SAFETY SWITCH

摘要

A safety switch (2) used in conjunction with a cable as a machine guard, the switch being actuated to cut power to attendant machinery when a predetermined tension in the cable is varied by for example pulling the cable, or the cable becoming loose. The switch (2) comprising a sliding cam (14) which is connected to a connection point (12) for the cable via a spring loaded shaft (10) which shaft also supplies said predetermined tension and acts to move said sliding cam (14) in a first plane when the predetermined tension is varied. The sliding cam (14) then acts on a transverse cam (36) moving it in a plane transversely disposed to said first plane which in turn acts to cut said power (30,52).