Speed-shifting device

Details Speed-shifting device Speed-shifting device

1988-03-29

1989-06-13

Bui, Thuy M.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Speed responsive

74866, 474 28, F16H 1102

Patent

active

048388343

ABSTRACT:
A pulley type speed-shifting device is provided with a driving pulley and driven pulley mounted on each transmission shaft which are parallel, and a belt member is trained between both pulleys. A moving member is connected for movement in the axial direction with one sideplate of the driving pulley and is axially moved on the movable sideplate through screw motion caused by relative rotation around the transmission shaft. A speed-shifting pulley mechanism is provided for rotating the moving member relatively around the transmission shaft to change the transmission ratio between the transmission shafts in accordance with a required mode change.

REFERENCES:
patent: 2253357 (1941-08-01), Wetzel
patent: 4056987 (1977-11-01), Hoffman
patent: 4484901 (1984-11-01), Toti et al.

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