JP5007810B2 - Opening device for packaging containers - Google Patents

Opening device for packaging containers Download PDF

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JP5007810B2
JP5007810B2 JP2007139941A JP2007139941A JP5007810B2 JP 5007810 B2 JP5007810 B2 JP 5007810B2 JP 2007139941 A JP2007139941 A JP 2007139941A JP 2007139941 A JP2007139941 A JP 2007139941A JP 5007810 B2 JP5007810 B2 JP 5007810B2
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lid
opening
leveling
edge
center line
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JP2008290759A (en
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浩光 植田
和久 濱田
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Toyo Seikan Kaisha Ltd
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Toyo Seikan Kaisha Ltd
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Description

この発明は薄膜状のシール蓋を持つ陽圧缶を開封するための包装容器用開封器具、特にそのシール蓋の切れ残りを折り曲げ処理する処理部を一体として備えた包装容器用開封器具に関するものである。 The present invention relates to an opening device for a packaging container for opening a positive pressure can having a thin film-shaped sealing lid, and more particularly to an opening device for a packaging container that is integrally provided with a processing section for bending the remaining portion of the sealing lid. is there.

近年、特許文献１、２に記載されているような陽圧容器用の蓋であって、蓋体開口部に容器内方に相当する側から金属箔等のシール蓋１０７を、開口部を閉じるようにシールした陽圧密封蓋が開発されている。（図８，図９参照）このような陽圧密封蓋１０４を用いた包装容器には、例えばコーヒーの粉や粉ミルクが収容される。
この蓋を開封する治具として、特許文献１、３、４に記載されているようなカッターが使われるが、シール蓋を切断開封した後、開口の縁にシール蓋のぎざぎざの切れ残り１１８が発生し、これによって、手などを怪我するおそれがあるため、使い難いものとなっていた。
蓋体の開口縁のシール蓋の切れ残りから手指を保護する治具としては特許文献５、６に記載されているような、開封治具をそのまま蓋体の開口部に載置して開口縁のシール蓋の切れ残りをそのままにして覆い隠すものが開示されている。また、蓋体の開口縁のシール蓋の切れ残りを積極的に処理する機能を兼ねた開封治具としては、特許文献７〜９に記録された、切れ残りを容器内方に折り曲げる治具が開示されている。 2. Description of the Related Art Recently, a lid for a positive pressure container as described in Patent Documents 1 and 2, and a sealing lid 107 such as a metal foil is closed from the side corresponding to the inside of the container to the lid opening. A positive pressure sealing lid sealed in this manner has been developed. (See FIGS. 8 and 9) In the packaging container using such a positive pressure sealing lid 104, for example, coffee powder or powdered milk is accommodated.
As a jig for opening the lid, a cutter as described in Patent Documents 1, 3, and 4 is used. After cutting and opening the seal lid, a jagged residue 118 of the seal lid is formed on the edge of the opening. Because of this, there is a risk of injury to hands and the like, making it difficult to use.
As a jig for protecting fingers from the uncut portion of the sealing lid at the opening edge of the lid, an opening jig as described in Patent Documents 5 and 6 is placed on the opening of the lid as it is. There is disclosed a method of covering the cover with the remaining portion of the seal lid as it is. Moreover, as an opening jig which also has a function of actively processing the remaining portion of the seal lid at the opening edge of the lid, there is a jig recorded in Patent Documents 7 to 9 for bending the remaining portion inward of the container. It is disclosed.

特開２００４−１６８３１８号公報JP 2004-168318 A 特開２００５−３２９９６１号公報JP 2005-329961 A 特開２００５−２３１６４０号公報JP 2005-231640 A 特開２００６−０２７７３２号公報JP 2006-027732 A 実開昭６２−０８７０９４号公報Japanese Utility Model Publication No. 62-087094 実開昭６２−０８７０９５号公報Japanese Utility Model Publication No. 62-087095 実開昭５３−０３９６７２号公報Japanese Utility Model Publication No. 53-039672 実開昭５６−０９４７９１号公報Japanese Utility Model Publication No. 56-094791 実開昭６１−０８３５９５号公報Japanese Utility Model Publication No. 61-083595

しかし、特許文献５、６の方式だと、開口部がより狭くなるため、内容物の粉体をスプーンなどで取り出しにくくなる。また、特許文献７〜９の方式についてはシール蓋の切れ残りを開口の縁の垂下に折り曲げる機能は有するが、特許文献１、２に記載されているような、シール蓋を蓋体の容器内方に相当する側からシールするタイプの陽圧密封蓋については、シール蓋の切れ残りを開口縁から蓋体の下面に沿って折り返し、より蓋体の内方側へ折り曲げるための改善の余地がある。     However, in the methods of Patent Documents 5 and 6, the opening becomes narrower, so that it is difficult to take out the powder of the contents with a spoon or the like. Moreover, although the method of patent documents 7-9 has the function to bend the uncut part of a seal lid to the droop of the edge of an opening, as described in patent documents 1 and 2, the seal lid is installed in the container of the lid body. For positive pressure sealing lids of the type that seals from the side corresponding to the side, there is room for improvement in that the remainder of the sealing lid is folded back from the opening edge along the lower surface of the lid, and is folded further toward the inner side of the lid. is there.

この発明は、この陽圧密封蓋のシール蓋を切開する開封具としての機能を有し、かつシール蓋の切れ残りを、より蓋体の内方側へ折り曲げるための対策をほどこした治具を有する包装容器用開封具を提供することを目的とする。     This invention has a function as an opening tool for incising the sealing lid of the positive pressure sealing lid, and a jig that has taken measures to bend the remaining portion of the sealing lid to the inner side of the lid body. It aims at providing the opening tool for packaging containers which has.

この目的に対応して、この発明の包装容器用開封器具は蓋体の円形開口部をシール蓋が閉じている容器蓋の前記シール蓋を前記円形開口部の縁に沿って切開する開封器具であって、前記円形開口部内で回転中心線周りに回転可能な基体と、前記回転中心線周りの仮想の円筒面に沿って配置されていて前記シール蓋を切開可能な切刃と、前記円筒面よりも外方に突出している均し用突起と、を有し、また前記切刃と均し用突起は前記円形開口部内に差し込み可能であり、前記均し用突起は前記円形開口部内に差し込まれた状態において、弾性変形により前記蓋体の前記円形開口部の縁を乗り越えることが可能であることを特徴としている。   Corresponding to this purpose, the opening device for a packaging container according to the present invention is an opening device for incising the sealing lid of the container lid along the edge of the circular opening with the circular opening of the lid closed by the sealing lid. A base body rotatable around a rotation center line in the circular opening, a cutting blade disposed along a virtual cylindrical surface around the rotation center line and capable of cutting the seal lid, and the cylindrical surface A leveling protrusion protruding outward, and the cutting blade and the leveling protrusion can be inserted into the circular opening, and the leveling protrusion is inserted into the circular opening. In this state, it is possible to get over the edge of the circular opening of the lid by elastic deformation.

請求項１に記載した発明では、切刃がシール蓋を切開した時に発生する円形開口部の縁部に発生するシール蓋の切れ残りが均し用突起によって蓋体の下面に沿って折り返えされるので、シール蓋の切れ残りが円形開口部の縁から中央部に張り出すことがない。       According to the first aspect of the present invention, the uncut portion of the sealing lid generated at the edge of the circular opening generated when the cutting blade cuts the sealing lid is folded back along the lower surface of the lid by the leveling protrusion. Therefore, the remaining portion of the seal lid does not protrude from the edge of the circular opening to the center.

これによって手指が切れ残りによって傷つけられる恐れはなくなり、また切れ残りが円形開口部の開口を狭めることもないので、スプーンを使用した内容物の取り出しの邪魔になることもない。     As a result, there is no risk of the fingers being damaged by the uncut portion, and the uncut portion does not narrow the opening of the circular opening, so that it does not obstruct the removal of the contents using the spoon.

シール蓋の開封は切刃をシール蓋に刺し込んだ後、基体を握って切り刃を円形開口部の縁に沿って回転させるが、この回転操作は同時に均し用突起による均し動作にもなるので、開封と均し動作が同じ操作によって同時に行なわれることとなり、操作がきわめて簡単になる。     To open the seal lid, after inserting the cutting blade into the seal lid, grasp the base and rotate the cutting blade along the edge of the circular opening. Therefore, opening and leveling operations are performed simultaneously by the same operation, and the operation becomes extremely simple.

請求項２に記載した発明では均し用突起が切刃よりも上にあり、または切刃の上方寄りの高さにあるので、切刃をシール蓋に刺し込んで、切刃がシール蓋を切開した後に、またはそれと同時に、シール蓋の切れ残りを均し用突起が均すことになるので、均し処理がきわめて効果的に行われることになる。     In the invention described in claim 2, since the leveling protrusion is above the cutting edge or at a height close to the upper side of the cutting edge, the cutting edge is inserted into the sealing lid, and the cutting edge removes the sealing lid. After the incision or at the same time, the leveling protrusions level the remaining portion of the seal lid, so that the leveling process is performed very effectively.

請求項３に記載した発明では、均し用突起と切刃が同じ位相または異なる位相で配置されているので、各種の缶蓋に適した均し用突起の配置を選択することができる。     In the invention according to the third aspect, since the leveling protrusions and the cutting blade are arranged in the same phase or different phases, it is possible to select the arrangement of the leveling protrusions suitable for various can lids.

請求項４に記載した発明では、均し用突起が自己の弾性変形を利用して蓋体の円形開口部の縁をなぞりながらシール蓋の切れ残りを押圧するので、シール蓋の切れ残りの折り返しが確実に行なわれる。
請求項５に記載した発明では、均し用突起が成形金型のアンダーカットによって形成されるので、均し用突起の形成が容易である。 In the invention described in claim 4, since the leveling protrusion presses the uncut portion of the seal lid while tracing the edge of the circular opening of the lid body by utilizing its own elastic deformation, Is surely done.
In the invention according to the fifth aspect, since the leveling protrusions are formed by the undercut of the molding die, it is easy to form the leveling protrusions.

以下、この発明の詳細を一実施態様を示す図面について説明する。
図１において１は開封器具であり、少なくともフィルムを備えた蓋、例えば図２に示す缶容器２の開封のために使用されるものである。 Hereinafter, details of the present invention will be described with reference to the drawings showing an embodiment.
In FIG. 1, reference numeral 1 denotes an opening device, which is used for opening a lid provided with at least a film, for example, the can container 2 shown in FIG.

缶容器２は図６、図７に示すように、缶胴３の上端に陽圧密封蓋４を巻締部５において巻き締め固着したものである。容器蓋４は外側部分の蓋体６と中央部分のシール蓋７とからなっている。   As shown in FIGS. 6 and 7, the can container 2 is obtained by winding and fixing a positive pressure sealing lid 4 to the upper end of the can body 3 at a tightening portion 5. The container lid 4 includes a lid body 6 at an outer portion and a seal lid 7 at a central portion.

蓋体６は陽圧密封蓋４の中心線９を共通の中心とする環状の金属板製で、内周縁部にカール部８を有し、中央部に円形開口部１１を有する。シール蓋７は蓋体６の内面にヒートシール、または接着シールされて、蓋体６の円形開口部１１を閉じている。   The lid body 6 is made of an annular metal plate having the center line 9 of the positive pressure sealing lid 4 as a common center, and has a curled portion 8 at the inner peripheral edge portion and a circular opening portion 11 at the central portion. The seal lid 7 is heat sealed or adhesively sealed to the inner surface of the lid body 6 to close the circular opening 11 of the lid body 6.

この陽圧密封蓋４のシール蓋７がこの発明の開封器具１による切り裂き開封の対象としての１例である。   The sealing lid 7 of the positive pressure sealing lid 4 is an example of an object to be cut and opened by the opening device 1 of the present invention.

図２に示すように、開封器具１は基体１２を有し、基体１２は鍔１５とを有している。鍔１５は基体１２の周囲から中心線９回りの一周のうちの所定の角度位置（θ３）、図示の場合は０°、１２０°、２４０°の３位置において、かつ所定の角度範囲（θ４）（図示の場合は約３０°）で、基体１２から半径方向に突出している。   As shown in FIG. 2, the opening device 1 has a base 12, and the base 12 has a flange 15. The flange 15 is at a predetermined angular position (θ3) of one rotation around the center line 9 from the periphery of the base body 12, in the illustrated case, at three positions of 0 °, 120 °, and 240 °, and a predetermined angular range (θ4). It protrudes from the base 12 in the radial direction at about 30 ° in the case of illustration.

基体12の下面に中心線９（図１）方向に延出する切刃１３が仮想円筒面に沿って、略円周上に配置され設けられている。     A cutting edge 13 extending in the direction of the center line 9 (FIG. 1) is provided on the lower surface of the base body 12 so as to be disposed substantially on the circumference along the virtual cylindrical surface.

切刃１３の側面にはガス抜き溝１４が形成されている。開封器具１の切刃１３の刃先２１の形状は波状（円筒上に複数配置した場合の様態であって、個々は山状）または印刀状（四角形状、図１０）であり、後述するように、開封器具１を陽圧密封蓋１のシール蓋７に押し込み、シール蓋７に突き刺し切開した際、シール蓋７が輪状に既切部、未切部が交互に配置されるように部分的に切り開かれ、この未切部が一箇所当たり３ｍｍ以上切れ残るようにすると、フィルムが一度に切り落とされずに済むので好ましい。またこのための押し込み量を規制するストッパー１６を設ける。     A gas vent groove 14 is formed on the side surface of the cutting edge 13. The shape of the cutting edge 21 of the cutting blade 13 of the opening device 1 is a wave shape (in the case where a plurality of blades are arranged on a cylinder, each of which is a mountain shape) or a stamp shape (square shape, FIG. 10), which will be described later. In addition, when the opening device 1 is pushed into the sealing lid 7 of the positive pressure sealing lid 1 and stabbed into the sealing lid 7 to make an incision, the sealing lid 7 is partially arranged so that the cut and uncut portions are alternately arranged in a ring shape. It is preferable that the film is not cut off at a time, so that the uncut portion is cut by 3 mm or more per place. In addition, a stopper 16 for restricting the pushing amount for this purpose is provided.

図４に示すように、開封器具１には均し用突起１７が設けられている。
均し用突起１７はシール蓋７の切れ残り１８を均すための部材で切刃１３の外方に突出して形成されている。 As shown in FIG. 4, the opening device 1 is provided with a leveling protrusion 17.
The leveling protrusion 17 is a member for leveling the uncut portion 18 of the seal lid 7 and is formed to protrude outward from the cutting edge 13.

均し用突起１７はストッパー１６の下方でかつ刃先２１の上方の位置で切刃１３の半径方向の外方に突出して形成されている。     The leveling protrusion 17 is formed so as to protrude outward in the radial direction of the cutting edge 13 at a position below the stopper 16 and above the cutting edge 21.

均し用突起１７の中心線９方向の位置は刃先２１がシール蓋７を切開した後のシール蓋の切れ残り１８を均し用突起１７が均す必要があるので、刃先２１よりも上方に設ける必要があり、切刃１３の上方寄りに設けるのが好ましいが、開封器具１がストッパー１６によって蓋体６に係止されたとき切れ残り１８と同程度乃至わずかに低い位置にくるよう配置するのがより好ましい。     The leveling projection 17 is positioned in the direction of the center line 9 because the leveling projection 17 needs to level the uncut portion 18 of the seal lid after the cutting edge 21 cuts the seal lid 7. It is necessary to provide it, and it is preferable to provide it near the cutting edge 13, but when the opening device 1 is locked to the lid body 6 by the stopper 16, it is arranged to be at a position that is about the same as or slightly lower than the uncut portion 18. Is more preferable.

この場合は均し用突起１７を薄肉のフィン状に形成しておいて、刃先２１がシール蓋７に初期開口を形成する動作をしている間は、均し用突起１７がカール部８に当接して弾性変形により退避した姿勢をとるが、刃先２１がさらに下方に進めば、カール部８の縁をなぞりながら弾性復元し、切れ残り１８を蓋体６の下面に沿って反転させる。     In this case, the leveling protrusion 17 is formed in a thin fin shape, and the leveling protrusion 17 is formed on the curled portion 8 while the cutting edge 21 operates to form the initial opening in the seal lid 7. When the cutting edge 21 is further moved downward, it is elastically restored while tracing the edge of the curled portion 8, and the uncut portion 18 is reversed along the lower surface of the lid body 6.

中心線９回りの切刃１３と均し用突起１７の取り付け位置（同じ高さでも各々の周長）は、同じであってもよいし、異なってもよいが、両者の取付位置が同じであれば、開封器具１を中心線９の方向に推し進めたときに、切刃１３による切開動作の直後に均し用突起１７による均し動作が行われることになるので、シール蓋７の切開―均し動作が容易である。さらに切刃１３が均し用突起１７の高さ位置で個々の波型ではなく、基体１２と同様の円筒型になると、切開動作完了と同時にほぼ均しも完了する。（すなわち、均し用突起１７が切刃１３の上方にある）。     The attachment position (the same height or each circumference) of the cutting edge 13 and the leveling protrusion 17 around the center line 9 may be the same or different, but the attachment positions of both are the same. If there is, the leveling operation by the leveling protrusion 17 is performed immediately after the incision operation by the cutting blade 13 when the opening device 1 is pushed in the direction of the center line 9. Equalizing operation is easy. Further, when the cutting edge 13 is not an individual corrugated shape at the level of the leveling protrusion 17, but becomes a cylindrical shape similar to the base 12, the leveling is almost completed simultaneously with the completion of the cutting operation. (That is, the leveling protrusion 17 is above the cutting edge 13).

開封器具１が陽圧密封蓋４のシール蓋７に刺し込まれた状態において、均し用突起１７の外側先端はカール部８の縁よりも半径方向の外側に突出してるので、切刃１３がカール部８の直近に刺し込まれたときに、均し用突起１７はカール部８の内縁と干渉するが、弾性変形を生じてカール部８の内縁をなぞるようにカール部８を乗り越えて、カール部８の内縁の下面に達して弾性復元し、その間に、切れ残り１８に対する均し動作をする。     In the state where the opening instrument 1 is inserted into the seal lid 7 of the positive pressure sealing lid 4, the outer front end of the leveling projection 17 projects outward in the radial direction from the edge of the curled portion 8. The leveling protrusion 17 interferes with the inner edge of the curled portion 8 when it is inserted in the immediate vicinity of the curled portion 8, but it is elastically deformed and climbs over the curled portion 8 so as to trace the inner edge of the curled portion 8. It reaches the lower surface of the inner edge of the curled portion 8 and is elastically restored.

この均し用突起１７を射出成形時の金型のアンダーカットにより形成すれば、均し用突起１７の形成はきわめて容易であるし、必要に応じて開閉割型等で金型からの取り出しを容易にしてもよい。     If the leveling projections 17 are formed by undercutting the mold during injection molding, the leveling projections 17 are very easy to form, and can be removed from the mold with an open / close split mold if necessary. It may be easy.

このように構成された開封器具１の作用は次の通りである。   The operation of the opening device 1 configured in this way is as follows.

缶容器２の陽圧密封蓋４を開封する場合は、切刃１３を下に向けた状態で開封器具１を缶容器２の頂部に嵌合させる。このとき刃先２１は缶容器２の陽圧密封蓋４のシール蓋７に対向し、位置もほぼシール蓋７の切り始め位置（カール部８の内縁）に決まっている。   When opening the positive pressure sealing lid 4 of the can container 2, the opening device 1 is fitted to the top of the can container 2 with the cutting blade 13 facing downward. At this time, the blade edge 21 is opposed to the seal lid 7 of the positive pressure sealing lid 4 of the can container 2 and the position thereof is determined substantially at the cutting start position of the sealing lid 7 (inner edge of the curled portion 8).

この状態から、開封操作としてオーバーキャップ型開封器具１を手で中心線９方向に押し下げると、図３に示すように、刃先２１がシール蓋７に突き刺さって開封し、ガス抜き溝１４を通してガス抜きが行われる。これと同時に均し用突起１７もカール部８の内縁を乗り越えて、カール部８の下面に達する。   From this state, when the overcap-type opening device 1 is manually pushed down in the direction of the center line 9 as an opening operation, the blade edge 21 pierces the seal lid 7 as shown in FIG. Is done. At the same time, the leveling protrusion 17 also passes over the inner edge of the curled portion 8 and reaches the lower surface of the curled portion 8.

ついで、基体１２を中心線９（図１）回りに回転させると切刃がシール蓋７を引き切り、同時に均し用突起１７がカール部８の内縁の下面に沿って中心線９回りに摺動し、カール部８との間に切れ残り１８を挟んで均し動作をし、切れ残り１８はカール部８の下面に沿って反転し、その姿勢を保つ。こうして缶容器２の円形開口部１１が開き、円形開口部１１から内容物の取り出しが可能となる。     Next, when the base 12 is rotated around the center line 9 (FIG. 1), the cutting blade cuts off the seal lid 7, and at the same time, the leveling protrusion 17 slides around the center line 9 along the lower surface of the inner edge of the curled portion 8. The curling portion 8 is sandwiched between the curled portions 8 and the leveling operation is performed. The uncut portions 18 are inverted along the lower surface of the curled portion 8 to maintain the posture. Thus, the circular opening 11 of the can container 2 is opened, and the contents can be taken out from the circular opening 11.

図５はこの発明の他の実施態様に係る開封器具１ｂを示すもので、この開封器具１ｂでは切刃２１ｂの一方の端部に薄肉の均し部材１７ｂが設けられているものであって容器蓋４の蓋体６の円形開口部の外側に達するように切刃２１ｂの外側に突出している。     FIG. 5 shows an opening instrument 1b according to another embodiment of the present invention. In this opening instrument 1b, a thin leveling member 17b is provided at one end of a cutting blade 21b. It protrudes to the outside of the cutting blade 21b so as to reach the outside of the circular opening of the lid 6 of the lid 4.

切刃２１ｂは開封器具１ｂを陽圧密封蓋７に押し込まれたときに蓋体６のカール部８の内側に位置するが均し用突起１７ｂは弾性変形によってカール部８をなぞりながらカール部８を乗り越え、カール部８の下側に回り込み、開封器具を蓋体６に対し、回転させることによってシール蓋７の切れ残りを均す。     The cutting blade 21b is located inside the curled portion 8 of the lid 6 when the opening device 1b is pushed into the positive pressure sealing lid 7, but the leveling projection 17b traces the curled portion 8 by elastic deformation while curling the curled portion 8b. Is passed over the curled portion 8 and the opening device is rotated relative to the lid body 6 to level out the remaining portion of the seal lid 7.

このようにこれら開封器具では、切断後の開口エッジも形良く、整形することができ、切刃がシール蓋を切開した時に発生する円形開口部の縁部に発生するシール蓋の切れ残りが均し用突起によって蓋体の下面に沿って折り返えされるので、シール蓋の切れ残りが円形開口部の縁から中央部に張り出すことがない。       As described above, in these opening instruments, the opening edge after cutting can be shaped and shaped well, and the uncut portion of the seal lid generated at the edge of the circular opening generated when the cutting blade cuts the seal lid is uniform. Since it is folded back along the lower surface of the lid by the projection for cutting, the uncut portion of the seal lid does not protrude from the edge of the circular opening to the center.

これによって手指が切れ残りによって傷つけられる恐れはなくなり、また切れ残りが円形開口部の開口を狭めることもないので、スプーンを使用した内容物の取り出しの邪魔になることもない。     As a result, there is no risk of the fingers being damaged by the uncut portion, and the uncut portion does not narrow the opening of the circular opening, so that it does not obstruct the removal of the contents using the spoon.

シール蓋の開封は切刃をシール蓋に刺し込んだ後、基体を握って切り刃を円形開口部の縁に沿って回転させるが、この回転操作は同時に均し用突起による均し動作にもなるので、開封と均し動作が同じ操作によって同時に行なわれることとなり、操作がきわめて簡単になる。その結果、簡便かつ安全に開口し使用できる陽圧密封蓋の開封器具をうることできる。     To open the seal lid, after inserting the cutting blade into the seal lid, grasp the base and rotate the cutting blade along the edge of the circular opening. Therefore, opening and leveling operations are performed simultaneously by the same operation, and the operation becomes extremely simple. As a result, it is possible to obtain an opening device for a positive pressure sealing lid that can be easily and safely opened and used.

開封器具１はその構造に応じて、缶容器２に装着したままでもよいし、缶容器から外してもよい。なお、開封器具１の鍔１５の有無、形状はとくに問わない。また容器、蓋は本実施形態に限らす、例えばプラスチック容器でもよいし、角型など様々な容器形状でもよい。     Depending on the structure, the opening device 1 may remain attached to the can container 2 or may be removed from the can container. In addition, the presence or absence and shape of the ridge 15 of the opening instrument 1 are not particularly limited. In addition, the container and the lid are not limited to this embodiment, and may be, for example, a plastic container or various container shapes such as a square shape.

蓋もフィルムを貼る開口部が円形であれば、蓋体の形状は問わないし、カール８の有無も問わない。容器と蓋体との結合方法も巻締に限らず、かしめ、クリンチ、溶接、接着などでもよい。     As long as the opening on which the film is attached is circular, the shape of the lid is not questioned, and the presence or absence of the curl 8 is not questioned. The method of joining the container and the lid is not limited to winding, but may be caulking, clinching, welding, adhesion, or the like.

開封器具を示す図で、（ａ）は平面図、（ｂ）は側面図、（ｃ）は底面図である。It is a figure which shows an opening instrument, (a) is a top view, (b) is a side view, (c) is a bottom view. 開封器具の拡大断面部分図Enlarged sectional view of the opening device 使用時の開封器具を示す断面図Sectional view showing the opening device when in use 使用時の開封器具を示す拡大断面部分図Expanded cross-sectional partial view showing the opening device in use 他の開封器具の切刃と均し用突起を示す平面説明図Plane explanatory drawing showing cutting blades and leveling protrusions of other opening devices 缶容器を示す斜視図Perspective view showing can container 缶容器を示す平面図Top view showing a can container 従来の開封器具を示す拡大断面部分図Enlarged sectional partial view showing a conventional opening device シール蓋の切れ残り状態を示す平面図Plan view showing the uncut state of the seal lid 切刃を示す拡大正面図Enlarged front view showing the cutting edge

符号の説明Explanation of symbols

１ 開封器具
２ 缶容器
３ 缶胴
４ 陽圧密封蓋
５ 巻締部
６ 蓋体
７ シール蓋
８ カール部
９ 中心線
１１ 円形開口部
１２ 基体
１３ 切刃
１４ ガス抜き溝
１５ 鍔
１６ ストッパー
１７ 均し用突起
１８ 切れ残り
２１ 刃先
１０４ 陽圧密封蓋
１０７ シール蓋
１１８ 切れ残り DESCRIPTION OF SYMBOLS 1 Opening instrument 2 Can container 3 Can body 4 Positive pressure sealing lid 5 Winding part 6 Lid 7 Seal lid 8 Curl part 9 Center line 11 Circular opening 12 Base 13 Cutting blade 14 Degassing groove 15 １６ 16 Stopper 17 Leveling Protrusion 18 Cutting residue 21 Cutting edge 104 Positive pressure sealing lid 107 Sealing lid 118 Cutting residue

Claims (4)

蓋体の円形開口部をシール蓋が閉じている容器蓋の前記シール蓋を前記円形開口部の縁に沿って切開する開封器具であって、前記円形開口部内で回転中心線周りに回転可能な基体と、前記回転中心線周りの仮想の円筒面に沿って配置されていて前記シール蓋を切開可能な切刃と、前記円筒面よりも外方に突出している均し用突起と、を有し、また前記切刃と均し用突起は前記円形開口部内に差し込み可能であり、前記均し用突起は前記円形開口部内に差し込まれた状態において、弾性変形により前記蓋体の前記円形開口部の縁を乗り越えることが可能であることを特徴とする包装容器用開封器具。 An opening device for incising the sealing lid of the container lid along the edge of the circular opening, wherein the sealing lid is closed with the circular opening of the lid, and is rotatable around a rotation center line within the circular opening A base, a cutting blade disposed along a virtual cylindrical surface around the rotation center line and capable of cutting through the seal lid; and a leveling protrusion protruding outward from the cylindrical surface. and also the cutting edge and for leveling projection Ri can der insertion into the circular opening, in a state wherein the leveling projection is plugged into the circular opening, the circular opening of the lid by elastic deformation packaging container for opening instrument, wherein can der Rukoto get over edge parts. 前記均し用突起は、前記切刃よりも前記回転中心線方向の上方にあり、または前記切刃と前記回転中心線方向の上方寄りの高さにあることを特徴とする請求項1記載の包装容器用開封器具。   2. The leveling protrusion is located above the cutting edge in the rotation center line direction or at a height closer to the cutting edge and the rotation center line direction. Opening device for packaging containers. 前記均し用突起は前記切刃と前記回転中心線周りの同じ角度位置または異なる角度位置に配置されていることを特徴とする請求項1または２のいずれかに記載の包装容器用開封器具。   3. The packaging container opening device according to claim 1, wherein the leveling protrusions are arranged at the same angular position or different angular positions around the cutting edge and the rotation center line. 前記均し用突起はアンダーカットにより構成されることを特徴とする請求項1〜３のいずれかに記載の包装容器用開封器具。The packaging container opening device according to any one of claims 1 to 3, wherein the leveling protrusion is formed by an undercut.
JP2007139941A 2007-05-28 2007-05-28 Opening device for packaging containers Active JP5007810B2 (en)

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JP5007810B2 true JP5007810B2 (en) 2012-08-22

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WO2012132139A1 (en) * 2011-03-28 2012-10-04 住友ゴム工業株式会社 Refill pack case assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54118366U (en) * 1978-02-07 1979-08-18
JPS6183595U (en) * 1984-11-02 1986-06-02
JP3044044B1 (en) * 1999-06-23 2000-05-22 三洋化成工業株式会社 can opener
JP4737602B2 (en) * 2004-06-18 2011-08-03 東洋製罐株式会社 Film can lid opening tool

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