JP3868704B2 - Plastic container - Google Patents

Description

【０００１】
【発明の属する技術分野】
本発明は、容器体口頸部の外面へ注出筒付きキャップ状部材を嵌合させた合成樹脂製容器に関する。
【０００２】
【従来の技術】
従来、容器体口頸部嵌合用の装着筒上端から内向きフランジ状頂壁を介して注出筒を起立すると共に、該注出筒の下端をプルリング付きの閉塞壁で密閉したキャップ状部材を容器体口頸部の外面に嵌合させた容器が周知であり、該従来容器では、容器体口頸部外面と装着筒内面とに装着筒抜け止め用の凹凸の係合手段を設けて、流通過程で注出キャップが容器体口頸部から悪戯目的等で取り外されることを防止するよう形成している。
【０００３】
【発明が解決しようとする課題】
近時、資源再利用等の見地から、ペットボトル等の廃棄物を分別して廃棄することが要望されているが、従来容器では、容器体口頸部からキャップ状部材を取り外すことが極めて困難であるため、キャップ状部材を装着させたままペットボトルが廃棄されているのが現状であった。
【０００４】
本発明は、装着筒抜け止め用の係合手段を、容器体口頸部に対する装着筒の回動によって容易に外すことができるよう形成することで、容器体とキャップ状部材を簡単に分別廃棄できるよう設けた。
【０００５】
【課題を解決するための手段】
第１の手段として、口頸部５を起立する容器体１と、
上記口頸部外面へ嵌合させた注出筒12付きキャップ状部材10とからなり、
上記容器体口頸部の下端部には、上向き段部６を周設して、口頸部外面一部を外方へ張出しさせることで上向き段部６上面の複数箇所から小山状部７, ７をほぼ等間隔に起立させると共に、
口頸部５の上部外面には係合突条８を周設させ、更に、上記該係合突条と小山状部７, ７との間の口頸部部分外面へは、上方から見て小山状部７よりも横巾が大でかつ張出し巾を小とする***部９, ９を付形しておき、
又上記キャップ状部材の口頸部嵌合用筒部分11内面には、上記係合突条８下面へ係合する小山状部７と同数の横条17をほぼ等間隔に横設すると共に、これ等横条の中間部から縦条18を垂下させ、かつ各縦条下方の口頸部嵌合用筒部分11下端面からは、上記小山状部７間に位置させて逆小山状部19を垂下させておき、
上記容器体１に対してキャップ状部材10を回動させたとき、縦条18が***部９外面へ乗り上げることで、係合突条８下面に対する横条17の係合巾が減少し、続いて逆小山状部19が小山状部７上へ乗り上げることで、横条17が係合突条８を乗越え可能に形成した。
【０００６】
第２の手段として、第１の手段を有すると共に、注出筒12を弾性変形可能に形成し、かつ口頸部嵌合用筒部分11外面のほぼ全体にカバー筒20を遊嵌させて該カバー筒の上端内面を口頸部嵌合用筒部分の上部外面へ複数の破断片21, 21を介して一体に結合させ、これ等破断片を破断してカバー筒20を除去しない限りキャップ状部材10の回動が不能に形成し、
又キャップ状部材の注出筒12下端を破断除去可能なプルリング15付き閉塞壁13で密閉した。
【０００７】
【発明の実施の形態】
１は容器体であり、該容器体は、胴部２上端部を小外径として、該小外径部の下部に係合凹部３を周設すると共に、その小外径部上端から肩部４を介して起立する口頸部５の下端部に上向き段部６を周設し、かつ口頸部５の下部外面を外方へ張出しすることで、図１のように上向き段部６上面の複数箇所から小山状部７, ７をほぼ等間隔に起立している。又口頸部５の上部外面には、係合突条８を周設し、該係合突条と上記各小山状部７, ７との間の口頸部部分外面に、上方から見て小山状部７, ７よりも横巾が大でかつ張出し巾を小とする、上面を凸状彎曲面とした***部９, ９を付形させている。
【０００８】
10は、容器体口頸部へ装着させるキャップ状部材であり、先ず、公知の部分から説明すると、該部材は、口頸部嵌合用の筒部分11を有し、該口頸部嵌合用筒部分の上端から内向きフランジ状頂壁を介して注出筒12を起立し、かつ該注出筒の下端を密閉する閉塞壁13の外周に肉薄破断線14を周設すると共に、該肉薄破断線が囲む閉塞壁部分の側部上面からプルリング15付きの支柱部16を起立し、プルリング引上げにより、肉薄破断線14を破断させて、外周部を除いた閉塞壁部分を取り除いて注出孔を開口させるよう形成している。
【０００９】
本発明では、上記注出筒12を口頸部嵌合用筒部分11に比して薄肉に形成して弾性変形可能となし、上記口頸部嵌合用筒部分11が注出筒12を介して回動されることを、該注出筒が弾性変形して阻止するよう設けている。
【００１０】
又本発明では、上記口頸部嵌合用筒部分11の下部を大内径として、該大内径部11ａ上方の筒壁部分内面を上記口頸部５の上部外面に嵌合させ、又上記大内径部11ａ直ぐ上方の筒壁部分内面に、上記小山状部７, ７と同数の横条17をほぼ等間隔に横設して、これ等横条の上面を上記係合突条８下面へ係合させている。更に、本発明では、それ等横条17の長手方向中間下方の筒壁外面部分に縦条18を設け、かつ各縦条下方の口頸部嵌合用筒部分11の下端面部分から、上記小山状部７, ７間に位置させて逆小山状部19を垂下させ、図３ａ, ｂが示す状態から、口頸部に対して口頸部嵌合用筒部分11を回動させたとき、図４ｂが示すように縦条18下部が上記***部９外面へ乗り上げることで、図４ａのように口頸部の係合突条８下面に対する横条17の係合巾が減少し、又該状態から口頸部嵌合用筒部分11を更に回動させると、図５ｂが示すように逆小山状部19が小山状部７上へ乗り上げることで、図５ａのように横条17が係合突条８を乗越え可能に形成している。
【００１１】
20はカバー筒であり、該カバー筒は、上記口頸部嵌合用筒部分11外面のほぼ全体に遊嵌させて該嵌合用筒部分を握持して回動することを阻止するよう設けると共に、該カバー筒の上端内面を口頸部嵌合用筒部分11の上部外面へ複数の破断片21を介して一体に結合させ、該カバー筒を回動させると、カバー筒が弾性変形して上記破断片21が破断されるよう設けている。
【００１２】
30はキャップであり、頂壁31周縁から垂設した周壁32の下端部を容器体胴部上方の小外径部外面へ嵌合させて、該小外径部外方の周壁部分下部に周設した係合突起33を既述係合凹部３へ係脱自在に係合させ、又頂壁31の下面中央部から垂下したシール筒34外面を上記注出筒12の上部内面へ水密に嵌合させている。該キャップは、必要に応じて形成する。
【００１３】
上記容器体は、例えば、ポリエチレンテレフタレートで成形し、又キャップ状部材10とカバー筒20は、ポリエチレンテレフタレート以外の合成樹脂材で一体成形すればよい。
【００１４】
本発明容器を廃棄する場合には、容器体とキャップ状部材10を分別して廃棄するものとし、先ず、図２が示す状態から、破断片21をねじ切ってカバー筒20を取り外し、次いで、口頸部に対して口頸部嵌合用筒部分11を回動させると、図４ｂが示すように、縦条18が口頸部の***部９外面へ乗り上げるため、嵌合用筒部分11の一部が外方へ押圧されて弾性変形し、よって、図４ａのように口頸部の係合突条８下面に対する横条17の係合巾が減少することとなる。又該状態から口頸部嵌合用筒部分11を更に回動させると、図５ｂが示すように、逆小山状部19が小山状部７上へ乗り上げるため、口頸部嵌合用筒部分11が押上げられて、図５ａのように横条17が係合突条８を乗越えることとなり、よって、口頸部嵌合用筒部分11を口頸部から引き抜いて、キャップ状部材10と容器体を分別廃棄する。
【００１５】
【発明の効果】
本発明は、請求項１記載の構造としたから、図３が示す状態から、口頸部に対して口頸部嵌合用筒部分11を回動させることで、既述のように、係合突条８下面に対する横条17の係合巾を減少させることができ、又小山状部７上面の斜面を利用して口頸部嵌合用筒部分11を押上げることで、係合突条８下面から横条17を容易に離脱させることができ、よって、容器体からキャップ状部材10を簡単に取り外して分別廃棄することができる。
【００１６】
請求項２記載の構造としたから、破断片21を破断させてカバー筒20を除去しない限り、口頸部嵌合用筒部分11を口頸部から抜き出すことができないこととなり、よって、悪戯目的等でのキャップ状部材10の不正取り外しを効果的に防止できる。
【図面の簡単な説明】
【図１】 本発明容器の一実施形態を示す分解斜視図である。
【図２】 同実施形態の縦断面図である。
【図３】 ａ図は、同実施形態の要部拡大縦断面図、ｂ図は、同実施形態の要部拡大展開図である。
【図４】 縦条が***部外面へ乗り上げた状態を説明する図であり、ａ図は、要部拡大縦断面図、ｂ図は、要部拡大展開図である。
【図５】 横条が係合突条を乗越えた状態を説明する図であり、ａ図は、要部拡大縦断面図、ｂ図は、要部拡大展開図である。
【符号の説明】
７…小山状部 ９…***部 10…キャップ状部材
17…横条 18…縦条 19…逆小山状部 20…カバー筒[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic resin container in which a cap-shaped member with a dispensing cylinder is fitted to the outer surface of a container body neck.
[0002]
[Prior art]
Conventionally, a cap-shaped member in which a pouring cylinder is erected from an upper end of a mounting cylinder for fitting a container body neck to a neck via an inward flange-shaped top wall, and a lower end of the pouring cylinder is sealed with a closing wall with a pull ring. Containers fitted to the outer surface of the container body neck are well known, and the conventional container is provided with concave and convex engagement means for retaining the mounting cylinder on the outer surface of the container body neck and the inner surface of the mounting cylinder. In the process, the pouring cap is formed to be prevented from being removed from the container neck and neck for the purpose of mischief.
[0003]
[Problems to be solved by the invention]
Recently, from the viewpoint of resource reuse, etc., it has been demanded to separate and dispose of waste such as PET bottles. However, with conventional containers, it is extremely difficult to remove the cap-like member from the container neck. For this reason, PET bottles have been discarded with the cap-like member attached.
[0004]
According to the present invention, the container body and the cap-shaped member can be easily separated and disposed by forming the engagement means for retaining the mounting cylinder so that it can be easily removed by the rotation of the mounting cylinder with respect to the mouth and neck of the container body. Was provided.
[0005]
[Means for Solving the Problems]
As a first means, the container body 1 that stands up the mouth-and-neck portion 5;
It consists of a cap-shaped member 10 with a dispensing cylinder 12 fitted to the outer surface of the mouth and neck,
An upward stepped portion 6 is provided at the lower end of the container body neck and neck portion, and a part of the outer surface of the mouth and neck portion is projected outward, so that a plurality of small ridges 7, 7 stand up at approximately equal intervals,
An engaging ridge 8 is provided around the upper outer surface of the mouth-and-neck portion 5, and the outer surface of the mouth-and-neck portion between the engaging ridge and the small ridges 7, 7 is viewed from above. The raised portions 9 and 9 having a larger width than the small mountain portion 7 and a smaller overhang width are shaped,
In addition, on the inner surface of the cap-neck portion 11 of the cap-like member, the same number of horizontal stripes 17 as the small mountain-like portions 7 that engage with the lower surface of the engagement protrusion 8 are provided at substantially equal intervals. The vertical strip 18 is suspended from the middle portion of the equal horizontal stripe, and the inverted small mountain-shaped portion 19 is suspended from the lower end surface of the neck portion 11 for fitting the mouth and neck at the lower portion of the vertical stripe to be positioned between the small mountain-shaped portions 7. Let me know
When the cap-shaped member 10 is rotated with respect to the container body 1, the vertical strip 18 rides on the outer surface of the raised portion 9, whereby the engagement width of the horizontal strip 17 with respect to the lower surface of the engagement protrusion 8 decreases. Then, the reverse small mountain-shaped portion 19 rides on the small mountain-shaped portion 7, so that the horizontal stripe 17 is formed so as to be able to get over the engagement protrusion 8.
[0006]
As the second means, the first means is provided, the dispensing cylinder 12 is formed so as to be elastically deformable, and the cover cylinder 20 is loosely fitted to almost the entire outer surface of the mouth-and-neck fitting cylinder portion 11 so as to cover the cover. The cap-shaped member 10 is used unless the upper inner surface of the cylinder is integrally connected to the upper outer surface of the tube portion for fitting the neck and neck portion via a plurality of broken pieces 21, 21, and the broken pieces are broken to remove the cover cylinder 20. The rotation is impossible,
Further, the lower end of the pouring cylinder 12 of the cap-like member was sealed with a blocking wall 13 with a pull ring 15 that can be removed by breakage.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Reference numeral 1 denotes a container body. The container body has an upper end portion of the body portion 2 as a small outer diameter, and an engaging recess 3 is provided around the lower portion of the small outer diameter portion, and the shoulder portion extends from the upper end of the small outer diameter portion. 1 is provided at the lower end portion of the mouth-and-neck portion 5 standing up through 4 and the lower outer surface of the mouth-and-neck portion 5 is extended outwardly so that the upper surface of the upward step portion 6 as shown in FIG. The small mountain-shaped portions 7 and 7 are erected at substantially equal intervals from a plurality of locations. Further, an engaging ridge 8 is provided around the upper outer surface of the mouth-and-neck portion 5, and the outer surface of the mouth-neck portion between the engaging ridge and each of the small mountain-like portions 7 and 7 is viewed from above. Raised portions 9 and 9 having a convex ridged curved surface on the upper surface and having a larger width than the small mountain-shaped portions 7 and 7 and a smaller overhang width are formed.
[0008]
10 is a cap-like member to be attached to the container body neck and neck. First, from a known portion, the member has a tube portion 11 for fitting the mouth and neck, and the tube for fitting the mouth and neck The pour cylinder 12 is erected from the upper end of the part through the inward flange-shaped top wall, and the thin break line 14 is provided around the outer periphery of the closing wall 13 that seals the lower end of the pour cylinder, and the thin break The column 16 with the pull ring 15 is erected from the upper surface of the side wall of the closed wall that is surrounded by the wire, and the pull-up pulls up to break the thin broken line 14 and remove the closed wall portion except the outer peripheral portion to form the pouring hole. It is formed to open.
[0009]
In the present invention, the dispensing tube 12 is formed thinner than the neck portion 11 for fitting the neck and neck, and is elastically deformable. The tube portion 11 for fitting the neck portion is interposed via the dispensing tube 12. The turning tube is prevented from being turned by elastic deformation.
[0010]
Further, in the present invention, the lower part of the neck portion 11 for fitting the neck and neck portion has a large inner diameter, the inner surface of the cylindrical wall portion above the large inner diameter portion 11a is fitted to the upper outer surface of the neck portion 5 and the large inner diameter. On the inner surface of the cylindrical wall portion immediately above the portion 11a, the same number of horizontal strips 17 as the small mountain-shaped portions 7 and 7 are provided at almost equal intervals, and the upper surfaces of these horizontal strips are engaged with the lower surfaces of the engaging protrusions 8. It is combined. Further, in the present invention, the vertical stripes 18 are provided on the cylindrical wall outer surface portions of the horizontal stripes 17 in the middle in the longitudinal direction of the horizontal stripes 17, and the small ridges are formed from the lower end face portions of the neck portions 11 for fitting the necks and necks below the vertical stripes. When the inverted small mountain-shaped portion 19 is hung down between the shape-like portions 7 and 7 and the mouth-and-neck fitting tube portion 11 is rotated with respect to the mouth-and-neck portion from the state shown in FIGS. As shown in FIG. 4b, when the lower part of the vertical strip 18 rides on the outer surface of the raised portion 9, the engagement width of the horizontal strip 17 with respect to the lower surface of the engagement projection 8 of the mouth and neck as shown in FIG. When the tube portion 11 for fitting the neck and neck is further rotated from the side, the reverse ridge portion 19 rides on the ridge portion 7 as shown in FIG. It is formed to be able to get over Article 8.
[0011]
20 is a cover cylinder, and the cover cylinder is provided so as to be loosely fitted to almost the entire outer surface of the mouth-and-neck part fitting cylinder part 11 so as to prevent the fitting cylinder part from being held and rotated. The upper end inner surface of the cover tube is integrally coupled to the upper outer surface of the mouth / neck fitting tube portion 11 via a plurality of fracture pieces 21, and the cover tube is elastically deformed by rotating the cover tube. The broken piece 21 is provided to be broken.
[0012]
Reference numeral 30 denotes a cap, which fits the lower end portion of the peripheral wall 32 suspended from the periphery of the top wall 31 to the outer surface of the small outer diameter portion above the container body and surrounds the lower portion of the peripheral wall portion outside the small outer diameter portion. The provided engaging projection 33 is detachably engaged with the engaging recess 3 described above, and the outer surface of the seal cylinder 34 suspended from the center of the lower surface of the top wall 31 is fitted into the upper inner surface of the dispensing cylinder 12 in a watertight manner. It is combined. The cap is formed as necessary.
[0013]
The container body may be molded from, for example, polyethylene terephthalate, and the cap-shaped member 10 and the cover tube 20 may be integrally molded from a synthetic resin material other than polyethylene terephthalate.
[0014]
When discarding the container of the present invention, the container body and the cap-shaped member 10 are separated and discarded. First, from the state shown in FIG. When the mouth-and-neck fitting tube portion 11 is rotated with respect to the neck portion, as shown in FIG. 4b, the vertical stripe 18 runs on the outer surface of the raised portion 9 of the mouth-and-neck portion. Is pressed outward and elastically deformed, and as a result, the engagement width of the horizontal strip 17 with respect to the lower surface of the engagement projection 8 of the mouth-and-neck portion is reduced as shown in FIG. 4a. Further, when the mouth-and-neck fitting tube portion 11 is further rotated from this state, as shown in FIG. 5b, the inverted hill-like portion 19 rides on the hill-like portion 7, so that the mouth-and-neck fitting tube portion 11 is As shown in FIG. 5a, the horizontal strip 17 gets over the engaging projection 8, and thus the neck portion 11 for fitting the neck and neck portion is pulled out from the neck portion, and the cap-shaped member 10 and the container body are pulled out. Separate and discard.
[0015]
【The invention's effect】
Since the present invention has the structure according to claim 1, from the state shown in FIG. 3, by rotating the mouth / neck portion fitting cylinder portion 11 with respect to the mouth / neck portion, The engagement width of the horizontal strip 17 with respect to the lower surface of the ridge 8 can be reduced, and the engagement ridge 8 can be formed by pushing up the mouth-and-neck portion fitting cylinder portion 11 using the slope of the upper surface of the small ridge 7. The horizontal strip 17 can be easily detached from the lower surface, and thus the cap-shaped member 10 can be easily removed from the container body and disposed of separately.
[0016]
Since the structure according to claim 2 is adopted, the neck portion 11 for fitting the mouth and neck portion cannot be extracted from the mouth and neck portion unless the broken piece 21 is broken and the cover tube 20 is removed. Thus, unauthorized removal of the cap-like member 10 can be effectively prevented.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of the container of the present invention.
FIG. 2 is a longitudinal sectional view of the same embodiment.
FIG. 3A is an enlarged vertical sectional view of a main part of the embodiment, and FIG. B is an enlarged development view of a main part of the embodiment.
FIGS. 4A and 4B are diagrams for explaining a state in which the vertical stripes run on the outer surface of the raised portion. FIG. 4A is an enlarged vertical sectional view of the main part, and FIG.
FIGS. 5A and 5B are diagrams for explaining a state in which the horizontal strip has moved over the engaging projection, and FIG. 5A is an enlarged vertical sectional view of the main part, and FIG.
[Explanation of symbols]
7 ... Oyama-like part 9 ... Raised part 10 ... Cap-like member
17 ... Horizontal strip 18 ... Vertical strip 19 ... Reverse hill-shaped section 20 ... Cover tube

Claims (2)

口頸部５を起立する容器体１と、
上記口頸部外面へ嵌合させた注出筒12付きキャップ状部材10とからなり、
上記容器体口頸部の下端部には、上向き段部６を周設して、口頸部外面一部を外方へ張出しさせることで上向き段部６上面の複数箇所から小山状部７, ７をほぼ等間隔に起立させると共に、
口頸部５の上部外面には係合突条８を周設させ、更に、上記該係合突条と小山状部７, ７との間の口頸部部分外面へは、上方から見て小山状部７よりも横巾が大でかつ張出し巾を小とする***部９, ９を付形しておき、
又上記キャップ状部材の口頸部嵌合用筒部分11内面には、上記係合突条８下面へ係合する小山状部７と同数の横条17をほぼ等間隔に横設すると共に、これ等横条の中間部から縦条18を垂下させ、かつ各縦条下方の口頸部嵌合用筒部分11の下端面部分からは、上記小山状部７間に位置させて逆小山状部19を垂下させておき、
上記容器体１に対してキャップ状部材10を回動させたとき、縦条18が***部９外面へ乗り上げることで、係合突条８下面に対する横条17の係合巾が減少し、続いて逆小山状部19が小山状部７上へ乗り上げることで、横条17が係合突条８を乗越え可能に形成した
ことを特徴とする合成樹脂製容器。A container body 1 that stands up the mouth and neck 5;
It consists of a cap-shaped member 10 with a dispensing cylinder 12 fitted to the outer surface of the mouth and neck,
An upward stepped portion 6 is provided at the lower end of the container body neck and neck portion, and a part of the outer surface of the mouth and neck portion is projected outward, so that a plurality of small ridges 7, 7 stand up at approximately equal intervals,
An engaging ridge 8 is provided around the upper outer surface of the mouth-and-neck portion 5, and the outer surface of the mouth-and-neck portion between the engaging ridge and the small ridges 7, 7 is viewed from above. The raised portions 9 and 9 having a larger width than the small mountain portion 7 and a smaller overhang width are shaped,
In addition, on the inner surface of the cap-neck portion 11 of the cap-like member, the same number of horizontal stripes 17 as the small mountain-like portions 7 that engage with the lower surface of the engagement protrusion 8 are provided at substantially equal intervals. The vertical stripe 18 is suspended from the middle part of the equal horizontal stripe, and the reverse small ridge 19 is located between the small ridges 7 from the lower end surface portion of the neck portion 11 for fitting the neck and neck portion below the vertical stripe. Hang down
When the cap-shaped member 10 is rotated with respect to the container body 1, the vertical strip 18 rides on the outer surface of the raised portion 9, whereby the engagement width of the horizontal strip 17 with respect to the lower surface of the engagement protrusion 8 decreases. A synthetic resin container in which the horizontal strip 17 is formed so as to be able to get over the engaging protrusion 8 by the reverse small mountain-shaped portion 19 riding on the small mountain-shaped portion 7. 上記注出筒12を弾性変形可能に形成し、かつ上記口頸部嵌合用筒部分11外面のほぼ全体にカバー筒20を遊嵌させて該カバー筒の上端内面を口頸部嵌合用筒部分の上部外面へ複数の破断片21, 21を介して一体に結合させ、これ等破断片を破断してカバー筒20を除去しない限りキャップ状部材10の回動が不能に形成し、
又キャップ状部材の注出筒12下端を破断除去可能なプルリング15付き閉塞壁13で密閉した
ことを特徴とする請求項１記載の合成樹脂製容器。The pouring tube 12 is formed to be elastically deformable, and the cover tube 20 is loosely fitted to almost the entire outer surface of the mouth / neck portion fitting tube portion 11 so that the upper end inner surface of the cover tube is fitted to the mouth / neck portion fitting tube portion. The cap-shaped member 10 is made impossible to rotate unless the cover cylinder 20 is removed by breaking the broken pieces 21 and 21 integrally with the upper outer surface of the broken pieces 21 and 21.
The synthetic resin container according to claim 1, wherein the lower end of the pouring cylinder 12 of the cap-like member is sealed with a closing wall 13 with a pull ring 15 that can be removed by breakage.

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