Transport and guide for sewing limp fabric
AssigneeDunlop Olympic Limited
InventorAnthony D. Mathias
Life of this patent
Estimating the term…
Abstract
A method of sewing along a marginal edge of a fabric piece wherein the fabric piece in a flat state is gripped between a stationary low friction surface and a movable high friction surface, so that movement of the high friction surface relative to the low friction surface will slide the fabric piece over the low friction surface, while maintained in the flat state. The fabric piece is gripped so that the marginal portion to be sewn is exposed, and as the fabric piece is moved over the low friction surface the marginal portion of the fabric piece is moved along a path through a sewing machine head so a sewing operation may be performed thereon.
Claims13
An apparatus for guiding a limp fabric while a sewing operation is being performed thereon, comprising a substantially flat low friction surface to be located adjacent a sewing machine head substantially co-planar with the sewing plane of the sewing machine head upon which the fabric piece may be supported in a flat state, a transport member adapted to frictionally engage the exposed surface of the fabric piece at least along an area bordering said marginal portion so that at least part of the marginal portion is exposed, means to move said frictionally gripped area in a sliding movement along said surface, maintaining said part of the marginal portion flat, and means to guide said transport member along a path to move said part of the marginal portion through the sewing machine head, wherein the transport member includes a plate member having a flat surface with at least part of said surface of a high friction material or coating and track means secured to said plate member including a portion contoured to substantially correspond to the contour of the marginal portion to be sewn and the track means being located on the plate member so that the contoured portion is substantially parallel to the edge of the plate member from which the marginal portion projects, and wherein said moving means includes a roller assembly associated with said sewing machine head having at least one driving roller and arranged to cooperate with the track means to effect said sliding movement of the transport member along said path.
A method of performing a sewing operation on a marginal portion of a limp fabric piece, the edge of said marginal portion being of a non-linear contour, comprising supporting the fabric piece in a flat state on a low friction surface, frictionally gripping the exposed surface of the fabric piece at least along an area bordering said marginal portion so at least part of the marginal portion is exposed, moving said frictional gripped area of the fabric piece in a sliding movement along said low friction surface while maintaining the marginal portion flat, and during said movement passing said marginal portion through the sewing machine head along a complementary non-linear contour, characterized in that the exposed surface is frictionally gripped by a transport member which includes a plate member having a flat surface with at least part of said surface of a high friction material or coating, and track means secured to said plate member, and the frictional gripped area of the fabric piece is moved by means which includes a roller assembly associated with said sewing machine head having at least one driving roller and arranged to cooperate with the track means to effect said sliding movement of the transport member along said path.
Dependencies are inferred from the claim text.