Punching elasticity adjustment structure
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United States of America Patent
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Jun 30, 2015
Grant Date -
May 2, 2013
app pub date -
Oct 27, 2011
filing date -
Oct 27, 2011
priority date (Note) -
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Abstract
The present invention relates to a punching elasticity adjustment structure which comprises one punching bag connecting set, one elastic bladder, one air valve, one base, and one elastomer. The said elastic bladder is inflated via said air valve to increase the inner pressure so the said elastic bladder expands vertically with rised height, resulting in bigger gap between said punching hag connecting set and said base and simultaneously elongates said elastomer and changes its elasticity. Elasticity therefore can be adjusted to meet the demand of diversified training effects.
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