Paper container with increased strength

Abstract

The utility model discloses a paper container with increased strength, which is made of a one-piece paper sheet, the one-piece paper sheet comprises a bottom and a side part, the side part is provided with a plurality of spaced indentation lines, the tail end of the side part is arranged to be an end edge, the end edge comprises a first end edge and a second end edge, and the first end edge and the second end edge are arranged on the bottom of the one-piece paper sheet. Cutting the second end edge to form a plurality of inclined sheets having inclination with the indentation line of the first end edge, wherein the plurality of inclined sheets surround the first end edge to form an inclined sheet area; when the inclined sheet is folded inwards to the second end edge, the inclined sheet presses the indentation line of the first end edge to be pressed and fixed; and when the inclined sheet is folded inwards to the side part, the inclined sheet presses the first end edge and the indentation line of the side part to be pressed and fixed. According to the utility model, the connection strength can be increased, so that the whole paper container is firmer.

Description

Technical Field

[0001] The utility model relates to the field of paper containers, in particular to a paper container with increased strength. Background Art

[0002] Paper containers, such as paper plates and bowls, are convenient and can be used to hold Western dishes, bread, cakes, and snacks. Compared to ceramic containers, paper containers offer advantages such as lightness, low cost, portability, and safety, while plastic containers are heat-resistant and pollution-free. Consequently, paper containers are widely used.

[0003] A traditional paper container, see Figure 1 As shown, it is made of a single piece of paper, comprising a bottom 1' and a side 2', with the bottom 1' positioned in the middle and the side 2' surrounding the bottom 1. The side 2' has multiple spaced indentations 21', with the ends of the side 2' formed into an edge. When the paper container is made, the indentations on the side are formed by extrusion and folding, and the ends of the edge are rolled into a curled edge. However, this method of forming the indentations by extruding them into folds does not result in a fully destructive bond, but only a pseudo-bond, resulting in a weak connection. Utility Model Content

[0004] In view of this, in order to solve the above technical problems, the purpose of the present invention is to provide a paper container with increased strength, which can increase the connection strength and make the entire paper container more secure.

[0005] The technical solutions adopted are:

[0006] A paper container with increased strength is made of a single piece of paper, the single piece of paper comprising a bottom and a side portion, the side portion having a plurality of spaced indentation lines, an end edge being arranged at the end of the side portion, the end edge comprising a first end edge and a second end edge, the second end edge being cut into a plurality of oblique pieces having an inclination with the indentation lines of the first end edge, the plurality of oblique pieces surrounding the first end edge forming an oblique piece area; when the oblique piece is folded inwardly to the second end edge, the oblique piece presses the indentation lines of the first end edge for pressing and fixing; when the oblique piece is folded inwardly to the side portion, the oblique piece presses the first end edge and the indentation lines of the side portion for pressing and fixing.

[0007] Furthermore, the oblique pieces are oblique square pieces.

[0008] Furthermore, the first end edge includes a third end edge and a fourth end edge, the fourth end edge is bent upward to form a first arc portion, the oblique piece is folded inward to the third end edge, and the curling edge formed by the fourth end edge and the oblique piece is an inverted D shape as a whole.

[0009] Furthermore, the first end edge includes a third end edge and a fourth end edge, the fourth end edge is bent upward to form a first semicircular portion, the oblique piece includes a first oblique piece and a second oblique piece, the first oblique piece is folded inward and bent downward to form a second semicircular portion, and the second oblique piece extends to the third end edge; the curled edge formed by the fourth end edge and the first oblique piece is circular as a whole.

[0010] Furthermore, the first end edge includes a third end edge and a fourth end edge, the fourth end edge is bent upward to form a first arc-shaped portion, the oblique piece includes a first oblique piece and a second oblique piece, the first oblique piece is folded inward and bent downward to form a second arc-shaped portion, and the second oblique piece extends to the third end edge; the curling edge formed by the fourth end edge and the first oblique piece is teardrop-shaped as a whole.

[0011] Furthermore, the oblique sheets are folded inwardly to form two or three layers and then flattened and fixed.

[0012] Furthermore, the first end edge includes a third end edge and a fourth end edge, the fourth end edge is bent upward to form a first arc-shaped portion, the oblique piece includes a first oblique piece and a second oblique piece, the first oblique piece is folded inward and bent upward to form a second arc-shaped portion, and the second arc-shaped portion is pressed on the first arc-shaped portion; the second oblique piece extends to the third end edge.

[0013] Furthermore, the oblique piece is folded downward to form a triangular curled edge.

[0014] The beneficial effects of the present invention are:

[0015] Compared with traditional paper containers, such as paper plates, which are squeezed into the shape of a plate by indentation lines, there is no fully destructive bond, only a false bond. The utility model divides the end edge into a first end edge and a second end edge, and cuts the second end edge into a plurality of oblique pieces with an inclination to the indentation line of the first end edge. The plurality of oblique pieces surround the first end edge to form an oblique piece area; when the oblique piece is folded inward to the second end edge, the oblique piece presses the indentation line of the first end edge and fixes it; when the oblique piece is folded inward to the side, the oblique piece presses the indentation line of the first end edge and the side and fixes it. This is a destructive strong bond, in which the indentation line of the first end edge, or also the indentation line of the side, is pressed and fixed by the oblique piece, and is strongly "welded" (i.e., strongly bonded), and has the tower connection of two layers of paper pieces, so that the strength can be very effectively improved, making the overall paper container more solid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a structural schematic diagram of a paper container in the background art when it is unfolded.

[0018] Figure 2 This is a schematic structural diagram of the end edge of a paper container in Example 1 when unfolded.

[0019] Figure 3 This is a structural schematic diagram of a paper container in Example 1 in which the oblique pieces are folded inward and extended to the sides.

[0020] Figure 4 This is a schematic structural diagram of a paper container in Example 1.

[0021] Figure 5 This is a schematic structural diagram of another paper container of Example 1.

[0022] Figure 6 This is a schematic structural diagram of a paper container in Example 2.

[0023] Figure 7 This is a schematic structural diagram of a paper container in Example 3.

[0024] Figure 8 This is a schematic structural diagram of a paper container in Example 4.

[0025] Figure 9 This is a schematic structural diagram of a paper container in Example 5.

[0026] Figure 10 This is a schematic structural diagram of a paper container in Example 6.

[0027] In the figure, the correspondence between the serial numbers and feature names is as follows:

[0028] 1- bottom; 2- side; 21- indentation line; 22- end edge; 23- first end edge; 24- second end edge; 25- oblique piece; 26- third end edge; 27- fourth end edge. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 2 and Figure 5 As shown, a paper container with increased strength is made of a one-piece paper sheet, which includes a bottom 1 and a side 2, the side 2 having a plurality of spaced indentation lines 21, an end edge 22 is provided at the end of the side 2, the end edge 22 includes a first end edge 23 and a second end edge 24, the second end edge 24 is cut into a plurality of oblique pieces 25 having an inclination with the indentation line of the first end edge 23, and the plurality of oblique pieces 25 surround the first end edge 23 to form an oblique piece area; when the oblique piece 25 is folded inward to the first end edge 23, the oblique piece 25 presses the indentation line 21 of the first end edge 23 and is pressed and fixed; when the oblique piece 25 is folded inward to the side 2, the oblique piece 25 presses the first end edge 23 and the indentation line 21 of the side 2 and is pressed and fixed.

[0032] See also Figure 4 and Figure 5 Two specific embodiments are shown. In the first embodiment, when the oblique piece 25 is folded inward to the first end edge 23, the oblique piece 25 presses against the indentation line 21 of the first end edge 23 to be pressed and fixed. In the second embodiment, when the oblique piece 25 is folded inward to the side portion 2, the oblique piece 25 presses against the first end edge 23 and the indentation line of the side portion 25 to be pressed and fixed.

[0033] Both embodiments can achieve increased connection strength. The following embodiments are described with reference to the first embodiment, but are also applicable to the second embodiment.

[0034] Whether it is the first specific embodiment or the second specific embodiment, a plurality of oblique pieces with an inclination to the indentation line of the first end edge are cut out, and then the indentation line of the first end edge, or the indentation line of the side, is folded inward and pressed and fixed by the oblique pieces, and is strongly "welded" (i.e., strongly bonded), and has a tower connection of two layers of paper sheets, which is a destructive strong bond, so that the strength can be very effectively improved, making the overall paper container more secure.

[0035] The pressing and fixing may be, for example, ultrasonic pressing and fixing, or physical pressing and fixing such as heat pressing and fixing.

[0036] Taking the first specific implementation as an example, the oblique tablet is selected as the oblique pressing tablet.

[0037] In this embodiment, the first end edge 23 includes a third end edge 26 and a fourth end edge 27. The fourth end edge 27 is bent upward to form a first arc portion. The oblique piece 25 is folded inward to the third end edge 26. The curling edge formed by the fourth end edge 27 and the oblique piece 25 is an inverted D shape as a whole.

[0038] Example 2

[0039] Referring to Example 1, the difference from Example 1 is that Figure 6 As shown, the first end edge 23 includes a third end edge 26 and a fourth end edge 27, and the fourth end edge 27 is bent upward to form a first semicircular portion. The oblique piece 25 includes a first oblique piece and a second oblique piece, and the first oblique piece is folded inward and bent downward to form a second semicircular portion, and the second oblique piece extends to the third end edge; the curling edge formed by the fourth end edge and the first oblique piece is circular as a whole.

[0040] Example 3

[0041] Referring to Example 1, the difference from Example 1 is that Figure 7 As shown, the first end edge 23 includes a third end edge 26 and a fourth end edge 27, and the fourth end edge 27 is bent upward to form a first arc-shaped portion. The oblique piece 25 includes a first oblique piece and a second oblique piece, and the first oblique piece is folded inward and bent downward to form a second arc-shaped portion, and the second oblique piece extends to the third end edge; the curling edge formed by the fourth end edge and the first oblique piece is teardrop-shaped as a whole.

[0042] Example 4

[0043] Referring to Example 1, the difference from Example 1 is that Figure 8 As shown, the oblique sheet 25 is folded inwardly to form two or three layers and then flattened and fixed. In this embodiment, it is folded into three layers and then flattened and fixed.

[0044] Example 5

[0045] Referring to Example 1, the difference from Example 1 is that Figure 9 As shown, the first end edge 23 includes a third end edge 26 and a fourth end edge 27, and the fourth end edge 27 is bent upward to form a first arc-shaped portion. The oblique piece 25 includes a first oblique piece and a second oblique piece. The first oblique piece is folded inward and bent upward to form a second arc-shaped portion, and the second arc-shaped portion is pressed on the first arc-shaped portion; the second oblique piece extends to the third end edge.

[0046] Example 6

[0047] Referring to Example 1, the difference from Example 1 is that Figure 10 As shown, the diagonal piece 25 is folded downward to have a triangular curled edge.

[0048] It should be noted that in the description of this utility model, the directions or positional relationships indicated by the terms "inward" and "downward" are based on the attached Figure 2 The orientations or positional relationships generally shown are only for the convenience of describing the present invention and for ease of understanding, and are not intended to indicate or imply that the components referred to must have a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paper container with increased strength, characterized in that: It is made of a single piece of paper, which includes a bottom and a side. The side has a plurality of spaced indentation lines, and an end edge is set at the end of the side. The end edge includes a first end edge and a second end edge. The second end edge is cut into a plurality of oblique pieces with an inclination to the indentation line of the first end edge. The plurality of oblique pieces surround the first end edge to form an oblique piece area; when the oblique piece is folded inward to the first end edge, the oblique piece presses the indentation line of the first end edge and is pressed and fixed; when the oblique piece is folded inward to the side, the oblique piece presses the first end edge and the indentation line of the side and is pressed and fixed.

2. The paper container with increased strength according to claim 1, characterized in that: The oblique pieces are oblique square pieces.

3. The paper container with increased strength according to claim 1, wherein: The first end edge includes a third end edge and a fourth end edge, the fourth end edge is bent upward to form a first arc portion, the oblique piece is folded inward to the third end edge, and the curling edge formed by the fourth end edge and the oblique piece is an inverted D shape as a whole.

4. The paper container with increased strength according to claim 1, wherein: The first end edge includes a third end edge and a fourth end edge, the fourth end edge is bent upward to form a first semicircular portion, the oblique piece includes a first oblique piece and a second oblique piece, the first oblique piece is folded inward and bent downward to form a second semicircular portion, and the second oblique piece extends to the third end edge; the curled edge formed by the fourth end edge and the first oblique piece is circular as a whole.

5. The paper container with increased strength according to claim 1, wherein: The first end edge includes a third end edge and a fourth end edge, the fourth end edge is bent upward to form a first arc-shaped portion, the oblique piece includes a first oblique piece and a second oblique piece, the first oblique piece is folded inward and bent downward to form a second arc-shaped portion, and the second oblique piece extends to the third end edge; the curling edge formed by the fourth end edge and the first oblique piece is teardrop-shaped as a whole.

6. The paper container with increased strength according to claim 1, wherein: The oblique sheets are folded inwardly to form two or three layers and then flattened and fixed.

7. The paper container with increased strength according to claim 1, wherein: The first end edge includes a third end edge and a fourth end edge, the fourth end edge is bent upward to form a first arc-shaped portion, the oblique piece includes a first oblique piece and a second oblique piece, the first oblique piece is folded inward and bent upward to form a second arc-shaped portion, the second arc-shaped portion is pressed on the first arc-shaped portion; the second oblique piece extends to the third end edge.

8. The paper container with increased strength according to claim 1, wherein: The oblique piece is folded downward to have a triangular curling edge.

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