Controllable composite clutch having limited torque while being in released state

A controllable composite clutch device having limited torque while in a released state comprises a clutch (110 or 210) capable of being controlled for performing engaging/releasing function and a limited torque device (120 or 220) installed between an input shaft (101 or 201) and an output shaft (102) or cylindrical output part (202), so that when the clutch (110 or 210) is controlled to be in an engaged state, rotary kinetic energy between the input shaft (101 or 201) and the output shaft (102) or cylindrical output part (202) is transferred through the clutch (110 or 210) and when the clutch (110 or 210) is controlled to be in a released state, the limited torque device (120 or 220) performs limited torque coupling, wherein continued input of the rotary kinetic energy between the input shaft (101 or 201) and the output shaft (102) or cylindrical output part (202) or a slip rotational speed differential generated due to over-torque is carried out by smaller torque, a limited torque of the limited torque device (120 or 220) being smaller than an engaging torque of the clutch (110 or 210) wherein:

• input shaft (101 or 201) is constituted by a shaft or rotary structure capable of inputting the rotary kinetic energy, and coupled to an input end of the axial clutch (110 or 210) and to an input end of the limited torque device (120 or 220);
• output shaft (102) or cylindrical output part (202) is constituted by a shaft or rotary structure capable of outputting the rotary kinetic energy, and respectively coupled to an output end of the axial clutch (110 or 210) and to an output end of the limited torque device (120 or 220);
• axial clutch (110 or 210) is controlled by manual force, centrifugal force, electric force, magnetic force, mechanical force, air pressure, and/or hydraulic force to transfer the rotary kinetic energy between the input shaft (101 or 201) and the output shaft (102) or cylindrical output part (202) when the axial clutch (110 or 210) is the engaged state, and to terminate the transmission of the rotary kinetic energy between the input shaft (101 or 201) and the output shaft (102) or cylindrical output part (202) when the axial clutch (110 or 210) is in the released state;
• limited torque device (120 or 220) is controlled by manual force, centrifugal force, electric force, magnetic force, mechanical force, air pressure, and/or hydraulic force to perform said limited torque coupling;
• and
• an inputting and an outputting function of the input shaft (101 or 201) and the output shaft (102) or cylindrical output part (202) can be switched to input the rotary kinetic energy through the output shaft (102) or cylindrical output part (202) and output the rotary kinetic energy from the input shaft (101 or 201).