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    • 9. 发明授权
    • Sofa bed spring improvements
    • 沙发床弹簧改进
    • US4584727A
    • 1986-04-29
    • US623089
    • 1984-06-21
    • Bernard ReissIrl E. Ward
    • Bernard ReissIrl E. Ward
    • A47C17/22A47C17/23A47C17/04A47C19/00
    • A47C17/23A47C17/225
    • A sofa bed has a stationary framework and a foldable bed frame connected to and foldable into the framework, the foldable frame having an outer section connected to and pivotal relative to a body section, the outer section overlying the body section in the folded position of the frame to form a seat. The outer section has a plurality of individual seat support elements extending thereacross transversely to the sofa back. The individual elements are spaced apart in a direction parallel to that axis, and each of the individual elements is downwardly deflectable independently of the other when a person sits on said seat, and is arched so that a concavity is formed in the sofa form for the sofa cushions, and as that the mattress is compressed. A spring edge is mounted on and extends above a front rail of the stationary framework to form the front supporting edge of the seat.
    • 沙发床具有固定框架和连接到框架上并可折叠到框架中的可折叠床架,所述可折叠框架具有连接到主体部分并且可相对于主体部分枢转的外部部分,所述外部部分覆盖所述主体部分的折叠位置 框架形成一个座位。 外部部分具有多个单独的座椅支撑元件,其横向于沙发背面延伸。 各个元件在平行于该轴线的方向上间隔开,并且当人坐在所述座椅上时,每个单独的元件可以独立于另一个独立地向下偏转,并且是拱形的,使得以沙发形式形成凹部,用于 沙发垫,以及床垫被压缩。 弹簧边缘安装在固定框架的前导轨上并在其上方延伸以形成座椅的前支撑边缘。