JPH0127847B2 - - Google Patents
Info
- Publication number
- JPH0127847B2 JPH0127847B2 JP10277380A JP10277380A JPH0127847B2 JP H0127847 B2 JPH0127847 B2 JP H0127847B2 JP 10277380 A JP10277380 A JP 10277380A JP 10277380 A JP10277380 A JP 10277380A JP H0127847 B2 JPH0127847 B2 JP H0127847B2
- Authority
- JP
- Japan
- Prior art keywords
- nipple
- cavity
- core
- mold
- recess
- 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
Links
- 210000002445 nipple Anatomy 0.000 claims description 51
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000013013 elastic material Substances 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 description 11
- 239000004945 silicone rubber Substances 0.000 description 11
- 238000000465 moulding Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229920003049 isoprene rubber Polymers 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は射出成形による乳首の製造方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a nipple by injection molding.
従来乳首の製造は、天然ゴム、イソプレンゴ
ム、シリコンゴム等の固形ゴムを主原料とし、こ
れを所定の型の上に一定量のせ直圧成型して行な
つていた。そして、現在日本で販売されている乳
首の材質は、イソプレンゴム58％、シリコンゴム
40％、その他２％となつている。近年シリコンゴ
ムが特に増えているのは、イソプレンゴムでは老
化防止剤として使われているジブチルヒドロキシ
ルトルエンが安全性で問題となつたからである。
これらの成型で天然ゴム、イソプレンゴムは、架
橋剤として硫黄を又加硫促進剤、ゴム弾性、引裂
強さ、老化防止剤として酸化亜鉛、脂肪酸などロ
ール混粘し、製品重量に合わせて原料計量し熱プ
レス金型のキヤビテイに入れ成型している。ま
た、シリコンゴムについても同じように、シリコ
ンゴム、架橋剤、無水ケイ酸など混粘されたもの
を原料計量し、これを熱プレス金型のキヤビテイ
に入れ成型している。
Conventionally, nipples have been manufactured by using solid rubber such as natural rubber, isoprene rubber, silicone rubber, etc. as the main raw material, and placing a certain amount of this on a predetermined mold and molding it under direct pressure. The materials of the nipples currently sold in Japan are 58% isoprene rubber and silicone rubber.
40%, others 2%. Silicone rubber has been on the rise in recent years because dibutylhydroxyltoluene, which is used as an anti-aging agent in isoprene rubber, has become a safety issue.
In these molding processes, natural rubber and isoprene rubber are mixed in rolls with sulfur as a crosslinking agent, zinc oxide and fatty acids as vulcanization accelerators, rubber elasticity, tear strength, and anti-aging agents, and the raw materials are weighed according to the weight of the product. It is then placed in the cavity of a heat press mold and molded. Similarly, for silicone rubber, the mixed raw materials such as silicone rubber, crosslinking agent, and silicic acid anhydride are weighed out and then placed in the cavity of a hot press mold and molded.
上記従来の乳首の製造方法は、いずれもその成
型サイクルが３〜10分ときわめて長く、しかも、
原料を混粘して乳首１個分の原料を一つ一つ計量
してこれを型にいれていかなければならないの
で、非常に手間がかかり作業性がきわめて悪く、
製造コスト高くつくという欠点があつた。また、
バリを出さないと物性的外観的に形にならず、そ
のため、金型には余分に材料を入れて成型した
後、バリ取りのためのあと加工が必要であつた。
All of the conventional nipple manufacturing methods described above have extremely long molding cycles of 3 to 10 minutes.
The raw materials have to be mixed together, the raw materials for one nipple have to be weighed one by one, and then put into the mold, which is very time consuming and has extremely poor work efficiency.
The drawback was that manufacturing costs were high. Also,
Unless the burr is removed, the physical appearance cannot be achieved, so after the mold is filled with extra material and molded, it is necessary to perform post-processing to remove the burr.
本発明は、上記問題点に鑑み提案されたもの
で、弾性物、例えば、ゴム弾性のプラスチツクあ
るいはシリコンゴム等を射出成形することによ
り、作業性の向上及びコストの低減化を図ること
のできる乳首の製造方法を提供することを目的と
している。 The present invention has been proposed in view of the above-mentioned problems, and is capable of improving workability and reducing costs by injection molding an elastic material such as rubber elastic plastic or silicone rubber. The purpose is to provide a manufacturing method for.
本発明は、上記目的を達成するため、凹所を有
する上型と該凹所に嵌入するコアを有する下型と
で所定の乳首形状のキヤビテイを形成すると共
に、上記コアの頂部に、該コアに形成されたガス
抜き穴が開口する凹状の保持穴を形成し、この保
持穴に通気性を有する発泡部材を起立保持した状
態で、前記キヤビテイ内に、上下金型の接合部
で、かつ、乳首の外周鍔部に相当する部位の外端
側に設けたゲートより予熱されたゴムあるいはプ
ラスチツク等の弾性物を充填し、この弾性物の充
填時、キヤビテイ内のエアを上記発泡部材を介し
てガス抜き穴より排出するようにしたものであ
る。
In order to achieve the above object, the present invention forms a predetermined nipple-shaped cavity with an upper mold having a recess and a lower mold having a core that fits into the recess, and also has a cavity on the top of the core. A concave holding hole is formed in which a gas vent hole formed in the hole opens, and a foamed member having air permeability is held upright in the holding hole, and is placed in the cavity at the joint between the upper and lower molds, and A preheated elastic material such as rubber or plastic is filled through a gate provided at the outer end of the portion corresponding to the outer periphery of the nipple, and when filling the elastic material, air inside the cavity is pumped through the foamed member. It is designed to be discharged through a gas vent hole.
本発明方法によれば、キヤビテイ内に予熱され
た弾性物を確実に充填してガス焼けのない艶やか
な乳首を衛生的に、かつ、短時間に大量生産する
ことができる。
According to the method of the present invention, it is possible to reliably fill the cavity with a preheated elastic material and mass-produce glossy nipples without gas burns hygienically and in a short time.
以下本発明の実施例を図面を参照しながら説明
すると次の通りである。
Embodiments of the present invention will be described below with reference to the drawings.
第１図乃至第３図において、１は本発明の製造
方法により製造した乳首で、これは乳首本体２と
発泡部材３，４とから構成されている。上記乳首
本体２はシリコンゴム或いはプラスチツク等の弾
性物を素材として射出成形したもので、その乳首
部５の頂部には厚肉部６を有し、且つ開口部分の
外周には環状突条７及び鍔部８を有している。上
記発泡部材３，４は、ポリエチレン或いはポリプ
ロピレン等を素材とすると共に、外周に抜脱防止
用の鍔部９，１０を有する柱状体形状で且つ通気
性を有する所定密度に射出成形したもので、上記
乳首本体２の乳頭部５に形成した厚肉部６の中心
及び上記鍔部８の所定部位に夫々埋設し、発泡部
材３はその外端面３ａを乳頭部５の外面５ａと同
一面にし且つ内端部３ｂを乳頭部５内に突出させ
て乳頭部５内面の環状突隆部５ｂで動かないよう
に保持し、又発泡部材４はその外端面４ａを鍔部
８の上面８ａと同一面にし且つ下端部４ｂは下方
に突出させて環状突隆部８ｂで保持し、各発泡部
材３，４の両端面３ａ，３ｃ，４ａ，４ｃを乳首
本体２の内部と外部に夫々連通開放せしめる。 In FIGS. 1 to 3, reference numeral 1 denotes a nipple manufactured by the manufacturing method of the present invention, which is composed of a nipple body 2 and foam members 3 and 4. The nipple main body 2 is injection molded from an elastic material such as silicone rubber or plastic, and has a thick part 6 at the top of the nipple part 5, and an annular protrusion 7 and an annular protrusion 7 on the outer periphery of the opening. It has a collar part 8. The foamed members 3 and 4 are made of polyethylene or polypropylene, etc., and are injection molded to a predetermined density and have a columnar shape with flanges 9 and 10 on the outer periphery to prevent slipping out, and are breathable. The foamed member 3 is embedded in the center of the thick portion 6 formed in the nipple 5 of the nipple body 2 and in a predetermined portion of the flange 8, and the foamed member 3 has its outer end surface 3a flush with the outer surface 5a of the nipple 5. The inner end 3b protrudes into the nipple 5 and is held stationary by the annular protrusion 5b on the inner surface of the nipple 5, and the foam member 4 has its outer end 4a flush with the upper surface 8a of the collar 8. In addition, the lower end portion 4b is made to protrude downward and held by the annular protruding portion 8b, and both end surfaces 3a, 3c, 4a, 4c of each foam member 3, 4 are made to communicate with the inside and outside of the nipple body 2, respectively.
尚、前記の射出成形した発泡部材３，４の表面
はスキン層となり通気性を有していないので、発
泡部材３，４の両端は第３図の破線１１ａ，１１
ｂ上で切断し、上述の如く通気性を付与する。ま
た、乳首には通常Ｓ、Ｍ、Ｌの３種があり、乳児
の吸乳力に応じてその３種のいずれかを哺乳瓶に
着脱自在に取付けるが、前記乳首１の場合は、発
泡部材３，４の密度を発泡度、成形条件によつて
変えることによりＳ、Ｍ、Ｌの３種の乳首を精度
よく作ることができる。更に、上記説明では、発
泡部材３の外端面３ａと乳首本体２の乳頭部外面
５ａとは同一面としたが、第４図に示す如く、発
泡部材３の外端面３ａを乳頭部５の一部で被覆
し、当該被覆部５ｃに通気孔１２を形成したり或
いはクロスカツトを施して発泡部材３の外端面３
ａを乳首本体２の外部に連通させる。 Incidentally, since the surfaces of the injection-molded foamed members 3 and 4 are skin layers and do not have air permeability, both ends of the foamed members 3 and 4 are aligned with the broken lines 11a and 11 in FIG.
b and provide ventilation as described above. In addition, there are usually three types of nipples: S, M, and L, and one of the three types is detachably attached to a baby bottle depending on the sucking power of the infant. By changing the density of 3 and 4 depending on the degree of foaming and molding conditions, three types of nipples, S, M, and L, can be made with high precision. Furthermore, in the above description, the outer end surface 3a of the foamed member 3 and the outer surface 5a of the nipple of the nipple body 2 are on the same plane, but as shown in FIG. The outer end surface 3 of the foamed member 3 is covered with a foamed member 3, and a ventilation hole 12 is formed in the covered portion 5c, or a cross cut is made.
A is communicated with the outside of the nipple body 2.
第５図は前記乳首１を製造するための装置を示
したもので、同図において、１３は前記乳首１の
外面形状と同形状の凹所１４を有する射出成形機
の上型、１５は乳首１の内面形状と同形状のコア
１６を有する下型で、上記上型１３と下型１５と
の接合時凹所１４内にコア１６が嵌入して両者間
に乳首１と同形状のキヤビテイ１７が形成され
る。上記コア１６の頂部及びこのコア１６の外周
域の所定部位には前記発泡部材３及び４と略同径
で且つ開口縁が拡開した凹状の保持穴１８及び１
９が夫々形成されている。２０は上記コア１６に
設けられてその頂部の保持穴１８に連通せしめら
れたガス抜き穴である。２１は上記上型１３と下
型１５との接合面間に形成されたランナで、これ
はゲート２２を介してキヤビテイ１７に連通せし
める。 FIG. 5 shows an apparatus for manufacturing the nipple 1. In the figure, 13 is an upper die of an injection molding machine having a recess 14 having the same shape as the outer surface of the nipple 1, and 15 is an upper mold for the nipple. When the upper mold 13 and the lower mold 15 are joined, the core 16 fits into the recess 14, and a cavity 17 having the same shape as the nipple 1 is formed between them. is formed. Concave holding holes 18 and 1 with approximately the same diameter as the foamed members 3 and 4 and enlarged opening edges are provided at the top of the core 16 and at predetermined portions of the outer peripheral area of the core 16.
9 are formed respectively. Reference numeral 20 denotes a gas vent hole provided in the core 16 and communicated with the holding hole 18 at the top thereof. A runner 21 is formed between the joint surfaces of the upper mold 13 and the lower mold 15, and is communicated with the cavity 17 via a gate 22.
そうして、前記乳首１を製造する場合は、下型
１５の上記保持穴１８及び１９に発泡部材３，４
を夫々起立させて保持した後、上型１３と下型１
５とを接合させて凹所１４内にコア１６を嵌入せ
しめ、しかる後、予熱された例えばシリコンゴム
を適当な手段でランナ２１に圧入し、ゲート２２
を介してキヤビテイ１７内に充填する。このと
き、キヤビテイ１７内のエアは通気性を有する発
泡部材３を介してガス抜き穴２０より排出され、
したがつて、ガスが圧縮されてガス焼けしたり或
いは材料が充填されないといつたことはない。そ
して、乳首１の成形が完了すると、上型１３を下
型１５より開放した後、下型１５のコア１６より
乳首１を取去る。以下同じ要領で乳首１を製造す
る。 Then, when manufacturing the nipple 1, the foam members 3, 4 are inserted into the holding holes 18 and 19 of the lower mold 15.
After raising and holding the upper mold 13 and lower mold 1,
5 and fit the core 16 into the recess 14. After that, preheated silicone rubber, for example, is press-fitted into the runner 21 by an appropriate means, and the gate 22 is inserted into the runner 21.
The inside of the cavity 17 is filled through. At this time, the air in the cavity 17 is discharged from the gas vent hole 20 via the breathable foam member 3,
Therefore, there is no possibility that the gas will be compressed and burned or that the material will not be filled. When the molding of the nipple 1 is completed, the upper mold 13 is released from the lower mold 15, and then the nipple 1 is removed from the core 16 of the lower mold 15. Thereafter, nipple 1 is manufactured in the same manner.
尚、乳首の成形の場合、キヤビテイ１７が深い
ためゲートの位置が問題となる。例え、キヤビテ
イ１７の頂点部すなわち上型１３もしくは下型１
５にゲートを設けると、キヤビテイ１７内のガス
は上型１３と下型１５とのパーテングラインから
抜けるので問題はないけれども、乳首の乳頭部に
フローマークやゲート跡が残り乳頭部としては不
都合である。本発明によれば、上型１３と下型１
５との接合部にゲート２２を設け、かつ、キヤビ
テイ１７内への予熱されたシリコンゴムの充填
時、キヤビテイ１７内のガスは通気性を有する発
泡部材３を介してガス抜き穴２０より排出される
ようにしたので、乳首１の乳頭部５にフローマー
クやゲート跡ができるようなことはなく、艶やか
な乳首を製造することができる。 In the case of nipple molding, the position of the gate becomes a problem because the cavity 17 is deep. For example, the top part of the cavity 17, that is, the upper mold 13 or the lower mold 1
If a gate is provided at 5, the gas in the cavity 17 will escape through the parting line between the upper mold 13 and the lower mold 15, so there will be no problem, but flow marks and gate marks will remain on the nipple, which is inconvenient for the nipple. It is. According to the present invention, the upper mold 13 and the lower mold 1
A gate 22 is provided at the joint with the cavity 5, and when the cavity 17 is filled with preheated silicone rubber, the gas inside the cavity 17 is discharged from the gas vent hole 20 through the foamed member 3 having air permeability. As a result, flow marks and gate marks are not formed on the nipple 5 of the nipple 1, and a glossy nipple can be manufactured.
また、前記発泡部材のかわりに第５図に示す如
く、通気路２３或いは２４を有する柱状体形状の
部材２５，２６を使用してもよい。また、金型温
度が特に高温の場合はガラス繊維束を樹脂コーテ
イングして通気性を付与した部材２７でもよい。
この場合コーテイングの度合で通気性の程度をか
えることができる。さらに、上記実施例では、乳
首本体２の素材をシリコンゴムとしたが、上記発
泡部材３，４が哺乳機能を果たすことから、酢酸
ビニール、EVA等の熱可塑性樹脂を使えば、射
出成型は非常に楽であり、シリコンゴム製の乳首
より安価にすなわち約５分の１程度のコストで乳
首を製造するとができる。 Further, instead of the foamed member, columnar members 25 and 26 having ventilation passages 23 and 24 may be used, as shown in FIG. Furthermore, if the mold temperature is particularly high, the member 27 may be made by coating a glass fiber bundle with a resin to provide air permeability.
In this case, the degree of breathability can be changed by the degree of coating. Furthermore, in the above embodiment, silicone rubber was used as the material for the nipple body 2, but since the foamed members 3 and 4 perform the sucking function, injection molding is very easy if thermoplastic resin such as vinyl acetate or EVA is used. It is easy to manufacture, and the nipple can be manufactured at a lower cost than silicone rubber nipples, that is, at about one-fifth the cost.
本発明よれば、従来の如く原料を混粘し乳首１
個分を一つ一つ計量してこれを型に入れる必要は
なくなる。その結果、作業者が一つ一つの乳首の
原料を手で触ることがなくなり、きわめて衛生的
であり、異物の混入を防止することができる。ま
た、各作業者の労力を軽減し、作業性が大幅に向
上して、乳首を短時間に大量生産することができ
ると共に、コストが安くなり、消費者に乳首を安
価に提供することができる。さらに、従来の乳首
の製造方法によればバリ取り作業が必要であつた
が、本発明によればバリ取りの後加工は不必要と
なり、しかも、キヤビテイ内に予熱された弾性物
を確実に充填して、ガス焼けがなく、かつ、フロ
ーマークやゲート跡のない艶やかな乳首を製造す
ることができる。
According to the present invention, the raw materials are mixed and viscous as in the past, and the teat 1
There is no longer a need to weigh each individual piece and put it into a mold. As a result, the operator does not have to touch the material of each nipple with his/her hands, which is extremely hygienic and prevents foreign matter from getting mixed in. In addition, the labor of each worker is reduced and work efficiency is greatly improved, making it possible to mass-produce nipples in a short time. Costs are also reduced, making it possible to provide nipples to consumers at low prices. . Furthermore, while conventional nipple manufacturing methods required deburring, the present invention eliminates the need for post-deburring processing, and also ensures that the preheated elastic material is filled into the cavity. By doing so, it is possible to produce glossy nipples without gas burns and without flow marks or gate marks.
第１図は本発明の製造方法により製造した乳首
の断面図、第２図は発泡部材の斜視図、第３図は
発泡部材の製作要領を示した説明図、第４図は乳
首の他の実施例を示した要部断面図、第５図は乳
首の製造装置を示した断面図、第６図は発泡部材
の他の実施例を示した斜視図である。
１…乳首、３…発泡部材、８…鍔部、１３…上
型、１４…凹所、１５…下型、１６…コア、１７
…キヤビテイ、１８…保持穴、２０…ガス抜き
穴、２２…ゲート。
Fig. 1 is a sectional view of a nipple manufactured by the manufacturing method of the present invention, Fig. 2 is a perspective view of a foamed member, Fig. 3 is an explanatory diagram showing the manufacturing procedure of the foamed member, and Fig. 4 is an illustration of other nipples. FIG. 5 is a cross-sectional view showing a nipple manufacturing apparatus, and FIG. 6 is a perspective view showing another example of the foamed member. DESCRIPTION OF SYMBOLS 1... Nipple, 3... Foamed member, 8... Flange, 13... Upper mold, 14... Recess, 15... Lower mold, 16... Core, 17
...Cavity, 18...Holding hole, 20...Gas vent hole, 22...Gate.
Claims (1)
有する下型とで所定の乳首形状のキヤビテイを形
成すると共に、上記コアの頂部に、該コアに形成
されたガス抜き穴が開口する凹状の保持穴を形成
し、この保持穴に通気性を有する発泡部材を起立
保持した状態で、前記キヤビテイ内に、上下金型
の接合部で、かつ、乳首の外周鍔部に相当する部
位の外端側に設けたゲートより予熱されたゴムあ
るいはプラスチツク等の弾性物を充填し、この弾
性物の充填時、キヤビテイ内のエアを上記発泡部
材を介してガス抜き穴より排出するようにしたこ
とを特徴とする射出成形による乳首の製造方法。1. A predetermined nipple-shaped cavity is formed by an upper mold having a recess and a lower mold having a core that fits into the recess, and a gas vent hole formed in the core is opened at the top of the core. A concave holding hole is formed, and with the air permeable foam member held upright in the holding hole, a portion of the joint between the upper and lower molds and corresponding to the outer peripheral flange of the nipple is placed in the cavity. Preheated elastic material such as rubber or plastic is filled through a gate provided on the outer end side, and when the elastic material is filled, air in the cavity is discharged from the gas vent hole through the foamed member. A method for manufacturing nipples by injection molding, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10277380A JPS5725854A (en) | 1980-07-25 | 1980-07-25 | Manufacture of nipple by projection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10277380A JPS5725854A (en) | 1980-07-25 | 1980-07-25 | Manufacture of nipple by projection molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5725854A JPS5725854A (en) | 1982-02-10 |
| JPH0127847B2 true JPH0127847B2 (en) | 1989-05-31 |
Family
ID=14336470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10277380A Granted JPS5725854A (en) | 1980-07-25 | 1980-07-25 | Manufacture of nipple by projection molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5725854A (en) |
-
1980
- 1980-07-25 JP JP10277380A patent/JPS5725854A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5725854A (en) | 1982-02-10 |
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