Drive device
US11708885B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2021 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Sep 30, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2055/0893
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drive device includes: a motor; and a power transmission device that transmits power of the motor to a wheel. Further, in the power transmission device has a meshing portion in which a meshing tooth that is formed on an input-side rotation member and a meshing tooth that is formed on an output-side rotation member mesh with each other on a power transmission path between the motor and the wheel, the meshing tooth has a driving-side teeth surface that makes contact for transmission of power from the motor to the wheel and a non-driving-side teeth surface that makes contact for transmission of power from the wheel to the motor, and in the meshing tooth, a tooth root of the driving-side teeth surface has a higher breaking strength than a tooth root of the non-driving-side teeth surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.