Methode und Vorrichtung zum Schneiden von schlitzförmigen Einschnitten in Musterteile, geschnitten aus folienförmigem Material.

摘要

In a method and apparatus (10) for cutting a slit notch (64) in a pattern piece (58) during the cutting of the pattern piece (58) from work material consisting of a single sheet or a lay-up of sheets of sheet material the slit notch (64) is cut when a notch point (B) is reached by the cutting tool (32) in its cutting along the line (62) defining the pattern piece (58) periphery. After the slit notch (64) is cut the tool (32) is withdrawn from cutting engagement with the work material (22) and returned to a point (C) associated with a previously cut portion of the peripheral line (62) and spaced rearwardly from the point of furthermost previous advance (B,B') of the tool along the peripheral line (62) before the cutting of the slit notch (64) to assure the cutting of material which may shift in the vicinity of the point (B,B') of furtherest advance between the tool's first and later appearance of at that point, thereby obtaining clean cutting of the pattern piece (58) from the work material (22) allowing it to be easily separated from the waste material (60).