JP6291383B2 - Mouth cap for beverage can - Google Patents

Description

  The present invention relates to a drinking cap for a beverage can that makes it easy to drink canned beverages such as can juice, soft drinks, can beer, and other alcohols.

  Most canned beverages currently in circulation use partial open end (POE) can lids, which are easy open ends. There are pull tab type (pulltab) and steon-tab type (Stay-on tab) in this partial open end, but pull tab type (pulltab) needs to dispose of the tab after it has been removed. In many cases, so-called littering is abandoned in the environment, and is rarely used from the viewpoint of preventing environmental destruction.

  When drinking a drink stored in a can-beverage of a “Stay-on tab”, the tab is raised, and the opening formed by the score opens toward the inside of the can and becomes an open state. And an internal drink can be drunk by putting a lip directly on the edge of the can of this opening part, and tilting a can.

  However, since the surface of the can is exposed to the external environment during transportation, there is a risk that dust and dirt will adhere. In addition, the possibility of being touched by another person cannot be denied, so the image of unsanitary is not wiped out. In addition, if you drink with your lips directly against the edge of the top lid of the beverage can, the feel of the can edge will be poor and the content coming out of the narrow opening will not be smooth, so there will be no beverage in the mouth. There was a bad feeling to enter, it was difficult to drink because the air also entered the oral cavity together, overflowed when not used to it, and there were cases where children could not drink well.

  In JP-A-11-245951 (Patent Document 1), the contents of beverage cans such as soft drinks, coffee and beer can be drunk directly from the cans, but the same as when drinking in a container such as a cup with the top fully open. In order to provide a tool that protects the lips from heat when drinking from a hot beverage can, the caliber matched to the upper dimensions of the beverage can In order to prevent the can and the cylinder from coming into close contact with each other and to prevent them from coming off easily, the can comes into contact with the can inside the cylinder. A beverage can mounting tool, which is a tool with a protrusion on its part, is disclosed.

  However, since the beverage can mounting tool of this document is a simple cylindrical body, the beverage directly coming out from the opening of the beverage can flows along the peripheral wall of the cylindrical body and reaches the oral cavity. However, since the flow of the beverage is not regulated, there is a possibility that it flows outside the lips and leaks outside. In addition, since the cylinder is almost the same diameter and straight as a beverage can, the can must be tilted in order to flow well into the mouth. There was a problem that they could not touch and drink well. Furthermore, not only a small amount of beverage is stored in the upper portion of the beverage can each time it is finished drinking, it is unsanitary but also causes dirt.

  Japanese Patent Application Laid-Open No. 11-321875 (Patent Document 2) solves the problem that in the conventional beverage can, the opening is part of the circumferential direction, so that there is directionality when drinking and it is difficult to drink. In order to do this, the spout 10 has an attachment part 30, a neck 40, and a drinking mouth 50. The attachment part 30 has a skirt part 31 covering the outer periphery of the upper part having the opening 25 of the beverage can 20, and Located on the inner peripheral surface of the skirt portion 31, the annular recess 32 into which the tightening portion 23 of the beverage can 20 fits, and located below the annular recess 32, protrudes from the inner peripheral surface of the skirt portion 31, and is tightened A spout that can be attached to and detached from a beverage can having a claw portion 33 that elastically hooks to the lower edge of the portion 23 is disclosed.

  However, since the spout disclosed in this document has a funnel-shaped outer shape that opens in the direction of the opening of the beverage can 20, the tip 50 is narrowed. One reason for this shape is considered to be to attach the cap 60 and close the drinking mouth 50 of the spout 10 as described in paragraph 0029 of the same document. However, with such a shape of mouth, it is necessary to add this part to the mouth in order to drink the contents, and it is difficult for a small child to drink. In addition, in the case of effervescent beverages, problems such as foaming in the oral cavity and loss of gas outlets and overflowing with liquid from the mouth are likely to occur. Furthermore, a good texture like drinking with a glass cannot be obtained. In addition, not only a small amount of beverage is stored at the top of the beverage can each time it is finished drinking, it is unsanitary but also causes dirt.

  Japanese Patent Application Laid-Open No. 2004-123162 (Patent Document 3) can easily pull up the tab of the pull chip fixed to the upper lid of the beverage can to prevent dust or the like from adhering to the surface of the beverage can. For the purpose of making a cap with a mouthpiece that makes it easy to drink, a side hole of the mouthpiece with a mouthpiece is provided with a bag hole for inserting a tab of a pull chip in its inverted state, and the lower lip on the top of the mouthpiece with a mouthpiece There is disclosed a cap with a can mouthpiece in which a mouth portion having a shaped beverage guide is provided to face an outflow opening opened by a pull tip.

  Also, paragraph 0028 of the same document states that “the drinker can lift the can by hand and drink the beverage in the can by touching the lips from the lower outside of the lower lip beverage guide 6. The guide protrudes laterally from the cylindrical side wall portion 3, and the overhang increases from the lower side to the upper side, so that it is possible to drink without spilling the drink. The dust on the upper surface is not swallowed together with the beverage. "

  However, in the configuration of this document, the distance from the outflow opening of the beverage can to the outer lower end of the lower lip-shaped beverage guide portion 6 is short, and the inflow of air and the outflow of the beverage are accompanied through the narrow opening, and the flow of the beverage is It will reach the oral cavity before it becomes stable, making it difficult to drink. Moreover, there is not much merit in providing a cap as a separate body except for the hygiene aspect in which the mouth cannot be directly put on the can.

  Japanese Patent Application Laid-Open Publication No. 2014-066552 (Patent Document 4) makes it easy to drink beverages in beverage cans, prevents spills from leftovers of beverages left over from beverage cans, prevents intrusion of garbage, etc. For the purpose of providing a beverage can mouthpiece holder that can be fitted and fitted to a beverage can that can be stored and carried, the holder 1 is covered from above with the tightening portion of the beverage can D, and several slit portions 1e. The base locking projection divided in step 1 is expanded by the winding tightening convex portion of the tightening portion, pushed into the fitting concave portion, fitted and fitted, and further screwed with the screw ring 2, tightening, and the winding tightening convex portion A beverage can and mouthpiece holder in which a beverage can and a holder for tightly fitting and fitting the portion and the fitting portion concave portion are integrated, and the cap 3 is screwed and tightened to the integrated beverage can holder, By sealing, inside the can Spilled beverages, invasion of dust or the like is also prevented, temporary storage, and a beverage can spout holder can be carried disclosed.

  However, since the outer shape of the beverage can mouthpiece holder in this document is also generally cylindrical, the beverage directly coming out from the opening of the beverage can flows along the peripheral wall of the cylindrical body and reaches the oral cavity. However, since the flow of the beverage is not regulated, there is a possibility that it flows outside the lips and leaks outside. In addition, since the cylinder is almost the same diameter and straight as a beverage can, the can must be tilted in order to flow well into the mouth. There was a problem that they could not touch and drink well. Furthermore, not only a small amount of beverage is stored in the upper portion of the beverage can each time it is finished drinking, it is unsanitary but also causes dirt.

JP-A-11-245951 JP 11-321875 A JP 2004-123162 A JP 2014-066552 A

  It is an object of the present invention to provide a drinking cap for a beverage can that can improve the feel when drinking a can beverage, can be easily drinkable, can be easily attached, and the beverage does not accumulate in the upper portion of the can. That is.

The above problem is solved by the following configuration of the present invention.
(1) A cylindrical outer cylinder (2) that forms the outer periphery of the cap body (1), and an inner lid that is formed near the middle part of the outer cylinder (2) and partitions the inside of the outer cylinder (2) vertically. 3), a discharge port (4) that opens at a position corresponding to the opening of the beverage can of the inner lid (3), and the discharge port (4) and the opening of the beverage can are connected to supply the beverage to the discharge port. (4) having a guide tube (5) leading to
The outer cylinder (2) is formed from an outer cylinder upper part (21) above the inner lid (3) and an outer cylinder lower part (22) below,
The outer cylinder upper part (21) is formed by a plurality of structural members having substantially the same width, the upper part having a large diameter and the lower part having a small diameter so that the diameter gradually increases toward the upper end, and a thin part connecting them.
The outer cylinder lower part (22) is formed by a plurality of structural members having substantially the same width, the lower part having a large diameter and the upper part having a small diameter so that the diameter gradually increases toward the lower end, and a thin part connecting them.
It is formed so as to be folded in a nested or bellows shape so that the small diameter side of each structural member is folded inside the large diameter side so as to fit within the width of one structural member,
A drinking cap for beverage cans made of silicone rubber .
(2) The drinking cap of the beverage can according to (1), wherein the thickness of the thin portion is about 1/10 to 1/3 of the average thickness of the other portions .
(3) The drinking cap of the beverage can according to (1) or (2) above having an upper lid that fits into the opening.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to improve the feel at the time of drinking a can drink, to make it easy to drink, and to provide a drinking cap that is easy to attach and does not store a drink at the top of the can. . For this reason, the drink of a drink can can be drunk deliciously from a drinking mouth, and penetration | invasion of garbage etc. can be prevented as much as possible.

It is a side view which shows the external appearance of the drinking cap of this invention. It is a top view which shows the external appearance of the drinking cap of this invention. It is a bottom view which shows the external appearance of the drinking cap of this invention. FIG. 2 is a cross-sectional view taken along the line A-A ′ of FIG. 1. It is a B-B 'cross section arrow directional view of FIG. It is sectional drawing which showed the state folded according to the A-A 'cross-sectional arrow view of FIG. It is a side view which shows the state which mounted | wore the drinking can with the drinking cap of this invention. It is a side view which shows the external appearance of the upper cover of the drinking cap of this invention. It is a top view which shows the external appearance of the upper cover of the drinking cap of this invention. It is a bottom view which shows the external appearance of the upper cover of the drinking cap of this invention. It is a C-C 'cross-sectional arrow view of FIG. It is sectional drawing which shows the state which folded the drinking cap of this invention and accommodated in the upper cover.

  The drinking cap 1 of the present invention forms the outer periphery of the cap body 1 as shown in FIGS. 1 to 3, for example, and is formed in the vicinity of the cylindrical outer cylinder 2 and the middle portion of the outer cylinder. An inner lid 3 that closes the lid, a discharge port 4 that opens at a position that is offset from the center of the inner lid 3 and that corresponds to the opening of the beverage can, and the discharge port 4 and the opening of the beverage can And a guide tube 5 that guides the beverage to the discharge port. Here, FIG. 1 is a side view showing an embodiment of a drinking cap, FIG. 2 is a plan view, and FIG. 3 is a bottom view.

  The outer cylinder 2 is separated into an upper part and a lower part by an inner lid 3 formed at an intermediate part. The upper part 21 of the outer cylinder 2 is greatly opened in a cylindrical shape, and a part thereof functions as a drinking mouth similar to a cup. The outer periphery of the outer cylinder is formed so that its inner periphery is slightly smaller than the outer periphery of the beverage can, and the upper part of the beverage can exactly fits into the lower part of the outer cylinder. At this time, the inner diameter of the lower portion of the outer cylinder is expanded by elastic deformation to a size that matches the outer shape of the beverage can, so that the beverage can can be stored and the upper portion of the beverage can can be held in the lower portion of the outer cylinder by the restoring force due to elasticity. It has become.

  Although the outer cylinder upper part 21 may be formed in a cylindrical shape, it may be formed in a so-called trumpet shape by gradually increasing the diameter toward the upper end as in the illustrated example. By forming it in a trumpet shape, the edge of the outer cylinder upper part 21 does not easily hit the nose even when the can is greatly inclined during drinking, and it becomes easy to drink.

  The outer cylinder upper part 21 and / or the outer cylinder lower part may be formed so as to be folded in a nested shape or a bellows shape. When folding in a nested manner, either the upper or lower part has a large diameter and the other has a small diameter, and it has a cylindrical shape that approximates a part of a cone, and the small diameter side is folded inside the large diameter side. fold. The number of folding stages is not particularly limited, but is about 1 to 6 stages. In other words, this is a folding method in which the cross section has an alternating bellows shape. When folding as described above, the bent portion of the fold may be thinner than the other portions. Specifically, it is about 1/10 to 1/3 of the average thickness of other portions. Thus, by folding, it is possible to ensure the length of the upper part of the outer cylinder and the lower part of the outer cylinder, that is, the length from the junction with the inner lid to the upper end and the lower end while ensuring compactness.

  The length or height of the outer cylinder upper part 21 is not particularly restricted, but if it is too short, the distance from the discharge port to the drinking port is reduced, and the effect of rectifying the liquid flowing out from the discharge port is rectified. It will fade. On the other hand, if it is too long, it will be bothersome and difficult to handle. Specifically, the height from the upper surface of the discharge port to the upper end of the upper part 21 of the outer cylinder is preferably 40 to 80 mm, more preferably 45 to 75 mm, particularly about 50 to 70 mm. If the height is low, it is difficult to eliminate the difficulty of drinking.

  Similarly, the length and height of the outer cylinder lower portion 22 are not particularly limited, but if it is too short, the fitting force with the beverage can becomes weak, and if it is too long, it becomes difficult to attach and remove. Specifically, the height from the lower end of the guide cylinder 5 to the lower end of the outer cylinder lower part 22 is preferably 5 to 50 mm, more preferably about 10 to 30 mm.

  The outer cylinder lower part 22 may also be formed in a cylindrical shape, but may be formed in a so-called trumpet shape by gradually increasing the diameter toward the lower end as in the illustrated example. The merit of making the outer cylinder lower part 22 in the shape of a trumpet or gradually expanding in diameter is because it can be adapted to the shape of the target drinking can. In addition, depending on the target drinking can, there is a case where the shape formed in a normal cylindrical shape may conform to the shape of the drinking can, so it is good to have a similar shape corresponding to the shape of the target drinking can .

  The guide cylinder 5 is arranged at a position corresponding to the opening of the beverage can, and is arranged so that the guide cylinder 5 is inserted into the opening of the can upper lid 102. At this time, it is ideal that the shape of the lower end portion of the guide cylinder is at least partially the same as or similar to the opening shape of the opening, and is slightly smaller or sized to be elastically deformable. is there. The insertion depth of the guide tube is not particularly limited, as long as it can be inserted to such an extent that the opening can be closed and fitted or locked. For example, it is 1 mm or more, preferably 3 mm or more, and the upper limit is about 10 mm. .

  At this time, there is a possibility that the periphery of the tab of the opening is not completely blocked by the guide cylinder 5, but by minimizing the area of the portion that is not blocked, beverage leakage from this portion is minimized. Can be suppressed. In addition, the space corresponding to the periphery of the guide tube 5 in the space inside the outer tube lower part 22 is almost airtight due to the outer tube lower part 22 closely attached to the periphery of the beverage can and the guide tube 5 inserted into the opening. As long as there is no omission, the inflow of beverage into this part is suppressed to a negligible level. Here, the shape of the lower portion of the guide tube 5 does not necessarily have to be inserted into the opening, and may be a shape that can cover the upper portion of the pull around the opening. In this case, the portion corresponding to the pull may be covered by providing a recess or relief structure corresponding to the shape.

  The length of the guide cylinder 5 is set so that the guide cylinder 5 is inserted into the opening of the can lid 102 when the outer cylinder lower portion 22 is attached to the beverage can. That is, since there is a certain distance from the lower end 51 of the guide cylinder 5 to the lower end of the outer cylinder lower part 22 as described above, the guide cylinder 5 is inserted into the upper part of the beverage can and further pushed down in the direction of the can. Is inserted into the opening of the can lid 102 and fixed. At this time, it is important to arrange the guide cylinder 5 and the can lid 102 so that the positions of the openings exactly coincide with each other and the positions overlap each other.

  In this way, the tip of the guide tube 5 is inserted into the opening, and the beverage flows out through the flow path 51 inside the guide tube 5. The beverage that has flowed out flows out of the discharge port 4 and reaches the drinking port 21a that is the end portion along the inner surface of the outer cylinder upper part 21. And by applying a mouth to this part, it can be drunk while obtaining the same tactile sensation and usability as a container such as a cup. In addition, the drinking mouth 21a does not need to have a special structure, and may be an upper end portion of the outer cylinder upper portion 21 in the immediate vicinity of the discharge port 4.

  The inner lid 3 is formed in the vicinity of the middle part of the outer cylinder 2 and has a function of partitioning and closing the inside of the outer cylinder 2 and separating the outer cylinder 2 into an outer cylinder upper part 21 and an outer cylinder lower part 22. What is important in the inner lid 3 is to cover the upper surface of the drinking can stored in the outer cylinder lower part 22 so that the can lid is not exposed to the outside, and only the opening of the drinking can is passed through the guide cylinder 5. It is to communicate with the outside.

  In the inner lid 3, the beverage that has flowed out of the outlet 4 during drinking flows out into the outer cylinder upper part 21 through the upper portion of the inner lid 3. In addition, when drinking is finished, the function of separating the beverage remaining on the outer cylinder upper part 21 and the inner lid 3 from the can lid so as not to come into contact with the can lid, and the function of allowing some residual beverage to flow back into the beverage can from the discharge port 4 again. Fulfill. For this reason, the inner lid 3 may be formed in a U-shaped section or a semicircular shape whose end is curved upward. Alternatively, in order to make it difficult for the beverage to remain in the joint portion with the outer cylinder 2, only the joint portion may be rounded.

  The drinking cap 1 of the present invention may further include an upper lid 9. The shape of the upper lid 9 is not limited as long as it is attached to the upper end portion of the outer cylinder upper portion 21, covers the upper surface of the outer cylinder upper portion 21, and has a function of closing it. Usually, it can be easily configured with a bottomed shallow cylindrical body. By providing the upper lid, the inner diameter of the upper lid 9 is slightly smaller than the outer shape of the upper end of the outer cylinder upper portion 21, and the upper lid 9 and / or the outer cylinder upper portion 21 are elastically deformed so that they are fitted with each other. By providing the upper lid 9, it is possible to prevent the beverage that has flowed out from the discharge port 4 from spilling to the outside, which is convenient when carrying an open drinking can.

  The material for forming the drinking cap and the upper lid of the present invention is not particularly limited, and can be formed of metal, ceramics, ceramics, glass, and combinations thereof in addition to resin materials. However, since the material alone cannot sufficiently perform functions such as attachment to a drinking can and folding, or instead of the material, or in addition to the material, for example, the upper part of the outer cylinder, the lower part of the outer cylinder, the folding part Natural or synthetic elastomer may be used for the outer periphery of the upper lid. Specifically, isoprene rubber (IR), butadiene rubber (BR), styrene-butadiene rubber (SBR), chloroprene rubber (CR), nitrile rubber (NBR), polyisobutylene (butyl rubber IIR), ethylene propylene rubber (EPM, EPDM) ), Chlorosulfonated polyethylene (CSM), acrylic rubber (ACM), fluorine rubber (FKM), epichlorohydrin rubber (CO, ECO), urethane rubber (U), silicone rubber (Q), etc. Silicone rubber (Q) is preferred. By arranging an elastomer or the like at least partially, functions such as elastic deformation and flexibility can be exhibited, and the tactile sensation can be improved.

  Moreover, it can also use combining a normal resin material. Resin materials are highly safe and have a significant cost reduction effect due to mass production. The resin material may be any material that is usually used for this type of drinking device, and specifically, polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), vinyl chloride, ABS resin, etc. In particular, polypropylene (PP) is preferable from the viewpoint of mass productivity and safety.

  The beverage can to which the drinking cap of the present invention can be attached is not particularly limited as long as it is a so-called easy open-end beverage can and can be used as a pull tab type or a steion tab type beverage can. There are no particular restrictions on the contents, and alcoholic beverages such as beer, strawberry high, Japanese sake, and various cocktails, dairy products such as soft drinks, fruit-based beverages, sports drinks, tea, and milk, and cooked foods such as soup and soup flour It can be used for various drinks such as health drinks and drinks containing medicinal ingredients.

  The drinking cap of the present invention can be colored in various colors, and may be colored by combining a single color or a plurality of colors. A simple geometric pattern may be attached, or a character such as an animal, a plant, a person, a comic, an animation, or a game may be attached. In addition, the business effect can be improved by adding a pattern for a corporate image such as a trademark. Furthermore, you may attach | subject the design which integrates with the drink can to mount | wear.

  Next, specific examples will be shown to explain the present invention in more detail. 1 to 6 are views showing an embodiment of the present invention. Here, FIG. 1 is a side view showing the appearance of the drinking cap of the present invention, FIG. 2 is a top view, FIG. 3 is a bottom view, FIG. 4 is a cross-sectional view taken along the line AA ′ in FIG. 1 is a cross-sectional view taken along the line BB ′ of FIG. 1, and FIG. 6 is a cross-sectional view showing a folded state along the cross-sectional view taken along the line AA ′ of FIG.

  In each figure, the drinking cap of the present invention forms the outer periphery of the cap body 1, a cylindrical outer cylinder 2, and an inner lid 3 that is formed near the middle part of the outer cylinder and closes the inner surface of the outer cylinder 2. A discharge port 4 formed in the inner lid 3 and opening at a position corresponding to the opening of the beverage can, and a guide cylinder 5 that connects the discharge port 4 and the opening of the beverage can and leads to the discharge port as a beverage flow path. And have. All of these components were formed of a silicone elastomer.

  The outer cylinder upper part 21 and the outer cylinder lower part 22 forming the cylindrical outer cylinder 2 are each constituted by a plurality of, in this example, three component members 211, 213, 215, component members 221, 223, 225, and each of these components The members 211, 213, 215 and the constituent members 221, 223, 225 are connected by thin portions 212, 214 and thin portions 222, 224.

  In this example, the thin portions 212, 214, 222, and 224 are obtained by forming a plurality of V-shaped grooves in the outer cylinder upper portion 21 and the outer cylinder lower portion 22 in the circumferential direction. If a strip-like or line-like thin portion can be obtained, it may be U-shaped or U-shaped, not V-shaped in cross section. This thin portion is formed to fold the outer cylinder 2 and is folded so that the side on which the groove is formed on the outer peripheral side and the inner peripheral side of the outer cylinder 2 is opened. Moreover, since each structural member is joined by the thin part on the opposite side to the groove, the way of folding is determined depending on whether the groove or the thin part is formed on the outer peripheral side or the inner peripheral side of the outer cylinder 2.

  In the illustrated example, it is folded so that the V-groove is opened. The outer cylinder 21 is folded at a time so that the inner periphery of the component member 215 and the inner periphery of the component member 213 face each other, and the outer periphery of the component member 213 and the outer periphery of the component member 211 face each other. Similarly, the outer cylinder lower portion 22 is folded at a time so that the inner periphery of the component member 225 and the inner periphery of the component member 223 face each other, and the outer periphery of the component member 223 and the outer periphery of the component member 221 face each other. As shown in FIG. 2, the entire structure is folded so as to be within the width of one component member. By folding in a nested manner in this way, there is an advantage that the folded state becomes very compact.

  In order to fold in a nested manner as described above, it is necessary to make the size of the members arranged outside and the members arranged inside different when folded, the inner circumference of the member arranged outside It is preferable that the outer periphery of the member disposed on the inside is substantially the same size. In addition, by setting the difference in the size of the outer periphery of each member, it is possible to form a shape in which the diameter gradually increases when deployed as a result, that is, a shape in which the diameter gradually increases in a trumpet shape. . The silicone elastomer resin used in this example was found to be easily folded because of its excellent elastic deformation characteristics.

  The inner lid 3 is a disc-shaped member integrally joined to the inner periphery of the intermediate portion 200 of the outer cylinder 2, and is a spout that pours out a beverage at a position that is unevenly distributed from the central portion thereof and that corresponds to the can lid opening. An outlet 4 is formed. The inner lid 3 has a function of partitioning the inner space of the outer cylinder 2 up and down and preventing the beverage in the attached beverage can from leaking outside. In addition, it has a function of staying around the outer cylinder upper part 21 and the upper part of the inner lid during drinking and returning the remaining beverage residue into the beverage can again. For this reason, the outer edge portion 31 around the inner lid is formed in a U-shaped cross section that curves upward so that the beverage does not easily remain.

  A belt-like recess 32 is formed in the circumferential direction on the outer edge of the inner lid at the joint between the inner lid 3 and the outer cylinder 2 corresponding to the lower part of the outer edge, so that the rib of the beverage can which will be described later can be absorbed inside. ing. An intermittent projection 32 is formed at the lower portion of the strip-shaped recess 32 so that it can be fitted into a recess at the lower portion of the drinking can rib. Further, by forming the strip-shaped recess, a thin portion is formed on the outer edge of the inner lid, and thereby the inner lid 3 is easily bent up and down. Thus, by making the inner lid 3 bend easily, there is also an effect that a lower end portion 51 of the guide cylinder 5 described later is elastically pressed and inserted into the can lid opening.

  The guide tube 5 is formed at the lower part of the discharge port 4, and the inner periphery thereof is formed in accordance with the shape of the discharge port opening and projects downward. The length is set so that the lower end 51 of the guide tube is inserted into the opening of the beverage can top lid 102 when the beverage can is attached to the lower portion of the outer tube. Further, although the position of the upper lid slightly varies depending on the type of beverage can, since the inner lid 3 bends when the guide tube lower end 51 is inserted into the opening of the beverage can upper lid 102 as described above, the degree of this bend. Can be absorbed.

  FIG. 7 is a view showing a state in which the drinking cap 1 of the present invention is attached to a beer can which is a beverage can. Details of the drinking cap 1 will be described with reference to FIG. As can be seen from these figures, when attached to a beverage can, the outer cylinder lower portion 22 is fitted into the upper portion of the beer can 101 formed in a trapezoidal cross-sectional shape. At this time, the rib 106 formed on the upper end portion of the beverage can 101 is inserted into the recess of the band-shaped recess 32 and the protrusion 32a at the lower portion thereof is fitted into the recess at the lower portion of the rib 106 to be fitted. The engagement relationship is formed as described above. Thus, when the drinking cap is attached to the beverage can, the silicone elastomer resin, which is a constituent material, is excellent in elastic deformation, so that it can be easily attached to and closely attached to the drinking can.

  The guide tube 5 is located just above the beverage or the opening and is inserted into the opening, and the internal cavity communicates with the opening to form a flow path for the beverage inside the beverage can. And the guide cylinder lower end part 51 is inserted in the said opening part by the pressing force by bending of an inner cover, and forms the fitting state with the opening part periphery.

  As a result of tasting the canned beer with such a drinking cap 1, the beer, which is a beverage that has flowed out from the discharge port 4, flows along the inner periphery of the inner lid 3 and the outer cylinder upper part 21, and flows into the drinking port 21 a. It flowed smoothly into the mouth. The feel at this time was soft and contrasted with the metallic feel of a beverage can. Moreover, since it can be drunk with the feeling of use close to a cup, and the beverage that has flowed out of the protruding port is rectified to some extent, it can be used with little discomfort.

   Next, another embodiment of the present invention will be described. 8 to 12 are views showing the appearance of an upper lid of a drinking cap according to another embodiment of the present invention. FIG. 8 is a side view, FIG. 9 is a top view, FIG. 10 is a bottom view, and FIG. FIG. 12 is a cross-sectional view showing a state in which the drinking cap is folded and housed in the upper lid.

  The upper cover 9 in the illustrated example has a bottomed shallow cylindrical shape having a short cylindrical annular wall 92 and a disk-shaped bottom plate 91, and is formed in a shape like a petri dish. Reinforcing ribs 93 are formed on the annular wall 92 at positions on the vertical and horizontal center lines in the plan view from about a half of the depth to the junction with the bottom plate. Each of these components was formed of a transparent polyvinyl chloride resin. By forming it with a transparent resin, the internal visibility was good and the design was excellent. Moreover, when transparency may fall or it may be translucent, you may form with a polypropylene resin etc.

  The upper lid 9 having such a shape is fitted and attached to the upper portion of the drinking cap 1 with the bottom plate opened upward and opened downward. The inner peripheral diameter of the annular wall and the outer peripheral diameter of the outer cylinder upper part 21 are substantially equal, or the inner peripheral diameter of the annular wall is formed to be slightly larger. For this reason, at the time of mounting, the corresponding portion of the outer cylinder upper portion 21 is fitted by being elastically deformed to some extent by the reinforcing rib 93, and is firmly fitted. By attaching the upper lid 9, the upper opening of the drinking cap 1 can be blocked and the beverage can be prevented from leaking out. With the beverage can actually placed, the beverage can was swayed for about 1 minute, but no beverage leakage was observed.

  FIG. 12 is a cross-sectional view illustrating a state in which the drinking cap 1 is folded in the upper lid 9. Since the drinking cap 1 thus folded can be included, it can be handled in such a state at the time of carrying or selling, and there is an advantage that it is compact and does not have a place.

  In the above embodiment, an example of a folding drinking mouth has been shown. However, the present invention is not limited to this, and it may not be folded, and the shape thereof may be a simple cylinder. Moreover, the material is not limited to silicone resin, vinyl chloride, or polypropylene resin, and may be combined with or replaced with other resins and materials. As described above, according to the present invention, it is possible to eliminate a sense of incongruity when the metal opening of the beverage can is used as a drinking mouth, rectify the pulsating flow that flows out of the opening, and provide a feeling of use that approximates that of a normal cup. Can be obtained.

   The drinking cap of the beverage can of the present invention can be used for beverage cans of various beverages. That is, it is not particularly limited as long as it is an easy open end type beverage can, but application to a steion tub type beverage can is preferable. Beverages also include alcoholic beverages such as beer, coffee high, Japanese sake, various cocktails, soft drinks, fruit juice beverages, sports drinks, dairy products such as tea and milk, cooked foods such as soups, health drinks, and medicinal ingredients It can be used for various drinks such as beverages.

DESCRIPTION OF SYMBOLS 1 Spout cap 2 Outer cylinder 3 Middle lid 4 Discharge port 5 Guide cylinder 9 Upper lid 21 Outer cylinder upper part 22 Outer cylinder lower part 31 Inner lid outer edge part 32 Circumferential recessed part 32a Protrusion 51 Guide cylinder lower end part

Claims (3)

A cylindrical outer cylinder (2) that forms the outer periphery of the cap body (1), and an inner lid (3) that is formed near the middle of the outer cylinder (2) and partitions the interior of the outer cylinder (2) up and down. The discharge port (4) opening at a position corresponding to the opening of the beverage can of the inner lid (3), and the discharge port (4) and the opening of the beverage can are connected to discharge the beverage to the discharge port (4). until leading guide cylinder (5) and has,
The outer cylinder (2) is formed from an outer cylinder upper part (21) above the inner lid (3) and an outer cylinder lower part (22) below,
The outer cylinder upper part (21) is formed by a plurality of structural members having substantially the same width, the upper part having a large diameter and the lower part having a small diameter so that the diameter gradually increases toward the upper end, and a thin part connecting them.
The outer cylinder lower part (22) is formed by a plurality of structural members having substantially the same width, the lower part having a large diameter and the upper part having a small diameter so that the diameter gradually increases toward the lower end, and a thin part connecting them.
It is formed so as to be folded in a nested or bellows shape so that the small diameter side of each structural member is folded inside the large diameter side so as to fit within the width of one structural member,
A drinking cap for beverage cans made of silicone rubber . The drinking cap of a beverage can according to claim 1, wherein the thickness of the thin portion is about 1/10 to 1/3 of the average thickness of other portions .   The drinking cap of a beverage can according to claim 1 or 2, further comprising an upper lid that fits into the opening.

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