JP2012153382A - Container lid - Google Patents
Container lid Download PDFInfo
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- JP2012153382A JP2012153382A JP2011012205A JP2011012205A JP2012153382A JP 2012153382 A JP2012153382 A JP 2012153382A JP 2011012205 A JP2011012205 A JP 2011012205A JP 2011012205 A JP2011012205 A JP 2011012205A JP 2012153382 A JP2012153382 A JP 2012153382A
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- lid
- container
- cut portion
- straw
- cut
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- 239000010902 straw Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 abstract description 31
- 235000013361 beverage Nutrition 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 239000003550 marker Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Closures For Containers (AREA)
Abstract
Description
本発明は、容器本体の開口部に対して着脱自在であり、ストローを挿入するための切り込み部を有する容器用蓋に関する。 The present invention relates to a container lid that is detachable with respect to an opening of a container body and has a cut portion for inserting a straw.
従来、アイスコーヒー等の飲料を入れる容器には、容器本体に蓋を嵌合させるものが用いられてきた。図８に従来の嵌合蓋付き容器の一例を示す。同図に示す嵌合蓋付き容器９０は、容器本体９１と、容器本体９１に対して着脱自在の嵌合蓋９５とを備える。従来の容器にあっては、液体を収容した状態で傾けると、容器本体と嵌合蓋の隙間やストローを挿入するための切り込み部９７から液体が漏れるという問題があった。 Conventionally, a container in which a lid is fitted to a container body has been used as a container for a beverage such as iced coffee. FIG. 8 shows an example of a conventional container with a fitting lid. A container 90 with a fitting lid shown in the figure includes a container main body 91 and a fitting lid 95 detachably attached to the container main body 91. In the case of the conventional container, there is a problem that if the liquid is tilted in a state where the liquid is stored, the liquid leaks from a gap between the container body and the fitting lid or a notch 97 for inserting a straw.
特許文献１には、ストローを挿入するための切り込み部から飲料が漏れるのを防止することを目的とした飲料容器用蓋が開示されている。この文献に記載の蓋は、切込線部の途中に非切込部を有するものである。 Patent Document 1 discloses a lid for a beverage container for the purpose of preventing a beverage from leaking from a cut portion for inserting a straw. The lid described in this document has a non-cut portion in the middle of the cut line portion.
ところで、特許文献１に記載の飲料容器用蓋は、切込線部にストローを挿入する際、ストローによって非切込部を切断する必要がある。その際、非切込部の破片が飲料に混入するおそれがある。また、非切込部の存在により、蓋にストローを突き刺しにくくなり、ストローが折れ曲がるなどの問題を招来する。 By the way, the lid | cover for drink containers of patent document 1 needs to cut | disconnect a non-cut part by a straw, when inserting a straw into a cut line part. In that case, there exists a possibility that the fragment of a non-cut part may mix in a drink. Further, the presence of the non-cut portion makes it difficult to pierce the lid with the straw, and causes problems such as bending of the straw.
本発明は、ストローを挿入するための切り込み部から液体が漏れるのを十分に防止できる容器用蓋を提供することを目的とする。 An object of this invention is to provide the container lid which can fully prevent that a liquid leaks from the cut | notch part for inserting a straw.
本発明に係る容器用蓋は、容器本体の開口部に対して着脱自在であり、ストローを挿入するための十字形状の切り込み部を有するものであって、当該蓋の一方面上において、切り込み部はその中心から端部に向けて幅が狭くなっていることを特徴とする。 The container lid according to the present invention is detachable with respect to the opening of the container body and has a cross-shaped cut portion for inserting a straw, and the cut portion is formed on one surface of the lid. Is characterized in that its width is narrowed from its center to its end.
本発明において、切り込み部の形状は十字形状に限定されるものではない。本発明に係る容器用蓋は、容器本体の開口部に対して着脱自在であり、ストローを挿入するための切り込み部を有し、切り込み部の端部が尖形であることを特徴とするものであってもよい。 In the present invention, the shape of the notch is not limited to a cross shape. The container lid according to the present invention is detachable with respect to the opening of the container body, has a notch for inserting a straw, and the end of the notch is pointed. It may be.
従来の容器用蓋は、ストローを挿入する前であっても十字形状の切り込み部を形成する４つの片の断面が互いに当接せず、図９に示すように、上下にズレやすい。同図に示すような状態の蓋が嵌められた容器に収容した飲料は、容器が傾くと切り込み部から漏れ出てしまう。これに対し、本発明の容器用蓋は、切り込み部の端部を尖形としたことで、特に、十字形状の切り込み部の場合は、切り込み部の中心から端部に向けて幅が狭くなるように設けたことで、切り込み部を形成する４つの片が上下にズレにくくなり、両者が当接した状態を十分に維持しやすい。これにより、切り込み部から液体が漏れるのを十分に防止できる。 In the conventional container lid, the cross-sections of the four pieces forming the cross-shaped cut portions do not contact each other even before the straw is inserted, and as shown in FIG. When the container is tilted, the beverage stored in the container fitted with the lid in the state shown in the figure leaks out from the cut portion. In contrast, the container lid of the present invention has a sharpened end portion of the cut portion, and in particular, in the case of a cross-shaped cut portion, the width becomes narrower from the center of the cut portion toward the end portion. By providing in this way, the four pieces forming the cut portion are less likely to be displaced vertically, and it is easy to sufficiently maintain the state in which the two pieces are in contact. Thereby, it can fully prevent that a liquid leaks from a notch part.
また、本発明の容器用蓋は、特許文献１に記載の飲料容器用蓋のような非切込部を有するものではないので、破片が飲料に混入するおそれはなく、また、比較的弱い力でストローを切り込み部に突き刺すことができる。 Moreover, since the container lid of the present invention does not have a non-incised portion like the beverage container lid described in Patent Document 1, there is no possibility that debris will be mixed into the beverage, and a relatively weak force. With this, the straw can be stabbed into the notch.
本発明において、切り込み部から液体が漏れるのをより高度に防止する観点から、切り込み部の端部は、当該蓋の法線方向に対して傾斜するように設けられており、当該蓋の一方面から他方面にかけて貫通していない部分を有することが好ましい（図４参照）。 In the present invention, from the viewpoint of highly preventing liquid from leaking from the cut portion, the end portion of the cut portion is provided to be inclined with respect to the normal line direction of the lid, and one side of the lid It is preferable to have a portion that does not penetrate from the first surface to the other surface (see FIG. 4).
本発明の容器用蓋は、容器本体の開口部に当該蓋を嵌めたとき、容器から遠ざかる方向に隆起する部分を有し、当該部分に切り込み部が形成されていることが好ましい。切り込み部を設ける位置を容器本体から遠ざけることで、容器が揺れても切り込み部に飲料が到達しにくくなり、飲料が切り込み部から漏れるのをより一層十分に防止できる。 The container lid of the present invention preferably has a portion that protrudes away from the container when the lid is fitted to the opening of the container body, and a cut portion is formed in the portion. By separating the position where the cut portion is provided from the container main body, it is difficult for the beverage to reach the cut portion even if the container is shaken, and the beverage can be more sufficiently prevented from leaking from the cut portion.
本発明によれば、ストローを挿入するための切り込み部から液体が漏れるのを十分に防止できる。 According to the present invention, it is possible to sufficiently prevent liquid from leaking from the cut portion for inserting the straw.
図１−４を参照しながら、本発明に係る容器用蓋（以下。単に「蓋」という。）５を備えた嵌合蓋付き容器（以下、単に「容器」という。）１０について説明する。 A container 10 with a fitting lid (hereinafter simply referred to as “container”) 10 provided with a container lid (hereinafter simply referred to as “lid”) 5 according to the present invention will be described with reference to FIGS.
容器１０は、開口部１１ａを有する容器本体１１と、容器本体１１に対して着脱自在の蓋５とを備える。蓋５及び容器本体１１をなす材料としては、プラスチック、紙、発泡スチロールなどが挙げられる。これらの材料のうち、加工性や機械的強度、デザイン性等の観点から透明なプラスチック材料（例えば、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリスチレン（ＰＳ）、ポリエチレンテレフタレート（ＰＥＴ））が好ましい。蓋５の材料と容器本体１１の材料は、同じであってもよいし、互いに異なっていてもよい。 The container 10 includes a container main body 11 having an opening 11 a and a lid 5 that is detachable from the container main body 11. Examples of the material forming the lid 5 and the container main body 11 include plastic, paper, and polystyrene foam. Among these materials, transparent plastic materials (for example, polypropylene (PP), polyethylene (PE), polystyrene (PS), polyethylene terephthalate (PET)) are preferable from the viewpoints of processability, mechanical strength, design, and the like. The material of the lid 5 and the material of the container body 11 may be the same or different from each other.
蓋５は、図１に示すとおり、ストローを挿入するための十字形状の切り込み部７を中央部分に有する。切り込み部７は、図３に示すとおり、蓋５の外側面Ｆ１上において、その中心Ａから端部Ｂに向けて幅が狭くなり、端部Ｂは尖形となっている。外側面Ｆ１上の中心Ａの幅（図３の幅Ｗ）は、１０００μｍ以下であることが好ましく、５００μｍ以下であることがより好ましい。この幅が１０００μｍを超えると、液漏れしやすくなる。十字形状の切り込み部７の一方のラインの長さ（図３の長さＬ）は、２〜５０ｍｍであることが好ましく、５〜３０ｍｍであることがより好ましい。この長さが２ｍｍ未満であると、ストローが挿入しにくくなり、５０ｍｍを超えると、内容物の内圧によって当接部が変形し、液体が漏れやすい。なお、図３は、切り込み部７の幅Ｗを誇張して図示しており、上記の寸法とは必ずしも一致しない。また、切り込み部７は少なくとも端部Ｂが尖形であればよく、必ずしも図３に示すように中心Ａから端部Ｂに向けて連続的に幅が狭くなる態様でなくてもよく、例えば、中心Ａから端部Ｂの間に幅が一定の部分があってもよい。 As shown in FIG. 1, the lid 5 has a cross-shaped cut portion 7 for inserting a straw in the center portion. As shown in FIG. 3, the cut portion 7 has a width that decreases from the center A toward the end B on the outer surface F <b> 1 of the lid 5, and the end B has a pointed shape. The width of the center A on the outer side surface F1 (width W in FIG. 3) is preferably 1000 μm or less, and more preferably 500 μm or less. If this width exceeds 1000 μm, liquid leakage tends to occur. The length of one line of the cross-shaped cut portion 7 (length L in FIG. 3) is preferably 2 to 50 mm, and more preferably 5 to 30 mm. When this length is less than 2 mm, it becomes difficult to insert a straw, and when it exceeds 50 mm, the contact portion is deformed by the internal pressure of the contents, and the liquid easily leaks. FIG. 3 exaggerates the width W of the cut portion 7 and does not necessarily match the above dimensions. Further, the cut portion 7 may be at least the end portion B as long as it has a pointed shape, and does not necessarily have a mode in which the width continuously decreases from the center A toward the end portion B as shown in FIG. There may be a portion having a constant width between the center A and the end B.
上記態様の切り込み部７を蓋５に設けたことで、切り込み部７を形成する４つの片７ａ−７ｄが上下にズレにくくなり、これらの片の端面が当接した状態を十分に維持しやすい。これにより、切り込み部７から液体が漏れるのを十分に防止できる。 By providing the cut portion 7 of the above-described aspect on the lid 5, the four pieces 7a-7d forming the cut portion 7 are not easily displaced vertically, and it is easy to sufficiently maintain the state in which the end surfaces of these pieces are in contact with each other. . Thereby, it can fully prevent that the liquid leaks from the cut | notch part 7. FIG.
切り込み部７から液体が漏れるのをより高度に防止する観点から、図４に示すように、切り込み部７の端部は、蓋５の法線方向（図４の矢印Ｚ）に対して傾斜するように設けられており、蓋５の外側面Ｆ１から内側面Ｆ２にかけて貫通していない部分５ａを有することが好ましい。図４は、図３のＩＶ−ＩＶ線における断面図であり、十字形状の切り込み部７の一方のラインの延在方向であり且つ蓋５の法線方向Ｚの断面を示す図である。端部の傾斜角（図４の角度α）は、３〜８０°であることが好ましく、５〜３０°であることがより好ましい。この角度が３°未満であると、ライン長さ（Ｌ）の貫通する部分が小さくなりストロー挿入がしづらくなり、８０°を超えると、端部が尖形にならず、液体が漏れやすい。 From the viewpoint of preventing liquid from leaking from the cut portion 7 to a higher degree, as shown in FIG. 4, the end portion of the cut portion 7 is inclined with respect to the normal direction of the lid 5 (arrow Z in FIG. 4). It is preferable to have a portion 5a that is provided so as not to penetrate from the outer surface F1 to the inner surface F2 of the lid 5. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3, and is a diagram showing a cross section in the normal direction Z of the lid 5 along the extending direction of one line of the cross-shaped cut portion 7. The inclination angle of the end (angle α in FIG. 4) is preferably 3 to 80 °, and more preferably 5 to 30 °. If this angle is less than 3 °, the portion through which the line length (L) penetrates becomes small, making it difficult to insert a straw, and if it exceeds 80 °, the end does not become pointed and the liquid tends to leak.
なお、蓋５の外側及び内側と、切り込み部７の端部の傾斜の向きとの関係は、図３,４に示したものに限定されず、逆の関係であってもよい。 The relationship between the outside and inside of the lid 5 and the inclination direction of the end of the cut portion 7 is not limited to that shown in FIGS. 3 and 4 and may be reversed.
蓋５は、容器本体１１に蓋５を嵌めたとき、容器本体１１から遠ざかる方向に隆起した部分６を有し、図１に示すように、この部分６に切り込み部７が形成されていることが好ましい。切り込み部７を設ける位置を容器本体１１から遠ざけることで、容器１０が揺れても切り込み部７に飲料が到達しにくくなり、飲料が切り込み部７から漏れるのをより一層十分に防止できる。 The lid 5 has a portion 6 protruding in a direction away from the container main body 11 when the lid 5 is fitted to the container main body 11, and a cut portion 7 is formed in this portion 6 as shown in FIG. 1. Is preferred. By separating the position where the cut portion 7 is provided from the container main body 11, it is difficult for the beverage to reach the cut portion 7 even when the container 10 is shaken, and the beverage can be further prevented from leaking from the cut portion 7.
蓋５の爪部５ｃは、蓋５の周縁部からその全周にわたって容器本体１１の方向に延在している。爪部５ｃは、先端の内径がフランジ１２の外径よりもやや大きくなっており、蓋５をフランジ１２に装着しやすいようになっている。 The claw portion 5 c of the lid 5 extends from the peripheral portion of the lid 5 in the direction of the container body 11 over the entire circumference. The claw portion 5 c has a tip whose inner diameter is slightly larger than the outer diameter of the flange 12, so that the lid 5 can be easily attached to the flange 12.
上記のような切り込み部７を有する蓋５は以下のようにして作製できる。まず、切り込み部７が形成されていない蓋を準備する。この蓋の中心部にカッターを押し当てて半径方向に直線的に切り込みを入れ、端部に近づくにつれてカッターに加える力を徐々に弱くする。このような作業を９０度ずつ回転させて４回行えばよい。カッターの代わりにレーザを用いてもよい。この場合、切り込み部７の中央付近には強いレーザを照射し、端部に近づくにつれて弱いレーザを照射すればよい。 The lid 5 having the cut portion 7 as described above can be manufactured as follows. First, a lid on which the cut portion 7 is not formed is prepared. The cutter is pressed against the center of the lid to make a linear cut in the radial direction, and the force applied to the cutter is gradually weakened as it approaches the end. Such work may be performed four times by rotating by 90 degrees. A laser may be used instead of the cutter. In this case, a strong laser may be irradiated near the center of the cut portion 7, and a weak laser may be irradiated as it approaches the end portion.
レーザを用いて切り込み部７を形成する場合、レーザマーカとして３次元制御可能なマーカ（例えば、ＣＯ２レーザマーカ（ＭＬ−Ｚ９５００シリーズ、株式会社キーエンス製））を準備し、外部入力にて、アナログ信号をレーザマーカへ入力することによって、連続的にレーザマーカの焦点を変化させればよい。より具体的には、Ｚ軸スキャナー（焦点を変化させる装置）を制御し、線の端では焦点をずらせておいて、十字形状の切り込み部７の中心Ａでは焦点を合わす位置に来るように、中心Ａを越えて端部Ｂに向かうほど、また焦点をずらせるように設定する。この制御を、交差させる２本の線ともに設定することによって、中心Ａの付近ほど強くレーザを当てることができる。 When forming the cut portion 7 using a laser, a marker that can be controlled three-dimensionally (for example, a CO 2 laser marker (ML-Z9500 series, manufactured by Keyence Corporation)) is prepared as a laser marker. What is necessary is just to change the focus of a laser marker continuously by inputting into a laser marker. More specifically, the Z-axis scanner (device for changing the focal point) is controlled so that the focal point is shifted at the end of the line, and the focal point is at the center A of the cross-shaped cutout 7. It is set so that the focal point is shifted further toward the end B beyond the center A. By setting this control for both the two intersecting lines, the laser can be applied more strongly near the center A.
蓋５によれば、切り込み部７から液体が漏れるのを十分に防止できる。なお、蓋５と容器本体１１のフランジ１２との間から液体が漏れるのを十分に防止するには、容器本体１１として以下の態様のものを使用することが好ましい。 According to the lid 5, it is possible to sufficiently prevent liquid from leaking from the cut portion 7. In order to sufficiently prevent liquid from leaking from between the lid 5 and the flange 12 of the container main body 11, it is preferable to use the container main body 11 having the following aspect.
図２の（ａ）に示す通り、容器本体１１は、有底容器からなり、底部１１ｂから上方の開口部１１ａに向けて径が拡大する胴部１１ｃを有する。開口部１１ａの周囲には、開口部１１ａから略水平方向に延在するフランジ１２が形成されている。フランジ１２は蓋５の内面５ｂと当接する上面１２ａを有する。この上面１２ａは、容器本体１１の上端をなしており、開口部１１ａの全周にわたって開口部１１ａから外側に延びている。なお、容器本体１１の胴部１１ｃは、上記の形状に限定されるものではない。 As shown in FIG. 2A, the container body 11 is a bottomed container, and has a trunk portion 11c whose diameter increases from the bottom portion 11b toward the upper opening portion 11a. Around the opening 11a, a flange 12 extending in a substantially horizontal direction from the opening 11a is formed. The flange 12 has an upper surface 12 a that contacts the inner surface 5 b of the lid 5. The upper surface 12a forms the upper end of the container body 11, and extends outward from the opening 11a over the entire circumference of the opening 11a. In addition, the trunk | drum 11c of the container main body 11 is not limited to said shape.
フランジ１２の上面１２ａには開口部１１ａを囲むように、開口部１１ａと同心円状の溝１２ｂが設けられている。図２の（ｂ）に拡大して示す通り、フランジ１２と蓋５が嵌合したとき、溝１２ｂと蓋５の周縁部の内面５ｂとによって開口部１１ａを囲む環状の空間Ｓ１が画成される。より具体的には、環状の空間Ｓ１は、開口部１１ａの周りを一周するように連続的に画成される。なお、図２の（ｂ）には、断面形状が円弧状の溝１２ｂを図示したが、溝の断面形状はこれに限定されず、方形状や三角形状であってもよい。 An upper surface 12a of the flange 12 is provided with a groove 12b concentric with the opening 11a so as to surround the opening 11a. As shown in FIG. 2B in an enlarged manner, when the flange 12 and the lid 5 are fitted, an annular space S1 surrounding the opening 11a is defined by the groove 12b and the inner surface 5b of the peripheral edge of the lid 5. The More specifically, the annular space S1 is continuously defined so as to go around the opening 11a. In FIG. 2B, the groove 12b having an arc shape in cross section is illustrated, but the cross section shape of the groove is not limited to this, and may be a square shape or a triangular shape.
溝１２ｂの上面１２ａにおける幅は、好ましくは０．１ｍｍ〜３ｍｍであり、より好ましくは０．２ｍｍ〜２．５ｍｍであり、更に好ましくは０．５ｍｍ〜２ｍｍである。溝１２ｂの幅が０．１ｍｍ未満であると液漏れ防止効果が不十分となりやすく、他方、３ｍｍ超とするにはこれに対応するサイズのフランジ１２を要し、デザイン性が不十分となりやすい。 The width of the upper surface 12a of the groove 12b is preferably 0.1 mm to 3 mm, more preferably 0.2 mm to 2.5 mm, and still more preferably 0.5 mm to 2 mm. If the width of the groove 12b is less than 0.1 mm, the effect of preventing liquid leakage tends to be insufficient. On the other hand, if it exceeds 3 mm, the flange 12 of a size corresponding to this is required, and the design is likely to be insufficient.
溝１２ｂの深さは、好ましくは０．１ｍｍ〜３ｍｍであり、より好ましくは０．１ｍｍ〜１ｍｍであり、更に好ましくは０．２ｍｍ〜０．５ｍｍである。溝１２ｂの深さが０．１ｍｍ未満であると液漏れ防止効果が不十分となりやすく、他方、３ｍｍ超とするにはこれに対応するサイズのフランジ１２を要し、デザイン性が不十分となりやすい。 The depth of the groove 12b is preferably 0.1 mm to 3 mm, more preferably 0.1 mm to 1 mm, and still more preferably 0.2 mm to 0.5 mm. If the depth of the groove 12b is less than 0.1 mm, the effect of preventing liquid leakage tends to be insufficient. On the other hand, if it exceeds 3 mm, the flange 12 of a size corresponding to this is required, and the design is likely to be insufficient. .
フランジ１２の上面１２ａと蓋５の内面５ｂは、溝１２ｂの部分を除き、なるべく離間せずに当接していることが好ましい。容器１０内に収容する液体の粘度等にもよるが、両者の離間距離は、好ましくは２ｍｍ以下であり、より好ましくは１ｍｍ以下であり、更に好ましくは０．５ｍｍ以下である。 The upper surface 12a of the flange 12 and the inner surface 5b of the lid 5 are preferably in contact with each other as far as possible, except for the groove 12b. Although it depends on the viscosity of the liquid contained in the container 10, the distance between the two is preferably 2 mm or less, more preferably 1 mm or less, and further preferably 0.5 mm or less.
本実施形態に係る容器１０によれば、液体を入れた状態で容器１０を傾けても、上記態様の切り込み部７を設けたことで切り込み部７から液体が漏れるのを高度に防止でき、また、フランジ１２の上面１２ａに溝１２ｂを設けたことでフランジ１２と蓋５の隙間から液体が漏れるのを十分に防止できる。なお、フランジ１２に溝１２ｂを設けたことで、フランジ１２と蓋５の隙間から液体が漏れるのを十分に防止できる主因は必ずしも明らかではないが、容器１０を傾けた際、液体がフランジ１２と蓋５の間の環状の空間（溝１２ｂ）に入り込むことによって生じる毛細管現象が関係していると本発明者らは推察する。 According to the container 10 according to the present embodiment, even if the container 10 is tilted in a state where the liquid is put, it is possible to highly prevent the liquid from leaking from the cut portion 7 by providing the cut portion 7 of the above aspect. By providing the groove 12b on the upper surface 12a of the flange 12, the liquid can be sufficiently prevented from leaking from the gap between the flange 12 and the lid 5. It should be noted that the provision of the groove 12b in the flange 12 does not necessarily reveal the main reason that the liquid can be sufficiently prevented from leaking from the gap between the flange 12 and the lid 5, but when the container 10 is tilted, the liquid is separated from the flange 12. The present inventors infer that the capillary phenomenon generated by entering the annular space (groove 12b) between the lids 5 is related.
以上、本発明の好適な実施形態について詳細に説明したが、本発明は上記実施形態に限定されるものではない。例えば、切り込み部７の形状は十字形状に限定されず、例えば、略Ｃ字形状、略Ｈ字形状、略Ｌ字形状、略Ｎ字形状、略Ｓ字形状、略Ｔ字形状、略Ｕ字形状、略Ｖ字形状、略Ｗ字形状、略Ｙ字形状又は略コ字形状であってもよい。これらの場合、切り込み部７の端部を尖形とし、必要に応じて、切り込み部の端部を傾斜面（図４参照）としたりすることが好ましい。 The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the above embodiment. For example, the shape of the cut portion 7 is not limited to a cross shape, and for example, a substantially C shape, a substantially H shape, a substantially L shape, a substantially N shape, a substantially S shape, a substantially T shape, and a substantially U shape. It may be a shape, a substantially V shape, a substantially W shape, a substantially Y shape, or a substantially U shape. In these cases, it is preferable that the end portion of the cut portion 7 has a pointed shape and the end portion of the cut portion has an inclined surface (see FIG. 4) as necessary.
また、上記実施形態においては、特に好ましい例として容器本体１１としてフランジ１２に環状の溝１２ｂが形成されたものを採用する場合を挙げたが、フランジ１２に溝１２ｂが形成されていないものを採用してもよい。 Moreover, in the said embodiment, although the case where the thing with the cyclic | annular groove | channel 12b formed in the flange 12 was employ | adopted as a container main body 11 as a particularly preferable example, the thing in which the groove | channel 12b is not formed in the flange 12 is employ | adopted. May be.
＜液漏れ試験＞
（実施例１）
ストローを刺すための切り込み部からの液漏れの有無を確認するため、図１，２に示す蓋５と同様の構成の蓋を有する容器（満杯容量４２０ｍＬ、ＰＰ製）を３つ準備し、液漏れ試験を行った。それぞれの容器内に３００ｍＬの水を入れ、図５に示すように、容器を９０°傾けた。この状態を５分間にわたって保持し、切り込み部からの液漏れの有無を評価した。その結果、いずれの容器について試験開始から５分後でも液漏れは認められなかった。
<Liquid leak test>
Example 1
In order to confirm the presence or absence of liquid leakage from the notch for piercing the straw, three containers (full capacity 420 mL, made of PP) having a lid similar to the lid 5 shown in FIGS. A leak test was performed. 300 mL of water was put in each container, and the container was inclined 90 ° as shown in FIG. This state was maintained for 5 minutes, and the presence or absence of liquid leakage from the cut portion was evaluated. As a result, no liquid leakage was observed in any container even after 5 minutes from the start of the test.
（比較例１）
蓋に設けられた切り込み部の端部が尖形でない従来の容器（満杯容量４２０ｍＬ、ＰＰ製）を３つ準備し、実施例１と同様にして液漏れの有無を確認した。３つの容器とも試験開始から３０〜９０秒後に液漏れが認められ、それぞれの液漏れ量（試験開始から５分後）は、５ｍＬ、１０ｍＬ、及び、３．５ｍＬであった。
(Comparative Example 1)
Three conventional containers (full capacity 420 mL, made of PP) in which the end of the cut portion provided in the lid is not pointed were prepared, and the presence or absence of liquid leakage was confirmed in the same manner as in Example 1. In all three containers, liquid leakage was observed 30 to 90 seconds after the start of the test, and the respective liquid leakage amounts (5 minutes after the start of the test) were 5 mL, 10 mL, and 3.5 mL.
＜切り込み部の幅測定＞
上記実施例１で用いた容器と同様の容器の切り込み部の幅（隙間）をデジタルマイクロスコープ（株式会社ハイロックス製、ＫＨ−７７００）を用いて測定した。図６に蓋の表面の拡大画像及び隙間寸法（単位μｍ）を示す。切り込みの中央から端部にいくに従って次第に細くなっていることが確認できた。
<Incision width measurement>
The width | variety (gap) of the notch | incision part of the container similar to the container used in the said Example 1 was measured using the digital microscope (The Hilox Co., Ltd. make, KH-7700). FIG. 6 shows an enlarged image of the lid surface and a gap size (unit: μm). It was confirmed that the thickness gradually decreased from the center of the cut to the end.
＜ストロー突刺し試験＞
切り込み部へのストローの突き刺し易さを評価するため、圧縮試験機（東洋精機製ＳＴＲＯＧＲＡＰＨＶ１−Ｃ）を用いてストローを突き刺すのに要する力を定量化した。上方から下方にストローを降下させるスピードは１００ｍｍ／分とした。評価対象は、（ａ）上記実施例１で用いた３つの容器、及び、（ｂ）特開２０１０−１３７９０２号公報に記載の蓋（切り込みの途中に非切り込み部を有する蓋）を備えた３つの容器とした。図７にそれぞれの切り込み部の寸法（左側）及び測定結果（右側、単位Ｎ）を示した。ストローの突刺しに要した力の最大値の平均は、（ａ）の容器が４．５Ｎであったのに対し、（ｂ）の容器は９．２Ｎであった。
<Straw piercing test>
In order to evaluate the ease of piercing the straw into the cut portion, the force required to pierce the straw was quantified using a compression tester (STROGRAPHV1-C manufactured by Toyo Seiki). The speed at which the straw was lowered from the top to the bottom was 100 mm / min. The evaluation targets were (a) three containers used in Example 1 above, and (b) a lid described in JP 2010-137902 A (a lid having a non-cut portion in the middle of cutting). Two containers were used. FIG. 7 shows the dimensions (left side) and measurement results (right side, unit N) of the respective notches. The average of the maximum force required to pierce the straw was 4.5N for the container (a), and 9.2N for the container (b).
５…蓋、５ａ…貫通していない部分、６…隆起した部分、７…切り込み部、１０…容器、１１…容器本体、１１ａ…開口部、Ａ…切り込み部の中心、Ｂ…切り込み部の端部、Ｆ１…蓋の外側面、Ｆ２…蓋の内側面。 DESCRIPTION OF SYMBOLS 5 ... Lid, 5a ... Non-penetrating part, 6 ... Raised part, 7 ... Cut part, 10 ... Container, 11 ... Container main body, 11a ... Opening part, A ... Center of cut part, B ... End of cut part Part, F1 ... outer side surface of the lid, F2 ... inner side surface of the lid.
Claims (4)
当該蓋の一方面上において、前記切り込み部はその中心から端部に向けて幅が狭くなっていることを特徴とする蓋。 A container lid that is detachable with respect to the opening of the container body and has a cross-shaped cut portion for inserting a straw,
The lid is characterized in that, on one surface of the lid, the cut portion is narrowed from the center toward the end.
前記切り込み部の端部が尖形であることを特徴とする蓋。 A container lid that is detachable with respect to the opening of the container body and has a notch for piercing a straw,
A lid characterized in that an end of the cut portion is pointed.
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| JP2011012205A JP5788184B2 (en) | 2011-01-24 | 2011-01-24 | Container lid |
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| JP2011012205A JP5788184B2 (en) | 2011-01-24 | 2011-01-24 | Container lid |
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| JP5788184B2 JP5788184B2 (en) | 2015-09-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021159508A (en) * | 2020-04-01 | 2021-10-11 | 裕子 杉野 | Intellectual training toy |
| JP7450290B1 (en) | 2022-06-22 | 2024-03-15 | 株式会社Ky7 | Lid, container with lid, combination of lid and container |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63169457U (en) * | 1987-04-22 | 1988-11-04 | ||
| JP2009220852A (en) * | 2008-03-14 | 2009-10-01 | Akamatsu Kasei Kogyo Kk | Cap |
| JP2010116168A (en) * | 2008-11-11 | 2010-05-27 | Nihon Tetra Pak Kk | Structure of straw opening part of liquid food container |
| JP2010137902A (en) * | 2008-12-15 | 2010-06-24 | Nippon Dekishii:Kk | Lid for beverage vessel |
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- 2011-01-24 JP JP2011012205A patent/JP5788184B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63169457U (en) * | 1987-04-22 | 1988-11-04 | ||
| JP2009220852A (en) * | 2008-03-14 | 2009-10-01 | Akamatsu Kasei Kogyo Kk | Cap |
| JP2010116168A (en) * | 2008-11-11 | 2010-05-27 | Nihon Tetra Pak Kk | Structure of straw opening part of liquid food container |
| JP2010137902A (en) * | 2008-12-15 | 2010-06-24 | Nippon Dekishii:Kk | Lid for beverage vessel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021159508A (en) * | 2020-04-01 | 2021-10-11 | 裕子 杉野 | Intellectual training toy |
| JP7425475B2 (en) | 2020-04-01 | 2024-01-31 | 裕子 杉野 | Educational toys |
| JP7450290B1 (en) | 2022-06-22 | 2024-03-15 | 株式会社Ky7 | Lid, container with lid, combination of lid and container |
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| JP5788184B2 (en) | 2015-09-30 |
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