Endless belt power transmission systems or components – Positive drive belt – Belt formed of rigid links
Patent
1978-06-30
1981-05-05
McCall, James T.
Endless belt power transmission systems or components
Positive drive belt
Belt formed of rigid links
59 8, F16G 1302
Patent
active
042651344
ABSTRACT:
The chain comprises alternately pivotally interconnected outer links and inner links. The outer links are formed by outer plates which are interconnected by spacer members and the inner links are formed by inner plates which are trapped between the outer plates and are rigid with tubular members through which the spacer members extend. Each inner plate comprises two planar portions of rounded or part-circular shape which are interconnected by a center portion. At least a part of the center portion is deformed relative to the general plane of the plate. The inner plates of a given link have their deformed part offset and facing outwardly of the link so as to constitute an entrance or lead-in for sprocket teeth. In this way, the engagement of the chain on the sprocket is facilitated, in particular when changing gear by means of a derailleur acting on the chain.
REFERENCES:
patent: 1166460 (1916-01-01), Hughes
patent: 1994840 (1935-03-01), Thoen
patent: 3054301 (1962-09-01), Kummerer et al.
patent: 3093235 (1963-06-01), Imse
patent: 3359815 (1967-12-01), Jeffrey et al.
patent: 3421313 (1969-01-01), Harada et al.
patent: 3595011 (1971-07-01), Nicholson
patent: 4036072 (1977-07-01), McKeon
patent: 4102216 (1978-07-01), Nagato
patent: 4117738 (1978-10-01), McKeon
Compagnie des Transmissions Mecaniques Sedis
McCall James T.
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