Power transmission with ancillary change-speed mechanism for ext

Details Power transmission with ancillary change-speed mechanism for ext Power transmission with ancillary change-speed mechanism for ext

1986-06-12

1987-11-24

Braun, Leslie

Machine element or mechanism

Gearing

Interchangeably locked

74331, F16H 308

Patent

active

047080264

ABSTRACT:
A power transmission includes a housing formed to contain a main change-speed mechanism and an ancillary change-speed mechanism. The main change-speed mechanism includes input and output shafts arranged in parallel with each other and rotatably mounted within the housing, and a first drive gear mounted on the input shaft for rotation therewith, a second drive gear rotatably mounted on the input shaft, a first driven gear rotatably mounted on the output shaft and in mesh with the first drive gear to provide a low speed gear train, a second driven gear mounted on the output shaft for rotation therewith and in mesh with the second drive gear to provide a high speed gear train. The ancillary change-speed mechanism includes an ancillary shaft arranged in parallel with the input shaft and rotatably mounted within the housing, an input gear rotatably mounted on the ancillary shaft and in mesh with the first drive gear, an output gear mounted on the ancillary shaft for rotation therewith and in mesh with the second drive gear, and a synchronizer mounted on the ancillary shaft to engage the input gear with the ancillary shaft.

REFERENCES:
patent: 3589483 (1971-06-01), Smith
patent: 4038882 (1977-08-01), Keller
patent: 4226135 (1980-10-01), Winter
patent: 4377093 (1983-03-01), Janson
patent: 4570503 (1986-02-01), Theobald

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