Heel molder

Details Heel molder Heel molder

1988-12-02

1989-11-14

Meyers, Steven N.

Boot and shoe making

Processes

Miscellaneous parts

12 543, 12 125, A43D 1100

Patent

active

048797782

ABSTRACT:
A heel molder to form the heel part of a footwear upper assembly. The heel part includes a thermally-activated material that is deformable when heated above a threshold temperature; it is non-deformable below that threshold temperature; it is non-deformable at room temperature. The material preferentially includes a thermally-activated adhesive, that is, an adhesive that becomes tacky or sticky at or about the temperature at which the material becomes deformable. The heel molder receives the upper assembly, forms the same at the heel region while the material is above the threshold temperature, cools the material whereby the thermally-activated material--and the upper itself and liner--takes a permanent preformed set as a laminate for later operations. According to the present teaching, the thermally-activated material or counter, the upper and the lining of the upper typically form, when cooled, a laminate that retains its geometry for subsequent operations thereon.

REFERENCES:
patent: 3328815 (1967-07-01), Forma
patent: 4485512 (1984-12-01), Flanders et al.
patent: 4553281 (1985-11-01), Vornberger
patent: 4660242 (1987-04-01), Vornberger et al.
patent: 4679269 (1987-07-01), Becka et al.
patent: 4709433 (1987-12-01), Walega

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