公开(公告)号：US20230272846A1

公开(公告)日：2023-08-31

申请号：US18027276

申请日：2022-03-14

Applicant: NSK LTD.

Inventor： Akihiro YAMAMOTO ,  Eiji INOUE

IPC: F16H48/22 ,  F16H48/08

CPC classification number: F16H48/22 ,  F16H48/08

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.

公开(公告)号：US20230179063A1

公开(公告)日：2023-06-08

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

CPC classification number: H02K7/108 ,  F16D43/02 ,  F16D51/12 ,  F16D65/22 ,  H02K7/083 ,  F16D2121/14

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.

公开(公告)号：US20170299024A1

公开(公告)日：2017-10-19

申请号：US15514285

申请日：2014-09-26

Applicant: NSK LTD.

Inventor： Hiroyasu YOSHIOKA ,  Eiji INOUE ,  Takashi IMANISHI ,  Hirotaka KISHIDA

IPC: F16H15/50 ,  F16H63/30 ,  F16H57/08 ,  F16H55/56 ,  F16H63/06 ,  F16H25/18

CPC classification number: F16H15/50 ,  F16H13/08 ,  F16H25/186 ,  F16H55/56 ,  F16H57/08 ,  F16H63/065 ,  F16H63/3023 ,  F16H2057/087

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.

公开(公告)号：US20230100550A1

公开(公告)日：2023-03-30

申请号：US17911045

申请日：2021-06-15

Applicant: NSK Ltd.

Inventor： Nagao DOHI ,  Eiji INOUE

IPC: F16D41/10 ,  F16D13/16

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.

公开(公告)号：US20190277375A1

公开(公告)日：2019-09-12

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.