Cutting – Tool or tool with support – Rotatable type
Patent
1996-12-31
1998-07-14
Jones, Eugenia
Cutting
Tool or tool with support
Rotatable type
83676, 8369841, 125 15, 451342, B26D 114, B26D 726
Patent
active
057787514
ABSTRACT:
A blade mounting structure in which a mounted blade is rotated in a well-balanced condition and further the blade can be easily attached to and detached from the apparatus is provided, which structure comprises a mount including a flange and a first cylindrical engagement portion and a first screw portion; a cutting blade including a second engagement portion; and a screw member including a second screw portion, wherein the cutting blade is mounted onto the mount so that the first engagement portion is engaged with the second engagement portion, and the second screw portion is screwed into the first screw portion and wherein the tolerance of the engagement portions, the thickness of the first engagement portion, the gap between the flange and the first engagement portion, and the diameter of the flange are selected to have a particular relationship such that the engagement portions are not engaged under an inappropriate contact condition when the blade is inserted into the mount.
REFERENCES:
patent: 1409758 (1922-03-01), Nichols
patent: 1636722 (1927-07-01), Thibaudeau
patent: 2497217 (1950-02-01), Hall
patent: 4388848 (1983-06-01), Albert
patent: 4901479 (1990-02-01), Helm
Chiba Kiyotaka
Tsuchishima Jiro
Jones Eugenia
Tokyo Seimitsu Co., Ltd
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