JP2570913Y2 - Seat back suspension structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for hanging a skin of a seat back of a vehicle seat such as an automobile, and more particularly to a structure of hanging a vertical hanging line portion of a skin of a seat back.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show a seat back 1 for a vehicle seat such as an automobile. This seat back 1 covers a frame 2 with a pad 3 integrally foamed into a required shape,
Further, the outer surface of the pad 3 is covered with a skin 4.

The outer skin 4 is three-dimensionally cut and sewn in accordance with the shape of the pad 3, and has a center portion 4a having a substantially flat front portion and a side portion 4b projecting forward from the left and right to serve as a side support. , 4b and an upper part 4c disposed on the upper side of the parts, 4a to 4b.
The horizontal suspension line portion A, which is a stitching portion between the center portion 4a and the upper portion 4c, and the center portion 4a and the left and right side portions 4b so that c is fitted without sagging or wrinkling along the front surface of the pad 3. , 4b are suspended from the vertical suspension line portions B, B and are recessed.

In order to suspend the skin 4, a wire 5 is first provided in the upper part of the pad 3 by integral foam molding, and a back surface of a seam portion between the center portion 4a and the upper portion 4c of the skin 4 is formed. The hanging wire 6 is provided so as to pass through the horizontally long bag portion, and the hanging wire 6 is hung on the upper wire 5 while being pulled inward by the plurality of C-rings (hogrimbs) 7 serving as locking members. Stop it. Thus, the lateral suspension line portion A of the skin 4 is suspended.

In the same manner as described above, the wire 8 is also provided in advance in the lower portion of the pad 3 by integral foaming molding, and the wire 8 is vertically elongated on the back surface of the seam between the center portion 4a of the skin 4 and the left and right side portions 4b, 4b. The bag-shaped hanging canvas 9 is sewn. Then, a pair of left and right rubber bands 10 whose upper ends are connected to the upper hanging wires 6 are inserted one by one into the left and right hanging canvases 9 and penetrate downward, and the lower ends of the rubber bands 10 are respectively pulled downward. And is hooked on the lower wire 8 by a C-ring 11 serving as a stopper. Thus, the left and right vertical suspension line portions B, B of the skin 4 are suspended.

FIGS. 9 and 10 show another conventional example of the skin suspension structure. Here, the suspension of the lateral suspension line portion A of the skin 4 is the same as that described above.
Are suspended using a pair of female and male hook-and-loop fasteners (Velcro) 12, 13. That is, longitudinal female hook-and-loop fasteners 12 are provided in advance on the left and right sides of the front surface of the pad 3 by integral foam molding, respectively, and corresponding to these, a vertical male hook-and-loop is provided on the center 4a of the back surface of the skin 4 on the left and right sides. When the surface fastener 13 is fastened and fixed by sewing or the like, and the pad 4 is covered with the skin 4, the male surface fastener 13 is superimposed on the female surface fastener 12 so as to be locked. Left and right vertical suspension lines B, B
Is suspended.

[0007]

However, in the above-described conventional skin suspension structure, defects can easily occur in the suspension of the left and right vertical suspension lines B, B of the skin 4, and the cost is increased. There is a problem to invite.

That is, in the former skin hanging structure shown in FIGS. 5 to 8, a vertically long bag-shaped hanging canvas 9 is sewn on the back surface of the skin 4, and a rubber band 10 is pierced through this. 4 left and right vertical suspension line parts B,
Since B is hung, the number of parts is large and the assembling work is troublesome, resulting in high cost. In addition, since the suspension amount of the skin 4 is adjusted by the allowance for pulling the rubber band 10, the stability of the skin 4 is hardly obtained, and the skin 4 is easily sagged and wrinkled, which is likely to cause a product defect.

[0009] In the latter structure of hanging the skin shown in Figs. 9 and 10, since the female and male hook-and-loop fasteners 12 and 13 are used, the material cost is high and the cost is increased, and the female and male hook-and-loop fasteners 12 and 13 are used. 13 is unstable and shifts, and it is difficult to obtain stability of the skin 4, and sagging and wrinkling occur on the skin 4, which is likely to cause a product defect.

[0010] The present invention has been made in view of the above-mentioned circumstances, and its purpose is to reduce the number of parts used and the material cost easily.
In addition to cost reduction, the amount of suspension in the vertical suspension line section of the skin is stable,
An object of the present invention is to provide a seat back suspension structure in which wrinkles and the like do not occur and product defects can be eliminated.

[0011]

In order to achieve the above object, a structure for suspending a skin of a seat back according to the present invention is provided on a back surface of a vertical suspension line portion of a skin covered on a pad of a seat back of a seat. The hanging strap is sewn continuously for an appropriate length in the longitudinal direction, and the lower end of the hanging strap is pulled downward to be hooked to a wire at a lower portion inside the pad by a locking tool. I do.

[0012]

According to the structure for hanging a skin of a seat back having the above structure, a simple hanging sash such as a canvas is sewn on the back surface of a vertical hanging line portion of the skin in the longitudinal direction, and this hanging is performed. Since it is only necessary to pull the lower end of the belt cloth downward and hook it to the wire inside the pad with the locking tool,
The number of parts used is small and the material cost is easy. In addition, since the hanging strap does not expand and contract like a rubber belt, the pulling margin is stable and there is no displacement like a female or male hook-and-loop fastener, and the hanging amount of the vertical hanging line part of the skin is stable. As a result, the displacement of the epidermis, sagging, wrinkles, etc. do not occur.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a seat back suspension structure for a seat back according to the present invention will be described with reference to FIGS. In addition,
In the figure, the same components as those shown in FIGS. 5 to 10 are denoted by the same reference numerals, and the description is simplified.

First, the horizontal suspension line portion A above the skin 4 is suspended in the center portion 4 of the skin 4 as in the prior art.
The hanging wire 6 inserted into the horizontally long bag portion on the back surface of the stitched portion between the upper portion 4a and a plurality of
The ring (hog rim) 7 is used to hold the wire 5 buried in the upper part of the pad 3.

On the other hand, as a structure for suspending the left and right vertical suspension lines B, B of the skin 4, a wire 8 is provided in advance in the lower portion of the pad 3 by integral foam molding, and
On the back surface of the vertical hanging line portions B, B, which are seams between the center portion 4a of the skin 4 and the left and right side portions 4b, 4b, a hanging strap 15 is continuously extended for an appropriate length in the longitudinal direction. Sewing is performed with a sewing thread 16. The hanging cloth 15 is a simple cloth such as a canvas cloth, and has a folded loop portion 15a at its lower end. The lower loop portion 15a of the hanging bandage 15 is pulled downward and hooked to the wire 8 in the lower part of the pad 3 by the C ring 11 as a locking tool, and the left and right vertical hanging lines of the outer skin 4 are drawn. The parts B, B are suspended.

The skin 4 is of a soft touch quilting type. As shown in FIG. 2, a skin 43 is layered on a base cloth 41 via a wading 42 made of urethane or the like.

In the case of the skin hanging structure having such a structure, a simple hanging band cloth 15 such as a canvas is sewn to the back surface of the skin 4 over a suitable length in the longitudinal direction as described above. Pull the lower end loop portion 15a of C
Since the left and right vertical suspension lines B, B of the skin 4 are suspended only by being hooked on the wire 8 in the lower part of the pad 4 by the ring 11, the number of parts used is small and the material cost is easy. The cost can be reduced.
In addition, since the hanging strap 15 does not expand and contract like a rubber belt, the pulling margin is stabilized, and there is no displacement as in the case of female and male hook-and-loop fasteners. The amount of suspension is stable, and the displacement of the skin, sagging, wrinkles, etc. do not occur.

[0018]

[Effect of the Invention] The structure for suspending the skin of the seat back according to the present invention is configured as described above, so that the number of parts used is small, the material cost is easy, the cost can be reduced, and the vertical suspension line portion of the skin is suspended. The stuck amount is stable, the skin is not displaced, sagging, wrinkles, etc. do not occur, and the effect of eliminating defective products can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a seat back suspension structure of a seat back according to the present invention.

FIG. 2A is a partial sectional view taken along the line II in FIG. 1;
FIG. 2B is a partial cross-sectional view along the roll line in FIG. 1.

FIG. 3 is a perspective view of the embodiment.

FIG. 4 is a cross-sectional view taken along the line c-a of FIG. 3;

FIG. 5 is a perspective view of a seat back showing a conventional example.

FIG. 6 is a cross-sectional view taken along the line II-II in FIG. 5;

FIG. 7 is a longitudinal sectional view of the conventional example.

FIG. 8 is a partial cross-sectional view along a ho-ho line of FIG. 7;

FIG. 9 is a perspective view of a seat back showing another conventional example.

FIG. 10 is a sectional view taken along the line F-F in FIG. 9;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Seat back, 3 ... Pad, 4 ... Skin, 8 ... Wire, 11 ... Locking device (C-ring), 15 ... Hanging bandage,
B: Vertical hanging line section of the skin.

Claims (1)

(57) [Scope of request for utility model registration] 1. A hanging sewn cloth is sewn over an appropriate length continuously in the longitudinal direction on the back surface of a vertical hanging line portion of a skin placed on a pad of a seat back of a seat, and the hanging is performed. A seat back suspension structure, wherein a lower end of a belt cloth is pulled downward and is hooked to a wire in a lower part of a pad by a locking tool.