JPH1076336A - Vacuum double structure and method for coating foilonouter surface of inner cylinder part - Google Patents
Vacuum double structure and method for coating foilonouter surface of inner cylinder partInfo
- Publication number
- JPH1076336A JPH1076336A JP8252458A JP25245896A JPH1076336A JP H1076336 A JPH1076336 A JP H1076336A JP 8252458 A JP8252458 A JP 8252458A JP 25245896 A JP25245896 A JP 25245896A JP H1076336 A JPH1076336 A JP H1076336A
- Authority
- JP
- Japan
- Prior art keywords
- foil
- cylindrical portion
- inner cylinder
- inner cylindrical
- double structure
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 19
- 239000011248 coating agent Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 31
- 239000011888 foil Substances 0.000 claims abstract description 123
- 238000003466 welding Methods 0.000 claims abstract description 63
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 239000011889 copper foil Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 11
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Thermally Insulated Containers For Foods (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、真空二重構造体及
び内筒部外面箔被覆方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum double structure and a method for coating an outer foil on an inner cylinder.
【0002】[0002]
【従来の技術】従来、外筒部とその外筒部内に収納され
る内筒部との間に真空の空隙部を形成してなる真空二重
構造体に於て、断熱性能を向上させるために、各種の改
良がなされてきた。その方法としては、例えば、内筒部
の外面に銀又は銅メッキを施す方法、内筒部と外筒部と
の間にステンレスの反射板を挿入する方法、内筒部と外
筒部との間に、グラスウールとアルミニウムの箔とを交
互に数層に巻いて充填するスーパーインシュレーショ
ン、あるいは、内筒部の外面に金属製の箔を巻き付けて
包む方法等が公知であった。2. Description of the Related Art Conventionally, in a vacuum double structure in which a vacuum space is formed between an outer cylindrical portion and an inner cylindrical portion housed in the outer cylindrical portion, in order to improve heat insulation performance. In addition, various improvements have been made. As the method, for example, a method of applying silver or copper plating to the outer surface of the inner cylinder part, a method of inserting a stainless steel reflector between the inner cylinder part and the outer cylinder part, and a method of interposing the inner cylinder part and the outer cylinder part In the meantime, there has been known a method of super-insulation in which glass wool and aluminum foil are alternately wound in several layers and filled, or a method of winding and wrapping a metal foil around the outer surface of the inner cylinder.
【0003】[0003]
【発明が解決しようとする課題】しかし、上述の銀又は
銅メッキを施す方法は、生産性に劣り、コスト高となる
欠点があった。また、ステンレスの反射板を設ける方法
では、熱の輻射率がアルミニウムや銅より大きいので断
熱性があまり向上しなかった。また、スーパーインシュ
レーションによる方法は、極めて高価である上、製品が
重くなるという欠点があった。However, the above-described silver or copper plating method has disadvantages in that the productivity is poor and the cost is high. In addition, in the method of providing a stainless steel reflection plate, the heat emissivity is higher than that of aluminum or copper, so that the heat insulating property is not significantly improved. In addition, the method using super insulation is extremely expensive and has the drawback that the product becomes heavy.
【0004】また、内筒部の外面に金属製の箔を巻き付
けて包む方法では、生産中に於て外筒部の外面の研磨時
や、使用中に振動が加わった時等に、箔の巻き崩れが起
こり、その箔が外筒部内面に接触して断熱性が低下した
り、箔のガタツキにより異音が発生する等の問題があっ
た。かつ、内筒部の外周面に 400°〜 540°にわたって
箔を巻き付ける必要があり、箔の必要量が比較的多いと
いう問題があった。[0004] In the method of wrapping a metal foil around the outer surface of the inner cylindrical portion, the foil may be polished when the outer surface of the outer cylindrical portion is polished during production or when vibration is applied during use. There was a problem that the winding collapsed and the foil came into contact with the inner surface of the outer cylindrical portion, thereby deteriorating the heat insulating property and generating an unusual noise due to rattling of the foil. Moreover, it is necessary to wind the foil over the outer peripheral surface of the inner cylindrical portion over 400 ° to 540 °, and there is a problem that the required amount of the foil is relatively large.
【0005】そこで、本発明は、上述の問題を解決し
て、断熱性に優れると共に、生産性が向上し、かつ、製
造コストを低くすることができる真空二重構造体を提供
することを目的とする。Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a vacuum double structure which is excellent in heat insulation, can improve productivity, and can reduce manufacturing cost. And
【0006】また、本発明は、断熱性に優れると共に、
生産性が向上し、かつ、製造コストを低くすることがで
きる真空二重構造体を実現できる内筒部外面箔被覆方法
を提供することを目的とする。Further, the present invention has excellent heat insulating properties,
It is an object of the present invention to provide a method for coating an inner cylinder portion outer surface foil that can realize a vacuum double structure that can improve productivity and reduce manufacturing costs.
【0007】[0007]
【課題を解決するための手段】上述の目的を達成するた
めに本発明に係る真空二重構造体は、外筒部と該外筒部
内に収納される内筒部との間に真空の空隙部を形成して
なる真空二重構造体に於て、上記内筒部の外面をアルミ
ニウム又は銅の箔にて覆うと共に、その箔の所定部位を
抵抗溶接にて内筒部に固着したものである。In order to achieve the above object, a vacuum double structure according to the present invention comprises a vacuum gap between an outer cylinder and an inner cylinder housed in the outer cylinder. The outer surface of the inner cylindrical portion is covered with aluminum or copper foil, and a predetermined portion of the foil is fixed to the inner cylindrical portion by resistance welding. is there.
【0008】なお、抵抗溶接にて固着した溶着部とその
近傍を除く大半面積部位に於て、内筒部とそれを覆う箔
との間に隙間が形成されているのが望ましい。また、外
筒部と内筒部が、口部のみで相互に接合されているも好
ましい。さらに、箔の一端縁部と他端縁部を重ね合わせ
て重ね代を形成し、その重ね代が、抵抗溶接にて内筒部
に固着されているのが好ましい。また、箔の一端縁部と
他端縁部とが、微小間隔をもって分離状として、夫々、
抵抗溶接にて内筒部に固着されているも望ましい。It is desirable that a gap is formed between the inner cylindrical portion and the foil covering the inner cylindrical portion at most of the area except the welded portion fixed by resistance welding and the vicinity thereof. It is also preferable that the outer cylinder and the inner cylinder are joined to each other only at the mouth. Further, it is preferable that one edge and the other edge of the foil are overlapped to form an overlap margin, and the overlap margin is fixed to the inner cylindrical portion by resistance welding. In addition, one end edge and the other end edge of the foil are separated from each other with a minute interval,
It is also desirable to be fixed to the inner cylinder by resistance welding.
【0009】また、本発明に係る内筒部外面箔被覆方法
は、外筒部と該外筒部内に収納される内筒部との間に真
空の空隙部を形成してなる真空二重構造体における内筒
部の外面にアルミニウム又は銅の箔を被覆する方法であ
って、該箔の一端縁部を上記内筒部の外面に抵抗溶接に
て固着し、その箔を上記内筒部の外面に略1周巻設し、
さらに、その箔の他端縁部を、抵抗溶接にて上記内筒部
に固着するものである。Further, the method for coating the outer surface foil of the inner cylinder portion according to the present invention provides a vacuum double structure in which a vacuum gap is formed between the outer cylinder portion and the inner cylinder portion housed in the outer cylinder portion. A method of coating an outer surface of an inner cylindrical portion of a body with aluminum or copper foil, wherein one end of the foil is fixed to an outer surface of the inner cylindrical portion by resistance welding, and the foil is coated with the inner cylindrical portion. It is wound around the outer surface one round,
Further, the other end of the foil is fixed to the inner cylinder by resistance welding.
【0010】また、外筒部と該外筒部内に収納される内
筒部との間に真空の空隙部を形成してなる真空二重構造
体における内筒部の外面にアルミニウム又は銅の箔を被
覆する方法であって、該箔を上記内筒部の外面に略1周
巻設し、次に、その箔の一端縁部と他端縁部を、上記内
筒部に抵抗溶接にて固着するものである。An aluminum or copper foil is formed on the outer surface of the inner cylindrical portion of the vacuum double structure having a vacuum space formed between the outer cylindrical portion and the inner cylindrical portion housed in the outer cylindrical portion. Wherein the foil is wound substantially one round around the outer surface of the inner cylinder, and then one end and the other end of the foil are resistance-welded to the inner cylinder. It sticks.
【0011】また、外筒部と該外筒部内に収納される内
筒部との間に真空の空隙部を形成してなる真空二重構造
体における内筒部の外面にアルミニウム又は銅の箔を被
覆する方法であって、該箔を上記内筒部の外面に略1周
巻設しつつ、その箔に周方向に抵抗溶接を施して、上記
内筒部に上記箔を固着するものである。Further, aluminum or copper foil is formed on the outer surface of the inner cylindrical portion of the vacuum double structure in which a vacuum gap is formed between the outer cylindrical portion and the inner cylindrical portion housed in the outer cylindrical portion. A method in which the foil is wound around the outer surface of the inner cylindrical portion substantially once, and the foil is subjected to resistance welding in a circumferential direction to fix the foil to the inner cylindrical portion. is there.
【0012】なお、抵抗溶接による溶着部が破線状とな
るように抵抗溶接を断続的に行うようにするのが望まし
い。It is desirable that the resistance welding be performed intermittently so that the welded portion formed by the resistance welding becomes a broken line.
【0013】[0013]
【発明の実施の形態】以下、図示の実施の形態に基き本
発明を詳説する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on the illustrated embodiments.
【0014】図1と図2は本発明に係る真空二重構造体
の実施の一形態を示し、この真空二重構造体Aは、外筒
部1とその外筒部1内に収納される内筒部2との間に真
空の空隙部3を形成してなるものであり、保温用の容器
の場合を例示する。FIGS. 1 and 2 show an embodiment of a vacuum double structure according to the present invention. This vacuum double structure A is housed in an outer cylinder 1 and the outer cylinder 1. A vacuum space 3 is formed between the inner cylinder 2 and the case, and the case of a heat retaining container is exemplified.
【0015】外筒部1と内筒部2は、夫々、ステンレス
等の金属にて形成され、上端の口部4のみで相互に接合
されている。また、外筒部1と内筒部2の下端部には、
底壁部10,11が形成される。The outer tube portion 1 and the inner tube portion 2 are each formed of a metal such as stainless steel and are joined to each other only at the upper end opening 4. Also, at the lower ends of the outer cylinder 1 and the inner cylinder 2,
Bottom walls 10 and 11 are formed.
【0016】しかして、図1と図2と図3と図4に示す
ように、内筒部2の外面をアルミニウム又は銅の箔5に
て覆うと共に、その箔5の所定部位を抵抗溶接にて内筒
部2に固着する。具体的には、箔5の一端縁部と他端縁
部を重ね合わせて重ね代7を形成し、その重ね代7を、
抵抗溶接にて内筒部2に固着する。As shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 4, the outer surface of the inner cylindrical portion 2 is covered with aluminum or copper foil 5 and a predetermined portion of the foil 5 is subjected to resistance welding. To the inner cylinder 2. Specifically, one end edge and the other end of the foil 5 are overlapped to form an overlap allowance 7, and the overlap allowance 7 is
It is fixed to the inner cylinder part 2 by resistance welding.
【0017】さらに詳しく説明すると、図5の拡大断面
図に示すように、箔5の一端縁部5aを内筒部2に溶着
して溶着部W1 を形成し、さらに、箔5の他端縁部5b
を一端縁部5aを介して内筒部2に溶着して溶着部W2
を形成する。言い換えれば、断面形状に於て、2箇所の
溶着部W1 ,W2 にて箔5の一端縁部5aと他端縁部5
bを内筒部2の外面に溶着する。なお、本発明の図面
中、断面図に於て、溶着部W,W1 ,W2 を×印にて示
した。[0017] In more detail, as shown in the enlarged sectional view of FIG. 5, it is welded to one end edge portion 5a of the foil 5 to the inner cylindrical portion 2 to form a welded portion W 1, The other end of the foil 5 Edge 5b
Is welded to the inner cylindrical portion 2 via one edge portion 5a to form a welded portion W 2
To form In other words, At a cross-sectional shape, the welded portion W 1 of the two places, W 2 at one end of the foil 5 edge 5a and the other edge 5
b is welded to the outer surface of the inner cylinder 2. In the drawings of the present invention, welded portions W, W 1 , and W 2 are indicated by crosses in the cross-sectional views.
【0018】また、図4に示すように、抵抗溶接にて固
着した溶着部Wとその近傍を除く大半面積部位に於て、
内筒部2とそれを覆う箔5との間に隙間6を形成する。
また、図2と図3に示すように、抵抗溶接による溶着部
Wは、内筒部2の長手方向と平行な破線状とされる。Further, as shown in FIG. 4, in the weld area W fixed by resistance welding and in most areas except for the vicinity thereof,
A gap 6 is formed between the inner cylinder 2 and the foil 5 covering the inner cylinder.
Further, as shown in FIGS. 2 and 3, the welded portion W formed by resistance welding has a dashed shape parallel to the longitudinal direction of the inner cylindrical portion 2.
【0019】しかして、この真空二重構造体Aの内筒部
2の外面に箔5を被覆する内筒部外面箔被覆方法を説明
すると、図6に示すように、箔5を巻いてなる巻設体8
から箔5を引き出して、押さえロール9,9にて箔5を
平坦とし、その後、切断カッター12, 12にて箔5を所定
長さに切断する。The method of coating the outer surface of the inner cylindrical portion 2 of the vacuum double structure A with the foil 5 will now be described. As shown in FIG. 6, the foil 5 is wound. Wound body 8
The foil 5 is pulled out from the above, flattened by the press rolls 9, 9, and then cut into a predetermined length by the cutting cutters 12, 12.
【0020】次に、図6にイにて示す如く箔5の一端縁
部5aを内筒部2の外面に抵抗溶接にて固着する。即
ち、回転可能な円盤状の電極本体15を有する抵抗溶接電
極13にて、箔5の一端縁部5aに沿って電極本体15を転
動させて、溶着部Wが破線状となるようにシーム溶接
(抵抗溶接)を断続的に行う。つまり、電極13を箔5の
一端縁部5aに押圧しつつ転動させ、(図示省略の)電
源から断続的に電流を供給する。そして、ロにて示す如
く箔5を内筒部2の外面に略1周巻設する。このとき、
箔5と内筒部2との間に隙間が生ずるように巻き付け
る。14は箔5を内筒部2に巻き付けるための回転ロール
である。Next, as shown in FIG. 6A, one end edge 5a of the foil 5 is fixed to the outer surface of the inner cylindrical portion 2 by resistance welding. That is, the electrode body 15 is rolled along one edge 5a of the foil 5 by the resistance welding electrode 13 having the rotatable disk-shaped electrode body 15, so that the seam is formed so that the welded portion W becomes a broken line. Welding (resistance welding) is performed intermittently. That is, the electrode 13 is rolled while being pressed against one end edge 5a of the foil 5, and a current is intermittently supplied from a power source (not shown). Then, the foil 5 is wound around the outer surface of the inner cylindrical portion 2 substantially once as indicated by B. At this time,
It is wound so that a gap is formed between the foil 5 and the inner cylinder portion 2. Reference numeral 14 denotes a rotating roll for winding the foil 5 around the inner cylinder 2.
【0021】さらに、ハにて示す如く箔5の他端縁部5
bを、抵抗溶接にて内筒部2に固着する。即ち、箔5の
一端縁部5a及び他端縁部5bに沿って抵抗溶接電極13
の電極本体15を押圧しつつ転動させて、電流を断続的に
供給して溶着部Wが破線状となるようにシーム溶接(抵
抗溶接)を断続的に行う。Further, as shown by C, the other end 5 of the foil 5
b is fixed to the inner cylindrical portion 2 by resistance welding. That is, the resistance welding electrode 13 extends along one end 5a and the other end 5b of the foil 5.
The electrode body 15 is rolled while being pressed, and a current is intermittently supplied so that seam welding (resistance welding) is performed intermittently so that the welded portion W becomes a broken line.
【0022】上記の如くシーム溶接を行うことにより、
ロウ材や溶接棒等の溶材を必要とせず、作業環境が、良
好に保たれ、さらに、溶接中に箔5の一端縁部5a及び
他端縁部5bが位置ずれするのを防止できると共に、箔
5に皺が生じ難くすることができる。かつ、箔5の重ね
代7の幅を小さくすることができる。具体的には、重ね
代7の幅寸法をcとしたときに0<c≦10mmと小さくす
ることができる。従って、箔5の使用量が少なくて済
み、コストダウンに貢献できる。また、箔5がルーズな
状態で内筒部2を覆うことができ、箔5と内筒部2との
間に容易に隙間6を形成できる。By performing seam welding as described above,
It does not require a brazing material or a welding material such as a welding rod, the working environment is maintained well, and it is possible to prevent the one edge 5a and the other edge 5b of the foil 5 from being displaced during welding. Wrinkles can be hardly generated on the foil 5. In addition, the width of the overlapping margin 7 of the foil 5 can be reduced. Specifically, when the width dimension of the overlap margin 7 is c, it can be reduced to 0 <c ≦ 10 mm. Therefore, the amount of use of the foil 5 can be reduced, which can contribute to cost reduction. Further, the foil 5 can cover the inner cylindrical portion 2 in a loose state, and the gap 6 can be easily formed between the foil 5 and the inner cylindrical portion 2.
【0023】しかして、図5に示すように、箔5の一端
縁部5aを内筒部2に溶着してなる溶着部W1 と、箔5
の他端縁部5bを、一端縁部5aを介して内筒部2に溶
着してなる溶着部W2 を形成でき、箔5は内筒部2の外
面に確実に固定される。[0023] Thus, as shown in FIG. 5, the welded portion W 1 formed by welding one end edge 5a of the foil 5 to the inner cylindrical portion 2, the foil 5
The other end edge 5b, can form a weld portion W 2 formed by welding the inner cylinder portion 2 through one end edge 5a, the foil 5 is securely fixed to the outer surface of the inner cylinder portion 2.
【0024】その後、外筒部1と内筒部2を上端の口部
4のみで相互に接合して、外筒部1と内筒部2との間の
空気を抜いて真空の空隙部3を形成すれば、図1と図2
に示す真空二重構造体A(保温用の容器)が完成する。Thereafter, the outer cylindrical portion 1 and the inner cylindrical portion 2 are joined to each other only at the upper end opening 4, and the air between the outer cylindrical portion 1 and the inner cylindrical portion 2 is evacuated to form a vacuum gap 3 1 and FIG. 2
The vacuum double structure A (container for keeping heat) shown in FIG.
【0025】上述の構成により、この真空二重構造体
は、振動、回転等の外力や自重が作用しても、箔5のガ
タツキや位置ずれ及び外筒部1への接触等を防止でき
る。従って、断熱性能の低下や品質の低下を防止でき
る。かつ、箔のガタツキが生じないので異音の発生を防
止できる。With the above-described structure, even when an external force such as vibration or rotation or its own weight acts on the vacuum double structure, the vacuum double structure can prevent the foil 5 from rattling or displacing and from contacting the outer cylinder 1. Therefore, a decrease in heat insulation performance and a decrease in quality can be prevented. Moreover, since no rattling of the foil occurs, generation of abnormal noise can be prevented.
【0026】また、内筒部2と箔5との接触面積が極め
て小さくなるので、熱的な短絡も小さくなる。かつ、内
筒部2と箔5との間の隙間6を確実に保持でき、輻射熱
を遮蔽できる。従って、優れた断熱性能が得られる。Further, since the contact area between the inner cylindrical portion 2 and the foil 5 is extremely small, a thermal short circuit is also reduced. In addition, the gap 6 between the inner cylinder portion 2 and the foil 5 can be reliably held, and radiant heat can be shielded. Therefore, excellent heat insulating performance can be obtained.
【0027】次に、図7は、断面形状に於て、1箇所の
溶着部Wにて箔5の一端縁部5aと他端縁部5bを内筒
部2の外面に溶着した真空二重構造体Aを示す。このよ
うに、内筒部2を箔5にて覆うには、箔5を所定長さに
切断して、その箔5を内筒部2に略1周巻き付けた後
に、箔5を内筒部2の外面に略1周巻設し、次に、箔5
の一端縁部5aと他端縁部5bとの重ね代7を内筒部2
の長手方向へ1本の破線状となるように抵抗溶接を施
す。Next, FIG. 7 shows a cross-sectional view of a vacuum doubling in which one end 5a and the other end 5b of the foil 5 are welded to the outer surface of the inner cylindrical portion 2 at one welding portion W. 1 shows a structure A. As described above, in order to cover the inner cylindrical portion 2 with the foil 5, the foil 5 is cut into a predetermined length, the foil 5 is wound around the inner cylindrical portion 2 substantially once, and then the foil 5 is 2 is wound around the outer surface substantially once, and then the foil 5
The overlapping margin 7 between the one end edge 5a and the other end 5b is
Is subjected to resistance welding so as to form one broken line in the longitudinal direction.
【0028】つまり、箔5の他端縁部5bを、一端縁部
5aを介して内筒部2の外面にシーム溶接にて固着す
る。他の構成は、図1〜図6のものと同様である。これ
により、箔5の一端縁部5aのみを内筒部2の外面に溶
着する工程が不要となり、工数を低減できる。That is, the other end 5b of the foil 5 is fixed to the outer surface of the inner cylinder 2 via the one end 5a by seam welding. Other configurations are the same as those in FIGS. Thereby, the step of welding only one edge 5a of the foil 5 to the outer surface of the inner cylinder 2 becomes unnecessary, and the number of steps can be reduced.
【0029】また、図8と図9と図10は、他の真空二重
構造体の要部を示し、箔5の一端縁部5aと他端縁部5
bとが、微小間隔Sをもって分離状として、夫々、抵抗
溶接にて内筒部2に固着されている。このように、内筒
部2を箔5にて覆うには、箔5を所定長さに切断して、
その箔5を内筒部2に略1周巻き付けて、図10に示すよ
うに、箔5の一端縁部5aと他端縁部5bを微小間隔S
をもって分離状に配置し、2個の円盤状の電極本体15,
15を有する抵抗溶接電極13にて、相互に分離状の一端縁
部5aと他端縁部5bを内筒部2の外面に同時にシーム
溶接にて固着する。FIGS. 8, 9 and 10 show the essential parts of another vacuum double structure, wherein one end 5a and the other end 5a of the foil 5 are shown.
b are separated from each other at a minute interval S and are fixed to the inner cylindrical portion 2 by resistance welding. Thus, in order to cover the inner cylinder part 2 with the foil 5, the foil 5 is cut into a predetermined length,
The foil 5 is wound around the inner cylindrical part 2 substantially one round, and as shown in FIG.
Are arranged in a separated manner, and two disk-shaped electrode bodies 15,
The one end 5a and the other end 5b, which are separated from each other, are simultaneously fixed to the outer surface of the inner cylindrical portion 2 by seam welding at the resistance welding electrode 13 having 15.
【0030】つまり、箔5の一端縁部5aと他端縁部5
bを、内筒部2に抵抗溶接にて固着する。他の構成は、
図1〜図6のものと同様である。これにより、工数を低
減できると共に、箔5の一端縁部5aと他端縁部5bを
内筒部2の外面に確実に溶着できる。That is, one end 5a of the foil 5 and the other end 5
b is fixed to the inner cylindrical portion 2 by resistance welding. Other configurations are
It is similar to that of FIGS. Thereby, the number of steps can be reduced, and the one end 5a and the other end 5b of the foil 5 can be reliably welded to the outer surface of the inner cylinder 2.
【0031】また、図11は、別の真空二重構造体を示
し、図12は、その真空二重構造体Aの内筒部2を箔5に
て覆った状態を示す。箔5は、周方向に破線状とされた
溶着部Wにて内筒部2の外周面に固着される。しかし
て、このように、内筒部2を箔5にて覆うには、図13に
示すように、箔5を巻いてなる巻設体8から箔5を引き
出して、押さえロール9,9にて平坦とし、その後、切
断カッター12, 12にて箔5を所定長さに切断する。FIG. 11 shows another vacuum double structure, and FIG. 12 shows a state in which the inner cylindrical portion 2 of the vacuum double structure A is covered with a foil 5. The foil 5 is fixed to the outer peripheral surface of the inner cylindrical portion 2 at a welding portion W which is formed in a dashed shape in the circumferential direction. Thus, in order to cover the inner cylindrical portion 2 with the foil 5 in this manner, as shown in FIG. 13, the foil 5 is pulled out from the wound body 8 around which the foil 5 is wound, and Then, the foil 5 is cut to a predetermined length by the cutting cutters 12 and 12.
【0032】次に、ホ,へにて示す如く箔5を内筒部2
の外面に略1周巻設しつつ、その箔5に周方向に抵抗溶
接を施して、内筒部2に箔5を固着する。具体的には、
溶着部Wが破線状となるように抵抗溶接(シーム溶接)
を周方向に断続的に行う。なお、図12では、溶着部W
が、周方向の2本の破線状とされているが、2個の抵抗
溶接電極13,13の2個の円盤状の電極本体15, 15にて、
同時に2本の破線状の溶接部Wを形成するのが好まし
い。このように構成したことにより、内筒部2を箔5に
て覆うと同時にその箔5を内筒部2に溶着できるので、
工数を一層低減することができる。Next, as shown in FIGS.
The foil 5 is fixed to the inner cylindrical portion 2 by performing resistance welding in the circumferential direction on the foil 5 while being wound around the outer surface substantially once. In particular,
Resistance welding (seam welding) so that the welded portion W becomes a broken line
Is performed intermittently in the circumferential direction. Note that, in FIG.
Are two dashed lines in the circumferential direction, but two disk-shaped electrode bodies 15, 15 of the two resistance welding electrodes 13, 13
It is preferable to form two dashed welds W at the same time. With this configuration, the inner cylindrical portion 2 can be covered with the foil 5 and the foil 5 can be welded to the inner cylindrical portion 2 at the same time.
The number of steps can be further reduced.
【0033】次に、図14と図15と図16と図17は、さらに
別の真空二重構造体を示し、寒冷地等で使用する断熱用
の二重配管の場合を例示する。即ち、外筒部1と内筒部
2の両端部が開口し、その外筒部1と内筒部2が両方の
開口部16,16のみで相互に接合されている。Next, FIGS. 14, 15, 16 and 17 show still another vacuum double structure, and exemplifies a case of a double pipe for heat insulation used in a cold region or the like. That is, both ends of the outer cylinder part 1 and the inner cylinder part 2 are open, and the outer cylinder part 1 and the inner cylinder part 2 are joined to each other only by the two openings 16, 16.
【0034】しかして、箔5の一端縁部5aを内筒部2
に溶着して溶着部W1 を形成し、さらに、箔5の他端縁
部5bを一端縁部5aを介して内筒部2に溶着して溶着
部W2 を形成する。つまり、内筒部2の外面を箔5にて
覆うと共に、その箔5の所定部位を抵抗溶接にて内筒部
2に固着する。かつ、抵抗溶接にて固着した溶着部Wと
その近傍を除く大半面積部位に於て、内筒部2とそれを
覆う箔5との間に隙間6を形成する。さらに、抵抗溶接
による溶着部Wは、内筒部2の長手方向と平行な破線状
とされる。なお、内筒部外面箔被覆方法は、図6にて説
明したものと同様である。Thus, one end edge 5a of the foil 5 is
The welded to form a welded portion W 1, further forming a weld portion W 2 of the other end edge 5b of the foil 5 and welded to the inner cylinder portion 2 through one end edge 5a. That is, the outer surface of the inner cylinder 2 is covered with the foil 5 and a predetermined portion of the foil 5 is fixed to the inner cylinder 2 by resistance welding. In addition, a gap 6 is formed between the inner cylindrical portion 2 and the foil 5 covering the inner cylindrical portion 2 in most of the area excluding the welded portion W fixed by resistance welding and the vicinity thereof. Further, the welded portion W formed by resistance welding has a dashed shape parallel to the longitudinal direction of the inner cylinder portion 2. The method for coating the outer surface foil of the inner cylinder portion is the same as that described with reference to FIG.
【0035】このように構成したことにより、この真空
二重構造体A(二重配管)は、高い品質と優れた断熱性
を得ることができる。なお、内筒部外面箔被覆方法とし
ては、図7にて説明したもの、図8と図9と図10にて説
明したもの、あるいは、図11と図12と図13にて説明した
ものに変更するも好ましい。With this configuration, this vacuum double structure A (double pipe) can obtain high quality and excellent heat insulation. As the method of coating the outer surface of the inner cylinder portion, the method described with reference to FIG. 7, the method described with reference to FIGS. 8, 9, and 10, or the method described with reference to FIGS. Changing is also preferable.
【0036】なお、本発明は上述の実施の形態以外にも
設計変更自由であり、各々の抵抗溶接を、連続的に行っ
ても良い。また、外筒部1及び内筒部2の断面形状とし
ては、図例のような円形以外にも、楕円形、三角形、矩
形、あるいは、その他の多角形としてもよい場合があ
る。また、抵抗溶接としては、シーム溶接以外にも、点
溶接(スポット溶接)とするも好ましい場合がある。It is to be noted that the present invention is not limited to the above-described embodiment, and the design thereof can be freely changed. Each resistance welding may be performed continuously. The cross-sectional shapes of the outer tube portion 1 and the inner tube portion 2 may be elliptical, triangular, rectangular, or other polygons in addition to the circular shape as shown in the figure. In addition, spot welding (spot welding) may be preferable as resistance welding in addition to seam welding.
【0037】[0037]
【発明の効果】本発明は上述の構成により、次のような
著大な効果を奏する。The present invention has the following remarkable effects by the above-mentioned structure.
【0038】請求項1記載の真空二重構造体によれば、
振動や回転力等の外力に対して高い耐久性を得ることが
できる。従って、断熱性に優れる。かつ、箔5のガタツ
キが生じないので異音が発生しない。また、生産性が向
上し、かつ、製造コストを低くすることができる。According to the vacuum double structure of the first aspect,
High durability against external forces such as vibration and rotational force can be obtained. Therefore, it is excellent in heat insulation. In addition, since the backlash of the foil 5 does not occur, no abnormal noise occurs. Further, productivity can be improved and manufacturing cost can be reduced.
【0039】請求項2記載の真空二重構造体によれば、
請求項1記載のものと同様の効果を奏すると共に、内筒
部2と箔5との接触面積を小さくする事ができるため、
熱的な短絡が減少し、かつ、箔5にて輻射熱を遮蔽でき
るため、一層優れた断熱性を得ることができる。According to the vacuum double structure of claim 2,
Since the same effect as that of the first aspect can be obtained, and the contact area between the inner cylindrical portion 2 and the foil 5 can be reduced,
Since thermal short circuits are reduced and the radiant heat can be shielded by the foil 5, more excellent heat insulating properties can be obtained.
【0040】請求項3記載の真空二重構造体によれば、
請求項1又は2記載のものと同様の効果を奏すると共
に、保温性(断熱性)に優れた容器を形成できる。According to the vacuum double structure of the third aspect,
The same effect as that of the first or second aspect can be obtained, and a container excellent in heat retention (insulation) can be formed.
【0041】請求項4記載の真空二重構造体によれば、
請求項1,2又は3記載のものと同様の効果を奏すると
共に、内筒部2と箔5との接触面積をきわめて小さくす
る事ができ、さらに一層優れた断熱性を得ることができ
る。According to the vacuum double structure of the fourth aspect,
The same effect as that of the first, second or third aspect can be obtained, and the contact area between the inner cylindrical portion 2 and the foil 5 can be made extremely small, so that more excellent heat insulating properties can be obtained.
【0042】請求項5記載の真空二重構造体によれば、
請求項1,2又は3記載のものと同様の効果を奏すると
共に、内筒部2に箔5を確実に固定することができ、振
動や回転力等の外力に対する耐久性が一層高くなる。According to the vacuum double structure of claim 5,
The same effect as that of the first, second, or third aspect is obtained, and the foil 5 can be securely fixed to the inner cylindrical portion 2, and the durability against external forces such as vibration and rotational force is further increased.
【0043】請求項6記載の内筒部外面箔被覆方法によ
れば、内筒部2に箔5を簡単かつ確実に固定することが
できる。かつ、箔5の使用量が少なくて済み、製造コス
ト減少に貢献できる。According to the method for coating the outer surface foil of the inner cylinder portion, the foil 5 can be easily and reliably fixed to the inner cylinder portion 2. In addition, the amount of the foil 5 used is small, which can contribute to a reduction in manufacturing cost.
【0044】請求項7記載の内筒部外面箔被覆方法によ
れば、内筒部2に箔5を簡単かつ確実に固定することが
できる。かつ、工数を低減することができると共に、箔
5の使用量が少なくて済み、製造コスト減少に貢献でき
る。According to the method for covering the outer foil of the inner cylinder portion according to the seventh aspect, the foil 5 can be easily and reliably fixed to the inner cylinder portion 2. In addition, the number of steps can be reduced, and the amount of use of the foil 5 can be reduced, which can contribute to a reduction in manufacturing cost.
【0045】請求項8記載の内筒部外面箔被覆方法によ
れば、内筒部2に箔5を簡単かつ確実に固定することが
できる。かつ、工数を一層低減することができると共
に、箔5の使用量が少なくて済み、製造コスト減少に貢
献できる。According to the method for coating the outer surface foil of the inner cylinder portion, the foil 5 can be easily and reliably fixed to the inner cylinder portion 2. In addition, the number of steps can be further reduced, and the amount of use of the foil 5 can be reduced, which can contribute to a reduction in manufacturing cost.
【0046】請求項9記載の内筒部外面箔被覆方法によ
れば、請求項6,7又は8記載のものと同様の効果を奏
すると共に、抵抗溶接の際に、箔5に皺が生じ難く、か
つ、箔5の位置ずれを防止できる。According to the ninth aspect of the present invention, the same effect as that of the sixth, seventh or eighth aspect is obtained, and wrinkles are hardly generated on the foil 5 during resistance welding. In addition, displacement of the foil 5 can be prevented.
【図1】本発明の真空二重構造体の実施の一形態を示す
断面図である。FIG. 1 is a cross-sectional view showing one embodiment of a vacuum dual structure of the present invention.
【図2】外筒部のみを断面とした正面図である。FIG. 2 is a front view in which only the outer cylinder is sectioned.
【図3】内筒部を箔にて覆った状態の説明図である。FIG. 3 is an explanatory view of a state in which an inner cylindrical portion is covered with a foil.
【図4】要部断面平面図である。FIG. 4 is a cross-sectional plan view of a main part.
【図5】要部拡大断面図である。FIG. 5 is an enlarged sectional view of a main part.
【図6】内筒部外面箔被覆方法の説明図である。FIG. 6 is an explanatory view of a method of coating the outer surface foil of the inner cylinder portion.
【図7】要部拡大断面図である。FIG. 7 is an enlarged sectional view of a main part.
【図8】真空二重構造体の他の実施の形態の正面図であ
る。FIG. 8 is a front view of another embodiment of the vacuum dual structure.
【図9】要部拡大断面図である。FIG. 9 is an enlarged sectional view of a main part.
【図10】断面平面図である。FIG. 10 is a cross-sectional plan view.
【図11】真空二重構造体の別の実施の形態の断面正面図
である。FIG. 11 is a cross-sectional front view of another embodiment of the vacuum dual structure.
【図12】内筒部を箔にて覆った状態の説明図である。FIG. 12 is an explanatory diagram of a state in which the inner cylindrical portion is covered with a foil.
【図13】他の内筒部外面箔被覆方法の説明図である。FIG. 13 is an explanatory view of another inner cylinder portion outer surface foil coating method.
【図14】真空二重構造体のさらに別の実施の形態の断面
図である。FIG. 14 is a sectional view of still another embodiment of the vacuum dual structure.
【図15】外筒部を破断した状態の説明図である。FIG. 15 is an explanatory diagram of a state in which an outer cylindrical portion is broken.
【図16】要部拡大断面図である。FIG. 16 is an enlarged sectional view of a main part.
【図17】要部断面図である。FIG. 17 is a sectional view of a main part.
1 外筒部 2 内筒部 3 空隙部 4 口部 5 箔 5a 一端縁部 5b 他端縁部 6 隙間 7 重ね代 A 真空二重構造体 W 溶着部 S 微小間隔 DESCRIPTION OF SYMBOLS 1 Outer cylinder part 2 Inner cylinder part 3 Void part 4 Mouth part 5 Foil 5a One end edge part 5b The other end edge part 6 Gap 7 Overlap margin A Vacuum double structure W Welding part S Minute space
Claims (9)
筒部2との間に真空の空隙部3を形成してなる真空二重
構造体に於て、上記内筒部2の外面をアルミニウム又は
銅の箔5にて覆うと共に、その箔5の所定部位を抵抗溶
接にて内筒部2に固着したことを特徴とする真空二重構
造体。1. A vacuum double structure comprising a vacuum gap 3 formed between an outer cylinder 1 and an inner cylinder 2 housed in the outer cylinder 1. A vacuum double structure wherein an outer surface of the portion 2 is covered with an aluminum or copper foil 5 and a predetermined portion of the foil 5 is fixed to the inner cylindrical portion 2 by resistance welding.
傍を除く大半面積部位に於て、内筒部2とそれを覆う箔
5との間に隙間6が形成されている請求項1記載の真空
二重構造体。2. A gap 6 is formed between the inner cylindrical portion 2 and the foil 5 covering the welded portion W fixed by resistance welding and in most areas except the vicinity thereof. The vacuum double structure as described.
互に接合されている請求項1又は2記載の真空二重構造
体。3. The vacuum double structure according to claim 1, wherein the outer tube portion 1 and the inner tube portion 2 are joined to each other only at the mouth portion 4.
ね合わせて重ね代7を形成し、その重ね代7が、抵抗溶
接にて内筒部2に固着されている請求項1,2又は3記
載の真空二重構造体。4. An overlapping margin 7 is formed by overlapping one edge 5a and the other edge 5b of the foil 5, and the overlapping margin 7 is fixed to the inner cylinder 2 by resistance welding. 4. The vacuum double structure according to 1, 2, or 3.
が、微小間隔Sをもって分離状として、夫々、抵抗溶接
にて内筒部2に固着されている請求項1,2又は3記載
の真空二重構造体。5. An end portion 5a and an other end portion 5b of the foil 5 are separated from each other at a minute interval S and are fixed to the inner cylindrical portion 2 by resistance welding. 3. The vacuum double structure according to 3.
筒部2との間に真空の空隙部3を形成してなる真空二重
構造体Aにおける内筒部2の外面にアルミニウム又は銅
の箔5を被覆する方法であって、該箔5の一端縁部5a
を上記内筒部2の外面に抵抗溶接にて固着し、その箔5
を上記内筒部2の外面に略1周巻設し、さらに、その箔
5の他端縁部5bを、抵抗溶接にて上記内筒部2に固着
することを特徴とする内筒部外面箔被覆方法。6. The inner cylindrical portion 2 of the vacuum double-structure A having a vacuum space 3 formed between the outer cylindrical portion 1 and the inner cylindrical portion 2 housed in the outer cylindrical portion 1. A method of coating an outer surface with an aluminum or copper foil 5, wherein one end edge 5a of the foil 5 is provided.
Is fixed to the outer surface of the inner cylindrical portion 2 by resistance welding.
Is wound around the outer surface of the inner cylindrical portion 2 substantially once, and the other end 5b of the foil 5 is fixed to the inner cylindrical portion 2 by resistance welding. Foil coating method.
筒部2との間に真空の空隙部3を形成してなる真空二重
構造体Aにおける内筒部2の外面にアルミニウム又は銅
の箔5を被覆する方法であって、該箔5を上記内筒部2
の外面に略1周巻設し、次に、その箔5の一端縁部5a
と他端縁部5bを、上記内筒部2に抵抗溶接にて固着す
ることを特徴とする内筒部外面箔被覆方法。7. The inner cylindrical portion 2 of the vacuum double structure A having a vacuum space 3 formed between the outer cylindrical portion 1 and the inner cylindrical portion 2 housed in the outer cylindrical portion 1. A method of coating an outer surface with an aluminum or copper foil 5, wherein the foil 5 is coated with the inner cylindrical portion 2.
Is wound around the outer surface substantially once, and then one end edge 5a of the foil 5 is wound.
And the other end edge 5b is fixed to the inner cylinder 2 by resistance welding.
筒部2との間に真空の空隙部3を形成してなる真空二重
構造体Aにおける内筒部2の外面にアルミニウム又は銅
の箔5を被覆する方法であって、該箔5を上記内筒部2
の外面に略1周巻設しつつ、その箔5に周方向に抵抗溶
接を施して、上記内筒部2に上記箔5を固着することを
特徴とする内筒部外面箔被覆方法。8. An inner cylindrical portion 2 of a vacuum double structure A having a vacuum space 3 formed between an outer cylindrical portion 1 and an inner cylindrical portion 2 housed in the outer cylindrical portion 1. A method of coating an outer surface with an aluminum or copper foil 5, wherein the foil 5 is coated with the inner cylindrical portion 2.
A method of coating the foil 5 on the outer surface of the inner cylinder 2 by applying resistance welding to the foil 5 in the circumferential direction while winding the foil 5 substantially one round on the outer surface of the inner cylinder 2.
ように抵抗溶接を断続的に行うようにした請求項6,7
又は8記載の内筒部外面箔被覆方法。9. The resistance welding is performed intermittently so that the welded portion W formed by the resistance welding has a broken line shape.
Or the method of coating the inner cylinder portion outer surface foil described in 8 above.
Priority Applications (1)
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JP8252458A JP2865634B2 (en) | 1996-09-02 | 1996-09-02 | Vacuum double structure and inner cylinder outer foil coating method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP8252458A JP2865634B2 (en) | 1996-09-02 | 1996-09-02 | Vacuum double structure and inner cylinder outer foil coating method |
Publications (2)
Publication Number | Publication Date |
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JPH1076336A true JPH1076336A (en) | 1998-03-24 |
JP2865634B2 JP2865634B2 (en) | 1999-03-08 |
Family
ID=17237669
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002364798A (en) * | 2001-06-06 | 2002-12-18 | Ishikawajima Harima Heavy Ind Co Ltd | Side wall heat shield structure |
KR100622468B1 (en) * | 1999-04-23 | 2006-09-11 | 산요덴키가부시키가이샤 | Inner Housing for Hydrostat Cabinet |
WO2008078913A1 (en) * | 2006-12-22 | 2008-07-03 | Posco | Apparatus and method for on-line detecting welding part of strip sheet |
JP2018126529A (en) * | 2018-03-12 | 2018-08-16 | 象印マホービン株式会社 | Beverage container |
-
1996
- 1996-09-02 JP JP8252458A patent/JP2865634B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100622468B1 (en) * | 1999-04-23 | 2006-09-11 | 산요덴키가부시키가이샤 | Inner Housing for Hydrostat Cabinet |
JP2002364798A (en) * | 2001-06-06 | 2002-12-18 | Ishikawajima Harima Heavy Ind Co Ltd | Side wall heat shield structure |
WO2008078913A1 (en) * | 2006-12-22 | 2008-07-03 | Posco | Apparatus and method for on-line detecting welding part of strip sheet |
JP2018126529A (en) * | 2018-03-12 | 2018-08-16 | 象印マホービン株式会社 | Beverage container |
Also Published As
Publication number | Publication date |
---|---|
JP2865634B2 (en) | 1999-03-08 |
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