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    • 7. 发明授权
    • Stepping device
    • 步进装置
    • US3646826A
    • 1972-03-07
    • US3646826D
    • 1970-04-06
    • ERICSSON TELEFON AB L M
    • SAHLGREN ROLF AKEWILJANEN B INGVAR
    • F16H27/02G06M1/04G05G1/00
    • F16H27/02G06M1/041G06M1/044Y10T74/1555Y10T74/214
    • Stepping device for a comptometer provided with a ratchet wheel and a pawl. An oscillating or reciprocating movement of the pawl is changed to a unidirectional rotary movement of the ratchet wheel. The pawl is forked or bifurcated to form shanks on diametrical opposite sides of the ratchet wheel, which shanks are each provided with a projection cooperating with the teeth of the ratchet wheel. A least one of the shanks is provided with another projection situated at a circumferential distance from the projection on the same shank which is greater than the gear pitch of the ratchet wheel and so chosen that when the two projections of the said shank are in contact with the sides or flanks of two teeth of the ratchet wheel then the resultant force of the forces acting at these sides is directed through the rotary axis of the ratchet wheel.
    • 具有棘轮和棘爪的压片机的步进装置。 棘爪的摆动或往复运动改变为棘轮的单向旋转运动。 棘爪被分叉或分叉以在棘轮的径向相对侧上形成柄部,该柄部分别设置有与棘轮的齿配合的突起。 柄中的至少一个设置有另一个突出部,该凸起位于与同一柄上的突出部圆周的距离处,该凸起大于棘轮的齿轮间距,并且因此选择为当所述柄的两个突起与 棘轮的两个齿的侧面或侧面,则作用在这些侧面的力的合力被引导通过棘轮的旋转轴线。