Cutter shaft for wood machining apparatus

Details Cutter shaft for wood machining apparatus Cutter shaft for wood machining apparatus

B - Operations, Transporting

27

M

144/116

B27M 1/00 (2006.01) B27L 11/00 (2006.01)

Patent

CA 1040072

CUTTER SHAFT FOR WOOD MACHINING APPARATUS ABSTRACT OF THE DISCLOSURE A cutter shaft for a wood machining apparatus is provided with at least one pocket in which a cutting knife is arranged between a pressure plate and a wear part with the cutting edge of the knife projecting beyond the peri- pheral surface of the shaft. A wedge located in a cutout of the shaft, intersecting the pocket, is guided in the cutout moveable substantially in radial direction of the shaft and engaging with a wedge face, inclined at a prede- termined angle with respect to the radial direction, a corresponding face of the pressure plate to press the latter against one side face of the knife and therewith the other side face against said wear part. The aforementioned angle between the two engaging faces is outside the self-locking range and at least 35° and preferably about 42°. The wedge is biased by a spring in radial outward direction and, during rotation of the shaft, also by centrifugal force. - 2 -

255593

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