JP2005040158A - Seat cover structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent deterioration of the quality of the outer appearance of a seat by inhibiting separation of a pipe part of a piping core material from the surface of the seat. <P>SOLUTION: Terminals of the surfaces of facing materials 13b and 13c are superimposed, and the piping core material 15 is attached in such a way that a strip plate part 15b is located on the terminal side of the facing material 13b. The strip part 15b of the piping core material 15 and the superimposed part of the facing materials 13b and 13c are sewn together, and one facing material 13b is turned back to wrap the piping core material 15 to form a stepped part 18 in the three-dimensionally shaped seat cover structure. The facing materials 13b and 13c are connected near the top of the ball part 15a of the piping core material 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a seat cover sewing structure.
[0002]
[Prior art]
The seat cover that covers the seat back and the seat cushion is provided with a step at the sewn portion of the seat side portion to improve the appearance of the seat. For example, as shown in FIG. 7, a prior art document 1 discloses a seat cover 31 that covers a pad 30, and this seat cover 31 mainly includes skin materials 32 and 33. The skin materials 32 and 33 are superposed on each other, and a bead core member 35 is additionally provided on the back side of the skin member 32, and the belt plate portions 35b of the skin members 32 and 33 and the bead core member 35 are overlapped. The seat cover 31 is formed by forming the stepped portion 38 between the skin materials 32 and 33 by sewing and folding back so that the ball portion 35a of the edge core material 35 is wrapped around the back surface side of the skin material 32.
[0003]
[Prior Document 1]
Japanese Utility Model Publication No. 5-68400 [0004]
[Problems to be solved by the invention]
However, the seat cover 31 is usually made slightly smaller than the outer size of the seat back or the like so as not to cause wrinkles or slack in the seat body. Therefore, when this seat cover 31 is covered on the seat body, a tensile force acts on the sewing location by the repulsive force of the pad material. That is, a tensile force acts on the stitched portion of the bead core material 35 and the skin materials 32 and 33. Then, the ball portion 35a of the bead core member 35 is lifted away from the surface of the skin material 33, and the step portion of the seat cover 31 may meander in an unstable manner. Further, when the seating pressure (load) of the seated person is applied, this tendency becomes more prominent, the stitched portion of the edge core member 35 and the skin members 32 and 33 is exposed, and the seat appearance quality is deteriorated.
[0005]
An object of the present invention is to solve the conventional problems, and an object of the present invention is to prevent the ball portion of the edge core material from being separated from the sheet surface so as not to deteriorate the sheet appearance quality.
[0006]
[Means for Solving the Problems]
The present invention is for achieving the above object, and the invention according to claim 1 is to polymerize the surface terminals of the skin materials and to change the edge core material composed of a ball portion and a belt plate portion into the belt plate portion. Is attached so that it is located on the outer skin material terminal side, and is sewed together with the belt plate portion of the edge core material and the superposed portion of both outer skin materials, and one of the outer skin materials is a ball of the outer edge core material. In the three-dimensional seat cover structure in which the step portion is formed by folding the portion so as to wrap the portion, both the skin materials are combined in the vicinity of the tip of the bead of the bead core member.
As a result, since the ball portion of the edge core material forming the step portion of the seat cover in the seat side portion of the seat main body is prevented from separating the ball portion from the seat surface due to the coupling near the tip of the ball portion, the step portion is Appears stably without meandering, and does not deteriorate the sheet appearance quality.
[0007]
Further, in the invention described in claim 2, an engagement portion is provided on one surface of the belt plate portion of the beaded core material, and is engaged with and fixed to the back surface of the folded skin material. Features.
Thereby, since the strip | belt-plate part of a ball edge core material is integrated with a skin material back surface, the shape of the step part of a seat cover is stabilized. Moreover, since the back surface of the skin material is supported by the band plate portion of the bead core material, wrinkles and slack in the vicinity of the step portion can be absorbed.
[0008]
In the invention described in claim 3, the surface terminals of the skin materials are polymerized, and the belt core portion is composed of a ball core portion and a belt plate portion between the skin materials. It is sandwiched so as to be located on the terminal side, and the strip plate portion of the rim core material and the both skin materials are joined together, and the both skin materials are joined at the front end side of the ball portion of the rim core material. One of the skin materials is folded back from the base point to form a stepped portion.
Thereby, since both skin materials are combined also at the front end side of the ball portion, the ball portion is prevented from separating from the sheet surface, the shape of the step portion of the seat cover can be stabilized, and the texture of the sheet appearance is not deteriorated.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described using a seat cushion of a vehicle seat.
1 is an overall perspective view of the seat body, and FIG. 2 is a cross-sectional view taken along line AA in FIG. The seat body 10 includes a seat cushion 12 and a seat back 11 and is connected by a reclining device 20. The seat cushion 12 includes a frame, a pad material 14 and a cover 13 (not shown).
[0010]
The seat cushion cover 13 is formed in a three-dimensional shape that matches the outer shape of the seat cushion 12 by stitching together a plurality of skin materials made of a top plate skin material 13a, a top plate side skin material 13b, and a stile skin material 13c formed in a predetermined shape. ing. A locking member (not shown) is attached to the lower end of the scab skin 13c for fixing to the frame.
[0011]
Next, the sewing of the top plate side skin material 13b and the hook skin material 13c, which is a feature of the present invention, will be described in detail. Each of the skin materials 13b and 13c is a skin layer 13b1 and 13c1 made of a fabric material or genuine leather on the surface side of the seat, a cushion layer 13b2 and 13c2 made of a thin urethane material, a backing base fabric 13b3 and 13c3 made of a knitted fabric, a nonwoven fabric, etc. Is formed by laminating a material formed by laminating or the like into three layers by a cutting machine. The respective skin materials 13b and 13c are polymerized so that the respective skin layers 13b1 and 13c1 face each other. At that time, the back base fabrics 13b3 and 13c3 of the respective skin materials 13b and 13c appear on the front side and become sewing surfaces.
[0012]
The bead core 15 is attached to the back base fabric 13b3 of the top side skin 13b, which is one of the sewing surfaces of the superposed both skins 13b, 13c. The bead core material 15 is made of a synthetic resin material such as polypropylene, and includes a ball portion 15a having a substantially circular cross section as a tip portion and a belt plate portion 15b having a substantially rectangular cross section to be sewn. The edge of the band plate portion 15b of the edge core 15 and the edge of the top plate side skin material 13b are aligned. Then, the top plate side skin material 13b, the hook skin material 13c, and the bead core material 15 are stitched with a predetermined thread near the boundary between the ball portion 15a and the belt plate portion 15b with a sewing machine (not shown). Then, the first suture line 16 is formed.
[0013]
Next, with the first suture line 16 as a base point, the peripheral edge portion of the scab skin material 13c is folded so that the back base fabric 13c3 side is inward, and is polymerized. Then, the hook skin material 13c and the top plate side skin material 13b including the folded peripheral edge portion are stitched with a predetermined thread in the vicinity of the tip of the ball portion 15a of the rim core material 15 to form the second suture line 17.
[0014]
Then, the top plate side skin material 13b is folded back with the second suture line 17 as a base point so that the back base fabric 13b3 side is inside, and the cover layer 13 is completed so that the skin layer 13b1 is positioned on the outer surface. At this time, the top plate side skin material 13b is in a state of wrapping the ball portion 15a of the rim core material 15, whereby the step portion 18 of the cover 13 is formed.
[0015]
Moreover, since the folding | returning part of the peripheral part of the scab skin material 13c works the function which hold | maintains the ball | bowl part 15a of the ball | bowl core material 15 elastically, the ball | bowl core material 15 is maintained stably.
[0016]
In this way, the bead core material 15 can be used even if a tensile force is generated on the cover 13 by stitching the top plate side skin material 13b and the hook skin material 13c near the tip of the ball portion 15a to form the second suture line 17. The ball portion 15a of the core material 15 is not separated from the sheet surface, and the stepped portion 18 of the cover 13 is stably maintained, and the texture of the sheet appearance design is not deteriorated.
[0017]
Next, FIGS. 3 and 4 show a second embodiment of the present invention.
Since this embodiment is also basically the same configuration as the first embodiment, only features that are characteristic will be described and redundant description will be omitted.
[0018]
In this embodiment, the band plate portion 15b surrounded by the two-dot chain line in FIG. 3 and the back base fabric 13b3 of the top plate side skin material 13b are engaged with each other. .
[0019]
As shown in FIG. 4, the ball edge core 15 is provided with a band plate portion 15b that is eccentric from the center of the ball portion 15a toward the back base fabric 13b3, and on the back base fabric 13b3 side of the band plate portion 15b. A locking portion 15b1 having a plurality of hooks or mushroom-like microprojections is formed. When the cover 13 is formed, the minute projections of the locking portions 15b1 are hooked and locked to the fibers of the back base fabric 13b3 of the top plate side skin material 13b that is folded back so as to wrap the ball core material 15. The folded portion of the plate side skin material 13b can be fixed so as not to float from the pad material 14 side. Therefore, the shape of the step portion 18 of the cover 13 is stabilized. In addition, since the top plate side skin material 13 b is supported by the band plate portion 15 b of the edge core material 15, when the cover 13 is covered with the pad material 14, the band plate portion 15 b of the edge edge core material 15 connects the second suture line 17. It is possible to prevent the direction from changing to the base point, and to maintain the direction of the ball core 15 and to maintain the shape of the stepped portion 18.
[0020]
In addition, although the latching | locking part 15b1 provided in the back base cloth 13b3 side of the ball edge core material 15 was provided in the strip | belt-plate part 15b, you may provide also in the ball | bowl part 15a, and can keep the shape of the step part 18 more. .
[0021]
FIG. 5 shows a third embodiment of the present invention.
[0022]
Since this embodiment is also basically the same configuration as the first embodiment, only features that are characteristic will be described and redundant description will be omitted.
[0023]
When the top plate side skin material 13b and the hook skin material 13c are polymerized and sewed, the edge core material 15 is placed between the top plate side skin material 13b and the hook skin material 13c and the top plate side skin material 13b and the kamachi skin material 13c. And the end edge of the belt plate 15b of the ball core 15 are aligned and sandwiched, and stitched near the boundary between the ball 15a and the belt plate 15b to form the first suture line 20. Next, the top side skin material 13 b and the keratin skin material 13 c are stitched near the tip of the ball portion 15 a of the bead core material 15 to form the second suture line 21. The top cover side skin 13b is folded back in a direction away from the sheet surface with the second suture line 21 as a base point. At this time, the band plate portion 15b and the edge portions of the respective skin materials 13b and 13c are sewn from the edge portion of the top plate side skin material 13b or the kamachi skin material 13c to the back base fabric 13b3 of the top plate side skin material 13b. The worn surface fastener 23 is engaged.
[0024]
The hook-and-loop fastener 23 is provided with an engaging portion having a plurality of hook- or mushroom-shaped minute protrusions (not shown) at one end of the cloth piece.
[0025]
The step portion 18 of the cover 13 configured as described above can maintain a stable shape against a tensile force generated by a seating operation on the seat. Therefore, the appearance quality of the sheet is not deteriorated. Further, the hook and loop fastener 23 can prevent the band plate portion 15b of the edge core member 15 from changing its direction from the second suture line 21 when the cover 13 is put on the pad member 14, and the direction of the edge core member 15 can be prevented. And the shape of the stepped portion 18 can be maintained.
[0026]
FIG. 6 shows a fourth embodiment of the present invention.
[0027]
This embodiment is a modification of the third embodiment, in which the hook-and-loop fastener 24 that is structurally the same as the engaging portion of the hook-and-loop fastener 23 is the first on the back base cloth 13b3 side of the top plate side skin material 13b. It is attached between the suture line 20 and the second suture line 21, and is engaged with the back base fabric 13b3 of the top side skin material 13b folded back at the second suture line 21. Also by this, the same effect as the third embodiment can be obtained.
[0028]
In the third and fourth embodiments, when the top plate side skin material 13b and the hook skin material 13c are polymerized and sewed, the bead core 15 between the top plate side skin material 13b and the hook skin material 13c. Are sandwiched by aligning the edge portions of the top plate side skin material 13b and kamachi skin material 13c with the edge portion of the belt plate portion 15b of the ball core material 15, and stitching near the boundary between the ball portion 15a and the belt plate portion 15b. The first suture line 20 was formed, but after the top plate side skin material surface side and the kamachi skin material surface side were polymerized so as to face each other, the ball was placed on the back surface of the kamachi skin material in the direction of the end of the kamachi skin material. Attach a rim core material with multiple hooks or mushroom-like microprojections on the surface of the skin material side so that the part faces, and sew both the skin material and the rim core material to secure the top side skin material The stepped portion may be formed by folding the stitched portion around the base point.
[0029]
In the present embodiment, the seat cushion side cover has been described. However, the present invention can also be applied to the seat back side cover.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a sheet according to the present invention.
FIG. 2 is a diagram showing a first embodiment in the AA cross section of FIG. 1;
FIG. 3 is a diagram showing a second embodiment taken along the line AA in FIG. 1;
4 is an enlarged exploded view of part B in FIG. 3. FIG.
FIG. 5 is a diagram showing a third embodiment in the AA cross section of FIG. 1;
6 is a diagram showing a fourth embodiment in the AA cross section of FIG. 1; FIG.
FIG. 7 is a partial cross-sectional view showing a state in which the stitch core material and the skin material of a conventional sheet are stitched together.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Seat main body 11 Seat back 12 Seat cushion 13 Cover 14 Seat pad material 15 Marble core material 16, 20 First suture line 17, 21 Second suture line 18 Step part

Claims (3)

While superposing the surface terminals of the skin materials, a bead core material composed of a ball portion and a belt plate portion is added so that the belt plate portion is located on the skin material terminal side, and the ball core material In the three-dimensional seat cover structure in which the step portion is formed by folding together the belt plate portion and the superposed portion of the both skin materials, and folding the one skin material so as to wrap the ball portion of the bead core material, A seat cover structure characterized in that the both skin materials are joined in the vicinity of the tip of the ball edge of the ball edge core material. 2. The seat cover structure according to claim 1, wherein an engagement portion is provided on one surface of the belt plate portion of the edge core material, and is engaged with and fixed to the back surface of the folded skin material. . The surface ends of the skin materials are polymerized, and a bead core material composed of a ball portion and a belt plate portion is sandwiched between the skin materials so that the belt plate portion is located on the skin material terminal side, A belt plate portion of the material and the both skin materials are joined together, the skin materials are joined at the front end side of the ball portion of the bead core material, and one of the skin materials is folded back from this joining portion as a base point. A seat cover structure characterized by forming a portion.

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