| 摘要 |
<p>Bump stop 10 for a vehicle closure (110, Fig. 1) progressively damps movement of closure 110 by distortion of rolling diaphragm 23 and of wall 25. Stop 10 may have a shaft 13 whose extension from housing 11 is height adjustable by ratchet teeth (16, 17, Fig. 1); and locked by a key 19. The force to adjust the ratchet teeth is greater than the force to reduce gap C 0 (Fig. 3) between head 18 and shaft 13, so that head 18 and diaphragm 23 spring back after height adjustment, to contact closure 110 and to dampen its vibrations while driving. If gap C 0 is closed, e.g. under slam conditions, the bump stop stiffens rapidly to brake closure movement. Shaft 13 may comprise an upstanding ring (26, Fig. 3) under head 18; which may comprise rings and ribs (27 and 28, Fig. 5).</p> |
