Control lever for heavy machinery with near-proximity sensing

Details Control lever for heavy machinery with near-proximity sensing Control lever for heavy machinery with near-proximity sensing

G - Physics

05

G

G05G 9/047 (2006.01) B66F 9/20 (2006.01) E02F 9/20 (2006.01) F16P 3/12 (2006.01) F16P 3/14 (2006.01) G05G 1/06 (2006.01) G05G 5/00 (2006.01)

Patent

CA 2400198

A control lever for heavy machinery includes a proximity sensor (12) for reducing the likelihood of inadvertent activation of the heavy machinery components. The proximity sensor is disposed adjacent an operating position of the control implement (20) and detects when an operator's hand is in an operating position on the control implement in accordance with a capacitance of the operator's hand. The sensing circuit (10) outputs an activate signal to a controller circuit (14) for controlling the heavy machinery components when the operator's hand is in the operating position on the control implement. As a consequence, the operator is not required to perform excessive operations to effect control of the heavy machinery and has both hands available for machine operation.

Ce levier de commande de matériel lourd comprend un capteur de proximité (12) destiné à réduire la possibilité d'une activation involontaire des composants du matériel lourd. Ce capteur de proximité est monté au voisinage d'une position de fonctionnement de l'instrument de commande (20) et détecte quand la main de l'opérateur se situe dans une position de commande sur cet instrument, en fonction d'une certaine capacité de la main de l'opérateur. Le circuit de détection (10) produit un signal d'activation en direction d'un circuit de commande (14) servant à commander les composants du matériel lourd lorsque la main de l'opérateur se situe sur l'instrument de commande, dans une position de commande. En conséquence, il n'est pas demandé à l'opérateur d'exécuter des efforts excessifs pour commander le matériel lourd, et l'opérateur peut garder les deux mains disponibles pour commander le matériel lourd.

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