SAFETY DEVICE FOR A WORKSHOP MACHINE

摘要

A safety device for a workshop machine contains a safety screen (26) which is equipped with powering means (32) in order to lower the screen (26) before the machine starts to operate. The powering means contain friction rolls (15) on opposite sides of the screen (26) and are coupled to a drive motor (32). The screen (26) is equipped on both its top side and its bottom side with approach switching means (22.25) which, when moved, give off an electric signal to a central processing unit (30). The central processing unit (30) is capable of controlling the drive motor (32) in accordance with the signals given off by the approach switching means.