JP2004321661A - Trim cover end treatment structure of car seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply and easily fix the end of an extension part of a trim cover forming the back of a seat back without forming wrinkles or looseness in the extension part in a car seat with the extension part covering the back of a lower fixed object fixed below the seat back. <P>SOLUTION: The trim cover of the car seat has a synthetic resin shape-retaining material 11 integrally formed on the inner side of the extension part 1. A slit is formed in part of the shape-retaining material to form a hook part 12. One end of a rubber string 20 is fixed to the lower fixed object 3, and the other end of the rubber string is hooked on the hook part 12. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a trim cover terminal processing structure constituting a back surface of a seat back in an automobile seat.
[0002]
[Prior art]
The seat back is attached to the upper part of the base member so that it can be tilted in the front-rear direction by the reclining device, and the upper part of the seat cushion can be flipped up or down in the seat back direction. Some are attached to a base member.
[0003]
The so-called tip-up type seat, in which the other end of the seat cushion is pivotally attached to the base member and the upper part of the seat cushion is mounted so that the upper portion of the seat cushion can be flipped up about the pivot portion, is located behind the seat cushion and below the seat back. A reinforcement member for connecting the left and right base members and attaching a seat belt anchor to the base member is erected, and the reinforcement member is covered with a foam cushion material, and the cushion material is used for a seat cushion and a seat back. It is covered with the same skin material as the trim cover.
[0004]
What consists of this reinforcement member, a cushion body, and a skin material is made into a lower fixed object. The lower fixed object is fixed to the base member, and the seat back is tilted forward and backward by the reclining device, so that a gap is generated between the seat back and the lower fixed object.
[0005]
[Problems to be solved by the invention]
The gap created between the seat back and the lower fixed object is visible from the front and the rear of the seat, and the appearance quality of the seat is impaired.
In particular, the gap seen from the rear seat side not only impairs the appearance quality, but also has a problem that a foot of a rear seat occupant is inserted.
[0006]
Therefore, the gap seen from the rear seat side is covered with a covering cloth sewn to a trim cover constituting the back surface of the seat back.
[0007]
The end of the covering cloth is fixed to a trim wire provided on the lower fixing object by a hog ring or the like.
Further, there is a type in which a hook is sewn to an end of the covering cloth and the hook is hooked on the trim wire or the like (see Patent Document 1).
[0008]
[Patent Document 1] JP-A-6-304349
However, according to the conventional coated cloth terminal treatment structure, when the seat back is tilted back and forth, the coated cloth is wrinkled and sagged, and a defect that the terminal of the coated cloth cannot be fixed easily and easily. there were.
[0010]
Therefore, an object of the present invention is to eliminate such disadvantages of the conventional product.
[0011]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION The present invention for achieving the above object provides a seat back of an automobile seat pivotally attached to a base member so as to be tiltable in the front-rear direction. An extended portion for covering the back surface of the lower fixed object fixed to the base member is extended, and a shape-retaining material made of a rigid synthetic resin film or sheet is integrally provided inside the extended portion. A hook is formed in the shape member by forming a slit in a part thereof, while one end of a rubber cord is attached to the lower fixed object, and the other end of the rubber cord is hooked to the hook. By doing so, the extension portion is stretched.
[0012]
With the above configuration, the extending portion is always pulled by the elasticity of the rubber string, and wrinkles and sagging do not occur due to the shape retaining material provided inside.
[0013]
In addition, since a retaining part for retaining the rubber cord is provided in a part of the shape-retaining material, it is not necessary to separately provide a retaining member on the extending part side, and the rubber cord can be easily attached to the retaining part. And it can be hooked easily.
[0014]
Also, by forming the central part or the upper part in the vertical direction of the shape-retaining material in a bulging shape outward, the extended portion does not generate wrinkles or sagging due to the elasticity of the shape-retaining material itself. .
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows an automobile seat provided with a structure according to the present invention. In the figure, SC is a seat cushion, SB is a seat back mounted to be tiltable in the front-rear direction by a reclining device (not shown), C is a reclining device and the like. The resin covers to be coated are shown.
[0016]
The rear surface of the seat back SB is covered with a trim cover B in the same manner as the front seating surface, and a pocket P is formed below the trim cover B. The pocket P is formed of the same member as the trim cover B. The trim cover 50A is formed of a cover 50A and a backing material 50B. The trim cover 50A is sewn around four edges except an upper edge thereof to form a pocket. Therefore, since the upper edge of the trim cover 50A is not sewn to the backing material 50B or the trim cover B, this portion becomes an opening of the pocket.
[0017]
An extended portion 1 is extended from the lower end of the trim cover 50A, and the extended portion 1 is constantly tensioned downward by the elastic force of a pair of left and right rubber cords 20, 20 having one end fixed to the lower fixed object 3. Has been added.
[0018]
In FIG. 1, T indicates a table, 10A indicates a sewing line sewn to the backing material 50B along the lower edge of the trim cover 50A or the upper edge of the extension 1.
[0019]
As shown in FIG. 2, the above seat back SB is mounted via a reclining device on the rear side of a base member 5 such as a frame fastened directly or via a slide rail to the vehicle floor side.
[0020]
As shown in FIG. 2, the seat cushion SC has its rear side pivotally mounted on the base member 5 so as to be rotatable, its front part can be moved up and down, and its front part is pivoted about the shaft mounting part. It is formed so as to be able to jump up in the seatback SB direction.
[0021]
That is, the seat back SB is tiltable, and the seat cushion SC is mounted on the base member 5 so as to be tiltable and tip-up.
[0022]
The lower fixed member 3 is attached to the base member 5 located below the seat back SB and behind the seat cushion SC. The lower fixed member 3 is erected between the left and right base members 5 and fastened to the vehicle floor side, a foam cushion material 31 enclosing the reinforcement member 32, and a skin covering the cushion material 31 An anchor (not shown) of a seat belt is fixed to the reinforcing member 32.
[0023]
One ends of the rubber strings 20, 20 are sewn to the skin material 30 of the lower fixed member 3, and the rubber strings 20, 20 are formed in an annular shape.
[0024]
The rear side of the lower fixed member 3 is covered with the extending portion 1, and the gap between the seat back SB and the rear surfaces of the lower fixed member 3 is also covered with the extending portion 1.
[0025]
Further, the gap a is closed by the hanging cloth 4 sewn on the seat back SB side, and the appearance quality of the seat from the front direction is also improved.
[0026]
The seat back SB has a conventionally well-known structure. In the drawing, reference numeral 50 denotes a trim cover on the seating surface side, 51 denotes a foam pad, 52 denotes a frame, and 53 denotes a spring stretched on the left and right sides of the frame.
[0027]
As described above, the extending portion 1 is extended with the trim cover 50A, and as shown in FIGS. 3 and 4, the inside thereof is made of a rigid synthetic resin film or sheet such as polyester or polypropylene. The shape-retaining material 11 is adhered.
[0028]
As shown in FIG. 5, the shape-retaining material 11 is formed so as to bulge in the direction of the extending portion 1 in which the upper part or the center in the vertical direction is outward. Therefore, the lowermost end 10 </ b> A of the extension portion 1 elastically contacts the lower fixed object 3 by the shape-retaining material 11 and closely adheres to the surface of the lower fixed object 3.
[0029]
In addition, hook portions 12 are provided on the left and right lower portions of the shape retaining material 11 corresponding to the terminals 1A of the extending portions 1 as shown in FIG. That is, the hook portion 12 is formed by cutting out a hook-shaped slit 12A in a part of the shape-retaining material 11.
[0030]
In addition, since the thickness of the shape retaining material 11 is small, the hooking portion 12 is reinforced by integrally forming the protrusion 13 inward.
[0031]
As shown in FIG. 6, the terminal 1 </ b> A of the extending portion 1 is stretched to the lower fixed object 3 by hanging the rubber string 20 on each of the above-described hanging portions 12.
In FIG. 3, reference numerals 21 and 21 in the figure denote sewing threads for sewing the rubber cord 20 to the skin material 30 of the lower fixed object 3.
[0032]
Since the terminal 1A of the extension portion 1 is fixed as described above, the extension portion 1 is always tensioned downward by the elasticity of the rubber cord 20 in the direction of the arrow in FIG. No wrinkling or sagging occurs even when tilted.
[0033]
The rigidity of the shape-retaining material 11 adhered to the inside of the extension 1 causes no wrinkles or slacks.
[0034]
Further, the extension portion 1 has the terminal 1 </ b> A in close contact with the surface of the lower fixed object 3 due to the curved shape of the shape-retaining material 11 provided integrally therewith.
[0035]
【The invention's effect】
According to the first aspect of the present invention, wrinkles and sagging do not occur in the extended portion of the trim cover constituting the lower rear portion of the seat back.
In addition, since a part of the shape-retaining material integrally provided inside the extension portion is used as a hook portion, and a rubber cord having one end attached to a lower fixed object may be hooked to the hook portion, the hook portion is provided. Need not be separately attached, and the work of fixing the terminal of the extension portion can be performed easily and easily.
[0036]
According to the second aspect of the present invention, the terminal of the extended portion elastically contacts the surface of the lower fixed object, and the appearance quality of the back side of the sheet is impaired between the terminal of the extended portion and the surface of the lower fixed object. There is no gap.
[Brief description of the drawings]
FIG. 1 is a perspective view of an automobile seat having a structure according to the present invention.
FIG. 2 is a sectional view of a main part.
FIG. 3 is a cross-sectional view illustrating an attached state of a terminal of an extension portion.
FIG. 4 is a partially cutaway perspective view of an extension portion.
FIG. 5 is a sectional view taken along line VV of FIG. 4;
FIG. 6 is a cross-sectional view showing a state where a rubber string is hooked on a hook.
[Explanation of symbols]
SB Seat back 1 Extended portion 3 Lower fixed object 5 Base member 11 Shape retaining material 12 Hanging portion 20 Rubber cord 50A Trim cover for forming back surface of seat back

Claims (2)

In a seat back of an automobile seat pivotally attached to a base member so as to be tiltable in a front-rear direction,
An extension portion for covering the back surface of the lower fixed object fixed to the base member below the seat back is extended on the trim cover for forming the back surface of the seat back, and a rigid synthetic resin is provided inside the extension portion. Film forming, provided integrally with a shape-retaining material consisting of a sheet, the shape-retaining material is provided with a hook portion formed by inserting a slit in a part thereof,
On the other hand, one end of a rubber string is attached to the lower fixed object, and the other end of the rubber string is hooked to a hook of the extension section to stretch the extension section so that an automobile seat is stretched. Trim cover terminal processing structure. 2. The trim cover terminal treatment structure for an automobile seat according to claim 1, wherein the shape-retaining material is formed so that a central portion or an upper portion of the shape-retaining material bulges outward.

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