JP2019034791A

JP2019034791A - Container for packaging

Info

Publication number: JP2019034791A
Application number: JP2018149145A
Authority: JP
Inventors: 和馬込山; Kazuma Komiyama
Original assignee: CP Chemicals Inc
Current assignee: CP Chemicals Inc
Priority date: 2017-08-17
Filing date: 2018-08-08
Publication date: 2019-03-07
Anticipated expiration: 2038-08-08
Also published as: JP7272616B2

Abstract

To provide a container for packaging that can position a lid body stably at an appropriate position for fitting to a container body before closing a lid.SOLUTION: A container for packaging comprises, as a fitting structure for fitting a lid body to a container body externally, a projection part for fitting which projects outward in a plane direction on a container body side, and a recessed part for fitting which is hollowed inward in the plane direction on a lid body side. In the external fitting, the whole recessed part for fitting is fitted below the projection part for fitting from the outside, and an upper inner surface of the recessed part for fitting is locked to a lower outer surface of the projection part for fitting to enter a lid closing state. Before the external fitting, a lower inner surface of the recessed part for fitting is put on an upper outer surface of the projection part for fitting to enter a half-open state in which the lid body floats over the container body more than in the external fitting. The lower inner surface of the recessed part for fitting and the upper outer surface of the projection part for fitting are both sectioned in arcuate shapes having r-values in which the shapes at least partially conform to each other, and the lid body is restricted from moving in the plane direction relatively to the container body in the half-open state.SELECTED DRAWING: Figure 3

Description

この発明は、容器本体に蓋体を外嵌合によって閉蓋する包装用容器に係り、その閉蓋前に、蓋体を容器本体に対して嵌合に適した位置に位置決めする構成に関する。また同時に、当該構成を利用して、蓋体同士、容器本体同士のスタック性を安定させる構成にも言及する。 The present invention relates to a packaging container that closes a lid body by external fitting to the container body, and relates to a configuration in which the lid body is positioned at a position suitable for fitting to the container body before the lid is closed. At the same time, a configuration that stabilizes the stacking property between the lids and between the container main bodies by using the configuration will also be referred to.

容器本体に蓋体を外嵌合によって閉蓋する包装用容器として、特許文献１に記載された発明が公知である。図１７は同文献の図４に示された包装用容器、図１８は同文献の図２に示された包装用容器であり、各図において、容器本体３０は四角形状の上方開口部３１を有しており、該上方開口部３１の上縁には水平フランジ３２が形成されている。 The invention described in Patent Document 1 is known as a packaging container in which a lid is closed by external fitting to a container body. 17 is the packaging container shown in FIG. 4 of the same document, and FIG. 18 is the packaging container shown in FIG. 2 of the same document. In each figure, the container body 30 has a rectangular upper opening 31. A horizontal flange 32 is formed on the upper edge of the upper opening 31.

一方、蓋体（成形蓋１０）は、天板１１と、該天板１１の周囲に形成された外側下方に拡開する第１の傾斜面１２と、該第１の傾斜面１２の下端部から外側水平方向に広がる第１の水平フランジ１３と、該第１の水平フランジ１３の周囲に形成された外側下方に拡開する第２の傾斜面１４と、該第２の傾斜面１４の下端部から外側水平方向に広がる第２の水平フランジ１５と、該第２の水平フランジ１５の外側端に形成されたスカート部１６とを備えている。 On the other hand, the lid body (molded lid 10) includes a top plate 11, a first inclined surface 12 that is formed around the top plate 11 and expands outwardly downward, and a lower end portion of the first inclined surface 12. A first horizontal flange 13 that spreads outward in the horizontal direction, a second inclined surface 14 that is formed around the first horizontal flange 13 and that extends outward and downward, and a lower end of the second inclined surface 14. A second horizontal flange 15 extending from the portion in the outer horizontal direction, and a skirt portion 16 formed at the outer end of the second horizontal flange 15.

前記スカート部１６は、前記第２の水平フランジ１５の外側端から垂下する垂直壁１７と、該垂直壁１７の下端から斜め下方に拡開する傾斜壁１８と、該傾斜壁１８の下端から水平方向に広がる水平縁部１９とを有し、前記垂直壁１７には内側へ凸となった膨出部２０が形成されている。 The skirt portion 16 includes a vertical wall 17 depending from the outer end of the second horizontal flange 15, an inclined wall 18 that extends obliquely downward from the lower end of the vertical wall 17, and a horizontal wall extending from the lower end of the inclined wall 18. The vertical wall 17 is formed with a bulging portion 20 that protrudes inward.

なお、図１７と図１８のものでは膨出部２０の形状が異なり、図１７のものでは、スカート部１６を構成する傾斜壁１８と膨出部２０の下面部２２である傾斜部とが、いずれも平坦な斜面に形成されている一方、図１８のものでは、前記傾斜壁１８は断面形状が上に凸の弧状をなし、前記膨出部の下面部２２である傾斜部も断面形状が上に凸の弧状をなして、前記傾斜壁１８と前記膨出部の下面部２２である傾斜部とは、全体として断面形状が上に凸の弧状をなすように形成されている。 17 and FIG. 18, the shape of the bulging portion 20 is different. In FIG. 17, the inclined wall 18 constituting the skirt portion 16 and the inclined portion which is the lower surface portion 22 of the bulging portion 20 are On the other hand, in the case of FIG. 18, the inclined wall 18 has an arc shape with a convex upward cross section, and the inclined portion which is the lower surface portion 22 of the bulging portion also has a cross sectional shape. The inclined wall 18 and the inclined portion which is the lower surface portion 22 of the bulging portion are formed so as to form an arc shape having a convex upward shape as a whole.

このように図１７・１８に示した包装用容器はいずれも、容器本体３０に成形蓋１０をするときは、各図に実線で示すように、容器本体３０の前記水平フランジ３２の上に、成形蓋１０に形成した前記膨出部２０の下面部２２である斜面部が乗った姿勢とし、その状態で、成形蓋１０の前記角部近傍における第１の水平フランジ１３を容器本体３０に向けて押し下げる。これにより、容器本体３０の水平フランジ３２と成形蓋１０のスカート部１６および膨出部２０とが互いに変形し、容器本体３０の水平フランジ３２は前記成形蓋１０の膨出部２０を乗り越え、各図に仮想線で示すように、容器本体３０の水平フランジ３２の上面が、成形蓋１０の前記第２の水平フランジ１５の裏面に衝接した外嵌合の状態となり、蓋締めは完了するとされている。 As shown in FIGS. 17 and 18, when the molding lid 10 is placed on the container body 30, the packaging container shown in FIGS. The inclined surface which is the lower surface portion 22 of the bulging portion 20 formed on the molding lid 10 is in a posture in which the inclined surface portion rides, and in this state, the first horizontal flange 13 in the vicinity of the corner portion of the molding lid 10 is directed toward the container body 30. Press down. As a result, the horizontal flange 32 of the container body 30 and the skirt portion 16 and the bulging portion 20 of the molding lid 10 are deformed, and the horizontal flange 32 of the container body 30 gets over the bulging portion 20 of the molding lid 10. As indicated by the phantom line in the figure, the upper surface of the horizontal flange 32 of the container body 30 is in an externally fitted state in contact with the back surface of the second horizontal flange 15 of the molding lid 10, and the lid tightening is completed. ing.

特開２０１２−６６８３２号公報JP 2012-66832 A

この種包装用容器における包装作業は、まず、内容物を収納した容器本体に対して蓋体を被せ、次に蓋体を下方に押し込んで外嵌合を行うが、外嵌合前あるいは外嵌合時に蓋体の位置が容器本体上で安定しなければ、スムーズに外嵌合を行うことができない。 The packaging operation in this type of packaging container is performed by first covering the container body containing the contents with a lid, and then pushing the lid downward to perform external fitting. If the position of the lid is not stable on the container body at the time of joining, the outer fitting cannot be performed smoothly.

この点について、特許文献１の包装用容器では、外嵌合前に、成形蓋１０は、上述したように、膨出部２０の下面部２２が容器本体３０の水平フランジ３２上に乗った姿勢をとっているが、下面部２２と水平フランジ３２とは互いに形状が異なり、図１７のものは、下面部２２が平坦な斜面であるため、水平フランジ３２に対して滑りやすく、成形蓋３０が四方八方にずれるなどして安定せず、スムーズに外嵌合を行うことができない。したがって、外嵌合時には一個ずつ成形蓋１０の位置を調整する手間が生じる。 With regard to this point, in the packaging container of Patent Document 1, before the outer fitting, the molded lid 10 has a posture in which the lower surface portion 22 of the bulging portion 20 rides on the horizontal flange 32 of the container body 30 as described above. However, the shape of the lower surface portion 22 and the horizontal flange 32 is different from each other. In the case of FIG. It is not stable because it shifts in all directions, and it is not possible to fit smoothly outside. Therefore, it takes time to adjust the position of the molding lid 10 one by one at the time of external fitting.

また、図１８のものは、下面部２２が弧状であるが、容器本体３０側の水平フランジ３２（の先端）に対して点接触の状態となり、滑りやすいことは、当該下面部２２を平坦な斜面とした図１７のものと同様であり、やはり安定した位置決めをもたらすものでない。 In FIG. 18, the lower surface portion 22 has an arcuate shape, but is in a point contact state with the horizontal flange 32 (the front end) on the container body 30 side and is slippery. It is the same as that of FIG. 17 made into the slope, and also does not bring about stable positioning.

特に、成形蓋１０を強固な嵌合とするために膨出部２０の内方への凸長（外側から見たときの凹深さ）を大きくすると、その下面部２２の斜辺長または弧長も長くなり、その分、位置ずれも大きくなる。 In particular, when the convex length (indentation depth when viewed from the outside) of the bulging portion 20 is increased in order to make the molding lid 10 a firm fit, the hypotenuse length or arc length of the lower surface portion 22 is increased. And the positional deviation increases accordingly.

本発明は上述した課題を解決するためになされたもので、その目的とするところは、その閉蓋前に、蓋体を容器本体に対して嵌合に適した位置に安定して位置決めすることができる包装用容器を提供することである。 The present invention has been made to solve the above-described problems, and the object of the present invention is to stably position the lid to a position suitable for fitting with the container body before the lid is closed. It is to provide a packaging container that can be used.

上述した目的を達成するために本発明では、蓋体を容器本体に外嵌合する嵌合構造として、前記容器本体側において平面方向外向きに突出する嵌合用凸部と、前記蓋体側において平面方向内向きに窪む嵌合用凹部とを備え、外嵌合時は、前記嵌合用凹部の全体が外側から前記嵌合用凸部の下方に嵌り込んで、前記嵌合用凹部の上部内面が前記嵌合用凸部の下部外面と係止して閉蓋状態をなす一方、外嵌合前は、前記嵌合用凹部の下部内面が前記嵌合用凸部の上部外面に乗って、前記外嵌合時よりも前記蓋体が前記容器本体から浮いた半開きの状態をなす包装用容器であることを前提とする。 In order to achieve the above-described object, in the present invention, as a fitting structure for fitting the lid body to the container body, a fitting convex portion projecting outward in the planar direction on the container body side, and a flat surface on the lid body side are provided. A fitting recess that is recessed inward in the direction, and when fitting externally, the whole of the fitting recess fits into the lower part of the fitting projection from the outside, and the upper inner surface of the fitting recess is the fitting While engaging with the lower outer surface of the fitting convex portion to form a closed state, before the outer fitting, the lower inner surface of the fitting concave portion rides on the upper outer surface of the fitting convex portion, and from the time of the outer fitting. Also, it is assumed that the lid body is a packaging container that is in a half-open state floating from the container body.

そして、前記嵌合用凹部の前記下部内面、及び前記嵌合用凸部の前記上部外面はともに、外方に向かって下り、少なくとも一部において互いの形状が合致するアール値を有した断面弧状に形成され、前記半開きの状態で、前記蓋体の前記容器本体に対する平面方向の相対的な移動を規制するという手段を採用した。 The lower inner surface of the fitting concave portion and the upper outer surface of the fitting convex portion both descend toward the outside, and are formed in a cross-sectional arc shape having a rounded value that matches the shape of each other at least partially. In the half-opened state, means for restricting relative movement of the lid body in the plane direction with respect to the container body is adopted.

上記手段によれば、蓋体の嵌合用凹部の下部内面と、容器本体の嵌合用凸部の上部外面とを、同一か略同一のアール形状としたので、外嵌合前の半開き状態において、蓋体を容器本体に対して嵌合に適した位置に確実に位置決めすることができる。 According to the above means, since the lower inner surface of the fitting concave portion of the lid and the upper outer surface of the fitting convex portion of the container body are the same or substantially the same round shape, in the half-open state before the outer fitting, The lid can be reliably positioned at a position suitable for fitting with the container body.

当該手段において、容器本体の嵌合用凸部の上部外面については、その全部を上述した断面弧状としてもよいが、一部を蓋体の嵌合用凹部の下部内面と互いに形状が合致するアール値を有した断面弧状として、その上側には断面直線状の本体側傾斜面を連続して形成してなることが好ましい。 In this means, the upper outer surface of the fitting convex portion of the container body may be entirely arc-shaped as described above, but a part of the round value is matched with the lower inner surface of the fitting concave portion of the lid. As the cross-sectional arc shape, it is preferable that a main body-side inclined surface having a linear cross-section is continuously formed on the upper side.

これと同時に、蓋体についても、その嵌合用凹部の下部内面は、その全部を上述した断面弧状としてもよいが、一部を容器本体の嵌合用凸部の上部外面と互いに形状が合致するアール値を有した断面弧状として、その上側には前記容器本体の嵌合用凸部の上部外面における本体側傾斜面に対応した断面直線状の蓋側傾斜面を連続して形成してなることが好ましい。 At the same time, the lower inner surface of the fitting recess may be entirely arc-shaped as described above, but a part of the lid body has a shape that matches the upper outer surface of the fitting protrusion of the container body. As the cross-sectional arc shape having a value, it is preferable that a lid-side inclined surface having a linear cross-section corresponding to the main body-side inclined surface on the upper outer surface of the fitting convex portion of the container main body is continuously formed on the upper side thereof. .

このように本体側傾斜面を設けることで、蓋体の嵌合用凹部の下部内面や蓋側傾斜面との接触機会や面積が増し、より安定した位置決めを行うことができるからである。また、位置決め後の閉蓋操作時に、蓋体の嵌合用凹部が本体側傾斜面を滑るようにスムーズに嵌合するため、容器本体の嵌合用凸部の潰れを防止するという作用もある。そして、嵌合用凸部の潰れが防止できることによって、容器本体に使用する樹脂シートの厚みを極限まで小さくすることができ、コスト削減にも寄与する。これは蓋体についても同様であり、蓋体をより小さな押圧力で嵌合させることができるため、閉蓋操作時に蓋体の潰れもなく、もって、蓋体のシートの厚みも小さくすることができる。 By providing the main body side inclined surface in this manner, the contact opportunity and area with the lower inner surface of the fitting concave portion of the lid and the lid side inclined surface are increased, and more stable positioning can be performed. Further, during the closing operation after positioning, the fitting concave portion of the lid is smoothly fitted so as to slide on the inclined surface on the main body side, so that the fitting convex portion of the container main body is prevented from being crushed. And since the collapse of the fitting convex part can be prevented, the thickness of the resin sheet used for the container body can be reduced to the limit, which contributes to cost reduction. The same applies to the lid, and the lid can be fitted with a smaller pressing force, so that the lid is not crushed during the closing operation, and the thickness of the lid sheet can be reduced. it can.

また、蓋体同士を積み重ねた際のスタック性を安定させる手段として、蓋体は、嵌合用凹部の上側に、当該蓋体同士を積み重ねるスタック用肩部を有し、該スタック用肩部は、上位の蓋体の前記嵌合用凹部の下部内面が乗る外面部分が、前記嵌合用凹部の前記下部内面と少なくとも一部において互いの形状が合致するアール値を有した断面弧状とした。この手段においても、積み重ねの際に、乗る部分（嵌合用凹部の下部内面）と乗られる部分（スタック用肩部）の形状が同一または略同一のアール形状であるので、スタック性を安定させることができる。 Further, as a means for stabilizing the stackability when the lids are stacked, the lid has a stack shoulder for stacking the lids on the upper side of the fitting recess, and the stack shoulder is The outer surface portion on which the lower inner surface of the fitting recess of the upper lid body has an arcuate cross section having a rounded value that matches the shape of the lower inner surface of the fitting recess. Also in this means, when stacking, the shape of the riding part (lower inner surface of the recess for fitting) and the riding part (shoulder for stacking) are the same or substantially the same round shape, so that the stacking property is stabilized. Can do.

さらに、容器本体同士のスタック安定性については、容器本体は、嵌合用凸部の下側に、当該容器本体同士を積み重ねるスタック用裾部を有し、該スタック用裾部は、下位の容器本体の前記嵌合用凸部の上部外面に乗る内面部分が、前記嵌合用凸部の上部外面と少なくとも一部において互いの形状が合致するアール値を有した断面弧状とした。 Further, regarding the stack stability between the container main bodies, the container main body has a stack hem for stacking the container main bodies on the lower side of the fitting convex portion, and the stack hem is a lower container main body. The inner surface portion of the fitting convex portion that rides on the upper outer surface has a cross-sectional arc shape having a rounded value that matches the shape of the upper outer surface of the fitting convex portion at least partially.

この場合、容器本体のスタック用裾部の内面部分は、その全部を上述した断面弧状としてもよいが、一部を下位の容器本体の嵌合用凸部の上部外面と互いの形状が合致するアール値を有した断面弧状として、その上側には前記容器本体の嵌合用凸部の上部外面における本体側傾斜面に対応した断面直線状の第二の本体側傾斜面を連続して形成することで、上位の容器本体における第二の本体側傾斜面と下位の容器本体における本体側傾斜面との当接によって、より安定したスタック性が得られる。 In this case, the entire inner surface portion of the stack hem of the container body may have the cross-sectional arc shape described above, but a part of the inner surface portion matches the upper outer surface of the fitting convex portion of the lower container body. As a cross-sectional arc shape having a value, by continuously forming a second main body side inclined surface having a linear cross section corresponding to the main body side inclined surface on the upper outer surface of the fitting convex portion of the container main body on the upper side thereof A more stable stacking property is obtained by the contact between the second main body side inclined surface of the upper container body and the main body side inclined surface of the lower container body.

なお、上記蓋体と上記容器本体との組み合わせにおいて、さらに、前記蓋体は、スタック用肩部と嵌合用凹部の上部間を、容器本体への外嵌合時に嵌合用凸部を収容する平面方向外向きの膨出部とすることで、確実な外嵌合が実現する。 In the combination of the lid body and the container body, the lid body is a plane that accommodates the fitting convex portion between the stack shoulder and the upper portion of the fitting concave portion when fitted to the container body. By making the bulging portion outward in the direction, reliable outer fitting is realized.

さらに、この膨出部を有する蓋体において、蓋体は、嵌合用凹部の最も内向きに突き出る先端がスタック用肩部の基端よりも内向きに突き出ていることで、嵌合用凹部の嵌合深さが大きくなり、強嵌合によって蓋体の不用意な開蓋を回避することができる。 Further, in the lid body having this bulging portion, the lid body has a distal end that protrudes most inwardly in the fitting concave portion so as to protrude inward from the base end of the stack shoulder portion. The combined depth is increased, and careless opening of the lid can be avoided by strong fitting.

一方、蓋体の嵌合用凹部の下部の外縁は、外嵌合時において、その外縁が容器本体のスタック用裾部の外縁の上方に位置することが好ましい。閉蓋した容器全体において、容器本体のスタック用裾部の外縁が最外縁となって、蓋体の嵌合用凹部の下部外縁に誤って手指や衣服等を引っ掛かけ、不用意な開蓋を防止することができるからである。 On the other hand, it is preferable that the outer edge of the lower part of the fitting recess of the lid is positioned above the outer edge of the stack hem of the container body during the outer fitting. In the closed container as a whole, the outer edge of the stack hem of the container body becomes the outermost edge, accidentally catching fingers or clothes etc. on the lower outer edge of the fitting recess of the lid, and unintentionally opening the lid This is because it can be prevented.

その際、蓋体の嵌合用凹部の下部の外縁と、容器本体のスタック用裾部の外縁はともに、水平なフランジに形成される一方、外嵌合時において、蓋体側の前記フランジが容器本体の前記フランジよりも僅かに外方に突出するという構成では、不用意な開蓋を防止しつつ、蓋体側のフランジに指をかけて意図的な開蓋は容易となる。 At that time, the outer edge of the lower part of the fitting recess of the lid and the outer edge of the stack hem of the container body are both formed in a horizontal flange, while the flange on the lid side is the container body during the outer fitting. In the configuration of projecting slightly outward from the flange, it is easy to open the cover intentionally by putting a finger on the flange on the lid side while preventing inadvertent opening.

本発明の包装用容器は、蓋体を容器本体に対して嵌合に適した位置に安定して位置決めすることができるため、閉蓋作業をスムーズに行うことができる。 Since the packaging container of the present invention can stably position the lid body at a position suitable for fitting with the container body, the lid closing operation can be performed smoothly.

また、蓋体同士、容器本体同士を積み重ねた際も安定したスタック性が得られるため、搬送やバックヤードでの内容物の詰め込み作業を荷崩れなく行うことができる。 In addition, since stable stackability can be obtained even when the lids and the container main bodies are stacked, it is possible to carry out the contents and stuffing work in the backyard without collapsing.

本発明の一実施形態に係る包装用容器の要部断面分解図The principal part cross-section exploded view of the packaging container which concerns on one Embodiment of this invention 同、閉蓋状態を示す要部断面図Same part sectional view showing the closed state 同、閉蓋前の半開き状態を示す要部拡大断面図The principal part expanded sectional view which shows the half open state before a lid same as the above 同、蓋体同士を積み重ねたときの要部拡大断面図Same as above, enlarged cross-sectional view of the main part when the lids are stacked together 同、容器本体同士を積み重ねたときの要部拡大断面図Same as above, enlarged cross-sectional view of the main part when the container bodies are stacked 本発明の第二実施形態に係る包装用容器の要部断面分解図Cross-sectional exploded view of essential parts of a packaging container according to a second embodiment of the present invention 同、閉蓋前の半開き状態を示す要部拡大断面図The principal part expanded sectional view which shows the half open state before a lid same as the above 同、容器本体同士を積み重ねたときの要部拡大断面図Same as above, enlarged cross-sectional view of the main part when the container bodies are stacked 同、蓋体同士を積み重ねたときの要部拡大断面図Same as above, enlarged cross-sectional view of the main part when the lids are stacked together 本発明の第三実施形態に係る包装用容器の要部断面分解図Cross-sectional exploded view of essential parts of a packaging container according to a third embodiment of the present invention 同、閉蓋前の半開き状態を示す要部拡大断面図The principal part expanded sectional view which shows the half open state before a lid same as the above 同、蓋体同士を積み重ねたときの要部拡大断面図Same as above, enlarged cross-sectional view of the main part when the lids are stacked together 同、容器本体同士を積み重ねたときの要部拡大断面図Same as above, enlarged cross-sectional view of the main part when the container bodies are stacked 本発明に係る包装用容器の外形の一例（円形）An example of the outer shape of the packaging container according to the present invention (circular) 本発明に係る包装用容器の外形の他の例（矩形）Another example of the outer shape of the packaging container according to the present invention (rectangular shape) 本発明に係る包装用容器の外形の更なる他の例（オーバル）Still another example of the outer shape of the packaging container according to the present invention (oval) 従来の包装用容器（特許文献１の図４に相当）Conventional packaging container (corresponding to FIG. 4 of Patent Document 1) 同（特許文献１の図２に相当）Same (corresponding to FIG. 2 of Patent Document 1)

以下、本発明の好ましい実施の形態を添付した図面に従って説明する。図１は、本発明の一実施形態に係る包装用容器について、蓋体１と容器本体２を分離した状態を示した要部断面図である。これら蓋体１と容器本体２は、成形金型を用いた真空成形、圧空成形、真空圧空成形など、公知の樹脂シート成形法によって製造され、次のような構成を備える。 Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a main part showing a state in which a lid 1 and a container body 2 are separated from each other for a packaging container according to an embodiment of the present invention. The lid body 1 and the container body 2 are manufactured by a known resin sheet molding method such as vacuum molding using a molding die, pressure molding, or vacuum / pressure molding, and has the following configuration.

蓋体１は、天板１ａの周囲に傾斜壁１ｂを有し、該傾斜壁１ｂの周囲には水平なヘム部１ｃを介してスカート部１ｄを垂設している。スカート部１ｄは、ヘム部１ｃの下縁に連続してやや拡開気味に形成したフレア部１ｅと、該フレア部１ｅの下縁からさらに平面方向外向きに突出して形成した膨出部１ｆと、該膨出部１ｆの下縁に連続して形成した平面方向内向きに窪む嵌合用凹部１ｇとからなり、さらに嵌合用凹部１ｇには微小な水平フランジ１ｈを形成し、該水平フランジ１ｈの内側において下面１ｉは開口している。 The lid body 1 has an inclined wall 1b around the top plate 1a, and a skirt portion 1d is suspended around the inclined wall 1b via a horizontal hem portion 1c. The skirt portion 1d includes a flared portion 1e formed in a slightly expanded manner continuously from the lower edge of the hem portion 1c, and a bulging portion 1f formed to protrude further outward in the planar direction from the lower edge of the flare portion 1e, It is composed of a fitting recess 1g that is formed in the plane direction inward and is formed continuously on the lower edge of the bulging portion 1f. Further, a minute horizontal flange 1h is formed in the fitting recess 1g, and the horizontal flange 1h On the inner side, the lower surface 1i is open.

容器本体２は、底２ａとその周囲の立ち上がり壁２ｂとで上面開口の収容部２ｃを画定し、立ち上がり壁２ｂの周囲には、蓋体１のヘム部１ｃ、フレア部１ｅ、膨出部１ｆにそれぞれ対応するヘム部２ｄ、フレア部２ｅ、嵌合用凸部２ｆを形成している。また、この実施形態では、後述する容器本体２同士を積み重ねた際のスタック性を安定化させるために、嵌合用凸部２ｆの下側に垂壁部２ｇを介してスタック用裾部２ｈを形成している。さらに、このスタック用裾部２ｈには微小の水平フランジ２ｉを形成している。 The container body 2 defines an accommodating portion 2c having an upper surface opening by a bottom 2a and a surrounding rising wall 2b. Around the rising wall 2b, a hem portion 1c, a flare portion 1e, and a bulging portion 1f of the lid body 1 are formed. A hem portion 2d, a flare portion 2e, and a fitting convex portion 2f are formed. Further, in this embodiment, in order to stabilize the stackability when the container main bodies 2 described later are stacked, a stack hem 2h is formed below the fitting convex portion 2f via the vertical wall portion 2g. doing. Further, a minute horizontal flange 2i is formed on the stack skirt 2h.

上記構成の包装用容器は、収容部２ｃに内容物を収容した容器本体２に蓋体１を被せ、この蓋体１のヘム部１ｃを下方に押し込む等することで、その内向きの嵌合用凹部１ｇの全体が容器本体２の嵌合用凸部２ｆの下方に外側から嵌り込んで、図２に示す外嵌合の状態で閉蓋をなすところ、本発明の特徴である、その外嵌合前に蓋体１を容器本体２に対して位置決めする構成について、さらに各部の詳細な形状等について説明する。 The packaging container having the above-described configuration is for inward fitting by covering the container body 2 containing the contents in the container 2c with the lid 1 and pushing the hem 1c of the lid 1 downward. The entire concave portion 1g is fitted from the outside below the fitting convex portion 2f of the container main body 2 to form a lid in the outer fitting state shown in FIG. 2, and this outer fitting is a feature of the present invention. The configuration for positioning the lid 1 with respect to the container main body 2 will be described in detail with respect to the detailed shape of each part.

上記構成の包装用容器は、その外嵌合前は、図３に示すように、蓋体１の嵌合用凹部１ｇの下部内面３が、容器本体２の嵌合用凸部２ｆの上部外面４に乗り、外嵌合時よりも蓋体１が容器本体２から浮いた半開きの状態をなすものであって、その際の位置決めについて、蓋体１側の乗る部分である上記下部内面３と、容器本体２側の乗られる部分である上記上部外面４はともに、外方に向かって下り、少なくとも一部において互いの形状が合致するアール値（半径）を有した断面弧状に形成している。 Before the outer fitting of the packaging container having the above-described configuration, the lower inner surface 3 of the fitting concave portion 1g of the lid body 1 is connected to the upper outer surface 4 of the fitting convex portion 2f of the container body 2 as shown in FIG. The lid body 1 is in a half-open state in which the lid body 1 is lifted from the container body 2 more than when being fitted and externally fitted, and the lower inner surface 3 which is a portion on the lid body 1 side, The upper outer surface 4 that is a portion on the side of the main body 2 is formed in an arc shape having a radius value (radius) at which at least a part of the upper outer surface 4 descends outward and the shape of each other matches.

このように乗る側（嵌合用凹部１ｇの下部内面３）と乗られる側（嵌合用凸部２ｆの上部外面４）が、断面弧状として形状が合致することで、両者間に滑りが生じず、上述した半開きの状態で、蓋体１の容器本体２に対する平面方向の相対的な移動を規制することができる。よって、いったん位置決めを行えば、その状態を安定して維持し、その後、スムーズに嵌合（閉蓋）作業を実行することができる。 The side (the upper inner surface 4 of the fitting convex portion 2f) and the side (the upper inner surface 4 of the fitting convex portion 2f) to be ridden in this way match in shape as a cross-sectional arc, so that no slip occurs between them. In the above-described half-open state, the relative movement of the lid 1 in the planar direction with respect to the container body 2 can be restricted. Therefore, once positioning is performed, the state can be stably maintained, and then the fitting (liding) operation can be performed smoothly.

次に、蓋体１を容器本体２に位置決めするさらに、その前段階において、蓋体１同士、容器本体２同士を積み重ねたときのスタック安定性について説明すると、まず、蓋体１については、これを上下に積み重ねた際、図４に示すように、上位の蓋体１の嵌合用凹部１ｇの下部内面３が、下位の蓋体１の膨出部１ｆに乗る。そこで、本発明では、乗られる部分である膨出部１ｆの肩部５（請求の範囲における「スタック用肩部」）の外面部分５ａと、ここに乗る嵌合用凹部１ｇの下部内面３とを、少なくとも一部において互いの形状が合致するアール値を有した断面弧状に形成している。 Next, the positioning of the lid 1 to the container body 2 and the stack stability when the lid bodies 1 and the container bodies 2 are stacked in the previous stage will be described. As shown in FIG. 4, the lower inner surface 3 of the fitting recess 1 g of the upper lid 1 gets on the bulging portion 1 f of the lower lid 1. Therefore, in the present invention, the outer surface portion 5a of the shoulder portion 5 (the “shoulder portion for stacking” in the claims) of the bulging portion 1f that is a portion to be ridden, and the lower inner surface 3 of the fitting recess 1g that rides on the shoulder portion 5 , At least in part, it is formed in a cross-sectional arc shape having a rounded value that matches the shape of each other.

他方、容器本体２については、これを上下に積み重ねた際、図５に示すように、下位の容器本体２の嵌合用凸部２ｆの上部外面４に、上位の容器本体２のスタック用裾部２ｈの内面部分６が乗るため、これら部分４・６を、蓋体１の場合と同様に、少なくとも一部において互いの形状が合致するアール値を有した断面弧状に形成している。 On the other hand, when the container body 2 is stacked up and down, as shown in FIG. 5, the stacking skirt of the upper container body 2 is formed on the upper outer surface 4 of the fitting convex part 2 f of the lower container body 2. Since the inner surface portion 6 of 2h rides, these portions 4 and 6 are formed in a cross-sectional arc shape having a rounded value that matches the shape of each other at least partially, as in the case of the lid body 1.

このような構成によって、蓋体１同士や容器本体２同士を積み重ねたときは、上述した蓋体１を容器本体２に位置決めしたときと同じ作用によって、蓋体１や容器本体２の平面方向の相対的な移動が規制され、安定したスタック性が得られる。 With such a configuration, when the lids 1 and the container main bodies 2 are stacked, the same action as when the above-described lid 1 is positioned on the container main body 2, the planar direction of the lid 1 and the container main body 2 is improved. Relative movement is restricted and stable stacking is obtained.

続いて、閉蓋後の包装用容器の作用効果について説明すると、本実施形態では、蓋体１の外嵌合後、図２に示したように、容器本体２の嵌合用凸部２ｆが蓋体１の膨出部１ｆの内側に完全に収容されるため、閉蓋状態を確実に安定して維持することができる。 Subsequently, the operation and effect of the packaging container after the lid is closed. In this embodiment, after the lid 1 is externally fitted, the fitting convex portion 2f of the container body 2 is the lid as shown in FIG. Since it is completely accommodated inside the bulging portion 1f of the body 1, the closed state can be reliably and stably maintained.

また、この実施形態では、蓋体１における嵌合用凹部１ｇの深さを大きくして、より強固な嵌合を実現している。具体的には、嵌合用凹部１ｇの最も内向きに突き出る先端７を、スタック用肩部５のフレア部１ｅとの接続部である基端部５ｂよりも内向きに突き出るように、嵌合用凹部１ｇの深さを設定している。これはすなわち、膨出部１ｆの内側の収容深さよりも嵌合用凹部１ｇの窪みが大きいことを意味し、容器本体２に対して嵌合用凹部１ｇがより深く嵌合することを意味する。よって、薄肉化の傾向が強い近年の包装用容器について、このように強嵌合とすることで、より不用意な開蓋を防止することができる。 Further, in this embodiment, the depth of the fitting recess 1g in the lid 1 is increased to realize stronger fitting. Specifically, the fitting recess is formed so that the tip 7 protruding most inward of the fitting recess 1g protrudes inward from the base end portion 5b which is a connecting portion with the flare portion 1e of the stack shoulder 5. A depth of 1 g is set. This means that the recess of the fitting recess 1g is larger than the accommodation depth inside the bulging portion 1f, and the fitting recess 1g fits deeper into the container body 2. Therefore, it is possible to prevent more inadvertent opening by setting the strong fitting in this way for a recent packaging container having a strong tendency to be thin.

さらに、本実施形態では、蓋体１の水平フランジ１ｈを容器本体２の水平フランジ２ｉの上方に位置させており、容器本体２の水平フランジ２ｉによる下カバー作用によって、蓋体１の水平フランジ１ｈに下方からの力、即ち開蓋方向の力が直接作用することを防止し、もって、蓋体１の不用意な開蓋を確実に防止している。 Furthermore, in this embodiment, the horizontal flange 1h of the lid body 1 is positioned above the horizontal flange 2i of the container body 2, and the horizontal flange 1h of the lid body 1 is formed by the lower cover action by the horizontal flange 2i of the container body 2. Thus, it is possible to prevent the force from the lower side, that is, the force in the opening direction, from acting directly on the lid 1, thereby preventing the lid 1 from being accidentally opened.

その一方で、意図する開蓋作業は確保されなければならない。そこで、この実施形態では、閉蓋時（外嵌合時）に、蓋体１の水平フランジ１ｈが容器本体２の水平フランジ２ｉよりも、僅かに外方に突出するように、両者フランジ１ｈ・２ｉの突出長さを調整して形成している。よって、消費者が開蓋する際は、蓋体１の水平フランジ１ｈの先端に指をかけて、意図する開蓋を行うことができる。 On the other hand, the intended opening operation must be ensured. Therefore, in this embodiment, when the lid is closed (when fitted externally), both the flanges 1h and the horizontal flange 1h of the lid 1 protrude slightly outward from the horizontal flange 2i of the container body 2. It is formed by adjusting the protruding length of 2i. Therefore, when the consumer opens the lid, the intended lid can be opened by placing a finger on the tip of the horizontal flange 1 h of the lid 1.

図６は、本発明の第二の実施形態に係る包装用容器を示すものであり、蓋体１の嵌合用凹部１ｇと容器本体２の嵌合用凸部２ｆに関して、下部内面３と上部外面４それぞれの形状を変更している。即ち、この第二実施形態では、嵌合用凹部１ｇの下部内面３と嵌合用凸部２ｆの上部内面４それぞれを、上述した断面弧状を有する先端部３ａ・４ａと、その上側に連続する傾斜面３ｂ・４ｂとで構成している。この他、上記実施形態と同一の構成は同一符号をもって説明する。 FIG. 6 shows a packaging container according to the second embodiment of the present invention, and a lower inner surface 3 and an upper outer surface 4 with respect to a fitting concave portion 1g of the lid 1 and a fitting convex portion 2f of the container body 2. Each shape has been changed. That is, in the second embodiment, the lower inner surface 3 of the fitting recess 1g and the upper inner surface 4 of the fitting convex portion 2f are respectively provided with the tip portions 3a and 4a having the above-described arcuate cross section and the inclined surfaces continuous on the upper side. 3b and 4b. In addition, the same configuration as the above embodiment will be described with the same reference numerals.

上記先端部３ａ・４ａが互いの形状が合致するアール値を有した断面弧状であることは上記実施形態と同じであり、この第二実施形態では、蓋側と本体側の双方に、同じか近似する角度を有する断面直線状の傾斜面３ｂ・４ｂを構成一部に含んでいる。 It is the same as the above embodiment that the tip portions 3a and 4a have a rounded arc shape having a shape that matches the shape of each other. In the second embodiment, it is the same on both the lid side and the main body side. Inclined surfaces 3b and 4b having a linear cross section having an approximate angle are included as part of the configuration.

当該構成によれば、その外嵌合前は、図７に示すように、蓋体１の嵌合用凹部１ｇの下部内面３が、容器本体２の嵌合用凸部２ｆの上部外面４に乗り、外嵌合（閉蓋）時よりも蓋体１が容器本体２から浮いた半開きの状態をなすことは上記実施形態と同じであるが、その際の位置決めについては、蓋体１側の乗る部分である上記下部内面３と、容器本体２側の乗られる部分である上記上部外面４はともに、互いの傾斜面３ｂ・４ｂが当接した状態となるため、当該下部内面３と上部外面４の全部を断面弧状とした場合よりも、これら部分の接触機会や面積が増し、より確実に位置決めができると共に、スタック性もより安定させることができる。 According to this configuration, before the outer fitting, as shown in FIG. 7, the lower inner surface 3 of the fitting concave portion 1 g of the lid body 1 rides on the upper outer surface 4 of the fitting convex portion 2 f of the container body 2, Although it is the same as the above embodiment that the lid 1 is in a half-open state in which the lid 1 is lifted from the container main body 2 than when it is externally fitted (closed), the positioning at that time is a portion on the lid 1 side. Since the lower inner surface 3 and the upper outer surface 4 which is the portion on the container body 2 side are in contact with each other, the inclined surfaces 3b and 4b are in contact with each other. Compared with the case where the whole has an arcuate cross section, the contact chance and area of these portions are increased, positioning can be performed more reliably, and the stackability can be further stabilized.

また、閉蓋操作では、蓋体１の傾斜面３ｂが容器本体２の傾斜面４ｂを滑るように移動するため、当該操作に必要な蓋体１の押圧力を小さくすることができ、蓋体１と容器本体２の双方への負担が小さくなるため、それぞれの樹脂シートの厚みを小さくしても、閉蓋操作時に嵌合用凹部１ｇや嵌合用凸部２ｆが潰れることを防止することができる。 Further, in the lid closing operation, the inclined surface 3b of the lid body 1 moves so as to slide on the inclined surface 4b of the container body 2, so that the pressing force of the lid body 1 necessary for the operation can be reduced, and the lid body Since the burden on both the container body 1 and the container body 2 is reduced, it is possible to prevent the fitting recess 1g and the fitting protrusion 2f from being crushed even when the thickness of each resin sheet is reduced. .

一方、図８・９に示すように、蓋体１同士や容器本体２同士を積み重ねた際も、蓋体１を半開きの状態で容器本体２に位置決めしたときと同じ作用によって、安定したスタック性が得られる。 On the other hand, as shown in FIGS. 8 and 9, even when the lids 1 and the container main bodies 2 are stacked, stable stackability is achieved by the same action as when the lid 1 is positioned in the container main body 2 in a half-open state. Is obtained.

特に、この実施形態では、容器本体２については、そのスタック用裾部２ｈの内面部分６は、先端部６ａを嵌合用凸部２ｆの先端部４ａと互いの形状が合致するアール値を有した断面弧状として、その上側に嵌合用凸部２ｆの上部外面４における傾斜面４ｂに対応した断面直線状の第二の傾斜面６ｂを連続して形成しているため、容器本体２同士を積み重ねた際は、図８に示したように、上位の第二傾斜面６ｂが下位の傾斜面４ｂに重畳して、より高いスタック性が得られる。 In particular, in this embodiment, for the container body 2, the inner surface portion 6 of the stacking skirt 2h has a radius value that matches the shape of the tip portion 6a with the tip portion 4a of the fitting convex portion 2f. As the cross-sectional arc shape, the second inclined surface 6b having a straight cross-sectional shape corresponding to the inclined surface 4b on the upper outer surface 4 of the fitting convex portion 2f is continuously formed on the upper side, so that the container main bodies 2 are stacked. In this case, as shown in FIG. 8, the upper second inclined surface 6b is superimposed on the lower inclined surface 4b, so that higher stackability is obtained.

他方、図１０に示す本発明の第三実施形態では、蓋体１は最初の実施形態と同一構成であるが、容器本体２については、その嵌合用凸部２ｆの上部外面４を、第二の実施形態と同一構成である傾斜面４ｂを含むものとしているため、蓋体１同士のスタック性（図１２）は最初の実施形態と同じ作用効果が得られ、蓋体１の容器本体２に対する位置決めから嵌合までの容易性（図１１）、及び容器本体２同士のスタック性（図１３）については、第二実施形態に準ずる作用効果を期待することができる。 On the other hand, in the third embodiment of the present invention shown in FIG. 10, the lid body 1 has the same configuration as that of the first embodiment, but the container body 2 has the upper outer surface 4 of the fitting convex portion 2f, Since the slanted surface 4b having the same configuration as that of the first embodiment is included, the stackability of the lids 1 (FIG. 12) is the same as that of the first embodiment. With respect to the ease from positioning to fitting (FIG. 11) and the stacking property between the container main bodies 2 (FIG. 13), it is possible to expect the same effect as the second embodiment.

なお、本発明は上記実施形態に限定されないことはもちろんであって、ここまで言及していない容器の全体形状については、図１４〜図１６に示すように、平面視円形、矩形等、何れであってもよい。また、特徴的構成においても、嵌合用凹部や嵌合用凸部は蓋体や容器本体の全周に設けてもよいし、一部に一つまたは二つ以上設けてもよい。この点、図１４〜図１６に示したように、各種形状のいずれにおいても、容器本体２において嵌合用凸部２ｆは全周に設ける一方、蓋体１における嵌合用凹部１ｇは複数を間隔を空けて設けることが、位置決めのしやすさ、嵌合のしやすさ、意図した開蓋のしやすさなど、総合的にバランスが最も良いのであるが、逆に、嵌合用凹部１ｇを蓋体１の全周に設け、嵌合用凸部２ｆを間欠的に設けたものでも、同等の作用効果を期待することができる。 Of course, the present invention is not limited to the above-described embodiment, and the overall shape of the container that has not been mentioned so far can be any of a circular shape, a rectangular shape, etc., as shown in FIGS. There may be. Also in the characteristic configuration, the fitting recess and the fitting protrusion may be provided on the entire circumference of the lid or the container body, or one or more may be provided in part. In this respect, as shown in FIGS. 14 to 16, in any of the various shapes, the fitting convex portion 2 f is provided on the entire circumference of the container body 2, while the fitting concave portion 1 g in the lid body 1 has a plurality of intervals. It is best to have a good balance in terms of ease of positioning, ease of fitting, ease of opening the intended lid, etc., but conversely, the recess 1g for fitting is provided with a lid. Even if it is provided on the entire circumference of No. 1 and the fitting convex portions 2f are provided intermittently, the same effect can be expected.

この他のパターンとして、嵌合用凹部１ｇ・嵌合用凸部２ｆの双方ともを全周に設ける形態や、双方とも間欠的に設ける形態も本発明にて採用することが可能である。さらに、蓋体を容器本体に位置決めする構成は必須であるが、それ以外のスタック性、強嵌合性、開蓋容易性に関する構成は副次的なものであって、適宜、省略することも可能である。 As other patterns, a form in which both the fitting concave part 1g and the fitting convex part 2f are provided on the entire circumference, or a form in which both are provided intermittently can be adopted in the present invention. Further, the configuration for positioning the lid on the container body is essential, but other configurations relating to stackability, strong fitting, and ease of opening the lid are secondary and may be omitted as appropriate. Is possible.

さらにまた、寸法に関しては、一例として、次のように設定する。

０．７（０．９）≦ｒ’／ｒ≦３．０（２．５）
０．７（０．８）≦ｒ’／ｒ”≦２．０（１．５）
０．６（０．７）≦ｒ’’’／ｒ≦３．０（２．５）

ただし、ｒは容器本体２における嵌合用凸部２ｆの上部外面４のアール値、ｒ’は蓋体１における嵌合用凹部１ｇの下部内面３のアール値、ｒ”は蓋体１におけるスタック用肩部５の外面部分５ａのアール値、ｒ’’’は容器本体２におけるスタック用裾部２ｈの内面部分６のアール値であって、カッコ内の値は最適な比率である。 Furthermore, the dimensions are set as follows as an example.

0.7 (0.9) ≦ r ′ / r ≦ 3.0 (2.5)
0.7 (0.8) ≦ r ′ / r ″ ≦ 2.0 (1.5)
0.6 (0.7) ≦ r ″ ′ / r ≦ 3.0 (2.5)

Here, r is the radius value of the upper outer surface 4 of the fitting convex portion 2 f in the container body 2, r ′ is the radius value of the lower inner surface 3 of the fitting concave portion 1 g in the lid body 1, and r ″ is the shoulder for stacking in the lid body 1. The radius value r ′ ″ of the outer surface portion 5 a of the portion 5 is the radius value of the inner surface portion 6 of the stack skirt 2 h in the container body 2, and the values in parentheses are optimum ratios.

なお、上記のように各比率に上限値を設けたのは、この値を超えると、位置決め又はスタック時に乗る側が直線に近づき安定した位置決め又はスタック性が得られないからであり、また下限値については、乗る側の曲率が乗られる側よりも大きくなり、相対移動を規制することが困難となるからである。 In addition, the reason why the upper limit value is set for each ratio as described above is that if this value is exceeded, the side on which positioning or stacking gets close to a straight line and stable positioning or stacking properties cannot be obtained. This is because the curvature of the rider is larger than that of the rider, and it is difficult to regulate the relative movement.

１蓋体
１ａ天板
１ｂ傾斜壁
１ｃヘム部
１ｄスカート部
１ｅフレア部
１ｆ膨出部
１ｇ嵌合用凹部
１ｈ水平フランジ
１ｉ下面
２容器本体
２ａ底
２ｂ立ち上がり壁
２ｃ収容部
２ｄヘム部
２ｅフレア部
２ｆ嵌合用凸部
２ｇ垂壁部
２ｈスタック用裾部
２ｉ水平フランジ
３嵌合用凹部の下部内面
３ａ断面弧状の先端部
３ｂ断面直線状の傾斜面
４嵌合用凸部の上部外面
４ａ断面弧状の先端部
４ｂ断面直線状の傾斜面
５スタック用肩部
５ａスタック用肩部の外面部分
６スタック用裾部の内面部分
６ａ断面弧状の先端部
６ｂ断面直線状の傾斜面
７嵌合用凹部の最先端 DESCRIPTION OF SYMBOLS 1 Lid 1a Top plate 1b Inclined wall 1c Hem part 1d Skirt part 1e Flare part 1f Swelling part 1g Fitting recessed part 1h Horizontal flange 1i Bottom face 2 Container body 2a Bottom 2b Standing wall 2c Housing part 2d Hem part 2e Flare part 2f Fitting Joint convex part 2g Vertical wall part 2h Stacking skirt part 2i Horizontal flange 3 Lower inner surface 3a of fitting concave part Arc-shaped tip part 3b Straight cross-sectionally inclined face 4 Upper convex part 4a of fitting convex part Cross-sectional arc-shaped tip part 4b Inclined surface 5 having a straight cross section 5 Shoulder portion 5a for stacking Outer surface portion 6 for stacking shoulder portion 6a Inner surface portion for stacking skirt 6

Claims

蓋体を容器本体に外嵌合する嵌合構造として、前記容器本体側において平面方向外向きに突出する嵌合用凸部と、前記蓋体側において平面方向内向きに窪む嵌合用凹部とを備え、
外嵌合時は、前記嵌合用凹部の全体が外側から前記嵌合用凸部の下方に嵌り込んで閉蓋状態をなす一方、
外嵌合前は、前記嵌合用凹部の下部内面が前記嵌合用凸部の上部外面に乗って、前記外嵌合時よりも前記蓋体が前記容器本体から浮いた半開きの状態をなす包装用容器であって、
前記嵌合用凹部の前記下部内面、及び前記嵌合用凸部の前記上部外面はともに、外方に向かって下り、少なくとも一部において互いの形状が合致するアール値を有した断面弧状に形成され、前記半開きの状態で、前記蓋体の前記容器本体に対する平面方向の相対的な移動を規制したことを特徴とする包装用容器。 As a fitting structure for fitting the lid body to the container body, the fitting body includes a fitting protrusion protruding outward in the planar direction on the container body side, and a fitting recess recessed inward in the planar direction on the lid body side. ,
At the time of external fitting, the whole of the fitting concave portion is fitted from the outside to the lower side of the fitting convex portion to form a closed state,
Before the outer fitting, the lower inner surface of the fitting concave portion rides on the upper outer surface of the fitting convex portion, and the lid body is in a half-open state in which the lid body is lifted from the container body more than at the time of the outer fitting. A container,
The lower inner surface of the fitting concave portion and the upper outer surface of the fitting convex portion are both formed in an arcuate cross section having a rounded value that matches the shape of each other at least partly downward, A packaging container characterized in that, in the half-opened state, relative movement of the lid body in the planar direction with respect to the container body is restricted.

容器本体の嵌合用凸部の上部外面は、一部を蓋体の嵌合用凹部の下部内面と互いに形状が合致するアール値を有した断面弧状として、その上側には断面直線状の本体側傾斜面を連続して形成してなる請求項１記載の包装用容器。 The upper outer surface of the fitting convex part of the container main body is partially cross-sectionally arc-shaped with a rounded value that matches the shape of the lower inner surface of the concave fitting part of the lid, and the upper side of the container body is inclined to the main body side with a linear cross section. The packaging container according to claim 1, wherein the surface is formed continuously.

蓋体の嵌合用凹部の下部内面は、一部を容器本体の嵌合用凸部の上部外面と互いに形状が合致するアール値を有した断面弧状として、その上側には前記容器本体の嵌合用凸部の上部外面における本体側傾斜面に対応した断面直線状の蓋側傾斜面を連続して形成してなる請求項２記載の包装用容器。 The inner surface of the lower part of the fitting recess of the lid is partly arcuate with a rounded shape that matches the shape of the upper outer surface of the fitting convex part of the container body, and on the upper side thereof is the convex protrusion for fitting of the container body. The packaging container according to claim 2, wherein the lid side inclined surface having a linear cross section corresponding to the main body side inclined surface on the upper outer surface of the part is continuously formed.

蓋体は、嵌合用凹部の上側に、当該蓋体同士を積み重ねるスタック用肩部を有し、該スタック用肩部は、上位の蓋体の前記嵌合用凹部の下部内面が乗る外面部分が、前記嵌合用凹部の前記下部内面と少なくとも一部において互いの形状が合致するアール値を有した断面弧状である請求項１、２または３記載の包装用容器。 The lid body has a stack shoulder portion that stacks the lid bodies on the upper side of the fitting recess portion, and the stack shoulder portion is an outer surface portion on which the lower inner surface of the fitting recess portion of the upper lid body rides. The packaging container according to claim 1, 2 or 3, wherein the packaging recess has an arc-shaped cross section having a rounded value that matches the shape of the lower inner surface and at least part of the fitting recess.

容器本体は、嵌合用凸部の下側に、当該容器本体同士を積み重ねるスタック用裾部を有し、該スタック用裾部は、下位の容器本体の前記嵌合用凸部の上部外面に乗る内面部分が、前記嵌合用凸部の上部外面と少なくとも一部において互いの形状が合致するアール値を有した断面弧状である請求項１、２または３記載の包装用容器。 The container main body has a stack hem for stacking the container main bodies on the lower side of the fitting convex, and the stack hem is an inner surface that rides on the upper outer surface of the fitting convex of the lower container main body. The packaging container according to claim 1, 2 or 3, wherein the portion has an arc-shaped cross section having a rounded value that matches the shape of each other at least partly with the upper outer surface of the fitting convex portion.

容器本体のスタック用裾部の内面部分は、一部を下位の容器本体の嵌合用凸部の上部外面と互いの形状が合致するアール値を有した断面弧状として、その上側には前記容器本体の嵌合用凸部の上部外面における本体側傾斜面に対応した断面直線状の第二の本体側傾斜面を連続して形成してなる請求項５記載の包装用容器。 A part of the inner surface of the stack hem of the container body has an arc-shaped cross section with a rounded value that matches the shape of the upper outer surface of the fitting convex part of the lower container body, and the container body on the upper side thereof. The packaging container according to claim 5, wherein a second main body side inclined surface having a linear cross section corresponding to the main body side inclined surface of the upper outer surface of the fitting convex portion is continuously formed.

請求項４記載の蓋体と請求項５または６記載の容器本体とからなり、さらに、前記蓋体は、スタック用肩部と嵌合用凹部の上部間を、容器本体への外嵌合時に嵌合用凸部を収容する平面方向外向きの膨出部としている包装用容器。 A lid body according to claim 4 and a container body according to claim 5 or 6, wherein the lid body is fitted between the stack shoulder portion and the upper portion of the fitting concave portion when fitted to the container body. A packaging container which is a bulging portion facing outward in a planar direction for accommodating a joint convex portion.

蓋体は、嵌合用凹部の最も内向きに突き出る先端がスタック用肩部の基端よりも内向きに突き出ている請求項７記載の記載の包装用容器。 The packaging container according to claim 7, wherein the lid body has a distal end projecting inwardly inward from a proximal end of the stack shoulder portion.

蓋体の嵌合用凹部の下部の外縁は、外嵌合時において、その外縁が容器本体のスタック用裾部の外縁の上方に位置する請求項４から８のうち何れか一項記載の包装用容器。 The outer edge of the lower part of the fitting recess of the lid body is located above the outer edge of the stack hem part of the container body at the time of outer fitting. container.

蓋体の嵌合用凹部の下部の外縁と、容器本体のスタック用裾部の外縁はともに、水平なフランジに形成される一方、外嵌合時において、蓋体側の前記フランジが容器本体の前記フランジよりも僅かに外方に突出する請求項９記載の包装用容器。 The outer edge of the lower part of the fitting recess of the lid and the outer edge of the stacking skirt of the container body are both formed in a horizontal flange, while the flange on the lid side is the flange of the container body during the outer fitting. The packaging container according to claim 9, which protrudes slightly outward.