JP6167262B1 - PET bottle with opener - Google Patents

Abstract

An object of the present invention is to provide a plastic bottle that can be easily opened and does not require sorting work and disposal at the time of recycling. An opening tool 20 is formed by dropping on one surface of a flange portion 21 to form an opening portion, and at least one locking projection 23 is formed at a predetermined lower position on the outer peripheral surface of the dropping opening portion 22. The PET bottle main body is divided into two or more and is provided with a first locking protrusion 31 provided with a gap, and a first locking protrusion on the inner surface of the cylindrical opening. A second locking ridge 32 is provided at a predetermined intermediate position below the ridge 31, and the first locking ridge 31 and the second locking ridge 32 are in the middle. The gaps of the first locking ridges 31 and the gaps of the second locking ridges 32 are provided at non-overlapping positions in plan view. Furthermore, the sealing lid is provided below the second locking protrusion 32 on the inner surface of the cylindrical opening and is provided with a slit. Take the means provided. [Selection] Figure 1

Description

  The present invention relates to a PET bottle with an opening device that facilitates the opening of the PET bottle and does not require a separation operation and a separate disposal when the opening device and the PET bottle are recycled.

  Conventionally, when manufacturing PET bottles, the bottle cap is fixed to the PET bottle body so that the cap body and the end ring are not separated from each other, and when opening the bottle, the end ring is broken and separated from the PET bottle body for collection. However, this method has a problem in that it requires a gap in opening the PET bottle and requires separation work and separate disposal when the PET bottle and the cap are recycled. It was.

  Many proposals have been made on bottle caps that can solve the above-mentioned problems, and that make it easier to open the PET bottles and that do not require separation work and separation at the time of recycling of the PET bottles and caps.

  As a specific proposal, for example, the bottle cap can be fixed to the bottle body without separating the cap body and the end ring at the time of stoppering, and the end ring can be broken at the time of opening to remove it from the bottle body. A “plastic bottle container and bottle cap” (Patent Document 1) that can be easily collected by separating the end ring from the bottle body has been proposed and has become a publicly known technique.

  However, the proposal of such a “PET bottle container and bottle cap” is a cylinder portion, a male screw portion formed on the outer peripheral surface of the cylindrical portion, and an upper portion formed below the male screw portion on the outer peripheral surface of the cylindrical portion. A bottle body having a flange portion and a lower flange portion formed below the upper flange portion on the outer peripheral surface of the cylindrical portion, and a cap formed with an internal thread portion that is screwed with the male screw portion on the inner peripheral surface A bottle cap in which a main body and an end ring that is disposed below the female screw portion and that interferes with the upper flange portion are formed on an inner peripheral surface are integrally formed via a weak portion. When the bottle cap is rotated in the opening direction, the cap main body is detached from the bottle main body, and the end ring remains in the PET bottle container remaining in the bottle main body. A thin-walled portion that is formed thinner at the upper end side of the end ring at a predetermined position in the circumferential direction than the other portions of the end-ring, and cracks when the bottle cap is opened, and the thin-walled portion below the thin-walled portion. A strength holding portion that is formed thicker and prevents the thin-walled portion from being cracked when the bottle cap is plugged, and the thin-walled portion has a substantially inverted equilateral triangular shape in front view, and the bottle cap Since the end ring is configured to break from the thin-walled portion at the time of opening the bottle, it is not easy to open the plastic bottle, and separation work and disposal at the time of recycling the plastic bottle and the cap are required. There was a problem such as.

  In order to solve the problems in the above, the screw-type cap cap used for PET bottles and paper containers or metal containers has a function that makes it possible to drink or pour contents without separating from the container body. Proposed “screw cap cap and its container contributing to recycling having an open / close cap function” (Patent Document 2) has been proposed and is known.

  However, the proposal of “screw cap cap and its container that contributes to recycling with an open / close cap function” suggests that the screw cap cap with an open / close function used for PET bottles, paper containers or metal containers, and its Because it is a container, it is possible to pour out or drink the contents of the container without separating the cap part from the container body, and the cap is plugged by adding an opening operation to the cap cap. It is formed by means that the cap part opens as the movable part moves downward by the opening operation, but the bottle cap becomes a hindrance when drinking. There was a problem.

  Moreover, the cap of the plastic bottle can be easily opened and closed without turning the cap, and the drink in the container can be drunk without spilling while moving, and the “cap” can be easily separated for recycling (Patent Document 3) Has been proposed and is a known technique.

  However, the proposal of such a “cap” has a nozzle that is screwed into a spout of a PET bottle and has a suction mouth that expands and contracts up and down. Although it is a bottle cap with a nozzle that makes it easy to separate plastic bottles and recycling by turning the screwing part, the drinking mouth is always exposed to the outside air during drinking, and there is a hygienic problem, and the opening state of the spout is Since it was not constant, there was a problem that the amount of beverage dispensed was not always supplied quantitatively.

  The present applicant makes it easy to open the PET bottles that could not be solved in the conventionally proposed PET bottles as described above, and pays attention to a disposal method when recycling the PET bottles and caps. Based on the idea that it would be easy to open PET bottles by simple and inexpensive means, and that it would not be possible to provide PET bottles that do not require sorting and disposal when recycling PET bottles and caps. Developed a plastic bottle with an opener that facilitates the opening of the bottle and does not require separation work and separate disposal when recycling the opener and the plastic bottle. This leads to the proposal.

Japanese Patent No. 50958871 JP 2009-133 A JP 2005-132478 A

  SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a plastic bottle with an opening device that facilitates the opening of the plastic bottle and does not require separation work and separation disposal when the opening device and the plastic bottle are recycled. This is the issue.

  In order to solve the above-mentioned problem, the present invention is a plastic bottle with an opening device constituted by an opening device and a plastic bottle body, and the opening device is provided on one side of the flange portion of the plastic bottle body. A drop-opening portion is formed which is smaller in diameter than the inner diameter of the cylindrical opening and bulges downward for a required length, and at least one locking protrusion is formed at a predetermined lower position on the outer peripheral surface of the drop-opening portion. The plastic bottle main body is provided with a first locking ridge portion provided at a predetermined upper position on the inner surface of the cylindrical opening and divided into at least two portions and provided with a gap, and the cylindrical opening A second locking ridge portion that is divided into at least two portions and provided with a gap at a predetermined intermediate position below the first locking ridge portion on the inner surface of the inner surface of the first locking ridge portion; and The middle of the locking protrusion and the second locking protrusion is the plug The locking projections of the first locking projections and the clearances of the second locking projections are provided at non-overlapping positions in plan view. In addition, a sealing lid is provided that is provided below the second locking protrusion on the inner surface of the cylindrical opening and is provided with a slit.

  Further, according to the present invention, a plurality of locking pieces having a required size are provided at a predetermined interval above or below one or both of the first locking ridge and the second locking ridge. An open configuration can be employed.

  Furthermore, this invention can be set as the structure by which the connection part which connects a cylindrical opening part and a sealing lid was formed in the predetermined location of the said dropping slit.

  Still further, according to the present invention, the plastic bottle main body is divided into a cylindrical opening and a body part, and is provided on the outer peripheral surface of the upper end part of the cylinder and the female screw part provided at the lower end part of the inner surface of the cylindrical opening part. It is also possible to employ a configuration that is screwed with the male screw portion.

  Furthermore, the present invention can employ a configuration in which the opening tool and the PET bottle body are formed of the same synthetic resin material.

  According to the PET bottle with an opening device according to the present invention, anyone can easily make a pet by pressing the opening device against the opening of the PET bottle and dropping it without forcefully turning the bottle cap as before. It has an excellent effect that the bottle can be opened.

  Moreover, according to the PET bottle with an opening device according to the present invention, the opening device and the PET bottle main body are formed of the same synthetic resin material, so that it is necessary to separate and discard at the time of recycling. It has the excellent effect that it can provide a plastic bottle that does not.

  Furthermore, according to the PET bottle with an opening device according to the present invention, since the drop sealing lid broken by the opening device remains in the container of the PET bottle, an environmental problem caused by throwing away the garbage or an infant swallows it by mistake. There is an excellent effect that there is no danger such as.

It is explanatory drawing which shows 1st embodiment of the PET bottle with an opening tool concerning this invention. Example 1 It is explanatory drawing which shows the usage condition of the PET bottle with an opening tool concerning this invention. It is explanatory drawing which shows 2nd embodiment of the PET bottle with an opening tool concerning this invention. (Example 2) It is explanatory drawing which shows 3rd embodiment of the PET bottle with an opening tool concerning this invention. (Example 3)

The plastic bottle 10 with an opening device according to the present invention is composed of an opening device 20 and a plastic bottle body 30, and the opening device 20 has an inner diameter of a cylindrical opening 30 a of the plastic bottle body 30 on one side of a flange portion 21. A drop-opening portion 22 that is formed to have a smaller diameter and bulges downward in a required length is formed, and at least one locking protrusion 23 is formed at a predetermined lower position on the outer peripheral surface of the drop-opening portion 22. The PET bottle body 30 is provided with a first locking protrusion 31 that is divided into at least two at a predetermined upper position on the inner surface of the cylindrical opening 30a and provided with a gap 31a. A second locking protrusion 32 is provided around the inner surface of the cylindrical opening 30a at a predetermined intermediate position below the first locking protrusion 31 and divided into at least two portions and provided with a gap 32a. And the first The locking protrusion 31 and the second locking protrusion 32 have an interval between which the locking protrusion 23 of the opening tool 20 can rotate, and the first locking protrusion 31. The gap portion 31a and the gap portion 32a of the second locking ridge portion 32 are provided at non-overlapping positions in plan view, and further, the second locking ridge portion on the inner surface of the cylindrical opening 30a. The sealing lid 36 is provided with a slit 37 that is provided below the base plate 32 and is provided with a slit 37 so as to facilitate the opening of the cap, and it is necessary to separate and dispose of the opening device 20 and the plastic bottle body 30 during recycling. The biggest feature is that it has taken measures that are not.
Hereinafter, an embodiment of a plastic bottle 10 with an opening tool according to the present invention will be described based on the drawings.

  In addition, the plastic bottle 10 with an opening tool concerning this invention is not limited to the Example described below, The shape, dimension, etc. which can exhibit the same effect within the range of the technical idea of this invention. Within the range, it can be appropriately changed.

1 and 2 show a first embodiment of a plastic bottle 10 with an opening device according to the present invention. FIG. 1 (a) is a partially sectional perspective view, and FIG. 1 (b) is a partially sectional side view. 2 (a) and 2 (b) are schematic explanatory views showing usage modes.
The plastic bottle 10 with an opening device according to the present embodiment includes an opening device 20 and a plastic bottle body 30.

The opening device 20 is formed of the same synthetic resin material as the plastic bottle body 30, and is formed on one surface of the flange portion 21 so as to be smaller in diameter than the inner diameter of the cylindrical opening 30 a of the plastic bottle body 30, and bulges below the required length. A drop opening portion 22 is formed.
Further, at least one or more locking projections 23 are formed at a predetermined lower position on the outer peripheral surface of the drop-opening portion 22. About the shape of this latching protrusion 23, it rotates between the 1st latching protrusion 31 and the 2nd latching protrusion 32 provided in the inner surface of the cylindrical opening part 30a of the PET bottle main body 30 mentioned later. There is no particular limitation as long as the shape can be moved and can be kept locked. In the drawing, the case where two locking projections 23 are formed is shown. When a plurality of locking projections 23 are formed in this way, the locking projections 23 are arranged at equal intervals. Is preferred.

  By the way, although the aspect which makes the shape of the front end surface (lower end surface) of the opening tool 20 a flat plane shape substantially horizontal to the top surface can be considered, in order to make it easy to open the drop sealing lid 36 described later. In order to push the drop sealing lid 36 in a point contact state, it is desirable to have an inclined surface with a slight angle as shown in the figure.

The plastic bottle main body 30 is formed of a synthetic resin material that is the same material as the stopper 20, and includes a cylindrical opening 30 a and a body portion 30 b.
At a predetermined upper position on the inner surface of the cylindrical opening 30a, a first locking protrusion 31 that is divided into at least two or more and provided with a gap 31a is provided around. Further, a second locking ridge 32 provided with a gap portion 32a divided into at least two at a predetermined intermediate position below the first locking ridge 31 on the inner surface of the cylindrical opening 30a. Is installed around. The first locking ridge portion 31 and the second locking ridge portion 32 are circumferentially provided with an interval between which the locking protrusion 23 of the opening tool 20 is rotatable. Has been. Further, the gap 31a of the first locking ridge 31 and the gap 32a of the second locking ridge 32 are provided at non-overlapping positions in plan view.

  A sealing lid 36 is provided below the second locking protrusion 32 on the inner surface of the cylindrical opening 30a. The sealing lid 36 is provided with a drop slit 37 around its periphery, and is dropped downward by the drop opening part 22 of the opening tool 20 so that the drop slit 37 is broken and sealed. The lid 36 moves downward and is configured to be opened. That is, it plays the role of a glass ball of the conventional Ramunebin.

  By the way, the aspect which forms the connection part 38 in the predetermined location of the dropping slit 37 can be considered. The connecting portion 38 partially connects the cylindrical opening 30 a and the sealing lid 36, and is provided to prevent the dropped (opened) sealing lid 36 from dropping into the PET bottle body 30. Is.

  In addition, as shown in the drawing, by turning the mark 24 on a part of the flange portion 21 of the opening device 20 and the cylindrical opening portion 30a of the plastic bottle body 30, the opening state of the opening device 20 can be easily achieved. It can also be considered that the specification can be confirmed.

Next, the usage mode of the plastic bottle 10 with an opening tool according to the present embodiment configured as described above will be described with reference to FIG.
By the procedure as shown in the figure, the opening device 20 is rotated and pushed along the dropping structure formed in the cylindrical opening 30a of the plastic bottle body 30, whereby the dropping slit 37 is broken and the sealing lid is broken. 36 is dropped and opened. Hereinafter, the specific usage mode will be described.

<Opening procedure>
The opening tool 20 is rotated using the flange portion 21, the locking projection 23 is aligned with the position of the gap portion 31 a of the first locking protrusion 31, and is pushed in from above (1). Thereby, the latching protrusion 23 will be in the state contact | abutted to the upper edge of the 2nd latching protrusion part 32 (2). Subsequently, the stopper 20 is rotated again by using the flange portion 21, and the locking projection 23 is slid between the first locking projection 31 and the second locking projection 32, and the first locking projection 23 is slid. In accordance with the position of the gap 32a of the second locking ridge 32, it is pushed in from above (3). As a result, the tip (lower end) of the drop opening part 22 comes into contact with the upper surface of the sealing lid 36 (4). When the stopper 20 is further pushed in this state, the leading end (lower end) of the dropping stopper 22 drops, and the sealing lid 36 is dropped downward while breaking the slit 37, and the opening of the PET bottle is completed. (5).

  In the shipping / distribution stage before opening, the stopper 20 is rotated from the state of (2) in the opening procedure so that the locking protrusion 23 is connected to the first locking protrusion 31. It is detained between the two locking protrusions 32. Thereby, even if some load is applied to the opening tool 20 from above in the distribution stage, the locking protrusion 23 is locked by the second locking protrusion 32 and the downward movement is suppressed. The drop-opening portion 22 is not pushed downward, and there is no risk of inadvertent opening.

After the opening, when removing the opening device 20 to drink the beverage in the plastic bottle, the procedure is the reverse of the opening procedure.
For the embolization after the opening, the stopper 20 is rotated from the state (2) in the opening procedure to lock the locking protrusion 23 with the first locking protrusion 31 and the second locking. The locking projection 23 is positioned below the second locking protrusion 32 by placing it between the protrusions 32 or by rotating the opening tool 20 from the state (4) in the opening procedure. It is assumed that it is detained.

  When discarding, dispose of the stopper 20 and the PET bottle main body 30 in a state of being locked, that is, in a state similar to the state in which the stopper is plugged after the opening, without particularly performing separation work. Become.

  The plastic bottle 10 with an opening device according to the present embodiment configured as described above uses the drop-off type opening device 20 to facilitate the opening of the plastic bottle, and the sealing lid 36 includes the plastic bottle body 30. Since it remains in the body portion 30b of the container, there is no danger of environmental problems caused by throwing away trash or accidental swallowing by an infant, and further, separation work and disposal during recycling of the opener 20 and the plastic bottle body 30. This makes it possible to provide plastic bottles that do not require any.

Drawing 3 is an explanatory view showing a 2nd embodiment of PET bottle 10 with an opening tool concerning the present invention, (a) is a fragmentary sectional perspective view, and (b) is a fragmentary sectional side view.
The plastic bottle 10 with an opening tool according to the present embodiment has a configuration in which a locking piece 34 is provided above or below the first locking protrusion 31 and the second locking protrusion 32. It has become.

The locking piece 34 is provided on one or both of the first locking ridge 31 and the second locking ridge 32, and the form thereof is a protruding piece having a required size. Thus, the stopper 20 functions to prevent the locking protrusions 23 formed on the outer peripheral surface of the drop opening part 22 from moving. In order to exert such a function, the locking piece 34 is provided above or below the first locking ridge 31 or the second locking ridge 32, and a plurality of engagements are provided at predetermined intervals. A stop piece 34 is provided.
In the drawing, the case where a plurality of locking pieces 34 are provided below the first locking protrusion 31 and the second locking protrusion 32 is shown.

  The size of the locking piece 34 is not particularly limited, and is determined in relation to the size of the locking projection 23 and the interval between the locking protrusions 31 and 32. The stop protrusion 23 cannot be overcome naturally, and it is necessary to have a size that can be overcome only after the stopper 20 is rotated by human power.

  The position where the locking piece 34 is provided is not particularly limited as long as it is above or below the first locking ridge 31 or the second locking ridge 32. For example, as illustrated, Avoiding that the locking projection 23 naturally moves to at least the positions of the gaps 31a and 32a and the opener 20 moves up and down without permission, such as being provided at a position close to the gaps 31a and 32a. It is necessary to provide the locking piece 34 at the position to be obtained.

  Since the configuration aspects other than the locking piece 34 in the present embodiment are the same as those in the first embodiment, description thereof will be omitted.

  Since the plastic bottle 10 with an opening tool according to the present embodiment configured as described above is provided with the locking piece 34 on the first locking ridge 31 or the second locking ridge 32, The movement of the locking projection 23 by the locking piece 34 can produce an effect that a stable locking state in the cylindrical opening 30a of the plastic bottle main body 30 of the opening device 20 is maintained. it can.

FIG. 4 is an explanatory view showing a third embodiment of the plastic bottle 10 with an opening device according to the present invention, in which (a) is a partial sectional perspective view and (b) is a partial sectional side view.
The plastic bottle 10 with an opening tool according to the present embodiment has a configuration in which the plastic bottle body 30 is divided into a cylindrical opening 30a and a body 30b.

  A female screw part 35b that can be screwed with a male screw part 35a provided in the body part 30b is provided at the lower end of the inner surface of the cylindrical opening 30a. Note that a sealing means 39a that comes into contact with the upper edge of the cylindrical upper end 30c of the body 30b and is in a sealed state is provided around the stepped portion 39 at the intermediate position on the inner surface of the cylindrical opening 30a that can be provided with the female screw 35b. It is preferable to be provided.

  The sealing means 39a is not particularly limited in its specific configuration, but is formed of a material that is in a sealed state when the stepped portion 39 of the cylindrical opening 30a and the upper end edge of the cylindrical upper end 30c are in contact with each other, such as a rubber material. Has been.

  A male screw portion 35a that can be screwed with a female screw portion 35b provided in the cylindrical opening 30a is provided on the outer peripheral surface of the upper end portion of the cylinder in the body portion 30b.

  Since the configuration aspects other than the configuration in which the plastic bottle main body 30 in the present embodiment is divided into the cylindrical opening 30a and the body 30b are the same as those in the first and second embodiments, the description thereof is omitted.

  The plastic bottle 10 with an opening tool according to the present embodiment configured as described above constitutes the present invention by separately preparing the opening tool 20 and the cylindrical opening 30a using the conventional plastic bottle as the body part 30b. Therefore, it is not necessary to invest in a new production line for molding the plastic bottle main body 30 from scratch.

  The plastic bottle 10 with the opening device according to the present invention uses the opening device 20 to facilitate the opening of the plastic bottle, and separates and disposes of the opening device 20 and the plastic bottle body 30 during recycling. Therefore, it is possible to simultaneously pursue both convenience and environmental performance in PET bottles. Therefore, it is considered that the industrial applicability of the “pet bottle with an opening device” according to the present invention is extremely large.

DESCRIPTION OF SYMBOLS 10 Plastic bottle 20 with an opening device Opening device 21 Flange part 22 Drop opening part 23 Locking protrusion 24 Mark 30 PET bottle main body 30a Cylindrical opening part 30b Body part 30c Cylindrical upper end part 31 First locking protrusion part 31a Crevice part 32 Second locking ridge part 32a Gap part 34 Locking piece 35a Male thread part 35b Female thread part 36 Sealing lid 37 Drop slit 38 Connecting part 39 Step part 39a Sealing function

Claims (5)

A plastic bottle with an opening tool composed of an opening tool and a plastic bottle body,
The opener is formed on one side of the flange portion with a drop opening portion that is smaller in diameter than the inner diameter of the cylindrical opening of the PET bottle body and bulges down a required length, and the outer periphery of the drop opening portion Forming at least one locking protrusion at a predetermined lower position on the surface,
The PET bottle main body is provided with a first locking protrusion that is divided into at least two portions and provided with a gap at a predetermined upper position on the inner surface of the cylindrical opening, and an inner surface of the cylindrical opening. A second locking ridge portion that is divided into at least two portions and provided with a gap portion at a predetermined intermediate position below the first locking ridge portion in the circumferential direction, and the first locking The protrusion and the second locking protrusion have an interval between which the locking protrusion of the opening tool can rotate, and the gap between the first locking protrusion and the second locking protrusion. The gap portion of the locking ridge portion is provided at a non-overlapping position in plan view, and is further provided with a slit that falls below the second locking ridge portion on the inner surface of the cylindrical opening. A plastic bottle with an opening device, characterized in that a sealing lid is provided.   A plurality of locking pieces having a required size are provided at predetermined intervals above or below one or both of the first locking protrusion and the second locking protrusion. The PET bottle with an opening device according to claim 1.   The connecting bottle for connecting the cylindrical opening and the sealing lid is formed at a predetermined location of the drop slit, and the PET bottle with an opening device according to claim 1 or 2.   The plastic bottle body is divided into a cylindrical opening and a body part, and is screwed by a female screw part provided at the lower end of the inner surface of the cylindrical opening part and a male screw part provided at the outer peripheral surface of the cylindrical upper end part of the body part. The PET bottle with an opening device according to any one of claims 2 to 3, wherein the plastic bottle is provided.   The PET bottle with an opening device according to any one of claims 2 to 4, wherein the opening device and the PET bottle main body are formed of the same synthetic resin material.