Gel insoles with lower heel and toe recesses having thin spring walls
First Claim
1. A removable insole for insertion into footwear, comprising a lower layer made from viscoelastic gel and including:
- a lower surface;
an upper surface;
at least one portion of a toe portion and a heel portion formed from said viscoelastic gel, at least one recess in the lower surface of said at least one of a toe portion and a heel portion, each said recess having a peripheral side wall and a top wall, and a plurality of spaced apart spring walls formed from said viscoelastic gel in each said recess, said spring walls being connected with said top wall of a respective said recess, said spring walls having lower edges generally coplanar with a lower surface of said at least one of a toe portion and a heel portion which is in surronding relation to the respective said recess, wherein each of said spring walls is formed in a generally sinusoidal wave shape, wherein said spring walls provide a spring with less dampening energy absorption relative to the remainder of the lower layer formed from said viscoelastic gel when a force is applied to said lower layer, and wherein a spacing between adjacent ones of said spring walls is greater than the width of said spring walls.
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Accused Products
Abstract
A removable insole for insertion into footwear, includes a lower layer made of a viscoelastic gel and including a lower surface, an upper surface, a toe portion, a heel portion and a medial arch portion interconnecting the toe portion and the heel portion, a first recess formed in the lower surface of the toe portion and a second recess formed in the lower surface of the heel portion, each recess having a peripheral side wall and a top wall, a plurality of thin, parallel, spaced apart sinusoidal wave shaped spring walls formed from the viscoelastic gel and connected to the top wall and the peripheral side wall in each recess, and the spring walls having lower edges generally coplanar with a lower surface of the toe portion and heel portion which is in surrounding relation to the respective recess; and a top cover secured to the upper surface of the lower layer.
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Citations
15 Claims
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1. A removable insole for insertion into footwear, comprising a lower layer made from viscoelastic gel and including:
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a lower surface;
an upper surface;
at least one portion of a toe portion and a heel portion formed from said viscoelastic gel, at least one recess in the lower surface of said at least one of a toe portion and a heel portion, each said recess having a peripheral side wall and a top wall, and a plurality of spaced apart spring walls formed from said viscoelastic gel in each said recess, said spring walls being connected with said top wall of a respective said recess, said spring walls having lower edges generally coplanar with a lower surface of said at least one of a toe portion and a heel portion which is in surronding relation to the respective said recess, wherein each of said spring walls is formed in a generally sinusoidal wave shape, wherein said spring walls provide a spring with less dampening energy absorption relative to the remainder of the lower layer formed from said viscoelastic gel when a force is applied to said lower layer, and wherein a spacing between adjacent ones of said spring walls is greater than the width of said spring walls. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification