Woodworking – Rotary cutter – Having slotted bit seat
Patent
1999-08-10
2000-08-01
Bray, W. Donald
Woodworking
Rotary cutter
Having slotted bit seat
1441171, 144218, 407 41, B27C 500
Patent
active
060952113
ABSTRACT:
A cutter device includes a cylindrical cutter seat having opposite end faces and a cylindrical surface between the end faces. A coupling shaft extends co-axially from a respective one of the end faces. The cylindrical surface is formed with an axially extending cutter receiving groove between the end faces to receive a cutting blade therein. The cutter receiving groove is defined by a blade supporting wall, a fastener bearing wall, and a groove bottom interconnecting the blade supporting wall and the fastener bearing wall. Each of two positioning members is sleeved on a respective one of the coupling shafts, and has a large-diameter ring portion and a small-diameter ring portion that extends co-axially therefrom toward a respective one of the end faces of the cutter seat such that the large-diameter ring portion abuts against a respective lateral end portion of the cutting blade and such that a base edge of the cutting blade is supported on the small-diameter ring portion. A longitudinal blade edge of the cutting blade projects relative to the cylindrical surface.
REFERENCES:
patent: 4243085 (1981-01-01), Gemmani
patent: 4449556 (1984-05-01), Colton
patent: 4475425 (1984-10-01), Punater et al.
patent: 4658875 (1987-04-01), Grabovac
patent: 5398739 (1995-03-01), Everts et al.
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