JP2540097Y2 - Stay mounting structure of cantilever headrest in 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 stay mounting structure for a cantilever headrest in a vehicle seat for supporting the headrest in a cantilever manner on a seat back.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, some conventional automobile seats support a headrest 1 in a cantilever manner on a seat back SB by means of a stay 2. As shown in FIG. this is,
A bracket 4 is welded to the top of the back frame 3 of the seat back SB, and the upper and lower stays 2 integrated with the headrest 1 are fastened to the bracket 4 by bolts 5,5. The bracket 4 has a side surface portion 41 along the side surface of the seat back SB, and a front surface portion 42 bent from the front end of the side surface portion 41 along the backrest surface of the seat back SB.
And a rear surface portion 43 bent from the rear end of the side surface portion 41 along the back surface of the seat back SB, and has a U-shaped cross section. Then, the front part 42 of the bracket 4
The rear part 43 is provided with insertion holes 44, 44 through which the screw parts 51, 51 of the bolts 5, 5 are inserted. The stays 2 are inserted between the front surface portion 42 and the rear surface portion 43 of the bracket 4 through the insertion holes 44, 44 of the bracket 4,
The bolts 5, 5 are formed at positions overlapping the holes 21, 21 of the stay 2 so that the screw portions 51, 51 are inserted into holes 21, 21 formed above and below the stay 2 by inserting the bolts 5, 5.

[0003]

Therefore, in order to fasten and fix the stay 2 of the headrest 1 to the bracket 4,
Insert the stay 2 into the bracket 4 from above, and
The stay 2 is moved upward and downward so that the holes 21, 21 of the bracket 4 overlap the insertion holes 44, 44 of the bracket 4 to align the holes 21, 21 of the stay 2 with the insertion holes 44, 44 of the bracket 4. Then, the screw portions 51, 51 of the bolts 5, 5 are inserted through the bracket 4 and the stay 2, the nuts are engaged with the screw portions 51, 51 of the bolts 5, 5, and the stay 2 is attached to the bracket 4 with the bolts 5, 5. Had to be fastened and fixed. Therefore, the holes 21 and 21 of the stay 2 are
As described above, the work for moving the stay 2 is required to align the position of the stay 2 with the insertion holes 44, 44, and there is a problem that it takes time to attach and fix the stay 2 to the stay. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has as its object to easily perform a mounting operation for fixing a stay to a bracket.

[0004]

According to the present invention, there is provided a stay mounting structure for a cantilever headrest in a vehicle seat according to the present invention, wherein a positioning plate along an inner surface of the bracket is fixed to the stay, and the bracket is attached to the plate. A locking portion for locking the upper end portion of the first member is formed.

[0005]

When the stay is inserted into the bracket until the locking portion of the positioning plate of the stay is locked to the bracket, the plate of the stay is locked to the upper end of the bracket. The stay can be easily aligned with the bracket simply by inserting the stay into the bracket.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described with reference to FIGS. 1 to 4. However, since the stay 2 is different from the conventional product, the stay 2 will be described, and the other components will be denoted by the same reference numerals. The description is omitted. Positioning plates 6 and 6 are fixed to the lower portion of the stay 2.

The plate 6 has a plate-like shape, and the upper and lower portions thereof have holes 6 so as to overlap the holes 21 of the stay 2.
1, 61 are formed. The plate 6 is provided at a position where the stay 2 faces the front surface portion 42 and the rear surface portion 43 of the bracket 4 when the stay 2 is inserted into the bracket 4. A locking portion 62 is formed on the plate 6 by bending at an upper portion thereof. The locking part 62 is a bracket 4
When the bracket 4 is inserted into the bracket 4,
Are fixed to the upper end 45 of the bracket 4 so as to overlap with the insertion holes 44, 44. The locking portion 62 of the plate 6 is bent in the direction of the bracket 4 and locked to the upper end portion 45 of the bracket 4 to prevent the stay 2 from dropping as described above.

According to the above configuration, when the stay 2 is inserted into the bracket 4, the locking portions 62, 62 formed on the plates 6, 6 of the stay 2 are connected to the front and rear surfaces 42, 42 of the bracket 4.
The holes 21, 21 of the stay 2 overlap with the insertion holes 44, 44 of the bracket 4.
Therefore, there is no need to move the stay 2 upward and downward to align the bracket 4 with the bracket 4, and the work of attaching the stay 2 to the bracket 4 can be easily performed. When the width of the plate 6 is set to be large enough to abut on the side surface 41 of the bracket 4, the stay 2 is moved left and right, so that alignment with the bracket 4 becomes unnecessary.

[0009]

According to the present invention, when the stay is inserted into the bracket, the locking portion of the plate is locked to the bracket by the locking portion formed on the plate fixed to the stay,
The stay can be inserted into the bracket without the stay dropping. Therefore, the work of positioning the stay in the bracket in the upward and downward directions becomes unnecessary, and the mounting work of fastening and fixing the stay to the bracket can be easily performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of the structure of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a perspective view before a headrest stay is attached.

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

FIG. 5 is a perspective view of an automobile seat using a conventional structure.

FIG. 6 is a perspective view of a main part in FIG. 5;

[Explanation of symbols]

 4 Bracket 2 Stay 6 Positioning plate

Claims (1)

(57) [Scope of request for utility model registration] 1. A cantilevered headrest stay which is inserted into a bracket having a U-shaped cross section welded to a back frame and supports the headrest in a cantilever manner, and the stay is fastened and fixed to the bracket. In the mounting structure, the stay is provided with a positioning plate fixed along an inner surface of the bracket, and a locking portion for locking the upper end of the bracket is formed on the plate. Mounting structure for cantilever headrests.