Woodworking – Rotary cutter – Having slotted bit seat
Patent
1995-05-24
1996-09-24
Bray, W. Donald
Woodworking
Rotary cutter
Having slotted bit seat
144218, 144239, 144241, 407 46, 407 49, B27G 1300
Patent
active
055581420
ABSTRACT:
To provide a reliable, yet resilient, seat for a cutter blade or knife (13) in a rotary milling body (11), the milling body is formed with a bore (21) which intersects the inner wall (19) of a recess (12) in the circumference of the milling body (11). A roll pin is inserted in the bore, retained therein, but projecting over the plane of the wall surface (19). The knife (13) is formed with a longitudinal groove (27), having opposite flat angled side walls (60), which fit around the projecting surface of the roll pin. A holding element (15), fitted into the recess, bears against knife and resiliently clamps it against the roll pin. Preferably, the holding element (15) and the knife (13) are formed with an interengaging projection (41) and recess (42) arrangement.
REFERENCES:
patent: 2731991 (1956-01-01), Cowley
patent: 3559261 (1971-02-01), Greenleaf
patent: 3791429 (1974-02-01), Morris
patent: 3838724 (1974-10-01), Buchacher et al.
patent: 4449556 (1984-05-01), Colton
patent: 4702424 (1987-10-01), Widlak
patent: 5163490 (1992-11-01), Meis
patent: 5209278 (1993-05-01), Carpenter et al.
Ehrle Bruno
Herzog Rolf
Mosmann Andreas
Riedberger Reto
Weber Alfred
Bray W. Donald
Oertli Werkzeuge AG
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