| 摘要 |
The fitting has two outer (1,7) and one inner (10) scissors arms which are linked together. One of the outer arms carries a motor with a spindle with one end facing the joint between the outer arms. The forward end of a push-pull sleeve is coupled to the spindle via a threaded section and carries a guide piece which slides in the outer arm. In addition or alternatively, a seal (25b) between the profile of the outer arm (7) and the outer surface of the sleeve (21) is coupled to the spindle (20) via a threaded section (22). |
