Friction drive device and OMNI-directional vehicle using the same
US8499863B2 · kind B2 · utility
1Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2009 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Jun 28, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a friction drive device comprising first free rollers and second free rollers contacting each other at the outer circumferential surfaces thereof to frictionally transmit power from the second free rollers to the first free rollers, in order to minimize the slippage between the first and second free rollers, minimize the power loss and cause the first free rollers to move as designed, an outer peripheral part of each first free roller defining an outer circumferential surface thereof has a different stiffness from that of an outer peripheral part of each second free roller defining an outer circumferential surface thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.