Strain wave drive
US12385559B2 · kind B2 · utility
0Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2023 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Dec 14, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2049/003
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A strain wave drive includes an elliptical wave generator shaft rotatable about an axis (X), a flexible flex spline mounted around the wave generator shaft and a ring gear assembly mounted around the flex spline. The ring gear assembly includes an output ring gear having a circular inner periphery and is sandwiched between two earth ring gears each having a circular inner periphery. The flex spline has a first number of radially outwardly extending teeth around its outer periphery and each earth ring gear has the first number of radially inwardly extending teeth to engage with the teeth of the flex spline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.