JP3883158B2

JP3883158B2 - Non-capable cap

Info

Publication number: JP3883158B2
Application number: JP12475699A
Authority: JP
Inventors: 當麻　　徹; 孝之後藤
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 1999-04-30
Filing date: 1999-04-30
Publication date: 2007-02-21
Anticipated expiration: 2019-04-30
Also published as: JP2000313467A

Description

【０００１】
【発明の属する技術分野】
本発明は容器体口頸部へ装着させるキャップに関し、特に、いったん開栓した後は再度の閉栓が不能な再栓不能キャップに関する。
【０００２】
【従来の技術】
一般に、商品の流通経路においては容器体口頸部を閉塞するキャップは容易に開栓できないように装着させられている。
【０００３】
【発明が解決しようとする課題】
しかし、商品の流通経路において開栓困難に装着させられたキャップでも開栓することは不可能ではなく、このため安全性の点から開栓の事実が容易に判別しうるキャップが望まれていた。
【０００４】
請求項１記載の発明は、開栓に際しては、必然的にキャップが破断するようにして、開栓の事実が容易に判別されるようにするものである。
請求項２記載の発明は、上記請求項１記載の発明が有する解決課題を有するほか、逆転防止用の係合歯を設けることにより、筒状栓を開栓方向へのみ回動させるようにして開栓容易にすると共に、摺動筒上端面を傾斜させることにより、破断容易にしようとするものである。
【０００５】
【課題を解決するための手段】
第１の手段として、胴部２上端部から起立する容器体口頸部３へ嵌合させた破断用の摺動筒１０と、該摺動筒を介して口頸部へ装着させた筒状栓２０とからなり、
上記摺動筒１０は、筒体１１を容器体口頸部外面へ回動不能に、かつ上下動自在に嵌合させ、
上記筒状栓２０は、上記摺動筒上端面に当接して容器体口頸部上端面を閉塞する、摺動筒１０より大外径の頂板２１外周から周壁２２を垂設し、該周壁を摺動筒１０外面へ螺合させて、周壁２２下部を容器体胴部２の上部へ係合部４、２６を介して抜出し不能に、かつ回動自在に係合させ、かつ上記頂板２１中央部を、摺動筒１０外面と周壁２２内面との環状間隙の上方頂板２１部分への破断部２７の周設により除去板部２８となし、
上記周壁２２と摺動筒１０とを、周壁２２の一方向への回動で摺動筒１０が上昇可能に螺合させた。
【０００６】
第２の手段として、上記第１の手段を有すると共に、容器体口頸部３外面と摺動筒１０内面との一方に係合溝６を、他方に係合突条１２を、それぞれ縦設して、これら係合溝６と係合突条１２とを回動不能に係合させ、
又上記容器体口頸部３の下部外面と筒状栓周壁２２の下部内面とのそれぞれに、周壁２２の他方向への逆転防止用の係合歯５、２５を形成してこれらを係合させ、
更に上記摺動筒１０上端面を傾斜させた。
【０００７】
【発明の実施の形態】
以下、本発明に係る再栓不能キャップの実施の形態を図面を参照しながら説明する。
本発明に係る再栓不能キャップは、摺動筒と筒状栓とを主要部材とする。
まず、キャップを装着させる容器体について説明すると、容器体１は胴部２上端部から肩部を介して口頸部３を起立し、肩部の内周部に外向きフランジ４を付設すると共に、口頸部３の下端部外面の前後両部に第１係合歯５を形成し、さらに、該第１係合歯５より上方口頸部３部分外面の前後両部に係合溝６を縦設する。
【０００８】
１０は摺動筒で、筒体１１を口頸部３外面へ嵌合させて、筒体内面に縦設した係合突条１２を口頸部３の係合溝６へ係合させる。この場合、筒体１１上端面を口頸部３上端面よりもやや上方に位置させる。
なお、筒体１１の上端面を、図５及び図６に示すように傾斜させることも可能である。
また、上記では口頸部３に係合溝６を、また、筒体１１に係合突条１２を形成したが、これとは逆に口頸部３に係合突条を、筒体１１に係合溝を形成しても同一の作用効果が得られる。
さらに、筒体１１外面に螺旋状の突条からなる雄ねじ１３を形成する。
【０００９】
２０は筒状栓で、摺動筒１０上端面を閉塞する頂板２１外周から周壁２２を垂設して、該周壁上部を摺動筒１０外面へ嵌合させて、周壁内面に形成した螺旋状の突条からなる雌ねじ２３を雄ねじ１３へ螺合させる。この場合、これら雌雄両ねじは、周壁２２の一方向への回動で摺動筒１０が上昇可能に形成する。
一方、周壁２２下部外面を、上向き段部を介して大外径部２４に形成し、該大外径部の上部内面に第２係合歯２５を形成して、該第２係合歯を第１係合歯５へ係合させる。これら両係合歯は、周壁２２の一方向への回動のみを許容して逆転を不能にするように形成する。
また、大外径部２４の下部内面に抜出し阻止用突条２６を周設して、該突条上面を外向きフランジ４下面へ回動自在に係合させる。
さらに、頂板２１中央部を、摺動筒１０外面と周壁２２内面との環状間隙の上方頂板部分への破断線２７周設により除去板部２８に形成する。
なお、破断線２７を形成する代わりに連結片を設けることも可能である。
２９は除去板部２８下面から垂下した短筒で、口頸部３内面へ嵌合させている。
【００１０】
次に本実施形態の作用について説明する。
図１は閉栓状態を示し、この状態から開栓するには、図７に矢印で示すように筒状栓２０を一方向、すなわち時計方向へ回動させればよく、すると図８及び図９に示すように、摺動筒１０が上昇して破断線２７を破断させることにより除去板部２８を頂板２１から分離させる。
【００１１】
このように、開栓するには筒状栓２０を破断させるほかなく、いったん破断させた筒状栓２０で再度容器体口頸部を閉塞させることは不可能である。
なお、除去板部２８で口頸部上端面を閉塞させることは短筒２９が短いことから殆ど不可能である。
【００１２】
【発明の効果】
請求項１及び２記載の発明は、上面閉塞の筒状栓を容器体口頸部へ抜出し不能に嵌合させたので、開栓するには筒状栓を破断させるほかなく、いったん破断した筒状栓でリキャップすることは不可能であり、従って、流通経路における開栓の事実を視認することは極めて容易である。
【００１３】
請求項２記載の発明は、周壁の他方向への逆転防止用の係合歯を形成したので、周壁の開栓方向を容易に知ることができ、従って、開栓が容易になる。
また、摺動筒１０の上端面を傾斜させたので、開栓に際して摺動筒から除去板部に作用する力が除去板部２８の一箇所に集中することになり、このため破断が容易になり、かつ容器体内容物の注出も容易になる。
【図面の簡単な説明】
【図１】本発明に係る再栓不能キャップの開栓前の状態を示す断面図。
【図２】同じく、容器体の口頸部を示す斜視図。
【図３】同じく、口頸部の平面図。
【図４】同じく、第１係合歯の平面図。
【図５】同じく、摺動筒の他の実施形態を示す断面図。
【図６】同じく、図５に示す摺動筒の斜視図。
【図７】同じく、開栓前の状態を示す斜視図。
【図８】同じく、開栓後の状態を示す斜視図。
【図９】同じく、開栓後の状態を示す断面図。
【符号の説明】
１容器体
２胴部
３口頸部
４外向きフランジ
５第１係合歯
６係合溝
１０摺動筒
１１筒体
１２係合突条
２０筒状栓
２１頂板
２２周壁
２５第２係合歯
２６抜出し阻止用突条
２７破断線
２８除去板部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cap to be attached to a container body neck and neck, and more particularly, to a cap which cannot be re-sealed once it has been opened.
[0002]
[Prior art]
In general, in a distribution channel of merchandise, a cap that closes the container neck is attached so that it cannot be easily opened.
[0003]
[Problems to be solved by the invention]
However, it is not impossible to open the cap even if the cap is difficult to open in the distribution channel of the product. For this reason, a cap that can easily determine the fact of opening has been desired from the viewpoint of safety. .
[0004]
According to the first aspect of the present invention, when opening the cap, the cap is necessarily broken so that the fact of the opening can be easily discriminated.
The invention described in claim 2 has the problem to be solved by the invention described in claim 1 above, and by providing an engagement tooth for preventing reverse rotation, the cylindrical plug is rotated only in the opening direction. In addition to facilitating opening, the upper end surface of the sliding cylinder is inclined to facilitate breakage.
[0005]
[Means for Solving the Problems]
As a first means, a slidable sliding cylinder 10 fitted to a container body neck portion 3 standing up from an upper end portion of the trunk portion 2 and a cylindrical shape attached to the mouth neck portion via the sliding barrel. It consists of a stopper 20 and
The sliding cylinder 10 fits the cylinder 11 to the outer surface of the container body neck and neck so as not to rotate and to be movable up and down.
The cylindrical plug 20 suspends a peripheral wall 22 from the outer periphery of the top plate 21 having a larger outer diameter than the sliding cylinder 10, which contacts the upper end surface of the sliding cylinder and closes the upper end surface of the container body neck. Are screwed onto the outer surface of the sliding cylinder 10, and the lower portion of the peripheral wall 22 is engaged with the upper portion of the container body 2 through the engaging portions 4 and 26 so as not to be able to be removed and rotated, and the top plate 21 is engaged. The central portion is formed as a removal plate portion 28 by providing a broken portion 27 around the upper top plate 21 portion of the annular gap between the outer surface of the sliding cylinder 10 and the inner surface of the peripheral wall 22;
The peripheral wall 22 and the sliding cylinder 10 are screwed together so that the sliding cylinder 10 can be raised by rotating the peripheral wall 22 in one direction.
[0006]
As the second means, the first means is provided, and the engaging groove 6 is provided vertically on one of the outer surface of the container body neck portion 3 and the inner surface of the sliding cylinder 10, and the engaging protrusion 12 is provided vertically on the other. Then, these engagement grooves 6 and the engagement protrusions 12 are engaged so as not to rotate ,
In addition, engagement teeth 5 and 25 for preventing reverse rotation of the peripheral wall 22 in the other direction are formed on the lower outer surface of the container body neck portion 3 and the lower inner surface of the cylindrical plug peripheral wall 22 to engage them. Let
Further, the upper end surface of the sliding cylinder 10 was inclined.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a non-recapable cap according to the present invention will be described below with reference to the drawings.
The non-recapable cap according to the present invention has a sliding cylinder and a cylindrical stopper as main members.
First, the container body to which the cap is attached will be described. The container body 1 has the neck 2 raised from the upper end portion of the trunk portion 2 through the shoulder portion, and the outward flange 4 is attached to the inner peripheral portion of the shoulder portion. The first engagement teeth 5 are formed on both front and rear portions of the outer surface of the lower end portion of the mouth and neck portion 3, and the engagement grooves 6 are formed on both front and rear portions of the outer surface of the mouth neck portion 3 above the first engagement teeth 5. Is installed vertically.
[0008]
Reference numeral 10 denotes a sliding cylinder, which engages the engaging protrusion 12 formed vertically on the inner surface of the cylindrical body 11 with the engaging groove 6 of the oral neck part 3 by fitting the cylindrical body 11 to the outer surface of the oral neck part 3. In this case, the upper end surface of the cylindrical body 11 is positioned slightly above the upper end surface of the mouth / neck portion 3.
In addition, it is also possible to incline the upper end surface of the cylinder 11 as shown in FIG.5 and FIG.6.
Further, in the above, the engaging groove 6 is formed in the mouth / neck portion 3 and the engaging protrusion 12 is formed in the cylinder 11, but on the contrary, the engaging protrusion is formed in the mouth / neck portion 3. Even if the engagement groove is formed on the same, the same effect can be obtained.
Furthermore, the external thread 13 which consists of a helical protrusion on the outer surface of the cylinder 11 is formed.
[0009]
Reference numeral 20 denotes a cylindrical plug, and a peripheral wall 22 is suspended from the outer periphery of the top plate 21 that closes the upper end surface of the sliding cylinder 10, and the upper part of the peripheral wall is fitted to the outer surface of the sliding cylinder 10 to form a spiral shape formed on the inner surface of the peripheral wall. A female screw 23 made of a protrusion is screwed onto the male screw 13. In this case, these male and female screws are formed so that the sliding cylinder 10 can be raised by turning in one direction of the peripheral wall 22.
On the other hand, the lower outer surface of the peripheral wall 22 is formed in the large outer diameter portion 24 through the upward stepped portion, the second engagement teeth 25 are formed on the upper inner surface of the large outer diameter portion, and the second engagement teeth are Engage with the first engagement teeth 5. These both engaging teeth are formed so as to allow only rotation in one direction of the peripheral wall 22 and disable reverse rotation.
Further, an extraction preventing protrusion 26 is provided around the lower inner surface of the large outer diameter portion 24 so that the upper surface of the protrusion is rotatably engaged with the lower surface of the outward flange 4.
Furthermore, the central portion of the top plate 21 is formed in the removal plate portion 28 by providing a break line 27 around the upper top plate portion of the annular gap between the outer surface of the sliding cylinder 10 and the inner surface of the peripheral wall 22.
In addition, it is also possible to provide a connecting piece instead of forming the breaking line 27.
Reference numeral 29 denotes a short cylinder that hangs down from the lower surface of the removal plate portion 28 and is fitted to the inner surface of the mouth and neck portion 3.
[0010]
Next, the operation of this embodiment will be described.
FIG. 1 shows a closed state, and in order to open the plug from this state, the cylindrical plug 20 may be rotated in one direction, that is, clockwise as shown by an arrow in FIG. As shown in FIG. 3, the sliding cylinder 10 is raised to break the breaking line 27, thereby separating the removal plate portion 28 from the top plate 21.
[0011]
As described above, in order to open the container, the tubular stopper 20 must be broken, and it is impossible to close the container neck and neck again with the tubular stopper 20 once broken.
It should be noted that it is almost impossible to close the upper end surface of the mouth and neck with the removal plate portion 28 because the short tube 29 is short.
[0012]
【The invention's effect】
According to the first and second aspects of the present invention, since the cylindrical stopper with the upper surface closed is fitted into the container body neck so that it cannot be pulled out, the cylindrical stopper can be opened only by breaking the cylindrical stopper. It is impossible to recap with a stopper, so it is very easy to see the fact of opening in the distribution channel.
[0013]
According to the second aspect of the present invention, since the engagement teeth for preventing the reverse rotation of the peripheral wall in the other direction are formed, the opening direction of the peripheral wall can be easily known, so that the plug can be easily opened.
Further, since the upper end surface of the sliding cylinder 10 is inclined, the force acting on the removal plate part from the sliding cylinder when opening the plug is concentrated on one place of the removal plate part 28, and therefore, the breakage is easy. And the dispensing of the contents of the container body is facilitated.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state before opening a non-recapable cap according to the present invention.
FIG. 2 is a perspective view showing the mouth and neck of the container body.
FIG. 3 is also a plan view of the mouth and neck.
FIG. 4 is a plan view of the first engaging teeth, similarly.
FIG. 5 is a cross-sectional view showing another embodiment of the sliding cylinder.
6 is a perspective view of the sliding cylinder shown in FIG.
FIG. 7 is a perspective view showing a state before opening in the same manner.
FIG. 8 is a perspective view showing a state after the opening, similarly.
FIG. 9 is a cross-sectional view showing a state after the opening, similarly.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container body 2 trunk | drum 3 mouth neck part 4 outward flange 5 1st engagement tooth 6 engagement groove | channel 10 sliding cylinder 11 cylinder 12 engagement protrusion 20 cylindrical plug 21 top plate 22 peripheral wall 25 2nd engagement tooth 26 Extraction prevention protrusion 27 Break line 28 Removal plate

Claims

It consists of a sliding tube 10 for breaking fitted to the container body neck portion 3 standing up from the upper end portion of the body portion 2 and a cylindrical plug 20 attached to the mouth neck portion via the sliding tube,
The sliding cylinder 10 fits the cylinder 11 to the outer surface of the container body neck and neck so that the cylinder 11 cannot rotate and can move up and down.
The cylindrical plug 20 suspends a peripheral wall 22 from the outer periphery of the top plate 21 having a larger outer diameter than the sliding cylinder 10, which contacts the upper end surface of the sliding cylinder and closes the upper end surface of the container body neck. Are screwed onto the outer surface of the sliding cylinder 10, and the lower portion of the peripheral wall 22 is engaged with the upper portion of the container body 2 through the engaging portions 4 and 26 so as not to be able to be removed and rotated, and the top plate 21 is engaged. The central portion is formed as a removal plate portion 28 by providing a break portion 27 around the upper top plate 21 portion of the annular gap between the outer surface of the sliding cylinder 10 and the inner surface of the peripheral wall 22;
A non-recapable cap, wherein the peripheral wall 22 and the sliding cylinder 10 are screwed together so that the sliding cylinder 10 can be raised by rotating the peripheral wall 22 in one direction.

An engaging groove 6 is provided vertically on one of the outer surface of the container body neck portion 3 and the inner surface of the sliding cylinder 10, and an engaging protrusion 12 is provided vertically on the other. Engage non-rotatably ,
In addition, engagement teeth 5 and 25 for preventing reverse rotation of the peripheral wall 22 in the other direction are formed on the lower outer surface of the container body neck portion 3 and the lower inner surface of the cylindrical plug peripheral wall 22 to engage them. Let
2. The non-recapable cap according to claim 1, wherein the upper end surface of the sliding cylinder is inclined.