Container with plug

Abstract

To provide a container with a plug capable of suppressing unintended opening even if it is a gusset bag type.SOLUTION: The container with a plug includes a body with a gusset having a front surface part, a rear surface part, a pair of side parts, and a bottom part, and a plug. Each of the top end portion of the front surface portion and the top end portion of the rear surface portion has a central portion that is in contact with the spout, a first portion that is positioned between the valley fold lines of the pair of side portions, and a second portion that is welded to the pair of side portions, in each of the pair of side portions, a portion that overlaps the second portion of the front surface portion and a portion that overlaps the second portion of the rear surface portion are joined to each other, and a first welded portion between the inner surface of the front surface portion and the inner surfaces of the pair of side portions extends from the second portion to a side end portion of the front surface portion, the second welding portion between the inner surface of the rear surface portion and the inner surfaces of the pair of side portions extends from the second portion to the side end portion of the rear surface portion, and each of the width of the first welding portion and the width of the second welding portion becomes narrower toward the bottom portion.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to a container with a spout. [Background technology]

[0002] Containers with stoppers (containers with stoppers) have traditionally been used as packaging containers for storing fluids such as beverages, food, liquid diets, medicines, detergents, cosmetics, and toiletries. Gusset bag-type containers with stoppers are also widely used from the perspective of the amount of fluid they can hold. Patent Document 1 listed below discloses a self-standing pouch container. In this pouch container, four seal lines are formed on the inner edge of the container, extending diagonally upward from both left and right ends of the installation surface. At least a portion of each of the four seal lines has a protrusion that protrudes toward the inside of the container beyond a reference line passing through both ends of the seal line. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-47939 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to quickly dispense a fluid contained in a spouted container, the spouted container may be subjected to strong pressure from the outside. In this case, depending on the fluidity of the fluid, the spouted container may expand. The force generated by this expansion, which acts from the inside of the spouted container to the outside, may cause the spouted container to be unintentionally opened near the spout before the fluid has been dispensed. This type of opening tends to occur more easily with gusset bag-type spouted containers.

[0005] An object of the present disclosure is to provide a container with a spout that can prevent unintentional opening even if it is a gusset bag type. [Means for solving the problem]

[0006] A spouted container according to one aspect of the present disclosure is a spouted container having a front portion, a rear portion, a pair of side portions that are valley-folded, and a bottom portion, and comprising a gusseted body capable of containing a fluid, and a spout attached to the gusseted body, wherein the top end of the front portion and the top end of the rear portion each have a central portion that contacts the spout, a first portion that is located between the valley fold lines of the pair of side portions, and a second portion that is distant from the central portion from the valley fold lines and is welded to the pair of side portions, and each of the pair of side portions In the above, a portion overlapping the second portion of the front portion and a portion overlapping the second portion of the rear portion are joined to each other, a first welded portion between the inner surface of the front portion and the inner surface of the pair of side portions extends from the second portion toward the bottom to the side end of the front portion, and a second welded portion between the inner surface of the rear portion and the inner surface of the pair of side portions extends from the second portion toward the bottom to the side end of the rear portion, and the width of the first welded portion in a first direction in which the pair of side portions face each other and the width of the second welded portion in the first direction each become narrower as they approach the bottom.

[0007] In this spout-equipped container, the portion of each of the pair of side sections that overlaps the second portion of the front section and the portion that overlaps the second portion of the rear section are joined to each other. Furthermore, the first welded portion between the inner surface of the front section and the inner surface of the pair of side sections extends from the second portion toward the bottom to the side edge of the front section, and the second welded portion between the inner surface of the rear section and the inner surface of the pair of side sections extends from the second portion toward the bottom to the side edge of the rear section. This suppresses expansion of the gusseted body near the central section and the first section when the gusseted body expands due to external pressure applied to the gusseted body. This reduces the likelihood of application of tensile force required for opening the gusseted body near the spout. This also reduces the likelihood of bag tearing, even in relatively weak sealed areas of the gusseted body (for example, sealed areas near the spout and near the valley fold lines). In addition, the width of the first welded portion in the first direction, in which the pair of side portions face each other, and the width of the second welded portion in the first direction each become narrower as they approach the bottom. This makes it less likely that the force generated by the expansion of the gusset-type body will be concentrated in a specific area. Therefore, with a spout-equipped container according to one aspect of the present disclosure, unintentional opening can be prevented even if the container is a gusset bag type.

[0008] At least one of the first welded portion and the second welded portion may have a triangular shape when viewed from the front, which effectively prevents the force generated by the expansion of the gusseted body from concentrating at a specific location.

[0009] In a front view, the dimension of the first welded portion in a second direction perpendicular to the first direction may be from two to five times the maximum width of the first welded portion, and / or the dimension of the second welded portion in the second direction may be from two to five times the maximum width of the second welded portion. In this case, it becomes difficult to effectively apply a tensile force for opening the gusset-type main body near the stopper.

[0010] The first welded portion may extend from the first and second portions of the front portion toward the bottom, and / or the second welded portion may extend from the first and second portions of the rear portion toward the bottom, thereby effectively reinforcing the relatively weak sealing portion of the gusseted body.

[0011] In the first direction, a portion of the first welded portion may be located closer to the center portion than the valley fold line, and / or a portion of the second welded portion may be located closer to the center portion than the valley fold line, thereby effectively reinforcing the relatively weak seal portion of the gusseted body.

[0012] When the gusseted body is expanded, the angle formed by the side edge of the front face and the side edge of the rear face may be an acute angle in a side view, which makes it difficult for a pulling force to be applied to the vicinity of the stopper of the gusseted body to open it, even when the gusseted body is expanded.

[0013] A portion of the first welded portion may be spaced apart from a side edge of the front portion, and / or a portion of the second welded portion may be spaced apart from a side edge of the rear portion. [Effects of the Invention]

[0014] According to one aspect of the present disclosure, a container with a spout that can prevent unintentional opening even if it is a gusset bag type can be provided. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a front view showing a spouted container according to an embodiment. [Figure 2] FIG. 2 is a side view showing a spouted container according to an embodiment. [Figure 3] FIG. 3 is a top view showing a container with a spout according to an embodiment. [Figure 4] FIG. 4 is a schematic diagram showing the inner surface of the front part included in the gusseted main body. [Figure 5] FIG. 5 is a diagram showing an example of use of the spouted container according to the embodiment. [Figure 6] FIG. 6 is an enlarged view of the main part of the spouted container according to the reference example when it is expanded. [Figure 7] FIG. 7 is an enlarged view of a main part of the spouted container according to the embodiment when it is expanded. [Figure 8]FIG. 8 is a schematic diagram showing the inner surface of the front part included in the gusseted body of the spouted container according to the first modified example. [Figure 9] FIG. 9 is a schematic diagram showing the inner surface of the front part included in the gusseted body of the spouted container according to the second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0016] A preferred embodiment of one aspect of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, the same elements or elements having the same functions will be designated by the same reference numerals, and redundant description will be omitted.

[0017] FIG. 1 is a front view of a spouted container according to an embodiment. FIG. 2 is a side view of a spouted container according to an embodiment. FIG. 3 is a top view of a spouted container according to an embodiment. The spouted container 100 shown in FIGS. 1 to 3 is a packaging bag capable of containing fluids such as food, nutrients, medicines, etc. In one example, the fluid can be poured out of the spouted container 100 by pressurizing the spouted container 100. The fluid is a flowable substance such as a liquid, gel, or jelly. In this embodiment, the fluid contained in the spouted container 100 is food for gastrostomy, and the spouted container 100 is connectable to a gastrostomy catheter or the like.

[0018] As shown in Figures 1 to 3, a spouted container 100 is an assembly including a container body 1 (gusseted body) capable of containing a fluid, and a spout 2 attached to the container body 1. Figures 1 to 3 show the spouted container 100 before use. Below, unless otherwise specified, the structure of the spouted container 100 before use will be described. Below, the left-to-right direction of the paper in Figure 1 may be referred to as the first direction X, the up-to-down direction of the paper in Figure 1 may be referred to as the second direction Y, and the depth direction of the paper in Figure 1 may be referred to as the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to one another.

[0019] As shown in FIGS. 1 to 3, the container body 1 is a bag-shaped member formed from one or more sheet members. In this embodiment, the container body 1 is formed by folding one sheet member and welding one portion of the sheet member to another portion. The container body 1 is flexible and therefore deformable when pressed from the outside. The sheet member is, for example, a laminate including a base layer, a barrier layer, a sealant layer, and the like. The base layer is, for example, a thermoplastic resin sheet such as a polyolefin sheet such as polyethylene or polypropylene, or a polyester sheet such as polyethylene terephthalate. The barrier layer is, for example, an aluminum foil attached to the base layer, or a sheet on which aluminum, silicon oxide, or the like is vapor-deposited. The sealant layer is, for example, a layered portion that imparts sealability by heat sealing and is formed from a thermoplastic resin sheet such as polyethylene or polypropylene. In this embodiment, a nylon layer is located between the barrier layer and the sealant layer in terms of flexibility of the container body 1. The nylon layer is, for example, a nylon film. 1, the outer frame portion 1a of the container body 1 in a front view is welded by heat sealing. Therefore, the fluid can be contained in an inner portion 1b of the container body 1 surrounded by the outer frame portion 1a in a front view.

[0020] The container body 1 has a front portion 11, a rear portion 12, a pair of side portions 13 and 14 that are valley-folded and face each other in the first direction X, and a bottom portion 15. The front portion 11, the rear portion 12, the pair of side portions 13 and 14, and the bottom portion 15 are all included in the sheet member. The front portion 11 is a portion that includes the front surface of the spouted container 100 and has a substantially rectangular shape, on which, for example, the product name and the like are written. The rear portion 12 is a portion that includes the back surface of the spouted container 100 and has a substantially rectangular shape, on which, for example, details of the contents and the like are written.

[0021] Each of the pair of side portions 13, 14 forms a gusset in the container body 1 and is located between the front portion 11 and the rear portion 12 in the third direction Z. In FIG. 1, the valley fold line L1 of the side portion 13 and the valley fold line L2 of the side portion 14 are indicated by dashed lines. In FIG. 1, the side portion 13 is located outside the valley fold line L1 in the first direction X, and the side portion 14 is located outside the valley fold line L2 in the first direction X. The bottom portion 15 is a portion that constitutes one end of the container body 1 in the second direction Y, and includes, for example, the fold of the sheet member. Note that this end of the container body 1 in the second direction Y is a portion to which the spout 2 is not attached.

[0022] In this embodiment, the front surface portion 11 and the rear surface portion 12 have the same shape. Therefore, the following mainly describes the configuration of the front surface portion 11, and the description of the configuration of the rear surface portion 12 can be appropriately applied to the description of the configuration of the front surface portion 11.

[0023] The front portion 11 will be described in detail below with reference to FIG. 4 in addition to FIGS. 1 to 3. FIG. 4 is a schematic diagram showing the inner surface of the front portion included in the gusseted main body. For reference, FIG. 4 also shows a valley fold line L1 of the side portion 13 and a valley fold line L2 of the side portion 14. As shown in FIGS. 1 and 4, the front portion 11 has a substantially rectangular shape, and the dimension of the front portion 11 in the first direction X is smaller than the dimension of the front portion 11 in the second direction Y. Thus, the sides 11a and 11b of the front portion 11 in the first direction X are short sides, and the sides 11c and 11d of the front portion 11 in the second direction Y are long sides. In one example, the lengths of the sides 11a and 11b are 80 mm or more and 150 mm or less, and the lengths of the sides 11c and 11d are 180 mm or more and 300 mm or less. The ratio of the lengths of sides 11a and 11b to the lengths of sides 11c and 11d (lengths of sides 11a and 11b:lengths of sides 11c and 11d) is, for example, 1:1 to 1:10, 1:2 to 1:4, etc. Each corner of the front surface portion 11 is rounded, but this is not limited to this. Side 11a is included in the top end 21 of the front surface portion 11. Side 11b is included in the bottom end 22 of the front surface portion 11. Sides 11c and 11d are included in the side end 23 of the front surface portion 11. As shown in Figures 2 and 3, the rear surface portion 12 has a top end 31 and a side end 33 similar to the top end 21 and the side end 23 of the front surface portion 11. In addition, the rear surface portion 12 has a bottom edge similar to the bottom end 22 of the front surface portion 11.

[0024] The top end 21 of the front surface portion 11 constitutes one end of the front surface portion 11 in the second direction Y. The top end 21 has a central portion 21a, a first portion 21b, and a second portion 21c. As shown in FIG. 3 , the central portion 21a overlaps the central portion 31a of the top end 31 of the rear surface portion 12 in the third direction Z and is in close contact with the spout 2. The first portion 21b is located between the valley fold lines L1 and L2 and closer to the pair of side portions 13 and 14 than the central portion 21a, and is in close contact with the first portion 31b of the top end 31 of the rear surface portion 12. The second portion 21c is farther from the central portion 21a than the valley fold lines L1 and L2 and is in close contact with the pair of side portions 13 and 14. The second portion 21c also overlaps the second portion 31c of the top end 31 of the rear surface portion 12 and the pair of side portions 13 and 14 in the third direction Z. The second portion 21c of the top end 31 of the rear portion 12 overlaps the pair of side portions 13, 14 and is in close contact with the pair of side portions 13, 14. In this embodiment, the valley fold lines L1, L2 correspond to the boundary between the first portion 21b and the second portion 21c and the boundary between the first portion 31b and the second portion 31c.

[0025] The bottom end 22 of the front portion 11 constitutes the other end of the front portion 11 in the second direction Y, and functions as part of the bottom portion 15 of the container body 1. A part of the bottom end 22 is in close contact with the bottom edge of the rear portion 12, and the other part of the bottom end 22 is in close contact with one of the pair of side portions 13, 14. From the viewpoint of the sealing performance of the bottom portion 15 of the container body 1, the width of the bottom end 22 in the second direction Y is, for example, 6 mm or more. From the viewpoint of the capacity of the spouted container 100, the width of the bottom end 22 in the second direction Y is, for example, 5 mm or less.

[0026] The side end portions 23 of the front surface portion 11 are portions that constitute both ends of the front surface portion 11 in the first direction X. The side end portions 23 are in close contact with the side end portions of the rear surface portion 12 or the pair of side portions 13, 14. The side end portions 23 have a first side end portion 23a that includes side 11c and a second side end portion 23b that includes side 11d. From the viewpoint of the sealing performance of the sides of the container body 1, the width of the first side end portion 23a and the width of the second side end portion 23b in the first direction X are, for example, 4 mm or more. From the viewpoint of the capacity of the spouted container 100, the width of the first side end portion 23a and the width of the second side end portion 23b in the first direction X are, for example, 3 mm or less.

[0027] As shown in FIG. 4, a first seal portion 24 and a second seal portion 25, indicated by diagonal lines, are provided on the inner surface 11e of the front surface portion 11. The first seal portion 24 and the second seal portion 25 are formed at different times. In one example, the first seal portion 24 is formed before the stopper 2 is attached to the container body 1, and the second seal portion 25 is formed after the first seal portion 24 is formed (for example, when the stopper 2 is attached to the container body 1). In another example, a part of the first seal portion 24 and the second seal portion 25 are formed first. Subsequently, after the container body 1 is filled with fluid from a portion of the container body 1 where the first seal portion 24 and the second seal portion 25 are not formed (for example, the unsealed portion of the bottom end 22), the entire first seal portion 24 is formed. Each of the first seal portion 24 and the second seal portion 25 is formed by heat sealing between the sealant layer constituting the inner surface 11e and the sealant layer constituting the inner surface of the rear surface portion 12 or the sealant layer constituting the inner surface of either of the pair of side portions 13, 14.

[0028] The first sealed portion 24 has a first region 24a overlapping the bottom end 22, a second region 24b overlapping the first side end portion 23a, and a third region 24c overlapping the second side end portion 23b. The first region 24a is a region where the inner surface 11e of the front portion 11 and the inner surface of the rear portion 12 are welded to each other and extends in the first direction X. The second region 24b is a region where the inner surface 11e and the inner surface of the side portion 13 are welded to each other and extends in the second direction Y. The third region 24c is a region where the inner surface 11e and the inner surface of the side portion 14 are welded to each other and extends in the second direction Y. The first sealed portion 24 also has a fourth region 24d provided around the corner between the first region 24a and the second region 24b, and a fifth region 24e provided around the corner between the first region 24a and the third region 24c. The fourth region 24d is a region where the inner surface 11e is welded to only the inner surface of the rear portion 12, or to the inner surfaces of the rear portion 12 and the side portions 13. The fifth region 24e is a region where the inner surface 11e is welded to only the inner surface of the rear portion 12, or to the inner surfaces of the rear portion 12 and the side portions 14. The width of the fourth region 24d in the first direction X and the width of the fifth region 24e in the first direction X each narrow as they approach the apex end 21, but are not limited to this. Each of the fourth region 24d and the fifth region 24e has a triangular shape in a front view, but are not limited to this. At least one of the fourth region 24d and the fifth region 24e may have an arc shape in a front view.

[0029] The second sealed portion 25 has a first region 25a overlapping the central portion 21a of the apical end 21, a second region 25b overlapping the first portion 21b of the apical end 21, and a third region 25c overlapping the second portion 21c of the apical end 21. The first region 25a is the region where the inner surface 11e of the front portion 11 is welded to the plug 2. The second region 25b is the region where the inner surface 11e and the inner surface of the rear portion 12 are welded to each other, and is located on either side of the first region 25a in the first direction X. The third region 25c is the region where the inner surface 11e is welded to the inner surface of the side portion 13 or the inner surface of the side portion 14. In this embodiment, the width of the first region 25a in the second direction Y, the width of the second region 25b in the second direction Y, and the width of the third region 25c in the second direction Y are all constant, but this is not limited to this.

[0030] The second sealed portion 25 further has a pair of fourth regions 25d located closer to the bottom end 22 than the third region 25c. The pair of fourth regions 25d are regions (first welded regions) where the inner surface 11e of the front surface 11 and the inner surface of the side portion 13 or the inner surface of the side portion 14 are welded to each other, and extend from the third region 25c overlapping the second portion 21c toward the bottom 15 to the side end 23 of the front surface 11. In other words, in one of the pair of fourth regions 25d, the inner surface 11e of the front surface 11 and the inner surface of the side portion 13 are welded to each other, and in the other of the pair of fourth regions 25d, the inner surface 11e of the front surface 11 and the inner surface of the side portion 14 are welded to each other. One of the pair of fourth regions 25d is located closer to the first side end portion 23a than the valley fold line L1 in the first direction X. The other of the pair of fourth regions 25d is located closer to the second side edge portion 23b in the first direction X than the valley fold line L2.

[0031] The width of the pair of fourth regions 25d in the first direction X becomes narrower toward the bottom 15. In this embodiment, the maximum value (maximum width) of the width of the pair of fourth regions 25d in the first direction X may be equal to or less than the distance between the first side end portion 23a and the valley fold line L1 in the first direction X. From the viewpoint of the pressure resistance of the container body 1, the maximum width may be, for example, equal to or more than half of the distance. Alternatively, from the viewpoint of the pressure resistance of the container body 1, the sum of the maximum width and the width of the first side end portion 23a may be greater than 20%, greater than 25%, or greater than 28% of the dimension of the container body 1 in the first direction X. From the viewpoint of the dischargeability of the contents of the container body 1, the sum of the maximum width and the width of the first side end portion 23a may be equal to or less than 35%, 32%, 30%, or 28% of the dimension of the container body 1 in the first direction X. In one example, the dimension of the pair of fourth regions 25d in the second direction Y in a front view is two to five times the maximum width of the fourth region 25d. From the viewpoint of the pressure resistance of the container body 1, the dimension may be more than 30%, more than 40%, more than 50%, or more than 55% of the dimension of the container body 1 in the second direction Y. From the viewpoint of the dischargeability of the contents of the container body 1, the dimension of the pair of fourth regions 25d in the second direction Y in a front view may be 75% or less, 70% or less, 65% or less, or 60% or less of the dimension of the container body 1 in the second direction Y.

[0032] In this embodiment, each of the pair of fourth regions 25d has a triangular shape in a front view. Therefore, in each of the pair of fourth regions 25d, the side S closest to the center of the container body 1 is a straight line extending from the first seal portion 24 toward the side edge 23. Note that, in a front view, at least one of the pair of fourth regions 25d may have an arc shape or the like. That is, the side S may be a curve. In this embodiment, the angle θ1 formed between the straight line overlapping the side S and the valley fold line L1 is 14° or more and 80° or less. In this embodiment, the angle θ1 corresponds to the angle formed between one of the pair of fourth regions 25d and the valley fold line L1 and the angle formed between one of the pair of fourth regions 25d and the valley fold line L1 in a front view.

[0033] As described above, the front surface portion 11 and the rear surface portion 12 have the same shape. Therefore, although not shown, the inner surface of the rear surface portion 12 is formed with another first seal portion, which corresponds to the first seal portion 24 of the front surface portion 11 and is formed before the stopper 2 is attached to the container body 1, and another second seal portion, which corresponds to the second seal portion 25 and is formed after the formation of the other first seal portion. To prevent the formation of a portion with weak seal strength, the first seal portion 24 and the other first seal portion have the same shape, and the second seal portion 25 and the other second seal portion have the same shape. Furthermore, the other first seal portion is formed when the first seal portion 24 is formed, and the other second seal portion is also formed when the second seal portion 25 is formed.

[0034] Although not shown, the above-mentioned separate first sealing portion includes a sealing area that is welded to the first region 24a provided on the front portion 11, a sealing area that overlaps the second region 24b in the third direction Z and is welded to the inner surface of the side portion 13, a sealing area that overlaps the third region 24c in the third direction Z and is welded to the inner surface of the side portion 14, a sealing area that overlaps the fourth region 24d in the third direction Z and is welded to at least the inner surface 11e of the front portion 11, and a sealing area that overlaps the fifth region 24e in the third direction Z and is welded to at least the inner surface 11e of the front portion 11.

[0035] The second separate sealed portion includes a sealed region provided in the central portion 31a of the top end 31 and welded to the plug 2, a sealed region provided in the first portion 31b of the top end 31 and welded to the first portion 21b of the top end 21, a sealed region provided in the second portion 31c of the top end 31 and welded to the inner surface of the side portion 13 or the inner surface of the side portion 14, and a sealed region (second welded portion) that overlaps the fourth region 25d in the third direction Z and is welded to the inner surface of the side portion 14. The second welded portion has the same shape as the fourth region 25d. Therefore, the second welded portion extends from the second portion 31c toward the bottom portion 15 to the side end 33 of the rear surface portion 12 in a front view. In one example, the width of the second welded portion in the first direction X becomes narrower toward the bottom 15, and the dimension of the second welded portion in the second direction Y is between two and five times the maximum value of the width. In addition, in one example, the angle formed between the second welded portion and the valley fold line L1 or the valley fold line L2 in a front view is approximately the same as the angle θ1.

[0036] Returning to FIG. 2 , the side portion 13 has a portion 13a located closer to the front portion 11 than the valley fold line L1 in the third direction Z, and a portion 13b located closer to the rear portion 12 than the valley fold line L1 in the third direction Z. The pair of side portions 13, 14 have the same shape. Thus, the side portion 14 has a portion corresponding to the portion 13a of the side portion 13 and a portion corresponding to the portion 13b of the side portion 13. In this embodiment, in each of the pair of side portions 13, 14, the portion overlapping the second portion 21c of the front portion 11 and the portion overlapping the second portion 31c of the rear portion 12 are joined to each other by a known bonding method. In one example, the above-mentioned portions are joined to each other by thermal welding, an adhesive, or the like. Thus, one ends of the pair of side portions 13, 14 in the second direction Y are joined to each other via a known adhesive or the like.

[0037] The stopper 2 is a part that connects the inside and outside of the container body 1 and is airtightly attached to the container body 1. The stopper 2 has a first cylindrical part 2a that is housed in the container body 1, a second cylindrical part 2b that communicates with the first cylindrical part 2a and is exposed from the container body 1, and a lid part 2c that is attached to the second cylindrical part 2b. The first cylindrical part 2a and the second cylindrical part 2b form the main body of the stopper 2. The first cylindrical part 2a is a part to which the first region 25a of the second seal part 25 and the separate second seal part are welded. In one example, the lid part 2c is a screw cap that is attached to the second cylindrical part 2b. The lid part 2c may be provided with a member (a tamper-evidence ring) or the like for determining whether the stopper 2 has been opened even once.

[0038] Fig. 5 is a diagram showing an example of how the spouted container according to this embodiment is used. As shown in Fig. 5, the spouted container 100 contains a nutritional supplement for tube feeding and is connected to a catheter 200 attached to a patient who has undergone endoscopic gastrostomy. To quickly supply the contents into the catheter 200, for example, a jig 300 for squeezing the spouted container 100 may be used. When the jig 300 is used, the pressure applied to the spouted container 100 is typically significantly greater than when the jig 300 is not used. Therefore, depending on how the spouted container 100 is used, pressure resistance sufficient to prevent damage to the container body 1 due to the use of the jig 300 may be required.

[0039] Next, with reference to Figures 6 and 7, the effects achieved by the spouted container 100 according to this embodiment will be described. Figure 6 is an enlarged view of a main part of a spouted container according to a reference example when it is expanded. Figure 7 is an enlarged view of a main part of a spouted container according to this embodiment when it is expanded. The spouted container 1000 according to the reference example shown in Figure 6 differs from the spouted container 100 according to this embodiment in the following respects. Specifically, in the spouted container 1000, the fourth region 25d (first welded portion) of the second seal portion 25 is not formed in the front surface portion 11, and the second welded portion is not formed in the rear surface portion 12. In addition, in the spouted container 1000, in each of the pair of side portions 13, 14, the portion overlapping the second portion 21c of the front surface portion 11 and the portion overlapping the second portion 31c of the rear surface portion 12 are not joined to each other.

[0040] As shown in Figure 6, when the spout-equipped container 1000 according to the reference example expands, the vicinity of the central portions 21a, 31a of the container body 1 also expands. As a result, the angle θ12 formed by the side edge 23 of the front portion 11 and the side edge 33 of the rear portion 12 becomes an obtuse angle in a side view. Due to the expansion, in the reference example, a tensile force for opening is applied to the vicinity of the spout 2 of the container body 1. This makes it easy for the bag to break at relatively weak sealed portions of the container body 1 (for example, sealed portions near the valley fold lines L1, L2, i.e., the boundary between the portion where the front portion 11 and the rear portion 12 are welded and the portion where the front portion 11 and the side portion 13 are welded).

[0041] In contrast, in the spouted container 100 according to the present embodiment, in each of the pair of side portions 13, 14, the portion overlapping the second portion 21c of the front portion 11 and the portion overlapping the second portion 31c of the rear portion 12 are joined to each other. Furthermore, a fourth region 25d, which is a first welded portion between the inner surface 11e of the front portion 11 and the inner surfaces of the pair of side portions 13, 14, extends from the second portion 21c toward the bottom 15 to the side edge 23 of the front portion 11, and the second welded portion between the inner surface of the rear portion 12 and the inner surfaces of the pair of side portions 13, 14 extends from the second portion 31c toward the bottom 15 to the side edge 33 of the rear portion 12. As a result, as shown in FIG. 7 , when the container body 1 expands due to pressure applied from the outside to the container body 1, expansion of the container body 1 near the central portions 21a, 31a and near the first portions 21b, 31b is suppressed. Therefore, the tensile force required for opening the container body 1 near the spout 2 is less likely to be applied. Therefore, the relatively weak seal portion of the container body 1 is less likely to break. In addition, the width of the first welded portion (fourth region 25d) in the first direction X and the width of the second welded portion in the first direction X each become narrower as they approach the bottom 15. This makes it less likely that the force generated by the expansion of the container body 1 will concentrate at a specific location. Therefore, the spout-equipped container 100 can prevent unintentional opening even if it is a gusset bag type.

[0042] In this embodiment, at least one of the fourth region 25d, which is the first welded portion, and the second welded portion may have a triangular shape in a front view, which effectively prevents the force generated by the expansion of the container body 1 from concentrating on a specific location.

[0043] In this embodiment, the dimension of fourth region 25d, which is the first welded portion, in second direction Y in front view may be from two to five times the maximum width of the first welded portion, and / or the dimension of the second welded portion in second direction Y may be from two to five times the maximum width of the second welded portion. In this case, it becomes difficult to effectively apply a tensile force for opening the container body 1 near stopper 2.

[0044] 6, in the present embodiment, when the container body 1 is expanded, the angle θ2 formed between the side edge 23 of the front surface 11 and the side edge 33 of the rear surface 12 is an acute angle in a side view. Therefore, even when the container body 1 is expanded, it is difficult to effectively apply a tensile force for opening the container body 1 near the spout 2.

[0045] Next, spouted containers according to modified examples will be described with reference to Figures 8 and 9. In the description of each modified example, descriptions that overlap with the above-described embodiment will be omitted, and only differences will be described. In other words, to the extent technically possible, the descriptions of the above-described embodiment may be used appropriately for each modified example.

[0046] Fig. 8 is a schematic diagram showing the inner surface of the front surface included in the gusseted body of the spouted container according to the first modification. As shown in Fig. 8, a pair of fourth regions 25e (first welded portions) included in the second seal portion 25A provided on the front surface portion 11A extend from the first portion 21b and the second portion 21c of the front surface portion 11A toward the bottom portion 15. In the first direction X, a portion of one of the pair of fourth regions 25e is located closer to the central portion 21a than the valley fold line L1. In the first direction X, a portion of the other of the pair of fourth regions 25e is located closer to the central portion 21a than the valley fold line L2. The portion is aligned with the first portion 21b in the second direction Y, but is not aligned with the central portion 21a in the second direction Y. The angle θ3 formed between one of the fourth regions 25e and the valley fold line L1 is approximately the same as the angle θ1 in the above embodiment.

[0047] In the first modified example, the front surface portion 11A and the rear surface portion have the same shape. Therefore, the second welded portion provided on the rear surface portion in the first modified example extends from the first and second portions of the rear surface portion toward the bottom 15. Therefore, a part of the second welded portion is located closer to the center of the rear surface portion than the valley fold lines L1 and L2.

[0048] The first modified example described above also achieves the same effects as the above embodiment. In addition, since the portion of the gusset body near the spout 2 that is easy to open can be effectively reinforced, tearing of the relatively fragile sealed portion of the gusset body can be effectively prevented.

[0049] Fig. 9 is a schematic diagram showing the inner surface of the front surface included in the gusseted body of the spouted container according to the second modification. As shown in Fig. 9, a pair of fourth regions 25f (first welded regions) included in the second seal portion 25B provided in the front surface 11B extend from the first portion 21b and the second portion 21c of the front surface 11B toward the bottom 15. In addition, a portion of each fourth region 25f is spaced apart from the side edge 23 of the front surface 11B. Therefore, an unwelded region exists in the area of ​​the front surface 11B surrounded by the side edge 23, the first seal portion 24, and the second seal portion 25B. The angle θ4 formed between one of the fourth regions 25f and the valley fold line L1 may be approximately the same as the angle θ1 in the above embodiment.

[0050] In the second modified example, the front surface portion 11B and the rear surface portion have the same shape. Therefore, the second welded portion provided on the rear surface portion in the second modified example extends from the first and second portions of the rear surface portion toward the bottom portion 15. In addition, a part of the second welded portion is spaced apart from the side edge of the rear surface portion.

[0051] In the second modified example, the pair of fourth regions 25f are formed simultaneously with the first region 25a, etc., but this is not limiting. In one example, the pair of fourth regions 25f may be formed after the first region 25a, the second region 25b, and the third region 25c are formed.

[0052] The second modified example described above also achieves the same effects as those of the above-described embodiment. The effects achieved by the second modified example will now be described in detail. First, a spouted container 1000 according to the reference example shown in the above-described embodiment and a spouted container according to the second modified example were prepared. Each spouted container had the same dimensions, and the contents of each spouted container were water. Furthermore, no sterilization treatment was performed on the spouted containers. Next, the pressure resistance of each spouted container was measured using a Tensilon universal testing machine (RTG-1225, manufactured by A&D Co., Ltd.). Here, the compression plate had dimensions of 90 mm square, and the compression speed was 200 mm / min. The lower half of the spouted container was pressed flat. The pressure resistance of the spouted container according to the second modified example is at least approximately 10% to 30% higher than that of the spouted container 1000. Therefore, it can be said that the second modified example, like the above-described embodiment, can also prevent unintentional opening. In this specification, "pressure resistance strength" refers to the strength that the joint between the spout and the pouch can withstand without breaking due to the pressure load on the area around the spout that occurs when continuous pressure is applied to the bag during administration, assuming actual use.

[0053] The spouted container according to one aspect of the present invention is as described in the following [1] to [8], for example, and has been described in detail based on the above embodiment. [1] a gusseted body having a front portion, a rear portion, a pair of valley-folded side portions, and a bottom portion, the body being capable of containing a fluid; a plug attached to the gusseted body; A container with a spout comprising: Each of the top end portion of the front surface portion and the top end portion of the rear surface portion has a central portion in contact with the plug, a first portion located between the valley fold lines of the pair of side portions, and a second portion located farther from the central portion than the valley fold lines and welded to the pair of side portions, In each of the pair of side portions, a portion overlapping the second portion of the front portion and a portion overlapping the second portion of the rear portion are joined to each other, a first welded portion between the inner surface of the front portion and the inner surfaces of the pair of side portions extends from the second portion toward the bottom portion to a side end portion of the front portion; a second welded portion between the inner surface of the rear surface portion and the inner surfaces of the pair of side portions extends from the second portion toward the bottom portion to a side end portion of the rear surface portion; a width of the first welded portion in a first direction in which the pair of side portions face each other, and a width of the second welded portion in the first direction each become narrower toward the bottom; Container with stopper. [2] The spouted container according to [1], wherein at least one of the first welded portion and the second welded portion has a triangular shape when viewed from the front. [3] A container with a stopper according to [1] or [2], wherein, when viewed from the front, the dimension of the first welded portion in a second direction perpendicular to the first direction is between two and five times the maximum width of the first welded portion, and / or the dimension of the second welded portion in the second direction is between two and five times the maximum width of the second welded portion. [4] A container with a spout described in any one of [1] to [3], wherein the first welded portion extends from the first and second portions of the front portion toward the bottom portion, and / or the second welded portion extends from the first and second portions of the rear portion toward the bottom portion. [5] A container with a spout described in any one of [1] to [4], wherein, in the first direction, a portion of the first welded portion is located closer to the central portion than the valley fold line, and / or a portion of the second welded portion is located closer to the central portion than the valley fold line. [6] A container with a spout according to any one of [1] to [5], wherein, when viewed from the front, the angle formed between the first welded portion and the valley fold line is 14° or more and 80° or less, and / or the angle formed between the second welded portion and the valley fold line is 14° or more and 80° or less. [7] A container with a stopper described in any one of [1] to [6], wherein when the gusseted body is inflated in a side view, the angle formed by the side end of the front portion and the side end of the rear portion is an acute angle. [8] A container with a spout described in any one of [1] to [7], wherein a portion of the first welded portion is spaced apart from the side edge of the front portion, and / or a portion of the second welded portion is spaced apart from the side edge of the rear portion.

[0054] However, one aspect of the present disclosure is not limited to the above embodiment, the above modified examples, and the above [1] to [8]. One aspect of the present disclosure is possible to further modify without departing from the gist thereof. For example, the above embodiment and the above modified example may be combined as appropriate. In this case, the first welded portion extends from the second portion of the front surface portion toward the bottom portion and is spaced apart from the side edge of the front surface portion. Similarly, the second welded portion extends from the second portion of the rear surface portion toward the bottom portion and is spaced apart from the side edge of the rear surface portion. [Explanation of symbols]

[0055] 1...Container body (main body with gusset), 1a...Outer frame part, 1b...Inner part, 2...Spout plug, 2a...First cylinder part, 2b...Second cylinder part, 2c...Lid part, 11, 11A, 11B...Front part, 11e...Inner surface, 12...Rear part, 13...Side part, 13a...Part, 1 3b...part, 14...side part, 15...bottom part, 21...top end part, 21a...center part, 21b...first part, 21c...second part, 22...bottom end part, 23...side end part, 23a...first side end part, 23b...second side end part, 24...first seal part, 24a ...First area, 24b...Second area, 24c...Third area, 24d...Fourth area, 24e...Fifth area, 25, 25A, 25B...Second seal part, 25a...First area, 25b...Second area, 25c...Third area, 25d, 25e, 25f...Fourth area Region (first welding part), 31... Top end, 31a... Center part, 31b... First part, 31c... Second part, 33... Side end, 100... Container with spout, 200... Catheter, 300... Jig, L1, L2... Valley fold line, S... Side, θ1~θ4... Angle.

Claims

1. a gusseted body having a front portion, a rear portion, a pair of valley-folded side portions, and a bottom portion, the body being capable of containing a fluid; a plug attached to the gusseted body; A container with a spout comprising: Each of the top end of the front surface portion and the top end of the rear surface portion has a central portion in contact with the plug, a first portion located between the valley fold lines of the pair of side portions, and a second portion located farther from the central portion than the valley fold lines and welded to the pair of side portions, In each of the pair of side portions, a portion overlapping the second portion of the front portion and a portion overlapping the second portion of the rear portion are joined to each other, a first welded portion between the inner surface of the front portion and the inner surfaces of the pair of side portions extends from the second portion toward the bottom portion to a side end portion of the front portion; a second welded portion between the inner surface of the rear surface portion and the inner surfaces of the pair of side portions extends from the second portion toward the bottom portion to a side end portion of the rear surface portion; a width of the first welded portion in a first direction in which the pair of side portions face each other, and a width of the second welded portion in the first direction each become narrower toward the bottom; Container with stopper.

2. 2. The spouted container according to claim 1, wherein at least one of the first welded portion and the second welded portion has a triangular shape in a front view.

3. 3. The container with a spout according to claim 1, wherein, in a front view, the dimension of the first welded portion in a second direction perpendicular to the first direction is between two and five times the maximum width of the first welded portion, and / or the dimension of the second welded portion in the second direction is between two and five times the maximum width of the second welded portion.

4. 3. A container with a spout according to claim 1, wherein the first welded portion extends from the first and second portions of the front surface toward the bottom, and / or the second welded portion extends from the first and second portions of the rear surface toward the bottom.

5. 3. The container with a spout according to claim 1, wherein, in the first direction, a portion of the first welded portion is located closer to the central portion than the valley fold line, and / or a portion of the second welded portion is located closer to the central portion than the valley fold line.

6. 3. The spouted container according to claim 1, wherein, in a front view, an angle formed between the first welded portion and the valley fold line is 14° or more and 80° or less, and / or an angle formed between the second welded portion and the valley fold line is 14° or more and 80° or less.

7. 3. The spouted container according to claim 1, wherein when the gusseted body is inflated, the angle formed between the side edge of the front portion and the side edge of the rear portion is an acute angle in a side view.

8. 3. A container with a spout according to claim 1, wherein a portion of the first welded portion is spaced apart from the side edge of the front portion, and / or a portion of the second welded portion is spaced apart from the side edge of the rear portion.

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