Bottle

Abstract

Reduce environmental impact. [Solution] The device comprises a bottomed cylindrical bottle 11, a lid 12 that opens and closes the upper end opening of the mouth portion 21 of the bottle 11, and a hinge projection 13 that protrudes radially outward from the outer peripheral surface of the mouth portion 21, is connected to the lid 12, and is formed to be deformable. The bottle 11, lid 12, and hinge projection 13 are integrally formed from a synthetic resin material.

Description

Technical Field

[0001] The present invention relates to a bottle body.

Background Art

[0002] Conventionally, as shown in Patent Document 1 below, for example, a synthetic resin bottle body is known in which a lid body separate from the bottle is attached to the mouth of the bottle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, there has been a demand for reducing the environmental impact, particularly for bottle bodies made of synthetic resin.

[0005] The present invention provides a bottle body capable of reducing the environmental impact. [[ID=4o]]

Means for Solving the Problems

[0006] A bottle body according to an aspect of the present invention includes a bottle formed in a bottomed cylindrical shape, a lid body that opens and closes an upper end opening of the mouth of the bottle, and a hinge projection piece that projects radially outward from an outer peripheral surface of the mouth and is connected to the lid body and is formed to be deformable. The bottle, the lid body, and the hinge projection piece are integrally formed of a synthetic resin material.

[0007] Since the bottle, the lid body, and the hinge projection piece are integrally formed of a synthetic resin material, it becomes unnecessary to provide, integrally with the lid body, a cylindrical portion or the like that is connected to the lid body via the hinge projection piece and is externally mounted on the mouth, so that the amount of resin material used can be reduced, and a bottle body capable of reducing the environmental impact can be obtained. It should be noted that in the original text, there may be some tags like which seem to be placeholder tags without specific content. Also, in the translation, the "z8" in the "

Summary of the Invention

[0008] A stepped portion facing upwards may be formed on the inner circumferential surface of the opening portion, where the inner plug member is positioned.

[0009] Since a stepped portion is formed on the inner surface of the mouth, the stopper can be easily inserted into the mouth by abutting the stopper downwards against the stepped portion, thereby easily adding the desired function to the bottle body.

[0010] A neck ring is formed on the outer circumferential surface of the mouth portion, projecting radially outward and extending continuously around its entire circumference, and the hinge projection may be provided between the neck ring and the upper opening edge of the mouth portion.

[0011] Since the hinge projection is provided between the neck ring and the upper opening edge of the mouth, when setting a preform consisting of a test tube-shaped bottle molding section, a lid, and a hinge projection into a mold and blow-molding the portion of the bottle molding section below the mouth to form a bottle, it becomes possible to easily seal the space between the upper end of the mouth and the air blow nozzle, and the lower surface of the neck ring can be positioned on the mold's setting surface for stable fixing. In addition, concerns about the hinge projection being damaged by contact with the mold can be avoided.

[0012] The opening may have a locking portion formed therein, which locks when the lid is in an open position that opens the upper end opening of the opening.

[0013] Since the opening has a locking mechanism that secures the lid when it is in the open position, opening the upper end of the opening, it is possible to prevent the lid from shaking unstably relative to the bottle during transport before filling, during filling, and during use. [Effects of the Invention]

[0014] According to the above embodiment of the present invention, the environmental burden can be reduced. [Brief explanation of the drawing]

[0015] [Figure 1] This is a longitudinal cross-sectional view of the main part of the bottle body of the first embodiment. [Figure 2] This is a longitudinal cross-sectional view of the main part of the bottle body of the second embodiment. [Figure 3] Figure 2 is a longitudinal cross-section of the modified bottle. [Modes for carrying out the invention]

[0016] A first embodiment of the present invention will be described below with reference to the drawings. As shown in Figure 1, the bottle body 1 of this embodiment comprises a bottomed cylindrical bottle 11, a lid 12, and a hinge projection 13, and is integrally formed from a synthetic resin material. The bottle 11 comprises a mouth portion 21, a shoulder portion 22, a body portion 23, and a bottom portion (not shown). The mouth portion 21, shoulder portion 22, body portion 23, and bottom portion are arranged coaxially with the central axis O.

[0017] Hereinafter, the side of the opening 21 along the central axis O will be referred to as the upper side, the bottom side along the central axis O will be referred to as the lower side, and the direction along the central axis O will be referred to as the up-down direction. The direction that intersects the central axis O when viewed from the up-down direction will be referred to as the radial direction, and the direction that circles around the central axis O when viewed from the up-down direction will be referred to as the circumferential direction.

[0018] A neck ring 24 is formed on the outer circumferential surface of the mouth portion 21 of the bottle 11, projecting radially outward and extending continuously around its entire circumference. The lower surface of the neck ring 24 is a flat surface that extends straight radially.

[0019] The lid 12 is formed in a top-covered cylindrical shape and opens and closes the upper end opening of the mouth portion 21 of the bottle 11. The peripheral wall 12a of the lid 12 is detachably externally fitted to the mouth portion 21 of the bottle 11. A knob portion 12d protruding outward in the radial direction is formed on the peripheral wall 12a. On the top wall 12b of the lid 12, a seal cylinder 12c protruding downward and detachably and closely fitted into the mouth portion 21 is formed.

[0020] The hinge projection 13 protrudes outward in the radial direction from the outer peripheral surface of the mouth portion 21 and is connected to the lid 12. The hinge projection 13 is formed in a plate shape and is deformable. The front and back surfaces of the hinge projection 13 face in the vertical direction in a state where the lid 12 opens the upper end opening of the mouth portion 21 of the bottle 11, as indicated by the two-dot chain line in FIG. 1. The hinge projection 13 is formed to be bendable and deformable in the vertical direction. The hinge projection 13 is provided between the neck ring 24 and the upper end opening edge of the mouth portion 21. The vertical distance between the hinge projection 13 and the neck ring 24 is larger than the vertical distance between the hinge projection 13 and the upper end opening edge of the mouth portion 21. Note that the former distance may be set to be not more than the latter distance.

[0021] The hinge projection 13 and the knob portion 12d are provided at positions facing each other in the radial direction when viewed from the vertical direction. Hereinafter, in the radial direction, the direction in which the hinge projection 13 and the knob portion 12d face each other when viewed from the vertical direction is referred to as the front-back direction. The side on which the hinge projection 13 is located with respect to the central axis O is referred to as the rear side, and the side on which the knob portion 12d is located with respect to the central axis O is referred to as the front side. The direction orthogonal to the front-back direction when viewed from the vertical direction is referred to as the left-right direction.

[0022] The bottle 11, the lid 12, and the hinge projection 13 are integrally formed of a synthetic resin material. The bottle body 1 is formed by setting a preform P consisting of a test tube-shaped bottle molding section X, a lid 12, and a hinge projection 13 into a mold, and then blow molding the bottle molding section X to form the bottle 11. In this process, the mouth portion 21 of the bottle molding section X does not deform before and after blow molding, while the portion located below the mouth portion 21 is blow-molded and stretched to form the shoulder portion 22, body portion 23, and bottom portion. The preform P is formed by injection molding. As shown by the dashed line in Figure 1, the preform P is molded with the hinge projection 13 extending straight in the front-to-back direction and the lid 12 inverted.

[0023] As described above, in this embodiment, the bottle body 1, the bottle 11, the lid 12, and the hinge projection 13 are integrally formed from a synthetic resin material, which makes it possible to reduce the amount of resin material used and thus provides a bottle body 1 that can reduce the environmental impact. Since the bottle 11, lid 12, and hinge projection 13 are integrally formed, even when the lid 12 is opened, the lid 12 and bottle 11 remain connected via the hinge projection 13, preventing the lid 12 from being lost. Furthermore, because they are formed from the same material, such as polyethylene terephthalate resin (PET) or polypropylene resin (PP), sorting during disposal becomes unnecessary, improving the efficiency of recycling.

[0024] Since the hinge projection 13 is provided between the neck ring 24 and the upper opening edge of the mouth portion 21, when the preform P is set in the mold and blow-molded to form the bottle 11, it is possible to easily seal the space between the upper end of the mouth portion 21 and the air blow nozzle, and the lower surface of the neck ring 24 can be positioned on the mold's setting surface and fixed stably.

[0025] Next, a bottle body according to a second embodiment of the present invention will be described with reference to Figure 2. In this embodiment, the same reference numerals are used for parts that are identical to those in the first embodiment, and their descriptions are omitted. Only the differences will be described.

[0026] In the bottle body 2 according to this embodiment, a stepped portion 32 is formed on the inner circumferential surface of the mouth portion 21, facing upward, and on which the inner stopper member 31 is positioned. The stepped portion 32 is located in the same vertical position as the upper surface of the neck ring 24. The stepped portion 32 is formed at the lower end of the mouth portion 21. Here, the connection portion 25 between the lower end of the mouth portion 21 and the upper end of the shoulder portion 22 extends straight in the vertical direction. The stepped portion 32 extends radially outward from the upper end of the inner circumferential surface of the connection portion 25.

[0027] The inner stopper member 31 comprises a supported portion 35, a sealing cylinder 36, and a dispensing cylinder 37. The supported portion 35 is formed in an annular plate shape with its front and back surfaces facing vertically. The supported portion 35 is supported by the stepped portion 32. The supported portion 35 overcomes the projection formed on the inner circumferential surface of the opening portion 21 and is undercut fitted into the opening portion 21. The sealing cylinder 36 extends downward from the inner peripheral edge of the supported portion 35 and is tightly fitted into the upper end of the opening portion 21. The dispensing cylinder 37 extends upward from the inner peripheral edge of the supported portion 35. The rear end of the dispensing cylinder 37 extends radially along its entire length in the vertical direction.

[0028] The opening 21 has a locking portion 33 formed therein, which locks the lid 12 when it is in an open position that opens the upper end opening of the opening 21. In the illustrated example, the locking portion 33 is a protrusion formed on the upper surface of the veneer portion 24a of the neck ring 24, which protrudes rearward from the rear end located directly below the hinge projection 13. The locking portion 33 is formed in a strip-like shape that extends left to right when viewed from above.

[0029] A locking portion 34 is formed on the top wall 12b of the lid 12, which locks into the locking portion 33 when the lid 12 is in the open position. The locking portion 34 is a recess formed on the outer peripheral edge of the upper surface of the top wall 12b, and when the lid 12 is in the open position, the locking portion 33 fits into the locking portion 34. In the illustrated example, the outer peripheral edge of the top wall 12b of the lid 12 is located below the portion located radially inward from the outer peripheral edge. When the lid 12 rotates more than 180° upward around the hinge projection 13 from the closed position that closes the upper end opening of the mouth portion 21, the locking portion 33 engages with the locked portion 34.

[0030] As described above, in the bottle body 2 according to this embodiment, a stepped portion 32 is formed on the inner circumferential surface of the mouth portion 21. By abutting the stopper member 31 downwards against the stepped portion 32, the stopper member 31 can be easily installed inside the mouth portion 21, and a desired function can be easily added to the bottle body 2.

[0031] Since the mouth portion 21 has a locking portion 33 that locks the lid 12 when it is in the open position that opens the upper end opening of the mouth portion 21, it is possible to prevent the lid 12 from shaking unstably relative to the bottle 11 during transport before filling, during filling, and during use.

[0032] Alternatively, instead of the stopper member 31 shown in Figure 2, the stopper member 38 shown in Figure 3 may be attached to the bottle body 2. The inner plug member 38 includes a supported portion 35, a sealing cylinder 36, and a dispensing cylinder 37, as well as a closing plate 38a connected to the inner circumferential surface of the supported portion 35 via a breakable weakening portion 38b, and a pull ring 38c protruding upward from the upper surface of the closing plate 38a. In this inner plug member 38, when the pull ring 38c is pulled up, the weakening portion 38b is broken, the closing plate 38a is separated from the supported portion 35, and the inside of the supported portion 35 becomes open.

[0033] Furthermore, the technical scope of the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention.

[0034] For example, the stopper member attached to the bottle body 2 is not limited to the above embodiment and may be modified as appropriate. The locking portion 33 may be provided on the outer circumferential surface of the opening portion 21, in a portion that is separated vertically from the neck ring 24.

[0035] Furthermore, without departing from the spirit of the present invention, the components in the above embodiments may be replaced with well-known components as appropriate, and the above embodiments and modifications may be combined as appropriate.

[0036] Examples of the present invention are as follows: <1> A bottle formed in the shape of a bottomed cylinder, A lid that opens and closes the upper opening of the mouth of the bottle, It comprises a hinge projection that protrudes radially outward from the outer circumferential surface of the opening, is connected to the lid, and is formed to be deformable, A bottle body in which the bottle, the lid, and the hinge projection are integrally formed from a synthetic resin material. <2> The inner circumferential surface of the opening has a stepped portion facing upward, in which the plug member is positioned. <1> The bottle body as described. <3> A neck ring is formed on the outer circumferential surface of the opening, projecting radially outward and extending continuously around its entire circumference. The hinge projection is provided between the neck ring and the upper opening edge of the mouth, <1> or <2> The bottle body as described. <4> The opening has a locking portion formed therein, which locks when the lid is in an open position that opens the upper end opening of the opening. <1> from <3> The bottle body described in one of the following. [Explanation of Symbols]

[0037] 1, 2 bottles 11 bottles 12 Lid 13 Hinge projection 21 Mouth 24 Neck Rings 31, 38 Inner plug member 32 Stepped section 33 Locking part

Claims

1. A bottle formed in the shape of a bottomed cylinder, A lid that opens and closes the upper opening of the mouth of the bottle, It comprises a hinge projection that protrudes radially outward from the outer circumferential surface of the opening, is connected to the lid, and is formed to be deformable, A bottle body in which the bottle, the lid, and the hinge projection are integrally formed from a synthetic resin material.

2. The bottle body according to claim 1, wherein a stepped portion is formed on the inner circumferential surface of the mouth portion, facing upward, and in which an inner stopper member is positioned.

3. A neck ring is formed on the outer circumferential surface of the opening, projecting radially outward and extending continuously around its entire circumference. The bottle body according to claim 1 or 2, wherein the hinge projection is provided between the neck ring and the upper opening edge of the mouth.

4. The bottle body according to claim 1 or 2, wherein the mouth portion has a locking portion formed thereon that locks when the lid is in an open position that opens the upper end opening of the mouth portion.

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