Sewing machine - less electronic control to drive the machine, and enables the operator to turn it easily by hand.

摘要

Sewing machine has a controlled drive mechanism, enabling the machine to run at a variable speed. A monitoring system is attached to the drive, and a module accepts commands to control the speed, which also includes the brake mechanism to constantly affect the commands given to the control system. ADVANTAGE - The design of the controller is to restrict the drive mechanism when under load, and to release the restriction, which acts as a brake mechanism, when not driven. This enables an operator to turn over the drive mechanism by hand easily. Furthermore, the needle does not move when the machine is controlled to stop.