TOOL CHUCK WITH SLEEVE AND CLUTCH MECHANISM TO REMOVE OPERATOR VARIABILITY

摘要

A tool chuck (50) may include a chuck body (20) defining a longitudinal axis (10). The rear end of the chuck body may be fixedly mounted on a spindle (85) of a power driver. The forward end of the chuck body may have passageways that slidably support a plurality of chuck jaws (2). The jaws may be actuated via outward facing threads (3) interacting with radially inward facing threads (18) of a nut (16). A rear sleeve (40) may be mounted on the chuck body for movement between a first axial position and a second axial position. A clutch part (42) is provided on the rear sleeve. The clutch part may engage with a cooperating clutch part (32) when the rear sleeve is in the second axial position. A spring (25) may bias the sleeve toward the first axial position. A front sleeve (30) may be rotationally locked to the rear sleeve up to a predetermined torque threshold.