| 摘要 |
A drill/driver chuck mechanism has a cylindrical member (2) with a central axial bore (4). A plurality of further bores (6) are slanted with respect to the centra l axial bore (4). Jaws (8) each associated with a bore (6) are moveable via a jaw actuato r (10). A jaw locking means (32-60) is coupled to the jaw actuator (10). The jaw locki ng means may move between an open position and a closed position such that the jaws may be locked within their respective bore (6) regardless of the degree of protrusion of the jaws (8) into the central axial bore (4). |
