Patent ID: 6012405
Filing Date: 2000-01-11
Classification: D05B,D05C,D05D

Abstract:
An apparatus for stitching fabric while automatically controlling tension applied to thread used in the stitching, comprising:first means for supplying information related to actual length of thread used for at least one stitch;a tensioning assembly for tensioning the thread that is used in stitching the fabric with the at least one stitch; andsecond means responsive to at least said first means for enabling stitching and for controlling said tensioning assembly;wherein said second means determines a value related to said desired thread length using a first factor related to desired thread length, with said value related to said desired thread length being dependent on at least a first predetermined factor different from said first factor, said first predetermined factor relating to a speed of the stitch in which, as said speed increases, said first predetermined factor changes in a predetermined direction.