Sofa bed with mattress longitudinally compressed for storage and method
US4378609A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1981 |
| Grant date | Apr 5, 1983 |
| Priority date | — |
| Expiry date | Apr 14, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C17/225
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present sofa bed includes a mattress supporting bed frame which is operable to longitudinally compress a portion of the mattress when the bed frame is moved to a folded and storage seat position. The bed frame or telescoping section which permits longitudinal expansion of the mattress when the bed frame is moved to an unfolded and extended bed position. A simple and lightweight bed frame operating and support linkage operates the telescoping bed section when moved between the stored and extended bed positions. The longitudinal compression of the mattress permits the mattress to be stored in a relatively narrow space and to be expanded to a full length bed dimension when moved to the unfolded and extended bed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.