ES258268U - A closure of threaded packaging (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A closure of containers with threaded mouth, provided with a safety device that prevents its opening by children, characterized in that it is formed by a set comprising a first internal plug, a material that is substantially rigid, whose skirt is threaded inside and provided outside a peripheral annular rib and whose upper base is slightly sunken and provided with a plurality of inclined plane protuberances equidistant from each other, each of which is arranged so that, in the direction of rotation according to the needles of the the clock first offers a sharp step and then the inclined plane, said protuberances being arranged adjacent to the short upper prolongation of the side skirt, whose upper edge is provided with as many ribs as there are protuberances, alternated with notches that provide a crenellated configuration, a second external plug, superimposed on the first, of a material somewhat f lexible, also provided on its skirt with a peripheral annular rib and provided on the inner face of its flat base with low protuberances, equidistant from each other, adjacent to the skirt and in number equal to the notches of the crenellated edge, and being arranged in said internal face of the flat base, adjacent to the protrusions, flexible tabs inclined in the same direction as the inclined planes of the protuberances of the internal plug, all adapted so that when the external cap is turned in the direction of closing the container, the free edges of the tongues meet against the abrupt steps of the protuberances of the internal plug and force the latter to rotate, whereas if the external cap is rotated upside down, ie in the sense of opening the container, the tongues slide over the inclined planes of the protuberances of the internal plug and this one can not be opened, unless simultaneously the external plug is pressed downwards, or the spring action performed by the flexible tongues, and the protuberances of the external plug are forced to enter the notches of the crenellated edge of the internal plug, whereby the latter is dragged by the external plug. (Machine-translation by Google Translate, not legally binding)