THE S.H.E.S. SYSTEM

OPENING CONDITIONS

The utilization sequence is shown below

( The figures refer to the graphic definition selected by the system's promoters according to the patent description of the innovation. The chapter "Industrial production" shown a possible optimal shape )

     

     
To open the container, the consumer uplifts the extremity of the lever provided for manual operation.
The protruding appendices at the other end compress the two areas on the lid on the external sides of the end portions of the lid weakening line. At the same time the hinge, anchored by bulges to the dispenser attachment and operculum, exerts a traction force on the latter. The lever action results in the laceration of the lid along the weakening line, freeing the operculum and corresponding opening. The operculum remains connected to the can through its attachment.
The lifting and rotation of the lever causes a corresponding rotation of the dispenser connected to it (Fig. 4). Such joint rotation of the lever, operculum and dispenser continues until the mating zone of the "S" shaped wall with the skirt joins the lid opening edge (Fig. 5).
  
A further rotation of the lever and its fulcrum shifts to the dispenser attachment, which bends in correspondence of the pre-defined axis (Fig. 6). As an effect of this further rotation, up to its capsizing against the lid (Fig. 7), due to the thicker thickness of the lever with respect to the other components, the dispenser attachment gets pulled outward and joins the end of the laceration line, from which, at the same time, the operculum attachment has moved away.
  
Similarly the dispenser is pulled by the attachment and, pivoting on the mating line of the "S" shaped lateral wall and its skirt, does a tiny rotation toward the outside. The traction exerted on the dispenser attachment by the lever increases the pressure on the attachment that, being capsized on the portion of wall from which it protrudes, causes its compression and a lateral push in the area where the lateral wall mate with the skirt. The consequence is that the countersunk skirt joins with greater force the lid edge and the opening edge fits further in the mating area of the lateral walls with the skirt. Altogether, the dispenser is tightly coupled to the lid and ready-to-use.