US20020144431A1 - Methods of manufacturing shoe soles - Google Patents

Methods of manufacturing shoe soles Download PDF

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Publication number
US20020144431A1
US20020144431A1 US10/092,739 US9273902A US2002144431A1 US 20020144431 A1 US20020144431 A1 US 20020144431A1 US 9273902 A US9273902 A US 9273902A US 2002144431 A1 US2002144431 A1 US 2002144431A1
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US
United States
Prior art keywords
sole
support element
midsole
support
based material
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.)
Abandoned
Application number
US10/092,739
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English (en)
Inventor
Klaus Knoerr
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.)
Adidas International BV
Original Assignee
Adidas International BV
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Filing date
Publication date
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Application filed by Adidas International BV filed Critical Adidas International BV
Assigned to ADIDAS INTERNATIONAL B.V. reassignment ADIDAS INTERNATIONAL B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KNOERR, KLAUS
Publication of US20020144431A1 publication Critical patent/US20020144431A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14—Multilayered parts
    • B29D35/142—Soles
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts

Definitions

  • the present invention relates to a sole for an article of footwear, in particular a midsole with a support element for athletic shoes, wherein the midsole and the support element are made from a common polymer-based material and each exhibits a different mechanical property. Furthermore, the present invention relates to methods of manufacturing the sole.
  • Conventional shoe soles typically have a three-layered structure consisting of an outsole, a midsole, and an inner sole.
  • the outsole gives the shoe an outer ground-engaging profile that meets certain requirements for the specific activity for which the shoe is intended.
  • a the outsole may be made of a non-abrasive material to assure high wear resistance and a long working life of the sole.
  • the midsole is often made of a foamed material, for example, elastomers with different densities. Because of the midsole's ability to deform resiliently, the midsole absorbs or dampens mechanical impacts that are generated during running and are transmitted to the body of a wearer via the shoe. The damping of these mechanical impacts can be supported by the integration of damping elements of different construction.
  • the midsole may be adapted to receive stability or support elements that are made of lightweight and stable materials and support the foot during running. The support element supports the running motion of the wearer, because of its selective adjustable flexibility.
  • a further disadvantage is that the weight of the shoe is increased by the use of adhesives. Furthermore, the proper alignment of sole components to each other can be a difficult and expensive process. If the sole components are not optimally aligned, the shoe is uncomfortable to wear and does not perform as expected.
  • U.S. Pat. No. 4,816,345 discloses connecting a rubber outsole and a foamed midsole. Both elements are connected by heating while contacting each other. As stated in the reference, this method does not involve a co-vulcanization process.
  • the connection of thermoplastic polymers and rubber by co-vulcanization is disclosed in U.S. Pat. No. 4,921,762, the disclosure of which is hereby incorporated herein by reference in its entirety.
  • peroxidic vulcanization agents and vulcanization activators are added to the rubber.
  • an object of the present invention to provide a method for manufacturing and connecting sole elements that is less time-consuming and less expensive compared to conventionally known methods. It is a further object of the present invention to provide a low-cost sole that comprises additional support elements in the midsole and to provide a shoe with such a sole.
  • the present invention relates to a low-cost method of manufacturing a sole element, particularly for athletic shoes.
  • the shoe sole of the present invention overcomes the disadvantages of known methods for producing shoe soles, because the components of the sole are made from a common polymer-based material and the components are attached to each other without using additional materials, thereby reducing the materials and procedural steps necessary to produce the sole.
  • the components of the sole originate as preforms manufactured by pre-vulcanization, wherein cross-linking agents contained in the preforms are not completely vulcanized. Subsequently, the components of the sole are co-vulcanized in a mold.
  • the invention relates to a method of manufacturing a portion of a sole of an article of footwear.
  • the method includes the steps of providing a sole element and a support element having a common polymer-based material, positioning the sole element and the support element in a mold, and applying at least one of heat and pressure to the mold, thereby attaching the sole element with the support element.
  • the sole element and the support element individually exhibit a different mechanical property.
  • the invention in another aspect, relates to a sole for an article of footwear.
  • the sole includes a sole element and at least one support element.
  • the sole element and the support element are manufactured from a common polymer-based material, each exhibiting a different mechanical property.
  • the sole element and the at least one support element are attached by co-vulcanization.
  • the invention relates to an article of footwear including an outsole, an inner sole, an upper, and a midsole including a support element.
  • the midsole and the support element are manufactured from a common polymer-based material, each exhibiting a different mechanical property.
  • the midsole and the support element are attached by co-vulcanization.
  • the sole element may be manufactured from ethylene vinyl acetate (“EVA”).
  • EVA ethylene vinyl acetate
  • the support element can also be manufactured from EVA.
  • the support element includes a vinyl acetate content of about 18% to about 25%, at least one peroxide, and a co-agent.
  • the co-agent may be an acrylate or an isocyanate.
  • the sole element includes a vinyl acetate content of about 18% to about 27%.
  • the sole element may also include a filler, at least one peroxide, and a blowing agent for foaming the sole element in the mold.
  • the different mechanical properties that the sole element and the support element exhibit can be hardness, stiffness, resiliency, or compliancy.
  • the sole element, the support element, or both are formed from a partially vulcanized preform.
  • the sole element and the support element can be applied to each other and co-vulcanized to permanently attach them.
  • the support element can have a hardness of about Shore A 80 to 95 to a hardness in the Shore D range.
  • FIG. 1 is a schematic partial cross-sectional view of an article of footwear
  • FIG. 2 is a schematic top view of a portion of a sole in accordance with the invention.
  • FIG. 3 is a flow chart illustrating the various steps of a method of producing a sole in accordance with the invention.
  • FIG. 4 is a flow chart illustrating the various steps of another method of producing a sole in accordance with the invention.
  • a sole 14 of an article of footwear 10 includes an outsole 16 , a midsole 18 , and an inner sole 20 .
  • the midsole 18 may be supplemented by one or more additional structural support elements to provide a structural frame, since the midsole 18 is typically made of damping foam.
  • FIG. 2 depicts a sole 22 in accordance with the invention.
  • the sole 22 could be an outsole, a midsole, or an inner sole.
  • the sole 22 shown is a midsole, including a sole element 24 and a support element 26 .
  • the support element 26 can be essentially any size or shape, and the sole 22 can include a plurality of support elements 26 . The size, shape, and number of support He elements 26 are chosen to suit a particular application.
  • the sole 22 can be made of EVA.
  • EVA is based on a vinyl-acetate (VA) content of about 18% to about 25%.
  • EVA can include fillers, for example, silicon-dioxide (SiO 2 ) or titanium-dioxide (TiO 2 ), as well as cross-linking agents and processing promoters.
  • Cross-linking agents include, for example, peroxides.
  • co-agents can be added to the material to harden the material during vulcanization. Such co-agents include, for example, acrylates and isocyanates. If the EVA is to be foamed, a blowing agent can also be added to the initial material mixture.
  • Support elements are typically made of plastics having high mechanical stability as compared to the properties of the midsole materials. Typical support elements are made from thermoplastic polyether block amides, such as the Pebax® brand sold by Elf Atochem, or thermoplastic polyurethane (TPU).
  • support elements 26 in accordance with the invention are made of the same common polymer-based material as that of the sole element 24 , in this case EVA, but have different mechanical properties than the common polymer-based material of the sole element 24 . The different mechanical properties are at least in part determined by the degree of cross-linking of the contained macromolecular substances.
  • FIG. 3 is a flow chart illustrating the various steps of a method in accordance with the invention.
  • the method includes the step of providing a sole element and a support element 32 , positioning the sole element and support element within a mold 34 , and an attachment step 36 , all of which are described in greater detail hereinbelow.
  • FIG. 4 is a flow chart illustrating the various steps of another method in accordance with the invention.
  • the method includes one or more manufacturing steps 42 , 44 for producing a sole element preform and a support element preform, a positioning step 46 for positioning the sole element preform and support element preform within a mold, and a co-vulcanization step 48 , all of which are also described in greater detail hereinbelow.
  • the sole element 24 and the support element(s) 26 are typically initially manufactured as separate preforms.
  • the independent manufacture of the preforms allows for the adjustment and tailoring of the different mechanical properties of the final processed sole element 24 and support element 26 .
  • the manufacture of the preforms of the support element 26 and the sole element 24 is carried out based on a common polymer-based material, such as EVA.
  • the support element 26 and the sole element 24 are similar in view of their polymer-basis, but do not have corresponding final structure or performance characteristics.
  • the material mixture of the sole element preform and the support element preform can be supplemented by the addition of blowing agents, peroxides, and fillers, as desired.
  • peroxides and fillers include, for example, di-comyl-peroxide as a peroxide and silicic acid as a filler.
  • the added peroxides serve for cross-linking the polymer-based material.
  • the preforms of the sole element 24 and the support element 26 can differ in their mechanical properties. Starting from the same polymer-based material, for example EVA, the preforms of the sole element 24 and the support element 26 are manufactured in different ways in order to adjust differently the mechanical properties of each. This production is carried out by pre-vulcanization.
  • the sole element 24 includes EVA having a vinyl acetate content of about 5% to about 35%, preferably about 15% to about 30%, and more preferably about 18% to about 27%.
  • the sole element 24 further includes the above-mentioned filler(s) and peroxide(s).
  • a blowing agent can be added, so that the sole element preform can be shaped later in a mold as a finished foam.
  • the above composition is pre-vulcanized for adjustment of the mechanical properties of the sole element preform and for the provision of the initial shape thereof.
  • the pre-vulcanization step is typically carried out at temperatures of about 155° C. to about 170° C. Compared to conventional vulcanization, pre-vulcanization requires a shortened time-period.
  • the pre-vulcanization causes a certain limited degree of cross-linking in the EVA, whereby the mechanical properties of the sole element preform are adjusted or controlled.
  • the support element 26 includes EVA having a vinyl acetate content of about 5% to about 35%, preferably about 15% to about 30%, and more preferably about 18% to about 25%.
  • Peroxides and fillers are added, as discussed hereinabove.
  • co-agents can be added to the material mixture for hardening the material during vulcanization. Acrylates or isocyanates are examples of such co-agents.
  • typically no blowing agent is added to the material mixture so that the support element 26 is finished as a solid, not a foam.
  • the above composition is pre-vulcanized for adjustment of the mechanical properties of the support element preform and for the provision of the shape.
  • the pre-vulcanization is usually carried out at temperatures of about 155° C. to about 170° C.
  • a higher degree of cross-linking is obtained to achieve certain mechanical properties.
  • These mechanical properties can include, for example, a greater stiffness and hardness, as compared to the sole element preform.
  • the support element preforms can have a hardness of about Shore A 80-95 or greater.
  • further additives for example, di- or trimodal acrylate, it is possible to produce a support element 26 having a hardness in the range of Shore D.
  • the Shore hardness is determined according to ISO-standard 868-1985 or DIN-standard 53505.
  • this difference can be quantified as a different value or degree of the same property.
  • the sole element 24 can have a certain value of hardness, while the support element 26 can have a different, greater value of hardness.
  • the mechanical properties of the support element 26 correspond to the hardness values of Pebax® and TPU, which are typically used for the manufacture of known support elements; however, these materials are expensive and cannot be processed optimally with respect to their outer appearance and incorporation in a sole.
  • the support element preforms are pre-vulcanized and subsequently cut into one or more pieces of the appropriate shape.
  • the preform shape can vary according to the function of the support element 26 .
  • elongated structures or V-shaped structures whose configuration support the flexibility of the sole 22 , are possible.
  • support elements 26 having a comparatively large surface area or volume can also be produced and positioned adjacent a medial or a lateral side of the sole 22 to correctively support defects or malformations in the bone structure of a wearer's foot.
  • the aesthetic design of the preforms can be modified after manufacture by means of silk screen printing.
  • the smooth surface quality of the support element preforms made from EVA it is possible to fashion the preforms, as desired, without great expense by means of a silk screen printing process. In so doing, it is possible to adapt the colored surface design of these portions of the sole 22 to the upper and/or the whole sole of the later produced shoe.
  • films or foils used for fashioning TPU elements are relatively complicated to apply and expensive with respect to their manufacture.
  • the preforms of the support element 26 and the sole element 24 have been produced at from the common polymer-based material, they are arranged in a mold having a cavity that determines the final sole shape.
  • the support element preform can be positioned on a lower side of the mold and the sole element preform arranged above the support element preform.
  • heat and/or pressure is applied to the preforms within the mold. The heat and/or pressure causes further shaping and attachment of the sole element preform and the support element preform, as well as a hardening of the support element preform.
  • this process of attachment can be referred to as co-vulcanization, where a cross-linking between the common polymer-based material of the sole element preform and the support element preform occurs.
  • the co-vulcanization is performed at temperatures of about 155° C. to about 170° C.
  • the connection between the sole element 24 and the support element 26 results from the peroxides in the materials. These peroxides are not completely vulcanized during the step of pre-vulcanization during the manufacture of the sole element preform and the support element preform.
  • the peroxides are cross-linking agents that principally enable the vulcanization of the polymer-based material. Therefore, the sole element 24 and the support element 26 are attached to each other without additional material or steps, for example, adhesives, reactive functional groups being added to the polymer-based material, or mechanical fastening.
  • the above-mentioned blowing agent contained in the sole element preform is activated by the heat and/or pressure applied to the mold.
  • the sole element preform is foamed and thereby enlarges its volume, being pressed into the predetermined shape of the mold cavity and a sole element 24 is formed.
  • the sole element preform and the support element preform are permanently attached to each other.
  • the support element preform is hardened during this process without substantially changing its shape and finally forms a support element 26 .
  • a substantial advantage of this process is that a permanent connection between the sole element 24 and the support element 26 is provided without adding other materials to the basic material of the sole element preform, the support element preform, or both.
  • a sole 22 including a sole element 24 and a support element 26 is produced in accordance with the invention, where the preforms are made entirely of the common polymer-based material and the support element 26 is attached to the sole element 24 only by the application of pressure and/or heat.
  • the sole 22 for example a midsole, an outsole, an inner sole, and an upper can be connected to the midsole by conventional methods, such that a shoe in accordance with the invention is produced
  • the above-described manufacturing process has substantial advantages over known methods. For example, it is not necessary to attach the support element 26 and the sole element 24 with an adhesive. Eliminating the use of adhesives is of increasing importance in reducing environmental impact. Also, using an adhesive can lead to the sole losing flexibility due to the curing of the adhesive. Further, a separate step of shaping the midsole to have an exact fit to the support element 26 is eliminated. The exact fit of the support element 26 in the sole element 24 follows from the method according to the invention. In addition, misalignment of the sole element 24 and the support element 26 during cementing in place is prevented. The additional procedural steps required to position a support element in a sole element and apply an adhesive are also eliminated.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
US10/092,739 2001-03-08 2002-03-07 Methods of manufacturing shoe soles Abandoned US20020144431A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10111229.7 2001-03-08
DE10111229A DE10111229C5 (de) 2001-03-08 2001-03-08 Sohlenelement mit Unterstützungselement, Verfahren zu seiner Herstellung und Schuh mit Sohlenelement

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US20020144431A1 true US20020144431A1 (en) 2002-10-10

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US10/092,739 Abandoned US20020144431A1 (en) 2001-03-08 2002-03-07 Methods of manufacturing shoe soles

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US (1) US20020144431A1 (de)
EP (1) EP1238790B1 (de)
JP (1) JP2002272504A (de)
AT (1) ATE363983T1 (de)
DE (2) DE10111229C5 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040028929A1 (en) * 2002-08-12 2004-02-12 Shu-Jen Chang Secondary vulcanization structure of a rubber product graph
US20080282579A1 (en) * 2006-12-07 2008-11-20 Callaway Golf Company Chemically-treated Outsole Assembly for a Golf Shoe
US20090145005A1 (en) * 2007-09-06 2009-06-11 New Balance Athletic Shoe, Inc. Shoe sole and shoe for midfoot striker
US20100031535A1 (en) * 2008-08-05 2010-02-11 Gregory Ross Leedy Printed sole for a shoe and method of making
US20120060305A1 (en) * 2010-09-13 2012-03-15 Sakurai Sports Mfg. Co., Ltd. Method for manufacturing a one-piece shoe shell of a skate with different widths
US20150143723A1 (en) * 2012-05-31 2015-05-28 Asics Corporation Molded Foam Article, Foamed Sole, and Shoe
US9615625B1 (en) * 2015-09-17 2017-04-11 Wolverine Outdoors, Inc. Sole assembly for article of footwear
US20170297287A1 (en) * 2016-04-19 2017-10-19 Eefoam Materials Co., Ltd. Production method of glueless pasted integrally modeling shoe sole
USD825153S1 (en) 2017-02-02 2018-08-14 Piga Inc. Soft sole footwear with adjustable plantar arch support
US20180271210A1 (en) * 2015-09-18 2018-09-27 Asics Corporation Shoe sole member and shoe
USD830676S1 (en) * 2018-02-09 2018-10-16 Nike, Inc. Shoe
USD841959S1 (en) 2017-03-14 2019-03-05 Wolverine Outdoors, Inc. Footwear sole
USD842596S1 (en) 2017-03-14 2019-03-12 Wolverine Outdoors, Inc. Footwear sole
US11399590B2 (en) 2020-02-21 2022-08-02 Nike, Inc. Sole structure for article of footwear
EP4116074A1 (de) * 2021-07-05 2023-01-11 Nora Systems GmbH Verfahren zur herstellung eines gegenstandes, mit einem mehrere elemente aufweisenden elastisch komprimierbaren verbundkörper

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008004404A1 (de) 2008-01-14 2009-07-23 Ockenfels Gmbh Schuhsystem, vorzugsweise zur Herstellung eines kompletten Schuhs mit in einem Absatzfleck auslaufenden Absatz, sowie daraus hergestellter Schuh, insbesondere Damenschuh
DE102024111995A1 (de) * 2024-04-29 2025-10-30 Adidas Ag Sohle für einen Laufschuh

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US4511627A (en) * 1981-10-07 1985-04-16 Bridgestone Tire Company Limited Sandwich glasses
US5141578A (en) * 1990-11-10 1992-08-25 Yang Kuo Nan EVA insole manufacturing process
US6061929A (en) * 1998-09-04 2000-05-16 Deckers Outdoor Corporation Footwear sole with integrally molded shank

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DE3606473A1 (de) * 1986-02-28 1987-09-03 Huels Chemische Werke Ag Bauteile aus polyphenylenethern und elastomeren, thermoplastisch verarbeitbaren styrolhaltigen blockcopolymeren sowie verfahren zu ihrer herstellung
DE3737891A1 (de) * 1987-11-07 1989-05-18 Huels Chemische Werke Ag Verfahren zur herstellung eines chemischen verbundes zwischen formmassen auf basis von polyphenylenethern einerseits und peroxidvulkanisierten ep(d)m-kautschuken andererseits
US5318645A (en) * 1993-02-22 1994-06-07 Yang Kuo Nan EVA insole manufacturing process
US6026599A (en) * 1996-05-29 2000-02-22 Blackwell; Terry Dean Pseudo-planar insole insert
DE19904744B4 (de) * 1999-02-05 2005-11-10 Adidas International Marketing B.V. Schuh
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US4511627A (en) * 1981-10-07 1985-04-16 Bridgestone Tire Company Limited Sandwich glasses
US5141578A (en) * 1990-11-10 1992-08-25 Yang Kuo Nan EVA insole manufacturing process
US6061929A (en) * 1998-09-04 2000-05-16 Deckers Outdoor Corporation Footwear sole with integrally molded shank

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040028929A1 (en) * 2002-08-12 2004-02-12 Shu-Jen Chang Secondary vulcanization structure of a rubber product graph
US20080282579A1 (en) * 2006-12-07 2008-11-20 Callaway Golf Company Chemically-treated Outsole Assembly for a Golf Shoe
US7845097B2 (en) * 2006-12-07 2010-12-07 Callaway Golf Company Chemically-treated outsole assembly for a golf shoe
US20110072687A1 (en) * 2006-12-07 2011-03-31 Callaway Golf Company Chemically-treated Outsole Assembly for a Golf Shoe
US8087189B2 (en) * 2006-12-07 2012-01-03 Callaway Golf Company Chemically-treated outsole assembly for a golf shoe
US20090145005A1 (en) * 2007-09-06 2009-06-11 New Balance Athletic Shoe, Inc. Shoe sole and shoe for midfoot striker
US8166672B2 (en) * 2007-09-06 2012-05-01 New Balance Athletic Shoe, Inc. Shoe sole and shoe for midfoot striker
US20100031535A1 (en) * 2008-08-05 2010-02-11 Gregory Ross Leedy Printed sole for a shoe and method of making
US20120060305A1 (en) * 2010-09-13 2012-03-15 Sakurai Sports Mfg. Co., Ltd. Method for manufacturing a one-piece shoe shell of a skate with different widths
US8778251B2 (en) * 2010-09-13 2014-07-15 Sakurai Sports Mfg. Co., Ltd. Method and apparatus for manufacturing one-piece shoe shells having different widths
US20150143723A1 (en) * 2012-05-31 2015-05-28 Asics Corporation Molded Foam Article, Foamed Sole, and Shoe
US10113045B2 (en) * 2012-05-31 2018-10-30 Asics Corporation Molded foam article, foamed sole, and shoe
US9615625B1 (en) * 2015-09-17 2017-04-11 Wolverine Outdoors, Inc. Sole assembly for article of footwear
US10271614B2 (en) 2015-09-17 2019-04-30 Wolverine Outdoors, Inc. Sole assembly for article of footwear
US20180271210A1 (en) * 2015-09-18 2018-09-27 Asics Corporation Shoe sole member and shoe
US10856604B2 (en) * 2015-09-18 2020-12-08 Asics Corporation Shoe sole member and shoe
US20170297287A1 (en) * 2016-04-19 2017-10-19 Eefoam Materials Co., Ltd. Production method of glueless pasted integrally modeling shoe sole
USD825153S1 (en) 2017-02-02 2018-08-14 Piga Inc. Soft sole footwear with adjustable plantar arch support
USD841959S1 (en) 2017-03-14 2019-03-05 Wolverine Outdoors, Inc. Footwear sole
USD842596S1 (en) 2017-03-14 2019-03-12 Wolverine Outdoors, Inc. Footwear sole
USD830676S1 (en) * 2018-02-09 2018-10-16 Nike, Inc. Shoe
US11399590B2 (en) 2020-02-21 2022-08-02 Nike, Inc. Sole structure for article of footwear
EP4116074A1 (de) * 2021-07-05 2023-01-11 Nora Systems GmbH Verfahren zur herstellung eines gegenstandes, mit einem mehrere elemente aufweisenden elastisch komprimierbaren verbundkörper

Also Published As

Publication number Publication date
DE10111229C5 (de) 2009-01-29
DE60220462D1 (de) 2007-07-19
EP1238790A1 (de) 2002-09-11
DE10111229C1 (de) 2002-11-21
DE60220462T2 (de) 2008-02-14
JP2002272504A (ja) 2002-09-24
EP1238790B1 (de) 2007-06-06
ATE363983T1 (de) 2007-06-15

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