Patent EA-000273-B1 (EA)
Title: Vapor-permeable shoe
Inventor: POLEGATO MARIO
IPC: A43B7/12
Filed: 1996-10-09
Abstract: 1. Vapor-permeable shoe, characterized in that it comprises the following combination of elements: - a vapor-permeable upper (11, 101, 201, 311, 401, 511, 611, 711) that is associated with a vapor-permeable or perforated lining (12, 102, 202, 312, 402, 512, 612, 712); - a tread (13, 103, 203, 313, 403, 503, 603, 702) made of perforated elastomer; - a mid-sole (14, 104, 204, 314, 404) comprising at least one membrane (15, 105, 205, 315, 405, 515, 615, 715) made of waterproof vapor-permeable material that is associated with a lower protective layer (16, 106, 206, 316, 406, 516, 616, 716) made of hydrolysis-resistant, water-repellent, vapor-perneable or perforated material; - a vapor-permeable or perforated insole (17, 107, 207, 317, 407, 517, 617, 717); - a vapor-permeable or perforated filler layer (18, 108, 208, 318, 408, 518, 618, 718) arranged between said insole and said membrane; - the lower part of said upper, said tread, said mid-sole with said membrane being perimetrically sealed in the coupling regions, whereby non-permeable regions are substantially limited to the perimetric regions of the sole. 2. Vapor-permeable shoe according to Claim 1 characterized in that said lining (102) is composite, since it comprises an externally directed layer, constituted by a waterproof and vapor-permeable membrane (109), and an internally directed layer (110), made of leather or vapor-permeable fabric, said lining (102) being larger than said upper (101), the protruding border of said lining being folded upwards and outwards and being glued to the perimetric border of a waterproof and vapor-perineabi e membrane (111) arranged below said insole (107) and associated therewith, the association of both membranes forming a perimetric pocket (112) for sealing against moisture and water. 3. Vapor-permeable shoe according to Claim 1, characterized in that said lining (202) is composite and is welded directly to the tread (203) or to a sealing element (211) that is formed monolithically with said tread (203). 4. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that it comprises a vapor-permeable or perforated tip (319) that is associated with said upper (311) by spot gluing. 5. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that it comprises a vapor-permeable or perforated rear counter (320) that is associated with said upper (311) by spot gluing. 6. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that said lining (312) and said upper (311) are associated one another by spot gluing. 7. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that said upper (311) and said insole (317) are associated and sealed one another by means of adhesive arranged along a perimetric region, so as to allow full transpiration in the central region. 8. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that said membrane (315) and said protective layer (316) are associated by spot gluing with hydrolysis-resistant adhesive or with calendered powders. 9. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that said protective layer (316) is made of non-woven fabric or needle-loomed felt. 10. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that the association between said protective layer (316) and said tread (313) is provided by spot gluing with a hydrolysis-resistant adhesive. 11. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that said tread (313) and said membrane (315) are sealed and associated one another by gluing with hydrolysis-resistant adhesives or by high-frequency welding or by overlap injection-molding of a material that is compatible with the material of said tread, so as to form a perimetric seal. 12. Vapor-permeable shoe according to one or more of the preceding Claims, characterized in that said upper (311) and said insole (317) are associated by means of stitches. 13. Vapor-permeable shoe according to Claim 1, characterized in that said lower protective layer (316) is thinner or not present in the perimetric coupling regions where said tread (313) and said membrane (315) are sealed. 14. Vapor-permeable shoe according to Claim 13, characterized in that said tread (313) has a raised border (313a) that contains said mid-sole (314). 15. Vapor-permeable shoe according to Claim 13, characterized in that said filler layer (318) is made of vapor-permeable felt. 16. Vapor-permeable shoe according to one or more of Claims 13 to 15, characterized in that said upper (311) and said insole (317) are associated one another by gluing or by means of stitches along a perimetric band. 17. Vapor-permeable shoe according to one or more of Claims 13 to 16, characterized in that said membrane (315) and said protective layer (316) are associated by spot gluing with hydrolysis-resistant adhesive or by calendered powders. 18. Vapor-permeable shoe according to one or more of Claims 13 to 17, characterized in that said protective layer (316) is made of non-woven fabric or needle-loomed felt. 19. Vapor-permeable shoe according to one or more of Claims 13 to 18, characterized in that the association and seal between said tread (313) and said membrane (315) is provided by gluing with hydrolysis-resistant adhesives or by high-frequency welding or by overlap injection-molding of a material that is compatible with the material of said tread, so as to form a perimetric seal. 20. Shoe according to Claim 13, characterized in that said tread comprises two monolithic elements that are formed by successive infection-molding operations, a first element being arranged substantially below said membrane and a second element being perimetric. 21 Vapor-permeable shoe according to Claim 1, characterized in that said vapor-perneable or perforated filler layer (718) arranged between said insole (717) and said membrane (715) has perimetric dimensions that are smaller than those of said membrane (715), said tread (702) and said membrane (715) being sealed in the perimetric coupling regions. 22. Method for manufacturing the shoe according to Claim 1, comprising: - providing a vapor-permeable upper (11, 101, 201, 311, 401, 511, 611, 711) that is associated with a vapor-permeable or perforated lining (12, 102, 202, 312, 402, 512, 612, 712); - providing a tread (13, 103, 203, 313, 403, 503, 603, 702) made of perforated elastomer; - providing at least one membrane (15, 105, 205, 315, 405, 515, 615, 715) made of waterproof vapor-permeable material that is associated with a lower protective layer (16, 106, 206, 316, 406, 516, 616, 716) made of hydrolysis-resistant, water-repellent, vapor-perneable or perforated material; - providing a vapor-permeable or perforated insole (17, 107, 207, 317, 407, 517, 617, 717); - providing a vapor-permeable or perforated filler layer (18, 108, 208, 318, 408, 518, 618, 718) and arranging said filler between said insole and said membrane; the lower part of said upper, said tread, said mid-sole with said membrane being perimetrically sealed in the coupling regions; - perimemetrically sealing in the coupling regions, so as to substantially limit the non-vapor-permeable regions to the perimetric regions of the sole, the lower part of said upper, said tread, and said mid-sole with said membrane. 23. Method according to Claim 22 for manufacturing the shoe set forth in Claim 13, comprising: - fitting said upper, together with an insole and a lining, on the last of a mold for infection-molding; - applying, in a downward region, said filler layer with a membrane and a protective layer: - closing the mold and injecting said perforated tread to seal the entire assembly with respect to to the upper at said perimetric coupling regions. 24. Method according to Claim 22 for manufacturing the shoe set forth in Claim 20, comprising: - molding an insert with a first perforated tread element, a membrane, a protective layer, and a filler layer madeof perforated elastomer; - inserting said insert in a mold and fitting the upper, with the insole and the lining, on the last; - molding the second tread element and sealing the entire assembly at said perimetric coupling regions. 25. Method according to Claim 22 for manufacturing the shoe set forth in Claim 21, comprising: - fitting said upper, together with an insole and a lining, on the last of a mold for injection-molding; - applying, in a downward region, said filler layer, which has smaller dimensions, together with a membrane, a protective layer, and optional pre-molded parts of a perforated tread; - closing the mold and injection-molding said tread or the remaining tread parts so as to seal the entire assembly to the upper. 26. Method for producing a shoe according to clam 23 or 25, characterized in that auxiliary adhesives, adapted to seal the surfaces one another, are provided to contribute to the sealing action.