| 摘要 |
<p>A tool of the type having a drive stud (10) for receiving and releasing a tool attachment includes an opening (16) in the drive stud (10) and a locking pin (24) movably mounted in the opening (16). The opening (16) defines first and second ends (18, 20), and the first end (18) of the opening (16) is located at a portion of the drive stud (10) constructed for insertion into the tool attachment. An actuating member (34) is movably positioned on the drive stud (10), and the actuating member (34) defines a sliding surface (44) that engages the pin (24). A first spring (48) biases the sliding surface (44) toward the pin (24), and a second, weaker spring (50) biases the pin (24) toward the sliding surface (44). The first spring (48) reacts against a ring (63) that is disposed between the spring (48) and a shoulder (64) formed on the tool. The shoulder (64) extends away from the longitudinal axis of the drive stud (10) by a lesser distance than the spring (48) or the ring (63).</p> |
