Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Including means to hold or retard hinged members against...
Patent
1995-02-21
1996-01-02
Bradley, P. Austin
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Including means to hold or retard hinged members against...
16303, 16361, E05F 108
Patent
active
054796784
ABSTRACT:
A hinge includes a first clevis (30), defining a vee-block support (12) and a first limiter surface (44, 46, 48). A cylindrical hinge shaft is supported by the vee-block (12). A second clevis (140) is affixed to the shaft, whereby the second clevis may rotate in response to torques. The second clevis has a limiter surface (148) which coacts with the first limiter to limit rotation of the shaft and second clevis past the deployed state. The second clevis (140) has a cam follower (158) at a predetermined distance from the axis of rotation (2). A cam (100, 104) affixed to the first clevis (30) rotates about a cam axis (3'). The deployed-state engagement between the cam and the follower snugs one end of the shaft into the vee-block, while the rotation limiters snug the other end. A rotational driver (50, 54, 70, 75, 90, 110) urges the cam (100, 104) to rotate in a direction which tends to move the second clevis (140) from the stowed state toward the deployed state. The use of vee-blocks reduces manufacturing tolerances, and the hinge is loose, and rotates easily, from a first (stowed) state until it reaches the second (deployed) state. In the deployed state, the camming action, in conjunction with the stops, tightens the hinge pin into the vee-blocks, making a rigid structure.
REFERENCES:
patent: 2285510 (1942-06-01), Gronberg et al.
patent: 4389748 (1983-06-01), Grossman
patent: 4960256 (1990-10-01), Chihara et al.
patent: 5393018 (1995-02-01), Roth et al.
patent: 5398378 (1995-03-01), Lin
Olikara Philip
Reed David G.
Berard C. A.
Bhargava Adesh
Bradley P. Austin
Martin Marietta Corp.
Meise W. H.
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