Athletic shoe midsole design and construction
US6389713B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Sep 14, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/183
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A midsole assembly for an athletic shoe includes a midsole formed of soft elastic material and a corrugated sheet disposed in a heel portion to a forefoot portion of the midsole. The upper midsole has a different hardness than the lower midsole. When the upper midsole has a lower hardness than the lower midsole, foot contact feeling and cushioning properties can be improved. On the other hand, when the lower midsole has a lower hardness than the upper midsole, shock load on landing is relieved and the cushioning properties can be improved. Moreover, in this case, when the load from the sole of a foot is applied to the upper midsole having a relatively high hardness, the corrugated sheet functions in such a way that the lateral deformation of the upper midsole can be prevented and running stability can be secured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.