Method for stiffening shoe insoles

Details Method for stiffening shoe insoles Method for stiffening shoe insoles

1980-10-06

1982-12-07

Lawson, Patrick D.

Boot and shoe making

Processes

Miscellaneous parts

12 183, 36 76C, A43D 2100, A43D 3100, A43B 1342

Patent

active

043619215

ABSTRACT:
A method and apparatus for forming a shoe stiffener directly on a selected surface of a shoe assembly (such as a shoe shank on the bottom of an insole) from a strip of initially flexible, uncured thermosetting material encased in a sleeve. The apparatus supports a shoe assembly, bottom up, to expose the insole bottom to a radiant heater. Means are provided for automatically locating a strip of the shank material on the insole bottom and for raising the shoe assembly, together with the insole strip, into engagement with a means for urging the shank strip against and into conformity with the contour of the insole bottom. A radiant heater then is operated to activate the shank strip. The ball and heel ends of the shank strip are pressed firmly toward the insole by heat absorbing presser pads which cause the ends of the shank strip to be tapered and to promote secure bonding of the ends of the shank strip to the insole bottom.

REFERENCES:
patent: 2151974 (1939-03-01), Kennison et al.
patent: 2294982 (1942-09-01), Hathaway
patent: 4122573 (1978-10-01), Stanton

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