Springing element for football shoe sole, includes spring with hole at center, with the hole being encircled by radial tongues

摘要

Spring (1) in the form of small dome, cap or arched washer, cone, truncated cone, combinations of shapes of cones, truncated cones, sectors of sphere or spheroid, has a hole (101) at center. The hole is encircled by radial tongues (201). Independent claims are also included for the following: (a) footwear sole; (b) stud for sports shoe; (c) sports shoe.