Coordinative lifting control method of bottom sections for lying furniture such as a bed
US6957458B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2003 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | May 22, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of controlling the coordinative lifting of bottom sections of lying furniture such as a bed that has a back bottom section for lifting the back portion of a lying person and a knee bottom section for lifting his/her knee portion, in which the respective bottom sections can be lifted by the lifting mechanisms respectively provided for them, characterized in that a pressure detecting means is interposed between the back bottom section and the back of the lying person, and when the back bottom section is pivotally rotated and lifted to be kept inclined from a flat state where all the bottom sections are kept down to lie flat, the knee bottom section is also adequately lifted, wherein the knee bottom section is controlled to decline when the pressure applied from the back bottom section to the back of the lying person and detected by said pressure detecting means has increased to a preset value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.