Locking device for inhibiting the engagement of the reverse gear of a motor vehicle transmission

A locking device, in particular for inhibiting the engagement of the reverse gear of a motor vehicle transmission, comprising an inhibitor (2) arranged in a housing (1) and being movable between a first and a second position, whereas the inhibitor (2) prevents the movement of a transmission part (15) of the transmission in the first position and permits the movement of the transmission part (15) in the second position, whereas a sensor (8) for indicating the engaged reverse gear is further provided in the housing (1), characterized in that the inhibitor (2) is axially movable in the housing (1) and follows the movement of a core part (3), which is likewise movable in the axial direction by a solenoid arrangement (18) provided in the housing (1), whereas the coil (5) of the solenoid arrangement (18) surrounds the core part (3), and the solenoid arrangement (18) and the inhibitor (2) are, protected against contaminants, tightly arranged in a chamber (9) of the housing (1).