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    • 47. 发明申请
    • METHOD AND SYSTEM FOR FORMING STRINGS OF POCKETED COIL SPRINGS
    • 用于形成缠绕线圈弹簧的方法和系统
    • WO01098151A1
    • 2001-12-27
    • PCT/US2000/028230
    • 2000-10-12
    • A47C27/07B65B9/073B68G9/00B65B63/02
    • B65B9/073B68G9/00
    • A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintained in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of packeted coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24, 26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).
    • 通过在折叠的,优选可热焊接的织物(16)的上层和下层之间插入压缩弹簧来形成袋状螺旋弹簧(14)的绳(12)。 弹簧保持在压缩构型中,而纵向接缝(54)将热焊接织物(16)的自由边缘连接在一起。 随后,允许压缩弹簧(14)松弛成扩张构型,之后在相邻弹簧(14)之间的织物(16)中形成横向接缝(80),从而将每个弹簧(14)封装在织物口袋 (86)。 打包螺旋弹簧(14)的线(12)有利地形成,而不需要在插入织物(16)的层(24,26)之后重新定向弹簧(14),从而避免相关的缺点和并发症 转动或重新定向袋装螺旋弹簧(14)。