Retractable ramp system for a mobility vehicle
US7527467B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2004 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Jan 7, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/134
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A retractable ramp system for a mobility vehicle. A ramp platform is driven by a reversible motor, associated drive pulley, and drive belt affixed to a ramp carriage assembly. A spring-loaded mechanical release assembly is used to engage the drive pulley to the motor and to disengage the drive pulley from the motor. A manual control assembly is used for manual deployment of the ramp when the drive pulley is disengaged from the motor. The ramp flap provides a transition between the ramp platform and a mobility vehicle. The ramp flap is supported by wheels which translate along the ramp platform. Linear bearing blocks attach to pivot arms of the carriage assembly, which are in turn pivotably attached to the ramp platfom. Linear bearing blocks translate the ramp platform along guide shafts during deployment and stowage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.