JP6173966B2 - Coffee beans filling container - Google Patents

Description

  The present invention relates to a method for producing a container containing coffee beans and a filling container for coffee beans.

  Roasted coffee beans have the property of releasing carbon dioxide gas, so filling the storage container with roasted coffee beans increases the internal pressure of the container due to the released carbon dioxide gas. There is a risk of deformation. As a filling container for roasted coffee beans, a container that can withstand the pressure of carbon dioxide gas is known (see Patent Document 1).

  When the user opens the container in a state where the internal pressure is higher than the external pressure, the carbon dioxide gas trapped in the container may be released to the outside of the container all at once, and coffee beans may be ejected together with the carbon dioxide gas. The container described in Patent Document 1 has a vent hole that releases the carbon dioxide accumulated in the container to the outside. However, when the container is suddenly opened, carbon dioxide is released through the vent hole. There may be insufficient conditions and coffee beans may still erupt. As a technique for preventing the ejection of coffee beans, there is known an opening device set that allows a user of a container to reliably reduce the internal pressure of the container (see Patent Document 2).

  If the roasted coffee beans are sealed using the container described in Patent Document 1, it is possible to keep the fresh state for a long time. And it is possible to prevent reliably that a coffee bean spouts from a container at the time of opening by using the opening tool set described in patent document 2 for this container.

JP 2009-241944 A International Publication No. 2013/035195

  However, the lid opening tool set described in Patent Document 2 is not always highly convenient for some users. That is, since the lid opening tool set described in Patent Document 2 is dedicated to the coffee bean container, for example, when the coffee beans are filled in the container and sold in the store, the lid opening tool is owned by each household. It is necessary to keep this in mind, and the user may feel annoyed. Therefore, there is a demand for the development of a roasted coffee bean filling container that can keep the roasted coffee beans fresh for a long time, but can be more easily opened.

The present invention, wherein has been made in view of the problems, roasted also yet coffee beans in a can be kept long in a fresh state, simple der is unplugging work Turkey Hi bean filling containers It is an issue to provide.

In order to solve the above problems, a coffee bean filling container according to the present invention is an aluminum alloy coffee bean filling container for filling roasted coffee beans, and has a bottomed cylindrical body portion. A container main body having a cylindrical portion formed at the upper end via a shoulder portion and a lid portion for closing the opening of the cylindrical portion, and the total volume of the container main body is 650 to 2000 ml .
Further, in this coffee bean filling container, the inner diameter of the barrel is 1.8 to 2.2 times the inner diameter of the cylindrical portion, and the vertical dimension of the barrel is relative to the inner diameter of the barrel Is 1.4 times to 1.8 times, and the vertical dimension of the shoulder part and the cylindrical part is 0.12 to 0.16 times the vertical dimension of the body part.
The shoulder portion includes a lower tapered portion formed on the trunk portion side, an upper tapered portion formed on the cylindrical portion side, and an intermediate curved surface formed between the lower tapered portion and the upper tapered portion. When the coffee beans are put to the intermediate curved surface portion, the capacity of the void portion inside the container body is 60% or less of the total capacity inside the container body.

The filling container for coffee beans according to the present invention fills the coffee beans up to the intermediate curved surface portion , so that the capacity of the void portion inside the container body becomes 60% or less of the total capacity inside the container body. Therefore, if the coffee bean filling container according to the present invention is used, it is possible to easily manufacture a coffee bean-containing container capable of avoiding the scattering of coffee beans at the time of opening without using a lid opening tool.

  According to the present invention, the roasted coffee beans can be kept fresh for a long time, but the opening operation is simple.

It is a decomposition | disassembly side view (partial sectional view) of the filling container for coffee beans which concerns on embodiment. It is sectional drawing of the container containing a coffee bean which concerns on embodiment. It is sectional drawing of the container containing coffee beans which concerns on embodiment, Fig.3 (a) shows the state of 40% of empty dimensions, and FIG.3 (b) shows the state of 30% of empty dimensions. It is the table | surface which showed the empty ratio in a container when filling various quantity of coffee beans into the container whose total capacity | capacitance which concerns on embodiment is 775 ml. It is the table | surface which showed the relationship between the empty ratio and scattering in the container whose total capacity | capacitance which concerns on embodiment is 775 ml.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings as appropriate.
Each figure is only schematically shown so that the invention can be fully understood. Therefore, the present invention is not limited to the illustrated example. In the drawings to be referred to, dimensions of members constituting the present invention may be exaggerated for clarity of explanation. In addition, in each figure, about the same component or the same component, the same code | symbol is attached | subjected and those overlapping description is abbreviate | omitted.

<< Configuration of Filling Container for Coffee Beans According to Embodiment >>
With reference to FIG. 1 and FIG. 2, the structure of the filling container 1 for coffee beans which concerns on embodiment is demonstrated. The coffee bean filling container 1 (hereinafter abbreviated as “container 1”) stores the roasted coffee beans c (see FIG. 2) in a sealed state. Hereinafter, the container 1 filled with the roasted coffee beans c (see FIG. 2) is distinguished from the container 1 not filled with the coffee beans c (hereinafter abbreviated as a container 1a containing coffee beans). Sometimes called “container 1a”). In FIG. 2, the coffee beans c are partially omitted.

  The container 1 here is assumed to be a DI (Drawing and Ironing) can made of an aluminum alloy, but the raw materials and the manufacturing method are not limited thereto. As shown in FIG. 1, the container 1 includes a container body 10 and a lid 20.

<Container body>
The container body 10 has a predetermined internal space, and the internal space is filled with roasted coffee beans c. The container main body 10 is integrally formed by connecting two parts by a tightening portion 10a. The completely filled volume (hereinafter referred to as “total capacity V”) from the dome portion 11a to the upper end of the neck portion 13 of the container body 10 is determined in relation to the empty space ratio S and the like described later (details of the manufacturing method described later) See description). The container body 10 includes a bottomed cylindrical body part 11, a shoulder part 12 formed on the upper part of the body part 11, and a neck part 13 formed on the upper part of the shoulder part 12.

  The trunk portion 11 is a main part of the container body 10. The trunk | drum 11 is manufactured from a board | plate material by DI shaping | molding, for example. The body portion 11 is formed with a dome portion 11a for obtaining a pressure resistance at the bottom.

  The shoulder portion 12 connects the trunk portion 11 and the neck portion 13. The shoulder portion 12 includes a lower taper portion 12a formed on the body portion 11 side, an upper taper portion 12b formed on the neck portion 13 side, and an intermediate curved surface portion formed between the lower taper portion 12a and the upper taper portion 12b. 12c. The inclination angle with respect to the central axis of the upper tapered portion 12b is larger than the inclination angle with respect to the central axis of the lower tapered portion 12a.

  The neck 13 has a cylindrical shape and functions as an opening in the container body 10. The neck portion 13 is formed with a screw (male screw) 13a composed of a plurality of screw threads and screw valleys on the outer peripheral surface.

<Cover>
The lid 20 seals the container body 10. The lid portion 20 is, for example, P.D. P. It may be a cap (pilfer proof cap). In FIG. 1, a state where the lid portion 20 is attached to the container body 10 is indicated by a broken line. The lid portion 20 includes a top plate portion 21 that is circular in plan view, a circumferential portion 22 that hangs down from the periphery thereof, and a sheet-like sealing material 23 that is disposed inside the top plate portion 21.

  A plurality of vent holes 22a are formed in the circumferential portion 22 at substantially equal intervals in a circumferential shape. The vent hole 22a is formed by partially shearing the circumferential portion 22 inward. Further, a screw (female screw) 22b that follows the screw 13a of the neck portion 13 is formed on the circumferential portion 22.

  The sealing material 23 is a resin and sheet-like sheet packing. The sealing material 23 is disposed by adhering a die-molded material. The sealing material 23 may apply a liquid or paste-like sealing agent to the inside of the top plate portion 21 in addition to mold forming. In a state where the lid 20 is mounted on the container body 10 (indicated by a broken line), the tip of the neck 13 is in contact with the sealing material 23. As a result, the container 1 is sealed without communication between the inside and outside of the container 1 through the plurality of vent holes 22a.

  When the lid 20 is rotated in the direction in which the lid 20 is opened (counterclockwise) from the state in which the lid 20 is attached to the container body 10 (indicated by a broken line), the lid 20 is raised by the screws 13a and 22b. When the lid portion 20 is rotated about one turn, the contact between the tip of the neck portion 13 and the sealing material 23 is eliminated (separated), and the inside and outside of the container 1 can communicate with each other through the plurality of vent holes 22a.

≪Method for producing container with coffee beans according to embodiment≫
Conventionally, as a method for producing a container containing coffee beans, predetermined roasted coffee beans are filled into a container body, and a lid is attached to the neck of the container body using a winding machine (capper) (not shown).

The inventor of the present invention pays attention to the fact that the capacity of the carbon dioxide gas in the container is a major factor in the occurrence of the scattering of the coffee beans c, and opens the cap by specifying the empty size S and filling the coffee beans c. It has been devised that the scattering of coffee beans c at the time can be easily avoided.
Here, it is defined as “empty size S = capacity G (ml) of gas part in container / total capacity V (ml) of container × 100”. Capacity G of the container in the gas portion, a capacitor G ₁ space coffee beans c is not filled is formed in an upper portion of the container, it consists capacity G ₂ Metropolitan space is formed between the coffee beans c (See FIG. 2).

FIG. 4 shows the empty dimensions S when various amounts of coffee beans c are filled in the container 1 having a total container capacity V of 775 ml. The void ratio S shown in FIG. 4 was calculated by the following method.
First, a predetermined amount of coffee beans c was filled in a container 1 having a total volume V of 775 ml. At this time, the coffee beans were filled while shaking the container 1. The mass of the filled coffee beans c is a value described in the “bean mass” column of FIG. When 270 g of coffee beans c were added, the container 1 having a total container capacity V of 775 ml became full.

  Next, after filling with water until the container 1 was completely filled, the water was taken out from the container 1 and the weight of the taken-out water was measured. The mass of the extracted water at this time is a value described in the column “Mass of water” in FIG. Then, the mass of water was “1 gram (g) = 1 milliliter (ml)”, and the volume (ml) of water / total capacity V (ml) × 100 was calculated as the void ratio S. The calculated empty space ratio S is a value described in the “empty space ratio” column of FIG. In addition, although water is also contained in the coffee bean c itself, it is in a range that does not particularly affect the calculation of the empty space ratio.

  Next, a test for specifying the application range of the empty size ratio S will be described with reference to FIG. In this test, after filling the roasted coffee beans c in such an amount that the empty space ratio S is 52.2%, 54.8%, 57.4%, 60%, 70%, the container 1 is sealed, After pressurizing the internal pressure of the container 1 to 0.4 MPa, the container was rapidly opened three times to observe whether or not the coffee beans c were scattered. As a result, only when the empty space ratio S is 70%, the coffee beans c are scattered at the time of opening (“NG” in FIG. 5), and in other cases, the coffee beans c are scattered. ("OK" in FIG. 5). Therefore, in order not to cause the coffee beans c to scatter, the upper limit of the empty dimension S should be 60%.

Here, with reference to FIG. 1 and FIG. 3, it supplements about the relationship between the dimension of the container 1, and the empty space ratio S 60% or less. The dimension _{L 2} of the inner diameter of the body portion 11 of the container 1 to 1.8 times to 2.2 times the dimension _{L 1} of the inner diameter of the neck 13, 1.4 times the vertical dimension _{L 3} of the body portion 11 _{L 2} ~ When the vertical dimension L ₄ and L ₅ of the shoulder portion 12 and the neck portion 13 is set to be 1.82 times and 0.16 times to 0.16 times L ₃ , the coffee when the empty size ratio S is 40% The position of the bean c is in the vicinity of the intermediate curved surface portion 12c of the shoulder portion 12 (see FIG. 3A). In other words, if the container 1 has the above-described dimensions and the coffee beans c are filled to the vicinity of the intermediate curved surface portion 12c of the shoulder portion 12, the empty space ratio S is approximately 60% or less.

  On the other hand, there is no particular limitation on the lower limit of the empty space ratio S. However, the following cautions are necessary in parts other than the scattering of coffee beans c. As described above, when the empty space ratio S is around 30%, the container 1 becomes full as shown in FIG. Therefore, when trying to lower the empty space ratio S than this, the coffee beans c must be crushed, which may affect the quality. For this reason, the lower limit of the empty space ratio S is preferably set to 30%. Further, when the empty space ratio S is around 30%, depending on the way of opening, there is a possibility that the coffee beans c may spill out of the container 1 due to causes other than carbon dioxide (inclination, etc.) at the time of opening. Therefore, although scattering of the coffee beans c does not occur, the lower limit of the empty space ratio S is more preferably set to 40% as the container 1 filled with the coffee beans c.

  The inventor conducted the same test on a container having a total volume V of “2000 ml”, and confirmed that the same tendency as that when the total volume V was “775 ml” was observed. A similar test was performed on a container having a total capacity V of “3000 ml”, and it was confirmed that scattering was observed when the empty space ratio S was “45%”. This is considered to be due to the fact that the capacity G of the gas part in the container increases as the total capacity V increases even if the empty space ratio S is the same. In this case, the problem that it was difficult to open by hand was also confirmed. Therefore, the upper limit of the total capacity V of the container 1 should be 2000 ml so that the coffee beans c are not scattered.

  Further, the present inventor has confirmed that for a container having a total capacity V of “650 ml”, even when the empty space ratio S is increased, the problem of scattering does not occur because the capacity G of the gas portion in the container is small. . Thus, there is no particular limitation on the lower limit of the total capacity V of the container 1. However, the following cautions are necessary in parts other than the scattering of coffee beans c. As the total volume V decreases, the amount of coffee beans c that can be filled also decreases. Therefore, although the scattering of the coffee beans c does not occur, the lower limit of the total capacity V is more preferably set to 650 ml for the container 1 that is assumed to be sold in stores.

  As a result, the coffee bean-filled container 1a is filled with roasted coffee beans c so that the empty space ratio S is 30% to 60% while the container 1 having a total capacity V of 650 ml to 2000 ml is swung. It has been found that it is preferable to manufacture by sealing with the lid 20 after filling.

  According to the method for manufacturing the coffee bean-filled container 1a according to this embodiment, the capacity of the carbon dioxide gas can be suppressed to a certain level or less. Therefore, according to the coffee bean-filled container 1a according to the present embodiment, the coffee beans c do not scatter when the cap is opened, so that it is not necessary to open the cap using a dedicated opening tool.

  Moreover, according to the filling container 1 for coffee beans which concerns on this embodiment, the capacity | capacitance G of the space | gap part inside the container main body 10 is 60 of the total capacity | capacitance inside the container main body 10 by filling the coffee bean c to the shoulder part 12. % Or less. Therefore, if the filled container 1 for coffee beans according to the present embodiment is used, the coffee bean-filled container 1a that can avoid the scattering of the coffee beans at the time of opening can be easily manufactured.

[Modification]
As mentioned above, although embodiment of this invention was described, this invention is not limited to this, It can implement in the range which does not change the meaning of a claim. The modification of embodiment is shown below.

  In the container 1 according to the embodiment, two parts are coupled between the trunk part 11 and the shoulder part 12 by the winding part 10a, but the number of parts to be configured is not particularly limited. For example, the container 1 may be composed of one part or may be composed of two or more parts.

  Moreover, the container 1 according to the embodiment was sealed by tightening the screws 13a and 22b. However, the sealing means for sealing the container 1 is not limited to this, and various means can be used. This sealing means is not limited to the one that can be sealed again after being released once as in this embodiment, but may be one that cannot be once again released after being released once.

DESCRIPTION OF SYMBOLS 1 Filling container for coffee beans 1a Container with coffee beans 10 Container body 11 Body 12 Shoulder 13 Neck (cylindrical part)
20 Lid (sealing means)
c Coffee beans V Total capacity G Capacity of gas part in container (capacity of void part)

Claims (1)

A filling container for coffee beans made of aluminum alloy for filling roasted coffee beans,
A container body in which a cylindrical portion is formed via a shoulder at the upper end of a bottomed cylindrical body,
A lid for closing the opening of the cylindrical portion,
The total volume of the container body is 650-2000 ml,
The inner diameter of the body is 1.8 times to 2.2 times the inner diameter of the cylindrical part,
The vertical dimension of the barrel is 1.4 to 1.8 times the inner diameter of the barrel,
The vertical dimension of the shoulder part and the cylindrical part is 0.12 to 0.16 times the vertical dimension of the trunk part,
The shoulder portion includes a lower tapered portion formed on the body portion side, an upper tapered portion formed on the cylindrical portion side, an intermediate curved surface portion formed between the lower tapered portion and the upper tapered portion. Comprising
When the coffee beans are put to the intermediate curved surface portion, the capacity of the void portion inside the container body is 60% or less of the total capacity inside the container body,
A filled container for coffee beans.

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