JP2003341705A - Synthetic resin-made cap of container - Google Patents
Synthetic resin-made cap of containerInfo
- Publication number
- JP2003341705A JP2003341705A JP2002154593A JP2002154593A JP2003341705A JP 2003341705 A JP2003341705 A JP 2003341705A JP 2002154593 A JP2002154593 A JP 2002154593A JP 2002154593 A JP2002154593 A JP 2002154593A JP 2003341705 A JP2003341705 A JP 2003341705A
- Authority
- JP
- Japan
- Prior art keywords
- circumferential
- thin
- breaking
- line
- slits
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、合成樹脂製容器
蓋、それに限定されるものではないが、殊に粉ミルク等
の粉末のための所謂広口容器に適する合成樹脂製容器蓋
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin container lid, and more particularly, but not exclusively, to a synthetic resin container lid suitable for a so-called wide-mouth container for powder such as milk powder.
【０００２】[0002]
【従来の技術】特開平１１−４３１６８号公報には広口
容器に適する合成樹脂製容器蓋が開示されている。この
容器蓋は円形天面壁とこの天面壁の周縁から垂下する円
筒形スカート壁とを具備する。スカート壁には周方向所
定領域に配置された薄肉ヒンジ手段、薄肉ヒンジ手段の
両側に配置された開口、薄肉ヒンジ手段の直径方向反対
側に配置され略１８０度の角度範囲に渡って延在する第
一の周方向破断手段、及び第一の周方向破断手段の周方
向両側から上記開口の各々まで延在する第二の周方向破
断手段が配設されている。第一の周方向破断手段は、周
方向両端に位置し軸線方向に延びるスリット、軸線方向
に間隔をおいてスリットの一方らスリットの他方まで周
方向に延び且つ両者間に切り取りストリップを規定する
上側薄肉破断ライン及び下側薄肉破断ライン、スリット
の一方に隣接して切り取りストリップの外面に付設され
た把持片から構成されている。第二の周方向破断ライン
は周方向に間隔をおいて周方向に延びる複数個のスリッ
トから構成されている。スカート壁の、第一の周方向破
断手段及び第二の周方向破断手段よりも上方の部分に
は、周方向に連続して延びる係止突条が配設されてい
る。かかる係止突条は容器の口頸部に係止せしめられ
る。天面壁の内面には下方に垂下する環状シール片が配
設されており、かかる環状シール片は容器の口頸部の内
周面に密接せしめられる。2. Description of the Related Art Japanese Unexamined Patent Publication No. 11-43168 discloses a synthetic resin container lid suitable for a wide-mouthed container. The container lid has a circular top wall and a cylindrical skirt wall depending from the periphery of the top wall. On the skirt wall, thin-walled hinge means arranged in a predetermined region in the circumferential direction, openings arranged on both sides of the thin-walled hinge means, and diametrically opposite sides of the thin-walled hinge means, extending over an angle range of about 180 degrees. A first circumferential breaking means and a second circumferential breaking means extending from both circumferential sides of the first circumferential breaking means to each of the openings are provided. The first circumferential breaking means is a slit located at both ends in the circumferential direction and extending in the axial direction, the upper side extending in the circumferential direction from one of the slits to the other of the slits at intervals in the axial direction and defining a cutting strip therebetween. It consists of a thin break line and a lower thin break line, and a gripping piece attached to the outer surface of the cut strip adjacent to one of the slits. The second circumferential break line is composed of a plurality of circumferentially spaced slits extending in the circumferential direction. A locking ridge extending continuously in the circumferential direction is provided in a portion of the skirt wall above the first circumferential breaking means and the second circumferential breaking means. Such a locking ridge is locked on the neck of the container. An annular seal piece that hangs downward is disposed on the inner surface of the top wall, and the annular seal piece is brought into close contact with the inner peripheral surface of the mouth-neck portion of the container.
【０００３】上述した容器蓋は、そのスカート壁の下
部、更に詳しくは第一の周方向破断手段及び第二の周方
向破断手段よりも下方の部分、を容器の口頸部に固定す
ることによって容器の口頸部に装着され、容器の口頸部
を閉じる。容器の内容物を消費する際には、第一の周方
向破断手段の把持片を把持して第一の周方向破断手段の
上側薄肉破断ライン及び下側薄肉破断ラインを破断して
切り取りストリップを切り取る。次いで、旋回回動部、
即ち第一の周方向破断手段及び第二の周方向破断手段よ
りも上方に位置する部分を、薄肉ヒンジ手段の直径方向
反対側に位置する部位に指を掛けて上方及び薄肉ヒンジ
手段に向かう方向に強制し、第二の周方向破断手段を破
断、更に詳しくは複数個のスリット間に残留せしめられ
ている橋絡部を破断しながら、薄肉ヒンジ手段を中心と
して旋回回動部を旋回回動せしめ、かくして容器の口頸
部を解放せしめる。The container lid described above is fixed to the mouth and neck of the container by fixing the lower portion of the skirt wall, more specifically, the portion below the first circumferential breaking means and the second circumferential breaking means. It is attached to the mouth and neck of the container and closes the mouth and neck of the container. When consuming the contents of the container, the gripping piece of the first circumferential breaking means is gripped to break the upper thin break line and the lower thin break line of the first circumferential breaking means to cut off the strip. cut out. Next, the turning and rotating unit,
That is, a direction in which a portion located above the first circumferential breaking means and the second circumferential breaking means is hung on a portion located on the diametrically opposite side of the thin hinge means toward the upper and thin hinge means. To break the second circumferential breaking means, and more specifically, to break the bridging portion left between the plurality of slits, while turning the turning rotating portion around the thin hinge means. Allow the mouth and neck of the container to release.
【０００４】[0004]
【発明が解決しようとする課題】而して、特開平１１−
４３１６８号公報に開示されている上述したとおりの容
器蓋には、（１）第二の周方向破断手段が周方向に間隔
をおいて周方向に延びる複数個のスリットから構成され
ており、複数個のスリットに埃が堆積し得る空間を形成
するので、埃が堆積し得る空間が多数存在することにな
る、（２）容器蓋を射出成形によって容器蓋を成形する
際に、第二の周方向破断手段を構成する周方向に間隔を
おいて周方向に延びるスリット間の残留する複数個の橋
絡部を通して合成樹脂素材を流動せしめることが必要で
ある故に、成形効率が制限される、（３）第一の周方向
破断手段の破断に引き続いて第二の周方向破断手段の破
断を開始する際に、容器の口頸部に対する係止突条の係
止を解除しながら第二の周方向破断手段の破断を開始し
なければならない等に起因して、相当大きな力を加えて
旋回回動部を旋回回動せしめることが必要であり、従っ
て特に女性乃至子供にとっては旋回回動部の旋回回動が
困難であることが少なくない、（４）旋回回動部を薄肉
ヒンジ手段を中心として所定角度旋回回動せしめると、
環状シール片の一部が容器の口頸部の頂面に当接し、こ
れによって旋回回動部を所定角度旋回回動せしめられた
状態に一時的に保持するように意図されているが、環状
シール片の一部と口頸部の頂面との当接が必ずしも充分
でなく、旋回回動部を所定角度旋回回動せしめた状態に
充分確実に保持することができない、（５）旋回回動部
を所定角度旋回回動せした状態から閉方向に旋回回動し
て元の状態に戻し容器の口頸部を閉じる際に、環状シー
ル片が容器の口頸部の頂面に当接することによって、旋
回回動部の閉方向への旋回回動が阻害される虞がある、
という解決すべき問題が存在する。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the container lid as described above disclosed in Japanese Patent No. 43168, (1) the second circumferential breaking means is composed of a plurality of slits extending in the circumferential direction at intervals in the circumferential direction. Since a space in which dust can be accumulated is formed in each slit, there are many spaces in which dust can be accumulated. (2) When the container lid is formed by injection molding, the second circumference is formed. Molding efficiency is limited because it is necessary to flow the synthetic resin material through a plurality of remaining bridging portions between the slits extending in the circumferential direction at intervals in the circumferential direction that constitute the direction breaking means. 3) When the rupture of the second circumferential rupturing means is started subsequent to the rupture of the first circumferential rupturing means, the locking ridge is released from the locking neck of the container while the second circumferential breaking means is released. Directional breaking means must start breaking Due to the above, it is necessary to apply a considerable amount of force to rotate and rotate the rotating and rotating unit, and therefore it is often difficult for the female or child to rotate and rotate the rotating and rotating unit. (4) When the turning and turning unit is turned and turned about the thin hinge means by a predetermined angle,
It is intended that a part of the annular sealing piece abuts on the top surface of the mouth-neck portion of the container, thereby temporarily holding the swivel-rotating portion in a state in which the swivel-rotating portion is swung by a predetermined angle. The contact between a part of the seal piece and the top surface of the mouth / neck is not always sufficient, and it is not possible to reliably hold the state in which the turning / rotating portion has been swung by a predetermined angle, (5) swiveling When the moving part is swung by a predetermined angle and swung in the closing direction to return to the original state, and when the mouth-neck part of the container is closed, the annular seal piece contacts the top surface of the mouth-neck part of the container. As a result, there is a possibility that the turning and turning of the turning and turning unit in the closing direction may be hindered.
There is a problem to be solved.
【０００５】本発明は上記事実に鑑みてなさされたもの
であり、その第一の技術的課題は、周方向に延びる複数
個のスリットが存在せず、従って複数個のスリットに起
因する上記問題（１）及び（２）が存在せず、そして更
に第二の周方向破断手段の破断を充分容易に開始するこ
とができる、従って上記問題（３）が存在しない、新規
且つ改良された合成樹脂製容器蓋を提供することであ
る。The present invention has been made in view of the above facts, and the first technical problem is that the plurality of slits extending in the circumferential direction do not exist, and therefore the above-mentioned problems caused by the plurality of slits. A new and improved synthetic resin in which (1) and (2) are absent, and moreover the rupture of the second circumferential rupture means can be initiated sufficiently easily and thus the above problem (3) does not exist. It is to provide a container lid.
【０００６】本発明の第二の技術的課題は、周方向に延
びる複数個のスリットが存在せず、従って複数個のスリ
ットに起因する上記問題（１）及び（２）が存在せず、
そして更に旋回回動部を所定角度旋回回動せしめると、
旋回回動部がかかる角度位置に充分確実に保持されるに
もかかわらず、旋回回動部を充分容易に閉方向に旋回回
動せしめることができる、従って上記問題（４）及び
（５）が存在しない、新規且つ改良された合成樹脂製容
器蓋を提供することである。A second technical problem of the present invention is that a plurality of slits extending in the circumferential direction do not exist, and therefore the problems (1) and (2) due to the plurality of slits do not exist,
Then, when the turning and turning unit is further turned and turned by a predetermined angle,
Even though the swivel turning portion is held in such an angular position with sufficient certainty, the swivel turning portion can be swung in the closing direction with sufficient ease. Therefore, the above problems (4) and (5) are solved. It is to provide a new and improved synthetic resin container lid that does not exist.
【０００７】[0007]
【課題を解決するための手段】本発明の一局面によれ
ば、上記第一の技術的課題を達成する合成樹脂製容器蓋
として、円形天面壁と該天面壁の周縁から垂下する円筒
形スカート壁とを具備し、該スカート壁には周方向所定
領域に配置された薄肉ヒンジ手段、該薄肉ヒンジ手段の
周方向両側に配置された開口、該薄肉ヒンジ手段の直径
方向反対側に配置され１７０乃至２１０度の角度範囲に
渡って延在する第一の周方向破断手段、及び該第一の周
方向破断手段の周方向両側から該開口の各々まで延在す
る第二の周方向破断手段が配設されており、該第一の周
方向破断手段は、周方向両端に位置し軸線方向に延びる
スリット、軸線方向に間隔をおいて該スリットの一方か
ら該スリットの他方まで周方向に延び且つ両者間に切り
取りストリップを規定する上側薄肉破断ライン及び下側
薄肉破断ライン、該スリットの一方に隣接して該切り取
りストリップの外面に付設された把持片から構成されて
おり、該第一の周方向破断手段における該上側薄肉破断
ライン及び該下側薄肉破断ラインを破断し、次いで該第
二の周方向破断ラインを破断せしめると、該第一の周方
向破断手段及び該第二の周方向破断手段よりも上方に存
在する旋回回動部が該薄肉ヒンジ手段を中心として上方
へ旋回回動可能になる、合成樹脂製容器蓋において、該
第二の周方向破断手段は、該第一の周方向破断手段の該
スリットの各々から該開口の各々まで周方向に延びる薄
肉破断ラインから構成されており、該旋回回動部には容
器の口頸部に係止せしめられる係止手段が形成されてお
り、該係止手段は周方向に間隔をおいて周方向に延びる
複数個の係止突条から構成されており、該第二の周方向
破断手段の、該第一の周方向破断手段に続く両破断開始
端部が位置する両破断開始角度領域においては該係止突
条が存在しない、ことを特徴とする合成樹脂製容器蓋が
提供される。According to one aspect of the present invention, as a synthetic resin container lid that achieves the first technical problem, a circular top wall and a cylindrical skirt hanging down from the peripheral edge of the top wall. A thin-walled hinge means disposed in a predetermined region in the circumferential direction on the skirt wall, openings arranged on both sides in the circumferential direction of the thin-walled hinge means, and diametrically opposite sides of the thin-walled hinge means 170. A first circumferential breaking means extending over an angular range of 210 to 210 degrees, and second circumferential breaking means extending from both sides in the circumferential direction of the first circumferential breaking means to each of the openings. Arranged, the first circumferential direction breaking means, the slits located at both ends in the circumferential direction and extending in the axial direction, extending in the circumferential direction from one of the slits to the other of the slits at intervals in the axial direction. Cut a strip between the two An upper thin wall break line, a lower thin wall break line, and a gripping piece attached to the outer surface of the cut strip adjacent to one of the slits, and the upper thin wall break line in the first circumferential breaking means. When the line and the lower thin line breaking line are broken, and then the second circumferential breaking line is broken, the swirl existing above the first circumferential breaking means and the second circumferential breaking means In a synthetic resin container lid in which a rotating portion is capable of pivoting upward about the thin hinge means, the second circumferential breaking means includes each of the slits of the first circumferential breaking means. To each of the openings, the thin-walled breaking line extends in the circumferential direction, and the turning / rotating portion is formed with locking means for locking the mouth / neck portion of the container. Around the circumference Both breaking start angle regions, each of which is composed of a plurality of locking projections extending in the circumferential direction, in which both breaking start end portions of the second circumferential breaking means are located following the first circumferential breaking means. In the above, there is provided the synthetic resin container lid characterized in that the locking projection is not present.
【０００８】本発明の他の局面によれば、上記第一の技
術的課題を達成する合成樹脂製容器蓋として、円形天面
壁と該天面壁の周縁から垂下する円筒形スカート壁とを
具備し、該スカート壁には周方向所定領域に配置された
薄肉ヒンジ手段、該薄肉ヒンジ手段の周方向両側に配置
された開口、該薄肉ヒンジ手段の直径方向反対側に配置
され１７０乃至２１０度の角度範囲に渡って延在する第
一の周方向破断手段、及び該第一の周方向破断手段の周
方向両側から該開口の各々まで延在する第二の周方向破
断手段が配設されており、該第一の周方向破断手段は、
周方向両端に位置し軸線方向に延びるスリット、軸線方
向に間隔をおいて該スリットの一方から該スリットの他
方まで周方向に延び且つ両者間に切り取りストリップを
規定する上側薄肉破断ライン及び下側薄肉破断ライン、
該スリットの一方に隣接して該切り取りストリップの外
面に付設された把持片から構成されており、該第一の周
方向破断手段における該上側薄肉破断ライン及び該下側
薄肉破断ラインを破断し、次いで該第二の周方向破断ラ
インを破断せしめると、該第一の周方向破断手段及び該
第二の周方向破断手段よりも上方に存在する旋回回動部
が該薄肉ヒンジ手段を中心として上方へ旋回回動可能に
なる、合成樹脂製容器蓋において、該第二の周方向破断
手段は、該第一の周方向破断手段の該スリットの各々か
ら該開口の各々まで周方向に延びる薄肉破断ラインから
構成されており、該天面壁の内面から垂下し、容器の口
頸部の上端部外周面に密接せしめられる環状外側シール
片が配設されており、該第二の周方向破断手段の、該第
一の周方向破断手段に続く両破断開始端部が位置する両
破断開始角度領域の少なくとも上流端部においては該環
状外側シール片は局部的に内径を増大せしめることによ
って局部的に厚さが低減せしめられている、ことを特徴
とする合成樹脂製容器蓋が提供される。According to another aspect of the present invention, as a synthetic resin container lid that achieves the first technical object, a circular top wall and a cylindrical skirt wall hanging down from the peripheral edge of the top wall are provided. A thin-walled hinge means arranged in a predetermined area in the circumferential direction on the skirt wall, openings arranged on both sides in the circumferential direction of the thin-walled hinge means, and an angle of 170 to 210 degrees arranged on the diametrically opposite side of the thin-walled hinge means. First circumferential breaking means extending over the range and second circumferential breaking means extending from both circumferential sides of the first circumferential breaking means to each of the openings are provided. , The first circumferential breaking means,
Slits located at both ends in the circumferential direction and extending in the axial direction, an upper thin break line and a lower thin wall extending in the circumferential direction from one of the slits to the other of the slits at intervals in the axial direction and defining a cut strip between the two. Breaking line,
It is composed of a gripping piece attached to the outer surface of the cut strip adjacent to one of the slits, and breaks the upper thin wall break line and the lower thin wall break line in the first circumferential breaking means, Then, when the second circumferential breaking line is broken, the swiveling and rotating portion existing above the first circumferential breaking means and the second circumferential breaking means moves upward with the thin hinge means as the center. In a synthetic resin container lid that can be pivotally turned to, the second circumferential breaking means is a thin-wall breaking that extends circumferentially from each of the slits of the first circumferential breaking means to each of the openings. An annular outer seal piece, which is made up of a line, hangs down from the inner surface of the top wall and is brought into close contact with the outer peripheral surface of the upper end of the mouth and neck of the container, is provided for the second circumferential breaking means. , The first circumferential breaking hand The annular outer seal piece is locally reduced in thickness by locally increasing the inner diameter at least at the upstream end of both fracture start angle regions where both fracture start ends following are located. A synthetic resin container lid is provided.
【０００９】本発明の更に他の局面によれば、上記第二
の技術的課題を達成する合成樹脂製容器蓋として、円形
天面壁と該天面壁の周縁から垂下する円筒形スカート壁
とを具備し、該スカート壁には周方向所定領域に配置さ
れた薄肉ヒンジ手段、該薄肉ヒンジ手段の周方向両側に
配置された開口、該薄肉ヒンジ手段の直径方向反対側に
配置され１７０乃至２１０度の角度範囲に渡って延在す
る第一の周方向破断手段、及び該第一の周方向破断手段
の周方向両側から該開口の各々まで延在する第二の周方
向破断手段が配設されており、該第一の周方向破断手段
は、周方向両端に位置し軸線方向に延びるスリット、軸
線方向に間隔をおいて該スリットの一方から該スリット
の他方まで周方向に延び且つ両者間に切り取りストリッ
プを規定する上側薄肉破断ライン及び下側薄肉破断ライ
ン、該スリットの一方に隣接して該切り取りストリップ
の外面に付設された把持片から構成されており、該第一
の周方向破断手段における該上側薄肉破断ライン及び該
下側薄肉破断ラインを破断し、次いで該第二の周方向破
断ラインを破断せしめると、該第一の周方向破断手段及
び該第二の周方向破断手段よりも上方に存在する旋回回
動部が該薄肉ヒンジ手段を中心として上方へ旋回回動可
能になる、合成樹脂製容器蓋において、該スカート壁の
外周面には、該薄肉ヒンジ手段の下方から該薄肉ヒンジ
手段に沿ってその半径方向外側を上方に延びる支持突出
片が配設されていると共に、該薄肉ヒンジ手段の上方に
配設され、該旋回回動部が所定角度α旋回回動せしめら
れると該支持突出片の先端部を受け入れる支持凹部が配
設されている、ことを特徴とする合成樹脂製容器蓋が提
供される。According to still another aspect of the present invention, a synthetic resin container lid that achieves the second technical object is provided with a circular top wall and a cylindrical skirt wall hanging down from the peripheral edge of the top wall. On the skirt wall, thin-walled hinge means arranged in a predetermined region in the circumferential direction, openings arranged on both sides in the circumferential direction of the thin-walled hinge means, and 170 to 210 degrees arranged on the diametrically opposite side of the thin-walled hinge means. First circumferential breaking means extending over the angular range, and second circumferential breaking means extending from both circumferential sides of the first circumferential breaking means to each of the openings are provided. The first circumferential direction breaking means is a slit located at both ends in the circumferential direction and extending in the axial direction, and extending in the circumferential direction from one of the slits to the other of the slits at intervals in the axial direction and cut between the slits. Upper side defining strip A thin line breaking line and a lower thin line breaking line, and a gripping piece attached to the outer surface of the cut strip adjacent to one of the slits, and the upper thin line breaking line in the first circumferential breaking means and When the lower thin line breaking line is broken and then the second circumferential breaking line is broken, the swiveling rotation existing above the first circumferential breaking unit and the second circumferential breaking unit. In a synthetic resin container lid in which a portion can be pivoted upwardly about the thin-walled hinge means, the radius of the outer peripheral surface of the skirt wall from below the thin-walled hinge means along the thin-walled hinge means. A supporting protrusion extending upward in the direction outer side is disposed, and is disposed above the thin hinge means, and when the revolving pivot portion is pivotally rotated by a predetermined angle α, the tip portion of the supporting protrusion is. Accept A synthetic resin container lid is provided, in which a supporting recess is provided.
【００１０】該第二の周方向破断手段の該両破断開始角
度領域の各々の周方向角度は５乃至２０度であるのが好
ましい。好適実施形態においては、該天面壁の内面から
垂下し容器の口頸部の上端部外周面に密接せしめられる
環状外側シール片が配設されており、該係止手段は該環
状外側シール片の内周面に形成されている。該天面壁の
内面から垂下し容器の口頸部の上端部内周面に密接せし
められる環状内側シール片、及び該天面壁の内面に配置
され容器の口頸部の頂面に密接せしめられる環状シール
突条が配設されている。好ましくは、該第二の周方向破
断手段の該両破断開始角度領域の少なくとも上流端部に
おいて該環状外側シール片は局部的に内径を増大せしめ
ることによって局部的に厚さが低減せしめられている。
該第二の周方向破断手段の該両破断開始角度領域の少な
くとも上流端部と共に該第一の周方向破断手段の該スリ
ットが存在する角度領域においても該環状外側シール片
は局部的に内径を増大せしめることによって局部的に厚
さが低減せしめられているのが好適である。該スカート
壁の外周面には、該薄肉ヒンジ手段の下方から該薄肉ヒ
ンジ手段に沿ってその半径方向外側を上方に延びる支持
突出片が配設されていると共に、該薄肉ヒンジ手段の上
方に配置され、該旋回回動部が所定角度α旋回回動せし
められると該支持突出片の先端部を受け入れる支持凹部
が配設されているのが好適である。該所定角度αは９５
乃至１２０度でよい。The circumferential angle of each of the two fracture start angle regions of the second circumferential breaking means is preferably 5 to 20 degrees. In a preferred embodiment, an annular outer seal piece is provided which hangs down from the inner surface of the ceiling wall and is brought into close contact with the outer peripheral surface of the upper end portion of the mouth and neck of the container, and the locking means is provided on the annular outer seal piece. It is formed on the inner peripheral surface. An annular inner seal piece that hangs down from the inner surface of the top wall and is brought into close contact with the inner peripheral surface of the upper end of the mouth and neck of the container, and an annular seal that is arranged on the inner surface of the top wall and is brought into close contact with the top surface of the mouth and neck of the container A ridge is provided. Preferably, the annular outer seal piece is locally reduced in thickness by locally increasing the inner diameter at least at the upstream end of the both break initiation angle regions of the second circumferential breaking means. .
Even in the angular region where the slit of the first circumferential breaking means exists together with at least the upstream end portion of both the breaking starting angular regions of the second circumferential breaking means, the annular outer sealing piece locally has an inner diameter. It is preferable that the thickness is locally reduced by increasing the thickness. On the outer peripheral surface of the skirt wall, there is disposed a supporting projecting piece extending from below the thin-walled hinge means to the outer side in the radial direction upward along the thin-walled hinge means, and arranged above the thin-walled hinge means. It is preferable that a supporting recess is provided to receive the tip end portion of the supporting projection piece when the swivel rotating portion is swung by a predetermined angle α. The predetermined angle α is 95
To 120 degrees.
【００１１】[0011]
【発明の実施の形態】以下、本発明に従って構成された
合成樹脂製容器蓋の好適実施形態を図示している添付図
面を参照して、更に詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION In the following, a more detailed description will be given with reference to the accompanying drawings illustrating a preferred embodiment of a synthetic resin container lid constructed according to the present invention.
【００１２】図１乃至図４を参照して説明すると、本発
明に従がって構成された全体を番号２で示す合成樹脂製
容器蓋は、ポリエチレン及びポリプロピレンの如き適宜
の合成樹脂から一体に成形されている。かかる容器蓋２
は、円形天面壁４とこの天面壁４の周縁から垂下する円
筒形スカート壁６とを具備している。スカート壁６には
周方向所定領域に配置された薄肉ヒンジ手段８、薄肉ヒ
ンジ手段８の周方向両側に配置された矩形状開口１０、
薄肉ヒンジ手段８の直径方向反対側に配置された第一の
周方向破断手段１２、及び第一の周方向破断手段１２の
周方向両側から開口１０の各々まで延在する第二の周方
向破断手段１４が配設されている。第一の周方向破断手
段１２は、１７０乃至２１０度の角度範囲、好ましくは
略１８０度の角度範囲、に渡って延在せしめられてい
る。第一の周方向破断手段１２は、周方向両端に位置し
軸線方向に延びるスリット１６、軸線方向に間隔をおい
てスリット１６の一方からスリット１６の他方まで周方
向に延び且つ両者間に切り取りストリップ１８を規定す
る上側薄肉破断ライン２０及び下側薄肉破断ライン２
２、スリット１６の一方に隣接して切り取りストリップ
１８の外面に付設された把持片２４から構成されてい
る。スリット１６は上記薄肉ヒンジ手段８に対して略９
０度離隔した位置に配設されている。把持片２４は、ス
カート壁６の外周面に配設された基端部２６、基端部２
６から周方向に延びる延出部２８及び延出部２８の内面
からスカート壁６の外周面まで延びる破断可能な細い接
続片３０から構成されている。Referring to FIGS. 1 to 4, a synthetic resin container lid, generally designated by reference numeral 2, constructed according to the present invention is integrally formed from an appropriate synthetic resin such as polyethylene and polypropylene. It is molded. Such container lid 2
Has a circular top wall 4 and a cylindrical skirt wall 6 depending from the peripheral edge of the top wall 4. The thin-walled hinge means 8 arranged in a predetermined area in the circumferential direction on the skirt wall 6, the rectangular openings 10 arranged on both sides in the circumferential direction of the thin-walled hinge means 8,
A first circumferential breaking means 12 arranged on the diametrically opposite side of the thin hinge means 8 and a second circumferential breaking means extending from both circumferential sides of the first circumferential breaking means 12 to each of the openings 10. Means 14 are provided. The first circumferential breaking means 12 extends over an angle range of 170 to 210 degrees, preferably about 180 degrees. The first circumferential direction breaking means 12 includes slits 16 located at both ends in the circumferential direction and extending in the axial direction, and extending in the circumferential direction from one of the slits 16 to the other of the slits 16 at intervals in the axial direction, and a cut strip between the both. Upper thin break line 20 and lower thin break line 2 defining 18
2, a gripping piece 24 attached to the outer surface of the cut strip 18 adjacent to one of the slits 16. The slit 16 is approximately 9 with respect to the thin hinge means 8.
They are arranged at positions separated by 0 degree. The gripping piece 24 includes a base end portion 26 and a base end portion 2 arranged on the outer peripheral surface of the skirt wall 6.
6 includes an extending portion 28 extending in the circumferential direction and a thin rupturable connecting piece 30 extending from the inner surface of the extending portion 28 to the outer peripheral surface of the skirt wall 6.
【００１３】図１及び図４を参照して説明を続けると、
スカート壁６に配設された第二の周方向破断手段１４
は、第一の周方向破断手段１２のスリット１６の各々か
ら開口１０の各々まで周方向に延びる薄肉破断ライン３
２から構成されている。これによって、本発明の容器蓋
２においては埃を堆積し得る空間を比較的少なくできる
と共に成形効率が制限されるのを抑制することができ
る。また、図示の実施形態における第二の周方向破断手
段１４の薄肉破断ライン３２は、図１に図示する如く、
第一の周方向破断手段１２の上側薄肉破断ライン２０及
び開口１０上端と略同一の軸方向位置に配設されてい
る。そしてまた、後に更に言及する如く、第一の周方向
破断手段１２における上側薄肉破断ライン２０及び下側
薄肉破断ライン２２を破断し、次いで第二の周方向破断
ライン１４の薄肉破断ライン３２を破断せしめると、図
３及び図８を比較参照することによって理解されるとお
り、第一の周方向破断ライン１２及び第二の周方向破断
ライン１４よりも上方に存在する旋回回動部３４がスカ
ート壁６の下部、更に詳しくは第一の周方向破断手段１
２及び第二の周方向破断手段１４よりも下方の部分３６
に対して上記薄肉ヒンジ手段８を中心として上方に旋回
回動可能になる。Continuing the description with reference to FIGS. 1 and 4,
Second circumferential breaking means 14 arranged on the skirt wall 6
Is a thin-wall breaking line 3 that extends circumferentially from each of the slits 16 of the first circumferential breaking means 12 to each of the openings 10.
It consists of two. As a result, in the container lid 2 of the present invention, the space in which dust can be accumulated can be made relatively small and the molding efficiency can be restrained from being restricted. Further, the thin break line 32 of the second circumferential breaking means 14 in the illustrated embodiment is as shown in FIG.
It is arranged at substantially the same axial position as the upper thin-wall breaking line 20 and the upper end of the opening 10 of the first circumferential breaking means 12. Also, as further referred to later, the upper thin wall break line 20 and the lower thin wall break line 22 in the first circumferential breaking means 12 are broken, and then the thin wall break line 32 of the second circumferential break line 14 is broken. At best, as can be understood by comparing and referring to FIGS. 3 and 8, the swiveling and rotating portion 34 existing above the first circumferential break line 12 and the second circumferential break line 14 has a skirt wall. 6 lower part, more specifically the first circumferential breaking means 1
2 and the portion 36 below the second circumferential breaking means 14
On the other hand, it becomes possible to pivot upward about the thin hinge means 8 as a center.
【００１４】図１及び図３を参照して説明を続けると、
スカート壁６の外周面には、支持突出片３８及び支持凹
部４０とが配設されている。図示の実施形態における支
持突出片３８は第一の周方向破断手段１２及び第二の周
方向破断手段１４よりも下方の部分３６に配設されてお
り、薄肉ヒンジ手段８の下方から薄肉ヒンジ手段８に沿
ってスカート壁６の半径方向外側を上方に延びている。
図示の実施形態においては、支持凹部４０は薄肉ヒンジ
手段８の上方における旋回回動部３４に配設されてい
る。また、スカート壁６の外周面には、旋回回動部３４
における、薄肉ヒンジ手段８の直径方向反対側に鍔４２
も配設されている。第一の周方向破断手段１２及び第二
の周方向破断手段１４よりも下方の部分３６における内
周面には、図５乃至図７に図示する如く、その下部に周
方向に延びる環状係合手段４４が配設されている。Continuing the description with reference to FIGS. 1 and 3,
A support protrusion 38 and a support recess 40 are provided on the outer peripheral surface of the skirt wall 6. The support projection piece 38 in the illustrated embodiment is arranged in a portion 36 below the first circumferential breaking means 12 and the second circumferential breaking means 14, and is arranged from below the thin hinge means 8 to the thin hinge means. 8 extends upwardly on the radially outer side of the skirt wall 6.
In the illustrated embodiment, the support recess 40 is arranged in the swivel pivot 34 above the thin hinge means 8. Further, on the outer peripheral surface of the skirt wall 6, the turning and rotating portion 34 is provided.
At the diametrically opposite side of the thin hinge means 8 at
Is also provided. As shown in FIGS. 5 to 7, the inner circumferential surface of the portion 36 below the first circumferential breaking means 12 and the second circumferential breaking means 14 has an annular engaging portion extending in the circumferential direction at a lower portion thereof. Means 44 are provided.
【００１５】上記天面壁４は、図３乃至図７を比較参照
すれば理解されるとおり、その中央部に位置する円形隆
起部４６、環状周縁部４８及び隆起部４６の周縁から環
状周縁部４８の内周縁に向かって下方に延びる筒状部５
０から構成されている。図示の実施形態においては、天
面壁４の周縁部４８の内面に実質上鉛直に垂下する環状
外側シール片５２が配設されており、環状外側シール片
５２の内周面の下部には係止手段５４が形成されてい
る。かかる係止手段５４は周方向に間隔をおいて周方向
に延びる複数個（図４においては３個）の係止突条５６
から構成されており、上記第二の周方向破断手段１４
の、第一の周方向破断手段１２に続く両破断開始端部が
位置する両破断開始角度領域５８においては係止突条５
６が存在しない。好ましくは、第二の周方向破断手段１
４の両破断開始角度領域５８の各々の周方向角度は５乃
至２０度である。第二の周方向破断手段１４の両破断開
始角度領域５８の少なくとも上流端部において上記環状
外側シール片５２は、図４及び図７を比較参照すれば理
解されるとおり、局部的に内径を増大せしめることによ
って局部的に厚さが低減せしめられている。好ましく
は、第二の周方向破断手段１４の両破断開始角度領域５
８の少なくとも上流端部と共に第一の周方向破断手段１
２のスリット１６が存在する角度領域においても環状外
側シール片５２は局部的に内径を増大せしめることによ
って局部的に厚さが低減せしめられている。また、図示
の実施形態における天面壁４には、隆起部４６の内面か
ら垂下する環状内側シール片６０、及び周縁部４８の内
面から垂下する環状外側シール突条６２も配設されてい
る。環状内側シール片６０は上記環状外側シール片５２
から半径方向内方に所定距離離間せしめられて配置され
ており、天面壁４の隆起部４６の周縁の内面から下方に
向かって半径方向外方に幾分傾斜して延びている。環状
シール突条６２は、上記環状外側シール片５２と環状内
側シール片６０との間に配置せしめられており、天面壁
４の周縁部４８の内面から下方に向かって凸状に膨出せ
しめられている膨出部から形成されている。As will be understood from a comparative reference to FIGS. 3 to 7, the top wall 4 has a circular raised portion 46, an annular peripheral portion 48 located at the center thereof, and a peripheral edge portion of the raised portion 46 to the annular peripheral portion 48. Cylindrical portion 5 extending downward toward the inner peripheral edge of the
It consists of zero. In the illustrated embodiment, an annular outer seal piece 52 that hangs substantially vertically is disposed on the inner surface of the peripheral edge portion 48 of the top wall 4, and is locked to the lower portion of the inner peripheral surface of the annular outer seal piece 52. Means 54 are formed. The locking means 54 includes a plurality of (three in FIG. 4) locking projections 56 extending in the circumferential direction at intervals in the circumferential direction.
And the second circumferential breaking means 14
Of the locking ridge 5 in both break starting angle regions 58 where both break starting ends following the first circumferential breaking means 12 are located.
6 does not exist. Preferably, the second circumferential breaking means 1
The circumferential angle of each of the two fracture start angle regions 58 of 4 is 5 to 20 degrees. At least at the upstream end portions of the both break start angle regions 58 of the second circumferential break means 14, the annular outer seal piece 52 locally increases the inner diameter, as can be understood by comparing FIG. 4 and FIG. 7. The thickness is locally reduced due to the tightening. Preferably, both break start angle regions 5 of the second circumferential breaking means 14
First circumferential breaking means 1 with at least the upstream end of 8
Even in the angular region where the two slits 16 are present, the annular outer seal piece 52 is locally reduced in thickness by locally increasing the inner diameter. The ceiling wall 4 in the illustrated embodiment is also provided with an annular inner seal piece 60 that hangs from the inner surface of the raised portion 46 and an annular outer seal ridge 62 that hangs from the inner surface of the peripheral edge portion 48. The annular inner seal piece 60 is the annular outer seal piece 52.
From the inner surface of the peripheral edge of the raised portion 46 of the top wall 4 to the lower side with a slight inclination toward the outer side in the radial direction. The annular seal ridge 62 is disposed between the annular outer seal piece 52 and the annular inner seal piece 60, and bulges downward from the inner surface of the peripheral edge portion 48 of the top wall 4 in a convex shape. It is formed from a bulging part.
【００１６】図５乃至図７には、容器蓋２が適用される
容器６４の口頸部６６も図示されている。かかる口頸部
６６はブリキ薄板又はアルミニウム薄板の如き適宜の金
属薄板から形成されており、主部６８及び中栓部７０を
含んでいる。主部６８の上端部は略円筒形状であり、軸
線方向中央に係止あご部７２を有する。主部６８の上端
部における係止あご部７２よりも上方は主部６８の上端
部における係止あご部７２よりも下方より外径が小さく
せしめられており、主部６８の上端部における係止あご
部７２よりも上方には被巻き締めカール７４が形成され
ている。中栓部７０は円形中央部７６と、この中央部７
６の周縁から実質上鉛直に上方に延びる筒状鉛直部７８
と、鉛直部７８の上端から延びる被巻き締めカール８０
とを含んでいる。かように構成された中栓部７０は、被
巻き締めカール８０を主部６８の被巻き締めカール７４
に巻き締めることによって、主部６８に固定されてい
る。また、中栓部７０の中央部７６には開口が形成され
ており（図示しない）、かかる開口の周辺における中央
部７６の上面にシール部材８２が剥離可能に接合されて
いる。5 to 7 also show the mouth / neck portion 66 of the container 64 to which the container lid 2 is applied. The mouth / neck portion 66 is formed of an appropriate metal thin plate such as a tin plate or an aluminum plate, and includes a main portion 68 and an inner plug portion 70. The upper end of the main portion 68 has a substantially cylindrical shape, and has a locking jaw 72 at the center in the axial direction. The outer diameter above the locking jaw 72 at the upper end of the main portion 68 is smaller than the outer diameter below the lower locking jaw 72 at the upper end of the main portion 68, and the locking at the upper end of the main portion 68 is performed. A curl 74 to be wound is formed above the jaw portion 72. The inner plug portion 70 includes a circular central portion 76 and the central portion 7
Cylindrical vertical portion 78 extending substantially vertically upward from the peripheral edge of 6
And a curl 80 to be wound that extends from the upper end of the vertical portion 78.
Includes and. In the thus configured inner plug portion 70, the curl to be fastened 80 to be fastened is the curl to be fastened 74 of the main portion 68.
It is fixed to the main part 68 by being wound around. Further, an opening is formed in the central portion 76 of the inner plug portion 70 (not shown), and the seal member 82 is detachably joined to the upper surface of the central portion 76 around the opening.
【００１７】上述したように構成された容器６４の口頸
部６６に容器蓋２を装着する際には、容器６４の口頸部
６６に容器蓋２を被嵌して下方に押圧すると、容器蓋２
のスカート壁６の内面に形成されている係合手段４４は
それ自体の弾性変形或いはスカート壁６の弾性変形によ
って係止あご部７２を通過し、次いで弾性的に復元して
係止あご部７２に係止乃至係合せしめられる。一方、容
器蓋２の環状内側シール片６０は容器６４の口頸部６６
における中栓部７０の環状鉛直部７８の内周面に密接せ
しめられて半径方向内方に撓まされる。また、容器蓋２
の環状外側シール片５２の内周面に形成されている係止
手段５４はそれ自体の弾性変形或いは環状外側シール片
５２の弾性変形によって容器６４の口頸部６６における
中栓部７０の被巻き締めカール８０の外周面を通過す
る。しかる後においては、係止手段５４は弾性的に復元
して容器６４の口頸部６６における自由端に係止せしめ
られ、係止手段５４が形成されている位置よりも上方の
環状外側シール片５２が容器６４の口頸部６６における
中栓部７０の被巻き締めカール８０の外周面に密接せし
められる。そしてまた、環状外側シール片５２と環状内
側シール片６０との間に配置せしめられている環状シー
ル突条６２は、容器６４の口頸部６６における中栓部７
０の環状頂面に当接せしめられて幾分圧縮される。かく
して容器６４の口頸部６６に容器蓋２が装着され、容器
６４の口頸部６６が密封される。When the container lid 2 is attached to the mouth / neck portion 66 of the container 64 configured as described above, when the container lid 2 is fitted on the mouth / neck portion 66 of the container 64 and pressed downward, the container Lid 2
The engaging means 44 formed on the inner surface of the skirt wall 6 passes through the locking jaw 72 due to its own elastic deformation or elastic deformation of the skirt wall 6 and then elastically restores to the locking jaw 72. Is locked or engaged with. On the other hand, the annular inner seal piece 60 of the container lid 2 is the mouth / neck portion 66 of the container 64.
Is closely contacted with the inner peripheral surface of the annular vertical portion 78 of the inner plug portion 70 and is bent inward in the radial direction. Also, the container lid 2
The locking means 54 formed on the inner peripheral surface of the annular outer seal piece 52 is elastically deformed by itself or the annular outer seal piece 52 is elastically deformed, so that the inner plug portion 70 of the container 64 is wound around the neck portion 66. The tightening curl 80 passes through the outer peripheral surface. After that, the locking means 54 elastically restores to be locked to the free end of the mouth neck portion 66 of the container 64, and the annular outer seal piece above the position where the locking means 54 is formed. 52 is brought into close contact with the outer peripheral surface of the curl 80 to be wound around the inner plug portion 70 in the mouth / neck portion 66 of the container 64. Further, the annular seal ridge 62 disposed between the annular outer seal piece 52 and the annular inner seal piece 60 has the inner plug portion 7 in the mouth neck portion 66 of the container 64.
It is abutted against the annular top surface of 0 and is compressed somewhat. Thus, the container lid 2 is attached to the mouth / neck portion 66 of the container 64, and the mouth / neck portion 66 of the container 64 is sealed.
【００１８】容器蓋２で口頸部６６を密封された容器６
４内の内容物を消費する際には、最初に、把持片２４の
延出部２８を外方に強制して接続片３０を破断せしめ
る。次いで、延出部２８を把持して所要方向に引っ張
り、第一の周方向破断手段１２における上側薄肉破断ラ
イン２０及び下側薄肉破断ライン２２を破断することに
よって第一の周方向破断手段１２における把持片２４及
びストリップ１８を容器蓋２から切り取る。しかる後に
おいて、容器蓋２の旋回回動部３４に形成されている鍔
４２に指を掛けて上方及び薄肉ヒンジ手段８に向かう方
向に強制すると、容器蓋２における係止突条５６の、口
頸部６６への係止が解除されながら第二の周方向破断手
段１４の破断が進行する。これに伴って、旋回回動部３
４は薄肉ヒンジ手段８を中心として旋回回動せしめら
れ、容器６４の口頸部６６が露呈せしめられる。旋回回
動部３４が所定角度α旋回回動せしめられると、薄肉ヒ
ンジ手段８の上方に配設されている支持凹部４０は、そ
の上端が薄肉ヒンジ手段８の下方から上方に延びる支持
突出片３８の先端部を弾性的に乗り越えて、図８及び図
９に図示する如く支持突出片３８の先端部を受け入れ
る。かくして旋回回動部３４は所定角度α旋回回動せし
めた状態に充分確実に保持される。かかる所定角度αは
９５乃至１２０度であるのが好適である。しかる後にお
いて、容器６４の口頸部６６における中栓部７０からシ
ール部材８２を剥離すると、容器６４の中栓部７０に形
成された開口（図示しない）が露呈せしめられ、かかる
開口を通して容器６４内の内容物を消費することができ
る。旋回回動部３４を所定角度α旋回せしめた状態から
閉方向に旋回して容器６４の口頸部６６を閉じる際に
は、旋回回動部３４に指を掛けて閉方向に強制すると、
旋回回動部３４は薄肉ヒンジ手段８を中心として旋回回
動せしめられ、支持凹部４０は、その上端が薄肉ヒンジ
手段８の下方から上方に延びる支持突出片３８の先端部
を弾性的に乗り越えて、支持突出片３８の先端部を解放
する。旋回回動部３４が薄肉ヒンジ手段８を中心として
更に閉方向に旋回回動せしめると、容器蓋２の環状外側
シール片５２の内周面に形成されている係止手段５４は
それ自体の弾性変形或いは環状外側シール片５２の弾性
変形によって容器６４の口頸部６６における中栓部７０
の被巻き締めカール８０の外周面を通過する。しかる後
においては、係止手段５４は弾性的に復元して容器６４
の口頸部６６における自由端に係止せしめられ、係止手
段５４が形成されている位置よりも上方の環状外側シー
ル片５２が容器６４の口頸部６６における中栓部７０の
被巻き締めカール８０の外周面に密接せしめられる。ま
た、容器蓋２の環状内側シール片６０は容器６４の口頸
部６６における中栓部７０の環状鉛直部７８の内周面に
密接せしめられて半径方向内方に撓まされる。そしてま
た、環状外側シール片５２と環状内側シール片６０との
間に配置せしめられている環状シール突条６２は、容器
６４の口頸部６６における中栓部７０の環状頂面に当接
せしめられて幾分圧縮される。かくして容器蓋２によっ
て容器６４の口頸部６６が再び密封される。A container 6 whose mouth / neck portion 66 is sealed by a container lid 2.
When consuming the contents in 4, the extension 28 of the gripping piece 24 is first forced outward to break the connecting piece 30. Then, the extended portion 28 is gripped and pulled in a required direction, and the upper thin-wall breaking line 20 and the lower thin-wall breaking line 22 in the first circumferential breaking means 12 are broken, whereby the first circumferential breaking means 12 is broken. The gripping piece 24 and the strip 18 are cut off from the container lid 2. After that, when a finger is put on the collar 42 formed on the turning / rotating portion 34 of the container lid 2 and forced in the upward direction and toward the thin hinge means 8, the mouth of the locking projection 56 of the container lid 2 is closed. The second circumferential breaking means 14 is broken while the locking of the neck portion 66 is released. Along with this, the turning and rotating unit 3
4 is swiveled around the thin hinge means 8 to expose the mouth / neck portion 66 of the container 64. When the swiveling / rotating portion 34 is swung by a predetermined angle α, the supporting recess 40 disposed above the thin hinge means 8 has a support projection 38 whose upper end extends upward from below the thin hinge means 8. Of the support projection 38 is elastically ridged over the tip end of the support projection piece 38 as shown in FIGS. Thus, the turning / rotating portion 34 is sufficiently and reliably held in the state of being turned by the predetermined angle α. The predetermined angle α is preferably 95 to 120 degrees. Thereafter, when the seal member 82 is peeled off from the inner plug portion 70 of the mouth / neck portion 66 of the container 64, the opening (not shown) formed in the inner plug portion 70 of the container 64 is exposed, and the container 64 is passed through the opening. The contents inside can be consumed. When the swivel rotation unit 34 is swung in the closing direction from the state in which the swivel rotation unit 34 is swung by a predetermined angle α and the mouth / neck portion 66 of the container 64 is closed, a finger is put on the swivel rotation unit 34 to force it in the closing direction.
The swivel-rotating portion 34 is swung about the thin-walled hinge means 8 as a center, and the upper end of the support recess 40 elastically surmounts the tip of the support protrusion 38 extending upward from below the thin-walled hinge means 8. , The tip of the support protrusion 38 is released. When the swiveling / rotating portion 34 swivels and swivels further in the closing direction around the thin hinge means 8, the locking means 54 formed on the inner peripheral surface of the annular outer seal piece 52 of the container lid 2 has its own elasticity. Due to the deformation or the elastic deformation of the annular outer seal piece 52, the inner plug portion 70 in the mouth / neck portion 66 of the container 64 is formed.
The wound curl 80 passes through the outer peripheral surface. After that, the locking means 54 elastically restores to the container 64.
The annular outer seal piece 52, which is locked to the free end of the mouth / neck portion 66 of the container 64 and is located above the position where the locking means 54 is formed, is wound around the inner plug portion 70 of the mouth / neck portion 66 of the container 64. It is closely attached to the outer peripheral surface of the curl 80. Further, the annular inner seal piece 60 of the container lid 2 is brought into close contact with the inner peripheral surface of the annular vertical portion 78 of the inner plug portion 70 of the mouth / neck portion 66 of the container 64 and is bent inward in the radial direction. Further, the annular seal projection 62 disposed between the annular outer seal piece 52 and the annular inner seal piece 60 is brought into contact with the annular top surface of the inner plug portion 70 of the mouth / neck portion 66 of the container 64. It is compressed to some extent. Thus, the container lid 2 reseals the mouth / neck portion 66 of the container 64.
【００１９】[0019]
【発明の効果】本発明おける合成樹脂製容器蓋によれ
ば、埃が堆積し得る空間を比較的少なくせしめることが
できる共に成形効率が制限されることを抑制することが
できる。そして更に第二の周方向破断手段の破断を充分
容易に開始することができる。According to the synthetic resin container lid of the present invention, the space where dust can be accumulated can be made relatively small, and the molding efficiency can be restrained from being restricted. Further, the breaking of the second circumferential breaking means can be started sufficiently easily.
【００２０】また、本発明における合成樹脂製容器蓋に
よれば、埃が堆積し得る空間を比較的少なくせしめるこ
とができる共に成形効率が制限されることを抑制するこ
とができる。そして更に旋回回動部を所定角度α旋回回
動せしめると、旋回回動部がかかる角度位置に充分確実
に保持されるにもかかわらず、旋回回動部を充分容易に
閉方向に旋回せしめることができる。Further, according to the synthetic resin container lid of the present invention, the space in which dust can be accumulated can be made relatively small and the molding efficiency can be restrained from being restricted. When the swivel rotary unit is swung by a predetermined angle α, the swivel rotary unit can be swung sufficiently easily in the closing direction even though the swivel rotary unit is held at the angular position sufficiently reliably. You can
【図１】本発明に従って構成された容器蓋の好適実施形
態を示す斜視図。FIG. 1 is a perspective view showing a preferred embodiment of a container lid constructed according to the present invention.
【図２】図１に示す容器蓋の側面図。FIG. 2 is a side view of the container lid shown in FIG.
【図３】図１に示す容器蓋の正面図。3 is a front view of the container lid shown in FIG.
【図４】図１に示す容器蓋の上面図。FIG. 4 is a top view of the container lid shown in FIG.
【図５】図１に示す容器蓋を容器の口頸部に装着した状
態を図４の線Ａ−Ａにおける部位にて示した部分断面
図。5 is a partial cross-sectional view showing a state in which the container lid shown in FIG. 1 is attached to the mouth-neck portion of the container, taken along the line AA in FIG.
【図６】図１に示す容器蓋を容器の口頸部に装着した状
態を図４の線B−Bにおける部位にて示した部分断面図。6 is a partial cross-sectional view showing a state in which the container lid shown in FIG. 1 is attached to the mouth-neck portion of the container, taken along a line BB in FIG.
【図７】図１に示す容器蓋を容器の口頸部に装着した状
態を図４の線C−Cにおける部位にて示した部分断面図。FIG. 7 is a partial cross-sectional view showing a state in which the container lid shown in FIG. 1 is attached to the mouth-neck portion of the container, taken along the line C-C in FIG.
【図８】図１の容器蓋の旋回回動部を所定角度α旋回回
動せしめ、旋回回動部における支持凹部が支持突出片を
受け入れた状態を示す図。FIG. 8 is a view showing a state in which the swivel rotating portion of the container lid of FIG. 1 is swung by a predetermined angle α, and the supporting concave portion of the swivel rotating portion receives the supporting projection piece.
【図９】図８のD部を示す拡大図。FIG. 9 is an enlarged view showing a portion D of FIG.
２：容器蓋 ４：天面壁 ６：スカート壁 ８：薄肉ヒンジ手段 １０：開口 １２：第一の周方向破断手段 １４：第二の周方向破断手段 １６：スリット １８：ストリップ ２０：上側薄肉破断ライン ２２：下側薄肉破断ライン ２４：把持片 ３２：薄肉破断ライン ３４：旋回回動部 ３８：支持突出片 ４０：支持凹部 ５２：環状外側シール片 ５４：係止手段 ５６：係止突条 ５８：両破断開始角度領域 ６０：環状内側シール片 ６２：環状シール突条 ６４：容器 ６６：口頸部 2: Container lid 4: Top wall 6: Skirt wall 8: Thin-walled hinge means 10: Open 12: First circumferential breaking means 14: Second circumferential breaking means 16: Slit 18: Strip 20: Upper thin wall break line 22: Lower thin line break line 24: gripping piece 32: Thin wall break line 34: Revolving / rotating part 38: Support protruding piece 40: Support recess 52: Annular outer seal piece 54: Locking means 56: Locking ridge 58: Both fracture start angle regions 60: Ring inner seal piece 62: Ring seal protrusion 64: container 66: Mouth and neck
───────────────────────────────────────────────────── フロントページの続き (72)発明者 辻口 洋一 神奈川県平塚市長瀞２番12号 日本クラウ ンコルク株式会社平塚工場内 (72)発明者 家永 哲郎 神奈川県平塚市長瀞２番12号 日本クラウ ンコルク株式会社平塚工場内 Ｆターム(参考） 3E084 AA02 AA12 AA22 AA23 AB07 BA03 CA01 CB02 CC01 CC02 CC04 CC05 DA01 DB02 DB09 DB13 DC01 DC02 DC04 DC05 EA03 EB02 EC01 EC02 FA03 FA09 FC07 FD08 GA06 GB06 GB08 GB17 HA03 HB02 HC03 HD01 HD03 HD04 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yoichi Tsujiguchi 2-12 Mayoroto, Hiratsuka City, Kanagawa Prefecture Japan Crow Ncork Co., Ltd. Hiratsuka factory (72) Inventor Tetsuro Ienaga 2-12 Mayoroto, Hiratsuka City, Kanagawa Prefecture Japan Crow Ncork Co., Ltd. Hiratsuka factory F-term (reference) 3E084 AA02 AA12 AA22 AA23 AB07 BA03 CA01 CB02 CC01 CC02 CC04 CC05 DA01 DB02 DB09 DB13 DC01 DC02 DC04 DC05 EA03 EB02 EC01 EC02 FA03 FA09 FC07 FD08 GA06 GB06 GB08 GB17 HA03 HB02 HC03 HD01 HD03 HD04
Claims (10)
る円筒形スカート壁とを具備し、 該スカート壁には周方向所定領域に配置された薄肉ヒン
ジ手段、該薄肉ヒンジ手段の周方向両側に配置された開
口、該薄肉ヒンジ手段の直径方向反対側に配置され１７
０乃至２１０度の角度範囲に渡って延在する第一の周方
向破断手段、及び該第一の周方向破断手段の周方向両側
から該開口の各々まで延在する第二の周方向破断手段が
配設されており、 該第一の周方向破断手段は、周方向両端に位置し軸線方
向に延びるスリット、軸線方向に間隔をおいて該スリッ
トの一方から該スリットの他方まで周方向に延び且つ両
者間に切り取りストリップを規定する上側薄肉破断ライ
ン及び下側薄肉破断ライン、該スリットの一方に隣接し
て該切り取りストリップの外面に付設された把持片から
構成されており、 該第一の周方向破断手段における該上側薄肉破断ライン
及び該下側薄肉破断ラインを破断し、次いで該第二の周
方向破断ラインを破断せしめると、該第一の周方向破断
手段及び該第二の周方向破断手段よりも上方に存在する
旋回回動部が該薄肉ヒンジ手段を中心として上方へ旋回
回動可能になる、 合成樹脂製容器蓋において、 該第二の周方向破断手段は、該第一の周方向破断手段の
該スリットの各々から該開口の各々まで周方向に延びる
薄肉破断ラインから構成されており、 該旋回回動部には容器の口頸部に係止せしめられる係止
手段が形成されており、該係止手段は周方向に間隔をお
いて周方向に延びる複数個の係止突条から構成されてお
り、 該第二の周方向破断手段の、該第一の周方向破断手段に
続く両破断開始端部が位置する両破断開始角度領域にお
いては該係止突条が存在しない、 ことを特徴とする合成樹脂製容器蓋。1. A thin top wall having a circular top wall and a cylindrical skirt wall hanging down from a peripheral edge of the top wall, wherein the skirt wall has thin-walled hinge means arranged in a predetermined circumferential region, and the thin-walled hinge means has a circumferential direction. Openings located on both sides, located 17 diametrically opposite the thin hinge means
First circumferential breaking means extending over an angular range of 0 to 210 degrees, and second circumferential breaking means extending from both circumferential sides of the first circumferential breaking means to each of the openings. The first circumferential breaking means are slits located at both ends in the circumferential direction and extending in the axial direction, and extending in the circumferential direction from one of the slits to the other of the slits at intervals in the axial direction. And an upper thin line break line and a lower thin line break line defining a cutting strip between the two, and a gripping piece attached to the outer surface of the cutting strip adjacent to one of the slits, the first circumference When the upper thin line breaking line and the lower thin line breaking line in the direction breaking unit are broken and then the second circumferential breaking line is broken, the first circumferential breaking unit and the second circumferential breaking line Means In the synthetic resin container lid, the second circumferential breaking means includes the first circumferential breaking means. Each of the slits of the means is composed of a thin breaking line extending in the circumferential direction from each of the openings, and the swiveling and rotating portion is formed with locking means for locking the mouth and neck of the container. The locking means is composed of a plurality of locking projections extending in the circumferential direction at intervals in the circumferential direction, and is continuous with the first circumferential breaking means of the second circumferential breaking means. A container lid made of synthetic resin, characterized in that the locking projections do not exist in both break start angle regions where both break start ends are located.
角度領域の各々の周方向角度は５乃至２０度である、請
求項１記載の合成樹脂製容器蓋。2. The synthetic resin container lid according to claim 1, wherein the circumferential angle of each of the both fracture start angle regions of the second circumferential breaking means is 5 to 20 degrees.
の上端部外周面に密接せしめられる環状外側シール片が
配設されており、該係止手段は該環状外側シール片の内
周面に形成されている、請求項１又は２記載の合成樹脂
製容器蓋。3. An annular outer seal piece is provided which hangs down from the inner surface of the top wall and is brought into close contact with the outer peripheral surface of the upper end portion of the mouth and neck of the container, and the locking means is provided inside the annular outer seal piece. The synthetic resin container lid according to claim 1 or 2, which is formed on the peripheral surface.
の上端部内周面に密接せしめられる環状内側シール片、
及び該天面壁の内面に配置され容器の口頸部の頂面に密
接せしめられる環状シール突条が配設されている、請求
項３記載の合成樹脂製容器蓋。4. An annular inner seal piece that hangs down from the inner surface of the top wall and is brought into close contact with the inner peripheral surface of the upper end of the mouth and neck of the container,
4. The synthetic resin container lid according to claim 3, further comprising: an annular seal ridge disposed on the inner surface of the top wall and brought into close contact with the top surface of the mouth and neck of the container.
角度領域の少なくとも上流端部において該環状外側シー
ル片は局部的に内径を増大せしめることによって局部的
に厚さが低減せしめられている、請求項１から４までの
いずれかに記載の合成樹脂製容器蓋。5. The thickness of the annular outer seal piece is locally reduced by locally increasing the inner diameter at least at the upstream end of both the fracture initiation angle regions of the second circumferential breaking means. The synthetic resin container lid according to any one of claims 1 to 4.
ジ手段の下方から該薄肉ヒンジ手段に沿ってその半径方
向外側を上方に延びる支持突出片が配設されていると共
に、該薄肉ヒンジ手段の上方に配置され、該旋回回動部
が所定角度α旋回回動せしめられると該支持突出片の先
端部を受け入れる支持凹部が配設されている、請求項１
から５までのいずれかに記載の合成樹脂製容器蓋。6. A support projection piece is provided on the outer peripheral surface of the skirt wall and extends upward from below the thin-walled hinge means along the thin-walled hinge means and outward in the radial direction thereof. 2. A support concave portion is provided above the means, the support concave portion receiving the tip end portion of the support projecting piece when the rotary rotating portion is rotated by a predetermined angle α.
5. The synthetic resin container lid according to any one of 1 to 5.
る円筒形スカート壁とを具備し、 該スカート壁には周方向所定領域に配置された薄肉ヒン
ジ手段、該薄肉ヒンジ手段の周方向両側に配置された開
口、該薄肉ヒンジ手段の直径方向反対側に配置され１７
０乃至２１０度の角度範囲に渡って延在する第一の周方
向破断手段、及び該第一の周方向破断手段の周方向両側
から該開口の各々まで延在する第二の周方向破断手段が
配設されており、 該第一の周方向破断手段は、周方向両端に位置し軸線方
向に延びるスリット、軸線方向に間隔をおいて該スリッ
トの一方から該スリットの他方まで周方向に延び且つ両
者間に切り取りストリップを規定する上側薄肉破断ライ
ン及び下側薄肉破断ライン、該スリットの一方に隣接し
て該切り取りストリップの外面に付設された把持片から
構成されており、 該第一の周方向破断手段における該上側薄肉破断ライン
及び該下側薄肉破断ラインを破断し、次いで該第二の周
方向破断ラインを破断せしめると、該第一の周方向破断
手段及び該第二の周方向破断手段よりも上方に存在する
旋回回動部が該薄肉ヒンジ手段を中心として上方へ旋回
回動可能になる、 合成樹脂製容器蓋において、 該第二の周方向破断手段は、該第一の周方向破断手段の
該スリットの各々から該開口の各々まで周方向に延びる
薄肉破断ラインから構成されており、 該天面壁の内面から垂下し、容器の口頸部の上端部外周
面に密接せしめられる環状外側シール片が配設されてお
り、該第二の周方向破断手段の、該第一の周方向破断手
段に続く両破断開始端部が位置する両破断開始角度領域
の少なくとも上流端部においては該環状外側シール片は
局部的に内径を増大せしめることによって局部的に厚さ
が低減せしめられている、 ことを特徴とする合成樹脂製容器蓋。7. A thin top wall having a circular top wall and a cylindrical skirt wall hanging down from a peripheral edge of the top wall, wherein the skirt wall has thin-wall hinge means arranged in a predetermined circumferential direction, and the thin-wall hinge means extends in the circumferential direction. Openings located on both sides, located 17 diametrically opposite the thin hinge means
First circumferential breaking means extending over an angular range of 0 to 210 degrees, and second circumferential breaking means extending from both circumferential sides of the first circumferential breaking means to each of the openings. The first circumferential breaking means are slits located at both ends in the circumferential direction and extending in the axial direction, and extending in the circumferential direction from one of the slits to the other of the slits at intervals in the axial direction. And an upper thin line break line and a lower thin line break line defining a cutting strip between the two, and a gripping piece attached to the outer surface of the cutting strip adjacent to one of the slits, the first circumference When the upper thin line breaking line and the lower thin line breaking line in the direction breaking unit are broken and then the second circumferential breaking line is broken, the first circumferential breaking unit and the second circumferential breaking line Means In the synthetic resin container lid, the second circumferential breaking means includes the first circumferential breaking means. An annular outer side, which is composed of a thin-walled breaking line extending in the circumferential direction from each of the slits of the means to each of the openings, is hung from the inner surface of the ceiling wall, and is brought into close contact with the outer peripheral surface of the upper end portion of the mouth and neck of the container. A seal piece is provided, and at least at an upstream end portion of both break start angle regions where both break start end portions of the second circumferential break means, which are subsequent to the first circumferential break means, are located. The synthetic resin container lid is characterized in that the thickness of the annular outer seal piece is locally reduced by locally increasing the inner diameter.
角度領域の少なくとも上流端部と共に該第一の周方向破
断手段の該スリットが存在する角度領域においても該環
状外側シール片は局部的に内径を増大せしめることによ
って局部的に厚さが低減せしめられている、請求項５又
は７記載の合成樹脂製容器蓋。8. The annular outer seal piece is also formed in the angular region in which the slit of the first circumferential breaking means exists together with at least the upstream end portion of the both breaking starting angular regions of the second circumferential breaking means. The synthetic resin container lid according to claim 5 or 7, wherein the thickness is locally reduced by locally increasing the inner diameter.
る円筒形スカート壁とを具備し、 該スカート壁には周方向所定領域に配置された薄肉ヒン
ジ手段、該薄肉ヒンジ手段の周方向両側に配置された開
口、該薄肉ヒンジ手段の直径方向反対側に配置され１７
０乃至２１０度の角度範囲に渡って延在する第一の周方
向破断手段、及び該第一の周方向破断手段の周方向両側
から該開口の各々まで延在する第二の周方向破断手段が
配設されており、 該第一の周方向破断手段は、周方向両端に位置し軸線方
向に延びるスリット、軸線方向に間隔をおいて該スリッ
トの一方から該スリットの他方まで周方向に延び且つ両
者間に切り取りストリップを規定する上側薄肉破断ライ
ン及び下側薄肉破断ライン、該スリットの一方に隣接し
て該切り取りストリップの外面に付設された把持片から
構成されており、 該第一の周方向破断手段における該上側薄肉破断ライン
及び該下側薄肉破断ラインを破断し、次いで該第二の周
方向破断ラインを破断せしめると、該第一の周方向破断
手段及び該第二の周方向破断手段よりも上方に存在する
旋回回動部が該薄肉ヒンジ手段を中心として上方へ旋回
回動可能になる、 合成樹脂製容器蓋において、 該スカート壁の外周面には、該薄肉ヒンジ手段の下方か
ら該薄肉ヒンジ手段に沿ってその半径方向外側を上方に
延びる支持突出片が配設されていると共に、該薄肉ヒン
ジ手段の上方に配設され、該旋回回動部が所定角度α旋
回回動せしめられると該支持突出片の先端部を受け入れ
る支持凹部が配設されている、 ことを特徴とする合成樹脂製容器蓋。9. A thin top hinge wall provided with a circular top wall and a cylindrical skirt wall hanging down from a peripheral edge of the top wall, wherein the thin skirt hinge means is arranged in a predetermined area in the circumferential direction, and a circumferential direction of the thin hinge means. Openings located on both sides, located 17 diametrically opposite the thin hinge means
First circumferential breaking means extending over an angular range of 0 to 210 degrees, and second circumferential breaking means extending from both circumferential sides of the first circumferential breaking means to each of the openings. The first circumferential breaking means are slits located at both ends in the circumferential direction and extending in the axial direction, and extending in the circumferential direction from one of the slits to the other of the slits at intervals in the axial direction. And an upper thin line break line and a lower thin line break line defining a cutting strip between the two, and a gripping piece attached to the outer surface of the cutting strip adjacent to one of the slits, the first circumference When the upper thin line breaking line and the lower thin line breaking line in the direction breaking unit are broken and then the second circumferential breaking line is broken, the first circumferential breaking unit and the second circumferential breaking line Means In the synthetic resin container lid, the outer peripheral surface of the skirt wall can be rotated from below the thin-walled hinge means to above the thin-walled hinge means. A supporting projection piece extending upward along the radial direction along the thin hinge means is arranged, and is arranged above the thin hinge means, and the turning rotary portion is turned by a predetermined angle α. And a supporting recess for receiving the tip of the supporting protrusion, the container cover made of synthetic resin.
る、請求項６又は９記載の合成樹脂製容器蓋。10. The synthetic resin container lid according to claim 6, wherein the predetermined angle α is 95 to 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002154593A JP4253468B2 (en) | 2002-05-28 | 2002-05-28 | Plastic container lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002154593A JP4253468B2 (en) | 2002-05-28 | 2002-05-28 | Plastic container lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003341705A true JP2003341705A (en) | 2003-12-03 |
| JP4253468B2 JP4253468B2 (en) | 2009-04-15 |
Family
ID=29771363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002154593A Expired - Fee Related JP4253468B2 (en) | 2002-05-28 | 2002-05-28 | Plastic container lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4253468B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019189351A1 (en) * | 2018-03-29 | 2019-10-03 | 大王製紙株式会社 | Container for housing household tissue paper |
-
2002
- 2002-05-28 JP JP2002154593A patent/JP4253468B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019189351A1 (en) * | 2018-03-29 | 2019-10-03 | 大王製紙株式会社 | Container for housing household tissue paper |
| JP2019172331A (en) * | 2018-03-29 | 2019-10-10 | 大王製紙株式会社 | Tissue paper storage container for home use |
| CN111867944A (en) * | 2018-03-29 | 2020-10-30 | 大王制纸株式会社 | Container for containing household tissue paper |
| CN111867944B (en) * | 2018-03-29 | 2022-05-24 | 大王制纸株式会社 | Container for receiving household tissue paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4253468B2 (en) | 2009-04-15 |
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