EP0590400B1 - Rotary fastening device for a sports shoe - Google Patents

Rotary fastening device for a sports shoe Download PDF

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Publication number
EP0590400B1
EP0590400B1 EP93114690A EP93114690A EP0590400B1 EP 0590400 B1 EP0590400 B1 EP 0590400B1 EP 93114690 A EP93114690 A EP 93114690A EP 93114690 A EP93114690 A EP 93114690A EP 0590400 B1 EP0590400 B1 EP 0590400B1
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EP
European Patent Office
Prior art keywords
stop
stop arm
housing
cable pulley
rotary
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Expired - Lifetime
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EP93114690A
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German (de)
French (fr)
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EP0590400A1 (en
Inventor
Robert Schoch
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A43C11/16—Fastenings secured by wire, bolts, or the like
    • A43C11/165—Fastenings secured by wire, bolts, or the like characterised by a spool, reel or pulley for winding up cables, laces or straps by rotation
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A43C11/16—Fastenings secured by wire, bolts, or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2183—Ski, boot, and shoe fasteners

Definitions

  • the invention relates to a twist lock for a sports shoe, according to the preamble of claim 1.
  • a twist lock of the type required in the preamble of claim 1 is known from EP-A-393 380.
  • the flaps of a sports shoe can be contracted and released by changing the effective length of a traction cable arrangement by a rotary movement of a rotary actuating device in one direction or the other.
  • a locking blade device is arranged between the rotary actuation device and the sheave, which contains an intermediate element which can be rotated while maintaining an empty travel, a pawl carried by this intermediate element and a toothed ring incorporated in a housing cover, whereby the sheave is rotated by the rotary actuating device, preferably with the interposition of a planetary gear mechanism, the sun gear of which has a downwardly extending, pivot-like axial extension which forms a central bearing journal for the sheave.
  • the rotary actuator can preferably be designed as a cap-shaped rotary handle and screwed to a journal end of the sun gear extending axially upward through a housing cover, the lateral peripheral wall of the rotary handle largely covering the housing and its cover at the bottom.
  • the invention is therefore based on the object of developing a rotary closure in the preamble of claim 1 while maintaining the advantages of the known embodiment described above in such a way that with a relatively simple structural design, a rotary movement of the pulley beyond two turns is made possible.
  • the stop device is essentially formed by two flat stop arms which are mounted coaxially with respect to one another about the central housing axis and are arranged one above the other.
  • the upper first stop arm is located directly below the sheave, the driving projection of which is designed and arranged such that after the first rotation of the sheave and when this rotational movement continues, it only comes into engagement with the first stop arm and the sheave together with this first stop arm then one can make a second turn.
  • the lower second stop arm is in driving connection with the first stop arm via a driving cam in such a way that this second stop arm only becomes effective after a second rotation of the rope sheave and upon a further continuation of this rotary movement.
  • the stationary housing stop is arranged in the path of movement of the second stop arm at a point which is shortly before the completion of a complete revolution of this second stop arm.
  • the rope sheave can carry out a maximum of approximately three revolutions, for example approximately 2 3/4 revolutions, before a further rotary movement is prevented or limited by the stationary housing stop (the latter occurs in order to damage a pull rope by to rule out overstretching).
  • the twist lock according to the invention can be attached or fastened on the shaft of any suitable sports shoe, so that its traction cable arrangement can be connected in a favorable manner to locking flaps or other parts of the sports shoe which can be contracted, in order thereby to be able to adapt the shoe precisely to the foot of a user.
  • this rotary closure according to the invention can be designed in the same way as in EP-A-393 380 described at the outset, so that in the drawing only the lower one, which is relevant for explaining the present invention Part of this twist lock is illustrated, while the upper part with pawl device, rotary actuating device, cover, etc. is of the same construction as the aforementioned known embodiment, to which express reference is made.
  • the lower part of the twist lock has an approximately shell-shaped, essentially circular housing 1, which can be fastened in a suitable manner to a sports shoe, not shown, on its shaft, for example with the aid of lateral fastening tabs 2.
  • this housing 1 there is one central housing axis 1 a rotatably operable rope pulley 3 rotatably mounted, on which a pull rope arrangement 4 - depending on the rotary movement - can be wound or unwound, in order thereby to be able to change the effective length of the rope pull arrangement 4 in the desired manner.
  • two traction cable ends 4a, 4b are fastened diametrically opposite on the pulley 3, which ends may belong to a single traction cable or to two traction cables.
  • the rope sheave 3 is accommodated in the housing 1 in such a way that the outer peripheral edge of its upper sheave part 3a is guided in a kind of annular groove 1b on the upper edge of the housing.
  • the pulley 3 has a central bore 3b into which a downwardly extending, trunnion-like axial extension of a sun gear (not shown in more detail) of a planetary gear belonging to the rotary actuation device extends, this trunnion-like extension forming a central bearing journal for the pulley 3.
  • a stop device is rotatably mounted in the housing 1, which is essentially coaxial with one another by two central housing axis 1a rotatably mounted, superimposed flat stop arms, namely an upper first stop arm 5 and a lower second stop arm 6 is formed.
  • the upper first stop arm 5 has a central bearing section 5a and a circular sector-shaped outer stop section 5b adjoining it radially outward, and in approximately the same way the lower second stop arm 6 also has a central bearing section 6a and a circular sector-shaped adjoining it radially outward outer stop section 6b.
  • an upwardly projecting driving cam 7 is firmly attached, the height of which is at most as large as the material thickness of the upper stop arm 5, which can be seen in FIG. 1 (left half).
  • a driving projection 8 is fixedly attached, which is located radially within the driving cam 7 and is at most as high as the material thickness of the first stop arm 5.
  • a stationary stop 9 is also provided on the housing base 1c and in the peripheral edge region, which serves to limit the rotational movement of the lower second stop arm 6 and thus - as will be explained in more detail - also the pulley 3 in both directions of rotation.
  • this housing stop 9 extends from the housing base 1c upwards by an amount that is at most as large as the material thickness of the lower second stop arm 6.
  • the central bearing section 6a of the second stop arm 6 has an axially downwardly extending, circular bearing projection 10, which is mounted and guided in a sliding manner in a central bearing bore 11 in the housing base 1c. At least the remaining part of the central bearing section 6a of this second stop arm 6, but preferably also at least the largest part of the outer stop section 6b, is slidably supported on the housing base 1c.
  • the Central bearing section 6a of the second stop arm 6 also has a bearing pin 12 which extends coaxially to the bearing extension 10 and which fits into a central bearing bore 5a 'in the bearing section 5a of the upper first stop arm 5, so that for this bearing section 5a and thus also for the whole upper first stop arm 5 in a very simple manner, a reliable pivot bearing and guidance is created.
  • the twist lock can be made at least partially from a suitable, preferably castable and machinable plastic material. It is furthermore particularly advantageous with regard to the relatively simple and inexpensive production if at least the housing 1, the rope pulley 3 and the stop arms 5, 6 are made of such plastic material.
  • FIGS. 2 to 5 A winding process of the pull cable arrangement 4 or the pull cable ends 4a and 4b on the sheave 3 is explained below with reference to FIGS. 2 to 5, it being emphasized again that these FIGS. 2 to 5 horizontal sectional views corresponding to the section line II-II in FIG. 1 show from below.
  • FIG. 2 The zero position is illustrated in FIG. 2, in which the pull rope arrangement 4 is completely unwound from the sheave.
  • the outer stop section 6b rests on one side of the stationary housing stop 9, while on one side of the driving cam 7 the outer stop section 5b of the upper first stop arm 5 rests on one side again the driving projection 8 of the sheave is present.
  • the traction cable arrangement 4 or its traction cable ends 4a and 4b are now to be wound onto the pulley 3, then the pulley 3 is rotated in the direction of arrow 13 by means of the rotary actuating device explained at the beginning.

Abstract

In this rotary fastening device, parts of a sports shoe are drawn together by means of a pull-cable arrangement (4) which can be wound up and unwound on a cable pulley (3) which is mounted rotatably in a housing (1) and which has a driving projection (8) and interacts with a stationary stop (9) as well as with a stop arrangement, which is mounted rotatably coaxially therewith and has two rotatable stop arms (5, 6), in such a manner that, between the end stops, up to approximately three winding turns of the cable pulley (3) are made possible. The rotary fastening device is thus on the one hand designed for a relatively great lengthwise adjustment and on the other hand secured against overextension of the pull cable.

Description

Die Erfindung betrifft einen Drehverschluß für einen Sportschuh, entsprechend dem Oberbegriff des Anspruches 1.The invention relates to a twist lock for a sports shoe, according to the preamble of claim 1.

Ein Drehverschluß der im Oberbegriff des Anspruches 1 vorausgesetzten Art ist aus der EP-A-393 380 bekannt. Hierbei können die Schließlappen eines Sportschuhes dadurch zuammengezogen und gelöst werden, daß eine Zugseilanordnung durch eine Drehbewegung einer Drehbetätigungseinrichtung in der einen oder anderen Richtung in ihren wirksamen Länge verändert wird. Um dabei den Sportschuh an den Fuß eines Benutzers genau anpassen zu können, ist zwischen der Drehbetätigungseinrichtung und der Seilscheibe eine Sperrklingeneinrichtung angeordnet, die ein unter Einhaltung eines Leerweges drehbares Zwischenelement, eine von diesem Zwischenelement getragene Sperrklinke sowie einen in einem Gehäusedeckel eingearbeiteten Zahnring enthält, wobei die Seilscheibe von der Drehbetätigungseinrichtung unter Zwischenschaltung vorzugsweise eines Planetengetriebes gedreht wird, dessen Sonnenrad eine sich nach unten erstreckende, drehzapfenartige axiale Verlängerung aufweist, die einen zentralen Lagerzapfen für die Seilscheibe bildet. Die Drehbetätigungseinrichtung kann dabei vorzugsweise als kappenförmiger Drehgriff ausgebildet und mit einem sich durch einen Gehäusedeckel axial nach oben erstreckenden Lagerzapfenende des Sonnenrades verschraubt sein, wobei die seitliche Umfangswand des Drehgriffes das Gehäuse und dessen Deckel nach unten hin weitgehend überdeckt.A twist lock of the type required in the preamble of claim 1 is known from EP-A-393 380. The flaps of a sports shoe can be contracted and released by changing the effective length of a traction cable arrangement by a rotary movement of a rotary actuating device in one direction or the other. In order to be able to precisely adapt the sports shoe to the foot of a user, a locking blade device is arranged between the rotary actuation device and the sheave, which contains an intermediate element which can be rotated while maintaining an empty travel, a pawl carried by this intermediate element and a toothed ring incorporated in a housing cover, whereby the sheave is rotated by the rotary actuating device, preferably with the interposition of a planetary gear mechanism, the sun gear of which has a downwardly extending, pivot-like axial extension which forms a central bearing journal for the sheave. The rotary actuator can preferably be designed as a cap-shaped rotary handle and screwed to a journal end of the sun gear extending axially upward through a housing cover, the lateral peripheral wall of the rotary handle largely covering the housing and its cover at the bottom.

Um bei dieser bekannten Ausführung stets ein zuverlässiges Anpassen des Sportschuhes bei möglichst langem Seilweg erreichen zu können, wird eine Ausbildung vorgeschlagen, die annähernd zwei Umdrehungen der Seilscheibe gestattet, wobei eine Anschlageinrichtung in Form eines einzigen Anschlagarmes derart zur Anwendung kommt, daß er kurz vor Vollendung der zweiten Umdrehung der Seilscheibe mit einem ortsfesten Gehäuseanschlag in Eingriff kommt, wodurch die weitere Drehbewegung der Seilscheibe begrenzt wird.In order to always be able to reliably adjust the sports shoe with the longest possible cable path in this known embodiment, a design is proposed which allows approximately two revolutions of the pulley, a stop device in the form of a single stop arm being used such that it is shortly before completion the second turn of the pulley comes into engagement with a stationary housing stop, whereby the further rotational movement of the pulley is limited.

In der Paxis hat es sich in manchen Anwendungsfällen nun als wünschenswert erwiesen, die wirksame Länge der Zugseilanordnung noch etwas zu vergrößern.In practice, it has now proven desirable in some applications to increase the effective length of the traction cable arrangement somewhat.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Drehverschluß der im Oberbegriff des Anspruches 1 unter Beibehaltung der Vorteile der zuvor beschriebenen bekannten Ausführung in der Weise weiterzubilden, daß bei relativ einfacher konstruktiver Gestaltung eine über zwei Umdrehungen hinausgehende Drehbewegung der Seilscheibe ermöglicht ist.The invention is therefore based on the object of developing a rotary closure in the preamble of claim 1 while maintaining the advantages of the known embodiment described above in such a way that with a relatively simple structural design, a rotary movement of the pulley beyond two turns is made possible.

Diese Aufgabe wird erfindungsgemäß durch die Kombination der im Kennzeichen des Anspruches 1 angegebenenen Merkmale gelöst.This object is achieved by the combination of the features specified in the characterizing part of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Bei diesem erfindungsgemäßen Drehverschluß wird die Anschlageinrichtung im wesentlichen durch zwei koaxial zueinander um die zentrale Gehäuseachse drehbar gelagerte, übereinander angeordnete flache Anschlagarme gebildet. Hiervon liegt der obere erste Anschlagarm unmittelbar unterhalb der Seilscheibe, deren Mitnahmevorsprung so ausgebildet und angeordnet ist, daß er nach der ersten Umdrehung der Seilscheibe sowie bei Fortsetzung dieser Drehbewegung nur mit dem ersten Anschlagarm in Mitnahmeeingriff kommt und die Seilscheibe zusammen mit diesem ersten Anschlagarm dann eine zweite Umdrehung ausfuhren kann. Der untere zweite Anschlagarm steht mit dem ersten Anschlagarm über einen Mitnahmenocken derart in Mitnahmeverbindung, daß dieser zweite Anschlagarm erst nach einer zweiten Umdrehung der Seilscheibe sowie bei einer weiteren Fortsetzung dieser Drehbewegung wirksam wird. Hierbei ist aber der ortsfeste Gehäuseanschlag im Bewegungsweg des zweiten Anschlagarmes an einer Stelle angeordnet, die kurz vor der Vollendung einer ganzen Umdrehung dieses zweiten Anschlagarmes liegt. Somit kann durch diese erfindungsgemäße Ausbildung und Zusammenordnung die Seilscheibe insgesamt maximal annähernd drei Umdrehungen, beispielsweise etwa gut 2 3/4 Umdrehungen, ausführen, bevor eine weitere Drehbewegung durch den ortsfesten Gehäuseanschlag verhindert bzw. begrenzt wird (letzteres geschieht, um eine Beschädigung eines Zugseiles durch ein Überdehnen auszuschließen).In this rotary lock according to the invention, the stop device is essentially formed by two flat stop arms which are mounted coaxially with respect to one another about the central housing axis and are arranged one above the other. Of this, the upper first stop arm is located directly below the sheave, the driving projection of which is designed and arranged such that after the first rotation of the sheave and when this rotational movement continues, it only comes into engagement with the first stop arm and the sheave together with this first stop arm then one can make a second turn. The lower second stop arm is in driving connection with the first stop arm via a driving cam in such a way that this second stop arm only becomes effective after a second rotation of the rope sheave and upon a further continuation of this rotary movement. Here, however, the stationary housing stop is arranged in the path of movement of the second stop arm at a point which is shortly before the completion of a complete revolution of this second stop arm. Thus, by means of this design and arrangement according to the invention, the rope sheave can carry out a maximum of approximately three revolutions, for example approximately 2 3/4 revolutions, before a further rotary movement is prevented or limited by the stationary housing stop (the latter occurs in order to damage a pull rope by to rule out overstretching).

Die Erfindung sei nachfolgend anhand der Zeichnung näher erläutert. In dieser zeigen

Fig.1
eine Vertikalschnittansicht (Schnittlinie I-I in Fig. 2) des unteren Teiles des erfindungsgemäßen Drehverschlusses;
Fig.2
eine Horizontalschnittansicht (von unten her) etwa entlang der Schnittlinie II-II in Fig.1;
Fig.3 bis 5
ähnliche Horizontalschnittansichten wie Fig.2, jedoch bei verschiedenen Drehstellungen von Seilrolle und Anschlagarmen;
Fig.6
eine Horizontalschnittansicht ähnlich Fig.2, jedoch bei Anordnung nur eines Zugseilendes an der Seilscheibe.
The invention is explained in more detail below with reference to the drawing. In this show
Fig. 1
a vertical sectional view (section line II in Fig. 2) of the lower part of the twist lock according to the invention;
Fig. 2
a horizontal sectional view (from below) approximately along the section line II-II in Figure 1;
Fig. 3 to 5
Similar horizontal sectional views as Figure 2, but at different rotational positions of the pulley and stop arms;
Fig. 6
a horizontal sectional view similar to Figure 2, but with the arrangement of only one end of the pull rope on the pulley.

Der erfindungsgemäße Drehverschluß kann auf dem Schaft jedes geeigneten Sportschuhes angebracht bzw. befestigt werden, so daß seine Zugseilanordnung in günstiger Weise mit Schließlappen oder anderen zusammenzuziehenden Teilen des Sportschuhes verbunden werden kann, um dadurch den Schuh an den Fuß eines Benutzers genau anpassen zu können.The twist lock according to the invention can be attached or fastened on the shaft of any suitable sports shoe, so that its traction cable arrangement can be connected in a favorable manner to locking flaps or other parts of the sports shoe which can be contracted, in order thereby to be able to adapt the shoe precisely to the foot of a user.

Dieser erfindungsgemäße Drehverschluß kann bis auf den unteren Teil, der eine Seilscheibe sowie eine damit zusammenwirkende Anschlageinreichung enthält, gleichartig ausgeführt sein, wie bei der eingangs beschriebenen EP-A-393 380, so daß in der Zeichnung nur der zur Erläuterung der vorliegenden Erfindung maßgebliche untere Teil dieses Drehverschlusses veranschaulicht ist, während der obere Teil mit Klinkeneinrichtung, Drehbetätigungseinrichtung, Deckel usw. von gleicher Konstruktion ist wie die zuvor genannte bekannte Ausführung, worauf ausdrücklich verwiesen wird.Except for the lower part, which contains a rope pulley and a stop submission interacting therewith, this rotary closure according to the invention can be designed in the same way as in EP-A-393 380 described at the outset, so that in the drawing only the lower one, which is relevant for explaining the present invention Part of this twist lock is illustrated, while the upper part with pawl device, rotary actuating device, cover, etc. is of the same construction as the aforementioned known embodiment, to which express reference is made.

Zur Erläuterung des allgemeinen Aufbaus dieses Drehverschlusses, insbesondere des unteren Teiles dieses Drehverschlusses sei zunächst auf die Fig.1 und 2 Bezug genommen.To explain the general structure of this twist lock, in particular the lower part of this twist lock first refer to FIGS. 1 and 2.

Der untere Teil des Drehverschlusses weist ein etwa schalenförmiges, im wesentlichen kreisrundes Gehäuse 1 auf, das auf einem nicht näher veranschaulichten Sportschuh in geeigneter Weise auf dessen Schaft befestigt werden kann, beispielsweise mit Hilfe von seitlichen Befestigungslappen 2. In diesem Gehäuse 1 ist eine um eine zentrale Gehäuseachse 1a drehbetätigbare Seilscheibe 3 drehbar gelagert, auf der eine Zugseilanordnung 4 - je nach Drehbewegung - aufgewickelt oder abgewickelt werden kann, um dadurch die wirksame Länge der Seilzuganorndung 4 in gewünschter Weise verändern zu können. Im Beispiel gemäß Fig.2 sind an der Seilscheibe 3 zwei Zugseilenden 4a, 4b diametral gegenüberliegend befestigt, die zu einem einzigen Zugseil oder auch zu zwei Zugseilen gehören können.The lower part of the twist lock has an approximately shell-shaped, essentially circular housing 1, which can be fastened in a suitable manner to a sports shoe, not shown, on its shaft, for example with the aid of lateral fastening tabs 2. In this housing 1 there is one central housing axis 1 a rotatably operable rope pulley 3 rotatably mounted, on which a pull rope arrangement 4 - depending on the rotary movement - can be wound or unwound, in order thereby to be able to change the effective length of the rope pull arrangement 4 in the desired manner. In the example according to FIG. 2, two traction cable ends 4a, 4b are fastened diametrically opposite on the pulley 3, which ends may belong to a single traction cable or to two traction cables.

Wie Fig.1 erkennen läßt, ist die Seilscheibe 3 im Gehäuse 1 so aufgenommen, daß der Außenumfangsrand ihres oberen Scheibenteiles 3a in einer Art Ringnut 1b am oberen Gehäuserand geführt ist. Die Seilscheibe 3 weist dabei eine zentrale Bohrung 3b auf, in die eine sich nach unten erstreckende, drehzapfenartige axiale Verlängerung eines nicht näher veranschaulichten Sonnenrades eines zur Drehbetätigungseinrichtung gehörenden Planetengetriebes hineinreicht, wobei diese drehzapfenartige Verlängerung einen zentralen Lagerzapfen für die Seilscheibe 3 bildet.As can be seen in FIG. 1, the rope sheave 3 is accommodated in the housing 1 in such a way that the outer peripheral edge of its upper sheave part 3a is guided in a kind of annular groove 1b on the upper edge of the housing. The pulley 3 has a central bore 3b into which a downwardly extending, trunnion-like axial extension of a sun gear (not shown in more detail) of a planetary gear belonging to the rotary actuation device extends, this trunnion-like extension forming a central bearing journal for the pulley 3.

Koaxial sowie unterhalb der Seilscheibe 3 ist im Gehäuse 1 eine Anschlageinrichtung drehbar gelagert, die im wesentlichen durch zwei koaxial zueinander um die zentrale Gehäuseachse 1a drehbar gelagerte, übereinander angeordnete flache Anschlagarme, nämlich einen oberen ersten Anschlagarm 5 und einen unteren zweiten Anschlagarm 6 gebildet wird.Coaxial and below the pulley 3, a stop device is rotatably mounted in the housing 1, which is essentially coaxial with one another by two central housing axis 1a rotatably mounted, superimposed flat stop arms, namely an upper first stop arm 5 and a lower second stop arm 6 is formed.

Der obere erste Anschlagarm 5 besitzt einen zentralen Lagerabschnitt 5a und einen sich radial nach außen daran anschließenden, kreissektorförmigen äußeren Anschlagabschnitt 5b, und in etwa gleichartiger Weise besitzt auch der untere zweite Anschlagarm 6 einen zentralen Lagerabschnitt 6a sowie einen sich daran radial nach außen anschließenden, kreissektorförmigen äußeren Anschlagabschnitt 6b. An der Oberseite des unteren zweiten Anschlagarmes 6 sowie an dessen Umfangsrand ist ein nach oben ragender Mitnahmenocken 7 fest angebracht, dessen Höhe maximal so groß ist wie die Materialdicke des oberen Anschlagarmes 5, was in Fig.1 (linke Hälfte) zu erkennen ist. An der Unterseite der Seilscheibe 3 ist demgegenüber ein Mitnahmevorsprung 8 fest angebracht, der sich im Bereich radial innerhalb des Mitnahmenockens 7 befindet und maximal so hoch ist wie die Materialdicke des ersten Anschlagarmes 5.The upper first stop arm 5 has a central bearing section 5a and a circular sector-shaped outer stop section 5b adjoining it radially outward, and in approximately the same way the lower second stop arm 6 also has a central bearing section 6a and a circular sector-shaped adjoining it radially outward outer stop section 6b. On the upper side of the lower second stop arm 6 and on its peripheral edge, an upwardly projecting driving cam 7 is firmly attached, the height of which is at most as large as the material thickness of the upper stop arm 5, which can be seen in FIG. 1 (left half). In contrast, on the underside of the rope sheave 3, a driving projection 8 is fixedly attached, which is located radially within the driving cam 7 and is at most as high as the material thickness of the first stop arm 5.

Innerhalb des Gehäuses 1 ist ferner am Gehäuseboden 1c sowie im Umfangsrandbereich ein ortsfester Anschlag 9 vorgesehen, der zur Begrenzung der Drehbewegung des unteren zweiten Anschlagarmes 6 und somit - wie noch näher erläutert wird - auch der Seilscheibe 3 in beiden Drehrichtungen dient. Hierbei erstreckt sich dieser Gehäuseanschlag 9 vom Gehäuseboden 1c um ein Maß nach oben, das höchstens so groß ist wie die Materialdicke des unteren zweiten Anschlagarmes 6.Within the housing 1, a stationary stop 9 is also provided on the housing base 1c and in the peripheral edge region, which serves to limit the rotational movement of the lower second stop arm 6 and thus - as will be explained in more detail - also the pulley 3 in both directions of rotation. Here, this housing stop 9 extends from the housing base 1c upwards by an amount that is at most as large as the material thickness of the lower second stop arm 6.

Bei den zuvor erläuterten Abmessungen und Zusammenordnungen der beiden Anschlagarme 5, 6 und der Seilscheibe 3 im Gehäuse 1 ist gewährleistet, daß der ortsfeste Gehäuseanschlag 9 nur die Drehbewegung des unteren Anschlagarmes 6 begrenzt, aber nicht die Drehbewegung des darüberliegenden ersten Anschlagarmes 5 und der Seilscheibe 3. Die Drehbewegung des oberen ersten Anschlagarmes 5 wird dagegen vom nach oben ragenden Mitnahmenocken 7 des unteren zweiten Anschlagarmes 6 begrenzt, wobei dieser Mitnahmenocken 7 die Drehbewegung der Seilscheibe 3 nicht behindert.Given the dimensions and arrangements of the two stop arms 5, 6 and the pulley 3 in the housing 1 explained above, it is ensured that the fixed housing stop 9 only limits the rotational movement of the lower stop arm 6, but not the rotational movement of the overlying first stop arm 5 and the pulley 3 The rotational movement of the upper first stop arm 5, on the other hand, is limited by the upwardly projecting driving cam 7 of the lower second stop arm 6, this driving cam 7 not obstructing the rotational movement of the rope pulley 3.

Was die Lagerung der einzelnen drehbeweglichen Teile anbelangt, so kann jede dafür geeignete Ausbildung vorgesehen werden, solange gewährleistet ist, daß die Seilscheibe 3 und die beiden Anschlagarme 5, 6 in der jeweils erforderlichen Weise unabhängig voneinander um die zentrale Gehäuseachse 1a drehbeweglich sind. Bei dem in Fig.1 veranschaulichten bevorzugten Ausführungsbeispiel weist der zentrale Lagerabschnitt 6a des zweiten Anschlagarmes 6 einen sich axial nach unten erstreckenden, kreisförmigen Lageransatz 10 auf, der in einer zentralen Lagerbohrung 11 im Gehäuseboden 1c gleitend gelagert und geführt ist. Dabei stützt sich wenigstens der übrige Teil des zentralen Lagerabschnittes 6a dieses zweiten Anschlagarmes 6, vorzugsweise aber auch zumindest der größte Teil des äußeren Anschlagabschnittes 6b auf dem Gehäuseboden 1c gleitend ab.As far as the storage of the individual rotatable parts is concerned, any suitable training can be provided as long as it is ensured that the rope pulley 3 and the two stop arms 5, 6 can be rotated independently of one another about the central housing axis 1a in the respectively required manner. In the preferred exemplary embodiment illustrated in FIG. 1, the central bearing section 6a of the second stop arm 6 has an axially downwardly extending, circular bearing projection 10, which is mounted and guided in a sliding manner in a central bearing bore 11 in the housing base 1c. At least the remaining part of the central bearing section 6a of this second stop arm 6, but preferably also at least the largest part of the outer stop section 6b, is slidably supported on the housing base 1c.

Der zentrale Lagerabschnitt 5a des oberen ersten Anschlagarmes 5 ist dagegen am bzw. auf dem zentralen Lagerabschnitt 6a des zweiten Anschlagarmes 6 drehbeweglich gelagert und gefuhrt. Zu diesem Zweck weist der zentrale Lagerabschnitt 6a des zweiten Anschlagarmes 6 ferner einen sich koaxial zum Lageransatz 10 nach oben erstreckenden Lagerzapfen 12 auf, der passend in eine zentrale Lagerbohrung 5a' im Lagerabschnitt 5a des oberen ersten Anschlagarmes 5 hineinreicht, so daß für diesen Lagerabschnitt 5a und somit auch für den ganzen oberen ersten Anschlagarm 5 auf äußerst einfache Weise eine zuverlässige Drehlagerung und -führung geschaffen ist.The central bearing section 5a of the upper first stop arm 5, on the other hand, is rotatably supported and guided on or on the central bearing section 6a of the second stop arm 6. For this purpose the Central bearing section 6a of the second stop arm 6 also has a bearing pin 12 which extends coaxially to the bearing extension 10 and which fits into a central bearing bore 5a 'in the bearing section 5a of the upper first stop arm 5, so that for this bearing section 5a and thus also for the whole upper first stop arm 5 in a very simple manner, a reliable pivot bearing and guidance is created.

Zum Gesamtaufbau des Drehverschlusses sei in diesem Zusammenhang noch gesagt, daß er wenigstens teilweise aus einem geeigneten, vorzugsweise gießbaren und bearbeitbaren Kunststoffmaterial hergestellt sein kann. Dabei ist es ferner im Hinblick auf die relativ einfache und kostengünstige Herstellung besonders vorteilhaft, wenn wenigstens das Gehäuse 1, die Seilscheibe 3 und die Anschlagarme 5, 6 aus solchem Kunststoffmaterial hergestellt sind.Regarding the overall structure of the twist lock, it should be said in this connection that it can be made at least partially from a suitable, preferably castable and machinable plastic material. It is furthermore particularly advantageous with regard to the relatively simple and inexpensive production if at least the housing 1, the rope pulley 3 and the stop arms 5, 6 are made of such plastic material.

Anhand der Fig.2 bis 5 nach sei folgend ein Aufwickelvorgang der Zugseilanordnung 4 bzw. der Zugseilenden 4a und 4b auf der Seilscheibe 3 erläutert, wobei nochmals betont sei, daß diese Fig.2 bis 5 Horizontalschnittansichten entsprechend der Schnittlinie II-II in Fig.1 von unten her zeigen.A winding process of the pull cable arrangement 4 or the pull cable ends 4a and 4b on the sheave 3 is explained below with reference to FIGS. 2 to 5, it being emphasized again that these FIGS. 2 to 5 horizontal sectional views corresponding to the section line II-II in FIG. 1 show from below.

In Fig.2 ist die Nullstellung veranschaulicht, in der die Zugseilanordnung 4 vollkommen von der Seilscheibe abgewickelt ist. Hierbei liegt der äußere Anschlagabschnitt 6b an der einen Seite des ortsfesten Gehäuseanschlags 9 an, während auf der einen Seite des Mitnahmenockens 7 der äußere Anschlagabschnitt 5b des oberen ersten Anschlagarmes 5 anliegt, an dessen einer Seite wiederum der Mitnahmevorsprung 8 der Seilscheibe anliegt. Wenn nun die Zugseilanordnung 4 bzw. dessen Zugseilenden 4a und 4b auf die Seilscheibe 3 aufgewickelt werden sollen, dann wird die Seilscheibe 3 über die eingangs erläuterte Drehbetätigungseinrichtung in Richtung des Pfeiles 13 gedreht.The zero position is illustrated in FIG. 2, in which the pull rope arrangement 4 is completely unwound from the sheave. Here, the outer stop section 6b rests on one side of the stationary housing stop 9, while on one side of the driving cam 7 the outer stop section 5b of the upper first stop arm 5 rests on one side again the driving projection 8 of the sheave is present. If the traction cable arrangement 4 or its traction cable ends 4a and 4b are now to be wound onto the pulley 3, then the pulley 3 is rotated in the direction of arrow 13 by means of the rotary actuating device explained at the beginning.

Nach etwa einer Umdrehung der Seilrolle 3 erreicht diese die in Fig.3 veranschaulichte Stellung, in der der Mitnahmevorsprung 8 der Seilscheibe 3 - gegenüber der Stellung in Fig.2 - auf der entgegengesetzten Seite des äußeren Anschlagabschnittes 5b des oberen ersten Anschlagarmes 5 zur Anlage kommt. Bei einer Fortsetzung dieser Drehbewegung der Seilscheibe 3 in Richtung des Pfeiles 13 wird nur der erste Anschlagarm 5 mitgenommen, so daß nach etwa einer zweiten Umdrehung der Seilscheibe 3 die in Fig.4 veranschaulichte Stellung erreicht wird. Erst nach dieser etwa zweiten Umdrehung der Seilscheibe 3 kommt die dem Mitnahmevorsprung 8 gegenüberliegende Seite des äußeren Anschlagabschnittes 5b des ersten Anschlagarmes 5 mit dem Mitnahmenocken 7 in Mitnahmeeingriff (Mitnahmeverbindung). Wird nun diese Drehbewegung der Seilscheibe 3 in Richtung des Pfeiles 13 fortgesetzt, dann nimmt die Seilscheibe 3 über ihren Mitnahmevorsprung 8 somit nicht nur den oberen ersten Anschlagarm 5, sondern - über die zuvor geschilderte Mitnahmeverbindung - auch den unteren zweiten Anschlagarm 6 mit. Kurz vor Vollendung dieser dritten Drehbewegung der Seilscheibe 3 und somit kurz vor einer ganzen Umdrehung dieses zweiten Anschlagarmes 6 gelangt letzterer - im Vergleich zur Nullstellung in Fig.2 - auf der entgegengesetzten Seite des ortsfesten Gehäuseanschlages 9 zur Anlage, wie es in Fig.5 veranschaulicht ist, wodurch eine weitere Drehbewegung auch der Seilscheibe 3 in Richtung des Pfeiles 13 verhindert wird. Die Seilscheibe 3 kann somit nahezu drei Umdrehungen ausführen, um die Seilenden 4a und 4b der Zugseilanordnung 4 aufzuwickeln, so daß sich im Bedarfsfalle ein besonders großer Spielraum zum Öffnen und Schließen eines zugehörigen Sportschuhes ergibt.After approximately one revolution of the rope pulley 3, it reaches the position illustrated in FIG. 3, in which the driving projection 8 of the rope pulley 3 — compared to the position in FIG. 2 — comes to rest on the opposite side of the outer stop section 5b of the upper first stop arm 5 . If this rotary movement of the rope sheave 3 continues in the direction of the arrow 13, only the first stop arm 5 is taken along, so that after about a second rotation of the rope sheave 3 the position shown in FIG. 4 is reached. Only after this approximately second rotation of the sheave 3 does the side of the outer stop section 5b of the first stop arm 5 opposite the driving projection 8 come into driving engagement with the driving cam 7 (driving connection). If this rotary movement of the rope sheave 3 is continued in the direction of the arrow 13, the rope sheave 3 thus not only takes the upper first stop arm 5, but also the lower second stop arm 6 via the driver connection 8 described above. Shortly before the completion of this third rotary movement of the rope pulley 3 and thus shortly before a complete revolution of this second stop arm 6, the latter comes to rest on the opposite side of the stationary housing stop 9, as compared to the zero position in FIG. 2, as illustrated in FIG is, causing a further rotary motion too the pulley 3 is prevented in the direction of arrow 13. The pulley 3 can thus make almost three turns to wind the rope ends 4a and 4b of the traction rope arrangement 4, so that, if necessary, there is a particularly large scope for opening and closing an associated sports shoe.

Bei der zuvor anhand der Fig.2 bis 5 geschilderten Funktion des Aufwickelns der Zugseilanordnung 4 ist es leicht vorstellbar, wie die Zugseilanordnung 4 und damit ihre Seilenden 4a und 4b bei umgekehrter Drehrichtung (entgegengesetzt Pfeil 13) von der Seilscheibe 3 abgewickelt werden können.In the previously described function of FIGS. 2 to 5 of winding the traction cable arrangement 4, it is easy to imagine how the traction cable arrangement 4 and thus its cable ends 4a and 4b can be unwound from the pulley 3 in the opposite direction of rotation (opposite arrow 13).

Anhand Fig.6 sei noch kurz darauf hingewiesen, daß bei ansonsten gleicher Konstruktion des Drehverschlusses auch die Möglichkeit besteht, im Bedarfsfalle die Zugseilanordnung durch ein einziges Zugseil 14 zu bilden, dessen eines Seilende 14a auf der Seilrolle 3 in gleicher Weise aufgewickelt oder abgewickelt werden kann, wie es zuvor erläutert worden ist. In dieser Fig.6 sind daher nur einige Elemente des Drehverschluß-Unterteiles mit Bezugszeichen versehen, die denen des weiter oben beschriebenen ersten Ausführungsbeispieles entsprechen, so daß dazu keine näheren Erläuterungen mehr notwendig sind.On the basis of FIG. 6, it should be briefly pointed out that, with the same construction of the twist lock, there is also the possibility, if necessary, of forming the traction cable arrangement by means of a single traction cable 14, one end 14 a of which can be wound or unwound on the pulley 3 in the same way as previously explained. In this FIG. 6, therefore, only a few elements of the bottom part of the twist lock are provided with reference numerals which correspond to those of the first exemplary embodiment described above, so that no further explanations are necessary for this.

Claims (10)

  1. Rotary closure for a sports shoe, comprising
    a) a traction cable arrangement (4, 14) which can be connected to parts of the shoe which are to be drawn together,
    b) a housing (1) which is to be fastened on the shoe and in which a cable pulley (3) is rotatably mounted about a central housing axis (1a) for winding the traction cable arrangement on and off, the said cable pulley having an engaging projection (8) on its underside,
    c) a stop arrangement (5, 6) which is rotatably mounted in the housing (1) coaxially with and below the cable pulley (3) and which, after a first turn of the cable pulley, is entrained by the engaging projection (8) of the latter when the rotary movement is continued,
    d) a stationary stop (9) provided in the housing to limit the rotary movement of the cable pulley (3) and the stop arrangement (5, 6) in both directions of rotation,
    characterised by the combination of the following features:
    e) the stop arrangement (5, 6) has two flat stop arms (5, 6) which are arranged one above the other and rotatably mounted coaxially with one another about the central housing axis (1a);
    f) the upper first stop arm (5) lies immediately below the cable pulley (3), the engaging projection (8) of which is constructed in such a way that after the first turn of the cable pulley and during continuation of this rotary movement it comes into engagement with the first stop arm (5);
    g) the lower second stop arm (6) is in engaged connection with the first stop arm (5) by means of an engaging cam (7) which only takes effect after a second turn of the cable pulley, the stationary housing stop (9) being arranged in the path of movement of the second stop arm (6) at a point which lies just before the completion of a complete turn of this second stop arm.
  2. Rotary closure as claimed in Claim 1, characterised in that both stop arms (5, 6) have a central bearing portion (5a, 6a) as well as an outer stop portion (5b, 6b) in the shape of a circular sector, wherein the upwardly-projecting engaging cam (7), the height of which is at most as great as the thickness of the upper first stop arm (5), is mounted on the upper face of the lower second stop arm (6) as well as on the peripheral edge thereof, and wherein the engaging projection (8) is mounted in the region radially within the engaging cam (7) on the underside of the cable pulley (3) and is at most as high as the thickness of the first stop arm (5), the stationary housing stop (9) extending upwards from the housing base (1c) by a dimension which is at most as great as the thickness of the lower second stop arm (6).
  3. Rotary closure as claimed in Claim 2, characterised in that the central bearing portion (6a) of the second stop arm (6) has a circular bearing lug (10) which extends downwards and is slidably mounted and guided in a central bearing bore (11) in the housing base (1c).
  4. Rotary closure as claimed in Claim 3, characterised in that the second stop arm (6) is slidably supported at least in the region of its central bearing portion (6a) on the housing base (1c).
  5. Rotary closure as claimed in Claim 3, characterised in that the central bearing portion (5a) of the upper first stop arm (5) is rotatably mounted and guided on the central bearing portion (6a) of the lower second stop arm (6).
  6. Rotary closure as claimed in Claim 5, characterised in that the central bearing portion (6a) of the second stop arm (6) has a trunnion (12) extending upwards coaxially with the bearing lug (10) for rotary mounting and guiding of the central bearing portion (5a) of the upper first stop arm (5).
  7. Rotary closure as claimed in Claim 1, characterised by it production, at least partially, from plastics material.
  8. Rotary closure as claimed in Claim 7, characterised in that at least the housing (1), the cable pulley (3) and the stop arms (5, 6) are produced from plastics material.
  9. Rotary closure as claimed in Claim 1, characterised in that two traction cable ends (4a, 4b) are fastened on the cable pulley (3).
  10. Rotary closure as claimed in Claim 1, characterised in that one traction cable end (14a) is fastened on the cable pulley (3).
EP93114690A 1992-09-30 1993-09-13 Rotary fastening device for a sports shoe Expired - Lifetime EP0590400B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9213187U DE9213187U1 (en) 1992-09-30 1992-09-30
DE9213187U 1992-09-30

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EP0590400A1 EP0590400A1 (en) 1994-04-06
EP0590400B1 true EP0590400B1 (en) 1996-03-27

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EP93114690A Expired - Lifetime EP0590400B1 (en) 1992-09-30 1993-09-13 Rotary fastening device for a sports shoe

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US (1) US5425161A (en)
EP (1) EP0590400B1 (en)
JP (1) JPH06178704A (en)
AT (1) ATE135893T1 (en)
DE (2) DE9213187U1 (en)

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Also Published As

Publication number Publication date
JPH06178704A (en) 1994-06-28
ATE135893T1 (en) 1996-04-15
EP0590400A1 (en) 1994-04-06
DE9213187U1 (en) 1992-11-26
US5425161A (en) 1995-06-20
DE59302037D1 (en) 1996-05-02

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