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Paper box

a paper box and rubber band technology, applied in the field of lunch boxes, can solve the problems of ineffective closing of the paper box with the rubber band, food can be leaked from the interior of the paper box or contaminated, and the problem of frequent encounter

Inactive Publication Date: 2016-06-02
U BEST MARKETING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention aims to provide a reliable paper box that can safely contain food.

Problems solved by technology

However, a problem is often encountered during the use of the paper box.
Some of the food can be leaked from the interior of the paper box or contaminated by impurities from the exterior of the paper box.
However, the closing of the paper box with the rubber band 6 is ineffective.
The binding of the paper box with the rubber band 6 is troublesome.
The use of the rubber band 6 adds to the cost of packing the food.

Method used

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Experimental program
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first embodiment

[0019]Referring to FIGS. 3 through 5, a paper box includes a bowl 30 connected to a cover 40 according to the present invention. The bowl 30 includes a front wall 31 and two lateral walls 34. The front wall 31 is made with two cutouts 32 so that a flexible tongue 33 is formed between the cutouts 32. A lateral fin 35 extends from an upper edge of each one of the lateral walls 34. Each of the lateral fins 35 is made with a C-shaped slit 36 so that a flexible tab 37 is formed by the slit 36.

[0020]The cover 40 includes a front fin 41 and two lateral edges (not numbered). The front fin 41 is made with a C-shaped slit 42 so that a flexible tab 43 is formed by the slit 42. The flexible tab 43 is substantially identical to the flexible tabs 37. Each of the lateral edges of the cover 40 is made with two cutouts 45 so that a flexible tongue 46 is formed between the cutouts 45. The flexible tongues 46 are substantially identical to the flexible tongue 33.

[0021]Referring to FIG. 3, food (not sh...

second embodiment

[0025]Referring to FIGS. 6 and 7, there is a paper box according to the present invention. The second embodiment is like the first embodiment except for several features. Firstly, the cover 40 includes two lateral fins 47 substantially identical to the lateral fins 35. Secondly, each lateral wall 34 does not include any fin. Each lateral wall 34 includes two cutouts 45 so that a flexible tongue 46 is formed between the cutouts 45.

[0026]The lateral edges of the cover 40 do not bulge since the lateral fins 47 are restrained by the flexible tongues 46, which are inserted in the slits 36 and restrained by the lateral fins 47 and the flexible tabs 36. Hence, there is no large gap between each lateral fin 47 and the corresponding lateral edge of the bowl 30. The food is kept in the paper box and contaminants are kept out of the paper box.

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PUM

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Abstract

A paper box includes a box, a cover and two buckles. The box includes two lateral edges. The cover is linked to the box and formed with two lateral edges. Each buckle connects a corresponding lateral edge of the cover to a corresponding one of the lateral edges of the box. Each buckle includes a flexible tongue and a slit for receiving the flexible tongue.

Description

BACKGROUND OF INVENTION[0001]1. Field of Invention[0002]The present invention relates to a lunch box and, more particularly, to a paper box for containing food.[0003]2. Related Prior Art[0004]Referring to FIGS. 1 and 2, a conventional paper box includes a bowl 1 connected to a cover 2. The bowl 1 includes a front wall 11 made with two cutouts 12 so that a flexible tongue 13 is formed between the cutouts 12. The cover 2 includes a front fin 21 cut with a C-shaped slit 22 so that a flexible tab 23 is formed by the slit 22. In use, the cover 2 is laid down on the bowl 1, the front fin 21 is bent relative to the remaining portion of the cover 2, and the front fin 21 is inserted into the bowl 1, behind the front wall 11. The flexible tongue 13 is pressed on the flexible tab 23 to enlarge the slit 22, and the flexible tongue 13 is inserted into the slit 22, behind the front fin 21.[0005]However, a problem is often encountered during the use of the paper box. Referring to FIG. 2, two later...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D5/66B65D5/30B65D5/20
CPCB65D5/665B65D5/2052B65D5/6658B65D5/30B65D5/308B65D5/2057B65D5/6661B65D5/6664B65D5/66
Inventor CHEN, SIMON HUNG
Owner U BEST MARKETING