Gear shifting system in manual transmission

摘要

In changing system in a manual transmission in which a reverse idling gear (46) is slid and meshed simultaneously with a first reverse gear (47) secured to one of a main shaft (SM) and a counter shaft (SC) and with a second reverse (48) gear mounted on a sleeve (49) of a preselected synchronizing mechanism (51) mounted on the other of the main shaft and the counter shaft, thereby establishing a reverse speed stage, an interlock plate (86) is formed into a shape such that it inhibits the movement of a preselected shifting piece in the same direction as a direction of sliding of the reverse idling gear, when a shifting arm (90) having a drive portion engaged with a reverse shifting piece is turned for shifting to establish a reverse speed stage. Thus, it is possible to inhibit the movement of the sleeve of the preselected synchronizing mechanism, when the reverse speed stage is to be established, whereby the reverse shifting load can be reduced.