JP2015217952A - cap - Google Patents

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Publication number
JP2015217952A
JP2015217952A JP2014100715A JP2014100715A JP2015217952A JP 2015217952 A JP2015217952 A JP 2015217952A JP 2014100715 A JP2014100715 A JP 2014100715A JP 2014100715 A JP2014100715 A JP 2014100715A JP 2015217952 A JP2015217952 A JP 2015217952A
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cylindrical
wall
valve
annular
container
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孝陽 崎村
Takaaki Sakimura
孝陽 崎村
佐々木　昌
Akira Sasaki
昌 佐々木
佐々木　元
Hajime Sasaki
元 佐々木
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Tokyo Light Industry Co Ltd
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Tokyo Light Industry Co Ltd
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Priority to JP2014100715A priority Critical patent/JP2015217952A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a cap that allows contents to be discharged smoothly in a natural state when the contents are used, and allows the inside of a container to be restored quickly into a sealed state without requiring manual operation after the contents are used.SOLUTION: A cap main body 4 comprises: a main cap body 10 that extends from a cylindrical inner wall part 14 and comprises a tubular guide part 15 with a discharge passage 23; a base wall-like body 11 that is arranged in the cylindrical inner wall part 14 and has each discharge hole 32 around a hemispherical valve seat part 30 protruded upward toward an approximate center part in a radial direction; and a check valve 12 that is separated from or seated on the valve seat part 30 of the base wall-like body 11 so as to open/close each discharge hole 32. The check valve 12, made of elastic synthetic resin, comprises: an annular valve part 37 energized toward the valve seat part 30; and a flow hole 38 that is arranged just below the a discharge passage 23 at the center part in the radial direction of the annular valve part 37. This allows contents to be smoothly discharged in a natural state when the contents are used and allows the inside of a container 2 to be quickly restored into a sealed state after the contents are used.

Description

本発明は、合成樹脂から成形されたキャップ、特に、醤油等の液状内容物や粘性を有する流動性内容物が充填される容器の容器口部に装着されるキャップに関するものである。   The present invention relates to a cap molded from a synthetic resin, and more particularly to a cap attached to a container mouth portion of a container filled with a liquid content such as soy sauce or a fluid content having viscosity.

上述した内容物の使用後、キャップの締着が弱いと、容器内の密封状態を維持できず容器内に空気または菌類等が入り、内容物の酸化またはカビ等の繁殖をきたし劣化を早めるなどの問題があった。これを解決するために、容器口部に装着されるキャップには、容器の胴部を圧搾して容器に内圧を加え、適量の内容物を使用した直後、使用者が手でキャップを操作することなく容器内（容器の口部）を密封するものが要求されている。   If the cap is weak after using the above-mentioned contents, the sealed state inside the container cannot be maintained, and air or fungi will enter the container, causing the contents to oxidize or proliferate, etc. There was a problem. In order to solve this problem, the cap attached to the container mouth is squeezed into the body of the container to apply internal pressure to the container, and the user operates the cap by hand immediately after using an appropriate amount of contents. What seals the inside of the container (the mouth of the container) without any problem is required.

上述した要求に対処すべく従来技術として特許文献１には、弁体の頂部に排出口が形成され、弁座体の頂壁の中央から弁体の排出口に差し込まれる截頭円錐体が設けられ、該截頭円錐体の周りに注出孔が設けられてあり、軽くチューブの胴部を押圧することで、弁体の排出口の截頭円錐体の周りから内容液が流出することが開示されている（図５）。   In order to cope with the above-described requirements, Patent Document 1 discloses a truncated cone that is formed with a discharge port at the top of the valve body and is inserted into the discharge port of the valve body from the center of the top wall of the valve seat body. In addition, a pouring hole is provided around the truncated cone, and the content liquid can flow out from around the truncated cone of the outlet of the valve body by lightly pressing the body of the tube. It is disclosed (FIG. 5).

実開昭５２−８４４５０号公報Japanese Utility Model Publication No. 52-84450

上述したように、特許文献１の発明では、内容物が液状であれば特に問題はないが、粘性を有する流動性内容物の場合には、内容物が、弁体の排出口の内周面と截頭円錐体の外周面との間の環状空間から吐出されるために、内容物が中空状など不自然な状態で外部に吐出される可能性があり、採用することができない。しかも、特許文献１の発明では、弁体の排出口と容器頂部の開口部とが離れて構成されているために、排出口の内周面と截頭円錐体の外周面との間の環状空間から吐出される内容物が、スムーズに容器頂部の開口部から外部に吐出されない虞がある。   As described above, in the invention of Patent Document 1, there is no particular problem as long as the contents are liquid, but in the case of fluid contents having viscosity, the contents are the inner peripheral surface of the outlet of the valve body. Is discharged from the annular space between the outer peripheral surface of the truncated cone and the contents, the contents may be discharged to the outside in an unnatural state such as a hollow shape and cannot be employed. Moreover, in the invention of Patent Document 1, since the discharge port of the valve body and the opening at the top of the container are separated from each other, the annular shape between the inner peripheral surface of the discharge port and the outer peripheral surface of the truncated cone is formed. There is a possibility that the contents discharged from the space are not smoothly discharged from the opening at the top of the container.

本発明は、かかる点に鑑みてなされたものであり、使用時には、内容物を自然な状態でスムーズに外部に吐出することができ、使用後には、使用者が手で操作することなく迅速に容器内を密封状態に復帰させることが可能なキャップを提供することを目的とする。   The present invention has been made in view of such points, and when used, the contents can be smoothly discharged to the outside in a natural state, and after use, the user can quickly operate without manual operation. An object of the present invention is to provide a cap capable of returning the inside of a container to a sealed state.

本発明は、上記課題を解決するための手段として、請求項１に記載した発明は、容器口部に嵌合されるキャップ本体を備えた、合成樹脂製のキャップであって、該キャップ本体は、前記容器口部の内壁面に嵌合される筒状壁部から一体的に延び、内容物の吐出通路を有する筒状案内部を備えた主キャップ体と、該主キャップ体の筒状壁部内に配置され、径方向略中央部に上方に向かって半球状に突設される弁座部の周りに前記容器口部と連通する吐出孔を有するベース壁状体と、該ベース壁状体の上方に配置され、前記弁座部から離脱または着座して前記吐出孔を開閉する逆止弁と、を備え、前記逆止弁は、弾性合成樹脂からなり、前記ベース壁状体の弁座部から離脱または着座する、該弁座部に向かって付勢された環状弁部と、該環状弁部の径方向中央部で前記吐出通路の直下に配置され、前記吐出孔からの内容物が流通する流通孔と、を備えたことを特徴とするものである。
請求項１の発明では、内容物の使用時には、容器の胴部を圧搾して容器に内圧を加えると、容器の内圧により逆止弁が弾性変形して環状弁部が弁座部から離脱して、ベース壁状体の吐出孔からの内容物が、自然な状態（塊状）で、主キャップ体の吐出通路の直下に近接して配置される流通孔からスムーズに吐出通路へ導かれて外部に吐出される。一方、内容物の使用後容器への内圧が解除されると、逆止弁が復元して環状弁部が弁座部に着座するために、ベース壁状体の吐出孔が閉塞されて、迅速に容器内を密封状態に復帰させることができ、空気の容器内への流入を抑制することができる。 The present invention provides, as means for solving the above-mentioned problems, the invention described in claim 1 is a cap made of a synthetic resin provided with a cap body fitted to a container mouth portion, and the cap body is A main cap body having a cylindrical guide portion integrally extending from a cylindrical wall portion fitted to the inner wall surface of the container mouth portion and having a discharge passage for contents, and the cylindrical wall of the main cap body A base wall-like body having a discharge hole communicating with the container mouth portion around a valve seat portion disposed in the portion and projecting in a hemispherical shape upward in a substantially central portion in the radial direction, and the base wall-like body And a check valve that opens or closes the discharge hole by detaching from or seating on the valve seat portion, and the check valve is made of an elastic synthetic resin, and the valve seat of the base wall-shaped body An annular valve portion biased toward the valve seat portion, which is detached or seated from the portion, and the annular valve portion Are arranged in the radial direction central portion immediately below the discharge passage, the contents from the discharge port is characterized in that and a flow hole circulating.
In the first aspect of the present invention, when the contents are used, if the body portion of the container is squeezed and an internal pressure is applied to the container, the check valve is elastically deformed by the internal pressure of the container and the annular valve portion is detached from the valve seat portion. The contents from the discharge holes of the base wall-like body are naturally guided (in the form of a lump) and are smoothly guided to the discharge passage from the flow holes arranged in the immediate vicinity of the discharge passage of the main cap body. Discharged. On the other hand, when the internal pressure to the container is released after the contents are used, the check valve is restored and the annular valve portion is seated on the valve seat portion. The inside of the container can be returned to the sealed state, and the inflow of air into the container can be suppressed.

請求項２に記載した発明は、請求項１の発明において、前記逆止弁は、前記筒状壁部の内壁面に当接する筒状支持部を設け、該筒状支持部の内壁面から一体的に径方向中心に向かって延びる環状弾性部を設け、前記環状弁部が前記環状弾性部の径方向中央部に設けられ、前記ベース壁状体の吐出孔は、前記逆止弁の前記筒状支持部の内側に配置されることを特徴とするものである。
請求項２の発明では、容器の胴部を圧搾して容器の内圧により逆止弁が弾性変形して環状弁部がベース壁状体の弁座部から離脱すると、ベース壁状体の吐出孔が開放されて、適量の内容物が容器口部内からベース壁状体の吐出孔を経て逆止弁の環状弾性部に干渉して、逆止弁の環状弁部とベース壁状体の弁座部との間の隙間から逆止弁の流通孔及び主キャップ体の吐出通路を経て外部にスムーズに吐出される。 According to a second aspect of the present invention, in the first aspect of the invention, the check valve includes a cylindrical support portion that contacts the inner wall surface of the cylindrical wall portion, and is integrated with the inner wall surface of the cylindrical support portion. An annular elastic portion extending toward the center in the radial direction is provided, the annular valve portion is provided at a radial central portion of the annular elastic portion, and the discharge hole of the base wall-shaped body is formed by the cylinder of the check valve. It arrange | positions inside a shape support part, It is characterized by the above-mentioned.
According to the second aspect of the present invention, when the body of the container is squeezed and the check valve is elastically deformed by the internal pressure of the container and the annular valve part is detached from the valve seat part of the base wall-like body, the discharge hole of the base wall-like body Is opened, and an appropriate amount of content interferes with the annular elastic portion of the check valve from the inside of the container mouth through the discharge hole of the base wall-like body, so that the annular valve portion of the check valve and the valve seat of the base wall-like body The air is smoothly discharged to the outside through the clearance hole of the check valve and the discharge hole of the main cap body from the gap between the first and second parts.

本発明のキャップによれば、内容物の使用時には、容器の内圧により逆止弁が弾性変形して環状弁部が弁座部から離脱して、ベース壁状体の吐出孔からの内容物を、自然な状態でスムーズに逆止弁の流通孔から主キャップ体の吐出通路に導いて、外部に吐出させることができる。内容物の使用後は、使用者が手で操作することなく、迅速に容器内を密封状態に復帰させることができる。   According to the cap of the present invention, when the contents are used, the check valve is elastically deformed by the internal pressure of the container and the annular valve part is detached from the valve seat part, and the contents from the discharge hole of the base wall-like body are removed. In a natural state, it can be smoothly led from the check valve flow hole to the discharge passage of the main cap body and discharged to the outside. After the contents are used, the inside of the container can be quickly returned to the sealed state without any manual operation by the user.

図１は、本発明の実施の形態に係るキャップを示す断面図である。FIG. 1 is a cross-sectional view showing a cap according to an embodiment of the present invention. 図２の（ａ）は、図１の本キャップの構成で、蓋体及び主キャップ体の平面図であり、（ｂ）は、（ａ）の断面図である。2A is a plan view of the lid body and the main cap body, and FIG. 2B is a cross-sectional view of FIG. 図３の（ａ）は、図１の本キャップの構成である逆止弁の平面図であり、（ｂ）は、（ａ）のＡ−Ａ線に沿う断面図である。3A is a plan view of a check valve that is the configuration of the main cap of FIG. 1, and FIG. 3B is a cross-sectional view taken along the line AA in FIG. 図４（ａ）は、図１の本キャップの構成であるベース壁状体の平面図であり、（ｂ）は、（ａ）のＢ−Ｂ線に沿う断面図である。4A is a plan view of a base wall-like body that is the configuration of the cap of FIG. 1, and FIG. 4B is a cross-sectional view taken along line BB in FIG. 図５は、内容物を使用する際の本キャップの作用を段階的に示した図である。FIG. 5 is a diagram showing the operation of the cap in stages when using the contents.

以下、本発明を実施するための形態を図１〜図５に基づいて詳細に説明する。
本発明の実施の形態に係るキャップ１は、合成樹脂から形成されたものであって、図１に示すように、容器２の容器口部３に嵌合され、内容物の吐出孔３２を有するキャップ本体４と、該キャップ本体４を構成する主キャップ体１０にヒンジ６を介して連結される蓋体５とから構成される。後で詳述するが、本キャップ１は、蓋体５が連結される主キャップ体１０、ベース壁状体１１及び逆止弁１２の三つの構成部材を組み立てて構成される。
なお、蓋体５をヒンジ６によりキャップ本体４に一体的に連結せずに、別体として構成してもよい。さらに、後述する逆止弁１２により容器２内の密封状態が維持されているので、蓋体５を構成部材として必ずしも備える必要はない。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to FIGS.
The cap 1 according to the embodiment of the present invention is formed of a synthetic resin, and is fitted into the container mouth 3 of the container 2 and has a discharge hole 32 for contents as shown in FIG. A cap body 4 and a lid body 5 connected to a main cap body 10 constituting the cap body 4 via a hinge 6 are configured. As will be described in detail later, the cap 1 is configured by assembling three constituent members: a main cap body 10 to which the lid body 5 is connected, a base wall-like body 11 and a check valve 12.
In addition, you may comprise the cover body 5 as a different body, without integrally connecting with the cap main body 4 by the hinge 6. FIG. Furthermore, since the sealed state in the container 2 is maintained by the check valve 12 to be described later, it is not always necessary to provide the lid 5 as a constituent member.

図１に示すように、容器２は、例えばチューブ容器など変形し易い容器であり、その内部には液状内容物や粘性を有する流動性内容物が充填される。この内容物は、例えば、醤油、オリーブオイル、ドレッシング、マヨネーズ、ケチャップ、とんかつ用ソース、ペースト状マスタード等が挙げられる。容器２は、その胴部２ａを圧搾するなどして内圧を加えることで内容物を外部に吐出させるタイプのものである。容器口部３は、円筒状に形成される。該容器口部３の下部外壁面には雄ねじ部７が形成される。容器口部３の上部には、周壁部全体が内方に突出する嵌合壁部８が形成される。   As shown in FIG. 1, the container 2 is a container that is easily deformed, such as a tube container, and is filled with a liquid content or a fluid content having viscosity. Examples of the contents include soy sauce, olive oil, dressing, mayonnaise, ketchup, tonkatsu sauce, pasty mustard and the like. The container 2 is of a type that discharges the contents to the outside by applying an internal pressure such as by squeezing the body 2a. The container mouth 3 is formed in a cylindrical shape. A male screw portion 7 is formed on the lower outer wall surface of the container mouth portion 3. A fitting wall portion 8 is formed at the upper portion of the container mouth portion 3 so that the entire peripheral wall portion protrudes inward.

図１に示すように、キャップ本体４は、容器口部３の内壁面に嵌合される円筒状内側壁部１４から一体的に延び、内容物の吐出通路２３を有する円筒状案内部１５を備えた円筒状の主キャップ体１０と、該主キャップ体１０の円筒状内側壁部１４内に配置され、径方向略中央部に上方に向かって半球状に突設される弁座部３０及び該弁座部３０の周りに容器口部３内と連通する複数の吐出孔３２を有するベース壁状体１１と、該ベース壁状体１１の上方に配置され、環状弁部３７が弁座部３０から離脱または着座して各吐出孔３２を開閉する逆止弁１２とを備えて構成される。   As shown in FIG. 1, the cap body 4 extends integrally from a cylindrical inner wall portion 14 fitted to the inner wall surface of the container mouth portion 3, and includes a cylindrical guide portion 15 having a discharge passage 23 for contents. A cylindrical main cap body 10 provided, and a valve seat portion 30 disposed in a cylindrical inner wall portion 14 of the main cap body 10 and projecting in a hemispherical shape in a substantially central portion in the radial direction; A base wall 11 having a plurality of discharge holes 32 communicating with the inside of the container mouth 3 around the valve seat 30, and disposed above the base wall 11, an annular valve 37 is a valve seat And a check valve 12 that opens or closes each discharge hole 32 by being separated from or seated on 30.

図１及び図２に示すように、主キャップ体１０は全体として円筒状に形成され、容器口部３に螺合され、下方に向かって延びる円筒状外側壁部１３と、該円筒状外側壁部１３の内側に同心状に配置され、下方に向かって延びる円筒状内側壁部１４と、該円筒状内側壁部１４の内側に同心状に配置され、上方に向かって延びる円筒状案内部１５と、円筒状外側壁部１３の上端、円筒状内側壁部１４の上端及び案内円筒状部の下端を接続する環状水平壁部１６とから構成される。   As shown in FIGS. 1 and 2, the main cap body 10 is formed in a cylindrical shape as a whole, is screwed into the container mouth 3 and extends downward, and the cylindrical outer wall. A cylindrical inner wall portion 14 disposed concentrically inside the portion 13 and extending downward, and a cylindrical guide portion 15 disposed concentrically inside the cylindrical inner wall portion 14 and extending upward. And an annular horizontal wall portion 16 connecting the upper end of the cylindrical outer wall portion 13, the upper end of the cylindrical inner wall portion 14, and the lower end of the guide cylindrical portion.

円筒状外側壁部１３の内壁面には、軸方向全域に、容器口部３に設けた雄ねじ部７に螺合する雌ねじ部２０が形成される。円筒状内側壁部１４の下端内壁面には、その周方向全域から一体的に径方向中心に向かって斜め下方に突設されるストッパ部２１が形成される。円筒状内側壁部１４は円筒状外側壁部１３よりその高さが低い。円筒状内側壁部１４と円筒状外側壁部１３との間に環状空間２２が形成される。円筒状案内部１５は、本キャップ１の径方向中央部に配置され、その内部に後述する各吐出孔３２からの内容物の吐出通路２３を有している。円筒状案内部１５は、その基端部側に設けられ、基端に向かって拡径する拡径円筒部１５ａと、その先端部側に設けられる同一径円筒部１５ｂとが一体的に接続されて構成される。この拡径円筒部１５ａの下端に環状水平壁部１６が一体的に接続される。   On the inner wall surface of the cylindrical outer wall portion 13, a female screw portion 20 that is screwed into the male screw portion 7 provided in the container mouth portion 3 is formed in the entire axial direction. On the inner wall surface at the lower end of the cylindrical inner wall portion 14, a stopper portion 21 is formed that protrudes obliquely downward from the entire circumferential direction integrally toward the radial center. The height of the cylindrical inner wall portion 14 is lower than that of the cylindrical outer wall portion 13. An annular space 22 is formed between the cylindrical inner wall portion 14 and the cylindrical outer wall portion 13. The cylindrical guide portion 15 is disposed in the central portion of the cap 1 in the radial direction, and has a discharge passage 23 for contents from each discharge hole 32 to be described later. The cylindrical guide portion 15 is provided on the base end side thereof, and an enlarged diameter cylindrical portion 15a that increases in diameter toward the base end and an identical diameter cylindrical portion 15b provided on the tip end side thereof are integrally connected. Configured. The annular horizontal wall portion 16 is integrally connected to the lower end of the enlarged diameter cylindrical portion 15a.

環状水平壁部１６の上面で、その外周に円筒状案内部１５と同心状に円筒状嵌合壁部２５が上方に向かって延びている。該円筒状嵌合壁部２５の上部外壁面には、周方向に沿って環状に延びる突条係止部２６が形成される。該円筒状嵌合壁部２５の外壁面に蓋体５が嵌合される。また、環状水平壁部１６の下面には、円筒状外側壁部１３と円筒状内側壁部１４との間に、これら円筒状外側壁部１３及び円筒状内側壁部１４と同心状に環状シール部２７が垂設される。該環状シール部２７の下端が容器口部３の上端面に密着される。   On the upper surface of the annular horizontal wall 16, a cylindrical fitting wall 25 extends concentrically with the cylindrical guide 15 on the outer periphery thereof. On the upper outer wall surface of the cylindrical fitting wall portion 25, a ridge locking portion 26 extending in an annular shape along the circumferential direction is formed. The lid 5 is fitted to the outer wall surface of the cylindrical fitting wall portion 25. Further, an annular seal is formed on the lower surface of the annular horizontal wall portion 16 between the cylindrical outer wall portion 13 and the cylindrical inner wall portion 14 concentrically with the cylindrical outer wall portion 13 and the cylindrical inner wall portion 14. The part 27 is suspended. The lower end of the annular seal portion 27 is in close contact with the upper end surface of the container mouth portion 3.

図１及び図４に示すように、ベース壁状体１１は、円板状に形成される。ベース壁状体１１の外径は、主キャップ体１０の円筒状内側壁部１４の内径と略一致する。ベース壁状体１１の径方向中央部には上方に突設する半球状の弁座部３０が形成される。該弁座部３０の下面には半球状凹部３１が形成される。弁座部３０の周りには複数の吐出孔３２が形成される。各吐出孔３２は容器口部３と連通する。本実施の形態では吐出孔３２は４箇所形成される。各吐出孔３２は、平面視形状が所定幅を有する円弧状に形成される。なお、本実施形態では、各吐出孔３２を円弧状に形成したが、円形状等他の形状を採用してもよく、その数量についても限定されることはない。また、複数の吐出孔３２に代わって環状に延びる所定幅のスリット孔を採用してもよい。   As shown in FIG.1 and FIG.4, the base wall-shaped body 11 is formed in disk shape. The outer diameter of the base wall-shaped body 11 substantially matches the inner diameter of the cylindrical inner wall portion 14 of the main cap body 10. A hemispherical valve seat 30 projecting upward is formed at the central portion in the radial direction of the base wall 11. A hemispherical recess 31 is formed on the lower surface of the valve seat 30. A plurality of discharge holes 32 are formed around the valve seat portion 30. Each discharge hole 32 communicates with the container opening 3. In the present embodiment, four discharge holes 32 are formed. Each discharge hole 32 is formed in an arc shape having a predetermined width in plan view. In addition, in this embodiment, although each discharge hole 32 was formed in circular arc shape, other shapes, such as circular shape, may be employ | adopted and the quantity is not limited. Further, instead of the plurality of discharge holes 32, slit holes having a predetermined width extending in an annular shape may be employed.

図１及び図３に示すように、逆止弁１２は、弾性合成樹脂で形成され、主キャップ体１０の円筒状内側壁部１４の内壁面に当接する円筒状支持部３５と、該円筒状支持部３５の内壁面の周方向全域から一体的に径方向中心に向かって延びる環状弾性部３６と、該環状弾性部３６の径方向中央部に一体的に設けられ、ベース壁状体１１の弁座部３０に対し離脱または着座してベース壁状体１１の各吐出孔３２に連通する流通孔３８を有する環状弁部３７とから構成される。   As shown in FIGS. 1 and 3, the check valve 12 is made of an elastic synthetic resin, and has a cylindrical support portion 35 that contacts the inner wall surface of the cylindrical inner wall portion 14 of the main cap body 10, and the cylindrical shape. An annular elastic portion 36 that integrally extends from the entire circumferential surface of the inner wall surface of the support portion 35 toward the radial center, and is provided integrally at the radial central portion of the annular elastic portion 36, so that the base wall 11 An annular valve portion 37 having a flow hole 38 that is separated from or seated on the valve seat portion 30 and communicates with each discharge hole 32 of the base wall 11 is formed.

逆止弁１２の円筒状支持部３５の外径は、主キャップ体１０の円筒状内側壁部１４の内径と略一致する。円筒状支持部３５の上部内壁面の周方向全域から環状弾性部３６が径方向中心に向かって延びている。該環状弾性部３６は、径方向中心に向かって斜め下方にやや湾曲して延びている。該環状弾性部３６は、容器２の内圧によって、その基端部から湾曲部にかけて弾性変形するものである。該環状弾性部３６の径方向中央部には、ベース壁状体１１の弁座部３０に着座する環状弁部３７が形成される。環状弁部３７は水平方向に延びる。該環状弁部３７の径方向中央部に、各吐出孔３２と連通して各吐出孔３２からの内容物が流通する略円形状の流通孔３８が形成される。なお、環状弁部３７は、流通孔３８の周辺に位置する部位を指し、環状弁部３７は、流通孔３８に向かって肉薄（テーパ）になるように形成することが好ましい。また、逆止弁１２を本キャップ１として組み付ける前の状態（図３（ｂ）参照）では、流通孔３８を含む環状弁部３７の下端は、円筒状支持部３５の下端よりも下方に位置する。なお、本実施形態では、逆止弁１２を本キャップ１として組み付ける前の状態にて、流通孔３８を含む環状弁部３７の下端が円筒状支持部３５の下端よりも下方に位置しているが、図１の状態、すなわち逆止弁１２を本キャップ１として組み付けた後、環状弾性部３６自体の下向きの付勢力（復元力）により、逆止弁１２の環状弁部３７の下壁面がベース壁状体１１の弁座部３０の上壁面に隙間なく密着して押圧できれば、必ずしも、組み付け前にて、環状弁部３７の下端が、円筒状支持部３５の下端よりも下方に位置する必要はない。   The outer diameter of the cylindrical support portion 35 of the check valve 12 substantially matches the inner diameter of the cylindrical inner wall portion 14 of the main cap body 10. An annular elastic portion 36 extends from the entire circumferential area of the upper inner wall surface of the cylindrical support portion 35 toward the radial center. The annular elastic portion 36 extends slightly curved and obliquely downward toward the radial center. The annular elastic portion 36 is elastically deformed from the base end portion to the curved portion by the internal pressure of the container 2. An annular valve portion 37 seated on the valve seat portion 30 of the base wall 11 is formed at the radial center of the annular elastic portion 36. The annular valve portion 37 extends in the horizontal direction. A substantially circular flow hole 38 communicating with each discharge hole 32 and allowing the contents from each discharge hole 32 to flow therethrough is formed in the central portion in the radial direction of the annular valve portion 37. The annular valve portion 37 refers to a portion located around the circulation hole 38, and the annular valve portion 37 is preferably formed so as to become thinner (tapered) toward the circulation hole 38. In the state before the check valve 12 is assembled as the main cap 1 (see FIG. 3B), the lower end of the annular valve portion 37 including the flow hole 38 is positioned below the lower end of the cylindrical support portion 35. To do. In this embodiment, the lower end of the annular valve portion 37 including the flow hole 38 is positioned below the lower end of the cylindrical support portion 35 in a state before the check valve 12 is assembled as the main cap 1. However, after the check valve 12 is assembled as the main cap 1 in the state of FIG. 1, the lower wall surface of the annular valve portion 37 of the check valve 12 is caused by the downward biasing force (restoring force) of the annular elastic portion 36 itself. If the upper wall surface of the valve seat portion 30 of the base wall-like body 11 can be pressed closely without any gap, the lower end of the annular valve portion 37 is necessarily positioned below the lower end of the cylindrical support portion 35 before assembly. There is no need.

図１及び図２に示すように、蓋体５は、主キャップ体１０の円筒状外側壁部１３にヒンジ６を介して一体的に接続されている。該蓋体５は、ヒンジ６を介して主キャップ体１０の円筒状外側壁部１３の外壁面に接続される円筒状の胴部４０と、該胴部４０の上端の周方向全域に一体的に接続される天面部４１とから構成される。天面部４１の径方向中央部には、主キャップ体１０の円筒状案内部１５の上端内に緊密に嵌合する円筒状密着部４２が形成される。胴部４０の下部内壁面には、周方向に環状に延びる突条係止部４３が形成される。   As shown in FIGS. 1 and 2, the lid 5 is integrally connected to the cylindrical outer wall portion 13 of the main cap body 10 via a hinge 6. The lid 5 is integrated with the cylindrical body 40 connected to the outer wall surface of the cylindrical outer wall 13 of the main cap body 10 via the hinge 6 and the entire circumferential direction of the upper end of the body 40. It is comprised from the top | upper surface part 41 connected to. A cylindrical contact portion 42 that fits tightly into the upper end of the cylindrical guide portion 15 of the main cap body 10 is formed at the central portion in the radial direction of the top surface portion 41. On the lower inner wall surface of the body portion 40, a protrusion locking portion 43 that extends in a ring shape in the circumferential direction is formed.

次に、本キャップ１を組み立て、容器口部３に装着する方法を説明する。
図１を参照して、まず、主キャップ体１０の円筒状内側壁部１４の内部にその下方から逆止弁１２を組み込む。詳しくは、ストッパ部２１の内径を若干拡げながら、逆止弁１２の円筒状支持部３５の外壁面がキャップ体１０の円筒状内側壁部１４の内壁面に沿うようにして、逆止弁１２の上端が主キャップ体１０の環状水平壁部１６の下面に当接するまで押し込む。この結果、逆止弁１２の流通孔３８が、主キャップ体１０の円筒状案内部１５の吐出通路２３の下方に配置される。 Next, a method for assembling the cap 1 and attaching it to the container mouth 3 will be described.
With reference to FIG. 1, first, the check valve 12 is assembled into the inside of the cylindrical inner wall portion 14 of the main cap body 10 from below. Specifically, while slightly increasing the inner diameter of the stopper portion 21, the outer wall surface of the cylindrical support portion 35 of the check valve 12 extends along the inner wall surface of the cylindrical inner wall portion 14 of the cap body 10. The upper end of the main cap body 10 is pushed in until it contacts the lower surface of the annular horizontal wall 16 of the main cap body 10. As a result, the flow hole 38 of the check valve 12 is disposed below the discharge passage 23 of the cylindrical guide portion 15 of the main cap body 10.

次に、ベース壁状体１１を、逆止弁１２の下方からストッパ部２１の内径を若干拡げながら、その外壁面が主キャップ体１０の円筒状内側壁部１４の内壁面に沿うように、且つベース壁状体１１の弁座部３０の上壁面を逆止弁１２の環状弁部３０に当接させて逆止弁１２の環状弾性部３６を弾性変形させるようにして一体的に押し込み、ベース壁状体１１を円筒状内側壁部１４の下端に設けたストッパ部２１により係止させる。この結果、ベース壁状体１１に設けた各吐出孔３２は、逆止弁１２の円筒状支持部３５内で環状弾性部３６の下方に配置されるようになる。また、逆止弁１２の環状弁部３７の下端が円筒状支持部３５の下端よりも上方に位置する、詳しくは、環状弁部３７が円筒状支持部３５の上下方向略中間部に位置するために、環状弾性部３６自体の下向きの付勢力（復元力）により、逆止弁１２の環状弁部３７の下壁面がベース壁状体１１の弁座部３０の上壁面に隙間なく密着して押圧するようになり、さらに、逆止弁１２の流通孔３８が、主キャップ体１０の円筒状案内部１５の吐出通路２３の直下に近接して配置されるようになる。これにより、キャップ本体４の組み立てが完了する。   Next, while slightly expanding the inner diameter of the stopper portion 21 from below the check valve 12, the outer wall surface of the base wall member 11 extends along the inner wall surface of the cylindrical inner wall portion 14 of the main cap body 10. In addition, the upper wall surface of the valve seat portion 30 of the base wall 11 is brought into contact with the annular valve portion 30 of the check valve 12 so that the annular elastic portion 36 of the check valve 12 is elastically deformed, and is integrally pushed in. The base wall 11 is locked by a stopper 21 provided at the lower end of the cylindrical inner wall 14. As a result, each discharge hole 32 provided in the base wall-shaped body 11 is disposed below the annular elastic portion 36 in the cylindrical support portion 35 of the check valve 12. In addition, the lower end of the annular valve portion 37 of the check valve 12 is positioned above the lower end of the cylindrical support portion 35. Specifically, the annular valve portion 37 is positioned at a substantially intermediate portion in the vertical direction of the cylindrical support portion 35. Therefore, the lower wall surface of the annular valve portion 37 of the check valve 12 is closely attached to the upper wall surface of the valve seat portion 30 of the base wall 11 by the downward biasing force (restoring force) of the annular elastic portion 36 itself. Further, the flow hole 38 of the check valve 12 is disposed in the vicinity of the discharge passage 23 of the cylindrical guide portion 15 of the main cap body 10. Thereby, the assembly of the cap body 4 is completed.

次に、キャップ本体４に蓋体５を被冠する際には、ヒンジ６を折り曲げて蓋体５をキャップ本体４の上方から覆うように被せる。すると、蓋体５の胴部４０に設けた突条係止部４３が、キャップ本体４の円筒状嵌合壁部２５に設けた突条係止部２６を乗り越えるように係合すると共に、蓋体５の天面部４１に設けた円筒状密着部４２がキャップ本体４（主キャップ体１０）の円筒状案内部１５の同一径円筒部１５ｂの上端内部に緊密に嵌合される。   Next, when the cap body 4 is covered with the lid body 5, the hinge 6 is bent so that the lid body 5 is covered from above the cap body 4. Then, the protrusion locking part 43 provided on the body part 40 of the lid 5 is engaged so as to get over the protrusion locking part 26 provided on the cylindrical fitting wall part 25 of the cap body 4, and the lid A cylindrical contact portion 42 provided on the top surface portion 41 of the body 5 is tightly fitted inside the upper end of the same diameter cylindrical portion 15b of the cylindrical guide portion 15 of the cap body 4 (main cap body 10).

次に、キャップ本体４を容器口部３に装着する際には、容器口部３の周壁部を、主キャップ体１０の円筒状内側壁部１４と円筒状外側壁部１３との間の環状空間２２内に挿入して、容器口部３の外壁面に設けた雄ねじ部７と、主キャップ体１０の円筒状外側壁部１３の内壁面に設けた雌ねじ部２０とを螺合する。すると、主キャップ体１０の円筒状内側壁部１４の外壁面が容器口部３の嵌合壁部８により圧着され、しかも、主キャップ体１０の環状水平壁部１６の下面から垂設された環状シール部２７の下端が、容器口部３の上端面に密着される。このようにして、本キャップ１の容器口部３への装着が完了する。なお、本実施形態では、キャップ１を容器口部３へ螺合により装着する方法を説明したが、他の装着方法例えば打栓方式により装着してもよい。   Next, when the cap body 4 is attached to the container mouth portion 3, the peripheral wall portion of the container mouth portion 3 is formed in an annular shape between the cylindrical inner wall portion 14 and the cylindrical outer wall portion 13 of the main cap body 10. Inserted into the space 22, the male screw portion 7 provided on the outer wall surface of the container mouth 3 and the female screw portion 20 provided on the inner wall surface of the cylindrical outer wall portion 13 of the main cap body 10 are screwed together. Then, the outer wall surface of the cylindrical inner wall portion 14 of the main cap body 10 is crimped by the fitting wall portion 8 of the container mouth portion 3, and is suspended from the lower surface of the annular horizontal wall portion 16 of the main cap body 10. The lower end of the annular seal portion 27 is in close contact with the upper end surface of the container mouth portion 3. In this way, the attachment of the cap 1 to the container mouth 3 is completed. In the present embodiment, the method of attaching the cap 1 to the container opening 3 by screwing has been described. However, other attachment methods such as a plugging method may be used.

次に、本発明の実施の形態に係るキャップ１の作用を説明する。
内容物を使用する際には、まず、図５（ａ）に示すように、蓋体５を開いて、キャップ本体４の主キャップ体１０の円筒状案内部１５を外部に露出させる。
次に、使用者が容器２の胴部２ａを圧搾して容器２に内圧を加える。すると、図５（ｂ）に示すように、容器２の内圧がベース壁状体１１の各吐出孔３２を通じて逆止弁１２の環状弾性部３６に作用することで、逆止弁１２の環状弾性部３６がその基端部から湾曲部にかけて弾性変形して、環状弁部３７が弁座部３０の上壁面から離脱すると共に流通孔３８が若干拡径して、流通孔３８全域が弁座部３０の上方で、主キャップ体１０の円筒状案内部１５の拡径円筒部１５ａ内に入り込むようになる。この結果、ベース壁状体１１の各吐出孔３２が、開放された流通孔３８に連通するので、加圧された内容物が容器口部３内からベース壁状体１１の各吐出孔３２を経て環状弾性部３６に干渉しつつ、逆止弁１２の環状弁部３７とベース壁状体１１の弁座部３０との間の隙間から逆止弁１２の流通孔３８及び主キャップ体１０の円筒状案内部１５の吐出通路２３を経て外部にスムーズに吐出される。この時、図５（ｂ）からよく解るように、容器２内に内圧が加わると、逆止弁１２の流通孔３８全域が弁座部３０の上方で、円筒状案内部１５の拡径円筒部１５ａ内に位置するので、粘性を有する流動性内容物の場合でも、各吐出孔３２からの内容物が自然な状態（塊状）で、しかも、流通孔３８からスムーズに円筒状案内部１５の拡径円筒部１５ａ内に導かれ、同一径円筒部１５ｂ内から外部に吐出される。なお、本実施形態では、容器２内に内圧が加わると、逆止弁１２の流通孔３８全域が弁座部３０の上方で、円筒状案内部１５の拡径円筒部１５ａに入り込むように構成しているが、容器２内に内圧が加わった際、逆止弁１２の流通孔３８全域が弁座部３０の上方で、円筒状案内部１５の拡径円筒部１５ａに限りなく近接するように構成すれば、流通孔３８からの内容物を円筒状案内部１５の拡径円筒部１５ａ内にスムーズに導くことができる。 Next, the operation of the cap 1 according to the embodiment of the present invention will be described.
When using the contents, first, as shown in FIG. 5A, the lid 5 is opened to expose the cylindrical guide portion 15 of the main cap body 10 of the cap body 4 to the outside.
Next, the user squeezes the body 2 a of the container 2 to apply internal pressure to the container 2. Then, as shown in FIG. 5 (b), the inner pressure of the container 2 acts on the annular elastic portion 36 of the check valve 12 through each discharge hole 32 of the base wall-shaped body 11, thereby causing the annular elasticity of the check valve 12. The portion 36 is elastically deformed from the base end portion to the curved portion, the annular valve portion 37 is detached from the upper wall surface of the valve seat portion 30 and the flow hole 38 is slightly enlarged, so that the whole flow hole 38 is the valve seat portion. Above 30, it enters into the enlarged diameter cylindrical portion 15 a of the cylindrical guide portion 15 of the main cap body 10. As a result, each discharge hole 32 of the base wall-shaped body 11 communicates with the open circulation hole 38, so that the pressurized content passes through each discharge hole 32 of the base wall-shaped body 11 from the container mouth 3. Through the gap between the annular valve portion 37 of the check valve 12 and the valve seat portion 30 of the base wall 11 while interfering with the annular elastic portion 36, the flow hole 38 of the check valve 12 and the main cap body 10 The liquid is smoothly discharged to the outside through the discharge passage 23 of the cylindrical guide portion 15. At this time, as is well understood from FIG. 5B, when an internal pressure is applied to the container 2, the entire flow hole 38 of the check valve 12 is located above the valve seat portion 30, and the cylindrical guide portion 15 has an enlarged cylinder. Since it is located in the portion 15a, even in the case of fluid content having viscosity, the content from each discharge hole 32 is in a natural state (in the form of a lump), and the cylindrical guide portion 15 smoothly flows from the flow hole 38. It is guided into the enlarged diameter cylindrical portion 15a and discharged outside from the same diameter cylindrical portion 15b. In the present embodiment, when the internal pressure is applied to the container 2, the entire flow hole 38 of the check valve 12 enters the enlarged diameter cylindrical portion 15 a of the cylindrical guide portion 15 above the valve seat portion 30. However, when internal pressure is applied to the container 2, the entire flow hole 38 of the check valve 12 is as close as possible to the enlarged diameter cylindrical portion 15 a of the cylindrical guide portion 15 above the valve seat portion 30. If it comprises, the content from the circulation hole 38 can be smoothly guide | induced in the enlarged diameter cylindrical part 15a of the cylindrical guide part 15. FIG.

その後、内容物を使用した後容器２の胴部２ａへの圧搾を止めると、容器２への内圧が解除されるために、図５（ｃ）に示すように、逆止弁１２の環状弾性部３６が弾性力により復元して、環状弁部３７がベース壁状体１１の弁座部３０に着座して、ベース壁状体１１の各吐出孔３２が閉塞される。この時、逆止弁１２の環状弁部３７は、環状弾性部３６自体の下向きの付勢力（復元力）により弁座部３０を押圧するように付勢される。この結果、使用直後、使用者が手でキャップ１を操作することなく迅速に容器２内を密封状態に復帰させることができ、空気の容器２内への流入を抑制することができる。   Thereafter, when the squeezing to the body 2a of the container 2 is stopped after the contents are used, the internal pressure to the container 2 is released. Therefore, as shown in FIG. The part 36 is restored by the elastic force, the annular valve part 37 is seated on the valve seat part 30 of the base wall-like body 11, and the discharge holes 32 of the base wall-like body 11 are closed. At this time, the annular valve portion 37 of the check valve 12 is biased so as to press the valve seat portion 30 by a downward biasing force (restoring force) of the annular elastic portion 36 itself. As a result, immediately after use, the inside of the container 2 can be quickly returned to the sealed state without the user operating the cap 1 by hand, and the inflow of air into the container 2 can be suppressed.

次に、ヒンジ６を折り曲げて蓋体５を、キャップ本体４の上方から覆うように被せれば、蓋体５の胴部４０に設けた突条係止部４３が、主キャップ体１０の円筒状嵌合壁部２５に設けた突条係止部２６を乗り越えるように係合すると共に、蓋体５の天面部４１に設けた円筒状密着部４２が、主キャップ体１０の円筒状案内部１５の同一径円筒部１５ｂの上端内部に緊密に嵌合される。この結果、キャップ本体４（主キャップ体１０）の円筒状案内部１５内の吐出通路２３への異物の混入を抑制すると共に、容器２内を二重で密封することができる。   Next, when the hinge 6 is bent and the lid 5 is covered so as to cover the cap body 4 from above, the protrusion locking portion 43 provided on the trunk portion 40 of the lid 5 is the cylinder of the main cap body 10. The cylindrical contact portion 42 provided on the top surface portion 41 of the lid 5 is engaged with the projection engaging portion 26 provided on the shape fitting wall portion 25, and the cylindrical guide portion of the main cap body 10. 15 are fitted tightly inside the upper end of the cylindrical portion 15b having the same diameter. As a result, foreign matter can be prevented from entering the discharge passage 23 in the cylindrical guide portion 15 of the cap body 4 (main cap body 10), and the inside of the container 2 can be double sealed.

以上説明したように、本発明の実施の形態に係るキャップ１では、特に、キャップ本体４は、容器口部３の内壁面に嵌合される円筒状内側壁部１４から一体的に延び、内容物の吐出通路２３を有する円筒状案内部１５を備えた主キャップ体１０と、該主キャップ体１０の円筒状内側壁部１４内に配置され、径方向略中央部に上方に向かって半球状に突設される弁座部３０及び該弁座部３０の周りに配置され、容器口部３内と連通する各吐出孔３２を有するベース壁状体１１と、該ベース壁状体１１の上方に配置され、弁座部３０から離脱または着座して各吐出孔３２を開閉する逆止弁１２とを備え、該逆止弁１２は、弾性合成樹脂からなり、ベース壁状体１１の弁座部３０から離脱または着座する、該弁座部３０に向かって付勢された環状弁部３７と、該環状弁部３７の径方向中央部で吐出通路２３の直下に配置され、各吐出孔３２からの内容物が流通する流通孔３８とを備えている。これにより、内容物の使用時には、容器２の胴部２ａを圧搾して容器２に内圧を加えれば、容器２の内圧により、逆止弁１２が弾性変形して環状弁部３７がベース壁状体１１の弁座部３０から離脱されて各吐出孔３２が開放され、適量の内容物（加圧された内容物）が容器口部３から各吐出孔３２、流通孔３８及び吐出通路２３を経由して外部にスムーズに吐出される。しかも、本キャップ１では、内容物の使用時容器２に内圧が加わり、逆止弁１２の環状弁部３７がベース壁状体１１の弁座部３０から離脱した際、流通孔３８全域が弁座部３０の上方で、円筒状案内部１５の拡径円筒部１５ａ内に入り込む、または拡径円筒部１５ａに近接するように弾性変形するので、粘性を有する流動性内容物の場合でも、容器２内の内容物が自然な状態（塊状態）で、流通孔３８からスムーズに円筒状案内部１５（吐出通路２３）の拡径円筒部１５ａ内に導かれ、同一径円筒部１５ｂ内から外部に吐出される。一方、容器２への内圧が解除されると、逆止弁１２の環状弁部３７がベース壁状体１１の弁座部３０に着座することで各吐出孔３２が閉塞されるために、使用者が手でキャップ１を操作することなく、迅速に容器２内を密封状態に復帰させることができ、空気の容器２内への流入を抑制することができる。   As described above, in the cap 1 according to the embodiment of the present invention, in particular, the cap body 4 integrally extends from the cylindrical inner wall portion 14 fitted to the inner wall surface of the container mouth portion 3, and the contents A main cap body 10 having a cylindrical guide portion 15 having an object discharge passage 23 and a cylindrical inner wall portion 14 of the main cap body 10 are arranged hemispherically upward in a substantially central portion in the radial direction. A base wall 11 having a valve seat 30 projecting from the valve seat 30 and each discharge hole 32 disposed around the valve seat 30 and communicating with the inside of the container mouth 3, and above the base wall 11 And a check valve 12 that opens or closes each discharge hole 32 by being separated from or seated on the valve seat portion 30. The check valve 12 is made of an elastic synthetic resin, and the valve seat of the base wall-shaped body 11. An annular valve that is urged toward the valve seat portion 30 to be detached from or seated on the portion 30 37, is disposed immediately below the discharge passage 23 in the radial center portion of the annular valve portion 37, the contents from the discharge hole 32 and a flow hole 38 to be distributed. As a result, when the contents are used, if the body 2a of the container 2 is squeezed and an internal pressure is applied to the container 2, the check valve 12 is elastically deformed by the internal pressure of the container 2 and the annular valve portion 37 is shaped like a base wall. The discharge holes 32 are opened by being detached from the valve seat portion 30 of the body 11, and an appropriate amount of contents (pressurized contents) passes through the discharge holes 32, the flow holes 38 and the discharge passages 23 from the container mouth 3. It is smoothly discharged to the outside. In addition, in this cap 1, when the internal pressure is applied to the container 2 when the contents are used, and the annular valve portion 37 of the check valve 12 is detached from the valve seat portion 30 of the base wall 11, the entire flow hole 38 is valved. Even in the case of fluid contents having viscosity, the container is inserted into the enlarged cylindrical portion 15a of the cylindrical guide portion 15 or elastically deformed so as to be close to the enlarged cylindrical portion 15a above the seat portion 30. 2 in a natural state (a lump state), is smoothly guided from the flow hole 38 into the enlarged cylindrical portion 15a of the cylindrical guide portion 15 (discharge passage 23), and from the same diameter cylindrical portion 15b to the outside. Discharged. On the other hand, when the internal pressure to the container 2 is released, each discharge hole 32 is closed by the annular valve portion 37 of the check valve 12 being seated on the valve seat portion 30 of the base wall-like body 11. The person can quickly return the inside of the container 2 to the sealed state without operating the cap 1 by hand, and the inflow of air into the container 2 can be suppressed.

また、本発明の実施の形態に係るキャップ１では、キャップ本体４に被冠される蓋体５を備え、該蓋体５には、キャップ本体４の主キャップ体１０の円筒状案内部１５の上端内部に緊密に嵌合する円筒状密着部４２が形成されるので、内容物の使用後、キャップ本体４に蓋体５を被せることで、キャップ本体４の主キャップ体１０の円筒状案内部１５内の吐出通路２３への異物の混入を防ぐと共に、容器２内を二重で閉塞するために、容器２内の密封状態を確実にすることができる。   Further, the cap 1 according to the embodiment of the present invention includes a lid body 5 to be crowned by the cap body 4, and the lid body 5 includes a cylindrical guide portion 15 of the main cap body 10 of the cap body 4. Since the cylindrical contact portion 42 that fits tightly inside the upper end is formed, the cylindrical guide portion of the main cap body 10 of the cap body 4 is covered by covering the cap body 4 with the lid body 5 after use of the contents. In addition to preventing foreign matter from entering the discharge passage 23 in the container 15 and closing the container 2 in a double manner, the sealed state in the container 2 can be ensured.

１ キャップ，２ 容器，３ 容器口部，４ キャップ本体，１０ 主キャップ体，１１ ベース壁状体，１２ 逆止弁，１４ 円筒状内側壁部（筒状壁部），１５ 円筒状案内部，２３ 吐出通路，３０ 弁座部，３２ 吐出孔，３５ 筒状支持部，３６ 環状弾性部，３７ 環状弁部，３８ 流通孔   DESCRIPTION OF SYMBOLS 1 Cap, 2 Container, 3 Container mouth part, 4 Cap main body, 10 Main cap body, 11 Base wall-like body, 12 Check valve, 14 Cylindrical inner side wall part (cylindrical wall part), 15 Cylindrical guide part, 23 discharge passage, 30 valve seat, 32 discharge hole, 35 cylindrical support, 36 annular elastic part, 37 annular valve part, 38 flow hole

Claims (2)

容器口部に嵌合されるキャップ本体を備えた、合成樹脂製のキャップであって、
該キャップ本体は、
前記容器口部の内壁面に嵌合される筒状壁部から一体的に延び、内容物の吐出通路を有する筒状案内部を備えた主キャップ体と、
該主キャップ体の筒状壁部内に配置され、径方向略中央部に上方に向かって半球状に突設される弁座部の周りに前記容器口部と連通する吐出孔を有するベース壁状体と、
該ベース壁状体の上方に配置され、前記弁座部から離脱または着座して前記吐出孔を開閉する逆止弁と、を備え、
前記逆止弁は、弾性合成樹脂からなり、
前記ベース壁状体の弁座部から離脱または着座する、該弁座部に向かって付勢された環状弁部と、
該環状弁部の径方向中央部で前記吐出通路の直下に配置され、前記吐出孔からの内容物が流通する流通孔と、を備えたことを特徴とするキャップ。 A cap made of synthetic resin, with a cap body fitted to the container mouth,
The cap body is
A main cap body including a cylindrical guide portion integrally extending from a cylindrical wall portion fitted to the inner wall surface of the container mouth portion, and having a discharge passage for contents;
A base wall shape having a discharge hole communicating with the container mouth portion around a valve seat portion disposed in a cylindrical wall portion of the main cap body and projecting in a hemispherical shape upward in a substantially central portion in the radial direction. Body,
A check valve that is disposed above the base wall-like body and separates from or seats on the valve seat portion to open and close the discharge hole,
The check valve is made of an elastic synthetic resin,
An annular valve portion biased toward the valve seat portion, which is detached or seated from the valve seat portion of the base wall-shaped body;
A cap provided with a flow hole that is disposed immediately below the discharge passage at the radial center of the annular valve portion and through which the content from the discharge hole flows. 前記逆止弁は、前記筒状壁部の内壁面に当接する筒状支持部を設け、該筒状支持部の内壁面から一体的に径方向中心に向かって延びる環状弾性部を設け、前記環状弁部が前記環状弾性部の径方向中央部に設けられ、
前記ベース壁状体の吐出孔は、前記逆止弁の前記筒状支持部の内側に配置されることを特徴とする請求項１に記載のキャップ。
The check valve includes a cylindrical support portion that contacts the inner wall surface of the cylindrical wall portion, an annular elastic portion that extends integrally from the inner wall surface of the cylindrical support portion toward the radial center, and An annular valve portion is provided at the radial center of the annular elastic portion;
The cap according to claim 1, wherein the discharge hole of the base wall-shaped body is disposed inside the cylindrical support portion of the check valve.
JP2014100715A 2014-05-14 2014-05-14 cap Pending JP2015217952A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020121751A (en) * 2019-01-30 2020-08-13 日本クロージャー株式会社 Discharge cap
JP2020200077A (en) * 2019-06-10 2020-12-17 東京ライト工業株式会社 Cap and container
US11845588B2 (en) 2020-08-05 2023-12-19 Illinois Tool Works Inc. Pouch enclosure with filling slit

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS5284450U (en) * 1975-12-18 1977-06-23
JPS6346359U (en) * 1986-09-12 1988-03-29
JPH11192446A (en) * 1997-10-10 1999-07-21 L'oreal Sa Discharge head improved in air uptake, and housing and discharging unit provided with the same
JP2007246093A (en) * 2006-03-13 2007-09-27 Tokyo Raito Kogyo Kk Cap
JP2011098768A (en) * 2009-11-09 2011-05-19 Tokyo Raito Kogyo Kk Quantifying discharge cap

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Publication number Priority date Publication date Assignee Title
JPS5284450U (en) * 1975-12-18 1977-06-23
JPS6346359U (en) * 1986-09-12 1988-03-29
JPH11192446A (en) * 1997-10-10 1999-07-21 L'oreal Sa Discharge head improved in air uptake, and housing and discharging unit provided with the same
JP2007246093A (en) * 2006-03-13 2007-09-27 Tokyo Raito Kogyo Kk Cap
JP2011098768A (en) * 2009-11-09 2011-05-19 Tokyo Raito Kogyo Kk Quantifying discharge cap

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020121751A (en) * 2019-01-30 2020-08-13 日本クロージャー株式会社 Discharge cap
JP7246828B2 (en) 2019-01-30 2023-03-28 日本クロージャー株式会社 discharge cap
JP2020200077A (en) * 2019-06-10 2020-12-17 東京ライト工業株式会社 Cap and container
JP7254341B2 (en) 2019-06-10 2023-04-10 東京ライト工業株式会社 cap and container
US11845588B2 (en) 2020-08-05 2023-12-19 Illinois Tool Works Inc. Pouch enclosure with filling slit

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