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21. 发明授权

US07806005B2 Magnetostrictive torque sensor and electric power steering apparatus including the same 有权
标题翻译：磁致伸缩转矩传感器和包括其的电动助力转向装置
公开(公告)号：US07806005B2
公开(公告)日：2010-10-05
申请号：US11730960
申请日：2007-04-05
申请人： Katsuji Watanabe , Yasuo Shimizu
发明人： Katsuji Watanabe , Yasuo Shimizu
IPC分类号： G01L3/00
CPC分类号： G01L5/221 , B62D6/10
摘要： This magnetostrictive torque sensor includes: a shaft made of a magnetized material; a magnetostrictive portion provided on the shaft at a position distanced for a predetermined length from an end of the shaft; a detection coil that is arranged so as to face the magnetostrictive portion, and detects a change in a magnetic characteristic of the magnetostrictive portion; and a plating made of an nonmagnetic material, that is provided on the end of the shaft.
摘要翻译：该磁致伸缩扭矩传感器包括：由磁化材料制成的轴; 磁致伸缩部，其设置在所述轴上，距离所述轴的端部远离预定长度的位置; 检测线圈，其被配置为面对磁致伸缩部分，并检测磁致伸缩部分的磁特性的变化; 以及设置在轴的端部上的由非磁性材料制成的电镀。

22. 发明申请

US20050235767A1 Worm gear mechanism and electric power steering apparatus employing the same 失效
标题翻译：蜗轮机构及采用该动力转向装置的电动助力转向装置
公开(公告)号：US20050235767A1
公开(公告)日：2005-10-27
申请号：US11095237
申请日：2005-03-29
申请人： Yasuo Shimizu , Katsuji Watanabe
发明人： Yasuo Shimizu , Katsuji Watanabe
IPC分类号： B62D5/04 , B62D6/00 , F16H1/16 , F16H55/24
CPC分类号： F16H55/24 , B62D5/0409 , Y10T74/18792 , Y10T74/19623 , Y10T74/19828 , Y10T74/19953
摘要： A worm gear mechanism includes a worm, a torque-transmitting worm wheel meshing with the worm, and an auxiliary worm wheel disposed concentrically with the torque-transmitting worm wheel. The auxiliary worm wheel has a pitch circle diameter set to be greater than a pitch circle diameter of the torque-transmitting worm wheel and hence meshes with the worm in a meshing phase different from that of the torque-transmitting worm wheel. A screw thread provided on the worm actually meshes with teeth of the torque-transmitting worm wheel along a length defined as an actual meshing length. The screw thread has an effective length reduced to be approximately equal to the actual meshing length.
摘要翻译：蜗轮机构包括蜗杆，与蜗杆啮合的扭矩传递蜗轮，以及与扭矩传递蜗轮同心设置的辅助蜗轮。辅助蜗轮的节圆直径设定为大于扭矩传递蜗轮的节圆直径，因此与蜗轮啮合的啮合相位与扭矩传递蜗轮不同。设在蜗杆上的螺纹线实际上沿着定义为实际啮合长度的长度与扭矩传递蜗轮的齿啮合。螺纹的有效长度减小到近似等于实际的啮合长度。

23. 发明授权

US08181549B2 Steering apparatus 失效
标题翻译：转向装置
公开(公告)号：US08181549B2
公开(公告)日：2012-05-22
申请号：US12384181
申请日：2009-04-01
申请人： Katsuji Watanabe , Yasuo Shimizu , Tsuyoshi Matsuo , Yousuke Tanaka
发明人： Katsuji Watanabe , Yasuo Shimizu , Tsuyoshi Matsuo , Yousuke Tanaka
IPC分类号： F16H55/22 , F16H1/04 , F16H35/00
CPC分类号： B62D3/12 , B62D3/126 , B62D5/0409 , F16H55/0806 , F16H55/0853 , F16H55/26 , Y10T74/1967 , Y10T74/19953
摘要： An electric power steering apparatus 10 has an electric motor 46 for supplying an auxiliary force to a steering force inputted from a steering wheel 16, and transmits the steering force including the auxiliary force to a steered road-wheel 14 at least partially via a rack-and-pinion mechanism 30, thereby performing steering of a vehicle 12. The rack-and-pinion mechanism 30 includes: a pinion 38 provided at a pinion shaft 28 connected to the steering wheel 16; a rack 40 that is provided over a predetermined width at a rack shaft 32 connected to the steered road-wheel 14, and that is engaged with the pinion 38; and a rack guide 70 for urging the rack shaft 32 toward the pinion 38. A pressure angle α1 of a tooth root of the rack 40 is set to be greater than a pressure angle α0 of a tooth tip of the rack 40.
摘要翻译：电动助力转向装置10具有用于向从方向盘16输入的转向力提供辅助力的电动机46，并且至少部分地经由机架式转向装置将包括辅助力的转向力传递给转向车轮14，齿轮齿条机构30包括：小齿轮38，其设置在与方向盘16连接的小齿轮轴28处; 在与转向车轮14连接并与小齿轮38接合的齿条轴32上设置有预定宽度的齿条40; 以及用于将齿条轴32朝向小齿轮38推压的齿条引导件70.齿条40的齿根的压力角α1被设定为大于齿条40的齿尖的压力角α0。

24. 发明授权

US5836419A Rack and pinion electric power steering system with unitized construction for removable mounting 失效
标题翻译：齿条电动助力转向系统，具有可拆卸安装的组合结构
公开(公告)号：US5836419A
公开(公告)日：1998-11-17
申请号：US580072
申请日：1995-12-20
申请人： Yasuo Shimizu , Katsuji Watanabe
发明人： Yasuo Shimizu , Katsuji Watanabe
IPC分类号： B62D5/04
CPC分类号： B62D5/0403 , B62D5/04
摘要： A unit-type electric power steering system comprises a steering mechanism having a first shaft and a second shaft. The first shaft has an input shaft for connection to a steering shaft, and an output shaft connected to the input shaft for angular displacement relative thereto and for connection in driving engagement with the second shaft. The second shaft is disposed in a case for displacement therein. A torque sensor detects a steering torque of the steering mechanism, and an electric motor outputs a steering assist force to the first shaft in response to the steering torque detected by the torque sensor. The first shaft, the torque sensor and the electric motor define components integrated into a single unit for removable connection to and disconnection from the second shaft and the case as a single unit without independent connection and disconnection of any one of the components.
摘要翻译：单元式电动助力转向系统包括具有第一轴和第二轴的转向机构。第一轴具有用于连接到转向轴的输入轴和连接到输入轴的输出轴，用于与其相对的角位移并且用于与第二轴的驱动接合连接。第二轴设置在其中用于移位的壳体中。扭矩传感器检测转向机构的转向转矩，并且电动马达响应于由转矩传感器检测到的转向转矩而向第一轴输出转向辅助力。第一轴，扭矩传感器和电动机限定集成到单个单元中的部件，用于可拆卸地连接到第二轴和壳体作为单个单元，而不需要独立地连接和断开任何一个部件。

25. 发明授权

US07654167B2 Electric power steering apparatus equipped with worm gear mechanism 失效
标题翻译：电动助力转向装置配有蜗轮机构
公开(公告)号：US07654167B2
公开(公告)日：2010-02-02
申请号：US11727933
申请日：2007-03-29
申请人： Katsuji Watanabe , Yasuo Shimizu
发明人： Katsuji Watanabe , Yasuo Shimizu
IPC分类号： F16H55/22
CPC分类号： F16H55/06 , B62D5/0409 , F16H55/22 , F16H55/24 , F16H55/283 , Y10T74/18792 , Y10T74/19623 , Y10T74/19828 , Y10T74/19953
摘要： An electric power steering apparatus includes a worm gear mechanism for transmitting the torque generated by an electric motor to a steered road wheel of the vehicle. The worm gear mechanism has a worm gear made of metal and a worm wheel formed of plastic material and meshing with the worm gear. The worm gear has a tooth profile including a dedendum part formed in an involute shape and an addendum part formed in a circular arc shape with a center located on a line of action.
摘要翻译：电动助力转向装置包括用于将由电动机产生的扭矩传递到车辆的转向车轮的蜗轮机构。蜗轮机构具有由金属构成的蜗轮和由塑料材料形成并与蜗轮啮合的蜗轮。蜗轮具有包括形成为渐开线形状的齿根部分和形成为具有中心位于作用线上的圆弧形状的齿顶部分的齿廓。

26. 发明申请

US20070227279A1 Electric power steering apparatus equipped with worm gear mechanism 失效
标题翻译：电动助力转向装置配有蜗轮机构
公开(公告)号：US20070227279A1
公开(公告)日：2007-10-04
申请号：US11727933
申请日：2007-03-29
申请人： Katsuji Watanabe , Yasuo Shimizu
发明人： Katsuji Watanabe , Yasuo Shimizu
IPC分类号： F16H27/02
CPC分类号： F16H55/06 , B62D5/0409 , F16H55/22 , F16H55/24 , F16H55/283 , Y10T74/18792 , Y10T74/19623 , Y10T74/19828 , Y10T74/19953
摘要： An electric power steering apparatus includes a worm gear mechanism for transmitting the torque generated by an electric motor to a steered road wheel of the vehicle. The worm gear mechanism has a worm gear made of metal and a worm wheel formed of plastic material and meshing with the worm gear. The worm gear has a tooth profile including a dedendum part formed in an involute shape and an addendum part formed in a circular arc shape with a center located on a line of action.
摘要翻译：电动助力转向装置包括用于将由电动机产生的扭矩传递到车辆的转向车轮的蜗轮机构。蜗轮机构具有由金属构成的蜗轮和由塑料材料形成并与蜗轮啮合的蜗轮。蜗轮具有包括形成为渐开线形状的齿根部分和形成为具有中心位于作用线上的圆弧形状的齿顶部分的齿廓。

27. 发明申请

US20050235768A1 Worm gear mechanism and electric power steering apparatus equipped with the worm gear mechanism 有权
标题翻译：蜗轮机构和电动助力转向装置配有蜗轮机构
公开(公告)号：US20050235768A1
公开(公告)日：2005-10-27
申请号：US11114559
申请日：2005-04-26
申请人： Yasuo Shimizu , Katsuji Watanabe , Takahiro Aoki , Yasuhiro Terada , Ryoji Toyofuku
发明人： Yasuo Shimizu , Katsuji Watanabe , Takahiro Aoki , Yasuhiro Terada , Ryoji Toyofuku
IPC分类号： B62D5/04 , F16H1/16 , F16H55/06 , F16H55/24
CPC分类号： B62D5/0409 , Y10T74/19623 , Y10T74/19828
摘要： Worm gear mechanism includes a driving worm, a torque delivering worm wheel meshing with the worm, and an auxiliary worm wheel superimposed on the torque delivering worm wheel. The auxiliary worm wheel has a pitch diameter greater than that of the torque delivering worm wheel. The auxiliary worm wheel is biased against the driving worm wheel via a biasing member in the form of a leaf spring.
摘要翻译：蜗轮机构包括驱动蜗杆，与蜗杆啮合的扭矩输送蜗轮，以及叠加在扭矩传递蜗轮上的辅助蜗轮。辅助蜗轮的直径大于扭矩输送蜗轮的直径。辅助蜗轮通过叶簧形式的偏置构件偏压驱动蜗轮。

28. 发明授权

US5899294A Electric power steering device 失效
标题翻译：电动助力转向装置
公开(公告)号：US5899294A
公开(公告)日：1999-05-04
申请号：US858656
申请日：1997-05-19
申请人： Yasuo Shimizu , Katsuji Watanabe
发明人： Yasuo Shimizu , Katsuji Watanabe
IPC分类号： B62D5/04 , F16D41/10 , F16D43/02
CPC分类号： B62D5/043 , B62D5/0439 , F16D41/105 , F16D43/02
摘要： In an electric power steering device of the type wherein an input member connected to an electric motor and an output shaft including an output member connected to a steering wheel are connected via a plurality of sets of friction clutch mechanisms for transmitting an auxiliary torque from the electric motor to the output shaft, the output member is displaceable in a radial direction relative to the input member. In response to rotation of position control members of the friction clutch mechanisms, one of the friction clutch mechanisms sets is disengaged whereupon a force or pressure exerted from the locking members of the other friction clutch mechanism sets to the output member forces the output member to move in the radial direction relative to the input member. With this movement of the output member, a frictional engagement force acting between the locking members and the input and output members is reduced. Thus, the friction clutch mechanisms can be readily disengaged by a force which is much smaller than the force required to disengage all the friction clutch mechanisms at one time.
摘要翻译：在一种电动助力转向装置中，其中连接到电动机的输入构件和包括连接到方向盘的输出构件的输出轴经由多组摩擦离合器机构连接，用于从电气传递辅助转矩马达到输出轴，输出构件可相对于输入构件在径向方向上移位。响应于摩擦离合器机构的位置控制构件的旋转，摩擦离合器机构组中的一个脱开，从另一个摩擦离合器机构的锁定构件施加的力或压力设置到输出构件，迫使输出构件移动在相对于输入构件的径向方向上。通过输出构件的移动，减小了作用在锁定构件和输入和输出构件之间的摩擦接合力。因此，摩擦离合器机构可以容易地通过比同时脱离所有摩擦离合器机构所需的力小得多的力来分离。

29. 发明申请

US20090107271A1 Rack-and-pinion steering apparatus 有权
标题翻译：机架式小齿轮转向装置
公开(公告)号：US20090107271A1
公开(公告)日：2009-04-30
申请号：US12287272
申请日：2008-10-07
申请人： Tsuyoshi Matsuo , Yasuo Shimizu , Katsuji Watanabe
发明人： Tsuyoshi Matsuo , Yasuo Shimizu , Katsuji Watanabe
IPC分类号： B62D3/12 , F16H55/26
CPC分类号： B62D3/123 , F16H55/283 , F16H55/286 , Y10T74/1967
摘要： A rack-and-pinion steering apparatus in which a steering gear box for transmitting an operation of a steering wheel to road wheels includes a pinion operatively connected to the steering wheel, a rack bar which has a rack meshing with the pinion, and which is operatively connected to the road wheels, a housing slidably supporting the rack bar, a cylindrical rack guide slidably fitted into a guide hole formed in the housing, and a spring member causing the rack guide to abut on a rear part of the rack bar opposite to the rack by biasing the rack guide. A reaction force, which the rack guide receives from the rack bar, acts on the rack guide in such a way as to cause a rotational moment of the rack guide about an axis different from an axis of the rack guide.
摘要翻译：一种齿轮齿条转向装置，其中用于将方向盘操作传递到车轮的转向齿轮箱包括可操作地连接到方向盘的小齿轮，具有与小齿轮啮合的齿条的齿条，可操作地连接到所述车轮，可滑动地支撑所述齿条的壳体，可滑动地装配到形成在所述壳体中的引导孔中的圆柱形齿条引导件和使所述齿条引导件邻接在与所述齿条相对的齿条上的后部的弹簧构件机架通过偏置机架导轨。机架引导件从机架杆接收的反作用力以使得齿条引导件的旋转力矩绕与齿条引导件的轴线不同的轴线的方式作用在齿条引导件上。

30. 发明授权

US07377194B2 Worm gear mechanism and electric power steering apparatus equipped with the worm gear mechanism 有权
标题翻译：蜗轮机构和电动助力转向装置配有蜗轮机构
公开(公告)号：US07377194B2
公开(公告)日：2008-05-27
申请号：US10824262
申请日：2004-04-13
申请人： Yasuo Shimizu , Katsuji Watanabe
发明人： Yasuo Shimizu , Katsuji Watanabe
IPC分类号： B62D5/24 , F16H55/24
CPC分类号： B62D5/0409 , F16H55/24 , Y10T74/19623 , Y10T74/19828
摘要： Worm gear mechanism is provided which includes a worm, a torque-transmitting worm wheel and an auxiliary worm wheel. In order to secure a sufficient face width of the torque-transmitting worm wheel, a pitch diameter of the auxiliary worm wheel is set to be greater than a pitch diameter of the torque-transmitting worm wheel. Thus, undesired backlash can be eliminated by the auxiliary worm wheel meshing with the worm with a different meshing phase from the torque-transmitting worm wheel.
摘要翻译：提供了蜗轮机构，其包括蜗杆，扭矩传递蜗轮和辅助蜗轮。为了确保扭矩传递蜗轮的足够的面宽度，辅助蜗轮的节圆直径被设定为大于扭矩传递蜗轮的节圆直径。因此，与来自扭矩传递蜗轮的不同啮合相的蜗杆与蜗轮啮合的辅助蜗轮可以消除不希望的齿隙。

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