Cutter shaft for wood machining apparatus

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

1976-07-01

1978-01-17

Simpson, Othell M.

Woodworking

Rotary cutter

Having slotted bit seat

83698, 144218, 407 51, B27G 1300

Patent

active

040686949

ABSTRACT:
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 peripheral surface of the shaft. A wedge located in a cutout of the shaft, intersecting the pocket, is guided in the cutout movable substantially in radial direction of the shaft and engaging with a wedge face, inclined at a predetermined 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.degree. and preferably about 42.degree.. The wedge is biased by a spring in radial outward direction and, during rotation of the shaft, also by centrifugal force.

REFERENCES:
patent: 1713066 (1929-05-01), Wolf
patent: 3865164 (1975-02-01), Sybertz

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