EP3466291B1 - Sohle für einen schuh - Google Patents

Sohle für einen schuh Download PDF

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Publication number
EP3466291B1
EP3466291B1 EP18181579.6A EP18181579A EP3466291B1 EP 3466291 B1 EP3466291 B1 EP 3466291B1 EP 18181579 A EP18181579 A EP 18181579A EP 3466291 B1 EP3466291 B1 EP 3466291B1
Authority
EP
European Patent Office
Prior art keywords
midsole
sole
shoe
expanded
outsole
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.)
Active
Application number
EP18181579.6A
Other languages
English (en)
French (fr)
Other versions
EP3466291A1 (de
Inventor
John Whiteman
Angus Wardlaw
Heiko Schlarb
James Michael Tarrier
Paul Leonard Michael Smith
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 AG
Original Assignee
Adidas AG
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 Adidas AG filed Critical Adidas AG
Priority to EP20206640.3A priority Critical patent/EP3804551A1/de
Publication of EP3466291A1 publication Critical patent/EP3466291A1/de
Application granted granted Critical
Publication of EP3466291B1 publication Critical patent/EP3466291B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A43B1/00—Footwear characterised by the material
    • A43B1/0009—Footwear characterised by the material made at least partially of alveolar or honeycomb material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/02—Footwear characterised by the material made of fibres or fabrics made therefrom
    • A43B1/04—Footwear characterised by the material made of fibres or fabrics made therefrom braided, knotted, knitted or crocheted
    • 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
    • A43B13/122—Soles with several layers of different materials characterised by the outsole or external layer
    • 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
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials

Definitions

  • sole constructions are known from the prior art, e.g. from DE 102 44 433 B4 and DE 102 44 435 B4 , which can absorb in a way that does not strain the joints a part of the shear forces occurring during running.
  • a disadvantage of these constructions consists in the fact that such soles are composed of several independent individual parts, have a fairly high weight and are expensive and complex in manufacture.
  • the particles of expanded material comprise one or more of the following materials: expanded ethylene-vinyl-acetate (eEVA), expanded thermoplastic urethane (eTPU), expanded polypropylene (ePP), expanded polyamide (ePA), expanded polyether block amide (ePEBA), expanded polyoxymethylene (ePOM), expanded polystyrene (PS), expanded polyethylene (ePE), expanded polyoxyethylene (ePOE), expanded ethylene propylene diene monomer (eEPDM).
  • eEVA expanded ethylene-vinyl-acetate
  • eTPU expanded thermoplastic urethane
  • ePP expanded polypropylene
  • ePA expanded polyamide
  • ePEBA expanded polyether block amide
  • ePOM expanded polyoxymethylene
  • PS expanded polystyrene
  • ePE expanded polyethylene
  • ePOE expanded polyoxyethylene
  • eEPDM expanded ethylene propylene diene monomer
  • the cushioning element allows a shearing motion of a lower sole surface relative to an upper sole surface in longitudinal direction of more than 1 mm, preferably more than 1.5 mm and particularly preferably more than 2 mm. These values offer a good balance between a sufficient stability of the shoe sole and a high absorption capacity for horizontal shear forces.
  • control element is laser-cut from a blank.
  • control element can be provided in form as an outsole, or part of an outsole, which is laser-cut from a blank.
  • the blank may be provided as a material layer comprising, for example, one or more of the materials suitable for the manufacture of a control element/outsole mentioned above. It is also possible, for example, that the blanks are provided in different sizes, thickness, with predefined holes, bulges, etc. and they may also comprise the general outline of a foot or sole.
  • control element 130 is provided as an outsole or as a part of an outsole.
  • the control element 130 here preferably comprises one or more of the following materials: rubber, non-expanded thermoplastic urethane, textile materials, PEBA as well as foils or foil-like materials.
  • the cushioning element 110 and the control element 130 are manufactured from materials of a common material class, in particular expanded and/or non-expanded thermoplastic urethane. This significantly simplifies the manufacturing process, as, for example, the cushioning element 110 and the control element 130 can be provided as one integral piece in a single mold without additional use of adhesives.
  • the control element In order to selectively influence the shear behavior of the cushioning element 110, the control element has a number of protrusions 132 which are different in size, hardness and expansion, elevations or bulges 135 of different lengths, thicknesses and structures, as well as openings and recesses 138 with different diameters. By varying these design possibilities, the influence exerted by the control element 130 on the shear behavior of the cushioning element 110 can be selectively controlled.
  • the protrusions 1622 press into the material of the midsole 1630, since the material of the control element 1620, as already mentioned, is preferably of a higher stiffness/strength than the material of the midsole 1630. Thereby, regions 1660 and 1670 are formed in which the material of the midsole 1630 is compressed to varying degrees.
  • control elements 1800a, 1800b, 1800c and 1800d can be adapted to the sole according to the respective requirements in order to selectively influence the properties of the sole.
  • the depressions and/or reinforcing elevations 1820 need not perforce be arranged between two protrusions 1810, but serve as stand-alone possibilities to design control elements according to the invention.
  • such a reinforcing elevation can be advantageously used in the medial midfoot region (cf. 1455 ) in order to increase the stability of the sole there and to reduce the shear and stretching capacity of the midsole material in this region.
  • the first region which has a reduced shear capacity as compared to the second region, is located in the medial region of the midfoot, while the second region is located in the lateral region of the heel.
  • the control element 130 comprises in particular a stabilizing bulge 135 at the medial edge of the midfoot region, as well as a number of openings with a diameter increasing towards the heel and the tip of the foot.
  • FIG. 3a and 3b show the compression in percent of the respective midsole regions compared to the unloaded state of the sole. As expected, no compression occurs in the forefoot region (cf. 320a, 320b ) while the ground is touched by the heel. In the heel region, however, noticeable compressions are visible on the sole of eTPU ( cf. 310a ). The measurements therefore show that eTPU yields significantly more strongly under vertical load than EVA. Furthermore, the energy stored during compression of the eTPU sole is essentially restored to the runner in the course of the step. This increases the running efficiency significantly.
  • Fig. 10a shows the change in length 1010a of the measurement section 1015a extending in AP direction, and the change in length 1020a of the measurement section 1025a, which extends in ML direction, for a shoe with an EVA midsole without outsole, as, e.g., the shoe 240 .
  • the measurements indicate a maximum change in length of about 1.2 mm in AP direction and of about 0.3 mm in ML direction.
  • Fig. 11 shows the average change in length of the measurement section extending in AP direction during a complete step cycle for a shoe with a sliding element, as, for example, the shoe 200 (cf. curve 1110 ), for a shoe with an eTPU midsole, as, for example, the shoe 260 (cf. curve 1120), for a shoe with an EVA midsole, as, for example, the shoe 240 (cf. curve 1130 ) and for the shoe 1400 according to Figs. 14a - 14c (cf. curve 1140 ).
  • Fig. 13d shows that almost all of the stretch vectors in the forefoot region extend parallel in AP direction, i.e. the material stretches almost exclusively in AP direction, while it shows a good stability in ML direction. This is desirable for a dynamic push-off of the foot without losing stability. In case of insufficient stability of the sole in ML direction, the foot would otherwise be in danger of slipping sideways or bending, in particular at a higher running speed and, for instance, in a curve or on uneven terrain.
  • Figs. 21a -b show another preferred embodiment of a shoe 2100 according to the invention.
  • the shoe 2100 comprises a sole comprising a cushioning element 2110 with randomly arranged particles of an expanded material.
  • the cushioning element 2110 is provided as a midsole 2110. It may, however, also be merely a part thereof, for example.
  • the shoe 2100 furthermore comprises an upper 2120.
  • the upper 2120 may be made from a large variety of materials and by a large variety of manufacturing methods.
  • the upper 2120 can, in particular, be warp-knitted, weft-knitted, woven or braided, and it can comprise natural or synthetic materials, it may comprise fibers or yarns, multilaminate materials, compound materials and so on.
  • the blank may be provided as a material layer comprising, for example, one or more of the materials suitable for the manufacture of a control element/outsole mentioned above. It is also possible, for example, that the blanks are provided in different sizes, thickness, with predefined holes, bulges, elevations, protrusions and so forth, which may already provide a basic pattern that may then be fine-tuned by the laser-cutting process. Such a basic pattern may, e.g., be adapted to specific movement patterns occurring during, say, a specific sporting activity and different blanks may be used for the manufacture of shoes 2100 for the different sporting activities. Examples may include blanks for running shoes, tennis shoes, basketball shoes, football shoes, etc. This approach can have the advantage that the blanks can be produced quickly and in a large number beforehand and the individual customization can then be carried out more efficiently and more quickly. To this end, the blanks may also already comprise the general outline of a foot or sole.

Claims (13)

  1. Sohle für einen Schuh, insbesondere einen Sportschuh, umfassend:
    a. eine Zwischensohle (1630; 1730), die zufällig angeordnete Partikel (1635; 1735) aus einem expandierten Material umfasst; und
    b. eine Außensohle (1620; 1720), die eine Anzahl von Ausbuchtungen (1622; 1722) sowie eine Anzahl von Einkerbungen und/oder Vertiefungen (1628; 1728) umfasst,
    c. wobei die Dehnfähigkeit der Zwischensohle in einzelnen Bereichen der Zwischensohle durch die Form und Position der Vorsprünge und Einkerbungen/Vertiefungen selektiv aktiviert oder unterdrückt wird.
  2. Sohle nach Anspruch 1, wobei das Material der Außensohle eine höhere Steifigkeit aufweist als das Material der Zwischensohle.
  3. Sohle nach einem der Ansprüche 1-2, wobei das Material der Zwischensohle in Bereichen (1670) der Zwischensohle in höherem Maße komprimiert ist, in denen Ausbuchtungen unter einer Last auf die Sohle in die Zwischensohle drücken, als in den Bereichen (1660) der Zwischensohle, in denen die Außensohle Einkerbungen und/oder Vertiefungen aufweist.
  4. Sohle nach Anspruch 3, wobei die unterschiedliche Kompression des Materials der Zwischensohle in verschiedenen Bereichen der Zwischensohle die Dehnfähigkeit des Materials der Zwischensohle in den entsprechenden Bereichen beeinflusst.
  5. Sohle nach Anspruch 4, wobei die Dehnfähigkeit in den
    Regionen, in denen das Material der Zwischensohle stärker komprimiert ist, abnimmt.
  6. Sohle nach einem der Ansprüche 1 - 5, wobei weit auseinanderliegende Ausbuchtungen eine größere Dehnungsbewegungen des Zwischensohlenmaterials zulassen als näher beieinanderliegende Ausbuchtungen.
  7. Sohle nach einem der Ansprüche 1 - 6, wobei die Außensohle eine symmetrische, wellenförmige Form aufweist.
  8. Sohle nach einem der Ansprüche 1 - 7, wobei die in das Material der Zwischensohle gepressten Ausbuchtungen unter einer Belastung auf die Sohle für ein Verankern der
    Zwischensohle an der Außensohle sorgen, um die Haftung der Sohle auf dem Boden zu erhöhen.
  9. Sohle nach einem der Ansprüche 1 bis 8, ferner umfassend ein Rahmenelement, das aus Ethylenvinylacetat hergestellt ist oder Ethylenvinylacetat umfasst, wobei das Rahmenelement vorzugsweise den Zwischensohlenbereich mit dem expandierten Material umgibt, um die Stabilität des Zwischensohlenbereichs mit dem expandierten Material zu erhöhen.
  10. Sohle nach einem der Ansprüche 1 - 9, wobei die Partikel des expandierten Materials zufällig angeordnet sind.
  11. Sohle nach einem der Ansprüche 1 - 10, wobei das expandierte Material eines oder mehrere der folgenden Materialien umfasst: Expandiertes EthylenVinylacetat, expandiertes thermoplastisches Urethan, expandiertes Polypropylen, expandiertes Polyamid, expandiertes Polyetherblockamid, expandiertes Polyoxymethylen, expandiertes Polystyrol, expandiertes Polyethylen, expandiertes Polyoxyethylen,
    expandiertes Ethylen-Propylen-Dien-Monomer.
  12. Sohle nach einem der Ansprüche 1 - 11, wobei die Außensohle eines oder mehrere der folgenden Materialien umfasst: Gummi, nicht expandiertes thermoplastisches Urethan, Textilmaterialien, PEBA, eine Folie, ein folienartiges Material.
  13. Schuh (2100; 2200a-d), insbesondere Sportschuh, umfassend eine Sohle nach einem der Ansprüche 1 - 12.
EP18181579.6A 2013-02-13 2014-01-28 Sohle für einen schuh Active EP3466291B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20206640.3A EP3804551A1 (de) 2013-02-13 2014-01-28 Sohle für einen schuh

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013202353.7A DE102013202353B4 (de) 2013-02-13 2013-02-13 Sohle für einen Schuh
EP14152908.1A EP2845504B1 (de) 2013-02-13 2014-01-28 Sohle für einen Schuh

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14152908.1A Division-Into EP2845504B1 (de) 2013-02-13 2014-01-28 Sohle für einen Schuh
EP14152908.1A Division EP2845504B1 (de) 2013-02-13 2014-01-28 Sohle für einen Schuh

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP20206640.3A Division EP3804551A1 (de) 2013-02-13 2014-01-28 Sohle für einen schuh

Publications (2)

Publication Number Publication Date
EP3466291A1 EP3466291A1 (de) 2019-04-10
EP3466291B1 true EP3466291B1 (de) 2020-11-11

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ID=50000893

Family Applications (3)

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EP20206640.3A Pending EP3804551A1 (de) 2013-02-13 2014-01-28 Sohle für einen schuh
EP18181579.6A Active EP3466291B1 (de) 2013-02-13 2014-01-28 Sohle für einen schuh
EP14152908.1A Active EP2845504B1 (de) 2013-02-13 2014-01-28 Sohle für einen Schuh

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20206640.3A Pending EP3804551A1 (de) 2013-02-13 2014-01-28 Sohle für einen schuh

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14152908.1A Active EP2845504B1 (de) 2013-02-13 2014-01-28 Sohle für einen Schuh

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EP (3) EP3804551A1 (de)
JP (3) JP6491697B2 (de)
DE (2) DE102013202353B4 (de)

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Also Published As

Publication number Publication date
JP2017185287A (ja) 2017-10-12
JP6718533B2 (ja) 2020-07-08
JP2020146530A (ja) 2020-09-17
EP2845504B1 (de) 2018-08-15
DE102013202353A1 (de) 2014-08-14
EP2845504A1 (de) 2015-03-11
EP3804551A1 (de) 2021-04-14
JP6491697B2 (ja) 2019-03-27
DE102013202353B4 (de) 2020-02-20
EP3466291A1 (de) 2019-04-10
JP2019081036A (ja) 2019-05-30
DE202014010460U1 (de) 2015-08-12
JP6974540B2 (ja) 2021-12-01

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