Self-unjamming motorized trimming apparatus, particularly a...

A - Human Necessities – 01 – G

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A01G 3/04 (2006.01) A01G 3/053 (2006.01)

Patent

CA 2742196

The present invention relates to a motorized trimming apparatus comprising two blades (3A, 3B) placed side-by-side, has triangularly or trapezoidally cut teeth spaced apart from each other, at least one of said blades being movable to enable the cutting by shearing of wood inserted between said teeth, and connected to a drive device (13), characterized in that the apparatus comprises a means for controlling the drive device, said control means (14) being constructed or configured so as to detect stops in movement of the movable blade(s) and to instantaneously and automatically control the reversal of the rotational direction of said drive device and thus control the reversal of the direction of movement of said movable blade(s).

Appareil de taille motorisé, comportant deux lames accolées l'une à l'autre et munies de dents de coupe triangulaires ou trapézoïdales espacées (3A, 3B), l'une de ces lames au moins étant mobile permettant la coupe par cisaillement des bois engagés entre lesdites dents, et reliée à un dispositif de motorisation (13), caractérisé en ce qu'il comporte un moyen de pilotage du dispositif de motorisation, ce moyen de pilotage (14) étant agencé ou configuré pour détecter les arrêts du mouvement de la ou des lames mobiles et pour commander instantanément et automatiquement l'inversion du sens de rotation dudit dispositif de motorisation et donc, l'inversion du sens de déplacement de ladite ou desdites lames mobiles.

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