EP0144613A1 - Sports shoe with a shock-absorbing outsole, and method of producing such a sports shoe - Google Patents

Sports shoe with a shock-absorbing outsole, and method of producing such a sports shoe Download PDF

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Publication number
EP0144613A1
EP0144613A1 EP84112060A EP84112060A EP0144613A1 EP 0144613 A1 EP0144613 A1 EP 0144613A1 EP 84112060 A EP84112060 A EP 84112060A EP 84112060 A EP84112060 A EP 84112060A EP 0144613 A1 EP0144613 A1 EP 0144613A1
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EP
European Patent Office
Prior art keywords
plugs
sports shoe
shoe according
insole
midsole
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.)
Granted
Application number
EP84112060A
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German (de)
French (fr)
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EP0144613B1 (en
Inventor
Peter R. Prof. Cavanagh
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.)
Puma SE
Original Assignee
Puma AG Rudolf Dassler Sport
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Filing date
Publication date
Application filed by Puma AG Rudolf Dassler Sport filed Critical Puma AG Rudolf Dassler Sport
Priority to AT84112060T priority Critical patent/ATE27223T1/en
Publication of EP0144613A1 publication Critical patent/EP0144613A1/en
Application granted granted Critical
Publication of EP0144613B1 publication Critical patent/EP0144613B1/en
Expired legal-status Critical Current

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    • 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
    • A43B5/00—Footwear for sporting purposes
    • A43B5/06—Running shoes; Track shoes

Definitions

  • the present invention relates to a sports shoe with a shock-absorbing outsole according to the preamble of claim 1 and to a method for producing such a sports shoe.
  • a sports shoe of the type described above is known from DE-PS 30 21 129.
  • a network or lattice structure made of yarns or the like which are resistant to stretching is connected to the upper side of a resiliently deformable sole layer.
  • the network or lattice is arranged on or around the inner layer of the sole. It is used here to distribute the impact loads, which are particularly high in the individual areas, for example in the heel area or in the ball area, over a larger area.
  • Such a sports shoe can no longer be changed in its damping properties after manufacture.
  • the present invention is intended to achieve the object which differentiates in the individual sole areas targeted reduction of the shock loads occurring in the midsole and, if necessary, the possibility of subsequently adapting the damping properties to the individual needs of the user or to the specific sport to be practiced.
  • the invention therefore makes it possible to provide the different areas of the outsole with different damping properties depending on the load.
  • the user when using interchangeable plugs, it is also possible for the user to be able to find and adjust the optimal damping for himself and, depending on the different running conditions, such as hard or soft floors or the like, the damping characteristic in the different sole areas can adjust.
  • Fig. 1, 1 is an outsole of a sports shoe, especially for longer running disciplines.
  • particularly high shock loads occur in the heel area 2 and in the ball area 3, the narrowly dotted darker areas representing the particularly highly stressed areas.
  • an intermediate support 4 shown schematically in FIG. 2, is provided in the outsole 1 in the area of the midsole 7, at least in the areas 2, 3, but preferably also in the adjacent zones 21, 31 on or around the heel and ball area 2, 3 is provided or can be provided with plugs serving as damping members.
  • the network structure preferably has a lattice shape, as shown in the circular sections of FIGS. 3 and 4, which show an enlarged section of the circle of FIGS. 1 and 2.
  • the Netzöff 5 square and circular in Figure 4. The distance between the network openings 5 can be selected according to the desired pressure distribution.
  • the intermediate carrier 4 advantageously consists of a punched-out band cutout, wherein the band can already be designed as a network.
  • the mesh openings 5 can also be punched out of a full band at the same time or later at all points or only in preferred zones in which attenuators are to be used later, or can be attached in any other suitable manner.
  • FIG. 5 shows a selection of possible damping members, preferably designed as plugs 6 and their arrangement in the intermediate carrier 4 as well as the arrangement of the intermediate carrier 4 in the outsole 1 or midsole 7.
  • the intermediate carrier 4 made of elastic material, in particular a fabric such as nylon, polyurethane or other synthetic fibers, is provided approximately in the area of the lower to the upper third of the soft-elastic, preferably volume-compressible midsole 7.
  • the midsole 7 is preferably made of highly porous material, such as foamed polyurethane or another soft, elastic foam plastic.
  • the intermediate carrier 4 can preferably be extrusion-coated with the material of the midsole 7 or it can also be formed in two parts, in which case it is then attached to the intermediate carrier 4 on both sides, preferably glued on.
  • the plugs 6 can be inserted into the intermediate carrier 4 before or after the midsole 7 is attached.
  • the plugs 6 are designed so that they can snap into a mesh opening 5, preferably interchangeably. Conveniently, they have the shape of two cones or pyramids arranged one above the other with a taper oriented downward toward the outsole 1. See the plugs 61, 62, 63 and 64 in FIG. 5. This results in larger upper contact surfaces 8 which ensure extensive contact with the insole 9 above or with a harder insole provided there and thus avoid punctiform peak loads.
  • the plugs 6 Approximately in the middle lower third to half of the plug height, the plugs 6 have a locking groove 10, preferably in the form of a circumferential annular groove, with which they can snap into a mesh opening 5. If necessary, a locking bead 11 can be provided above the intermediate carrier level for better fixation. Instead of the locking groove 10 or in addition, other locking and / or clamping elements can also be provided for fastening the plugs 6 on the intermediate carrier 4.
  • the facing towards the outsole 12 lower plug part may be formed blunt below (see stopper 63 to 67) and end at the inner surface 13 of the outsole '12, as with the stopper 64 or it may extend to the inner surface 13 of the outsole 12, as with the plugs Hn63, 65, or it can also protrude to the outer tread 14 and itself serve as a tread part, as with the plug 66.
  • the plugs like the plugs 66 and 67, can also be subsequently inserted through an opening 15 in the outsole 12 , wherein the opening 15 can also be closed from the outside by a blind plug 16.
  • the insole 9 or the corresponding insole is removably attached. This is done, for example, by latching or snap-in elements or by a Velcro fastener provided between the insole 9 and the midsole 7 or the lower, inward edge (lasting fold) of the upper material of the sports shoe.
  • a recess 17 can be provided at the top for screwing in a pull-out screw or the like. The plugs 64 to 66 could be inserted later from above, for example. ,
  • the support surfaces 8 can be designed such that plugs 6 inserted in adjacent network openings 5 touch or at least very closely adjoin one another, as is shown schematically in FIGS. 6 and 7 for round or square contact surfaces 8 is shown. The same is shown in FIG. 5 with regard to the plugs 61, 62, 63.
  • the plugs 6 are made of a suitable, cushioning, much harder material than that of the midsole 7, preferably of elastic, not or only slightly foamed materials such as nylon, polyurethane, polyethylene, polypropylene or the like.
  • the plugs 6 are designed in such a way that they have at least two resilient arms 18 which protrude obliquely outwards at least on one side, with which they practically lie in the midsole 7, as seen from the intermediate carrier 4 are anchored and stiffen them in a wider area.
  • These resilient arms 18th can, according to the plug 681 shown on the left, be oriented downwards towards the outsole 12 or - as with the middle plug 682 - upwards or - as with the right plug 683 - project upwards and downwards.
  • An outsole 1 with plugs 6 according to the invention is produced, for example, in such a way that an intermediate carrier 4 with the mesh openings 5 is first produced by at least in zones 2 and 3 and preferably also in zones 21 and 31 mesh openings 5 being or being made . Thereafter, the mesh openings 5 are suitable depending on the desired damping and as deemed necessary extension plug 6 hardness, namely harder material than Demjisme - gen of the midsole 7, inserted and the intermediate carrier 4 is then surrounded by flexible material, for example foamed, molded, umklocating or the like.
  • the outsole 12 is attached to this if it is not molded at the same time, as can also be the case with the upper part, not shown in the drawing.
  • a heel wedge can also be attached or molded with the midsole 7 in one piece, preferably molded on.
  • the areas 2, 3 of the outsole that are subjected to high or high loads have plugs 6 made of a material of lower hardness and / or less tightness than the areas 21, 31 adjoining them in the heel or ball area. This ensures the important effect that these highly or highly stressed areas of the outsole 1 are softer cushioned than the adjacent areas 21, 31, in which the support effect of the plug 7 is more effective.
  • the damping within the bale area 3 can also be controlled.
  • Plugs 6 made of a material of different hardness and / or tightness are advantageously arranged there, in such a way that plugs 6 with lower hardness and / or less tightness are arranged in the inner ball area than in the outer ball area.
  • a similar effect of the damping control can also be brought about by the fact that the plug density, ie the number of plugs per dm 2 in the highly or highly loaded areas 2, 3 is lower than that in the adjacent areas 21, 31.
  • the "aging process" of the material of the midsole 7 is also favorably influenced, even considerably delayed.
  • the foams of the midsole 7 used up to now generally lose about 50% of their shock-absorbing properties during the approx. First 300 km running distance, because the cell walls have a permanent curved shape. This effect occurs particularly in the highly stressed areas of the outsole 1.
  • the arrangement of the plugs 6 reduces the loads on the foamed midsole 7 in these areas 2, 3 and 21, 31 and thus also reduces the deformation work on the cell walls of the foamed material of the midsole 7.
  • the elasticity or compressibility of the midsole 7 is therefore retained much longer than is the case with known arrangements.
  • the intermediate carrier 4 can also be divided into several sections, for example into one section for the heel and into another section for the bale. It is also possible to arrange more than one intermediate support 4 in the area of the midsole 7 in order to improve the alignment of the plugs 6 approximately perpendicular to the plane of the outsole 1.
  • a particular advantage of the present invention can be seen in the fact that the damping effect along the outsole 1 can be controlled and optimized according to the specific requirements of the individual sole parts, without the production of such outsoles requiring extremely expensive shapes, because the "damping profile" over the entire
  • the surface of the outsole 1 can be determined by the intermediate carrier 4 and the specifically selected plugs 6 or can even be adapted subsequently.
  • the design of the injection molds or casting molds is therefore only determined by the profile of the outsole 12 and the thickness and shape of the midsole 7.

Abstract

An athletic shoe having a shock-absorbing running sole which has at least one intermediate support extending at least approximately in parallel with a major plane of the running sole. The intermediate openwork support is disposed in a softly elastic midsole provided between an insole and a running sole. For obtaining a targeted reduction of shock stresses occurring to a varying degree in the individual sole sections, plugs are inserted into the openwork support. The plugs are made of a material that is harder than that of the midsole and are disposed vertically with respect to the noted major plane thereof, at least in the sections that are highly or maximally stressed during the running and possibly also in the adjacent zones.

Description

Die vorliegende Erfindung bezieht sich auf einen Sportschuh mit einer stoßdämpfenden Laufsohle gemäß dem Oberbegriff des Anspruches 1 sowie auf ein Verfahren zur Herstellung eines derartigen Sportschuhes.The present invention relates to a sports shoe with a shock-absorbing outsole according to the preamble of claim 1 and to a method for producing such a sports shoe.

Ein Sportschuh der vorstehend erläuterten Art ist durch die DE-PS 30 21 129 bekannt. Bei diesem Sportschuh ist mit der Oberseite einer nachgiebig verformbaren Sohlenschicht ein Netz- oder Gitterwerk aus gegen Dehnung widerstandsfähigen Garnen oder dgl. verbunden. Das Netz- oder Gitterwerk ist auf der oder um die innere Sohlenschicht herum angeordnet. Es dient hierbei dazu, die Stoßbelastungen, die in den einzelnen Bereichen, beispielsweise im Fersenbereich oder im Ballenbereich besonders hoch sind, auf eine größere Fläche zu verteilen. Ein derartiger Sportschuh ist nach der Herstellung in seinen Dämpfungseigenschaften nicht mehr veränderbar.A sports shoe of the type described above is known from DE-PS 30 21 129. In the case of this sports shoe, a network or lattice structure made of yarns or the like which are resistant to stretching is connected to the upper side of a resiliently deformable sole layer. The network or lattice is arranged on or around the inner layer of the sole. It is used here to distribute the impact loads, which are particularly high in the individual areas, for example in the heel area or in the ball area, over a larger area. Such a sports shoe can no longer be changed in its damping properties after manufacture.

Mit der vorliegenden Erfindung soll die Aufgabe gelöst werden, die in den einzelnen Sohlenbereichen unterschiedlich auftretenden Stoßbelastungen in der Zwischensohle gezielt abzubauen und gegebenenfalls die Möglichkeit zu haben, die Dämpfungseigenschaften auch noch nachträglich an die individuellen Bedürfnisse des Benutzers bzw. an die auszuübende spezifische Sportart anpassen zu können.The present invention is intended to achieve the object which differentiates in the individual sole areas targeted reduction of the shock loads occurring in the midsole and, if necessary, the possibility of subsequently adapting the damping properties to the individual needs of the user or to the specific sport to be practiced.

Erfindungsgemäß wird diese Aufgabe durch die im Kennzeichen des Anspruches 1 bzw. des Anspruches 19 angegebenen Merkmale gelöst.According to the invention, this object is achieved by the features specified in the characterizing part of claim 1 and claim 19.

Die Erfindung ermöglicht es also trotz einheitlichen Materials für die Zwischensohle die verschiedenen Bereiche der Laufsohle je nach Belastung mit unterschiedlichen Dämpfungseigenschaften auszustatten. Insbesondere ist es bei der Verwendung von austauschbaren Stöpseln auch möglich, daß der Benutzer die für ihn optimale Dämpfung selbst finden und einstellen kann und eventuell je nach den unterschiedlichen Laufbedingungen, wie bei harten oder weichen Böden oder dgl., die Dämpfungscharakteristik in den verschiedenen Sohlenbereichen noch anpassen kann.Despite uniform material for the midsole, the invention therefore makes it possible to provide the different areas of the outsole with different damping properties depending on the load. In particular, when using interchangeable plugs, it is also possible for the user to be able to find and adjust the optimal damping for himself and, depending on the different running conditions, such as hard or soft floors or the like, the damping characteristic in the different sole areas can adjust.

Weitere vorteilhafte Einzelheiten der Erfindung sind in den Unteransprüchen angegeben und werden nachfolgend anhand der in der Zeichnung veranschaulichten Ausführungsbeispielen näher beschrieben. Dabei zeigen:

  • Fig. 1 schematisch in der Draufsicht eine Laufsohle eines Sportschuhes mit eingezeichneten Bereichen hoher und höchster Stoßbelastungen,
  • Fig. 2 einen Zwischenträger für Dämpfungselemente in der Zwischensohle,
  • Fig. 3 und 4 je eine vergrößerte Darstellung des Kreisausschnittes der Fig. 2 mit quadratischen bzw. runden Netzöffnungen,
  • Fig. 5 einen Querschnitt durch eine Sohle mit verschiedenen Ausführungsmöglichkeiten der Dämpfungsstöpsel,
  • Fig. 6 und 7 die mögliche enge Anordnung der oberen Auflageflächen der Dämpfungsstöpsel und die
  • Fig. 8 Ausführungsarten von Dämpfungsstöpseln mit federnd abstehenden Armen.
Further advantageous details of the invention are specified in the subclaims and are described in more detail below with reference to the exemplary embodiments illustrated in the drawing. Show:
  • 1 schematically shows a top view of an outsole of a sports shoe with marked areas of high and highest shock loads,
  • 2 an intermediate support for damping elements in the midsole,
  • 3 and 4 each an enlarged view of the circular section of FIG. 2 with square or round mesh openings,
  • 5 shows a cross section through a sole with different design options for the damping plugs,
  • 6 and 7, the possible close arrangement of the upper contact surfaces of the damping plugs and
  • Fig. 8 types of damping plugs with resiliently protruding arms.

In Fig. 1 ist mit 1 eine Laufsohle eines Sportschuhes, insbesondere für längere Laufdisziplinen bezeichnet. Beim Laufen treten besonders hohe Stoßbelastungen im Fersenbereich 2 und im Ballenbereich 3 auf, wobei die engpunktierten dunkleren Stellen die besonders hoch belasteten Bereiche darstellen. Um diese Stoßbelastungen der Ferse und des Fußballens wirksamer als bisher abbauen zu können und um in der Zwischensohle 7 ein "Durchtreten" zu vermeiden,ist in der Laufsohle 1 im Bereich der Zwischensohle 7 ein in Figur 2 schematisch dargestellter Zwischenträger 4 vorgesehen, der zumindest in den Bereichen 2, 3, vorzugsweise aber auch in den angrenzenden Zonen 21, 31 am bzw. um den Fersen- und Ballenbereich 2, 3 mit als Dämpfungsglieder dienenden Stöpseln versehen ist oder versehen werden kann. Die Netzstruktur besitzt vorzugsweise Gitterform, wie sie in den Kreisausschnitten der Figur 3 und 4 dargestellt ist, die einen vergrößerten Ausschnitt des Kreises der Figuren 1 und 2 zeigen. In Figur 3 sind die Netzöffnungen 5 quadratisch und in Figur 4 kreisrund. Der Abstand der Netzöffnungen 5 kann entsprechend der gewünschten Druckverteilung gewählt werden.In Fig. 1, 1 is an outsole of a sports shoe, especially for longer running disciplines. When running, particularly high shock loads occur in the heel area 2 and in the ball area 3, the narrowly dotted darker areas representing the particularly highly stressed areas. In order to be able to reduce these shock loads on the heel and the ball of the foot more effectively than before and to avoid "stepping through" in the midsole 7, an intermediate support 4, shown schematically in FIG. 2, is provided in the outsole 1 in the area of the midsole 7, at least in the areas 2, 3, but preferably also in the adjacent zones 21, 31 on or around the heel and ball area 2, 3 is provided or can be provided with plugs serving as damping members. The network structure preferably has a lattice shape, as shown in the circular sections of FIGS. 3 and 4, which show an enlarged section of the circle of FIGS. 1 and 2. In Figure 3 the Netzöff 5 square and circular in Figure 4. The distance between the network openings 5 can be selected according to the desired pressure distribution.

Vorteilhaft besteht der Zwischenträger 4 aus einem aus--gestanzten Bandausschnitt, wobei das Band bereits als Netz ausgeführt sein kann. Die Netzöffnungen 5 können auch aus einem vollen Band gleichzeitig oder später an allen Stellen oder nur in bevorzugten Zonen, in denen später Dämpfungsglieder eingesetzt werden sollen, ausgestanzt oder in sonst geeigneter Weise angebracht werden.The intermediate carrier 4 advantageously consists of a punched-out band cutout, wherein the band can already be designed as a network. The mesh openings 5 can also be punched out of a full band at the same time or later at all points or only in preferred zones in which attenuators are to be used later, or can be attached in any other suitable manner.

Eine Auswahl von möglichen, vorzugsweise als Stöpsel 6 ausgebildeten Dämpfungsgliedern und deren Anordnung im Zwischenträger 4 als auch die Anordnung des Zwischenträgers 4 in der Laufsohle 1 bzw. Zwischensohle 7 zeigt die Figur 5. 'FIG. 5 shows a selection of possible damping members, preferably designed as plugs 6 and their arrangement in the intermediate carrier 4 as well as the arrangement of the intermediate carrier 4 in the outsole 1 or midsole 7.

Der aus elastischem Material, insbesondere einem Gewebe, wie aus Nylon, Polyurethan oder anderen Kunstfasern bestehende Zwischenträger 4 ist etwa im Bereich des unteren bis oberen Drittels der weichelastischen, vorzugsweise volumenkompressiblen Zwischensohle 7 vorgesehen. Die Zwischensohle 7 besteht vorzugsweise aus hochporösem Material, wie geschäumtem Poyurethan oder einem anderen weichelastischen Schaumkunststoff. Der Zwischenträger 4 kann mit dem Material der Zwischensohle 7 vorzugsweise umspritzt sein oder diese kann auch zweiteilig ausgebildet sein, wobei sie dann beidseitig an dem Zwischenträger 4 befestigt, vorzugsweise angeklebt ist. Dabei können die Stöpsel 6 vor oder nach dem Anbringen der Zwischensohle 7 in den Zwischenträger 4 eingesetzt sein.The intermediate carrier 4 made of elastic material, in particular a fabric such as nylon, polyurethane or other synthetic fibers, is provided approximately in the area of the lower to the upper third of the soft-elastic, preferably volume-compressible midsole 7. The midsole 7 is preferably made of highly porous material, such as foamed polyurethane or another soft, elastic foam plastic. The intermediate carrier 4 can preferably be extrusion-coated with the material of the midsole 7 or it can also be formed in two parts, in which case it is then attached to the intermediate carrier 4 on both sides, preferably glued on. The plugs 6 can be inserted into the intermediate carrier 4 before or after the midsole 7 is attached.

Die Stöpsel 6 sind so ausgebildet, daß sie in eine Netzöffnung 5 vorzugsweise auswechselbar einrasten können. Günstigerweise besitzen sie die Form zweier übereinander angeordneter Kegel oder Pyramiden mit nach unten zur Laufsohle 1 ausgerichteter Verjüngung. Siehe hierzu die Stöpsel 61, 62, 63 und 64 in Figur 5. Dabei ergeben sich größere obere Auflageflächen 8, die eine großflächige Berührung mit der darüber befindlichen Brandsohle 9 oder mit einer dort unmittelbar vorgesehenen härteren Innensohle sicherstellen und damit punktuelle Spitzenbelastungen vermeiden.The plugs 6 are designed so that they can snap into a mesh opening 5, preferably interchangeably. Conveniently, they have the shape of two cones or pyramids arranged one above the other with a taper oriented downward toward the outsole 1. See the plugs 61, 62, 63 and 64 in FIG. 5. This results in larger upper contact surfaces 8 which ensure extensive contact with the insole 9 above or with a harder insole provided there and thus avoid punctiform peak loads.

Etwa im mittleren unteren Drittel bis zur Hälfte der Stöpselhöhe besitzen die Stöpsel 6 eine Rastnut 10, vorzugsweise in Form einer umlaufenden Ringnut, mit der sie in eine Netzöffnung 5 einrasten können. Gegebenenfalls kann zur besseren Fixierung ein Rastwulst 11 oberhalb der Zwischenträgerebene vorgesehen sein. Anstelle der Rastnut 10 oder zusätzlich können auch andere Rast- und/oder Klemmelemente zur Befestigung der Stöpsel 6 am Zwischenträger 4 vorgesehen sein.Approximately in the middle lower third to half of the plug height, the plugs 6 have a locking groove 10, preferably in the form of a circumferential annular groove, with which they can snap into a mesh opening 5. If necessary, a locking bead 11 can be provided above the intermediate carrier level for better fixation. Instead of the locking groove 10 or in addition, other locking and / or clamping elements can also be provided for fastening the plugs 6 on the intermediate carrier 4.

Der zur Laufsohle 12 weisende untere Stöpselteil kann unten stumpf ausgebildet sein (siehe Stöpsel 63 bis 67) und vor der Innenfläche 13 der Laufsohle'12 enden, wie bei dem Stöpsel 64, oder er kann sich bis zur Innenfläche 13 der Laufsohle 12 erstrecken, wie bei den StöpseHn63, 65, oder er kann auch bis zur äußeren Lauffläche 14 ragen und selbst als Laufflächenteil dienen, wie beim Stöpsel 66. Schließlich können die Stöpsel, wie die Stöpsel 66 und 67, auch nachträglich durch eine Öffnung 15 der Laufsohle 12 einsteckbar sein, wobei die Öffnung 15 auch von außen durch einen Blindstöpsel 16 verschlossen sein kann.The facing towards the outsole 12 lower plug part may be formed blunt below (see stopper 63 to 67) and end at the inner surface 13 of the outsole '12, as with the stopper 64 or it may extend to the inner surface 13 of the outsole 12, as with the plugs Hn63, 65, or it can also protrude to the outer tread 14 and itself serve as a tread part, as with the plug 66. Finally, the plugs, like the plugs 66 and 67, can also be subsequently inserted through an opening 15 in the outsole 12 , wherein the opening 15 can also be closed from the outside by a blind plug 16.

Wenn die Stöpsel 6 nachträglich von oben eingesetzt werden sollen, ist die Brandsohle 9 oder die entsprechende Innensohle abnehmbar angebracht. Dies geschieht beispielsweise durch Rast- oder Schnappelemente oder durch einen zwischen der Brandsohle 9 und der Zwischensohle 7 oder dem unteren, nach innen geschlagenen Rand (Zwickeinschlag) des Obermaterials des Sportschuhes vorgesehenen Klettenverschluß. Um die Stöpsel 6 wieder leicht entfernen zu können, kann oben eine Aussparung 17 zum Eindrehen einer Ausziehschraube oder dergleichen vorgesehen sein. Nachträglich von oben könnten beispielsweise die Stöpsel 64 bis 66 eingesetzt sein. ,If the plugs 6 are to be subsequently inserted from above, the insole 9 or the corresponding insole is removably attached. This is done, for example, by latching or snap-in elements or by a Velcro fastener provided between the insole 9 and the midsole 7 or the lower, inward edge (lasting fold) of the upper material of the sports shoe. In order to be able to easily remove the plugs 6 again, a recess 17 can be provided at the top for screwing in a pull-out screw or the like. The plugs 64 to 66 could be inserted later from above, for example. ,

Um eine möglichst gleichmäßige Druckverteilung auf der Brandsohle 9 zu erreichen, können die Auflageflächen 8 so ausgebildet sein, daß sich in benachbarten Netzöffnungen 5 steckende Stöpsel 6 berühren oder wenigstens sehr eng aneinandergrenzen, wie dies schematisch in den Fig. 6 und 7 für runde bzw. quadratische Auflageflächen 8 dargestellt ist. Entsprechendes ist auch in Fig. 5 hinsichtlich der Stöpsel 61, 62, 63 dargestellt.In order to achieve a pressure distribution on the insole 9 that is as uniform as possible, the support surfaces 8 can be designed such that plugs 6 inserted in adjacent network openings 5 touch or at least very closely adjoin one another, as is shown schematically in FIGS. 6 and 7 for round or square contact surfaces 8 is shown. The same is shown in FIG. 5 with regard to the plugs 61, 62, 63.

Die Stöpsel 6 bestehen aus einem geeigneten, dämpfenden, wesentlich härterem Material als das der Zwischensohle 7, vorzugsweise aus elastischem, nicht oder nur leicht geschäumten Materialien, wie Nylon, Polyurethan, Polyäthylen, Polypropylen oder dgl.The plugs 6 are made of a suitable, cushioning, much harder material than that of the midsole 7, preferably of elastic, not or only slightly foamed materials such as nylon, polyurethane, polyethylene, polypropylene or the like.

Eine sehr gleichmäßig Stoßverteilung kann man erhalten, wenn man gemäß Figur 8 die Stöpsel 6 so ausbildet, daß sie vom Zwischenträger 4 aus gesehen zumindest je zwei wenigstens nach einer Seite schräg nach außen abstehende federnde Arme 18 besitzen, mit denen sie praktisch in der Zwischensohle 7 verankert sind und diese in einem breiteren Bereich versteifen. Diese federnden Arme 18 können gemäß dem links dargestellten Stöpsel 681 nach unten zur Laufsohle 12 hin ausgerichtet sein oder - wie beim mittleren Stöpsel 682 - nach oben oder - wie beim rechten Stöpsel 683 - nach oben und nach unten ragen.A very even shock distribution can be obtained if, according to FIG. 8, the plugs 6 are designed in such a way that they have at least two resilient arms 18 which protrude obliquely outwards at least on one side, with which they practically lie in the midsole 7, as seen from the intermediate carrier 4 are anchored and stiffen them in a wider area. These resilient arms 18th can, according to the plug 681 shown on the left, be oriented downwards towards the outsole 12 or - as with the middle plug 682 - upwards or - as with the right plug 683 - project upwards and downwards.

Die Herstellung einer Laufsohle 1 mit Stöpseln 6 gemäß der Erfindung erfolgt beispielsweise so, daß zunächst ein Zwischenträger 4 mit den Netzöffnungen 5 hergestellt wird, indem wenigstens in den Zonen 2 und 3 und vorzugsweise auch in den Zonen 21 und 31 Netzöffnungen 5 angebracht sind oder werden. Danach werden die Netzöffnungen 5 je nach gewünschter Dämpfung und als notwendig erachteter Erstreckung Stöpsel 6 geeigneter Härte, nämlich härteren Materials als demjeni- gen der Zwischensohle 7, eingesetzt und der Zwischenträger 4 dann mit weichelastischem Material umgeben, beispielsweise umschäumt, umspritzt, umklebt oder dgl. Hierauf wird die Laufsohle 12 angebracht, wenn sie nicht zugleich mit angeformt wird, wie dies auch mit dem zeichnerisch nicht dargestellten 0ber.teil der Fall sein kann. Dabei kann ein Fersenkeil mit angebracht oder mit der Zwischensohle 7 aus einem Stück geformt, vorzugsweise angespritzt sein.An outsole 1 with plugs 6 according to the invention is produced, for example, in such a way that an intermediate carrier 4 with the mesh openings 5 is first produced by at least in zones 2 and 3 and preferably also in zones 21 and 31 mesh openings 5 being or being made . Thereafter, the mesh openings 5 are suitable depending on the desired damping and as deemed necessary extension plug 6 hardness, namely harder material than Demjéni - gen of the midsole 7, inserted and the intermediate carrier 4 is then surrounded by flexible material, for example foamed, molded, umklebt or the like. The outsole 12 is attached to this if it is not molded at the same time, as can also be the case with the upper part, not shown in the drawing. A heel wedge can also be attached or molded with the midsole 7 in one piece, preferably molded on.

Mit Vorteil besitzen die hoch- bzw. höchstbelasteten Bereiche 2, 3 der Laufsohle 1 Stöpsel 6 aus einem Material geringerer Härte und/oder geringerer Dichtigkeit als die daran angrenzenden Bereiche 21, 31 im Fersen- bzw. Ballenbereich. Damit ist der wichtige Effekt sichergestellt, daß diese hoch- bzw. höchstbelasteten Bereiche der Laufsohle 1 weicher gedämpft sind als die angrenzenden Bereiche 21, 31, bei denen die Stützwirkung der Stöpsel 7 besser zum Tragen kommt.Advantageously, the areas 2, 3 of the outsole that are subjected to high or high loads have plugs 6 made of a material of lower hardness and / or less tightness than the areas 21, 31 adjoining them in the heel or ball area. This ensures the important effect that these highly or highly stressed areas of the outsole 1 are softer cushioned than the adjacent areas 21, 31, in which the support effect of the plug 7 is more effective.

In vergleichbarer Weise kann auch die Dämpfung innerhalb des Ballenbereiches 3 gesteuert sein. Mit Vorteil sind dort Stöpsel 6 aus einem Material unterschiedlicher Härte und/oder Dichtigkeit angeordnet und zwar derart, daß im Innenballenbereich Stöpsel 6 mit geringerer Härte und/oder geringerer Dichtigkeit angeordnet sind als im Außenballenbereich.In a comparable manner, the damping within the bale area 3 can also be controlled. Plugs 6 made of a material of different hardness and / or tightness are advantageously arranged there, in such a way that plugs 6 with lower hardness and / or less tightness are arranged in the inner ball area than in the outer ball area.

Ein ähnlicher Effekt der Dämpfungssteuerung kann auch dadurch bewirkt werden, daß die Stöpseldichte, d.h. die Anzahl der Stöpsel pro dm2 in den hoch- bzw. höchstbelasteten Bereichen 2, 3 geringer ist als diejenige in den angrenzenden Bereichen 21, 31.A similar effect of the damping control can also be brought about by the fact that the plug density, ie the number of plugs per dm 2 in the highly or highly loaded areas 2, 3 is lower than that in the adjacent areas 21, 31.

Durch die in den bevorzugten Zonen 2, 3 bzw. 21, 31 der Laufsohle im Zwischenträger 4 vorgesehenen Stöpsel 6 wird auch der "Alterungsprozeß" des Materials der Zwischensohle 7 günstig beeinflußt, ja sogar wesentlich verzögert. Die bisher verwendeten Schaumstoffe der Zwischensohle 7 verlieren nämlich im allgemeinen während der ca. ersten 300 km Laufstrecke etwa 50 % ihrer stoßdämpfenden Eigenschaften, weil die Zellenwände eine bleibende gekrümmte Form besitzen. Dieser Effekt tritt besonders in den hoch belasteten Bereichen der Laufsohle 1 auf. Durch die Anordnung der Stöpsel 6 werden die Belastungen auf die geschäumte Zwischensohle 7 in diesen Bereichen 2, 3 bzw. 21, 31 reduziert und damit auch die Verformungsarbeit auf die Zellwände des geschäumten Materials der Zwischensohle 7 verringert. Die Elastizität bzw. Kompressibilität der Zwischensohle 7 bleibt daher wesentlich länger erhalten, als dies bei bekannten Anordnungen der Fall ist.By the plugs 6 provided in the preferred zones 2, 3 and 21, 31 of the outsole in the intermediate carrier 4, the "aging process" of the material of the midsole 7 is also favorably influenced, even considerably delayed. The foams of the midsole 7 used up to now generally lose about 50% of their shock-absorbing properties during the approx. First 300 km running distance, because the cell walls have a permanent curved shape. This effect occurs particularly in the highly stressed areas of the outsole 1. The arrangement of the plugs 6 reduces the loads on the foamed midsole 7 in these areas 2, 3 and 21, 31 and thus also reduces the deformation work on the cell walls of the foamed material of the midsole 7. The elasticity or compressibility of the midsole 7 is therefore retained much longer than is the case with known arrangements.

Grundsätzlich kann der Zwischenträger 4 auch in mehrere Teilstücke unterteilt sein, beispielsweise in ein Teilstück für die Ferse und in ein weiteres Teilstück für den Ballen. Auch ist es möglich, im Bereich der Zwischensohle 7 mehr als einen Zwischenträger 4 anzuordnen, um die Ausrichtung der Stöpsel 6 etwa senkrecht zur Ebene der Laufsohle 1 noch zu verbessern.In principle, the intermediate carrier 4 can also be divided into several sections, for example into one section for the heel and into another section for the bale. It is also possible to arrange more than one intermediate support 4 in the area of the midsole 7 in order to improve the alignment of the plugs 6 approximately perpendicular to the plane of the outsole 1.

Ein besonderer Vorteil der vorliegenden Erfindung ist darin zu sehen, daß die Dämpfungswirkung längs der Laufsohle 1 den spezifischen Anforderungen der einzelnen Sohlenteile entsprechend gesteuert und optimiert werden kann, ohne daß die Herstellung solcher Laufsohlen extrem teuere Formen erfordert, weil das "Dämpfungsprofil" über die gesamte Fläche der Laufsohle 1 von dem Zwischenträger 4 und den spezifisch ausgesuchten Stöpseln 6 bestimmbar oder sogar nachträglich anpassbar ist. Die Ausbildung der Spritz-oder Gießformen ist also lediglich durch das Profil der Laufsohle 12 und die Dicke und Form der Zwischensohle 7 bestimmt.A particular advantage of the present invention can be seen in the fact that the damping effect along the outsole 1 can be controlled and optimized according to the specific requirements of the individual sole parts, without the production of such outsoles requiring extremely expensive shapes, because the "damping profile" over the entire The surface of the outsole 1 can be determined by the intermediate carrier 4 and the specifically selected plugs 6 or can even be adapted subsequently. The design of the injection molds or casting molds is therefore only determined by the profile of the outsole 12 and the thickness and shape of the midsole 7.

Claims (14)

1. Sportschuh mit einer stoßdämpfenden Laufsohle, die zumindest einen, wenigstens annähernd in der Sohlenebene verlaufenden Zwischenträger aufweist, dadurch gekennzeichnet, daß der Zwischenträger (4) in der zwischen der Brandsohle (9) oder der Innensohle und der Laufsohle (12) vorgesehenen weichelastischen Zwischensohle (7) angeordnet ist und wenigstens zum Teil Netzstruktur aufweist, und daß in die Netzöffnungen (5) des Zwischenträgers (4) zumindest in den beim Laufen hoch- bzw. höchstbelasteten Bereichen (2, 3) und gegebenenfalls auch in den angrenzenden Zonen (21, 31) senkrecht zur Lauffläche stehende Stöpsel (6) aus härterem Material als das der Zwischensohle (7) eingesetzt sind.1. Sports shoe with a shock-absorbing outsole, which has at least one, at least approximately in the sole plane extending intermediate carrier, characterized in that the intermediate carrier (4) in the soft elastic midsole provided between the insole (9) or the insole and the outsole (12) (7) is arranged and at least partially has a network structure, and that in the network openings (5) of the intermediate carrier (4) at least in the areas (2, 3) which are highly or most heavily loaded during running and, if appropriate, also in the adjacent zones (21 , 31) plugs (6) which are perpendicular to the tread and are made of harder material than the midsole (7). 2. Sportschuhnach Anspruch 1, dadurch gekennzeichnet, daß die Stöpsel (6) zur Brandsohle (9) oder zur Innensohle hin eine großflächige Auflagefläche (8) aufweisen.2. Sports shoe according to claim 1, characterized in that the plugs (6) towards the insole (9) or towards the insole have a large contact surface (8). 3. Sportschuh nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Stöpsel (6) zumindest von der Ebene des Zwischenträgers (4) aus zur Laufsohle (12) hin verjüngt ausgehildet sind.3. Sports shoe according to claim 1 or 2, characterized in that the plugs (6) at least from the level of the intermediate carrier (4) from the outsole (12) are tapered. 4. Sportschuh nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die brandsohlen- oder innensohlenseitigen Auflageflächen (8) von in benachbarten Netzöffnungen (5) vorgesehenen Stöpseln (6) eng aneinander angrenzen oder sich berühren.4. Sports shoe according to one of claims 1 to 3, characterized in that the insoles or insole-side contact surfaces (8) of plugs (6) provided in adjacent mesh openings (5) closely adjoin or touch each other. 5. Sportschuh nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stöpsel (6) in den Zwischenträger (4) eingesteckt und gemeinsam vom Material der Zwischensohle (7) umspritzt sind.5. Sports shoe according to one of claims 1 to 4, characterized in that the plugs (6) are inserted into the intermediate carrier (4) and are molded together by the material of the midsole (7). 6. Sportschuh nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Stöpsel (6) von der Brandsohle (9) oder Innensohle her einsetzbar sind und die Brandsohle (9) und die Innensohle durch einen Klettenverschluß mit der Zwischensohle (7) und/oder mit dem Zwickeinschlag (Rand) des Schuhoberteiles verbindbar ist.6. Sports shoe according to one of claims 1 to 5, characterized in that the plugs (6) from the insole (9) or insole can be used and the insole (9) and the insole by a Velcro fastener with the midsole (7) and / or is connectable with the lasting fold (edge) of the shoe upper. 7. Sportschuh nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Stöpsel (6) von der Laufsohle (12) her einsetzbar sind und die Laufsohle (12) an den Einsetzstellen entsprechende Öffnungen (15) aufweist.7. Sports shoe according to one of claims 1 to 5, characterized in that the plugs (6) from the outsole (12) can be used and the outsole (12) has corresponding openings (15) at the insertion points. 8. Sportschuh nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Zwischenträger (4) aus elastischem Material besteht und die Stöpsel (6) in die Netzöffnungen (5) mittels Rastelementen einschnappbar ausgebildet sind.8. Sports shoe according to one of claims 1 to 7, characterized in that the intermediate carrier (4) consists of elastic material and the plugs (6) in the mesh openings (5) are designed to be snap-fit by means of locking elements. 9. Sportschuh nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Stöpsel (6) die Form zweier übereinander angeordneter Kegel oder Pyramiden aufweisen.9. Sports shoe according to one of claims 1 to 8, characterized in that the plugs (6) have the shape of two cones or pyramids arranged one above the other. 10.Sportschuh nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Stöpsel (6) oder ein Teil derselben zumindest auf einer Seite des Zwischenträgers (4) wenigstens zwei schräg nach außen abstehende, federnde Arme (18) besitzen.10.Sport shoe according to one of claims 1 to 9, characterized in that the plugs (6) or part thereof at least on one side of the intermediate carrier (4) have at least two resilient arms (18) projecting obliquely outwards. 11. Sportschuh nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die hoch- bzw. höchstbelasteten Bereiche (2,3) Stöpsel (6) aus einem Material geringerer Härte und/oder Dichtigkeit besitzen als die daran angrenzenden Bereiche (21,31) im Fersen- bzw. Ballenbereich.11. Sports shoe according to one of claims 1 to 10, characterized in that the highly or highly stressed areas (2,3) have plugs (6) made of a material of lower hardness and / or tightness than the adjacent areas (21,31 ) in the heel or ball area. 12. Sportschuh nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß im Ballenbereich (3) Stöpsel (6) aus einem Material unterschiedlicher Härte und/oder Dichtigkeit angeordnet sind und zwar derart, daß im Innenballenbereich Stöpsel (6) mit geringerer Härte und/oder geringerer Dichtigkeit angeordnet sind als im Außenballenbereich.12. Sports shoe according to one of claims 1 to 11, characterized in that in the ball area (3) stopper (6) made of a material of different hardness and / or tightness are arranged such that in the inner ball area stopper (6) with lower hardness and / or less tightness are arranged than in the outer bale area. 13. Sportschuh nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Stöpseldichte in den hoch- bzw. höchstbelasteten Bereichen (2,3) geringer ist als diejenige in den angrenzenden Bereichen (21,31).13. Sports shoe according to one of claims 1 to 12, characterized in that the plug density in the highly or highly stressed areas (2,3) is lower than that in the adjacent areas (21,31). 14. Verfahren zur Herstellung eines Sportschuhes nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß zumindest ein Zwischenträger (4) wenigstens annähernd in der Gestalt der Zwischensohle (7) zumindest in den hoch- und höchstbelasteten Bereichen (2,3) und gegebenenfalls auch in den angrenzenden Zonen (21,31) mit Netzöffnungen (5) versehen wird, daß in die oder in einen Teil der Netzöffnungen (5) Stöpsel (6) eingesteckt werden, um die Belastbarkeit der hochbelasteten Bereiche (2,3) und gegebenenfalls der angrenzenden Zonen (21,31) zu erhöhen und daß danach der Zwischenträger (4) mit den Stöpseln (6) mit weichelastischem, kompressiblem Kunststoff in Form der Zwischensohle (7), gegebenenfalls einschließlich eines angeformten Fersenksils, umformt wird.14. A method for producing a sports shoe according to one of claims 1 to 13, characterized in that at least one intermediate carrier (4) at least approximately in the shape of the midsole (7) at least in the highly and highly stressed areas (2,3) and optionally is also provided in the adjacent zones (21, 31) with mesh openings (5) that plugs (6) are inserted into or into part of the mesh openings (5) in order to increase the resilience of the highly stressed areas (2, 3) and, if necessary of the adjacent zones (21, 31) and that the intermediate carrier (4) with the plugs (6) is then reshaped with soft, compressible plastic in the form of the midsole (7), optionally including a molded heel cable.
EP84112060A 1983-10-24 1984-10-09 Sports shoe with a shock-absorbing outsole, and method of producing such a sports shoe Expired EP0144613B1 (en)

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AT84112060T ATE27223T1 (en) 1983-10-24 1984-10-09 SPORTS SHOE WITH A SHOCK ABSORBING OUTSOLE AND METHOD OF MAKING SUCH SPORTS SHOE.

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DE3338557 1983-10-24
DE19833338557 DE3338557A1 (en) 1983-10-24 1983-10-24 SPORTSHOE WITH A SHOCK ABSORBING OUTSOLE AND METHOD FOR PRODUCING SUCH A SPORTSHOE

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EP0144613A1 true EP0144613A1 (en) 1985-06-19
EP0144613B1 EP0144613B1 (en) 1987-05-20

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EP (1) EP0144613B1 (en)
AT (1) ATE27223T1 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611122A1 (en) * 1987-02-20 1988-08-26 Autry Ind SHOE WITH CUSHIONING MIDSOLE, CUSHIONING MIDSOLE AND METHOD FOR MANUFACTURING THE SAME

Also Published As

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ATE27223T1 (en) 1987-06-15
DE3463723D1 (en) 1987-06-25
EP0144613B1 (en) 1987-05-20
DE3338557A1 (en) 1985-05-02
US4608768A (en) 1986-09-02

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