公开(公告)号：US20250035201A1

公开(公告)日：2025-01-30

申请号：US18775308

申请日：2024-07-17

Applicant: NOK CORPORATION

Inventor： Naoya IWATA

IPC: F16H55/18 ,  F16F15/124

Abstract: A gear structure includes a gear member including an outer circumferential surface provided with a plurality of gear teeth, and a band member surrounding the gear member and pressing the plurality of gear teeth inwardly.

公开(公告)号：US20250035200A1

公开(公告)日：2025-01-30

申请号：US18776687

申请日：2024-07-18

Applicant: NOK CORPORATION

Inventor： Naoya IWATA

IPC: F16H55/14 ,  F16H57/00

Abstract: A gear structure includes a gear member including: an outer circumferential surface provided with a plurality of gear teeth; and an inner circumferential surface disposed in an inward direction from the outer circumferential surface; an annular mass body disposed in the inward direction from the inner circumferential surface; and an elastic body interposed between the gear member and the mass body.

公开(公告)号：US20230144479A1

公开(公告)日：2023-05-11

申请号：US17918457

申请日：2021-04-27

Applicant: NOK CORPORATION

Inventor： Yutaka ORIOKU ,  Naoya IWATA

IPC: F16F15/04

CPC classification number: F16F15/04

Abstract: Two or more target points different in amplitude in a natural mode, which exist in a housing of an object to be damped such as an engine, a gearbox, motors, or the like are located. Among these target points, an arm is fixed at a position relatively small in amplitude, and a vibration absorber provided at the free end of the arm is pressed against a position (relatively large in amplitude. When vibrations occur in the object, the vibration absorber holds the target point relatively large in amplitude while the arm is following the vibrations of the target.