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US 5,843,352 AGranted
Production method for peripheral ornamental strips for foamed insoles
OwnerCheng-Hsian Chiinventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a production method for ornamental strips, wherein castings of dimensions smaller than or equal to the final product are pressed under heat and molded. An increased range of variations is achieved by fusing together the casting of the ornamental strip and plastic platelets of various forms, colors or material hardness, which are put on the castings. By flexibly adapting the production method to specific needs, production time and cost are saved.
Claims6
A method for producing ornamental strips for foamed insoles, comprising the steps of:
- preparing a mixture containing ethylene vinyl acetate (EVA);
- rolling out said mixture into a plate;
- cutting castings out of said plate, said castings being scaled down, as compared to the size of said ornamental strips;
- heating said castings in heat forming molds, whose size is scaled down, as compared to the size of said ornamental strips, at a temperature of 180.degree. C.;
- and
- exposing said castings to air, wherein said castings expand to the size of said ornamental strips.
3 more elements
A method for producing ornamental strips for foamed insoles, comprising the steps of:
- preparing a mixture containing ethylene vinyl acetate (EVA);
- forming a plurality of castings and a plurality of platelets respectively by cutting or injection die-casting said mixture,
- scaling down said plurality of castings and said plurality of platelets, as compared to the size of said ornamental strips,
- wherein each of said plurality of castings has a plurality of depressions and a platelet is fit in each of said plurality of depressions;
- heating said castings in heat forming molds, whose size is scaled down, as compared to the size of said ornamental strips, at a temperature of 180.degree. C., so as to fuse said plurality of platelets with said plurality of castings;
- and
- exposing said castings to air, wherein said castings expand to the size of said ornamental strips.
4 more elements
Dependencies are inferred from the claim text.