Parking mechanism for transmission

An automatic transmission for a vehicle, the automatic transmission comprising:

• a transmission case including a radial wall;
• a clutch;
• an input shaft to receive engine rotation through the clutch;
• a counter shaft;
• an output member;
• a gear system including a plurality of gear sets enclosed in the transmission case, and arranged to transmit 11 rotation between the input shaft and the counter shaft and to form a drive path transmitting rotation from the input shaft to the output member, one of the gear sets being a first gear set which is located adjacent to the radial wall of the transmission case and which includes an input gear fixedly mounted on the input shaft, and an output gear rotatably mounted on the counter shaft;
• a selecting system to select one of gear speeds by altering a driving connection state of the gear system, the selecting system including a first meshing mechanism mounted on the counter shaft, the first meshing mechanism including a coupling sleeve;
• and
• a parking gear fixed to the radial wall of the transmission case, the first meshing mechanism being disposed between the parking gear and the output gear of the first gear set and arranged to engage the output gear of the first gear set with the counter shaft when the coupling sleeve of the first meshing mechanism is shifted in a first axial direction along the counter shaft away from the parking gear, and to engage the counter shaft with the parking gear when the coupling sleeve of the first meshing mechanism is shifted in a second axial direction along the counter shaft toward the parking gear.