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    • 4. 发明授权
    • Optically coded keyboard arrangement
    • 光学编码键盘布置
    • US4247211A
    • 1981-01-27
    • US16944
    • 1979-03-02
    • Wolfgang BehrendtDetlef BohnhagePeter FriedemannBernhard FrolichReinhold Orzessek
    • Wolfgang BehrendtDetlef BohnhagePeter FriedemannBernhard FrolichReinhold Orzessek
    • B41J5/08B41J5/14
    • B41J5/14B41J5/08
    • An optically coded keyboard arrangement has a plurality of key units arranged to be individually actuated; an actuation sensing arrangement that includes a plurality of light emitters generating light beams and a plurality of detectors each placed in the path of a respective light beam. Each key unit includes a key arranged to be depressed and a coded mask coupled to the key for movement with the key in unison upon displacement of the key and for movement relative to the key in a direction transverse to the path of motion of the key. Each key unit further has a switching spring which, in the position of rest of the associated key has an arcuate shape bulging in one direction and engages at one end a countersupport. As the key is depressed, the switching spring is deformed into a more bulging shape, carrying the mask into a position where it is ready to interrupt the light beams. Upon continuing movement of the key by virtue of the depressing force, a cam causes the tensioned switching spring to jump off the countersupport, whereupon the spring, as it assumes a released state, rapidly moves the mask into the light beam paths.
    • 光学编码的键盘装置具有多个被单独地致动的键单元; 致动感测装置,其包括产生光束的多个发光体和各自放置在相应光束的路径中的多个检测器。 每个键单元包括被设置成被按压的键和编码掩模,该键被耦合到键,用于随着键移位而一致地键移动,并且在与键的运动路径横切的方向上相对于键移动。 每个按键单元还具有开关弹簧,在相关键的其余部分的位置具有在一个方向上凸出的弓形并在一端接合支撑。 当键被压下时,切换弹簧变形为更凸起的形状,将掩模带入准备中断光束的位置。 通过按压力继续键移动键,凸轮使张紧的切换弹簧从支撑架上跳出,于是当弹簧处于释放状态时,弹簧迅速地将掩模移动到光束路径中。
    • 5. 发明授权
    • Typewriter ribbon feed mechanism
    • 打字机送丝机构
    • US4231667A
    • 1980-11-04
    • US17541
    • 1979-03-05
    • Wolfgang BehrendtDetlef BohnhagePeter FriedemannBernhard FrolichReinhold Orzessek
    • Wolfgang BehrendtDetlef BohnhagePeter FriedemannBernhard FrolichReinhold Orzessek
    • B41J33/22B41J33/36B41J33/14
    • B41J33/22B41J33/36
    • A feed mechanism for advancing a cartridged ink ribbon in feeding steps whose length is determined dependent upon the type of the ribbon contained in the ribbon cartridge. The feed mechanism includes a feed roller mounted in the cartridge and operatively connected with the ribbon for advancing the ribbon. The feed mechanism further includes a driving device mounted in the machine and operatively connectable to the drive roller upon insertion of the cartridge in the machine. The driving device has at least two output components arranged to rotate with unlike speeds. The feed mechanism further has a coupling arrangement mounted in the cartridge and continuously operatively connected with the feed roller. The coupling arrangement connects a selected one of the output components to the feed roller when the cartridge is in place in the typing machine. The coupling arrangement is structured such that it connects the feed roller to the selected one of the output components as a function of the type of the associated ribbon.
    • 用于在输送步骤中推进装入墨带的进给机构,其长度取决于容纳在色带盒中的色带的类型来确定。 进给机构包括安装在盒中并与色带可操作地连接以用于推进色带的进给辊。 进给机构还包括安装在机器中的驱动装置,并且在将盒插入机器中时可操作地连接到驱动辊。 驱动装置具有布置成以不同速度旋转的至少两个输出部件。 馈送机构还具有安装在盒中并与进给辊连续可操作地连接的联接装置。 当墨盒在打字机中就位时,联接装置将选定的一个输出部件连接到进给辊。 联接装置被构造成使得其作为相关联带的类型的函数将进给辊连接到所选择的一个输出部件。