Hybrid insole with multi-shock absorbing pad and method for fabricating thereof

Abstract

Provided are a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole. The hybrid insole includes an insole body including at least one sheet layer that is formed of an elastic material and has a shape of a human sole; a first absorbing pad means including first to fourth absorbing pad portions attached to the insole body corresponding to a metatarsal region, a tarsal bone region, and a calcaneus region of the human foot, and first to third connecting portions selectively connecting the first to fourth absorbing pad portions; and a second absorbing pad means including a fifth absorbing pad portion attached to the insole body corresponding to the metatarsal region and a phalange region of the human foot. The hybrid insole is configured such that absorbing pads of different structures are disposed to correspond to the bone structure for each region of the foot and the shape of an arch, thus distributing and absorbing the weight load of the human body.

What is claimed is: 
     
         1 . A hybrid insole comprising:
 an insole body comprising at least one sheet layer that is formed of an elastic material and has a shape of a human sole;   first absorbing pad means comprising first to fourth absorbing pad portions attached to the insole body corresponding to a metatarsal region, a tarsal bone region, and a calcaneus region of the human foot, and first to third connecting portions selectively connecting the first to fourth absorbing pad portions; and   second absorbing pad means comprising a fifth absorbing pad portion attached to the insole body corresponding to the metatarsal region and a phalange region of the human foot,   wherein each of the first to fifth absorbing pad portions comprises:   an absorption tube having an internal space;   a fluid liquid gel injected into the internal space of the absorption tube;   a first buffer particle mixed with the liquid gel and formed of a silica-based material; and   a second buffer particle mixed with the liquid gel and formed of a carbon nanoparticle,   wherein the first absorbing pad portion is attached to the insole body corresponding to the metatarsal region of the human foot,   wherein the second and third absorbing pad portions are attached to the insole body at a position corresponding to a region between the metatarsal region and the calcaneus region of the human foot, and   wherein the fourth absorbing pad portion is attached to the insole body corresponding to the calcaneus region of the human foot.   
     
     
         2 . The hybrid insole of  claim 1 , wherein the first to third connecting portions are disposed, respectively, between the first and second absorbing pad portions, between the third and fourth absorbing pad portions, and between the second and fourth absorbing pad portions, so that the liquid gel moves between the first to fourth absorbing pad portions to absorb and distribute a weight load of a human body. 
     
     
         3 . The hybrid insole of  claim 2 , wherein a thickness of the second absorbing pad portion is sequentially decreased in a direction from a medial region to a lateral region of the insole body, and a thickness of the third absorbing pad portion is sequentially decreased in a direction from the lateral region to the medial region of the insole body. 
     
     
         4 . The hybrid insole of  claim 3 , wherein an absorption tube forming the first to fifth absorbing pad portions is an elliptical silicone material having an elastic force. 
     
     
         5 . The hybrid insole of  claim 1 , wherein first and second dispersions of different materials are mixed with the liquid gel disposed in each of the first to fifth absorbing pad portions to disperse the first and second buffer particles. 
     
     
         6 . The hybrid insole of  claim 3 , wherein each of the first to third connecting portions comprises an injection port to inject the liquid gel. 
     
     
         7 . The hybrid insole of  claim 3 , wherein a plurality of first spacers and a plurality of second spacers are formed on an upper surface or a lower surface in the absorption tube disposed in each of the first to fifth absorbing pad portions, the first spacers being integrated with the absorption tube and having a first height, the second spacers being integrated with the absorption tube and having a second height that is smaller than the first height. 
     
     
         8 . The hybrid insole of  claim 3 , wherein a plurality of spacers integrated with the absorption tube are formed on an upper surface or a lower surface in the absorption tube disposed in each of the first to fifth absorbing pad portions, and spacers formed on the first to fourth absorbing pad portions among the plurality of spacers are sequentially decreased in height in a direction from the fourth absorbing pad portion to the first absorbing pad portion. 
     
     
         9 . The hybrid insole of  claim 1 , wherein the first buffer particle is a fumed type silica particle having a bimodal particle distribution. 
     
     
         10 . The hybrid insole of  claim 9 , wherein the first buffer particle is mixed in an amount of 10 to 30% by weight on the basis of a total weight of the liquid gel. 
     
     
         11 . The hybrid insole of  claim 1 , wherein the second buffer particle is composed of a carbon nanoparticle. 
     
     
         12 . The hybrid insole of  claim 11 , wherein the second buffer particle is mixed in an amount of 5 to 15% by weight on the basis of a total weight of the liquid gel.