Actuator assembly for agricultural sprayers

A - Human Necessities – 01 – C

Patent

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Details

A01C 23/00 (2006.01) A01M 7/00 (2006.01) B05B 15/08 (2006.01) B05B 15/10 (2006.01)

Patent

CA 2216097

An actuator (10) is connectable to a lift arm (LA) of an agricultural vehicle (AT) to sense whether the lift arm is in a raised or lowered position and thereby disable or enable the flow of agricultural chemicals to a spray head (SH) associated with the vehicle. The actuator includes a cylindrically-shaped annular support housing (14) connected to the lift arm and positioned in a vertical mounting plane. A switch (26) within said annular support housing may be turned about an axis. The gravity-operated switch (26) is disposed in a plane which is perpendicular to the mounting plane and senses whether the lift arm is in its raised or lowered positions and, in response, controls the flow of chemicals. Actuation of the switch (26) is adjustable by selective turning movement which angularly adjusts the plane.

Un dispositif d'actionnement (10) peut être relié à un bras de levage (LA) d'un véhicule agricole (AT) pour détecter si le bras de levage est levé ou abaissé et pour invalider ou valider, en conséquence, l'écoulement de produits chimiques en direction d'une tête de pulvérisation (SH) associée au véhicule. Le dispositif d'actionnement comprend un carter (14) de support, annulaire et de forme cylindrique, relié au bras de levage, et positionné dans un plan de fixation vertical. Un interrupteur (26) dans le carter de support annulaire peut être tourné autour d'un axe. L'interrupteur commandé par gravité (26) est placé dans un plan qui est perpendiculaire au plan de fixation. Il détecte si le bras de levage est en position levée ou abaissée et, en réponse, commande l'écoulement de produits chimiques. L'actionnement de l'interrupteur (26) peut être réglé par un mouvement de rotation sélectif, qui ajuste le plan de manière angulaire.

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