Beds – Camp beds – Lazy-tong supports
Patent
1980-06-19
1983-05-24
Grosz, Alexander
Beds
Camp beds
Lazy-tong supports
5182, 108 67, 297106, A47C 1764, A47C 1914
Patent
active
043843794
ABSTRACT:
An expansion bed which is easily expansible and contractible along its longitudinal direction. The bed comprises a frame having at least two support links on each side which connect front and rear upstanding frame plates. Each of the pairs of support links comprises a support leg which adjustably connects the front and rear frame plates. A plurality of arms are connected to the upper end of the support links and a plurality of mounting plates are positioned upon the support arms for receiving a mattress or other bed surface. The frame plates can be provided with rollers for facilitating movement of the bed and a stopper can be provided for preventing movement of the rollers. If desired, the mounting plates can be placed upon rather than connected to the arms and can be formed so that the widths of adjacent pairs of the plates increase in the longitudinal direction of the bed. Additionally, a cabinet can be provided for placement atop the bed, when in its contracted state, to receive the cushions which do not fold together with the bed frames. Alternately, successive support legs at one end of the frame can increase in length as viewed along the longitudinal direction of the frame. The support legs and arms can be attached as independent units and the bottom portions of support legs at the middle of the frame can be detachable in order that one portion of the frame can be superimposed upon the other portion of the frame.
REFERENCES:
patent: 540041 (1895-05-01), Blomberg
patent: 740002 (1903-09-01), Freuler
patent: 862346 (1907-08-01), Pihlblad et al.
patent: 1097100 (1914-05-01), Kallio
patent: 2127025 (1938-08-01), Graham
patent: 3176633 (1965-04-01), Balfour
Grosz Alexander
Yamada Co., Ltd.
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