Patent ID: 6397496
Filing Date: 2002-06-04
Classification: A43B,A63B

Abstract:
An article of footwear having a support structure (10; 100), the support structure (10; 100) defining a lower sole formation (17) having a toe region (16) and a heel region (18); and upper leg portion (20);wherein a primary lever (22) is mounted on the support structure (10; 100) for movement about a primary pivot (23), the primary pivot (23) being located adjacent the heel region (18) and the primary lever (22) extending from the primary pivot (23) below the sole formation (17) of the support structure (10; 100) downwardly and towards the toe region (16) and being biased away therefrom by primary lever resilient means (38); and a secondary lever (26) being pivotally mounted to the primary lever (22) for movement about a secondary pivot (29), the secondary pivot (29) being adjacent the lower end of the primary lever (22), a first portion of the secondary lever (26) extending from the secondary pivot (29) downwardly and towards the toe region (16) and being biased away from the sole formation (17) of the support structure (10) by secondary lever resilient means (34), and the first portion of the secondary lever (26) being pivotal relative to the first lever (22) towards the sole formation (17) against the biasing force of the secondary lever resilient means (34).