CHILD SAFETY CLOSURE DEVICE WITH A SCREW AND A FIRST-OPEN WINDOW RING

摘要

The invention relates to a child-resistant closure device associated with a container, operating according to the architecture of two plugs nested one inside the other, allowing a vertical translation movement of the outer plug with respect to the internal threaded cap. screw, generating a possibility of unscrewing and equipped with a control ring of first opening secured, by breakable bridges, the outer plug movable in vertical translation, characterized in thata) said ring has, on its inner face, notches whose function is to prevent its rotation, during unscrewing of the device, cooperating with corresponding notches arranged on the neck of the associated container, inside a peripheral groove external to said neck, and to cause breaking by shearing the bridges, b) the upper wall of the groove constitutes a guide shoulder for said ring in the vertical translational movement of the ring when soli c) the notches placed inside the groove are of a height such that they cooperate with the notches present inside the internal face of the said ring, whatever the position of this ring during its vertical translation movement when secured to the outer cap.