The present invention is an injection device comprising a housing and a container holder disposed in said housing , the container holder is configured to accommodate the drug container , the medicament container is attached to one end and needles , and the sealed form to the other end of the inner drug container includes a slidably disposed stop , the injection device and further , it can be in contact with the proximal end the stop state a plunger rod which is arranged in , is disposed inside the housing of the injection device , the first and second energy storage member which is adapted to the accumulated stored energy , and is slidably disposed with respect to the plunger rod is the rotation lock on the plunger rod , and a plunger driving means is rotatable relative to the housing , the plunger drive means is operatively associated with the first energy storage member , said injection device further includes a container holder is arranged to be connectable to comprise a screw connected containers driver to the plunger rod , the container driver , the axial force outputted from the second energy storage member , the container holder and the plunger rod housing for , towards the proximal end of the injection device , as is moving only a predetermined distance from the first lock position to the second position axial , operatively the second energy storage member the associated and it penetrating the needle is performed by the plunger drive means is locked so as not to rotate by the container the driver , the plunger drive means , the output torque from the first energy storage element , plunger drive means becomes rotatable , the plunger rod is released to be propelled towards the proximal end of the injection device , whereby the injection is performed , on the injection device .この発明は、注射装置であって、ハウジングと、前記ハウジング内に配置された容器ホルダとを含み、容器ホルダは薬剤容器を収容するために構成されており、薬剤容器は、その一端に取付けられた針と、薬剤容器内部のその他端に封止状にかつ摺動可能に配置された止め具とを有しており、前記注射装置はさらに、近位端が前記止め具と接触可能な状態で配置されたプランジャロッドと、注射装置のハウジングの内