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WO2019058552A1 - Bouchon en résine synthétique et contenant - Google Patents

Bouchon en résine synthétique et contenant Download PDF

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Publication number
WO2019058552A1
WO2019058552A1 PCT/JP2017/034530 JP2017034530W WO2019058552A1 WO 2019058552 A1 WO2019058552 A1 WO 2019058552A1 JP 2017034530 W JP2017034530 W JP 2017034530W WO 2019058552 A1 WO2019058552 A1 WO 2019058552A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking piece
locking
cap
locking pieces
container
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.)
Ceased
Application number
PCT/JP2017/034530
Other languages
English (en)
Japanese (ja)
Inventor
靖文 黒岩
伸生 川村
淳史 小野
慎吾 梅木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Yamamura Glass Co Ltd
Original Assignee
Nihon Yamamura Glass Co Ltd
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 Nihon Yamamura Glass Co Ltd filed Critical Nihon Yamamura Glass Co Ltd
Priority to JP2017557010A priority Critical patent/JP6281029B1/ja
Priority to PCT/JP2017/034530 priority patent/WO2019058552A1/fr
Publication of WO2019058552A1 publication Critical patent/WO2019058552A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt

Definitions

  • the present invention relates to, for example, a synthetic resin cap attached to the mouth of a container for containing contents such as beverages, and a container provided with the same.
  • FIGS. 9A and 9B As a cap attached to the mouth of the container which stores contents, such as a drink, what was constituted widely in order to be able to check the existence of opening at a glance is used widely.
  • a cap body 55 having a skirt wall 54 provided with an internal thread 53 screwed to the external thread 52 of the container opening M, and a tamper evidence band connected to the lower portion of the skirt wall 54 via an annular weakening portion 56 And 57.
  • a plurality of locking pieces 59 that can be locked from below to the annular projection 58 provided on the outer periphery of the container opening M are provided at intervals in the circumferential direction.
  • the tip of the piece 59 is provided with a protrusion 60 positioned on the outer peripheral side of the annular protrusion 58 when the cap is attached to the container opening M.
  • the locking piece 59 is prevented from being inverted when the plug 60 is opened by the abutment of the projection 60 with the annular projection 58.
  • Patent No. 6061357 gazette
  • the present invention has been made with the above matters in mind, and the purpose thereof is to widen the locking margin of the locking piece against the annular projection while preventing the locking piece from being reversed, and thus to ensure the opening of the plug. It is an object of the present invention to provide a synthetic resin cap and container which can break the annular weakening portion.
  • the synthetic resin cap according to the present invention has a skirt wall provided with an internal thread screwed on an external thread formed on the outer periphery of a container opening, and an annular weakening portion at the lower part of the skirt wall.
  • a cap having a tamper evidence band connected thereto, the locking piece being engageable from below with an annular protrusion provided on the outer periphery of the container opening on the inner peripheral side of the tamper evidence band Are provided at intervals in the circumferential direction, and at least a part of the locking piece has a protruding portion protruding forward from the tip thereof, and the protruding portion has the cap attached to the container opening In a state in which the end of the locking piece is directed upward, the locking piece is configured to have a protruding portion that protrudes toward the outer peripheral side of the locking piece and protrudes to the outer peripheral side of the locking piece. ).
  • At least a part of the base of the protruding portion extends so as to be positioned on the proximal end side of the locking piece than the tip of the locking piece and is connected to the locking piece (Claim 2).
  • the synthetic resin cap according to claim 1 or 2 is attached to the mouth (claim 3).
  • a synthetic resin cap and container capable of widening the locking margin of the locking piece with respect to the annular projection while preventing the locking piece from being reversed and consequently breaking the annular weakened portion reliably in opening the plug. Is obtained.
  • the locking piece in the synthetic resin cap of the invention according to each claim of the present application, by providing the protruding part, the locking piece can be further moved to the outer peripheral side, and accordingly, the locking piece for the annular protrusion is made
  • the locking margin (locking area) can be effectively expanded, and in the state where the cap is attached to the container opening, the locking piece is prevented from passing over the annular projection when opening the plug, and thus the ring It is possible to reliably prevent the completion of the opening without breaking the weakened portion.
  • FIG. 1 It is a perspective view showing roughly composition of a synthetic resin cap concerning a 1 embodiment of the present invention. It is a longitudinal cross-sectional view which shows roughly the structure of the container based on one embodiment of this invention with which the said synthetic resin cap was mounted
  • (A) is an explanatory view schematically showing the positional relationship between the locking piece and the protruding portion of the synthetic resin cap
  • (B) to (F) are the positional relationship between the locking piece and the protruding portion according to the modification.
  • a synthetic resin cap (hereinafter referred to as a cap) 1 shown in FIGS. 1 to 3 is used by being attached to an opening M (see FIG. 2) of a container such as a plastic bottle, for example. By molding, it is integrally molded with polyethylene.
  • the raw material which forms the cap 1 is not specifically limited, In addition to the polyethylene used by this embodiment, a polypropylene etc. are used suitably.
  • the cap 1 has a top wall 2 that is substantially circular in a plan view, and a substantially cylindrical skirt wall 3 that extends downward from the outer peripheral portion of the top wall 2.
  • a knurled groove 4 is provided on the outer peripheral surface of the skirt wall 3 and an internal thread 5 is provided on the inner peripheral surface, and the internal thread 5 can be coupled to an external thread M1 formed on the outer periphery of the container opening.
  • the outer foot 8 is configured to be in close contact with the annular upper end surface, and in close contact with the outer peripheral surface of the container opening M.
  • the middle foot 6 and the container opening M are overlapped in order to clearly show the original shape of the middle foot 6, the outer diameter of the middle foot 6 is smaller in the actual wearing state. As a result, it is deformed (diameter-reduced) to contact the inner peripheral surface of the container opening M.
  • the cap 1 is a pill fur proof cap having a function of proving unopened (the fact that the opening has never been made), and at the time of opening the unopened cap 1 attached to the container opening M (first When the cap 1 is turned so that the connection between the male screw M1 and the female screw 5 is released at the time of opening the cap, the cap 1 is detached from the container opening M, but the tamper evidence connected to the lower part of the skirt wall 3 A band (hereinafter simply referred to as a "band”) 9 is configured to remain at the container opening M.
  • the band 9 is connected to the lower portion of the skirt wall 3 through the annular weakening portion 10 extending all around the skirt wall 3 (see FIGS. 1 and 2). And a slit that extends intermittently along the circumferential direction of the skirt wall 3 and the band 9 so as to vertically define the belt 9 and the band 9, and a bridge that exists between adjacent slits, Is broken when pulled by a predetermined force.
  • each locking piece 11 is positioned substantially below the annular protrusion (bead portion) M2 formed on the outer periphery of the container opening M below the male screw M1 in a state where the cap 1 is attached to the container opening M. And is locked to the annular projection M2 by an opening operation (see FIG. 2).
  • the locking piece 11 is configured to be able to be locked to the annular protrusion M2 from below, and the skirt wall 3 and the top wall 2 above the annular weakening portion 10 detach from the container opening M at the time of opening.
  • the band 9 below the annular weakening portion 10 remains at the container opening M, and the annular weakening portion 10 is broken accordingly.
  • the band 9 is integrally formed with the skirt wall 3 and the top wall 2, and the locking piece 11 provided on the band 9 protrudes downward when the cap 1 is formed.
  • the annular projection M2 is pushed up and turned upside down to project upward as shown in FIGS.
  • the fact that the upwardly projecting locking piece 11 is largely fallen (falling) means that the protrusion 12 is in contact with the outer peripheral surface of the container opening M (annular projection M2). (Refer to FIG. 2), whereby the locking of the locking piece 11 with the annular projection M2 is performed well. That is, the protrusion 12 is located on the outer peripheral side of the annular protrusion M2 in a state where the cap 1 is attached to the container opening M.
  • excluded the protrusion part 12 is the same, provides the protrusion part 12 in each locking piece 11 arrange
  • each locking piece 11 forms a pair only with one of the locking pieces 11 adjacent to each other, and the projection 12 provided on the locking piece 11 forming the pair is a pair of locking pieces It is provided in the mutually adjacent position with the protrusion part 11 of 11, and is not provided in the opposite position.
  • the locking pieces 11B and 11H exist on both sides of the locking piece 11A, but the locking piece 11A is It forms a pair only with the locking piece 11B and does not form a pair with the locking piece 11H.
  • the protruding portions 12 of the locking pieces 11A and 11B are provided at positions adjacent to each other, and the protruding portions 12 are provided at opposite positions (positions separating from each other) in the respective locking pieces 11A and 11B. Not.
  • each protrusion 12 is narrower than the circumferential width of each locking piece 11A, 11B.
  • the width in the circumferential direction of the protruding portion 12 be one fourth or more and two thirds or less of the width in the circumferential direction of the locking piece 11.
  • FIG. 3 as a pair similar to the pair of locking pieces 11A and 11B, a pair of locking pieces 11C and 11D, a pair of locking pieces 11E and 11F, and a pair of locking pieces 11G and 11H. And are provided.
  • the region where the protrusions 12 do not exist can increase the degree of concentration of
  • the locking margin (the locking area) of the locking piece 11 with respect to the annular protrusion M2 can be effectively expanded, and the cap 1 is made to the container opening M In the mounted state, when the plug is opened, the locking piece 11 is prevented from going over the annular projection M2, and therefore it is possible to reliably prevent the opening from being completed without breaking the annular weakened portion 10.
  • the central angle ⁇ in plan view of each region where the protrusion 12 does not exist is 30 ° or more, preferably 45 ° or more
  • the protrusions 12 are arranged and configured to be as follows.
  • the protrusions 12 of the locking pieces 11 forming a pair are brought close to each other, and the number of the protrusions 12 is not necessarily reduced. It is also possible to prevent the prevention effect from being weakened or lost.
  • the cap 1 is attached to the container opening M, and the outer peripheral side of the locking piece 1 in a state where the tip of the locking piece 11 faces upward.
  • a protruding portion 14 protruding to the outer peripheral side of the locking piece 11.
  • the longitudinal cross-sectional view of the latching piece 11 which has the protrusion part 12 is expanded and shown in the circle
  • the protrusion 60 of the conventional cap shown in FIG. 9B is close to the outer peripheral side of the locking piece 59, and the protrusion 12 of the present embodiment shown in FIG. 2 is also close to the outer peripheral side of the locking piece 11.
  • the projecting portion 12 of the present embodiment having the protruding portion 14 that can be moved closer to the outer peripheral side.
  • the part located in the tip side of projection 12 in the tip of locking piece 11, ie, the locking margin (locking area) of locking piece 11 to annular projection M2 is effectively made It can be spread.
  • At least a part of the base 14 a of the protruding portion 14 extends so as to be positioned on the proximal end side (lower side in FIG. 2) of the locking piece 11 than the tip of the locking piece 11. , And is connected to the locking piece 11. And, by forming the protrusion 12 in this manner, when the protrusion 12 comes in contact with the annular protrusion M2 from the outer peripheral side, it is possible to prevent the protrusion 12 from falling to the outer peripheral side by the reaction. Therefore, it is possible to prevent the locking piece 11 projecting upward from being largely fallen (falling in).
  • the locking piece 11 is eight pieces, it does not restrict to this.
  • the number of the locking pieces 11 is 3 or more and 20 or less.
  • the upper limit of the central angle ⁇ may be, for example, 120 ° or less.
  • the protruding portions 12 may or may not be provided on the locking pieces 11 that do not form a pair, and in the case of providing them, the protruding portions 12 may be provided at the circumferential center of the locking pieces 11 Conceivable.
  • the number of the locking pieces 11 is eight, as shown in FIG. 4B, it is possible to create three pairs of which the number of pairs is smaller than half (four pairs).
  • the protrusion part 12 is not provided in the two locking pieces 11 which do not create a pair.
  • the pair may be two pairs.
  • the protrusion part 12 is provided in the two locking pieces 11 which do not create a pair, respectively.
  • the pair of locking pieces 11 make a pair. Is preferred. That is, it is preferable to always provide a plurality of (two or more) pairs.
  • an odd number of locking pieces 11 may be provided, and in this case, there are always locking pieces 11 which do not form a pair, but in the same manner as in the case where a plurality of locking pieces 11 are provided.
  • the protrusion 12 may or may not be provided on the locking piece 11 which does not create a pair, and in the case of providing it, it is considered to provide the protrusion 12 in the circumferential direction center of the locking piece 11 Preferably, a plurality of pairs are always provided. Therefore, the number of locking pieces 11 is not three or less.
  • FIGS. 4C and 4D In the case where the number of the locking pieces 11 is five or seven, as shown in FIGS. 4C and 4D, all the locking pieces 11 except one locking piece 11 form a pair. It is preferable to do. That is, FIG. 4C shows the case where the number of the locking pieces 11 is seven, and FIG. 4D shows the case where the number of the locking pieces 11 is five. Although not shown, when the number of the locking pieces 11 is nine or more, it is not necessary to configure all the locking pieces 11 except one locking piece 11 to form a pair, for example, three locking pieces You may comprise so that all the locking pieces 11 except 11 may form a pair.
  • the protrusion 12 is such that the central angle ⁇ (see FIG. 3) in plan view of each region where the protrusion 12 does not exist is 30 ° or more, preferably 45 ° or more. It is desirable to arrange and configure the
  • the protrusions 12 of the locking pieces 11 forming a pair may be connected to each other.
  • the way of providing the projecting portion 12 is not limited to the above-described examples, and for example, as shown in FIGS. 5A and 5B, the projecting portion 12 may be provided at the center of the tip of each locking piece 11 .
  • the cap 1 is attached to the container opening M, and the thickness of the protruding portion 14 protruding to the outer peripheral side of the locking piece 11 in a state where the tip of the locking piece 11 faces upward
  • this thickness ratio can be changed as appropriate.
  • the protruding part 14 protruding on the outer peripheral side of the locking piece 11 may be provided over the whole locking piece 11, it does not restrict to this, and locking
  • the protruding portion 14 may be provided to correspond partially or intermittently to the piece 11, and the protruding portion 14 not only protrudes to the outer peripheral side with respect to the locking piece 11, but also in the circumferential direction or the upper direction It may be out of place.
  • the protruding portion 14 may be provided intermittently in the circumferential direction.
  • the protruding portions 14 are provided in three regions in the circumferential direction, but the way of separation is not limited to three.
  • the base portion 14a of the protruding portion 14 may be continuously provided in the circumferential direction, and the upper portion may be intermittently provided in the circumferential direction.
  • the base portion 14a of the protruding portion 14 may be intermittently provided in the circumferential direction, and the upper portion may be continuously provided in the circumferential direction.
  • FIGS. 5 (A), 6 (A), 7 (A) and 8 (A) the cap 1 is attached to the container opening M, and the tip of the locking piece 11 is directed upward.
  • 5 (B), FIG. 6 (B), FIG. 7 (B), and FIG. 8 (B) are respectively a front view when seeing the locking piece 11 and the protrusion part 12 at the time of from the outer peripheral side. It is a top view of the time.
  • the vertical cross-sectional shape (peripheral shape) of the base 14a connected to the locking piece 11 is also variously deformable, and is inclined as shown in FIG. 2 (the radial width narrows at a constant rate toward the lower side)
  • the shape may be), step shape (shape in which the width in the radial direction narrows toward the lower side stepwise), curved shape (shape in which the width in the radial direction narrows at a constant rate toward the lower side), etc. It may be
  • Reference Signs List 1 cap 2 top wall 3 skirt wall 4 knurled groove 5 female screw 6 middle foot 7 annular rib 8 outer foot 9 tamper evidence band 10 annular weakening portion 11 locking piece 12 protrusion 13 connecting portion 14 projecting portion 14 a base 52 male screw 53 female screw 54 Skirt wall 55 Cap main body 56 Annular weakening portion 57 Tamper evidence band 58 Annular projection 59 Locking piece 60 Protrusion M Container mouth M1 Male thread M2 Annular projection ⁇ Central angle

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention a pour but de produire un bouchon en résine synthétique et un contenant pouvant empêcher l'inversion d'une pièce de verrouillage, par élargissement de la marge de verrouillage de la pièce de verrouillage par rapport à une saillie annulaire, et par rupture fiable d'une section annulaire à rompre, au moment de l'ouverture. Le bouchon (1) comprend : une paroi de jupe (3) à l'intérieur de laquelle est disposée une vis femelle (5) qui se visse sur une vis mâle (M1) formée sur la circonférence externe d'un goulot de contenant (M); et une bande d'inviolabilité (9) accouplée à une section inférieure de la paroi de jupe (3) par l'intermédiaire d'une section annulaire à rompre (10). Une pluralité de pièces de verrouillage (11), qui peuvent se verrouiller, depuis le bas, à une saillie annulaire (M2) située dans la circonférence extérieure du goulot de contenant (M), sont disposées sur le côté de circonférence interne de la bande d'inviolabilité (9), des espaces étant formés entre elles dans la direction circonférentielle. Au moins certaines pièces de la pluralité de pièces de verrouillage (11) présentent une section saillante (12) qui fait saillie de l'avant vers la pointe de celles-ci. Les sections saillantes (12) sont configurées de façon à avoir une section en saillie (14) qui est plus proche du côté circonférentiel externe des pièces de verrouillage (11) et qui fait saillie sur le côté circonférentiel externe des pièces de verrouillage (11), dans un état dans lequel le bouchon (1) est fixé sur le goulot du contenant (M) et les pointes des pièces de verrouillage (11) sont orientées vers le haut.
PCT/JP2017/034530 2017-09-25 2017-09-25 Bouchon en résine synthétique et contenant Ceased WO2019058552A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017557010A JP6281029B1 (ja) 2017-09-25 2017-09-25 合成樹脂製キャップ及び容器
PCT/JP2017/034530 WO2019058552A1 (fr) 2017-09-25 2017-09-25 Bouchon en résine synthétique et contenant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/034530 WO2019058552A1 (fr) 2017-09-25 2017-09-25 Bouchon en résine synthétique et contenant

Publications (1)

Publication Number Publication Date
WO2019058552A1 true WO2019058552A1 (fr) 2019-03-28

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Family Applications (1)

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PCT/JP2017/034530 Ceased WO2019058552A1 (fr) 2017-09-25 2017-09-25 Bouchon en résine synthétique et contenant

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JP (1) JP6281029B1 (fr)
WO (1) WO2019058552A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019073794A1 (fr) * 2017-10-10 2019-04-18 日本山村硝子株式会社 Bouchon en résine synthétique et récipient
US10654625B2 (en) 2018-10-12 2020-05-19 Closure Systems International Inc. Twist and flip lock closure
US10899505B2 (en) * 2019-01-10 2021-01-26 Silgan White Cap LLC Band-receiving closure with recess
USD1063612S1 (en) 2020-09-28 2025-02-25 Closure Systems International Inc. Closure with tamper-evident band
USD1063613S1 (en) 2020-09-28 2025-02-25 Closure Systems International Inc. Closure with tamper-evident band
USD996968S1 (en) 2021-05-17 2023-08-29 Closure Systems International Inc. Closure
USD996967S1 (en) 2021-05-17 2023-08-29 Closure Systems International Inc. Closure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06183450A (ja) * 1991-11-08 1994-07-05 Astra Plastique Sa タンパープルーフリングを備えた合成物質からなるスクリューキャップ
JPH10324353A (ja) * 1997-03-25 1998-12-08 Toshio Hakata 封印式キャップ
US20100308050A1 (en) * 2007-08-30 2010-12-09 Bericap Gmbh & Co. Kg Screw closure with tamper-proof strip
JP2017019510A (ja) * 2015-07-08 2017-01-26 日本クロージャー株式会社 キャップおよびキャップ付き容器
WO2017061001A1 (fr) * 2015-10-08 2017-04-13 日本山村硝子株式会社 Capuchon en résine synthétique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06183450A (ja) * 1991-11-08 1994-07-05 Astra Plastique Sa タンパープルーフリングを備えた合成物質からなるスクリューキャップ
JPH10324353A (ja) * 1997-03-25 1998-12-08 Toshio Hakata 封印式キャップ
US20100308050A1 (en) * 2007-08-30 2010-12-09 Bericap Gmbh & Co. Kg Screw closure with tamper-proof strip
JP2017019510A (ja) * 2015-07-08 2017-01-26 日本クロージャー株式会社 キャップおよびキャップ付き容器
WO2017061001A1 (fr) * 2015-10-08 2017-04-13 日本山村硝子株式会社 Capuchon en résine synthétique

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Publication number Publication date
JP6281029B1 (ja) 2018-02-14
JPWO2019058552A1 (ja) 2019-11-14

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