Jig for mounting a front derailleur in a bicycle

Details Jig for mounting a front derailleur in a bicycle Jig for mounting a front derailleur in a bicycle

1980-04-09

1982-07-06

Watson, Robert C.

Work holders

Plural holders to hold workpieces relative to each other

Fixed work-contacting portions for each holder

269 43, 269268, 269909, B25B 120

Patent

active

043379338

ABSTRACT:
A jig for mounting a front derailleur on a frame at a bicycle. The jig has a main body opposite to the lateral side of one of a pair of guide plates and having a length along the lateral side of the guide plate. The main body has a receiving plate having a receiving face of a circular arc fit to the lower end face of the guide plate, and has an engaging portion engageable with the outer peripheral portion of the front chain gear. The receiving face, when the engaging portion engages with the outer peripheral portion of the chain gear, is adapted to be put in a proper position with respect to the chain gear, so that the guide plate is positioned along the receiving face to set the front derailleur in its mounting position onto the frame.

REFERENCES:
patent: 395875 (1889-01-01), Butler
patent: 950285 (1910-02-01), Harper
patent: 1961659 (1934-06-01), Castaneda

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