专利名称：CAM-CONTROLLED PERFORATORS发明人：KOEFFERLEIN R,DT申请号：US3768359D申请日：19710119公开号：US3768359A公开日：19731030
摘要：A code perforator wherein a single rotating perforator cam controls all themotions of a punch and employing a coupling rocker and a coupling element each ofwhich slidably follow the perforator cam. The coupling rocker has a claw-shaped endwhich engages the punch in order to return the punch from the perforating position toan inoperative position. The cam advantageously has a peripheral camming profilecomposed of mutually symmetrically disposed sections for deflection of the couplingrocker and coupling element in phased relation to one another and to provideunambiguous stationary phases.
申请人：SIEMENS AG,DT
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