JP2011016574A - Beverage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beverage container which can improve the efficiency of tearing off a shrink wrap and the functionality as a cup.SOLUTION: The beverage container includes a container, an over cap, and a shrink wrap for covering both the container and the over cap in a state where the over cap is attached to the container. The shrink wrap has a picking part to be picked by a consumer. The beverage container further includes a concave part that is formed so as to bend from the top surface of the over cap to the inside of the over cap and engage with the container at an inner diameter side. The picking part and the concave part are arranged so that they overlap in an upper view.

Description

  The present invention relates to a beverage container having an overcap.

  Conventionally, the technique of patent document 1 is disclosed as a drink container provided with the overcap. In this gazette, a bottle cap is covered with an overcap that functions as a cup on a beverage container having a body, a mouth-and-neck part having a diameter reduced from the body, and a bottle cap that closes the opening of the mouth-and-neck part. It is what was attached as.

JP 2003-81302 A

  To distribute beverage containers with an overcap functioning as a cup to the general market as described in Patent Document 1, it is covered with a packaging material such as a shrink label from the viewpoint of hygiene management and prevention of falling off during transportation. There is a need to. However, when the shrink label is coated on the configuration of Patent Document 1, it is difficult to peel off the shrink label because the top surface of the overcap (the bottom surface outside the cup) is flat. Further, in Patent Document 1, since the overcap is attached to the bottle cap by an elastic force, it is necessary to form the overcap along the mouth and neck, and the capacity of the cup and the stability when the cup is placed (hereinafter, cup) It is difficult to secure the function.

  An object of this invention is to provide the drink container which improved the peeling property and cup function of the packaging material of a container in view of the problem of the above prior arts.

  In order to solve the above problems, in the beverage container of the present invention, a container having a shoulder and a mouth and neck formed by reducing the diameter from the trunk, and attached to cover the mouth and neck, A cylindrical portion extending downward from the peripheral edge of the top surface; a concave portion bent from the top surface toward the inner side of the cylindrical portion; and the inner periphery of the concave portion engaging the outer periphery of the mouth neck An overcap having a portion to be covered, and a packaging means (e.g., a tuck label, a shrink) that covers both the container and the overcap in a state where the overcap is attached to the container and includes a breaking means having a knob. The overcap is larger in diameter than the mouth / neck and smaller in diameter than the trunk, and from the top to the inside of the overcap. Bent formation In an inner diameter side and a concave portion that engages with the mouth neck periphery, it was decided to place the said and the knob recess to overlap in a top view.

  Among the above configurations, the cup function can be improved by making the top surface of the overcap have a large diameter. Further, by engaging the overcap and the beverage container by the recess formed on the top surface, a stable attachment state can be secured and the transportability can be improved. Moreover, the formation of sink marks can be suppressed by forming the recesses by bending. In addition, since the knob portion and the concave portion are arranged so as to overlap with each other when viewed from above, the user can easily pick the knob portion, and the packaging means can be easily peeled off.

1 is a perspective view illustrating a beverage container of Example 1. FIG. It is the container for drinks of the state which peeled off the shrink label of Example 1. 2 is a perspective view of an overcap according to Embodiment 1. FIG. 3 is a top view of the overcap of Example 1. FIG. 2 is a cross-sectional view of the overcap of Example 1 taken along the line AA. FIG. It is BB sectional drawing in the state which covered the overcap of Example 1. FIG. It is CC sectional drawing in the state which covered the overcap of Example 1. FIG. It is a figure showing the state which piled up the container for drinks of Example 1. FIG. In the overcap of a comparative example, it is a fragmentary sectional view showing the composition which made the nail | claw part for engagement with a bottle cap stand from the top | upper surface. It is a fragmentary sectional view showing other examples.

  FIG. 1 is a perspective view showing a beverage container of Example 1, and FIG. 2 is a beverage container in a state where a shrink label is peeled off. The beverage container has a container 1 filled with a beverage, an overcap 2 placed on the container 1, and a shrink label 3 (corresponding to a packaging means) mounted over both the container 1 and the overcap. .

[Composition of shrink labels]
The shrink label 3 is mounted over the trunk portion 10 of the container 1 and the top surface of the overcap 2 from the viewpoint of sanitary safety of the overcap 2 and prevention of falling off during the distribution process. Specifically, it is a plastic bag having flexibility, and is a homopolymer or copolymer of α-olefin such as polyethylene, polypropylene, poly-1-butene, poly-4-methyl-1-pentene, 6 A film of a thermoplastic resin such as a polyamide resin such as nylon, 6,6-nylon, 6,10-nylon, or the like, or a polyester resin such as polyethylene terephthalate, polybutylene terephthalate, or polyethylene naphthalate, or 1 so as to shrink by heating in advance. The film is formed of a film subjected to stress by axial stretching, biaxial stretching or multiaxial stretching, for example, a plastic film made of polyvinyl chloride (PVC), polyethylene terephthalate (PET), polystyrene (PS) or the like. The film thickness of the shrink label 3 is 20 μm to 200 μm.

  The shrink label 3 has a region that covers the body portion 10 of the container 1, a region that covers the cylindrical portion 20 of the overcap 2, and a region that covers the top surface 2 a of the overcap 2. In addition, in the region covering the cylindrical portion 20 and the top surface 2a of the overcap 2 of the shrink label 3, two break lines 31 are formed in parallel by perforations that can be broken in the vertical direction. In addition, a single break line 32 is formed between the region covering the tubular portion 20 and the region covering the body portion 10 by a perforation that can be broken in the circumferential direction (corresponding to a breaking means). Further, at the tip of the break line 31, a knob portion 31 a is formed in which both sides are cut obliquely so that a consumer can easily pick them. The consumer picks the knob 31 a and pulls it along the break line 31 to cut the shrink label 3 in the region covering the overcap 2, and peels it off along the break line 32 in this state. Thereby, only the shrink label 3 of the overcap 2 part can be easily peeled off. In addition, the knob | pick part 31 does not need to be cut especially diagonally, and may be comprised so that all the shrink labels 3 may be peeled off, It does not specifically limit.

[Container configuration]
The container 1 has a trunk portion 10, a shoulder portion 11 formed by reducing the diameter from the trunk portion 10, and a mouth-and-neck portion 12 that is squeezed into a cylindrical shape from the shoulder portion 11 (see FIGS. 6 to 8). A female screw is formed in the mouth and neck portion 12, and a bottle cap 13 having a tamper evidence function is attached to the female screw. Further, a lower surface member 15 that closes the lower surface of the body portion 10 is fastened and fixed to the lower portion of the container 1, thereby forming a tightening portion 14. The container 1 is a so-called bottle can and is formed of an aluminum material or a steel material. In addition, although Example 1 demonstrates a bottle can, you may apply not only to a bottle can but to a PET bottle, a normal two piece can, a three piece can.

[Configuration of overcap]
FIG. 3 is a perspective view of the overcap 2. FIG. 3A is a perspective view of the overcap 2 in an upright state (a state where the opening side is down), and FIG. 3B is an inverted state (a state where the opening side is up). It is the perspective view which looked at the overcap 2 from the upper part. The overcap 2 has a cylindrical portion 20 that covers the outer peripheral side of the mouth and neck portion 12 and the shoulder portion 11 of the container 1, and a top surface 2 a that closes one end of the cylindrical portion 20. The top surface 2 a has a larger diameter than the bottle cap 13 attached to the mouth and neck portion 12 and a smaller diameter than the trunk portion 10. The overcap 2 is a thin synthetic resin molded product, and a thermoplastic resin such as polyethylene, polypropylene, polystyrene, or polyethylene terephthalate is used. The thickness of the molded product is preferably 0.5 mm or more and 3 mm or less. Thickness is better to secure the required strength, thinner is better to reduce the material cost, and moderate thickness is necessary to secure the molding speed. When optimizing these factors, the thickness of the molded product is 0 More preferably, it is 8 mm or more and 1.2 mm or less. The overcap 2 can be used as a drinking cup by the customer by turning it over as shown in FIG. For the sake of explanation, the description will be made with reference to FIGS. FIG. 6 is a cross-sectional view taken along the line B-B in which the groove 24 is covered with the overcap, and FIG. 7 is a cross-sectional view taken along the line C-C where the recessed part 23 is cut in the state covered with the overcap.

(Concavity formed on the overcap)
A plurality of recesses 23 are formed on the top surface 2a. The shape of the concave portion 23 includes two large arc-shaped portions 231 arranged on the outer peripheral side, a small arc-shaped portion 232 arranged on the inner peripheral side, and two large and small arc-shaped portions 231 and 232 that connect both ends of each other. It has a substantially fan shape surrounded by a straight line 234. A plurality of the recesses 23 are arranged at substantially equal intervals on the same circumference. The recess 23 has an inner diameter surface 23 a that is bent in the inner direction of the overcap 2 and formed substantially perpendicularly in the small arc-shaped portion 232. And it arrange | positions so that this outer peripheral surface 23a and the outer periphery (mouth neck outer periphery) of the bottle cap 13 may engage (refer FIG. 7). Moreover, as shown in FIG. 7, it has the slope 23c which becomes shallow gradually as it expands from the internal diameter surface 23a. In Example 1, six recesses 23 are formed on the circumference, but the number is not particularly limited. However, considering the number of grooves 24 described later, three or more are desirable. Further, the shape of the concave portion 23 is not limited to the substantially fan shape shown in the first embodiment, and there are a plurality of hemispherical concave portions (for example, three or more) on the circumference, and is engaged with the outer periphery of the bottle cap 13. Just do it. That is, it is only necessary to have a concave shape that can prevent displacement of the overcap 2 in the horizontal plane, and the shape itself is not particularly limited.

  A flat first top surface portion 21 that is in contact with the top surface of the bottle cap 13 is formed on the inner peripheral side of the small arc-shaped portion 232 of the concave portion 23, that is, on the inner region surrounded by the concave portion 23. In addition, a flat annular second top surface portion 22 is formed on the outer peripheral side of the large arc-shaped portion 231 of the concave portion 23, that is, in a region sandwiched between the concave portion 23 and the outer periphery of the top surface 2a. In a state where the container 1 is covered with the overcap 2, the second top surface portion 22 is formed at a position higher than the first top surface portion 21.

(Groove formed on the overcap)
4 is a top view of the overcap in an inverted state, and FIG. 5 is a longitudinal sectional view taken along line AA in FIG. Each recess 23 has side surfaces 23b and 23b, which are linear wall surfaces formed substantially perpendicularly on two straight lines 234 connecting both ends of the two large and small arc-shaped portions 231 and 232. A portion sandwiched between the side surfaces 23 b and 23 b of the adjacent recesses 23 is formed as a groove portion 24 that connects the first top surface portion 21 and the second top surface portion 22. As described above, the overcap 2 of Example 1 is used as a beverage cup by pouring a beverage from the container 1. At that time, if the first top surface portion 21 is completely surrounded by the recess 23 formed continuously between the first top surface portion 21 and the second top surface portion 22, the beverage is located at the first top surface portion 21. It is easy to be stored in. If the consumer further tilts the overcap 2 to drink up the remaining liquid in a state where the beverage is stored (hereinafter referred to as residual liquid), the residual liquid remaining in the corner of the top surface portion 21 by the surface tension is the first. Without flowing smoothly from the top surface portion 21 to the second top surface portion 22, it hangs down directly from the first top surface portion 21 to the consumer's face, or directly drops inside the tubular portion 20 and scatters to the consumer's face. There is a risk of incurring a situation. Further, when the container 1 is covered with the overcap 2 again with the residual liquid in the corner of the top surface portion 21, the residual liquid hangs down from the overcap 2 toward the surface of the body portion 10 of the container 1. There is a risk of adhering to the hand of the customer who touched the trunk 10. Thus, if the 1st top surface part 21 is completely enclosed, there will be many problems and it is not preferred. Therefore, the groove 24 is formed as described above. That is, as shown by the arrows in FIGS. 4 and 5, the beverage stored toward the second top surface portion 22 flows out well without storing the beverage at the first top surface portion 21. In this case, all the drinks can be drunk cleanly when the consumer tilts the overcap 2.

[Characteristics of cup function]
The overcap 2 of Example 1 is used as a cup. At this time, since the top surface 2a has a larger diameter than the mouth-and-neck portion 12 and the bottle cap 13, the capacity of the cup can be ensured and the stability when the cup is placed can be improved. Further, since the top surface 2a of the overcap 2 has a smaller diameter than the body portion 10, the overcap 2 is attached to the container 1 sealed by the bottle cap 13, and the overcap 2 and the container 1 are connected to the shrink label 3 or the like. Even in the final product form packaged in the above, the outer shape of the overcap 2 does not become a problem when transported or put into a vending machine. Furthermore, as shown in FIG. 6, the aggressiveness to the shrink label 3 is suppressed by making the outer diameter of the overcap 2 smaller than the outer diameter of the can body (the outer diameter of the overcap 2 <the outer diameter of the can body). (Refer to the comparative example in FIG. 6). That is, the can and the can, or the can and the guide of the transport path interfere with each other, and the shrink label 3 is prevented from being broken or pinched by the edge of the opening of the overcap 2.

[Removability of shrink label]
As described above, when the customer peels off the shrink label 3, the user first picks the knob 31a and tears it in the vertical direction. At this time, if the knob portion 31a is formed along the plane without a gap, the consumer needs to cause the knob portion 31a with a nail or the like and pick the knob portion 31a in that state. However, the tip of the knob 31a enters between the nail and the finger to give a sense of incongruity, and when the nail is not stretched, it is difficult to cause itself. Therefore, in the first embodiment, the knob portion 31a and the concave portion 23 are arranged so as to overlap in a top view. That is, if the knob 31a is located above the recess 23, the consumer can pick it up from the beginning without causing the knob 31a with a nail or the like, and can easily peel it off without giving a sense of incongruity. .

[Characteristics regarding stackability]
FIG. 8 is a view showing a state in which beverage containers are stacked (only the overcap 2 and the shrink film 3 are shown as a longitudinal sectional view). FIG. 7 is a longitudinal sectional view in which only the overcap 2 and the shrink film 3 are cut along the line CC in FIG. 1, and shows only the upper part of the container 1 stacked thereon.
When distributing beverage containers to the market as products, it is advantageous to be able to store, transport, display, etc. by stacking beverage containers in this way, and the ease of stacking such products is generally referred to as stackability. I'm calling. In order to improve the stackability, it is not sufficient that the upper and lower surfaces of the product are simply flat surfaces. To prevent easy shifting even if some lateral force is applied, It is preferable to configure so as not to allow relative movement. Therefore, in Example 1, the outer diameter of the overcap 2 is formed smaller than the inner diameter side of the tightening portion 14 formed in the lower portion of the bottle can, and the upper end outside of the overcap 2 and the tightening portion 14 are fitted. I tried to fit. In addition, as for the clearance gap between the winding peripheral part 14 inner peripheral surface and the outer peripheral surface of the overcap 2 at the time of a fitting, 1 mm or less is desirable. Thereby, even if it receives the force from a horizontal direction, the shift | offset | difference of goods can be prevented.

  Here, when filling the inside of the container 1 with a beverage, it is generally performed by pressure filling with an inert gas or the like from the viewpoint of oxidation prevention. A pressure higher than atmospheric pressure also acts on the inside of 1. Therefore, it is expected that the lower surface member 15 of the container 1, particularly the central portion of the lower surface member 15 swells slightly due to changes in weather and temperature. In this case, when the lower surface member 15 swells and comes into contact with the first top surface portion 21, the stacked beverage containers are lifted, and the fitting with the tightening portion 14 may be shallow. Therefore, when the second top surface portion 22 is formed at a position higher than the first top surface portion 21 and the beverage containers are stacked, the peripheral portion of the bottom member 15 of the stacked beverage container is always kept by the second top surface portion 22. I was supported. In other words, the stacking property is improved by forming a gap between the first top surface portion 21 and the lower surface member 15.

[Characteristics of overcap formability]
Next, the moldability of the overcap 2 will be described. FIG. 9 is a partial cross-sectional view showing a configuration in which an engaging claw portion with a bottle cap is erected from the top surface in an overcap of a comparative example. In Example 1, since the recessed part 23 is formed by the bending | flexion of the top | upper surface 2a, and it is made to engage with a bottle cap by this recessed part 23, all the structures are the combination of the bending shape of a plate-shaped member. On the other hand, the comparative example shown in FIG. 9 has the engaging claw portion 100 erected from the plane. In the case of molding with a thermoplastic resin or the like, it is generally performed by injection molding. Specifically, a resin heated to a temperature at which the thermoplastic resin softens against the mold is pressed by applying an injection pressure (100 to 3000 kgf / cm ² ), and the mold is filled and molded. In this case, there is a problem that sink marks occur on the outer surface where the claw portion 100 for engagement on the top surface is located.

  Here, “sink” refers to a dent (dent) generated on the outer surface of the molded product. The criteria for sink marks are determined mainly by the required quality of molded parts (products) that require a high appearance, and in some cases, the appearance of the product is judged to be poor due to the product quality. Sinking is a behavior that depends on the volumetric shrinkage (isothermal PVT characteristics) of the resin, from the time history of each part in the injection molding process, that is, from the molten state at the time of injection to the solidified state of the pressure holding process and the cooling process. Occurs in the process. The molten resin filled in the mold is cooled and solidified through the mold surface. In the process of solidification (holding pressure, cooling) where solidification proceeds from the outer surface of the molded product, if the set injection conditions (holding pressure / time) cannot compensate for the volume change (volume shrinkage) associated with the PVT characteristics, Resin located on the surface of the molded product causes shrinkage (dents) that impair the quality of the molded product appearance due to tension (shrinkage force) that accompanies volumetric shrinkage of the resin in the molten state. On the other hand, when the outer surface of the molded article has a strength (with a solidified layer) that can withstand the shrinkage force, a void nest is generated inside, and there are cases where the appearance does not cause a problem. It cannot be said that it is preferable from the viewpoint of stability. In addition, potential factors due to product shape (bosses, ribs, plate thickness, uneven thickness, etc.) and mold structure (cooling pipe design, mold material, cooling medium, etc.) are pre-existing at the product design and mold design stage. If no measures are taken, sink marks cannot be resolved. That is, it is necessary to pay attention to the basic design of the overcap, and it cannot be avoided simply by changing the injection molding conditions.

  Therefore, in the first embodiment, instead of forming the standing portion where the sink may occur, a structure satisfying all the conditions is obtained by combining the bent shapes of the plate-like members to avoid the occurrence of sink. ing.

As described above, the following operational effects can be obtained in the first embodiment.
(1) A container 1 having a shoulder 11 and a mouth / neck part 12 formed by reducing the diameter from the body part 10, an overcap 2 attached so as to cover the mouth / neck part 12, and an overcap 2 attached to the container 1 Shrink label 3 (packaging means) provided with a breaking line 31 (breaking means) having a knob 31a for a user to pick with fingers, while covering both the container 1 and the overcap 2 in a closed state The overcap 2 has a top surface 2a having a diameter larger than that of the mouth / neck portion 12 and a diameter smaller than that of the body portion 10, and a concave portion 23 formed by bending from the top surface 2a toward the inside of the overcap 2. Thus, the concave portion 23 has a portion that engages with the outer periphery of the bottle cap 13 (outer neck portion outer periphery), and the knob portion 31a and the concave portion 23 are arranged so as to overlap in a top view.

  That is, the cup function can be improved by making the top surface 2a of the overcap 2 have a large diameter. Further, by engaging the overcap 2 and the container 1 by the recess 23 formed in the top surface 2a, a stable attachment state can be secured and the transportability can be improved. In addition, the formation of sink marks can be suppressed by forming the recesses 23 by bending. In addition, since the knob part 31a and the concave part 23 are arranged so as to overlap in a top view, the consumer can easily pick the knob part 31a, and the shrink label 3 can be easily peeled off.

  (2) The concave portion 23 includes a large arc-shaped portion 231 disposed on the outer peripheral side of the top surface 2a, a small arc-shaped portion 232 disposed on the inner peripheral side of the top surface 2a, and the two large and small arc-shaped portions 231, 232 The first top surface portion 21 on the outer peripheral side from the large arc-shaped portion 231 and the second top surface portion on the inner peripheral side from the small arc-shaped portion 232 Since the beverage has the groove portion 24 connecting 23, the beverage flows out toward the second top surface portion 21 without being stored at the first top surface portion 21. Therefore, all the drinks can be drunk cleanly when the consumer tilts the overcap 2.

  (3) The container 1 is a bottle can having the tightening portion 14 on the lower surface, and since the outer diameter of the top surface 2a is smaller than the inner diameter of the tightening portion 14, the stackability can be improved.

  (4) The top surface portion 2 a has a first top surface portion 21 on the inner peripheral side from the concave portion 23 and a second top surface portion 22 on the outer peripheral side from the concave portion 23, and the second top surface portion 22 is from the first top surface portion 21. When the beverage containers are stacked, the lower surface member 15 of the stacked beverage containers is supported by the second top surface portion 22. Therefore, even if the lower surface member 15 of the container 1 slightly swells due to changes in weather or temperature, the stacked beverage containers do not float, and the stacking property can be improved.

(Other examples)
Although the first embodiment has been described above, the specific configuration is not limited to the above. FIG. 10 is a partial sectional view showing another embodiment. As shown in FIG. 10, in order to make the engagement between the container 1 and the overcap 2 more reliable even after the shrink label 3 is peeled off, an engagement protrusion 23d is formed on the inner diameter surface 23a, You may comprise so that the uneven | corrugated | grooved part of the bottle cap 13 may be engaged. According to this, it is possible to stably attach the overcap 2 even after the bottle cap 13 is fitted again before the consumer drinks all the beverage.

  Moreover, although the bottle can which is a three piece was shown as a container in Example 1, you may apply to other containers, such as a two piece can and a plastic bottle. Moreover, although the example which coat | covered the shrink label 3 to the downward direction of the trunk | drum 10 was shown, it may be halfway and you may make it cover the lower surface member 15 further.

1 Container 2 Overcap 2a Top 3 Shrink label (packaging means)
DESCRIPTION OF SYMBOLS 10 Body part 11 Shoulder part 12 Neck part 13 Bottle cap 14 Tightening part 15 Lower surface member 20 Cylindrical part 21 1st top surface part 22 2nd top surface part 23 Recessed part 23a Inner diameter surface 24 Groove part 31 Breaking line (breaking means)
31a Knob 32 Break line

Claims (4)

A container having a shoulder and a mouth-and-neck formed by reducing the diameter from the trunk;
It is attached so as to cover the mouth and neck, and the top surface, a cylindrical portion extending downward from the peripheral portion of the top surface, and a concave portion bent from the top surface to the inside of the cylindrical portion, An overcap having a portion engaged with the outer periphery of the mouth neck on the inner peripheral side of the recess;
Packaging means provided with a breaking means having a knob and covering both the container and the overcap together with the overcap attached to the container;
Consisting of
The overcap is larger in diameter than the mouth / neck portion and smaller in diameter than the body portion, and is bent from the top surface to the inside of the overcap and is engaged with the outer periphery of the mouth / neck portion on the inner diameter side. And a recess to be
The beverage container, wherein the knob and the recess are arranged so as to overlap in a top view. The beverage container according to claim 1,
The concave portion connects a large arc-shaped portion disposed on the outer peripheral side of the top surface, a small arc-shaped portion disposed on the inner peripheral side of the top surface, and both ends of the two large and small arc-shaped portions with a straight line. It is substantially fan-shaped surrounded by a straight line portion, and has a groove portion connecting the first top surface portion on the outer peripheral side from the large arc-shaped portion and the second top surface portion on the inner peripheral side from the small arc-shaped portion. A container for beverages. The beverage container according to claim 1 or 2,
The container is a can having a tightening portion on the lower surface,
The beverage container, wherein the top surface has a diameter smaller than that of the tightening portion. The beverage container according to claim 3,
The top surface has a first top surface portion on the inner peripheral side from the concave portion, and a second top surface portion on the outer peripheral side from the concave portion,
The second top surface portion is formed at a position higher than the first top surface portion, and when the beverage containers are stacked, the bottom surface of the stacked beverage containers is supported by the second top surface portion. Beverage container.

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