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1. 发明公开

EP2769901A1 STEERING COLUMN SUPPORT DEVICE 有权
标题翻译： LENKSÄULENHALTEVORRICHTUNG
公开(公告)号：EP2769901A1
公开(公告)日：2014-08-27
申请号：EP12842529.5
申请日：2012-08-09
申请人： NSK Ltd.
发明人： HARADA, Kazuyuki , SAWA, Katsuhiko , TANAKA, Takahiro
IPC分类号： B62D1/18 , B62D5/04
CPC分类号： B62D1/187 , B62D1/189 , B62D5/04 , B62D5/0403
摘要： A steering column support apparatus for an electric power-steering apparatus with a tilt mechanism is achieved that is capable of sufficiently maintaining support rigidity of a tilt pivot shaft 15a to support a pivot bracket 28, and keeping the resistance when performing a tilt operation low with the durability of the side plate sections 32c of a pair of bushings 30c sufficiently maintained The portions of the outer circumferential surface of the tilt pivot shaft 15a and the inner circumferential surface of the through hole 29 that hold the cylindrical sections 31 of the bushings 30c are cylindrical surfaces. Moreover, main contact surface sections 36, which come in contact with the inner side surfaces of support plate sections 23 in the neutral state in which there is no assist reaction force, and sub contact surface sections 37, which do not come in contact with the support plate sections 23 in the neutral state, and come in contact with the inside surfaces of the support plate sections 23 only when there is elastic deformation due to the occurrence of an assist reaction force, are formed on outside surfaces of the side plate sections 32c of the bushings 30c.
摘要翻译：实现了一种具有倾斜机构的电动助力转向装置的转向柱支撑装置，其能够充分保持倾斜枢转轴15a的支撑刚度，以支撑枢轴支架28，并且在用低速执行倾斜操作时保持电阻一对衬套30c的侧板部32c的耐久性充分保持倾斜枢转轴15a的外周面的部分和保持套筒30c的圆筒部31的通孔29的内周面是圆柱面。此外，在没有辅助反作用力的中立状态下与支撑板部23的内侧面接触的主接触面部36以及不与第二接触面37接触的副接触面部37 支撑板部23处于中立状态，仅在由于发生辅助反作用力而弹性变形时与支撑板部23的内侧面接触形成在侧板部32c的外侧面的衬套30c。

2. 发明授权

EP2769901B1 STEERING COLUMN SUPPORT DEVICE 有权
标题翻译：柱夹持装置
公开(公告)号：EP2769901B1
公开(公告)日：2017-03-01
申请号：EP12842529.5
申请日：2012-08-09
申请人： NSK Ltd.
发明人： HARADA, Kazuyuki , SAWA, Katsuhiko , TANAKA, Takahiro
IPC分类号： B62D1/18 , B62D5/04 , B62D1/189 , B62D1/187
CPC分类号： B62D1/187 , B62D1/189 , B62D5/04 , B62D5/0403

3. 发明授权

EP2722254B1 ELECTRIC POWER STEERING APPARATUS 有权
公开(公告)号：EP2722254B1
公开(公告)日：2016-11-16
申请号：EP12801191.3
申请日：2012-06-11
申请人： NSK Ltd.
发明人： ISHII, Toru , YAMAMOTO, Takeshi , SAWA, Katsuhiko
IPC分类号： F16H55/24 , F16H57/021 , B62D5/04 , F16C19/16 , F16C25/08
CPC分类号： B62D5/0409 , F16C19/163 , F16C25/08 , F16C2326/24 , F16C2361/61 , F16C2380/27 , F16H19/02 , F16H55/24 , F16H2057/0213 , Y10T74/18792

4. 发明公开

EP2722254A1 ELECTRIC POWER STEERING APPARATUS 有权
标题翻译：电动转向装置
公开(公告)号：EP2722254A1
公开(公告)日：2014-04-23
申请号：EP12801191.3
申请日：2012-06-11
申请人： NSK Ltd.
发明人： ISHII, Toru , YAMAMOTO, Takeshi , SAWA, Katsuhiko
IPC分类号： B62D5/04 , F16C19/16 , F16C25/08 , F16C35/073 , F16H1/16
CPC分类号： B62D5/0409 , F16C19/163 , F16C25/08 , F16C2326/24 , F16C2361/61 , F16C2380/27 , F16H19/02 , F16H55/24 , F16H2057/0213 , Y10T74/18792
摘要： Construction of an electric power-steering apparatus is achieved that, by stably suppressing backlash of an output shaft 6a of an electric motor 5 over a long period of time, is able to stably reduce vibration and strange noise that occurs during operation. The front end section of the output shaft 6a and the base end section of a worm 7 are connected such that torque can be transmitted and such that relative displacement in the axial direction is possible An elastic member 31 having an elastic force in a direction that separates the output shaft 6a and worm 7 is provided in the connecting section between the output shaft 6a and the worm 7. Due to the elastic force of the elastic member 31, together with the tandem arrangement contact angles, the preload is applied to a pair of ball bearings 14a, 14b that support the output shaft 6a with respect to the motor case 13 such that the output shaft 6a can rotate freely.
摘要翻译：实现了电动助力转向装置的构造，其通过稳定地抑制电动机5的输出轴6a的反冲很长一段时间，能够稳定地减少运行期间发生的振动和奇怪的噪音。输出轴6a的前端部与蜗杆7的基端部以能够传递转矩的方式连结，并且能够沿轴向相对移位。弹性部件31在分离方向具有弹性力输出轴6a和蜗杆7设置在输出轴6a和蜗杆7之间的连接部分中。由于弹性部件31的弹性力以及串联布置的接触角，预载荷施加到一对滚珠轴承14a，14b相对于马达壳体13支撑输出轴6a，使得输出轴6a能够自由旋转。

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