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。

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。

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。

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。

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。

公开(公告)号：US20110179896A1

公开(公告)日：2011-07-28

申请号：US13014308

申请日：2011-01-26

申请人： Kenji HIRAKU ,  Isao Hayase

发明人： Kenji HIRAKU ,  Isao Hayase

IPC分类号： F16H25/22

CPC分类号： F16H25/2247 ,  E02F3/425 ,  E02F3/427 ,  Y10T74/19786

摘要： A lead screw apparatus includes a screw shaft having a spiral channel on an outer circumferential surface thereof, a plurality of rollers rotatable with contact with the spiral channel, and a cage rotatably supporting the rollers for conversion between relative rotation and linear motions between the screw shaft and the cage bi-directionally. The lead screw apparatus further includes a bearing and a holder 6 supported by the case for supporting the bearing. An inner ring of the bearing and the roller are integrally formed. An outer ring of the bearing has a protrusion on an outer circumferential surface thereof on a side closer to the screw shaft. Rollers of the bearing having a circular truncated cone shape are disposed in the bearing in a circumferential direction with substantially no gap. The outer ring has a thread part to shift the bearing and the roller.

摘要翻译： 螺杆装置包括在其外周面上具有螺旋形通道的螺杆轴，可与螺旋通道接触的多个滚子，以及可旋转地支撑滚子的保持架，用于在螺杆轴之间的相对旋转和线性运动之间转换 和笼子双向。 导螺杆装置还包括轴承和由用于支撑轴承的壳体支撑的保持器6。 轴承的内圈和辊一体形成。 轴承的外圈在靠近螺杆轴的一侧的外周面上具有突起。 具有圆形截锥形的轴承的滚子在圆周方向上基本上没有间隙地设置在轴承中。 外圈具有用于移动轴承和滚子的螺纹部分。

公开(公告)号：US07588423B2

公开(公告)日：2009-09-15

申请号：US10695992

申请日：2003-10-30

申请人： Kunihiko Takao ,  Kenji Hiraku ,  Isao Hayase ,  Hironori Kaji ,  Masahito Ito

发明人： Kunihiko Takao ,  Kenji Hiraku ,  Isao Hayase ,  Hironori Kaji ,  Masahito Ito

IPC分类号： F04B3/00 ,  F04B5/00 ,  F04B25/00

CPC分类号： G01N30/32 ,  B01D15/14 ,  F04B11/0075 ,  G01N2030/326

摘要： Provided is a liquid chromatograph pump system which sucks eluent from an eluent reserving container, and which feeds pressurized high pressure eluent into a column, wherein a plunger reciprocating in a cylinder is formed on its outer peripheral surface with a stepped part along the sliding direction of the plunger in the cylinder so as to define a working chamber between the stepper part and the inner wall surface of the cylinder, the flow rate of the liquid chromatograph pump being determined by the volume of the working chamber and the traveling speed of the plunger, thereby it is possible to stably feed a liquid at an extremely low flow rate, and to satisfactorily expel air bubbles upon a start of the liquid chromatograph pump system.

摘要翻译： 提供了一种液体色谱泵系统，其从洗脱液储存容器中吸收洗脱液，并将加压的高压洗脱液进料到柱中，其中在圆筒中往复运动的柱塞沿着滑动方向的一个台阶部分形成在其外周表面上 柱塞在气缸中以便在步进部分和气缸的内壁表面之间限定工作室，液相色谱泵的流量由工作室的体积和柱塞的行进速度决定， 从而可以以极低的流量稳定地供给液体，并且在启动液相色谱泵系统时令人满意地排出气泡。

公开(公告)号：US20140338487A1

公开(公告)日：2014-11-20

申请号：US14364490

申请日：2011-12-14

申请人： Hiroyuki Yamada ,  Isao Hayase

发明人： Hiroyuki Yamada ,  Isao Hayase

IPC分类号： F16H25/22

CPC分类号： F16H25/2247 ,  F16H25/2261 ,  Y10T74/19791

摘要： In a roller screw (1) having a screw shaft (2), a plurality of rollers (4) that roll on a flank face (21a) of the screw shaft; and a cage (3) that rotatably houses the plurality of rollers, a plurality of roller groups (40) each having a plurality of rollers arranged at equal intervals while contacting with the same flank face along a spiral groove of the screw shaft for one lead are provided, and the plurality of roller groups are arranged at intervals in the axial direction of the screw shaft. With this configuration, the size of the nut portion in the axial direction of the screw shaft can be prevented from being bloated, and the load distribution in a circumferential direction of the screw shaft can be uniformized.

摘要翻译： 在具有螺杆轴（2）的滚柱螺杆（1）中，在螺杆轴的侧面（21a）上滚动的多个滚子（4） 以及可旋转地容纳多个辊的保持架（3），多个辊组（40），每个辊组具有以等间隔布置的多个辊，同时沿着螺杆轴的螺旋槽与同一侧面接触，用于一个引线 并且多个辊组在螺杆轴的轴向方向上间隔设置。 通过这种构造，可以防止螺母轴在轴向上的尺寸膨胀，并且可以使螺杆轴的圆周方向上的负荷分布均匀化。

公开(公告)号：US09188211B2

公开(公告)日：2015-11-17

申请号：US14364490

申请日：2011-12-14

申请人： Hiroyuki Yamada ,  Isao Hayase

发明人： Hiroyuki Yamada ,  Isao Hayase

IPC分类号： F16H25/24 ,  F16H25/22

CPC分类号： F16H25/2247 ,  F16H25/2261 ,  Y10T74/19791

摘要： In a roller screw (1) having a screw shaft (2), a plurality of rollers (4) that roll on a flank face (21a) of the screw shaft; and a cage (3) that rotatably houses the plurality of rollers, a plurality of roller groups (40) each having a plurality of rollers arranged at equal intervals while contacting with the same flank face along a spiral groove of the screw shaft for one lead are provided, and the plurality of roller groups are arranged at intervals in the axial direction of the screw shaft. With this configuration, the size of the nut portion in the axial direction of the screw shaft can be prevented from being bloated, and the load distribution in a circumferential direction of the screw shaft can be uniformized.

摘要翻译： 在具有螺杆轴（2）的滚柱螺杆（1）中，在螺杆轴的侧面（21a）上滚动的多个辊（4） 以及可旋转地容纳多个辊的保持架（3），多个辊组（40），每个辊组具有以等间隔布置的多个辊，同时沿着螺杆轴的螺旋槽与同一侧面接触，用于一个引线 并且多个辊组在螺杆轴的轴向方向上间隔设置。 通过这种构造，可以防止螺母轴在轴向上的尺寸膨胀，并且可以使螺杆轴的圆周方向上的负荷分布均匀化。

公开(公告)号：US20130319147A1

公开(公告)日：2013-12-05

申请号：US14000623

申请日：2011-03-09

申请人： Hiroyuki Yamada ,  Isao Hayase

发明人： Hiroyuki Yamada ,  Isao Hayase

IPC分类号： F16H25/12

CPC分类号： F16H25/12 ,  F16H25/2006 ,  F16H2025/2075 ,  Y10T74/18576

摘要： A linear actuator (1) including a threaded shaft (51) and plural nuts (52) threaded onto the threaded shaft (51) to drive a drive target (55) with axial displacement of the threaded shaft caused by relatively rotating the threaded shaft (51) and the plural nuts (52) about an axis, includes: a link member (62) to connect two nuts of the plural nuts (52) and support the two nuts rotatably circumferentially of the threaded shaft (51); and a load transfer member (63) connected to the drive target to swingably support the link member (62). Thus, it is possible to easily reduce the difference between the loads applied to the nuts while reducing stiffness reduction of the load equalizing mechanism.

摘要翻译： 一种线性致动器（1），包括螺纹轴（51）和多个螺母（52），所述多个螺母（52）螺纹连接到所述螺纹轴（51）上以通过相对旋转所述螺纹轴来驱动所述螺纹轴的轴向位移的驱动目标（55） 51）和多个螺母（52）围绕轴线包括：连接构件（62），其连接多个螺母（52）的两个螺母，并且支撑沿螺纹轴（51）周向旋转的两个螺母; 以及连接到所述驱动目标件以可摆动地支撑所述连杆构件（62）的载荷传递构件（63）。 因此，可以容易地减小施加到螺母的负载之间的差异，同时降低负载均衡机构的刚度降低。