Transmission with structurally simplified gear ratio

Abstract

A transmission (1) comprising a gear assembly for transmitting a rotary motion from a driving shaft (2) to a driven shaft (3), with variable gear ratio, the two shafts (2 and 3) not being coaxial. This transmission consists in: a gear-wheel (4) axially split into two half-gear-wheels (5 and 6) one (5) axially mobile relative to the other (6) and also relative to one of the shafts (3) supporting them, the two half-gear-wheels (5 and 6) being fixed in rotation relative to this shaft (3); a plate (7), integral with the other shaft (2), comprising, on at least one of its surfaces, several gear teeth, concentric (8 to 11) with this shaft (2), cooperating with the gear-wheel (4); and elements for axially displacing the two half-gear-wheels (5 and 6) to alter the geared concentric tooth (8 to 11), thereby shifting the gear ratio. The invention is preferably applicable to land vehicles.

Dependencies are inferred from the claim text.