| 摘要 |
A chuck key is provided which has a handle member at one end and a pilot at the other end of the key. A pinion is provided around and adjacent the pilot. The pinion has a cylindrical recess which is coaxial with the axis of the pilot and provides a space between the pilot and the pinion. An ejector member is also provided which comprises a cylindrical collar. The collar extends in the cylindrical recess and slidably embraces the pilot. The collar is spring-biased to extend to a position beyond the forwardmost surface of the pinion. The collar is movable into the recess when pressure is applied to the key for use thereof in a chuck. The collar acts to eject the key from the chuck when the pressure is released. |
