| 摘要 |
<p>A connector (10) or fastener (200) is used for connecting first and second parts (12, 14). The connector (10) includes a coupling assembly (11) for mounting on the first part (12), the assembly (11) comprising a member (30) carrying a first thread (32) for engaging a corresponding second thread (18) carried by the second part (14); a drive assembly normally rotatably coupled to the threaded member (30) and having a driven member (28) adapted for rotation by hand or by a tool; and a coupling spring (40) acting between the threaded member (30) and a drive portion (34) of the drive assembly for maintaining the rotational coupling of the threaded member (30) relative to the drive assembly by maintaining the relative axial positioning thereof. Rotation of the driven member (28) advances the threaded member (30) along the second thread (18) until the mating faces of the first and second parts (12, 14) are brought together and the drive portion (34) is restrained against further axial movement by the first part. Further rotation of the driven member (28) with advancement of the threaded member (30) is only possible until the axial loading on the first and second parts (12, 14), corresponding to the force acting between the drive portion (34) and the first part (12), reaches a predetermined value and the coupling spring (40) disengages to permit rotation of the driven member (28) independently of the threaded member (30).</p> |
