摘要 |
A latch member (46) pivotally disposed externally of a coupling nut (40) rotatably mounted on one shell (10) for threadably connecting to another shell (20), the latch member and having an end portion (50) thereof extending forwardly of the coupling nut, mating tapered surfaces (55, 30) formed on an inner face (55) of the latch member and annularly around the other shell and longitudinally and radially extending splines (39, 59) disposed around the mating tapered surfaces and configured to slidably interengage to prevent and/or resist uncoupling rotation, the latch member (46) pivoting and biasing the splines into engagement and being adapted to provide a manual release mechanism to laterally disengage the splines. The splines are so positioned by the latch member as to be normally out of engagement until full mating of the shells is achieved assembly.
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