EP0031936B1 - Shoe with resilient sole - Google Patents

Shoe with resilient sole Download PDF

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Publication number
EP0031936B1
EP0031936B1 EP80108021A EP80108021A EP0031936B1 EP 0031936 B1 EP0031936 B1 EP 0031936B1 EP 80108021 A EP80108021 A EP 80108021A EP 80108021 A EP80108021 A EP 80108021A EP 0031936 B1 EP0031936 B1 EP 0031936B1
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EP
European Patent Office
Prior art keywords
sole
shoe according
spring part
spring
tension rod
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.)
Expired
Application number
EP80108021A
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German (de)
French (fr)
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EP0031936A1 (en
EP0031936B2 (en
Inventor
Dieter Dr. Lutz
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.)
Sachs Systemtechnik GmbH
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Sachs Systemtechnik GmbH
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Publication date
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Application filed by Sachs Systemtechnik GmbH filed Critical Sachs Systemtechnik GmbH
Priority to AT80108021T priority Critical patent/ATE4852T1/en
Publication of EP0031936A1 publication Critical patent/EP0031936A1/en
Publication of EP0031936B1 publication Critical patent/EP0031936B1/en
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Publication of EP0031936B2 publication Critical patent/EP0031936B2/en
Expired legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0027—Footwear characterised by the material made at least partially from a material having special colours
    • A43B1/0036—Footwear characterised by the material made at least partially from a material having special colours with fluorescent or phosphorescent parts
    • 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
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/24—Heels; Top-pieces or top-lifts characterised by the constructive form
    • A43B21/26—Resilient heels

Definitions

  • the invention relates to a shoe, in particular a sports shoe, with an elastic sole, at least one chamber in the sole and a spring part made of elastomer-elastic material arranged in the chamber.
  • Sports shoes with a resilient sole are known, for example from DE-A-2 816 619.
  • the resilient properties of the sole are intended to absorb vibrations and strong shock loads on the heel bone and Achilles tendon and to protect the joints.
  • the sole of the well-known sports shoe comprises a profiled outsole which is glued to the shoe upper via an insole.
  • the heel jump is formed by a wedge-shaped tapered intermediate layer made of elastomer-elastic foam material.
  • the intermediate layer is exposed to the sides of the shoe and is provided with breathing openings through which the air contained therein can escape when the intermediate layer is resiliently stressed. The spring and damping properties of the elastic intermediate layer cannot be adjusted.
  • a sports shoe is known from DE-A-2460034, in the total sole of which air chambers are contained which are connected to one another via throttle openings.
  • this construction does not support the foot in the right place, namely in the area of the heel bone.
  • the introduction of air and the adjustment to the required pressure is problematic in this construction.
  • the object of the present invention is to improve a shoe, in particular a sports shoe, the elastic sole of which contains a spring part made of elastomer-elastic material in a simple manner so that the shoe suspension and cushioning can be easily matched to the weight of the wearer and the hardness of the career.
  • this object is achieved in that at least one tie rod, which runs essentially in a parallel plane to the sole, is arranged in the chamber and clamps the spring part between two abutments, that the spring part is slidably arranged in the chamber, and that the tie rod is an externally manageable one Adjustment device carries, which allows a change in distance of the abutment.
  • the elastomer-elastic spring part can be preloaded variably, with which the shoe suspension can be adapted to the weight of the user and the track hardness.
  • the setting can be made very sensitively, especially if the spring part is infinitely adjustable.
  • the spring part itself is either designed as a one-piece elastomer-elastic spring element or consists of several such spring elements which are arranged next to one another in the longitudinal direction of the sole.
  • elastomer-elastic should be understood to be rubber-elastic, but without the spring part having to be made of rubber. It may as well consist of plastic or other elastic materials.
  • the spring part or the spring elements can either consist of a foamed or solid, elastic material.
  • the spring elements are advantageously provided with foamed or molded cavities.
  • the damping properties can be influenced by suitable dimensioning of the cavities or selection of the elastomer material or the friction properties between the elastomer-elastic spring elements with one another and with the surrounding sole surfaces. In the case of foamed spring elements, these are preferably provided with a closed outer skin, as a result of which not only is the surface protected against wear, but at the same time a certain additional resilient or damping effect of the enclosed gas is achieved.
  • the spring part is slidably arranged in the associated chamber of the sole. In this way, the contraction of the spring part, which changes when the pretension is set, does not lead to a deformation of the sole and thus to an adverse change in the wearing properties of the shoe.
  • the tie rod preferably runs in the longitudinal direction of the sole.
  • a loss of shoe mobility is avoided in a simple manner in that the tie rod is formed by a flexible component or consists of a cable.
  • chambers for elastomer-elastic spring parts can be arranged between the outsole and the insole.
  • a central web formed by the chambers can run either in the longitudinal direction or in the transverse direction of the shoe. If the web runs in the longitudinal direction, the possibility is created to compensate for foot defects by different spring hardness of the spring parts of the chambers.
  • the web separating the chambers is arranged in the region of the heel bone and is itself designed as a spring element, and is penetrated by the tie rod and forms a bearing for the elastomer-elastic spring elements.
  • the spring elements can be of different hardness in order to achieve a particularly favorable anatomy of the foot to achieve a suitable basic setting.
  • the chambers of the spring parts can have boundary surfaces which form an acute angle for the elastomer-elastic spring elements. This also results in a change in the spring rate, which has a progressive or degressive character depending on the direction of taper.
  • material with favorable sliding properties is arranged in the area of the boundary surfaces of the chambers.
  • This can be formed, for example, by a sliding film or by a powdered lubricant such as talc.
  • a particularly favorable design of the sports shoe is obtained in that the spring part is combined with the chambers and the adjusting device to form a structural unit.
  • This unit forms part of the insole, which is interchangeably connected to the shoe.
  • a button connection known from plastic parts is suitable, after which a cover sole can be attached to the entire surface of the insole or in the area of the button connection.
  • the tie rod is connected to an adjusting key which is adapted to the contour of the sole in the rest position and which, according to the invention, is displaceable in the adjusting position for adjusting the spring preload.
  • a lock for the setting key is provided both in the rest position and in the setting position.
  • the spring part is connected to a marking, the position of which relative to the sole is a measure of the prestressing of the spring part.
  • the sole has a window through which the marking is visible.
  • the amount of the bias of the spring part is visibly displayed from the outside, so that the bias of both shoes can be adjusted evenly.
  • the window can be formed by a transparent or transparent insert in the tread of the sole. In the case of transparent sole material, a reduction in the sole thickness in the area of the window is often sufficient in order to be able to recognize the setting of the spring part sufficiently clearly.
  • this overall sole consists of a profiled outsole 1 and an insole 2 and is wedge-shaped in accordance with the shape of the foot.
  • This wedge essentially formed by the insole 2 is recessed in the area of the heel in such a way that two chambers 7 are formed, in which a multi-part spring part 4 is arranged. These two chambers 7 are separated by a longitudinal web 8.
  • the spring part 4 comprises two units consisting of elastomer spring elements 5, tie rods 6, thrust washers 13 and nuts 20. Before the profiled outsole 1 is glued or vulcanized onto the insole 2, one brings here the spring part 4 into the chambers 7.
  • the elastomer spring elements 5 are arranged between two pressure disks 13 in each chamber 7.
  • the tie rod 6 passes through these parts and is supported on both sides in the insole 2 in a front bearing 9 and a rear bearing 10.
  • the tie rod 6 is provided at its shoe inner end with a thread 21, in which the nut 20, which is connected non-rotatably to the pressure disk 13, engages.
  • the pressure plates 13 are preferably positively connected to the adjacent elastomer spring elements 5, for example by protrusions on the pressure plate 13 engaging in corresponding recesses in the spring elements 5.
  • each tie rod 6 protrudes with its adjusting head 11 and thus lies against a support bearing 12.
  • the chambers 7 accommodating the spring part 4 are closed and the prestressing of the spring elements 5 can be done via the two adjusting heads 11 the tie rod 6 can be continuously adjusted separately.
  • the adjustment heads 11 are provided with corresponding surfaces for an adjustment tool.
  • the spring elements 5 are supported on the thrust washer 13 on the left in the figure and the nut 20 on the tie rod 6, this force being absorbed by the support bearing 12.
  • the other side of the spring elements 5 is supported via the thrust washer 13 on the abutment 3 formed by the chamber 7.
  • the spring tension of the spring elements can be changed by rotating the adjustment head 11 which is firmly connected to the tie rod, between the lowest and the highest spring rate about 40 revolutions of the adjustment head 11 are required.
  • This rotary movement of the tie rod 6 causes, via the thread 21 and the nut 20, an axial displacement of the thrust washer 13 and thus a change in the spring rate for the spring elements 5. Due to the separate adjustment option of the two spring units arranged in the chambers 7, a different spring hardness on the inside -and the outside of the shoe can be reached, whereby foot errors can be compensated.
  • the spring part 4 is constructed from spring elements 5, it is readily possible to use different spring elements 5 with regard to the spring hardness. Adapting the spring properties to the weight of the person using the shoe is easily possible in this way.
  • the arrangement of the spring part 4 directly in the area of the heel bone is particularly favorable.
  • the tie rods 6 can for example be made of glass fiber reinforced plastic material in this embodiment or consist of another resilient material.
  • the tie rod 6 also differs from the one already described, because in addition to the threaded section 21 provided with a right-hand thread, it carries a further threaded section 22 with a left-hand thread.
  • a bushing is provided as the front bearing 9, while the rear pivot bearing is formed by an adjusting key 17 which can be displaced axially on the tie rod.
  • the adjusting key 17 is non-rotatably connected to the tie rod 6, in that the tie rod 6 has a square at this end, for example, and the adjusting key has a corresponding inner square. 3, 4 and 5, the adjusting key 17 is shown in the rest position, the collar of the adjusting key 17 engaging in a lock 18.
  • the adjusting key 17 is pulled out of this position and then engages with the collar in a lock 19. Now the spring rate of the spring elements 5 can be changed by turning the adjusting key 17 and thus the tie rod 6.
  • a clockwise rotation is carried out, the thrust washers 13 connected to the adjacent spring elements 5 and the nuts 20 being axially displaced.
  • the movement of the right and left thrust washer is in opposite directions, since the thread 21 is a right-hand thread and the thread 22 is a left-hand thread.
  • Appropriate stops for the axially movable parts are arranged on the tie rod 6 for the hardest and softest setting of the spring rate.
  • the bearing 9 serves the softest setting as a stop, while the threaded end forms the stop for the hardest setting.
  • the profiled outsole 1 is only glued to the underside of the insole 2 after the spring part has been installed in the insole 2. It is readily possible to connect the structural unit consisting of the spring part 4, the chambers 14 and 15 and the adjusting device to the shoe in an interchangeable manner. For this purpose, this structural unit is connected, for example by buttoning, to the inner sole 2 and a corresponding cover sole is attached over the connection point or over the entire sole area.
  • the boundary surfaces of the chambers 7 according to FIGS. 1 and 2 or of the chambers 14 and 15 according to FIGS. And 4 can run parallel to one another or also at an acute angle to one another in order to additionally achieve a progressive or degressive change in the spring rate.
  • the embodiment according to FIGS. 3 and 4 also allows a very sensitive, stepless adjustment of the spring rate, since approximately 40 turns of the key are possible in order to move from the hardest to the softest setting.
  • the spring force changes of the individual chambers can also be varied by a corresponding pitch of the threads 21 and 22.
  • the spring part is preferably arranged in the wedge of the insole 2 in such a way that the support is provided in the area of the center of the heel.
  • the pressure plates 13 on both sides have a small height in relation to the spring elements 5, approximately one third of the height of these elements 5.
  • elastomer spring elements of uniform design are used. In special cases, it is easily possible to design the spring elements from different materials, i.e. with different spring rates, or with different shapes in order to achieve different supports in the foot area and thus to compensate for extreme weights or foot defects of the wearer.
  • FIGS. 6, 7 and 8 it is an outsole in which the setting or before tension of the spring element arranged between the outsole and insole is visible from the outside.
  • the outsole 1 has a window 25 which is formed by a transparent or translucent insert or, in the case of a somewhat translucent outsole, by a section of thinner sole thickness.
  • the elastomeric or rubber-elastic spring element 27, which can be preloaded by the tie rod 6, is formed in one piece and is provided with cavities and depressions on the surface, which improve the elasticity and damping properties.
  • the spring element 27 is supported in the heel area on a curved thrust washer 28 which is adapted to the rear outsole contour.
  • the thrust washer 28 is in turn rotatably supported on the tie rod 6 in a manner not shown.
  • the thrust washer 28 can be arranged very close to the heel end of the sole, which creates space for the spring element 27 in the heel area.
  • the front thrust washer 29 screwed onto a thread of the pull rod 6 moves in the direction of the rear thrust washer 28, whereby a compensating body 26, which is preferably made of a foam, can expand accordingly and thus no cavity is created in the area of the thrust washer 29.
  • the side of the compensating body 26 opposite the pressure plate 29 is supported on a third pressure plate bent opposite to the pressure plate 28, which in turn is rotatably supported on the pull rod 6. None of the three thrust washers are thus supported on the adjacent surfaces of the sole chamber, so that the sole is not exposed to any stress.
  • the compensating body 26 and the spring element 27 have strikingly different colors.
  • the compensating body 26 is colored white or yellow and the spring element 27 is colored black or red.
  • the elements 26 and / or 27 can also be designed to be fluorescent, as a result of which a signal effect serving the safety of the runner is achieved in the dark.
  • the essence of the outsole shown in FIGS. 2 to 8 consists in the transparent or translucent window, which enables a visible display of the prestress of the spring element 27. A comparison of the two shoes thus enables a uniform setting of the spring element preload of both shoes.
  • the window 25 can be of any shape and formed by an insert or a translucent portion of the outsole.
  • a triangular window is shown, which widens in the direction of greater bias. 6a shows a diamond-shaped window 25a. While the triangular or wedge-shaped window makes it easier to assess the size of the spring preload, the diamond-shaped window allows an easier comparison of the preload of the two shoes, since the center of the diamond visually highlights a medium setting.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

An elastic sole for a shoe, such as a sport shoe, includes an outer sole with a profiled wearing surface and an inner sole. The inner sole forms at least one chamber. A spring member is located within the chamber and includes a plurality of elastomer spring elements and a tension rod extending through the spring elements. The tension rod is connected to abutments at opposite ends of the spring elements. One end of the tension rod is accessible on the exterior of the sole for adjusting the spring characteristic of the spring member.

Description

Die Erfindung betrifft einen Schuh, insbesondere Sportschuh, mit einer elastischen Sohle, wenigstens einer Kammer in der Sohle und einem in der Kammer angeordneten Federteil aus elastomer-elastischem Material.The invention relates to a shoe, in particular a sports shoe, with an elastic sole, at least one chamber in the sole and a spring part made of elastomer-elastic material arranged in the chamber.

Sportschuhe mit federnd nachgiebiger Sohle sind bekannt, beispielsweise aus der DE-A-2 816 619. Durch die, insbesondere im Absatzbereich federnden Eigenschaften der Sohle sollen Erschütterungen und starke Stoßbelastungen des Fersenbeins und der Achillessehne abgefangen und die Gelenke geschützt werden. Die Sohle des bekannten Sportschuhs umfaßt eine profilierte Laufsohle, die über eine Brandsohle am Schuhschaft angeklebt ist. Der Absatzsprung wird durch eine keilförmig sich verjüngende Zwischenschicht aus elastomer-elastischem Schaumstoffmaterial gebildet. Die Zwischenschicht liegt zu den Schuhseiten hin frei und ist mit Atmungsöffnungen versehen, über die bei der federnden Beanspruchung der Zwischenschicht die darin enthaltene Luft entweichen kann. Die Feder- und Dämpfungseigenschaften der elastischen Zwischenschicht lassen sich nicht justieren.Sports shoes with a resilient sole are known, for example from DE-A-2 816 619. The resilient properties of the sole, particularly in the heel area, are intended to absorb vibrations and strong shock loads on the heel bone and Achilles tendon and to protect the joints. The sole of the well-known sports shoe comprises a profiled outsole which is glued to the shoe upper via an insole. The heel jump is formed by a wedge-shaped tapered intermediate layer made of elastomer-elastic foam material. The intermediate layer is exposed to the sides of the shoe and is provided with breathing openings through which the air contained therein can escape when the intermediate layer is resiliently stressed. The spring and damping properties of the elastic intermediate layer cannot be adjusted.

Aus der US-A-4 030 213 ist es bekannt, eine Federung durch im Sohlenmaterial eingebettete Schraubenfedern zu erzielen. Nachteilig ist bei dieser Ausführung, daß die Federung ebenfalls nicht einstellbar ist und dementsprechend nicht dem Verwendungszweck und dem Gewicht des Trägers angepaßt werden kann.From US-A-4 030 213 it is known to achieve a suspension by means of coil springs embedded in the sole material. The disadvantage of this design is that the suspension is also not adjustable and accordingly cannot be adapted to the intended use and the weight of the carrier.

Ferner ist aus der DE-A-2460034 ein Sportschuh bekannt, in dessen Gesamtsohle Luftkammern enthalten sind, die über Drosselöffnungen miteinander in Verbindung stehen. Diese Konstruktion unterstützt jedoch den Fuß nicht an der richtigen Stelle, nämlich im Bereich des Fersenknochens. Im übrigen ist bei dieser Konstruktion das Einbringen der Luft und das Abstimmen auf den erforderlichen Druck problematisch.Furthermore, a sports shoe is known from DE-A-2460034, in the total sole of which air chambers are contained which are connected to one another via throttle openings. However, this construction does not support the foot in the right place, namely in the area of the heel bone. In addition, the introduction of air and the adjustment to the required pressure is problematic in this construction.

Aufgabe der vorliegenden Erfindung ist es, einen Schuh, insbesondere Sportschuh, dessen elastische Sohle ein Federteil aus elastomer-elastischem Material enthält, auf einfache Weise so zu verbessern, daß die Schuhfederung und Schuhdämpfung problemlos auf das Gewicht des Trägers und die Laufbahnhärte abgestimmt werden kann.The object of the present invention is to improve a shoe, in particular a sports shoe, the elastic sole of which contains a spring part made of elastomer-elastic material in a simple manner so that the shoe suspension and cushioning can be easily matched to the weight of the wearer and the hardness of the career.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß in der Kammer wenigstens ein im wesentlichen in einer Parallelebene zur Sohle verlaufender Zuganker angeordnet ist, der das Federteil zwischen zwei Widerlagern einspannt, daß das Federteil gleitbeweglich in der Kammer angeordnet ist und daß der Zuganker eine von außen handhabbare Einstelleinrichtung trägt, welche eine Abstandsänderung der Widerlager erlaubt.According to the invention, this object is achieved in that at least one tie rod, which runs essentially in a parallel plane to the sole, is arranged in the chamber and clamps the spring part between two abutments, that the spring part is slidably arranged in the chamber, and that the tie rod is an externally manageable one Adjustment device carries, which allows a change in distance of the abutment.

Mittels der Einstelleinrichtung kann das Elastomer-elastische Federteil variabel vorgespannt werden, womit die Schuhfederung dem Gewicht des Benutzers und der Bahnhärte angepaßt werden kann. Die Einstellung kann sehr feinfühlig vorgenommen werden, insbesondere, wenn das Federteil stufenlos einstellbar ist.By means of the adjusting device, the elastomer-elastic spring part can be preloaded variably, with which the shoe suspension can be adapted to the weight of the user and the track hardness. The setting can be made very sensitively, especially if the spring part is infinitely adjustable.

Das Federteil selbst ist entweder als einstückiges elastomer-elastisches Federelement ausgebildet oder besteht aus mehreren derartigen Federelementen, die in Sohlenlängsrichtung nebeneinander angeordnet sind. Unter elastomerelastisch soll hier und im folgenden gummielastisch verstanden werden, ohne daß das Federteil jedoch aus Gummi bestehen muß. Es kann ebensogut aus Kunststoff oder anderen elastischen Materialien bestehen. Das Federteil bzw. die Federelemente können entweder aus einem geschäumten oder aus vollem, elastischem Material bestehen. Die Federelemente sind vorteilhaft mit geschäumten oder angeformten Hohlräumen versehen. Durch geeignete Bemessung der Hohlräume oder Auswahl des Elastomer-Materials oder der Reibeigenschaften zwischen den elastomerelastischen Federelementen untereinander und mit den umgebenden Sohlenoberflächen können die Dämpfungseigenschaften beeinflußt werden. Bei geschäumten Federelementen sind diese vorzugsweise mit einer geschlossenen Außenhaut versehen, wodurch nicht nur die Oberfläche gegen Verschleiß geschützt wird, sondern gleichzeitig eine gewisse zusätzliche federnde bzw. dämpfende Wirkung des eingeschlossenen Gases erzielt wird.The spring part itself is either designed as a one-piece elastomer-elastic spring element or consists of several such spring elements which are arranged next to one another in the longitudinal direction of the sole. Here and in the following, elastomer-elastic should be understood to be rubber-elastic, but without the spring part having to be made of rubber. It may as well consist of plastic or other elastic materials. The spring part or the spring elements can either consist of a foamed or solid, elastic material. The spring elements are advantageously provided with foamed or molded cavities. The damping properties can be influenced by suitable dimensioning of the cavities or selection of the elastomer material or the friction properties between the elastomer-elastic spring elements with one another and with the surrounding sole surfaces. In the case of foamed spring elements, these are preferably provided with a closed outer skin, as a result of which not only is the surface protected against wear, but at the same time a certain additional resilient or damping effect of the enclosed gas is achieved.

Das Federteil ist erfindungsgemäß gleitbeweglich in der zugeordneten Kammer der Sohle angeordnet. Auf diese Weise führt die beim Einstellen der Vorspannung sich ändernde Kontraktion des Federteils nicht zu einer Deformierung der Sohle und damit zu einer nachteiligen Änderung der Trageigenschaften des Schuhs.According to the invention, the spring part is slidably arranged in the associated chamber of the sole. In this way, the contraction of the spring part, which changes when the pretension is set, does not lead to a deformation of the sole and thus to an adverse change in the wearing properties of the shoe.

Der Zuganker verläuft bevorzugt in Sohlenlängsrichtung.The tie rod preferably runs in the longitudinal direction of the sole.

Eine Einbuße an Schuhbeweglichkeit wird auf einfache Weise dadurch vermieden, daß der Zuganker durch ein biegeelastisches Bauteil gebildet ist oder aus einem Seilzug besteht.A loss of shoe mobility is avoided in a simple manner in that the tie rod is formed by a flexible component or consists of a cable.

Zwischen Laufsohle und Innensohle können mehrere Kammern für elastomer-elastische Federteile angeordnet sein. Ein von den Kammern gebildeter Mittelsteg kann entweder in Längsrichtung oder in Querrichtung des Schuhs verlaufen. Verläuft der Steg in Längsrichtung, so wird die Möglichkeit geschaffen, durch unterschiedliche Federhärte der Federteile der Kammern Fußfehler auszugleichen. Bei querverlaufendem Steg ist es besonders zweckmäßig, wenn der die Kammern trennende Steg im Bereich des Fersenknochens angeordnet und selbst als Federelement ausgebildet ist, sowie vom Zuganker durchdrungen wird und ein Wiederlager für die elastomer-elastischen Federelemente bildet. Die Federelemente können unterschiedlich hart sein, um eine besonders günstige, der Anatomie des Fußes angepaßte Grundeinstellung zu erzielen.Several chambers for elastomer-elastic spring parts can be arranged between the outsole and the insole. A central web formed by the chambers can run either in the longitudinal direction or in the transverse direction of the shoe. If the web runs in the longitudinal direction, the possibility is created to compensate for foot defects by different spring hardness of the spring parts of the chambers. In the case of a transverse web, it is particularly expedient if the web separating the chambers is arranged in the region of the heel bone and is itself designed as a spring element, and is penetrated by the tie rod and forms a bearing for the elastomer-elastic spring elements. The spring elements can be of different hardness in order to achieve a particularly favorable anatomy of the foot to achieve a suitable basic setting.

Die Kammern der Federteile können Begrenzungsflächen aufweisen, die einen spitzen Winkel für die elastomer-elastischen Federelemente bilden. Damit wird zusätzlich eine Veränderung der Federrate erreicht, die je nach der Verjüngungsrichtung progressiven oder degressiven Charakter hat.The chambers of the spring parts can have boundary surfaces which form an acute angle for the elastomer-elastic spring elements. This also results in a change in the spring rate, which has a progressive or degressive character depending on the direction of taper.

Zur Vermeidung von Geräuschen bei der Betätigung ist im Bereich der Begrenzungsflächen der kammern Material mit gleitgünstigen Eigenschaften angeordnet. Dies kann beispielsweise durch eine Gleitfolie oder durch ein pulverförmiges Gleitmittel wie beispielsweise Talkum gebildet sein.To avoid noise during actuation, material with favorable sliding properties is arranged in the area of the boundary surfaces of the chambers. This can be formed, for example, by a sliding film or by a powdered lubricant such as talc.

Eine besonders günstige Ausbildung des Sportschuhes wird dadurch erhalten, daß das Federteil mit den Kammern und der Einstellvorrichtung zu einer Baueinheit zusammengefaßt ist. Dabei bildet diese Baueinhait einen Teil der Innensohle, die auswechselbar mit dem Schuh verbunden wird. Als auswechselbare Verbindung dieser Baueinheit mit dem Schuh bietet sich eine bei Kunststoffteilen bekannte Knöpfverbindung an, wobei anschließend eine Abdecksohle auf der ganzen Fläche der Innensohle oder im Bereich der Einknöpfverbindung angebracht werden kann.A particularly favorable design of the sports shoe is obtained in that the spring part is combined with the chambers and the adjusting device to form a structural unit. This unit forms part of the insole, which is interchangeably connected to the shoe. As a replaceable connection of this structural unit with the shoe, a button connection known from plastic parts is suitable, after which a cover sole can be attached to the entire surface of the insole or in the area of the button connection.

In weiterer Ausgestaltung der Erfindung ist der Zuganker mit einem Einstellschlüssel verbunden, der in der Ruhestellung der Sohlenkontur angepaßt ist und erfindungsgemäß zum Einstellen der Federvorspannung in Einstellposition verschiebbar ist. Dabei ist sowohl in der Ruhestellung als auch in der Einstellposition eine Arretierung für den Einstellschlüssel vorgesehen. In einer bevorzugten Ausführungsform ist der Federteil mit einer Markierung verbunden, deren Position relativ zur Sohle ein Maß für die Vorspannung des Federteils ist. Die Sohle weist ein Fenster auf, durch das die Markierung sichtbar ist. In dieser Ausführungsform wird die Höhe der Vorspannung des Federteils von außen sichtbar angezeigt, so daß die Vorspannung beider Schuhe gleichmäßig eingestellt werden kann. Das Fenster kann durch einen durchsichtigen oder transparenten Einsatz in der Lauffläche der Sohle gebildet sein. Bei transparentem Sohlenmaterial genügt vielfach bereits eine Verringerung der Sohlendicke im Bereich des Fensters, um die Einstellung des Federteils hinreichend deutlich erkennen zu können.In a further embodiment of the invention, the tie rod is connected to an adjusting key which is adapted to the contour of the sole in the rest position and which, according to the invention, is displaceable in the adjusting position for adjusting the spring preload. A lock for the setting key is provided both in the rest position and in the setting position. In a preferred embodiment, the spring part is connected to a marking, the position of which relative to the sole is a measure of the prestressing of the spring part. The sole has a window through which the marking is visible. In this embodiment, the amount of the bias of the spring part is visibly displayed from the outside, so that the bias of both shoes can be adjusted evenly. The window can be formed by a transparent or transparent insert in the tread of the sole. In the case of transparent sole material, a reduction in the sole thickness in the area of the window is often sufficient in order to be able to recognize the setting of the spring part sufficiently clearly.

Die Erfindung ist nachfolgend an Hand von Ausführungsbeispielen in den Zeichnungen noch ausführlicher erläutert.The invention is explained in more detail below with reference to exemplary embodiments in the drawings.

Es zeigt :

  • Figur 1 die Sohle eines Sportschuhes gemäß der Erfindung im Längsschnitt ;
  • Figur 2 die in Fig. 1 gezeigte Sohle in der Draufsicht ;
  • Figur3 eine andere Ausführungsform der Sohle mit Quersteg zwischen den Kammern im Längsschnitt ;
  • Figur4 die Draufsicht auf die Sohle nach Fig. 3 ;
  • Figur 5 die Rückansicht der sohle nach den Fig. 3 und 4 ;
  • Figur 6 zeigt eine Unteransicht einer weiteren Ausführungsform der Sohle eines Sportschuhs mit einem Fenster zur Anzeige der Federvorspannung ;
  • Figur6a eine alternativ bei der Sohle nach Fig. 6 verwendbare Fensterform ;
  • Figur 7 eine teilweise geschnittene Draufsicht auf die Sohle nach Fig. 6 und
  • Figur einen Längsschnitt durch die Sohle nach Fig. 6.
It shows :
  • Figure 1 shows the sole of a sports shoe according to the invention in longitudinal section;
  • Figure 2 shows the sole shown in Figure 1 in plan view;
  • Figure 3 shows another embodiment of the sole with a crosspiece between the chambers in longitudinal section;
  • Figure 4 is a top view of the sole of Fig. 3;
  • 5 shows the rear view of the sole according to FIGS. 3 and 4;
  • FIG. 6 shows a bottom view of a further embodiment of the sole of a sports shoe with a window for displaying the spring preload;
  • FIG. 6a shows a window shape that can alternatively be used in the sole according to FIG. 6;
  • Figure 7 is a partially sectioned plan view of the sole of Fig. 6 and
  • 6 shows a longitudinal section through the sole according to FIG. 6.

In den Figuren ist lediglich die Gesamtsohle des Sportschuhes dargestellt. Entsprechend der Ausführungsform nach den fig. 1 und 2 besteht diese Gesamtsohle aus einer profilierten Laufsohle 1 und einer Innensohle 2 und ist entsprechend der Fußform keilförmig ausgebildet. Dieser im wesentlichen von der Innensohle 2 gebildete Keil ist im Bereich der Ferse so ausgespart, daß zwei Kammern 7 entstehen, in denen ein mehrteiliges Federteil 4 angeordnet ist. Getrennt sind diese beiden Kammern 7 durch einen Längssteg 8. Das Federteil 4 umfaßt zwei Einheiten, bestehend aus Elastomer-Federelementen 5, Zuganker 6, Druckscheiben 13 und Muttern 20. Ehe die profilierte Laufsohle 1 auf die Innensohle 2 aufgeklebt oder aufvulkanisiert wird, bringt man hier das Federteil4 in die Kammern 7 ein. In jeder Kammer 7 sind die Elastomer-Federelemente 5 zwischen zwei Druckscheiben 13 angeordnet. Der Zuganker 6 durchsetzt diese Teile und ist beidseitig in der Innensohle 2 in einem vorderen Lager 9 bzw. einem hinteren Lager 10 gelagert. Der Zuganker 6 ist an seinem schuhinneren Ende mit einem Gewinde 21 versehen, in welches die drehfest mit der Druckscheibe 13 verbundene Mutter 20 eingreift. Die Druckscheiben 13 sind vorzugsweise formschlüssig mit den angrenzenden Elastomer-Federelementen 5 verbunden, indem beispielsweise Vorsprünge auf der Druckscheibe 13 in entsprechende Aussparungen der Federelemente 5 eingreifen. Am hinteren Ende der Innensohle ragt jeder Zuganker 6 mit seinem Einstellkopf 11 heraus und legt sich damit gegen ein Stützlager 12. Nach Aufkleben der Laufsohle sind die das Federteil 4 aufnehmenden Kammern 7 in sich geschlossen und die Vorspannung der Federelemente 5 kann über die beiden Einstellköpfe 11 der Zuganker 6 getrennt voneinander stufenlos eingestellt werden. Hierzu sind die Einstellköpfe 11 mit entsprechenden Flächen für ein Einstellwerkzeug versehen. Die Federelemente 5 stützen sich einmal an dem in der Figur linken Druckscheibe 13 und der Mutter 20 auf dem Zuganker 6 ab, wobei diese Kraft vom Stützlager 12 aufgefangen wird. Die andere Seite der Federelemente 5 stützt sich über die Druckscheibe 13 an dem von der Kammer 7 gebildeten Widerlager 3 ab. Durch Drehen des mit dem Zuganker fest verbundenen Einstellkopfes 11 kann die Federspannung der Federelemente verändert werden, wobei zwischen der geringsten und der größten Federrate etwa 40 Umdrehungen des Einstellkopfes 11 erforderlich sind. Diese Drehbewegung des Zugankers 6 bewirkt über das Gewinde 21 und die Mutter 20 ein axiales Verschieben der Druckscheibe 13 und damit eine Veränderung der Federrate für die Federelemente 5. Durch die getrennte Einstellmöglichkeit der beiden in den Kammern 7 angeordneten Federeinheiten kann eine unterschiedliche Federhärte auf der Innen-und Außenseite des Schuhes erreicht werden, wodurch Fußfehler ausgeglichen werden können. Außerdem ist beim Aufbau des Federteiles 4 aus Federelementen 5 ohne weiteres die Möglichkeit gegeben, hinsichtlich der Federhärte unterschiedliche Federelemente 5 zu verwenden. Ein Anpassen der Federeigenschaften an das Gewicht des den Schuh benutzenden Menschen ist auf diese vorbeschriebene Weise leicht möglich. Besonders günstig ist die Anordnung des Federteiles 4 direkt im Bereich des Fersenbeines. Die Zuganker 6 können beispielsweise bei dieser Ausführungsform aus glasfaserverstärktem Kunststoffmaterial hergestellt werden oder aus einem sonstigen federelastischen Material bestehen. Ebenso ist es denkbar, diese Zuganker durch einen Seilzug zu ersetzen. Bei der in den Fig. 3, 4 und 5 gezeigten Ausführungsform bilden die im keilförmigen Abschnitt der Innensohle angeordneten Aussparungen eine vordere Kammer 14 und eine hintere Kammer 15 für das Federteil 4. Zwischen diesen Kammern 14 und 15 befindet sich ein Quersteg 16, der selbst als Federelement ausgebildet ist und vom Zuganker durchdrungen wird. Außerdem wirkt dieser Quersteg 16 als Widerlager 3 für die an dem Quersteg 16 anliegenden Federelemente 5. Diese Federelemente unterscheiden sich von den in den Fig. 1 und 2 gezeigten im wesentlichen dadurch, daß sie im Innern spezielle Hohlräume aufweisen, die mit Gas gefüllt sind. Auch der Zuganker 6 unterscheidet sich von dem bereits beschriebenen, denn dieser trägt außer dem mit einem rechtsgängigen Gewinde versehenen Gewindeabschnitt 21 einen weiteren Gewindeabschnitt 22 mit Linksgewinde. Zur Lagerung des Zugankers 6 ist eine Buchse als vorderes Lager9 vorgesehen, während das hintere Drehlager durch einen axial auf dem Zuganker verschiebbaren Einstellschlüssel 17 gebildet wird. Der Einstellschlüssel 17 ist drehfest mit dem Zuganker 6 verbunden, indem der Zuganker 6 beispielsweise an diesem Ende einen Vierkant aufweist und der Einstellschlüssel mit einem entsprechenden Innenvierkant. In den Fig. 3, 4 und 5 ist der Einstellschlüssel 17 in der Ruhestellung dargestellt, wobei der Bund des Einstellschlüssels 17 in eine Arretierung 18 eingreift. Zur Veränderung der Federrate wird der Einstellschlüssel 17 aus dieser Position herausgezogen und greift dann mit dem Bund in eine Arretierung 19 ein. Nun kann durch Verdrehen des Einstellschlüssels 17 und damit des Zugankers 6 die Federrrate der Federelemente 5 verändert werden. Zur Erhöhung der Federrate wird eine Drehung im Uhrzeigersinn ausgeführt, wobei die mit den angrenzenden Federelementen 5 und den Muttern 20 verbundenen Druckscheiben 13 axial verschoben werden. Die Bewegung der rechten und linken Druckscheibe ist dabei gegenläufig, da das Gewinde 21 ein Rechts- und das Gewinde 22 ein Linksgewinde ist. Für die härteste und weicheste Einstellung der Federrate sind entsprechende Anschläge für die axial beweglichen Teile auf dem Zuganker 6 angeordnet. Beispielsweise dient das Lager 9 der weichesten Einstellung als Anschlag, während das Gewindeende den Anschlag für die härteste Einstellung bildet.In the figures, only the overall sole of the sports shoe is shown. According to the embodiment according to the fig. 1 and 2, this overall sole consists of a profiled outsole 1 and an insole 2 and is wedge-shaped in accordance with the shape of the foot. This wedge essentially formed by the insole 2 is recessed in the area of the heel in such a way that two chambers 7 are formed, in which a multi-part spring part 4 is arranged. These two chambers 7 are separated by a longitudinal web 8. The spring part 4 comprises two units consisting of elastomer spring elements 5, tie rods 6, thrust washers 13 and nuts 20. Before the profiled outsole 1 is glued or vulcanized onto the insole 2, one brings here the spring part 4 into the chambers 7. The elastomer spring elements 5 are arranged between two pressure disks 13 in each chamber 7. The tie rod 6 passes through these parts and is supported on both sides in the insole 2 in a front bearing 9 and a rear bearing 10. The tie rod 6 is provided at its shoe inner end with a thread 21, in which the nut 20, which is connected non-rotatably to the pressure disk 13, engages. The pressure plates 13 are preferably positively connected to the adjacent elastomer spring elements 5, for example by protrusions on the pressure plate 13 engaging in corresponding recesses in the spring elements 5. At the rear end of the insole, each tie rod 6 protrudes with its adjusting head 11 and thus lies against a support bearing 12. After the outsole has been glued on, the chambers 7 accommodating the spring part 4 are closed and the prestressing of the spring elements 5 can be done via the two adjusting heads 11 the tie rod 6 can be continuously adjusted separately. For this purpose, the adjustment heads 11 are provided with corresponding surfaces for an adjustment tool. The spring elements 5 are supported on the thrust washer 13 on the left in the figure and the nut 20 on the tie rod 6, this force being absorbed by the support bearing 12. The other side of the spring elements 5 is supported via the thrust washer 13 on the abutment 3 formed by the chamber 7. The spring tension of the spring elements can be changed by rotating the adjustment head 11 which is firmly connected to the tie rod, between the lowest and the highest spring rate about 40 revolutions of the adjustment head 11 are required. This rotary movement of the tie rod 6 causes, via the thread 21 and the nut 20, an axial displacement of the thrust washer 13 and thus a change in the spring rate for the spring elements 5. Due to the separate adjustment option of the two spring units arranged in the chambers 7, a different spring hardness on the inside -and the outside of the shoe can be reached, whereby foot errors can be compensated. In addition, when the spring part 4 is constructed from spring elements 5, it is readily possible to use different spring elements 5 with regard to the spring hardness. Adapting the spring properties to the weight of the person using the shoe is easily possible in this way. The arrangement of the spring part 4 directly in the area of the heel bone is particularly favorable. The tie rods 6 can for example be made of glass fiber reinforced plastic material in this embodiment or consist of another resilient material. It is also conceivable to replace these tie rods with a cable pull. In the embodiment shown in FIGS. 3, 4 and 5, the recesses arranged in the wedge-shaped section of the insole form a front chamber 14 and a rear chamber 15 for the spring part 4. Between these chambers 14 and 15 there is a transverse web 16, which itself is designed as a spring element and is penetrated by the tie rod. In addition, this crossbar 16 acts as an abutment 3 for the spring elements 5 abutting on the crossbar 16. These spring elements differ from those shown in FIGS. 1 and 2 essentially in that they have special cavities inside which are filled with gas. The tie rod 6 also differs from the one already described, because in addition to the threaded section 21 provided with a right-hand thread, it carries a further threaded section 22 with a left-hand thread. To support the tie rod 6, a bushing is provided as the front bearing 9, while the rear pivot bearing is formed by an adjusting key 17 which can be displaced axially on the tie rod. The adjusting key 17 is non-rotatably connected to the tie rod 6, in that the tie rod 6 has a square at this end, for example, and the adjusting key has a corresponding inner square. 3, 4 and 5, the adjusting key 17 is shown in the rest position, the collar of the adjusting key 17 engaging in a lock 18. To change the spring rate, the adjusting key 17 is pulled out of this position and then engages with the collar in a lock 19. Now the spring rate of the spring elements 5 can be changed by turning the adjusting key 17 and thus the tie rod 6. To increase the spring rate, a clockwise rotation is carried out, the thrust washers 13 connected to the adjacent spring elements 5 and the nuts 20 being axially displaced. The movement of the right and left thrust washer is in opposite directions, since the thread 21 is a right-hand thread and the thread 22 is a left-hand thread. Appropriate stops for the axially movable parts are arranged on the tie rod 6 for the hardest and softest setting of the spring rate. For example, the bearing 9 serves the softest setting as a stop, while the threaded end forms the stop for the hardest setting.

Auch bei der Ausführungsform nach den Fig. 3, 4 und 5 wird die profilierte Laufsohle 1 erst nach dem Einbau des Federteiles in die Innensohle 2 auf die Unterseite der Innensohle 2 geklebt. Es ist ohne weiteres möglich, die aus dem Federteil4, den Kammern 14 und 15 und der Einstellvorrichtung bestehende Baueinheit von innen auswechselbar mit dem Schuh zu verbinden. Hierzu wird diese Baueinheit beispielsweise durch Einknöpfen mit der Innensohle 2 verbunden und eine entsprechende Decksohle über der Verbindungsstelle oder über den ganzen Sohlenbereich angebracht.In the embodiment according to FIGS. 3, 4 and 5, the profiled outsole 1 is only glued to the underside of the insole 2 after the spring part has been installed in the insole 2. It is readily possible to connect the structural unit consisting of the spring part 4, the chambers 14 and 15 and the adjusting device to the shoe in an interchangeable manner. For this purpose, this structural unit is connected, for example by buttoning, to the inner sole 2 and a corresponding cover sole is attached over the connection point or over the entire sole area.

Die Begrenzungsflächen der Kammern 7 entsprechend den Fig. 1 und 2 oder der Kammern 14 und 15 nach den Fig. und 4 können parallel zueinander oder auch unter einem spitzen Winkel zueinander verlaufen, um zusätzlich eine progressive oder degressive Veränderung der Federrate zu erzielen.The boundary surfaces of the chambers 7 according to FIGS. 1 and 2 or of the chambers 14 and 15 according to FIGS. And 4 can run parallel to one another or also at an acute angle to one another in order to additionally achieve a progressive or degressive change in the spring rate.

Auch die Ausführungsform nach den Fig. 3 und 4 gestattet eine sehr feinfühlige stufenlose Einstellung der Federrate, da etwa 40 Umdrehungen des Schlüssels möglich sind, um von der härtesten zur weichesten Einstellung zu kommen. Hierbei können auch die Federkraftveränderungen der einzelnen Kammern durch entsprechende Steigung der Gewinde 21 und 22 variiert werden. Außer den vorstehend gezeigten und beschriebenen Ausführungsformen ist es ohne weiteres möglich, das Federteil so anzuordnen, daß dieses nicht vom Ende des Schuhes aus, sondern von der Schuhseite aus eingestellt wird.The embodiment according to FIGS. 3 and 4 also allows a very sensitive, stepless adjustment of the spring rate, since approximately 40 turns of the key are possible in order to move from the hardest to the softest setting. The spring force changes of the individual chambers can also be varied by a corresponding pitch of the threads 21 and 22. In addition to the embodiments shown and described above, it is readily possible to arrange the spring part so that it is not adjusted from the end of the shoe, but from the shoe side.

Allgemein ist noch anzuführen, daß vorzugsweise das Federteil so im Keil der Innensohle 2 angeordnet wird, daß die Unterstützung im Bereich des Fersenmittelpunktes erfolgt. Die beidseitigen Druckscheiben 13 haben im Verhältnis zu den Federelementen 5 eine geringe Höhe, ungefähr ein Drittel der Höhe dieser Elemente 5. Vorzugsweise werden einheitlich ausgebildete Elastomer-Federelemente verwendet. In Spezialfällen ist es ohne weiteres möglich, die Federelemente aus unterschiedlichen Materialien, also mit verschiedenen Federraten, oder mit verschiedenen Formen auszuführen, um damit unterschiedliche Unterstützungen im Fußbereich zu erzielen und damit extreme Gewichte oder Fußfehler des Trägers auszugleichen.In general, it should also be mentioned that the spring part is preferably arranged in the wedge of the insole 2 in such a way that the support is provided in the area of the center of the heel. The pressure plates 13 on both sides have a small height in relation to the spring elements 5, approximately one third of the height of these elements 5. Preferably, elastomer spring elements of uniform design are used. In special cases, it is easily possible to design the spring elements from different materials, i.e. with different spring rates, or with different shapes in order to achieve different supports in the foot area and thus to compensate for extreme weights or foot defects of the wearer.

Bei der in den Fig. 6, 7 und 8 dargestellten Ausführungsform handelt es sich um eine Laufsohle, bei welcher die Einstellung bzw. Vorspannung des zwischen Laufsohle und Innensohle angeordneten Federelementes von außen sichtbar ist. Die Laufsohle 1 weist ein Fenster 25 auf, welches durch einen durchsichtigen oder durchscheinenden Einsatz oder aber bei einer etwas durchscheinenden Laufsohle durch einen Abschnitt dünnerer Sohlenstärke gebildet ist. Das durch den Zuganker 6 vorspannbare, elastomere oder gummielastische Federelement 27 ist einstückig ausgebildet und mit Hohlräumen und oberflächenseitigen Vertiefungen versehen, die die Elastizitäts- und Dämpfungseigenschaften verbessern. Das Federelement 27 stützt sich im Fersenbereich an einer gebogenen Druckscheibe 28 ab, welche der hinteren Laufsohlenkontur angepaßt ist. Die Druckscheibe 28 stützt sich ihrerseits in nicht näher dargestellter Weise drehbar am Zuganker 6 ab. Aufgrund ihrer gebogenen Form und der Abstützung direkt am Zuganker 6 kann die Druckscheibe 28 sehr dicht am Fersenende der Sohle angeordnet werden, was im Fersenbereich Platz für das Federelement 27 schafft. Beim Vorspannen des Federelements 27 bewegt sich die vordere auf ein Gewinde der Zugstange 6 aufgeschraubte Druckscheibe 29 in Richtung der hinteren Druckscheibe 28, wobei ein vorzugsweise aus einem Schaumstoff bestehender Ausgleichskörper 26 sich entsprechend ausdehnen kann und somit kein Hohlraum im Bereich der Druckscheibe 29 entsteht. Die der Druckscheibe 29 gegenüberliegende Seite des Ausgleichskörpers 26 ist an einer entgegengesetzt zur Druckscheibe 28 gebogenen dritten Druckscheibe abgestützt, die sich ihrerseits drehbar an der Zugstange 6 abstützt. Keine der drei Druckscheiben stützt sich damit an den benachbarten Oberflächen der Sohlenkammer ab, so daß die Sohle keiner Spannungsbeanspruchung ausgesetzt ist.In the embodiment shown in FIGS. 6, 7 and 8, it is an outsole in which the setting or before tension of the spring element arranged between the outsole and insole is visible from the outside. The outsole 1 has a window 25 which is formed by a transparent or translucent insert or, in the case of a somewhat translucent outsole, by a section of thinner sole thickness. The elastomeric or rubber-elastic spring element 27, which can be preloaded by the tie rod 6, is formed in one piece and is provided with cavities and depressions on the surface, which improve the elasticity and damping properties. The spring element 27 is supported in the heel area on a curved thrust washer 28 which is adapted to the rear outsole contour. The thrust washer 28 is in turn rotatably supported on the tie rod 6 in a manner not shown. Due to its curved shape and the support directly on the tie rod 6, the thrust washer 28 can be arranged very close to the heel end of the sole, which creates space for the spring element 27 in the heel area. When the spring element 27 is preloaded, the front thrust washer 29 screwed onto a thread of the pull rod 6 moves in the direction of the rear thrust washer 28, whereby a compensating body 26, which is preferably made of a foam, can expand accordingly and thus no cavity is created in the area of the thrust washer 29. The side of the compensating body 26 opposite the pressure plate 29 is supported on a third pressure plate bent opposite to the pressure plate 28, which in turn is rotatably supported on the pull rod 6. None of the three thrust washers are thus supported on the adjacent surfaces of the sole chamber, so that the sole is not exposed to any stress.

Um die Vorspannung der Feder durch das Fenster 25 deutlich sichtbar zu machen, haben der Ausgleichskörper26 und das Federelement 27 auffallend unterschiedliche Farben. Z. B. ist der Ausgleichskörper 26 weiß oder gelb und das Federelement 27 schwarz oder rot gefärbt. Die Elemente 26 und/oder 27 können auch fluoreszierend ausgebildet sein, wodurch in der Dunkelheit eine der Sicherheit des Läufers dienende Signalwirkung erzielt wird.In order to make the bias of the spring through the window 25 clearly visible, the compensating body 26 and the spring element 27 have strikingly different colors. For example, the compensating body 26 is colored white or yellow and the spring element 27 is colored black or red. The elements 26 and / or 27 can also be designed to be fluorescent, as a result of which a signal effect serving the safety of the runner is achieved in the dark.

Das Wesentliche der in den Fig. 2 bis 8 dargestellten Laufsohle besteht in dem durchsichtigen oder durchscheinenden Fenster, welches eine sichtbare Anzeige der Vorspannung des Federelementes 27 ermöglicht. Ein Vergleich der beiden Schuhe ermöglcht somit eine gleichmäßige Einstellung der Federelementvorspannung beider Schuhe. Das Fenster 25 kann beliebig geformt und durch einen Einsatz oder einen durchscheinenden Abschnitt der Laufsohle gebildet sein. In Fig. 6 ist ein dreieckförmiges Fenster dargestellt, welches sich in Richtung größerer Vorspannung erweitert. Fig.6a zeigt ein rautenförmiges Fenster 25a. Während das dreieckförmige oder keilförmige Fenster die Beurteilung der Größe der Federvorspannung erleichtert, erlaubt das rautenförmige Fenster einen leichteren Vergleich der Vorspannung der beiden Schuhe, da die Rautenmitte eine mittlere Einstellung optisch hervorhebt.The essence of the outsole shown in FIGS. 2 to 8 consists in the transparent or translucent window, which enables a visible display of the prestress of the spring element 27. A comparison of the two shoes thus enables a uniform setting of the spring element preload of both shoes. The window 25 can be of any shape and formed by an insert or a translucent portion of the outsole. In Fig. 6 a triangular window is shown, which widens in the direction of greater bias. 6a shows a diamond-shaped window 25a. While the triangular or wedge-shaped window makes it easier to assess the size of the spring preload, the diamond-shaped window allows an easier comparison of the preload of the two shoes, since the center of the diamond visually highlights a medium setting.

Claims (29)

1. Shoe, especially sports shoe, having an elastic sole (1, 2), at least one chamber (7, 14, 15) in the sole (1, 2) and a spring part (4) of elastomer-elastic material arranged in the chamber (7, 14, 15), characterised in that in the chamber (7, 14, 15) there is arranged at least one tension rod (6) extending substantially in a parallel plane to the sole (1, 2), which clamps in the spring part (4) between two abutments (13, 28, 29), in that the spring part (4) is arranged slidably in the chamber (7, 14, 15) and in that the tension rod (6) carries an adjusting device (11, 17) operable from the exterior which permits a variation of distance between the abutments (13, 28, 29).
2. Shoe according to Claim 1, characterised in that the spring part (4, 27) is steplessly adjustable.
3. Shoe according to Claim 1 or 2, characterised in that the spring part (4) consists of several elastomer-elastic spring elements (5) arranged side by side in the longitudinal direction of the sole.
4. Shoe according to Claim 3, characterised in that the spring element or elements (5, 27) is or are provided with cavities.
5. Shoe according to Claim 1, characterised in that the tension rod (6) extends in the longitudinal direction of the sole.
6. Shoe according to Claim 5, characterised in that the tension rod (6) is formed by a flexurally elastic component.
7. Shoe according to Claim 5, characterised in that the tension rod or rods (6) is or are formed by a draw cable.
8. Shoe according to Claim 1, characterised in that the tension rod (6) is connected at its inner end through a threading (21) with an abutment thrust washer (13).
9. Shoe according to Claim 1, characterised in that the two abutments (28, 29) which clamp the spring part in between them are supported on the tension rod (6).
10. Shoe according to Claim 9, characterised in that the tension rod (6) has in the regions of its ends two threaded sections (21, 22) with opposite threading directions for the oppositely directed stressing of the abutments (13) of the spring part (4, 15).
11. Shoe according to Claim 8 or 10, characterised in that at least one threading (21) of the tension rod (6) at the two threading ends comprises a stop each (bearing bush 9, threading end).
12. Shoe according to Claim 1, characterised in that the abutment (28) adjacent to the heel end of the sole is formed as a support arch adapted to the contour of the heel end.
13. Shoe according to Claim 1, characterised in that several tension rods (6), arranged side by side approximately parallel to the tread surface of the sole (1, 2), are provided for the adjustment of different elasticity zones.
14. Shoe according to Claim 1, characterised in that the sole (1, 2) contains, between an outer sole (1) and a inner sole (2), several chambers (7, 14, 15) for the accommodation of spring parts (4) and in that a cross bar (16) separating the chambers (14, 15) is arranged in the region of the heelbone, is itself formed as spring element, is penetrated by the tension rod (6) and forms and abutment (3) for the spring part (4).
15. Shoe according to Claim 1, characterised in that the spring part (4) is contained in a chamber (7, 14, 15) the mutually opposite defining faces of which proceed at least partly at an acute angle to one another.
16. Shoe according to Claim 1 or 15, characterised in that material with slip-favourable properties is arranged in the region of the defining faces of the chambers.
17. Shoe according to Claim 1, characterised in that the spring part (4), at least the part of the sole holding the spring part and the adjusting device are combined into a handlable unit.
18. Shoe according to Claim 17, characterised in that the unit forms a part of an inner sole (2) and is replaceably connected with the shoe.
19. Shoe according to Claim 1, characterised in that the tension rod (6) is connected with an adjusting key (17) which in the rest condition is adapted to the sole contour.
20. Shoe according to Claim 19; characterised in that the adjusting key (17) is displaceable telescopically in relation to the tension rod (6) into the adjusting position.
21. Shoe according to Claim 19, characterised in that a detent (18, 19) for the adjusting key (17) is arranged, both in the rest position and in the adjusting position.
22. Shoe according to Claim 1, characterised in that the spring part (27) is connected with a marking the position of which in relation to the sole is a measure for the initial stressing of the spring part (27), and in that the sole comprises a window (25) through which the marking is visible.
23. Shoe according to Claim 22, characterised in that the window (25) is formed by an insert, consisting of transparent material, on the tread surface of the sole.
24. Shoe according to Claim 22, characterised in that the thickness of the sole is reduced in a limited region to a value permitting transparency, for the formation of the window (25).
25. Shoe according to Claim 1, characterised in that the spring part (27) and at least one elastic filler body (26) are arranged side by side in the longitudinal direction of the sole in a common chamber of the sole (1, 2).
26. Shoe according to Claim 25, characterised in that the transition zone between the spring part (27) and the filler body (26) is visible from the exterior through a window (25) in the sole.
27. Shoe according to Claim 26, characterised in that the faces of the spring part (27) and of the filler body (26) which face the window (25) are differently coloured.
28. Shoe according to Claim 26, characterised in that the filler body (26) consists of foam material.
29. Shoe according to Claim 26, characterised in that the window (25) is of lozenge form or widens in wedge form in the direction of the tension rod to higher values of the initial stress of the spring part (27).
EP80108021A 1979-12-21 1980-12-18 Shoe with resilient sole Expired EP0031936B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80108021T ATE4852T1 (en) 1979-12-21 1980-12-18 SHOE WITH ELASTIC SOLE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792951572 DE2951572A1 (en) 1979-12-21 1979-12-21 SHOE WITH ELASTIC OUTSOLE
DE2951572 1979-12-21

Publications (3)

Publication Number Publication Date
EP0031936A1 EP0031936A1 (en) 1981-07-15
EP0031936B1 true EP0031936B1 (en) 1983-10-05
EP0031936B2 EP0031936B2 (en) 1988-09-14

Family

ID=6089161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80108021A Expired EP0031936B2 (en) 1979-12-21 1980-12-18 Shoe with resilient sole

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US (1) US4391048A (en)
EP (1) EP0031936B2 (en)
AT (1) ATE4852T1 (en)
DE (2) DE2951572A1 (en)

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Also Published As

Publication number Publication date
US4391048A (en) 1983-07-05
ATE4852T1 (en) 1983-10-15
DE2951572A1 (en) 1981-07-02
DE3065215D1 (en) 1983-11-10
EP0031936A1 (en) 1981-07-15
EP0031936B2 (en) 1988-09-14

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