JPH0811873A - Pouring device of container - Google Patents

Abstract

PURPOSE:To contrive the reduction of manufacturing cost without impairing the opening easiness in a pouring device for attachment to a paper-made, box- like container. CONSTITUTION:An opening body 10 for breaking through a sealing film 9 is integrally connected to a pouring cylinder 4 formed on a pouring device 2 for attachment to a container via a weakened part 11 in an outwardly projecting manner. A cap 3 is screwed into the pouring cylinder 4 to break off the weakened part 11. By breaking off the weakened part 11 in this way, it becomes easy for the opening body 10 to be forced in to break through the film 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spout device suitable for a paper box container for packaging alcoholic beverages such as sake and soft drinks.

[0002]

2. Description of the Related Art A spouting device for a box-shaped container made of paper generally comprises a spouting body made of synthetic resin attached to the mouth of the container,
It is provided with a cap that is detachably screwed into a male threaded dispensing cylinder formed in the spout body, while closing the mouth of the container or the root of the dispensing cylinder with a film, while in the dispensing cylinder,
An unsealing body formed separately from the spout body is arranged, and a person pushes the unsealing body with a finger to break the film to open the unsealing body (for example, Japanese Utility Model Publication No. 58- 37828, Japanese Utility Model Publication No. 4-1056
No.

[0003]

However, in the conventional spout device, since the opening body is manufactured separately from the spout body, the manufacturing process and the assembling process are complicated and the manufacturing cost is high. There was a problem. The present invention aims to solve this problem.

[0004]

In order to achieve this object, the spouting device according to the invention of claim 1 is "a synthetic resin spouting body attached to the mouth of a container and formed in this spouting body. In a spout device comprising a cap that detachably attaches to a spout barrel with a male screw, and the mouth of the container or the vicinity of the root of the spout barrel is covered with a film, in the spout barrel of the spout body, A part of the unsealing body that protrudes to the outside of the pouring cylinder so that it can be pushed into the pouring cylinder and is integrally connected via a weakened portion such as a bridge or thin wall, and that faces the film in the unsealing body. In addition, the weakened portion is broken and the unsealed body is pushed into the spout tube to form a tooth portion that pierces the film. "

The spouting device of the invention according to claim 2 is the spout device according to claim 1, wherein "the opening body and the cap are
The cap is screwed into the spout barrel so that the opening body is pressed toward the inside of the spout barrel. " Further, the spout device of the invention according to claim 3 is the spout device according to claim 2, wherein the content of the opening body can be poured out from the container while the opening body is mounted in the pouring tube. And the like, and the one or both of the outer peripheral portion of the unsealing body and the inner peripheral portion of the spout barrel is provided with a locking means for holding the unsealed body in a state of being completely pushed into the spout barrel. It was made into the composition.

Further, the spout device of the invention according to claim 4 is: "A synthetic resin spout body attached to the mouth of a container, and a spout barrel with a male screw formed on the spout body so as to be detachably screwed. In a spout device comprising a cap to be worn and closing the mouth of the container or the vicinity of the root of the spout cylinder with a film, a weakened weak portion such as a bridge is formed in the spout cylinder of the spout body. The unsealed body integrally connected to the film is arranged so that one end of the unsealed body is in contact with the film and the other end is projected to the outside of the spout tube. The film is irremovably attached to the film so that the film is torn by pulling it outside, and a tab is formed at the other end of the opening body for pulling the opening body outward. "

In the constructions of claims 1 to 3, the opening body must be made of a material that is hard to some extent so that the film can be pierced by the opening body. Therefore, the spout body is made of high-density polyethylene. It is desirable to use such a hard or relatively hard synthetic resin. Still further, the spout device of the invention according to claim 5 is the "claim 4", wherein "the unsealing body and the cap are pressed into the spout cylinder by screwing the cap into the spout cylinder. So that they are related ".

[0008]

In the structure of claim 1, the unsealing body can be opened by pushing the unsealing body into the pouring tube and piercing the film with the teeth of the unsealing body. Since the unsealing body is integrally connected to the spout cylinder, the spout device needs only two parts, the spout body and the cap, and therefore,
Compared to the conventional spouting device for box-shaped containers, which has three parts, the manufacturing process can be eliminated, and as a result, the manufacturing cost can be significantly reduced.

According to the second aspect of the invention, the unsealed body is pushed into the spout barrel by screwing the cap into the spout barrel, thereby breaking the weakened portion where the unsealed body and the spout barrel are connected. Or because it can be significantly weakened, claim 1
In addition to the above effect, there is an effect that the opening body can be pushed in extremely easily. Further, according to the configuration of claim 3, the contents can be poured out by a one-touch operation of merely pushing the unsealing body into the dispensing cylinder, and the unsealing body is pushed into the dispensing cylinder. Since it is held, the opening body does not interfere with the pouring of the contents. Therefore, with the configuration of claim 3, in addition to the effects of claim 1 and claim 2, there is an effect that the opening operation and the pouring of the contents can be performed more easily.

On the other hand, in the structure of claim 4, the tab of the unsealing body is pinched, the unsealing body is pulled to the outside, and the film is unsealed along the joint portion of the unsealing body. In this case, since the unsealed body is formed integrally with the spout cylinder, the manufacturing process can be simplified and the cost can be reduced. Therefore, the configuration of claim 4 also has the effect of reducing the manufacturing cost.

According to the present invention, the weakened portion connecting the unsealing body and the spout is broken or significantly weakened by screwing the cap into the spout cylinder, so that the unsealing can be easily performed. .

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment in which the present invention is applied to a spouting device for a box-shaped paper container will be described with reference to the drawings. 1 to 6 show a first embodiment, and in the drawings, reference numeral 1
The spouting device 1 indicated by is provided with a spouting main body 2 and a cap 3. The spout body 2 is provided with a spout barrel 4 with a male screw 4a with which the cap 3 is screwed, and a flange 6 is integrally connected to a base portion of the spout barrel 4 via a large-diameter tubular portion 5. are doing. A female screw 5a is formed on the inner peripheral surface of the large-diameter cylindrical portion 5, and a pad member 8 having a convex cross-section is screwed into the female screw 5a from the inside of the container A to form a flange 6 and a pad member 8.
The opening edge of the container A is sandwiched between and.

A container 9 is sealed by attaching a film 9 of aluminum foil or the like to the base of the spout 4 of the spout body 2 by an appropriate means such as heat sealing. A tubular opening body 10 protruding outward in a concentric posture with the pouring tube 4 is integrally connected to the opening edge of the pouring tube 4 via a thin weakened portion 11. At one end of the unsealing body 10 facing the film 9, a toothed portion 10a having a pointed three-sagittal shape facing the film 9 when viewed along the axis of the spouting cylinder 4 It is integrally formed so as to be close to the film 9.

The weakened portion 1 of the outer peripheral surface of the unsealing body 10
An annular outward projection 12 forming a part of the locking means is formed at a portion adjacent to 1, while an annular inward projection as an example of the locking means is formed on the inner peripheral surface of the base of the spout tube 4. 13 is projected inward. The outer diameter D1 of the outward protrusion 12 is larger than the inner diameter D2 of the inward protrusion 13, and
The inner diameter is set to be approximately the same as the inner diameter D3.

Further, at the other end of the unsealing body 10 exposed to the outside of the spout barrel 4, a flange portion 10b having a diameter larger than the inner diameter of the spout barrel 4 and smaller than the outer diameter of the spout barrel 4. Is formed.
The interval dimension L1 between the flange 10b and the first protrusion 12 in the unsealing body 10 is set to be equal to or slightly larger than the height dimension H of the spout barrel 4. A step portion 3a is formed on the inner peripheral surface of the cap 3 so as to be in contact with the end surface of the spout tube 4 (the step portion 3a of the cap 3 is brought into contact with the end surface of the spout tube 4, so that the opening body is opened). The flange 10b of 10 is formed to have a smaller diameter than the outer diameter of the spout cylinder 4). In this case, a gap is set between the opening edge of the cap 3 and the large-diameter portion of the spout main body 2 in a state where the step portion 3a is in contact with the end surface of the spout cylinder 4.

Further, the head 3b of the cap 3 is formed in a conical shape, and the length dimension L2 from the root of the head 3b to the opening edge is determined by the dimension L at which the unsealing body 10 projects from the pouring tube 4.
The size is set smaller than 3. In the above configuration, the spout body 2 with the opening body 10 and the cap 3 are
Separately manufactured by an injection molding method using a synthetic resin as a material, a film 9 is attached to the spout body 2 by heat sealing or the like, and then a cap 3 is poured as shown by a solid line in FIG. It is screwed onto the spout 4 of the outlet body 2 and used in this state for packaging.

In the process of packaging the contents, as shown by the alternate long and short dash line in FIG. 6, the spout body 2 is applied from the outside to the mouth of the container A which is opened upward, and in that state, the container A The pad member 8 arranged inside is screwed to the spout body 2, and in that state, the flange 6 of the spout body 2 and the pad member 8 are integrally fixed to the opening of the container A by a high frequency sealing method or the like. Then, the contents are filled in the container A and then the upper end of the container A is sealed in a state as shown in FIG.

Needless to say, the container 1
Synthetic resin film is laminated on both front and back sides. Further, as shown in FIG. 6, when the opening body 10 is pushed into the pouring tube 4 after removing the cap 3, the opening body 10
The film 9 is pierced by the tooth portion 10a of the above and is opened.
Thus, the head 3b of the cap 3 is formed in a conical shape, and the length dimension L2 from the root of the head 3b to the opening edge is
Since the unsealing body 10 is set to have a size smaller than the size L3 protruding from the pouring tube 4, the unsealing body 10 is set to the pouring tube 4 in the process of screwing the cap 3 into the pouring tube 4 of the spout body 2. It is pressed toward, so that the weakened portion 11 breaks or becomes extremely easily broken. Therefore,
It is extremely easy for the consumer to push the opening body 10 into the pouring tube 3 to open the opening body. In other words, although the unsealing body 10 is formed integrally with the spout body 2, the easiness of unsealing is not impaired.

Then, the flange 10 in the opening body 10
Since the interval dimension L1 between the b and the outward projection 12 is set to be equal to or slightly larger than the height dimension H of the spout cylinder 4, when the unsealing body 10 is pushed, the unsealing body 10 becomes elastic. The outward projection 12 becomes an inward projection 13 due to deformation against it.
After passing through, the opening body 10 is held in a pressed state. Therefore, the opening body 10 does not interfere with the pouring of the contents.

The film 9 may be joined to the contact member 8. In the above-described embodiment, the outward protrusion 12 is formed on the opening body 10 as the locking means separately from the weakened portion 11. However, as shown as the second embodiment in FIG.
1 is formed into a chevron shape in cross section, and the weakened portion 11 has an opening 1
By setting so as to remain on the outer peripheral surface of 0, the weakened portion 1
1 may also be used as the locking means. Further, in the second embodiment, the weakened portion 11 is intermittently formed along the circumferential direction.

The outward projection 12 and the inward projection 1
3 may also be formed intermittently. FIG. 8 shows a third embodiment in which the front end of the unsealing body 10 is formed in the shape of a triple arrow, and the tooth portion 10a is formed by sharpening the radially outer portion of each plate body. With this configuration, the film 9 is pushed open by pushing in the unsealing body 10 and is in a state of being easily cut, so that there is an advantage that opening is easier.

In the third embodiment, the portions of each plate body in the unsealing body 10 are connected to the opening edge of the dispensing cylinder 4 by the bridge-shaped weakening portion 11. In the third embodiment, the protruding height dimension h of the tooth portion 10a in each plate body may be different from each other. FIG. 9 shows the fourth embodiment, and FIG. 9 shows a state in which the cylindrical opening body 10 is developed. When the toothed portion 10a is formed by forming the toothed portion 10a at one end of the unsealing body 10, the height dimension of each toothed portion 10a is made different in height along the circumferential direction.

FIG. 10 shows a fifth embodiment showing another example of the locking means. In this embodiment, the outward projection 12 is formed at the mid-height portion of the outer peripheral surface of the unsealing body 10. ,
An annular groove 14 into which the outward projection 12 is fitted is formed on the inner peripheral surface of the dispensing cylinder 4 in a state where the unsealing body 10 is pushed into the dispensing cylinder 4 completely. In this case, the outward projection 12 may be formed in an annular shape or may be formed intermittently along the circumferential direction.

In this embodiment, the spout body 1 is joined to the surface of the container A without using the contact member 8, and the film 9 for closing the opening A1 of the container 1 is provided on the inner surface of the container A. The stretched film is used. As the locking means, only the outward protrusion 12 may be provided on the opening body 10 and the outward protrusion 12 may be stretched in the pouring tube 4 by the elastic force of the opening body 10.

FIG. 11 shows a sixth embodiment showing another form of the unsealing body 10. In this embodiment, a plate extending radially is separated from one another at one end of the unsealing body 10 formed in a cylindrical shape. The tooth portions 10a are formed by connecting them in a state and sharpening the tip of this plate body. 12 to 13
Shown in is a seventh embodiment corresponding to the fourth aspect.

In this embodiment, the unsealing body 10 is formed in an arc shape in a circumferentially discontinuous state, one end surface of the unsealing body 10 is firmly fixed to the film 9, and the other unsealing body 10 is A pull ring 15 as an example of a tab is connected to the edge of the end along the circumferential direction in a state of being exposed to the outside of the dispensing tube 4, and the unsealing body 10 is further connected to the opening edge of the dispensing tube 4. Are connected to each other via a plurality of bridge-shaped weakening portions 11.

Further, in this embodiment, when the cap 3 is screwed into the pouring tube 4, the step portion 3a formed on the inner peripheral surface of the cap 3 comes into contact with the other end surface 10c of the unsealing body 10 and the weakened portion 1 is formed.
1 is set to break or significantly weaken. In this embodiment, when the opening body 10 is pressed toward the inside of the spout tube 4 by screwing the cap 3, the pressing force acts on the film 9, but the moving dimension of the opening body 10 is small.
The cap 3 is absorbed by the elongation of the film 9.
There is no unforeseen situation in which the film 9 is torn when screwed in.

On the other hand, when the pull ring 15 is pulled outward after the cap 3 is removed, a pulling force acts on the film 9 via the opening body 10 and the film 9 is cut along the joint portion of the opening body 9. Be done. In this case, since the unsealing body 10 is discontinuous along the circumferential direction and the pre-ring 15 is connected to the end portion of the unsealing body 10 along the circumferential direction, the pulling force is first increased. 1
0, since it acts intensively on the base of the pull ring, the tearing of the film 9 can be performed with a light force, and the pulling of the pull ring 15 causes the opening body 10 to be continuously separated from the film 9. The tearing of the film 9 can be performed with a light force.

Although the above embodiment is applied to a paper box-shaped container, the present invention can be applied to other types of containers.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a spout device.

FIG. 2 is a perspective view in a state of being attached to a container.

3A is a vertical sectional front view in a separated state, and FIG. 3B is an enlarged view of a main part of FIG.

FIG. 4 is a bottom view taken along the line IV-IV in FIG.

FIG. 5 is a view showing a state in which the cap is screwed in.

FIG. 6 is a cross-sectional view showing an opened state.

FIG. 7 (a) is a vertical sectional front view of an essential part of the second embodiment, and FIG.
FIG. 7B is a sectional view taken along line bb of FIG.

FIG. 8A is a vertical sectional front view of an essential part of the third embodiment, and FIG.
FIG. 7B is a sectional view taken along line bb of FIG.

FIG. 9 is a development view of the unsealing body according to the fourth embodiment.

FIG. 10 is a vertical sectional front view of a fifth embodiment.

FIG. 11A is a bottom view of the unsealing body according to the sixth embodiment,
(B) is a bb sectional view of (a).

FIG. 12 is a vertical sectional front view of a seventh embodiment.

13A is a sectional view taken along the line aa of FIG. 12, and FIG. 13B is a sectional view taken along the line bb of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 spout device 2 spout main body 3 cap 4 spout cylinder 9 film 10 opening body 10a tooth part 10b collar part 11 weakening part 12 outward projection 13 inward projection 14 annular groove 15 pull ring as an example of tab

Claims (5)

[Claims] 1. A container provided with a spout body made of synthetic resin, which is attached to the mouth of the container, and a cap which is detachably screwed to a spout cylinder with a male screw formed on the body of the spout. In a spouting device in which the vicinity of the root of the spouting tube is covered with a film, in the spouting tube of the spouting body, an opening body protruding outside the spouting tube so that it can be pushed into the spouting tube, bridge-shaped or It is integrally connected through a weakened portion such as a thin wall, and the weakened portion is ruptured at a portion of the opening body facing the film, and the opening body is pushed into the pouring tube to break through the film. And a tooth portion formed as described above. 2. The "opening body" according to claim 1, wherein the opening body and the cap are associated with each other such that the opening body is pressed toward the inside of the dispensing tube by screwing the cap into the dispensing tube. Characteristic container spout device. 3. The "opening body" according to claim 2, wherein the opening body is formed in a tubular shape or the like so that the contents can be poured out from the container while the opening body is still mounted in the pouring cylinder. One or both of the outer peripheral portion and the inner peripheral portion of the pouring tube is provided with locking means for holding the unsealed body in a state of being fully pushed into the pouring tube. Exit device. 4. A container provided with a spout body made of synthetic resin, which is attached to the mouth of the container, and a cap which is detachably screwed to a spout barrel with a male screw formed in the body of the spout, and the mouth of the container or In a spouting device in which the vicinity of the root of the spouting tube is covered with a film, in the spouting tube of the spouting body, an unsealed body integrally connected via a weakened weakening portion such as a bridge, The film is torn by pulling the one end face of this unsealing body to the outside of the pouring tube, with the one end abutting the film and the other end projecting to the outside of the pouring tube. A non-peelable sticker to the film so that a tab for pulling the open body outward is formed at the other end of the open body.
A container spouting device. 5. The "opening body" according to claim 4, wherein the opening body and the cap are associated so that the opening body is pressed into the dispensing cylinder by screwing the cap into the dispensing cylinder. A spouting device for containers.