Pinion shaft support structure for planetary gear
US8905894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2010 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jul 9, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/0479
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
To allow attachment of pinion shafts in their phased states only in simple steps which do not require a crimping step and a special device. A pinion shaft support structure for a planetary gear includes pinion gears, pinion shafts for pivotally supporting the pinion gears, and a carrier having a plurality of shaft support holes for rotatably supporting the pinion shafts, the pinion shafts being supported by the shaft support holes. The pinion shaft support structure includes stepped portions formed on end surfaces of the pinion shafts and a fall-out prevention washer which is mounted on the carrier to be capable of locking the stepped portions. An outer circumferential rim of the fall-out prevention washer mounted on the carrier faces the stepped portions of the respective pinion shafts inserted into the plurality of respective shaft support holes and is capable of locking the stepped portions, and the pinion shafts are thereby positioned (phased) in their rotational directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.