JP5099607B2 - Metal vacuum insulated container - Google Patents

Metal vacuum insulated container Download PDF

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JP5099607B2
JP5099607B2 JP2010079133A JP2010079133A JP5099607B2 JP 5099607 B2 JP5099607 B2 JP 5099607B2 JP 2010079133 A JP2010079133 A JP 2010079133A JP 2010079133 A JP2010079133 A JP 2010079133A JP 5099607 B2 JP5099607 B2 JP 5099607B2
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container
outer container
reduced diameter
bottom member
diameter cylindrical
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JP2011206408A (en
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悠 小林
育男 三浦
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Thermos KK
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Thermos KK
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Description

本発明は、携帯用魔法瓶、ポット、ジャーなどとして使用される金属製真空断熱容器に関するものである。 The present invention is a portable thermos, pot, it relates to a metal vacuum insulation container which is used as such a jar.

従来、金属製の内容器と外容器とをそれぞれ口部で接合一体化して二重壁構造の真空断熱容器において外容器の底部を覆うためのカバー部材を不要としたものとして、外容器の胴部に、内容器と外容器との間を真空排気した後に封止される真空排気孔を有する板状の底部材を外容器の胴部に連なる外装体として形成すると共に、外容器の胴部端部と底部材端部とにおいて外側に露出する側の端部の位置で、これら外容器の胴部と底部材とを接合したものが知られている。   Conventionally, the inner container and the outer container made of metal are joined and integrated at the mouth portions, and the cover member for covering the bottom of the outer container in the double-walled vacuum heat insulating container is made unnecessary. And forming a plate-like bottom member having an evacuation hole that is sealed after evacuating the space between the inner container and the outer container as an exterior body connected to the body of the outer container. In the end portion and the bottom member end portion, those obtained by joining the body portion of the outer container and the bottom member at the position of the end portion exposed to the outside are known.

そして、この従来技術においては、底部材の周縁側を上方に屈曲させて周縁立上げ部を形成し、この周縁立上げ部の上端部側を外容器の胴部の下端部側に嵌合させ接合しているものであって、周縁立上げ部の外面が、外筒胴部の円筒部とほぼ面一になるように、周縁立上げ部を外筒胴部の縮径筒部に外嵌させることにより外観性が向上し、また丸洗い時に指先の引っ掛かり等が生じないので丸洗い性を向上できることに加え、水浸入による腐食の心配がなくなる、というものである。   And in this prior art, the peripheral edge side of the bottom member is bent upward to form the peripheral edge rising part, and the upper end part side of the peripheral edge rising part is fitted to the lower end part side of the body part of the outer container. The peripheral rising part is fitted on the reduced diameter cylindrical part of the outer cylinder body so that the outer surface of the peripheral rising part is substantially flush with the cylindrical part of the outer cylinder body. By doing so, the appearance is improved and the fingertips are not caught during the round washing, so that the round washing performance can be improved and there is no fear of corrosion due to water intrusion.

特開２０００−３１６７２９号公報JP 2000-316729 A

一般に、内容器外面には真空断熱容器としての断熱性能を向上させるために、輻射防止対策として輻射率の小さい金属によるめっきや箔が巻き付けられている。したがって、この種の二重構造の真空断熱容器の製造工程にあっては、金属めっきや箔の巻き付けは、内容器と外容器の胴部間隔が狭いことから内容器単体で予め行われたうえで、内容器を外容器本体の底部開口より挿入して、内容器の口部と外容器本体の口部とを接合した後に、外容器本体の底部開口に底部材を外嵌し、そして接合がなされて、内容器、外容器本体、底部材が一体化され、この真空排気孔より内容器、外容器の間を真空排気し、そして真空排気孔をろう材などで封止するものである。   Generally, in order to improve the heat insulation performance as a vacuum heat insulation container, plating or foil with a metal having a low emissivity is wound around the outer surface of the inner container. Therefore, in the manufacturing process of this type of double-structured vacuum insulation container, metal plating and foil wrapping are performed in advance by the inner container alone because the gap between the inner container and the outer container is narrow. Then, after inserting the inner container from the bottom opening of the outer container body and joining the mouth part of the inner container and the mouth part of the outer container body, the bottom member is externally fitted to the bottom opening of the outer container body and joined. The inner container, the outer container main body, and the bottom member are integrated, the space between the inner container and the outer container is evacuated from the vacuum exhaust hole, and the vacuum exhaust hole is sealed with a brazing material or the like. .

しかし、外容器本体の端部には外容器本体の直径を小さくする向きに段部を介して縮径筒部が形成されているため、金属めっきや箔が巻き付けられた内容器を外容器本体の底部開口より挿入して嵌合する際に、外容器本体の端部で内容器の外面に設けられている金属めっきや箔を引っ掛けて傷つけてしまうおそれがあり、ひいてはこの傷により断熱性能が低下してしまう問題がある。   However, since the end of the outer container body is formed with a reduced-diameter cylindrical portion through a step in the direction of reducing the diameter of the outer container body, the inner container wrapped with metal plating or foil is used as the outer container body. When inserting and fitting from the bottom opening of the outer container body, there is a risk of being damaged by catching metal plating or foil provided on the outer surface of the inner container at the end of the outer container body, and this scratches will insulate the heat insulation performance. There is a problem that decreases.

このことから、内容器の金属めっきや箔を傷つけないように外容器本体の底部開口の直径、ひいては外容器の直径も大きくする必要があるため、真空断熱容器をコンパクトにすることに限界があった。   Therefore, it is necessary to increase the diameter of the bottom opening of the outer container main body and the outer container so as not to damage the metal plating and foil of the inner container. It was.

解決しようとする問題点は、外容器の胴部に、底部材を外容器の胴部に連なって形成し、外容器の胴部の端部と、底部材の周縁に胴部の端部側に対向するように立上げた周縁立上げ部とを接合した金属製真空断熱容器において、外容器本体の胴部の端部に内容器を挿入する際に、両者間が接触し難い隙間を確保できるようにする点である。 The problem to be solved is that the bottom member is formed continuously with the body of the outer container on the body of the outer container, and the end of the body is on the end of the body of the outer container and on the periphery of the bottom member. In a metal vacuum insulation container that is joined to the peripheral edge riser that is raised so as to oppose to the body, when inserting the inner container into the end of the body part of the outer container body, a gap that is difficult to contact between both is secured. It is a point to be able to do .

請求項１の発明は、内容器と外容器との間を真空にした二重壁構造を有し、底部材を前記外容器の本体の胴部に連なって形成すると共に、前記底部材の周縁に前記胴部の端部側に対向する周縁立上げ部を設け、該周縁立上げ部を前記胴部の端部側に接合した金属製真空断熱容器において、前記周縁立上げ部の端部側に、第一の段部を介して連設する第一の縮径円筒部と、この第一の縮径円筒部の先端に第二の段部を介して連設する第二の縮径円筒部とを形成すると共に、前記第一の縮径円筒部の外周直径は、前記胴部の内周直径とほぼ同じに形成され、さらに前記第一の縮径円筒部の外周直径より前記第二の縮径円筒部の外周直径は小さく形成され、前記第一の段部に前記胴部の端部が係止し、かつ前記端部と前記第一の段部との間を溶接による接合部により一体化することを特徴とする金属製真空断熱容器である。 The invention of claim 1 has a double wall structure in which the space between the inner container and the outer container is evacuated, the bottom member is formed continuously to the body portion of the main body of the outer container, and the periphery of the bottom member A metal vacuum heat insulating container having a peripheral edge rising portion opposed to an end portion side of the body portion, and joining the peripheral edge rising portion to an end portion side of the body portion; to a second diameter that continuously provided through the second stepped portion and the first reduced diameter circular tube portion, in the first tip of the reduced diameter cylindrical portion which continuously arranged via the first stepped portion And the outer diameter of the first reduced diameter cylindrical portion is substantially the same as the inner diameter of the body portion, and the outer diameter of the first reduced diameter cylindrical portion is greater than the outer diameter of the first reduced diameter cylindrical portion. diameter of the outer circumference of the second reduced diameter cylindrical portion is smaller, and end locking of the barrel to the first stepped portion, and the welding between the end portion and the first step portion A metallic vacuum insulating container, which comprises integrated by that joint.

請求項１の発明によれば、底部材の縮径筒部に外容器本体における胴部の端部側を外嵌して封止することで、外容器本体における胴部の端部側に底部材を外嵌するものに比較して、胴部の端部の開口を可及的に大きくでき、外面を傷つけることなく、内容器を外容器本体の端部側より挿入して設けることができる。   According to the first aspect of the present invention, the bottom of the body portion of the outer container body is sealed by fitting and sealing the end portion side of the body portion of the outer container body to the reduced diameter cylindrical portion of the bottom member. The opening of the end of the body can be made as large as possible compared to the one that externally fits the material, and the inner container can be inserted and provided from the end of the outer container main body without damaging the outer surface. .

請求項１の発明によれば、前記段部に前記胴部の端部が係止することで、底部材の外容器本体に対する位置決め等を正確に行うことができる。 According to the first aspect of the present invention, the end portion of the body portion is locked to the stepped portion, so that the bottom member can be accurately positioned with respect to the outer container main body.

本発明の実施例１を示す断面図である。It is sectional drawing which shows Example 1 of this invention. 同第一工程の断面図である。It is sectional drawing of the same 1st process. 同第二工程の断面図である。It is sectional drawing of the 2nd process. 同第三工程の断面図である。 It is sectional drawing of the 3rd process .

本発明における好適な実施の形態について、添付図面を参照して説明する。尚、以下に説明する実施の形態は、特許請求の範囲に記載された本発明の内容を限定するものではない。また、以下に説明される構成の全てが、本発明の必須要件であるとは限らない。   Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

図１〜４は実施例１を示しており、図１に示すように金属製真空断熱容器は、それぞれステンレス鋼板を用いて作製された内容器１及び該内容器１の外側を覆うように配置される外容器２から成る。内容器１は、上端の内筒口部３の下端に末広がり状に傾斜した肩部４を介して下方に延びる直管状の胴部５を連設した形状に形成された内容器本体６と、胴部５の下端開口を閉塞するように接合する底部材７とからなり、この内容器１の外側表面に金属めっき８や箔が設けられている。そして、内容器１と外容器２との間に真空断熱層９が形成されており、また内容器１の内部にお茶や飲料水等の液体の貯留空間10が形成されていると共に、内筒口部３には栓（図示せず）が設けられるようになっている。   1 to 4 show Example 1, and as shown in FIG. 1, the metal vacuum insulation containers are arranged so as to cover the inner container 1 made of stainless steel plate and the outer side of the inner container 1, respectively. The outer container 2 is made up of. The inner container 1 includes an inner container body 6 formed in a shape in which a straight tubular body 5 extending downward is connected to a lower end of an upper end of the inner tube opening 3 via a shoulder 4 inclined in a divergent shape, The bottom member 7 is joined so as to close the lower end opening of the portion 5, and the outer surface of the inner container 1 is provided with metal plating 8 and foil. A vacuum heat insulating layer 9 is formed between the inner container 1 and the outer container 2, and a storage space 10 for liquid such as tea or drinking water is formed inside the inner container 1. The part 3 is provided with a stopper (not shown).

前記外容器２は、内容器１と中心軸線11と同軸状に配置され上端の外筒口部12の下端に末広がり状に傾斜した肩部13を介して下方に延びる直管状の胴部14を連設した形状に形成された外容器本体15と、胴部14の下端開口を閉塞するように接合する板状の底部材16とからなる。   The outer container 2 is arranged coaxially with the inner container 1 and the central axis 11 and is connected to a lower end of the outer cylindrical mouth part 12 at the upper end through a straight tubular body part 14 extending downward via a shoulder part 13 inclined in a divergent shape. The outer container main body 15 formed in the provided shape and the plate-like bottom member 16 joined so as to close the lower end opening of the trunk portion 14 are formed.

前記直管状の胴部14は中心軸線11と同軸で同一直径を有するであって、その外周直径をＡ、内周直径をＢで示しており、内周直径Ｂよりも胴部５の外周直径Ｃは小さく形成されている（Ａ＞Ｂ＞Ｃ）。   The straight tubular body 14 is coaxial with the central axis 11 and has the same diameter, and its outer diameter is A and its inner diameter is B. The outer diameter of the body 5 is larger than the inner diameter B. C is formed small (A> B> C).

外容器２の底部材16は、金属製真空断熱容器の外装を形成するもので中心軸線11を中心とした円板17と、この円板17の周縁より胴部14の下端開口にある外容器本体15の端部18、すなわち胴部14の端部18側に対向するように立上がる短円筒状の周縁立上げ部19を有するもので、周縁立上げ部19は、円板17側に直結し該円板17と同径の短円筒部20と、この短円筒部20の先端に第一の段部21を介して連設する第一の縮径円筒部22と、この第一の縮径円筒部22の先端に第二の段部23を介して連設する第二の縮径円筒部24とを形成している。そして、底部材16の最大直径となる短円筒部20の外周直径Ｄは、胴部14の外周直径Ａとほぼ同じに形成され（Ｄ≒Ａ）、第一の縮径円筒部22の外周直径Ｅは、胴部14の内周直径Ｂとほぼ同じに形成され（Ｅ≒Ｂ）、さらに第二の縮径円筒部24の外周直径Ｆは、第一の縮径円筒部22の外周直径Ｅより小さく形成されている。さらに第二の縮径円筒部24の内周直径Ｇは胴部５の外周直径Ｃよりも大きく形成されている（Ｃ＜Ｇ＜Ｆ＜Ｅ＜Ｄ）。   The bottom member 16 of the outer container 2 forms an exterior of a metal vacuum insulation container, and is a disc 17 centered on the central axis 11 and an outer container located at the lower end opening of the body portion 14 from the periphery of the disc 17. It has a short cylindrical peripheral rising part 19 that rises so as to face the end 18 of the main body 15, that is, the end 18 side of the body part 14, and the peripheral rising part 19 is directly connected to the disc 17 side. A short cylindrical portion 20 having the same diameter as the circular plate 17, a first reduced diameter cylindrical portion 22 connected to the tip of the short cylindrical portion 20 via a first step portion 21, and the first reduced diameter portion A second reduced diameter cylindrical portion 24 is formed at the tip of the diameter cylindrical portion 22 so as to be connected via a second step portion 23. The outer peripheral diameter D of the short cylindrical portion 20 that is the maximum diameter of the bottom member 16 is formed to be substantially the same as the outer peripheral diameter A of the trunk portion 14 (D≈A), and the outer peripheral diameter of the first reduced diameter cylindrical portion 22 is formed. E is formed to be substantially the same as the inner peripheral diameter B of the body portion 14 (E≈B), and the outer peripheral diameter F of the second reduced diameter cylindrical portion 24 is the outer peripheral diameter E of the first reduced diameter cylindrical portion 22. It is formed smaller. Further, the inner peripheral diameter G of the second reduced diameter cylindrical portion 24 is formed larger than the outer peripheral diameter C of the body portion 5 (C <G <F <E <D).

また、円板17のほぼ中心軸線11上に真空排気用孔25が形成されていると共に、この真空排気用孔25はろう材26で封止されている。尚、符号28は外容器本体15の端部18と第一の段部21との間を溶接して封止する接合部である。   Further, an evacuation hole 25 is formed substantially on the central axis 11 of the disc 17 and the evacuation hole 25 is sealed with a brazing material 26. Reference numeral 28 denotes a joint portion that welds and seals between the end portion 18 of the outer container body 15 and the first step portion 21.

次に金属製真空断熱容器の製造方法を図２〜図４を参照して説明する。図２の第一工程で示すように、内容器１は予め内容器本体６と底部材７が一体に接続されていると共に、その表面に金属めっき８や箔が設けられている。そして、内容器１と外容器本体15を中心軸線11上に配置し内筒口部３を先頭にして外筒口部12に向けて内容器１を外容器本体15の端部18の下端開口より胴部14に挿入して、外筒口部12に内筒口部３を嵌合する。この挿入の際、内容器１の胴部５などの外側表面に設けられた金属めっき８や箔を損傷しないように、外容器本体15の端部18に内容器１が接触しないようにする。   Next, the manufacturing method of a metal vacuum heat insulation container is demonstrated with reference to FIGS. As shown in the first step of FIG. 2, the inner container 1 is preliminarily connected with the inner container body 6 and the bottom member 7, and the surface thereof is provided with metal plating 8 and foil. Then, the inner container 1 and the outer container main body 15 are arranged on the central axis 11 and the inner container 1 is placed from the lower end opening of the end portion 18 of the outer container main body 15 toward the outer cylinder mouth portion 12 with the inner cylinder mouth portion 3 at the head. The inner tube port 3 is fitted into the outer tube port 12 by being inserted into the part 14. At the time of this insertion, the inner container 1 is prevented from contacting the end 18 of the outer container body 15 so as not to damage the metal plating 8 or the foil provided on the outer surface such as the body 5 of the inner container 1.

次に図３の第二工程で示すように、嵌合した外筒口部12と内筒口部３とを溶接して封止すると共に、外容器本体15の端部18に底部材16を装着する。この装着は底部材16を外容器本体15と中心軸線11上に配置し、そして周縁立上げ部19を外容器本体15の端部18に対向した状態で、外容器本体15の端部18側を周縁立上げ部19に外嵌する。この外嵌は、まず第二の縮径円筒部24を外容器本体15の端部18内に遊挿し、さらに底部材16を外容器本体15に挿入することで、第一の縮径円筒部22に外容器本体15の端部18を外嵌すると共に、外容器本体15の端部18を第一の段部21に係止して位置決めする。そして、外容器本体15の端部18と第一の段部21との間を外側より溶接して接合部28により封止する。   Next, as shown in the second step of FIG. 3, the fitted outer tube port 12 and the inner tube port 3 are welded and sealed, and the bottom member 16 is attached to the end 18 of the outer container body 15. . In this mounting, the bottom member 16 is disposed on the outer container body 15 and the central axis 11, and the peripheral edge rising portion 19 faces the end 18 of the outer container body 15, and the end 18 side of the outer container body 15 is attached. Is externally fitted to the peripheral rising portion 19. This outer fitting is performed by first inserting the second reduced diameter cylindrical portion 24 into the end portion 18 of the outer container body 15 and further inserting the bottom member 16 into the outer container body 15 to thereby form the first reduced diameter cylindrical portion. The end 18 of the outer container body 15 is externally fitted to 22, and the end 18 of the outer container body 15 is locked to the first step portion 21 for positioning. Then, the end portion 18 of the outer container body 15 and the first step portion 21 are welded from the outside and sealed by the joint portion 28.

次に図４の第三工程で示すように、真空排気用孔25を上向きにして一体化された内容器１、外容器２を真空加熱炉29に収納すると共に、真空排気用孔25の上方にろう材26を配置する。そして、真空排気用孔25を介して内容器１、外容器２間を真空排気すると共に加熱することで、ろう材26が溶融して真空排気用孔25が封止されて内容器１、外容器２間を真空に維持する。この後、一体化された内容器１、外容器２間を真空とした真空断熱容器を真空加熱炉29より取り出すものである。   Next, as shown in the third step of FIG. 4, the inner container 1 and the outer container 2 which are integrated with the vacuum exhaust hole 25 facing upward are accommodated in the vacuum heating furnace 29, and above the vacuum exhaust hole 25. The brazing material 26 is arranged. Then, between the inner container 1 and the outer container 2 is evacuated and heated through the evacuation hole 25, the brazing material 26 is melted and the evacuation hole 25 is sealed, and the inner container 1, A vacuum is maintained between the containers 2. Thereafter, the vacuum heat insulating container in which the space between the integrated inner container 1 and outer container 2 is evacuated is taken out from the vacuum heating furnace 29.

したがって、内筒口部３より貯留空間10に入れたお茶や飲料水等の液体が断熱状態で収容される。   Therefore, liquids such as tea and drinking water put into the storage space 10 from the inner cylinder port 3 are accommodated in a heat-insulated state.

以上のように、前記実施例では内容器１と外容器２との間を真空にした二重壁構造を有し、底部材16を外容器本体15の胴部14に連なって形成すると共に、底部材16の周縁に胴部14の端部18側に対向する周縁立上げ部19を設け、この周縁立上げ部19を胴部14の端部18側に接合し、周縁立上げ部19の端部18側には第一の縮径円筒部22を形成すると共に、この第一の縮径円筒部22に胴部14の端部18側を外嵌して溶接により封止する。これにより底部材16を外容器２に接合しているため外容器本体15と底部材16の間に例えば水が浸入することがなく、隙間腐食に対する耐食性が向上する。また、従来、圧入嵌合していただけの底カバーが底部材16として接合されているので外れることがない。また、外容器本体15の端部18には外容器２の直径を小さくする向きに段部が形成されていないため、外容器２の内周直径Ｂを小さくしても内容器１の外面に施された金属めっき８や箔を傷つけることなく、内容器１と外容器２を嵌合することができ、断熱性能の低下のおそれをなくすことができる。   As described above, the embodiment has a double wall structure in which the space between the inner container 1 and the outer container 2 is evacuated, and the bottom member 16 is formed continuously to the body portion 14 of the outer container body 15, A peripheral edge rising portion 19 is provided on the peripheral edge of the bottom member 16 so as to face the end portion 18 side of the trunk portion 14, and the peripheral edge rising portion 19 is joined to the end portion 18 side of the trunk portion 14 so that the peripheral edge rising portion 19 A first reduced diameter cylindrical portion 22 is formed on the end portion 18 side, and the end portion 18 side of the body portion 14 is fitted on the first reduced diameter cylindrical portion 22 and sealed by welding. Thereby, since the bottom member 16 is joined to the outer container 2, for example, water does not enter between the outer container main body 15 and the bottom member 16, and the corrosion resistance against crevice corrosion is improved. Further, conventionally, since the bottom cover that has only been press-fitted and fitted is joined as the bottom member 16, it does not come off. Further, since the end portion 18 of the outer container body 15 is not formed with a stepped portion so as to reduce the diameter of the outer container 2, even if the inner peripheral diameter B of the outer container 2 is decreased, the outer container 2 is formed on the outer surface of the inner container 1. The inner container 1 and the outer container 2 can be fitted to each other without damaging the applied metal plating 8 or foil, and the risk of a decrease in heat insulation performance can be eliminated.

さらに、前記実施例では周縁立上げ部19の端部18側に第一の段部21を介して第一の縮径円筒部22を形成すると共に、第一の段部21に胴部14の端部18が係止することにより、底部材16の押し込みすぎや押込み不足を防ぎ、外容器２と底部材16を安定して嵌合させ、生産効率を向上させることができる。また、第一の段部21により、該底部材16の強度、ひいては真空断熱容器の耐衝撃性が向上する。   Further, in the above-described embodiment, the first reduced diameter cylindrical portion 22 is formed on the end portion 18 side of the peripheral rising portion 19 via the first step portion 21, and the barrel portion 14 is formed on the first step portion 21. When the end portion 18 is locked, it is possible to prevent the bottom member 16 from being pushed too much or insufficiently, and to stably fit the outer container 2 and the bottom member 16 to improve the production efficiency. Further, the first step portion 21 improves the strength of the bottom member 16, and consequently the impact resistance of the vacuum heat insulating container.

さらに、周縁立上げ部19の最大径である直径Ｄが外容器２の胴部14の直径Ａと略同一である部材で構成されたことにより、内容器１の直径Ｃに外容器２の直径Ａを近づけたコンパクトな真空断熱容器を製造することができる。また、底部材16の最大径Ｄと胴部14の端部18の直径Ａが略同一であるため両部材の境界に段差がなく、かつ両部材が接合されているため、両部材の境界に汚れがたまりにくく手入れがしやすい。また金属の切断面が露出していないため、手に持ったときに指や爪が金属切断面に引っかからず痛みや不快を感ずることがなくなる。   Furthermore, since the diameter D, which is the maximum diameter of the peripheral rising portion 19, is made of a member that is substantially the same as the diameter A of the body 14 of the outer container 2, the diameter C of the outer container 2 is increased to the diameter C of the inner container 1. A compact vacuum insulation container having A close to it can be manufactured. In addition, since the maximum diameter D of the bottom member 16 and the diameter A of the end portion 18 of the body portion 14 are substantially the same, there is no step at the boundary between the two members, and both the members are joined together. Dirt does not accumulate and is easy to clean. In addition, since the metal cut surface is not exposed, fingers and nails are not caught on the metal cut surface when held in the hand, so that no pain or discomfort is felt.

しかも、底部材16に封止された真空排気用孔25が穿設された部材で構成されたことにより、底部材16を外容器２と接合して外装体として用いることができ、底部材16を覆う底カバーが不要になるので部品点数が少なくなり安価に製造することができる。   In addition, since the vacuum exhaust hole 25 sealed in the bottom member 16 is formed, the bottom member 16 can be joined to the outer container 2 and used as an exterior body. Since the bottom cover for covering is not required, the number of parts is reduced, and it can be manufactured at low cost.

さらに、実施例１の底部材では短円筒部20に第一の縮径円筒部22が連設され、さらにこの第一の縮径円筒部22に第二の縮径円筒部24が連設されて、製造時においては第二の縮径円筒部24を外容器本体15の端部18側の開口に遊挿して仮に挿入し、さらに底部材16を外容器本体15に挿入することで、第一の縮径円筒部22に外容器本体15の端部18を簡単に外嵌することができる。   Further, in the bottom member of the first embodiment, the first reduced diameter cylindrical portion 22 is connected to the short cylindrical portion 20, and the second reduced diameter cylindrical portion 24 is connected to the first reduced diameter cylindrical portion 22. At the time of manufacture, the second reduced diameter cylindrical portion 24 is loosely inserted into the opening on the end 18 side of the outer container body 15 and temporarily inserted, and the bottom member 16 is further inserted into the outer container body 15 to The end portion 18 of the outer container main body 15 can be easily fitted on one reduced diameter cylindrical portion 22.

また、直管状に形成された外容器本体15の胴部14の端部18に内筒口部３を先頭にして内容器１を外容器本体15に中心軸線11をほぼ一致させて挿入し、外容器本体15の外筒口部12に嵌合させた後、周縁立上げ部19の端部18側に形成された第一の縮径円筒部22に、胴部14の端部18側を外嵌することで、外容器本体15の端部18が縮径されることなく全面的に開口されて、表面が端部18に接触するおそれを低くして内容器１を外容器本体15に挿入して組立てすることができる。 In addition, the inner container 1 is inserted into the outer container body 15 with the central axis 11 substantially aligned at the end 18 of the body portion 14 of the outer container body 15 formed in a straight tube shape with the inner tube port 3 at the head, After fitting into the outer cylinder mouth portion 12 of the container body 15, the end portion 18 side of the body portion 14 is externally fitted to the first reduced diameter cylindrical portion 22 formed on the end portion 18 side of the peripheral edge rising portion 19. As a result, the end 18 of the outer container main body 15 is fully opened without being reduced in diameter, and the inner container 1 is inserted into the outer container main body 15 with a low risk of the surface contacting the end 18. Can be assembled .

以上のように本発明に係る金属製真空断熱容器は、各種の用途に適用できる。   As described above, the metal vacuum insulated container according to the present invention can be applied to various uses.

１ 内容器
２ 外容器
14 胴部
16 底部材
18 端部
19 周縁立上げ部
21 第一の段部
22 第一の縮径円筒部
23 第二の段部
24 第二の縮径円筒部
Ｂ 胴部14の内周直径
Ｅ 第一の縮径円筒部22の外周直径
Ｆ 第二の縮径円筒部24の外周直径 1 Inner container 2 Outer container
14 Torso
16 Bottom member
18 edge
19 Edge riser
21 First step
22 First reduced diameter cylindrical section
23 Second step
24 Second reduced diameter cylindrical section
B Inner diameter of trunk 14
E Outer diameter of the first reduced diameter cylindrical part 22
F Outer diameter of second reduced diameter cylindrical portion 24

Claims (1)

内容器と外容器との間を真空にした二重壁構造を有し、底部材を前記外容器の本体の胴部に連なって形成すると共に、前記底部材の周縁に前記胴部の端部側に対向する周縁立上げ部を設け、該周縁立上げ部を前記胴部の端部側に接合した金属製真空断熱容器において、前記周縁立上げ部の端部側に、第一の段部を介して連設する第一の縮径円筒部と、この第一の縮径円筒部の先端に第二の段部を介して連設する第二の縮径円筒部とを形成すると共に、前記第一の縮径円筒部の外周直径は、前記胴部の内周直径とほぼ同じに形成され、さらに前記第一の縮径円筒部の外周直径より前記第二の縮径円筒部の外周直径は小さく形成され、前記第一の段部に前記胴部の端部が係止し、かつ前記端部と前記第一の段部との間を溶接による接合部により一体化することを特徴とする金属製真空断熱容器。
It has a double-wall structure in which the space between the inner container and the outer container is evacuated, and the bottom member is formed continuously to the body portion of the main body of the outer container, and the end portion of the body portion on the periphery of the bottom member A metal vacuum heat insulating container having a peripheral edge rising portion facing the side and joining the peripheral edge rising part to the end portion side of the body portion , the first step portion on the end side of the peripheral edge rising portion; a first reduced diameter circular tube portion which continuously arranged via, and forming a second reduced diameter cylindrical portion which continuously arranged via the second step portion to the first tip of the reduced diameter cylindrical portion The outer diameter of the first reduced diameter cylindrical portion is formed to be substantially the same as the inner diameter of the body portion, and the outer diameter of the second reduced diameter cylindrical portion is greater than the outer diameter of the first reduced diameter cylindrical portion. outer peripheral diameter is smaller, wherein the body portion end to the engagement of the first stepped portion and the joined portion by welding between the end portion and the first step part one Metal vacuum insulated container, characterized in that the reduction.
JP2010079133A 2010-03-30 2010-03-30 Metal vacuum insulated container Expired - Fee Related JP5099607B2 (en)

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