EP4041018B1 - Rotary closure with tensioning element - Google Patents
Rotary closure with tensioning element Download PDFInfo
- Publication number
- EP4041018B1 EP4041018B1 EP20789892.5A EP20789892A EP4041018B1 EP 4041018 B1 EP4041018 B1 EP 4041018B1 EP 20789892 A EP20789892 A EP 20789892A EP 4041018 B1 EP4041018 B1 EP 4041018B1
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- EP
- European Patent Office
- Prior art keywords
- drive pinion
- rotary
- gears
- rotary closure
- closure
- 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.)
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- 230000008859 change Effects 0.000 claims description 3
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- 238000005859 coupling reaction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Images
Classifications
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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
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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
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41F—GARMENT FASTENINGS; SUSPENDERS
- A41F1/00—Fastening devices specially adapted for garments
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/10—Arrangement of fasteners
Definitions
- the present invention relates to a rotary fastener for a sporting item, a piece of luggage or a shoe, in particular a sports shoe, in which fastener a tensioning element can be tensioned via a tensioning roller within a housing and can be released again if necessary to open the fastener.
- a rotary fastener is used, for example, for sports shoes in order to avoid a classic lacing of a shoelace and to close the shoe opening by turning it alone.
- Such screw caps are usually realized with tensioning elements made of plastic in the form of thin cables, which slide in eyelets provided for this purpose or in the upper material of the shoe.
- such rotary fasteners can also be used in other areas, such as bags, luggage or articles of clothing.
- Such rotary fasteners are not limited to just the shoe area in their application.
- a rotary fastener for a sports shoe in which a tensioning roller mounted in a housing is provided for lacing the shoe by means of a tensioning element, which is wound up therein. It is actuated by means of a rotary knob, with the closure having a pawl with locking teeth on the inside, for releasing the engagement of the toothing from the outside, a locking lever must be actuated by turning it to the left.
- the object of the present invention to provide a screw cap for such applications with a tensioning element, which is easy to operate and very compact with as few components as possible.
- the screw cap according to the invention should also enable secure closing and opening in the long term.
- a rotary fastener for a sports item, in particular a sports shoe, which comprises a housing part with an axis on which a rotary knob is attached to rotate a tensioning roller for a tensioning element, in particular a cable, for the fastener for winding or for to actuate the release of the tensioning element, as well as a first gear wheel with internal teeth connected to the rotary knob and a rotating second gear wheel with internal teeth connected to the tension roller, the rotary fastener being characterized in that a drive pinion that can be coupled thereto is provided between the gear wheels and that the drive pinion has a regarding the Drive axle has radially displaceable storage for selectively coupling with and detaching from the internal teeth of the gears.
- a drive pinion that is to say a gear wheel which is significantly smaller than the gear wheels, which can be coupled to the gear wheels with internal teeth.
- the drive pinion is built into the rotary cap with a specific bearing, namely a bearing that allows coupling and decoupling (release) with the internal teeth of the gears.
- the drive pinion is thus not installed in a stationary manner in the housing part of the rotating closure, but can be deliberately shifted or relocated in order to effect the coupling and decoupling of the drive gearing depending on the operating situation.
- a displaceable mounting of the drive pinion can have any form of a displaceable mounting on such axes of rotation for pinions.
- the bearing only has to be designed to be displaceable or changeable in such a way that, in the event of a displacement, the coupling and detachment with the gear wheels is made possible.
- the drive pinion thus serves to connect the internal teeth of the stationary first gear wheel to the internal teeth of the second rotating gear wheel, which in turn actuates the tensioning roller of the tensioning element.
- the tensioning element can be tensioned with great force, and simply by turning in a different direction, for example, the connection between the pinion and the internal teeth can be released immediately, i.e. the tensioning element can be released and thus the closure in a very simple manner way then be reopened.
- the twist lock according to the invention is very compact due to the low overall height and width and includes a comparatively small number of parts and components required. This greatly reduces the susceptibility to interference.
- twist lock according to the invention can also be used in situations in which a cumbersome form of operation is not very possible. Last but not least, the production costs are greatly reduced compared to previously known twist-lock fasteners of this type.
- the bearing of the drive pinion is designed to be radially displaceable with a change in the direction of rotation on the rotary knob.
- a direction of rotation for example clockwise, is used to close and tighten the closure by winding up the tightening element.
- a reverse rotation for example, in the opposite direction to the clockwise direction thus enables the closure to be easily released.
- the drive pinion is simply moved radially inwards in its bearing by changing the direction of rotation on the rotary knob.
- no additional actuating elements are required to open the closure.
- the operation is also very intuitive for the user due to such a reversal of the direction of rotation.
- the bearing of the drive pinion has an arcuate part-circular groove or an arcuate slot, which changes in distance with respect to the axis over its course.
- the mounting of the drive pinion is also displaceable with respect to the internal toothing, for example by a bearing pin of the drive pinion being selectively displaced in the pitch circular groove or the slot and, for example, shifted inwards towards the axis of the rotary fastener.
- the part-circle groove can be composed of a first section, which is concentric to the axis of the rotary fastener, and a second section, which is no longer concentric thereto but runs inward. This achieves a safety function, since the toothing does not "open" immediately with every slight turn of the rotary knob.
- the drive pinion is mounted in an intermediate housing inside the housing part of the rotary fastener.
- an intermediate housing can be implemented, for example, in the form of a U-shaped sheet metal part with a very thin design.
- the variation of the distance of the bearing from the drive pinion to the toothing of the gear wheels can easily be realized within the housing.
- the storage elements are not complex components that require complex manufacturing steps and assembly work.
- the number of teeth of the gears of the two internal gears varies slightly with the same core diameter, at least by one tooth.
- the tooth difference can also be two, three or four teeth.
- the number of teeth and also the number of toothings can vary, as long as the two toothings of the gearwheels ensure essentially the same coupling with the drive pinion.
- the drive pinion has a comparatively large reduction ratio to the gear wheels in a range of approximately 1:3 and the drive pinion rotates on a circular path around the fixed gear wheel.
- a very large reduction ratio a large reduction can be realized on a very small size, which is required for effective clamping of the clamping element.
- Greater forces can also be applied to the tensioning element in comparison to a lower reduction or gear ratio. For example, if the first gear on the housing has twenty-seven teeth, the second gear on the tensioning wheel has twenty-four teeth and the pinion has nine teeth, a total reduction ratio of 1:8 can be realized.
- the gear wheels are essentially completely enclosed from the outside by the housing part of the rotary closure.
- the gears are therefore essentially located inside a closed housing and are thus protected from external interference and damage.
- the mounting of the drive pinion runs eccentrically to an axis center point of the drive axis of the rotary fastener.
- the drive pinion can also be disengaged from the toothing of the internal toothing and engaged there again in a different way than is the case with an arcuate slot or groove is.
- the bearing is implemented simply eccentrically in relation to the center point of the drive axle and can, for example, also have a rectilinear shape or a configuration other than that previously described.
- FIG. 1a to 1d an exemplary embodiment of a rotary fastener 10 according to the invention is shown in various side/top views and sectional views.
- the screw cap comprises a housing part 1 and a rotary knob 2 fastened to an axis 3, which is formed with a kind of outer corrugation for better gripping.
- the rotary knob 2 is attached to the housing part 1 in such a way that it can be used to actuate a first gearwheel 4 with internal teeth for starting a tensioning roller 6 inside the rotary fastener 10 .
- the axis 3 itself can be fixed or even rotating.
- a tensioning element not shown in the figures, such as a plastic wire or plastic cable, can be tensioned over the tensioning roller 6 by being wound around the tensioning roller 6 .
- the tensioning roller 6 can also be unlocked again in order to release the closure 10 , this being done according to the invention with a special drive pinion 7 .
- the tensioning roller 6 is firmly connected to a second gear wheel 5 with internal teeth.
- the idler pulley 6 is formed in a quasi-integral manner with the second rotating gear 5, but it may also be formed separately from and connected to it.
- the tensioning roller 6 is rotated by the drive pinion 7, which meshes with the first gear wheel 4 and the second gear wheel 5, and the tensioning element is thus wound up with a comparatively large transmission ratio.
- the drive pinion has a much smaller Number of teeth in comparison to the number of teeth of the internal teeth of the gears 4, 5 (cf. 1c ).
- the drive pinion 7 is mounted inside the internal teeth of the gears 4, 5 via a specific type of bearing of the bearing journals of the drive pinion 7.
- the drive pinion 7 according to the invention is namely not fixed at one point in the rotary fastener 10, but is movable and displaceable by means of an arcuate groove 8, in which the bearing journals of the drive pinion 7 are inserted.
- the arcuate groove 8 or the slot of the recess is provided in an intermediate housing 9 according to this exemplary embodiment, which is built into the interior of the housing part 1 between the gear wheels 4, 5 and is coupled to the rotary knob 2 in a rotationally fixed manner.
- the arcuate groove 8 is not concentric with a center point of the axis of rotation 3, but approaches the axis of rotation 3 over its course, at least in a partial section.
- the groove 8 is arranged more or less eccentrically in relation to the rotary fastener 10 and the axis of rotation 3, so that when the drive pinion 7 moves within the groove 8, the teeth of the drive pinion 7 disengage from the teeth of the internal teeth of the gear wheels 4, 5 in a targeted manner let loose.
- a first section of the groove 8 is concentric with the axis 3, for example, in order to prevent the closure 10 from being opened unintentionally when the rotary knob 2 is turned only slightly.
- the 1c shows how too 2 which is the engagement position for closing the closure 10.
- the screw cap 10 can be easily opened again.
- the drive pinion is only automatically shifted radially with respect to the axis 3 . This ensures a very compact and flat design.
- the automatic displaceability of the drive pinion 7 in the groove 8 can also take place differently than shown in this example, as long as the drive pinion 7 can be moved from an engaged position to a disengaged position (cancelled engagement with internal teeth) by changing the direction of rotation on the rotary knob 2.
- the 2 shows a top view of a simplified interior view of the main components of the rotary fastener 10 according to the invention.
- the arrows indicate that by changing the direction of rotation on the Rotary knob 2 changes the rotation of the gear wheel 4 in such a way that the drive pinion 7 moves in the direction of the arrow along the circular groove 8 and is thus brought out of engagement with the internal teeth (closed situation) (open position).
- the number of teeth of the internal gearing of gear wheel 4 and that of gear wheel 5 varies slightly. For example, there is a tooth difference of one between the gear wheels 4, 5, so that when the drive pinion 7 engages, a kind of self-locking of the rotating components results.
- the intermediate housing 9 is inserted completely inside the gear wheels 4, 5 and the housing 1 in the form of a U-shaped sheet metal part with the arcuate groove 8.
- the intermediate housing 9 is firmly coupled to the rotary knob 2 via cams and thus forms a drive part with the pinion 7 .
- the drive pinion 7 has a fairly large reduction ratio in relation to the internal teeth of the gears 4, 5, for example in the range of 1: 3.
- the gears 4, 5, however, have the same pitch circle and the drive pinion 7 rotates on a circular path around the fixed one Gear 4. If the pinion has nine teeth, the first gear twenty-seven teeth and the second gear twenty-four teeth, a total reduction ratio of 1:8 can be realized. However, the number of teeth can vary.
- the housing part 1 is in the 3 shown, which is on the outside slot-like openings for the passage of a tensioning element that is wound on the tensioning roller 6, is used.
- the housing part 1 has a kind of hat-like shape, which completely closes off the components from the outside together with the base plate 11 .
- the first gear 4 with internal teeth is directly integrated in the embodiment. However, it can also be designed separately and connected to the housing part 1 .
- the housing part 1 is in turn coupled to a rotary knob 2 shown above, via which the first gear wheel 4 and the tensioning roller 6 can be actuated via the second gear wheel 5 when the drive pinion 7 engages (cf. above 1c ).
- the tension is released due to the displacement of the drive pinion 7 and the rotary lock 10 is thus opened.
- FIGS. 4a to 4f show the individual components and components of the twist lock 10 of this embodiment in sectional views and side views.
- the Figure 4a shows the assembled state of the twist lock 10 according to the embodiment of the invention.
- Figure 4b shows the rotary knob 2 with the fastening screw 12, in which case it has a contoured, corrugated shape on the outside for better gripping.
- Figure 4c shows the housing part 1 with the first gear 4 with Internal teeth, which comes into engagement with the drive pinion 7.
- Figure 4d shows the drive pinion 7 with the bearing journals provided on both sides, which are inserted into arcuate recesses, slots or grooves 8 provided for this purpose on the intermediate housing 9.
- the intermediate housing 9 is implemented here as a U-shaped sheet metal part and thus has a very low overall height for a compact form of the screw cap. The manufacturing costs are also reduced in this way.
- the Figure 4e shows the rotating, second gear wheel 5 with the internal teeth with a slightly different number of teeth compared to the first gear wheel 4 with the purpose of a kind of self-locking between the components 4, 5 and 7.
- the tension roller is integral with the gear wheel 5 6 formed, which can, however, also be formed as a separate part.
- the clamping element (cable) itself is not shown.
- Figure 1 shows the bottom plate 11 and the drive axle 3 mounted through the bottom plate, around which the components such as the knob 2, the gears 4, 5 and the tension roller 6 rotate for the functioning of the winding of the tension element.
- the screw cap 10 according to the invention with the structure described has the advantage that it has a very compact design with a low height in particular.
- the parts and components are reduced in number and the twist lock 10 is comparatively easy and inexpensive to manufacture.
- No additional controls such as a knob or lever are required to release the tension.
- a very large transmission ratio can also be achieved with a comparatively simple structure, so that a strong clamping effect is also made possible when clamping not very elastic shoe parts or similar parts.
- the twist lock according to the invention works in the manner of a toothed cardanic transmission, such as a cyclo-transmission, and has the special variable storage form of the drive pinion 7, by means of which the engagement and disengagement of the teeth of the drive pinion 7 and the gears 4, 5 is accomplished according to the invention.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Transmission Devices (AREA)
- Glass Compositions (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Description
Die vorliegende Erfindung betrifft einen Drehverschluss für einen Sportartikel, ein Gepäckstück oder einen Schuh, insbesondere einen Sportschuh, bei welchem Verschluss ein Spannelement über eine Spannrolle innerhalb eines Gehäuses gespannt werden und bei Bedarf zum Öffnen des Verschlusses wieder gelöst werden kann. Ein solcher Drehverschluss wird beispielsweise für Sportschuhe eingesetzt, um eine klassische Schnürung eines Schnürsenkels zu vermeiden und eine allein durch Drehen bewirkte Schließung der Schuhöffnung herbeizuführen. Solche Drehverschlüsse werden in der Regel mit aus Kunststoff bestehenden Spannelementen in Form von dünnen Kabeln realisiert, welche in dafür vorgesehenen Ösen oder dem Obermaterial des Schuhs gleiten. Derartige Drehverschlüssen können jedoch auch auf anderen Gebieten, wie zum Beispiel Taschen, Gepäckstücken oder Kleidungsartikeln, Anwendung finden. Derartige Drehverschlüsse sind in ihrer Anwendung nicht auf allein den Schuhbereich beschränkt.The present invention relates to a rotary fastener for a sporting item, a piece of luggage or a shoe, in particular a sports shoe, in which fastener a tensioning element can be tensioned via a tensioning roller within a housing and can be released again if necessary to open the fastener. Such a rotary fastener is used, for example, for sports shoes in order to avoid a classic lacing of a shoelace and to close the shoe opening by turning it alone. Such screw caps are usually realized with tensioning elements made of plastic in the form of thin cables, which slide in eyelets provided for this purpose or in the upper material of the shoe. However, such rotary fasteners can also be used in other areas, such as bags, luggage or articles of clothing. Such rotary fasteners are not limited to just the shoe area in their application.
Im Stand der Technik sind verschiedene solcher Drehverschlüsse mit kabelartigen Spannelementen beschrieben worden. Beispielsweise ist aus
Demgegenüber ist es die Aufgabe der vorliegenden Erfindung, einen Drehverschluss für derartige Anwendungszwecke mit einem Spannelement bereitzustellen, bei welchem eine leichte Bedienbarkeit und sehr kompakte Bauform mit möglichst wenigen erforderlichen Komponenten gegeben ist. Gleichzeitig soll mit dem erfindungsgemäßen Drehverschluss ein sicheres Schließen und Öffnen auch langfristig ermöglicht werden.In contrast, it is the object of the present invention to provide a screw cap for such applications with a tensioning element, which is easy to operate and very compact with as few components as possible. At the same time, the screw cap according to the invention should also enable secure closing and opening in the long term.
Diese Aufgabe wird mit einem Drehverschluss mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.This object is achieved with a screw cap having the features of
Erfindungsgemäß wird ein Drehverschluss nach Anspruch 1 für einen Sportartikel, insbesondere einen Sportschuh, bereitgestellt, welcher einen Gehäuseteil mit einer Achse umfasst, an welcher ein Drehknopf angebracht ist, um eine Spannrolle für ein Spannelement, insbesondere ein Kabel, für den Verschluss zum Aufwickeln oder zum Lösen des Spannelementes zu betätigen, sowie ein mit dem Drehknopf verbundenes erstes Zahnrad mit Innenverzahnung und ein mit der Spannrolle verbundenes drehendes zweites Zahnrad mit Innenverzahnung, wobei der Drehverschluss dadurch gekennzeichnet ist, dass zwischen den Zahnrädern ein damit koppelbares Antriebsritzel vorgesehen ist und dass das Antriebsritzel eine bezüglich der Antriebsachse radial verschiebbare Lagerung zum wahlweisen Koppeln mit und Lösen von den Innenverzahnungen der Zahnräder aufweist.According to the invention, a rotary fastener according to
Erfindungsgemäß ist somit ein Antriebsritzel, das heißt ein gegenüber den Zahnrädern deutlich kleineres Zahnrad, vorgesehen, das mit den Zahnrädern mit Innenverzahnung koppelbar ist. Das Antriebsritzel ist mit einer spezifischen Lagerung in dem Drehverschluss eingebaut, nämlich einer Lagerung, welche eine Kopplung und Entkopplung (Lösen) mit den Innenverzahnungen der Zahnräder erlaubt. Das Antriebsritzel ist somit nicht ortsfest in dem Gehäuseteil des Drehverschlusses eingebaut, sondern kann gezielt verschoben oder verlagert werden, um die Kopplung und Entkopplung der Antriebsverzahnung je nach Bediensituation zu bewirken. Eine verschiebbare Lagerung des Antriebsritzels kann dabei jede Form einer verschiebbaren Lagerung an solchen Drehachsen für Ritzel aufweisen. Die Lagerung muss nur so verschiebbar oder veränderbar ausgebildet sein, dass bei einer Verschiebung die Kopplung und das Lösen mit den Zahnrädern ermöglicht wird. Das Antriebsritzel dient somit im gekoppelten Zustand einem Verbinden der Innenverzahnung des feststehenden ersten Zahnrads mit der Innenverzahnung des zweiten drehenden Zahnrades, welches seinerseits wiederum die Spannrolle des Spannelements betätigt. Somit kann durch einfaches Drehen am Drehknopf das Spannelement mit großer Kraft gespannt werden und ebenfalls durch einfaches Drehen in eine andere Richtung beispielsweise eine Lösung der Verbindung zwischen dem Ritzel und den Innenverzahnungen unmittelbar erfolgen, das heißt das Spannelement kann gelöst und somit der Verschluss in sehr einfacher Art und Weise dann wieder geöffnet werden. Der Drehverschluss gemäß der Erfindung ist sehr kompakt durch die geringe Bauhöhe und Breitenabmessung und umfasst eine vergleichsweise geringe Anzahl von erforderlichen Bauteilen und Komponenten. Damit ist die Anfälligkeit gegenüber Störungen sehr reduziert.According to the invention, a drive pinion, that is to say a gear wheel which is significantly smaller than the gear wheels, is therefore provided which can be coupled to the gear wheels with internal teeth. The drive pinion is built into the rotary cap with a specific bearing, namely a bearing that allows coupling and decoupling (release) with the internal teeth of the gears. The drive pinion is thus not installed in a stationary manner in the housing part of the rotating closure, but can be deliberately shifted or relocated in order to effect the coupling and decoupling of the drive gearing depending on the operating situation. A displaceable mounting of the drive pinion can have any form of a displaceable mounting on such axes of rotation for pinions. The bearing only has to be designed to be displaceable or changeable in such a way that, in the event of a displacement, the coupling and detachment with the gear wheels is made possible. In the coupled state, the drive pinion thus serves to connect the internal teeth of the stationary first gear wheel to the internal teeth of the second rotating gear wheel, which in turn actuates the tensioning roller of the tensioning element. Thus, by simply turning the rotary knob, the tensioning element can be tensioned with great force, and simply by turning in a different direction, for example, the connection between the pinion and the internal teeth can be released immediately, i.e. the tensioning element can be released and thus the closure in a very simple manner way then be reopened. The twist lock according to the invention is very compact due to the low overall height and width and includes a comparatively small number of parts and components required. This greatly reduces the susceptibility to interference.
Der erfindungsgemäße Drehverschluss lässt sich auch in Situationen einsetzen, in welchen eine umständliche Betriebsform nicht so gut möglich ist. Nicht zuletzt sind die Herstellungskosten gegenüber bisher bekannten derartigen Drehverschlüssen stark reduziert.The twist lock according to the invention can also be used in situations in which a cumbersome form of operation is not very possible. Last but not least, the production costs are greatly reduced compared to previously known twist-lock fasteners of this type.
Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist die Lagerung des Antriebsritzels mit einem Ändern der Drehrichtung am Drehknopf radial verschiebbar ausgebildet. Somit lässt sich durch einfaches Ändern der Drehrichtung am Drehknopf der Verschluss wieder lösen. Eine Drehrichtung, beispielsweise im Uhrzeigersinn, dient einem Verschließen und Spannen des Verschlusses durch ein Aufwickeln des Spannelementes. Ein beispielsweise umgekehrtes Drehen in entgegengesetzter Richtung zum Uhrzeigersinn ermöglicht so ein leichtes Lösen des Verschlusses. Das Antriebsritzel wird in seiner Lagerung einfach radial nach innen verschoben durch ein Ändern der Drehrichtung an dem Drehknopf. Somit sind keine zusätzlichen Betätigungselemente für ein Öffnen des Verschlusses nötig. Die Bedienung ist außerdem für den Nutzer durch solch eine Drehrichtungsumkehr sehr intuitiv.According to an advantageous embodiment of the invention, the bearing of the drive pinion is designed to be radially displaceable with a change in the direction of rotation on the rotary knob. This means that the lock can be released again by simply changing the direction of rotation of the rotary knob. A direction of rotation, for example clockwise, is used to close and tighten the closure by winding up the tightening element. A reverse rotation, for example, in the opposite direction to the clockwise direction thus enables the closure to be easily released. The drive pinion is simply moved radially inwards in its bearing by changing the direction of rotation on the rotary knob. Thus, no additional actuating elements are required to open the closure. The operation is also very intuitive for the user due to such a reversal of the direction of rotation.
Gemäß einer vorteilhaften Ausgestaltung der Erfindung weist die Lagerung des Antriebsritzels eine bogenförmige Teilkreisnut oder einen bogenförmigen Schlitz auf, welche sich über ihren Verlauf hinweg im Abstand bezüglich der Achse ändert. Somit ist die Lagerung des Antriebsritzels auch bezüglich der Innenverzahnung verschiebbar, indem beispielsweise ein Lagerbolzen des Antriebsritzels in der Teilkreisnut oder dem Schlitz gezielt verschoben und beispielsweise nach innen hin zu der Achse des Drehverschlusses verlagert wird. Mit solch einer Änderung des Abstandes kann der Eingriff und das Lösen aus den Innenverzahnungen von dem Antriebsritzel leicht und mit mechanisch unaufwändigen Komponenten bewirkt werden. Auch ist mit solch einer bogenförmigen Teilkreisnut oder einem bogenförmigen Schlitz eine sehr kompakte Bauweise, insbesondere eine sehr flache Form des Drehverschlusses, realisierbar. Die Teilkreisnut kann sich nach einer alternativen Ausgestaltung aus einem ersten Abschnitt, welcher konzentrisch zur Achse des Drehverschlusses ist, und einem zweiten Abschnitt, welcher nicht mehr dazu konzentrisch ist, sondern nach innen hin verläuft, zusammensetzen. Hierdurch wird eine Sicherheitsfunktion erzielt, da nicht sofort bei jedem leichten Drehen am Drehknopf gleich eine "Öffnung" der Verzahnung erfolgt.According to an advantageous embodiment of the invention, the bearing of the drive pinion has an arcuate part-circular groove or an arcuate slot, which changes in distance with respect to the axis over its course. Thus, the mounting of the drive pinion is also displaceable with respect to the internal toothing, for example by a bearing pin of the drive pinion being selectively displaced in the pitch circular groove or the slot and, for example, shifted inwards towards the axis of the rotary fastener. With such a change in distance, engagement and disengagement of the internal teeth of the pinion gear can be effected easily and with mechanically inexpensive components. Also is with such an arcuate part-circle groove or an arcuate slot, a very compact design, in particular a very flat shape of the screw cap, can be realized. According to an alternative embodiment, the part-circle groove can be composed of a first section, which is concentric to the axis of the rotary fastener, and a second section, which is no longer concentric thereto but runs inward. This achieves a safety function, since the toothing does not "open" immediately with every slight turn of the rotary knob.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Lagerung des Antriebsritzels in einem Zwischengehäuse im Innern des Gehäuseteils des Drehverschlusses vorgesehen. Solch ein Zwischengehäuse kann beispielsweise in Form eines U-förmigen Blechteils mit sehr dünner Bauform realisiert werden. Die Variierung des Abstandes der Lagerung von dem Antriebsritzel zu den Verzahnungen der Zahnräder ist so innerhalb des Gehäuses leicht zu realisieren. Die Lagerungselemente sind dabei keine aufwändigen Komponenten, die aufwändige Herstellungsschritte und Montagearbeiten erfordern.According to a further advantageous embodiment of the invention, the drive pinion is mounted in an intermediate housing inside the housing part of the rotary fastener. Such an intermediate housing can be implemented, for example, in the form of a U-shaped sheet metal part with a very thin design. The variation of the distance of the bearing from the drive pinion to the toothing of the gear wheels can easily be realized within the housing. The storage elements are not complex components that require complex manufacturing steps and assembly work.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung variiert die Zahl der Zähne der Zahnräder von den beiden Innenverzahnungen bei gleichem Kerndurchmesser leicht, mindestens um einen Zahn. Die Zähnedifferenz kann auch zwei, drei oder vier Zähne sein. Durch ein leichtes Variieren der Zähnezahl der beiden Zahnräder, nämlich dem mit dem Drehverschluss mit dem Drehknopf verbundenen Zahnrad und dem mit der Spannrolle verbundenen Zahnrad, kann im Zusammenwirken mit dem Antriebsritzel eine Art Selbsthemmung hervorgerufen werden. Der Drehverschluss ist somit quasi selbsthemmend gebildet und es wird verhindert, dass ein ungewolltes Verstellen des Drehverschlusses geschieht.According to a further advantageous embodiment of the invention, the number of teeth of the gears of the two internal gears varies slightly with the same core diameter, at least by one tooth. The tooth difference can also be two, three or four teeth. By slightly varying the number of teeth of the two gear wheels, namely the gear wheel connected to the rotary fastener with the rotary knob and the gear wheel connected to the tension roller, a kind of self-locking can be brought about in cooperation with the drive pinion. The rotary fastener is thus formed in a quasi-self-locking manner and an unintentional adjustment of the rotary fastener is prevented.
Die Zahl der Zähne und auch die Anzahl der Verzahnungen kann variieren, solange die beiden Verzahnungen der Zahnräder im Wesentlichen eine gleiche Kopplung mit dem Antriebsritzel gewährleisten.The number of teeth and also the number of toothings can vary, as long as the two toothings of the gearwheels ensure essentially the same coupling with the drive pinion.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung weist das Antriebsritzel ein vergleichsweise großes Untersetzungsverhältnis zu den Zahnrädern in einem Bereich von etwa 1 : 3 auf und das Antriebsritzel rotiert auf einer Kreisbahn um das feststehende Zahnrad. Mit solch einem recht großen Untersetzungsverhältnis kann auf sehr geringer Baugröße eine große Untersetzung realisiert werden, die für ein effektives Spannen des Spannelementes erforderlich ist. Auch lassen sich so größere Kräfte auf das Spannelement aufbringen im Vergleich zu einem geringeren Untersetzungs- oder Getriebeverhältnis. Wenn beispielsweise das erste Zahnrad am Gehäuse siebenundzwanzig Zähne, das zweite Zahnrad am Spannrad vierundzwanzig Zähne und das Ritzel neun Zähne hat, kann ein Untersetzungsverhältnis von insgesamt 1 : 8 realisiert werden.According to a further advantageous embodiment of the invention, the drive pinion has a comparatively large reduction ratio to the gear wheels in a range of approximately 1:3 and the drive pinion rotates on a circular path around the fixed gear wheel. With such a very large reduction ratio, a large reduction can be realized on a very small size, which is required for effective clamping of the clamping element. Greater forces can also be applied to the tensioning element in comparison to a lower reduction or gear ratio. For example, if the first gear on the housing has twenty-seven teeth, the second gear on the tensioning wheel has twenty-four teeth and the pinion has nine teeth, a total reduction ratio of 1:8 can be realized.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung sind die Zahnräder von dem Gehäuseteil des Drehverschlusses von außen her im Wesentlichen vollständig umschlossen. Die Zahnräder befinden sich daher im Wesentlichen im Innern eines abgeschlossenen Gehäuses und sind so vor äußeren Eingriffen und Beschädigungen geschützt.According to a further advantageous embodiment of the invention, the gear wheels are essentially completely enclosed from the outside by the housing part of the rotary closure. The gears are therefore essentially located inside a closed housing and are thus protected from external interference and damage.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung verläuft die Lagerung des Antriebsritzels exzentrisch zu einem Achsenmittelpunkt der Antriebsachse des Drehverschlusses. Mit solch einem exzentrisch verlaufenden Lagerungsteil lässt sich das Antriebsritzel auch anders von dem Eingriff in die Verzahnung der Innenverzahnungen lösen und dort wieder in Eingriff bringen, als dies mit einem bogenförmigen Schlitz oder Nut der Fall ist. Die Lagerung ist einfach exzentrisch im Verhältnis zu dem Achsenmittelpunkt der Antriebsachse realisiert und kann beispielsweise auch eine geradlinige Form oder andere Ausgestaltung als bisher beschrieben aufweisen.According to a further advantageous embodiment of the invention, the mounting of the drive pinion runs eccentrically to an axis center point of the drive axis of the rotary fastener. With such an eccentrically running bearing part, the drive pinion can also be disengaged from the toothing of the internal toothing and engaged there again in a different way than is the case with an arcuate slot or groove is. The bearing is implemented simply eccentrically in relation to the center point of the drive axle and can, for example, also have a rectilinear shape or a configuration other than that previously described.
Weitere Merkmale, Aspekte, Vorteile und Ausgestaltungen der Erfindung werden im Nachfolgenden mehr im Detail unter Bezugnahme auf die in den beigefügten Zeichnungen gezeigten Ausführungsbeispiele beschrieben.
- Fig. 1a, Fig. 1b, Fig. 1c
- und
- Fig. 1d
- zeigen eine Seitenansicht, eine Querschnittsansicht, eine Längsschnittansicht und eine Draufsicht von oben eines ersten Ausführungsbeispiels eines erfindungsgemäßen Drehverschlusses mit verlagerbarem Antriebsritzel;
- Fig. 2
- zeigt eine Draufsicht einer Innenansicht des Ausführungsbeispiels des erfindungsgemäßen Drehverschlusses zur Veranschaulichung des Zusammenwirkens zwischen Antriebsritzel und Nut zur Verlagerung des Antriebsritzels;
- Fig. 3
- zeigt eine perspektivische Explosionsansicht der Hauptkomponenten des Ausführungsbeispiels eines erfindungsgemäßen Drehverschlusses; und
- Fig. 4a, Fig. 4b, Fig. 4c, Fig. 4d, Fig. 4e
- und
- Fig. 4f
- zeigen verschiedene Seitenansichten, Draufsichten und Schnittdarstellungen der Komponenten des Ausführungsbeispiels eines erfindungsgemäßen Drehverschlusses.
- Figures 1a, 1b, 1c
- and
- Fig. 1d
- 12 show a side view, a cross-sectional view, a longitudinal cross-sectional view and a top plan view of a first embodiment of a rotary fastener with a displaceable drive gear according to the invention;
- 2
- shows a plan view of an interior view of the embodiment of the rotary fastener according to the invention to illustrate the interaction between the drive pinion and the groove for moving the drive pinion;
- 3
- Fig. 12 is an exploded perspective view of the main components of the embodiment of a rotary fastener according to the present invention; and
- Fig. 4a, Fig. 4b, Fig. 4c, Figures 4d, 4e
- and
- Fig. 4f
- show various side views, top views and sectional views of the components of the embodiment of a rotary fastener according to the invention.
In den
Wie es insbesondere in
Erfindungsgemäß sind so keine extra Betätigungskomponenten oder Bauteile erforderlich, um das Lösen der Spannung des Spannelementes und somit ein Öffnen des Drehverschlusses 10 zu ermöglichen. Durch einfaches Umkehren der Drehrichtung, wie mit dem Pfeil in der
Dem Fachmann des Gebietes sind alternative Ausgestaltungen von solchen Formen der verlagerbaren Anordnung des Antriebsritzels 7 bekannt. Beispielsweise kann statt einer bogenförmigen Nut 8 auch eine geradlinige Nut vorgesehen werden. Anstatt einer Nut 8 kann auch eine Aussparung oder eine Hebelmechanik vorgesehen werden. Auch lässt sich die Lagerung mit einer Verschiebemöglichkeit des Antriebsritzels 7 anders als in einem Zwischengehäuse 9 verwirklichen, beispielsweise durch direkte Integration in einen Teil der Zahnräder 4, 5 oder des Gehäuseteils 1.Alternative configurations of such forms of the displaceable arrangement of the
Die
In der
Die
Der erfindungsgemäße Drehverschluss 10 mit dem beschriebenen Aufbau hat den Vorteil, dass er eine sehr kompakte Bauform mit geringer Höhe insbesondere hat. Die Bestandteile und Komponenten sind in der Anzahl reduziert und der Drehverschluss 10 ist vergleichsweise leicht und kostengünstig herzustellen. Es sind keine weiteren Betätigungselemente wie ein Knopf oder ein Hebel für das Lösen der Spannung erforderlich. Mit dem erfindungsgemäßen Drehverschluss 10 lässt sich ferner ein sehr großes Übersetzungsverhältnis mit einem vergleichsweise einfachen Aufbau realisieren, so dass eine starke Spannwirkung beim Spannen auch von nicht sehr elastischen Schuhteilen oder ähnlichen Teilen ermöglicht wird. Der erfindungsgemäße Drehverschluss funktioniert nach der Art eines verzahnten kardanischen Getriebes, wie z.B. einem Zyklo-Getriebe, und weist die spezielle variable Lagerungsform des Antriebsritzels 7 auf, mittels welcher das Ineingriffbringen und Lösen der Verzahnungen von dem Antriebsritzel 7 und den Zahnrädern 4, 5 erfindungsgemäß bewerkstelligt wird.The
Claims (8)
- Rotary closure (10) for a sports article, piece of luggage or shoe, in particular a sports shoe, comprising a housing part (1) with an axis (3), to which a rotary knob (2) is attached in order to actuate a tension roller (6) for a tensioning element, in particular a cable, for the closure (10) in order to wind or release the tensioning element, as well as a first gear (4) with internal toothing connected to the rotary knob (2) and a rotating second gear (5) with internal toothing connected to the tensioning roller (6),
characterized in
that a drive pinion (7) which can be coupled to the gears (4, 5) is provided between said gears and that the drive pinion (7) has a mounting which can be displaced radially with respect to the drive axis (3) in order to selectively couple the drive pinion to and release the drive pinion from the inner toothings of the gears (4, 5). - Rotary closure (10) according to claim 1, characterized in that the mounting of the drive pinion (7) is designed to be radially displaceable with a change in the direction of rotation on the rotary knob (2).
- Rotary closure (10) according to claim 1 or 2, characterized in that the mounting of the drive pinion (7) has an arcuate pitch circle groove (8) which varies in distance with respect to the axis (3) over its course.
- Rotary closure (10) according to one of the preceding claims, characterized in that the mounting of the drive pinion (7) is provided in an intermediate housing (9) inside the housing part (1).
- Rotary closure (10) according to one of the preceding claims, characterized in that, for the same core diameter, the number of teeth of the gears (4, 5) varies slightly, at least by one tooth.
- Rotary closure (10) according to one of the preceding claims, characterized in that the drive pinion (7) has a comparatively large reduction ratio to the gears (4, 5) in the range of 1 : 3 and rotates on a circular path around the stationary gear (4).
- Rotary closure (10) according to one of the preceding claims, characterized in that the gears (4, 5) are substantially enclosed by the housing part (1) from the outside.
- Rotary closure (10) according to one of the preceding claims, characterized in that the mounting of the drive pinion (7) extends eccentrically to the axis center of the axis (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE202019105576.6U DE202019105576U1 (en) | 2019-10-10 | 2019-10-10 | Screw cap with clamping element |
PCT/EP2020/077772 WO2021069341A1 (en) | 2019-10-10 | 2020-10-05 | Rotary closure with tensioning element |
Publications (2)
Publication Number | Publication Date |
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EP4041018A1 EP4041018A1 (en) | 2022-08-17 |
EP4041018B1 true EP4041018B1 (en) | 2023-03-08 |
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EP20789892.5A Active EP4041018B1 (en) | 2019-10-10 | 2020-10-05 | Rotary closure with tensioning element |
Country Status (7)
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US (1) | US12053058B2 (en) |
EP (1) | EP4041018B1 (en) |
JP (1) | JP7536865B2 (en) |
CN (1) | CN114502031B (en) |
DE (1) | DE202019105576U1 (en) |
ES (1) | ES2942663T3 (en) |
WO (1) | WO2021069341A1 (en) |
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CN110921437B (en) * | 2019-12-18 | 2024-10-01 | 深圳市菲特奥科技有限公司 | Rope collecting device and article with rope belt |
CN112660944B (en) * | 2020-12-17 | 2023-09-12 | 珠海京师智造科技有限公司 | Rope locking device |
Citations (1)
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US20150007422A1 (en) * | 2013-07-02 | 2015-01-08 | Boa Technology Inc. | Tension limiting mechanisms for closure devices and methods therefor |
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CH677586A5 (en) * | 1988-11-09 | 1991-06-14 | Lange Int Sa | |
DE3913018A1 (en) * | 1989-04-20 | 1990-10-25 | Weinmann & Co Kg | TURN LOCK FOR A SPORTSHOE, ESPECIALLY A SKI SHOE |
DE3926514A1 (en) | 1989-08-10 | 1991-02-14 | Weinmann & Co Kg | TURN LOCK FOR A SPORTSHOE, ESPECIALLY A SKI SHOE |
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WO2001011948A1 (en) | 1999-08-18 | 2001-02-22 | Gerhard Arnold | Gear assembly and roll-up leash for dogs, said leash being provided with such a gear assembly |
DE10018108C2 (en) * | 2000-04-12 | 2002-04-04 | Keiper Gmbh & Co | Gear fitting for a vehicle seat adjuster |
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KR100978881B1 (en) * | 2009-08-31 | 2010-08-30 | 윤상경 | Device for tightenning up a shoelace |
TW201330988A (en) * | 2012-01-16 | 2013-08-01 | New Way Tools Co Ltd | Driving tool |
WO2014001918A2 (en) | 2012-06-22 | 2014-01-03 | Revision Military S.A.R.L. | Tensioning reel |
CN102715705B (en) * | 2012-06-27 | 2014-11-05 | 赖宜华 | Rotary shoelace anti-looseness fastener |
CN104394730B (en) | 2012-11-30 | 2016-09-28 | 彪马欧洲公司 | Rotating type locking device for footwear |
KR102297325B1 (en) * | 2013-09-13 | 2021-09-03 | 보아 테크놀러지, 인크. | Reel based closure device and method therefore |
KR101572647B1 (en) | 2014-05-15 | 2015-12-11 | (주)경도상사 | Device for tightenning up a shoelace with locking cover |
JP6450584B2 (en) * | 2014-12-22 | 2019-01-09 | 株式会社ジャパーナ | Winding device and shoes equipped therewith |
EP3232848B1 (en) * | 2015-10-07 | 2018-04-25 | Puma Se | Shoe, in particular a sports shoe |
CN108135312B (en) * | 2015-10-07 | 2020-09-22 | 彪马欧洲股份公司 | Shoe, in particular sports shoe |
CN108366639B (en) * | 2015-12-02 | 2022-03-25 | 彪马欧洲股份公司 | Method for fastening shoes, especially sports shoes |
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-
2019
- 2019-10-10 DE DE202019105576.6U patent/DE202019105576U1/en active Active
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- 2020-10-05 US US17/766,701 patent/US12053058B2/en active Active
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US20150007422A1 (en) * | 2013-07-02 | 2015-01-08 | Boa Technology Inc. | Tension limiting mechanisms for closure devices and methods therefor |
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CN114502031A (en) | 2022-05-13 |
US20240065382A1 (en) | 2024-02-29 |
DE202019105576U1 (en) | 2019-10-22 |
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EP4041018A1 (en) | 2022-08-17 |
ES2942663T3 (en) | 2023-06-05 |
CN114502031B (en) | 2024-01-30 |
WO2021069341A1 (en) | 2021-04-15 |
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JP2022550992A (en) | 2022-12-06 |
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