Patent · US Active

Power transmission mechanism

US11998496B2 · kind B2 · utility

0Cited by

13References

12Claims

0Family size

Assignee

National Institute of Advanced Industrial Science and Technology · JP

Inventor

Hitoshi Maekawa · Yokohama, JP

Key dates

Filing date	Dec 1, 2020
Grant date	Jun 4, 2024
Priority date	—
Expiry date	Jan 19, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2057/085
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

In a power transmission mechanism 20, a line connecting a center shaft 21 of a reference gear member 40 and a first shaft 44 of a first planetary gear member 42 and a line connecting the center shaft 21 of the reference gear member 40 and a second shaft 47 of a second planetary gear member 45 form a specific angle α. Rotation in one direction is prevented when a first carrier member 22 and a second carrier member 32 are relatively rotated in a direction to decrease the specific angle α. Further, a rotation prevention release unit is provided to release a prevention state of the rotation when the first carrier member 22 and the second carrier member 32 are relatively rotated in a direction to increase the specific angle α.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.