Method of sewing process for trim cover of vehicle seat and vehicle seat using same

Patent metadata

Field	Value
Publication number	US-10378137-B2
Application number	US-201615296957-A
Country	US
Kind code	B2
Filing date	Oct 18, 2016
Priority date	Oct 26, 2015
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

Regarding a method of a sewing process for a trim cover of a vehicle seat provided with a decorative band, conventionally, a decorative band made up of a covering and wadding is sewn to a member of a trim cover similarly made up of a covering and wadding. Because of this, an area where a decorative band is sewn has an increased thickness, causing discomfort when an occupant sits. To address this, in the example embodiment, a sewn covering is manufactured by sewing together coverings for a portion of a trim cover and a decorative band and sewing decorative stitching through the sewn ends, and then the sewn covering and wadding are overlaid on each other to sew their borders together. This makes it possible to reduce the thickness of an area where the decorative band is sewn and reduce the discomfort when an occupant sits.

First claim

What is claimed is:

1. A method of a sewing process for a trim cover of a vehicle seat provided with a decorative band, comprising:
manufacturing a sewn covering by sewing a covering for a portion of a trim cover and a covering to form a decorative band to each other before sewing decorative stitching through ends of the coverings thus sewn to each other; and
overlaying the sewn covering and wadding on each other in order to sew borders of the sewn covering and the wadding together,
wherein when the covering for the portion of the trim cover and the covering to form the decorative band are sewn together, an end of the covering to form the decorative band is folded back for the sewing.

2. The method of the sewing process for the trim cover of the vehicle seat according to claim 1 , wherein
the wadding has a wadding cover.

3. A vehicle seat having a decorative band, comprising:
a sewn covering formed by sewing a covering to form part of a trim cover of the vehicle seat and a covering to form the decorative band to each other and then sewing decorative stitching through an end of the coverings thus sewn to each other; and
a wadding,
wherein the sewn covering and the wadding are overlaid on each other and sewn together at their borders, and
wherein in the sewing of the covering to form part of the trim cover and the covering to form the decorative band, an end of the covering to form the decorative band is folded back for the sewing.

4. A method of a sewing process for a trim cover of a vehicle seat provided with a decorative band, comprising:
cutting a covering used for the decorative band and a covering to form part of the trim cover into required sizes;
manufacturing a sewn covering by sewing the covering thus cut to be used for the decorative band and the covering thus cut to form part of the trim cover to each other and sewing decorative stitching through ends of the coverings thus sewn to each other; and
overlaying the sewn covering and wadding on each other in order to sew borders of the sewn covering and the wadding together,
wherein, when the covering thus cut to be used for the decorative band and the covering thus cut to form part of the trim cover are sewn together, an end of the covering thus cut to be used for the decorative band is folded back for the sewing.

Assignees

• Tachi S Co

Inventors

• Yoshizawa Hisayuki
• MINEGISHI Motoshi
• Nishida Tsunaki

Classifications

• B60N2/5883 Primary

  by sewing, stitching or threading · CPC title

• B60N2/5891 Primary

  characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for · CPC title

• B68G7/05

  Covering or enveloping cores of pads {(in plastics material using a matching die B29C63/025)} · CPC title

• D05B3/00 Primary

  Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings or for fastening articles, e.g. buttons, by sewing (program-controlled sewing machines D05B19/00; with devices for automatically controlling movement of work-carrier D05B21/00) · CPC title