Quick release coupling for head section of a hospital bed
US5329657A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1992 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Oct 21, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18792
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hospital bed includes an articulatable patient support with a fowler portion movable between horizontal and inclined positions relative to a frame of the bed. A reversible electric drive motor is supported on the frame of the bed and, through a reduction gearing arrangement and a releasible coupling mechanism, can rotatably drive a threaded shaft. A nut engages and is held against rotation with the shaft, and a linkage arrangement couples the nut to the fowler portion to effect reciprocal movement of the fowler portion in response to reciprocal movement of the nut along the shaft. A manual release is provided on the fowler portion and, when actuated, disengages the releasible coupling mechanism so that the threaded shaft is free to rotate independently of the motor and gearing arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.