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71. 发明公开

EP3603846A1 SHAFT FOR STEERING DEVICE, METHOD FOR PRODUCING SHAFT FOR STEERING DEVICE, AND ELECTRIC POWER STEERING DEVICE 有权
公开(公告)号：EP3603846A1
公开(公告)日：2020-02-05
申请号：EP18777266.0
申请日：2018-02-13
申请人： NSK Ltd.
发明人： SUEHIRO, Tatsuya , YASUDA, Kaname , YAMADA, Kazuya
IPC分类号： B21K1/12 , B21J5/06 , B21J5/10 , B62D1/20 , B62D5/04 , F16D1/02
摘要： To provide a method of manufacturing a shaft for a steering device, the shaft including a spline shaft part to be coupled with an input shaft, a stopper part to be coupled with an output shaft, and an intermediate shaft part that couples the spline shaft part with the stopper part. The method includes: a step of forming a hole part recessed in an axial direction from one end of a pillar-shaped material by forging; and a step of pressing the material in which the hole part has been formed into a die to perform drawing in a radial direction on a portion of the material at which the stopper part is formed and prolonging a length along the axial direction of the hole part at the same time by forging.

72. 发明授权

EP3059470B1 BALL SCREW 有权
公开(公告)号：EP3059470B1
公开(公告)日：2020-01-15
申请号：EP14865673.9
申请日：2014-11-27
申请人： NSK Ltd.
发明人： MIYAZAKI, Kazunari , MARUYAMA, Daisuke
IPC分类号： F16H25/24 , F16H25/22 , F16H57/04

73. 发明授权

EP3459822B1 CONTROL DEVICE FOR ELECTRIC POWER STEERING DEVICE 有权
公开(公告)号：EP3459822B1
公开(公告)日：2020-01-08
申请号：EP17843586.3
申请日：2017-08-22
申请人： NSK Ltd.
发明人： TSUBAKI, Takahiro , KAWADA, Hideaki
IPC分类号： B62D6/00 , B62D5/04 , B62D1/28 , B62D15/02

74. 发明授权

EP3309419B1 ROTATION TRANSMISSION DEVICE 有权
公开(公告)号：EP3309419B1
公开(公告)日：2019-12-25
申请号：EP17204705.2
申请日：2013-11-08
申请人： NSK Ltd.
发明人： Matsuda, Yasuyuki , Gunji, Daisuke , Hikida, Masafumi , Tanaka, Kazutaka , Ueda, Tooru , Takehara, Tetsu , Saito, Tomoharu , Yoshioka, Hiroyasu , Kaneko, Yuka
IPC分类号： F16C33/66 , F16F15/121 , F16C19/36 , F16C19/46 , F16H57/00 , F16C33/58 , G01L3/10 , F16H59/14

75. 发明公开

EP3572303A1 ELECTRIC POWER STEERING APPARATUS 审中-公开
公开(公告)号：EP3572303A1
公开(公告)日：2019-11-27
申请号：EP18754413.5
申请日：2018-02-19
申请人： NSK Ltd.
发明人： SAWADA, Hideki , FUJIWARA, Yukie , MINAKI, Ryo , SUGAWARA, Takayoshi
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D113/00 , B62D119/00
摘要： [Problem]
An object of the present invention is to provide an electric power steering apparatus that accurately judges a manual input without affecting a noise relate to a free vibration system and influencing an external disturbance.
[Means for solving the problem]
The present invention is the electric power steering apparatus that drives and controls a motor which applies an assist orque to a steering system of a vehicle and has a function switching between an assist mode and an automatic mode, comprising a torsion bar torsional angle calculating section to calculate a torsion bar torsional angle based on a torque information, an output-side column shaft relative angle generating section to output an output-side relative angle from an electrical angle signal of the motor, an actual handle angle calculating section to calculate an actual handle angle based on the torsion bar torsional angle and the output-side relative angle, a resonance filter to obtain an estimated handle angle in a hands-off state from the output-side relative angle, and a hands-on/off judging section to judge a hands-on state when a time that a deviation angle between the actual handle angle and the estimated handle angle is equal to or more than a predetermined angle is continued for the predetermined time or more.

76. 发明授权

EP3211258B1 COMBINATION BALL BEARING AND MAIN SHAFT DEVICE FOR MACHINE TOOL 有权
公开(公告)号：EP3211258B1
公开(公告)日：2019-11-20
申请号：EP15853378.6
申请日：2015-09-29
申请人： NSK Ltd.
发明人： MATSUNAGA, Kyohei , KATSUNO, Yoshiaki , MATSUYAMA, Naoki
IPC分类号： F16C19/56 , B23B19/02 , F16C19/16 , F16C25/08

77. 发明授权

EP3153274B1 AUTOMATIC WORKPIECE CENTERING APPARATUS AND AUTOMATIC CENTERING METHOD 有权
公开(公告)号：EP3153274B1
公开(公告)日：2019-11-13
申请号：EP15803309.2
申请日：2015-05-22
申请人： NSK Ltd.
发明人： NAKANO Makoto
IPC分类号： B23Q3/18 , B23Q1/38 , B23Q16/00

78. 发明授权

EP3263937B1 JOINT FOR TORQUE TRANSMISSION AND WORM REDUCTION GEAR 有权
公开(公告)号：EP3263937B1
公开(公告)日：2019-09-04
申请号：EP16786543.5
申请日：2016-04-27
申请人： NSK Ltd.
发明人： OOSAWA Ryou , NISHIMURA Nobuyuki
IPC分类号： F16D3/58 , F16H55/24 , B62D5/04 , F16D3/74 , H02K7/00

79. 发明公开

EP3530985A1 ACTUATOR 审中-公开
公开(公告)号：EP3530985A1
公开(公告)日：2019-08-28
申请号：EP17863438.2
申请日：2017-05-15
申请人： NSK Ltd.
发明人： TAGUCHI, Toshifumi
IPC分类号： F16H25/24 , F16H25/20
摘要： An actuator includes a frame, a guide rail attached to the frame, a slider guided by the guide rail, a rotational motion-linear motion conversion mechanism that is disposed on a side opposite to the guide rail with the frame interposed therebetween and includes a screw shaft supported by the frame and a nut attached to the screw shaft, and a coupling member that couples the slider and the nut. The coupling member is coupled to the nut via a nut bracket. The coupling member is an annular member along an axial direction of the screw shaft, and includes a slider connection portion that has a plate shape and is fixed to the slider, and a nut bracket connection portion that has a plate shape and is fixed to the nut bracket.

80. 发明授权

EP3372852B1 ROTATION SUPPORT DEVICE FOR PINION SHAFT 失效
公开(公告)号：EP3372852B1
公开(公告)日：2019-08-21
申请号：EP18168830.0
申请日：2010-11-19
申请人： NSK Ltd.
发明人： TANAKA, Takanori , SAITO, Tomoharu , TANOUE, Yasushi
IPC分类号： F16C19/16 , F16C19/18 , F16C19/50 , F16C19/54 , F16C19/56 , F16C41/02 , F16H1/14 , F16H48/42

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