Front derailleur

A front derailleur that includes a derailleur housing having a tubular clamp and a chain guide coupled to parallelogram arms. A pivotal transfer element transfers the shifting motion through a pull cable to the chain guide. The shifting momentum is supported by a derailleur housing having a support...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	FLORCZYK RAYMOND
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CYCLES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES THERMAL INSULATION IN GENERAL TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A front derailleur that includes a derailleur housing having a tubular clamp and a chain guide coupled to parallelogram arms. A pivotal transfer element transfers the shifting motion through a pull cable to the chain guide. The shifting momentum is supported by a derailleur housing having a support extension extending in a support direction along the bicycle frame beyond the hinge of the tubular clamp. The transfer element is pivotally mounted to the derailleur housing by a pivot pin. The return spring is disposed around the pivot pin and is supported on a spring stop of the derailleur housing. The return spring is partially surrounded by a spring cover, which is integrated into the derailleur housing, all of which is protected from dirt by a second covering. The bores for accepting the adjustment screws, which are inclined relative to the frame tube in order to improve accessibility, are located in the spring cover.