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公开(公告)号：US09941767B2
公开(公告)日：2018-04-10
申请号：US14904481
申请日：2014-07-11
发明人： Masafumi Tamai , Osamu Goto
CPC分类号： H02K7/00 , B61F5/245 , G01D5/2046 , H02K5/10 , H02K5/12 , H02K5/16 , H02K5/1732 , H02K7/06 , H02K11/225 , H02K2205/09
摘要： To provide a compact linear actuator having small back drive force. The linear actuator includes: a hollow rotor that has a magnet fixed to a part of the outer peripheral surface thereof and having an open end and a closed end; a main body that has a hollow structure having an open end and a closed end and rotatably accommodates the rotor in the hollow structure, and is fixed with a stator winding facing the magnet; a linear motion converting section that is arranged in the hollow section of the rotor and is linearly moved in the axial direction by the rotation of the rotor; a linear motion rod that has one end fixed to the linear motion converting section, and the other end extended from the open end of the main body, and has, on the outer periphery thereof, a slide section made to slide in the axial direction with respect to a linear motion seal of the opening of the main body; and a resolver that is configured by a rotator fixed at the radial outer side of the outer peripheral surface of the rotor and on the open end side of the closed end section of the rotor, and a stator fixed to the main body at a part of the angular range on the radial outer side of the rotator, the linear actuator being configured such that the rotor is supported by the main body at the open side and the closed end of the magnet and the stator winding so as to be rotatable about the axis of the rotor, and such that the whole of the hollow rotor is accommodated in the sealed space.
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公开(公告)号：US20160252152A1
公开(公告)日：2016-09-01
申请号：US15030793
申请日：2014-10-20
发明人： Katsumi Sasaki , Osamu Goto , Toshiaki Matsui
CPC分类号： F16F9/0218 , B61F5/10 , F16F9/0227 , F16F9/0236 , F16F9/46
摘要： The damper device is equipped with: a cylinder unit having a sliding inner wall surface; a piston unit, having a piston head, which has an outer diameter part that slides on the sliding inner wall surface of the cylinder unit, and divides the interior space of the cylinder unit into a first gas chamber and a second gas chamber, a rod extending from the second gas chamber side of the piston head, and a closed-end hole which opens toward the first air chamber side of the piston head and extends through the interior of the rod in the direction of the second air chamber; and a guide shaft affixed to the first gas chamber side of the cylinder unit and equipped with a tip part having an outer circumferential surface that slides on the inner wall surface of the closed-end hole of the piston unit.
摘要翻译： 阻尼器装置具有：具有滑动内壁表面的气缸单元; 具有活塞头的活塞单元，其具有在所述气缸单元的滑动内壁面上滑动的外径部，并且将所述气缸单元的内部空间分割为第一气室和第二气室，杆 从活塞头的第二气室侧延伸出的封闭端孔，朝向活塞头的第一空气室侧开口并沿着第二空气室的方向延伸穿过杆的内部的封闭端孔; 以及安装在气缸单元的第一气室侧的引导轴，其具有在活塞单元的封闭端孔的内壁面上滑动的外周面的前端部。
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