JP2006089057A - Glass-like can container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a can container capable of obtaining a stylish appearance similar to a wine glass or a champagne glass, sealing contents like a normal can, and being easily manufactured through the use of an existing can-making line. <P>SOLUTION: The glass-like can container consists of a metallic can body 2, a can lid 3 and a synthetic resin leg member 4. The metallic can body 2 is formed by molding a bottom side of a bottomed cylindrical can including a cylindrical barrel and a bottom integrally molded with its lower end into a slope 22 tapered downward and a small-diameter bottomed tube (a small-diameter tube 23 and a bottom 24) extending downward from the lower end of the slope 22. The synthetic resin leg member 4 includes a pedestal 42 integrally molded with the lower end of a tube 41. The bottomed tube (the small-diameter tube 23 and the bottom 24) of the can body 2 is fitted from above into the tube 41 of the leg member 4 to be integrally coupled, and the can lid 3 is wound and fixed to hermetically seal the upper end opening of the can body 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a glass-like canning container that has an appearance similar to that of a wine glass or champagne glass as a whole, and that can completely seal the contents as a can.

In the field of canned beverages made of metal cans, for example, the cylindrical shape of the can body can be deformed by partially expanding or reducing its diameter, etc. Conventionally, it has been attempted to expand the sales of products by attracting consumers' eyes by the appearance of the container. On the other hand, as a beverage container having an appearance similar to a wine glass of tableware as a whole, a resin container is composed of a resin container body and a leg, and the bottom of the container body is fitted to the leg. It is conventionally known from Patent Document 1 below.
No. 7-25312

  By the way, about the conventionally well-known wine glass-like resin container as mentioned above, although the appearance with a stylish taste is obtained, compared with the metal can container currently used by canning, the drink used as the contents There is a problem that the storage period is short due to restrictions on storage. On the other hand, when the shape of the metal can container used for canning is different from the usual shape, there is a problem that a dedicated can manufacturing line is required.

  The present invention has an object to solve the above-mentioned problems. Specifically, for canned containers, it is possible to obtain a stylish appearance similar to wine glasses and champagne glasses. Similarly, it is an object of the present invention to be able to seal the contents and to easily manufacture the contents using an existing can manufacturing line.

  In order to solve the above-described problems, the present invention is a canning container that has an appearance similar to that of a glass of tableware as a whole and that can be used to make contents in a metal can portion. The bottom of the bottomed cylindrical can, which is made of a metal can body, a can lid, and a leg member made of a synthetic resin, the bottom of which is integrally formed at the lower end of the cylindrical body, is directed downward. It is formed into an inclined part that is tapered toward the taper and a bottomed cylindrical part with a small diameter that extends downward from the lower end of the inclined part, and a leg member made of synthetic resin is a pedestal at the lower end of the cylindrical part The bottomed cylindrical portion of the can body is fitted into the cylindrical portion of the leg member from above so that they are integrally coupled, and the upper end opening of the can body is sealed. As described above, the can lid is wound and fixed.

  According to the can container of the present invention as described above, it is possible to obtain a stylish appearance similar to a wine glass or champagne glass as a whole by combining a metal can body and a synthetic resin leg member, By sealing the upper end opening of the body of the can body by tightening and fastening the can lid, the contents can be filled and sealed in the same way as normal canned foods, and the beverage that becomes the contents can be reliably maintained for a long period of time. Can be saved. Moreover, the can body of the can can be easily manufactured by using an existing can-making line that has been used for manufacturing bottle-shaped cans.

  Canned containers can have a stylish appearance similar to wine glasses and champagne glasses, can be sealed in the same way as normal canned foods, and can be easily used with existing canning lines As shown in the following embodiment as the best mode, a metal can body, a can lid, and a synthetic resin leg member, However, the bottom side of the bottomed cylindrical can whose bottom portion is integrally formed with the bottom end of the cylindrical body portion has an inclined portion that tapers downward in a tapered shape, and a small diameter that extends downward from the lower end of the inclined portion. It is molded into the bottom cylindrical part, and the synthetic resin leg member is formed by integrally molding the pedestal part at the lower end of the cylindrical part, and the bottomed cylindrical part of the can body is the cylindrical shape of the leg member When it is inserted into the part from above and the two are joined together , The can lid to seal the upper end opening portion of the can body is achieved by the structure of canning container, such as is fixed seamed.

  Hereinafter, an embodiment of the glass-like can container of the present invention will be described. As shown in FIG. 1, a can container 1 according to the present embodiment includes a metal can body 2 and a metal can lid 3. And a leg member 4 made of a synthetic resin, and has an appearance similar to that of a wine glass of tableware as a whole. A beverage that is a product is filled.

  In the can body 2 of such a canning container 1, an inverted dome-shaped inclined portion 22 is integrally formed downward from the cylindrical body portion 21 so as to be reduced in a tapered shape with a curved surface downward. Further, a small-diameter bottomed cylindrical portion (small-diameter cylindrical portion 23 and bottom portion 24) is integrally formed so as to extend downward from the lower end of the inclined portion 22. That is, in this small-diameter bottomed cylindrical portion, the small-diameter cylindrical portion 23 and the bottom portion 24 are integrally formed in a cup shape, and the lower end of the small-diameter cylindrical portion 23 is completely closed from the beginning by the bottom portion 24. Yes.

  Further, the vicinity of the upper end of the cylindrical body portion 21 of the can body 2 is slightly as a neck portion 25 so that the portion does not protrude outward from the outer surface of the body portion 21 in a state where the can lid 3 is fastened and fixed. The metal can lid 3 is integrally wound and fixed by a separate member by a flange portion formed at the upper end of the neck portion 25, and the upper end opening of the can body 2 is The can lid 3 is securely sealed.

  In addition, the can lid 3 which is a separate member that is fastened and fixed to the can body 2 is riveted, for example, in the same manner as a can lid used for a conventional can container for canned beverages. Use a suitable type of can lid, such as a steion-type partially open can lid that causes the tab to partially open the opening, or a full-open can lid that causes the tab to remove the entire top surface of the can lid. Can do.

  The leg member 4 of the canned container 1 is integrally molded from a synthetic resin material such as polypropylene by injection molding or the like, and a pedestal portion 42 is integrally formed at the lower end of the cylindrical portion 41, By inserting the bottomed cylindrical part (small diameter cylindrical part 23 and bottom part 24) of the can body 2 into the inside of the tubular part 41 of the leg member 4 (axial core hollow part) from above, the can body 2 and the leg member 4 Are joined together.

  In the present embodiment, specifically, the upper end portion of the cylindrical portion 41 of the leg member 4 is in contact with the outer surface of the lower end portion of the inclined portion 22 of the can body 2, The bottom portion 24 of the bottom cylindrical portion is in contact with the bottom surface of the leg member 4 (the top surface of the central portion of the pedestal portion 42), thereby filling the contents and winding the can lid 3 with a seamer. It is able to withstand the pressure applied from above.

  An annular convex portion 23a is formed on the peripheral wall of the small-diameter cylindrical portion 23 of the can body 2 along the circumferential direction. On the other hand, the inner peripheral surface of the cylindrical portion 41 of the leg member 4 has a circumferential direction. In which the bottomed cylindrical portion (small diameter cylindrical portion 23 and bottom portion 24) of the can body 2 is fitted into the cylindrical portion 41 of the leg member 4 from above. The convex part 23a of 2 and the concave part 41a of the leg member 4 are fitted as a locking part, whereby the bottomed cylindrical part (small-diameter cylindrical part 23 and bottom part 24) of the can main body 2 is fixed to the leg member. Even if it is simply fitted into the four cylindrical portions 41, the coupling state between the two is reliable and strong.

  By the way, for the can body 2 of the canning container 1 as described above, resin films (for example, polybutylene terephthalate resin and polyethylene terephthalate resin) are formed on both surfaces of a metal plate (for example, an aluminum alloy plate having a thickness of about 0.3 mm). And a resin-coated metal plate for can making laminated with a resin film made of a mixed resin. In this resin-coated metal plate, the laminated resin film is molded together with the metal plate by laminating the resin in a molten state and then rapidly cooling it to make the resin amorphous (not crystallized). It is easy to be peeled off from the metal plate.

  A specific example of the manufacturing process for manufacturing the can body 2 from such a resin-coated metal plate will be described below. First, a lubricant is applied to both surfaces of the resin-coated metal plate as a material. Then, as shown in FIG. 2, the resin-coated metal plate is punched into a disk shape and then pressed into a shallow cup shape in the cup forming process, and then the cup is drawn and ironed in the can body forming process. By processing, it is formed into a bottomed cylindrical can in which the bottom is integrally formed at the lower end of the cylindrical body.

  Next, after removing the lubricant adhering to the bottomed cylindrical can in the lubricant removing step, the opening end side of the can is trimmed so that the bottomed cylindrical can is aligned at a predetermined height in the trimming step. Later, in the printing / painting process, decorative patterns and marks are printed on the outer surface of the bottomed cylindrical can with the same height, and if necessary, a protective transparent paint is applied. Then, in the drying process, hot air is blown to dry. In addition, after drying printing and coating, it is desirable to cool rapidly with cold air so that the resin film laminated | stacked on the metal plate may not crystallize.

  Next, in the lubricant re-application step, the lubricant is applied again to the inner and outer surfaces of the printed and painted bottomed cylindrical can, and then in the bottom molding step, the bottom side of the bottomed cylindrical can (including the lower portion of the body portion). The can bottom portion) is drawn multiple times (for example, 5 times), so that the portion extends downward from the lower end of the inclined portion and the inclined portion that decreases in diameter in a tapered manner. Molded into a small-diameter bottomed cylindrical part.

  Next, in the can body in which the tapered inclined portion and the small-diameter bottomed cylindrical portion are formed, the lubricant attached to the can body is removed and laminated on the metal plate in the lubricant removing step. After the resin of the resin film is not crystallized (amorphized), a processing roll is inserted into the inside of the small-diameter bottomed cylindrical part through the upper end opening of the can body in the locking part molding process By doing so, an annular convex portion (locking portion) along the circumferential direction is formed on the peripheral wall of the bottomed cylindrical portion by a roll forming method. Then, in the neck forming process, the diameter near the upper end of the body of the can body is slightly reduced to form the neck part, and then the upper end of the neck part is flanged (the can lid is tightened in the flange forming process). To be fixed).

  Although the molding process of the can body itself is completed by each process as described above, all processes except the locking part molding process have been developed by the applicant for the manufacturing process of such a can body. This is the same as the bottle-shaped can manufacturing process that has already been carried out (see, for example, Japanese Patent Application Laid-Open No. 2001-114245), and can use an existing bottle-shaped can manufacturing line. .

  In addition, the bottle-shaped can manufacturing process does not require a locking portion forming step for forming an annular convex portion on the peripheral wall of the small-diameter bottomed cylindrical portion, while the small-diameter bottomed cylindrical portion is threaded. As a process for forming the mouth and neck of the container (the spout part of the can container to which the cap is attached), the end of the small-diameter bottomed cylindrical part is trimmed and opened, and then the cylinder part is screwed or curled. A screw / curl forming process is provided to process the material.

  As shown in FIG. 2, the can body formed through the above-described steps is further processed by using a leg member made of a synthetic resin separately in the leg mounting step. The bottomed cylindrical portion which is the lower end portion of the can is fitted into the cylindrical portion of the leg member, so that the leg member is integrally attached to the lower end portion of the can body. After the can body with the leg members attached is transported to the content filling factory, the can is filled with the beverage of the content from the upper end opening of the can body in the content filling process, In the fastening process, the can lid is integrally fixed to the flange portion of the can body by double winding, and the upper end opening of the can body is sealed with the can lid, thereby finally having a wine glass-like appearance. It becomes a canned product.

  As mentioned above, although one Example of the glass-like can container of this invention was described, this invention is not limited only to the above Examples, For example, about the specific shape, it implements. It is not limited to the wine glass shape shown in the example (the shape of the can body with an inverted dome-shaped curved surface), but the champagne glass shape with an inclined portion of the can body having an inverted conical tapered surface. good. In addition, the manufacturing process of the can body is not limited to the manufacturing process shown in the embodiment, but the neck forming process and the flange forming process are performed after the trimming process, or the leg mounting process is performed after the locking part forming process. The order of the processes may be changed as appropriate, or unnecessary processes may be omitted, such as performing the leg mounting process after the lid winding process. is there.

  In addition, the connection between the can body and the leg member is not limited to the structure provided with the annular convex portion and the concave portion provided in the embodiment, and each of the locking portions on the can body side and the leg member side. The unevenness may be reversed, and further, the inner diameter of the cylindrical portion of the leg member is made slightly smaller than the outer diameter of the bottomed cylindrical portion of the can body without providing a locking portion due to such unevenness. Thus, both of them are firmly fitted by the elasticity of the synthetic resin of the leg member, or an adhesive is interposed between the outer surface of the bottomed cylindrical portion of the can body and the inner surface of the cylindrical portion of the leg member. Thus, the two may be integrally bonded with an adhesive, and in such a case, the locking portion molding step can be omitted in the molding process of the can body.

  Further, the specific shape and structure of the leg member are not limited to those shown in the embodiments, and for example, the can body and the leg member assuming the filling of the contents by aseptic filling (aseptic filling) In order to allow the sterilizing liquid and cleaning liquid to pass through the gap between the cylindrical part of the leg member and the cylindrical part of the leg member, a longitudinal groove is provided on the inner peripheral surface, or small so as to penetrate the pedestal part from the cylindrical part It goes without saying that the design can be changed as appropriate, such as providing holes.

The partial notch side view which shows one Example of the glass-shaped can container of this invention. Explanatory drawing which shows an example of the manufacturing process for manufacturing the container for canning shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Glass-like container for cans 2 Can main body 3 Can lid 4 Leg member 21 The trunk | drum part (of can body) 22 Inclined part 23 (of small diameter bottomed cylindrical part of can body) Small diameter cylindrical part 24 (outside of the small-diameter bottomed cylindrical portion of the can body) 41 the cylindrical portion (of the leg member) 42 (the base portion of the leg member)

Claims (1)

  A container for canning that has an appearance similar to a glass of tableware as a whole, and can be used for canning the contents in a metal can part, comprising a metal can body, a can lid, and a leg member made of synthetic resin The bottom portion of the bottomed cylindrical can whose bottom portion is integrally formed at the lower end of the cylindrical body portion, the inclined portion that reduces the diameter in a tapered manner downward, It is molded into a small-diameter bottomed cylindrical portion extending downward from the lower end, and a synthetic resin leg member is formed by integrally forming a pedestal portion at the lower end of the cylindrical portion, and has a bottom of the can body The cylindrical portion is fitted into the cylindrical portion of the leg member from above, and the two are integrally coupled, and the can lid is tightly fastened to seal the upper end opening of the can body. Glass-like canned containers.

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