EP4140346A1 - Chaussure dotée d'une plaque intégrée dans la semelle - Google Patents

Chaussure dotée d'une plaque intégrée dans la semelle Download PDF

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Publication number
EP4140346A1
EP4140346A1 EP21193662.0A EP21193662A EP4140346A1 EP 4140346 A1 EP4140346 A1 EP 4140346A1 EP 21193662 A EP21193662 A EP 21193662A EP 4140346 A1 EP4140346 A1 EP 4140346A1
Authority
EP
European Patent Office
Prior art keywords
plate
toe
area
sole
edge
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.)
Pending
Application number
EP21193662.0A
Other languages
German (de)
English (en)
Inventor
Sebastian Bär
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baer GmbH
Original Assignee
Baer GmbH
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 Baer GmbH filed Critical Baer GmbH
Priority to EP21193662.0A priority Critical patent/EP4140346A1/fr
Publication of EP4140346A1 publication Critical patent/EP4140346A1/fr
Pending 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
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • 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
    • A43B7/145—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 toes, i.e. the phalanges

Definitions

  • the invention relates to a sole for a shoe, on or in which a plate is arranged or integrated.
  • the invention also relates to a shoe with such a sole.
  • the shoe can in particular be a sports shoe or a running shoe.
  • Shoes with a plate integrated in the sole are known from the prior art.
  • the U.S. 5,052,130A a sports shoe with a spring plate in combination with a viscoelastic midsole.
  • the spring plate extends substantially the length of the sole from the medial side of the heel, over the arch of the foot, and over the toes.
  • the plate is arranged in the toe area below all five toes.
  • energy is stored in the plate and subsequently released again by springing back when the foot lifts off.
  • propulsion is supported by the stored spring energy.
  • the material of the plate is fiber reinforced plastic. Similar concepts are discussed in the EP 0272082 B1 and the U.S. 7,401,422 B1 suggested.
  • the U.S. 7,401,422 B1 shows in one embodiment a plate consisting of a forefoot part and a rear foot part connected thereto.
  • the forefoot portion has two or more extensions to provide selective toe support.
  • the US 1,847,973A deals with the problem that some people suffer from a shortening of the first metatarsal, so that the metatarsals of the other toes have to carry the load of the body weight during walking, while the first metatarsal does not fulfill its intended function.
  • This stressful situation can be uncomfortable and even very painful for the patient.
  • This document therefore proposes placing a material of greater thickness under the ball of the big toe.
  • an even stronger plate or strip of metal or other material can be provided, which consists of a somewhat recessed position, extends over the head of the first metatarsal and under the big toe joint.
  • Shoes with a springy plate in the sole have the great advantage that the energy stored by elastic deformation of the plate is released when the foot lifts off, giving the runner additional drive, but the disadvantage is that this impairs the so-called wind-lass mechanism becomes.
  • the wind-lass mechanism causes dorsal flexion of the toes when the foot rolls off, especially and above all the big toe, shortens the distance from the lower metatarsal head to the heel bone by pulling on the plantar fascia, raising the arch of the foot and allowing the foot to take the step and propulsion is stabilized.
  • the toe musculature is no longer stressed as it is with natural stepping. This results in less strain on the calf muscles and Achilles tendon, which become progressively weaker as a result.
  • the invention is based on the object of specifying a shoe that supports the function of the wind-letting mechanism of the human foot.
  • the object is achieved with the shoe according to claim 1.
  • Advantageous developments result from the dependent claims, the description and the figures.
  • the invention is based on a sole for a shoe, in particular a sports shoe or running shoe.
  • the location information of elements of the sole or the plate used herein relates below to the anatomy of the human foot positioned as intended on the sole.
  • the preposition “above” and “above” refers to the direction towards the sole of the foot.
  • the preposition “below” or “below” refers to the direction pointing from the sole of the foot.
  • proximal means towards the heel.
  • distal means towards the tips of the toes.
  • “Lateral” as used herein means toward the outside of the body.
  • “medial” means toward the median plane of the body.
  • “Dorsal” means toward the back of the foot.
  • a plate in particular an elastic or resilient plate, is arranged on or in the sole.
  • the plate may extend substantially the entire length of the sole portion or foot. At least the plate extends over a tarsal area a metatarsal area to a toe area of the sole.
  • the toe area of the sole is the area of the sole that lies below the toe bones.
  • the toe bones are the basic toe phalanges I to V (proximal phalanges I to V), the distal toe phalanges I to V (distal phalanges I to V) and the middle toe phalanges II to V (medial phalanges II to V).
  • the Roman numerals designate the toe, with I standing for the big toe (first toe) and V for the little toe (fifth toe), with the numerals II, III and IV denoting the toes in between in the corresponding order.
  • the metatarsal area of the sole is the area that underlies the area of the foot where the metatarsal bones I through V (ossa metatarsalia I through V) lie.
  • the tarsal region of the sole is the area underlying the tarsal root of the foot that includes the bones of the foot that lie proximal to the I through V metatarsal bones, such as the heel bone (calcaneus), cuneiform, cuneiform, kahn, and calcaneus jumping legs.
  • the plate extends in the toe area of the sole with its distal end at least as far as the area of the toe end phalanx I, ie the area that lies below the toe end phalanx I.
  • the plate preferably extends to the distal end of the toe end element I. Since the plate extends with its distal end at least into the area of the toe end element I, the energy stored by elastic deformation of the plate when stepping on the foot can be released when the foot lifts off to generate additional propulsion.
  • the plate is designed in such a way that it is arranged in the toe area of the sole essentially only in the area below the big toe, ie below the toe base phalanx I and the toe end phalanx I. This means that the plate is not arranged in the area under the toes II-V, ie under the end toe phalanges II to V, middle toe phalanges II to V and base toe phalanges II to V of the foot.
  • the big toe similar to walking without shoes—must exert the clearly predominant force for pushing off or propulsion.
  • the plate is configured in such a way that it follows the dorsiflexion of the big toe and/or during the dorsal flexion of the big toe the greatest elastic deformation of the plate takes place in the area below the metatarsophalangeal joint of the big toe, in particular also in the dorsal direction.
  • the plate has a lateral edge and a medial edge, ie a lateral boundary edge and a medial boundary edge.
  • the lateral edge of the plate is located in the toe area between the big toe (toe I) and the adjacent toe (toe II). This can cause the big toe to be supported by the plate and the immediately adjacent toe unsupported by the plate.
  • the lateral edge of the plate may extend slightly below the second toe, but - if at all - only so far that no significant supporting effect of the plate is exerted on the second toe.
  • the medial edge of the plate in the toe area of the sole may be approximately the same or congruent with the medial edge of the foot in the toe area.
  • the plate can be designed in the metatarsal area in such a way that it is arranged completely or substantially completely below the metatarsal bone I and/or only partially below the metatarsal bones II to V.
  • the plate extends in the metatarsal region so that it is not located under the distal heads of the II through V metatarsals.
  • the lateral edge of the plate in the metatarsal area can cross one or more or each of the metatarsal bones II to V, in particular in the middle or in their respective middle third.
  • the medial edge of the plate may roughly follow or correspond to the medial edge of the foot or sole of the foot in the midfoot region.
  • This arrangement of the plate in the metatarsal area can advantageously ensure that a biomechanically advantageous transition of the plate from the toe area to the tarsal area is created.
  • the plate may be formed in the tarsal region so that it is located entirely or substantially entirely beneath the tarsal.
  • the lateral edge of the sole may coincide with or follow the lateral edge of the foot or sole of the foot.
  • the medial edge of the sole may coincide with or follow the medial edge of the foot or sole of the foot.
  • the proximal end of the plate may extend, or at least substantially extend, to or beyond the proximal end of the heel bone.
  • the distal end of the plate forms a distal edge of the plate which preferably extends to or beyond the distal end of the toe pad I.
  • the center line of the plate from its distal end to the proximal end can have two opposite curvatures, ie an S-shape.
  • the plate can be curved in the toe area and preferably in the metatarsal area in such a way that the center of curvature or the centers of curvature lie laterally or at least towards the lateral side.
  • the plate can be curved in the tarsal area and preferably also in the metatarsal area in such a way that the center of curvature or the centers of curvature lie medial or at least in the medial direction.
  • the curvatures mentioned can meet at a turning point, which is preferably arranged in the metatarsal area.
  • the plate can have a stiffening structure at least in the metatarsal area and the toe area, which increases the flexural rigidity of the plate, particularly in the sagittal plane or a plane that is parallel to the sagittal plane, with respect to the dorsal flexion of the plate.
  • the elasticity of the plate in the metatarsal area and in the toe area is preferably dimensioned, in particular structurally, in such a way that it allows or supports the natural dorsal flexion of the big toe when the foot rolls over.
  • the plate is advantageously designed in such a way that it has a higher, in particular significantly higher, flexural rigidity in the area of the tarsus than in the metatarsal area and/or in the toe area.
  • the plate Due to the fact that the plate is arranged in the toe area only or essentially only under the big toe, this area of the plate can be arranged offset to the ankle joint in relation to the longitudinal axis of the foot. As a result, the plate also creates a moment that counteracts overpronation of the foot when rolling.
  • the stiffening structure can extend along the medial edge and/or a lateral edge of the plate.
  • the stiffening structure can be elongate or bead-shaped.
  • the stiffening structure can have a medial section and a lateral section.
  • the lateral section can be offset from the lateral edge of the plate, in particular in the metatarsal area and in the toe area, and can be configured in such a way that it follows the contour of the lateral edge of the plate.
  • the lateral portion can thus be "parallel" to the lateral edge of the plate, although the lateral edge and lateral portion may not necessarily be straight, but rather curved.
  • the medial portion may be located particularly in the midfoot and toe areas, offset from the medial edge of the plate and configured to follow the contour of the medial edge of the plate.
  • the medial section to put it simply, runs parallel to the medial edge of the plate.
  • the distal end of the plate forms a distal edge in the toe area.
  • the distal edge connects the medial and lateral edges of the plate, preferably such that the distal end of the plate is rounded from medial to lateral.
  • the stiffening structure may have a distal portion connecting the medial and lateral portions of the stiffening structure. The distal portion may also be offset from the distal edge of the plate and configured to follow the contour of the distal edge of the plate.
  • the lateral, the distal and the medial section of the stiffening structure can preferably form a continuous, in particular elongate, structure. Alternatively, this structure can be interrupted once or several times.
  • the stiffening structure is preferably designed in such a way that a proximal end of the lateral section is arranged in the metatarsal area and/or a proximal end of the medial section is arranged in the metatarsal area or in the tarsal area.
  • the stiffening structure can generally be a projection, in particular a rib or a bead. In general, it is preferred that the stiffening structure protrudes from the underside of the plate, ie towards the underside of the sole.
  • the bead may have a recess on the top of the panel while protruding from the bottom.
  • the area of the sole in which the plate is located can have an elevation on the upper side, in particular by 0.8 to 2 mm.
  • the elevation can be formed in the area of the base of the toes I and the metatarsal bone I, or in the area of the metatarsophalangeal joint of the big toe or the ball of the foot.
  • the elevation causes the big toe to touch down earlier in relation to travel and time than without elevation when the foot strikes, causing the distal head of metatarsal I to align with the heads of the remaining metatarsals (II to V), creating a Overpronation of the forefoot is avoided. Furthermore, the generation of force in the sagittal plane by the big toe and sesame bone can be increased, thereby encouraging the foot to adopt a high footed position.
  • the plate can be overmoulded with a plastic material, for example foamed, such as polyurethane, polyether, polyester, ethylene-vinyl acetate copolymer (EVAC) or so-called "progressive high energy return polyether", which may differ from the material of the plate can distinguish.
  • a plastic material for example foamed, such as polyurethane, polyether, polyester, ethylene-vinyl acetate copolymer (EVAC) or so-called "progressive high energy return polyether", which may differ from the material of the plate can distinguish.
  • the plate may be formed of metal, fiber reinforced plastic such as carbon fiber reinforced plastic, aramid fiber reinforced plastic, or glass fiber reinforced plastic, or a mixture thereof.
  • the plate can be formed from a thermoplastic polyurethane (TPU), for example, which is advantageous in terms of production technology and economics.
  • TPU thermoplastic polyurethane
  • the plate can have an opening below the heel bone. This can have the effect that during normal walking, in which the heel is first placed on the ground, the heel is cushioned.
  • the damping can be done, for example, by the material with which the plate is encapsulated.
  • the sole have a damping element, such as a damping pad, in the area of the opening.
  • FIG.1 a shoe 1 is shown with an upper 2 and a sole 3 connected thereto.
  • the shoe 1 is a sports shoe, in particular a running shoe.
  • the shoe 1 shown in the figures is shown for a right foot 4 .
  • the sole 3 has an elastic, in particular spring-elastic plate 10, which is integrated, in particular overmoulded, in a sole material 5, which can be one of the sole materials mentioned herein.
  • a layer of material 5 is above and a layer of material 5 is below plate 10.
  • the plate 10 is shown individually, being in the 2 with a foot skeleton arranged above it, in order to illustrate the interaction of the individual areas of the plate 10 with the parts of the foot 4.
  • the location information used herein for elements of the sole 3 or the plate 10 relates below to the anatomy of the human foot positioned as intended on the sole 3 or the plate 10 .
  • the plate 10 extends from the tarsal region W through a metatarsal region M into a toe region Z.
  • the plate 10 extends as shown in FIG 2 as can be seen, throughout the longitudinal extent of the foot 4. That is, the proximal end of the plate 10 roughly coincides with the proximal end of the heel bone C and that the distal end of the plate 10 roughly coincides with the distal end of the distal phalanx PD I .
  • the panel 10 is preferably formed in one piece from a plastics material such as a fiber reinforced plastic or thermoplastic polyurethane.
  • the plate 10 has an opening 17 in the tarsal area W, in particular below the heel bone C, which serves to cushion the heel when the foot is put down with the heel, for example by the material 5 or an additional cushion or material covering the heel dampens. Furthermore, several openings 18 are formed in the tarsal region W and in the metatarsal region M of the plate 10, which on the one hand save material and weight of the sole 10 and on the other hand a better connection of the material 5 with the plate 10. In principle, however, the plate 10 could also be produced without the openings 17 or 18 .
  • the plate 10 is designed such that it is arranged in the toe region Z essentially only in the region of or below the base toe phalanx (PP I ) and the distal toe phalanx (PD I ) of the big or first toe I .
  • the plate 10 is therefore configured so that it is not located in the region of or below the end toe phalanges PD II to PDv, middle toe phalanges PD II to PDv and base toe phalanges PD II to PDv of the foot 4 .
  • the plate 10 therefore has a width in the toe area Z that is smaller than the width of the plate 10 in the tarsal area W and/or in the metatarsal area M.
  • the plate 10 in the metatarsal area M tapers from its width in the tarsal area to the width in the toe area .
  • the plate 10 is S-shaped in plan view, ie it has a double curvature.
  • the plate 10 has a lateral edge 11 and a medial edge 12 .
  • the medial edge 12 roughly coincides with the medial edge of the foot 4 or big toe I .
  • the lateral edge 11 extends in the toe area Z between the big toe I and the adjacent toe II.
  • the lateral edge 11 of the plate 10 crosses the metatarsal bones M II to M V in the metatarsal area M.
  • the plate 10 preferably runs completely below the first metatarsal bone M I .
  • the plate 10 has a bead-shaped stiffening structure 13 in the metatarsal area M and in the toe area Z, which increases the flexural rigidity of the plate 10 against dorsal bending or against bending in the sagittal plane, or a plane parallel to the sagittal plane.
  • a bead other stiffening structures can also be used.
  • the stiffening structure 13 extends with a lateral section 14 from the metatarsal region M offset to and along the lateral edge 11 of the plate 10, and with a distal section 16 offset to and along a distal edge 19 which forms the distal end of the plate 10. and having a medial section 15 offset to and along the medial edge 12 of the plate 10 into the metatarsal region M or alternatively through the metatarsal region M into the tarsal region W.
  • the proximal end 14a of the lateral section is in the metatarsal region M.
  • the proximal end 15a of the medial section 15 is located in the metatarsal area M or alternatively in the tarsal area W.
  • the stiffening structure 13 extends between the proximal ends 14a, 15a continuously along the edge 11, 19, 12 of the plate 10.
  • a stiffening structure 13 would also be conceivable which is not continuous, i.e. interrupted one or more times.
  • the stiffening structure 13 protrudes from the underside of the plate 10 (see Fig. 1 ). If the stiffening structure 13 is in the form of a bead, it has an indentation which points towards the upper side of the plate 10 .
  • the plate 10 In the area of the sesamoids (not in 2 shown), which are arranged below the distal head of the metatarsal bone I, the plate 10 has an elevation compared to the area of the adjacent toe II.

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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)
EP21193662.0A 2021-08-27 2021-08-27 Chaussure dotée d'une plaque intégrée dans la semelle Pending EP4140346A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21193662.0A EP4140346A1 (fr) 2021-08-27 2021-08-27 Chaussure dotée d'une plaque intégrée dans la semelle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21193662.0A EP4140346A1 (fr) 2021-08-27 2021-08-27 Chaussure dotée d'une plaque intégrée dans la semelle

Publications (1)

Publication Number Publication Date
EP4140346A1 true EP4140346A1 (fr) 2023-03-01

Family

ID=77640350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21193662.0A Pending EP4140346A1 (fr) 2021-08-27 2021-08-27 Chaussure dotée d'une plaque intégrée dans la semelle

Country Status (1)

Country Link
EP (1) EP4140346A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847973A (en) 1927-06-20 1932-03-01 Dudley J Morton Means for compensating for foot abnormalities
US5052130A (en) 1987-12-08 1991-10-01 Wolverine World Wide, Inc. Spring plate shoe
EP0272082B1 (fr) 1986-12-15 1992-08-12 Daniel T. Barry Chaussure à semelle élastique
US7401422B1 (en) 1999-04-28 2008-07-22 Adidas International Marketing B.V. Plate for running shoe
US20100122472A1 (en) * 2008-11-17 2010-05-20 Wilson Iii C Griffin Torsion Control Devices and Related Articles of Footwear
US20170079373A1 (en) * 2015-09-17 2017-03-23 Wolverine World Wide, Inc. Sole assembly for article of footwear
US20210227933A1 (en) * 2015-10-02 2021-07-29 Nike, Inc. Plate for footwear

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847973A (en) 1927-06-20 1932-03-01 Dudley J Morton Means for compensating for foot abnormalities
EP0272082B1 (fr) 1986-12-15 1992-08-12 Daniel T. Barry Chaussure à semelle élastique
US5052130A (en) 1987-12-08 1991-10-01 Wolverine World Wide, Inc. Spring plate shoe
US7401422B1 (en) 1999-04-28 2008-07-22 Adidas International Marketing B.V. Plate for running shoe
US20100122472A1 (en) * 2008-11-17 2010-05-20 Wilson Iii C Griffin Torsion Control Devices and Related Articles of Footwear
US20170079373A1 (en) * 2015-09-17 2017-03-23 Wolverine World Wide, Inc. Sole assembly for article of footwear
US20210227933A1 (en) * 2015-10-02 2021-07-29 Nike, Inc. Plate for footwear

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