JP2852439B2 - Method for manufacturing a plug provided with a rubber plug - Google Patents
Method for manufacturing a plug provided with a rubber plugInfo
- Publication number
- JP2852439B2 JP2852439B2 JP1279663A JP27966389A JP2852439B2 JP 2852439 B2 JP2852439 B2 JP 2852439B2 JP 1279663 A JP1279663 A JP 1279663A JP 27966389 A JP27966389 A JP 27966389A JP 2852439 B2 JP2852439 B2 JP 2852439B2
- Authority
- JP
- Japan
- Prior art keywords
- plug
- rubber
- stopper
- plastic
- main body
- 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.)
- Expired - Fee Related
Links
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)
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を封止するゴム栓を備えた栓体
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a carbohydrate infusion, an electrolyte infusion, a plasma expander,
Open the mouth of an infusion plastic container that contains intravenous or enteral infusions such as osmotic diuretics, amino acid infusions, fat emulsions, or high-calorie nutritional supplements, or a blood plastic container that contains blood. The present invention relates to a method for manufacturing a plug provided with a rubber plug to be sealed.
［従来の技術］ 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）。[Prior Art] Generally, in a plastic container for infusion or blood, the mouth of the container is sealed with a plastic stopper having a rubber stopper inside (see Japanese Utility Model Application Laid-Open No. 56-47656).
［発明が解決しようとする課題］ 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。[Problems to be Solved by the Invention] Conventionally, a plastic stopper of a plastic container of this kind is manufactured by inserting a rubber stopper into a mold and then injection-molding a plastic stopper main body. The rubber stopper is deformed inward due to the pressure during injection molding due to its elasticity, and the rubber stopper is partially deformed because the injection pressure differs between the part where the plastic contacts and the part that contacts the mold. As a result, the distortion of the shape becomes large, and this causes the sealing property between the rubber plug and the plug main body to be impaired.
一方、この種のプラスチック容器のプラスチック栓体
においては、輸液時等にあたりゴム栓に注射針を刺し込
むので、その際に栓本体からゴム栓が脱落することがあ
ってはならず、従来からゴム栓の脱落防止に確実な対策
が求められている。On the other hand, in the plastic stopper of this type of plastic container, the injection needle is inserted into the rubber stopper at the time of infusion or the like, and the rubber stopper must not fall off from the stopper body at that time. Reliable measures are required to prevent the stopper from falling off.
本発明は、かかる従来のプラスチック栓体の問題点と
求められる課題とに鑑み、プラスチックの栓本体をゴム
栓をインサートしないで先ず射出成形し、その後に栓本
体の内部にゴム栓を形成することにより、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、しかも栓本体からゴム栓が脱落す
ることがないゴム栓を備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。The present invention has been made in view of the problems and the required problems of the conventional plastic plug, and firstly, injection-molds a plastic plug main body without inserting a rubber plug, and thereafter forms a rubber plug inside the plug main body. As a result, the distortion of the rubber plug provided inside the plug main body is eliminated, so that the sealing body between the plug main body and the rubber plug is excellent, and the rubber plug is provided with the rubber plug which does not fall off from the plug main body. It is intended to provide a method.
［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技術的手段とし
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 technical means for achieving the above object.
すなわち、それは、輸液用プラスチック容器等の口部
を封止するプラスチッ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、上下に貫通しかつ上下に抜け止めの
ための鍔部を形成する広がりを有するゴム栓を収容する
形状の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当該開口空
間部を封止しかつ上下に抜け止めのための鍔部を有する
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
の製造方法である。That is, it is a method of manufacturing a plastic plug for sealing a mouth portion of a plastic container for infusion or the like. First, the plug main body is molded by injection molding, and at the time of molding, the plug main body is vertically penetrated. Forming an opening space for accommodating a rubber stopper having a spread to form a flange part for retaining vertically, and then injecting and filling a rubber elastic material into the opening space of the molded stopper body. A method for manufacturing a plug provided with a rubber plug, characterized by forming a rubber plug having a flange portion for sealing the opening space and preventing the opening space from falling off.
［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しない
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。[Operation] According to the method for manufacturing a plug provided with a rubber plug according to the present invention, a plastic plug main body is first injection-molded without inserting a rubber plug, and then a rubber elastic material is injected and filled into the plug main body. As a result, the plastic plug body and the rubber plug have high sealing properties without being deformed by the injection pressure during the injection molding of the plug main body.
また、栓本体の射出成形時には、栓本体の内部に、上
下に貫通しかつ上下に抜け止めのための鍔部を形成する
広がりを有するゴム栓を収容する形状の開口空間部を形
成し、次いでこの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ので、栓本体とゴム栓との密閉性に
すぐれ、しかも栓本体からゴム栓が脱落することがない
ゴム栓を備えた栓体を得ることができる。Further, at the time of injection molding of the plug main body, an opening space portion is formed inside the plug main body so as to accommodate a rubber plug having a spread penetrating vertically and forming a flange portion for retaining vertically, and then, A rubber plug is formed by injecting and filling a rubber elastic material into the opening space, so that the plug is excellent in sealing property between the plug main body and the rubber plug, and furthermore, a plug provided with a rubber plug that does not fall off from the plug main body. You can get the body.
［実 施 例］ 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。Example An example of a method for manufacturing a plug provided with a rubber plug 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1,1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、上下に
貫通しかつ上下に抜け止めのための鍔部を形成する広が
りを有する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。４はプラスチック注入口で
ある。In FIG. 1, reference numeral 1,1 denotes a mold for injection-molding a plastic plug main body, and the mold 1,1 is of a vertical split type. A cavity 2, which forms a plug body in a state where the molds 1, 1 are closed, is formed therein, and the cavity 2 penetrates vertically in the plug body and prevents the plug from falling out. Protrusions 3, 3 are formed to form an open space in which a rubber stopper having a spread to form a flange portion for forming the opening is to be formed. 4 is a plastic inlet.
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。In order to injection-mold the plug body using the above-mentioned molds 1, 1, the molds 1, 1 are closed as shown in FIG. The plug body A is formed by the cavities 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Ａ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口７が設けられている。そ
こで、ゴム弾性材の注入口７からゴム栓Ｂを構成するゴ
ム弾性材を注入し、開口空間部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。そして、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は上下に抜け止め
のため鍔部が形成される。Next, the plug body A injection-molded first as described above is
The molds 1,1 are opened and taken out, and as shown in FIG. 2, they are loaded into molds 5,5 for forming a rubber stopper B inside the stopper body A,
A rubber plug B is formed in the opening space 6 of the plug main body A. The molds 5 are provided with an injection port 7 of a rubber elastic material. Then, the rubber elastic material constituting the rubber stopper B is injected from the rubber elastic material inlet 7 and the opening space 6 is filled with the rubber elastic material.
A rubber stopper B is formed inside the stopper main body A. The open space 6 forming the rubber plug B has a spread to form a flange at the top and bottom, and the formed rubber plug B has a flange at the top and bottom to prevent it from falling off.
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 exemplifies a plastic plug provided with a rubber plug manufactured as described above. The upper surface of the plug body A is sealed with the easy-open 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機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 of these with an inorganic filler such as calcium carbonate is used. The rubber elastic material forming the rubber stopper B is
Elastomers such as olefins, styrenes, amides, urethanes, and esters, synthetic rubbers such as silicone rubber, butyl rubber, and isoprene rubber, and natural rubbers 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
ず射出成形され、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 manufacturing method of the plug body having the rubber plug described above, the plastic plug body A is first injection-molded without inserting the rubber plug B, and then the rubber body is filled with the rubber elastic material to fill the rubber body. Since the stopper B is formed, the rubber stopper B does not deform due to the injection pressure during the injection molding of the stopper body A, and the plastic stopper body A and the rubber stopper B have a high sealing property. can get.
［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、上下に貫通しかつ上下に抜
け止めのための鍔部を形成する広がりを有するゴム栓を
収容する形状の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、栓本体の内部に備えたゴム栓の歪
をなくして、栓本体とゴム栓との密閉性にすぐれ、しか
も栓本体からゴム栓が脱落することがないゴム栓を備え
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 plug provided with a rubber plug according to the present invention, the plug body is first molded by injection molding, and at the time of molding, the plug body penetrates vertically and penetrates vertically. An opening space is formed in a shape to accommodate a rubber stopper having a spread to form a flange part for retaining the rubber stopper, and then the rubber stopper is injected and filled with a rubber elastic material into the opening space of the molded stopper body. Since it is formed, it eliminates distortion of the rubber plug provided inside the plug main body, has excellent sealing properties between the plug main body and the rubber plug, and has a rubber plug with which the rubber plug does not fall off from the plug main body. Can be obtained.
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、Ａ……栓本体、Ｂ……ゴム栓The drawings show an embodiment of the present invention, FIG. 1 is a longitudinal sectional view showing an injection molding mode of a plastic stopper body, and FIG. 2 is a longitudinal section showing a mode of forming a rubber stopper inside the plastic stopper body. FIG. 3 is a perspective view of a plug provided with a molded rubber plug. 1,1 ... a mold for injection molding of a plug body, 2 ... a cavity, 3 ... a protrusion, 4 ... a plastic injection port, 5,
5: a mold for forming a rubber stopper, 6: an open space portion, 7: an injection port of a rubber elastic material, 8: an easy-opening film, A: a stopper body, B: a rubber stopper
Claims (1)
るプラスチッ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、上下に貫通しかつ上下に抜け止めのための鍔
部を形成する広がりを有するゴム栓を収容する形状の開
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当該開口空間部を封
止しかつ上下に抜け止めのための鍔部を有するゴム栓を
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。1. A method of manufacturing a plastic plug for sealing a mouth portion of a plastic container or the like for infusion, wherein a plug body is first molded by injection molding, and the plug body is vertically penetrated into the plug body at the time of molding. Forming an opening space for accommodating a rubber stopper having a spread to form a flange part for retaining vertically, and then injecting and filling a rubber elastic material into the opening space of the molded stopper body. Forming a rubber plug having a flange portion for sealing the opening space portion and vertically preventing the opening space portion from falling off.
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 JPH03142209A (en) | 1991-06-18 |
| JP2852439B2 true 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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1206395B1 (en) * | 1999-05-28 | 2006-01-11 | Novo Nordisk A/S | Injection-moulded stopper for medical containers |
| EP1818155B1 (en) * | 2006-02-14 | 2012-12-05 | Gealan Formteile GmbH | Use of an injection moulded housing for variable installation space requirements |
| JP5199398B2 (en) | 2008-03-05 | 2013-05-15 | ベクトン・ディキンソン・アンド・カンパニー | Capillary action collection device and container assembly |
| BRPI0909776B1 (en) * | 2008-03-05 | 2019-05-07 | Becton, Dickinson And Company | DRILLING CO-MOLDED PLUG AND METHOD FOR MANUFACTURING IT |
-
1989
- 1989-10-30 JP JP1279663A patent/JP2852439B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03142209A (en) | 1991-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |