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公开(公告)号：JP2008116037A
公开(公告)日：2008-05-22
申请号：JP2007233563
申请日：2007-09-10
Inventor： TATEISHI YASUSHI , IKEDA YOSHINORI
Abstract: PROBLEM TO BE SOLVED: To provide an electrically-operated actuator prevented from seizing without decreasing the rigidity of a shaft and further without needing a special tool.
SOLUTION: A columnar hole 8a is provided in an inner wall of a housing 8 around a ball screw shaft 4. An annular thrust washer 20 is arranged at a position opposed to a stroke end 14 of the bottom of the hole 8a. The thrust washer 20 is fixed by a stop ring 21 with a given axial clearance held. The thrust washer 20 has a diameter slightly smaller than the inner diameter of the hole 8a and is freely rotatable inside the hole 8a. When the stroke end 14 abuts against the thrust washer 20, therefore, the thrust washer 20 turns to avoid increase in friction.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种防止在不降低轴的刚度的情况下卡住的电动致动器，并且进一步不需要特殊工具。 解决方案：圆柱形孔8a设置在围绕滚珠丝杠轴4的壳体8的内壁中。环形止推垫圈20布置在与孔8a的底部的行程端14相对的位置处。 止推垫圈20通过保持给定的轴向间隙的止动环21固定。 止推垫圈20的直径略小于孔8a的内径，并且能够在孔8a内自由旋转。 因此，当行程端14抵靠止推垫圈20时，止推垫圈20转动以避免摩擦增加。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008069793A
公开(公告)日：2008-03-27
申请号：JP2006246335
申请日：2006-09-12
Inventor： IKEDA YOSHINORI
Abstract: PROBLEM TO BE SOLVED: To provide an electric linear actuator having a small number of parts and a long lifetime. SOLUTION: A rotor shaft 4 comprises a cylindrical shaft part 4c extending in the axial direction of a motor shaft 3a, a flange part 4a extending in the radial direction of the shaft part 4c, and a gear 4b formed in the outside diameter surface of the flange part 4a. These are integrally formed by machining. A round hole 4d to fit the tip of the motor shaft 3a is bored in the left hand end in a figure of the shaft 4c. A female screw 4e is provided in the upper part of the hole 4d to be penetrated. A tip of the motor shaft 3a having an almost cross sectional D shape is inserted into the hole 4d, and the flat surface having an almost cross sectional D shape is arranged opposite to the female screw 4e, so that the motor shaft 3a is fastened to the rotor shaft 4 by screwing the screw into the female screw 4e. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供具有少量部件和长寿命的电动线性致动器。 解决方案：转子轴4包括沿电动机轴3a的轴向方向延伸的圆柱形轴部分4c，沿轴部分4c的径向延伸的凸缘部分4a和形成在外径 凸缘部分4a的表面。 这些通过机械加工一体形成。 在轴4c的图中，左端部钻有安装电动机轴3a的前端的圆孔4d。 内螺纹4e设置在孔4d的上部以被穿透。 具有大致横截面D形状的电动机轴3a的前端插入孔4d中，具有大致横截面D形状的平坦表面与阴螺纹4e相对地布置，使得电动机轴3a紧固到 转子轴4通过将螺钉拧入内螺纹4e中。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007139029A
公开(公告)日：2007-06-07
申请号：JP2005331950
申请日：2005-11-16
Inventor： IKEDA YOSHINORI
Abstract: PROBLEM TO BE SOLVED: To provide a small and compact electric actuator capable of cutting off inverse input even to inverse directional input in both left-right directions.
SOLUTION: When rotating an input shaft 3 in the right direction, and when rotating in the left direction, a coil spring 12 is diametrically contracted by pressing one of claw parts 17a and 17b by one of side surfaces 15a and 15b of a window 15, and a projection part 16 is pressed via one of the claw parts 17a and 17b, and an output shaft 6 is rotated in the same direction as the input shaft 3. When torque such as rotating its output shaft 6 is applied to the output shaft 6, the coil spring 12 is diametrically expanded by pressing one of the claw parts 17a and 17b by one of the side parts 15a and 15b of the window 15, and the output shaft 6 is locked by enhancing frictional engaging force of the coil spring to a cylindrical inner surface of a fixed ring 8, and the transmission of the inverse input to the input shaft 3 is prevented.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供即使在左右方向上的逆向输入也能够切断反向输入的小型紧凑型电致动器。 解决方案：当向右方向旋转输入轴3，并且当沿向左方向旋转时，螺旋弹簧12通过一个爪部17a和17b的一个侧面15a和15b中的一个被径向地收缩 窗口15，并且通过爪部17a和17b中的一个按压突出部16，并且输出轴6沿与输入轴3相同的方向旋转。当将其输出轴6旋转的转矩施加到 输出轴6，螺旋弹簧12通过窗口15的一个侧部15a和15b中的一个按压爪部17a和17b中的一个而径向膨胀，并且输出轴6通过增加线圈的摩擦接合力而被锁定 弹簧到固定环8的圆筒形内表面，并且防止了反相输入到输入轴3的传输。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2007016878A
公开(公告)日：2007-01-25
申请号：JP2005198234
申请日：2005-07-07
Inventor： IKEDA YOSHINORI , SATO KOJI
Abstract: PROBLEM TO BE SOLVED: To provide a reverse input cutoff clutch which can reduce noise and vibration generated from inside in either a high-temperature environment or a room-temperature environment. SOLUTION: The reverse input cutoff clutch 3 is provided with a rotatable input member 16, a rotatable output member 17, a stationary member 18 restricted in its rotation, a torque transmitting means 19 for transmitting input torque acting on the input member 16 to the output member 17, and a locking means 20 for cutting off the transmission of reverse input torque acting on the output member 17 to the input member 16. The locking means 20 locks the output member 17 and the stationary member 18 by an engaging element 15 arranged therebetween so as to cut off the transmission of the reverse input torque acting on the output member 17 to the input member 16. Grease having the penetration of 265 to 295 and mixed with organic molybdenum as an extreme-pressure additive, is interposed between the stationary member 18 and the output member 17 which are engaged or released by the engaging element 15. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够降低在高温环境或室温环境中从内部产生的噪声和振动的反向输入切断离合器。 解决方案：反向输入切断离合器3设置有可旋转的输入部件16，可旋转的输出部件17，限制其旋转的固定部件18，用于传递作用在输入部件16上的输入转矩的扭矩传递部件19 到输出构件17，以及锁定装置20，用于将作用在输出构件17上的反向输入扭矩的变速器切断到输入构件16.锁定装置20通过接合元件将输出构件17和固定构件18锁定 15，以便将作用在输出构件17上的反向输入扭矩的传递切断到输入构件16.具有265-295的穿透性和与作为极压添加剂的有机钼混合的润滑脂介于 固定构件18和输出构件17，其由接合元件15接合或释放。版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2006029528A
公开(公告)日：2006-02-02
申请号：JP2004212411
申请日：2004-07-21
Inventor： TATEISHI YASUSHI , IKEDA YOSHINORI , KAZUNO KEISUKE
Abstract: PROBLEM TO BE SOLVED: To provide an electric linear actuator having improved product quality by suppressing vibration and noises even when vibration load or alternating load is applied to a ball screw.
SOLUTION: The electric linear actuator 1 comprises the ball screw 3 consisting of a screw shaft 7 coaxially connected to an electric motor 5 and having a screw groove 7a formed in the outer periphery, a nut 8 having a supporting shaft 12 on the outer periphery for supporting a link 2 at one end and having a screw groove 8a formed in the inner periphery, and a ball 9 stored between both screw grooves, for converting the rotating motion of the electric motor 5 into the axial motion to give rocking motion to the link 2 via the supporting shaft 12, and a pair of supporting bearings 10, 11 for rotatably bearing the screw shaft 7 in an axially non-movable manner. The supporting bearing 10 on the side of the electric motor 5 is formed as a double row angular contact ball bearing. Light preload is imparted to the ball screw 3 to suppress vibration and noises even when vibration load or alternating load is applied to the ball screw 3.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：即使当对滚珠丝杠施加振动载荷或交替载荷时，通过抑制振动和噪声来提供具有改进的产品质量的电动线性致动器。 解决方案：电动线性致动器1包括由同轴连接到电动机5并且具有形成在外周上的螺纹槽7a的螺纹轴7组成的滚珠丝杠3，螺母8在其上具有支撑轴12 用于在一端支撑连杆2并且具有形成在内周中的螺纹槽8a的外周边，以及存储在两个螺旋槽之间的用于将电动机5的旋转运动转换成轴向运动以产生摇摆运动的球9 经由支撑轴12到连杆2，以及一对支承轴承10,11，用于以轴向不可移动的方式旋转地支承螺杆轴7。 电动马达5一侧的支承轴承10形成为双列角接触球轴承。 即使在滚珠丝杠3上施加振动负荷或交替载荷时，也可以向滚珠丝杠3施加轻负载，以抑制振动和噪音。（C）2006，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2005325956A
公开(公告)日：2005-11-24
申请号：JP2004145842
申请日：2004-05-17
Inventor： YOSHIOKA MORIHISA , IKEDA YOSHINORI
IPC: F16H25/20
Abstract: PROBLEM TO BE SOLVED: To provide a ball screw for motor-driven actuator, absorbing bending force due to external force, reducing sliding resistance, improving wear resistance and facilitating manufacture.
SOLUTION: This ball screw for the motor-driven actuator is a ball screw 2 used in the form of rotating a nut 4 and sliding a screw shaft 3. The ball screw 2 is constructed by fitting an annular part 18, the surface of which is quenched and which is brought into sliding contact with a ball screw using device to the outer periphery of the screw shaft 3 in the press-fit state.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种用于马达驱动致动器的滚珠丝杠，由于外力而吸收弯曲力，降低滑动阻力，提高耐磨性和便于制造。 解决方案：用于电动致动器的该滚珠丝杠是以旋转螺母4并滑动螺杆轴3的形式使用的滚珠丝杠2。滚珠丝杠2通过安装环形部分18，表面 其被淬火，并且在压配合状态下与滚珠丝杠使用装置滑动接触到螺杆轴3的外周。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005299719A
公开(公告)日：2005-10-27
申请号：JP2004112892
申请日：2004-04-07
Inventor： TATEISHI YASUSHI , YOSHIOKA MORIHISA , IKEDA YOSHINORI
CPC classification number: F16H25/2223 , F16H61/32 , F16H2025/2481 , F16H2063/3063
Abstract: PROBLEM TO BE SOLVED: To provide an automobile ball screw with a compact circulation part and a piece member reliable on fixation to achieve lower cost and superior mass-productivity, wherein the circulation part is arranged in an improved isostatic and free fashion.
SOLUTION: The ball screw 1 to be used for an automobile actuator comprises a screw stem 2, a nut 3, and a ball 6 laid between screw grooves 4, 5. The nut 3 has the piece member 7 as a component for circulating the ball 6. The piece member 7 is fitted to a fitting opening 8 formed in the nut 3 through its inside and outside faces. The piece member 7 has a pair of wing portions 10 for engaging with the screw groove 5 of the nut 3 and a pair of caulked portions 11 to be fixed to an outer diameter portion of the nut 3. The piece member 7 is formed of a sintered alloy manufactured in a metal injection molding method.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：为了提供一种汽车滚珠丝杠，其具有紧凑的循环部件和可固定的可靠的零件，以实现更低的成本和优异的批量生产率，其中循环部件以改进的等静压和自由方式布置。 ＆lt; P＆gt;解决方案：用于汽车致动器的滚珠丝杠1包括螺杆2，螺母3和布置在螺纹槽4,5之间的滚珠6.螺母3具有作为部件7的部件 循环球6.零件7通过其内表面和外表面装配到形成在螺母3中的装配开口8上。 片件7具有一对与螺母3的螺纹槽5相接合的翼部10和一对固定在螺母3的外径部上的铆接部11。 以金属注射成型法制造的烧结合金。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2015006129A
公开(公告)日：2015-01-08
申请号：JP2014182948
申请日：2014-09-09
Inventor： IKEDA YOSHINORI , SHIMIZU TATSUNORI
Abstract: 【課題】直接的な位置検出が可能で、ポテンショメータを用いた場合でも、多段のギヤを使用することなく、位置検出精度を高め、信頼性を向上させた電動アクチュエータを提供する。【解決手段】ボールねじ機構8が、電動モータ3に連結され、駆動軸7と一体に、ハウジング2に対して回転不可に、かつ軸方向移動可能に支持されたねじ軸15と、このねじ軸15に多数のボール17を介して外挿され、転がり軸受18を介して回転可能に、かつ軸方向移動不可に支持されたナット16で構成され、ポテンショメータ9が、駆動軸7の上部でハウジング2の裏面に位置決め固定され、ジョイント部11の先端部がハウジング2の内部に突出するように配設されると共に、この先端部に揺動リンク12の一端部が連結され、他端部が駆動軸7に突設されたピン13に係合し、駆動軸7の直線運動に連動して振り子運動可能に配設されている。【選択図】図1
Abstract translation: 要解决的问题：提供一种能够直接检测位置并通过提高位置检测精度而不使用多级齿轮的电动执行器，即使使用电位计也是可以的。解决方案：滚珠丝杠机构8由以下部件构成：螺杆轴 15连接到电动机3，一体地支撑在驱动轴7上，以便相对于壳体2不能旋转并可沿轴向移动; 螺母16经由大量的滚珠17被装配到螺杆轴15上，并通过滚动轴承18在轴向方向上可转动地固定。电位计9位于并固定在反面上 壳体2位于驱动轴7的上部。接合部11的前端被布置成突出到壳体2的内部，摇摆连杆12的一端连接到尖端。 摆动连杆的另一端与突出在驱动轴7上的销13接合，并且布置成使得可以通过与驱动轴7的直线运动互锁来执行摆动。
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公开(公告)号：JP2014080995A
公开(公告)日：2014-05-08
申请号：JP2012227499
申请日：2012-10-12
Inventor： IKEDA YOSHINORI , KAZUNO KEISUKE , FUNADA KENSUKE , TATEISHI YASUSHI
CPC classification number: F16H25/2204 , F16H25/24 , F16H2025/2031 , F16H2025/204 , F16H2025/2081 , F16H2025/2445 , H02K7/06 , Y10T74/1868
Abstract: PROBLEM TO BE SOLVED: To provide an electric linear actuator capable of reducing abrasion of a housing and including a rotation prevention mechanism of a screw shaft, of a simple structure and low costs.SOLUTION: In an electric linear actuator 1 composed of a screw shaft 10 supported in a state that it cannot be rotated to a housing 2 and is movable in the axial direction, a sleeve 17 provided with an axially-extending recessed groove 17a on its inner periphery, is fitted to a bottomed hole 12 of the housing 2b, a locking pin 15 is buried in an end portion of the screw shaft 10 and engaged with the recessed groove 17a, a flat portion 31a is formed on an outer periphery of the sleeve 17, and a flat face 34 corresponding to the flat portion 31a of the sleeve 17, is formed on an inner periphery of the bottomed hole 12.
Abstract translation: 要解决的问题：提供一种能够减少壳体的磨损并且包括螺杆轴的防旋转机构的电动线性致动器，其结构简单且成本低。解决方案：在由螺杆轴构成的电动线性致动器1中 10在不能旋转到壳体2并且可沿轴向移动的状态下被支撑，在其内周上设置有轴向延伸的凹槽17a的套筒17装配到壳体2b的有底孔12中 锁定销15埋在螺杆轴10的端部并与凹槽17a接合，平坦部分31a形成在套筒17的外周上，平面部分34对应于平坦部分31a 套筒17的内周面形成有底孔12的内周。
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公开(公告)号：JP2011033080A
公开(公告)日：2011-02-17
申请号：JP2009177900
申请日：2009-07-30
Inventor： IKEDA YOSHINORI , SATO KOJI , TATEISHI YASUSHI , SAITO TAKAHIDE
CPC classification number: F16H25/2204 , F16D65/18 , F16D2121/24 , F16D2125/40 , F16D2125/50 , F16D2127/06 , F16D2129/08 , F16H1/32 , F16H2025/2087
Abstract: PROBLEM TO BE SOLVED: To provide an electric actuator which can obtain a large speed reduction ratio and realize compactization with a simple structure. SOLUTION: In the electric actuator, a disk-like motor bracket 10 is mounted in an opening of a housing 2, and an electric motor 3 is fixed thereto. A ball screw mechanism 7 comprises a hollow ball screw shaft 14 supported by an input shaft 4 via rolling bearings 11, 12 so as to be rotatable and not to be axially movable, and a ball screw nut 15 coaxially connected to and supported by a drive shaft 6 so as to be axially movable and not to be rotatable. A speed reduction mechanism 5 comprises a ball screw shaft 14 having a plurality of internal teeth 22 which are arranged at an equal distance in a circumferential direction on an inner periphery, engagement elements 23 coming into contact with an outer periphery of an outer ring 11a of the rolling bearing 11 and the internal teeth 22, and a retainer 24 for retaining the engagement elements 23 arranged at an equal distance in the circumferential direction. The number of internal teeth 22 is set larger than that of the engagement elements 23. The ball screw shaft 14 is slightly eccentric with respect to a motor shaft 3a. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够获得大的减速比并且以简单结构实现压实的电动致动器。 解决方案：在电动执行器中，盘状电动机托架10安装在壳体2的开口中，电动机3固定在其上。 滚珠丝杠机构7包括：中空滚珠丝杠轴14，其通过滚动轴承11,12由输入轴4支撑以便可旋转并且不能够轴向移动;以及滚珠丝杠螺母15，其同轴地连接并由驱动器支撑 轴6能够轴向移动并且不能旋转。 减速机构5具有滚珠丝杠轴14，该滚珠丝杠轴14具有多个内周齿轮22，该多个内齿轮22在内周沿圆周方向相等距离设置，接合元件23与外圈11a的外周面 滚动轴承11和内齿22，以及用于保持沿圆周方向等距设置的接合元件23的保持器24。 内齿22的数量大于接合元件23的数量。滚珠丝杠轴14相对于马达轴3a略微偏心。 版权所有（C）2011，JPO＆INPIT
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