Shear viscous damped hinge

Details Shear viscous damped hinge Shear viscous damped hinge

1994-02-04

1996-08-20

Rachuba, M.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Checks and closers

Liquid

16286, 16277, 16 82, E05F 108, E05F 314, E05F 502

Patent

active

055466320

ABSTRACT:
A shear viscous damped hinge uses a negator spring and a high viscosity fluid to provide a relatively slow and controlled deployment of the hinge. Shear damping of the fluid slows the angular velocity of the hinge. The invention reduces the end of travel impact loads thereby reducing the risk of damage to the hinge and the object rotated by the hinge. The hinge is particularly useful in, but not limited to, spacecraft applications.

REFERENCES:
patent: 3621508 (1971-11-01), Di Noia et al.
patent: 4290168 (1981-09-01), Binge
patent: 4426752 (1984-01-01), Nakayama
patent: 4561614 (1985-12-01), Olikara et al.
patent: 4694530 (1987-09-01), Foggini
patent: 4773242 (1988-09-01), Smith
patent: 4780726 (1988-10-01), Archer et al.
patent: 4828236 (1989-05-01), Inoue
patent: 4884464 (1989-12-01), Grattarola et al.
patent: 4893522 (1990-01-01), Arakawa
patent: 5083343 (1992-01-01), Lee
patent: 5165507 (1992-11-01), Ohshima
patent: 5356095 (1994-10-01), Aker
patent: 5386884 (1995-02-01), Chisholm
Votta, "Constant-Force Springs," Machine Design, Jan. 31, 1963, pp. 102-106 .

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