Continuously variable traction roller transmission
US4893517A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1989 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Feb 24, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2015/383
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is a continuously variable traction roller transmission of a double cavity type, which comprises a casing; a partition wall installed in the casing to define front and rear cavities in the same; a first shaft extending through the front and rear cavities; first and second motion transmitting traction mechanisms respectively installed in the front and rear cavities and disposed about the first shaft, each mechanism being operatively connected to the first shaft and including opposite paired input and output toroidal discs and paired traction rollers disposed between and in engagement with the paired input and output toroidal discs; a second shaft extending through only the rear cavity; a first device for operatively connecting the second shaft to both of the first and second motion transmitting traction mechanisms; a second device for biasing one of the paired input and output discs of each motion transmitting traction mechanism toward the other in accordance with a magnitude of torque applied to the one disc; a third device for constantly biasing one of the paired input and output discs of each motion transmitting traction mechanism toward the other; and a fourth d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.