Child safety closing device with first opening indicator screw and ring

摘要

The invention relates to a child safety closing device (1) associated with a container (2), operating according to a design of two plugs (3, 4) embedded into each other, and allowing a vertical translation movement of the outer plug (4) relative to the inner screw-threaded plug (3) providing an unscrewing possibility and fitted with a first-opening indicator ring (5) connected by breakage bridges (8) to the outer plug (4) capable of vertical translation movement, characterized in that: a) said ring (5) has on its inner surface notches (9) for preventing its rotation when unscrewing the device by interaction with corresponding notches (10) formed on the neck of the associated container inside a peripheral groove (11) outside said collar, in order to induce the braking of the bridges by shearing; b) the upper wall of the groove (11) defines a guiding shoulder (12) for said ring (5) during the vertical translation movement of the ring (5) when connected to the outer plug; c) the notches (10) inside the groove (5) have a height such that they interact with the notches (9) inside the inner face of said ring (5) whatever the position of said ring (5) during the vertical translation movement thereof when connected to the outer plug (4).

主权项

1. Child-safety closing device and container, wherein the child-safety closing devices comprises an external and threaded internal stopper fitting one in the other, wherein a vertical translation movement of the external stopper with respect to the threaded internal stopper, is allowed and gives rise to a possibility of unscrewing, and wherein the external stopper further comprises a first-opening indicating ring secured by breakable bridges to the external stopper, which move in vertical translation with respect to the threaded internal stopper before the breakable bridges are fractured upon first opening, wherein
a) the first-opening indicating ring has, on its internal face, serrations, the function of which is to prevent rotation thereof when the device is unscrewed by engaging with corresponding serrations disposed on a neck of the container and inside a peripheral groove external to the neck, with a view to causing breakage of the bridges by shearing, and wherein b) a top wall of the peripheral groove external to the neck constitutes a guide shoulder for the first-opening indicating ring in the vertical translation movement of the first-opening indicating ring when the first-opening indicating ring is secured to the external stopper, and wherein c) the serrations disposed on the neck of the container and placed inside the peripheral groove external to the neck are of a height that does not exceed the height of the peripheral groove and that is sufficiently greater than the height of the serrations present on an internal face of first-opening indicating ring to thereby maintain freedom of vertical translation movement of the first-opening indicating ring when secured to the external stopper facilitating unscrewing and such that they engage with the serrations present on the internal face of the first-opening indicating ring, whatever the position of this first-opening indicating ring in its vertical translation movement when secured to the external stopper; d) and wherein the first-opening indicating ring, which is secured by the breakable bridges to the external stopper, is movable in vertical translation with the external stopper independent of and without resulting in rotational movement of the threaded internal stopper and e) wherein each of the internal and external stoppers further comprises on their superstructure a driving mechanism, wherein one driving mechanism is located on the internal surface of the external stopper and a second driving mechanism is located on the external surface of the threaded internal stopper, such that the external stopper, when it is subjected to an axial pressure and then a rotation, engages the threaded internal stopper and drives it, by means of interaction of the respective driving mechanisms, as required for an opening movement, and f) characterised in that the external stopper further comprises on the internal surface of the top end wall in contact with the external surface of the top end wall of the threaded internal stopper deformable spacing elements with shape memory capable of deforming when a vertical downward pressure is exerted on the external stopper allowing engagement of these driving means, characterised in that the deformable spacing elements with shape memory comprise segments of tongues positioned in a circle, forming a splayed mini-skirt secured to the internal face of the external stopper, each of the segments having the ability to fold elastically around its connection line with the internal surface of the top end wall of the external stopper when pressure is exerted on these segments, and g) wherein the deformable spacing elements separate teeth on the internal surface of the external stopper from interaction with teeth of the external surface of the threaded internal stopper unless both axial pressure and rotational pressure are applied to the external stopper.