Pet bottle cap

Abstract

To provide a PET bottle cap which can be easily opened and closed by anyone without requiring to turn the cap by applying an excessive load many times.SOLUTION: The PET bottle cap of the present invention is a PET bottle which is composed of a cap for covering a spout and a main body having the spout and which can be opened and closed by rotating the cap, and has a structural feature that a one touch opening and closing mechanism is provided instead of a screw thread for opening and closing the cap, and means for enabling the cap to be easily opened and closed without rotating the cap many times is provided.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a plastic bottle cap that can be easily opened and closed without applying a strong load to the lid to rotate it. More specifically, the cap is equipped with a one-touch opening and closing mechanism on the cap and the main drinking spout, making it possible to open and close the PET bottle without any hassle. [Background technology]

[0002] Everyday, we buy and drink bottled drinks from convenience stores and vending machines.

[0003] Since people of all ages and genders can potentially drink it, it is desirable for the cap to be easy for anyone to open and close.

[0004] The caps used on PET bottled drinks currently on the market are all similar. They require a certain amount of force when you first open them, and they also require a certain amount of twisting when opening and closing.

[0005] There are products on the market called plastic bottle openers that make it easy to open and close plastic bottle caps. There is not just one type, but many different types have been developed. This product is targeted not only at children and the elderly who have weak grip strength, but also at people who want to avoid hurting their hands or nails.

[0006] The fact that plastic bottle openers are available on the market means that there is a demand for them. In other words, it shows that the current plastic bottle caps are "tight."

[0007] In other words, the ease of opening and closing the cap is a very important factor when it comes to bottled beverages. For this reason, PET bottle caps that are easy for anyone to open and close have been provided. For example, Patent Documents 1 to 4 are listed.

[0008] Patent Document 1 discloses technology for a cap for a PET bottle, which can be opened by simply removing the hook, and closed by simply placing the opening and closing lid over the mouth of the PET bottle and fastening the hook; the opening and closing lid is attached to the lid attachment part and will not come off, but due to its structure there is a risk that it may open unintentionally for some reason, and there are concerns about whether it can seal properly.

[0009] Patent Document 2 discloses a technology relating to a cap for a plastic bottle that is provided with anti-slip fins on the side circumferential surface of the cap, making it easy to open even for those with weak strength.

[0010] Both Patent Documents 1 and 2 provide a protrusion on the outside of the cap, but this is undesirable from a safety standpoint as it may be damaged by a sudden impact and is dangerous for small children. Here, in order to achieve the desired goal of creating a plastic bottle cap that is easy for anyone to open and close, safety aspects must be carefully considered.

[0011] Patent Document 3 discloses a technology for a plastic bottle cap that increases friction by adding large, evenly spaced curved grooves to the conventional vertical uneven grooves in the same number as to maximize the friction when gripped with part of the palm and the pads of the fingers. However, this only improves the ease of gripping when opening and closing the cap, and does not change the internal structure, as it requires multiple turns.

[0012] Patent Document 4 discloses technology for a plastic bottle cap that has a triangular groove cut into the bridge that faces the direction of opening, making it easy for even children or elderly people with weak strength to open. However, this technology is based on conventional caps, and it is still necessary to turn the cap to a certain extent to open and close it.

[0013] As such, a plastic bottle cap that can be opened and closed easily by anyone and that also provides a tight seal by simply incorporating a simple internal design has yet to be provided. [Prior art documents] [Patent documents]

[0014] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-306981 [Patent Document 2] Publication No. 3109446 [Patent Document 3] Japanese Patent Application Laid-Open No. 2006-306491 [Patent Document 4] Publication No. 3245768 Summary of the Invention [Problem to be solved by the invention]

[0015] The present invention was made in consideration of the above-mentioned unsolved problems, and aims to provide a plastic bottle cap that has a particularly simple mechanism and allows anyone to open and close it easily without applying a strong load to the cap and rotating it. [Means for solving the problem]

[0016] In order to solve the above problem, the inventor of the present invention carried out development by focusing on the fact that a plastic bottle cap needs to be twisted and rotated to a certain extent when it is opened. In addition, we investigated a device structure that would minimize the amount of twisting required, as creating this mechanism would be the way to realize a plastic bottle cap that can be easily opened and closed.

[0017] While screw threads are normally required to tighten a cap, we have devised a structure that allows the lid to be tightened by providing a recessed and protruding part that fits together (hereinafter referred to simply as the "one-touch opening and closing mechanism"). The concave and convex parts fit together perfectly, providing a sealing effect equivalent to that achieved when tightening the threads on a conventional plastic bottle cap.

[0018] Since the device was developed primarily to be easy to open and close, the structure of the device of the present invention has been devised so that it can be used by children and others with weak strength without a plastic bottle opener.

[0019] As such, the overall configuration of the device according to the present invention is characterized by a structure that does not have any threads and by the inclusion of a one-touch mechanism that allows the cap to be opened and closed easily without rotating it under heavy load. It was discovered that the desired effect can be achieved by fitting the cap that covers the drinking spout and the main body that is equipped with the drinking spout together with unevenness, and this led to the completion of the present invention.

[0020] That is, according to the present invention, a PET bottle cap is provided which is composed of a cap for covering the drinking spout and a body equipped with the drinking spout, and which can be opened and closed by turning the cap, and which is equipped with a one-touch opening and closing mechanism instead of a screw thread for opening and closing the cap, making it easy to open and close without having to turn the cap multiple times.

[0021] Here, it is more preferable that the cap that covers the spout of the PET bottle is U-shaped, and the spout of the body is molded in an inverted T-shape. This molding is a key feature for the cap to function properly, and is an essential condition for ensuring that the U-shaped cap and the inverted T-shaped spout are tightly fitted together to achieve an optimal sealing effect.

[0022] The cap and spout are expected to be made of the same plastic material as conventional bottles, but any material that can fulfill the purpose can be selected.

[0023] In this invention, the spout of the bottle is provided with a protrusion that acts as a stopper, and the cap is provided with a projection that can be mated with the protrusion, realizing a one-touch opening and closing mechanism. This allows the cap to be opened and closed by simply twisting it slightly.

[0024] In addition, the drinking spout of the main body can optionally be provided with a recess instead of a protrusion that can be fitted with the protrusion of the cap.

[0025] When a recess is provided in the drinking spout portion of the main body, it is also possible to optionally provide a wedge-shaped protrusion on the cap portion instead of a protrusion that can be fitted into the recess.

[0026] Furthermore, in the present invention, the number of mating recesses to form a one-touch opening and closing mechanism is not limited to one. It is also acceptable to provide two or more recesses in the drinking spout portion of the main body and a corresponding number of protrusions in the cap portion, so that the cap can be opened and closed by pushing and pulling using these mechanisms.

[0027] Furthermore, since the present invention is intended to be used as a cap for PET bottles currently on the market, there is no need to develop a new PET bottle shape for the present invention.

[0028] That is, according to the present invention, the following plastic bottle cap is provided. (1) A PET bottle cap that is composed of a cap for covering the drinking spout and a body equipped with the drinking spout, and that can be opened and closed by turning the cap. Instead of a screw thread for opening and closing the cap, the cap has a one-touch opening and closing mechanism, making it easy to open and close without having to turn the cap multiple times. (2) A PET bottle cap according to (1), characterized in that it has a protrusion on the drinking spout of the main body that acts as a stopper, and a protrusion on the cap that can be engaged with the protrusion, and the cap can be opened and closed using these mechanisms. (3) A PET bottle cap according to (1), characterized in that it has a recess in the drinking spout portion of the main body and a protrusion in the cap portion that can fit into the recess, and the cap can be opened and closed using these mechanisms. (4) A PET bottle cap as described in (1), characterized in that the main body drinking spout portion has a recessed hole, and the cap portion has a wedge-shaped protrusion that can fit into the recessed hole, and the cap can be opened and closed using these mechanisms. (5) A PET bottle cap as described in (1), characterized in that it has two or more recesses in the drinking spout portion of the main body and a number of protrusions in the cap portion corresponding to the grooves, and the cap can be opened and closed by pushing and pulling the cap using these mechanisms. [Effects of the Invention]

[0029] The PET bottle cap of the present invention has the structural feature of a one-touch opening and closing mechanism that allows a PET bottle that can be opened and closed by turning the cap to open and close without having to turn the cap multiple times. When using this PET bottle cap, the cap can be opened and closed easily, which ultimately eliminates the hassle of opening and closing the cap for all users.

[0030] In addition, the ripple effect of PET bottled beverages using the present invention can be expected. In other words, this will allow us to reach people who have previously hesitated to purchase bottled drinks because of the hassle of opening and closing the cap, leading to increased sales of bottled drinks. [Brief explanation of the drawings]

[0031] [Figure 1] The main body drinking spout and cap part of the PET bottle cap of the present invention [Figure 2] The PET bottle cap of the present invention is provided with a protrusion on the drinking spout of the main body that acts as a stopper, and a protrusion on the cap that can be fitted with the protrusion. [Figure 3] The PET bottle cap of the present invention has a recess in the drinking spout portion of the main body and a protrusion in the cap portion that can fit into the recess. [Figure 4] The PET bottle cap of the present invention has a hole recess in the drinking spout portion of the main body and a wedge-shaped protrusion that can fit into the recess in the cap portion. [Figure 5] The PET bottle cap of the present invention has two or more recesses in the drinking spout portion of the main body and a corresponding number of protrusions in the cap portion. DETAILED DESCRIPTION OF THE INVENTION

[0032] The following describes in detail how to use the plastic bottle cap according to the present invention with reference to the drawings, but the scope of the present invention is not limited to these examples of how to use it.

[0033] As described above, the present invention relates to a plastic bottle cap equipped with a one-touch opening and closing mechanism that can be easily opened and closed without having to turn it multiple times, and provides a plastic bottle cap that can be easily handled even by people with weak grip strength.

[0034] That is, according to the present invention, (1) A PET bottle cap is provided that is comprised of a cap for covering the drinking spout and a body equipped with the drinking spout, and that can be opened and closed by turning the cap. Instead of a screw thread for opening and closing the cap, the cap has a one-touch opening and closing mechanism, making it easy to open and close without having to turn the cap multiple times. (2) A PET bottle cap as described in (1) is provided, characterized in that the main body drinking spout portion has a convex portion that acts as a stopper, and the cap portion has a protrusion that can be engaged with the convex portion, and the cap can be opened and closed using these mechanisms. (3) A PET bottle cap as described in (1) is provided, characterized in that it has a recess in the drinking spout portion of the main body and a protrusion in the cap portion that can fit into the recess, and the cap can be opened and closed using these mechanisms. (4) A PET bottle cap as described in (1) is provided, characterized in that it has a hole recess in the drinking spout portion of the main body and a wedge-shaped protrusion that can fit into the recess in the cap portion, and the cap can be opened and closed using these mechanisms. (5) A PET bottle cap as described in (1) is provided, characterized in that it has two or more recesses in the drinking spout portion of the main body and a number of protrusions corresponding to the grooves in the cap portion, and the cap can be opened and closed by pushing and pulling the cap using these mechanisms.

[0035] Figure 1 shows the cap part, which is the base of the present invention, and the main drinking spout part when both are in use. Figures 2 to 5 show specific examples of the one-touch opening and closing mechanism of the present invention. (1) is the cap portion constituting the present invention, and (2) is the main drinking spout portion. (3), (5), (7), and (9) are convex portions that mate with (4), (6), (8), and (10), respectively. (4) and (8) are convex portions provided on the main drinking spout portion, and (6) and (10) are concave portions provided on the main drinking spout portion.

[0036] (3), (5), (7), and (9) are intended to be made of the same material as the cap, but other materials may be used as appropriate.

[0037] The cap can be tightened by fitting (3) and (4) together in Figure 2. By slightly twisting the cap, (3) and (4) can be separated and the cap can be opened.

[0038] The cap can be tightened by fitting (5) into (6) in Figure 3. Also, by slightly twisting the cap, (5) can be separated from (6) and opened.

[0039] The cap can be tightened by fitting (7) into (8) in Figure 4. Also, by slightly twisting the cap, (7) can be separated from (8) and opened.

[0040] The cap can be tightened by fitting (9) to (10) in Figure 5. Also, by pulling the cap, (9) separates from (10) and can be opened.

[0041] If the present invention makes it possible to create a PET bottle cap that is easy for anyone to open and close, it will lead to effects such as increased consumer purchasing power, i.e., increased sales of PET bottled beverages. [Explanation of symbols]

[0042] (1) Cap (2) Main body drinking spout (3) Protrusion on the cap (4) The protruding part of the drinking spout (5) Protrusion on the cap (6) Recessed part of the main body (7) Wedge-shaped protrusion on the cap (8) Convex part of the drinking spout (9) Two or more protrusions on the cap (10) Two or more recesses in the mouth of the main body

Claims

1. This PET bottle cap is characterized in that it is made up of a cap for covering the drinking spout and a body equipped with the drinking spout, and can be opened and closed by turning the cap, and has a one-touch opening and closing mechanism instead of a screw thread for opening and closing the cap, allowing the cap to be easily opened and closed without having to turn it multiple times.

2. 2. The PET bottle cap according to claim 1, characterized in that the main body drinking spout portion has a convex portion serving as a stopper, and the cap portion has a protrusion that can be engaged with the convex portion, and these mechanisms can be used to open and close the cap.

3. 2. The PET bottle cap according to claim 1, characterized in that the main body has a recess in the drinking spout portion and the cap has a protrusion that can be fitted into the recess, and the cap can be opened and closed using these mechanisms.

4. 2. The PET bottle cap according to claim 1, characterized in that the main body has a recessed hole in the drinking spout portion, and the cap has a wedge-shaped protrusion that can fit into the recessed hole, and these mechanisms can be used to open and close the cap.

5. 2. The PET bottle cap according to claim 1, characterized in that the cap has two or more recesses in the drinking spout portion of the main body and a corresponding number of protrusions in the cap portion, and the cap can be opened and closed by pushing and pulling the cap using these mechanisms.

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