DE102018119261A1 - Bicycle with manual transmission - Google Patents
Bicycle with manual transmission Download PDFInfo
- Publication number
- DE102018119261A1 DE102018119261A1 DE102018119261.4A DE102018119261A DE102018119261A1 DE 102018119261 A1 DE102018119261 A1 DE 102018119261A1 DE 102018119261 A DE102018119261 A DE 102018119261A DE 102018119261 A1 DE102018119261 A1 DE 102018119261A1
- Authority
- DE
- Germany
- Prior art keywords
- bicycle
- wheel
- wheel hub
- rotatably mounted
- pedal
- 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
- 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
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- 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
- B62M1/00—Rider propulsion of wheeled vehicles
- B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
- B62M1/38—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks for directly driving the wheel axle
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- 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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/60—Rider propelled cycles with auxiliary electric motor power-driven at axle parts
-
- 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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/70—Rider propelled cycles with auxiliary electric motor power-driven at single endless flexible member, e.g. chain, between cycle crankshaft and wheel axle, the motor engaging the endless flexible member
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
Fahrrad (100) mit wenigstens einem an einem Fahrradrahmen (10) mittels einer Radnabe (20) drehbar gelagerten Rad (30) und einem Schaltgetriebe (40), dadurch gekennzeichnet, dass das Schaltgetriebe (40) antriebsseitig mittels eines ersten Zugmittels (50) mit einer in oder an der Radnabe (20) des wenigstens einen Rads (30) drehbar gelagerten Tretkurbel (60) und abtriebsseitig mittels eines zweiten Zugmittels mit der Radnabe (20) das Rad antreibend (30) verbunden ist.Bicycle (100) with at least one wheel (30) rotatably mounted on a bicycle frame (10) by means of a wheel hub (20) and a gearbox (40), characterized in that the gearbox (40) on the drive side by means of a first traction means (50) a pedal crank (60) rotatably mounted in or on the wheel hub (20) of the at least one wheel (30) and connected to the wheel hub (20) driving (30) the wheel by means of a second traction means.
Description
Die Erfindung betrifft ein Fahrrad mit wenigstens einem an einem Fahrradrahmen mittels einer Radnabe drehbar gelagerten Rad und einem Schaltgetriebe.The invention relates to a bicycle with at least one wheel rotatably mounted on a bicycle frame by means of a wheel and a gearbox.
Derartige Fahrräder sind allgemein und in einer Fülle von speziellen Ausgestaltungen bekannt. Neben dem Aspekt der Fortbewegung werden Fahrräder auch unter ergonomischen Gesichtspunkten und hinsichtlich der Steigerung körperlicher Fitness entwickelt und angeboten. Beispielsweise ist ein als „Chainless S1“ bezeichnetes Fahrrad bekannt geworden, das ohne Fahrradkette auskommt, indem der Antrieb des Fahrrads durch im Hinterrad des Fahrrads integrierte Tretkurbeln erfolgt. Bei anderen Fahrrädern, insbesondere Liegefahrrädern ist es hingegen bekannt, die Tretkubeln im Vorderrad zu integrieren, ohne dass eine Antriebskette notwendig wäre.Such bicycles are well known in the art and in a variety of special configurations. In addition to the aspect of locomotion bicycles are also developed and offered under ergonomic aspects and in terms of increasing physical fitness. For example, a bicycle called "Chainless S1" has become known, which does not require a bicycle chain, in that the bicycle is driven by cranks integrated in the rear wheel of the bicycle. In other bicycles, especially recumbents, however, it is known to integrate the Tretkubeln in the front wheel, without a drive chain would be necessary.
Beide Konstruktionen benötigen für einen geeigneten Antrieb in der Achse der Räder verbaute Planetengetriebe, der Einbau und Pflege sehr aufwändig ist. Darüber hinaus ist die Auswahl geeigneter Übersetzungen aufgrund des geringen Bauraums sehr gering, sodass die bekannten Fahrräder hinsichtlich deren Ergonomie beschränkt sind. Schließlich können mit zunehmenden Trainingseffekt Anpassungen am Fahrrad nicht ohne weiteres vorgenommen werden,Both constructions require for a suitable drive in the axle of the wheels built planetary gear, the installation and maintenance is very complex. In addition, the selection of suitable translations due to the small space is very low, so that the known bicycles are limited in terms of their ergonomics. Finally, with increasing training effect adjustments to the bike can not be readily made,
Aufgabe der Erfindung ist es daher, ein Fahrrad mit einem Schaltgetriebe zu schaffen, das einfach herzustellen, zu warten und gegebenenfalls zu modifizieren ist, wobei das Fahrrad insbesondere auch als Liegefahrrad geeignet sein soll.The object of the invention is therefore to provide a bicycle with a manual transmission, which is easy to manufacture, maintain and optionally modify, the bicycle should be particularly suitable as a recumbent bike.
Diese Aufgabe wird erfindungsgemäß durch das Fahrrad mit den Merkmalen von Anspruch 1 gelöst. Die Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung wieder.This object is achieved by the bicycle with the features of claim 1. The subclaims reflect advantageous embodiments of the invention.
Grundgedanke der Erfindung ist es, die Tretkurbeln des Fahrrads nicht - wie bekannt - am unteren Ende des Sattelrohrs zu lagern, sondern in der Nabe eines Rads, speziell des Vorderrads. Dabei sind die Tretkurbeln nicht - wie bei herkömmlichen Einrädern bekannt - einen Direktantrieb des Rads bewirkend direkt mit der Radnabe verbunden, sondern zum Rad relativ drehbar an oder innerhalb der Radnabe gelagert.The basic idea of the invention is not to support the cranks of the bicycle - as is known - at the lower end of the seat tube, but in the hub of a wheel, especially the front wheel. The cranks are not - as in conventional unicycles known - a direct drive of the wheel causing directly connected to the wheel hub, but mounted to the wheel relatively rotatable on or within the wheel hub.
Der Antrieb des Rads kommt nun dadurch zustande, dass eine Tretkurbel mittels eines ersten Zugmittels mit dem Antrieb eines außerhalb des Rads angeordneten Schaltgetriebes verbunden ist, dessen Abtrieb mittels eines zweiten Zugmittels mit der Radnabe des Rads verbunden ist. Durch Drehung der Tretkurbel wird also mit Hilfe des Getriebes und der beiden Zugmittel mittelbar ein Antrieb des Rads und somit dessen Drehung bewirkt.The drive of the wheel now comes about that a pedal crank is connected by means of a first traction means with the drive of a gearbox arranged outside the wheel, the output of which is connected by means of a second traction means with the wheel hub of the wheel. By rotation of the crank so indirectly with the help of the transmission and the two traction means a drive of the wheel and thus its rotation is effected.
Erfindungsgemäß wird also ein Fahrrad mit wenigstens einem an einem Fahrradrahmen mittels einer Radnabe drehbar gelagerten Rad und mit einem Schaltgetriebe vorgeschlagen, bei dem das Schaltgetriebe antriebsseitig mittels eines ersten Zugmittels mit einer in oder an der Radnabe des wenigstens einen Rads drehbar gelagerten Tretkurbel und abtriebsseitig mittels eines zweiten Zugmittels mit der Radnabe das Rad antreibend verbunden ist.According to the invention, therefore, a bicycle is proposed with at least one rotatably mounted on a bicycle frame by means of a wheel hub and a gearbox, wherein the transmission on the drive side by means of a first traction means with a rotatably mounted in or on the wheel hub of the at least one pedal crank on the output side by means of a second traction means with the wheel hub, the wheel is drivingly connected.
Das Schaltgetriebe ist bevorzugt als Kettenschaltung ausgebildet, wobei das erste Zugmittel und das zweite Zugmittel entsprechend als Rollenkette ausgestaltet sind.The gearbox is preferably designed as a derailleur, wherein the first traction means and the second traction means are configured accordingly as a roller chain.
Die Tretkurbel ist insbesondere als Tretkurbelpaar ausgebildet, wobei die die Tretkurbeln verbindende Tretkurbelwelle in der Radnabe drehbar gelagert ist. Nach einer weiteren bevorzugten Ausgestaltung ist die Tretkurbelwelle speziell als die das Rad am Fahrradrahmen drehbar lagernde Welle ausgebildet.The pedal crank is especially designed as a pair of pedal blocks, wherein the pedal cranks connecting pedal crankshaft is rotatably mounted in the wheel hub. According to a further preferred embodiment, the pedal crankshaft is designed specifically as the wheel rotatably supporting the wheel on the bicycle frame.
Das Schaltgetriebe ist bevorzugt direkt am Fahrradrahmen befestigt. Alternativ kann aber auch eine das Schaltgetriebe lagernde, sich am Fahrradrahmen im Bereich der Radnabe abstützende Halterung vorgesehen sein.The transmission is preferably attached directly to the bicycle frame. Alternatively, however, it is also possible to provide a holder which supports the gearbox and is supported on the bicycle frame in the region of the wheel hub.
Weiter ist bevorzugt vorgesehen, dass das die Tretkurbel lagernde Rad das Vorderrad eines wenigstens zwei Räder aufweisenden Fahrrads ist, wobei das Vorderrad insbesondere im Fahrradrahmen drehbar gelagert und mit einem Lenker verbunden ist.Further, it is preferably provided that the pedal bearing the pedal is the front wheel of a bicycle having at least two wheels, wherein the front wheel is rotatably mounted in particular in the bicycle frame and connected to a handlebar.
Schließlich kann die Erfindung besonders vorteilhaft genutzt werden, wenn das Fahrrad als Liegefahrrad ausgebildet ist, da durch Ausgestaltung des Fahrrads als Liegefahrrad eine besonders vorteilhafte ergonomische Handhabung erreicht werden kann.Finally, the invention can be used particularly advantageously when the bicycle is designed as a recumbent bicycle, since a particularly advantageous ergonomic handling can be achieved by designing the bicycle as a recumbent bike.
Die Erfindung wird im Folgenden anhand eines in der beigefügten Zeichnung dargestellten, besonders bevorzugt ausgestalteten Ausführungsbeispiels näher erläutert, wobei
Das Fahrrad
Dabei weist eine Tretkurbel
Die das Schaltgetriebe
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202018002773 | 2018-06-06 | ||
DE202018002773.1 | 2018-06-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102018119261A1 true DE102018119261A1 (en) | 2019-12-12 |
Family
ID=68651485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018119261.4A Ceased DE102018119261A1 (en) | 2018-06-06 | 2018-08-08 | Bicycle with manual transmission |
Country Status (1)
Country | Link |
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DE (1) | DE102018119261A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1199352A (en) * | 1984-10-01 | 1986-01-14 | Gilles Rioux | Front wheel drive cycle |
DE19736266A1 (en) * | 1997-08-15 | 1999-02-25 | Thomas Dipl Ing Kretschmer | Prone bicycle with front wheel propulsion and front wheel steering |
US20060237945A1 (en) * | 2005-04-08 | 2006-10-26 | Hauer Jerome E | Common axis drive and shift system |
DE102011012049A1 (en) * | 2011-02-22 | 2012-08-23 | Peter Flack | Wheel drive for use in e.g. single-lane recumbent bicycle, has cranks fastened at pedal bearing shaft, where force is transferred for forward movement of drive hub by cranks through traction mechanisms, chains and toothed belts |
-
2018
- 2018-08-08 DE DE102018119261.4A patent/DE102018119261A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1199352A (en) * | 1984-10-01 | 1986-01-14 | Gilles Rioux | Front wheel drive cycle |
DE19736266A1 (en) * | 1997-08-15 | 1999-02-25 | Thomas Dipl Ing Kretschmer | Prone bicycle with front wheel propulsion and front wheel steering |
US20060237945A1 (en) * | 2005-04-08 | 2006-10-26 | Hauer Jerome E | Common axis drive and shift system |
DE102011012049A1 (en) * | 2011-02-22 | 2012-08-23 | Peter Flack | Wheel drive for use in e.g. single-lane recumbent bicycle, has cranks fastened at pedal bearing shaft, where force is transferred for forward movement of drive hub by cranks through traction mechanisms, chains and toothed belts |
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Date | Code | Title | Description |
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R012 | Request for examination validly filed | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |