EP3521195B1 - Cap for use with bottle having positive internal pressure, and bottle with cap attached thereto - Google Patents
Cap for use with bottle having positive internal pressure, and bottle with cap attached thereto Download PDFInfo
- Publication number
- EP3521195B1 EP3521195B1 EP17926420.5A EP17926420A EP3521195B1 EP 3521195 B1 EP3521195 B1 EP 3521195B1 EP 17926420 A EP17926420 A EP 17926420A EP 3521195 B1 EP3521195 B1 EP 3521195B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bottle
- cap
- screw part
- circumferential surface
- male screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 7
- 235000014171 carbonated beverage Nutrition 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 244000299461 Theobroma cacao Species 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 235000016213 coffee Nutrition 0.000 description 1
- 235000013353 coffee beverage Nutrition 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 235000013555 soy sauce Nutrition 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
- B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
- B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
- B65D51/1688—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads
Definitions
- the present invention relates to a cap used for a bottle with a cap, the bottle adapted to have positive inner pressure and a bottle with the cap attached.
- a typical example of a conventional cap attached to a bottle is disclosed in Japanese Unexamined Patent Application Publication No. 2015-9853 .
- the cap 100 includes a female screw part 101 engageable with a male screw part formed on an outer circumferential surface of a bottle mouth.
- the female screw part 101 is formed of a plurality of projections 102 running intermittently in a circumferential direction.
- a bottle filled with carbonated drink for example, has positive inner pressure. If the inner pressure of the bottle increases when stored in a high-temperature atmosphere, for example, a top 103 of the cap 100 may be pushed up and then a side wall 104 also may be pushed up entrained by the action of the top 103 as shown in Fig. 6 . Such a condition may break a sealing condition of the bottle mouth established by the cap, which might lead to leakage of the contents.
- JP S53 30450 U discloses a container mouth sealed with a cap by screwing a screw thread thereon, which is a female screw formed on the inner periphery of the cap and a male screw formed on the container mouth.
- EP 0 009 854 A1 relates to bottles, having screw-threaded necks and to caps for such containers, adapted to release the inner pressure inside the bottle upon its opening by the user, according to the preamble of claim 1.
- the cap side wall 104 is pushed up because it has stretched in the circumferential direction and then deformed to bulge outward.
- the conventional cap 100 which includes the female screw part 101 having the plurality of projections 102 running intermittently in the circumferential direction, cannot satisfactorily prevent the cap side wall 104 from stretching in the circumferential direction and thus cannot effectively prevent leakage of the contents.
- the object of the present invention is to provide a bottle with a cap that effectively prevents leakage of the contents of a bottle.
- the present invention relates to a bottle having positive inner pressure with a cap.
- the bottle includes a male screw part formed at an outer circumferential surface of a bottle mouth and the male screw part includes a plurality of projections radially protruding from the outer circumferential surface of the bottle mouth and running intermittently in spiral.
- the cap comprises a female screw part engageable with the male screw part.
- the female screw part includes a circumferential projection protruding from an inner circumferential surface of a cap side wall and continuously extending in spiral through at least 360 degrees.
- the circumferential projection is radially cut away in part to form at least one cutaway portion and the cutaway portion is positioned to correspond to each of gaps of the male screw part.
- the present invention provides a bottle with a cap, the bottle being adapted to have positive inner pressure, in accordance with appended claim 1.
- the female screw part includes a circumferential projection continuously extending in spiral through at least 360 degrees, can effectively prevent the cap side wall from stretching in the circumferential direction and easily bulging outward and thus from being pushed up. Additionally, the cutaway portion formed by radially cutting the circumferential projection in part acts a gas vent to allow gas to escape when the cap is opened, which ensures safety in opening the cap.
- the at least one cutaway portion includes a plurality of cutaway portions provided at regular intervals.
- Providing the plurality of cutaway portions are provided at regular intervals contributes to weight reduction and providing them at regular intervals contributes to uniform strength of the cap, which can prevent deformation of the cap side wall more effectively.
- the at least one cutaway portion has an arc edge.
- the cutaway portion has a stepped edge
- the male screw part of the bottle mouth would interfere with the cutaway portion when the cap is attached to the bottle mouth, which might hamper smooth attachment of the cap to the bottle.
- the above arrangement, in which the cutaway portion has the arc edge effectively prevents the male screw part of the bottle mouth from interfering with the cutaway portion when the cap is attached to the bottle mouth to allow the cap to be smoothly attached to the bottle.
- the cap further includes an outer seal for sealing the outer circumferential surface of the bottle mouth, and a rib provided between the outer seal and the inner circumferential surface of the cap side wall for connecting them to each other.
- the above arrangement effectively prevents deformation of the seal, the cap top or the side wall, as a result of which leakage of the contents of the bottle can be effectively prevented.
- the cap is used for a bottle containing carbonated drink.
- the cap according to the present invention can effectively prevent leakage of the contents owing to increase in inner pressure of the bottle, and thus is useful for a bottle filled with carbonated drink that would increase inner pressure easily.
- the cap is used for a bottle having an outer diameter of 25 mm or larger in the bottle mouth.
- the cap having the structure according to the current embodiment is particularly useful for effectively preventing leakage of the contents even if the diameter of the cap increases with the outer diameter of 25 mm or larger in the bottle mouth.
- the cap 20 prevents breakage of a sealing condition of a bottle mouth 10 established by the cap 20 when inner pressure of the bottle increases and thus prevents leakage of contents of the bottle.
- the cap is used for a bottle adapted to have positive inner pressure, and in particular, a bottle for containing carbonated drink in the current embodiment.
- the bottle mouth 10 is shown in Fig. 1 .
- the bottle mouth 10 includes a male screw part 11 formed in an outer circumferential surface 10A thereof. More particularly, the male screw part 11 includes a plurality of projections 12 radially protruding from the outer circumferential surface 10A of the bottle mouth 10 and running intermittently in spiral. One or more gaps 13 defined in adjacent projections 12 act as gas vents that allow gas escaped from liquid within the bottle to pass out of the bottle.
- the bottle mouth 10 has an outer diameter of 35 mm in the current embodiment.
- the outer diameter of the bottle mouth 10 is not limited to such a size, but is preferably 25 mm or larger, and more preferably 28 mm and larger.
- the larger the diameter of the bottle mouth 10 becomes the more the risk of leakage of the contents due to rise in inner pressure increases. Accordingly, the combination of the cap 20 and the bottle mouth 10 that can effectively prevent leakage of the contents as described herein is particularly useful.
- the bottle may be a commercially available bottle that is primarily made of thermoplastic resin such as polyethylene, polypropylene and polyethylene terephthalate and integrally formed by stretch molding such as biaxial stretch blow molding.
- the capacity of the bottle is not particularly specified, but typically ranging from 200 mL to 2L that are common in the market.
- the bottle is filled with carbonated drink in the current embodiment, but may be filled with any other liquid that causes positive inner pressure after charged or with nitrogen charged, including drinkables such as drinking water, tea, juice, coffee, cocoa, freshener, alcohol drink, lactic drink and soup as well as liquid seasoning such as sauce and soy sauce.
- the cap 20 includes a female screw part 21 engageable with the male screw part 11.
- the female screw part 21 forms a circumferential projection 22 protruding from an inner circumferential surface 25A of a cap side wall 25 and continuously extending in spiral through at least 360 degrees (680 degrees in the current embodiment). More particularly, while the male screw part 11 of the bottle mouth 10 is formed of the plurality of projections running discontinuously and spaced from each other with the gaps 13, the female screw part 21 is formed of the single circumferential projection 22 running continuously in spiral through at least 360 degrees, i.e., making at least a round of the cap. This arrangement can effectively prevent leakage of the contents of the bottle.
- the contents or liquid would escape from the bottle when a top 24 of the cap 20 is pushed up with increase in inner pressure of the bottle, and the cap side wall 25 is also pushed up entrained with the action of the top 24. Such a condition would break a sealing condition of the bottle mouth 10 established by the cap 20.
- the female screw part 21 forming the circumferential projection 22 running continuously in spiral through at least 360 degrees can effectively prevent the cap side wall 25 from stretching in the circumferential direction and easily bulging outward and thus from being pushed up.
- the circumferential projection 22 is radially cut away in part (that is, so as not to reach the inner circumferential surface 25A of the cap side wall 25) to form at least one cutaway portion 23.
- a plurality of cutaway portions are provided at regular intervals. Providing the plurality of cutaway portions contributes to weight reduction and providing them at regular intervals contributes to uniform strength of the cap 20, which can prevent deformation of the cap side wall 25 more effectively.
- each cutaway portion 23 is positioned to correspond to each of the gaps 13 of the male screw part 11. Additionally, the cutaway portion 23 has a gentle and smooth arc edge 23a.
- the cutaway portion 23 may have any desired depth that does not reach the inner circumferential surface 25A of the cap side wall 25, preferably a depth of 20 to 80% of a projecting height of the circumferential projection 22. While a depth of less than 20% of the projecting height would prevent bulging of the cap side wall 25 less easily, a depth of more than 80% of the projecting height would secure the gas vent less easily and hamper weight reduction.
- the top 24 of the cap 20 has an inner surface 24A provided with an inner seal 26 for sealing a distal end portion of the bottle mouth 10 from an inner circumferential surface thereof, and an outer seal 27 for sealing the distal end portion of the bottle mouth 10 from the outer circumferential surface 10A thereof.
- the distal end portion of the bottle mouth 10 is held between the inner seal 26 and the outer seal 27 to seal the bottle mouth 10.
- a plurality of ribs 28 (fourteen ribs in the current embodiment) are provided between the outer seal 27 and the inner circumferential surface 25A of the cap side wall 25 to connect them to each other, and a plurality of ribs 29 (fourteen ribs in the current embodiment) are provided between the inner seal 26 and the outer seal 27 to connect them to each other.
- the ribs 28 and 29 are provided at equal intervals in the circumferential direction. More particularly, each rib 28 radially diagonally extends between the outer seal 27 and the inner circumferential surface 25A of the cap side wall 25, and each rib 29 radially extends between the inner seal 26 and the outer seal 27.
- each rib 29 is located in a circumferential intermediate position between adjacent ribs 28, and each rib 28 is located in a circumferential intermediate position between adjacent ribs 29, thereby to effectively prevent deformation of the cap top and leakage of the contents or liquid.
- the female screw part 21 is formed of the single circumferential projection 22.
- the female screw part 21 may include a plurality of projections spaced apart from each other in the same manner as the male screw part 11, in which at least one of the projections may form the circumferential projection 22 extending continuously through at least 360 degrees.
- the plurality of ribs 28 are provided at equal intervals between the outer seal 27 and the inner circumferential surface 25A of the cap side wall 25 to connect them to each other, and the plurality of ribs 29 are provided at equal intervals between the inner seal 26 and the outer seal 27 to connect them to each other.
- the number of the ribs 28 and 29 may vary at need, and the ribs 28 and 29 may not be necessarily provided at equal intervals. Additionally, both of or one of the outer ribs 28 and the inner ribs 29 are dispensable.
- the present invention is applicable to a bottle with a cap, the bottle being adapted to have positive inner pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Description
- The present invention relates to a cap used for a bottle with a cap, the bottle adapted to have positive inner pressure and a bottle with the cap attached.
- A typical example of a conventional cap attached to a bottle is disclosed in
Japanese Unexamined Patent Application Publication No. 2015-9853 - Referring to
Fig. 5 in the current application showing the conventional cap, thecap 100 includes afemale screw part 101 engageable with a male screw part formed on an outer circumferential surface of a bottle mouth. Thefemale screw part 101 is formed of a plurality ofprojections 102 running intermittently in a circumferential direction. - A bottle filled with carbonated drink, for example, has positive inner pressure. If the inner pressure of the bottle increases when stored in a high-temperature atmosphere, for example, a
top 103 of thecap 100 may be pushed up and then aside wall 104 also may be pushed up entrained by the action of thetop 103 as shown inFig. 6 . Such a condition may break a sealing condition of the bottle mouth established by the cap, which might lead to leakage of the contents. -
JP S53 30450 U -
EP 0 009 854 A1 relates to bottles, having screw-threaded necks and to caps for such containers, adapted to release the inner pressure inside the bottle upon its opening by the user, according to the preamble of claim 1. - The
cap side wall 104 is pushed up because it has stretched in the circumferential direction and then deformed to bulge outward. Theconventional cap 100, which includes thefemale screw part 101 having the plurality ofprojections 102 running intermittently in the circumferential direction, cannot satisfactorily prevent thecap side wall 104 from stretching in the circumferential direction and thus cannot effectively prevent leakage of the contents. - To eliminate the above disadvantages, the object of the present invention is to provide a bottle with a cap that effectively prevents leakage of the contents of a bottle.
- The invention is defined by independent claim 1. Further embodiments of the invention are defined by the dependent claims.
- The present invention relates to a bottle having positive inner pressure with a cap. The bottle includes a male screw part formed at an outer circumferential surface of a bottle mouth and the male screw part includes a plurality of projections radially protruding from the outer circumferential surface of the bottle mouth and running intermittently in spiral. The cap comprises a female screw part engageable with the male screw part. The female screw part includes a circumferential projection protruding from an inner circumferential surface of a cap side wall and continuously extending in spiral through at least 360 degrees. The circumferential projection is radially cut away in part to form at least one cutaway portion and the cutaway portion is positioned to correspond to each of gaps of the male screw part.
- The present invention provides a bottle with a cap, the bottle being adapted to have positive inner pressure, in accordance with appended claim 1.
- The above arrangement, in which the female screw part includes a circumferential projection continuously extending in spiral through at least 360 degrees, can effectively prevent the cap side wall from stretching in the circumferential direction and easily bulging outward and thus from being pushed up. Additionally, the cutaway portion formed by radially cutting the circumferential projection in part acts a gas vent to allow gas to escape when the cap is opened, which ensures safety in opening the cap.
- According to one preferable embodiment, the at least one cutaway portion includes a plurality of cutaway portions provided at regular intervals.
- Providing the plurality of cutaway portions are provided at regular intervals contributes to weight reduction and providing them at regular intervals contributes to uniform strength of the cap, which can prevent deformation of the cap side wall more effectively.
- According to one preferable embodiment, the at least one cutaway portion has an arc edge.
- If the cutaway portion has a stepped edge, the male screw part of the bottle mouth would interfere with the cutaway portion when the cap is attached to the bottle mouth, which might hamper smooth attachment of the cap to the bottle. The above arrangement, in which the cutaway portion has the arc edge, effectively prevents the male screw part of the bottle mouth from interfering with the cutaway portion when the cap is attached to the bottle mouth to allow the cap to be smoothly attached to the bottle.
- According to one preferable embodiment, the cap further includes an outer seal for sealing the outer circumferential surface of the bottle mouth, and a rib provided between the outer seal and the inner circumferential surface of the cap side wall for connecting them to each other.
- The above arrangement effectively prevents deformation of the seal, the cap top or the side wall, as a result of which leakage of the contents of the bottle can be effectively prevented.
- According to one preferable embodiment, the cap is used for a bottle containing carbonated drink.
- The cap according to the present invention can effectively prevent leakage of the contents owing to increase in inner pressure of the bottle, and thus is useful for a bottle filled with carbonated drink that would increase inner pressure easily.
- According to one preferable embodiment, the cap is used for a bottle having an outer diameter of 25 mm or larger in the bottle mouth.
- Typically, the larger the diameter of the cap becomes, the greater an amount deformation becomes, even though a rate of deformation is the same. Although the risk of leakage of the contents due to rise in inner pressure increases in such a condition, the cap having the structure according to the current embodiment is particularly useful for effectively preventing leakage of the contents even if the diameter of the cap increases with the outer diameter of 25 mm or larger in the bottle mouth.
-
-
Fig. 1 is a front view of a bottle mouth; -
Fig. 2 is a partially sectional front view of a cap; -
Fig. 3 is a sectional view of the cap taken on line III-III inFig. 2 ; -
Fig. 4 is a sectional view of the cap taken on line IV-IV inFig. 2 ; -
Fig. 5 is a partially sectional front view of a conventional cap; and -
Fig. 6 is an explanatory representation showing a condition with inner pressure increasing. - A combination of a cap and a bottle according to the present invention will be described in detail hereinafter in reference to the accompanying drawings. In the present invention, the
cap 20 prevents breakage of a sealing condition of abottle mouth 10 established by thecap 20 when inner pressure of the bottle increases and thus prevents leakage of contents of the bottle. The cap is used for a bottle adapted to have positive inner pressure, and in particular, a bottle for containing carbonated drink in the current embodiment. - The
bottle mouth 10 according to the present invention is shown inFig. 1 . Thebottle mouth 10 includes amale screw part 11 formed in an outercircumferential surface 10A thereof. More particularly, themale screw part 11 includes a plurality ofprojections 12 radially protruding from the outercircumferential surface 10A of thebottle mouth 10 and running intermittently in spiral. One ormore gaps 13 defined inadjacent projections 12 act as gas vents that allow gas escaped from liquid within the bottle to pass out of the bottle. Thebottle mouth 10 has an outer diameter of 35 mm in the current embodiment. The outer diameter of thebottle mouth 10 is not limited to such a size, but is preferably 25 mm or larger, and more preferably 28 mm and larger. Typically, the larger the diameter of thebottle mouth 10 becomes, the more the risk of leakage of the contents due to rise in inner pressure increases. Accordingly, the combination of thecap 20 and thebottle mouth 10 that can effectively prevent leakage of the contents as described herein is particularly useful. - The bottle may be a commercially available bottle that is primarily made of thermoplastic resin such as polyethylene, polypropylene and polyethylene terephthalate and integrally formed by stretch molding such as biaxial stretch blow molding. The capacity of the bottle is not particularly specified, but typically ranging from 200 mL to 2L that are common in the market. The bottle is filled with carbonated drink in the current embodiment, but may be filled with any other liquid that causes positive inner pressure after charged or with nitrogen charged, including drinkables such as drinking water, tea, juice, coffee, cocoa, freshener, alcohol drink, lactic drink and soup as well as liquid seasoning such as sauce and soy sauce.
- Referring to
Figs. 2 and3 , thecap 20 according to the present invention includes afemale screw part 21 engageable with themale screw part 11. Thefemale screw part 21 forms acircumferential projection 22 protruding from an innercircumferential surface 25A of acap side wall 25 and continuously extending in spiral through at least 360 degrees (680 degrees in the current embodiment). More particularly, while themale screw part 11 of thebottle mouth 10 is formed of the plurality of projections running discontinuously and spaced from each other with thegaps 13, thefemale screw part 21 is formed of the singlecircumferential projection 22 running continuously in spiral through at least 360 degrees, i.e., making at least a round of the cap. This arrangement can effectively prevent leakage of the contents of the bottle. The contents or liquid would escape from the bottle when atop 24 of thecap 20 is pushed up with increase in inner pressure of the bottle, and thecap side wall 25 is also pushed up entrained with the action of thetop 24. Such a condition would break a sealing condition of thebottle mouth 10 established by thecap 20. In this, thefemale screw part 21 forming thecircumferential projection 22 running continuously in spiral through at least 360 degrees can effectively prevent thecap side wall 25 from stretching in the circumferential direction and easily bulging outward and thus from being pushed up. - Further describing the present invention, to provide a gas vent, the
circumferential projection 22 is radially cut away in part (that is, so as not to reach the innercircumferential surface 25A of the cap side wall 25) to form at least onecutaway portion 23. In the current embodiment, a plurality of cutaway portions are provided at regular intervals. Providing the plurality of cutaway portions contributes to weight reduction and providing them at regular intervals contributes to uniform strength of thecap 20, which can prevent deformation of thecap side wall 25 more effectively. When thecap 20 is attached to thebottle mouth 10, eachcutaway portion 23 is positioned to correspond to each of thegaps 13 of themale screw part 11. Additionally, thecutaway portion 23 has a gentle and smooth arc edge 23a. This effectively prevents themale screw part 11 of thebottle mouth 10 from interfering with thecutaway portion 23 when thecap 20 is attached to thebottle mouth 10 to allow thecap 20 to be smoothly attached to the bottle. Thecutaway portion 23 may have any desired depth that does not reach the innercircumferential surface 25A of thecap side wall 25, preferably a depth of 20 to 80% of a projecting height of thecircumferential projection 22. While a depth of less than 20% of the projecting height would prevent bulging of thecap side wall 25 less easily, a depth of more than 80% of the projecting height would secure the gas vent less easily and hamper weight reduction. - Referring to
Figs. 2 and4 , the top 24 of thecap 20 has aninner surface 24A provided with aninner seal 26 for sealing a distal end portion of thebottle mouth 10 from an inner circumferential surface thereof, and anouter seal 27 for sealing the distal end portion of thebottle mouth 10 from the outercircumferential surface 10A thereof. The distal end portion of thebottle mouth 10 is held between theinner seal 26 and theouter seal 27 to seal thebottle mouth 10. A plurality of ribs 28 (fourteen ribs in the current embodiment) are provided between theouter seal 27 and the innercircumferential surface 25A of thecap side wall 25 to connect them to each other, and a plurality of ribs 29 (fourteen ribs in the current embodiment) are provided between theinner seal 26 and theouter seal 27 to connect them to each other. Theribs rib 28 radially diagonally extends between theouter seal 27 and the innercircumferential surface 25A of thecap side wall 25, and eachrib 29 radially extends between theinner seal 26 and theouter seal 27. In the current embodiment, eachrib 29 is located in a circumferential intermediate position betweenadjacent ribs 28, and eachrib 28 is located in a circumferential intermediate position betweenadjacent ribs 29, thereby to effectively prevent deformation of the cap top and leakage of the contents or liquid. - Finally, alternative embodiments of the cap and the bottle according to the present invention will be described hereinafter. The arrangement disclosed in any one of the following embodiments may be combined with any other embodiment if there is no inconsistency.
- [1] According to the above fist embodiment, the
female screw part 21 is formed of the singlecircumferential projection 22. Instead, thefemale screw part 21 may include a plurality of projections spaced apart from each other in the same manner as themale screw part 11, in which at least one of the projections may form thecircumferential projection 22 extending continuously through at least 360 degrees. - [2] According the above first embodiment, the plurality of
ribs 28 are provided at equal intervals between theouter seal 27 and the innercircumferential surface 25A of thecap side wall 25 to connect them to each other, and the plurality ofribs 29 are provided at equal intervals between theinner seal 26 and theouter seal 27 to connect them to each other. The number of theribs ribs outer ribs 28 and theinner ribs 29 are dispensable. - [3] It is noted that the foregoing embodiments have been provided merely for the purpose of explanation and are in no way to be construed as limiting the present invention. Thus, it is understood by a person of ordinary skill in the art that changes and various variations and modifications may be possible without departing from the scope of the appended claims.
- The present invention is applicable to a bottle with a cap, the bottle being adapted to have positive inner pressure.
-
- 10
- bottle mouth
- 10A
- outer circumferential surface
- 11
- male screw part
- 20
- cap
- 21
- female screw part
- 22
- circumferential projection
- 23
- cutaway portion
- 25
- cap side wall
- 25A
- inner circumferential surface
- 26
- inner seal
- 27
- outer seal
- 28
- rib
Claims (6)
- A bottle with a cap (20), the bottle being adapted to have positive inner pressurewherein the bottle includes a male screw part (11) formed at an outer circumferential surface (10A) of a bottle mouth (10),wherein the male screw part (11) includes a plurality of projections (12) radially protruding from the outer circumferential surface (10A) of the bottle mouth (10) and running intermittently in spiral, wherein at least one gap (13) configured to act as a gas vent is defined in adjacent projections (12),wherein the cap (20) comprises a female screw part (21) engageable with the male screw part (11),wherein the female screw part (21) includes a circumferential projection (22) protruding from an inner circumferential surface (25A) of a cap side wall (25) and continuously extending in spiral through at least 360 degrees,wherein the circumferential projection (22) is radially cut away in part to form at least one cutaway portion (23), characterized in that at least one, respectively each, cutaway portion (23) is positioned to correspond to the at least one, respectively each, gap (13) of the male screw part (11).
- The bottle according to claim 1, wherein the circumferential projection (22) is radially cut away in part to form a plurality of cutaway portions (23), and wherein the plurality of cutaway portions (23) is provided at regular intervals.
- The bottle according to claim 2, wherein the at least one cutaway portion has an arc edge.
- The bottle according to any one of claims 1 to 3, further comprising:an outer seal (27) for sealing the outer circumferential surface (10A) of the bottle mouth (10); anda rib (28) provided between the outer seal (27) and the inner circumferential surface (25A) of the cap side wall (25) for connecting them to each other.
- The bottle according to any of claims 1 to 4 having an outer diameter of 25 mm or larger in the bottle mouth (10).
- Use of a bottle according to any one of claims 1 to 5 for containing carbonated drink.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2017/035289 WO2019064450A1 (en) | 2017-09-28 | 2017-09-28 | Cap for use with bottle having positive internal pressure, and bottle with cap attached thereto |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3521195A1 EP3521195A1 (en) | 2019-08-07 |
EP3521195A4 EP3521195A4 (en) | 2020-07-22 |
EP3521195B1 true EP3521195B1 (en) | 2021-12-22 |
Family
ID=65902731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17926420.5A Active EP3521195B1 (en) | 2017-09-28 | 2017-09-28 | Cap for use with bottle having positive internal pressure, and bottle with cap attached thereto |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3521195B1 (en) |
JP (1) | JP6956749B2 (en) |
CN (1) | CN111132908B (en) |
ES (1) | ES2902326T3 (en) |
WO (1) | WO2019064450A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT202100001430A1 (en) * | 2021-01-26 | 2022-07-26 | Sacmi | CAP FOR CONTAINER. |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5330450U (en) * | 1976-08-20 | 1978-03-15 | ||
CA1147294A (en) * | 1978-09-15 | 1983-05-31 | John H. Guest | Containers having screw-threaded necks and caps for such containers |
US4657221A (en) * | 1986-04-22 | 1987-04-14 | Aluminum Company Of America | Male core for forming vent slots in a thermoplastic closure |
JPS63162465A (en) * | 1986-10-07 | 1988-07-06 | エチル モルデッド プロダクツ カンパニー | Thermoplastic cover member |
JPS63162455A (en) * | 1986-12-23 | 1988-07-06 | 味の素株式会社 | Plastic vessel |
JPH0633098B2 (en) * | 1987-04-21 | 1994-05-02 | 東洋製罐株式会社 | Plastic cap |
DE3839351A1 (en) * | 1988-11-22 | 1990-05-31 | Berg Jacob Gmbh Co Kg | SCREW CAP FOR BOTTLES WITH VENTILATION DEVICE |
EG21314A (en) * | 1992-07-16 | 2000-10-31 | Driutt Rodney Malcolm | Tamper evident closure |
CA2242344C (en) * | 1996-01-30 | 2005-11-15 | Crown Cork Ag | Bottle finish and closure cap with double screw thread |
JPH10203551A (en) * | 1997-01-22 | 1998-08-04 | Kishimoto Akira | Sealed container |
GB2409200B (en) * | 2003-12-19 | 2007-01-17 | Beeson & Sons Ltd | Bottle and closure assembly with improved locking elements |
JP2005193913A (en) * | 2003-12-26 | 2005-07-21 | Alcoa Closure Systems Japan Ltd | Cap made of synthetic resin, enclosing apparatus and beverage filled in container |
US20080110851A1 (en) * | 2006-10-13 | 2008-05-15 | Owens-Illinois Closure Inc. | Dual seal closure and package |
WO2008131199A1 (en) * | 2007-04-19 | 2008-10-30 | Closure Systems International, Inc. | Package with closure having rotation-inhibiting projections |
CN101367453A (en) * | 2007-08-16 | 2009-02-18 | 上海紫日包装有限公司 | Single-sheet plastic bottle cap |
JP5691028B2 (en) * | 2009-12-25 | 2015-04-01 | サントリー食品インターナショナル株式会社 | Bottles and bottles with contents |
JP6207896B2 (en) | 2013-06-28 | 2017-10-04 | 日本クロージャー株式会社 | Plastic cap and polyester bottle with cap |
JP6595579B2 (en) * | 2015-03-24 | 2019-10-23 | サントリーホールディングス株式会社 | Plastic container lid structure |
CN205366465U (en) * | 2016-01-19 | 2016-07-06 | 广州雅塑包装技术服务有限公司 | Multilayer composite forming bottle lid |
-
2017
- 2017-09-28 CN CN201780044481.8A patent/CN111132908B/en active Active
- 2017-09-28 ES ES17926420T patent/ES2902326T3/en active Active
- 2017-09-28 EP EP17926420.5A patent/EP3521195B1/en active Active
- 2017-09-28 JP JP2018566320A patent/JP6956749B2/en active Active
- 2017-09-28 WO PCT/JP2017/035289 patent/WO2019064450A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN111132908A (en) | 2020-05-08 |
EP3521195A4 (en) | 2020-07-22 |
JPWO2019064450A1 (en) | 2020-09-10 |
JP6956749B2 (en) | 2021-11-02 |
CN111132908B (en) | 2022-07-05 |
EP3521195A1 (en) | 2019-08-07 |
WO2019064450A1 (en) | 2019-04-04 |
ES2902326T3 (en) | 2022-03-28 |
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