Differential gear apparatus
US7479089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2006 |
| Grant date | Jan 20, 2009 |
| Priority date | — |
| Expiry date | Mar 24, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/128
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A differential gear apparatus according to the present invention comprises a first sun gear coupled to a first shaft to be rotated in conjunction with the first shaft, a second sun gear coupled to a second shaft to be rotated in conjunction with the second shaft, a first planetary gear meshed with the first sun gear, a second planetary gear rotated with the first planetary gear and meshed with the second sun gear, a carrier supporting the first and second planetary gears, and a housing supporting the second shaft upon rotation, wherein the sun gears and the planetary gears have profile shifted teeth of which addendum modifications are different at the positions in a flank width direction and a nut screwed on the mid way of the second shaft, and a through hole disposed at a position facing the nut are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.