JP2008120426A - Tube with check valve - Google Patents

Tube with check valve Download PDF

Info

Publication number
JP2008120426A
JP2008120426A JP2006307498A JP2006307498A JP2008120426A JP 2008120426 A JP2008120426 A JP 2008120426A JP 2006307498 A JP2006307498 A JP 2006307498A JP 2006307498 A JP2006307498 A JP 2006307498A JP 2008120426 A JP2008120426 A JP 2008120426A
Authority
JP
Japan
Prior art keywords
tube
check valve
valve
mouth member
molding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2006307498A
Other languages
Japanese (ja)
Other versions
JP5034452B2 (en
Inventor
Katsumi Kameda
克巳 亀田
Takehiko Bizen
毅彦 備前
Masaya Nishihira
賢哉 西平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP2006307498A priority Critical patent/JP5034452B2/en
Publication of JP2008120426A publication Critical patent/JP2008120426A/en
Application granted granted Critical
Publication of JP5034452B2 publication Critical patent/JP5034452B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To integrally form a tube with a check valve using a productive and economic compression molding method. <P>SOLUTION: The check valve of this tube with a check valve comprises a valve for discharging a content and a holding ring for holding the valve. The check valve and a tube opening member are molded integrally by compression molding. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、筒部材の開口に成型樹脂からなる口部材をコンプレッション成型により一体成型するチューブに関する。   The present invention relates to a tube in which a mouth member made of a molded resin is integrally formed by compression molding in an opening of a cylindrical member.

従来、医薬品、化粧品、食品などに用いられる、プラスチックを主体とする積層材料を筒状に成型したチューブ本体の開口に、ポリエチレンなどの熱可塑性樹脂を成型してなる口部材を一体に成型したチューブが知られている。   Conventionally, a tube in which a mouth member formed by molding a thermoplastic resin such as polyethylene is integrally formed in the opening of a tube body formed of a plastic-based laminated material used in medicine, cosmetics, foods, etc. It has been known.

他方、内容物を一方向にだけ注出可能とする逆止弁を前記チューブの口部材に形成した、逆止弁付きチューブが知られており、ペースト状の内容物を少量づつ使用するエンドユースの容器として広く用いられている（例えば、特許文献１）。   On the other hand, there is known a tube with a check valve in which a check valve that allows the contents to be poured out in only one direction is formed on the tube member, and the end use uses a paste-like content in small amounts. It is widely used as a container (for example, Patent Document 1).

このような逆止弁付きチューブは、チューブから絞り出した内容物の逆流を防ぐとともに、内容物を絞り出した際に、口部材から逆流した空気がチューブ内に入り込み内容物を変質したり、次に内容物を絞り出したときに空気のみが最初に出たりするエアバック現象を防ぐことが可能である。   Such a tube with a check valve prevents backflow of the contents squeezed out from the tube, and when the contents are squeezed out, the air backflowed from the mouth member enters the tube and changes the contents. When the contents are squeezed out, it is possible to prevent an air bag phenomenon in which only air comes out first.

また、チューブから内容物を絞り出した後の液切れがよく、液ダレ等により口部材を汚してしまうようなことがない。このため、内容物がハチミツやケチャップなどの粘度の高い内容物の場合に効果的であり、他方、化粧水などの粘度の低い内容物であっても、チューブ本体を押す力で、注出量を適宜加減することが可能である。   Further, the liquid is well drained after the contents are squeezed out of the tube, and the mouth member is not soiled by liquid dripping or the like. For this reason, it is effective when the contents are high-viscosity contents such as honey and ketchup. Can be appropriately adjusted.

特開平１０−５３２５９号公報JP-A-10-53259

しかしながら、このような逆止弁付きのチューブは、例えば、図１０に示すように、別成型品からなる逆止弁７を、チューブの口部材３へと嵌合する構成であり、製造に手間が掛かるとともにコストアップの要因となっていた。このため、生産性と経済性に優れたコンプレッション成形法を用いて、前記逆止弁７を前記口部材３へと一体に成型可能な逆止弁付きチューブを提供することを課題とする。   However, such a tube with a check valve has a configuration in which a check valve 7 made of a separately molded product is fitted to the mouth member 3 of the tube as shown in FIG. And increased costs. For this reason, it aims at providing the tube with a non-return valve which can shape | mold the said non-return valve 7 to the said opening member 3 integrally using the compression molding method excellent in productivity and economy.

そこで、上記課題を解決すべく、本発明の請求項１記載の発明は、筒状のチューブ本体の開口部分に、成型樹脂からなる口部材を取り付けてなるチューブにおいて、前記口部材の内部へと、内容物を注出する開閉自在なバルブと、該バルブを保持するための成型樹脂からなる保持リングと、からなる逆止弁を、コンプレッション成型により一体成型したことを特徴とする、逆止弁付きチューブである。   Therefore, in order to solve the above-mentioned problem, the invention according to claim 1 of the present invention is a tube in which a mouth member made of molding resin is attached to an opening portion of a tubular tube body, and the inside of the mouth member. A check valve characterized in that a check valve consisting of a valve that can be opened and closed to pour contents and a holding ring made of a molded resin for holding the valve is integrally molded by compression molding. It is a tube with.

また、請求項２記載の発明は、上部マンドレルと下部マンドレルとの間に前記逆止弁を配置するとともに、外方から熱可塑性樹脂を充填して口部材をコンプレッション成型することにより、前記口部材の内部へと逆止弁を一体成型することを特徴とする、逆止弁付きチューブである。   Further, the invention according to claim 2 is characterized in that the check member is disposed between the upper mandrel and the lower mandrel, and the mouth member is compression molded by filling a thermoplastic resin from the outside. It is a tube with a check valve characterized by integrally molding a check valve into the interior of the tube.

本発明の請求項１は、筒状のチューブ本体の開口部分に、成型樹脂からなる口部材を取り付けてなるチューブにおいて、前記口部材の内部へと、内容物を注出する開閉自在なバルブと、該バルブを保持するための成型樹脂からなる保持リングと、からなる逆止弁を、コンプレッション成型により一体成型したことを特徴とするから、生産性と経済性に優れたコンプレッション成形法を用いて、逆止弁付きチューブを一体成型により形成することが可能である。   According to a first aspect of the present invention, in a tube in which a mouth member made of molded resin is attached to an opening portion of a tubular tube body, an openable / closable valve for pouring contents into the mouth member; In addition, since a check ring made of a molding resin for holding the valve and a check valve made of the molded resin is integrally molded by compression molding, a compression molding method with excellent productivity and economy is used. The tube with a check valve can be formed by integral molding.

また、請求項２記載の発明は、上部マンドレルと下部マンドレルとの間に前記逆止弁を配置するとともに、外方から熱可塑性樹脂を充填して口部材をコンプレッション成型することにより、前記口部材の内部へと逆止弁を一体成型する簡単な方法により、逆止弁付きチューブを一体成型することが可能である。   Further, the invention according to claim 2 is characterized in that the check member is disposed between the upper mandrel and the lower mandrel, and the mouth member is compression molded by filling a thermoplastic resin from the outside. The tube with the check valve can be integrally molded by a simple method of integrally molding the check valve into the interior of the tube.

本発明に係る逆止弁付きチューブ１０（以下、チューブ１０）の一例としては、図１に示すように、内容物を収容する筒状部材からなるチューブ本体２と、該チューブ本体２の開口部分に一体に成型された口部材３とからなり、該口部材３へとキャップ４を取り付けてもよい。特に、前記口部材３の内部には図示しない逆止弁７がコンプレッション成型により、一体に成型されている。   As an example of the tube 10 with a check valve according to the present invention (hereinafter, tube 10), as shown in FIG. 1, a tube main body 2 made of a cylindrical member that accommodates contents, and an opening portion of the tube main body 2 And the cap 4 may be attached to the mouth member 3. In particular, a check valve 7 (not shown) is integrally formed in the mouth member 3 by compression molding.

このような逆止弁付きチューブ１０は、前記チューブ本体２の開口部分に、図示しない逆止弁７を内部に有する口部材３を、射出成形法あるいは圧縮成形法によって取り付けてなり、さらに前記口部材３は、別部材からなる逆止弁７をコンプレッション成型により一体成型してなる。   Such a tube 10 with a check valve is formed by attaching a mouth member 3 having a check valve 7 (not shown) inside the opening portion of the tube body 2 by an injection molding method or a compression molding method. The member 3 is formed by integrally molding a check valve 7 made of a separate member by compression molding.

以下に、本発明の逆止弁付きチューブ１０の構成および製造方法について説明する。   Below, the structure and manufacturing method of the tube 10 with a non-return valve of this invention are demonstrated.

まず、前記逆止弁７の一例としては、図２に示すように、曲げ弾性率の低い、十字状のスリットＷを有するバルブ６と、該バルブ６を保持する樹脂成型品からなる保持リング８とからなる逆止弁７であって、後述する、チューブ本体２の口部材３の内側へとコンプレッション成型により一体成型することにより、本発明の逆止弁付きチューブ１０を形成するものである。   First, as an example of the check valve 7, as shown in FIG. 2, a valve 6 having a cross-shaped slit W having a low bending elastic modulus, and a holding ring 8 made of a resin molded product that holds the valve 6. The non-return valve 7 is formed by compression molding into the inside of the mouth member 3 of the tube main body 2 to be described later, thereby forming the non-return valve-equipped tube 10 of the present invention.

前記逆止弁７の前記保持リング８は、前記口部材３に用いる材質とともに一体成型できるものであれば、その材質は限定されるものではない。また、前記逆止弁７の前記バルブ６は、柔軟な材質が望ましく、例えばシリコン、エラストマー、合成ゴム等を適宜使用可能である。   The material of the holding ring 8 of the check valve 7 is not limited as long as it can be integrally formed with the material used for the mouth member 3. The valve 6 of the check valve 7 is preferably made of a flexible material, and for example, silicon, elastomer, synthetic rubber, or the like can be used as appropriate.

また、逆止弁７の前記バルブ６の形状は、上記例に限らず、Ｙ形状や＊形状などのスリットを有する、任意の形状からなるバルブ６であってもよい。また、内容物を絞りだすときの逆止弁７は、内容物の圧力で上方へと押し上げられ、他方、絞り出しを停止したときの逆止弁７は、元の位置にもどる復元力が働くため、内容物の液切れがよく、さらには、バルブが元の位置に戻ることにより、チューブ内への空気の逆流を防ぐことが可能である。特に、内容物がハチミツやケチャップなどの粘度の高い内容物の場合に効果的であり、一方、化粧水などの粘度の低い内容物であっても、チューブ本体を押す力で、注出量を適宜加減することが可能である。   Further, the shape of the valve 6 of the check valve 7 is not limited to the above example, and may be a valve 6 having an arbitrary shape having slits such as a Y shape and a * shape. Further, the check valve 7 when the contents are squeezed is pushed upward by the pressure of the contents, and on the other hand, the check valve 7 when the squeezing is stopped has a restoring force to return to the original position. Further, the liquid of the contents is good, and further, the valve returns to the original position, thereby preventing the backflow of air into the tube. This is especially effective when the contents are high-viscosity contents such as honey or ketchup. On the other hand, even if the contents are low-viscosity contents such as lotion, the amount of dispensing can be reduced by pressing the tube body. It can be adjusted appropriately.

次に、前記チューブ本体２の一例としては、積層体からなる筒状体であって、積層シートを胴貼りして筒状体としても、あるいは多層押出し成形によって筒状体としてもよく、チューブ本体の一例としては、フィルムを筒状にして形成したラミネートチューブや、樹脂を押出し成型により形成した押出しチューブなど、を適宜用いることが可能である。   Next, as an example of the tube main body 2, it is a cylindrical body made of a laminated body, and the laminated sheet may be affixed to form a cylindrical body, or may be formed into a cylindrical body by multilayer extrusion molding. As an example, a laminate tube formed by forming a film into a cylindrical shape, an extruded tube formed by extruding a resin, or the like can be used as appropriate.

また、チューブ本体２の最内層の素材には、一般の内容物に対してはポリエチレン、ポリプロピレン等のポリオレフィン系樹脂が使用され、さらに特殊な薬効成分、芳香成分、高揮発成分等を含む医薬品、医薬部外品、化粧品、工業用品等には、かかる成分の選択的吸着、選択的透過の少ない非吸着性樹脂、例えばポリアクリロニトリル系共重合体（ＰＡＮ）あるいはエチレン・ビニルアルコール共重合体（ＥＶＯＨ）等を好適に使用することができる。チューブ本体２の前記最内層以外の素材の一例としては、最外層には肌触り、風合いの点および経済性の面から、ポリオレフィン系樹脂を使用することが好ましい。また前記口部材３は、前記チューブ本体２と良好に接合するように、前記チューブ本体２の最内層と同一の樹脂が使用されることが望ましい。   In addition, as the material of the innermost layer of the tube body 2, for general contents, a polyolefin resin such as polyethylene and polypropylene is used, and further, a medicinal product containing a special medicinal component, aromatic component, highly volatile component, etc., For quasi-drugs, cosmetics, industrial products, etc., selective adsorption of such components, non-adsorbent resin with little selective permeation, such as polyacrylonitrile copolymer (PAN) or ethylene / vinyl alcohol copolymer (EVOH) ) And the like can be preferably used. As an example of a material other than the innermost layer of the tube body 2, it is preferable to use a polyolefin-based resin for the outermost layer from the viewpoint of touch, texture and economy. The mouth member 3 is preferably made of the same resin as the innermost layer of the tube body 2 so as to be satisfactorily joined to the tube body 2.

次に、前記口部材３と前記逆止弁７とをコンプレッション成型により一体成型する方法の一例を以下に説明する。   Next, an example of a method for integrally molding the mouth member 3 and the check valve 7 by compression molding will be described below.

まず、図３に示すように、胴部マンドレルＡ（下部マンドレルＡ）に前記チューブ本体２を装着するとともに、胴部マンドレルＡ上方の凸部分Ｐに、別部材からなる前記逆止弁７の保持リング８部分を装着する。   First, as shown in FIG. 3, the tube body 2 is mounted on the trunk mandrel A (lower mandrel A), and the check valve 7 made of another member is held on the convex portion P above the trunk mandrel A. Attach the ring 8 part.

そして、図４に示すように、口部材マンドレルＢ（上部マンドレルＢ）を、前記逆止弁７の上方へと配置して、逆止弁７を前記上部マンドレルＢおよび下部マンドレルＡとにより挟み込む。   Then, as shown in FIG. 4, the mouth member mandrel B (upper mandrel B) is disposed above the check valve 7, and the check valve 7 is sandwiched between the upper mandrel B and the lower mandrel A.

次に、図５に示すように、口部材３をコンプレッション成型するためのリング状の溶融熱可塑性樹脂Ｍを前記胴部マンドレルＡの肩部分へと充填する。   Next, as shown in FIG. 5, the shoulder portion of the trunk mandrel A is filled with a ring-shaped molten thermoplastic resin M for compression-molding the mouth member 3.

最後に、図６に示すように、左右のキャビティＥ，Ｆにより、前記リング状の熱可塑性樹脂Ｍを挟み込み、熱可塑性樹脂Ｍを型閉めして、圧縮、冷却することにより、図７に示すように、逆止弁７と口部材３とを一体成型するとともに、口部材３とチューブ本体２とを熱溶着させるものである。   Finally, as shown in FIG. 6, the ring-shaped thermoplastic resin M is sandwiched between the left and right cavities E and F, and the thermoplastic resin M is closed, compressed, and cooled, as shown in FIG. As described above, the check valve 7 and the mouth member 3 are integrally molded, and the mouth member 3 and the tube main body 2 are thermally welded.

そして、チューブ本体２の底部Ｄから図示しない内容物を充填後、チューブ本体２の底部Ｄを閉じることにより、図８に示すように、本発明の逆止弁付きチューブ１０を形成するものである。   And after filling the content which is not shown in figure from the bottom part D of the tube main body 2, as shown in FIG. 8, the tube 10 with a non-return valve of this invention is formed by closing the bottom part D of the tube main body 2. FIG. .

以上のように、本発明の逆止弁付きチューブ１０は、前記口部材３の内部へと、内容物を注出する開閉自在なバルブ６と、該バルブ６を保持するための成型樹脂からなる保持リング８と、からなる逆止弁７を、コンプレッション成型により一体成型する簡単な構成により、生産性と経済性に優れたコンプレッション成形法を用いて、逆止弁付きチューブ１０を形成することが可能である。   As described above, the tube 10 with a check valve according to the present invention includes the openable / closable valve 6 for pouring the contents into the mouth member 3 and the molded resin for holding the valve 6. A tube 10 with a check valve can be formed by using a compression molding method that is excellent in productivity and economy by a simple configuration in which the check valve 7 including the holding ring 8 is integrally formed by compression molding. Is possible.

特に、上部マンドレルＢと下部マンドレルＡとの間に前記逆止弁７を配置するとともに、外方から熱可塑性樹脂Ｍを充填して口部材３をコンプレッション成型する簡単な方法により、前記口部材３の内部へと前記逆止弁７を一体成型した逆止弁付きチューブ１０を形成することが可能である。   In particular, the check valve 7 is disposed between the upper mandrel B and the lower mandrel A, and the mouth member 3 is compressed by a simple method of filling the thermoplastic resin M from the outside and compression-molding the mouth member 3. It is possible to form a check valve-equipped tube 10 in which the check valve 7 is integrally molded.

また、本発明の逆止弁付きチューブチューブ１０は、図９（ａ）（ｂ）に示すように、射出成形で作製され、その側壁内周面には、前記口部材３の外周面に設けられたネジ山に螺合するネジ溝が設けられたキャップ４を螺着してもよく、さらには、前記口部材３の天面部分に、未開封の証左や、パッキング効果及びバリア効果とを兼ねて、例えば、外側から二軸延伸ポリエチレンテレフタレートフィルム、アルミニウム箔、ポリプロピレン系樹脂のシーラント層を、順に積層したような構成のシール材Ｈを熱接着してもよい。   Moreover, as shown in FIGS. 9A and 9B, the tube tube 10 with a check valve according to the present invention is manufactured by injection molding, and is provided on the outer peripheral surface of the mouth member 3 on the inner peripheral surface thereof. A cap 4 provided with a thread groove to be screwed into the screw thread may be screwed, and further, the top surface portion of the mouth member 3 is provided with an unopened proof, a packing effect and a barrier effect. In addition, for example, a sealing material H having a structure in which a biaxially stretched polyethylene terephthalate film, an aluminum foil, and a polypropylene-based sealant layer are sequentially laminated from the outside may be thermally bonded.

前記口部材３をコンプレッション成型するための前記熱可塑性樹脂Ｍ（混合樹脂Ｍ）としては、特に限定はされないが、高密度ポリエチレン（ＨＤＰＥ）、中密度ポリエチレン（ＭＤＰＥ）、直鎖状低密度ポリエチレン（Ｌ・ＬＤＰＥ）、高圧法低密度ポリエチレン（ＬＤＰＥ）のいずれも使用することができる。   The thermoplastic resin M (mixed resin M) for compression molding the mouth member 3 is not particularly limited, but high density polyethylene (HDPE), medium density polyethylene (MDPE), linear low density polyethylene ( L. LDPE) and high-pressure low-density polyethylene (LDPE) can be used.

また、前記混合樹脂のポリプロピレンにブレンドするポリエチレンは、コンプレッション成形における成形性および耐熱性などの点で高密度ポリエチレンが特に好ましく、その含有量は７〜２５重量％の範囲が好ましい。前記高密度ポリエチレンの含有量が７重量％未満の場合は、コンプレッション成形における成形適性の向上効果を十分に得られず、また、２５重量％を超える場合は、胴部材との熱接着性が低下するため好ましくない。   The polyethylene blended with the polypropylene of the mixed resin is particularly preferably high-density polyethylene in terms of moldability and heat resistance in compression molding, and the content is preferably in the range of 7 to 25% by weight. When the content of the high-density polyethylene is less than 7% by weight, the effect of improving the moldability in compression molding cannot be sufficiently obtained. When the content exceeds 25% by weight, the thermal adhesiveness with the body member is lowered. Therefore, it is not preferable.

前記チューブ本体２は、ポリプロピレンを単独で筒状に成形したチューブ本体２を用いることもできるが、例えば、中間層にアルミニウム箔や、エチレン・酢酸ビニル共重合体ケン化物層、ポリアクリロニトリル層、或いは、シリカまたはアルミナまたはアルミニウムなどの蒸着層を設けた二軸延伸ポリエステルフィルムまたは二軸延伸ポリアミドフィルムなどを積層し、最内層と最外層にポリプロピレン層を積層した多層積層シートを筒状に熱接着した胴部材を用いることが、耐熱性と共にガスバリヤー性などを向上できる点で好ましい。   The tube main body 2 can be a tube main body 2 made of polypropylene alone and formed into a cylindrical shape. For example, an aluminum foil, an ethylene / vinyl acetate copolymer saponified layer, a polyacrylonitrile layer or an intermediate layer may be used. A multilayer laminated sheet in which a biaxially stretched polyester film or a biaxially stretched polyamide film provided with a vapor deposition layer such as silica, alumina, or aluminum is laminated, and a polypropylene layer is laminated on the innermost layer and the outermost layer is thermally bonded in a cylindrical shape. It is preferable to use a body member in terms of improving heat resistance and gas barrier properties.

また、ガスバリヤー性を必要としない場合でも、中間層に二軸延伸ポリエステルフィルムや二軸延伸ポリアミドフィルムなどを積層することにより胴部材の強靱性、屈曲性などの機械的強度を向上させることができる。また、前記チューブ本体２に用いるポリプロピレンは、レトルト殺菌処理に耐える耐熱性を有してもよく、ポリプロピレンのホモポリマーのほか、プロピレンとエチレンなどの共重合体や、前記口部材の成形樹脂と同様、ポリプロピレンにポリエチレンをブレンドした混合樹脂などを使用することができる。   Even when gas barrier properties are not required, it is possible to improve the mechanical strength such as toughness and flexibility of the body member by laminating a biaxially stretched polyester film or a biaxially stretched polyamide film on the intermediate layer. it can. Moreover, the polypropylene used for the tube body 2 may have heat resistance that can withstand retort sterilization treatment, as well as polypropylene homopolymers, copolymers such as propylene and ethylene, and molding resins for the mouth member. A mixed resin obtained by blending polyethylene with polypropylene can be used.

本発明の逆止弁付きチューブを示す図である。 （ａ）キャップ開封前を示す図である。 （ｂ）キャップ開封後を示す図である。It is a figure which shows the tube with a non-return valve of this invention. (A) It is a figure which shows before cap opening. (B) It is a figure which shows after cap opening. 逆止弁を示す図である。 （ａ）正面視断面図 （ｂ）一部切断斜視図It is a figure which shows a non-return valve. (A) Front sectional view (b) Partial cut perspective view 本発明の逆止弁付きチューブの成型工程を示す説明図である。 （ａ）正面視断面図 （ｂ）一部切断斜視図It is explanatory drawing which shows the shaping | molding process of the tube with a non-return valve of this invention. (A) Front sectional view (b) Partial cut perspective view 本発明の逆止弁付きチューブの成型工程を示す説明図である。 （ａ）正面視断面図 （ｂ）一部切断斜視図It is explanatory drawing which shows the shaping | molding process of the tube with a non-return valve of this invention. (A) Front sectional view (b) Partial cut perspective view 本発明の逆止弁付きチューブの成型工程を示す説明図である。 （ａ）正面視断面図 （ｂ）一部切断斜視図It is explanatory drawing which shows the shaping | molding process of the tube with a non-return valve of this invention. (A) Front sectional view (b) Partial cut perspective view 本発明の逆止弁付きチューブの成型工程を示す説明図である。 （ａ）正面視断面図 （ｂ）一部切断斜視図It is explanatory drawing which shows the shaping | molding process of the tube with a non-return valve of this invention. (A) Front sectional view (b) Partial cut perspective view 本発明の逆止弁付きチューブの成型工程を示す説明図である。 （ａ）正面視断面図 （ｂ）一部切断斜視図It is explanatory drawing which shows the shaping | molding process of the tube with a non-return valve of this invention. (A) Front sectional view (b) Partial cut perspective view 本発明の逆止弁付きチューブを示す一部切断説明図である。It is a partially cut explanatory drawing which shows the tube with a non-return valve of this invention. （ａ）（ｂ）本発明の逆止弁付きチューブの別の例を示す説明図である。(A) (b) It is explanatory drawing which shows another example of the tube with a non-return valve of this invention. （ａ）（ｂ）従来の逆止弁付きキャップを示す説明図である。(A) (b) It is explanatory drawing which shows the conventional cap with a non-return valve.

符号の説明Explanation of symbols

２ チューブ本体
３ 口部材
４ キャップ
８ 保持リング
６ バルブ
７ 逆止弁
１０ 逆止弁付きチューブ（チューブ）
Ａ 下部マンドレル
Ｂ 上部マンドレル
Ｍ 熱可塑性樹脂
Ｅ，Ｆ 左右のキャビティ 2 Tube body 3 Port member 4 Cap 8 Retaining ring 6 Valve 7 Check valve 10 Tube with check valve (tube)
A Lower mandrel B Upper mandrel M Thermoplastic resins E, F Left and right cavities

Claims (2)

筒状のチューブ本体の開口部分に、成型樹脂からなる口部材を取り付けてなるチューブにおいて、前記口部材の内部へと、内容物を注出する開閉自在なバルブと、該バルブを保持するための成型樹脂からなる保持リングと、からなる逆止弁を、コンプレッション成型により一体成型したことを特徴とする、逆止弁付きチューブ。   In a tube in which a mouth member made of molded resin is attached to an opening portion of a tubular tube body, an openable and closable valve for pouring contents into the mouth member, and for holding the valve A tube with a check valve, characterized in that a check ring made of a molded resin and a check valve made by molding are integrally formed by compression molding. 上部マンドレルと下部マンドレルとの間に前記逆止弁を配置するとともに、外方から熱可塑性樹脂を充填して口部材をコンプレッション成型することにより、前記口部材の内部へと逆止弁を一体成型することを特徴とする、請求項１記載の逆止弁付きチューブ。   The check valve is disposed between the upper mandrel and the lower mandrel, and the check valve is integrally molded into the mouth member by filling the thermoplastic resin from the outside and compression-molding the mouth member. The tube with a check valve according to claim 1, wherein:
JP2006307498A 2006-11-14 2006-11-14 Tube with check valve Expired - Fee Related JP5034452B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006307498A JP5034452B2 (en) 2006-11-14 2006-11-14 Tube with check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006307498A JP5034452B2 (en) 2006-11-14 2006-11-14 Tube with check valve

Publications (2)

Publication Number Publication Date
JP2008120426A true JP2008120426A (en) 2008-05-29
JP5034452B2 JP5034452B2 (en) 2012-09-26

Family

ID=39505620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006307498A Expired - Fee Related JP5034452B2 (en) 2006-11-14 2006-11-14 Tube with check valve

Country Status (1)

Country Link
JP (1) JP5034452B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013075670A (en) * 2011-09-29 2013-04-25 Yoshino Kogyosho Co Ltd Tube container with valve
JP2013139274A (en) * 2011-12-30 2013-07-18 Kao Corp Tube container
JPWO2012011558A1 (en) * 2010-07-23 2013-09-09 キッコーマン株式会社 Check valve, manufacturing method thereof, and container provided with check valve
JP2015096431A (en) * 2013-11-15 2015-05-21 大日本印刷株式会社 Tube container
FR3021303A1 (en) * 2014-05-26 2015-11-27 Techniplast IMPROVED DROP DISTRIBUTION APPARATUS
CN111942732A (en) * 2020-08-24 2020-11-17 卓高泰（广州）材料科技有限公司 Multi-material bottle cap with distribution valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126849U (en) * 1977-03-15 1978-10-07
JPS5428643U (en) * 1977-07-26 1979-02-24
JPH11105896A (en) * 1997-09-30 1999-04-20 Dainippon Printing Co Ltd Tube container equipped with check valve
JP2002225057A (en) * 2001-01-29 2002-08-14 Kansai Tube Kk Tube container and its production method
JP2003026214A (en) * 2001-07-12 2003-01-29 Toyo Seikan Kaisha Ltd Plastic tube vessel having non-return valve
JP2003160154A (en) * 2001-11-22 2003-06-03 Kao Corp Vessel with backflow preventing tool
WO2005023665A1 (en) * 2003-09-02 2005-03-17 Otsuka Pharmaceutical Co., Ltd. Discharge member, discharge container having the discharge member, and instillation container

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126849U (en) * 1977-03-15 1978-10-07
JPS5428643U (en) * 1977-07-26 1979-02-24
JPH11105896A (en) * 1997-09-30 1999-04-20 Dainippon Printing Co Ltd Tube container equipped with check valve
JP2002225057A (en) * 2001-01-29 2002-08-14 Kansai Tube Kk Tube container and its production method
JP2003026214A (en) * 2001-07-12 2003-01-29 Toyo Seikan Kaisha Ltd Plastic tube vessel having non-return valve
JP2003160154A (en) * 2001-11-22 2003-06-03 Kao Corp Vessel with backflow preventing tool
WO2005023665A1 (en) * 2003-09-02 2005-03-17 Otsuka Pharmaceutical Co., Ltd. Discharge member, discharge container having the discharge member, and instillation container

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2012011558A1 (en) * 2010-07-23 2013-09-09 キッコーマン株式会社 Check valve, manufacturing method thereof, and container provided with check valve
JP2013075670A (en) * 2011-09-29 2013-04-25 Yoshino Kogyosho Co Ltd Tube container with valve
JP2013139274A (en) * 2011-12-30 2013-07-18 Kao Corp Tube container
JP2015096431A (en) * 2013-11-15 2015-05-21 大日本印刷株式会社 Tube container
FR3021303A1 (en) * 2014-05-26 2015-11-27 Techniplast IMPROVED DROP DISTRIBUTION APPARATUS
EP2949593A1 (en) * 2014-05-26 2015-12-02 Techniplast Improved apparatus for dispensing droplets
CN111942732A (en) * 2020-08-24 2020-11-17 卓高泰（广州）材料科技有限公司 Multi-material bottle cap with distribution valve

Also Published As

Publication number Publication date
JP5034452B2 (en) 2012-09-26

Similar Documents

Publication Publication Date Title
JP6219187B2 (en) Delamination container
JPH04267727A (en) Multi-layer molded container and manufacture thereof
TWI710463B (en) Recyclable plastic package
JP5034452B2 (en) Tube with check valve
AU2016297663B2 (en) Barrier tube shoulders
US20180099787A1 (en) Tubular container
EP3214006B1 (en) Bioplastic collapsible dispensing tube
JP2014231372A (en) Laminate tube container
JP5237654B2 (en) Multi-layer sheet, container and package
JP2001139041A (en) Tubular container and its manufacturing method
WO2004013008A1 (en) Spout, pouch equipped with spout and process for producing spout
JP5282326B2 (en) Seal plug using hygroscopic laminate
JPH11105896A (en) Tube container equipped with check valve
JP2016179854A (en) Package
JP2005206163A (en) Bag with plug
JP2008001371A (en) Tube container having check valve
JP3827759B2 (en) Multi-layer extrusion tube container
JPH11292076A (en) Laminate container whose inner layer is peelable, and molding method thereof
JPH1086952A (en) Sealable multi-layered tube container
JP2007045473A (en) Airless container
JP2019172347A (en) Double container
JP2005306415A (en) Laminate tube container
CN210823369U (en) High-density polyethylene bottle
JP2006199346A (en) Packaging bag with discharge nozzle
JP6476699B2 (en) Container for dispensing

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090911

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110927

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111004

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111125

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120605

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120618

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150713

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5034452

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees