Knee walker having enhanced steering and stability
US9227684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Oct 8, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K3/002
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A knee walker includes a steering column rotatably attached to a forward portion of a frame, wherein the steering column includes a steering pulley rotatable about a vertically disposed axis of rotation. Two wheel assemblies are rotatably carried by the frame and have a pulley for rotating each assembly about a vertical axis. The axis of rotation of each wheel assembly is offset aft the steering column axis. A belt links rotation of the steering column to rotation of the wheel assemblies and in combination with the offset causes the belt to extend around at least half a circumference of each pulley for enhancing frictional contact. A shield guards each pulley. Mating alignment disks for aligning each assembly are provided to permit wheel alignment without affecting the belt tension. A third wheel assembly optionally extends from the column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.