公开(公告)号：US11493128B2

公开(公告)日：2022-11-08

申请号：US17632698

申请日：2020-12-11

Applicant: NSK LTD.

Inventor： Hirotaka Kishida ,  Ricardo Rodriguez Lopez ,  Seigou Urakami ,  Shohei Kaneko ,  Akihiro Yamamoto

IPC: F16H63/04 ,  F16H63/30 ,  F16H61/32

Abstract: A cam device having a drive cam and a driven cam; and a friction engagement device having at least one friction plate and at least one separation plate are provided. The friction engagement device is configured so as to be put into a connected state by pressing the friction plate and the separation plate against each other by the driven cam, and a disconnected state. Also provided are a rotation transmission state switching device having a first member and a second member coaxially arranged, and a mode selecting part configured to rotate or displace in the axial direction according to rotation of the drive cam. The rotation transmission state switching device has at least one mode of a free mode and a lock mode of the first member and the second member, and a one-way clutch mode.

公开(公告)号：US11365764B2

公开(公告)日：2022-06-21

申请号：US17262911

申请日：2019-07-22

Applicant: NSK LTD.

Inventor： Daisuke Gunji ,  Hiroyasu Kumagai ,  Naohiro Hitomi ,  Ricardo Rodriguez Lopez

IPC: F16C41/00 ,  B60B27/00 ,  F16C33/72

Abstract: A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction along a rotation axis, which is recessed toward a second side in the axial direction; an outer ring member on an outer peripheral side of the inner ring member; a rolling body between the inner ring member and the outer ring member; a non-contact transmitter using electric field coupling capable of transmitting at least one of an electric power or a signal and including a stationary-side transmission part including a stationary-side electrode and a rotary-side transmission part including a rotary-side electrode facing the stationary-side electrode; and a covering member supported by the first side of the outer ring member in the axial direction, covering the first side of the inner ring member in the axial direction, and fixing the stationary-side transmission part to the first side in the axial direction.

公开(公告)号：US11421736B2

公开(公告)日：2022-08-23

申请号：US17257154

申请日：2019-07-03

Applicant: NSK LTD.

Inventor： Naohiro Hitomi ,  Daisuke Gunji ,  Hiroyasu Kumagai ,  Ricardo Rodriguez Lopez

IPC: F16C41/00 ,  F16C33/72 ,  B60B27/00

Abstract: A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction, the recess being recessed toward a second side in the axial direction; an outer ring member disposed on the outer periphery side of the inner ring member; a rolling body disposed between the inner ring member and the outer ring member and rotatably supporting the inner ring member with respect to the outer ring member; a transmitter capable of transmitting at least one of electric power or a signal, at least a part of the transmitter being accommodated inside the recess of the inner ring member; and a covering member that is supported by the first side of the outer ring member in the axial direction, covers the first side of the inner ring member in the axial direction, and fixes the transmitter.