ARTICULATED MECHANISM COMPRISING A CABLE REDUCTION GEAR FOR USE IN A ROBOT ARM

摘要

The invention concerns a transmission cable link (14) between a drive pulley (15) and a driven pulley (22) rotating a mobile member (5) comprising two strands (23, 24) linking the driven pulley (22) to idle pulleys (17, 18) which are substantially aligned with an axis (Y) of rotation of an intermediate part (2) between the member (5) and the base plate (1) whereon the motor (12) is fixed. Thus, the motor (12) is arranged on the two optionally fixed parts and the rotation of the support (2) has hardly any effect on the tension of the cable (14), thereby enabling its constant proper operation. The invention is particularly applicable to articulated robot arms.