Closure fasteners – Bolts – Multiple
Patent
1975-03-17
1976-04-06
Moore, Richard E.
Closure fasteners
Bolts
Multiple
E05C 330
Patent
active
039485498
ABSTRACT:
A rotatable locking mechanism is provided for releasably securing relatively rotatable members, such as a member which is rotatably positionable with respect to a support member. A releasable ball detent locking assembly is mounted in one of the members for cooperating with selectively disposed indentations in the other member. In one of the embodiments, the detent assembly is mounted within the rotatable member and is provided with a manually actuated release mechanism for selectively positioning such member at one or more predetermined angular relationships with respect to the support member. In the locked condition, the ball detents are caused to protrude from the rotatable member and seat within the indentations formed on the support member. To free the rotatable member, the release mechanism is manually operated to retract the ball detents to a generally recessed or flush relationship with respect to a surrounding wall portion of the rotatable member. During rotation, the ball detents are captivated in their retracted position by a closely confronting wall portion of the support member, against which the ball detents are continuously urged by a spring bias associated with the release mechanism. The members are free to rotate in this condition until the ball detents encounter an indentation in the support member whereupon the detents snap outwardly into their locked, protruding condition. This locking mechanism is embodied in structures which are useful in a variety of applications including rotatable lockable struts, collapsible lockable handles, and lockable latches.
REFERENCES:
patent: 2501581 (1950-03-01), Rieger
patent: 3148903 (1964-09-01), Foster
patent: 3214947 (1965-11-01), Wikkerink
Avibank Mfg. Inc.
Moore Richard E.
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