| 摘要 |
The invention relates to a manually operated gear box for commercial vehicles comprising a plurality of synchronised forward gears and an unsynchronised reverse gear and, optionally an unsynchronised crawler gear with synchronous packets for the forward gears and lock plates, comprising a locking element (3) on the gearshift bar (1) for the unsynchronised reverse gear or on the gearshift bar for the unsynchronised crawler gear, arranged in such a way that it engages with an adjacent gearshift bar (1) without force for one of the synchronised forward gears when the shift path for the reverse of crawler gear is selected, whereby said forward gears are engaged in the shifting direction. An ansynchronisiation of the forward gears assigned to the adjacent gearshift bar (2) occurs although a shift through said respective forward gear is prevented. |
