EP4295720A1 - Sneaker éco-durables - Google Patents

Sneaker éco-durables Download PDF

Info

Publication number
EP4295720A1
EP4295720A1 EP23180361.0A EP23180361A EP4295720A1 EP 4295720 A1 EP4295720 A1 EP 4295720A1 EP 23180361 A EP23180361 A EP 23180361A EP 4295720 A1 EP4295720 A1 EP 4295720A1
Authority
EP
European Patent Office
Prior art keywords
midsole
lining
band
sole
leather
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23180361.0A
Other languages
German (de)
English (en)
Inventor
Pierluigi PERINELLO
Riccardo AGNOLIN
Antonio Battaglia
Alessandra TACCON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Silvateam SpA
Original Assignee
Silvateam SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Silvateam SpA filed Critical Silvateam SpA
Publication of EP4295720A1 publication Critical patent/EP4295720A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B9/00—Footwear characterised by the assembling of the individual parts
    • A43B9/04—Welted footwear
    • A43B9/06—Welted footwear stitched or nailed through
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
    • A43B13/127—Soles with several layers of different materials characterised by the midsole or middle layer the midsole being multilayer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/021—Leather
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/07—Linings therefor

Definitions

  • the present invention relates to a sport shoe, of the type referred to by the term "sneaker,” and pertains to an eco-sustainable sport shoe, made with the use of natural materials, such as leather and hide, and having structural features and mechanical strength similar to those of sport shoes nowadays conventionally made with extensive use of plastics materials.
  • GB 700520 describes a shoe with a welt, made using a system referred to as the Goodyear process; the term "welt” generally refers to a strip of hide that is stitched to the edge of the insole, also attaching the upper and the lining together.
  • the invention provides a shoe structure that does not use a welt and that may be constructed with particularly simple processing with a simple, conventional sewing machine.
  • Another object of the present invention is to provide a sport shoe manufactured totally from natural materials, such as leather and hide or natural rubber, which is amenable to being shredded as is, i.e., without disassembly of the parts, to provide a material that may be composted and ultimately used as an organic fertilizer.
  • natural materials such as leather and hide or natural rubber
  • Another object of the invention is to provide a sport shoe having structural features and mechanical properties that do not penalize its durability, under the same conditions of use, compared to shoes made from conventional plastics materials.
  • Another object of the invention is to provide a sport shoe having a structure and assembly that allows for a significant reduction in the use of synthetic adhesives, which are thermoplastic or thermosetting in nature.
  • the invention pertains to a sport shoe having the features set forth in the claims below, which are an integral and essential part of the present description.
  • the invention also pertains to the process of assembling the shoe.
  • the objects of the aforementioned invention have been achieved by a shoe structure that uses the lining of the upper, made of leather material, as the joining element, via a seam, with the sub-band and a midsole lining.
  • the lining of the upper, the midsole lining and the sub-band are attached to each other, adjacent to their ends facing the sole (bottom end), by an annular seam; between the midsole lining and the midsole a recess is defined, in which an additional midsole element is placed as a filling.
  • the sport shoe which is the subject matter of the invention, comprises an upper 2 made of leather and a lining 4, also made of leather, inside the upper and attached thereto by seams.
  • a reinforcing layer 6, usually of hide, is preferably and optionally interposed between the upper and the lining of the upper, the function of which is to increase the stiffness of the shoe in the toe region.
  • the shoe comprises an external annular band 8 with substantially vertical, and not radial, extension surrounding the bottom of the shoe between the sole 10 and the lower end of the lining of the upper 4, and which, in accordance with the invention, is made of leather material. Adjacent to the band 8, towards the inside of the shoe, there is a sub-band 12 that extends parallel to the band 8.
  • the sub-band 12 is made of leather, preferably, suede leather, and is generally glued to the band, as well as being further attached to the band by a seam 26, described hereinafter.
  • the band 8 extends, in partial overlap with the end of the upper, denoted with 2a, in the toe region of the shoe and with 2b in the heel region, to cover the peripheral edge of a midsole element 14, typically made of hide.
  • the top end of the band 8 is attached to the upper 2 by a seam 16a.
  • the lower end of the upper 2 both in the toe region and in the heel region, is folded over itself and the band 8 extends between the fold of the turned up part and the midsole element 14; the turned up end of the upper is fixed to the sub-band 12 by means of a seam 16b.
  • a reinforcing element 20, adapted to increase the shoe's rigidity is interposed between the sub-band 12 and the lower end, facing the sole, of the lining 4, in the toe region. Similar reinforcing elements 20a and 20b are optionally present in the heel region.
  • midsole is to be understood as including a layered structure comprising a first midsole element 14, preferably of hide, and a second superimposed midsole element 22, preferably of hide, and a midsole lining made of leather 28 superimposed on the second midsole element 22, towards the inside of the shoe.
  • the lining 4 of the upper, adjacent to its end facing the sole 10, is attached, via an annular seam 26, to the sub-band 12 and the lining 28, here defined as the midsole lining, adjacent to its lower peripheral edge 30.
  • the aforesaid midsole lining 28 is shaped and sized so as to define, following its connection by sewing with the sub-band 12 and with the lining of the upper 4, a recess 24 in which, during shoe assembly, a second midsole element 22, preferably of hide, is positioned as a filling.
  • the lining of the midsole 28 is preferably fixed with glue in a limited peripheral annular region to a peripheral region of the aforesaid second midsole element 22, avoiding the presence of glue in the central region of the shoe; similarly, the aforesaid second midsole element 22 is glued to the first midsole element 14 in a limited peripheral annular region, which means that it does not affect the central part of the shoe on which the foot rests.
  • a removable insole which may be formed, for example, by a laminate comprising a top layer of hide and a layer of coir.
  • the shoe also comprises padding elements made of natural expanded material, such as natural boiled wool, including a padding element 34 interposed between the lining and the upper in the tongue part of the shoe and a padding element 36 surrounding the collar region of the shoe, between the upper 2 and the lining 4.
  • the sole 10 is typically made from some natural rubber (Para). However, the use of a hide sole is not ruled out.
  • 40 denotes the rigid shape used in manufacturing to form the shoe.
  • a second subject matter of the invention is the process for producing and assembling a shoe having the features previously outlined and defined in the following claims.
  • This process is characterized by the operation of connecting, by means of a seam, the lining of the upper 4, the lining of the midsole 28 and the sub-band 12, adjacent to their ends facing the sole, the lining of the midsole being shaped and dimensioned so as to define a recess 24 adapted to receive a second midsole element 22 as filling, and then position said second midsole element in the recess and fasten said second midsole element to the lining of the midsole by gluing it in a peripheral region thereof.
  • steps a) to n) are schematically illustrated, by way of example, in Fig. 6 , steps a) to n), and comprise:
  • the construction and structural features of the sport shoe covered by the invention allow the creation of a shoe, formed entirely of natural materials, that has structural features not inferior to conventional sport shoes that make extensive use of plastics materials.
  • the leather materials used are leathers obtained by tanning with natural tannins, particularly chestnut, quebracho, gall, and tara without the use, in pre-tanning and tanning, of aldehydes, aldehyde donor compounds and/or heavy metal salts and/or any metal.
  • a tanning process with plant-extracted tannins, without treatment with aldehydes or metal salts, is described in IT 102021000006233 in the name of Silvateam .
  • This process due to the hygroscopic properties of tannins, also gives the leather the ability to absorb moisture from the foot, creating an especially dry and comfortable environment in the shoe without the formation of unpleasant odors.
  • the shoe covered by the invention in addition to being free of fillers, plastics, or other synthetic polymers, may be made with limited use of thermoplastic or thermosetting adhesives, their use possibly being limited to peripheral regions of limited extension. As a result of these features, the shoe also has improved wicking features, as it is essentially free of components with a barrier function to perspiration.
  • the sport shoe covered by the invention for the purpose of its disposal, may be directly shredded into granules or particles, providing a compostable material that may be used as an organic fertilizer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP23180361.0A 2022-06-22 2023-06-20 Sneaker éco-durables Pending EP4295720A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202200013159 2022-06-22

Publications (1)

Publication Number Publication Date
EP4295720A1 true EP4295720A1 (fr) 2023-12-27

Family

ID=83189111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23180361.0A Pending EP4295720A1 (fr) 2022-06-22 2023-06-20 Sneaker éco-durables

Country Status (1)

Country Link
EP (1) EP4295720A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB237496A (en) * 1924-12-24 1925-07-30 Harry Lyon Improvements in or relating to beaded welting for boots and shoes
GB700520A (en) * 1951-04-19 1953-12-02 Haynes And Cann Ltd Improvements in or relating to boots and shoes, and to the manufacture thereof
US2995839A (en) * 1959-06-15 1961-08-15 Denis W Cronin Light shoe sole assembly
IT202100006233A1 (it) 2021-03-16 2022-09-16 Silvateam S P A Prodotti per la concia di pellami, prodotti preconcianti e loro impiego

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB237496A (en) * 1924-12-24 1925-07-30 Harry Lyon Improvements in or relating to beaded welting for boots and shoes
GB700520A (en) * 1951-04-19 1953-12-02 Haynes And Cann Ltd Improvements in or relating to boots and shoes, and to the manufacture thereof
US2995839A (en) * 1959-06-15 1961-08-15 Denis W Cronin Light shoe sole assembly
IT202100006233A1 (it) 2021-03-16 2022-09-16 Silvateam S P A Prodotti per la concia di pellami, prodotti preconcianti e loro impiego

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