TW202202121A - container - Google Patents

Abstract

To provide a container that has excellent openability and that is environmentally friendly. This container is provided with: a main body part that is constituted from a resin material and in which content is accommodated; a cylindrical part that is constituted from a resin material and that has an inner end and an outer end, the cylindrical part communicating with the main body part on the inner end side; and a weld part that is integrally constituted from the same resin material as the cylindrical part and that is continuous from the outer end of the cylindrical part, the weld part being squashed flat so as to close the outer end of the cylindrical part, and welded. The cylindrical part has a breaking part. The breaking part breaks and thereby forms an extraction port for extracting the content from the main body part. In the cylindrical part, at least the portion on the outer end side relative to the breaking part is constituted so as to be hollow.

Description

container

The present invention relates to a container, in particular to a container which is opened by breaking a portion thereof.

As a disposable container which is once opened and the contents are taken out and then discarded, there is a type of disposable container having a lid (refer to Patent Document 1, etc.). In addition, as another type of disposable container, there is also a disposable container that is opened by breaking a part of the container like an ampoule (refer to Patent Document 2). [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2015-193983 [Patent Document 2] International Publication No. 2018/190422 Pamphlet

[The problem to be solved by the invention]

In the case of a disposable container with a lid, the number of parts increases, and when the lid also contains a resin material in addition to the container body, the amount of resin material used increases, resulting in a large environmental load. . In addition, in the case of a disposable container of the type that is opened by breaking a part of the container, at least the removed portion cut off by the breaking often contains a resin material. At this time, when the resin-made removal part is too soft, the force required for fracture may not be smoothly transmitted to the fracture part at the time of opening. Therefore, if the resin-made removal part is made thicker, etc. and processed to be hard in order to improve the opening property, the usage-amount of a resin material will increase, and an environmental load will become large.

An object of the present invention is to provide a container which is excellent in openability and also friendly to the environment. [Means of Solving Problems]

The container according to the first aspect of the present invention includes: a main body part containing a resin material and accommodating the content; a cylindrical part containing the resin material, having an inner end and an outer end, and communicating with the main body part on the inner end side ; and a welded portion, which is integrally formed of the same resin material as the cylindrical portion, is connected to the outer end of the cylindrical portion, and is flattened so as to close the outer end of the cylindrical portion. Flatten and weld. The cylindrical portion has a rupture portion, and the rupture portion is ruptured to form an extraction port for extracting the content from the main body portion. At least a portion of the cylindrical portion closer to the outer end side than the breaking portion is formed to be hollow.

A container according to a second aspect of the present invention is the container according to the first aspect, further including a cover member including an annular portion surrounding the cylindrical portion from the outside so as to cover the rupture portion.

A container according to a third aspect of the present invention is the container according to the second aspect, wherein the cover member further includes a container standing up from the annular portion, extending toward the outer end side of the cylindrical portion, and extending along the A plurality of claws arranged in the circumferential direction of the annular portion.

A container according to a fourth aspect of the present invention is the container according to any one of the first to third aspects, wherein the main body portion is integrally formed of the same resin material as the cylindrical portion and the welded portion. constitute. [Effect of invention]

From such a viewpoint, a rupture portion is provided in the cylindrical portion communicating with the main body portion, and at least a portion of the cylindrical portion outside of the rupture portion is formed to be hollow. Since the hollow part of the cylindrical part has the expansion part, the thickness of the outer wall part of the hollow part is relatively thin and flexible, and even if only a small amount of resin material is used to form the hollow part, a certain strength can be maintained. Therefore, by pinching the hollow portion of the cylindrical portion with fingers and using it, the force required for breaking can be smoothly transmitted to the breaking portion at the time of unsealing, and the container can be easily unsealed. From the above, it is possible to provide a container which is excellent in openability and also friendly to the environment.

Hereinafter, a container according to an embodiment of the present invention will be described with reference to the drawings. <1. Overall structure> FIG. 1 shows a front view of a container 100 according to an embodiment of the present invention, and FIG. 2 shows a left side view of the container 100 . Furthermore, in the description here, unless otherwise specified, "up (top)", "down (bottom)", "left", "right", "front (front)", "rear (back)" )" is defined as shown in Figure 1 to Figure 4. However, the term "up and down" here does not limit the usage of the container 100 .

As shown in FIGS. 1 and 2 , the container 100 includes a container body 1 in which the content is accommodated, and a cover member 2 attached to the container body 1 . The container body 1 is an airtight container in which the content is sealed, and is unsealed when a part of the container is broken and cannot be resealed. Therefore, the container body 1 is a disposable container which is once opened and the contents are taken out and then discarded. In this embodiment, the container body 1 is discarded together with the cover member 2 attached thereto.

The kind of the content accommodated in the container main body 1 is not specifically limited, For example, it may be a medicine, or a food may be sufficient. In addition, the form of the content is not particularly limited, and for example, it can be made into a gel form, a liquid form, a granular form, or the like. In addition, although the details will be described later, the container 100 of the present embodiment can spray a medicine on a hard surface to make it adhere like a seal, for example, it can be used for applying medicine on the inner surface of a toilet bowl. In addition, for example, the container 100 can also be used for the purpose of applying a chemical to the inner surface of a waste box. The chemical suitable for the seal on the hard surface is typically a fluid gel-like adhesive, and in the case of applying it to the inner surface of a toilet, it is preferable to include it for cleaning the toilet. cleaning agent. In addition, the pharmaceutical agent in the above-mentioned example suitably contains a fragrance, a sterilizing agent, a deodorant, a coloring material, and the like.

<2. Structure of each part> <2-1. Container body> 3 and 4 respectively show a front view and a left side view of the container body 1 alone. The container body 1 has a body portion 10 that accommodates the content, a cylindrical portion 20 extending upward from the upper end of the body portion 10 , and a welding portion 30 extending further upward from the upper end of the cylindrical portion 20 . The main body 10 has an inner space S1 for accommodating contents. The inner space S2 of the cylindrical portion 20 communicates with the inner space S1 of the main body 10 on the inner end 20A side of the cylindrical portion 20 , and is closed by the welding portion 30 on the outer end 20B side of the cylindrical portion 20 . The welded portion 30 is a portion connected to the outer end 20B of the cylindrical portion 20 , and is flatly crushed and welded so as to close the outer end 20B of the cylindrical portion 20 . That is, typically, the welded portion 30 is formed by flattening one end portion of a certain cylindrical member so that the inner space disappears, and welding the end portion so as to maintain this state. In addition, in the original cylindrical member, the part which adjoins the welding part 30, and also maintains a space inside the welding part 30 after shaping|molding is the cylindrical part 20. As shown in FIGS. 2 and 4 , the welded portion 30 is flat in the front-rear direction, and the portion near the welded portion 30 in the cylindrical portion 20 is configured to gradually decrease in thickness in the front-rear direction as it approaches the welded portion 30 .

In the present embodiment, the welding portion 30 is thermally welded by a method of pressing a thermal block or a method such as ultrasonic sealing. In the above description, the welded portion 30 is flat, but the welded portion 30 of the present embodiment is wrinkled in a wavy manner due to the heat at the time of thermal welding. That is, the concept of flatness here includes such a wrinkled state.

The cylindrical portion 20 and the welded portion 30 are integrally formed of the same resin material. In addition, also in this embodiment, the main-body part 10 is comprised integrally with the same resin material as the cylindrical part 20 and the welding part 30. However, the main body portion 10 may be composed of a different material from the cylindrical portion 20 and the welded portion 30, and in this case, it may be composed of a material other than a resin material. As a preferable example of the resin material which comprises these parts 10, 20 and 30, polyethylene, polypropylene, polyethylene terephthalate, etc. are mentioned. The molding method of the container body 1 is not particularly limited, but if a preferred example is given, the body portion 10 , the cylindrical portion 20 , and the welded portion 30 can be integrally molded by blow fill molding. According to this method, the container body 1 can be filled with the contents at the same time as the container body 1 is formed.

In this embodiment, the main body portion 10 is made of a flexible material and has extrudability. That is, the container body 1 is a squeeze container, and after unsealing, the body portion 10 is pressed with a finger or the like to be compressed and deformed, whereby the content can be pushed out from the interior space S1.

In the examples of FIGS. 1 to 4 , the main body portion 10 is elliptical when viewed from the front, and is relatively flat in the front-rear direction, but its shape is not particularly limited. In this embodiment, the main body portion 10 has a central axis extending linearly in the vertical direction, and the cylindrical portion 20 and the welded portion 30 connected thereto also have a central axis extending linearly in the vertical direction. In addition, in the present embodiment, the central axes of the main body portion 10 , the cylindrical portion 20 , and the welded portion 30 are aligned. That is, the cylindrical portion 20 and the welded portion 30 extend straight upward from the center of the upper end of the main body portion 10 and coaxially with the main body portion 10 . In the following description, unless otherwise specified, the “circumferential direction” and the “radial direction” are based on the central axes of the main body portion 10 , the cylindrical portion 20 , and the welded portion 30 .

As shown in FIGS. 3 and 4 , the cylindrical portion 20 has a base portion 21 and a removal portion 22 in this order from the inner end 20A toward the outer end 20B. Further, the lower end of the base portion 21 corresponds to the inner end 20A of the cylindrical portion 20 , and the upper end of the removed portion 22 corresponds to the outer end 20B of the cylindrical portion 20 . Moreover, the cylindrical part 20 is comprised so that it may have a fracture|rupture part D1 in the boundary of the base part 21 and the removal part 22, and is relatively easy to fracture|rupture along the fracture|rupture part D1. When the rupture portion D1 is ruptured, the container body 1 is separated into a member including the main body portion 10 and the base portion 21 connected thereto, and a member including the removal portion 22 and the welded portion 30 connected thereto. Thereby, the extraction port S3 for extracting the content from the main body part 10 is formed, and the container main body 1 is unsealed. A take-out port S3 is formed at the upper end of the base portion 21 .

The base portion 21 has a lower portion 211 extending upward from the inner end 20A and having a constant diameter, and an upper portion 212 connected to the upper end of the lower portion 211 . In this embodiment, the cross-sections of the lower part 211 and the upper part 212 are circular. The diameter of the lower end of the upper part 212 is larger than that of the upper end of the lower part 211 , and a level difference D2 is formed along the entire circumference of the circumferential direction at the boundary between the lower part 211 and the upper part 212 . The effect of this level difference D2 will be described later. The upper portion 212 is gradually reduced in diameter from its lower end toward its upper end. The upper end of the upper part 212 is connected to the lower end of the removal part 22 , and the diameter of the lower end of the removal part 22 is larger than that of the upper end of the upper part 212 . Therefore, a valley bottom is formed along the entire circumference in the circumferential direction at the boundary between the upper portion 212 and the removed portion 22 , and the valley bottom constitutes the break portion D1 . As a result, when an external force such as twisting in the circumferential direction and/or bending in the direction of the central axis is applied to the cylindrical portion 20, the cylindrical portion 20 is relatively easily broken along the breaking portion D1. That is, the fractured portion D1 is a portion where stress concentration is more likely to occur than other portions of the cylindrical portion 20 when an external force is applied to the cylindrical portion 20 , and is preferably a portion where the stress is most concentrated.

In this embodiment, the lower end of the removal portion 22 is annular. The removal part 22 is comprised so that the thickness of the front-back direction may become gradually small from the lower end toward the upper end. On the other hand, the removal part 22 is comprised so that it may become wide gradually as it goes up from the lower end in front view. Among them, the upper end of the removal portion 22 has an upwardly convex arc shape, and the portion near the upper end of the removal portion 22 has a narrow width as it goes upward. In addition, the welded portion 30 is wider than the widest portion of the removal portion 22 when viewed from the front.

In the cylindrical part 20, at least the part on the outer end 20B side rather than the rupture part D1, ie, the removal part 22, is comprised hollow. In the present embodiment, the content is substantially accommodated only in the inner space S1 of the main body portion 10 , and is not substantially accommodated in the inner space S2 of the cylindrical portion 20 . That is, the entire cylindrical portion 20 is substantially hollow. The hollow portion of the cylindrical portion 20 is filled with air and has an inflation portion. Therefore, in the present embodiment, the thickness of the outer wall portion of the cylindrical portion 20 is relatively thin and flexible, and although only a small amount of resin material is used to construct the cylindrical portion 20, the cylindrical portion 20 is due to the pressure of the air in the internal space S2. And has a certain strength. Therefore, when the container body 1 is unsealed, the hollow removal portion 22 can be used by pinching the hollow removal portion 22 with fingers, so that the force required for breaking at the breaking portion D1 can be smoothly transmitted to the cylindrical portion 20 . Thereby, the unsealing property of the container body 1 can be improved. In addition, since the cylindrical portion 20 having the rupture portion D1 has a simple structure, the amount of resin material used for molding the cylindrical portion 20 is reduced, which is also environmentally friendly.

In addition, in this embodiment, the front surface of the removal part 22 is inclined so that it may go forward as it goes from the upper end to the lower end, and the rear surface of the removal part 22 may be inclined so that it may face back as it is clear from the description. Therefore, when the container body 1 is unsealed, it is easy to hold the removal portion 22 by attaching two fingers to these surfaces respectively. In addition, two fingers are attached to the front surface and the rear surface of the removal part 22 respectively, and when the removal part 22 is clamped by these two fingers, the welding part 30 is also clamped between the two fingers. At this time, in the present embodiment, since the welded portion 30 is wrinkled in a wavy manner, the welded portion 30 in contact with the finger becomes a resistance, and the finger does not easily come off the removal portion 22 . Therefore, the unsealing property of the container body 1 can be further improved.

In addition, as described above, since at least the removal portion 22 is formed to be hollow, the member including the discarded removal portion 22 among the two members separated when the fractured portion D1 is fractured is not filled with the content. Therefore, the contents can be used up without waste. In addition, it is also possible to suppress the scattering of the contents due to the impact at the time of the rupture of the rupture portion D1.

In addition, depending on the form of the contents, the contents can move within the container body 1 (internal space S1 and internal space S2 ). More specifically, for example, when the content is liquid or granular, if the main body portion 10 side faces vertically upward and the cylindrical portion 20 side faces vertically downward, the contents can be at least partially removed from the main body portion 10 . The inner space S1 of the cylindrical portion 20 moves into the inner space S2 of the cylindrical portion 20 . However, if at least the removal portion 22 is hollow when at least the main body portion 10 side faces vertically downward and the cylindrical portion 20 side faces vertically upward, the container can be easily removed by pinching the removal portion 22 with fingers as described above. Body 1 is unsealed. In addition, the contents can be used up without waste, and the scattering of the contents can be suppressed.

<2-2. Cover member> The cover member 2 is a member that protects the fractured portion D1 by covering the fractured portion D1 of the cylindrical portion 20 to prevent the container body 1 from being accidentally unsealed. 5 to 7 show a plan view, a bottom view, and a cross-sectional view of the cover member 2, respectively. 7 is a cross-sectional view taken along the line VII-VII in FIG. 5 , in FIG. 7 , the position of the container body 1 when the cover member 2 is attached is shown by a dotted line for reference.

The cover member 2 includes an annular portion 40 that surrounds the cylindrical portion 20 from the outside so as to cover the rupture portion D1. The annular portion 40 has a double-pipe structure including a cylindrical outer wall portion 41 and a cylindrical inner wall portion 42 disposed slightly inside the outer wall portion 41 . The outer wall part 41 and the inner wall part 42 are connected by the annular upper wall part 43 in the vicinity of the upper part of each. The upper portion of the outer wall portion 41 protrudes slightly upward from the upper wall portion 43 . In addition, the upper end of the inner wall portion 42 is positioned slightly below the upper end of the outer wall portion 41 , and the lower end of the inner wall portion 42 is positioned slightly above the lower end of the outer wall portion 41 . Therefore, the inner wall portion 42 and the upper wall portion 43 are completely covered by the outer wall portion 41 when the annular portion 40 is viewed from the side. The cylindrical portion 20 is inserted into the space inside the inner wall portion 42 .

The annular portion 40 further includes an annular protruding portion 44 that protrudes radially inward from the lower portion of the inner wall portion 42 . When the cylindrical portion 20 is inserted into the inner space of the inner wall portion 42 so that the annular portion 40 surrounds the cylindrical portion 20 , the protruding portion 44 is hooked on the step D2 formed in the base portion 21 of the cylindrical portion 20 . Thereby, the cover member 2 is less likely to slide upward with respect to the cylindrical portion 20 . In addition, at this time, the lower end portion of the annular portion 40 is substantially in contact with the upper surface of the main body portion 10 , and the cover member 2 can hardly slide downward with respect to the cylindrical portion 20 or cannot slide at all. From the above, the relative positions of the cover member 2 and the cylindrical portion 20 are fixed. The annular portion 40 covers the rupture portion D1 in a state where the protruding portion 44 is hooked on the level difference D2 , and in this embodiment, covers substantially the entirety of the base portion 21 and the lower portion of the removal portion 22 in particular. Therefore, the cover member 2 can stably cover the rupture portion D1 and protect the rupture portion D1. In addition, the extraction port S3 formed after the rupture of the rupture portion D1 is arranged in the space inside the annular portion 40 in a state where the protruding portion 44 is hooked on the level difference D2. Furthermore, in this embodiment, the inner diameter of the inner wall portion 42 is narrower than the maximum width of the removed portion 22 of the cylindrical portion 20 . Therefore, even if the protruding portion 44 is slid upward beyond the level difference D2, the cover member 2 does not come off from the cylindrical portion 20, thereby preventing the cover member 2 from being lost.

The cover member 2 further includes a plurality of claws 50 standing up from the annular portion 40 and arranged along the circumferential direction of the annular portion 40 . In this embodiment, the claws 50 are arranged at equal intervals along the circumferential direction. In addition, the claws 50 extend upward from the upper portion of the annular portion 40 , more specifically, from the upper portion of the outer wall portion 41 and the upper wall portion 43 . Therefore, the claws 50 face the outer end 20B of the cylindrical portion 20 in a state where the cylindrical portion 20 is inserted into the space inside the inner wall portion 42 and the protruding portion 44 is hooked on the level D2 from below. side extension. In this state, the claw 50 does not come into contact with the cylindrical portion 20 , and when the protruding portion 44 slides upward over the level difference D2 , it can come into contact with the removal portion 22 and the welded portion 30 . As a result, the contact of the claw 50 with the removal part 22 and the welding part 30 becomes resistance, and it is possible to further prevent the cover member 2 from falling off from the cylindrical part 20 .

In addition, the claw 50 can play a further role when the container 100 is used for the purpose of adhering a medicine on a hard surface like a seal. That is, after breaking the tubular portion 20 at the breaking portion D1 and opening the extraction port S3, the main body portion 10 is pressed while the plurality of claws 50 are abutted against the hard surface. Thereby, the medicine in the main body part 10 is pushed out from the main body part 10 , passes through the base part 21 , and is ejected to the outside through the extraction port S3 arranged inside the annular part 40 . After that, the medicine that has passed through the inner space of the annular portion 40 spreads radially from the plurality of gaps between the plurality of claws 50 while contacting the hard surface. Thereby, as shown in FIG. 8, the content adheres to the hard surface in the state which spreads radially. Therefore, the medicine is formed into a flower-like pattern, and the hard surface can be beautifully decorated.

The material constituting the cover member 2 is not particularly limited, but is preferably a material having a certain degree of hardness in view of the effect of protecting the fractured portion D1 , and is preferably harder than at least the base portion 21 . For example, the cover member 2 may be made of rigid synthetic resin such as polyethylene and polypropylene, or may be made of metal such as aluminum.

<3. Modifications> As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, Various changes are possible, unless it deviates from the summary. For example, the following changes can be made. In addition, the gist of the following modifications can be appropriately combined.

<3-1> The cover member 2 may be omitted, and the container body 1 may be used alone.

<3-2> The annular portion 40 of the cover member 2 is not necessarily an annular shape, and may be any shape such as a square ring shape, for example.

<3-3> In the embodiment described above, the contents are only accommodated in the body portion 10 of the container body 1 , but the contents can be accommodated in the lower portion 211 of the base portion 21 , and further can be accommodated in the upper portion 212 .

<3-4> When the container 100 is used for the purpose of attaching a medicine to a hard surface like a seal, the shape of the medicine ejected from the container 100 may not be a flower pattern, but may be a simple circle or a rectangle. In this case, the claws 50 can be omitted from the cover member 2 . In addition, the claws 50 are not necessarily arranged at equal intervals in the circumferential direction, and can be appropriately set according to the desired shape of the medicine to be ejected.

<3-5> In the said embodiment, although the hollow part of the cylindrical part 20 is filled with air, other gas may be filled, for example, inert gas, such as nitrogen gas or argon gas, may be filled.

<3-6> The welded portion 30 may be embossed during welding. In this case, in order to apply a force for breaking to the breaking portion D1, when the removal portion 22 and the welding portion 30 are sandwiched between two fingers, the unevenness of the surface of the welding portion 30 caused by embossing can be exhibited. Anti-slip effect on fingers. Therefore, fingers are less likely to come off from the removal portion 22, and the unsealing property of the container body 1 can be further improved.

1: Container body 2: Cover member 10: Main body 20: cylindrical part 20A: inner end 20B: Outer end 21: Base 22: Removal part 30: Welding part 40: Ring part 41: Outer wall 42: inner wall 43: Upper wall 44: Protrusions 50: Claw 100: Container 211: lower part 212: Upper D1: Broken part D2: Step difference S1, S2: Internal space S3: Take Out

FIG. 1 is a front view of a container according to an embodiment of the present invention. Figure 2 is a left side view of the container. 3 is a front view of the container body in a state in which the cover member is not attached. 4 is a left side view of the container body in a state in which the cover member is not attached. Fig. 5 is a plan view of the cover member. Fig. 6 is a bottom view of the cover member. 7 is a cross-sectional view of the cover member. FIG. 8 is an external view of the contents adhering to the hard surface.

1: Container body

2: Cover member

10: Main body

20: cylindrical part

20A: inner end

20B: Outer end

22: Removal part

30: Welding part

40: Ring part

41: Outer wall

50: Claw

100: Container

S1, S2: Internal space

Claims (4)

A container comprising: The main body part contains resin material and accommodates the contents; a cylindrical portion comprising a resin material, having an inner end and an outer end, and communicating with the body portion on the inner end side; and The welded portion is integrally formed of the same resin material as the cylindrical portion, is connected to the outer end of the cylindrical portion, and is flatly crushed so as to close the outer end of the cylindrical portion and fused, The cylindrical portion has a rupture portion, and the rupture portion is ruptured to form an extraction port for extracting the content from the main body portion, At least a portion of the cylindrical portion closer to the outer end side than the breaking portion is formed to be hollow. The container according to claim 1, further comprising a cover member including an annular portion surrounding the cylindrical portion from the outside so as to cover the rupture portion. The container according to claim 2, wherein the cover member further includes a structure that stands up from the annular portion, extends toward the outer end side of the cylindrical portion, and is aligned along the circumferential direction of the annular portion. of multiple claws. The container according to any one of Claims 1 to 3, wherein the body portion is integrally formed of the same resin material as the cylindrical portion and the welded portion.

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