公开(公告)号：US4006811A

公开(公告)日：1977-02-08

申请号：US636912

申请日：1975-12-02

Applicant: Andreas Metschnabl ,  Gottfried Burkhardt

Inventor： Andreas Metschnabl ,  Gottfried Burkhardt

IPC: B41J33/512

CPC classification number: B41J33/512 ,  Y10T74/18008

Abstract: A reversing device for the longitudinal advance of a ribbon on type printers for the alternating drive of two reels by means of a feed shaft which is selectively drivingly connectable to one of the gears respectively connected to the reels for the ribbon. The drive from the respective winding-up reel to the respective unwinding reel is reversible by a feeler lever controlled by the ribbon coil, by a second lever adapted to be controlled by the feeler lever while being displaceably guided by an interengaging pivot-slot arrangement, and by an eccentric rotating in synchronism with the feed shaft. The eccentric is arranged on a stationarily journalled drive shaft continuously drivingly connected to the feed shaft. The displaceable second lever is designed as a pendulum lever displaceable about perpendicularly to the longitudinal axis of the feed shaft and is pivotal about parallelly to the longitudinal axis of the feed shaft. The pendulum lever comprises a pin engaged by the feeler lever for the longitudinal displacement thereof and also comprises two abutments which for purposes of reversing the transporting direction selectively cooperate with one of two abutments on the feed shaft for an axial displacement thereof.

Abstract translation: 一种用于在类型打印机上纵向前进的换向装置，用于通过进给轴交替驱动两个卷盘，该进给轴可选择性地可驱动地连接到分别连接到用于带的卷轴的齿轮中的一个。 通过由带状线圈控制的触发杆由相应的卷绕卷轴到相应的退绕卷轴的驱动可以由适于在由相互接合的枢转槽布置可移位地引导的探针杆控制的第二杆处， 并且通过与进给轴同步的偏心旋转。 偏心轮设置在连续驱动地连接到进给轴的静止轴颈驱动轴上。 可移动的第二杠杆被设计为摆动杆，其可以垂直于进给轴的纵向轴线移动，并且可绕着进给轴的纵向轴线枢转。 摆杆包括一个由触角杠杆接合以用于其纵向位移的销，并且还包括两个邻接件，为了使输送方向反向，选择性地与进给轴上的两个邻接件中的一个配合地进行轴向位移。