| CPC A43C 13/04 (2013.01) [A43B 13/223 (2013.01); A43C 15/161 (2013.01)] | 3 Claims |
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1. A spike structure made of different materials for connecting with a body, the spike structure comprising:
a sole protruding portion provided for connecting with the body, the sole protruding portion including a space, and the sole protruding portion including a bottom section and a protruding section connected to each other, an extension direction of the bottom section being different from that of the protruding section, wherein an end of the protruding section that is not connected to the bottom section includes an end surface, a side surface of the protruding section facing the space is a vertical surface, a first angle θ is defined between the end surface and the vertical surface, and a material of the sole protruding portion is polypropylene;
an interface member including a first section and a second section connected to each other, and the first section and the second section extending in different directions, the first section including a first inner surface and a first outer surface opposite to each other, the first inner surface of the first section being attached to the end surface, the second section extending into the space, the second section including a second inner surface and a second outer surface opposite to each other, the second inner surface being attached to the vertical surface, and the interface member being made of a hard material with a Shore hardness of 55D˜75D; and
a cleat member including a head portion and an extension portion connected to each other, the head portion being located outside the space, the extension portion extending into the space, an end of the head portion connected to the extension portion includes a stepped surface attached to the first outer surface of the first section, the extension portion including an outer peripheral surface attached to the second outer surface, a hardness of the cleat member being smaller than that of the interface member and the sole protruding portion, and a material of the cleat member is thermoplastic polyurethane;
wherein the sole protruding portion further includes a groove, the groove includes an abutting end surface, the abutting end surface and the vertical surface extend in different directions, a second angle is formed between the abutting end surface and the vertical surface, the interface member further includes a third section, the third section is connected to an end of the second section that is not connected to the first section, the third section and the second section extend in different directions, the third section includes a third inner surface and a third outer surface opposite to each other, and the third inner surface is abutted against the abutting end surface.
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