Patent ID: 9283724
Filing Date: 2016-03-15
CPC Classification: A43B,B29D,B33Y

Claim Text:
1. A method for manufacturing a shoe sole ( 3 ) by injection moulding sole material onto a shoe upper ( 2 ) mounted on a last ( 45 ), forming a lasted shoe upper, where the sole is attached to the shoe upper after repeated injections, the method comprising: placing a shoe sole shaping insert ( injecting a first sole material of a given colour and given density into a first cavity ( removing the shoe sole shaping insert ( injecting a second sole material of another colour and/or density through a second injection channel ( wherein the first cavity occupies a first continuous area along a length of the injection chamber, the second cavity occupies a second continuous area along the length of the injection chamber, and the shoe sole shaping insert separates the first and second cavities along the length of the injection chamber.