Beds – Sofa bed – Reverting back
Patent
1985-11-13
1987-04-21
Smith, Gary L.
Beds
Sofa bed
Reverting back
5 62, 5 66, 5 90, A61G 706
Patent
active
046584501
ABSTRACT:
This disclosure relates to a multi-position bed such as is used in hospitals and for persons who by reason of physical disability of age are unable to turn or move themselves in bed. As shown in FIG. 4 the bed comprises a base frame 1 supported on casters and having a pair of pivoted angled lifting arms 2. One of the pair of lifting arms is pivoted inturn to an interlink pivoted to a pivot bracket 4. The other lifting arm 2 is pivoted directly to a second pivot. The pivot brackets 4 and 5 act as the pivot supports for the center section 6 of a mattress platform which also comprises two side sections 7. The side sections 7 are not hinged directly to the center section but simply have interengaging features in the form of side frame registers 11. When the bed is used as a turning bed the interengaging features 11 disengage. The side sections 7 are carried by pairs of links 8 and 9 which join the pivot brackets 4 to the side sections 7 at points underneath the side sections. These side sections are also connected by side frame pivot arms 13 to an end pivot frame 12, at each end of the bed, the pivot frame 12 being rigidly connected to the center bed section 6. The movement of the bottom links 8 is restricted, in a downward direction, by bottom link stops 10. The links 8,9 may be disconnected and the side sections 7 connected rigidly to the center section 6 so that the mattress platform can be caused to tilt bodily in a lateral sense.
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patent: 4375706 (1983-03-01), Finnhult
patent: 4425673 (1984-01-01), Werner
Egerton Hospital Equipment Limited
Smith Gary L.
Trettel Michael F.
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