JP2011131911A - Tube container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tube container capable of self-supporting, easily unsealing, and suitably adopting as a refilling container. <P>SOLUTION: In the tube container 1, a sealed portion 4 enclosed by pinching the upper end opening of a barrel 2 in the radial direction, is formed, and on the lower end part of the barrel 2, a bottom portion 6 having a ground contact portion 5 by which the tube container 1 is self-supporting is continuously provided. Among the barrel 2, in a region 19 wherein the sealed portion 4 is not formed, in a front view seen from the pinching direction in which the upper end opening portion is pinched when the sealed portion 4 is formed, a weakened line 22 extending from the outer peripheral edge of the sealed portion 4 and dividing the region 19 wherein the sealed portionis not formed, into a body 20 and a cut-off portion 21, is formed. The barrel 2 is a laminated structure made by laminating a plurality of layers 7, 8, 9 and 10, and the weakened line 22 is formed in the outermost layer 9 excluding at least one among a plurality of the layers 7, 8, 9 and 10 composed of the barrel 2 and positioned on the outermost side. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a tube container.

  Conventionally, as this type of tube container, for example, a configuration in which a seal portion formed by closing the upper end opening of a trunk portion in the radial direction is formed as shown in Patent Document 1 below is known. . In this tube container, a mouth part in which a spout is opened by breaking a part is continuously provided at the lower end of the bottom part provided continuously with the lower end part of the body part. The bottom portion protrudes downward and can be inverted and deformed in the body portion. And this tube container can become independent by earth | grounding the outer periphery of a bottom part in the state which reversely deformed the bottom part in the trunk | drum and accommodated the opening | mouth part in the trunk | drum.

Japanese Patent No. 4117638

  However, in the conventional tube container, when opening the spout and opening the tube container, it is necessary to break a part of the mouth portion after the bottom portion is reversed to the outside of the body portion, so that the workability is improved. There was room for improvement.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a tube container that can be self-supporting and can be easily opened and can be suitably used as a refill container. .

In order to solve the above problems, the present invention proposes the following means.
A tube container according to the present invention is a tube container in which a seal part is formed by closing an upper end opening of a body part in a radial direction, and the tube container is provided at a lower end part of the body part. A bottom portion having a self-supporting grounding portion is continuously provided, and a front view as viewed from a sandwiching direction in which the upper end opening is sandwiched when the seal portion is formed in a region where the seal portion is not formed in the trunk portion. A weakening line extending from the outer peripheral edge of the seal portion and partitioning the non-formed region into a main body portion and a cut portion, and the body portion has a laminated structure in which a plurality of layers are laminated, The weakening line is formed in the outermost layer located on the outermost side except at least one of the plurality of layers constituting the body portion.

According to this invention, since the bottom part which has the said grounding part is provided in a row by the lower end part of the trunk | drum, a tube container can be made independent by making this grounding part ground.
Further, when the body portion is broken along the weakening line and the cut portion is removed from the main body portion in the non-forming region of the seal portion, a spout is formed in the main body portion. Therefore, the spout can be formed and the tube container can be opened by a simple operation that simply breaks the barrel portion along the weakening line.

  Further, since the weakening line is formed at least in the outermost layer, when applying a shearing force to the body part to break the body part along the weakening line, this shearing force is weakened in the body part. It becomes possible to make it easy to concentrate on the part along the line, and the shearing force required for the breaking operation can be reduced.

  When the body portion is broken along the weakening line as described above, for example, in the front view, the portions located on both sides of the seal portion side edge of the weakening line are gripped in the front view. In this state, when a shearing force is applied to the seal portion by separating each of these portions, this shearing force is applied to the hard seal portion, not the non-formation region of the soft seal portion in the body portion. It will be. Therefore, this shearing force is not absorbed by stretching the body part, but is efficiently transmitted as a force for breaking and incising the body part. Thereby, it becomes possible to fracture | rupture a trunk | drum easily along a weakening line, and a tube container can be opened easily.

  Further, at least one of the layers positioned inside the outermost layer may be a hard material layer formed of a material harder than the outermost layer.

  In this case, since at least one of the layers located inside the outermost layer is a hard material layer formed of a material harder than the outermost layer, in order to open the tube container as described above When applying a shearing force, the hard material layer is not easily stretched. Therefore, the shearing force is efficiently transmitted, the body portion can be easily broken along the weakening line, and the tube container can be easily opened.

  The weakening line may be formed in a layer other than the hard material layer among a plurality of layers constituting the trunk portion.

  In this case, the weakening line is formed in a layer other than the hard material layer among the plurality of layers constituting the trunk portion, that is, no weakening line is formed in the hard material layer. As a result, when the body portion is broken along the weakening line, it is possible to more effectively suppress a decrease in the breaking efficiency, and the above-described effects can be reliably achieved.

  Further, in the front view, the body portion has one side end portion protruding upward from the other side end portion, and the seal portion has an upper end opening of the one side end portion. A first horizontal seal portion that closes; a second horizontal seal portion that closes an upper end opening portion of the other side end side portion; an upper end opening portion of the one side end side portion; and the other side end side portion. You may provide the vertical seal | sticker part which obstruct | occludes the connection opening part which connects an upper end opening part.

  In this case, before accommodating the contents in the tube container, the upper end opening part of the one side end side part, which is the three opening parts constituting the upper end opening part of the trunk part, and the other side end side part By closing one or two of the upper end opening and the connection opening to form a part of the seal portion, the opening area of the upper end opening of the body portion is narrowed when accommodating the contents, And it becomes possible to suppress the deformation | transformation of the remaining opening part which is not obstruct | occluded. Therefore, by storing the contents in the body through the remaining opening, it is possible to prevent the contents from spilling out when the contents are stored.

In particular, when the contents are accommodated in the body portion, the upper end of the one side end side portion is closed by closing the other two openings while the upper end opening portion of the one side end side portion is opened. While it is set as the structure which accommodates the content from an opening part, it is preferable that the weakening line is extended from the outer periphery of the 2nd horizontal seal part in the said front view.
That is, among the first horizontal seal portion, the second horizontal seal portion, and the vertical seal portion, the second horizontal seal portion and the vertical seal portion are formed, and the contents are received from the upper end opening of the one side end side portion. In this case, the deformation of the one side end portion can be reliably suppressed by the rib effect of the vertical seal portion. That is, it is possible to suppress the upper end portion of the one side end side portion from buckling or the upper end opening portion of the one side end side portion from being distorted.

  The seal portion may be formed with a cut portion that cuts toward the weakening line.

  In this case, since the cut portion cut into the weakening line is formed in the seal portion, when the body portion is broken along the weakening line, both sides of the seal portion sandwiching the cut portion in the front view It becomes easy to separate each part located in this, and it becomes easy to apply a big shearing force to a seal part. Thereby, it becomes possible to fracture | rupture a trunk | drum easily along a weakening line, and a tube container can be opened easily.

  The tube container according to the present invention can be self-supporting and can be easily opened, and can be suitably employed as a refill container.

It is a front view showing the state where a tube container concerning a 1st embodiment of the present invention was partially broken. In the tube container shown in FIG. 1, it is a top view which shows the state before forming a seal part. It is a figure explaining the manufacturing method of the tube container shown in FIG. It is a figure explaining the extraction method of the contents in the tube container shown in FIG. It is a front view of the principal part which comprises the tube container which concerns on 2nd Embodiment of this invention. It is a front view of the principal part which comprises the modification of the tube container which concerns on 2nd Embodiment of this invention.

(First embodiment)
Hereinafter, a tube container according to a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the tube container 1 has a configuration in which a seal portion 4 is formed in which an upper end opening 3 (see FIG. 2) of the body portion 2 is sandwiched and closed in the radial direction. In the illustrated example, a bottomed cylindrical bottom portion 5 made of a resin material is connected to the lower end portion of the body portion 2.

  In addition, the trunk | drum 2 and the bottom part 5 are arrange | positioned in the state in which each center axis line was located on the common axis. Hereinafter, this common axis is referred to as a container axis O, a direction along the container axis O is referred to as an up-down direction, and a direction orthogonal to the container axis O is referred to as a radial direction. Further, the seal portion 4 side along the vertical direction is referred to as the upper side, and the bottom portion 5 side is referred to as the lower side.

The bottom wall portion 6 of the bottom portion 5 is a grounding portion on which the tube container 1 can stand on its own. A peripheral wall portion (not shown) of the bottom portion 5 is connected to a lower end portion of the trunk portion 2.
The trunk | drum 2 is made into the laminated structure by which several layers 7, 8, 9, and 10 are laminated | stacked. In the present embodiment, the body 2 includes an innermost layer 7, an intermediate layer 8, and an outermost layer 9 that are laminated in this order from the inner side to the outer side in the radial direction, and between the innermost layer 7 and the intermediate layer 8. Between the layer 8 and the outermost layer 9, an adhesive layer 10 for adhering layers adjacent in the radial direction to each other is disposed. The innermost layer 7, the intermediate layer 8, the outermost layer 9, and the adhesive layer 10 each have a single layer structure formed of one layer.

  Of the plurality of layers 7, 8, 9, 10 constituting the body portion 2, at least one of the layers 7, 8, 10 positioned on the inner side of the outermost layer 9 positioned on the outermost side is The hard material layer 26 is made of a material harder than the outermost layer 9. In the present embodiment, the intermediate layer 8 adjacent to the outermost layer 9 via the adhesive layer 10 is the hard material layer 26. In the illustrated example, the innermost layer 7 and the outermost layer 9 are made of, for example, polyethylene, and the intermediate layer 8 is made of, for example, aluminum (aluminum foil) that is a material harder than polyethylene.

In addition, the body portion 2 has one side end portion 11 as the other side end portion 12 in the front view as viewed from the sandwiching direction A (see FIG. 2) in which the upper end opening 3 is sandwiched when the seal portion 4 is formed. It protrudes upwards.
The seal part 4 extends in a band shape along the upper end edge of the body part 2 in the front view. As shown in FIGS. 1 and 2, the seal portion 4 includes a first horizontal seal portion 14 that closes an upper end opening 13 of the one side end portion 11 and an upper end opening of the other side end portion 12. The second horizontal seal portion 16 that closes the portion 15, and the connection opening portion 17 that connects the upper end opening portion 13 of the one side end side portion 11 and the upper end opening portion 15 of the other side end side portion 12 are closed. And a vertical seal portion 18.

  As shown in FIG. 1, in the present embodiment, in the body portion 2, the non-formation region 19 of the seal portion 4 extends from the outer peripheral edge of the seal portion 4 in the front view. A weakening line 22 is formed to divide the main body portion 20 and the cut portion 21. In the example shown in the drawing, the weakening line 22 extends linearly and inclined to the container axis O in the front view, and from the outer peripheral edge of the second horizontal seal portion 16 to the other side end of the trunk portion 2. It is extended. The cut portion 21 is a part of the non-formation region 19 in the other side end portion 12 of the body portion 2 in the front view. In the example shown in the drawing, the weakening line 22 is formed on each of the front and back portions facing each other in the sandwiching direction A in the non-formation region 19 of the body portion 2. You may form only in one side.

  This weakening line 22 is formed only in the outermost layer 9 among the plurality of layers 7, 8, 9, 10 constituting the body 2. That is, the weakening line 22 is formed in a layer other than the intermediate layer 8 that is the hard material layer 26 among the plurality of layers 7, 8, 9, 10 constituting the body portion 2, and the intermediate layer 8 (hard material Layer 26) is not formed. For example, the weakening line 22 has a perforation in the outermost layer 9, a non-penetrating cut is linearly formed, intermittently connecting pieces that are easy to break, or a thin-walled portion is formed. Therefore, it is easy to break and is not penetrating the body 2.

  In the present embodiment, the seal portion 4 is formed with a cut portion 23 that cuts toward the weakening line 22. In the illustrated example, the cut portion 23 is formed in the second horizontal seal portion 16. In the front view, the shape of the cut portion 23 is triangular, and the corner portion of the cut portion 23 extends from the edge of the weakening line 22 on the seal portion 4 side along the weakening line 22 onto the seal portion 4. One side portion of the cut portion 23 (side portion on the one side end portion portion 11 side) is located on the virtual line L.

Next, the operation of the tube container 1 configured as described above will be described.
First, an example of the manufacturing method of this tube container 1 is demonstrated.
First, the innermost layer 7, the intermediate layer 8, the outermost layer 9 and the adhesive layer 10 are laminated, and a laminated film (not shown) having a certain length in which the weakening line 22 is formed on the outermost layer 9 is formed. At this time, for example, the weakening line 22 may be formed in the outermost layer 9 before the layers 7, 8, 9, 10 are laminated. The weakening line 22 may be formed (post-processed) after the body 2 is formed. Further, for example, a vapor deposition film obtained by vapor-depositing a metal material such as aluminum on a resin film may be employed as the laminated film.

Next, after the cylindrical film part 2 is formed by bonding or welding the two peripheral ends of the laminated film to each other, a resin material is placed in the mold in a state where the film part 2 is placed in a mold (not shown). The bottom portion 5 supplied and integrally connected to the body portion 2 is formed by injection molding. At this time, for example, the bottom 5 integrally connected to the body 2 may be formed by compression molding or the like. Further, for example, the bottom portion 5 may be formed in a cylindrical shape with a bottom in advance, and the peripheral wall portion of the bottom portion 5 and the lower end portion of the trunk portion 2 may be welded (fixed).
In addition, about shaping | molding of the trunk | drum 2 and the bottom part 5, after forming the trunk | drum 2 by extrusion molding, the method of fixing the bottom part 5 to the trunk | drum 2 as mentioned above, or the trunk | drum 2 and the bottom part 5 by extrusion blow molding. Various molding methods, such as a method of integrally forming the two, can be employed.

  Next, as shown in FIG. 3, among the three openings 13, 15, 17 constituting the upper end opening 3 of the body 2, the upper end opening 15 of the other side end portion 12 and the connection opening 17 is closed to form the second horizontal seal portion 16 and the vertical seal portion 18.

Next, the contents W are accommodated in the body 2 through the upper end opening 3 of the body 2. Here, in this embodiment, since the upper end opening 15 of the other side end side portion 12 and the connection opening 17 are closed, the second horizontal seal portion 16 and the vertical seal portion 18 are formed. As shown by the arrow in FIG. 3, the contents W can be accommodated in the body 2 through the upper end opening 13 and the upper end 24 of the one side end portion 11 that is the remaining opening that is not closed. it can.
And the upper end opening part 13 of the said one side end side part 11 is obstruct | occluded, and the 1st horizontal seal part 14 is formed.
The tube container 1 is formed by the above.

  Here, in the present embodiment, when the contents W are accommodated in the body portion 2, the opening area of the upper end opening portion 3 of the body portion 2 is narrowed, and the upper end of the one side end side portion 11 that is not closed. It becomes possible to suppress the deformation of the opening 13. Therefore, it is possible to prevent the contents W from spilling when the contents W are accommodated by accommodating the contents W in the body 2 through the upper end opening 13 of the one side end portion 11. it can.

  That is, as in this embodiment, among the first horizontal seal portion 14, the second horizontal seal portion 16, and the vertical seal portion 18, the second horizontal seal portion 16 and the vertical seal portion 18 are formed, and the one side end side is formed. When the contents W are accommodated from the upper end opening 13 of the portion 11, the deformation of the one side end portion 11 can be reliably suppressed by the rib effect of the vertical seal portion 18. That is, it is possible to suppress the upper end portion 24 of the one side end side portion 11 from buckling or the upper end opening 13 of the one side end side portion 11 from being distorted.

Next, an example of a method for extracting the contents W from the tube container 1 will be described.
First, as shown in FIG. 1, in order to break the body portion 2 along the weakening line 22, each portion of the seal portion 4 located on both sides of the notch portion 23 in the front view is held with both hands. In the gripped state, these parts are pulled apart in the sandwiching direction A or the extending direction of the seal portion 4 (vertical direction and direction perpendicular to the sandwiching direction A), thereby applying a shearing force to the seal portion 4.

  At this time, for example, with the hand holding the portion located on the one side end side portion 11 side among the respective portions of the seal portion 4, the upper end portion 24 of the one side end side portion 11 is aligned. By gripping, the body 2 can be gripped over a wide range, and a large shearing force can be easily applied to the seal portion 4.

  As described above, the seal portion 4 is broken toward the edge of the weakening line 22 on the seal portion 4 side. When the seal portion 4 is completely broken, this shearing force is locally concentrated on a portion along the weakening line 22 in the non-formation region 19 of the trunk portion 2. Is broken along the weakening line 22.

  As shown in FIG. 4, after the non-formed region 19 of the body portion 2 is completely broken along the weakening line 22, the cutout portion 21 is removed from the main body portion 20, whereby the spout 25 is formed in the main body portion 20. The tube container 1 is formed and opened. Thereafter, the contents W can be poured out through the spout 25 by tilting the tube container 1.

As described above, according to the tube container 1 according to the present embodiment, since the bottom portion 5 having the bottom wall portion 6 is connected to the lower end portion of the trunk portion 2, the bottom wall portion 6 is grounded. By making it, the tube container 1 can be made independent.
Moreover, when the trunk | drum 2 is fractured | ruptured along the weakening line 22 and the cutting part 21 is removed from the main-body part 20 in the non-formation area | region 19 of the seal | sticker part 4, the spout 25 will be formed in the said main-body part 20. FIG. . Therefore, the spout 25 can be formed and the tube container 1 can be opened by a simple operation of simply breaking the barrel portion 2 along the weakening line 22.

  Further, since the weakening line 22 is formed in the outermost layer 9, when a shearing force is applied to the body part 2 in order to break the body part 2 along the weakening line 22, this shearing force is applied to the body part. 2 can be easily concentrated on the portion along the weakening line 22, and the shearing force required for the breaking operation can be reduced.

  Further, since the intermediate layer 8 located inside the outermost layer 9 is a hard material layer 26 formed of a material harder than the outermost layer 9, in order to open the tube container 1 as described above. When applying a shearing force, the intermediate layer 8 (hard material layer 26) is not easily stretched. Therefore, the shearing force is efficiently transmitted, the barrel portion 2 can be easily broken along the weakening line 22, and the tube container 1 can be easily opened.

  Further, the weakening line 22 is formed in the outermost layer 9 which is a layer other than the intermediate layer 8 which is the hard material layer 26 among the plurality of layers 7, 8, 9, 10 constituting the trunk portion 2, that is, The weakening line 22 is not formed in the intermediate layer 8 (hard material layer 26). Thereby, when the trunk | drum 2 is fractured | ruptured along the weakening line 22, it becomes possible to suppress the fall of fracture | rupture efficiency more effectively, and the above-mentioned effect can be achieved reliably.

  Further, when the body portion 2 is broken along the weakening line 22 as in the present embodiment, for example, both sides of the seal portion 4 sandwiching the edge on the seal portion 4 side of the weakening line 22 in the front view. When a shearing force is applied to the seal portion 4 by pulling these portions apart while holding each portion located at the position, the shearing force is not formed in the soft seal portion 4 in the body portion 2. It is added to the hard seal portion 4 instead of the region 19. Therefore, this shearing force is not absorbed by stretching the body 2 and is efficiently transmitted as a force for breaking and incising the body 2. Thereby, it becomes possible to fracture | rupture the trunk | drum 2 much more easily along the weakening line 22, and the tube container 1 can be opened more easily.

  Furthermore, since the notch part 23 cut | disconnected toward the weakening line 22 is formed in the seal part 4, when cut | disconnecting the trunk | drum 2 along the weakening line 22, it cuts out of the seal part 4 in the said front view. The parts located on both sides of the part 23 are easily separated, and a large shearing force is easily applied to the seal part 4. Thereby, it becomes possible to fracture | rupture the trunk | drum 2 along the weakening line 22 still more easily, and the tube container 1 can be opened still more easily.

(Second Embodiment)
Next, the tube container 30 of 2nd Embodiment which concerns on this invention is demonstrated with reference to FIG.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.
In this tube container 30, the trunk | drum 2 has the extraction part 31 which protrudes upwards in the part located between both ends in the said front view. In the illustrated example, the extraction portion 31 is arranged so as to be continuous with one side end of the body portion 2 in the front view, and is gradually reduced in width toward the upper side.

  The seal part 4 has a barrel that is more than the upper end opening part of the pouring part 31 among the first seal part 32 that closes the upper end opening part of the pouring part 31 and the upper end opening part 3 of the trunk part 2 in the front view. Of the upper end opening portion of the barrel portion 2, the second seal portion 33 that closes the one side opening portion located on one side end side of the portion 2, and the other end of the barrel portion 2 than the upper end opening portion of the extraction portion 31. And a third seal portion 34 that closes the other-side opening located on the side end side.

  The weakening line 22 extends from the outer peripheral edge of the second seal portion 33 to the outer peripheral edge of the third seal portion 34 so as to cross the non-forming region 19 in the extraction portion 31 in the front view. . The cut portion 23 is formed in the second seal portion 33.

  According to the tube container 30 according to the present embodiment, since the weakening line 22 extends so as to cross the non-formation region 19 in the extraction portion 31 in the front view, along the weakening line 22. When the body portion 2 is broken and the cut portion 21 is removed from the main body portion 20 in the non-formation region 19, a spout 25 is formed at a position protruding upward in the main body portion 20. Thereby, the content W can be poured out easily.

  In addition, the extraction | pouring part 31 is not restricted to what was shown to this embodiment, For example, like the tube container 40 shown in FIG. 6, you may arrange | position in the center part in the said front view. In the tube container 40, the cut portion 23 is formed separately in the second seal portion 33 and the third seal portion 34 so as to sandwich the weakening line 22 in the front view.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the bottom wall portion 6 of the bottom portion 5 is a grounding portion that allows the tube container 1 to stand on its own, but is not limited thereto. For example, the bottom wall portion 6 of the bottom portion 5 is provided with a mounting cylinder that protrudes downward, and the bottom portion 5 further includes a bottomed cylindrical grounding cylinder (grounding portion) that is mounted on the mounting cylinder. It may be. The present invention can also be applied to a conventional tube container in which a mounting cap is mounted on a discharge port disposed at a portion corresponding to the bottom of the present invention.

Moreover, although the said front view shape of the cut | notch part 23 shall be triangular shape, it is not restricted to this. Further, the cut portion 23 may not be provided.
In the embodiment, the weakening line 22 is formed in the non-formation region 19 of the seal portion 4 in the body portion 2, but may be formed in the seal portion 4. In this case, the shearing force necessary for breaking the seal portion 4 can be reduced.

  Moreover, the method of extracting the contents W from the tube containers 1, 30, 40 is not limited to the one shown in the embodiment. For example, in the above embodiment, when opening the tube container 1, the portions located on both sides of the cut portion 23 in the seal portion 4 in the front view are gripped. It is not something that can be done. At this time, in the front view, portions of the non-formed region 19 located on both sides of the weakening line 22 may be gripped.

  Moreover, the manufacturing method of the tube containers 1, 30, and 40 is not restricted to what is shown to the said embodiment. For example, in the embodiment, before the contents W are stored in the tube container 1, the other side end side portion of the three openings 13, 15, and 17 constituting the upper end opening 3 of the body 2. Although the 12 upper end openings 15 and the connection opening 17 are closed to form the second horizontal seal part 16 and the vertical seal part 18, the present invention is not limited to this. One or two of these three openings 13, 15, and 17 may be closed to form part of the seal portion 4.

In the above embodiment, the intermediate layer 8 is the hard material layer 26. Alternatively, the innermost layer 7 and the adhesive layer 10 may be the hard material layer 26. The plurality of layers 7, 8, and 10 located inside the outer layer 9 may be the hard material layer 26.
Furthermore, in the said embodiment, although at least 1 of the layers 7, 8, and 10 located inside the outermost layer 9 was made into the hard material layer 26, it is not restricted to this.

Moreover, the material which forms the some layers 7, 8, 9, 10 which comprise the trunk | drum 2 is not restricted to what was shown by the said embodiment. For example, all of the innermost layer 7, the intermediate layer 8, the outermost layer 9 and the adhesive layer 10 may be formed of a resin material.
Furthermore, in the said embodiment, although the trunk | drum 2 was made into the 5 layer structure which consists of the innermost layer 7, the intermediate | middle layer 8, the outermost layer 9, and the contact bonding layer 10, if it is a laminated structure, it is four layers or less, or six layers or more. There may be.

  Furthermore, if the trunk | drum 2 is formed by the laminated structure, it will not be restricted to what was shown to the said embodiment. For example, the adhesive layer 10 is not provided, and the innermost layer 7 and the intermediate layer 8 and the intermediate layer 8 and the outermost layer 9 may be directly bonded or welded to each other. Further, the intermediate layer 8 may be omitted, and another layer different from the innermost layer 7, the intermediate layer 8, the outermost layer 9, and the adhesive layer 10 may be provided.

  Moreover, in the said embodiment, although the weakening line 22 shall be formed only in the outermost layer 9 among several layers 7, 8, 9, 10 which comprise the trunk | drum 2, it comprises the trunk | drum 2. As long as at least one of the plurality of layers 7, 8, 9, 10 is excluded and the outermost layer 9 is formed, the present invention is not limited to this. Furthermore, the weakening line 22 may be formed in the hard material layer 26 (intermediate layer 8).

For example, the weakening line 22 may be formed to a depth from the outermost layer 9 to the intermediate layer 8. Further, the weakening line 22 may be formed on the innermost layer 7 and the outermost layer 9 separately. Further, the weakening line 22 may be formed only in the innermost layer 7.
In addition, the weakening line 22 is formed by removing at least one of the plurality of layers 7, 8, 9, and 10 constituting the trunk portion 2, so that, for example, the weakening line 22 extends in the extending direction. Even if it is the structure which has a gap | interval part intermittently, the leak of the content W from the trunk | drum 2 will be suppressed.

  Moreover, in the said embodiment, although the trunk | drum 2 assumed that the one side end side part 11 protruded upwards rather than the other side end side part 12 in the said front view, it is restricted to this. It is not a thing. For example, the upper end edge of the trunk portion 2 may be flat along the radial direction in the front view.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

1, 30, 40 Tube container 2 Body part 3 Upper end opening part 4 Sealing part 5 Bottom part 6 Bottom wall part (grounding part)
7 Innermost layer 8 Middle layer (layer)
9 Outermost layer 10 Adhesive layer (layer)
11 One side end side portion 12 Other side end side portion 13 Upper end opening portion 14 of one side end side portion First horizontal seal portion 15 Upper end opening portion 16 of the other side end side portion 16 Second horizontal seal portion 17 Connection Opening portion 18 Vertical seal portion 19 Non-formed region 20 of seal portion Main body portion 21 Cut portion 22 Weakening line 23 Cut portion 26 Hard material layer A Insertion direction

Claims (5)

A tube container in which a seal portion formed by closing the upper end opening of the body portion in the radial direction is formed,
A bottom portion having a grounding portion on which the tube container can stand independently is connected to a lower end portion of the trunk portion,
In the body portion, the non-formation region of the seal portion extends from the outer peripheral edge of the seal portion when viewed from the front direction when the upper end opening is sandwiched when the seal portion is formed. A weakening line that divides the formation region into a main body part and a cut-out part is formed,
The body portion has a laminated structure in which a plurality of layers are laminated,
The said weakening line is formed in the outermost layer located in the outermost side except at least 1 among the several layers which comprise the said trunk | drum, The tube container characterized by the above-mentioned. The tube container according to claim 1,
At least one of the layers located inside the outermost layer is a hard material layer formed of a material harder than the outermost layer. A tube container according to claim 2,
The said weakening line is formed in layers other than the said hard material layer among the several layers which comprise the said trunk | drum, The tube container characterized by the above-mentioned. The tube container according to any one of claims 1 to 3,
In the front view, the body portion has one side end portion protruding upward from the other side end portion,
The seal portion includes a first horizontal seal portion that closes an upper end opening of the one side end portion, a second horizontal seal portion that closes an upper end opening of the other side end portion, and the one A tube container, comprising: a vertical seal portion that closes a connection opening portion that connects an upper end opening portion of a side end side portion and an upper end opening portion of the other side end side portion. The tube container according to any one of claims 1 to 4,
The tube container, wherein the seal portion is formed with a cut portion that cuts toward the weakening line.

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