Mechanical closure for bottles

A mechanical closure for a bottle comprising:

• 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 being provided at its second opposite end with a respective pin, the pins being coaxial and intended to hinge the arms on a neck of the bottle,
• the arms being connected to one another by an arc provided so that the arms may be jointly actuated to rotate about the respective pin,
• a tamper indicator provided to indicate the first opening of the mechanical closure;
• wherein the tamper indicator comprises 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, wherein the band is interconnected at its opposite ends in respective seats provided in each of the arms and/or tie-rods and wherein the seats are through-seats, the ends of the band each being provided with a one-way locking member in order to engage the respective seats.

A mechanical closure for a bottle comprising:

• 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 being provided at its second opposite end with a respective pin, the pins being coaxial and intended to hinge the arms on a neck of the bottle,
• the arms being connected to one another by an arc provided so that the arms may be jointly actuated to rotate about the respective pin,
• a tamper indicator provided to indicate the first opening of the mechanical closure;
• wherein the tamper indicator comprises a band which interconnects the arms between their first and second ends on a side opposite the arc so as to prevent the arms from oscillating about the respective pins.