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公开(公告)号：US07240762B2
公开(公告)日：2007-07-10
申请号：US10721751
申请日：2003-11-26
申请人： Akihiko Shiina , Noritake Okawa , Masayoshi Sakuda
发明人： Akihiko Shiina , Noritake Okawa , Masayoshi Sakuda
CPC分类号： F16H25/24 , B62D5/0409 , F16H57/12 , Y10T74/19623 , Y10T74/19828 , Y10T74/19898 , Y10T74/19953
摘要： A gearing radius of a worm wheel is set corresponding to a neighborhood region of a steering neutral position, in such a way as to be relatively large. Thus, backlash is made to be relatively small. This prevents noises from being produced when an automobile travels straight on a bad road. Conversely, the backlash is set corresponding to most of regions of steering angles, which are within the remaining region thereof, in such a manner as to be relatively large. Thus, increase in resistance torque is suppressed. This is realized by a simple configuration in which a bias portion is provided in a part of the profile of teeth. In a case where power is transmitted from an electric motor by a worm shaft and a worm wheel during a steering operation, noises are hard to be produced even when the automobile travels on a bad road.
摘要翻译： 蜗轮的齿轮半径被设定为对应于转向中立位置的邻域，以相对较大的方式。 因此，齿隙相对较小。 这样可以防止汽车在恶劣的道路上直线行驶时产生噪音。 相反，对应于处于其剩余区域内的转向角的大部分区域，以相对较大的方式设定齿隙。 因此，抑制了电阻转矩的增加。 这通过简单的构造来实现，其中在牙齿轮廓的一部分中设置偏置部分。 在转向操作期间通过蜗杆轴和蜗轮从电动机传递动力的情况下，即使在汽车在恶劣的道路上行驶时也难以产生噪声。
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公开(公告)号：US20070102228A1
公开(公告)日：2007-05-10
申请号：US10553815
申请日：2004-04-16
IPC分类号： B62D5/04
CPC分类号： F16H1/16 , B62D5/0409 , F16C25/08 , F16C2361/61 , F16C2380/27 , F16H55/24 , F16H2057/0213 , H02K7/081
摘要： An electric power steering device provided with two belleville springs for suppressing the axial movement of a worm rotated by a steering-assisting electric motor and having shaft portions at its both end portions, and limiting members for limiting the deflection amounts of the two belleville springs. The limiting members are respectively disposed at portions along the outer circumferences of the shaft portions at both end portions of the worm, the respective inner circumferential portions of the two belleville springs are formed into flat portions, the outer circumferential portions thereof are respectively formed into tapered portions having a taper shape, and the limiting members are made contact with the flat portions, thereby limiting the deflection amounts of the tapered portions. Hence, the limiting members can be provided without increasing the size of the worm serving as a small gear.
摘要翻译： 一种电动助力转向装置，其具有两个用于抑制由转向辅助电动机旋转的蜗杆的轴向运动并在其两个端部具有轴部的椭圆形弹簧，以及用于限制两个贝氏弹簧的挠曲量的限制构件。 限位构件分别设置在蜗杆的两端部处的轴部的外周的部分，两个扁平弹簧的内周部形成为平坦部，其外周部分别形成为锥形 具有锥形的部分，并且限制构件与平坦部分接触，从而限制锥形部分的偏转量。 因此，可以提供限制构件而不增加用作小齿轮的蜗杆的尺寸。
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公开(公告)号：US20060135312A1
公开(公告)日：2006-06-22
申请号：US11311163
申请日：2005-12-20
申请人： Akihiko Shiina , Hiroaki Sougumo , Shiro Nakano , Kosuke Yamanaka
发明人： Akihiko Shiina , Hiroaki Sougumo , Shiro Nakano , Kosuke Yamanaka
IPC分类号： F16H57/08
CPC分类号： B62D5/008 , F16H1/2863 , F16H35/008 , F16H2057/128
摘要： A planetary gear apparatus whose gears are all constituted by continuous shifted gears. A backlash between the input sun gear and each of the input side planetary gears is adjusted by pressing a second carrier plate supporting each integrated pair of the input side planetary gears and the output side planetary gears and moving it in the axial length direction by a ball bearing by a screwing operation of an adjusting nut. A backlash between the output sun gear and each of the output side planetary gears is also adjusted by pressing the output sun gear and moving it in the axial length direction by the ball bearing by the screwing operation of the adjusting nut. Accordingly, the backlash of all meshing portions can be adjusted during or after completion of the assemblage.
摘要翻译： 一种行星齿轮装置，其齿轮均由连续移动的齿轮构成。 输入太阳齿轮与每个输入侧行星齿轮之间的间隙通过按压支撑各一对输入侧行星齿轮和输出侧行星齿轮的第二承载板并通过球的轴向长度方向移动来调节 通过调节螺母的拧紧操作来支承。 输出太阳齿轮与输出侧行星齿轮之间的间隙也通过按压输出太阳齿轮并通过调节螺母的螺旋操作由球轴承在轴向长度方向上移动来调节。 因此，可以在组装完成期间或之后调整所有啮合部分的间隙。
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公开(公告)号：US09038763B2
公开(公告)日：2015-05-26
申请号：US13273866
申请日：2011-10-14
CPC分类号： B62D5/065 , B62D5/064 , B62D5/09 , B62D15/027
摘要： A hydraulic power steering system includes: a hydraulic cylinder in which an interior is partitioned into first and second hydraulic chambers by a piston on a steered shaft; a variable displacement electric pump that supplies hydraulic fluid to the hydraulic cylinder; a selector valve selectively set in a mode in which the hydraulic fluid is supplied to the first hydraulic chamber and drained from the second hydraulic chamber or in a mode in which the hydraulic fluid is supplied to the second hydraulic chamber and drained from the first hydraulic chamber; a detector that detects torque, steering angle, and/or vehicle speed; and a controller.
摘要翻译： 液压动力转向系统包括：液压缸，其中内部通过转向轴上的活塞分隔成第一和第二液压室; 液压缸供给液压油的可变排量电动泵; 选择阀，其选择性地设定为将液压流体供给到第一液压室并从第二液压室排出的模式，或者将液压流体供给到第二液压室的模式，并从第一液压室 ; 检测扭矩，转向角和/或车速的检测器; 和控制器。
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公开(公告)号：US20120097472A1
公开(公告)日：2012-04-26
申请号：US13273866
申请日：2011-10-14
IPC分类号： B62D5/09
CPC分类号： B62D5/065 , B62D5/064 , B62D5/09 , B62D15/027
摘要： A hydraulic power steering system includes: a hydraulic cylinder in which an interior is partitioned into first and second hydraulic chambers by a piston on a steered shaft; a variable displacement electric pump that supplies hydraulic fluid to the hydraulic cylinder; a selector valve selectively set in a mode in which the hydraulic fluid is supplied to the first hydraulic chamber and drained from the second hydraulic chamber or in a mode in which the hydraulic fluid is supplied to the second hydraulic chamber and drained from the first hydraulic chamber; a detector that detects torque, steering angle, and/or vehicle speed; and a controller.
摘要翻译： 液压动力转向系统包括：液压缸，其中内部通过转向轴上的活塞分隔成第一和第二液压室; 液压缸供给液压油的可变排量电动泵; 选择阀，其选择性地设定为将液压流体供给到第一液压室并从第二液压室排出的模式，或者将液压流体供给到第二液压室的模式，并从第一液压室 ; 检测扭矩，转向角和/或车速的检测器; 和控制器。
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公开(公告)号：US07575090B2
公开(公告)日：2009-08-18
申请号：US10553815
申请日：2004-04-16
IPC分类号： B62D5/04
CPC分类号： F16H1/16 , B62D5/0409 , F16C25/08 , F16C2361/61 , F16C2380/27 , F16H55/24 , F16H2057/0213 , H02K7/081
摘要： An electric power steering device provided with two belleville springs for suppressing the axial movement of a worm rotated by a steering-assisting electric motor and having shaft portions at its both end portions, and limiting members for limiting the deflection amounts of the two belleville springs. The limiting members are respectively disposed at portions along the outer circumferences of the shaft portions at both end portions of the worm, the respective inner circumferential portions of the two belleville springs are formed into flat portions, the outer circumferential portions thereof are respectively formed into tapered portions having a taper shape, and the limiting members are made contact with the flat portions, thereby limiting the deflection amounts of the tapered portions. Hence, the limiting members can be provided without increasing the size of the worm serving as a small gear.
摘要翻译： 一种电动助力转向装置，其具有两个用于抑制由转向辅助电动机旋转的蜗杆的轴向运动并在其两个端部具有轴部的椭圆形弹簧，以及用于限制两个贝氏弹簧的挠曲量的限制构件。 限位构件分别设置在蜗杆的两端部处的轴部的外周的部分，两个扁平弹簧的内周部形成为平坦部，其外周部分别形成为锥形 具有锥形的部分，并且限制构件与平坦部分接触，从而限制锥形部分的偏转量。 因此，可以提供限制构件而不增加用作小齿轮的蜗杆的尺寸。
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7.发明授权Electric power steering apparatus and method of manufacturing gear used therefor 失效电动助力转向装置及其制造用齿轮的方法公开(公告)号：US06868607B2
公开(公告)日：2005-03-22
申请号：US10625601
申请日：2003-07-24
CPC分类号： B62D5/0409 , F16H55/06 , F16H55/22 , F16H2055/065 , Y10T29/49472 , Y10T29/49474 , Y10T29/49986 , Y10T74/19828
摘要： The support body engaged with the interior side of the tooth body provided at the worm wheel of the electric power steering apparatus comprises: a corrugated cylinder part press-formed to have a plurality of concavities on the exterior side thereof and convexities to the interior formed by the concavities which are arranged in a peripheral direction; and a plate part an exterior edge of which is united with an end of the corrugated cylinder part, wherein the tooth body is engaged with the exterior side of the corrugated cylinder part. With the method of manufacturing the gear, synthetic resin of the tooth body can be deposited uniformly on the support body made of metal engaged with the interior of the tooth body, costs can be reduced, and the support body can be engaged with the tooth body without generating voids and weld marks.
摘要翻译： 与设置在电动助力转向装置的蜗轮处的齿体的内侧接合的支撑体包括：波纹筒部，其压入成形为具有在其外侧上的多个凹部和由内部形成的凸部 沿圆周方向布置的凹部; 以及其外缘与波纹筒部的端部结合的板部，其中，所述齿体与所述波纹筒部的外侧接合。 通过齿轮的制造方法，可以将齿体的合成树脂均匀地沉积在与齿体内部配合的金属制的支撑体上，可以降低成本，并且支撑体能够与齿体接合 而不产生空隙和焊缝。
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8.发明申请公开(公告)号：US20110108355A1
公开(公告)日：2011-05-12
申请号：US13001716
申请日：2009-07-06
申请人： Akihiko Shiina , Motoyasu Yamamori
发明人： Akihiko Shiina , Motoyasu Yamamori
CPC分类号： B62D5/008 , F16H1/321 , F16H35/008 , Y10T74/1966
摘要： A transmission ratio variable mechanism includes an input member and an output member arranged to rotate around a first axis, an intermediate member arranged to connect the input member and the output member so as to be differentially rotatable, and a motor arranged to drive the intermediate member. The motor includes a cylindrical rotor arranged to rotate around the first axis. An inner periphery of the rotor is arranged to support the intermediate member and arranged to rotatably support the input member and the output member via bearings, respectively.
摘要翻译： 传动比可变机构包括输入构件和布置成围绕第一轴线旋转的输出构件，布置成将输入构件和输出构件连接成可差动转动的中间构件，以及驱动中间构件的马达 。 电动机包括一个圆柱形转子，其布置成围绕第一轴线旋转。 所述转子的内周面被布置成支撑所述中间构件并且被布置成分别通过轴承可旋转地支撑所述输入构件和所述输出构件。
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9.发明授权Planetary gear apparatus and steering apparatus with planetary gear apparatus 失效行星齿轮装置和带行星齿轮装置的转向装置公开(公告)号：US07377875B2
公开(公告)日：2008-05-27
申请号：US11311163
申请日：2005-12-20
申请人： Akihiko Shiina , Hiroaki Sougumo , Shiro Nakano , Kosuke Yamanaka
发明人： Akihiko Shiina , Hiroaki Sougumo , Shiro Nakano , Kosuke Yamanaka
IPC分类号： F16H57/08
CPC分类号： B62D5/008 , F16H1/2863 , F16H35/008 , F16H2057/128
摘要： A planetary gear apparatus whose gears are all constituted by continuous shifted gears. A backlash between the input sun gear and each of the input side planetary gears is adjusted by pressing a second carrier plate supporting each integrated pair of the input side planetary gears and the output side planetary gears and moving it in the axial length direction by a ball bearing by a screwing operation of an adjusting nut. A backlash between the output sun gear and each of the output side planetary gears is also adjusted by pressing the output sun gear and moving it in the axial length direction by the ball bearing by the screwing operation of the adjusting nut. Accordingly, the backlash of all meshing portions can be adjusted during or after completion of the assemblage.
摘要翻译： 一种行星齿轮装置，其齿轮均由连续移动的齿轮构成。 输入太阳齿轮与每个输入侧行星齿轮之间的间隙通过按压支撑各一对输入侧行星齿轮和输出侧行星齿轮的第二承载板并通过球体沿轴向长度方向移动来调节 通过调节螺母的拧紧操作来支承。 输出太阳齿轮与输出侧行星齿轮之间的间隙也通过按压输出太阳齿轮并通过调节螺母的螺旋操作由球轴承在轴向长度方向上移动来调节。 因此，可以在组装完成期间或之后调整所有啮合部分的间隙。
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公开(公告)号：US07174825B2
公开(公告)日：2007-02-13
申请号：US11248463
申请日：2005-10-12
申请人： Akihiko Shiina , Yasuhiro Kamatani , Toshiaki Oya , Ryouichi Tokioka , Kazuhiro Watanabe , Yoshimi Kotake , Hiroji Ueda , Katsuyuki Oguchi , Takashi Ohata , Osamu Sano , Masayoshi Ashitaka
发明人： Akihiko Shiina , Yasuhiro Kamatani , Toshiaki Oya , Ryouichi Tokioka , Kazuhiro Watanabe , Yoshimi Kotake , Hiroji Ueda , Katsuyuki Oguchi , Takashi Ohata , Osamu Sano , Masayoshi Ashitaka
摘要： In a hydraulic power steering apparatus, when the relative rotation between input and output shafts which are connected by a torsion bar is converted into the relative rotation between an outer valve element and an inner valve element, the ratio of the relative rotation angle of the latter to the relative rotation angle of the former is varied in accordance with an operating condition of a vehicle. The hydraulic pressure to generate steering assist force is controlled in accordance with the relative rotation angles between both valve elements. The outer valve element is capable of relative coaxial rotation to the input and output shafts, and the inner valve element is formed integrally with the input shaft. A swinging member is supported by first, second and third supporting parts which respectively rotate together with the input shaft, the output shaft or the outer valve element. One of the first, second and third supporting parts is displaced in the axial direction by a certain distance in accordance with the operating condition of the vehicle.
摘要翻译： 在液压动力转向装置中，当通过扭杆连接的输入轴和输出轴之间的相对旋转被转换为外部阀元件和内部阀元件之间的相对转动时，后者的相对旋转角度 根据车辆的运行状态来改变前者的相对旋转角度。 根据两个阀元件之间的相对旋转角度来控制产生转向辅助力的液压。 外阀元件能够与输入轴和输出轴相对同轴旋转，并且内阀元件与输入轴一体形成。 摆动构件由分别与输入轴，输出轴或外部阀元件一起旋转的第一，第二和第三支撑部支撑。 第一，第二和第三支撑部件中的一个根据车辆的操作状态在轴向方向上移位一定距离。
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