KEYLESS CHUCK WITH AUTOMATIC AND MANUAL LOCKING

摘要

A keyless chuck (20) has both an automatic locking feature (34, 36, 38, 40, 42, 44, 68, 90, 92) and a manual locking feature (28, 40, 56, 82). The automatic locking feature provides for automatic locking of the chuck in a tightened state when a predetermined tightening torque has been exceeded. The chuck can be utilized with only the automatic locking feature engaged. If desired, a manual locking feature can also be engaged wherein rotation of the outer sleeve (40) relative to the body (28) is prevented. A retaining feature (58) can be employed to inhibit the movement of the manual locking feature between a locked and unlocked position. The retaining feature thereby avoids accidental engaging or disengaging of the manual locking feature.