Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Including means to hold or retard hinged members against...
Patent
1994-11-08
1996-10-15
Rachuba, M.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Including means to hold or retard hinged members against...
E05D 1108
Patent
active
055641636
ABSTRACT:
A lockable hinge assembly for selectively rotatably locking a first hinge member to a second hinge member includes a first generally cylindrical member and a second member rotatably coupled to the first member. A wrap spring is interconnected between the first and second members. The wrap spring is movable with respect to the first member to control an amount of frictional torque applied between the wrap spring and the first member. An actuator member is in operative engagement with the wrap spring. The actuator is movable between first and second positions to move the wrap spring with respect to the first member to control the amount of frictional torque applied between the wrap spring and the first member such that when the actuator is in the first position a first amount of frictional torque is applied between the wrap spring and the first member to allow the first and second members to rotate with respect to each other, and when the actuator is in the second position a second amount of frictional torque is applied between the wrap spring and the first member to rotatably lock the first member to the second member.
REFERENCES:
patent: 2645446 (1953-07-01), Ulrich
patent: 5010983 (1991-04-01), Kitamura
patent: 5088156 (1992-02-01), Hosoi
patent: 5173837 (1992-12-01), Blackwell et al.
patent: 5197704 (1993-03-01), Kitamura
patent: 5211368 (1993-05-01), Kitamura
patent: 5231734 (1993-08-01), Rude
Lowry David A.
Novikov Yevgeny
Cema Technologies, Inc.
Gurley Donald M.
Rachuba M.
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