DE822054C - Bicycle change transmission with chain switching - Google Patents

Bicycle change transmission with chain switching

Info

Publication number
DE822054C
DE822054C DEH4693A DEH0004693A DE822054C DE 822054 C DE822054 C DE 822054C DE H4693 A DEH4693 A DE H4693A DE H0004693 A DEH0004693 A DE H0004693A DE 822054 C DE822054 C DE 822054C
Authority
DE
Germany
Prior art keywords
chain
wheel
change transmission
switching
arm
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
DEH4693A
Other languages
German (de)
Inventor
Heimfried Heller
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.)
HEIMFRIED HELLER
Original Assignee
HEIMFRIED HELLER
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 HEIMFRIED HELLER filed Critical HEIMFRIED HELLER
Priority to DEH4693A priority Critical patent/DE822054C/en
Application granted granted Critical
Publication of DE822054C publication Critical patent/DE822054C/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
    • B62M9/12—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 the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/124—Mechanisms for shifting laterally
    • 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
    • B62M9/12—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 the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/124—Mechanisms for shifting laterally
    • B62M2009/12413—Rear derailleur comprising telescoping mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Description

Die Erfindung betrifft ein Wechselgetriebe für Fahrräder mit Kettenumschaltung zwischen verschieden großen Antriebskettenrädern der Radnabe. Das erfindungsgemäße Wechselgetriebe ist entwickelt auf der Suche nach einem möglichst einfachen und billig herzustellenden Aufbau und in dem Bestreben, die Kettenführung möglichst nahe an die Kettenräder der Radnabe heranzubringen, wodurch ein unbedingt sicheres Schalten gewährleistet wird.The invention relates to a change gear for bicycles with chain switching between different sized drive sprockets of the wheel hub. The inventive Change gear is developed in search of a simple and as possible cheap to manufacture structure and in an effort to improve the chain guide as possible Bring it close to the sprockets of the wheel hub, which makes it absolutely safe Switching is guaranteed.

Die Erfindung besteht darin, daß die seitliche Verschiebbarkeit des das Kettenschaltrad und den schwenkbaren Spannarm mit Kettenspannrad tragenden,iebenfalls schwenkbaren Schalterarmes durch einen am Fahrradgestell gelagerten Winkelhebel gegen Federkraft erfolgt. Bei Hinterradausbau wird dann nur der den Winkelhebel betätigende Bowdenzug ausgehängt, wodurch der Ausbau sehr einfach wird.The invention consists in that the lateral displacement of the the chain ratchet wheel and the swiveling tensioning arm with chain tensioning wheel, as well swiveling switch arm by an angle lever mounted on the bicycle frame takes place against spring force. When the rear wheel is removed, only the angle lever is then used actuating Bowden cable unhooked, which makes it very easy to remove.

Die Erfindung wird an Hand der Zeichnung in einem Ausführungsbeispiel erläutert. Nach Abb. i und 2 wixd mit einer Grundplatte, die an den Lageraugen des Armes der Hintergabel gleichzeitig mit der Radnabe verschraubt ist, ein quer gerichtetes Stahlrohr starr befestigt, in dem ein zweites von gleicher Länge gleitet. Mit dem inneren Rohr ist der Schaltarm fest verbunden. Dieser trägt an seinem anderen Ende einen Bolzen, auf dem das Kettenschaltrad und der Spannarm drehbar gelagert sind. Die Länge des Bolzens ist durch Muttern einstellbar. Die Spannfeder des Spannarmes ist gegen den Schaltarm abgestützt. Kettenspannrad und Kettenschaltrad sind zwei gleiche auf Kugeln laufende Kettenräder (w = io, t ='/="). Das hettenschaltrad trägt eine Kettenabwurfsicherung.Auf dem äußeren Stahlrohr ist der als Rohrschelle ausgebildete Träger für den Winkelhebel, das lj'o\\-denzugwiderlager und den Schaltbegrenzungshaken aufgeschraubt, der je nach der Zahl der Antriebskettenrä der verschoben werden kann; entsprechende Marken sind auf dem Stahlrohr anzubringen. Dieser Träger dient gleichzeitig zusammen mit einer Nase des Schaltarmes als Begrenzung für dessen Bewegung nach oben. Der Träger ist so zu drehen, daß das Kettenschaltrad die Antriebskettenräder und den Arin der Hintergabel nicht berühren kann. Der Schaltvorgang wird durch den mittels Bowdenzug betätigten Winkelhebel bewirkt. Die entgegenwirkende Feder ist eine in den beiden Stahlrohren liegende, auf Druckbeanspruchte Schraubenfeder. Der Bowdenzug ist am Winkelhebel und am Bowdenzugwiderlager aushängbar. Als Schalthebel ist ein Segmentliebel zu verwenden, an dessen Grundplatte die Feineinstellung für die Bowdenzuglänge anzubringen ist.The invention is based on the drawing in an exemplary embodiment explained. According to Fig. I and 2 wixd with a base plate, which is attached to the bearing eyes of the Arm of the rear fork is screwed to the wheel hub at the same time, a transverse direction Rigid steel tube in which a second of the same length slides. With the The switching arm is firmly connected to the inner tube. This one carries on its other end a bolt on which the chain pulley and the tension arm are rotatably mounted. The length of the bolt can be adjusted using nuts. The tension spring of the tension arm is supported against the switch arm. The chain idler and the derailleur wheel are two the same chain wheels running on balls (w = io, t = '/ = ") a chain safety device. On the outer steel tube is the one designed as a pipe clamp Carrier for the angle lever, the lj'o \\ - pulling abutment and the shift limiting hook unscrewed, which can be moved depending on the number of Antriebskettenrä; Corresponding marks are to be affixed to the steel tube. This carrier serves at the same time together with a nose of the switching arm to limit its movement above. The carrier is to be rotated so that the derailleur wheel drives the sprockets and can't touch the arin of the back fork. The switching process is carried out by the causes an angle lever operated by means of a Bowden cable. The counteracting spring is a compression-loaded helical spring located in the two steel tubes. Of the The Bowden cable can be detached from the angle lever and the Bowden cable abutment. As a gear lever a segment sweep is to be used, on whose base plate the fine adjustment for the Bowden cable length is to be attached.

Claims (1)

P A T E N T A N S P R L C I I Fahrradwechselgetriebe mit Kettenumschaltung zwischen verschieden großen, gleichachsig zur Radnabe angeordneten Antriebskettenrädern. dadurch gekennzeichnet, (lad der das Kettenschaltrad und den schwenkbaren Spannarm mit Kettenspannrad tragende schwenkbare Schaltarm durch einen am Fahrradgestell gelagerten Winkelhebel gegen Federkraft seitlich verschiebbar ist. PATENTA N SPR L CI I Bicycle change transmission with chain switching between drive chain wheels of different sizes, arranged in the same axis as the wheel hub. characterized in that (lad the pivotable shift arm carrying the chain shift wheel and the pivotable tensioning arm with chain tensioning wheel is laterally displaceable against spring force by an angle lever mounted on the bicycle frame.
DEH4693A 1950-07-26 1950-07-26 Bicycle change transmission with chain switching Expired DE822054C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH4693A DE822054C (en) 1950-07-26 1950-07-26 Bicycle change transmission with chain switching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH4693A DE822054C (en) 1950-07-26 1950-07-26 Bicycle change transmission with chain switching

Publications (1)

Publication Number Publication Date
DE822054C true DE822054C (en) 1951-11-22

Family

ID=7144077

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH4693A Expired DE822054C (en) 1950-07-26 1950-07-26 Bicycle change transmission with chain switching

Country Status (1)

Country Link
DE (1) DE822054C (en)

Similar Documents

Publication Publication Date Title
DE2400835C3 (en)
CH195098A (en) Physical exercise apparatus.
DE822054C (en) Bicycle change transmission with chain switching
DE884315C (en) clockwork
DE2903736A1 (en) BICYCLE DERAILLEUR GEAR
DE543862C (en) Swivel fork support for bicycles and motorcycles
EP0781702B1 (en) Direction indicator apparatus for bicycle and mopeds
DE2118208A1 (en) Drive tensioner - in chain return path by two idler wheels to give an s course
DE636794C (en) Change gear for bicycles
DE876223C (en) Locking device for the spring-loaded tensioning arm of a chain switching device of a bicycle or similar vehicle
DE92777C (en)
DE334085C (en) Spring hammer with adjustable impact strength
DE945735C (en) Chain transfer device for change gears of bicycles with at least two transmission wheels
DE927793C (en) Change transmission with chain switching between several chain wheels, especially for bicycles
DE858367C (en) Pedal lever drive for bicycles
DE634649C (en) Device for pivoting the rear wheel axle for bicycles carrying the one set of wheels of a chain wheel change gear
DE625114C (en) Change gear for the crank chain wheel
DE858934C (en) Device for changing the transmission ratio on bicycles with chain switching
DE838567C (en) Chain switching device for bicycles
DE515515C (en) Auxiliary steering device for bicycles
DE73774C (en) Steering device for bicycles
DE3133813A1 (en) Pedal-crank drive for two- and multi-wheeled vehicles
DE192237C (en)
DE697353C (en) Direction indicators for bicycles and motorcycles
DE95686C (en)