Unidirectional flexural pivot

Details Unidirectional flexural pivot Unidirectional flexural pivot

1981-03-16

1983-09-20

Levy, Stuart S.

Cutlery

F16C 1112

Patent

active

044051840

ABSTRACT:
A pair of generally coaxial mutually rotatable cylindrical outer ring members (34, 36) are held in spaced apart relationship by three parallelogram shaped relatively thin, flexible, flat planar spring elements (48, 50, 52) which are substantially inextensible in length and are joined to the inside of the outer ring members and held in position by arcuate inner ring segments (38, 40 . . . 46), three for each outer ring member, which respectively span an arc of substantially 120.degree.. The parallelogram shape of the spring elements (48, 50, 52) provides a slanted interconnection between the outer ring members (34, 36). The direction of slant, moreover, determines in which direction the spring elements (48, 50, 52) can flex or bend unidirectionally to relieve the compression stress imparted thereto by any mutual angular rotation of the outer ring members (34, 36).

REFERENCES:
patent: 854426 (1907-05-01), Lowry
patent: 1013786 (1912-01-01), Lambert
patent: 1334557 (1920-03-01), Ruff
patent: 1602912 (1926-10-01), Leipert
patent: 1952970 (1934-03-01), Brofelth
patent: 2484823 (1949-10-01), Hammond
patent: 3060334 (1962-10-01), Favre
patent: 3181851 (1965-05-01), Troeger
patent: 3188071 (1965-06-01), Owen
patent: 3469417 (1969-09-01), Wakelin
patent: 3909077 (1975-09-01), Leonarduzzi

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