MANUAL GEARBOX SYNCHRONIZER WITH INTEGRATED JAW CLUTCHING ASSISTANCE

摘要

The invention concerns a manual gearbox synchronizer comprising a hub (1) fixed on a box shaft (2), a sliding sleeve (3) sliding axially on the hub (1) to push back a synchronizing ring (4) against an idler (6) so as to equalize the angular speed of the ring with that of the idler, before passing through the ring to continue its travel in free flight to operate the jaw clutching thereof, characterized in that the sliding sleeve (3) comprises at least one spring assisting (9) the gear shifting releasing its energy during the free flight phase.