JP5036606B2 - Paper container extraction tool - Google Patents

Description

  The present invention relates to a paper container pouring tool that is liquid-tightly welded or bonded to an opening of a paper container, and more specifically, by making the shape of the pouring tool portion easy to remove from a used paper container at the time of disposal. The present invention relates to a paper container extraction tool that can contribute to separate collection.

Conventionally, paper containers are often used as containers for various dairy products, juices, and alcoholic beverages.
An upper portion of the paper container is provided with a synthetic resin as a liquid content pouring tool in terms of workability and cost. For this reason, regarding disposal after using the paper container, it is discarded as it is and incinerated, or the paper container and the synthetic resin pouring tool are separated using scissors or the like, and the paper container is recovered as a paper resource and recycled. Used or disposed of by either method. It is desirable that the paper container be recycled and reused, but since the synthetic resin pouring tool attached to the paper container is firmly attached by welding or adhesion, it is not easy to separate the paper container. The current situation is that many of them are discarded without being collected as resources. Based on such a situation, the following has been proposed as a paper container pouring tool capable of easily separating a paper container and a synthetic resin pouring tool with only fingers.
Japanese Patent No. 3855179

  As shown in FIG. 10, the paper container dispensing tool according to Patent Document 1 includes a flange portion 53 provided with an attachment portion 52 that is liquid-tightly welded or bonded to the opening 51 of the paper container 50. And having a pour cylinder 54 standing up from the inner peripheral end of the flange 53, and providing a linear weakening portion 55 that can be broken to the pour cylinder 54 from the upper end to the lower end of the pour cylinder 54, A breakable lateral groove 56 is provided at the lower end of the dispensing tube 54. Thereby, the linear weakening part 55 of the extraction | pipe cylinder 54 is fractured | ruptured by a finger | toe, and it can be easily removed from the paper container 50 now by breaking the lateral groove 56. FIG.

However, in the paper container pouring tool of Patent Document 1, the synthetic resin pouring tube 54 can be removed from the paper container 50, but it is very difficult to easily break the weakened portion and the lateral groove with fingers. is there. For example, in the case of a small-diameter dispensing cylinder, it is difficult to put a finger into the dispensing cylinder and it is difficult to pinch it. In addition, considering the ease of breakage, it is necessary to make the weakened part and the thin part of the lateral groove the corresponding thickness, but this time also considers another concern such as the occurrence of pinholes in the thin part by ultrasonic welding. It is very difficult to maintain a balance between the two. Further, all the synthetic resin flange portion 53 remains on the paper container 50 side, and only removing the synthetic resin pouring tube 54 is not sufficient for separation of different materials such as paper and synthetic resin. Therefore, if it remains as it is, it may be difficult to recover and reuse it as a paper resource in a paper container. Further, if ultrasonic welding is used to attach the paper container pouring tool to the opening 51 of the paper container 50, the transverse groove 56 may be deformed, resulting in difficulty in liquid tightness.

Therefore, the object of the present invention is to eliminate the troublesomeness of using tools such as scissors when collecting paper resources in a paper container with a pouring tool, to facilitate the removal and collection of the pouring tool from the paper container, and to separate collection. An object of the present invention is to provide a paper container pouring tool that contributes and has excellent liquid tightness.

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
That is, according to the present invention, a flange portion having a mounting surface that is liquid-tightly welded or bonded to the opening of the paper container is provided on the outer periphery, and a plurality of breakable bridges are provided at the inner peripheral end of the flange portion. A weakly welded pipe body composed of a pedestal part connected via a pour pipe and a pour cylinder placed upright from the upper inner peripheral side of the pedestal part, and a lower end face of the pedestal part and a lower end face of the flange part Or a ring-shaped member that is weakly bonded and liquid-tightly seals the space between the plurality of bridges, and the ring-shaped member is formed of a different material from the extraction cylinder body and the flange portion, A paper container pouring tool characterized in that a plurality of bridges are broken and the ring-shaped member is detached from the pedestal part or the flange part so that at least the pouring cylinder main body can be removed from the paper container. Is provided.

According to the present invention, the area (S1) of the ring-shaped member that is welded or bonded to the lower end surface of the pedestal portion is the area of the welded or bonded surface to the lower end surface of the flange portion (S2).
Larger than (S1> S2), the welding or adhesion between the ring-shaped member and the pedestal is greater than the adhesion between the flange and breaking the plurality of bridges A paper container pouring tool is provided in which the ring-shaped member is detached from the lower end surface of the flange portion, and the pouring cylinder body and the ring-shaped member can be removed from the paper container.

Further, according to the present invention, a wide connecting portion is provided between the inner peripheral end of the flange portion and the lower end portion of the pedestal portion, and the flange portion adjacent to the wide connecting portion is provided from the radially inner peripheral end. A weakened portion that can be broken toward an outer peripheral end is provided, and by breaking the plurality of bridges and breaking the weakened portion, the flange portion is separated from the opening of the paper container, and the paper container There is provided a paper container pouring tool capable of removing the pouring tube main body, the ring-shaped member and the flange portion.

Moreover, according to this invention, the paper container extraction tool which provided the some paper container opening edge part temporary securing nail | claw in the upper outer periphery end of the said base part is provided.

The paper container pouring tool of the present invention is capable of removing at least the pouring tube main body from the paper container and, in addition, removing the pouring tube, if a plurality of bridges are broken by gripping the pouring tube with fingers. A ring-shaped member that is connected to the cylinder body and is weakly welded or weakly bonded to the flange portion can also be removed. Therefore, when collecting a paper container with a dispensing tool as a paper resource, it eliminates the troublesome use of tools such as scissors in particular, facilitates the collection itself, and attaches a flange portion to be welded or bonded to the paper container. Since it can remove almost all of the pouring tool except the paper, there is an effect that it can be reused as much as possible by mixing foreign materials other than paper, and there is no weakening or groove for breaking based on separate collection, so ultrasonic welding to these In this case, there is no fear of deformation, and there is an effect that liquid tightness is not caused.

In addition, the paper container pouring tool of the present invention has a larger welding or adhesive strength between the ring-shaped member and the pedestal portion than the adhesive strength with the flange portion, and therefore breaks the plurality of bridges and The ring-shaped member can be detached from the end surface, and the extraction tube main body and the ring-shaped member can be removed from the paper container. Therefore, in addition to the above-described effects, there is of course an effect that the ring-shaped member can be surely removed from the paper container.

In addition, the paper container pouring tool of the present invention, by gripping the pouring tube with fingers, breaks the plurality of bridges, and further breaks the weakened portion of the flange portion through the wide connecting portion, The flange portion can also be detached from the opening of the paper container, and the extraction tube main body, the ring-shaped member, and the flange portion can be removed from the paper container. Therefore, in addition to the above-described effects, since all of the pouring tool that is welded or bonded to the paper container can be removed, there is an effect that mixing of different materials other than paper can be completely suppressed and reused.

In the paper container dispensing tool of the present invention, the dispensing cylinder is passed through the opening of the paper container from below, and a plurality of paper container opening end temporary pawls on the pedestal are provided over the opening. In addition to the above effects, the paper container pouring tool is used for the paper container because the mounting surface of the flange portion is liquid-tightly welded or bonded to the opening in that state. There exists an effect attached easily to the opening part of a container.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a paper container pouring tool attached to a paper container and showing a cap attached thereto, and FIG. 2 is a perspective view of the paper container pouring tool with the cap removed. 3 is a bottom view of the paper container extraction tool before attaching the ring-shaped member, FIG. 4 is a bottom view of the paper container extraction tool after attaching the ring-shaped member, and FIG. 5 is a paper container extraction tool ( It is a perspective view of the state which attached the cap).
In these drawings, a paper container dispensing tool 1 includes a flange portion 5 provided with an attachment surface 4 that is liquid-tightly welded or bonded to the opening 3 of the paper container 2, and an inner portion of the flange portion 5. A pour cylinder main body 9 comprising a pedestal portion 7 connected to the peripheral end via a plurality of bridges 6 that can be broken, and a pour tube 8 erected from the upper inner peripheral side of the pedestal portion 7; The ring-shaped member 11 is composed of a ring-shaped member 11 that is weakly welded or weakly bonded to the lower end surface of the portion 7 and the lower end surface of the flange portion 5 and liquid-tightly closes the space 10 between the plurality of bridges 6. The tube main body 9 and the flange portion 5 are formed of different materials, break the plurality of bridges 6, and detach the ring-shaped member 11 from the pedestal portion 7 or the flange portion 5 to at least pour out from the paper container 2. The cylinder main body 9 can be removed.

  The paper container 2 can be filled with liquid contents such as various dairy products, juices and liquors, and the mounting surface 4 of the paper container pouring tool 1 is not liquid-tightly welded to the opening 3 thereof. There is no particular limitation on the shape or the like as long as it can be bonded. Since the paper container 2 is filled with the liquid content, at least the inner surface is subjected to a treatment to withstand this, for example, a resin coating.

  As described above, the dispensing cylinder main body 9 is composed of the pedestal portion 7 and the dispensing cylinder 8 that is erected from the upper inner peripheral side of the pedestal portion 7. A screw 20 is engraved so that the cap 21 is detachable. The pouring cylinder 8 is provided with a bottom plate 22, and the bottom plate 22 has a scheduled opening portion 23, which is surrounded by a score 24 and is a part that can be removed by breakage. If the score tear tab 25 provided in the planned opening portion 23 is put on a finger and pulled to break the score 24, the planned opening portion 23 can be removed, that is, opened. The seal after opening is performed by fitting the inner ring 26 provided on the cap 21 with the inner peripheral surface of the upper end portion of the extraction tube 8.

  On the other hand, the upper surface of the flange portion 5 is the mounting surface 4 that is liquid-tightly welded or bonded to the opening 3 of the paper container 2, and the inner peripheral end thereof is pierced through a plurality of bridges 6. It is connected to the pedestal portion 7 of the extraction tube main body 9. Accordingly, a space portion 10 is generated between the plurality of bridges 6, and the space portion 10 is passed between the flange portion 5 and the pedestal portion 7 and is blocked by the ring-shaped member 11 that is weakly welded or weakly bonded. It is. That is, an annular stepped portion 30 is formed on the inner peripheral side of the lower end surface of the flange portion 5, and a wide annular stepped portion 31 is formed on the outer peripheral side of the lower end surface of the pedestal portion 7. In a state where the ring-shaped member 11 is fitted to the annular step portion 31, it is weakly welded or weakly bonded to be liquid-tight.

This paper container pouring tool 1 is produced by the following two-color molding. First, the flange portion 5 and the extraction cylinder main body 9 including a plurality of bridges 6 are molded by, for example, polyethylene resin in a mold, and then the mold is shifted in a space corresponding to the ring-shaped member 11. It is formed by moving, and a resin of a different material in the space, for example, ethylene-vinyl acetate copolymer (EVA)
The ring-shaped member 11 is injection-molded by supplying a softer material than polyethylene resin.

  Note that the ring-shaped member 11 is weakly welded or weakly bonded to the annular step portion 30 of the flange portion 5 and the wide annular step portion 31 of the extraction tube body 9 described above. This is realized by employing a different material called an ethylene-vinyl acetate copolymer (EVA) that is difficult to strongly adhere to a polyethylene resin as a material. Moreover, when attaching the paper container extraction tool 1 to the opening 3 of the paper container 2, it is necessary to firmly bond the paper container 2 and the flange portion 5 by ultrasonic welding. However, the ring-shaped member 11 is made of EVA or the like. The soft material easily absorbs vibrations generated at the time of ultrasonic welding, reduces the deformation of various fragile portions in the paper container extraction tool 1, and has a score 24 provided around the planned opening portion 23. It is possible to prevent the occurrence of pinholes in such a thin portion and maintain liquid tightness. The material of the ring-shaped member 11 is not limited to the above type, and any material can be used as long as it is soft and weakly welded or weakly bonded to the material of the flange portion 5 and the extraction tube body 9. You can use it.

The ring-shaped member 11 manufactured as described above has an area of the lower end surface of the pedestal portion 7 of the dispensing cylinder main body 9, that is, an area of weak welding or weak adhesion surface with the wide annular step portion 31 (S1), The area of the lower end surface of the flange portion 5, that is, the area of the weakly welded or weakly bonded surface with the annular stepped portion 30 (S 2) is set larger (S 1> S 2), and the ring-shaped member 11 and the pedestal portion 7 The welding or adhesive force is greater than the welding or adhesive force with the flange portion 5.

Therefore, at the time of disposal after use of the paper container 2, if the plurality of bridges 6 are broken by gripping the extraction tube 8 with fingers, the ring-shaped member 11 is connected to the base portion 7 of the extraction tube main body 9. Since the welding or adhesive force is large, the ring-shaped member 11 is separated from the annular stepped portion 30 of the flange portion 5 continuously to the side of the dispensing cylinder body 9, and the dispensing cylinder body 9 and the ring-shaped member are removed from the paper container 2. 11 can be reliably removed.

A plurality (four in this example) of paper container opening end temporary fixing claws 32 are provided at the upper outer peripheral end of the base portion 7 of the dispensing tube main body 9. The paper container opening end temporary fixing claw 32 is for facilitating liquid-tight welding or bonding of the paper container dispensing tool 1 to the opening 3 of the paper container 2. That is, the dispensing tube 8 of the paper container dispensing tool 1 is passed through the opening 3 of the paper container 2, and the four paper container opening end temporary fixing claws 32 on the pedestal portion 7 are passed over, The paper container opening end portion temporary fixing claw 32 is temporarily fixed to the opening portion 3, and in this state, the mounting surface 4 of the flange portion 5 is welded or bonded to the opening portion 3 in a liquid-tight manner.

Next, the use of the paper container dispensing tool 1 having the above-described configuration will be described with reference to the drawings.
First, the paper container dispensing tool 1 is temporarily fixed to the opening 3 of the paper container 2 by the above-mentioned paper container opening end temporary fixing claw 32 and ultrasonically welded. The vibration generated at that time is absorbed by adopting a soft material such as EVA for the ring-shaped member 11, and the deformation to the score 24 on the bottom plate 22 of the dispensing cylinder 8 of the paper container dispensing tool 1 is alleviated. Prevents pinholes and keeps liquid-tight. Thereafter, in order to use liquid contents such as various dairy products, juices and liquors stored in the paper container 2 of FIG. 5, the cap 21 attached to the paper container pouring tool 1 is unscrewed. (See Figure 6)
The score tearing tab 25 is pulled with a finger and the score 24 is broken to open the scheduled opening portion 23.
Is removed and opened (see FIG. 7), and the liquid content is poured into another container from the pouring tube 8 of the paper container pouring tool 1.

When the liquid contents in the paper container 2 are completely consumed, the ring-shaped member 11 is connected to the pouring cylinder body 9 and is connected to the flange portion by holding the pouring cylinder 8 with fingers and breaking the plurality of bridges 6. 5
The ring-shaped member 11 can be reliably removed from the paper container 2 together with the dispensing cylinder body 9 (see FIG. 8), and the removed paper container 2 is subjected to paper resource recovery disposal. That's fine.

FIG. 9 shows a paper container extraction tool 1A according to another embodiment of the present invention.
The difference between A and the paper container pouring tool 1 shown in FIGS. 1 to 8 is that a wide connecting portion 33 is provided between the inner peripheral end of the flange portion 5 and the lower end portion of the pedestal portion 7, and this wide connecting portion is provided. The weakened portion 34 that can be broken from the radially inner peripheral end to the outer peripheral end is provided in the flange portion 5 adjacent to the portion 33. Accordingly, the plurality of bridges 6 are broken by gripping the dispensing cylinder 8 with fingers, and the weakened portion 34 of the flange portion 5 is further broken via the wide connecting portion 33. By disengaging from the opening 4 of the paper container 2 and removing all the paper container pouring tool 1 of the pouring cylinder body 9, the ring-shaped member 11 and the flange 5 from the paper container 2, different materials other than paper It is possible to completely suppress the contamination and reuse it well. Since other configurations and operations are the same as those of the paper container pouring tool 1 shown in FIGS. 1 to 8, detailed description thereof will be omitted.

  As mentioned above, although Example 1 and 2 of this invention were demonstrated, it should be understood that a concrete structure is not limited to this and the change in the range which does not deviate from the summary of this invention is possible suitably. .

When the paper container pouring tool of the present invention is recovered as a paper resource in the paper container with the pouring tool,
It has extremely high potential for use in that it can suppress the mixing of synthetic resin other than paper as much as possible and free from the hassle of using tools such as scissors and promote resource recovery itself. .

It is sectional drawing of the state which attached the cap for the paper container extraction tool which shows embodiment shown in Example 1 of this invention to the paper container. It is a perspective view of the extraction tool for paper containers of the state which removed the cap of the extraction tool of FIG. Similarly, it is a back view of the extraction tool for paper containers before attaching a ring-shaped member. Similarly, it is a reverse view of the extraction tool for paper containers after attaching a ring-shaped member. It is a perspective view of the state which attached the paper container extraction tool (with a cap) to the paper container shown in Example 1. FIG. Similarly, it is a perspective view which shows the utilization condition of a paper container. Similarly, it is a perspective view which shows the utilization condition of a paper container. It is a perspective view of the state which removes the extraction tool from the paper container shown in Example 1. It is a perspective view of the extraction tool for paper containers which shows embodiment shown in Example 2. FIG. It is a sectional side view of the extraction tool for paper containers shown by patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A Paper container extraction tool 2, 50 Paper container 3, 51 Opening part 4 Mounting surface 5, 53 Flange part 6 Bridge 7 Base part 8, 54 Extraction cylinder 9 Extraction cylinder main body 10 Space part 11 Ring-shaped member 20 Screw 21 Cap 22 Bottom plate 23 Opening scheduled part 24 Score 25 Score tearing tab 26 Inner ring 30 Annular step part 31 Wide annular step part 32 Paper container opening end part temporary fixing claw 33 Wide connection part 34 Weaking part 52 Mounting part 55 Straight line Weakening 56 transverse groove

Claims (4)

A flange portion provided on the outer periphery with a mounting surface that is liquid-tightly welded or bonded to the opening of the paper container, and a pedestal portion connected to the inner peripheral end of the flange portion via a plurality of breakable bridges And a pouring cylinder body that is erected from the upper inner peripheral side of the pedestal portion, and a plurality of the plurality of the pedestal portion that are weakly welded or weakly bonded to the lower end surface of the pedestal portion and the lower end surface of the flange portion It consists of a ring-shaped member that liquid-tightly seals the space between the bridges,
The ring-shaped member is formed of a different material from the extraction tube main body and the flange portion,
The plurality of bridges are broken, and the ring-shaped member is detached from the pedestal part or the flange part, so that at least the dispensing cylinder main body can be removed from the paper container. Tool. The area (S1) of welding or bonding surface with the lower end surface of the pedestal portion in the ring-shaped member is larger than the area (S2) of welding or bonding surface with the lower end surface of the flange portion (S1> S2).
The ring-shaped member and the pedestal portion are welded or adhered to each other with a greater strength than the adhesive strength with the flange portion, and the plurality of bridges are ruptured and the lower end surface of the flange portion The paper container extraction tool according to claim 1, wherein the extraction member main body and the ring-shaped member can be removed from the paper container by removing the ring-shaped member. A weakened portion that is provided with a wide connecting portion between the inner peripheral end of the flange portion and the lower end portion of the pedestal portion, and that can be broken from the radially inner peripheral end to the outer peripheral end in the flange portion adjacent to the wide connecting portion. The flange portion is separated from the opening of the paper container by breaking the plurality of bridges and breaking the weakened portion, and the dispensing cylinder main body and the ring shape are separated from the paper container. The paper container extraction tool according to claim 1 or 2, wherein the member and the flange portion are removable. The paper container extraction tool according to any one of claims 1 to 3, wherein a plurality of paper container opening end temporary fixing claws are provided at an upper outer peripheral end of the pedestal portion.

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