| 摘要 |
The boot (1) is slipped onto joint member (2) and is externally restrained by boot strap (3). The boot section has internal convex projection (12) of specific geometry and proportions. If sits within engagement groove (21) of the joint member, defined by the projecting ridges (22). After tightening, the surfaces (11,23) of boot and joint member become contiguous. The parameters of interest are the projection width (b), projection height (f), groove depth (a), ridge height (c) apart from dimensions like strap width (w) and groove width (W). These bear specific inter relationships between them. |
