| 摘要 |
A tamper-proof and easy-open sealing type food container includes a container body and a lid. A peripheral wall of the container body has at least one recessed wall portion disposed in one corner thereof and formed a retracted external space area and concave camber between the recessed wall portion and a hem. A pull tab extends from outside of a sealing rib that can be inserted into the concave camber. Moreover, there are two tamper-proof structures disposed on the lid. The first is that the first score line has to be poked through, and the second is the second score line needs to be torn off when opening the lid. When either structure is tampered, it could be easily distinguished, which ensures the integrity, safety, and qualities of the food inside the container. With these features plus its sealing effect, the present invention has dual function of tamper-proofing and easy-opening. |
| 主权项 |
1. A tamper-proof and easy-open sealing type food container, comprising
a container body comprising a bottom wall, a peripheral wall upwardly extended from the border of said bottom wall, and a first sealing rib extending along the border of a top edge of said peripheral wall, said first sealing rib comprising a first horizontal sealing face, a first vertical sealing face upwardly extended from said first horizontal sealing face and a hem outwardly extended from said first vertical sealing face; a lid comprising a top wall and a rim downwardly extended from said top wall along the border thereof and a second sealing rib extending around said rim to fit said first sealing rib, said second sealing rib comprising a second horizontal sealing face for abutting against said first horizontal sealing face, a second vertical sealing face for abutting against said first vertical sealing face and a flange edge outwardly extending from said second vertical sealing face; said peripheral wall of said container body has at least one recessed wall portion disposed in one corner thereof and defining a retracted external space area between said recessed wall portion and said hem, a recessed third sealing rib extended from said first sealing rib, a lip disposed at an outer side relative to said recessed third sealing rib and a concave camber formed between said lip and said hem; said lid comprises a fourth sealing rib extended from said second sealing rib for abutment against said third sealing rib rim of said lid and a pull tab extended from an outer side of said fourth sealing rib and inserting into above said concave camber; wherein said retracted external space area between said recessed wall portion and said hem is arranged at either side of the corner at the rear of the container body; at the rear side of said lid and said container body, a flexible hinge is arranged, either side of which is close to said retracted external space area, and the bottom of which is joined to the edge of said hem of the container body while the top of which is joined to the lid with a pre-arranged second score line that could be torn off; the area of said hem does not cover said flexible hinge, forming a C shape protrusive hem with a vertical inner side, said inner side of the protrusive hem and first vertical sealing face have a plane surface in-between in accordance with shapes of said flange edge, making the bottom line of said inner side of the protrusive hem corresponding with a fringe of said flange edge when closing up said plane surface; and said pull tab is joined to said flange edge and also covers said concave camber, disposing the fringe of said concave camber close to the bottom line of said inner side of the protrusive hem, and on the pull tab there is a first score line pre-arranged which provides a retaining lug for fingers to hook into when poking through the pull tab along the score lines; whereby the lid is sealed on said container body with the pull tab covering said concave camber so as to form the first tamper-proof structure, and the flexible hinge at the rear side of said lid and said container body is the second one as the pull tab has to be poked through along the first score line when opening the lid, and then a finger has to hook into the retaining lug upwardly to tear off the second score line of the flexible hinge joined to the pull tab so that the lid could be totally removed from the container body. |
