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DE19955875A1 - Wheel with bending-resistant spokes, for bicycles etc. has spokes formed from sheet metal with profiling, in a one-piece star part, one for each side of a wheel - Google Patents

Wheel with bending-resistant spokes, for bicycles etc. has spokes formed from sheet metal with profiling, in a one-piece star part, one for each side of a wheel

Info

Publication number
DE19955875A1
DE19955875A1 DE1999155875 DE19955875A DE19955875A1 DE 19955875 A1 DE19955875 A1 DE 19955875A1 DE 1999155875 DE1999155875 DE 1999155875 DE 19955875 A DE19955875 A DE 19955875A DE 19955875 A1 DE19955875 A1 DE 19955875A1
Authority
DE
Germany
Prior art keywords
spokes
wheel
hub
rim
che
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
Application number
DE1999155875
Other languages
German (de)
Inventor
Hennig Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PROTOS ZWEIRAD TECHNIK GmbH
Original Assignee
PROTOS ZWEIRAD TECHNIK GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PROTOS ZWEIRAD TECHNIK GmbH filed Critical PROTOS ZWEIRAD TECHNIK GmbH
Priority to DE1999155875 priority Critical patent/DE19955875A1/en
Publication of DE19955875A1 publication Critical patent/DE19955875A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00Spoked wheels; Spokes thereof
    • B60B1/06Wheels with compression spokes
    • B60B1/14Attaching spokes to rim or hub
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00Spoked wheels; Spokes thereof
    • B60B1/06Wheels with compression spokes
    • B60B1/10Wheels with compression spokes fabricated by sheet metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

The wheel has a rim (10), a hub (20), and spokes (30) formed from sheet metal with profiling (31) of some type at one point. This permits all spokes to be fitted without tension, and any loads to be accommodated without bending or bulging. The spokes are not positioned in the central plane of the wheel, but are offset from the center within the hub, so that a form-stable triangle is formed, which can accommodate lateral forces. All spokes are formed in one-part star shape, one for each side of a wheel. Opposite spokes are connected to each other and to the rim via a connection part (40), and the rim can be replaced without the spokes needing to be disconnected.

Description

Räder von Fahrzeugen werden insbesondere dann, wenn große Durchmesser, geringe Breiten von feigen und Reifen und geringe Ge­ wichte gefordert sind, wie z. B. bei Laufrädern für Fahrräder vorzugsweise aus einer Nabe, einer Felge und einer Vielzahl von Speichen gefertigt, wobei diese Speichen so vorgespannt werden, dass bei allen Betriebs­ zuständen die Stabilität der Rades durch Zugkräfte erholten ist, da bei auftretenden Druckkräften die Speichen wegen ihrer Geometrie durch Knickung zum Stabilitätsversagen geführt werden würden.Wheels of vehicles are used especially when large Diameter, narrow widths of figs and tires and small ge weights are required, such as B. preferably with wheels for bicycles made from a hub, a rim and a variety of spokes, these spokes are pre-tensioned so that all operating conditions the stability of the wheel is recovered by tensile forces, since at compressive forces occurring through the spokes due to their geometry Buckling would lead to stability failure.

Dieser Aufbau weist jedoch eine Vielzahl von Nachteilen auf, wie hohe Kraftspitzen durch die erforderliche Speichenspannung mit dadurch in­ duzierten Fließprozessen und Spannungsveränderungen, damit hoher Wartungsaufwand. Außerdem können solche Laufräder schlecht gerei­ nigt werden, da die Stellen zwischen den Speichen schwer erreichbar sind. Bei Verwendung des Rades als Bremsscheibe, indem die Bremsbe­ läge direkt auf den Felgenring greifen, entsteht zwangsläufig Verschleiß im Felgenmaterial, so dass die Felgen nach einiger Nutzungszeit ausge­ tauscht werden müssen. Dieser Tauschvorgang ist sehr aufwendig und teuer, da die Speichen in Werkstätten in der Regel manuell neu einge­ zogen und gleichmäßig gespannt werden müssen.However, this structure has a number of disadvantages, such as high Force peaks caused by the required spoke tension induced flow processes and stress changes, thus higher Maintenance effort. In addition, such wheels can be bad be used because the places between the spokes are difficult to reach are. When using the wheel as a brake disc by the brake If you touch the rim ring directly, wear is inevitable in the rim material, so that the rims expire after some time of use need to be exchanged. This exchange process is very complex and expensive, since the spokes in workshops are usually newly inserted manually pulled and tensioned evenly.

Versuche, Laufräder aus Guss zu fertigen waren bisher wenig erfolg­ reich, da wegen der Sprödbruchgefahr, der geringen spezifischen Fes­ tigkeit von Gussmaterialien und der Fließverhältnisse dicke Wandstärken und damit hohe Gewichte unvermeidbar waren.Attempts to manufacture cast wheels from cast iron have so far been unsuccessful rich because of the risk of brittle fracture, the low specific fes activity of cast materials and the flow conditions of thick walls and thus high weights were inevitable.

Die Erfindung löst dieses Problem, indem Speichen aus Blechen einzeln oder als kompletter Stern, bei dem mehrere Speichen miteinander ver­ bunden sind, gefertigt werden, z. B. durch Stanzen und Pressen, die dann Felge und Nabe verbinden.The invention solves this problem by making metal sheet spokes individually or as a complete star, in which several spokes ver are bound, manufactured, e.g. B. by punching and pressing then connect the rim and hub.

Diese Speichen sind dabei so gefertigt, dass sie durch umgebördelte Kanten, Sicken, Einzüge oder sphärische Verformung nicht nur Zug- son­ dern auch alle, zur funktionalen Sicherheit des Rades aufzunehmenden Lasten in Druckrichtung übertragen können, ohne dass durch Stabilitäts­ versagen wie Beulen oder Knicken unzulässige Verformungen oder Risse auftreten.These spokes are made so that they are flanged by Edges, beads, indentations or spherical deformation not just tensile but also all those to be included for the functional safety of the bike Loads can be transferred in the direction of pressure without causing stability like bulges or kinks, inadmissible deformations or cracks fail occur.

Die Verbindung zwischen Feige und Speichen ist dabei so ausgeführt, dass die Feige ausgewechselt werden kann, durch Lösen von Schrau­ ben, Steck- oder Klemmverbindungen oder durch Ausbohren von Nie­ ten, jedenfalls so, dass Speichen und Nabe weiter verwendet werden können.The connection between fig and spokes is made so that the fig can be replaced by loosening the screw  ben, plug or clamp connections or by never drilling at least in such a way that the spokes and hub can continue to be used can.

In einer bevorzugten Ausführung bleiben die Speichen durch ein Verbin­ dungsstück, das die jeweils gegenüberliegenden Speichen verbindet, auch bei Demontage der Felge formstabil, so dass der Rundlauf des Rades mit der neuen Feige ohne weiteres Nachrichten gewährleistet ist.In a preferred embodiment, the spokes remain connected piece that connects the opposite spokes, dimensionally stable even when the rim is removed, so that the concentricity of the Rades with the new fig is guaranteed without further news.

In einer weiteren Ausführung können die Speichen auf der Nabe ge­ spreizt werden, um Eigenspannungen aufzubauen oder Fertigungstole­ ranzen auszugleichen.In a further embodiment, the spokes can be placed on the hub be spread to build up residual stresses or manufacturing stole balance satchel.

Fig. 1 zeigt die Feige (10) und die Nabe (20) mit einer von 6 Halbspei­ chen (30), welche die Bördelungen (31) aufweist und mit den Verbin­ dungsstück (40) und den Bolzen (50) mit der nicht dargestellten, gegen­ überliegenden Halbspeiche verbunden ist. Das Verbindungsstück (40) weist außerdem noch nicht dargestellte Verbindungselemente als Bol­ zen, Schrauben, Niete o. ä. auf, mit denen Felge und Verbindungsstück verbunden werden. Fig. 1 shows the fig ( 10 ) and the hub ( 20 ) with one of 6 Halbspei chen ( 30 ), which has the flanges ( 31 ) and with the connec tion piece ( 40 ) and the bolt ( 50 ) with the not shown , is connected to the opposite half spoke. The connecting piece ( 40 ) also has connecting elements, not yet shown, as bolts, screws, rivets or the like, with which the rim and connecting piece are connected.

Claims (5)

1. Ein Rad für Fahrzeuge, insbesondere für Fahrräder, bestehend aus Nabe, Speichen und Felge, dadurch gekennzeichnet, dass die Speichen aus Blechen gefertigt sind und an mindestens einer Stei­ le Sicken, Einzüge, Bördelungen, sphärische Verformungen, Um­ kantungen oder sonstige Umformungen, Anformungen oder Aus­ formungen so vorweisen, dass die Speichen spannungsfrei mon­ tiert werden können und dass die für die Betriebssicherheit erforderlichen Lasten, die somit auch Druckspannungen in den Speichen erzeugen, ohne Stabilitätsversagen durch Knickung oder Beulung aufgenommen werden können.1. A wheel for vehicles, in particular for bicycles, consisting of a hub, spokes and rim, characterized in that the spokes are made of sheet metal and have beads, indents, flanges, spherical deformations, edging or other deformations on at least one part. Show formings or formations in such a way that the spokes can be installed without tension and that the loads required for operational safety, which therefore also generate compressive stresses in the spokes, can be absorbed without stability failure due to buckling or buckling. 2. Ein Rad nach einem oder mehreren der vorhergehenden Ansprü­ che, dadurch gekennzeichnet, dass die Speichen nicht in der Mit­ telebene des Rades liegen, sondern dass die Speichen seitlich in der Nabe aus der Mitte versetzt angeordnet sind und so im Schnitt ein formstabiles Dreieck bilden, das auch Seitenkräfte aufnehmen kann.2. A wheel according to one or more of the preceding claims che, characterized in that the spokes are not in the Mit tel plane of the wheel, but that the spokes laterally in the hub are offset from the center and so in section form a stable triangle that also absorbs lateral forces can. 3. Ein Rad nach einem oder mehreren der vorhergehenden Ansprü­ che, dadurch gekennzeichnet, dass die Speichen als Stern für je eine Seite des Rades in einem Stück gefertigt werden.3. A wheel according to one or more of the preceding claims che, characterized in that the spokes as a star for each one side of the wheel can be made in one piece. 4. Ein Rad nach einem oder mehreren der vorhergehenden Ansprü­ che, dadurch gekennzeichnet dass die jeweils gegenüberliegen­ den Speichen durch ein Verbindungsstück miteinander und mit der Feige verbunden werden und dass die Felge gewechselt wer­ den kann, ohne die Speichen voneinander zu trennen.4. A wheel according to one or more of the preceding claims che, characterized in that they are opposite each other the spokes through a connector with each other and with the fig are connected and that the rim is changed can do this without separating the spokes. 5. Ein Rad nach einem oder mehreren der vorhergehenden Ansprü­ che, dadurch gekennzeichnet, dass der seitliche Winkel der Spei­ chen variiert werden kann, die Speichen auf der Nabe also seitlich gespreizt werden können, um so Fertigungstoleranzen auszuglei­ chen und/oder Eigenspannungen in den Speichen zu erzeugen.5. A wheel according to one or more of the preceding claims che, characterized in that the lateral angle of the spoke Chen can be varied, the spokes on the hub so sideways can be spread to compensate for manufacturing tolerances Chen and / or generate internal stresses in the spokes.
DE1999155875 1999-11-20 1999-11-20 Wheel with bending-resistant spokes, for bicycles etc. has spokes formed from sheet metal with profiling, in a one-piece star part, one for each side of a wheel Ceased DE19955875A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999155875 DE19955875A1 (en) 1999-11-20 1999-11-20 Wheel with bending-resistant spokes, for bicycles etc. has spokes formed from sheet metal with profiling, in a one-piece star part, one for each side of a wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999155875 DE19955875A1 (en) 1999-11-20 1999-11-20 Wheel with bending-resistant spokes, for bicycles etc. has spokes formed from sheet metal with profiling, in a one-piece star part, one for each side of a wheel

Publications (1)

Publication Number Publication Date
DE19955875A1 true DE19955875A1 (en) 2001-05-31

Family

ID=7929731

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999155875 Ceased DE19955875A1 (en) 1999-11-20 1999-11-20 Wheel with bending-resistant spokes, for bicycles etc. has spokes formed from sheet metal with profiling, in a one-piece star part, one for each side of a wheel

Country Status (1)

Country Link
DE (1) DE19955875A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347318C (en) * 1918-07-01 1922-01-19 Henry Daniel Rey Spoke disc wheel with split rim
DE2715703A1 (en) * 1976-04-08 1977-10-20 Honda Motor Co Ltd VEHICLE WHEEL
DE2947120A1 (en) * 1978-11-22 1980-06-19 Honda Motor Co Ltd VEHICLE WHEEL, ESPECIALLY FOR MOTORCYCLES
DD211318A1 (en) * 1982-11-10 1984-07-11 Thaelmann Fahrzeug Jagdwaffen VEHICLE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347318C (en) * 1918-07-01 1922-01-19 Henry Daniel Rey Spoke disc wheel with split rim
DE2715703A1 (en) * 1976-04-08 1977-10-20 Honda Motor Co Ltd VEHICLE WHEEL
DE2947120A1 (en) * 1978-11-22 1980-06-19 Honda Motor Co Ltd VEHICLE WHEEL, ESPECIALLY FOR MOTORCYCLES
DD211318A1 (en) * 1982-11-10 1984-07-11 Thaelmann Fahrzeug Jagdwaffen VEHICLE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 54-65901 A, In: Patents Abstr. of Japan, Sect. M. Vol. 3 (1979), Nr. 88 (M-76) *

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection