JP2002233430A - Seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly economical seat for a vehicle for which a skin material composed of a bulky woven and knitted fabric with three-dimensional structure is curved in vertical and horizontal direction matched with the curve of a seat frame to spread it, the danger of generating slack is eliminated without the hold of the locking member of a hook member or the like, the skin material is sufficiently stretched, the desired shape of the skin material is given, an appearance is improved, a cushion property, a touch, and a sitting feeling are improved, and assembly work efficiency is improved. SOLUTION: A wire 17 is disposed with an appropriate interval from a seat frame 15. The wire 17 is bent to the side of getting closer to each other at both ends of a welding part 17a of the wire 17. A locking part 17b of the wire 17 is formed in a continuous state with the appropriate interval from the seat frame 15. The surface material 25 is formed of the woven and knitted fabric with three-dimensional structure having a front surface base cloth 26 and a back surface base cloth 27 composed of surface and back woven and knitted fabric and an elastic intermediate layer 28 integrally woven and knitted with the front and back base clothes 26 and 27. A locking member 18 is fixed to the end part of the skin material 25 and the locking member 18 is locked to the locking part 17b of the wire 17 in the continuous state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat, and more particularly to a vehicle seat having a seat frame and a skin material attached to the seat frame.

[0002]

2. Description of the Related Art Normally, a vehicle seat or the like is formed of a seat frame, a pad material placed on the seat frame, and a skin material covering the seat frame and the pad material. In recent years, in order to improve the air permeability and reduce the weight of a vehicle seat, a vehicle seat in which a net formed in a mesh shape on a seat frame is attached to the seat frame while being pulled by a predetermined tension (Japanese Patent Application Laid-Open No. H10-163873). 2000
-79840) has been proposed.

Further, as shown in FIG. 4, in order to reduce the weight of the vehicle seat 1, a pad material is omitted, and a seat cushion 2 in which a skin material 5 is merely stretched on a seat frame 4 such as a pipe frame is provided. There is also a vehicle seat 1 including a seat back 3, but lacks cushioning. Japanese Patent Application Laid-Open No. Hei 6-57579 discloses a multi-layer structure woven fabric comprising a double-sided double-sided base fabric by a double raschel loom or the like, and a bulky woven knitted fabric having a thickness of 5 mm or more made of connecting yarns connecting the front and back double-sided base fabrics. A knit is disclosed.

In this vehicle seat 1, when a skin material 5 made of a bulky three-dimensional structure woven or knitted fabric is attached to a seat frame 4 such as a pipe frame, FIGS. 3 (a) and 3 (b).
As shown in FIG. 2, a wire 7 for locking is fixed to the seat frame 4 by welding or the like, a hook member 8 made of a J hook or the like is attached to an end of the skin material 5, and a wire for locking attached to the seat frame 4 is provided. A hook member 8 and the like are locked to and attached to 7.

[0005]

SUMMARY OF THE INVENTION Conventional vehicle seat 1
In the case where the skin material 5 made of a bulky three-dimensional structure woven or knitted fabric is attached to the substantially square frame-shaped seat frame 4, it is desirable that the end of the skin material 5 is not pulled with a large tensile force along the seat frame 4. , The appearance was deteriorated, and the cushioning property was impaired. For this reason, as shown in FIG. 3 (a), the wire 7 to be welded to the seat frame 4 is formed with a locking portion 7b from the welding portion 7a at an appropriate interval L1 from the welding portion 7a to the welding portion 7a. There is no locking portion 7b of the wire 7 by the length corresponding to the length L2, and the hook member 8 at the end of the skin material 5 is not locked by the locking portion 7b of the wire 7, and the hook member 8, the skin material 5 cannot be pulled sufficiently, the skin material 5 cannot be sufficiently drawn, the desired shape cannot be formed on the skin material 5, the sitting comfort is poor, and the cushioning property and touch feeling are lacking. Was.

SUMMARY OF THE INVENTION It is an object of the present invention to be able to stretch a skin material made of a bulky three-dimensional structure woven or knitted fabric by bending it up and down and left and right in accordance with the curvature of a seat frame. There is no risk of slack due to no catching, the skin material can be sufficiently pulled, the desired shape can be formed on the skin material, the appearance can be improved, and the cushioning property, touch feeling and sitting comfort can be improved. It is an object of the present invention to provide a vehicle seat which can be mounted and which can improve the assembling work efficiency and is excellent in economic efficiency.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a vehicle seat according to a first aspect of the present invention has a seat frame and a skin material attached to the seat frame. In a vehicle seat including: a wire is welded at an appropriate interval and an appropriate length along the seat frame, and the wires are disposed at an appropriate interval from the seat frame except for a welded portion of the wire. At both ends of the welded portion of the wire, the wire is bent toward the side adjacent to each other, and the skin material has a surface base cloth and a back base cloth made of woven and knitted fabric on the front and back, and is integrally formed with the base cloth on the front and back. A three-dimensional structure woven or knitted fabric having an elastic intermediate layer woven and knitted; a locking member is fixed to an end portion of a skin material made of the three-dimensional structure woven or knitted material; Stop And wherein the are.

According to a second aspect of the present invention, there is provided a vehicle seat including a seat frame and a skin material attached to the seat frame, wherein wires are provided at appropriate intervals along the seat frame. It is welded at an appropriate length, the wire is disposed at an appropriate distance from the seat frame except for the welded portion of the wire, and the wires are bent to the side closer to each other at both ends of the welded portion of the wire, An engaging portion of the wire is formed along the seat frame in a continuous state at an appropriate interval from the seat frame, and the skin material includes a front base fabric and a back base fabric made of a woven and knitted fabric, and the front and back base fabrics are provided. A three-dimensional structure woven or knitted fabric having a resilient intermediate layer woven and knitted integrally with the cloth; a locking member is fixed to an end of a skin material made of the three-dimensional structure woven or knitted fabric; Member is characterized in that it is locked in a continuous state with the engagement portion of the wire.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a vehicle seat according to the present invention will be described in detail with reference to the drawings. Figure 1
2A and 2B show a vehicle seat according to the present invention, respectively. FIG. 1A is a partial explanatory view of a side frame of a seat back, and FIG. FIG. 2 is a perspective view of a sheet, and FIG. 2 is a partial cross-sectional perspective view of a skin material made of a three-dimensional woven or knitted fabric. In the present embodiment, the case where the present invention is applied to a seat back will be described. However, the present invention can be similarly applied to a seat cushion.

As shown in FIG. 1B, a vehicle seat 11 is provided.
Is provided with a seat cushion 12 and a seat back 13. The seat back 13 has a seat frame 15 formed in a substantially inverted U-shape or a substantially square frame shape.
5 is formed of a pipe frame in the present embodiment, but may be formed of a magnesium alloy or the like by die casting.

Along the longitudinal direction of the seat frame 15, locking wires 17 are welded at L2 at appropriate intervals and at appropriate lengths to form welded portions 17a.
Except for the welded portion 17a of the wire 17, the wire 17
Are disposed at an appropriate distance L1 from the seat frame 15, and a locking portion 17b is formed at an appropriate distance L1.

At both ends of the welded portion 17a of the wire 17, the wire 17 is bent toward the side close to each other.
7c, 17c are formed and extend from the refraction portions 17c, 17c at appropriate intervals to a position where they come into contact with each other,
The bending portions 17d, 17d are formed in the contact state, and the bending portions 17d, 17d are connected to the seat frame 15 and the wires 17d.
Is formed at a position where an interval L1 is formed. In addition, it is bent so as to extend along the longitudinal direction of the seat frame 15 in a direction away from each other at the bending portions 17d, 17d from positions where they are in contact with each other.

An engaging portion 17b is formed along the longitudinal direction of the seat frame 15 by a bending portion 17d of the wire 17 so as to be continuous with the seat frame 15 at an appropriate distance L1. Also, the welding portion 17 of the wire 17
a and refraction parts 17c, 17c, refraction parts 17d, 17d
The plurality of locking portions 17b can be formed continuously at appropriate intervals. In this embodiment, the wire 1
Although the bending portions 17d, 17d of the wire 17 are in contact with each other, they may be slightly separated from each other.
d may be welded together.

The seat back 13 has a skin material 25 which is stretched on the seat frame 15 in the vertical and horizontal directions. As shown in FIG. 2, the skin material 25 includes a front base cloth 26 and a back base cloth 27 made of woven and knitted fabric on the front and back sides.
And a three-dimensional structure woven / knitted fabric having the front and back base fabrics 26 and 27 and an elastic middle layer 28 woven and knitted integrally.

The skin material 25 made of the three-dimensional woven or knitted fabric can be formed from synthetic resin fibers such as nylon, and the elasticity and tensile strength can be variously obtained depending on the thickness of the yarn filament. Can be formed to a thickness of 5 mm or more. The skin material 25 made of the three-dimensional woven or knitted fabric can be manufactured by a double Russell knitting machine or the like. The surface base cloth 26 of the skin material 25 can be knitted in a net shape. For a more detailed configuration of the three-dimensional woven or knitted fabric, the technique of Japanese Patent Application Laid-Open No. 6-57579 shown in the related art is used.

The skin material 25 made of the three-dimensionally structured woven or knitted fabric is pulled up and down and left and right, and
Terminal processing. That is, as shown by an imaginary line in FIG. 1A, a locking member 18 such as a band-shaped J hook having a substantially J-shaped cross section is fixed to the end of the skin material 25, and the locking member 18 The wire 17 is locked by the locking portion 17b.

Since the locking portion 17b of the wire 17 is formed continuously by the bending portions 17c, 17c and the bending portions 17d, 17d, the locking member 1 made of a J hook or the like is used.
8 is continuously locked to the locking portion 17b of the wire 17.

[0018]

The above is an embodiment of the vehicle seat according to the present invention. According to the vehicle seat according to the first aspect of the present invention, the wires are arranged at appropriate intervals along the seat frame. It is welded at an appropriate length, the wire is disposed at an appropriate distance from the seat frame except for the welded portion of the wire, and the wires are bent to the side closer to each other at both ends of the welded portion of the wire, The skin material is formed from a three-dimensional structure woven / knitted fabric having a front base fabric and a back base fabric made of front and back woven and knitted fabrics, and having an elastic intermediate layer woven and knitted integrally with the front and back woven fabrics. Since a locking member is fixed to an end portion of the skin material made of the three-dimensional structure woven or knitted material, and the locking member is locked to the wire, the wire is bent to the side close to each other. The stop increases,
The locking member at the end of the skin material formed from the three-dimensional structure woven or knitted material can be firmly locked, the skin material can be sufficiently pulled, the desired shape can be formed on the skin material, and the appearance can be improved. It is possible to improve the cushioning property, the touch feeling, and the sitting comfort, and to improve the assembling work efficiency.

According to the vehicle seat of the second aspect of the present invention, the wires are welded at appropriate intervals and at appropriate lengths along the seat frame, and the wires are removed except for the welded portions of the wires. Are disposed at an appropriate distance from the seat frame, and the wires are bent toward the mutually adjoining sides at both ends of the welded portion of the wire, and the locking portions of the wire are arranged at an appropriate distance from the seat frame along the seat frame. In the continuous state, the skin material has a surface base fabric and a back base fabric made of woven and knitted fabric on the front and back, and has an elastic intermediate layer woven and knitted integrally with the base fabric on the front and back. Since the locking member is fixed to the end portion of the skin material formed of the three-dimensional structure woven or knitted fabric and the three-dimensional structure woven or knitted material, and the locking member is continuously locked to the locking portion of the wire, From three-dimensional woven or knitted fabric The locking member at the end of the formed skin material can be firmly locked to the continuous locking portion, the skin material can be sufficiently pulled, the desired shape can be formed on the skin material, and the appearance can be obtained. Can be improved, the cushioning property, the feel, and the sitting comfort can be improved, and the assembling work efficiency can be improved.

According to the vehicle seat of the present invention, a skin material made of a bulky three-dimensional structure woven or knitted material can be stretched up and down and right and left in accordance with the curvature of the seat frame, and can be extended. There is no danger that the locking member is caught and there is no danger of sagging, the skin material can be sufficiently pulled, the skin material can be formed in a desired shape, the appearance can be improved, and the cushioning property and touch feeling and It is possible to obtain a highly economical vehicle seat that can improve the sitting comfort and improve the assembly work efficiency.

[Brief description of the drawings]

FIG. 1 shows a vehicle seat according to the present invention,
(A) is a partial explanatory view of a side frame of a seat back,
(B) is a perspective view of a vehicle seat.

FIG. 2 is a partial perspective view of a skin material formed of a three-dimensional woven or knitted fabric for a vehicle seat according to the present invention.

3A and 3B show a conventional vehicle seat, wherein FIG. 3A is a partial explanatory view of a side frame of a seat back, and FIG. 3B is a partial sectional view of the side frame.

FIG. 4 is a perspective view of a conventional vehicle seat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Vehicle seat 12 Seat cushion 13 Seat back 15 Seat frame 17 Wire 17a Welding part 17b Locking part 17c Bending part 17d Bending part 18 Hook member 25 Skin material 26 Surface base cloth 27 Back base cloth 28 Intermediate layer

Claims (2)

[Claims] 1. A vehicle seat having a seat frame and a skin material attached to the seat frame, wherein wires are welded at appropriate intervals and lengths along the seat frame, and the wires are welded. The wire is disposed at an appropriate distance from the seat frame except for the portion, and the wire is bent to the side close to each other at both ends of the welded portion of the wire, and the skin material is a surface base made of a front and back woven or knitted fabric. An end of a skin material formed of a three-dimensional structure woven or knitted fabric having a cloth and a back surface base fabric, and having an elastic intermediate layer woven and knitted integrally with the front and back base fabrics, and made of the three-dimensional structure woven or knitted fabric A locking member is fixed to the portion, and the locking member is locked to the wire. 2. A vehicle seat including a seat frame and a skin material attached to the seat frame, wherein wires are welded at appropriate intervals and at appropriate lengths along the seat frame, and the wires are welded. The wire is disposed at an appropriate distance from the seat frame except for the portion, and the wire is bent toward the mutually adjacent side at both ends of the welded portion of the wire, and the locking portion of the wire along the seat frame becomes a sheet. It is formed in a continuous state at an appropriate interval with the frame, and the skin material has a surface base cloth and a back base cloth made of a front and back woven knitted fabric, and has elasticity woven and knitted integrally with the front and back base cloths. And a locking member fixed to an end portion of a skin material made of the three-dimensional structure woven or knitted fabric, the locking member being continuous with the locking portion of the wire. Vehicle seat characterized in that it is locked.