Abstract: The invention relates to a cap for the neck of a container and to a method for producing one such cap. According to the invention, the skirt (12) of the cap (1) is provided with frangible bridge elements (44A, 44B) which break when the cap is first opened. In addition, on either side of the aforementioned frangible bridge elements, the skirt includes a non-removable part and a removable part provided with an outer biasing tab (24) that only extends along a peripheral portion (12A) of the skirt. In order to limit the biasing force of the tab, so as to release the removable skirt part, the radial dimension (e44A) of the bridges (44A) located in the skirt portion (12) associated with the tab is smaller than the radial dimension (e44B) of the bridges (44B) located outside said portion.

Abstract: A cap for a container neck includes a tubular skirt defining a longitudinal central axis, and a plurality of longitudinal ribs distributed around a periphery of the skirt, each having a free supporting end for the pad of at least one finger of a user. The plurality of ribs on the skirt includes main ribs and secondary ribs, the supporting ends of the main ribs having a radius of curvature greater than a radius of curvature of the supporting ends of the secondary ribs. At least one of the secondary ribs is arranged between the main ribs. A tamperproofing strip, centered on the axis, is connected to the skirt by a weakening line designed to break when the cap is first opened. The tamperproofing strip includes longitudinal ribs distributed around the outer periphery of the strip, each with a free supporting end for the pad of at least one finger.

Abstract: The invention relates to a cap for the neck of a container and to a method for producing one such cap. According to the invention, the skirt (12) of the cap (1) is provided with frangible bridge elements (44A, 44B) which break when the cap is first opened. In addition, on either side of the aforementioned frangible bridge elements, the skirt includes a non-removable part and a removable part provided with an outer biasing tab (24) that only extends along a peripheral portion (12A) of the skirt. In order to limit the biasing force of the tab, so as to release the removable skirt part, the radial dimension (e44A) of the bridges (44A) located in the skirt portion (12) associated with the tab is smaller than the radial dimension (e44B) of the bridges (44B) located outside said portion.