JP6331171B1

JP6331171B1 - Large metal square can easily opened

Info

Publication number: JP6331171B1
Application number: JP2017031537A
Authority: JP
Inventors: 利治関; 誠岡本
Original assignee: 株式会社ヒロハマ
Priority date: 2017-02-07
Filing date: 2017-02-07
Publication date: 2018-05-30
Anticipated expiration: 2037-02-07
Also published as: JP2018127278A

Abstract

【課題】開蓋に道具が不要で、開蓋用スコアに沿って容易に且つ確実に缶天板又は缶地板あるいはその双方を大きく切り開くことができる開蓋性に優れた大型金属製角缶を提供する。【解決手段】大型金属製角缶１の缶天板１０又は缶地板３０の少なくとも一方には略四角環状に開蓋用スコア１３が刻設されるとともに、この開蓋用スコア１３の４辺もしくは３辺が巻締め部の内側近傍に位置し、開蓋用スコア１３の１辺より若干短い１辺を有する平板取手４０が複数個のリベット部１１で固着される。平板取手４０は、先端に角形状の押圧部４２を複数個備え、その押圧部４２が直線状の開蓋用スコア１３の若干内側に沿うようになっている。平板取手４０を引き起こすと、複数個の押圧部４２によって取手先端側に位置する開蓋用スコア１３の１辺がいっぺんに切り欠かれる。続けて、残りの開蓋月スコア１３に沿って破断が進行するように平板取手４０を引っ張ることで、大型金属製角缶が開蓋される。【選択図】図４PROBLEM TO BE SOLVED: To provide a large metal square can excellent in openability that requires no tool for opening, and can easily and surely open a can top plate or a can base plate or both along a score for opening. provide. SOLUTION: At least one of a can top plate 10 or a can base plate 30 of a large metal square can 1 is provided with a score 13 for opening the lid in a substantially square ring shape. A flat plate handle 40 having three sides located in the vicinity of the inside of the tightening portion and slightly shorter than one side of the opening-opening score 13 is fixed by the plurality of rivets 11. The flat plate handle 40 is provided with a plurality of square-shaped pressing portions 42 at the tip, and the pressing portions 42 are slightly along the inside of the linear lid opening score 13. When the flat plate handle 40 is caused, one side of the opening-opening score 13 located on the leading end side of the handle is cut out at a time by the plurality of pressing portions 42. Subsequently, the large metal square can is opened by pulling the flat plate handle 40 so that the breakage proceeds along the remaining opening month score 13. [Selection] Figure 4

Description

本発明は、食品、塗料、化学品、燃料油などの運搬や保管に使われる大型金属製角缶に係り、特に缶天板又は缶地板の少なくとも一方に開蓋用スコアを設けて開蓋性を向上させた大型金属製角缶に関するものである。 The present invention relates to a large metal square can used for transportation and storage of foods, paints, chemicals, fuel oil, etc., and in particular, at least one of a can top plate or a can base plate is provided with a lid opening score to open the lid. The present invention relates to a large-sized metal square can that has been improved.

１８リットル、９リットル缶および４リットル缶に代表される種々のサイズの大型金属製角缶は、金属製板でできた缶天板、缶地板および缶胴で構成されており、強度や密封性、遮光性、耐熱性、耐水性、四角形状による輸送効率性などに優れていることから、食品や塗料、化学品、燃料油などの容器として汎用されている。通常は缶の天板の２辺を挟む角の近傍に抽出口が設けられていることが多く、内容物はこの抽出口から注ぎ出す。 Large metal square cans of various sizes typified by 18 liter, 9 liter cans and 4 liter cans are composed of a can top plate, a can base plate and a can body made of a metal plate. It is widely used as a container for foods, paints, chemicals, fuel oils, etc. because of its excellent light-shielding properties, heat resistance, water resistance, and rectangular transportation efficiency. Usually, an extraction port is often provided in the vicinity of the corner between two sides of the top plate of the can, and the contents are poured out from this extraction port.

しかし、内容物が固形物や流動性の悪いものの場合は、缶切りカッターを使用するなどして缶天板を切り取って使用することが多い。塗料関係でも、作業効率を良くするために、缶天板を切り取って使用することが多い。このように大型金属製角缶をフルオープンする使用方法が定着しているが、缶天板を取り除くのに手間がかかることや、缶天板を切り取る際に生じた金属片が内容物に混入するおそれがあるなどの問題があった。 However, when the contents are solid or poorly fluid, the can top plate is often cut and used, such as by using a can opener cutter. Even in the paint industry, in order to improve work efficiency, the can top plate is often cut out and used. In this way, the use method of fully opening a large metal square can has become established, but it takes time to remove the can top plate, and metal pieces generated when cutting the can top plate are mixed into the contents There was a problem such as that

これを解決するために、特公平３−３３５８１号公報では、大型金属製角缶の缶天板の巻締め部に沿って開蓋用スコアを刻設することで、缶天板を切り取り易くする方法が提案されている。この提案では、先の尖った先端部を有するペンチ様の道具を、缶天板の２辺を挟む１隅の近傍にある開蓋用スコアに突き刺して一部を破断した後、缶天板の一部を挟んで、缶天板の対角線上の方向に引き上げるようにして、開蓋用スコアにそって引き裂き、開蓋するようになっている。 In order to solve this, Japanese Patent Publication No. 3-33581 discloses that a can top plate can be easily cut off by engraving a score for opening the lid along the winding fastening portion of the top plate of a large metal square can. A method has been proposed. In this proposal, a pliers-like tool having a pointed tip is stabbed into a score for opening the lid in the vicinity of one corner sandwiching two sides of the can top plate, and a part thereof is broken. A part is sandwiched and pulled up in the diagonal direction of the can top plate, and then the lid is torn and opened along the opening score.

また、大型金属製角缶以外のフルオープン可能な蓋としては、食品の缶詰などに汎用されるイージーオープン缶が知られている。これは、缶蓋のパネル部に固着された開蓋操作用のタブを使用して開蓋するもので、パネル部の巻締め内側近傍には環状の開蓋用スコアが刻設されており、パネル部にリベット部で固着されているタブに指１本を引っ掛け、引き起こすことで、指を引っ掛けた箇所を力点、リベット部を支点、タブの先端を作用点とするてこの作用が働き、タブの先端が曲線状になっている開蓋用スコアに入り込み、初期破断される。続けてタブを上方に引っ張り上げることで開蓋用スコアの破断が進行し、開蓋されるようになっている。 Moreover, as a lid that can be fully opened other than a large metal square can, an easy open can that is widely used for food canning is known. This is to open using the tab for opening operation fixed to the panel part of the can lid, and an annular opening score is engraved in the vicinity of the inner side of the winding of the panel part, By hooking one finger on the tab fixed to the panel part with the rivet part and triggering it, this action works with the point where the finger is hooked as the power point, the rivet part as the fulcrum, and the tip of the tab as the action point. It enters into the score for opening the lid, which has a curved tip, and is initially broken. By continuing to pull the tab upward, the opening score breaks and the lid is opened.

特公平３−３３５８１号公報Japanese Examined Patent Publication No. 3-33581

しかし、特許文献１の方法では、缶天板の切り始めの破断と切り開きに専用の道具が必要であることや、缶天板の引き上げに相当の力が必要となること、更には大型金属製角缶のように開蓋用スコアが長くなる場合は、缶天板を引き上げる方向と開蓋用スコアの方向が一致していないことにより、缶天板が開蓋用スコアから外れたラインで切り裂かれてしまうことがある問題があった。 However, in the method of Patent Document 1, a dedicated tool is required for breaking and opening the can top plate, and a considerable amount of force is required for lifting the can top plate. If the score for opening the lid is long like a square can, the direction in which the top of the can is pulled up does not match the direction of the score for opening, so the can top is cut off along the line that is off the score for opening. There was a problem that could be lost.

また、イージーオープン缶のタブに関しては、これを大型金属製角缶に採用しようとすると、初期破断箇所がタブの先端部一カ所に限られるため、スムーズな開蓋のためには初期破断する開蓋用スコアが曲線状である必要がある。そのため、大型金属製角缶の缶天板又は缶地板の少なくとも一方の角の近傍にある開蓋用スコアが曲線状になっている場所にタブを設ければならないため、前述したように、缶天板又は缶地板の少なくとも一方を切り開く際に、タブを引っ張り上げる方向と開蓋用スコアの方向が一致しないことによる不都合が生じる可能性があった。 As for the tabs of easy-open cans, if this is adopted in a large metal square can, the initial breakage point is limited to a single point at the tip of the tab. The lid score must be curved. Therefore, a tab must be provided where the opening score near the corner of at least one corner of the can of the large metal square can or the can base plate is curved. When cutting at least one of the top plate or the can base plate, there is a possibility that inconvenience may occur due to the direction in which the tab is pulled up does not coincide with the direction of the opening score.

したがって、本発明の目的は、開蓋に道具が不要で、開蓋用スコアに沿って容易に且つ確実に、缶天板又は地板あるいはその双方を大きく切り開くことができる開蓋性に優れた大型金属製角缶を提供することにある。 Therefore, an object of the present invention is that a large tool excellent in openability that does not require a tool for opening the lid and can easily and surely open the can top plate or the base plate or both along the opening score. The object is to provide a metal square can.

前記目的を達成するために、本発明による開蓋容易な大型金属製角缶は下記の特徴を有する。本発明の特徴は、缶天板又は缶地板の少なくとも一方に略四角環状に開蓋用スコアが刻設されている大型金属製角缶であって、開蓋用スコアの４辺もしくは３辺が巻締め部の内側近傍に位置し、開蓋用スコアの１辺より若干短い１辺を有する開蓋操作のための平板取手が、この開蓋用スコアの１辺の内側に沿って、かつ平板取手の１辺がこの開蓋用スコアの１辺と平行になる向きで、複数個のリベット部で固着されるとともに、該取手の開蓋用スコアに近接する箇所には、直線状の開蓋用スコアの若干内側に沿うように開蓋用スコア初期破断用の角形状の押圧部を複数個備えていることにより、直線状の開蓋用スコアの１辺をいっぺんに切り欠くことができることにある。In order to achieve the above object, the large metal square can easily opened according to the present invention has the following characteristics. A feature of the present invention is a large metal square can in which a score for opening is engraved in a substantially square ring shape on at least one of a can top plate or a can base plate, and four or three sides of the opening score are A flat plate handle for opening operation, which is located in the vicinity of the inside of the tightening portion and has one side slightly shorter than one side of the opening score, is formed along the inner side of one side of the opening score. One side of the handle is fixed with a plurality of rivets in a direction parallel to one side of the opening score, and a linear opening is provided at a position close to the opening score of the handle. By providing a plurality of square-shaped pressing portions for initial breaking of the opening lid score so as to be slightly along the inner side of the opening score, one side of the straight opening opening score can be cut out at a time. .

このようにしたため、開蓋の際に平板取手を引き起こすと、平板取手に指をかけた箇所を力点、リベット部を支点、平板取手の押圧部を作用点とするてこの作用により、平板取手の押圧部が、直線状の開蓋用スコアに押し込まれ、開蓋用スコア上の複数の箇所が初期破断される。平板取手を更に引き起こすことで、開蓋用スコアに沿って破断が進行し、隣り合う押圧部による破断が繋がり、平板取手の押圧部側に位置する直線状の開蓋用スコアの１辺をいっぺんに切り欠くことができる。 For this reason, when the flat plate handle is caused when the lid is opened, the lever of the flat plate handle is used as a force point, the rivet portion is a fulcrum, and the pressing portion of the flat plate handle is the action point. The pressing portion is pushed into the linear opening score, and a plurality of locations on the opening score are initially broken. By further causing the flat plate handle, the breakage progresses along the opening score, the breakage by the adjacent pressing portion is connected, and one side of the linear opening score located on the pressing portion side of the flat plate handle all at once. Can be cut out.

リベット部が１カ所のみであると、大型金属製角缶に設けた直線状の開蓋用スコアの１辺をいっぺんに切り欠いたときに、強い負荷がかかりリベット部が破断してしまうが、本発明ではリベット部を複数個設けており、負荷が分散されるため、開蓋の際にリベット部が破断することはない。 If there is only one rivet part, when one side of the straight opening score provided on the large metal square can is cut out all at once, a strong load will be applied and the rivet part will break. In the present invention, a plurality of rivet portions are provided, and the load is distributed. Therefore, the rivet portion does not break when the lid is opened.

さらに、平板取手が開蓋用スコアの１辺に沿って取り付けられているため、缶天板又は缶地板あるいはこの双方を切り開く際に、平板取手を引き上げる方向に対し、取手両脇に位置する開蓋用スコアの方向が一致しているため、開蓋用スコアに沿って確実に切り開くことができるようになる。 Further, since the flat plate handle is attached along one side of the score for opening the lid, when opening the can top plate or the can base plate or both of them, the opening located on both sides of the handle with respect to the direction in which the flat plate handle is pulled up. Since the direction of the lid score is the same, the lid score can be reliably cut along the lid opening score.

本発明の大型金属製角缶によれば、開蓋に道具が不要で、開蓋用スコアに沿って容易に且つ確実に缶天板又は缶地板あるいはその双方を大きく切り開くことができる。 According to the large metal square can of the present invention, no tool is required for opening the lid, and the can top plate and the can base plate or both can be easily opened along the opening score.

本発明に係る大型金属製角缶の斜視図である。（第１実施形態） 1 is a perspective view of a large metal square can according to the present invention. (First embodiment) 缶天板に平板取手が固着された大型金属製角缶の平面図である。（第１実施形態） It is a top view of the large metal square can which the flat plate handle was fixed to the can top plate. (First embodiment) 図２のＡ−Ａ線に沿った大型金属製角缶の一部断面図である。（第１実施形態） FIG. 3 is a partial cross-sectional view of a large metal square can taken along line AA in FIG. 2. (First embodiment) 缶天板の開蓋用スコアが初期破断される様子を示す斜視図である。（第１実施形態） It is a perspective view which shows a mode that the score for lid opening of a can top plate is initially fractured | ruptured. (First embodiment) 図４の工程の後、取手を引き上げて開蓋する様子を示した斜視図である。（第１実施形態） It is the perspective view which showed a mode that the handle was pulled up and opened after the process of FIG. (First embodiment) 缶天板に平板取手が固着された大型金属製角缶の平面図である。（第２実施形態） It is a top view of the large metal square can which the flat plate handle was fixed to the can top plate. (Second Embodiment) 缶天板に平板取手が固着された大型金属製角缶の平面図である。（第３実施形態） It is a top view of the large metal square can which the flat plate handle was fixed to the can top plate. (Third embodiment)

以下、本発明にかかる第１実施形態について、図を用いて説明する。はじめに、第１実施形態における大型金属製角缶の構成について図１を用いて説明する。本発明に係る大型金属製角缶１は、缶天板１０、缶胴２０、缶地板３０および平板取手４０を備える。 Hereinafter, a first embodiment according to the present invention will be described with reference to the drawings. First, the structure of the large metal square can in 1st Embodiment is demonstrated using FIG. A large metal square can 1 according to the present invention includes a can top plate 10, a can body 20, a can base plate 30, and a flat plate handle 40.

缶胴２０は金属製板材が角筒形に成形され、両側縁部を溶接されたもので、この上下両端の開口周縁に缶天板１０と缶地板３０が二重巻締めによって取り付けられている。缶天板１０の上端巻締め部１２および缶地板３０の下端巻締め部３１にはシーリングコンパウンドが充填されており、これが大型金属製角缶１の気密性を保持している。缶天板１０には、開蓋操作のための平板取手４０が、缶天板１０に一体的に形成された５個のリベット部１１でのリベット留めによって固着されている。リベット部１１が１個ではなく複数個設けてあることで、開蓋工程で開蓋用スコア１３の１辺がいっぺんに切り欠かれる際のリベット部にかかる負荷が分散され、リベット部が破断される心配がなくなる。 The can body 20 is formed by forming a metal plate into a rectangular tube shape and welding both side edges, and the can top plate 10 and the can base plate 30 are attached to the peripheral edges of the upper and lower ends by double winding. . The upper end winding part 12 of the can top plate 10 and the lower end winding part 31 of the can base plate 30 are filled with a sealing compound, which maintains the airtightness of the large metal square can 1. A flat plate handle 40 for opening the lid is fixed to the can top plate 10 by riveting with five rivet portions 11 formed integrally with the can top plate 10. By providing a plurality of rivet portions 11 instead of one, the load applied to the rivet portion when one side of the opening score 13 is notched all together in the opening step is dispersed, and the rivet portion is broken. No worries.

次に、缶天板１０について図２および図３を用いて説明する。缶天板１０の上端巻締め部１２の内側近傍には、全周に亘って破断案内溝である開蓋用スコア１３が刻設されている。この開蓋用スコア１３は上端巻締め部１２に平行に刻設されており、４辺は直線で、隣り合う２辺の直線を繋ぐ４隅は曲線を呈する。これにより、開蓋の際に、缶天板１０を開蓋用スコア１３に沿って完全にかつスムーズに切り開くことができる。開蓋用スコア１３の断面形状は、方形である。また、開蓋用スコア１３の１辺の内側には上方に突出するリベット部１１を５個有する。 Next, the can top plate 10 will be described with reference to FIGS. 2 and 3. In the vicinity of the inside of the upper end tightening portion 12 of the can top plate 10, a lid opening score 13 that is a breaking guide groove is engraved over the entire circumference. The lid opening score 13 is engraved in parallel with the upper end tightening portion 12. The four sides are straight lines, and the four corners connecting the two adjacent straight lines are curved. Thereby, the can top plate 10 can be completely and smoothly opened along the opening score 13 when the lid is opened. The cross-sectional shape of the score 13 for opening the lid is a square. In addition, five rivet portions 11 projecting upward are provided inside one side of the score 13 for opening the lid.

次に、平板取手４０について図２および図３を用いて説明する。開蓋操作用の平板取手４０は略長方形を呈しており、その長辺は開蓋用スコア１３の１辺より若干短い長辺を有する。この平板取手４０の一方の長辺には開蓋用スコア初期破断用の角形状の押圧部４２が５個設けられており、この押圧部４２には補強のためのＶ字状の凹みが付けられている。もう一方の長辺の近傍には、開蓋の際に指を通すための円形の指掛け部４１が設けられている。 Next, the flat plate handle 40 will be described with reference to FIGS. The flat plate handle 40 for opening operation has a substantially rectangular shape, and its long side has a long side slightly shorter than one side of the opening opening score 13. On one long side of the flat plate handle 40, there are provided five square-shaped pressing portions 42 for initial breaking of the opening lid. The pressing portions 42 are provided with V-shaped dents for reinforcement. It has been. In the vicinity of the other long side, a circular finger-hanging portion 41 is provided for passing a finger when the lid is opened .

以下、平板取手４０の押圧部４２が設けられている側を取手の先端、指掛け部４１が設けられている側の長辺を取手の後端と表記する。平板取手４０はリベット部１１によって位置決めされ、このリベット部１１の上端を押し潰すことで缶天板１０の開蓋用スコア１３の内側に固着されており、平板取手４０の先端の押圧部４２からリベット部１１までの距離は、リベット部１１から平板取手４０の後端までの距離よりも大幅に短くしてある。そうすることで、開蓋の際、平板取手４０の後端に指を引っ掛け引き起こすと、指を引っ掛けた箇所を力点、リベット部１１を支点、押圧部４２を作用点とするてこの作用で、平板取手４０の先端の押圧部４２が大きな力で押し下げられることになる。 Hereinafter, the side of the flat plate handle 40 on which the pressing portion 42 is provided is referred to as the front end of the handle, and the long side on the side of which the finger hanging portion 41 is provided is referred to as the rear end of the handle. The flat plate handle 40 is positioned by the rivet portion 11, and is fixed to the inside of the lid opening score 13 of the can top plate 10 by crushing the upper end of the rivet portion 11, and from the pressing portion 42 at the tip of the flat plate handle 40. The distance to the rivet portion 11 is significantly shorter than the distance from the rivet portion 11 to the rear end of the flat plate handle 40. By doing so, when opening the lid, hooking a finger to the rear end of the flat plate handle 40 causes the point where the finger is hooked, the rivet part 11 as a fulcrum, and the pressing part 42 as an action point. The pressing portion 42 at the tip of the flat plate handle 40 is pushed down with a large force.

平板取手４０が缶天板１０に固着された際、押圧部４２の先端が開蓋用スコア１３の若干内側に沿うようになっている。このとき、平板取手４０は缶天板１０の開蓋用スコア１３の１辺に沿って取り付けられているため、缶天板１０を切り開く際に、平板取手４０を取手後端方向に引き上げる方向と取手両脇に位置する開蓋用スコア１３の方向が一致し、開蓋用スコア１３にそって確実に缶天板１０を切り開くことができる。 When the flat plate handle 40 is fixed to the can top plate 10, the tip of the pressing portion 42 is slightly along the opening score 13. At this time, since the flat plate handle 40 is attached along one side of the lid opening score 13 of the can top plate 10, when the can top plate 10 is cut open, the flat plate handle 40 is pulled up toward the rear end of the handle. The direction of the lid opening score 13 located on both sides of the handle coincides, and the can top plate 10 can be reliably cut along the lid opening score 13.

平板取手４０には短手方向に複数本の補強用ビード４３が形成されており、短手方向の剛性が高められている。平板取手４０の先端の押圧部４２を除く外周縁にはカール成形が施されており、これにより剛性が高められている。また、平板取手４０の高さは、缶の巻締めの高さより低くしており、缶を積み重ねる際の障害とならないようにするのが好ましい。 The flat plate handle 40 is formed with a plurality of reinforcing beads 43 in the short direction, and the rigidity in the short direction is enhanced. The outer peripheral edge excluding the pressing portion 42 at the tip of the flat plate handle 40 is subjected to curl molding, thereby increasing the rigidity. Further, the height of the flat plate handle 40 is preferably lower than the height of the can winding, so that it does not become an obstacle when stacking the cans.

以下、本発明による大型金属製角缶を開蓋する手順について、図４および図５を用いて説明する。まず、平板取手４０の後端に指を引っ掛け、上方に引き上げる（図４参照）。すると、指を引っ掛けた箇所を力点、リベット部１１を支点、押圧部４２を作用点とするてこの作用により、押圧部４２が開蓋用スコア１３に押し込まれ、開蓋用スコア１３上の押圧部４２に接触した５箇所が初期破断される。平板取手４０を更に引き起こすことで、隣り合う押圧部４２による破断が繋がり、取手先端側に位置する開蓋用スコア１３の直線状の１辺がいっぺんに切り欠かれる。続けて、平板取手４０の指掛け部４１に指を通し、缶天板１０ごと取手後端方向に引き上げる（図５参照）。すると、平板取手４０の両端に位置する開蓋用スコア１３に沿って破断が進行する。最後に、平板取手４０の後端側に位置する開蓋用スコア１３が片端から破断するような方向にねじると、開蓋用スコア１３に沿って破断が進行し、缶天板１０が完全に大型金属製角缶１から切り離される。 Hereinafter, the procedure for opening the large metal square can according to the present invention will be described with reference to FIGS. First, a finger is hooked on the rear end of the flat plate handle 40 and pulled upward (see FIG. 4). Then, the pressing part 42 is pushed into the opening score 13 by the lever action, with the point where the finger is hooked as the power point, the rivet part 11 as the fulcrum, and the pressing part 42 as the action point. The five places that contact the portion 42 are initially broken. By further causing the flat plate handle 40, breakage by the adjacent pressing portions 42 is connected, and one straight side of the opening score 13 located on the leading end side of the handle is cut out all together. Subsequently, the finger is passed through the finger-holding portion 41 of the flat plate handle 40, and the can top plate 10 is pulled up toward the rear end of the handle (see FIG. 5). Then, the breakage proceeds along the lid opening score 13 positioned at both ends of the flat plate handle 40. Finally, when the lid opening score 13 located on the rear end side of the flat plate handle 40 is twisted in such a direction as to break from one end, the breaking progresses along the lid opening score 13, and the can top plate 10 is completely Separated from the large metal square can 1.

以上、本発明の第１実施形態について説明したが、本発明の適用範囲はこれに限られるものではない。例えば、第１実施形態では、缶天板１０に対して開蓋用スコア１３を刻設し、平板取手４０を固着しているが、これらを缶天板１０でなく缶地板３０に対しても行うことができるし、あるいはその双方に行うこともできる。開蓋用スコア１３の断面を方形としているが、Ｕ形、Ｖ形等自由である。平板取手４０の外周縁に施されたカール成形も、必要に応じて付ければよい。平板取手４０の大きさは、開蓋用スコア１３の１辺より若干短い１辺を携えていればよい。 The first embodiment of the present invention has been described above, but the scope of the present invention is not limited to this. For example, in the first embodiment, the opening lid score 13 is engraved on the can top plate 10 and the flat plate handle 40 is fixed. Can be done, or both. Although the cross section of the score 13 for opening the lid is a square, it can be any shape such as a U shape or a V shape. The curl molding applied to the outer peripheral edge of the flat plate handle 40 may be applied as necessary. The size of the flat plate handle 40 only needs to have one side that is slightly shorter than one side of the lid opening score 13.

また、図６に示した第２実施形態のように持ち運ぶための手環５０を取り付けることもできる。その場合は、手環５０の厚さを缶の巻締めの高さより薄くし、缶を積み重ねる際の障害とならないようにするのが好ましい。また、平板取手４０の押圧部４２に付けられている補強のためのＶ字状の凹みや、補強用ビード４３も必要に応じて付ければよく、図６のようにこれらがない状態でも、開蓋作業が行えれば問題ない。平板取手４０の形状は、開蓋用スコア１３の１辺より若干短い１辺を携えていれば、その形状に制限はないため、例えば図６のように半月状にしてもよい。平板取手４０の指掛け部４１は、必要に応じて設ければよく、開蓋作業が滞りなく行えれば、孔の形状や個数に制限はないため、例えば図６のように指掛け部４１の形状が略方形で、その個数が１つであっても問題ない。平板取手４０の先端の角形状の押圧部４２の個数は５個に限定されるものではなく、２個以上でかつ、開蓋の際に押圧部４２によって取手先端側に位置する直線状の開蓋用スコア１３をいっぺんに切り欠くことができ、その後の開蓋作業に支障をきたさなければ、個数に特に制限はなく、例えば図６のように４個にしても問題はない。同様に、リベット部１１の個数も５個に限定されるものではなく、複数個でかつ、開蓋によってリベット部が破断されない数であればよく、例えば図６のように７個にしても問題ない。したがって、押圧部は必ずしもリベット部の近傍に位置する必要はなく、図７に示した第３実施形態のように、押圧部の数がリベットの数より多くても良い。また、開蓋用スコア１３を設ける範囲は、本発明によって天板を開蓋する範囲とすればよく、充填物の性状やその取り出し方に応じて決めればよいため、例えば図６のように缶天板１０の面積の半分より少し狭くしても問題ない。Moreover, the hand ring 50 for carrying like the 2nd Embodiment shown in FIG. 6 can also be attached. In that case, it is preferable to make the thickness of the hand ring 50 thinner than the height of the can winding so as not to obstruct the stacking of the cans. Further, a V-shaped dent for reinforcement attached to the pressing portion 42 of the flat plate handle 40 and a reinforcing bead 43 may be added as necessary. Even if these are not present as shown in FIG. There is no problem if the lid can be operated. The shape of the flat plate handle 40 is not limited as long as it has one side that is slightly shorter than one side of the opening lid score 13, and may have a half-moon shape as shown in FIG. 6, for example. The finger grip portion 41 of the flat plate handle 40 may be provided as necessary. If the opening operation can be performed without any delay, the shape and number of the holes are not limited. For example, the shape of the finger grip portion 41 as shown in FIG. There is no problem even if is approximately square and the number is one. The number of the square-shaped pressing portions 42 at the tip of the flat plate handle 40 is not limited to five, but two or more, and a linear opening located on the leading end side of the handle by the pressing portion 42 when the lid is opened. If the lid score 13 can be cut out all at once, and the subsequent opening operation is not hindered, the number is not particularly limited. For example, as shown in FIG. Similarly, the number of rivet portions 11 is not limited to five as long as it is a plural number and the number of rivet portions is not broken by opening the lid. For example, the number of rivet portions 11 may be seven as shown in FIG. Absent. Therefore, the pressing portion does not necessarily have to be positioned in the vicinity of the rivet portion, and the number of pressing portions may be larger than the number of rivets as in the third embodiment shown in FIG. In addition, the range for providing the opening score 13 may be the range for opening the top plate according to the present invention, and may be determined according to the properties of the filling and how to remove it. There is no problem even if it is slightly smaller than half of the area of the top plate 10.

１大型金属製角缶
１０缶天板
１１リベット部
１２上端巻締め部
１３開蓋用スコア
２０缶胴
３０缶地板
３１下端巻締め部
４０平板取手
４１指掛け部
４２押圧部
４３補強用ビード
５０手環DESCRIPTION OF SYMBOLS 1 Large metal square can 10 Can top plate 11 Rivet part 12 Upper end tightening part 13 Opening score 20 Can trunk 30 Can base plate 31 Lower end tightening part 40 Flat plate handle 41 Finger hook part 42 Press part 43 Reinforcement bead 50 Hand ring

Claims

In a large metal square can in which the opening score is engraved in a substantially square ring shape on at least one of the can top plate or the can base plate, the 4 or 3 sides of the opening score are located in the vicinity of the inside of the tightening portion. And a flat plate handle for opening operation having one side slightly shorter than one side of the opening score is along the inside of one side of the opening score, and one side of the flat plate handle is this opening lid. It is fixed with a plurality of rivets in a direction parallel to one side of the score for use, and is located along the inner side of the straight score for opening the lid at a location close to the score for opening the handle. As described above, a plurality of square-shaped pressing parts for initial breaking score for opening the lid can be cut out at one side of the straight opening score, so that the large opening is easy. Metal square can