WO2020050681A1

WO2020050681A1 - Paper cup of dual structure and method for manufacturing same

Info

Publication number: WO2020050681A1
Application number: PCT/KR2019/011547
Authority: WO
Inventors: 우봉윤; 우지연
Original assignee: 우봉윤; 우지연
Priority date: 2018-09-07
Filing date: 2019-09-06
Publication date: 2020-03-12

Abstract

A paper cup of a dual structure according to one embodiment of the present invention comprises: an inner paper part having a plurality of diameter adjusting portions formed at predetermined angle intervals on one surface; a drink receiving part formed extending from one end of the inner paper part and bending formed into the inner portion of the inner paper part; and a drinking part formed at a boundary between the inner paper part and the drink receiving part and curled in a radially outward direction of the drink receiving part.

Description

Double structure paper cup and its manufacturing method

The present invention relates to a double structure paper cup and a method for manufacturing the same.

Paper cups are widely used in various ways in our lives. In particular, in recent years, the use of plastics has become an international problem, and the use of disposable plastics has been enforced to reduce the use of disposable plastic products. Accordingly, the necessity of a cup using paper is increasing.

On the other hand, the paper cup mainly used has the advantage of being able to mass-produce with a simple structure, but the temperature of the drink rises quickly when it is cold in summer or the temperature of the drink quickly decreases when it is hot in winter. There was a problem of falling.

[Advanced technical literature]

(Patent Document 1) JP5878437 B2

An object according to an embodiment of the present invention includes an inner portion having a plurality of diameter adjusting portions, and a beverage receiving portion extending from the inner portion and bent in an inner direction of the inner portion, and insulated between the inner portion and the beverage receiving portion. It is to provide a paper cup of a double structure forming a space.

In addition, it is to provide a paper cup of a double structure forming a gripping portion to cover the outer peripheral surface of the inner portion.

In addition, it is to provide a method for manufacturing a paper cup of a double structure to form a heat insulating space between the interior and the beverage receiving part by bringing a sequential manufacturing process for making the paper cup of the double structure.

In addition, the present invention is to provide a method for manufacturing a paper cup having a double structure that forms an insulating space between an outer cup and an inner cup by subjecting a sequential manufacturing process to make a paper cup having a double structure.

In addition, one or a plurality of guide members on the drinking passage space connecting the beverage receiving portion of the double cup paper cup and the penetrating portion for external drinking are alternately arranged in a vertical direction to prevent overflow or spillage into the penetrating portion due to the rapid flow of the beverage. It is to provide a paper cup of a double structure that can be effectively prevented and, when drinking, induces a flow path in a curved form, rather than a straight line, to appropriately control the flow rate or flow rate of the beverage during drinking.

The paper cup of the double structure according to an embodiment of the present invention is formed with an inner portion having a plurality of diameter adjusting portions formed at regular angular intervals on one surface, and extending at one end of the inner portion, to the inner portion of the inner portion The beverage receiving portion is bent, and is formed on the boundary between the inner portion and the beverage receiving portion, and includes a drinking portion curled in the radially outer direction of the beverage receiving portion.

In addition, the gripping portion covering the outer surface of the inner portion, formed on one end of the beverage receiving portion, the first bottom portion is bonded to one another and the adhesive crossing one end of the beverage receiving portion, and formed on one end of the inner portion, the inner It includes a second bottom portion which is adhesively coupled to one end of the branch, and is sealed by the first bottom portion and the second bottom portion between the inner portion and the beverage receiving portion to form an insulating space.

In addition, the insulating space is formed to have a constant thickness between the inner portion and the beverage receiving portion.

In addition, the first protrusion to be fitted with the drinking portion, the second protrusion is continuously formed with the first protrusion and a through portion is formed on the upper surface, and a heat insulating portion is formed on a lower surface to form a cover insulation space. Includes a cover.

In addition, the plurality of diameter adjusting portions are formed to protrude radially outward from the lower portion of the inner portion, and the gripping portion is joined to the protruding portions of the plurality of diameter adjusting portions to cover the outer surface of the inner portion.

The method for manufacturing a paper cup having a double structure according to an embodiment of the present invention includes a rolling step of forming a conical shape by rolling one paper member to which the inner portion and the beverage receiving portion are connected, and the boundary between the inner portion and the beverage receiving portion is contacted Folding step to bend to the inner portion of the inner portion, the diameter to adjust the diameter of the inner portion by protruding a plurality of diameter adjusting portions formed at regular angle intervals on one surface of the inner portion in a radially outward direction of the lower portion of the inner portion Adjusting step, forming the drinking portion to form a drinking portion by rolling in the radial direction outwardly between the inner portion and the drinking portion, the drinking portion is formed on one end of the beverage receiving portion, and the adhesive end of the beverage portion is crossed with each other The first bottom portion forming step of forming the first bottom portion, and formed on one end of the inner portion, And forming a second bottom portion so as to be adhesively coupled to one end of the second portion.

In addition, the step of forming a gripping portion adhesively bonding the gripping portion to cover the outer surface of the inner portion.

In addition, the first bottom portion forming step and the second bottom portion forming step is sealed between the inner portion and the beverage receiving portion to form an insulating space.

In addition, the insulating space is formed with a uniform thickness.

In addition, the first protrusion to be fitted with the drinking portion, the second protrusion is continuously formed with the first protrusion and a through portion is formed on the upper surface, and a heat insulating portion is formed on a lower surface to form a cover insulation space. The cover portion further includes a cover portion coupling step coupled to the drinking portion.

In addition, the step of engaging the gripping portion is bonded to the protruding portions of the plurality of diameter adjusting portions protruding outward from the radius of the inner portion to cover the outer surface of the inner portion.

A method for manufacturing a paper cup having a double structure according to another embodiment of the present invention, in an outer cup constituting an inner portion, a plurality of diameter adjusting portions formed at regular angular intervals on one surface of the outer cup are radially outward from the bottom of the outer cup. Diameter adjustment step of adjusting the diameter of the outer cup by forming a protrusion, inserting an inner cup to insert the inner cup into the outer cup, and drinking the outer cup and the outer circumference of the inner cup in a radially outer direction to form a drinking portion And a secondary forming step.

In addition, the gripping portion forming step of bonding the grip portion to cover the outer surface of the outer cup further comprises.

In addition, between the outer cup and the inner cup is sealed by the forming of the drinking portion to form an insulating space.

In addition, the insulating space is formed with a uniform thickness.

In addition, the first protrusion to be fitted with the drinking portion, the second protrusion continuously formed with the first protrusion and formed with a through portion on the upper surface, and a thermal insulation portion formed on the lower surface to form a cover insulation space The cover portion further includes a cover portion coupling step coupled to the drinking portion.

The paper cup of the double structure according to another embodiment of the present invention is formed on one side of an inner portion having a plurality of diameter adjusting portions formed at regular angular intervals, and extending at one end of the inner portion, inside the inner portion A beverage receiving portion for receiving a beverage, a drinking portion formed at a boundary in contact with the inner portion and the beverage receiving portion, a first protruding portion fitted with the drinking portion, connected to the first protruding portion and a concave portion to be continuously formed and on the upper surface A second protrusion formed with a through portion formed therein and an inner receiving portion; And an outer circumferential wall coupled along the inner surface of the inner circumference of the second protrusion, an insulating member extending to the outer circumferential wall and spaced apart from the inner upper surface of the second protrusion to form an insulating space, and the beverage receiving part and the penetrating part. It includes a lower coupling portion that includes a drinking passage for communicating.

Here, the drinking passage portion is formed to be sealed on the insulating space, the beverage receiving portion and the through-pass portion is formed in a vertical direction on the drinking passage space, the beverage of the beverage receiving portion to flow on the drinking passage At least one guide member coupled to be formed may be formed.

In addition, the drinking passage part is coupled so that one side wall and the other side wall facing the one side wall are mutually sealed to form a space of the drinking passage, and the guide member extends from the one side wall to the other side in the direction of the other wall A first guide member formed to be spaced apart from the side wall and a second guide member extending from the other side wall and spaced apart from the one side wall in the direction of the one side wall may be formed to cross each other in the longitudinal direction of the drinking passage space.

In addition, one end of the first guide member in the direction of the other side wall and one end of the second guide member in the direction of the one side wall may be spaced apart so as to overlap in the longitudinal direction on the drinking passage space.

In addition, one end of the first guide member in the direction of the other side wall and one end of the second guide member in the direction of the one side wall may be formed to be coupled to a position coinciding in the longitudinal direction of the drinking passage space.

Features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, the terms or words used in this specification and claims should not be construed in a conventional and dictionary sense, but rather in order for the inventor to properly define the concept of the term in order to best describe his or her invention. On the basis of the principle that it can be interpreted as meaning and concept corresponding to the technical idea of the present invention.

According to an embodiment of the present invention, as the diameter adjusting portion is formed, the outer circumferential diameter of the inner portion becomes smaller as it goes toward the lower portion of the cup, and thus there is an advantage that the user is comfortable to lift (hold) the hand.

In addition, the double-structured paper cup has an advantage of having an insulating space between the inside and the beverage receiving portion, so that the user can grip the beverage without injuring his or her hand.

In addition, by minimizing the heat dissipation of the beverage contained in the beverage receiving portion to the outside by the heat insulation space, there is an advantage of maintaining the temperature of the beverage as much as possible.

In addition, since the thickness of the insulating space is sufficiently secured by the diameter adjusting portion, there is an advantage of maximizing the insulating effect.

In addition, there is an advantage of maximizing the heat insulating effect of the beverage by fitting the cover portion in which the cover portion insulating space is formed by the heat insulating portion to the drinking portion.

In addition, the gripping portion is bonded to the protruding portions of the plurality of diameter adjusting portions protruding in the radially outward direction of the inner portion to cover the outer surface of the inner portion, thereby forming a space between the inner portion and the gripping portion to improve the heat insulating effect of the beverage. It has the advantage of maximizing.

In addition, by using a manufacturing method according to an embodiment of the present invention, by using a paper member formed integrally with the inner portion and the beverage receiving portion, it reduces the hassle of preparing two members and manufactures a double-structured paper cup manufacturing process. Simplified, there is an advantage of having a good sealing property in forming an insulating space.

In addition, by using the manufacturing method according to another embodiment of the present invention, the outer cup and the outer periphery of the inner cup are rolled together in a radially outward direction to form a drinking portion to produce a double-structured paper cup to produce a convenient double-structured paper cup. There are advantages.

In addition, by alternately arranging one or a plurality of guide members perpendicular to the longitudinal direction of the space of the drinking passage connecting the penetrating portion of the cover portion and the beverage receiving portion inside the cup, the beverage of the beverage receiving portion is rapidly penetrated into the penetrating portion by pressure or external impact. Not only can not be spilled or overflowed, there is an effect that can effectively control the speed and amount of the flowing beverage by naturally flowing the beverage when drinking through the guide member and one open space of the drinking passage.

1 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention;

Figure 2 is an assembled perspective view of a paper cup of a double structure according to an embodiment of the present invention;

Figure 3 is a cross-sectional view taken along line A-A 'of the double structure paper cup of Figure 2;

4 is a bottom view of a double structure paper cup according to an embodiment of the present invention;

5 is an assembled perspective view of a paper cup of a double structure according to an embodiment of the present invention;

Figure 6 is a cross-sectional view of a double-structured paper cup according to an embodiment of the present invention;

7 is an exploded view of a double structure paper cup according to an embodiment of the present invention;

8 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention;

9 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention;

10 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention;

11 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention;

12 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention;

13 is a cross-sectional view of a double structure paper cup according to an embodiment of the present invention;

14 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention;

15 is a cross-sectional view of a double structure paper cup according to an embodiment of the present invention.

16 is an exploded perspective view of a double structure paper cup according to another embodiment of the present invention;

17 is an assembled perspective view of a paper cup of a double structure according to another embodiment of the present invention;

18 is an assembled perspective view of a double structure paper cup according to another embodiment of the present invention;

19 is a sectional view of a double structure paper cup according to another embodiment of the present invention;

20 is a perspective view of a cover portion according to another embodiment of the present invention;

21 is a cut perspective view along AA 'of FIG. 20;

22 is an exploded perspective view of FIG. 21;

23 is a cross-sectional view of a cup of a double structure according to another embodiment of the present invention;

24 is a cross-sectional view of a cover portion according to another embodiment of the present invention,

25 and 26 is a schematic diagram of a drinking passage according to another embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings. It should be noted that, in addition to reference numerals to the components of each drawing in this specification, the same components have the same number as possible, even if they are displayed on different drawings. Further, the terms "one side", "other side", "first", "second", etc. are used to distinguish one component from another component, and the component is limited by the terms no. Hereinafter, in describing the present invention, detailed descriptions of related well-known technologies that may unnecessarily obscure the subject matter of the present invention are omitted.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals denote the same members.

1 and 2 is an assembled perspective view of a double-structured paper cup according to an embodiment of the present invention, Figure 3 is a cross-sectional view AA 'of the double-structured paper cup of Figure 2, Figure 4 is a double according to an embodiment of the present invention It is a bottom view of the structured paper cup.

1 to 3, the inner portion 110 has a plurality of diameter adjusting portions 115 at regular angular intervals. The inner part 110 is not a part that is directly gripped when a user uses a double-structured paper cup according to an embodiment of the present invention, and is a part that substantially determines an outer surface shape of the cup. On the other hand, the diameter adjustment portion 115 may be formed to protrude from the lower end of the inner portion 110 toward the outer radial direction. The plurality of diameter adjusting portions 115 are formed to protrude from the lower end of the inner portion 110 toward the radially outward direction, so that the paper cup of the double structure according to an embodiment of the present invention does not have the shape of a truncated cone, and a certain height is lowered to the lower paper cup. As the diameter of the outer circumferential surface increases, the diameter of the outer circumferential surface decreases from the height at which the diameter adjusting portion 115 is formed to the lower portion of the paper cup to the lower portion of the paper cup, so that the user has the shape of a cup that is easy to lift. have. The inner portion 110 may be a portion gripped by a user of the cup, or the gripping portion 500 may be joined to grip the gripping portion 500 to cover the outer surface of the inner portion 110. In addition, the diameter control portion protrudes in the radially outward direction to expand the volume of the insulating space 400, thereby improving the thermal insulation of the paper cup according to an embodiment of the present invention. Description of the insulating space 400 will be described later.

The 'paper cup' and the 'paper member' in the present specification generally mean a paper material, but are not limited thereto, and other members such as paper materials that are easy to bend and roll (roll) may be used.

On the other hand, the paper cup of the double structure includes a beverage receiving portion 120 extending from one end of the inner portion 110 and bent to an inner portion of the inner portion 110. The beverage receiving part 120 constitutes an inner side surface of the double-structured paper cup, and is formed so that the diameter of the cross section decreases as it goes down from the top of the cup to the bottom of the inside. The beverage receiving portion 120 is a portion in which a beverage is contained in a substantially double-structured paper cup, and the beverage receiving portion 120 may be coated with a waterproof material to prevent the paper material from getting wet with respect to the surface where the beverage touches. .

In addition, a drinking portion 130 ′ is formed at a boundary between the inner portion 110 and the beverage receiving portion 120. The drinking part 130 'serves to allow the user to drink the beverage contained in the beverage receiving part 120 by tilting the paper cup of the double structure according to an embodiment of the present invention by directly contacting the user's mouth. The drinking part 130 ′ may be rolled outward in the radius of the beverage receiving part 120. The drinking portion 130 'is formed in an annular shape by being rolled outward in the radius of the beverage receiving portion 120, so that the user does not feel discomfort by touching the corners when drinking the beverage, and multiple cups are stored in a stack. If you do, count the number of individual cups, or separate the cups that have been stacked individually for convenience.

Referring to FIG. 2, the gripping portion 500 is formed to surround the outer surface of the inner portion 110. The gripping part 500 is a part in which a user directly grips a paper cup having a double structure according to an embodiment of the present invention. The user can drink the beverage contained in the cup while holding the gripping part 500 with a finger to support the cup from falling. Since the gripping portion 500 surrounds the outer surface of the inner portion 110, the diameter adjusting portion 115 constituting the inner portion 110 does not directly touch the hand. Accordingly, there is an advantage to minimize the discomfort that can be felt by touching the diameter control portion 115 directly.

In addition, a first bottom portion 200 is formed at one end of the beverage receiving portion 120. The first bottom part 200 is formed so as to be adhesively bonded to one end of the drink receiving part 120, and accordingly, drinks are formed in the inner space formed by the combination of the drink receiving part 120 and the first bottom part 200. Can be accommodated. At this time, the cross-linked adhesive bonds are formed such that one end of the beverage receiving part 120 is bent 126 in the upper direction, and the outer circumferential surface of the first bottom part 200 is bent 206 in the lower direction. It means to be combined.

Meanwhile, a second bottom portion 300 is formed at one end of the inner portion 110. The second bottom portion 300 is formed to be adhesively coupled to each other with one end of the to-110, and one end of the to-110 is bent to the top 110 to be bent (116). It means that the outer circumferential surface of the bottom portion 300 is formed by bending 306 in a downward direction, so that they are combined to cross each other. Accordingly, the paper cup of the double structure according to an embodiment of the present invention can be sealed inside by the first bottom part 200 and the second bottom part 300 to form an insulating space 400. The insulating space 400 means a space surrounded by the beverage receiving part 120 and the first bottom part 200, and the inner part 110 and the second bottom part 300. The insulating space 400 may be filled with air, and air having low thermal conductivity minimizes the conduction of heat of the beverage accommodated in the beverage receiving unit 120. By minimizing the heat of the beverage accommodated in the beverage receiving unit 120 to the inner portion 110 and the gripping portion 500, the user can drink the hot beverage for a long time, and the user also uses the inner portion 110 Alternatively, when holding the gripping part 500 by hand, since the heat of the drink is minimized, there is an advantage that the drink can be safely consumed without damaging the hand.

Referring to FIG. 3, the insulating space 400 formed between the inner part 110 and the beverage receiving part 120 may have a constant thickness. When the insulating space 400 is formed to have a constant thickness, the diameter of the lower portion of the paper cup formed by the second bottom portion 300 may be formed to be smaller than the diameter of the upper portion of the paper cup formed by the drinking portion 130 '. There is an advantage that can stably grip the double-structured paper cup according to an embodiment of the present invention.

Referring to FIG. 4, the gripping portion 500 may be formed to cover the outer surface of the inner portion 110 by being joined to a portion in which the diameter adjusting portion 115 of the inner portion 110 protrudes in a radially outward direction. Accordingly, a space (S) may be formed between the inner part (110) and the gripping part (500), and the space (S) may be formed to further improve the heat insulation effect in addition to the heat insulation space (400). There is an advantage.

5 is an assembled perspective view of a double-structured paper cup according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view of a double-structured paper cup according to an embodiment of the present invention.

5 and 6, the cover part 600 may include a first protrusion 610. The first protruding portion 610 may be fitted into the drinking portion 130 'formed by rolling in the radially outer direction at the boundary where the inner portion 110 and the beverage receiving portion 120 meet. Since the first protrusion 610 is fitted to the appointment part 130 ', the lid part 600 may stably cover the paper cup, and there is an advantage of preventing the beverage from leaking to the outside.

In addition, the second protrusion 620 is continuously formed with the first protrusion 610. The second protrusion is connected through the first protrusion 610 and the recess 615, and the first protrusion 610 can be fitted to the drinking part 130 ′ by the recess 615. The second protrusion 620 is formed higher than the first protrusion 610, the shape is similar to the lid of a conventional plastic cup. On the other hand, the upper surface of the second protrusion 620 is formed with a through portion 625, through the through portion 625, the beverage contained in the beverage receiving portion 120 comes out so that the user can drink. When the lid part 600 is separated from the drinking part 130 ', the user can drink the beverage by putting a mouth on the drinking part 130'.

In addition, an insulating portion 630 is formed on a lower surface of the cover portion 600 with a predetermined thickness. The heat insulating portion 630 is formed to be spaced apart from the second protrusion 620, and the cover portion insulating space 700 is formed between the spaced portions. The cover portion insulation space 700 formed by the heat insulation portion 630 minimizes the heat or cold air of the beverage contained in the beverage receiving portion 120 to be discharged to the outside, and accordingly, the inner portion 110 and the beverage receiving portion ( 120) The insulating space 400 is formed between the beverage receiving portion 120, the entire periphery of the beverage contained in the beverage by sufficiently securing the insulating layer has the advantage of maximizing the insulating effect.

Hereinafter, a method for manufacturing a paper cup having a double structure according to an embodiment of the present invention will be described in detail.

7 is an exploded view of a double structure paper cup according to an embodiment of the present invention, FIG. 8 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention, and FIG. 9 is a double structure according to an embodiment of the present invention Assembly perspective view of a paper cup, Figure 10 is an assembly perspective view of a double-structured paper cup according to an embodiment of the present invention, Figure 11 is an assembly perspective view of a double-structured paper cup according to an embodiment of the present invention, Figure 12 is the present invention Assembled perspective view of a double structure paper cup according to one embodiment, Figure 13 is a cross-sectional view of a double structure paper cup according to an embodiment of the present invention, Figure 14 is an assembled perspective view of a double structure paper cup according to an embodiment of the present invention, And FIG. 15 is a cross-sectional view of a double structure paper cup according to an embodiment of the present invention.

The method for manufacturing a paper cup having a double structure according to an embodiment of the present invention includes a rolling step of forming a cone shape by rolling one paper member to which the inner portion 110 and the beverage receiving portion 120 are connected. 7 and 8, the inner portion 110 and the beverage receiving portion 120 are formed of one paper member. Since the inner portion 110 and the beverage receiving portion 120 are formed of a single paper member, the hassle of preparing two standard members for manufacturing a double-structured paper cup according to an embodiment of the present invention is reduced. And simplifies the process of manufacturing a double-structured paper cup, and has the advantage of having good sealing properties when forming the insulating space 400.

Referring to FIG. 9, a method of manufacturing a paper cup having a double structure according to an embodiment of the present invention includes a portion of the portion 110 to 110 along the boundary where the portion 110 and the beverage receiving portion 120 contact (line) the line. It includes a folding step of bending the beverage receiving portion 120 into the inner portion. In the paper member having the shape of a truncated cone with an upper surface and a lower surface through a rolling step, the beverage receiving part 120 based on the boundary line in the inner direction of the truncated cone at the boundary where the inner part 110 and the beverage receiving part 120 contact each other. Will be folded. Accordingly, a side surface of the portion to contain the beverage is formed.

In addition, referring to FIG. 10, a plurality of diameter adjusting portions 115 may be formed at regular angle intervals on one surface of the inner portion 110, and the plurality of diameter adjusting portions ( 115) is formed, the lower diameter of the inner portion 110 can be adjusted, and the shape of the overall double-structured paper cup no longer has the shape of a truncated cone to the lower portion of the inner portion 110 like the shape of a normal paper cup. As it goes down, the diameter of the outer periphery decreases. Accordingly, the user has the advantage of being easy to hold the paper cup by using the paper cup having the double structure of this shape. On the other hand, the user can use the paper cup of the double structure according to an embodiment of the present invention by gripping the inner portion 110, and in some cases, the grip portion 500 is adhesively coupled to cover the outer surface of the inner portion 110 By doing so, the gripping part 500 can be gripped to use a double-structured paper cup.

In addition, referring to FIG. 11, between the inner portion 110 and the beverage receiving portion 120, the drinking portion 130 ′ forming a drinking portion 130 ′ by rolling in the radially outer direction of the beverage receiving portion 120 is formed. It can contain. If the user's mouth is sharp in contact, it may cause discomfort when the user drinks the beverage. Accordingly, by forming the drinking portion 130 ′ in an annular shape by rolling the boundary 130 between the inner portion 110 and the beverage receiving portion 120 in a radially outward direction, the user drinks the beverage. Do not feel discomfort by touching the corners of the mouth when doing this. When storing multiple cups in a stack, count the number of individual cups or separate the cups stored separately for convenient use.

In addition, referring to FIG. 13, a method for manufacturing a paper cup having a double structure according to an embodiment of the present invention is formed at one end of the beverage receiving part 120 and is firstly glued to one end of the beverage receiving part 120 so as to be bonded to each other. It may include the step of forming the portion 200. That is, one end of the beverage receiving part 120 is bent 126 in the upper direction of the paper cup, and the outer peripheral surface of the first bottom part 200 is bent 206 in the lower direction of the paper cup, such bending

parts

126 and 206 They are adhesively bonded to engage each other. As a result, the beverage receiving portion 120 and the first bottom portion 200 are firmly coupled so as not to be separated to form an inner space in which the beverage is accommodated. Meanwhile, the beverage receiving portion 120 and the first bottom portion 200 in which the beverage is received and contacted may be coated with a waterproof coating so that the paper cup does not get wet with the beverage.

In addition, it may be formed on one end of the inner portion 110 and may include the step of forming a second bottom portion 300 to be adhesively coupled to one end of the inner portion 110. That is, one end of the inner portion 110 is bent 116 in the upper direction of the paper cup, and the outer circumferential surface of the second bottom portion 300 is bent 306 in the lower direction of the paper cup, such that the

bent portions

116, 306 are It is adhesively bonded to engage with each other. Accordingly, the inner part 110 and the second bottom part 300 may be firmly coupled so as not to be separated. Meanwhile, the first bottom part 200 and the second bottom part 300 are formed so that the first bottom part 200, the beverage receiving part 120, the inner part 110, and the second bottom part 300 are A sealed space may be formed, and an insulating space 400 is formed between the inner portion 110 and the beverage receiving portion 120. By forming the adiabatic space 400, heat loss of the beverage contained in the beverage receiving unit 120 can be minimized, and the user has an advantage of drinking the beverage at an appropriate temperature for a long time.

Meanwhile, the insulating space 400 between the inner portion 110 and the beverage-drinking portion 130 ′ may be formed to have a constant thickness. Since the insulating space 400 is formed to have a constant thickness, the diameter of the lower portion of the paper cup formed by the second bottom portion 300 may be formed smaller than the diameter of the upper portion of the paper cup formed by the drinking portion 130 '. There is an advantage that the user can hold the cup stably.

In addition, the method for manufacturing a paper cup having a dual structure according to an embodiment of the present invention may include a step of forming a gripping portion for adhesively bonding the gripping portion 500 to cover the outer surface of the inner portion 110. By forming the gripping portion 500 to cover the outer surface of the inner portion 110, the heat passing through the inner space 400 has to pass through the gripping portion 500 again, so there is an effect of additional heat insulation, and the user opens the cup. It has the advantage of being able to hold stably. At this time, the gripping portion 500 may be bonded to the protruding portion of the diameter adjusting portion 115 formed to protrude in the radially outward direction of the inner portion 110 to cover the outer surface of the inner portion 110. When the gripping portion 500 is joined to the protruding portion of the diameter adjusting portion 115, a separation space S may be formed between the inner portion 110 and the gripping portion 500, and in one embodiment of the present invention, Through the double-structured paper cup manufacturing method, the insulating space 400 and the space S are formed, thereby maximizing the insulating effect of the double-structured paper cup.

On the other hand, referring to Figures 14 and 15, the method for manufacturing a paper cup of a double structure according to an embodiment of the present invention, the first protrusion 610, the first protrusion 610 and the concave is fitted with the drinking portion 130 ' The second protrusion 620, which is connected to the part 615 and is continuously formed and the through part 625 is formed on the upper surface, and the heat insulating part 630 is formed at a certain thickness on the lower surface to cover the insulating space 700. It may further include; a cover portion coupling step of forming the cover portion 600 is coupled to the drinking portion (130 ').

The cover part 600 may include a first protrusion 610. The first protruding portion 610 may be fitted into the drinking portion 130 'formed by rolling in the radially outer direction at the boundary where the inner portion 110 and the beverage receiving portion 120 meet. Since the first protrusion 610 is fitted to the appointment part 130 ', the lid part 600 may stably cover the paper cup, and there is an advantage of preventing the beverage from leaking to the outside.

Hereinafter, a method for manufacturing a paper cup having a double structure according to another embodiment of the present invention will be described in detail.

16 is an exploded perspective view of a double structure paper cup according to another embodiment of the present invention, and FIG. 17 is an assembled perspective view of a double structure paper cup according to another embodiment of the present invention. In addition, FIG. 18 is an assembled perspective view of a double structure paper cup according to another embodiment of the present invention, and FIG. 19 is a cross-sectional view of a double structure paper cup according to another embodiment of the present invention.

16 and 17, in the outer cup 1100 constituting the inner portion, a plurality of diameter adjusting portions 1150 are formed at a predetermined angular interval on one surface of the outer cup. The diameter adjusting portion 1150 is formed on a portion of the outer surface of the outer cup 1100, and is formed to protrude in the radially outer direction of the top of the outer cup 1100 so that the outer circumferential diameter of the top of the outer cup 1100 is reduced. (Diameter adjustment step). Meanwhile, the inner cup 1200 in which the beverage is accommodated is inserted from the top of the outer cup 1100 (internal cup insertion step). At this time, the upper diameter of the outer cup 1100 and the inner cup 1200 may be the same as each other. When the upper diameters of the outer cup 1100 and the inner cup 1200 are the same, it is easy to form the drinking portion 1300 'when the inner cup 1200 is inserted into the outer cup 1100.

Thereafter, the outer circumferences of the outer cup 1100 and the inner cup 1200 are rolled in a radially outward direction to form a drinking portion 1300 '(drinking portion forming step). The drinking portion 1300 'is formed in an annular shape so that the user can conveniently drink the beverage by contacting the drinking portion 1300'. In addition, when using two members of the outer cup 1100 and the inner cup 1200 as described above, there is an advantage that it is easier to form the drinking portion 1300 '.

On the other hand, when the outer circumferences of the outer cup 1100 and the inner cup 1200 are rolled in a radially outward direction to form a drinking portion 1300 ', the gap between the outer cup 1100 and the inner cup 1200 is sealed and insulated space 400 is formed. By forming the adiabatic space 400, heat loss of the beverage contained in the inner cup 1200 can be minimized, and the user has the advantage of drinking the beverage at an appropriate temperature for a long time.

Meanwhile, the insulating space 400 between the outer cup 1100 and the inner cup 1200 may be formed to have a constant thickness. Since the insulating space 400 is formed to have a constant thickness, the diameter of the lower portion of the paper cup may be formed smaller than the diameter of the upper portion of the paper cup formed by the drinking part 1300 ', so that the user can stably grip the cup. There is an advantage.

In addition, the paper cup manufacturing method of the double structure according to another embodiment of the present invention may adhesively couple the gripping part 500 to cover the outer surface of the outer cup 1100 (the gripping part forming step). By forming the gripping portion 500 to cover the outer surface of the outer cup 1100, heat passing through the inner space 400 has to pass through the gripping portion 500 again, so there is an effect of additional heat insulation and the user It has the advantage of being able to hold stably.

18 is an assembled perspective view of a double structure paper cup according to another embodiment of the present invention, and FIG. 19 is a cross-sectional view of a double structure paper cup according to another embodiment of the present invention.

The method for manufacturing a paper cup having a double structure according to another embodiment of the present invention may further include a cover part forming step in which the cover part 600 is coupled to the drinking part 1300 ′. 17 and 18, the lid part 600 may include a first protrusion 610. The first protrusion 610 may be fitted into the drinking portion 1300 'formed by rolling in the radially outer direction at a boundary where the outer cup 1100 and the inner cup 1200 meet. Since the first protrusion 610 is fitted to the drinking part 1300 ', the lid part 600 may stably cover the paper cup, and has an advantage of preventing the beverage from leaking to the outside.

In addition, the second protrusion 620 is continuously formed with the first protrusion 610. The second protrusion 620 is connected through the first protrusion 610 and the recess 615, and the first protrusion 610 may be fitted to the drinking part 1300 ′ by the recess 615. It is. The second protrusion 620 is formed higher than the first protrusion 610, the shape is similar to the lid of a conventional plastic cup. Meanwhile, a through portion 625 is formed on an upper surface of the second protrusion 620, and a beverage contained in the inner cup 1200 comes out through the through portion 625 so that the user can drink it. When the lid portion 600 is separated from the drinking portion 1300 ', the user can drink the beverage by putting the mouth on the drinking portion 1300'.

In addition, an insulating portion 630 is formed on a lower surface of the cover portion 600 with a predetermined thickness. The heat insulating portion 630 is formed to be spaced apart from the second protrusion 620, and the cover portion insulating space 700 is formed between the spaced portions. The cover portion insulation space 700 formed by the heat insulation portion 630 minimizes the heat or cold air of the beverage contained in the inner cup 1200 to flow out, and accordingly, the outer cup 1100 and the inner cup 1200 There is an advantage of maximizing the thermal insulation effect by sufficiently securing the thermal insulation layer for the entire circumference of the beverage contained in the inner cup 1200 together with the thermal insulation space 400 formed therebetween.

20 is a perspective view of a lid part according to another embodiment of the present invention, FIG. 21 is a cut perspective view according to AA 'of FIG. 20, FIG. 22 is an exploded perspective view of FIG. 21, and FIG. 23 is a view according to another embodiment of the present invention. 24 is a cross-sectional view of a cup of a double structure, and FIG. 24 is a cross-sectional view of a lid part according to another embodiment of the present invention, and FIG. 25 is a schematic view of a drinking passage according to another embodiment of the present invention.

20 and 21, the cup of the double structure according to another embodiment of the present invention has a plurality of diameter control portions formed at regular angular intervals on one surface, the inner portion 110, the inner portion It is formed extending at one end of the (110), the beverage receiving portion 120 for accommodating a drink inside the interior portion 110, the interior portion 110 and the beverage receiving portion 120 is formed at the border The drinking part 130 ', the first protrusion 610 that is fitted with the drinking part 130', and connected to the first protrusion 610 and the recess are continuously formed, and the through part 625 is formed on the upper surface. A second protrusion 620 formed and formed with an inner receiving portion; And an outer circumferential wall 740 coupled along the inner surface 620a of the inner circumference of the second protrusion 620, extending to the outer circumferential wall 740 and spaced apart from the inner upper surface of the second protrusion 620. It includes a lower cover portion 700a including a heat insulating member 730 forming a space and a drinking passage portion 750 communicating the beverage receiving portion 120 and the through portion 625.

First, since another embodiment of the present invention relates to another embodiment of the cover portion of the double-structured cup, a detailed description of the configuration of the inner portion, the beverage receiving portion, the first protrusion and the second protrusion of the double-structured cup has already been made. Since it overlaps with the description of one embodiment of the above-described double structure cup, it will be omitted.

The cover portion of the cup of the double structure of another embodiment of the present invention protrudes upward and the inner accommodating portion is formed, and the outer circumferential wall 740 coupled to the inner surface 620a around the inner accommodating portion, the second Includes a heat insulating member 730 spaced apart from the upper portion of the protrusion to form an internal insulation space, and a drinking passage 753 portion 750 for communicating with the beverage receiving portion and the through portion of the cup so that the beverage flows to the outside and the user can drink it. do.

Here, the cover portion of another embodiment of the present invention is completely fitted into the inner side of the second protrusion to form an internal insulation space, and at the same time, a drinking passage portion forming a drinking passage 753 communicating with the through portion and the beverage receiving portion ( 750). The drinking passage part 750 is formed to be able to flow the beverage of the beverage receiving part to the through part 625 of the second protrusion 620 only through the drinking passage part 750 as a closed space separate from the insulating space.

In general, a separate stopper may be used to prevent the beverage from overflowing into the penetrating portion 625 or overflowing the beverage by the movement of the user holding the cup. However, the risk of overflowing the penetrating portion 625 by the flow of the internal beverage due to the sudden outflow and movement of the beverage due to the increase in internal pressure during the closure of the stopper and the inconvenience of drinking by the user by such a separate means There was a limit to fundamentally blocking it. The cover portion 600 of the cup of the double structure according to another embodiment of the present invention prevents the beverage of the beverage receiving portion 120 from being suddenly discharged to the outside and induces the flow of a natural internal beverage when drinking. It is to do.

22, the lower cover portion 700a is coupled to the inner receiving portion of the second protrusion 620. The lower cover portion 700a is spaced apart from the outer circumferential wall 740 and the upper end of the second protrusion 620 coupled along the inner surface 620a of the inner receiving portion of the second protrusion 620 to form an insulating space therein. The insulating member 730 is coupled. It is sealed separately from the heat insulation space, but the drinking passage portion 750 is formed to communicate with the through portion 625 and the beverage receiving portion 120 so as to be drinkable.

22 shows that the lower cover portion 700a can be fitted and fixed inwardly through the engaging projection 620b of FIG. 22, but the lower cover portion 700a is coupled to the inner portion of the second protrusion according to the manufacturing method. Of course, it can be made integrally. The engaging protrusion 620b may be formed along the inner circumference of the circumference so that the lower cover portion 700a can be stably supported on the inner side of the second protrusion 620, and is a rubber capable of cushioning such as an elastic member. Or, of course, it can be formed of a plastic material. Through this, in the case of a separable type, the lower cover portion 700a may be replaced or exchanged.

Drinking passage 753 portion 750 is formed to face one side wall 751 and the other side wall 752 forming a space to connect the through portion and the beverage receiving portion, one side wall 751 and the other side wall 752 The silver may be integrally extended so as to wrap each other to form a closed space. The drinking passage 753 is a space connecting the penetrating portion 625 and the beverage receiving portion 120, and the beverage may abruptly overflow or splash out of the space. In order to prevent sudden overflow and spillage of the beverage,

guide walls

751a and 752a are formed on a space connecting the drinking passage 753. The

guide walls

751a and 752a protrude from one side wall 751 or the other side wall 752 and extend in the opposite direction, so as not to contact the opposite direction wall and are formed while securing a space in which the beverage can flow.

As shown in FIG. 25, by forming the first guide wall 751a and the second guide wall 752a in a direction perpendicular to the direction between the through portion 625 of the drinking passage 753 and the beverage receiving portion, the beverage The

guide walls

751a and 752a may block the sudden flow from the accommodating portion 120 (see the direction of FIG. 25 f1). When the beverage receiving part 120 suddenly flows out to the outside due to external force or pressure, the linear motion of the linear spring bounces in consideration of the general speed, so that the

guide walls

751a and 752a block the flow of such sudden beverage. You can. In addition, in the case of naturally raising the cup for drinking, the beverage receiving part 120 as shown by the arrow of f2 through the passage opened at one end of the first guide wall 751a and the second guide wall 752a in the shape of a zigzag The beverage naturally flows from the penetrating portion to prevent the user's drinking from being disturbed, and there is a structural advantage that the user can drink at an appropriate flow rate and flow rate by naturally preventing the sudden amount or overflow of the beverage even when the user drinks.

25, the first guide wall 751a and the second guide wall 752a are separated into a longitudinal space in which a drinking passage 753 is formed on one side wall 751 and the other side wall 752, respectively. By being formed in a zigzag or alternately, it is possible to effectively block the beverage flowing suddenly on the drinking passage 753. End portions may be formed on the drinking passage 753 of the first guide wall 751a and the second guide wall 752a to coincide with each other in the forming direction of the drinking passage 753.

Alternatively, as shown in FIG. 26, depending on the space of the drinking passage 753, they overlap each other in the longitudinal direction of the drinking passage 753, that is, the end of the first guide wall 751a and the second guide wall 752a. The ends of the may be formed to run in a mutually zigzag direction. By doing so, the beverage can flow to the penetrating portion 625 only through the flow of the natural beverage, and when the sudden flow or the flow amount when the cup collapses increases at one time, the outflow rate is rapidly reduced and the external penetrating portion 625 It can effectively block or delay the outflow of beverage to the furnace.

The present invention has been described in detail through specific examples, but this is for specifically describing the present invention, and the paper cup of the double structure and the method of manufacturing the same according to the present invention are not limited thereto, and are covered within the technical spirit of the present invention. It will be apparent that modification and improvement are possible by a person having ordinary knowledge in the field.

All simple modifications and variations of the present invention belong to the scope of the present invention, and the specific protection scope of the present invention will become apparent by the appended claims.

[Description of codes]

110: to 115 115: diameter adjustment portion

116: bending part 120: drink receiving portion

126: bending part 130: border

130 ': Drinking part 200: First bottom part

206: bent portion 300: second bottom portion

306: Bending part 400: Insulation space

500: gripping part 600: cover part

610: first protrusion 615: recess

620: second protrusion 620a: inner surface

620b: engaging projection 625: through

630: insulation 700: cover insulation space

S: Space

700a: lower cover portion 730: insulating member

740: outer wall 750: drinking passage

751: one side wall 751a: first guide wall

752: other side wall 752a: second guide wall

753: drinking passage

Claims

An inner portion having a plurality of diameter adjusting portions formed at regular angular intervals on one surface;

A beverage receiving portion extending at one end of the to portion and bent to an inner portion of the to portion; And

A paper cup having a double structure, including; a drinking portion formed at a boundary between the inner portion and the beverage receiving portion and curled in a radially outer direction of the beverage receiving portion.
The method according to claim 1,

A gripping part covering the outer surface of the inner part;

A first bottom portion formed at one end of the beverage receiving portion and being glued to one end of the beverage receiving portion; And

It is formed on one end of the inner portion, the second bottom portion that is bonded to each other by crossing one end of the inner portion; includes,

A paper cup having a double structure that is sealed by the first bottom portion and the second bottom portion to form an insulating space between the inner portion and the beverage receiving portion.
The method according to claim 2,

The thermal insulation space is a double-structured paper cup formed to have a constant thickness between the inner portion and the beverage receiving portion.
The method according to claim 1,

A first protrusion that is fitted with the drinking portion, a second protrusion that is continuously formed by being connected to the first protrusion and a recess, and a through portion is formed on the upper surface, and a heat insulating portion is formed on a lower surface to form a cover insulation space. A paper cup of a double structure comprising a cover portion to form.
The method according to claim 1,

The plurality of diameter adjusting portions are formed to protrude radially outward from the lower portion of the inner portion, and the gripping portion is joined to a protruding portion of the plurality of diameter adjusting portions to cover the outer surface of the inner portion.
Rolling step of making a shape of a truncated cone by rolling one paper member connected to the inner portion and the beverage receiving portion;

A folding step of bending a boundary where the inner portion and the beverage receiving portion are in contact with the inner portion of the inner portion;

A diameter adjustment step of adjusting the diameter of the to-by portion by protruding a plurality of diameter-adjusting portions formed at regular angular intervals on the inside of the to-out portion in a radially outward direction of the bottom of the to-the portion;

Forming a drinking portion by forming a drinking portion by rolling the beverage receiving portion in a radially outward direction between the inner portion and the beverage receiving portion;

A first bottom portion forming step formed at one end of the beverage receiving portion and forming a first bottom portion so as to be adhesively bonded to one end of the beverage receiving portion; And

It is formed on one end of the inner portion, the second bottom portion forming step of forming a second bottom portion so as to be bonded to each other by crossing one end of the; a double structure paper cup manufacturing method comprising a.
The method according to claim 6,

A method for manufacturing a paper cup having a double structure, further comprising; a gripping portion forming step of adhesively bonding the gripping portion to cover the outer surface of the inner portion.
The method according to claim 6,

The first bottom portion forming step and the second bottom portion forming step is sealed between the inner portion and the beverage receiving portion to form a double structure paper cup manufacturing method.
The method according to claim 8,

The insulating space is a double-layered paper cup manufacturing method is formed to a uniform thickness.
The method according to claim 7,

A first protrusion that is fitted with the drinking portion, a second protrusion that is continuously formed by being connected to the first protrusion and a recess, and a through portion is formed on the upper surface, and a heat insulating portion is formed on a lower surface to form a cover insulation space. A method for manufacturing a paper cup having a double structure, further comprising; a cover portion coupling step of forming a cover portion coupled to the drinking portion.
The method according to claim 7,

Wherein the gripping step is bonded to the protruding portion of the plurality of diameter control portion formed to protrude in the radially outward direction of the inner portion to cover the outer surface of the inner portion of the paper cup manufacturing method.
In the outer cup constituting the inner portion, a diameter adjusting step of adjusting the diameter of the outer cup by protruding a plurality of diameter adjusting portions formed at regular angular intervals on one surface of the outer cup in a radially outer direction of the lower end of the outer cup;

An inner cup insertion step of inserting an inner cup into the outer cup; And

Method of manufacturing a paper cup of a double structure comprising; forming a drinking portion to roll the outer circumference of the outer cup and the inner cup in a radially outer direction.
The method according to claim 12,

A method for manufacturing a paper cup having a double structure, further comprising; a gripping part forming step of adhesively bonding the gripping part to cover the outer surface of the outer cup.
The method according to claim 12,

A method for manufacturing a paper cup having a double structure, in which a space between the outer cup and the inner cup is sealed by the forming of the drinking portion to form an insulating space.
The method according to claim 14,

The insulating space is a double-layered paper cup manufacturing method is formed to a uniform thickness.
The method according to claim 13,

A first protrusion that is fitted with the drinking portion, a second protrusion that is continuously formed by being connected to the first protrusion and a recess, and a through portion is formed on the upper surface, and a heat insulating portion is formed on a lower surface to form a cover insulation space. A method for manufacturing a paper cup having a double structure, further comprising; a cover portion coupling step of forming a cover portion coupled to the drinking portion.
An inner portion having a plurality of diameter adjusting portions formed at regular angular intervals on one surface;

A beverage accommodating portion extending at one end of the inner portion and accommodating a beverage inside the inner portion;

A drinking portion formed at a boundary where the inner portion and the beverage receiving portion contact;

A first protrusion fitted with the drinking portion;

A second protrusion connected to the first protrusion and the recess and continuously formed, a through portion formed on an upper surface, and an inner receiving portion formed; And

An outer circumferential wall coupled along the inner surface of the inner circumference of the second protrusion, an insulating member extending to the outer circumferential wall and spaced apart from the inner upper surface of the second protrusion to form an insulating space, and communicating with the beverage receiving portion and the through portion A paper cup of a double structure including a lower coupling portion including a drinking passage portion.
The method according to claim 17,

The drinking passage part,

It is formed to be sealed on the heat insulating space, at least one or more formed so as to be formed in a vertical direction on the drinking passage space connecting the beverage receiving portion and the penetrating portion so as to allow the beverage of the beverage receiving portion to flow on the drinking passage. Double structure paper cup with guide member.
The method according to claim 18,

The drinking passage part is coupled so that one side wall and the other side wall facing the one side wall are mutually sealed to form a space of the drinking passage,

The guide member is a first guide member extending from the one side wall to be spaced apart from the other side wall in the direction of the other side wall and a second guide member extending from the other side wall to be spaced apart from the one side wall in the direction of the one side wall A paper cup of a double structure formed so that they cross each other in the longitudinal direction on the drinking passage space.
The method according to claim 19,

The paper cup having a double structure formed so that one end of the first guide member in the direction of the other side wall and one end of the second guide member in the direction of the one side wall overlap in the longitudinal direction on the drinking passage space.
The method according to claim 20,

The paper cup of the double structure formed so that one end of the first guide member in the direction of the other side wall and one end of the second guide member in the direction of the one side wall are coupled to the same position in the longitudinal direction of the drinking passage space.