Starter with planetary gear type speed reducing mechanism
US4635489A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Sep 24, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/137
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A starter for an internal combustion engine comprises a starter motor. A drive shaft extends in coaxial relation to an armature shaft of the starter motor and has a projection extending radially outwardly from an axial end of the drive shaft adjacent the armature shaft. A pinion is in spline engagement with an outer periphery of the drive shaft and in meshing engagement with a ring gear of the engine. The rotation of the armature shaft is reduced in speed and transmitted to the drive shaft through a planetary gear type speed reducing mechanism. A center bracket comprises a cylindrical portion rotatably supported by one of the drive shaft and the armature shaft, and a disc-shaped portion extending radially outwardly from an axial end of the cylindrical portion. A shock absorber unit comprises a rotary disc and a spring disposed around the cylindrical portion of the center bracket. The rotary disc engages an internal gear of the planetary gear type speed reducing mechanism so as not to be rotatable, but to be axially movable with respect to the internal gear. The spring urges the rotary disc against the disc-shaped portion of the center bracket. The rotary disc and spring are retaine…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.