JPS646943B2 - - Google Patents
Info
- Publication number
- JPS646943B2 JPS646943B2 JP9375984A JP9375984A JPS646943B2 JP S646943 B2 JPS646943 B2 JP S646943B2 JP 9375984 A JP9375984 A JP 9375984A JP 9375984 A JP9375984 A JP 9375984A JP S646943 B2 JPS646943 B2 JP S646943B2
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- air outlet
- synthetic resin
- bottle
- outer bottle
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 18
- 239000000057 synthetic resin Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims 1
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000003763 resistance to breakage Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermally Insulated Containers For Foods (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は所謂魔法瓶類に使用する合成樹脂製の
真空容器の製造方法及び真空引き装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a synthetic resin vacuum container used for so-called thermos flasks, and a vacuum evacuation device.
（従来の技術）
従来の真空容器はガラス、或いはステンレスス
チール製であり、前者は保温性能は良いが、割れ
易くまた製造上容器形状が制約を受け自由にデザ
インすることができない問題があり、後者は割れ
の問題はないが重いため携帯の負担となる。(Prior art) Conventional vacuum containers are made of glass or stainless steel, and although the former has good heat retention performance, there are problems in that it breaks easily and the shape of the container is restricted during manufacturing, making it difficult to design freely. Although there is no problem with cracking, it is heavy and becomes a burden on mobile phones.
（技術的課題）
而して真空容器を合成樹脂製とすれば、形状の
自由さや軽量性、割れにくい等の利点が発揮され
るが、実用化されていない。(Technical Issue) If the vacuum container were made of synthetic resin, it would have advantages such as freedom of shape, light weight, and resistance to breakage, but it has not been put to practical use.
本発明は前記の欠点や問題点を真空引き技術の
改良により解決したもので、その目的は真空容器
の製造のために２重の容器本体の外瓶に設けた空
気排出口を真空引き装置に接続し、該引き装置内
で所定の真空度に於いて別製の栓蓋を前記排出口
に固着することにより高品質かつ品質の安定した
真空容器の製造が実施できかつ真空引き効率も向
上し得る製造方法及び真空引き装置を提供するこ
とにある。 The present invention solves the above-mentioned drawbacks and problems by improving the vacuum evacuation technology.The purpose of the present invention is to connect the air outlet provided in the outer bottle of the double container body to the vacuum evacuation device for manufacturing vacuum containers. By connecting and fixing a separate stopper lid to the outlet at a predetermined degree of vacuum within the pulling device, it is possible to manufacture a vacuum container of high quality and stable quality, and the vacuum drawing efficiency is also improved. An object of the present invention is to provide a manufacturing method and a vacuum evacuation device.
（技術的手段）
前記目的は、合成樹脂により型形成された空気
排出口を有する外瓶とその内側に配置される中瓶
を夫々の口部で固着手段により接合し、２重の容
器本体を形成する接合工程と、外瓶に設けた空気
排出口を、真空引き装置の接続口に接続し、外瓶
と中瓶の間の空間から真空引き装置により空気を
排出する真空引き工程と、前記空気排出口に対し
て進退可能に真空引き装置に組込まれたプランジ
ヤーを所定真空度に於いて作動させ、プランジヤ
ー先端にセツトした栓蓋を空気排出口に嵌合し、
該栓蓋と空気排出口との間に介在させた溶着手段
を高周波誘導手段により加熱し栓蓋を空気排出口
に永久固着する密閉工程、を含む合成樹脂製真空
容器の製造方法により達成される。(Technical Means) The above object is to connect an outer bottle having an air outlet molded from synthetic resin and an inner bottle disposed inside the outer bottle at their respective openings by means of fixing means, thereby forming a double container body. a bonding step of forming the outer bottle, a vacuum drawing step of connecting an air outlet provided on the outer bottle to a connection port of a vacuum drawing device, and discharging air from the space between the outer bottle and the inner bottle with the vacuum drawing device; A plunger built into the vacuum device that can move forward and backward with respect to the air outlet is operated at a predetermined degree of vacuum, and a stopper lid set at the tip of the plunger is fitted to the air outlet.
This is achieved by a method for manufacturing a synthetic resin vacuum container, which includes a sealing step of permanently fixing the stopper to the air outlet by heating the welding means interposed between the stopper and the air outlet using high-frequency induction means. .
また前記方法の実施には、空気排出口を有する
外瓶とその内側に配置される中瓶を一体化した、
２重の合成樹脂性容器本体の前記空気排出口が密
接する接続口を有し、かつ容器本体の空間と通じ
る真空ポンプ側の真空作業室と、該作業室内で前
記接続口に対し進退可能に組込まれたプランジヤ
ーとを備え、プランジヤーは空気排出口を所定真
空度で閉塞する栓蓋をセツトする伸縮杆と、真空
室外から操作する駆動杆との接続部が伸縮シール
部材により密閉された構成を有する合成樹脂製真
空容器の真空引き装置を用いるのが最も望まし
い。 Further, in carrying out the above method, an outer bottle having an air outlet and an inner bottle disposed inside the outer bottle are integrated.
The air outlet of the double synthetic resin container body has a connection port that is in close contact with the vacuum work chamber on the vacuum pump side that communicates with the space of the container body, and the work chamber is movable toward and away from the connection port. A built-in plunger is provided, and the plunger has a telescoping rod that sets a stopper lid that closes the air outlet at a predetermined degree of vacuum, and a connecting portion between the drive rod that is operated from outside the vacuum chamber is sealed by a telescoping seal member. It is most desirable to use a vacuum evacuation device for a synthetic resin vacuum container.
（実施例）
装置的構成
次にその内容を図示の実施例に基づいて説明す
ると、まず第３図は本発明により製造される合成
樹脂製真空容器を示すもので、１は外瓶２と中瓶
３とから成る合成樹脂製の容器本体であり、外瓶
２及び中瓶３はいずれもガスバリヤー性を有する
合成樹脂により型成形したものである。容器本体
１の材料としては、少なくとも100℃を十分に越
える耐熱性を有し、機械的強度、耐衝撃性及び、
寸法安定性の良いものであることが必要である。
これらの性質を有し、かつ成形性良好なものとし
て、ポリカーボネートが研究の結果見出された。
ポリカーボネートは前記の要求をすべて満すほ
か、熱伝導率が非常に小さいため放熱ロスが少な
く保温性が良い利点がある。４は反射膜で、両瓶
２，３の対向面即ち外瓶２の内面と中瓶３の外面
全面にアクリル樹脂等の高透明度の合成樹脂膜４
ａをコーテイングした上に、Al（アルミニウム）
を蒸着等適宜の手段により形成される。尚外瓶２
の内面でなく外面に反射膜４を設けても良い。６
は外瓶２の耐圧底部に開口した空気排出口で、両
瓶２，３間の空間５から空気を排出し所定真空度
の断熱空間とするために、後述の真空引き装置と
接続される。７は空気排出口６の内側に螺合させ
たポリカーボネート製の底板即ち栓蓋、８は栓蓋
７と空気排出口６との間にそれらの溶着手段とし
て介在させた導電性の高周波誘導用シヨートリン
グ、９は外瓶２と中瓶３の接合部に介在させた前
記と同様の溶着手段であるシヨートリング、１０
は中瓶３の接合鍔部、１１は中瓶３の直径と略等
しい口径を持たせた真空容器の広口を示す。(Example) Apparatus configuration Next, the contents will be explained based on the illustrated example. First, FIG. 3 shows a synthetic resin vacuum container manufactured according to the present invention. The outer bottle 2 and the inner bottle 3 are both molded from a synthetic resin having gas barrier properties. The material for the container body 1 should have heat resistance well above at least 100°C, mechanical strength, impact resistance, and
It is necessary to have good dimensional stability.
As a result of research, polycarbonate was found to have these properties and good moldability.
In addition to meeting all of the above requirements, polycarbonate has the advantage of having very low thermal conductivity, resulting in little heat loss and good heat retention. 4 is a reflective film, and a highly transparent synthetic resin film 4 such as acrylic resin is applied to the opposing surfaces of both bottles 2 and 3, that is, the inner surface of the outer bottle 2 and the entire outer surface of the inner bottle 3.
On top of coating a, Al (aluminum)
is formed by appropriate means such as vapor deposition. Shogai bottle 2
The reflective film 4 may be provided on the outer surface instead of the inner surface. 6
is an air discharge port opened at the pressure-resistant bottom of the outer bottle 2, and is connected to a vacuum evacuation device to be described later in order to exhaust air from the space 5 between the two bottles 2 and 3 to create an adiabatic space with a predetermined degree of vacuum. 7 is a polycarbonate bottom plate screwed onto the inside of the air outlet 6, and 8 is a conductive high-frequency induction shot ring interposed between the closure 7 and the air outlet 6 as a welding means. , 9 is a shot ring 10 which is a welding means similar to the above and is interposed at the joint between the outer bottle 2 and the inner bottle 3.
11 indicates the joint flange of the medium bottle 3, and 11 indicates the wide mouth of the vacuum container having a diameter approximately equal to the diameter of the medium bottle 3.
この合成樹脂性真空容器は第１図に示す工程に
従つて製造される。尚第２図は本発明に係る製造
方法の実施に直接使用する真空引き装置を示して
おり、図中１２は油拡散式真空ポンプの吸引フラ
ンジ、１３はその真空作業室１４に進退可能に組
込んだプランジヤーで、プランジヤー１３の先端
部には前記栓蓋７の取付部１５が設けてあり、真
空作業室１４の接続口１６と、外瓶２の空気排出
口６との間及びプランジヤー１３と吸引フランジ
１２との間には気密を維持するシール部材１７，
１８が夫々設けてある。接続口部分のシール部材
１７は例えばネオプレン製Ｏリング類で良いが、
後者のシール部材１８にはプランジヤー１３の伸
縮杆１９と真空作業室１４外から操作される駆動
杆２０の相対移動に追従させるため金属ベローズ
式のものを使用している。第２図の例は伸縮杆１
９と駆動杆２０とを捩子部により連結し駆動杆２
０をそのハンドル２１により手動操作する。２２
は真空引き後容器本体１を装置から取外すリーク
バルブを示す。尚栓蓋７の固着手段は接着等でも
良い。 This synthetic resin vacuum container is manufactured according to the steps shown in FIG. FIG. 2 shows a vacuum evacuation device that is directly used in carrying out the manufacturing method according to the present invention. The plunger 13 has a mounting part 15 for the stopper lid 7 at its tip, and is connected between the connection port 16 of the vacuum working chamber 14 and the air outlet 6 of the outer bottle 2 and between the plunger 13 and the stopper lid 7. A seal member 17 that maintains airtightness is provided between the suction flange 12 and the suction flange 12.
18 are provided respectively. The sealing member 17 at the connection port may be, for example, a neoprene O-ring.
The latter seal member 18 is of a metal bellows type in order to follow the relative movement of the telescopic rod 19 of the plunger 13 and the drive rod 20 operated from outside the vacuum working chamber 14. The example in Figure 2 is telescopic rod 1.
9 and the drive rod 20 are connected by a screw part to form the drive rod 2.
0 is manually operated by its handle 21. 22
indicates a leak valve for removing the container body 1 from the apparatus after evacuation. The means for fixing the stopper lid 7 may be adhesive or the like.
製造方法
而して、本発明により合成樹脂製真空容器の製
造を実施するには、まず、型成形し、反射膜４を
形成した外瓶２と中瓶３の鍔部１１にシヨートリ
ング１０を介在させて高周波誘導手段により両瓶
２，３を接合し（第１図Ｂ）、一体化した２重の
容器本体１を真空引き装置の吸引フランジ側にセ
ツトし、空気排出口６から真空引き装置により空
気を排出し両瓶２，３間の空間５に真空状態を作
る（同図Ｃ）。この際プランジヤー１３は真空引
き経路に顕著に突出せず断面積を狭めないように
すると真空引き効率はより高く保たれる。そし
て、予め栓蓋７をセツトしたプランジヤー１３を
作動させ、設定真空度のもとに外瓶２の空気排出
口６に栓蓋７を永久固着させるもので（同図Ｄ）、
該固着作業は前記と同様の高周波誘導手段により
行なう。 Manufacturing method To manufacture a synthetic resin vacuum container according to the present invention, first, a shot ring 10 is inserted between the flanges 11 of the outer bottle 2 and the inner bottle 3, which are molded and have the reflective film 4 formed thereon. Then, both bottles 2 and 3 are joined by high-frequency induction means (Fig. 1B), and the integrated double container body 1 is set on the suction flange side of the vacuum device, and the vacuum device is connected from the air outlet 6. The air is exhausted and a vacuum is created in the space 5 between the bottles 2 and 3 (C in the same figure). At this time, if the plunger 13 does not protrude significantly into the vacuum path and its cross-sectional area is not narrowed, the vacuum efficiency can be maintained higher. Then, the plunger 13 with the stopper lid 7 set in advance is activated to permanently fix the stopper lid 7 to the air outlet 6 of the outer bottle 2 under the set vacuum level (D in the same figure).
The fixing operation is performed using the same high frequency induction means as described above.
（作用効果）
以上の構成により容器本体１の形状は型成形で
形成できるから自由にデザインを設定でき、かつ
容器本体１に対し真空引き装置により真空引き
し、この真空引き装置内に於いてプランジヤーに
予めセツトする栓蓋７により空気排出口６を閉じ
るため、容器本体１の真空度を設定値に容易に合
わせて確実に密閉することができ、また従来のガ
ラス製のものと異なり真空引き口を適当な口径に
設定し易いので真空引きの効率を向上させること
が可能である。即ち、真空度が10-2torrを越える
と、引き口径が小さい場合、急に効率が低下する
が、本発明によれば空気排出口６の口径を十分大
きく設定でき、またプランジヤー１３を排出口６
から離し、排気を妨げずに、真空引きすることに
より、空気排出が円滑に行なわれるので10-5torr
程度までは問題なく引くことができる。またガラ
ス、ステンレス製に対し本発明によれば真空引き
後シールのための溶接工程が必要なく、ガスの発
生もなく、かつゲツター処理工程も不要のため生
産性も優れている。尚真空容器も合成樹脂製であ
るため軽く、しかも割れにくく、特にポリカーボ
ネートを使用したものは、十分な耐熱性と熱伝導
率が小さいことと相俟つてガラス製に優るとも劣
らないものを製造できる効果がある。(Function and Effect) With the above configuration, the shape of the container body 1 can be formed by molding, so the design can be freely set, and the container body 1 is evacuated by a vacuum device, and a plunger is used in the vacuum device. Since the air outlet 6 is closed with a stopper lid 7 that is set in advance, the degree of vacuum in the container body 1 can be easily adjusted to the set value and the air outlet 6 can be sealed securely. Since it is easy to set the diameter to an appropriate diameter, it is possible to improve the efficiency of vacuuming. That is, when the degree of vacuum exceeds 10 -2 torr, the efficiency suddenly decreases when the suction diameter is small, but according to the present invention, the diameter of the air exhaust port 6 can be set sufficiently large, and the plunger 13 can be connected to the exhaust port. 6
10 -5 Torr
You can pull it up to a certain extent without any problem. Furthermore, in contrast to glass and stainless steel, the present invention does not require a welding process for sealing after vacuuming, does not generate gas, and does not require a getter treatment process, resulting in excellent productivity. Vacuum containers are also made of synthetic resin, so they are light and hard to break.In particular, those made of polycarbonate have sufficient heat resistance and low thermal conductivity, making it possible to manufacture containers that are as good as glass ones. effective.
図は本発明に係る合成樹脂製真空容器の製造方
法及び真空引き装置の実施例を示すもので、第１
図は製造方法の工程図、第２図は製造方法の実施
に直接使用する真空引き装置に容器本体を接続し
た状態の断面図、第３図は真空容器の部分断面
図、第４図は真空容器の要部断面図である。
１……容器本体、２……外瓶、３……中瓶、４
……反射膜、５……空間、６……空気排出口、７
……栓蓋、１２……吸引フランジ、１３……プラ
ンジヤー。
The figure shows an embodiment of the method for manufacturing a synthetic resin vacuum container and vacuum evacuation device according to the present invention.
The figure is a process diagram of the manufacturing method, Figure 2 is a cross-sectional view of the container body connected to the vacuum device used directly in implementing the manufacturing method, Figure 3 is a partial cross-sectional view of the vacuum container, and Figure 4 is a vacuum FIG. 3 is a sectional view of a main part of the container. 1...Container body, 2...Outer bottle, 3...Medium bottle, 4
... Reflective film, 5 ... Space, 6 ... Air outlet, 7
... Tap lid, 12 ... Suction flange, 13 ... Plunger.
Claims (1)
する外瓶とその内側に配置される中瓶を夫々の口
部で固着手段により接合し、２重の容器本体を形
成する接合工程と、 外瓶に設けた空気排出口を、真空引き装置の接
続口に接続し、外瓶と中瓶の間の空間から真空引
き装置により空気を排出する真空引き工程と、 前記空気排出口に対して進退可能に真空引き装
置に組込まれたプランジヤーを所定真空度に於い
て作動させ、プランジヤー先端にセツトした栓蓋
を空気排出口に嵌合し、該栓蓋と空気排出口との
間に介在させた溶着手段を高周波誘導手段により
加熱し栓蓋を空気排出口に永久固着する密閉工
程、を含む合成樹脂製真空容器の製造方法。 ２ 接合工程に於いて、外瓶と中瓶の接合箇所に
も溶着手段を介在させ、高周波誘導手段により加
熱溶着させることを特徴とする特許請求の範囲第
１項記載の合成樹脂製真空容器の製造方法。 ３ 空気排出口を有する外瓶とその内側に配置さ
れる中瓶を一体化した、２重の合成樹脂性容器本
体の前記空気排出口が密接する接続口を有し、か
つ容器本体の空間と通じる真空ポンプ側の真空作
業室と、該作業室内で前記接続口に対し進退可能
に組込まれたプランジヤーとを備え、プランジヤ
ーは空気排出口を所定真空度で閉塞する栓蓋をセ
ツトする伸縮杆と、真空室外から操作する駆動杆
との接続部が伸縮シール部材により密閉された構
成を有する合成樹脂製真空容器の真空引き装置。[Scope of Claims] 1. An outer bottle having an air outlet formed in a mold from synthetic resin and an inner bottle placed inside the outer bottle are joined at their mouths by fixing means to form a double container body. a bonding step; a vacuuming step of connecting an air outlet provided on the outer bottle to a connection port of a vacuum evacuation device and discharging air from the space between the outer bottle and the inner bottle with the vacuum evacuation device; A plunger built into the vacuum device so as to be able to move forward and backward with respect to the outlet is operated at a predetermined degree of vacuum, and the stopper lid set at the tip of the plunger is fitted into the air outlet, and the connection between the stopper cover and the air outlet is made. A method for manufacturing a synthetic resin vacuum container, comprising a sealing step of permanently fixing a stopper lid to an air outlet by heating a welding means interposed therebetween by a high-frequency induction means. 2. The synthetic resin vacuum container according to claim 1, characterized in that in the joining process, a welding means is also interposed at the joint between the outer bottle and the inner bottle, and the welding is carried out by heating using high frequency induction means. Production method. 3. A double synthetic resin container body that integrates an outer bottle with an air outlet and an inner bottle placed inside the container, the air outlet of which has a connection port that is in close contact with the space of the container body. It is equipped with a vacuum working chamber on the side of the vacuum pump that communicates with the air outlet, and a plunger built into the working chamber so as to be able to move forward and backward with respect to the connection port, and the plunger includes a telescoping rod that sets a cap that closes the air outlet at a predetermined degree of vacuum. , a vacuum evacuation device for a synthetic resin vacuum container having a structure in which a connection part with a drive rod operated from outside the vacuum chamber is sealed by a telescopic sealing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9375984A JPS60236734A (en) | 1984-05-09 | 1984-05-09 | Manufacture of synthetic resin vacuum container and evacuator therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9375984A JPS60236734A (en) | 1984-05-09 | 1984-05-09 | Manufacture of synthetic resin vacuum container and evacuator therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60236734A JPS60236734A (en) | 1985-11-25 |
| JPS646943B2 true JPS646943B2 (en) | 1989-02-07 |
Family
ID=14091356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9375984A Granted JPS60236734A (en) | 1984-05-09 | 1984-05-09 | Manufacture of synthetic resin vacuum container and evacuator therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60236734A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53141784A (en) * | 1977-05-13 | 1978-12-09 | Nobukiyo Sugioka | Method of and device for automatically attaching mat to internal bottle |
| JPS5459662A (en) * | 1977-10-20 | 1979-05-14 | Nippon Oxygen Co Ltd | Preparation of thermos in metal |
-
1984
- 1984-05-09 JP JP9375984A patent/JPS60236734A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60236734A (en) | 1985-11-25 |
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