Snowmobile transmission jackshaft
US5607026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Apr 21, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M2027/023
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a snowmobile drive train the variable ratio belt drive is not directly coupled to the engine crankshaft as in the prior art, but rather the driving pulley of the variable ratio belt drive is carried on one end of a jackshaft and the engine power is applied to the opposite end of the jackshaft. The jackshaft is supported in a fixed bearing in the vehicle frame, this bearing being immediately adjacent to the driving pulley so that the influence on the belt drive of vibrations generated by the engine is vastly diminished. Therefore the engine mounts can be arranged to fully absorb vibrations of the engine. Previously, when the driving pulley was directly coupled to the engine crankshaft it was necessary to include a tie restraint to limit movements of the engine housing in the direction of separation between the axes of the driving and driven pulleys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.