Wheel assembly
US3994355A · kind A · utility
Inventor
Key dates
| Filing date | May 19, 1975 |
| Grant date | Nov 30, 1976 |
| Priority date | — |
| Expiry date | May 19, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C19/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved wheel assembly includes a pair of contact bearings which are displaced from the vertical center line of the wheel for reducing frictional forces and the required torque in rotating the wheel. The bearings contact the inner surface of a drum having a pair of side plates, one of which has a central aperture. A weight bearing sleeve is located through the aperture and includes sleeve extension arms which are affixed to the contact bearings. A rotatable axle is located within the sleeve and extends through the drum so that the axle may be affixed to the other side plate of the drum. The drum thus rotates with the axle, and the vehicle weight is transferred from the sleeve to the drum by the two contact bearings which rotate in place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.