JP5634122B2 - Container manufacturing method and container manufacturing apparatus - Google Patents

Description

  The present invention relates to a technique for constructing a container that accommodates an accommodation article in an accommodation space.

  Conventionally, the container described in Patent Document 1 is known. The container described in Patent Document 1 inserts a nozzle device into a bag body, supplies gas into the bag body, retracts the nozzle device, and seals the bottom opening edge of the bag body. ing.

JP 2001-122345 A

Since the conventional container is sealed in a pressurized state, the bonding strength cannot be sufficiently ensured.
The present invention has been devised in view of such a point, and can accommodate the housing members constituting the housing for housing the housed articles in the pressurized housing space while maintaining the joining strength. Provide technology

The present invention, by joining the first housing member in which the first receiving surface of the concave is formed, a second housing member which second receiving surface concave or flat is formed, the The present invention relates to an accommodation body in which an accommodation space is formed by one accommodation surface and a second accommodation surface, and gas is injected into the accommodation space. The first housing member and the second housing member are formed of a synthetic resin sheet having a thickness of 50 μm to 200 μm, for example. Moreover, various gases can be used as the gas injected into the accommodation space, but air is preferably used. The pressure in the accommodation space is set to a value within a desired range. For example, the first storage surface or the second storage surface is set to have a restoring force that can prevent damage to the stored article due to an external force applied to the first storage surface or the second storage surface. .

1st invention is related with the container manufacturing method. The container manufacturing method of the present invention has the following configuration (process).
A concave first accommodating surface is formed on the first sheet (first accommodating surface forming step). Moreover, a concave or flat second storage surface is formed on the second sheet (second storage surface forming step).
Next, the first sheet and the second sheet are overlapped to form a storage space by the first storage surface and the second storage surface, and the storage space communicates with the gas injection opening through the gas passage. In this way, the first sheet and the second sheet are joined (primary sealing step). As the bonding method, a method of applying heat and pressure is preferably used. As the place where the primary seal is performed, an appropriate place where the accommodation space and the gas passage can be formed can be set. For example, it is possible to set all locations except for the locations of the edges of the storage space and the gas passage and the locations where the storage space and the gas passage are formed.
Next, gas is injected from the opening for gas injection, and the pressure in the accommodation space is set to atmospheric pressure or higher (gas injection step). As a method for injecting gas into the accommodation space, for example, a method in which a gas injection nozzle is inserted into the gas injection opening and gas is injected from the gas injection nozzle can be used.
After injecting gas into the accommodation space, the gas passage is temporarily blocked (gas passage blocking step). In this specification, the phrase “blocking the gas passage” means “temporarily closing an arbitrary portion of the gas passage so that gas cannot pass through the portion”. In the state where the gas passage is blocked, the pressure in the accommodation space is maintained. As a method for blocking the gas passage, a method capable of easily performing the blocking of the gas passage and the release of the blocking of the gas passage is used. Although the place which interrupts | blocks a gas passage can set the arbitrary places along a gas passage, the place near accommodation space (gas inlet of accommodation space) is set suitably.
Next, in a state where the gas passage is blocked, the first sheet and the second sheet are joined so as to close the gas passage (secondary sealing step). At this time, the gas injection from the gas injection opening is stopped. For example, a gas injection nozzle is taken out from the gas injection opening. As the bonding method, a method of applying heat and pressure is preferably used. The location where the secondary sealing is performed is preferably set at a location closer to the gas injection opening than the shut-off location. The secondary sealing may be performed at all locations between the blocking location and the gas injection opening, or may be performed at one or a plurality of locations. In this invention, since the location which performs a secondary seal is cut off from the accommodation space (joining is not performed in a pressurized state), sufficient joining strength can be ensured by the secondary seal.
Next, in a state where the secondary seal is performed, the blocking of the gas passage is released (gas passage blocking releasing step).
In this invention, since it does not join in a pressurization state, joining strength can be ensured, maintaining the pressurization state in a storage area.

As the gas injection opening, a gas injection hole (hole) formed in the first sheet or the second sheet is used. That is, a gas injection hole is formed in the first sheet or the second sheet (gas injection hole forming step). The gas injection hole is formed at an appropriate time until the primary sealing is performed. The gas injection hole can be formed by, for example, a punch.

In a different form of the first invention, the gas passage is blocked or released using a pressing member. For example, when blocking the gas passage, the pressing member is controlled to the operating position, and at least one of the first sheet and the second sheet is pressed in a direction approaching each other. On the other hand, when releasing the blocking of the gas passage, the pressing member is controlled to the standby position, and the pressing of at least one of the first sheet and the second sheet by the pressing member is released.
As the pressing member, for example, a pressing member that is provided corresponding to one of the first sheet and the second sheet and can be controlled to the operating position and the standby position, or the first sheet and the second sheet, respectively. A pair of pressing members provided correspondingly and controllable to the operating position and the standby position are used.

  In another different form of the first invention, the first sheet and the second sheet are cut at a location corresponding to the shape of the container after releasing the blocking of the gas passage (for example, vertical cutting, horizontal cutting). To do.

In another different form of the first invention , the first sheet and the second sheet are joined so that a gas passage is formed between the gas injection hole and the accommodating space.

The second invention relates to a container manufacturing apparatus. The container manufacturing apparatus of the present invention has the following configuration.
A first accommodation surface forming portion that forms a concave first accommodation surface on the first sheet, and a second accommodation surface formation portion that forms a concave or planar second accommodation surface on the second sheet. ing. Typically, at least one of the first accommodation surface forming portion and the second accommodation surface forming portion forms a concave accommodation surface by deep drawing.
Further, in the state where the first sheet and the second sheet are overlapped, an accommodation space is formed by the first accommodation surface and the second accommodation surface, and the accommodation space is opened to the gas injection opening through the gas passage. A first seal portion (primary seal portion) that joins (primary seal) the first sheet and the second sheet so as to communicate with each other is provided. The first seal portion preferably applies heat and pressure to join the first sheet and the second sheet. As the place where the primary seal is performed, an appropriate place where the accommodation space and the gas passage can be formed can be set.
Moreover, the gas injection part which injects gas from the opening for gas injection is provided. The gas injection part has, for example, a gas injection nozzle that is inserted into the gas injection opening.
Moreover, the gas path interruption | blocking part which can be controlled to the state which interrupted | blocked the gas path and the state which interrupted | blocked the gas path is provided. In this specification, the phrase “blocking the gas passage” means “temporarily closing an arbitrary portion of the gas passage so that gas cannot pass through the portion”. The gas passage blocking unit can block any portion along the gas passage, but preferably blocks a portion close to the accommodation space (gas inlet of the accommodation space). The gas passage blocking unit blocks the gas passage when performing secondary sealing, and releases the blocking of the gas passage after performing secondary sealing.
Moreover, the 2nd seal | sticker part (secondary seal part) which joins a 1st sheet | seat and a 2nd sheet | seat (secondary seal) so that a gas channel | path may be plugged up is provided. The second seal portion preferably joins the first sheet and the second sheet at a location closer to the gas injection opening than the blocking location. The location where the secondary sealing is performed is performed at all locations or between one location or a plurality of locations between the shut-off location and the gas injection opening.
In the present invention, since bonding in a pressurized state can be prevented, the bonding strength can be ensured while maintaining the pressurized state in the accommodation section.

As the gas injection opening, a gas injection hole (hole) formed in the first sheet or the second sheet is used. In this case, a gas injection hole forming part for forming a gas injection hole in the first sheet or the second sheet is provided. The gas injection hole forming part has, for example, a punch for forming a hole (hole) in the first seal or the second seal.

  In a different form of the second invention, the gas passage blocker includes an operating position for pressing at least one of the first sheet and the second sheet in a direction approaching each other, and at least one of the first sheet and the second sheet. It has a pressing member that can be moved to a standby position for releasing one of the pressings. When performing secondary sealing, the gas passage blocking unit controls the pressing member to the operating position to block the gas passage, and after performing the secondary sealing, controls the pressing member to the standby position to release the blocking of the gas passage. To do. As the pressing member, for example, a pressing member that is provided corresponding to one of the first sheet and the second sheet and can be controlled to the operating position and the standby position, or the first sheet and the second sheet, respectively. A pair of pressing members provided correspondingly and controllable to the operating position and the standby position are used.

  In another different form of the second invention, the first sheet and the second sheet are cut at a location corresponding to the shape of the container after releasing the blocking of the gas passage (for example, vertical cutting, horizontal cutting). A cutting part is provided.

In another different form of the second invention, the first seal portion joins the first sheet and the second sheet so that a gas passage is formed between the gas injection hole and the accommodating space. .

  By using the container manufacturing method and the container manufacturing apparatus of the present invention, it is possible to manufacture a container that stores a stored article in a storage space in a pressurized state while maintaining bonding strength.

It is a perspective view of one embodiment of a container of the present invention. FIG. 2 is a view taken along line II in FIG. 1. It is a perspective view of the upper accommodating member and the lower accommodating member which comprise the accommodating body of one Embodiment. It is the IV-IV line arrow directional view of FIG. It is a figure which shows the method of calculating | requiring a gravity center. It is a figure which shows the method of calculating | requiring a gravity center. It is a figure which shows the method of calculating | requiring a gravity center. It is a perspective view of other embodiment of the container of this invention. It is the IX-IX line arrow directional view of FIG. It is a figure which shows the example of a change of other embodiment of the container of this invention. It is a figure which shows the outline | summary of one Embodiment of the container manufacturing method of this invention. It is a figure which shows the outline | summary of one Embodiment of the container manufacturing apparatus of this invention. It is a figure which shows the outline | summary of the primary seal part (primary seal process) of one Embodiment of a container manufacturing apparatus. It is a figure which shows the outline | summary of the air passage interruption | blocking part (air passage interruption | blocking process) of one Embodiment of a container manufacturing apparatus. It is a figure which shows the outline | summary of the secondary seal part (secondary seal process) of one Embodiment of a container manufacturing apparatus. It is a figure which shows the outline | summary of the cutting part (cutting process) of one Embodiment of a container manufacturing apparatus. It is a figure which shows the outline | summary of the primary seal part (primary seal process) of other embodiment of a container manufacturing apparatus. It is a figure which shows the outline | summary of the air injection part (air injection process) of other embodiment of a container manufacturing apparatus. It is a figure which shows the outline | summary of the air passage interruption | blocking part (air passage interruption | blocking process) of other embodiment of a container manufacturing apparatus. It is a figure which shows the outline | summary of the air passage interruption | blocking part (air passage interruption | blocking process) of other embodiment of a container manufacturing apparatus. It is a figure which shows the outline | summary of the cutting part (cutting process) of other embodiment of a container manufacturing apparatus.

Below, 10th Embodiment of the container of this invention is described with reference to FIGS. The container 10 of the present embodiment is configured as a container that can stand on a horizontal plane in a state where an article having a predetermined shape such as a cleaning tool is housed in the housing space. Of course, an article having an appropriate shape can be accommodated in the accommodation space. The outer shape of the container 10, for example, the outer shapes of the first housing member 20 and the second housing member 30 constituting the container 10 are appropriately changed according to the housed articles.
In the following description, the first direction 70, the second direction 80, and the third direction 90 are states where the container 10 is self-supporting on the horizontal plane (standing on the horizontal plane without an auxiliary member). The direction when viewed from the upper accommodation surface 33 side (left side in FIG. 2) is shown. The “first direction 70” represents the vertical direction (height direction) (the vertical direction in FIG. 2). “One side in the first direction 70” represents the lower side (the lower side in FIG. 2), and “the other side in the first direction 70” represents the upper side (the upper side in FIG. 2). The “second direction 80” represents the horizontal direction (left-right direction) (the front-rear direction in FIG. 2). “One side in the second direction” represents the right side (front side in FIG. 2), and “the other side in the second direction” represents the left side (rear side in FIG. 2). Further, the “third direction 90” represents the front-rear direction (the left-right direction in FIG. 2). "One side in the third direction represents the front side (left side in FIG. 2), and" the other side in the third direction "represents the rear side (right side in FIG. 2).
Further, unless otherwise specified, “concave” means a shape in which the accommodation space side is recessed, and “convex” means a shape protruding to the accommodation space side.

A schematic configuration of the container 10 of the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view of the container 10, and FIG. 2 is a view taken along the line II in FIG. FIG. 3 is a perspective view of the lower housing member 20 and the upper housing member 30 constituting the housing body 10.
The container 10 of the present embodiment is configured by joining the lower housing member 20 and the upper housing member 30 shown in FIG. In addition, in this specification, the accommodating member arrange | positioned at the lower part among the accommodating members which comprise an accommodating body when the accommodating body 10 is self-supporting on a horizontal surface is called "lower accommodating member." The lower housing member 20 and the upper housing member 30 are formed of a sheet (film) that is flexible and has high sealing properties (gas barrier properties) and a high moisture-proof effect. As the sheet (film) forming the lower housing member 20 and the upper housing member 30, for example, a sheet made of nylon and polyethylene, having a basis weight of 180 g / m ² and a thickness of 50 μm to 200 μm is used. Of course, the material, basis weight, and thickness of the sheet are not limited thereto. Further, the lower housing member 20 and the upper housing member 30 can be formed of different sheets. Moreover, it is preferable that at least one of the lower accommodation member 20 and the upper accommodation member 30 has transparency that allows the accommodation article 400 to be visually recognized in a state where the accommodation article 400 is accommodated in the accommodation space 10a. For example, it is formed of a transparent sheet. The transparency with which the accommodation article 400 can be visually recognized in a state where the accommodation article 400 is accommodated in the accommodation section 10a has at least transparency that allows the appearance of the accommodation article 400 accommodated in the accommodation space 10a to be distinguished. Just do it.

The lower housing member 20 has a concave lower housing surface 23 that forms a concave lower housing space 20a. The concave lower accommodating surface 23 has a concave bottom accommodating surface 24 that forms a concave bottom surface 24a at the lower portion (one side in the first direction 70). That is, the lower accommodation surface 23 and the bottom accommodation surface 24 are formed in a concave shape in which the other side (upper side) in the first direction 70 is opened. The accommodation article 400 is fixedly disposed on the concave bottom surface 24a. The description “fixedly arranged” can prevent the accommodation article 400 from moving in the accommodation space 10a when the container 10 is transported, and the accommodation article 400 is removed from the concave bottom surface 24a. The structure in which the accommodation article 400 is fixed so that it can be shown is shown. An appropriate method can be used as a method of fixedly arranging the accommodated article 400 on the bottom surface 24a. For example, it is possible to use a method in which the accommodation article 400 is detachably attached to the mount and the mount is fixed on the bottom surface 24a with an adhesive tape or an adhesive. The bottom storage surface 24 is formed in a shape that allows the storage article 400 to be fixedly disposed on the concave bottom surface 24a, and the lower storage surface 23 is formed in a shape that can store the storage article in the storage space 10a.
The lower housing member 20 has a flange 22 extending from the edge 21 of the lower housing surface 23. In the present embodiment, the edge portion 21 includes a lower edge portion 21c disposed on one side (lower portion) in the first direction 70 and an upper edge portion 21a disposed on the other side (upper portion) in the first direction 70. The right edge 21b is disposed on one side (right side) of the second direction 80, and the left edge 21d is disposed on the other side (left side) of the second direction 80. The flange 22 is disposed on one side (lower side) in the first direction 70 from the lower edge 21c and extends along the second direction 80. The flange 22c is first from the upper edge 21a. An upper flange 22a that is disposed on the other side (upper side) of the direction 70 and extends along the second direction 80, and is disposed on one side (right side) of the second direction 80 from the right edge 21b. A right flange 22b extending along the direction 70, and a left flange 22d disposed on the other side (left side) of the second direction 80 from the left edge 21d and extending along the first direction 70. Yes. Further, the flanges 22a to 22d have edges. For example, the lower flange 22 c has a lower edge 22 c 1 on one side (lower side) in the first direction 70.
The lower housing member 20 corresponds to the “first housing member” of the present invention, the lower housing surface 23 corresponds to the “first housing surface” of the present invention, and the bottom surface 24a corresponds to the “concave shape” of the present invention. Corresponding to the “bottom surface”, the bottom accommodating surface 24 corresponds to the “bottom accommodating surface” of the present invention. The edge portion 21 corresponds to the “edge portion (first edge portion) of the first receiving surface” of the present invention, and the edge portions 21a to 21d are respectively the “first upper edge portion”, “ It corresponds to “first right edge”, “first lower edge”, and “first left edge”. Further, the flange 22 corresponds to the “first flange” of the present invention, and the flanges 22a to 22d are the “first upper flange”, “first right flange”, and “first lower portion” of the present invention, respectively. Corresponds to “flange” and “first left flange”. The lower edge 22c1 of the lower flange 22c corresponds to the “lower edge of the first lower flange” of the present invention.

The upper accommodation member 30 has an upper accommodation surface 33. The upper accommodation surface 33 is formed in a shape that can accommodate an accommodation article in the accommodation space 10a. In the present embodiment, the upper accommodation surface 33 has a concave shape and forms a concave upper accommodation space 30a. That is, the upper accommodating surface 33 is formed in a concave shape that is open on one side (lower side) in the first direction 70. The upper accommodation surface 33 may be planar.
Further, the upper accommodating member 30 has a flange 32 extending from the edge 31 of the upper accommodating surface 33. In the present embodiment, the edge 31 includes a lower edge 31c disposed on one side (lower) in the first direction 70 and an upper edge 31a disposed on the other side (upper) in the first direction 70. The right edge 31b is disposed on one side (right side) of the second direction 80, and the left edge 31d is disposed on the other side (left side) of the second direction 80. Further, the flange 32 is disposed on one side (lower side) in the first direction 70 from the lower edge portion 31c, and extends along the second direction 80. The flange 32 is first from the upper edge portion 31a. The upper flange 32a is disposed on the other side (upper side) of the direction 70 and extends along the second direction 80, and is disposed on one side (right side) of the second direction 80 from the right edge 31b. The right flange 32b extending along the direction 70 is disposed on the other side (left side) of the second direction 80 from the left edge 31d, and the left flange 32d extends along the first direction 70. Yes. Moreover, the flanges 32a to 32d have edges. For example, the lower flange 32 c has a lower edge portion 32 c 1 on one side (lower side) in the first direction 70.
The upper accommodation member 30 corresponds to the “second accommodation member” of the present invention, and the upper accommodation surface 33 corresponds to the “second accommodation surface” of the present invention. The edge portion 31 corresponds to the “edge portion (second edge portion) of the second receiving surface” of the present invention, and the edge portions 31a to 31d are respectively “second upper edge portion”, “ This corresponds to “second right edge”, “second lower edge”, and “second left edge”. The flange 32 corresponds to the “second flange” of the present invention, and the flanges 32a to 32d are respectively the “second upper flange”, the “second right flange”, and the “second lower portion” of the present invention. Corresponds to “flange” and “second left flange”. Further, the lower edge 32c1 of the lower flange 32c corresponds to the “lower edge of the second lower flange” of the present invention.

In the state where the lower housing member 20 and the upper housing member 30 are joined, the edges of the flanges 22a to 22d of the lower housing member 20 and the edges of the flanges 32a to 32d of the upper housing member 30 face each other. Is preferable, but may be shifted. The length (width) from the edges 21b to 21d of the flanges 22b to 22d of the lower housing member 20 and the length (width) from the edges 31b to 31d of the flanges 32b to 32d of the upper housing member 30 are, for example, 5 mm. -10 mm.
In addition, the container 10 of the present embodiment is configured to stand on a horizontal plane when the lower flange 22c (32c) and the bottom receiving surface 24 abut against the horizontal plane. Specifically, the lower edge 22c1 (32c1) of the lower flange 22c (32c) and the bottom receiving surface 24 abut against the horizontal plane. For this reason, the lower flange 22c (32c) is configured to have a self-supporting strength. For example, a sheet having a desired strength is used. Alternatively, the lower flanges 22c and 32c are joined so that the lower flange has a desired strength.

  As shown in FIG. 1 and FIG. 2, the lower housing member 20 and the upper housing member 30 are opposed to the lower housing surface 23 and the upper housing surface 33 (the edge 21 of the lower housing surface 23 and the upper housing surface 33). Are joined at the joint 11 in such a state that they are overlapped so that the edges 31 of the two face each other. In the present embodiment, the lower housing member 20 and the upper housing member 30 are formed at the upper joint portion 11a and the right edge portion 21b (31b) formed at the upper edge portion 21a (31a). They are joined at the right joint 11b, the lower joint 11c formed at the lower edge 21c (31c), and the left joint 11d formed at the left edge 21d (31d). The joint portions 11a to 11d have a width of about 3 mm, for example. The container 10 has a length (height) along the first direction 70 of about 250 mm, a length (width) along the second direction 80 of about 140 mm, and a third direction 90, for example. The length (depth) along is about 90 mm.

Air is injected into the accommodation space 10a. Here, the container 10 is more likely to stand by itself when the pressure in the storage space 10a is lower. On the other hand, in order to prevent damage to the accommodation article 400 due to external force applied to the lower accommodation surface 23 and the upper accommodation surface 33, the pressure in the accommodation space 10a is increased to restore the lower accommodation surface 23 and the upper accommodation surface 33. It is better to increase the nature.
In the present embodiment, the pressure in the accommodation space 10a is set in the range of five times atmospheric pressure to atmospheric pressure, and preferably in the range of three times atmospheric pressure to atmospheric pressure.

The container 10 of the present embodiment is configured to be self-supporting when the lower flanges 22c and 32c and the lower housing surface 23 are in contact with a horizontal plane. For this reason, it has the following structure.
The larger the area surrounded by the contact point between the lower flanges 22c and 32c and the horizontal surface and the contact point between the lower storage surface 23 and the horizontal surface, the higher the stability during self-supporting, and the Easy to fix. For this reason, in the present embodiment, the bottom accommodating surface 24 is formed so that the concave bottom surface 24a has a substantially planar shape extending substantially parallel to the horizontal plane in a state where the accommodating body 10 is self-standing on the horizontal plane. . And in this Embodiment, the lower accommodating surface 23 which has the bottom part accommodating surface 24 is formed by deep-drawing a sheet | seat.
Further, when viewed from one side (or the other side) of the first direction 70, the bottom accommodating surface 24 is formed so as to have a substantially arc-shaped outer peripheral shape. In this case, in a state where the container 10 is self-supporting on a horizontal plane, the container 10 and the horizontal plane are in contact with each other at the contact points T1 and T2 as shown in FIG. The contact portion T1 is a contact portion between the lower flange 22c and the lower flange 32c and the horizontal plane, and is disposed along the lower edge portion 22c1 of the lower flange 22c and the lower edge portion 32c1 of the lower flange 32c. The contact portion T <b> 2 is a contact portion between the bottom housing surface 24 and the horizontal surface, and is disposed along the outer peripheral shape of the bottom housing surface 24. In FIG. 4, the contact location T1 is disposed along a straight line, and the contact location T2 is disposed along an arc. The arrangement positions of the contact portions T1 and T2 are not limited to the positions shown in FIG. For example, the lower flange 22c and the lower flange 32c may not be flat due to heat or pressure when the lower housing member 20 and the upper housing member 30 are joined. In such a case, the lower edge portion 22c1 of the lower flange 22c and the lower edge portion 32c1 of the lower flange 32c do not become straight, and therefore the contact portion T1 is arranged along a curve, not a straight line.
The outer peripheral shape of the bottom receiving surface 24 is not limited to the arc shape. The contact portion T <b> 2 between the bottom housing surface 24 and the horizontal surface is disposed at a position corresponding to the outer peripheral shape of the bottom housing surface 24.

Further, in the container 10 of the present embodiment, the position of the center of gravity G is set to a position where the container 10 can easily stand on its own.
The position of the center of gravity G of the container 10 can be obtained by, for example, the method shown in FIGS. Holes 41, 42, and 43 are formed at three locations along the second direction 80 at the other end (upper) end in the first direction 70 of the upper flange 22 a (32 a) of the container 10. First, as shown in FIG. 5, the hole 41 is supported and hung in a free state. Then, as viewed from one side (front side) of the third direction 90, a perpendicular 41G passing through the hole 41 is determined. Next, as shown in FIG. 6, the hole 42 is supported and hung free. Then, as viewed from one side (front side) of the third direction 90, a perpendicular line 42G passing through the hole 42 is determined. Next, as shown in FIG. 7, the hole 43 is supported and hung in a free state. Then, as viewed from one side (right side) of the second direction 80, a perpendicular 43G passing through the hole 43 is determined. The point at which the perpendicular lines 41G, 42G, 43G determined as described above intersect is defined as the position of the center of gravity G of the container 10.
Next, as shown in FIG. 2, the container 10 is placed on the horizontal plane F so that the lower flange 22 c (32 c) and the bottom receiving surface 24 abut against the horizontal plane F. Then, a line g for projecting the center of gravity G of the container 10 perpendicularly to the horizontal plane F is drawn. At this time, as shown in FIG. 4, the line g represents a region S surrounded by the contact point T1 between the lower flanges 22c and 32c and the horizontal plane F and the contact point T2 between the bottom receiving surface 24 and the horizontal plane F. Configure to pass. The region S means a region having the largest area among regions surrounded by a line connecting the contact point T1 between the lower flanges 22c and 32c and the horizontal plane F and the contact point T2 between the bottom receiving surface 24 and the horizontal plane F. In addition, it is preferable that the line g passes through the center of the region S. By comprising in this way, the container 10 becomes easy to become independent in the state which the lower flange 22c (32c) and the bottom accommodating surface 24 contact | abutted to the horizontal surface.
In the container 10 of the present embodiment, the lower flanges 22c and 32c and the bottom receiving surface 24 come into contact with the horizontal plane F, so that the container 10 is self-supporting on the horizontal plane F. And 32c.

Further, the container 10 of the present embodiment is viewed from the one side (or the other side) in the second direction 80. The right side joint part 11b and the left side joint part 11d, that is, the right side flange 22b (32b) and the left side flange are provided. 22d (32d) is inclined.
As shown in FIG. 2, the right flange 22b (32b) and the left flange 22d (32d) have an upper end on the other side (upper side) in the first direction 70 on one side (lower side) in the first direction 70. It is inclined so as to be arranged on the other side (rear side) in the third direction 90, that is, on the lower accommodation surface 23 side, from the lower end portion of the side. In other words, when the lower flanges 22c and 32c of the container 10 and the bottom receiving surface 24 are in contact with the horizontal plane F, the right joint 11b and the left joint as viewed from one side (right side) in the second direction 80. 11d, that is, the right flange 22b (32b) and the left flange 22d (32d) have an angle θ (<90 degrees) with respect to a third direction (front-rear direction) parallel to the horizontal plane. In the present embodiment, the angle θ is set in the range of 75 degrees to 80 degrees. In this manner, the container 10 can easily stand by tilting the right joint 11b and the left joint 11d, that is, the right flange 22b (32b) and the left flange 22d (32d).
Note that the configuration in which the right flange 22b (32b) and the left flange 22d (32d) are inclined can be omitted.

In the above, the container 10 is made to stand on the horizontal plane F by bringing the lower edge 22c1 of the lower flange 22c and the lower edge 32c1 of the lower flange 32c and the bottom receiving surface 24 into contact with the horizontal plane F. Is not limited to this method. For example, a method in which at least one of the lower edge portion 22c1 of the lower flange 22c and the lower edge portion 32c1 of the lower flange 32c and the bottom receiving surface 24 are brought into contact with the horizontal plane F can be used. Alternatively, it is possible to use a method in which at least one of the location of the lower flange 22c other than the lower edge portion 22c1 and the location of the lower flange 32c other than the lower edge portion 32c1 and the bottom receiving surface 24 are brought into contact with the horizontal plane F.
Further, the lower edge portion 22c1 of the lower flange 22c and the lower edge portion 32c1 of the lower flange 32c may contact the horizontal plane F at the same location (opposing locations) or may contact the horizontal plane F at different locations. .

The container 10 according to the embodiment uses a configuration in which the lower flange 22c (32c) and the lower storage surface 23 (bottom storage surface 24) are self-supporting on the horizontal plane, but is configured to be independent on the horizontal plane only by the lower storage surface. Can also be used. A container 110 according to another embodiment is shown in FIGS. FIG. 8 is a perspective view of the container 110 according to another embodiment, and FIG. 9 is a view taken along line IX-IX in FIG.
Similar to the container 10, the container 110 according to the present embodiment includes a lower housing member 120 and an upper housing member 130. The container 110 of the present embodiment is different from the lower container 20 of the container 10 in the configuration of the lower container member 120. Therefore, below, the structure of the lower accommodating part 120 is mainly demonstrated.
The lower housing member 120 has a lower housing surface 123 that forms a lower housing space 120a. The lower housing surface 123 has concave bottom housing surfaces 124 and 125 and a convex bottom housing surface 126 for forming a convex bottom surface on one side (lower portion) in the first direction 70. The concave bottom receiving surface 124 forms a concave bottom surface 124a, the concave bottom receiving surface 125 forms a concave bottom surface 125a, and the convex bottom receiving surface 126 forms a convex bottom surface 126a. In the present embodiment, the concave bottom receiving surfaces 124 and 125 are formed along the outer periphery of the convex bottom receiving surface 126. And the accommodation article 400 is fixed and attached on the convex bottom face 126a. The “concave shape” means a shape that is recessed on the accommodation space 110a side, and the “convex shape” means a shape that protrudes on the accommodation space 110a side.
The convex bottom receiving surface 126 is formed in a shape that allows the stored article 400 to be fixedly disposed on the convex bottom surface 126a. For example, in a state where the container 110 is self-standing on a horizontal plane, the convex bottom receiving surface 126 is formed so that the convex bottom surface 126a has a substantially planar shape extending substantially parallel to the horizontal plane.

The container 110 of the present embodiment is configured to be self-supporting when the concave bottom housing surfaces 124 and 125 of the lower housing member 120 abut against a horizontal plane. In a state where the concave bottom receiving surfaces 124 and 125 are in contact with the horizontal plane, a line g obtained by projecting the center of gravity G of the container 110 perpendicularly to the horizontal plane is a contact point between the concave bottom receiving surface 124 and the horizontal plane. T1 is configured to pass through a region S surrounded by a contact point T2 between the concave bottom receiving surface 125 and the horizontal plane. The region S means a region having the largest area among regions surrounded by a line connecting the contact point T1 between the concave bottom receiving surface 124 and the horizontal plane and the contact point T2 between the concave bottom receiving surface 125 and the horizontal plane.
In addition, the container 110 of the present embodiment has a right joint and a left joint, that is, a right flange 122b (132b) and a left flange 122d (132d) in the second direction 80, similar to the container 10. Inclined when viewed from one side. The configuration in which the right flange 122b (132b) and the left flange 122d (132d) are inclined may be omitted.

The concave bottom receiving surfaces 124 and 125 are formed in a suitable shape in which the container 400 can be fixedly disposed on the convex bottom surface 126a, the container 110 can stand on a horizontal plane, and at a suitable position. Be placed.
In the present embodiment, as shown in FIG. 9, the concave bottom receiving surface 124 is formed substantially parallel to the second direction 80 (lower flange), and the concave bottom receiving surface 125 is a concave shape. It is formed along a substantially arc extending from both ends of the bottom receiving surface 124. That is, the concave bottom receiving surfaces 124 and 125 are continuously formed. In this case, the contact portion T1 between the concave bottom receiving surface 124 and the horizontal plane is arranged along a straight line (including a substantially straight line), and the contact portion T2 between the concave bottom receiving surface 125 and the horizontal plane is an arc ( (Including a substantially arc).
The concave bottom receiving surfaces 124 and 125 may be in contact with the horizontal plane at least partially along the straight line and the arc. For example, as shown in FIG. 10, the concave bottom accommodating surface 124 abuts against the horizontal surface at a part of the abutting portion T11 along the straight line, and the concave bottom accommodating surface 125 has a plurality of arcs along the arc. The abutting portions T21 and T22 may be configured to abut against the horizontal plane.

When the concave bottom receiving surface 24 of the container 10, the concave bottom receiving surfaces 124 and 125 of the container 110, and the convex bottom receiving surface 126 are formed by deep drawing, the thickness of the sheet of the deep drawn portion May become thin and the strength may decrease. Therefore, rubber or the like may be provided in the deep drawing portion to increase the strength.
Moreover, the deeply drawn portion has a curved shape and is easy to slip. For this reason, rubber | gum etc. may be provided in a deep drawing part and you may make it prevent a slip.
Moreover, in order to make it easy to take out the accommodation article 400 from the accommodation space, an opening assisting portion may be provided. For example, a notch is formed in the container. Or the part (part which is not adhere | attached) which is easy to peel is formed in a container.
In addition to the state in which the stored article 400 is fixedly disposed on the concave bottom surface 24a of the container 10 (or on the convex bottom surface 126a of the container 110), the stored article 400 is stored in the storage space. Even in a state where it is not, it is preferable that it can stand on a horizontal plane. That is, in a state where the storage article 400 is not stored in the storage space, at least one of the lower flanges 22c and 32c of the storage body 10 and the bottom storage surface 24 (or the concave bottom storage surfaces 124 and 125 of the storage body 110). It is preferable that a line obtained by projecting the center of gravity of the container 10 (110) perpendicularly to the horizontal plane passes through a region surrounded by the contact portion when the is placed on the horizontal plane.
Further, when the container 10 (or the container 110) is placed on a horizontal plane in a state where the stored article 400 is not stored in the storage space, the center of gravity of the container 10 (or the container 110) is perpendicular to the horizontal plane. Even if the projected line does not pass through the region surrounded by the contact portion, the stored article 400 is fixedly disposed on the concave bottom surface 24a of the container 10 (or on the convex bottom surface 126a of the container 110). In this state, it is only necessary that a line obtained by projecting the center of gravity of the container 10 (or the container 110) perpendicularly to the horizontal plane passes through a region surrounded by the contact portion.

As described above, the container of the present invention is soft because the entire body is formed of a flexible sheet. Thereby, handling is easy. Moreover, since it becomes small at the time of disposal, disposal is easy. Also, the cost is low.
Since it has the bottom accommodating surface for fixedly arranging the accommodated articles, the accommodating capacity can be increased.
Since the inside of the accommodation space is pressurized, it is possible to prevent the accommodation article from being damaged by an external force applied to the upper accommodation surface and the lower accommodation surface. Moreover, even if the upper housing surface and the lower housing surface are depressed by an external force, they are restored.

Next, a method for producing the container of the present invention will be described. An outline of one embodiment of the container manufacturing method of the present invention is shown in FIG. In addition, the container manufacturing method shown by FIG. 11 is suitable for manufacturing the container in which the pressure in the storage space 10a is set to atmospheric pressure or more.
The process P1 is a lower accommodation surface forming process. In the process P1, the lower accommodation surface of the lower accommodation member is formed on the first sheet. The lower housing surface of the housing body of the present embodiment has a concave bottom housing surface that forms a concave bottom surface (or a concave bottom housing surface and a convex bottom housing surface that forms a convex bottom surface). ing. For this reason, in the process P1, the lower accommodating surface which has a concave bottom accommodating surface (or a concave bottom accommodating surface and a convex bottom accommodating surface) is formed by deep drawing. Of course, various processing methods can be used for forming the lower receiving surface. The process P1 corresponds to the “first accommodation surface forming process” of the present invention.
Process P2 is an air injection hole forming process. In the process P2, an air injection hole used as an air injection opening for injecting air into the accommodation space is formed in the first sheet. The process P2 corresponds to the “gas injection hole forming process” of the present invention.
Process P3 is a stored article supply process. In the process P3, the accommodated article is supplied into the lower accommodation space formed by the lower accommodation surface of the first sheet. At this time, the accommodated article is fixedly disposed on the bottom surface formed by the bottom accommodating surface so as not to move in the accommodating space during transportation or the like. Process P3 corresponds to the “contained article supply process” of the present invention.
Process P4 is an upper receiving surface forming process. In step P4, the upper accommodation surface of the upper accommodation member is formed on the second sheet. As a processing method for forming the upper receiving surface, various processing methods can be used according to the shape of the upper receiving surface. The process P4 corresponds to the “second accommodation surface forming process” of the present invention.
Process P5 is a sheet stacking process. In step P5, the first sheet on which the lower accommodation surface is formed and the second sheet on which the upper accommodation surface is formed are overlapped. At this time, preferably, the first sheet and the second sheet are arranged so that the lower accommodation surface and the upper accommodation surface face each other, that is, the edge of the lower accommodation surface and the edge of the upper accommodation surface face each other. Overlapping. Process P5 corresponds to the “sheet stacking process” of the present invention.
In addition, although the air injection hole which inject | pours air was formed in the 1st sheet | seat, it can also be formed in a 2nd sheet | seat. When the air injection hole is formed in the second sheet, the process P2 is deleted, and an air injection hole forming process is provided between the process P4 and the process P5.

Process P6 is a primary sealing process. In step P6, the first sheet and the second sheet are joined at a place other than the air passage (primary sealing). That is, a storage space is formed by the lower storage space and the upper storage space, and air is injected into the storage space between the air injection hole formed in the first sheet (or the second sheet) and the storage space. It joins so that the air passage for doing may be formed. The first sheet and the second sheet are preferably joined at the edge of the lower housing space and the edge of the upper housing space. Of course, other locations may be joined. In the primary sealing step, typically, the first sheet and the second sheet are heated to melt above the softening point of the sheet material, the melted part is pressurized and fused, and the fused part is cooled. To form a joint. That is, the primary sealing process includes a heating process, a pressurizing process, and a cooling process. Of course, the method of joining the first sheet and the second sheet is not limited to this. Process P6 corresponds to the “primary sealing process” of the present invention.
Process P7 is an air injection process. In step P7, air is injected into the accommodation space from the air injection hole through the air passage. For example, an air injection nozzle is inserted into the air injection hole, and air is injected from the air injection nozzle into the accommodation space through the air passage and the zero air inlet. At this time, the pressure in the accommodation space is set to be equal to or higher than atmospheric pressure, for example, within a range of five times atmospheric pressure to atmospheric pressure, and preferably within a range of three times atmospheric pressure to atmospheric pressure. In the present embodiment, air corresponds to the “gas” of the present invention, the air injection hole corresponds to the “gas injection hole” of the present invention, and the process P7 corresponds to the “gas injection process” of the present invention. To do.
Process P8 is an air passage blocking process. Process P8 is for preventing the subsequent secondary seal from being performed in a pressurized atmosphere by temporarily blocking the air passage. As the location for blocking the air passage, a location on the accommodation space side of the air passage, for example, a location near the air inlet of the accommodation space is preferably set. As a method of temporarily blocking the air passage, it is preferable to use a method of pressing at least one of the first sheet and the second sheet in a direction in which the first sheet and the second sheet approach each other. Can do. For example, a pair of pressing members that are arranged to face each other and can be controlled to a standby position and an operating position can be used. When the pressing member is controlled to the operating position, the first sheet and the second sheet are pressed toward each other, and the air passage is blocked. Various other methods can be used as a method of blocking the air passage. Process P8 corresponds to the “gas passage blocking process” of the present invention. In the present specification, the phrase “blocking the gas passage” means “temporarily closing an arbitrary portion of the gas passage so that the gas cannot pass through the portion”.

Process P9 is a secondary sealing process. In step P9, the first sheet and the second sheet are joined at the air passage. This step P9 is preferably performed in a state where the accommodation space side of the air passage is shut off and the injection of air from the air injection hole is stopped (for example, the air injection nozzle is removed from the air injection hole). Is called. The secondary seal is performed at all or a part of the location between the location where the air passage is blocked and the air injection hole. The secondary sealing process typically includes a heating process, a pressurizing process, and a cooling process, similarly to the primary sealing process. Process P9 corresponds to the “secondary sealing process” of the present invention. Since the secondary sealing step is not performed in a pressurized atmosphere, the bonding strength can be ensured.
Process P10 is an air passage blockage cancellation process. In step P10, the air passage is unblocked. For example, when a pressing member is used, the pressing member is controlled to the standby position. Thereby, the pressing to at least one of the first sheet and the second sheet is released, and the blocking of the air passage is released. Process P10 corresponds to the “gas passage blocking release process” of the present invention.
Process P11 is a cutting process. In step P11, the first sheet and the second sheet that have been subjected to the primary seal and the secondary seal are cut at cutting points corresponding to the shape, size, and the like of the container. For example, longitudinal cutting along the longitudinal direction of the first and second sheets and transverse cutting along the direction intersecting the longitudinal direction are performed. Step P10 corresponds to the “cutting step” of the present invention.
In addition, the container manufacturing method of this invention is not limited to the structure shown by FIG. For example, the processing method of each process shown in FIG. 11, the order of executing the processes of each process, and the like can be changed as appropriate.

Next, the manufacturing apparatus which manufactures the container of this invention is demonstrated. An outline of an embodiment of the container manufacturing apparatus of the present invention is shown in FIG. The container manufacturing apparatus shown in FIG. 12 is suitable for manufacturing a container in which the pressure in the storage space 10a is set to atmospheric pressure or higher.
The container manufacturing apparatus shown in FIG. 12 includes a lower storage surface forming unit 500, an air injection hole forming unit 510, a stored article supply unit 520, an upper storage surface forming unit 530, a sheet stacking unit 540, and a primary seal unit 550. , An air injection section 560, an air passage blocking section (air path blocking release section) 570, a secondary seal section 580, and a cutting section 590.

The operation of each unit shown in FIG. 12 will be described with reference to FIGS.
The lower accommodation surface forming unit 500 forms a lower accommodation surface 223 having a bottom accommodation surface on the first sheet 220. In the present embodiment, the lower accommodation surface forming unit 500 forms the lower accommodation surface 223 by deep drawing. The lower receiving surface forming unit 500 can be configured as a processing apparatus that forms the lower receiving surface 223 using a known processing method. A lower receiving space 220a is formed by the lower receiving surface 223. The lower accommodation surface forming portion 500 corresponds to the “first accommodation surface forming portion (first accommodation surface forming step)” of the present invention.
The air injection hole forming unit 510 forms an air injection hole 228 used as an air injection opening for injecting air into the accommodation space in the first sheet 220. In the present embodiment, an air injection hole 228 is formed between adjacent lower accommodation surfaces 223. In the present embodiment, the air injection hole forming unit 510 forms the air injection hole 228 in the first sheet 220 using the punching punch 240. As a member for forming the air injection hole 228 in the first sheet 220, various members other than the punching punch 240 can be used. The shape of the air injection hole 228 is appropriately set. In the present embodiment, the air injection nozzle is formed into a shape that can be inserted. The air corresponds to the “gas” of the present invention, the air injection hole 228 corresponds to the “gas injection opening” of the present invention, and the air injection hole forming portion 510 corresponds to the “gas injection hole forming portion ( This corresponds to “gas injection hole forming step”.
The accommodation article supply unit 520 supplies the accommodation article 400 to the lower accommodation space 220 a formed by the lower accommodation surface 223 of the first sheet 220. The accommodation article 400 is fixedly arranged on a concave bottom surface formed by the bottom accommodation surface of the lower accommodation surface 223 so that the accommodation article 400 does not move in the accommodation space during transportation or the like. The accommodation article supply unit 520 corresponds to the “accommodation part article supply unit” of the present invention.

The upper accommodation surface forming unit 530 forms the upper accommodation surface 233 on the second sheet 230. The upper receiving surface forming part 530 can be configured as a processing device that forms the upper receiving surface 233 using a known processing method. The upper accommodation surface forming portion 530 corresponds to the “second accommodation surface forming portion (second accommodation surface forming step)” of the present invention.
The sheet stacking unit 540 stacks the first sheet 220 and the second sheet 230. Preferably, the lower accommodation surface 223 of the first sheet 220 and the upper accommodation surface 233 of the second sheet 230 face each other (the edge of the lower accommodation surface 223 and the edge of the upper accommodation surface 233 face each other). To). The sheet overlap portion 540 corresponds to the “sheet overlap portion (sheet overlap step)” of the present invention.
Note that the air injection hole 228 can also be formed in the second sheet 230. In the case where the air injection hole 228 is formed in the second sheet 230, the air injection hole forming part 510 is provided between the upper accommodation surface forming part 520 and the sheet overlapping part 540.

The primary seal portion 550 is configured such that a housing space is formed by the lower housing surface 223 and the upper housing surface 233, and the air injection hole 228 and the housing space (housing) are accommodated in the stacked first sheet 220 and second sheet 230. It joins (primary seal) so that the air passage 213 may be formed between the air inlet 212 of the space. For example, the first sheet 220 is provided at a position of the edge of the lower accommodation surface 223 and the edge of the upper accommodation surface 233 except for the air passage 213 between the air injection hole 228 and the air inlet 212 of the accommodation space. And the 2nd sheet | seat 230 are joined, and the junction part 250 (1st junction part) is formed (refer FIG. 13). In addition, a junction location should just be able to form accommodation space and the air channel | path 213, and is not limited to the location shown in FIG. The primary seal portion 550 corresponds to the “primary seal portion (primary seal step)” of the present invention.
The primary seal unit 550 includes, for example, a heating unit that heats the first sheet 220 and the second sheet 230 to melt the sheet material, and a pressurizing unit that pressurizes and melts the melted portion. (Pressing portion) and a cooling portion that cools the fused portion to form a joint portion. Various heating parts can be used as the heating part. For example, it is possible to use a heating section that is heated by heat generated from a heater wire to which a low voltage and a large current are supplied for a short time (impulse welding method). Moreover, the heating part heated with the radiant heat of the hot plate heated to high temperature can be used (non-contact hot plate welding method). Moreover, the heating part (contact hot plate welding method) which contacts and heats the hot plate heated to high temperature can be used. Moreover, the heating part heated by the frictional heat which generate | occur | produces by pressurizing a circular molded product and rotating it at high speed can be used (spin welder welding method). In addition, a heating unit that is heated by heat generated by the molecular motion of the plastic due to a change in high-frequency polarity can be used (high-frequency induction heating fusion method). Also, use a heating unit that fuses the joints by forming the joints of the sheets to be joined into a mating shape, inserting a metal body (needle crutch etc.), and applying a high frequency to the joints. (Electromagnetic induction heating welding method). In addition, a heating part that heats and welds the laser beam can be used (laser heating welding method). Moreover, the heating part heated by transmitting the vibration of the metal member which vibrates at high speed (for example, amplitude of 50 μm or less at 15 kHz to 40 kHz) can be used (ultrasonic heating method).
In addition, a heating part and a pressurization part can also be provided in one apparatus.
As a joining method for joining the first sheet 220 and the second sheet 230, various other well-known joining methods can be used.

The air injection unit 560 injects air into the accommodation space. In the present embodiment, a nozzle (air injection nozzle) 260 is inserted into the air injection hole 228. Then, air is injected from the nozzle 260 into the accommodation space via the air passage 213 and the air inlet 212. For example, the pressure in the accommodation space is set within the range of five times the atmospheric pressure to the atmospheric pressure, preferably within the range of three times the atmospheric pressure to the atmospheric pressure. The air injection part 560 corresponds to the “gas injection part (gas injection process)” of the present invention.
The air passage blocking unit 570 temporarily blocks the air passage after injecting air into the accommodation space. Preferably, the location on the accommodation space side (air inlet 212 side) of the air passage 213 is blocked. In the present embodiment, air passage blocking unit 570 has a pair of pressing members 270 that face each other. The pair of pressing members 270 are an operation position for pressing the first sheet 220 and the second sheet 230 in a direction approaching each other, and a standby position for releasing the pressure on the first sheet 220 and the second sheet 230. Can be controlled. The air passage blocking section 570 moves the pair of opposing pressing members 270 to the operating position, and the first seat 220 and the first seat 220 are located at the accommodation space side of the air passage 213 (near the air inlet 212 of the accommodation space). The second sheet 230 is brought into contact (see FIG. 14). Thereby, even if the injection of air from the air injection hole 228 is stopped, the pressure in the accommodation space does not decrease. The pressing member 270 corresponds to the “pressing member” of the present invention, and the air passage blocking portion 570 corresponds to the “gas passage blocking portion (gas passage blocking step)” of the present invention. In order to bring the first sheet 220 and the second sheet 230 into contact with each other, at least one of the first sheet 220 and the second sheet 230 may be pressed in a direction approaching the other. Therefore, the air passage blocker 570 only needs to have a pressing member that presses at least one of the first sheet 220 and the second sheet 230 in a direction approaching the other.

The secondary seal portion 580 joins the first sheet 220 and the second sheet 230 (secondary seal) so that the air passage 213 is closed while the air passage 213 is blocked by the pressing member 270. To do. For example, a joint portion 280 (second joint portion) that joins the first sheet 220 and the second sheet 230 to a portion between the air passage 213 that is blocked by the blocking member 270 and the air injection hole 228. ) (See FIG. 15). The joint 280 is not required to communicate between the air injection hole 228 and the accommodation space (air inlet 213) when the pressing by the pressing member 270 is released. You may form in the location of a part. Similar to the primary seal portion 550, the secondary seal portion 580 heats the first sheet 220 and the second sheet 230 to melt the sheet material, and pressurizes (presses) the melted portion. And a pressure part (pressing part) to be fused and a cooling part that cools the fused part to form a joint part. When the joint portion 280 is formed by the secondary seal portion 580, the air injection operation is stopped. For example, the air injection nozzle 260 is pulled out from the air injection hole 228. Thereby, since the location which forms the junction part 280 is not in a pressurization state, the joining strength of the junction part 280 is securable. Further, since the space between the air injection hole 228 and the accommodation space (air inlet 212) is blocked by the pressing member 270, secondary sealing can be performed in a state where the pressure in the accommodation space is maintained within the set range. . The secondary seal portion 580 corresponds to the “secondary seal portion (secondary seal step)” of the present invention.
The air passage blocking unit 570 releases the blocking of the air passage after the secondary seal is performed by the secondary seal unit 580. For example, the pair of pressing members 270 are controlled to a standby position for releasing the pressing on the first sheet 220 and the second sheet 230. The air passage blocking section 270 corresponds to the “air path blocking release section (air path blocking release step)” of the present invention.
The cutting unit 590 cuts the first sheet 220 and the second sheet 230 on which the primary seal and the secondary seal have been applied by a cutting member (cutter) 290 (for example, longitudinal cutting along the longitudinal direction, longitudinal direction) Cross cut along the intersecting direction) to obtain the container 10 (see FIG. 16). The cutting part 590 corresponds to the “cutting part (cutting step)” of the present invention.

In the above, the air injection hole 228 used as the air injection opening is formed in the first sheet 220 or the second sheet 230, but the method of forming the air injection opening (gas injection opening) is limited to this. Not. The outline | summary of other embodiment of a container manufacturing apparatus (container manufacturing method) is demonstrated referring FIGS. In the present embodiment, an opening formed by the edge of the first sheet and the edge of the second sheet is used as the air injection opening. In the following, only the main part of the present embodiment will be described in a simplified manner.
In the present embodiment, the air injection hole forming step P2 shown in FIG. 11 and the air injection hole forming part 510 shown in FIG. 12 can be omitted.
As shown in FIG. 17, the accommodation space and the accommodation space (the air inlet 312 of the accommodation space) are opened through the air passage 313 in a state where the first sheet 320 and the second sheet 330 are overlapped. A joining portion (primary seal) 350 for joining the first sheet 320 and the second sheet 330 is formed so as to communicate with 313a. In the present embodiment, the opening 313 a is formed between the edge of the first sheet 320 and the edge of the second sheet 330. FIG. 17 corresponds to “primary seal portion (primary seal step) 550” of FIG.
Next, as shown in FIG. 18, an air injection nozzle 360 is inserted into the opening 313 a and air is injected into the accommodation space via the air passage 313 and the air inlet 312. 18 corresponds to the “air injecting unit (air injecting step) 560” in FIG.
Next, as shown in FIG. 19, the air passage 313 is blocked using the pressing member 370. FIG. 19 corresponds to “air passage blocking section (air passage blocking step) 570” of FIG.
Next, as illustrated in FIG. 20, a joining portion (secondary seal) 380 that joins the first sheet 320 and the second sheet 330 is formed so that the air passage 313 is blocked. FIG. 20 corresponds to “secondary seal portion (secondary seal step) 580” of FIG.
Next, as shown in FIG. 21, the first sheet 320 and the second sheet 330 on which the primary seal 350 and the secondary seal 380 are applied are cut using a cutting member (cutter). FIG. 21 corresponds to “cutting part (cutting step) 590” of FIG.

The container, the container manufacturing method, and the container manufacturing apparatus of the present invention are not limited to the configuration described in the embodiment, and various modifications, additions, and deletions are possible.
In the embodiment, one container is formed using one air injection opening (gas injection opening), but a plurality of containers are formed using one air injection opening (gas injection opening). You can also For example, the accommodation space is arranged in the opposite direction along the movement direction of the sheets (the first sheet and the second sheet), and is adjacent to the movement direction from one air injection opening (gas injection opening). It is possible to configure such that air (gas) is simultaneously injected into the two accommodating spaces. Alternatively, it is configured such that air (gas) is simultaneously injected from one air injection opening (gas injection opening) into two accommodation spaces arranged adjacent to each other in a direction crossing the moving direction of the sheet. Can do.
The gas injected into the accommodation space is not limited to air.
The pressure in the storage space can be set within an appropriate range in which the storage body can easily stand and can prevent damage to the stored article due to external force applied to the upper storage surface or the lower storage surface.
The container manufacturing method is not limited to the method described in the embodiment. For example, the configuration and order of each stage can be changed as appropriate. A plurality of steps may be performed simultaneously.
The container manufacturing apparatus is not limited to the configuration described in the embodiment. For example, the configuration and arrangement order of each part can be changed as appropriate. Further, a plurality of steps may be executed by one apparatus.
Each configuration described in the embodiment can be used alone, or a plurality of appropriately selected configurations can be used in combination.
The stored articles to be stored in the container can be selected as appropriate. The shape of the container is appropriately changed according to the shape of the stored article.

10, 110 Container 10a Housing space 11a-11d, 111a-111d Joint part 20, 120 Lower housing member 20a, 120a, 220a, 320a Lower housing space 21, 31 Edge part 21a, 31a Upper edge part 21b, 31b Right edge part 21c, 31c Lower edge 21d, 31d Left edge 22, 32, 122, 132 Flange 22a, 32a, 122a, 132a Upper flange 22b, 32b, 122b, 132b Right flange 22c, 32c, 122c, 132c Lower flange 22d, 32d 122d, 132d Left flange 22c, 33c Lower flange lower edge 21a-21d Edge 22a-22d, 32a-32d, 122a-122d, 132a-132d Flange 23, 123, 223, 323 Lower receiving surface 24 Concave bottom Containment 24a Concave bottom surface 30, 130 Upper accommodation member 30a, 130a, 230a, 330a Upper accommodation space 31a-31d Edges 33, 133, 233, 333 Upper accommodation surface 124, 125 Concave bottom accommodation surface 124a, 125a Concave bottom surface 126 Convex bottom receiving surface 126a Convex bottom surface 228 Air injection hole (gas injection opening)
212, 312 Air inflow port 213, 313 Air passage (gas passage)
220, 320 1st sheet 230, 330 2nd sheet 240 Hole punch 250, 280, 350, 380 Joint part 260, 360 Nozzle 270, 370 Press member 290 Cutting member 313a Opening (gas injection opening)
500 Lower receiving surface forming part (lower receiving surface forming step)
510 Air injection hole formation part (air injection part formation process)
520 Contained article supply unit (contained article supply process)
530 Upper receiving surface forming part (Upper receiving surface forming step)
540 Sheet stacking part (sheet stacking process)
550 1st seal part (first seal process)
560 Air injection part (air injection process)
570 Air passage blocking part (Air passage blocking process)
580 Second seal portion (second seal step)
590 Cutting part (cutting process)
400 Contained articles T1, T2, T11, T21, T21

Claims (8)

A container manufacturing method for manufacturing a container having a storage space,
Forming a concave first accommodation surface on the first sheet;
Forming a concave or planar second receiving surface on the second sheet;
A housing space is formed between the first sheet and the second sheet by the first housing surface and the second housing surface, and the housing space communicates with a gas injection opening through a gas passage. To join,
Injecting a gas from the gas injection opening and setting the pressure in the accommodation space to atmospheric pressure or higher,
In a state where the gas passage is blocked, the first sheet and the second sheet are joined so that the gas passage is closed,
In a state where the first sheet and the second sheet are joined so that the gas passage is blocked, the blocking of the gas passage is released ,
Before joining the first sheet and the second sheet so that the accommodation space communicates with the opening for gas injection through the gas passage, the first sheet or the second sheet, A container manufacturing method comprising forming a gas injection hole used as a gas injection opening . The container manufacturing method according to claim 1 ,
When blocking the gas passage, the pressing member presses at least one of the first sheet and the second sheet toward each other,
When releasing the blocking of the gas passage, the container manufacturing method is characterized by releasing the pressing of at least one of the first sheet and the second sheet by the pressing member. The container manufacturing method according to claim 1 , further comprising:
The container manufacturing method characterized by cutting the bonded first sheet and the second sheet at a location corresponding to the shape of the container in a state where the blocking of the gas passage is released. It is a container manufacturing method in any one of Claims 1-3,
  The container manufacturing method, wherein the first sheet and the second sheet are joined so that the gas passage is formed between the gas injection hole and the storage space. A container manufacturing apparatus for manufacturing a container having a storage space,
A first accommodation surface forming portion for forming a concave first accommodation surface on the first sheet;
A second accommodation surface forming portion that forms a concave or planar second accommodation surface on the second sheet;
A housing space is formed between the first sheet and the second sheet by the first housing surface and the second housing surface, and the housing space communicates with a gas injection opening through a gas passage. A first seal portion joined so as to
A gas injection part for injecting gas from the gas injection opening;
A state in which the gas passage is blocked, and a gas passage blocking portion that is controllable in a state in which the blocking of the gas passage is released,
Rutotomoni a second seal portion for joining the first sheet and the second sheet such that the gas passage is closed,
Before joining the first sheet and the second sheet so that the accommodation space communicates with the opening for gas injection through the gas passage, the first sheet or the second sheet, A container manufacturing apparatus comprising a gas injection hole forming portion for forming a gas injection hole used as a gas injection opening . The container manufacturing apparatus according to claim 5 ,
The gas passage blocker includes an operating position for pressing at least one of the first sheet and the second sheet in a direction approaching each other, and pressing of at least one of the first sheet and the second sheet. A container manufacturing apparatus having a pressing member movable to a standby position to be released. The container manufacturing apparatus according to claim 5 , further comprising:
A container manufacturing apparatus, comprising: a cutting section that cuts the bonded first sheet and the second sheet at a location corresponding to a shape of the container. The container manufacturing apparatus according to any one of claims 5 to 7,
  The first seal portion joins the first sheet and the second sheet so that the gas passage is formed between the gas injection hole and the accommodation space. Container manufacturing device.

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