Endless belt power transmission systems or components – Friction drive belt – Including plural interconnected members each having a drive...
Patent
1989-07-05
1990-04-17
Bui, Thuy M.
Endless belt power transmission systems or components
Friction drive belt
Including plural interconnected members each having a drive...
474244, F16G 122
Patent
active
049176587
ABSTRACT:
An improved friction drive chain especially for a continuously variable transmission has a plurality of friction plates, each of the friction plates being substantially I-shaped in lateral section. The friction plates are arranged adjacent one another and connected by connecting link elements received in recesses formed in both lateral sides of the friction plates between upper and lower beam members of said friction plates. The connecting link elements are laterally grooved to bear longitudinally against the friction plates. The outer surfaces of the lower beam members of the plates define friction drive surfaces for contact with driving and/or driven pulleys. The friction plates are heat treated to increase strength, for example by quenching and annealing. The friction drive surfaces are formed with hardened layers by surface hardening treatment such as by electron beam or laser.
REFERENCES:
patent: 2647410 (1953-08-01), Reeves
patent: 4213350 (1980-07-01), Horowitz et al.
Fujimoto Nobuyuki
Hosokawa Toshihiro
Sasamoto Shuji
Sugimoto Yoshiaki
Uchiumi Yutaka
Bui Thuy M.
Tsubakimoto Chain Co.
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