure against abnormal noise.

JP-A-8-66269

However, such conventional noise countermeasures require not only a separate felt tape, but also a work for attaching this to the headrest support, resulting in poor productivity.
In view of such problems, the present invention uses a seat skin around a mounting part for a vehicle seat such as a headrest support as a cushioning material, so that the productivity is poor without using another component as the cushioning material. The issue is to take measures against abnormal noises.

According to a first aspect of the present invention, there is provided a vehicle seat headrest in which a headrest support is inserted and attached to a cylindrical headrest support bracket fixed to a structure inside a seat through an attachment hole formed in a seat skin. In the support mounting structure, the seat cover is extended to the inside of the mounting hole to form an extended portion, and when the headrest support is attached to the bracket, the extended portion is interposed between the headrest support and the bracket. The headrest support has a distal end side inserted into the cylindrical shape of the bracket and a head portion located outside the distal end portion of the bracket. Between the inner peripheral wall of the bracket, the headrest support head and the bracket. Between the tip direction intersecting the axial direction of the bracket, and a headrest support mounting structure of a vehicle seat, characterized in that it is nipped from each axial direction.
According to the first invention, the extending portion of the seat skin is interposed between the headrest support and the bracket and functions as a cushioning material. Can be applied.

The second aspect of the present invention is the first invention, the seat cover at a position corresponding to the front Symbol mounting holes, by placing the cut so as to form two straight lines intersecting each other, the four triangular said An extension part is formed. A headrest support mounting structure for a vehicle seat.
According to the second invention, the attachment hole and the extending portion can be formed at the same time only by making two cuts, and the productivity is good. Moreover, since four extending portions are formed at equal intervals and the extending portions are inserted at equal intervals between the headrest support and the cylindrical bracket, it can be prevented from interfering with the brackets in all directions around the headrest support. It is possible to take measures against abnormal noise without fail.

It is assembly explanatory drawing of the headrest part of the vehicle seat which is one Embodiment of this invention. FIG. 2 is an enlarged vertical sectional view around one headrest support portion in FIG. 1. It is a perspective view of the sheet | seat skin in one Embodiment of this invention. It is a perspective view which shows the state which bent the cut | interruption of the sheet | seat skin of FIG. FIG. 5 is a VV line vertical cross-sectional view of the sheet skin of FIG. 4. FIG. 3 is an enlarged view of a portion surrounded by a circle VI in FIG. 2. It is a perspective view which shows the modification of the sheet | seat skin of FIG.

Embodiments for carrying out the present invention will be described with reference to the drawings.
This embodiment is a case where the present invention is applied to a headrest support mounting structure. In FIG. 1, a headrest support 6 is received in the upper part of a seat back frame 3 which is a structure of a seat back 1 of a vehicle seat. Thus, a pair of left and right brackets 4 formed in a cylindrical shape are provided by welding. A resin headrest support 6 is inserted into the bracket 4, and a stay 5 of the headrest 2 is inserted into the headrest support 6.
FIG. 2 shows a state in which the headrest support 6 is inserted into the bracket 4, a seat pad 11 is disposed around the bracket 4 and the seat back frame 3, and a seat skin 16 is covered on the surface of the seat pad 11. Yes. Although not shown in the drawings, the sheet skin 16 has a three-layer structure like a general one. From the surface layer side, a surface material such as a fabric, a cover pad made of urethane, and a back base fabric that is a woven fabric. Become.
A back material 12 for protecting the surface is provided on the inner surface of the seat pad 11 opposite to the sheet skin 16. Further, a press felt 14 is disposed on a part of the seat pad 11 to maintain the shape of the seat pad 11, and a backboard 15 is provided at a position facing the press felt 14 with the seat pad 11 interposed therebetween. ing. These structures are the same as those conventionally known and will not be described in detail.

  In the seat skin 16, the mounting hole portion through which the headrest support 6 passes is provided with cut lines 16 a and 16 b that form two straight lines orthogonal to each other as well shown in FIG. 3. When the headrest support 6 passes through the cuts 16a and 16b, four triangular extending portions 17a, 17b, 17c and 17d are formed in the insertion direction of the headrest support 6 as well shown in FIGS. The extending portions 17a, 17b, 17c, and 17d are inserted between the headrest support 6 and the bracket 4 as well shown in FIG. 6 as the headrest support 6 is inserted into the bracket 4. Since the bracket 4 is formed in a square cylinder and the headrest support 6 is formed so as to be fitted to the bracket 4, the four extending portions 17 a, 17 b, 17 c, and 17 d are arranged equally on the four sides of the bracket 4. As shown, cuts 16a and 16b are formed. Here, since the bracket 4 has a rectangular tube shape, the extending portions 17a, 17b, 17c, and 17d are preferably four pieces of uniform shape. However, depending on the shape of the bracket 4, the extending portion is defined as three or more cuts. It may be 6 or more. In the above description, the two straight lines forming the cut are orthogonal to each other. What is necessary is just to form an extending | stretching part so that an extending | stretching part may be effectively arrange | positioned in the place where the noise which is the subject in this invention generate | occur | produces. 3 and 4 show the sheet skin 16 in a partially cut shape for convenience.

As described above, in one embodiment, since the extending portions 17a, 17b, 17c, and 17d formed by the cuts 16a and 16b formed in the seat skin 16 are inserted between the headrest support 6 and the bracket 4, the headrest Even if there is a gap between the support 6 and the bracket 4, the headrest support 6 is filled even if the gap is filled with the extending portions 17a, 17b, 17c, and 17d of the seat skin 16 and the vibration during traveling of the vehicle is transmitted to the portion. And the bracket 4 are not in direct contact with each other, and the extending portions 17a, 17b, 17c, and 17d of the seat skin 16 inserted between the headrest support 6 and the bracket 4 serve as cushioning materials, and the generation of abnormal noise is suppressed. The As described above, the seat skin 16 has a three-layer structure, and includes a skin material such as a fabric having elasticity and a cover pad, so that the vibration suppressing effect is high.
FIG. 7 shows a modification of the cuts that can be made in the seat skin 16, and in this case, a substantially zigzag cut 16c is made in the penetrating portion of the headrest support 6 as shown. When the headrest support 6 is inserted into the cut 16 c, one rectangular extending portions 18 a and 18 b are formed at positions facing each other, and these are inserted between the headrest support 6 and the bracket 4.

Although one embodiment has been described above , the present invention can be implemented in various forms within the scope of the inventive idea.

DESCRIPTION OF SYMBOLS 1 Seat back of vehicle seat 2 Headrest 4 Bracket 6 Headrest support 16 Seat skin 16a, 16b, 16c Incision 17a, 17b, 17c, 17d, 18a, 18b Extension part

Claims (2)

The sheet inside the cylindrical headrest supporting bracket fixed to the structure, the headrest support attachment structure of the vehicle seat which is mounted by inserting through the mounting hole headrest support has been opened seat skin, wherein the seat skin Extending to the inside of the mounting hole to form an extending portion, and when the headrest support is attached to the bracket, the extending portion is inserted between the headrest support and the bracket, and the headrest support The side is inserted into the cylindrical shape of the bracket, the head thereof is located outside the distal end portion of the bracket, the extending portion is between the distal outer peripheral wall of the headrest support and the inner peripheral wall of the bracket, And between the head of the headrest support and the tip of the bracket, Headrest support mounting structure of a vehicle seat, characterized in that a direction crossing the axial direction of the serial bracket, which as well as the axial direction are sandwiched respectively. In the headrest support mounting structure of a vehicle seat according to claim 1, the seat cover at a position corresponding to the front Symbol mounting holes, by placing the cut so as to form two straight lines intersecting each other, the four triangular said A structure for mounting a headrest support for a vehicle seat, wherein an extending portion is formed.

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