EP3686126B1

EP3686126B1 - Combined-type cup

Info

Publication number: EP3686126B1
Application number: EP19154676.1A
Authority: EP
Inventors: Kin Wa TONG
Original assignee: Joinease Hong Kong Ltd
Current assignee: Joinease Hong Kong Ltd
Priority date: 2019-01-25
Filing date: 2019-01-31
Publication date: 2024-03-06
Anticipated expiration: 2039-01-31
Also published as: EP3686126A1; CN109938551A; EP3686126C0

Description

BACKGROUND OF THE INVENTION

1. Technical Field

The invention relates to the technical field of articles for daily use, in particular to a combined-type cup.

2. Description of Related Art

Cups are commonly used by people for drinking and typically comprise a cup bottom and a cup wall, and various cups can be formed by additionally arranging a handle or a cup lid on the cup wall. Nowadays, the cup wall is generally sleeved with an insulating paperboard to protect hands against cold or scalding when cold drinks or hot drinks are contained in the cups, so that a hand protection effect is fulfilled. However, due to the fact that the paperboards are disposable and not environmentally friendly, and severe resource waste is caused; and in addition, due to the fact that all the cups are similar, these cups cannot be easily distinguished from one another in actual use, which may result in embarrassment. For this reason, a novel cup needs to be developed to solve these problems.
Some documents of the state of the art disclose different types of container units comprising an inner container and an outer container.
Document DE 100 35 059 A1 discloses a container unit comprising a first and a second container, wherein the second container is to be inserted inside the first one in a way to define a distance therebetween. The upper edge of both containers presents fastening elements having shapes that allow them to connect and not fall out.
Document US 2008/264937 A1 relates to a double-walled cup wherein the inner wall is formed by an inner cup and the outer wall is formed by an outer cup, the inner cup being detachably attached in the outer cup. The outer cup has an outer edge flange protruding outward which is formed as a beaded rolled rim and the inner cup has an inner edge flange in an inverse U-shape which contacts the outer edge flange from above. The double-walled cup can be closed with a lid / sealing foil placed on the outer edge flange or the inner edge flange.
Document EP 2 647 586 A1 relates to a packaging container having an inner part and an outer part, wherein the inner part forms a cup-shaped container, and the outer part surrounds the inner part at least partially. The outer part is attached to the inner part by a clamping channel, which is formed by rolling the edge of the inner part on the outer part. A lid can also be provided and projections on the edge of the lid can engage under the edge of the cup.
Document WO 2010/146878 A1 discloses a double container comprising a paper outer container and a synthetic resin inner container, according to the preamble of claim 1.
The present invention provides a novel and inventive combined-type cup which comprises an inner cup and a cup sleeve which can be stably connected and can be conveniently disassembled.

BRIEF SUMMARY OF THE INVENTION

The present invention is defined by the claims. Any subject-matter falling outside the scope of the claims is provided for information purposes only.
The objective of the invention is to solve the above-mentioned technical problems by providing a combined-type cup.
A combined-type cup comprises an inner cup. The inner cup comprises a cup bottom and a cup wall. A water storage cavity is defined around the cup bottom by the cup wall. A cup rim extending outwards is integrally formed at the top end of the cup wall and comprises a horizontal section and a vertical section in smooth transition with the horizontal section. A buckle is formed on the outer side of the cup wall by the horizontal section and the vertical section. A cup sleeve surrounding the cup wall is detachably arranged outside the inner cup. A clamping part matched with the buckle is integrally formed at the top end of the cup sleeve.
A bent part is formed at the lower end of the vertical section towards the cup wall and is in interference fit with the clamping part, the horizontal distance from the inner side of the bent part to the inner side of the vertical part is 0.05-0.5mm, and the vertical distance from the inner side of the bent part to the middle of the vertical part is 0.2-1mm.
In one embodiment, a 0.5-2mm gap is reserved between the cup sleeve and the cup wall.
A contact step is arranged on the inner side of the lower portion of the cup sleeve and has an inner side in contact with the cup wall.
A cup lid is detachably arranged on the cup wall, a clamping groove allowing the cup rim to be clamped therein is formed in the outer edge of the lower portion of the cup lid and comprises an inner wall and an outer wall, and a groove allowing the buckle to be wrapped therein is formed between the inner wall and the outer wall.
The inner wall is in interference fit with the inner side of the buckle, and the outer wall is in interference fit with the outer side of the buckle.
In one embodiment, the cross section of the inner cup is round or regular polygonal, and the cross section of the cup sleeve is identical with the cross section of the inner cup in shape.
In conclusion, the combined-type cup comprises the inner cup, wherein the inner cup comprises the cup bottom and the cup wall, the water storage cavity is defined around the cup bottom by the cup wall, the cup rim extending outwards is integrally formed at the top end of the cup wall and comprises the horizontal section and the vertical section in smooth transition with the horizontal section, the buckle is formed on the outer side of the cup wall by the horizontal section and the vertical section, the cup sleeve surrounding the cup wall is detachably arranged outside the inner cup, the clamping part matched with the buckle is integrally formed at the top end of the cup sleeve, the buckle formed by the cup rim and the cup wall of the inner cup is matched with the clamping part at the top end of the cup sleeve so that the cup sleeve and the inner cup can be stably connected and can be conveniently disassembled; when hot drinks or cold drinks are contained in the water storage cavity, users can be protected by the cup sleeve arranged outside the inner cup; and finally, the inner cup and the cup sleeve may have different colors or different patterns to make the whole cup more recognizable and to improve the transformation flexibility of the cup.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 is a cross-sectional view of one embodiment of the invention; and
FIG. 2 is a partial enlarged view of a cup rim in one embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION

The invention is further expounded below with reference to the accompanying drawings and embodiments.
As shown in FIG. 1 and FIG. 2, a combined-type cup comprises an inner cup 1, wherein the inner cup 1 comprises a cup bottom and a cup wall 2, a water storage cavity is defined around the cup bottom by the cup wall 2, a cup rim 3 extending outwards is integrally formed at the top end of the cup wall 2 and comprises a horizontal section 31 and a vertical section 32 in smooth transition with the horizontal section 31, and a buckle 34 is formed on the outer side of the cup wall 2 by the horizontal section 31 and the vertical section 32; a cup sleeve 4 surrounding the cup wall 2 is detachably arranged outside the inner cup 1, and a clamping part 41 matched with the buckle 34 is integrally formed at the top end of the cup sleeve 4; a bent part 33 is arranged at the lower end of the vertical section 32 towards the cup wall 2 and is in interference fit with the clamping part 41, and the buckle 34 formed by the cup rim 3 and the cup wall 2 of the inner cup 1 is matched with the clamping part 41 at the top end of the cup sleeve 4 so that the cup sleeve 4 and the inner cup 1 can be stably connected and can be conveniently disassembled; when hot drinks or cold drinks are contained in the water storage cavity, users can be protected by the cup sleeve 4 arranged outside the inner cup 1; and finally, the inner cup 1 and the cup sleeve 4 may have different colors, different patterns, different degrees of transparency, different surface textures or different degrees of luster to make the whole cup more recognizable.

Embodiment 1

A combined-type cup comprises an inner cup 1 and a cup sleeve 4. A cup rim 3 is integrally formed at the top end of the inner cup 1. A bent part 33 arranged below the cup rim 3 is in interference fit with a clamping part 41 at the top end of the cup sleeve 4, wherein the horizontal interference between the bent part 33 and the clamping part 41 is 0.05-0.5mm, the vertical interference between the bent part 33 and the clamping part 41 is 0.2-1mm. A 0.5-2mm gap is reserved between the cup sleeve 4 and a cup wall 2 of the inner cup 1. A cup lid 5 is detachably arranged on the cup rim 3. A clamping groove 51 in interference fit with the cup rim 3 is formed in the cup lid 5, wherein the interference between the clamping groove 51 and the cup rim 3 is 0.1-0.5mm. The cross section of the inner cup 1 and the cross section of the cup sleeve 4 are round. In use, the inner cup 1 and the cup sleeve 4 can be stably connected and can be conveniently disassembled by reasonably setting the shape of the cup rim 3 as well as the interference between the cup rim 3 and the clamping part 41 of the cup sleeve 4. A certain gap is formed between the inner cup 1 and the cup wall 2, so that on the one hand, static frictional forces are avoided in the assembling and disassembling process, and on the other hand, an insulating layer is formed when hot drinks or cold drinks are contained in the inner cup 1.
A contact step 42 is arranged on the inner side of the lower portion of the cup sleeve 4, the inner side of the contact step 42 makes contact with the cup wall 2, and the cup sleeve 4 is in interference fit with the cup rim 3 mainly by means of the clamping part 41 at the top; and the static friction between the bottom and the cup wall 2 is improved by the contact step 42 additionally arranged at the bottom, so that the connection stability between the inner cup 1 and the cup sleeve 4 is improved, and the inner cup 1 is prevented from falling when the cup sleeve 4 is held by hand.
A cup lid 5 is arranged on the inner cup 1 and a clamping groove 51 in interference fit with the cup rim 3 is arranged on the cup lid 5. The clamping groove 51 comprises an inner wall 52 and an outer wall 53, wherein the inner wall 52 is in interference fit with the inner side of a buckle 34, the outer wall 53 is in interference fit with the outer side of the buckle 34, and the airtightness between the cup lid 4 and the inner cup 1 is improved through dual interference fit, so that the safety in use is improved. The cup lid 5 can be in various forms, which means that different cup lids 5 can be used according to specific requirements and personal drinking habits.

Embodiment 2

This embodiment differs from embodiment 1 in the following aspect: the cross section of the inner cup 1 and the cross section of the cup sleeve 4 are regular polygonal.

Additional possibilities.

The inner cup 1 and the cup sleeve 4 may be made from PP or other elastic environment-friendly healthful plastic. By adoption of environment-friendly slightly-elastic plastic, the inner cup 1 can be in interference fit with the cup sleeve 4 more stably.
The cup sleeve 4 may be in different colors, which means that cup sleeves 4 in different colors can be used according to various subjective factors, so that the overall ornamental value of the cup is improved, and the requirement for personalized customization is met.
The cup sleeve 4 may be transparent, and the outer side of the inner cup 1 may be in different colors or the surface of the inner cup 1 may be covered with different patterns so that the cup can still be in different forms through the cup sleeve 4.
The above embodiments are only specific ones of the invention, but are not intended to limit the structural characteristics of the invention. Other variations or modifications made by those skilled in this field may also fall within the patent scope of the invention which is solely defined by the appended claims.

Claims

A combined-type cup comprising an inner cup (1), wherein the inner cup (1) comprises a cup bottom and a cup wall (2), and a water storage cavity is defined around the cup bottom by the cup wall (2); wherein
a cup rim (3) extending outwards is integrally formed at a top end of the cup wall (2) and comprises a horizontal section (31) and a vertical section (32) in smooth transition with the horizontal section (31),

a buckle (34) is formed on an outer side of the cup wall (2) by the horizontal section (31) and the vertical section (32),

a cup sleeve (4) surrounding the cup wall (2) is detachably arranged outside the inner cup (1),

a clamping part (41) matched with the buckle (34) is integrally formed at a top end of the cup sleeve (4),

a bent part (33) is

arranged at a lower end of the vertical section (32) towards the cup wall and is in interference fit with the clamping part (41);

characterised in that a cup lid (5) is detachably arranged on the cup wall (2), a clamping groove (51) allowing the cup rim (3) to be clamped therein is formed in an outer edge of a lower portion of the cup lid (5) and comprises an inner wall (52) and an outer wall (53), and a groove allowing the buckle (34) to be wrapped therein is formed between the inner wall (52) and the outer wall (53),

wherein the inner wall (52) is in interference fit with an inner side of the buckle (34), and the outer wall (53) is in interference fit with an outer side of the buckle (34);

in that the horizontal interference between the bent part (33) and the clamping part (41) is 0.05-0.5 mm, and the vertical interference between the bent part (33) and the clamping part (41) is 0.2-1 mm;

and in that a contact step (42) is arranged on an inner side of a lower portion of the cup sleeve (4) and has an inner side in contact with the cup wall (2).
A combined-type cup according to claim 1, wherein a 0.5-2mm gap is reserved between the cup sleeve (4) and the cup wall (2).
The combined-type cup according to any one of claims 1-2, wherein a cross section of the inner cup (1) is round or regular polygonal, and a cross section of the cup sleeve (4) is identical with the cross section of the inner cup (1) in shape.