Chipper knife and knife holder assembly

Details Chipper knife and knife holder assembly Chipper knife and knife holder assembly

1994-06-27

1995-11-28

Bray, W. Donald

Woodworking

Rotary cutter

Solid

144176, 144218, 241 92, 241298, 407 47, 407 49, 407113, B27G 1300, B27C 100

Patent

active

054699029

ABSTRACT:
A chopper has a straight knife clamped between a clamping member and a counter knife. The knife, clamping member, and counter knife are collectively positioned in a machined area formed in a holder that is in turn fitted within a larger recess formed in a chopping disk. A first fastener secures the knife holder to the chopping disk, a second fastener secures the clamping member to the knife holder, and a third fastener secures the counter knife to the knife holder. A projection formed in the counter knife engages a groove formed in the knife to properly align the knife and to inhibit entry of fibers into the space between the counter knife and the knife. The holder further includes a series of steps that position the counter knife and the clamping member, respectively, with respect to the holder.

REFERENCES:
patent: 3981337 (1976-09-01), Sundstrom
patent: 4194545 (1980-03-01), Kostermeier
patent: 4462725 (1984-07-01), Satran et al.
patent: 4694995 (1987-09-01), Holmberg et al.
patent: 4784337 (1988-11-01), Nettles et al.
patent: 4907631 (1990-03-01), Krautzberger
patent: 4997018 (1991-03-01), Carpenter et al.

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