Container assembly and its lid and container

Abstract

A container assembly and a lid and a container thereof, the container assembly comprising a container and a lid. The container has a mouth portion, the lid is detachably connected to the mouth portion of the container and comprises a cover portion, a connecting portion connected to a periphery of the cover portion, and a stop portion. The connecting portion comprises an outer side wall surrounding the mouth portion and capable of contacting the mouth portion. The stop portion is formed on an inner surface of the outer side wall and has a plurality of stop ribs arranged in an array. A highest point of the stop portion along an axial direction and a lowest point of the mouth portion along the axial direction define a contact area in frictional contact with the mouth portion, a height of the contact area along the axial direction being more than 30% of a height of the stop portion along the axial direction.

Description

Technical Field

[0001] This invention relates to a lid and container, and more particularly to a container assembly suitable for containing liquids, and the lid and container thereof. Background Technology

[0002] See Figure 1 This describes a known paper-plastic cover 1 disclosed in Taiwan Patent No. I610007B, comprising a central portion 11, an edge portion 12 connected to the periphery of the central portion 11, and a fastening portion 13. The edge portion 12 has two side walls 121 and a top edge portion 122 connected to the side walls 121. The fastening portion 13 is formed on the inner surface of the outermost side wall 121.

[0003] When the paper-plastic lid 1 is attached to an outer container 2, the fastening part 13 surrounds the outer container 2 and abuts against the lower edge of a protrusion 21 attached to the outer container 2. In this way, the paper-plastic lid 1 can be securely attached to the outer container 2.

[0004] The fastening part 13 and the protrusion 21 abut against each other in a slightly upper and lower position. Therefore, although the fastening part 13 and the protrusion 21 can block each other and prevent the paper-plastic cover 1 or the outer container 2 from falling off, the paper-plastic cover 1 and the outer container 2 can easily rotate relative to each other when the lateral friction is weak. Furthermore, when a gap is formed between the top edge 122, the innermost sidewall 121, and the protrusion 21, the sealing effect of the paper-plastic cover 1 and the outer container 2 is poor. Summary of the Invention

[0005] The purpose of this invention is to provide a container assembly and its lid and container that can improve bonding strength and restrict rotation.

[0006] The present invention provides a lid for a container assembly comprising a container having an opening about an axis, the lid being detachably connected to the opening of the container and defining an accommodating space therebetween. The lid includes a covering portion, a connecting portion, and a stop portion.

[0007] The connecting portion is connected to the periphery of the covering portion and includes an outer wall surrounding the opening portion. The outer wall abuts against the opening portion and has an end edge.

[0008] The stop portion surrounds the axis and is formed on the outer side wall. The stop portion has a plurality of stop ribs arranged in an array. The stop ribs define a grid-like gap, and the highest point of the stop portion along the axis and the lowest point of the opening portion along the axis define a contact area that frictionally contacts the opening portion, the height of the contact area along the axis being more than 30% of the height of the stop portion along the axis.

[0009] The lid of the container assembly of the present invention has a stop portion extending along the axial direction for a length between 1 mm and 3 mm.

[0010] The lid of the container assembly of the present invention has a thickness of 0.05 mm to 0.8 mm for each of the said stop ribs extending in a radial-width direction perpendicular to the axis.

[0011] In the lid of the container assembly of the present invention, the ratio of the thickness of each of the stop ribs along the radial width direction perpendicular to the axis to the thickness of the outer wall along the radial width direction is between 1:5 and 1:2.

[0012] The lid of the container assembly of the present invention, wherein the covering part, the connecting part and the stopping part are integrally formed from pulp.

[0013] The lid of the container assembly of the present invention further includes an inner sidewall surrounding the axis and spaced apart from the outer sidewall, and an abutment wall connecting the inner sidewall and the outer sidewall and forming a positional difference with the cover portion along the axis direction. The inner sidewall and the outer sidewall abut against the opening portion and are clamped to both sides of the opening portion with the outer sidewall. The abutment wall, the inner sidewall, and the outer sidewall define a mating space with an opening opposite to the abutment wall for receiving the opening portion.

[0014] In the container assembly of the present invention, the width of the mating space along the radial width direction perpendicular to the axis is greater than the width of the abutting wall along the radial width direction.

[0015] A container assembly comprising a plurality of lids as described above and a plurality of containers.

[0016] Each of the lids is detachably attached to the opening of its respective container and defines a receiving space with respect to its respective container. The lids are stackable along the axial direction, and when the lids are stacked, the abutment wall of one of the lids abuts against the stop portion of the adjacent lid, and the covering portion, abutment wall, and inner wall of each lid are spaced apart from the covering portion, abutment wall, and inner wall of the adjacent lid, respectively.

[0017] A container assembly comprising a lid as described above and the container.

[0018] The container assembly of the present invention further includes a bottom and a surrounding portion extending from the periphery of the bottom along the axial direction and connected to the opening portion. The opening portion has an inner ring wall connected to one end of the surrounding portion opposite to the bottom, an outer ring wall surrounding the axial direction and spaced apart from the inner ring wall, and a top wall connecting the inner ring wall and the outer ring wall and forming a positional difference with the bottom along the axial direction. The top wall, the inner ring wall, and the outer ring wall define an annular space with an opening opposite to the top wall. The outer side wall of the cover surrounds the outer ring wall of the container and abuts against the outer ring wall with the stop portion, such that the outer ring wall partially sinks into the stop ribs and rubs against the outer side wall and the stop ribs. The connecting portion further includes an inner side wall surrounding the axial direction and spaced apart from the outer side wall, and an abutting wall connecting the inner side wall and the outer side wall and forming a positional difference with the cover portion along the axial direction. The inner side wall of the cover abuts against the inner ring wall, and the abutting wall abuts against the top wall.

[0019] A container that fits with the aforementioned lid includes a bottom, a surrounding portion extending from the periphery of the bottom along the axial direction, and a vent.

[0020] The opening includes an inner annular wall surrounding the axis and connected to one end of the surrounding portion opposite to the bottom, an outer annular wall surrounding the axis and spaced apart from the inner annular wall, and a top wall connecting the inner annular wall and the outer annular wall and forming a positional difference with the bottom along the axial direction. The top wall, the inner annular wall, and the outer annular wall contact the connecting portion of the cover body and define an annular space with an opening opposite to the top wall. The outer annular wall abuts against the outer side wall of the cover body and partially sinks into the stop ribs, thus making frictional contact with the outer side wall and the stop ribs.

[0021] The container of the present invention has its bottom, its surrounding portion and its opening portion integrally formed from pulp.

[0022] The container of the present invention has a surrounding portion having a small diameter section connected to the bottom, a large diameter section connected to the opening, and an abutting section connecting the large diameter section and the small diameter section, wherein the width of the small diameter section along the diameter-width direction perpendicular to the axis is smaller than the width of the large diameter section along the diameter-width direction.

[0023] The beneficial effect of this invention is that by using the stop portion surrounding the opening, the frictional resistance when the lid and the container rotate relative to each other is increased. This achieves the purpose of restricting the relative rotation of the lid and the container, thereby further improving the bonding force and stability between the lid and the container. Attached Figure Description

[0024] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, wherein:

[0025] Figure 1 This is a cross-sectional view illustrating a known paper-plastic lid disclosed in Taiwan Patent No. I610007B.

[0026] Figure 2 This is an exploded perspective view illustrating an embodiment of the container assembly of the present invention;

[0027] Figure 3 This is a cross-sectional view of the embodiment described;

[0028] Figure 4 This is a perspective view of the cover in the embodiment described;

[0029] Figure 5 This is a cross-sectional view of the cover body described in the embodiment;

[0030] Figure 6 yes Figure 4 An incomplete, magnified 3D image of a local area;

[0031] Figure 7 yes Figure 5 An incomplete, enlarged sectional view;

[0032] Figure 8 This is a partially enlarged cross-sectional view of the embodiment described;

[0033] Figure 9 This is a cross-sectional view illustrating the stacking of multiple covers in several of the embodiments described.

[0034] Figure 10 This is a cross-sectional view illustrating multiple containers stacked on top of each other in several of the embodiments described;

[0035] Figure 11 It is similar to Figure 3 The cross-sectional view is shown, but the shape of the container differs from that of the lid. Detailed Implementation

[0036] See Figure 2 and Figure 3 One embodiment of the container assembly of the present invention includes a container 3 and a cover 4.

[0037] In this embodiment, the container 3 is a cup. The container 3 includes a bottom 31, a surrounding portion 32 extending from the periphery of the bottom 31 along an axis X, and a spout 33. The bottom 31, the surrounding portion 32, and the spout 33 are integrally formed from pulp.

[0038] The surrounding portion 32 has a small-diameter section 321 connected to the bottom 31, a large-diameter section 322 opposite to the small-diameter section 321, and an abutting section 323 connecting the small-diameter section 321 and the large-diameter section 322. The width D1 of the small-diameter section 321 along a radial width direction Y perpendicular to the axis X is smaller than the width D2 of the large-diameter section 322 along the radial width direction Y.

[0039] The opening 33 includes an inner annular wall 331 connected to the end of the large-diameter section 322 opposite to the bottom 31, an outer annular wall 332 surrounding the axis X and spaced apart from the inner annular wall 331, and a top wall 333 connecting the inner annular wall 331 and the outer annular wall 332 and forming a positional difference with the bottom 31 along the axis X. The top wall 333, the inner annular wall 331, and the outer annular wall 332 define an annular space 330 with an opening opposite to the top wall 333. The outer annular wall 332 has a lowest point 334 along the axis X.

[0040] See Figure 3 , Figure 4 and Figure 5 The cover 4 is detachably connected to the opening 33 of the container 3 and defines a closed receiving space 40 with the container 3. The receiving space 40 is suitable for containing liquid. The cover 4 includes a centrally located covering portion 41, a connecting portion 42 connected to the periphery of the covering portion 41, and a stop portion 43. The covering portion 41, the connecting portion 42, and the stop portion 43 are integrally formed from pulp.

[0041] The connecting portion 42 includes an inner wall 421 surrounding the axis X and connected to the covering portion 41, an outer wall 422 surrounding the axis X and spaced from the opening portion 33, and an abutment wall 423 connecting the inner wall 421 and the outer wall 422 and forming a positional difference with the covering portion 41 along the axis X. The outer wall 422 has an end edge 424 opposite to the abutment wall 423. The abutment wall 423, the inner wall 421, and the outer wall 422 define a mating space 420 with an opening opposite to the abutment wall 423. The width D3 of the abutment wall 423 along the radial direction Y is smaller than the width D4 of the mating space 420 along the radial direction Y.

[0042] See also Figure 6The stop portion 43 surrounds the axis X and is formed on the inner surface of the outer side wall 422, and has a plurality of stop ribs 430 arranged in an array, the stop ribs 430 defining a grid-like gap 44. The stop portion 43 has a highest point 431 along the axis X (see...). Figure 8 ).

[0043] See Figure 3 , Figure 7 and Figure 8 The length of the stop portion 43 extending along the X-axis is between 1 mm and 3 mm. The ratio of the thickness T1 of each stop rib 430 along the radial width direction Y to the thickness T2 of the outer wall 422 along the radial width direction Y is between 1:5 and 1:2, preferably between 1:4 and 1:3. In this embodiment, the cross-section of each stop rib 430 is generally cuboid, and the thickness T1 extending along the radial width direction Y is between 0.05 mm and 0.8 mm.

[0044] When the cover 4 moves relative to the container 3 along the X-axis and is fitted onto the opening 33, the opening 33 of the container 3 passes through the mating space 420 and abuts against the abutting wall 423 of the cover 4. At this time, the mating space 420 of the cover 4 will receive the opening 33 of the container 3. Furthermore, the inner wall 421 and the outer wall 422 of the cover 4 will press against and clamp the inner ring wall 331 and the outer ring wall 332 of the container 3.

[0045] In this way, the inner sidewall 421 of the cover 4 and the inner ring wall 331 of the container 3, the outer sidewall 422 of the cover 4 and the outer ring wall 332 of the container 3, and the abutting wall 423 of the cover 4 and the top wall 333 of the container 3 will form three tight rings from the inside to the outside due to mutual abutment.

[0046] More importantly, since the container 3 and the lid 4 are both made of pulp, they are elastic and plastic. Therefore, during the process of the outer wall 422 of the lid 4 pressing against the outer ring wall 332 of the container 3, in addition to the outer ring wall 332 deforming through the annular space 330 to get closer to the outer wall 422, the stop rib 430 located between the outer wall 422 and the outer ring wall 332 will also press against the outer ring wall 332 of the container 3.

[0047] At this time, the stop portion 43 defines a contact area 43a that frictionally contacts the opening portion 33, with the highest point 431 and the lowest point 334 of the opening portion 33. A portion of the outer ring wall 332's thickness will embed between the stop ribs 430 and rub against the outer side wall 422 and the stop ribs 430. The height H1 of the contact area 43a along the X-axis is more than 30%, 50%, or 60% of the height H2 of the stop portion 43 along the X-axis. The size of the contact area 43a is proportional to the frictional force between each stop rib 430 and the opening portion 33.

[0048] This not only significantly increases the frictional contact area between the cover 4 and the opening 33, thus improving the stability of the connection between the cover 4 and the opening 33, but also forms a protective layer with different blocking directions through the sealing ring, preventing liquid in the containing space 40 from leaking outward. More importantly, since the stop ribs 430 are arranged in an array to form a grid-like gap 44, when a portion of the outer ring wall 332 is embedded in the gap 44 and contacts the stop ribs 430, the stop ribs 430 will engage with the outer ring wall 332 of the container 3, preventing the container 3 from rotating relative to the cover 4.

[0049] Since the container 3 and the lid 4 are made of pulp, the outer side wall 422, the stop rib 430, and the outer ring wall 332 are deformable. Therefore, even when an external force is sufficient to deform the stop rib 430 or the outer ring wall 332, the container 3 and the lid 4 can still rotate slightly.

[0050] See Figure 9 Furthermore, before the lids 4 in the various embodiments are connected to the container 3, the lids 4 can be stacked along the X-axis. When the lids 4 are stacked, the abutting wall 423 of one lid 4 abuts against the stop rib 430 of the adjacent lid 4. The covering portion 41, abutting wall 423, and inner wall 421 of each lid 4 are spaced apart from the covering portion 41, abutting wall 423, and inner wall 421 of the adjacent lid 4, respectively. This not only reduces the space occupied, improving space efficiency, but also reduces the contact area of ​​adjacent lids 4, preventing them from squeezing each other, and making it easier to access the outermost lid 4.

[0051] See Figure 10Similarly, in the various embodiments, before the container 3 is connected to the cover 4, the container 3 can also be stacked along the X-axis. When the containers 3 are stacked, the opening 33 of one container 3 abuts against the abutment section 323 of the adjacent container 3, and the bottom 31 and surrounding portion 32 of each container 3 are spaced apart from the bottom 31 and surrounding portion 32 of the adjacent container 3, respectively. This reduces the space occupied, improving space efficiency, and also reduces the contact area between adjacent containers 3, preventing them from squeezing each other, and making it easier to access the outermost container 3.

[0052] It should be noted that the container 3 is not limited to a cup body; in other variations of this embodiment, it can also be as follows: Figure 11 The image shows a bowl or other container of other shapes. Further details are omitted as those skilled in the art can deduce them from the above description.

[0053] Based on the above explanation, the advantages of the aforementioned embodiments can be summarized as follows:

[0054] 1. The present invention enables the inner sidewall 421, outer sidewall 422 and abutment wall 423 of the cover body 4 to abut and contact the inner ring wall 331, outer ring wall 332 and top wall 333 of the container 3 respectively, thereby forming three sealing rings with different blocking directions from the inside to the outside, which can effectively prevent the liquid in the containing space 40 from leaking outward and improve the overall sealing performance.

[0055] 2. The stop ribs 430 surround and rub against the outer ring wall 332 of the opening 33. In addition to greatly increasing the friction contact area by pressing against the outer side wall 422 of the outer ring wall 332, thereby increasing the lateral friction force and improving the bonding force and stability of the cover 4 and the container 3, more importantly, when a portion of the outer ring wall 332 is embedded in the mesh between the stop ribs 430, the stop ribs 430 will engage with the outer ring wall 332 of the container 3, thus preventing the container 3 and the cover 4 from rotating relative to each other.

[0056] 3. Furthermore, through the design of the abutment wall 423 and the stop rib 430 of the cover 4, when multiple covers 4 are stacked, the covering part 41, abutment wall 423, and inner side wall 421 of each cover 4 are spaced apart from the covering part 41, abutment wall 423, and inner side wall 421 of the adjacent cover 4, respectively. This reduces the contact area of ​​adjacent covers 4, avoids adjacent covers 4 from squeezing each other, and makes it easier to access the outermost cover 4.

[0057] 4. Similarly, through the design of the abutting section 323 of the surrounding part 32 of the container 3, when multiple containers 3 are stacked, the bottom 31 and surrounding part 32 of each container 3 are spaced apart from the bottom 31 and surrounding part 32 of the adjacent container 3, respectively. This reduces the contact area between adjacent containers 3, avoids the adjacent containers 3 from squeezing each other, and makes it easier to access the outermost container 3.

[0058] The above description is merely an embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the present invention shall still fall within the scope of the present invention.

Claims

1. A lid for a container assembly, the container assembly comprising a container, the container including a bottom, a surrounding portion extending from the periphery of the bottom along an axis, and an opening portion surrounding the axis, the opening portion including an inner annular wall surrounding the axis and connected to an end of the surrounding portion opposite to the bottom, an outer annular wall surrounding the axis and spaced apart from the inner annular wall, and a top wall connecting the inner annular wall and the outer annular wall and forming a positional difference with the bottom along the axis, the top wall, the inner annular wall, and the outer annular wall defining an annular space with an opening opposite to the top wall, the bottom, the surrounding portion, and the opening portion being integrally formed from pulp, the lid being detachably connected to the opening portion of the container and defining a receiving space with the container, the lid comprising: Covering part; A connecting portion is connected to the periphery of the covering portion and includes an outer wall surrounding the opening portion, the outer wall abutting against the opening portion and having an end edge, the top wall, the inner ring wall and the outer ring wall contacting the connecting portion of the cover body; Its features are, The cover also includes: A stop portion, surrounding the axis and formed on the outer side wall, has a plurality of stop ribs arranged in an array, the stop ribs defining a grid-like gap, the outer ring wall abutting against the outer side wall of the cover and partially embedded between the stop ribs, and rubbing against the outer side wall and the stop ribs, the highest point of the stop portion along the axis direction and the lowest point of the opening portion along the axis direction define a contact area for rubbing against the opening portion, the height of the contact area along the axis direction is more than 30% of the height of the stop portion along the axis direction and less than the height of the stop portion along the axis direction.

2. The lid of the container assembly according to claim 1, characterized in that: The length of the stop portion extending along the axial direction is between 1 mm and 3 mm.

3. The lid of the container assembly according to claim 1, characterized in that: The thickness of each of the said stop ribs extending along the radial width direction perpendicular to the axis is between 0.05 mm and 0.8 mm.

4. The lid of the container assembly according to claim 1, characterized in that: The ratio of the thickness of each of the stop ribs along the radial width direction perpendicular to the axis to the thickness of the outer wall along the radial width direction is between 1:5 and 1:

2.

5. The lid of the container assembly according to claim 1, characterized in that: The covering, the connecting part, and the blocking part are integrally formed from pulp.

6. The lid of the container assembly according to claim 1, characterized in that: The connecting portion further includes an inner sidewall that surrounds the axis and is spaced apart from the outer sidewall, and an abutting wall that connects the inner sidewall and the outer sidewall and forms a positional difference with the covering portion along the axis direction. The inner sidewall and the outer sidewall abut against the opening portion and are clamped to both sides of the opening portion with the outer sidewall. The abutting wall, the inner sidewall, and the outer sidewall define a mating space with an opening opposite to the abutting wall for receiving the opening portion.

7. The lid of the container assembly according to claim 6, characterized in that: The width of the mating space along the radial direction perpendicular to the axis is greater than the width of the abutting wall along the radial direction.

8. A container assembly, Its features are, The container assembly includes a plurality of lids as described in claim 6 and a plurality of said containers; Each of the lids is detachably connected to the opening of its respective container and defines a receiving space with its respective container. The lids are stackable along the axial direction, and when the lids are stacked, the abutting wall of one of the lids abuts against the stop portion of the adjacent lid, and the covering portion, abutting wall and inner sidewall of each of the lids are spaced apart from the covering portion, abutting wall and inner sidewall of the adjacent lid, respectively.

9. The container assembly according to claim 8, characterized in that: The surrounding portion has a small diameter section connected to the bottom, a large diameter section connected to the opening, and an abutting section connecting the large diameter section and the small diameter section. The width of the small diameter section along the diameter-width direction perpendicular to the axis is smaller than the width of the large diameter section along the diameter-width direction.

10. A container assembly, characterized in that, The container assembly includes a lid as described in any one of claims 1 to 7 and the container.

11. The container assembly according to claim 10, characterized in that: The outer wall of the cover surrounds the outer ring wall of the container and abuts against the outer ring wall with the stop portion. The connecting portion also includes an inner wall that surrounds the axis and is spaced apart from the outer wall, and an abutting wall that connects the inner wall and the outer wall and forms a positional difference with the cover portion along the axis direction. The inner wall of the cover abuts against the inner ring wall, and the abutting wall abuts against the top wall.

12. The container assembly according to claim 10, characterized in that: The surrounding portion has a small diameter section connected to the bottom, a large diameter section connected to the opening, and an abutting section connecting the large diameter section and the small diameter section. The width of the small diameter section along the diameter-width direction perpendicular to the axis is smaller than the width of the large diameter section along the diameter-width direction.

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