Arrangement in control device of work machine

Details Arrangement in control device of work machine Arrangement in control device of work machine

H - Electricity

01

H

H01H 1/16 (2006.01) G06F 3/033 (2006.01) H01H 9/04 (2006.01)

Patent

CA 2641920

The invention relates to a method for removing impurities from a control device of a work machine and to a control device. The control device (1) comprises a trackball (4), from which impurities can be flushed away. Flushing medium and impurities collected below the trackball can be led along a discharge channel outside the control device. The entry of impurities into a component space (10a) comprising electronics is prevented. The discharge channel can have a collecting cup (11) for collecting impurities and leading them by means of a hose (14) to a connecting part (15) that has a conical mating surface (16) for receiving the hose.

L'invention concerne un procédé d'élimination d'impuretés d'un dispositif de commande de machine de travail, ainsi qu'un dispositif (1) de commande comportant un trackball (4) d'où les impuretés peuvent être purgées. Un agent de purge et les impuretés collectées sous le trackball peuvent être acheminés le long d'un canal d'évacuation à l'extérieur du dispositif de commande. L'entrée des impuretés dans un espace (10a) à composants comportant de l'électronique est empêchée. Le canal d'évacuation peut présenter une cuvette (11) de collecte destinée à collecter les impuretés et à les acheminer au moyen d'un tuyau flexible (14) vers une pièce (15) de branchement présentant une surface conique (16) d'accouplement destinée à recevoir le tuyau flexible.

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