Crankshaft assembly for small gasoline motors
US4641546A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1984 |
| Grant date | Feb 10, 1987 |
| Priority date | — |
| Expiry date | Dec 3, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/48
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In the formation of a crankshaft, such as used in small gasoline motors for lawn motors, chain saws and the like, separately produced crank webs, shaft pins and crank pins are used to form an integral crankshaft. Initially the various parts are shaped to the desired dimensions. The crank web can be stamped from a metal strip or it can be a forged sintered part. A shaft pin is inserted in sliding contact with an opening in a crank web and then the two parts are secured together by pressure welding. Another crank web and shaft pin are assembled in a similar manner. The two webs are then interconnected by a crankpin positioned in another opening in each of the webs and a connecting rod is installed on the crankpin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.