Rock cutting machine

E - Fixed Constructions – 21 – C

Patent

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Details

E21C 25/16 (2006.01) E21C 25/18 (2006.01) E21C 27/12 (2006.01) E21C 27/22 (2006.01) E21D 9/10 (2006.01)

Patent

CA 2484394

A rock cutting machine including a boom (11) rotatably mounted at a proximal end to a chassis (13) adapted to be placed adjacent a rock face (14) to be cut. The boom extends from the chassis to a distal end adjacent the rock face. A longitudinal boom axis (21) extends between the proximal and the distal ends of the boom and a cutting device (10) is pivotally mounted about a pivot axis (20) adjacent the distal end of the boom. The pivot axis enables wrist movement about the pivot axis by a drive mechanism (29) and is offset from the longitudinal axis of the cutting device (23).

Machine de coupe de pierre qui comporte un bras (11) monté rotatif au niveau de son extrémité proximale sur un châssis (13) adapté pour être placé adjacent à une face de pierre (14) à couper. Le bras s'étend entre le châssis et une extrémité distale adjacente à la face de pierre. Un axe longitudinal (21) de bras s'étend entre les extrémités proximale et distale du bras et un dispositif de coupe (10) est monté pivotant autour d'un axe de pivotement (20) adjacent à l'extrémité distale du bras. L'axe de pivotement, qui permet un mouvement de pivotement du type de celui du poignet, provoqué par un mécanisme d'entraînement (29), est décalé par rapport à l'axe longitudinal du dispositif de coupe (23).

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