JP2021011312A5

JP2021011312A5 -

Info

Publication number: JP2021011312A5
Application number: JP2020056131A
Authority: JP
Filing date: 2020-03-26
Publication date: 2023-04-07

Description

すなわち、本発明における包装用容器の蓋体は、天面部と、上記天面部の周端縁より下側に拡がって傾斜しており角部分を有する側壁部と、上記側壁部の下端縁より外側に延出しているフランジ部と、上記フランジ部の外周端縁より下側に垂下している嵌合壁部とを備え、上記側壁部は、上記角部分に隣接する第１側壁部及び第２側壁部より外側に突出かつ緩やかに傾斜している凸状の突出部を有し、上記突出部の上端部は上記側壁部の上端縁と下端縁との間に位置し、上記突出部の下端部は上記フランジ部の内周端縁より外側に位置し、上記突出部の下端部の曲率半径は、６．５～１０ｍｍであることを特徴とする。
That is, the lid of the packaging container of the present invention includes a top surface portion, a side wall portion extending downward from the peripheral edge of the top surface portion and inclined and having a corner portion, and outside the lower edge of the side wall portion. and a fitting wall portion hanging downward from the outer peripheral edge of the flange portion. It has a projecting portion projecting outward from the side wall portion and gently inclined, the upper end portion of the projecting portion being located between the upper edge and the lower end edge of the side wall portion, and the lower end of the projecting portion. The portion is positioned outside the inner peripheral edge of the flange portion, and the radius of curvature of the lower end portion of the protrusion is 6.5 to 10 mm .

また、上記側壁部は、上記天面部の周端縁から下向きに垂下しており周方向に点在する角部分を有する側壁段差部を含み、上記側壁段差部の下端縁から下向きに拡がって傾斜しており、上記側壁段差部は、上記角部分に傾斜している隅切り部を有し、上記隅切り部と上記突出部との傾斜角は、略同等で、上記隅切り部の下端部と上記突出部の上端部とは、略面一状に連続していることが望ましい。
In addition, the side wall portion includes a side wall stepped portion that hangs downward from the peripheral edge of the top surface portion and has corner portions that are scattered in the circumferential direction. The side wall stepped portion has an inclined corner cut portion at the corner portion, the angle of inclination between the corner cut portion and the protrusion is substantially the same, and the lower end portion of the corner cut portion and the upper end portion of the projecting portion are preferably continuous in a substantially flush manner.

＜蓋体の概要＞
図１に示すように、蓋体Ｃ１は、天面部１と、天面部１の周端縁から連続で下向きに垂下している側壁段差部２を含み、側壁段差部２の下端縁から連続で下向きに拡がって傾斜している側壁部３と、側壁部３の下端縁から連続で上向きに傾斜しているフランジ段差部４と、フランジ段差部４の上端縁から連続で外向きに延出している平面状のフランジ部５と、フランジ部５の外周端縁から連続で下側に垂下している嵌合壁部６とを備えている。
なお、天面部１・側壁段差部２・側壁部３・フランジ段差部４・フランジ部５の平面視での形状は、蓋体Ｃ１と同等でも、正方形・円形・楕円形等でもよく、それぞれ異なっていてもよい。天面部１・側壁段差部２・側壁部３・フランジ段差部４・フランジ部５のサイズや寸法は、限定しない。
<Outline of lid>
As shown in FIG. 1, the lid C1 includes a top surface portion 1 and a side wall stepped portion 2 that continuously hangs downward from the peripheral edge of the top surface portion 1, and is continuous from the lower edge of the side wall stepped portion 2. A side wall portion 3 that spreads downward and slopes, a flange stepped portion 4 that continuously slopes upward from the lower edge of the side wall portion 3, and a flange stepped portion 4 that continuously extends outward from the upper edge of the flange stepped portion 4. and a fitting wall portion 6 continuously extending downward from the outer peripheral edge of the flange portion 5 .
The shape of the top surface portion 1, the side wall stepped portion 2, the side wall portion 3, the flange stepped portion 4, and the flange portion 5 in plan view may be the same as that of the lid C1, or may be square, circular, elliptical, or the like. may be The size and dimensions of the top surface portion 1, the side wall step portion 2, the side wall portion 3, the flange step portion 4, and the flange portion 5 are not limited.

＜側壁部の説明＞
図２に示すように、側壁部３は、第１側壁部に該当する平面状の長手側壁部３１と、第２側壁部に該当する短手側壁部３２と、長手側壁部３１と短手側壁部３２とで形成された角部分に該当する位置に長手側壁部３１及び短手側壁部３２より外側に突出かつ緩やかに傾斜している凸状の突出部３３を有する。側壁部３の上端縁は、側壁段差部２の上端縁に該当する。
なお、側壁部３は、垂直に対して５°～３０°傾斜していればよく、７～２５°傾斜していればさらに好ましく、１０～２５°傾斜していればより好ましい。長手側壁部３１及び短手側壁部３２は、平面状でも湾曲状でもよい。
<Description of side wall>
As shown in FIG. 2, the side wall portion 3 includes a planar long side wall portion 31 corresponding to a first side wall portion, a short side wall portion 32 corresponding to a second side wall portion, and a long side wall portion 31 and a short side wall portion. At a position corresponding to the corner formed by the portion 32 , there is a convex protrusion 33 that protrudes outward from the long side wall 31 and the short side wall 32 and is gently inclined. The upper edge of the side wall portion 3 corresponds to the upper edge of the side wall stepped portion 2 .
The side wall portion 3 may be inclined from 5° to 30° with respect to the vertical, more preferably from 7 to 25°, and more preferably from 10 to 25°. The long side wall portion 31 and the short side wall portion 32 may be planar or curved.

＜突出部の説明＞
図３に示すように、突出部３３は、長手側壁部３１及び短手側壁部３２との境界部分であり下向きに傾斜している直線状の突出第１境界部３３ａと、突出第１境界部３３ａから連続して外向きに平面状に形成された正面視で三角形状の突出側部３３ｂと、突出側部３３ｂの各々との境界部分であり突出第１境界部３３ａより緩やかに下向きに傾斜している直線状の突出第２境界部３３ｃと、突出第２境界部３３ｃの各々から連続して外向きにアーチ状に形成された正面視で長方形状の突出前部３３ｄと、突出前部３３ｄの一部であるアーチ状の上端部分で形成された突出上端部３３ｅと、突出側部３３ｂの一部である直線状の下端部分及び突出前部３３ｄの一部であるアーチ状の下端部分である突出前下端部３３ｆａで形成された突出下端部３３ｆとを有する。突出上端部３３ｅは、側壁部３の上端縁と下端縁との間に位置し、詳細には側壁段差部２の下端縁に位置し、突出下端部３３ｆは、フランジ部５に位置している。突出上端部３３ｅから突出下端部３３ｆまでの端面形状は、直線状である。換言すれば、突出部３３の正面視は、突出上端部３３ｅから突出下端部３３ｆに渡り、突出第１境界部３３ａ、突出側部３３ｂ、突出第２境界部３３ｃ、及び突出前部３３ｄが連続して、突出下端部３３ｆに近づくほど長手側壁部３１及び短手側壁部３２より外方向に張り出している。また、突出前部３３ｄの幅に特に制限はないが、７．０～１３．０ｍｍであればよく、９．０～１１．０ｍｍであればより好ましく、また、７．０～１５．０ｍｍであってもよいし、８．０～１４．０ｍｍであってもよいし、９．０～１４．０ｍｍであってもよい。突出前下端部３３ｆａの曲率半径は、６．５～１０ｍｍでもよく、好ましくは７．５ｍｍ～９ｍｍであり、より好ましくは７．５ｍｍ～８．５ｍｍであり、突出上端部３３ｅの曲率半径より大きいことから、突出部３３は末広がり状に形成されている。
この構成によれば、隅切り下端部２３ｃから伝わってきた外力が、突出上端部３３ｅから突出側部３３ｂ及び突出前部３３ｄを経由して突出下端部３３ｆに伝わりやすくなることが期待できる。詳細には、突出前下端部３３ｆａがフランジ部５の平坦部分に張り出していることにより、閉蓋の際に天面部１に加わる力がダイレクトにフランジ部５の四隅に伝わり、上記四隅の直下に位置する嵌合壁部６による嵌合がスムーズに行われる効果を期待できる。 <Description of Protruding Portion>
As shown in FIG. 3, the projecting portion 33 includes a downwardly inclined linear projecting first boundary portion 33a which is a boundary portion between the long side wall portion 31 and the short side wall portion 32, and a projecting first boundary portion 33a. A projecting side portion 33b, which is triangular in a front view and is formed in a planar shape continuously from 33a, and a boundary portion between each of the projecting side portions 33b, and is gently inclined downward from the projecting first boundary portion 33a. a linear protruding second boundary portion 33c, a protruding front portion 33d formed in an outward arch shape continuously from each of the protruding second boundary portions 33c, and a rectangular protruding front portion 33d when viewed from the front; A protruding upper end portion 33e formed by an arcuate upper end portion which is part of 33d, a linear lower end portion which is part of protruding side portion 33b and an arched lower end portion which is part of protruding front portion 33d. and a projecting lower end portion 33f formed by the projecting front lower end portion 33fa. The protruding upper end portion 33e is positioned between the upper end edge and the lower end edge of the side wall portion 3, more specifically, is positioned at the lower end edge of the side wall stepped portion 2, and the protruding lower end portion 33f is positioned at the flange portion 5. . The end face shape from the projecting upper end portion 33e to the projecting lower end portion 33f is linear. In other words, when viewed from the front of the protruding portion 33, the protruding first boundary portion 33a, the protruding side portion 33b, the protruding second boundary portion 33c, and the protruding front portion 33d are continuous from the protruding upper end portion 33e to the protruding lower end portion 33f. Then, it protrudes outward from the long side wall portion 31 and the short side wall portion 32 as it approaches the projecting lower end portion 33f. Also, the width of the projecting front portion 33d is not particularly limited, but may be 7.0 to 13.0 mm, more preferably 9.0 to 11.0 mm, and 7.0 to 15.0 mm. It may be 8.0 to 14.0 mm, or it may be 9.0 to 14.0 mm. The curvature radius of the protruding front lower end portion 33fa may be 6.5 to 10 mm, preferably 7.5 mm to 9 mm, more preferably 7.5 mm to 8.5 mm, and is larger than the curvature radius of the protruding upper end portion 33e. Therefore, the projecting portion 33 is formed in a widening shape.
According to this configuration, it can be expected that the external force transmitted from the corner-cut lower end portion 23c is easily transmitted from the projecting upper end portion 33e to the projecting lower end portion 33f via the projecting side portion 33b and the projecting front portion 33d. Specifically, since the projecting front lower end portion 33fa protrudes from the flat portion of the flange portion 5, the force applied to the top surface portion 1 when the lid is closed is directly transmitted to the four corners of the flange portion 5, and directly below the four corners. It is possible to expect an effect that the fitting is smoothly performed by the fitting wall portion 6 located.

Claims

a top surface portion, a side wall portion that spreads downward from the peripheral edge of the top surface portion and has a corner portion, a flange portion that extends outward from the lower edge of the side wall portion, and the flange portion. a fitting wall portion that hangs downward from the outer peripheral edge,
the side wall portion has a gently sloping projecting portion projecting outward from the first side wall portion and the second side wall portion adjacent to the corner portion;
the upper end of the projection is located between the upper edge and the lower edge of the side wall, the lower end of the projection is located outside the inner peripheral edge of the flange,
The curvature radius of the lower end of the protrusion is 6.5 to 10 mm
A lid for a packaging container, characterized by:

The side wall portion includes a side wall stepped portion that hangs downward from the peripheral edge of the top surface portion and has corner portions that are scattered in the circumferential direction. cage,
The side wall stepped portion has an inclined corner cut portion at the corner portion,
The angles of inclination of the corner cut portion and the projection portion are substantially the same,
The lid for a packaging container according to claim 1, wherein the lower end of the corner cut portion and the upper end of the projecting portion are substantially flush with each other.

further comprising a flange step portion sloping upward from the lower edge of the side wall portion;
The flange portion extends outward from an upper edge of the flange stepped portion,
3. The lid of the packaging container according to claim 1, wherein the lower end of the projecting portion is positioned outside the inner peripheral edge of the flange beyond the flange stepped portion.

The lid for a packaging container according to any one of claims 1 to 3, wherein the fitting wall portion has a wide fitting portion at a position close to the lower end of the projecting portion.

A packaging container comprising: the lid of the packaging container according to any one of claims 1 to 4; and a container main body externally fitted to the fitting portion of the lid.