Wheel, and friction drive device and omni-directional vehicle using the same
US8827375B2 · kind B2 · utility
2Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2009 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Apr 10, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a wheel for use in an omni-directional vehicle, gravel and other foreign matters are prevented from being trapped between free rollers forming the wheel, and traveling vibrations and noises are minimized at the same time. The wheel includes an annular member and a plurality of free rollers each rotatably supported by the annular member around a corresponding tangential line of the annular member, and a gap member is placed between each adjacent pair of the free rollers to fill a gap defined between the free rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.