Eccentric toe-off cam lever
US8732981B2 · kind B2 · utility
17Cited by
11References
28Claims
0Family size
Inventor
Key dates
| Filing date | Apr 20, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Sep 29, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/145
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A sole system which allows plantarflexion and dorsiflexion in the running/walking gait; provides a mechanical advantage through articulation of the forefoot to stimulate an upward plantar moment force during toe-off; and increases the distance per step without altering the stride pattern. An embodiment of the current invention has an eccentric toe-off cam lever (“cam lever”) integrated into the midsole of a shoe. The cam lever of the embodiment includes: a distal longitudinally extending cam element; a forefoot fulcrum element; and a rear longitudinally extending cam element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.