| 摘要 |
<p>The invention provides a child-resistant container and closure assembly comprising: a container neck (100) having a first screw thread (10) and two first locking elements (104) located below said first screw thread on opposite sides of the neck; and a closure (200) for the neck having a second screw thread (206) complementary to the first screw thread, a resiliently deformable skirt (204), and two second locking elements (210) on opposite sides of the resiliently deformable skirt, wherein the first and second locking elements mutually engage in ratchet fashion when the closure is screwed onto a fully engaged position on the container neck and subsequently block unscrewing of the closure unless a radial pressure is applied to the skirt at positions spaced from the locking elements to deform the skirt to release the locking elements, characterised in that the first and second threads are two-start, fast-turn threads, whereby the closure can be moved from a substantially fully disengaged position to a substantially fully engaged position on the neck by rotation through about 180° or less. Preferably, the container and closure threads are substantially continuous and steeply pitched. Preferably the assembly further comprises a tamper-evident ring (214) attached to the resilient skirt.</p> |
