Boots – shoes – and leggings – Interfitted sole and heel
Patent
1979-11-13
1981-06-16
Lawson, Patrick D.
Boots, shoes, and leggings
Interfitted sole and heel
36 42, 36 76R, A43B 1328, A43B 2136, A43B 1342
Patent
active
042728975
ABSTRACT:
A shoe shank support suitable for being molded into a unit sole for a ladies high heel shoe provides increased stability and resistance to flexing and comprises a shank of metal strapping sufficiently long to extend from the heel area to approximately the beginning of the ball of the foot and a heel post which extends the height of the heel. The shank may be generally flattened and include a strengthening rib or it may be oval in shape. The heel post is attached to the heel area of the shank by being inserted through a hole and tightened in position by a reversed wing nut. The threaded end of the heel post extends the length of the heel and protrudes a small distance therefrom to provide a mounting for top lifts on the bottom of the heel. Additional holes may be provided in the shank for positioning the shank in a mold and preventing slippage of the shank during the molding process. In a second embodiment, the heel post may be molded into a separate heel unit and secured to a separately molded sole by threading into the wing nut fastener molded into the sole.
REFERENCES:
patent: 1934092 (1933-11-01), Rigante
patent: 3091872 (1963-06-01), Baumann et al.
patent: 4198770 (1980-04-01), Mateo
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