JP2001061591A - Headrest attaching structure of forwardly folding rear seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a headrest to a frame constructed of panels for a forwardly folding seatback. SOLUTION: A frame 1 constructed of panels is provided with an annular bead part 10 and a bracket 2 is welded to the frame 1. A holder 20 for passing the stay S of a headrest H therethrough is welded to the bracket 2, and the upper leg 23 of the bracket 2 is welded to the upper tapered part 10B of the annular bead part 10 of the frame 1 while the lower leg 24 of the bracket 2 is welded to the pad supporting part 12 of the frame 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a headrest in a seat back of a rear seat capable of leaning forward.

[0002]

2. Description of the Related Art In order to ensure rigidity, a conventional front-falling seat back uses a frame in which a pipe is bent into a frame shape, and a holder for inserting a stay of a headrest is welded to this frame.

[0003] A panel is welded to the pipe frame, and the panel supports a foam pad of the seat back.

[0004]

Therefore, the conventional product has a problem that the weight and cost increase due to the welding structure of the frame-shaped pipe frame and the flat panel for mounting the headrest.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a headrest mounting structure which does not increase cost and weight in a seatback with a headrest.

[0006]

A headrest mounting structure according to the present invention for achieving the above object has an annular bead portion formed annularly and protruding forward along the outer periphery and provided on the lower left and right sides. A panel frame for mounting the mounting portion to the vehicle body or the seat cushion side so that it can be tilted forward,
It consists of a bracket that has a holder that is welded to the upper part of this frame and that inserts the stay of the headrest, and the bracket is a seat that welds the holder to the left and right,
An upper leg portion welded to the upper tapered portion of the annular bead portion of the frame integrally with the seat portion, and a lower leg portion welded to the flat pad support portion of the frame. .

[0007] With the above configuration, the headrest can be mounted without using a conventional pipe frame.

Further, by forming a support bead portion extending from the annular bead portion below the bracket toward the mounting portion, an impact load from the headrest side input to the seat back is transmitted through the support bead portion. And are distributed to the vehicle body.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a frame (1) made of a seat back panel used in the present invention, and this frame (1) is formed by pressing a single metal plate.

At the lower left and right sides of the frame (1), there are provided mounting portions (17) and (17) which can be mounted on the vehicle body or the seat cushion so as to be able to lean forward. An annular bead portion (10) projecting in a substantially U-shaped cross section is formed.

The holder (20) is slightly left or right of the center of the upper part of the annular bead portion (10).
The upper leg (22) (2) of the bracket (2) with (20)
2) is welded. A substantially T-shaped support bead portion (14, 15) is provided from the upper portion of the annular bead portion (10) corresponding to the center in the left-right direction of the bracket (2) toward the mounting portion (17) (17). It is.

The bearing beads (14) and (15) are deep drawn by pressing similarly to the annular bead (10), and project from the frame (1) forward with respect to the annular bead (10). Is formed low.

In FIG. 1, (3) is a lock member for locking the seat back to the vehicle body side, (11) is a flange formed by bending rightward at the periphery of the frame (1) excluding the lower end, (12) Denotes a flat pad supporting portion of the frame (1), and (13) denotes a flat pad outer peripheral supporting portion provided on an outer peripheral portion except an upper portion of the annular bead portion (10).

Therefore, as described above, the frame (1) has the annular bead portion (10), the bearing bead portions (14) and (15),
The rigidity is increased by the flange (13) and the like, so that the load input to the frame (1) from the headrest via the bracket (2) can be dispersed to the vehicle body and the like.

As shown in FIG. 4, the bracket (2) is integrally welded to a pair of left and right cylindrical holders (20) and (20) through which the stays of the headrest are inserted.
The left and right holders (20) are welded to both sides of a seat (21) made of a plate. The bracket (2) has a seat (21), upper legs (23) and (23) integrally extending to the left and right of the seat (21), and opposites of the upper legs (23) and (23). (2)
5) It is formed in a substantially trapezoidal side surface having lower legs (24) and (24) attached thereto.

The seat (21) has a bent portion (21).
A) is extended, and the upper leg portion (23) has an upper bead portion (22), and the lower leg portion (24) has a lower bead portion (24).
A) are each drawn, and the seat (21) and the upper leg (2) are drawn.
3) Reinforcing the lower leg (24).

In FIG. 4, (22A) and (25A)
Indicates a welding position with respect to the frame (1).

As shown in FIGS. 2 and 3, the bracket (2) has an upper bead (22) of an upper leg (23) on an annular bead (1) of a frame (1) and a lower bead on the lower bead. The joints (25) of the legs (24) are each welded to the pad supports (12) of the frame (1).

In order to prevent the deformation of the bracket (2) due to the impact load inputted from the headrest and the separation from the frame (1), the upper bead portion (22)
The lower leg (24) has a longer overall length so as to be joined to the upper taper portion (10B) of the annular bead portion (1) and the pad support portion (1) farther from the holder (20).
In 2), a joint (25) is formed so as to join.

In FIGS. 2 and 3, (10A) indicates the top of the annular bead portion (10), and (10C) indicates the lower tapered portion.

FIG. 5 shows a state in which the headrest (H) is attached. The stay (S) of the headrest (H) is inserted into the holder (20) via the headrest support (26), and the holder (20) is Since the bracket (2) to be welded and the frame (1) to which the bracket (2) is welded are configured as described above, the bracket (2) and the frame (1) are moved by the impact load input to the headrest. No deformation.

[0022]

According to the first aspect of the present invention, a headrest can be attached to a frame composed of a single panel, so that the weight can be reduced and the cost can be reduced compared to the conventional product.

According to the second aspect of the present invention, the periphery of the bracket for mounting the headrest in the frame is reinforced, and the frame is not deformed by an impact load input to the frame via the bracket.

[Brief description of the drawings]

FIG. 1 is a plan view of a frame used in the present invention.

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

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a perspective view of a bracket.

FIG. 5 is a sectional view showing a main part of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Bracket 10 Ring bead part 12 Pad support part 14 Bearing bead part 15 Support bead part 20 Holder 21 Seat part 23 Upper leg part 24 Lower leg part H Headrest S Stay

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mamoru Hozumi 2-1-1 Toyota-cho, Kariya-shi, Aichi Prefecture Inside Toyota Industries Corporation (72) Inventor Yoshiaki Kubo 3-2-1, Matsubara-cho, Akishima-shi, Tokyo Tachi-S Co., Ltd. (72) Inventor Koji Ito 3-2-112 Matsubaracho, Akishima-shi, Tokyo F-Term Co., Ltd. F-term (reference) 3B084 DD01 DD07 3B087 DC05

Claims (2)

[Claims] 1. A panel-shaped frame having an annular bead formed in an annular shape and projecting forward along the outer periphery, and having mounting portions provided on the lower left and right sides mounted on a vehicle body or a seat cushion so as to be able to lean forward. A bracket having a holder welded to the upper part of the frame and having a headrest stay inserted therethrough, the bracket having a seat portion for welding the holder to the left and right, and an upper tapered portion of an annular bead portion of the frame integrated with the seat portion. A headrest mounting structure for a front-falling rear seat, comprising: an upper leg portion welded to the front seat; and a lower leg portion welded to a flat pad support portion of the frame. 2. The headrest mounting structure for a front-rearward rear seat according to claim 1, wherein a support bead portion is formed so as to extend from the annular bead portion below the bracket toward the mounting portion.