JP5192286B2 - Spout and spout container - Google Patents

Description

  The present invention relates to a spout attached to a bag-like container main body as a spout, a spout or a take-out port for contents, and a spout-equipped container having the spout attached to a bag-like container main body. More specifically, for example, it is attached as a drinking mouth, spout or outlet to a container body that contains a liquid beverage, a liquid food, an infusion bag (for example, an infusion bag), a liquid detergent for refilling, various powders, and the like. The present invention relates to a spout and a spout-equipped container in which a spout is attached to the container body.

  Patent Document 1 discloses a cylindrical mouth portion and a tubular hem portion that is connected to one end of the mouth portion, and a tip end portion of which is sandwiched between sheet materials constituting a bag-like container body and heat-sealed. For the spout with the skirt, the shape of the skirt is gradually expanded from the mouth side toward the tip, and the tip that is sandwiched between the sheet materials is formed into a cylindrical shape with a constant diameter. . Further, Patent Document 1 also discloses that the skirt portion can be deformed.

JP-A-10-273154

  By the way, when the container main body in a container with a spout makes a bag shape, there exists a problem which a container main body tends to be crushed with taking out the contents. When the container main body is crushed, the movement of the contents in the container main body is hindered, and it becomes difficult to smoothly move the contents to the attachment side of the spout, and it becomes difficult to take out the contents.

  An object of this invention is to make it easy to maintain the container main body in a container with a spout in the swelled state irrespective of the residual amount of the contents.

  For the above purpose, the present invention provides a spout capable of exerting a spreading force on a wide range of a container body.

Scan Pauto of the present invention includes a cylindrical mouth portion, continuous to one end of the mouth portion, at least the tip portion, bag-like sandwiched between the sheet material constituting the container body cylindrical to be heat-sealed A hem portion, the skirt portion being elastically squeezable and having a shape in which the entire diameter gradually increases from the mouth side toward the tip, and an end of the hem portion on the mouth side The diameter of the portion is larger than the diameter of the end portion of the mouth portion on the hem portion side, a step is formed between the two, and one of the outer peripheral shape and the inner peripheral shape in the radial cross section of the hem portion is an ellipse Since the shape and the other are circular, thick portions larger in thickness than other portions are formed at positions opposite to each other in the radial direction .

The present invention also provides a spout with a container having an upper kiss Pauto.

In the spouted container of the present invention, the hem of the second spout is sandwiched between the outer edges of the stacked sheet materials, and the sheet material and the hem are heat-sealed. The spout seal portion, and the outer edge seal portion formed by heat-sealing the outer edge portions of the sheet material including the right and left of the skirt portion continuously with the spout seal portion, the sheet material is formed into a bag-like container body. The spout is attached to the container body and the entire edge on the skirt side of the outer edge seal portion formed adjacent to the left and right sides of the skirt portion is along the expanded shape of the hem portion. While each inclining inward, the thick part of the said skirt part is located in the left-right direction, It is characterized by the above-mentioned.

Above or kiss Pauto container with the leading edge of the skirt portion is coincident with the inner edge extension line of the inner edge of the outer seal portion formed adjacent to the left and right extended to the opposite direction of the skirt, the Entering outside the inner edge extension line,
The container body is a self-supporting bag,
The container body is a standing pouch,
Is included as a preferred embodiment thereof.

The spout of the present invention has a hem that spreads toward the end, and this skirt is attached by being sandwiched between sheet materials constituting the container body. The skirt attached to the container body acts on the region in the extending direction of the divergent shape to apply a force to maintain the container body in an expanded state, and can prevent the container body from being crushed over a wide range. it can. Therefore, even if the contents are reduced, the container main body is not easily crushed and the contents can be smoothly moved within the container main body, so that the contents can be easily taken out.

  By the way, when a skirt part is comprised with a hard material, formation of a spout seal part is performed using the sealing board which has a curved part corresponding to the shape of a skirt part.

  On the other hand, if the skirt can be crushed elastically, it can be elastically restored after the skirt is temporarily crushed by sandwiching it with a sealing plate from the outside of the sheet material to form the spout seal portion. The spouted container can be manufactured with a general flat sealing plate without preparing a special sealing plate. In addition, if the diameter of the end on the mouth side of the hem is made larger than the diameter of the end on the hem side of the mouth, and a step is formed between them, the diameter of the hem is changed to the diameter of the mouth. Regardless of the size, the container body can be expanded more greatly, and it is reinforced by the step portion, so that it is easy to obtain a repulsive force for elastically restoring the skirt once crushed by the seal plate.

In particular, when the crushing direction of the seal plate and the vertical direction, placing as the thick portion is positioned at opposite ends in the lateral direction, i.e. crushed spout, anti the thick portion is in contact pressure And support both ends of the hem. Thereby, when the bottom part is crushed, it is suppressed that the upper and lower inner surfaces of a bottom part are pressed strongly. Therefore, the inner surface of the skirt is not heat-sealed, and the function of the spout serving as a drinking mouth, a spout or a taking-out mouth is not impaired.

Spout with the container of the present invention, the flared skirt in which had use a scan Pauto of the present invention with a, yet end of the skirt side of the outer seal portion formed adjacent to the left and right of the skirt The entire edge is inclined inward along the expanded shape of the skirt. Thus has been described scan Pauto of the present invention, it is possible to effectively apply a force to inflate the container body. Further, the scan Pauto with container of the present invention, since it is one using a scan Pauto above Symbol present invention, it is possible to obtain effects described for further spout above Symbol present invention.

In the spouted container of the present invention , the leading edge of the skirt is aligned with the inner edge extension line of the outer edge seal portion formed adjacent to the left and right of the hem, or is inserted outside the inner edge extension line. If this is done, the contents near the tip of the skirt can be smoothly moved into the spout as compared with the case where the tip of the skirt is protruded inward. Also, if the container body is a self-supporting bag having a bottom surface, particularly a standing pouch, the lower side of the container body can be inflated by the presence of the bottom surface, and the upper side of the container body can be inflated by the hem of the spout. Since it can, the whole container body can be expanded.

  Hereinafter, the spout and the container with a spout according to the present invention will be further described with reference to the drawings. In the drawings described below, the same reference numerals denote the same components.

< Reference spout and container with reference spout>
Figure 1 is a sectional view showing an example of a reference spout according to a reference example of the present invention, FIG. 2 is a plan view showing an example of a reference spout with the container according to a reference example of the present invention, reference spout 3 is shown in FIG. 2 FIG. 4 is an enlarged plan view showing a state in which the reference spout is attached to the container body, and FIG. 5 is an explanatory view of the operation of the reference spout and the reference spout-equipped container.

As shown in FIG. 1, a reference spout 1 is composed of a mouth portion 2 and a skirt portion 3 connected to one end of the mouth portion 2. The mouth portion 2 has a male screw 4 formed on the outer peripheral surface thereof, and can be opened and closed by a cap 6 in which a female screw 5 for screwing the male screw 4 is cut. The skirt 3 has a shape in which the entire diameter gradually increases from the mouth 2 side toward the tip (the side opposite to the side connected to the mouth 2).

The reference spout 1 can be made of a hard material (for example, a hard synthetic resin), but in order to facilitate attachment by thermal fusion to the container body 7 (see FIGS. 2 and 3) described later, It is preferable that at least the skirt 3 can be crushed elastically. When at least the skirt 3 can be crushed elastically, a material having flexibility is used as a constituent material of the reference spout 1. Specifically, for example, a soft synthetic resin such as polyethylene, polypropylene, or polyester can be used.

  Hereinafter, the case where the flexibility which can be crushed elastically at least to the skirt part 3 will be described.

The reference spout 1 can have a single-layer structure of the above-mentioned soft synthetic resin, but can also have a multilayer structure in which a heat-fusible resin layer such as polyethylene or polypropylene is provided as the outermost layer. In particular, the synthetic resin constituting the innermost layer is made of a synthetic resin having a higher melting point than the synthetic resin constituting the outermost layer, so that the hem is attached to the container body 7 (see FIGS. 2 and 3) described later by heat fusion. It becomes easy to prevent heat fusion between the inner surfaces of the portion 3. Further, the same effect can be obtained by adding a particulate inorganic pigment such as titanium oxide to the synthetic resin constituting the innermost layer.

When the reference spout 1 is made of a synthetic resin, it can be manufactured by a blow molding method or an injection molding method, but it is preferable to use a blow molding method because the molding is easy. Moreover, when manufacturing the reference spout 1 by a blow molding method, the MFR (melt flow rate) of polyethylene or polypropylene, which is a preferable constituent material when the skirt 3 is made flexible, is 0.1 to 7.0. It is preferable that it is 1.5 to 2.0.

  As shown in FIG. 2, the skirt 3 is heat-sealed with the tip portion sandwiched between the sheet materials 8 a and 8 b constituting the container body 7. The skirt 3 is gradually reduced in thickness from the mouth 2 side toward the tip in order to make it easy to elastically crush the tip at the time of heat-sealing and to make it easier to return elastically after heat-sealing. Is preferred. Also. It is preferable that the diameter of the end portion of the hem portion 3 on the mouth portion 2 side is larger than the diameter of the end portion of the mouth portion 2 on the hem portion 3 side, and a step 12 is formed therebetween. In this way, the diameter of the skirt 3 can be increased regardless of the diameter of the mouth 2 and the container body 7 can be expanded more, and it is reinforced at the step 12 portion. It becomes easy to obtain a repulsive force for elastically restoring the crushed skirt 3.

Next, the reference spout-equipped container 11 using the reference spout 1 will be described.

As shown in FIGS. 2 and 3, the container body 7 has a bag shape. The container body 7 in the reference spout-equipped container 11 has a self-supporting bag shape formed by sheet materials 8a and 8b constituting the front and back surfaces and a sheet material 8c constituting the bottom surface. The container body 7 can be a four-side sealed bag shape, a three-side sealed bag shape, etc. in addition to this self-supporting bag shape. However, since the entire container body 7 is easy to inflate, a self-supporting bag shape is preferable. A standing pouch is the best. Further, as the sheet materials 8a, 8b, and 8c, for example, a laminate of a heat-fusible resin layer such as polyethylene or polypropylene on an outer layer film such as polyamide, polyester, or polypropylene can be used.

The reference spout 1 is attached to the central portion of the upper edge of the container body 7 with the mouth portion 2 on the outside (outside of the container body 7) and the tip of the hem 3 sandwiched between the sheet materials 8a and 8b. . The tip of the skirt 3 is joined to the sheet material 8a, 8b by a spout seal portion 9 in which the sheet material 8a, 8b and the skirt 3 are heat-sealed. Further, the outer edge portions of the sheet materials 8a and 8b including the right and left of the skirt portion 3 of the reference spout 1 are heat-sealed continuously with the spout seal portion 9 to form the outer edge seal portion 10a, and the sheet material. The overlapping portions of the outer edge portions of 8a and 8b and the sheet material 8c are heat-sealed to form the outer edge seal portion 10b. The sheet materials 8a, 8b, and 8c constitute a self-supporting bag-shaped container body 7 by the spout seal portion 9 and the outer edge seal portions 10a and 10b.

As shown in an enlarged view in FIG. 4, the entire edge X on the skirt 3 side of the outer edge seal portion 10 a formed adjacent to the left and right of the skirt 3 is along the expanded shape of the skirt 3. Inclined inward (inward of the container body 7). Moreover, if the front-end edge Y of the skirt part 3 of the reference spout 1 protrudes inside the container main body 7, it will become easy to dam the taking-out of the contents and to remain. For this reason, as shown in FIG. 4A, the leading edge Y of the skirt 3 is the inner edge of the outer edge seal portion 10a formed adjacent to the left and right of the skirt 3 (the inner edge of the container body 7). 4 coincides with the inner edge extension line Z extending in the opposite direction, or as shown in FIG. Furthermore, when the inner edge of the spout seal portion 9 (the inner edge of the container main body 7) protrudes to the inner side (the inner side of the container main body 7) of the tip edge Y of the skirt 3, the sheet material 8a, 8b is heat-sealed and communication between the skirt 3 and the container body 7 is likely to be hindered. For this reason, it is preferable that the inner edge of the spout seal portion 9 is slightly closer to the outer side (outer side of the container body 7) than the tip edge Y of the skirt portion 3.

In the case of the container 11 with the reference spout using the reference spout 1, as described above, the bottom part 3 of the reference spout 1 joined to the container body 7 has a shape in which the diameter gradually increases toward the tip. . In addition, the entire edge X on the skirt 3 side of the outer edge seal portion 10 a formed adjacent to the right and left of the skirt 3 is inclined inward along the expanded shape of the skirt 3. For this reason, the container main body 7 can be inflated in the extending direction of the shape in which the diameter of the skirt portion 3 is increased, as indicated by a one-dot chain line in FIG. On the other hand, as shown in FIG. 5 (b), the skirt 2 is sandwiched between the sheet materials 8a and 8b even though the skirt 2 gradually increases in diameter from the mouth 2 side toward the tip. If the tip of the portion 3 has a cylindrical shape with a constant diameter, only the extension region of the cylindrical portion with the constant diameter can bulge. That is, in the case of the reference spout-equipped container 11 using the reference spout 1, the container main body 7 can be swollen in a wide range, and the fluidity of the contents in the container main body 7 is increased and taken out from the reference spout 1. It can be made easier.

< The spout of the present invention and the container with the spout of the present invention >
Figure 6 is a sectional view showing an example of the onset Ming spout, 7 I-I sectional view in FIG. 6, FIG. 8 is a plan view showing an example of a container with the onset Ming spout, 9 in FIG. 8 perspective view of the spout with the container of the invention shown, Fig. 10 is an explanatory view of the action of the spout of the present invention, FIG. 11 is a sectional view showing another example of the present onset Ming spout.

As shown in FIG. 6, the spout 101 of the present invention is basically the same as the reference spout 1 already described (see FIG. 1), and has a mouth 2 and a skirt 3 connected to one end of the mouth 2. The mouth portion 2 is formed with a male screw 4 on the outer peripheral surface, and can be opened and closed by a cap 6 in which a female screw 5 for screwing the male screw 4 is cut. It is the same as the reference spout 1 in that the skirt 3 has a shape in which the entire diameter gradually increases from the mouth 2 side toward the tip and has a step 12.

In the spout 101 of the present invention , at least the skirt 3 can be elastically crushed. The constituent material of the spout 101 of the present invention is the same material as that described for the case where the reference spout 1 (see FIG. 1) is provided with at least the skirt 3 to be elastically crushed. Can be used. Moreover, the thickness of the skirt part 3 of the spout of the present invention is not uniform in the circumferential direction, and a thick part 13 having a thickness larger than the thickness of the other part is formed at a position opposite to the radial direction. .

As shown in FIG. 7, the thick portion 13 in the present invention is formed by the circular inner peripheral shape and the outer peripheral shape of the hem portion 3 in the radial direction. On the contrary, the thick part 13 can also be formed by making the inner peripheral shape in the radial cross section of the skirt part 3 elliptical and making the outer peripheral shape circular.

As shown in FIGS. 8 and 9, the spout with the container 111 of the present invention using the spout 101 of the present invention is basically the same as in Reference spout with container 11 described in FIG. 2 and FIG. 3, The preferred material and form of the container body 7 are the same as those of the reference spouted container 11. Moreover, the attachment state of the spout 101 of the present invention to the container body 7 is the same as the attachment state of the reference spout 1 described with reference to FIG. 4, and the wide range of the container body 7 can be expanded in FIG. 5. This is the same as the reference spout 1 described.

By the way, when attaching the spout 101 of the present invention to the container body 7, as shown in FIG. 10, when crushing with the sealing plate 14 for heat-sealing, the skirt 3 of the spout 101 of the present invention is The sheet material 8a is sandwiched between the sheet materials 8a and 8b so that the thick wall portion 13 faces in the extending direction of the outer edge seal portion 10a adjacent to the left and right of the portion 3. For this reason, since the thick portion 13 is positioned in the left-right direction with respect to the crushing direction (vertical direction) by the seal plate 14, that is, on both ends of the crushed hem portion 3, Resist both ends of the skirt 3 against each other. Thereby, when the skirt part 3 is crushed, the upper and lower inner surfaces of the hem part 3 are not strongly pressed against each other, and the upper and lower inner surfaces of the skirt part 3 are prevented from being firmly heat-sealed.

In the skirt part 3 of the spout 101 of the present invention , the thickness of the radial cross section passing through the thick part 13 satisfies the following conditional expressions (1) and (2) in order to effectively obtain the above action. preferable. However, t ₁ is the maximum thickness of the cross section, t ₂ is the minimum thickness in the cross section.

t ₁ = t ₂ × f (1)
1.0 <f ≦ 3.5 (2)

As described above, the thick portion 13 in the spout of the present invention is formed by making one of the outer peripheral shape and the inner peripheral shape in the radial cross section of the skirt portion 3 elliptical and the other circular . Also, the thick portion 13 may be formed over the longitudinal direction the entire length of the skirt portion 3, but by forming the distal end portion which is at least the sheet material 8a, it is sandwiched between 8b thermal fusion It's enough.

It is sectional drawing which shows an example of the reference spout which concerns on the reference example of this invention. It is a top view which shows an example of the container with the reference spout which concerns on the reference example of this invention. It is a perspective view of the container with a reference spout shown by FIG. It is an enlarged plan view which shows the attachment state to the container main body of a reference spout. It is explanatory drawing of an effect | action of a reference spout and a container with a reference spout. The present invention is a cross-sectional view showing an example of engagement away Pauto. It is II sectional drawing in FIG. Is a plan view showing an example of a container with engaging Angeles Pauto the present invention. It is a perspective view of the container with a spout of this invention shown by FIG. It is an explanatory diagram of the operation of the present onset Ming of the spout.

1 Reference spout 2 Mouth part 3 Bottom part 4 Male thread 5 Female thread 6 Cap 7 Container body 8a, 8b Sheet material 9 Spout seal part 10a, 10b Outer edge seal part 11 Reference spout container 12 Step 13 Thick part 14 Seal plate X Edge Y leading edge Z spout with bag spout 111 present invention the inner edge extension line 101 invention

Claims (5)

A cylindrical mouth part, and a tubular hem part that is connected to one end of the mouth part, and at least a tip part is sandwiched between sheet materials constituting the bag-like container body and is heat-sealed, The skirt part can be elastically crushed, and the entire part gradually increases in diameter from the mouth side toward the tip, and the diameter of the end part on the mouth side of the skirt part is the mouth part. Is larger than the diameter of the end on the skirt side, and a step is formed between the two, and one of the outer peripheral shape and the inner peripheral shape in the radial cross section of the skirt portion is elliptical and the other is circular. Therefore, the spout is characterized in that a thick part larger than the thickness of the other part is formed at a position opposite to each other in the radial direction . The spout hem part according to claim 1 is sandwiched between the outer edge parts of the stacked sheet materials with the mouth part outside, and a spout seal part in which each sheet material and the hem part are heat-sealed, Consecutively with the spout seal portion, the sheet material forms a bag-like container body and the container body by the outer edge seal part obtained by heat-sealing the outer edges of the sheet material including the right and left of the skirt. Spouts are attached, and the entire edge on the skirt side of the outer edge seal portion formed adjacent to the left and right of the hem portion is inclined inward along the expanded shape of the hem portion. On the other hand, the spout-equipped container, wherein the thick part of the skirt is positioned in the left-right direction. The leading edge of the skirt matches the inner edge extension line that extends in the opposite direction from the inner edge of the outer edge seal portion formed adjacent to the right and left of the skirt, or enters outside the inner edge extension line. The container with a spout according to claim 2 , wherein the container has a spout. The container with a spout according to claim 2 or 3 , wherein the container body is a self-supporting bag. The container with a spout according to claim 2 or 3 , wherein the container body is a standing pouch.

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