WO2015095839A1 - Cambrion de talon haut et chaussures à talon haut incorporant le cambrion - Google Patents

Cambrion de talon haut et chaussures à talon haut incorporant le cambrion Download PDF

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Publication number
WO2015095839A1
WO2015095839A1 PCT/US2014/071745 US2014071745W WO2015095839A1 WO 2015095839 A1 WO2015095839 A1 WO 2015095839A1 US 2014071745 W US2014071745 W US 2014071745W WO 2015095839 A1 WO2015095839 A1 WO 2015095839A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
heel
shoe
user
arch
Prior art date
Application number
PCT/US2014/071745
Other languages
English (en)
Inventor
Theodore C. SOUTHERN
Navjeet K. SINGH
Original Assignee
Sthira, Inc.
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 Sthira, Inc. filed Critical Sthira, Inc.
Publication of WO2015095839A1 publication Critical patent/WO2015095839A1/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
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/141—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form having an anatomical or curved form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/22—Supports for the shank or arch of the uppers
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener
    • 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
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/142—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the medial arch, i.e. under the navicular or cuneiform bones
    • 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
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/1425—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the ball of the foot, i.e. the joint between the first metatarsal and first phalange
    • 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
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/143—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the lateral arch, i.e. the cuboid bone
    • 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
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone

Definitions

  • the present invention relates generally to high-heeled shoes and more particularly to a shoe shank for high-heeled shoes.
  • High-heeled shoes are very popular for their aesthetic appeal. However, high-heel shoes are typically not very comfortable, and can cause pain in a wearer's foot when worn for prolonged periods of time.
  • the change of the center of coronal balance pushes the weight of the body uncomfortably onto the metatarsals, sesamoids or floating bones of the foot, instead of a natural distribution of force onto the heel bone.
  • the center of gravity of the body is along the heel bone.
  • the maximum weight of the body is on the heel bone. Since the purpose of the heel bone is to transfer the body weight to the ground, there is minimal discomfort generated while wearing flat-heeled shoes or while standing barefooted.
  • U.S. Pat. No. 5,782,015 describes a high-heeled shoe in which the heel seat is lowered and the toe box is raised to distribute the weight of the user back towards the heel.
  • this design fails to address the foundation of the heel architecture, i.e., the heel shank, and simply changes the shape of the materials surrounding the heel shank. By addressing only the shape of the materials surrounding the heel shank and failing to address the shank itself, this solution is not easily applied to a broad range of styles of high-heeled shoes.
  • the present invention may be embodied in a shoe shank for use in a high-heeled shoe.
  • the shoe shank comprises an arch support that is configured to provide support to a user's foot arch and extend at an upward angle with respect to the ground when the shoe shank is used in a high- heeled shoe.
  • the arch support is designed in order to approximate the shape of the user's foot arch and in some embodiments may have a fluted portion extending along the length of the arch support.
  • the arch support has an inner arch support portion and an outer arch support portion. The inner arch support portion is raised higher than the outer arch support portion.
  • a heel support configured to provide support to the user's foot heel is connected to the rear portion of the arch support.
  • the heel support and the arch support form a rear curve having a negative curvature.
  • a front support connected to a front portion of the arch support is configured to provide support to the ball of the user's foot.
  • the front support and the arch support form a front curve having a positive curvature.
  • a dampening member may be disposed proximate to the heel support, wherein the dampening member is designed to reduce the impact forces communicated from the user's heel to the heel support of the shoe shank.
  • the present invention may also be embodied in a high-heeled shoe incorporating the shoe shank described above.
  • the high-heeled shoe may comprise a sole having a top surface and a bottom surface, a heel proximate the rear of the sole, and the shoe shank described above positioned between the top surface and the bottom surface of the sole.
  • FIGS. 1 a and 1 b illustrate the shift in the center of gravity of a body caused due to use of a conventional high-heeled shoe as compared to flat heel shoes.
  • FIG. 2 illustrates a modified high-heeled shoe with a modified shoe shank, in accordance with an embodiment of the present invention.
  • FIG. 3 provides a perspective view of the modified shoe shank of FIG. 2, in accordance with an embodiment of the present invention.
  • FIG. 4 illustrates the different layers constituting a sole of the modified high-heeled shoe, according to an embodiment of the present subject matter.
  • FIGS. 5a and 5b illustrate repositioning of the center of gravity of a body wearing a conventional high-heeled shoe (2a) and the modified high- heeled shoe of FIG. 2.
  • FIG. 6 further illustrates the shift in the center of gravity of a body while wearing the modified high-heeled shoe of FIG. 2.
  • FIG. 7 is a right-side perspective view of another embodiment of a modified shoe shank in accordance with the present invention.
  • FIG. 8 is a right-side view of the modified shoe shank of FIG. 7.
  • FIG. 9 is a front view of the modified shoe shank of FIG. 7.
  • FIG. 10 is a longitudinal cross-sectional view taken along the center-line of the modified shoe shank of FIG. 7.
  • the present invention discloses a shoe shank for a high-heeled shoe, wherein the shoe shank enables shifting of the user's center of gravity towards the heel bone.
  • the shoe comprises a sole having a top surface and a bottom surface, a heel proximate the rear of the sole and the shoe shank placed between the top surface and the bottom surface of the sole.
  • the shoe shank may comprise an arch support, a heel support and a front support.
  • the arch support is configured to provide support to the user's foot arch.
  • the heel support is connected to a rear portion of the arch support and is designed to provide support to the heel of the user's foot.
  • the front support is connected to a front portion of the arch support and is designed to provide support to the bail of the user's foot.
  • the front support, the heel support, or both may be arranged so that they are substantially horizontal with respect to the ground when the shoe shank is used in a high-heeled shoe.
  • a dampening member in the form of a spring is preferably disposed proximate to the heel support. The dampening member reduces the impact forces communicated from the user's heel to the heel support of the shoe shank.
  • Figure 1 elaborates on the variation in the center of gravity with respect to the heel height.
  • Figure 2 elaborates on the correction in center of gravity of the user after using the shoe with the claimed shoe shank as compared to the conventional high- heeled shoe.
  • Figures 3 through 8 elaborate on the workings of the disclosed shoe shank and the high-heeled shoe incorporating the shoe shank.
  • FIGS. 1 a and 1 b thereof there is shown an illustration of the shift in the center of gravity of a body caused by use of a conventional high-heeled shoe 107 as compared to a flat heel shoe 103.
  • a user wearing a flat- heeled shoe has a center of gravity 101 that is positioned over the heel bone 105. This is because the foot remains parallel to surface of the ground and, as a result, the user's legs are substantially perpendicular to the ground while wearing the flat heel shoe 103.
  • the majority of the user's body weight is concentrated on the heel bone of the foot.
  • the heel bone 105 is strong enough to sustain the entire weight of the body.
  • the user is comfortable wearing the flat-heeled shoe 103.
  • FIG 2 illustrates a modified high-heeled shoe 201 in accordance with an embodiment of the present disclosure.
  • the modified high-heeled shoe 201 comprises a modified shoe shank 301 , a high heel 303, straps 305 and a sole 307.
  • the sole 307 has a top surface and a bottom surface.
  • the modified shoe shank 301 is positioned between the top surface and the bottom surface of the sole 307.
  • the sole 307 extends over the entire body of the high-heeled shoe 201 and completely covers the shoe shank 301 .
  • the high heel 303 is proximate the rear of the sole 307.
  • the straps 305 are attached to the sole 307 and are configured to hold the foot above the sole 307.
  • the modified shoe shank 301 along with other aspects of the modified high-heeled shoe 201 , result in a shifting of the wearer's center of gravity towards the heel bone.
  • the aspects of the modified shoe shank 301 and the modified high-heeled shoe 201 that result in shifting of the center of gravity will now be discussed in greater detail.
  • FIG. 3 illustrates the different components of the modified shoe shank 301 in greater detail.
  • the modified shoe shank 301 comprises a heel support 401 , an arch support 403, and a front support 405.
  • the heel support 401 is connected to the rear portion of the arch support 403 to provide support to the heel of the user's foot.
  • the heel support 401 and the arch support 403 form a rear curve having a negative curvature. The negative curvature provides a more natural platform for the heel of the foot to rest in place.
  • the negative curvature formed by the heel support 401 and the arch support 403 allows a user to lean back onto their heel, moving the center of gravity of the user backwards towards the heel bone.
  • the front support 405 is connected to the front portion of the arch support 403 such that the front support 405 provides support to the ball of the user's foot.
  • the front support 405 and the arch support 403 form a front curve having a positive curvature. The positive curvature holds the ball of the foot at a comfortable position.
  • the front support 405 and the heel support 401 are substantially horizontal with respect to the ground surface.
  • the front support 405 and the heel support 401 may deviate from horizontal and still fall within the bounds of the present invention.
  • the heel support 401 in FIG. 6 is at an angle that is slightly higher than horizontal
  • the front support 405 is at an angle slightly lower than horizontal. The deviation from horizontal may be slight as shown in Fig. 6 or in some cases more substantial.
  • the radius of the negative curvature formed by the heel support 401 and the arch support 403, is such that it allows the user to lean back onto their heel so as to move the center of gravity of the user backwards towards the heel bone, while at the same time not being so small as to create a new pressure point between the user's arch and heel.
  • the heel support 401 provides support for a user's heel
  • the front support 405 provides support for the ball of the user's foot.
  • the arch support 403 is configured to provide support to the user's foot arch and is shaped to approximate the shape of the user's foot arch. The shape of the arch support provides greater support than that of a convention high-heel shank.
  • the arch support 403 has an inner arch support portion 409 and an outer arch support portion 407, and is longitudinally asymmetrical.
  • the inner arch support portion 409 is raised higher than the outer arch support portion 407 so as to approximate the arch formed in a user's foot arch.
  • a fluted portion 413 may extend along the length of the arch support 403 to provide strength and rigidity to the modified shoe shank 301 .
  • a spring portion 41 1 which acts as a dampening member, is disposed proximate the heel support 401 .
  • the spring portion 41 1 reduces the impact forces communicated from the user's heel to the heel support 401 of the shoe shank 301 .
  • the spring portion 41 1 may be formed integral with the heel support 41 1 and dampening may be provided at the spring portion 41 1 by a combination of the shape of the heel support, the thickness of the heel support, and the material used in the heel support 401 .
  • the spring portion 41 1 comprises an arched area that is intended to flex when substantial force is exerted by the user's heel.
  • the flexing of the spring portion 41 1 absorbs some of the force communicated by the user's heel and provides a dampening effect.
  • the spring portion 41 1 adsorbs the forces exerted on the user's foot when the user is walking, taking steps, standing, jumping or performing any action in which a substantial force is exerted on the user's foot.
  • the dampening property of the spring support absorbs some of the force acting thereon and less force is imparted on the user's foot.
  • a gel material such as a silica gel, thermoplastic elastomer (TPE), and/or thermoplastic polyurethane (TPU) or a similar compound may be used to cover the spring portion 41 1 .
  • the dampening member may comprise a layer of gel material, such as a silica gel, TPE and/or TPU or similar compound disposed in the sole 201 above the heel support 401 .
  • the viscoelastic properties and thickness of the gel layer should be such as to provide the desired dampening properties for the dampening member.
  • the modified shoe shank 301 may comprise ballistic grade plastics, high carbon steel materials, carbon fiber reinforced plastic, or other high strength materials that are able to support a user's weight.
  • FIG. 4 provides a close-up view of the sole 307 of the modified high-heeled shoe 201 .
  • the sole 307 comprises a top surface 601 , silicone gel layer 603, a sorbathane layer 605, a leather outsole layer 607, and a urethane tread layer 609.
  • the shoe shank 301 is positioned between the top and bottom surfaces of the sole 307.
  • the modified shoe shank 301 is positioned between the sorbathane layer 605 and the silicone gel layer 603.
  • the combination of all these layers, along with the novel shape of the modified shoe shank 301 improve the shock absorbing and weight distribution properties of the modified high-heeled shoe 201 .
  • the overall shock absorbing capacity of the shoe is enhanced by 15 to 20% with this combination of layers when compared to a conventional sole.
  • the urethane tread layer 609 acts as the outermost layer of the sole and protects the leather outsole layer 607 from external wear and tear.
  • the urethane tread layer 609 is designed to add traction and additional shock absorbance.
  • the top surface 601 lies against the skin of the foot and may be formed of a high-friction material so as to prevent slipping of a user's foot within the shoe.
  • the top surface 601 may be flocked with cotton or trace silver as an antimicrobial agent.
  • the silicone gel layer 603 along with the sorbothane layer 605 provide a smooth surface for the foot to rest and enables greater distribution of weight across the heel support, arch support, and front support so that the weight of the user is not concentrated on the ball of the user's foot.
  • FIGS. 5a and 5b illustrate repositioning of a user's center of gravity when wearing a modified high-heeled shoe having a modified shoe shank, in accordance with an embodiment of the present invention.
  • Figure 5a presents a convention high-heeled shoe. While wearing the conventional high-heeled shoe 107, the center of gravity 101 is along the ball of the foot.
  • the angle ⁇ 0 represents the angle of the leg 505 from the normal 500, drawn perpendicular to the ground, while wearing the conventional high-heeled shoe 107.
  • the angle ⁇ ' represents the angle made by the leg 505 with the normal 500, drawn perpendicular to the ground, while wearing the modified high- heeled shoe 201 having a modified shoe shank.
  • Figure 6 further illustrates the variation in the center of gravity 101 of a body while wearing the modified high-heeled shoe 201 of height h 3 .
  • ⁇ ' represents the line of center of gravity 101 while wearing a conventional high-heeled shoe.
  • Lines xi , X2, X3 represent the user's center of gravity 101 while wearing a modified high-heeled shoe 201 having a modified shoe shank 301 for different heel heights H (h 3 , h 2 , hi).
  • H heel height
  • the center of gravity is considerably closer to the heel bone as compared to the position of center of gravity ⁇ ' in the case of a conventional high-heeled shoe 107 of height h 3 .
  • the shift in the center of gravity 101 is substantially provided by the shape of the modified shoe shank 301 , as the arch support 403 of the shoe shank 301 is shaped to provide greater support to the arch of a user's foot, and the heel support 401 provides an appropriate platform for the heel to rest, allowing the user to shift their weight backwards towards their heel bone, and away from the ball of their foot.
  • the amount of weight placed on the ball of the user's foot is reduced by at least 5% to 20% as compared to the weight distribution in a conventional high-heeled shoe of the same height.
  • FIGS. 7-10 illustrate a modified shoe shank 601 in accordance with another embodiment of the present disclosure.
  • the shoe shank 601 can be used substituted for the shoe shank 301 in high-heeled shoe 201 . Accordingly, like items in shoe shank 601 are designated with same reference numbers in order to avoid duplicative description.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

L'invention concerne un cambrion de chaussure modifié pour une chaussure à talon haut. Le cambrion de chaussure comprend un soutien de voute plantaire conçu pour fournir un soutien à la voute plantaire d'une utilisatrice, un renfort de talon relié à la partie arrière du soutien de voute plantaire pour fournir un soutien au talon de l'utilisatrice, et un support avant relié à une partie avant du soutien de voute plantaire afin de fournir un soutien à la pointe du pied de l'utilisatrice. Le soutien de voute plantaire et le renfort de talon forment une courbe arrière à incurvation négative, et le soutien de voute plantaire et le support avant forment une courbe avant à incurvation positive. Une partie ressort peut être disposée à proximité du renfort de talon, cette partie étant conçue pour réduire les forces de choc communiquées du talon de l'utilisatrice au renfort de talon du cambrion de chaussure. L'invention concerne également une chaussure à talon haut incorporant le cambrion modifié.
PCT/US2014/071745 2013-12-19 2014-12-19 Cambrion de talon haut et chaussures à talon haut incorporant le cambrion WO2015095839A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361918509P 2013-12-19 2013-12-19
US61/918,509 2013-12-19

Publications (1)

Publication Number Publication Date
WO2015095839A1 true WO2015095839A1 (fr) 2015-06-25

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US (1) US20170143074A1 (fr)
WO (1) WO2015095839A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017031090A1 (fr) * 2015-08-14 2017-02-23 Thesis Couture, Inc. Chaussure à talon haut
US9781973B2 (en) 2015-08-14 2017-10-10 Thesis Couture, Inc. High heel shoe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200113277A1 (en) * 2018-10-12 2020-04-16 Jazmine Kionna, LLC Systems and methods directed to footwear with adaptations for improved usability
US20230089617A1 (en) * 2021-09-20 2023-03-23 Deckers Outdoor Corporation Sole including multiple support members

Citations (6)

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US1432160A (en) * 1922-10-17 Shank stiitener
US1613401A (en) * 1921-12-13 1927-01-04 J J Grover S Sons Company Shoe-shank stiffener
US2811791A (en) * 1956-12-24 1957-11-05 Ivan E Cox Weight distributing shoe shank
US2817166A (en) * 1956-01-09 1957-12-24 Florida L Riggs Shankpiece
US3103075A (en) * 1961-07-06 1963-09-10 Albert F Paulding Stiffener support for shoe soles
US20090188131A1 (en) * 2008-01-24 2009-07-30 Brown Shoe Company, Inc. Cushioned shoe construction

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Publication number Priority date Publication date Assignee Title
US4702255A (en) * 1985-06-17 1987-10-27 Schenkl Joseph L Orthopedic apparatus
CA2034300C (fr) * 1990-02-16 1998-04-14 Dennis N. Brown Orthese pour chaussures
AU4045093A (en) * 1992-04-03 1993-11-08 Langer Biomechanics Group Inc., The High-heeled shoe orthotic device
US20040211086A1 (en) * 2003-04-23 2004-10-28 Hbn Shoe, Llc Device for high-heeled shoes
US7854075B2 (en) * 2006-07-13 2010-12-21 Cheryl Kosmas Orthotic device for open shoes
US20090007455A1 (en) * 2007-07-03 2009-01-08 Scott Montgomery High heel shoe of improved comfort
RU2432890C1 (ru) * 2007-09-28 2011-11-10 Анджела СИНГЛТОН Система обувной опорной стельки
US20100146816A1 (en) * 2008-12-12 2010-06-17 Schering-Plough Healthcare Products, Inc Footwear insole for high heel shoes

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US1432160A (en) * 1922-10-17 Shank stiitener
US1613401A (en) * 1921-12-13 1927-01-04 J J Grover S Sons Company Shoe-shank stiffener
US2817166A (en) * 1956-01-09 1957-12-24 Florida L Riggs Shankpiece
US2811791A (en) * 1956-12-24 1957-11-05 Ivan E Cox Weight distributing shoe shank
US3103075A (en) * 1961-07-06 1963-09-10 Albert F Paulding Stiffener support for shoe soles
US20090188131A1 (en) * 2008-01-24 2009-07-30 Brown Shoe Company, Inc. Cushioned shoe construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017031090A1 (fr) * 2015-08-14 2017-02-23 Thesis Couture, Inc. Chaussure à talon haut
US9781973B2 (en) 2015-08-14 2017-10-10 Thesis Couture, Inc. High heel shoe

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