JP2013151310A - Container for carbonated water and method of transporting the container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container for carbonated water and a method of transporting the container, capable of improving effect of preventing nasty smell adsorption by the enclosed carbonated water.SOLUTION: A bottle includes a cap 20 sealing a mouth part 14 of a bottle body in which fragrance-free carbonated water is filled. The cap 20 is a single-piece cap. The cap 20 includes: an inner seal ring 30 having an inner seal part 33 brought into pressure contact with an inner circumferential surface 14i of the mouth part 14; an outer seal ring 40 having an outer seal part 43 brought into pressure contact with an outer circumferential surface 14o of the mouth part 14; and a top seal wall 50 having a top seal part 53 brought into pressure contact with a distal end surface 14e of the mouth part 14.

Description

  The present invention relates to a carbonated water container including a cap that seals a container body filled with carbonated water as a carbonated beverage, and a method for transporting the container filled with carbonated water. The container is, for example, a bottle.

When the temperature of the carbonated beverage enclosed in the container rises, the carbon dioxide (carbon dioxide) dissolved in the carbonated beverage is discharged from the carbonated beverage to the cap of the carbonated beverage container (for example, resin bottle). A cap (hereinafter referred to as a “two-piece cap”) that has a liner as a sealing member for sealing with the container body so that the required sealing performance is secured even when the internal pressure in the container rises due to the release. (See, for example, Patent Documents 1 and 2).
Further, a cap that does not have a liner (hereinafter referred to as “one-piece cap”) is also well known (for example, see Patent Document 3).

JP 2007-238161 A JP 2002-145212 A JP-A-8-40447

  A carbonated water container filled with carbonated water as a carbonated drink is usually packed in one carton for each predetermined number of containers, and then a container with a pallet with many cartons loaded on the pallet. For example, it is accommodated in a dry container. And since a pallet and a container are used for conveyance of various articles other than a container containing carbonated water, and are used repeatedly, various odor components may adhere to a pallet or a container.

  By the way, the container containing carbonated water sealed with a cap composed of a two-piece cap is stored in a pallet and a dry container as described above, and is loaded on, for example, a container ship and passes through the equator or the vicinity of the equator. Odors of pallets and dry containers (hereinafter referred to as “container environment”) in carbonated water when transported by the route. May be adsorbed by carbonated water. And the adsorption of the off-flavor by such carbonated water changes the taste of carbonated water, so that the commercial value of carbonated carbonated water as a product is lowered.

In the container containing carbonated water in which the two-piece cap is used, it is considered that the odor adsorption of carbonated water occurs due to the following reason.
In a two-piece cap composed of a cap main body and a liner that is arranged inside the cap main body and seals the mouth of the container main body, the thickness of the liner is generally equal to the thickness of the cap main body that requires rigidity. It is smaller than that. For this reason, a strange odor is likely to penetrate the liner through the liner. And the strange odor which permeate | transmitted the liner and penetrate | invaded in the container is adsorbed by carbonated water.

  Further, in the two-piece cap, since the liner mainly seals with the front end surface of the mouth portion of the container body, it is difficult to increase the sealing surface that is the contact surface with the liner at the mouth portion. Yes, this also causes a strange odor to enter the container.

  In addition, when the container with carbonated water contained in the dry container is transported by a container ship passing through the equator or near the equator, the temperature inside the dry container rises near the equator and the equator, The container is exposed to a high temperature environment (for example, an ambient temperature of 30 ° C. or higher) that is higher than the temperature of carbonated water (for example, about 20 ° C.) at the time of filling and sealing the container. For this reason, the amount of carbon dioxide released from the carbonated water is larger than when the carbonated water container is transported at a temperature lower than the temperature in the high temperature environment, and therefore the internal pressure in the container is also increased. Therefore, the amount of carbon dioxide flowing out from the container into the outside air increases. As a result, when the temperature of the container environment thereafter becomes lower than the temperature in the high temperature environment, the outside air is sucked into the container as the internal pressure decreases in the container by the amount of carbon dioxide that has flowed into the outside air. For this reason, a strange odor is more likely to enter the container.

  This invention is made | formed in view of such a situation, and it aims at providing the container for carbonated water which can improve the bad smell adsorption | suction prevention effect by enclosed carbonated water, and the transport method of this container. .

The invention according to claim 1 is a beverage container (1) comprising a container body (10) filled with a beverage and a cap (20) for sealing the mouth (14) of the container body (10). The beverage is carbonated water, and the cap (20) is a beverage container (1) that is a one-piece cap.
According to this, since the cap is a one-piece cap, the thickness of the portion covering the mouth portion can be increased instead of the liner in the two-piece cap. When the temperature of carbonated water enclosed in the container rises due to (environment) and the internal pressure in the container rises due to the release of carbon dioxide dissolved in the carbonated water, permeation of odors through the cap Can be suppressed as compared with the case of a two-piece cap. As a result, it is possible to improve the effect of preventing the entry of a strange odor into the container environment and to suppress the adsorption of the bad odor by the carbonated water, so that the quality of the carbonated water at the time of consumption is improved.

The invention according to claim 2 is the beverage container (1) according to claim 1, wherein the carbonated water is unscented carbonated water.
According to this, since the off-flavor adsorption by unscented carbonated water is suppressed, it is possible to provide unscented carbonated water of good quality at the time of consumption.

The invention according to claim 3 is the beverage container (1) according to claim 1 or 2, wherein the cap (20) has a top wall (22) and a peripheral wall extending downward from the top wall (22). (23), an inner seal ring (30) projecting downward from the lower surface (22a) of the top wall (22), and projecting downward from the lower surface (22a) and surrounding the inner seal ring (30) An outer seal ring (40) positioned and a top seal wall (50) between the inner seal ring (30) and the outer seal ring (40) in a radial direction, the inner seal ring (30) being The inner seal portion (33) is pressed against the inner peripheral surface (14i) of the mouth portion (14), and the outer seal ring (40) is pressed against the outer peripheral surface (14o) of the mouth portion (14). Has an outer seal part (43) Top sealing wall (50) are those having a top seal portion 53 is pressed against the end surface of the mouth portion (14) (14e).
According to this, since the sealing between the cap and the mouth portion is performed by the inner seal portion, the outer seal portion, and the top seal portion, in addition to the distal end surface, it is also performed on the inner peripheral surface and the outer peripheral surface. The sealing property is improved, and the effect of preventing a strange odor from entering the bottle 1 is improved.

The invention according to claim 4 is the method of transporting a beverage container (1) according to any one of claims 1 to 3, wherein the carbonated water is enclosed, and filling the container body (10) during transport. And the beverage container (1) exposed to an environment higher than the temperature of the carbonated water at the time of sealing is a transporting method in which the beverage container (1) is stored in a dry container and transported while being loaded on a pallet.
According to this, the odor generated by pallets, dry containers, etc. was sealed with a cap, even though the container was exposed to a high temperature environment that promotes the release of carbon dioxide from carbonated water during transportation. Intrusion into the container is suppressed. As a result, the off-flavor adsorption by carbonated water can be suppressed, and transportation by repeatedly used pallets and dry containers becomes possible, thereby reducing transportation costs.

  According to the present invention, a container for carbonated water capable of improving the effect of preventing the adsorption of off-flavors due to the enclosed carbonated water is obtained. A transportation method is obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall view of a bottle in which carbonated water according to an embodiment of the present invention is enclosed, and a part thereof is shown in cross section. FIG. 2 is a cross-sectional view of the cap in a plane including the central axis of the bottle in the bottle of FIG. 1. FIG. 3 is a cross-sectional view similar to FIG. 2 in a state where the mouth of the bottle body is sealed with a cap and carbonated water is sealed in the bottle of FIG. 1.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
Referring to FIG. 1, a carbonated water container, which is a beverage container according to an embodiment of the present invention, is a bottle 1 that is sealed in a state filled with unscented carbonated water. The bottle 1 includes a bottle body 10 as a container body that contains carbonated water, and a cap 20 that is a one-piece cap that is detachably attached to the bottle body 10 and can seal the bottle body 10.

  The bottle body 10 includes a bottom portion 11 for placing the bottle 1 on a placement portion (for example, a shelf), a substantially cylindrical body portion 12 that is a cylindrical shape extending upward from the bottom portion 11, and the bottle body 10. And a substantially cylindrical mouth portion 14 for pouring carbonated water contained in the bottle main body 10, and a shoulder portion 13 connecting the trunk portion 12 and the mouth portion 14. The bottle main body 10 is a resin member formed by integral molding of a thermoplastic resin (for example, polyethylene terephthalate (PET)) as a resin.

Note that the expression “almost” includes the case where there is no modifier “almost” and does not exactly match the case where there is no modifier “almost”, but the modifier “almost”. It means a range in which there is no significant difference with respect to the effect as compared with the case where there is no.
In addition, the vertical direction is a direction in a normal state of the bottle 1 in which the bottom 11 is placed on a horizontal plane. And in the said normal state, the axial direction which is the direction where the central axis L of the bottle 1 is extended is substantially parallel to the up-down direction. Further, it is assumed that the radial direction and the circumferential direction are the radial direction and the circumferential direction of the bottle 1 around the central axis L, respectively.

Referring also to FIG. 2, the cap 20 is detachably attached to the outer periphery of the mouth portion 14 by screwing and can be sealed on the outer periphery of the lower portion of the mouth portion 14. A substantially annular band portion 27 and a cap portion 21 that connect the cap body 21 and the band portion 27 in a separable manner are provided. When the cap body 21 is twisted and the bridge portion 28 is broken, the cap body 21 is separated from the band portion 27 and can be opened.
The cap 20 is a resin member formed by integral molding of a thermoplastic resin (for example, polypropylene or polyethylene) as a resin.

FIG. 3 is a cross-sectional view of main parts of the cap 20 and the mouth portion 14 in a state where the mouth portion 14 of the bottle body 10 filled with carbonated water is sealed by the cap 20.
Referring to FIGS. 2 and 3, the cap body 21 includes a disc-shaped top wall 22, a peripheral wall 23 extending in a cylindrical shape downward from the outer peripheral edge of the top wall 22, and a lower surface 22 a of the top wall 22. An inner seal ring 30 and an outer seal ring 40 which are annular ridges projecting downward from the top wall 22, a top seal wall 50 which is a lower part of the top wall 22 and between the seal rings 30 and 40 in the radial direction, and a peripheral wall 23 And an internal thread 24 provided on the inner peripheral surface.
The female screw 24 is screwed with the male screw 15 provided on the outer peripheral surface 14 o of the mouth portion 14. The outer seal ring 40 is disposed radially outward with respect to the inner seal ring 30 so as to surround the inner seal ring 30, and is disposed radially inward with respect to the peripheral wall 23. Moreover, the downward protruding width W3 in the axial direction of the inner seal ring 30 is larger than the downward protruding width W4 of the outer seal ring 40 in the axial direction.

The inner seal ring 30, the outer seal ring 40, and the top seal wall 50 form a seal groove 25 into which the distal end portion 14 a of the mouth portion 14 is fitted.
The outer peripheral surface 31 of the inner seal ring 30 includes a guide portion 32 that is a tapered surface located at a lower portion of the outer peripheral surface 31 and an inner seal portion 33 that is positioned above the guide portion 32 and closer to the top wall 22. The inner peripheral surface 41 of the outer seal ring 40 has an outer seal portion 43 located at the lower portion of the inner peripheral surface 41. The lower surface 51 of the top seal wall 50 has a top seal portion 53 that is positioned closer to the outer seal ring 30 in the radial direction.

  The seal portions 33, 43, and 53 constitute a seal portion S of the cap 20 that seals between the cap 20 and the mouth portion 14 in a state where the cap 20 is attached to the mouth portion 14. The inner seal portion 33 and the outer seal portion 43 are radial seal portions, and the top seal portion 53 is an axial seal portion.

  In the cap 20 that is not attached to the mouth portion 14 (hereinafter referred to as “natural state”), the inner seal portion 33 moves from the guide portion 32 toward the lower surface 22a of the top wall 22 (that is, upward). It is a raised part which protrudes to radial direction outward. The outer seal portion 43 is a raised portion that protrudes inward in the radial direction from the lower end portion 42 of the outer seal portion 43 toward the upper side. Furthermore, the top seal portion 53 is a raised portion that projects downward from the inner seal ring 30 toward the radially outer side.

  The inner seal portion 33 has a maximum raised portion 33 a on the outer peripheral surface 31 in the vertical direction (or axial direction) close to the top wall 22 or on the upper portion of the outer peripheral surface 31. The outer seal portion 43 has a maximum raised portion 43 a on the inner peripheral surface 41 in the vertical direction and closer to the lower end portion 42 or at the lower portion of the inner peripheral surface 41. The top seal portion 53 has a maximum raised portion 53a at a position near the outer seal ring 40 in the radial direction.

  The maximum raised portion 33a is a portion where the amount of protrusion outward in the radial direction is the maximum in the inner seal portion 33, and the center in the vertical direction of the inner seal ring 30 which is a half of the protrusion width W3. Located above the position. The maximum raised portion 43a is a portion where the amount of protrusion inward in the radial direction is the maximum in the outer seal portion 43, and the center in the vertical direction of the inner seal ring 40 which is a position of 1/2 of the protrusion width W4. Located below the position. Further, the maximum raised portion 53a is a portion where the downward projecting amount is maximum in the top seal portion 53, and the top seal wall 50, which is a position half the radial width W5 of the top seal wall 50, It is located radially outward from the central position in the radial direction.

  As shown in FIGS. 2 and 3, the inner seal portion 33 is connected to the inner peripheral surface 14 i of the mouth portion 14 in a state where the cap 20 is attached to the mouth portion 14 and the mouth portion 14 is fitted in the seal groove 25. And is elastically deformed radially inward, and press-contacts the inner peripheral surface 14i with the elastic force. Similarly, the outer seal portion 43 is pressed against the outer peripheral surface 14o of the mouth portion 14 and elastically deforms radially outward, and is pressed against the outer peripheral surface 14o by the elastic force. The top seal portion 53 is 14 is pressed against the tip end surface 14e, elastically deforms upward, and presses against the tip end surface 14e with its elastic force.

  Therefore, the sealing surface which is a contact surface with the seal part S (seal part 33, 43, 53) of the cap 20 is formed in the mouth part 14 in an annular shape, here in a substantially annular shape, and continuously in the circumferential direction. The The sealing surface includes two radial sealing surfaces respectively formed on the inner peripheral surface 14i and the outer peripheral surface 14o of the mouth portion 14, and one axial sealing surface formed on the distal end surface 14e of the mouth portion 14. Consists of

Since the inner seal portion 33 is located at the upper portion of the inner seal ring 30 and closer to the top wall 50, the inner seal portion 33 and the inner peripheral surface 14i of the mouth portion 14 are compared with the case where the inner seal portion 33 is located at the lower portion of the inner seal ring 30. Since the bending due to the contact is small, the sealing pressure on the inner peripheral surface 14i can be increased.
Further, when the cap body 21 is deformed due to an increase in the internal pressure in the bottle 1 and the top wall 22 is bent upward inward in the radial direction of the inner seal ring 30, the peripheral wall 23 has a peripheral wall 23 in the top wall 22. A moment toward the central axis L (see FIG. 1) centering on the vicinity of the peripheral edge portion 22c, which is a connecting portion to (a counterclockwise moment centering on the vicinity of the peripheral edge portion 22c in FIGS. 2 and 3). Works. At this time, since the outer seal portion 43 is located below the outer seal ring 40 and closer to the lower end portion 42, the outer seal portion 43 is pressed against the outer peripheral surface 14o of the mouth portion 14 by the moment, and the seal pressure is increased. Enhanced. On the other hand, since the top seal portion 53 is located closer to the outer seal ring 40 and hence closer to the peripheral portion 22c in the top seal wall 50, the moment is greater than when the top seal portion 53 is located closer to the inner seal ring 30. A decrease in the sealing pressure due to is suppressed.

Hereinafter, as shown in FIG. 1, a transportation method when a bottle 1 in which a mouth portion 14 is sealed with a cap 20 and carbonated water is enclosed is transported from a production place as bottled carbonated water as a product. explain. Here, the production place is a place where carbonated water is filled in the bottle 1 and sealed. The carbonated water is high carbonated water having a carbon dioxide gas volume of 2.5 v / v or more.
The carbonated water bottles 1 are packed in one carton for each of a plurality of bottles, and then a large number of cartons are loaded on a pallet, and then stored in a dry container together with the pallet on which the cartons are loaded. In addition, since these pallets and dry containers are used repeatedly, various odor components may be attached.

  After that, this dry container is loaded on a container ship as a container transportation means and exposed to a high temperature environment when passing through the equator or near the equator as a high temperature area, and then transported by sea transport to the landing area. . Here, the high temperature environment means that the ambient temperature that is the ambient temperature of the bottle 1 is higher than the carbonated water temperature (for example, 15 ° C. to 22 ° C.) at the time of filling and sealing the bottle 1. This is a container environment with a high temperature range. The high temperature region temperature is, for example, a temperature of 30 ° C. or more, and is 30 ° C. or more in a dry container loaded on a container ship passing through the equator or the vicinity of the equator.

  Then, the pallet is taken out from the dry container unloaded from the container ship, and the bottle 1 is transported to a collection place such as a warehouse by a transportation means such as land transportation while being loaded on the pallet. After that, it is unloaded from the pallet and finally transported to a store by land transportation or the like and sold as bottled carbonated water.

Next, operations and effects of the embodiment configured as described above will be described.
In the beverage bottle 1 including the cap 20 that seals the mouth portion 14 of the bottle body 10 filled with unscented carbonated water, the mouth portion can be used instead of the liner in the two-piece cap because the cap 20 is a one-piece cap. Since the thickness of the part covering 14 can be increased, the temperature of carbonated water enclosed in the bottle 1 rises due to the high temperature environment (container environment) to which the carbonated water bottle 1 is exposed, Even when the internal pressure in the bottle 1 rises due to the release of carbon dioxide dissolved in the carbonated water, the transmission of a strange odor through the cap 20 can be suppressed as compared with the case of the two-piece cap. As a result, it becomes possible to improve the effect of preventing the entry of a strange odor into the bottle 1 in the container environment and to suppress the adsorption of the bad odor by the carbonated water, so that the quality of the carbonated water at the time of consumption is improved. And it is possible to provide high-quality unscented carbonated water at the time of consumption.

  The cap 20 includes a top wall 22, a peripheral wall 23 extending downward from the top wall 22, an inner seal ring 30 projecting downward from the lower surface 22 a of the top wall 22, and projecting downward from the lower surface 22 a and an inner seal. It has an outer seal ring 40 positioned around the ring 30 and a top seal wall 50 between the inner seal ring 30 and the outer seal ring 40 in the radial direction. The inner seal ring 30 is an inner peripheral surface of the mouth portion 14. The outer seal ring 33 has an outer seal portion 43 in pressure contact with the outer peripheral surface 14o of the mouth portion 14, and the top seal wall 50 is radially outward. A top seal portion 53 that is in pressure contact with the distal end surface 14 e of the mouth portion 14 is provided at a position near the seal ring 40.

With this structure, the cap 20 and the mouth portion 14 are sealed by the inner seal portion 33, the outer seal portion 43, and the top seal portion 53. Therefore, in addition to the distal end surface 14e, the inner peripheral surface 14i and the outer peripheral surface 14o The sealing performance by the cap 20 is improved.
Furthermore, since the inner seal portion 33 is located at the upper portion of the inner seal ring 30 and closer to the top wall 50, the bending pressure due to contact with the mouth portion 14 is small, thereby increasing the seal pressure with respect to the inner peripheral surface 14i. be able to. The outer seal portion 43 is located below the outer seal ring 40 and close to the lower end portion 42. Therefore, when the top wall 22 bends upward due to an increase in internal pressure in the bottle 1, it acts on the top wall 22. Due to the moment generated based on the internal pressure, the outer seal portion 43 is pressed against the outer peripheral surface 14o of the mouth portion 14 to increase the seal pressure. Further, since the top seal portion 53 is located closer to the outer seal ring 40 and thus closer to the peripheral edge portion 22c, the moment suppresses a decrease in seal pressure due to the moment.
As a result, even when the internal pressure in the bottle 1 rises, it is possible to suppress a decrease in the effect of preventing the entry of a strange odor into the bottle 1 and to suppress the adsorption of a bad odor due to carbonated water.

When the bottle 1 is loaded on a pallet, stored in a dry container, and transported by sea from a production site to a destination by a container ship, the bottle 1 is exposed to a high temperature environment while passing through the equator or near the equator. After that, the pallet is loaded in a dry container and transported.
As a result, the bottle 1 is sealed with the cap 20 to prevent off-flavors such as pallets and dry containers from being exposed to a high temperature environment in which the release of carbon dioxide from carbonated water is promoted during transportation. Intrusion into the inside is suppressed. As a result, it is possible to suppress the adsorption of off-flavors caused by carbonated water, and it is possible to transport by pallets and dry containers that are used repeatedly, and to transport at low cost.

Hereinafter, an embodiment in which a part of the configuration of the above-described embodiment is changed will be described with respect to the changed configuration.
The carbonated water may contain a fragrance, and also in this case, the odor adsorption by the carbonated water is suppressed and the quality is improved.
The container filled with carbonated water may be provided with a bottle body 10 other than resin, or may be other than a bottle.
The bottle 1 containing carbonated water may be in a state where there is no pallet or container as long as the container environment has an unpleasant odor. For example, the bottle 1 is transported in a state where the bottle is accommodated only in a paper carton. Also good.
The bottle 1 in which carbonated water is sealed at the production site may be transported by means other than sea transportation. The high temperature area where the bottle 1 is exposed to the high temperature environment may be an area other than the equator or the vicinity of the equator.

1 bottle (container)
10 Bottle body (container body)
14 mouth portion 20 cap 22 top wall 22a lower surface 22c peripheral edge portion 30 inner seal ring 33 inner seal portion 40 outer seal ring 43 outer seal portion 50 top seal wall 53 top seal portion

Claims (4)

In a beverage container comprising a container body filled with a beverage and a cap for sealing the mouth of the container body,
The beverage is carbonated water;
A beverage container, wherein the cap is a one-piece cap. The beverage container according to claim 1,
The beverage container, wherein the carbonated water is unscented carbonated water. The beverage container according to claim 1 or 2,
The cap includes a top wall, a peripheral wall extending downward from the top wall, an inner seal ring projecting downward from a lower surface of the top wall, and projecting downward from the lower surface and surrounding the inner seal ring An outer seal ring located and a top seal wall between the inner seal ring and the outer seal ring in a radial direction;
The inner seal ring has an inner seal portion that is in pressure contact with the inner peripheral surface of the mouth portion,
The outer seal ring has an outer seal portion that is in pressure contact with the outer peripheral surface of the mouth portion,
The beverage container according to claim 1, wherein the top seal wall includes a top seal portion that is in pressure contact with a distal end surface of the mouth portion. The method for transporting a beverage container according to any one of claims 1 to 3, wherein the carbonated water is enclosed.
The container for beverage that has been exposed to an environment higher in temperature than the carbonated water at the time of filling and sealing the container body during transportation is loaded in a dry container and transported while being loaded on a pallet. A transportation method characterized by the above.

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