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    • 6. 发明授权
    • Electric power steering apparatus
    • 电动助力转向装置
    • US06761244B2
    • 2004-07-13
    • US10355938
    • 2003-01-31
    • Osamu SanoHiroto Sasaki
    • Osamu SanoHiroto Sasaki
    • B62D504
    • B62D5/0409F16H1/16F16H55/24F16H57/021F16H2057/0213
    • An electric power steering apparatus includes a rolling bearing 9 for supporting rotatably a worm 6 that is rotated by a steering assisting electric motor 5; a first resilient portion 21 which is disposed in contact with the inner circumference of an inner ring 9b of the rolling bearing 9 and held on the worm 6 so that it is extendable by a force in an axial direction applied to the worm 6; and two resilient members 22 and 23, held in contact with both ends of the inner ring 9b, for restraining the movement of the worm 6 in the axial direction. Even when the electric power steering apparatus has a single rolling bearing, the worm 6 is moved in the axial direction by a steering force transmitted to the worm 6 from a worm wheel 7 in a steering range in which the motor 5 is not driven, and the steering load in the steering range in which the motor 5 is not driven is decreased.
    • 电动助力转向装置包括:滚动轴承9,用于支撑由转向辅助电动机5旋转的蜗杆6; 第一弹性部21,其与滚动轴承9的内圈9b的内周接触并保持在蜗杆6上,使其能够通过施加到蜗杆6的轴向方向的力而延伸; 以及与内圈9b的两端保持接触的两个弹性构件22和23,用于限制蜗杆6沿轴向的移动。 即使电动助力转向装置具有单个滚动轴承,也可以通过在电动机5未被驱动的转向范围内从蜗轮7向蜗杆6传递的转向力,使蜗杆6向轴向移动, 在马达5未被驱动的转向范围内的转向载荷减小。
    • 8. 发明授权
    • Rack-pinion mechanism in steering device
    • 转向装置中的齿条齿轮机构
    • US4762014A
    • 1988-08-09
    • US728317
    • 1985-04-29
    • Osamu Sano
    • Osamu Sano
    • B62D3/12F16H55/28F16H57/12
    • F16H55/283B62D3/123F16H55/285Y10T74/1967
    • Disclosed is a rack and pinion mechanism used in a steering device of a vehicle, in which when a pinion is engaged with rack teeth at an axially middle part of a rack bar, the rack bar is supported by supporting surfaces of a support yoke in the form of surface contact. When the pinion is engaged with the rack teeth at a part other than the axially middle part of the rack bar, on the contrary, the rack bar is supported by a rotary bearing mounted on the support yoke. Therefore, when a vehicle runs rectilinearly, the sliding resistance of the rack bar becomes large and the handle is stabilized, while when the vehicle turns, the sliding resistance becomes small and handling is made light because the rack bar is supported by a bearing.
    • 公开了一种用于车辆的转向装置中的齿条和小齿轮机构,其中当小齿轮在齿条的轴向中间部分处与齿条齿接合时,齿杆由支撑轭的支撑表面支撑在 表面接触形式。 相反,当小齿轮在齿条的轴向中间部分之外的部分与齿条齿接合时,齿条由安装在支撑轭上的旋转轴承支撑。 因此,当车辆直线运行时,齿条的滑动阻力变大并且手柄稳定,而当车辆转向时,滑动阻力变小,并且由于齿杆由轴承支撑而使得处理变轻。
    • 9. 发明授权
    • Hydraulic control valve and power steering apparatus using the same
    • 液压控制阀和使用其的动力转向装置
    • US07222693B2
    • 2007-05-29
    • US11212727
    • 2005-08-29
    • Osamu Sano
    • Osamu Sano
    • B62D5/10
    • B62D5/0837Y10T137/86638
    • The present invention provides a hydraulic control valve and a power steering apparatus using the same in which chamfer portions are provided only on throttle portions between oil supply chambers and first oil feed chambers and between the oil supply chambers and second oil feed chambers, or only throttle portions between oil discharge chambers 11 and the first oil feed chambers and between the oil discharge chambers 11 and the second oil feed chambers. With this design, even if six or more oil grooves of each of a valve body and a valve spool are disposed at equal distances from one another, when the minimum flow rate to be controlled is reduced as small as possible, a distribution amount for one portion where the flow rate is controlled can be doubled as compared with a conventional structure, it is possible to stabilize the hydraulic characteristics in a region where the flow rate to be controlled is minimum, and to eliminate the discontinuity of the hydraulic characteristics.
    • 本发明提供了一种液压控制阀和使用该液压控制阀的动力转向装置,其中仅在供油室和第一供油室之间以及供油室和第二供油室之间的节流部分上设置倒角部,或者仅限制油门 排油室11和第一供油室之间以及排油室11和第二供油室之间的部分。 利用这种设计,即使阀体和阀芯中的每一个的六个以上的油槽彼此相等设置,当要控制的最小流量尽可能地减小时,一个分配量 与常规结构相比,控制流量的部分可以增加一倍,可以使要控制的流量最小的区域中的液压特性稳定,并且消除液压特性的不连续性。