EP0594589B1 - Schuh mit verbesserter innensohle - Google Patents

Schuh mit verbesserter innensohle Download PDF

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Publication number
EP0594589B1
EP0594589B1 EP91904105A EP91904105A EP0594589B1 EP 0594589 B1 EP0594589 B1 EP 0594589B1 EP 91904105 A EP91904105 A EP 91904105A EP 91904105 A EP91904105 A EP 91904105A EP 0594589 B1 EP0594589 B1 EP 0594589B1
Authority
EP
European Patent Office
Prior art keywords
plugs
web
footwear
article
hollow
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.)
Expired - Lifetime
Application number
EP91904105A
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English (en)
French (fr)
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EP0594589A1 (de
EP0594589A4 (de
Inventor
Hy Kramer
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Individual
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Individual
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Filing date
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Publication of EP0594589A4 publication Critical patent/EP0594589A4/de
Publication of EP0594589A1 publication Critical patent/EP0594589A1/de
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Publication of EP0594589B1 publication Critical patent/EP0594589B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • A43B13/206—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with tubes or pipes or tubular shaped cushioning members
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/06—Footwear with health or hygienic arrangements ventilated
    • A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
    • A43B7/081—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures the air being forced from outside

Definitions

  • the present invention relates to improved articles of footwear, particularly shoes having improved step cushioning and ventilation of the foot of the wearer. More particularly still, it relates to improvements in midsoles.
  • U.S. Patent No. 4,608,768 issued September 2, 1986, to Cavanagh discloses the use of plugs which are inserted in an openwork support forming a midsole.
  • the plugs are made of a material that is harder than that of the midsole.
  • U.S. Patent No. 4,831,749 issued May 23, 1989, to Tsai discloses a footwear including a ventilating and massaging insole having a plurality of upper beads protruding upwardly to touch a wearer's foot and a plurality of lower beads protruding downwardly to ride on a footwear sole so that upon a depression of a wearer's foot on the insole, an air flow will be pumped through holes each hole formed between each upper bead and each lower bead for ventilating the wearer's foot and for massaging the same.
  • U.S. Patent No. 4,685,224 issued August 11, 1987, to Anger discloses the use of a labyrinth of ventilation channels between the top-sole of a shoe and the underside of the foot. This is intended to provide a pumping effect to move air around and ventilate the foot of the wearer.
  • U.S. Patent 3,418,731 issued December 31, 1968, to Anciaux discloses the use of an insole for a shoe provided with upper and lower surfaces of resilient material, and the upper surface of the sole being provided with a plurality of blind recesses, and the bottom surface being provided with corresponding projections so as to provide some ventilation during the action of walking.
  • DE-A-3 635 831 which is considered to constitute the closest prior art, describes an insert to be cemented into a article of footwear.
  • the insert has a base plate with a plurality of solid or open hollow, frusto-conical plugs extending vertically from at least one side thereof.
  • the web and hollow plugs are formed of the same material so as to have a substantially uniform hardness value, the material comprising a thermoplastic having a Shore hardness value of 10 to 70.
  • the hollow plugs are sufficient in number and design to permit significat deformation of said thermoplastic material when said insert is cemented into the article of footwear to provide for shock absorption ad ventilation.
  • US-1 598 809 describes, in footwear, the use, with a outer sole ad insole, of a filler composed of a perforated pad of sort rubber provided with depressions which form a narrow, raised ridge around each perforation, the edge of the pad being bevelled off so as to slope away from the ridged portion.
  • the filling pad is arranged in the space between the soles with the ridges turned towards the insole.
  • DE-61906 describes the use of an elasticated sole for a shoe, the surface of the sole having a plurality of crater-like projections depending therefrom.
  • DE-806647 describes the use of certain thermoplastics materials in the manufacture of shoe soles.
  • GB 2 032 761 describes an article of footwear comprising a heel or sole part having a single recess having inserted therein a solid cylindrical plug made of a highly and easily compressible material, said plug being supported by fitting in said corresponding recess.
  • the present invention is not directed to an objective of maximizing, or even obtaining, energy return to the walkers, but to the objective of shock-absorbing relatively gentle shocks of the steps of a normal walker and simultaneously ventilating the inside of the shoes worn.
  • the present invention provides an article of footwear which includes in the sole area a number of vertical plugs or columns adapted to easily compress and bulge with each step of the wearer.
  • This provides a shock-absorbing element of special value as it provides a comfortable base for the foot, fairly conformable to its sole contours, and cushions each step of the wearer.
  • the compressibility of the thermoplastic material is such that the plugs are compressed and significantly deformed to cushion each step of the wearer, the deformation being accompanied by substantial bulging of the plugs, and the compression, bulging, and subsequent recovery of the shape of the plugs providing significant flow of air in the sole region, for ventilating the article of footwear.
  • One embodiment of the present invention provides a midsole or part midsole adapted for inclusion in an article of footwear, to provide step cushioning and ventilation for the wearer.
  • the midsole or part midsole comprises a web portion adapted to extend along at least a portion of an outsole of the footwear and includes a cushioning element comprising a plurality of plugs projecting perpendicularly with respect to the plane of the web.
  • Each plug is made of elastic but easily compressible thermoplastic rubber or the like. The plugs are distributed on a web so as to provide a comfortable base for the foot of a wearer to cushion each step of the wearer.
  • the distribution, size and number of the plugs, and the compressibility of the material is such that the plugs are easily deformed and significantly compressed to cushion each step of the wearer, the compression being accompanied by substantial bulging of the plug.
  • the compression, bulging, and subsequent recovery of the shape of the plug provides movement of the surrounding air, for ventilation of the article of footwear.
  • the invention provides an article of footwear comprising an outsole and an upper, the outsole being provided with a plurality of upstanding plugs formed of resilient easily compressible material.
  • the plugs are distributed on the outsole so as to provide a comfortable base for the foot of a wearer, and to cushion the steps of a wearer.
  • the distribution, size and number of said plugs and the compressibility of the plastic is such that the plugs are deformed and significantly compressed to cushion each step of the wearer, the compression being accompanied by substantial bulging of the plug.
  • the compression, bulging, and subsequent recovery of the shape of the plug providing a significant flow of air along the outsole, for ventilation of the article of footwear.
  • FIG. 1 of the drawings shows a plan view of a midsole which may be in the form of a readily removable drop-in insert shown generally as web 10 which is provided with a large number of upstanding plugs 11. These plugs are disposed in this embodiment along the entire midsole 10, which extends from the toe portion 12 through the ball portion 13 to the heel portion 14. In this embodiment each plug 11 is upstanding with respect to the web 10, and is affixed to the web at its proximal end. Each plug 11 in this embodiment displays a central aperture 16.
  • the entire midsole 10 is preferably manufactured by injection molding, in which case the web 10 of the midsole as well as the plugs 11 are of the same material, and in which case the web 10 is highly flexible but not air-permeable. Such midsole then would be suitable for inclusion in an article of footwear, where the web 10 is in contact with the top of the outsole and the plugs 11 project upwardly.
  • the most suitable material found for such midsole is that known an "Supersoft" thermoplastic resin available from GLS PLASTICS of Woodstock, IL 60090, U.S.A. (sold by them under item #G3294).
  • the material is made from a thermoplastic compound known as "Kraton”TM supplied by the Shell Chemical Company.
  • the preferred Kraton compounds are Kraton D-2104 and Kraton D-3226.
  • the resulting "Supersoft" thermoplastic yields a midsole material having Durometer readings below 30, and preferably in the vicinity of 20. In spite of the softness of the resultant midsole, it still exhibits excellent elasticity and long life. Of course, there are other materials besides Kraton, such as Estane, polyvinyl chloride or rubber. The requisite characteristics of the material is that they yield plugs 11 that are easily compressible and significantly deformable (generally having Durometer readings below appr. 30) but that have long life and good elasticity in order to spring back to their original shape once compressive forces have been removed. The shape of the plugs 11 is not critical.
  • FIGs 2 and 3 show portions of the midsole shown in Figure 1 in perspective view and side elevation respectively.
  • this embodiment is provided with lower projections 20, which provide a small amount of ventilation below the midsole.
  • the plugs are shown as items 20 and 21. It will be seen that in the embodiments shown in Figure 4, the plugs are of varying thickness (i.e., height). Such thickness or height is of course discretionary, but values below 10 mm would appear reasonable. The plugs may have a height of between 3mm and 10mm.
  • FIG 6 shows an embodiment in which a portion of midsole as shown in Figure 3 is provided with a top web 25, which suitably can be prepared of porous material, or it can be a perforated material, thereby providing for some movement of air.
  • the plugs 11 are shown compressively deformed and bulging.
  • Figure 7 shows a cut-away view of a shoe embodying one form of the present invention, in which the midsole shown in Figure 1 is in place on top of outsole 31 in a shoe.
  • a flexible, air-permeable top-sole 30 is in place over the midsole.
  • Figure 8 shows an embodiment wherein an outsole 42 is provided during manufacture with cut-away portions 43 and 44 so that suitably sized and shaped sections 40 and 41 of web such as shown in Figures 2, 3, etc., fit directly into the spaces, thereby taking up less vertical room in the interior of the footwear.
  • the web sections 40 and 41 comprising the "midsole” or drop-in insert are also thus held effectively in place against lateral movement. It is, of course, possible to provide only one of the sections 40 and 41.
  • FIG 9 shows still another embodiment of the present invention in which a portion of the web 10 similar to that in Figure 2 is provided with upstanding plugs 51 which are hollow, but essentially square in cross section.
  • plugs 51 which are hollow, but essentially square in cross section.
  • Such variables as the resiliency of the plastic material, the height and shape of the plugs, the distribution and number of the plugs per unit of area, variations in the heights of various plugs, or rows of plugs, hollow versus solid plugs, and the thickness of the walls in such hollow plugs, can all be varied for the purpose of achieving the objectives of the present invention. Satisfactory results have been obtained using plugs having a cross-sectional area of appr. 0.5 cm 2 with a wall thickness of 1 to 3 mm if hollow.
  • Figure 10 shows a further variation of the invention, in which the plugs are not all of the same length, wherein in insert 41 similar to the one shown in Figure 9, for the toe portion of a shoe or sandal, as may be seen from Figure 10, the plugs 11 grow progressively shorter through plugs 52 to 53 as they approach the toe.
  • the lengths of the plugs may be varied in any suitable manner to accommodate the geometry of the inside of the item of footwear.
  • Figure 11 shows a further embodiment of a portion of a web in accordance with the present invention, wherein the plugs in the upper and lower webs are facing each other for added cushioning.
  • the upper web should be flexible and preferably also air-permeable.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)

Claims (9)

  1. Leicht entfernbare einlegbare Einlage für einen Fußbekleidungsgegenstand, wobei die Einlage folgendes aufweist:
    eine Bahn (10) und
    eine Vielzahl von hohlen Stöpseln, die sich im wesentlichen vertikal von wenigstens einer Seite der Bahn erstrecken, wobei die Bahn und die hohlen Stöpsel aus demselben Material gebildet sind, so daß sie einen im wesentlichen einheitlichen Härtewert haben, und wobei das Material einen elastischen, extrem weichen, verformbaren Thermoplast aufweist, der einen Shore-A-Härtewert (D-2240) von weniger als ca. 35 hat, aufweist,
    dadurch gekennzeichnet, daß die Vielzahl von hohlen Stöpseln im wesentlichen zylindrische Stöpsel (11) von mit der Bahn integraler, einteiliger Konstruktion sind und jeder dieser hohlen, im wesentlichen zylindrischen Stöpsel einen Wandbereich mit voneinander beabstandeten inneren und äußeren Oberflächen und eine Endfläche hat, die von der Bahn beabstandet ist, wobei diese Endfläche einen allgemein flachen Arbeitsbereich bildet und eine Öffnung darin hat, deren Durchmesser gleich einem Durchmesser der inneren Oberfläche ist;
    wobei die hohlen Stöpsel, die eine Höhe zwischen ca. 3 mm und ca. 10 mm haben, in ausreichender Anzahl und Ausbildung vorhanden sind, um eine signifikante Verformung des Thermoplastmaterials und eine Luftkompression von innerhalb der hohlen Stöpsel eingeschlossener Luft entlang einer Höhendimension der hohlen Stöpsel zuzulassen, begleitet von gleichzeitiger signifikanter Auswölbungsverformung in dem zu der Höhendimension dieser hohlen Stöpsel senkrechten Wandbereich, wenn die einlegbare Einlage in dem Fußbekleidungsgegenstand im Gebrauch ist, um in Verbindung damit für Stoßabsorption und Lüftung zu sorgen.
  2. Einlage nach Anspruch 1, wobei das Thermoplastmaterial einen Shore-A-Härtewert (D2240) von ca. 20 hat.
  3. Einlage nach Anspruch 1 oder 2, wobei das Thermoplastmaterial aus der Gruppe ausgewählt ist, die aus Kraton™ D2104, Kraton™ D-3226, Estane™, Polyvinylchlorid und Kautschuk besteht.
  4. Einlage nach einem der vorhergehenden Ansprüche, wobei die hohlen Stöpsel unterschiedliche Höhe haben.
  5. Einlage nach einem der vorhergehenden Ansprüche, wobei die Bahn im allgemeinen in einem vorderen Abschnitt des Fußbekleidungsgegenstands angeordnet ist.
  6. Einlage nach einem der vorhergehenden Ansprüche, wobei die Bahn sohlenförmig ist.
  7. Einlage nach Anspruch 6, wobei die hohlen Stöpsel unterschiedliche Höhe haben, so daß die hohlen Stöpsel in einem Zehenbereich des Fußbekleidungsgegenstands kürzer als die verbleibenden hohlen Stöpsel sind.
  8. Einlage nach Anspruch 1, wobei die Bahn im allgemeinen in einem Fersenbereich des Fußbekleidungsgegenstands angeordnet ist.
  9. Einlage nach Anspruch 1, wobei jeder der hohlen Stöpsel an einem zu der genannten Endfläche, die den Arbeitsbereich bildet, entgegengesetzten Ende geschlossen ist, um den Durchtritt von Luft durch ihn zu verhindern.
EP91904105A 1990-02-09 1991-02-04 Schuh mit verbesserter innensohle Expired - Lifetime EP0594589B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US47773290A 1990-02-09 1990-02-09
US477732 1990-02-09
PCT/US1991/000590 WO1991011928A1 (en) 1990-02-09 1991-02-04 Article of footwear having improved midsole

Publications (3)

Publication Number Publication Date
EP0594589A4 EP0594589A4 (de) 1992-10-21
EP0594589A1 EP0594589A1 (de) 1994-05-04
EP0594589B1 true EP0594589B1 (de) 1999-10-27

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EP91904105A Expired - Lifetime EP0594589B1 (de) 1990-02-09 1991-02-04 Schuh mit verbesserter innensohle

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EP (1) EP0594589B1 (de)
JP (1) JPH05503451A (de)
KR (1) KR0148225B1 (de)
CN (1) CN1053884A (de)
AT (1) ATE185951T1 (de)
AU (1) AU648064B2 (de)
BR (1) BR9106003A (de)
CA (1) CA2075989A1 (de)
CZ (1) CZ280447B6 (de)
DE (1) DE69131755D1 (de)
FI (1) FI923565A (de)
GR (1) GR1001110B (de)
HU (2) HUT63545A (de)
IN (1) IN175339B (de)
PL (1) PL167270B1 (de)
RO (1) RO109029B1 (de)
RU (1) RU2085096C1 (de)
WO (1) WO1991011928A1 (de)
YU (1) YU20891A (de)

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EP4186389A1 (de) * 2014-11-05 2023-05-31 NIKE Innovate C.V. Verfahren und flexible gitterschaumstoffe

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JP7085987B2 (ja) 2015-09-24 2022-06-17 ナイキ イノベイト シーブイ 粒子状発泡体積層ケーシング
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ES2821198T3 (es) 2017-02-17 2021-04-23 Special Springs Srl Actuador de cilindro de gas con dispositivo de seguridad para retorno descontrolado del pistón-vastago
CN117356793A (zh) 2017-03-16 2024-01-09 耐克创新有限合伙公司 用于鞋类物品的缓冲构件
CN110771990B (zh) * 2017-07-04 2021-07-06 黎明职业大学 一种防滑性能佳的多功能舒适性运动鞋底
CN115177073A (zh) 2019-07-25 2022-10-14 耐克创新有限合伙公司 鞋类物品
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EP3824753A1 (de) * 2019-11-20 2021-05-26 Caprice Schuhproduktion GmbH & Co. KG Dämpfende schuhsohlenanordnung

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GB189915421A (en) * 1899-07-27 1899-12-09 William Lingard Improvements in Boots and Shoes.
US1605408A (en) * 1921-12-24 1926-11-02 Huiskamp James Air-cushion sole
US1598809A (en) * 1922-06-23 1926-09-07 Dressel Karl Boot and like cushioning device
US1605588A (en) * 1923-01-08 1926-11-02 Huiskamp James Shoe
DE474016C (de) * 1928-02-12 1929-03-25 Julius Blumenfeld Brandsohlenauflage fuer Schuhwerk
US2432533A (en) * 1944-04-25 1947-12-16 Margolin Meyer Ventilated midsole
US2527414A (en) * 1944-08-22 1950-10-24 Hallgren Karl Simon Rubber sole for footwear
DE806647C (de) * 1949-02-05 1952-05-08 Ludwig Georg Sertel Kombinierte Lauf- und Zwischensohle aus Kunststoff fuer Schuhwerk und Verfahren zu ihrer Herstellung
GB2032761B (en) * 1978-10-17 1983-05-11 Funck H Heel for shoe
US4364186A (en) * 1980-06-19 1982-12-21 Fukuoka Kagaku Kogyo Kabushiki Kaisha Ventilated footwear
US4462171A (en) * 1982-05-28 1984-07-31 Whispell Louis J Inflatable sole construction
US4521979A (en) * 1984-03-01 1985-06-11 Blaser Anton J Shock absorbing shoe sole
IT1209964B (it) * 1985-07-26 1989-08-30 Galasso Francesco E Galasso Ri Suola per calzature terapeutiche, sportive e per il tempo libero,a camera d'aria con elementi distanziatori elastici
DE3635831A1 (de) * 1986-10-22 1988-05-11 Kurt O John Gmbh & Co Kg Laufsohle fuer schuhwerk
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US4864738A (en) * 1988-07-19 1989-09-12 Zvi Horovitz Sole construction for footwear
GB2221378A (en) * 1988-08-02 1990-02-07 Far East Athletics Limited Sole with the compressible shock absorbers
DE9001492U1 (de) * 1990-02-09 1990-05-23 Dimitrov, Pentcho, Dr., 5270 Gummersbach Schuh, insbesondere Sandale, mit auf der Fußseite genoppter Sohle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4186389A1 (de) * 2014-11-05 2023-05-31 NIKE Innovate C.V. Verfahren und flexible gitterschaumstoffe

Also Published As

Publication number Publication date
PL289003A1 (en) 1991-09-23
WO1991011928A1 (en) 1991-08-22
HUT63545A (en) 1993-09-28
YU20891A (sh) 1995-01-31
GR910100070A (en) 1992-06-30
CN1053884A (zh) 1991-08-21
BR9106003A (pt) 1992-10-20
CS31791A3 (en) 1992-03-18
AU7242691A (en) 1991-09-03
EP0594589A1 (de) 1994-05-04
HU9202576D0 (en) 1993-05-28
RU2085096C1 (ru) 1997-07-27
AU648064B2 (en) 1994-04-14
DE69131755D1 (de) 1999-12-02
FI923565A0 (fi) 1992-08-07
PL167270B1 (pl) 1995-08-31
FI923565A (fi) 1992-08-07
IN175339B (de) 1995-06-10
KR0148225B1 (ko) 1998-08-17
JPH05503451A (ja) 1993-06-10
RO109029B1 (ro) 1994-11-30
GR1001110B (el) 1993-04-28
ATE185951T1 (de) 1999-11-15
EP0594589A4 (de) 1992-10-21
KR920702948A (ko) 1992-12-17
CZ280447B6 (cs) 1996-01-17
CA2075989A1 (en) 1991-08-10

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