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WO1991001659A1 - Chaussure avec pointe a courbe negative pour sports sollicitant intensivement les muscles du pied - Google Patents

Chaussure avec pointe a courbe negative pour sports sollicitant intensivement les muscles du pied Download PDF

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Publication number
WO1991001659A1
WO1991001659A1 PCT/US1990/004524 US9004524W WO9101659A1 WO 1991001659 A1 WO1991001659 A1 WO 1991001659A1 US 9004524 W US9004524 W US 9004524W WO 9101659 A1 WO9101659 A1 WO 9101659A1
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WO
WIPO (PCT)
Prior art keywords
shoe
sole
heel
foot
wearer
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.)
Ceased
Application number
PCT/US1990/004524
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English (en)
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1991001659A1 publication Critical patent/WO1991001659A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • 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
    • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
    • 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
    • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
    • A43B13/146—Concave end portions, e.g. with a cavity or cut-out portion

Definitions

  • the present invention relates generally to athletic footwear. More particularly the invention provides a shoe having negative toe rocker induced by a fiber reinforced sole preloaded arcuately downward from the heel to the toe in combination with staggered instep lacing and heel engaging pads resulting in a shoe providing mechanical advantage to the wearer when participating in sports requiring significant muscle strength in the foot.
  • the positive rocker of the shoe allows the sole and upper of the shoe to bend upwardly with the toes.- Little or no mechanical support is provided by the shoe to assist the plantar muscles of the foot and the other flexor muscles in the lower calf of the leg which flex the toes and point the foot. If anything, the plantar muscles of the foot must work against the sole of the shoe in the direction flattening the sole which is the direction of force for launching the foot during running or walking.
  • High speed sprinting and high jumping or pole vaulting which are the ultimate extensions of athletic endeavors of this kind place significant strain on the muscles of the foot.
  • the athlete employees the foot muscles as well as the muscles of the lower calf to launch the foot and as a result the leg and the remainder of the body from the ground.
  • Normal track shoes for running or jumping provide only limited mechanical advantage. Energy absorbed in the resilient sole of most of these shoes is partially returned by the rebound of the material of the sole. However, the spring constant and length of compression are limited by the depth of the sole of the shoe. Consequently, conversion of the kinetic energy available from the foot striking the ground to potential energy stored in the sole of the shoe and then the reconversion to kinetic energy is severely limited.
  • Another sport requiring significant foot strength is rock climbing.
  • the athlete engaged in a climb with a high degree of difficulty must rely on hand holds and toe holds which are very small.
  • the toe hold is often engaged by only a very small part of the forward-most portion of the sole on the climbing boot.
  • the boot tends to flex upwardly at the toe providing minimal support.
  • the entire weight of the climber resting on the foot must therefore be supported by the plantar muscles of the foot and the flexor muscles for the foot located in the lower calf of the leg.
  • the majority of these muscles- are relatively small muscles in the human body and consequently are placed under great stress in this type of endeavor.
  • Rock climbers often train with very light shoes having almost no sole called climbing slippers to strengthen the muscles required for high difficulty climbs.
  • the prior art approach to assisting the climber has been to stiffen the sole of the positive rocker climbing shoe to prevent the sole from bending upwardly thereby reducing somewhat the load on the climber's foot when stationary.
  • the muscles in the climber's foot must not only support the climber's weight but work against the stiffened sole when the climber is extending upward for the next handhold or foothold.
  • increased stiffness in the sole reduces the amount of feeling or sensitivity the climber has in the foot to "feel" the foot hold in the rock.
  • the present invention is a shoe having a resilient sole which arches downwardly from the heel to the toe in a preloaded condition.
  • the sole pliably resists flattening or torquing.
  • the upper portion of the shoe which is attached to the sole is tightened across the instep by way of alternately staggered tightening means which may be laces or straps extending between medial and lateral portions of the upper.
  • alternately staggered tightening means which may be laces or straps extending between medial and lateral portions of the upper.
  • In the heel portion of the upper means for gripping the heel without unduly impinging on the achilles tendon are provided which prevent extraction of the heel from the shoe when the wearer's weight is placed on the sole of the shoe at the toes thereby tending to flatten the sole.
  • This combination provides for absorbing the kinetic energy in the sole due to running or jumping which causes the sole to flatten, converting the kinetic energy to potential energy which may then be returned on rebound. - The muscle force from the foot of the wearer necessary to launch the foot is thereby reduced.
  • FIG. 2 A shoe employing a first embodiment of the present invention is shown in FIG. 2.
  • the sole 10 is downwardly arched from a heel end 12 to a toe end 14.
  • the sole is resilient and formed in the arcuate configuration to pliably resist flattening when the wearer places the weight on the forward portion of the sole generally designated 16 between the ball of the foot and the toe end of the sole.
  • the upper 18 of the shoe has a lace closure in the embodiment shown which comprises holes 20 in the material of the upper and laces 22.
  • the lips 24 of the upper close over a tongue 25 to tighten the upper over the instep of the wearer.
  • a standard padded tongue for protecting the instep of the foot may be employed.
  • the holes are spaced oppositely on the lips of the closure and staggered alternately over the instep of the shoe in a first plurality of upper holes 26 proximate the lips of the closure and a second plurality of lower holes 28 distal the lips of the closure as best seen in FIG. 3.
  • the lips of the closure contain cutouts 30 intermediate the upper holes which extend from the edge of the lip to a point adjacent each of the lower holes.
  • An elastic web 32 is sewn into each cutout.
  • a rand 34 and quartercap 36 of abrasion resistant material cover the toe and quarter of the upper respectively.
  • a vent 38 of porous mesh material is provided in one or both sides of the upper to provide for cooling of the shoe.
  • the exploded cutaway of the shoe shown in FIG. 4 further illustrates construction of the embodiment shown.
  • the sole of the shoe comprises an inner sole 40 preformed in the negative rocker arch to pliably resist flattening of the sole.
  • the preformed inner sole may be fabricated from a number of materials.
  • the inner sole must have some structural rigidity, however, remain pliable enough for the shoe sole to flatten or flex slightly.
  • a structural plastic such as polyurethane or polyethylene molded in the arched preload configuration may be employed.
  • the inner sole may extend the full length from the toe end to the heel end of the sole or extend part way from the toe end under the arch of the foot to provide the desired mechanical support or kinetic energy absorption depending upon application.
  • Those skilled in the art will recognize alternate materials and configurations for the composite of the inner sole such as fiberglass, kevlar or other aramid fiber with various matrix materials tailored for the particular application of the shoe.
  • An outer sole 42 is attached to the inner sole to provide the actual contact surface of the sole.
  • a material having a high coefficient of friction such as a composition rubber is employed.
  • Stealth, Stealth II or Stealth IV rubber (trademarks of 5.10, Redlands, California) may be employed.
  • Running or track shoes may employ nylon or other synthetic material, or canvass.
  • various combinations of leather may be used.
  • the upper of the embodiment shown employs an inner layer 44 of soft pigskin leather for maximum durability and comfort which is overlaid by a second layer of fine grain leather 4 6.
  • the inner and outer sole, upper, rand and quarter cover may be joined by combinations of stitching and adhesive as known to those skilled in the art.
  • the mechanical advantage provided by the preloaded downward arch in the sole allows design flexibility in the athletic shoe for optimum performance.
  • the downward arch preload may be accomplished through the use of an inner sole of resilient structural material and an outer sole may be provided having an impact absorption properties to dampen shock on the wearer's foot and leg or provide additional kinetic to potential energy conversion by rebound design.
  • the use of the structural preload allows reduction in thickness of the sole.
  • the outer sole may be optimized for impact reduction which may be accomplished in a reasonably thin layer while kinetic to potential energy conversion is accomplished in the preloaded inner sole. This eliminates the thickness typically required in a rebound type sole for absorbing and releasing energy due to foot impact.
  • FIG. 4 An additional element of the invention is best seen in FIG. 4.
  • the embodiment of the invention shown in FIG. 4 provides a pad 48 which extends inwardly from both the medial " and lateral sides of the upper.
  • the pad is located and sized to be accommodated in the depression in the heel of the wearer posterior to the lateral and medial malleolus.
  • the pad in the tightened upper in effect grips the medial and lateral process of the calcaneus or heel bone.
  • FIG. 5 A feature of the invention which is of particular use in a rock climbing shoe is best shown in FIG. 5.
  • the shoe is sized to be extremely tight on the foot of the wearer.
  • the center of rotation for bending of the shoe is located in the sole at point A, when weight is placed on the toe portion of the shoe causing the preloaded toe portion of the sole to move from location 16 to location 16 A as shown in phantom in FIG. 5. Depiction in the drawing is exaggerated for clarity.
  • the rotation of the sole is about point A.
  • the rotation of the foot of the user is about a point in the interior of the foot, based on the joint locations, designated point B.
  • the staggered lacing holes previously described contribute to maintaining uniform tension in the upper across the instep of the wearer. Tension in the laces in the alternating upper and lower holes is maintained essentially constant in both the loaded and unloaded position of the shoe. If the laceholes were colinear, as in conventional shoes, tension in ' the laces would vary between alternating holes causing discomfort to the wearer and possible undesirable wear of the laces.
  • the laces employed in the embodiment shown in the drawings may be replaced by velcro straps of alternating lengths attaching to the upper at the positions of the upper and lower laceholes or alternate similar closure techniques.
  • the embodiment of the invention in rock climbing shoes is particularly advantageous in that the toe down preload of the sole also provides natural positioning of the foot and toes for use as a "hook" in over-hanging rock maneuvers.
  • the toe down shape is additionally the natural shape for "jamming" in cracks.
  • Prior art climbing shoes or boots required that the climber fight the positive rocker of the sole to point the toe for jamming in the crack.
  • Muscle control of the foot is somewhat degraded in the supinated position of the foot ' used in crack jamming which further debilitates the climber when fighting the positive rocker in prior art shoes.
  • the present invention provides optimum natural positioning of the foot. ' ⁇ '

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

On a mis au point une chaussure avec pointe à courbe avant négative, laquelle augmente les performances athlétiques dans des sports sollicitant intensivement les muscles du pied. La courbe avant négative de la chaussure est induite par une semelle intérieure structurellement résiliente, préformée pour placer la semelle (10) de la chaussure dans un état préchargé arqué vers le bas du talon (12) aux orteils (14). Une empeigne (18) comprend un laçage (22) de coup-de-pied en quinconce, ainsi que des découpures (30) contenant une bande élastique (32) destinée à répartir et à maintenir de manière régulière la tension de fermeture de la chaussure, ainsi que des coussinets venant au contact du talon et situés sur la surface intérieure des parties médianes et latérales du talon de l'empeigne, destinés à maintenir le pied de l'utilisateur dans la chaussure. La semelle préchargée vers le bas procure un avantage mécanique à l'utilisateur dans des sports nécessitant une force musculaire significative dans le pied. La conversion de l'énergie cinétique en énergie potentielle par l'applatissement de la semelle préchargée dans des conditions statiques transférant la charge des muscles du pied aux muscles plus forts du mollet, augmente les performances athlétiques.
PCT/US1990/004524 1989-08-11 1990-08-10 Chaussure avec pointe a courbe negative pour sports sollicitant intensivement les muscles du pied Ceased WO1991001659A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39248589A 1989-08-11 1989-08-11
US392,485 1989-08-11

Publications (1)

Publication Number Publication Date
WO1991001659A1 true WO1991001659A1 (fr) 1991-02-21

Family

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Family Applications (1)

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PCT/US1990/004524 Ceased WO1991001659A1 (fr) 1989-08-11 1990-08-10 Chaussure avec pointe a courbe negative pour sports sollicitant intensivement les muscles du pied

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WO (1) WO1991001659A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832634A (en) * 1995-12-04 1998-11-10 Fila Sport S.P.A. Sports footwear with a sole unit comprising at least one composite material layer partly involving the sole unit itself
US5918338A (en) * 1995-12-04 1999-07-06 Global Sports Technologies, Inc. Sports footwear with a sole unit comprising at least one composite material layer partly involving the sole unit itself
US7016867B2 (en) 2000-03-10 2006-03-21 Lyden Robert M Method of conducting business including making and selling a custom article of footwear
US7107235B2 (en) 2000-03-10 2006-09-12 Lyden Robert M Method of conducting business including making and selling a custom article of footwear

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525848A (en) * 1924-04-22 1925-02-10 Barney S Bonaventure Toe slipper
US1620797A (en) * 1925-03-13 1927-03-15 Barney S Bonaventure Arch support
US1813561A (en) * 1929-03-01 1931-07-07 Capezio Salvatore Ballet slipper
US1844885A (en) * 1930-07-26 1932-02-09 Professional Shoe Corp Ballet slipper and method of making the same
US2311996A (en) * 1940-11-28 1943-02-23 Thomas Taylor & Sons Inc Footwear
US3797137A (en) * 1972-11-13 1974-03-19 Pirvoette Projects Inc Ballet slipper
US4070770A (en) * 1975-09-19 1978-01-31 Red Wing Shoe Company, Inc. Insole for rock climbing shoe
US4199878A (en) * 1977-08-17 1980-04-29 Hugo Wossner Ballet and toe-dance shoe
US4413431A (en) * 1982-06-11 1983-11-08 Puma-Sportschuhfabriken Rudolf Dassler Kg Athletic shoe upper construction
FR2536964A1 (fr) * 1982-12-06 1984-06-08 Noel France Sa Chaussure de loisirs perfectionnee
US4553342A (en) * 1983-04-08 1985-11-19 Nike, Inc. Article of footwear with an adjustable width, adjustable tension closure system
US4611413A (en) * 1985-04-03 1986-09-16 Northwest Podiatric Laboratories, Inc. Reinforced orthotic insert
US4716663A (en) * 1987-04-14 1988-01-05 Oli Steinhauser Climbing shoe
US4726126A (en) * 1985-06-10 1988-02-23 Puma Ag Rudolf Dassler Sport Shoe, particularly intended for rehabilitation purposes
US4901453A (en) * 1988-03-18 1990-02-20 Gaynor Elizabeth H Ballet slipper and method of manufacturing a ballet slipper
US4914837A (en) * 1989-01-03 1990-04-10 Rieffel Donald W Sandal with contained granular material to provide a pad for a person's foot

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525848A (en) * 1924-04-22 1925-02-10 Barney S Bonaventure Toe slipper
US1620797A (en) * 1925-03-13 1927-03-15 Barney S Bonaventure Arch support
US1813561A (en) * 1929-03-01 1931-07-07 Capezio Salvatore Ballet slipper
US1844885A (en) * 1930-07-26 1932-02-09 Professional Shoe Corp Ballet slipper and method of making the same
US2311996A (en) * 1940-11-28 1943-02-23 Thomas Taylor & Sons Inc Footwear
US3797137A (en) * 1972-11-13 1974-03-19 Pirvoette Projects Inc Ballet slipper
US4070770A (en) * 1975-09-19 1978-01-31 Red Wing Shoe Company, Inc. Insole for rock climbing shoe
US4199878A (en) * 1977-08-17 1980-04-29 Hugo Wossner Ballet and toe-dance shoe
US4413431A (en) * 1982-06-11 1983-11-08 Puma-Sportschuhfabriken Rudolf Dassler Kg Athletic shoe upper construction
FR2536964A1 (fr) * 1982-12-06 1984-06-08 Noel France Sa Chaussure de loisirs perfectionnee
US4553342A (en) * 1983-04-08 1985-11-19 Nike, Inc. Article of footwear with an adjustable width, adjustable tension closure system
US4611413A (en) * 1985-04-03 1986-09-16 Northwest Podiatric Laboratories, Inc. Reinforced orthotic insert
US4726126A (en) * 1985-06-10 1988-02-23 Puma Ag Rudolf Dassler Sport Shoe, particularly intended for rehabilitation purposes
US4716663A (en) * 1987-04-14 1988-01-05 Oli Steinhauser Climbing shoe
US4901453A (en) * 1988-03-18 1990-02-20 Gaynor Elizabeth H Ballet slipper and method of manufacturing a ballet slipper
US4914837A (en) * 1989-01-03 1990-04-10 Rieffel Donald W Sandal with contained granular material to provide a pad for a person's foot

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832634A (en) * 1995-12-04 1998-11-10 Fila Sport S.P.A. Sports footwear with a sole unit comprising at least one composite material layer partly involving the sole unit itself
US5918338A (en) * 1995-12-04 1999-07-06 Global Sports Technologies, Inc. Sports footwear with a sole unit comprising at least one composite material layer partly involving the sole unit itself
US7016867B2 (en) 2000-03-10 2006-03-21 Lyden Robert M Method of conducting business including making and selling a custom article of footwear
US7107235B2 (en) 2000-03-10 2006-09-12 Lyden Robert M Method of conducting business including making and selling a custom article of footwear

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