Patent ID: 9283688
Filing Date: 2016-03-15
CPC Classification: B23D,B26D,Y10T

Claim Text:
1. A method for cutting block materials, wherein a knife element having a first and a second end is driven by a driving force in a translatory manner in a longitudinal direction for performing a reciprocating movement, the driving force being exerted on the first and second ends of the knife element, the driving of the first end of the knife element being performed by conversion of a first rotary movement into a first translatory movement, and the driving of the second end of the knife element being performed by conversion of a second rotary movement into a second translatory movement in a sense opposed to that of the first translatory movement, a first rotational frequency of the first rotary movement with respect to full revolutions being equal to a second rotational frequency of the second rotary movement, it being provided that, per revolution of the first and second rotary movements, the first rotary movement has a higher angular speed in a first and a second partial range of the revolution than the second rotary movement, and in a third and a fourth partial range of the revolution, the second rotary movement has a higher angular speed than the first rotary movement, and that, at the start and respectively the end of a revolution and at the transition between the second and the third partial ranges of the revolution, the first and second rotary movements have an identical angular speed.