JP3089684U - Beverage can cap - Google Patents

Abstract

(57) Abstract: A beverage can cap (10) is provided in which a stay tub (18) is covered while being raised, and a beverage does not flow out of the cap (10). A can lid (22) having a stay tab (18) and a score (20) is wound and fixed to an upper end of a substantially cylindrical can body (16), and a winding flange (24) is formed on an outer peripheral edge of an upper end of the can body (16). A cap (10) to be put on a beverage can, having a top plate (12) covering the whole of a can lid (22) and a side wall (14) fitted and engaged with the outer periphery of a tightening flange (24). In the state of being covered, a space portion 44 is formed between the inner surface of the top plate portion 12 and the can lid 22 to allow the stay tab 18 raised above the upper end of the winding flange 24. Further, the side wall portion 14 elastically contacts the outer periphery of the winding flange 24,
Further, the lower end of a substantially cylindrical annular convex portion provided on the inner surface of the top plate portion 12 facing the can lid 22 elastically contacts the surface of the can lid 22 to form a watertight structure between the cap 10 and the beverage can.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a beverage can cap having a stay tab having a stay tab and a score, and more particularly, to a beverage can cap that can be put on with a score tab opened by raising a stay tab.

[0002]

[Prior art]

 A technique for capping a beverage can is disclosed in JP-A-2000-62819. According to this technology, one side of a cap is swingably disposed around a fulcrum on a stop band attached to the outer periphery of a beverage can, and when the cap is closed on the beverage can and the cap is removed from the beverage can. It is configured so that the user can arbitrarily select the opened state.

[0003] The drinking mouth of the beverage can can be covered with a cap, and adhesion of dust and the like can be prevented, which is sanitary.

[Problems to be solved by the invention]

[0004] In the technique disclosed in the above publication, it is necessary to provide a stop band on the beverage can, and it is not possible to cope with the beverage can which is currently widely used in large quantities. In addition, the cap is closed by placing the inner surface of the top plate portion in contact with the upper end of the tightening flange of the beverage can, and the top plate portion is formed in a planar shape. Therefore, when the stay tab is raised to open the score and the free end of the stay tab is higher than the upper end of the flange, the cap cannot be properly closed. Further, the cap is lightly fitted to the outer periphery of the tightening flange to maintain the closed state, and when the beverage can is inadvertently tilted or turned over, the beverage inside the beverage can is evaluated from the score. Although there is a possibility that the beverage will flow into the cap, no measures have been actively taken to prevent the beverage in the cap from flowing out.

The present invention has been made in view of the circumstances of the prior art as described above, and can be adapted to a large quantity of a spread-stained tub and a beverage can with a can lid having a score. It is an object of the present invention to provide a beverage can cap that can be put on while the beverage is caused. It is another object of the present invention to provide a beverage can cap that prevents the beverage that has flowed out of the beverage can into the cap from flowing out of the cap. Another object of the present invention is to provide a beverage can cap capable of reducing the amount of beverage flowing into the cap.

[Means for Solving the Problems]

In order to achieve this object, the beverage can cap of the present invention is provided by winding and fixing a can lid having a stay tab and a score to an upper end of a substantially cylindrical can body, and fixing the upper end of the can body. A cap for covering a beverage can having a winding flange formed on the outer peripheral edge thereof, the cap having a top plate portion covering the whole of the can lid and a side wall portion fitted and engaged with the outer circumference of the winding flange. In addition, in a state where the lid is covered, a space is formed between the inner surface of the top plate and the can lid to allow the stay tab raised above the upper end of the winding flange. I have.

A substantially cylindrical annular convex portion is provided on the inner surface of the top plate portion toward the can lid, and a lower end portion thereof is inserted and abutted into a concave groove provided on an outer peripheral portion of the can lid. May be configured.

[0008] Furthermore, a substantially cylindrical annular convex portion may be provided on the inner surface of the top plate portion toward the can lid, and a lower end portion thereof may be in contact with the surface of the can lid.

[0009] Furthermore, a plurality of substantially cylindrical annular projections are provided concentrically, and a length up to a lower end according to the shape of the can lid is set so that the lower end abuts against the surface of the can lid. It is also possible to set and configure respectively.

[0010] Furthermore, an annular projection is formed on the inner surface of the top plate portion so as to face the can lid and to have the lower end abutting on the surface of the can lid so as to surround the stay tab and the score of the can lid. A part may be provided and configured.

[Embodiment of the invention]

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view of a first embodiment of a beverage can cap according to the present invention. FIG. 2 is an enlarged view taken along line AA of FIG. FIG. 3 is an enlarged view taken along a line BB in FIG. 1. FIG. 4 is an enlarged bottom view of FIG. FIG. 5 is an enlarged vertical sectional view showing a state in which a cap is put on a beverage can. FIG. 6 is a plan view showing a state where a cap is put on the beverage can.

In FIG. 1, a cap 10 includes a substantially flat disk-shaped top plate portion 12 and a substantially cylindrical side wall portion 14 provided at an edge portion thereof so as to cover a beverage can. It is desirable that the cap 10 can be attached to and detached from the beverage can by elastic deformation, and it is optimal that the cap 10 is formed of an elastic resin.

By the way, generally, in a beverage can, a can lid 22 having a stay tab 18 and a score 20 is fixedly wound around an upper end of a substantially cylindrical can main body 16, and is fixed to an outer peripheral edge of an upper end of the can main body 16. A winding flange 24 is formed. Further, a concave groove 26 is provided on the outer peripheral portion of the can lid 22 along the inside of the portion which is fastened and fixed. Further, the can lid 22 is often formed with a slightly high curved surface at the center.

Therefore, two circumferential projections 28 are formed on the inner peripheral surface of the side wall portion 14 of the cap 10, and when the cap 10 is put on the beverage can, the side wall portion 14 is formed on the outer periphery of the tightening flange 24. The inner peripheral surfaces of the flanges are fitted and elastically contacted with each other, and the two projections 28 are engaged with the upper and lower ends of the winding flange 24. When the projections 28 and 28 of the side wall 14 are engaged with the upper and lower ends of the flange 24, the inner surface of the top plate 12 is formed to be higher than the upper end of the flange 24. .

A substantially cylindrical first annular convex portion 30 is provided from the inner surface of the top plate portion 12 toward the concave groove 26 on the outer peripheral portion of the can lid 22, and the lower end thereof is inserted into the concave groove 26. It is configured to abut. Here, it is desirable that the lower end of the first annular projection 30 elastically contacts the bottom of the concave groove 26 in a state where the projections 28 of the side wall 14 are engaged with the upper and lower ends of the winding flange 24.

Further, a plurality of second to fifth annular convex portions 32, 34, 36, 38 are provided concentrically on the inner surface of the top plate portion 12 toward the surface of the can lid 22, and the lower end portion thereof is provided. Each is formed so as to elastically contact the surface of the can lid 22. The lengths of the second to fifth annular projections 32, 34, 36, 38 are appropriately set corresponding to the curved surface of the surface of the can lid 22. Moreover, it is desirable that the fifth annular convex portion 38 closest to the center elastically contacts the surface of the can lid 22 so as to surround the stay tab 18 and the score 20 provided on the can lid 22. Further, the fifth annular convex portion 38 closest to the center is integrally provided with ribs 40, 40 of which lower ends are elastically contacted with the surface of the can lid 22 at positions near both sides of the stay on tab 18 and the score 20. .

The cap 10 having such a shape is formed by resin molding, which is suitable for mass production at low cost. Then, an advertisement 42 or the like may be appropriately printed on the surface of the top plate portion 12 of the cap 10. In addition, the advertisement 42 may be formed integrally with the cap 10 by indicating characters or the like by concave and convex formed on the surface instead of printing. Further, a figure such as a person or an animal can be integrally formed on the surface of the top plate 12.

The cap 10 having such a configuration has the following operation. First, in the beverage can in which the score 20 is opened by raising the stay tab 18, and the beverage can be drunk, the free end side on which the stay tab 18 is pulled up is raised to be higher than the upper end of the winding flange 24. Often in a state. However, in the cap 10 of the present invention, the inner surface of the top plate portion 12 is placed on the beverage can and the projections 28, 28 of the side wall portion 14 are engaged with the upper and lower ends of the fastening flange 24. A space portion 44 is formed at a position higher than the upper end of the base member and allows the raised stay tab 18. As a result, the cap 10 can be properly covered on the beverage can with the stay-on tab 18 kept raised. Thus, the drinking spout of the beverage can with the score 20 opened can be sanitarily protected from dust and the like while the stay-on tab 18 is raised.

Further, in a state where the cap 10 is put on and engaged with the beverage can, the lower end of the first annular projection 30 elastically contacts the concave groove 26 of the can lid 22, and the second to fifth annular Since the convex portions 32, 34, 36, and 38 are in elastic contact with the surface of the can lid 22, respectively, a watertight structure is formed at each of the elastic contact portions, and even if the beverage can is tilted or overturned due to carelessness or the like, The beverage flowing out of the score 20 is stored in the cap 10 and does not flow out of the cap 10. The fifth annular projection 38 and the integral ribs 40, 40 form a small volume chamber surrounding the stay tub 18 and the score 20, so that the amount of beverage flowing into the cap 10 is reduced. Can be reduced. In addition, the beverage that has flowed into the chamber formed by the fifth annular convex portion 38 and the ribs 40 and 40 is mostly through the score 20 when the beverage can is returned to the normal position. When the cap 10 is removed, the beverage does not spill around.

In the first embodiment of the present invention, the two cans 28 and 28 on the inner peripheral surface of the side wall 14 of the cap 10 engage with the upper and lower ends of the tightening flange 24, so that the beverage can The relative position of the cap 10 placed over it is uniquely determined. Then, the protrusions 28, 28 are elastically engaged with the upper and lower ends of the winding flange 24, whereby a watertight structure between the beverage can and the cap 10 is formed. Therefore, the first to fifth annular convex portions 30, 32, 34, 36, 38 may not necessarily be provided. However, by providing the first annular convex portion 30, the relative position when the cap 10 is put on the beverage can is more uniquely determined, and the watertight structure between the beverage can and the cap 10 is more reliable. Has become. Further, by providing the second to fifth annular convex portions 32, 34, 36, and 38, a more water-tight structure is ensured, and the number thereof may be appropriately set or may not be present. .

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 7 is a longitudinal sectional view of a main part of a second embodiment of the cap of the present invention. 7, the same or equivalent members as those shown in FIGS. 1 to 6 are denoted by the same reference numerals, and redundant description will be omitted.

In the cap 10 of the second embodiment, an annular convex portion 50 having a large width is provided from the inner surface of the top plate portion 12 to the surface of the can lid 22, and a concentric circular shape is provided at the lower end surface. The fold-shaped concave and convex portions 50a are provided, and the lower ends of the fold-shaped concave and convex portions 50a are configured to elastically contact the surface of the can lid 22. By the fold-like unevenness 50a, the same water-tight structure as the second to fifth annular convex portions 32, 34, 36, 38 of the first embodiment can be obtained.

Further, a third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a longitudinal sectional view showing a third embodiment of the cap of the present invention, which is put on a beverage can. 8, the same or equivalent members as those shown in FIGS. 1 to 6 are denoted by the same reference numerals, and redundant description will be omitted.

In the third embodiment shown in FIG. 8, one protrusion 28 is provided at the lower end of the inner peripheral surface of the side wall portion 14 of the cap 10. The protrusion 28 is configured to elastically engage with the lower end of the tightening flange 24 due to the elastic deformation. In addition, an annular convex portion 52 is provided from the inner surface of the top plate portion 12 to the lower end thereof toward the surface of the can lid 22, and the lower end portion is configured to be in elastic contact with the surface of the can lid 22. The relative position of the cap 10 to the beverage can is determined by the projection 28 engaging the lower end of the tightening flange 24 and the annular projection 52 elastically contacting the surface of the lid can 22. .

Further, in the third embodiment, a shallow concave portion 54 is formed on the surface of the top plate 12 of the cap 10, and the peripheral edge of the concave portion 54 is formed as a dovetail groove. Is inserted. An advertisement or the like is appropriately written on the plate 56 by printing or the like.

In the third embodiment, the projection 28 and the annular projection 52 constitute a watertight structure between the beverage can and the cap 10. Note that the lower end of the annular convex portion 52 may have a fold-like unevenness as in the second embodiment. Then, by fitting different plates 56 as appropriate according to the contents of the advertisement, the cap 10 can be shared for different advertisement contents.

Further, in order to share the cap 10 for different advertisement contents, as shown in FIG. 9, an appropriate advertisement or the like is provided on the surface of the top plate 12 of the cap 10 shown in the first embodiment. May be affixed with a sticker 58 on which is printed.

In the above embodiment, the top plate 12 of the cap 10 is flat, but the present invention is not limited to this, and the top plate 12 is raised between the surface of the can lid 22 and the inner surface of the top plate 12. Any shape may be used as long as the space portion 42 that allows the stay tab 18 is formed, and the inner surface of the top plate 12 may be formed so as to face upwardly to face the stay tab 18, and may flow into the cap 10. Although the amount of beverage that can be served increases, the top plate 12 may be a semicircular sphere that is convex upward. Further, in the above-described embodiment, the cap 10 is formed of an elastic resin, but the present invention is not limited to this. It is sufficient that a water-tight structure is appropriately formed between the caps 10. For example, the cap is formed of a metal plate, and an appropriate slit is provided in a side wall portion so that the cap can be engaged with the tightening flange 24 by elastic deformation. It is also possible to provide an annular convex portion that comes into contact therewith or provide an appropriate packing member that elastically contacts the upper end of the winding flange 24.

[0029]

[Effect of the invention]

 As described above, since the beverage can cap of the present invention is configured, it has the following special effects.

In the beverage can cap according to the first aspect of the invention, the beverage can can be appropriately covered with the cap while the stay-on tab is raised higher than the upper end of the flange. Thus, the drinking spout can be protected from dust and the like. In addition, if the side wall of the cap is fitted and engaged with the outer periphery of the tightening flange in a watertight structure, the beverage does not spill out of the cap even when the beverage can is tilted or turned over.

[0031] In the beverage can cap according to claim 2 or 3, the annular convex portion forms a more reliable watertight structure between the cap and the beverage can, and the beverage spills out of the cap. There is no.

In the beverage can cap according to the fourth or fifth aspect, the lower end portion of the annular convex portion that comes into contact with the surface of the can lid is formed in multiple layers, so that the cap is formed between the cap and the beverage can. The watertight structure becomes more reliable.

In the beverage can cap according to the sixth aspect, a chamber surrounding the stay tub and the score is formed by the annular convex portion, and therefore does not flow out of the cap from the beverage can. However, the beverage that has flowed into the cap returns to the can via the score when the beverage can is in the proper posture.

[0034] In the beverage can cap according to claim 7, a small volume chamber surrounding the stay tub and the score is formed by the annular convex portion, and the amount of the beverage flowing out of the beverage can into the cap is reduced. can do.

In the beverage can cap according to the eighth or ninth aspect, an advertisement or the like can be easily arranged on the table on the top plate of the cap.

In the beverage can cap according to the tenth aspect, since the beverage can is manufactured by resin molding having elasticity, the cap that easily fits and engages with the beverage can by elastic deformation can be inexpensively formed using a mold. It is suitable for mass production.

[Brief description of the drawings]

FIG. 1 is a plan view of a first embodiment of a beverage can cap of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged view taken along a line BB in FIG. 1;

FIG. 4 is an enlarged bottom view of FIG. 1;

FIG. 5 is an enlarged vertical sectional view showing a state in which a cap is put on a beverage can.

FIG. 6 is a plan view showing a state where a cap is put on the beverage can.

FIG. 7 is a longitudinal sectional view of a main part of a second embodiment of the cap of the present invention.

FIG. 8 is a longitudinal sectional view of a third embodiment of the cap of the present invention, which is placed on a beverage can.

FIG. 9 is a diagram showing an example of sharing a cap for different advertisement contents, where (a) is a plan view,
(B) is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cap 12 Top plate part 14 Side wall part 16 Can main body 18 Stay-on tab 20 Score 22 Lid can 24 Winding flange 26 Concave groove 28 Protrusion part 30 First annular convex part 32 Second annular convex part 34 Third annular Convex part 36 Fourth annular convex part 38 Fifth annular convex part 40 Rib 42 Advertisement 44 Space part 50, 52 Annular convex part 50a Folded irregularity 54 Shallow concave part 56 Plate 58 Seal

Claims (10)

[Utility model registration claims] 1. A can lid having a stay-on tab and a score is fixedly fastened to the upper end of a substantially cylindrical can main body, and is put on a beverage can having a tightened flange formed on the outer peripheral edge of the upper end of the can main body. A cap having a top plate portion that covers the entirety of the can lid and a side wall portion that fits and engages with the outer periphery of the winding flange, and furthermore,
A beverage can, characterized in that a space is formed between an inner surface of the top plate and the can lid to allow the stay tab raised above an upper end of the tightening flange. cap. 2. The beverage can cap according to claim 1, wherein a substantially cylindrical annular convex portion is provided on an inner surface of the top plate portion toward the can lid, and a lower end portion thereof is provided on an outer peripheral portion of the can lid. A cap for a beverage can, wherein the cap is configured to be inserted into contact with the provided concave groove. 3. The beverage can cap according to claim 1, wherein a substantially cylindrical annular convex portion is provided on an inner surface of said top plate portion toward said can lid, and a lower end portion thereof is in contact with a surface of said can lid. A cap for a beverage can, wherein the cap is configured to be in contact with the beverage can. 4. A cap for a beverage can according to claim 3, wherein a plurality of said substantially cylindrical annular convex portions are provided concentrically, and said lower end portion is in contact with a surface of said can lid. A cap for a beverage can, wherein the length to the lower end is set according to the shape of the beverage can. 5. The beverage can cap according to claim 3, wherein concentric folds are provided at the lower end of the substantially cylindrical annular projection, and the lower end of the fold is the can lid. A beverage can cap characterized in that it is configured to abut against the surface of the beverage can. 6. The cap for a beverage can according to claim 1, wherein an inner surface of the top plate portion faces the can lid and has a lower end portion surrounding the can tab and the score of the can lid. A cap for a beverage can, wherein an annular convex portion is provided so as to be in contact with the surface of the lid. 7. The beverage can cap according to claim 6, wherein the annular convex portion is configured to abut on the surface of the can lid at a position near the stay tab and the score of the can lid. Characteristic beverage can cap. 8. The beverage can cap according to claim 1, wherein an advertisement or the like is printed or a sticker is attached to a surface of the top plate portion of the cap. 9. The beverage can cap according to claim 1, wherein a shallow recess is formed in a surface of a top plate portion of the cap,
A cap for a beverage can, wherein a plate is affixed or fitted and fixed to the recess. 10. The beverage can cap according to claim 1, wherein the cap is formed by molding an elastic resin.