A - Human Necessities – 43 – B
Patent
A - Human Necessities
43
B
A43B 5/10 (2006.01) A43B 5/06 (2006.01) A43B 13/18 (2006.01)
Patent
CA 2205388
My invention involves the inplantation of a set of compression springs on the inside and base of an athletic shoe, in the front area of the shoe. The purpose of this invention is to try and help athletes increase their athletic ability and potential. The invention works like this: The athlete wears the specially made athletic shoes for any particular sport, whether it be track and field, basket-ball, volley-ball, or any other sport involving running and jumping. I'll use basket-ball as an example; the athlete will be able to increase his/her jumping potential. When an athlete jumps, all of the force and weight is focused in the front half of the foot, ( from the ball to the toes ). The springs in the athletes shoes are located in this area. The force and weight of the athlete helps compress the springs just enough to not fully compress and as the athlete releases, he/she gets that extra leverage from the springs. As the athlete lands, the weight and force of landing is absorbed through cushioned layers in this area of the shoes. The springs are all the same height, 7/8 of an inch, and are all the same diameter, 11/16 of an inch, except for one which is 1 inch and 1/8 in diameter. The springs are made of stainless steel and are open wound helical springs. They are cylindrical in shape and have squared and ground ends coiled left hand. Force of the springs equals the weight class of the athlete within 10 - 20 lbs., ( example: Force equals 70 lbs. at 1 and 3/4 inches compressed height ( 1 and 1/2 inches deflection from free length, solid height equals 1 and 5/8 inches maximum with ends closed and ground. ). Stress equals 700-1000 psi. All the springs will be strategically placed on a flexable, hard piece of plastic taking the shape of the front of the shoe. The springs will be held down by a set of screws, (4), one on each side and top to bottom of the circumfrence of the springs. An inner ring of equal width will be placed inside the springs before screwing the springs down, so that the screws will be equally leveled in place. A thin layer of hard plastic will be placed over top of the springs before the layer of foam cushion and the insole.
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