Patent ID: 11950655
Assignee: DAH SHENG CHEMICAL INDUSTRY CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC A  B | IPC A  B

Claim 3:
4. A processing method for making an insole, said insole comprising an insole body, said insole body comprising an upper insole layer and a lower insole layer, said upper insole layer comprising a top surface and an opposing bottom surface, the processing method comprising the steps of:
a) bonding at least one foam to said bottom surface of said upper insole layer at positions corresponding to at least one of the heel portion, inner arch portion, outer arch portion, inner metatarsal portion, outer metatarsal portion, inner toe portion and outer toe portion of the structure of the human foot;
b) bonding said lower insole layer to said bottom surface of said upper insole layer; and
c) performing cold pressing forming;
wherein each said foam has a gap formed therein, said gap defining an air cavity.