Lifting mechanism for liftable side rails for a lying table such as a bed
US6691345B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Dec 7, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G7/0514
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The pair of support arms connected with the respectively horizontal both sides of the plural side rail members lift and lower the side rail proper consisting of a plurality of side rail members by the pivotal rotation of the support arms along the pivotally rotational loci between the high service position and the low stored position. In this motion, the connection points between the support arms and the side rail members are disposed in such a manner that the connection points of the upper side rail member make pivotally rotational motion relatively delayed in phase, with the connection points of the lowest side rail member as the fulcrums, when the side rail members are moved to descend by the pivotally rotational motion of the support arms. The side rail proper consisting of vertically disposed plural side rail members becomes smaller in the vertical height at the low stored position than at the high service position, the distance between the bottom of the side rail and the floor surface at the stored position can be kept large while keeping the bed deck height low and keeping vertical height at the service position sufficiently high.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.