| 摘要 |
A closure for containers of liquid, particularly bottles, the closure comprises an anti-tamper pourer member 7 fitted into the container neck, the pourer having a pouring orifice 15 and valve means 8a, 8b, which allow liquid to leave the container 2 but not enter it. A cap 19 with a tubular sleeve 21, the sleeve 21 extends axially along the outside of the container neck 1, for opening and closing the pouring orifice 15, and a security cap 25 disposed over the cap 19 covering the sleeve 21 and extending around the outer wall 4 of the container neck 1. Means 28, 29, 25a, are provided between the outer security cap 25, 26, and said tubular sleeve 21 as well as between the security cap 25, 26, and the pourer 7, 14a, for preventing relative movement and axial displacement. A circumferentially extending weakened zone 27 is provided in the security cap 25, 26, said zone 27 being breakable during the first opening of the cap 25, 26, the pourer is provided with a tubular body 14 which defines orifice 15, which is fitted concentrically on the outer wall of the container neck 1. Axial and radial engagement means 6, 18, 5, 17, are provided between said tubular body 14 and the outer wall of the container neck 1, and threaded means 22, 23, are located between the outer wall of the said tubular body 14 and the inside wall of said tubular sleeve 21 of said cap. The weakened zone 27 of the security cap 25, 26, may be provided with a plurality of cuts located along a circumferential line, said cuts may be connected by breakable bridges. The sleeve 21 of said cap 19 may be provided with a thickened annular portion 21b at its free edge 21a, the annular portion 21b may extend axially between said free edge 21a and a position substantially underlying the weakened zone 27, and may increase the thickness of its cross section in the direction towards said free edge 21a of the sleeve 21. The thickened annular portion 21b, may be provided completely on the outer wall of said sleeve 21, and may be provided with a colour different from that of the security cap, and the security cap 25, 26, may be made of metallic sheet, or an aluminium sheet. |
