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    • 1. 发明授权
    • Actuator
    • 执行器
    • US5394288A
    • 1995-02-28
    • US989043
    • 1992-12-10
    • Toru NishidaNaoki Kobayashi
    • Toru NishidaNaoki Kobayashi
    • F16H25/20H02H7/085H02K7/06H02K7/118H02H5/04
    • H02K7/06F16H25/2015H02H7/0853F16H2025/2081F16H25/2204H02H7/0851H02K7/118Y10T74/18576
    • An actuator in which an output shaft can be made to stop by a simple structure and in which actuator assured restart of the output shaft can be performed. The actuator comprises a motor, an output shaft provided with an external threading, and a connecting member having an internal threading engaged with the external threading of the output shaft. The actuator further comprises a resilient member for applying a predetermined load to the output shaft when the output shaft reaches the end of its moving range. The connecting member may comprise an internal screw member having a first protrusion formed on an outer surface thereof and a gear member having a second protrusion. When the second protrusion impacts with the first protrusion, a large starting torque is obtained. Further, two PTC thermistors are provided in a protection circuit, each thermistor allows flow of a current in only one direction, so as to prevent a reduction of a starting current.
    • 可以执行致动器,其中输出轴可以通过简单的结构停止,并且可以执行致动器确保输出轴的重新启动。 致动器包括电动机,具有外部螺纹的输出轴以及具有与输出轴的外部螺纹接合的内部螺纹的连接构件。 致动器还包括弹性构件,用于当输出轴达到其移动范围的终点时,将预定的载荷施加到输出轴。 连接构件可以包括内螺纹构件,其具有形成在其外表面上的第一突起和具有第二突起的齿轮构件。 当第二突起与第一突起碰撞时,获得大的启动扭矩。 此外,在保护电路中设置两个PTC热敏电阻,每个热敏电阻允许仅在一个方向上流动电流,以便防止启动电流的降低。
    • 7. 发明授权
    • Speed calculation device, speed estimation device, image forming device, and storage medium
    • 速度计算装置,速度估计装置,图像形成装置和存储介质
    • US08333450B2
    • 2012-12-18
    • US12635850
    • 2009-12-11
    • Toru NishidaHiroaki SatohSusumu KibayashiTakeshi Zengo
    • Toru NishidaHiroaki SatohSusumu KibayashiTakeshi Zengo
    • B41J29/38
    • G01P3/489B41J11/42
    • A speed calculation device is provided. The generation component generates a plurality of pulse signals with different phases in accordance with rotation of a rotating body. The detection component detects rises and falls of respective pulses of the plurality of pulse signals generated by the generation component. The duration calculation component, each time a rise or fall is detected by the detection component, calculates a total duration of a pre-specified number of durations representing detection intervals of rises or falls detected prior to the rise or fall currently detected by the detection component. The speed calculation component calculates a speed relating to rotation of the rotating body on the basis of the total duration and a rotation angle of the rotating body that corresponds to one pulse of the pulse signals.
    • 提供速度计算装置。 生成部件根据旋转体的旋转生成具有不同相位的多个脉冲信号。 检测部件检测由生成部件生成的多个脉冲信号的各个脉冲的上升和下降。 持续时间计算部件,每当检测部件检测到上升或下降时,计算出表示在检测部件当前检测到的上升或下降之前检测到的上升或下降的检测间隔的预定数量的持续时间的总持续时间 。 速度计算部件基于与脉冲信号的一个脉冲对应的旋转体的总持续时间和旋转角度来计算与旋转体的旋转有关的速度。