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公开(公告)号：US20090250288A1
公开(公告)日：2009-10-08
申请号：US12384181
申请日：2009-04-01
IPC分类号： B62D5/04
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。
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公开(公告)号：US08181549B2
公开(公告)日：2012-05-22
申请号：US12384181
申请日：2009-04-01
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。
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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
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。
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公开(公告)号：US07870805B2
公开(公告)日：2011-01-18
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
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。
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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。
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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。
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7.发明申请公开(公告)号：US20050235768A1
公开(公告)日：2005-10-27
申请号：US11114559
申请日：2005-04-26
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。
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公开(公告)号：US06868936B2
公开(公告)日：2005-03-22
申请号：US10397489
申请日：2003-03-26
申请人： Yasuo Shimizu , Katsuji Watanabe , Atsuhiko Yoneda
发明人： Yasuo Shimizu , Katsuji Watanabe , Atsuhiko Yoneda
CPC分类号： B62D5/0424 , F16H2025/2096
摘要： An improvement to an electric power steering apparatus which applies an assisting torque produced by an electric motor in correspondence with a steering torque to a rack shaft by way of a belt type transmission mechanism. A driving pulley of the belt type transmission mechanism is mounted to an output shaft part of the motor shaft of the electric motor. This output shaft part is rotatably supported at locations on both sides of the driving pulley.
摘要翻译： 一种电动助力转向装置的改进，其通过带式传动机构将与电动机产生的对应于转向转矩的辅助转矩施加到齿条轴。 皮带式传动机构的驱动皮带轮安装在电动马达的马达轴的输出轴部分上。 该输出轴部可旋转地支撑在驱动带轮的两侧的位置。
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公开(公告)号：US06752424B2
公开(公告)日：2004-06-22
申请号：US10268368
申请日：2002-10-10
IPC分类号： B62D100
CPC分类号： B62D6/10 , B62D1/163 , F16C1/106 , F16C1/18 , F16C2326/24
摘要： A cable type steering system includes a drive pulley coupled to a steering wheel for rotation and having a drive pulley main body, a driven pulley coupled to a steering gear box for steering wheels for rotation and having a driven pulley main body, and an operation cable connecting the drive pulley with the driven pulley, so that a steering torque inputted to the steering wheel is transmitted to the steering gear box via the operation cable. At least one of the drive pulley main body and the driven pulley main body may be molded of a synthetic resin in such a manner as to cover a detent portion formed on an outer circumference of a pulley boss made of a metal both from an axial direction and a radial direction, and at least part of the covered detent portion is visible from outside of the covering pulley main body.
摘要翻译： 一种电缆式转向系统，包括一个与方向盘连接的驱动轮，用于转动，并具有一个驱动皮带轮主体，一个从动皮带轮，与一个用于旋转的方向盘的转向齿轮箱相连，并具有从动皮带轮主体， 将驱动皮带轮与从动皮带轮连接的电缆，使得输入到方向盘的转向扭矩经由操作电缆传递到转向齿轮箱。 驱动皮带轮主体和从动皮带轮主体中的至少一个可以由合成树脂模制成以覆盖形成在由轴向方向制成的滑轮凸起的外周上的止动部分 并且径向方向，并且覆盖的止动部分的至少一部分从覆盖带轮主体的外部可见。
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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
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。
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