Sole Structure With Magnetic Cushion

Abstract

A sole structure with magnetic cushion includes an outsole; a midsole main body located on a top of the outsole and having a recess formed at a heel portion thereof; a magnetic cushion positioned in the recess of the midsole main body; a foam rubber layer located on a top of the midsole main body to sandwich the magnetic cushion between the foam rubber layer and the midsole main body; and an insole located on a top of the foam rubber layer for directly contacting with a user's foot. The magnetic cushion includes sequentially laminated first magnetic element, foam rubber spacer, and second magnetic element, and the first magnetic element and the second magnetic element are arranged with their poles of the same polarity facing toward each other, so that a magnetic repulsion is existed between the first and second magnetic elements to provide good buffering and cushioning effect.

1 . A sole structure with magnetic cushion, comprising:
 an outsole;   a midsole main body being located on a top of the outsole, and having a recess formed on a heel portion thereof;   a magnetic cushion being positioned in the recess of the midsole main body and being a laminated structure having a first magnetic element, a foam rubber spacer, and a second magnetic element; the first magnetic element and the second magnetic element being arranged with their poles of the same polarity facing toward each other; and each of the first magnetic element and the second magnetic element being a rectangular flat body having a rectangular surface with a length breadth ratio of about 1:4;   a foam rubber layer located on a top of the midsole main body to sandwich and seal the magnetic cushion between the foam rubber layer and the midsole main body; and   an insole located on a top of the foam rubber layer for directly contacting with a user's foot.   
     
     
         2 . The sole structure with magnetic cushion as claimed in  claim 1 , wherein the first magnetic element and the second magnetic element are Nd—Fe—B magnets. 
     
     
         3 . The sole structure with magnetic cushion as claimed in  claim 1 , wherein the first magnetic element and the second magnetic element are arranged with their positive or negative poles facing toward each other. 
     
     
         4 . The sole structure with magnetic cushion as claimed in  claim 1 , wherein the rectangular surface of the rectangular flat body has an area ranging from 100 to 2000 mm 2 . 
     
     
         5 . The sole structure with magnetic cushion as claimed in  claim 3 , wherein the rectangular surface of the rectangular flat body has an area of 400 mm 2 . 
     
     
         6 . The sole structure with magnetic cushion as claimed in  claim 1 , wherein the rectangular flat bodies of the first and the second magnetic element each have a thickness of about 2˜4 mm.