JP2008094446A - Extrusion type container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To minimize a manufacturing cost and a consumption of plastic material in an extrusion type container in which semi-solid substance or fluid substance is contained. <P>SOLUTION: An extrusion type container having semi-solid substance or fluid substance contained in a sealer (10) is constituted such that a bottom part (12) of the sealer is reinforced with an outer reinforcing plate (30) and an inner reinforcing plate (40). A bottom part (12) of the sealer is formed with a ring-like protrusion (22) having a U-shaped cross-section and protruded downward, and with an extrusion hole (24). The inner reinforcing plate has a protrusion (42) into which a protrusion of the sealant body is exactly fitted and an extrusion hole (44). The outer reinforcing plate has a protrusion (32) into which a protrusion of the inner reinforcing plate is exactly fitted. The sealer, outer reinforcing plate and inner reinforcing plate are connected to each other by holding the bottom part of the sealant between the outer reinforcing plate and the inner reinforcing plate and by fitting the protrusion of the inner reinforcing plate to the protrusion of the outer reinforcing plate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an extrudable container that contains a semi-solid or fluid food, in particular a frozen dessert such as ice cream, and is extrudable from an extrusion hole in a bottom surface.

  Conventionally, ice cream is cooled and stored while slowly stirring in a dedicated refrigerator installed in a store or the like, and is supplied to a container such as a cone from the refrigerator when a visitor visits. In recent years, ice cream is sealed in an extrusion container at the factory to save hygiene reasons that bacteria and the like are not mixed in the ice cream, and the trouble of cleaning and sterilizing the refrigerator, etc. It has begun to extrude ice cream from an extrusion container into a container such as a cone using an extruder.

  As such an extrusion-type container, the one shown in FIG. 3 is proposed in Patent Document 1 below. This extrusion container is provided with a flange 5 at the opening periphery of a plastic container body 2, and a plastic sealing body 1 filled with ice cream A is accommodated in the container body 2. The sealing body 1 includes an inner film 3 that is bonded to the upper surface of the bottom surface of the container body 2, an inner peripheral surface, and the upper surface of the flange portion 5, and an outer film 4 that is welded to the inner film 3 on the flange portion 5. Extrusion holes 8 are provided through the bottom surface of the container body 2 and the bottom surface of the inner film 3. A stopper film 9 that can be easily peeled off is adhered to the lower surface of the bottom surface of the container body 2 to close the extrusion hole 8.

  In order to extrude the ice cream A from the extrusion container, the stopper film 9 is peeled off, and then the extrusion container is set on the container holder B of the dedicated extruder D as shown in FIG. The plunger C is pushed into the container body 2 to compress the sealing body 1. Then, the adhesion between the inner film 3 and the flange 5 is peeled off, and the sealing body 1 is compressed in the container body 2. When the sealing body 1 is compressed, the ice cream A is pushed out from the extrusion hole 8 into a container such as a cone (not shown).

JP 2002-68304 A

  Certainly, the above-described extrusion container is hygienic and has the advantage of reducing the troubles such as cleaning and sterilization in the refrigerator, etc., but the process of adhering the inner film 3 in the container body 2 is troublesome and increases the manufacturing cost. There was a problem. In addition to the container body 2, the inner film 3 is necessary, and there is a problem that a large amount of plastic material is consumed. Recently, demands for reducing manufacturing costs due to economic conditions and demands for reducing the amount of plastic materials used due to environmental problems are becoming stronger.

  This invention is made | formed in view of the said problem, and makes it a subject to make manufacturing cost and the usage-amount of a plastic material as small as possible in the extrusion-type container with which the substance which has fluidity | liquidity, such as ice cream, was enclosed. .

  In order to solve the above problems, the invention according to claim 1 has a semi-solid or fluidity in a sealed body composed of a flexible cup and a flexible lid that closes the opening of the cup. In an extrusion container that extrudes the substance to the outside by enclosing the substance and compressing the sealing body with an extruder when necessary, the bottom of the sealing body is reinforced by an outer reinforcing plate and an inner reinforcing plate, The bottom is formed with a ring-shaped projecting U-shaped protrusion projecting downward and an extrusion hole through which the substance passes, and the inner reinforcing plate is fitted with a ring-shaped section U that fits snugly into the projecting part of the bottom. An extrusion hole is formed at a position coinciding with the letter-shaped projection and the extrusion hole of the bottom, and a ring-shaped U-shaped projection having a ring shape into which the projection of the inner reinforcement plate can be fitted is formed on the outer reinforcement plate. And said bottom is said The projecting portion of the inner reinforcing plate is fitted into the projecting portion of the outer reinforcing plate sandwiched between the side reinforcing plate and the inner reinforcing plate, and the bottom portion, the outer reinforcing plate, and the inner reinforcing plate are combined. It is characterized by that.

  The invention according to claim 2 is characterized in that, in the invention according to claim 1, the peripheral edge of the inner reinforcing plate is bent upward to reinforce the lower portion of the side wall from the bottom of the sealing body.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the outer reinforcing plate is provided with a tab for removal.

  The invention according to claim 4 is characterized in that, in the invention according to claim 1, 2, or 3, the side wall of the sealing body is formed in a bellows shape.

  According to the first aspect of the invention, the bottom portion of the flexible sealing body is sandwiched between the outer reinforcing plate and the inner reinforcing plate, and the protruding portion of the inner reinforcing plate is used as the protruding portion of the outer reinforcing plate. Since the bottom portion, the outer reinforcing plate, and the inner reinforcing plate are joined together, the manufacturing time can be shortened compared with the conventional one by the amount that it is not necessary to apply the adhesive. Further, since only the bottom portion of the sealing body is reinforced by the outer reinforcing plate and the inner reinforcing plate, the plastic material can be greatly reduced as compared with the conventional case where the bottom portion and the entire side wall of the sealing body are reinforced by the container body. Furthermore, since each protrusion part of an outer side reinforcement board and an inner side reinforcement board works as a reinforcement rib of both reinforcement boards, both reinforcement boards can also be made as thin as possible. Thus, the manufacturing time is shortened and the plastic material can be greatly reduced, so that an extrusion-type container with low cost and less environmental problems can be obtained.

  According to the second aspect of the invention, the peripheral edge of the inner reinforcing plate is bent upward to reinforce the lower portion of the side wall from the bottom of the sealing body, so that the sealing body can be further reinforced.

  According to the third aspect of the present invention, since the outer reinforcing plate is provided with the detaching tab, the outer reinforcing plate can be easily removed and an extrusion hole can be formed in the bottom of the sealed body.

  According to the fourth aspect of the present invention, since the side wall of the sealing body is formed in a bellows shape, the thin side wall has sufficient rigidity when the containing material is present, and the side wall can be easily removed when extruding the containing material. The contained material can be extruded inwardly.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a longitudinal sectional view of an extrusion container according to an embodiment of the present invention, and is a sectional view taken along the line II of FIG. FIG. 2 is a bottom view of the extrusion container.

  As shown in FIGS. 1 and 2, the extrusion container includes a sealing body 10 made of a thin plastic film filled with ice cream A, and an outer reinforcing plate 30 and an inner reinforcing plate that reinforce the bottom portion 12 of the sealing body 10. 40. The sealing body 10 includes a cup 19 in which a side wall 14 rises from the bottom 12, a flange 16 is provided at the upper end of the side wall 14, and a step 18 is provided at a position slightly lower than the upper end of the side wall 14. It consists of the part 16 and the lid | cover 20 welded. However, the lid 20 seals the ice cream A in the sealed body 10 by filling the ice cream A in the cup 19 and then welding the periphery of the lid 20 to the flange 16. A reinforcing bellows 17 is formed on the side wall 14 of the sealing body 10. The angle θ formed between the side wall 14 of the sealing body 10 and the vertical direction is set to 10 ° or less. This is because the side wall 14 is folded inward when the ice cream A is extruded.

  The portion filled with dots in FIG. 1 represents ice cream A, but the dots used in FIG. 2 are merely for ease of viewing.

  The sealing body 10 is flexible enough to be easily folded back and deformed when the ice cream A is pushed out by an extruder (not shown), and the strength and thickness not to be broken at this time are selected. As a material of the sealing body 10, polypropylene (PP) is suitable from the viewpoint of compatibility between strength and flexibility in a wide temperature range, particularly at a low temperature, but linear low density polyethylene (LLDPE), polyethylene terephthalate (PET), An appropriate plastic material such as polystyrene (PS) can be selected. The material of the sealing body 10 may be manufactured by blending a plurality of appropriate plastic materials and rubber. Although the thickness of the sealing body 10 is based on material or a magnitude | size, it is about 0.1-0.6 mm normally.

  An outer reinforcing plate 30 and an inner reinforcing plate 40 made of hard polyethylene terephthalate (PET) are respectively disposed on the outer surface and the inner surface of the bottom 12 of the sealing body 10. Of course, an appropriate plastic material other than PET can be used for the outer reinforcing plate 30 and the inner reinforcing plate 40. The bottom portion 12 of the sealing body 10 is formed with a ring-shaped projecting portion 22 having a U-shaped section projecting downward and an extrusion hole 24 through which the ice cream A passes.

  The inner reinforcing plate 40 includes a ring-shaped projecting portion 42 that protrudes downward in a ring shape so as to fit into the projecting portion 22 of the bottom portion 12 of the sealing body 10, and an extrusion hole 24 in the bottom portion 12 of the sealing body 10. Extrusion holes 44 are formed at the matching positions. The peripheral edge 46 of the inner reinforcing plate 40 is bent upward to reinforce the lower portion of the side wall 14 from the bottom 12 of the sealing body 10. The shape of the extrusion holes 22 and 44 is a star shape in the present embodiment, but may be an appropriate shape such as a circle, a triangle, or a rectangle.

  The outer reinforcing plate 30 is also formed with a ring-shaped protruding portion 32 that protrudes downward in a ring shape so that the protruding portion 42 of the inner reinforcing plate 40 can be fitted tightly. However, no extrusion hole is formed in the outer reinforcement plate 30, and the outer reinforcement plate 30 has a function of a sealing member that closes the extrusion hole 22 of the sealing body 10 and the extrusion hole 44 of the inner reinforcement plate 40.

  To complete the extrusion container, first, the bottom portion 12 of the cup 19 without the lid 20 is sandwiched between the outer reinforcing plate 30 and the inner reinforcing plate 40, and the protrusion 42 of the inner reinforcing plate 40 is externally reinforced. Fit into the protrusion 32 of the plate 30. Thus, the outer reinforcing plate 30 and the inner reinforcing plate 40 can be firmly bonded to the bottom 12 of the cup 19 without using an adhesive. And after filling the ice cream A in the cup 19, the lid | cover 20 is joined to the collar part 16 of the cup 19 by welding, and it is completion.

  When extruding the ice cream A from the extrusion container, the outer reinforcing plate 30 is first removed. Since the outer reinforcing plate 30 has a removal tab 34, the outer reinforcing plate 30 can be easily removed from the sealing body 10 by pulling the removal tab 34 downward. Thus, since the extrusion holes 24 and 44 are opened in the bottom 12 of the sealing body 10, the extrusion container is set in the extruder D and the container is compressed as shown in FIG. .

  According to the present embodiment, the sealing body 10, the outer reinforcing plate 30, and the inner reinforcing plate 40 can be firmly coupled without using an adhesive. As a result, the manufacturing time is reduced as compared with the case where the sealing body 1 and the container body 2 are bonded as in the conventional case shown in FIG. In addition, the container body 2 that reinforces the sealing body 1 is not necessary, and the protrusions 32 and 42 of the outer reinforcing plate 30 and the inner reinforcing plate 40 function as reinforcing ribs. it can. Thus, the manufacturing time can be shortened, and the plastic material can be greatly reduced, so that an extrusion type container that is inexpensive and has few environmental problems can be obtained.

  By the way, the present invention is not limited to the above-described embodiments, and various modifications are possible. For example, the substance sealed in the extrusion container is not limited to frozen confectionery such as ice cream, but may be a semi-solid or fluid food that must prevent contamination with bacteria.

  Further, the inner reinforcing plate 40 does not necessarily need to bend the peripheral edge upward to reinforce the side wall 14, and may reinforce only the bottom portion 12. Further, the side wall 14 is not necessarily provided with a bellows. Further, the outer reinforcing plate 30 is not necessarily provided with the detaching tab 34, and the outer periphery of the outer reinforcing plate 30 slightly protrudes from the lower part of the side wall 14 of the sealing body 10, You may just make it take.

FIG. 3 is a longitudinal sectional view taken along line II of FIG. 2 in the extrusion container according to one embodiment of the present invention. It is a bottom view of the extrusion container. It is a longitudinal cross-sectional view of the conventional extrusion container. It is a figure explaining the method of extruding ice cream from an extrusion-type container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sealing body 12 Bottom part 14 Side wall 17 Bellows 19 Cup 20 Lids 22,32,42 Protrusion part 24,44 Extrusion hole 30 Outer reinforcement board 34 Tab for removal 40 Inner reinforcement board

Claims (4)

A semi-solid or fluid substance is sealed in a sealed body composed of a flexible cup and a flexible lid that closes the opening of the cup. In an extrusion container that extrudes the substance to the outside by compressing,
A bottom portion of the sealing body is reinforced by an outer reinforcing plate and an inner reinforcing plate, and a ring-shaped projecting U-shaped projecting portion and an extrusion hole through which the substance passes are formed on the bottom portion. The reinforcing plate has a ring-shaped U-shaped projecting portion that fits exactly into the projecting portion of the bottom portion, and an extrusion hole is formed at a position that coincides with the extrusion hole of the bottom portion, and the outer reinforcing plate has the inner reinforcing plate. A ring-shaped U-shaped protrusion is formed so that the protrusion of the inner reinforcement plate fits snugly, the bottom portion is sandwiched between the outer reinforcing plate and the inner reinforcing plate, and the outer reinforcing plate protrudes from the outer reinforcing plate. An extrusion container characterized by being fitted into a protruding portion of a plate, and combining the bottom portion, the outer reinforcing plate, and the inner reinforcing plate.   The extrusion container according to claim 1, wherein a peripheral edge of the inner reinforcing plate is bent upward to reinforce a lower portion of the side wall from a bottom portion of the sealing body.   The extrusion container according to claim 1 or 2, wherein a tab for removal is provided on the outer reinforcing plate.   The extrusion container according to claim 1, 2 or 3, wherein the side wall of the sealing body has a bellows shape.

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