| 摘要 |
<p>A push-on/quick release locking arrangement is mounted on an extension (10) having a cylindrical body (12) and square drive end (14). An inclined transverse bore (16) in the drive end intersects opposed flat faces (34) and mounts lock balls (18) for movement between ''lock'' and ''release'' positions. A grip sleeve (42) with an integral tab (40) projecting from one end is mounted for slidable movement on the body such that the tab (40) is positioned within an axial groove (32) on a flat face intersecting the end of the bore further from the drive end. A coil spring (54) is held between a groove in the body and a shoulder of the sleeve so as to bias the sleeve towards the drive end and the tab (40) into the axial groove.</p> |
