JP6014344B2 - Resin container - Google Patents

Resin container Download PDF

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JP6014344B2
JP6014344B2 JP2012068312A JP2012068312A JP6014344B2 JP 6014344 B2 JP6014344 B2 JP 6014344B2 JP 2012068312 A JP2012068312 A JP 2012068312A JP 2012068312 A JP2012068312 A JP 2012068312A JP 6014344 B2 JP6014344 B2 JP 6014344B2
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protrusion
lid
engaged
resin container
engaging
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JP2013199296A (en
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植平 庄治
庄治 植平
明人 小野寺
明人 小野寺
佐藤 進
佐藤  進
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Daiwa Can Co Ltd
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Daiwa Can Co Ltd
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Description

本発明は、容器体に蓋体を固定可能な樹脂容器に関する。   The present invention relates to a resin container capable of fixing a lid to a container body.

樹脂材料により形成されたカップ状の容器体及び蓋体を備え、内部に液状、固形状の内容物を収容する樹脂容器が知られている。このような樹脂容器は、容器体に内容物を充填後、蓋体により容器体の開口を閉塞することで、その内部に内容物を密閉可能に構成されたものも知られている。   2. Description of the Related Art There is known a resin container that includes a cup-shaped container body and a lid body that are formed of a resin material, and that contains liquid or solid contents therein. Such a resin container is also known in which the contents are sealed in the interior of the container body by closing the opening of the container body after the container body is filled with the contents.

また、樹脂容器は、容器体から蓋体を除去し、容器体の開口から内容物を取り出す構成、及び、蓋体に口部及び口部を開閉可能なヒンジ扉等の開閉部を設け、当該開閉部を開状態として口部から内容物を取り出す構成等が知られている。   In addition, the resin container has a configuration in which the lid is removed from the container body and the contents are taken out from the opening of the container body, and an opening and closing portion such as a hinge door that can open and close the mouth portion is provided on the lid body. There is known a configuration in which contents are taken out from a mouth portion with an opening / closing portion in an open state.

このような樹脂容器は、容器体から蓋体を着脱可能、且つ、蓋体を容器体に固定可能とするために、容器体及び蓋体に互いに螺合可能な螺子部、及び、螺合後に蓋体の移動を規制する係合構造を設ける構成が知られている(例えば、特許文献1)。   Such a resin container has a screw part that can be screwed to the container body and the lid body, and a screw part that can be screwed to the container body in order to be able to detach the lid body from the container body and fix the lid body to the container body. A configuration is known in which an engagement structure that restricts movement of the lid is provided (for example, Patent Document 1).

この樹脂容器は、容器体の胴部が外力により弾性変形可能に形成され、この弾性変形により、樹脂容器内の液状物を圧搾可能に形成されている。また、樹脂容器は、容器体の胴部よりも小径の口部に雄螺子部及び複数の係合部が形成されるとともに、蓋体に容器体の雄螺子部と螺合する雌螺子部及び係合部と係合する複数の被係合部が形成されている。   In the resin container, the body portion of the container body is formed to be elastically deformable by an external force, and the liquid material in the resin container is formed to be squeezable by the elastic deformation. The resin container has a male screw part and a plurality of engaging parts formed in a mouth part having a smaller diameter than the body part of the container body, and a female screw part screwed into the male screw part of the container body and a lid body A plurality of engaged portions that are engaged with the engaging portions are formed.

このような樹脂容器は、小径の口部は外力により弾性変形せず、雄螺子部及び雌螺子部の螺合後、係合部及び被係合部が乗り上げて移動することで係合部及び被係合部が係合し、係合した係合部及び被係合部によって蓋体の回転が規制され、容器体に蓋体が固定される。   In such a resin container, the small-diameter mouth portion is not elastically deformed by an external force, and after the male screw portion and the female screw portion are screwed together, the engaging portion and the engaged portion ride on and move to move the engaging portion and The engaged portion is engaged, the rotation of the lid body is restricted by the engaged engaging portion and the engaged portion, and the lid body is fixed to the container body.

特開2001−97410号公報JP 2001-97410 A

上述した樹脂容器では、以下の問題があった。即ち、係合部及び被係合部は、互いに強制的に乗り上げて移動することで係合する構成であることから、樹脂材料で形成された係合部及び被係合部が塑性変形又は損傷する虞がある。係合部が変形すると、所定の係合力が得られず、容器体及び蓋体を固定することができなくなり、樹脂容器を繰り返し使用することができない虞がある。   The resin container described above has the following problems. That is, since the engaging portion and the engaged portion are configured to engage each other by forcibly climbing and moving, the engaging portion and the engaged portion formed of a resin material are plastically deformed or damaged. There is a risk of doing. If the engaging portion is deformed, a predetermined engaging force cannot be obtained, the container body and the lid body cannot be fixed, and the resin container may not be used repeatedly.

また、蓋体を容器体に螺合して、係合部及び被係合部が、互いに強制的に乗り上げて係合する際に高いトルクが必要となると、蓋体の周壁部が略楕円形状に変形する虞がある。係合時に蓋体の周壁部が変形すると、複数形成された係合部及び被係合部の一部が係合せず、蓋体を容器体に固定できない虞や、蓋体の周壁部の変形が維持され、蓋体により容器体を密閉できない虞がある。   In addition, when a high torque is required when the lid body is screwed into the container body and the engaging portion and the engaged portion are forced to ride on and engage with each other, the peripheral wall portion of the lid body is substantially elliptical. There is a risk of deformation. If the peripheral wall portion of the lid body is deformed at the time of engagement, a plurality of engaging portions and a part of the engaged portion may not be engaged, and the lid body may not be fixed to the container body, or the peripheral wall portion of the lid body may be deformed. Is maintained, and there is a possibility that the container body cannot be sealed by the lid.

そこで本発明は、蓋体を容器体に繰り返し固定可能な樹脂容器を提供することを目的とする。   Then, an object of this invention is to provide the resin container which can fix a cover body to a container body repeatedly.

前記課題を解決し目的を達成するために、本発明の樹脂容器は、次のように構成されている。   In order to solve the problems and achieve the object, the resin container of the present invention is configured as follows.

本発明の一態様として、一方の端側が閉塞され、他方の端側が開口する円筒状に形成された胴部材、並びに、胴部材の端部に設けられ、外力により弾性変形可能な円筒状の口径部、前記口径部の外面に形成された雄螺子部、前記口径部の外周面に前記雄螺子部及び前記胴部材と離間して設けられ、前記口径部の周方向に等間隔に前記雄螺子部よりも高く突出して複数形成された係合部、及び、前記係合部と離間して形成され前記口径部及び胴部材を連続する連続部を具備する口部を有する容器体と、前記口径部を挿入可能な有底円筒状に形成され、その内周面に前記雄螺子部と螺合可能に形成された雌螺子部、及び、その内周面であって、その端部及び前記雌螺子部の間に設けられ、その周方向に等間隔に前記雌螺子部よりも低く突出して複数形成された被係合部を具備する蓋体と、を備える。   As one aspect of the present invention, a cylindrical member that is closed at one end and opened at the other end, and a cylindrical aperture that is provided at the end of the cylindrical member and can be elastically deformed by an external force A male screw part formed on the outer surface of the caliber part, and provided on the outer peripheral surface of the caliber part so as to be spaced apart from the male screw part and the body member, and the male screw at equal intervals in the circumferential direction of the caliber part A container body having a plurality of engaging portions that protrude higher than the portion, a mouth portion that is formed apart from the engaging portion and includes a continuous portion that continues the aperture portion and the body member, and the aperture A female screw part formed on the inner peripheral surface of the male screw part so as to be screwable with the male screw part, and an inner peripheral surface of the female screw part, the end part and the female It is provided between the screw parts and protrudes lower than the female screw part at equal intervals in the circumferential direction. Comprising a lid having a engaged portion formed, a.

本発明によれば、蓋体を容器体に繰り返し固定可能な樹脂容器を提供することが可能となる。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the resin container which can fix a cover body to a container body repeatedly.

本発明の第1の実施形態に係る樹脂容器の構成を示す斜視図。The perspective view which shows the structure of the resin container which concerns on the 1st Embodiment of this invention. 同樹脂容器に用いられる容器体の構成を示す側面図。The side view which shows the structure of the container body used for the resin container. 同容器体の構成を示す上面図。The top view which shows the structure of the container body. 同容器体の要部構成を示す断面図。Sectional drawing which shows the principal part structure of the container body. 同容器体の要部構成を示す断面図。Sectional drawing which shows the principal part structure of the container body. 同樹脂容器に用いられる蓋体の構成を示す下面図。The bottom view which shows the structure of the cover body used for the resin container. 同蓋体の構成を示す断面図。Sectional drawing which shows the structure of the cover body. 同蓋体の要部構成を示す断面図。Sectional drawing which shows the principal part structure of the cover body. 同蓋体の要部構成を示す断面図。Sectional drawing which shows the principal part structure of the cover body. 同樹脂容器の容器体及び蓋体の使用の一例を示す断面図。Sectional drawing which shows an example of use of the container body and cover body of the resin container. 同容器体及び蓋体の使用の一例を示す断面図。Sectional drawing which shows an example of use of the container body and a cover body. 本発明の第2の実施形態に係る樹脂容器に用いられる容器体の構成を示す側面図。The side view which shows the structure of the container body used for the resin container which concerns on the 2nd Embodiment of this invention. 同容器体の要部構成を示す断面図。Sectional drawing which shows the principal part structure of the container body. 同容器体の要部構成を示す断面図。Sectional drawing which shows the principal part structure of the container body. 同樹脂容器に用いられる蓋体の構成を示す断面図。Sectional drawing which shows the structure of the cover body used for the resin container. 同蓋体の構成を示す断面図。Sectional drawing which shows the structure of the cover body. 同蓋体の構成を示す断面図。Sectional drawing which shows the structure of the cover body. 本発明の第3の実施形態に係る樹脂容器の構成を示す側面図。The side view which shows the structure of the resin container which concerns on the 3rd Embodiment of this invention.

(第1の実施形態)
以下、本発明の第1の実施形態に係る樹脂容器1の構成を、図1乃至図11を用いて説明する。
(First embodiment)
Hereinafter, the structure of the resin container 1 which concerns on the 1st Embodiment of this invention is demonstrated using FIG. 1 thru | or FIG.

図1は、本発明の第1の実施形態に係る樹脂容器1の構成を示す斜視図、図2は樹脂容器1に用いられる容器体2の構成を示す側面図、図3は容器体2の構成を示す上面図、図4は容器体2の要部構成、具体的には図2中IV−IV断面の構成を示す断面図、図5は容器体2の要部構成、具体的には図4中V−V断面の構成を示す断面図、図6は樹脂容器1に用いられる蓋体3の構成を示す下面図、図7は蓋体3の構成を図6中VII−VII断面で示す断面図、図8は蓋体3の要部構成、具体的には蓋体3の周壁部42の構成を拡大して示す断面図、図9は蓋体3の要部構成、具体的には図8中IX−IX断面で示す断面図、図10は樹脂容器1の容器体2及び蓋体3の使用の一例、具体的には、容器体2及び蓋体3の固定時の構成を示す断面図、図11は容器体2及び蓋体3の使用の一例、具体的には、容器体2及び蓋体3の固定時の構成を示す断面図である。   FIG. 1 is a perspective view showing a configuration of a resin container 1 according to the first embodiment of the present invention, FIG. 2 is a side view showing a configuration of a container body 2 used in the resin container 1, and FIG. FIG. 4 is a top view showing the configuration, FIG. 4 is a cross-sectional view showing the configuration of the main part of the container body 2, specifically, the IV-IV cross section in FIG. 2, and FIG. 4 is a cross-sectional view showing the configuration of the VV cross section in FIG. 4, FIG. 6 is a bottom view showing the configuration of the lid 3 used for the resin container 1, and FIG. 7 is a cross-sectional view of the configuration of the lid 3 in the VII-VII cross section in FIG. FIG. 8 is a cross-sectional view showing an enlarged structure of a main part of the lid body 3, specifically, a configuration of the peripheral wall portion 42 of the lid body 3, and FIG. 8 is a cross-sectional view taken along the line IX-IX in FIG. 8, and FIG. 10 is an example of the use of the container body 2 and the lid body 3 of the resin container 1, specifically, the configuration when the container body 2 and the lid body 3 are fixed. Show Elevational view, an example of the use of 11 container body 2 and the cover 3, specifically, is a sectional view showing a fixed-time configuration of the container body 2 and the lid 3.

図1に示すように、樹脂容器1は、有底円筒状のカップ形状に形成された容器体2と、容器体2の開口を閉塞する蓋体3と、を備えている。樹脂容器1は、内容物として液状物を容器体2内に充填(収容)し、且つ、蓋体3により容器体2を密封可能に形成されている。樹脂容器1は、当該密閉により、液状物を容器体2及び蓋体3により形成される空間に保持可能、且つ、保持した内容物を混合可能な、所謂、広口容器と呼ばれる包装容器である。ここで、内容物は特に限定されるものではなく、液体、粉体、固体、ゼリー状物等を使用可能である。   As shown in FIG. 1, the resin container 1 includes a container body 2 formed in a bottomed cylindrical cup shape, and a lid body 3 that closes the opening of the container body 2. The resin container 1 is formed such that a liquid material is filled (contained) in the container body 2 as the contents, and the container body 2 can be sealed by the lid body 3. The resin container 1 is a so-called wide-mouthed packaging container that can hold a liquid material in a space formed by the container body 2 and the lid body 3 and can mix the held contents by the sealing. Here, the contents are not particularly limited, and liquids, powders, solids, jellies, and the like can be used.

図1乃至図5に示すように、容器体2は、胴部材10と、底部材11と、口部12と、を備えている。容器体2は、樹脂材料、例えば、ポリエチレン(PE)及びポリプロピレン(PP)等のオレフィン系樹脂、ポリエチレンテレフタレート(PET)等のポリエステル系樹脂、又は、スチレン系樹脂等を使用し、射出ブロー成形により胴部材10、底部材11及び口部12が一体に形成されている。   As shown in FIGS. 1 to 5, the container body 2 includes a body member 10, a bottom member 11, and a mouth portion 12. The container body 2 uses a resin material, for example, an olefin resin such as polyethylene (PE) and polypropylene (PP), a polyester resin such as polyethylene terephthalate (PET), or a styrene resin, by injection blow molding. The body member 10, the bottom member 11, and the mouth part 12 are integrally formed.

図1及び図2に示すように、胴部材10は、その軸心方向の口部12側が底部材11側に比べて若干大径の円筒状に形成されている。胴部材10は、一方の端部に底部材11が形成され、他方の端部が開口する口部12が形成された、有底円筒状に形成されている。   As shown in FIGS. 1 and 2, the trunk member 10 is formed in a cylindrical shape having a slightly larger diameter on the mouth portion 12 side in the axial direction than the bottom member 11 side. The body member 10 is formed in a bottomed cylindrical shape in which a bottom member 11 is formed at one end portion and a mouth portion 12 having an opening at the other end portion is formed.

胴部材10は、例えば、その口径が50mm〜150mmに、その肉厚が1mm〜2mmに形成されている。胴部材10は、その外周面に印加される外力により、弾性変形可能に形成されている。   For example, the body member 10 has a diameter of 50 mm to 150 mm and a thickness of 1 mm to 2 mm. The body member 10 is formed to be elastically deformable by an external force applied to the outer peripheral surface thereof.

図2に破線で示すように、底部材11は、胴部材10の一方の端部に一体に形成される。底部材11は、胴部材10に連続して口部12側に向かって突出して湾曲する曲面状に形成されている。   As shown by a broken line in FIG. 2, the bottom member 11 is integrally formed at one end of the body member 10. The bottom member 11 is formed in a curved surface that is continuous with the body member 10 and protrudes toward the mouth portion 12 to be curved.

口部12は、胴部材10の他方の端部に一体に形成され、胴部材10の端部を開口させる。図1乃至図5に示すように、口部12は、胴部材10と連続して形成された円筒状の口径部21と、口径部21の外周面に設けられた雄螺子部22と、口径部21の外周面であって雄螺子部22と胴部材10との間に設けられた係合部23と、口径部21及び胴部材10を連続させる連続部24と、を備えている。口部12は、その外面に印加される外力により、弾性変形可能に形成されている。   The mouth portion 12 is formed integrally with the other end portion of the body member 10 and opens the end portion of the body member 10. As shown in FIGS. 1 to 5, the mouth portion 12 includes a cylindrical bore portion 21 formed continuously with the body member 10, a male screw portion 22 provided on the outer peripheral surface of the bore portion 21, and a bore diameter. The outer peripheral surface of the part 21 is provided with an engaging part 23 provided between the male screw part 22 and the body member 10, and a continuous part 24 that continues the aperture part 21 and the body member 10. The mouth portion 12 is formed to be elastically deformable by an external force applied to the outer surface thereof.

口径部21は、胴部材10と同軸上に形成されている。口径部21は、その内径が、胴部材10と同一又は若干小径に形成されるとともに、その外径が、胴部材10の外径と略同一径又は若干小径に形成される。また、口径部21は、その肉厚が、胴部材10の肉厚と略同一又は若干厚肉に形成されている。   The aperture portion 21 is formed coaxially with the body member 10. The bore portion 21 has an inner diameter that is the same as or slightly smaller than that of the body member 10, and an outer diameter that is substantially the same as or slightly smaller than the outer diameter of the body member 10. Further, the diameter portion 21 is formed so that the thickness thereof is substantially the same as or slightly thicker than the thickness of the body member 10.

具体的には、図1及び図2に示すように、口径部21は、その外径が胴部材10の端部の外径よりも若干小径に形成される。また、口径部21は、その端部に胴部材10と連続する連続部24が一体に形成される。口径部21は、例えば、その口径が50mm〜150mmに、その肉厚が1mm〜2mmに形成されている。口径部21は、その外周面に印加される外力により、弾性変形可能に形成されている。   Specifically, as shown in FIGS. 1 and 2, the diameter portion 21 is formed so that its outer diameter is slightly smaller than the outer diameter of the end portion of the body member 10. Further, the caliber portion 21 is integrally formed with a continuous portion 24 continuous with the body member 10 at an end portion thereof. For example, the diameter portion 21 has a diameter of 50 mm to 150 mm and a thickness of 1 mm to 2 mm. The aperture 21 is formed to be elastically deformable by an external force applied to its outer peripheral surface.

雄螺子部22は、口径部21の外面に一体に形成されている。雄螺子部22は、多条螺子、例えば四条螺子であって、口径部21の外周面の半円周に渡って形成された4つの螺子山22aにより構成される。   The male screw portion 22 is integrally formed on the outer surface of the aperture portion 21. The male screw portion 22 is a multi-threaded screw, for example, a four-threaded screw, and includes four screw threads 22 a formed over the semicircular circumference of the outer peripheral surface of the aperture portion 21.

係合部23は、口径部21に2つ設けられる。具体的には、2つの係合部23は、口径部21の、雄螺子部22及び連続部24と離間の間であって、且つ、雄螺子部22の隣り合う螺子山22aの下端部の間に等間隔、換言すると、口径部21の周方向の対称位置に設けられる。また、係合部23は、雄螺子部22及び連続部24と所定の距離だけ離間して配置される。係合部23を設けた、雄螺子部22及び連続部24の間の壁面は、その外周面に印加される外力により、弾性変形可能に形成されている。   Two engaging portions 23 are provided in the aperture portion 21. Specifically, the two engaging portions 23 are spaced apart from the male screw portion 22 and the continuous portion 24 of the caliber portion 21, and at the lower end portion of the screw thread 22 a adjacent to the male screw portion 22. They are provided at equal intervals between them, in other words, at symmetrical positions in the circumferential direction of the aperture 21. Further, the engaging portion 23 is disposed at a predetermined distance from the male screw portion 22 and the continuous portion 24. The wall surface between the male screw portion 22 and the continuous portion 24 provided with the engaging portion 23 is formed to be elastically deformable by an external force applied to the outer peripheral surface thereof.

係合部23は、口径部21から、突出して形成された突起部である。具体的には、係合部23は、所定の間隔を有して配置された第1突起部31及び第2突起部32をそれぞれ備えている。   The engaging portion 23 is a protruding portion that protrudes from the aperture portion 21. Specifically, the engaging portion 23 includes a first protrusion 31 and a second protrusion 32 that are arranged with a predetermined interval.

第1突起部31は、雄螺子部22の螺子山22aよりもその高さが高く形成されている。第1突起部31は、第2突起部32の雄螺子部22及び蓋体3の後述する雌螺子部46の螺合方向の一次側に配置されている。換言すると、雄螺子部22の先端側を一次側とし雄螺子部22の下端側を二次側とすると、第2突起部32の一次側に配置されている。   The first protrusion 31 is formed to have a height higher than that of the screw thread 22 a of the male screw part 22. The first protrusion 31 is arranged on the primary side in the screwing direction of the male screw part 22 of the second protrusion part 32 and the female screw part 46 described later of the lid 3. In other words, when the leading end side of the male screw part 22 is the primary side and the lower end side of the male screw part 22 is the secondary side, the male screw part 22 is disposed on the primary side of the second protrusion 32.

即ち、第1突起部31は、容器体2に螺合される蓋体3の後述する被係合部48と、第2突起部32よりも先に対向し、当接可能に配置される。第1突起部31は、胴部材10の軸心方向に沿って形成された三角柱状に形成されている。   That is, the first projecting portion 31 is disposed so as to be opposed to an engaged portion 48 (to be described later) of the lid body 3 that is screwed into the container body 2 before the second projecting portion 32 and to come into contact therewith. The first projecting portion 31 is formed in a triangular prism shape formed along the axial direction of the body member 10.

第1突起部31は、図5に示すように、胴部材10の軸心方向に直交する方向の断面形状が、頂部が曲面で連続する三角形状に形成されている。第1突起部31は、その一次側の側面及び二次側の側面が口径部21の接平面に対して45度好ましくは45度よりも小さい角度で傾斜して形成されている。   As shown in FIG. 5, the first projecting portion 31 has a cross-sectional shape in a direction orthogonal to the axial direction of the body member 10 formed in a triangular shape in which the top portion is continuous with a curved surface. The first protrusion 31 is formed such that the primary side surface and the secondary side surface thereof are inclined with respect to the tangential plane of the aperture 21 at an angle of 45 degrees, preferably less than 45 degrees.

第2突起部32は、雄螺子部22の螺子山22aよりもその高さが高く形成されている。また、第2突起部32は、第1突起部31よりもその高さが高く形成されている。第2突起部32は、第1突起部31の二次側に、第1突起部31と所定の間隔、具体的には、図11に示すように、後述する被係合部48が位置可能な隙間を有して配置される。   The second protrusion 32 is formed to have a height higher than the thread 22a of the male screw portion 22. The second protrusion 32 is formed to have a height higher than that of the first protrusion 31. The second protrusion 32 has a predetermined distance from the first protrusion 31 on the secondary side of the first protrusion 31, specifically, as shown in FIG. Arranged with a large gap.

第2突起部32は、図5に示すように、その一次側の側面が、口径部21の接平面に対して45度よりも大きく、且つ、被係合部48の当接する側面と略同一角度に形成された四角柱状に形成されている。また、第2突起部32は、その二次側の側面が、口径部21の接平面に対して45度よりも小さく、且つ、その上面と曲面により連続して形成されている。   As shown in FIG. 5, the second projecting portion 32 has a primary side surface larger than 45 degrees with respect to the tangent plane of the aperture portion 21 and substantially the same as the side surface with which the engaged portion 48 abuts. It is formed in the shape of a square column formed at an angle. The second protrusion 32 has a secondary side surface that is smaller than 45 degrees with respect to the tangent plane of the aperture 21 and is continuously formed by its upper surface and curved surface.

連続部24は、胴部材10よりも小径であって、且つ、口径部21よりも大径に形成された周面部35と、胴部材10及び周面部35を曲面で連続させる第1稜部36と、周面部35及び口径部21を曲面で連続する第2稜部37と、を備えている。周面部35及び第1稜部36は、蓋体3の端部と所定の隙間を有して対向可能に形成されている。   The continuous portion 24 is smaller in diameter than the body member 10 and larger in diameter than the aperture portion 21, and a first ridge portion 36 that connects the body member 10 and the peripheral surface portion 35 with a curved surface. And a second ridge 37 that continues the peripheral surface 35 and the aperture 21 with a curved surface. The peripheral surface portion 35 and the first ridge portion 36 are formed so as to be opposed to the end portion of the lid body 3 with a predetermined gap.

具体的には、周面部35は、口径部21からその外周面までの高さが、口径部21から係合部23、さらに言えば第2突起部32の先端までの高さと同一の高さ、又は、第2突起部32よりも高く形成されている。周面部35は、蓋体3が容器体2に固定される際に、蓋体3の端部、具体的には後述する薄肉部47と対向可能に形成されている。周面部35は、蓋体3の端部の弾性変形時に、蓋体3、さらに言えば薄肉部47と当接することで、蓋体3の変形を規制する規制部である。   Specifically, the peripheral surface portion 35 has the same height from the caliber portion 21 to the outer peripheral surface thereof as the height from the caliber portion 21 to the engaging portion 23, more specifically, the tip of the second protrusion 32. Alternatively, it is formed higher than the second protrusion 32. When the lid 3 is fixed to the container body 2, the peripheral surface portion 35 is formed so as to be able to face an end of the lid 3, specifically, a thin portion 47 described later. The peripheral surface portion 35 is a regulating portion that regulates deformation of the lid body 3 by contacting the lid body 3, that is, the thin-walled portion 47, when the end portion of the lid body 3 is elastically deformed.

なお、このような容器体2は、射出ブロー成形又はダイレクトブロー成形により形成される。射出ブロー成形では、先ず、容器体2は、連続部24よりも上方の口部12が形成された有底パリソンが射出成形により形成される。容器体2は、有底パリソン形成後、胴部材10、底部材11及び口部12の連続部24が、胴部材10の軸心方向に沿って分割面が形成され、当該軸心方向に直交する方向に分割可能な金型を用いてブロー成形により形成される。ダイレクトブロー成形では、容器体2は、胴部材10の軸心方向に直行する方向に分割可能な金型を用いて形成される。なお、射出ブロー成形又はダイレクトブロー成形で、金型は、金型の分割方向、さらに言えば、胴部材10の軸心を通る金型の分割方向上に係合部23が位置するように、その内面形状が形成される。   In addition, such a container body 2 is formed by injection blow molding or direct blow molding. In the injection blow molding, first, the container body 2 is formed by injection molding with a bottomed parison in which the mouth portion 12 above the continuous portion 24 is formed. In the container body 2, after forming the bottomed parison, the continuous portion 24 of the body member 10, the bottom member 11, and the mouth portion 12 is formed with a dividing surface along the axial direction of the body member 10, and is orthogonal to the axial direction. It is formed by blow molding using a mold that can be divided in the direction to be cut. In the direct blow molding, the container body 2 is formed using a mold that can be divided in a direction perpendicular to the axial direction of the body member 10. In the injection blow molding or direct blow molding, the mold is arranged so that the engaging portion 23 is positioned on the mold dividing direction, more specifically, on the mold dividing direction passing through the axis of the body member 10. The inner surface shape is formed.

図1、及び、図6乃至図9に示すように、蓋体3は、口径部21の高さと略同一高さに形成された有底円筒状に形成されている。具体的には、蓋体3は、円盤状の天部41と、天部41から延設された円筒状の周壁部42と、を備えている。   As shown in FIG. 1 and FIGS. 6 to 9, the lid body 3 is formed in a bottomed cylindrical shape formed at substantially the same height as the height of the aperture 21. Specifically, the lid 3 includes a disk-shaped top part 41 and a cylindrical peripheral wall part 42 extending from the top part 41.

天部41は、その内面、換言すると、口径部21と対向する面に、口径部21の端部と当接するシール部44を備えている。シール部44は、例えば、天部41の内面から円環状(円筒状)に突出する突出部であって、弾性変形可能に形成されている。   The top portion 41 includes a seal portion 44 that comes into contact with the end portion of the caliber portion 21 on the inner surface, in other words, the surface facing the caliber portion 21. The seal portion 44 is, for example, a protruding portion that protrudes in an annular shape (cylindrical shape) from the inner surface of the top portion 41 and is formed to be elastically deformable.

シール部44は、その先端面及び外周面の稜部に、その軸心方向に対して45度よりも小さい傾斜角度で傾斜する面取部44aが形成されている。なお、面取部44aは、口径部21の内周面が、シール部44の外周側に位置するように、口径部21の移動を案内する案内部である。   The seal portion 44 is formed with chamfered portions 44a that are inclined at an inclination angle smaller than 45 degrees with respect to the axial direction at the ridge portions of the front end surface and the outer peripheral surface. The chamfered portion 44 a is a guide portion that guides the movement of the caliber portion 21 so that the inner peripheral surface of the caliber portion 21 is positioned on the outer peripheral side of the seal portion 44.

周壁部42は、天部41と連続する稜部に口径部21の端面と当接可能に形成された当接部45と、その内周面に形成された雌螺子部46と、その内周面であって、雌螺子部46とその先端との間に設けられた薄肉部47と、薄肉部47に設けられた被係合部48と、を備えている。周壁部42は、例えば、その肉厚が1mm〜2mmに形成されている。なお、周壁部42の肉厚は、口径部21の肉厚よりも若干厚く形成されている。   The peripheral wall portion 42 includes a contact portion 45 formed so as to be able to contact the end surface of the caliber portion 21 at a ridge portion continuous with the top portion 41, a female screw portion 46 formed on the inner peripheral surface thereof, and an inner periphery thereof. A thin portion 47 provided between the female screw portion 46 and the tip thereof, and an engaged portion 48 provided on the thin portion 47. The peripheral wall portion 42 is formed with a thickness of 1 mm to 2 mm, for example. The wall thickness of the peripheral wall portion 42 is formed slightly thicker than the wall thickness of the aperture portion 21.

当接部45は、天部41及び周壁部42の稜部に設けられ、天部41から円環状に突出して形成されている。当接部45は、雄螺子部22及び雌螺子部46が螺合したときに、口径部21の端面と当接可能に形成されている。当接部45は、当該当接により、口径部21と当接することで、容器体2及び蓋体3の移動を規制可能に形成されている。   The contact portion 45 is provided at the ridge portion of the top portion 41 and the peripheral wall portion 42 and is formed to project from the top portion 41 in an annular shape. The contact portion 45 is formed so as to be able to contact the end surface of the aperture portion 21 when the male screw portion 22 and the female screw portion 46 are screwed together. The abutting part 45 is formed so as to be able to regulate the movement of the container body 2 and the lid body 3 by abutting the caliber part 21 by the abutting.

雌螺子部46は、雄螺子部22と螺合可能に形成されている。雌螺子部46は、多条螺子、例えば、四条螺子であって、周壁部42の内周面の半円周に渡って形成された4つの螺子山46aにより構成される。   The female screw portion 46 is formed so as to be screwable with the male screw portion 22. The female screw portion 46 is a multi-thread screw, for example, a four-thread screw, and is configured by four screw threads 46 a formed over the semicircular circumference of the inner peripheral surface of the peripheral wall portion 42.

薄肉部47は、周壁部42の下端部、具体的には、周壁部42の螺子山46aの二次側の端部(下端部)よりも先端側の内径が大径に形成されることで形成されている。薄肉部47は、蓋体3が容器体2に螺合した際に、係合部23、係合部23から胴部材10側の口径部21、第2稜部37、及び、周面部35と対向可能に形成されている。薄肉部47は、その内径が、周面部35の外径よりも0.1mm〜1mm程度に大径に形成されている。即ち、薄肉部47は、容器体2に蓋体3を螺合時及び固定時に、周面部35と、0.05mm〜0.5mm程度の隙間を介して対向する。   The thin-walled portion 47 is formed such that the inner diameter on the distal end side is larger than the lower end portion of the peripheral wall portion 42, specifically, the secondary end portion (lower end portion) of the screw thread 46 a of the peripheral wall portion 42. Is formed. When the lid 3 is screwed into the container body 2, the thin portion 47 includes the engaging portion 23, the diameter portion 21 on the body member 10 side from the engaging portion 23, the second ridge portion 37, and the peripheral surface portion 35. It is formed to be able to face each other. The thin portion 47 has an inner diameter that is larger than the outer diameter of the peripheral surface portion 35 by about 0.1 mm to 1 mm. That is, the thin portion 47 faces the peripheral surface portion 35 with a gap of about 0.05 mm to 0.5 mm when the lid 3 is screwed and fixed to the container body 2.

被係合部48は、薄肉部47の内周面から突出して4つ形成されている。具体的には、被係合部48は、薄肉部47内周面の螺子山46aの下端側に隣接する部位に突出して設けられる。被係合部48は、雌螺子部46の隣り合う螺子山46aの下端部間にそれぞれ等間隔、換言すると、周壁部42の周方向の対称位置に4つ設けられる。   Four engaged portions 48 are formed so as to protrude from the inner peripheral surface of the thin portion 47. Specifically, the engaged portion 48 is provided so as to protrude from a portion adjacent to the lower end side of the thread 46a on the inner peripheral surface of the thin portion 47. Four engaged portions 48 are provided at equal intervals between the lower end portions of the adjacent screw threads 46 a of the female screw portion 46, in other words, at four symmetrical positions in the circumferential direction of the peripheral wall portion 42.

被係合部48は、薄肉部47の内周面から周壁部42の内周面と面位置まで突出して形成されている。被係合部48は、例えば、その側面が、第2突起部32の一次側の側面と略同一角度に形成されるとともに、周壁部42の軸心方向に沿って形成された台形柱状に形成されている。   The engaged portion 48 is formed so as to protrude from the inner peripheral surface of the thin portion 47 to the inner peripheral surface and the surface position of the peripheral wall portion 42. The engaged portion 48 has, for example, a side surface formed at substantially the same angle as the primary side surface of the second projecting portion 32 and a trapezoidal columnar shape formed along the axial direction of the peripheral wall portion 42. Has been.

なお、このような蓋体3は、射出成形により、周壁部42の軸心方向に沿って分割してなる金型により形成される。   Such a lid 3 is formed by a mold that is divided along the axial direction of the peripheral wall portion 42 by injection molding.

このように構成された樹脂容器1は、容器体2の口部12に蓋体3の周壁部42の内周面を対向させるとともに、蓋体3を回転させ、雄螺子部22及び雌螺子部46を螺合させて、係合部23及び被係合部48を係合させることで、容器体2に蓋体3を固定する。これにより、樹脂容器1は、その内部空間が密閉される。   The resin container 1 configured as described above is configured so that the inner peripheral surface of the peripheral wall portion 42 of the lid body 3 is opposed to the mouth portion 12 of the container body 2 and the lid body 3 is rotated so that the male screw portion 22 and the female screw portion. The lid 3 is fixed to the container body 2 by screwing 46 and engaging the engaging portion 23 and the engaged portion 48. Thereby, as for the resin container 1, the internal space is sealed.

具体的に説明すると、先ず、容器体2の口部12を蓋体3の周壁部42の開口に挿入する。これにより、容器体2の口部12の一部が蓋体3内に挿入され、雄螺子部22の螺子山22aの上端側と雌螺子部46の螺子山46aの下端側が当接する。   Specifically, first, the mouth portion 12 of the container body 2 is inserted into the opening of the peripheral wall portion 42 of the lid body 3. Thereby, a part of the mouth portion 12 of the container body 2 is inserted into the lid body 3, and the upper end side of the screw thread 22 a of the male screw part 22 and the lower end side of the screw thread 46 a of the female screw part 46 abut.

この状態で、蓋体3を螺合方向に回転させると、雄螺子部22及び雌螺子部46が螺合する。継続して蓋体3を螺合方向に回転させると、蓋体3の被係合部48の一次側の側面が、容器体2の係合部23の第1突起部31の一次側の側面と当接し、蓋体3の移動が規制される。   In this state, when the lid 3 is rotated in the screwing direction, the male screw portion 22 and the female screw portion 46 are screwed together. When the lid 3 is continuously rotated in the screwing direction, the primary side surface of the engaged portion 48 of the lid 3 is the primary side surface of the first protrusion 31 of the engaging portion 23 of the container body 2. And the movement of the lid 3 is restricted.

この状態で、さらに蓋体3を螺合方向に回転させると、当該回転方向の力により被係合部48の一次側の側面及び第1突起部31の一次側の側面が互いに押圧する。このとき、容器体2及び蓋体3は、2箇所の係合部23及び被係合部48にて互いに押圧することから、容器体2は、胴部材10の軸心を中心に、口部12口径部21が対称形状の略楕円形状となるように押圧方向に弾性変形する。   When the lid 3 is further rotated in the screwing direction in this state, the primary side surface of the engaged portion 48 and the primary side surface of the first protrusion 31 are pressed against each other by the force in the rotational direction. At this time, since the container body 2 and the lid body 3 are pressed against each other by the two engaging portions 23 and the engaged portion 48, the container body 2 has the mouth portion around the axis of the body member 10. The 12-caliber portion 21 is elastically deformed in the pressing direction so as to have a substantially elliptical shape having a symmetrical shape.

具体的には、図11に二点鎖線で示すように、口径部21の接平面に対して傾斜する第1突起部31の側面が被係合部48により押圧されることで、回転方向の力は、その一部が口径部21の軸心に向かう力に分散される。この分散された口径部21の軸心に向かう方向の力により、口部12は、口径部21の開口形状が、係合部23から軸心までの距離が短い略楕円形状に弾性変形する。   Specifically, as shown by a two-dot chain line in FIG. 11, the side surface of the first protrusion 31 that is inclined with respect to the tangential plane of the aperture 21 is pressed by the engaged portion 48, thereby A part of the force is distributed to a force directed toward the axial center of the aperture 21. Due to the force in the direction toward the axial center of the calibrated portion 21, the mouth portion 12 is elastically deformed so that the opening shape of the caliber portion 21 is substantially elliptical with a short distance from the engaging portion 23 to the axial center.

なお、蓋体3は、第1突起部31の側面及び被係合部48の側面の押圧により、口径部21と同様に、薄肉部47を含む周壁部42が楕円形状に若干弾性変形する。しかし、蓋体3は、当該変形時に、薄肉部47の内周面が周面部35に当接し、周壁部42の変形量が規制される。これにより、蓋体3は、その周壁部42の開口形状が、円形状を維持した状態で回転することとなる。   Note that, in the lid 3, the peripheral wall portion 42 including the thin portion 47 is slightly elastically deformed into an elliptical shape by pressing the side surface of the first projecting portion 31 and the side surface of the engaged portion 48, similarly to the aperture portion 21. However, when the lid 3 is deformed, the inner peripheral surface of the thin portion 47 abuts on the peripheral surface portion 35, and the deformation amount of the peripheral wall portion 42 is restricted. Thereby, the cover body 3 will rotate in the state which the opening shape of the surrounding wall part 42 maintained circular shape.

これにより、被係合部48は、第1突起部31を過度に押圧することなく、第1突起部31の一次側の側面に沿って移動し、第1突起部31及び第2突起部32間に位置することで、被係合部48が係合部23に係合することとなる。即ち、被係合部48は、蓋体3の螺合及び螺脱方向への回転時に、第1突起部31の二次側の側面又は第2突起部32の一次側の側面と当接することで、係合部23と係合する。   Accordingly, the engaged portion 48 moves along the primary side surface of the first protrusion 31 without excessively pressing the first protrusion 31, and the first protrusion 31 and the second protrusion 32. By being positioned in between, the engaged portion 48 is engaged with the engaging portion 23. That is, the engaged portion 48 contacts the secondary side surface of the first protrusion 31 or the primary side surface of the second protrusion 32 when the lid 3 is screwed and rotated in the screwing direction. Thus, the engaging portion 23 is engaged.

また、図10に示すように、口径部21の先端部が、シール部44と周壁部42との間に、シール部44及び当接部45に当接して位置することで、蓋体3は、容器体2に固定されるとともに、容器体2を密閉する。   Further, as shown in FIG. 10, the distal end portion of the aperture portion 21 is positioned between the seal portion 44 and the peripheral wall portion 42 in contact with the seal portion 44 and the contact portion 45, so that the lid 3 is The container body 2 is sealed while being fixed to the container body 2.

なお、蓋体3が容器体2を密閉した状態で、蓋体3を螺合する方向にさらに回転させると、口径部21の先端面が当接部45と当接するとともに、被係合部48が第2突起部32の一次側の側面と当接することから、蓋体3の移動が規制される。   In addition, when the lid 3 is further rotated in the direction in which the lid 3 is screwed in a state in which the container 3 is sealed, the distal end surface of the caliber portion 21 comes into contact with the contact portion 45 and the engaged portion 48. Comes into contact with the primary side surface of the second protrusion 32, so that the movement of the lid 3 is restricted.

次に、蓋体3を容器体2から取り外す場合には、蓋体3を螺脱方向に回転させる。この回転による回転方向の力により、蓋体3の被係合部48の二次側の側面が係合部23の第1突起部31の二次側の側面を押圧する。具体的には、回転方向の力は、口径部21の接平面に対して傾斜する第1突起部31の側面及び被係合部48の側面の押圧により、口径部21の軸心に向かう力に分散される。   Next, when removing the lid 3 from the container body 2, the lid 3 is rotated in the screwing direction. The secondary side surface of the engaged portion 48 of the lid 3 presses the secondary side surface of the first projecting portion 31 of the engaging portion 23 by the rotational force generated by the rotation. Specifically, the force in the rotational direction is a force directed toward the axis of the caliber portion 21 by pressing the side surface of the first protrusion 31 and the side surface of the engaged portion 48 that is inclined with respect to the tangential plane of the caliber portion 21. To be distributed.

これにより、被係合部48は、第1突起部31を過度に押圧することなく、第1突起部31の二次側の側面に沿って移動し、第1突起部31を乗り越えて第1突起部31の一次側に移動し、係合部23及び被係合部48の係合が解除される。さらに蓋体3を螺脱方向に回転させることで、雄螺子部22及び雌螺子部46が螺脱し、蓋体3が容器体2から取外し可能となる。   Thus, the engaged portion 48 moves along the side surface on the secondary side of the first protruding portion 31 without excessively pressing the first protruding portion 31, gets over the first protruding portion 31, and enters the first. The protrusion 31 moves to the primary side, and the engagement of the engaging portion 23 and the engaged portion 48 is released. Further, by rotating the lid body 3 in the screwing direction, the male screw portion 22 and the female screw portion 46 are screwed off, and the lid body 3 can be detached from the container body 2.

このように構成された樹脂容器1によれば、容器体2及び蓋体3は、螺合時及び螺脱時において、係合部23の第1突起部31及び被係合部48が当接した状態で、さらに蓋体3を回転させることで、容器体2が弾性変形し、係合部23及び被係合部48が係合又は係合部23及び被係合部48の係合が解除する。これにより、樹脂容器1は、係合部23及び被係合部48が塑性変形や損傷することがなく、係合部23及び被係合部48の係合を繰り返し行うことが可能となり、蓋体3を容器体2に繰り返し固定することが可能となる。   According to the resin container 1 configured as described above, the container body 2 and the lid body 3 are brought into contact with the first protrusion 31 of the engaging portion 23 and the engaged portion 48 at the time of screwing and unscrewing. In this state, by further rotating the lid 3, the container body 2 is elastically deformed, and the engaging portion 23 and the engaged portion 48 are engaged or the engaging portion 23 and the engaged portion 48 are engaged. To release. Thus, the resin container 1 can repeatedly engage the engaging portion 23 and the engaged portion 48 without causing the engaging portion 23 and the engaged portion 48 to be plastically deformed or damaged. It becomes possible to repeatedly fix the body 3 to the container body 2.

係合部23は、雄螺子部22及び連続部24間の口径部21に、雄螺子部22及び連続部24と離間して配置される。即ち、係合部23は、口径部21の雄螺子部22及び連続部24により強度が向上されていない部位に配置されることから、被係合部48により係合部23が押圧された際に、当該押圧力により、口径部21が容易に弾性変形することとなる。   The engaging portion 23 is disposed in the aperture portion 21 between the male screw portion 22 and the continuous portion 24 so as to be separated from the male screw portion 22 and the continuous portion 24. That is, since the engaging portion 23 is disposed at a portion where the strength is not improved by the male screw portion 22 and the continuous portion 24 of the aperture portion 21, when the engaging portion 23 is pressed by the engaged portion 48. Moreover, the aperture 21 is easily elastically deformed by the pressing force.

また、係合部23は、第1突起部31の側面を、45度以下とすることで、蓋体3の回転力を口径部21の軸心へ向かう力に好適に分散させることが可能、且つ、被係合部48の乗り越えが容易となる。   Moreover, the engaging part 23 can disperse | distribute the rotational force of the cover body 3 to the force which goes to the axial center of the aperture part 21 suitably by making the side surface of the 1st projection part 31 into 45 degrees or less, In addition, it is easy to get over the engaged portion 48.

さらに、係合部23は、第1突起部31の高さを、第2突起部32よりも低くすることで、蓋体3の回転により被係合部48が第1突起部31を乗り上げるのに必要な、口径部21の変形量を小さくすることが可能となる。このため、被係合部48が第1突起部31を乗り上げ可能な変形量となる、第1突起部31に被係合部48で印加される押圧力を低減することが可能となる。   Further, the engaging portion 23 makes the height of the first protruding portion 31 lower than that of the second protruding portion 32, so that the engaged portion 48 rides on the first protruding portion 31 by the rotation of the lid 3. It is possible to reduce the amount of deformation of the aperture 21 required for the above. For this reason, it becomes possible to reduce the pressing force applied by the engaged portion 48 to the first protruding portion 31, which is a deformation amount that allows the engaged portion 48 to ride on the first protruding portion 31.

これらのことから、口径部21が容易に弾性変形可能となるとともに、係合部23及び被係合部48の係合に高いトルクを必要とせず、このため、係合部23及び被係合部48の塑性変形を極力防止することが可能となる。   For these reasons, the aperture 21 can be easily elastically deformed, and does not require high torque to engage the engaging portion 23 and the engaged portion 48. It becomes possible to prevent the plastic deformation of the portion 48 as much as possible.

蓋体3は、係合部23を被係合部48により押圧する際に、口径部21よりも周壁部42の厚さを厚くすることで、口径部21よりも弾性変形の変形量を低減することが可能となる。また、蓋体3は、薄肉部47を周面部35と所定の隙間、例えば0.05mm〜0.5mmの隙間を持たせて対向させて薄肉部47を周面部35に当接可能とすることで、周壁部42の端部が弾性変形しても、変形量が極小な状態で、薄肉部47が周面部35と当接する。   When the lid 3 is pressed by the engaged portion 48 by the engaged portion 48, the deformation of the elastic deformation is reduced more than the aperture portion 21 by making the peripheral wall portion 42 thicker than the aperture portion 21. It becomes possible to do. Further, the lid 3 is configured such that the thin portion 47 can be brought into contact with the peripheral surface portion 35 with the thin portion 47 facing the peripheral surface portion 35 with a predetermined gap, for example, a gap of 0.05 mm to 0.5 mm. Thus, even if the end portion of the peripheral wall portion 42 is elastically deformed, the thin-walled portion 47 contacts the peripheral surface portion 35 in a state where the amount of deformation is minimal.

これらのことから、蓋体3は、被係合部48が係合部23を押圧することによる周壁部42の端部の変形を極力防止することが可能となる。これにより、蓋体3は、被係合部48の位置が略変位することがない。このため、樹脂容器1は、係合部23及び被係合部48の係合時に、実質的には容器体2のみが弾性変形し、係合部23の位置が変位するため、複数の係合部23及び被係合部48を同時に確実に係合させることが可能となる。   For these reasons, the lid 3 can prevent the end portion of the peripheral wall portion 42 from being deformed as much as possible when the engaged portion 48 presses the engaging portion 23. Thereby, as for the cover body 3, the position of the to-be-engaged part 48 does not substantially displace. For this reason, since the resin container 1 substantially elastically deforms only the container body 2 and the position of the engaging portion 23 is displaced when the engaging portion 23 and the engaged portion 48 are engaged, It is possible to reliably engage the mating portion 23 and the engaged portion 48 simultaneously.

また、樹脂容器1は、係合部23及び被係合部48を、ブロー成形でなく射出成形により形成することで、係合部23及び被係合部48の寸法精度が向上する。   Moreover, the resin container 1 forms the engaging part 23 and the to-be-engaged part 48 by injection molding instead of blow molding, and the dimensional accuracy of the engaging part 23 and the to-be-engaged part 48 improves.

上述したように本発明の実施形態に係る樹脂容器1によれば、係合部23及び被係合部48の係合時に、口径部21を弾性変形させることで、係合部23及び被係合部48の変形を防止し、蓋体3を容器体2に繰り返し固定することが可能となる。   As described above, according to the resin container 1 according to the embodiment of the present invention, when the engaging portion 23 and the engaged portion 48 are engaged, the aperture portion 21 is elastically deformed, so that the engaging portion 23 and the engaged portion are engaged. The deformation of the joint portion 48 is prevented, and the lid 3 can be repeatedly fixed to the container body 2.

(第2の実施形態)
次に、本発明の第2の実施形態に係る樹脂容器1Aの構成を、図12乃至図17を用いて説明する。
図12は、本発明の第2の実施形態に係る樹脂容器1Aに用いられる容器体2Aの構成を示す側面図、図13は容器体2Aの要部構成、具体的には図12中XIII−XIII断面の構成を示す断面図、図14は容器体2Aの要部構成、具体的には図13中XIV−XIV断面の構成を示す断面図、図15は樹脂容器1Aに用いられる蓋体3Aの構成を示す断面図、図16は蓋体3Aの要部構成、具体的には蓋体3Aの周壁部42Aの構成を拡大して示す断面図、図17は蓋体3Aの要部構成、具体的には図16中XVII−XVII断面の構成を示す断面図、である。なお、第2の実施形態に係る樹脂容器1Aの構成のうち、上述した第1の実施形態に係る樹脂容器1と同様の構成には同一符号を付し、その詳細な説明は省略する。
(Second Embodiment)
Next, the structure of the resin container 1A according to the second embodiment of the present invention will be described with reference to FIGS.
FIG. 12 is a side view showing a configuration of a container body 2A used in a resin container 1A according to the second embodiment of the present invention, and FIG. 13 is a main configuration of the container body 2A, specifically, XIII- in FIG. FIG. 14 is a cross-sectional view showing the configuration of the XIII cross section, FIG. 14 is a main portion configuration of the container body 2A, specifically, a cross-sectional view showing the configuration of the XIV-XIV cross section in FIG. 13, and FIG. FIG. 16 is a cross-sectional view showing the main part configuration of the lid 3A, specifically, the configuration of the peripheral wall part 42A of the lid 3A, and FIG. 17 is a main part configuration of the lid 3A. Specifically, FIG. 17 is a cross-sectional view showing the configuration of the XVII-XVII cross section in FIG. In addition, the same code | symbol is attached | subjected to the structure similar to the resin container 1 which concerns on 1st Embodiment mentioned above among the structures of the resin container 1A which concerns on 2nd Embodiment, and the detailed description is abbreviate | omitted.

図12乃至図17に示すように、樹脂容器1Aは、有底円筒状のカップ形状に形成された容器体2Aと、容器体2Aの開口を閉塞する蓋体3Aと、を備えている。樹脂容器1Aは、内容物として液状物を容器体2A内に充填(収容)し、且つ、蓋体3Aにより容器体2Aを密封可能に形成されている。樹脂容器1Aは、当該密閉により、液状物を容器体2A及び蓋体3Aにより形成される空間に保持可能、且つ、保持した液状物を混合可能な、所謂シェイカーと呼ばれる包装容器である。   As shown in FIGS. 12 to 17, the resin container 1 </ b> A includes a container body 2 </ b> A formed in a bottomed cylindrical cup shape, and a lid body 3 </ b> A that closes the opening of the container body 2 </ b> A. The resin container 1A is formed so that a liquid material can be filled (contained) in the container body 2A as a content, and the container body 2A can be sealed by the lid body 3A. The resin container 1A is a so-called shaker packaging container that can hold a liquid material in a space formed by the container body 2A and the lid body 3A and can mix the held liquid material by the sealing.

図12乃至図14に示すように、容器体2Aは、胴部材10と、底部材11と、口部12Aと、を備えている。容器体2Aは、樹脂材料、例えば、ポリエチレン(PE)及びポリプロピレン(PP)等のオレフィン系樹脂、ポリエチレンテレフタレート(PET)等のポリエステル系樹脂、又は、スチレン系樹脂等により、インモールド成形等の射出成形により胴部材10、底部材11及び口部12Aが一体に形成されている。   As shown in FIGS. 12 to 14, the container body 2 </ b> A includes a body member 10, a bottom member 11, and a mouth portion 12 </ b> A. The container body 2A is injected by in-mold molding or the like with a resin material, for example, an olefin resin such as polyethylene (PE) and polypropylene (PP), a polyester resin such as polyethylene terephthalate (PET), or a styrene resin. The body member 10, the bottom member 11, and the mouth portion 12A are integrally formed by molding.

図12に示すように、口部12Aは、胴部材10の他方の端部側に一体に形成され、胴部材10の端部を開口させる。口部12Aは、胴部材10とその内径及び外径が略同一径であって、且つ、その肉厚が胴部材10の肉厚と略同一に形成されている。口径部21は、その外面に印加される外力により、弾性変形可能に形成されている。   As shown in FIG. 12, the mouth portion 12 </ b> A is integrally formed on the other end side of the body member 10 and opens the end portion of the body member 10. The mouth portion 12 </ b> A has an inner diameter and an outer diameter that are substantially the same as those of the body member 10, and has a thickness that is substantially the same as the thickness of the body member 10. The aperture 21 is formed to be elastically deformable by an external force applied to the outer surface thereof.

図12乃至図14に示すように、口部12Aは、口径部21と、雄螺子部22と、口径部21の外周面であって雄螺子部22と胴部材10との間に設けられた係合部23Aと、を備えている。   As shown in FIG. 12 to FIG. 14, the mouth portion 12 </ b> A is provided between the bore portion 21, the male screw portion 22, and the outer peripheral surface of the bore portion 21 between the male screw portion 22 and the body member 10. Engaging portion 23A.

係合部23Aは、口径部21に4つ設けられる。具体的には、係合部23Aは、口径部21の、雄螺子部22及び連続部24の間であって、且つ、雄螺子部22の隣り合う螺子山22aの下端部の間に突出して設けられる単体の突起部である。係合部23Aは、等間隔、換言すると、口径部21の周方向の対称位置に4つ設けられ、雄螺子部22の螺子山22aよりもその高さが高く形成されている。   Four engaging portions 23 </ b> A are provided in the aperture portion 21. Specifically, the engaging portion 23A protrudes between the male screw portion 22 and the continuous portion 24 of the caliber portion 21 and between the lower end portions of the adjacent screw threads 22a of the male screw portion 22. It is a single protrusion provided. Four engaging portions 23 </ b> A are provided at equal intervals, in other words, at symmetrical positions in the circumferential direction of the aperture portion 21, and the height thereof is higher than the thread 22 a of the male screw portion 22.

係合部23Aは、胴部材10の軸心方向に直交する方向の断面形状が、台形状に形成されている。図14に示すように、係合部23Aは、その一次側の側面が、口径部21の接平面に対して45度よりも大きい角度、好ましくは略90度の傾斜角度で形成されている。また、係合部23Aは、その二次側の側面が、口径部21の接平面に対して45度、好ましくは45度よりも小さい角度で傾斜して形成されている。   The engaging portion 23 </ b> A has a trapezoidal cross-sectional shape in a direction orthogonal to the axial direction of the body member 10. As shown in FIG. 14, the engaging portion 23 </ b> A has a primary side surface formed at an angle larger than 45 degrees with respect to the tangential plane of the aperture portion 21, preferably at an inclination angle of approximately 90 degrees. Further, the engaging portion 23A is formed such that the secondary side surface thereof is inclined at an angle of 45 degrees, preferably less than 45 degrees, with respect to the tangential plane of the aperture portion 21.

なお、このような容器体2Aは、射出ブロー成形又はダイレクトブロー成形により形成される。射出ブロー成形では、容器体2Aは、先ず、射出成形により、連続部24よりも上方の口部12Aが形成された有底パリソンが形成される。容器体2Aは、有底パリソン形成後、口部12Aの連続部24、胴部材10及び底部材11が、胴部材10の軸心方向に沿った分割面を有する分割可能な金型を用いてブロー成形により形成される。ダイレクトブロー成形では、容器体2Aは、胴部材10の軸心方向に沿った分割面を有する分割可能な金型を用いて形成される。なお、射出ブロー成形又はダイレクトブロー成形で分割された金型は、それぞれ、一つの係合部23A、及び、対称位置にある係合部23Aの一部を一対形成可能に形成されている。   Such a container body 2A is formed by injection blow molding or direct blow molding. In the injection blow molding, the container body 2A is first formed with a bottomed parison in which the mouth portion 12A above the continuous portion 24 is formed by injection molding. After forming the bottomed parison, the container body 2 </ b> A is formed by using a mold that can be divided, in which the continuous portion 24 of the mouth portion 12 </ b> A, the body member 10, and the bottom member 11 have division surfaces along the axial direction of the body member 10. It is formed by blow molding. In the direct blow molding, the container body 2A is formed using a splittable mold having a split surface along the axial direction of the body member 10. The molds divided by injection blow molding or direct blow molding are formed so that a pair of one engaging portion 23A and a part of the engaging portion 23A at a symmetrical position can be formed.

図15乃至図17に示すように、蓋体3Aは、口径部21の高さと略同一高さに形成された有底円筒状に形成されている。具体的には、蓋体3Aは、天部41と、天部41から延設された円筒状の周壁部42Aと、を備えている。   As shown in FIGS. 15 to 17, the lid 3 </ b> A is formed in a bottomed cylindrical shape that is formed at substantially the same height as the aperture 21. Specifically, the lid body 3 </ b> A includes a top portion 41 and a cylindrical peripheral wall portion 42 </ b> A extending from the top portion 41.

周壁部42Aは、当接部45と、雌螺子部46と、薄肉部47と、薄肉部47に設けられた被係合部48Aと、を備えている。周壁部42Aは、例えば、その肉厚が1mm〜2mmに形成されている。なお、周壁部42Aの肉厚は、口径部21Aの肉厚よりも若干厚く形成されている。   The peripheral wall portion 42 </ b> A includes a contact portion 45, a female screw portion 46, a thin portion 47, and an engaged portion 48 </ b> A provided in the thin portion 47. For example, the peripheral wall portion 42 </ b> A has a thickness of 1 mm to 2 mm. The wall thickness of the peripheral wall portion 42A is slightly thicker than the wall thickness of the aperture portion 21A.

被係合部48Aは、薄肉部47の内周面から突出して4つ形成されている。具体的には、被係合部48Aは、薄肉部47の内周面の螺子山46aの下端側に隣接する部位に突出して設けられ、雌螺子部46の隣り合う螺子山46aの下端部間にそれぞれ等間隔、換言すると、周壁部42の周方向の対称位置に4つ設けられる。被係合部48Aは、所定の間隔を有して配置された第1突起部51及び第2突起部52をそれぞれ備えている。   Four engaged portions 48 </ b> A are formed to protrude from the inner peripheral surface of the thin portion 47. Specifically, the engaged portion 48A is provided to project from a portion adjacent to the lower end side of the thread 46a on the inner peripheral surface of the thin portion 47, and between the lower ends of the adjacent threads 46a of the female thread 46. Are provided at equal intervals, in other words, at four symmetrical positions in the circumferential direction of the peripheral wall portion 42. The engaged portion 48A includes a first protrusion 51 and a second protrusion 52 that are arranged with a predetermined interval.

第1突起部51は、第2突起部52及び雌螺子部46の螺子山46aよりもその高さが低く形成されている。第1突起部51は、第2突起部52の、雄螺子部22及び雌螺子部46の螺合方向の一次側に配置される。   The height of the first protrusion 51 is lower than that of the second protrusion 52 and the thread 46a of the female screw 46. The first protruding portion 51 is disposed on the primary side of the second protruding portion 52 in the screwing direction of the male screw portion 22 and the female screw portion 46.

第1突起部51は、図16及び図17に示すように、周壁部42Aの軸心方向と直交する方向の断面が半楕円形状であって、周壁部42Aの軸心方向に沿って形成された半楕円柱状に形成されている。第1突起部51は、その接平面が口径部21の接平面に対して45度よりも小さい角度で傾斜して形成されている。   As shown in FIGS. 16 and 17, the first protrusion 51 has a semi-elliptical cross section in a direction perpendicular to the axial direction of the peripheral wall portion 42A, and is formed along the axial direction of the peripheral wall portion 42A. It is formed in a semi-elliptical column shape. The first protrusion 51 is formed such that its tangent plane is inclined at an angle smaller than 45 degrees with respect to the tangent plane of the aperture 21.

第2突起部52は、第1突起部51の二次側に、第1突起部51と所定の間隔、具体的には、係合部23Aの先端側の一部が位置可能な隙間を有して配置される。第2突起部52は、雌螺子部46の螺子山46aよりもその高さが低く形成されている。さらに言えば、第2突起部52は、周壁部42Aの内周面と面一に形成されている。   The second protrusion 52 has a gap on the secondary side of the first protrusion 51 where the first protrusion 51 can be positioned at a predetermined interval, specifically, a part of the front end side of the engaging portion 23A. Arranged. The second protrusion 52 is formed to be lower in height than the thread 46a of the female thread 46. Furthermore, the second protrusion 52 is formed flush with the inner peripheral surface of the peripheral wall portion 42A.

第2突起部52は、その側面が、周壁部42Aの内周面の接平面に対して45度より大きく、例えば略90度に形成された四角柱状に形成されている。第2突起部52の側面は、好ましくは、係合部23Aの一次側の側面と略同一角度に形成されている。   The side surface of the second protrusion 52 is larger than 45 degrees with respect to the tangential plane of the inner peripheral surface of the peripheral wall portion 42A, and is formed in a rectangular column shape formed at, for example, approximately 90 degrees. The side surface of the second protrusion 52 is preferably formed at substantially the same angle as the primary side surface of the engaging portion 23A.

なお、このような蓋体3Aは、射出成形により、周壁部42Aの軸心方向に分割してなる金型により形成される。   Note that such a lid 3A is formed by a mold that is divided in the axial direction of the peripheral wall portion 42A by injection molding.

このように構成された樹脂容器1Aによれば、上述した樹脂容器1と同等の効果を有する。具体的には、容器体2A及び蓋体3Aは、係合部23A及び被係合部48Aの第1突起部51が当接した状態で、さらに蓋体3Aを回転させることで、容器体2Aの口径部21が弾性変形する。なお、ここで、係合部23A及び第1突起部51が4箇所で当接し、第1突起部51により係合部23Aがそれぞれ押圧されることから、口径部21は、その外周面であって、係合部23Aが形成された位置で、その軸心に向かって窪むように弾性変形する。   According to the resin container 1 </ b> A configured as described above, an effect equivalent to that of the resin container 1 described above is obtained. Specifically, the container body 2A and the lid body 3A are further rotated by rotating the lid body 3A in a state where the engaging portion 23A and the first protrusion 51 of the engaged portion 48A are in contact with each other. The aperture 21 is elastically deformed. Here, since the engaging portion 23A and the first projecting portion 51 come into contact with each other at four locations, and the engaging portion 23A is pressed by the first projecting portion 51, the aperture portion 21 is the outer peripheral surface thereof. Thus, at the position where the engaging portion 23A is formed, it is elastically deformed so as to be recessed toward the axis.

この口径部21の弾性変形により、第1突起部51が係合部23Aを乗り上げて係合部23A及び被係合部48Aが係合する。これにより、樹脂容器1Aは、上述した樹脂容器1と同様に、係合部23A及び被係合部48Aが変形、即ち、塑性変形や損傷することがなく、係合部23A及び被係合部48Aの係合を繰り返し行うことが可能となる。   Due to the elastic deformation of the caliber portion 21, the first protrusion 51 rides on the engaging portion 23A, and the engaging portion 23A and the engaged portion 48A are engaged. Thereby, in the resin container 1A, the engaging portion 23A and the engaged portion 48A are not deformed, that is, plastically deformed or damaged, like the resin container 1 described above, and the engaging portion 23A and the engaged portion are not damaged. 48A can be repeatedly engaged.

係合部23Aは、雄螺子部22及び連続部24間の口径部21に、雄螺子部22及び連続部24と離間して配置される。即ち、係合部23Aは、口径部21の雄螺子部22及び連続部24により強度が向上されていない部位に配置されることから、被係合部48Aにより係合部23Aが押圧された際に、当該押圧力により、口径部21が容易に弾性変形することとなる。   The engaging portion 23 </ b> A is disposed in the aperture portion 21 between the male screw portion 22 and the continuous portion 24 so as to be separated from the male screw portion 22 and the continuous portion 24. That is, since the engaging portion 23A is disposed at a portion where the strength is not improved by the male screw portion 22 and the continuous portion 24 of the aperture portion 21, the engaging portion 23A is pressed by the engaged portion 48A. Moreover, the aperture 21 is easily elastically deformed by the pressing force.

また、被係合部48Aが第1突起部51を、その接平面が周壁部42Aの接平面に対して45度より小さい角度の円弧形状とすることで、蓋体3Aにより係合部23Aに印加される回転力を、係合部23Aから口径部21の軸心へ向かう力に分散可能となる。また、被係合部48Aの形状により、被係合部48Aは、係合部23Aの乗り越えが容易となる。   Further, the engaged portion 48A makes the first protrusion 51 an arc shape whose tangent plane has an angle smaller than 45 degrees with respect to the tangential plane of the peripheral wall portion 42A. The applied rotational force can be distributed to the force from the engaging portion 23 </ b> A toward the axial center of the aperture portion 21. Further, due to the shape of the engaged portion 48A, the engaged portion 48A can easily get over the engaging portion 23A.

これらのことから、口径部21が容易に弾性変形可能となるとともに、係合部23A及び被係合部48Aの係合に高いトルクを必要とせず、係合部23A及び被係合部48Aの塑性変形を極力防止することが可能となる。   Accordingly, the aperture 21 can be easily elastically deformed, and high torque is not required for the engagement of the engaging portion 23A and the engaged portion 48A, and the engaging portion 23A and the engaged portion 48A can be engaged. It becomes possible to prevent plastic deformation as much as possible.

また、係合部23A及び被係合部48Aは、射出成形により形成することで、係合部23A及び被係合部48Aの寸法精度が向上する。   In addition, the dimensional accuracy of the engaging portion 23A and the engaged portion 48A is improved by forming the engaging portion 23A and the engaged portion 48A by injection molding.

上述したように本発明の実施形態に係る樹脂容器1Aによれば、上述した樹脂容器1と同様に、係合部23A及び被係合部48Aの係合時に、口径部21を弾性変形させることで、蓋体3Aを容器体2Aに繰り返し固定することが可能となる。   As described above, according to the resin container 1A according to the embodiment of the present invention, similarly to the resin container 1 described above, when the engaging portion 23A and the engaged portion 48A are engaged, the aperture portion 21 is elastically deformed. Thus, the lid 3A can be repeatedly fixed to the container body 2A.

(第3の実施形態)
次に、本発明の第3の実施形態に係る樹脂容器1Bの構成を、図18を用いて説明する。
図18は本発明の第3の実施形態に係る樹脂容器1Bの構成を示す断面図である。なお、第3の実施形態に係る樹脂容器1Bの構成のうち、上述した第1の実施形態に係る樹脂容器1と同様の構成には同一符号を付し、その詳細な説明は省略する。
(Third embodiment)
Next, the structure of the resin container 1B according to the third embodiment of the present invention will be described with reference to FIG.
FIG. 18 is a cross-sectional view showing a configuration of a resin container 1B according to the third embodiment of the present invention. In addition, the structure same as the resin container 1 which concerns on 1st Embodiment among the structures of the resin container 1B which concerns on 3rd Embodiment is attached | subjected the same code | symbol, and the detailed description is abbreviate | omitted.

図18に示すように、樹脂容器1Bは、有底円筒状のカップ形状に形成された容器体2Bと、容器体2Bの開口を閉塞する蓋体3と、を備えている。樹脂容器1Bは、内容物として液状物を容器体2B内に充填し、且つ、蓋体3により容器体2Bを密封することで、液状物を保持可能、且つ、混合可能な、所謂広口容器と呼ばれる包装容器である。   As shown in FIG. 18, the resin container 1B includes a container body 2B formed in a bottomed cylindrical cup shape, and a lid 3 that closes the opening of the container body 2B. The resin container 1B is a so-called wide-mouth container that can hold and mix the liquid material by filling the container body 2B with the liquid material as the contents and sealing the container body 2B with the lid 3. It is a packaging container called.

図18に示すように、容器体2Bは、胴部材10と、底部材11と、口部12Bと、を備えている。   As shown in FIG. 18, the container body 2B includes a body member 10, a bottom member 11, and a mouth portion 12B.

口部12Bは、胴部材10の他方の端部側に一体に形成され、胴部材10(容器体2B)の端部を開口させる。口部12Bは、胴部材10とその内径及び外径が略同一径であって、且つ、その肉厚が胴部材10の肉厚と略同一に形成されている。口部12Bは、例えば、その口径が50mm〜150mmに、その肉厚が1mm〜2mmに形成されている。   The mouth portion 12B is integrally formed on the other end side of the body member 10, and opens the end portion of the body member 10 (container body 2B). The mouth portion 12 </ b> B is formed so that the inner diameter and the outer diameter thereof are substantially the same as those of the body member 10, and the thickness thereof is substantially the same as the thickness of the body member 10. The mouth portion 12B has, for example, a diameter of 50 mm to 150 mm and a thickness of 1 mm to 2 mm.

口部12Bは、口径部21と、雄螺子部22と、係合部23と、口径部21及び胴部材10を連続させる連続部24Bと、を備えている。   The mouth portion 12B includes a bore portion 21, a male screw portion 22, an engaging portion 23, and a continuous portion 24B that allows the bore portion 21 and the body member 10 to be continuous.

連続部24Bは、周面部35と、第1稜部36と、周面部35及び口径部21を曲面で連続するとともに、その外面が円環状に突出する第2稜部37Bと、を備えている。   The continuous portion 24B includes a peripheral surface portion 35, a first ridge portion 36, and a second ridge portion 37B in which the peripheral surface portion 35 and the caliber portion 21 are continuous with a curved surface and the outer surface protrudes in an annular shape. .

第2稜部37Bは、蓋体3が容器体2に固定される際に、その外周面が薄肉部47と、0.05mm〜0.5mm程度の隙間を有して対向する。第2稜部37Bは、周壁部42の変形時に、薄肉部47の内周面と当接することで、周壁部42の変形を規制する規制部である。第2稜部37Bは、口径部21からその外周面までの高さが、口径部21から係合部23(第2突起部32)の先端までの高さと同一の高さ、又は、第2突起部32よりも高く形成されている。   When the lid 3 is fixed to the container body 2, the second ridge portion 37 </ b> B faces the thin wall portion 47 with a gap of about 0.05 mm to 0.5 mm. The second ridge portion 37 </ b> B is a restricting portion that restricts deformation of the peripheral wall portion 42 by contacting the inner peripheral surface of the thin portion 47 when the peripheral wall portion 42 is deformed. The height of the second ridge 37B from the caliber 21 to the outer peripheral surface is the same as the height from the caliber 21 to the tip of the engaging part 23 (second protrusion 32), or the second It is formed higher than the protrusion 32.

なお、このような容器体2Bは、射出ブロー成形により形成される。容器体2Bは、先ず、射出成形により、連続部24Bを含む口部12Bが形成された有底パリソンが形成される。容器体2Bは、有底パリソン形成後、胴部材10及び底部材11が、胴部材10の軸心方向に分割される一対の金型を用いてブロー成形により形成される。   In addition, such a container body 2B is formed by injection blow molding. In the container body 2B, a bottomed parison in which the mouth portion 12B including the continuous portion 24B is first formed by injection molding. After forming the bottomed parison, the container body 2B is formed by blow molding using a pair of molds in which the body member 10 and the bottom member 11 are divided in the axial direction of the body member 10.

なお、有底パリソンの形成時において、口部12Bの連続部24Bは、少なくとも第2稜部37Bが形成されていればよく、例えば、周面部35及び第1稜部36は、ブロー成形時に有底パリソンから形成する構成であってもよい。   When the bottomed parison is formed, the continuous portion 24B of the mouth portion 12B only needs to have at least the second ridge portion 37B. For example, the peripheral surface portion 35 and the first ridge portion 36 are present at the time of blow molding. The structure formed from a bottom parison may be sufficient.

このように構成された樹脂容器1Bは、上述した樹脂容器1と同様の効果を有するとともに、蓋体3を容器体2Bに螺合する際に、第2稜部37Bにより、蓋体3の周壁部42の変形を防止することが可能となる。   The resin container 1B configured in this manner has the same effect as the resin container 1 described above, and the second ridge portion 37B causes the peripheral wall of the lid body 3 when the lid body 3 is screwed to the container body 2B. It becomes possible to prevent the deformation of the portion 42.

上述したように本発明の第3の実施形態に係る樹脂容器1Bによれば、上述した樹脂容器1と同様に、蓋体3を容器体2Bに繰り返し固定することが可能となる。   As described above, according to the resin container 1B according to the third embodiment of the present invention, similarly to the resin container 1 described above, the lid 3 can be repeatedly fixed to the container 2B.

なお、本発明は前記実施形態に限定されるものではない。上述した例では、樹脂容器1、1Bは、容器体2に係合部23が周方向に等間隔に2つ、蓋体3に被係合部48が周方向に等間隔に4つ設けられる構成を、樹脂容器1Aは、係合部23A及び被係合部48が、周方向に等間隔に4つ形成される構成を説明したが、これに限定されない。   In addition, this invention is not limited to the said embodiment. In the example described above, the resin containers 1 and 1B are provided with two engaging portions 23 at equal intervals in the circumferential direction on the container body 2 and four engaged portions 48 at equal intervals in the circumferential direction on the lid 3. Although the resin container 1 </ b> A has been described as having four engaging portions 23 </ b> A and four engaged portions 48 formed at equal intervals in the circumferential direction, the present invention is not limited to this.

例えば、樹脂容器1、1Bに設けられる係合部23及び被係合部48は、それぞれ、周方向に等間隔に4つであってもよく、周方向に等間隔に2つであってもよい。また、例えば、樹脂容器1Aの係合部23Aは、周方向に等間隔に2つ設ける構成であってもよく、係合部23A及び被係合部48Aがそれぞれ2つ設けられる構成であってもよい。   For example, the number of the engaging portions 23 and the engaged portions 48 provided in the resin containers 1 and 1B may be four at regular intervals in the circumferential direction, or may be two at regular intervals in the circumferential direction. Good. Further, for example, two engaging portions 23A of the resin container 1A may be provided at equal intervals in the circumferential direction, and two engaging portions 23A and two engaged portions 48A are provided. Also good.

但し、樹脂容器1、1Bに係合部23を4つ設ける構成とすると、分割した金型の抜き方向に、金型の内面と第1突起部31及び第2突起部32のいずれかの外面とが干渉するため、金型の抜き工程において係合部23を損傷させる虞がある。このため、第1突起部31及び第2突起部32を有する係合部23は、樹脂容器1、1Bに2つ設ける構成、又は、金型を抜く際に、係合部23と金型が極力干渉しない構成とすることが望ましい。   However, if the resin containers 1 and 1B are provided with four engaging portions 23, the inner surface of the mold and the outer surface of any one of the first protrusion 31 and the second protrusion 32 in the direction in which the divided molds are removed. May interfere with the engaging portion 23 in the mold drawing process. For this reason, the engagement part 23 having the first protrusion part 31 and the second protrusion part 32 has a structure in which two engagement parts 23 are provided in the resin containers 1 and 1B, or when the engagement part 23 and the mold are removed. It is desirable to have a configuration that does not interfere as much as possible.

また、上述した係合部23,23A及び被係合部48,48Aは、少なくとも一方が、第1突起部31,51、及び第2突起部32,52を有する構成を有する構成を説明したがこれに限定されない。例えば、係合部及び被係合部ともに、一つの突起部により構成されていてもよい。このような構成とすることで、係合部及び被係合部の係合後、さらに蓋体3を螺合方向に回転させた際に、蓋体3の回転は、口径部21の先端及び当接部45の当接により規制されることになる。この他、本発明の要旨を逸脱しない範囲で種々変形実施可能である。
以下に、本願出願の当初の特許請求の範囲に記載された発明を付記する。
[1] 一方の端側が閉塞され、他方の端側が開口する円筒状に形成された胴部材、並びに、胴部材の端部に設けられ、外力により弾性変形可能な円筒状の口径部、前記口径部の外面に形成された雄螺子部、前記口径部の外周面に前記雄螺子部及び前記胴部材と離間して設けられ、前記口径部の周方向に等間隔に前記雄螺子部よりも高く突出して複数形成された係合部、及び、前記係合部と離間して形成され前記口径部及び胴部材を連続する連続部を具備する口部を有する容器体と、
前記口径部を挿入可能な有底円筒状に形成され、その内周面に前記雄螺子部と螺合可能に形成された雌螺子部、及び、その内周面であって、その端部及び前記雌螺子部の間に設けられ、その周方向に等間隔に前記雌螺子部よりも低く突出して複数形成された被係合部を具備する蓋体と、
を備えることを特徴とする樹脂容器。
[2] 前記係合部は、前記被係合部が位置可能な間隔を有して配置された第1突起部及び第2突起部を具備することを特徴とする[1]に記載の樹脂容器。
[3] 前記第1突起部は、前記第2突起部の、前記雄螺子部及び前記雌螺子部の螺合方向の一次側に配置され、前記第2突起部よりも低く形成されることを特徴とする[2]に記載の樹脂容器。
[4] 前記被係合部は、前記係合部が位置可能な間隔を有して配置された第1突起部及び第2突起部を具備することを特徴とする[1]に記載の樹脂容器。
[5] 前記第1突起部は、前記第2突起部の、前記雄螺子部及び前記雌螺子部の螺合方向の一次側に配置され、前記第2突起部よりも低く形成されることを特徴とする[4]に記載の樹脂容器。
[6] 前記連続部は、前記蓋体の開口端部の内周面と所定の隙間を有して対向して配置され、前記蓋体の変形時に前記蓋体の開口端部の内周面と当接可能に、前記係合部と同一の高さ又は前記係合部より高く形成され、前記蓋体の開口端部の変形時に、前記蓋体の開口端部と当接することで、前記蓋体の変形を規制する規制部を備えることを特徴とする[1]に記載の樹脂容器。
[7] 前記容器体は、前記口径部、前記雄螺子部、及び、前記係合部が射出成形又はダイレクトブロー成形により形成されることを特徴とする[1]乃至[6]に記載の樹脂容器。
[8] 前記容器体は、さらに前記連続部が前記射出成形により形成されることを特徴とする[7]に記載の樹脂容器。
Moreover, although the engaging parts 23 and 23A and the engaged parts 48 and 48A described above have been described as having a configuration in which at least one has the first projecting parts 31 and 51 and the second projecting parts 32 and 52. It is not limited to this. For example, both the engaging portion and the engaged portion may be configured by a single protrusion. With this configuration, when the lid 3 is further rotated in the screwing direction after the engagement portion and the engaged portion are engaged, the rotation of the lid 3 causes the tip of the aperture 21 and It is regulated by the contact of the contact part 45. In addition, various modifications can be made without departing from the scope of the present invention.
Hereinafter, the invention described in the scope of claims of the present application will be appended.
[1] A cylinder member formed in a cylindrical shape in which one end side is closed and the other end side is opened, a cylindrical caliber portion provided at an end of the cylinder member and elastically deformable by an external force, the caliber A male screw portion formed on the outer surface of the portion, provided on the outer peripheral surface of the caliber portion, spaced apart from the male screw portion and the body member, and higher than the male screw portion at equal intervals in the circumferential direction of the caliber portion A container body having a projecting engagement portion and a mouth portion that is formed apart from the engagement portion and includes a continuous portion that continues the aperture portion and the body member;
A female screw part formed in a bottomed cylindrical shape into which the aperture part can be inserted and formed so as to be screwable with the male screw part on the inner peripheral surface thereof, and an inner peripheral surface thereof having an end portion and A lid that is provided between the female screw portions and includes a plurality of engaged portions that are formed to protrude lower than the female screw portions at equal intervals in the circumferential direction;
A resin container comprising:
[2] The resin according to [1], wherein the engaging portion includes a first protruding portion and a second protruding portion that are disposed with an interval at which the engaged portion can be positioned. container.
[3] The first protrusion is disposed on a primary side of the second protrusion in a screwing direction of the male screw and the female screw, and is formed lower than the second protrusion. The resin container according to [2], which is characterized.
[4] The resin according to [1], wherein the engaged portion includes a first protruding portion and a second protruding portion that are arranged with an interval at which the engaging portion can be positioned. container.
[5] The first protrusion is disposed on a primary side of the second protrusion in a screwing direction of the male screw and the female screw, and is formed lower than the second protrusion. The resin container according to [4], which is characterized.
[6] The continuous portion is disposed to face the inner peripheral surface of the opening end portion of the lid body with a predetermined gap, and the inner peripheral surface of the opening end portion of the lid body when the lid body is deformed. Is formed at the same height as the engaging portion or higher than the engaging portion, and when the opening end portion of the lid body is deformed, by contacting the opening end portion of the lid body, The resin container as set forth in [1], further comprising a restricting portion that restricts deformation of the lid.
[7] The resin according to any one of [1] to [6], wherein the container body is formed by injection molding or direct blow molding with the aperture portion, the male screw portion, and the engaging portion. container.
[8] The resin container according to [7], wherein the container body further includes the continuous portion formed by the injection molding.

1、1A、1B…樹脂容器、2、2A、2B…容器体、3、3A…蓋体、10…胴部材、11…底部材、12、12A、12B…口部、21、21A…口径部、22…雄螺子部、22a…螺子山、23、23A…係合部、24、24B…連続部、31…第1突起部、32…第2突起部、35…周面部、36…第1稜部、37、37B…第2稜部、41…天部、42、42A…周壁部、44…シール部、44a…面取部、45…当接部、46…雌螺子部、46a…螺子山、47…薄肉部、48、48A…被係合部、51…第1突起部、52…第2突起部。   DESCRIPTION OF SYMBOLS 1, 1A, 1B ... Resin container, 2, 2A, 2B ... Container body, 3, 3A ... Lid body, 10 ... Body member, 11 ... Bottom member, 12, 12A, 12B ... Mouth part, 21, 21A ... Aperture part , 22 ... male screw part, 22a ... screw thread, 23, 23A ... engagement part, 24, 24B ... continuous part, 31 ... first protrusion part, 32 ... second protrusion part, 35 ... peripheral surface part, 36 ... first Ridge part, 37, 37B ... 2nd ridge part, 41 ... Ceiling part, 42, 42A ... Peripheral wall part, 44 ... Seal part, 44a ... Chamfering part, 45 ... Abutting part, 46 ... Female screw part, 46a ... Screw Mountain, 47: Thin portion, 48, 48A ... Engaged portion, 51 ... First projection, 52 ... Second projection.

Claims (6)

一方の端側が閉塞され、他方の端側が開口する円筒状に形成された胴部材、並びに、胴部材の端部に設けられ、外力により弾性変形可能な円筒状の口径部、前記口径部の外面に形成された雄螺子部、前記口径部の外周面に前記雄螺子部及び前記胴部材と離間して設けられ、前記口径部の周方向に等間隔に前記雄螺子部よりも高く突出して複数形成された係合部、及び、前記係合部と離間して形成され前記口径部及び胴部材を連続する連続部を具備する口部を有する容器体と、
前記口径部を挿入可能な有底円筒状に形成され、その内周面に前記雄螺子部と螺合可能に形成された雌螺子部、及び、その内周面であって、その端部及び前記雌螺子部の間に設けられ、その周方向に等間隔に前記雌螺子部よりも低く突出して複数形成された被係合部を具備する蓋体と、
を備えることを特徴とする樹脂容器。
A cylinder member formed in a cylindrical shape in which one end side is closed and the other end side is opened, and a cylindrical caliber portion provided at an end portion of the torsion member and elastically deformable by an external force, an outer surface of the caliber portion A male screw portion formed on the outer peripheral surface of the caliber portion, spaced apart from the male screw portion and the body member, and projecting higher than the male screw portion at equal intervals in the circumferential direction of the caliber portion. A container body having a formed engagement portion, and a mouth portion that is formed apart from the engagement portion and includes a continuous portion that continues the aperture portion and the body member;
A female screw part formed in a bottomed cylindrical shape into which the aperture part can be inserted and formed so as to be screwable with the male screw part on the inner peripheral surface thereof, and an inner peripheral surface thereof having an end portion and A lid that is provided between the female screw portions and includes a plurality of engaged portions that are formed to protrude lower than the female screw portions at equal intervals in the circumferential direction;
A resin container comprising:
前記係合部は、前記被係合部が位置可能な間隔を有して配置された第1突起部及び第2突起部を具備することを特徴とする請求項1に記載の樹脂容器。   2. The resin container according to claim 1, wherein the engaging portion includes a first protruding portion and a second protruding portion that are disposed with an interval at which the engaged portion can be positioned. 前記第1突起部は、前記第2突起部の、前記雄螺子部及び前記雌螺子部の螺合方向の一次側に配置され、前記第2突起部よりも低く形成されることを特徴とする請求項2に記載の樹脂容器。   The first protrusion is disposed on a primary side of the second protrusion in a screwing direction of the male screw and the female screw, and is formed lower than the second protrusion. The resin container according to claim 2. 前記被係合部は、前記係合部が位置可能な間隔を有して配置された第1突起部及び第2突起部を具備することを特徴とする請求項1に記載の樹脂容器。   The resin container according to claim 1, wherein the engaged portion includes a first protruding portion and a second protruding portion that are arranged with a space at which the engaging portion can be positioned. 前記第1突起部は、前記第2突起部の、前記雄螺子部及び前記雌螺子部の螺合方向の一次側に配置され、前記第2突起部よりも低く形成されることを特徴とする請求項4に記載の樹脂容器。   The first protrusion is disposed on a primary side of the second protrusion in a screwing direction of the male screw and the female screw, and is formed lower than the second protrusion. The resin container according to claim 4. 前記連続部は、前記蓋体の開口端部の内周面と所定の隙間を有して対向して配置され、前記蓋体の変形時に前記蓋体の開口端部の内周面と当接可能に、前記係合部と同一の高さ又は前記係合部より高く形成され、前記蓋体の開口端部の変形時に、前記蓋体の開口端部と当接することで、前記蓋体の変形を規制する規制部を備えることを特徴とする請求項1に記載の樹脂容器。   The continuous portion is disposed to face the inner peripheral surface of the opening end portion of the lid body with a predetermined gap, and contacts the inner peripheral surface of the opening end portion of the lid body when the lid body is deformed. Preferably, it is formed at the same height as the engaging portion or higher than the engaging portion, and when the opening end portion of the lid body is deformed, it comes into contact with the opening end portion of the lid body, The resin container according to claim 1, further comprising a restriction portion that restricts deformation.
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