JP2005082230A - Large-sized angular can made of metal sheet, lid opening tool, and lid opening method using the tool - Google Patents

Large-sized angular can made of metal sheet, lid opening tool, and lid opening method using the tool Download PDF

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JP2005082230A
JP2005082230A JP2003319607A JP2003319607A JP2005082230A JP 2005082230 A JP2005082230 A JP 2005082230A JP 2003319607 A JP2003319607 A JP 2003319607A JP 2003319607 A JP2003319607 A JP 2003319607A JP 2005082230 A JP2005082230 A JP 2005082230A
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lid
plate
score
metal plate
opening tool
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Makoto Ebara
真 江原
Kazuya Miyagawa
和也 宮川
Hideo Kukuminato
英雄 久々湊
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JFE Steel Corp
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JFE Steel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a large-sized angular can made of metal sheet which delivers excellent lid opening performance, allowing the lid to be opened by surely ripping the lid with little force while performing engagement with a score, while preventing powdery flaking of sealing compound in a can which is charged with solid bodies like fruits, etc., or liquid foods with low fluidity, or preventing an incident of entry of metal pieces into food products, a lid opening tool, and a lid opening method using the lid opening tool. <P>SOLUTION: The large-sized angular can made of metal sheet has its lid plate engraved with only a score circling along the inside of its wind-up portion. The lid opening tool to open this lid plate has a length at least equal to the length of the diagonal line of the lid plate of the large-sized angular can made of metal sheet, and comprises a tubular wind-up body having a slit in its longitudinal direction, a cutting blade, having a cutting edge at its tip, rising upright at the end of the tubular wind-up body, and of an operation handle mounted in such a way as to be extendedly provided in the longitudinal direction from the end of the tubular wind-up body. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、塗料、溶剤、化学品、油、食品などを充填して、保管、輸送する際に使用される18リットル缶、9リットル缶などの金属板製大型角缶、開蓋工具及びその開蓋工具を使用する開蓋方法に関する。   The present invention relates to a metal plate large square can such as 18 liter cans and 9 liter cans used for filling, storing, transporting paints, solvents, chemicals, oils, foods, etc. The present invention relates to a lid opening method using a lid opening tool.

18リットル缶、9リットル缶などの金属板製大型角缶は塗料、溶剤、化学品、油、食品など様々な産品の充填容器として利用され、トラックによる輸送や倉庫における短期あるいは長期の保管に供される。保管後内容物を取り出してこれを使用するのに、塗料、油のように流動性の高い物は天蓋板に設けられた小さなキャップを通じて容易に取り出すことができるが、固形物を含んだ食品、あるいは流動性の悪いケチャップ等の食品は、一般にこのような方法では取り出すことができない。   Large plate square cans such as 18 liter cans and 9 liter cans are used as filling containers for various products such as paints, solvents, chemicals, oils, foods, etc., and are used for transportation by truck and for short-term or long-term storage in warehouses. Is done. To remove the contents after storage and use them, paints and oils with high fluidity can be easily removed through a small cap on the canopy plate, but food containing solids, Or foodstuffs, such as ketchup with poor fluidity, cannot generally be taken out by such a method.

そのため、このような食品類を充填した缶は、再加工あるいは小売り用の小型容器に再充填するとき、缶切りや鉈状の刃先物を蓋板に押し当ててハンマで叩き、蓋板を切り裂いて全面にわたって大きく開くフルオープン開蓋法が一般に行われている。しかしながら、これらの食品類では、充填時に温水シャワーによるパストライゼーション処理や加圧水蒸気によるレトルト殺菌処理を行い、充填用孔蓋は二重巻き締め構造とし、さらにシーリングコンパウンドによる目張りが行われているために、上記のような開蓋手段を用いると、シーリングコンパウンドが粉末状に剥離して缶内の食品に混入するおそれがある。また、切り開きのときに生じた金属縁部が取り出される果実などの充填物に傷を付けたり、金属縁部から剥落した小さな金属片が食品中に落下するという事故に至ることもあった。   Therefore, when a can filled with such foods is refilled into a small container for reprocessing or retailing, the can opener or bowl-shaped cutting edge is pressed against the cover plate and hit with a hammer, and the cover plate is cut off. A full-open lid opening method that opens widely over the entire surface is generally performed. However, in these foods, pasteurization treatment with hot water shower and retort sterilization treatment with pressurized steam are performed at the time of filling, and the filling hole lid has a double-tightening structure, and further, the sealing compound is weathered. If the lid opening means as described above is used, the sealing compound may be peeled off in powder form and mixed into the food in the can. In addition, there is a case in which a filling such as a fruit from which a metal edge generated at the time of cutting is taken out is damaged, or a small metal piece peeled off from the metal edge falls into food.

このような問題を解決するために特許文献１、特許文献２では、蓋板の切り裂きたい位置に溝（スコア）を形成しておき、そのスコアに沿って蓋板を大きく切り開くという提案がなされている。この場合、缶の運送中の繰り返し疲労等によるスコア部からの破缶を防止するとともに開蓋を容易にするため、例えば図１１に示すように、金属製大型角缶1の巻き締め部2のやや内側の蓋板3の表面に周回するスコア6と、いずれかの蓋板隅部4に蓋板3を最初に切り裂くための補助スコア8を設け、図１２〜１３に示すような開蓋工具10を用いて缶の開蓋を行う方法が提案されている。この提案では尖った先端部を備えたペンチ様の開蓋工具10を使用してまずその先端部で蓋板隅部4に設けた補助スコア8を切り込んで蓋板隅部4を破断し、ついで開蓋工具10で破断された蓋板隅部4をはさんで上方に引き上げるようにしながら、スコア6に沿って蓋板3を引き裂いて開蓋するようになっている。
実公平3-1390号公報 特公平3-33581号公報 実開昭63-57297号公報 In order to solve such a problem, Patent Document 1 and Patent Document 2 propose that a groove (score) is formed at a position where the lid plate is to be cut, and that the lid plate is largely cut along the score. Yes. In this case, in order to prevent breakage from the score part due to repeated fatigue during transportation of the can and to facilitate opening, for example, as shown in FIG. A score 6 that circulates slightly on the surface of the lid plate 3 and an auxiliary score 8 for first tearing the lid plate 3 at one of the corners 4 of the lid plate, and a lid opening tool as shown in FIGS. 10 has been proposed to open the can. In this proposal, using a pliers-like opening tool 10 with a sharp tip, first cut the auxiliary score 8 provided at the corner 4 of the lid at the tip to break the corner 4 of the lid, The lid plate 3 is torn and opened along the score 6 while the lid plate corner 4 broken by the lid opening tool 10 is pulled upward.
No. 3-1390 Japanese Patent Publication No.3-33581 Japanese Utility Model Publication No. 63-57297

しかし上記の手段による場合には、最初に補助スコア8を切り込んで蓋板隅部4を破断し、その破断面を周回スコア6につなげていくのは容易でないという問題があるほか、切り込んだ一端を引き上げるのに相当の力を必要とし、その際、缶全体が持ち上がらないようにするためには、特許文献３に記載されているような缶の固定台を使用する必要があるなどの問題点があった。また、蓋板隅部4を引き上げて開蓋が進行するほど引き裂く力を加える点と蓋板の引き裂かれる箇所が遠くなって裂け目をスコアに合致させるのが困難になり、しばしば裂け目がスコア6から外れる（開蓋失敗）という問題点もあった。   However, in the case of the above means, there is a problem that it is not easy to cut the auxiliary score 8 first to break the cover plate corner 4 and connect the broken surface to the round score 6, and one end of the cut In order to prevent the can as a whole from lifting up, it is necessary to use a can fixing base as described in Patent Document 3 was there. Also, the lid plate corner 4 is pulled up to apply the tearing force as the lid progresses, and the torn part of the cover plate is far away, making it difficult to match the tear, and often the tear from score 6 There was also a problem that it came off (failed to open the lid).

本発明はこのような従来の問題点を解消し、果物などの固形物や流動性の低い流動物を充填した缶をシーリングコンパウンドの粉末状剥離や、食品中への金属片の落下事故を防ぎながら、小さい力でスコアに合致させて確実に蓋板を引き裂いて開蓋させることのできる開蓋性に優れる金属板製大型角缶、開蓋工具及びその開蓋工具を使用する開蓋方法を提案することを目的とする。   The present invention eliminates such conventional problems and prevents cans filled with solids such as fruits or fluids with low fluidity from causing powdery peeling of sealing compounds and accidental dropping of metal pieces into food. However, a large square can made of metal plate that can be opened reliably by matching the score with a small force and can be opened reliably, a lid opening tool and a lid opening method using the lid opening tool The purpose is to propose.

本発明の金属板製大型角缶は、金属板製大型角缶の蓋板に巻き締め部内側に沿って周回するスコアのみが刻設されている。この金属板製大型角缶の蓋板に設けたスコアは、スコア底部の残板厚が蓋板の原板厚の35〜70%であるのが好ましい。   In the metal plate large-sized square can of the present invention, only the score that circulates along the inner side of the tightening portion is engraved on the cover plate of the metal plate large-sized square can. In the score provided on the cover plate of the metal plate large square can, the remaining plate thickness at the bottom of the score is preferably 35 to 70% of the original plate thickness of the cover plate.

上記金属板製大型角缶の開蓋に使用する開蓋工具は、少なくとも金属板製大型角缶の蓋板の対角線長さに等しい長さを有し、かつ、その長手方向にスリットを有する管状巻取体と、該管状巻取体の端部に立設され先端に刃先を有する切込刃と、前記管状巻取体の端部から長手方向に延在するように取り付けられた操作ハンドルとからなる。   The opening tool used for opening the metal plate large-sized square can has a length at least equal to the diagonal length of the cover plate of the metal plate large-sized square can and has a slit in the longitudinal direction thereof. A winding body, a cutting blade standing at the end of the tubular winding body and having a cutting edge at the tip, and an operation handle attached so as to extend in the longitudinal direction from the end of the tubular winding body Consists of.

本発明に係る開蓋工具においては、管状巻取体のスリット幅は3〜7mmであるのが好ましく、切込刃は、当該切込刃の長手方向と直角方向の断面が円弧状をなす短柄状体であって、その先端部に爪状の刃先が構成されているものであるのが好ましい。また、開蓋工具は、管状巻取体の端部に着脱可能に管状巻取体回転用補助ハンドルを備えてなるのが好ましい。   In the opening tool according to the present invention, the slit width of the tubular winding body is preferably 3 to 7 mm, and the cutting blade has a short cross section in the direction perpendicular to the longitudinal direction of the cutting blade. The handle is preferably a handle having a claw-like cutting edge at the tip. Moreover, it is preferable that the opening tool is provided with an auxiliary handle for rotating the tubular winding body so as to be detachable from the end of the tubular winding body.

上記に記載したいずれかの開蓋工具を用いて金属板製大型角缶の開蓋を行うには、金属板製大型角缶の蓋板の隅部スコアに前記開蓋工具の切込刃を当てて蓋板隅部を突き切る段階と、突き切られた蓋板隅部を上方に立ち上げる段階と、立ち上げられた蓋板隅部を管状巻取体のスリットに挟み込んで蓋板を巻き取る段階を順次行う。   In order to open a large square can made of metal plate using any of the opening tools described above, a cutting blade of the open tool is applied to the corner score of the lid plate of the large square plate made of metal plate. The step of hitting the corner of the lid plate with the contact, the step of raising the cut corner of the lid plate upward, and the lid plate corner is wound between the slits of the tubular winder. Take the steps sequentially.

本発明に係る金属板製大型角缶、開蓋工具及びその開蓋工具を使用した開蓋方法によれば、果物などの固形物や流動性の低い流動物を充填した缶をシーリングコンパウンドの粉末状剥離や、食品中への金属片の落下事故を防ぎながら、小さい力でスコアに合致させて確実に蓋板を引き裂いて開蓋させることができる。   According to the metal plate large square can according to the present invention, a lid opening tool and a lid opening method using the lid opening tool, a can filled with a solid material such as fruit or a fluid material with low fluidity is used as a sealing compound powder. The lid plate can be surely torn and opened by matching the score with a small force while preventing the stripping and the accidental fall of the metal piece into the food.

以下、図面を参照して本発明を具体的に説明する。図１は、本発明の１実施例に係る金属板製大型角缶の斜視図である。金属板製大型角缶1は、蓋板3の表面に、巻き締め部2の内側に沿って周回するスコア6のみが刻設されている。本例では、スコア6は蓋板3の対角線に対し対称に設けられ、方形の蓋板3の各辺に平行な直線状部と蓋板隅部4の曲線状の隅部スコア7からなる。本発明では特には補助スコアを設けない。これにより、いずれの蓋板隅部4からでもスコアに合致させた開蓋を容易に行うことができる。また、製缶の自動化、コスト低減を図るうえで有利である。なお、蓋板3には上記開蓋用のスコア6以外に、額だし、取手、あるいは中身取出用キャップ等を設けるのは自由である。   Hereinafter, the present invention will be specifically described with reference to the drawings. FIG. 1 is a perspective view of a metal plate large-sized square can according to one embodiment of the present invention. In the metal plate large-sized square can 1, only the score 6 that circulates along the inside of the tightening portion 2 is engraved on the surface of the lid plate 3. In this example, the score 6 is provided symmetrically with respect to the diagonal line of the lid plate 3, and is composed of a linear portion parallel to each side of the rectangular lid plate 3 and a curved corner score 7 of the lid plate corner 4. In the present invention, no auxiliary score is provided. Thereby, the lid can be easily opened from any corner 4 of the lid plate so as to match the score. It is also advantageous for automating cans and reducing costs. In addition to the score 6 for opening the lid, the lid plate 3 is free to be provided with a forehead, a handle, a content extraction cap, or the like.

本金属板製大型角缶に設けられるスコア6は、スコア底部の残板厚が蓋板の原板厚に対して35〜70%であるのがよい。これにより、缶の開蓋性を損なうことなく、缶が運送や保管中に受ける繰り返し疲労によって破缶するのを防止することができる。例えば、18リットル缶において、スコア底部の残板厚が蓋板の原板厚に対して35〜70%のスコアを設けた缶の場合は、3000kmの自動車輸送において破損することなく、また、開蓋失敗もなかった。スコア6はその横断面の形状が図２（a）に示すような円弧状のもの、または、図２（b）に示すような円弧の先端部が平らなＵ字状のものがよい。   In the score 6 provided in the large square can made of metal plate, the remaining plate thickness at the bottom of the score is preferably 35 to 70% with respect to the original plate thickness of the lid plate. This can prevent the can from being broken due to repeated fatigue experienced during transportation and storage without impairing the openability of the can. For example, in the case of an 18 liter can, a can having a score of 35 to 70% of the remaining plate thickness at the bottom of the score with respect to the original plate thickness of the lid plate is not damaged during automobile transportation of 3000 km. There was no failure. The score 6 preferably has a circular cross-sectional shape as shown in FIG. 2 (a) or a U-shaped one with a flat arc tip as shown in FIG. 2 (b).

上記金属製大型角缶1は、以下に示す開蓋工具10を用いて開蓋するのがよい。図３はその開蓋工具10の平面図であり、図４は正面図であり、図５は、その右側面図である。図３〜５に示すように、開蓋工具10は、管状巻取体11、切込刃20及び操作ハンドル30からなり、管状巻取体11は、少なくとも金属板製大型角缶1の蓋板3の対角線長さに等しい長さを有し、かつ、その長手方向にスリット15が切り込まれている。切込刃20は、管状巻取体11の端部12に立設され長さが20〜30mmの短柄状体であり、先端に爪状の刃先21を有している。操作ハンドル30は柄状をなし、管状巻取体11の端部12から長手方向に延在するように取り付けられている。   The metal large square can 1 is preferably opened using a lid opening tool 10 shown below. 3 is a plan view of the opening tool 10, FIG. 4 is a front view, and FIG. 5 is a right side view thereof. As shown in FIGS. 3 to 5, the lid opening tool 10 includes a tubular winding body 11, a cutting blade 20, and an operation handle 30, and the tubular winding body 11 is at least a lid plate for a large-sized square can 1 made of a metal plate. The slit 15 has a length equal to the diagonal length of 3 and is cut in the longitudinal direction thereof. The cutting blade 20 is a short handle having a length of 20 to 30 mm, standing on the end 12 of the tubular winding body 11, and has a claw-like cutting edge 21 at the tip. The operation handle 30 is shaped like a handle and is attached so as to extend from the end 12 of the tubular winding body 11 in the longitudinal direction.

上記開蓋工具10を用いて図１に示す金属板製大型角缶の開蓋を行うには、図８〜１０に示す手順に従う。先ず金属板製大型角缶1の蓋板3に設けたスコア6のいずれかの隅部スコア7に合致させて切込刃20を突き当て、蓋板隅部4を突き切る（図８）。次いで突き切られた蓋板隅部4に切込刃20の先端をさらに深く差し入れ、切込刃20の管状巻取体11との接合部（Ｐ部）が缶の巻き締め部に当たった状態で管状巻取体11を上方に引き起こす。それにより図９に示すように、Ｐ部をてこの支点として切込刃20が上方に回転し、蓋板隅部4が上方に引き起こされた舌状部5が形成される。管状巻取体11の長さは短柄状の切込刃20より長いので小さな力で該隅部を引き起こすことができる。   In order to open the large square can made of metal plate shown in FIG. 1 using the opening tool 10, the procedure shown in FIGS. First, the cutting blade 20 is abutted against the corner score 7 of any of the scores 6 provided on the lid plate 3 of the metal plate large square can 1 to cut through the lid plate corner 4 (FIG. 8). Next, the tip of the cutting blade 20 is inserted deeper into the cut corner 4 of the cover plate, and the joining portion (P portion) of the cutting blade 20 with the tubular winder 11 is in contact with the can tightening portion. Thus, the tubular winding body 11 is raised upward. As a result, as shown in FIG. 9, the cutting blade 20 rotates upward with the P portion as a fulcrum and a tongue-like portion 5 is formed in which the lid plate corner 4 is raised upward. Since the length of the tubular winding body 11 is longer than the short handle-like cutting blade 20, the corner can be caused with a small force.

このようにして舌状部5を形成した後、開蓋工具10を缶から抜き取り管状巻取体のスリット15のほぼ中央に舌状部5の先端部分を挟み込む。その状態で図１０に示すように操作ハンドル30を回転する。それにより、蓋板3をその対角線に対称に管状巻取体10に巻き取ることができる。このとき、引き裂き作用の行われる位置が工具の位置と近接しているので裂け目をスコア6に合致させ、かつ、小さい力で開蓋することができる。   After the tongue portion 5 is formed in this manner, the opening tool 10 is removed from the can and the tip portion of the tongue portion 5 is sandwiched between the slits 15 of the tubular winder. In this state, the operation handle 30 is rotated as shown in FIG. Thereby, the cover plate 3 can be wound around the tubular winding body 10 symmetrically with respect to the diagonal line. At this time, since the position where the tearing operation is performed is close to the position of the tool, the tear can be matched with the score 6 and the lid can be opened with a small force.

以上本発明に係る開蓋工具10とその工具を使用して金属板製大型角缶1を開蓋する方法について説明したが、本発明の開蓋工具は上記の実施例に限られない。例えば、本発明に係る開蓋工具10において、管状巻取体10は蓋板52の対角線長さに等しい長さを有すれば足りるが、その長さをさらに長くして管状巻取体10の端部を握り部にして蓋板3を巻き取ることができるようにすることができ、それにより開蓋作業時の操作性が良くなる。   Although the lid opening tool 10 according to the present invention and the method for opening the large metal plate square can 1 using the tool have been described above, the lid opening tool of the present invention is not limited to the above-described embodiment. For example, in the opening tool 10 according to the present invention, it is sufficient that the tubular winding body 10 has a length equal to the diagonal length of the lid plate 52, but the length of the tubular winding body 10 is further increased. The end plate can be used as a grip portion so that the cover plate 3 can be wound up, thereby improving the operability during the opening operation.

管状巻取体10はその長手方向にスリット15を有する。スリット15の長さは管状巻取体10の長さの1/2、または、蓋板52の対角線長さの1/2程度以上の長さであるのがよく、管状巻取体10の一端又は両端から切り込まれ管状巻取体10の端部で開口しているのがよい。さらにスリット15は、スリット中央部より開口部のスリット幅が幅広であるのがよい。これにより、舌状部5をスリット15に差し込みやすく、蓋体3を巻き取りやすくなる。また、巻き取った蓋板3を取り外しやすくなる。   The tubular winding body 10 has a slit 15 in its longitudinal direction. The length of the slit 15 may be about 1/2 of the length of the tubular winding body 10 or about 1/2 or more of the diagonal length of the cover plate 52. Alternatively, it may be cut from both ends and open at the end of the tubular winding body 10. Furthermore, it is preferable that the slit 15 has a wider slit width at the opening than at the center of the slit. As a result, the tongue-like portion 5 can be easily inserted into the slit 15, and the lid 3 can be easily wound up. Further, it becomes easy to remove the wound cover plate 3.

スリット15の幅は、3〜7mmであるのがよい。スリットの幅が3mm未満であると、舌状部5の先端部をスリット15に差し込むのが困難になり、7mmを越えると舌状部5をスリット15で挟み込むのが困難になる。なお、管状巻取体10の外径は5〜50mmで肉厚は1〜5mm程度あれば蓋板52を巻き取るのに操作性が良く、実用的な強度も十分である。   The width of the slit 15 is preferably 3 to 7 mm. If the width of the slit is less than 3 mm, it becomes difficult to insert the tip of the tongue-shaped portion 5 into the slit 15, and if it exceeds 7 mm, it becomes difficult to sandwich the tongue-shaped portion 5 with the slit 15. If the outer diameter of the tubular winding body 10 is 5 to 50 mm and the wall thickness is about 1 to 5 mm, the operability is good for winding the lid plate 52 and the practical strength is sufficient.

切込刃20は、管状巻取体の端部12に立設されている。切込刃20は、図４に示すように管状巻取体10と切込刃20のなす角度θ1を直角より3〜15゜鋭角にするのがよく、これにより、切込部20で蓋板隅部4を引き起こし、舌状部5を形成することが容易になる。 The cutting blade 20 is erected on the end 12 of the tubular winding body. In the cutting blade 20, as shown in FIG. 4, the angle θ 1 formed by the tubular winding body 10 and the cutting blade 20 should be 3 to 15 ° acute from the right angle. The plate corner 4 is raised, and the tongue 5 is easily formed.

切込刃20の長さは、20〜30mmがよい。30mmを越えると切込刃20を隅部スコア7に突き当て蓋板隅部4を突き切る場合に、切込刃20が缶内物に触れやすくなり商品品質の低下をきたす。20mmよりも短いと突っ切られた蓋板隅部4を引き起こし、舌状部5を形成するのが困難になる。   The length of the cutting blade 20 is preferably 20 to 30 mm. If it exceeds 30 mm, when the cutting blade 20 is brought into contact with the corner score 7 and the cover plate corner 4 is cut through, the cutting blade 20 easily touches the inside of the can, resulting in a reduction in product quality. If it is shorter than 20 mm, the cut-off lid plate corner 4 is caused, and it becomes difficult to form the tongue 5.

また、切込刃20はその長手方向と直角方向の断面（横断面）が円弧状をなすようにするのがよい。また、その曲率は、隅部スコア7の曲率にほぼ等しくするのがよい。これによって隅部スコア7に合致させて蓋板隅部4を突き切ることができ、また、スリット15に差し込みやすい舌状部5を形成することができる。蓋板隅部4を突き切るには、図５及び６に示すように、切込刃3の先端部に爪状の刃先21を設けるのがよい。なお、切込刃の基部22の側縁部には鋭い刃を形成せず、短柄状体の側面に丸みを持たせた状態のままにしておくのがよい（図６DD断面参照）。これにより、切込刃20の先端が隅部スコア7から少々ずれた位置に突き当てられ、刃先21による切断面が隅部スコア7に合致していなくても、切込刃20を深く差し入れれば側縁部で蓋板隅部4をスコアに合致するように引き裂くことができる。   Further, it is preferable that the cutting blade 20 has a circular cross section (cross section) perpendicular to the longitudinal direction. Further, the curvature should be substantially equal to the curvature of the corner score 7. Accordingly, the corner 4 of the cover plate can be cut through in conformity with the corner score 7, and the tongue 5 that can be easily inserted into the slit 15 can be formed. In order to cut through the cover plate corner 4, it is preferable to provide a claw-shaped cutting edge 21 at the tip of the cutting blade 3 as shown in FIGS. 5 and 6. In addition, it is good not to form a sharp blade in the side edge part of the base 22 of a cutting blade, and to leave the state where the side surface of the short handle was rounded (refer cross section of FIG. 6DD). As a result, the tip of the cutting blade 20 is abutted at a position slightly deviated from the corner score 7, and the cutting blade 20 can be inserted deeply even if the cutting surface by the blade edge 21 does not match the corner score 7. For example, at the side edge, the lid plate corner 4 can be torn to match the score.

操作ハンドル30は、管状巻取体10の端部からその長手方向に延在するように取り付けられていればよい。この操作ハンドル30は、これを回転させて蓋板3を管状巻取体11に巻き取りやすいように握りやすく、回転しやすい形状であるのがよい。例えば、操作ハンドルの横断面は、く字状形状をしているのがよい。   The operation handle 30 may be attached so as to extend from the end of the tubular winding body 10 in the longitudinal direction thereof. The operation handle 30 is preferably configured to be easy to grip and rotate so that the cover plate 3 can be easily wound around the tubular winding body 11 by rotating it. For example, the cross section of the operation handle may have a square shape.

上記実施例において操作ハンドル30は、管状巻取体11の長手方向からθ2（3〜15゜）起き上がった状態で管状巻取体の端部12から延在している（図４）。この場合は、切込刃20で舌状部5を形成するとき操作ハンドル30の先端が缶側面に当たり難くなるからより大きい舌状部5を形成することができる。また、上記実施例では切込刃20を管状巻取体の端部12に設けるとともに、管状巻取体のスリット15を切込刃20の側に設けている。これにより、蓋板隅部4を突き切り、舌状部5を立ち上げ、ついでその先端部をスリット5に挟み込ませる一連の操作を、効率よく進めることができる。なお、操作ハンドルの先端部31を図３に示すように平面形状にすると、操作ハンドル30を形成された舌状部5の下面に差し込みやすくなり、操作ハンドルを利用してより大きい舌状部5を形成することができる。また切込刃20で切り込んだ蓋板隅部4を上方に引き起こし舌状部5を形成するのに主として操作ハンドルの先端部31を使用するようにすれば、切込刃の刃先21の摩滅、変形等が減りその寿命を長くすることができる。 In the above embodiment, the operation handle 30 extends from the end 12 of the tubular winding body in a state where it rises from the longitudinal direction of the tubular winding body 11 by θ 2 (3 to 15 °) (FIG. 4). In this case, when the tongue-shaped portion 5 is formed by the cutting blade 20, the tip of the operation handle 30 is difficult to hit the side surface of the can, so that the larger tongue-shaped portion 5 can be formed. In the above embodiment, the cutting blade 20 is provided at the end 12 of the tubular winding body, and the slit 15 of the tubular winding body is provided on the cutting blade 20 side. As a result, a series of operations for cutting off the lid plate corner 4 and raising the tongue 5 and then sandwiching the tip of the tongue 5 can be efficiently advanced. If the distal end portion 31 of the operation handle is planar as shown in FIG. 3, the operation handle 30 can be easily inserted into the lower surface of the tongue-shaped portion 5, and a larger tongue-shaped portion 5 can be obtained using the operation handle. Can be formed. Further, if the tip end portion 31 of the operation handle is mainly used to form the tongue-shaped portion 5 by causing the lid plate corner 4 cut by the cutting blade 20 to be raised upward, the wear of the cutting edge 21 of the cutting blade, Deformation and the like can be reduced and the life can be extended.

また、図７に示すように管状巻取体の端部13に差し込んで使用する補助ハンドル40を用いれば、開蓋工具10を両手で回転することができるので開蓋するのに便利である。この補助ハンドル40は概略Ｔ字形をしており、スリット15にはまり込む凸条42を有する軸部41と、該軸部41の端部に直交する握り部43を有し、この補助ハンドルは40は握り部43の両端部がそれぞれ反対方向に折り曲げられ、手のひらで握りやすくなっている。なお、補助ハンドルを管状巻取体の端部13及び反対側の端部12の両方に差し込んで、管状巻取体11を両手で回転するようにすれば開蓋がより容易になる。   Further, as shown in FIG. 7, if an auxiliary handle 40 that is inserted into the end portion 13 of the tubular winder is used, the opening tool 10 can be rotated with both hands, which is convenient for opening the lid. The auxiliary handle 40 is generally T-shaped, and has a shaft portion 41 having a ridge 42 that fits into the slit 15 and a grip portion 43 orthogonal to the end portion of the shaft portion 41. Both ends of the grip portion 43 are bent in opposite directions so that it is easy to grip with the palm. The lid can be opened more easily by inserting the auxiliary handle into both the end portion 13 and the opposite end portion 12 of the tubular winding body so that the tubular winding body 11 is rotated with both hands.

さらに、図３に示すように、管状巻取体11には切込刃20を蓋体の隅部スコア7に一致させやすくためのマーキングを設けることができる。マーキングは、切込刃20の位置からスコアの対角を結ぶ長さだけ離間した位置に、例えば溝又はくぼみを設けることによって行うことができる。   Furthermore, as shown in FIG. 3, the tubular winding body 11 can be provided with markings for easily matching the cutting blade 20 with the corner score 7 of the lid. Marking can be performed, for example, by providing a groove or a recess at a position separated from the position of the cutting blade 20 by a length connecting the diagonal of the score.

なお、本開蓋工具10は、開蓋工具のスリット端16が開口しているので、図１０のように開蓋途中で巻取りを中止して矢印Ｓ方向にスライドすれば巻き取った蓋板から容易に抜き出すことができる。また、開蓋工具を抜き出して開蓋を中止した場合であっても、開蓋工具のスリット端16から巻き取った蓋板の舌状部5をスリット15に入れ込んで開蓋を再開することができる。開蓋を途中で中止した場合の巻取り部はその部分を握っても安全な筒状をしており、充填物を取り出す際に取手として利用することができる。   In addition, since the slit end 16 of the opening tool is opened in the opening tool 10, if the winding is stopped in the middle of opening as shown in FIG. Can be easily extracted from In addition, even when the lid opening tool is removed and the lid opening is stopped, the tongue plate portion 5 of the lid plate taken up from the slit end 16 of the lid opening tool is inserted into the slit 15 to resume the lid opening. Can do. When the lid is stopped halfway, the winding part has a safe cylindrical shape even if it is gripped, and can be used as a handle when taking out the filling.

以上、本発明に係る開蓋工具10を、周回するスコア6を有する蓋板3の開蓋に使用する場合について説明したが、この開蓋工具10は上記の蓋板3の開蓋のみならず、隅部スコア7とこれを挟む直線状スコアを有する蓋板の開蓋にも使用することができる。また、丸形形状の缶に使用することもできる。   As described above, the case where the lid opening tool 10 according to the present invention is used to open the lid plate 3 having the circulating score 6 has been described, but the lid opening tool 10 is not limited to the lid lid 3 opening. It can also be used to open a lid plate having a corner score 7 and a linear score sandwiching it. It can also be used for round cans.

本発明に係る金属板製大型角缶の斜視図である。It is a perspective view of the large square can made from a metal plate concerning the present invention. スコアの横断面部の拡大断面図である。It is an expanded sectional view of a transverse section of a score. 本発明に係る開蓋工具の平面図である。It is a top view of the lid opening tool concerning the present invention. 本発明に係る開蓋工具の正面図である。It is a front view of a lid opening tool concerning the present invention. 本発明に係る開蓋工具の右側面図である。It is a right view of the lid opening tool which concerns on this invention. 図５のBB、CC及びDD断面を示す断面図である。It is sectional drawing which shows the BB, CC, and DD cross section of FIG. 補助ハンドルの斜視図である。It is a perspective view of an auxiliary handle. 本発明に係る開蓋工具により蓋板隅部を突っ切る様子を示す斜視図である。It is a perspective view which shows a mode that a lid plate corner is cut through with the opening tool which concerns on this invention. 切り込んだ蓋板隅部を切込刃で立ち上げる様子を示す斜視図である。It is a perspective view which shows a mode that the cut | disconnected lid plate corner is started up with a cutting blade. 操作ハンドルを回転して蓋板を巻き取る様子を示す斜視図である。It is a perspective view which shows a mode that an operation handle is rotated and a cover plate is wound up. 従来の金属製大型角缶の斜視図である。It is a perspective view of the conventional large metal square can. 図１１の缶を従来の開蓋工具を使用して開蓋する様子を示す斜視図である。It is a perspective view which shows a mode that the can of FIG. 11 is opened using the conventional opening tool. 図１１の缶を従来の他の開蓋工具を使用して開蓋する様子を示す斜視図であるIt is a perspective view which shows a mode that the can of FIG. 11 is opened using the other conventional opening tool.

符号の説明Explanation of symbols

1 金属板製大型角缶
2 巻き締め部
3 蓋板
4 蓋板隅部
5 舌状部
6 スコア
7 隅部スコア
8 補助スコア
10 開蓋工具
11 管状巻取体
12 端部（操作ハンドル側）
13 端部（操作ハンドルと反対側）
15 スリット
16 スリット端
18 マーキング
20 切込刃
21 刃先
22 基部
30 操作ハンドル
31 先端部
40 補助ハンドル
41 軸部
42 凸条部
43 握り部
1 Large square can made of metal plate
2 Tightening part
3 Cover plate
4 Corner of lid plate
5 Tongue
6 Score
7 Corner score
8 Auxiliary score
10 Opening tool
11 Tubular winder
12 End (control handle side)
13 End (opposite side of operation handle)
15 slit
16 Slit end
18 Marking
20 cutting edge
21 cutting edge
22 Base
30 Operation handle
31 Tip
40 Auxiliary handle
41 Shaft
42 ridges
43 Grip

Claims (7)

金属板製大型角缶の蓋板に巻き締め部内側に沿って周回するスコアのみが刻設されていることを特徴とする金属板製大型角缶。   A metal plate large-sized square can characterized in that only a score that circulates along the inside of the tightening portion is engraved on the cover plate of the metal plate large-sized square can. スコアの底部の残板厚が蓋板の原板厚の35〜70%であることを特徴とする請求項１に記載の金属板製大型角缶。   The metal plate large-sized square can according to claim 1, wherein the remaining plate thickness at the bottom of the score is 35 to 70% of the original plate thickness of the lid plate. 少なくとも金属板製大型角缶の蓋板の対角線長さに等しい長さを有し、かつ、その長手方向にスリットを有する管状巻取体と、
該管状巻取体の端部に立設され先端に刃先を有する切込刃と、
前記管状巻取体の端部から長手方向に延在するように取り付けられた操作ハンドルとからなることを特徴とする金属板製大型角缶の開蓋工具。 A tubular winding body having at least a length equal to the diagonal length of the cover plate of the large square can made of metal plate, and having a slit in its longitudinal direction;
A cutting blade standing at the end of the tubular winding body and having a cutting edge at the tip;
An opening tool for a metal plate large-sized square can comprising an operation handle attached so as to extend in a longitudinal direction from an end of the tubular winding body. 管状巻取体のスリット幅は3〜7mmであることを特徴とする請求項３に記載の金属板製大型角缶の開蓋工具。   4. The opening tool for a large square can made of metal plate according to claim 3, wherein the slit width of the tubular winding body is 3 to 7 mm. 切込刃は、当該切込刃の長手方向と直角方向の断面が円弧状をなす短柄状体であって、その先端部に爪状の刃先が構成されているものであることを特徴とする請求項３又は４に記載の金属板製大型角缶の開蓋工具。   The cutting blade is a short handle having a circular cross section in a direction perpendicular to the longitudinal direction of the cutting blade, and a claw-shaped cutting edge is formed at the tip of the cutting blade. The opening tool for a large square can made of metal plate according to claim 3 or 4. 管状巻取体の端部に着脱可能に管状巻取体回転用補助ハンドルを備えてなる請求項３〜５のいずれかに記載の金属板製大型角缶の開蓋工具。   The opening tool for a metal plate large-sized square can according to any one of claims 3 to 5, further comprising an auxiliary handle for rotating the tubular winding body, which is detachably attached to an end of the tubular winding body. 請求項３〜６のいずれかに記載した開蓋工具を用いて金属板製大型角缶の開蓋を行うに当たって、金属板製大型角缶の蓋板の隅部スコアに前記開蓋工具の切込刃を当てて蓋板隅部を突き切る段階と、突き切られた蓋板隅部を上方に立ち上げる段階と、立ち上げられた蓋板隅部を管状巻取体のスリットに挟み込んで蓋板を巻き取る段階と、からなる金属板製大型角缶の開蓋方法。







In opening a large-sized square can made of metal plate using the opening tool according to any one of claims 3 to 6, the opening tool is cut into the corner score of the lid of the large-sized square can made of metal plate. Applying the cutting blade to pierce the corner of the lid plate, raising the pierced lid plate corner upward, and sandwiching the raised lid plate corner between the slits of the tubular winder A method of opening a large square can made of a metal plate, comprising winding a plate.







JP2003319607A 2003-09-11 2003-09-11 Large-sized angular can made of metal sheet, lid opening tool, and lid opening method using the tool Pending JP2005082230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003319607A JP2005082230A (en) 2003-09-11 2003-09-11 Large-sized angular can made of metal sheet, lid opening tool, and lid opening method using the tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003319607A JP2005082230A (en) 2003-09-11 2003-09-11 Large-sized angular can made of metal sheet, lid opening tool, and lid opening method using the tool

Publications (1)

Publication Number Publication Date
JP2005082230A true JP2005082230A (en) 2005-03-31

Family

ID=34418509

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Application Number Title Priority Date Filing Date
JP2003319607A Pending JP2005082230A (en) 2003-09-11 2003-09-11 Large-sized angular can made of metal sheet, lid opening tool, and lid opening method using the tool

Country Status (1)

Country Link
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