Support frame with articulating structures
US7421748B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2005 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | May 6, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G7/018
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention has a frame, two articulating structures, a drag link and a linear drive assembly. Each articulating structure has a rigid support, a serpentine support and a caster support. The rigid supports are pivotally connected to the frame and to the caster supports. The serpentine supports are pivotally connected to the frame, the rigid support and the caster support. The drag link makes the first and second articulating structures cooperate. The linear drive assembly is connected to the rigid support of one articulating structure and to the drag link. The linear drive assembly causes the bed to rise by acting in two directions, one to directly push the drag link in a first direction and the second to redirect the linear drive assembly force to indirectly push the drag link in the first direction by rotating the first rigid structure away from the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.