发明名称 |
ENERGY STORAGE AND RETURN SPRING |
摘要 |
A spring shoe, and also in particular a spring, as well as a method of returning energy to a user, are provided. In one embodiment, a method and apparatus stores foot strike energy and releases it after a slight delay, when it will exert a force on the user which includes a forward component. This is accomplished in an embodiment by a spring in the sole which has a decreasing spring force, such that the force required to compress the sole decreases for all or part of the compression displacement as the spring is compressed. |
申请公布号 |
WO2009030017(A1) |
申请公布日期 |
2009.03.12 |
申请号 |
WO2008CA01034 |
申请日期 |
2008.05.30 |
申请人 |
POWERDISK DEVELOPMENT LTD.;KLASSEN, JAMES, B.;BOEHM, DAVID, W. |
发明人 |
KLASSEN, JAMES, B.;BOEHM, DAVID, W. |
分类号 |
A43B13/18;A43B13/20;F03G1/00;F16F1/371;F16F1/373;F16F1/377;F16F1/52;F16F3/093;F16F9/02 |
主分类号 |
A43B13/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|