CN101854824B - 三重密度的凝胶足跟杯 - Google Patents

三重密度的凝胶足跟杯 Download PDF

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CN101854824B
CN101854824B CN200980100726XA CN200980100726A CN101854824B CN 101854824 B CN101854824 B CN 101854824B CN 200980100726X A CN200980100726X A CN 200980100726XA CN 200980100726 A CN200980100726 A CN 200980100726A CN 101854824 B CN101854824 B CN 101854824B
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heel
cups
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CN101854824A (zh
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D·B·格朗格
J·马丁尼斯
D·M·萨拉克
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Spenco Medical Corp
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/16—Footwear with health or hygienic arrangements with foot-supporting parts with elevated heel parts inside
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0009—Footwear characterised by the material made at least partially of alveolar or honeycomb material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A43B17/026—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a non-compressible fluid, e.g. gel, water
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/16—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined with heel or toe caps
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone

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Abstract

公开了一种三重密度的足跟杯。该足跟杯包括基本上呈足跟形状的基体，其具有从一体壁的足跟部延伸到前边缘的长度，在使用时该前边缘适于垫在人体脚部的拱形区域的一部分之下。所述呈足跟形状的基体包括结构凝胶层，该凝胶层具有脚接收表面和鞋侧表面。脚接收表面的大致平坦部分在使用时邻近穿用者脚底，而一体壁适于在使用时邻近穿用者足跟后部和穿用者足跟侧部，所述一体壁具有最大高度的顶点，所述壁的高度从所述顶点向所述前边缘逐渐降低。鞋侧表面限定了在所述结构凝胶中形成的适于接收加强部件的槽，加强部件固定到所述槽内的所述结构凝胶上并由密度比所述结构凝胶大的材料制成。这对足跟杯和脚部提供了支撑。足跟垫固定在由足跟杯底部表面上的结构凝胶限定的足跟垫区域中的所述结构凝胶上。在优选实施方式中，足跟垫利用蜂窝技术来提供更好的缓冲和能量归还。

Description

三重密度的凝胶足跟杯
相关申请的交叉引用
本申请要求2008年1月16日提交的美国临时专利申请61/021535的权益。 
关于联邦资助研发的陈述
不适用。 
技术领域
本发明涉及穿在鞋内的足跟支撑物领域。 
附图说明
图1是优选实施方式的俯视平面图。 
图2是优选实施方式的仰视平面图。 
图3是优选实施方式的立体图。 
图4是优选实施方式的分解图。 
图5是优选实施方式沿图2中的5-5截取的截面图。 
具体实施方式
公开的三重密度的足跟杯或支撑物(“TD足跟杯”)有利地吸收冲击并对脚的足跟区域提供支撑。根据俯视图，TD足跟杯从后足跟壁延伸至前边缘。在使用中，后足跟壁邻近由跟骨(calcaneous)或腓侧跗骨形成的穿用者足跟的后面。前边缘邻近基本位于穿用者脚部拱形区域内或附近的穿用者脚底。应当理解，穿用者的脚可由袜类覆盖，且当本文中涉及脚时，除非特别说明，否则其意在包括穿着长袜、短袜等的脚。 
TD足跟杯包括基本平坦的区域，该区域在使用中接触穿用者的脚底。壁部分与该平坦区域形成一体并从该平坦区域向上延伸，该壁部分在足跟杯的后部中心具有最大高度。从足跟杯后部中心的壁最大高度点起，壁的高度逐渐降低至或几乎达到足跟杯的前边缘处的平坦区域的高度。足跟杯的内部适于接收穿用者的脚并在使用时与其邻近， 而足跟杯的外部适于邻近使用者的鞋。内部包括凝胶材料。外部包括凝胶材料、附接于所述凝胶材料上的加强部件、插入凝胶内一体形成且在凝胶底面上的凹入处的足跟垫。 
凝胶材料优选包括热塑性弹性体凝胶，又称为TPE凝胶。在本发明的使用中，TPE凝胶因其热塑性性质带来的更大弹性而优于聚氨酯(PU)凝胶。TPE凝胶是所需要的，因为在模制工艺中它能在20-30秒内成型(set up)，而其它材料，例如PU凝胶则需要数分钟。如果一种材料需要数分钟才能成型，那么它可能不适于以高效方式注模，而会需要将足跟杯的不同部件分开模制，然后再组装。用于凝胶的材料优选是结实(strong)的，以允许足跟杯制成相对薄，但仍保持结实。薄足跟杯是优选的以允许为鞋中足腔空间较小设计(如时装鞋)的鞋中提供更大的脚部空间。然而，足跟杯也适于在具有较大的足腔的鞋(如运动鞋)中使用。 
存在多种市售的TPE凝胶，其中两种称为为热塑性聚氨酯弹性体(“TPU”)凝胶和热塑性橡胶(“TPR”)凝胶。如果颜色特性非常重要，则可选择TPU凝胶，因其能提供比TPR凝胶更好的颜色特性。此外，TPU比TPR凝胶更耐用且更容易模制，所以如果需要将这些特性赋予成品或制造鞋内底的工艺，那么TPU用于制造本发明是理想的。到现在为止TPU凝胶的缺点是比其它TPE凝胶(如TPR凝胶)的成本高。TPR也可用于凝胶并具有必需的性能。可使用其它凝胶，但优选的是使用的凝胶具有以下段落中所描述的特性。 
优选的凝胶具有低压缩变形。压缩变形定义为在特定温度下以固定量百分比(％)被压缩特定时间量并经过恢复期后，样本呈现的永久变形量。在优选实施方式中，凝胶层的压缩变形是＜11±2％。为了选择用于本发明的合适凝胶，可根据ASTM国际提出的ASTM F1614-95“运动鞋袜材料系统冲击衰减性质的标准检测方法”使用测量压缩变形或冲击的检测装置来检测凝胶。例如，来自Exeter研究的CompITS或计算机冲击检测系统是依据ASTM F1614-95检测冲击的标准机器。 
拉伸和撕裂强度：优选实施方式的凝胶层具有约1.2MPa和12kN/m的拉伸强度和撕裂强度。 
断裂延伸率：优选实施方式的凝胶层具有900％的断裂延伸率。 
肖氏/Asker硬度检测提供硬度的测量。在最优选实施方式中，凝胶层测得为24±3Asker C。 
肖氏/Asker硬度检测提供硬度的测量。在最优选实施方式中，凝胶层测得为24±3Asker C。 
肖氏/Asker硬度能用市售的硬度计来测量。被检测的材料放置于硬平面上。Asker检测计装配有“C”刻度并且是适合的压头类型，通常是半球类型。Asker检测计放置在待检测的材料上且无附加压力。指针偏转以提供读数。 
加强部件的材料具有比凝胶更大的刚性密度(rigid density)，且加强部件被附接到足跟杯鞋侧表面的凝胶层上。在优选实施方式中，加强部件延伸横过足跟直立壁的背部接近该壁的顶部。然后加强部件向下朝向足跟杯的基部弯曲并且然后沿着足跟杯的侧面延伸并向前延伸到足跟杯的前边缘。 
加强部件可由具有与聚丙烯(PP)、聚氯乙烯(PVC)、热塑性硫化胶(TPV)或热塑性橡胶(TPR)相似特性的任何材料制成。优选地，加强部件由TPR制成。优选地，加强部件的硬度是约70±3Asker C。 
在优选实施方式中，足跟垫形状设计为具有设计成与足跟的肥区域对应的宽基部，且逐渐变细成与由足跟杯的凝胶材料限定的足跟开口对应的U型形状。所述的形状能有效地对足跟进行支撑和缓冲。 
在优选实施方式中，足跟垫的压缩变形为＜11±2％。为了选择用于本发明的合适的凝胶，可根据ASTM国际提出的ASTM F1614-95“运动鞋袜材料系统冲击衰减性质的标准检测方法”使用测量压缩变形或冲击的检测装置来检测凝胶。例如，来自Exeter研究的CompITS或计算机冲击检测系统是依据ASTM F1614-95检测冲击的标准机器。 
拉伸和撕裂强度：优选实施方式的足跟垫具有约1.0MPa和10.6kN/m的拉伸强度和撕裂强度。 
断裂延伸率：优选实施方式的足跟垫具有950％的断裂延伸率。 
肖氏/Asker硬度检测提供硬度的测量。在最优选实施方式中，足跟垫测得20±3Asker C。 
足跟垫优选由热塑性橡胶凝胶(也称为TPR凝胶)制成。也可使用其它凝胶，但优选的是使用的凝胶具有以下特性： 
足跟垫的鞋表面可提供有呈现高缓冲特征的区域。优选实施方式结合蜂窝技术，利用该技术将凝胶层的一部分模制成蜂窝式样。早已知晓蜂窝式样能通过暂时变形然后恢复到原始构造来偏转力。参见 
图2最佳地示出了足跟杯的仰视(鞋侧)图。如图2所示，加强部件6沿着每个边也固定在结构凝胶层1的底(鞋)侧，并延伸到前边缘3。图2还示出了足跟垫7，其优选地包括多个蜂窝区域8。图示的足跟垫7固定在足跟杯底侧上的凝胶内凹入处上。 
参照底部立体图3，可以看到结构凝胶层1和加强部件6，以及足跟垫7、向上延伸的壁4、前边缘3和后足跟端部11。 
现在参照分解图4，可以看见由结构凝胶层1限定的凹入的足跟垫区域9和槽10。足跟垫7形状设计为适合于足跟垫区域9并形成足跟杯底部上的大致平面表面的一部分。槽10适于接收加强部件6使得形成没有障碍突起的大致连续的鞋侧表面。槽10和加强部件6基本上遵循向上延伸的壁4的足跟形状曲率。加强部件6提供了与穿用者脚的足跟后面的形状相符合的稳定结构。因此加强部件6为足跟并为从足跟接收区域的后面到前边缘3的结构凝胶层提供了稳定性。 
在优选实施方式中，在加强部件6中设置磨痕标记(scoringmarks)12。磨痕标记能有效地对鞋内底施力以帮助防止足跟杯移动。 
足跟垫7设置在足跟垫区域9内并优选结合蜂窝缓冲技术8。这个区域对加载在穿用者脚的足跟上的重量提供了更好的缓冲。 
优选地，如图3所示，足跟杯的后足跟端部11比前边缘区域厚。这在图4中最佳地示出。通常，在鞋中用于足跟杯的前部区域的空间较小且在放置足跟垫的区域需要更大的缓冲。 
图5示出了图2中沿线5-5截取的足跟杯横截面。可以看到结构凝胶层1、槽10、加强部件6、一体向上延伸的壁4及其顶点5、足跟垫区域9和平坦区域2。 
在优选制造工艺中，支架组件和足跟垫块组件各自通过注模法形成。形成之后，将支架和足跟垫块都放置在注入基部凝胶的基部模具中，将支架和足跟垫块粘结到本发明。 

Claims (14)

1.一种三重密度足跟杯，包括：
基本上呈足跟形状的基体，其具有从足跟后壁延伸到前边缘的长度，在使用时该前边缘被定位成垫在穿用者脚底的拱形区域的一部分之下；
所述呈足跟形状的基体包括结构凝胶层，该凝胶层具有脚接收表面和鞋侧表面；
所述脚接收表面具有平坦区域和向上延伸的一体壁，该平坦区域适于在使用时垫在穿用者脚底下，而该向上延伸的一体壁适于在使用时邻近所述穿用者足跟后部和侧部，所述一体壁包括具有最大高度的后部顶点，所述一体壁的高度从所述后部顶点向所述前边缘逐渐降低；
所述鞋侧表面限定了在所述结构凝胶层中形成的适于接收加强部件的槽；
加强部件，其固定到所述槽内的所述结构凝胶层上；所述加强部件包括比所述结构凝胶层密度大的材料，所述加强部件具有与足跟后部区域内的所述向上延伸的一体壁互补的曲率，所述曲率向下朝向所述足跟杯基部递减，然后沿着所述足跟杯的侧面向前延伸到所述前边缘；
所述鞋侧表面还限定足跟垫区域；以及
足跟垫固定在所述足跟垫区域内的所述结构凝胶层上。
2.如权利要求1所述的足跟杯，其中所述足跟垫包括第二密度凝胶。
3.如权利要求2所述的足跟杯，其中所述第二密度凝胶一体形成蜂窝式样。
4.如权利要求1所述的足跟杯，其中所述结构凝胶层选自热塑性聚氨酯弹性体凝胶和热塑性橡胶凝胶中之一。
5.如权利要求1所述的足跟杯，其中所述加强部件由选自聚丙烯、聚氯乙烯、热塑性硫化胶和热塑性橡胶中之一的材料制成。
6.如权利要求5所述的足跟杯，其中所述加强部件由热塑性橡胶制成。
7.如权利要求6所述的足跟杯，其中所述加强部件的硬度为约70±3Asker C。
8.如权利要求1所述的足跟杯，其中所述加强部件还包括磨痕标记。
9.如权利要求1所述的足跟杯，其中所述结构凝胶层的压缩变形为＜11±2％。
10.如权利要求1所述的足跟杯，其中所述结构凝胶层具有约1.2MPa和12kN/m的拉伸强度和撕裂强度。
11.如权利要求1所述的足跟杯，其中所述结构凝胶层具有约900％的断裂延伸率。
12.如权利要求1所述的足跟杯，其中所述结构凝胶层具有约24±3Asker C的肖氏/Asker硬度。
13.如权利要求2所述的足跟杯，其中所述足跟垫的压缩变形约为＜11±2％，拉伸强度和撕裂强度约为1.0MPa和10.6kN/m，断裂延伸率约为950％，且肖氏/Asker硬度约为20±3Asker C。
14.如权利要求2所述的足跟杯，其中所述足跟垫包括热塑性橡胶凝胶。
CN200980100726XA 2008-01-16 2009-01-12 三重密度的凝胶足跟杯 Expired - Fee Related CN101854824B (zh)

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