DE350724C - Protective device against jumping out of the chain - Google Patents

Protective device against jumping out of the chain

Info

Publication number
DE350724C
DE350724C DENDAT350724D DE350724DD DE350724C DE 350724 C DE350724 C DE 350724C DE NDAT350724 D DENDAT350724 D DE NDAT350724D DE 350724D D DE350724D D DE 350724DD DE 350724 C DE350724 C DE 350724C
Authority
DE
Germany
Prior art keywords
chain
protective device
jumping out
device against
spokes
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.)
Expired
Application number
DENDAT350724D
Other languages
German (de)
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.)
PAUL FIEDERMANN
Original Assignee
PAUL FIEDERMANN
Publication date
Application granted granted Critical
Publication of DE350724C publication Critical patent/DE350724C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Description

Schutzvorrichtung gegen Herausspringen der Kette. Beim Radfahren kommt es oft vor, namentlich beim Fahren von Kurven, daß die Kette vom hinteren Kettenrad abspringt und gegen die Speichen des Hinterrades schlägt, wobei in der Regel mehrere derselben zerrissen werden. Ferner klemmt sich die Kette dann oft zwischen Zahnkranz und Rad fest und kann nur schwer gelöst werden, oder sie zerreißt dabei.Protection device against jumping out of the chain. When cycling comes it often happens, especially when cornering, that the chain is removed from the rear sprocket jumps off and hits the spokes of the rear wheel, usually several the same are torn. Furthermore, the chain then often gets stuck between the sprocket and wheel tight and difficult to loosen or it will tear.

Der Zweck der vorliegenden Erfindung ist, diese Übelstände zu beseitigen. Das Wesen der Erfindung besteht darin, daß zwischen Zahnkranz und Rad ein scheibenförmiges Schutzblech gebracht ist, dessen Form ein Abspringen der Kette nach der Radseite hin verhindert. Es ist zwar schon eine Vorrichtung, die ein Abspringen der Kette verhütet, bekannt. Diese erfordert jedoch eine besondere Ausbildung des Kettenrades, so daß das übliche Kettenrad dort nicht mehr verwendet werden kann.The purpose of the present invention is to remedy these inconveniences. The essence of the invention is that between the ring gear and the wheel a disk-shaped Mudguard is brought, the shape of which a jumping off the chain to the wheel side prevented. Although it is a device that makes the chain jump off prevent, known. However, this requires a special design of the sprocket, so that the usual sprocket can no longer be used there.

Auf der beiliegenden Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt, und zwar zeigt Abb. x eine Vorderansicht, Abb. 2 eine Seitenansicht, Abb. 3 die Schutzvorrichtung am Fahrrad, Abb. q. und 5 je eine besondere Ausführungsform.The subject of the invention is shown in the accompanying drawing, for example shown, namely Fig. x shows a front view, Fig. 2 is a side view, Fig. 3 the protective device on the bicycle, Fig. Q. and 5 each a special embodiment.

Das Schutzblech besteht aus einem Eisen-oder Stahlblechring a, der in der Mitte ein Loch b aufweist, Dieses Loch ist so groß, daß der Ring a auf den Gewindeansatz der Radnabe c aufgeschoben und durch das aufschraubbare Kettenrad d festgeklemmt werden kann. Nach dem Umfang zu ist das Blech a leicht gegen die Speichen e abgebogen. Dies hat die Wirkung, daß die herausgesprungene Kette an der konischen Fläche abgleitet und in den Zahnkranz d zurückgeworfen wird.The fender consists of an iron or sheet steel ring a, the has a hole b in the middle, this hole is so large that the ring a on the Threaded attachment of the wheel hub c pushed on and through the screw-on sprocket d can be clamped. According to the circumference, the sheet a is slightly against the Spokes bent e. This has the effect that the popped chain is attached to the conical surface and is thrown back into the ring gear d.

Vorteilhaft weist der Schutzring a zur Versteifung noch eine eingeprägte Ringnut f auf. Nach Abb. q. besitzt das Schutzblech a an seiner dem Rade zugewendeten Seite drei oder mehrere Klemmstücke g, welche durch Schrauben h so angezogen werden können, daß das Blech a von den dazwischengeklemmten Speichen e festgehalten wird.The protective ring a advantageously also has an embossed one for reinforcement Ring groove f. According to Fig.q. has the fender a on its facing the wheel Side three or more clamping pieces g, which are tightened by screws h can that the sheet a is held by the clamped spokes e.

Gemäß Abb. 5 ist das Schutzblech a mittels Schrauben i an den Zahnkranz k unmittelbar angeschraubt.According to Fig. 5, the protective plate a is screwed directly to the ring gear k by means of screws i.

Claims (3)

PATENTANSPRÜCHE: x. Schutzvorrichtung gegen Herausspringen der Kette an Fahrrädern, dadurch gekennzeichnet, daß dieselbe aus einer zwischen Hinterrad und Zahnkranz d auf die Nabe c aufzuschiebenden Blechscheibe a besteht, welche nach dem Umfang zu gegen die Speichen e leicht konisch abgebogen ist und eine eingeprägte ringförmige Rippe aufweist. PATENT CLAIMS: x. Protection device against jumping out of the chain on bicycles, characterized in that the same consists of a sheet metal disc a to be pushed onto the hub c between the rear wheel and the ring gear d, which is slightly bent conically towards the spokes e and has an embossed annular rib. 2. Ausführungsform der Schutzvorrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Scheibe an den Speichen e befestigt ist. 2. Embodiment of the protective device according to claim i, characterized in that the disc is attached to the spokes e. 3. Ausführungsform der Schutzvorrichtung nach Anspruch z, dadurch gekennzeichnet, daß dieselbe am Zahnkranz befestigt ist.3rd embodiment the protective device according to claim z, characterized in that the same on the ring gear is attached.
DENDAT350724D Protective device against jumping out of the chain Expired DE350724C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE350724T

Publications (1)

Publication Number Publication Date
DE350724C true DE350724C (en) 1922-03-23

Family

ID=6263903

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT350724D Expired DE350724C (en) Protective device against jumping out of the chain

Country Status (1)

Country Link
DE (1) DE350724C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915181A1 (en) * 1978-04-14 1979-10-25 Shimano Industrial Co REAR HUB FOR A BICYCLE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915181A1 (en) * 1978-04-14 1979-10-25 Shimano Industrial Co REAR HUB FOR A BICYCLE

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