Shoe and associated manufacturing method
View Patent ↗A shoe comprising a sole and an upper, the sole comprising a plantar insert, at least one layer for covering the lower surface of the plantar insert with perimetric edges which substantially protrude outward with respect to the contour of the plantar insert, at least one flap for covering the upper surface of the plantar insert, which also has a perimetric border substantially protruding outward from the contour of the plantar insert. The edge and the border are rigidly coupled to each other and to the upper. The covering layer of the lower surface of the plantar insert can be covered with a base of wear-resistant material.
1. A method for manufacturing a shoe comprising the steps of:
arranging a material for constituting a sole covering layer within a first die that has a first receptacle with a shape that is complementary to a shape of a sole plantar insert, while retaining a perimetric edge of said material so as to protrude from the first receptacle;
performing hot compression with a first plug, which is shaped complementarily to the shape of the first receptacle of said first die, on said covering layer material so as to obtain a preformed covering layer;
removing from the first die and thereafter arranging the preformed covering layer in a second die with a second receptacle;
inserting a compound in a liquid, prior-to-expansion state within said second receptacle over said preformed covering layer, said compound for constituting the plantar insert;
arranging at least one covering flap of a sole above the plantar insert, so that a lateral border of said sole protrudes from a contour of the plantar insert;
performing cold compression, with a second plug, and causing a mutual adhesion of the perimetric edge of the covering layer and of the border of the at least one covering flap, whereby to form an assembly;
extracting from the second die the assembly constituted by the covering layer, the plantar insert, and the at least one flap;
mutually coupling a lower portion of an upper to a perimetric outline of said assembly, said outline being constituted by a coupling of said perimetric edge and of said border; and
rigidly coupling below said assembly a bottom made of wear-resistant material.
2. The method of claim 1 , comprising coupling between said edge and said border by stitching.
3. The method of claim 1 , comprising coupling between said edge and said border by adhesive bonding.
4. The method of claim 1 , comprising coupling between the covering layer, the plantar insert and the at least one covering flap adhesive bonding by interposition of adhesive.
5. The method of claim 1 , comprising coupling between said upper and said sole by stitching.
6. The method of claim 1 , wherein at the end of the fixing step of the upper to the sole, a finishing operation is performed which consists in inserting hot aluminum lasts in order to preform said upper.
7. The method of claim 1 , wherein said first and second dies are provided that comprise first and second receptacles that are suitable to form together left and right soles, the method comprising, after said step for extraction of the assembly from said second die, a step for performing a blanking for dividing the left sole from the right sole.