JP2012071892A - Container, portion package in which fluid is sealed in the container, manufacturing method of the portion package, and opening method of the portion package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate charging of a portion package container with fluid and to enable reliable sealing of its pouring opening (or holes) with a sealing member.SOLUTION: A container 1 includes a container body 2 having a short pipe shape in which one end is an open end and the other end is provided with a bottom plate 4, and a first sealing member 3 which is joined to an end surface of the open end 7 of the container body to seal the open end. The bottom plate 4 is formed with a pouring hole 5. A manufacturing method of a portion package, includes pouring fluid 12 through a pouring hole 5 into the container 1, and sealing the pouring hole 5 by joining a second sealing member 11 to an outside surface of the bottom plate 4.

Description

  The present invention relates to a container for storing a fluid such as a liquid or a gel, a portion pack formed by sealing a fluid in the container, a method for manufacturing the portion pack, and a method for opening the portion pack.

  A portion pack is known in which a fluid such as a liquid or a gel is used as a content and the container is filled with the fluid (see, for example, Patent Documents 1 and 2).

  The container of the portion pack described in Patent Document 1 includes a cylindrical container body having one end opened and the other end provided with a bottom. A discharge port for discharging the contained fluid is formed at the bottom of the container body. And the open end of a container main body is sealed with the sealing member fitted to this open end, and the discharge outlet formed in the bottom is sealed with the cover member which covers a bottom. The fluid is injected from the open end of the container body with the discharge port sealed by the lid member, and a seal member is fitted to the open end and sealed in the container.

  The container of the portion pack described in Patent Document 2 includes a cylindrical container body that is open at both ends. And both the open ends of a container main body are sealed by welding a film-like sealing member to an end surface. The fluid is injected from the other open end with one open end sealed with a seal member, and the seal member is welded to the end surface of the other open end and sealed in a container.

  In each of the portion packs described in Patent Documents 1 and 2, the open end of the container body is used as an inlet for the fluid. In such a configuration, it is difficult to inject the fluid into the full container.

  In the fluid injected into the container, the edge of the surface of the fluid typically rises compared to the center due to the surface tension of the fluid. Even if the surface edge of the fluid reaches the edge of the open end, the center of the surface of the fluid is located below the edge of the open end. Therefore, the amount of fluid injected into the container is insufficient. When the open end is an injection port, the injection port is inevitably large. The larger the injection port, the more insufficient the injection amount of the fluid due to the rise of the edge of the surface of the fluid. If more fluid is injected, the surface edge of the fluid may spread over the end surface beyond the edge of the open end. The end surface has a relatively small area and is easily covered with a fluid that spreads wet. In the case of sealing the open end by welding a seal member to the end face of the open end serving as the inlet, the bonding between the seal member and the end face of the open end is hindered, and the seal of the open end by the seal member is prevented. May be incomplete.

Japanese Utility Model Publication No. 56-141173 Special table 2003-512107 gazette

  This invention is made | formed in view of the situation mentioned above, The objective is to make easy filling of the fluid to the container of a portion pack, and to perform sealing of the injection port by a sealing member reliably.

(1) It has a cylindrical shape, one end is opened, the other end is provided with a bottom, and the container body is joined to the open end face of the container body, and the first end is sealed. A container having an inlet formed in a partial region of the bottom.
(2) A portion pack in which a fluid is housed in the container of (1), a second seal member is joined to the outer surface of the bottom, and the injection port is sealed. The fluid is injected through the inlet into a container in which the open end is sealed with a first seal member and the inlet is formed in the bottom provided at the other end. A method for producing a portion pack in which a second seal member is joined to the outer surface of the bottom of the container into which is injected, and the inlet is sealed.

  According to the present invention, a bottom is provided at one end of the container body, and an inlet is formed in a partial region of the bottom, and the surface of the fluid to be injected is leveled at the bottom. Thereby, it becomes easy to fill the container with the fluid.

  And the 1st sealing member which seals the open end of a container main body is joined to the end surface of an open end, before a fluid is inject | poured into a container, and the injected fluid inhibits joining of both. There is no. The second seal member that seals the inlet is joined to the outer surface of the bottom where the inlet is formed after the fluid is injected. The outer surface of the bottom is connected to the end of the container body provided with the bottom. Larger than the end face when the open end is used. Therefore, even if the fluid spreads around the inlet, the joining area can be provided on the outer surface of the bottom so as to surround the inlet on the outer side. Thereby, the injection port can be reliably sealed by the second seal member.

The figure which shows an example of the container for demonstrating embodiment of this invention. The figure which changes the direction which sees the container of FIG. 1 from FIG. The figure which is an example of the portion pack for demonstrating embodiment of this invention, Comprising: The figure which shows the portion pack formed by enclosing a fluid in the container of FIG. The figure which shows the manufacturing process of the portion pack of FIG. The figure which expands and shows the part enclosed by the dotted-line circle V in FIG. The figure which shows an example of the opening tool of the portion pack of FIG. The figure which shows an example of the container sealing device for demonstrating embodiment of this invention. The figure which shows the transfer means of the container of the container sealing device of FIG. 7, and the feed means of a sealing material in detail. The figure which shows the process of sealing the container of FIG. 1 using the container sealing apparatus of FIG. The figure which shows the other example of the container for demonstrating embodiment of this invention. The figure which shows the portion pack formed by enclosing a fluid in the container of FIG. The figure which expands and shows the part enclosed by the dotted-line circle | round | yen XII in FIG. The figure which shows the modification of the container of FIG.

  1 and 2 show an example of a container.

  The container 1 includes a container body 2 and a first seal member 3.

  The container body 2 has a cylindrical shape, one end is open, and the other end is provided with a bottom 4. An opening 5 is formed in the bottom 4. In the illustrated example, the container body 2 is formed in a substantially rectangular cylindrical shape in plan view, and the openings 5 are respectively provided at four corners of the bottom 4 and are each formed in a substantially circular shape in plan view. . Among these openings 5, some of the openings 5 serve as inlets for injecting the fluid into the container 1, and the remaining openings 5 allow air in the container to be injected when injecting the fluid into the container 1. In some cases, the exhaust port is used as an exhaust port.

  Further, a plurality of annular ribs 6 are formed on the outer surface 4 a of the bottom 4. Each of these ribs 6 is provided so as to surround the opening 5 with a distance from the edge of the opening 5, and is also spaced from the edge of the outer surface 4 a of the bottom 4 over the entire circumference thereof. It is. The distance between the rib 6 and the edge of the opening 5 exceeds the internal volume of the container 4 in consideration of variations in the injection amount of the fluid 12 when the fluid 12 is injected into the container 1 using a dispenser or the like. It is set as the distance which can accommodate the overflowing fluid 12 inside.

  The first seal member 3 is joined to the end surface 7 a of the open end 7 of the container body 2 and seals the open end 7. As the first seal member 3, for example, a film made of a thermoplastic resin having a metal foil such as aluminum laminated thereon can be used. The first seal member 3 is an end surface 7 a of the open end 7 by welding. It is joined to. The joining of the first seal member 3 and the end surface 7a of the open end 7 is not limited to welding. For example, an adhesive may be applied to the end surface 7a of the open end 7, and the first seal member 3 and the end surface 7a of the open end 7 may be joined by the adhesive. Therefore, the first seal member 3 is also welded. It is not limited to what is possible.

  FIG. 3 shows an example of a portion pack in which a fluid 12 is sealed in a container 1.

  The portion pack 10 is configured such that the second seal member 11 is joined to the outer surface 4a of the bottom 4 of the container 1 into which the fluid 12 has been injected, and the opening 5 of the bottom 4 is sealed. The fluid 12 is injected into the container 1 so as to substantially fill the capacity of the container 1 and is enclosed in the container 1.

  As the second seal member 11, for example, similarly to the first seal member 3, a film made of a thermoplastic resin laminated with a metal foil such as aluminum can be used. 4 is joined to the outer surface 4a. The joining of the second seal member 11 and the outer surface 4a of the bottom 4 is not limited to welding. For example, an adhesive may be applied to the outer surface 4a of the bottom 4, and the second seal member 11 and the outer surface 4a of the bottom 4 may be joined by the adhesive. Therefore, the second seal member 11 can also be welded. It is not limited to things.

  FIG. 4 shows a manufacturing process of the portion pack 10.

  The fluid 12 is injected into the container 1 whose open end 7 is sealed with the first seal member 3 through the opening 5 formed in the bottom 4 thereof. A substantially constant amount of the fluid 12 is injected using, for example, a dispenser. Due to the surface tension of the fluid 12, the shape of the surface of the fluid 12 injected into the container 1 is a concave shape in which the edge portion 12a contacting the inner surface of the side wall of the container 1 is raised compared to the central portion 12b. Present. (FIG. 4A)

  When the surface edge 12 a of the fluid 12 reaches the inner surface 4 b of the bottom 4 of the container 1, the surface edge 12 a of the fluid 12 is pressed against the inner surface 4 b of the bottom 4, and the fluid 12 is injected by further injection of the fluid 12. Stay in position. On the other hand, a space is left between the surface center portion 12 b of the fluid 12 and the inner surface 4 b of the bottom 4, and the surface center portion 12 b gradually bulges as the fluid 12 is further injected. Contact 4b. That is, the surface of the fluid 12 having a concave shape is leveled by the inner surface 4 b of the bottom 4. Thereby, the fluid 12 is filled in the container 1. (FIG. 4B to FIG. 4C)

  The second seal member 11 is joined to the outer surface 4 a of the bottom 4. All the openings 5 in the bottom 4 are sealed by the second seal member 11, and the fluid 12 is sealed in the container 1. (FIG. 4D)

  FIG. 5 shows in detail the joining state of the container 1 and the second seal member 11 around the opening 5.

  The fluid 12 overflowing beyond the inner volume of the container 1 may spread around the opening 5 on the outer surface 4a of the bottom 4 due to variations in the amount of fluid 12 injected by the dispenser. The figure shows a state in which the fluid 12 is spread around the opening 5.

  The second seal member 11 is joined to the outer surface 4 a of the bottom 4 in a state where the fluid 12 is wet and spread around the opening 5. Since the outer surface 4a of the bottom 4 is larger than the end surface when the end of the container 1 provided with the bottom 4 is an open end, even if the fluid 12 spreads around the opening 5, the outer surface 4a A joining region with the second seal member can be provided on the outer surface 4 a of the bottom 4 so as to surround the opening 5.

  In particular, a plurality of annular ribs 6 are formed on the outer surface 4 a of the bottom 4, and each of these ribs 6 surrounds the opening 5 with a distance from the edge of the opening 5. Each of the ribs 6 is spaced from the edge of the outer surface 4a of the bottom 4 over the entire circumference. The wetting and spreading of the fluid 12 is blocked by the rib 6, and a joining region surrounding the opening 5 is secured outside thereof.

  As described above, when the second seal member 11 is joined to the outer surface 4 a of the bottom 4, each of the openings 5 is surrounded by a joint portion between the second seal member 11 and the outer surface 4 a of the bottom 4. Thereby, the opening 5 is reliably sealed by the second seal member 11.

  FIG. 6 shows an example of an opening tool for the above-described portion pack 10 and a step of opening the portion pack 10 using this opening tool.

  The opening tool 20 includes a substrate portion 21, a convex portion 22 provided at the center of the upper surface of the substrate portion 21, and a sharp claw portion 23 protruding from a part of the edge of the upper surface of the convex portion 22. ing. The convex portion 22 can be inserted into the container 1 from the open end 7 side of the container 1 of the portion pack 10 and is loosely fitted inside the container 1.

  The first seal member 3 that seals the open end 7 of the container 1 of the portion pack 10 is pressed against the convex portion 22 of the opening tool 20, and the first seal member 3 is perforated by the claw portion 23 on the upper surface of the convex portion 22. . (FIG. 6A)

  The first seal member 3 is further pressed against the convex portion 22 of the opening tool 20, the first seal member 3 is broken with the hole generated by the claw portion 23 as a base point, and the portion pack 10 is opened. Then, the convex portion 22 is inserted into the container 1. The fluid sealed in the portion pack 10 is pushed out by the convex portion 22. The fluid to be pushed out is received by the substrate part 21 and recovered. (FIG. 6B)

  When the convex portion 22 is completely inserted into the container 1, the inside of the container 1 is replaced with the convex portion 22, whereby substantially all of the fluid sealed in the portion pack 10 can be recovered. (FIG. 6C)

  7 and 8 show an example of a container sealing device that seals the opening 5 of the container 1.

  The sealing device 100 joins the second seal member 11 to the outer surface of the bottom 4 of the container 1 to seal the opening 5 of the container 1. A plurality of containers 1 are arranged on the pallet 108, and the containers 1 are supplied to the sealing device 100 in units of pallets. In the drawing, for simplicity, only one container 1 is shown for each pallet 108.

  The sealing device 100 is supplied from a transfer unit 101 that transfers the pallet 108 on which the container 1 is arranged, a supply unit 102 that supplies a sealing material 120 that is a material of the second seal member 11, and a supply unit 102. The sealing means 120 for feeding the sealing material 120, the injection means 104 for injecting the fluid into the container 1, the joining means 105 for joining the sealing material 120 to the container 1 of the pallet 108, and the container 1 of the pallet 108. A cutting means 106 for cutting out the joining portion (second seal member 11) from the sealing material 120 and a separating means 107 for separating the cut-out joining portion (second sealing member 11) from the remaining sealing material 120 are provided. .

  The transfer means 101 includes a guide rail 110 extending along the transfer path of the pallet 108, an engagement member 111 detachably engaged with the plurality of pallets 108 mounted on the guide rail 110, and an engagement member 111. And a driving mechanism 112 for driving the motor.

  The engaging member 111 includes a base 113 that extends under the guide rail 110 and extends in parallel with the guide rail 110, and a plurality of pins 114 that are erected on the base 113 at a predetermined pitch.

  The drive mechanism 112 supports the engagement member 111, and a lift drive mechanism 115 such as a cylinder piston that lifts and lowers the engagement member 111, and a translation drive such as a linear motor that reciprocates the lift drive mechanism 115 along the transfer path of the pallet 108. Mechanism 116.

  The engaging member 111 is driven by the elevating drive mechanism 115 and the engaging member 111 engages the pins 114 with the plurality of pallets 108 placed on the guide rail 110. Next, the elevating drive mechanism 115 and the engaging member 111 supported by the elevating driving mechanism 115 are advanced along the transfer path by being driven by the translation drive mechanism 116, and the plurality of pallets 108 with which the pins 114 are engaged are the engaging members. 111 and the guide rail 110 are advanced together. Next, the engaging member 111 is driven by the lifting drive mechanism 115 to lower, and the engaging member 111 engages and disengages the pins 114 from the plurality of pallets 108. Next, the lift drive mechanism 115 and the engagement member 111 supported by the lift drive mechanism 115 driven by the translation drive mechanism 116 retreat along the transfer path, and the engagement member 111 returns to the initial position. By repeating the above cycle, the plurality of pallets 108 are intermittently transferred along the transfer path.

  The sealing material 120 is a long film made of a thermoplastic resin, and the supply unit 102 includes an original fabric roll 121 around which the sealing material 120 is wound, and a winding roll 122 that winds the sealing material 120 from the original fabric roll 121. And a plurality of auxiliary rolls 123.

  The original fabric roll 121 and the take-up roll 122 are each driven by a motor (not shown). This is not for controlling the feeding of the sealing material 120 but for removing a slack of the sealing material 120 by applying a certain tension to the sealing material 120.

  The plurality of auxiliary rolls 123 are appropriately disposed in a section between the raw fabric roll 121 and the take-up roll 122 and define the feed path of the sealing material 120. The feeding path of the sealing material 120 is along the transfer path of the pallet 108 in a part of the section, and the sealing material 120 overlaps the outer surface of the bottom 4 of the container 1 of the pallet 108 in the section.

  The injection means 104 is disposed upstream of the section along the transfer path of the pallet 108 along the feed path of the sealing material 120. The injection means 104 includes a dispenser 140 and a sensor (not shown). When the pallet 108 to be transferred is placed under the injection means 104, the injection means 104 detects this with a sensor, operates the dispenser 140 based on the detection signal of the sensor, Fluid 12 is injected.

  The joining means 105 is arranged in a section along the feed path of the sealing material 120 in the transport path of the pallet 108. The joining means 105 includes a heat welding head 150 that is driven up and down and a sensor (not shown).

  When the pallet 108 to be transferred is arranged under the joining means 105, the joining means 105 detects this by a sensor and lowers the thermal welding head 150 based on the detection signal of the sensor. The sealing material 120 is pressed against the container 1 of the pallet 108 by the descending heat welding head 150 and is welded to the outer surface of the bottom 4 of the container 1. Thereby, the container 1 is sealed in the opening 5. In addition, joining of the sealing material 120 and the outer surface of the bottom 4 is not limited to welding. For example, an adhesive may be applied to the outer surface of the bottom 4 and the sealing material 120 and the outer surface of the bottom 4 may be joined by the adhesive. In that case, for example, an adhesive is applied to the outer surface of the bottom 4 of the container 1 upstream of a section along the transfer path of the pallet 108 along the feed path of the sealing material 120.

  The cutout means 106 is disposed on the downstream side of the joining means 105 in a section along the feed path of the sealing material 120 in the transfer path of the pallet 108. The cutout means 106 includes a laser marker 160 and a sensor (not shown).

  When the pallet 108 to be transferred is placed under the cutout means 106, the cutout means 106 detects this with a sensor and operates the laser marker 160 based on the detection signal of the sensor. The laser marker 160 irradiates the sealing material 120 welded to the container 1 of the pallet 108 with a laser. The laser is irradiated along the edge of the outer surface of the bottom 4 of the container 1. Accordingly, the second seal member 11 is cut out from the seal material 120 in a state where the second seal member 11 is bonded to the outer surface of the bottom 4 of the container 1. The pallet may be a die, and a punch may be pressed against the die to punch out the second seal member 11 from the seal material 120.

  The separating means 107 is disposed on the downstream side of the cutting means 106, and defines the downstream end of the section along the transfer path of the pallet 108 in the feed path of the sealing material 120. Separating means 107 includes a spatula-like slidable contact member 170 that is in sliding contact with seal material 120, and a roller 171 that guides seal material 120 upward downstream of slidable contact member 170.

  The sealing material 120 is bent immediately after the sliding contact member 170 and is sent upward to be separated from the transfer path. However, the second sealing member 11 cut out from the sealing material 120 is joined to the container 1 and is connected to the pallet 108. Move along the transfer path. Thereby, relative movement occurs between the second seal member 11 and the remaining sealing material 120, and the second seal member 11 is separated from the remaining sealing material 120.

  The feeding means 103 is arranged in a section between the joining means 105 and the cutout means 106 in the transfer path of the pallet 108. The feeding means 103 includes a pair of gripping mechanisms 130 which are provided on both sides of the sealing material 120 and each grips and releases the edge of the sealing material 120. These gripping mechanisms 130 are fastened to the lifting / lowering driving mechanism 115 reciprocally driven along the transfer path by the translation driving mechanism 116 in the transfer means 101, and move together with the lifting / lowering driving mechanism 115.

  The feeding means 103 is used when the engaging member 111 engaged with the pallet 108 and the elevating drive mechanism 115 that supports the pallet 108 are moved forward to transfer the pallet 108 in the cycle of the above-described transferring means 101 for transferring the pallet 108. In addition, the sealing material 120 is gripped by the gripping mechanism 130. As the gripping mechanism 130 moves forward integrally with the lifting drive mechanism 115, the sealing material 120 gripped by the gripping mechanism 130 is sent along its feed path. The feeding means 103 releases the gripping of the sealing material 120 by the gripping mechanism 103 when the engaging member 111 engaged / disengaged from the pallet 108 and the lifting / lowering drive mechanism 115 supporting the same retracts to return to the initial position. To do. The gripping mechanism 130 moves backward together with the lifting drive mechanism 115 and returns to the initial position. By repeating the above cycle, the sealing material 120 is intermittently fed along the feeding path. Thus, when feeding the sealing material 120, the feeding means 103 holds the sealing material 120 and moves integrally with the transfer means 101. Thereby, the sealing material 120 is joined to the container 1 of the pallet 108, and the feeding of the sealing material 120 and the feeding of the pallet 108 are easily synchronized until the joining portion (second sealing member 11) is separated. Can take.

  The feeding means 103 holds the sealing material 120 in the section between the joining means 105 and the cutting means 106 in the pallet 108 transfer path, and the sealing material 120 in the section between the joining means 105 and the cutting means 106. When synchronizing the feeding of the pallet 108 and the transfer of the pallet 108, it is possible to prevent the two from being out of synchronization due to the elongation of the sealing material 120.

  The pallet 108 can also be transferred using a belt conveyor, but since the belt circulates and returns to the initial position, a plurality of pallets 108 can be transferred without interruption, and the sealant 120 can be sent in synchronization therewith. A plurality of gripping mechanisms 130 of the feeding means 103 are required along the belt. On the other hand, the transfer means 101 transfers the pallet 108 by reciprocatingly driving the engaging member 111 detachably engaged with the pallet 108 and the elevating drive mechanism 115 supporting the engaging member 111 along the transfer path. As described above, one set of gripping mechanisms 130 is sufficient, and the configuration of the apparatus can be simplified.

  The feeding unit 103 grips the sealing material 120 by the gripping mechanism 130 only when the pallet 108 is in the section between the joining unit 105 and the cutout unit 106 in the transport path of the pallet 108. Whether or not the pallet 108 is in the section between the joining means 105 and the cutout means 106 is determined by, for example, using a sensor provided in each of the joining means 105 and the cutout means 106 and passing through the joining means 105. And the number of pallets that have passed through the cutting means 106 are counted and compared.

  FIG. 9 shows a step of sequentially sealing a plurality of containers 1 using the container sealing device 100 configured as described above.

  FIG. 9 shows a state in which the interval between two pallets 108a and 108b among the plurality of pallets to be transferred is large, and the interval P is cut out from the joining means 105 along the transfer path of the pallet 108. It is larger than the distance L to 106. Such a state may occur, for example, when the supply of the pallet 108 to the container sealing device 100 is performed manually. In the figure, only two pallets 108a and 108b with a gap P are shown for simplicity.

  The preceding pallet 108a is disposed under the joining means 105, and the sealing material 120 is welded to the container 1 of the pallet 108a. Thereby, the container 1 is sealed in the opening 5. (FIG. 9A)

  Next, the pallets 108a and 108b are transferred by the transfer means 101 that operates in the above-described cycle. Here, a pallet 108 a is provided in a section between the joining unit 105 and the cutout unit 106 in the transfer path of the pallet 108. Therefore, the feeding means 103 moves the engaging member 111 engaged with the pallet 108 and the elevating drive mechanism 115 supporting the pallet 108 in the cycle of the transferring means 101 for transferring the pallet 108 to transfer the pallet 108. When doing so, the sealing material 120 is gripped by the gripping mechanism 130. As the gripping mechanism 130 moves forward integrally with the lifting drive mechanism 115, the sealing material 120 gripped by the gripping mechanism 130 is sent along its feed path. Since the gripping mechanism 130 that grips the sealing material 120 moves integrally with the lifting drive mechanism 115 that transports the pallet 108a, the feeding of the sealing material 120 is reliably synchronized with the transport of the pallet 108a. Thereby, it is prevented that peeling occurs in the joining between the container 1 of the pallet 108a and the sealing material 120. (FIG. 9B)

  The transfer means 101 repeats the above cycle, and the preceding pallet 108a is placed under the cutout means 106. The second sealing member 11 is cut out from the sealing material 120 in a state where the second sealing member 11 is welded to the container 1 of the pallet 108a. Thereby, sealing of the container 1 of the pallet 108a is completed. Here, the interval P between the pallets 108 a and 108 b is larger than the distance L from the joining means 105 to the cutout means 106 along the transfer path of the pallet 108. Therefore, when the preceding pallet 108a is disposed below the cutout means 106, the subsequent pallet 108b is positioned upstream of the joining means 105 along the transfer path. (FIG. 9C)

  As the transfer means 101 repeats the above cycle, the pallet 108b is transferred under the joining means 105. Meanwhile, the section between the joining means 105 and the cutout means 106 in the transfer path of the pallet 108 has a pallet. Does not exist. Therefore, the feeding means 103 moves the engaging member 111 engaged with the pallet 108 and the elevating drive mechanism 115 supporting the pallet 108 in the cycle of the transferring means 101 for transferring the pallet 108 to transfer the pallet 108. In doing so, the sealing material 120 is released without gripping the sealing material 120 by the gripping mechanism 130. Even if the gripping mechanism 130 moves forward integrally with the lifting / lowering driving mechanism 115, the sealing material 120 is not sent along the feeding path, and only the pallets 108a and 108b are transferred. Thereby, the sealing material 120 is saved. (FIG. 9D)

  FIG. 10 shows another example of the container. In addition, the same code | symbol is attached | subjected to the element which is common in the container 1 mentioned above, and description is simplified thru | or abbreviate | omitted.

  The container 31 includes a container body 32 and a first seal member 3.

  The container body 32 has a cylindrical shape, one end is opened, and the other end is provided with a bottom 34. An opening 35 is formed in the bottom 34. In the example shown in the drawing, the container body 32 is formed in a substantially rectangular cylindrical shape in plan view, and the openings 35 are respectively provided at the corners forming the diagonal of the bottom 34, and are each formed in a substantially circular shape in plan view. ing. One of the two openings 35 serves as an inlet for injecting the fluid into the container 31, and the other opening 35 exhausts the air in the container when injecting the fluid into the container 31. It is considered as an exhaust port.

  The opening 35 is formed in a step shape in which the opening diameter φ2 of the second end portion 35b connected to the outer surface 34a of the bottom 34 is larger than the opening diameter φ1 of the first end portion 35a connected to the inner surface 34b of the bottom 34. Has been. A stepped surface 38 is formed at a connection portion between the first end 35a and the second end 35b. The opening diameter φ2 of the second end portion 35b is a fluid that overflows the internal volume of the container 31 in consideration of variations in the injection amount of the fluid 12 when the fluid 12 is injected into the container 31 using a dispenser or the like. It is set as the diameter which can accommodate 12 inside.

  The first seal member 3 is joined to the end surface 37 a of the open end 37 of the container body 32 and seals the open end 37.

  FIG. 11 shows an example of a portion pack in which the fluid 12 is sealed in a container 31.

  The portion pack 40 is configured such that the second seal member 11 is joined to the outer surface 34a of the bottom 34 of the container 31 into which the fluid 12 has been injected, and the opening 35 of the bottom 34 is sealed. The fluid 12 is injected into the container 31 so that the capacity of the container 31 is substantially full, and is enclosed in the container 31. The second seal member 11 is joined to the outer surface 34a of the bottom 34 of the container 31 by welding.

  FIG. 12 shows in detail the joining state of the container 31 and the second seal member 11 around the opening 35.

  The fluid 12 overflowing beyond the internal volume of the container 31 may enter the opening 35 due to variations in the amount of fluid 12 injected by the dispenser. In the figure, a state in which the fluid 12 has entered the opening 35 is shown.

  As described above, the opening 35 is a step in which the opening diameter φ2 of the second end 35b connected to the outer surface 34a of the bottom 34 is larger than the opening diameter φ1 of the first end 35a connected to the inner surface of the bottom 34. A stepped surface 38 is formed at a connecting portion between the first end portion 35a and the second end portion 35b. The fluid 12 that has entered the opening 35 only wets and spreads on the step surface 38, and does not spread on the outer surface 34 a of the bottom 34 of the container 31, so that a joining region surrounding the opening 35 is secured on the outer surface 34 a.

  In the container 1 described above, the wet spreading area of the overflowing fluid 12 is provided on the outer surface 4a of the bottom 4, and the joining area of the second seal member 11 and the wetting spreading area of the fluid 12 are on the same plane. However, in the container 31 of this example, the wetting and spreading region of the overflowing fluid 12 is the stepped surface 38 in the opening 35, and the outer surface 34 a of the bottom 34 where the joining region with the second seal member 11 is provided. Is on a different side. Accordingly, the second seal member 11 can be more reliably joined to the outer surface 34a of the bottom 34.

  FIG. 13 shows a modified example of the container 31.

  The container 31 shown in FIG. 13 has a plurality of annular ribs 36 formed on the outer surface 34 a of the bottom 34. Each of these ribs 36 is provided so as to surround the opening 35 along the edge of the opening 35. These ribs 36 have a function of blocking the wetting and spreading of the fluid 12 like the ribs 6 in the container 1 described above, and are crushed when the second sealing member 11 is welded and the container 31 is sealed. The second seal member 11 is welded to the tip portion of each rib 36.

  By providing the rib 36 as a crushing allowance, it is possible to absorb molding errors of each part of the container 31 having the plurality of openings 35 in the bottom 34 and to securely seal each opening 35. Furthermore, when sealing the several container 31 at once with the above-mentioned sealing apparatus 100, the shaping | molding error for every container 31 is absorbed and each container 31 can be sealed reliably.

  It is preferable that the tip of the rib 36 to which the second seal member 11 is welded is a flat surface. According to this, it is possible to sufficiently secure a bonding area in welding and improve sealing performance. Further, when the second seal member 11 is made of a film made of a thermoplastic resin and is laminated with a metal foil such as aluminum, the film can be prevented from being pierced and thereby laminated. It is possible to prevent the metal foil from being exposed to the fluid 12 and corroding.

  As described above, the present specification discloses the following containers (1) to (6).

(1) It has a cylindrical shape, one end is opened, and the other end is joined to a container body having a bottom, and an open end face of the container body is joined to seal the open end. A container having an inlet formed in a partial region of the bottom.
(2) The container according to (1), wherein the inlet has an opening at the second end connected to the outer surface of the bottom as compared to an opening area of the first end connected to the inner surface of the bottom. A container formed in a step shape with a large area.
(3) The container according to (2), wherein a rib is formed on the outer surface of the bottom so as to surround the inlet along the edge of the inlet.
(4) The container according to (3) above, wherein a tip end portion of the rib is a flat surface.
(5) The container according to (1), wherein a rib is formed on the outer surface of the bottom so as to surround the inlet with a distance from an edge of the inlet.
(6) The container according to any one of (1) to (5) above, wherein the first seal member can be broken by pressing.

  In addition, the following (7) and (8) portion packs are disclosed in this specification.

(7) A portion pack in which a fluid is housed in any one of the above (1) to (6), a second seal member is joined to the outer surface of the bottom, and the injection port is sealed.
(8) A portion pack in which a fluid is housed in the container of (3) or (4) above, a second seal member is joined to the outer surface of the bottom, and the inlet is sealed. 2 is a portion pack in which the seal member is welded to the tip of the rib and joined to the outer surface of the bottom.

  Further, in the present specification, the above-mentioned note is provided in a container having a cylindrical shape, one open end sealed with a first seal member, and an inlet formed on the bottom provided at the other end. A method for manufacturing a portion pack is disclosed in which a fluid is injected through an inlet, a second seal member is joined to the outer surface of the bottom of the container into which the fluid is injected, and the inlet is sealed.

  Further, in the present specification, the first seal member is broken, the filling that fits in the container is inserted into the container through the open end, and the portion pack that pushes out the fluid contained in the container is opened. A method is disclosed.

  Also, in the method for opening a portion pack disclosed in the present specification, the first seal member is pressed against the front surface of the filling facing in the direction of insertion into the container and is broken.

DESCRIPTION OF SYMBOLS 1 Container 2 Container main body 3 Seal member 4 Bottom 4a Outer surface 4b Inner surface 5 Opening (injection port)
6 Rib 7 Open end 7a End surface 10 Portion pack 11 Seal member 12 Fluid 20 Opening tool 21 Substrate part 22 Projection part 23 Claw part 100 Sealing device 100 Container sealing device 101 Transfer means 102 Supply means 102 Supply part 103 Feed means 104 Injection means 105 Joining means 106 Cutout means 107 Separating means 108 Pallet 110 Guide rail 111 Engaging member 112 Drive mechanism 113 Base 114 Pin 115 Lifting drive mechanism 116 Translation drive mechanism 120 Sealing material 121 Material roll 122 Roll 123 Auxiliary roll 130 Grip mechanism 140 Dispenser 150 Thermal welding head 160 Laser marker 170 Sliding member 171 Roller

Claims (11)

A container body having a cylindrical shape, one end being opened and the other end being provided with a bottom;
A first seal member joined to the open end face of the container body and sealing the open end;
With
A container having an inlet formed in the bottom. The container according to claim 1,
The container is formed in a step shape in which the opening area of the second end connected to the outer surface of the bottom is larger than the opening area of the first end connected to the inner surface of the bottom. A container according to claim 2,
A container in which a rib surrounding the inlet is formed on an outer surface of the bottom along an edge of the inlet. A container according to claim 3,
A container in which a tip portion of the rib is a flat surface. The container according to claim 1,
A container in which a rib surrounding the inlet is formed on the outer surface of the bottom at a distance from an edge of the inlet. A container according to any one of claims 1 to 5,
A container in which the first seal member can be broken by pressing.   A portion pack in which a fluid is housed in the container according to any one of claims 1 to 6, a second seal member is joined to the outer surface of the bottom, and the injection port is sealed. A potion pack in which a fluid is contained in the container according to claim 3 or 4, wherein a second seal member is joined to an outer surface of the bottom, and the inlet is sealed.
The second seal member is a portion pack welded to a tip end portion of the rib and joined to the outer surface of the bottom. A fluid is injected through the injection port into a container having a cylindrical shape and one open end sealed with a first seal member and an injection port formed in the bottom provided at the other end. And
A method for manufacturing a portion pack in which a second seal member is joined to an outer surface of the bottom of the container into which the fluid has been injected, and the injection port is sealed. A method for opening a portion pack according to claim 7,
Breaking the first seal member;
The opening method of the portion pack which inserts the filling which fits in the said container in the said container through the said open end, and extrudes the fluid accommodated in the said container. A method for opening a portion pack according to claim 7,
A method for opening a portion pack in which the first seal member is pressed against the front surface of the filling facing in the direction of insertion into the container and broken.

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