Kinematic chain with an arm comprising a curved portion and parallel kinematics transmission structure with such kinematic chains

摘要

A kinematics chain (6) for a device for transmitting movements comprising a parallel kinematics transmission structure providing three degrees of freedom, the parallel kinematics transmission structure comprising a base member (2) and a moveable member (4), the kinematics chain (6) comprising a first arm (8) adapted to be coupled to the base member (2) and comprising a curved portion (52).