Adjustable torsion spring

Details Adjustable torsion spring Adjustable torsion spring

F - Mech Eng,Light,Heat,Weapons

16

F

267/107, 155/22.

F16F 1/14 (2006.01) A47C 3/025 (2006.01) F16F 1/36 (2006.01) F16F 1/40 (2006.01)

Patent

CA 1238057

ADJUSTABLE TORSION SPRING Abstract A spring for creating adjustable torsional resistance between two members which are pivotal relative to each other, The spring comprises a stack of axially aligned elastomer torsion rings (30). A locking ring (34) is secured to and separates adjacent torsion rings, one locking ring being associated with each torsion ring. The assembled stack is firmly attached to one of the pivotal members (14). There are connecting means (46) engageable selectively with each locking ring and with the other relatively pivotal member. The number of torsion rings exposed to pivotal motion between the members to vary the torsial resistance of the spring is determined by engagement between the connecting means and selected locking rings.

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