JP2020059528A - Liquid container - Google Patents
Liquid container Download PDFInfo
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- JP2020059528A JP2020059528A JP2018192016A JP2018192016A JP2020059528A JP 2020059528 A JP2020059528 A JP 2020059528A JP 2018192016 A JP2018192016 A JP 2018192016A JP 2018192016 A JP2018192016 A JP 2018192016A JP 2020059528 A JP2020059528 A JP 2020059528A
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- container body
- wall
- container
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- 239000007788 liquid Substances 0.000 title claims abstract description 31
- 230000002093 peripheral effect Effects 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims 1
- 230000006837 decompression Effects 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 12
- 229940079593 drug Drugs 0.000 description 9
- 125000003118 aryl group Chemical group 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000000071 blow moulding Methods 0.000 description 2
- 239000002781 deodorant agent Substances 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
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- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
本発明は、例えば、芳香剤などの液体を収容した液体容器に関する。 The present invention relates to a liquid container containing a liquid such as a fragrance.
従来、芳香剤などの揮発性を有する液体を収容する液体容器が知られている。この種の液体容器として、いわゆるＰＥＴ（ポリエチレンテフタレート）ボトルが広く用いられている。ＰＥＴにより形成した容器に芳香剤などの薬剤を収容し、密封状態で長時間が経過すると、薬剤と空気の反応が起こり、容器内圧が減少し、容器に凹みを生じる場合がある。 Conventionally, a liquid container that stores a volatile liquid such as an aromatic is known. As this type of liquid container, a so-called PET (polyethylene terephthalate) bottle is widely used. When a drug such as an aromatic agent is contained in a container formed of PET and a long time is passed in a sealed state, a reaction between the drug and air occurs, the internal pressure of the container decreases, and a dent may occur in the container.
このような経時的な凹みを目立たなくするため、容器の主面（正面および背面）の剛性を高めるとともにわずかに膨出させ、且つ容器の側面の剛性を低くして側面を積極的に変形させるようにした容器が知られている。 In order to make such a dent with time less noticeable, the rigidity of the main surface (front surface and back surface) of the container is increased and the container is slightly bulged, and the rigidity of the side surface of the container is reduced to positively deform the side surface. Such containers are known.
しかし、上述した従来の容器は、主面の凹みを目立たなくすることができる反面、側面が大きく凹む場合があり、容器全体として凹みを目立たなくすることはできない。 However, in the above-mentioned conventional container, the depression of the main surface can be made inconspicuous, but the side surface may be greatly depressed, and the depression cannot be made inconspicuous as a whole container.
本発明は、上記の点に鑑みてなされたもので、減圧時の凹みを目立たなくすることができる液体容器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 liquid container capable of making the recesses inconspicuous during pressure reduction inconspicuous.
本発明の液体容器の一態様は、樹脂により形成した容器本体を有する。容器本体の周壁は、容器本体の周方向に連続して並んだ複数の凸部を有する。凸部は、容器本体の底壁と垂直な上下方向に延びた稜部を有する。凸部は、周方向に隣接する他の凸部との間の谷部から稜部に向けて傾斜した斜面を有する。稜部の上下方向の中央は、上下方向の両端より外方へ膨出している。 One mode of the liquid container of the present invention has a container body formed of resin. The peripheral wall of the container body has a plurality of convex portions that are continuously arranged in the circumferential direction of the container body. The convex portion has a ridge portion that extends in a vertical direction perpendicular to the bottom wall of the container body. The convex portion has an inclined surface that is inclined from the valley portion between another convex portion adjacent in the circumferential direction toward the ridge portion. The vertical center of the ridge bulges outward from both ends in the vertical direction.
本発明の一態様によれば、減圧時の凹みを目立たなくすることができる液体容器を提供することができる。 According to one aspect of the present invention, it is possible to provide a liquid container capable of making the depression when pressure is reduced inconspicuous.
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、液体容器１００は、容器本体１０およびカバー体２０を有する。容器本体１０は、ＰＥＴ（ポリエチレンテフタレート）を原料にした樹脂により形成された、いわゆるＰＥＴボトルである。カバー体２０は、例えば樹脂により形成される。本実施形態の液体容器１００は、例えば、芳香剤や消臭剤などの揮散性を有する薬剤Ｙの揮散容器として使用される。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the liquid container 100 has a container body 10 and a cover body 20. The container body 10 is a so-called PET bottle made of a resin made of PET (polyethylene terephthalate). The cover body 20 is made of, for example, resin. The liquid container 100 of the present embodiment is used, for example, as a volatilization container for a volatile drug Y such as an aromatic agent and a deodorant.
図２に示すように、容器本体１０は、カバー体２０により覆われたネック部１１および肩部１３を有する。容器本体１０は、例えば、ブロー成形により形成される。液体容器１００を出荷する際には、ネック部１１の上端開口１１ａを介して容器本体１０内に薬剤Ｙを充填し、上端開口１１ａを図示しない内キャップにより密閉し、肩部１３にカバー体２０を被せる。 As shown in FIG. 2, the container body 10 has a neck portion 11 and a shoulder portion 13 covered by a cover body 20. The container body 10 is formed by, for example, blow molding. When shipping the liquid container 100, the medicine Y is filled into the container body 10 through the upper end opening 11a of the neck portion 11, the upper end opening 11a is sealed with an inner cap (not shown), and the shoulder portion 13 is covered. Cover.
カバー体２０の内側には、円板状の揮散体１９が取り付けられている。カバー体２０の内周面には、揮散体１９の下端縁に係合して支持する複数の支持突起２１が突設されている。つまり、図２に示すようにカバー体２０を容器本体１０に取り付けた状態で、揮散体１９の上方に空間が形成されており、揮散体１９が支持突起２１から離間する上方に移動可能となっている。揮散体１９は、例えば、パルプやポリエステル繊維、アクリル繊維などの薬剤Ｙを保持して揮散させることができる材料により形成されている。 A disk-shaped volatilization body 19 is attached to the inside of the cover body 20. On the inner peripheral surface of the cover body 20, a plurality of support protrusions 21 that engage with and support the lower end edge of the volatilization body 19 are provided. That is, as shown in FIG. 2, with the cover body 20 attached to the container body 10, a space is formed above the volatilization body 19, and the volatilization body 19 can move upward away from the support protrusion 21. ing. The volatilization body 19 is formed of a material capable of holding and volatilizing the drug Y, such as pulp, polyester fiber, or acrylic fiber.
液体容器１００を使用する場合には、カバー体２０を一旦取り外して図示しない内キャップを上端開口１１ａから取り除き、容器本体１０の上端開口１１ａを開放する。そして、図２に示すように、揮散体１９を支持したカバー体２０を容器本体１０に被せて、揮散体１９の下面を吸い上げ芯１７の上端に接触させる。 When the liquid container 100 is used, the cover body 20 is once removed, the inner cap (not shown) is removed from the upper end opening 11a, and the upper end opening 11a of the container body 10 is opened. Then, as shown in FIG. 2, the cover body 20 supporting the volatilization body 19 is covered on the container body 10, and the lower surface of the volatilization body 19 is brought into contact with the upper end of the suction core 17.
吸い上げ芯１７は、毛細管現象により液体を吸い上げ可能に円柱状に形成されており、中栓１５の中央を貫通して設けられている。吸い上げ芯１７は、例えば、ポリエステル繊維やナイロン繊維、ポリアセタール樹脂などの素材により形成される。吸い上げ芯１７の上端は、中栓１５をネック部１１に取り付けた図２の状態で、ネック部１１の上端開口１１ａより上方にわずかに突出している。このため、揮散体１９を支持したカバー体２０を取り付けると、揮散体１９が吸い上げ芯１７の上端によってわずかに押し上げられ、揮散体１９が支持突起２１からわずかに上方に離間する。 The suction core 17 is formed in a cylindrical shape so that the liquid can be sucked up by a capillary phenomenon, and is provided so as to penetrate the center of the inner plug 15. The suction core 17 is made of, for example, a material such as polyester fiber, nylon fiber, or polyacetal resin. The upper end of the suction core 17 slightly protrudes upward from the upper end opening 11a of the neck portion 11 in the state where the inside plug 15 is attached to the neck portion 11 in FIG. Therefore, when the cover body 20 supporting the volatilization body 19 is attached, the volatilization body 19 is slightly pushed up by the upper end of the suction core 17, and the volatilization body 19 is slightly separated upward from the support protrusion 21.
カバー体２０は、容器本体１０のネック部１１を覆うように肩部１３に嵌合して取り付けられる。カバー体２０は、芳香剤を揮散させるための複数の揮散孔２２を有する。容器本体１０のネック部１１の上端開口１１ａを介して揮散した薬剤Ｙは、カバー体２０の複数の揮散孔２２を介して揮散される。容器本体１０内に収容する薬剤Ｙとして、上述した芳香剤や消臭剤の他に、殺虫剤などを収容してもよい。 The cover body 20 is fitted and attached to the shoulder portion 13 so as to cover the neck portion 11 of the container body 10. The cover body 20 has a plurality of volatilization holes 22 for volatilizing the fragrance. The drug Y that has volatilized through the upper end opening 11 a of the neck portion 11 of the container body 10 is volatilized through the plurality of volatilization holes 22 of the cover body 20. As the medicine Y contained in the container body 10, an insecticide or the like may be contained in addition to the above-mentioned aromatic agent and deodorant.
ＰＥＴにより形成した容器本体１０に芳香剤などの薬剤Ｙを収容して図示しない内キャップにより上端開口１１ａを密封した状態で長時間が経過すると、容器本体１０内に収容した薬剤Ｙが容器内部の空気と反応して容器本体１０内に負圧を生じる。また、ＰＥＴは経時的に水を透過する性質も有するため、水分が容器本体１０の壁を透過して、容器本体１０の内圧が低下する場合もある。 If a drug Y such as an aromatic is contained in the container body 10 formed of PET and a long time elapses with the upper end opening 11a sealed with an inner cap (not shown), the drug Y contained in the container body 10 is stored inside the container. A negative pressure is generated in the container body 10 by reacting with air. Further, since PET also has a property of permeating water over time, water may permeate the wall of the container body 10 and the internal pressure of the container body 10 may decrease.
このように、密閉した容器本体１０の内部に負圧を生じると、容器本体１０の壁が内側に凹んで見栄えが悪くなる不具合を生じる。このため、本実施形態の液体容器１００は、容器本体１０の周壁１２に凹みを生じた場合であっても、凹みを見え難くするための構造を有する。 As described above, when a negative pressure is generated inside the closed container body 10, the wall of the container body 10 is recessed inward, which causes a problem of poor appearance. Therefore, the liquid container 100 of the present embodiment has a structure for making it difficult to see the recess even when the peripheral wall 12 of the container body 10 has the recess.
本実施形態の液体容器１００は、容器本体１０の周壁１２の構造に特徴を有する。このため、ここでは、周壁１２以外の構造に関する詳細な説明を省略する。言い換えると、周壁１２の構造以外は、いかなる構造であってもよく、あらゆる形状の液体容器に本発明を適用することができる。なお、本発明は、経時的に水を透過するＰＥＴボトルの周壁１２に適用した場合により効果的である。 The liquid container 100 of the present embodiment is characterized by the structure of the peripheral wall 12 of the container body 10. Therefore, a detailed description of the structure other than the peripheral wall 12 is omitted here. In other words, any structure other than the structure of the peripheral wall 12 may be used, and the present invention can be applied to liquid containers of any shape. The present invention is more effective when applied to the peripheral wall 12 of a PET bottle that allows water to permeate with time.
容器本体１０は、筒状の周壁１２と、周壁１２の下端を塞ぐ底壁１４と、を一体に有する。周壁１２は、筒状であればよく、円筒形や四角筒形などいかなる形状であってもよい。底壁１４は、周壁１２の下端を密閉して塞ぐものであればいかなるものであってもよい。本実施形態では、周壁１２は、４つの壁１２ａ、１２ｂ、１２ｃ、１２ｄをつなげた円筒形に近い略四角筒形に形成した。４つの壁１２ａ、１２ｂ、１２ｃ、１２ｄのうち対向する２つの壁１２ａ、１２ｂが周方向に湾曲しており、残り２つの互いに対向する壁１２ｃ、１２ｄが平らである。 The container body 10 integrally has a cylindrical peripheral wall 12 and a bottom wall 14 that closes the lower end of the peripheral wall 12. The peripheral wall 12 only needs to have a tubular shape, and may have any shape such as a cylindrical shape or a rectangular tubular shape. The bottom wall 14 may be any as long as it seals and closes the lower end of the peripheral wall 12. In this embodiment, the peripheral wall 12 is formed in a substantially rectangular tube shape that is close to a cylindrical shape in which four walls 12a, 12b, 12c, and 12d are connected. Of the four walls 12a, 12b, 12c, 12d, two facing walls 12a, 12b are curved in the circumferential direction, and the remaining two facing walls 12c, 12d are flat.
図３に示すように、周壁１２の４つの壁のうち湾曲した正面の壁１２ａには、底壁１４と垂直な図示上下方向に延設された複数（本実施形態では４つ）の凸部２が設けられている。凸部２の図示上端は、容器本体１０の肩部１３の近くまで延びている。凸部２の図示下端は、容器本体１０の底壁１４の近くまで延びている。複数の凸部２は、容器本体１０の周方向（壁１２ａの図示左右方向）に連続して並べて設けられている。 As shown in FIG. 3, on the curved front wall 12a among the four walls of the peripheral wall 12, a plurality of (four in the present embodiment) convex portions extending in the vertical direction in the drawing perpendicular to the bottom wall 14 are provided. Two are provided. The illustrated upper end of the convex portion 2 extends to near the shoulder portion 13 of the container body 10. The lower end of the convex portion 2 in the drawing extends to near the bottom wall 14 of the container body 10. The plurality of convex portions 2 are continuously arranged side by side in the circumferential direction of the container body 10 (the lateral direction of the wall 12a in the drawing).
凸部２は、周壁１２の４つの壁１２ａ、１２ｂ、１２ｃ、１２ｄのうち少なくとも１つの壁に形成すればよい。凸部２の数は任意に設定可能である。本実施形態では、正面の壁１２ａの他に、図４および図５に示すように、正面の壁１２ａに対向する背面側の湾曲した壁１２ｂにも同じ形状の複数（本実施形態では４つ）の凸部２を設けた。例えば、容器本体１０が略円筒形である場合などには、凸部２を容器本体１０の全周にわたって設けてもよい。 The convex portion 2 may be formed on at least one of the four walls 12a, 12b, 12c, 12d of the peripheral wall 12. The number of convex portions 2 can be set arbitrarily. In the present embodiment, in addition to the front wall 12a, as shown in FIGS. 4 and 5, a plurality of the same shapes (four in the present embodiment, four curved walls 12b on the rear side facing the front wall 12a) are used. 2) is provided. For example, when the container body 10 has a substantially cylindrical shape, the convex portion 2 may be provided over the entire circumference of the container body 10.
各凸部２は、上下方向に延びた稜部３を有する。凸部２は、稜部３に向けて容器本体１０の外方に隆起した山状に形成されている。言い換えると、凸部２は、容器本体１０の周方向の両側に隣接する他の凸部２との間の境界線４（以下、谷部４と称する）から稜部３につながる２つの斜面５、６を有する。周方向に隣接する２つの凸部２の間の谷部４は、底壁１４と垂直に直線状に延びている。 Each convex portion 2 has a ridge portion 3 extending in the vertical direction. The convex portion 2 is formed in a mountain shape protruding toward the ridge portion 3 to the outside of the container body 10. In other words, the convex portion 2 has two slopes 5 that are connected to the ridge 3 from a boundary line 4 (hereinafter, referred to as a valley portion 4) between the convex portion 2 and another convex portion 2 that is adjacent to both sides in the circumferential direction of the container body 10. , 6 are included. A valley portion 4 between two convex portions 2 adjacent to each other in the circumferential direction extends in a straight line perpendicular to the bottom wall 14.
稜部３は、図３に示すように、上下方向の中央が図示右側に突出する略円弧状に湾曲している。このため、稜部３の図示左側の斜面５は、上下方向の中央付近が図示右側に膨出する形状を有する。つまり、斜面５の容器本体１０の周方向に沿った幅は、上下方向の両端より上下方向中央が広く形成されている。反対に、稜部３の図示右側の斜面６は、上下方向の中央が図示右側に湾曲して凹む形状を有する。１つの凸部２において、斜面５の面積は、斜面６の面積より大きい。よって、中央が膨出した斜面５を有する壁部分は、斜面６を有する壁部分より大きく、容器本体１０の内部に負圧が生じた場合に、斜面６を有する壁部分より凹み易い。斜面５を有する壁部分は、負圧により内側に凹むように変形する変形壁部８として機能する。 As shown in FIG. 3, the ridge portion 3 is curved in a substantially arcuate shape whose center in the up-down direction projects rightward in the drawing. For this reason, the slope 5 on the left side of the ridge portion 3 has a shape in which the vicinity of the center in the vertical direction bulges to the right side in the figure. In other words, the width of the slope 5 along the circumferential direction of the container body 10 is wider at the center in the vertical direction than at both ends in the vertical direction. On the contrary, the slope 6 on the right side of the ridge portion 3 has a shape in which the center in the vertical direction is curved and recessed to the right side in the figure. In one protrusion 2, the area of the slope 5 is larger than the area of the slope 6. Therefore, the wall portion having the slope 5 whose center is swollen is larger than the wall portion having the slope 6 and is more likely to be recessed than the wall portion having the slope 6 when a negative pressure is generated inside the container body 10. The wall portion having the slope 5 functions as a deforming wall portion 8 that is deformed so as to be recessed inward by negative pressure.
また、稜部３は、図４および図５に示すように、上下方向の中央が容器本体１０の外方に向けて膨出するように略円弧状に湾曲している。このため、稜部３の周方向の両側にある斜面５、６は、平らな面ではなく、稜部３の形状に沿った曲面となる。つまり、変形壁部８も３次元に湾曲した壁である。 In addition, as shown in FIGS. 4 and 5, the ridge portion 3 is curved in a substantially arc shape so that the center in the vertical direction bulges outward of the container body 10. Therefore, the slopes 5 and 6 on both sides of the ridge portion 3 in the circumferential direction are not flat surfaces but curved surfaces that follow the shape of the ridge portion 3. That is, the deformable wall portion 8 is also a three-dimensionally curved wall.
図４および図５に示すように、稜部３が容器本体１０の外方に向けて中央が突出する形状に湾曲しているため、凸部２の上下方向の中央部付近は、キャップ２０の周壁２０ａより外方へわずかに突出している。言い換えると、容器本体１０は、全体的に、上下方向の中央が肩部１３および底壁１４より外側へ膨出した形状を有する。 As shown in FIGS. 4 and 5, since the ridge portion 3 is curved in such a shape that the center thereof projects toward the outside of the container body 10, the vicinity of the central portion of the convex portion 2 in the up-and-down direction is close to the cap 20. It slightly projects outward from the peripheral wall 20a. In other words, the container body 10 has a shape in which the center in the vertical direction bulges outward from the shoulder 13 and the bottom wall 14 as a whole.
図６は、容器本体１０を図３のＦ６−Ｆ６で切断した断面図であり、図７は、容器本体１０を図３のＦ７−Ｆ７で切断した断面図である。上述したように、各凸部２の稜部３の上下方向の中央が外方へ膨出しているため、各凸部２は、容器本体１０の肩部１３の近く（および底壁１４の近く）より上下方向の中央近くの方が斜面５、６の傾斜がきつく際立った山状になっている。各凸部２（および谷部４）は、壁１２ａの補強リブとして機能する。このため、容器本体１０の正面の壁１２ａ（および背面の壁１２ｂ）は、複数の凸部２によって、上下方向の中央付近の剛性が高められている。 6 is a sectional view of the container body 10 taken along line F6-F6 of FIG. 3, and FIG. 7 is a sectional view of the container body 10 taken along line F7-F7 of FIG. As described above, since the vertical center of the ridge portion 3 of each convex portion 2 bulges outward, each convex portion 2 is close to the shoulder portion 13 of the container body 10 (and near the bottom wall 14). ), The slopes 5 and 6 near the center in the vertical direction have a mountain shape in which the slopes are sharp and distinct. Each convex portion 2 (and valley portion 4) functions as a reinforcing rib of the wall 12a. For this reason, the front wall 12a (and the back wall 12b) of the container body 10 is increased in rigidity near the center in the vertical direction by the plurality of convex portions 2.
また、壁１２ａの厚みに着目すると、各凸部２の稜部３付近の壁の厚みが、他の部分の壁よりわずかに厚くなっているのがわかる。容器本体１０をブロー成形により形成すると、傾斜角度がよりきつい上下方向の中央付近において、稜部３付近の壁の厚みが厚くなる。このような壁の厚みの差は、凸部２の斜面５、６の傾斜角度の差に関係する。つまり、斜面５、６の傾斜がきつい部位ほど、稜部３の近くの壁の厚みが厚くなっている。このため、各凸部２の稜部３の近くの壁部分の剛性が他の部分より高くなり、特に、上下方向の中央近くの容器の壁の剛性が高くなる。 Also, paying attention to the thickness of the wall 12a, it can be seen that the thickness of the wall in the vicinity of the ridge portion 3 of each convex portion 2 is slightly thicker than the walls of other portions. When the container body 10 is formed by blow molding, the wall thickness near the ridge portion 3 becomes thicker in the vicinity of the center in the vertical direction where the inclination angle is tighter. Such a difference in wall thickness is related to a difference in inclination angle between the slopes 5 and 6 of the convex portion 2. That is, the thicker the slopes 5 and 6 are, the thicker the wall near the ridge 3 is. Therefore, the rigidity of the wall portion near each ridge 3 of each convex portion 2 becomes higher than that of the other portions, and particularly the rigidity of the wall of the container near the center in the vertical direction becomes higher.
一方、各凸部２の上下方向の端部がそれぞれ容器本体１０の肩部１３および底壁１４につながるため、各凸部２の上下方向の両端近くでは、壁１２ａの剛性は十分に確保されている。つまり、各凸部２において、稜部３の湾曲によって上下方向の中央近くの剛性が高められているとともに、上下方向の両端の剛性も十分に確保されているため、各凸部２が壁１２ａの補強リブとして機能することになる。 On the other hand, since the vertical end portions of each convex portion 2 are connected to the shoulder portion 13 and the bottom wall 14 of the container body 10, respectively, the rigidity of the wall 12a is sufficiently secured near both vertical end portions of each convex portion 2. ing. That is, in each of the protrusions 2, the curvature of the ridge 3 enhances the rigidity near the center in the up-down direction, and the rigidity of both ends in the up-down direction is sufficiently secured. Will function as a reinforcing rib.
以下、上述した凸部２の機能についてより詳細に説明する。
上述したように、容器本体１０に薬剤Ｙを収容して密封すると、経時的に容器本体１０内の薬剤Ｙが空気と反応して容器本体１０内の圧力が低下する場合がある。また、水分が容器本体１０の壁を透過して、容器本体１０の内部圧力が低下する場合もある。
Hereinafter, the function of the convex portion 2 described above will be described in more detail.
As described above, when the drug Y is contained and sealed in the container body 10, the drug Y in the container body 10 may react with air over time and the pressure in the container body 10 may decrease. In addition, water may pass through the wall of the container body 10 and the internal pressure of the container body 10 may drop.
容器本体１０の内圧が低下して負圧になると、容器本体１０の壁１２ａ、１２ｂ、１２ｃ、１２ｄに対し、壁１２ａ、１２ｂ、１２ｃ、１２ｄが内側に凹む方向の力が作用する。この際、容器本体１０の壁の一部が内側に凹む可能性がある。このため、本実施形態では、容器本体１０の正面の壁１２ａおよび背面の壁１２ｂに設けた複数の凸部２の変形壁部８を積極的に凹ませて、容器本体１０の他の壁１２ｃ、１２ｄや肩部などが凹むことを防止している。 When the internal pressure of the container body 10 decreases to a negative pressure, a force is applied to the walls 12a, 12b, 12c, 12d of the container body 10 such that the walls 12a, 12b, 12c, 12d are recessed inward. At this time, a part of the wall of the container body 10 may be recessed inward. Therefore, in the present embodiment, the deforming wall portions 8 of the plurality of convex portions 2 provided on the front wall 12a and the rear wall 12b of the container body 10 are positively recessed to allow the other wall 12c of the container body 10 to be recessed. , 12d and shoulders are prevented from being dented.
凸部２を部分的に凹ませるための前提条件として、他の壁１２ｃ、１２ｄや肩部の壁が、正面の壁１２ａおよび背面の壁１２ｂより変形し難い硬さを有する必要がある。例えば、壁１２ｃ、１２ｄの厚みを厚くしたり、壁１２ａ、１２ｂを薄くしたり、各凸部２の稜部３の湾曲形状を調整したりして、他の壁１２ｃ、１２ｄや肩部の壁を正面および背面の壁１２ａ、１２ｂより変形し難くすることができる。 As a precondition for partially recessing the convex portion 2, it is necessary that the other walls 12c and 12d and the shoulder wall have a hardness that is less likely to be deformed than the front wall 12a and the rear wall 12b. For example, by increasing the thickness of the walls 12c and 12d, thinning the walls 12a and 12b, and adjusting the curved shape of the ridge portion 3 of each convex portion 2, the other walls 12c and 12d and shoulder portions can be formed. The walls can be made less likely to be deformed than the front and rear walls 12a, 12b.
各凸部２が部分的に変形する場合、稜部３付近の壁部分はほとんど変形しない。つまり、稜部３付近の壁部分は、上述したように、容器本体１０の補強リブとして機能し、壁１２ａ、１２ｂの変形を抑えるように機能する。しかし、稜部３を設けた壁部分は、全く変形しない訳ではなく、上下方向の中央付近が容器本体１０の内側にわずかに変形する。 When each convex portion 2 is partially deformed, the wall portion near the ridge portion 3 is hardly deformed. That is, the wall portion near the ridge portion 3 functions as a reinforcing rib of the container body 10 and functions to suppress the deformation of the walls 12a and 12b, as described above. However, the wall portion provided with the ridge portion 3 is not completely deformed, and the vicinity of the vertical center is slightly deformed inside the container body 10.
これに対し、稜部３を間に挟んで容器本体１０の周方向の両側に配置した斜面５、６を含む壁部分は、稜部３付近の壁部分と比較して大きく変形する。つまり、斜面５、６が上述したように曲面であるため、負圧に対して柔軟に動いて、容器本体１０の内側に向かう力を受け流すことができる。特に、斜面６より面積が広い斜面５を有する壁部が変形壁部８として機能し、斜面６を有する壁部より大きく変形する。このため、容器本体１０の内部に負圧が生じた場合であっても、変形壁部８以外の容器本体１０の壁が凹むことを抑制することができる。 On the other hand, the wall portion including the slopes 5 and 6 arranged on both sides in the circumferential direction of the container body 10 with the ridge portion 3 interposed therebetween is largely deformed as compared with the wall portion near the ridge portion 3. That is, since the slopes 5 and 6 are curved surfaces as described above, the slopes 5 and 6 can flexibly move with respect to a negative pressure and receive the force directed to the inside of the container body 10. In particular, the wall portion having the slope 5 having a larger area than the slope 6 functions as the deformation wall portion 8 and is deformed more than the wall portion having the slope 6. Therefore, even when a negative pressure is generated inside the container body 10, it is possible to prevent the walls of the container body 10 other than the deformable wall portion 8 from being depressed.
以上のように、本実施形態によると、容器本体１０の内部に負圧が生じた場合、各凸部２の変形壁部８が積極的に変形するため、他の壁１２ｃ、１２ｄや肩部の壁が凹むことを抑制することができる。また、この場合、各凸部２の稜部３の付近の壁部分の変形も抑えられる。このため、本実施形態によると、容器本体１０の内部に負圧が生じた場合であっても、容器本体１０の全体として見栄えが悪くなることを防止することができる。 As described above, according to the present embodiment, when the negative pressure is generated inside the container body 10, the deforming wall portion 8 of each convex portion 2 is positively deformed, and thus the other walls 12c and 12d and the shoulder portion are formed. It is possible to prevent the wall from denting. Further, in this case, the deformation of the wall portion in the vicinity of the ridge portion 3 of each convex portion 2 can be suppressed. Therefore, according to the present embodiment, it is possible to prevent the appearance of the entire container body 10 from being deteriorated even when a negative pressure is generated inside the container body 10.
なお、容器本体１０の内部に負圧が生じて各凸部２の変形壁部８が変形した場合、各凸部２の稜部３の近くの壁部分もわずかに内側に変形する。しかし、負圧が生じていない状態において上下方向の中央部が外方へ膨出するように稜部３が湾曲しているため、稜部３の近くの壁部分が内側にわずかに変形しても、容器本体１０の見栄えが大きく変わることはない。 When a negative pressure is generated inside the container body 10 and the deformation wall portion 8 of each convex portion 2 is deformed, the wall portion near each ridge portion 3 of each convex portion 2 is also slightly deformed inward. However, since the ridge 3 is curved so that the central portion in the vertical direction bulges outward when no negative pressure is generated, the wall portion near the ridge 3 slightly deforms inward. However, the appearance of the container body 10 does not change significantly.
また、本実施形態によると、容器本体１０の内部に負圧が生じた場合、各凸部２の変形壁部８が大きく変形して、容器本体１０の上下方向の中央付近が全体的に内側に凹む。このとき、変形壁部８を正面から見た形状が、上下方向の中央が周方向の一方へ膨らむように湾曲した形状であるため、中央が凹んだように見え難くする効果がある。 Further, according to the present embodiment, when a negative pressure is generated inside the container body 10, the deformation wall portion 8 of each convex portion 2 is largely deformed, and the vicinity of the center of the container body 10 in the vertical direction is entirely inside. Dent into At this time, the shape of the deformable wall portion 8 viewed from the front is a shape in which the center in the up-down direction is curved so as to bulge in one direction in the circumferential direction, and therefore, it is difficult to look like the center is recessed.
さらに、本実施形態によると、複数の凸部２を周方向に区画した谷部４が底壁１４と垂直な方向に真っ直ぐ延びているため、容器本体１０の上下方向に外力が作用した場合における強度を高めることができる。 Furthermore, according to the present embodiment, since the valley portion 4 that divides the plurality of convex portions 2 in the circumferential direction extends straight in the direction perpendicular to the bottom wall 14, when an external force acts in the vertical direction of the container body 10. Strength can be increased.
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 based on the embodiments, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications and applications are possible within the scope of the gist of the present invention. is there.
例えば、上述した実施形態では、各凸部２において、稜部３を周方向に湾曲させて変形壁部８の周方向の一端辺だけを湾曲させた場合について説明したが、これに限らず、谷部４側の変形壁部８の周方向の他端辺も中央が膨出するように湾曲させてもよい。 For example, in the above-described embodiment, in each of the convex portions 2, the ridge portion 3 is curved in the circumferential direction and only one circumferential side of the deformable wall portion 8 is curved. However, the present invention is not limited to this. The other end side of the deformation wall portion 8 on the valley portion 4 side in the circumferential direction may also be curved so that the center bulges.
２…凸部、 ３…稜部、 ４…谷部、 ５、６…斜面、 ８…変形壁部、 １０…容器本体、 １２…周壁、 １２ａ、１２ｂ、１２ｃ、１２ｄ…壁、 １３…肩部、 １４…底壁、 １５…中栓、 １７…吸い上げ芯、 １９…揮散体、 ２０…カバー体、 １００…液体容器、 Ｙ…薬剤。 2 ... Convex part, 3 ... Ridge part, 4 ... Valley part, 5, 6 ... Slope, 8 ... Deformation wall part, 10 ... Container body, 12 ... Perimeter wall, 12a, 12b, 12c, 12d ... Wall, 13 ... Shoulder part , 14 ... bottom wall, 15 ... inner stopper, 17 ... suction core, 19 ... volatilization body, 20 ... cover body, 100 ... liquid container, Y ... medicine.
Claims (4)
前記容器本体の周壁が、前記容器本体の周方向に連続して並んだ複数の凸部を有し、
前記凸部が、前記容器本体の底壁と垂直な上下方向に延びた稜部を有し、前記周方向に隣接する他の凸部との間の谷部から前記稜部に向けて傾斜した斜面を有し、
前記稜部の前記上下方向の中央が前記上下方向の両端より外方へ膨出している、
液体容器。 It has a container body made of resin,
The peripheral wall of the container body has a plurality of convex portions continuously arranged in the circumferential direction of the container body,
The convex portion has a ridge portion that extends in a vertical direction perpendicular to the bottom wall of the container body, and is inclined toward the ridge portion from a valley portion between another convex portion that is adjacent to the circumferential direction. Has a slope,
The center of the ridge portion in the vertical direction bulges outward from both ends in the vertical direction,
Liquid container.
前記容器本体の周壁が、前記容器本体の周方向に連続して並んだ複数の凸部を有し、
前記凸部が、前記容器本体の底壁と垂直な上下方向に延びた稜部を有し、前記周方向に隣接する他の凸部との間の谷部から前記稜部に向けて傾斜した斜面を有し、
前記容器本体の周方向に沿った前記斜面の幅が、前記上下方向の両端より前記上下方向の中央が広い、
液体容器。 It has a container body made of resin,
The peripheral wall of the container body has a plurality of convex portions continuously arranged in the circumferential direction of the container body,
The convex portion has a ridge portion that extends in a vertical direction perpendicular to the bottom wall of the container body, and is inclined toward the ridge portion from a valley portion between another convex portion that is adjacent to the circumferential direction. Has a slope,
The width of the slope along the circumferential direction of the container body, the center in the vertical direction is wider than both ends in the vertical direction,
Liquid container.
請求項１または請求項２の液体容器。 The valley portion extends linearly in the vertical direction,
The liquid container according to claim 1 or 2.
請求項１または請求項２の液体容器。 The container body is formed of a resin material using polyethylene terephthalate as a raw material,
The liquid container according to claim 1 or 2.
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| JP2008030814A (en) * | 2006-07-31 | 2008-02-14 | Yoshino Kogyosho Co Ltd | Synthetic resin bottle body |
| JP2012517949A (en) * | 2009-02-18 | 2012-08-09 | アムコー リミテッド | High temperature filling container |
| JP2018140824A (en) * | 2017-02-28 | 2018-09-13 | サントリーホールディングス株式会社 | Resin container |
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| JPH0589214U (en) * | 1992-05-11 | 1993-12-07 | 株式会社吉野工業所 | Bottle made of synthetic resin |
| US20020008077A1 (en) * | 2000-05-22 | 2002-01-24 | Lane Michael T. | Hot-fillable, blow molded container |
| JP2008030814A (en) * | 2006-07-31 | 2008-02-14 | Yoshino Kogyosho Co Ltd | Synthetic resin bottle body |
| JP2012517949A (en) * | 2009-02-18 | 2012-08-09 | アムコー リミテッド | High temperature filling container |
| JP2018140824A (en) * | 2017-02-28 | 2018-09-13 | サントリーホールディングス株式会社 | Resin container |
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