Roll-and-press friction-driving harmonic drive gear reducer
US10801600B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 24, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2049/003
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A roll-and-press friction-driving harmonic drive gear reducer includes: a wave generator having an elliptical external contour; a flexible spline having an output end and an open annular wall connected to the output end, the open annular wall having an external circumferential surface that includes an external roll-and-press area in an annular form, the external roll-and-press area including an annular section of external teeth adjacent to an end edge and a circumferential external curved surface adjacent to the annular external teeth; and a circular spline, which has an end that is recessed to form an accommodation hole that is inwardly extended, the accommodation hole having an internal circumferential surface that includes an internal roll-and-press area, the internal roll-and-press area including an annular section of internal teeth adjacent to an end edge and a circumferential internal curved surface adjacent to the set of internal teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.