Shoe soles with midsole sides of increased thickness
OwnerFrampton E. Ellis IIIinventor
Life of this patent
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Abstract
A shoe sole having at least one midsole or outer surface portion that is concavely rounded relative to a space inside the shoe adapted to receive an intended wearer's foot. The sole includes a midsole and an outer sole. The midsole extends up the side of the sole to a vertical height above the vertical height of a lowest point of the inner midsole surface. The midsole includes a portion of greatest thickness in a side portion that is greater than a thickness of a second midsole portion located in a middle sole portion of the shoe sole. The combination of the midsole height and thickness with the concavely rounded surface portion together provide improved stability of the shoe sole.
Claims23
A shoe sole construction for a shoe, comprising:
- a sole having a naturally contoured shape defined by a design which conforms to the natural shape of the unloaded foot wherein the theoretically ideal stability plane is determined by the desired shoe sole thickness, which is constant in a frontal plane cross section, and by the natural shape of a foot surface of the individual;
- and
- said naturally contoured shape extends to contours underneath the load-bearing foot and is abbreviated along its sides to essential support and propulsion elements, wherein those elements are combined and integrated into the same discontinuous shoe sole structural elements beneath the foot, which approximate the principal structural elements of a human foot and their natural articulation between elements.
A shoe sole construction for a shoe, comprising:
- a shoe sole which is naturally contoured, paralleling the shape of a foot in order to parallel its natural deformation and made from a material which, when under load and tilting to the side, deforms in a manner which closely parallel that of the foot of its wearer, while retaining nearly the same amount of contact of the shoe sole with the ground as in its upright state.
A shoe sole construction for a shoe, comprising:
- a shoe sole having at least a portion thereof following the contour of a theoretically ideal stability plane, said sole having rounded edges at the finishing edge of the sole after the last flexibility, a layer closest to the foot sole having the most flexibility, and a layer further from the foot sole having the least flexibility.
The shoe sole construction as set forth in claim 12 wherein at least a portion of said sole follows a theoretically ideal stability plane, said sole including a ground-engaging portion opposition to a foot supporting surface of said sole, wherein the curved surface of the side portion of said sole merges with said ground-engaging portion from opposed sides to define a theoretically ideal stability plane.
A shoe sole construction for a shoe, such as a running shoe, comprising:
- a sole having a shoe portion and a contoured edge portion extending along at least a portion of the said sole portion;
- said sole portion including a foot support surface and defined by a thickness;
- said edge portion being defined at least in part by an arc of a curved surface having a radius about equal to the thickness of said sole portion.
Dependencies are inferred from the claim text.