Cutting – Rotatable disc tool pair or tool and carrier – Carrier for rotatable tool movable during cutting
Patent
1990-04-13
1991-03-26
Yost, Frank T.
Cutting
Rotatable disc tool pair or tool and carrier
Carrier for rotatable tool movable during cutting
83489, 83578, 83614, 83631, B23D 1902, B26D 118, B26D 508
Patent
active
050019554
ABSTRACT:
A movement and rotational movement of the movable blade of the paper-cutter of this invention is constructed with a mechanically engaging mechanism such as a screw mechanism or a pinion/rack mechanism, so that there are no technical problems found with the conventional type of the paper-cutters such as slackening and/or cutting-off of the wire and coming-off of the wire from the drum. Moreover, since it is not necessary for an additional means for providing tension force on the wire, a longer-term stable cutting operation can be achieved. Furthermore, since the fluctuation in the manufacturing accuracy and deformation caused during the production process of the screw grooves as well as case body itself can be controlled and minimized by the screw mechanisms to some extent, the strict requirements for components accuracy can be reduced, resulting in an effective cost-down.
REFERENCES:
patent: 1147458 (1915-07-01), Steely
patent: 1645924 (1927-10-01), Palmigiano, Jr.
patent: 2846005 (1958-08-01), Wilson
patent: 4340441 (1982-07-01), Thwaites et al.
patent: 4843497 (1989-06-01), Leydon
patent: 4864906 (1989-09-01), Hall
Peterson Kenneth E.
Sumitsu & Company, Limited
Yost Frank T.
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