Forced guiding to convert a rotational drive movement into a reciprocating movement of a part

摘要

A first cam region (5) formed on a cam pushes a reciprocating part (10) away, while a second cam region (6) formed on a different cam pulls the part (10) forward by means of a flexible element (4). The second cam region is axially displaced with respect to the first cam region. The cams may be arranged on a common shaft.