Beds – Sofa bed – Reverting back
Patent
1997-12-16
1999-06-22
Trettel, Michael F.
Beds
Sofa bed
Reverting back
5 41, 5 52, 5 181, A47C 1717
Patent
active
059137703
ABSTRACT:
A folding sofa-bed frame includes a horizontal base frame section, a planar backrest frame section, a planar connecting frame section, a horizontal foot frame section, and a variable-length telescopic unit. The backrest frame section is disposed above the base frame section and has a rear end mounted pivotally on the base frame section. The connecting frame section has a rear end connected pivotally to a front end of the backrest frame section. The foot frame section has a rear end connected pivotally to a front end of the connecting frame section. The telescopic unit has one end mounted on a front end of the foot frame section, and an opposite end coupled to the base frame section. The sofa-bed frame can be actuated from an extended bed frame position, where the telescopic unit has a maximum length and the backrest frame section, the connecting frame section and the foot frame section are arranged in a horizontal plane, to a sofa forming position, where the telescopic unit has a minimum length, the backrest frame section and the connecting frame section are arranged side-by-side and extend generally uprightly relative to the base frame section, and the foot frame section extends above the base frame section.
REFERENCES:
patent: 1104487 (1914-07-01), Fischer
patent: 1903224 (1933-03-01), Oehrl
patent: 4608722 (1986-09-01), Zorzetto
patent: 4939802 (1990-07-01), Lafer
patent: 5519902 (1996-05-01), Meade
Shin Yen Enterprise Co. Ltd.
Trettel Michael F.
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