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1. 发明公开

EP3660346A1 TORQUE TRANSMISSION JOINT AND ELECTRIC POWER STEERING DEVICE 有权
公开(公告)号：EP3660346A1
公开(公告)日：2020-06-03
申请号：EP18839089.2
申请日：2018-07-23
申请人： NSK Ltd.
发明人： KUROKAWA, Yoshifumi , SEGAWA, Toru , ISHII, Toru
IPC分类号： F16D1/02 , B62D5/04 , F16D3/50
摘要： Provided is a torque transmission joint that makes it possible to transmitting torque continuously between a pair of end section transmission members even when the torque transmission function of an intermediate transmission member is deteriorated.
The torque transmission joint includes an intermediate transmission member 19, and a first transmission member 17 and a second transmission member 18 that are arranged with one each on both side sections in the axial direction of the intermediate transmission member 19, with the outer side sections in the radial direction of each engaging with the inside section in the radial direction of the intermediate transmission member 19. The first transmission member 17 and the second transmission member 18 have a first preliminary engagement section 63 and a second preliminary engagement section 66 at the end sections in the axial direction on sides close to each other. The first preliminary engagement section 63 and the second preliminary engagement section 66 engage with each other with a circumferential gap interposed therebetween that does not disappear when torque transmission is performed between the first transmission member 17 and the second transmission member 18 via the intermediate transmission member 19.

2. 发明公开

EP3499070A1 JOINT FOR TORQUE TRANSMISSION, AND ELECTRIC POWER STEERING DEVICE 有权
公开(公告)号：EP3499070A1
公开(公告)日：2019-06-19
申请号：EP17839429.2
申请日：2017-08-07
申请人： NSK Ltd.
发明人： ISHII, Toru , SEGAWA, Toru , OOSAWA, Ryou , NISHIMURA, Nobuyuki
IPC分类号： F16D3/74 , B62D5/04
摘要： A driving-side concave-convex portion (22) of a driving-side transmission member (17) fixed to an output shaft (12a) is engaged with a driving-side elastic member (20). A driving-side concave-convex portion (22) is engaged with an intermediate concave-convex portion (31) of an intermediate transmission member (19) in a state where a circumferential gap interposed therebetween is larger than a circumferential gap interposed between the driving-side concave-convex portion (22) and the driving-side elastic member (20) at an engagement portion therebetween. A driven-side concave-convex portion (26) of a driven-side transmission member (18) fixed to a worm shaft (6a) is engaged with the driven-side elastic member (21). The driven-side concave-convex portion (26) is engaged with the intermediate concave-convex portion (31) in a state where a circumferential gap interposed therebetween is larger than a circumferential gap interposed between the driven-side concave-convex portion (26) and the driven-side elastic member (21) at an engagement portion therebetween. Both axial side surfaces and inner periphery of the intermediate transmission member (19) are covered by the driving-side elastic member (20) and the driven-side elastic member (21).

3. 发明公开

EP3926190A1 WORM REDUCER AND ELECTRIC ASSIST DEVICE 审中-实审
公开(公告)号：EP3926190A1
公开(公告)日：2021-12-22
申请号：EP20755430.4
申请日：2020-01-15
申请人： NSK Ltd.
发明人： OOSAWA, Ryou , ISHIKURI, Satoshi , KIYOTA, Haruhiko , MATSUMOTO, Souta , ISHII, Toru , SUGAWARA, Hiroyuki
IPC分类号： F16C19/06 , F16C27/06 , F16H1/16 , B62D5/04 , F16H55/24
摘要： A structure capable of preventing the tip end portion of the worm from being displaced in a direction orthogonal to the biasing direction is provided for the worm reducer comprising a means for elastically biasing the tip end portion of the worm toward the worm wheel side. The support bearing 17 supports the tip end portion of the worm 16 is elastically biased toward the worm wheel 15 side by the elastic biasing means 81, and the support bearing 17 is elastically held by the elastic holding means 82 from both sides in the second direction orthogonal to the first direction parallel to the biasing direction by the elastic biasing means 81 and to the center axis of the worm housing portion 22.

4. 发明公开

EP3604845A1 TORQUE TRANSMITTING JOINT AND ELECTRIC POWER STEERING DEVICE 无效
公开(公告)号：EP3604845A1
公开(公告)日：2020-02-05
申请号：EP18777722.2
申请日：2018-03-28
申请人： NSK Ltd.
发明人： SEGAWA, Toru , OOSAWA, Ryou , ISHII, Toru , SUGIHARA, Ryota , YAMAMOTO, Takeshi , FUJITA, Akihide
IPC分类号： F16D3/68 , B62D5/04 , F16D3/74
摘要： Provided is a torque transmission joint that is able to suppress occurrence of noise when reversing the direction of rotation of the drive shaft. The first transmission member 17 fixed to the output shaft 12a which is a drive shaft is engaged with the first elastic member 20 in a state where the first gap in the circumferential direction is interposed, as well as with the intermediate transmission member 19 in a state where a gap in the circumferential direction which is larger than the first gap is interposed. The second transmission member 18 fixed to an end portion of the worm 8 is engaged with the second elastic member 21 in a state where the second gap in the circumferential direction is interposed, as well as with the intermediate transmission member 19 in a state where a gap in the circumferential direction which is larger than the second gap. The first annular convex portion 54 is pressure fitted to the first annular concave portion 38, and the second annular convex portion 60 is pressure fitted to the second annular concave portion 45 so as to prevent separation of the first, second elastic members 20, 21 with respect to the intermediate transmission member 19.

5. 发明公开

EP3495687A1 WORM GEAR REDUCER 有权
公开(公告)号：EP3495687A1
公开(公告)日：2019-06-12
申请号：EP17853066.3
申请日：2017-09-20
申请人： NSK Ltd.
发明人： ISHII, Toru , SEGAWA, Toru
IPC分类号： F16H1/16 , F16H57/039
摘要： A worm reducer includes: a housing including a wheel accommodating portion, and a worm accommodating portion; a worm wheel including wheel teeth disposed on an outer circumferential surface and rotatably supported inside the wheel accommodating portion; and a worm including worm teeth disposed on an outer circumferential surface to mesh with the wheel teeth and rotatably supported inside the worm accommodating portion, wherein a proximal end portion of the worm is connected to a drive shaft such that torque can be transmitted. An inner circumferential surface of the worm accommodating portion includes a housing side step surface which faces a proximal end side in an axial direction of the worm. An outer circumferential surface of the worm includes a worm side step surface which closely faces the housing side step surface in the axial direction at a portion axially deviated from a portion where the worm teeth are disposed.

6. 发明公开

EP2698300A1 STEERING DEVICE 有权
标题翻译： STEUERGERÄT
公开(公告)号：EP2698300A1
公开(公告)日：2014-02-19
申请号：EP12729829.7
申请日：2012-04-12
申请人： NSK Ltd.
发明人： ISHII, Toru
IPC分类号： B62D1/19 , B60R21/05
CPC分类号： B62D1/195
摘要： In a steering apparatus including a column 46, a column 42, a bracket 21 movable with respect to the column 42 upon a secondary collision, a member 81 attaching to the moving bracket 21 and absorbing impact energy with making plastic deformation, a guide bracket 61 fixed to the column 46 and having a guide groove 63 guiding movement of the column 42, and a guide pin 71 fixed to the bracket 21 and movable with the bracket 21 with being guided by the guide groove 63, the guide bracket 61 includes a gap forming portion 61e forming a gap 61d between the guide bracket 61 and the bracket 21, a member 81 is latched to the guide bracket 61 and includes an extending portion extending along the gap 61d, thereby providing a steering apparatus not necessary to fix an end of an impact-energy-absorption member to a vehicle-body-side bracket upon attaching the steering apparatus to the vehicle body, or not restricting a shape of a connecting member by the impact-energy-absorption member.
摘要翻译：在包括柱46，柱42，在二次碰撞时可相对于柱42移动的支架21的转向装置中，安装到移动支架21并吸收冲击能量而造成塑性变形的构件81，引导支架61 固定到柱46并具有引导柱42的运动的引导槽63和固定到支架21的导向销71，并且通过引导槽63被引导而与托架21一起移动，引导托架61包括间隙形成部分61e在引导支架61和支架21之间形成间隙61d，构件81被锁定到引导支架61，并且包括沿间隙61d延伸的延伸部分，从而提供一种不需要固定将转向装置安装在车体上时，将冲击能量吸收部件安装在车体侧支架上，或者不受冲击能量吸收部件限制连接部件的形状。

7. 发明公开

EP2687422A1 STEERING DEVICE 有权
标题翻译：转向装置
公开(公告)号：EP2687422A1
公开(公告)日：2014-01-22
申请号：EP12728941.1
申请日：2012-03-15
申请人： NSK Ltd.
发明人： ISHII, Toru , TANAKA, Takahiro
IPC分类号： B62D1/19 , B60R21/05 , B62D1/18
CPC分类号： B62D1/195 , B60R21/09
摘要： A steering apparatus has a column 46, a column 42 fitted to the column 46 and able to make collapsing movement or move, a bracket 21 attached to a vehicle body in such a way that it can be detached with the column 42 by an impact force of a secondary collision, a guide bracket 61 fixed to the column 46 and having a guide groove 63, and a pin 71 fixed to the bracket 21 and movable with the bracket 21 while being guided by the guide groove 63. The guide bracket 61 has a flat plate portion 61d that is not contact with the bracket 21. A guide groove 63 is provided in the flat plate portion 61d. The pin 71 has a head portion 713 at the top having a diameter larger than its shaft portion. The apparatus has a gap setting portion that is in abutment with the upper surface of the bracket 21 when the pin 71 is fixed to the bracket 21 to set the distance between the lower surface of the head portion 713 and the upper surface of the bracket 21 to a predetermined value. Thus, there is provided a steering apparatus in which the detaching force upon detachment of the column 42 in the forward direction with respect to the vehicle body by the impact force of a secondary collision can be adjusted accurately with an easy detaching force adjusting operation.
摘要翻译：转向装置具有：支柱（column）46，安装在该支柱46上且能够进行收缩移动或移动的支柱（column）42，安装在车体上的支架21，通过冲击力与支柱42分离固定在支柱46上并具有导向槽63的导向支架61以及固定在支架21上并可在与导向槽63导向的同时与支架21一起移动的销71.导向支架61具有平板部分61d，该平板部分61d不与支架21接触。导向槽63设置在平板部分61d中。销71的顶部具有比其轴部直径大的头部713。该装置具有间隙设定部，该间隙设定部在将销71固定在托架21上而设定头部713的下表面与托架21的上表面之间的距离时与托架21的上表面抵接到预定值。因此，提供了一种转向装置，其中通过二次碰撞的冲击力可以精确地调节柱42在向前方向上相对于车体的拆卸时的拆卸力，并且可以通过容易的拆卸力调节操作来精确地调节。

8. 发明公开

EP4071980A1 TORQUE TRANSFER JOINT AND ELECTRIC MOTOR WITH WORM REDUCTION GEAR 有权
公开(公告)号：EP4071980A1
公开(公告)日：2022-10-12
申请号：EP20895822.3
申请日：2020-12-02
申请人： NSK Ltd.
发明人： ISHII, Toru , SEGAWA, Toru , OSAWA, Ryo , UCHIYAMA, Yuki
IPC分类号： H02K7/00 , H02K7/116 , F16D3/68 , B62D5/04
摘要： A torque transmission joint includes a first elastic body having a plurality of first elastic pieces pinched in a circumferential direction between respective first convex portions and a coupling, and a second elastic body having a plurality of second elastic pieces pinched in the circumferential direction between respective second convex portions and the coupling.

9. 发明授权

EP3499070B1 JOINT FOR TORQUE TRANSMISSION, AND ELECTRIC POWER STEERING DEVICE 有权
公开(公告)号：EP3499070B1
公开(公告)日：2020-02-19
申请号：EP17839429.2
申请日：2017-08-07
申请人： NSK Ltd.
发明人： ISHII, Toru , SEGAWA, Toru , OOSAWA, Ryou , NISHIMURA, Nobuyuki
IPC分类号： F16D3/74 , B62D5/04

10. 发明授权

EP2687422B1 STEERING DEVICE 有权
公开(公告)号：EP2687422B1
公开(公告)日：2016-08-24
申请号：EP12728941.1
申请日：2012-03-15
申请人： NSK Ltd.
发明人： ISHII, Toru , TANAKA, Takahiro
IPC分类号： B62D1/19 , B62D1/18 , B60R21/05
CPC分类号： B62D1/195 , B60R21/09

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