Abstract: A mechanical closure for includes a cap hinged in an oscillating manner about an axis, a pair of tie-rods respectively articulated at their first end on opposite sides of the cap with respect to the axis and hinged at their opposite second end on a corresponding first end of a respective arm. Each arm is provided at its second opposite end with a respective pin the pins being coaxial and intended to hinge the arms on a neck of a bottle. An arc connects the arms to one another so that the arms may be jointly actuated to rotate about the respective pin. The mechanical closure includes a tamper indicator provided to indicate the first opening of the mechanical closure includes a band which interconnects the arms and/or the tie-rods on the side opposite the arc so as to prevent the arms from oscillating about the respective pins.

Abstract: A mechanical closure for includes a cap hinged in an oscillating manner about an axis, a pair of tie-rods respectively articulated at their first end on opposite sides of the cap with respect to the axis and hinged at their opposite second end on a corresponding first end of a respective arm. Each arm is provided at its second opposite end with a respective pin, the pins being coaxial and intended to hinge the arms on a neck of a bottle. An arc connects the arms to one another so that the arms may be jointly actuated to rotate about the respective pin. The mechanical closure includes a tamper indicator provided to indicate the first opening of the mechanical closure includes a band which interconnects the arms and/or the tie-rods on the side opposite the arc so as to prevent the arms from oscillating about the respective pins.