DE102012017690A1 - Back pedaling brake for bicycles, in which idle path of pedals is in driving direction after completion of withdrawal braking and before start of propulsion of airing hub for wheel brake, and rotatable ring is connected to freewheel gear - Google Patents
Back pedaling brake for bicycles, in which idle path of pedals is in driving direction after completion of withdrawal braking and before start of propulsion of airing hub for wheel brake, and rotatable ring is connected to freewheel gear Download PDFInfo
- Publication number
- DE102012017690A1 DE102012017690A1 DE201210017690 DE102012017690A DE102012017690A1 DE 102012017690 A1 DE102012017690 A1 DE 102012017690A1 DE 201210017690 DE201210017690 DE 201210017690 DE 102012017690 A DE102012017690 A DE 102012017690A DE 102012017690 A1 DE102012017690 A1 DE 102012017690A1
- Authority
- DE
- Germany
- Prior art keywords
- brake
- bicycles
- bottom bracket
- freewheel
- braking
- 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.)
- Withdrawn
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L5/00—Brakes, or actuating mechanisms therefor, controlled by back-pedalling
- B62L5/003—Brakes, or actuating mechanisms therefor, controlled by back-pedalling the brakes being arranged apart from the rear wheel hub
Abstract
Description
Die Erfindung betrifft eine Rücktrittbremse für Fahrräder mit Freilaufnabe am Hinterrad und mit mindestens einer Radbremse, die vom Tretlager aus betätigt wird, wobei am oder im Tretlager ein Freilaufgetriebe vorgesehen ist. Die Radbremse ist an einen im Tretlagerbereich drehbar gelagerten Ring angeschlossen, der mit der Abtriebsseite des Freilaufgetriebes verbunden ist.The invention relates to a coaster brake for bicycles with freewheel hub on the rear wheel and with at least one wheel brake, which is actuated from the bottom bracket, wherein on or in the bottom bracket a freewheel gear is provided. The wheel brake is connected to a rotatably mounted in the bottom bracket ring, which is connected to the output side of the freewheel gear.
Eine solche Vorrichtung ist aus der
Der Erfindung liegt deshalb die Aufgabe zugrunde, an einer Rücktrittbremse eine automatische Lösung der Bremse(n) des Fahrrades vorzusehen, die einen unproblematischen Übergang zum Vortrieb nach einem Bremsmanöver mit dem Rücktritt erlaubt.The invention is therefore based on the object to provide on a coaster brake an automatic solution of the brake (s) of the bicycle, which allows an unproblematic transition to propulsion after a braking maneuver with the resignation.
Die Lösung dieser Aufgabe ist im Anspruch 1 wiedergegeben.The solution to this problem is given in claim 1.
In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass der Leerweg beim Zurücktreten der Pedalen von einer Feder aufgespannt wird, so dass sich eine Vorspannung in Rücktrittrichtung ergibt, die bei ungebremster Vorwärtsfahrt überwunden wird.In a preferred embodiment of the invention, it is provided that the free travel is stretched when receding the pedals by a spring, so that there is a bias in the return direction, which is overcome in unrestrained forward travel.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass zur Bildung des Leerweges auf der Antriebsseite der oder die Tretlagerzahnkränze gegenüber den Pedalarmen um einen Winkel < 45° schwenkbar sind.In a further embodiment of the invention, it is provided that the formation of the free travel on the drive side or the bottom bracket ring gears with respect to the pedal arms by an angle <45 ° are pivotally.
Eine weitere Ausgestaltung der Erfindung ist in einer Verschwenkung zwischen mindestens zwei teilweise der Bewegung der Pedalarme folgenden Anschlägen zu sehen.A further embodiment of the invention can be seen in a pivoting between at least two partial following the movement of the pedal arms attacks.
In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass der eine/die einen Anschläge die Vortriebskraft beim Vorwärtstreten übertragen und der andere/die anderen Anschläge die Bremskraft des Rücktritts übertragen.In a preferred embodiment of the invention, it is provided that one / the stops transmit the propulsion force during the forward step and the other / the other stops transmit the braking force of the resignation.
Nach einem ergänzenden Merkmal der Erfindung ist vorgesehen, dass das Freilaufgetriebe in oder am Tretlager als Klemmrollenfreilauf ausgebildet ist. Das Klemmrollen-Freilaufgetriebe arbeitet praktisch spielfrei und geräuschlos.According to a supplementary feature of the invention it is provided that the freewheel gear is formed in or on the bottom bracket as a clamping roller freewheel. The pinch roller freewheel gear works practically backlash-free and noiseless.
Um einen kleinen Rücktrittweg zu haben genügt bei genauer Fertigung der Teile, dass der mögliche Schwenkwinkel zwischen den Zahnkränzen am Tretlager und den Pedalarmen < 25° ist.In order to have a small return path, it is sufficient with accurate production of the parts that the possible swivel angle between the sprockets on the bottom bracket and the pedal arms is <25 °.
In weiterer Ausgestaltung der Erfindung wird vorgeschlagen, dass der Schwenkwinkel von einander gegenüberliegenden Innenwandungen eines Loches in dem oder den Zahnrädern am Tretlager bestimmt wird, in das ein Zapfen am Pedalarm eingreift oder umgekehrt.In a further embodiment of the invention, it is proposed that the pivot angle of opposing inner walls of a hole in the one or more gears is determined at the bottom bracket, engages in the pin on the pedal arm or vice versa.
Die Erfindung wird im Einzelnen anhand der Zeichnung erläutert, dabei zeigen:The invention will be explained in detail with reference to the drawing, in which:
Die in
Das Freilaufgetriebe
Der Ring
In
Damit der Leerweg
Alle beschriebenen oder bildlich dargestellten Merkmale bilden für sich oder in beliebiger sinnvoller Kombination den Gegenstand der Erfindung, auch unabhängig von ihrer Zusammenfassung in den Ansprüchen oder deren Rückbeziehung.All described or illustrated features form the subject of the invention, alone or in any meaningful combination, regardless of their combination in the claims or their dependency.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 1965616 U1 [0002] DE 1965616 U1 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210017690 DE102012017690A1 (en) | 2012-09-07 | 2012-09-07 | Back pedaling brake for bicycles, in which idle path of pedals is in driving direction after completion of withdrawal braking and before start of propulsion of airing hub for wheel brake, and rotatable ring is connected to freewheel gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210017690 DE102012017690A1 (en) | 2012-09-07 | 2012-09-07 | Back pedaling brake for bicycles, in which idle path of pedals is in driving direction after completion of withdrawal braking and before start of propulsion of airing hub for wheel brake, and rotatable ring is connected to freewheel gear |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012017690A1 true DE102012017690A1 (en) | 2014-04-03 |
Family
ID=50276040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210017690 Withdrawn DE102012017690A1 (en) | 2012-09-07 | 2012-09-07 | Back pedaling brake for bicycles, in which idle path of pedals is in driving direction after completion of withdrawal braking and before start of propulsion of airing hub for wheel brake, and rotatable ring is connected to freewheel gear |
Country Status (1)
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DE (1) | DE102012017690A1 (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH231853A (en) * | 1942-06-20 | 1944-04-15 | Trost Ernst | Coaster brake device on bicycles. |
DE1965616U (en) | 1967-02-01 | 1967-08-03 | Josef Miesch | ALL-WHEEL-ACTING, LOCKABLE TWO-WHEEL REAR DISC BRAKE. |
US3888334A (en) * | 1974-06-27 | 1975-06-10 | Richard B Mack | Bicycle pedal-actuated brake and freewheel system |
US4134481A (en) * | 1974-12-09 | 1979-01-16 | Calderazzo Franklin J | Back-pedal brake operator and braking system for multi-speed bicycles |
DE2934588A1 (en) * | 1978-08-28 | 1980-03-13 | Edwin Earl Foster | PEDAL ACTUATED BRAKE CONTROL DEVICE FOR BICYCLES |
US4583422A (en) * | 1982-09-20 | 1986-04-22 | Winnett Boyd | Pedal crank and chain wheel assembly for bicycles |
WO1996029236A1 (en) * | 1995-03-17 | 1996-09-26 | Sarun Holdings Limited | Improved brakes for bicycles and other chain driven mechanisms |
WO1998030433A1 (en) * | 1997-01-09 | 1998-07-16 | Sarun Holdings Limited | Improved bicycle braking system |
DE102010025108A1 (en) * | 2010-06-25 | 2011-12-29 | Joachim Trommlitz | Coaster brake for use as e.g. parking brake for bicycle, has brake lever arranged in flow of power direction at output of freewheel and behind driven connection, where brake lever is attached to wheel brakes |
-
2012
- 2012-09-07 DE DE201210017690 patent/DE102012017690A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH231853A (en) * | 1942-06-20 | 1944-04-15 | Trost Ernst | Coaster brake device on bicycles. |
DE1965616U (en) | 1967-02-01 | 1967-08-03 | Josef Miesch | ALL-WHEEL-ACTING, LOCKABLE TWO-WHEEL REAR DISC BRAKE. |
US3888334A (en) * | 1974-06-27 | 1975-06-10 | Richard B Mack | Bicycle pedal-actuated brake and freewheel system |
US4134481A (en) * | 1974-12-09 | 1979-01-16 | Calderazzo Franklin J | Back-pedal brake operator and braking system for multi-speed bicycles |
DE2934588A1 (en) * | 1978-08-28 | 1980-03-13 | Edwin Earl Foster | PEDAL ACTUATED BRAKE CONTROL DEVICE FOR BICYCLES |
US4583422A (en) * | 1982-09-20 | 1986-04-22 | Winnett Boyd | Pedal crank and chain wheel assembly for bicycles |
WO1996029236A1 (en) * | 1995-03-17 | 1996-09-26 | Sarun Holdings Limited | Improved brakes for bicycles and other chain driven mechanisms |
WO1998030433A1 (en) * | 1997-01-09 | 1998-07-16 | Sarun Holdings Limited | Improved bicycle braking system |
DE102010025108A1 (en) * | 2010-06-25 | 2011-12-29 | Joachim Trommlitz | Coaster brake for use as e.g. parking brake for bicycle, has brake lever arranged in flow of power direction at output of freewheel and behind driven connection, where brake lever is attached to wheel brakes |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |