| 摘要 |
Supple/rigid structure comprises first layer (1), second layer (2) attached to first layer, and third layer (3). First layer is flexible, but non-stretchy. Second layer is composed of series of elongated blocks (20), slightly incompressible, placed transversally relative to longitudinal direction of structure. Third layer is glued under second layer, and exerts restoring force in counter-flexion direction (C). Independent claims are also included for (a) the shoe sole, (b) the shoe rod, (c) the roller skate, (d) the attaching system of sport shoe on gliding part, (e) the protective system.
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