JP5414032B2 - Refillable pouch spout - Google Patents

Description

  The present invention is a spout for a refill pouch, and a pull tab that opens with a pull tab, such as a spout for a refill pouch to a container having a cap having a pouring opening on the top wall, attached to the container mouth. The present invention relates to a refillable pouch spout that can stably refill the contents of a container with a cap attached to the container body.

  Conventionally, for example, in a shampoo container, it has been widely practiced to replenish the contents from the refill pouch to the container body and continue to use the containers when the consumption of the contents is completed. Containers to be refilled and refilled with contents from such a refill pouch are containers with a dispensing pump that can be attached to and removed from the container mouth with screws, and containers that can be opened with screw caps. In some cases, these pumps and screw caps are removed, the container mouth is fully opened, and the filling pouch is poured from the spout. However, since the refill pouch is a flexible bag and has no shape retention, it is difficult to handle, and even if it is poured into the fully opened container mouth, it is difficult to refill without spilling from the pouch into the container mouth. In order to facilitate refilling, various refilling pouches have been proposed in which a rigid spout is provided in the pouch and the spout is inserted into the container mouth to be refilled (for example, Patent Document 1, 2).

Japanese Utility Model Publication No. 7-40466 JP 2004-231217 A

  As described above, the container that is continuously used after refilling the contents has a screw cap or a screw-fitting pouring pump at the mouth, and the container mouth is opened by detaching them when refilling. The spout can be inserted into the container mouth portion, and for example, by pulling the pull tab 53 like a cap 50 with a pull tab as shown in FIG. 12, a part of the top wall of the cap body 51 is broken. A pouch with a spout that can be applied to refilling a container having a cap that opens a dispensing opening is not yet known. The shape of the dispensing opening of the cap with a pull tab is generally non-circular so that a small amount can be dispensed as shown in FIGS. 13A to 13C and liquid dripping is prevented during dispensing. This is because a refilling pouch having a spout has a complicated shape and has a small dispensing opening, so that it cannot be stably refilled. Caps with pull tabs are generally used in seasoning containers such as edible oil and soy sauce, and are often used in plug caps that have better sealing performance than screw caps. Since the cap cannot be removed unless it is broken, it cannot be refilled by removing the cap like a screw cap. Even if refilling is performed from a pouch with a spout into the pull-tab type dispensing opening, the spout spout and the cap opening are not fixed, so refilling must be performed in an unstable state. Therefore, a refill pouch applicable to these containers has not been provided so far, and these containers have a problem that their contents cannot be refilled and used repeatedly.

  The present invention is intended to solve the above-mentioned problems, and can be easily inserted into and held in a container having a pouring opening on the top wall of a cap with a pull tab having a pouring tube, and can be refilled stably. An object of the present invention is to provide a pouch for a pouch and to allow the contents to be stably refilled and reused even in a container with a stopper cap.

  The refill pouch spout of the present invention that solves the above problems is a refill pouch spout to a container having a cap having a pouring opening on the top wall and attached to the container mouth, and the spout is a spout part. And a welding portion that is welded to the pouch, and the spout portion is engageable with the inner surface of the top wall at the periphery of the spout opening when the spout portion is inserted into the spout opening. A plurality of ribs are formed, and at least a pair of the ribs are formed at diagonal positions on the outer peripheral surface of the spout portion.

  In the spout for refilling pouches of the present invention, a stopper is formed on the outer peripheral surface of the spout part closer to the weld part than the rib, and the stopper has the spout part inserted into the spout opening part. At this time, it is desirable that refilling can be performed more stably by being formed so as to be engageable with the outer surface side of the top wall at the periphery of the pouring opening.

  The pair of ribs at the diagonal positions are formed of rigid protrusions protruding outward from the outer peripheral surface of the spout part, and the length connecting the ends of the pair of protrusions is the pouring opening of the container It is shorter than the long diameter part and longer than the short diameter part, and can be inserted below the pouring opening by pushing in accordance with the long diameter part of the pouring opening. By being located on the part side, it can be configured to be able to engage with the inner surface side of the top wall. Further, as another form, the pair of ribs at the diagonal positions are formed of flexible flap pieces protruding outward from the outer peripheral surface of the spout portion, and the tips of the pair of flap pieces are The length to be tied may be longer than at least the short diameter portion of the extraction opening.

The stopper has an outer diameter that is at least larger than the short diameter portion of the pouring opening, and the surface on the opening end side of the pouring spout of the stopper is an inclination angle of the outer surface of the top wall at the periphery of the pouring opening It is desirable that it can be stably seated by forming it into a tapered shape having an inclination angle equivalent to the above and extending from the outside to the inside and toward the opening end side. In addition, the end of the spout has a knob that seals the end of the spout, and the knob is weakened so that the knob can be folded at the connection between the knob and the end of the spout By forming the portion, a spout having a simple structure and excellent sealing performance can be obtained.

  According to the spout for a refill pouch according to the invention of claim 1, the spout is inserted into the spout opening of the cap attached to the container mouth during refilling, thereby opening the spout outlet of the spout during refilling. When a force is applied to the end to pull out from the pouring opening of the container, the rib formed on the outer peripheral surface of the pouring spout engages with the inner surface of the top wall of the peripheral edge of the pouring opening and tries to pull out. So that it can be refilled stably. In addition, according to the configuration of claim 2, since the stopper prevents the spout portion from entering the spout opening, the weight of the pouch can be held in the container to some extent during refilling, Can be refilled easily.

  According to the structure of Claim 3, the structure of a rib is simple, a rib engages easily with the inner surface of the top | upper surface wall of the periphery of a pouring opening part by turning a pouch with a spout after insertion, and there is some backlash. Even if it exists, it can prevent that a spout leaves | separates from a pouring opening part. According to the fourth aspect of the present invention, the rib engages with the inner surface of the top wall at the periphery of the spout opening simply by pushing down the spout, and the rib is used to remove the spout from the spout opening. Since force is applied by engagement with the inner surface of the top surface wall at the periphery of the dispensing opening, refilling can be performed stably without detachment with a looseness. Further, according to the fifth aspect of the present invention, it is desirable that the stopper can be stably seated on the outer surface of the top wall at the periphery of the spout opening, and can be refilled stably.

It is a perspective view of the spout for refilling pouches according to the embodiment of the present invention. It is a perspective view of the state where the knob was removed and opened. It is a top view in the state where the pouring part was inserted in the cap with a pull tab. It is the front sectional drawing. FIG. 4 is a view corresponding to FIG. 3 in a state where the refillable pouch spout is rotated by 90 ° from the state of FIG. It is front sectional drawing showing the state at the time of refilling, (a) is a state in which the stopper is sitting on the outer surface of the top wall of the cap body, and (b) is a state where the rib is engaged with the inner surface of the top surface of the cap body. It is in a state. It is a top view in the state where the pouring part was inserted in the cap with a pull tab from which the form of the pouring opening part of the spout for refilling pouches concerning other embodiments differs. It is the front sectional drawing. It is a front sectional view in the state where a rib is bent from the state of FIG. 8 and is going to exceed the extraction opening. The rib is engaged with the inner surface of the top wall of the cap body. It is front sectional drawing showing the state at the time of refilling. It is front sectional drawing of the state which plugged the conventional hinge cap with a pull tab at the bottle mouth. (A)-(c) has shown the example of the shape of the extraction | pouring opening part of the conventional cap with a pull tab.

  The refill pouch spout according to the present embodiment is a refill pouch spout suitable for refilling the content liquid from the refill pouch into, for example, a container equipped with a cap 50 with a pull tab as shown in FIG. . The cap 50 with a pull tab is configured to open a dispensing opening 55 by cutting a part of the top wall from the tear score by pulling a pull tab 53 that is formed to protrude from the top wall 52 of the cap body 51. The shape of the dispensing opening is not limited to a simple circular shape. For example, the dispensing openings 55a to 55c shown in FIGS. 13 (a) to 13 (c) are devised so that the content liquid can be easily poured. There is a shape. As shown in FIG. 12, such a cap with a pull tab is generally attached to the container 60 by a stopper, and the cap body cannot be removed from the container unless the cap body itself is broken. Replacement must also be poured from the dispensing opening opened by the pull tab. 12 is formed as a hinge cap hinged to the cap main body 51. The upper cover 56 is configured by a screw cap that can be opened and closed by screw tightening with respect to the cap main body 51. It does not matter if it is. Further, the cap body is not necessarily limited to the stopper cap, and may be a screw cap. Even in that case, the cap body can be stably refilled from the dispensing opening without causing the cap body to be removed from the container. .

An embodiment of a refillable pouch spout according to the present invention suitable for refilling into a container as described above will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a state before an unopened spout for refilling pouches according to the present embodiment, and FIG. 2 is a perspective view showing a state in which the knob is removed and opened. The refillable pouch spout 1 of the present invention comprises a pouch welded portion 4 composed of a boat-shaped portion 2 and a flange portion 3 welded to an opening of the pouch, a pipe-shaped spout portion 5 protruding upward from the pouch welded portion, The upper end of the spout portion is sealed and includes a knob portion 6 projecting like a butterfly plate at both ends, and a score 7 is formed at a connecting portion between the knob portion and the opening end of the spout portion. The pour spout can be easily opened by breaking it from the open end of the spout.

  Then, the outer peripheral surface of the spout portion 5 can be inserted into a spout opening formed in the top wall of the cap body when refilling into a container as shown in FIG. 12, for example, and the peripheral edge of the spout opening A plurality of ribs 11 are formed to engage with the inner surface of the top wall. In this embodiment, the rib 11 has a rectangular tongue shape, and is configured as a pair of rigid protrusions formed at diagonal positions on the outer peripheral surface of the spout portion. The length connecting the tips of the pair of protrusions of the rib 11 is, for example, shorter than the long diameter part a and longer than the short diameter part b of the extraction openings 55a to 55c of the cap body shown in FIG. Is formed narrower than the short diameter portion b. Here, the long diameter portion and the short diameter portion are the longest diameter portion at the position where the opening end of the spout portion can be inserted into the pouring opening, and the shortest diameter portion is called the short diameter portion. . Therefore, when refilling, the rib can be inserted into the cap body, exceeding the top wall, if the spout is aligned and inserted so that the rib is positioned at the long diameter part of the dispensing opening. If the spout is rotated integrally with the pouch at the position and the rib is positioned at the short diameter portion, the rib engages with the inner surface of the top wall when moving upward, and the spout is pulled out during the refilling operation. Can be prevented.

  Further, stoppers 10 are formed on the outer peripheral surface of the spout part 5 at a predetermined interval closer to the weld part than the rib 11. The stopper 10 is seated on the top wall of the cap body when the spout is inserted into the spout opening at the time of refilling, and prevents further penetration and the pouch does not buckle. Refilling can be performed in a state where the weight is added to the top wall of the cap body to the extent, so that refilling can be performed easily and stably. Therefore, the shape of the stopper is not particularly limited as long as the stopper can be engaged with the outer surface of the top wall. However, in the illustrated embodiment, a circular flange shape in which the portion contacting the outer surface of the top surface is a tapered surface. Is formed. The portion that contacts the outer surface of the top surface is formed into a tapered surface because the outer surface of the top surface on which the pull tab type dispensing opening is formed is, for example, as shown in FIG. In order to make it easy for the content liquid adhering to the outer surface to return to the inside of the container, it is usually a curved surface in the container. Therefore, by forming a tapered surface along the shape of the curved surface, This is because they can sit down. However, it is not always necessary to form the taper surface, but it may be a flange having a flat surface, or may be formed by projecting a plurality of convex pieces radially. These stoppers need to have a diameter longer than at least the short diameter portion of the pouring opening in order to be locked to the outer surface of the top wall without passing through the pouring opening.

  3 to 6 show a state in which the content liquid is refilled from the refill pouch equipped with the refill pouch spout of the present embodiment formed as described above. The cap 30 with a pull tab of the container shown in FIGS. 3 to 6 includes a cap body 34 and an upper lid 35. As shown by a broken line in FIG. 3, a pouring opening 31 is poured from the circular portion 32 and the circular portion. It consists of an outflow guiding portion 33a extending along both ends in the tilt direction at the time of exit, and a pull tab tear start portion 33b. In that case, the refilling of the contents from the refilling pouch 20 to the container 21 is performed with the pair of ribs 11 having a long diameter portion as shown in FIG. The spout portion is inserted in accordance with the outflow guide portion 33a and the tear start portion 33b, and the refill pouch 20 is rotated by 90 ° in this state, so that the rib 11 is placed on the outer periphery of the circular portion 32 as shown in FIG. The stopper 10 is engaged with the inner surface of the top wall to prevent it from coming off, and the stopper 10 is seated on the outer surface of the top wall as shown in FIGS. In this state, the contents can be refilled by pressing the pouch container, but there is a sufficient gap between the spout and the spout opening, so the air in the container can easily escape and refill well. Can do. In addition, even if the hand holding the spout and the spout shakes during refilling, the stopper 10 and the rib 11 restrain the upward and downward movement of the spout part even if the position is slightly shifted. It can be refilled stably without easily coming out of the opening. When the refilling is completed, the spout 5 can be easily pulled out from the cap body 34 by rotating the refilling spout 90 ° again to return to the state shown in FIG.

7 to 11 show a usage pattern of a refillable pouch spout according to another embodiment of the present invention.
The refill pouch spout 15 according to this embodiment is different from the refill pouch spout 15 of the above embodiment only in the form of the ribs, and the other forms are the same. Only the differences will be described. The spout for refilling pouch 15 of the present embodiment is different from the above-described shape of the dispensing opening, and has a shape that does not have a form of a short diameter portion and a long diameter portion, particularly when the dispensing opening 37 of the container is circular. Is also configured to be applicable. The rib 16 is formed as a flexible flap piece. As shown in FIGS. 8 to 11, the rib 16 has a weakened portion 17 that becomes a starting point of bending, and the spout portion 5 is placed in the container. When pushed in, the outer side of the weakened portion 17 of the rib 16 hits the outer peripheral surface of the pouring opening 37 of the top surface wall 36 of the cap body 34, and the inner side is bent inward as shown in FIGS. And can pass through the dispensing opening 37. Then, after passing, it is restored by elasticity as shown in FIG. 10, and when the spout 5 is pulled out from the container, it comes into contact with the inner peripheral surface of the top wall 36 as shown in FIG. Resistance to prevent the spout from coming off easily during refilling. In order to remove the spout portion 5 from the pouring opening from the state shown in FIG. 11 after the refilling is completed, the rib 16 is lifted from the weakened portion 17 in the direction opposite to that at the time of insertion by pulling up the pouch from the state shown in FIG. It can be extracted by reversing. By making the rib a flexible flap piece as in the above embodiment, the spout can be easily formed without any particular alignment even in the case of a short diameter part, a shape having a long diameter part, or a circular pouring opening. It becomes possible to insert and remove the part.

  The weakened portion 17 of the rib 11 in the above embodiment is easy to insert and difficult to remove by forming a groove on the upper side surface of the rib and making it easy to fold upward and difficult to fold downward. Thereby, although there is some force to pull out, it is prevented from coming out easily at the time of refilling. The bending strength of the rib is designed to have a resistance that can be easily pulled out with a normal force.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the technical idea. For example, in the above-described embodiment, both the rib and the stopper are provided on the outer periphery of the spout portion. However, although not desirable, only one of them, for example, the rib may be provided. Moreover, although the said embodiment demonstrated the case of the container equipped with the cap which consists of a cap main body opened by a pull tab as a container for refilling, and an upper cover, the spout for refilling pouches of this invention is not necessarily such a container. Needless to say, the present invention can be applied to refilling various containers.

  The spout for a refill pouch of the present invention can be used as a spout for a refill pouch for various containers, and is particularly suitable for a container equipped with a cap having an extraction opening by a pull tab, which has been difficult to refill conventionally. Stable refilling is possible, and industrial applicability is high.

DESCRIPTION OF SYMBOLS 1,15 Spout for refilling pouch 2 Boat shape part 3 Flange part 4 Pouch welding part 5 Spout part 6 Knob part 7 Score part 10 Stopper 11, 16 Rib 17 Weakening part 20 Refilling pouch 21 Container 30 Cap with pull tab 31, 37 Dispensing opening 32 Circular portion 33 Dispensing guide 34 Cap body 35 Top lid 36 Top wall

Claims (5)

  A cap having a pouring opening on the top wall is a spout for refilling a pouch attached to a container mouth portion, the spout having a spout portion and a welding portion welded to the pouch. The mouth is formed with a plurality of ribs that can be engaged with the inner surface of the top wall at the periphery of the spout opening when the spout is inserted into the spout opening. A spout for a refill pouch, wherein the spout is formed at a diagonal position on the outer peripheral surface of the mouth.   On the outer peripheral surface of the spout portion, a stopper is formed closer to the weld portion than the rib, and the stopper is disposed at the periphery of the spout opening portion when the spout portion is inserted into the spout opening portion. The spout for a refill pouch according to claim 1, wherein the spout is formed to be engageable with the outer surface side of the top wall.   The pair of ribs at the diagonal positions are formed of rigid protrusions protruding outward from the outer peripheral surface of the spout part, and the length connecting the ends of the pair of protrusions is the pouring opening of the container It is shorter than the long diameter part and longer than the short diameter part, and can be inserted below the pouring opening by pushing in accordance with the long diameter part of the pouring opening. The refillable pouch spout according to claim 1 or 2, wherein the spout for refilling pouches can be engaged with the inner surface of the top wall by being positioned on the side of the top.   The pair of ribs at the diagonal positions is formed of a flexible flap piece formed to protrude outward from the outer peripheral surface of the spout portion, and the length connecting the tips of the pair of flap pieces is at least the above The spout for a refillable pouch according to claim 1 or 2, wherein the spout is formed longer than the short diameter portion of the dispensing opening. The stopper has an outer diameter that is at least larger than the short diameter portion of the pouring opening, and the surface on the opening end side of the pouring spout of the stopper is an inclination angle of the outer surface of the top wall at the periphery of the pouring opening The spout for a refill pouch according to claim 2 , wherein the spout has a tilt angle equivalent to that of the outer periphery and is formed in a tapered shape extending from the outside to the inside and toward the opening end.

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