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    • 8. 发明授权
    • Mechanical timer including cam operated clapper and chimes
    • 机械定时器包括凸轮操作的拍子和铃声
    • US5745441A
    • 1998-04-28
    • US620101
    • 1996-03-21
    • Kirk M. DunsbergenDaniel F. WunderlichMichael D. Lafrenz
    • Kirk M. DunsbergenDaniel F. WunderlichMichael D. Lafrenz
    • D06F58/28G04F3/00H01H43/00
    • D06F58/28G04F3/00D06F2058/2883D06F2058/2896
    • A timer mechanism for an appliance such as a clothes dryer includes a pulser cam and a timer cam. The timer cam has a notch along its perimeter while the pulser cam has a step formed in its perimeter. The cams rotate in opposite directions with a cam follower biased against the cams. A clapper is connected to the cam follower and is adapted to strike a chime if the cam follower is aligned with the notch in the timer cam and the cam follower drops off the step in the pulser cam as the pulser cam rotates past the cam follower. The pulser cam is connected to the timer motor and continuously rotates at a first speed throughout a cycle while the timer cam is connected to the timer motor and the timer dial of the appliance and rotates in the opposite direction at a second slower speed.
    • 用于诸如干衣机的设备的定时器机构包括脉冲发生器凸轮和定时器凸轮。 定时器凸轮沿其周边具有凹口,而脉冲发生器凸轮具有在其周边形成的台阶。 凸轮沿相反方向旋转,凸轮从动件偏压凸轮。 如果凸轮从动件与定时器凸轮中的凹口对准,并且当脉冲发生器凸轮旋转经过凸轮从动件时,凸轮从动件离开脉冲发生器凸轮中的台阶,则适配器能够撞击凸轮从动件。 脉冲发生器凸轮连接到定时器电机,并且在定时器凸轮连接到定时器电动机和器具的定时拨盘并以相反的方向以第二慢的速度旋转时,在整个循环中以第一速度连续旋转。