Locking mechanism

Details Locking mechanism Locking mechanism

1985-11-19

1987-01-13

Kundrat, Andrew V.

Joints and connections

Articulated members

Lockable at fixed position

403103, 248412, F16C 1100, F16D 112

Patent

active

046361030

ABSTRACT:
The invention relates to a locking mechanism for use with two members which are mutually rotatable about a common pivot. The two members are a platform body (4) and a leg (1) therefor which is adjustable so as to vary the height of the platform body. The locking mechanism comprises a flat surface (6) on one of the members tangential to an opposing convex cylindrical surface on the other member, the cylindrical surface being coaxial with the pivot (2). The two surfaces define therebetween a substantially V-shaped gap which accommodates a cylindrical roller (7) in tangential frictional contact with the opposing surfaces. The roller is biased by releasable biasing means (9) towards the apex of the V-shaped gap, thereby to prevent rotation of the members in a direction which tends to urge the roller towards the apex, except on release of the biasing means, and freely to permit rotation in the opposite direction.

REFERENCES:
patent: 3467352 (1969-09-01), Bohler

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