Steering system with parallelogram linkage for heavy mobile medical equipment
US8448729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2009 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Feb 4, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D7/09
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In one embodiment of the invention, a steering system for mobile medical equipment includes left and right steerable wheel assemblies respectively with left and right steerable wheels. A left parallelogram linkage couples to the left steerable wheel assembly to transfer a left wheel angle to the left steerable wheel assembly. A right parallelogram linkage couples to the right steerable wheel assembly to transfer a right wheel angle to the right steerable wheel assembly. A steering function generator couples to the left parallelogram linkage and the right parallelogram linkage. The steering function generator generates the left wheel angle of the left steerable wheel and the right wheel angle of the right steerable wheel. A steering tiller couples to the steering function generator and receives an input steering angle from an operator to generate the left and right wheel angles to control the direction of the mobile medical equipment around flooring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.