Patent ID: 9290119
Filing Date: 2016-03-22
CPC Classification: B60N,B68G,D05B,Y10T

Claim Text:
1. A sewing method for forming a trim cover assembly, comprising the steps of: providing a surface cover element composed of a surface cover material and a first foam wadding, said surface cover element having an end portion, providing a wadding cover having an end portion, providing a second thick foam wadding which is greater in pliability and thickness than said first foam wadding, said second thick foam wadding having an end portion and an end surface defined in a distal end of said end portion, setting said surface cover element at a sewing machine, such that the first foam wadding thereof lies down thereat, with the surface cover material thereof laying atop the first foam wadding, stacking said second thick foam wadding upon said surface cover material of said surface cover element set at said sewing machine, pressing and collapsing said end surface of said second thick foam wadding in a downwardly slantwise direction, thereby creating a compressed thin area therein, operating said sewing machine, while continuing to create said compressed thin area, so as to sew together each of the end portions of said surface cover element and said second thick foam wadding at said compressed thin area, thereby forming a first sewn portion in and along each of said end portions of said surface cover element and said second thick foam wadding, thereafter, stacking said wadding cover upon said second thick foam wadding, such that the end portion of said wadding cover overlies said first sewn portion, and thereafter, operating said sewing machine to sew the end portion of said wadding cover with each of the end portions of said surface cover element and said second thick foam wadding, in and along said first sewn portion, so that a trim cover assembly is formed, which has: a thick portion defined at a point substantially corresponding to said second thick foam wadding; and a thin peripheral end portion defined at a point substantially corresponding to said first sewn portion.