External control device for a vehicle transmission, especially for use in a commercial vehicle

摘要

This invention relates to an external control device for a transmission system in which the shifting shaft (AI) (servo-controlled) and selection shaft (AS) are driven by means of a relative first lever (LI1) that transforms the traction/thrust motion of the actuator operated by the gear shift lever into the rotational motion of a shaft, and then a second lever (LS1) that converts such rotational motion into an axial translational motion of the relative shafts. Between the shifting and selection shafts there is a rocker arm (BIL). At the end of the rocker arm that is outside the device there is a nib (NA) that directly controls the shifting and selection mechanisms in the transmission.