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公开(公告)号：US09067491B2
公开(公告)日：2015-06-30
申请号：US14354765
申请日：2012-10-24
Applicant: NSK Ltd.
Inventor： Kazutaka Tanaka , Eiji Inoue , Takashi Imanishi , Yasuyuki Matsuda , Daisuke Gunji
CPC classification number: B60K17/12 , B60K1/00 , B60K2001/001 , B60L15/2054 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/486 , F16H3/46 , F16H3/663 , F16H2003/442 , F16H2061/2884 , F16H2061/2892 , F16H2200/0021 , F16H2200/0034 , F16H2200/2005 , F16H2200/2023 , F16H2200/2035 , H02K7/116 , Y02T10/641 , Y02T10/645 , Y02T10/72 , Y02T10/7275
Abstract: Construction capable of improving the convenience of an electric automobile is achieved by making the drive apparatus for an electric automobile in which a planetary-gear transmission 11 is assembled more compact and simple, and increasing the distance traveled per charge. The planetary-gear transmission 11 comprises a single-pinion first planetary-gear mechanism 12 and a double-pinion second planetary-gear mechanism 13, and reduces power from an electric motor 1a by a desired reduction ratio before transmitting that power to a driven-side rotating shaft 5a. A first braking device 14 switches a ring gear 22 and a second braking device 15 switches a second sun gear 19 between a state of being allowed to rotate and a state of being prevented from rotating with respect to a fixed portion.
Abstract translation: 通过使行星齿轮传动装置11组装的电动汽车的驱动装置更紧凑，简单，并且增加每次充电的行驶距离，可以实现提高电动汽车便利性的结构。 行星齿轮传动装置11包括单小齿轮第一行星齿轮机构12和双小齿轮第二行星齿轮机构13，并且在将动力传递到被驱动机构13之前，将来自电动机1a的功率降低期望的减速比。 侧旋转轴5a。 第一制动装置14切换环形齿轮22，并且第二制动装置15在允许转动的状态和防止相对于固定部旋转的状态之间切换第二太阳齿轮19。
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公开(公告)号：US11852228B2
公开(公告)日：2023-12-26
申请号：US18027276
申请日：2022-03-14
Applicant: NSK LTD.
Inventor： Akihiro Yamamoto , Eiji Inoue
CPC classification number: F16H48/24 , F16H48/08 , F16H2048/202
Abstract: A differential device includes: an input member; a case member arranged coaxially with the input member; a one-way clutch arranged between the input member and the case member and transmitting torque therebetween only when the input member attempts to rotate in a normal rotation direction; a pinion gear supported by the case member to rotate about the axis perpendicular to the center axis of the case member; and a pair of side gears supported coaxially with the input member to rotate relative to the input member and the case member and meshing with the pinion gear.
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Patent Agency Ranking
公开(公告)号：US12278545B2
公开(公告)日：2025-04-15
申请号：US17997977
申请日：2022-01-25
Applicant: NSK LTD.
Inventor： Nagao Dohi , Yuya Daikoku , Eiji Inoue
IPC: H02K7/108 , F16D43/02 , F16D51/12 , F16D65/22 , H02K7/08 , F16D121/14 , F16D125/28 , F16D127/02
Abstract: An output shaft is configured by connecting a first shaft and a second shaft, coaxially arranged with each other, by a reverse input cutoff clutch 20; an end portion on one side in an axial direction of the second shaft located on an opposite side from the first shaft with a gear portion sandwiched in between in the axial direction being rotatably supported with respect to a fixed portion by a bearing device; the reverse input cutoff clutch having a function that, when rotational torque is input to the first shaft, transmits the rotational torque input to the first shaft to the second shaft, and when rotational torque is reversely input to the second shaft, completely cuts off the rotational torque reversely input to the second shaft and does not transmit the rotational torque to the first shaft, or transmits part of the rotational torque to the first shaft and cuts off the remaining portion.
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公开(公告)号：US20140287863A1
公开(公告)日：2014-09-25
申请号：US14354765
申请日：2012-10-24
Applicant: NSK Ltd.
Inventor： Kazutaka Tanaka , Eiji Inoue , Takashi Imanishi , Yasuyuki Matsuda , Daisuke Gunji
CPC classification number: B60K17/12 , B60K1/00 , B60K2001/001 , B60L15/2054 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/486 , F16H3/46 , F16H3/663 , F16H2003/442 , F16H2061/2884 , F16H2061/2892 , F16H2200/0021 , F16H2200/0034 , F16H2200/2005 , F16H2200/2023 , F16H2200/2035 , H02K7/116 , Y02T10/641 , Y02T10/645 , Y02T10/72 , Y02T10/7275
Abstract: Construction capable of improving the convenience of an electric automobile is achieved by making the drive apparatus for an electric automobile in which a planetary-gear transmission 11 is assembled more compact and simple, and increasing the distance traveled per charge. The planetary-gear transmission 11 comprises a single-pinion first planetary-gear mechanism 12 and a double-pinion second planetary-gear mechanism 13, and reduces power from an electric motor 1a by a desired reduction ratio before transmitting that power to a driven-side rotating shaft 5a. A first braking device 14 switches a ring gear 22 and a second braking device 15 switches a second sun gear 19 between a state of being allowed to rotate and a state of being prevented from rotating with respect to a fixed portion.
Abstract translation: 通过使行星齿轮传动装置11组装的电动汽车的驱动装置更紧凑，简单，并且增加每次充电的行驶距离，可以实现提高电动汽车便利性的结构。 行星齿轮传动装置11包括单小齿轮第一行星齿轮机构12和双小齿轮第二行星齿轮机构13，并且在将动力传递到被驱动机构13之前，将来自电动机1a的功率降低期望的减速比。 侧旋转轴5a。 第一制动装置14切换环形齿轮22，并且第二制动装置15在允许转动的状态和防止相对于固定部旋转的状态之间切换第二太阳齿轮19。
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公开(公告)号：US11655862B2
公开(公告)日：2023-05-23
申请号：US17911045
申请日：2021-06-15
Applicant: NSK Ltd.
Inventor： Nagao Dohi , Eiji Inoue
Abstract: The rotation transmission state switching device comprises a clutch device comprising a first rotating member having a first-rotating-member-side engaging portion, a second rotating member having a second-rotating-member-side engaging portion, a third rotating member having a third-rotating-member-side engaging portion; and an engaging element having an engaging-element-side first engaging portion engaging with the first-rotating-member-side engaging portion, an engaging-element-side second engaging portion engaging with the second-rotating-member-side engaging portion, and an engaging-element-side third engaging portion engaging with the third-rotating-member-side engaging portion; and a restriction device configured to switch between allowing and restricting rotation of the first rotating member, allowing or preventing torque transmission between the second rotating member and the third rotating member.
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公开(公告)号：US10167932B2
公开(公告)日：2019-01-01
申请号：US15514285
申请日：2014-09-26
Applicant: NSK LTD.
Inventor： Hiroyasu Yoshioka , Eiji Inoue , Takashi Imanishi , Hirotaka Kishida
Abstract: Projections protruding towards a cam plate and a disc are provided on both axial side surfaces of the retainer at a plurality of positions at which phases of the projections in the circumferential direction are offset from pockets. One axial direction surface of the cam plate and the disc are formed with concave portions at portions facing the respective projections. The concave portions have an axial depth deepest at a center portion thereof in the circumferential direction and becoming shallower towards both end portions thereof.
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公开(公告)号：US10746267B2
公开(公告)日：2020-08-18
申请号：US16345055
申请日：2017-10-24
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA , NSK LTD.
Inventor： Kippei Matsuda , Hideyuki Imai , Kenichiro Tanaka , Kenji Komatsu , Eiji Inoue , Tomohiro Inoue , Daiki Shirota , Masahiro Kita
IPC: F16H15/38
Abstract: A toroidal continuously variable transmission includes a preload spring disposed between a rotary assembly including a first disc and a pressing device, and a driving force transmission shaft, and a thrust bearing disposed between a first member and the preload spring, the first member being one of the rotary assembly and the driving force transmission shaft. In a direction of an axis line, a gap is formed between a second member and the thrust bearing, the second member being the other of the rotary assembly and the driving force transmission shaft. A dimension of the gap in the direction of the axis line is less than a deformation amount of the preload spring in the direction of the axis line, at an elastic limit.
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