JPH066028Y2 - Beverage can - Google Patents
Beverage canInfo
- Publication number
- JPH066028Y2 JPH066028Y2 JP11254788U JP11254788U JPH066028Y2 JP H066028 Y2 JPH066028 Y2 JP H066028Y2 JP 11254788 U JP11254788 U JP 11254788U JP 11254788 U JP11254788 U JP 11254788U JP H066028 Y2 JPH066028 Y2 JP H066028Y2
- Authority
- JP
- Japan
- Prior art keywords
- beverage
- adhesive
- induction
- seam
- heated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Rigid Containers With Two Or More Constituent Elements (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、自動販売機で販売されるコーヒー、紅茶など
の中身飲料を収容した飲料缶、特に自動販売機の機内に
誘導加熱式の商品加熱装置を装備し、ホット飲料を選択
した場合に販売の都度飲料缶を商品加熱装置へ導いて販
売温度に誘導加熱するようにした飲料缶に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a beverage can containing a beverage such as coffee or tea sold in a vending machine, and in particular, an induction heating type product in the vending machine. The present invention relates to a beverage can that is equipped with a heating device and guides the beverage can to a commodity heating device for induction heating to a selling temperature each time when hot beverage is selected.
頭記した自動販売機の商品加熱装置として、商品取出口
の近傍に高周波誘導加熱装置を備え、販売時にホット飲
料を選択した場合に、機内の商品収納部から搬出された
飲料缶を前記誘導加熱装置へ導いて加熱し、ホット飲料
として販売に供するようにしたものが例えば特開昭５４
−６９９として公知である。As a product heating device for the above-mentioned vending machine, a high-frequency induction heating device is provided near the product outlet, and when a hot beverage is selected at the time of sale, the beverage can carried out from the product storage section in the machine is induction heated. For example, the one which is introduced into a device and heated so as to be sold as a hot beverage is disclosed in, for example, JP-A-54.
Known as -699.
かかる商品加熱装置による誘導加熱の原理を第４図で説
明すると、図において１はコーヒーなどの中身飲料を収
容した飲料缶、２は誘導コイル、３は高周波電源であ
る。ここで、飲料缶１を誘導コイル２の中に挿入した状
態で誘導コイル２に高周波電流を通電すると、磁束と
の鎖交により飲料缶１に起電力が誘導され、缶自身の周
壁に沿って渦電流ｉが流れる。この結果ジュール熱によ
り缶自体が誘導加熱され、同時に缶内に収容されている
中身飲料が販売適温に加温される。The principle of induction heating by such a commodity heating device will be described with reference to FIG. 4. In the figure, 1 is a beverage can containing a content drink such as coffee, 2 is an induction coil, and 3 is a high-frequency power source. Here, when a high-frequency current is passed through the induction coil 2 with the beverage can 1 inserted in the induction coil 2, an electromotive force is induced in the beverage can 1 by interlinking with magnetic flux, and along the peripheral wall of the can itself. Eddy current i flows. As a result, the can itself is induction-heated by the Joule heat, and at the same time, the content beverage contained in the can is heated to a temperature suitable for sale.
一方、市場に出回っている飲料缶１として、缶胴を絞り
加工したアルミ缶もあるが、主流はブリキ製の缶であ
る。ところで、ブリキ缶の一般構造は第１図に示すよう
に、円筒状の缶胴11と、缶胴11の両端に被せた缶蓋12と
から成り、かつ缶胴11は第２図の断面図で表すようにブ
リキ板を筒状に巻いた上でその周面上で重なり合う継目
13を例えばエポキシ樹脂系の接着剤14で封止結合して製
作されている。On the other hand, as the beverage can 1 on the market, there are aluminum cans whose can bodies are drawn, but the mainstream is tin cans. By the way, the general structure of a tin can comprises, as shown in FIG. 1, a cylindrical can body 11 and a can lid 12 covering both ends of the can body 11, and the can body 11 is a sectional view of FIG. As shown in, the tin plate is rolled into a tubular shape, and the seams that overlap on the peripheral surface
It is manufactured by sealing and bonding 13 with an epoxy resin adhesive 14, for example.
ところで、上記のように飲料缶の缶胴継目を単に封止の
目的で接着剤により接着した従来の飲料缶を先記した商
品加熱装置で誘導加熱した場合に、しばしば飲料缶が不
測にパンクして中身飲料か漏れると言った不具合の発生
することが考案者の行った実験結果より確認されてい
る。By the way, when induction heating is performed by the above-described product heating device for a conventional beverage can, which is bonded with an adhesive for the purpose of simply sealing the can body joint of the beverage can as described above, the beverage can often unexpectedly punctures. It has been confirmed by the results of experiments conducted by the inventor that a problem such as leakage of the content drink occurs.
そこで、この原因について究明したところ、その原因は
次記の点にあることが判明した。すなわち、第４図で述
べたように飲料缶を誘導加熱すると、磁束との鎖交で缶
胴に高い起電力が誘導される。しかして、ブリキ缶の胴
部自体は高い導電性（体積抵抗率は１０-5Ωcm）である
のに対し、缶胴の継目はエポキシ樹脂系接着剤などで電
気的に絶縁（エポキシ樹脂の体積抵抗率は１０12Ωcm）
されているために、この継目部分で絶縁破壊（エポキシ
樹脂の絶縁破壊電圧は１６〜２２KV／mm）を引き起こ
し、これにより缶胴の継目端縁に発生したアークが要因
となって継目が局部的に過熱されてパンクし、中身飲料
が溢れ出る。Then, when the cause was investigated, it was found that the cause was the following point. That is, when the beverage can is induction-heated as described in FIG. 4, a high electromotive force is induced in the can body by interlinking with the magnetic flux. The body of the tin can itself has high conductivity (volume resistivity is 10 -5 Ωcm), while the seam of the can is electrically insulated with an epoxy resin adhesive (volume of epoxy resin). Resistivity is 10 12 Ωcm)
As a result of this, a dielectric breakdown (dielectric breakdown voltage of epoxy resin is 16 to 22 KV / mm) is caused at this seam, and the arc generated at the seam edge of the can body causes the seam to be localized. It is overheated and punctures, and the content drink overflows.
本考案は上記の点にかんがみ成されたものであり、前記
した考察結果を基に、自動販売機での販売に際して飲料
缶を誘導加熱した場合でも、飲料缶が不測にパンクする
ことなく、効果的に誘導加熱が行えるようにした飲料缶
を提供することを目的とする。The present invention has been conceived in view of the above points, and based on the above-mentioned consideration results, even when a beverage can is induction heated at the time of sale in a vending machine, the beverage can does not accidentally puncture, and the effect is obtained. An object of the present invention is to provide a beverage can that can be induction-heated.
上記課題を解決するために、本考案の飲料缶は、導電性
を与えた接着剤で缶胴の継目を封止結合するものとす
る。In order to solve the above-mentioned problems, the beverage can of the present invention is configured such that the seam of the can body is sealed and bonded by an adhesive having conductivity.
上記において、接着剤に導電性を与えるには、接着剤に
導電材の微粉末を分散して混入することにより容易に実
施できる。このように導電性を与えた接着材で飲料缶の
缶胴継目を封止結合しておくことにより、飲料缶を誘導
加熱した場合に、缶胴の継目部分で絶縁破壊，アーク発
生などを伴うことなく缶胴の周壁に沿って渦電流が支障
なく流れる。したがって不測に飲料缶がパンクすること
なく、飲料缶が効率よく誘導加熱されるようになる。In the above, in order to give conductivity to the adhesive, it can be easily carried out by dispersing and mixing fine powder of the conductive material in the adhesive. By sealing and bonding the can body joint of the beverage can with the adhesive material having conductivity in this way, when the beverage can is induction-heated, dielectric breakdown, arcing, etc. occur at the joint part of the can body. The eddy current flows along the peripheral wall of the can body without any trouble. Therefore, the beverage can is efficiently induction-heated without accidentally flattening the beverage can.
次に本考案の実施例を図について説明する。第１図に示
した構造の飲料缶に対し、その缶胴11の継目13を封止す
る接着剤14として、本考案では導電性を与えた接着剤を
用いて継目13を封止結合する。ここで接着剤に誘電性を
与えるには、例えば先記したエポキシ樹脂系の接着剤に
金属，カーボンブラックなどの導電材の微粉末を分散し
て混入することにより容易に実施できる。Next, an embodiment of the present invention will be described with reference to the drawings. In the present invention, the seam 13 is sealed and bonded to the beverage can having the structure shown in FIG. 1 by using a conductive adhesive as the adhesive 14 for sealing the seam 13 of the can body 11. Here, the dielectric property of the adhesive can be easily achieved by, for example, dispersing and mixing fine powder of a conductive material such as metal or carbon black into the epoxy resin adhesive described above.
ここで上記のブリキ缶を対象に、その缶胴の継目を従来
の接着剤、および導電性を与えた接着剤で封止した場合
の体積抵抗率を対比して表すと第３図のようになる。な
お、図中の点線（イ）は従来のエポキシ樹脂系接着剤、
実線（ロ）はエポキシ樹脂系接着剤に導電材粉末を混入
して導電性を与えた接着剤、破線（ハ）はブリキ製の缶
胴部に対する体積抵抗率（Ωcm）を表している。Here, the volume resistivity when the seams of the can body of the above tin can are sealed with a conventional adhesive and an electrically conductive adhesive is shown in comparison with FIG. Become. The dotted line (a) in the figure is a conventional epoxy resin adhesive,
The solid line (b) represents an adhesive that is made conductive by mixing conductive material powder into an epoxy resin adhesive, and the broken line (c) represents the volume resistivity (Ωcm) for a tin can body.
この図からも明らかなように、導電性を与えた接着剤で
缶胴の継目を封止結合することにより、継目部分の電気
抵抗が1012から103（Ωcm）まで大幅に低減する。した
がって第４図で述べたように飲料缶を誘導加熱した際に
は、缶胴の継目部分で絶縁破壊，アークなどを引き起こ
すことなく渦電流が缶胴の継目を障害なしに流れ、飲料
缶が効率よく誘導加熱されるようになる。As is clear from this figure, the electrical resistance of the seam portion is significantly reduced from 10 12 to 10 3 (Ωcm) by sealingly bonding the seam of the can body with an adhesive agent having conductivity. Therefore, as described in FIG. 4, when the beverage can is induction-heated, eddy currents flow through the joint of the can body without obstruction without causing dielectric breakdown or arc at the joint part of the can body, and the beverage can is Induction heating can be performed efficiently.
本考案による飲料缶は、以上説明したように構成されて
いるので、次記の効果を奏する。Since the beverage can according to the present invention is configured as described above, it has the following effects.
すなわち、飲料缶を自動販売機で販売するに際して、飲
料缶を誘導加熱した場合でも、飲料缶が不測にパンクし
て中身飲料が漏れ出ると言ったトラブル発生を防止でき
る。That is, when the beverage can is sold in the vending machine, even if the beverage can is induction-heated, it is possible to prevent the occurrence of troubles such as accidental puncture of the beverage can and leakage of the content beverage.
第１図は本考案の実施対象となる飲料缶の外形図、第２
図は第１図における缶胴の断面図、第３図は缶胴各部の
体積抵抗率を表した図、第４図は飲料缶の誘導加熱装置
の原理図である。図において、 １：飲料缶、11：缶胴、13：継目、14：接着剤、２：誘
導コイル、：磁束、ｉ：渦電流。FIG. 1 is an outline view of a beverage can, which is the subject of the present invention, and FIG.
1 is a sectional view of the can body in FIG. 1, FIG. 3 is a view showing the volume resistivity of each part of the can body, and FIG. 4 is a principle view of an induction heating device for a beverage can. In the figure, 1: drink can, 11: can body, 13: seam, 14: adhesive, 2: induction coil ,: magnetic flux, i: eddy current.
Claims (1)
販売機での販売を対象とした飲料缶であり、缶胴の継目
を接着剤で封止したものにおいて、導電性を与えた接着
剤で缶胴の継目を封止結合したことを特徴とする飲料
缶。1. A beverage can intended for sale in a vending machine equipped with an induction heating type product heating device, wherein the seam of the can body is sealed with an adhesive, and the adhesive is electrically conductive. A beverage can characterized in that the seam of the can body is sealed and bonded with an agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11254788U JPH066028Y2 (en) | 1988-08-27 | 1988-08-27 | Beverage can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11254788U JPH066028Y2 (en) | 1988-08-27 | 1988-08-27 | Beverage can |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0234439U JPH0234439U (en) | 1990-03-05 |
| JPH066028Y2 true JPH066028Y2 (en) | 1994-02-16 |
Family
ID=31351585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11254788U Expired - Lifetime JPH066028Y2 (en) | 1988-08-27 | 1988-08-27 | Beverage can |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066028Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6010938B2 (en) | 2012-03-14 | 2016-10-19 | 日産自動車株式会社 | Fuel cell |
| JP6010939B2 (en) | 2012-03-15 | 2016-10-19 | 日産自動車株式会社 | Vehicle control device |
-
1988
- 1988-08-27 JP JP11254788U patent/JPH066028Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6010938B2 (en) | 2012-03-14 | 2016-10-19 | 日産自動車株式会社 | Fuel cell |
| JP6010939B2 (en) | 2012-03-15 | 2016-10-19 | 日産自動車株式会社 | Vehicle control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0234439U (en) | 1990-03-05 |
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