Patent ID: 6363872
Filing Date: 2002-04-02
Classification: D05B

Abstract:
A sewing machine with an overload clutch for breaking the drive connection when a blockage of the sewing machine occurs, comprising:a drive shaft with a driving wheel mounted thereon, a drive motor with an electronic control, the drive motor being connected to the driving wheel for driving the drive shaft, a position transmitter connected to the drive shaft, wherein the position transmitter transmits signals to the control representing the rotary position and speed of the drive shaft, an overload clutch comprising a friction clutch having a pair of friction surfaces arranged between the driving wheel and the drive shaft, wherein the signals transmitted by the position transmitter to the control indicate when the drive shaft is stopped by a blockage of the sewing machine, and wherein the control causes the drive motor to stop in response to the signals indicating that the drive shaft is stopped.