JP3670146B2

JP3670146B2 - Anti-fraud cap

Info

Publication number: JP3670146B2
Application number: JP32601098A
Authority: JP
Inventors: 早川　　茂; 茂雄飯塚; 治夫土田
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 1998-10-30
Filing date: 1998-10-30
Publication date: 2005-07-13
Anticipated expiration: 2018-10-30
Also published as: JP2000142743A

Description

【０００１】
【発明の属する技術分野】
本発明は無断開口を防止するための不正防止用キャップに関する。
【０００２】
【従来の技術】
例えば、特開平１０−２１１９５２号が示すように、胴部上端から肩部を介して口頸部を起立すると共に、胴部上端外面に凹凸を上下に連続する第１係合状を周設した容器体と、口頸部上端口部を閉塞するキャップと、キャップを覆合して周壁下端から下外方へ拡開突設した複数の弾性片下端を容器体の肩部上面へ載置した有頂カバー筒と、第１係合条に抜出し不能に嵌合させた第２係合条を筒部内面に有し、筒部上端から内方へ突設した内方張出し筒部内端を、カバー筒の下端外面へ当接させた封止筒とを有するバージンシール付き容器が知られている。
【０００３】
【発明が解決しようとする課題】
上記公知例では、カバー筒は下外方へ拡開した弾性片を有するため、カバー筒を一旦容器体から取り外した後は、これを再度容器体へ装着させることは不可能であり、従って、無断開口の事実を隠すことは困難である。
しかし、一方において無断開口防止手段が設けられているか否かを容器体外部から識別することが困難な場合があり、このためかかる手段が設けられていないと誤認した場合には、仮に無断開口によりカバー筒が取り外されていても無断開口の事実を看過することがあり、無断開口を有効に防止することができなかった。
【０００４】
請求項１記載及び請求項３記載の不正防止用キャップは、キャップ部材の切欠部又は開口部に垂下筒の一部を形成する識別板又は識別部を嵌合させて、これを外部から視認可能にしておき、開口後においても、識別板又は識別部が垂下筒から分離して切欠部又は開口部内に残存するようにして、無断開口防止手段の有無を外部から識別可能とするものである。
【０００５】
請求項２記載の不正防止用キャップは、垂下筒に長割溝を設けることにより、垂下筒の弾性変形を大にして、開口時における識別板の分離破断を一層容易にしようとするものである。
【０００６】
請求項４記載の不正防止用キャップは、内筒を設けて識別部の嵌合固定をより強固にすると共に、切離しスリットを設けて垂下筒を展開可能にして容器体からの除去を容易にしようとするものである。
【０００７】
【課題を解決するための手段】
第１の手段として、容器体１の口頸部３外面へ上面閉塞の周壁５を螺合させ、かつ該周壁下端に付設した外向きフランジ６下面から内外二重筒９を垂下し、かつその外筒８の下方後部に切欠部１０を形成したキャップ部材Ａと、
上記内外二重筒９の間隙内へ垂下筒１１上部を嵌合させ、上記切欠部１０内に位置する垂下筒１１上部部分を厚肉部１２として、該厚肉部外面を切欠部１０内へ嵌合させると共に、該厚肉部１２と厚肉部上方の垂下筒１１部分とを識別板１３として、該識別板の左右両側に切離し線１４を縦設すると共に、識別板１３下方の垂下筒１１部分を切除して、識別板１３と該識別板を除く垂下筒１１部分とを、上記切除部１５の左右両端上部と両切離し線１４下端間に設けた破断可能な肉薄片１６で連結し、更に識別板１３を除く垂下筒下部内面から係合板１７を内方突設して、該係合板を上記口頸部３の下部外面に周設した係合突条４下面へ係合させた識別筒Ｂとを有し、
上記厚肉部１２上方の識別板１３部分を内外二重筒９間に固着させ、
上記肉薄片１６の肉厚を、キャップ部材Ａの螺脱方向への回動による識別板１３の上昇で破断可能な値に定めた。
【０００８】
第２の手段として、上記第１の手段を有すると共に、上記垂下筒１１に上端開口、かつ下端閉塞の複数の長割溝２０を縦設した。
【０００９】
第３の手段として、容器体１の口頸部３外面へ上面閉塞の周壁３０を螺合させて、該周壁下端に複数開口の外向きフランジ状壁３１を付設し、かつ該外向きフランジ状壁外周から外筒３２を垂設したキャップ部材Ｃと、
上記外筒３２下部内面へ垂下筒３６上部外面を嵌合させ、かつ該垂下筒上端部から複数の起立板３７を起立して、これら起立板を上記開口３５へ抜出し不能に挿通させて、その起立板上部を開口上面から露出させると共に、垂下筒下部内面から係合板３９を内方突設して、該係合板先端部を上記口頸部３の下部外面に周設した係合突条４下面へ近接または摺接させた識別筒Ｄとを有し、
上記識別筒は、起立板３７と係合板３９との間の垂下筒３６部分内面に複数の連結突条４０を、周方向に所定の間隔をおいて縦設し、かつ該連結突条を除く連結突条上下両端間の垂下筒３６部分を、軸線との交差平面で上下に切断して、両切断面間に細隙４１を設けることにより、該細隙上方の垂下筒３６部分と起立板３７とを識別部４２に形成し、
上記連結突条４０の横断面積を、キャップ部材Ｃの螺脱方向への回動による識別部４２の上昇で破断可能な値に定めた。
【００１０】
第４の手段として、上記第３の手段を有すると共に、上記外向きフランジ状壁３１内周から、内筒３４を外筒３２よりも短く垂設して、上記起立板３７を内外両筒間へ抜出し不能に挿通させ、更に上記細隙４１下方の垂下筒３６部分に切離しスリット４３を、細隙４１に開口させて縦設した。
【００１１】
【発明の実施の形態】
以下、本発明に係る不正防止用キャップを図面に示す実施形態を参照しながら説明する。
図１乃至図４は本発明に係る不正防止用キャップの第１の実施形態を示す。
まず、不正防止用キャップを装着する容器体の一例について説明すると、容器体１は胴部２の上端部から肩部を介して口頸部３を起立し、該口頸部の上部外面に雄ねじを形成すると共に、下部外面に係合突条４を周設する。
【００１２】
Ａはキャップ部材で、容器体１の口頸部３の雄ねじへ、有頂の周壁５内面に形成した雌ねじを螺合させる。周壁５下端から外向きフランジ６を突設して、該外向きフランジ下面から内外筒７、８で形成した内外二重筒９を垂下し、かつその外筒８の後部（図１において右部）の下部に矩形状の切欠部１０を形成する。
【００１３】
Ｂは識別筒で、内外二重筒９の間隙内へ垂下筒１１上部を回動可能に嵌合させ、切欠部１０内に位置する垂下筒１１の上部部分を厚肉部１２として、該厚肉部外面を切欠部１０内へ嵌合させる。
そして、厚肉部１２と厚肉部上方の垂下筒部分とを識別板１３として、図４に明示するように該識別板の左右両側に切離し線１４を縦設する。
【００１４】
識別板１３下方の垂下筒部分を、識別板１３よりも周方向にやや長く切除して、識別板１３と該識別板両側の垂下筒部分とを、切除部１５の左右両端上縁と両切離し線１４下端との間に設けた破断可能な肉薄片１６で連結する。
識別板１３を除く垂下筒１１の下部内面から係合板１７を上内方へ突設して、該係合板上端を口頸部３の係合突条４下面へ係合させる。
【００１５】
内外二重筒９から下方突出する垂下筒１１下部外面を上向き段部１８を介して大外径部に形成して、上向き段部１８上面を外筒８下端へ当接させる。
一方、内外二重筒９の間隙内へ嵌合させた厚肉部１２上方の識別板１３部分外面の上部に周方向への嵌合突条１９を形成すると共に、該嵌合突条後方の外筒８部分前面に嵌合凹溝を形成して、この嵌合凹溝内へ嵌合突条１９を嵌着させる。
【００１６】
これら嵌合突条１９と嵌合凹溝とは、識別板１３を内外二重筒９間へ固着させるためのものであるが、この固着手段としてはこれに限らず、厚肉部１２上方の識別板１３部分上端を外向きフランジ６下面へ超音波により接着させてもよい。なお、請求項２記載のように、識別板１３を除く垂下筒１１部分に、上端開口、かつ下端閉塞で、垂下筒１１下端部に達する長さの長割溝２０を複数縦設する。
図中、４５は口頸部３上面とキャップ部材下面との間に設けたパッキンである。
【００１７】
次に本実施形態の作用について説明する。
図１は一度も開口されてない状態を示すもので、この状態からキャップ部材Ａを開方向へ回動させると、口頸部３へ螺合させた周壁５が上昇を始める。すると厚肉部１２上方の識別板１３部分が内外二重筒９間へ固着されているため、識別板１３も上昇を始める。
【００１８】
一方、識別板１３を除いた垂下筒１１部分は、係合板１７が口頸部３の係合突条４へ係合しているため上昇することができず、このため肉薄片１６が破断して識別板１３がこれを除く垂下筒１１部分から分離すると共に、垂下筒１１上部が内外二重筒９から抜け出る。
図４はキャップ部材Ａが口頸部３から螺脱した状態を示すもので、識別板１３の厚肉部１２は切欠部１０内へ嵌合して残存し、他方、識別板１３を除く垂下筒１１部分は内外二重筒９から抜け出て胴部２の肩部上面へ係合する。
【００１９】
図５乃至図７は本発明に係る不正防止用キャップの第２の実施形態を示す。
Ｃはキャップ部材で、容器体１の口頸部３外面へ有頂の周壁３０を螺合させて、該周壁下端から外向きフランジ状壁３１を突設する。
外向きフランジ状壁３１外周から外筒３２を垂設して、該外筒の上部内面に第１突条部３３を周設し、さらに請求項４記載のように外向きフランジ状壁３１内周から内筒３４を外筒３２よりも短く垂設して、これら内外両筒間の外向きフランジ状壁３１部分に４つの開口部３５を周方向に等間隔をおいて形成する。
【００２０】
Ｄは識別筒で、外筒３２下部内面へ垂下筒３６上部外面を嵌合させ、かつ該垂下筒上端から４つの起立板３７を起立して、該起立板上部外面に第２突条部３８を形成し、これら起立板３７を内筒３４と外筒３２との間隙へ挿通させて、第２突条部３８下面を第１突条部３３上面へ係合させ、かつその起立板上端部を開口部３５上面から露出させる。
【００２１】
垂下筒３６の下部内面から複数の係合板３９を周方向に所定の間隔をおいて上内方へ突設し、これら係合板先端部を口頸部３の下部外面に周設した係合突条４下面へ図示例のように近接させるか、又は摺接させる。
垂下筒３６の上下方向中間部内面に係合板３９と同数の連結突条４０を、周方向に所定の間隔をおいて縦設して、これら連結突条下端部を係合板３９の下端部上面へ連続させる。
【００２２】
連結突条４０の上下両端間の垂下筒３６部分を、軸線と直交する平面で上下に切断して、両切断面間に細隙４１を設けることにより細隙４１上方の垂下筒３６部分と起立板３７とを識別部４２に形成する。
細隙４１は、図５に示すように、上下両面間の間隔を一定に形成した横断面長方形状でもよく、或いは図７に示すように、内方の間隔を外方の間隔よりも小に形成した横断面台形状でもよい。
なお、請求項４記載のように、細隙４１下方の垂下筒３６部分に、少なくとも１つの切離しスリット４３を、細隙４１に開口させて縦設する。
また、細隙４１下方の垂下筒３６部分下部外面を、上向き段部４４を介して大外径部に形成して、上向き段部４４上面を外筒３２下端へ当接させる。
【００２３】
次に、本実施形態の作用について説明する。
第２突条部３８が第１突条部３３へ係合し、一方、係合板３９が係合突条４へ係合しているため、キャップ部材Ｃを螺脱方向へ回動させると、各識別部４２は周壁３０と共に上昇するのに対し、細隙４１下方の垂下筒３６部分は上昇できず、このため連結突条４０が破断して、識別部４２が開口部３５内に残存する一方、細隙４１下方の垂下筒３６部分は外筒３２から抜け出して、容器体１肩部上へ係合する。
なお、切離しスリット４３の間隔を広げて垂下筒３６部分を拡開させることにより、細隙４１下方の垂下筒３６部分を容器体１から離脱させることができる。
【００２４】
【発明の効果】
請求項１及び３記載の不正防止用キャップは、キャップ部材の切欠部又は開口部へ垂下筒の一部を形成する識別板又は識別部を外部から視認可能に嵌合させると共に、識別板又は識別部を除く垂下筒部分から係合板を突設して、これらを口頸部の係合突条へ係合させたので、開口前において無断開口手段の有無を認識しうることは勿論のこと、キャップ部材の螺脱による開口後においても、識別板又は識別部がこれらを除く垂下筒部分から分離して切欠部又は開口部内に残存するため、無断開口防止手段の有無を外部から認識することができ、従って、無断開口の事実が看過されるというようなことがない。
【００２５】
請求項２記載の不正防止用キャップは、垂下筒に長割溝を設けたので、キャップ部材の回動時において、垂下筒の周方向への弾性変形を大にすることができ、このため開口時における識別板の分離破断が一層容易になる。
【００２６】
請求項４記載の不正防止用キャップは、内筒を設けて、起立板を内外両筒間へ嵌合させるため、起立板が開口部から容易に抜け出ることがない。
また、切離しスリットを設けたので、このスリットを広げて垂下筒部分を展開することができ、このため識別部以外の垂下筒部分を容器体から容易に離脱させることができる。
【図面の簡単な説明】
【図１】本発明に係る不正防止用キャップの第１の実施形態を示す断面図。
【図２】同じく、背面図。
【図３】同じく、キャップ部材から識別筒を取り外した状態を示す分解図。
【図４】同じく、キャップ部材を口頸部から螺脱させた状態を示す背面図。
【図５】本発明に係る不正防止用キャップの第２の実施形態を示すもので、後半部を示す断面図。
【図６】同じく、識別筒の斜視図。
【図７】同じく、識別筒の細隙の変形例を示す図５相当図。
【符号の説明】
１容器体
３口頸部
４係合突条
５、３０周壁
６、３１外向きフランジ
７、３４内筒
８、３２外筒
９内外二重筒
１０切欠部
１１、３６垂下筒
１２厚肉部
１３識別板
１４切離し線
１５切除部
１６肉薄片
１７、３９係合板
２０長割溝
３５開口部
３７起立板
４０連結突条
４１細隙
４２識別部
４３切離しスリット
Ａ、Ｃキャップ部材
Ｂ、Ｄ識別筒[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tamper-proof cap for preventing unauthorized opening.
[0002]
[Prior art]
For example, as disclosed in Japanese Patent Application Laid-Open No. 10-211952, the mouth and neck portion is erected from the upper end of the torso via the shoulder, and a first engagement shape is provided around the outer surface of the upper end of the torso that is continuous up and down. A container body, a cap that closes the mouth and neck upper end mouth, and a plurality of elastic piece lower ends that project from the lower end of the peripheral wall to expand outward from the lower end of the peripheral wall are placed on the upper surface of the shoulder portion of the container body A top cover tube and a second engagement line fitted to the first engagement line so that it cannot be pulled out are provided on the inner surface of the tube part, and an inwardly projecting tube part inner end projecting inward from the upper end of the tube part. A container with a virgin seal having a sealing cylinder brought into contact with the outer surface of the lower end of the cover cylinder is known.
[0003]
[Problems to be solved by the invention]
In the above known example, since the cover cylinder has an elastic piece that expands downward and outward, once the cover cylinder is removed from the container body, it is impossible to attach it to the container body again. It is difficult to hide the fact of unauthorized opening.
However, in some cases, it may be difficult to identify from the outside of the container whether or not unauthorized opening prevention means is provided.For this reason, if it is mistaken that such means are not provided, the unauthorized opening Even if the cover tube is removed, the fact of the unauthorized opening may be overlooked, and the unauthorized opening cannot be effectively prevented.
[0004]
The fraud prevention cap according to claim 1 or claim 3 can be visually recognized from the outside by fitting an identification plate or identification part forming a part of the hanging cylinder into the notch or opening of the cap member. Even after opening, the identification plate or the identification portion is separated from the hanging cylinder and remains in the notch or the opening so that the presence or absence of the unauthorized opening prevention means can be identified from the outside.
[0005]
The fraud prevention cap according to claim 2 is intended to further facilitate the separation and breakage of the identification plate at the time of opening by providing a long groove in the drooping cylinder to increase the elastic deformation of the drooping cylinder. .
[0006]
The tamper-proof cap according to claim 4 is provided with an inner cylinder to make the fitting and fixing of the identification portion stronger, and a separation slit is provided so that the drooping cylinder can be developed to facilitate removal from the container body. It is what.
[0007]
[Means for Solving the Problems]
As a first means, the peripheral wall 5 with the upper surface closed is screwed onto the outer surface of the mouth neck portion 3 of the container body 1, and the inner and outer double cylinders 9 are suspended from the lower surface of the outward flange 6 attached to the lower end of the peripheral wall, and A cap member A having a notch 10 formed in the lower rear part of the outer cylinder 8;
The upper part of the hanging cylinder 11 is fitted into the gap between the inner and outer double cylinders 9, the upper part of the hanging cylinder 11 located in the notch part 10 is defined as the thick part 12, and the outer surface of the thick part is entered into the notch part 10. At the same time, the thick portion 12 and the hanging cylinder 11 portion above the thick portion are used as the identification plate 13, and the separation lines 14 are vertically provided on both the left and right sides of the identification plate, and the hanging cylinder below the identification plate 13. 11 portions are cut out, and the identification plate 13 and the hanging cylinder 11 portion excluding the identification plate are connected by a breakable thin piece 16 provided between the upper left and right ends of the cut portion 15 and the lower ends of both separation lines 14. Further, an engagement plate 17 is protruded inwardly from the inner surface of the lower part of the drooping cylinder excluding the identification plate 13, and the engagement plate is engaged with the lower surface of the engagement protrusion 4 provided around the lower outer surface of the mouth neck portion 3. An identification cylinder B,
The identification plate 13 part above the thick part 12 is fixed between the inner and outer double cylinders 9,
The thickness of the thin piece 16 was determined to be a value that can be broken when the identification plate 13 is raised by the rotation of the cap member A in the screwing direction.
[0008]
As a second means, the first means is provided, and a plurality of long grooves 20 having an upper end opening and a lower end closing are vertically provided in the hanging cylinder 11.
[0009]
As a third means, a peripheral wall 30 having an upper surface closed is screwed onto the outer surface of the mouth neck portion 3 of the container body 1, a plurality of outward flange-like walls 31 are attached to the lower end of the peripheral wall, and the outward flange-like shape is provided. A cap member C in which an outer cylinder 32 is suspended from the outer periphery of the wall;
The upper outer surface of the hanging cylinder 36 is fitted to the lower inner surface of the outer cylinder 32, and a plurality of upright plates 37 are erected from the upper end portion of the hanging cylinder, and these upright plates are inserted into the opening 35 so as not to be pulled out. The upper part of the upright plate is exposed from the upper surface of the opening, and the engaging plate 39 is protruded inward from the inner surface of the lower part of the drooping cylinder, and the engaging ridge 4 is provided around the lower outer surface of the mouth and neck portion 3. An identification cylinder D that is in close proximity or sliding contact with the lower surface;
In the identification cylinder, a plurality of connecting ridges 40 are provided on the inner surface of the hanging cylinder 36 between the upright plate 37 and the engaging plate 39, and are vertically provided at predetermined intervals in the circumferential direction, and the connecting ridges are excluded. The hanging cylinder 36 portion between the upper and lower ends of the connecting protrusion is cut up and down at a plane intersecting with the axis, and a slit 41 is provided between both cut surfaces, so that the hanging cylinder 36 portion and the upright plate above the slit. 37 in the identification part 42,
The cross-sectional area of the connecting ridge 40 is set to a value that can be broken by the ascending of the identification portion 42 by the rotation of the cap member C in the screwing direction.
[0010]
As the fourth means, the third means is provided, and the inner cylinder 34 is suspended from the inner periphery of the outward flange-like wall 31 so as to be shorter than the outer cylinder 32, and the upright plate 37 is disposed between the inner and outer cylinders. The slit 43 is vertically opened by being opened in the slit 41 by being cut off from the hanging cylinder 36 below the slit 41.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a fraud prevention cap according to the present invention will be described with reference to embodiments shown in the drawings.
1 to 4 show a first embodiment of a fraud prevention cap according to the present invention.
First, an example of a container body to which a tamper-proof cap is attached will be described. The container body 1 stands from the upper end portion of the trunk portion 2 through the shoulder portion, and the mouth neck portion 3 is erected on the upper outer surface of the mouth neck portion. The engaging protrusion 4 is provided around the lower outer surface.
[0012]
A is a cap member, and a female screw formed on the inner surface of the peripheral wall 5 is screwed into a male screw of the mouth and neck portion 3 of the container body 1. An outward flange 6 protrudes from the lower end of the peripheral wall 5, and an inner / outer double cylinder 9 formed by the inner and outer cylinders 7 and 8 is suspended from the lower surface of the outer flange, and the rear part of the outer cylinder 8 (right part in FIG. 1) A rectangular notch 10 is formed in the lower part of ().
[0013]
B is an identification cylinder, and the upper part of the hanging cylinder 11 is rotatably fitted into the gap between the inner and outer double cylinders 9, and the upper part of the hanging cylinder 11 located in the notch 10 is defined as the thick part 12. The meat part outer surface is fitted into the notch part 10.
Then, with the thick portion 12 and the hanging cylinder portion above the thick portion as the identification plate 13, as shown in FIG. 4, the separation lines 14 are provided vertically on both the left and right sides of the identification plate.
[0014]
The drooping cylinder portion below the identification plate 13 is cut slightly longer in the circumferential direction than the identification plate 13, and the identification plate 13 and the drooping cylinder portions on both sides of the identification plate are separated from the upper left and right upper edges of the cut portion 15. It connects with the thin piece 16 which can be broken provided between the line 14 lower ends.
An engagement plate 17 is projected upward and inward from the lower inner surface of the hanging cylinder 11 excluding the identification plate 13, and the upper end of the engagement plate is engaged with the lower surface of the engagement protrusion 4 of the neck 3.
[0015]
A lower outer surface of the hanging cylinder 11 protruding downward from the inner / outer double cylinder 9 is formed in a large outer diameter portion via an upward step portion 18, and an upper surface of the upward step portion 18 is brought into contact with the lower end of the outer cylinder 8.
On the other hand, a fitting protrusion 19 in the circumferential direction is formed on the upper surface of the outer surface of the identification plate 13 above the thick portion 12 fitted into the gap between the inner and outer double cylinders 9, and the rear of the fitting protrusion A fitting groove is formed on the front surface of the outer cylinder 8 portion, and the fitting protrusion 19 is fitted into the fitting groove.
[0016]
The fitting protrusions 19 and the fitting concave grooves are for fixing the identification plate 13 between the inner and outer double cylinders 9, but the fixing means is not limited to this, and the upper part of the thick portion 12 is provided. The upper end of the identification plate 13 may be adhered to the lower surface of the outward flange 6 by ultrasonic waves. According to the second aspect of the present invention, a plurality of elongated grooves 20 having a length reaching the lower end portion of the drooping cylinder 11 are provided in the drooping cylinder 11 portion excluding the identification plate 13 with the upper end opening and the lower end closed.
In the figure, 45 is a packing provided between the upper surface of the mouth and neck portion 3 and the lower surface of the cap member.
[0017]
Next, the operation of this embodiment will be described.
FIG. 1 shows a state in which the cap member A has not been opened, and when the cap member A is rotated in the opening direction, the peripheral wall 5 screwed into the mouth-neck portion 3 starts to rise. Then, since the identification plate 13 portion above the thick portion 12 is fixed between the inner and outer double cylinders 9, the identification plate 13 also starts to rise.
[0018]
On the other hand, the portion of the hanging cylinder 11 excluding the identification plate 13 cannot be raised because the engagement plate 17 is engaged with the engagement protrusion 4 of the mouth-and-neck portion 3, so that the thin piece 16 is broken. Thus, the identification plate 13 is separated from the portion of the hanging cylinder 11 except for this, and the upper part of the hanging cylinder 11 comes out of the inner and outer double cylinders 9.
FIG. 4 shows a state in which the cap member A is screwed off from the mouth-and-neck portion 3, and the thick-walled portion 12 of the identification plate 13 remains fitted in the notch portion 10, while the hanging portion excluding the identification plate 13. The cylinder 11 part comes out of the inner and outer double cylinders 9 and engages with the upper surface of the shoulder part of the body part 2.
[0019]
5 to 7 show a second embodiment of a tamper-proof cap according to the present invention.
C is a cap member, and the top wall 30 is screwed onto the outer surface of the mouth neck portion 3 of the container body 1, and an outward flange-like wall 31 projects from the lower end of the wall.
The outer cylinder 32 is suspended from the outer periphery of the outward flange-like wall 31, and the first protrusion 33 is provided around the upper inner surface of the outer cylinder. The inner cylinder 34 is suspended from the circumference shorter than the outer cylinder 32, and four openings 35 are formed at equal intervals in the circumferential direction in the outward flange-like wall 31 portion between the inner and outer cylinders.
[0020]
D is an identification cylinder. The upper outer surface of the hanging cylinder 36 is fitted to the lower inner surface of the outer cylinder 32, and four upright plates 37 are erected from the upper end of the hanging cylinder. The upright plate 37 is inserted into the gap between the inner cylinder 34 and the outer cylinder 32, the lower surface of the second protrusion 38 is engaged with the upper surface of the first protrusion 33, and the upper end of the upright plate is formed. Is exposed from the upper surface of the opening 35.
[0021]
A plurality of engagement plates 39 projecting from the lower inner surface of the drooping cylinder 36 upward and inward in the circumferential direction at a predetermined interval, and the engagement projection tip portions are circumferentially disposed on the lower outer surface of the mouth neck portion 3. It is made to approach to the lower surface of the strip 4 as shown in the figure, or is brought into sliding contact.
The same number of connecting ridges 40 as the engagement plates 39 are vertically provided on the inner surface of the vertical cylinder 36 in the vertical direction at predetermined intervals in the circumferential direction, and the lower ends of these connection ridges are the upper surfaces of the lower ends of the engagement plates 39. To continue.
[0022]
The drooping cylinder 36 between the upper and lower ends of the connecting protrusion 40 is cut up and down along a plane perpendicular to the axis, and a slit 41 is provided between both cut surfaces, so that the drooping cylinder 36 above the slit 41 stands upright. The plate 37 is formed in the identification part 42.
As shown in FIG. 5, the slit 41 may have a rectangular cross section in which the distance between the upper and lower surfaces is constant, or the inner space is smaller than the outer space as shown in FIG. The formed cross-sectional trapezoidal shape may be sufficient.
According to the fourth aspect of the present invention, at least one separation slit 43 is vertically provided in the hanging cylinder 36 below the slit 41 so as to open in the slit 41.
In addition, a lower outer surface of the hanging cylinder 36 below the slit 41 is formed in a large outer diameter portion via an upward step 44, and the upper surface of the upward step 44 is brought into contact with the lower end of the outer cylinder 32.
[0023]
Next, the operation of this embodiment will be described.
Since the second protrusion 38 is engaged with the first protrusion 33, while the engagement plate 39 is engaged with the engagement protrusion 4, when the cap member C is rotated in the screwing direction, Each identification part 42 rises together with the peripheral wall 30, but the hanging cylinder 36 below the slit 41 cannot rise, so that the connecting protrusion 40 is broken and the identification part 42 remains in the opening 35. On the other hand, the portion of the hanging cylinder 36 below the slit 41 comes out of the outer cylinder 32 and engages on the shoulder of the container body 1.
In addition, the drooping cylinder 36 part below the slit 41 can be detached from the container body 1 by widening the interval of the separation slit 43 and expanding the drooping cylinder 36 part.
[0024]
【The invention's effect】
The fraud prevention cap according to claim 1 or 3 is configured such that an identification plate or an identification portion that forms a part of the hanging cylinder is fitted to a notch or an opening of the cap member so that the identification plate or the identification portion can be visually recognized from the outside. Since the engaging plates protrude from the hanging cylinder part excluding the part and these are engaged with the engaging ridges of the mouth and neck, it is possible to recognize the presence or absence of the unauthorized opening means before opening, Even after the cap member is opened by screwing, the identification plate or the identification portion is separated from the hanging cylinder portion excluding these and remains in the cutout portion or the opening portion. Therefore, the fact of unauthorized opening is not overlooked.
[0025]
In the tamper-proof cap according to the second aspect of the present invention, since the elongated cylinder is provided with the long groove, the elastic deformation in the circumferential direction of the drooping cylinder can be increased when the cap member is rotated. The separation break of the identification plate at the time becomes easier.
[0026]
In the tamper-proof cap according to the fourth aspect of the present invention, since the inner cylinder is provided and the upright plate is fitted between the inner and outer cylinders, the upright plate does not easily come out of the opening.
Further, since the separation slit is provided, the slit can be widened to expand the drooping cylinder part, and therefore the drooping cylinder part other than the identification part can be easily detached from the container body.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a first embodiment of a tamper-proof cap according to the present invention.
FIG. 2 is also a rear view.
FIG. 3 is an exploded view showing a state where the identification cylinder is removed from the cap member.
FIG. 4 is a rear view showing a state in which the cap member is screwed off from the mouth and neck portion.
FIG. 5 is a cross-sectional view showing a second half portion of a second embodiment of a fraud prevention cap according to the present invention.
FIG. 6 is a perspective view of the identification cylinder.
FIG. 7 is a view corresponding to FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container body 3 Mouth neck part 4 Engaging protrusion 5, 30 Peripheral wall 6, 31 Outward flange 7, 34 Inner cylinder 8, 32 Outer cylinder 9 Inner / outer double cylinder 10 Notch part 11, 36 Drooping cylinder 12 Thick part 13 Identification plate 14 Cut-off line 15 Cut portion 16 Thin pieces 17 and 39 Engagement plate 20 Long groove 35 Opening portion 37 Standing plate 40 Connecting protrusion 41 Narrow slit 42 Identification portion 43 Separation slit A, C Cap member B, D Identification cylinder

Claims

The peripheral wall 5 with the upper surface closed is screwed onto the outer surface of the mouth / neck portion 3 of the container body 1, the inner / outer double cylinder 9 is suspended from the lower surface of the outward flange 6 attached to the lower end of the peripheral wall, and the lower rear portion of the outer cylinder 8 A cap member A having a notch 10 formed therein;
The upper part of the hanging cylinder 11 is fitted into the gap between the inner and outer double cylinders 9, the upper part of the hanging cylinder 11 located in the notch part 10 is defined as the thick part 12, and the outer surface of the thick part is entered into the notch part 10. At the same time, the thick portion 12 and the hanging cylinder 11 portion above the thick portion are used as the identification plate 13, and the separation lines 14 are vertically provided on both the left and right sides of the identification plate, and the hanging cylinder below the identification plate 13. 11 portions are cut out, and the identification plate 13 and the hanging cylinder 11 portion excluding the identification plate are connected by a breakable thin piece 16 provided between the upper left and right ends of the cut portion 15 and the lower ends of both separation lines 14. Further, an engagement plate 17 is protruded inwardly from the inner surface of the lower part of the drooping cylinder excluding the identification plate 13, and the engagement plate is engaged with the lower surface of the engagement protrusion 4 provided around the lower outer surface of the mouth neck portion 3. An identification cylinder B,
The identification plate 13 part above the thick part 12 is fixed between the inner and outer double cylinders 9,
The thickness of the thin piece 16 is set to a value that can be broken by raising the identification plate 13 by turning the cap member A in the screwing direction.
An anti-fraud cap characterized by that.

A plurality of long grooves 20 having an upper end opening and a lower end closing are vertically provided in the hanging cylinder 11.
The cap for fraud prevention according to claim 1.

A peripheral wall 30 with an upper surface closed is screwed onto the outer surface of the mouth-and-neck portion 3 of the container body 1, and an outward flange-like wall 31 having a plurality of openings is attached to the lower end of the peripheral wall. A cap member C suspended from
The upper outer surface of the hanging cylinder 36 is fitted to the lower inner surface of the outer cylinder 32, and a plurality of upright plates 37 are erected from the upper end portion of the hanging cylinder, and these upright plates are inserted into the opening 35 so as not to be pulled out. The upper part of the upright plate is exposed from the upper surface of the opening, and the engaging plate 39 is protruded inward from the inner surface of the lower part of the drooping cylinder, and the engaging ridge 4 is provided around the lower outer surface of the mouth and neck portion 3. An identification cylinder D that is in close proximity or sliding contact with the lower surface;
In the identification cylinder, a plurality of connecting ridges 40 are provided on the inner surface of the hanging cylinder 36 between the upright plate 37 and the engaging plate 39, and are vertically provided at predetermined intervals in the circumferential direction, and the connecting ridges are excluded. The hanging cylinder 36 portion between the upper and lower ends of the connecting protrusion is cut up and down at a plane intersecting with the axis, and a slit 41 is provided between both cut surfaces, so that the hanging cylinder 36 portion and the upright plate above the slit. 37 in the identification part 42,
The cross-sectional area of the connecting ridge 40 is set to a value that can be broken by raising the identification portion 42 by turning the cap member C in the screwing direction.
An anti-fraud cap characterized by that.

From the inner periphery of the outward flange-like wall 31, the inner cylinder 34 is suspended shorter than the outer cylinder 32, the upright plate 37 is inserted between the inner and outer cylinders so as not to be drawn out, and further suspended below the slit 41. The slits 43 were separated from the cylindrical portion 36 and vertically opened by opening the slits 41.
The cap for fraud prevention according to claim 3.