JP2015209212A - Standing pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a standing pouch of which the volume can be readily reduced before disposal.SOLUTION: The standing pouch includes: a first engaging part 11 provided in one side in the right and left direction of the top of an upper sealing portion 9; and a second engaging part 21 provided in the same side as the first engaging part 11 in the right and left direction of a lower sealing portion 8. The first engaging part 11 engages with the second engaging part 21 when body sheets 2 and 3 are folded in the vertical direction.

Description

  The present invention relates to a bottom gusset type standing pouch for storing contents such as liquid.

  The bottom gusset type standing pouch is widely used as a container for the contents of liquids and viscous substances such as seasonings, liquors and detergents. A conventional standing pouch is disclosed in Patent Document 1. This standing pouch has a pair of trunk sheets facing the front and rear and a bottom sheet, and a pouring member for forming a spout is provided at the upper end of the trunk sheet.

  The bottom of the standing pouch is thermally bonded to the body sheet by the bottom seal part at the periphery of the bottom sheet sandwiched between the body sheets. Above the bottom seal portion of the standing pouch, the opposing peripheral edges of the trunk sheet are thermally bonded by the upper seal portion. Further, the pouring member is thermally bonded by being sandwiched between a pair of trunk sheets.

JP-A-2006-82847 (pages 8 to 15, FIG. 1)

  The conventional standing pouch is folded after the contents are poured out, reduced in volume, and discarded. However, there is a problem that the folded standing pouch returns to the original state when the thickness of the laminated film forming the standing pouch is large, and the volume cannot be easily reduced.

  An object of the present invention is to provide a standing pouch that can be easily reduced in volume at the time of disposal.

  In order to achieve the above-described object, the present invention is configured to thermally bond a peripheral edge of a bottom sheet sandwiched between lower portions of a pair of front and rear body sheets, to the body sheet by a bottom seal portion, and from the bottom seal portion. In the standing pouch in which the periphery of the upper body sheet is thermally bonded by the upper seal part, a first hook part formed on one side in the left-right direction of the upper part of the upper seal part, and the first hook part and the left and right A second latching portion formed on the bottom seal portion on the same side of the direction, and the first latching portion and the second latching portion are latched when the trunk sheet is folded up and down. It is characterized by that.

  According to this structure, when a trunk | drum sheet | seat is folded up and down, folding back of a trunk | drum sheet | seat is prevented by latching a 1st latching part and a 2nd latching part.

  According to the present invention, in the standing pouch configured as described above, the first hooking portion is formed by a slit extending from a side end of the upper seal portion, and the second hooking portion is located above the first hooking portion. It has an insertion part consisting of a through hole or a slit into which the upper seal part can be inserted, and the first seal part and the second latch part are latched by inserting the upper seal part into the insert part. It is said.

  The standing pouch of the present invention is characterized in that the second hooking portion has a slit that extends from the insertion portion toward the side edge of the upper seal portion and meshes with the first hooking portion.

  According to the present invention, in the standing pouch configured as described above, the second hooking portion is formed by a slit extending from a side end of the bottom seal portion, and the first hooking portion is lower than the second hooking portion. It has an insertion part into which a bottom seal part can be inserted, and the first seal part and the second latch part are latched by inserting the bottom seal part into the insert part.

  The standing pouch of the present invention is characterized in that the first hooking portion has a slit extending from the insertion portion toward the side edge of the bottom seal portion and meshing with the second hooking portion.

  According to the present invention, in the standing pouch configured as described above, one of the first latching portion and the second latching portion has a latching piece formed by an arched slit, and the other inserts the latching piece. It is characterized by being formed by a through hole or a slit having both ends in the body sheet.

  According to the present invention, in the standing pouch having the above-described configuration, the content outlet is provided at an upper portion, and the outlet is disposed on the opposite side in the left-right direction with respect to the first hook portion and the second hook portion. It is characterized by that.

  According to the present invention, the first latching portion formed on one of the upper and lower portions of the upper seal portion in the left-right direction, and the second latching portion formed on the bottom seal portion on the same side as the first latching portion in the left-right direction. When the trunk sheet is folded in the vertical direction, the first latch section and the second latch section are latched to prevent the trunk sheet from being folded back. Therefore, the standing pouch can be easily reduced in volume and discarded.

The perspective view which shows the standing pouch of 1st Embodiment of this invention. The front view which shows the standing pouch of 1st Embodiment of this invention. AA sectional view of FIG. Schematic sectional view showing the layer structure of the laminated film forming the standing pouch according to the first embodiment of the present invention The perspective view which shows the state at the time of discard of the standing pouch of 1st Embodiment of this invention. The front view which shows the 2nd latching | locking part of the standing pouch of 2nd Embodiment of this invention. The front view which shows the 2nd latching part of the standing pouch of 3rd Embodiment of this invention. The front view which shows the standing pouch of 4th Embodiment of this invention. Front view showing a standing pouch according to a fifth embodiment of the present invention. Front view showing a standing pouch according to a sixth embodiment of the present invention. Front view showing a standing pouch according to a seventh embodiment of the present invention. The front view which shows the standing pouch of 8th Embodiment of this invention.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a perspective view and a front view of the standing pouch according to the first embodiment. FIG. 3 is a cross-sectional view taken along the line AA in FIG. The standing pouch 1 has a pair of body sheets 2 and 3 and a bottom sheet 4 formed of laminated films. The body sheets 2 and 3 are opposed to each other to form the body of the standing pouch 1, and the bottom sheet 4 forms the bottom of the standing pouch 1.

  The bottom sheet 4 is folded in half below the horizontal dotted line D in FIG. 2 and sandwiched between the lower part of the trunk sheet 2 and the lower part of the trunk sheet 3. The periphery of the bottom sheet 4 is thermally bonded to the trunk sheet 2 and the trunk sheet 3 by the bottom seal portion 8. The body sheet 2 and the body sheet 3 are thermally bonded to each other by the upper seal part 9 at the upper edge and the side edge above the bottom seal part 8. Thereby, the standing pouch 1 of the bottom gusset type which can stand independently is formed.

  An inclined corner cutting portion 5 is formed on one of the upper end portions of the trunk portion sheets 2 and 3 in the left-right direction (upper right in FIG. 2). The corner cutting portion 5 is thermally bonded by the upper seal portion 9 with a synthetic resin pouring member 6 sandwiched between the body portion sheets 2 and 3. The pouring member 6 forms a pouring outlet for contents, and has a cylindrical base portion 6a that is thermally bonded to the upper seal portion 9, and a lid portion 6b that is screwed into the base portion 6a.

  A first latching portion 11 is provided on the upper portion of the upper seal portion 9 opposite to the dispensing member 6 (spout port) in the left-right direction. Further, the second hooking portion 21 is provided on the bottom seal portion 8 on the same side in the left-right direction as the first hooking portion 11. As a result, the pouring member 6 (pouring port) is arranged to be biased to the opposite side in the left-right direction from the first hooking portion 11 and the second hooking portion 21.

  Further, the first latching portion 11 is formed by a slit having one end extending from the side end of the upper seal portion 9 opened. The 2nd latching part 21 has the insertion part 21a which consists of a through-hole, and the slit 21b extended toward the side edge of the upper seal part 9 from the periphery of the insertion part 21a is provided. Further, the insertion portion 21 a is formed in a size that allows the upper seal portion 9 above the first hooking portion 11 to be inserted.

  FIG. 4 is a schematic cross-sectional view showing the layer structure of the laminated film that forms the body sheets 2 and 3 and the bottom sheet 4. The laminated film 30 is provided with a jacket layer 31 on the outer surface side of the thermal adhesive layer 35. For example, a polyethylene terephthalate film 32, an aluminum foil 33, and a biaxially stretched nylon film 34 are laminated in this order from the outer surface side with an adhesive.

  The polyethylene terephthalate film 32 is formed with a thickness of 12 μm, for example, and can perform beautiful printing with high printability and can impart heat resistance during thermal bonding. The aluminum foil 33 is formed with a thickness of 9 μm, for example, and prevents intrusion of oxygen and water vapor. The biaxially stretched nylon film 34 is formed with a thickness of 15 μm, for example, and can improve the puncture resistance of the pouch 1 with a spout. In addition, the inner surface side of the polyethylene terephthalate film 32 is printed to form a design such as a product name.

  The heat bonding layer 35 disposed on the innermost layer of the laminated film 30 is formed of, for example, a linear low density polyethylene film having a thickness of 100 μm. The laminated film 30 is thermally bonded by overlapping and heating and pressing the opposing thermal adhesive layers 35.

  In the pouch 1 with the spout configured as described above, the lid portion 6b of the spout member 6 is removed, and the liquid or viscous content is poured out, and the spout is closed by the lid portion 6b after the content is poured out.

  FIG. 5 is a perspective view showing a state when the standing pouch 1 is discarded. When the standing pouch 1 after pouring out the contents is discarded, the body sheets 2 and 3 are folded up and down as shown in FIG. At this time, the upper seal portion 9 above the first hook portion 11 is inserted into the second hook portion 21, and the first hook portion 11 is engaged with the slit 21 b of the second hook portion 21. Thereby, the 1st latching part 11 and the 2nd latching part 21 are latched mutually. Therefore, it is possible to prevent the standing pouch 1 from returning to the original state even when the thickness of the laminated film 30 is large and the elasticity of the body sheets 2 and 3 is strong.

  According to the present embodiment, the first hooking portion 11 is formed on one side of the upper portion of the upper seal portion 9 in the left-right direction, and the second hooking is formed on the bottom seal portion 8 on the same side as the first hooking portion 11. Part 21 is formed. As a result, when the standing pouch 1 after the contents are poured out is folded, the first hooking portion 11 and the second hooking portion 21 are hooked together to prevent the standing pouch 1 from returning to its original state. it can. Accordingly, the standing pouch 1 can be easily reduced in volume and discarded.

  At this time, the pouring member 6 (pouring port) is arranged to be biased to the opposite side in the left-right direction from the first hooking portion 11 and the second hooking portion 21. For this reason, when the 1st latching part 11 and the 2nd latching part 21 are latched, the extraction | pouring member 6 does not become obstructive, and the workability | operativity at the time of disposal of the standing pouch 1 can be improved.

  Further, the first latching portion 11 is formed by a slit having one end extending from the side end of the upper seal portion 9 opened. The second hooking portion 21 has an insertion portion 21 a formed of a through hole, and the upper seal portion 9 above the first hooking portion 11 is inserted. Thereby, the 1st latching part 11 and the 2nd latching part 21 latched mutually can be implement | achieved easily. Further, the corner of the upper seal portion 9 above the first hook portion 11 is formed in a curved shape. Thereby, the upper seal portion 9 can be easily inserted into the insertion portion 21a formed of the through hole.

  Moreover, since the 2nd latching | locking part 21 inserts the upper seal part 9 above the 1st latching | locking part 11, it needs a wide width | variety in an up-down direction. For this reason, the 2nd latching | locking part 21 can be easily provided in the bottom seal part 8 with a large heat bonding area.

  The second hooking portion 21 has a slit 21 b that extends from the through hole 21 a toward the side edge of the upper seal portion 9 and meshes with the first hooking portion 11. Thereby, the 1st latching | locking part 11 and the 2nd latching | locking part 21 can be latched more reliably, and the fall of the 1st latching | locking part 11 can be prevented. Note that the slit 21b may be omitted, and the first hook portion 11 may be hooked on the periphery of the insertion portion 21a of the second hook portion 21.

Second Embodiment
Next, FIG. 6 shows a front view of the lower part of the standing pouch 1 of the second embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, a second hooking portion 22 is provided on the bottom seal portion 8 in place of the second hooking portion 21 (see FIG. 2). Other parts are the same as those in the first embodiment.

  The second latching portion 22 has an insertion portion 22 a formed of an arch-shaped slit having both ends in the body seats 2 and 3. The insertion portion 22a is formed in a size that allows the upper seal portion 9 above the first latching portion 11 to be inserted. The second hooking portion 22 has a slit 22b extending from the insertion portion 22a toward the side edge of the upper seal portion 9.

  An arcuate closing portion 22c formed inside the insertion portion 22a is held by the bottom seal portion 8 by holding portions 22d between both ends of the insertion portion 22a formed of a slit. As a result, the surface of the standing pouch 1 is closed by the closing portion 22c. For this reason, it can reduce that a foreign material is accidentally hooked to the 2nd latching | locking part 22, and damage to the standing pouch 1 can be prevented.

  As a result, the upper seal portion 9 above the first latching portion 11 is inserted into the insertion portion 22a of the second latching portion 22, and the first latching portion 11 is engaged with the slit 22b of the second latching portion 22. . Thereby, the 1st latching part 11 and the 2nd latching part 22 are latched mutually. Therefore, even when the thickness of the laminated film 30 is large and the elasticity of the body sheets 2 and 3 is strong as in the first embodiment, the standing pouch 1 can be prevented from returning to the original state. Note that the slit 22b may be omitted and the first hooking portion 11 may be hooked to the peripheral edge of the insertion portion 22a of the second hooking portion 22.

<Third Embodiment>
Next, FIG. 7 shows a front view of the lower portion of the standing pouch 1 of the third embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, a second hook portion 23 is provided on the bottom seal portion 8 in place of the second hook portion 21 (see FIG. 2). Other parts are the same as those in the first embodiment.

  The second latching portion 23 has an insertion portion 23 a formed of a linear slit extending in the vertical direction having both ends in the body sheets 2 and 3. The insertion portion 23a is formed in a size that allows the upper seal portion 9 above the first hooking portion 11 to be inserted. The second hooking portion 23 has a slit 23b extending from the insertion portion 23a toward the side edge of the upper seal portion 9.

  As a result, the upper seal part 9 above the first hooking part 11 is inserted into the linear slit 23a of the second hooking part 23, and the slit 11a of the first hooking part 11 becomes the second hooking part 23. Meshes with the slit 23b. At this time, the 1st latching part 11 and the 2nd latching part 23 are latched mutually. Therefore, even when the thickness of the laminated film 30 is large and the elasticity of the body sheets 2 and 3 is strong as in the first embodiment, the standing pouch 1 can be prevented from returning to the original state. In addition, the slit 23b may be omitted and the first hook portion 11 may be hooked on the periphery of the insertion portion 23a of the second hook portion 23.

<Fourth embodiment>
Next, FIG. 8 shows a front view of the standing pouch 1 of the fourth embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, a first hooking portion 14 is provided on the upper seal portion 9 in place of the first hooking portion 11 (see FIG. 2). Further, a second hooking portion 24 is provided on the bottom seal portion 8 in place of the second hooking portion 21 (see FIG. 2). Other parts are the same as those in the first embodiment.

  The second hooking portion 24 is formed by a slit extending from the side end of the bottom seal portion 8. The first latching portion 14 has an insertion portion 14 a formed of a linear slit extending in the vertical direction having both ends in the body sheets 2 and 3. The insertion portion 14 a is formed in a size that allows the bottom seal portion 8 below the second hooking portion 24 to be inserted. The first hooking portion 14 has a slit 14b extending from the insertion portion 14a toward the side edge of the bottom seal portion 8.

  As a result, the bottom seal portion 8 below the second latching portion 24 is inserted into the linear insertion portion 14a of the first latching portion 14, and the second latching portion 24 is a slit of the first latching portion 14. 14b meshes. Thereby, the 1st latching part 14 and the 2nd latching part 24 are latched mutually. Therefore, even when the thickness of the laminated film 30 is large and the elasticity of the body sheets 2 and 3 is strong as in the first embodiment, the standing pouch 1 can be prevented from returning to the original state. Note that the slit 14b may be omitted and the second hooking portion 24 may be hooked to the periphery of the insertion portion 14a of the first hooking portion 14.

  Moreover, you may form the 1st latching | locking part 14 by the same through-hole or arch-shaped slit as the 2nd latching | locking parts 21 and 22 of 1st Embodiment and 2nd Embodiment.

<Fifth Embodiment>
Next, FIG. 9 shows a front view of the standing pouch 1 of the fifth embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, a first hook 15 is provided on the upper seal portion 9 in place of the first hook 11 (see FIG. 2). Further, a second hooking portion 25 is provided on the bottom seal portion 8 instead of the second hooking portion 21 (see FIG. 2). Other parts are the same as those in the first embodiment.

  The first latching portion 15 and the second latching portion 25 are formed by arch-shaped slits having both ends in the body sheets 2 and 3, respectively. The first hooking portion 15 has an arcuate hooking piece 15 a having an upper end connected to the upper seal portion 9 inside. The second hooking portion 25 has an arcuate hooking piece 25 a having a lower end connected to the bottom seal portion 8 inside. The first hooking portion 15 is formed in a size that allows the hooking piece 25a to be inserted therein, and the second hooking portion 25 is formed in a size that allows the hooking piece 15a to be inserted therein.

  When discarding the standing pouch 1, the body sheet 2, 3 is folded in the vertical direction, and the latching piece 25 b of the second latching part 25 is inserted into the first latching part 15. Thereby, the 1st latching part 15 and the 2nd latching part 25 are latched mutually. Therefore, even when the thickness of the laminated film 30 is large and the elasticity of the body sheets 2 and 3 is strong as in the first embodiment, the standing pouch 1 can be prevented from returning to the original state.

  Note that the first hooking portion 15 and the second hooking portion 25 may be hooked by inserting the hooking pieces 15 a of the first hooking portion 15 into the second hooking portion 25. Alternatively, the first hooking portion 15 may be formed by a through hole or a linear slit, and the hooking piece 25a of the second hooking portion 25 may be inserted. Further, the second hooking portion 25 may be formed by a through hole or a linear slit, and the hooking piece 15a of the first hooking portion 15 may be inserted.

<Sixth Embodiment>
Next, FIG. 10 shows a front view of the standing pouch 1 of the sixth embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the arrangement of the first hooking portion 11 and the second hooking portion 21 is different from that of the first embodiment. Other parts are the same as those in the first embodiment.

  The 1st latching | locking part 11 is the upper part of the upper seal | sticker part 9 of the same side of the left-right direction as the extraction | pouring member 6 (outlet), Comprising: It is provided below the extraction | pouring member 6. Further, the second hooking portion 21 is provided on the bottom seal portion 8 on the same side in the left-right direction as the first hooking portion 11. Thereby, the extraction | pouring member 6 will be distribute | arranged and biased to the same side of the left-right direction with the 1st latching | locking part 11 and the 2nd latching | locking part 21. FIG.

  Further, the insertion portion 21 a is formed to a size that allows the upper sealing portion 9 that is curved above the first hooking portion 11 to be inserted.

  Also in this embodiment, the upper seal part 9 above the first hooking part 11 is inserted into the second hooking part 21, and the first hooking part 11 is engaged with the slit 21a. Thereby, the 1st latching part 11 and the 2nd latching part 21 are latched mutually. Therefore, even when the thickness of the laminated film 30 is large and the elasticity of the body sheets 2 and 3 is strong as in the first embodiment, the standing pouch 1 can be prevented from returning to the original state. In addition, you may form the 1st latching part 11 and the 2nd latching part 21 by the 1st, 2nd latching part similar to 2nd-5th embodiment.

<Seventh embodiment>
Next, FIG. 11 shows a front view of the standing pouch 1 of the seventh embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the arrangement of the extraction member 6 is different from that of the first embodiment. Other parts are the same as those in the first embodiment.

  The pouring member 6 (pouring port) is provided at the upper part of the upper seal portion 9 and at the center in the left-right direction. Also in this embodiment, the upper seal part 9 above the first hooking part 11 is inserted into the second hooking part 21, and the first hooking part 11 is engaged with the slit 21a. Thereby, the 1st latching part 11 and the 2nd latching part 21 are latched mutually. Therefore, even when the thickness of the laminated film 30 is large and the elasticity of the body sheets 2 and 3 is strong as in the first embodiment, the standing pouch 1 can be prevented from returning to the original state. In addition, you may form the 1st latching part 11 and the 2nd latching part 21 by the 1st, 2nd latching part similar to 2nd-5th embodiment.

<Eighth Embodiment>
Next, FIG. 12 shows a front view of the standing pouch 1 of the eighth embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the pouring member 6 is omitted, and the pouring portion 60 is provided by the body sheets 2 and 3. Other parts are the same as those in the first embodiment.

  The pouring part 60 protrudes upward from the corner cutting part 5 of the trunk | drum sheet | seats 2 and 3, the periphery is heat-bonded, and the pouring path 61 which opened the lower end inside is formed. Further, a notch 62 is formed at the side edge of the dispensing portion 60 as an opening means. When the pouring part 60 is torn from the notch 62, the pouring path 61 is opened and the pouring outlet 63 is opened. Thereby, the contents are poured out.

  Also in the present embodiment, when the standing pouch 1 is torn after tearing the pouring portion 60 upward from the notch 62 and opening the pouring outlet 63 to pour out the liquid or viscous content. The body sheet 2, 3 can be folded up and down. At this time, the first hook portion 11 and the second hook portion 21 are hooked together. As a result, the standing pouch 1 can be prevented from returning to the original state even when the thickness of the laminated film 30 is large and the elasticity of the body sheets 2 and 3 is strong as in the first embodiment. In addition, you may form the 1st latching part 11 and the 2nd latching part 21 by the 1st, 2nd latching part similar to 2nd-5th embodiment.

  In the first to eighth embodiments, the body sheet 2 and the body sheet 3 may be formed by folding one laminated film 30 in half.

  According to the present invention, it can be widely used in a standing gusset type standing pouch.

DESCRIPTION OF SYMBOLS 1 Pouch with spout 2, 3 trunk | drum sheet | seat 4 bottom sheet 6 pouring member 8 bottom seal part 9 top seal part 11 1st latching part 21 2nd latching part 30 laminated film 31 outer coating layer 35 thermal adhesive layer

Claims (7)

  The periphery of the bottom sheet sandwiched between the lower parts of the pair of body sheets facing each other in the front and back is thermally bonded to the body sheet by the bottom seal part, and the periphery of the body sheet above the bottom seal part is In a standing pouch thermally bonded by a seal portion, formed on a first hook portion formed on one side of the upper portion of the upper seal portion in the left-right direction and the bottom seal portion on the same side in the left-right direction as the first hook portion. The standing pouch is provided with a second hooking portion, and the first hooking portion and the second hooking portion are hooked when the body sheet is folded in the vertical direction.   The first latching portion is formed by a slit extending from the side end of the upper seal portion, and the second latching portion is formed by a through hole or a slit into which the upper seal portion above the first latching portion can be inserted. The standing pouch according to claim 1, further comprising an insertion portion, wherein the first sealing portion and the second hooking portion are hooked by inserting the upper seal portion into the insertion portion.   The standing pouch according to claim 2, wherein the second hooking portion has a slit extending from the insertion portion toward a side edge of the upper seal portion and meshing with the first hooking portion.   The second hook part is formed by a slit extending from the side end of the bottom seal part, and the first hook part has an insertion part into which the bottom seal part below the second hook part can be inserted, The standing pouch according to claim 1, wherein the bottom seal portion is inserted into the insertion portion and the first hook portion and the second hook portion are hooked.   5. The standing pouch according to claim 4, wherein the first hooking portion has a slit extending from the insertion portion toward a side edge of the bottom seal portion and meshing with the second hooking portion.   One of the first latching portion and the second latching portion has a latching piece formed by an arch-shaped slit, and the other has both ends in the through-hole or the trunk sheet for inserting the latching piece. The standing pouch according to claim 1 or 2, wherein the standing pouch is formed by a slit.   A spout for contents is provided at an upper portion, and the spout is arranged on the opposite side in the left-right direction with respect to the first hook and the second hook. The standing pouch according to any one of 6 above.

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