JP2540089Y2 - Backboard structure of vehicle seat - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backboard structure for mounting a headrest on a vehicle seat supporting a cantilevered seatback on a seatback.

[0002]

2. Description of the Related Art Some conventional automobile seats have a headrest supported in a cantilever manner on a seatback by a stay. In this method, a bracket is welded to the top of a back frame of a seat back, and a stay integrated with a headrest is fixed to the bracket by bolts. Therefore, since the bracket and the stay are exposed to the outside from the upper portion of the seat back, the bracket and the stay exposed to the outside are covered by a stay-back covering portion extending from the back board for covering the back of the seat back and the stay after the stay. It is covered with a covering part and a separate pre-stay covering body.

[0003]

In the meantime, a gap is formed between the stay and the bracket in the post-stay coating portion and the pre-stay coating body due to a molding error of the post-stay coating portion and a design reason. It is molded as follows. Therefore, since the stay covering portion is not fixed to the stay and the bracket, the vibration of the vehicle comes into contact with the stay and the like to generate abnormal noise. Also, when fixing the joining end of the pre-stay coating to the post-stay coating,
Since it was difficult to determine the position of the coating before the stay with respect to the coating after the stay, the workability was extremely poor. Therefore, the present invention has an object to prevent the generation of abnormal noise due to the contact between the stay covering portion, the stay before covering member and the stay and the bracket, and to improve the attachment property of the stay before covering member to the post stay covering portion. I do.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a rear covering portion which comes into contact with one side surface of a bracket and guides the front covering member when attaching the front covering member. This is a structure in which ribs are integrally provided.

[0005]

Since the stay-back covering is fixed to the bracket by the rib, the stay-back covering does not come into contact with the vehicle due to vibration. In addition, since the pre-stay covering is guided by the rib integrated with the post-stay covering portion, it is positioned at a predetermined position of the post-stay covering portion, and does not contact the bracket and the stay by the rib.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a back frame (4) and a back board (B) of a seat back. The back frame (4) is formed by bending a metal pipe into an inverted U shape. A spring material such as an S-shaped spring is stretched over the frame (4), a cushion body made of foam is applied to the frame, and the foam body is covered with a skin, and then the back and back sides are covered with the back board (B). Seat back (SB) shown in FIG.
Is to be assembled. The back board (B) is fixed by screwing to a mounting member fixed to the back frame (4). A bracket (5) for fixing the stay (6) is previously welded to the corner at the top of the back frame (4), and the headrest (HR) is attached to the bracket (5) as shown by the chain line in FIG. ) Is fastened by bolts (51) as shown in FIG. In FIG. 2, (5
a) (5a) is a stay (6) provided on the bracket (5)
3 shows a through hole for fastening.

The back board (8) is formed of a hard synthetic resin, and the bracket (5),
A stay post-covering portion (1) for covering the rear surface of the stay (6) and the rear portion of the left and right side surfaces is integrally formed. In the figure, (11) shows the back surface of the post-stay covering portion (1), (12) shows the outer surface portion, and (13) shows the inner surface portion.

The outer side surface portion (12) of the post-stay covering portion (1) is provided with ribs (3) (3)
(3) are fixed, and each of the ribs (3)... Is a plate of a synthetic resin and is horizontally fixed to the inner surface of the outer surface portion (12). The ribs (3) may be provided on both of the inner side surfaces (12). The inner edges (31) of the ribs (3) contact the side walls of the bracket (5), and the ribs (3) project forward of the outer surface (12). The protrusions are referred to as guides (32). Thus, the ribs (3) provided on the post-stay covering portion (1) are fixed by abutting on the bracket (5) as shown in FIG.

FIGS. 3 and 4 show a post-stay coating (1) and a post-stay coating (2) separate from the post-stay coating (1).
Shows a state in which is fixed, and the stay pre-coated body (2)
The stay (6) and the bracket (5) are formed of the same synthetic resin as that of the rear cover (1) so as to cover the front surface and the front side of the left and right side surfaces of the bracket (5). In the figure,
(21) shows the front surface portion of the stay pre-cover (2), (22) shows the outer surface portion, and (23) shows the inner surface portion. When joining the front stay body (2) to the rear side part (1) of the stay, the front stay body (2) is joined to the ends by using the guide portions (32) of the ribs (3). To Although not shown, the joining portion between the pre-stay coating body (2) and the post-stay coating part (1) is formed in an uneven shape to fit each other. Further, the stay front cover (2) is inserted into a through hole provided in the bracket (5) and locked by a locking projection (24) protruding from the inner surface of the front portion (21). (5) It is fixed to the side.

[0010]

According to the present invention, since the rib is fixed to the back cover integral with the backboard, the rib abuts the bracket integral with the back frame, and the back cover has a play. Thus, generation of abnormal noise can be prevented. Further, since the pre-stay covering body is guided by the guide portion of the rib provided on the post-stay covering portion, it can be easily fixed at a predetermined position with respect to the post-stay covering portion, the stay and the bracket.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a main part of the present invention.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is a perspective view of an automobile seat according to the present invention;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

[Explanation of symbols]

 B Backboard 1 Cover after stay 2 Cover before stay 3 Rib 4 Back frame 5 Bracket 6 Stay

Claims (1)

(57) [Scope of request for utility model registration] 1. A backboard mounted on a vehicle seat in which a headrest is fixed to a bracket welded to a back frame via a stay in a cantilever manner, wherein the backboard includes the stay, a back surface of the bracket, and A stay rear covering portion covering the rear portions of the left and right side surfaces is integrally extended, and the stay rear covering portion is provided with a rib abutting on at least one side surface of the bracket, and the rib is provided forward of one side surface of the bracket. A backboard structure for a vehicle seat, comprising: a protruding guide portion; and an inner surface of a stay front covering body that covers front surfaces and front left and right side surfaces of the stay and the bracket.