公开(公告)号：US5660106A

公开(公告)日：1997-08-26

申请号：US572804

申请日：1995-12-15

申请人： Franz Pitz ,  Anders Berndtsson

发明人： Franz Pitz ,  Anders Berndtsson

IPC分类号： B41J1/30 ,  B41J1/32 ,  B41K3/12 ,  B41J1/60

CPC分类号： B41K3/123

摘要： A printing unit has a plurality of type wheels with types on its circumference which are rotatable on a common shaft and are driveable on it by means of a slip coupling. Each type wheel has an associated feeler device that ascertains its position and a pawl for engagement with the type wheel, with an actuator that is triggerable as a function of the feeler device via a control unit, and by the actuator the pawl can be controlled between a blocking position and a release position. The drive device serving the purpose of intermittently driving the shaft has per printing unit one drive shaft, operationally coupled to the shaft, with a driving gear wheel and one common stationary disc associated with a plurality of printing units disposed in the circumferential direction. On the pitch Circle of the respective driving gear wheel, this disc has a toothed segment associated with the gear wheel, with which segment the driving gear wheel can be brought into engagement upon revolution of the printing unit and hence for the length of the setting time.

摘要翻译： 印刷单元具有多个类型的轮，其类型在其圆周上可在公共轴上旋转并且可通过滑动联接器在其上驱动。 每个类型的轮具有确定其位置的相关联的探测器装置和用于与型轮接合的棘爪，具有通过控制单元作为触发装置可触发的致动器，并且通过致动器可以将棘爪控制在 阻塞位置和释放位置。 用于间歇地驱动轴的驱动装置具有每个印刷单元一个可操作地联接到轴的驱动轴，驱动齿轮和与沿圆周方向设置的多个印刷单元相关联的一个公共固定盘。 在相应的驱动齿轮的节距圆上，该盘具有与齿轮相关联的齿形段，驱动齿轮在该段上可以在打印单元旋转时与其啮合，因此在设定时间长度 。