JP3170574B2 - Beverage can cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage can filled with a beverage such as a soft drink or a beer, and more particularly to a beverage can having a pull-top-type opening portion, in which the beverage remains. The present invention relates to a beverage can cap capable of holding the beverage while preventing the beverage from spilling.

[0002]

2. Description of the Related Art Conventionally, beverages such as soft drinks and beer are filled in cans, and a pull-top type opening portion provided on a can lid is opened to take out the beverage inside. .

[0003]

By the way, in such a beverage can, there is no means for closing the opening after the opening of the pull-top opening.
If the beverage can is knocked down while the beverage remains inside, the remaining beverage will be spilled.Therefore, it is necessary to maintain the posture so that the opening portion is upward until all of the beverage is taken out. Yes, it is necessary to select a stable position and place a beverage can, or a special holding tool is required in a moving body such as a car, or the user needs to hold it until all the beverage is taken out There is.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems. Even if a beverage can falls down in a state where the beverage remains, the beverage is prevented from spilling, and the beverage can be reused. It is an object of the present invention to provide a beverage can cap that can be smoothly used.

[0005]

In order to achieve the above-mentioned object, a beverage can cap according to the first aspect of the present invention is mounted on a pull-top type beverage can by covering a can lid mounting portion.
And a liquid-tight cap for the can lid.
A bottomed cylindrical base to be fitted in a state, and a top plate of the base
At a position offset from the center of the base in the outer peripheral direction.
Elastic Deformation of a Spherical Shell Facing the Pull Top of a Can
A possible bulge is formed, and the center of the bulge is flat
At the center and outward
Beverage gas that is protruded and communicated with the inside of the base.
An id cylinder is provided, and the base, the bulging portion, and the beverage gas are provided.
The id cylinder is integrally formed of elastic material
On the surface of the bulging portion, a plurality of annular concave grooves are concentric.
And the bulging portion projects outward from the base.
Position and a position stored inside the base.
When the beverage guide cylinder is deformed into a flat shape, the inner surfaces of the beverage guide cylinder are fitted to each other, so that the opposed wall surfaces of the beverage guide cylinder are brought into close contact with each other. , And a fastener for closing the beverage guide cylinder in a liquid-tight state is formed. The beverage can cap according to claim 2 of the present invention is
2. The top plate portion according to claim 1, wherein the top plate portion is separated from the beverage guide cylinder.
A check that introduces gas from outside to inside the substrate
A valve is provided. The beverage can cap according to claim 3 of the present invention is the beverage can cap according to claim 2.
The check valve forms a thin portion in the base,
Curve the thin part toward the inside of the base, and
It is constituted by providing notches in the part
It is characterized by. The beverage can container according to claim 4 of the present invention.
The tip according to any one of claims 1 to 3,
On the inner peripheral surface of the base, engaged with the can lid mounting portion of the beverage can,
A stopper for preventing the base from coming off the beverage can
The projection is provided. The beverage can cap according to claim 5 of the present invention is the same as the beverage can cap according to claim 4.
The retaining projection is provided over the entire inner peripheral surface of the base.
It is characterized by having been done .

[0006]

[0007]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the beverage can cap according to the present embodiment is a beverage can cap 2 that is attached to a beverage can 1 containing a beverage (not shown) so as to cover the can lid attachment portion 1a. A bottomed cylindrical base 3 which is fitted in a liquid-tight manner to the can lid mounting portion 1a, and is projected outward from a top plate 3a of the base 3 and communicates with the inside of the base 3 And the beverage guide cylinder 4 is provided, and the base 3 and the beverage guide cylinder 4 are integrally formed,
The beverage guide cylinder 4 formed of an elastic material and
As shown in FIGS. 2, 4 and 5, when the beverage guide cylinder 4 is deformed into a flat shape, the beverage guide cylinder 4 is opposed to the inner surface of the It has a basic configuration in which a fastener 5 that closes the beverage guide cylinder 4 in a liquid-tight state while holding the wall surface in close contact is formed.

[0008] To explain these details, the beverage can cap 2 of the present embodiment is integrally formed of an elastic synthetic resin such as polychlorinated biphenyl, and the inner diameter of the base 3 is The inner peripheral surface of the base 3 is dimensioned so as to be in close contact with the outer peripheral surface of the can lid mounting portion 1a of the beverage can 1 over the entire circumference.
The base 3 is provided at a position deviated from the center of the base 3 toward the outer peripheral side, and has a flat cross-sectional shape as shown in FIG. 2.
Is formed, and a fastener 5 is formed on the other surface, and the groove 5 in which the ridge 5a is fitted airtightly is formed.
b is formed.

In this embodiment, a substantially spherical shell-like elastically deformable bulging portion 6 is provided on the top plate 3a of the base 3.
The beverage guide cylinder 4 is provided at the center of the bulging portion 6, and the bulging portion 6 protrudes outward from the base 3 (the position shown by a solid line in FIG. 4). Position 2 (the position shown by a chain line in FIG. 4)
The position is elastically deformable. On the outer peripheral surface of the bulging portion 6, a plurality of annular concave grooves 7 centering on the beverage guide cylinder 4 are formed concentrically. Such deformation can be easily performed.

In this embodiment, the top plate 3a is located at a position separated from the beverage guide cylinder 4 (in the illustrated example, a position symmetrical with respect to the center of the base 3). A check valve 8 for introducing the base from the outside to the inside is provided, and the base 3 is engaged with the can lid mounting portion 1a of the beverage can 1 on the inner peripheral surface of the base 3 so that the base 3 As shown in FIG. 4 and FIG. 5, a retaining projection 9 for preventing the detachment from coming off is provided. This retaining projection 9
Are provided at intervals in the circumferential direction of the base 3, or are provided continuously over the entire circumference. When the retaining projections 9 are provided continuously over the entire circumference, the retaining canisters 9 are brought into contact with the lower end of the can lid mounting portion of the beverage can 1 so that the beverage can 1 and the base 3 can be connected to each other. Is improved in liquid tightness. Further, in the present embodiment, the check valve 8 forms a thin portion in the base 3, curves the thin portion toward the inside of the base, and provides a cut in the thin portion. It is configured. By adopting such a configuration, for example, when the beverage can cap 2 is formed, the check valve 8 can be formed on the base 3 at the same time. When the outside air flows into the base 3, the cut is easily separated and the introduction of the outside air is smoothly performed, and when the beverage comes into contact with the check valve 8 from the inside of the base 3, the thin portion is removed. By being elastically deformed so as to close the cut portion, leakage of the beverage is prevented.

In FIG. 3, reference numeral 10 denotes a pull-top-type opening portion provided on the can lid of the beverage can 1.

In the beverage can cap 2 according to the present embodiment having the above-described configuration, for example, when the unsealing portion 10 is opened, as shown in FIGS. Of the base 3
Is attached to the beverage can 1 by engaging the retaining projection 9 provided on the can lid mounting portion 1a. As a result, the inner peripheral portion of the beverage can cap 2 is brought into close contact with the outer peripheral surface of the can lid mounting portion 1a of the beverage can 1 over the entire circumference, and the retaining can 9 prevents the beverage can cap 2 from being detached. Is prevented. Here, the beverage can 1 of the beverage can cap 2
At the time of attachment, the beverage guide cylinder 4 is attached so as to be opposed to the upper side of the opening portion 10.

When drinking or pouring a beverage, the beverage guide tube 4 is pinched and pulled to cause the bulging portion 6 to protrude from the base 3 while being elastically deformed. As shown in FIG. 1 and FIG. Thus, by removing the fastener 5 by, for example, applying a force to the beverage guide cylinder 4 so as to approach both ends in the flat direction, the beverage guide 4 is brought into an open state as shown in FIGS. I do. By such an operation, the inside of the beverage can 1 is communicated with the outside via the opening portion 10, the inside of the base 3, the bulging portion 6, and the beverage guide tube 4, and through the beverage guide tube 4. The beverage in the beverage can 1 can be poured outside. At this time, outside air flows into the base 3 from the beverage guide tube 4 instead of the beverage flowing out from the beverage guide tube 4, and the outside air is further released by the opening portion 10.
Of the beverage by flowing into the beverage can 1 via the.

On the other hand, in the present embodiment, even if the portion from the inside of the beverage can 1 to the beverage guide cylinder 4 is filled with the beverage, and it is difficult to introduce outside air from the beverage guide cylinder 4, By the action of the check valve 8, the check valve 8
Since the outside air is introduced into the base 3 in a state in which the leakage of the beverage from the beverage is prevented, the outflow of the beverage from the beverage guide cylinder 4 is not hindered.

When the pouring is interrupted during use, the fastener 5 is closed by applying a force to the beverage guide cylinder 4 so that the opposite sides thereof come into contact with each other, as shown in FIG. Then, the distal end portion of the beverage guide cylinder 4 is closed in a liquid-tight state. Thereby, since the outflow path of the beverage is sealed, the beverage does not leak even when the beverage can 1 is tilted or falls.

In the case where the pouring is interrupted or the like, when the beverage guide cylinder 4 is pushed into the base 3 with the beverage guide cylinder 4 sealed, as shown by a chain line in FIG. The projecting portion 6 is formed by the elastic deformation of the base 3.
Of the beverage guide cylinder 4
The projecting amount of the space is kept small, and the storage space is kept small. In addition, in a state where the beverage guide cylinder 4 is housed inside the base 3, it is also effective when the beverage can cap 2 is housed alone.

On the other hand, in this embodiment, a plurality of annular concave grooves 7 are provided concentrically on the bulging portion 6,
The bulging portion 6 is easily deformed, so that the beverage guide tube 4 can be smoothly projected and stored as described above.

It should be noted that the various shapes, dimensions, and the like of the constituent members shown in the above-described embodiment are merely examples, and can be variously changed based on the shape and design requirements of the beverage can to which the present invention is applied.

[0019]

As described above, according to the first aspect of the present invention,
According to the beverage can cap according to any one of claims 6 to 6, after opening the opening portion provided on the can lid of the beverage can, the beverage can cap is provided so as to cover the can lid mounting portion of the beverage can. By attaching the cap and closing the fastener of the beverage guide cylinder provided on the beverage can cap, the can lid mounting portion of the beverage can is sealed, and even if the beverage spills out of the lid via the opening portion. It is possible to prevent the beverage can cap from leaking to the outside, and at the time of use, by opening the fastener of the beverage guide cylinder provided in the beverage can cap, the beverage can be passed through the beverage guide cylinder. Can be taken out. In addition, since the beverage guide cylinder is provided so as to protrude outside the base, the beverage guide cylinder functions as a straw when directly drinking a beverage, thereby facilitating swallowing. Here, as in the invention of claim 2, the beverage guide cylinder is provided so as to be deviated from the center of the base toward the outer peripheral side, so that the beverage flowing between the lid and the base is smoothly transferred to the beverage guide cylinder. Can lead
The amount of beverage remaining inside can be minimized. Further, as in the invention according to claim 3, a substantially spherical shell-like elastically deformable bulging portion is formed on the top plate portion of the beverage can cap, and the beverage guide is provided at a central portion of the bulging portion. By providing a cylinder and elastically deforming the bulging portion to two positions, a position protruding outward from the base and a position stored inside the base, for example, when not in use, The swollen portion is housed inside the base, and the beverage guide cylinder provided in the swollen portion is moved to the inside of the base, thereby reducing the amount of protrusion of the beverage guide tube from the base. , The unnecessary protruding part when not in use can be reduced, and the storage space can be reduced.
By projecting the bulging portion to the outside of the base, the beverage guide tube can be projected to the outside of the base to facilitate taking out or pouring of the beverage. Further, as in the invention according to claim 4, when the beverage is taken out by providing a check valve for introducing the base from the outside to the inside of the base at a position of the top plate portion separated from the beverage guide cylinder. In addition, by introducing external air from the check valve between the beverage can cap and the beverage can, it is possible to facilitate the outflow of the beverage from the beverage guide cylinder. Moreover, when the beverage guide cylinder is closed and the beverage remains between the beverage can cap and the beverage can, even if the beverage moves to the check valve side, the beverage leaks from this check valve. Never. Here, as in the invention according to claim 5, the check valve forms a thin portion in the base, curves the thin portion toward the inside of the base, and cuts the thin portion. By providing by providing, when the gas is introduced from the outside, the thin portion is easily opened at the cut portion, and when the gas or beverage flows from the inside of the base to the outside, due to its curvature,
When the thin portions are pressed so as to be in contact with each other at the cut portions, the cut portions are closed, thereby preventing the beverage from leaking, and realizing the leak prevention with a simple configuration. it can. Then, as in the invention as set forth in claim 6, the retaining projection provided on the inner peripheral surface of the base is engaged with the can lid mounting portion of the beverage can to prevent the beverage can cap from being detached, and Claim 7 can prevent spillage more reliably.
By providing the retaining projections over the entire inner peripheral surface of the base as in the invention described in (1), the above-mentioned retaining of the beverage can cap can be further reliably prevented. The liquid tightness between the beverage can cap and the beverage can can be enhanced by ensuring the contact with the beverage can.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a plan view showing an embodiment of the present invention.

FIG. 4 is a sectional view showing an embodiment of the present invention.

FIG. 5 is a sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Beverage can 1a Can lid attachment part 2 Beverage can cap 3 Base 3a Top plate part 4 Beverage guide cylinder 5 Fastener 6 Swelling part 7 Depression groove 8 Retaining projection 9 Opening part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 39/00 B65D 55/16

Claims (5)

(57) [Claims] Claims: 1. A pull-top type beverage can is covered with a can lid mounting portion.
The beverage can cap, wherein the can lid
A cylindrical base with a bottom fitted to the attachment portion in a liquid-tight state;
A position on the top of the body that is offset from the center of the base toward the outer periphery
A substantially spherical shell shape facing the pull top of the beverage can
An elastically deformable bulge is formed at the center of the bulge.
The part is formed in a flat plate shape, and in this central part,
Projecting outward and communicating with the inside of the base
Beverage guide tube is provided, the base, bulging portion, and
And the beverage guide cylinder is formed integrally with the elastic material
And a plurality of annular recesses on the surface of the bulging portion.
A groove is formed concentrically, and this bulge is outside the base.
And a position to be stored inside the base.
When the beverage guide cylinder is deformed into a flat shape, the beverage guide cylinder is opposed to the inner surface of the beverage guide cylinder by being fitted to each other. A beverage can cap, wherein a fastener for holding a wall surface in close contact and closing a beverage guide cylinder in a liquid-tight state is formed. 2. The top plate section is separated from the beverage guide cylinder.
A check that introduces gas from outside to inside the substrate
The valve according to claim 1, wherein a valve is provided.
Beverage can cap. 3. A check valve according to claim 3, wherein said check valve forms a thin portion on said base.
The thin part is bent toward the inside of the base.
And by making a cut in this thin part
The beverage according to claim 2, wherein the beverage is configured.
Cap for cans. 4. The can lid of the beverage can on an inner peripheral surface of the base.
The base is detached from the beverage can by engaging with the mounting portion.
It is characterized by having a retaining projection to prevent
The beverage can according to any one of claims 1 to 3,
cap. 5. The retaining projection according to claim 1, wherein the retaining projection is formed on the entire inner peripheral surface of the base.
5. The device according to claim 4, wherein the device is provided over the circumference.
The cap for beverage cans according to the above .