Container opening and protective cap

Details Container opening and protective cap Container opening and protective cap

B - Operations, Transporting

65

D

B65D 41/34 (2006.01) B65D 41/36 (2006.01)

Patent

CA 2249734

The invention relates to a container opening (1) having on the outside (2) cams (5) protruding radially outwards which can be engaged with retaining elements, in particular recesses (21) of the tamper-indicating strip (22) of a protective cap (20). The cams (5) and the recesses (21) each have a lateral retaining surface (6, 25) and a lower retaining surface (7, 26). If the tamper- indicating strip (22) is engaged via its recess (21) with the cam (5), it cannot move vertically or towards the periphery. To tighten the tamper- indicating strip (22) during the screwing-on process, expansion members (10, 11, 13) are also arranged above the cams (5) which expand the tamper- indicating strip (22) slowly and steadily.

L'invention concerne un orifice de contenant (1) présentant, sur ses faces extérieures, des cames (5) faisant saillie vers l'extérieur dans le sens radial et pouvant venir en contact avec des éléments de retenue, notamment des évidements (21) de la bande (22) garantissant l'inviolabilité d'un bouchon de fermeture (20). Les cames (5) et les évidements (21) présentent chacun une face de retenue latérale (6, 25) et un face de retenue inférieure (7, 26). Lorsque la bande (22) est mise en contact par son évidement (21) avec la came (5), elle ne peut se déplacer ni dans le sens vertical ni dans le sens périphérique. Pour serrer la bande (22) lors du vissage du bouchon, des éléments d'élargissement (10, 11, 13) sont disposés au-dessus des cames (5) pour permettre un élargissement lent et régulier de la bande (22).

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