Standing pouch

Abstract

To provide a constitution which has durability, which does not deviate from the center of gravity, and in which the size of a pouch does not increase, in the case where a grip is provided at the pouch.SOLUTION: A self-supporting type pouch includes a surface sheet, a rear sheet, and a bottom sheet. The bottom sheet is welded to the surface sheet and the rear sheet. Mounting holes are formed respectively at a surface side welded part in which the bottom sheet and a lower part of the surface sheet are welded, and at a rear side welded part in which the bottom sheet and a lower part of the rear sheet are welded. A grip is mounted in the mounting holes.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a self-standing pouch that can be stored in a self-standing state, for example. [Background technology]

[0002] For example, in the fields of pesticides and herbicides, liquid agents that can be sprayed directly without diluting with water are sold in containers filled with the agent. Containers filled with this type of liquid agent can be configured to spray the liquid agent by connecting a sprayer or the like to the container, or the user can tilt the container themselves to spray the liquid agent.

[0003] For example, Patent Document 1 discloses a container filled with a liquid agent and an electric sprayer connected to the container. The container is formed with a handle for a user to hold. By holding the container handle with one hand and the sprayer with the other, the user can spray the liquid agent while moving around appropriately. Furthermore, Patent Document 2 discloses a container filled with a liquid or the like, and describes how a user holds the handle and tilts the container to spray the contents.

[0004] Conventionally, this type of container has been made of rigid plastic, but in recent years, there has been a demand to reduce waste plastic.

[0005] In this regard, there are known prior art technologies that use containers with reduced amounts of plastic, specifically, bags (so-called pouches) made from films or sheets, as spray containers (for example, Patent Documents 3 to 5). When using a pouch as a spray container in this way, it is necessary to provide the pouch with a handle that can be grasped by the user. In addition to Patent Documents 3 to 5, Patent Document 6 and the like are known as prior art technologies that provide a handle on a pouch. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] International Publication No. 2015 / 038744 Pamphlet [Patent Document 2] Japanese Patent Application Publication No. 2018-62353 [Patent Document 3] Utility Model Registration No. 3209948 [Patent Document 4] Utility Model Registration No. 3089648 [Patent Document 5] Japanese Patent Application Laid-Open No. 2006-61058 [Patent Document 6] Japanese Patent Application Laid-Open No. 2015-63332 Summary of the Invention [Problem to be solved by the invention]

[0007] However, when providing a handle on a pouch as in Patent Documents 3 to 6, the width of the pouch needs to be made large to ensure a portion for providing the handle, which poses a problem of making the pouch large.

[0008] Furthermore, when a pouch with a handle is used as a spray container, the user will have to hold the handle for long periods of time while it contains a heavy liquid agent, which raises concerns about the durability of the handle.

[0009] In this regard, for example, Patent Document 3 discloses a configuration in which part of the cutting line for forming the handle extends to the bottom seal portion, thereby increasing strength. However, in this case, as shown in Figure 7 of Patent Document 3, the handle portion is positioned to one side in the left-right direction of the drawing during spraying. As a result, the center of gravity of the handle and the pouch is not located on a vertical line, and when the pouch is held as shown in Figure 7 of Patent Document 3 with a heavy liquid medication inside, the weight of the liquid medication inside the pouch can easily cause the pouch to bend, making it difficult to determine the spray direction and making spraying difficult.

[0010] The present invention has been made in view of the above points, and aims to provide a handle for a pouch that is durable, does not deviate from the center of gravity of the pouch, and can also prevent the pouch from becoming too large. [Means for solving the problem]

[0011] To achieve the above object, a self-standing pouch according to one embodiment of the present disclosure has a top sheet, a back sheet, and a bottom sheet, and the bottom sheet is welded to the top sheet and the back sheet. Attachment holes are formed in a top-side welded portion where the bottom sheet and the lower part of the top sheet are welded, and in a back-side welded portion where the bottom sheet and the lower part of the back sheet are welded. Handles can be attached to the attachment holes.

[0012] That is, the bottom gusset is formed by welding the bottom sheet, top sheet, and back sheet that make up the self-standing pouch, and this portion is as thick as multiple sheets, making it a strong portion. By providing a handle attachment hole in this strong portion, sufficient handle attachment strength can be ensured, resulting in high durability. Furthermore, because the attachment hole is simply provided in the bottom of the self-standing pouch, the self-standing pouch does not become larger than those in Patent Documents 3 to 6. Furthermore, because the handle is attached to the bottom of the self-standing pouch, the center of gravity of the handle and the pouch are less likely to shift when the contents are poured out of the pouch, as in Patent Document 3, and the pouch is less likely to bend easily.

[0013] In another embodiment of the present disclosure, the vertical dimensions of the front welded portion and the back welded portion are set so that the portions corresponding to both sides in the width direction of the self-standing pouch are longer than the portions corresponding to the center in the width direction of the self-standing pouch. The mounting holes can be formed on both sides in the width direction of the front welded portion and on both sides in the width direction of the back welded portion.

[0014] That is, in order to ensure the strength of the corners of the pouch and their vicinity, the vertical dimensions of the front and back welds of the self-standing pouch are longer near the corners (portions corresponding to both sides of the width of the self-standing pouch) than away from the corners (portions corresponding to the center of the width of the self-standing pouch). By forming the mounting holes on both sides of the width where the vertical dimensions are longer, there is no need to set aside a special area on the pouch for forming the mounting holes; instead, the mounting holes can be formed by effectively utilizing part of the existing area. This prevents the pouch from becoming too large.

[0015] In another embodiment of the present disclosure, a connection portion for a flexible hose connected to a sprayer is provided at the upper welded portion where the upper portion of the top sheet and the upper portion of the back sheet are welded.

[0016] That is, when a sprayer is used to spray a liquid, a dip tube is usually required to suck up the liquid to be sprayed. In this regard, in the case of the self-standing pouch of this embodiment, the handle is attached to the bottom, so the connection part is located at the bottom when spraying. Therefore, the liquid contained in the self-standing pouch naturally flows down to the connection part due to gravity, so a dip tube to suck up the liquid inside the pouch is not required.

[0017] In another embodiment of the present disclosure, a dispersing member having a dispersing port facing obliquely upward is provided at an upper welded portion where an upper portion of the top sheet and an upper portion of the back sheet are welded.

[0018] That is, when the handle is attached to the self-standing pouch and held, the self-standing pouch is turned upside down, with the spray nozzle facing diagonally downwards. This allows the user to spray liquid diagonally forward, making it easy to spray herbicides, for example.

[0019] In another aspect of the present disclosure, when viewed from the front side, the mounting hole formed in the front side welded portion and the mounting hole formed in the back side welded portion overlap each other.

[0020] With this configuration, when attaching the handle, the mounting hole formed in the front welded portion and the mounting hole formed in the back welded portion are in an overlapping position, making it easy to attach the handle to both mounting holes. [Effects of the Invention]

[0021] As explained above, when a handle is provided on a pouch, it is possible to avoid the pouch becoming larger, and the durability of the part where the handle is attached can be increased. Moreover, when the contents are spilled, the center of gravity of the handle and the pouch is less likely to become misaligned, making it easier to spill the contents. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a diagram showing a liquid spraying device provided with a bag body according to an embodiment of the present invention; [Figure 2] FIG. 2 is a front view of a bag containing a liquid, as viewed from the front side. [Figure 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2. [Figure 5] 10A and 10B are diagrams illustrating how to connect the bag body to the hose, and the hose to the electric sprayer. [Figure 6] FIG. 10 is a front view showing the bag body with the handle attached when in use. [Figure 7] FIG. 2 is a front view of the bag body to which the scattering member is attached. [Figure 8] FIG. 10 is an explanatory diagram showing the liquid spraying device in use. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the present invention, its applications, or its uses.

[0024] FIG. 1 shows a liquid spraying device A equipped with a bag 1 according to an embodiment of the present invention. The liquid spraying device A includes the bag 1 for containing the liquid, an electric sprayer 80 capable of continuously spraying the liquid, and a flexible hose 70 connecting the bag 1 and the electric sprayer 80. As shown in FIG. 2 and other figures, the bag 1 is a so-called pouch. FIG. 2 is a front view of the bag 1, showing the bag 1 from the front side. Examples of liquids contained in the bag 1 include herbicides, pesticides, fertilizers, water, disinfectants, fungicides, mildewcides, detergents, insecticides (pesticides), pest repellents, paints, lubricants, and solvents, but are not limited to these. Various types of sprayable liquids may also be used. Furthermore, the liquid contained in the bag 1 may be one of the above-mentioned examples, or a mixture of any two of them.

[0025] The internal volume of the bag 1 can be set, for example, in the range of 100 ml to 5000 ml. As will be described later, since the bag 1 is to be held by the user, the internal volume can be set so that it is, for example, 5 kg or less when filled with liquid, or, taking into account long-term use, the internal volume can also be set so that it is 1 kg or less when filled with liquid. In consideration of stability during use, the bag 1 is preferably long in the vertical direction, but this is not a limitation, and the width dimension may be longer than the vertical dimension.

[0026] As shown in Figures 2 and 3, the bag 1 has a top sheet 10, a back sheet 11, a bottom sheet 12, and an outlet-forming member 14. In this way, the bag 1 is constructed by combining multiple sheets 10-12, and the bag 1 contains liquid B. This reduces the amount of plastic used compared to conventional examples in which a rigid plastic container is used as a spray container. The top sheet 10, the back sheet 11, and the bottom sheet 12 are made of, for example, flexible resin sheets, and may be made of, for example, a single layer of film made of nylon, polyethylene terephthalate (PET), polypropylene, polyethylene, etc., or may have a multi-layer structure in which any two or more of these films are laminated together. The top sheet 10, the back sheet 11, and the bottom sheet 12 may also be sheets having a layer made of, for example, aluminum foil. In this case, the sheets may have a multi-layer structure in which aluminum foil is laminated between a top layer and a back layer made of resin. Alternatively, a sheet with the desired properties, thickness, and strength may be obtained by combining a metal vapor deposition layer, various resin layers, adhesive layers, etc., and the obtained sheet may be used to form the top sheet 10, back sheet 11, and bottom sheet 12. Since the top sheet 10, back sheet 11, and bottom sheet 12 have heat-sealing properties as described below, for example, a structure in which a base material layer and a thermoplastic resin layer are laminated can be used. The base material layer and the thermoplastic resin layer can be laminated and integrated by, for example, melt extrusion or dry lamination.

[0027] The thickness of the top sheet 10, back sheet 11, and bottom sheet 12 can be set to any thickness, and can be set to a thickness that will not stretch even when stored for a long period of time while containing liquid, and will not tear even when subjected to a slight impact. Specifically, the thickness of the top sheet 10, back sheet 11, and bottom sheet 12 can be, for example, 50 μm or more, or 100 μm or more, and the upper limit of the thickness of the top sheet 10, back sheet 11, and bottom sheet 12 can be 500 μm or less. The top sheet 10, back sheet 11, and bottom sheet 12 may all be made of the same sheet, or different sheets may be combined depending on the location.

[0028] The top sheet 10, back sheet 11, and bottom sheet 12 have heat-sealing properties. Heat-sealing properties are achieved by, for example, stacking the top sheet 10 and back sheet 11 in the thickness direction, tightly adhering them together, heating them to a temperature above the melting point of the resin at the contact surface, and then lowering the temperature to the hardening point of the resin, thereby welding the top sheet 10 and back sheet 11 together and preventing the inflow or outflow of gas or liquid. In other words, the top sheet 10, back sheet 11, and bottom sheet 12 can be joined together airtightly or liquidtightly by a heat-sealing method. The various conditions and heat-sealing devices used for heat-sealing are well known.

[0029] Figures 2 and 3 show the bag 1 in its unused position when stored or transported to a store, etc., and this position is referred to as the unused position. Meanwhile, Figures 6 and 8 show the position when a liquid is being sprayed by the electric sprayer 80, with the bag 1 in its unused position turned upside down (top and bottom). This position is referred to as the used position. The shape of the bottom of the bag 1 in its unused position is designed so that it will remain upright without tipping over when placed on a horizontal surface, for example. Such a bag 1 can be called a freestanding pouch or a standing pouch. The bag 1 can also be called a pouch, a storage bag, a bag-like container, etc. Because the top sheet 10, the back sheet 11, and the bottom sheet 12 are made of flexible resin sheets, the bag 1 can freely change shape, but because each of the sheets 10-12 is almost inelastic, the bag 1 does not stretch or deform even when filled with liquid.

[0030] As shown in Figures 2 and 3, when the bag body 1 is in the unused position, the outlet-forming member 14 is positioned at the top of the bag body 1. The top sheet 10 is a member that forms the front side (front surface) of the bag body 1, and is set to have a length in the up-down direction that is longer than the length in the width direction (left-right direction in Figures 2 and 3). The back sheet 11 is a member that forms the back side (rear surface) of the bag body 1, and has a shape similar to that of the top sheet 10. The front and rear surfaces are defined merely for the sake of convenience of explanation, and the side shown in Figure 2 may be the rear surface. The front surface may also be called the front surface, and the rear surface may also be called the rear surface.

[0031] As shown in Fig. 2, the bag 1 has a top seal portion 20, a left seal portion 21, a right seal portion 22, a front bottom seal portion 23, and a back bottom seal portion 24 (shown in Figs. 3 and 4). The top seal portion 20, the left seal portion 21, and the right seal portion 22 are welded portions between the top sheet 10 and the back sheet 11. The top bottom seal portion 23 is a top weld portion where the top sheet 10 and the bottom sheet 12 are welded, and the back bottom seal portion 24 is a back weld portion where the back sheet 11 and the bottom sheet 12 are welded.

[0032] That is, the upper part of the top sheet 10 and the upper part of the back sheet 11 are welded together by heat sealing to form an upper seal part (upper weld part) 20. The left side of the top sheet 10 and the left side of the back sheet 11 are also welded together by heat sealing to form a left side seal part (left side weld part) 21. The right side of the top sheet 10 and the right side of the back sheet 11 are also welded together by heat sealing to form a right side seal part (right side weld part) 22. The vertical dimension of the upper seal part 20, the horizontal dimension of the left side seal part 21, and the horizontal dimension of the right side seal part 22 can be, for example, about 5 mm.

[0033] 3, the bottom sheet 12 is disposed so as to extend in the depth direction of the bag 1 when liquid B is contained therein. The front portion 12a of the bottom sheet 12 is folded downward, and the front portion 12a of the bottom sheet 12 and the lower portion of the top sheet 10 are welded together by a heat sealing method to form a front bottom seal portion 23. The back portion 12b of the bottom sheet 12 is also folded downward, and the back portion 12b of the bottom sheet 12 and the lower portion of the back sheet 11 are welded together by a heat sealing method to form a back bottom seal portion 24.

[0034] The portion of the bottom sheet 12 between the front portion 12a and the back portion 12b extends in the depth direction of the bag body 1, so that the depth dimension of the bottom of the bag body 1 is longer than the depth dimension of the upper portion. This allows the bag body 1 to stand stably when filled with liquid. Furthermore, because the left side of the top sheet 10 and the left side of the back sheet 11 are welded to each other, the depth dimension of the bottom sheet 12 becomes shorter as it approaches the left end of the bag body 1. Similarly, because the right side of the top sheet 10 and the right side of the back sheet 11 are welded to each other, the depth dimension of the bottom sheet 12 becomes shorter as it approaches the right end of the bag body 1.

[0035] As shown in FIG. 2 , the vertical dimension of the front bottom seal portion 23 is shortest at the center and increases toward the left and right. In other words, the vertical dimension of the front bottom seal portion 23 is longer at the widthwise opposite ends of the bag 1 than at the widthwise center. Therefore, the left and right sides of the front bottom seal portion 23, which are the welded portions between the lower portion of the topsheet 10 and the front portion 12a of the bottom sheet 12, are designated as expanded front seal portions 23a. The vertical dimension of the expanded front seal portion 23a can be, for example, 10 mm or more, or 20 mm or more. The vertical dimension of the portion of the front bottom seal portion 23 other than the expanded front seal portion 23a can be, for example, less than 10 mm or 5 mm or less, and may be the same as the vertical dimension of the top seal portion 20.

[0036] Similarly, the vertical dimension of the back bottom seal 24 is shortest at the center in the left-right direction and is set to increase toward the left and right. Therefore, the left and right sides of the back bottom seal 24, which is the welding portion between the lower part of the back sheet 11 and the back part 12b of the bottom sheet 12, are respectively made into extended back seals 24a (shown in Figure 4).

[0037] The provision of the expanded front seal portion 23a and the expanded back seal portion 24a improves the strength of the lower corners of the bag 1. This prevents the bag 1 from bursting when the internal pressure suddenly increases, for example, when the sealed bag 1 is dropped. In essence, the expanded front seal portion 23a and the expanded back seal portion 24a are reinforcing portions, which may be referred to as bottom gussets, for example. The expanded front seal portion 23a and the expanded back seal portion 24a may be provided as needed. When storing liquid B inside the bag 1, the left side seal portion 21, the right side seal portion 22, the front bottom seal portion 23, and the back bottom seal portion 24 are formed, leaving only the top open. Liquid B is then stored from above, and the top seal portion 20 is then formed to seal the bag.

[0038] As shown in FIG. 2, the left side of the upper portion of the bag body 1 is cut out at an angle. Because the left side of the upper portion of the bag body 1 is cut out at an angle, the left side of the upper portion of the bag body 1 forms an inclined portion 10a that extends downward as it approaches the left end. An outlet-forming member 14 is provided on the inclined portion 10a. The outlet-forming member 14 is a resin molded body obtained by molding and solidifying a synthetic resin. Specifically, the outlet-forming member 14 is made of a resin material that is welded to, for example, the top sheet 10 and the back sheet 11, and has a base portion 14a and a tubular portion 14b that protrudes from the base portion 14a to the outside of the bag body 1. The base portion 14a is formed in a cylindrical shape and is disposed between the top sheet 10 and the back sheet 11. The outer peripheral surface of the base portion 14a is welded to both sheets 10, 11, thereby sealing the gap between the outer peripheral surface of the base portion 14a and both sheets 10, 11 and fixing the base portion 14a to both sheets 10, 11. A passage formed inside the base portion 14a communicates with the interior of the bag body 1. Furthermore, the passage formed inside the base portion 14a and the interior of the cylindrical portion 14b communicate with each other.

[0039] The axis of the cylindrical portion 14b is inclined with respect to the vertical line, and the inclination angle is set to, for example, 30° or more, or 40° or more. The inclination angle of the axis of the cylindrical portion 14b with respect to the vertical line is set to, for example, 80° or less, or 70° or less. The axis of the cylindrical portion 14b may extend in the vertical direction.

[0040] As shown in FIG. 5, an outlet 14c through which the liquid contained in the bag body 1 flows out is formed on the tip surface of the protruding direction of the cylindrical portion 14b. A spirally extending screw thread 14d is formed on the outer peripheral surface of the cylindrical portion 14b. As shown in FIG. 2, a cap 15 is attached to the cylindrical portion 14b when not in use. A thread groove (not shown) is formed on the inner peripheral surface of the cap 15, and the thread groove is threadedly engaged with the screw thread 14d of the cylindrical portion 14b to tighten the cap 15, thereby closing the outlet 14c. On the other hand, before use, the outlet 14c can be opened by loosening and removing the cap 15. The cap 15 may be configured to close the outlet 14c by being press-fitted into the outlet 14c.

[0041] Because the tubular portion 14b is provided at the top of the bag body 1, the outlet 14c is provided on the opposite side of the bottom sheet 12 in the vertical direction. Furthermore, because the tubular portion 14b protrudes upward, the outlet 14c, which opens at the tip end surface of the tubular portion 14b in the protruding direction, faces upward. In particular, in this embodiment, the tubular portion 14b protrudes diagonally upward to the left, so the outlet 14c also faces diagonally upward to the left. If the tubular portion 14b protrudes vertically upward, the outlet 14c also faces vertically upward. Furthermore, the tubular portion 14b may protrude diagonally upward to the right, in which case the outlet 14c also faces diagonally upward to the right. In other words, the outlet 14c may face directly upward or diagonally upward. Furthermore, the outlet 14c may be located on the right side of the bag body 1 or in the center in the horizontal direction. The inclined portion 10a may be provided on the right side, or the inclined portion 10a may be omitted.

[0042] (Handle structure) In this embodiment, a handle 60 is detachably attached to the bottom of the bag 1. The handle 60 is held by the user during use and can also be called a grip. That is, as shown in FIG. 2, mounting holes 23b for mounting the handles 60 are formed on both the left and right sides of the bag 1. The left mounting hole 23b is formed to penetrate the left expanded front seal portion 23a in the thickness direction. The right mounting hole 23b is formed to penetrate the right expanded front seal portion 23a in the thickness direction. The shape of the mounting holes 23b is not particularly limited, but can be, for example, circular.

[0043] Similar to the front side, mounting holes 24b for attaching handles 60 are formed on both the left and right sides of the bag body 1 on the back side. The left mounting hole 24b is formed to penetrate the left rear-side expanded seal portion 24a in the thickness direction. The right mounting hole 24b is formed to penetrate the right rear-side expanded seal portion 24a in the thickness direction. As shown in FIG. 4, the front-side mounting hole 23b and the rear-side mounting hole 24b are at the same height and are positioned at the same left-right direction. Therefore, when the bag body 1 is viewed from the front or rear side, the front-side mounting hole 23b and the rear-side mounting hole 24b are positioned so as to overlap. Note that the front-side mounting hole 23b and the rear-side mounting hole 24b may overlap completely or partially.

[0044] 6, the handle 60 has a first attachment portion 60a that is attached to the attachment holes 23b, 24b formed on the left side (one side in the width direction) of the bag body 1, a second attachment portion 60b that is attached to the attachment holes 23b, 24b formed on the right side (the other side in the width direction) of the bag body 1, and a main body portion 60c that extends from the first attachment portion 60a to the second attachment portion 60b. The handle 60 can be made of a flexible resin material, for example, and a resin material that is as flexible as the sheets 10-12 or harder than the sheets 10-12 can be used. The handle 60 may be made of the same material as the sheets 10-12.

[0045] Although not shown, the first attachment portion 60a includes, for example, a pin-shaped portion that is inserted into the attachment holes 23b, 24b from the front side of the bag body 1, and a retaining portion that is fixed to the tip of the pin-shaped portion and prevents the pin-shaped portion from coming out of the attachment holes 23b, 24b. The first attachment portion 60a may also be configured as a hook or the like that can be hooked onto the attachment holes 23b, 24b. In short, the first attachment portion 60a may have a structure that can be locked or engaged with the attachment holes 23b, 24b to prevent it from coming out. The second attachment portion 60b can be configured in a similar manner.

[0046] When the description is based on the assumption that the bag is not in use, the main body 60c of the handle 60 is curved in a direction away from the lower part of the bag 1. The width of the longitudinal middle part of the main body 60c may be formed wider than the longitudinal end parts. This reduces the load when the handle 60 is held by hand. The length of the handle 60 can be set arbitrarily, but it is preferable to set it so that a part of the bag 1 does not come into contact with the ground or the like when the hand holding the handle 60 is naturally lowered.

[0047] The handle 60 may be, for example, glued or welded. The portion that will become the handle 60 may be integrally formed with at least one of the top sheet 10, the back sheet 11, and the bottom sheet 12. That is, a ring-shaped portion that can be inserted with a finger can be integrally formed with at least one of the top sheet 10, the back sheet 11, and the bottom sheet 12, and this can be used as a handle. The handle 60 may also be made of, for example, a string-like member, and in this case, both ends of the string-like member may be tied to the mounting holes 23b and 24b, respectively.

[0048] When in the in-use position, the left-right center of the handle 60 and the left-right center of the bag body 1 are located on the same vertical line. Since the center of gravity of the bag body 1 when it contains liquid is at or near the left-right center, the center of the handle 60 and the center of gravity of the bag body 1 are approximately aligned in the left-right direction. This makes it difficult for the bag body 1 to deform easily.

[0049] As shown in Fig. 7, a scattering member 30 may be provided in the upper seal portion 20 of the bag body 1. The scattering member 30 is detachably attached to the tubular portion 14b of the outlet-forming member 14. Specifically, the scattering member 30 has a connecting tubular portion 31 formed to surround the tubular portion 14b, and a thread groove (not shown) is formed on the inner peripheral surface of the connecting tubular portion 31. The thread 14d of the tubular portion 14b is screwed into this thread groove, thereby attaching the scattering member 30 to the outlet-forming member 14. The interior of the connecting tubular portion 31 communicates with the outlet 14c.

[0050] The spraying member 30 has an expanding diameter tube portion 32 that extends upward from the tip of the connecting tube portion 31 while expanding in diameter. The connecting tube portion 31 and the expanding diameter tube portion 32 are connected to each other. A tip plate 33 having a number of spray ports 33a is provided on the tip surface of the expanding diameter tube portion 32. The spray ports 33a face diagonally upward to the left. The spray ports 33a may face diagonally upward to the right or directly upward.

[0051] (Electric spreading tool) Next, the configuration of the electric sprayer 80 shown in Figure 1 will be described. The electric sprayer 80 comprises an appliance main body 81, a pipe portion 82, and a nozzle portion 83. The appliance main body 81 is provided with a pump, an electric motor that drives the pump, a battery that supplies power to the electric motor, and other components, all of which are not shown. The appliance main body 81 is configured so that the user can hold it in one hand. The appliance main body 81 is also provided with an ON / OFF operation switch 81a. By operating the operation switch 81a, the user can activate the electric motor or stop the electric motor while it is in operation.

[0052] The pipe portion 82 is provided so as to protrude from the tip of the device body 81. The liquid discharged from the pump flows inside the pipe portion 82. The nozzle portion 83 is provided at the tip of the pipe portion 82. The liquid that has flowed inside the pipe portion 82 is discharged from the nozzle portion 83. The nozzle portion 83 may be one that sprays the liquid in a shower-like manner or in a mist-like manner.

[0053] 5, an intake port 81b communicating with the intake side of a pump is formed at the base end of tool body 81. Incidentally, electric sprayer 80 can also be called, for example, a sprayer.

[0054] In addition to the electric sprayer 80, a sprayer having a manual pump or a sprayer that sprays liquid by operating a trigger can also be used.

[0055] (flexible hose) As shown in Figure 5, the main body of flexible hose 70 is made of, for example, a flexible tube made of resin. The length of the main body of flexible hose 70 can be set as desired, for example, to 100 cm or more. By setting the length to this extent, when using the device as described below, the spraying range can be expanded by holding bag body 1 in one hand and moving electric sprayer 80 up and down and left and right with the other hand.

[0056] The base end of the main body of flexible hose 70 is provided with a base end connecting portion 71 that connects to tubular portion 14b of bag body 1. Base end connecting portion 71 is formed to cover tubular portion 14b. A thread groove 71a that screws onto thread 14d is formed on the inner circumferential surface of base end connecting portion 71. By screwing thread 14d of tubular portion 14b into thread groove 71a of base end connecting portion 71 and tightening base end connecting portion 71, the base end of flexible hose 70 can be connected to the inside of tubular portion 14b. By loosening base end connecting portion 71, it can be removed from tubular portion 14b. In other words, outlet forming member 14 is a connecting portion for flexible hose 70, which is connected to electric sprayer 80.

[0057] The tip of the main body of flexible hose 70 is provided with tip connector 72 which is connected to suction port 81b of powered sprayer 80. Tip connector 72 is cylindrical, and is adapted to be connected to suction port 81b by fitting into said suction port 81b.

[0058] (When using liquid spray device A) Next, the use of liquid spraying device A will be described. First, as shown in Figure 5, with bag body 1 in the unused position, cap 15 is removed and then base end connection portion 71 of flexible hose 70 is connected to tubular portion 14b. Base end connection portion 71 of flexible hose 70 is also connected to suction port 81b of electric sprayer 80. Handle 60 is also attached to mounting holes 23b and 24b. This completes the preparation process.

[0059] The process then moves to the spraying step. As shown in Figure 8, after connecting flexible hose 70 to bag 1 and electric sprayer 80, the user holds handle 60 of bag 1 in one hand and tool body 81 of electric sprayer 80 in the other hand.

[0060] When holding the bag 1, because the handle 60 is attached to the lower part of the bag 1, the bag 1 is turned upside down from the unused position to the used position, with the handle 60 positioned at the upper part of the bag 1 and the outlet 14c (shown in FIG. 5) of the bag 1 positioned at the lower part of the bag 1. When the bag 1 is in the used position, the outlet 14c faces downward. If the handle opening 61 shown in FIG. 7 is formed in the bag 1, the handle opening 61 will be positioned at the upper part of the bag 1.

[0061] When the user operates operation switch 81a to activate the pump, the liquid inside bag 1 is sucked through flexible hose 70 and into tool body 81 from suction port 81b. The liquid sucked into tool body 81 flows through tube portion 82 and is then discharged from nozzle portion 83. Liquid can be sprayed continuously while the electric motor of electric sprayer 80 is operating.

[0062] If the liquid is a herbicide, pesticide, or pesticide, it can be sprayed, for example, on home vegetable gardens, hedges, fruit trees, high-altitude garden trees, etc. By using the electric sprayer 80, it is possible to easily spray from low to high places. The liquid sprayer A can also be used to control weeds and prevent pests.

[0063] During spraying of the liquid, the outlet 14c of the bag body 1 faces downward, which allows the flexible hose 70 connected to the outlet 14c to hang down smoothly. This makes the flexible hose 70 between the electric sprayer 80 and the outlet 14c less likely to bend, allowing for smooth spraying. The electric sprayer 80 can be used facing downward or upward. Because the flexible hose 70 is sufficiently long, in either case, there is no need to change the height of the bag body 1; simply keep the hand holding it down naturally. Note that, although the height of the bag body 1 may be changed in some cases, the tool body 81 is generally positioned higher than the bag body 1.

[0064] When the liquid is sprayed, the liquid B contained in the bag 1 flows out from the outlet 14c at the bottom of the bag 1, eliminating the need for the dip tube provided in the conventional example. As a result, even if the liquid B inside the bag 1 decreases and the bag 1 is crushed by negative pressure, the problem of the dip tube breaking does not occur. Therefore, there is no problem with residual liquid, and the user can spray all of the liquid B in the bag 1 without performing any special operations.

[0065] When the liquid B inside the bag 1 runs out, simply prepare a new bag 1 and replace it. The bag 1 that has run out of liquid B will need to be discarded, but since there is no dip tube, it does not get in the way when discarding the bag 1, and there is no need to insert or remove the dip tube, making it easy for the user to handle. In addition, the liquid will not get on your hands.

[0066] 7, the spraying member 30 can also be attached to the tubular portion 14b of the outlet-forming member 14. In this case, the electric sprayer 80 is not used, and the bag body 1 is turned upside down by holding the handle 60. In this case, the spraying port 33a of the spraying member 30 faces diagonally downward, so that the liquid contained in the bag body 1 is sprayed diagonally forward from the spraying port 33a. This makes it easy to spray, for example, herbicides.

[0067] (liquid sprayer package) Because liquid spraying device A is composed of bag body 1, flexible hose 70, handle 60, and electric sprayer 80, bag body 1, flexible hose 70, handle 60, and electric sprayer 80 may be housed in a single package and displayed in a store. The package may be, for example, a bag or a case. Alternatively, the flexible hose 70, handle 60, and electric sprayer 80, excluding bag body 1, may be housed in a single package and displayed in a store. In this case, bag body 1 can be purchased separately and connected to flexible hose 70. In other words, a set consisting of bag body 1, flexible hose 70, handle 60, and electric sprayer 80, or a set consisting of flexible hose 70, handle 60, and electric sprayer 80, can be configured.

[0068] Furthermore, as shown in FIG. 7, when the bag body 1 includes the dispersing member 30, the bag body 1, the handle 60 and the dispersing member 30 may be housed in a single package and displayed in a store.

[0069] (Effects of the embodiment) As described above, the bottom sheet 12, top sheet 10, and back sheet 11 constituting the bag 1 according to this embodiment are welded together to reinforce the bottom, making this reinforced portion as thick as multiple sheets and thus highly strong. By providing the mounting holes 23b, 24b for the handle 60 in this strong portion, sufficient mounting strength for the handle 60 can be ensured, resulting in high durability. Furthermore, since the mounting holes 23b, 24b are only provided in the bottom of the bag 1, the bag 1 does not become larger. Furthermore, because the handle 60 is attached to the bottom of the bag 1, the center of gravity of the handle 60 and the bag 1 is less likely to shift when liquid is poured out, making the bag 1 less likely to bend easily.

[0070] Liquid spraying device A also has bag 1 with outlet 14c, electric sprayer 80 capable of continuously spraying liquid, and flexible hose 70 connecting outlet 14c of bag 1 with inlet 80b of electric sprayer 80, so that when electric sprayer 80 sprays liquid, outlet 14c is positioned at the bottom of bag 1. This allows for spraying without leaving any liquid behind while reducing the amount of plastic used as a spraying container, and also makes dip tubes unnecessary, making it easier for users to handle.

[0071] The above-described embodiments are merely examples in all respects and should not be construed as limiting. Furthermore, all modifications and variations within the scope of the claims are within the scope of the present invention. [Industrial Applicability]

[0072] As described above, the liquid spraying device according to the present invention can be used to spray various types of liquid. [Explanation of symbols]

[0073] A Liquid spraying device 1 bag body 10 Surface sheet 11 Back sheet 12 Bottom sheet 14c Outlet 23 Front bottom seal (front welded part) 24 Back bottom seal (back welded part) 23b, 24b Mounting holes 30 Spraying member 33a Spray port 60 Handle 60a First mounting portion 60b 2nd attached part 60c main body 70 Flexible Hose 80 Electric spreader (spreader)

Claims

1. A self-standing pouch containing a liquid to be sprayed, comprising a top sheet, a back sheet, and a bottom sheet, the bottom sheet being welded to the top sheet and the back sheet, Mounting holes are formed on both the left and right sides of the front welding portion where the bottom sheet and the lower part of the top sheet are welded, Mounting holes are formed on both the left and right sides of the backside welding portion where the bottom sheet and the lower part of the back sheet are welded, the mounting hole formed on the left side of the front-side welded portion and the mounting hole formed on the left side of the back-side welded portion are at the same height and are also at the same position in the left-right direction, the mounting hole formed on the right side of the front-side welded portion and the mounting hole formed on the right side of the back-side welded portion are at the same height and are also at the same position in the left-right direction, A self-standing pouch to which a handle can be attached has: a first attachment portion attached to an attachment hole formed on the left side of the front welded portion and an attachment hole formed on the left side of the back welded portion; a second attachment portion attached to an attachment hole formed on the right side of the front welded portion and an attachment hole formed on the right side of the back welded portion; and a main body portion extending from the first attachment portion to the second attachment portion.

2. 2. The stand-alone pouch according to claim 1, the vertical dimensions of the front welded portion and the back welded portion are set so that portions corresponding to both sides in the width direction of the self-standing pouch are longer than portions corresponding to a central portion in the width direction of the self-standing pouch, The attachment holes are formed on both sides of the front welded portion in the width direction and on both sides of the back welded portion in the width direction.

3. 3. The stand-alone pouch according to claim 2, A self-standing pouch in which a connection part for a flexible hose connected to a sprayer is provided at the upper welded part where the upper part of the top sheet and the upper part of the back sheet are welded.

4. 3. The stand-alone pouch according to claim 2, A self-standing pouch in which a dispensing member having a dispensing opening facing obliquely upward is provided at the upper welded portion where the upper portion of the top sheet and the upper portion of the back sheet are welded.

5. 5. The self-standing pouch according to claim 1, A self-standing pouch in which, when viewed from the front side, the attachment hole formed in the front welded portion and the attachment hole formed in the back welded portion overlap.

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