KUPPLUNGSANORDNUNG FÜR ROTIERENDES SCHEIBENFÖRMIGES WERKZEUG

摘要

A system for clamping an rotary tool accessory disc or blade to an output shaft of a rotary tool (40) comprising a cam clamping mechanism (10) and a clutch assembly (80) wherein the cam clamping mechanism (10) comprises: a head element (14) threadably engageable with the output shaft at a location axially outward of the accessory disc (60); a cam (18) rotatably connected to the head element (14) and rotatable between a clamped and unclamped position, wherein the clamped position the cam (18) exerts a compression force axially inward against the accessory disc or blade (60); and wherein the clutch assembly (80) comprises: at least one first type of disc (84) located coaxially on and keyed to the output shaft; at least one second type of disc (86) located coaxially on the output shaft and in planar parallel contact with the first type disc (84); and an inner washer (94) having an internal bore, the inner washer located coaxially on the output shaft, axially outward of and surrounding the first type disc (84) and the second type disc (86), the inner washer (94) keyed at the internal bore to the second type of disc (86) such that rotation of the second type of disc (86) imparts rotation to the inner washer (94).