초록 ▼

The present invention relates to container and a closure for mounting on the container, the container of the type comprising a container body having a base and a side wall with a top edge defining a container opening opposite the base. The container further comprises a rim and a locking rib which pr

The present invention relates to container and a closure for mounting on the container, the container of the type comprising a container body having a base and a side wall with a top edge defining a container opening opposite the base. The container further comprises a rim and a locking rib which projects from a free end of the rim, and the closure comprises a top wall and a skirt having a closure flange which projects from a free end of the closure wall for snap engagement under the locking rib when the closure is inserted into the container opening. The present invention ensures that a strong seal is maintained between the closure and the container so that the container can be opened and closed frequently without leakages between the container and the closure.

대표청구항 ▼

1. A container comprising: a container body having a base and a side wall with a top edge defining a container opening opposite the base,a rim spaced apart from the side wall by a container flange, the container flange extends from below the top edge of the container outwardly of the container body

1. A container comprising: a container body having a base and a side wall with a top edge defining a container opening opposite the base,a rim spaced apart from the side wall by a container flange, the container flange extends from below the top edge of the container outwardly of the container body from an exterior wall surface of the container side wall, and the rim projects from the container flange and extends above the top edge of the container side wall,in which the rim and container flange extend around an exterior wall surface of the container to define, with a portion of an exterior wall surface of the container side wall, a substantially U-shaped channel at the top edge of the container side wall,a locking rib which extends around the perimeter of the rim and projects from a free end of the rim above the top edge of the container side wall, anda closure for mounting on the container body, the closure having a top wall and a skirt which extends downwardly from a peripheral edge of the top wall, the skirt including a closure wall and a biasing element for sealing the closure wall against an interior wall surface of the container side wall, and a closure flange which projects from a free end of the closure wall for snap engagement under the locking rib and above the U-shaped channel when the closure is inserted into the container opening,in which the distance between the locking rib and the top edge of the container is greater than a thickness of the free end of the closure flange which locks under the locking rib, andin which at least one sealing rib is provided for engagement with a rib receiving channel, the sealing rib and rib receiving channel are located so that, when engaged, align and center the closure on the container when the closure is mounted on the container. 2. The container as claimed in claim 1, in which the at least one sealing rib is provided on an interior wall surface of the container side wall and the rib receiving channel is formed in a facing surface of the closure wall. 3. The container as claimed in claim 1, in which the container is an integrally formed container. 4. The container as claimed in claim 1, in which when the closure is inserted onto the container the rim pivots so that the closure flange engages against and slides under the locking rib to enable the closure flange to seat on or slightly above the top edge of the container side wall and under the locking rib. 5. The container as claimed in claim 1, in which the closure forms a plug for insertion into the container opening. 6. The container as claimed in claim 1, in which the closure flange comprises a plurality of through slots. 7. The container as claimed in claim 6, in which a tamper evident seal in the form of a thin plastic membrane extends across each slot. 8. The container as claimed in claim 1, in which a portion of the top wall of the closure and the locking rib are substantially diametrically level when the closure is mounted on the container. 9. The container as claimed in claim 1, in which the rim and container flange do not extend fully around the container side wall to define a cut-away portion in the rim. 10. The container as claimed in claim 9, in which a substantially hook shaped external seating flange projects from a free end of the top edge of the container side wall in the region of the cut-away portion. 11. The container as claimed in claim 10, in which an actuating lever having a locking projection formed on an inner surface thereof depends from a free end of the closure flange. 12. The container as claimed in claim 9, in which an actuating lever having a locking projection formed on an inner surface thereof depends from a free end of the closure flange. 13. The container as claimed in claim 12, in which the locking projection engages under a terminal end of the hook shaped seating flange to releaseably lock the closure to the container. 14. The container as claimed in claim 13, in which the closure is removed from the container by disengaging the locking projection from underneath the terminal end of the seating flange. 15. The container as claimed in claim 12, in which the closure is removed from the container by disengaging the locking projection from underneath the terminal end of the seating flange. 16. The container as claimed in claim 9, in which a removable tamper evident strip is mounted to the container substantially adjacent the hook shaped seating flange and proximal to a free end of the actuating lever. 17. The container as claimed in claim 9, in which the container and closure are substantially square shaped. 18. The container as claimed in claim 1, in which the rim and container flange do not extend fully around the container side wall to define a receiving notch for a closure actuating button formed on the closure wall. 19. The container as claimed in claim 18, in which a tamper evident strip extends across the closure actuating button. 20. The container as claimed in claim 19, in which a locking flange projects from the closure wall on each side of the closure actuating button, each locking flange engaging under the locking rib when the closure is mounted on the container. 21. The container as claimed in claim 18, in which a locking flange projects from the closure wall on each side of the closure actuating button, each locking flange engaging under the locking rib when the closure is mounted on the container.