JP2009132437A - Screwing structure of container with cap - Google Patents

Screwing structure of container with cap Download PDF

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Publication number
JP2009132437A
JP2009132437A JP2007311745A JP2007311745A JP2009132437A JP 2009132437 A JP2009132437 A JP 2009132437A JP 2007311745 A JP2007311745 A JP 2007311745A JP 2007311745 A JP2007311745 A JP 2007311745A JP 2009132437 A JP2009132437 A JP 2009132437A
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cap
container
elastic body
screwing
elastic
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JP5035683B2 (en
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Takayuki Abe
孝之 阿部
Shigeo Iizuka
茂雄 飯塚
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a screwing structure capable of solving inevitable rickety in a screwing part between a container body such as a cream container and a screw cap made of a synthetic resin without being accompanied with a large frictional resistance, and exhibiting a good feeling of use. <P>SOLUTION: A projecting flexible elastomer 4 is arranged on the valley bottom face of either one of a container body 1 side or a cap 5 side of the screwing part. A projecting tip of the elastomer 4 is brought into light contact with the tip of the screw on the opposing side to prevent rickety between the container body 1 and the cap 5 from occurring by an elastic force of the elastomer 4, and to obtain a good feeling of use of a screwing operation by an appropriately good sliding resistance caused by elastic contact of the elastomer 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、合成樹脂製のキャップ付き容器の螺合構造、詳しくは、合成樹脂成形で不可避の成形後の収縮による寸法変化に基づくガタ付きを解消する螺合構造に関する。   The present invention relates to a threaded structure of a synthetic resin cap-equipped container, and more particularly to a threaded structure that eliminates backlash due to dimensional changes due to shrinkage after molding that is unavoidable in synthetic resin molding.

合成樹脂製ねじキャップの螺合にあっては、成形後の収縮で寸法が変化することから、金属に精密切削加工を施した場合のような高精度の螺合を期することは不可能であって、ガタ付きは不可避となっている。   When screwing a synthetic resin screw cap, the dimensions change due to shrinkage after molding, so it is impossible to expect high-precision screwing as in the case of precision cutting on metal. And it ’s inevitable to play with backlash.

かかるガタ付きを解消して、金属での精密加工と同様な感触の螺合を提供するとした提案は無いが、近似したものとしては、所謂弛み止めの提案が、壜口部とねじキャップの螺合構造において、多数ある。   There is no proposal to eliminate such rattling and provide a feel-like threading similar to that of precision processing with metal, but as an approximation, the so-called loosening prevention suggests that There are many in the combined structure.

例えば、ねじ螺条先端に押圧密着する弛み止め凸条なるものを容器若しくはキャップ側に周穿設して、開閉操作中摩擦抵抗を作用させるとしたもの（特開平１０−１１９９９６号公報）がある。   For example, there is a type in which a slack-preventing ridge that presses and adheres to the tip of a screw thread is perforated on the container or cap side to cause frictional resistance during opening and closing operations (Japanese Patent Laid-Open No. 10-199996). .

上記の弛み止め凸条により得られる摩擦抵抗は、ガタ付きを解消することとなるのであるが、合成樹脂成形品には、ある程度の成形寸法誤差が必ず発生するので、前記した摩擦抵抗の強さを正確に設定することは殆ど不可能であり、このため適正な摩擦抵抗を得ることができない、と云う問題があった。
特開平１０−１１９９９６号公報 The frictional resistance obtained by the above-described loosening-preventing ridges eliminates rattling, but a certain degree of molding dimensional error always occurs in a synthetic resin molded product. Therefore, there is a problem that it is almost impossible to set accurately, and therefore it is impossible to obtain an appropriate frictional resistance.
Japanese Patent Application Laid-Open No. 10-119996

既述の合成樹脂製のキャップ付き容器の螺合部にあって不可避のガタ付きを大なる摩擦抵抗を伴うことなく、解消する螺合構造を提供する。   Provided is a screwing structure that eliminates inevitable rattling with a large frictional resistance at a screwing portion of a container with a cap made of the aforementioned synthetic resin.

本発明によるキャップ付き容器の螺合構造は、外周面にねじ部が形成された口部を有する容器体と、内周面に容器体のねじ部に螺合するねじ部を有するキャップと、を備えた容器であって、螺合部の容器体側若しくはキャップ側のいずれか一方の谷底面に、凸状を有する弾性体を等中心角で複数配設し、この弾性体の凸状先端を、対峙する側の螺条先端に点接触にて圧接させ、ガタ付きを吸収すると共に、弾性体の弾力性によって軽い摩擦抵抗を発生させるとした、ものである。   The screwed structure of the container with a cap according to the present invention comprises: a container body having a mouth portion having a thread portion formed on the outer peripheral surface; and a cap having a screw portion threadedly engaged with the screw portion of the container body on the inner peripheral surface A plurality of elastic bodies having a convex shape are arranged at equal central angles on the bottom surface of either the container body side or the cap side of the screwing portion, and the convex tip of the elastic body is In this method, the screw tip on the opposite side is press-contacted by point contact to absorb backlash and light frictional resistance is generated by the elasticity of the elastic body.

容器体とキャップとが螺合している状態では、複数の弾性体の凸状先端が、対峙する螺条の先端に軽く圧接しているので、容器体とキャップが相互に支え合う状態となり、ガタ付くことはない。   In a state where the container body and the cap are screwed together, the convex tips of the plurality of elastic bodies are lightly pressed against the tips of the opposing threads, so that the container body and the cap support each other. There is no backlash.

また、容器体とキャップを相対回動させると、弾性体と螺条との軽い圧接による摺動抵抗が発生し、この摺動抵抗が、キャップの螺合動作に適度な抵抗感を発生させる。   Further, when the container body and the cap are rotated relative to each other, a sliding resistance is generated by light pressure contact between the elastic body and the thread, and this sliding resistance generates an appropriate resistance to the screwing operation of the cap.

上記弾性体は、例えば、エラスマーやシリコンゴム等がソフトで好適で、等中心角の配置で、３点配置するのが好ましい。   As the elastic body, for example, elastomer or silicone rubber is soft and suitable, and it is preferable that three elastic points are arranged at equal central angles.

弾性体を３点配置した場合は、容器体に対するキャップ側からの圧接が、全周に亘って均等化され、これによりキャップの螺合回動動作が安定する。   When three elastic bodies are arranged, the pressure contact from the cap side to the container body is equalized over the entire circumference, thereby stabilizing the screwing and turning operation of the cap.

弾性体の成形配置は、インサート成形により達成することができる。   The molding arrangement of the elastic body can be achieved by insert molding.

この場合、弾性体の成形と同時に、弾性体の容器体若しくはキャップへの配設固定が達成される。   In this case, the elastic body is disposed and fixed to the container body or cap simultaneously with the molding of the elastic body.

キャップ側に限定されるが、弾性体の配置は、周壁部に嵌合用貫通孔を穿設して、これにはめ込み装着し、化粧用の硬質樹脂若しくは金属製の外キャップの嵌着でバックアップすることでなし得る。   Although limited to the cap side, the arrangement of the elastic body is made by drilling a fitting through hole in the peripheral wall portion, fitting it into this, and backing up with a hard resin or metal outer cap for makeup. You can do it.

この場合、弾性体のキャップへの組付けを、単なる嵌め込み操作により達成でき、この組付きを外キャップが強固に支持することになる。   In this case, the assembly of the elastic body to the cap can be achieved by a simple fitting operation, and the outer cap firmly supports the assembly.

上記バックアップの場合は、それを利用して、外キャップに対峙する弾性体の底面を斫って、外キャップとの間にクッション用空間を形成することができる。   In the case of the backup, it is possible to form a cushion space between the outer cap and the outer cap by turning over the bottom surface of the elastic body facing the outer cap.

弾性体と外キャップとの間に空間を形成したものにあっては、弾性体単体の弾力に比べて、より一層ソフトな弾力性を付与できることになる。   In the case where a space is formed between the elastic body and the outer cap, it is possible to impart softer elasticity compared to the elasticity of the elastic body alone.

この場合、キャップの螺合回動が、よりソフトとなり、きわめて好ましい抵抗感を発揮することが可能となる。   In this case, the screwing rotation of the cap becomes softer, and it is possible to exhibit a very favorable resistance feeling.

本発明にあっては、合成樹脂製のキャップ付き容器の螺合構造における、不可避のガタ付きを、螺合部の容器体側若しくはキャップ側のいずれか一方の谷底面に、凸状の弾性体を配設し、この弾性体の凸先端に対峙する側の螺条先端が当接することで、存在するガタ付きは解消する。   In the present invention, in the threaded structure of the container with a cap made of synthetic resin, an inevitable backlash is provided on the bottom surface of either the container body side or the cap side of the threaded portion with a convex elastic body. The looseness which exists is eliminated by arrange | positioning and the front-end | tip of the thread | yarn opposite to the convex front-end | tip of this elastic body contact | abutting.

又、かかる当接下での螺動は、弾性体の弾力作用により、ほど良い抵抗のもとになされるので、きわめて良好な使用感を得ることができる。この動作は、正に、金属の精密加工での螺動と同じくスムーズで、かつ、適度の密着感をもってなされるので、壜に比し口径の大なる高級化粧品容器に適用して有意義である。   Further, the screwing under the contact is made under a moderate resistance by the elastic action of the elastic body, so that a very good feeling of use can be obtained. This operation is just as smooth as the screwing in precision metal processing and has a proper feeling of adhesion, so it is meaningful to be applied to a high-grade cosmetic container having a larger diameter than that of a bag.

弾性体を３点配置した場合は、キャップの螺合回動動作が安定するので、キャップの回動開閉操作が行い易くなる。   When the elastic bodies are arranged at three points, since the screwing rotation operation of the cap is stabilized, it is easy to perform the rotation opening / closing operation of the cap.

弾性体の成形配置は、インサート成形により達成する場合は、弾性体の成形と同時に、弾性体の容器体若しくはキャップへの配設固定が達成されるので、容器の製作処理が容易となる。   When forming and arranging the elastic body by insert molding, since the elastic body is disposed and fixed to the container body or the cap at the same time as forming the elastic body, the container manufacturing process is facilitated.

弾性体の配置を、周壁部に嵌合用貫通孔を穿設して、これにはめ込み装着し、化粧用の硬質樹脂若しくは金属製の外キャップの嵌着でバックアップするものにあっては、弾性体のキャップへの組付けを、単なる嵌め込み操作により達成できるので、弾性体のキャップへの配置作業が容易となる。   The elastic body should be backed up by inserting a fitting through hole in the peripheral wall portion and fitting it into the outer wall, and mounting it with a hard resin or metal outer cap. Assembling of the elastic body to the cap can be achieved by a simple fitting operation, so that the placement work of the elastic body on the cap becomes easy.

弾性体と外キャップとの間に空間を形成したものにあっては、弾性体単体の弾力に比べて、より一層ソフトな弾力性を付与できることになり、きわめて好ましい抵抗感を発揮することが可能となるので、優れた使用感を得ることができる。   In the case where a space is formed between the elastic body and the outer cap, it will be possible to give even softer elasticity than the elasticity of the elastic body alone, and it will be possible to demonstrate a very favorable resistance feeling. Thus, an excellent feeling of use can be obtained.

以下、本発明の実施形態例を、図面を参照しながら説明する。
図１は、本発明の実施に適している従来からの容器を示す、口径の大きな、例えば化粧用クリーム容器等の容器体１と、合成樹脂製ねじキャップであるキャップ５の組合せの、半縦断した全体図である。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a conventional container suitable for carrying out the present invention, which is a half-longitudinal combination of a container body 1 such as a cosmetic cream container having a large diameter and a cap 5 that is a synthetic resin screw cap. FIG.

図２ａは、図１に本発明の一実施例を実施した要部を拡大したもので、合成樹脂射出成形品である容器体１の螺合部２の谷底面３に、凸状の弾性体４を、インサート成形手段により、成形配設したものである。   FIG. 2a is an enlarged view of the main part of the embodiment of the present invention shown in FIG. 1, and a convex elastic body is formed on the bottom surface 3 of the threaded portion 2 of the container body 1 which is a synthetic resin injection molded product. 4 is formed and arranged by insert molding means.

すなわち、図２ｂに拡大して示す如く、容器体１の成形時に、谷底面３に付形した凹溝Ａを型面の一部として、図２ａに示すように、断面凸状の弾性体４をインサート成形して、成形と同時に取り付けを達成する。   That is, as shown in an enlarged view in FIG. 2b, when the container body 1 is formed, the concave groove A formed in the valley bottom surface 3 is used as a part of the mold surface, and as shown in FIG. Insert molding to achieve attachment at the same time as molding.

このインサート成形される弾性体４は、その凸状の高さを、キャップ５との螺合状態で、キャップ５の螺条６の先端６ａに、弾性体４の凸先端が、軽く当接する値に設定している。   The elastic body 4 to be insert-molded is such that the convex height of the elastic body 4 is lightly brought into contact with the tip 6a of the screw 6 of the cap 5 when the convex height is screwed with the cap 5. Is set.

図３は、弾性体４の配置要領を説明するもので、少なくとも２ケ配備されることでガタ解消に有効であるが、図示例の如く、等中心角配置で３ヶ所に配置することにより、弾性体４の作用が、全周に亘って均等化されるので好ましい。   FIG. 3 illustrates an arrangement procedure of the elastic body 4, and it is effective for eliminating the backlash by arranging at least two, but as shown in the illustrated example, it is arranged at three places with equal central angle arrangement, Since the action of the elastic body 4 is equalized over the entire circumference, it is preferable.

図４ａ、ｂは、キャップ５が金属等の硬質材製の外キャップ７を嵌着するタイプの場合を示し、キャップ５の側周壁８に穿った嵌合用貫通孔９に弾性体４を装着し、この弾性体４の凸先端を螺合部１０の谷底面１１に突出させ、容器体１に螺合した状態で、対峙する容器体１の螺条１２の先端１２ａに軽く当接するようにしている。   4A and 4B show a case in which the cap 5 is a type in which an outer cap 7 made of a hard material such as metal is fitted, and the elastic body 4 is attached to the fitting through hole 9 formed in the side peripheral wall 8 of the cap 5. The projecting tip of the elastic body 4 protrudes from the bottom surface 11 of the threaded portion 10 and is in light contact with the tip 12a of the thread 12 of the container body 1 facing the container body 1 in a state of being screwed. Yes.

弾性体４のキャップ５に対する嵌着は、外キャップ７のバックアップで脱することはない。   The elastic body 4 is not detached from the cap 5 by backing up the outer cap 7.

図４ｂ図にあっては、弾性体４の、外キャップ７に対峙する底面が斫られで、外キャップ７との間に空間１３が形成され、この空間１３により、弾性体４自体が変位し、これにより弾性体４の弾性作用と合わさって、ソフトで好ましい抵抗感を発揮する。   In FIG. 4 b, the bottom surface of the elastic body 4 facing the outer cap 7 is bent, and a space 13 is formed between the elastic cap 4 and the outer cap 7, and the elastic body 4 itself is displaced by this space 13. Thus, in combination with the elastic action of the elastic body 4, a soft and preferable resistance feeling is exhibited.

上記容器１とキャップ５における弾性体４の配備要領は、共に弾性体４の凸先端を、対向する螺条１２または螺条６の先端面中央部に接触させるように、設置される位置が設定されており、弾性体４の螺条６または螺条１２に対する接触圧力が、上下に不均一とならないようにしている。   The procedure for disposing the elastic body 4 in the container 1 and the cap 5 is set such that the convex end of the elastic body 4 is brought into contact with the central portion of the front end surface of the opposing screw 12 or screw 6. Thus, the contact pressure of the elastic body 4 with respect to the screw 6 or the screw 12 does not become uneven in the vertical direction.

なお、図４ａ、ｂに示した実施例の場合、弾性材４の貫通孔９への組付けを、装着と説明したが、これに限定されることはなく、図２の場合と同様に、インサート成形手段を利用して組付けることも可能である。   In the case of the embodiment shown in FIGS. 4a and 4b, the assembly of the elastic material 4 to the through hole 9 has been described as mounting, but the present invention is not limited to this, and as in the case of FIG. It is also possible to assemble using insert molding means.

本発明の実施に最適な高級化粧品容器の構造例を示す、半縦断全体図である。It is a semi-longitudinal whole figure which shows the example of a structure of the high-grade cosmetic container optimal for implementation of this invention. ａは本発明を容器側に施した一部縦断図、ｂは口部螺合部の谷底面の凹溝を示す、要部拡大斜視図である。a is a partially longitudinal view in which the present invention is applied to the container side; 弾性材の配置要領の説明図である。It is explanatory drawing of the arrangement | positioning point of an elastic material. ａは本発明をキャップ側に施した一部縦断図、ｂは他の実施例の拡大図である。a is a partially longitudinal view of the present invention applied to the cap side, and b is an enlarged view of another embodiment.

符号の説明Explanation of symbols

１ ； 容器体
２ ： 螺合部
３ ； 谷底面
４ ； 弾性体
５ ； キャップ
６ ； 螺条
６ａ ； 先端
７ ； 外キャップ
８ ； 側周壁
９ ； 貫通孔
１０ ； 螺合部
１１ ； 谷底面
１２ ； 螺条
１２ａ； 先端
１３ ； 空間 DESCRIPTION OF SYMBOLS 1; Container body 2: Screwing part 3; Valley bottom surface 4; Elastic body 5; Cap 6; Screw 6a; Tip 7; Outer cap 8: Side peripheral wall 9; Through-hole 10: Screwing part 11; Screw 12a; tip 13; space

Claims (5)

外周面にねじ部が形成された口部を有する容器体と、内周面に前記ねじ部に螺合するねじ部を有するキャップと、を備えた容器であって、螺合部の容器体側若しくはキャップ側のいずれか一方の谷底面に、凸状を有する弾性体を等中心角で複数配設し、当該弾性体の凸状先端を、対峙する側の螺条先端に点接触にて圧接させ、ガタ付きを吸収すると共に当該弾性体の弾力性によって軽い摩擦抵抗を発生させるとしたキャップ付き容器の螺合構造。 A container comprising a container body having a mouth portion having a threaded portion formed on an outer peripheral surface and a cap having a screw portion threadedly engaged with the threaded portion on an inner peripheral surface, the container body side of the threaded portion or A plurality of convex elastic bodies are arranged at equal central angles on either one of the bottom faces of the cap side, and the convex ends of the elastic bodies are brought into pressure contact with the tip ends of the opposing threads by point contact. A screwed structure of a cap-equipped container that absorbs looseness and generates light frictional resistance by the elasticity of the elastic body. 弾性体を等中心角で３点配設とした請求項1記載の合成樹脂製ねじキャップ螺合構造。 2. The synthetic resin screw cap screwing structure according to claim 1, wherein the elastic bodies are arranged at three points at equal central angles. 弾性体を、インサート成形により成形配設した請求項１または２に記載のキャップ付き容器の螺合構造。 The screwed structure of a container with a cap according to claim 1 or 2, wherein the elastic body is formed and arranged by insert molding. キャップ側周壁に嵌合用貫通孔を穿設させ、該貫通孔への嵌め込み装着により弾性体を配設し、該キャップの外郭を覆うように外キャップを嵌着させることでバックアップするとした請求項１または２に記載のキャップ付き容器の螺合構造。 A back-up is provided by forming a through-hole for fitting in the peripheral wall of the cap, arranging an elastic body by fitting into the through-hole, and fitting the outer cap so as to cover the outer shell of the cap. Or the screwing structure of the container with a cap of 2. 外キャップに対峙する弾性体の底面を斫って、前記外キャップとの間にクッション用空間を形成した請求項４記載のキャップ付き容器の螺合構造。 The screwed structure of the container with a cap according to claim 4, wherein a space for cushioning is formed between the outer cap and the bottom surface of the elastic body facing the outer cap.
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JPS57188656U (en) * 1981-05-26 1982-11-30
JPS5966751U (en) * 1982-10-25 1984-05-04 株式会社吉野工業所 screw cap
JPS6219949U (en) * 1985-07-18 1987-02-06
JPH052452Y2 (en) * 1986-12-04 1993-01-21
JPH0680658U (en) * 1993-04-30 1994-11-15 株式会社吉野工業所 Trigger type sprayer return prevention mechanism
JPH08258860A (en) * 1995-01-23 1996-10-08 Fukugou Plast Kogyokai:Kk Hermetically sealed container and its production
JPH10119996A (en) * 1996-10-18 1998-05-12 Kao Corp Screwing structure of cap
JP2000281101A (en) * 1999-03-30 2000-10-10 Yoshino Kogyosho Co Ltd Screwing device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54139658U (en) * 1978-03-20 1979-09-28
JPS56147255U (en) * 1980-04-08 1981-11-06
JPS56166238U (en) * 1980-05-08 1981-12-09
JPS57188656U (en) * 1981-05-26 1982-11-30
JPS5966751U (en) * 1982-10-25 1984-05-04 株式会社吉野工業所 screw cap
JPS6219949U (en) * 1985-07-18 1987-02-06
JPH052452Y2 (en) * 1986-12-04 1993-01-21
JPH0680658U (en) * 1993-04-30 1994-11-15 株式会社吉野工業所 Trigger type sprayer return prevention mechanism
JPH08258860A (en) * 1995-01-23 1996-10-08 Fukugou Plast Kogyokai:Kk Hermetically sealed container and its production
JPH10119996A (en) * 1996-10-18 1998-05-12 Kao Corp Screwing structure of cap
JP2000281101A (en) * 1999-03-30 2000-10-10 Yoshino Kogyosho Co Ltd Screwing device

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