JP2019043152A - Vehicle seat - Google Patents

Abstract

To reliably and fittingly dispose a seam of a seat cover in a groove of a seat pad.SOLUTION: In a vehicle seat, a seat cover 4S includes a pair of surface pieces (SP3 and SP4), a seam (32a) in which seam allowances (22 and 24) of the pair of surface pieces are layered face to face, and a seam line 40 along which the seam allowances are stitched to be the seam. With a seat pad 4P shielded with the seat cover 4S, the pair of surface pieces (SP3 and SP4) is deployed on a planar basis with the seam line 40 as a base point, and the seam (32a) is inserted into a groove (12a). The seam (32a) includes a regulatory part 42 that regulates the ends of the seam allowances (22 and 24) forming a distal end E of the seam (32a) for fear the ends may fan out to recede from each other with the seam line 40 as the base point.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle seat including a seat pad forming a seat outline and a seat cover for covering the seat pad, wherein a suture portion forming a part of the seat cover is disposed in a groove of the seat pad.

  A seat cover of this type is a facing material which is a design surface of a vehicle seat, and is formed by stitching a plurality of skin pieces. For example, the skin disclosed in Patent Document 1 is a facing material corresponding to the seat cover of the present invention, and has a plurality of skin sheets corresponding to the skin piece of the present invention. Each of these skin sheets is a facing material in which a leather skin sheet and a slab sheet are laminated, and the design surface can be constituted by the leather skin sheet. And in forming an outer_skin | epidermis, stitching | suture allowances of each outer_skin | epidermis sheet | seat are accumulated on the inside surface shape, a stitching | suture part is formed, and stitching | suture allowances are sutured with a stitching | suture wire in this stitching | suture part. Further, the respective stitching allowances forming the stitching portion are sewn with decorative stitching (out stitch) on the back side of the corresponding skin sheet in a state of being turned away from each other. Then, a pair of skin sheets can be spread in a plane form with a suture line as a base point to form a skin.

  The seat cover is covered with, for example, a seat pad that elastically supports an occupant, and at this time, the sewn portion may be disposed in the groove of the seat pad. For example, in the case of the epidermis of Patent Document 1, the sutured portion is made to project on the back side of the epidermis by omitting the decorative stitch. In this state, while covering the seat pad with the skin, the sutured portion projecting on the back side of the skin is inserted into the groove of the seat pad and disposed. By arranging the sutured portion projecting to the back side of the epidermis in this manner, it is possible to arrange the epidermis in a well-looking manner along the seat pad by arranging the sutured portion well in the groove.

JP, 2007-289284, A

  By the way, in the above-mentioned configuration, although the seams forming the seam portion are stitched by the suture line, the seams are merely overlapped and arranged on the distal side of the seam portion. For this reason, the end portions of the seams forming the stitching portion sometimes spread apart from each other with respect to the stitching line. Then, when the sewn part is inserted into the groove, the expanded sewn margin is caught in the groove, etc., so that the sewn part can not be accommodated well in the groove and there is a risk that the skin will partially rise (lift). The The present invention has been made in view of the above-mentioned point, and the problem to be solved by the present invention is to arrange the sewn portion of the seat cover more securely and better in the groove portion of the seat pad.

  As means for solving the above-mentioned problems, the vehicle seat according to the first aspect of the present invention includes a seat pad forming the outer shape of the seat, a groove portion provided on the seat pad, and a seat cover for covering the seat pad. Further, the seat cover has a pair of adjacent skin pieces, a suture portion in which the seam allowances of the pair of skin pieces overlap each other, and a suture line in which the seams are sewn together at the suture portion. . Then, in a state in which the seat pad is covered with the seat cover, the pair of skin pieces are spread in a planar shape with the suture line as a base point, and the sutured part is inserted into the groove. In this type of sheet configuration, it is desirable to position the seamed portion of the seat cover more securely and better in the groove of the seat pad. Therefore, the suture portion of the present invention has a regulating portion which regulates that the end sides of the seams forming the end of the suture portion are separated from each other with the suture line as a base point. In the present invention, by restricting the expansion of the stitching allowances by the restricting portion, it is possible to smoothly insert the sutured portion into the groove portion and to arrange the suture portion well.

  A vehicle seat according to a second aspect of the present invention is the vehicle seat according to the first aspect of the present invention, wherein an elastically stretchable planar wadding is attached to the back side of at least one of the pair of skin pieces It resists the elastic force of Wadding, and it is set as the structure which regulates that the edge part side of sewing allowances spreads. In the present invention, the wadding is provided on the back side of the skin piece from the viewpoint of improving the performance of the seat cover and the like. Therefore, in the present invention, by restricting the spreading of the seams against the elastic force of the wadding in the regulating portion, it is possible to arrange the sewn portion in the groove portion well.

  A vehicle seat according to a third aspect of the present invention is the vehicle seat according to the first or second aspect of the present invention, wherein the restricting portion is formed of a suture that sews the seams. In the present invention, it is possible to restrict the spread of the sewing allowances by the restricting portion (the restricting portion having a relatively simple structure) made of the thread.

  A vehicle seat according to a fourth aspect of the present invention is the vehicle seat according to any of the first to third aspects, wherein the suture portion is bisected in the direction from the suture line to the end of the suture portion, When divided into a suture portion and a distal suture portion, the restriction portion is disposed at the distal suture portion. In the present invention, by providing the restriction portion on the distal side of the suture portion which is relatively easy to spread, the spread of the seams can be more reliably regulated.

  A vehicle seat according to a fifth invention is the vehicle seat according to any of the first invention to the fourth invention, wherein at least one of the pair of skin pieces is provided with a through hole penetrating the corresponding skin piece in the thickness direction In addition, the restricting portion is spaced apart from the end of the suture portion by the diameter of the through hole or more. In the present invention, the through-hole is provided in the skin piece from the viewpoint of improving the performance of the seat cover, etc. However, there is a possibility that the restricting portion may be partially dropped out by fitting the through-hole. Therefore, in the present invention, partial separation of the restricting portion from the sutured portion can be avoided as much as possible by arranging the restricting portion to be separated from the end of the sutured portion by at least the diameter of the through hole.

  According to the first aspect of the present invention, the sewn portion of the seat cover can be arranged more reliably and better in the groove portion of the seat pad. Further, according to the second aspect of the present invention, the sutured portion can be reliably fitted in the groove portion and disposed well, while improving the performance of the seat cover. Further, according to the third aspect of the present invention, the suture portion can be placed more reliably in the groove and disposed well, by the relatively simple structure. Further, according to the fourth aspect of the present invention, the sutured portion can be more reliably placed in the groove and disposed well. According to the fifth aspect of the present invention, the sutured portion can be placed more reliably in the groove and disposed well, while improving the performance of the seat cover.

It is a perspective view of a vehicle seat. It is a perspective view of a seat pad. It is a schematic reverse view of a seat cover part. It is a sectional view of a part of a seat cushion. It is sectional drawing of a part of seat cover before forming a control part. It is a perspective view of a part of seat cover concerning modification 1. FIG. It is a sectional view of a part of seat cushion concerning modification 1. FIG.

  Hereinafter, modes for carrying out the present invention will be described with reference to FIGS. 1 to 7. In each of the drawings, arrow lines indicating the longitudinal direction, the vertical direction, and the lateral direction of the vehicle seat are appropriately illustrated. Further, in the drawings in which only the seat cover is illustrated, arrow lines indicating directions are illustrated with reference to a state in which the seat cover is disposed on the vehicle seat. The vehicle seat 2 of FIG. 1 has a seat cushion 4, a seat back 6, and a headrest 8. These sheet constituent members (4, 6, 8) respectively cover a seat frame (4F, 6F, 8F) forming a sheet framework, a seat pad (4P, 6P, 8P) forming a sheet outline, and a seat pad It has a seat cover (4S, 6S, 8S). The lower portion of the seat back 6 is connected to the rear of the seat cushion 4 (details will be described later) so as to be able to be raised and lowered, and the headrest 8 is disposed above the seat back 6 in the upright state.

[Seat cushion]
The seat cushion 4 is formed by disposing a seat pad 4P (described in detail later) on a seat frame 4F (not shown) and covering the seat pad 4P (described in detail later) with reference to FIG. Here, the seat frame 4F is a frame body that is typically substantially rectangular in a top view, and can be formed of a material having excellent rigidity such as metal or hard resin. Then, when covering the seat pad 4P with the seat cover 4S, referring to FIGS. 2 to 4, the sutured portions 32a etc. (details will be described later) forming a part of the seat cover 4S and the corresponding groove portions 12a of the seat pad 4P. Etc. (details will be described later). Thus, the seat cover 4S is disposed along the seat pad 4P in a good appearance, but at this time, if the sutured part (32a etc.) is not placed well in the groove (12a etc.), the seat cover 4S is partially There is a risk that a climax may occur. Therefore, in the present embodiment, the sewn portion (32a etc.) of the seat cover 4S is arranged more reliably and better in the groove (12a etc.) of the seat pad 4P by the configuration described later. Each component will be described in detail below.

[Seat pad]
Referring to FIG. 2, the seat pad 4P is a substantially rectangular member in top view, and has a plurality of types of groove portions (10a to 10c, 12a, 12b) described later. Although the material of the seat pad 4P is not particularly limited, it is typically made of a material capable of elastically supporting the occupant, and is a foamed resin such as polyurethane foam (density: 10 kg / m ^{3 to} 60 kg / m ³ ) Can be illustrated. The portion of the seat pad 4P to be the design surface of the seat can be divided into the top main portion 4a and the left and right top plate side portions 4b, which form the seating surface, and the left and right head portions 4c. The top plate main portion 4a is a substantially flat portion formed at the center in the left-right direction which is the seat width direction, and extends in the front-rear direction with a width that allows an occupant to be seated. Each top plate side portion 4b is a portion that protrudes relatively upward in the left and right sides of the top plate main portion 4a, and can support the side of the occupant during cornering travel or the like. And each hit portion 4c is a part which makes the right and left sides of seat cushion 4 in the seat cross direction, respectively.

[Groove]
Further, with reference to FIG. 2, plural kinds of groove portions (a plurality of hanging groove portions 10 a to 10 c and a pair of left and right arranged groove portions 12 a and 12 b) are linear concave portions provided on the seating surface of the seat pad 4P. is there. Here, the plurality of hanging groove portions 10a to 10c are provided so as to form substantially H in top view, and a part of the seat cover 4S can be hooked and retained in the bottom portions of the respective hanging groove portions 10a to 10c. Wire material WM1 is embedded. The central hanging groove portion 10a is a recessed portion that crosses the top plate main portion 4a to the left and right, and the left and right hanging groove portions 10b and 10c are recessed portions that extend back and forth across the central hanging groove portion 10a. The right hanging groove portion 10b is provided between the top plate main portion 4a and the right top plate side portion 4b, and the left hanging groove portion 10c is formed of the top plate main portion 4a and the left top plate side portion 4b. It is provided between.

  In the seat pad 4P, referring to FIG. 2, the right placement groove 12a across the right top plate side 4b and the left placement groove 12b across the left top plate side 4b. And are provided. The left and right placement groove portions 12a and 12b are recessed portions respectively corresponding to the groove portions of the present invention, and as described later, the corresponding suture portions (the respective suture portions 32a and 32b shown in FIG. 3) are inserted and arranged. Can be The pair of arrangement grooves 12a and 12b are provided so as to be symmetrical in the left-right direction, and are gradually inclined rearward as they are separated from the top plate main portion 4a. The depth dimension of each arrangement groove portion 12a, 12b is set to a depth dimension capable of arranging the corresponding suture portion, and there is typically no need to embed the wire material WM1 in each hanging groove portion 10a to 10c. In contrast, it can be made shallow.

[Seat Cover]
The sheet cover 4S is a face material which constitutes a design surface of a sheet with reference to FIGS. 1 and 3, and includes a plurality of skin pieces (first skin piece SP1 to sixth skin piece SP6 etc.) and sutures described later. (30a to 30c, 32a, 32b) (In FIG. 1, for convenience, specific reference numerals SP1 to SP6 are given to specific skin pieces and common reference characters SP are given to other skin pieces. ). The first skin piece SP1 is a skin piece that covers the front of the top plate main portion 4a, and the second skin piece SP2 is a skin piece that covers the rear of the top plate main portion 4a. The third skin piece SP3 is a skin piece that covers the front of the right top plate side 4b, and the fourth skin piece SP4 is a skin piece that covers the rear of the right top plate side 4b. The fifth skin piece SP5 is a skin piece that covers the front of the left top plate side 4b, and the sixth skin piece SP6 is a skin piece that covers the rear of the left top plate side 4b. In the present embodiment, the third skin piece SP3 and the fourth skin piece SP4 correspond to the pair of skin pieces of the present invention, and the fifth skin piece SP5 and the sixth skin piece SP6 are also the pair of skin pieces of the present invention It corresponds to

  Here, various facing materials capable of constituting the design surface of the sheet can be used as a material of each of the skin pieces SP1 to SP6, etc. A fabric (woven fabric, knitted fabric, non-woven fabric) or leather (naturally made of natural fibers or synthetic fibers) Leather, synthetic leather) can be exemplified. In addition, a wadding 20 shown in FIG. 4 can be attached to the back side of each skin piece. The wadding 20 is a surface-like or mat-like member that can be elastically expanded and contracted. By attaching the wadding 20, the performance of the seat cover 4S such as seating performance and design can be improved. Although the material of the wadding 20 is not particularly limited, a slab urethane, a cotton material, and a 3D net body (a member formed by knitting fibers in a three-dimensional shape) can be exemplified. Also, the wadding 20 can be integrally attached to the back side of each skin piece by means of a method such as suturing, adhesion, or fusion.

  Further, referring to FIG. 3, between adjacent skin pieces, stitching portions (30a to 30c, 32a, 32b) in which these stitching portions overlap each other are provided to form stitching portions forming the respective stitching portions. They are sewn together with sutures (40a, 40). For example, in the seat cover 4S, a plurality of suturing suture parts (horizontal suture part 30a, right longitudinal suture part 30b, left longitudinal suture part 30c) and a pair of suture parts (right suture part 32a, left suture part described later) 32b) are provided. Here, the lateral suture portion 30a is provided between the first skin piece SP1 and the second skin piece SP2 and extends laterally, and can be disposed along the central hanging groove portion 10a shown in FIG. The right vertical suture portion 30b is provided between the skin pieces SP1 and SP2 on the top plate main portion 4a side and the skin pieces SP3 and SP4 on the right top plate side portion 4b side and extends in the front and rear direction. It can arrange | position along the right side hanging groove part 10b shown to FIG. The left vertical seam 30c is provided between the skin pieces SP1 and SP2 on the top plate main portion 4a side and the skin pieces SP5 and SP6 on the left top plate side portion 4b side and extends in the front and rear direction. It can be disposed along the left hanging groove portion 10c shown in FIG. A wire material WM2 is attached to each of the hanging suture portions 30a to 30c via a hanging cloth 35. The wire material WM2 is fixed to the wire material WM1 on the seat pad side shown in FIG. It is possible. Then, when covering the seat pad 4P with the seat cover 4S, the hanging suture portions 30a to 30c shown in FIG. 3 are pulled into the corresponding hanging groove portions 10a to 10c shown in FIG. Can be

[Suture]
Further, referring to FIG. 3, the seat cover 4S is provided with a right side suture portion 32a and a left side suture portion 32b corresponding to the suture portion of the present invention. The right suture portion 32a is provided between the third skin piece SP3 and the fourth skin piece SP4 and extends leftward and rightward, and can be disposed along the right placement groove 12a shown in FIG. The left suture portion 32b is provided between the fifth skin piece SP5 and the sixth skin piece SP6 and extends leftward and rightward, and can be disposed along the left placement groove 12b shown in FIG. Since the right side suture portion 32a and the left side suture portion 32b have substantially the same basic configuration except that they are arranged symmetrically, the details of the right side suture portion 32a will be described as an example below. Referring to FIG. 4, the right side suture portion 32a is configured by a back seam margin 22 forming the rear edge of the third skin piece SP3 and a front seam margin 24 forming the front edge of the fourth skin piece SP4. A suture 40 and a restriction portion 42 are provided. The suture line 40 is a linear stitch that stitches the back seam margin 22 and the front seam margin 24, and is continuously provided along the right seam portion 32a and linearly extends in the left-right direction. The suture line 40 can be formed by straightly sewing these sewing allowances 22 and 24 with a sewing machine in a state in which the third skin piece SP3 and the fourth skin piece SP4 are overlapped in a middle surface shape.

[Regulatory department]
Referring to FIG. 4, the restricting portion 42 restricts the end portions of the back seam margin 22 and the front seam margin 24 forming the end (E) of the right side seam portion 32 a from spreading apart in the direction away from the suture line 40. It is a part that is doing. The restricting portion 42 can be composed of various members capable of restricting the spreading (separation) of the stitching allowances 22 and 24. As such a member, physical properties such as a thread, an adhesive resin layer with an adhesive or an adhesive, staples, etc. Connection member can be illustrated. The restricting portion 42 of the present embodiment is constituted by a stitch of a thread Y which stitches the back seam margin 22 and the front seam margin 24 and linearly extends in the left-right direction so as to be substantially parallel to the suture line 40. ing. And, by the tightening force of the sewing thread Y as the restricting portion 42, the spreading on the end side of the back-stitching margin 22 and the front-stitching margin 24 is more reliably blocked. Thus, by providing the restriction portion 42 in the right suture portion 32a, the front and rear width dimension W1 of the end (E) of the right suture portion 32a is maintained at or below the opening dimension W2 (preferably less) of the front and rear of the placement groove 12a. It is possible to In particular, the restricting portion 42 of the present embodiment penetrates the seam allowances 22 and 24 forming the right side suture portion 32 a together with the wadding 20 disposed on the back side of these. For this reason, it becomes possible to resist the elastic force of the wadding 20 by the tightening force of the restricting portion 42 and to restrict the spread of the sewing margins 22 and 24. Further, the right suture portion 32a is sewn by the suture line 40 and the restricting portion 42, so that the right suture portion 32a can be easily maintained in a standing state on the back side of the seat cover 4S.

  Here, although the restricting portion 42 can be formed of a thread different from the suture line 40, it is preferable that the restricting portion 42 be formed of the same thread. Then, by forming the suture wire 40 and the restriction part 42 with the same kind of sewing thread, it is possible to quickly perform the forming work of the suture wire 40 and the formation work of the restriction part 42 with the same sewing machine (sewing twice) Thus, the configuration contributes to the improvement of the workability when forming the seat cover 4S. The thread Y is a wire made of a natural fiber or a synthetic fiber, and is a softer and softer material than an adhesive resin layer or a staple. Therefore, by forming the restricting portion 42 with the thread Y, it is possible to avoid the problem such as the restricting portion 42 becoming excessively hard as much as possible. The sewing thread Y forming the regulating portion 42 is a generic name of the upper thread and the lower thread when using a sewing machine, and is a single thread material in the case of hand-sewing.

  Further, the arrangement position of the restricting portion 42 may be any position that can restrict the expansion of the corresponding stitching allowances, but it is preferable to set it on the end (E) side of the right suture portion 32 a. For example, in the present embodiment, the right suture 32a is bisected in the direction (vertical direction in FIG. 4) from the suture 40 toward the end (E), and the suture portion 40A on the suture wire side and the distal side When divided into the suture portion 40B, the restricting portion 42 is provided in the distal suture portion 40B. By disposing the restricting portion 42 on the end (E) side of the right suture portion 32 a in this manner, expansion of the end portion side of the back-stitching margin 22 and the front-stitching margin 24 can be controlled more reliably.

[Covering seat pad by seat cover]
Referring to FIGS. 1 to 3, after the seat pad 4P is disposed on the seat frame 4F, the seat pad 4P is covered with a seat cover 4S. At this time, the suturing portions 30a to 30c for suspension are suspended in the shape of a suspension in the corresponding suspension grooves 10a to 10c. In addition, the right suture portion 32a and the left suture portion 32b (hereinafter, may be referred to as the right suture portion 32a and the like) may be disposed in the corresponding arrangement grooves 12a and 12b (hereinafter, may be referred to as the arrangement groove 12a and the like) deep. At this time, in the right side seamed portion 32a etc., if the end side of the seam allowances 22 and 24 is expanded and the like and the placement groove portion 12a etc. is not disposed well, the seat cover 4S partially swells (lifts up) There is a fear.

  For example, in the right side suture portion 32 a shown in FIG. 5, it is assumed that the back seam margin 22 and the front seam margin 24 are sutured only by the suture line 40. In such a state, there is a concern that the backsewing margin 22 and the front seam margin 24 will gradually expand in a forward and backward manner toward the end from the suture line 40 (see the seam margin in the two-dot broken line state in FIG. 5). ). Particularly in the present embodiment, the wadding 20 is provided on the back side of each skin piece from the viewpoint of improving the performance of the seat cover 4S etc. However, the elastic force of the wading 20 spreads the end portions of the seams 22 and 24 together. It is also an easy-to-open configuration. Then, due to the expansion on the end side of both the seam allowances 22 and 24, the width dimension W3 on the end (E) side of the right stitched portion 32a becomes larger than the width dimension W2 of the disposition groove 12a. In this state, even if the right suture part 32a is to be disposed in the placement groove 12a, the end (E) side of the right suture part 32a is caught on the periphery of the placement groove 12a, etc. .

  Therefore, in the present embodiment, referring to FIGS. 3 and 4, the restricting portion 42 is provided at an appropriate position such as the right suture portion 32 a. At the restricting portion 42, as shown in FIG. 4, the end portions of the seam allowances 22 and 24 forming the end (E) of the right side suture portion 32a and the like are restricted from spreading away from each other with the suture line 40 as a base point. doing. At this time, even if the sheet cover 4S is provided with the wadding 20, the expansion of the sewing allowances 22 and 24 can be regulated by the regulating portion 42 against the elastic force of the wadding 20. Thus, the distal end (E) of the right side suture portion 32a and the like is maintained at the appropriate width dimension W1 by the regulation portion 42, so that the insertion groove 12a etc. (opening dimension W2: W2: W1) can be smoothly inserted. be able to. Furthermore, the right suture portion 32a is sewn by the suture line 40 and the restricting portion 42, so that the right suture portion 32a can be easily maintained in a standing state on the back side of the seat cover 4S. In this way, by making the right side suture portion 32a stand upright on the back side of the seat cover 4S, the right side suture portion 32a can be easily inserted into the placement groove 12a, which contributes to improvement of workability. Thus, according to the present embodiment, when the seat pad 4P is covered with the seat cover 4S, the right side seamed portion 32a etc. can be smoothly inserted into the placement groove 12a etc., and can be disposed more reliably and arranged more reliably. . By arranging the right side suture parts 32a and the like in the corresponding arrangement grooves 12a and the like in this manner, the seat cover 4S can be arranged nicely along the seat pad 4P, which contributes to the improvement of the design of the sheet.

  As described above, in the present embodiment, by restricting the expansion of the seam allowances 22 and 24 by the restricting portion 42, the sutured portions (32a and the like) are smoothly inserted into the groove portions (12a and the like) to be disposed well. It is possible to Particularly, in the present embodiment, by restricting the expansion of the stitching allowances 22 and 24 against each other by the restricting portion 42 against the elastic force of the wadding 20, the sutured portion (32a etc.) fits in the groove (12a etc.) well. It becomes possible to arrange. Further, in the present embodiment, the spreading of the sewing allowances 22 and 24 can be restricted by the restricting portion 42 (the restricting portion 42 having a relatively simple structure) formed of the thread Y. Further, in the present embodiment, by providing the restricting portion 42 on the distal side of the suture portion (32a etc.) which is relatively easy to spread, the spreading of the sewing margins 22 and 24 can be restricted more reliably. For this reason, according to the present embodiment, the right side stitched portion (32a etc.) of the seat cover 4S can be arranged more reliably and well within the groove (12a etc.) of the seat pad 4P.

[Modification]
Here, the configuration of the seat cover and the suture portion may take various configurations in addition to the above-described configurations. For example, the seat cover 4S of the modification shown in FIG. 6 and FIG. 7 has a plurality of skin pieces SP1, SP3, SP4 etc. (typically made of leather) as in the embodiment, and further each skin piece SP1, SP3,. In the SP 4 and the like, a plurality of through holes 50 are formed at appropriate intervals (in the respective drawings, some through holes are denoted by the reference numeral 50 and the other through holes are omitted for convenience). The plurality of through holes 50 are holes penetrating the corresponding skin piece in the thickness direction, and each has a substantially circular opening (diameter: φ). By providing the through holes 50 at appropriate positions of the seat cover 4S as described above, the air permeability and the like of the seat cover 4S can be improved, and the design can be further improved.

  Furthermore, the seat cover 4S is provided with a right side suture portion 32a between the third surface piece SP3 and the fourth surface piece SP4 shown in FIG. 7, and the right side portion 32a has a suture 40 and a restriction portion 42. ing. And in this modification, although penetration hole 50 is provided in 3rd outer skin piece SP3 and fourth outer skin piece SP4, the regulation part 42 (sewing thread Y) fits in this penetration hole 50, etc. May fall out. Therefore, in the present modification, the restricting portion 42 is disposed apart from the end (E) of the right side suture portion 32 a by a diameter dimension φ or more of the through hole 50. That is, in the right side suture portion 32a, the restriction portion 42 is provided in the suture portion portion 40B on the distal side, and is further separated from the end (E) of the right side suture portion 32a by a diameter dimension φ or more of the through hole 50. By arranging the restricting portion 42 at an appropriate position of the right suture portion 32a in this manner, the suture Y forming the restricting portion 42 is suitably prevented from being fitted into the through hole 50 at the end (E) of the right suture portion 32a. It is done. In this manner, in the present modification, the restricting portion 42 is disposed apart from the end (E) of the right sutured portion 32a by the diameter of the through hole 50 or more, thereby partially dropping the restricting portion 42 from the right sutured portion 32a. Can be avoided as much as possible.

  The vehicle seat 2 of the present embodiment is not limited to the above-described embodiment, and various other embodiments can be taken. In the present embodiment, the configuration (shape, size, formation position, number of formations, etc.) of the restricting portion 42 is exemplified, but the present invention is not intended to limit the structure of the restricting portion. For example, in the case where the restricting portion is formed of a thread, it can be formed intermittently along the corresponding stitching portion, and can be formed by stitches of various shapes such as oversewing and zigzag stitching besides straight stitching. The restriction can also be formed at the end of the corresponding suture. Further, the restriction portion can be provided at an appropriate position of the suture portion, can be formed on at least one of the suture portion on the suture line side and the suture portion on the distal side, and can be formed across both the suture portions. . Further, the restricting portion can be formed by appropriately combining a sewing thread, an adhesive resin layer, and a bonding member.

  Further, in the present embodiment, the configuration of each of the skin pieces SP1 to SP6 and the like, the suture portions 32a and 32b, and the like is illustrated. However, the sheet cover can be formed of an appropriate number of skin pieces, and the formation places of the suture portions can be appropriately changed. It is. Similarly, the configuration of the groove portion of the seat pad can be appropriately changed. For example, depending on the formation position of the groove portion of the seat pad, a suture portion corresponding to the suture portion of the present invention can be provided on the seat cover. Alternatively, only a portion of the suture may be disposed in the groove and the other portion may be suspended in a suspended manner in the groove. In addition to the hog ring stop, the sutured portion can be locked to the bottom side of the groove using various members. In addition, the wadding can be attached to the entire surface or a part of the back side of each skin piece, and the wading can be omitted as needed. Also, the wadding can be attached only to one of a pair of adjacent skin pieces. Also, the through holes can be formed in all of the plurality of skin pieces, or can be formed in only some of the skin pieces. In the present modification, the diameter dimension of each through hole 50 is set to be the same, but the diameter dimension and the shape may be different for each through hole (it may be a different shape). When a plurality of differently shaped through holes are formed in the seat cover, it is desirable to set the position of the restricting portion on the basis of the diameter dimension and the opening dimension (outer dimension) of the largest through hole.

  Further, although the configuration (shape, dimensions, component members, etc.) of the vehicle seat 2 is exemplified in the present embodiment, the present invention is not intended to limit the configuration of the vehicle seat, and may be a vehicle seat for multiple persons. . In addition to the seat cushion, the configuration of the present embodiment can be applied to various seat components such as a seatback, a headrest, and an armrest. The configuration of this embodiment can be applied to all types of seats for vehicles such as vehicles, aircraft, and trains.

2 Vehicle Seats 4 Seat Cushions 6 Seat Backs 8 Head Rests 4F Seat Frames 4S Seat Covers 4P Seat Pads 4a Top Plate Main Part 4b Top Plate Side Part 4c Double Sections 10a to 10c Hanging Grooves 12a, 12b Arrangement Grooves
20 Wadding 22 Backsewing allowance (sewing allowance of the present invention)
24 Front sewing allowance (sewing allowance of the present invention)
30a horizontal suture 30b right vertical suture 30c left vertical suture 32a right suture (the suture of the present invention)
32b Left suture part (suture part of the present invention)
40A Suture part 40B on the suture line side Suture part 35 on the distal side Suspending cloth 40 Suture line 42 Regulating part 50 Through hole SP1 First skin piece SP2 Second skin piece SP3 Third skin piece (of the skin piece of the present invention)
SP4 fourth skin piece (skin piece of the present invention)
SP5 fifth skin piece (skin piece of the present invention)
SP6 sixth skin piece (skin piece of the present invention)
SP skin piece WM1, WM2 wire material

Claims (5)

A seat pad forming a sheet shape, a groove portion provided in the seat pad, and a seat cover for covering the seat pad, the seat cover includes a pair of adjacent skin pieces, and a seam margin of the pair of skin pieces The pair of skin pieces in a state in which the pair of skin pieces have a suture portion overlapping each other in the shape of a middle surface and a suture line stitching the seams at the suture portion and covering the sheet pad with the sheet cover In the vehicle seat which is spread in a planar shape from the suture line as a base point and in which the suture portion is inserted into the groove portion,
The seat for a vehicle according to any one of the preceding claims, wherein the stitching portion has a regulating portion that regulates that end portions of stitching margins forming the end of the stitching portion are separated from each other with the stitching line as a base point. An elastically stretchable planar wadding is attached to the back of at least one of the pair of skin pieces,
2. The vehicle seat according to claim 1, wherein the restricting portion is configured to restrict the end portions of the seams from expanding against the elastic force of the wadding.   The vehicle seat according to claim 1, wherein the restriction portion is configured by a sewing thread that stitches the seams.   When the suture portion is bisected in the direction from the suture line toward the end of the suture portion and divided into a suture portion on the suture line side and a suture portion on the distal side, the restriction portion is the end 4. A vehicle seat according to any one of the preceding claims, arranged in a side seam portion. At least one of the pair of skin pieces is provided with a through hole penetrating the corresponding skin piece in the thickness direction,
The vehicle seat according to any one of claims 1 to 4, wherein the restriction portion is disposed apart from the end of the suture portion by a diameter dimension of the through hole or more.

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