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US 5,758,435 AGranted
Training shoes for applying a larger-than-normal load
AssigneeMiyata Co., Ltd.
InventorYoshiaki Miyata
Life of this patent
Estimating the term…
Abstract
A training shoe can apply a larger-than-normal load to leg muscles to strengthen them while maintaining good flexibility, cushioning properties and other necessary properties required for shoes. Regularly arranged weight chambers are formed in a resilient outsole. Weights formed of a mixture of metallic grains and an adhesive are embedded in the weight chambers. A rubber layer is provided between the outsole and a middle sole, and a thick cup-shaped insole is laid on the middle sole to absorb shocks. Also, a fairly thick tongue is provided to protect the instep of a foot.
Claims5
A training shoe comprising:
- a resilient sole formed with a plurality of weight chambers arranged in a regular pattern;
- a plurality of weights mounted in said weight chambers, respectively;
- and
- wherein each of said plurality of weights comprises a mixture of an adhesive matrix and metallic grains dispersed and buried in said adhesive matrix.
1 more element
Dependencies are inferred from the claim text.