<p>In a notching machine using a blade assembly of upper and lower knives mounted respectively on a vertically moving ram and a machine table and each comprising two individual blades forming with their cutting edges a coinciding vertex angle which may be changed by turning the blades relative to each other around a vertical axis of rotation that extends in parallel with the ram near the noses of the knives, a third blade component is provided at least for the upper knife for forming its nose portion with a unitary cutting edge that complements the cutting edges of the two other blades of the upper knife for confining its vertex angle.</p>
申请公布号
DE3604516(C1)
申请公布日期
1987.05.27
申请号
DE19863604516
申请日期
1986.02.13
申请人
LUDWIG BOSCHERT MASCHINEN- UND APPARATEBAU GMBH & CO KG, 7850 LOERRACH, DE