<p>A clutch which can be locked without requiring any extra electronic control device. A clutch comprising a first friction disc 2 restricted to an input shaft (1) in the rotational direction, a second friction disc (3) arranged concentrically to the first friction disc, and a clutch drum (4) restricted in the rotational direction together with the second friction disc, wherein the clutch is further provided with a fastening means and a locking means having a cam link (52) for transmitting a pressing force between a ball ramp mechanism supplying a pressing force and a pressure plate (6) for pressing the clutch and locking two friction discs in a specified region.</p>
