Abstract: An articulated structure to connect a cover to a support, which may be installed on a container or is formed from a single piece with an opening section of the container, comprising an articulated joint to guide the cover between a closed position and an open position with a pivot point situated on the outer side of the cover and/or the support, and an elastomer spring part, which grips the outer side of the cover as well as the support and is prestressed at least in the closed position of the cover under tension, characterized in that a force application point of the elastomer spring part to the cover and/or to the support at least in the closed position of the cover is displaced to the outside beyond the pivot point of the articulated joint.

Abstract: A fluid dispenser head for associating with a fluid reservoir (1), the head having: a stationary base (2) formed by, or for mounting on, the reservoir; a rotary actuator element (3) mounted in rotary manner on the base (2) so as to turn about an axis of rotation between two extreme abutment positions; and a dispenser orifice (30) that can be closed selectively by turning the element on the base. The two extreme abutment positions define two open positions of the dispenser orifice separated by at least one position in which the dispenser orifice is closed. The dispenser orifice (30) is situated on the axis of rotation of the element on the base.

Abstract: An articulated structure to connect a cover to a support, which may be installed on a container or is formed from a single piece with an opening section of the container, comprising an articulated joint to guide the cover between a closed position and an open position with a pivot point situated on the outer side of the cover and/or the support, and an elastomer spring part, which grips the outer side of the cover as well as the support and is prestressed at least in the closed position of the cover under tension, characterized in that a force application point of the elastomer spring part to the cover and/or to the support at least in the closed position of the cover is displaced to the outside beyond the pivot point of the articulated joint.

Abstract: A fluid dispenser head for associating with a fluid reservoir (1), said head comprising: a stationary base (2) formed by, or for mounting on, said reservoir; a rotary actuator element (3) mounted in rotary manner on the base (2) so as to turn about an axis of rotation between two extreme abutment positions; and a dispenser orifice (30) that can be closed selectively by turning the element on the base, the dispenser head being characterized in that the two extreme abutment positions define two open positions of the dispenser orifice separated by at least one position in which the dispenser orifice is closed, and in that the dispenser orifice (30) is situated on the axis of rotation of the element on the base.