Multiple countershaft transmission

Details Multiple countershaft transmission Multiple countershaft transmission

1981-07-31

1987-02-03

Leppink, James A.

Machine element or mechanism

Gearing

Interchangeably locked

74331, F16H 308

Patent

active

046401458

ABSTRACT:
An improved, multiple substantially identical countershaft assembly (16, 16A), change gear transmission (10) having at least two (20, 20A) countershafts is provided. The input gear (14) and each mainshaft gear (42, 44, 46, 48) is constantly engaged with a countershaft gear (24 and 24a, 26 and 26a, 28 and 28a, 30 and 30a, 32 and 32a) carried by each countershaft and all or substantially all of said input gear and mainshaft gears are provided with a number of gear teeth not evenly divisible by the number of countershafts whereby the level of noise generated by the meshing of the gear teeth is minimized.

REFERENCES:
patent: 3105395 (1963-10-01), Perkins
patent: 3237472 (1966-03-01), Perkins et al.
patent: 3255644 (1966-06-01), Warren et al.
patent: 3283613 (1966-11-01), Perkins
patent: 3335616 (1967-08-01), Perkins
patent: 3349635 (1967-10-01), Richards
patent: 3378214 (1968-04-01), Hilsinger
patent: 3500695 (1970-03-01), Keiser
patent: 3648546 (1972-03-01), McNamara et al.
patent: 3732745 (1973-05-01), Jackson
patent: 4152949 (1979-05-01), Vandervoort et al.

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