Title:
GEAR BOX FOR SPEED CHANGING
Document Type and Number:
Japanese Patent JPS5576255
Kind Code:
A
Abstract:
A speed change gearbox for agricultural tractors and similar vehicles has an elongate casing rotatably mounting input and output shafts which are coupled by gearing comprising reduction means selectively operable to provide one of a plurality of reduction ratios, and a final gearing stage which serves to set a particular range of ratios. The reduction means includes an epicyclic gear mechanism provided with associated hydraulic control means for selectively controlling movement of various of its elements, and pairs of continuously meshing gears operatively selectable by further hydraulic control means. The arrangement of the hydraulic control means is such that they are all centered on the input shaft which enables the transverse bulk of the gearbox to be minimized.
Inventors:
EMIRIANO BURANKORINI
Application Number:
JP10804279A
Publication Date:
June 09, 1980
Filing Date:
August 24, 1979
Export Citation:
Assignee:
FIAT TRATTORI SPA
International Classes:
F16H3/08; F16H3/54; F16H57/02; F16H37/04; (IPC1-7): F16H57/02