Ball of foot shoe inserts
View Patent ↗A removable ball of the foot insert for placement into footwear at a position in correspondence with a forefoot portion of the footwear includes a substantially planar member made from a viscoelastic gel, the planar member including a lower surface and an upper surface, and a plurality of spring walls formed from a viscoelastic gel and extending from the lower surface of the planar member at a predetermined area corresponding to a ball of the foot when the insert is inserted into the footwear, for separating bones of second and third metatarsals of the foot, the spring walls having heights that generally decrease outwardly from a center of the predetermined area, and the viscoelastic gel of the planar member having a hardness greater than a hardness of the viscoelastic gel of the spring walls.
1. A removable ball of the foot insert for placement into footwear at a position in correspondence with a forefoot portion of the footwear, comprising:
a substantially planar member made from a viscoelastic gel, the planar member including a lower surface and an upper surface; and
a plurality of spaced apart spring walls formed from a viscoelastic gel and extending from the lower surface of the planar member at a predetermined area corresponding to a ball of the foot when the insert is placed into the footwear, for separating bones of second and third metatarsals of the foot, said spring walls having heights that generally decrease outwardly from a center of said predetermined area;
wherein the viscoelastic gel of the planar member has a hardness greater than a hardness of the viscoelastic gel of the spring walls;
wherein said viscoelastic gel comprises a tackifier; and
wherein said insert comprises a low friction cover layer secured to said upper surface.
2. The removable ball of the foot insert according to claim 1 , wherein each spring wall extends in a generally lengthwise direction of the insert.
3. The removable ball of the foot insert according to claim 1 , wherein each spring wall extends generally along a curve, the apex of which is located generally in the center of the insert.
4. The removable ball of the foot insert according to claim 1 , wherein each spring wall has a height that decreases from a center thereof toward opposite ends thereof.
5. The removable ball of the foot insert according to claim 1 , wherein spring walls on opposite sides of a center one of the spring walls decrease in height transversely to an extending direction of the center one of the spring walls.
6. The removable ball of the foot insert according to claim 1 , wherein the insert has a substantially teardrop shape.
7. The removable ball of the foot insert according to claim 1 , wherein each of said spring walls is formed in a generally sinusoidal wave shape.
8. The removable ball of the foot insert according to claim 7 , wherein said plurality of spring walls are formed in substantially parallel, spaced-apart relation.
9. The removable ball of foot insert according to claim 8 , wherein a spacing between adjacent ones of said spring walls is greater than the width of said spring walls.
10. The removable ball of foot insert according to claim 7 wherein said generally sinusoidal wave shaped spring walls is arranged in generally curved relation wherein the apex of curvature points generally at the center of the insert.