Machine element or mechanism – Gearing – Interchangeably locked
Patent
1986-12-24
1987-12-22
Braun, Leslie
Machine element or mechanism
Gearing
Interchangeably locked
192 51, 192 93R, F16H 506
Patent
active
047139790
ABSTRACT:
A transmission includes a forward shift drum and an overlying and coaxial reverse shift drum. The drums are rotatable, but not longitudinally translatable with respect to each other. The drums each include lead grooves for guiding a shift fork pin therealong in portions of the grooves which overlap and intersect each other. When one of the lead grooves guides the shift fork pin into a gear position, the other lead groove serves as a stop, so that unintentional engagement of remaining gears with the drive shaft is prevented without the use of a separate special lock mechanism.
REFERENCES:
patent: 4455884 (1984-06-01), Tsuruta et al.
patent: 4635506 (1987-01-01), Imaizumi et al.
Hori Yoshiaki
Masumura Masanori
Muto Osamu
Braun Leslie
Honda Giken Kogyo Kabushiki Kaisha
Wright Dirk
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