Packaging device having a closure cap that is pre-positionable on a container neck

A packaging device having:

• a closure cap having a tubular skirt provided on its inner surface with thread elements and with at least one relief that protrudes towards the interior of the cap and is separate from said thread elements,
• a container provided with a neck on which the closure cap is mounted, this neck having:
• at least one screw thread in which the thread element can engage in order to allow the cap to be screwed onto the neck,
• at least one housing,
• the relief on the cap being configured to snap-fit in the housing at the end of a movement for pre-positioning the cap on the neck, wherein the cap at the end of the pre-positioning movement is not in its normal use position and has to be screwed on further in order to reach the normal use position, the cap having an interior hollow shaft designed to pass into the neck during the screwing on of the cap, this hollow shaft having at least one tooth for cutting a membrane seal closing the neck, this tooth being positioned above the membrane seal when the cap is in its pre-positioned position on the neck.

A packaging device having:

• a closure cap having a tubular skirt provided on its inner surface with at least one thread element and with at least one relief that protrudes towards the interior of the cap and is separate from the thread element(s), the at least one thread element being helical,
• a container provided with a neck on which the closure cap is mounted, this neck having:
• at least one screw thread in which the thread element can engage in order to allow the cap to be screwed onto the neck,
• at least one housing,
• the relief on the cap being configured to snap-fit in the housing at the end of a movement for pre-positioning the cap on the neck, wherein the cap at the end of the pre-positioning movement is not in its normal use position and has to be screwed on further in order to reach the normal use position, the cap having an interior hollow shaft designed to pass into the neck during the screwing on of the cap, this hollow shaft having at least one tooth for cutting a membrane seal closing the neck, this tooth being positioned above the membrane seal when the cap is in its pre-positioned position on the neck, the relief having a shape that is one of a shape with a circular contour, a frustoconical shape and a dome shape.