TW202043108A - Container lid and method for manufacturing the same - Google Patents

Abstract

The present disclosure relates to a container lid and a method for manufacturing the same, and as the container lid made of a paper material configured to cover a paper cup with a curling part formed on the upper end thereof, the container lid includes a body which has a sidewall which has a hollow formed therein, and an adhesive part which is formed by bending the lower end of the sidewall inward, and a cover which has a flat plate which is disposed in the hollow of the sidewall, and an overlapping part which is formed by bending the rim of the flat plate downward, and inserted between the sidewall and the adhesive part to adhere to the adhesive part, and the container lid includes a locking projection in which a middle portion is formed to protrude inward relatively with respect to the upper end and the lower end of the inner circumference of the adhesive part of the body by pressing the upper end and the lower end thereof outward to reduce the thicknesses of the upper end and the lower end thereof and to keep the thickness of the middle portion as it is, thereby covering an opening of the paper cup simply and stably.

Description

Container lid and its manufacturing method

This case relates to a container lid and its manufacturing method, and more specifically to a container lid and its manufacturing method. The container lid simply and firmly covers an opening of a paper cup, thereby stably storing and storing the contents.

Generally, many disposable products are manufactured while pursuing convenience in life along with industrial development.

For example, paper products that have been widely used before, such as paper cups, containers, and plates.

However, paper products not only have difficulties in manufacturing the above-mentioned products due to the material characteristics of paper, but also have limitations in product diversification.

Specifically, paper cups or paper containers are manufactured and used according to various types, but there is a problem that paper lids suitable for the above products cannot be manufactured, making it difficult to cover if food is stored in paper cups, paper containers, or the like Opening to block outside air.

In addition, the disposable paper cup is formed to have a structure in which a body is formed by rolling a cardboard, and the outer periphery of the opening above the body is structurally strengthened so that the drinking water can accumulate in one place without spreading. A curling part that prevents the user's mouth from being cut, and laminating a separate bottom paper on the bottom to form a closed part.

Such paper cups are not only indispensably used in daily life, but also used in outdoor activities and vending machines, and they have relatively low manufacturing costs, easy recycling or disposal after use, and even when discarded. No need to worry about the advantages of environmental pollution.

However, the paper cup has a structure in which the top opening is always open, so that if the user moves in a state where the paper cup contains the contents, the contents will shake or overflow and thus soil the surrounding environment, and specifically, if The contents are very hot, which will cause safety accidents.

In addition, if foreign substances are mixed with the reserved and stored contents and thus become unhygienic, the reserved and stored contents become easily cooled or heated according to the nature of the contents, making it impossible to maintain the original beverage Nature, if long-term storage is required, it is impossible to prevent the preservation and deterioration of the stored contents, and similar problems.

In the conventional knowledge, although Korean Utility Model Application Publication No. 1999-0015893 "Paper Material Container Lid", Korean Patent Application Publication No. 2003-0064199 "Paper Cup with Lid", Korean Patent Application Publication No. 2004-0000285 "Disposable paper container for cup lid combined use and its manufacturing method", Korean Patent Application Publication No. 2011-0030175 "Paper Lid Manufacturing Method and Equipment", and Japanese Patent Application Publication No. 2006- No. 248530 "Paper Lid for Paper Container", but the above problems have not been improved.

The present disclosure intends to solve the above related technical problems, and one purpose of the present disclosure is to provide a container cover and a manufacturing method thereof. The container cover simply and firmly covers an opening of a paper cup, thereby stably preserving and storing the contents.

As a way to achieve the above purpose,

The present disclosure provides a container lid, in which, like a container lid made of a paper material, it is arranged to cover a paper cup and the paper cup has a crimping part formed at the upper end. The container lid includes an integral body and a lid, and the body has a side wall And a bonding part, the side wall is formed in a cylindrical shape with a cavity formed in one of the parts, and the part is formed by bending the lower end of the side wall inwardly, the cover part has a flat plate and an overlapping part, and the flat plate is set to be closed In the cavity of the side wall, the overlapping member is inserted between the side wall and the bonding member in a state where the edge of the flat plate is bent downward, and then to the bonding member, and the container lid includes a fixed locking protrusion, and a middle portion is formed as Push the upper and lower ends of the inner periphery of the adhering part of the body outwards, and protrude inward relative to the upper and lower ends to reduce the thickness of the upper and lower ends and keep the middle part outside the body The thickness when the periphery remains flat.

In this case, the locking protrusions may be continuously formed along the inner periphery of the adhering part of the body, or a plurality of locking protrusions may be formed at a plurality of regular intervals.

In this case, two or more locking protrusions may be vertically formed at a plurality of regular intervals.

In this case, the locking protrusion may be formed parallel to the flat plate, or formed obliquely with respect to the flat plate.

In this case, the locking protrusion may have a cross-sectional structure selected from any one of semicircular, polygonal, and horn shapes.

In this case, the plate may be formed with a beverage discharge hole and a beverage cooling member protruding upward from one side of the beverage discharge hole.

In this case, the beverage cooling part may be formed to have a number of overlapping papers, or to have a hollow body in the beverage cooling part.

In addition, the present disclosure provides a method for manufacturing a container lid. The method includes (a) preparing a side wall and a flat plate by cutting a paper original plate; (b) bonding the two side ends of the side wall to each other by rolling the side wall to form a cavity In it; (c) Fold the edge of the flat plate downward to form an overlapping part; (d) Set the flat plate on the inner side of the side wall; (e) Fold the lower end of the side wall inward to form a bonding part, and make the bonding part face The overlapping part of the flat plate; and (f) by protruding from the inner periphery of the adhering part of the side wall relative to a part corresponding to a notch to form a fixed locking convex part, and at the same time, a notch will be formed at a waist One of the push plates is arranged to be in close contact with the inner periphery of the adhering part of the side wall and pushes the finished push plate outward, so as to connect the adhering part of the side wall and the overlapping part of the flat plate to each other.

The manufacturing method of the container lid may further include preheating a part to become a bonding part before folding the lower end of the side wall inward in step (e).

According to the present disclosure, by forming the locking protrusion protruding inward from the lower part of the paper container lid, the locking protrusion can be locked and fixed to the curling part of the paper cup when the container lid is connected to the paper cup, so as to prevent the container The lid is separated to prevent the contents from overflowing or overflowing during the use of the paper cup.

In addition, by forming the beverage cooling member to protrude from one side of the beverage outlet hole of the container lid, the hot beverage discharged through the beverage outlet hole can be cooled while moving along the beverage cooling member and then provided to the user, thereby preventing burns. The risk is minimized.

In the following description, specific embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, so that those skilled in the present disclosure can easily implement them. However, the present disclosure can be implemented in various different types, and is not limited to the specific embodiments described herein. In addition, in order to clearly describe the present disclosure in the drawings, parts irrelevant to the description will be omitted, and similar parts are represented by similar reference numerals throughout the specification.

Figure 1 is a perspective view of a container lid according to a preferred embodiment of the present disclosure, Figure 2 is a cross-sectional view taken along the line AA of Figure 1, and Figure 3 is a diagram showing Figure 2 A schematic diagram of the illustrated container cap in use state, Figures 4 to 9 are schematic diagrams illustrating a plurality of changes of a fixed locking protrusion of the container cap illustrated in Figure 2, and Figure 10 The figure shows a schematic view of a modification of the container lid shown in Figure 2.

Please refer to FIGS. 1 to 10, a container lid 100 according to a preferred embodiment of the present disclosure includes an integrated body 110 and a lid 120.

The body 110 is made of a paper material and includes a side wall 111 and a bonding member 112.

The side wall 111 has a substantially cylindrical shape and the shape has a cavity formed therein, and more specifically, has a cylindrical shape and the cylindrical shape has a diameter that decreases downward. However, the shape of the side wall 111 is not limited to this, and of course, the side wall 111 can also have a cylindrical shape or a polygonal column shape with the same vertical diameter according to the cross-sectional structure of the paper cup 10.

Then the member 112 is formed by bending the lower end of the side wall 111 inward.

A locking protrusion 130 is formed to protrude from the inner periphery of the bonding member 112. The locking protrusion 130 is arranged to be spaced downward from a flat plate 121 by a predetermined interval, and the predetermined interval is preferably the thickness of a curling part 10 a of the paper cup 10.

Therefore, if the container lid 100 is temporarily connected to the upper end of the paper cup 10 and then pressed downward, the lower end of the side wall 111 expands and at the same time the locking projection 130 slides with respect to the curling member 10a of the paper cup 10, and if the locking The convex portion 130 further slides continuously to reach the lower end of the crimping member 10a, the crimping member 10a is locked and fixed between the flat plate 121 and the locking protrusion 130, and the enlarged lower end of the side wall 111 returns to the original state.

The locking protrusion 130 is formed by pushing the upper end and the lower end of the inner periphery of the bonding member 112 outward. That is, if the upper and lower ends of the inner periphery of the connecting member 112 are pushed outward, the upper and lower ends of the connecting member 112 and the thickness of an overlapping member 122 will be reduced by a pushing force, and the middle portion The thickness is kept as it is, so that the middle portion can have an outer shape that protrudes inward relative to the upper end and the lower end of the bonding member 112 to serve as the locking protrusion 130.

The cover 120 is made of the same paper as the body 110 and includes a flat plate 121 and an overlapping part 122.

The flat plate 121 is disposed inside the side wall 111 to block the cavity. The plate 121 is formed with a beverage outlet hole 121a and a vent hole 121b. The beverage discharge hole 121a is used to allow the user to drink the beverage when the container lid 100 is connected to the paper cup 10, and the vent hole 121b allows air to flow into the container lid 100 so that the beverage can be easily discharged.

The overlapping member 122 is formed by bending the edge of the flat plate 121 downward. The overlapping member 122 is inserted between the side wall 111 of the body 110 and the bonding member 112 to be bonded to the bonding member 112.

The locking protrusion 130 can be provided in various types.

For example, although the locking protrusion 130 preferably has a semicircular cross-sectional structure (see Figure 2) and the curling member 10a of the paper cup 10 slides easily, the locking protrusion 130 may also have a structure as shown in Figure 4 The illustrated cross-sectional structure of an upwardly curved horn (see Figure 4(a)) or a rectangular polygon (see Figure 4(b)) is shown to further increase the connection force.

Furthermore, as shown in FIG. 5, two or more locking protrusions 130 may be vertically formed at regular intervals. In this case, the curling member 10a of the paper cup 10 can be fixed by being locked between the flat plate 121 and the locking protrusion 131, or between the two locking protrusions 130 and 131.

In addition, the locking protrusions 130 may be continuously formed along the inner periphery of the adhering member 112 of the body 110 (see FIG. 2), or a plurality of locking protrusions 130 may be formed at regular intervals (see FIG. 6).

In addition, the locking protrusion 130 may be formed parallel to the flat plate 121 (see FIG. 2) or may be formed to be inclined with respect to the flat plate 121 (see FIG. 8), and even when the locking protrusion 130 is formed to be inclined, The natural locking protrusion 130 may have a continuous or intermittent appearance, as shown in FIGS. 8 and 9.

Meanwhile, the flat plate 121 of the cover 120 can form a beverage cooling component 140.

The beverage cooling member 140 is formed to protrude upward from one side of the beverage discharge hole 121a. The beverage cooling component 140 functions to cool the hot beverage discharged through the beverage discharge hole 121a.

That is, if the user drinks a hot beverage while directly touching his/her mouth with the beverage discharge hole 121a, the heat of the beverage is directly transferred to the user, making the user vulnerable to burns. On the other hand, if the beverage cooling part 140 is formed on the flat plate 121 as described in this disclosure, the hot beverage discharged through the beverage discharge hole 121a can move along the beverage cooling part 140 by contacting the beverage cooling part 140 and The external air is cooled and then provided to the user, thereby minimizing the risk of burns.

As shown in Figure 10, the beverage cooling component 140 preferably has an arc shape, so that the hot beverage can contact the beverage cooling component 140 and the outside air for as long as possible, and can also have many papers, Or it has a hollow body S formed in one of them to maximize the cooling effect.

The structure of the container lid according to the preferred embodiment of the present disclosure has been described above. In the following description, a method for manufacturing a container cap according to a preferred embodiment of the present disclosure will be described.

First, the side wall 111 and the flat plate 121 are prepared by cutting a paper original board into a predetermined shape. In this case, the side wall 111 may have a trapezoidal shape in an expanded state, and the flat plate 121 may be formed in a circular shape.

Then, the side wall 111 is rolled into a cylindrical shape so that the two side ends of the side wall 111 are connected to each other, and a cavity is formed inside the side wall 111.

Then, by folding the edge of the flat plate 121 downward, the overlapping member 122 is formed.

Next, the flat plate 121 is installed inside the side wall 111.

Subsequently, the bonding member 112 is formed by folding the lower end of the side wall 111 toward the inside, and the bonding member 112 faces the overlapping member 122 of the flat plate 121. That is, the overlapping member 122 is inserted between the side wall 111 and the bonding member 112.

Finally, if a push plate (not shown) with a notch formed in a waist is placed in close contact with the inner periphery of the joining member 112, and then the push plate is pushed outward, the joining member 112 and the overlapping member 122 are mutually Then, and at the same time, the locking protrusion 130 corresponding to the recess of the push plate is formed to protrude from the inner periphery of the bonding member 112. In this case, if the push plate is pushed outward and simultaneously rotates along the inner periphery of the adhering member 112, the locking protrusion 130 has a continuous appearance, and if the push plate is pushed outward and simultaneously along the adhering member 112 The inner periphery of 112 moves at a plurality of regular intervals, and the locking protrusion 130 has an intermittent appearance.

Meanwhile, when the bonding member 112 and the overlapping member 122 are bonded to each other, a bonding surface, or the sidewall 111 and the flat plate 121 including the bonding surface may all be coated with a Low Density Polyethylene (LPDE) film. As described above, if the low-density polyethylene film is coated, the low-density polyethylene film can be pressed by one of the push plates to melt on the bonding surface to provide a predetermined adhesive force. However, although this article only describes, for example, low-density polyethylene film used as a coating film, it should be understood that the material of the coating film is not limited to low-density polyethylene, and films of other known materials can also be used.

The preferred embodiments of the present disclosure have been described above in detail with reference to the drawings. The description of this disclosure is only for explanation, and those familiar with the technology of this disclosure will understand that this disclosure can be easily changed into other specific types without changing the technical spirit or essential characteristics of this disclosure.

Therefore, the scope of this disclosure is defined by the scope of patent application described below, rather than defined by the detailed description above, and should be understood as all changes or alterations in the meaning, scope, and equivalent concepts derived from the scope of patent application. Included in the scope of this disclosure.

10: paper cup 10a: Crimping parts 100: container lid 110: body 111: sidewall 112: Then parts 120: cover 121: Tablet 121a: Drink discharge hole 121b: vent 122: overlapping parts 130,131: fixed lock convex 140: Beverage cooling parts S: hollow body

Figure 1 is a perspective view of a container lid according to a preferred embodiment of the present disclosure. Figure 2 is a cross-sectional view taken along the line A-A of Figure 1. Fig. 3 is a schematic diagram showing the state of use of the container lid shown in Fig. 2. Figures 4 to 9 are schematic diagrams illustrating a plurality of changes of a locking protrusion of the container lid shown in Figure 2; Fig. 10 is a schematic diagram showing a modification of the container lid shown in Fig. 2.

no

10: paper cup

10a: Crimping parts

110: body

111: sidewall

112: Then parts

120: cover

121: Tablet

121a: Drink discharge hole

121b: vent

122: overlapping parts

130: fixed lock convex

Claims (9)

A container lid, Like a container lid made of a paper material, it is arranged to cover a paper cup and the paper cup has a curling part formed at the upper end, the container lid includes: One body, having a side wall and a bonding member formed in a cylindrical shape and having a cavity formed therein, the bonding member being formed by bending the lower end of the side wall inward; and A cover having a flat plate and an overlapping part, the flat plate is arranged to close the cavity of the side wall, and the overlapping part is in a state where the edge of the flat plate is bent downward and inserted between the side wall and the joining part , Then to the bonding part, The container cover includes a fixed locking convex portion, and one of the middle portions is formed as the upper end and the lower end of the inner periphery of the bonding member of the body by pushing outwards, and the upper end and the lower end are relatively opposite Protruding inward to reduce the thickness of the upper end and the lower end, and to maintain the thickness of the middle portion in a state where the outer periphery of the body remains flat. Such as the container lid of claim 1, The locking protrusions are continuously formed along the inner periphery of the connecting member of the body, or a plurality of locking protrusions are formed at a plurality of regular intervals. Such as the container lid of claim 1, Among them, two or more locking protrusions are vertically formed at a plurality of regular intervals. Such as the container lid of claim 1, The locking protrusion is formed parallel to the flat plate, or is formed obliquely with respect to the flat plate. Such as the container lid of claim 1, The locking protrusion has a cross-sectional structure selected from any one of semicircular, polygonal, and horn shapes. Such as the container lid of claim 1, The flat plate is formed with a beverage discharge hole and a beverage cooling component protruding upward from one side of the beverage discharge hole. Such as the container lid of claim 6, Wherein the beverage cooling part is formed with a number of overlapping papers, or has a hollow body in the beverage cooling part. A method for manufacturing a container cover, the method comprising: (a) Prepare a side wall and a flat plate by cutting a paper original board; (b) By rolling the side wall into a cylindrical shape, the two side ends of the side wall are connected to each other, so that a cavity is formed therein; (c) An overlapping part is formed by folding down the edge of the plate; (d) Set the plate on the inner side of the side wall; (e) A bonding member is formed by folding the lower end of the side wall inward, and the bonding member faces the overlapping member of the plate; and (f) A fixed locking convex portion is formed by protruding a portion corresponding to a recess from the inner periphery of the adhesive member of the side wall, and simultaneously pushing one of the recesses formed at a waist The plate is arranged to be in close contact with the inner periphery of the joining part of the side wall and pushing the completed push plate outwards, so as to join the joining part of the side wall and the overlapping part of the flat plate to each other. Such as the method of claim 8, further comprising preheating a part to become the bonding part before folding the lower end of the side wall inward in the step (e).

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