Shredder drive control device and method of drivingly...

B - Operations – Transporting – 02 – C

Patent

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Details

B02C 18/06 (2006.01) B02C 18/00 (2006.01) B02C 18/24 (2006.01) H02P 6/08 (2006.01) H02P 7/06 (2006.01)

Patent

CA 2362790

A shredder drive control device which shreds sheets of paper by driving a shredding mechanism by a motor capable of increasing the shreddable number of paper sheets and reducing a shredding time for each shredded paper sheets within the allowable range of an input current, characterized by comprising the motor (4) driving the shredding mechanism (5) for shredding sheets of paper (10) and a control means (1) controlling a power supplied to the motor located between the motor and a commercial power supply (13), wherein the motor has such a characteristic that, when a supplied voltage is used as a parameter, a motor torque generally plummets linearly as a motor speed increases, and the control means lowers the speed of the motor as a torque required for the shredding of the paper sheets loaded on the shredding mechanism increases so as to control a power input from the commercial power supply so that it does not exceed a specified value.

L'invention porte sur une commande de déchiqueteur de feuilles de papier dont le mécanisme, entraîné par un moteur, permet d'accroître le nombre de feuilles de papier traitées ou de réduire le temps de traitement de chaque feuille tout en maintenant le courant d'alimentation à l'intérieur des limites autorisées. Le déchiqueteur comprend un moteur (4) entraînant le mécanisme (5) de déchiquetage des feuilles (10) et une commande (1) régulant le courant alimentant le moteur placée entre ledit moteur et le réseau (13) commercial d'alimentation. Le moteur se caractérise, pour une tension d'alimentation donnée, par une baisse linéaire du couple lorsque le régime croît, la commande intervient pour abaisser le régime lorsque le couple nécessaire au déchiquetage croît, ce qui règle la puissance prélevée sur le réseau pour qu'elle ne dépasse pas la valeur spécifiée.

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