Movement actuator

F - Mech Eng,Light,Heat,Weapons – 16 – H

Patent

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Details

F16H 1/22 (2006.01) B60R 1/06 (2006.01) B60R 1/074 (2006.01)

Patent

CA 2182599

There is described a movement actuator (10) comprising: a first actuator part (11; 41) and a second actuator part (12; 20) that are rotatably mounted relative to one another; and an electromotor (73) and a transmission system (60) coupled between the electromotor (73) and the two actuator parts ( 11, 12; 41, 20) for rotating these actuator parts (11, 12; 41, 20) relative to one another. The transmission system (60) comprises a worm wheel (61) and two worms (63, 64) concentrically attached thereto on two sides, preferably manufactured in one piece, the diameter of the worm wheel (61) being greater than the diameters of the worms (63, 64), which worms drive a gear wheel (40) with the interposition of respective intermediate gear wheels (65, 66), so that the movement actuator can be of a particularly compact and even modular design while maintaining its strength.

Mécanisme de commande d'orientation (10) comportant une première pièce motrice (11; 41) et une seconde pièce motrice (12; 20) montées rotatives l'une par rapport à l'autre; un moteur électrique (73) et un système de transmission (60) monté entre le moteur électrique (73) et les deux pièces motrices (11, 12; 41, 20) et destiné à faire tourner ces pièces motrices (11, 12; 41, 20) l'une par rapport à l'autre. Le système de transmission (60) comporte une roue à vis (61) et deux vis (63, 64) fixées de manière concentrique à ladite roue de part et d'autre de celle-ci, et fabriquées de préférence en une seule pièce, le diamètre de la roue à vis (61) étant supérieure aux diamètres des vis (63, 64), et lesdites vis entraînant une roue d'engrenage (40) par l'intermédiaire de roues d'engrenage intermédiaires respectives (65, 66), de sorte que ledit mécanisme puisse avoir une configuration peu encombrante et même modulaire tout en conservant sa résistance.

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