Cutlery – Cutting tools – With blade moving means
Patent
1993-11-01
1994-10-04
Rada, Rinaldi I.
Cutlery
Cutting tools
With blade moving means
30285, 30286, A01D 7518
Patent
active
053514033
ABSTRACT:
A protective shield for a free-cutting tool having a rotatable cutting head with a cutting thread that extends radially upon rotation of the cutting head and thus defines a cutting plane, has a support section for fixedly connecting the shield to the tool above the cutting plane. A circumferential wall is connected to the support section and extends about a portion of the circumference of the cutting plane. The circumferential wall extends axially from the support section to at least the cutting plane and has axially extending lateral edges arranged perpendicular to a direction of rotation of the cutting head. The lateral edges each have a round transition into a bottom edge of the circumferential wall. A crosscutting blade for cutting to length the cutting thread is connected to the inside of the circumferential wall at its leading portion in the direction of rotation. The crosscutting blade extends over the axial height of the circumferential wall. At the leading portion the round transition has a projection positioned in the direction of rotation in front of the crosscutting blade. The projection ensures that a cutting thread of an excess length is bent and forced to enter into the protective area of the protective shield to be cut to length.
REFERENCES:
patent: 4550499 (1985-11-01), Ruzicka
patent: 4641431 (1987-02-01), Leming et al.
patent: 4651422 (1987-03-01), Everts
patent: 4823464 (1989-04-01), Gorski
patent: 4864728 (1989-09-01), Kloft et al.
Becker Georg
Hoffmann Joachim
Hummel Thilo
Karner Josef
Schlessman Helmut
Firma Andreas Stihl
Rada Rinaldi I.
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