Sole with extensible structure
First Claim
1. Footwear comprising an upper assembled with an outsole and an insole,the outsole having an outsole forepart and an outsole back part, wherein the outsole forepart is relatively deformable transversally as compared to the outsole back part,wherein the outsole comprisesa sole base, wherein a forepart of the sole base is provided with at least one longitudinally oriented opening, said sole base opening being continuous and extending substantially from a toe area substantially to an arch area of the sole base, anda sole base insert mounted to the sole base, wherein the sole base insert is mounted to the sole base so as close said at least one sole base opening, the sole base insert material being relatively deformable transversally as compared to the sole base material, andthe insole comprising an insole forepart and an insole back part, wherein the insole forepart is relatively deformable transversally as compared to the insole back part,wherein the deformable forepart of the insole comprises at least one of(i) a longitudinal slit or longitudinal opening, said insole slit or opening being continuous and extending substantially from a toe area substantially to an arch area of the insole, and(ii) a longitudinal opening, said insole opening being continuous and extending substantially from a toe area substantially to an arch area of the insole, said opening being filled by an insole insert of stretchable material,so that a pressure on lateral edges of the upper applied by a foot inserted in the footwear produces a transversal deformation of the superposed insole and outsole as a whole.
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Accused Products
Abstract
Sole with stretchable structure, a footwear article provided with such a sole and its assembly method.
The invention relates to a footwear sole where the forepart is associated with a stretchable material making it possible to fit differing foot widths easily; it also relates to the footwear equipped with such a sole and the method for mounting this footwear.
It is constituted of a sole base (1) comprising openings (4) in which the lugs (3) of the stretchable part (2) are positioned in a seared manner.
The insole (5) comprises a deformable structure (6) in its forepart. When the wearer'"'"'s foot is put into a footwear article provided with such a complex, it exerts pressure on the edges of the upper (10) thus causing deformation of the sole This ability of deforming the sole avoids feelings of compression of the foot
The device according to the invention is intended in particular for the manufacture of footwear with the ability of adapting to differing foot anatomies.
80 Citations
25 Claims
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1. Footwear comprising an upper assembled with an outsole and an insole,
the outsole having an outsole forepart and an outsole back part, wherein the outsole forepart is relatively deformable transversally as compared to the outsole back part, wherein the outsole comprises a sole base, wherein a forepart of the sole base is provided with at least one longitudinally oriented opening, said sole base opening being continuous and extending substantially from a toe area substantially to an arch area of the sole base, and a sole base insert mounted to the sole base, wherein the sole base insert is mounted to the sole base so as close said at least one sole base opening, the sole base insert material being relatively deformable transversally as compared to the sole base material, and the insole comprising an insole forepart and an insole back part, wherein the insole forepart is relatively deformable transversally as compared to the insole back part, wherein the deformable forepart of the insole comprises at least one of (i) a longitudinal slit or longitudinal opening, said insole slit or opening being continuous and extending substantially from a toe area substantially to an arch area of the insole, and (ii) a longitudinal opening, said insole opening being continuous and extending substantially from a toe area substantially to an arch area of the insole, said opening being filled by an insole insert of stretchable material, so that a pressure on lateral edges of the upper applied by a foot inserted in the footwear produces a transversal deformation of the superposed insole and outsole as a whole.
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19. An article of footwear having lateral and medial sides, said article comprising:
- an upper including an instep portion for covering at least a portion of a wearer'"'"'s foot and an insole portion adapted to underlay a wearer'"'"'s foot, said insole portion comprising a non-stretch portion surrounding an expansion portion disposed longitudinally along said insole portion;
a sole unit including an expansion element disposed longitudinally along said sole unit so as to align with said expansion portion of said insole portion;
wherein said expansion portion and said expansion element have a retracted static condition to provide a narrower width to said article of footwear, and have an expanded, adjustment condition to provide a wider width and an increased internal volume to said article of footwear to cooperatively provide dynamic width adjustment. - View Dependent Claims (20, 21, 22, 23, 24, 25)
- an upper including an instep portion for covering at least a portion of a wearer'"'"'s foot and an insole portion adapted to underlay a wearer'"'"'s foot, said insole portion comprising a non-stretch portion surrounding an expansion portion disposed longitudinally along said insole portion;
Specification