Articulated mechanism comprising a cable reduction gear for...

Details Articulated mechanism comprising a cable reduction gear for... Articulated mechanism comprising a cable reduction gear for...

B - Operations, Transporting

25

J

B25J 9/10 (2006.01) B25J 9/04 (2006.01)

Patent

CA 2466893

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.

Une liaison à câble de transmission (14) entre une poulie motrice (15) et une poulie entraînée (22) faisant tourner un organe mobile (5) présente deux brins (23, 24) reliant la poulie entraînée (22) à des poulies folles (17, 18) qui sont sensiblement tangents à un axe (Y) de rotation d'une pièce intermédiaire (2) à l'organe (5) et à l'embase (1) sur laquelle le moteur (12) est fixé. Ainsi, le moteur (12) est disposé sur les pièces éventuellement fixes et la rotation du support (2) n'a que peu d'effet sur la tension du câble (14), ce qui lui permet de toujours travailler convenablement. L'invention s'applique surtout aux bras de robots articulés.

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