JP2015101373A - Packaging container and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container which secures the virginity of a tape cartridge without using another member.SOLUTION: A packaging container 1 housing a data recording tape cartridge 50 includes a first lid 10 and a second lid 20 which are rotatably connected with each other through a hinge 5. The first lid 10 includes an inner rib 11 erected along an outer side surface 51 of the cartridge 50. The second lid 20 includes an outer wall 21, which is erected so as to face the inner rib 11, at a position opposite to the cartridge 50 with respect to the inner rib 11. A top part 23 of the outer wall 21 and the first lid 10 are locally welded.

Description

  The present invention relates to a packaging container containing a data recording tape cartridge and a manufacturing method thereof. In particular, the present invention relates to a packaging container having a function indicating that a data recording tape cartridge is an unused product and a method for manufacturing the same.

  Single reel type tape cartridges typified by LTO cartridges are mainly used for data backup in computer systems. These cartridges are housed in a special case (that is, a packaging container) to be transported and stored in order to protect the data recording tape from external impacts and dust.

  Since the tape cartridge generally stores important data, its reliability is regarded as important. In particular, the fact that the user can easily confirm that the cartridge is not used (so-called virginity) after the shipment from the factory until the user uses it is useful for improving the reliability. At the same time, this also helps prevent used cartridges from being packaged and resold as new.

  In general, as a method for ensuring the virginity of a product, a method for sticking a sealing seal to a container for storing a product (for example, Patent Document 1), a method for packaging a container with a shrink film, and an adhesive that cannot re-adhere the container (For example, Patent Document 2).

JP 2002-347875 A Japanese Patent No. 4267975

  However, each of the above methods has the following problems.

  In the method of applying a sealing seal, the sealing seal is strongly bonded so that it cannot be easily peeled off from the container. For this reason, a part of the sealing seal remains in the container after opening. This is an obstacle to the recycling of containers. Shrink packaging has problems such as being difficult to open and the need to discard the shrink film as garbage after opening. Moreover, since the seal for sealing and shrink packaging require the member for that separately from a container, they also have the subject that inventory management is required and the component cost rises.

  The method of sealing a container with an adhesive has a problem that an adhesive such as an EVA hot melt adhesive or a rubber adhesive is required.

  This invention solves said subject which the conventional method has, and aims at providing the packaging container which can ensure the virgin property of a tape cartridge, and its manufacturing method, without using another member. .

  The packaging container of this invention is a packaging container which accommodated the data recording tape cartridge, Comprising: The 1st lid | cover and 2nd lid | cover which were connected via the hinge so that rotation was possible. The first lid includes an inner rib erected along the outer surface of the cartridge. The second lid includes an outer wall erected so as to face the inner rib at a position opposite to the cartridge with respect to the inner rib. The top of the outer wall and the first lid are locally welded.

  The manufacturing method of a packaging container according to the present invention is a manufacturing method of a packaging container that contains a data recording tape cartridge, and includes a first lid and a second lid that are pivotally connected via a hinge. The first lid includes an inner rib erected along the outer surface of the cartridge, and the second lid is located at a position opposite to the cartridge with respect to the inner rib. A step of providing a packaging container having an outer wall erected so as to face the inner rib and having a welding rib protruding at the position of the first lid facing the top of the outer wall or at the top of the outer wall; And inserting the cartridge into the inner rib of the packaging container, overlapping the first lid and the second lid and closing the packaging container, and melting the welding rib by ultrasonic welding Let the top of the outer wall And a step of locally welding the serial first lid.

  According to the present invention, the top of the outer wall of the second lid and the first lid are locally welded. Thereby, the virgin property of the cartridge accommodated in the packaging container can be ensured without using a separate member from the packaging container.

  Since the first lid is provided with the inner rib, it is possible to prevent the molten resin generated during welding from adhering to the cartridge.

FIG. 1 is an exploded perspective view showing a data recording tape cartridge and a packaging container for storing the data recording tape cartridge in one embodiment of the present invention. FIG. 2 is an enlarged exploded perspective view of the portion 2 of FIG. FIG. 3 is a side view of the packaging container according to the first embodiment of the present invention before storing the data recording tape cartridge. FIG. 4 is an enlarged cross-sectional view of the packaging container according to the first embodiment of the present invention along the vertical plane including line 4-4 in FIG. FIG. 5 is a side view showing a process of superposing an upper cover on a lower cover on which a data recording tape cartridge is placed in an embodiment of the present invention. FIG. 6 is an enlarged cross-sectional view showing a process of melting a welding rib by ultrasonic welding and welding a part of the top of the outer wall and a lower lid in an embodiment of the present invention. FIG. 7 is a side view showing a state in which the protrusions and the recesses constituting the locking mechanism are not completely fitted immediately before performing ultrasonic welding in one embodiment of the present invention. FIG. 8 shows an embodiment of the present invention in which a notch is formed in a portion of the outer wall with which the welding rib abuts so that the protrusion and the recess constituting the locking mechanism are completely fitted immediately before ultrasonic welding is performed. It is a side view of the packaging container concerning. FIG. 9 is a perspective view showing welding marks remaining when the storage container according to the embodiment of the present invention is opened. FIG. 10 is a diagram showing the results of measuring the relationship between the position and size of the welded portion and the opening force in the storage container according to the embodiment of the present invention.

  In the packaging container of the present invention, the outer wall may include a pair of outer walls parallel to a plane orthogonal to the hinge. In this case, it is preferable that at least one top part of the pair of outer walls and the first lid are locally welded. Thereby, when opening a packaging container for the first time, a welding part can be destroyed with comparatively small force.

  When the dimension of the packaging container along a first direction perpendicular to the hinge and perpendicular to the direction in which the first lid and the second lid oppose is L, the top of the outer wall and the first lid It is preferable that the welded portion where is welded is provided within a range of (2/3) × L in the first direction from the hinge. Moreover, it is preferable that the length along the said 1st direction of the welding part where the top part of the said outer wall and the said 1st cover were welded is 0.1xL or less. According to these preferable configurations, the welded portion can be broken with a relatively small force when the packaging container is opened for the first time.

  In the manufacturing method of the packaging container according to the present invention, one of the inner rib and the outer wall may include a protrusion protruding toward the other, and the other of the inner rib and the outer wall is You may provide the recessed part fitted with the said protrusion. In this case, it is preferable that the ultrasonic welding is performed in a state where the protrusion is fitted in the recess and the protrusion is not in contact with an edge of the recess. Thereby, in the packaging container provided with the locking mechanism for maintaining a closed state, it can prevent that the protrusion which comprises a locking mechanism melt | dissolves at the time of ultrasonic welding.

  Below, this invention is demonstrated in detail, showing suitable embodiment. However, it goes without saying that the present invention is not limited to the following embodiments. For convenience of explanation, the drawings referred to in the following description show only the main members necessary for explaining the present invention in a simplified manner among the members constituting the embodiment of the present invention. Therefore, the present invention can include any member not shown in the following drawings. Further, in the following drawings, the actual dimensions of members and the dimensional ratios of the members are not faithfully represented.

  FIG. 1 shows a data recording tape cartridge (hereinafter simply referred to as “cartridge”) 50 and a packaging container (hereinafter simply referred to as “container”) 1 according to an embodiment of the present invention for housing the data recording tape cartridge 50. It is a perspective view. FIG. 2 is an enlarged perspective view of the portion 2 of FIG. FIG. 3 is a side view of the container 1. The container 1 shown in FIGS. 1 to 3 shows a state before the cartridge 50 is stored. For convenience of the following description, an XYZ orthogonal coordinate system as shown is set. The Z-axis direction coincides with the thickness direction (that is, the vertical direction).

  The cartridge 50 stores a wound magnetic recording tape and is mainly used for data backup in a computer system. In the present invention, the configuration of the cartridge 50 is arbitrary. The cartridge 50 of the first embodiment is a single reel type LTO cartridge. The cartridge 50 has a substantially rectangular parallelepiped shape as a whole. The winding axis of the tape stored in the cartridge 50 is parallel to the Z axis. The cartridge 50 is housed in a container 1 that is a special case and shipped from the factory in order to protect it from external impacts and dust.

  The container 1 is made of a thermoplastic resin such as polypropylene and is integrally manufactured by an injection molding method or the like. The container 1 includes a lower lid (first lid) 10 and an upper lid (second lid) 20. A hinge 5 extending along the Y-axis direction connects the lower lid 10 and the upper lid 20. The hinge 5 is a linear thin portion along one side of the upper lid 20. The upper lid 20 is rotatable with respect to the lower lid 10 with the hinge 5 as an axis. The container 1 can be closed by superimposing the upper lid 20 on the lower lid 10, and the container 1 can be opened by rotating the upper lid 20 away from the lower lid 10 from this state.

  The planar view shape of the lower lid 10 and the upper lid 20 is a rectangular shape that is slightly larger than the planar view shape that is a substantially rectangular shape of the cartridge 50.

  The lower lid 10 is provided with inner ribs 11 along three sides excluding the side to which the hinge 5 is connected. The inner rib 11 is erected at a position slightly retracted inward from the outer peripheral end of the lower lid 10 along the outer surface 51 parallel to the Z axis of the cartridge 50 when the cartridge 50 is stored in the container 1. ing. The inner rib 11 includes a pair of side ribs 12 parallel to a plane (XZ plane) orthogonal to the hinge 5. As shown in FIG. 2, a recess 17 is formed at a position near the end of the side rib 12 opposite to the hinge 5. In the present embodiment, the concave portion 17 is a through hole that penetrates the side rib 12. A welding rib 15 protrudes outside one of the pair of side ribs 12. The welding rib 15 is provided closer to the hinge 5 than the recess 17. 4 is an enlarged cross-sectional view along the vertical plane including line 4-4 of FIG. The welding rib 15 has a substantially wedge-shaped (substantially triangular) or a trapezoidal tapered cross-sectional shape, and is much lower than the side rib 12. In FIG. 4, the two-dot chain line indicates the cartridge 50 placed on the lower lid 10.

  Returning to FIGS. 1 and 3, the upper lid 20 is provided with outer walls 21 along three sides excluding the side where the hinge 5 is provided. The height (Z-axis direction dimension) of the outer wall 21 is higher than the height of the inner rib 11 of the lower lid 10. When the upper lid 20 is overlapped with the lower lid 10 and the container 1 is closed, the outer wall 21 is positioned outside the inner rib 11 of the lower lid 10 (on the side opposite to the cartridge 50), and the outer wall 21 contacts the lower lid 10. The thickness of the container 1 is defined in contact. The outer wall 21 includes a pair of outer walls 22 parallel to a plane (XZ plane) orthogonal to the hinge 5. A protrusion 27 protruding toward the opposing outer wall 22 is formed at a position near the end opposite to the hinge 5 of each outer wall 22. When the container 1 is closed, the protrusion 27 is fitted into the recess 17 of the lower lid 10. The concave portion 17 of the lower lid 10 and the protrusion 27 of the upper lid 20 constitute a lock mechanism for maintaining the closed state of the container 1.

  The storage container of the present invention means a container in which the cartridge 50 is stored in the container 1. The manufacturing method of the storage container of this invention is demonstrated below.

  First, the container 1 and the cartridge 50 described above are prepared.

  Next, the cartridge 50 is fitted and placed in the region surrounded by the inner rib 11 of the lower lid 10 of the container 1. The inner rib 11 (including the pair of side ribs 12) of the lower lid 10 faces the outer surface 51 of the cartridge 50.

  Next, as shown in FIG. 5, the upper lid 20 is rotated by the hinge 5 and overlapped with the lower lid 10 to close the container 1. The welding rib 15 protruding from the lower lid 10 contacts the top 23 of the outer wall 22 of the upper lid 20. Then, as shown in FIG. 6, the upper lid 20 is brought into contact with the anvil 91 and the welding horn 92 is pressed against the lower lid 10. It is preferable that the welding horn 92 is disposed immediately above the welding rib 15. The downward compression force F applied by the welding horn 92 to the container 1 is supported by the welding rib 15. In this state, ultrasonic vibration is applied from the ultrasonic horn 92 to the lower lid 10. The contact interface between the tip of the welding rib 15 and the top 23 of the outer wall 22 is heated by ultrasonic vibration to melt the welding rib 15 and locally bond (fix) the lower lid 10 and the outer wall 22. The molten resin produced by melting the molten rib 15 is compressed and spreads in the lateral direction, but the side rib 12 prevents the molten resin from adhering to the cartridge 50.

  If the lower lid 10 and the upper lid 20 are locally in contact with each other at locations other than the welding ribs 15 during welding, there is a possibility that the contact locations are heated at the same time and welding occurs. For example, the protrusion 27 of the upper lid 20 and the concave portion 17 of the lower lid 10 constituting the locking mechanism can be designed to fit each other after the welding with the welding rib 15 is completed. Therefore, in the state immediately before the welding, as shown in FIG. 7, the projection 27 may not fit into the recess 17 and the projection 27 may be in contact with the side rib 12 (including the edge of the recess 17). Absent. When ultrasonic welding is performed in this state, the protrusion 27 is also melted in addition to the welding rib 15. Therefore, in order to prevent the protrusion 27 from melting, the protrusion 27 is fitted into the recess 17 and the protrusion 27 is not in contact with the edge of the recess 17 (this state is referred to as a “completely fitted state”). It is preferable to perform sonic welding. Various methods are conceivable for realizing this, and there is no limitation.

  For example, in FIG. 7, a force F <b> 1 in which the lower lid 10 and the upper lid 20 approach each other is applied to a position near the outer periphery farthest from the hinge 5 of the lower lid 10 and the upper lid 20. The lower lid 10 and / or the upper lid 20 may be elastically deformed so as to be in a completely fitted state.

  Or as shown in FIG. 8, you may form the notch 24 in the part of the top part 23 of the outer side wall 22 with which the welding rib 15 contact | abuts. The depth of the notch 24 is set so that the protrusion 27 and the recess 17 are in a completely fitted state when the welding rib 15 contacts the bottom of the notch 24.

  Alternatively, when the welding rib 15 comes into contact with the top 23 of the outer wall 22, the height of the welding rib 15 and the vertical direction (Z-axis direction) of the recess 17 and / or the protrusion 27 are set so as to be in a completely fitted state. The position or size may be set.

  As described above, the welding rib 15 is melted by ultrasonic welding, and the lower lid 10 and the outer wall 22 of the upper lid 20 are locally welded in the region where the welding rib 15 is provided. The protrusion 27 is fitted into the recess 17 and the lock mechanism is locked. Thus, the container 1 containing the cartridge 50 of the present invention is obtained.

  The user of the cartridge 50 purchases the container 1 manufactured in this way. In order to take out the cartridge 50 from the container 1, a finger is placed on the outer periphery (side parallel to the hinge 5) farthest from the hinge 50 of the lower lid 10 and the upper lid 20, and the lower lid 10 and the upper lid 20 are separated from each other. Apply the power of. When the container 1 is opened, the welded portion formed by melting the weld rib 15 is broken (or broken). As shown in FIG. 9, welding marks 16 and 26 remain on the top 23 of the outer wall 22 of the lower lid 10 and the upper lid 20 as traces of the welded portion being destroyed. When the user opens the container 1 for the first time, the container 1 is opened for the first time after shipment from the factory based on the feel and sound when the welded portion is broken (broken) and the welding marks 16 and 26 after the container 1 is opened. Can be recognized.

  When the container 1 is once opened and then closed again, the projection 27 and the concave portion 17 are fitted to maintain the closed state of the container 1.

  As described above, in the container 1 of the present invention, the lower lid 10 and the top 23 of the outer wall 21 of the upper lid 20 are locally welded at the welded portion. When the user opens the container 1 for the first time, it is necessary to destroy the welded portion. The virginity of the cartridge 50 accommodated in the container 1 can be confirmed by the feel and sound at the time of destruction and the welding marks 16 and 26 after the destruction.

  The welding portion is formed by melting the welding rib 15 which is a part of the container 1 by an ultrasonic welding method. The welding rib 15 can be formed integrally with the container 1 simultaneously with the molding of the container 1 using the same material as the container 1 when the container 1 is injection molded. Therefore, no member other than the container 1 is necessary to form the welded portion. Further, after the container 1 is opened, no separate dust is generated from the container 1. Further, since the material different from the material of the container 1 does not adhere to the container 1 after the container 1 is opened, it is not necessary to separate the materials for each material when the container 1 is discarded, and the recycling of the container 1 is easy.

  The lower lid 10 and the top 23 of the outer wall 21 are locally welded. An inner rib 11 is erected on the lower lid 10 on the inner side (on the cartridge 50 side) than the outer wall 21. Therefore, the welding resin generated by melting the welding rib 15 during ultrasonic welding does not adhere to the cartridge 50 because the inner rib 11 exists. For this reason, there is no possibility that the molten resin will adhere to the cartridge 50 and reduce the commercial value of the cartridge 50.

  The welded portion is preferably provided only on one top portion 23 of the pair of outer walls 22 parallel to a plane orthogonal to the hinge 5. Therefore, when the container 1 is opened for the first time, the lower lid 10 and the upper lid 20 are torsionally deformed so that the outer wall 22 of the pair of outer walls 22 that is not provided with the welded portion is further separated from the lower lid 10. . Due to this torsional deformation, the destructive force for destroying the welded portion concentrates on a location far from the hinge 5 in the welded portion. For this reason, a welding part can be destroyed with comparatively small force.

  If the force required to open the container 1 for the first time (hereinafter referred to as “opening force”) is too large, it becomes difficult to open the container 1. Accordingly, the opening force is preferably set in an appropriate range. Specifically, the opening force is preferably 30 N or less, and more preferably 20 N or less.

  The opening force varies depending on the distance and size of the welded portion from the hinge 5. The inventors of the present invention determined the condition of the welded part for realizing the above preferable opening force by experiments. This will be described below.

  In the container 1 according to the embodiment described above, containers having different X-axis direction positions and X-axis direction lengths from the hinge 5 of the welding ribs 15 formed on the lower lid 10 were created. Only one welding rib 15 is formed on one outer side of the pair of side ribs 12. The container 1 was closed, the welding rib 15 was melted by ultrasonic welding, and the lower lid 10 and the outer wall 22 of the upper lid 20 were welded. Thereafter, the opening force required to open the container 1 was measured. The opening force is measured by using a digital force gauge (DPADA-500N made by IMADA) to measure the force applied to the center of the outer periphery farthest from the hinges 5 of the lower lid 10 and the upper lid 20 when the container 1 is opened. Was done. As shown in FIG. 10, the welding mark 16 remaining on the lower lid 10 after opening, the distance L <b> 1 along the X-axis direction from the farthest hinge 5 of the welding mark 16 from the hinge 5, and the welding mark 16. The length L2 along the X-axis direction was measured. The distance along the X-axis direction from the hinge 5 of the container 1 to the outer periphery of the lower lid 10 to which the opening force was applied (that is, the dimension in the X-axis direction of the container 1) L was 111.5 mm.

  FIG. 10 shows the measurement results of the opening force of samples A to F having different L1 and L2. As the sample G, the measurement results of the opening force of a container that does not form a welded part are also shown.

  As a result, in order to reduce the opening force to 30 N or less, the distance L1 satisfies L1 ≦ (2/3) × L with respect to the position in the X-axis direction of the welded portion, and the length in the X-axis direction of the welded portion. It was found that the length L2 preferably satisfies L2 ≦ 0.1 × L.

  Thus, it has been found that the closer the position of the welded portion in the X-axis direction is to the hinge 5, the smaller the opening force by the lever principle. Therefore, the welded portion is not provided in the outer periphery farthest from the hinge 5 (side parallel to the hinge 5) in the outer periphery of the lower lid 10, but is provided in a side along a plane orthogonal to the hinge 5. preferable.

  There is no limit on the lower limit of the opening force, but if the opening force is too small, the welded portion is destroyed by vibration or impact during transportation of the container 1, and the virginity of the stored cartridge 50 cannot be guaranteed. Things can happen. In general, the opening force is preferably 4N or more.

  The above embodiments are merely exemplary. The present invention is not limited to the above embodiment, and can be modified as appropriate.

  In the above embodiment, the inner rib 11 is provided on the lower lid 10 and the outer wall 21 is provided on the upper lid 20, but the present invention is not limited to this. That is, an inner rib that faces the outer surface 51 of the cartridge 50 may be provided on the upper lid 20, and an outer wall may be provided on the lower lid 10 so as to be disposed on the outer side (opposite side of the cartridge 50). Note that “upper” and “lower” attached to the lids 10 and 20 are for distinguishing the two lids 10 and 20 and do not mean the directions of the container 1 during actual use.

  The welding rib 15 is provided on the lower lid 10 having the inner rib 11 in the above embodiment, but may be provided on the top 23 of the outer wall 21.

  In the above embodiment, the number of welding ribs 15 is one, but a plurality of welding ribs 15 may be used. When a plurality of welding ribs 15 are provided, generally, a plurality of welding portions are formed, and a plurality of welding marks 16 and a plurality of welding marks 26 remain on the lower lid 10 and the upper lid 20, respectively. The number, size, interval, and the like of the welding ribs 15 correspond to the number, size, interval, and the like of welding marks that are recognized after the container 1 is opened. For example, the number, size, interval, and the like of the welding ribs 15 may be different for each type of cartridge 50 to be stored. In this way, when a used cartridge is stored in a separate container and the upper lid and lower lid are welded and re-sold as a new one, the cartridge type is checked against the welding mark, It is possible to easily determine whether or not there is.

  The welding rib 15 may be colored. This facilitates visual inspection of the welding marks 16 and 26 after the container is opened. The method of coloring the welding rib 15 is not limited, but there are a method of applying a paint to the welding rib 15, a method of integrating a welding rib separately prepared by mixing a coloring pigment with a container by a two-color molding method, and the like. Can be used.

  In the above embodiment, the hinge 5 is provided along one side of the upper lid 20, but the present invention is not limited to this, and may be provided along one side of the lower lid 10. Alternatively, the container may include two hinges, and one container may be provided along one side of the upper lid and one side of the lower lid.

  The configuration of the locking mechanism between the lower lid 10 and the upper lid 20 is not limited to the above embodiment. A protrusion may be formed on the inner rib, and a recess that fits into the protrusion may be formed on the outer wall. The recess does not need to be a through hole, and may be a non-through recess into which a protrusion can be fitted. When the recess is a non-through hole, the ultrasonic welding is preferably performed in a state where the protrusion does not contact the inner wall surface of the recess. The locking mechanism may be configured by protrusions that engage with each other instead of the protrusions and the recesses. The lock mechanism may be omitted.

  In the above embodiment, the cartridge stored in the container is a single reel type LTO cartridge, but the type of cartridge stored in the container is not limited. For example, a single reel type tape cartridge such as IBM 3590, IBM 3592, or ORACLE T10000 may be used. Further, it may be a double reel type tape cartridge provided with two reels for winding the tape.

  The application field of the present invention is not limited, but can be widely used for containers containing cartridges that require virginity. In particular, it is suitable for a container containing a single reel type tape cartridge for data recording.

1 Packaging container 5 Hinge 10 Lower lid (first lid)
11 Inner rib 12 Side rib 15 Welding rib 16 Welding mark 17 Recess 20 Upper lid (second lid)
21 outer wall 22 outer wall 23 top 24 of outer wall (outer wall) notch 26 welding mark 27 protrusion 50 data recording tape cartridge 51 outer surface of cartridge

Claims (6)

A packaging container containing a data recording tape cartridge,
A first lid and a second lid that are pivotally connected via a hinge;
The first lid includes an inner rib erected along the outer surface of the cartridge,
The second lid includes an outer wall erected so as to face the inner rib at a position opposite to the cartridge with respect to the inner rib.
The packaging container, wherein the top of the outer wall and the first lid are locally welded. The outer wall includes a pair of outer walls parallel to a plane orthogonal to the hinge,
The packaging container according to claim 1, wherein one top portion of the pair of outer walls and the first lid are locally welded.   When the dimension of the packaging container along a first direction perpendicular to the hinge and perpendicular to the direction in which the first lid and the second lid oppose is L, the top of the outer wall and the first lid 3. The packaging container according to claim 1, wherein the welded portion is provided within a range of (2/3) × L from the hinge in the first direction.   When the dimension of the packaging container along a first direction perpendicular to the hinge and perpendicular to the direction in which the first lid and the second lid oppose is L, the top of the outer wall and the first lid The packaging container according to any one of claims 1 to 3, wherein a length along the first direction of the welded portion where is welded is 0.1 x L or less. A method of manufacturing a packaging container containing a data recording tape cartridge,
A packaging container comprising a first lid and a second lid that are pivotally connected via a hinge, wherein the first lid comprises an inner rib erected along the outer surface of the cartridge. The second lid includes an outer wall erected so as to face the inner rib at a position opposite to the cartridge with respect to the inner rib, and the top of the outer wall faces the first lid. Or a step of preparing a packaging container with a welding rib protruding at the top of the outer wall, or
Inserting the cartridge into the inner rib of the packaging container, overlapping the first lid and the second lid, and closing the packaging container;
The manufacturing method of a packaging container provided with the process of melting the said welding rib by ultrasonic welding and locally welding the said top part and the said 1st lid | cover of the said outer wall. One of the inner rib and the outer wall includes a protrusion that protrudes toward the other, and the other of the inner rib and the outer wall includes a recess that fits the protrusion,
The manufacturing method of the packaging container of Claim 5 which performs the said ultrasonic welding in the state which the said protrusion fits in the said recessed part, and the said protrusion is not contacting the edge of the said recessed part.

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