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11. 发明授权

US5343639A Shoe with an improved midsole 失效
标题翻译：鞋子与改进的中底
公开(公告)号：US5343639A
公开(公告)日：1994-09-06
申请号：US136992
申请日：1993-10-18
申请人： Bruce J. Kilgore , Thomas McMahon , John C. Tawney , Gordon Valiant
发明人： Bruce J. Kilgore , Thomas McMahon , John C. Tawney , Gordon Valiant
IPC分类号： A43B13/18 , A43B13/20 , A43B21/28
CPC分类号： A43B13/206 , A43B13/183 , A43B13/189 , A43B13/20
摘要： The invention is directed to a midsole for a shoe including one or more foam columns disposed between an upper and a lower plate. One or more elastomeric foam elements are disposed between the upper and lower plates. The foam elements are made of a material such as microcellular polyurethane-elastomer based on a polyester-alcohol and naphthalene-disocyanate (NDI). In one embodiment, the foam elements have the shape of hollow cylindrical columns, and may include grooves formed on the exterior surface. One or more elastic rings are disposed about the columns and are removably disposable in the grooves, allowing the stiffness of the columns to be adjusted. In a further embodiment, inflatable gas bladders are disposed in the hollow regions. The heights of the gas bladders may be less than the heights of the columns such that when the midsole is compressed, the wearer experiences a first stiffness corresponding to compression of the columns alone, and a second stiffness corresponding to compression of both the columns and the bladders. Alternatively, the bladders may be inflated so as to cause the columns to be stretched, even when no load is applied. Since the level of inflation of the bladders may be adjusted, the overall stiffness of the midsole may be tuned to the individual requirements of the wearer.
摘要翻译：本发明涉及一种用于鞋的鞋底夹层，其包括设置在上板和下板之间的一个或多个泡沫塔。一个或多个弹性体泡沫元件设置在上板和下板之间。泡沫元件由诸如基于聚酯 - 醇和萘 - 二异氰酸酯（NDI）的微孔聚氨酯弹性体的材料制成。在一个实施例中，泡沫元件具有中空圆柱形的形状，并且可以包括形成在外表面上的凹槽。一个或多个弹性环设置在所述列周围，并且可移除地一次性地在所述凹槽中，允许调节所述列的刚度。在另一个实施例中，可充气气囊设置在中空区域中。气囊的高度可以小于柱的高度，使得当中底被压缩时，穿着者经历对应于单独的柱的压缩的第一刚度，并且对应于两列的压缩的第二刚度和气囊或者，即使没有施加负载，也可以对气囊进行充气，以使柱被拉伸。由于可以调节气囊的膨胀水平，所以可以将中底的整体刚度调整到佩戴者的个体要求。

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