Unidirectional flexural pivot

摘要: 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 substantially inextensible length and joined to the inside position arcuate inner segments (38, 40 . 46), for each member, respectively span an arc 120°. The shape provides a slanted interconnection between 36). direction slant, moreover, determines can flex or bend unidirectionally relieve compression stress imparted thereto any mutual angular rotation