JP2015123996A - Spout member and bag with spout member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spout member which enables contents stored in a bag body to be spouted efficiently, allows pressure bonding by a uniform pressure and heat in heat-sealing the spout member to the bag body, and facilitates the alignment of the spout member with a pressure bonding mold in the pressure bonding.SOLUTION: A spout member 10 includes: a cylindrical neck part 20 to be a spout passage 21 of contents; and a flange part 30 which is provided in a lower end part of the neck part 20 and has a top surface 31 to be joined to a bag body 60 for storing the contents and a bottom surface 32 located on the opposite side of the top surface 31. The bottom surface 32 of the flange part 30 is a flat surface, and a recessed part 33 provided continuously to the entire periphery of an inner peripheral surface 25 of the neck part 20 is provided in the bottom surface 32 of the flange part 30. A blocking prevention member 40 protruding from the inner peripheral surface 25 of the neck part 20 to the inner side is provided.

Description

  The present invention is provided with a cylindrical neck portion serving as a content outlet channel, a top surface joined to a bag body containing the content, and the top surface opposite to the top surface. It is related with the spout member which consists of a flange part which has a bottom face on the side.

  A bag-in-box is a bag made of a plastic bag provided with a spout member, and a fluid content such as a liquid or gel, for example, various beverages such as concentrated fruit juice, mineral water, and alcoholic beverages. A packaging container that is filled with an outer packaging made of corrugated cardboard or the like.

  This bag-in-box has a structure in which a plastic bag housed in an exterior body has water resistance, chemical resistance, gas barrier property, etc. with respect to the contents, and the exterior body has rigidity necessary for transportation and storage. is there. The bag-in-box configured as described above has advantages that it does not need to be collected, is useful for labor saving and cost saving, and can be easily transported and stored to reduce distribution costs. In view of these advantages, this bag-in-box is used instead of the stainless steel tank that has been conventionally used to supply beverages or beverage concentrates to a drink dispenser.

  When the bag-in-box is used in a dispenser, the contents stored in the bag body are sucked from the spout member by the suction pump, and the contents are supplied to the dispenser. When the contents are sucked by the suction pump, if the contents are reduced, the inner surface of the film forming the bag body at a position facing the spout member may be in close contact with the spout member. In such a case, the pouring channel of the spout member is closed by the inner surface of the film forming the bag body, and the contents of the bag body cannot be poured out to the end, and the use efficiency of the contents is improved. May decrease.

  In order to solve this problem, a flange having a cylindrical neck portion serving as an outlet flow path for contents, a top surface joined to the bag body, and a bottom surface opposite to the top surface, provided below the neck portion. There is a spout member provided with a portion provided with a plurality of protrusions on the bottom surface of the flange portion (for example, Patent Document 1 and Patent Document 2). By adopting such a configuration, even if the inner surface of the film forming the bag body at a position facing the spout member is in close contact with the spout member, the protrusion is provided without providing a new member such as a dip strip. Thus, a gap is formed between the film and the bottom surface of the flange portion, and the contents can be sucked through the gap, and the contents can be poured out to the end.

JP-A-2005-231686 JP 2011-235933 A

  However, in patent document 1 and patent document 2, the protrusion part is provided in the bottom face of the flange part over the whole region. Therefore, when the bag body and the spout member are joined by thermal fusion, the bottom surface corresponding to any one of the crimping portions will have a gap between the projections and the projections, Due to the deformation of the protrusions and the presence of a gap, there is a problem in that pressure bonding cannot be performed by uniform pressure and heating, resulting in poor adhesion. In order to prevent this adhesion failure, it is conceivable to use a jig that forms a flat surface on the bottom surface side corresponding to the crimping part by fitting it to the protrusion on the bottom surface. Since it is necessary to align the spout member with the jig in order to fit the jig, the productivity of the bag including the spout member is deteriorated. Therefore, the present invention can efficiently pour out the contents contained in the bag body, and when the spout member is heat-sealed to the bag body, it can be crimped by uniform pressure and heating. An object of the present invention is to provide a spout member that can be easily aligned with the spout member and a crimping die.

For this reason, the invention according to claim 1 is a cylindrical neck portion serving as a content extraction channel;
In the spout member comprising a flange portion provided at the lower end portion of the neck portion and having a top surface joined to the bag body containing the contents and a bottom surface opposite to the top surface,
The bottom surface of the flange portion is a flat surface, and a concave portion is provided on the bottom surface of the flange portion to be connected to the entire circumference of the inner peripheral surface of the neck portion.
An occlusion prevention member that protrudes inward from the inner peripheral surface of the neck is provided.

The invention according to claim 2 is the spout member according to claim 1,
The blocking prevention member is connected to the bottom surface of the recess.

The invention according to claim 3 is the spout member according to claim 1 or 2,
The blocking prevention member is connected to the bottom surface of the flange portion.

The invention according to claim 4 is the spout member according to claim 1 or 2,
The lower surface of the blocking prevention member is flush with the bottom surface of the flange portion.

The invention according to claim 5 is the spout member according to any one of claims 1 to 4,
The blocking prevention member is connected to the inner peripheral surface of the neck.

The invention according to claim 6 is the spout member according to claim 1 or 2,
The lower surface of the blocking prevention member protrudes downward from the bottom surface of the flange portion.

The invention according to claim 7 is the spout member according to any one of claims 1 to 6,
The blocking prevention member is provided so as to avoid the vicinity of the central portion of the extraction channel of the neck.

The invention according to claim 8 is the spout member according to any one of claims 1 to 7,
The blocking prevention member is a columnar member, and both ends are connected to the neck portion or the flange portion.

  The invention according to claim 9 is a bag with a spout, comprising the spout member according to any one of claims 1 to 8.

  According to invention of Claim 1, while being provided in the cylindrical neck part used as the extraction flow path of the content, and the lower end part of the said neck part, the top surface joined to the bag body which accommodates the said content And a flange portion having a bottom surface opposite to the top surface, the bottom surface of the flange portion is a flat surface, and the bottom surface of the flange portion includes the entire circumference of the inner peripheral surface of the neck portion. A concave portion that is continuously provided is provided, and a blocking prevention member that protrudes inward from the inner peripheral surface of the neck portion is provided.

  For this reason, it is possible to efficiently pour out the contents contained in the bag body, and when the spout member is heat-sealed to the bag body, it can be crimped by uniform pressure and heating, Adhesion failure can be prevented. Further, when the spout member is heat-sealed to the bag body, the spout member and the crimping mold can be easily aligned, so that the crimping can be performed easily.

  According to invention of Claim 2, since the said obstruction | occlusion prevention member is connected with the bottom face of the said recessed part, it is possible to pour out the content accommodated in the bag body efficiently, and the spout When the member is heat-sealed to the bag, it can be pressure-bonded by uniform pressure and heating, and poor adhesion can be prevented. Further, when the spout member is heat-sealed to the bag body, the spout member and the crimping mold can be easily aligned, so that the crimping can be performed easily.

  According to invention of Claim 3, since the said obstruction | occlusion prevention member is connected with the bottom face of the said flange part, it can pour out the contents accommodated in the bag body efficiently, When the outlet member is heat-sealed to the bag body, it can be pressure-bonded by uniform pressure and heating, and adhesion failure can be prevented. Further, when the spout member is heat-sealed to the bag body, the spout member and the crimping mold can be easily aligned, so that the crimping can be performed easily.

  According to invention of Claim 4, since the lower surface of the said closure prevention member is the same surface as the bottom face of the said flange part, when heat-sealing a spout member to a bag body, a spout member and a crimping | compression-bonding metal It is not necessary to consider the influence of the blocking prevention member in the alignment with the mold, and the crimping can be performed in the conventional work process.

  According to the invention described in claim 5, since the blocking prevention member is connected to the inner peripheral surface of the neck, it is possible to efficiently pour out the contents contained in the bag. When the spout member is heat-sealed to the bag, it can be pressure-bonded by uniform pressure and heating, and poor adhesion can be prevented. Further, when the spout member is heat-sealed to the bag body, the spout member and the crimping mold can be easily aligned, so that the crimping can be performed easily.

  According to invention of Claim 6, since the lower surface of the said blockage | closure prevention member protrudes below the bottom face of the said flange part, the content accommodated in the bag body can be poured out more efficiently and reliably. Is possible.

  According to invention of Claim 7, since the said obstruction | occlusion prevention member is provided avoiding the central part vicinity of the extraction flow path of the said neck, when filling a content through a spout member, a content passes. A flow path can be secured. Therefore, the blockage preventing member does not provide resistance to the passage of the contents at the time of filling, and the contents can be prevented from splashing and the contents can be filled efficiently and reliably.

  According to an eighth aspect of the present invention, the blockage preventing member is a columnar member, and both ends thereof are connected to the neck portion or the flange portion. It is possible to more efficiently and reliably dispense the contents contained in the container.

  According to invention of Claim 9, since it is a bag with a spout provided with the spout member in any one of Claims 1-8, the content accommodated in the bag body is poured out efficiently. It is possible to provide a spout-attached bag in which the bag body and the spout member are securely bonded.

It is a perspective view which shows an example of the spout member of this invention. It is a bottom view of the spout member in FIG. It is the AA line expanded sectional view of the spout member in FIG. It is a front view which shows an example of the bag with a spout of this invention. It is the BB sectional drawing of the bag with a spout in FIG. It is a figure explaining the connection to the dispenser of the bag in box using the bag with a spout of this invention. It is a perspective view which shows another example of the spout member of this invention. It is a bottom view of the spout member in FIG. FIG. 9 is an enlarged cross-sectional view of the spout member in FIG. It is a perspective view which shows another example of the spout member of this invention. It is a bottom view of the spout member in FIG. It is the DD line expanded sectional view of the spout member in FIG. It is a perspective view which shows another example of the spout member of this invention. It is a bottom view of the spout member in FIG. It is the EE line expanded sectional view of the spout member in FIG. It is a bottom view which shows another example of the spout member of this invention. It is a bottom view which shows another example of the spout member of this invention. It is a bottom view which shows another example of the spout member of this invention. It is a bottom view which shows another example of the spout member of this invention. It is a bottom view which shows another example of the spout member of this invention. It is a bottom view which shows another example of the spout member of this invention.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. In the specification, “upper” refers to the neck portion side described later, and “lower” refers to the franc portion side described later. 1 is a perspective view showing an example of the spout member of the present invention, FIG. 2 is a bottom view of the spout member in FIG. 1, and FIG. 3 is an enlarged sectional view taken along line AA of the spout member in FIG. It is. Here, FIG. 1 is a perspective view seen from a flange portion side to be described later. Moreover, a bottom view is a view (bottom view) seen from the lower side of a flange part. The spout member 10 includes a cylindrical neck portion 20 and a flange portion 30 provided at the lower end portion of the neck portion 20, and a cap 50 (not shown) is detachably attached to the upper end portion of the neck portion 20.

  The neck portion 20 has a hollow cylindrical shape, and the hollow portion serves as an extraction channel 21 through which the contents pass. A male screw 22 is provided on the upper outer peripheral surface of the neck portion 20, and the cap 50 is detachably attached to the spout member 10 by a screw structure of a female screw provided on the inner surface of the outer wall portion and the male screw 22 of the neck portion 20. Attached to. An intermediate flange 23 is provided on the outer peripheral surface of the neck portion 20 and in the center portion in the attaching / detaching direction of the cap 50. A base 24 that protrudes outward in the radial direction is provided at the lower end of the neck 20.

  In addition, the attachment structure to the spout member 10 of the cap 50 is not limited to the above-mentioned structure, What is necessary is just the structure which can attach the extraction flow path 21 so that sealing is possible. Further, the neck 20 may have a configuration in which a check valve or the like is provided in the extraction flow path 21, and the cross-sectional shape of the extraction flow path 21 may be a square shape or the like. The intermediate flange 23 is used for fitting to an exterior body 70 described later. However, the intermediate flange 23 may be used for connection of a connection tube when sucking the contents, and is provided with a plurality of intermediate flanges. The shape, size, number, etc. can be designed as appropriate.

  For example, when the intermediate flange 23 is used for fitting to the exterior body 70 which is a rectangular parallelepiped box made of cardboard or the like, the spout is formed in a hole smaller than the outer diameter of the intermediate flange 23 formed in the exterior body 70 in advance. The neck 20 of the member 10 is inserted from the inside of the exterior body 70. Then, the exterior body 70 is fitted between the intermediate flange 23 and the base portion 24, and the spout member 10 is fixed to the exterior body 70.

  By fixing the spout member 10 in this manner, the spout member 10 is held in a state in which only a portion above the intermediate flange 23 protrudes outside the exterior body 70. Accordingly, it is possible to prevent the spout member 10 from entering the exterior body 70 by the intermediate flange 23 serving as a stopper. In addition, the structure which does not provide the intermediate | middle flange 23 may be sufficient.

  The flange portion 30 is provided at the lower end portion of the neck portion 20 via the base portion 24. The flange portion 30 has a disk shape, and includes a flat top surface 31 to be joined to a bag body 60 to be described later and a flat bottom surface 32 opposite to the top surface 31. By providing the flange portion 30 to the neck portion 20 via the base portion 24, the strength of the connection portion between the neck portion 20 and the flange portion 30 is increased. In addition, the shape of the flange part 30 is not limited to the above-mentioned shape, and has a flat top surface 31 joined to the bag body 60 and a flat bottom surface 32 opposite to the top surface 31. For example, the outer shape of the bottom view may be a square or a polygon.

  The bottom surface 32 of the flange portion 30 is provided with a recess 33 that is continuous with the entire circumference of the inner peripheral surface 25 of the neck portion 20. Two blocking prevention members 40 are provided on the flange portion 30. The blocking prevention member 40 has a prismatic shape, and both ends thereof are connected to the bottom surface 34 and the outer peripheral surface 35 of the recess 33. That is, both ends of the blocking prevention member 40 are connected to the flange portion 30.

  The two blocking prevention members 40 are arranged in parallel when viewed from the bottom, cross the region on the inner side of the inner peripheral surface 25 of the neck portion 20, and divide the region. That is, the blocking prevention member 40 is provided so as to cross the pouring channel 21 and divides the lower opening of the pouring channel 21 into three openings 26A, 26B, and 26C.

  The blocking prevention member 40 is provided so as to avoid the vicinity of the central portion of the flow path cross section in the extraction flow path 21. That is, a region where the blocking prevention member 40 is not interposed is formed in the vicinity of the center of the cross section of the extraction flow channel 21. This region is a region wider than the circular region 27 having a diameter R with the central axis O in the flow direction of the extraction flow channel 21 as viewed from the bottom.

  The lower surface 41 of the blocking prevention member 40 is the same surface as the bottom surface 32 of the flange portion, and forms a continuous flat surface (see FIG. 3). And the spout member 10 does not have a member which protrudes below from the bottom face 32 of a flange part.

  In addition, the obstruction | occlusion prevention member 40 is not limited to the above-mentioned structure, It protrudes toward the inner side from the inner peripheral surface 25 of the neck part 20, and is interposed in the extraction flow path 21. That's fine.

  The size of each component of the flange portion 30 is such that the depth C1 of the concave portion 33 is 1 to 10 mm, the width C2 of the concave portion 33 is 1 to 10 mm, the width W of the blocking prevention member 40 is 1 to 10 mm, and the diameter R of the region 27 is. Although it is preferable that it is 5 mm or more, it is not limited to this. It is designed appropriately depending on the type of contents, the size of the extraction channel, the material of the bag, and the like.

  Although the spout member 10 is made of synthetic resin, it can be heat-sealed with a bag body 60 to be described later, and there is no sanitary problem even if it comes into contact with the quality of the contents and the contents. If there is no particular limitation. In addition, it is desirable that it is formed by injection molding polypropylene, medium density or high density polyethylene, polyester, polycarbonate or the like in terms of excellent heat-fusibility, pressure heat sterilization, heat resistance, and the like.

  Next, the bag with a spout of the present invention will be described with reference to FIGS. 4 and 5. The bag body 60 to which the spout member 10 is attached is a flat bag of a four-side seal formed of a plastic film, and has a front part 61 and a back part 62, and a top seal part 63 and a side seal part at the peripheral part thereof. 64, 64, in the bottom seal portion 65, the front portion 61 and the back portion 62 are joined by heat fusion or the like.

  The front part 61 and the back part 62 are composed of an inner layer film 66 that forms the inner surface of the bag body 60 and an outer layer film 67 that forms the outer surface of the bag body 60 and has a two-layer structure.

  In addition, the bag body 60 is not limited to the above-mentioned shape, For example, the bag body 60 etc. which have the folding part folded inside by the both sides may be sufficient. Further, the structure of the bag body 60 may not be a two-layer structure, but may be a single-layer structure or a multilayer structure having two or more layers.

  The inner layer film 66 and the outer layer film 67 are not particularly limited plastic films. For example, a plastic film having heat sealing properties, a plastic film having strength and high heat resistance, a plastic film having gas barrier properties, and water vapor A plastic film having barrier properties, other plastic films, and the like can be used.

  Specifically, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid Polyolefin resins such as ethyl copolymer, ethylene-acrylic acid copolymer, methylpentene resin, polybutene resin, polyvinyl chloride resin, polyvinylidene chloride resin, vinyl chloride-vinylidene chloride copolymer, polyacryl Resin, polyacrylonitrile resin, polystyrene resin, polyester resin, polyamide resin, polycarbonate resin, polyvinyl alcohol, saponified ethylene-vinyl acetate copolymer, fluorine resin, diene resin, polyacetal resin, etc. Consists of Monolayer or multilayer films formed by laminating them are can be appropriately selected and used.

  Next, a method for attaching the spout member 10 to the bag body 60 will be described. The neck portion 20 of the spout member 60 is inserted from the inside into a hole (not shown) formed in the front portion 61 of the bag body 60 in advance, and the top surface 31 of the flange portion 30 and the inner surface of the front portion 61 of the bag body 60 are brought into contact with each other. Make contact. Using a crimping die (not shown), the top surface 31 of the flange portion 30 and the inner surface of the front portion 61 of the bag body 60 are heat-sealed.

  That is, the top surface 31 of the flange portion 30 and the inner surface of the inner layer film 66 of the front portion 61 of the bag body 60 are thermally fused, and the outer surface of the inner layer film 66 and the inner surface of the outer layer film 67 are fused. At this time, a portion not corresponding to the concave portion 33 on the bottom surface 32 side of the flange portion 30 is pressed and pressed.

  Accordingly, the portion corresponding to the crimping portion has no groove or protruding member, and is a flat surface which is continuous over the entire surface. Therefore, the crimping can be performed by uniform pressure and heating, and adhesion failure can be prevented. In addition, since it is not necessary to perform crimping using a jig fitted to the blocking prevention member 40 and the jig and the spout member 10 are not aligned, conventional work using an existing crimping apparatus is possible. Crimping is possible in the process.

  Here, there is no member projecting downward from the bottom surface 32 of the flange portion 30, and the bottom surface 32 of the flange portion 30 and the lower surface 41 of the blocking prevention member 40 are the same surface and form a continuous flat surface. Therefore, since the alignment between the spout member 10 and the crimping die can be performed including the outer peripheral end portion 36 of the flange portion 30, the alignment operation can be omitted and the operation time can be shortened.

  Next, use of the bag with a spout in which the spout member 10 described above is attached to the bag body 60 will be described. The bag with a spout, in which the contents are accommodated, is accommodated in an exterior body 70 that is a rectangular parallelepiped box made of cardboard or the like. As described above, the neck 20 of the spout member 10 is inserted from the inside of the exterior body 70 into a hole (not shown) formed in advance in the exterior body 70, and the exterior body 70 is fitted between the intermediate flange 23 and the base 24. The spout member 10 is fixed to the exterior body 70.

  Accordingly, only the portion above the intermediate flange 23 of the spout member 10 is projected to the outside of the exterior body 70 and used as the bag-in-box 71. For example, as shown in FIG. 6, when used in a dispenser 80 that provides a beverage, a tube connected to a suction pump 81 is connected to the spout member 10. The contents are sucked by the suction pump 81 and supplied to the dispenser 80 from the extraction channel 21 through the connection tube and the suction pump 81.

  When the contents are sucked by the suction pump 81 and the contents in the bag body 60 are reduced, the inner surface of the back surface portion 62 of the bag body 60, which is a position facing the spout member 10, is formed on the flange portion 30 of the spout member 10. Close contact with the bottom surface 32. That is, the inner surface of the inner layer film 66 in the back surface portion 62 of the bag body 60 is in close contact with the bottom surface 32 of the flange portion 30 of the spout member 10. At this time, the inner surface of the inner layer film 66 in the back surface portion 62 of the bag body 60 comes into contact with the lower surface 41 of the blocking prevention member 40.

  Since the inner layer film 66 has a certain degree of rigidity, the inner layer film 66 does not enter the openings 26A, 26B, and 26C on the lower side of the pouring channel 21 to block the pouring channel 21. That is, the blockage preventing member 40 supports the inner layer film 66 and prevents the lower opening of the pouring channel 21 from being blocked by the inner layer film 66.

  Further, due to the rigidity of the inner layer film 66, wrinkles are generated in the inner layer film 66 on the bottom surface 32 of the flange portion 30.

  The contents can flow out into the extraction channel 21 using the wrinkle gap, the concave portion 33, and the openings 26A, 26B, and 26C as a channel, and the channel continuing to the extraction channel 21 is the back surface portion of the bag body 60. It is not blocked by the inner layer film 66 at 62. Therefore, the contents can be poured out to the end, and the contents can be poured out efficiently.

  When the contents are reduced when the contents are sucked and poured out, the blocking prevention member 40 comes into contact with the inner surface of the inner layer film 66 in the back surface portion 62 of the bag body 60. Therefore, in order not to damage the bag body 60, it is desirable that the abutting portion has a curved surface and no edge is provided, and it is desirable to appropriately perform rounding or chamfering.

  Further, it is desirable that the blocking prevention member 40 is disposed symmetrically about the central axis O of the extraction flow path 21 in the bottom view. With such a configuration, when the contents are sucked and poured out, the contents can be sucked without being biased, and the contents can be poured out more efficiently.

  Further, the blockage preventing member 40 is provided so as to avoid the vicinity of the central part of the cross section of the flow path in the extraction flow channel 21, and a region (opening 26B) where the blockage preventing member 40 is not interposed is formed. This region becomes a flow path through which the content passes when the content is filled through the spout member 10. Therefore, the blockage preventing member 40 does not provide resistance to the inflow of the contents at the time of filling, prevents the contents from splashing, and can efficiently and reliably fill the contents.

  By the way, the spout member 10 shown in FIGS. 1 to 3 is provided with two blocking prevention members 40 that are prismatic in shape, are connected to the flange portion 30 at both ends, and are arranged in parallel in a bottom view. It has been. And the lower surface 41 of the obstruction | occlusion prevention member 40 is the same surface as the bottom face 32 of a flange part, and forms the continuous flat surface. However, the number, shape, size, arrangement position, and the like of the blocking prevention member 40 are not limited to this configuration. The blocking prevention member 40 protrudes inward from the inner peripheral surface 25 of the neck portion 20, and may be any member that is interposed in the extraction flow path 21.

  For example, the blocking prevention member 140 as shown in FIGS. 7 to 9 may be used. The description of the same configuration as that of the above-described embodiment is omitted. The spout member 110 is formed by projecting the lower surface 41 of the blocking prevention member 40 in the spout member 10 described above downward from the bottom surface 32 of the flange portion 30. Here, the protrusion amount T is preferably 1 to 10 mm, but is not limited to this, and is appropriately designed depending on the type of contents, the size of the extraction flow path, the material of the bag, and the like. .

  With such a configuration, when the content is sucked and poured out, the lower surface 141 of the blocking prevention member 140 comes into contact with the inner surface of the inner layer film 66 in the back surface portion 62 of the bag body 60. Since the lower surface 141 of the blocking prevention member 140 protrudes downward from the bottom surface 132 of the flange portion 130, the inner layer film 66 is lifted downward from the bottom surface 132 of the flange portion 130 where the blocking prevention member 140 is provided. Due to the rigidity of the inner layer film 66, wrinkles starting from the blocking prevention member 140 are generated in the inner layer film 66 on the bottom surface 132.

  Further, since the inner layer film 66 has a certain degree of rigidity, it is more effectively prevented that the inner layer film 66 enters the openings 126A, 126B, and 126C below the pouring channel 121 and closes the pouring channel 121. To do.

  The contents can flow out into the extraction channel 121 through the wrinkle gap, the concave portion 133, and the openings 126A, 126B, and 126C, and the channel continuing to the extraction channel 121 is the back surface portion of the bag body 60. It is not blocked by the inner layer film 66 at 62. Therefore, the contents can be poured out to the end, and the contents can be poured out efficiently.

  Here, in order to attach the spout member 110 to the bag body 60, the top surface 131 of the flange portion 130 and the inner surface of the front portion 61 of the bag body 60 are heat-sealed using a crimping die (not shown). At this time, a portion not corresponding to the concave portion 133 on the bottom surface 132 side of the flange portion 130 is pressed and pressed.

  Accordingly, the entire surface of the portion corresponding to the crimping portion is a flat surface, so that the crimping can be performed by uniform pressure and heating, and adhesion failure can be prevented. Further, although it is necessary to perform pressure bonding using a jig that fits in a portion that protrudes downward from the bottom surface 132 of the flange portion 130 in the blocking prevention member 140, the jig and the spout member 110 can be easily aligned. Therefore, the crimping operation can be easily performed.

  Here, the blocking prevention member 140 protrudes downward from the bottom surface 132 of the flange portion 130. However, the bottom surface 132 of the flange portion 130 is a flat surface having no grooves or protrusions. Accordingly, since the alignment between the spout member 110 and the crimping die can be performed including the outer peripheral end 136 of the flange portion 130, the alignment operation can be simplified and the operation time can be shortened.

  Here, the lower surface 141 of the blocking prevention member 140 protrudes downward from the bottom surface 132 of the flange portion 130, and comes into contact with the inner surface of the inner layer film 66 in the back surface portion 62 of the bag body 60. Therefore, in order to prevent the bag body 60 from being damaged, it is desirable to appropriately round and chamfer the portion of the blocking prevention member 140 that protrudes downward from the bottom surface 32 of the flange portion 30.

  Moreover, the structure shown in FIGS. 10-12 may be sufficient as the obstruction | occlusion prevention member. The description of the same configuration as that of the above-described embodiment is omitted. The spout member 210 is obtained by connecting the blocking prevention member 40 in the spout member 10 described above to the bottom surface 32 of the flange portion 30. That is, the blocking member 240 of the spout member 210 is connected to the vicinity of the recess 232 in a state where the upper surfaces 242 of both ends are joined to the bottom surface 232 of the flange portion 230.

  Here, the thickness H1 of the blocking prevention member 240 is preferably 1 to 10 mm, but is not limited to this, and is appropriately designed depending on the type of contents, the size of the extraction flow path, the material of the bag body, and the like. Is.

  With such a configuration, when the contents are sucked and poured out, the lower surface 241 of the blocking prevention member 240 comes into contact with the inner surface of the inner layer film 66 in the back surface portion 62 of the bag body 60. Since the lower surface 241 of the blocking prevention member 240 protrudes downward from the bottom surface 232 of the flange portion 230, the inner layer film 66 is lifted downward from the bottom surface 132 of the flange portion 230 where the blocking prevention member 240 is provided. Due to the rigidity of the inner layer film 66, wrinkles starting from the blockage prevention member 240 are generated in the inner layer film 66 on the bottom surface 232.

  Further, since the inner layer film 66 has a certain degree of rigidity, it is more effectively prevented that the inner layer film 66 enters the openings 226A, 226B, and 226C below the pouring channel 221 and closes the pouring channel 121. To do.

  The contents can flow out into the extraction channel 221 using the wrinkle gap, the openings 126A, 126B, 126C, and the recess 233 as a channel, and the channel leading to the extraction channel 221 is the back surface of the bag body 60. It is not blocked by the inner layer film 66 at 62. Therefore, the contents can be poured out to the end, and the contents can be poured out efficiently.

  Here, in order to attach the spout member 210 to the bag body 60, the top surface 231 of the flange portion 230 and the inner surface of the front portion 61 of the bag body 60 are heat-sealed using a crimping die (not shown). At this time, a portion corresponding to the outer region of the blocking prevention member 240 is pressed and pressed.

  Accordingly, since the entire surface of the portion corresponding to the crimping portion is a flat surface, the crimping can be performed by uniform pressure and heating, so that adhesion failure can be prevented. Moreover, although it is necessary to crimp using the jig | tool fitted to the obstruction | occlusion prevention member 240, since position alignment with this jig | tool and the spout member 210 can be performed easily, a crimping | compression-bonding operation can be performed easily.

  Here, the blocking prevention member 240 protrudes downward from the bottom surface 232 of the flange portion 230. However, the outer region of the blocking prevention member 240 on the bottom surface 232 of the flange 230 is a flat surface having no grooves or protrusions. Therefore, since the alignment between the spout member 110 and the crimping die can be performed including the outer peripheral end 236 of the flange portion 230, the alignment operation can be simplified and the operation time can be shortened.

  The blocking prevention member 240 protrudes downward from the bottom surface 232 of the flange portion 230, and comes into contact with the inner surface of the inner layer film 66 in the back surface portion 62 of the bag body 60. Therefore, in order to prevent the bag body 60 from being damaged, it is desirable that the blocking prevention member 240 be appropriately rounded or chamfered.

  Moreover, the structure shown in FIGS. 13-15 may be sufficient as the obstruction | occlusion prevention member. The description of the same configuration as that of the above-described embodiment is omitted. The spout member 310 is obtained by connecting the blocking prevention member 40 in the spout member 10 described above to the inner peripheral surface 25 of the neck portion 20. That is, both ends of the blocking prevention member 340 of the spout member 310 are connected to the inner peripheral surface 325 of the neck portion 320.

  The lower surface 341 of the blocking prevention member 340 is flush with the bottom surface 334 of the recess 333 (see FIG. 15). The spout member 310 does not have a member protruding downward from the bottom surface 332 of the flange portion 330. Here, the thickness H2 of the blocking prevention member 240 is preferably 1 to 10 mm, but is not limited thereto, and is appropriately designed depending on the type of contents, the size of the extraction flow path, the material of the bag body, and the like. Is.

  With this configuration, when the content is sucked and poured out, the lower surface 341 of the blocking prevention member 340 comes into contact with the inner surface of the inner layer film in the back surface portion 62 of the bag body 60. Since the inner layer film 66 has a certain degree of rigidity, the inner layer film 66 is prevented from entering the openings 326A, 326B, and 326C on the lower side of the pouring channel 321 and closing the pouring channel 321.

  Further, due to the rigidity of the inner layer film 66, wrinkles are generated in the inner layer film 66 on the bottom surface 332 of the flange portion 330.

  The contents can flow out to the extraction flow path 321 using the wrinkle gap, the recess 333, and the openings 326A, 326B, and 326C as a flow path, and the flow path leading to the extraction flow path 321 is the back surface portion of the bag body 60. It is not blocked by the inner layer film 66 at 62. Therefore, the contents can be poured out to the end, and the contents can be poured out efficiently.

  Here, in order to attach the spout member 310 to the bag body 60, the top surface 331 of the flange portion 330 and the inner surface of the front portion 61 of the bag body 60 are heat-sealed using a crimping die (not shown). At this time, a portion not corresponding to the concave portion 333 on the bottom surface 332 side of the flange portion 330 is pressed and pressed.

  Accordingly, the entire surface of the portion corresponding to the crimping portion is a flat surface, so that the crimping can be performed by uniform pressure and heating, and adhesion failure can be prevented. In addition, since it is not necessary to perform crimping using a jig fitted to the blocking prevention member 340 and the jig and the spout member 310 are not aligned, conventional work using an existing crimping apparatus is possible. Crimping is possible in the process.

  Here, since there is no member projecting downward from the bottom surface 332 of the flange portion 330, the positioning of the spout member 310 and the crimping die can be performed including the outer peripheral end portion 336 of the flange portion 330. Can be omitted, and the working time can be shortened.

  Moreover, the structure shown in FIG. 16 may be sufficient as the obstruction | occlusion prevention member. The description of the same configuration as that of the above-described embodiment is omitted. The spout member 410 is obtained by arranging the blocking prevention member 40 in the spout member 10 described above in a V shape in a bottom view.

  Even if it is such a structure, it has the same effect as the above-mentioned pouring outlet member 10, can pour a content to the last, and can pour a content efficiently. Further, when the spout member 410 is heat-sealed to the bag body 60, it can be pressure-bonded by uniform pressure and heating, and adhesion failure can be prevented. In addition, since it is not necessary to perform crimping using a jig fitted to the blocking prevention member 440 and the jig and the spout member 410 are not aligned, conventional work using an existing crimping apparatus is possible. Crimping is possible in the process.

  Moreover, the structure shown in FIG. 17 may be sufficient as the obstruction | occlusion prevention member. The description of the same configuration as that of the above-described embodiment is omitted. The spout member 510 is provided with three blocking prevention members 40 in the spout member 10 described above.

  The blocking member 540 of the spout member 510 is disposed in a substantially triangular shape when viewed from the bottom. The three blocking prevention members 540 cross the pouring channel 521 and divide the lower opening of the pouring channel 521 into four openings 526A, 526B, 526C, and 526D.

  Even if it is such a structure, it has the same effect as the above-mentioned pouring outlet member 10, can pour a content to the last, and can pour a content efficiently. Further, when the spout member 510 is heat-sealed to the bag body 60, it can be pressure-bonded by uniform pressure and heating, and adhesion failure can be prevented. In addition, since it is not necessary to perform crimping using a jig fitted to the blocking prevention member 540 and the jig and the spout member 510 are not aligned, conventional work using an existing crimping apparatus is possible. Crimping is possible in the process.

  Here, since the lower side opening part of the extraction flow path 521 is divided into four openings 526A, 526B, 526C, and 526D, each opening area becomes small. Therefore, the inner layer film 66 becomes more difficult to enter through the openings 526A, 526B, 526C, and 526D, and does not block the extraction flow path 521. And the contents can be poured out to the end, and the contents can be poured out efficiently.

  Moreover, the structure shown in FIG. 18 may be sufficient as the obstruction | occlusion prevention member. The description of the same configuration as that of the above-described embodiment is omitted. The spout member 610 is provided with four blocking prevention members 40 in the spout member 10 described above.

  The blocking member 640 of the spout member 610 is disposed in a substantially square shape when viewed from the bottom. The end portions of the adjacent blocking prevention members 640 are joined to each other, and the joint portion 643 is connected to the bottom surface and the outer peripheral surface of the recess 633. The four blocking prevention members 640 cross the pouring channel 621 and divide the lower opening of the pouring channel 621 into five apertures 626A, 626B, 626C, 626D, and 626E.

  Even if it is such a structure, it has the same effect as the above-mentioned pouring outlet member 10, can pour a content to the last, and can pour a content efficiently. Further, when the spout member 610 is heat-sealed to the bag body 60, it can be pressure-bonded by uniform pressure and heating, and adhesion failure can be prevented. In addition, since it is not necessary to perform crimping using a jig fitted to the blocking prevention member 640 and the jig and the spout member 610 are not aligned, conventional work using an existing crimping apparatus is possible. Crimping is possible in the process.

  Here, since the lower side opening part of the extraction flow path 621 is divided into five openings 626A, 626B, 626C, 626D, and 626E, each opening area becomes small. Therefore, the inner layer film 66 is further less likely to enter through the openings 626A, 626B, 626C, 626D, and 626E, and does not block the dispensing flow path 621. And the contents can be poured out to the end, and the contents can be poured out efficiently.

  Further, the blocking preventing member 640 is firmly fixed to the flange portion 630 because the joint portion 644 is connected to the flange portion 630. The blocking prevention member 640 may have a configuration in which both ends thereof are connected to the flange portion 630.

  Moreover, the structure shown in FIG. 19 may be sufficient as the obstruction | occlusion prevention member. The description of the same configuration as that of the above-described embodiment is omitted. The spout member 710 is provided with a total of four clogging prevention members 40 in the spout member 10 described above, two in pairs.

  The pair of blocking prevention members 740 are joined in the vicinity of each central portion, and both ends of the pair are connected to the bottom surface and the outer peripheral surface of the recess 733. Similarly, the other set of blocking prevention members 740 are joined in the vicinity of the respective central portions, and both ends thereof are connected to the bottom surface and the outer peripheral surface of the recess 733. The two sets of blocking prevention members 740 are disposed symmetrically about the central axis O of the extraction flow path 721. These four blocking prevention members 740 cross the pouring channel 721 and divide the lower opening of the pouring channel 721 into seven openings 726A, 726B, 726C, 726D, 726E, 726F, and 726G.

  Even if it is such a structure, it has the same effect as the above-mentioned pouring outlet member 10, can pour a content to the last, and can pour a content efficiently. Further, when the spout member 710 is heat-sealed to the bag body 60, it can be pressure-bonded by uniform pressure and heating, and adhesion failure can be prevented. In addition, since it is not necessary to perform crimping using a jig fitted to the blocking prevention member 740 and the jig and the spout member 710 are not aligned, the conventional operation using the existing crimping apparatus is performed. Crimping is possible in the process.

  Here, since the lower side opening part of the extraction flow path 721 is divided into seven openings 726A, 726B, 726C, 726D, 726E, 726F, and 726G, each opening area becomes small. Therefore, the inner layer film 66 is further less likely to enter through the openings 726A, 726B, 726C, 726D, 726E, 726F, and 726G, and does not block the dispensing flow path 721. And the contents can be poured out to the end, and the contents can be poured out efficiently.

  In addition, since the pair of blocking prevention members 740 are joined in the vicinity of the respective central portions and are connected to the flange portion 730, they are firmly fixed to the flange portion 630.

  Moreover, the structure shown in FIG. 20 may be sufficient as the obstruction | occlusion prevention member. The description of the same configuration as that of the above-described embodiment is omitted. The spout member 810 is formed by forming the blockage preventing member 40 in the spout member 10 described above into a protruding shape and providing four.

  The blocking member 840 of the spout member 810 has a prismatic shape, and one end thereof is connected to the bottom surface and the outer peripheral surface of the recess 833. The blocking prevention members 840 are disposed at substantially equal intervals in the radial direction around the central axis O of the extraction flow path 821. Each of the four blocking prevention members 840 protrudes inward from the inner peripheral surface of the neck, and a part thereof is interposed in the extraction flow path 821.

  Even if it is such a structure, it has the same effect as the above-mentioned pouring outlet member 10, can pour a content to the last, and can pour a content efficiently. Here, when the content is reduced when the content is sucked and dispensed, the lower surface of the blocking prevention member 840 comes into contact with the inner surface of the inner layer film 66 in the back surface portion 62 of the bag body 60. Since the inner layer film 66 has a certain degree of rigidity, a gap is formed between the adjacent blocking prevention members 840 in the lower opening of the extraction channel 821. Since this gap can be used as a flow path to flow into the extraction flow path 821, the extraction flow path 821 is not blocked by the inner layer film 66. That is, the blocking prevention member 840 supports the inner layer film 66 and prevents blocking of the lower opening of the dispensing flow path 821 by the inner layer film 66. And the contents can be poured out to the end, and the contents can be poured out efficiently.

  Similarly to the above-described spout member 10, when the spout member 810 is heat-sealed to the bag body 60, it can be pressure-bonded by uniform pressure and heating, and adhesion failure can be prevented. In addition, since it is not necessary to perform crimping using a jig fitted to the blocking prevention member 840 and the jig and the spout member 810 are not aligned, conventional work using an existing crimping apparatus is possible. Crimping is possible in the process.

  Moreover, since the structure of the blocking prevention member 840 is simple, the spout member 840 can be easily manufactured. In addition, as shown in FIG. 21, the shape of the blocking prevention member may be a substantially semicircular flat plate shape in a bottom view. The blocking prevention member 940 has an end bent outwardly interposed in the extraction flow path 921.

  In addition, when the contents are reduced when the contents are sucked and poured out, the distal end portions of the blocking prevention members 840 and 940 on the side of the dispensing channels 821 and 921 are aligned with the inner layer film 66 in the back surface portion 62 of the bag body 60. Strong contact with the inner surface. Therefore, in order to prevent the bag body 60 from being damaged, it is desirable to appropriately round and chamfer the blocking prevention members 840 and 910.

  Here, the blocking member of the spout member 210, 310, 410, 510, 610, 710, 810, 940 shown in FIG. 7 to FIG. A region that is provided and does not include a blocking prevention member is formed. This area becomes a flow path through which the contents pass when filling the contents through the spout member. Therefore, the blockage preventing member does not serve as a resistance to the inflow of the contents at the time of filling, prevents the contents from splashing, and can efficiently and reliably fill the contents.

  Also, the blocking member 440, 540, 640, 740, 840, 940 of the spout member 410, 510, 610, 710, 810, 910 shown in FIGS. Although continuously provided, as shown in FIG. 12, the bottom surface of the flange portion may be provided in the vicinity of the concave portion.

  Further, as shown in FIG. 15, these blocking prevention members may be configured to be connected to the inner peripheral surface of the neck portion.

  Further, as shown in FIG. 9, these blocking prevention members may be formed by projecting the lower surface of the blocking prevention member downward from the bottom surface of the flange portion.

  The spout member is not limited to the above-described embodiment, and can take any form without departing from the spirit of the invention. It is good also as a structure which combined the above-mentioned embodiment. For example, the structure which combined the blocking prevention member 140 shown in FIGS. 7-9 and the blocking prevention member 340 shown in FIGS. 13-15 may be sufficient.

  With such a configuration, the blocking prevention member has a lower surface projecting downward from the bottom surface of the flange portion, and an upper surface projecting upward from the bottom surface of the recess. That is, the thickness of the blocking prevention member in the vertical direction increases, the strength of the blocking prevention member increases, and the blocking prevention member is firmly fixed.

  A bag with a spout having the configuration shown in FIGS. 4 and 5 in which the spout member 10 shown in FIGS. 1 to 3 is attached to the bag body 60 was created, and a bag-in-box 71 having the configuration shown in FIG. The contents were supplied to the dispenser 80 using this bag-in-box.

  Here, the dimensions of each part of the spout member 10 are as follows: the outer diameter of the flange portion 30 is φ63.5 mm, the cross section of the pour channel 21 is φ30 mm, the depth C1 of the concave portion 33 is 2.5 mm, and the width C2 of the concave portion 33. Is 5 mm, the width W of the blocking prevention member 40 is 4 mm, and the distance L between the blocking prevention members 40 is 15 mm.

  The outer dimensions of the bag body 60 were 480 mm long and 455 mm wide, and had a two-layer structure. The inner layer film 66 was a single layer film of LLDPE (linear low density polyethylene), and the outer layer film 67 was a laminated film of ONY (biaxially stretched nylon) and LLDPE. The contents were a concentrated juice concentrate.

  When producing the bag with the spout, the pouring member 10 was heat-sealed to the bag body 60, but it could be crimped by uniform pressure and heating, and no adhesion failure occurred. Further, although the contents are supplied to the dispenser 80, the contents in the bag body 60 are poured out to the end without the flow path leading to the pouring flow path 21 being closed by the inner surface of the back surface portion 62 of the bag body 60. We were able to. And the effectiveness mentioned above of this spout member has been confirmed.

  The present invention is not limited to a spout member and a bag with a spout used in a bag-in-box, but can be applied to a spout member and a bag with a spout used in a bag body of any plastic film. .

10, 110, 210, 310, 410, 510, 610, 710, 810, 910 Outlet member 20, 120, 220, 320 Neck 21, 121, 221, 321, 421, 521, 621, 721, 821, 921 Note Outlet channel 25, 125, 225, 325 Inner peripheral surface 30, 130, 230, 330, 430, 530, 630, 730, 830, 930 Flange portion 31, 131, 231, 331 Top surface 32, 132, 232, 332 , 432, 532, 632, 732, 832, 932 Bottom 33, 133, 233, 333, 533, 533, 733, 833, 933 Recess 40, 140, 240, 340, 440, 540, 640, 740, 840 , 940 Blocking prevention member 41, 141, 241, 341 Lower surface 60 Bag body

Claims (9)

A cylindrical neck that serves as a flow path for the contents;
In the spout member comprising a flange portion provided at the lower end portion of the neck portion and having a top surface joined to the bag body containing the contents and a bottom surface opposite to the top surface,
The bottom surface of the flange portion is a flat surface, and a concave portion is provided on the bottom surface of the flange portion to be connected to the entire circumference of the inner peripheral surface of the neck portion.
A spout member that is provided with a blocking prevention member that protrudes inward from the inner peripheral surface of the neck.   The spout member according to claim 1, wherein the blocking prevention member is connected to a bottom surface of the recess.   The spout member according to claim 1, wherein the blocking prevention member is connected to a bottom surface of the flange portion.   The spout member according to claim 1 or 2, wherein a bottom surface of the blocking prevention member is flush with a bottom surface of the flange portion.   The spout member according to any one of claims 1 to 4, wherein the blocking prevention member is connected to an inner peripheral surface of the neck portion.   The spout member according to claim 1, wherein a lower surface of the blocking prevention member protrudes downward from a bottom surface of the flange portion.   The spout prevention member according to any one of claims 1 to 6, wherein the blocking prevention member is provided so as to avoid the vicinity of the central portion of the extraction flow path of the neck.   The spout member according to any one of claims 1 to 7, wherein the blocking prevention member is a columnar member, and both ends thereof are connected to the neck portion or the flange portion.   A bag with a spout, comprising the spout member according to any one of claims 1 to 8.

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