JPH09164041A - Seat cover suspension structure for seat with back board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly perform the back board fitting work by forming straight sections and the upper and lower bend sections on insert wires insert-molded along suspension grooves vertically recessed on a seat back cushion pad, and fixing the surface side of a seat back cover to the straight sections. SOLUTION: Insert wires 31 insert-molded along the right and left suspension grooves 30 recessed on a cushion pad 27 are provided with straight sections 31a buried near the bottom section side of the suspension grooves 30 and bend sections 30a exposed on the back face side from slit-like insertion holes 30 a bored on the back face side of the cushion pad 27 from the prescribed positions of the suspension grooves 30. The surface side of a seat back cover is suspended on the straight sections 31a, the right and left stile fabrics 13b are suspended on the bend sections 31b, and the surface and back face are suspension-fixed to the right and left insert wires 31. The trouble caused by the conventional vertical wire frame can be eliminated, and the fitting workability of a back board is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat with a backboard, and more particularly, to a structure for suspending a seat cover that covers a seat back cushion pad of the seat.

[0002]

2. Description of the Related Art Conventionally, a seat back 1 of this type of seat with a back board is composed of a seat back frame 2, a seat back cushion pad 7, a seat back cover 12 and a back board 17, as shown in FIG. The seat back frame 2 is formed of a pipe material into a substantially rectangular frame, and a crank-shaped horizontal wire frame 3a and a straight wire frame 3 are provided between the left and right frames.
b and a vertical wire frame 4 is vertically installed between the upper and lower frames at a predetermined interval, and a lumbar support is provided at a predetermined position on the lower side between the left and right frames via a torsion bar 6. 5 is attached.

The seat back cushion pad 7 is formed by foaming a urethane material into a shape capable of enclosing the seat back frame 2. As shown in FIGS. 7 to 9, the seat back cushion pad 7 is formed on the left and right sides of the central backrest portion 8. Is formed with a raised portion 9, and a suspension groove 10 of the seat back cover 12 is provided in a partition between the backrest portion 8 and the left and right raised portions 9, and the suspension groove 10 is used for suspending along the suspension groove 10. Insert wire 11
Are insert-molded.

A plurality of skin pieces are sewn on the seat back cover 12 so that the seat back cushion 7 can be covered, and a hanging bag 14a is formed at the ends of the upper and lower sack cloths 13a. 15 is inserted, and hanging bags 14b are also formed on the left and right frame cloths 13b so that the hanging wires 15 are inserted. Further, a hanging bag 16 is also formed on a sewing portion that follows the hanging groove 10 on the front surface side, and the hanging wire 15 is also inserted through the hanging bag 16.

The backboard 17 is a seatback 1
Is formed in a substantially rectangular shape so as to be able to shield the rear side thereof, an engaging piece 18a for engaging the crank-shaped horizontal wire frame 3a is formed on the inner surface thereof, and a straight horizontal wire frame is formed on the lower side. An engagement piece 18b that engages with 3b is formed.

A seat back cushion 7 is attached to the seat back frame 2 formed as described above in an encasing manner, and a seat back cover 12 is covered with the seat back cushion 7, and the seat back cover 12 is hung when the cover ring is applied. The bag 16 is fitted along the hanging groove 10, and the hanging wire 15 inserted into the hanging bag 16 is fixed to the insert wire 11 inserted in the seat back cushion 7 in a retracted manner through the C-link 19, and The upper and lower frames 13a are seat back frames 2
The hanging wire 15 that is hung on the back side of the seat and inserted into the hanging bag 14a is fixed to the upper and lower horizontal wire frames 3a and 3b through the C-link 19, and the left and right frames 13b are also attached to the seat back frame 2. The hanging wires 15 drawn into the back side of the and inserted into the hanging bag 14b are fixedly attached to the left and right vertical wire frames 4 via C-links 19 and covered, and the back board 17 is engaged with the back side. Piece 18
The seat back 1 is formed by being engaged with the horizontal wire frames 3a and 3b via a and 18b.

[0007]

However, in the structure of the conventional seat back 1, the vertical wire frame 4 may be an obstacle when the back board 17 is attached.
Further, there is a problem that the operation of the torsion bar 6 of the lumbar support 5 may be interfered with, and if it is attempted to avoid this, there is a problem that the back surface shape of the seat back cushion 7 becomes complicated and the manufacturing cost of the molding die becomes expensive. The present invention has been made to solve the above-mentioned conventional problems, and eliminates the vertical wire frame attached to the seat back frame to eliminate the inconvenient predisposition, and is also used for suspending the front and back of the seat back cover. It is an object of the present invention to provide a seat cover hanging structure capable of achieving the following.

[0008]

In order to solve the above technical problems, the present invention attaches a seat back cushion pad to a seat back frame in a wrapping manner, and covers the seat back cover with the seat back cover. In the seat with a backboard in which the terminal side of the seat back cover is pulled in and fixed to the back side of the seat back frame and is shielded by a back boat on the back side, the backrest portion of the seat back cushion pad and the left and right sides thereof are formed. The insert wire, which is insert-molded along the hanging groove that is vertically recessed between the raised portion and the ridge, is inserted through the straight portion along the hanging groove and the back side from a predetermined position above and below the hanging groove. A bent portion protruding along the slit-shaped insertion hole is formed, and the front surface side of the seat back cover is slid above the hanging groove. By suspending and fixing to the rate part, the upper and lower frames of the seat back are drawn and fixed to the horizontal wire frame of the seat back frame, and the left and right frames are drawn and fixed to the bent part of the insert wire. Inconveniences caused by the conventional vertical wire frame can be eliminated, the workability of attaching the backboard 33 is improved, the operation of the lumbar support is facilitated, and the back surface shape of the cushion pad 27 is simplified. can do.

[0009]

1 is an exploded perspective view of a seatback 21, FIG.
3 is a perspective view of the seat back cushion pad 27, FIG. 3 is a longitudinal sectional view of the seat back 21, FIG. 4 is a sectional view taken along the line AA of FIG. 3, and FIG. 5 is a sectional view taken along the line BB of FIG. The seat back 21 is composed of a seat back frame 22, a seat back cushion pad 27, a seat back cover 32, and a back board 33 as in the conventional case, and the seat back frame 22 is made of a pipe material as in the conventional case. A rectangular frame is formed, and a crank-shaped horizontal wire frame 23 is provided at a predetermined position on the upper side between the left and right frames, and a plurality of straight wire frames 24 are horizontally provided on the lower side. Further, a lumbar support 25 is attached via a torsion bar 26 at a predetermined position below the central portion between the left and right frames.

In addition, the seat back cushion pad 27
Is formed by foaming a urethane material, and is formed into a shape capable of enclosing the seat back frame 22 as in the conventional case. As shown in FIGS. 4 and 5, the central backrest portion 28 has raised portions on the left and right sides. A portion 29 is formed, and a suspending groove 30 of the seat cover 32 is provided in a partition portion between the backrest portion 28 and the left and right raised portions 29, and an insert wire for suspending along the suspending groove 30. 31 is insert-molded. The insert wire 31 has a substantially U-shaped bent portion 31b formed at a predetermined position above and below the insert wire 31, and the straight portion 31a of the insert wire 31 has a hanging groove 30.
Insert-molded into a position close to the
At the bent portion 31b, the hanging groove 30 is formed with a slit-shaped insertion hole 30a penetrating to the back surface side.
The piece 31c of 1b is exposed on the back side of the cushion pad 27.

As in the conventional case, the seat back cover 32 is formed by sewing a plurality of skin pieces so as to cover the seat back cushion pad 27, and the hanging bag 14a is provided at the upper and lower ends of the cloth 13a. The hanging wire 15 is formed and inserted, and the hanging bag 14b is also formed on the left and right sashes 13b, and the hanging wire 15 is inserted. In addition, the hanging bag 1 is also attached to the sewing portion that follows the hanging groove 30.
6 is formed, and the hanging wire 15 is also inserted through the hanging bag 16.

Further, the backboard 33 is formed in a substantially rectangular shape so as to shield the back side of the seatback 21 as in the conventional case, and the crank-shaped horizontal wire frame 23 is formed on the inner surface thereof.
And an engaging piece 18b engaging with the straight horizontal wire frame 24 is formed on the lower side.

A seat back cushion pad 27 is attached to the seat back frame 22 formed as described above in an enclosing manner, and a seat back cover 32 is covered with the seat back cushion pad 27. At the time of covering the seat back cover 32, the hanging bag 16 is fitted along the hanging groove 30 and the hanging wire 15 inserted into the hanging bag 16 is the insert wire 31 insert-molded in the seat back cushion pad 27. It is fixed to the straight portion 31a in a hanging manner via a plurality of C links 19. Then, the upper and lower frame cloths 13a are drawn to the back side of the seat back frame 22 and the hanging wires 15 inserted into the hanging bag 14a are fixed to the upper and lower horizontal wire frames 23 and 24 via the C-link 19, and The left and right frames 13b are also pulled into the back side of the seatback frame 22 and inserted into the hanging bag 14b. The hanging wire 15 is inserted into the cushion pad 27.
It is exposed from the back side and is fixed to the piece 31c of the bent portion 31b via the C-link 19 and covered.
On the back side, the backboard 33 is provided with the engaging pieces 18a, 18
The seat back 21 is formed by being engaged with the horizontal wire frames 23, 24 via b.

The insert wire 31 insert-molded along the left and right suspension grooves 30 recessed in the cushion pad 27 as described above is embedded in the straight portion 31a close to the bottom side of the suspension groove 30 and the suspension groove 31a. A bent portion 31b exposed from the predetermined position of 30 to the back side of the slit-shaped insertion hole 30a penetrating to the back side of the cushion pad 27 is formed, and the front surface side of the seat back cover 32 is hung on the straight portion 31a. Since the left and right cloth 13b sides are hung on the bent portions 31b and the front and back sides are hung and fixed on the left and right insert wires 31, respectively, which is also used as a conventional vertical wire frame. When the inconvenience can be eliminated, the workability of attaching the backboard 33 is improved, and the operation of the lumbar support is smoothed. Moni, a back surface shape of the cushion pad 27 can be simplified.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a seat back.

FIG. 2 is a perspective view of a seat back cushion pad.

FIG. 3 is a vertical sectional view of a seat back.

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

FIG. 5 is a sectional view taken along line BB of FIG. 3;

FIG. 6 is an exploded perspective view of a conventional seat back.

FIG. 7 is a perspective view of a conventional seat back cushion pad.

FIG. 8 is a vertical cross-sectional view of a conventional seat back.

FIG. 9 is a sectional view taken along line AA of FIG. 8;

[Explanation of symbols]

 21 seat back 22 seat back frame 23, 24 horizontal wire frame 27 seat back cushion pad 28 backrest portion 29 raised portion 30 suspension groove 30a insertion hole 31 insert wire 31a straight portion 31b bent portion 32 seat back cover 13a upper and lower cloth 13b Left and right frame 33 backboard

Claims (1)

[Claims] 1. A seat back cushion pad is attached to a seat back frame in a wrapping manner, and a seat back cover is covered on the seat back cushion pad so that a terminal side of the seat back cover faces a back side of the seat back frame. A seat with a backboard that is fixed in the retracted position and is shielded by a back boat on the back side of the seat back cushion pad that is vertically recessed between the backrest portion and the raised portions formed on the left and right sides of the backrest portion. The insert wire insert-molded along the groove has a straight portion along the hanging groove and a bent portion protruding along a slit-shaped insertion hole penetrating to the back side from a predetermined position above and below the hanging groove. The front side of the seat back cover is hung and fixed to the straight portion through the hanging groove, and Vertical stile cloth bar is fixed hanging beside wireframe of the seat back frame,
The right and left sashes have a structure in which the seat cover is hung on the back boat with the structure in which it is hung and fixed on the bent part of the insert wire.