JPH0137249B2 - - Google Patents
Info
- Publication number
- JPH0137249B2 JPH0137249B2 JP57049986A JP4998682A JPH0137249B2 JP H0137249 B2 JPH0137249 B2 JP H0137249B2 JP 57049986 A JP57049986 A JP 57049986A JP 4998682 A JP4998682 A JP 4998682A JP H0137249 B2 JPH0137249 B2 JP H0137249B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- surface layer
- stopper
- synthetic resin
- resin
- 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
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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
- B65D39/0052—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in more than one piece
- B65D39/0094—Glass, ceramic or metal stoppers for perfume bottles or the like
-
- 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
- B29C2045/1678—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part first moulding the soft material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
- B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2539/00—Details relating to closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
- B65D2539/001—Details of closures arranged within necks or pouring opening or in discharge apertures, e.g. stoppers
- B65D2539/003—Details of closures arranged within necks or pouring opening or in discharge apertures, e.g. stoppers provided with sealing flanges or ribs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Closures For Containers (AREA)
Description
【発明の詳細な説明】
本発明は壜栓の製造方法に関するものであり、
特に香水を収容する壜のための栓の製造方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a bottle stopper,
In particular, it relates to a method for manufacturing a stopper for a bottle containing perfume.
一般に香水壜は高級感を醸し出す等の理由でガ
ラス製のものが殆どであり、またその壜口への栓
の取り付けも通常の壜のようなネジによる螺合方
式ではなく、円錐状に形成された壜口内面に栓の
逆円錐状嵌合部を嵌着する方式が普通である。そ
の場合、香水は他の化粧水や乳液などに比べて揮
発性が極めて高いので、栓の嵌着による密封効果
が充分に保証されることが必要となる。 In general, most perfume bottles are made of glass for reasons such as creating a sense of luxury, and the stopper is attached to the mouth of the bottle in a conical shape rather than with a screw like a normal bottle. The usual method is to fit the inverted conical fitting part of the stopper onto the inner surface of the bottle mouth. In this case, since perfume is extremely volatile compared to other lotions and emulsions, it is necessary to ensure a sufficient sealing effect by fitting the stopper.
従来提供されている香水壜では壜と同様に栓も
ガラスで形成したものが多いが、上記した密封効
果を増すために、第１図および第２図に示された
ようにガラス栓１の嵌合突部２の外周面に軟質の
合成樹脂、例えばポリエチレンなどで形成された
表層体３を設け、該表層体の外周に複数の突条
４，４を形成している。このような表層体は通
常、ガラス栓１を金型内にインサートした後、溶
融した樹脂を射出することにより成形されている
が、該表層体の脱落や空回りを防止するためガラ
ス栓１には予め凹所５や鋸歯状面６を形成してお
くことが必要となり、そのための研摩作業が煩雑
でコスト増大の原因となるばかりでなく、表層体
３の肉厚が一定でないため樹脂の冷却、固化に伴
い表面にシンクマークが生ずることが多く、これ
が密封効果を減少させるといつた問題を有してい
た。 In conventionally provided perfume bottles, the stopper is often made of glass as well as the bottle, but in order to increase the sealing effect described above, the glass stopper 1 is fitted as shown in FIGS. 1 and 2. A surface layer 3 made of a soft synthetic resin such as polyethylene is provided on the outer peripheral surface of the mating protrusion 2, and a plurality of protrusions 4, 4 are formed on the outer periphery of the surface layer. Such a surface layer is usually molded by inserting the glass stopper 1 into a mold and then injecting molten resin, but in order to prevent the surface layer from falling off or spinning idle, the glass stopper 1 is It is necessary to form the recesses 5 and serrated surfaces 6 in advance, which not only makes the polishing work complicated and increases costs, but also because the thickness of the surface layer 3 is not constant, it is difficult to cool the resin. As it hardens, sink marks often appear on the surface, which has the problem of reducing the sealing effect.
また、最近では上記したガラス栓に代わつて形
成の簡単な合成樹脂製の栓も出現しているが、ガ
ラス壜との釣り合いなどの理由により外部に表わ
れる部分は硬質の樹脂で形成されることが普通で
ある。従つて、ガラス栓の場合と同様に嵌合部に
ポリエチレン等の軟質樹脂から成る表層体を設け
ることが必要となるが、従来のように予め形成さ
れた表層体と栓とを嵌着する方法では、長期間の
使用のうちに該表層体が壜口内面との接触抵抗に
より栓から脱落する恐れがあり、また表層体に生
ずるシンクマークによる密封効果の減少という問
題のほか、これら表層体と栓との寸法のバラツキ
に起因する嵌合不良や体裁の悪さなど種々の欠点
を含むものであつた。 In addition, recently, synthetic resin stoppers that are easy to form have appeared in place of the glass stoppers mentioned above, but for reasons such as balance with the glass bottle, the external part is made of hard resin. is normal. Therefore, as in the case of glass stoppers, it is necessary to provide a surface layer made of a soft resin such as polyethylene at the fitting part, but there is no conventional method of fitting a pre-formed surface layer and the stopper. However, during long-term use, there is a risk that the surface layer may fall off from the stopper due to contact resistance with the inner surface of the bottle mouth, and there is also the problem that the sealing effect is reduced due to sink marks that occur on the surface layer. These had various drawbacks such as poor fitting and poor appearance due to variations in dimensions with the stopper.
本願発明は上述したような事情に鑑みなされた
もので、その目的は特に香水壜に適した栓であつ
た充分な密封効果を得ることが出来、かつ表層体
が脱落したり寸法のバラツキが生じたりする恐れ
のない壜栓を煩雑な工程を要することなく比較的
低コストで製造することの出来る方法を提供する
ことにある。 The present invention was made in view of the above-mentioned circumstances, and its purpose is to provide a stopper that is particularly suitable for perfume bottles, which has a sufficient sealing effect, and which prevents the surface layer from falling off or from varying dimensions. To provide a method for manufacturing a bottle stopper that is free from the risk of water damage at relatively low cost without requiring complicated steps.
以下には本願発明の好適な実施例に係る壜栓の
製造方法につき添付図面を参照して詳述する。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method of manufacturing a bottle stopper according to a preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
第３図は本願発明に係る方法を用いて壜栓を製
造するための金型を示しており、この金型はキヤ
ビテイー型７、コアー型８及び取出板９とから成
つている。コアー型８の上部中央には載頭逆円錐
状の凹所１０が形成されており、該凹所の底面は
樹脂射出用の通路１１と連通している。この凹所
１０の周壁には複数の１２が設けられており、こ
の溝に表層体１３の外周面に形成された突条１４
が緩やかに嵌合して該表層体が凹所１０内のイン
サートされている。 FIG. 3 shows a mold for manufacturing a bottle stopper using the method according to the present invention, and this mold consists of a cavity mold 7, a core mold 8, and a take-out plate 9. A recess 10 in the shape of an inverted truncated cone is formed in the center of the upper part of the core mold 8, and the bottom surface of the recess communicates with a passage 11 for resin injection. A plurality of grooves 12 are provided on the peripheral wall of this recess 10, and protrusions 14 formed on the outer peripheral surface of the surface body 13 are formed in these grooves.
The surface body is inserted into the recess 10 with a loose fit.
表層体１３は軟質の熱可塑性合成樹脂、好まし
くはポリエチレンから成形され、凹所１０と同様
に載頭逆円錐状に形成されて底部１５が開口とな
つており、好ましくは内周面に複数個の横条１６
及び縦条１７を設ける。尚、図示した実施例では
予め成形された表層体１３をコアー型８の凹所１
０にインサートすることとしたが、より好ましく
は、まず該コアー型を用いて表層体１３を射出成
形により形成し、該表層体をそのままにしてコア
ー型を回転ないし移送してこれを第３図に示され
た位置に配置させるようにすることであり、例え
ば二重回転成形機（図示せず）などを用いること
によりこのような方法も可能となる。 The surface body 13 is molded from a soft thermoplastic synthetic resin, preferably polyethylene, and is formed in the shape of a truncated inverted cone like the recess 10, with an opening at the bottom 15, and preferably has a plurality of holes on the inner circumferential surface. Horizontal stripe 16
and vertical stripes 17 are provided. In the illustrated embodiment, the preformed surface layer 13 is placed in the recess 1 of the core mold 8.
0, but more preferably, the surface layer 13 is first formed by injection molding using the core mold, and the core mold is rotated or transferred while leaving the surface layer as it is, and then the surface layer 13 is inserted into the mold as shown in FIG. This method is also possible by using, for example, a double rotary molding machine (not shown).
一方、キヤビテイー型７、ケアー型８及び取出
板１０で区画された空間１８は凹所１０を垂直部
としまた水平部１８ａの両端が下方に延長した断
面略Ｔ字形となつていて、該凹所に載置された表
層体１３の上端部１９は該空間の水平部１８ａ内
に突出している。そして第４図に示すように、コ
アー型８に形成された通路１１から凹所１０の底
部及び表層体１３の開口底部１５を経て、溶融し
た硬質の熱可塑性合成樹脂を空間１８内へ射出
し、該樹脂をそこで冷却、硬化させることによつ
て該空間に対応した形状の栓体２０が成形される
のであるが、こうして成形された栓体２０には表
層体１３がその横条１６、縦条１７及び上端部１
９により一体的に固着することになる。また、表
層体１３には前述のように種々の突条が設けられ
て肉厚が場所によつて異なる関係で、成形時に表
面にシンクマークが生じることが多いが、それら
のシンクマークは上記したように該表層体を凹所
１０に配置しそこに溶融樹脂を射出することによ
り、該樹脂の熱と圧力とによつて表層体１３の表
面が内部から金型に圧接されるためこの段階で除
去される。 On the other hand, the space 18 defined by the cavity mold 7, the care mold 8, and the take-out plate 10 has a substantially T-shaped cross section with the recess 10 as a vertical part and both ends of the horizontal part 18a extending downward. The upper end portion 19 of the surface body 13 placed on the space protrudes into the horizontal portion 18a of the space. Then, as shown in FIG. 4, the molten hard thermoplastic synthetic resin is injected into the space 18 from the passage 11 formed in the core mold 8 through the bottom of the recess 10 and the open bottom 15 of the surface layer 13. By cooling and hardening the resin there, a plug body 20 having a shape corresponding to the space is molded. Strip 17 and upper end 1
9, it will be fixed integrally. In addition, as mentioned above, the surface layer 13 is provided with various protrusions and the wall thickness varies depending on the location, so sink marks are often generated on the surface during molding, but these sink marks are as described above. By arranging the surface layer body 13 in the recess 10 and injecting molten resin therein, the surface of the surface layer body 13 is pressed against the mold from the inside by the heat and pressure of the resin. removed.
尚、栓体２０を形成する硬質の樹脂としては、
香水に対して耐腐食性がありまた外観的にも都合
の良いポリプロピレン或いはメチルペンテン重合
体を用いることが好ましく、また上述した表層体
のシンクマークの除去との関係から、これらの樹
脂を200℃乃至220℃で溶融し、400Kg／cm2乃至500
Kg／cm2の圧力で金型の空間１８内へ射出すること
が好ましい。 In addition, the hard resin forming the plug body 20 is as follows:
It is preferable to use polypropylene or methylpentene polymers, which are corrosion resistant to perfumes and have a good appearance.Also, from the standpoint of removing sink marks on the surface layer mentioned above, these resins are heated at 200℃. Melts at 220℃ to 400Kg/cm 2 to 500
It is preferable to inject into the cavity 18 of the mold at a pressure of Kg/cm 2 .
このようにして金型内で表層体１３を固着した
栓体２０を成形した後、キヤビテイー型７を移動
させ取出板９を上方へスライドさせると、冷却、
硬化して収縮した栓体２０は表層体１３と共に容
易に金型から離脱し、これによつて第５図に示す
ような成形品である壜栓が取り出される。そして
この壜栓は、壜口に挿入される表層体１３の表面
にシンクマークによる凹凸が存在しないため、充
分な密封効果を得ることが出来るとともに、該表
層体は内面の突条１６，１７による嵌着のほか上
端部１９が栓体２０の水平部内に埋設されて該栓
体に一体的に固着しているので、壜口内へ強く挿
入したり挿入した状態で回転させたり或いはそこ
から強い力で引き抜いたりして使用しても、表層
体１３が栓体２０から外れまたは空回りする恐れ
が全くない。 After molding the plug body 20 with the surface layer 13 fixed in the mold in this way, when the cavity mold 7 is moved and the take-out plate 9 is slid upward, cooling and
The hardened and shrunk stopper 20 is easily removed from the mold together with the surface layer 13, and a bottle stopper as a molded product as shown in FIG. 5 is thereby taken out. This bottle stopper has no unevenness due to sink marks on the surface of the surface layer 13 inserted into the bottle mouth, so it is possible to obtain a sufficient sealing effect, and the surface layer is formed by the protrusions 16 and 17 on the inner surface. In addition to fitting, the upper end 19 is embedded in the horizontal part of the stopper 20 and is integrally fixed to the stopper, so it cannot be strongly inserted into the bottle mouth, rotated while inserted, or subjected to strong force from there. Even if the plug body 13 is pulled out and used, there is no fear that the surface body 13 will come off the plug body 20 or that it will spin idly.
また、ポリエチレンなどの軟質の樹脂で形成さ
れた表層体１３は金型内で栓体２０を成形する際
に同時にこれらに固着されるので、従来のように
これらを後から嵌着する作業や栓体を研摩加工す
る作業などは不要となり、また寸法のバラツキに
起因する種々の問題も解消され得る。 Furthermore, since the surface layer 13 made of a soft resin such as polyethylene is fixed to the plug body 20 at the same time when the plug body 20 is molded in the mold, there is no need to do the work of fitting them later as in the past. Work such as polishing the body becomes unnecessary, and various problems caused by variations in dimensions can be solved.
上記実施例では表層体１３は内面に横条１６及
び縦条１７を有するようにしたが、第６図に示す
ようにこれら突条のかわりに表層体１３′の上端
部１９′に外方への鍔部２１を設けることとして
も良く、これによつても該表層体の脱落や空回り
を同様に防止できる。 In the above embodiment, the surface body 13 has horizontal stripes 16 and vertical strips 17 on the inner surface, but as shown in FIG. It is also possible to provide a flange 21, which also prevents the surface layer from falling off and spinning idly.
上述のように、本願発明に係る壜栓の製造方法
によれば、載頭逆円錐状で底部が開口しかつ外面
に突条を有する表層体を軟質の熱可塑性合成樹脂
から成形し、該表層体を断面略Ｔ字形の空間を有
する栓体成形用金型内に配置して該表層体の上端
部を該空間の水平部内に突出させ、該表層体の底
部開口から溶融した硬質の熱可塑性合成樹脂を該
空間内へ射出し、該硬質樹脂を冷却、硬化させる
ことにより栓体を製造するとともに該表層体が該
栓体に一体的に固着されるようにしたので、従来
のように表層体と栓体とを後から嵌着したり或い
は栓体に嵌合用の凹所を研摩加工して設けるとい
つた作業工程が不要になつて、壜栓の製造を簡単
にかつ低コストで行うことが可能になるととも
に、製造された壜栓の表層体にはシンクマークに
よる凹凸がなく従つて充分な密封効果を得ること
が出来、更に該表層体の上端部が該栓体中に埋設
されるため長期間の使用によつても該表層体が緩
んだり脱落したりする恐れが全くない。 As described above, according to the method for manufacturing a bottle stopper according to the present invention, the surface layer body is shaped like a truncated inverted cone, has an open bottom, and has protrusions on the outer surface, and molds the surface layer body from a soft thermoplastic synthetic resin. The body is placed in a mold for forming a plug body having a space approximately T-shaped in cross section, and the upper end of the surface body is made to protrude into the horizontal part of the space, and a hard thermoplastic resin is melted from the bottom opening of the surface body. By injecting a synthetic resin into the space and cooling and hardening the hard resin, the plug body is manufactured, and the surface layer body is integrally fixed to the plug body, so that the surface layer is not removed as in the conventional method. This eliminates the need for work steps such as fitting the body and the stopper together later, or polishing and providing a fitting recess in the stopper, making it possible to manufacture bottle stoppers easily and at low cost. In addition, the surface layer of the manufactured bottle stopper has no unevenness due to sink marks, so a sufficient sealing effect can be obtained, and the upper end of the surface layer is embedded in the stopper. Therefore, there is no fear that the surface layer will loosen or fall off even after long-term use.
また、前記軟質の樹脂はポリエチレンが、前記
硬質の樹脂はポリプロピレン或いはメチルペンテ
ン重合体がそれぞれ好ましく、これによつて適度
な弾性や耐香水性及び良好な外観などを得ること
が出来る。 Further, the soft resin is preferably polyethylene, and the hard resin is preferably polypropylene or methylpentene polymer, respectively, whereby appropriate elasticity, perfume resistance, and good appearance can be obtained.
また、前記硬質樹脂を200℃乃至220℃で溶融
し、400Kg／cm2乃至500Kg／cm2の圧力で前記金型内
へ射出することとした場合、前記表層体表面のシ
ンクマークの除去を効率良く行うことが出来る。 Furthermore, when the hard resin is melted at 200°C to 220°C and injected into the mold at a pressure of 400Kg/cm 2 to 500Kg/cm 2 , sink marks on the surface of the surface layer can be efficiently removed. I can do it well.
更に、前記表層体は予め成形されたものを前記
金型内にインサートすることとしても良いが、こ
れを金型内で射出成形により形成し該金型内に残
存させたまま前記栓体成形用金型内に移送して配
置することとすれば、該表層体と前記栓体の成形
とを一連の工程で行うことが可能となり、製造工
程を一層簡略化することが出来るものである。 Furthermore, the surface layer may be pre-molded and inserted into the mold, but it may be formed by injection molding in the mold and left in the mold for use in molding the plug body. If it is transferred and placed in a mold, the surface layer body and the plug body can be formed in a series of steps, and the manufacturing process can be further simplified.
第１図及び第２図は従来の一般的な香水壜用の
壜栓を示しており、第１図はその縦断面図で破線
で示す壜口に挿入された状態を示し、第２図は第
１図の−線に於ける横断面図、第３図は本願
発明の一実施例に係る壜栓の製造方法に用いる金
型を表層体を配置した状態で示す断面図、第４図
は該金型内に樹脂を射出した状態を示す断面図、
第５図は本願発明に係る方法により製造された壜
栓の一例を示す断面図、第６図は壜栓の他の例を
示す断面図である。
７，８，９……金型、１３……表層体、１４…
…突条、１５……開口底部、１８……空間、１８
ａ……水平部、１９……上端部、２０……栓体。
Figures 1 and 2 show a conventional bottle stopper for a general perfume bottle. Figure 1 is a vertical cross-sectional view of the bottle, showing the state inserted into the bottle opening indicated by the broken line, and Figure 2 is a vertical sectional view of the bottle stopper. FIG. 3 is a cross-sectional view taken along the - line in FIG. A cross-sectional view showing a state in which resin is injected into the mold,
FIG. 5 is a sectional view showing an example of a bottle stopper manufactured by the method according to the present invention, and FIG. 6 is a sectional view showing another example of the bottle stopper. 7, 8, 9...Mold, 13...Surface body, 14...
... Projection, 15 ... Opening bottom, 18 ... Space, 18
a...Horizontal part, 19... Upper end part, 20... Plug body.
Claims (1)
を有する表層体を軟質の熱可塑性樹脂から成形
し、該表層体を断面略Ｔ字形の空間を有する栓体
成形用金型内に配置して該表層体の上端部を該空
間の水平部内に突出させ、該表層体の底部開口か
ら溶融した硬質の熱可塑性合成樹脂を該空間内へ
射出し、該硬質樹脂を冷却、硬化させることによ
り栓体を製造するとともに該表層体が該栓体に一
体的に固着されてなることを特徴とする壜栓の製
造方法。 ２ 前記軟質の熱可塑性合成樹脂をポリエチレン
とし、また前記硬質の熱可塑性合成樹脂をポリプ
ロピレン或いはメチルペンテン重合体としたこと
を特徴とする特許請求の範囲第１項記載の壜栓の
製造方法。 ３ 前記硬質の熱可塑性合成樹脂を200℃乃至220
℃で溶融し、400Kg／cm2乃至500Kg／cm2の圧力で前
記金型内に射出してなることを特徴とする特許請
求の範囲第１項または第２項記載の壜栓の製造方
法。 ４ 前記表層体を金型内で射出成形により形成
し、該金型内に残存させたまま前記栓体成形用金
型内に移送して配置することを特徴とする特許請
求の範囲第１項、第２項または第３項記載の壜栓
の製造方法。[Scope of Claims] 1. A plug body having a surface body in the shape of an inverted cone with an opening at the bottom and having protrusions on the outer surface is molded from a soft thermoplastic resin, and the surface body has a space approximately T-shaped in cross section. Placed in a mold for molding, the upper end of the surface body protrudes into the horizontal part of the space, and molten hard thermoplastic synthetic resin is injected into the space from the bottom opening of the surface body, and the hard thermoplastic synthetic resin is A method for manufacturing a bottle stopper, characterized in that the stopper is manufactured by cooling and hardening a resin, and the surface layer is integrally fixed to the stopper. 2. The method for manufacturing a bottle stopper according to claim 1, wherein the soft thermoplastic synthetic resin is polyethylene, and the hard thermoplastic synthetic resin is polypropylene or a methylpentene polymer. 3 Heat the hard thermoplastic synthetic resin at 200°C to 220°C.
3. The method for manufacturing a bottle stopper according to claim 1 or 2, characterized in that the bottle stopper is melted at a temperature of 400 Kg/cm 2 to 500 Kg/cm 2 and injected into the mold. 4. Claim 1, characterized in that the surface layer body is formed by injection molding in a mold, and is transferred and placed in the plug body mold while remaining in the mold. , the method for producing a bottle stopper according to item 2 or 3.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57049986A JPS58167141A (en) | 1982-03-30 | 1982-03-30 | Manufacture of bottle stopper |
| US06/426,159 US4485065A (en) | 1982-03-30 | 1982-09-28 | Method for forming bottle closure |
| KR828204851A KR860001110B1 (en) | 1982-03-30 | 1982-10-28 | Bottle caps and manufacturing method |
| IT8224775A IT1155391B (en) | 1982-03-30 | 1982-12-15 | BOTTLE CLOSURE AND METHOD FOR ITS TRAINING |
| DE19833307592 DE3307592A1 (en) | 1982-03-30 | 1983-03-03 | METHOD FOR PRODUCING A BOTTLE CAP AND BOTTLE CAP |
| FR8305029A FR2524379B1 (en) | 1982-03-30 | 1983-03-28 | CLOSURE FOR BOTTLE OR BOTTLE AND METHOD FOR FORMING THE SAME |
| US06/635,364 US4569457A (en) | 1982-03-30 | 1984-07-24 | Bottle closure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57049986A JPS58167141A (en) | 1982-03-30 | 1982-03-30 | Manufacture of bottle stopper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58167141A JPS58167141A (en) | 1983-10-03 |
| JPH0137249B2 true JPH0137249B2 (en) | 1989-08-04 |
Family
ID=12846334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57049986A Granted JPS58167141A (en) | 1982-03-30 | 1982-03-30 | Manufacture of bottle stopper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58167141A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6262641U (en) * | 1985-10-08 | 1987-04-18 | ||
| DE3703680A1 (en) * | 1987-02-06 | 1988-08-18 | Frank Schellenbach | METHOD FOR PRODUCING A GAS-TIGHT PLASTIC LOCK FOR BOTTLES AND THE LIKE CONTAINERS |
-
1982
- 1982-03-30 JP JP57049986A patent/JPS58167141A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58167141A (en) | 1983-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4485065A (en) | Method for forming bottle closure | |
| US4988472A (en) | Method of inserting a piece into a mold for molding a mouth of a preform | |
| US4569457A (en) | Bottle closure | |
| KR20000016332A (en) | Fast manufacturing method of assembly consisted of plastic components | |
| JPH0137249B2 (en) | ||
| EP0568260B1 (en) | Method and device for molding cassette | |
| JPH0221401Y2 (en) | ||
| JPS6219528Y2 (en) | ||
| JPH036407Y2 (en) | ||
| JP4540805B2 (en) | Two-color molded body | |
| JPH0246987Y2 (en) | ||
| JPS6213887B2 (en) | ||
| JP2598250Y2 (en) | Mold | |
| KR100283675B1 (en) | Cooling method for lipstick molding and holder used therefor | |
| JPH05131483A (en) | Hollow molded body | |
| JPH0567503B2 (en) | ||
| JPH0159089B2 (en) | ||
| JPH0717464Y2 (en) | Inside cap with spout | |
| JP3388360B2 (en) | Mold for molding of cylindrical molded products | |
| JPH033384Y2 (en) | ||
| JPS6130819Y2 (en) | ||
| JPH0222253Y2 (en) | ||
| JP4262854B2 (en) | Plug body and manufacturing method thereof | |
| JPH06312773A (en) | Aerosol container mounting cup and method for forming gasket for the same | |
| JPH06278159A (en) | Manufacture of molding |