| 摘要 |
A convertible furniture unit having upper and lower platforms which are mounted for conjoint movement. In different embodiments the upper platform comprises a bed or table and the lower platform can be structures such as a desk, a credenza and desk, and the like. Releasable locks are provided for holding the upper platform in a prone position while the lower platform is lowered. When the locks are released a torsion bar arrangement automatically applies a yieldable force urging the upper platform toward the upright position as the lower platform is raised while maintaining a horizontal attitude. Terminal movement of the upper platform is cushioned by an air pocket created in the recess of an upright housing. The upper and lower platforms are held in a upright mode by over center positioning of the pivot points which permits the upper platform to be manually pulled downwardly to convert the unit to another mode.
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