Beds – Sofa bed – Extension
Patent
1980-07-23
1986-05-06
Holko, Thomas J.
Beds
Sofa bed
Extension
5 18B, 5 12R, A47C 1706
Patent
active
045862060
ABSTRACT:
A convertible sofa-bed arrangement includes a main mounting frame in the form of a sofa and a mattress supporting frame extensible and retractable relative to the main mounting frame on track members mounted on inner portions of the main mounting frame side arms. The mattress supporting frame has opposite side frame members with front portions thereof rigid and rear portions thereof comprising pivotally interconnected link sections for curving upwardly and retracting into an elongate cavity within the sofa backrest. The mattress supporting frame is driven inwardly and outwardly of the main mounting frame by a cable and motor arrangement utilizing a plurality of gripping arms, pulleys and a winding sheave driven by the motor to draw the mattress supporting frame inwardly to a sofa position and outwardly to a bed position. A switch is connected to the motor for stopping, starting and reversing actions.
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Holko Thomas J.
Trettel Michael F.
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