NESTED PAPER CUP

Abstract

 The invention solves a storage space problem of an existing nested paper cup. A nested paper cup comprising a cup body, a bottom of the cup body being provided with an annular foot, a liner is arranged on an inner side of the cup bottom, when two identical cup bodies above are nested along up and down direction, the internally nested cup body is an upper cup body , the cup body located outside the upper cup body is a lower cup body, and a annular foot of the upper cup body abuts against the top of the liner in the lower cup body and a space is formed by the annular foot and the side wall of the liner. When a food storage space needs to be adjusted, a manufacturer only needs to replace the liners with different heights to adjust the food storage space.

Description

TECHNICAL FIELD

[0001] The present invention belongs to the technical field of articles for daily use, and relates to a paper cup, and more particularly, to a nested paper cup.

BACKGROUND

[0002] Disposable paper cups have been widely used in various occasions, and the paper cups are nested and overlapped together for storage, which can save a lot of storage and transportation space. For the nested and overlapped paper cups, there is a certain interval between a bottom of a previous paper cup and a bottom of a next paper cup, some instant foods, such as milk powder, tea leaves and the like may be stored in the interval. However, a space formed by the interval is very small, and the interval is often minimized to the greatest extent in design to save a storage space. Therefore, the existing disposable paper cups are difficult to meet this demand.

[0003] At present, aiming at this demand, solutions in the field of food packaging may be referred, such as food product package having nested cup and cup holder of U.S. Patent Publication No. US2005/0220939A1. According to the solution, two cups with different sizes are adopted, an inner cup is nested in an outer cup, the inner cup is suspended in the outer cup through a convex edge of a cup rim, and a height of the inner cup is smaller than that of the outer cup, so that an enough food storage space is formed between a bottom of the inner cup and a bottom of the outer cup. A large storage space is capable of being implemented by nesting and overlapping such two cups with different sizes, but only one cup is actually used when the two cups with different sizes are used, and the other cup only increases an anti-scalding effect, which will lead to a high consumption cost, thus being not conducive to saving resources.

[0004] The above solution may be used in the field of disposable paper cups, but according to the above solution, the paper cups are made of plastic materials. After using paper materials, a concave-convex supporting structure on a side portion becomes very difficult in technology, and a supporting strength is also a factor to be considered.

SUMMARY

[0005] In view of the above problems in the prior art, the present invention provides a nested paper cup, and the technical problem to be solved is how to adjust a food storage space in the nested paper cup.

[0006] The present invention is implemented through the following technical solutions. A nested paper cup, comprising a cup body made of a paper material, a bottom of the cup body being provided with an annular foot, characterized in that a liner is arranged on an inner side of the cup bottom of the cup body, a bottom of the liner abuts against the cup bottom of the cup body, a side wall of the liner abuts against an inner side wall of the cup body and a top of the side wall of the liner protrudes from an inner side wall of the cup body, when two identical cup bodies above are nested along up and down direction, the internally nested cup body is an upper cup body, the cup body located outside the upper cup body is a lower cup body, and a annular foot of the upper cup body abuts against the top of the liner in the lower cup body and a space is formed by the annular foot and the side wall of the liner.

[0007] Through a matching structure of the annular foot and the liner above, a larger food storage space may be provided between a bottom of the upper cup body and a bottom of the lower cup body. When the food storage space needs to be adjusted, a manufacturer only needs to replace the liners with different heights to adjust the food storage space.

[0008] As a first solution of the liner, in the nested paper cup above, the liner is made of a paper material and comprises the bottom and an annular side wall formed by bending along a crease of the bottom, and the annular side wall abuts against an inner peripheral side wall of the cup body. An angle of the annular side wall after bending is larger than an angle between a side wall of the cup body and the cup bottom, and after putting the liner into the cup body, the annular side wall has a small amount of elasticity, so that the annular side wall abuts against the inner peripheral side wall of the cup body.

[0009] In the nested paper cup above, the liner is formed by pressing a circular paperboard, after pressing, the annular side wall of the liner forms a plurality of folds protruding inwardly in a vertical direction, and the folds are arranged in a circumferential direction. The folds increase a contact area between the top of the liner and the foot, and play a role of a reinforcing rib.

[0010] As a second solution of the liner, in the nested paper cup above, the liner includes the bottom and a plurality of supporting sheets formed by bending along a crease of the bottom, the supporting sheets abut against an inner peripheral side wall of the cup body, and at least one fold protruding inwardly in a vertical direction is arranged on each supporting sheet.

[0011] In the nested paper cup above, an interval or an overlapped state is formed between the supporting sheets. When the supporting sheets are in the overlapped state, a supporting effect can be increased.

[0012] In the nested paper cup above, the bottom of the liner is circular or strip-shaped, and a bottom surface of the liner is adhered to an inner side of the cup body. Not only a strength of the bottom can be increased to prevent the bottom from being deformed or damaged by food, but also a sealing property can be improved to prevent liquid leakage.

[0013] As a first solution of the liner, in the nested paper cup above, the cup body has a single-layer structure, and an outer peripheral wall of the upper cup body is capable of abutting against an inner side wall of the lower cup body. The single-layer cup body has a certain thickness, and after the upper cup body and the lower cup body are nested and overlapped up and down, the upper cup body and the lower cup body are capable of being clamped and are not easy to be separated.

[0014] As a second solution of the liner, in the nested paper cup above, the cup body has a double-layer paper wall structure, which includes an outer layer paper wall and an inner layer paper wall, the outer layer paper wall is wrapped on an outer side of the inner layer paper wall, and after the upper cup body and the lower cup body are nested and overlapped up and down, the outer layer paper wall of the upper cup body (1a) is capable of abutting against the inner layer paper wall of the lower cup body (1b). The first solution of the cup body is further improved, and a thickness of the cup body is increased through the outer layer paper wall to increase a clamping tightness between two cup bodies.

[0015] In the nested paper cup above, a plurality of outwardly convex portions are arranged on an outer peripheral wall of the cup body, and the convex portions of the upper cup body abut against an inner side wall of the lower cup body. A clamping degree between two cup bodies is further increased through the outwardly convex portions.

[0016] In the nested paper cup above, the convex portions have a hollow structure, and the convex portions are strip-shaped, dot-shaped or annular. The hollow structure not only can implement an anti-scalding function, but also has certain elasticity, so that different height differences can be applied in front of and behind the two cup bodies.

[0017] Compared with the prior art, the nested paper cup has the following advantages.

1. According to the nested paper cup, the liner and the convex portions are arranged on the paper cup body, so that after identical cup bodies are nested and overlapped, a larger storage space is provided between the bottom of the upper cup body and the bottom of the lower cup body, a normal overlapped state can be maintained, and the cup bodies are not easy to fall apart and be separated. The nested paper cup can also be used normally after being put in an automatic cup extractor.

2. The manufacturer may replace different liners as required to adjust the storage space, so that the nested paper cup has a wide application range. Moreover, the liner and the cup body are both made of a degradable paper material, which is sanitary and environment-friendly.

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 

FIG. 1 is a schematic diagram of a front-view structure of a nested paper cup.

FIG. 2 is a schematic diagram of a stereoscopic structure of the nested paper cup.

FIG. 3 is a schematic diagram of a cross-section structure of the nested paper cup in FIG. 1.

FIG. 4 is a schematic diagram of a stereoscopic structure of a liner.

FIG. 5 is a schematic diagram of a structure of a plurality of nested cup bodies.

FIG. 6 is a schematic diagram of a structure of a cup body having a double-layer wall structure.

FIG. 7 is a schematic diagram of a front-view structure of a nested paper cup in Embodiment 2.

FIG. 8 is a schematic diagram of a stereoscopic structure of the nested paper cup in Embodiment 2.

FIG. 9 is a schematic diagram of a cross-section structure of the nested paper cup in FIG. 1 in Embodiment 2.

FIG. 10 is a schematic diagram of a stereoscopic structure of a liner in Embodiment 2.

FIG. 11 is a schematic diagram of a structure of a plurality of nested cup bodies in Embodiment 2.

FIG. 12 is a schematic diagram of a structure of another alternative solution of the liner.

FIG. 13 is a schematic diagram of a structure of another alternative solution of the liner.

FIG. 14 is a schematic diagram of a partial structure of another alternative solution of the liner.

FIG. 15 is a schematic diagram of a structure of another alternative solution of the liner.

[0019] In the drawings, 1 refers to cup body; 2 refers to foot; 3 refers to convex portion; 4 refers to liner; 41 refers to bottom; 42 refers to annular side wall; 43 refers to fold; 44 refers to supporting sheet; 5 refers to space; and 6 refers to food.

DETAILED DESCRIPTION

[0020] The present invention is further described hereinafter with reference to the accompanying drawings by the embodiments.

Embodiment 1

[0021] As shown in FIG. 1 and FIG. 3, a nested paper cup includes a cup body 1 made of a paper material, and a bottom of the cup body 1 is provided with an annular foot 2. A plurality of outwardly convex portions 3 are arranged on an outer peripheral wall of the cup body 1, the convex portions (3) have a hollow strip-shaped structure. As shown in FIG. 6, alternatively, the cup body 1 has a double-layer paper wall structure, which includes an outer layer paper wall and an inner layer paper wall. The outer layer paper wall is wrapped on an outer side of the inner layer paper wall, the outer layer paper wall of the cup body 1 is provided with strip-shaped outwardly convex portions 3 by pressing, and the convex portions 3 have a hollow strip-shaped structure. After the upper cup body 1a and the lower cup body 1b are nested and overlapped up and down, the convex portions 3 of the upper cup body 1a abut against the inner side wall of the lower cup body 1b. The hollow structure of the convex portions 3 not only can implement an anti-scalding function, but also has certain elasticity, so that different height differences can be applied in front of and behind the two cup bodies 1.

[0022] As an alternative solution, the convex portions 3 may have a dotted or annular structure.

[0023] With reference to FIG. 3, as shown in FIG. 2, a bottom of an inner side of the cup body 1 is provided with an annular liner 4, a bottom of the liner 4 is supported on the bottom of the cup body 1, and a bottom surface of the liner 4 is adhered to the inner side of the cup body 1 to form a double-layer bottom structure. A top of the liner 4 protrudes from an inner side wall of the cup body 1. The liner 4 is made of a paper material and includes the bottom 41 and an annular side wall 42 formed by bending along a crease of the bottom 41, and the annular side wall 42 abuts against an inner peripheral side wall of the cup body 1.

[0024] With reference to FIG. 2 and FIG. 3, as shown in FIG. 4, the liner 4 is formed by pressing a circular paperboard, after pressing, the annular side wall 42 of the liner 4 forms a plurality of folds 43 protruding inwardly in a vertical direction, and the folds 43 are arranged in a circumferential direction. An angle of the annular side wall 42 after bending is larger than an angle between a side wall of the cup body 1 and the cup bottom, and after putting the liner 4 into the cup body 1, the annular side wall 42 has a small amount of elasticity, so that the annular side wall 42 abuts against the inner peripheral side wall of the cup body 1.

[0025] As shown in FIG. 5, after a plurality of identical cup bodies 1 are nested up and down, the internally nested cup body 1 is an upper cup body 1a, the cup body 1 located outside the upper cup body 1a is a lower cup body 1b, the foot 2 of the upper cup body 1a abuts against the top of the liner 4 of the lower cup body 1, and convex portions 3 of the upper cup body 1a abut against an inner side wall of the lower cup body 1b. Through a matching structure of the annular foot 2 and the liner 4 above, a larger space 5 for storing food 6 may be provided between a bottom of the upper cup body 1a and a bottom of the lower cup body 1b, and the two cup bodies 1 are kept clamped tightly through the convex portions 3 and will not fall apart. When the space 5 for storing food 6 needs to be adjusted, a manufacturer only needs to replace the liners 4 with different heights to adjust the space 5 for storing food 6.

Embodiment 2

[0026] As shown in FIG. 7 and FIG. 9, a nested paper cup includes a cup body 1 made of a paper material, and a bottom of the cup body 1 is provided with an annular foot 2. As an alternative solution, the convex portions 3 may have a dotted or annular structure.

[0027] With reference to FIG. 9, as shown in FIG. 8, a bottom of an inner side of the cup body 1 is provided with an annular liner 4, a bottom of the liner 4 is supported on the bottom of the cup body 1, and a bottom surface of the liner 4 is adhered to the inner side of the cup body 1 to form a double-layer bottom structure. A top of the liner 4 protrudes from an inner side wall of the cup body 1. The liner 4 is made of a paper material and includes the bottom 41 and an annular side wall 42 formed by bending along a crease of the bottom 41, and the annular side wall 42 abuts against an inner peripheral side wall of the cup body 1.

[0028] With reference to FIG. 8 and FIG. 9, as shown in FIG. 10, the liner 4 is formed by pressing a circular paperboard, after pressing, the annular side wall 42 of the liner 4 forms a plurality of folds 43 protruding inwardly in a vertical direction, and the folds 43 are arranged in a circumferential direction. An angle of the annular side wall 42 after bending is larger than an angle between a side wall of the cup body 1 and the cup bottom, and after putting the liner 4 into the cup body 1, the annular side wall 42 has a small amount of elasticity, so that the annular side wall 42 abuts against the inner peripheral side wall of the cup body 1.

[0029] With reference to FIG. 10, as shown in FIG. 12, the liner 4 adopts another alternative solution, the liner 4 is formed by pressing a strip-shaped paperboard with two curved ends, and supporting sheets 44 are oppositely arranged. After pressing, the supporting sheets 44 of the liner 4 form two folds 43 protruding inwardly in a vertical direction.

[0030] With reference to FIG. 4, as shown in FIG. 13, the liner 4 adopts another alternative solution, the bottom 41 of the liner 4 is circular, the bottom 41 is connected with two supporting sheets 44, and an interval is formed between the two supporting sheets 44.

[0031] With reference to FIG. 4, as shown in FIG. 14, the liner 4 adopts another alternative solution, the bottom 41 of the liner 4 is circular, an overlapped state is formed between the supporting sheets 44.

[0032] With reference to FIG. 15, as shown in FIG. 10, the liner 4 adopts another alternative solution, the bottom 41 of the liner 4 is circular, the bottom 41 is connected with three supporting sheets 44, and an interval is formed among the supporting sheets 44.

[0033] As shown in FIG. 11, after a plurality of identical cup bodies 1 are nested up and down, the internally nested cup body 1 is an upper cup body 1a, the cup body 1 located outside the upper cup body 1a is a lower cup body 1b, the foot 2 of the upper cup body 1a abuts against the top of the liner 4 of the lower cup body 1, The single-layer cup body 1 has a certain thickness, and after the upper cup body and the lower cup body are nested and overlapped up and down, the upper cup body and the lower cup body are capable of being clamped and are not easy to be separated. Through a matching structure of the annular foot 2 and the liner 4 above, a larger space 5 for storing food 6 may be provided between a bottom of the upper cup body 1a and a bottom of the lower cup body 1b, and the two cup bodies 1 are kept clamped tightly through the convex portions 3 and will not fall apart. When the space 5 for storing food 6 needs to be adjusted, a manufacturer only needs to replace the liners 4 with different heights to adjust the space 5 for storing food 6.

[0034] The specific embodiments are only used to explain the present invention, and are not intended to limit the present invention. After reading the specification, those skilled in the art may make modifications on the embodiments without creative contribution as required, but the modifications are protected by the patent law as long as the modifications fall within the scope of the claims of the present invention.

Claims

1. A nested paper cup, comprising a cup body (1) made of a paper material, a bottom of the cup body (1) being provided with an annular foot (2), characterized in that a liner (4) is arranged on an inner side of the cup bottom of the cup body (1), a bottom (41) of the liner (4) abuts against the cup bottom of the cup body (1), a side wall of the liner (4) abuts against an inner side wall of the cup body (1) and a top of the side wall of the liner (4) protrudes from an inner side wall of the cup body (1), when two identical cup bodies (1) above are nested along up and down direction, the internally nested cup body (1) is an upper cup body (1a), the cup body (1) located outside the upper cup body (1a) is a lower cup body (1b), and a annular foot (2) of the upper cup body (1a) abuts against the top of the liner (4) in the lower cup body (1b) and a space is formed by the annular foot (2) and the side wall of the liner (4).

2. The nested paper cup of claim 1, wherein the liner (4) is made of a circular paper material and comprises the bottom (41) and an annular side wall (42) formed by bending along a crease of the bottom (41), and the annular side wall (42) abuts against an inner peripheral side wall of the cup body (1).

3. The nested paper cup of claim 2, wherein the liner (4) is formed by pressing a circular paperboard, after pressing, the annular side wall (42) of the liner (4) forms a plurality of folds (43) protruding inwardly in a vertical direction, and the folds (43) are arranged in a circumferential direction.

4. The nested paper cup of claim 1, wherein the liner (4) comprises the bottom (41) and a plurality of supporting sheets (44) formed by bending along a crease of the bottom (41), the supporting sheets (44) abut against an inner peripheral side wall of the cup body (1), and at least one fold (42) protruding inwardly in a vertical direction is arranged on each supporting sheet (44).

5. The nested paper cup of claim 4, wherein an interval or an overlapped state is formed between the supporting sheets (44) .

6. The nested paper cup of claim 1, 2, 3, 4 or 5, wherein the bottom (41) of the liner (4) is circular or strip-shaped, and a bottom surface of the liner (4) is adhered to an inner side of the cup body (1).

7. The nested paper cup of claim 6, wherein the cup body (1) has a single-layer structure, and an outer peripheral wall of the upper cup body (1a) is capable of abutting against an inner side wall of the lower cup body (1b).

8. The nested paper cup of claim 6, wherein the cup body (1) has a double-layer paper wall structure, which comprises an outer layer paper wall and an inner layer paper wall, the outer layer paper wall is wrapped on an outer side of the inner layer paper wall, and after the upper cup body (1a) and the lower cup body (1b) are nested and overlapped up and down, the outer layer paper wall of the upper cup body (1a) is capable of abutting against the inner layer paper wall of the lower cup body (1b).

9. The nested paper cup of claim 7, wherein a plurality of outwardly convex portions (3) are arranged on an outer peripheral wall of the cup body (1), and the convex portions (3) of the upper cup body (1a) abut against an inner side wall of the lower cup body (1b).

10. The nested paper cup of claim 8, wherein a plurality of outwardly convex portions (3) are arranged on an outer peripheral wall of the cup body (1), and the convex portions (3) of the upper cup body (1a) abut against an inner side wall of the lower cup body (1b).

11. The nested paper cup of claim 9, wherein the convex portions (3) have a hollow structure, and the convex portions (3) are strip-shaped, dot-shaped or annular.

Drawing