WO2001028378A1 - Semelle interieure de chaussure pouvant etre formee sur mesure et procede - Google Patents

Semelle interieure de chaussure pouvant etre formee sur mesure et procede Download PDF

Info

Publication number
WO2001028378A1
WO2001028378A1 PCT/US2000/041250 US0041250W WO0128378A1 WO 2001028378 A1 WO2001028378 A1 WO 2001028378A1 US 0041250 W US0041250 W US 0041250W WO 0128378 A1 WO0128378 A1 WO 0128378A1
Authority
WO
WIPO (PCT)
Prior art keywords
insole
substrate
shoe
moisture
thicknesses
Prior art date
Application number
PCT/US2000/041250
Other languages
English (en)
Inventor
Louis J. Foreman
Original Assignee
Parker Athletic Products, Llc
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 Parker Athletic Products, Llc filed Critical Parker Athletic Products, Llc
Priority to AU21141/01A priority Critical patent/AU2114101A/en
Publication of WO2001028378A1 publication Critical patent/WO2001028378A1/fr

Links

Classifications

    • 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
    • A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
    • A61F5/14—Special medical insertions for shoes for flat-feet, club-feet or the like

Definitions

  • insole refers to an insert with a cushion layer which is fitted into the shoe and usually substantially overlies the entire upper weight-bearing surface of the inside of the shoe over the midsole. It is the outermost liner on the inside of the sole,
  • insole is used arbitrarily in this application to refer to the structure described, by whatever name.
  • insoles may be useful in any one of several environments, For example, insoles made and used in accordance with the invention of this application may be sold for use by individuals who need enhanced foot support as a palliative for a variety of medical conditions. Sale may be over-the-counter or furnished by a medical services provider as a part of the provided services.
  • the insole in accordance with this invention has application to all types of shoes, such as dress and casual shoes, recreational shoes
  • the insoles will provide enhanced support and comfort during wear, thereby reducing fatigue and injury.
  • the insoles will be particularly useful for wearers who have excessive pronation or supronation. Insoles in accordance with the invention
  • the manufacturer may c oose to se s oes w t a pa r o nso e pro ucts so t at e wearer can nsert t em into the new shoe and mold the shoe to the wearer's foot before use.
  • Prior art cushion insoles do little more than provide cushioning to the foot, thereby enhancing comfort by reducing shock to the foot and decelerating pronation.
  • Such inserts are considerably too soft to actually support the arch and therefore stabilize the foot by reducing or eliminating pronation in a safe and comfortable manner.
  • Some custom-made shoe inserts are cast or molded of plastic based on molds taken of the foot, and are therefore expensive and often require multiple adjustments achieve a proper fit.
  • the insole according to the present invention not only provides a rigid arch support for the wearer, it conforms the entire insole of the shoe to the exact shape, size and configuration of foot of the wearer. As such, the insoles can also be used to adjust
  • This invention makes use of a moisture-curable resin impregnated into a substrate and laminated together with a cushion material to provide a custom-moldable insole.
  • the insole is packaged within a moisture-impervious package against entry of moisture
  • insole is further enhanced by providing variable reenforcement so that strength, impact dispersion and rigidity are enhanced
  • the present invention permits quick and easy creation of a truly custom-formed insole.
  • the moisture curable resin system used results in a very rigid material. No heat
  • Atmospheric moisture alone will cure the material into its hardened position in a re at ve y s or pe o o me, u t e res n n or on e ma e a w yp ca y e activated by dipping in water.
  • thermoplastic insoles shape, as is the case with thermoplastic insoles.
  • a storage package formed of moisture-impervious material and sealable to prevent entry of moisture and a shoe insole positioned in the storage package
  • the shoe insole comprises a substrate having a variable thickness with a relatively, thick heel area to provide rigidity and support to the heel, and progressively thinner areas forward of the heel towards a ball area of the insole to provide progressively less rigidity to insole orwar o t e ee .
  • reac ve sys em s mpregna e n o or coa e on o e su s ra e the system remaining stable when maintained in substantially moisture-free conditions and hardening upon exposure to sufficient moisture to form a rigid, self supporting structure.
  • a cushion layer is adhered to an upper surface of the substrate for residing between the foot of the wearer and the substrate during use.
  • the substrate comprises a plurality of overlaid thicknesses of fabric, the variable thickness of the substrate being defined by respectively variable numbers of thicknesses of fabric, which may be fiberglass, or natural or synthetic fibers such as polyester, polypropylene or nylon.
  • fabric thicknesses comprise fiberglass.
  • At least some of the fabric thicknesses comprise woven fiberglass.
  • the plurality of thicknesses of fiberglass comprises at least five thicknesses in the area of the heel.
  • the cushion layer comprises ethylene vinyl acetate.
  • the insole includes a substrate having a variable thickness with a relatively thick heel area to provide rigidity and support to the heel, and progressively thinner areas forward of the heel towards a ball area of the insole to provide progressively less rigidity to insole forward of the heel.
  • a reactive system is impregnated into or coated onto the substrate, the system remaining stable when maintained in substantially moisture-free conditions for maintaining the
  • a cushion layer is adhered o an upper sur ace o e su s r e wearer an e
  • the substrate comprises a plurality of overlaid thicknesses of fabric, the variable thickness of the substrate being defined by respectively variable numbers of
  • the fabric thicknesses comprise fiberglass.
  • a shoe is provided, and includes an outer sole, a foot-surrounding upper portion defining an opening through which a foot may be inserted, and includes the combination therewith of a custom-formable supporting orthotic insole, comprising a substrate having a variable thickness with a relatively thick heel area to provide rigidity and support to the heel portion of the foot of the wearer, and progressively thinner areas forward of the heel area towards a ball area of the insole to provide progressively less rigidity to the insole forward of the heel.
  • a cushion layer is adhered to an upper surface of the substrate for residing between the foot of the wearer and the substrate during use.
  • the shoe insole includes a substrate having a variable thickness with a relatively thick heel area to provide rigidity and support to the heel, and progressively thinner areas forward of the heel towards a ball area of the insole to provide progressively less rigidity to insole forward of the heel.
  • a reactive system is impregnated into or coated onto the substrate, the system remaining stable when
  • a cushion layer is adhered to an upper surface of the substrate for residing between the foot of the wearer and the substrate during use.
  • the insole is removed from the storage package just prior to use and is exposed to moisture in an amount sufficient to activate the moisture-curable resin on the substrate.
  • the insole is placed into a shoe.
  • a foot is placed into the shoe and pressure is exerted on the insole for a sufficient period of time for the insole to harden, whereby the insole hardens into a permanent position custom-formed to the wearer.
  • An embodiment of the method according to the invention comprises the step of inserting a support into the shoe and under the insole in the area of the arch of the foot for supporting the arch against the underside of the foot during curing of the resin on the substrate.
  • the step of providing a substrate includes the step of providing a plurality of overlaid thicknesses of fabric, the
  • variable thickness of the substrate being defined by respectively variable numbers of thicknesses of fabric.
  • Figure 1 is an exploded view of a typical athletic shoe, including an insole in accordance with one embodiment of the invention
  • Figure 2 is a perspective view showing the insole product, including a moisture-
  • Figure 3 is a perspective view showing an insole being removed from a moisture- proof sleeve by opening the sleeve immediately prior to use;
  • Figure 4 illustrates activation of the moisture-curable resin in the insole by wetting
  • Figure 5 is a perspective view of the bottom side of an insole according to a preferred embodiment of the invention with a bottom cover partially removed for clarity;
  • Figure 6 is a perspective view of the top side of the insole shown in Figure 5;
  • Figure 7 is an exploded view of Figure 5, showing the manner of assembly of an insole, with the bottom cover omitted for clarity; and
  • Figure 8 is a vertical partial, cross-sectional view showing the manner in which the
  • insole is molded to the foot.
  • Shoe 10 is constructed of a number of components, including an outsole 11, a midsole 12 which is adhesively-
  • a custom-formable orthotic insole 20 is inserted into the shoe 10 and resides over the midsole 12 and the heel and ball cushions 13 and 14.
  • the insole 20 may be substituted for a conventional, pre-formed insole which are typically positioned in the shoe as purchased.
  • the insole may be used with any type of shoe, and the different shoes illustrated in the drawings exemplify this fact.
  • Shoe 10 also includes a strap assembly 15, an inner sleeve 16 and a vamp, or "upper” 17 which are adhesively bonded together to produce the final shoe structure.
  • the custom-formable orthotic insole product includes an insole 20 positioned in an outer elongate sleeve 21 which is formed of a moisture-impervious material, such as a conventional laminated foil/plastic film product. Sleeve 21 is heat-sealed closed with the insole 20 therein in substantially moisture-free conditions.
  • the insole 20 When ready for use, the insole 20 is removed from the sleeve 21 and dipped into water to activate the resin and harden the insole 20. Then, excess moisture is squeezed from the structure, for example, by rolling the insole 20 in a towel. Referring now to Figures 5 and 7, the underside of the insole 20 is shown. Insole
  • a cushion layer 22 which may be an ethylene vinyl acetate (EVA) foam, closed or open-cell polyurethane foam or other suitable cushion product in the general
  • a substrate 23 is positioned on the bottom surface of the cushion layer 22 and is
  • fiberglass fabric are bonded by a suitable, moisture-free adhesive to each other and to the heel and arch areas of the cushion layer 22.
  • the layers 23A-E are sized and overlapped in order that the heel and arch areas are the most built-up and rigid, whereas the forward area near the ball of the foot is somewhat more flexible while still retaining a high degree of support.
  • Alternative embodiments may employ only a single substrate layer, particularly if materials other than fiberglass are used. In general, the substrate layers 23A-E are in registration with each other around
  • each layer 23A-E may be formed of single or multiple plies of the substrate material, and the number of layers may be more or less than five, depending on the size of the shoe, the degree of support required, the particular shoe construction and similar factors.
  • One alternative substrate material is a single thickness sheet of random laid non-
  • Firet Coremat grades such as Firet Coremat XX and Firet Coremat XW may also be suitable. These grades are filled with plastic microspheres to 50 percent by
  • polypropylene yarns This product is inexpensive and somewhat more flexible than fiberglass fabric after hardening.
  • the moisture-curable resin used to impregnate or coat the substrate 18 is a polyisocyanate as described in full in U.S. Patent No. 4,770,299- This reactive system remains stable when maintained in substantially moisture-free conditions, such as in the moisture-impervious pouch 11, but hardens upon exposure to sufficient moisture to form
  • the polyisocyanate resin is characterized by being in a viscous, liquid unhardened
  • the curing time can be controlled to some extent by the quantity of water to which the resin is exposed. For example, exposure to water by dipping will result in quite rapid curing, while merely a ow ng e amount of moisture, iX ⁇ , the humidity, in the air to which it is exposed.
  • a bottom cover 24 is preferably glued or otherwise adhered to the substrate 23 to isolate it from contact by the user, and to protect the underneath areas of the shoe from the abrasive glass.
  • This may, for example, be a woven, knitted or non- woven fabric material, a thin foam layer or applied protective coating.
  • Figure 6 illustrates insole 20 as it will be inserted into the shoe, with the cushion layer 22 facing upwardly and forming the surface on which the bottom of the foot rests.
  • the substrate layers 23A-E lie under the heel and arch area and provide support to these areas.
  • the substrate layers 23A-E may be completely absent from the ball of the foot forward to permit ease of flexing, or may simply be relatively thinner, so that flexibility in the ball and toe area is relatively greater than at the heel and arch areas, while still restricted to at least some degree. This arrangement may be desirable with heavy-duty boots and safety shoes, and for other special applications where maximum flexibility is
  • the molding process begins by opening the envelope within which the insole 20 is packaged ( Figure 3) and wetting the insole by dipping in water ( Figure 4). As is shown in Figure 8, an arch support 25 is first placed in arch area of the shoe and then the just-wetted and still flexible insole 20
  • arch support 25 is placed in the shoe directly over the arch support.
  • Numerous types of arch supports 25 are available and are suitable for use.
  • “cookie” comprises a hard, wedge-shaped member which is of a shape to fill the void between arch of the foot and the midsole of the shoe. erna ve , e arc suppor e or ma er a coa e w or impregnated with the moisture-curable resin as described above, so that the arch in the insole 20 is itself more closely molded to the shape of the arch of the wearer.
  • the foot is then inserted into the shoe for 10-15 minutes. Ideally, the wearer stands for this period of time so that the weight on the insole 20 and the underlying arch support 25 closely conforms the shape of the insole 20 to the weight-bearing shape and size of the foot.
  • the arch support 25 may be removed.
  • the rigidity of the hardened insole 20 is such that the shape of the arch is fully maintained without the arch support 25 being present.
  • the ability of the insole 20 to mold itself to the foot is such that not only the arch area but the entire bottom of the foot over the substrate area is precisely molded into the insole 20, thus enhancing the comfort of the shoe and spreading the weight of the wearer over the maximum possible area.
  • the insole 20 may be removed for adjustment, replacement or laundering when desired.
  • a shoe insole product, shoe insole and method of forming a custom-moldable shoe insole is described above. Various details of the invention may be changed without

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

L'invention concerne un produit (20) de semelle intérieure orthostastique sur mesure pour chaussure (10), qui comporte un conditionnement (21) de stockage et une semelle intérieure (20). La semelle intérieure (20) comporte un substrat (23) imprégné d'une résine. La semelle intérieure (20) durcit lorsqu'on la sort du conditionnement (21) de stockage et qu'on l'expose à suffisamment d'humidité.
PCT/US2000/041250 1999-10-20 2000-10-19 Semelle interieure de chaussure pouvant etre formee sur mesure et procede WO2001028378A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21141/01A AU2114101A (en) 1999-10-20 2000-10-19 Custom-formable shoe insole and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42090199A 1999-10-20 1999-10-20
US09/420,901 1999-10-20

Publications (1)

Publication Number Publication Date
WO2001028378A1 true WO2001028378A1 (fr) 2001-04-26

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ID=23668312

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/041250 WO2001028378A1 (fr) 1999-10-20 2000-10-19 Semelle interieure de chaussure pouvant etre formee sur mesure et procede

Country Status (2)

Country Link
AU (1) AU2114101A (fr)
WO (1) WO2001028378A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2995207A1 (fr) * 2012-09-12 2014-03-14 Dominique Lamidez Semelle orthopedique modulable
US10127944B2 (en) 2000-12-19 2018-11-13 Resource Consortium Limited System and method for multimedia authoring and playback
CN113438909A (zh) * 2019-01-29 2021-09-24 活力科技私人有限公司 用于鞋类的鞋垫

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32698E (en) * 1982-02-26 1988-06-21 Northwest Podiatric Laboratories, Inc. Orthotic insert
US4770299A (en) * 1987-01-06 1988-09-13 Parker Medical Associates Roll form medical bandaging product
US5095570A (en) * 1989-12-12 1992-03-17 Orthofeet Inc. Method for producing an insole

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32698E (en) * 1982-02-26 1988-06-21 Northwest Podiatric Laboratories, Inc. Orthotic insert
US4770299A (en) * 1987-01-06 1988-09-13 Parker Medical Associates Roll form medical bandaging product
US5095570A (en) * 1989-12-12 1992-03-17 Orthofeet Inc. Method for producing an insole

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10127944B2 (en) 2000-12-19 2018-11-13 Resource Consortium Limited System and method for multimedia authoring and playback
FR2995207A1 (fr) * 2012-09-12 2014-03-14 Dominique Lamidez Semelle orthopedique modulable
WO2014041259A1 (fr) * 2012-09-12 2014-03-20 Lamidez Dominique Dispositif modulable par cale indépendante pour modifier l'épaisseur des semelles orthopédiques dans le domaine du traitement des pathologies de tendino-pathie du tendon d'achille, correction de l'hyper appui du talon, correction de la statique du pied
CN113438909A (zh) * 2019-01-29 2021-09-24 活力科技私人有限公司 用于鞋类的鞋垫
CN113438909B (zh) * 2019-01-29 2023-09-08 活力科技私人有限公司 用于鞋类的鞋垫

Also Published As

Publication number Publication date
AU2114101A (en) 2001-04-30

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