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 21 of the bottle 11, a hinge projection 13 that protrudes radially outward from the outer peripheral surface of the mouth 21, is connected to the lid 12, and is formed to be deformable, and a nozzle cylinder 14 provided inside the mouth 21 and extending in the vertical direction, the upper end of the nozzle cylinder 14 protruding upward from the mouth 21, and the bottle 11, lid 12, hinge projection 13, and nozzle cylinder 14 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 nozzle cylinder extending in the vertical direction is provided integrally with the mouth of a bottle inside the mouth of the bottle, and a lid body separate from the bottle is attached to the mouth of the bottle. A resin bottle body is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, especially for bottle bodies made of synthetic resin, reduction of environmental impact has been demanded.

[0005] The present invention provides a bottle body capable of reducing environmental impact.

Means for Solving the Problems

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

[0007] Since the bottle, lid, hinge projection, and nozzle tube are integrally formed from a synthetic resin material, the bottle, lid, hinge projection, and nozzle tube are made of the same material. This results in a bottle that can reduce environmental impact, for example, by eliminating the need for sorting during disposal, thereby increasing the efficiency of recycling. Since the bottle, lid, hinge projection, and nozzle tube are integrally formed, the lid and bottle remain connected via the hinge projection even when the lid is opened, preventing the lid from being lost. Since the nozzle for dispensing the contents is located inside the mouth of the bottle, any contents that spill out from the nozzle can be contained inside the mouth, preventing the contents from sticking to the hand holding the bottle.

[0008] The mouth portion is formed in the shape of a bottomed cylinder having an annular bottom wall, the bottle has a neck portion extending downward from the inner peripheral edge of the bottom wall of the mouth portion, the nozzle cylinder extends upward from the inner peripheral edge of the bottom wall of the mouth portion, and the inner circumferential surfaces of the neck portion and the nozzle cylinder may be connected without any steps in the vertical direction.

[0009] This bottle is obtained by setting a preform consisting of a test tube-shaped bottle molding section, a lid, a hinge projection, and a nozzle tube into a mold, and then blow-molding the portion of the bottle molding section located below the neck to form the bottle. Since the inner surfaces of the neck and nozzle cylinder are connected without any steps in the vertical direction, the complexity of the mold structure can be kept to a minimum, and the preform can be easily formed.

[0010] The mouth portion is formed in the shape of a bottomed cylinder having an annular bottom wall, the bottle has a neck portion extending downward from the inner peripheral edge of the bottom wall of the mouth portion, the nozzle cylinder extends upward from the bottom wall of the mouth portion, and the hinge projection may be provided between the bottom wall of the mouth portion and the upper opening edge of the mouth portion.

[0011] Since the hinge projection is provided between the bottom wall of the mouth and the upper opening edge of the mouth, when setting the preform in a mold and blow molding 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 bottom wall of the mouth can be positioned on the mold's setting surface (upper surface) and fixed stably.

[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 a bottle body according to one embodiment. [Figure 2] Figure 1 shows the lid in the open position, locked into the locking mechanism. [Figure 3] This is a diagram showing the first modified example of Figure 1. [Figure 4] This figure shows a second modified example of Figure 1. [Modes for carrying out the invention]

[0016] An 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, a hinge projection 13, and a nozzle cylinder 14, and is integrally formed from a synthetic resin material. The bottle 11 includes a mouth portion 21, a shoulder portion 22, a body portion 23, and a bottom portion (not shown). The mouth portion 21, the shoulder portion 22, the body portion 23, and the bottom portion are arranged coaxially with the central axis O.

[0017] Hereinafter, the side of the mouth portion 21 along the central axis O is referred to as the upper side, the side of the bottom portion along the central axis O is referred to as the lower side, and the direction along the central axis O is referred to as the vertical direction. The direction intersecting the central axis O as viewed from the vertical direction is referred to as the radial direction, and the direction circulating around the central axis O as viewed from the vertical direction is referred to as the circumferential direction.

[0018] On the outer peripheral surface of the mouth portion 21 of the bottle 11, a neck ring 24 is formed which protrudes outward in the radial direction and extends continuously over the entire circumference. The lower surface of the neck ring 24 extends upward as it goes outward in the radial direction, but may be a flat surface extending straight in the radial direction. The neck ring 24 is provided at the lower end portion of the mouth portion 21. The mouth portion 21 is formed in a bottomed cylindrical shape having an annular bottom wall 21a. The lower surfaces of the bottom wall 21a and the neck ring 24 are continuously connected without a step in the radial direction. The upper surfaces of the bottom wall 21a and the neck ring 24 are located at the same position in the vertical direction. That is, the neck ring 24 is provided so as to extend the bottom wall 21a of the mouth portion 21 outward in the radial direction. Note that the bottle 11 may not be provided with the neck ring 24. The bottle 11 includes a neck portion 25 that extends downward from the inner peripheral edge portion of the bottom wall 21a of the mouth portion 21 and is connected to the upper end portion of the shoulder portion 22. The neck portion 25 extends straight in the vertical direction.

[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 that protrudes outward in the radial direction is formed on the peripheral wall 12a. On the top wall 12b of the lid 12, a first seal cylinder 12c that protrudes downward and is detachably and tightly fitted into the mouth portion 21 is formed. Among the top wall 12b of the lid 12, the outer peripheral edge portion is located below the portion located radially inward of the outer peripheral edge portion. The lower surface of the outer peripheral edge portion of the top wall 12b is in close contact with the upper end opening edge of the mouth portion 21.

[0020] The hinge projection 13 protrudes outward in the radial direction from the outer peripheral surface of the peripheral wall 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. In the illustrated example, among the hinge projections 13, the middle portion in the length direction (radial direction) is formed thinner than the other portions and is bendable and 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 shown by the two-dot chain line in FIG. 1. The hinge projection 13 is provided between the bottom wall 21a (neck ring 24) of the mouth portion 21 and the upper end opening edge of the mouth portion 21. The vertical distance between the hinge projection 13 and the bottom wall 21a of the mouth portion 21 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 less than or equal to 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, among the radial directions, 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-rear direction. In a state where the lid 12 is closed, 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-rear direction when viewed from the vertical direction is referred to as the left-right direction.

[0022] The nozzle cylinder 14 is located inside the mouth portion 21 and extends vertically. The upper end of the nozzle cylinder 14 protrudes upward from the mouth portion 21. The nozzle cylinder 14 is arranged coaxially with the central axis O. The rear end of the nozzle cylinder 14 has a rear end opening that extends radially through its entire length in the vertical direction. The circumferential edges 26 of the inner periphery of the rear end opening of the nozzle cylinder 14 extend forward as they go upward, and in a longitudinal cross-sectional view of the nozzle cylinder 14 along the vertical and front-to-back directions, they exhibit a concave curve that is recessed towards the front. The nozzle cylinder 14 extends upward from the bottom wall 21a of the mouth portion 21. In the illustrated example, the nozzle cylinder 14 extends upward from the inner peripheral edge of the bottom wall 21a of the mouth portion 21, and the inner surfaces of the nozzle cylinder 14 and the neck portion 25 are connected without any steps in the vertical direction. The inner diameter of the nozzle cylinder 14 may be larger than the inner diameter of the neck portion 25.

[0023] 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 a veneer portion 24a that protrudes rearward from the rear end of the neck ring 24, which is located directly below the hinge projection 13. The locking portion 33 is formed in a strip shape that extends left to right when viewed from above. Note that the veneer portion 24a may protrude directly from the outer circumferential surface of the peripheral wall of the opening portion 21, rather than from the neck ring 24.

[0024] 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. As shown in Figure 2, when the lid 12 rotates more than 180° upward around the hinge projection 13 from the closed position which closes the upper end opening of the mouth portion 21, the locking portion 33 fits into the locking portion 34.

[0025] The bottle 11, lid 12, hinge projection 13, and nozzle cylinder 14 are integrally formed from 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, a hinge projection 13, and a nozzle cylinder 14 into a mold, and then blow molding the bottle molding section X to form the bottle 11. In this process, the mouth 21 and the upper part of the neck 25 of the bottle molding section X do not deform before and after blow molding, while the part located below the upper part of the neck 25 is blow molded and stretched to form the shoulder 22, body 23, and bottom. The lower end of the neck 25 is slightly stretched during blow molding. 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.

[0026] As described above, in the bottle body 1 according to this embodiment, the bottle 11, lid 12, hinge projection 13, and nozzle cylinder 14 are integrally formed from a synthetic resin material, and are made of the same material, for example, polyethylene terephthalate resin (PET) or polypropylene resin (PP). Therefore, a bottle body 1 is obtained that can reduce the environmental burden, such as eliminating the need for sorting at the time of disposal and improving the efficiency of recycling. Since the bottle 11, lid 12, hinge projection 13, and nozzle cylinder 14 are integrally formed, even when the lid 12 is opened, the lid 12 and the bottle 11 remain connected via the hinge projection 13, preventing the lid 12 from being lost. Since the nozzle cylinder 14 for dispensing the contents is located inside the mouth 21, any contents that spill out from the nozzle cylinder 14 can be contained inside the mouth 21, thus preventing the contents from sticking to the hand holding the bottle 11.

[0027] Since the inner circumferential surfaces of the neck portion 25 and the nozzle cylinder 14 are connected without any steps in the vertical direction, the complexity of the mold structure can be suppressed and the preform P can be easily formed.

[0028] Since the hinge projection 13 is provided between the bottom wall 21a of the mouth portion 21 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 bottom wall 21a of the mouth portion 21 can be positioned on the mold's setting surface (upper surface) and fixed stably. Alternatively, a neck ring 24 may be provided on the neck portion 25, which is located below the bottom wall 21a of the mouth portion 21, and the lower surface of the neck ring 24 may be placed on the mold's setting surface (upper surface).

[0029] 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.

[0030] 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.

[0031] For example, 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. The nozzle cylinder 14 is not the only one of the embodiments described above; for example, the nozzle cylinders 14a and 14b shown in Figures 3 and 4 may also be used.

[0032] The nozzle cylinder 14a shown in Figure 3 does not have an opening that penetrates radially, but extends continuously around its entire circumference along its entire vertical length. The nozzle cylinder 14a extends straight in the vertical direction. A second seal cylinder 12e, which protrudes downward from the lower surface of the top wall 12b of the cover 12, is fitted onto the nozzle cylinder 14a. The second seal cylinder 12e is located radially inward from the outer peripheral edge of the top wall 12b.

[0033] As shown in Figure 4, the rear end of the nozzle cylinder 14b has a rear end opening that extends radially through its entire length in the vertical direction. The circumferential edges 26a of the inner periphery of the rear end opening of the nozzle cylinder 14b extend straight in the vertical direction. The upper end opening edge of the nozzle cylinder 14b extends downward along the circumferential direction from the front to the rear. In a longitudinal cross-sectional view of the nozzle cylinder 14b along the vertical and front-rear directions, the upper end opening edge of the nozzle cylinder 14b extends linearly downward from the front to the rear.

[0034] 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.

[0035] 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, A hinge projection extends radially outward from the outer circumferential surface of the opening, is connected to the lid, and is formed to be deformable; The nozzle cylinder, which is provided inside the mouth and extends in the vertical direction, The upper end of the nozzle cylinder protrudes upward from the opening, A bottle body in which the bottle, the lid, the hinge projection, and the nozzle tube are integrally formed from a synthetic resin material. <2> The opening is formed in the shape of a bottomed cylinder having an annular bottom wall, The bottle has a neck portion that extends downward from the inner peripheral edge of the bottom wall of the mouth portion, The nozzle cylinder extends upward from the inner peripheral edge of the bottom wall of the mouth, The inner circumferential surfaces of the neck portion and the nozzle cylinder are connected without any steps in the vertical direction. <1> The bottle body as described. <3> The opening is formed in the shape of a bottomed cylinder having an annular bottom wall, The bottle has a neck portion that extends downward from the inner peripheral edge of the bottom wall of the mouth portion, The nozzle cylinder extends upward from the bottom wall of the opening, The hinge projection is provided between the bottom wall of the mouth 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]

[0036] 1 bottle 11 bottles 12 Lid 13 Hinge projection 14, 14a, 14b Nozzle tube 21 Mouth 24 Neck Rings 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, A hinge projection extends radially outward from the outer circumferential surface of the opening, is connected to the lid, and is formed to be deformable; The nozzle cylinder, which is provided inside the mouth and extends in the vertical direction, The upper end of the nozzle cylinder protrudes upward from the opening, A bottle body in which the bottle, the lid, the hinge projection, and the nozzle tube are integrally formed from a synthetic resin material.

2. The opening is formed in the shape of a bottomed cylinder having an annular bottom wall, The bottle has a neck portion that extends downward from the inner peripheral edge of the bottom wall of the mouth portion, The nozzle cylinder extends upward from the inner peripheral edge of the bottom wall of the mouth, The bottle body according to claim 1, wherein the inner circumferential surfaces of the neck portion and the nozzle cylinder are connected without any steps in the vertical direction.

3. The opening is formed in the shape of a bottomed cylinder having an annular bottom wall, The bottle has a neck portion that extends downward from the inner peripheral edge of the bottom wall of the mouth portion, The nozzle cylinder extends upward from the bottom wall of the opening, The bottle body according to claim 1 or 2, wherein the hinge projection is provided between the bottom wall of the mouth 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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