Shoe part shaping insert to be placed in a mold
AssigneeECCO Sko A/S
InventorHans Christian Hansen
Life of this patent
Estimating the term…
Abstract
The invention relates to a method for manufacturing a shoe part by injection molding a material into a mold where an insert is placed. The insert comprises at least two separable insert parts, an upper insert part and a lower insert part, providing an injection channel in the region of the separation area between the two parts. The insert is placed in the chamber and the injection material is injected through a sprue channel in the mold into the injection channel and into a cavity, whereby the shoe part is formed. The mold is opened after the injection material has cured and the insert is separated into the upper and lower insert parts, thereby exposing the cured material in the injection channel.
Claims8
A shoe part shaping insert (16) adapted to be placed in a mould and for shaping a shoe part (8), characterised in that the insert (16) comprises at least an upper insert part (50) and a lower insert part (51), said upper part (50) comprising an upper first sur-face (55) facing a lasted upper and an oppositely placed upper second surface (56), said upper part further comprising an upper side surface (57) connecting the first and second surfaces (55,56) of the upper part (50) with each other, and the lower insert part (51) comprising a lower first surface (58) facing the inside of the mould (31) and an oppositely placed lower second surface (59) facing the upper second surface (56) and a lower side surface (60) connecting the lower first and second surfaces (58, 59), said upper and lower second surfaces (56, 59) encircling at least one injection channel (35) when the two surfaces abut each other and the insert part (16) being adapted to be separated, thereby exposing the injection channel (35).
Dependencies are inferred from the claim text.