3D ARTICULATED FOUR-LINK CHAIN Russian patent published in 2012 - IPC F16H21/00 F16H21/46 F16J1/02 

FIELD: machine building.

SUBSTANCE: three-dimensional articulated four-link chain comprises drive link, con rod and post. Drive link is coupled with post via spherical piston fitted in hydraulic or pneumatic cylinder. Flexible element is arranged between spherical piston and cylinder body. Note here that spherical piston and con rod, con rod and rocker as well as rocker and post make rotary kinematic pairs of the 5^th class.

EFFECT: mechanism to reproduce spatial curves or to allow displacement of various tools.

1 dwg