A recessed seam structure for a cover (3) that improves workability when forming a recessed seam (A) and allows frequent attachment and detachment at the recessed seam (A) is provided. In a seat (1) having the recessed seam (A) formed by pulling part of the cover (3) toward a side of a cushion material (2), the recessed seam (A) is provided with an opening and closing fastener (30) configured to couple the cover (3) and the cushion material (2), and the opening and closing fastener (30) includes a first fastener half (31) fixed to a back face of the cover (3) and a second fastener half (32) fixed to the cushion material (2). In such a seat (1), the recessed seam (A) can be formed easily and reliably on the seat (1) by aligning an end of the first fastener half (31) in a longitudinal direction and an end of the second fastener half (32) in the longitudinal direction of the opening and closing fastener (30) and simply sliding a slider (33).

A recessed seam structure for a cover (3) that improves workability when forming a recessed seam (A) and allows frequent attachment and detachment at the recessed seam (A) is provided. In a seat (1) having the recessed seam (A) formed by pulling part of the cover (3) toward a side of a cushion material (2), the recessed seam (A) is provided with an opening and closing fastener (30) configured to couple the cover (3) and the cushion material (2), and the opening and closing fastener (30) includes a first fastener half (31) fixed to a back face of the cover (3) and a second fastener half (32) fixed to the cushion material (2). In such a seat (1), the recessed seam (A) can be formed easily and reliably on the seat (1) by aligning an end of the first fastener half (31) in a longitudinal direction and an end of the second fastener half (32) in the longitudinal direction of the opening and closing fastener (30) and simply sliding a slider (33).

A method for manufacturing a vehicle seat cushion assembly includes providing a perforated outer material to define an outer seating surface. A backing material is sewn to the outer material using a first sewing line against which a wadding material is placed in a central region of the cushion. The wadding material is further secured by a hook and loop fastening product to the backing material. To secure the wadding material, a second sewing line is run. Left and right wadding materials are placed between the sewing lines and the edges of the cushion. Additional sewing lines laterally cross the longitudinal sewing lines to imbue the cushion with a wrist watch-like appearance.

A method for manufacturing a vehicle seat cushion assembly includes providing a perforated outer material to define an outer seating surface. A backing material is sewn to the outer material using a first sewing line against which a wadding material is placed in a central region of the cushion. The wadding material is further secured by a hook and loop fastening product to the backing material. To secure the wadding material, a second sewing line is run. Left and right wadding materials are placed between the sewing lines and the edges of the cushion. Additional sewing lines laterally cross the longitudinal sewing lines to imbue the cushion with a wrist watch-like appearance.

A skin locking clip that is firmly supported by a pad is provided. The skin locking clip (10) is disposed in a groove (8) of a pad (5) of a vehicle seat or the like, and fixes a locked portion (6c) attached to a skin material. The skin locking clip (10) includes a base plate (11), a locking piece (12) erected on the base plate (11) to lock the locked portion (6c), and an overhanging piece (13) erected on the base plate. Since the overhanging piece (13) is supported by the pad (5), the skin locking clip (10) is firmly supported by the pad (5).

There is provided a skin-material fixing clip for connecting a skin material with a cushion material and provided with a locking section and a hook. The hook is provided with an extension portion extending downward from the locking section and a claw-shaped portion extending laterally from a distal end of the extension portion. The locking section is provided with a wire guide piece. A groove portion surrounded by the claw-shaped portion and the extension portion defines a wire holding space. Parts of the wire guide piece and the claw-shaped portion facing the wire insertion opening defines guide surfaces. The distal end portion of the wire guide piece and the distal end portion of the claw-shaped portion are provided to be spaced from each other along a direction parallel to an extending direction of the groove portion.

There is provided a skin-material fixing clip for connecting a skin material with a cushion material and provided with a locking section and a hook. The hook is provided with an extension portion extending downward from the locking section and a claw-shaped portion extending laterally from a distal end of the extension portion. The locking section is provided with a wire guide piece. A groove portion surrounded by the claw-shaped portion and the extension portion defines a wire holding space. Parts of the wire guide piece and the claw-shaped portion facing the wire insertion opening defines guide surfaces. The distal end portion of the wire guide piece and the distal end portion of the claw-shaped portion are provided to be spaced from each other along a direction parallel to an extending direction of the groove portion.

A seat hooking structure (10) which supports by hooking a changeable cover (7) so as to be detachably attached to a seat member provided with a base trim cover (6), the seat hooking structure (10) comprising: an open-type fastening member (5) which is not sewn to the base trim cover (6), the fastening member (5) including a fastener part constituted by one fastener half (511) and another fastener half (512), and a slider part that slides along the fastener part so as to open and close the one fastener half (511) and the other fastener half (512); and an anchoring member (18) which anchors the one fastener half (511) to the seat member in a groove for hooking (11). The other fastener half (512) and the changeable cover (7) are secured to each other by a securing part (74).

A seat hooking structure (10) which supports by hooking a changeable cover (7) so as to be detachably attached to a seat member provided with a base trim cover (6), the seat hooking structure (10) comprising: an open-type fastening member (5) which is not sewn to the base trim cover (6), the fastening member (5) including a fastener part constituted by one fastener half (511) and another fastener half (512), and a slider part that slides along the fastener part so as to open and close the one fastener half (511) and the other fastener half (512); and an anchoring member (18) which anchors the one fastener half (511) to the seat member in a groove for hooking (11). The other fastener half (512) and the changeable cover (7) are secured to each other by a securing part (74).

A seat (1) comprises: a seat member (3(2)) that includes a cushioning material (4); and a fastening member (5) that allows a trim cover (7) to be detachably attached to a predetermined position on the seat member (3). The fastening member (5) is constituted by a slide fastener that includes: a fastener part (51) constituted by one fastener half (511) and another fastener half (512); and a slider part. At least part of a base part (6) provided in the one fastener half (511) is embedded in the cushioning material (4), and part of the other fastener half (512) is fixed to the trim cover (7).