Process for the manufacture of moulded insoles

Details Process for the manufacture of moulded insoles Process for the manufacture of moulded insoles

1980-01-03

1981-09-29

Lawson, Patrick D.

Boot and shoe making

Processes

Miscellaneous parts

36 44, A43D 00, A43B 1338

Patent

active

042914280

ABSTRACT:
A process for manufacturing insoles from flexible, porous and stickable sheet plastic material by sheering the sheet to form a peripheral cut of the insole and an internal cut in the heel area to form an open area surrounded by a land area. The insole is then placed in a mold die and plastic is injected to fill in the open area and surround the land area to conform to a predetermined contour. The insole is stabilized in the die by a plurality of rods positioned within the die.

REFERENCES:
patent: 2897611 (1959-08-01), Schaller
patent: 3643353 (1972-02-01), Weight
patent: 3892077 (1975-07-01), Wolstenholme et al.

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