Clutch connecting/disconnecting device

A clutch connecting/disconnecting device comprising:

• a clutch pedal operated by a driver;
• a clutch cylinder to which a depression force from the clutch pedal is transmitted;
• a depression force transmission mechanism transmitting the depression force from the clutch pedal to the clutch cylinder;
• and an actuator connected to the depression force transmission mechanism in a power transmitting manner and connecting and disconnecting a clutch via the depression force transmission mechanism, wherein
• the depression force transmission mechanism is configured to include a cylinder device to which the depression force from the clutch pedal is transmitted, wherein
• the cylinder device includes
• an input piston to which the depression force from the clutch pedal is input,
• an output piston for outputting a clutch operating hydraulic pressure to the clutch cylinder,
• a first oil chamber formed between the input piston and the output piston, and
• a second oil chamber supplied with a hydraulic oil for pressing the output piston with a hydraulic pressure of the hydraulic oil in a connecting direction of the clutch, wherein
• a pressure receiving area on the first oil chamber side of the output piston is made equal to a pressure receiving area on the second oil chamber side of the output piston, wherein
• the first oil chamber and the second oil chamber are connected via an electromagnetic valve connecting and disconnecting between the first oil chamber and the second oil chamber, and wherein
• the actuator is connected to the output piston in a power transmitting manner.