Overload prevention device of snow-remover

E - Fixed Constructions – 01 – H

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E01H 5/09 (2006.01) E01H 5/04 (2006.01)

Patent

CA 2440697

An overload prevention device (60) of a snow-removing machine which can distinguish between momentary overloading occurring when an auger (23) has hit a curbstone or the like and continuous overloading caused by the auger biting into snow or debris. When overloading arises in the auger, a slide washer (45) provided adjacent to a side face of a worm wheel (38) moving away from the side face is detected by a washer detector switch (53). When a detection signal from this detector reaches a predetermined number of times within a predetermined period, a control unit (105) controls an engine (15) to stop.

Dispositif de prévention de surcharge (60) d'une déneigeuse, qui peut faire la distinction entre une surcharge momentanée, lorsque la tarière (23) heurte une bordure ou un autre élément semblable, et une surcharge continue, lorsque la tarière mord dans la neige ou des débris. Lorsqu'il y a surcharge de la tarière, une rondelle coulissante (45), adjacente à une face latérale d'une roue à vis sans fin (38), s'éloigne de la face latérale et est détectée par le commutateur d'un détecteur de rondelle (53). Lorsque le signal de ce détecteur est émis un nombre prédéterminé de fois pendant une période déterminée, un dispositif de commande (105) entraîne l'arrêt du moteur (15).

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