Lifting platform
US8991788B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Jan 20, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B27/36
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a three-armed pivot system, the two upper pivot arms having a V shape and representing part of a parallelogram, and the lower arm being a single, centrally situated pivot arm which represents the second part of the parallelogram. The active cylinder is assisted by a gas spring, and a personal protection safety net covers the gap between the vehicle and the platform, which may optionally be horizontally displaced. The active cylinder has a lift sensor which is connected to the controller, and the offset positioning of the active cylinder with respect to the bracket and of the fastening point to the pivot arm or support produces an improved lifting force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.