A cushioning sole for use in contact with a foot, the foot being characterized by a specific shape relief and pressure map. The cushioning structure comprises a central layer of a rubber-like thermoplastic material having an upper surface devised to be in contact with the foot and having a shape relief conforming the specific shape relief of the foot, and a bottom surface opposite the upper surface. The cushioning sole further comprises a layout of space-apart anatomical pressure-receiving fingers made integrally with the central layer and protruding from at least one of the upper surface and bottom surface. Each of the pressure-receiving fingers has a predetermined height and diameter. The layout, the height and the diameter of the pressure-receiving fingers are determined in function of the physical characteristics of the rubber-like thermoplastic material and the specific pressure map of the foot, whereby the overall pressure-receiving fingers suit the specific pressure map of the foot.
CROSS REFERENCE TO RELATED APPLICATIONS
Applicant claims priority under 35 U.S.C. .sctn.119 of Canadian Application No. 2,231,802 filed Apr. 15, 1998. Applicant also claims priority under 35 U.S.C. .sctn.120 of PCT/CA99/00327 filed Apr. 15, 1999. The international application under PCT article 21(2) was published in English.
A CAD apparatus is used to design a three-dimensional model having at least one part made of a material which changes shape depending on assembling conditions. The CAD apparatus automatically obtains structural dimensions of the part in a deformed state after assembly, from structural dimensions of the part before the assembly, based on parameters including at least the assembling conditions. The CAD apparatus then creates the three-dimensional model using the structural dimensions of the part in the deformed state.
The present invention addresses an elastomeric sole having a sidewall with a height less that 0.625 inch, forming a cavity and a horizontally disposed rim extending from the top surface of the sidewall. The sole includes at least two upstanding regions extending upwardly from the cavity lower surface, each region formed from elastomer and having a different effective modulus of elasticity. The invention also includes the combination of an elastomeric sole and an upper and a method for sewing an elastomeric sole to an upper by means of a converted sewing machine.
Disclosed is a massaging and reflexology system for an article of footwear comprising a core body generally configured in the shape of a shoe insole, a plurality of cups disposed on a top surface of the shoe insole, and a respective bump or pressure nub disposed within each of the cups. The cups may be disposed on a bottom surface of the core body. The shoe insole may define toe, intermediate, heel and arch portions, or any combination thereof. Each cup may define a substantially concave surface projecting outwardly from the top surface with the cup perimeters being generally circular. The pressure nubs may be centrally disposed on the concave surface of each one of the cups on the top surface. The core body, the cups, the cup spacers and the pressure nubs may be formed as a unitary structure of resilient, elastomeric material such as silicone gel.
A shoe having an upper and a sole, the sole including a wear sole and an intermediary sole. The intermediary sole includes an upper surface and a bottom surface, a rear zone provided to support the user's heel zone, and a front zone provided to support the user's forefoot zone. In the front zone, the upper surface includes a plurality of top protuberances and the bottom surface includes a plurality of bottom protuberances, each top protuberance of at least one portion of the plurality of top protuberances is vertically aligned with a bottom protuberance so as to constitute shock-absorbing cylindrical studs that are linked to one another only by their central portion.
The present invention addresses an elastomeric sole having a sidewall with a height less that 0.625 inch, forming a cavity and a horizontally disposed rim extending from the top surface of the sidewall. The sole includes at least two upstanding regions extending upwardly from the cavity lower surface, each region formed from elastomer and having a different effective modulus of elasticity. The invention also includes the combination of an elastomeric sole and an upper and a method for sewing an elastomeric sole to an upper by means of a converted sewing machine.
