Pulley device for continuously variable transmission
US5439419A · kind A · utility
17Cited by
12References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 27, 1994 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Jan 27, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H63/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pulley device includes a moveable conical pulley component which is moveable to a stationary conical pulley component by a servo motor. The servo motor includes a cylinder fixedly held with respect to a shaft portion of the stationary conical pulley component, and a piston fixed to the moveable conical pulley component and slidably engaging the cylinder. The servo motor also includes an auxiliary cylinder reduced in diameter than the cylinder and fixed with respect to the shaft portion, and an auxiliary piston fixed to the moveable conical pulley component. The auxiliary piston is received in the auxiliary cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.