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    • 11. 发明授权
    • Mechanical improvement on an alarm clock
    • 闹钟机械改进
    • US3905189A
    • 1975-09-16
    • US45643474
    • 1974-03-29
    • KIENZLE UHRENFABRIKEN GMBH
    • SIEFERT ROLANDSECKINGER HANSKROSCHE HERBERT
    • G04B23/02G04B37/14
    • G04B23/021
    • There is provided an alarm clock comprising an open-end clock case, a plate carrying the clock mechanism and an adjuster wheel for adjusting clock time and alarm time. The adjuster wheel is mounted for free rotation on a shaft which has a pinion mounted on one end for rotation therewith. The pinion co-acts with the adjuster wheel and drivingly engages the different gears of the clock hand and alarm hand adjusting mechanism. Located between the pinion and the adjuster wheel is a slip coupling. The clock case is provided with an opening through which the adjuster wheel protrudes and has further openings which receive corresponding studs located on the clock mechanism carrying plate. The studs have rubber surfaces and serve as feet for supporting the clock in its normal position of use.
    • 提供了一个闹钟,包括开放式时钟盒,支持时钟机构的板和用于调整时钟时间和闹钟时间的调节轮。 调节轮被安装成在轴上自由旋转,该轴具有安装在一端上的小齿轮以与其一起旋转。 小齿轮与调节轮共同作用并驱动地接合时钟手和报警手动调节机构的不同齿轮。 位于小齿轮和调节轮之间的是滑动联轴器。 时钟壳体设置有开口,调节轮通过该开口突出,并具有接收位于时钟机构承载板上的相应螺柱的另外的开口。 螺柱具有橡胶表面,并用作将脚保持在其正常使用位置的脚。
    • 19. 发明授权
    • Unipolar rotary step motor
    • 单极旋转步进电机
    • US3979616A
    • 1976-09-07
    • US442286
    • 1974-02-13
    • Helmut Stechmann
    • Helmut Stechmann
    • H02K37/16H02K37/00
    • A unipolar rotary step motor having a polarized rotor which turns step-by-step in response to the magnetic field of a control coil as the coil is periodically pulsed by spaced unidirectional current pulses. The magnetic circuit includes, in addition to a magnetizing coil wound about the stator, a permanent magnet whose polarity of magnetization is opposite to that of the magnetization resulting from the coil. The configuration of the air gap between the stator and the rotor is such that the respective zones or regions of influence of, on the one hand, the permanent magnet alone, and, on the other hand, the combination of the permanent magnet with the magnetization resulting from the control coil, each extend over more than 180.degree. of rotor rotation and thus overlap each other. Each current pulse supplied to the control coil causes a complete rotation of the rotor.
    • 具有极化转子的单极旋转步进电动机,其通过间隔的单向电流脉冲周期性地脉冲地响应于控制线圈的磁场而逐步转动。 除了绕定子缠绕的磁化线圈之外,磁路还包括磁化极性与线圈产生的磁化相反的永磁体。 定子和转子之间的空气间隙的构造使得一方面单独的永磁体的相应区域或另一方面,永磁体与磁化的组合 由控制线圈产生的每一个转子各自延伸超过180°的转子旋转,从而彼此重叠。 提供给控制线圈的每个电流脉冲导致转子的完全旋转。