JP2540094Y2 - Headrest stay mounting structure for 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 headrest stay mounting structure for a vehicle seat which supports a headrest in a cantilever manner on a seat back.

[0002]

2. Description of the Related Art As shown in FIG. 4, there is a conventional automobile seat in which a headrest 1 is supported by a seatback SB in a cantilever manner by a stay 2. As shown in FIG. This is achieved by welding a bracket 4 to the top of the back frame 3 of the seat back SB and attaching the headrest 1 to the bracket 4.
And the stay 2 integrated with it is fastened and fixed by bolts 5 and 5.

[0003]

Therefore, the load generated on the headrest 1 is generated on the bracket 4 via the stay 2, but since the bracket 4 is fixed to the back frame 3 by welding, an excessively large load is applied to the headrest 1. When a load is generated, the bracket 4 cannot withstand the load, and the bracket 4 may be detached from the back frame 3, and there is a problem that the mounting strength of the stay 2 is hindered. Further, in order to support the headrest 1 in a cantilever manner on the seat back SB, the bracket 4 must be welded to the back frame 3, and welding work of the bracket 4 is required, and it takes time to attach the headrest stay. Workability was poor. SUMMARY OF THE INVENTION It is an object of the present invention to provide a headrest with sufficient strength to withstand the load generated on the headrest, and to facilitate the work of attaching the headrest stay.

[0004]

In order to achieve the above object, according to the present invention, a side plate is fixed to a side frame portion of a back frame along one side portion of the seat back, and a side plate of the side plate is fixed. A stay mounting portion projecting upward from the side frame portion is integrally formed at the upper portion, and the stay is fixed to the stay mounting portion.

[0005]

[Function] The side plate fixed to the side frame part of the back frame has a stay mounting part integrally formed on the upper part, and the stay of the headrest is fixed to this stay mounting part. Since it is dispersed from the mounting portion to the side plate, the mounting strength of the stay is improved. Also, the stay only needs to be fixed to the stay mounting part integrally formed on the upper part of the side plate, and the work of fixing the bracket to the back frame and fixing the stay to the bracket as in the past is unnecessary, making the work of attaching the stay easy Can be done.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described with reference to FIGS. The back frame 3 has a pipe formed in a frame shape, and the ends 32, 32 are fixed by welding. The side plate 6 is fixed to the side frame 31 of the back frame 3 along one side of the seat back SB. As shown in FIG. 3, the side plate 6 has a U-shaped cross section, and includes a main body 61 along the side frame portion 31, a front bent portion 62 obtained by bending a front end of the main body 61, and a main body. A bent portion 63 is formed by bending a rear end of the stay 61, and an upper portion of the side plate 6 forms a stay mounting portion 64.
The side plate 6 has a main body portion 61 formed gradually narrower upward and a stay mounting portion 64 protrudes above the side frame portion 31. The main body 61 of the side plate 6 has, at its lower portion, a holding projection 65 for holding the side frame 31 with the rear bent portion 63 when the side plate 6 is fixed to the side frame 31, 65 are formed. Further, the stay mounting portion 6 of the side plate 6
Reference numeral 4 denotes a size in which the stay 2 is fitted into the inside thereof.
Insertion holes 66, 66 through which the screw portions 51, 51 of the bolts 5, 5 are inserted are formed below. Further, screw holes 67, 67 through which bolts 8, 8 for fixing the side plate 6 to the side frame portion 31 are inserted are provided below the main body 61 of the side plate 6. Side plate 6
The lower part of the main body 61 is connected to a seat cushion (not shown) via a reclining device. The stay 2 of the headrest 1 is fitted into the stay mounting portion 64 of the side plate 6, and is fastened and fixed to the stay mounting portion 64 by bolts 5 and nuts 7. In the drawing, 9 is an S-shaped spring, and 10 is a side wire.

The side plate 6 is fixed to the side frame portion 31 with bolts 8 and 8 and further sandwiched between the side frame portion 31 by the holding projections 65... And the rear bent portion 63. Since the lower portion is connected to the seat back via the reclining device, even if the stay 2 is fixed to the stay mounting portion 64 of the side plate 6, the strength of the side plate 6 is greatly improved, so that an excessive load is applied. However, even when the stay 2 occurs, the strength of the side plate 6 is large, so that the side plate 6 can sufficiently bear the load. Also, the side plate 6
As described above, since it is securely fixed to the side frame portion 31, there is no sticking. Therefore, the stay 2 can be reliably supported.

[0008]

According to the present invention, the side plate is fixed to the side frame portion of the back frame, and a stay mounting portion projecting upward from the side frame portion is integrally formed on the upper portion of the side plate. Since the stay is fixed to the stay mounting portion, the load from the headrest is dispersed and generated on the side plate. Therefore, as compared with the conventional case where the stay is fixed to the bracket, the mounting strength of the stay is improved, and the stay does not stick. Further, if the stay of the headrest is fixed to the stay attaching portion of the side plate, the work of attaching the stay is completed, so that the workability is improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a back frame using the structure of the present invention.

FIG. 2 is a perspective view in which the back frame of FIG. 1 is assembled.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a perspective view of an automobile seat using a conventional product.

[Explanation of symbols]

 3 Back frame 31 Side frame part 6 Side plate 64 Stay mounting part

Claims (1)

(57) [Scope of request for utility model registration] 1. A vehicle seat having a headrest fixed to a back frame of a seat back in a cantilever manner via a stay, wherein a side frame portion of the back frame along one side of the seat back is provided. A side plate is fixed, and a stay mounting portion projecting upward from the side frame portion is integrally formed on an upper portion of the side plate, and the stay is fixed to the stay mounting portion. Headrest stay mounting structure for a vehicular seat.