Clutch assembly and clamp mechanism for rotary tool disc

Details Clutch assembly and clamp mechanism for rotary tool disc Clutch assembly and clamp mechanism for rotary tool disc

2006-03-21

2006-03-21

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Means to drive tool about an axis

C173S046000, C173S171000, C173S132000, C083S665000, C083S666000

Reexamination Certificate

active

07013987

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

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