JP3102503U - Cap for carbonated drinks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carbonated beverage cap which can surely seal a bottle mouth portion, can be easily opened, and has a low production cost.
SOLUTION: An inner plug 1 made of a soft material and a hard outer lid 2 are formed in two colors. The inner stopper 1 includes a top plate 3 and a cylindrical leg 6 that contacts the inner periphery of the bottle opening. The outer lid 2 is a screw type. The inner plug 1 made of a soft material fits well into the bottle opening like a packing, so that the sealing property is good even if the outer lid 2 is not strongly fastened. The inner lid 1 can be easily opened by rotating the outer lid 2. it can.
[Selection diagram] Fig. 1

Description

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

  The cap of champagne, which is often opened on the seats at weddings and parties, has a cork stopper fixed to the bottle opening with a wire. The pressure causes the cork stopper to pop out with a loud popping sound. Further, as shown in Patent Document 1, a cap using an outer lid instead of a wire is also used.

However, in the case of non-alcoholic champagne drinks that children drink at Christmas parties, birthday parties, and the like, a cork stopper that pops out is dangerous, so an integrally molded screw cap made of polypropylene resin or the like is used. However, such an integrally formed screw cap has a poor sealing property because it is hard as a whole, and must be strongly fastened to the bottle mouth in order to prevent leakage of carbon dioxide gas during the distribution stage. As a result, there has been a problem that the cap cannot be easily opened with the power of a child.
JP-A-9-77105

  The present invention solves the above-mentioned conventional problems, and it is possible to securely seal the bottle mouth so that there is no leakage of carbon dioxide gas at the distribution stage, and to easily open the bottle even with the power of a child. This was done to provide a beverage cap.

  The cap for carbonated drinks of the present invention made to solve the above-mentioned problem is characterized in that an inner cap made of a soft material is molded in two colors inside a screw type outer lid made of a hard material. It is. It is preferable that the inner plug is provided with a top plate that is in close contact with the top surface of the bottle mouth, and a cylindrical leg that is in close contact with the inner peripheral surface of the bottle mouth. Preferably, the outer lid is made of a polypropylene resin, and the inner plug is made of an elastomer.

  The cap for carbonated beverages of the present invention is formed by two-color molding of the inner plug made of a soft material inside the screw-type outer lid made of a hard material, so that the soft inner plug adheres to the bottle mouth. Thus, the sealing property can be secured. For this reason, there is no danger that gas will escape even if the outer lid is not firmly tightened, and it can be easily opened with the power of a child. In addition, since the outer lid and the inner plug can be molded simultaneously by the two-color molding method, the molding cost is reduced, and there is no trouble to combine the separately molded outer lid and the inner plug.

Hereinafter, preferred embodiments of the present invention will be described.
FIG. 1 is a cross-sectional view showing a state in which the carbonated beverage cap of the present invention is fitted to a bottle mouth, wherein 1 is an inner stopper, 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 a heat-resistant polypropylene. The inner plug 1 and the outer lid 2 are formed by two-color molding using a known two-color molding machine (simultaneous material molding machine). Therefore, the manufacturing cost can be reduced as compared with the case where the inner plug 1 and the outer lid 2 are separately molded and then combined.

  The inner stopper 1 includes a top plate 3 that covers a top surface 4 of the bottle mouth, and a cylindrical leg 6 that is in contact with the inner periphery 5 of the bottle mouth. On the other hand, the outer lid 2 has a screw thread 9 on the inner surface of the skirt 7 for engaging with a screw 8 formed on the outer periphery of the bottle opening. As shown, the top plate 3 of the inner plug 1 and the outer lid 2 are in close contact with each other.

  The carbonated beverage cap of the present invention thus configured is used by being plugged into a non-alcoholic champagne beverage bottle or the like. 1 is a structure in which a screw-type outer lid 2 makes close contact with the bottle mouth. The inner plug 1 receives an outward force due to the pressure of the carbon dioxide gas inside the bottle, but the screw-type outer lid 2 firmly fixes the inner plug 1 and the inner plug 1 made of a soft material is like a packing. The seal fits well to the bottle opening, ensuring a secure seal at the distribution stage.

  When the screw-type outer lid 2 is rotated at the time of opening, the inner plug 1 is gradually lifted while being simultaneously rotated and is opened. The cap for carbonated drinks of the present invention does not require the screw-type outer lid 2 to be fastened to the bottle opening with a large torque, and can be opened by the power of a child. Then, at the moment when the lower end of the cylindrical leg 6 of the inner stopper 1 comes off the bottle opening, the tapping sound is opened. At this time, if the outer lid 2 is gripped, there is no danger that the cap will fly and pose a danger to the surroundings. For this reason, even a seat where children gather can be safely opened.

  As described above, the cap for carbonated beverages of the present invention can securely seal the bottle mouth so that there is no leakage of carbon dioxide gas at the distribution stage, and can be easily opened with the power of a child. There is an advantage that a pop sound peculiar to the champagne drink is made when the bottle is opened. Further, since the outer lid 2 and the inner plug 1 can be molded simultaneously by the two-color molding method, the molding cost is reduced, and there is no need to combine the separately molded outer lid 2 and inner plug 1. Although the carbonated beverage cap of the present invention is particularly suitable for non-alcoholic champagne beverages, it goes without saying that it can be applied to other carbonated beverages.

FIG. 3 is a cross-sectional view showing an embodiment of the present invention.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Inner stopper 2 Outer lid 3 Top plate 4 Top surface of bottle mouth 5 Inner circumference of bottle mouth 6 Cylindrical leg 7 Skirt 8 Screw 9 Screw thread

Claims (3)

  A carbonated beverage cap, wherein an inner cap made of a soft material is formed in two colors inside a screw type outer lid made of a hard material.   2. The inner stopper according to claim 1, wherein the inner stopper is provided with a top plate that is in close contact with the top surface of the bottle mouth portion, and a cylindrical leg that is in close contact with the inner peripheral surface of the bottle mouth portion. Cap for carbonated drinks.   The carbonated beverage cap according to claim 1 or 2, wherein the outer lid is made of a polypropylene resin, and the inner plug is made of an elastomer.

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