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1. 发明申请

US20120012425A1 LINEAR ACTUATOR AND FORKLIFT TRUCK 审中-公开
标题翻译：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。

2. 发明申请

US20120111669A1 LINEAR ACTUATOR AND FORKLIFT TRUCK 审中-公开
标题翻译：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。

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