Cutting – Operation controlled by detector means responsive to work – Actuation of tool controlled by work-driven means to measure...
Patent
1990-10-17
1992-03-31
Phan, Hien H.
Cutting
Operation controlled by detector means responsive to work
Actuation of tool controlled by work-driven means to measure...
83428, 83490, B26D 122, B26D 502
Patent
active
050997327
ABSTRACT:
Disclosed herein is a sheet cutting apparatus suitable for use in pre-cutting off an edge portion of a sheet of a large area. The apparatus comprises a sheet transfer mechanism; a first rotating shaft rotated through the torque of a motor; a turnable frame attached angularly movably along a circular orbit to the first rotating shaft; a second rotating shaft supported rotatably by the turnable frame so as to extend in a radial direction of the circular orbit of the turnable frame and meshed with the first rotating shaft to rotate therewith; a cutter blade and a backing blade, both, rotated by the torque of the second rotating shaft; and a turn control section for angularly moving reciprocally the turnable frame between an initial position at which the surface of revolution of the cutter blade and backing blade extends in a direction transferring a sheet and a separated position at which the cutter blade and backing blade turn aside from the transfer path of the sheet.
REFERENCES:
patent: 1235691 (1917-08-01), Jagenberg
patent: 2792858 (1957-05-01), Bryant
patent: 3815458 (1974-06-01), Jirousek
patent: 4358978 (1982-11-01), Lawson
patent: 4605392 (1986-08-01), Achepohl et al.
patent: 4638701 (1987-01-01), Oberlander et al.
patent: 4784030 (1988-11-01), Waring
Hashida Yoshisuke
Kamei Yoshiharu
Takaoka Hideo
Phan Hien H.
Sun Seiki Co., Ltd.
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