Lid Integrated Disposable Cup
The integrated lid and straw design in disposable cups addresses leakage and separation issues, improving safety and reducing environmental impact and costs by integrating the lid and straw into a single unit.
Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- 김주영
- Filing Date
- 2023-08-03
- Publication Date
- 2026-07-15
AI Technical Summary
Disposable cups with separate lids and straws face issues such as leakage, separation, and environmental pollution due to plastic waste, along with high manufacturing and disposal costs.
A disposable cup with an integrated lid and straw, featuring a multi-stage design with inclined surfaces and flanges to prevent leakage and separation, and a single-unit manufacturing process to reduce waste and costs.
The integrated design enhances airtightness and safety, reduces manufacturing costs, and minimizes environmental impact while ensuring safe consumption of beverages.
Smart Images

Figure 112023085469720-PAT00001_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to a lid-integrated disposable cup including a straw with a lid integrated into the disposable cup. Background Technology
[0003] Generally, takeout beverage shops provide drinks in disposable paper cups. Shops attach lids to the disposable cups to prevent spills, and users easily consume the beverage using straws.
[0004] Here, the lid used for a disposable paper cup (hereinafter referred to as the 'cup') may be formed from a plastic material, and is molded into a lid set by the user through a plastic molding method that utilizes heat and pressure, etc.
[0005] However, when attaching a lid to a cup, a small gap may form between the cup and the lid due to the attachment process and the expansion pressure caused by the contents. This can lead to serious problems, such as leakage of contents through the gap when the user tilts the cup to drink, or the cup and lid separating while being held or drinking if the attachment is not perfect, which can cause contamination of the user's clothes with the contents.
[0006] In addition, there were problems such as the possibility of burning the mouth if a large amount of contents was expelled unintentionally while drinking a hot beverage.
[0007] In addition, lids and straws used with cups are disposable and are discarded after use. Since lids and straws are generally made of plastic, they generate a large amount of waste that is difficult to recycle, causing environmental pollution. Furthermore, there were problems such as high manufacturing costs because cups and straws must be manufactured separately, and high costs associated with separating and disposing of used cups, lids, and straws. Prior art literature
[0009] Reference 1: Korean Registered Patent No.: 10-2047110 Reference 2: Korean Published Patent No.: 10-2020-0091661 The problem to be solved
[0010] The present invention provides a disposable cup with an integrated lid including a straw that prevents the occurrence of a fine gap between the cup and the lid and the separation of the cup and the lid due to internal expansion pressure during the bonding process of bonding the lid to the cup and in the bonded state, allows the beverage to be properly provided to the user while drinking a hot beverage, and can reduce environmental pollution, manufacturing costs, and disposal costs. means of solving the problem
[0012] The present invention relates to a disposable cup with an integrated lid including a straw, comprising a main body having a receiving portion formed therein for receiving contents and an opening formed at the top portion that communicates to allow contents to be introduced and withdrawn to the inside and outside, wherein the main body includes a multi-stage portion formed in a multi-stage shape facing from the opening on one side toward the other side.
[0013] Additionally, the multi-stage section may include a straw section formed such that the length of the multi-stage section adjacent to the opening is longer than the length of another multi-stage section, allowing the contents to be sucked in and consumed through the opening.
[0014] Additionally, the multi-stage portion may include a first inclined surface formed to extend obliquely from the opening toward the receiving portion, a first flange formed to extend horizontally from the first inclined surface toward the ground, a second inclined surface formed to extend obliquely from the first flange in the same direction as the first inclined surface, and a second flange formed to extend horizontally from the second inclined surface in the same direction as the first flange to seal the main body.
[0015] In addition, the first inclined surface may be provided to be longer than the length of the second inclined surface.
[0016] In addition, the area of the first flange may be larger than that of the second flange. Effects of the invention
[0018] The present invention relates to a lid-integrated disposable cup including a straw, and can exhibit the following effects.
[0019] First, according to the disposable cup with an integrated lid including a straw of the present invention, even if the user tilts the cup to drink, leakage of the contents and separation of the cup and the lid are prevented, thereby improving airtightness and safety.
[0020] Secondly, according to the disposable cup with a lid including a straw of the present invention, the multi-stage shape allows for the appropriate amount of contents to be discharged, thereby ensuring safety from risks such as burns caused by hot contents, thus maximizing safety.
[0021] Thirdly, according to the disposable cup with a lid including a straw of the present invention, since the cup and the lid are manufactured as a single unit, manufacturing costs are reduced, and the cup is equipped with a lid and a straw, thereby having the effect of protecting the environment.
[0022] Fourth, according to the present invention, the lid-integrated disposable cup including a straw allows for drinking through the lid of the integrated disposable cup, thereby improving hygiene and psychological stability.
[0023] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing
[0025] FIG. 1 is a perspective view showing a first embodiment of a lid-integrated disposable cup including a straw according to the present invention. Figure 2 is an exploded perspective view showing the cup of Figure 1 separated. Figure 3 is a side view showing Figure 1 from the side. FIG. 4 is a side view showing a second embodiment of a lid-integrated disposable cup including a straw according to the present invention. Fig. 5 is a side view of Fig. 4. Figure 6 is a cross-sectional view showing A-A' of Figure 5. FIG. 7 is a perspective view showing a third embodiment of a lid-integrated disposable cup including a straw according to the present invention. Fig. 8 is a bottom view of Fig. 7. Fig. 9 is a side view of Fig. 7. Specific details for implementing the invention
[0026] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. In the drawings, parts unrelated to the explanation have been omitted to clearly explain the present invention, and the same reference numerals have been used for identical or similar components throughout the specification.
[0027] In addition, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is illustrated.
[0028] In the present invention, the term "on" means being located above or below the target member, and does not necessarily mean being located above with respect to the direction of gravity. Furthermore, throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.
[0029] Furthermore, throughout the specification, when it is stated that a part is "connected" to another part, this includes not only cases where they are "directly connected," but also cases where they are "indirectly connected" with other members in between.
[0030] FIG. 1 is a perspective view showing a first embodiment of a lid-integrated disposable cup including a straw according to the present invention, FIG. 2 is an exploded perspective view showing the cup of FIG. 1 separated, FIG. 3 is a side view showing FIG. 1 from the side, FIG. 4 is a side view showing a second embodiment of a lid-integrated disposable cup including a straw according to the present invention, FIG. 5 is a side view of FIG. 4, FIG. 6 is a cross-sectional view showing A-A' of FIG. 5, FIG. 7 is a perspective view showing a third embodiment of a lid-integrated disposable cup including a straw according to the present invention, FIG. 8 is a bottom view of FIG. 7, and FIG. 9 is a side view of FIG. 7.
[0031] Hereinafter, a first embodiment of a lid-integrated disposable cup including a straw according to the present invention will be described with reference to the attached drawings.
[0032] FIG. 1 is a perspective view showing a first embodiment of a lid-integrated disposable cup including a straw according to the present invention, and FIG. 2 is an exploded perspective view showing the cup of FIG. 1 separated.
[0033] Referring to FIGS. 1 and 2, a first embodiment of the lid-integrated disposable cup including a straw according to the present invention is described. The lid-integrated disposable cup (1) including a straw includes a main body (10) having a receiving portion (not shown) formed inside for receiving contents and an opening (12) formed to allow contents to be drawn in and out to the inside and outside.
[0034] Contents such as water or beverages can be contained in the receiving portion of the main body (10), and when the main body (10) is tilted, the contents can be discharged (drawn out) through the opening (12).
[0035] The main body (10) may include a multi-stage section (20) having a multi-stage shape facing from an opening (12) on one side toward the other side.
[0036] For convenience of explanation, the multi-stage section (20) is described as being separated from the main body (10) and opened as in FIG. 2, but in the first embodiment, it is preferable that the main body (10) and the multi-stage section (20) be formed integrally, and such a molding method can be achieved by any method such as a general paper cup molding method or double injection molding.
[0037] The multi-stage section (20) can seal the main body (10) except for the opening (12) that connects the inside and outside of the main body (10). The multi-stage section (20) may include a straw section (S) formed such that the length of the multi-stage adjacent to the opening (12) is longer than the length of the other multi-stage, allowing the contents to be sucked in and consumed through the opening (12).
[0038] The multi-stage section (20) may include a first inclined surface (201) formed to extend obliquely from the opening (12) toward the receiving section, a first flange (202) formed to extend horizontally from the first inclined surface (201) toward the ground, a second inclined surface (203) formed to extend obliquely from the first flange (202) in the same direction as the first inclined surface (201), and a second flange (204) formed to extend horizontally from the second inclined surface (203) in the same direction as the first flange (202) to seal the main body (10).
[0039] The first inclined surface (201) and the second inclined surface (203) form a predetermined angle toward the opening (12), and when the user tilts the main body (10), the contents can move to the opening (12) along the inner surface of the first and second inclined surfaces (201, 203).
[0040] The multi-stage section (20) may be provided such that the length of the multi-stage section adjacent to the opening (12), i.e., the length (a) of the first inclined surface (201), is longer than the length of the other multi-stage section, i.e., the length (a') of the second inclined surface (203).
[0041] For example, the opening (12) between the main body (10) and the first inclined surface (201) can be formed to function as a straw part (S) so that it can be consumed. Accordingly, the user can drink the contents by tilting the main body (10) through the straw part (S).
[0042] Accordingly, the contents inside the main body (10) are provided toward the opening (12) under the guidance of the multi-stage section (20), thereby preventing a large amount of contents from being discharged through the opening (12) unintended by the user in the case of hot drinking water, thus improving safety.
[0043] In addition, the lid is integrally provided on the main body (10) to save resources, and has the effect of preventing leakage of contents or detachment of the lid from the cup between the lid and the cup as in the conventional method.
[0044] Additionally, the first flange (202) is provided with a larger area than the second flange (204) so that when the cup is tilted, the heat conductivity between the contents in contact with the first flange (202) and the air outside the main body (10) can be increased.
[0045] Meanwhile, the same effect as the present invention can be achieved when a corresponding lid is attached to a cup having a multi-stage shape. That is, in the conventional case, there was a problem where a gap occurred between the cup and the lid when the lid was attached to the cup.
[0046] However, when a lid is slidably coupled to a cup having a multi-stage structure like the present invention, the fastening ability is further improved, and the sealing ability is enhanced. Additionally, as explained above, the straw can also be used integrally, which will be explained below with reference to FIGS. 4 to 6.
[0047] FIG. 4 is a side view showing a second embodiment of a lid-integrated disposable cup including a straw according to the present invention, FIG. 5 is a side view of FIG. 4, and FIG. 6 is a cross-sectional view showing A-A' of FIG. 5.
[0048] Referring to FIGS. 4 to 6, a second embodiment is described as follows: a lid-integrated disposable cup (1) including a straw may include a main body (10) that is open in a multi-stage shape and a cover (30) that seals the main body (10).
[0049] The cover (30) can be provided in a multi-stage shape to be coupled to the main body (10), and the cover (30) can be slidably coupled to the main body (10) to increase coupling (fastening) strength, thereby preventing the contents inside from leaking out or the cover (30) from being separated from the main body (10).
[0050] As described in the first embodiment, the main body (10) and the cover (30) have mutually corresponding multi-stage portions (20), and the cover (30) is coupled to the multi-stage portion (20) of the main body (10) to open and close the receiving portion of the main body (10). Meanwhile, the cover (30) may be slidably coupled to the main body (10) and then formed integrally through double injection molding.
[0051] A lid-integrated disposable cup (1) including a straw may include a coupling means for sliding the cover (30) along the inclined surface (201, 203) of the main body (10) and coupling it to the flange (202, 204) of the main body (10).
[0052] The main body (10) may include a connecting projection (14) formed protruding along the outer circumference of the main body multi-stage portions (201, 202, 203, 204).
[0053] The multi-stage section (20) may include a main body multi-stage section (201, 202, 203, 204) provided in the main body (10) and a cover multi-stage section (301, 302, 303, 304) provided in the cover (30) corresponding to the main body multi-stage section.
[0054] The coupling means may include a guide part (32) provided on the inner circumference of the cover multi-stage part (301, 302, 303, 304) to secure the cover (30) to the main body (10) by pressing the coupling projection (14) from both sides.
[0055] The guide portion (32) may include a first guide (321) and a second guide (322) that are fixed by being in close contact on both sides with the connecting projection (14) in between.
[0056] These first guide (321) and second guide (322) can be in close contact with the connecting projection (14) to prevent the contents from leaking out of the main body (10).
[0057] In addition, there may be a problem where some of the contents may leak out at the joint where the inclined surface and the flange meet. Accordingly, in the present invention, the second guide (322) is provided in a hemispherical shape larger than the first guide (321) and is formed integrally without interruption, and can maximize the effect of preventing the contents from leaking out of the main body (10) by covering a larger area or protruding inward compared to the first guide (321).
[0058] FIG. 7 is a perspective view showing a third embodiment of a lid-integrated disposable cup including a straw according to the present invention, and FIG. 8 is a bottom view of the cover of FIG. 7.
[0059] According to the third embodiment of the lid-integrated disposable cup including a straw according to the present invention with reference to FIGS. 7 and 8, external air can be introduced into the lid-integrated disposable cup including a straw to supply an appropriate amount of contents to the user.
[0060] The cover (30) may include an air inlet (40) inside that guides air entering from outside the main body (10) through the opening (12) into the receiving portion of the main body (10).
[0061] The air inlet (40) can supply external air into the main body (10). The air inlet (40) has a structure in which the internal receiving space widens and then narrows again along the direction guided to the receiving section, so a Venturi effect can be expected.
[0062] The air inlet section (40) may include an inlet (42) that has an area smaller than that of the opening (12) and introduces air from outside the main body (10) through the opening (12), a guide section (44) that extends from the inlet (42) and guides the air to the receiving section, becoming larger than the inlet (42) and then smaller, and a discharge section (46) that discharges the air moving along the guide section (44) to the receiving section.
[0063] Fig. 9 is a side view of Fig. 7.
[0064] Referring to FIG. 9, the inlet (42) and the guide (44) may have a discharge hole (441) formed therein to discharge the contents introduced through the discharge port (46) into the receiving portion.
[0065] The discharge hole (441) is provided to be inclined toward the receiving section in the air flow path within the air inlet section (40) in the same direction as the inclined surface, so that when the cup is tilted, the contents within the air inlet section (40) are discharged through the discharge hole (441), thereby preventing the contents from flowing back into the inlet (42).
[0066] Additionally, the contents introduced through the discharge port (46) can be discharged through the discharge port (441) when rotating around the opening (12). Accordingly, the air introduced through the inlet port (42) can pass through the guide port (44) and be discharged into the receiving portion through the discharge port (46), causing the contents within the receiving portion to move toward the opening (12), thereby allowing only the contents to be smoothly supplied to the user.
[0067] According to the disposable cup with an integrated lid including a straw according to the present invention, even if the user tilts the cup to drink, it is sealed to prevent leakage of the contents and prevents separation of the cup and lid, thereby improving airtightness, safety, and convenience. Furthermore, due to the multi-stage shape, the amount of contents discharged is appropriately provided, ensuring safety from risks such as burns even with hot contents. Since the cup and lid are manufactured as a single unit, manufacturing costs are reduced, and the environment can be protected by equipping the cup with both a lid and a straw. Additionally, drinking is possible through the integrated disposable cup lid, which has the effect of improving hygiene and psychological stability.
[0068] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.
[0069] The scope of the present invention is defined by the claims set forth below, and all modifications or variations derived from the meaning and scope of the claims and their equivalents should be interpreted as being included within the scope of the present invention.
[0070] Although preferred embodiments of the present invention have been described above, the present invention is not limited thereto and can be implemented with various modifications within the scope of the claims, the detailed description of the invention, and the attached drawings, and it is obvious that such modifications also fall within the scope of the present invention. Explanation of the symbols
[0072] 1: Disposable cup with integrated lid 10: Main body 20: Multistage section
Claims
Claim 1 A lid-integrated disposable cup comprising a main body having a receiving portion formed therein for receiving contents and an opening formed at the top portion that communicates to allow contents to be drawn in and out to the inside and outside, wherein the main body comprises a multi-stage portion provided in a multi-stage shape facing the other side from the opening on one side; and the multi-stage portion comprises a first inclined surface formed to extend obliquely from the opening toward the receiving portion, a first flange formed to extend horizontally from the first inclined surface toward the ground, a second inclined surface formed to extend obliquely from the first flange in the same direction as the first inclined surface, and a second flange formed to extend horizontally from the second inclined surface in the same direction as the first flange to seal the main body. Claim 2 A lid-integrated disposable cup including a straw, wherein, in claim 1, the multi-stage portion is provided such that the length of the multi-stage portion adjacent to the opening is longer than the length of another multi-stage portion, and is formed to suck in the contents and consume them through the opening. Claim 3 delete Claim 4 In claim 1, the first inclined surface is provided longer than the length of the second inclined surface and is a lid-integrated disposable cup including a straw. Claim 5 In claim 1, the lid-integrated disposable cup including a straw, wherein the first flange is provided with an area larger than that of the second flange.