JPH09289950A - Vacuum sealing method and sealing structure for thermos bottle - Google Patents
Vacuum sealing method and sealing structure for thermos bottleInfo
- Publication number
- JPH09289950A JPH09289950A JP14062096A JP14062096A JPH09289950A JP H09289950 A JPH09289950 A JP H09289950A JP 14062096 A JP14062096 A JP 14062096A JP 14062096 A JP14062096 A JP 14062096A JP H09289950 A JPH09289950 A JP H09289950A
- Authority
- JP
- Japan
- Prior art keywords
- port
- vacuum
- exhaust port
- double
- container
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用の分野】本発明は、温水や冷水等すべて
の液状の内容物を保温貯蔵する携帯用真空魔法瓶の密閉
に関するもので、特に二重容器の真空度を高めて製品性
を向上出来る魔法瓶の真空密封方法及び密封構造に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the sealing of a portable vacuum thermos for keeping all liquid contents such as hot water and cold water at a warm temperature. The present invention relates to a vacuum sealing method and a sealing structure for a thermos bottle.
【０００２】[0002]
【従来の技術】一般的に真空魔法瓶は、液状の内容物を
保温貯蔵する貯蔵容器の中で最も普遍的に広く利用され
ているが、このような真空魔法瓶は通常内容器と外容器
でなる二重容器で構成され、この二重容器の内外容器の
間で提供される空間間隔を真空排気し、目的とする保温
のための真空の断熱壁を形成して魔法瓶を製造してい
る。2. Description of the Related Art Generally, vacuum thermos bottles are the most widely used among the storage containers for keeping liquid contents warm, but such vacuum thermos bottles usually consist of an inner container and an outer container. The thermos is manufactured by forming a double container, and evacuating the space provided between the inner container and the outer container of the double container to form a vacuum heat insulating wall for heat retention.
【０００３】このような真空二重容器になる魔法瓶は、
通常沸いた湯を保温貯蔵する貯蔵容器として主に多く使
用されている。このような真空二重容器において最も重
要な間題点として指摘されることは、二重容器をなす真
空断熱壁の真空維持である。而して、このように構成さ
れる真空二重容器製造方法は、現在まで種々開発され使
用されている。例えば、一般的に内容器と外容器を接合
して二重容器を形成し、この内外容器の中，外容器の底
面の適当な位置に排気口を備えて、真空加熱炉内で二重
容器の内外容器の間の空間間隔を真空排気して真空二重
容器を製造している。A thermos bottle which becomes such a vacuum double container is
It is mainly used as a storage container for keeping hot water in a warm condition. What is pointed out as the most important issue in such a vacuum double container is to maintain the vacuum of the vacuum insulation wall forming the double container. Thus, various vacuum double container manufacturing methods having such a structure have been developed and used to date. For example, in general, an inner container and an outer container are joined to form a double container, and an exhaust port is provided at an appropriate position in the inner and outer containers and on the bottom surface of the outer container, and the double container is placed in a vacuum heating furnace. The vacuum double container is manufactured by evacuating the space between the inner and outer containers.
【０００４】さらに具体的に説明すると、内外容器の接
合工程を経た後、この二重容器を適当な加熱温度の真空
加熱炉内での種々の加工段階の工程過程で、その二重容
器の側壁に接着された油類または異物質達を加熱によっ
て焼却処理すると共に、二重容器の空間間隔を真空排気
している。この際、真空加熱炉内で真空排気後必然的に
二重容器の外容器底面に備えられている排気口を密封す
るが、このような排気口の密封は二重容器の真空維持、
即ち真空二重容器の断熱作用に直接的に影響を与える
等、製品性を左右するもので、真空二重容器において非
常に重要な部分である。More specifically, after passing through the step of joining the inner and outer containers, the double container is subjected to various processing steps in a vacuum heating furnace at an appropriate heating temperature to process the sidewalls of the double container. The oils or foreign substances adhered to are incinerated by heating, and the space between the double containers is evacuated. At this time, after evacuation in a vacuum heating furnace, the exhaust port provided on the bottom surface of the outer container of the double container is inevitably sealed, but such sealing of the exhaust port maintains the vacuum of the double container,
In other words, it directly affects the heat insulation effect of the vacuum double container and affects product properties, and is a very important part of the vacuum double container.
【０００５】このような排気口の密封方法は、近来に至
って魔法瓶の製造単価を減らし真空度を向上させるため
に多くの研究と開発が要求されている。その一例とし
て、平成６年日本国特許出願公開第１６９８５０号を挙
げることが出来る。このような真空二重容器の製造方法
は内容器と外容器が適当な間隔を置いて空間間隔が提供
されるように、集合されている二重容器の底面に排気口
を備え、この排気口に低温で溶着の可能な固形の溶材を
配置した後、真空加熱炉内で加熱させ空間間隔内を真空
排気させると共に、溶材を溶融させて排気口を密封する
ものである。[0005] Such exhaust gas sealing method has recently been required a lot of research and development in order to reduce the manufacturing unit price of the thermos bottle and improve the vacuum degree. As an example thereof, Japanese Patent Application Publication No. 169850 published in 1994 can be cited. The method of manufacturing such a vacuum double container is equipped with an exhaust port on the bottom surface of the assembled double container so that the inner container and the outer container are provided with an appropriate space to provide a space interval. After arranging a solid meltable material that can be welded at a low temperature, the material is heated in a vacuum heating furnace to evacuate the space interval, and the melted material is melted to seal the exhaust port.
【０００６】[0006]
【発明が解決しようとする課題】しかし、このような密
封方法において、真空二重容器の排気口を密封させる溶
材の溶融時（蒸気圧）に、その溶材組成物が化学作用を
起こし、特に接合材等で必然的にガスが発生し、そのガ
ス発生により溶材が膨れ上り、この膨れ上りは溶材の粒
子組織を散らして密接度を落とし、甚だしい場合は密封
部分の気密性を失う等、真空二重容器に致命的な問題を
与え、この為加工工程で廃棄処理されることを余儀なく
されるなど不良品が多くでるという問題点があった。However, in such a sealing method, when the melted material that seals the exhaust port of the vacuum double container is melted (vapor pressure), the melted material composition causes a chemical action, and in particular, it is bonded. Inevitably gas is generated in the material, etc., and due to the gas generation, the molten material swells, and this swelling disperses the particle structure of the molten material to reduce the closeness, and in extreme cases, the airtightness of the sealed part is lost, etc. There has been a problem in that a large number of defective products are produced by giving a fatal problem to the heavy container and forcing them to be discarded in the processing process.
【０００７】また、このような密封方法は低温で融点を
持っているが、魔法瓶の断熱効果が劣り、従って貯蔵性
及び製品性が劣るという問題点があった。即ち、低温で
溶着は消費電力費用の節減効果を得たが、真空二重容器
の真空度が低いという欠点がある。つまり真空度は、真
空加熱炉内の溶材の融点以上の温度が秀れているからで
ある。低温で溶着される溶材では真空加熱炉の温度が上
昇する以前に密封され低い温度内で真空をなしているの
で、真空加熱炉の温度に比例してその真空度が下がると
いう問題が生じたのである。Further, although such a sealing method has a melting point at a low temperature, there is a problem that the heat insulating effect of the thermos bottle is inferior, and thus the storability and the productability are inferior. That is, welding at a low temperature has an effect of reducing power consumption cost, but has a drawback that the vacuum degree of the vacuum double container is low. That is, the degree of vacuum is excellent at a temperature equal to or higher than the melting point of the molten material in the vacuum heating furnace. Since the molten material that is welded at a low temperature is sealed before the temperature of the vacuum heating furnace rises and forms a vacuum in a low temperature, the degree of vacuum decreases in proportion to the temperature of the vacuum heating furnace. is there.
【０００８】[0008]
【課題を解決するための手段】本発明は上記のような事
情を考慮してなされたもので、その目的は溶材の密接度
は勿論のこと、二重容器の真空度を高め断熱効果を優秀
にし保温性を向上させ製品性を高めることが出来る魔法
瓶の真空密封方法及びその密封構造を提供するものであ
る。The present invention has been made in consideration of the above circumstances, and its purpose is not only the closeness of the molten material but also the degree of vacuum of the double container to enhance the heat insulating effect. Provided are a vacuum sealing method and a sealing structure for a thermos which can improve heat retention and product properties.
【０００９】この本発明の目的は、魔法瓶の真空二重容
器を製造することによって達成されるが、この魔法瓶は
金属材の内容器と外容器を空間間隔が維持されるように
接合して二重容器を構成し、この二重容器の外容器底面
の適当な位置に排気口と、その排気口と多少距離を置い
て高い位置に備えられる配置口に低温溶融セラミック溶
材を載せて置き、この二重容器を真空加熱炉内で、初め
に適合する１次加熱温度でセラミック溶材を熱化溶融し
た後、セラミック溶材の熱化温度より高い温度の２次加
熱温度で内外容器の間で提供される空間間隔を真空排気
すると同時に溶材のガス流出をなし熱化溶融状態で充分
に安定された溶材が配置口から流れ下って排気口を密封
させるようにしている。従って、真空度が高く保温性が
優秀で貯蔵性は勿論のこと商品性を高めるようになる。The object of the present invention is achieved by manufacturing a vacuum double container for a thermos bottle, which is constructed by joining an inner container and an outer container made of a metal material so as to maintain a space between them. A heavy container is constructed, and an exhaust port is placed at an appropriate position on the bottom surface of the outer container of this double container, and a low temperature melting ceramic melt material is placed on an arranging port provided at a higher position with a slight distance from the exhaust port. The double container is provided in the vacuum heating furnace between the inner container and the outer container at a second heating temperature higher than the heating temperature of the ceramic molten material after the ceramic molten material is first heat-melted at the corresponding primary heating temperature. At the same time, the space interval is exhausted by vacuum, and at the same time, the molten material does not flow out of the gas, and the sufficiently stable molten material flows down from the arrangement port to seal the exhaust port. Therefore, the degree of vacuum is high, the heat retaining property is excellent, and the storability as well as the commercial property is improved.
【００１０】[0010]
【実施例】以下、本発明の一実施例を図面に依り具体的
に説明すると次の通りである。図１は、一般的な魔法瓶
の構造に関して詳細に図示されているが、このような魔
法瓶は真空の二重容器１００になっている。この二重容
器１００は、内容器１１０と外容器１２０が適当な間隔
を置いて真空状態の空間間隔１３０が維持されるように
接合して構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will specifically describe one embodiment of the present invention with reference to the drawings. 1 is shown in detail with respect to the structure of a general thermos, such a thermos is a vacuum double container 100. The double container 100 is constructed by joining an inner container 110 and an outer container 120 with an appropriate space therebetween so that a space space 130 in a vacuum state is maintained.
【００１１】図２には、二重容器１００の空間間隔１３
０を真空状態に維持させる密封構造が詳細に図示されて
いる。即ち、二重容器１００の外容器１２０底面の適当
な位置に、排気口１２１を備えて低温溶融のセラミック
溶材１２２を密封させている。In FIG. 2, the space spacing 13 of the double container 100 is shown.
The sealing structure for keeping the zero in a vacuum is shown in detail. That is, an exhaust port 121 is provided at an appropriate position on the bottom surface of the outer container 120 of the double container 100 to seal the low temperature melting ceramic material 122.
【００１２】この実施例は上記のように二重容器１００
の空間間隔１３０を真空状態に維持させる密封方法及び
密封構造に関するもので、図３はその一例であり二重容
器の底面３４０中央に排気口３４１を具備する。このよ
うな排気口３４１は適当なプレス工程で押出成形されて
適当な深さを持っている。この排気口３４１は二重容器
の空間間隔１３０の真空排気のための排気通路として提
供される。In this embodiment, as described above, the double container 100 is used.
FIG. 3 relates to a sealing method and a sealing structure for maintaining the space interval 130 in a vacuum state, and FIG. 3 is an example thereof, and an exhaust port 341 is provided at the center of the bottom surface 340 of the double container. Such an exhaust port 341 has an appropriate depth by being extruded by an appropriate pressing process. The exhaust port 341 is provided as an exhaust passage for vacuum exhaust of the space interval 130 of the double container.
【００１３】また、このように排気口３４１が備えられ
た二重容器の底面３４０の適当な位置、即ち排気口３４
１から多少の距離をおいてその排気口３４１より上向い
た位置に、上記排気口３４１に適合したプレス工程で押
出成形される配置口３４２が備えられている。この際、
配置口３４２は排気口３４１を密封するセラミック溶材
３２２が置かれる面積部を提供するようになる。In addition, an appropriate position of the bottom surface 340 of the double container having the exhaust port 341, that is, the exhaust port 34.
An arrangement port 342, which is extruded by a pressing process suitable for the exhaust port 341, is provided at a position slightly above 1 and upward from the exhaust port 341. On this occasion,
The placement port 342 provides an area part on which the ceramic molten material 322 that seals the exhaust port 341 is placed.
【００１４】さらに、上記排気口３４１と配置口３４２
の間を連結通路３４３で連結している。このような連結
通路３４３は底面３４０から適当な深さを持って配置さ
れ、この連結通路３４３は、図３および後述するセラミ
ック溶材３２２が熱化され配置口３４２でゲル化状態に
溶融された溶材を、排気口３４１内に流下し送る経路を
提供するようになる。この際、連結通路３４３は適当な
勾配を持って溶融された溶材が円滑に流れ下りることが
出来る勾配を持っている。Further, the exhaust port 341 and the arrangement port 342 are provided.
The spaces are connected by a connection passage 343. Such a connecting passage 343 is arranged with an appropriate depth from the bottom surface 340. The connecting passage 343 has a molten material melted in a gel state at the arrangement port 342 by heating the ceramic molten material 322 described later with reference to FIG. To provide a path for flowing the air into the exhaust port 341. At this time, the connection passage 343 has a gradient that allows the molten material melted with an appropriate gradient to flow down smoothly.
【００１５】一方、セラミック溶材３２２はセルラン、
タルル化合物系のセラミックとか、アルミナ、硅素系の
セラミックを焼結加工処理して製造される。このような
セラミック溶材３２２は柚薬を添加して適当なプレス工
程を通して所定の形態を持って焼結製造される。そし
て、このセラミック溶材３２２は焼成された後に排気口
３４１から剥離されるが亀裂の生じないように、即ち焼
付時に柚薬の熱膨張係数と素地（ステンレス）の線膨張
係数を可能な限り近接させて剥離や亀裂現象が起らない
ようにする。この際、セラミック溶材の加工温度は４５
０℃−９００℃以下で実施する。On the other hand, the ceramic melt 322 is made of cellulan,
It is manufactured by sintering and processing a tarul compound-based ceramic, or an alumina or silicon-based ceramic. Such a ceramic material 322 is sinter-manufactured with a predetermined shape through an appropriate pressing process with addition of citrus. The ceramic melt 322 is separated from the exhaust port 341 after being fired, but cracks do not occur, that is, the coefficient of thermal expansion of the citrus and the coefficient of linear expansion of the base material (stainless steel) are made as close as possible during baking. To prevent peeling and cracking. At this time, the processing temperature of the ceramic molten material is 45
It is carried out at 0 ° C to 900 ° C or lower.
【００１６】また、図５及び図６は本発明の他の実施例
であって、上記と同一の構成部分は同一の符号を付与
し、その説明を省略する。而して、二重容器の底面４４
０中央に排気口４４１を具備する。この排気口４４１は
二重容器の空間間隔１３０の真空排気のための排気通路
として提供される。5 and 6 show another embodiment of the present invention, in which the same components as those described above are designated by the same reference numerals, and their description will be omitted. Thus, the bottom surface 44 of the double container
An exhaust port 441 is provided at the center. The exhaust port 441 is provided as an exhaust passage for vacuum exhaust of the space interval 130 of the double container.
【００１７】また、このように排気口４４１が具備され
る二重容器の底面４４０の適当な位置に、即ち排気口４
４１と同一平面位置に配置口４４２が備えられ、この配
置口４４２は排気口４４１より上向いた位置に設置され
る。この際、配置口４４２は排気口４４１を密封するセ
ラミック溶材４２２が置かれる面積部を提供する。In addition, the bottom surface 440 of the double container provided with the exhaust port 441 is located at an appropriate position, that is, the exhaust port 4
An arrangement port 442 is provided in the same plane position as 41, and the arrangement port 442 is installed at a position facing upward from the exhaust port 441. At this time, the arrangement port 442 provides an area portion on which the ceramic melt 422 for sealing the exhaust port 441 is placed.
【００１８】また、上記排気口４４１と配置口４４２の
間を連結通路４４３で連結している。このような連結通
路４４３は底面４４０から適当な深さ、即ち上記排気口
４４１及び配置口４４２と同一平面上に設置され、この
連結通路４４３はセラミック溶材４２２が熱化され配置
口４４２でゲル化状態に溶融された溶材を排気口４４１
内に流下し送る経路を提供するようになる。この際、上
記配置口４４２、連結通路４４３及び排気口４４１は適
当な勾配を持つもので、溶融された溶材が円滑に流下出
来る勾配を持っている。A connecting passage 443 connects the exhaust port 441 and the disposing port 442. The connecting passage 443 is installed at an appropriate depth from the bottom surface 440, that is, on the same plane as the exhaust port 441 and the disposing port 442. The connecting passage 443 is gelated at the disposing port 442 when the ceramic melt 422 is heated. Exhaust port 441 of molten material melted into a state
It will provide a route to flow in and out. At this time, the arrangement port 442, the connecting passage 443, and the exhaust port 441 have an appropriate gradient so that the molten material can flow down smoothly.
【００１９】次いで、図３を参照しながら真空魔法瓶の
真空密封方法に関して説明する。この実施例は二重容器
を第１段階、第２段階及び第３段階の電熱式真空加熱炉
を通過しながら、二重容器の周壁面に付着された油類や
異物質等の有機物を焼却処理する熱処理工程を遂行す
る。このような熱処理工程は既存のものとほぼ同一の方
法である。Next, a vacuum sealing method for the vacuum thermos will be described with reference to FIG. In this embodiment, while passing through the double container through the first-stage, second-stage, and third-stage electrothermal vacuum furnaces, organic substances such as oils and foreign substances attached to the peripheral wall surface of the double container are incinerated. A heat treatment process is performed. Such a heat treatment process is almost the same as the existing one.
【００２０】上記のように真空加熱炉を通過した後、最
終段階の真空炉で二重容器真空間隔の真空排気後その排
気口を密閉させる密封方法に関するもので、図３は配置
口３４２上に置かれたセラミック溶材３２２が熱化され
る前の模様である。このような状態で真空加熱炉が所定
の１次加熱温度に上昇されると、配置口３４２に置かれ
たセラミック溶材３２２は溶融を開始する。After passing through the vacuum heating furnace as described above, it relates to a sealing method in which the exhaust port is hermetically closed after the vacuum exhaust of the double container in the final stage of the vacuum furnace, and FIG. It is a pattern before the placed ceramic melt 322 is heated. When the vacuum heating furnace is heated to a predetermined primary heating temperature in such a state, the ceramic molten material 322 placed in the arrangement port 342 starts melting.
【００２１】この際、セラミック溶材３２２は、排気口
３４１と距離を置いてその排気口位置より多少高い位置
に備えられた配置口３４２上で熱化されるが、その熱化
された溶材３２２は排気口３４１上で遠距離位置にあっ
て排気口を直接密封出来ないようになる。このような状
態で、真空加熱炉の温度が漸次的に昇温され２次加熱温
度に、この時真空加熱炉が蒸気圧以上に加熱されると、
溶材３２２からはガスが発生すし、この状態で真空排気
工程を遂行して可能な高い真空度が得られるようにな
る。At this time, the ceramic molten material 322 is heated on the arrangement port 342 provided at a position slightly higher than the exhaust port position with a distance from the exhaust port 341, but the heated molten material 322 is Since the exhaust port is located at a long distance on the exhaust port 341, the exhaust port cannot be directly sealed. In such a state, when the temperature of the vacuum heating furnace is gradually raised to the secondary heating temperature, and when the vacuum heating furnace is heated to the vapor pressure or more,
Gas is generated from the molten material 322, and a vacuum evacuation process is performed in this state to obtain a high degree of vacuum possible.
【００２２】そして、真空加熱炉が２次加熱温度に維持
され所定時間経過後にはセラミック溶材のガスが完全に
排出されて膨れ上り現象が除去される。そして、このよ
うに熱化されてゲル化状態の純粋な成分のセラミック溶
材が配置口３４２と排気口３４１の間を結ぶ連結通路３
４３を通して配置口３４２から排気口３４１側に自然的
に流下し、図４のようにその排気口３４１をセラミック
溶材３２２で密封させるようになる。Then, the vacuum heating furnace is maintained at the secondary heating temperature, and after a lapse of a predetermined time, the gas of the ceramic molten material is completely discharged and the swelling phenomenon is removed. In this way, the connecting passage 3 which connects the placement port 342 and the exhaust port 341 with the ceramic molten material of the pure component which is thus heat-treated and gelled
It naturally flows down from the arrangement port 342 to the exhaust port 341 side through 43, and the exhaust port 341 is sealed with the ceramic melting material 322 as shown in FIG.
【００２３】図５及び図７は本発明のまた他の実施例で
あって、この実施例では上に説明したように、数段階の
真空加熱炉を通過した後、最終段階の真空炉で二重容器
真空間隔の真空排気をした後、排気口を密閉させる密封
方法に関するもので、図６は配置口４４３上に置かれた
セラミック溶材４２２が熱化される前の状態である。5 and 7 show another embodiment of the present invention. In this embodiment, as described above, after passing through several stages of vacuum heating furnace, the final stage vacuum furnace is used to The present invention relates to a sealing method in which the exhaust port is hermetically closed after the heavy container is evacuated at a vacuum interval. FIG. 6 shows a state before the ceramic molten material 422 placed on the placement port 443 is heated.
【００２４】このような状態で真空加熱炉が所定の１次
加熱温度に上昇されると、配置口４４２に置かれたセラ
ミック溶材４２２は溶融を開始する。この際、セラミッ
ク溶材４２２は同一平面上に排気口４４１と距離を置い
て傾斜した位置に備えられた配置口４４２上で熱化され
るが、その熱化された溶材４２２は排気口４４１上で一
定距離位置にあり、排気口を直接密封出来ないようにな
る。このような状態で真空加熱炉が蒸気圧以上に加熱さ
れると、溶材４２２からはガスが発生する。このような
状態で真空排気工程を遂行して可能な高い真空度を得る
ようになる。When the vacuum heating furnace is heated to a predetermined primary heating temperature in such a state, the ceramic molten material 422 placed in the arrangement port 442 starts melting. At this time, the ceramic molten material 422 is heated on the arrangement port 442 provided on the same plane at a position inclined with the exhaust port 441, and the heated molten material 422 is discharged on the exhaust port 441. It is located at a certain distance, so the exhaust port cannot be sealed directly. When the vacuum heating furnace is heated above the vapor pressure in such a state, gas is generated from the molten material 422. The vacuum evacuation process is performed in this state to obtain a high degree of vacuum possible.
【００２５】そして、真空加熱炉が２次加熱温度に維持
されて所定時間経過後には、セラミック溶材のガスが完
全に排出され膨れ上がり現象が除去される。そして、こ
のように熱化されたゲル化状態の純粋な成分のセラミッ
ク溶材が配置口４４２と排気口４４１の間を結ぶ連結通
路４４３を通して配置口４４２から排気口４４２側に自
然的に流れ下り、図７のように、その排気口４４１をセ
ラミック溶材４２２で密封させるようになる。Then, after the vacuum heating furnace is maintained at the secondary heating temperature for a predetermined time, the gas of the ceramic molten material is completely discharged and the phenomenon of swelling is removed. Then, the ceramic molten material of the gelled state that has been heated in this way naturally flows down from the arrangement port 442 to the exhaust port 442 side through the connection passage 443 connecting the arrangement port 442 and the exhaust port 441. As shown in FIG. 7, the exhaust port 441 is sealed with the ceramic melt 422.
【００２６】また、このように密封工程が完了された後
には硬化して製品二重容器の真空工程を終るようにな
る。Further, after the sealing process is completed, the product is cured to complete the vacuum process of the product double container.
【００２７】[0027]
【発明の効果】以上詳述したように、本発明は真空二重
容器の空間間隔の真空排気をより効果的に遂行して真空
度を高めるので、魔法瓶の断熱効果を優秀にし、保温性
は勿論のこと商品性を向上させる効果があるものであ
る。なお、本発明の実施例を説明したが、本発明はこれ
らに限定されるものでなく、特許請求範囲に記載された
範囲内で変更可能であること勿論である。As described above in detail, according to the present invention, the space between the vacuum double containers can be more effectively evacuated to increase the degree of vacuum. As a matter of course, it has the effect of improving the marketability. Although the embodiments of the present invention have been described, it goes without saying that the present invention is not limited to these and can be modified within the scope described in the claims.
【図１】本願が先出願したことのある真空密封構造でな
る真空魔法瓶の一部切欠側面図FIG. 1 is a partially cutaway side view of a vacuum thermos having a vacuum-sealed structure that the present application has previously filed.
【図２】図１の魔法瓶の密封構造を拡大して示した断面
図FIG. 2 is an enlarged sectional view showing the sealing structure of the thermos of FIG.
【図３】本発明一実施例の真空密封工程を示す断面説明
図FIG. 3 is an explanatory sectional view showing a vacuum sealing process according to an embodiment of the present invention.
【図４】同本発明一実施例の真空密封工程を示す断面説
明図FIG. 4 is an explanatory sectional view showing a vacuum sealing step of the embodiment of the present invention.
【図５】他の実施例の真空密封工程を示す平面説明図FIG. 5 is an explanatory plan view showing a vacuum sealing process of another embodiment.
【図６】同縦断説明図FIG. 6 is an explanatory view of the same vertical section
【図７】他の実施例の真空密封工程を示す平面説明図FIG. 7 is an explanatory plan view showing a vacuum sealing process of another embodiment.
１００ 二重容器 １１０ 内容器 １２０ 外容器 １３０ 空間間隙 ３４０ 底面 ３４１ 排気口 ３４２ 配置口 ３４３ 連結通路 ３２２ セラミック溶材 100 Double container 110 Inner container 120 Outer container 130 Space gap 340 Bottom surface 341 Exhaust port 342 Arrangement port 343 Connection passage 322 Ceramic melting material
Claims (4)
つ二重容器を形成し、この二重容器の適当な位置に、空
間間隔の真空排気ために具備される排気口を真空加熱炉
でセラミック溶材で密封してなる魔法瓶の真空密封方法
において、 上記内外容器の適当な位置に真空排気のための排気口と
距離を置いてその排気口位置より多少高い位置に配置口
を持つ二重容器を形成した後、その配置口に低温熱化の
セラミック溶材を配置し、この二重容器を真空加熱炉内
に配置して真空加熱炉の１次加熱温度で溶材の融化とガ
ス流出を遂行し配置口側に熱化流動させ、２次加熱温度
で二重容器の空間間隔を真空排気し、溶材を熱化流動さ
せ充分に安定させて排気口を密封することを特徴とする
魔法瓶の真空密封方法。1. A vacuum heating furnace in which metal inner and outer containers are joined to form a double container having a space interval, and an exhaust port provided for vacuum exhaust of the space interval is formed at an appropriate position of the double container. In a vacuum sealing method for a thermos that is sealed with a ceramic melt material, a double hole having a placement port at a position slightly higher than the exhaust port position with a distance from the exhaust port for vacuum exhaust at an appropriate position of the inner and outer containers After forming the container, a low temperature heatable ceramic molten material is placed in the placement port, and this double vessel is placed in a vacuum heating furnace to perform melting of the molten material and gas outflow at the primary heating temperature of the vacuum heating furnace. The vacuum of the thermos is characterized by heat-fluidizing to the placement port side and evacuating the space between the double containers at the secondary heating temperature to heat-fluidize the molten material to sufficiently stabilize it and seal the exhaust port. Sealing method.
同一の平面上に位置し、排気口より高い勾配を持つこと
を特徴とする魔法瓶の真空密封方法。2. The vacuum sealing method for a thermos bottle according to claim 1, wherein the arrangement port is located on the same plane as the exhaust port and has a gradient higher than that of the exhaust port.
つ二重容器を形成し、この二重容器の適当な位置に排気
口を具備してなる魔法瓶の真空密封構造において、 上記二重容器の適当な位置に排気口と距離を置いてその
排気口位置より多少上向いた位置に配置口を具備し、こ
の配置口と排気口の間を所定の勾配を持つ連結通路で連
結して構成することを特徴とする魔法瓶の真空密封構
造。3. A vacuum-sealing structure for a thermos, comprising a metallic double-sided container joined together to form a double container having a space between them, and an exhaust port provided at an appropriate position of the double container. The heavy container is provided with an arrangement port at a position spaced apart from the exhaust port and slightly above the exhaust port position, and the arrangement port and the exhaust port are connected by a connecting passage having a predetermined slope. Vacuum sealing structure for thermos, which is characterized by its construction.
距離を置いて同一平面上に設置し、排気口と配置口の間
に連結通路を設置し、上記配置口から排気口まで同一平
面上に所定の勾配を持って設置することを特徴とする魔
法瓶の真空密封構造。4. The arrangement port according to claim 3, wherein the disposing port is installed on the same plane with a distance from the exhaust port, and a connecting passage is installed between the exhaust port and the disposing port, and the disposing port to the exhaust port are the same. Vacuum sealing structure for thermos, which is installed on a flat surface with a certain gradient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14062096A JPH09289950A (en) | 1996-04-25 | 1996-04-25 | Vacuum sealing method and sealing structure for thermos bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14062096A JPH09289950A (en) | 1996-04-25 | 1996-04-25 | Vacuum sealing method and sealing structure for thermos bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09289950A true JPH09289950A (en) | 1997-11-11 |
Family
ID=15272949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14062096A Pending JPH09289950A (en) | 1996-04-25 | 1996-04-25 | Vacuum sealing method and sealing structure for thermos bottle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09289950A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015131039A (en) * | 2014-01-15 | 2015-07-23 | サーモス株式会社 | Metal vacuum heat insulation container |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07289449A (en) * | 1994-04-28 | 1995-11-07 | Tiger Vacuum Bottle Co Ltd | Vacuum enclosing structure of metallic vacuum heat retaining container |
-
1996
- 1996-04-25 JP JP14062096A patent/JPH09289950A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07289449A (en) * | 1994-04-28 | 1995-11-07 | Tiger Vacuum Bottle Co Ltd | Vacuum enclosing structure of metallic vacuum heat retaining container |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015131039A (en) * | 2014-01-15 | 2015-07-23 | サーモス株式会社 | Metal vacuum heat insulation container |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5826780A (en) | Vacuum insulation panel and method for manufacturing | |
| US4251252A (en) | Method for making vacuum insulated container | |
| EP0755646B1 (en) | Metallic evacuated double-walled vessel and production method therefor | |
| JP5301816B2 (en) | Heat resistant vacuum insulation | |
| JPH09289950A (en) | Vacuum sealing method and sealing structure for thermos bottle | |
| US5695844A (en) | Vacuum insulation panel with improved braze seal-off and method for manufacturing same | |
| JP2006017165A (en) | Manufacturing method for vacuum heat insulating material and heat insulator | |
| US7476426B2 (en) | Evacuated glass panel having degassing device | |
| KR970009037B1 (en) | Thermos jug | |
| JP2000150396A (en) | Thermal radiation reflector | |
| JP7269468B2 (en) | Vacuum insulation panel manufacturing method and vacuum insulation panel | |
| CN1675736B (en) | Production method for a gas discharge device | |
| JP2774748B2 (en) | Metal vacuum double container and method of manufacturing the same | |
| US11060342B2 (en) | Vacuum insulated glazing unit | |
| US3130293A (en) | Brazing furnace | |
| JPS61106120A (en) | Production of vacuum double container made of stainless steel | |
| KR960015948B1 (en) | Method and structure for shutting tightly of a vacuum container | |
| JP2004521543A (en) | Ceramic microwave window | |
| JPS6036766B2 (en) | How to manufacture metal thermos flasks | |
| JPH02215416A (en) | Manufacture of metallic thermos bottle | |
| JP2002324655A (en) | Manufacturing method of heating plate having sheath heater | |
| JPS63207033A (en) | Manufacturing equipment for character display tube | |
| JPH02305522A (en) | Manufacture of metal thermos of electric heating type | |
| WO2003043904A1 (en) | A getter packaging member used in a vacuum device, a method making the member, and the vacuum device | |
| JP2003322417A (en) | Method of manufacturing vacuum solar heat gathering device and its manufacturing device |