JP4236573B2 - Carbonated beverage cap - Google Patents

Description

  The present invention relates to a cap for carbonated beverages, and more particularly to a cap for carbonated beverages suitable for non-alcoholic champagne beverages.

  The cap of champagne, which is often opened on the seats of weddings and parties, is a cork stopper fixed to the mouth with a wire. The cork stopper pops out with the sound of pressure. Further, as shown in Patent Document 1, a cap using an outer lid is used instead of a wire.

However, in the case of non-alcoholic champagne drinks that children drink at Christmas parties and birthday parties, jumping out corks are dangerous. For this reason, a normal integral synthetic resin cap is used, but when the cap is opened, the internal carbon dioxide gas gradually escapes, so there is no pong sound peculiar to champagne beverages. Further, if the fitting with the throat portion is tight in order to prevent the leakage of carbon dioxide gas in the distribution stage, there is a problem that it cannot be easily opened by the power of a child.
JP-A-9-77105

  The present invention solves the above-mentioned conventional problems, can reliably seal the mouth portion so that no carbon dioxide leaks in the distribution stage, and can be easily opened even by the power of a child. The present invention has been made to provide a cap for carbonated drinks that makes a popping sound peculiar to champagne drinks when opened.

The cap for carbonated beverages of the present invention made to solve the above-mentioned problems is a relatively soft inner plug provided with a top plate and a cylindrical leg portion in contact with the inner periphery of the mouth portion, and screwed into the mouth portion. A cap for a carbonated beverage comprising a relatively hard outer lid provided with a screw, and an inner annular projection that presses the central portion of the inner plug inside the outer lid, and a position directly above the cylindrical leg portion of the inner plug The outer ring-shaped protrusions are provided with inner and outer double ring-shaped protrusions, and the outer ring-shaped protrusions are formed with V-shaped portions that intensively press the positions directly above the cylindrical leg portions. Is. In addition, it is preferable that the top plate of the inner plug extends outside the top surface of the throat portion and is closely attached to the outer periphery of the throat portion by a step portion formed inside the outer lid.

  The carbonated beverage cap of the present invention has a structure in which a relatively soft inner plug provided with a top plate and a cylindrical leg portion in contact with the inner periphery of the mouth portion is pressed against the mouth portion by a screw-type outer lid. A complete sealing property can be obtained before opening. Moreover, since the cap for carbonated drinks of this invention should just rotate only the screw type outer cover isolate | separated from the inner stopper, it can be easily opened even with the power of a child. Moreover, when the outer lid is loosened, the inner plug made of a soft material is gradually pushed out by the pressure of carbon dioxide gas, and a popping sound is generated at the moment when the cylindrical leg part in contact with the inner periphery of the mouth part comes off from the mouth part. To do.

Preferred embodiments of the present invention are shown below.
FIG. 1 is a cross-sectional view of a state in which a cap for a carbonated beverage according to the present invention is fitted to a throat portion, wherein 1 is an inner plug and 2 is an outer lid. The inner plug 1 is made of a soft material such as an elastomer, and the outer lid 2 is made of a hard material such as heat-resistant polypropylene. The term “relatively” is used in the claims to express the relative relationship between the hardness of the inner plug 1 and the outer lid 2.

  The inner plug 1 includes a top plate 3 that covers the top surface 4 of the mouth portion and a cylindrical leg portion 6 that is in contact with the inner periphery 5 of the mouth portion. The outer diameter of the top plate 3 is larger than the outer diameter of the throat portion, and extends outside the throat portion by about 1 to 2 mm without the outer lid 2.

  The outer lid 2 is provided with a thread 9 on the inner surface of the skirt portion 7 that meshes with a screw 8 formed on the outer periphery of the mouth portion. In addition, inner and outer double annular projections 10 and 11 are provided on the upper inner surface. The inner annular protrusion 10 is for pressing the central portion of the inner plug 1. Further, the outer annular protrusion 11 is for pressing the position directly above the cylindrical leg 6 of the inner plug 1 as shown in FIG. Note that a small V-shaped portion 12 is formed at the tip of the outer annular projection 11, and the sealing effect is enhanced by intensively pressing directly above the cylindrical leg portion 6.

  Further, a portion outside the V-shaped portion 12 of the outer lid 2 extends horizontally, and a step portion 13 is formed at a portion connected to the base portion of the skirt portion 7. The step portion 13 has a role of bending the top end portion of the top plate 3 of the inner plug 1 downward so as to be in close contact with the outer periphery 14 of the mouth portion.

  The cap for carbonated beverages of the present invention configured as described above is used by being plugged into a non-alcoholic champagne beverage bottle or the like, and is a soft medium plug that contacts the top surface 4 and the inner periphery 5 of the mouth portion. This is a structure in which 1 is brought into close contact with the mouth portion by a screw type outer lid 2. The inner plug 1 receives an outward force due to the pressure of the carbon dioxide gas inside, but since the screw-type outer lid 2 firmly fixes the inner plug 1, a reliable sealing performance is ensured in the distribution stage. The

  In particular, as in the embodiment, if the position directly above the cylindrical leg portion 6 of the inner plug 1 is pressed by the annular projection 11 of the outer lid 2, the base portion of the annular projection 11 is securely adhered to the inner surface of the mouth portion. And the sealing performance can be improved. Furthermore, if the outer periphery of the top plate 3 of the inner plug 1 is brought into close contact with the outer periphery of the throat portion by the step 13 formed inside the outer lid 2 as in the embodiment, the soft inner plug 1 is Not only the top surface 4 but also the inner periphery 5 and the outer periphery 14 are in intimate contact with each other, and a very excellent sealing property can be obtained.

  The screw-type outer lid 2 is rotated at the time of opening the plug, but it is sufficient to rotate only the outer lid 2 without rotating the cylindrical leg portion 6 of the inner plug 1 in close contact with the mouth portion. For this reason, it is easier to open the cap as compared with the cap integrally formed as a whole, and the cap can be opened by the power of a child. If the whole is integrally molded, the cylindrical leg 6 that is in close contact with the inner periphery 5 of the throat must be rotated by the gas pressure, so that a strong force is required to rotate the cap. .

  When the outer lid 2 is rotated in this way, the outer lid 2 rises from the mouth portion, and the inner plug 1 is pushed up together with the outer lid 2 by the gas pressure. A popping sound is generated at the moment when the lower end of the cylindrical leg portion 6 of the inner plug 1 is removed from the mouth portion. At this time, since the inner plug 1 is inside the outer lid 2, there is no possibility that the inner plug 1 will fly like a cork plug and cause danger to the surroundings. For this reason, it is possible to safely open the seats where children gather.

  As described above, the cap for carbonated beverages of the present invention can reliably seal the mouth portion so that no carbon dioxide leaks in the distribution stage, and can be easily opened even by the power of a child. There are advantages such as a popping sound peculiar to champagne beverages when opening. Therefore, it is particularly suitable for non-alcoholic champagne beverages, but it goes without saying that it can also be applied to other carbonated beverages.

It is sectional drawing which shows embodiment of this invention. It is a perspective view of an inside stopper.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inner plug 2 Outer lid 3 Top plate 4 Top surface of throat part 5 Inner periphery of throat part 6 Cylindrical leg part 7 Skirt part 8 Screw 9 Screw thread 10 Annular protrusion 11 Annular protrusion 12 V-shaped part 13 Step part 14 Perimeter of the mouth

Claims (2)

A cap for a carbonated beverage comprising a relatively soft inner plug having a top plate and a cylindrical leg portion in contact with the inner periphery of the throat portion, and a relatively hard outer lid having a screw screwed into the throat portion The outer lid is provided with an inner annular projection that presses the central portion of the inner plug and an outer annular projection that presses the position directly above the cylindrical leg portion of the inner plug, and the outer annular double projection. A cap for a carbonated beverage characterized in that a V-shaped portion is formed at the tip of the annular projection to intensively press the position directly above the cylindrical leg . 2. The carbonic acid according to claim 1, wherein the top plate of the inner plug extends outward from the top surface of the mouth opening and is in close contact with the outer periphery of the mouth opening by a step formed inside the outer lid. Beverage cap.

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