Title:
TWO DENSITY-HARDNESS HEEL MANUFACTURING METHOD AND RESPECTIVE HARD TOP PIECE WITH A FLEXIBLE CONSTRUCTION
Document Type and Number:
WIPO Patent Application WO/2014/178739
Kind Code:
A3
Abstract:
The present invention relates to a heel or wedge comprising two materials of different densities or hardnesses and its cover, top piece or tread (3) with a groove or grooves, this heel or wedge is to be applied to soles of classic, casual, sportive or other type of footwear. The heel or wedge construction presented by the described invention will enable the damping or softening of the initial impact of the heel or wedge to the ground without any loss of stability and proper support of the foot. The above mentioned heel or wedge is made from the assembly of two different density or hardness materials, being the lowest density material (2) applied to the rear area of the heel or wedge in conjunction to another higher density material (1) applied to the front part of said heel or wedge, the described assembled materials will then be applied on top of a cover, top piece or tread (3) that has at least one groove (4) across its entire bottom surface from side to side.
More Like This:
| WO/2017/083697 | FOOTWEAR SOLE STRUCTURE |
Inventors:
FREITAS PAULO JORGE SAMPAIO (PT)
Application Number:
PCT/PT2013/000024
Publication Date:
April 09, 2015
Filing Date:
April 29, 2013
Export Citation:
Assignee:
LAMBDA & OMEGA LDA (PT)
International Classes:
A43B21/26; A43B13/16; A43B13/18
Foreign References:
| US4224749A | 1980-09-30 | |||
| DE29720627U1 | 1998-11-19 | |||
| US20110225852A1 | 2011-09-22 | |||
| DE1485665A1 | 1969-08-07 |
Attorney, Agent or Firm:
SIMÕES, José Raúl de Magalhães (67 - 2°, 1070-050 Lisboa, PT)
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