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    LINEAR ACTUATOR
    1.
    发明申请
    LINEAR ACTUATOR 审中-公开
    线性执行器

    公开(公告)号：US20110259673A1

    公开(公告)日：2011-10-27

    申请号：US13127719

    申请日：2009-10-14

    申请人： Isao Hayase ,  Kenji Hiraku ,  Masaru Yamasaki ,  Masami Ochiai

    发明人： Isao Hayase ,  Kenji Hiraku ,  Masaru Yamasaki ,  Masami Ochiai

    IPC分类号： F16H25/20 ,  B66F9/24

    CPC分类号： B66F3/08 ,  B66F9/08 ,  F16D41/066 ,  F16H25/2454 ,  Y10T74/18704

    摘要： In a method for utilizing a wedge engagement mechanism as means for retaining an output shaft without requiring a large driving power, there is a need for preventing fatigue life of an actuator from being reduced as a result of stress at contacting portions of parts of wedge engagement portions of the wedge engagement mechanism becoming large.In a linear actuator that converts rotary motion of a drive unit for rotation to linear motion through a rotary motion-to-linear motion conversion mechanism, a one-way mechanism is disposed upstream of the rotary motion-to-linear motion conversion mechanism in a rotational drive path, to thereby inhibit, with a small wedge engagement force, the output shaft from being driven by an external force, achieving reduction in the stress at the contacting portions.

    摘要翻译： 在利用楔形接合机构作为用于保持输出轴而不需要大的驱动力的装置的方法中，需要防止致动器的疲劳寿命由于在楔接合部分的接触部分处的应力而减小 楔接合机构的部分变大。 在将驱动单元的旋转运动通过旋转运动直线运动转换机构转换成线性运动的线性致动器中，单向机构设置在旋转运动直线运动转换机构的上游， 旋转驱动路径，从而以小的楔形接合力阻止输出轴被外力驱动，从而实现接触部分处的应力的减小。

    ELECTRICALLY-DRIVEN OPERATING DEVICE AND WORKING MACHINE INCORPORATING THE SAME
    2.
    发明申请
    ELECTRICALLY-DRIVEN OPERATING DEVICE AND WORKING MACHINE INCORPORATING THE SAME 审中-公开
    电动操作装置和与其同时使用的工作机

    公开(公告)号：US20120303226A1

    公开(公告)日：2012-11-29

    申请号：US13575409

    申请日：2011-01-31

    申请人： Masaru Yamasaki ,  Masami Ochiai ,  Isao Hayase

    发明人： Masaru Yamasaki ,  Masami Ochiai ,  Isao Hayase

    IPC分类号： G06F17/00

    CPC分类号： E02F3/425 ,  B66F9/08 ,  B66F9/20 ,  E02F9/207

    摘要： A highly reliable electrically-driven operating device that can automatically correct balance with a simple structure having a small number of parts used, and a working machine incorporating the same are provided. A first electrically-driven actuator 1 includes a first electric motor M1 having a rotor position sensor S. A second electrically-driven actuator 2 includes a second electric motor M2 not having a rotor position sensor. Outputs of the first electrically-driven actuator 1 and the second electrically-driven actuator 2 are combined by an unequal-length link 3. The first electric motor M1 has a positional relationship between a rotor and a magnetic field under an operating condition thereof, the positional relationship producing a maximum torque of the first electric motor; and the second electric motor M2 is configured to produce torque reduced from a maximum torque of the second electric motor under an operating condition thereof by being out of a positional relationship between a rotor and a magnetic field, the positional relationship producing the maximum torque of the second electric motor.

    摘要翻译： 提供了一种高度可靠的电动操作装置，其能够利用具有少量部件的简单结构自动校正平衡，并且提供包括该部件的工作机器。 第一电动致动器1包括具有转子位置传感器S的第一电动机M1。第二电动致动器2包括不具有转子位置传感器的第二电动机M2。 第一电动致动器1和第二电驱动致动器2的输出由不等长的连杆3组合。第一电动机M1在其工作条件下具有转子和磁场之间的位置关系， 产生第一电动机的最大转矩的位置关系; 并且第二电动机M2被配置为通过在转子和磁场之间的位置关系之外，在其工作条件下产生从第二电动机的最大转矩减小的转矩，产生最大转矩的位置关系 第二电动机。

    LINEAR ACTUATOR
    3.
    发明申请
    LINEAR ACTUATOR 审中-公开
    线性执行器

    公开(公告)号：US20120174691A1

    公开(公告)日：2012-07-12

    申请号：US13390727

    申请日：2010-08-19

    申请人： Hiroyuki Yamada ,  Isao Hayase ,  Kenji Hiraku ,  Masami Ochiai

    发明人： Hiroyuki Yamada ,  Isao Hayase ,  Kenji Hiraku ,  Masami Ochiai

    IPC分类号： F16H25/12

    CPC分类号： B66F9/08 ,  F16H25/2261 ,  F16H25/24 ,  F16H2025/2445 ,  Y10T74/18576

    摘要： [Problem]To prevent an eccentric load from occurring in a nut member of a linear actuator and ensure a longer service life of the nut member.[Solution]The nut member is coupled to a driven member by a contact force equalizing mechanism having two rotation axes which are virtually perpendicular to each other, to absorb slight inclination between the nut member and the driven member and prevent occurrence of an edge load; also the point of intersection which is obtained when the two rotation axes are projected toward a threaded shaft is set as an optimum point of application of load for the nut member to let an external force transmitted from the driven member act on the optimum point of application of load to equalize the loads applied to the contact portions between the nut member and the threaded shaft and thereby prevent an eccentric load from occurring in the nut member.

    摘要翻译： [问题]为了防止在线性致动器的螺母构件中发生偏心负载，并确保螺母构件的使用寿命更长。 [解决方案]螺母构件通过具有两个彼此垂直的旋转轴的接触力平衡机构联接到从动构件，以吸收螺母构件和从动构件之间的轻微倾斜并防止边缘载荷的发生; 将两个旋转轴向螺纹轴突出时获得的交点也被设定为螺母构件的负载的最佳施加点，以使得从被驱动构件传递的外力作用在最佳施加点上 的负载以均衡施加到螺母构件和螺纹轴之间的接触部分的负载，从而防止在螺母构件中发生偏心负载。

    LINEAR ACTUATOR AND FORKLIFT TRUCK
    4.
    发明申请
    LINEAR ACTUATOR AND FORKLIFT TRUCK 审中-公开
    线性执行器和叉车

    公开(公告)号：US20120111669A1

    公开(公告)日：2012-05-10

    申请号：US13379689

    申请日：2010-06-21

    申请人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi

    发明人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi

    IPC分类号： B66F9/20 ,  F16H25/22

    CPC分类号： B66F9/08 ,  F16H25/2261 ,  Y10T74/18576

    摘要： This invention includes a screw shaft 1, a screw thread 30 formed spirally on an outer periphery of the screw shaft, main rollers 4 with rolling surfaces 4c each of which comes into contact with a flank surface 1a of the thread, the main rollers each rolling along the flank surface by rotating about a rotational axis D, roller support members 6 each supporting one main roller so as to enable the main roller to rotate about the rotational axis, and a roller cage 2 supporting the roller support member so as to enable the support member to oscillate with respect to a force transmitted from the flank surface via the rolling surface to the main roller, the roller cage being constructed to turn about the screw shaft in relative form with respect to the screw shaft when the main roller rolls. Thus, the roller and the screw shaft reliably come into linear contact with each other, even if a backlash due to dimensional errors between parts exists between the parts.

    摘要翻译： 本发明包括螺杆轴1，在螺杆轴的外周螺旋地形成的螺纹30，主辊4，其滚动面4c与螺纹的侧面1a接触，主辊分别滚动 通过围绕旋转轴线D旋转的侧面表面，每个支撑一个主辊的辊支撑构件6，以使得主辊能够围绕旋转轴线旋转;以及滚子保持架2，其支撑辊支撑构件， 所述支撑构件相对于从所述侧面经由所述滚动表面传递到所述主辊的力而摆动，所述滚子保持架被构造成当所述主辊滚动时相对于所述螺纹轴以相对于所述螺纹轴转动的所述螺杆轴。 因此，即使由于部件之间存在部件之间的尺寸误差而产生的间隙，滚子和螺杆轴也可以彼此线性接触。

    LINEAR ACTUATOR AND FORKLIFT TRUCK
    5.
    发明申请
    LINEAR ACTUATOR AND FORKLIFT TRUCK 审中-公开
    线性执行器和叉车

    公开(公告)号：US20120012425A1

    公开(公告)日：2012-01-19

    申请号：US13145827

    申请日：2009-12-25

    申请人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi ,  Nobuya Sekiyama

    发明人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi ,  Nobuya Sekiyama

    IPC分类号： B66F9/20 ,  F16H25/12

    CPC分类号： B66F9/08 ,  B66F9/24 ,  F16H25/2261 ,  Y10T74/18576

    摘要： This invention includes a screw shaft 1, a screw thread 10 formed spirally on an outer periphery of the screw shaft, a plurality of rollers 2 arranged along the thread so as to be spaced from one another in a circumferential direction of the screw shaft to roll along a flank surface la of the screw thread via a rolling surface 2c, and a roller cage 3 accommodating the plurality of rollers so as to rotate each of the rollers on respective axes and constructed so that when the rollers are made to roll, the cage moves about the screw shaft in relative form with respect thereto; wherein the rollers each have a central axis 26 fixedly positioned with respect to the roller cage so that the roller takes a posture making a line imaginarily extended from the central axis intersect the screw shaft, and so that the central axis is inclined towards the flank surface with which the rolling surface comes into contact. Thus, a linear actuator is provided that has high motive power transmission efficiency and excellent durability since significant slipping between the rollers and the screw shaft is suppressed.

    摘要翻译： 本发明包括螺杆轴1，在螺杆轴的外周螺旋地形成的螺纹10，多个辊2，沿着螺纹布置成沿着螺杆轴的圆周方向彼此间隔开以滚动 经由滚动表面2c沿着螺纹的侧面1a和滚子保持架3，容纳多个滚子以使各滚子在各轴线上旋转，并被构造成使得当滚筒滚动时，保持架 以相对于其的相对形式绕螺杆轴移动; 其特征在于，所述辊各自具有相对于所述滚子保持架固定地定位的中心轴线26，使得所述滚轮采取使从所述中心轴线观察地延伸的线与所述螺杆轴相交的姿态，并且使得所述中心轴线朝向所述侧面 滚动面与其接触。 因此，提供了一种线性致动器，其具有高的动力传递效率和优异的耐久性，因为抑制了辊和螺杆轴之间的显着滑动。