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    • 6. 发明申请
    • Method of Making A Spring Core For A Bedding or Seating Product
    • 制作寝具产品弹簧芯的方法
    • US20140366376A1
    • 2014-12-18
    • US14475841
    • 2014-09-03
    • L&P Property Management Company
    • Guido EigenmannNiels S. MossbeckDarrell A. Richmond
    • B21F27/16
    • B21F27/16A47C23/04A47C27/065Y10T29/49609Y10T29/49613
    • Disclosed herein is a method of making a spring core (12) for a bedding or seating product (10). The spring core (12) has coil springs (26) having unknotted end turns (72, 74) made from high tensile strength wire. In each embodiment, the end turns (72, 74) of the coil springs (26) are generally U-shaped having one arcuate leg (76) longer than the other (78), the legs (76, 78) being joined by a connector (80) having an arcuate bump (81) therein. The springs (26) are oriented in the spring core (12) such that a long leg (76) of one end turn (72) abuts a short leg (78) of the adjacent end turn (72) prior to being wrapped in helical lacing wire (32). The high tensile wire enables the coil springs (26) to be manufactured using less wire than heretofore possible.
    • 本文公开了一种制造用于床上用品或座椅产品(10)的弹簧芯(12)的方法。 弹簧芯(12)具有螺旋弹簧(26),其具有由高抗拉强度线制成的未结合的端匝(72,74)。 在每个实施例中,螺旋弹簧(26)的端部匝(72,74)大致为U形,其具有比另一个更长的一个弓形腿(76)(78),腿部(76,78)通过 连接器(80)在其中具有弧形凸起(81)。 弹簧(26)被定向在弹簧芯(12)中,使得一个端部转弯(72)的长支脚(76)在被螺旋缠绕之前邻接相邻端部转弯(72)的短腿(78) 系带线(32)。 高强度线使得能够使用比以前更少的导线来制造螺旋弹簧(26)。