WO2015194040A1 - 樹脂製キャップ - Google Patents

樹脂製キャップ Download PDF

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Publication number
WO2015194040A1
WO2015194040A1 PCT/JP2014/066452 JP2014066452W WO2015194040A1 WO 2015194040 A1 WO2015194040 A1 WO 2015194040A1 JP 2014066452 W JP2014066452 W JP 2014066452W WO 2015194040 A1 WO2015194040 A1 WO 2015194040A1
Authority
WO
WIPO (PCT)
Prior art keywords
thin
contact
container mouth
resin cap
inner ring
Prior art date
Application number
PCT/JP2014/066452
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
高野力
小林俊也
Original Assignee
サントリーホールディングス株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by サントリーホールディングス株式会社 filed Critical サントリーホールディングス株式会社
Priority to SG11201610573SA priority Critical patent/SG11201610573SA/en
Priority to JP2016528756A priority patent/JP6671280B2/ja
Priority to PCT/JP2014/066452 priority patent/WO2015194040A1/ja
Priority to TW104117163A priority patent/TWI568646B/zh
Publication of WO2015194040A1 publication Critical patent/WO2015194040A1/ja

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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

Definitions

  • the present invention relates to a detachable resin cap used for a mouth portion of a container such as a plastic bottle.
  • the top plate portion As such a resin cap, the top plate portion, the cylindrical portion hanging from the periphery of the top plate portion, the outer ring formed on the inner surface of the top plate portion and in contact with the outer peripheral surface of the container mouth portion, and the top plate
  • An inner ring formed on the inner surface of the container and in contact with the inner peripheral surface of the container mouth, and the container mouth with the inner ring having a longer length (vertical distance from the top plate) than the outer ring and the outer ring. What seals a container by pinching is widely used.
  • Patent Document 1 there is a method of setting the thickness of the upper end surface to 50% or less of the thickness of the portion where the thread is formed.
  • Patent Document 1 if the tip of the container mouth portion is thinned, the rigidity of the container mouth portion is reduced. Therefore, when the resin cap is attached to the container mouth portion, The container mouth may fall down (falling into the interior) due to pressure.
  • the present invention has been made in view of such a situation, and provides a resin cap that is less likely to cause the container mouth to fall down even when mounted on a container mouth with a thin tip. For the purpose.
  • a characteristic configuration of the resin cap according to the present invention is mounted on a container mouth portion, formed on the top plate portion, a cylindrical portion depending from the periphery of the top plate portion, and an inner surface of the top plate portion, and the container mouth An outer ring in contact with the outer peripheral surface of the portion, and an inner ring formed on the inner surface of the top plate portion and in contact with the inner peripheral surface of the container mouth portion, wherein the container mouth portion At least the tip portion is formed with a thin portion that is thinned by being cut out from the inner peripheral surface side, and the inner ring is in contact with the thin portion.
  • the thin portion can be supported (reinforced) from the direction opposite to the pressure applied to the thin portion from the outer ring by bringing the inner ring into contact with the thin portion whose rigidity has been reduced by thinning. Therefore, it is possible to effectively suppress the internal fall of the container mouth.
  • a further characteristic configuration of the present invention is that the thin-walled portion is formed so that the thickness gradually decreases toward the tip.
  • the contact time between the inner ring and the thin portion can be lengthened to prevent the container from being released early.
  • a further characteristic configuration of the present invention is that a plurality of the inner rings are formed, at least one of which is in contact with the thin portion.
  • the container mouth part has the thin part and the body part that is not thinned in this order from the tip, and at least one of the plurality of inner rings is It is in contact with the thin-walled portion, and at least one point is in contact with the main body portion.
  • the inner ring may be exposed to the contents of the container, so that the sealing performance of the container may be deteriorated.
  • the inner ring that contacts the main body portion is the contents of the container. Even if the inner ring is exposed, the inner ring that contacts the thin-walled portion is not exposed to the contents of the container, so that the sealing property of the container can be maintained well.
  • the container mouth portion includes a first thin portion and a second thin portion having a shape different from that of the first thin portion and having a maximum thickness larger than that of the first thin portion.
  • at least one of the plurality of inner rings is in contact with the first thin portion, and at least one is in contact with the second thin portion.
  • the sealing property and tamper evidence property of the container can be improved while enhancing the effect of suppressing the inward collapse of the container mouth, as described above.
  • the inner ring may be exposed to the contents of the container, so that the hermeticity of the container may be deteriorated.
  • the inner ring that contacts the second thin portion is not in the container. Even if it is exposed to the contents, the inner ring that contacts the first thin portion is not exposed to the contents of the container, so that the sealing property of the container can be maintained well.
  • a convex curved surface portion protruding in a curved shape toward the radially outer side of the inner ring is formed at least at a tip portion of the inner ring, and the convex curved surface portion is the thin portion. It is at the point of contact.
  • the direction of the pressure applied from the inner seal to the container mouth is in the lateral direction.
  • the convex surface of the inner ring causes not only the lateral direction but also the longitudinal direction to the container mouth. Pressure can be applied to the container, thereby improving the hermeticity of the container.
  • the convex curved surface portion there is an effect of reducing resistance (capping resistance) when a resin cap is attached to the container mouth portion.
  • a plurality of projecting portions are formed on the outer peripheral surface of the inner ring so as to project outward in the radial direction of the inner ring and to contact the inner peripheral surface of the container mouth portion. And at least one of them is in contact with the thin-walled portion.
  • the container mouth part has the thin part and the body part that is not thinned in this order from the tip, and at least one of the plurality of projecting parts is It is in contact with the thin-walled portion, and at least one point is in contact with the main body portion.
  • the inner ring may be exposed to the contents of the container, so that the sealing performance of the container may be deteriorated. Even if it is exposed to, the protrusion part which contacts a thin part is not exposed to the contents of a container, Therefore The airtightness of a container can be maintained favorable.
  • the thin-walled portion has a first thin-walled portion and a second thin-walled portion having a different shape from the first thin-walled portion and having a maximum thickness larger than that of the first thin-walled portion.
  • at least one of the plurality of protruding portions is in contact with the first thin portion, and at least one is in contact with the second thin portion.
  • the sealing property and tamper evidence property of the container can be improved while enhancing the effect of suppressing the inward collapse of the container mouth, as described above.
  • the inner ring may be exposed to the contents of the container, so that the sealing performance of the container may be deteriorated.
  • the protruding portion that comes into contact with the second thin-walled portion is provided on the container. Even if it is exposed to the contents, the projecting portion that contacts the first thin-walled portion is not exposed to the contents of the container, so that the hermeticity of the container can be maintained well.
  • the outer ring is cut obliquely from the inner peripheral surface side so that the thickness gradually decreases toward the tip, and the inner side in the radial direction of the base portion of the outer ring in a plan view
  • the end portion of the container is configured so as to be inside the end portion on the radially outer side of the distal end portion of the container mouth portion.
  • the pressure applied from the outer ring to the container mouth portion can be increased to improve the sealing performance of the container.
  • the container mouth portion tends to fall inward, but in the present invention, the container mouth portion that tends to fall inward is thin. Since the portion is supported by the inner ring, even if the pressure from the outer ring applied to the container mouth portion is increased, the container mouth portion is unlikely to fall down.
  • FIG. 3 is a cross-sectional view taken along line III-III in FIG. It is a principal part enlarged view which shows the modification of the resin-made caps of this invention. It is a principal part enlarged view which shows the modification of the resin-made caps of this invention. It is a principal part enlarged view which shows the modification of the resin-made caps of this invention. It is a principal part enlarged view which shows the modification of the resin-made caps of this invention. It is a principal part enlarged view which shows the modification of the resin-made caps of this invention. It is a principal part enlarged view which shows the modification of the resin-made caps of this invention. It is a principal part enlarged view which shows the modification of the resin-made caps of this invention.
  • the resin cap 10 As shown in FIG. 1, the resin cap 10 according to the present embodiment is used for a resin container mouth portion 20.
  • the container mouth part 20 has a thin part 20a which is thinned by being cut out from the inner peripheral surface side, and a main body part 20b which is not thinned in this order from the tip.
  • the thin portion 20a is formed so that the thickness gradually decreases toward the tip.
  • the resin cap 10 As shown in FIGS. 1 to 3, the resin cap 10 according to the present embodiment is formed on the top plate portion 11, the cylindrical portion 12 hanging from the periphery of the top plate portion 11, and the inner surface of the top plate portion 11.
  • An outer ring 13 in contact with the outer peripheral surface of the container mouth portion 20 and inner rings 14 a and 14 b formed on the inner surface of the top plate portion 11 and in contact with the inner peripheral surface of the container mouth portion 20 are provided.
  • the material and manufacturing method of the resin cap 10 are not particularly limited.
  • a resin such as polyethylene or polystyrene is used, and the top plate portion 11, the cylinder portion 12, the outer ring 13, and the inner rings 14 a and 14 b are attached. It can be manufactured by injection molding integrally.
  • the top plate portion 11 of the resin cap 10 is formed in a disc shape in accordance with the shape of the container mouth portion 20, and the outer periphery of the container mouth portion 20 is provided with a thread 12 a on the inner peripheral surface of the tube portion 12.
  • the resin cap 10 is attached to the container opening 20 by screwing with a screw thread 20a formed on the surface.
  • the outer ring 13 and the inner rings 14 a and 14 b have a shape protruding from the inner surface of the top plate portion 11.
  • the container is sealed when the inner peripheral surface of the outer ring 13 is in contact with the outer peripheral surface of the container mouth portion 20 and the outer peripheral surfaces of the inner rings 14a and 14b are in contact with the inner peripheral surface of the container mouth portion 20, respectively.
  • the inner ring 14a is configured to be in contact with the thin portion 20a
  • the inner ring 14b is configured to be in contact with the main body portion 20b. Since the inner ring 14a comes into contact with the thin wall portion 20a, the thin wall portion 20a having reduced rigidity is supported by the inner ring 14a, and therefore the container mouth portion 20 can be prevented from falling down. Further, since the inside of the container is double-sealed by the inner rings 14a and 14b, the hermeticity of the container can be improved.
  • the length of the inner rings 14a and 14b may be set as appropriate according to the shape of the container mouth portion 20, but the length of the inner ring 14a contacting the thin wall portion 20a is set to be thin. It is preferable to make it shorter than the inner ring 14b which contacts parts other than the part 20a.
  • the outer ring 13 has a shape in which a part of the outer peripheral surface is in contact with the inner peripheral surface of the container mouth portion 20.
  • various shapes other than the shapes shown in FIGS. 1 to 3 can be adopted. The same applies to the inner rings 14a and 14b.
  • a container which has the container opening part 20 can apply to the resin-made containers for drinks manufactured from synthetic resins, such as a polyethylene phthalate.
  • synthetic resins such as a polyethylene phthalate.
  • resin containers used for fruit juice drinks, sports drinks, teas, and the like in which the contents are filled at a high temperature.
  • the outer ring 13 is notched obliquely from the inner peripheral surface side so that the thickness gradually decreases toward the tip, and is a radially inner end of the base portion of the outer ring 13 in a plan view.
  • the portion may be configured to be inside the end portion on the radially outer side of the distal end portion of the container mouth portion 20. Thereby, it can be made to contact so that the outer ring 13 may bite into the container opening part 20, and the sealing performance of a container can be improved.
  • the container mouth portion 20 is configured by the thin portion 20a and the main body portion 20b is illustrated, but the configuration of the container mouth portion 20 is not limited to this, and the entire container mouth portion 20 is thinned.
  • the container mouth portion 20 may be composed of only the thin wall portion 20a.
  • the shape of the thin part 20a is this It is not limited.
  • the inner peripheral surface of the container mouth portion 20 may have a shape that is notched so that the longitudinal section is curved inward, or the shape that is notched so that the longitudinal section is linear. It may be a combination of a portion and a portion that is cut out so that the longitudinal section has a curved shape that protrudes inward.
  • the thin-walled portion 20a is different in shape from the first thin-walled portion 20a-1 and the first thin-walled portion 20a-1, and has a larger maximum thickness than the first thin-walled portion 20a-1.
  • the second thin portion 20a-2 may be formed in this order from the tip. In this case, it is preferable that the inner ring 14a is in contact with the first thin portion 20a-1 and the inner ring 14b is in contact with the second thin portion 20a-2.
  • the container mouth portion 20 is composed of a thin portion 20a composed of a first thin portion 20a-1 and a second thin portion 20a-2, and a main body portion 20b
  • the inner ring 14a may be brought into contact with the first thin portion 20a-1
  • the inner ring 14b may be brought into contact with the main body portion 20b.
  • three inner rings may be formed, and one inner ring may be brought into contact with each of the first thin part 20a-1, the second thin part 20a-2, and the main body part 20b.
  • the case where two inner rings are formed or the case where three inner rings are formed is illustrated.
  • the number of inner rings is not limited to this, and may be one or four or more. May be.
  • the inner ring has a shape in which a convex curved part that protrudes in a curved shape toward the radially outer side of the inner ring is formed at the tip, or a plurality of inner rings are integrated. It is preferable to use a different shape.
  • FIG. 6 is an enlarged view of a main part showing a case where the inner ring has a shape in which a convex curved part protruding in a curved shape toward the radially outer side of the inner ring is formed at the tip part.
  • the inner ring 14c has a convex curved surface portion 14c-1 formed at the tip, and the convex curved surface portion 14c-1 is in contact with the thin portion 20a. Thereby, it is possible to apply pressure to the container mouth 20 not only from the lateral direction but also from the vertical direction.
  • the convex curved surface portion 14c-1 only needs to be formed at least at the tip of the inner ring 14c, and the convex curved surface portion 14c-1 may be formed over the entire outer peripheral surface of the inner ring 14c.
  • FIG. 7 shows an example of an inner ring having a shape in which a plurality of inner rings are integrated (integrated inner ring).
  • the inner ring protrudes outward in the radial direction of the inner ring and It is a principal part enlarged view which shows the case where it is set as the shape by which multiple protrusion parts which contact a peripheral surface were formed in the outer peripheral surface.
  • FIG. 7 on the outer peripheral surface of the inner ring 14d, two projecting portions 14d-1 and 14d-2 projecting outward in the radial direction of the inner ring are formed, and the projecting portion 14d-1 is formed as a thin portion 20a. And the projecting portion 14d-2 contacts the main body portion 20b.
  • both the thin part 20a and the main-body part 20b can be contacted by one inner ring 14d, and the container opening part 20 can be supported and the inside of the container can be sealed.
  • the lengths (horizontal distance from the base) of the protrusions 14d-1 and 14d-2 may be set as appropriate according to the shape of the container mouth part 20, but the length of the protrusion 14d-1 that contacts the thin-walled part 20a Is preferably longer than the protrusion 14d-2 that contacts a portion other than the thin portion 20a.
  • the inner ring 14d When the inner ring 14d is used for the container mouth portion 20 having the thin portion 20a composed of the first thin portion 20a-1 and the second thin portion 20a-2 as shown in FIG. It is preferable that the protrusion 14d-1 is in contact with the thin portion 20a-1 and the protrusion 14d-2 is in contact with the second thin portion 20a-2.
  • the inner ring 14d is a container composed of a thin portion 20a composed of the first thin portion 20a-1 and the second thin portion 20a-2 and a main body portion 20b as shown in FIG.
  • the inner ring 14a When used for the mouth portion 20, the inner ring 14a may be brought into contact with the first thin portion 20a-1, and the inner ring 14b may be brought into contact with the main body portion 20b.
  • three protrusions may be formed on the inner ring, and one protrusion may be brought into contact with each of the first thin part 20a-1, the second thin part 20a-2, and the main body part 20b.
  • the shape of the integral inner ring that has been described so far is merely a preferred example, and the shape of the integral inner ring is not limited thereto.
  • the outer peripheral surface is cut out from the tip side, and the cut-out portion is arranged so as to face the boundary between the thin portion 20a and the main body portion 20b.
  • the outer peripheral surface of the inner ring 14e may be brought into contact with both the thin portion 20a and the main body portion 20b.
  • one protruding portion that protrudes radially outward of the inner ring is formed, and this protruding portion is brought into contact with the thin portion (or the first thin portion),
  • the outer peripheral surface other than the protruding portion of the inner ring may be brought into contact with the main body (or the second thin portion).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
PCT/JP2014/066452 2014-06-20 2014-06-20 樹脂製キャップ WO2015194040A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SG11201610573SA SG11201610573SA (en) 2014-06-20 2014-06-20 Resin cap
JP2016528756A JP6671280B2 (ja) 2014-06-20 2014-06-20 樹脂製キャップ
PCT/JP2014/066452 WO2015194040A1 (ja) 2014-06-20 2014-06-20 樹脂製キャップ
TW104117163A TWI568646B (zh) 2014-06-20 2015-05-28 樹脂製蓋子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/066452 WO2015194040A1 (ja) 2014-06-20 2014-06-20 樹脂製キャップ

Publications (1)

Publication Number Publication Date
WO2015194040A1 true WO2015194040A1 (ja) 2015-12-23

Family

ID=54935067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/066452 WO2015194040A1 (ja) 2014-06-20 2014-06-20 樹脂製キャップ

Country Status (4)

Country Link
JP (1) JP6671280B2 (zh)
SG (1) SG11201610573SA (zh)
TW (1) TWI568646B (zh)
WO (1) WO2015194040A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021001023A (ja) * 2019-06-19 2021-01-07 メビウスパッケージング株式会社 二重構造容器
JP2021500273A (ja) * 2017-10-19 2021-01-07 バイオタージ・アクチボラゲットＢｉｏｔａｇｅ Ａｂ クロマトグラフィーカートリッジ封止配置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746766A (en) * 1980-09-02 1982-03-17 Crown Cork Japan Vessel cover with improved liner
JP3068023U (ja) * 1999-10-06 2000-04-21 有限会社佐藤化成工業所 容器および試薬入り容器
JP2002068238A (ja) * 2000-08-25 2002-03-08 Shibazaki Seisakusho Ltd 合成樹脂製キャップおよび閉止装置
JP2002087450A (ja) * 2000-09-19 2002-03-27 Murazumi Kogyo Kk 水密性容器
JP2004520233A (ja) * 2000-11-21 2004-07-08 ビーソン アンド サンズ リミテッド 使い勝手のよいキャップアセンブリのためのプラグシール
JP2005088977A (ja) * 2003-09-19 2005-04-07 Alcoa Closure Systems Japan Ltd 合成樹脂製キャップ、閉止装置、および容器詰め飲料
JP2009516623A (ja) * 2005-11-21 2009-04-23 ビーソン アンド サンズ リミテッド 容器密閉アセンブリのための顎部密封

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001328653A (ja) * 2000-05-18 2001-11-27 Shibazaki Seisakusho Ltd 合成樹脂製キャップ、その製造方法および装置
JP6059935B2 (ja) * 2012-09-28 2017-01-11 東洋製罐株式会社 包装容器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746766A (en) * 1980-09-02 1982-03-17 Crown Cork Japan Vessel cover with improved liner
JP3068023U (ja) * 1999-10-06 2000-04-21 有限会社佐藤化成工業所 容器および試薬入り容器
JP2002068238A (ja) * 2000-08-25 2002-03-08 Shibazaki Seisakusho Ltd 合成樹脂製キャップおよび閉止装置
JP2002087450A (ja) * 2000-09-19 2002-03-27 Murazumi Kogyo Kk 水密性容器
JP2004520233A (ja) * 2000-11-21 2004-07-08 ビーソン アンド サンズ リミテッド 使い勝手のよいキャップアセンブリのためのプラグシール
JP2005088977A (ja) * 2003-09-19 2005-04-07 Alcoa Closure Systems Japan Ltd 合成樹脂製キャップ、閉止装置、および容器詰め飲料
JP2009516623A (ja) * 2005-11-21 2009-04-23 ビーソン アンド サンズ リミテッド 容器密閉アセンブリのための顎部密封

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021500273A (ja) * 2017-10-19 2021-01-07 バイオタージ・アクチボラゲットＢｉｏｔａｇｅ Ａｂ クロマトグラフィーカートリッジ封止配置
JP7253541B2 (ja) 2017-10-19 2023-04-06 バイオタージ・アクチボラゲット クロマトグラフィーカートリッジ封止配置
JP2021001023A (ja) * 2019-06-19 2021-01-07 メビウスパッケージング株式会社 二重構造容器
JP7343341B2 (ja) 2019-06-19 2023-09-12 メビウスパッケージング株式会社 二重構造容器

Also Published As

Publication number Publication date
TW201615510A (zh) 2016-05-01
JPWO2015194040A1 (ja) 2017-04-27
SG11201610573SA (en) 2017-02-27
TWI568646B (zh) 2017-02-01
JP6671280B2 (ja) 2020-03-25

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