JP2020059538A - cap - Google Patents

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JP2020059538A
JP2020059538A JP2018193004A JP2018193004A JP2020059538A JP 2020059538 A JP2020059538 A JP 2020059538A JP 2018193004 A JP2018193004 A JP 2018193004A JP 2018193004 A JP2018193004 A JP 2018193004A JP 2020059538 A JP2020059538 A JP 2020059538A
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upper lid
fitted
overcap
fitting
fitting portion
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JP7158013B2 (en
JP2020059538A5 (en
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武尚 橋本
Takenao Hashimoto
武尚 橋本
達大 前田
Tatsuhiro Maeda
達大 前田
雄嗣 中川
Taketsugu Nakagawa
雄嗣 中川
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Mikasa Sangyo Co Ltd
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Mikasa Sangyo Co Ltd
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Abstract

To provide a cap in which the rotational force required at the time of opening can be relatively small and an upper lid does not fall off from an over-cap even when receiving a small impact.SOLUTION: An inner plug 4, an upper lid 5, and an over-cap 6 are provided, and the upper lid 5 and the over-cap 6 are provided with a fitted part (outer peripheral projecting/recessing line) 45 and a fitting part 54 which can be fitted to each other. The fitted part 45 is formed on an outer periphery of the upper lid 5 in an embossed shape at a predetermined circumferential angler. The fitting part 54 includes a plurality of guide fitting parts 54A which are provided adjacent to each other in a circumferential direction at a separation angle that is an integral multiple of the angle at which the fitted part 45 is provided, and a deformable fitting part 54B which is fitted while being elastically deformed in the circumferential direction with respect to the fitted part 45 of the guide fitting part 54A provided at the separation angle different from an integer multiple of the angle at which the fitted part 45 is provided.SELECTED DRAWING: Figure 15

Description

本発明は容器の口部に取り付けられるキャップに関する。   The present invention relates to a cap attached to the mouth of a container.

従来、この種のキャップとして、容器の口部に取り付けられる中栓と、回転することにより中栓に着脱自在な上蓋とを備え、中栓に、周囲が破断可能な薄肉ラインの弱化部で囲まれた除去領域を有しており、上蓋を中栓に装着して回転することにより、弱化部を破断させて、除去領域を上蓋に嵌り込ませ、中栓に注出口を形成するものがある。このキャップによれば、未使用時には、容器の口部に取り付けられる中栓が密閉状態を維持できるので衛生的である。   Conventionally, as a cap of this type, an inner stopper attached to the mouth of a container and an upper lid that can be attached to and detached from the inner stopper by rotation are provided, and the inner stopper is surrounded by a weakened portion of a thin line that can be broken around. Some of them have a removed area that is removed, and when the upper lid is attached to the inner stopper and rotated, the weakened portion is broken, the removed area is fitted into the upper lid, and a spout is formed in the inner stopper. . This cap is hygienic because the inner plug attached to the mouth of the container can maintain a closed state when not in use.

しかし、上蓋と中栓とが、平面視した場合の大きさがあまり変わらず(例えば両方とも略円形(上蓋は略円筒形状)であり、その直径があまり変わらず)、除去領域を切断する切断寸法が比較的大きい場合には、上蓋を回転させて中栓の除去領域を離脱させる際に、比較的大きな力(大きなトルク)を上蓋に作用させなければならない。   However, the size of the upper lid and the inner stopper when viewed in plan does not change much (for example, both are substantially circular (the upper lid has a substantially cylindrical shape and their diameters do not change much), and the cutting is performed to cut the removal region. When the size is relatively large, a relatively large force (a large torque) must be applied to the upper lid when the upper lid is rotated to separate the removal area of the inner plug.

この切断する際の力を軽減する方法としては、例えば、特許文献1に開示されているように、上蓋より大きな直径のオーバーキャップを上蓋に嵌合させて被せることが考えられる。つまり、オーバーキャップと上蓋とに、互いに径方向に一体的に回転できるような嵌合部や被嵌合部を設け、開封時にオーバーキャップを回転して、内側の上蓋も一体的に回転させて、除去領域を切断するようにする。これにより、開封時におけるオーバーキャップを回転する力(トルク)を小さくて済ませることができ、作業性が良好となる。なお、オーバーキャップと上蓋とに設けられている嵌合部や被嵌合部は、平面視して周方向に対して所定の同じ角度毎に凹凸形状に形成されている。   As a method of reducing the force at the time of cutting, for example, as disclosed in Patent Document 1, it is considered that an overcap having a diameter larger than that of the upper lid is fitted and covered. That is, the overcap and the upper lid are provided with a fitting portion or a fitted portion that can be integrally rotated in the radial direction, and the overcap is rotated at the time of opening, so that the inner upper lid is also integrally rotated. , So that the removal area is cut. As a result, the force (torque) for rotating the overcap at the time of opening can be reduced, and the workability is improved. It should be noted that the fitting portion and the fitted portion provided on the overcap and the upper lid are formed in a concavo-convex shape at a predetermined same angle with respect to the circumferential direction in plan view.

特開2012−126402公報JP2012-126402A

しかしながら、上記特許文献1に開示されたようなオーバーキャップを上蓋に嵌合させて被せる構成において、オーバーキャップと上蓋との互いに径方向に係止する摩擦力によって、上蓋がオーバーキャップ内に保持されているものの、小さな衝撃などを受けた場合に、オーバーキャップから上蓋が下方に脱落してしまうおそれがある。   However, in the configuration in which the overcap is fitted and covered on the upper lid as disclosed in Patent Document 1, the upper lid is held in the overcap by the frictional force that locks the overcap and the upper lid in the radial direction. However, if a small impact is applied, the upper lid may fall off from the overcap.

本発明は上記課題を解決するもので、開封時に必要な回転力を比較的小さく済ませることができ、かつ、小さな衝撃などを受けた場合でもオーバーキャップから上蓋が脱落することを防止できるキャップを提供することを目的とするものである。   The present invention solves the above-described problems, and provides a cap that can relatively reduce the rotational force required when opening and that can prevent the upper lid from falling off from the overcap even when a small impact is applied. The purpose is to do.

上記課題を解決するために、本発明は、容器の口部に取り付けられる中栓と、回転することにより中栓に着脱自在な上蓋と、この上蓋に嵌合した状態で被せられて一体的に回転可能なオーバーキャップと、を備え、中栓は、中栓本体部と、弱化部を介して中栓本体部から離脱可能に設けられた離脱部とを有し、上蓋に、上蓋が回転された際に中栓の離脱部に係合して離脱部を中栓本体部から離脱させる回転係合部が設けられているキャップであって、上蓋とオーバーキャップとには、互いに嵌合可能な被嵌合部と嵌合部とが設けられ、前記被嵌合部は、上蓋の外周またはオーバーキャップの内周に、周方向に対して所定の角度毎に凹凸形状に形成され、前記嵌合部は、互いに隣り合う周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度で設けられている複数の案内嵌合部と、この案内用嵌合部に対する周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度とは異なる角度で設けられて前記被嵌合部に対して周方向に弾性変形しながら嵌合する変形嵌合部と、を有することを特徴とする。   MEANS TO SOLVE THE PROBLEM In order to solve the said subject, this invention is an inner stopper attached to the opening part of a container, the upper lid which can be attached or detached to an inner stopper by rotating, and is covered in the state fitted with this upper lid, and is integrated. The inner stopper has a rotatable overcap, and the inner stopper has an inner stopper body portion and a detaching portion detachably provided from the inner stopper body portion via a weakening portion, and the upper lid is rotated by the upper lid. The cap is provided with a rotary engaging portion that engages with the detaching portion of the inner plug when detaching and disengages the detaching portion from the inner plug main body, and the upper lid and the overcap can be fitted to each other. A fitted portion and a fitting portion are provided, and the fitted portion is formed on the outer circumference of the upper lid or the inner circumference of the overcap in a concavo-convex shape at a predetermined angle with respect to the circumferential direction. The angle of separation between adjacent portions in the circumferential direction is the angle at which the fitted portion is provided. A plurality of guide fitting portions provided at an integer multiple angle and a separation angle in the circumferential direction with respect to the guide fitting portion are different from an integer multiple angle of the fitted portion. A deformable fitting portion that is provided at an angle and that is fitted to the fitted portion while being elastically deformed in the circumferential direction.

上記構成によれば、被嵌合部に嵌合する嵌合部に、互いに隣り合う周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度で設けられている複数の案内嵌合部を設けただけでなく、この案内用嵌合部に対する周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度とは異なる角度で設けられて前記被嵌合部に対して周方向に弾性変形しながら嵌合する変形嵌合部を設けたので、上蓋にオーバーキャップを嵌合させて被せると、変形嵌合部が周方向に弾性変形しながら嵌合する。これにより、比較的小さな衝撃を受けた場合でも、オーバーキャップから上蓋が下方に脱落してしまうことを防止できて、オーバーキャップにより上蓋を脱落しない状態で保持できる。そして、この状態で、オーバーキャップを回転させて上蓋も一体回転させることで、中栓の弱化部を切断させて離脱部を離脱させることができて、中栓に注出口を形成できる。この際、オーバーキャップを回転させるので、弱化部の切断時に必要な回転力を比較的小さく済ませることができる。   According to the above-described configuration, the fitting portions to be fitted to the fitted portion are provided with mutually adjacent circumferential separation angles at an angle that is an integral multiple of the angle at which the fitted portion is provided. Not only the plurality of guide fitting portions are provided, but the separation angle in the circumferential direction with respect to the guide fitting portion is provided at an angle different from an integer multiple of the angle at which the fitted portion is provided. Since a deformable fitting portion is provided that elastically deforms in the circumferential direction with respect to the fitted portion, when the overcap is fitted on the upper lid and covered, the deformable fitting portion elastically deforms in the circumferential direction. While mating. Accordingly, even when a relatively small impact is applied, it is possible to prevent the upper lid from dropping downward from the overcap, and it is possible to hold the upper lid in a state where the upper lid does not drop by the overcap. Then, in this state, the overcap is rotated and the upper lid is also integrally rotated, so that the weakened portion of the inner stopper can be cut and the detached portion can be detached, so that the spout can be formed in the inner stopper. At this time, since the overcap is rotated, the rotational force required for cutting the weakened portion can be made relatively small.

また、本発明は、前記被嵌合部が上蓋に形成され、前記嵌合部はオーバーキャップに形成され、オーバーキャップの天面が上方に向くように配置した状態で、前記案内嵌合部の下端部が、前記変形嵌合部の下端部よりも下方の位置に形成されていると好適である。   In the present invention, the fitted portion is formed on an upper lid, the fitting portion is formed on an overcap, and the guide fitting portion is arranged so that a top surface of the overcap faces upward. It is preferable that the lower end portion is formed at a position lower than the lower end portion of the deformation fitting portion.

この構成によれば、オーバーキャップの天面部が上方に向くように配置した状態で、前記案内嵌合部の下端部が、前記変形嵌合部の下端部よりも下方の位置に形成されているので、上蓋に対してオーバーキャップを周方向に直交する方向に沿って打栓させるなどして組み付ける場合に、まず、オーバーキャップの案内嵌合部が上蓋の被嵌合部に嵌合し、この後に、オーバーキャップの変形嵌合部が上蓋の被嵌合部に嵌合する。すなわち、上蓋に対してオーバーキャップを打栓させるなどして組み付ける際には、第1段階では、互いに隣り合う案内嵌合部間の周方向の離間角度が、被嵌合部が設けられている角度の整数倍の角度で設けられている案内嵌合部だけが被嵌合部に嵌合するので、比較的小さな力で打栓できる。また、オーバーキャップの変形嵌合部は、案内用嵌合部に対する離間角度が、前記被嵌合部が設けられている角度の整数倍の角度とは異なる角度で設けられているが、この変形嵌合部が上蓋の被嵌合部に嵌合する際には、既に案内嵌合部が被嵌合部に嵌合してオーバーキャップと上蓋とが互いに周方向に移動できない状態に保持されている(位置決めされている)ので、打栓力の増加を最小限に抑えた状態でも、上蓋の被嵌合部に変形嵌合部を変形させながら嵌め込むことができて、打栓時に必要な力を低めに抑えることが可能となる。また、オーバーキャップの変形嵌合部は上蓋の被嵌合部に変形して比較的大きな力で噛み込んだ状態で嵌合しているので、オーバーキャップにより上蓋を脱落しない状態で良好に保持できる。   According to this structure, the lower end portion of the guide fitting portion is formed at a position lower than the lower end portion of the deformable fitting portion in a state where the top surface portion of the overcap faces upward. Therefore, when assembling the overcap onto the upper lid by tapping along the direction orthogonal to the circumferential direction, first, the guide fitting portion of the overcap is fitted to the fitted portion of the upper lid. After that, the deformable fitting portion of the overcap is fitted to the fitted portion of the upper lid. That is, when assembling the upper cap by plugging the overcap or the like, in the first stage, the fitted portion is provided at the circumferential separation angle between the guide fitting portions adjacent to each other. Since only the guide fitting portion provided at an angle which is an integral multiple of the angle fits into the fitted portion, the stopper can be tapped with a relatively small force. Further, the deformed fitting portion of the overcap is provided with a separation angle with respect to the guide fitting portion that is different from an angle that is an integral multiple of the angle at which the fitted portion is provided. When the fitting part is fitted to the fitted part of the upper lid, the guide fitting part is already fitted to the fitted part, and the overcap and the upper lid are already held in a state in which they cannot move in the circumferential direction. Since it is positioned (positioned), even if the increase in the tapping force is suppressed to a minimum, it can be fitted into the mating part of the upper lid while deforming the deformed mating part, which is necessary for capping. It is possible to keep the power low. In addition, the deformable fitting portion of the overcap is deformed into the fitted portion of the upper lid and is fitted while being bitten by a comparatively large force, so that the overcap can be favorably held without falling off the upper lid. .

また、前記嵌合部および前記被嵌合部が、上蓋およびオーバーキャップにおいて周方向に直交する直線方向に沿って延びる形状に形成され、前記変形嵌合部の先端部に、先端ほど周方向寸法が小さくなるように傾斜面が形成されていると好適である。この構成によれば、変形嵌合部が被嵌合部に嵌合し始める際に、前記変形嵌合部の先端部に形成されている傾斜面が被嵌合部に摺接しながら滑らかに嵌合でき、これによっても、オーバーキャップを上蓋に打栓させるなどして組み付ける場合に必要な力を低めに抑えることが可能となる。   Further, the fitting portion and the fitted portion are formed in a shape that extends along a straight line direction orthogonal to the circumferential direction in the upper lid and the overcap, and the distal end portion of the deformable fitting portion has a circumferential dimension toward the tip. It is preferable that the inclined surface is formed so that According to this configuration, when the deformable fitting portion starts to be fitted to the fitted portion, the inclined surface formed at the distal end portion of the deformable fitting portion is smoothly fitted while slidingly contacting the fitted portion. This also makes it possible to suppress the force required when assembling the overcap by tapping the upper cap.

また、オーバーキャップに、上蓋に被せる覆い部と、この覆い部から下方に延びて径方向に弾性変形して、上蓋を保持可能な保持用足部が設けられていると好適である。この構成によれば、オーバーキャップに上蓋に被せることで、保持用足部によっても上蓋を保持することができ、より確実にオーバーキャップによって上蓋を保持することができる。   Further, it is preferable that the overcap is provided with a cover portion to cover the upper lid and a holding foot portion that extends downward from the cover portion and elastically deforms in the radial direction to hold the upper lid. According to this configuration, by covering the upper lid with the overcap, the upper lid can be held by the holding foot portion, and the upper lid can be more reliably held by the overcap.

また、本発明は、前記キャップの、上蓋に対してオーバーキャップを組み付けるキャップの組付け方法であって、オーバーキャップを上蓋に対して周方向に直交する軸心方向に沿って打栓させることにより組み付け、打栓時に、案内嵌合部が被嵌合部に嵌合した後に、変形嵌合部が被嵌合部に嵌合するように構成されていることを特徴とする。この方法により、変形嵌合部が被嵌合部に嵌合する際には、すでに案内嵌合部が被嵌合部に嵌合しているので、打栓時に必要な力を低めに抑えることが可能となる。   Further, the present invention is a method of assembling the cap, wherein the overcap is assembled to the upper lid, wherein the overcap is capped along the axial direction orthogonal to the circumferential direction with respect to the upper lid. It is characterized in that the guide fitting portion is fitted to the fitted portion and then the deformable fitting portion is fitted to the fitted portion at the time of assembling and tapping. With this method, when the deformable fitting part is fitted to the fitted part, the guide fitting part is already fitted to the fitted part, so the force required for tapping should be kept low. Is possible.

本発明のキャップによれば、被嵌合部に嵌合する嵌合部に、互いに隣り合う周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度で設けられている複数の案内嵌合部を設けただけでなく、この案内用嵌合部に対する周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度とは異なる角度で設けられて前記被嵌合部に対して周方向に弾性変形しながら嵌合する変形嵌合部を設けることにより、比較的小さな衝撃を受けた場合でも、オーバーキャップから上蓋が下方に脱落してしまうことを防止できて、オーバーキャップにより上蓋を脱落しない状態で保持でき、ひいてはキャップの信頼性を向上させることができる。   ADVANTAGE OF THE INVENTION According to the cap of this invention, in the fitting part fitted to the fitted part, the mutually adjacent circumferential separation angle is provided at an integer multiple of the angle at which the fitted part is provided. In addition to providing a plurality of guide fitting portions, the separation angle in the circumferential direction with respect to the guide fitting portion is different from an angle that is an integral multiple of the angle at which the fitted portion is provided. By providing the deformable fitting portion that is provided and fits while being elastically deformed in the circumferential direction with respect to the fitted portion, even when a relatively small impact is received, the upper lid is dropped downward from the overcap. The overcap can be prevented, the upper lid can be held without falling off by the overcap, and the reliability of the cap can be improved.

また、前記被嵌合部を上蓋に形成し、前記嵌合部をオーバーキャップに形成し、オーバーキャップの天面部が上方に向くように配置した状態で、前記案内嵌合部の下端部が、前記変形嵌合部の下端部よりも下方の位置に形成されていることにより、上蓋に対してオーバーキャップを打栓させて組み付ける場合に、打栓時に必要な力を低めに抑えることが可能となる。   In the state where the fitted portion is formed on the upper lid, the fitting portion is formed on the overcap, and the top surface portion of the overcap is arranged to face upward, the lower end portion of the guide fitting portion is Since it is formed at a position lower than the lower end of the deformable fitting portion, when assembling the overcap by capping it with respect to the upper lid, it is possible to suppress the force required at the time of capping to a low level. Become.

また、前記嵌合部および前記被嵌合部を、上蓋およびオーバーキャップにおいて周方向に直交する直線方向に沿って延びる形状に形成し、前記変形嵌合部の先端部に、先端ほど周方向寸法が小さくなるように傾斜面を形成することによっても、オーバーキャップを上蓋に打栓させるなどして組み付ける場合に必要な力を低めに抑えることが可能となる。   In addition, the fitting portion and the fitted portion are formed in a shape that extends along a straight line direction orthogonal to the circumferential direction in the upper lid and the overcap, and the distal end portion of the deformable fitting portion has a circumferential dimension closer to the tip. Even if the inclined surface is formed so as to be smaller, it is possible to suppress the force required for assembling the overcap by stoppering it on the upper lid.

また、前記キャップの、上蓋に対してオーバーキャップを組み付けるキャップの組付け方法として、打栓時に、案内嵌合部が被嵌合部に嵌合した後に、変形嵌合部が被嵌合部に嵌合するよう構成することにより、変形嵌合部が被嵌合部に嵌合する際には、すでに案内嵌合部が被嵌合部に嵌合しているので、打栓時に必要な力を低めに抑えることが可能となる。   As a method for assembling the overcap to the upper lid of the cap, the guide fitting portion is fitted to the fitted portion and the deformable fitting portion is fitted to the fitted portion at the time of tapping. When the deformable fitting part is fitted to the fitted part, the guide fitting part is already fitted to the fitted part. It is possible to keep the value low.

本発明の実施の形態に係るキャップの部分切欠正面図である。It is a partially cutaway front view of the cap according to the embodiment of the present invention. 同キャップの中栓の平面図である。It is a top view of the inner plug of the same cap. 同キャップの中栓の部分切欠正面図である。It is a partially cutaway front view of the inner plug of the cap. 同キャップの上蓋の平面図である。It is a top view of the upper lid of the same cap. 同キャップの上蓋の部分切欠正面図である。It is a partially cutaway front view of the upper lid of the cap. 同キャップの上蓋の底面図である。It is a bottom view of the upper lid of the same cap. 同キャップにおけるオーバーキャップの部分切欠正面図である。It is a partial notch front view of the overcap in the same cap. 同キャップのオーバーキャップの底面図である。It is a bottom view of the overcap of the same cap. 同オーバーキャップの案内用嵌合部およびその近傍箇所の縦断面図である。It is a longitudinal cross-sectional view of the guide fitting part of the same overcap and the vicinity thereof. 同オーバーキャップの案内用嵌合部をオーバーキャップの軸心位置より矢視した矢視図である。It is the arrow view which looked at the guide fitting part of the same overcap from the axial center position of the overcap. 同オーバーキャップの変形嵌合部およびその近傍箇所の縦断面図である。It is a longitudinal cross-sectional view of the deformation fitting part of the same overcap and its vicinity. 同オーバーキャップの変形嵌合部をオーバーキャップの軸心位置より矢視した矢視図である。It is the arrow view which looked at the deformation | transformation fitting part of the same overcap from the axial center position of the overcap. 同キャップにおける中栓に上蓋を被せる状態を示す部分切欠正面図である。FIG. 4 is a partially cutaway front view showing a state in which an inner lid of the cap is covered with an upper lid. 同キャップにおける上蓋にオーバーキャップを被せる状態を示す部分切欠正面図である。It is a partially cutaway front view showing a state in which an upper cap of the same cap is covered with an overcap. 同キャップにおける上蓋にオーバーキャップを被せる状態を示す部分切欠斜視図である。It is a partial cutaway perspective view showing the state where an upper cap in the cap is covered with an overcap. 同キャップにおける上蓋にオーバーキャップを被せる状態を示す部分切欠斜視図であり、案内用嵌合部が外周凹凸条部に嵌合し始めている状態を示す。FIG. 9 is a partially cutaway perspective view showing a state in which the upper lid of the cap is covered with an overcap, and shows a state in which the guide fitting portion is starting to be fitted into the outer peripheral ridge portion. 同キャップにおける上蓋にオーバーキャップを被せる状態を示す部分切欠斜視図であり、変形嵌合部が外周凹凸条部に嵌合し始めている状態を示す。FIG. 6 is a partially cutaway perspective view showing a state in which the upper lid of the cap is covered with an overcap, and shows a state in which the deformable fitting portion is starting to be fitted to the outer peripheral concave-convex rib portion. 同キャップにおける上蓋にオーバーキャップを被せた状態を示す断面図であり、案内用嵌合部および変形嵌合部が外周凹凸条部に嵌合した状態を示す。It is sectional drawing which shows the state which covered the upper cap in the same cap, and shows the state which the guide fitting part and the deformation | transformation fitting part were fitted by the outer peripheral uneven | corrugated strip part. 同キャップにおける上蓋およびオーバーキャップにより、中栓の離脱部を取り外した状態を示す断面図である。It is sectional drawing which shows the state which removed the removal part of the inside plug by the upper lid and overcap in the same cap. 同キャップにおけるオーバーキャップの案内嵌合部や変形嵌合部が上蓋の外周凹凸条部(被嵌合部)に嵌り込む状態を概念的に示す平面図である。It is a top view which shows notionally the guide fitting part of the overcap in the same cap, and a deformation | transformation fitting part which fit in the outer peripheral uneven | corrugated stripe | line part (fitted part) of an upper lid.

以下、本発明に係る実施の形態のキャップを、図面に基づき説明する。
図1などにおいて、1は、内部に内容物(内容液)が収容されている容器2に取付けられるキャップである。キャップ1は、容器2の口部3に取り付けられる中栓4と、回転することにより中栓4に着脱自在な上蓋5と、この上蓋5に嵌合した状態で被せられて、周方向に回転した際に上蓋5に係合して一体的に回転可能なオーバーキャップ6と、を備えている。中栓4と上蓋5とオーバーキャップ6とはそれぞれ、例えば合成樹脂により射出成形されるなどして製造され、弾性変形可能な性質を有する。
Hereinafter, a cap according to an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1 and the like, reference numeral 1 is a cap attached to a container 2 in which contents (content liquid) are stored. The cap 1 is attached to the mouth portion 3 of the container 2, an upper lid 5 that can be attached to and detached from the inner stopper 4 by rotating, and is covered with the upper lid 5 in a fitted state to rotate in a circumferential direction. And an overcap 6 which is engaged with the upper lid 5 and is integrally rotatable when the above operation is performed. The inner plug 4, the upper lid 5, and the overcap 6 are manufactured by, for example, injection molding with synthetic resin, and have elastically deformable properties.

図2、図3などに示すように、中栓4は、容器2の口部3に取り付けられる中栓本体部10と、弱化部11を介して中栓本体部10から離脱可能に設けられた離脱部12とを有している。中栓本体部10は、中央(弱化部11の外周)から上方に突出するノズル部16と、その下部が容器2の口部3に外側から嵌り込む円筒状の外筒部13と、外筒部13の内周に隙間を有する状態で設けられてその下部が容器2の口部3に内側から嵌り込む円筒状の内筒部14と、外筒部13および内筒部14のそれぞれ上端部箇所で径方向内側に延びて外筒部13と内筒部14などを繋ぐ上面部15と、上面部15の内周端より上方に段付きの筒形状に突出するとともに内周側部分でノズル部16の高さ方向略中央箇所に全周で接続されている段部17などが形成されている。   As shown in FIGS. 2 and 3, the inner stopper 4 is provided so as to be detachable from the inner stopper main body 10 via the weakening portion 11 and the inner stopper main body 10 attached to the mouth 3 of the container 2. It has a detachment part 12. The inner plug body portion 10 includes a nozzle portion 16 protruding upward from the center (outer periphery of the weakened portion 11), a cylindrical outer cylinder portion 13 whose lower portion is fitted into the mouth portion 3 of the container 2 from the outside, and an outer cylinder. A cylindrical inner cylindrical portion 14 that is provided with a gap on the inner periphery of the portion 13 and has its lower portion fitted into the mouth portion 3 of the container 2 from the inside, and the upper end portions of the outer cylindrical portion 13 and the inner cylindrical portion 14, respectively. An upper surface portion 15 that extends radially inward at a location to connect the outer tubular portion 13 and the inner tubular portion 14 and the like, and protrudes in a stepped tubular shape above the inner peripheral end of the upper surface portion 15 and has a nozzle at the inner peripheral portion A step portion 17 and the like that are connected over the entire circumference are formed at a substantially central portion in the height direction of the portion 16.

外筒部13の下方には、薄肉部19Aを介して下方に延びるとともに径方向外側および内周側にも突出する鍔状部18が全周に形成され、容器2の使用後などに、鍔状部18の1か所に形成された縦薄肉溝部19Bおよび薄肉部19Aから鍔状部18を切断することで、容器2から中栓4などを外し易くなるよう図られている。また、中栓本体部10の段部17の外周には、上蓋5に形成された後述するねじ部31(図1、図6など参照)に螺合するねじ部20が形成されている。また、中栓本体部10の上面部15には、徐々に盛り上がって、上蓋5に形成された規制リブ44(図6参照)に当接可能とされて上蓋5の回転閉鎖位置を認識させるストッパ部27や、上方に突出して、上蓋5に形成された撥音用突起47(図5、図6参照)に当接可能とされて上蓋5が閉鎖直前状態まで回転した際に手応えと音を発生させる撥音用突部28が複数箇所(この実施の形態では2箇所)に設けられている。   Below the outer cylindrical portion 13, a collar-shaped portion 18 that extends downward through the thin-walled portion 19A and that also protrudes radially outward and on the inner peripheral side is formed all around, and after use of the container 2 or the like, the collar-shaped portion 18 is formed. By cutting the brim-shaped portion 18 from the vertical thin-walled groove portion 19B and the thin-walled portion 19A formed at one place of the shaped portion 18, it is possible to easily remove the inner plug 4 and the like from the container 2. Further, on the outer periphery of the step portion 17 of the inner plug body portion 10, a screw portion 20 that is screwed into a screw portion 31 (see FIG. 1, FIG. 6 and the like) formed on the upper lid 5 to be described later is formed. Further, the stopper 15 that gradually rises up on the upper surface portion 15 of the inner plug body 10 and can come into contact with the regulating rib 44 (see FIG. 6) formed on the upper lid 5 to recognize the rotationally closed position of the upper lid 5. When the upper lid 5 is rotated up to a state immediately before closing, it is possible to make a sound and a sound is generated by being capable of contacting the portion 27 and the sound-repellent protrusion 47 (see FIGS. 5 and 6) formed on the upper lid 5 and protruding. The sound-repellent protrusions 28 are provided at a plurality of locations (two locations in this embodiment).

中栓4の離脱部12は弱化部11の内側を少し中央側が若干下方に窪んだ状態で閉鎖する底面壁部21と、底面壁部21の外周寄り箇所(弱化部11よりも少し内周側箇所)から上方に筒状に延びる離脱筒状部22と、を有する。   The detaching part 12 of the inside plug 4 is a bottom wall part 21 that closes the inside of the weakening part 11 with the central part slightly recessed downward, and a part near the outer circumference of the bottom wall part 21 (a little inside the weakening part 11). (A location), and a detachable tubular portion 22 that extends in a tubular shape upward.

離脱筒状部22には、径方向内側に突出する状態で上下に延びる離脱内側突条リブ25と、径方向外側に突出する状態で上下に延びる離脱外側突条リブ24とが、それぞれ周方向所定角度毎に複数形成されている。なお、この実施の形態では、離脱内側突条リブ25および離脱外側突条リブ24が、それぞれ周方向60度毎に形成されているが、これに限るものではなく、離脱内側突条リブ25と離脱外側突条リブ24とは、それぞれ互いに異なる角度毎に形成されていてもよい。離脱内側突条リブ25は、上蓋5の離脱用内筒部32の外周に周方向所定角度毎(この実施の形態では周方向60度毎)に複数形成された離脱用内筒突条リブ33(図5、図6参照)に、上蓋5が中栓4に対して所定の周方向(例えば、平面視して時計回り)に回転された際に係合可能とされている。また、離脱外側突条リブ24は、上蓋5の離脱用外筒部34の内周に周方向所定角度毎(この実施の形態では周方向60度毎)に複数形成された離脱用外筒突条リブ35(図5、図6参照)に、上蓋5が中栓4に対して所定の周方向(例えば、平面視して時計回り)に回転された際に係合可能とされている。   The detachable tubular portion 22 includes a detachable inner protruding rib 25 extending vertically in a state of protruding radially inward and a detachable outer protruding rib 24 extending vertically in a state of protruding radially outward, respectively. A plurality is formed at each predetermined angle. In addition, in this embodiment, the disengagement inner side ribs 25 and the disengagement outer side ribs 24 are formed at every 60 degrees in the circumferential direction. The detached outer side ribs 24 may be formed at different angles. The inner release ribs 25 are formed on the outer circumference of the inner tubular portion 32 of the upper lid 5 at predetermined circumferential angles (every 60 degrees in the circumferential direction). As shown in FIGS. 5 and 6, the upper lid 5 can be engaged with the inner plug 4 when the upper lid 5 is rotated in a predetermined circumferential direction (eg, clockwise in plan view). Further, the detachment outer protrusion ribs 24 are formed on the inner periphery of the detachment outer tubular portion 34 of the upper lid 5 at predetermined circumferential angles (every 60 degrees in the circumferential direction in the present embodiment). The upper rib 5 can be engaged with the rib 35 (see FIGS. 5 and 6) when the upper lid 5 is rotated with respect to the inner plug 4 in a predetermined circumferential direction (clockwise in plan view).

また、図3に示すように、中栓4の離脱筒状部22の先端部外周には径方向内側に窪む凹状部26が形成されているとともに、これに対応して、図5に示すように、上蓋5の離脱用外筒部34の基部内周には径方向内側に突出する凸状部36が形成され、中栓4に対して上蓋5が所定位置までねじ込まれると、中栓4の凹状部26が上蓋5の凸状部36が嵌り込むように構成されている。   Further, as shown in FIG. 3, a concave portion 26 that is recessed radially inward is formed on the outer periphery of the distal end portion of the detaching tubular portion 22 of the inner plug 4, and correspondingly, shown in FIG. As described above, the convex portion 36 protruding inward in the radial direction is formed on the inner circumference of the base of the detaching outer cylindrical portion 34 of the upper lid 5, and when the upper lid 5 is screwed into the inner stopper 4 to a predetermined position, the inner stopper The concave portion 26 of No. 4 is configured to fit the convex portion 36 of the upper lid 5.

図4〜図6などに示すように、上蓋5は、略円板形状の天板部37と、この天板部37の外周縁から斜め下方に傾斜する第1傾斜面38aを介してこの第1傾斜面部38aの外周縁から垂下する上側壁面部38と、この上側面部38から段状に窪むとともに径方向外側に拡がる段部39と、段部39の外周縁から斜め下方に傾斜する第2傾斜面部40と、第2傾斜面部40の外周縁から垂下する筒状の下側壁面部41と、段部39の窪んだ部分(すなわち、下側壁面部41よりも内側箇所)から下方に垂下する筒状の上蓋円筒部42と、上蓋円筒部42よりもさらに内周側に形成されて天板部37から垂下して中栓4のノズル部16の先端部内周に接触して密閉するノズル密閉用筒部43と、ノズル密閉用筒部43よりもさらに天板部37の内周側箇所から垂下する離脱用外筒部34と、離脱用外筒部34よりもさらに天板部37の内周側箇所から垂下する離脱用内筒部32などを有する。   As shown in FIG. 4 to FIG. 6 and the like, the upper lid 5 is provided with a substantially disc-shaped top plate portion 37 and a first inclined surface 38 a inclined obliquely downward from the outer peripheral edge of the top plate portion 37. The upper wall surface portion 38 that hangs down from the outer peripheral edge of the first inclined surface portion 38a, the step portion 39 that is recessed stepwise from the upper side surface portion 38 and expands radially outward, and the first inclined surface portion 38a that is inclined obliquely downward from the outer peripheral edge of the step portion 39. The second inclined surface portion 40, the cylindrical lower side wall surface portion 41 that hangs from the outer peripheral edge of the second inclined surface portion 40, and the recessed portion of the step portion 39 (that is, a portion inside the lower side wall surface portion 41) hang downward. A cylindrical upper lid cylindrical portion 42, and a nozzle seal formed on the inner peripheral side of the upper lid cylindrical portion 42 and hanging from the top plate portion 37 to come into contact with the inner periphery of the tip end portion of the nozzle portion 16 of the inner plug 4 for sealing. And the top plate portion 37 of the nozzle sealing cylinder portion 43. And detaching outer cylindrical portion 34 depending from the periphery portion, with a like leaving in-cylinder unit 32 for further depending from the inner peripheral side portion of the top plate portion 37 than the detaching outer tubular portion 34.

上蓋円筒部42の下端は、上蓋5を中栓4に被せた際に中栓4の上面部15に上方から当接可能とされ、上蓋円筒部42の内周には、中栓4のねじ部20に螺合するねじ部31が形成されている。ノズル密閉用筒部43は、上蓋5を中栓4に被せた際に中栓4のノズル部16に内周側から密接して、上蓋5を装着した際に容器5内の内容物が洩れ出さないよう密閉する。   The lower end of the upper lid cylindrical portion 42 can come into contact with the upper surface portion 15 of the inner stopper 4 from above when the upper lid 5 is covered with the inner stopper 4, and the screw of the inner stopper 4 is provided on the inner periphery of the upper lid cylindrical portion 42. A screw portion 31 that is screwed into the portion 20 is formed. When the upper lid 5 is put on the inner stopper 4, the nozzle sealing cylinder portion 43 comes into close contact with the nozzle portion 16 of the inner stopper 4 from the inner peripheral side, and when the upper lid 5 is attached, the contents in the container 5 leak. Seal it so that it does not come out.

上蓋5の離脱用外筒部34には、上述したように、内周に周方向所定角度毎(上述したように、この実施の形態では周方向60度毎)に回転係合部としての離脱用外筒突条リブ35が複数形成されているとともに、上蓋5の離脱用外筒突条リブ35の基部に内周側に突出する凸状部36が形成されている。また、上蓋5の離脱用内筒部32には、上述したように、内周に周方向所定角度毎(上述したように、この実施の形態では周方向60度毎)に回転係合部としての離脱用内筒突条リブ33が複数形成されている。そして、上蓋5を中栓4に被せると、中栓4の離脱部12の離脱筒状部22に、上蓋5の離脱用外筒突条リブ35が径方向外側から嵌合し、また、上蓋5の離脱用内筒突条リブ33が径方向内側から嵌合するとともに、中栓4の離脱部12に形成された凹状部26に上蓋5の離脱用外筒突条リブ35の基部に形成された凸状部36が嵌合する。   As described above, the outer cylinder portion 34 for disengagement of the upper lid 5 is disengaged as a rotary engaging portion on the inner circumference at every predetermined angle in the circumferential direction (as described above, at every 60 degrees in the circumferential direction in this embodiment). A plurality of outer cylinder protruding ribs 35 for use are formed, and a convex portion 36 protruding to the inner peripheral side is formed at the base of the outer cylinder protruding rib 35 for removal of the upper lid 5. Further, as described above, the detachable inner cylinder portion 32 of the upper lid 5 serves as a rotary engagement portion at a predetermined circumferential angle on the inner circumference (as described above, at every 60 degrees in the circumferential direction in this embodiment). A plurality of inner cylinder protruding ribs 33 for detachment are formed. When the upper lid 5 is put on the inner plug 4, the detaching tubular portion ribs 35 of the upper lid 5 are fitted into the detaching tubular portion 22 of the detaching portion 12 of the inner stopper 4 from the outside in the radial direction. 5 is fitted in from the inner side in the radial direction, and is formed in the concave portion 26 formed in the detaching portion 12 of the inner plug 4 at the base of the outer tubular rib 35 for detaching in the upper lid 5. The formed convex portion 36 is fitted.

また、上蓋5における下側壁面部41の内周には、中栓4に対して上蓋5を閉め終わる際に、中栓4のストッパ部27に対して当接可能な規制リブ44が周方向複数箇所(この実施の形態では2箇所)に設けられている。また、上蓋5における上蓋円筒部42の外周には、中栓4に対して上蓋5を閉め終わる際に、中栓4の撥音用突部28に当接して変形するとともに音を発する撥音用突起47が周方向複数箇所(この実施の形態では2箇所)に設けられている。   Further, on the inner circumference of the lower side wall surface portion 41 of the upper lid 5, there are provided a plurality of regulation ribs 44 in the circumferential direction that can come into contact with the stopper portion 27 of the inner stopper 4 when the upper lid 5 is completely closed with respect to the inner stopper 4. It is provided at two places (two places in this embodiment). Further, on the outer periphery of the upper lid cylindrical portion 42 of the upper lid 5, when the upper lid 5 is completely closed with respect to the inner plug 4, the sound-repellent protrusion that comes into contact with the sound-repellent protrusion 28 of the inner plug 4 to be deformed and emit a sound. 47 are provided at a plurality of locations in the circumferential direction (two locations in this embodiment).

図4、図5などに示すように、上蓋5の下側壁面部41には、径方向外側に突出する(この実施の形態では、平面視して鋸刃形状となるように径方向外側に突出する)被嵌合部としての外周凹凸条部(いわゆるローレット)45が周方向に対して複数連続して形成されているとともに、下側壁面部41の下端部に、外側に鍔状に広がるフランジ部46が形成されている。また、この実施の形態では、フランジ部46の上部には、下側壁面部41から下方ほど徐々に径方向外側(径方向外側)に広がる傾斜面46aが形成されている。   As shown in FIGS. 4 and 5, the lower side wall surface portion 41 of the upper lid 5 projects radially outward (in this embodiment, it projects radially outward so as to have a saw blade shape in plan view). A plurality of outer peripheral ridge-and-groove portions (so-called knurls) 45 as the fitted portion are continuously formed in the circumferential direction, and a flange portion that spreads outward in a flange shape at the lower end portion of the lower side wall surface portion 41. 46 is formed. In addition, in this embodiment, an inclined surface 46a is formed on the upper portion of the flange portion 46 so as to gradually expand radially outward (radially outward) from the lower side wall surface portion 41.

ここで、上蓋5の下側壁面部41に形成されている被嵌合部としての外周凹凸条部45は、周方向に一定角度で凹凸となるように形成され、外周凹凸条部45の1つの凹凸部が周方向に所定の角度、例えば8度の角度で凹凸状(谷部と山部)となるように連続して形成されている(いわゆる8度のピッチで形成されている)。また、外周凹凸条部45は、オーバーキャップ6に設けられた後述する嵌合部54に嵌合する(嵌り込む)。   Here, the outer peripheral concave-convex ridge portion 45 as the fitted portion formed on the lower side wall surface portion 41 of the upper lid 5 is formed so as to be concave and convex at a constant angle in the circumferential direction. The concavo-convex portions are continuously formed in a concavo-convex shape (valleys and peaks) at a predetermined angle in the circumferential direction, for example, at an angle of 8 degrees (so-called pitch of 8 degrees). Further, the outer peripheral concave-convex strip portion 45 is fitted (fitted) into a fitting portion 54, which will be described later, provided on the overcap 6.

図1および図7、図8などに示すように、オーバーキャップ6は、上蓋5に被せられる覆い部51と、この覆い部51の上部内側から下方に筒状に延びる中筒部52と、この中筒部52からさらに下方に延びて(つまり、中筒部52を介して覆い部51から下方に延びて)弾性変形して上蓋5を保持可能な複数の保持用足部53と、中筒部52から径方向内側に突出して上蓋5の外側凸条部41に嵌合する複数の嵌合部54と、覆い部51の上部内側における中筒部52よりも内周側の箇所から下方に筒状に延びてオーバーキャップ6が上蓋5に被せられた際に、上蓋5の上側壁面部38に外周から嵌合するとともに段部39に上方から当接する内筒部55などが形成されている。なお、この実施の形態では、覆い部51が、平面円板状の天面部51Aと、天面部51Aの外周縁から下方に筒状に延びる外周面部51Bとから構成されており、外周面部51Bの直径が上蓋5や中栓4の直径より大きくなっているが、覆い部51がこのような形状に限られるものではなく、天面部51Aと外周面部51Bとが傾斜面や湾曲面を介してなだらかに接続される形状であってもよい。   As shown in FIG. 1, FIG. 7, FIG. 8 and the like, the overcap 6 includes a cover portion 51 that covers the upper lid 5, an intermediate tubular portion 52 that extends downward from the inside of the upper portion of the cover portion 51 in a tubular shape. A plurality of holding legs 53 that can further hold the upper lid 5 by further extending downward from the middle tubular portion 52 (that is, extending downward from the cover portion 51 via the middle tubular portion 52), and the middle barrel. A plurality of fitting portions 54 that protrude radially inward from the portion 52 and fit into the outer protruding ridge portion 41 of the upper lid 5, and downward from a position on the inner side of the middle tubular portion 52 inside the upper portion of the cover portion 51. When the overcap 6 extends in a tubular shape and is covered by the upper lid 5, an inner tubular portion 55 and the like are formed which are fitted to the upper wall surface portion 38 of the upper lid 5 from the outer periphery and contact the step 39 from above. . In addition, in this embodiment, the cover portion 51 is composed of a flat disk-shaped top surface portion 51A and an outer peripheral surface portion 51B extending downward from the outer peripheral edge of the top surface portion 51A in a cylindrical shape. Although the diameter is larger than the diameters of the upper lid 5 and the inner plug 4, the cover portion 51 is not limited to such a shape, and the top surface portion 51A and the outer peripheral surface portion 51B are gently curved via the inclined surface or the curved surface. It may be a shape connected to.

また、中筒部52より下方の領域で、周方向の適当角度毎に切欠溝部55が設けられて、これらの切欠溝部55間の部分が保持用足部53とされている。そして、隣り合う保持用足部53同士の間に、切欠溝部55が設けられていることで、保持用足部53は、平面視した状態で径方向に対して弾性変形可能とされている。また、図7、図9、図11などに示すように、保持用足部53の下端部には、径方向内側に突出し、上蓋5に対して下方に移動された際に径方向外側に変形して上蓋5のフランジ部46を乗り越え可能で、フランジ部46を乗り越えるとこのフランジ部46を下方から係止する内側突出部53aが形成されている。   Further, cutout groove portions 55 are provided at appropriate angles in the circumferential direction in a region below the middle tubular portion 52, and a portion between these cutout groove portions 55 serves as a holding foot portion 53. Since the notch groove portion 55 is provided between the adjacent holding foot portions 53, the holding foot portion 53 can be elastically deformed in the radial direction in a plan view. Further, as shown in FIG. 7, FIG. 9, FIG. 11, etc., the lower end portion of the holding foot portion 53 projects radially inward and is deformed radially outward when moved downward with respect to the upper lid 5. Thus, an inner projecting portion 53a is formed which can ride over the flange portion 46 of the upper lid 5 and which, when riding over the flange portion 46, locks the flange portion 46 from below.

ここで、オーバーキャップ6の嵌合部54は、互いに隣り合う周方向の離間角度が、前記被嵌合部としての外周凹凸条部45が設けられている角度の整数倍の角度で設けられている複数の案内嵌合部54Aと、この案内用嵌合部54Aに対する周方向の離間角度が、外周凹凸条部45が設けられている角度の整数倍の角度とは異なる角度で設けられて外周凹凸条部45に対して周方向に弾性変形しながら嵌合する変形嵌合部54Bと、から構成されている。   Here, the fitting portion 54 of the overcap 6 is provided such that the separation angle in the circumferential direction adjacent to each other is an integer multiple of the angle at which the outer peripheral concave-convex line portion 45 as the fitted portion is provided. The plurality of guide fitting parts 54A that are present and the separation angle in the circumferential direction with respect to the guide fitting parts 54A are provided at an angle different from an integer multiple of the angle at which the outer peripheral concave-convex line parts 45 are provided. It is composed of a deformable fitting portion 54B which is fitted to the uneven strip portion 45 while elastically deforming in the circumferential direction.

この実施の形態では、図8に示すように、下方から見て(および上方から平面視して)、案内嵌合部54Aと変形嵌合部54Bとが周方向に60度間隔で交互に設けられている。したがって、互いに隣り合う案内嵌合部54Aの周方向の離間角度(この実施の形態では、120度)が、互いに隣り合う外周凹凸条部45が設けられている角度(この実施の形態では、8度)の整数倍(この実施の形態では、15倍)の角度で設けられている。一方、変形嵌合部54Bは隣り合う案内嵌合部54Aの周方向の離間角度が60度であり、外周凹凸条部45が設けられている角度(この実施の形態では、8度)の整数倍の角度とは異なる角度(この実施の形態では、7.5倍の角度)で設けられている。   In this embodiment, as shown in FIG. 8, the guide fitting portions 54A and the deformable fitting portions 54B are alternately provided at intervals of 60 degrees in the circumferential direction when viewed from below (and viewed from above from above). Has been. Therefore, the spacing angle (120 degrees in this embodiment) in the circumferential direction between the guide fitting portions 54A that are adjacent to each other is the angle at which the outer peripheral concave-convex line portions 45 that are adjacent to each other are provided (8 in this embodiment). The angle is an integral multiple of (degrees) (15 times in this embodiment). On the other hand, in the deformable fitting portion 54B, the adjacent guide fitting portions 54A have a circumferential separation angle of 60 degrees, and an integer (8 degrees in this embodiment) at which the outer peripheral concave-convex line portion 45 is provided. It is provided at an angle different from the double angle (in this embodiment, an angle of 7.5 times).

また、図7、図9、図11、図14〜図19などに示すように、オーバーキャップ6の天面部51Aが上方に向くように配置した状態で、案内嵌合部54Aの下端部が、変形嵌合部54Bの下端部よりも下方の位置に形成されている。この実施の形態では、案内嵌合部54Aおよび変形嵌合部54Bの何れもオーバーキャップ6の天面部51Aの下面から中筒部52の内壁面に沿って下方にリブ状に延びるように形成されているが、案内嵌合部54Aは、中筒部52から保持用足部53にかけて上下に延びるように形成されている一方、変形嵌合部54Bは、保持用足部53には形成されず、中筒部52が設けられている上下範囲において上下に延びるように形成されている。なお、案内嵌合部54Aの下端部が、変形嵌合部54Bの下端部よりも下方の位置に形成されていれば、必ずしも、案内嵌合部54Aだけが中筒部52から保持用足部53に形成されていなくてもよい。すなわち、案内嵌合部54Aの下端部が、変形嵌合部54Bの下端部よりも下方の位置に形成されていればよく、案内嵌合部54Aだけでなく変形嵌合部54Bも中筒部52から保持用足部53に形成されていたり、案内嵌合部54Aおよび変形嵌合部54Bの何れも保持用足部53には形成されずに中筒部52のみに形成されていたりしてもよい。また、図12に示すように、変形嵌合部54Bの先端部(下端部)には、先端(下端)ほど周方向に対する厚みが薄くなるように傾斜面56Bが形成されている。また、この実施の形態では、図10に示すように、案内嵌合部54Aの先端部(下端部)にも、先端(下端)ほど周方向に対する厚みが薄くなるように傾斜面56Aが形成されている。なお、傾斜面56A、56Bと先端部との接続部分や、傾斜面56A、56Bと案内嵌合部54Aや変形嵌合部54Bの直線部(傾斜面56A、56Bよりも上方の直線部)との接続部分は、なるべく曲率半径が大きい湾曲形状に形成して滑らかに接続するようにすると好適であるが、これに限るものではない。   Further, as shown in FIG. 7, FIG. 9, FIG. 11, FIG. 14 to FIG. 19, etc., with the top surface portion 51A of the overcap 6 arranged so as to face upward, the lower end portion of the guide fitting portion 54A is It is formed at a position lower than the lower end of the deformation fitting portion 54B. In this embodiment, both the guide fitting portion 54A and the deformation fitting portion 54B are formed so as to extend downward in a rib shape from the lower surface of the top surface portion 51A of the overcap 6 along the inner wall surface of the middle tubular portion 52. However, the guide fitting portion 54A is formed so as to extend vertically from the middle tubular portion 52 to the holding foot portion 53, while the deformation fitting portion 54B is not formed in the holding foot portion 53. It is formed so as to extend vertically in the vertical range in which the middle tubular portion 52 is provided. If the lower end portion of the guide fitting portion 54A is formed at a position lower than the lower end portion of the deformation fitting portion 54B, only the guide fitting portion 54A is required to be held from the middle tubular portion 52 to the holding foot portion. It may not be formed in 53. That is, it suffices that the lower end portion of the guide fitting portion 54A is formed at a position lower than the lower end portion of the deformation fitting portion 54B, and not only the guide fitting portion 54A but also the deformation fitting portion 54B is the middle tubular portion. 52 is formed in the holding foot portion 53, or neither the guide fitting portion 54A nor the deformation fitting portion 54B is formed in the holding foot portion 53 but only in the middle tubular portion 52. Good. Further, as shown in FIG. 12, an inclined surface 56B is formed at the tip (lower end) of the deformable fitting portion 54B so that the tip (lower end) becomes thinner in the circumferential direction. Further, in this embodiment, as shown in FIG. 10, the tip end (lower end) of the guide fitting portion 54A is also provided with an inclined surface 56A such that the thickness becomes smaller in the circumferential direction toward the tip (lower end). ing. It should be noted that a connection portion between the inclined surfaces 56A and 56B and the tip portion, a linear portion of the inclined surfaces 56A and 56B and the guide fitting portion 54A and the deformation fitting portion 54B (a linear portion above the inclined surfaces 56A and 56B), and It is preferable that the connecting portion of (1) is formed in a curved shape having a large radius of curvature so as to connect smoothly, but the connecting portion is not limited to this.

また、上蓋5にオーバーキャップ6を組み付ける際には、オーバーキャップ6を上蓋5に対して周方向に直交する軸心方向X(図14参照)に沿って打栓させる(例えば、上蓋5の上方からオーバーキャップ6を移動させて打栓させる)ことにより組み付けるが、この打栓時に、オーバーキャップ6の案内嵌合部54Aが上蓋5の外周凹凸条部(被嵌合部)45に嵌合した(図15参照)後に、変形嵌合部54Bが被嵌合部に嵌合する(図16、図17参照)ように構成されている。   When the overcap 6 is assembled to the upper lid 5, the overcap 6 is capped along the axial direction X (see FIG. 14) orthogonal to the upper lid 5 in the circumferential direction (for example, above the upper lid 5). The guide fitting portion 54A of the over cap 6 is fitted into the outer peripheral concave-convex ridge portion (fitted portion) 45 of the upper lid 5 at the time of this stoppering. After that (see FIG. 15), the deformable fitting portion 54B is configured to fit into the fitted portion (see FIGS. 16 and 17).

次に、上記構成における、キャップ1における中栓4と上蓋5とオーバーキャップ6との組み付け手順などを含む作用を説明する。
まず、キャップ1における中栓4と上蓋5との組み付け手順について説明する。中栓4と上蓋5とを個別に製作した後、離脱部12が中栓本体部10に設けられている未使用状態において、図13に示すように、中栓4に対して上蓋5を下方に移動して(すなわち、キャップ1の軸心方向Xに沿って互いに組み合わせる方向に移動して)、中栓4に上蓋5を取り付ける。なお、この際には、中栓4の内部に治具(図示省略)を嵌め込み、上蓋5を中栓4の上方から下向きに打栓する(打ち込む)。
Next, an operation including a procedure for assembling the inner plug 4, the upper lid 5, and the overcap 6 in the cap 1 in the above configuration will be described.
First, a procedure for assembling the inner plug 4 and the upper lid 5 in the cap 1 will be described. After the inner stopper 4 and the upper lid 5 are separately manufactured, the upper lid 5 is moved downward with respect to the inner stopper 4 as shown in FIG. 13 in an unused state in which the detaching portion 12 is provided in the inner stopper main body 10. (That is, moving in a direction in which they are combined with each other along the axial direction X of the cap 1) to attach the upper lid 5 to the inner plug 4. At this time, a jig (not shown) is fitted inside the inner plug 4, and the upper lid 5 is tapped (dried) downward from above the inner plug 4.

これにより、図14の下方領域において、中栓4と上蓋5とを組み付けた状態を示すように(但し、図14は、これより後のオーバーキャップ6の組み付け状態を示す)、上蓋5のノズル密閉用筒部43が中栓4のノズル部16における上部内側に挿入されるとともに、上蓋5の天板部37が離脱部12の上端面(離脱筒状部22の上端部)に当接する。また、上蓋5のねじ部31が中栓4のねじ部20を乗り越えるとともに、離脱筒状部22が上蓋5の離脱用内筒部32と離脱用外筒部34との間に入り込んで離脱部12が保持され、離脱筒状部22の先端部に設けられた凹状部26に上蓋5の離脱用外筒部34の基部に設けられた凸状部36が嵌め込まれる。また、上蓋5の離脱用内筒突条リブ33が中栓4の離脱内側突条リブ25間に挿入されるとともに、上蓋5の離脱用外筒突条リブ35が中栓4の離脱外側突条リブ24間に挿入され、このような状態で、上蓋5が中栓4に取り付けられる。   As a result, in the lower region of FIG. 14, the nozzle of the upper lid 5 is shown so as to show the state in which the inner stopper 4 and the upper lid 5 are assembled (however, FIG. 14 shows the assembled state of the overcap 6 after this). The sealing cylinder portion 43 is inserted inside the upper portion of the nozzle portion 16 of the inner plug 4, and the top plate portion 37 of the upper lid 5 contacts the upper end surface of the detaching portion 12 (the upper end portion of the detaching tubular portion 22). Further, the threaded portion 31 of the upper lid 5 rides over the threaded portion 20 of the inner plug 4, and the detaching tubular portion 22 enters between the detaching inner tubular portion 32 and the detaching outer tubular portion 34 of the upper lid 5 to come out. 12 is held, and the convex portion 36 provided on the base portion of the detaching outer tubular portion 34 of the upper lid 5 is fitted into the concave portion 26 provided on the distal end portion of the detaching tubular portion 22. Further, the detaching inner cylindrical ribs 33 of the upper lid 5 are inserted between the detaching inner protruding ribs 25 of the inner plug 4, and the detaching outer cylindrical ribs 35 of the upper lid 5 are detached outer protruding ribs of the inner plug 4. It is inserted between the ribs 24, and the upper lid 5 is attached to the inner plug 4 in this state.

なお、この際には、図1や図14の下方領域に示すように、上蓋5の天板部36が離脱部12の上端面に当接し、また、上蓋円筒部42の下端部が中栓4の上面部15に当接するため、上蓋5の離脱用内筒突条リブ33が中栓4の離脱内側突条リブ25間に過剰に挿入されたり、上蓋5の離脱用外筒突条リブ35が中栓4の離脱外側突条リブ24間に過剰に挿入されたりすることはなく、離脱用内筒突条リブ33や離脱用外筒突条リブ35の先端が弱化部11に当接して破断させてしまうことはない。   At this time, as shown in the lower region of FIG. 1 and FIG. 14, the top plate portion 36 of the upper lid 5 abuts on the upper end surface of the detaching portion 12, and the lower end portion of the upper lid cylindrical portion 42 has an inner stopper. 4, the inner cylinder ribs 33 for detaching the upper lid 5 are excessively inserted between the inner ribs 25 on the inner side of the inner plug 4, or the outer ribs for detaching the upper lid 5 are separated. 35 is not excessively inserted between the detaching outer side protruding ribs 24 of the inner plug 4, and the tips of the inner releasing ribs 33 and the outer releasing ribs 35 come into contact with the weakened portion 11. Will not break.

次に、上蓋5が取り付けられた中栓4を打栓して容器2の口部3に取り付けた後、図14に示すように、中栓4が組み付けられている上蓋5に対してオーバーキャップ6を下方に移動して(すなわち、キャップ1の軸心方向Xに沿って上蓋5とオーバーキャップ6とを互いに組み合わせる方向に移動して)、上蓋5にオーバーキャップ6を取り付ける。なお、この際には、オーバーキャップ6を上蓋5の上方から下向きに打栓する(打ち込む)。   Next, after the inner plug 4 to which the upper lid 5 is attached is stoppered and attached to the mouth portion 3 of the container 2, as shown in FIG. 14, an overcap is applied to the upper lid 5 to which the inner stopper 4 is assembled. 6 is moved downward (that is, in the direction in which the upper lid 5 and the overcap 6 are combined with each other along the axial direction X of the cap 1), and the overcap 6 is attached to the upper lid 5. At this time, the overcap 6 is capped (driven) downward from above the upper lid 5.

これにより、図15に示すように、まず、オーバーキャップ6の案内嵌合部54Aの先端部に形成された傾斜面56Aが上蓋5の外周凹凸条部(被嵌合部)45に接触するなどして、上蓋5とオーバーキャップ6との互いの周方向の相対位置が決められながら(案内されながら)、オーバーキャップ6の案内嵌合部54Aが上蓋5の外周凹凸条部(被嵌合部)45間に挿入されながら嵌合する。また、オーバーキャップ6を上蓋5の上方から下向きにさらに打栓する(打ち込む)と、図16に示すように、オーバーキャップ6の変形嵌合部54Bの先端部に形成された傾斜面56Bが上蓋5の外周凹凸条部(被嵌合部)45に接触するなどしながら、オーバーキャップ6の変形嵌合部54Bが上蓋5の外周凹凸条部(被嵌合部)45間に挿入されながら嵌合する。そして、オーバーキャップ6を上蓋5の上方から下向きにさらに打栓する(打ち込む)と、図17、図18に示すように、オーバーキャップ6の保持用足部53に形成した内側突出部53aが上蓋5のフランジ部46を乗り越え、フランジ部46を下方から係止する。   As a result, as shown in FIG. 15, first, the inclined surface 56A formed at the tip end portion of the guide fitting portion 54A of the overcap 6 comes into contact with the outer peripheral concave-convex line portion (fitted portion) 45 of the upper lid 5, etc. Then, while the relative positions of the upper lid 5 and the overcap 6 in the circumferential direction of each other are determined (while being guided), the guide fitting portion 54A of the overcap 6 allows the outer peripheral concave-convex ridge portion (fitted portion) of the upper lid 5 to be fitted. ) Fitting while being inserted between 45. Further, when the overcap 6 is further stoppered (driven) downward from above the upper lid 5, as shown in FIG. 16, the inclined surface 56B formed at the tip of the deformable fitting portion 54B of the overcap 6 becomes the upper lid. 5, the deformation fitting portion 54B of the overcap 6 is inserted between the outer peripheral ridge-ridge portions (fitted portions) 45 of the upper lid 5 while being fitted. To meet. Then, when the overcap 6 is further stoppered (driven) downward from above the upper lid 5, as shown in FIGS. 17 and 18, the inner protruding portion 53a formed on the holding foot portion 53 of the overcap 6 is covered with the upper lid 5. 5, the flange portion 46 is overcome, and the flange portion 46 is locked from below.

すなわち、図14、図15に示すように、上蓋5に対してオーバーキャップ6を打栓させて組み付ける際、第1段階では、互いに隣り合う案内嵌合部54A間の周方向の離間角度(いわゆる周方向ピッチ)が、被嵌合部である外周凹凸条部45が設けられている角度(外周凹凸条部45の周方向ピッチ)の整数倍の角度で設けられている案内嵌合部54Aだけが外周凹凸条部(被嵌合部)45に嵌り込む(図20参照)ので、この際の摩擦力を最小限に抑えることができて比較的小さな力で打栓できる。   That is, as shown in FIGS. 14 and 15, when the overcap 6 is capped and assembled to the upper lid 5, in the first step, a separation angle in the circumferential direction between the guide fitting portions 54A adjacent to each other (so-called). Only the guide fitting portion 54A having a circumferential pitch that is an integer multiple of the angle at which the outer peripheral concave-convex rib portion 45 that is the fitted portion is provided (the circumferential pitch of the outer peripheral concave-convex rib portion 45). Since it fits into the outer peripheral concave-convex line portion (fitted portion) 45 (see FIG. 20), the frictional force at this time can be minimized and the stopper can be tapped with a relatively small force.

また、オーバーキャップ6の変形嵌合部54Bは、案内用嵌合部54Aに対する離間角度が、被嵌合部である外周凹凸条部45が設けられている角度(外周凹凸条部45の周方向ピッチ)の整数倍の角度とは異なる角度で設けられているが、この変形嵌合部54Bが上蓋5の被嵌合部である外周凹凸条部45に嵌合する際には、既に案内嵌合部54Aが外周凹凸条部45に嵌合してオーバーキャップ6と上蓋5とが互いに周方向に移動できない状態に保持されている(位置決めされている)ので、打栓力の増加を最小限に抑えた状態でも、上蓋5の外周凹凸条部(被嵌合部)45に変形嵌合部54Bをキャップ1の周方向に変形させながら嵌め込むことができて(図16、図17、図20参照)、打栓時に必要な力を低めに抑えることが可能となる。また、オーバーキャップ6の変形嵌合部54Bは上蓋5の外周凹凸条部(被嵌合部)45に弾性変形して比較的大きな力で噛み込んだ状態で嵌合しているので、オーバーキャップ6により上蓋5を脱落しない状態で良好に保持できる。   Further, in the deformable fitting portion 54B of the overcap 6, the angle of separation from the guiding fitting portion 54A is the angle at which the outer peripheral concave-convex rib portion 45 that is the fitted portion is provided (the circumferential direction of the outer peripheral concave-convex rib portion 45). Although it is provided at an angle different from an angle that is an integral multiple of the pitch), when the deformable fitting portion 54B is fitted to the outer peripheral concave-convex strip portion 45 which is the fitted portion of the upper lid 5, the guide fitting is already performed. Since the mating portion 54A is fitted to the outer peripheral ridge-and-groove portion 45 and the overcap 6 and the upper lid 5 are held (positioned) in a mutually immovable manner in the circumferential direction, the increase in the tapping force is minimized. Even in the state of being suppressed to, the deformable fitting portion 54B can be fitted into the outer peripheral uneven line portion (fitted portion) 45 of the upper lid 5 while deforming in the circumferential direction of the cap 1 (FIG. 16, FIG. 17, FIG. 20), it is possible to keep the force required for tapping low. It made. Further, since the deformable fitting portion 54B of the overcap 6 is elastically deformed and fitted into the outer peripheral concave-convex ridge portion (fitted portion) 45 of the upper lid 5, the deformable fitting portion 54B is fitted with a relatively large force. 6, the upper lid 5 can be satisfactorily held without falling off.

また、最終的には、オーバーキャップ6の保持用足部53に形成した内側突出部53aが上蓋5のフランジ部46を乗り越え、フランジ部46を下方から係止するので、オーバーキャップ6の保持用足部53によっても上蓋5を脱落しない良好な状態で保持できる。なお、この実施の形態では、上蓋5のフランジ部46に傾斜面46aが形成されているとともに、オーバーキャップ6の内側突出部53aの下部に傾斜面が形成されており、これによっても、オーバーキャップ6の内側突出部53aが上蓋5のフランジ部46を良好に乗り越えることができるよう図られている。   Further, finally, since the inner protruding portion 53a formed on the holding foot portion 53 of the overcap 6 gets over the flange portion 46 of the upper lid 5 and locks the flange portion 46 from below, the holding portion of the overcap 6 is held. Even with the foot portion 53, the upper lid 5 can be held in a good state in which it does not fall off. In addition, in this embodiment, the inclined surface 46a is formed on the flange portion 46 of the upper lid 5, and the inclined surface is formed below the inner protruding portion 53a of the overcap 6, which also allows the overcap to be formed. The inner projecting portion 53a of 6 is designed to be able to satisfactorily get over the flange portion 46 of the upper lid 5.

そして、この状態で、オーバーキャップ6を軸心周りに回転させる(この実施の形態では、平面視して上蓋5に対してオーバーキャップ6を反時計回りに回転させる)と、オーバーキャップ6の嵌合部54である案内用嵌合部54Aおよび変形嵌合部54Bが上蓋5の外周凹凸条部(被嵌合部)45に当接して、オーバーキャップ6とともに上蓋5も一体回転され、また、上蓋5の離脱用内筒突条リブ33および離脱用外筒突条リブ35が中栓4の離脱内側突条リブ25および離脱外側突条リブ24に当接して、上蓋5とともに中栓4の離脱部12も一体回転される。これにより、中栓4の弱化部11を切断させて中栓本体部10から離脱部12を離脱させることができて、中栓4に注出口29(図19参照)を形成できる。この際、直径の大きなオーバーキャップ6を回転させるので、開封時に必要な回転力を小さく済ませることができる。すなわち、弱化部11の切断距離、ひいては注出口29(図19参照)の開口面積が比較的大きい場合でも、大きな力を加えなくても切断することができて便利である。   Then, in this state, when the overcap 6 is rotated around the axis (in this embodiment, the overcap 6 is rotated counterclockwise with respect to the upper lid 5 in plan view), the overcap 6 is fitted. The guide fitting portion 54A and the deformation fitting portion 54B, which are the joining portion 54, come into contact with the outer peripheral concave-convex ridge portion (fitted portion) 45 of the upper lid 5, and the upper lid 5 is integrally rotated together with the overcap 6, and The detaching inner cylindrical ribs 33 and the detaching outer cylindrical ribs 35 of the upper lid 5 come into contact with the inner detaching ribs 25 and the outer detaching ribs 24 of the inner plug 4, and together with the upper lid 5, The detaching part 12 is also rotated integrally. As a result, the weakened portion 11 of the inner plug 4 can be cut to detach the detaching portion 12 from the inner plug main body portion 10, and the pouring port 29 (see FIG. 19) can be formed in the inner plug 4. At this time, since the overcap 6 having a large diameter is rotated, it is possible to reduce the rotational force required for opening. That is, even if the cutting distance of the weakened portion 11 and thus the opening area of the spout 29 (see FIG. 19) is relatively large, it is possible to perform cutting without applying a large force, which is convenient.

また、上記構成においては、変形嵌合部54Bの先端部に、先端ほど周方向寸法が小さくなるように傾斜面56Bが形成されているので、これにより、打栓時に変形嵌合部54Bを比較的なめらかに、上蓋5の外周凹凸条部(被嵌合部)45間に周方向に弾性変形させながら挿入させる(嵌り込ませる)ことができ、これによっても、オーバーキャップ6を上蓋5に打栓させるなどして組み付ける場合に必要な力を低めに抑えることが可能となる。   Further, in the above configuration, since the inclined surface 56B is formed at the tip of the deformation fitting portion 54B such that the circumferential dimension becomes smaller toward the tip, this allows the deformation fitting portion 54B to be compared with each other when tapping. The upper cap 5 can be smoothly inserted into the outer peripheral concave-convex ridges (fitted parts) 45 while being elastically deformed in the circumferential direction (fitting). It is possible to suppress the force required when assembling by plugging it to a lower level.

また、上記構成においては、案内用嵌合部54Aの先端部にも、先端ほど周方向寸法が小さくなるように傾斜面56Aが形成されているので、これにより、打栓時に案内用嵌合部54Aをなめらかに上蓋5の外周凹凸条部(被嵌合部)45間に挿入させる(嵌り込ませる)ことができ、これによっても、オーバーキャップ6を上蓋5に打栓させるなどして組み付ける場合に必要な力を低めに抑えることが可能となる。   Further, in the above configuration, the inclined surface 56A is formed at the tip of the guide fitting portion 54A so that the circumferential dimension becomes smaller toward the tip. Therefore, the guide fitting portion at the time of tapping is formed. 54A can be smoothly inserted (fitted) between the outer peripheral concave-convex ridges (fitted portions) 45 of the upper lid 5, and also when the overcap 6 is assembled by tapping the upper lid 5 or the like. It is possible to reduce the power required for

このように、打栓する際の力を最小限に抑えても、良好に上蓋5を保持できるので、打栓工程での信頼性を向上させることができる。   In this way, the upper lid 5 can be satisfactorily held even if the force at the time of tapping is suppressed to the minimum, so the reliability in the tapping step can be improved.

また、上記実施の形態においては、覆い部51から下方に延びて径方向に弾性変形して、上蓋5を保持可能な保持用足部53が設けられている。したがって、オーバーキャップ6を上蓋5に被せることで、保持用足部53によっても上蓋5を保持することができ、より確実にオーバーキャップ6によって上蓋5を保持することができ、キャップ1としての信頼性をさらに向上させることができる。   Further, in the above-described embodiment, the holding foot portion 53 that extends downward from the cover portion 51 and is elastically deformed in the radial direction to hold the upper lid 5 is provided. Therefore, by covering the upper lid 5 with the overcap 6, the upper lid 5 can be held by the holding foot portion 53, and the upper lid 5 can be held by the overcap 6 more reliably. The property can be further improved.

なお、上記実施の形態では、被嵌合部としての外周凹凸条部45が周方向に8度毎に設けられ、案内用嵌合部54Aと変形嵌合部54Bとが互いに周方向に60度毎に設けられている場合を述べたが、これに限るものではなく、被嵌合部としての外周凹凸条部45が周方向に8度よりも小さい角度や大きい角度毎に設けられ、嵌合部54が、互いに隣り合う周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度で設けられている複数の案内嵌合部54Aと、この案内用嵌合部54Aに対する周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度とは異なる角度で設けられて被嵌合部としての外周凹凸条部45に対して周方向に弾性変形しながら嵌合する変形嵌合部54Bと、を有する構成であればよい。   It should be noted that in the above-described embodiment, the outer peripheral concave-convex line portions 45 as fitted portions are provided at every 8 degrees in the circumferential direction, and the guide fitting portion 54A and the deformable fitting portion 54B are circumferentially at 60 degrees. Although the case where it is provided for each of the above is not limited to this, the outer peripheral concave-convex strip portion 45 as the fitted portion is provided at an angle smaller than 8 degrees or a large angle in the circumferential direction. A plurality of guide fitting portions 54A, in which the portions 54 are adjacent to each other in the circumferential direction at an angle that is an integral multiple of the angle at which the fitted portion is provided, and the guide fitting portions. A separation angle in the circumferential direction with respect to 54A is provided at an angle different from an angle that is an integral multiple of the angle at which the fitted portion is provided, and is set in the circumferential direction with respect to the outer peripheral uneven line portion 45 as the fitted portion. It suffices if the configuration includes a deformable fitting portion 54B that fits while elastically deforming.

また、上記実施の形態では、オーバーキャップ6の覆い部51に上面部分が平坦な天面部51Aが設けられているため、当該キャップ1を開けて上蓋5およびオーバーキャップ6を容器2から取り外した際に、オーバーキャップ6を安定してテーブルなどに置くことができる利点がある。しかしながら、これに限るものではなく、覆い部51の上面部分を半球形状に形成するなどしても差し支えない。   Further, in the above-described embodiment, since the cover 51 of the overcap 6 is provided with the top surface portion 51A having a flat upper surface portion, when the cap 1 is opened and the upper lid 5 and the overcap 6 are removed from the container 2. In addition, there is an advantage that the overcap 6 can be stably placed on a table or the like. However, the present invention is not limited to this, and the upper surface portion of the cover 51 may be formed in a hemispherical shape.

また、上記実施の形態では、中筒部52および保持用足部53が設けられている箇所に案内用嵌合部54Aや変形嵌合部54Bが設けられている場合を示したが、これに限るものではなく、中筒部52や、保持用足部53や案内用嵌合部54A、変形嵌合部54Bを別個に設けるように構成してもよい。   Further, in the above embodiment, the case where the guide fitting portion 54A and the deformation fitting portion 54B are provided at the location where the middle tubular portion 52 and the holding foot portion 53 are provided has been described. The present invention is not limited to this, and the middle tubular portion 52, the holding foot portion 53, the guide fitting portion 54A, and the deformation fitting portion 54B may be separately provided.

また、上記実施の形態では、上蓋5に被嵌合部としての外周凹凸条部45を設け、オーバーキャップ6に嵌合部としての案内用嵌合部54Aや変形嵌合部54Bを設けた場合を述べたが、これとは逆に、オーバーキャップ6に被嵌合部としての凹凸条部を設け、上蓋5に嵌合部としての案内用嵌合部や変形嵌合部を設けてもよい。   Further, in the above-described embodiment, in the case where the upper lid 5 is provided with the outer peripheral concave-convex ridge portion 45 as the fitted portion, and the overcap 6 is provided with the guide fitting portion 54A or the deformation fitting portion 54B as the fitting portion. However, conversely, the overcap 6 may be provided with the concave-convex strip portion as the fitted portion, and the upper lid 5 may be provided with the guide fitting portion or the deformable fitting portion as the fitting portion. .

1 キャップ
2 容器
3 口部
4 中栓
5 上蓋
6 オーバーキャップ
10 中栓本体部
11 弱化部
12 離脱部
16 ノズル部
20、31 ねじ部
33 離脱用内筒突条リブ(回転係合部)
35 離脱用外筒突条リブ(回転係合部)
45 外周凹凸条部(被嵌合部)
51 覆い部
53 保持用足部
54 嵌合部
54A 案内嵌合部
54B 変形嵌合部
56A、56B 傾斜面
DESCRIPTION OF SYMBOLS 1 Cap 2 Container 3 Mouth part 4 Inner plug 5 Upper lid 6 Overcap 10 Inner plug body part 11 Weakened part 12 Detachment part 16 Nozzle part 20, 31 Screw part 33 Inner cylinder rib for release (rotational engagement part)
35 Detachable outer cylinder rib (rotational engagement part)
45 Peripheral uneven ridges (fitted parts)
51 Covering Part 53 Holding Foot Part 54 Fitting Part 54A Guide Fitting Part 54B Deformation Fitting Part 56A, 56B Slope

Claims (5)

容器の口部に取り付けられる中栓と、回転することにより中栓に着脱自在な上蓋と、この上蓋に嵌合した状態で被せられて一体的に回転可能なオーバーキャップと、を備え、
中栓は、中栓本体部と、弱化部を介して中栓本体部から離脱可能に設けられた離脱部とを有し、
上蓋に、上蓋が回転された際に中栓の離脱部に係合して離脱部を中栓本体部から離脱させる回転係合部が設けられているキャップであって、
上蓋とオーバーキャップとには、互いに嵌合可能な被嵌合部と嵌合部とが設けられ、
前記被嵌合部は、上蓋の外周またはオーバーキャップの内周に、周方向に対して所定の角度毎に凹凸形状に形成され、
前記嵌合部は、互いに隣り合う周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度で設けられている複数の案内嵌合部と、この案内用嵌合部に対する周方向の離間角度が、前記被嵌合部が設けられている角度の整数倍の角度とは異なる角度で設けられて前記被嵌合部に対して周方向に弾性変形しながら嵌合する変形嵌合部と、を有する
ことを特徴とするキャップ。
An inner stopper attached to the mouth of the container, an upper lid that can be attached to and detached from the inner stopper by rotating, and an overcap that is fitted in the upper lid and is rotatable integrally.
The inner plug has an inner plug body portion and a detaching portion detachably provided from the inner plug body portion via a weakening portion,
A cap, wherein the upper lid is provided with a rotary engaging portion that engages with the detaching portion of the inner stopper when the upper lid is rotated and disengages the detaching portion from the inner stopper main body.
The upper lid and the overcap are provided with a fitted portion and a fitting portion that can be fitted to each other,
The fitted portion is formed in an uneven shape on the outer circumference of the upper lid or the inner circumference of the overcap at predetermined angles with respect to the circumferential direction,
The fitting portion is provided with a plurality of guide fitting portions, which are adjacent to each other in a circumferential direction at an angle that is an integral multiple of the angle at which the fitted portion is provided, and the guide fitting portion. The angle of separation in the circumferential direction with respect to the fitting portion is provided at an angle different from an integer multiple of the angle at which the fitting portion is provided, and the fitting portion is elastically deformed in the circumferential direction to fit the fitting portion. A cap having a deformable fitting portion.
前記被嵌合部は上蓋に形成され、
前記嵌合部はオーバーキャップに形成され、
オーバーキャップの天面部が上方に向くように配置した状態で、前記案内嵌合部の下端部が、前記変形嵌合部の下端部よりも下方の位置に形成されていることを特徴とする請求項1に記載のキャップ。
The fitted portion is formed on the upper lid,
The fitting portion is formed on the overcap,
The lower end portion of the guide fitting portion is formed at a position lower than the lower end portion of the deformation fitting portion in a state in which the top surface portion of the overcap is arranged to face upward. The cap according to Item 1.
前記嵌合部および前記被嵌合部は、上蓋およびオーバーキャップにおいて周方向に直交する直線方向に沿って延びる形状に形成され、
前記変形嵌合部の先端部に、先端ほど周方向寸法が小さくなるように傾斜面が形成されていることを特徴とする請求項1または2に記載のキャップ。
The fitting portion and the fitted portion are formed in a shape extending along a linear direction orthogonal to the circumferential direction in the upper lid and the overcap,
The cap according to claim 1 or 2, wherein an inclined surface is formed at a tip portion of the deformable fitting portion such that a circumferential dimension thereof becomes smaller toward the tip.
オーバーキャップに、上蓋に被せる覆い部と、この覆い部から下方に延びて径方向に弾性変形して、上蓋を保持可能な保持用足部が設けられていることを特徴とする請求項1〜3の何れか1項に記載のキャップ。   The overcap is provided with a cover portion to cover the upper lid, and a holding foot portion that extends downward from the cover portion and elastically deforms in the radial direction to hold the upper lid. The cap according to any one of 3 above. 前記請求項1〜4の何れか1項に記載のキャップの、上蓋に対してオーバーキャップを組み付けるキャップの組付け方法であって、
オーバーキャップを上蓋に対して周方向に直交する軸心方向に沿って打栓させることにより組み付け、
打栓時に、案内嵌合部が被嵌合部に嵌合した後に、変形嵌合部が被嵌合部に嵌合するように構成されていることを特徴とするキャップの組付け方法。
A method of assembling a cap according to any one of claims 1 to 4, wherein an overcap is assembled to an upper lid,
Assemble by capping the overcap along the axial direction orthogonal to the circumferential direction with respect to the upper lid,
A method of assembling a cap, characterized in that the guide fitting part is fitted to the fitted part and then the deformable fitting part is fitted to the fitted part at the time of capping.
JP2018193004A 2018-10-12 2018-10-12 cap Active JP7158013B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021187482A (en) * 2020-05-28 2021-12-13 株式会社吉野工業所 Plug opener cap

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5863145A (en) * 1994-05-10 1999-01-26 Georg Karl Geka-Brush Gmbh Container with a screwed cap for nail varnish, liquid mascara or the like
JP2008056334A (en) * 2006-09-04 2008-03-13 Fancl Corp Cap with seal opening mechanism and bottle container with cap
JP2012126402A (en) * 2010-12-13 2012-07-05 Mikasa Sangyo Kk Cap of container
JP2016008058A (en) * 2014-06-24 2016-01-18 三笠産業株式会社 cap
JP2018193088A (en) * 2017-05-17 2018-12-06 三笠産業株式会社 cap

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5863145A (en) * 1994-05-10 1999-01-26 Georg Karl Geka-Brush Gmbh Container with a screwed cap for nail varnish, liquid mascara or the like
JP2008056334A (en) * 2006-09-04 2008-03-13 Fancl Corp Cap with seal opening mechanism and bottle container with cap
JP2012126402A (en) * 2010-12-13 2012-07-05 Mikasa Sangyo Kk Cap of container
JP2016008058A (en) * 2014-06-24 2016-01-18 三笠産業株式会社 cap
JP2018193088A (en) * 2017-05-17 2018-12-06 三笠産業株式会社 cap

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021187482A (en) * 2020-05-28 2021-12-13 株式会社吉野工業所 Plug opener cap
JP7341618B2 (en) 2020-05-28 2023-09-11 株式会社吉野工業所 Uncork cap

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