| 摘要 |
The invention consists in the positioning of springs or elastic return means with the aim of balancing the plantar support, under the foot sole in the following points: the heel, between the second and third metatarsus, the fifth metatarsus and the point that is specular to the latter on the opposite side. This disposition allows to carry the return force from the ground during the deambulation or walking through a trajectory of the discharge points having a helicoid form, through the center of the tibiotalar joint, i.e. the center of the ankle. Such a possibility is achieved because the position of the springs in the above points describes a figure of eight whose center coincides with the center of the plantar arch, i.e. the point wherefrom the ground reaction force propagates towards the ankle and therefore the rest of the system. |
