EP1524924A1 - Chaussure, notamment chaussures de sport, et son procede de production - Google Patents

Chaussure, notamment chaussures de sport, et son procede de production

Info

Publication number
EP1524924A1
EP1524924A1 EP03740452A EP03740452A EP1524924A1 EP 1524924 A1 EP1524924 A1 EP 1524924A1 EP 03740452 A EP03740452 A EP 03740452A EP 03740452 A EP03740452 A EP 03740452A EP 1524924 A1 EP1524924 A1 EP 1524924A1
Authority
EP
European Patent Office
Prior art keywords
spring
shoe according
sole
shoe
spring element
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.)
Withdrawn
Application number
EP03740452A
Other languages
German (de)
English (en)
Inventor
Frank Volke
Werner Hasenstab
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP1524924A1 publication Critical patent/EP1524924A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A43B13/182—Helicoidal springs
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials

Definitions

  • Shoe in particular sports shoe, and method for manufacturing a shoe
  • the invention relates to a shoe, in particular a work or sports shoe, with a sole in which at least one damping system having a spring element is provided, through which force inputs acting on the sole are at least partially absorbable.
  • a method for producing such a shoe is also described.
  • the elasticity of a shoe sole ensures reversible deformability of the sole, i.e. the sole is deformed in the short or long term by an external force input. After the loss of force, for example when the shoe is pressed off the ground, the energy stored by the deformation is released to the runner essentially without loss.
  • the shoe sole also has damping components that are, as it were, deformable, but the deformation energy inherent in these components is essentially irreversibly converted into heat and can therefore not be returned to the movement system.
  • the most common cushioning materials used in shoe soles are mainly plastics, gels or foams.
  • at high-quality sports shoes also integrated air chambers in soles in such a way that spring effects are achieved through such air cushions, whereby the elasticity of shoe soles can be slightly improved.
  • Multi-layer soles are also known which have so-called midsoles or midsoles with which a desired coordination between elasticity and cushioning is possible within certain limited limits.
  • Such shoe soles have an element, usually made of a foamed plastic, which has both elastic and damping properties.
  • changes in the elastic properties occur over the course of their lifespan, as a result of which the elasticity of the foamed material decreases significantly.
  • DE 41 22 086 A1 describes a device for heel suspension and stabilization for a sports shoe which provides a thin plate of heel size, which is made of a composite material made of a thermoplastic resin and a carbon fiberglass material.
  • the plate has a front and a rear end as well as an integrally formed, rearwardly extending and upwardly inclined spring part acting in the vertical direction.
  • the problem with this proposed heel suspension is that a constant pressure point is set for the entire heel area. The individual adjustment of the suspension to the geometry of the foot is not possible with this device.
  • the device only provides cushioning in the heel area. An absorption of forces in the front area of the shoe, in which the forces act on the foot, especially when running faster over the balls of the foot, cannot be achieved with this suspension.
  • WO 00/74515 A1 also describes a shoe and a spring damping device for a shoe.
  • a leaf spring device is provided between a sole and a footbed, which extends in the effective direction from the footbed to the sole.
  • the leaf spring part is formed from a thermoplastic elastomer and has at least one friction section which rubs during a relative movement between the footbed and the sole.
  • the object of the invention is to provide a shoe with an improved damping system in which damping of shock loads is ensured and at the same time at least part of the energy of the shocks to be damped can be used for a more economical running movement.
  • a user-specific optimization of the pressure points within the shoe sole should be possible and the damping system should be characterized by extreme durability, stability and resilience.
  • claim 21 is an inventive method for manufacturing the shoe.
  • Features which advantageously further develop the inventive idea are the subject matter of the subclaims and the description with reference to the exemplary embodiments.
  • the shoe according to the invention in particular sports shoe, with a sole in which a damping system having at least one spring element is provided, through which force inputs acting on the sole can be at least partially absorbed, is characterized in that the at least one spring element in the manner of a linear slot spring or a plate spring, which has at least one local elevation within the plate spring area.
  • slot springs such as those used mainly in mechanical engineering and described, for example, in EP 0318669 A1 are particularly suitable for use in shoe cushioning systems due to the linear damping characteristics, stability and durability. Tests have shown that slotted springs can withstand up to 4 million load changes without sacrificing the mechanical linear response. This spring is characterized in particular by the fact that it is light, robust, recyclable and easy to pour into rubber and / or plastic. Slotted springs, which are proposed according to the invention for use in shoes as a damping system, each consist of a solid cylindrical base body which is provided with slots which are arranged transversely to the longitudinal axis of the cylindrical body and each extend beyond the center or the longitudinal axis of the cylindrical body.
  • the slotted spring preferably has a longitudinal bore running coaxially to the longitudinal axis, at least in the region of the slits and the disc regions lying between them.
  • This longitudinal bore also passes through the two axial end parts and expediently has a smaller diameter there.
  • a spring element designed as a linear slot spring preferably has a cylindrical base body, which has at least one cross-sectional area oriented perpendicular to the cylinder center axis, along which at least one slot runs, which covers an area that is larger than half the cross-sectional area of the cylindrical base body.
  • plate springs used in the following relates to the spring arrangement described in the above publication DE 202 05 139 U1.
  • Such plate springs are made or shaped from a flat material which has curved or shaped areas which represent local elevations or depressions with respect to an imaginary plane through the plate spring.
  • the plate spring in question is designed as an annular spring, ie it has an annular spring cross section.
  • the ring spring material be it based on metallic or fiber-reinforced materials, has at least one, preferably three or more local ring curvatures protruding from the plane of the ring along the ring shape, each of which is located on the ring curvature ring areas adjoining on both sides rise.
  • a plate spring shaped in this way is able to absorb forces directed perpendicularly to the plane of the ring spring particularly well with a minimal spring travel.
  • Such a plate spring which, as shown above, can be designed as a ring spring or can also be provided as a plate spring with any n-edged contour, is for integration into the damping system designed according to the invention, preferably between two counter bearings, for example in the form of two robust layers or Plates, position. It is also possible to stack several of the above-mentioned diaphragm springs of the above-mentioned type in order to obtain an individual damping characteristic. In this way it is possible to form a spring assembly from a plurality of plate springs stacked one above the other. Of course, it is also possible to arrange a large number of such spring assemblies formed from plate springs within a shoe sole, the arrangement of the spring assemblies depending on the anatomical shape of the foot. It is also conceivable to arrange spring assemblies, which have different spring properties, such as spring stiffness, distributed according to anatomical aspects within the sole of the shoe.
  • a plurality of slotted springs can also be arranged next to one another between an upper and a lower boundary plane, which are formed, for example, by two shoe sole areas. In this way, a cushioning system is implemented within the sole of the shoe.
  • the at least one spring element preferably has an adjustment unit with which the spring stiffness can be changed.
  • the adjustment can be carried out, for example, by means of a tool that is brought into operative connection with the adjustment unit, or with an adjustment element that is firmly connected to the adjustment unit.
  • the at least one spring element is detachably integrated within the sole. It is thus possible to replace the spring element as soon as the load on the shoe changes, for example as a result of changed external influences.
  • the spring elements are preferably divided into groups, at least one spring element being contained in each group and the spring elements within a group having uniform spring properties.
  • the spring elements of different groups preferably have different spring properties.
  • a plurality of spring elements are arranged in a carrier matrix.
  • the carrier matrix serves on the one hand to stabilize individual spring elements at least along a linear axis, and on the other hand to guarantee a certain flat arrangement of the linear slot springs.
  • the carrier matrix is preferably in the form of a plate on which a plurality of recesses or bulges are provided. The individual spring elements are inserted into the corresponding recesses or bulges and are thus stabilized in their longitudinal spring axis.
  • the spring elements are preferably provided with such a plate with both their lower and their upper end, so that the spring elements are enclosed between the two plates.
  • Both the spring elements enclosed by two carrier matrices and the design in the form of a single carrier matrix equipped with spring elements are preferably designed as a module unit and can be easily implemented in a shoe sole. So it is possible to have module units with different To provide spring properties, e.g. soft, medium, hard, which can be incorporated into a shoe depending on the runner characteristics. This considerably simplifies and reduces the cost of producing sports shoes and / or work shoes that have different damping and elastic properties.
  • the shoe sole has at least one engagement opening through which the at least one spring element can be integrated into the shoe sole.
  • the spring element which is preferably made of metal, can be adjusted to the individual requirements and can also be recycled when worn.
  • the damping system according to the invention can thus be reused without problems, for example in another sports shoe.
  • the spring element is preferably arranged in a chamber within which it is surrounded by a gaseous, liquid and / or solid medium.
  • the medium that is located in the chamber and is surrounded by the spring element can be an inert gas, such as argon or krypton, or a gel-like fluid.
  • the chamber in this case represents a cavity within the sole. It is also possible to exchange the medium filled into the chamber in addition to the spring element or the spring element including the carrier matrix. This offers a further possibility of individually adapting the cushioning system according to the invention for shoes to its user or to the corresponding requirements of use.
  • the cavity is lined with a fluid-tight layer, so that when the medium in the chamber is exchanged, the entire medium can be changed at once.
  • the spring element itself is preferably made of a recyclable material, such as metal.
  • a recyclable material such as metal.
  • Manufacture spring element from other materials that ensure the stability and longevity of the spring element.
  • a method according to the invention for producing a shoe with a sole, in which a damping system having at least one spring element is provided, through which force inputs acting on the sole are at least partially absorbable, is characterized in that the at least one spring element is poured into the sole.
  • a plurality of spring elements are preferably first integrated into a carrier matrix, the carrier matrix including spring elements is introduced into a recess in the sole and the carrier matrix including spring element is cast with the sole.
  • the cushioning system according to the invention can also be used advantageously in the field of work shoes or safety shoes with additional protective elements, such as steel caps, insoles, etc.
  • Fig. 3 cross section through a shoe sole with linear damping
  • Fig. 1 shows a highly schematic of a sports shoe with a sole So, in which a carrier matrix T with a plurality of linear slot springs S is used.
  • the carrier matrix T is cast in a rubber mixture in the form of the sole.
  • Fig. 2a shows a typical linear slot spring S, which can be used as a spring element for the damping system that can be integrated in a sports shoe.
  • the slot spring S consists of a solid cylindrical body and is penetrated by slots 1 which are arranged transversely to the longitudinal axis of the cylindrical body and extend beyond the center or the longitudinal axis of the cylindrical body.
  • slots 1 which are arranged transversely to the longitudinal axis of the cylindrical body and extend beyond the center or the longitudinal axis of the cylindrical body.
  • webs 2 which are arranged asymmetrically over the entire length of the slot spring. These webs 2 ensure the power transmission from the upper to the lower end of the spring.
  • the slot spring In the area of the slots 1 and the disk areas lying between them, the slot spring can be regarded as a hollow cylinder. In this area, the body thus has a longitudinal bore 3 running coaxially with the longitudinal axis.
  • the upper and the lower end part of the Slotted spring serves as a stop, via which power is transmitted to
  • FIG. 2b shows a spring assembly which consists of three plate springs 4 arranged vertically one above the other.
  • each individual plate spring 4 has an effective spring force on its own, so that in a simplest embodiment the provision of a single plate spring would be sufficient.
  • FIG. 2b shows a spring assembly which consists of three plate springs 4 arranged vertically one above the other.
  • each individual plate spring 4 has an effective spring force on its own, so that in a simplest embodiment the provision of a single plate spring would be sufficient.
  • FIG. 2b shows a spring assembly which consists of three plate springs 4 arranged vertically one above the other.
  • the three plate springs 4 are arranged somewhat spaced apart between two robust layers 8 and 9.
  • the latter serve as preferred mechanical counter bearings, which, however, do not necessarily have to be provided individually for each spring stack. How the embodiment according. 2c shows, a large number of such spring stacks can also be placed between such layers 8 and 9.
  • Each individual one of the three plate springs 4 shown is designed as an annular spring and has three annular spring sections 5 which are flat in a common plane.
  • the individual ring spring sections 5 are delimited by curvatures which represent elevations 6 with respect to the common plane.
  • the three plate springs 4 are arranged in such a way that their elevations 6 each come to lie vertically above the flat ring spring sections 5 of the respective lower or upper plate spring.
  • different stack arrangements are also conceivable, for example a contour-covering arrangement of the plate springs.
  • diaphragm springs with a spring cross section deviating from the ring shape are fundamentally also suitable, for example a triangular or n-square spring cross section with and without inner recesses.
  • Local joints are used for the mutual connection of the plate springs 4 in the stacked arrangement shown.
  • the height or the spring properties of such a spring assembly can be changed almost arbitrarily by adding or removing further plate springs.
  • FIG. 2c shows a spring arrangement 7 which is characterized in that it has an upper 8 and a lower plate 9.
  • a large number of spring elements (10) of the aforementioned type are inserted between the plates 8, 9. If a force acts on the upper plate 8, which is designed, for example, as a carrier matrix and is integrated in the heel of a shoe, the force is distributed over a large number of spring elements. In this way it is also possible to absorb forces acting obliquely on the spring elements.
  • FIG. 3 shows a top view of a plurality of spring elements 10, which are arranged distributed over the surface of the sole So. This arrangement of the spring elements 10 makes it possible to individually set the pressure point required by the user in the shoe.

Abstract

L'invention concerne une chaussure, notamment une chaussure de sport comportant une semelle dans laquelle est placé un système d'amortissement présentant au moins un élément ressort, ledit système permettant d'absorber au moins partiellement les forces agissant sur la semelle. Ladite chaussure est caractérisée en ce que le ou les éléments ressorts se présentent sous la forme d'un ressort à fente linéaire ou au moins sous la forme d'un ressort ondulé qui comporte au moins une partie surélevée localisée.
EP03740452A 2002-07-12 2003-07-10 Chaussure, notamment chaussures de sport, et son procede de production Withdrawn EP1524924A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2002131882 DE10231882B4 (de) 2002-07-12 2002-07-12 Schuh, insbesondere Sportschuh, sowie Verfahren zur Herstellung eines Schuhs
DE10231882 2002-07-12
PCT/EP2003/007501 WO2004006709A1 (fr) 2002-07-12 2003-07-10 Chaussure, notamment chaussures de sport, et son procede de production

Publications (1)

Publication Number Publication Date
EP1524924A1 true EP1524924A1 (fr) 2005-04-27

Family

ID=29796360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03740452A Withdrawn EP1524924A1 (fr) 2002-07-12 2003-07-10 Chaussure, notamment chaussures de sport, et son procede de production

Country Status (3)

Country Link
EP (1) EP1524924A1 (fr)
DE (1) DE10231882B4 (fr)
WO (1) WO2004006709A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20320091U1 (de) 2003-12-23 2005-05-12 Puma Aktiengesellschaft Rudolf Dassler Sport Schuh
JP7002386B2 (ja) * 2018-03-23 2022-01-20 美津濃株式会社 ソール構造およびそれを用いたシューズ

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2313646C3 (de) * 1973-03-19 1980-08-14 Ludwig 7403 Ammerbuch Sailer Stollen für Sportschuhe, insbesondere für Fußballschuhe
US4267648A (en) * 1979-09-19 1981-05-19 Weisz Vera C Shoe sole with low profile integral spring system
EP0318669B1 (fr) * 1987-12-01 1994-01-12 VMA-NC Mess- und Antriebstechnik GmbH Accouplement à rondelles élastiques
US4901987A (en) * 1988-05-03 1990-02-20 Smalley Steel Ring Company Crest-to-crest compression spring with circular flat shim ends
US5381608A (en) * 1990-07-05 1995-01-17 L.A. Gear, Inc. Shoe heel spring and stabilizer
US5353523A (en) * 1991-08-02 1994-10-11 Nike, Inc. Shoe with an improved midsole
US5269081A (en) * 1992-05-01 1993-12-14 Gray Frank B Force monitoring shoe
US6120880A (en) * 1995-03-23 2000-09-19 Crow; William R. Performance enhancing athletic shoe components and methods
DE29813203U1 (de) * 1998-07-24 1998-12-03 Kapitz Carl Heinz Schuh, Stiefel, Schuhsohle oder Schuheinlage mit integrierter Feder, Spirale, Ring oder Welle als Schutzvorrichtung zur Dämpfung oder Verhinderung von Schwingungen
US6282814B1 (en) * 1999-04-29 2001-09-04 Shoe Spring, Inc. Spring cushioned shoe
US6055747A (en) * 1999-04-29 2000-05-02 Lombardino; Thomas D. Shock absorption and energy return assembly for shoes
WO2000074515A1 (fr) * 1999-06-08 2000-12-14 Ahrens Hans Joachim Chaussure et dispositif d'amortissement a lames pour chaussure
DE20205139U1 (de) 2002-04-02 2003-01-02 Hasenstab Werner Plattenfeder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004006709A1 *

Also Published As

Publication number Publication date
WO2004006709A1 (fr) 2004-01-22
DE10231882A1 (de) 2004-01-29
DE10231882B4 (de) 2004-07-22

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