Capping device intended to be fixed on the neck of a container and an assembly comprising a container and a capping device

Capping device intended to be fixed on a neck (2) of a container that includes an orifice (3) and an engaging collar (4), including the capping device:

• a cap (1) including an upper wall (13) and an outer peripheral skirt (14), the outer peripheral skirt (14) having a helical thread (7) intended to cooperate with a helical thread (6) formed on the neck (2) to allow:
• an unscrewing of the cap (1) around an axis X to move the cap (1) from a closed position in which the upper wall (13) closes the orifice (3) of the neck (2) and the outer peripheral skirt (14) surrounds said neck (2) towards a released position in which the cap (1) is no longer engaged with the neck (2);
• and
• a screwing of the cap (1) into the neck (2) to move the cap (1) from the released position to the closed position;
• a lower ring (9) axially fixed to the neck (2) and rotatably movable on the neck (2) around said axis X, said lower ring (9) including a first section (16) that includes engaging elements (18) that radially project into the lower ring (9) and are intended to be arranged below the engaging collar (5) to axially retain the lower ring (9) in the neck (2) of the container and a second section (17), the first section (16) and the second section (17) of the lower ring (9) being articulated to each other so that the second section (17) rotates with respect to the first section (16) between a lowered position in which the second section (17) is intended to be arranged below the engaging collar (5) and a raised position in which the second section (17) is intended to be arranged at least partially above the engaging collar (5);
• a hinge device (10) that attaches the cap (1) to the second section (17) of the lower ring (9) and is configured to allow the cap (1) to rotate between the released position and an open tilted position in which the cap (1) is released from the orifice (3) of the neck (2);
• the lower ring (9) being configured so that the second section (17) rotates with respect to the first section (16) from the lowered position to the raised position during the movement of the cap (1) from the closed position to the released position and from the raised position to the lowered position during movement of the cap (1) from the released position to the tilted open position;
• the first section (16) of the lower ring (9) including a front area (19) that is diametrically opposite to the second section (17) and two engagement areas (20, 21) that are each arranged between the front area (19) of the first section (16) and the second section (17), the engaging elements (18) being arranged only in the two engagement areas (20, 21) to allow a radial movement of the lower ring (9) capable of facilitating the passage of a part of the second section (17) on each side of the engaging collar (5) during the movement of the second section (17) between the lowered position and the released position.

Capping device intended to be fixed on a neck (2) of a container that includes an orifice (3) and an engaging collar (4), including the capping device:

• a cap (1) including an upper wall (13) and an outer peripheral skirt (14), the outer peripheral skirt (14) having a helical thread (7) intended to cooperate with a helical thread (6) formed on the neck (2) to allow:
• an unscrewing of the cap (1) of the neck (2) around an axis X to move the cap (1) from a closed position in which the upper wall (13) closes the orifice (3) of the neck (2) and the peripheral skirt surrounds said neck (2) towards a released position in which the cap (1) is no longer engaged with the neck (2);
• and
• a screwing of the cap (1) into the neck (2) to move the cap (1) from the released position to the closed position;
• a lower ring (9) axially fixed to the neck (2) and rotatably movable on the neck (2) around said axis X, said lower ring (9) including a first section (16) that includes engaging elements (18) that radially project into the lower ring (9) and are intended to be arranged below the engaging collar (4) to axially retain the lower ring (9) in the neck (2) of the container, the first section (16) and the second section (17) of the lower ring (9) being articulated to each other so that the second section (17) rotates with respect to the first section (16) between a lowered position in which the second section (17) is intended to be arranged below the engaging collar (4) and a raised position in which the second section (17) is intended to be arranged at least partially above the engaging collar (4);
• a hinge device that attaches the cap (1) to the second section (17) of the lower ring (9) and is configured to allow the cap (1) to rotate between the released position and an open tilted position in which the cap (1) is disengaged from the orifice (3) of the neck (2), the hinge device extends over a first angular range which is cut into two equal parts by a bisection plane Pb;
• the lower ring (9) being configured so that the second section (17) rotates with respect to the first section (16) from the lowered position to the raised position to allow the cap (1) to move from the closed position to the released position;
• the lower ring (9) being able to move radially from front to back to facilitate the passage of a part of the second section (17) on each side of the engaging collar (4) during the movement of the second section (17) between the lowered position and the released position;
• position.
• the helical thread (7) developing around the axis X according to a first direction and having a lower end and an upper end, the lower end of the helical thread (7) being arranged in a second angular range defined between the bisection plane Pb and a radial plane positioned at 160° from the bisection plane Pb according to a second direction opposite to the first direction.