Endless belt power transmission systems or components – Positive drive pulley or guide roll – With particular belt
Patent
1991-03-07
1992-04-07
Bui, Thuy M.
Endless belt power transmission systems or components
Positive drive pulley or guide roll
With particular belt
474205, F16G 128
Patent
active
051023741
ABSTRACT:
A toothed belt (1) having between its teeth (7) and the grooves (8) adjacent to the said teeth curvilinear connection segments (17) whose ends are located on the end of the tooth flank and the base line delimiting the grooves. The first end (18) of the curvilinear connection segment coincides with the first terminal point of an arc (20) tangent to the end of the flank and to the base line delimiting the grooves, the second end (19) of the curvilinear segment being located between the second point (21) of the said arc and the point of intersection (22) of the central axis of the groove L-L and the base line. Preferably, the toothed belt forms part of a transmission member including pulleys in which at least one of the pulleys is provided with teeth (24) filleted laterally with respect to the adjacent grooves (23) by curvilinear segments (31, 32) shaped to correspond to the curvilinear connection segments of the belt. Preferably, the curvilinear connection segments of the belt and of the pulley are parabolic arcs.
REFERENCES:
patent: 4337056 (1982-06-01), Bruns
patent: 4403979 (1983-09-01), Wujick
patent: 4452594 (1984-06-01), Patterson
patent: 4553952 (1985-11-01), Tangorra et al.
Di Giacomo Tommaso
Macchiarulo Vincenzo
Bui Thuy M.
Pirelli Trasmissioni Industriali S.p.A.
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