公开(公告)号：US20240063689A1

公开(公告)日：2024-02-22

申请号：US18501019

申请日：2023-11-02

Applicant: MITSUBA Corporation

Inventor： NAOKI KOJIMA ,  MOTOAKI KOBAYASHI ,  TEPPEI TOKIZAKI ,  Yoshichika KAWASHIMA

IPC: H02K7/116 ,  F16H55/08

CPC classification number: H02K7/116 ,  F16H55/08 ,  F16H1/08

Abstract: A deceleration mechanism is provided with first and second gears, a first tooth part arranged in the first gear and extending spirally in an axial direction of the first gear, an engagement projected part arranged on the first tooth part, second tooth parts arranged on the second gear, and an engagement recessed part arranged between the adjacent second tooth parts. The engagement projected part is formed in an arc shape in a direction orthogonal to the axial direction of the first gear and has a curvature center eccentric from a rotation center of the first gear. The second tooth parts are inclined with respect to the axial direction of the first gear and arranged in a circumferential direction of the second gear. The engagement projected part is formed in an arc-shape in a direction orthogonal to the axial direction of the first gear and engaged with the engagement projected part.

公开(公告)号：US20210021174A1

公开(公告)日：2021-01-21

申请号：US16982052

申请日：2019-04-03

Applicant: MITSUBA Corporation

Inventor： Naoki KOJIMA ,  Motoaki KOBAYASHI ,  Teppei TOKIZAKI ,  Yoshichika KAWASHIMA

IPC: H02K7/116 ,  F16H55/08

Abstract: A deceleration mechanism is provided with first and second gears, a first tooth part arranged in the first gear and extending spirally in an axial direction of the first gear, an engagement projected part arranged on the first tooth part, second tooth parts arranged on the second gear, and an engagement recessed part arranged between the adjacent second tooth parts. The engagement projected part is formed in an arc shape in a direction orthogonal to the axial direction of the first gear and has a curvature center eccentric from a rotation center of the first gear. The second tooth parts are inclined with respect to the axial direction of the first gear and arranged in a circumferential direction of the second gear. The engagement projected part is formed in an arc-shape in a direction orthogonal to the axial direction of the first gear and engaged with the engagement projected part.