Method of making a shoe and an outsole
An outsole for a shoe, especially a house slipper, has an outer layer constituted of a fabric material, and a backing layer constituted of a shape-retaining, moldable material. The fabric layer and the backing layer are molded integrally together to provide the outsole with increased slip resistance, quieter usage and increased shape retention.
1. A method of making a shoe, comprising the steps of:
a) molding a molded shoe outsole with an inner backing part of a shape-retaining, moldable material and with an outer part of a material different from the shape-retaining material, the molding step being performed by placing the outer part in an injection mold, and by injection molding the inner backing part in situ with the outer part in the injection mold;
b) continuing the injection molding step until at least the inner backing part is integrally embedded in the outer part in order to resist separation of the different materials and to resist shape distortion of the outer part which is retained and held in shape and position by the shape-retaining material of the inner backing part; and
c) attaching a shoe upper to the molded shoe outsole.
2. The method of claim 1 , wherein the attaching step is performed outside of the mold.
3. The method of claim 1 , wherein the attaching step is performed subsequently to, and independently of, the molding step.
4. The method of claim 1 , wherein the attaching step is performed by adhering the shoe upper to the shoe outsole.
5. The method of claim 1 , wherein the attaching step is performed by stitching the shoe upper to the shoe outsole.
6. The method of claim 1 , wherein the attaching step is performed by non-moldably attaching the shoe upper to the shoe outsole.
7. The method of claim 1 , wherein the attaching step is performed by moldably attaching the shoe upper to the shoe outsole.
8. The method of claim 1 , and further comprising the step of non-moldably attaching a shoe lower between the shoe upper and the shoe outsole.
9. The method of claim 1 , wherein the molding step is performed by molding a tread pattern with raised and recessed areas on both the inner backing part and the outer part.
10. The method of claim 1 , wherein the molding step is performed by positioning the outer part in direct non-adhesive contact with the inner backing part.
11. The method of claim 1 , and further comprising the step of overlying the out sole with a cushioning element.
12. The method of claim 11 , and further comprising the step of non-moldably attaching the cushioning element to the outsole.
13. The method of claim 11 , and further comprising the step of confining the cushioning element in an interior compartment of the shoe.
14. The method of claim 1 , and further comprising the step of exposing a visible bare region of the inner backing part uncovered by the outer part, and wherein the attaching step is performed by attaching the shoe upper at the bare region of the inner backing part out of contact with the outer part.
15. The method of claim 1 , and the step of constituting the inner backing part of plastic material.
16. The method of claim 1 , and the step of constituting the inner backing part of rubber material.
17. The method of claim 1 , and the step of constituting the outer part of a knitted material.
18. The method of claim 1 , and the step of constituting the outer part of a woven material.
19. The method of claim 1 , and the step of printing indicia on the outer part.
20. The method of claim 1 , wherein the molding step is performed without placing a cushioning element in the mold.
21. A method of making a shoe outsole for a shoe having shoe components, comprising the steps of:
a) positioning an outer part of a material in an injection mold; and
b) injection molding an inner backing part of a shape-retaining, moldable material different from the material in situ with the outer part in the injection mold so as to integrally embed the inner backing part in the outer part, in order to resist separation of the different materials and to resist shape distortion of the outer part which is retained and held in shape and position by the shape-retaining material of the inner backing part.
22. The method of claim 21 , wherein the molding step is performed by molding a tread pattern with raised and recessed areas on both the inner backing part and the outer part.
23. The method of claim 21 , wherein the molding step is performed by positioning the outer part in direct non-adhesive contact with the inner backing part.
24. The method of claim 21 , and the step of constituting the inner backing part of plastic material.
25. The method of claim 21 , and the step of constituting the inner backing part of rubber material.
26. The method of claim 21 , and the step of constituting the outer part of a knitted material.
27. The method of claim 21 , and the step of constituting the outer part of a woven material.
28. The method of claim 21 , and the step of printing indicia on the outer part.
29. The method of claim 21 , and further comprising the step of exposing a visible bare region of the inner backing part uncovered by the outer part, the shoe outsole constituting a discrete molded shoe component for assembly at the bare region out of contact with the outer part with other of the shoe components.
30. The method of claim 21 , wherein the inner backing part and the outer part are the only parts of the outsole within the mold.