| 摘要 |
An easy-to-pull-off bottle cap comprising a bottle cap main body (1), a pull-ring (2), and a connecting piece (11). The connecting piece (11) is connected at one end thereof to the pull-ring (2) and is connected at the other end to a side edge (3) of the bottle cap main body (1). The outer edge (4) of the pull ring (2) is circular, while the inner edge (5) is either circular or elliptic. The center of the outer edge (4) of the pull-ring and the center of the inner edge (5) of the pull-ring are not at a same location. The radius of the outer edge (4) of the pull-ring is greater than the radius of the inner edge (5) of the pull-ring. The bottle cap main body (1) is provided at an end surface thereof with an indented area (6) to accommodate the pull-ring (2). The bottle cap main body (1), the pull-ring (2), and the indented area (6) are an integral body without parts added thereto by means of using external attachment, also, when stacked, the pull-ring (2) and the indented area (6) are in a same horizontal level with the end surface of the bottle cap main body (1) and do not form a protrusion part on the bottle cap end surface, thus facilitating industrialized mass production. |
