SHOCK ABSORBER AND PROPULSION THRUST SYSTEM OPTIMIZED FOR FOOTWEAR AND SOLE

摘要

The invention relates to a shock absorber and propulsion thrust sole for shoe. The midsole of shoe consists of an upper (figure 1, detail 2) and lower chassis (figure 1, detail 3) within a recess between them, which volume may be elastically deformed and comprises (figure 1, detail 4). Inside the recess there is are one or more elastic parts (figure 1, details 5 and 6). Elastic parts are compressed during the phase of the foot-shock and expand during the toe-off, with a propulsive thrust effect. To obtain the scope with more efficiency, a locking mechanism connect the upper chassis with lower chassis. Said locking mechanism in the foot-shock phase activate the block when the maximum compressive load in the rear of the midsole is reached. Said locking mechanism release the mechanism during the toe-off phase when compression load is applied on the front of the midsole, supporting the propulsive thrust. Scope of the invention is to improve efficiency and comfort of the sole and of the shoe itself.