JPH0740447U - Spouting device for box-shaped containers - Google Patents

Abstract

(57) [Summary] [Purpose] Attach the bottom of the cap body to the pouring hole formed on the side wall of the box container with the cap open by opening the upward direction. When the collar of the spouting tube is inserted first and fixed to the inner surface of the box-shaped container by heat-sealing, the spouting tool is reliably prevented from falling off the box-shaped container before heat-sealing. [Structure] The shape of the pouring hole 4 is formed into a perfect circle, while the shape of the outer periphery of the cap body 6 is formed into a non-circular shape. Are formed so that the outer peripheral edge of the cap body 6 partially overlaps the inner peripheral edge of the pouring hole 4 along the circumferential direction when viewed from the axial direction of the cap body 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid packaging box-shaped container made of waterproof paper with a synthetic resin film laminated on both front and back surfaces, or a liquid packaging box-shaped container made of synthetic resin. It concerns the spout device.

[0002]

[Prior art]

 As a spouting device in a paper box container for packaging liquids such as alcoholic beverages, as shown in FIG. 10 of JP-B-60-37296 as a prior art and as shown in FIG. 10, an inclined side wall of the box container 10 is provided. 10 a is provided with a perfect circular pouring hole 11, while a pouring tool 12 is attached to the pouring hole 11 of the box-shaped container 10 at one end of the pouring tube 13 from the pouring hole 11. Also comprises a spout 13 having a large-diameter collar 13a and a bottomed cylindrical cap body 14 screwed to the spout cylinder 13 from the other end. The spout 12 is provided with a cap body. 14 is inserted into the pouring hole 11 from the inside of the box-shaped container 10 so that it is exposed to the outside of the box-shaped container 10, and the collar 13a of the pouring cylinder 13 is heat-sealed to the inner surface of the box-shaped container 10. Some have a fixed structure.

By the way, when the spout 13 is attached to the box-shaped container 10, the collar 13 a of the spout 13 is firmly fixed to the box-shaped container 10 by heat fusion. While the pouring tool 12 is inserted into the container, the brim 13a of the pouring cylinder 13 and the inner surface of the box-shaped container 10 are preheated while being moved a certain distance. In that case, it is necessary to prevent the spouting tool 12 from slipping out of the spouting hole 11 in the preheating step. As a means for this purpose, in the prior art described above, the spouting tool 12 projects radially outward at the opening edge of the cap body 14. Protrusions 15 are provided, and when the cap body 14 is inserted into the pouring hole 11, the projection 15 is positioned outside the box-shaped container 10 by slightly elastically deforming the inner peripheral edge of the pouring hole 11. It is described that the flange 13a of the outlet cylinder 13 and the projection 15 of the cap body 14 sandwich the inner peripheral edge of the pouring hole 11.

[0004]

[Problems to be solved by the device]

 However, there is only a small gap between the end surface of the opening of the cap body 14 and the outer surface of the box-shaped container 10, in other words, the flange 13a of the spout 13 and the end surface of the opening of the cap body 14. Since the dimension between the two is only slightly larger than the thickness dimension of the side wall of the box-shaped container 10, the protrusion 15 is simply provided on the opening edge of the cap body 14 as in this prior art. With the structure which is not too much, even if the cap body 14 is inserted into the pouring hole 11 of the box-shaped container 10 and the collar 13a comes into contact with the inner surface of the box-shaped container 10, the inner peripheral edge of the pouring hole 11 is box-shaped. In some cases, the protrusion 15 may not be pulled out to the outside of the inner peripheral edge of the pouring hole 11 while the knitted state is kept toward the outer side of the shaped container 10. Therefore, the cap body 14 may not be pulled out. After inserting into the Pouring cylinder 13 is found by moving back toward the interior of the box-shaped container 10 at the force, Note Daegu 12 there is a problem that there is a possibility that slipping off the interior of the box-shaped container 10.

An object of the present invention is to provide a spouting device for a box-shaped container that solves this problem.

[0006]

[Means for Solving the Problems]

 In order to achieve this object, the present invention provides a pouring hole in a side wall of a box-shaped container which is filled with liquid in an upwardly opened state and then sealed at an opening at an upper end thereof. Insert a spout made of a synthetic resin spout having a collar at one end into a tap hole and a cylindrical cap with a bottom from the other end. By inserting the collar of the spout barrel into contact with the inner surface of the box-shaped container and exposing the cap body to the outside of the box-shaped container, the collar of the spout barrel is heat-sealed. In a spout device fixed to the inner surface of a box-shaped container, the shape of the outer periphery of the cap body and the shape of the pouring hole in the box-shaped container when viewed from the axial direction of the cap body The outer peripheral edge and the inner peripheral edge of the pouring hole have different shapes so as to partially overlap each other along the circumferential direction. And a configuration that.

[0007]

[Operation and effect of the device]

 With this configuration, when the cap body is inserted into the pouring hole from the inside of the box-shaped container in the liquid packaging process, in most cases, the inner peripheral edge of the pouring hole in the box-shaped container is After elastically deforming so that it extends toward the outside of the box-shaped container, the cap body is completely inserted into the pouring hole, and the brim of the pouring tube comes into close contact with the inner surface of the box-shaped container. The opening edge of the box is located outside the inner peripheral edge of the pouring hole in the box-shaped container, and the inner peripheral edge of the pouring hole in the box-shaped container returns to its original flat state and is deformed. It will be in a state of being sandwiched between the end surface of the spout and the collar of the spout tube, and even if the cap body is rarely completely inserted into the spout hole and cut off completely, the inner peripheral surface of the spout hole is Keeping in contact with the outer peripheral surface, the inner peripheral edge of the box-shaped container moves toward the outside of the box-shaped container. It may remain deformed to state.

However, the present invention utilizes the difference between the shape of the outer periphery of the cap body and the shape of the pouring hole to lock the cap body at the inner peripheral edge of the pouring hole. Since the contact relationship between the cap body and the inner peripheral edge of the pouring hole can be maintained over a long range along the axial direction of the cap body, even though the cap body is completely inserted into the pouring hole, Even if the inner peripheral edge of the pouring hole remains curved so as to face the outside of the box-shaped container, the elastic restoring force of the inner peripheral edge of the pouring hole in the box-shaped container remains. As a result, the state in which the cap body is held by the inner peripheral edge of the pouring hole is maintained, so that the pouring tool can be reliably prevented from falling out of the pouring hole.

As described above, according to the present invention, it is possible to reliably prevent the spout from falling off from the box-shaped container during the packaging process, so that the spout cannot be attached to the box-shaped container and packaging failure occurs. Has the effect of reliably preventing

[0010]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings (FIGS. 1 to 9). 1 to 4 show a first embodiment, and in this embodiment, reference numeral 1 is a box-shaped container formed in an upward opening shape with a paper laminated with a synthetic resin film on both front and back surfaces. Each of the reference numerals 2 denotes a pouring tool, and a fold line 3 for sealing the box-shaped container 1 is formed on the upper part of the box-shaped container 1, and the fold line 3 is formed after filling the inside with the liquid. It is formed into a roof shape by bending along it, and the upper end 1a is overlapped with each other and fixed to each other by heat fusion so as to be sealed, and the side wall 1b of the box-shaped container 1 is hermetically sealed. A pouring hole 4 formed of a perfect circle having a diameter D1 is formed at a portion corresponding to the inclined surface.

The spouting tool 2 is formed with a screw thread on the outer circumference, and at one end, a spout 5 a having a collar 5 a having a diameter larger than that of the spouting hole 4 is connected, and the spouting tube 5 has other parts. It is composed of a bottomed tubular cap body 6 screwed from an end, and a sealing film 7 such as an aluminum foil is removably attached to the other end of the dispensing cylinder 5, and The collar 5a of 5 is provided with a fitting portion 5b that fits tightly into the pouring hole 4 of the box-shaped container 1.

The cap body 6 is formed by forming radially outwardly bulged portions 6a so as to extend substantially the entire length along the axial direction on the outer circumferences of the two portions sandwiching the axial center. Is formed into a non-circular shape, and the portion of the outer peripheral surface of the cap body 6 excluding the bulging portion 6a is an arc having a radius of curvature that is the same as or slightly smaller than the radius of the pouring hole 4 described above. And the gap dimension D2 between the outer surfaces of both bulging portions 6a (that is, the diameter of the circumscribing circle of the cap body 6) is larger than the diameter of the pouring hole 4, thereby forming the cap body. When viewed from the axial direction of 6, the cap body 6 is configured to overlap the inner peripheral edge of the pouring hole 4 only at the bulging portion 6a.

In the above-described configuration, in the packaging process of liquid such as alcoholic beverages, the dispensing cylinder 5 with the cap body 6 screwed onto the dispensing hole 4 of the box-shaped container 1 with the bottom surface of the cap body 6 first. When it is inserted from the inside, the inner peripheral edge of the pouring hole 4 is deformed so as to bend toward the outside of the box-shaped container 1 by the pressing action of the bulging portion 6a of the cap body 6. In most cases, the cap body 6 is completely inserted into the pouring hole 4 and the collar 5a of the pouring cylinder 5 contacts the inner surface of the box-shaped container 1, and at the same time, as shown in FIG. 3 (b). The cap body 6 comes out of the pouring hole 4, and the inner peripheral edge of the pouring hole 4 is sandwiched between the collar 5a of the pouring cylinder 5 and the end face of the cap body 6, and in rare cases, the box. Due to variations in the thickness and material of the side wall 1b of the shaped container 1, or variations in the gap between the collar 5a of the spout barrel 5 and the opening end surface of the cap body 6, the cap body 6 is placed in the pouring hole 4. Even when the collar 5a comes into contact with the inner surface of the box-shaped container 1 after being completely inserted, the inner peripheral surface of the pouring hole 4 remains in contact with the bulging portion 6a of the cap body 6, and the cap body 6 is In some cases, it may not come out of the pouring hole 4.

However, even if the cap body 6 does not come out of the pouring hole 4, the bulging portion 6 a of the cap body 6 extends over substantially the entire length of the cap body 6, so that the pouring hole 4 Since the state in which the cap body 6 is held by the inner peripheral edge of the box is maintained, the pouring tool 2 is attached to the box-shaped container 1 before the flange 5a of the pouring tube 5 is fixed to the inner surface of the box-shaped container 1 by heat fusion. Therefore, the spouting tool 2 can be reliably transferred to the heat fusion step with the spout 2 attached to the box-shaped container 1.

5 to 9 show the cap body 6 so that the outer peripheral edge of the cap body 6 and the inner peripheral edge of the pouring hole 4 partially overlap with each other when viewed in the axial direction of the cap body 6. It shows another embodiment showing a combination of the shape of the outer periphery and the shape of the pouring hole 4. Among them, in the second embodiment shown in FIG. 5, when the spouting hole 4 is formed in a perfect circle having a diameter D1 as described above, the outer periphery of the cap body 6 is formed in an elliptical shape, and the cap body 6 is formed into an elliptical shape. The minor diameter D2 of the cap body 6 is set to be smaller than or the same as the diameter D1 of the pouring hole 4, and the major diameter D3 of the cap body 6 is set to be larger than the diameter D1 of the pouring hole 4. It was done.

In the third embodiment shown in FIG. 6, when the pouring hole 4 is formed in a perfect circle having a diameter D1, the shape of the outer circumference of the cap body 6 is a regular polygon such as a regular dodecagon. The regular polygon is formed such that the diameter of the inscribed circle is smaller than or the same as the diameter of the pouring hole 4, and the diameter of the circumscribed circle is larger than the diameter D1 of the pouring hole 4. It is set so that In the fourth embodiment shown in FIG. 7, the shape of the pouring hole 4 is formed into an ellipse as shown in (a), while the cap body 6 is formed into a perfect circle having a diameter D3 as shown in (b). In this case, the minor diameter D5 of the pouring hole 4 is formed to be larger than or equal to the diameter D4 of the cap body 6, and the major diameter D6 of the pouring hole 4 is larger than the diameter D4 of the cap body 6. It is set to a small size.

In the fifth embodiment shown in FIG. 8, the shape of the pouring hole 4 is formed into a regular polygon such as a regular dodecagon as shown in FIG. As shown in (b), the outer diameter D4 of the cap body 6 is equal to or larger than the diameter D7 of the inscribed circle of the pouring hole 4 and is a circumscribed circle. The diameter is set to be smaller than the diameter D8.

In the sixth embodiment shown in FIG. 9, the shape of the outer periphery of the cap body 6 is formed into a perfect circle as shown in (b), while the shape of the pouring hole 4 is shown in (a). As described above, when an appropriate number of straight line portions 4a are formed on the inner peripheral edge of the true circular hole, the outer diameter D4 of the cap body 4 is larger than the diameter of the inscribed circle of the pouring hole 4, and The diameter was set smaller than the diameter.

In the present invention, the shape of the pouring hole and the shape of the cap body for allowing the outer peripheral edge of the cap body and the inner peripheral edge of the pouring hole to partially overlap each other when viewed in the axial direction of the cap body. It goes without saying that the combination with and is not limited to the above-exemplified embodiments, and various other forms can be adopted. Further, the shape of the outer circumference of the cap body may be different along the axial direction. In that case, the "shape of the outer circumference of the cap body" in the scope of claims for utility model registration means the portion of the cap body near the opening end surface. Therefore, in the case of the first embodiment, for example, the bulging portion 6a is formed at a portion near the opening end surface of the cap body 6 so as to extend for an appropriate length, and Of these, only the portion close to the opening end face may overlap the inner peripheral edge of the pouring hole 4.

Further, it goes without saying that the present invention can be applied not only to a paper container but also to a synthetic resin container or a metal container.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a first embodiment.

FIG. 2 is a front view of a pouring tool.

FIG. 3 is a cross-sectional view showing a mounted state.

FIG. 4 is a partially cutaway side view in a packaged state.

FIG. 5 is a sectional view of a pouring tool showing a second embodiment.

FIG. 6 is a sectional view of a pouring tool showing a third embodiment.

FIG. 7 is a diagram showing a fourth embodiment.

FIG. 8 is a diagram showing a fifth embodiment.

FIG. 9 is a diagram showing a sixth embodiment.

FIG. 10 is a diagram showing a conventional technique.

[Explanation of symbols]

 1 box-shaped container 2 spouting tool 4 spouting hole 5 spouting tube 5a collar 6 cap body 6a bulging part

Claims (1)

[Scope of utility model registration request] 1. A pouring hole is formed in a side wall of a box-shaped container which is filled with a liquid in a state of opening upward and is then sealed at an opening at an upper end thereof. To a spout made of a synthetic resin spout equipped with a collar at the other end and fitted with a bottomed tubular cap body, by inserting the bottom face of the cap body first, The collar of the spouting cylinder is brought into contact with the inner surface of the box-shaped container, the cap body is exposed to the outside of the box-shaped container, and the collar of the spouting tube is fixed to the inner surface of the box-shaped container by heat fusion. In such a spout device, the shape of the outer periphery of the cap body and the shape of the pouring hole in the box-shaped container, when viewed from the axial direction of the cap body, the outer peripheral edge of the cap body and the pouring hole Box shape characterized by being formed in different shapes so that the inner peripheral edge partially overlaps along the circumferential direction Spout device in the vessel.