Starter motor pinion assembly
US4785679A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Sep 3, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/131
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pinion assembly (30) for an electrical starter motor (20) includes a metallic pinion nut (4) threadedly received on an output shaft (22) of motor (20). A first bushing (36) includes a radially extending annular flange (40) which is fixed to and covers nut (4) and a cylindrical axially extending shell (42). A metallic drive pinion (32) is supported on shell (42) and is electrically insulated from shaft (20) by shell (42) and from nut (4) by annular flange (40). However, slip clutch (14) is located between first bushing (36) and drive pinion (32) to transmit torque therebetween. Finally, cylindrical member (62) retains drive pinion (32) on bushing (36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.