WO2004096580A1 - Bicycle hub - Google Patents
Bicycle hub Download PDFInfo
- Publication number
- WO2004096580A1 WO2004096580A1 PCT/EP2004/004201 EP2004004201W WO2004096580A1 WO 2004096580 A1 WO2004096580 A1 WO 2004096580A1 EP 2004004201 W EP2004004201 W EP 2004004201W WO 2004096580 A1 WO2004096580 A1 WO 2004096580A1
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- WO
- WIPO (PCT)
- Prior art keywords
- axle
- end pieces
- axle end
- bicycle hub
- axis
- 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.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
Definitions
- the invention relates to a bicycle hub.
- the hub housing has spoke holes for connecting the accumulators to a hub housing.
- the spoke holes usually run in the axial direction.
- the spokes have a spoke arch of approximately 90 ° and a subsequent spoke head.
- the spoke arch is a weak point due to the tensile forces and bending moments that occur in the memory. In particular, the inside of the arch tends to crack due to the plastic deformation that occurred during the manufacture of the spoke. This can lead to spoke breaks.
- spokes without a spoke arch are known, which are inserted into essentially radial spoke holes.
- the provision of radial spoke holes has the disadvantage, however, that the axle projecting through the hub shell must be removed before the spoke is inserted. The axle must also be removed from the hub housing when replacing individual spokes. When dismantling and then reassembling the axis, assembly errors can occur. This can lead to considerable loads on the bearing stanchions arranged between the axle and the hub housing and thus reduce the service life of the bearing stanchions.
- the object of the invention is to provide a bicycle hub, in which essentially radially extending spoke holes are also easily accessible. According to the invention, the object is achieved by the features of claim 1.
- the axis of the bicycle hub is only arranged within the hub housing between two edge regions.
- the preferably essentially radial spoke holes are provided in the edge regions. No axis is therefore provided in the area of the spoke holes.
- the spoke holes which in particular run essentially radially, are easily accessible for storing the bicycle wheel or for exchanging individual spokes.
- axle end pieces are provided which are detachably connected to the axle. The axle end pieces are thus detached from the axle in order to make the spoke holes accessible. For example, after replacing a spoke, the corresponding axle end piece is reconnected to the axle, so that the axle end pieces are connected to the fork dropouts and the wheel can thus be mounted in the fork again.
- the axle end pieces can be frictionally connected to the axle.
- the axle preferably has receiving openings into which the axle end pieces can be inserted.
- a positive connection can also be provided, for example, in addition to or instead of the frictional engagement, so that no slipping or twisting occurs between the axle end pieces and the axle. Since for this purpose a recess would have to be provided in the axle end pieces and / or the axle, through which the rigidity of the axle and / or the axle end pieces is impaired, an exclusively frictional connection is preferred.
- a clamping element is preferably provided which is arranged between the axle and the respective axle end piece.
- the clamping element is preferably an O-ring.
- the two axle end pieces are connected to one another.
- the connection can in particular be made by screwing, the screwing preferably taking place within the hollow axis. It is also possible to screw the two axle end pieces outside the axle, in particular in the edge region of the hub housing.
- connection of the two axle end pieces has the particular advantage that the axle is stiffened.
- the bending stiffness of the axle is increased by the additional provision of the connected axle end pieces.
- the elastic bending of the axis is as small as possible in order to avoid damaging the bearings.
- the axle bends in conventional hubs.
- considerable forces act on the inner rings of the ball bearings. This leads to the occurrence of shear forces within the bearings, whereby the balls of the bearing are pressed against the edge of their raceway. This leads to increased wear or breakage of the balls.
- FIG. 1 shows a schematic longitudinal section through a bicycle hub according to the invention without axle end pieces
- FIG. 2 shows a longitudinal section of the bicycle hub shown in FIG. 1 with a first embodiment of the axle end pieces
- Fig. 3 shows a longitudinal section of the bicycle hub shown in Fig. 1 with a second embodiment of the axle end pieces and
- Fig. 4 is a longitudinal section of the bicycle hub shown in Fig. 1 with a third embodiment of the axle end pieces.
- the rotationally symmetrical bicycle hub has a hub housing 10.
- a cylindrical opening 14 is arranged in the edge regions 12 provided at the two outer ends.
- Spoke holes 16 are provided in this area at regular intervals around the circumference of the bicycle hub. Both the left and the right spoke holes 16 are shown in the illustration for clarification, although these are arranged rotated relative to one another. The spoke holes on the left and right sides were rotated into the plane of the drawing for clarity.
- the straight radial spokes which do not have a spoke arch, are inserted from the inside outwards into the essentially radial spoke holes. A head of the spoke is thus on the inside of the cylindrical recess 14.
- An axis 18 which is hollow in the exemplary embodiment shown is arranged within the hub housing 10. The axis 18 is arranged entirely within the hub shell 10. The hub 18 is arranged in particular between the two edge regions and does not protrude into the edge regions 12. The assembly of the spokes, ie the insertion of the spokes into the spoke holes 16 from the inside to the outside, is thus not hindered by the axis 18.
- Two bearing posts 20 are arranged between the axle 18 and the hub housing 10.
- axle end pieces 22 In order to be able to connect the axle 18 to the fork of the bicycle, in particular the fork dropouts, two identically designed axle end pieces 22 are provided in a first embodiment (FIG. 2).
- the axle end pieces 22 have an outer cylindrical extension 24, via which a connection to the fork dropout ends is made, for example, by screwing in a screw.
- the axle end pieces 22 On the opposite sides, the axle end pieces 22 have cylindrical projections 26, the outer diameter of which essentially corresponds to the inner diameter of the hollow axle 18.
- the axle end pieces 22 are inserted into the hollow axle 18 from the outside. In this case, a frictional connection takes place between the cylindrical projections 26 and the hollow axis 18.
- a clamping element 28 is provided for each axle end piece 22. In the illustrated embodiment, the clamping element 28 is in each case an O-ring surrounding the cylindrical extension 26.
- the two axle end pieces 22 are thus inserted into receiving openings 30 (FIG. 1) of the axle 18.
- it is a hollow axis, so that it is not two separate receiving openings, but rather a continuous bore which forms the two receiving openings 30.
- the axle end pieces In a second embodiment (FIG. 3) of the axle end pieces 32, in contrast to the embodiment shown in FIG. 2, the axle end pieces have longer cylindrical projections 34.
- the ends of the cylindrical lugs 34 are provided with an internal thread 36 and an external thread 38. This makes it possible to screw the two axle end pieces together within the hollow axle 18.
- the axis 18 is in turn frictionally connected to the end pieces 32.
- the possibility of screwing the two axle end pieces 32 enables the bearings 20 to be preloaded. This increases the life of the bearings.
- the two cylindrical lugs 34 of the axle end pieces 32 form a continuous additional axle which stiffens the axle 18 and thus reduces the deflection of the axle 18.
- the two axle end pieces 40, 42 are likewise screwed to one another, the screwing not taking place within the axis 18, as in the second exemplary embodiment, but outside the axis 18 in one of the two edge regions 12 of the hub shell 10.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Fahrradnabe bicycle hub
Die Erfindung betrifft eine Fahrradnabe.The invention relates to a bicycle hub.
Zur Verbindung der Speichern mit einem Nabengehäuse weist das Nabengehäuse Speichenlöcher auf. Üblicherweise verlaufen die Speichenlöcher in axialer Richtung. Die Speichen weisen einen Speichenbogen von etwa 90° und einen sich daran anschließenden Speichenkopf auf. Der Speichenbogen stellt auf Grund der Zugkräfte und Biegemomente, die in der Speicher auftreten, eine Schwachstelle dar. Insbesondere die Innenseite des Bogens neigt auf Grund der bei der Herstellung der Speiche erfolgten plastischen Verformung zur Rissbildung. Dies kann zu Speichenbrüchen führen.The hub housing has spoke holes for connecting the accumulators to a hub housing. The spoke holes usually run in the axial direction. The spokes have a spoke arch of approximately 90 ° and a subsequent spoke head. The spoke arch is a weak point due to the tensile forces and bending moments that occur in the memory. In particular, the inside of the arch tends to crack due to the plastic deformation that occurred during the manufacture of the spoke. This can lead to spoke breaks.
Ferner sind Speichen ohne Speichenbogen bekannt, die in im Wesentlichen radial verlaufende Speichenlöcher eingesetzt werden. Das Vorsehen von radialen Speichenlöchern hat jedoch den Nachteil, dass vor dem Einsetzen der Speiche die durch das Nabengehäuse hindurch ragende Achse demontiert werden muss. Auch beim Auswechseln einzelner Speichen muss somit die Achse aus dem Nabengehäuse herausgenommen werden. Bei der Demontage und anschließenden erneuten Montage der Achse kann es zu Montagefehlern kommen. Dies kann zu erheblichen Belastungen der zwischen der Achse und dem Nabengehäuse angeordneten Lagerrungen und somit zur Verringerung der Lebensdauer der Lagerrungen führen.Furthermore, spokes without a spoke arch are known, which are inserted into essentially radial spoke holes. The provision of radial spoke holes has the disadvantage, however, that the axle projecting through the hub shell must be removed before the spoke is inserted. The axle must also be removed from the hub housing when replacing individual spokes. When dismantling and then reassembling the axis, assembly errors can occur. This can lead to considerable loads on the bearing stanchions arranged between the axle and the hub housing and thus reduce the service life of the bearing stanchions.
Aufgabe der Erfindung ist es, eine Fahrradnabe zu schaffen, bei der insbesondere auch im Wesentlichen radial verlaufende Speichenlöcher gut zugänglich sind. Die Lösung der Aufgabe erfolgt erfindungsgemäß durch die Merkmale des Anspruchs 1.The object of the invention is to provide a bicycle hub, in which essentially radially extending spoke holes are also easily accessible. According to the invention, the object is achieved by the features of claim 1.
Erfindungsgemäß ist die Achse der Fahrradnabe nur innerhalb des Nabengehäuses zwischen zwei Randbereichen angeordnet. In den Randbereichen sind die vorzugsweise im Wesentlichen radial verlaufenden Speichenlöcher vorgesehen. Im Bereich der Speichenlöcher ist somit keine Achse vorgesehen. Hierdurch sind die Speichenlöcher, die insbesondere im Wesentlichen radial verlaufen, zum Einspeichen des Fahrradrades oder zum Auswechseln einzelner Speichen gut zugänglich. Um die Achse mit der Fahrradgabel, d.h. mit den Ausfallenden der Gabel, verbinden zu können, sind erfindungsgemäß Achsendstücke vorgesehen, die mit der Achse lösbar verbunden sind. Die Achsendstücke werden somit von der Achse gelöst, um die Zugänglichkeit der Speichenlöcher zu ermöglichen. Beispielsweise nach dem Auswechseln einer Speiche wird das entsprechende Achsendstück wieder mit der Achse verbunden, so dass die Achsendstücke mit den Gabelausfallenden verbunden und somit das Rad wieder in der Gabel montiert werden kann.According to the invention, the axis of the bicycle hub is only arranged within the hub housing between two edge regions. The preferably essentially radial spoke holes are provided in the edge regions. No axis is therefore provided in the area of the spoke holes. As a result, the spoke holes, which in particular run essentially radially, are easily accessible for storing the bicycle wheel or for exchanging individual spokes. Around the axis with the bicycle fork, i.e. to connect to the dropouts of the fork, according to the invention, axle end pieces are provided which are detachably connected to the axle. The axle end pieces are thus detached from the axle in order to make the spoke holes accessible. For example, after replacing a spoke, the corresponding axle end piece is reconnected to the axle, so that the axle end pieces are connected to the fork dropouts and the wheel can thus be mounted in the fork again.
Die Achsendstücke können reibschlüssig mit der Achse verbunden sein. Vorzugsweise weist die Achse hierzu Aufnahmeöffnungen auf, in die die Achsendstücke eingesteckt werden können. Um eine sichere Verbindung zwischen den Achsendstücken und der Achse zu gewährleisten, kann beispielsweise zusätzlich oder anstatt des Reibschlusses auch ein Formschluss vorgesehen sein, so dass kein Rutschen oder Verdrehen zwischen den Achsendstücken und der Achse auftritt. Da hierzu in den Achsendstücken und/oder der Achse eine Aussparung vorgesehen sein müsste, durch die die Steifigkeit der Achse und/oder der Achsendstücke beeinträchtigt wird, ist eine ausschließlich reibschlüssige Verbindung bevorzugt.The axle end pieces can be frictionally connected to the axle. For this purpose, the axle preferably has receiving openings into which the axle end pieces can be inserted. In order to ensure a secure connection between the axle end pieces and the axle, a positive connection can also be provided, for example, in addition to or instead of the frictional engagement, so that no slipping or twisting occurs between the axle end pieces and the axle. Since for this purpose a recess would have to be provided in the axle end pieces and / or the axle, through which the rigidity of the axle and / or the axle end pieces is impaired, an exclusively frictional connection is preferred.
Besonders bevorzugt ist es, eine durchgehende Aufnahmeöffnung vorzusehen, so dass es sich bei der Achse um eine Hohlachse handelt. Hierdurch kann insbesondere auch das Gewicht der Achse reduziert werden. Bei einer bevorzugten Ausführungsform, bei der die Achsendstücke getrennt voneinander durch Einstecken in Aufnahmeöffnungen bzw. in die Hohlachse mit der Achse verbunden werden, ist vorzugsweise ein Klemmelement vorgesehen, das zwischen der Achse und dem jeweiligen Achsendstück angeordnet ist. Bei dem Klemmelement handelt es sich vorzugsweise um einen O-Ring.It is particularly preferred to provide a continuous receiving opening so that the axis is a hollow axis. As a result, the weight of the axle can be reduced in particular. In a preferred embodiment, in which the axle end pieces are connected to the axle separately from one another by insertion into receiving openings or into the hollow axle, a clamping element is preferably provided which is arranged between the axle and the respective axle end piece. The clamping element is preferably an O-ring.
Bei einer weiteren bevorzugten Ausführungsform sind die beiden Achsendstücke mit einander verbunden. Die Verbindung kann insbesondere durch ein Verschrauben erfolgen, wobei die Verschraubung vorzugsweise innerhalb der hohlen Achse erfolgt. Ebenso ist es möglich, ein Verschrauben der beiden Achsendstücke außerhalb der Achse, insbesondere im Randbereich des Nabengehäuses, vorzusehen.In a further preferred embodiment, the two axle end pieces are connected to one another. The connection can in particular be made by screwing, the screwing preferably taking place within the hollow axis. It is also possible to screw the two axle end pieces outside the axle, in particular in the edge region of the hub housing.
Das Verbinden der beiden Achsendstücke hat insbesondere den Vorteil, dass die Achse versteift wird. Insbesondere die Biegesteifigkeit der Achse wird durch das zusätzliche Vorsehen der miteinander verbundenen Achsendstücke erhöht. Insbesondere bei besonders leichten und leichtläufigen Rillenkugellagern, insbesondere Dünnring-Rillenkugellagern, ist es von besonderer Bedeutung, dass die elastische Biegung der Achse möglichst gering ist, um ein Beschädigen der Lagerungen zu vermeiden. Beispielsweise beim Überfahren von Bodenwellen biegt sich die Achse bei herkömmlichen Naben durch. Hierbei wirken erhebliche Kräfte auf die Innenringe der Kugellager. Dies führt zum Auftreten von Scherkräften innerhalb der Lager, wobei die Kugeln des Lagers an die Kante ihrer Laufrille gedrückt werden. Dies führt zu einer Erhöhung des Verschleißes oder ggf. zum Bruch der Kugeln. Durch die erfindungsgemäße Versteifung der Achse auf Grund des Vorsehens zweier miteinander verbundener und sich damit über die gesamte Breite der Nabe erstreckender Achsendstücke ist diese Gefahr verringert. Hierdurch ist die Lebensdauer der Lager erheblich erhöht. Des Weiteren weist das Vorsehen zweier miteinander verbundebner Achsendstücke den Vorteil auf, dass insbesondere durch Verschrauben der beiden Achsendstücke eine Vorspannung auf die Lager aufgebracht werden kann. Hierdurch wird die Lebensdauer der Lager weiter erhöht.The connection of the two axle end pieces has the particular advantage that the axle is stiffened. In particular, the bending stiffness of the axle is increased by the additional provision of the connected axle end pieces. Particularly in the case of particularly light and smooth-running deep groove ball bearings, in particular thin-ring deep groove ball bearings, it is particularly important that the elastic bending of the axis is as small as possible in order to avoid damaging the bearings. For example, when driving over bumps, the axle bends in conventional hubs. Here, considerable forces act on the inner rings of the ball bearings. This leads to the occurrence of shear forces within the bearings, whereby the balls of the bearing are pressed against the edge of their raceway. This leads to increased wear or breakage of the balls. This risk is reduced by the stiffening of the axle according to the invention due to the provision of two axle end pieces which are connected to one another and thus extend over the entire width of the hub. This significantly increases the life of the bearings. Furthermore, the provision of two axle end pieces connected to one another has the advantage that, in particular, by screwing the two Axle end pieces a preload can be applied to the bearings. This further increases the life of the bearings.
Nachfolgend wird die Erfindung anhand bevorzugter Ausführungsformen näher erläutert.The invention is explained in more detail below on the basis of preferred embodiments.
Es zeigen:Show it:
Fig. 1 einen schematischen Längsschnitt durch eine Erfindungsgemäße Fahrradnabe ohne Achsendstücke,1 shows a schematic longitudinal section through a bicycle hub according to the invention without axle end pieces,
Fig. 2 einen Längsschnitt der in Fig. 1 dargestellten Fahrradnabe mit einer ersten Ausführungsform der Achsendstücke,2 shows a longitudinal section of the bicycle hub shown in FIG. 1 with a first embodiment of the axle end pieces,
Fig. 3 einen Längsschnitt der in Fig. 1 dargestellten Fahrradnabe mit einer zweiten Ausführungsform der Achsendstücke undFig. 3 shows a longitudinal section of the bicycle hub shown in Fig. 1 with a second embodiment of the axle end pieces and
Fig. 4 einen Längsschnitt der in Fig. 1 dargestellten Fahrradnabe mit einer dritten Ausführungsform der Achsendstücke.Fig. 4 is a longitudinal section of the bicycle hub shown in Fig. 1 with a third embodiment of the axle end pieces.
Die rotationssymmetrisch ausgebildete Fahrradnabe weist ein Nabengehäuse 10 auf. In den an den beiden äußeren Enden vorgesehenen Randbereichen 12 ist eine zylindrische Öffnung 14 angeordnet. In diesem Bereich sind in regelmäßigen Abständen um den Umfang der Fahrradnabe herum Speichenlöcher 16 vorgesehen. In der Darstellung sind zur Verdeutlichung sowohl die linken als auch die rechten Speichenlöcher 16 dargestellt, obwohl diese zueinander verdreht angeordnet sind. Die Speichenlöcher der linken sowie der rechten Seite wurden somit zur Verdeutlichung in die Zeichenebene gedreht.The rotationally symmetrical bicycle hub has a hub housing 10. A cylindrical opening 14 is arranged in the edge regions 12 provided at the two outer ends. Spoke holes 16 are provided in this area at regular intervals around the circumference of the bicycle hub. Both the left and the right spoke holes 16 are shown in the illustration for clarification, although these are arranged rotated relative to one another. The spoke holes on the left and right sides were rotated into the plane of the drawing for clarity.
In die im Wesentlichen radial verlaufenden Speichenlöcher werden die gerade ausgebildeten Speichen, die keinen Speichenbogen aufweisen, von innen nach außen eingeführt. Ein Kopf der Speiche liegt somit an der Innenseite der zylindrischen Ausnehmung 14 an. Innerhalb des Nabengehäuses 10 ist eine im dargestellten Ausführungsbeispiel hohl ausgebildete Achse 18 angeordnet. Die Achse 18 ist vollständig innerhalb des Nabengehäuses 10 angeordnet. Die Nabe 18 ist insbesondere zwischen den beiden Randbereichen angeordnet und ragt nicht in die Randbereiche 12 hinein. Die Montage der Speichen, d.h. das Einführen der Speichen in die Speichenlöcher 16 von innen nach außen ist somit durch die Achse 18 nicht behindert.The straight radial spokes, which do not have a spoke arch, are inserted from the inside outwards into the essentially radial spoke holes. A head of the spoke is thus on the inside of the cylindrical recess 14. An axis 18 which is hollow in the exemplary embodiment shown is arranged within the hub housing 10. The axis 18 is arranged entirely within the hub shell 10. The hub 18 is arranged in particular between the two edge regions and does not protrude into the edge regions 12. The assembly of the spokes, ie the insertion of the spokes into the spoke holes 16 from the inside to the outside, is thus not hindered by the axis 18.
Zwischen der Achse 18 und dem Nabengehäuse 10 sind zwei Lagerrungen 20 angeordnet.Two bearing posts 20 are arranged between the axle 18 and the hub housing 10.
Um die Achse 18 mit der Gabel des Fahrrads, insbesondere den Gabelausfallenden, verbinden zu können, sind in einer ersten Ausführungsform (Fig. 2) zwei identisch ausgebildete Achsendstücke 22 vorgesehen. Die Achsendstücke 22 weisen einen äußeren zylindrischen Ansatz 24 auf, über den beispielsweise durch Einschrauben einer Schraube eine Verbindung mit den Gabelausfallenden erfolgt. Auf den gegenüber liegenden Seiten weisen die Achsendstücke 22 zylindrische Ansätze 26 auf, deren Außendurchmesser dem Innendurchmesser der hohlen Achse 18 im Wesentlichen entspricht. Zur Verbindung der Achsendstücke 22 mit der Achse 18 werden die Achsendstücke 22 von außen in die hohle Achse 18 eingesteckt. Hierbei erfolgt eine reibschlüssige Verbindung zwischen den zylindrischen Ansätzen 26 und der hohlen Achse 18. Zur Verbesserung der Verbindung ist je Achsendstück 22 ein Klemmelement 28 vorgesehen. Im dargestellten Ausführungsbeispiel handelt es sich bei dem Klemmelement 28 jeweils um einen den zylindrischen Ansatz 26 umgebenden O-Ring.In order to be able to connect the axle 18 to the fork of the bicycle, in particular the fork dropouts, two identically designed axle end pieces 22 are provided in a first embodiment (FIG. 2). The axle end pieces 22 have an outer cylindrical extension 24, via which a connection to the fork dropout ends is made, for example, by screwing in a screw. On the opposite sides, the axle end pieces 22 have cylindrical projections 26, the outer diameter of which essentially corresponds to the inner diameter of the hollow axle 18. To connect the axle end pieces 22 to the axle 18, the axle end pieces 22 are inserted into the hollow axle 18 from the outside. In this case, a frictional connection takes place between the cylindrical projections 26 and the hollow axis 18. To improve the connection, a clamping element 28 is provided for each axle end piece 22. In the illustrated embodiment, the clamping element 28 is in each case an O-ring surrounding the cylindrical extension 26.
Die beiden Achsendstücke 22 werden somit in Aufnahmeöffnungen 30 (Fig. 1) der Achse 18 eingesteckt. Im dargestellten Ausführungsbeispiel handelt es sich um eine Hohlachse, so dass nicht zwei gesonderte Aufnahmeöffnungen, sondern eine durchgehende Bohrung vorgesehen ist, die die beiden Aufnahmeöffnungen 30 bildet. Bei einer zweiten Ausführungsform (Fig. 3) der Achsendstücke 32 weisen die Achsendstücke im Unterschied zu der in Fig. 2 dargestellten Ausführungsform längere zylindrische Ansätze 34 auf. Die Enden der zylindrischen Ansätze 34 sind mit einem Innengewinde 36 bzw. einem Außengewinde 38 versehen. Hierdurch ist es möglich, die beiden Achsendstücke innerhalb der hohlen Achse 18 miteinander zu verschrauben. Die Achse 18 ist mit den Endstücken 32 wiederum reibschlüssig verbunden. Durch die Möglichkeit des Verschraubens der beiden Achsendstücke 32 ist ein Vorspannen der Lager 20 möglich. Hierdurch ist die Lebensdauer der Lager erhöht. Ferner bilden die beiden zylindrischen Ansätze 34 der Achsendstücke 32 eine durchgehende Zusatzachse, die die Achse 18 versteift und somit die Durchbiegung der Achse 18 verringert.The two axle end pieces 22 are thus inserted into receiving openings 30 (FIG. 1) of the axle 18. In the exemplary embodiment shown, it is a hollow axis, so that it is not two separate receiving openings, but rather a continuous bore which forms the two receiving openings 30. In a second embodiment (FIG. 3) of the axle end pieces 32, in contrast to the embodiment shown in FIG. 2, the axle end pieces have longer cylindrical projections 34. The ends of the cylindrical lugs 34 are provided with an internal thread 36 and an external thread 38. This makes it possible to screw the two axle end pieces together within the hollow axle 18. The axis 18 is in turn frictionally connected to the end pieces 32. The possibility of screwing the two axle end pieces 32 enables the bearings 20 to be preloaded. This increases the life of the bearings. Furthermore, the two cylindrical lugs 34 of the axle end pieces 32 form a continuous additional axle which stiffens the axle 18 and thus reduces the deflection of the axle 18.
Bei einer dritten Ausführungsform (Fig. 4) sind die beiden Achsendstücke 40,42 ebenfalls miteinander verschraubt, wobei die Verschraubung nicht innerhalb der Achse 18, wie im zweiten Ausführungsbeispiel, sondern außerhalb der Achse 18 in einem der beiden Randbereiche 12 des Nabengehäuses 10 erfolgt. In a third embodiment (FIG. 4), the two axle end pieces 40, 42 are likewise screwed to one another, the screwing not taking place within the axis 18, as in the second exemplary embodiment, but outside the axis 18 in one of the two edge regions 12 of the hub shell 10.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20306760.6 | 2003-05-02 | ||
| DE20306760U DE20306760U1 (en) | 2003-05-02 | 2003-05-02 | bicycle hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004096580A1 true WO2004096580A1 (en) | 2004-11-11 |
Family
ID=32946542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/004201 Ceased WO2004096580A1 (en) | 2003-05-02 | 2004-04-21 | Bicycle hub |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE20306760U1 (en) |
| WO (1) | WO2004096580A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8757341B2 (en) | 2010-08-03 | 2014-06-24 | Jochen Klieber | Hub with star ratchet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2618101A1 (en) * | 1987-07-17 | 1989-01-20 | Gepiroues | HUB FOR THE SAME FRONT AND REAR WHEEL CYCLE |
| US5494337A (en) * | 1993-08-13 | 1996-02-27 | Behnke; James W. | Bicycle wheel with a straight through spoke and hub combination |
| FR2794684A1 (en) * | 1999-06-10 | 2000-12-15 | Corima | Hub, for drive wheel, has central shaft with external tubular body mounted on bearings, and with collar at one end extended by spindle, mounted on intermediate bearings within tubular body |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4128723A1 (en) * | 1991-08-29 | 1993-03-04 | Wehmeyer Zweiradteile Gmbh G | Divisible drive hub for bicycle - has rapid adjustment mechanism to eliminate play in contact zones |
| DE19724327B4 (en) * | 1997-06-10 | 2009-01-29 | Sram Deutschland Gmbh | Hub for a spoked wheel |
-
2003
- 2003-05-02 DE DE20306760U patent/DE20306760U1/en not_active Expired - Lifetime
-
2004
- 2004-04-21 WO PCT/EP2004/004201 patent/WO2004096580A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2618101A1 (en) * | 1987-07-17 | 1989-01-20 | Gepiroues | HUB FOR THE SAME FRONT AND REAR WHEEL CYCLE |
| US5494337A (en) * | 1993-08-13 | 1996-02-27 | Behnke; James W. | Bicycle wheel with a straight through spoke and hub combination |
| FR2794684A1 (en) * | 1999-06-10 | 2000-12-15 | Corima | Hub, for drive wheel, has central shaft with external tubular body mounted on bearings, and with collar at one end extended by spindle, mounted on intermediate bearings within tubular body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8757341B2 (en) | 2010-08-03 | 2014-06-24 | Jochen Klieber | Hub with star ratchet |
Also Published As
| Publication number | Publication date |
|---|---|
| DE20306760U1 (en) | 2004-09-02 |
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