JP2010137907A - Beverage can - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a beverage can which enables the content to flow out of a drink opening almost all without causing the content to remain in the can. <P>SOLUTION: The beverage can 1 is composed of a cylindrical can body part 2 and a can lid part 3 disposed to close an open end thereof. The can lid part 3 has a projecting part 31 projecting outside of a part 4 bonded with the can body part 2 in the axial direction. The projecting part 31 is composed of: an inclined surface part 311 which is inclined so as to be closer to the can central axis 5 from the bonding part 4 to the outside in the axial direction; and a distal end flat surface part 312 which is continuous from the distal end of the inclined surface part 311 and is composed of a flat surface orthogonal to the can central axis. In the distal end flat surface part 312, the drink opening 32 which is opened is formed so as to reach a part 313 which is a boundary with the inclined surface part 311. The inclined surface part 311 is preferably provided in a tapered manner on the entire circumference of the projecting part 31. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a beverage can that is sealed with a beverage such as tea, juice, or coffee.

  Generally, beverage cans are made of aluminum or steel. The beverage can is sealed by injecting a beverage into a cylindrical can body having an opening at one end, and then providing a can lid so as to close the open end of the can body.

And there exists a drink can of the system which pulls the tab attached to the upper surface of the can lid part by hand, and provides an opening part in a drink can.
In this type of beverage can, a substantially elliptical cut line (score) is formed at a portion that becomes an opening of the can lid, and an opening tab is attached via a rivet at the center of the can lid. And when you pinch the outer end of the tab with your finger and raise it, the pressing part located on the opposite side of the fulcrum consisting of the rivet part presses the part inside the cutting line of the can lid part, and the inside of the cutting line is cut off It is configured to be immersed in the can to form an opening.
In addition, there exists patent document 1 as a prior art regarding such a drink can, for example.

JP 2003-40264 A

  By the way, in the conventional beverage can, the score line which becomes the said opening part is formed in the inner part from the junction part of the said can lid part and a can trunk | drum part, and is provided in several mm. Therefore, there is a problem that the contents always remain inside the beverage can even if the beverage can is inclined and all the contents are caused to flow out from the drinking mouth provided in the can lid portion.

  This invention is made | formed in view of this conventional problem, Comprising: It aims at providing the drink can which can be made to flow out from a drinking mouth, without leaving the contents almost inside a can.

The present invention, in a beverage can comprising a cylindrical can body portion and a can lid portion disposed so as to close the open end thereof,
The can lid part has a protruding part protruding outward in the axial direction from the joint part with the can body part,
The projecting portion is a tip plane comprising an inclined surface portion that is inclined so as to approach the can center axis as it goes axially outward from the joint portion, and a flat surface that is continuous with the tip of the inclined surface portion and orthogonal to the can center axis. And having a part
In the beverage can characterized in that a drinking mouth that can be opened is formed in the tip flat portion so as to reach the boundary with the inclined surface portion (Claim 1).

  The noteworthy point of the beverage can of the present invention is that the can lid portion is provided with a protruding portion having the specific shape, and the drinking mouth is formed at a position more than the junction between the can lid portion and the can body portion. It exists in the point provided in the upper direction and further extending over the said boundary part of the said protrusion part.

  That is, by providing the inclined surface portion on the protruding portion, the contents can be smoothly flowed toward the drinking mouth when the entire can is inclined and the contents flow out from the drinking mouth. Further, by providing the drinking mouth formed in the tip flat portion so as to reach the boundary portion, it is possible to eliminate the portion where the content transmitted through the inclined surface is accumulated, and the content remains in the beverage can. Can be prevented.

  Thus, according to this invention, the drink can which can be made to flow out from a drinking mouth can be provided, leaving the contents almost inside a can.

As described above, the beverage can of the present invention comprises a cylindrical can body and a can lid disposed at the open end.
The beverage can is preferably a metal beverage can made of an aluminum material, a steel material, or the like.

  Further, from the viewpoint of the strength of the can lid part and ease of drinking, the height of the protruding part in the can lid part is preferably 10 to 30 mm from the joint part between the can lid part and the can body part. . Moreover, it is preferable that the angle which the said inclined surface part and the said front end plane part make is 95-135 degrees.

In addition, a drinking mouth that can be opened so as to reach a boundary portion with the inclined surface portion is formed in the tip flat surface portion. If the drinking mouth does not reach the boundary, the contents may remain inside the can.
In addition, the said drinking mouth should just reach the said boundary part, and also may extend to the said inclined surface part.

In the beverage can, it is preferable that the inclined surface portion is provided in a tapered shape on the entire circumference of the protruding portion.
In this case, strength and stability can be obtained, and processing is also easy.

  And in the said drink can, it is preferable that the said drinking mouth is formed in the substantially elliptical shape, and it is preferable that the tab for opening is attached through the rivet part of the said can lid center part. In this case, the tab acts as a lever with the rivet portion as a fulcrum, and when the outer end portion of the tab is pinched with a finger, the pressing portion located on the opposite side of the fulcrum formed by the rivet portion can The portion inside the drinking mouth of the lid portion is pressed, the drinking mouth portion is separated from the can lid portion, the vicinity of the rivet portion is folded, and the separated portion is immersed in the beverage can to form an opening. It can be configured.

Moreover, a well-known method is applicable to manufacturing the drink can of the said structure.
For example, the can body is formed by punching an aluminum plate or a steel plate into a disk shape, deep drawing, DI molding, opening end trimming, cleaning, painting / baking, opening necking / flange processing, etc. be able to.

  Further, when forming the can lid portion, an aluminum plate material or a steel plate material is punched out at the same time, and at the same time, a molding process (shell press) is performed to form a step, a curl or the like for covering the protruding portion and the can body portion. . Then, a compound is applied to the inside of the curl, and then rivet molding is performed to attach a tab as a trigger. And a can mouth part can be obtained by forming a drinking mouth that can be opened by forming a score line (score) by pressing, and by integrating a tab.

  Further, the can lid portion and the can body portion are joined by tying a curl obtained by bending the outer periphery of the can lid portion into a predetermined form from the outside of the flange formed at the opening end of the can body portion. It can carry out by double winding tightening which winds up so that it may crimp further from the outside. Further, the sealing property of the beverage can can be maintained by the interposition of the compound applied inside the curl portion of the can lid portion.

Example 1
This example demonstrates the drink can concerning the Example of this invention using FIGS. 1-3.
As shown in FIGS. 1 to 3, the beverage can 1 of this example includes a cylindrical can body portion 2 and a can lid portion 3 disposed so as to close the opening end thereof.

In the beverage can 1, the can lid portion 3 has a protruding portion 31 that protrudes outward in the axial direction from the joint portion 4 with the can body portion 2. In addition, the protrusion 31 has an inclined surface portion 311 which is inclined so as to approach the can center shaft 5 as it goes outward in the axial direction from the joint portion 4, and is connected to the tip of the inclined surface portion 311 and is orthogonal to the can center axis 5. And a tip flat surface portion 312 made of a flat surface.
Further, the tip flat surface portion 312 is formed with a substantially elliptical drinking mouth 32 that can be opened so as to reach the boundary portion 313 with the inclined surface portion 311.

  Further, the outline portion of the drinking mouth 32 is partitioned by a cut line 321 (score). An opening tab 33 is attached via a rivet portion 34 at the center of the can lid 3. Then, when the outer end 331 of the tab 33 is pinched with a finger and raised, the pressing portion 332 located on the opposite side of the fulcrum formed by the rivet portion 34 presses the portion in the drinking mouth 32 of the can lid portion 3, A part of the drinking mouth 32 is cut off from the can lid portion 3 and is immersed in the beverage can 1 to form an opening.

Further, the inclined surface portion 311 is tapered on the entire circumference of the protruding portion 31 so that the angle θ formed by the inclined surface portion 311 and the tip flat surface portion 312 is 95 to 135 ° (110 ° in this example). It is provided in the shape.
Further, the height H of the protruding portion 31 is 10 to 30 mm (15 mm in this example) from the joint portion between the can lid portion 3 and the can body portion 2.

  Moreover, the manufacturing method of the drink can 1 of this example can apply the same method as the former except changing the protrusion shape of the can lid part 3. FIG.

  As described above, in the beverage can 1 of the present example, the can lid portion 3 is provided with the protruding portion 31 having the specific shape, and the forming position of the drinking mouth 32 is set to the can lid portion 3 and the can body portion 2. It is provided above the joint portion 4 and further to extend to the boundary portion 313 of the protruding portion 31. Therefore, when the beverage can 1 is tilted to allow the contents to flow out of the drinking mouth, the contents can be smoothly flowed toward the drinking mouth 32 due to the presence of the inclined surface portion 311 provided in the protruding portion 31. . Further, by providing the drinking mouth 32 so as to extend to the boundary portion 313, a portion where the contents are accumulated can be eliminated, and the contents can be prevented from remaining in the beverage can 1.

  Thus, according to this invention, the drink can which can be made to flow out from a drinking mouth can be provided, leaving the contents almost inside a can.

Explanatory drawing which shows the drink can in Example 1. FIG. Sectional drawing which shows the drink can in Example 1. FIG. The top view which shows the drink can in Example 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drink can 2 Can body part 3 Can lid part 31 Projection part 311 Inclined surface part 312 Tip flat part 313 Boundary part 32 Drinking mouth 4 Joint part 5 Can center axis

Claims (2)

In a beverage can comprising a cylindrical can body portion and a can lid portion disposed so as to close the opening end thereof,
The can lid part has a protruding part protruding outward in the axial direction from the joint part with the can body part,
The projecting portion is a tip plane comprising an inclined surface portion that is inclined so as to approach the can center axis as it goes axially outward from the joint portion, and a flat surface that is continuous with the tip of the inclined surface portion and orthogonal to the can center axis. And having a part
A beverage can characterized in that a drinking mouth that can be opened so as to reach a boundary portion with the inclined surface portion is formed in the tip flat surface portion.   The beverage can according to claim 1, wherein the inclined surface portion is provided in a tapered shape on the entire circumference of the protruding portion.

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