| 摘要 |
<p>The invention relates to a synchronization unit (10) of a manual transmission (12), having a synchronizing element (14) which is mounted in a rotationally fixed fashion on a transmission shaft (16), a shifting sleeve (20) which is arranged in a rotationally fixed fashion relative to the synchronizing element (14), a synchronizing ring (22) which is embodied without locking toothing and has the purpose of coupling the synchronizing element (14) to a gearwheel (24) of the manual transmission (12) by means of a frictional connection, and to a pre-synchronizing unit (26) which acts on the shifting sleeve (20), wherein in the case of axial activation of the shifting sleeve (20) the pre-synchronizing unit (26) applies an axial shifting force (Fs) to the synchronizing ring (22) with respect to the gearwheel (24) which is to be coupled, and can lock or release axial displacement of the shifting sleeve (20) towards the gearwheel (24), and wherein a plurality of coupling pins (38), which each protrude axially beyond an end side (40) of the shifting sleeve (20) and can engage in a detachable fashion in an assigned coupling geometry on the gearwheel side in such a way that the gearwheel (24) and the synchronizing element (14) are coupled in a substantially rotationally fixed fashion.</p> |
