发明名称 |
Heat insulating insert for footwear |
摘要 |
A heat insulating insert for a footwear which comprises a base sheet having a shape conforming with that of the sole of an average human foot and a toe cover at the toe portion of the base sheet for embracing the toe of the human foot. Porous bags containing exothermic agent therein are provided on the inner surface of the top of the toe cover and the toe portion of the base sheet in opposing and spaced relationship to the exothermic agent bag on the inner surface of the top of the toe cover and also in a portion of the base sheet corresponding to the plantar arch of the human foot. The exothermic agent performs exothermic reaction with the open air.
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申请公布号 |
US4249319(A) |
申请公布日期 |
1981.02.10 |
申请号 |
US19800113381 |
申请日期 |
1980.01.18 |
申请人 |
YOSHIDA, YOSHIYASU |
发明人 |
YOSHIDA, YOSHIYASU |
分类号 |
A43B7/02;A43B7/34;A61F7/02;A61F7/03;F24J1/00;(IPC1-7):A43B7/02;A43B3/10 |
主分类号 |
A43B7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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