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US 11,331,561 B1Granted
Multi-function ground engaging device
OwnerKuang-Ming Wu, Thomas Jason Wuinventors
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Abstract
A ground-engaging devices that is capable of sustained rolling, stable braking, secure standing, and walking. In one preferred embodiment, the invention relates to a wheeled footwear device. In another preferred embodiment, the invention relates to a wheeled footwear platform. In yet another preferred embodiment, the invention relates to a wheeled artificial foot.
Claims19
A wheeled device for securing and supporting the foot load of the user;
- wherein the device sole comprises
- a forefoot portion wherein at least one wheel is configured;
- a heel portion with a lower, heel-tip part geometrically configured for contacting a surface;
- an arch portion wherein at least one wheel is configured in a protruding manner that prevents the forefoot portion and the heel portion from contacting the surface simultaneously, so as to form two spans of different slopes:
- one before and one after the arch-portion wheel;
- wherein a user can conduct and sustain rolling by shifting one's weight forward so as to project one's ankle load onto the span between the forefoot-portion wheel and the arch-portion wheel;
- and
- wherein a user can conduct braking and standing by shifting one's weight aft so as to project one's ankle load onto the span between the arch-portion wheel and the heel-tip.
5 more elements
Dependencies are inferred from the claim text.