Endless belt power transmission systems or components – Pulley with belt-receiving groove formed by drive faces on... – With spring device
Patent
1999-01-15
2000-09-19
Marmor, Charles A.
Endless belt power transmission systems or components
Pulley with belt-receiving groove formed by drive faces on...
With spring device
474 30, F16H 918
Patent
active
061204005
ABSTRACT:
A transmission wheel pressurizing apparatus for always supplying, in a continuously variable transmission of a constant HP transmission type, a pressurizing force and an elastic force to one out of two transmission wheels simultaneously and only a pressurizing force to the other. For securing the desired number of revolutions and axial torque by always applying a variable pressurizing force and an elastic force of the former, an indirect pressurizing system by way of an elastic member is employed. Upon giving pressurizing control to driven transmission wheel, an elastic device and a compression device are combined so that respective pressurizing forces are superposed in series one another, and the pressurizing force to the driven transmission wheel and the number of revolutions of the transmission wheel are made in inverse proportion to one another to realize pressurizing characteristics of negative inclination. Further, the elastic force thereof is always maintained to secure automatic aligning function and stable constant HP transmission to the transmission member, and apparatuses are supported in a floating state for maintaining the elastic force thus minimizing in size, and intensifying for arranging concentratively on the main body, and the entire pressurizing apparatus is made to be in a detachable construction and at the same time, achieving the high-speed responsiveness of variable speed control.
REFERENCES:
patent: 2205975 (1940-06-01), Heyer
patent: 2742794 (1956-04-01), Vogelsang
patent: 3386299 (1968-06-01), Brown et al.
patent: 3924480 (1975-12-01), Carapellucci
patent: 4735598 (1988-04-01), Moroto et al.
patent: 4973288 (1990-11-01), Sakakibara et al.
Marmor Charles A.
Parekh Ankur
Tokyo Automatic Machinery Co, Ltd
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