Novel environmental-protection shoe tree

Abstract

The present invention relates to the manufacture of a novel environmental-protection shoe tree, and particularly to the manufacture of an environmental-protection shoe tree made by molding a primary material of rice husk, in which fibrous plant materials, such as rice husks and wheat husks are sieved and pulverized and are mixed with natural rubber and additives, followed by mechanical mixing to carry out a uniform mixing operation for forming an environmental-protection material block, which is then processed by a rolling machine to uniformly mix with a crosslinking agent and form an environmental-protection material plate, which is then cut into a desired size and put in a mold to be heated and pressurized by a hydraulic machine for performing molding to eventually form a final product of a shoe tree showing characteristics of environmental protection.

1 . A shoe tree, which is made of a production material that contains a primary raw material of waste rice husks or wheat husks obtained from harvested agricultural products in a percentage of 30-80% of total weight and subjected to sieving and pulverization operation;
 a rubber material being subjected to rolling and compounding to form a rubber raw material that is properly softened and effectively enhanced in respect of tackiness, having a percentage of 12-60% in weight;   additives including powder of zinc oxide, stearic acids, activators, and prompters and having a percentage of 8-10% in weight;   wherein the properly compounded rubber material and the additives and the primary raw material are deposited, in proper percentages, in a mixing machine to carry out sufficient mixing operation to form rubber material blocks, the material blocks being then fed into a rolling machine with crosslinking agent to perform uniform rolling operation, the amount of the crosslinking agent being 1-2%, whereby the material blocks formed by the mixing operation is rolled by rolls of the rolling machine to form a uniform material plate, which is then slit and deposited in a hydraulic shaping mold to be heated and pressurized for carrying out a molding operation, by which an environmental-protection shoe tree for use in a shoe is made.   
     
     
         2 . The shoe tree according to  claim 1 , wherein the rice husks or the wheat husks have a size less than 3 mmφ. 
     
     
         3 . The shoe tree according to  claim 1 , wherein the rubber comprises natural rubber and synthetic rubber. 
     
     
         4 . The shoe tree according to  claim 1 , wherein the material plate has a plate thickness of 1-50 mm. 
     
     
         5 . The shoe tree according to  claim 1 , wherein the shoe tree has an outer configuration comprising a flange for hand gripping. 
     
     
         6 . The shoe tree according to  claim 1 , wherein in the mixing operation, additional additives including natural active bamboo charcoal particles, bamboo vinegar solution, specific essences for bacteriostasis and deodorization, and tiny particles that irradiate far infrared radiations are selectively added. 
     
     
         7 . The shoe tree according to  claim 6 , wherein the tiny particles of natural active bamboo charcoal particles, bamboo vinegar solution, specific essences for bacteriostasis and deodorization, and tiny particles that irradiate far infrared radiations are added in a percentage of 2-15%.