JPH11278456A - Double cup - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily separate a plastic inner cup and an outer cup mainly made of paper for recycling. SOLUTION: The double cup 1 comprises a plastic inner cup 2 and an outer cup 4 mainly made of paper which are integrated at an upper end flange 3. A peripheral wall 7 of the outer cup 4 is formed by cylindrically bending a flat plate material and fixing at an overlap 10. A protruding piece 15 and a cut 16 are provided at a site toward an upper end of the overlap 10. When the protruding piece 15 is held and the overlap 10 is to be peeled off, a tear occurs on the outer cup 4 from the cut 16 toward the upper end flange 3. Thus the outer cup 4 can be easily separated from the inner cup.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double cup in which an inner cup made of plastic and an outer cup mainly made of paper are integrally combined, and in particular, to facilitate separation of the inner cup and the outer cup. It relates to a double cup that facilitates recycling.

[0002]

2. Description of the Related Art Conventionally, as a container for storing sake or the like, a double cup in which a plastic inner cup and an outer cup mainly made of paper are integrally combined is generally known.

[0003]

By the way, as a method of disposing after using such a double cup, a method of incineration has conventionally been adopted, but recently, incineration has been performed due to problems such as generation of dioxin. In some cases, it is not possible to do so, and even if it can be incinerated, there is a problem of an increase in the amount of refuse, and it is required to separate and recycle the outer cup and the inner cup.

[0004] Here, when recycling the double cups, it is conceivable that the connection strength between the outer cup and the inner cup is weakened to facilitate separation. It is not practical because the strength of the product as a cup decreases.

The present invention has been made in view of the above circumstances, and provides a double cup capable of easily separating an outer cup and an inner cup during recycling while ensuring sufficient product strength. With the goal.

It is another object of the present invention to provide a double cup which can easily produce an outer cup having a break trigger for facilitating the tearing of the outer cup.

Another object of the present invention is to make it possible to obscure the existence of a rupture trigger, to obtain a sufficient function at the time of recycling, and to change the design of an existing outer cup making machine in most cases. There is no double cup to offer.

Another object of the present invention is to provide a double cup which can easily separate an outer cup from an inner cup even when a child or the like disposes of the used double cup. is there.

It is another object of the present invention to provide a double cup that can more easily break the outer cup.

Still another object of the present invention is to provide a double cup in which the installation position of the break trigger can be freely selected.

[0011]

In order to achieve the above object, the present invention provides a plastic inner cup having an upper end flange, and a crimping portion bent from an outer peripheral edge of the upper end flange to a lower surface side of the upper end flange. And an outer cup made of paper, the main body being integrated with the inner cup, the upper end flange being externally fitted to the inner cup and being compressed and compressed between the upper end flange portion and the compression and contraction portion, and a peripheral wall portion of the outer cup is provided. In a double cup formed by bending a flat plate material into a tubular shape and overlapping both ends thereof, and fixing the overlapped portion, on the peripheral wall portion of the outer cup, tearing is caused toward the upper end flange. Characterized in that a break trigger portion is provided.
Then, after using the double cup, the outer cup is torn by applying a certain force or more to the tear trigger, and the outer cup and the inner cup are easily separated by breaking the outer cup with this tear as a trigger. It becomes possible. Also, as long as you do not apply a certain amount of force,
Since it has the same strength as the outer cup having no break trigger, there is no possibility that the product strength of the double cup is reduced.

[0012] The present invention is also characterized in that the break trigger portion is formed in the overlapping portion of the outer cup peripheral wall portion. And thereby, it becomes possible to manufacture easily the outer cup which has a break trigger part.

The present invention is also characterized in that the break trigger portion is formed by a non-fixed portion provided on at least a part of the edge of the overlapping portion. This makes it possible to make the presence of the breaking trigger less noticeable, and at the time of recycling, it is possible to obtain a sufficient function as the breaking trigger, and it is necessary to change the design of the existing outer cup making machine. There is almost no.

The present invention is also characterized in that the break trigger portion is formed by a protruding piece or cut provided at a position near the upper end of the edge of the overlapping portion. This makes it possible to easily confirm the presence of the break trigger portion from the outer surface of the outer cup, so that even the child or the like can easily separate the outer cup from the inner cup.

According to the present invention, the break trigger portion is formed by at least one intermittent cut provided at a predetermined length from a portion near the upper end of the edge of the overlapping portion toward the upper end flange. Features. Thus, even when the outer cup is made of a very tough material, the strength can be adjusted by the way of the intermittent cut, and the optimum tear strength can be easily obtained. In addition, since the intermittent cut is provided toward the upper end flange, if the outer cup is torn along the intermittent cut, the upper end flange will always be torn, thereby making it easier to separate the outer cup from the inner cup. Becomes possible.

According to the present invention, the break trigger portion may include a non-fixed portion provided on at least a part of an edge of the overlapping portion, a projecting piece provided on a portion near an upper end of the edge of the overlapping portion, and a overlapping portion. A notch provided at a position near the upper end of the edge,
Alternatively, at least one intermittent cut provided at a predetermined length from a portion near the upper end of the edge of the overlapping portion toward the upper end flange is formed by combining a plurality of pieces. Thus, the outer cup can be more easily broken.

According to the present invention, the outer cup comprises a paper main body having an outer surface printed thereon, an outer laminate material disposed on the outer surface of the main body, and an inner laminate material disposed on the inner surface of the main body. The break trigger portion is formed by printing at least a part of the vicinity of the edge of the overlapped portion on the main body with an ink having an easy peeling property with the outer surface laminate material. By applying a certain force or more to the overlapping portion, peeling occurs between the outer laminate material and the main body, and the outer cup can be easily broken from the peeled portion. In addition, in the case of this method, there is no need to change the cutting die of the outer cup, so that it is possible to easily cope with existing equipment.

The present invention is also characterized in that the break trigger portion is formed on a main body portion located inside the overlapping portion. And by this, by applying a certain force or more to the overlapping portion, the outer laminate material is peeled off from the main body located inside the overlapping portion, and the peeling of the peeled outer laminate material is only caused, and the adhesion of the overlapping portion is prevented. It can be released. For this reason, the outer cup can be easily broken.

According to the present invention, the outer cup comprises a paper main body having an outer surface printed thereon, an outer laminate material disposed on the outer surface of the main body, and an inner laminate material disposed on the inner surface of the main body. Then, the tear trigger portion is formed by an easily peelable adhesive layer disposed at least at a part near the edge of the overlapping portion,
This easily peelable adhesive layer is formed between the main body located outside the overlapped portion and the inner laminate material, or between the inner laminate material located outside the overlapped portion and the outer laminate material located inside the overlapped portion. Characterized in that they are arranged on at least one of them. Thus, by applying a certain force or more to the overlapping portion, peeling occurs at the portion of the easily peelable adhesive layer, and by breaking the outer cup from this portion, the outer cup can be easily broken.

The present invention is also characterized in that the easily peelable adhesive layer is made of an ink having easy peelability. This makes it possible to easily arrange the easily peelable adhesive layer by using equipment for printing on the outer surface of the main body.

The present invention is also characterized in that the break trigger portion is formed by an intermittent cut provided in a portion other than the overlapping portion of the outer cup peripheral edge portion. This makes it possible to freely select the installation position of the break trigger portion.

The present invention is further characterized in that the intermittent cut is made non-linear and the upper end thereof is directed obliquely upward toward the upper end flange. This reduces the initial force required to break the outer cup, and if the outer cup is broken along the intermittent break, the upper end flange always breaks, thereby easily separating the outer cup from the inner cup. It is possible to do.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a double cup according to a first embodiment of the present invention.
The inner cup 2 includes a plastic inner cup 2 having a top end flange 3 and made of, for example, PET or the like, and an outer cup 4 whose main body is made of paper and is externally mounted on the inner cup 2.
Has a crimping portion 5 that bends from the outer peripheral edge of the upper end flange portion 3 to the lower surface side of the upper end flange portion 3, and the outer cup 4 has an upper end flange 6 at the upper end portion. The two cups 2 and 4 are integrated by crimping the upper flange 6 of the outer cup 4 between the upper flange 3 of the inner cup 2 and the crimping portion 5.

As shown in FIG. 3, the outer cup 4 is composed of a peripheral wall 7 integrally having an upper end flange 6 and an inverted dish-shaped bottom wall 8, and the peripheral wall 7 is The peripheral wall 7 and the bottom wall are formed by inserting the peripheral wall of the bottom wall 8 from above and fixing the peripheral wall 7 between the folded portion 9 and the peripheral wall 7 at the lower end. 8 are integrated.

As shown in FIGS. 1, 4 and 5, the peripheral wall portion 7 is formed by bending a flat plate into a cylindrical shape, overlapping both ends thereof, and fixing the overlapping portion 10.
The overlapping portion 10 is provided with a break trigger 11 for causing the peripheral wall 7 to break toward the upper end flange 6.

That is, as shown in FIG. 5, the peripheral wall portion 7 includes a paper main body 12 having an outer surface printed thereon, and a polyethylene outer laminate material 13 disposed on the outer surface of the main body 12, for example. And a three-layer structure of an inner laminate material 14 made of, for example, polyethylene disposed on the inner surface of the main body 12.
By applying heat between the inner portion 10b and the inner portion 10b, the inner laminate material 14 of the outer portion 10a and the outer laminate material 14 of the inner portion 10b are fused and the overlapped portion 10 is fixed. .

The breaking trigger 11 is shown in FIG.
As shown in FIG. 4 and FIG. 5, it is set at a position slightly lower than the upper end of the overlapping portion 10, and the break trigger portion 11 is a protruding piece 1 protruding from the edge of the outer portion 10a.
5 and two cuts 16 cut diagonally upward from the upper and lower end positions of the projecting piece 15.
Then, as shown in FIG. 5, the tear trigger portion 11 easily breaks from the position of each cut 16 toward the upper end flange 6 by raising the protruding piece 15 and pulling it toward the outer diameter side of the outer cup 4. It can be made to be.

FIG. 2 shows a state in which the upper end of the inner cup 2 is open. However, when contents such as sake are stored, the upper surface of the upper end flange 3 of the inner cup 2 A lid (not shown) is detachably welded to form a sealed container.

Next, the operation of the present embodiment will be described. When separating the inner cup 2 and the outer cup 4, first, the protruding piece 15 is hooked and raised with the tip of a fingernail, and the raised protruding piece 15 is gripped and pulled toward the outer diameter side of the outer cup 4. Then, the outer cup 4 is torn from the position of the cut 16. At this time, since the protruding piece 15 is provided slightly below the upper end of the outer cup 4 and the cut 16 is cut obliquely upward, the outer cup 4 is broken toward the upper end flange 6. , One portion of the donut disk-shaped upper flange 6 is cut. For this reason, the inner cup 2 and the outer cup 4 can be easily separated by pulling out the upper end flange 6 from between the upper end flange portion 3 and the crimping portion 5 with the cut portion as a trigger.

In the first embodiment,
The case where the cuts 16 are provided at the upper and lower ends of the projecting piece 15 has been described.
Are located near the upper end of the outer cup 4, and it has been confirmed by experiments of the present inventors that the tearing of the outer cup 4 almost certainly occurs toward the upper end flange 6.
Therefore, the cut 16 may be omitted as necessary. Conversely, the protrusion 15 may be omitted. In this case, the portion sandwiched between both cuts 16 of the outer portion 10a is the inner portion 1
0b, but the vertical dimension between both cuts 16 is small, so the tip of a fingernail can be hooked on this part and scraped up several times to peel off from the inner part 10b relatively easily. Can be done. And if it can be peeled off, this part can be made to function similarly to the projecting piece 15, so that the projecting piece 15 can be omitted as necessary.

FIGS. 6 and 7 show a second embodiment of the present invention, wherein a break trigger 21 is used in place of the break trigger 11 in the first embodiment. is there.

That is, the break trigger 21 is located at a position slightly lower than the upper end of the overlapping portion 10 like the break trigger 11 in the first embodiment. As shown in FIG. 6, a non-fixed portion 22 is provided at a part of the edge of the overlapping portion 10. That is, the outer portion 10a
And the inner portion 10b are left in a state where only the non-fixed portion 22 is not welded. The break trigger portion 21 applies a force to the pressing position 23 shown in FIG. 6 in the direction indicated by the arrow F in FIG. 7 to form a gap G between the outer portion 10a and the inner portion 10b. The outer cup 4 can be easily torn by putting the fingertip into the G to cause the non-fixed portion 22. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

However, in the case of the tear trigger portion 21, the existence thereof can be made inconspicuous, and the careless tearing of the outer cup 4 can be prevented. Further, since there is almost no need to change the design of the existing outer cup making machine, it can be easily applied to existing facilities.

Incidentally, in the second embodiment,
Although the case where the non-fixed portion 22 is formed only on a part of the edge of the overlapping portion 10 has been described, the non-fixed portion 22 may be formed to pass vertically through the edge of the overlapping portion 10. In this case, existing equipment can be applied immediately.

FIG. 8 shows a third embodiment of the present invention, in which a breaking trigger 31 is used instead of the breaking trigger 11 in the first embodiment.

That is, the break trigger portion 31 is set at a position slightly lower than the upper end of the overlapping portion 10 like the break trigger portion 11 in the first embodiment. As shown in FIG. 8, for example, two intermittent cuts 32 extend obliquely from the edge of the overlapping portion 10 toward the upper end flange 6. In other respects, the configuration is the same as that of the above embodiment, and the operation is the same.

The same effect as in the first embodiment can be expected also in the case of the break trigger portion 31.

FIG. 9 shows a fourth embodiment of the present invention, in which a break trigger 41 is used in place of the break trigger 11 in the first embodiment.

That is, the break trigger 41 is located slightly below the upper end of the outer cup 4 similarly to the break trigger 11 in the first embodiment. As shown in FIG. 9, unlike the break trigger portion 11, the outer cup 4 is constituted by intermittent cuts 42 provided at portions other than the overlapping portion 10 of the peripheral wall portion 7. As shown in FIG. 9, the intermittent break 42 is formed, for example, in a horizontal U
It is formed in a character shape, and its upper end extends obliquely upward toward the upper end flange 6. In other respects, the configuration is the same as that of the first embodiment.
The operation is the same.

However, in the case of the break trigger portion 41, the position is not limited to the position of the overlapping portion 10, so that the break trigger portion 41 is provided at an optimum position according to the purpose of use of the double cup 1. be able to.

FIGS. 10 and 11 show a fifth embodiment of the present invention, in which a break trigger 51 is provided instead of the break trigger 11 in the first embodiment. is there.

That is, the break trigger portion 51 is formed in the overlapping portion 10 similarly to the break trigger portion 11 in the first embodiment, but unlike the break trigger portion 11, the break trigger portion 51 is formed. It is provided over almost the entire length, and moreover, the tear trigger 51
It is formed of printing ink 52 applied to the outer surface of the main body 12.

The outer cup 4 provided with the break trigger 51 is provided with the main body 1 in the same manner as in the first embodiment.
2 and an outer laminate 13 and an inner laminate material 14, and the outer surface of the
As shown in the figure, predetermined printing is performed using the inks 52 and 53.

The ink 53 is applied to the outer laminate 13
Although normal ink with good adhesion with is used,
As the ink 52, a special ink is used in which silicone or the like is added to the ink to ensure easy peeling from the outer surface laminate material 13.
As shown in FIG. 11 and FIG. 11, only the portion corresponding to the inner portion 10b of the overlapping portion 10 is used. Then, by applying a force in the direction indicated by arrow F in FIG. 10, the outer laminate 13 is separated from the main body 12 of the inner portion 10b as shown in FIG. Is broken, the fixation of the overlapping portion 10 can be released. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

However, since the break trigger 51 can be formed only by printing the main body 12 using the special ink 52, there is no need to change the cutting die of the outer cup 4 and there is no need to change the existing die. The equipment can easily respond.

FIGS. 12 and 13 show a sixth embodiment of the present invention, in which a break trigger 61 is provided instead of the break trigger 51 in the fifth embodiment. is there.

That is, as shown in FIGS. 12 and 13, the break trigger portion 61 is formed between the main body 12 and the inner laminate material 14 in the outer portion 10 a of the overlapping portion 10.
The easily peelable adhesive layer 62 is formed of, for example, the special ink 52 in the fifth embodiment, and is easily peelable from the inner laminate material 14. Is obtained. Then, as shown in FIG. 13, the tip of the fingernail is hooked on the edge of the overlapped portion 10 and raked up several times, so that the inner laminate material 14 of the outer portion 10 a and the easily peelable adhesive layer 6 are removed.
2 and the inner laminate 14 of the outer portion 10a is broken in this state, so that the overlapping portion 1
0 can be released. In other respects, the configuration is the same as that of the fifth embodiment, and the operation is the same.

However, since the easily peelable adhesive layer 62 is provided on the outer portion 10a of the overlapping portion 10, it is possible to relatively easily cause peeling by applying an external force to the edge of the outer portion 10a. And the operation for breaking the outer cup 4 is easy.

FIGS. 14 and 15 show a seventh embodiment of the present invention, in which a break trigger 71 is provided instead of the break trigger 61 in the sixth embodiment. is there.

That is, as shown in FIGS. 14 and 15, the break trigger portion 71 is disposed between the inner laminate material 14 of the outer portion 10a and the outer laminate material 13 of the inner portion 10b in the overlapping portion 10. It is composed of an easily peelable adhesive layer 62. Then, the tearing trigger portion 71 is hooked on the edge of the overlapping portion 10 with the tip of a fingernail and is raked up several times, so that the tearing trigger portion 71 is easily separated from the inner laminate material 14 of the outer portion 10a as shown in FIG. Peeling occurs between the peelable adhesive layer 62 or conversely, between the outer laminate material 13 of the inner portion 10b and the easily peelable adhesive layer 62, whereby the adhesion of the overlapped portion 10 can be released. In other respects, the configuration is the same as that of the sixth embodiment, and the operation is the same.

However, since the easily peelable adhesive layer 62 is provided between the outer portion 10a and the inner portion 10b of the overlapping portion 10, the easily peelable adhesive layer 62 is removed after the die removal of the outer cup 4 is completed. Can be provided. For this reason, it can be applied relatively easily to existing equipment.

In the fifth to seventh embodiments, the breaking triggers 51, 61, 7
1 has been described over substantially the entire length of the overlapping portion 10, but, for example, like the non-fixed portion 22 in FIG.
You may make it provide in the overlapping part 10 partially.

Further, the present invention is not limited to the above embodiments, and for example, the structures in the above embodiments may be appropriately combined and used.

[0054]

As described above, according to the present invention, since the peripheral wall portion of the outer cup is provided with a break trigger portion for causing a tear toward the upper end flange, the breakage occurs after the double cup is used. The outer cup is torn by applying a certain force or more to the trigger portion, and the outer cup and the inner cup can be easily separated from each other by breaking the outer cup in response to the tear. In addition, the breaking trigger portion has the same strength as the outer cup having no breaking trigger portion unless a certain force or more is applied. Therefore, there is no possibility that the product strength as a double cup is reduced.

Further, in the present invention, since the break trigger portion is formed on the overlapping portion of the outer cup peripheral wall portion, the outer cup having the break trigger portion can be easily manufactured.

Further, in the present invention, since the break trigger portion is formed by the non-fixed portion provided at least at a part of the edge of the overlapping portion, the presence of the break trigger portion can be made inconspicuous. At the same time, at the time of recycling, a sufficient function as a breaking trigger can be obtained, and there is almost no need to redesign the existing outer cup making machine.

According to the present invention, the break trigger portion is formed by a projection or a notch provided near the upper end of the edge of the overlapped portion, so that the presence of the break trigger portion is determined by the outer surface of the outer cup. The outer cup and the inner cup can be easily separated even from children.

Also, in the present invention, the break trigger portion is formed by at least one intermittent break provided with a predetermined length from the portion near the upper end of the edge of the overlapping portion toward the upper end flange. Even if the outer cup is made of a very tough material, the strength can be adjusted by the way of the intermittent cut, and the optimum tear strength can be easily obtained. In addition, since the intermittent cut is provided toward the upper end flange, if the outer cup is broken along the intermittent cut, the upper end flange will necessarily be torn, thereby making it easier to separate the outer cup from the inner cup. Can be.

In the present invention, since the break trigger portion is formed by combining a plurality of non-fixed portions, projecting pieces, cuts or discontinuous cuts, the outer cup can be broken more easily.

According to the present invention, the outer cup comprises a main body made of paper having an outer surface printed thereon, an outer laminate material disposed on the outer surface of the main body, and an inner laminate material disposed on the inner surface of the main body. Since the break trigger portion is formed on at least a part of the vicinity of the edge of the overlapping portion by printing the main body with an ink having an easy peeling property with the outer surface laminate material, the overlapping portion is formed. By applying a certain force or more to the outer layer, peeling occurs between the outer laminate material and the main body, and the outer cup can be easily broken from the peeled portion. In addition, in the case of this method, there is no need to change the cutting die of the outer cup, so that existing equipment can be easily used.

According to the present invention, since the break trigger portion is formed on the main body portion located inside the overlapping portion, by applying a certain force or more to the overlapping portion, the inside of the overlapping portion can be formed. The outer laminate material is peeled off from the main body located at the position, and the peeling of the peeled outer laminate material can be released only by breaking the peeled outer laminate material. Therefore, the outer cup can be easily broken.

According to the present invention, the outer cup comprises a paper-made main body having an outer surface printed thereon, an outer laminate material disposed on the outer surface of the main body, and an inner laminate material disposed on the inner surface of the main body. Then, the tear trigger portion is formed by an easily peelable adhesive layer disposed at least at a part near the edge of the overlapping portion,
This easily peelable adhesive layer, between the body and the inner laminate material located outside the overlap portion, or between the inner laminate material located outside the overlap portion and the outer laminate material located inside the overlap portion Since it is arranged in at least one of the gaps, by applying a certain force or more to the overlapped portion, peeling occurs in the portion of the easily peelable adhesive layer, and by breaking the outer cup from this portion The outer cup can be easily broken.

In the present invention, since the easily peelable adhesive layer is made of ink having easy peelability, the easily peelable adhesive layer can be easily disposed by using equipment for printing on the outer surface of the main body. be able to.

In the present invention, the break trigger portion is formed by an intermittent break provided in a portion other than the overlapping portion of the outer cup peripheral wall portion, so that the installation position of the break trigger portion can be freely selected. be able to.

In the present invention, furthermore, since the intermittent cut is made non-linear and the upper end thereof is directed obliquely upward toward the upper end flange, the force required to initially break the outer cup is small. Also, if you break the outer cup along the intermittent break, the upper end flange will always be torn,
Thus, the outer cup and the inner cup can be easily separated.

[Brief description in the drawings]

FIG. 1 is an external configuration diagram illustrating a double cup according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is an enlarged view of a main part of FIG. 1;

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is a diagram corresponding to FIG. 4, showing a second embodiment of the present invention.

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6;

FIG. 8 is a diagram corresponding to FIG. 1, showing a third embodiment of the present invention.

FIG. 9 is a diagram corresponding to FIG. 1, showing a fourth embodiment of the present invention.

FIG. 10 is a diagram corresponding to FIG. 5, showing a fifth embodiment of the present invention.

FIG. 11 is a view showing a state in which peeling has occurred in an overlapped portion;
FIG.

FIG. 12 is a diagram corresponding to FIG. 5, showing a sixth embodiment of the present invention.

FIG. 13 is a view showing a state in which peeling has occurred in an overlapped portion.
FIG.

FIG. 14 is a diagram corresponding to FIG. 5, showing a seventh embodiment of the present invention.

FIG. 15 is a view showing a state in which peeling has occurred in an overlapping portion.
FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Double cup 2 Inner cup 3 Upper flange part 4 Outer cup 5 Squeezing part 6 Upper flange 7 Peripheral wall part 8 Bottom wall part 10 Overlapping part 10a Outer part 10b Inner part 11,21,31,41,51,61, 71 Break Trigger Part 12 Main Body 13 Outer Laminate Material 14 Inner Laminate Material 15 Protrusion 16 Notch 22 Non-Fixed Part 32,42 Intermittent Cut 52,53 Ink 62 Easy Peel Adhesive Layer

Claims (13)

[Claims] 1. An inner cup made of plastic having an upper flange portion, a crimping portion bent from an outer peripheral edge of the upper flange portion to a lower surface side of the upper flange portion, and an upper flange externally provided in the inner cup and having the upper flange portion. The outer cup made of paper has a main body that is pressed and squeezed between the squeezing portion and the inner cup and integrated with the inner cup, and the outer wall of the outer cup is formed by bending a flat plate into a cylindrical shape and stacking both ends thereof. A double cup formed by fixing an overlapping portion, wherein a break trigger portion for causing a tear toward the upper end flange is provided on a peripheral wall portion of the outer cup. cup. 2. The tearing hook portion is formed at a superposed portion of the outer cup peripheral wall portion.
Double cup as described. 3. The double cup according to claim 2, wherein the break trigger portion is formed by a non-fixed portion provided on at least a part of an edge of the overlapping portion. 4. The double cup according to claim 2, wherein the break trigger portion is formed by a protruding piece provided at a position near an upper end of an edge of the overlapping portion. 5. The double cup according to claim 2, wherein the break trigger portion is formed by a cut provided at a position near an upper end of an edge of the overlapping portion. 6. The break trigger portion is formed by at least one intermittent cut provided with a predetermined length from a portion near the upper end of the edge of the overlapping portion toward the upper end flange. 2. The double cup according to 2. 7. The breaking trigger portion includes a non-fixed portion provided on at least a part of an edge of the overlapping portion, a protruding piece provided on a portion near an upper end of the edge of the overlapping portion, and an upper end of the edge of the overlapping portion. And a plurality of at least one intermittent cut provided at a predetermined length from a portion near the upper end of the edge of the overlapping portion to the upper end flange. The double cup according to claim 2, wherein 8. An outer cup comprising: a main body made of paper having an outer surface printed thereon; an outer laminate material disposed on an outer surface of the main body;
An inner laminate material disposed on the inner surface of the main body, and the tear trigger portion is printed on the main body with ink having an easy peeling property with the outer laminate material on at least a part of a position near an edge of the overlapping portion. The double cup according to claim 2, wherein the double cup is formed by: 9. The double cup according to claim 8, wherein the break trigger portion is formed on a main body portion located inside the overlapping portion. 10. An outer cup comprising: a paper main body having an outer surface printed thereon; an outer laminate material disposed on an outer surface of the main body; and an inner laminate material disposed on an inner surface of the main body.
The break trigger portion is formed of an easily peelable adhesive layer disposed at least at a position near the edge of the overlapped portion, and the easily peelable adhesive layer is formed between the main body located outside the overlapped portion and the inner laminate material. 3. The device according to claim 2, wherein the at least one of the inner laminate and the outer laminate located inside the overlap portion and the inner laminate material located outside the overlap portion. Double cup. 11. The double cup according to claim 10, wherein the easily peelable adhesive layer is made of an ink having easy peelability. 12. The double cup according to claim 1, wherein the break trigger portion is formed by an intermittent cut provided in a portion other than the overlapping portion of the outer cup peripheral wall portion. 13. The double cup according to claim 12, wherein the intermittent cut is non-linear, and an upper end thereof is directed obliquely upward toward the upper end flange.