Multifunction single lever control for lift trucks

G - Physics – 05 – G

Patent

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Details

G05G 9/00 (2006.01) B66F 9/20 (2006.01) G05G 9/047 (2006.01)

Patent

CA 2158375

A single lever hand control (34) for multiple functions having two distinct axes of movement (46, 52). In a stand-up, battery powered lift truck (10) having a mast (20), and a carriage (24) with forks (27), an operator stands facing the side with reference to the direction of travel. Movement of the control lever (34) right to left from a neutral position relative to the direction the operator is facing controls the forward and reverse direction and the speed of the truck. The mast (20) and carriage (24) operations are controlled by the lever (34) being pushed or pulled transversely to the direction of travel. The force required to displace the lever (34) in one direction being less than that required in the other being consistent with the large muscle groups. The movement of the lever (34) is also consistent with the direction of movement of the particular function being performed.

Commande (34) manuelle unique à levier pour fonctions multiples, dotée de deux axes distincts de mouvement (46, 52). Dans un chariot élévateur (10) actionné par batterie, doté d'un mât (20) et d'un chariot (24) à fourches (27), un opérateur se tient debout latéralement par rapport à la direction de déplacement. Le déplacement du levier de commande (34) de la droite vers la gauche à partir d'une position neutre par rapport à la direction faisant face à l'opérateur permet de commander la direction avant et arrière et la vitesse du chariot. Le fonctionnement du mât (20) et du chariot (24) est commandé par le levier (34) poussé ou tiré transversalement à la direction de déplacement. La force nécessaire pour déplacer le levier (34) dans une direction est inférieure à celle nécessaire pour déplacer le levier dans l'autre direction, ce qui correspond aux capacités des différents groupes musculaires utilisés. Le mouvement du levier (34) correspond donc à la direction de mouvement de la fonction particulière à effectuer.

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