Shoe Midsole

Abstract

A shoe midsole using a plastic material having flexibility, repulsion, and restoring characteristics and capable of instantaneously absorbing and damping an impact from every direction. The plastic material, which has flexibility and restoring characteristics, is used as the material of a body of the shoe midsole. The thickness of the body is set to a range from 1.5 mm to 3.0 mm. The body is formed in a shape that can control the arch of the foot. A heel section provided with a U-shaped edge and made of a plastic material is formed on the underside of a heel section of the body so as to be integral with the body. A continuous groove is provided in a region continuing from a side surface of the U-shaped edge of the heel section to the lower surface of the heel section of the body.

1 . A shoe midsole to be put on an inner bottom part of a shoe and used,
 wherein a material of a body of the shoe midsole is a plastic material having flexibility, repulsion and restoration characteristics,   the thickness of the body is set within a range from 1.5 mm to 3.0 mm,   the body is formed in a shape capable of controlling an arch of a foot,   a heel section provided with a U-shaped edge and made of the plastic material is formed integrally with the body in a lower region from a heel portion of the body to a near portion of an arch of a foot,   the outer side of the U-shaped edge is projected horizontally and lower surface of the heel section is formed in a plane shape, and   a groove is provided in a region continuing from an upper surface of the horizontally projected outer side of the edge of the U-shaped edge to a lower surface inclining in an obliquely downward direction of the heel portion of the body, the groove continuing from one end to another end of the U-shaped edge.   
   
   
       2 . The shoe midsole as claimed in  claim 1 , wherein an impact absorbing material is embedded along the groove. 
   
   
       3 . The shoe midsole as claimed in  claim 1 ,
 wherein a recessed portion continuing from one end to another end of the U-shaped edge is provided at a lower surface of a plane shaped edge of the U-shaped edge of the heel section,   the depth of the recessed portion is set within a range from 2.0 mm to 3.0 mm, and impact absorbing materials are mounted in the recessed portion.   
   
   
       4 . (canceled) 
   
   
       5 . The shoe midsole as claimed in  claim 1 , wherein an impact absorbing material is embedded along the groove, a recessed portion continuing from one end to another end of the U-shaped edge is provided at a lower surface of a plane shaped edge of the U-shaped edge of the heel section, the depth of the recessed portion is set within a range from 2.0 mm to 3.0 mm, and impact absorbing materials are mounted in the recessed portion. 
   
   
       6 . The shoe midsole as claimed in  claim 1 , wherein a recessed portion continuing from one end to another end of the U-shaped edge is provided at a lower surface of a plane shaped edge of the U-shaped edge of the heel section, the depth of the recessed portion is set within a range from 2.0 mm to 3.0 mm, impact absorbing materials are mounted in the recessed portion and the impact absorbing materials having different hardnesses are mounted at the inner side and outer side of the recessed portion. 
   
   
       7 . The shoe midsole as claimed in  claim 1 , wherein an impact absorbing material is embedded along the groove, a recessed portion continuing from one end to another end of the U-shaped edge is provided at a lower surface of a plane shaped edge of the U-shaped edge of the heel section, the depth of the recessed portion is set within a range from 2.0 mm to 3.0 mm, impact absorbing materials are mounted in the recessed portion and wherein the recessed portion continuing from one end to another end of the U-shaped edge is provided at the lower surface of the plane shaped edge of the U-shaped edge of the heel section, the depth of the recessed portion is set within a range from 2.0 mm to 3.0 mm, the impact absorbing materials are mounted in the recessed portion and the impact absorbing materials having different hardnesses are mounted at the inner side and outer side of the recessed portion.