JPH03142209A - Manufacture of plug with rubber stopper - Google Patents
Manufacture of plug with rubber stopperInfo
- Publication number
- JPH03142209A JPH03142209A JP1279663A JP27966389A JPH03142209A JP H03142209 A JPH03142209 A JP H03142209A JP 1279663 A JP1279663 A JP 1279663A JP 27966389 A JP27966389 A JP 27966389A JP H03142209 A JPH03142209 A JP H03142209A
- Authority
- JP
- Japan
- Prior art keywords
- stopper
- rubber stopper
- rubber
- main body
- plug main
- 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
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 69
- 239000005060 rubber Substances 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000004033 plastic Substances 0.000 claims abstract description 29
- 229920003023 plastic Polymers 0.000 claims abstract description 29
- 239000013013 elastic material Substances 0.000 claims abstract description 13
- 238000001746 injection moulding Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 238000001802 infusion Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract description 16
- 239000007924 injection Substances 0.000 abstract description 16
- 229920001169 thermoplastic Polymers 0.000 abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 2
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000015872 dietary supplement Nutrition 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000002337 osmotic diuretic agent Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、糖質輸液剤、電解質輸液剤、血漿増量材、浸
透圧利尿剤、アミノ酸輸液剤、脂肪乳剤、高カロリー栄
養剤などの経静脈や経腸用の輸液等を収容する輸液用プ
ラスチック容器、あるいは血液等を収容する血液用プラ
スチック容器等の口部るものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applicable to carbohydrate infusions, electrolyte infusions, plasma expanders, osmotic diuretics, amino acid infusions, fat emulsions, high-calorie nutritional supplements, etc. A plastic container for infusion containing intravenous or enteral infusion, or a plastic blood container for containing blood or the like.
［従来の技ＷＩ］
一般に、輸液用あるいは血液用プラスチック容器におい
ては、内部にゴム栓を備えたプラスチック栓体で容器の
口部を封止している（実開昭５６−４７６５６号公報参
照）。[Conventional Technique WI] Generally, in plastic containers for infusions or blood, the opening of the container is sealed with a plastic stopper that has a rubber stopper inside (see Japanese Utility Model Application No. 56-47656). .
［発明が解決しようとする！１題コ
従来から、この種のプラスチック容器のプラスチック栓
体は、ゴム栓を金型内にインサートしたうえ、プラスチ
ックの栓本体を射出成形することによって製造している
が、ゴム栓は、その弾性のために射出成形時の圧力によ
って内方に変形するうえ、ゴム栓のプラスチックが接す
る部分と金型に接している部分では射出圧力が異なると
ころから、部分的に変形を起して形状の歪が大きくなり
、これがゴム栓と栓本体との密封性が損なわれる原因と
なっている。[Invention tries to solve! Traditionally, plastic closures for this type of plastic containers have been manufactured by inserting a rubber closure into a mold and then injection molding the plastic closure body. Because of this, it deforms inward due to the pressure during injection molding, and since the injection pressure is different between the part of the rubber stopper in contact with the plastic and the part in contact with the mold, local deformation occurs and the shape becomes distorted. becomes large, which causes the sealing performance between the rubber stopper and the stopper body to be impaired.
本発明は、かかる従来のプラスチック栓体の問照点に鑑
み、プラスチ・ンクの栓本体をゴム栓をインサートしな
いで先ず射出成形し、その後に）全本体の内部にゴム栓
を形成することｔこより、栓本体の内部に備えるゴム栓
の歪をなくし、もって、栓本体とゴム栓との密閉性にす
ぐれたゴム栓を（萌えた栓体の製造方法を提供すること
を目的とするものである。In view of the problems with the conventional plastic stopper, the present invention provides a method of first injection molding a plastic stopper body without inserting a rubber stopper, and then forming a rubber stopper inside the entire body. Therefore, it is an object of the present invention to provide a rubber stopper with excellent sealing properties between the stopper body and the rubber stopper by eliminating distortion of the rubber stopper provided inside the stopper body. be.
［課題を解決するための手段］
本発明は、上記目的を達成するための（支術白）手段と
して、次の製造方法を採用した。[Means for Solving the Problems] The present invention employs the following manufacturing method as a means for achieving the above object.
すなわち、それは、輸液用プラスチ・ンク容器等の口部
を封止するプラスチ・ンク栓体の製造方？去であって、
先ず栓本体を射出成形ζこより成形するとともに、その
成形時に栓本体の内部ζこゴム栓を収容する開口空間部
を形成し、次０で成形された栓本体の上記開口空間部に
ゴム弾性材をａ４出充填してゴム栓を形成することを特
徴とするゴム寄金を備えた栓体の製造方法１である。In other words, is it a method of manufacturing plastic stoppers that seal the openings of plastic containers for infusions, etc.? It's gone,
First, the stopper body is molded by injection molding, and at the time of molding, an opening space for accommodating the rubber stopper inside the stopper body is formed, and then a rubber elastic material is injected into the opening space of the stopper body molded by 0. This is a manufacturing method 1 of a stopper equipped with a rubber deposit, characterized in that a rubber stopper is formed by discharging and filling A4.
［作 用 ］
本発明に係るゴム栓を備えた栓体の製造方法によれば、
プラスチックの栓本体をゴム栓をインサートシないで先
ず射出成形し、その後に栓本体の内部にゴム弾性材を射
出充填してゴム栓を形成するので、栓本体の射出成形時
の射出圧力によって変形を起すことがなく、プラスチッ
クの栓本体とゴム栓とは高い密封性を有するものとなる
。[Function] According to the method for manufacturing a stopper equipped with a rubber stopper according to the present invention,
The plastic stopper body is first injection molded without inserting the rubber stopper, and then a rubber elastic material is injected and filled inside the stopper body to form the rubber stopper, so it will not deform due to the injection pressure during injection molding of the stopper body. The plastic plug body and the rubber plug have a high sealing performance.
［実 施 倒 ］
本発明に係るゴム栓を備えた栓体の製造方法の一実施例
について、図面を参照して説明する。[Implementation] An embodiment of the method for manufacturing a stopper equipped with a rubber stopper according to the present invention will be described with reference to the drawings.
第１図において、１．１はプラスチックの栓本体を射出
成形するための金型であって、この金型Ｉ。In FIG. 1, 1.1 is a mold for injection molding a plastic stopper body, and this mold I.
１は上下分割形式のものである。そして、金型１゜１を
閉じた状態でその内部に栓本体を形成するキャビティ２
が形成されており、かつ、キャビティ２には、栓本体の
内部にゴム栓を形成すべき開口空間部を形成する突出部
３．３が形成されている。1 is of the upper and lower split format. Then, when the mold 1゜1 is closed, a cavity 2 is formed inside which forms the plug body.
is formed, and the cavity 2 is formed with a protrusion 3.3 that forms an opening space in which a rubber stopper is to be formed inside the stopper body.
４はプラスチック注入口である。4 is a plastic injection port.
上記金型１，１を用いて栓本体を射出成形するには、金
型１．１を第１図のように閉じ、プラスチック注入口４
から溶融した熱可塑性プラスチックを射出充填すれば、
金型１，１のキャビティ２によって栓本体Ａが成形され
る。To injection mold the stopper body using the molds 1, 1, the mold 1.1 is closed as shown in Figure 1, and the plastic injection port 4 is
If you inject and fill molten thermoplastic from
A plug body A is molded by the cavity 2 of the molds 1 and 1.
次いで、このように先ず射出成形された栓本体Ａは、金
型１，１を開いて取り出し、第２図に示すように、栓本
体への内部にゴム栓Ｂを成形する金型５，５内に装填し
、栓本体Ａの開口空間部６にゴム栓Ｂを形成する。この
金型５，５にはゴム弾性材の注入ロアが設けられている
。そこで、ゴム弾性材の注入ロアからゴム栓Ｂを構成す
るゴム弾性材を注入し、関口空間部６にそれを充填すれ
ば、栓本体Ａの内部にゴム栓Ｂが形成される。なお、こ
のゴム栓Ｂを形成する開口空間部６は上下に鍔部を形成
する広がりを有し、形成されるゴム栓Ｂは上下に抜は止
めのための鍔部が形成される。Next, the stopper body A which has been first injection molded in this way is taken out by opening the molds 1, 1, and then, as shown in FIG. A rubber stopper B is formed in the opening space 6 of the stopper body A. The molds 5, 5 are provided with an injection lower of a rubber elastic material. Therefore, by injecting the rubber elastic material constituting the rubber stopper B from the rubber elastic material injection lower and filling the entrance space 6 with it, the rubber stopper B is formed inside the stopper body A. The opening space 6 that forms this rubber stopper B has a width that forms flanges on the top and bottom, and the formed rubber plug B has flanges on the top and bottom to prevent it from being pulled out.
第３図には、上記のように製造されたゴム栓を備えたプ
ラスチック栓体が例示されている。なお、栓本体Ａの上
面は易開封性フィルム８によって密封されている。FIG. 3 illustrates a plastic stopper with a rubber stopper manufactured as described above. Note that the top surface of the stopper body A is sealed with an easily openable film 8.
栓本体Ａを成形する熱可塑性プラスチックとしては、高
密度ポリエチレン、ポリプロピレン、あるいは、これら
に炭酸カルシウム等の無Ｉｌｌ質充填剤を混入したもの
が用いられる。また、ゴム栓Ｂを形成するゴム弾性材は
、オレフィン系、スチレン系、アミド系、ウレタン系、
エステル系等のエラストマー シリコンゴム、ブチルゴ
ム、イソプレンゴム等の合成ゴムや天然ゴムが用いられ
る。As the thermoplastic plastic for molding the plug body A, high-density polyethylene, polypropylene, or a mixture thereof with a non-Ill filler such as calcium carbonate is used. Further, the rubber elastic material forming the rubber stopper B may be olefin-based, styrene-based, amide-based, urethane-based,
Ester-based elastomers, etc. Synthetic rubbers and natural rubbers such as silicone rubber, butyl rubber, and isoprene rubber are used.
以上のゴム栓を備えた栓体の製造方法によれば、プラス
チックの栓本体Ａがゴム栓Ｂをインサートしないで先ず
割出成形され、その後に栓本体Ａの内部にゴム弾性材を
充填してゴム栓Ｂが形成されるので、ゴム栓Ｂは栓本体
Ａの射出成形時の射出圧力によって変形を起すことがな
く、プラスチックの栓本体Ａとゴム栓Ｂとが高い密封性
を有するプラスチック栓体が得られる。According to the method for manufacturing a stopper body equipped with a rubber stopper as described above, a plastic stopper main body A is first index-molded without inserting a rubber stopper B, and then the inside of the stopper main body A is filled with a rubber elastic material. Since the rubber stopper B is formed, the rubber stopper B is not deformed by the injection pressure during injection molding of the stopper body A, and the plastic stopper body A and the rubber stopper B have a high sealing performance. is obtained.
［発明の効果］
本発明に係るゴム栓を備えた栓体の製造方法によれば、
先ず栓本体を射出成形により成形するとともに、その成
形時に栓本体の内部にゴム栓を収容する開口空間部を形
成し、次いで成形された栓本体の上記開口空間部にゴム
弾性材を射出充填してゴム栓を形成するから、プラスチ
ックの栓本体をゴム栓をインサートしないで射出し、そ
の後に栓本体の内部にゴム栓を形成することができ、栓
本体の内部に備えるゴム栓の歪をなくし、栓本体とゴム
栓との密閉性にすぐれたゴム栓を備えた栓体を得ること
ができるものである。[Effects of the Invention] According to the method for manufacturing a stopper equipped with a rubber stopper according to the present invention,
First, the plug body is molded by injection molding, and at the time of molding, an opening space for accommodating the rubber plug is formed inside the plug body, and then a rubber elastic material is injected and filled into the opening space of the molded plug body. Since the rubber stopper is formed using a plastic stopper, the plastic stopper body can be injected without inserting a rubber stopper, and then the rubber stopper can be formed inside the stopper body, which eliminates distortion of the rubber stopper provided inside the stopper body. Accordingly, it is possible to obtain a plug body equipped with a rubber stopper that has excellent sealing properties between the stopper body and the rubber stopper.
図面は本発明の一実施例を示し、第１図はプラスチック
の栓本体の射出成形態様を示す縦断面図、第２図はプラ
スチックの栓本体の内部にゴム栓を形成する態様を示す
縦断面図、第３図は成形されたゴム栓を備えた栓体の斜
視図である。
１．１・・・栓本体を射出成形するための金型、２・・
・キャビティ、３・・・突出部、４・・・プラスチック
注入口、５．５・・・ゴム栓を形成するための金型、６
・・・開口空間部、７・・・ゴム弾性材の注入口、８・
・・易開封フィルム
特
許
出
願
人
キヨーラク株式会社
第１１図
第２図The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view showing a form of injection molding of a plastic stopper body, and FIG. 2 is a longitudinal cross-sectional view showing a form of forming a rubber stopper inside the plastic stopper body. FIG. 3 is a perspective view of a stopper with a molded rubber stopper. 1.1... Mold for injection molding the stopper body, 2...
- Cavity, 3... Protrusion, 4... Plastic injection port, 5.5... Mold for forming a rubber stopper, 6
...Opening space, 7...Rubber elastic material injection port, 8.
...Easy-to-open film patent applicant Kyoraku Co., Ltd. Figure 11 Figure 2
Claims (1)
ク栓体の製造方法であって、先ず栓本体を射出成形によ
り成形するとともに、その成形時に栓本体の内部にゴム
栓を収容する開口空間部を形成し、次いで成形された栓
本体の上記開口空間部にゴム弾性材を射出充填してゴム
栓を形成することを特徴とするゴム栓を備えた栓体の製
造方法。A method for manufacturing a plastic stopper for sealing the mouth of a plastic container for infusions, etc., in which the stopper body is first molded by injection molding, and at the time of molding, an opening space for accommodating a rubber stopper is formed inside the stopper body. 1. A method of manufacturing a stopper body equipped with a rubber stopper, characterized in that the rubber stopper is formed by injecting and filling the opening space of the formed stopper body with a rubber elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1279663A JP2852439B2 (en) | 1989-10-30 | 1989-10-30 | Method for manufacturing a plug provided with a rubber plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1279663A JP2852439B2 (en) | 1989-10-30 | 1989-10-30 | Method for manufacturing a plug provided with a rubber plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03142209A true JPH03142209A (en) | 1991-06-18 |
| JP2852439B2 JP2852439B2 (en) | 1999-02-03 |
Family
ID=17614126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1279663A Expired - Fee Related JP2852439B2 (en) | 1989-10-30 | 1989-10-30 | Method for manufacturing a plug provided with a rubber plug |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2852439B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003500304A (en) * | 1999-05-28 | 2003-01-07 | ノボ ノルディスク アクティーゼルスカブ | Injection molded stopper for medical container |
| EP1818155A1 (en) * | 2006-02-14 | 2007-08-15 | Gealan Formteile GmbH | Injection moulded housing for variable installation space requirements |
| JP2013034905A (en) * | 2008-03-05 | 2013-02-21 | Becton Dickinson & Co | Co-molded pierceable stopper and method for making the same |
| US11944434B2 (en) | 2008-03-05 | 2024-04-02 | Becton, Dickinson And Company | Capillary action collection device and container assembly |
-
1989
- 1989-10-30 JP JP1279663A patent/JP2852439B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003500304A (en) * | 1999-05-28 | 2003-01-07 | ノボ ノルディスク アクティーゼルスカブ | Injection molded stopper for medical container |
| EP1818155A1 (en) * | 2006-02-14 | 2007-08-15 | Gealan Formteile GmbH | Injection moulded housing for variable installation space requirements |
| JP2013034905A (en) * | 2008-03-05 | 2013-02-21 | Becton Dickinson & Co | Co-molded pierceable stopper and method for making the same |
| US11944434B2 (en) | 2008-03-05 | 2024-04-02 | Becton, Dickinson And Company | Capillary action collection device and container assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2852439B2 (en) | 1999-02-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |