Boot and shoe making – Processes – Miscellaneous parts
Patent
1979-02-05
1980-07-29
Lawson, Patrick D.
Boot and shoe making
Processes
Miscellaneous parts
12147B, 36 245, A43D 2500, A43B 1328
Patent
active
042143357
ABSTRACT:
An improved method for making soles provided with high heel, for women shoes, in a single piece, is described which consists of injection molding thermoplastics materials in a mould formed by several complementary portions defining therebetween the cavity of the sole heel. Prior to the injection molding, a sheet material for laterally and rearwardly covering the heel and a stiffening core or rigid structure are inserted. The rigid structure is provided with a downwardly vertical direction concavely curved front wall and, at its front face, with two continuous side fins projecting for a length equal to the thickness of the covering sheet material and, at its base with slots and at least two blind holes effective to fix the heel top-piece. The rigid structure is provided, at its upper surface, with a hole which as it is filled up by the plastics material, contributes to improve the anchoring of the rigid structure to the sole. The heel top-piece is provided with slots perfectly mating with the rigid structure slots. Between the side fins of the rigid structure and the strip of the covering material a gap is formed which is filled by the thermoplastics material.
REFERENCES:
patent: 42423 (1864-04-01), Ware
patent: 2083376 (1937-06-01), Heilhecker
patent: 2912771 (1959-11-01), Harrison
LandOfFree
Method for making soles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making soles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making soles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-898377