Shoe design

Details Shoe design Shoe design

1983-02-07

1985-02-12

Schroeder, Werner H.

Boots, shoes, and leggings

Soles

Laminated

36 32R, 36 59C, A43B 1314, A43B 1318, A43B 1300

Patent

active

044982518

ABSTRACT:
A running shoe having a sole structure that includes an outsole extending from the toe to the heel and having a thickened section extending the full width of the sole structure and positioned to underlie the ball of the foot. The thickened section is appreciably thicker than the portions of the outsole that underlie the remainder of the foot. A plurality of parallel slots are cut in the thicker section across the full width of the outsole and extend from the bottom surface or tread, upwardly to just short of the top surface of the outsole to form hinges which allow it to readily flex. The slots may be partially bridged by struts which do not interfere with the hinge action at each of the slots but which provide added strength to the outsole at that region.

REFERENCES:
patent: 2162912 (1939-06-01), Craver
patent: 2201300 (1940-05-01), Prue
patent: 2981011 (1961-04-01), Lombardo
patent: 3018571 (1962-01-01), Doherty
patent: 4309832 (1982-01-01), Hunt
patent: 4377041 (1983-03-01), Alchermes
patent: 4402146 (1983-09-01), Parracho et al.

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