JPH0840446A - Cork cap - Google Patents

Abstract

PURPOSE:To constitute a cork cap with a circular head and a cylindrical leg and insert the leg into the bottle opening and press in the cork into a common pierced hole of the head and the leg to seal the bottle by the cork protruded from the lower end of the leg and pull out the cork cap and the cork together as a unit by holding the head without spoiling the sealing property even when there is a scattering in the inner diameter of the bottle opening. CONSTITUTION:Several slits 8 are provided at the lower end of the leg of a cork cap. When the inner diameter of the bottle opening 5 is large within the range of scattering, the slits 8 are widened by the expansive force of the cork 4. The expansible volume of the cork 4 and the close contact area of the cork against the inner peripheral face of the bottle opening 5 are increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cork stopper cap which is pushed into a bottle mouth while being integrated with a cork stopper.

[0002]

2. Description of the Related Art In order to open a corkscrew in a bottle containing wine that is sealed with a corkscrew without opening a screw-type corkscrew, the applicant of the present invention relates to a corkscrew cap as shown in FIG. A utility model registration application has been filed and already registered (see Japanese Utility Model Publication No. 4-27836).

The above-mentioned cork stopper cap comprises a head 1 and a thin leg portion 2 which is integrally and concentrically provided at the lower end thereof.
Through holes 3 are provided in the head 1 and the legs 2,
The total length of the head 1 and the legs 2 combined is formed shorter than the cork stopper 4.

After inserting the leg portion 2 of the cork stopper cap into the inner diameter surface of the bottle mouth portion 5, the cork stopper 4 is stoppered.
The portion of the cork stopper 4 projecting downward from the lower end of the leg portion 2 strongly adheres to the inner peripheral surface of the bottle mouth portion 5 and performs a sealing action. Since the frictional force to the inner peripheral surface of the through hole 3 is set to be larger than the frictional force to the inner diameter surface of the bottle mouth portion 5 of the cork stopper 4, when the head portion 1 is grasped and pulled out, The cork stopper 4 can be pulled out from the bottle mouth portion 5 together with the cork stopper cap. In this way, the cork stopper 4 can be removed without removing the original sealing function of the cork stopper 4, which is very convenient.

[0005]

However, since there is some variation in the inner diameter of the bottle mouth portion, the above-mentioned coil stopper cap has a variation in the sealing force depending on the inner diameter of the bottle mouth portion. May occur and the sealing force may be insufficient in some cases.

Therefore, an object of the present invention is to further improve the above-mentioned coil stopper cap so that a sealing force above a certain level can be secured even if there are variations in the inner diameter of the bottle mouth portion.

[0007]

In order to solve the above-mentioned problems, the present invention provides a head having an outer diameter larger than the inner diameter of the bottle mouth portion and a leg having an outer diameter adapted to the inner diameter of the bottle mouth portion. The parts are provided concentrically, the total length of the head and legs is shorter than the length of the cork stopper, and the head and legs are formed with a through hole into which the cork stopper is press-fitted. A part of the cork stopper protruding from the lower end is made to be in close contact with the inner wall of the bottle mouth part.In the cork stopper cap, the lower end of the leg part is provided with vertical slits of a required length at several positions. is there.

On the extension line of the above slit, the required length V
It is also possible to have a configuration in which a groove is formed.

Further, in the case of a bottle with a cork stopper, the cork stopper cap is fitted in the bottle mouth portion, and the frictional force of the cork stopper with respect to the inner peripheral wall of the through hole of the cork stopper cap is greater than the frictional force with respect to the inner peripheral wall of the bottle mouth portion. The cork stopper is configured to be plugged over the through hole and the inner peripheral wall of the bottle mouth portion so as to be large.

[0010]

The above cork stopper cap is formed such that the outer diameter of the leg portion thereof is adapted to the smallest inner diameter within the range of the variation of the inner diameter of the bottle mouth. Then, the cork stopper cap can be attached to all bottles having an inner diameter larger than this within the range of variation.

When the cork stopper is stoppered, the cork stopper protruding from the lower end of the leg portion expands and is pressed against the inner peripheral surface of the bottle mouth portion. At this time, when the inner diameter of the bottle mouth portion is large within the range of variation, the cork stopper expands by expanding the slit of the leg portion when expanding. For this reason, the volume of the inflatable portion of the cork stopper increases and the contact area with the inner peripheral surface of the bottle mouth portion increases, so that the sealing force increases. This makes it possible to compensate for the lack of pressing force due to the large inner diameter of the bottle mouth portion by increasing the sealing force.

[0012]

EXAMPLE The cork stopper cap of the example shown in FIG.
It is an integrally molded plastic product, and comprises an annular head portion 1 and a cylindrical leg portion 2 formed at one end thereof.

The outer diameter of the head portion 1 is equal to the outer diameter of the bottle mouth portion 5 (see FIG. 2), but is formed slightly larger than this, and the inner diameter surface of the head portion 1 has a through hole common to the inner diameter surface of the leg portion 2. 3 is provided.

The through hole 3 of the head 1 has a tapered upper end with a large diameter, and the lower end has a diameter of the through hole 3 of the leg 2.
Match the inner diameter of the part.

The leg portion 2 is formed to be as thin as possible, and at the lower end thereof, a thin portion 6 whose inner diameter surface expands downward is formed. A vertical V-shaped groove 7 is formed on the outer peripheral surface of the thin-walled portion 6 at eight equally spaced positions (see FIG. 2), and a slit 8 is provided in the groove bottom of the lower half of the V-shaped groove 7. (See FIGS. 3 and 4).

Further, a mountain-shaped rib 9 is provided at the same position as the V-shaped groove 7 on the inner diameter surface of the through hole 3 (see FIGS. 1 and 3). The lower end of the rib 9 does not reach the thin portion 6 and is provided at a higher position than that.

The reason why the through hole 3 in the head portion 1 is tapered is to guide the insertion of the cork plug 4 (see FIG. 2). Further, the ribs 9 increase the frictional force with respect to the inner diameter surface of the through hole 3 of the cork stopper 4.

The cork stopper cap of the embodiment is as described above, and the outer diameter of the leg portion 2 is determined according to the smallest one within the range of variation in the inner diameter of the bottle mouth portion 5.

Now, assuming that the cork stopper 4 is applied to the bottle mouth portion 5 of the smallest size, the leg portion 2 of the cork stopper cap fits the inner diameter of the bottle mouth portion 5 as shown in FIG. 2 (a). fit. When the cork stopper 4 is plugged into the through hole 3, the cork stopper 4 slightly expands when it comes out from the lower end of the leg portion 2 and comes into close contact with the inner peripheral surface, and exerts a required sealing force. The contact range in this case is indicated by the symbol A.

Next, in the case of the bottle mouth portion 5 which is the largest within the range of variation, as shown in FIG. 2B, the leg portion 2 and the bottle mouth portion 5 are formed.
There is a gap between the inner surface and the inner surface, but when the cork stopper 4 is plugged, the slit 8 expands due to the expansion of the cork stopper 4 and the V-shaped groove 7 on the slit 8 also ruptures and expands in some cases. Open.

Therefore, the contact starting point of the coil stopper 4 with respect to the inner peripheral surface of the bottle mouth portion 5 rises. That is, as shown in FIG. 2C, when the slit 8 is absent or closed, the contact starting point of the cork stopper 4 is a ₁ , whereas when the slit 8 is present and the slit 8 is expanded. Becomes a ₂ , and when the V-shaped groove 7 is further expanded, it becomes a ₃ .

As described above, the contact start point is increased to increase the volume of the inflatable portion of the cork stopper 4 and the contact range of the bottle mouth portion 5 with respect to the inner peripheral surface is increased as A _{1 to} A _3. To do.

When the inner diameter of the bottle mouth portion 5 is large within the range of the variation, the pressing force of the cork stopper 4 decreases and the sealing force decreases, but as the variation increases, it expands. Since the possible volume and the close contact range are increased, it is possible to compensate for the decrease in the sealing force and to exhibit the sealing force equivalent to the case where the variation is small.

Next, another embodiment shown in FIGS. 5 to 7 is used when the screw groove 10 is provided on the outer peripheral surface of the bottle mouth portion 5. In the cork stopper cap in this case, an outer cylinder portion 11 having an inner diameter larger by the thickness of the bottle mouth portion 5 is integrally provided around the leg portion 2 at the lower end of the head portion 1, and a screw 12 is formed on the inner diameter surface thereof. are doing.

A step 17 is formed on the outer peripheral surface of the head 1, and an annular member 13 is fitted in the step 17, and a rib 14 provided in the annular member 13 and a fitting groove 15 provided in the head 1. It is forcibly fitted. The annular member 13 displays a trademark or the like on its outer surface.

The annular member 13 may be omitted, and this portion may be integrally formed with the head 1.

The construction of the leg portion 2 and the construction of the V-shaped groove 7 and the slit 8 formed therein are the same as those described above. A rib 9 is provided in the through hole 3 in the head portion 1.

In the above case, the actions of the V-shaped groove 7 and the slit 8 are the same as in the above-mentioned case, but the bottle having the thread groove 10 in the bottle mouth portion 5 has a lower portion of the bottle mouth portion 5 as shown in FIG. Since the inner peripheral surface has the reduced diameter portion 16 and the cork plug 4 is pressed by the reduced diameter portion 16, the sealing force is further increased.

[0029]

As described above, in the invention relating to the cork stopper cap of the present application and the invention relating to the bottle with a cork stopper using the same, the slits of the required length are provided at several places at the lower ends of the legs. Even if there are variations in the inner diameter of the bottle mouth, the above-mentioned slit opens and expands according to the size of the variation, so the sealing force increases and the pressing force on the inner surface of the bottle mouth of the cork stopper is insufficient. It is possible to make a reliable seal.

Further, in the case where the V-shaped groove is provided on the extension line of the slit, the expansion of the slit is dealt with in the range where the variation is small, and when the variation is large, the V-shaped groove is ruptured so as to be expanded. It can be dealt with by increasing the degree.

[Brief description of drawings]

1 is a cross-sectional view of an embodiment of a cork cap.

[FIG. 2] (a) Sectional view of the above usage state (b) Sectional view of the above usage state (c) Partially enlarged sectional view of the above usage state

FIG. 3 is an enlarged cross-sectional view, partly omitted, of the above.

4A is an enlarged cross-sectional view of the position of line XX in FIG. 3; FIG. 4B is an enlarged cross-sectional view of the position of line YY of FIG. 3;

FIG. 5 is a sectional view of another embodiment of the cork stopper cap.

FIG. 6 is a perspective sectional view of the above.

FIG. 7 is a cross-sectional view of the same use condition as above.

FIG. 8 is a sectional view of a conventional example in use.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head part 2 Leg part 3 Through hole 4 Cork stopper 5 Bottle mouth part 6 Thin part 7 V-shaped groove 8 Slit 9 Rib 10 Screw groove 11 Outer cylinder part 12 Screw 13 Annular member 14 Rib 15 Fitting groove 16 Reduced diameter part 17 Step

Claims (3)

[Claims] 1. A head having an outer diameter larger than the inner diameter of the bottle mouth portion is concentrically provided with legs having an outer diameter adapted to the inner diameter of the bottle mouth portion, and the total length of the head portion and the leg portions. Is formed to be shorter than the length of the cork stopper, and a through hole into which the cork stopper is press fitted is formed in the head portion and the leg portion, and a part of the cork stopper protruding from the lower end of the leg portion is brought into close contact with the inner wall of the bottle mouth portion. In the cork stopper cap, the cork stopper cap is characterized in that a plurality of vertical slits having a required length are provided at the lower end of the leg portion at several positions. 2. A V of a required length is provided on an extension line of the slit.
The cork stopper cap according to claim 1, wherein a groove is formed. 3. The cork stopper cap according to claim 1 or 2 is fitted into the bottle mouth portion, and the friction force of the cork stopper with respect to the inner peripheral wall of the through hole of the cork stopper cap is larger than the friction force with respect to the inner peripheral wall of the bottle mouth portion. A bottle with a cork stopper, wherein a cork stopper is capped over the through hole and the inner peripheral wall of the bottle mouth.