Continuous-length switch
    1.
    发明授权
    Continuous-length switch 有权
    连续长度开关

    公开(公告)号:US06455793B1

    公开(公告)日:2002-09-24

    申请号:US09572696

    申请日:2000-05-16

    IPC分类号: H01H302

    摘要: Disclosed is a continuous-length switch that comprises first and second electrode plates. Along side regions of one of the electrode plates are provided conductive regions. Extending from these conductive regions are protrusions. Positioned between the conductive portions and the protrusions are non-conductive portions defined by holes. The protrusions either expand or contract to allow for a bending or winding of the switch to be performed without any buckling of the electrode plates.

    摘要翻译: 公开了一种包括第一和第二电极板的连续长度开关。 沿着一个电极板的侧面区域设置有导电区域。 从这些导电区域延伸是突起。 位于导电部分和突起之间的是由孔限定的非导电部分。 突起可以膨胀或收缩,以允许在没有电极板的任何弯曲的情况下执行开关的弯曲或缠绕。

    Semi-automatic hydraulic excavator
    3.
    发明授权
    Semi-automatic hydraulic excavator 失效
    半自动液压挖掘机

    公开(公告)号:US4377043A

    公开(公告)日:1983-03-22

    申请号:US221564

    申请日:1980-12-31

    CPC分类号: E02F3/439

    摘要: A semi-automatic hydraulic excavator capable of automatically controlling arm and bucket angles when bringing the bucket back to the original excavation posture after completion of dumping excavated soil. For this purpose, arm and bucket angle detectors are provided therein and the automatic control is performed by negatively feeding back values detected by these detectors to minimize deviations between these values and preset values produced from arm and bucket angle setters corresponding to the arm and bucket angles in the original excavation posture. The automatic control mode is selected by a signal from an automatic control command signal producing circuit. With this system, the bucket is swiftly brought back to the original excavation posture from the dumping posture without requiring much operator's skill and efforts.

    摘要翻译: 一种半自动液压挖掘机,能够在倾倒挖土后完成铲斗回到原始挖掘姿势时自动控制铲斗角度。 为此,在其中设置了臂和斗角检测器,并且通过对由这些检测器检测到的值进行负反馈来执行自动控制,以使这些值之间的偏差和从臂和铲斗角度对应的臂和铲斗角度设定器产生的预设值最小化 在原始挖掘姿势。 通过来自自动控制命令信号产生电路的信号来选择自动控制模式。 利用该系统,铲斗从倾倒姿态迅速恢复到原始的挖掘姿势,而不需要很多操作者的技能和努力。