Joints and connections – Articulated members – Lockable at fixed position
Patent
1994-09-19
1996-05-28
Knight, Anthony
Joints and connections
Articulated members
Lockable at fixed position
403103, 403 92, 403 84, F16C 1110
Patent
active
055204740
ABSTRACT:
An adjustable coupling including an axle, a fixed toggle mounted around the axle to hold a first frame rod, two movable toggles turned about the axle to hold a second frame rod and a third frame rod respectively, two locating plates mounted around the axle and prohibited from rotary motion relative to the axle and coupled with the movable toggles through a respective toothed joint, two cam holders fixed to the axle at two opposite ends, and two mushroom cam mounted around the axle and engaged with the cam holders, when the mushroom cams are fully received into the cam holders, the movable toggles can be disengaged from the locating plates and turned relative to the axle to adjust the angular positions of the second and third frame rods relative to the axle.
REFERENCES:
patent: 2593368 (1952-04-01), Verderber
patent: 5018405 (1991-05-01), Chiu
patent: 5039118 (1991-08-01), Huang
patent: 5062179 (1991-11-01), Huang
patent: 5123768 (1992-06-01), Franklin
patent: 5358352 (1994-10-01), Klarhorst
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