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 wheelInfo
- 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
Links
- 239000002184 metal Substances 0.000 title claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 4
- 238000005452 bending Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007688 edging Methods 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- 238000009740 moulding (composite fabrication) Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B1/00—Spoked wheels; Spokes thereof
- B60B1/06—Wheels with compression spokes
- B60B1/14—Attaching spokes to rim or hub
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B1/00—Spoked wheels; Spokes thereof
- B60B1/06—Wheels with compression spokes
- B60B1/10—Wheels with compression spokes fabricated by sheet metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
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)
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)
| 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 |
-
1999
- 1999-11-20 DE DE1999155875 patent/DE19955875A1/en not_active Ceased
Patent Citations (4)
| 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)
| 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 |