JP2014073848A - Spout and standing pouch with spout attached thereto - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrict a closing plate of an unopened spout from moving toward an upper end of a cylindrical part and prevent a thin part from being cut even if an inner pressure of a storage portion of a refill container increases due to handling of the refill container during the distribution process.SOLUTION: An over-cap 11 is detachably attached to a cylindrical part 3 of a spout body 10 where the interior of the cylindrical part 3 is closed by a closing plate 8. Engagement means 13 which removably engages with a cylindrical wall of the cylindrical part 3 and restriction means 14 which restricts the closing plate 8 from moving toward the upper end side of the cylindrical part 3, are provided in the over-cap 11.

Description

  The present invention is for attaching toiletries such as liquid detergents and softeners, viscous materials such as edible oil, ketchup and mayonnaise, granules and powders such as instant coffee to flexible bags for storing refills. The present invention relates to a spout and a standing pouch that can be used as a refill container with the spout attached.

  For products such as liquid detergents, the bottle-shaped container body is used to improve drainage during dispensing and to make it easy to weigh and take out an appropriate amount each time the liquid detergent is used. A container with a beak-shaped nozzle attached to the mouth is often used. In such a container, the bottle-shaped container body is generally blow-molded and is a container having a relatively high rigidity. Therefore, when the contents are emptied, the size cannot be reduced, and there is a concern that the volume of garbage increases when a similar container is treated as waste. Also, the spout portion with the nozzle is complicated in shape and has a relatively high molding cost. When such a container is a disposable container, there is an uneconomical aspect.

  Therefore, in recent years, there are refill-only products for replenishing the contents, and containers for the products have been provided. For example, as shown in Patent Documents 1 to 4, a container closed with a breakable film or the like at the mouth of the container body has been proposed, the refill container is turned upside down, and the nozzle of the container to be repeatedly used is There is a contrivance in which a liquid detergent or the like contained in a refill container is repeatedly transferred to a container for repeated use by breaking into the mouth of the refill container and breaking the film.

  In addition, pouch-type flexible bags in which film materials are stacked and the opposite seal sides are heat-sealed have been used as containers for refill-only products. Since the bag body is formed by stacking sheets, if the contents are emptied by transferring contents such as liquid detergent, it is easy to reduce the size and contribute to the reduction of waste volume. In the flexible bag, in order to simplify the operation of refilling the container into the repeated use container, a spout that can correspond to the mouth portion and nozzle of the repeated use container is fused to the bag seal side. It is structured to be fixed.

  In spouts used for flexible bags for refilling, a spout closed with a closing plate continuous to a cylindrical portion through a thin portion that can be cut has been proposed as disclosed in Patent Document 5. There is a contrivance that the spout of the flexible bag turned upside down is repeatedly applied to the nozzle of the container to be used from above, and the spout is pushed down so that the nozzle protrudes into the spout to open the closing plate.

JP 2011-001092 A JP 2011-020742 A JP 2010-247898 A JP 2010-235153 A JP 2010-215282 A

  In the spout in which the inside of the cylinder portion is closed by a closing plate continuous to the cylinder portion, it is considered useful in that a spout having a sealing configuration can be obtained without using a separate member film. An example of the general-purpose type spout is shown in FIGS. The spout 1 is entirely formed of a soft synthetic resin material, and is arranged so as to be sandwiched between seal sides that are overlapped and heat-sealed with flexible bag packaging materials. The synthetic resin material of the spout 1 is selected so that it can be fused and fixed to the bag seal side by performing ultrasonic fusion or the like together with the seal side.

  As shown in FIGS. 5 to 7, the spout 1 includes a bag inner tube portion 2, a bag outer tube portion 3, a first flange 4 positioned between the bag inner tube portion 2 and the bag outer tube portion 3, And a second flange 5 located on the proximal end side of the bag outer cylinder portion 3.

(Bag inner tube)
The bag inner cylinder portion 2 is a portion that faces the inner side of the bag when the spout is attached at the bag seal side b of the flexible bag a (see FIG. 7). This bag inner side cylinder part 2 has the seal part 6 which can be pinched | interposed between the seal | sticker sides c, and the side surface of this seal part 6 turns into a surface corresponding to the inner surface of the seal side c of the flexible bag a. Then, when the sealing portion 6 is disposed between the two seal sides c and is fusion-fixed (for example, ultrasonic sealing), the two seal sides c are moved from the portion where the two seal sides c are directly fused. In order to ensure proper fusion without causing a gap or the like with the seal portion 6 in between, the outer peripheral shape of the seal portion 6 is the outer side of the cylinder portion in the radial direction (two sandwiched portions). A convex portion 7 having a substantially triangular cross-section projecting in the direction perpendicular to the seal side c and extending in the length direction of the bag seal side b at the spout mounting portion is provided on the outer periphery of the cylinder part. The shape is a pair.

(Bag outer tube)
The bag outer cylinder part 3 is a part which is continuous with the bag inner cylinder part 2 and is arranged so as to protrude outward from the bag in the spout mounting form at the bag seal side b of the flexible bag a (FIG. 7). reference). Then, as shown in FIG. 6, the inside of the bag outer cylinder portion 3 is closed with a closing plate 8, and this closing plate 8 is interposed through a severable thin portion 9 surrounding the periphery of the closing plate 8. Is continuous with the inner surface of the cylindrical wall in the cylindrical portion. As shown in Patent Documents 2 and 3 and the like, the spout is pressed against the mouth of the repeated use container from above, and the closing plate 8 is pushed by the nozzle or cutting means on the mouth side of the repeated use container. Most of the thin-walled portion 9 is cut, and the closing plate 8 rotates around the portion on the thin-walled portion 9 side that remains without being cut (or the closing plate 8 itself is separated from the cylindrical portion) to be closed. Will be solved.

  When the spout 1 is attached to the flexible bag a, the first flange 4 located between the bag inner tube portion 2 and the bag outer tube portion 3 is connected to the seal side c of the flexible bag a. The back surface of the flange 4 is abutted so that the bag inner cylinder portion 2 of the spout 1 is positioned so that the flexible bag a does not enter too much.

  The second flange 5 located on the proximal end side of the bag outer cylinder portion 3 is located at a position separated from the first flange 4. The second flange 5 is configured such that when the spout 1 is pressed against the mouth portion d of the repeated use container, the upper end of the mouth portion of the repeated use container comes into contact with the bag outer cylindrical portion 3 and the mouth portion of the repeated use container. In order to prevent the fit with d from becoming excessively deep, this is a part that regulates the depth of pushing the bag outer cylindrical portion 3 into the mouth portion d of the repeated use container.

  As described above, in the spout 1, the bag outer cylindrical portion 3 is closed by disposing the closing plate 8 therein, and the closing plate 8 is made continuous with the inner surface of the cylindrical wall via the severable thin portion 9. In this way, it is molded integrally. In order to obtain a refill container comprising a flexible bag with the spout attached and filled with the contents, a part of the seal side of the flexible bag to which the spout is fused and fixed is normally opened as an unsealed filling port. The flexible bag is set in the filling machine, filling is performed from the portion of the filling port, and the seal side at the filling port is aligned and closed by heat sealing.

  When the refill container is repeatedly refilled into the container to be used from the refill container to which the spout 1 is attached, the refill container is turned upside down as shown in FIG. 8, and the bag is held while holding the spout 1 portion with a finger or the like. The outer cylinder part 3 is repeatedly pushed into the mouth part of the container for use from above.

  The refill container manufactured as described above has the following problems. In other words, in the distribution process until the products are lined up in the store, about 10 or a dozen refill containers are packaged and handled as a single unit. In addition, when the containers are pressed against each other, an external force is applied to the accommodation portion of the refill container, thereby increasing the internal pressure of the accommodation portion. In addition, the internal pressure of the housing part may increase momentarily due to careless handling such as dropping when handling a refill container (when the spout is not opened). The spout closure plate moves slightly as the internal pressure rises, but there is a risk that the thin-walled part will be cut in part at that time. The current situation is that it is not possible to eliminate the possibility that the contents leak from the spout portion.

  In view of the above circumstances, an object of the present invention is to regulate the movement of the unopened spout closing plate toward the upper end of the cylindrical portion, and the internal pressure of the accommodating portion of the refill container by handling during the distribution process of the refill container. The object is to prevent the thin-walled portion from being cut even when the thickness rises.

(Invention of Claim 1)
The present invention has been made in consideration of the above problems, and is a spout that is fused and fixed to a side portion of a container, and is a tube portion that is arranged to project outward in the spout mounting form at the side portion. A spout body provided with a closing plate inside, and the inside of the cylindrical portion being closed by a closing plate disposing portion capable of being cut open, and an overcap that detachably covers the opening at the upper end of the cylindrical portion In a spout consisting of
The overcap is provided with a locking means for releasably locking to a cylindrical wall of the cylindrical portion, and a regulating means for regulating movement of the closing plate toward the upper end side of the cylindrical portion. A spout is provided to solve the above problems.

(Invention of Claim 2)
In the present invention, the overcap is such that the locking means and the regulating means are suspended from the lower surface of the top plate having a diameter larger than the upper end of the cylindrical portion of the spout body, and the lower end of the regulating means is the above-mentioned It is good that the upper surface of the closing plate is in contact or non-contact with the upper surface.

(Invention of Claim 3)
Moreover, in this invention, it is favorable that the planar cross-sectional shape of the said control means is cyclic | annular.

(Invention of Claim 4)
Moreover, in this invention, it is favorable that the planar cross-sectional shape of the said control means is made into plate shape.

(Invention of Claim 5)
Moreover, in this invention, it is favorable that the planar cross-sectional shape of the said control means is X shape.

(Invention of Claim 6)
Another invention is a flexible bag form in which bag wrapping materials are overlapped, and any one of the above claims 1 to 5 between seal sides where the bag wrapping materials are overlapped and heat sealed. A standing pouch characterized in that the spout according to one item is disposed so as to be sandwiched, and the spout is fused and fixed to a bag seal side part formed by fusion of the seal side, and the standing pouch is provided. This solves the above problems.

  According to the spout of the present invention, since the overcap has a restricting means for restricting the closing plate of the spout body from moving upward, the internal pressure of the container to which the unopened spout is attached is increased. Even if it acts in the direction in which the closing plate is pushed up to the upper end side of the cylinder portion, the movement of the closing plate can be suppressed by the restricting means. Therefore, there is an excellent effect that the cutting at the thin portion does not occur and the stored item can be prevented from leaking out. The restricting means enters the inside of the cylindrical part of the spout body in contact with or close to the closing plate, and even if an external force is applied from the lateral direction to the cylindrical part of the spout body, the cross-sectional shape of the cylindrical part is deformed. The regulating means plays the role of maintaining the cross-sectional shape of the cylinder part, and it is possible to reliably prevent the trouble that the thin part is damaged (tearing, stretching, etc.) due to deformation caused by external force applied to the cylinder part. By making the cross-sectional shape an annular shape, a plate shape, or an X shape, the operation is further ensured.

  Further, according to the standing pouch of the present invention, since the spout overcap has a restricting means for restricting the upward movement of the spout closing plate attached to the side of the bag seal, the sealed pouch is accommodated. Even if the internal pressure of the portion rises and the pressure acts in the direction of pushing up the closing plate toward the upper end side of the cylindrical portion, the movement of the closing plate is suppressed by the restricting means. Therefore, there is an excellent effect that the cutting at the thin portion does not occur and the stored item can be prevented from leaking out.

It is explanatory drawing which shows an example of the spout of this invention in the state which isolate | separated the spout main body and the overcap. The overcap in an example of this invention is shown, (A) is explanatory drawing which shows the state seen from upper direction, (B) is explanatory drawing which shows a cross section, (C) is explanatory drawing shown in the state seen from the lower part is there. It is explanatory drawing which similarly shows an example of the spout of this invention in the state of a longitudinal cross section. It is explanatory drawing shown in the state which turned down an example of the standing pouch of this invention. It shows a spout of a conventional example. (A) is an explanatory view showing a state seen from one side, (b) is an explanatory view showing a state seen from below, and (c) is a state seen from above. Explanatory drawing shown, (d) is explanatory drawing which shows the state seen from the other side. Similarly, the conventional spout is shown in a vertical cross-sectional state, where (A) is an explanatory view showing a cross section along line A-A in FIG. 5, and (B) is (D) BB in FIG. It is explanatory drawing which shows the cross section along a line. It is explanatory drawing which shows an example of the flexible bag which attached the spout of the prior art example in the state which turned down the said bag. It is explanatory drawing which shows the state which applied the spout of the prior art example repeatedly to the opening | mouth part of a use container.

  Next, the present invention will be described in detail based on the embodiment shown in FIGS. In addition, the part which a structure overlaps with the prior art shown in FIGS. 5-8 is attached | subjected the same sign, and the description is abbreviate | omitted. The spout 1 is composed of a spout main body 10 integrally including the bag inner tube portion 2, the bag outer tube portion 3, the first flange 4 and the second flange 5, and an overcap 11. It is. In this embodiment, there is a great difference from the above-described conventional example in that the overcap 11 is arranged on the spout body 10.

  This overcap 11 covers the opening part of the upper end of the bag outer side cylinder part 3 of the spout main body 10 so that attachment or detachment is possible. As shown in the figure, the overcap 11 has a top plate 12 having a diameter larger than that of the upper end portion of the bag outer cylinder portion 3 as shown in FIGS. The locking means 13 having an annular cross-sectional shape and the regulating means 14 having a flat cross-sectional shape annularly hanging from the lower surface of the top plate 12 to the inside of the locking means 13 are also included. The locking means 13 in the overcap 11 can be positioned so as to surround the cylindrical wall on the upper end side of the bag outer cylindrical portion 3, and the locking convex portion 15 on the lower end goes around the outer periphery of the cylindrical wall of the bag outer cylindrical portion 3. The overcap 11 can be attached to the spout body 10 by being detachably locked to the locking groove 16 formed as described above.

  Further, the regulating means 14 regulates the movement of the closing plate 8 toward the upper end side of the bag outer side cylinder portion 3, and as described above, the external pressure is applied to the accommodating portion at the time of circulation of the refill container with the spout 1 attached thereto. Is added to suppress the movement of the closing plate 8 that receives the action of pushing upward toward the upper end side of the bag outer cylinder portion 3 due to the increased internal pressure of the housing portion. In this way, since it has a role of restricting the movement of the closing plate 8 that moves upward, the restricting means 14 is positioned corresponding to the closing plate 8 with the overcap 11 attached. In the example, the lower end of the closing plate 8 is provided so as to face the outer peripheral portion of the closing plate 8, and the lower end 17 of the restricting means 14 is arranged in close contact with the upper surface of the closing plate 8.

  Since the restriction means 14 is provided on the overcap 11 as described above, the upward movement of the closing plate 8 can be suppressed even if the internal pressure of the accommodating portion of the refillable container to which the spout 1 is attached is increased. The thin-walled portion 9 around 8 is not cut, and liquid leakage due to the thin-walled portion 9 being cut does not occur. The annular outer peripheral surface of the restricting means 14 is in contact with the inner peripheral surface of the bag outer cylindrical portion 3, and the restricting means 14 supports the bag outer cylindrical portion 3 from the inside of the cylinder. ing. Therefore, even if an external force is applied to the bag outer tube portion 3 from the lateral direction and the cross sectional shape of the tube portion is deformed, the thin portion 9 is broken by the regulating means 14 while maintaining the cross sectional shape of the bag outer tube portion 3. The damage such as.

  In the above embodiment, the flat cross-sectional shape of the restricting means 14 is annular, but the shape of the restricting means 14 is not limited. For example, it is good also as plate shape drooping from the lower surface of the top | upper surface board 12, or making the flat cross-sectional shape into X shape. Furthermore, the lower end 17 of the restricting means 14 may be brought into contact with the upper surface of the closing plate 8. Thus, even if the restricting means 14 is plate-shaped or X-shaped, it is preferable that the regulating means 14 is in contact with the inner peripheral surface of the bag outer cylinder portion 3, and the bag outer cylinder described above is formed by making the contact form. It is possible to prevent the thin portion from being damaged when an external force is applied to the portion from the lateral direction.

  The closing plate disposing portion 18 that closes the outer bag cylinder 3 has a disk-like closing plate 8 according to the plane cross-sectional shape of the outer bag cylinder 3 as shown in the cross section, and the periphery of the closing plate 8. The thin-walled portion 9 is provided on the inner wall of the cylinder wall so that the closing plate 8 is continuous with the inner surface of the cylindrical wall. Since the restricting means 14 is annularly attached to the inner peripheral surface of the bag outer cylindrical portion 3 and attached to the upper end side of the bag outer cylindrical portion 3, the lower end portion 17 of the restricting means 14 is formed of the thin portion 9. The disk-shaped closing plate 8 is also formed to have a sufficient thickness so as to be opposed to the outer periphery of the disk-shaped closing plate 8.

  In the closing plate arrangement portion 18 in the illustrated embodiment, the closing plate 8 is shown as a disc shape, and the circular thin portion 9 around the closing plate 8 is shown as being located along the inner surface of the cylinder wall. However, the closing plate arrangement portion 18 is not limited to this example. For example, the closing plate arrangement part is provided with a thin wall portion at a position passing through the center in the radial direction of the tube portion and a position along the inner peripheral surface of the tube wall, and the semicircular closing plates are arranged in pairs. It may be of a form. In this case, the restricting means may be annular along the inner peripheral surface of the cylindrical wall, but the semicircular closing plate as a small-diameter annular separated from the inner peripheral surface of the cylindrical wall toward the center of the cylindrical portion. It forms so that the lower end of a regulation means may correspond to each reliably.

  That is, in the above embodiment, as shown in FIG. 3, the plate portion 8a of the closing plate 8 surrounded by the thin portion 9 is a single piece, but the plate portion 8a surrounded by the thin portion 9 is respectively In the case where a plurality of plate portions 8a are formed, the cross-sectional shape of the restricting means 14 is set so that the lower end portion 17 of the restricting means 14 corresponds to each plate portion 8a. What is necessary is just to form in the shape which the lower end part 14 of 14 can respond | correspond.

  FIG. 4 shows a standing pouch 19 which is a flexible bag to which the spout 1 is attached. The standing pouch 18 has three sheets of a front sheet, a rear sheet, and a bottom sheet folded between the front sheet and the bottom sheet as a bag packaging material, and heat-sealing the opposite sealing sides of the bag packaging material. The form that can stand on its own by widening the bottom of the bag with the bottom sheet.

  And the seal part 6 of the bag inner side cylinder part 2 in the spout 1 is sandwiched between the seal sides c of the front sheet and the back sheet facing each other at the upper corner of the bag, and the outer edge of the seal side c is placed inside the bag of the first flange 4. A standing pouch 19 in which the spout 1 is attached to one corner of the upper part of the bag is formed by ultrasonically welding the seal portion 6 and the seal side c to one side of the tube portion 2 side.

  In the standing pouch 19, during the process of distributing the refill container using the standing pouch, an inadvertent external force is applied to the housing portion, the internal pressure of the housing portion increases, and the closure plate 8 of the spout 1 is attached to the bag outer cylinder. Even if the action of pushing up toward the upper end side of the portion 3 works, the restriction means 14 of the overcap 11 suppresses the upward movement of the closing plate 8 as described above, and the liquid due to the cutting of the thin portion 9 Leakage can be prevented beforehand.

DESCRIPTION OF SYMBOLS 1 ... Spout 2 ... Bag inner side cylinder part 3 ... Bag outer side cylinder part 8 ... Closure board 8a ... Plate part 9 ... Thin part 10 ... Spout main body 11 ... Overcap 12 ... Top plate 13 ... Locking means 14 ... Control means 15 ... Locking convex part 16 of the locking means 16 ... Locking groove 17 ... Lower end part of the regulating means 18 ... Closing plate arrangement part 19 ... Standing pouch a ... Flexible bag b ... Bag seal side part c ... Seal side

Claims (6)

A spout that is fused and fixed to a side portion of a container, and a closure plate is provided inside a cylindrical portion that is arranged to project outward in the spout mounting form at the side portion, so that a cutting opening is possible. In a spout comprising a spout body in which the inside of the cylindrical portion is closed by a closing plate arrangement portion, and an overcap that detachably covers an opening at the upper end of the cylindrical portion,
The overcap is provided with a locking means for releasably locking to a cylindrical wall of the cylindrical portion, and a regulating means for regulating movement of the closing plate toward the upper end side of the cylindrical portion. Spout.   In the overcap, the locking means and the restricting means are suspended from the lower surface of the top plate having a diameter larger than the upper end of the cylindrical portion of the spout body, and the lower end of the restricting means is in contact with the upper surface of the closing plate. Or the spout of claim 1 in close contact in a non-contact state.   The spout according to claim 1 or 2, wherein a flat cross-sectional shape of the regulating means is annular.   The spout according to claim 1 or 2, wherein the regulating means has a flat cross-sectional shape.   The spout according to claim 1 or 2, wherein a flat cross-sectional shape of the restricting means is an X shape.   It is a flexible bag form in which bag packaging materials are overlapped, and the spout according to any one of claims 1 to 5 is sandwiched between seal sides where the bag packaging materials are overlapped and heat sealed. A standing pouch characterized in that the spout is fusion-fixed to a bag seal side part formed by fusing the seal side.

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