JP7237734B2

JP7237734B2 - volatilization device

Info

Publication number: JP7237734B2
Application number: JP2019101081A
Authority: JP
Inventors: 知子小野; 諒子小林
Original assignee: ST Corp
Current assignee: ST Corp
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2023-03-13
Anticipated expiration: 2039-05-30
Also published as: JP2020192235A

Description

本発明は、例えば、芳香剤や消臭剤などの揮発性を有する薬剤を揮散させる揮散装置に関する。 TECHNICAL FIELD The present invention relates to a volatilization device that volatilizes volatile chemicals such as aromatics and deodorants.

従来、芳香剤や消臭剤などの薬剤を揮散させる揮散装置として、例えば、複数の揮散口を有する蓋体を薬剤を収容した容器本体の開口部に取り付けた揮散装置が知られている。 BACKGROUND ART Conventionally, as a volatilization device for volatilizing chemicals such as aromatics and deodorants, for example, a volatilization device is known in which a lid having a plurality of volatilization ports is attached to an opening of a container body containing a chemical.

また、この種の揮散装置として、蓋体の外周部に冠状のフランジ（囲いのようなもの）を設けて、フランジの内側に別の揮散装置を重ねて載置することができるようにした揮散装置が知られている。複数個の揮散装置を上下に重ねて陳列することにより、陳列のためのスペースを小さくすることができるとともに、商品の見栄えを良くすることができる。 In addition, as this type of volatilization device, a crown-shaped flange (like an enclosure) is provided on the outer periphery of the lid, and another volatilization device can be stacked inside the flange. device is known. By vertically stacking and displaying a plurality of volatilization devices, the space for display can be reduced and the appearance of the merchandise can be improved.

特開２００２－３５５３０２号公報Japanese Unexamined Patent Application Publication No. 2002-355302

しかし、上述した従来の揮散装置は、上下に重ねた状態における姿勢安定性を確保するため、蓋体の外周縁部に冠状のフランジを設ける必要があり、デザイン上の自由度が低かった。 However, the above-described conventional volatilization device requires a crown-shaped flange to be provided on the outer peripheral edge of the lid in order to ensure posture stability in a vertically stacked state, and has a low degree of freedom in design.

本発明は、上記の点に鑑みてなされたもので、デザイン上の自由度が高く上下に安定して重ねることができる揮散装置を提供することを目的とする。 The present invention has been made in view of the above points, and an object of the present invention is to provide a volatilization device that has a high degree of freedom in design and can be stably stacked vertically.

本発明の揮散装置の一態様は、複数の揮散口を有してドーム状に膨出した表面形状を有する蓋体と、蓋体を装着する開口部および底部を有し、底部の下面に蓋体の前記表面形状と一致する形状の凹部を有し、薬剤を収容した容器本体と、を有する。
One aspect of the volatilization device of the present invention has a lid body having a plurality of volatilization ports and a dome- shaped surface shape , an opening for mounting the lid body and a bottom, and a lid on the lower surface of the bottom a container body having a recess having a shape that matches the surface shape of the body and containing a medicine.

本発明の一態様によれば、デザイン上の自由度が高く上下に安定して重ねることができる揮散装置を提供することができる。 ADVANTAGE OF THE INVENTION According to one aspect of the present invention, it is possible to provide a volatilization device that has a high degree of freedom in design and can be stably stacked vertically.

図１は、実施形態に係る揮散装置を示す外観斜視図である。FIG. 1 is an external perspective view showing a volatilization device according to an embodiment. 図２は、図１の揮散装置の容器本体を示す外観斜視図である。2 is an external perspective view showing a container body of the volatilization device of FIG. 1. FIG. 図３は、図１の揮散装置の蓋体を示す外観斜視図である。3 is an external perspective view showing a lid body of the volatilization device of FIG. 1. FIG. 図４は、図１の揮散装置をＦ４－Ｆ４に沿って切断した断面図である。FIG. 4 is a cross-sectional view of the volatilization device of FIG. 1 cut along F4-F4. 図５は、図１の揮散装置を矢印Ｆ５方向から見た平面図である。FIG. 5 is a plan view of the volatilization device of FIG. 1 as viewed in the direction of arrow F5. 図６は、図１の揮散装置の上に別の揮散装置を重ねた状態を示す部分断面図である。6 is a partial cross-sectional view showing a state in which another volatilization device is superimposed on the volatilization device of FIG. 1. FIG.

以下、本発明の実施形態について図面を参照して説明する。
図１に示すように、本発明の一実施形態に係る揮散装置１０は、容器本体２と蓋体４を有する。容器本体２は、例えばポリエチレンテフタレート（ＰＥＴ）樹脂により形成されている。蓋体４は、例えばポリプロピレン（ＰＰ）樹脂により形成されている。容器本体２および蓋体４の材質は、上記のものに限定されるものではなく、例えば、収容する薬剤の成分に合わせて、ポリエチレン（ＰＥ）樹脂やポリスチレン（ＰＳ）樹脂、ポリカーボネート（ＰＣ）樹脂やポリ塩化ビニル（ＰＶＣ）樹脂、または合成樹脂以外にもガラスや金属など種々変更が可能である。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a volatilization device 10 according to one embodiment of the present invention has a container body 2 and a lid 4. As shown in FIG. The container body 2 is made of polyethylene terephthalate (PET) resin, for example. The lid 4 is made of polypropylene (PP) resin, for example. The materials of the container body 2 and the lid 4 are not limited to those mentioned above. , polyvinyl chloride (PVC) resin , or other than synthetic resin, such as glass or metal.

図２および図４に示すように、容器本体２は、略円筒状の周壁１１と、周壁１１の図示下端を塞ぐ略円板状の底壁１２（底部）と、を一体に有する。底壁１２は、容器本体２の内側に向けて（図示上方に）凹んだ略円形のドーム状の凹部１５を有する。凹部１５は、底壁１２の下面に設ければよく、底壁１２の肉厚内に形成してもよい。 As shown in FIGS. 2 and 4, the container body 2 integrally has a substantially cylindrical peripheral wall 11 and a substantially disk-shaped bottom wall 12 (bottom portion) that closes the lower end of the peripheral wall 11 in the drawing. The bottom wall 12 has a substantially circular dome-shaped recess 15 recessed toward the inside of the container body 2 (upward in the drawing). The recess 15 may be provided on the lower surface of the bottom wall 12 and may be formed within the thickness of the bottom wall 12 .

凹部１５は、底壁１２の中心と同心に設けられている。凹部１５は、後述する蓋体４のドーム形状に合った曲面形状を有する。凹部１５の中央には、容器本体２の内側に向けてさらに凹んだ有底の略円筒状の凹み１６が設けられている。凹み１６も凹部１５の底に形成すればよく、底壁１２の肉厚内に形成してもよい。凹み１６は、後述する蓋体４の突起２４を受け入れ可能な形状および大きさを有する。 The recess 15 is provided concentrically with the center of the bottom wall 12 . The concave portion 15 has a curved surface shape that matches the dome shape of the lid body 4, which will be described later. At the center of the recess 15 , a substantially cylindrical recess 16 with a bottom that is further recessed toward the inside of the container body 2 is provided. The recess 16 may also be formed at the bottom of the recess 15 and may be formed within the thickness of the bottom wall 12 . The recess 16 has a shape and size capable of receiving a projection 24 of the lid 4, which will be described later.

凹部１５および凹み１６を有する底壁１２は、底壁１２を貫通した孔を有しておらず、１枚の板状体により形成されている。一方、周壁１１の底壁１２から離間した図示上端は開放している。つまり、底壁１２から離間した周壁１１の図示上端には円形の開口部１３が設けられている。容器本体２は、例えば、樹脂の一体成形により形成されており、芳香剤や消臭剤などの揮発性を有する薬剤（図示省略）を収容する。 The bottom wall 12 having the recess 15 and the recess 16 does not have a hole penetrating through the bottom wall 12 and is formed of a single plate-like body. On the other hand, the illustrated upper end of the peripheral wall 11 which is spaced apart from the bottom wall 12 is open. That is, a circular opening 13 is provided at the upper end in the figure of the peripheral wall 11 spaced apart from the bottom wall 12 . The container body 2 is formed by integral molding of resin, for example, and accommodates volatile chemicals (not shown) such as aromatics and deodorants.

周壁１１の上端外周面には、容器本体２の開口部１３に蓋体４を装着するための略円環状の段部１４が設けられている。段部１４の外径は、周壁１１の外径よりわずかに小さい。段部１４の外周面には、蓋体４の後述する複数の係合爪２２ａを係合させるための円環状の突条部１４ａが一体に突設されている。突条部１４ａは、段部１４の外周面から径方向の外方に向けて突出している。突条部１４ａが段部１４の外周面から外方へ突出した突出高さは、周壁１１の外周面を超えない高さである。突条部１４ａは、段部１４の上下方向の中間位置に設けられている。 A substantially annular stepped portion 14 for attaching the lid 4 to the opening 13 of the container body 2 is provided on the outer peripheral surface of the upper end of the peripheral wall 11 . The outer diameter of the stepped portion 14 is slightly smaller than the outer diameter of the peripheral wall 11 . An annular projection 14a is integrally formed on the outer peripheral surface of the stepped portion 14 to engage a plurality of engaging claws 22a of the lid 4, which will be described later. The ridge portion 14 a protrudes radially outward from the outer peripheral surface of the stepped portion 14 . The protrusion height of the protrusion 14 a protruding outward from the outer peripheral surface of the stepped portion 14 does not exceed the outer peripheral surface of the peripheral wall 11 . The ridge portion 14 a is provided at an intermediate position in the vertical direction of the stepped portion 14 .

図３および図４に示すように、蓋体４は、容器本体２に近い図示下端側に、容器本体２の段部１４に外側から重なる略円筒状の縁壁部２２を有する。また、蓋体４は、縁壁部２２の上端縁部から図示上方に膨出した部分を有する。 As shown in FIGS. 3 and 4 , the lid 4 has a substantially cylindrical edge wall portion 22 on the lower end side near the container body 2 in the drawing, which overlaps the stepped portion 14 of the container body 2 from the outside. Further, the lid body 4 has a portion that protrudes upward in the drawing from the upper end edge portion of the edge wall portion 22 .

図１に示すように、縁壁部２２の外径は、容器本体２の周壁１１の外径と略同じである。縁壁部２２の図示上下方向の幅は、容器本体２の段部１４の幅と略同じである。縁壁部２２の内径は、容器本体２の段部１４の外径より大きい。よって、縁壁部２２を段部１４の外側に重ねることができる。 As shown in FIG. 1 , the outer diameter of the edge wall portion 22 is substantially the same as the outer diameter of the peripheral wall 11 of the container body 2 . The width of the edge wall portion 22 in the vertical direction in the figure is substantially the same as the width of the stepped portion 14 of the container body 2 . The inner diameter of the edge wall portion 22 is larger than the outer diameter of the stepped portion 14 of the container body 2 . Therefore, the edge wall portion 22 can be superimposed on the outside of the stepped portion 14 .

縁壁部２２の内周面には、容器本体２の段部１４に設けた突条部１４ａに係合する複数（本実施形態では４つ）の係合爪２２ａが設けられている。各係合爪２２ａは、縁壁部２２の内周面から内側に突出して設けられている。複数の係合爪２２ａは、周方向に等間隔で設けられている。係合爪２２ａの個数は、４個に限らず、任意に設定可能である。 The inner peripheral surface of the edge wall portion 22 is provided with a plurality of (four in this embodiment) engaging claws 22a that engage with the ridges 14a provided on the stepped portion 14 of the container body 2 . Each engaging claw 22 a is provided so as to protrude inward from the inner peripheral surface of the edge wall portion 22 . The plurality of engaging claws 22a are provided at regular intervals in the circumferential direction. The number of engaging claws 22a is not limited to four and can be set arbitrarily.

容器本体２の段部１４の外側に蓋体４の縁壁部２２を重ねて蓋体４を容器本体２に向けて押し込むと、複数の係合爪２２ａが容器本体２の段部１４に設けた突条部１４ａを乗り越えて突条部１４ａに係合する。 When the edge wall portion 22 of the lid body 4 is placed on the outside of the stepped portion 14 of the container body 2 and the lid body 4 is pushed toward the container body 2, a plurality of engaging claws 22a are provided on the stepped portion 14 of the container body 2. It climbs over the projected streak portion 14a and engages with the projected streak portion 14a.

係合爪２２ａの突出高さおよび突条部１４ａの突出高さは、蓋体４の縁壁部２２や容器本体２の段部１４の弾性変形を伴って、複数の係合爪２２ａが容器本体２の段部１４に設けた突条部１４ａを乗り越えることができる高さに設計されている。複数の係合爪２２ａが突条部１４ａを乗り越えた後で、弾性変形した縁壁部２２や段部１４が元の形状に戻り、複数の係合爪２２ａが突条部１４ａに係合し、蓋体４が容器本体２に固定され、蓋体４の脱落が防止される。 The projecting height of the engaging claws 22a and the projecting height of the ridge portion 14a are adjusted according to the elastic deformation of the edge wall portion 22 of the lid 4 and the step portion 14 of the container body 2, and the plurality of engaging claws 22a are adjusted to the container. The height is designed so that it can get over the ridge 14a provided on the stepped portion 14 of the main body 2. - 特許庁After the plurality of engaging claws 22a get over the ridge portion 14a, the elastically deformed edge wall portion 22 and the stepped portion 14 return to their original shapes, and the plurality of engaging claws 22a are engaged with the ridge portion 14a. , the lid 4 is fixed to the container body 2, and the lid 4 is prevented from coming off.

容器本体２に蓋体４を固定するための取り付け構造は、上述した突条部１４ａと係合爪２２ａによるものに限らず、任意に変更可能である。例えば、容器本体２の段部１４の外周面に雄ネジを設けて、蓋体４の縁壁部２２の内周面に雌ネジを設けてもよい。この場合、容器本体２の段部１４に蓋体４の縁壁部２２を重ねて蓋体４を回転させ、容器本体２の段部１４に蓋体４の縁壁部２２を螺合することができる。 The mounting structure for fixing the lid 4 to the container body 2 is not limited to the above-described protrusion 14a and engaging claws 22a, and can be arbitrarily changed. For example, a male screw may be provided on the outer peripheral surface of the stepped portion 14 of the container body 2 and a female screw may be provided on the inner peripheral surface of the edge wall portion 22 of the lid 4 . In this case, the edge wall portion 22 of the lid 4 is superimposed on the stepped portion 14 of the container body 2 , the lid 4 is rotated, and the edge wall portion 22 of the lid 4 is screwed to the stepped portion 14 of the container body 2 . can be done.

蓋体４は、縁壁部２２の図示上端（容器本体２から離間した側の端部）から後述する略円筒状の突起２４に向けて徐々に縮径しつつ図示上方に向けてドーム状に膨出した形状を有する。突起２４は、縁壁部２２から離れる方向（図示上方）に突出している。突起２４は、上述した容器本体２の底壁１２の凹部１５に設けた凹み１６内に挿入可能な形状および大きさを有する。 The lid body 4 has a dome shape upward in the drawing while gradually decreasing in diameter from the upper end of the edge wall portion 22 (the end on the side away from the container body 2) toward a substantially cylindrical projection 24 described later. It has a bulging shape. The projection 24 protrudes in a direction away from the edge wall portion 22 (upward in the drawing). The protrusion 24 has a shape and size that allow it to be inserted into the recess 16 provided in the recess 15 of the bottom wall 12 of the container body 2 described above.

凹み１６および突起２４の形状および大きさは、例えば図６に示すように、２つの揮散装置１０、１０’を上下に重ねたときに、上方の揮散装置１０’の容器本体２の底壁１２に設けた凹み１６内に下方の揮散装置１０の蓋体４の突起２４がちょうど嵌り、下方の揮散装置１０に対する上方の揮散装置１０’の移動を規制することができる形状および大きさであればよい。 The shape and size of the recesses 16 and the protrusions 24 are such that, for example, as shown in FIG. If the projection 24 of the lid 4 of the lower volatilization device 10 is just fitted into the recess 16 provided in the lower volatilization device 10, and the shape and size are such that the movement of the upper volatilization device 10' relative to the lower volatilization device 10 can be restricted. good.

本実施形態の突起２４の突出高さは、容器本体２の凹み１６の深さよりわずかに小さい。また、突起２４の外径は、凹み１６の内径よりわずかに小さい。さらに、蓋体４のドーム状部分の表面形状（後に詳述する）は、容器本体２の底壁１２に設けた凹部１５の形状と略一致する。よって、２つの揮散装置１０、１０’を上下に重ねると、下方の揮散装置１０の蓋体４の突起２４が上方の揮散装置１０’の容器本体２の底壁１２の凹み１６に嵌り、下方の揮散装置１０の蓋体４の膨出側の表面の一部が上方の揮散装置１０’の容器本体２の凹部１５の底面に接触する。この状態で、下方の揮散装置１０の蓋体４が上方の揮散装置１０’の容器本体２の底壁１２を下方から支え、上方の揮散装置１０’の底壁１２に設けた凹み１６に嵌った下方の揮散装置１０の蓋体４の突起２４が上方の揮散装置１０’の倒れや脱落を防止する。 The projection height of the protrusion 24 of this embodiment is slightly smaller than the depth of the recess 16 of the container body 2 . Also, the outer diameter of the protrusion 24 is slightly smaller than the inner diameter of the recess 16 . Furthermore, the surface shape of the dome-shaped portion of the lid 4 (described in detail later) substantially matches the shape of the recess 15 provided in the bottom wall 12 of the container body 2 . Therefore, when the two volatilization devices 10, 10' are stacked vertically, the protrusion 24 of the lid 4 of the lower volatilization device 10 fits into the recess 16 of the bottom wall 12 of the container body 2 of the upper volatilization device 10', and the lower Part of the bulging side surface of the lid 4 of the volatilization device 10 contacts the bottom surface of the concave portion 15 of the container body 2 of the upper volatilization device 10'. In this state, the lid 4 of the lower volatilization device 10 supports the bottom wall 12 of the container body 2 of the upper volatilization device 10' from below, and fits into the recess 16 provided in the bottom wall 12 of the upper volatilization device 10'. The protrusion 24 of the lid 4 of the lower volatilization device 10 prevents the upper volatilization device 10' from falling or falling off.

なお、容器本体２の底壁１２に設けた凹み１６および蓋体４の突起２４の形状や大きさは、本実施形態のものに限定されるものではなく、揮散装置１０、１０’を上下に積み重ねたときの姿勢安定性を確保することができるものであればいかなるものであってもよい。また、本実施形態では、容器本体２の底壁１２に凹み１６を設けて蓋体４に突起２４を設けたが、逆であってもよい。つまり、容器本体２の底壁１２の凹部１５の中央から外方（下方）へ突出した突起（図示せず）を設けて蓋体４の頂部にこの突起を嵌める穴部（図示せず）を設けてもよい。この場合、凹部１５の中央から突出した突起の突出高さは、底壁１２の下面のレベルを超えない高さである必要がある。 The shape and size of the recess 16 provided in the bottom wall 12 of the container body 2 and the projection 24 of the lid 4 are not limited to those of the present embodiment, and the volatilization devices 10, 10' Any material may be used as long as it can ensure posture stability when stacked. Further, in the present embodiment, the bottom wall 12 of the container body 2 is provided with the recess 16 and the lid 4 is provided with the projection 24, but the reverse may be possible. That is, a projection (not shown) protruding outward (downward) from the center of the recess 15 of the bottom wall 12 of the container body 2 is provided, and a hole (not shown) is formed in the top of the lid 4 to fit the projection. may be provided. In this case, the height of the protrusion protruding from the center of the recess 15 should not exceed the level of the lower surface of the bottom wall 12 .

蓋体４は、縁壁部２２と突起２４との間の上述した膨出部分に複数の揮散口２１ａ～２１ｎ、２３ａ～２３ｆ、２５ａ～２５ｌを有する。言い換えると、蓋体４の膨出した部分は、複数の揮散口２１ａ～２１ｎ、２３ａ～２３ｆ、２５ａ～２５ｌを区画する複数本のリブ３１ａ～３１ｊ、３２ａ～３２ｌ、３３ａ～３３ｌ、３４ａ～３４ｈ、３５ａ～３５ｌ、および特定の揮散口（実際には開口していないため揮散口ではない）だけを塞いだ複数枚の閉塞板部４１ａ、４１ｂ、４２ａ、４２ｂにより形成されている。蓋体４、すなわち縁壁部２２、突起２４、リブ３１ａ～３１ｊ、３２ａ～３２ｌ、３３ａ～３３ｌ、３４ａ～３４ｈ、３５ａ～３５ｌ、および閉塞板部４１ａ、４１ｂ、４２ａ、４２ｂは、例えば、樹脂の一体成形により形成されている。 The cover 4 has a plurality of volatilization ports 21a-21n, 23a-23f, and 25a-25l in the above-described bulging portion between the edge wall portion 22 and the projection 24. In other words, the bulging portion of the lid 4 is a plurality of ribs 31a to 31j, 32a to 32l, 33a to 33l, 34a to 34h that partition the volatilization ports 21a to 21n, 23a to 23f, and 25a to 25l. , 35a to 35l, and a plurality of blocking plate portions 41a, 41b, 42a, and 42b that block only specific volatilization ports (not volatilization ports because they are not actually opened). The lid 4, that is, the edge wall portion 22, the projections 24, the ribs 31a to 31j, 32a to 32l, 33a to 33l, 34a to 34h, 35a to 35l, and the closing plate portions 41a, 41b, 42a, 42b are made of resin, for example. is formed by integral molding of

複数本のリブ３１ａ～３１ｊ、３２ａ～３２ｌ、３３ａ～３３ｌ、３４ａ～３４ｈ、３５ａ～３５ｌの形状、すなわち複数の揮散口２１ａ～２１ｎ、２３ａ～２３ｆ、２５ａ～２５ｌの形状は、蓋体４の機械強度およびデザイン性を考慮した形状に形成することが望ましい。また、複数本のリブ３１ａ～３１ｊ、３２ａ～３２ｌ、３３ａ～３３ｌ、３４ａ～３４ｈ、３５ａ～３５ｌの配置、すなわち複数の揮散口２１ａ～２１ｎ、２３ａ～２３ｆ、２５ａ～２５ｌのレイアウトも、蓋体４の機械強度およびデザイン性を考慮しつつ自由に設計できる。つまり、複数本のリブ３１ａ～３１ｊ、３２ａ～３２ｌ、３３ａ～３３ｌ、３４ａ～３４ｈ、３５ａ～３５ｌおよび複数の揮散口２１ａ～２１ｎ、２３ａ～２３ｆ、２５ａ～２５ｌは、本実施形態における形状およびレイアウトに限定されるものではなく、その形状およびレイアウトは任意に変更可能である。 The shape of the plurality of ribs 31a to 31j, 32a to 32l, 33a to 33l, 34a to 34h, and 35a to 35l, that is, the shape of the plurality of volatilization ports 21a to 21n, 23a to 23f, and 25a to 25l of the lid 4 It is desirable to form the shape in consideration of mechanical strength and designability. In addition, the arrangement of the plurality of ribs 31a to 31j, 32a to 32l, 33a to 33l, 34a to 34h, and 35a to 35l, that is, the layout of the plurality of volatilization ports 21a to 21n, 23a to 23f, and 25a to 25l also It can be designed freely while considering the mechanical strength and design of 4. That is, the plurality of ribs 31a to 31j, 32a to 32l, 33a to 33l, 34a to 34h, 35a to 35l and the plurality of volatilization ports 21a to 21n, 23a to 23f, 25a to 25l have the shape and layout in the present embodiment. , and the shape and layout can be changed arbitrarily.

ここで、主に図５を参照して、本実施形態の蓋体４のリブ３１ａ～３１ｊ、３２ａ～３２ｌ、３３ａ～３３ｌ、３４ａ～３４ｈ、３５ａ～３５ｌ、揮散口２１ａ～２１ｎ、２３ａ～２３ｆ、２５ａ～２５ｌ、および閉塞板部４１ａ、４１ｂ、４２ａ、４２ｂの形状およびレイアウトについて詳細に説明する。
蓋体４は、縁壁部２２と同心に配置された環状リブ３１を有する。環状リブ３１の直径（円形ではないので例えば径方向の平均的な長さ）は、縁壁部２２の直径より小さい。本実施形態の環状リブ３１は、縁壁部２２の半径よりわずかに大きい直径を有する。環状リブ３１は、２本の円弧状リブ３１ａ、３１ｂと８つの渦状リブ３１ｃ、３１ｄ、３１ｅ、３１ｆ、３１ｇ、３１ｈ、３１ｉ、３１ｊを環状につなげた形状を有する。より正確には、渦状リブ３１ｃ、３１ｄ、３１ｅ、３１ｆ、３１ｇ、３１ｈ、３１ｉ、３１ｊは、それぞれ、その全体が環状リブ３１の一部として機能する訳ではなく、環状リブ３１として機能する部分と後述する支えリブ３４ａ、３４ｂ、３４ｃ、３４ｄ、３４ｅ、３４ｆ、３４ｇ、３４ｈとして機能する部分を含む。 Here, referring mainly to FIG. 5, the ribs 31a to 31j, 32a to 32l, 33a to 33l, 34a to 34h, 35a to 35l, volatilization ports 21a to 21n, 23a to 23f of the lid 4 of the present embodiment. , 25a to 25l, and the shape and layout of the closing plate portions 41a, 41b, 42a, 42b will be described in detail.
The lid 4 has an annular rib 31 arranged concentrically with the edge wall portion 22 . The diameter of the annular rib 31 (for example, the average length in the radial direction since it is not circular) is smaller than the diameter of the edge wall portion 22 . The annular rib 31 in this embodiment has a diameter slightly larger than the radius of the edge wall 22 . The annular rib 31 has a shape in which two arcuate ribs 31a and 31b and eight spiral ribs 31c, 31d, 31e, 31f, 31g, 31h, 31i and 31j are connected in an annular shape. More precisely, each of the spiral ribs 31c, 31d, 31e, 31f, 31g, 31h, 31i, 31j does not function as a part of the annular rib 31 in its entirety, but rather as a part functioning as the annular rib 31. It includes portions that function as support ribs 34a, 34b, 34c, 34d, 34e, 34f, 34g, and 34h, which will be described later.

２つの円弧状リブ３１ａ、３１ｂは、ドーム状に膨出した蓋体４の頂部に設けた突起２４を中心にした円弧に沿った形状に形成されている。２つの円弧状リブ３１ａ、３１ｂは、突起２４を間に挟んで蓋体４の径方向に対向する位置に配置されている。環状リブ３１は、２つの円弧状リブ３１ａ、３１ｂの間にそれぞれ４つずつ渦状リブ３１ｃ、３１ｄ、３１ｅ、３１ｆ、３１ｇ、３１ｈ、３１ｉ、３１ｊを有する。渦状リブ３１ｃ、３１ｄ、３１ｅ、３１ｆ、３１ｇ、３１ｈ、３１ｉ、３１ｊは、それぞれ、円弧状リブ３１ａ、３１ｂとは逆向きに湾曲した螺旋状に形成されている。 The two arcuate ribs 31a and 31b are formed in a shape along an arc around a protrusion 24 provided on the top of the dome-shaped bulging lid 4. As shown in FIG. The two arc-shaped ribs 31a and 31b are arranged at positions facing each other in the radial direction of the lid 4 with the protrusion 24 interposed therebetween. The annular rib 31 has four spiral ribs 31c, 31d, 31e, 31f, 31g, 31h, 31i, and 31j between two arcuate ribs 31a and 31b. The spiral ribs 31c, 31d, 31e, 31f, 31g, 31h, 31i, and 31j are each formed in a spiral shape curved in the opposite direction to the arcuate ribs 31a and 31b.

具体的には、一方の円弧状リブ３１ａの一端（図示時計回り方向の下流側端部）に連結部分Ｐ１を介して渦状リブ３１ｃの基端が連結され、渦状リブ３１ｃの中間部分に連結部分Ｐ２を介して渦状リブ３１ｄの中間部分が連結されている。２つの渦状リブ３１ｃ、３１ｄは、その中間部分において湾曲形状の外側同士が連結部分Ｐ２を介して連結されている。また、渦状リブ３１ｄの基端に連結部分Ｐ３を介して渦状リブ３１ｅの基端が連結されている。さらに、渦状リブ３１ｅの中間部分に連結部分Ｐ４を介して渦状リブ３１ｆの中間部分が連結され、渦状リブ３１ｆの基端に連結部分Ｐ５を介してもう一方の円弧状リブ３１ｂの一端（図示時計回り方向の上流側端部）が連結されている。 Specifically, the proximal end of the spiral rib 31c is connected to one end of one of the arc-shaped ribs 31a (the downstream end in the clockwise direction in the drawing) via a connecting portion P1, and the intermediate portion of the spiral rib 31c is connected to the connecting portion. An intermediate portion of the spiral rib 31d is connected via P2. The curved outer sides of the two spiral ribs 31c and 31d are connected to each other via a connecting portion P2 at the intermediate portion. Also, the proximal end of the spiral rib 31e is connected to the proximal end of the spiral rib 31d via a connecting portion P3. Further, the intermediate portion of the spiral rib 31f is connected to the intermediate portion of the spiral rib 31e via the connecting portion P4, and the base end of the spiral rib 31f is connected to the other end of the arcuate rib 31b via the connecting portion P5 (see clock in the figure). upstream end in the rotating direction) are connected.

同様に、円弧状リブ３１ｂの他端（図示時計回り方向の下流側端部）に連結部分Ｐ６を介して渦状リブ３１ｇの基端が連結され、渦状リブ３１ｇの中間部分に連結部分Ｐ７を介して渦状リブ３１ｈの中間部分が連結されている。２つの渦状リブ３１ｇ、３１ｈは、その中間部分において湾曲形状の外側同士が連結部分Ｐ７を介して連結されている。また、渦状リブ３１ｈの基端に連結部分Ｐ８を介して渦状リブ３１ｉの基端が連結されている。さらに、渦状リブ３１ｉの中間部分に連結部分Ｐ９を介して渦状リブ３１ｊの中間部分が連結され、渦状リブ３１ｊの基端に連結部分Ｐ１０を介して円弧状リブ３１ａの他端（図示時計回り方向の上流側端部）が連結されている。 Similarly, the base end of the spiral rib 31g is connected to the other end of the arcuate rib 31b (the downstream end in the clockwise direction in the figure) via a connecting portion P6, and the intermediate portion of the spiral rib 31g is connected to the middle portion of the spiral rib 31g via a connecting portion P7. The middle portion of the spiral rib 31h is connected with the . The curved outer sides of the two spiral ribs 31g and 31h are connected to each other via a connecting portion P7 at the intermediate portion. Also, the proximal end of the spiral rib 31i is connected to the proximal end of the spiral rib 31h via a connecting portion P8. Furthermore, the intermediate portion of the spiral rib 31j is connected to the intermediate portion of the spiral rib 31i via the connecting portion P9, and the base end of the spiral rib 31j is connected to the other end of the arcuate rib 31a (clockwise direction in the drawing) via the connecting portion P10. upstream end) are connected.

縁壁部２２と環状リブ３１の間には、１２本の傾斜リブ３２ａ、３２ｂ、３２ｃ、３２ｄ、３２ｅ、３２ｆ、３２ｇ、３２ｈ、３２ｉ、３２ｊ、３２ｋ、３２ｌ、および１２本の湾曲リブ３３ａ、３３ｂ、３３ｃ、３３ｄ、３３ｅ、３３ｆ、３３ｇ、３３ｈ、３３ｉ、３３ｊ、３３ｋ、３３ｌがかけ渡されている。傾斜リブ３２ａ～３２ｌおよび湾曲リブ３３ａ～３３ｌは、蓋体４の周方向に沿って２本ずつ交互に等間隔で並べて設けられている。傾斜リブ３２ａ～３２ｌは、その傾斜方向を交互に異ならせて配置されている。湾曲リブ３３ａ～３３ｌは、湾曲の向きを交互に異ならせて配置されている。 Between the edge wall 22 and the annular rib 31 are twelve inclined ribs 32a, 32b, 32c, 32d, 32e, 32f, 32g, 32h, 32i, 32j, 32k, 32l and twelve curved ribs 33a, 33b, 33c, 33d, 33e, 33f, 33g, 33h, 33i, 33j, 33k, and 33l are spanned. Two inclined ribs 32a to 32l and two curved ribs 33a to 33l are alternately arranged along the circumferential direction of the lid 4 at equal intervals. The slanted ribs 32a to 32l are arranged so that their slanting directions are alternately different. The curved ribs 33a to 33l are arranged so that their curved directions are alternately different.

具体的には、傾斜リブ３２ａの一端が連結部分Ｐ１１を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ａの他端が上述した連結部分Ｐ１を介して環状リブ３１に連結されている。また、湾曲リブ３３ａの一端が連結部分Ｐ１２を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ａの他端が連結部分Ｐ１を介して環状リブ３１に連結されている。また、湾曲リブ３３ｂの一端が連結部分Ｐ１２を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｂの他端が連結部分Ｐ１を介して環状リブ３１に連結されている。２本の湾曲リブ３３ａ、３３ｂは、湾曲の内側が互いに対向する向きで連結部分Ｐ１と連結部分Ｐ１２の間に設けられている。さらに、傾斜リブ３２ｂの一端が連結部分Ｐ１３を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｂの他端が連結部分Ｐ１を介して環状リブ３１に連結されている。 Specifically, one end of the inclined rib 32a is connected to the upper edge portion of the edge wall portion 22 via the connecting portion P11, and the other end of the inclined rib 32a is connected to the annular rib 31 via the connecting portion P1. ing. One end of the curved rib 33a is connected to the upper edge of the edge wall portion 22 via a connecting portion P12, and the other end of the curved rib 33a is connected to the annular rib 31 via a connecting portion P1. One end of the curved rib 33b is connected to the upper edge of the edge wall portion 22 via a connecting portion P12, and the other end of the curved rib 33b is connected to the annular rib 31 via a connecting portion P1. The two curved ribs 33a and 33b are provided between the connecting portion P1 and the connecting portion P12 so that the curved inner sides face each other. Furthermore, one end of the inclined rib 32b is connected to the upper end edge of the edge wall portion 22 via a connecting portion P13, and the other end of the inclined rib 32b is connected to the annular rib 31 via a connecting portion P1.

同様に、傾斜リブ３２ｃの一端が連結部分Ｐ１３を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｃの他端が上述した連結部分Ｐ３を介して環状リブ３１に連結されている。また、湾曲リブ３３ｃの一端が連結部分Ｐ１４を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｃの他端が連結部分Ｐ３を介して環状リブ３１に連結されている。また、湾曲リブ３３ｄの一端が連結部分Ｐ１４を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｄの他端が連結部分Ｐ３を介して環状リブ３１に連結されている。２本の湾曲リブ３３ｃ、３３ｄは、湾曲の内側が互いに対向する向きで連結部分Ｐ３と連結部分Ｐ１４の間に設けられている。さらに、傾斜リブ３２ｄの一端が連結部分Ｐ１５を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｄの他端が連結部分Ｐ３を介して環状リブ３１に連結されている。 Similarly, one end of the inclined rib 32c is connected to the upper edge portion of the edge wall portion 22 via the connecting portion P13, and the other end of the inclined rib 32c is connected to the annular rib 31 via the above-described connecting portion P3. . One end of the curved rib 33c is connected to the upper edge of the edge wall portion 22 via a connecting portion P14, and the other end of the curved rib 33c is connected to the annular rib 31 via a connecting portion P3. One end of the curved rib 33d is connected to the upper edge of the edge wall portion 22 via a connecting portion P14, and the other end of the curved rib 33d is connected to the annular rib 31 via a connecting portion P3. The two curved ribs 33c and 33d are provided between the connecting portion P3 and the connecting portion P14 so that the curved inner sides face each other. Further, one end of the inclined rib 32d is connected to the upper edge of the edge wall portion 22 via a connecting portion P15, and the other end of the inclined rib 32d is connected to the annular rib 31 via a connecting portion P3.

さらに、傾斜リブ３２ｅの一端が連結部分Ｐ１５を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｅの他端が上述した連結部分Ｐ５を介して環状リブ３１に連結されている。また、湾曲リブ３３ｅの一端が連結部分Ｐ１６を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｅの他端が連結部分Ｐ５を介して環状リブ３１に連結されている。また、湾曲リブ３３ｆの一端が連結部分Ｐ１６を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｆの他端が連結部分Ｐ５を介して環状リブ３１に連結されている。２本の湾曲リブ３３ｅ、３３ｆは、湾曲の内側が互いに対向する向きで連結部分Ｐ５と連結部分Ｐ１６の間に設けられている。さらに、傾斜リブ３２ｆの一端が連結部分Ｐ１７を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｆの他端が連結部分Ｐ５を介して環状リブ３１に連結されている。 Further, one end of the inclined rib 32e is connected to the upper edge of the edge wall portion 22 via the connecting portion P15, and the other end of the inclined rib 32e is connected to the annular rib 31 via the connecting portion P5. One end of the curved rib 33e is connected to the upper edge of the edge wall portion 22 via a connecting portion P16, and the other end of the curved rib 33e is connected to the annular rib 31 via a connecting portion P5. One end of the curved rib 33f is connected to the upper edge of the edge wall portion 22 via a connecting portion P16, and the other end of the curved rib 33f is connected to the annular rib 31 via a connecting portion P5. The two curved ribs 33e and 33f are provided between the connecting portion P5 and the connecting portion P16 so that the curved inner sides face each other. Furthermore, one end of the inclined rib 32f is connected to the upper edge of the edge wall portion 22 via a connecting portion P17, and the other end of the inclined rib 32f is connected to the annular rib 31 via a connecting portion P5.

また、傾斜リブ３２ｇの一端が連結部分Ｐ１７を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｇの他端が上述した連結部分Ｐ６を介して環状リブ３１に連結されている。また、湾曲リブ３３ｇの一端が連結部分Ｐ１８を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｇの他端が連結部分Ｐ６を介して環状リブ３１に連結されている。また、湾曲リブ３３ｈの一端が連結部分Ｐ１８を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｈの他端が連結部分Ｐ６を介して環状リブ３１に連結されている。２本の湾曲リブ３３ｇ、３３ｈは、湾曲の内側が互いに対向する向きで連結部分Ｐ６と連結部分Ｐ１８の間に設けられている。さらに、傾斜リブ３２ｈの一端が連結部分Ｐ１９を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｈの他端が連結部分Ｐ６を介して環状リブ３１に連結されている。 One end of the inclined rib 32g is connected to the upper edge of the edge wall portion 22 via the connecting portion P17, and the other end of the inclined rib 32g is connected to the annular rib 31 via the connecting portion P6. One end of the curved rib 33g is connected to the upper edge of the edge wall portion 22 via a connecting portion P18, and the other end of the curved rib 33g is connected to the annular rib 31 via a connecting portion P6. One end of the curved rib 33h is connected to the upper edge of the edge wall portion 22 via a connecting portion P18, and the other end of the curved rib 33h is connected to the annular rib 31 via a connecting portion P6. The two curved ribs 33g and 33h are provided between the connecting portion P6 and the connecting portion P18 so that the curved inner sides face each other. Furthermore, one end of the inclined rib 32h is connected to the upper edge of the edge wall portion 22 via a connecting portion P19, and the other end of the inclined rib 32h is connected to the annular rib 31 via a connecting portion P6.

また、傾斜リブ３２ｉの一端が連結部分Ｐ１９を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｉの他端が上述した連結部分Ｐ８を介して環状リブ３１に連結されている。また、湾曲リブ３３ｉの一端が連結部分Ｐ２０を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｉの他端が連結部分Ｐ８を介して環状リブ３１に連結されている。また、湾曲リブ３３ｊの一端が連結部分Ｐ２０を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｊの他端が連結部分Ｐ８を介して環状リブ３１に連結されている。２本の湾曲リブ３３ｉ、３３ｊは、湾曲の内側が互いに対向する向きで連結部分Ｐ８と連結部分Ｐ２０の間に設けられている。さらに、傾斜リブ３２ｊの一端が連結部分Ｐ２１を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｊの他端が連結部分Ｐ８を介して環状リブ３１に連結されている。 One end of the inclined rib 32i is connected to the upper edge of the edge wall portion 22 via the connecting portion P19, and the other end of the inclined rib 32i is connected to the annular rib 31 via the connecting portion P8. One end of the curved rib 33i is connected to the upper edge of the edge wall portion 22 via a connecting portion P20, and the other end of the curved rib 33i is connected to the annular rib 31 via a connecting portion P8. One end of the curved rib 33j is connected to the upper edge of the edge wall portion 22 via a connecting portion P20, and the other end of the curved rib 33j is connected to the annular rib 31 via a connecting portion P8. The two curved ribs 33i and 33j are provided between the connecting portion P8 and the connecting portion P20 so that the curved inner sides face each other. Furthermore, one end of the inclined rib 32j is connected to the upper end edge of the edge wall portion 22 via a connecting portion P21, and the other end of the inclined rib 32j is connected to the annular rib 31 via a connecting portion P8.

さらに、傾斜リブ３２ｋの一端が連結部分Ｐ２１を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｋの他端が上述した連結部分Ｐ１０を介して環状リブ３１に連結されている。また、湾曲リブ３３ｋの一端が連結部分Ｐ２２を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｋの他端が連結部分Ｐ１０を介して環状リブ３１に連結されている。また、湾曲リブ３３ｌの一端が連結部分Ｐ２２を介して縁壁部２２の上端縁部に連結され、湾曲リブ３３ｌの他端が連結部分Ｐ１０を介して環状リブ３１に連結されている。２本の湾曲リブ３３ｋ、３３ｌは、湾曲の内側が互いに対向する向きで連結部分Ｐ１０と連結部分Ｐ２２の間に設けられている。さらに、傾斜リブ３２ｌの一端が連結部分Ｐ１１を介して縁壁部２２の上端縁部に連結され、傾斜リブ３２ｌの他端が連結部分Ｐ１０を介して環状リブ３１に連結されている。 Furthermore, one end of the inclined rib 32k is connected to the upper edge of the edge wall portion 22 via the connecting portion P21, and the other end of the inclined rib 32k is connected to the annular rib 31 via the connecting portion P10. One end of the curved rib 33k is connected to the upper edge of the edge wall portion 22 via a connecting portion P22, and the other end of the curved rib 33k is connected to the annular rib 31 via a connecting portion P10. One end of the curved rib 33l is connected to the upper edge of the edge wall portion 22 via a connecting portion P22, and the other end of the curved rib 33l is connected to the annular rib 31 via a connecting portion P10. The two curved ribs 33k and 33l are provided between the connecting portion P10 and the connecting portion P22 so that the curved inner sides face each other. Furthermore, one end of the inclined rib 32l is connected to the upper edge of the edge wall portion 22 via a connecting portion P11, and the other end of the inclined rib 32l is connected to the annular rib 31 via a connecting portion P10.

なお、上述した環状リブ３１の８つの渦状リブ３１ｃ、３１ｄ、３１ｅ、３１ｆ、３１ｇ、３１ｈ、３１ｉ、３１ｊは、それぞれ、その先端が傾斜リブ３２ｂ、３２ｃ、３２ｄ、３２ｅ、３２ｈ、３２ｉ、３２ｊ、３２ｋの中間部分に連結されている。 The eight spiral ribs 31c, 31d, 31e, 31f, 31g, 31h, 31i, and 31j of the annular rib 31 described above have inclined ribs 32b, 32c, 32d, 32e, 32h, 32i, 32j, 32k middle portion.

渦状リブ３１ｃ、３１ｄ、３１ｅ、３１ｆ、３１ｇ、３１ｈ、３１ｉ、３１ｊの先端は、それぞれ、傾斜リブ３２ｂ、３２ｃ、３２ｄ、３２ｅ、３２ｈ、３２ｉ、３２ｊ、３２ｋの表面よりわずかに外方へ突出している。言い換えると、渦状リブ３１ｃ、３１ｄ、３１ｅ、３１ｆ、３１ｇ、３１ｈ、３１ｉ、３１ｊの先端側の表面は、傾斜リブ３２ｂ、３２ｃ、３２ｄ、３２ｅ、３２ｈ、３２ｉ、３２ｊ、３２ｋの表面と面一につながっていない。 The tips of the spiral ribs 31c, 31d, 31e, 31f, 31g, 31h, 31i and 31j project slightly outward from the surfaces of the inclined ribs 32b, 32c, 32d, 32e, 32h, 32i, 32j and 32k, respectively. there is In other words, the surfaces of the leading ends of the spiral ribs 31c, 31d, 31e, 31f, 31g, 31h, 31i, and 31j are flush with the surfaces of the inclined ribs 32b, 32c, 32d, 32e, 32h, 32i, 32j, and 32k. Not connected.

渦状リブ３１ｃの中間部分である連結部分Ｐ２と傾斜リブ３２ｂの中間部分をつなぐ渦状リブ３１ｃの先端側の一部分は、環状リブ３１を支える支えリブ３４ａとして機能する。渦状リブ３１ｄの中間部分である連結部分Ｐ２と傾斜リブ３２ｃの中間部分をつなぐ渦状リブ３１ｄの先端側の一部分は、環状リブ３１を支える支えリブ３４ｂとして機能する。渦状リブ３１ｅの中間部分である連結部分Ｐ４と傾斜リブ３２ｄの中間部分をつなぐ渦状リブ３１ｅの先端側の一部分は、環状リブ３１を支える支えリブ３４ｃとして機能する。渦状リブ３１ｆの中間部分である連結部分Ｐ４と傾斜リブ３２ｅの中間部分をつなぐ渦状リブ３１ｆの先端側の一部分は、環状リブ３１を支える支えリブ３４ｄとして機能する。 A portion of the leading end of the spiral rib 31c that connects the connecting portion P2, which is the middle portion of the spiral rib 31c, and the middle portion of the inclined rib 32b functions as a support rib 34a that supports the annular rib 31. As shown in FIG. A portion of the distal end side of the spiral rib 31d that connects the intermediate portion of the inclined rib 32c to the connecting portion P2, which is the intermediate portion of the spiral rib 31d, functions as a support rib 34b that supports the annular rib 31. As shown in FIG. A portion of the distal end side of the spiral rib 31e that connects the connecting portion P4, which is the middle portion of the spiral rib 31e, and the middle portion of the inclined rib 32d functions as a support rib 34c that supports the annular rib 31. As shown in FIG. A portion of the distal end side of the spiral rib 31f that connects the connecting portion P4, which is the middle portion of the spiral rib 31f, and the middle portion of the inclined rib 32e functions as a support rib 34d that supports the annular rib 31. As shown in FIG.

渦状リブ３１ｇの中間部分である連結部分Ｐ７と傾斜リブ３２ｈの中間部分をつなぐ渦状リブ３１ｇの先端側の一部分は、環状リブ３１を支える支えリブ３４ｅとして機能する。渦状リブ３１ｈの中間部分である連結部分Ｐ７と傾斜リブ３２ｉの中間部分をつなぐ渦状リブ３１ｈの先端側の一部分は、環状リブ３１を支える支えリブ３４ｆとして機能する。渦状リブ３１ｉの中間部分である連結部分Ｐ９と傾斜リブ３２ｊの中間部分をつなぐ渦状リブ３１ｉの先端側の一部分は、環状リブ３１を支える支えリブ３４ｇとして機能する。渦状リブ３１ｊの中間部分である連結部分Ｐ９と傾斜リブ３２ｋの中間部分をつなぐ渦状リブ３１ｊの先端側の一部分は、環状リブ３１を支える支えリブ３４ｈとして機能する。 A portion of the leading end of the spiral rib 31g that connects the connecting portion P7, which is the intermediate portion of the spiral rib 31g, and the intermediate portion of the inclined rib 32h functions as a support rib 34e that supports the annular rib 31. As shown in FIG. A portion of the distal end side of the spiral rib 31h that connects the connecting portion P7, which is the intermediate portion of the spiral rib 31h, and the intermediate portion of the inclined rib 32i functions as a support rib 34f that supports the annular rib 31. As shown in FIG. A portion of the distal end side of the spiral rib 31i that connects the connecting portion P9 that is the intermediate portion of the spiral rib 31i and the intermediate portion of the inclined rib 32j functions as a support rib 34g that supports the annular rib 31. As shown in FIG. A portion of the distal end side of the spiral rib 31j that connects the connecting portion P9, which is the intermediate portion of the spiral rib 31j, and the intermediate portion of the inclined rib 32k functions as a support rib 34h that supports the annular rib 31. As shown in FIG.

環状リブ３１と突起２４の間には、上述した湾曲リブ３３ａ～３３ｌより長い１２本の湾曲リブ３５ａ、３５ｂ、３５ｃ、３５ｄ、３５ｅ、３５ｆ、３５ｇ、３５ｈ、３５ｉ、３５ｊ、３５ｋ、３５ｌがかけ渡されている。１２本の湾曲リブ３５ａ～３５ｌは、蓋体４の周方向に沿ってその湾曲方向を交互に異ならせて配置されている。 Twelve curved ribs 35a, 35b, 35c, 35d, 35e, 35f, 35g, 35h, 35i, 35j, 35k, and 35l longer than the curved ribs 33a to 33l described above are hung between the annular rib 31 and the projection 24. passed. The twelve curved ribs 35a to 35l are arranged along the circumferential direction of the lid 4 so that their curved directions are alternately different.

具体的には、湾曲リブ３５ａの一端が上述した連結部分Ｐ１を介して環状リブ３１に連結され、湾曲リブ３５ａの他端が突起２４の外周面に連結されている。また、湾曲リブ３５ｂの一端が連結部分Ｐ１を介して環状リブ３１に連結され、湾曲リブ３５ｂの他端が突起２４の外周面に連結されている。２つの湾曲リブ３５ａ、３５ｂは、湾曲の内側が互いに対向する向きで配置されている。 Specifically, one end of the curved rib 35a is connected to the annular rib 31 via the connecting portion P1 described above, and the other end of the curved rib 35a is connected to the outer peripheral surface of the projection 24. As shown in FIG. One end of the curved rib 35b is connected to the annular rib 31 via the connecting portion P1, and the other end of the curved rib 35b is connected to the outer peripheral surface of the projection 24. As shown in FIG. The two curved ribs 35a, 35b are arranged such that the curved inner sides face each other.

同様に、湾曲リブ３５ｃの一端が上述した連結部分Ｐ３を介して環状リブ３１に連結され、湾曲リブ３５ｃの他端が突起２４の外周面に連結されている。また、湾曲リブ３５ｄの一端が連結部分Ｐ３を介して環状リブ３１に連結され、湾曲リブ３５ｄの他端が突起２４の外周面に連結されている。２つの湾曲リブ３５ｃ、３５ｄは、湾曲の内側が互いに対向する向きで配置されている。 Similarly, one end of the curved rib 35c is connected to the annular rib 31 via the connecting portion P3 described above, and the other end of the curved rib 35c is connected to the outer peripheral surface of the projection 24. As shown in FIG. One end of the curved rib 35d is connected to the annular rib 31 via the connecting portion P3, and the other end of the curved rib 35d is connected to the outer peripheral surface of the projection 24. As shown in FIG. The two curved ribs 35c and 35d are arranged such that the curved inner sides face each other.

さらに、湾曲リブ３５ｅの一端が上述した連結部分Ｐ５を介して環状リブ３１に連結され、湾曲リブ３５ｅの他端が突起２４の外周面に連結されている。また、湾曲リブ３５ｆの一端が連結部分Ｐ５を介して環状リブ３１に連結され、湾曲リブ３５ｆの他端が突起２４の外周面に連結されている。２つの湾曲リブ３５ｅ、３５ｆは、湾曲の内側が互いに対向する向きで配置されている。 Furthermore, one end of the curved rib 35 e is connected to the annular rib 31 via the connecting portion P<b>5 described above, and the other end of the curved rib 35 e is connected to the outer peripheral surface of the projection 24 . Also, one end of the curved rib 35f is connected to the annular rib 31 via the connecting portion P5, and the other end of the curved rib 35f is connected to the outer peripheral surface of the projection 24. As shown in FIG. The two curved ribs 35e and 35f are arranged such that the curved inner sides face each other.

また、湾曲リブ３５ｇの一端が上述した連結部分Ｐ６を介して環状リブ３１に連結され、湾曲リブ３５ｇの他端が突起２４の外周面に連結されている。また、湾曲リブ３５ｈの一端が連結部分Ｐ６を介して環状リブ３１に連結され、湾曲リブ３５ｈの他端が突起２４の外周面に連結されている。２つの湾曲リブ３５ｇ、３５ｈは、湾曲の内側が互いに対向する向きで配置されている。 Also, one end of the curved rib 35g is connected to the annular rib 31 via the connecting portion P6 described above, and the other end of the curved rib 35g is connected to the outer peripheral surface of the projection 24. As shown in FIG. Also, one end of the curved rib 35h is connected to the annular rib 31 via the connecting portion P6, and the other end of the curved rib 35h is connected to the outer peripheral surface of the projection 24. As shown in FIG. The two curved ribs 35g and 35h are arranged such that the curved inner sides face each other.

また、湾曲リブ３５ｉの一端が上述した連結部分Ｐ８を介して環状リブ３１に連結され、湾曲リブ３５ｉの他端が突起２４の外周面に連結されている。また、湾曲リブ３５ｊの一端が連結部分Ｐ８を介して環状リブ３１に連結され、湾曲リブ３５ｊの他端が突起２４の外周面に連結されている。２つの湾曲リブ３５ｉ、３５ｊは、湾曲の内側が互いに対向する向きで配置されている。 Also, one end of the curved rib 35i is connected to the annular rib 31 via the connecting portion P8 described above, and the other end of the curved rib 35i is connected to the outer peripheral surface of the projection 24. As shown in FIG. Also, one end of the curved rib 35j is connected to the annular rib 31 via the connecting portion P8, and the other end of the curved rib 35j is connected to the outer peripheral surface of the projection 24. As shown in FIG. The two curved ribs 35i and 35j are arranged such that the curved inner sides face each other.

また、湾曲リブ３５ｋの一端が上述した連結部分Ｐ１０を介して環状リブ３１に連結され、湾曲リブ３５ｋの他端が突起２４の外周面に連結されている。また、湾曲リブ３５ｌの一端が連結部分Ｐ１０を介して環状リブ３１に連結され、湾曲リブ３５ｌの他端が突起２４の外周面に連結されている。２つの湾曲リブ３５ｋ、３５ｌは、湾曲の内側が互いに対向する向きで配置されている。 Also, one end of the curved rib 35 k is connected to the annular rib 31 via the connecting portion P<b>10 described above, and the other end of the curved rib 35 k is connected to the outer peripheral surface of the protrusion 24 . Also, one end of the curved rib 35l is connected to the annular rib 31 via the connecting portion P10, and the other end of the curved rib 35l is connected to the outer peripheral surface of the projection 24. As shown in FIG. The two curved ribs 35k and 35l are arranged such that the curved inner sides face each other.

蓋体４は、上述した複数本のリブ３１ａ～３１ｊ、３２ａ～３２ｌ、３３ａ～３３ｌ、３４ａ～３４ｈ、３５ａ～３５ｌの形状およびレイアウトに依存する形状の複数の揮散口２１ａ～２１ｎ、２３ａ～２３ｆ、２５ａ～２５ｌを有する。 The lid 4 has a plurality of volatilization ports 21a to 21n and 23a to 23f whose shapes depend on the shape and layout of the plurality of ribs 31a to 31j, 32a to 32l, 33a to 33l, 34a to 34h, and 35a to 35l. , 25a-25l.

揮散口２１ａは、円弧状リブ３１ａ、傾斜リブ３２ａ、および傾斜リブ３２ｌにより囲まれた略三角形の領域にある開口部であり、揮散口２１ｂも、円弧状リブ３１ｂ、傾斜リブ３２ｆ、および傾斜リブ３２ｇにより囲まれた略三角形の領域にある開口部である。 Volatilization port 21a is an opening in a substantially triangular region surrounded by arc-shaped rib 31a, slanted rib 32a, and slanted rib 32l. 32g is an opening in the generally triangular area bounded by 32g.

揮散口２１ｃは、傾斜リブ３２ｂと渦状リブ３１ｃにより囲まれた領域にある開口部であり、揮散口２１ｄは、傾斜リブ３２ｃと渦状リブ３１ｄにより囲まれた領域にある開口部である。揮散口２１ｅは、傾斜リブ３２ｂ、傾斜リブ３２ｃ、渦状リブ３１ｃ、および渦状リブ３１ｄにより囲まれた領域にある開口部である。 Volatilization port 21c is an opening in a region surrounded by inclined rib 32b and spiral rib 31c, and volatilization port 21d is an opening in a region surrounded by inclined rib 32c and spiral rib 31d. Volatilization port 21e is an opening in a region surrounded by inclined rib 32b, inclined rib 32c, spiral rib 31c, and spiral rib 31d.

揮散口２１ｆは、傾斜リブ３２ｄと渦状リブ３１ｅにより囲まれた領域にある開口部であり、揮散口２１ｇは、傾斜リブ３２ｅと渦状リブ３１ｆにより囲まれた領域にある開口部である。揮散口２１ｈは、傾斜リブ３２ｄ、傾斜リブ３２ｅ、渦状リブ３１ｅ、および渦状リブ３１ｆにより囲まれた領域にある開口部である。 21 f of volatilization openings are openings in the area|region enclosed by the inclination rib 32d and the spiral rib 31e, and 21 g of volatilization openings are opening parts in the area|region enclosed by the inclination rib 32e and the spiral rib 31f. 21 h of volatilization openings are openings in the area|region enclosed by the inclination rib 32d, the inclination rib 32e, the spiral rib 31e, and the spiral rib 31f.

揮散口２１ｉは、傾斜リブ３２ｈと渦状リブ３１ｇにより囲まれた領域にある開口部であり、揮散口２１ｊは、傾斜リブ３２ｉと渦状リブ３１ｈにより囲まれた領域にある開口部である。揮散口２１ｋは、傾斜リブ３２ｈ、傾斜リブ３２ｉ、渦状リブ３１ｇ、および渦状リブ３１ｈにより囲まれた領域にある開口部である。 Volatilization port 21i is an opening in a region surrounded by inclined rib 32h and spiral rib 31g, and volatilization port 21j is an opening in a region surrounded by inclined rib 32i and spiral rib 31h. Volatilization port 21k is an opening in a region surrounded by inclined rib 32h, inclined rib 32i, spiral rib 31g, and spiral rib 31h.

揮散口２１ｌは、傾斜リブ３２ｊと渦状リブ３１ｉにより囲まれた領域にある開口部であり、揮散口２１ｍは、傾斜リブ３２ｋと渦状リブ３１ｊにより囲まれた領域にある開口部である。揮散口２１ｎは、傾斜リブ３２ｊ、傾斜リブ３２ｋ、渦状リブ３１ｉ、および渦状リブ３１ｊにより囲まれた領域にある開口部である。 21 l of volatilization openings are openings in the area|region enclosed by the inclination rib 32j and the spiral rib 31i, and 21 m of volatilization openings are opening parts in the area|region enclosed by the inclination rib 32k and the spiral rib 31j. 21 n of volatilization ports are openings in the area|region enclosed by the inclination rib 32j, the inclination rib 32k, the spiral rib 31i, and the spiral rib 31j.

また、揮散口２３ａは、湾曲リブ３３ａと湾曲リブ３３ｂにより囲まれた領域にある開口部であり、揮散口２３ｂは、湾曲リブ３３ｃと湾曲リブ３３ｄにより囲まれた領域にある開口部であり、揮散口２３ｃは、湾曲リブ３３ｅと湾曲リブ３３ｆにより囲まれた領域にある開口部であり、揮散口２３ｄは、湾曲リブ３３ｇと湾曲リブ３３ｈにより囲まれた領域にある開口部であり、揮散口２３ｅは、湾曲リブ３３ｉと湾曲リブ３３ｊにより囲まれた領域にある開口部であり、揮散口２３ｆは、湾曲リブ３３ｋと湾曲リブ３３ｌにより囲まれた領域にある開口部である。 In addition, the volatilization port 23a is an opening in a region surrounded by the curved ribs 33a and 33b, and the volatilization port 23b is an opening in a region surrounded by the curved ribs 33c and 33d. The volatilization port 23c is an opening in a region surrounded by the curved ribs 33e and the curved ribs 33f, and the volatilization port 23d is an opening in a region surrounded by the curved ribs 33g and the curved ribs 33h. 23e is an opening in the area surrounded by the curved ribs 33i and 33j, and the volatilization port 23f is an opening in the area surrounded by the curved ribs 33k and 33l.

円弧状リブ３１ａ、湾曲リブ３５ａ、湾曲リブ３５ｌ、および突起２４により囲まれた領域は、閉塞板部４１ａにより閉塞されており、この領域は揮散口として機能しない。また、円弧状リブ３１ｂ、湾曲リブ３５ｆ、湾曲リブ３５ｇ、および突起２４により囲まれた領域は、閉塞板部４１ｂにより閉塞されており、この領域も揮散口として機能しない。 A region surrounded by the arcuate rib 31a, the curved rib 35a, the curved rib 35l, and the projection 24 is blocked by the blocking plate portion 41a, and does not function as a volatilization port. A region surrounded by the arcuate rib 31b, the curved rib 35f, the curved rib 35g, and the projection 24 is blocked by the blocking plate portion 41b, and this region also does not function as a volatilization port.

湾曲リブ３５ｃ、湾曲リブ３５ｄ、および突起２４により囲まれた領域は、閉塞板部４２ａにより閉塞されており、この領域は揮散口として機能しない。また、湾曲リブ３５ｉ、湾曲リブ３５ｊ、および突起２４により囲まれた領域も、閉塞板部４２ｂにより閉塞されており、この領域は揮散口として機能しない。 A region surrounded by curved ribs 35c, curved ribs 35d, and projections 24 is blocked by blocking plate portion 42a, and does not function as a volatilization port. In addition, the region surrounded by the curved ribs 35i, 35j, and projections 24 is also blocked by the blocking plate portion 42b, and does not function as a volatilization port.

揮散口２６ａは、湾曲リブ３５ａ、湾曲リブ３５ｂ、および突起２４により囲まれた領域にある開口部である。揮散口２６ｂは、湾曲リブ３５ｅ、湾曲リブ３５ｆ、および突起２４により囲まれた領域にある開口部である。揮散口２６ｃは、湾曲リブ３５ｇ、湾曲リブ３５ｈ、および突起２４により囲まれた領域にある開口部である。揮散口２６ｄは、湾曲リブ３５ｋ、湾曲リブ３５ｌ、および突起２４により囲まれた領域にある開口部である。 Volatilization port 26 a is an opening in a region surrounded by curved ribs 35 a , curved ribs 35 b and projections 24 . Volatilization port 26b is an opening in a region surrounded by curved ribs 35e, curved ribs 35f, and projections 24. As shown in FIG. Volatilization port 26c is an opening in a region surrounded by curved rib 35g, curved rib 35h, and protrusion 24. As shown in FIG. 26 d of volatilization openings are openings in the area|region enclosed by the curved rib 35k, the curved rib 35l, and the processus|protrusion 24. As shown in FIG.

揮散口２７ａは、湾曲リブ３５ｂ、湾曲リブ３５ｃ、渦状リブ３１ｃ、渦状リブ３１ｄ、および突起２４により囲まれた領域にある開口部である。揮散口２７ｂは、湾曲リブ３５ｄ、湾曲リブ３５ｅ、渦状リブ３１ｅ、渦状リブ３１ｆ、および突起２４により囲まれた領域にある開口部である。揮散口２７ｃは、湾曲リブ３５ｈ、湾曲リブ３５ｉ、渦状リブ３１ｇ、渦状リブ３１ｈ、および突起２４により囲まれた領域にある開口部である。揮散口２７ｄは、湾曲リブ３５ｊ、湾曲リブ３５ｋ、渦状リブ３１ｉ、渦状リブ３１ｊ、および突起２４により囲まれた領域にある開口部である。 Volatilization port 27 a is an opening in a region surrounded by curved rib 35 b , curved rib 35 c , spiral rib 31 c , spiral rib 31 d and projection 24 . Volatilization port 27b is an opening in a region surrounded by curved rib 35d, curved rib 35e, spiral rib 31e, spiral rib 31f, and protrusion 24. Volatilization port 27c is an opening in a region surrounded by curved rib 35h, curved rib 35i, spiral rib 31g, spiral rib 31h, and projection 24. 27 d of volatilization openings are openings in the area|region enclosed by the curved rib 35j, the curved rib 35k, the spiral rib 31i, the spiral rib 31j, and the protrusion 24. As shown in FIG.

以下、蓋体４の機能についてさらに説明する。
蓋体４の複数本のリブ３１ａ～３１ｊ、３２ａ～３２ｌ、３３ａ～３３ｌ、３５ａ～３５ｌは、それぞれ所定の曲率で湾曲した架空の曲面に沿った表面を有する。ここで言う各リブの表面とは、容器本体２から離間した蓋体４のドーム状に膨出した上面側（図５で紙面手前側）の面である。
The function of the lid 4 will be further described below.
A plurality of ribs 31a to 31j, 32a to 32l, 33a to 33l, and 35a to 35l of the lid 4 each have a surface along an imaginary curved surface curved with a predetermined curvature. The surface of each rib referred to here is the dome -shaped bulging upper surface side (the front side of the paper in FIG. 5) of the lid 4 spaced apart from the container body 2 .

例えば、環状リブ３１と突起２４の間に設けた１２本の湾曲リブ３５ａ～３５ｌの表面は、当該蓋体４の上に別の揮散装置１０’を重ねたときに、この揮散装置１０’の容器本体２の底壁１２に設けた凹部１５の表面に面で接触する曲率を有する。つまり、これら１２本の湾曲リブ３５ａ～３５ｌは、凹部１５と同じ曲率の表面を有する。 For example, the surface of the twelve curved ribs 35a to 35l provided between the annular rib 31 and the projection 24 is the surface of the volatilization device 10' when another volatilization device 10' is stacked on the lid 4. It has such a curvature as to come into surface contact with the surface of the recess 15 provided in the bottom wall 12 of the container body 2 . In other words, these twelve curved ribs 35a to 35l have surfaces with the same curvature as the concave portion 15. As shown in FIG.

これに対し、環状リブ３１と縁壁部２２の間に設けた１２本の湾曲リブ３３ａ～３３ｌの表面も、所定の曲率で湾曲した架空の曲面に沿った曲面である。湾曲リブ３３ａ～３３ｌの表面の曲率は、湾曲リブ３５ａ～３５ｌの表面の曲率と同じであってもよく、異なる曲率であってもよい。 On the other hand, the surfaces of the 12 curved ribs 33a to 33l provided between the annular rib 31 and the edge wall portion 22 are also curved surfaces along an imaginary curved surface curved with a predetermined curvature. The curvature of the surfaces of the curved ribs 33a-33l may be the same as or different from the curvature of the surfaces of the curved ribs 35a-35l.

しかし、湾曲リブ３３ａ～３３ｌの表面を含む架空の曲面と湾曲リブ３５ａ～３５ｌの表面を含む架空の曲面は同一のつながった曲面を形成していない。言い換えると、湾曲リブ３３ａ～３３ｌの表面を含む架空の曲面と湾曲リブ３５ａ～３５ｌの表面を含む架空の曲面の間には円環状の架空の変曲部分がある。 However, the fictitious curved surface including the surfaces of the curved ribs 33a to 33l and the fictitious curved surface including the surfaces of the curved ribs 35a to 35l do not form the same connected curved surface. In other words, there is an annular fictitious inflection portion between the fictitious curved surface including the surfaces of the curved ribs 33a-33l and the fictitious curved surface including the surfaces of the curved ribs 35a-35l.

湾曲リブ３３ａ～３３ｌの表面を含む架空の曲面と湾曲リブ３５ａ～３５ｌの表面を含む架空の曲面の間の変曲部分は、環状リブ３１の上にある。また、湾曲リブ３３ａ～３３ｌの表面を含む架空の曲面と湾曲リブ３５ａ～３５ｌの表面を含む架空の曲面の間の変曲部分は、蓋体４の内側に向けてわずかに凹んでいる。 An inflection portion between an imaginary curved surface including the surfaces of curved ribs 33 a - 33 l and an imaginary curved surface including the surfaces of curved ribs 35 a - 35 l is above annular rib 31 . Further, the inflection portion between the imaginary curved surface including the surfaces of the curved ribs 33a to 33l and the imaginary curved surface including the surfaces of the curved ribs 35a to 35l is slightly recessed toward the inside of the lid 4.

このように、蓋体４の表面の円環状の変曲部分が凹んでいることにより、当該蓋体４の上に別の揮散装置１０’を重ねたときに、揮散装置１０’の容器本体２の底壁１２に設けた凹部１５の縁１５ａが当該蓋体４の変曲部分にちょうど引っ掛かる。つまり、蓋体４に上述した変曲部分を設けたことで、当該蓋体４の上に重ねた揮散装置１０’を安定して支持することができる。 In this way, since the annular inflection portion of the surface of the lid 4 is recessed, when another volatilization device 10' is stacked on the lid 4, the container body 2 of the volatilization device 10' The edge 15a of the recessed portion 15 provided in the bottom wall 12 of the lid 4 is just caught on the curved portion of the lid 4.例文帳に追加In other words, by providing the lid 4 with the above-described inflection portion, the volatilization device 10 ′ placed on the lid 4 can be stably supported.

なお、図６に示すように、揮散装置１０の上に別の揮散装置１０’を積み重ねると、上側の揮散装置１０’の容器本体２の底壁１２に設けた凹部１５に下側の揮散装置１０の蓋体４の一部（環状リブ３１、湾曲リブ３５ａ～３５ｌ）が接触する。このとき、同時に、上側の揮散装置１０’の容器本体２の凹部１５に設けた凹み１６内に下方の揮散装置１０の蓋体４の突起２４が嵌る。この状態で、上側の揮散装置１０’の容器本体２の凹部１５の縁１５ａが下側の揮散装置１０の蓋体４の環状リブ３１に当接する。 In addition, as shown in FIG. 6, when another volatilization device 10' is stacked on the volatilization device 10, the lower volatilization device A part of the lid body 4 of 10 (annular rib 31, curved ribs 35a to 35l) are in contact with each other. At this time, at the same time, the projection 24 of the lid 4 of the lower volatilization device 10 fits into the recess 16 provided in the recess 15 of the container body 2 of the upper volatilization device 10'. In this state, the edge 15a of the concave portion 15 of the container body 2 of the volatilization device 10' on the upper side contacts the annular rib 31 of the lid 4 of the volatilization device 10 on the lower side.

言い換えると、環状リブ３１は、２つの揮散装置１０、１０’を上下に重ねた状態で、上方の揮散装置１０’の底壁１２の凹部１５の縁１５ａが下方の揮散装置１０の蓋体４の環状リブ３１に重なる位置に設けられている。さらに言い換えると、容器本体２の底壁１２に設けた凹部１５の直径は、蓋体４の環状リブ３１の直径と略同じであり、凹部１５は蓋体４を全体的に覆う大きさではなく部分的に覆う大きさを有する。 In other words, the annular rib 31 is formed such that the edge 15a of the recess 15 of the bottom wall 12 of the upper volatilization device 10' is aligned with the lid 4 of the lower volatilization device 10 when the two volatilization devices 10 and 10' are vertically stacked. is provided at a position overlapping the annular rib 31 of the . In other words, the diameter of the recess 15 provided in the bottom wall 12 of the container body 2 is substantially the same as the diameter of the annular rib 31 of the lid 4, and the recess 15 is not large enough to cover the lid 4 entirely. It has a size that partially covers.

本実施形態では、環状リブ３１を蓋体４の膨出方向（図示上下方向）の略中間に設けた。このため、図６に示すように２つの揮散装置１０、１０’を上下に重ねた状態で、上方の揮散装置１０’の容器本体２の底壁１２が下方の揮散装置１０の蓋体４の膨出方向の略中間に位置し、下方の揮散装置１０の蓋体４の一部（図示下側の約半分）が外部から目視可能となり、複数の揮散装置１０を積み重ねた際の美観を向上させることができる。 In this embodiment, the annular rib 31 is provided substantially in the middle of the cover 4 in the direction of expansion (the vertical direction in the drawing). For this reason, as shown in FIG. 6, when the two volatilization devices 10 and 10 ′ are stacked vertically, the bottom wall 12 of the container body 2 of the upper volatilization device 10 ′ is placed on the lid 4 of the lower volatilization device 10. Located approximately in the middle of the bulging direction, part of the lid 4 of the lower volatilization device 10 (about half of the lower side in the figure) is visible from the outside, improving the appearance when multiple volatilization devices 10 are stacked. can be made

また、蓋体４は、所定の機械強度を有する。上記構造の揮散装置１０によると、容器本体２の開口部１３に蓋体４を装着する際に、蓋体４に対して容器本体２に向かう方向（図示下方）の押圧力が作用する。また、揮散装置１０の上に別の揮散装置１０’を重ねて載置すると、蓋体４に対して容器本体２に向かう方向の押圧力が作用する。このため、蓋体４には、特に、上下方向の押圧力に対する十分な機械強度が必要となる。 Moreover, the lid body 4 has a predetermined mechanical strength. According to the volatilization device 10 having the above structure, when the lid 4 is attached to the opening 13 of the container body 2 , a pressing force in the direction toward the container body 2 (downward in the figure) acts on the lid 4 . Further, when another volatilization device 10 ′ is placed on top of the volatilization device 10 , a pressing force in the direction toward the container body 2 acts on the lid 4 . For this reason, the lid body 4 particularly needs to have sufficient mechanical strength against the pressing force in the vertical direction.

蓋体４の環状リブ３１は、このような押圧力を比較的多く受ける位置に配置されている。また、環状リブ３１と縁壁部２２の間には、複数本の傾斜リブ３２ａ～３２ｌ、および複数本の湾曲リブ３３ａ～３３ｌが配置されているとともに、複数の支えリブ３４ａ～３４ｈが配置されている。このため、環状リブ３１が受けた押圧力を縁壁部２２との間に配置した複数本のリブ３２ａ～３２ｌ、３３ａ～３３ｌ、３４ａ～３４ｈにより受けて荷重を支えることができ、蓋体４に対して十分な機械強度を付与することができる。 The annular rib 31 of the lid 4 is arranged at a position where it receives a relatively large amount of such pressing force. Between the annular rib 31 and the edge wall portion 22, a plurality of inclined ribs 32a-32l, a plurality of curved ribs 33a-33l, and a plurality of support ribs 34a-34h are arranged. ing. Therefore, the pressing force received by the annular rib 31 can be received by the plurality of ribs 32a to 32l, 33a to 33l, and 34a to 34h arranged between the edge wall portion 22 and the load. Sufficient mechanical strength can be imparted to

なお、本実施形態では、環状リブ３１に沿って複数の支えリブ３４ａ～３４ｈを等間隔で設けておらず、円弧状リブ３１ａ、傾斜リブ３２ａ、および傾斜リブ３２ｌにより囲まれた領域、および円弧状リブ３１ｂ、傾斜リブ３２ｆ、および傾斜リブ３２ｇにより囲まれた領域には支えリブが無い。代わりに、これらの領域には、円弧状リブ３１ａ、３１ｂの強度を高めるため、閉塞板部４１ａ、４１ｂを設けた。これにより、蓋体４の周方向における機械強度のばらつきを抑制している。 In this embodiment, the plurality of supporting ribs 34a to 34h are not provided at regular intervals along the annular rib 31, and the area surrounded by the arcuate rib 31a, the inclined rib 32a, and the inclined rib 32l and the circular The area surrounded by arcuate rib 31b, slanted rib 32f, and slanted rib 32g has no support ribs. Instead, these regions are provided with closing plate portions 41a and 41b in order to increase the strength of the arcuate ribs 31a and 31b. This suppresses variations in the mechanical strength of the lid 4 in the circumferential direction.

つまり、本実施形態によると、蓋体４の模様に相当するリブ形状を比較的自由に設計することができ、その上、十分な機械強度を付与することもでき、複数の揮散装置１０の積み重ねに適した構造を提供することができる。また、揮散装置１０による薬剤の揮散量を決める揮散口の開口面積に関係する構成として、複数枚の閉塞部材４１ａ、４１ｂ、４２ａ、４２ｂを有するが、これらの閉塞部材４１ａ、４１ｂ、４２ａ、４２ｂも、蓋体４の強度バランスを考慮した位置に自由に配置することができ、設計の自由度が高い。 That is, according to the present embodiment, the rib shape corresponding to the pattern of the lid 4 can be designed relatively freely, and sufficient mechanical strength can be imparted. can provide a structure suitable for In addition, a plurality of blocking members 41a, 41b, 42a, and 42b are provided as a configuration related to the opening area of the volatilization port that determines the volatilization amount of the chemical by the volatilization device 10. These blocking members 41a, 41b, 42a, and 42b can be freely arranged in a position considering the strength balance of the lid body 4, and the degree of freedom in design is high.

以上、実施形態に基づいて本発明を説明したが、本発明は、上述した実施形態に限定されるものではなく、本発明の要旨の範囲内で種々の変形や応用が可能なことは勿論である。 Although the present invention has been described above based on the embodiments, the present invention is not limited to the above-described embodiments, and of course various modifications and applications are possible within the scope of the present invention. be.

例えば、上述した実施形態では、２つの揮散装置１０、１０’を上下に重ねた場合について説明したが、３つ以上の揮散装置１０を重ねることもできる。
以下、本願の出願当初の特許請求の範囲に記載された発明を付記する。
［１］
複数の揮散口を有してドーム状に膨出した蓋体と、
前記蓋体を装着する開口部および底部を有し、前記底部の下面に前記蓋体のドーム形状に合った形状の凹部を有し、薬剤を収容した容器本体と、
を有する揮散装置。
［２］
前記蓋体が頂部に突起を有し、
前記凹部が前記突起を受け入れる凹みを有する、
［１］の揮散装置。
［３］
前記蓋体は、前記複数の揮散口を区画する複数のリブを有し、
前記複数のリブが、別の揮散装置を前記蓋体の上に重ねた状態で前記別の揮散装置の容器本体の凹部の縁に当接する環状のリブを含む、
［１］または［２］の揮散装置。
［４］
前記環状のリブは、前記蓋体の膨出方向の略中間にある、
［３］の揮散装置。
［５］
前記複数のリブは、前記環状のリブを支える支えリブを含む、
［４］の揮散装置。
［６］
前記蓋体は、少なくとも１つの前記揮散口を塞ぐ閉塞板部を有する、
［１］の揮散装置。 For example, in the above-described embodiment, the two volatilization devices 10 and 10' are vertically stacked, but three or more volatilization devices 10 can be stacked.
The invention described in the scope of claims at the time of filing of the present application will be additionally described below.
[1]
A dome-shaped lid having a plurality of volatilization ports;
a container body having an opening and a bottom for attaching the lid, having a concave portion having a shape matching the dome shape of the lid on the lower surface of the bottom, and containing a drug;
volatilization device.
[2]
The lid has a protrusion on the top,
said recess having a recess for receiving said projection;
The volatilization device of [1].
[3]
The lid has a plurality of ribs that partition the plurality of volatilization ports,
The plurality of ribs includes an annular rib that contacts the edge of the recess of the container body of the another volatilization device with the other volatilization device superimposed on the lid,
The volatilization device of [1] or [2].
[4]
The annular rib is located substantially in the middle of the lid body in the bulging direction,
The volatilization device of [3].
[5]
The plurality of ribs includes a support rib that supports the annular rib,
The volatilization device of [4].
[6]
The lid has a closing plate portion that closes at least one of the volatilization ports,
The volatilization device of [1].

２…容器本体、４…蓋体、１０、１０’…揮散装置、１１…周壁、１２…底壁、１３…開口部、１４…段部、１４ａ…突条部、１５…凹部、１６…凹み、２１ａ、２１ｂ、２１ｃ、２１ｄ、２１ｅ、２１ｆ、２１ｇ、２１ｈ、２１ｉ、２１ｊ、２１ｋ、２１ｌ、２１ｍ、２１ｎ、２３ａ、２３ｂ、２３ｃ、２３ｄ、２３ｅ、２３ｆ、２５ａ、２５ｂ、２５ｃ、２５ｄ、２５ｅ、２５ｆ、２５ｇ、２５ｈ、２５ｉ、２５ｊ、２５ｋ、２５ｌ、２６ａ、２６ｂ、２６ｃ、２６ｄ、２７ａ、２７ｂ、２７ｃ、２７ｄ…揮散口、２２…縁壁部、２２ａ…係合爪、２４…突起、３１…環状リブ、３１ａ、３１ｂ…円弧状リブ、３１ｃ、３１ｄ、３１ｅ、３１ｆ、３１ｇ、３１ｈ、３１ｉ、３１ｊ…渦状リブ、３２ａ、３２ｂ、３２ｃ、３２ｄ、３２ｅ、３２ｆ、３２ｇ、３２ｈ、３２ｉ、３２ｊ、３２ｋ、３２ｌ…傾斜リブ、３３ａ、３３ｂ、３３ｃ、３３ｄ、３３ｅ、３３ｆ、３３ｇ、３３ｈ、３３ｉ、３３ｊ、３３ｋ、３３ｌ…湾曲リブ、３４ａ、３４ｂ、３４ｃ、３４ｄ、３４ｅ、３４ｆ、３４ｇ、３４ｈ…支えリブ、３５ａ、３５ｂ、３５ｃ、３５ｄ、３５ｅ、３５ｆ、３５ｇ、３５ｈ、３５ｉ、３５ｊ、３５ｋ、３５ｌ…湾曲リブ。 2 Container body 4 Lid 10, 10′ Volatilization device 11 Peripheral wall 12 Bottom wall 13 Opening 14 Step 14a Ridge 15 Recess 16 Recess , 21a, 21b, 21c, 21d, 21e, 21f, 21g, 21h, 21i, 21j, 21k, 21l, 21m, 21n, 23a, 23b, 23c, 23d, 23e, 23f, 25a, 25b, 25c, 25d, 25e , 25f, 25g, 25h, 25i, 25j, 25k, 25l, 26a, 26b, 26c, 26d, 27a, 27b, 27c, 27d... volatilization port, 22... edge wall part, 22a... engaging claw, 24... projection, 31... Annular rib 31a, 31b... Circular rib 31c, 31d, 31e, 31f, 31g, 31h, 31i, 31j... Spiral rib 32a, 32b, 32c, 32d, 32e, 32f, 32g, 32h, 32i, 32j, 32k, 32l... inclined ribs 33a, 33b, 33c, 33d, 33e, 33f, 33g, 33h, 33i, 33j, 33k, 33l... curved ribs 34a, 34b, 34c, 34d, 34e, 34f, 34g, 34h... supporting ribs, 35a, 35b, 35c, 35d, 35e, 35f, 35g, 35h, 35i, 35j, 35k, 35l... curved ribs.

Claims

A lid body having a plurality of volatilization ports and a dome-shaped surface shape ,
a container body having an opening for mounting the lid and a bottom, having a concave portion having a shape matching the surface shape of the lid on the lower surface of the bottom, and containing a medicine;
volatilization device.

The lid has a protrusion on the top,
The recess has a recess for fitting the projection,
The volatilization device according to claim 1.

The lid has a plurality of ribs that partition the plurality of volatilization ports,
The plurality of ribs includes an annular rib that contacts the edge of the recess of the container body of the another volatilization device with the other volatilization device superimposed on the lid,
The volatilization device according to claim 1 or 2.

The annular rib is located in the middle of the lid body in the bulging direction,
The volatilization device according to claim 3.

The plurality of ribs includes a support rib that supports the annular rib,
The volatilization device according to claim 4.

The lid has a closing plate portion that closes at least one of the volatilization ports,
The volatilization device according to claim 1.