Box spring assembly
    2.
    发明授权
    Box spring assembly 失效
    箱弹簧总成

    公开(公告)号:US3990121A

    公开(公告)日:1976-11-09

    申请号:US614719

    申请日:1975-09-17

    CPC classification number: A47C23/32

    Abstract: A generally rectangular box spring assembly of the disclosure includes a wire grid supported on a lower frame by center coil springs and by formed wire springs at the edge of the assembly. The formed wire springs provide relatively firm edge support while the coil springs provide softer center support. Each of the formed wire springs includes at least one fishmouth section extending upwardly from an associated frame member for connection to the grid. The formed wire springs preferably include a pair of the fishmouth sections which are interconnected by a connecting portion. The grid may be secured to the connecting portion of the formed wire springs or to a border wire that is itself secured to the fishmouth sections of these springs. The center coil springs are preferably of a conical shape with their smaller ends secured to laterally extending frame slats and with their larger ends clipped to the wire grid. The coil springs supported by each slat are preferably secured thereto by a wire associated with each slat as well as by crossing wires extending between the slats.

    Abstract translation: 本公开的大体上矩形的箱体弹簧组件包括通过中心螺旋弹簧支撑在下部框架上的线栅格,并且在组件的边缘处通过形成的线弹簧。 形成的线弹簧提供相对坚固的边缘支撑,而螺旋弹簧提供较软的中心支撑。 每个形成的线弹簧包括至少一个从关联的框架构件向上延伸以连接到电网的鱼嘴部分。 形成的线弹簧优选地包括通过连接部分互连的一对鱼嘴部分。 栅格可以固定到所形成的线弹簧的连接部分或固定到这些弹簧的鱼嘴部分的边界线。 中心螺旋弹簧优选地是圆锥形的,其较小的端部固定到横向延伸的框架板条上,并且其较大的端部被夹紧到线栅。 由每个板条支撑的螺旋弹簧优选地通过与每个板条相关联的导线以及通过在板条之间延伸的交叉的线固定到其上。

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