The present disclosure relates to a dosing mechanism 9 for a drug delivery device 1 comprising a linearly displaceable drug delivery member cover 7, an actuator sleeve 11 and an actuator sleeve 11 configured to be received by the actuator sleeve 11 As the actuator 13, the drug delivery member cover 7 axially displaces the actuator sleeve 11 from its initial position to its distal displaced position to displace the actuator sleeve 11 relative to the actuator 13 The rotor 25 being configured to be received by the actuator 13 and to be received by the rotor 25 and to be engaged with the rotor 25, The plunger holder 21 comprises a plunger holder 21 and a plunger holder 21 at an initial position of the actuator sleeve 11. The plunger holder 21 is configured to deflect the plunger holder 21 in a proximal direction, Lt； / RTI >； Actuator 13 is configured to engage plunger holder 21 at an initial position of actuator sleeve 11 and to engage plunger holder 21 in the initial position of actuator sleeve 11. The plunger holder 21 is configured to engage plunger holder 21 and configured to deflect in a proximal direction, The actuator 13 is configured to prevent the holder 21 from being displaced proximally relative to the actuator 13 and the actuator 13 is configured to displace the actuator sleeve 13 against the plunger holder 21 by displacement of the actuator sleeve 11 towards the distal- Is released from engagement so as to enable proximal displacement of the plunger holder 21, the plunger rod 23 and the rotor 25 relative to the actuator 13 so that the actuator 13 can be moved away from the rotor 25 To the plunger holder 21 and to rotate the rotor 25 relative to the plunger holder 21 to release the plunger rod 23 from the plunger holder 21 .본 개시는 약물 전달 장치(1)를 위한 투여 메커니즘(9)에 있어서, 선형적으로 변위가능한 약물 전달 부재 커버(7)와, 액추에이터 슬리브(11)와, 액추에이터 슬리브(11)에 의해 수용되도록 구성된 액추에이터(13)로서, 약물 전달 부재 커버(7)는 액추에이터 슬리브(11)를 초기 위치로부터 원위방향으로 변위된 위치로 축방향으로 변위시켜서, 액추에이터(13)에 대해 액추에이터 슬리브(11)를 변위시키도록 구성되는,
