Articulated chain for drive transmission in bicycles

Details Articulated chain for drive transmission in bicycles Articulated chain for drive transmission in bicycles

2004-10-12

2011-11-29

Siconolfi, Robert (Department: 3657)

Endless belt power transmission systems or components

Positive drive belt

Belt formed of rigid links

C474S206000, C474S210000, C474S219000, C474S228000

Reexamination Certificate

active

08066604

ABSTRACT:
The chain comprises a plurality of external links (2), each defined by a pair of parallel external plates (4, 5) and by two rotation pivots (6) interpositioned between the two external plates (4, 5). The chain also comprises a plurality of internal links (3), each defined by a pair of parallel internal plates (7, 8) and by two bushes (9) interpositioned between the plates and each internal link (3). Each of the rotation pivots (6) is inserted coaxially in a bush (9) and so defines an alternated succession of external links (2) and internal links (3) and defines with the bush (9) a spherical coupling surface. The chain also comprises anti-rotation elements (12) for reducing a possibility of rotation with respect to an alignment direction of each pair of adjacent links (2, 3).

REFERENCES:
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patent: 2277915 (1942-03-01), Klaucke
patent: 3093235 (1963-06-01), Imse
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patent: 5288278 (1994-02-01), Nagano
patent: 5322483 (1994-06-01), Wang
patent: 0 494 670 (1992-07-01), None
patent: 0 666 434 (1995-08-01), None
patent: 60 093017 (1985-05-01), None

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