| 摘要 |
The invention relates to a reclosable pouring element for composite cardboard/plastic packaging, particularly packaging for beverages, consisting of a shell element (1) that has a continuous fixing flange (5), an outer thread (4) and an inner thread (6), a cutting element (2) that has an outer thread (7), and a screw lid (3) with an inner thread (16). After injection moulding, the cutting element (2) is moulded on the shell element in one piece at the opposite end of the shell element (1) from the fixing flange (5). When the pouring element is assembled, the cutting element (2) is situated inside the shell element (1). The outer thread (7) of the cutting element (2) consists of two thread sections comprising two respective thread turns (7A, 7A' and 7B, 7B' ), which extend approximately around a quarter of the periphery of the cutting element (2) and have a gradient that is steeper than the inner thread (16) of the screw lid (3). The inner thread (6) of the shell element (1) consists of two thread sections (6A and 6B), each extending approximately around half the periphery and having a gradient that corresponds to that of the outer thread (7) of the cutting element (2). The lower inner periphery of the shell element (1) has a continuous lip (8) that is oriented downwards and the cutting element (2) has a groove (10) in the vicinity of the outer thread (7) that runs parallel to the lip (8) and is designed to receive said lip (8). |
