JP4077494B2 - Container lid - Google Patents

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JP4077494B2
JP4077494B2 JP2006297249A JP2006297249A JP4077494B2 JP 4077494 B2 JP4077494 B2 JP 4077494B2 JP 2006297249 A JP2006297249 A JP 2006297249A JP 2006297249 A JP2006297249 A JP 2006297249A JP 4077494 B2 JP4077494 B2 JP 4077494B2
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lid
top plate
lids
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JP2007276875A (en
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誠 長沼
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Aska Co
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Description

本発明は、主にヨーグルトやアイスクリームなどの被注出物が入った容器の蓋に関するものである。   The present invention mainly relates to a lid of a container containing an object to be poured such as yogurt or ice cream.

着脱操作が容易で装着性のすぐれた容器の蓋として、特許文献１に記載の嵌合筒部の内径面に容器口部外周面部の下縁と係止する周方向の横突部と、前記容器口部外周面部と当接縦リブとを厚みのある台状突部の上に形成した３個以上からなる係止部を設けた、ジャムやマーマレード等の食品類を入れた容器の密封シールを保護するためのオーバーキャップが提案されている。   As a container lid that is easy to attach and detach and has excellent wearability, a circumferential lateral protrusion that engages with the lower edge of the container mouth outer peripheral surface portion on the inner diameter surface of the fitting tube portion described in Patent Document 1, and A hermetic seal for containers containing food such as jams and marmalades, provided with three or more locking portions in which the outer peripheral surface portion of the container mouth and the contacting vertical rib are formed on a thick base-like protrusion. Overcaps have been proposed to protect them.

また、容器本体に嵌合操作し易く係合冠着せしめ得ると共に、係合冠着したら脱離し難く冠着を保持し得るオーバーキャップとして、特許文献２に記載のフランジ係合部の開口部側に下方の周壁の周方向に沿って、内側に膨出する周方向長軸の楕円形の膨出突部が複数個設けられ、その頂部近傍に貫通孔が設置され貫通孔の内側出口付近に突片が形成されているプラスチック薄板材からなるシート成形法により形成したオーバーキャップが提案されている。   Further, as an overcap that can be easily fitted into the container body and can be fitted with an engagement crown, and is difficult to be detached when the engagement crown is fitted, and can hold the crown, the opening side of the flange engagement portion described in Patent Document 2 A plurality of elliptical bulging protrusions with a circumferential long axis that bulges inward along the circumferential direction of the lower peripheral wall are provided, and a through hole is installed near the top of the bulging protrusion near the inner outlet of the through hole. There has been proposed an overcap formed by a sheet forming method made of a plastic thin plate material on which protrusions are formed.

更に、複数の蓋を順に積層する場合には、上部の巾が下部の巾よりも小さい中空立上がり縁を利用することによって多数の蓋を上下に順に嵌合させながら、安定した状態で積層し、下の蓋の中空立上がり縁の上縁面の端縁と段部とが、上の蓋の中空立上がり縁のリング凹条及び天井板の周辺縁に当接されるので、上下の蓋が不必要に深く嵌合されて、抜けなくなることを防止する特許文献３に記載の包装用容器の蓋が提案されている。   Furthermore, when laminating a plurality of lids in order, laminating in a stable state while fitting a large number of lids up and down by using a hollow rising edge whose upper width is smaller than the lower width, The top edge and step of the upper edge of the lower rising edge of the lower lid are in contact with the ring ridge of the upper rising edge of the upper lid and the peripheral edge of the ceiling panel, so there is no need for upper and lower lids. A packaging container lid described in Japanese Patent Application Laid-Open No. H10-228707 is proposed which is deeply fitted to the cover and prevents it from being pulled out.

また、脱着が容易で、かつ容器のフランジ部の微妙な口径差異にも対応して確実に嵌合できる容器蓋として、特許文献４に記載の容器フランジ部の外周部に対向するように嵌め合わされる蓋嵌合部の壁面を、上方視多角形状の多角壁とする容器蓋が提案されている。   Further, as a container lid that can be easily attached and detached and can be securely fitted in response to a slight difference in the diameter of the flange portion of the container, the container lid is fitted so as to face the outer peripheral portion of the container flange portion described in Patent Document 4. A container lid has been proposed in which the wall surface of the lid fitting portion is a polygonal wall having a polygonal shape when viewed from above.

更に、複数の蓋体を積層する際に、段差部が蓋体周縁部の上面に嵌合することで両者が必要以上深く嵌合することを防止する容器の蓋体として、特許文献５に記載の容器本体の開口縁に外嵌する立設縁の先端近傍に所定の幅で外側に広がった段差部と、複数の蓋体を重ねた際に一の前記蓋体の段差部が他の前記蓋体の天板の輪郭部に嵌合するインスタント食品用容器の蓋体が提案されている。 Furthermore, when laminating a plurality of lids, Patent Document 5 discloses a lid for a container that prevents a stepped portion from fitting to an upper surface of a peripheral edge of the lid to prevent both from fitting more than necessary. A stepped portion extending outward with a predetermined width in the vicinity of the end of the standing edge that fits outside the opening edge of the container body, and a stepped portion of the one lid when the plurality of lids are stacked together A lid for an instant food container that fits into the contour of the top plate of the lid has been proposed.

また、アイスクリームのカートンのキャップとして、特許文献６に記載の垂下するスカート部分を有し単一の円形の形状の樹脂蓋を備え、前記蓋の上面は、複数の同様な蓋が堆積される関係での保持を向上すると共に、蓋の剛性を与える如く、その外側面で内方へ傾斜し上方かつ内方へ延びる同心状ビードを有したキャップやアイスクリームのカートン等のキャップと類似形状をもつ特許文献７に記載のオーバーキャップが提案されている。   Further, as a cap of an ice cream carton, it is provided with a single circular-shaped resin lid having a hanging skirt portion described in Patent Document 6, and a plurality of similar lids are deposited on the upper surface of the lid. In order to improve the retention in the relationship and to give the lid rigidity, it has a shape similar to a cap such as a cap having a concentric bead that inclines inward on its outer surface and extends upward and inward, and a cap such as an ice cream carton An overcap described in Patent Document 7 is proposed.

更に、引用文献８に記載の容器の蓋として、引用文献８の第５欄第３０行〜第３６行に、ガスケット（ｇａｓｋｅｔ）上に、半径方向内側に突出するノブ（ｋｎｏｂ ３３）が形成され、ノブ（３３）は密閉機におけるキャップ貯蔵やキャップ供給の際に好ましからざるキャップ（ｃａｐ ３１）の積み重ねを防止することが記載されており、また、引用文献８の第５欄第３８行〜第４４行には、ノブ（３３）が容器の溝（１２）内に位置して固定作用をなすとともに、キャップの取り外しの際にラグ（ｌｕｇ ３０）と同様に取り外させることもあることが記載されている。   Further, as a lid of the container described in the cited document 8, a knob (knob 33) protruding radially inward is formed on the gasket in the fifth column, lines 30 to 36 of the cited document 8. The knob (33) is described to prevent undesired accumulation of caps (cap 31) during cap storage and supply of caps in the sealing machine. Line 44 states that the knob (33) is located in the groove (12) of the container and has a fixing action, and may be removed in the same manner as the lug (lug 30) when removing the cap. ing.

特開平０９−１８８３５３号公報JP 09-188353 A 特開２００３−３２１０５３号公報JP 2003-321053 A 特開平１０−１２０００５号公報Japanese Patent Laid-Open No. 10-120005 特開２００２−３３７９００号公報JP 2002-337900 A 特開２００５−２８０７３３号公報JP 2005-280733 A 特開昭５７−１７５５５６号公報JP-A-57-175556 ＵＳ６４７８１８３号公報US 6478183 ＵＳ３７４１４２３号公報US3741423

一般的に容器の蓋などを保管する場合、容器の蓋を上方に積み重ねて積層させていくことで保管場所の省スペース化が図れ、保管ならびに輸送などのコスト低減を行うことができるが、特許文献１に記載のオーバーキャップでは、容器外周面部の下縁と係止する周方向の横突部がオーバーキャップの側面内側の下端側に設置されていることと、各横突部と相対峙する箇所の側面内側の下端側に突状部も設置されているため、複数の蓋を上方に順に重ねた場合、前記横突部及び前記突状部の出っ張りが邪魔となり、容器の蓋が上方に順に積み重なるにつれて不安定な状態となり、すぐに荷崩れを起こしてしまう。また、ヨーグルトやアイスクリームなどの被注出物が充填された容器本体へバキューム装置などを使用して自動的に容器の蓋を容器本体の開口部分へキャッピングしていく場合には、積み重ねられた容器の蓋を上方から１個つづバキューム装置などで吸着して搬送しながら供給していくが、積み重ねられた状態が不安定であるためにうまく吸着できず安定的に供給していくのが困難である。 Generally, when storing container lids etc., stacking the container lids on top of each other can save space in the storage area and reduce costs such as storage and transportation. In the overcap described in Document 1, the circumferential lateral protrusion that engages with the lower edge of the outer peripheral surface of the container is installed on the lower end side inside the side surface of the overcap, and faces each lateral protrusion. Since a protruding part is also installed on the lower end side inside the side of the place, when a plurality of lids are stacked in order upward, the protruding of the lateral protruding part and the protruding part becomes an obstacle, and the lid of the container is upward As they pile up in order, they become unstable and quickly collapse. In addition, when automatically capping the lid of the container to the opening of the container body using a vacuum device or the like to the container body filled with the extraction object such as yogurt or ice cream, it was stacked. The container lids are supplied from the top while being sucked and transported one by one with a vacuum device, etc., but the stacked state is unstable and cannot be sucked well, making it difficult to supply stably. It is.

更に、特許文献２に記載の容器用オーバーキャップでは、周壁に沿って内側に膨出する膨出突部が複数個設けられていることで、オーバーキャップを複数個、上方に積み重ねた場合、前記膨出突部はスタック性を良好にすることを目的として形成されたものではなく、オーバーキャップを冠着した容器の搬送や陳列に当たって生じる外的衝撃に遭遇しても冠着保持できる形状として形成されたものであるので、積み重ねに際する安定性には劣るものである。尚、ここでいうスタック性とは、オーバーキャップを上方に順次積み重ねていったときに崩れることなく安定的な積み重ねができることを言う。   Furthermore, in the container overcap described in Patent Document 2, a plurality of bulging protrusions that bulge inward along the peripheral wall are provided. The bulging protrusion is not formed for the purpose of improving the stackability, but is formed to have a shape that can be retained even if it encounters an external impact that occurs when a container with an overcap is transported or displayed. Therefore, the stability during stacking is poor. The term “stackability” as used herein means that stable stacking can be achieved without collapsing when the overcaps are sequentially stacked upward.

また、特許文献３に記載の包装用容器の蓋では、上下の蓋が不必要に深く嵌合されて、抜けなくなることを防止することを作用効果としているとはいえ、上下の蓋が密着する可能性が残されており、上下の蓋が抜けなくなる。   Further, in the lid of the packaging container described in Patent Document 3, the upper and lower lids are in close contact with each other even though the upper and lower lids are unnecessarily deeply fitted to prevent them from coming off. The possibility remains and the upper and lower lids cannot be removed.

更に、特許文献４に記載の容器蓋では、容器蓋の嵌合部に形成された逆テーパー部が、嵌合部の内側領域に対して、下方側の容器蓋の嵌合部が嵌入し、容器蓋同士が深くスタックしてしまうのを防止するようにしているため、スカート部の位置を浅めに設置しており、容器蓋同士が積み重ねられた状態で輸送する場合、輸送による振動に対して荷崩れが発生しやすく積み重ねに際する安定性には劣る。また、特許文献５に記載の容器の蓋体についても、特許文献４に記載の容器蓋と同様に段差部の位置が浅めに設置してあるため、輸送による振動に対して荷崩れが発生しやすく積み重ねに際する安定性には劣る。尚、ここでいうスタックとは、容器蓋を上方に順次積み重ねていったときに容器蓋と上方の容器蓋が積み重なる容器蓋の重みにより嵌着してしまい、１枚つづ確実に取り出しができないことを言う。   Furthermore, in the container lid described in Patent Literature 4, the reverse taper portion formed in the fitting portion of the container lid is inserted into the fitting portion of the lower container lid with respect to the inner region of the fitting portion, In order to prevent the container lids from being stacked deeply, the skirt is positioned shallower, and when transporting in a state where the container lids are stacked together, Load collapse tends to occur and the stability during stacking is poor. Further, the container lid described in Patent Document 5 is also provided with a shallower stepped portion as in the case of the container cover described in Patent Document 4, so that the load collapses due to vibration caused by transportation. It is easy to be stacked and inferior in stability. In addition, the stack here means that when the container lids are sequentially stacked upward, the container lid and the upper container lid are fitted due to the weight of the stacked container lids, and cannot be reliably removed one by one. Say.

更に、特許文献６及び特許文献７に記載のオーバーキャップでは、オーバーキャップ同士が積み重なる位置は、円板部分の円周に設置されたスカート部の上部に上方のオーバーキャップのスカート部の下部がのりあがるため、輸送による振動に対して荷崩れが発生しやすく積み重ねに際する安定性には劣る。   Furthermore, in the overcaps described in Patent Document 6 and Patent Document 7, the positions at which the overcaps are stacked are such that the lower part of the skirt part of the upper overcap is glued to the upper part of the skirt part installed on the circumference of the disk part. For this reason, cargo collapse tends to occur due to vibration caused by transportation, and the stability during stacking is poor.

また、引用文献８記載の容器の蓋では、半径方向内側に突出するノブ(ｋｎｏｂ ３３)が形成されており、容器の蓋同士が重なり合ったときに、上位の前記ノブ(ｋｎｏｂ ３３)が、下位の蓋体のカバー（ｃｏｖｅｒ ７）外周からスカート（ｓｋｉｒｔ ６）部分に至るコーナー付近で前記ノブ(ｋｎｏｂ ３３)の下端は円周状の線で接するため、容器の蓋同士の積み重ねによる重みで、スカート部は外へ開こうという力が働き容器の蓋同士が嵌合しあい、奥へくいこみ固着されてしまうので、１枚づつ確実に容器の蓋を取り出すことはできない構造である。仮にノブ(ｋｎｏｂ ３３)を形成する位置をラグ（ｌｕｇ ３０）が形成された位置に設置しても、ノブ(ｋｎｏｂ ３３)が接する位置は、同じように円周状の線で接することには変わりなく、容器の蓋同士の積み重ねによる重みで、スカート部は外へ開こうという力が働き容器の蓋同士が嵌合しあい、奥へくいこみ固着されてしまうので、１枚づつ確実に容器の蓋を取り出すことはできない。また、ノブ(ｋｎｏｂ ３３)は円周状の線で接しているので、積み重ねによるバランスはとりづらく安定性には劣り、容器の蓋を順次積み重ねていくと傾いて崩れるので、十数枚〜百枚単位での積み重ねをすることは困難である。   Further, in the container lid described in the cited document 8, a knob (knob 33) protruding radially inward is formed, and when the container lids overlap each other, the upper knob (knob 33) is lower. Since the lower end of the knob (knob 33) is in contact with a circumferential line in the vicinity of the corner from the outer periphery of the cover (cover 7) of the lid to the skirt (skirt 6) portion, the weight by stacking the lids of the containers, The skirt portion is structured to prevent the container lids from being taken out one by one because a force to open the skirt portion works and the lids of the containers fit together and are stuck and fixed to the back. Even if the position where the knob (knob 33) is formed is set at the position where the lug (lug 30) is formed, the position where the knob (knob 33) is in contact can be similarly touched by a circumferential line. The weight of the container lids does not change, and the skirt part is forced to open to the outside, and the container lids fit together and are stuck in the back. Can not be taken out. In addition, since the knob (knob 33) is in contact with the circumferential line, the balance due to stacking is difficult to maintain, and the stability is poor. It is difficult to stack in units of sheets.

本発明の目的は、上記課題を解決し、複数個の容器の蓋を上方に順に積み重ねした際に荷崩れが発生するか否かの状態、即ちスタック性を安定させ、スタックした容器の蓋が密着するのを防止し上方に順に１個づつ確実に取り出すことができる容器の蓋を提供すると共に、容器の開口部へ嵌め込みしやすい容器の蓋を提供することである。   The object of the present invention is to solve the above-mentioned problems, stabilize the stackability when stacking a plurality of container lids in order, that is, whether or not stacking occurs. An object of the present invention is to provide a container lid that can be securely taken out one by one in an upward direction while preventing contact, and to provide a container lid that can be easily fitted into the opening of the container.

本発明は、円板状の天板部と、前記天板部の外周から下端へ延出し、前記天板部の外径よりも大きな内径をもつ円筒状の側壁部とを有する合成樹脂材でできた容器の蓋であって、前記容器の蓋は射出成形法により厚肉部以外は０．７ｍｍ以下の肉厚となる薄肉で形成し、前記側壁部の中間部分に内側に突出する厚肉部を設けて前記厚肉部と天板部との間に凹所を形成するとともに、前記厚肉部には前記天板部と反対位置方向に突出した複数のスタックリブ部を設けて、断面視において、スタックリブ部の水平な下端と垂線を結ぶスタックリブ部のＲ部（ｚ）と厚肉部頂点のＲ部（ｙ）の両方に接する線と、前記厚肉部頂点のＲ部（ｙ）を起点とした垂線とが交差する勾配角度（ｂ）は２５度から４５度であり、かつ、前記スタックリブ部は垂直方向の高さ（ｃ）が０．３ｍｍから０．８ｍｍであることを特徴とする容器の蓋である。 The present invention is a synthetic resin material having a disk-shaped top plate portion and a cylindrical side wall portion extending from the outer periphery of the top plate portion to the lower end and having an inner diameter larger than the outer diameter of the top plate portion. The container lid is formed by a thin wall having a thickness of 0.7 mm or less except for the thick wall portion by an injection molding method, and is thickly projected inward to an intermediate portion of the side wall portion. And forming a recess between the thick portion and the top plate portion, and providing the thick portion with a plurality of stack rib portions protruding in a direction opposite to the top plate portion. In view, a line in contact with both the R portion (z) of the stack rib portion connecting the horizontal lower end of the stack rib portion and the perpendicular and the R portion (y) of the thick portion vertex, and the R portion ( y) the gradient angle of intersection and a vertical line starting from the (b) is 45 degrees 25 degrees, and the stack rib portion vertical A lid of a container, wherein the direction of the height (c) is 0.8mm from 0.3 mm.

本発明は、複数の容器の蓋同士が上方に積み重ねられたときに、前記スタックリブ部の下端面が下方の容器の蓋の天板部の水平部に当接するとともに、前記スタックリブ部が設置されていない箇所の前記厚肉部と下方の容器の蓋の前記天板部の間に隙間ができる容器の蓋である。   According to the present invention, when the lids of a plurality of containers are stacked upward, the lower end surface of the stack rib part abuts on the horizontal part of the top plate part of the lower container lid, and the stack rib part is installed This is a container lid in which a gap is formed between the thick-walled portion at an unfinished portion and the top plate portion of the lower container lid.

本発明は、複数の容器の蓋同士が上方に積み重ねられたときに、容器の蓋の側壁部と、下方の容器の蓋の側壁部との間に０．１ｍｍから０．３ｍｍの第二隙間ができる容器の蓋である。   The present invention provides a second gap of 0.1 mm to 0.3 mm between the side wall of the container lid and the side wall of the lower container lid when the lids of the plurality of containers are stacked upward. This is a container lid.

本発明は、円板状の天板部と、前記天板部の外周から下端へ延出し、前記天板部の外径よりも大きな内径をもつ円筒状の側壁部とを有する合成樹脂材でできた容器の蓋であって、前記容器の蓋は射出成形法により厚肉部以外は０．７ｍｍ以下の肉厚となる薄肉で形成し、前記側壁部の中間部分に内側に突出する厚肉部を設けて前記厚肉部と天板部との間に凹所を形成するとともに、前記厚肉部には前記天板部と反対位置方向に突出した複数のスタックリブ部を設けて、断面視において、スタックリブ部の水平な下端と垂線を結ぶスタックリブ部のＲ部（ｚ）と厚肉部頂点のＲ部（ｙ）の両方に接する線と、前記厚肉部頂点のＲ部（ｙ）を起点とした垂線とが交差する勾配角度（ｂ）は２５度から４５度であり、かつ、前記スタックリブ部は垂直方向の高さ（ｃ）が０．３ｍｍから０．８ｍｍであることを特徴とする容器の蓋であるので、０．７ｍｍ以下の肉厚寸法にすることで真空成形法に近い肉厚寸法で外観形状にバリエーションを持たせた高級感のある形状を射出成形法で形成することができる。また、肉厚寸法が薄肉になれば単量を少なくすることができるので原料コストを削減することができる上、断面視において、スタックリブ部の水平な下端と垂線を結ぶスタックリブ部のＲ部（ｚ）と厚肉部頂点のＲ部（ｙ）の両方に接する線と、前記厚肉部頂点のＲ部（ｙ）を起点とした垂線とが交差する勾配角度（ｂ）は２５度から４５度であり、前記スタックリブ部は垂直方向の高さ（ｃ）が０．３ｍｍから０．８ｍｍであることで、本発明である容器の蓋を容器の開口部へ装着したときに前記スタックリブ部は容器本体嵌合部へのガイドの役目を果たし、前記容器の蓋を容器の開口部へ嵌め込みしやすい容器の蓋である。 The present invention is a synthetic resin material having a disk-shaped top plate portion and a cylindrical side wall portion extending from the outer periphery of the top plate portion to the lower end and having an inner diameter larger than the outer diameter of the top plate portion. The container lid is formed by a thin wall having a thickness of 0.7 mm or less except for the thick wall portion by an injection molding method, and is thickly projected inward to an intermediate portion of the side wall portion. And forming a recess between the thick portion and the top plate portion, and providing the thick portion with a plurality of stack rib portions protruding in a direction opposite to the top plate portion. In view, a line in contact with both the R portion (z) of the stack rib portion connecting the horizontal lower end of the stack rib portion and the perpendicular and the R portion (y) of the thick portion vertex, and the R portion ( y) the gradient angle of intersection and a vertical line starting from the (b) is 45 degrees 25 degrees, and the stack rib portion vertical Since the height of the direction (c) is a lid of a container characterized by 0.3 mm to 0.8 mm, the wall thickness is close to that of the vacuum forming method by setting the wall thickness to 0.7 mm or less. A high-quality shape with variations in the appearance shape can be formed by injection molding. Further, if the thickness is reduced, the amount of material can be reduced, so that the raw material cost can be reduced, and the R portion of the stack rib portion that connects the horizontal lower end of the stack rib portion and the perpendicular in the sectional view. The gradient angle (b) at which the line that contacts both (z) and the R part (y) of the thick part apex and the perpendicular starting from the R part (y) of the thick part apex is 25 degrees The stack rib part has a vertical height (c) of 0.3 mm to 0.8 mm, and the stack rib part has the stack when the container lid according to the present invention is attached to the opening of the container. The rib portion serves as a guide to the container body fitting portion, and is a container lid that allows the container lid to be easily fitted into the opening of the container.

また、本発明の容器の蓋は、複数の容器の蓋同士が上方に積み重ねられたときに、前記スタックリブ部の下端面が下方の容器の蓋の天板部の水平部に当接し、前記スタックリブ部が設置されていない箇所の前記厚肉部と下方の容器の蓋の前記天板部の間に隙間ができる容器の蓋であるので、容器の蓋のスタックリブ部の水平な下端面が天板部の水平部に当接できる形状になるので、容器の蓋同士の積み重ねの安定性が非常に高い容器の蓋である。更に、前記厚肉部と下方の容器の蓋の前記天板部の間に隙間が一定にできることで、この隙間から空気の出入りがなされ、積み重なり合う容器の蓋同士の減圧や静電気の滞留を防止することができるので、容器の蓋同士の密着を防ぎ、スタック後の容器の蓋を上から順に１個づつ確実に取り出すことができる容器の蓋である。尚、本発明である容器の蓋のスタック性の意味は、容器の蓋を上方に順次積み重ねていったときに崩れることなく数十枚から百枚単位で安定的に上方へ積み重ねができ、かつ、容器の蓋を１枚つづ確実に取り出しができることである。   Further, the container lid of the present invention, when the plurality of container lids are stacked upward, the lower end surface of the stack rib portion is in contact with the horizontal portion of the top plate portion of the lower container lid, Since the container lid has a gap between the thick-walled portion where the stack rib portion is not installed and the top plate portion of the lower container lid, the horizontal lower end surface of the stack rib portion of the container lid Since it becomes a shape which can contact | abut to the horizontal part of a top-plate part, it is a lid | cover of a container with very high stability of stacking of the lid | covers of a container. Furthermore, since a gap can be made constant between the thick wall portion and the top plate portion of the lower container lid, air can enter and exit from this gap, preventing pressure reduction and static electricity retention between the stacked container lids. Therefore, the container lids can be securely removed one by one in order from the top, preventing the container lids from sticking to each other. In addition, the meaning of the stackability of the container lid according to the present invention means that the container lid can be stably stacked upward in units of several tens to hundreds without collapsing when the containers are sequentially stacked upward, and The container lid can be taken out one by one with certainty.

更に、本発明の容器の蓋は、複数の容器の蓋同士が上方に積み重ねられたときに、容器の蓋の側壁部と、下方の容器の蓋の側壁部との間に０．１ｍｍから０．３ｍｍの第二隙間ができる容器の蓋であるので、薄肉形状により柔軟性がある容器の蓋を積み重ねて運搬する場合に、隣り合う容器の蓋同士が衝突しあっても、容器の蓋同士の側壁部の重なり合うところは０．１ｍｍから０．３ｍｍのスペースしかあかないため２重の壁が形成されることになるので、スタック時の剛性が大きくなり外部からの衝撃に強く変形などが発生しにくい容器の蓋である。また、前記スタックリブ部の垂直方向の高さが０．３ｍｍから０．８ｍｍを形成することで、前記スタックリブ部が設置されていない箇所の前記厚肉部と前記天板部の間に隙間を設けて、容器の蓋同士の側壁部の重なり合うところが０．１ｍｍから０．３ｍｍの隙間を設けることで、この隙間から空気の出入りがなされ、積み重なり合う容器の蓋Ａ同士の減圧や静電気の滞留を防ぎ、上から順に１個づつ確実に容器の蓋Ａを取り出すことができる。   Furthermore, the container lid of the present invention has a thickness of 0.1 mm to 0 between the side wall of the container lid and the side wall of the lower container lid when the plurality of container lids are stacked upward. Since the container lid has a second gap of 3 mm, even when the container lids that are flexible due to their thin shape are stacked and transported, even if the lids of adjacent containers collide with each other, the container lids Since there is only a space of 0.1 mm to 0.3 mm where the side walls overlap, a double wall will be formed, so the rigidity during stacking will increase and resistance to external impact will cause deformation. It is a container lid that is difficult to perform. In addition, by forming a vertical height of the stack rib portion of 0.3 mm to 0.8 mm, a gap is provided between the thick portion and the top plate portion where the stack rib portion is not installed. By providing a gap of 0.1 mm to 0.3 mm where the side wall portions of the container lids overlap each other, air enters and exits from this gap, and pressure reduction and static electricity retention between the stacked container lids A The container lids A can be reliably removed one by one in order from the top.

図１乃至図５において、本発明の容器の蓋Ａは射出成形法により０．７ｍｍ以下の肉厚寸法aによる薄肉形状にて形成し、前記容器の蓋Ａは円筒状で、ポリプロピレンやポリエチレンなどの合成樹脂材でできており、円筒状の容器本体Ｂの開口部分に設置するものである。前記容器の蓋Ａの上面には円板状の天板部５と、前記天板部５の外周から下端へ延出し、前記天板部５の外径Ｐよりも大きな内径Ｑをもつ円筒状の側壁部４とを有する。前記側壁部の内面３の中間部分全周に内側に突出したＶ形状などからなる厚肉部２と前記厚肉部２と天板部５との間に凹所６を形成することで、容器本体Ｂの開口部分に容器の蓋Ａを設置した場合、容器本体嵌合部Ｂ１は前記厚肉部２を乗り越えて前記凹所６と嵌合される。   1 to 5, the lid A of the container of the present invention is formed in a thin shape with a wall thickness dimension a of 0.7 mm or less by an injection molding method, and the lid A of the container is cylindrical, such as polypropylene or polyethylene. It is made of a synthetic resin material and is installed in the opening of the cylindrical container body B. On the upper surface of the lid A of the container, a disk-shaped top plate portion 5 and a cylindrical shape extending from the outer periphery to the lower end of the top plate portion 5 and having an inner diameter Q larger than the outer diameter P of the top plate portion 5. Side wall 4. By forming a recess 6 between the thick portion 2 and the thick portion 2 and the top plate portion 5, which protrudes inward on the entire circumference of the intermediate portion of the inner surface 3 of the side wall portion, the container When the lid A of the container is installed at the opening of the main body B, the container main body fitting portion B1 gets over the thick portion 2 and is fitted with the recess 6.

前記厚肉部２には前記天板部５と反対位置方向に突出したスタックリブ部１を８個から１２個以上設けて、複数の容器の蓋Ａが上方に順に積み重ねられた場合、前記スタックリブ部１の水平な下端面が前記天板部５の平面部に当接するので、容器の蓋Ａ同士の積み重ねの安定性が非常に高く、数十枚から１００枚単位での積み重ねにも効果を発揮するものである。   When the thick portion 2 is provided with 8 to 12 or more stack rib portions 1 projecting in the direction opposite to the top plate portion 5, and the lids A of a plurality of containers are sequentially stacked upward, the stack Since the horizontal lower end surface of the rib portion 1 comes into contact with the flat portion of the top plate portion 5, the stability of the stacking of the lids A of the container is very high, and it is also effective for stacking from several tens to 100 sheets. To demonstrate.

更に、容器の蓋Ａ同士が積み重ねられた場合に、例えば、容器の蓋Ａにスタックリブ部１を設けていなければ、薄肉形状により柔軟性がある容器の蓋Ａは、上から押された圧力で容器の蓋Ａと下方の容器の蓋Ａが重なりあっている空間に外からの空気を取り入れることができず減圧状態となったり、輸送時による振動などの摩擦により静電気が発生したりし、容器の蓋Ａ同士がくっついてしまう現象が発生してしまうが、本発明である容器の蓋Ａは、少なくとも８個から１２個以上のスタックリブ部１を均一に設置し、前記スタックリブ部１が設置されていない箇所の厚肉部２と前記天板部５の間に隙間が発生するので、前記隙間から空気の出入りがなされ、積み重なり合う容器の蓋Ａ同士の減圧や静電気の滞留を防ぎ、上から順に１個づつ確実に容器の蓋Ａを取り出すことができる。   Furthermore, when the lids A of the containers are stacked, for example, if the stack rib portion 1 is not provided on the lid A of the container, the lid A of the container that is flexible due to its thin shape is pressed from above. In the space where the lid A of the container overlaps the lid A of the lower container, it is impossible to take in air from outside, and the pressure is reduced, or static electricity is generated due to friction such as vibration during transportation, The phenomenon that the lids A of the containers stick to each other occurs. However, the lid A of the container according to the present invention has at least 8 to 12 or more stack rib portions 1 installed uniformly, and the stack rib portion 1 Since a gap is generated between the thick-walled portion 2 and the top plate portion 5 where no hood is installed, air enters and exits from the gap, preventing pressure reduction between the lids A of the stacked containers and accumulation of static electricity. , One by one from the top It can be taken out cover A downright container.

また、本発明の容器の蓋Ａは薄肉形状であるため材料代のコスト低減を行うことができるが、図１及び図３に示すとおり薄肉形状であっても、前記厚肉部２は前記壁面部の内面３の全周を補強する役目を果たし、更に、前記スタックリブ部１は前記厚肉部２を補強する役目を果たしているので、成形後の冷却で発生するそりや歪みなどの変形や、着脱の繰り返しによるそりや歪みなどの変形が起こらない容器の蓋Ａを提供することができる。 Further, since the lid A of the container of the present invention has a thin shape, the cost of the material cost can be reduced. However, even if the shape is thin as shown in FIGS. It serves to reinforce the entire circumference of the inner surface 3 of the part, and further, since the stack rib part 1 serves to reinforce the thick part 2, deformation such as warpage and distortion generated by cooling after molding, The container lid A can be provided in which deformation such as warpage or distortion due to repeated attachment and detachment does not occur.

次に、本発明の容器の蓋Ａを嵌合相手である容器本体Ｂへ嵌合させた状態を図４に示す。例えば可撓性のある紙材やポリプロピレン、ポリエチレンなどの合成樹脂材を用いて前記容器本体Ｂを成形することで、ポリプロピレンやポリエチレンなどの合成樹脂材で成形した本発明の容器の蓋Ａの伸縮性と、前記容器本体Ｂとの伸縮性並びに可撓性の作用が併用されことで、容器の蓋Ａの着脱が更に自在となる。また、被注出物の漏れ防止や品質保持をさせるためにアルミシート材や樹脂シート材などの密封シールを容器本体Ｂの開口部分に施した場合でも、容器の蓋Ａの着脱は自在に行うことができる。更に、前記天板部５の形状は図２および図３に示すように中央に凹んだ平面部があるので、前記天板部５の中央部および周辺の全面に模様や写真などが加飾されたラベルをインモールド成形などで貼着させることができるので、意匠性や装飾性に優れた容器の蓋Ａを提供することができる。   Next, FIG. 4 shows a state in which the lid A of the container of the present invention is fitted to the container body B which is a mating partner. For example, by forming the container body B using a flexible paper material or a synthetic resin material such as polypropylene or polyethylene, the expansion and contraction of the lid A of the container of the present invention formed of a synthetic resin material such as polypropylene or polyethylene. The combination of the elasticity, the stretchability and flexibility of the container main body B makes it possible to attach and detach the lid A of the container. Further, even when a sealing seal such as an aluminum sheet material or a resin sheet material is applied to the opening portion of the container body B in order to prevent leakage of the article to be poured and to maintain the quality, the container lid A can be freely attached and detached. be able to. Further, as shown in FIGS. 2 and 3, the top plate portion 5 has a flat portion that is recessed in the center, so that a pattern or a photograph is decorated on the central portion of the top plate portion 5 and the entire peripheral surface. Since the label can be stuck by in-mold molding or the like, the container lid A excellent in design and decoration can be provided.

図５においては、本発明の容器の蓋Ａ同士を積み重ねていくスタックした状態を示す。複数の容器の蓋Ａ同士が上方に積み重ねられ容器の蓋Ａのセンター同士が重なったときに、容器の蓋Ａの側壁部の内面３と、下方の容器の蓋Ａの側壁部４との間に０．１ｍｍから０．３ｍｍの出来るだけ隙間を持たせない第二隙間ｄを形成させることで、薄肉形状により柔軟性がある容器の蓋Ａを積み重ねて運搬する場合に、隣り合う容器の蓋Ａ同士が衝突しあっても、容器の蓋Ａ同士の側壁部４の重なり合うところは２重の壁が形成されるので、スタック時の剛性が大きくなり外部からの衝撃に強く変形などが発生しにくい容器の蓋Ａを提供することができる上、保管スペースの省スペース化が図れ、保管ならびに輸送などのコスト低減できる。また、積み重ねてスタックすることによる荷崩れなどで発生する商品破損などの不良も発生しない。   FIG. 5 shows a stacked state in which the lids A of the container of the present invention are stacked. When the lids A of the plurality of containers are stacked upward and the centers of the lids A of the containers are overlapped, the inner surface 3 of the side wall portion of the lid A of the container and the side wall portion 4 of the lower lid A of the container By forming a second gap d that does not have a gap as small as possible from 0.1 mm to 0.3 mm, the container lids of adjacent containers can be transported by stacking and transporting the container lid A having a thin wall shape and flexibility. Even if A collides with each other, a double wall is formed where the side walls 4 of the lids A of the container overlap each other, so that the rigidity at the time of stacking is increased, and deformation and the like are strong against external impact. In addition to providing a difficult container lid A, the storage space can be saved, and costs for storage and transportation can be reduced. In addition, there is no defect such as product breakage that occurs due to load collapse due to stacking.

図６は、スタックリブ部１ａの異なる実施形態例を示す。図６に示すとおり、容器の蓋Ａの肉厚寸法ａが０．７ｍｍ以下の薄肉形状を有する容器の蓋Ａであって、前記スタックリブ部１ａは厚肉部２との接線の勾配角度ｂが２５度から４５度とし、かつ、前記スタックリブ部１ａは垂直方向の高さｃが０．３ｍｍから０．８ｍｍを形成したスタックリブ部１ａを形成することで、０．７ｍｍ以下の肉厚寸法ａにすることで真空成形法に近い肉厚寸法ａで外観形状にバリエーションを持たせた高級感のある形状を射出成形法により形成することができる。更に、肉厚寸法ａが薄肉になれば単量を少なくすることができるので原料コストを削減することができる上、前記勾配角度ｂが２５度から４５度であり、前記スタックリブ部１ａは垂直方向の高さｃが０．３ｍｍから０．８ｍｍを形成することで、本発明である容器の蓋Ａを容器Ｂの開口部へ装着したときに前記スタックリブ部１ａは容器本体嵌合部Ｂ１へのガイドの役目を果たし、前記容器の蓋Ａを容器Ｂの開口部へ嵌め込みしやすい容器の蓋Ａである。また、前記スタックリブ部１ａの水平な下端面が天板部５の水平部に当接できる形状になるので、容器の蓋Ａ同士の積み重ねの安定性が非常に高く、数十枚から１００枚単位での積み重ねができる容器の蓋Ａである。ここでいう接線とは、
断面視において、スタックリブ部１ａの水平な下端と垂線を結ぶスタックリブ部のＲ部ｚと厚肉部頂点のＲ部ｙの両方に接する線のことをいい、また、勾配角度ｂとは、前記接線と前記厚肉部頂点のＲ部ｙを起点とした垂線とが交差する角度のことをいう。 FIG. 6 shows a different embodiment of the stack rib portion 1a. As shown in FIG. 6, the container lid A has a thin wall shape with a wall thickness dimension a of 0.7 mm or less, and the stack rib portion 1 a has a tangential gradient angle b with the thick portion 2. Is 25 to 45 degrees, and the stack rib portion 1a has a thickness of 0.7 mm or less by forming the stack rib portion 1a in which the vertical height c is 0.3 mm to 0.8 mm. By setting the dimension to a, it is possible to form a high-quality shape with a variation in the appearance shape with a thickness dimension a close to the vacuum forming method by the injection molding method. Further, if the thickness a is thin, the amount can be reduced, so that the raw material cost can be reduced, and the gradient angle b is 25 degrees to 45 degrees, and the stack rib portion 1a is vertical. By forming the height c in the direction from 0.3 mm to 0.8 mm, the stack rib portion 1a is placed in the container body fitting portion B1 when the container lid A according to the present invention is attached to the opening of the container B. This is a container lid A that serves as a guide to the container and is easy to fit the container lid A into the opening of the container B. In addition, since the horizontal lower end surface of the stack rib portion 1a can be brought into contact with the horizontal portion of the top plate portion 5, the stacking stability between the lids A of the container is very high. A container lid A that can be stacked in units. The tangent here is
In cross-sectional view, it refers to a line in contact with both the R portion z of the stack rib portion connecting the vertical lower end of the stack rib portion 1a and the perpendicular portion and the R portion y of the thick portion vertex , and the gradient angle b is The angle at which the tangent line intersects the perpendicular line starting from the R portion y at the apex of the thick part .

図７においては、本発明の容器の蓋Ａ同士を積み重ねていくスタックした状態をスタックリブ部１ａの異なる実施形態を例とした場合で示す。容器の蓋Ａの上に同方向の容器の蓋Ａを積み重ねていくと、前記容器の蓋Ａの天板部５の周縁付近に上方に設置された容器の蓋Ａのスタックリブ部１ａの水平な下端面が前記天板部５の水平部に当接するので、容器の蓋Ａ同士の積み重ねの安定性が非常に高く、数十枚から１００枚単位での積み重ねにも効果を発揮するものである。また、スタックリブ部１ａの設置数については、前記天板部５と反対位置方向に突出したスタックリブ部１ａを８個から１２個以上に均一に設けることで、より積み重ねを安定させることができる。   In FIG. 7, a stacked state in which the lids A of the container of the present invention are stacked is shown as an example of a different embodiment of the stack rib portion 1 a. When the container lid A in the same direction is stacked on the container lid A, the horizontal position of the stack rib portion 1a of the container lid A installed in the vicinity of the periphery of the top plate portion 5 of the container lid A will be described. Since the lower end surface is in contact with the horizontal part of the top plate part 5, the stability of stacking the lids A of the container is very high, and it is effective for stacking in units of several tens to 100 sheets. is there. Further, regarding the number of stack rib portions 1a, stacking can be further stabilized by uniformly providing 8 to 12 or more stack rib portions 1a protruding in the direction opposite to the top plate portion 5. .

更に、複数の容器の蓋Ａ同士が上方に積み重ねられ容器の蓋Ａのセンター同士が重なったときに、容器の蓋Ａの側壁部の内面３と、下方の容器の蓋Ａの側壁部４との間に０．１ｍｍから０．３ｍｍの出来るだけ隙間を持たせない第二隙間ｄを形成させることで、薄肉形状により柔軟性がある容器の蓋Ａを積み重ねて運搬する場合に、隣り合う容器の蓋Ａ同士が衝突しあっても、容器の蓋Ａ同士の側壁部４の重なり合うところは２重の壁が形成されるので、スタック時の剛性が大きくなり外部からの衝撃に強く変形などが発生しにくい容器の蓋Ａを提供することができる。 Furthermore, when the lids A of the plurality of containers are stacked upward and the centers of the lids A of the containers overlap each other, the inner surface 3 of the side wall portion of the lid A of the container and the side wall portion 4 of the lower lid A of the container When the lid A of the container having flexibility due to the thin wall shape is stacked and transported by forming a second gap d that does not have a gap of 0.1 mm to 0.3 mm as much as possible, the adjacent containers Even if the lids A collide with each other, a double wall is formed where the side wall portions 4 of the lids A of the container overlap with each other. It is possible to provide the lid A of the container that is not easily generated.

また、仮に積み重ねによるセンター位置がづれたとしても、下方の容器の蓋Ａの側壁部４との間に０．１ｍｍから０．３ｍｍの出来るだけ隙間を持たせない第二隙間ｄを形成させることで、設置されているスタックリブ部１ａのほとんどが、前記スタックリブ部１ａの水平な下端面が前記天板部５の水平部に当接するので、容器の蓋Ａ同士の積み重ねの安定性が非常に高く、数十枚から１００枚単位での積み重ねにも効果を発揮し、保管スペースの省スペース化が図れ、保管ならびに輸送などのコスト低減できる。更に、積み重ねてスタックすることによる荷崩れなどで発生する商品破損などの不良も発生しない。   Moreover, even if the center position by stacking is shifted, a second gap d that does not have a gap of 0.1 mm to 0.3 mm as much as possible is formed between the side wall portion 4 of the lid A of the lower container. In most of the installed stack rib portions 1a, the horizontal lower end surface of the stack rib portion 1a comes into contact with the horizontal portion of the top plate portion 5, so that the stability of stacking the lids A of the containers is extremely high. It is also effective for stacking several tens to 100 sheets, saving storage space, and reducing costs for storage and transportation. Furthermore, defects such as merchandise breakage that occurs due to load collapse due to stacking and stacking do not occur.

また、容器の蓋Ａ同士が積み重ねられた場合に、例えば、容器の蓋Ａにスタックリブ部１ａを設けていなければ、薄肉形状により柔軟性がある容器の蓋Ａは、上から押された圧力で容器の蓋Ａと下方の容器の蓋Ａが重なりあっている空間に外からの空気を取り入れることができず減圧状態となったり、輸送時による振動などの摩擦により静電気が発生したりし、容器の蓋Ａ同士がくっついてしまう現象が発生してしまうが、本発明である容器の蓋Ａは、少なくとも８から１２個以上のスタックリブ部１ａを均一に設置し、前記スタックリブ部１ａの垂直方向の高さｃが０．３ｍｍから０．８ｍｍを形成することで、前記スタックリブ部１ａが設置されていない箇所の前記厚肉部２と前記天板部５の間に隙間を設けて、容器の蓋Ａ同士の側壁部４の重なり合うところが０．１ｍｍから０．３ｍｍの隙間を設けることで、前記隙間から空気の出入りがなされ、積み重なり合う容器の蓋Ａ同士の減圧や静電気の滞留を防ぎ、上から順に１個づつ確実に容器の蓋Ａを取り出すことができる。   Further, when the container lids A are stacked, for example, if the stack rib portion 1a is not provided in the container lid A, the container lid A, which is flexible due to its thin shape, is pressed from above. In the space where the lid A of the container overlaps the lid A of the lower container, it is impossible to take in air from outside, and the pressure is reduced, or static electricity is generated due to friction such as vibration during transportation, Although the phenomenon that the lids A of the containers stick to each other will occur, the lid A of the container according to the present invention has at least 8 to 12 or more stack rib portions 1a installed uniformly, and the stack rib portions 1a By forming the height c in the vertical direction from 0.3 mm to 0.8 mm, a gap is provided between the thick portion 2 and the top plate portion 5 where the stack rib portion 1a is not installed. , Side wall part between container lids A By providing a gap of 0.1 mm to 0.3 mm in the overlapping area, air enters and exits from the gap, prevents pressure reduction and accumulation of static electricity between the lids A of the stacked containers, and ensures one by one in order from the top. The container lid A can be removed.

本発明の実施形態である容器の蓋を示す斜視図である。It is a perspective view which shows the cover of the container which is embodiment of this invention. 同実施形態の平面図である。It is a top view of the embodiment. 同実施形態の断面図である。It is sectional drawing of the same embodiment. 同実施形態の容器の蓋を容器本体に嵌合させた断面図である。It is sectional drawing which fitted the cover of the container of the embodiment to the container main body. 同実施形態の容器の蓋を積み重ねてスタックする断面図である。It is sectional drawing which accumulates and stack | stacks the lid | cover of the container of the embodiment. 本発明の異なる実施形態を示すスタックリブ部周辺の断面図である。It is sectional drawing of the stack rib part periphery which shows different embodiment of this invention. 図６の容器の蓋を積み重ねてスタックする断面図である。It is sectional drawing which stacks | stacks the lid | cover of the container of FIG.

符号の説明Explanation of symbols

１ スタックリブ部
１ａ スタックリブ部
２ 厚肉部
３ 側壁部の内面
４ 側壁部
５ 天板部
６ 凹所
Ａ 容器の蓋
Ｂ 容器本体
Ｂ１ 容器本体嵌合部
Ｐ 外径
Ｑ 内径
ａ 肉厚寸法
ｂ 勾配角度
ｃ 垂直方向の高さ
ｄ 第二隙間
ｙ 厚肉部頂点のＲ部
ｚ スタックリブ部のＲ部 DESCRIPTION OF SYMBOLS 1 Stack rib part 1a Stack rib part 2 Thick part 3 Inner surface of a side wall part 4 Side wall part 5 Top plate part
6 Concave A Container lid B Container body B1 Container body fitting part P Outer diameter Q Inner diameter a Thickness dimension b Gradient angle c Vertical height d Second gap y Thick part R stack z R part of

Claims (3)

円板状の天板部と、前記天板部の外周から下端へ延出し、前記天板部の外径よりも大きな内径をもつ円筒状の側壁部とを有する合成樹脂材でできた容器の蓋であって、前記容器の蓋は射出成形法により厚肉部以外は０．７ｍｍ以下の肉厚となる薄肉で形成し、前記側壁部の中間部分に内側に突出する厚肉部を設けて前記厚肉部と天板部との間に凹所を形成するとともに、前記厚肉部には前記天板部と反対位置方向に突出した複数のスタックリブ部を設けて、断面視において、スタックリブ部の水平な下端と垂線を結ぶスタックリブ部のＲ部（ｚ）と厚肉部頂点のＲ部（ｙ）の両方に接する線と、前記厚肉部頂点のＲ部（ｙ）を起点とした垂線とが交差する勾配角度（ｂ）は２５度から４５度であり、かつ、前記スタックリブ部は垂直方向の高さ（ｃ）が０．３ｍｍから０．８ｍｍであることを特徴とする容器の蓋。 A container made of a synthetic resin material having a disk-shaped top plate portion and a cylindrical side wall portion extending from the outer periphery of the top plate portion to the lower end and having an inner diameter larger than the outer diameter of the top plate portion. The lid of the container is formed by a thin wall having a thickness of 0.7 mm or less except for the thick wall portion by an injection molding method, and a thick wall portion projecting inward is provided at an intermediate portion of the side wall portion. A recess is formed between the thick wall portion and the top plate portion, and the thick wall portion is provided with a plurality of stack rib portions projecting in the direction opposite to the top plate portion, so that in the cross-sectional view, the stack The line that touches both the R part (z) of the stack rib part and the R part (y) of the thick part apex that connects the horizontal lower end of the rib part and the perpendicular, and the R part (y) of the thick part apex start The inclination angle (b) at which the perpendicular intersects the vertical line is 25 to 45 degrees, and the stack rib portion has a height in the vertical direction. The lid of the container, characterized in that (c) is 0.8mm from 0.3 mm. 複数の容器の蓋同士が上方に積み重ねられたときに、前記スタックリブ部の下端面が下方の容器の蓋の天板部の水平部に当接するとともに、前記スタックリブ部が設置されていない箇所の前記厚肉部と下方の容器の蓋の前記天板部の間に隙間ができることを特徴とする請求項１に記載の容器の蓋。   When the lids of a plurality of containers are stacked on top, the lower end surface of the stack rib part comes into contact with the horizontal part of the top plate part of the lower container lid, and the stack rib part is not installed The container lid according to claim 1, wherein a gap is formed between the thick-walled portion and the top plate portion of the lower container lid. 複数の容器の蓋同士が上方に積み重ねられたときに、容器の蓋の側壁部と、下方の容器の蓋の側壁部との間に０．１ｍｍから０．３ｍｍの第二隙間ができることを特徴とする請求項１または請求項２に記載の容器の蓋。   When the lids of a plurality of containers are stacked upward, a second gap of 0.1 mm to 0.3 mm is formed between the side wall of the container lid and the side wall of the lower container lid. The container lid according to claim 1 or 2.
JP2006297249A 2006-01-05 2006-11-01 Container lid Active JP4077494B2 (en)

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