DE20009533U1 - Switching device for a chain gear shift - Google Patents

Switching device for a chain gear shift

Info

Publication number
DE20009533U1
DE20009533U1 DE20009533U DE20009533U DE20009533U1 DE 20009533 U1 DE20009533 U1 DE 20009533U1 DE 20009533 U DE20009533 U DE 20009533U DE 20009533 U DE20009533 U DE 20009533U DE 20009533 U1 DE20009533 U1 DE 20009533U1
Authority
DE
Germany
Prior art keywords
switching device
cable
strut
derailleur
chain
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 - Lifetime
Application number
DE20009533U
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.)
Hans Helmig GmbH
Original Assignee
Hans Helmig GmbH
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 Hans Helmig GmbH filed Critical Hans Helmig GmbH
Priority to DE20009533U priority Critical patent/DE20009533U1/en
Publication of DE20009533U1 publication Critical patent/DE20009533U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B62M9/131—Front derailleurs
    • B62M9/137—Mounting or guiding of cables
    • 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
    • B62M9/131—Front derailleurs
    • B62M9/134—Mechanisms for shifting laterally
    • B62M9/1342—Mechanisms for shifting laterally characterised by the linkage mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (7)

1. Schaltvorrichtung für Kettengetriebe, insbesondere Kettengangschaltungen an Fahrrädern, wobei die Kette zwischen zumindest einem Zahnkranz an einem Rad des Fahrrades und einer Kettenradgruppe mit mehreren Kettenblättern an der Tretkurbel angeordnet ist, wobei am Rahmen des Fahrrades abgestützt ein Umwerfer (1) angelenkt ist, dessen Kettenführung (6) über zumindest zwei Streben einer Parallelogrammanlenkung zum Wechseln der Kette von einem Kettenblatt zum anderen verschiebbar ist und wobei die Verschiebung der Kettenführung (6) mittels einer Betätigungseinheit im Bereich der Hände des Fahrradfahrers erfolgt, die durch das Zugseil (9) eines Betätigungszuges (7) mit einer Befestigungsstelle einer Strebe des Umwerfers (1) in Wirkverbindung steht, der in Gegenrichtung durch eine Feder vorgespannt ist, dadurch gekennzeichnet, dass zwei Hebelelemente (10 und 12) mit Befestigungsstellen für das Zugseil (9) des Betätigungszuges (7) vorgesehen sind, die gemeinsam mit einer oder einzelnen mit je einer Strebe (4 oder 5) in Wirkverbindung stehen, wobei die Befestigungsstellen zu den Drehpunkten der Strebe(n) am Stützteil (2) des Umwerfers (1) und/oder an der Kettenführung (6) radial beabstandet sind, und dass das Zugseil (9) alternativ auf der einen oder der anderen Seite der einen Strebe (4) oder je einer Strebe angelenkt ist. 1. Switching device for chain transmissions, in particular chain gear shifts on bicycles, the chain being arranged between at least one sprocket on a wheel of the bicycle and a sprocket group with a plurality of chainrings on the pedal crank, a derailleur ( 1 ) being articulated on the frame of the bicycle, whose Chain guide ( 6 ) is displaceable from at least two struts of a parallelogram linkage for changing the chain from one chainring to the other and the chain guide ( 6 ) is displaced by means of an actuating unit in the region of the hands of the cyclist, which is actuated by the pull cable ( 9 ) of an actuating cable ( 7 ) is in operative connection with a fastening point of a strut of the derailleur ( 1 ) which is biased in the opposite direction by a spring, characterized in that two lever elements ( 10 and 12 ) with fastening points for the pull cable ( 9 ) of the actuating cable ( 7 ) are provided, the common m are in operative connection with one or individual struts ( 4 or 5 ), the fastening points being radially spaced from the pivot points of the strut (s) on the support part ( 2 ) of the derailleur ( 1 ) and / or on the chain guide ( 6 ) are, and that the pull rope ( 9 ) is alternatively articulated on one or the other side of one strut ( 4 ) or one strut. 2. Schaltvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Hebelelemente (10 und 12) beidseitig einer Strebe (4) im Bereich des Drehpunktes am Stützteil (2) des Umwerfers (1) angeordnet sind.2. Switching device according to claim 1, characterized in that the lever elements ( 10 and 12 ) are arranged on both sides of a strut ( 4 ) in the region of the fulcrum on the support part ( 2 ) of the derailleur ( 1 ). 3. Schaltvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass an beabstandeten Streben je ein Hebelelement (10) vorgesehen ist und die Hebelelemente an den Streben gegeneinander gerichtet angeordnet sind.3. Switching device according to claim 1, characterized in that a lever element ( 10 ) is provided on spaced struts and the lever elements are arranged on the struts directed towards each other. 4. Schaltvorrichtung nach einem der Ansprüche 1 bis 3, wobei das Stützteil des Umwerfers an einem Sattelrohr des Fahrrades abgestützt ist, dadurch gekennzeichnet, dass der Betätigungszug (7) bei Befestigung des Zugseiles (9) an einer Seite einer Strebe (4) aus Richtung des Sattels kommend an den Umwerfer (1) herangeführt ist und dass der Betätigungszug (7) bei Anlenkung des Zugseiles (9) auf der gegenüberliegenden Seite (4) dieser oder einer anderen Strebe aus der Richtung der Tretkurbel an den Umwerfer (1) herangeführt ist.4. Switching device according to one of claims 1 to 3, wherein the support part of the derailleur is supported on a seat tube of the bicycle, characterized in that the actuating cable ( 7 ) when fastening the pull cable ( 9 ) on one side of a strut ( 4 ) from the direction of the saddle coming to the front derailleur ( 1 ) and that the actuating cable ( 7 ) is guided to the front derailleur ( 1 ) from the direction of the pedal crank when the pulling cable ( 9 ) is articulated on the opposite side (4) of this or another strut . 5. Schaltvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Zugseil (9) an einem Zwischen­ stück befestigt ist, das seinerseits an einer Befestigungsstelle um eine Achse quer zur Längsrichtung des Zugseils (9) schwenkbar gelagert ist.5. Switching device according to one of the preceding claims, characterized in that the pull cable ( 9 ) is fastened to an intermediate piece, which in turn is pivotally mounted at an attachment point about an axis transverse to the longitudinal direction of the pull cable ( 9 ). 6. Schaltvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Zwischenstück als Nippel (11) ausgebildet ist, an dem das Zugseil (9) vorzugsweise mittels einer Schraube verspannt ist, wobei der Nippel (11) drehbar an dem Hebelelement gelagert ist. 6. Switching device according to claim 5, characterized in that the intermediate piece is designed as a nipple ( 11 ) on which the traction cable ( 9 ) is preferably braced by means of a screw, the nipple ( 11 ) being rotatably mounted on the lever element. 7. Schaltvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Zwischenstück als Schraube ausgebildet ist, die vorzugsweise unter Zwischenschaltung einer Hülse an der Befestigungsstelle drehbar gelagert ist, wobei das Zugseil zwischen der Hülse und einer Mutter der Schraube, vorzugsweise unter Zuhilfenahme von Unterlegscheiben, verspannt ist.7. Switching device according to claim 5, characterized in that the intermediate piece as a screw is formed, which preferably with the interposition of a Sleeve is rotatably mounted at the attachment point, which Traction rope between the sleeve and a nut of the screw, preferably with the help of washers is.
DE20009533U 2000-05-26 2000-05-26 Switching device for a chain gear shift Expired - Lifetime DE20009533U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20009533U DE20009533U1 (en) 2000-05-26 2000-05-26 Switching device for a chain gear shift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20009533U DE20009533U1 (en) 2000-05-26 2000-05-26 Switching device for a chain gear shift

Publications (1)

Publication Number Publication Date
DE20009533U1 true DE20009533U1 (en) 2000-10-05

Family

ID=7942101

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20009533U Expired - Lifetime DE20009533U1 (en) 2000-05-26 2000-05-26 Switching device for a chain gear shift

Country Status (1)

Country Link
DE (1) DE20009533U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1780114A3 (en) * 2005-10-25 2008-06-25 SRAM Deutschland GmbH Front derailleur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1780114A3 (en) * 2005-10-25 2008-06-25 SRAM Deutschland GmbH Front derailleur
US8439779B2 (en) 2005-10-25 2013-05-14 Sram Deutschland Gmbh Front derailleur

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20001109

R150 Term of protection extended to 6 years

Effective date: 20030707

R157 Lapse of ip right after 6 years

Effective date: 20061201