JP4416081B2 - Delami bottle - Google Patents
Delami bottle Download PDFInfo
- Publication number
- JP4416081B2 JP4416081B2 JP2004024262A JP2004024262A JP4416081B2 JP 4416081 B2 JP4416081 B2 JP 4416081B2 JP 2004024262 A JP2004024262 A JP 2004024262A JP 2004024262 A JP2004024262 A JP 2004024262A JP 4416081 B2 JP4416081 B2 JP 4416081B2
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- JP
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- Prior art keywords
- bottle
- pinch
- inner layer
- outer layer
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000032798 delamination Effects 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005336 cracking Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
- Packages (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Description
本発明はデラミボトルに関する。 The present invention relates to a delami bottle.
ボトル内へ外気が流入すると、収納物が酸化等して変質し易くなることを防止するために、剥離容易な内外二層のボトルとして、収縮して弾性復元しない内層と、非変形又は弾性復元する外層とし、内層内収納物がポンプ等による吸出し等で減少すると外層が有する外気流入孔から内外両層間に外気が入ることで、内層だけが収縮するに対して外層は変形しないで外形を保つことが可能とした、いわゆるデラミボトルが知られている（特許文献１）。
上記デラミボトルは底部にデラミボトル成形用二層パリソンの底部挟着跡としてのピンチオフを有し、該ピンチオフはその内外層間にわずかな剥離、所謂ワレを生じ易く、該ボトルを水場で使用した際に内外両層間に水が入ることがある。 The Delami bottle has a pinch-off as a bottom pinching trace of the two-layer parison for forming a Delami bottle at the bottom, and the pinch-off tends to cause slight peeling between the inner and outer layers, so-called cracking, and when the bottle is used in a water field Water may enter between the inner and outer layers.
よって胴部の内外両層が剥離しても、ボトル底部においては剥離せず、よって上記ワレからボトル内へ水が侵入しないようにすることが望ましい。 Therefore, even if both the inner and outer layers of the trunk portion are peeled off, it is desirable that the bottom of the bottle does not peel off, so that water does not enter the bottle from the crack.
本発明は、ボトル底部における内層の剥離が生じ難く、よってその底部からの水侵入を防止できるよう設けたものである。 The present invention is provided to prevent the inner layer from peeling off at the bottom of the bottle, and thus to prevent water from entering from the bottom.
第１の手段として、胴部３から口頸部５を起立するボトルを、相互に剥離可能な外層10と内層９とを重ね、かつ底壁でピンチオフ６を形成し、又外層一部へ外気導入孔７を穿設したデラミボトルにおいて、胴部３の下部に、胴下端部3aを残して、上向き面8aと、下内方へ張出しする下向き面8bからなる凹溝８を周設した。 As a first means, a bottle that erects the neck portion 5 from the body 3 is overlapped with an outer layer 10 and an inner layer 9 that can be peeled from each other, and a pinch-off 6 is formed on the bottom wall. In the Delami bottle having the introduction hole 7, a concave groove 8 including an upward surface 8 a and a downward surface 8 b projecting downward inward is provided around the lower portion of the body 3, leaving the lower end 3 a of the body.
第２の手段として、上記第１の手段を有すると共に上記ピンチオフ６延長面と直交する、口頸部５下部の外層10対向部分へ、外気導入孔７を穿設した。 As a second means, an outside air introduction hole 7 was drilled in a portion facing the outer layer 10 at the lower part of the mouth-and-neck part 5 which has the first means and is orthogonal to the extended surface of the pinch-off 6.
第３の手段として、上記第１又は第２の手段を有すると共に上記ピンチオフ６延長面上に位置する内外両層部分を接着させて、少なくとも一本の接合条11を縦設した。 As a third means, at least one joining strip 11 was provided vertically by bonding the inner and outer layer portions located on the extended surface of the pinch off 6 while having the first or second means.
第４の手段として、上記第１の手段を有すると共に凹溝８下方の胴下端部3aと凹溝８上方の胴部分とは略同一外径とした。As a fourth means, the lower end portion 3a below the concave groove 8 and the trunk portion above the concave groove 8 have substantially the same outer diameter while having the first means.
請求項１のようにすることで、外層10から内層９が剥離したとき、外層10は凹溝８を有する形状を保つに対して、内層９はその凹溝内面から剥離することでその凹溝形状部分における下内方および下外方への傾斜屈折形状が崩れることとなり、従って外層10の上下方向長さに対して、内層９は上記凹溝の内層部分が剥離した分だけ長くなることとなり、よって胴部内面の内層部分が剥離しても上記のように内層は外層よりも長くなっているため、その剥離が底壁２へ及ぶことは少なく、よってピンチオフにおける内外層間のワレから、外層内へ水が入ることを防止できる。又そのように、ピンチオフのワレを外層底壁部分へ接合する内層底壁部分が閉塞しているから、デラミボトルのスクイズ時において、内外層間空気が上記ワレから洩れることがない。 According to the first aspect, when the inner layer 9 is peeled from the outer layer 10, the outer layer 10 maintains the shape having the groove 8, whereas the inner layer 9 is peeled from the inner surface of the groove to thereby remove the groove. The inclined inward and downward bent shapes in the shape portion will collapse, and therefore the inner layer 9 will be longer than the vertical length of the outer layer 10 by the amount the inner layer portion of the groove is peeled off. Therefore, even if the inner layer portion of the inner surface of the body portion is peeled off, the inner layer is longer than the outer layer as described above, so that the peeling does not reach the bottom wall 2, so the cracks between the inner and outer layers in the pinch-off state Water can be prevented from entering inside. In addition, since the inner layer bottom wall portion that joins the pinch-off crack to the outer layer bottom wall portion is closed, the inner and outer interlayer air does not leak from the crack during squeezing of the delamination bottle.
更に胴部の下部に設けた凹溝８は、胴部スクイズの力を吸収して底部への力を逃すこととなり、よってピンチオフのワレを低減することが出来る。 Further, the concave groove 8 provided in the lower portion of the trunk portion absorbs the force of the trunk portion squeeze and releases the force to the bottom portion, thereby reducing the pinch-off crack.
請求項２のようにすることで、外層10から剥離する内層部分は、ピンチオフ６の上方延長面へ向け圧縮されて平たく帯状に収縮することとなり、又上記のように凹溝内層部分が剥離することで内層収縮部分長さが外層よりも長くなることもあって、ピンチオフ６上方の底壁内層部分は対応する外層部分上面へ付着したまま残ることとなり、上記ワレからの水の侵入を防止できる。 According to the second aspect, the inner layer portion peeled off from the outer layer 10 is compressed toward the upper extension surface of the pinch-off 6 and contracted into a flat band shape, and the groove inner layer portion is peeled off as described above. As a result, the inner layer contraction part length may be longer than that of the outer layer, and the inner layer part of the bottom wall above the pinch-off 6 remains attached to the upper surface of the corresponding outer layer part, so that the intrusion of water from the crack can be prevented. .
請求項３のようにすることで、内層９の剥離は、ピンチオフ部分およびその延長面上の接合条11を除く部分で行われ、かつ上記のように凹溝内層部分の剥離で内層収縮部分長さが外層長さよりも長くなることもあってピンチオフ上方の内層部分剥離を防ぐことが出来、上記ワレからの水侵入を防止できる。 According to the third aspect of the present invention, the inner layer 9 is peeled off at the portion excluding the pinch-off portion and the joining strip 11 on the extended surface, and the inner layer contracted portion length is removed by peeling off the inner groove portion as described above. The length of the inner layer may be longer than the length of the outer layer, so that it is possible to prevent partial peeling of the inner layer above the pinch-off and prevent water penetration from the crack.
以下図１から図６が示す第１実施形態について説明する。まず従来公知の部分について簡単に説明すると、１は底壁２外周から胴部３を起立し、該胴部上端から上内方への弯曲肩部４を介して口頸部５を起立するデラミボトルで、その口頸部の下端部は大径とし、該下端部から僅かに縮径して上部に雄ねじを有する小径口頸部を起立している。 The first embodiment shown in FIGS. 1 to 6 will be described below. First, a conventional well-known part will be briefly described. 1 is a delami bottle in which a body part 3 is erected from the outer periphery of the bottom wall 2 and a mouth and neck part 5 is erected through a curved shoulder part 4 from the upper end of the body part to the upper and inner sides. Thus, the lower end portion of the mouth and neck portion has a large diameter, and a small diameter mouth and neck portion having a male screw on the upper portion is slightly raised from the lower end portion.
該デラミボトルは、異材質の内層と外層とを重合わせて形成したパリソンを、下端で挟持圧搾してブロー成形し、かつその挟持圧搾部をピンチオフ６として残し、その下方部分を喰い切りしたものであり、上記小径口頸部の下部外層部分の、ピンチオフ延長面と直交する前後両部分には外気導入孔７を穿設している。その内層と外層とは異材質としたため上記両外気導入孔から内外両層間へ高圧空気を吹込むことで剥離するものであり、デラミボトル使用に先だち内層胴部部分を予備操作で剥離しておき、又内層内へ外気を吹込みして内層を復元し内外両層を接触させたものである。尚上記口頸部５には、ポンプ式の噴出器を装着させてそのポンプ操作でボトル内液体を噴出させるノズルを、ないしはボトル胴部弾性圧搾でボトル内収納物を注出させる塗布具を装着させる。 The Delami bottle is a parison formed by overlapping the inner and outer layers of different materials, pinched and blow molded at the lower end, and the pinched off portion is left as a pinch-off 6 and its lower part is cut off. In addition, outside air introduction holes 7 are formed in both the front and rear portions perpendicular to the pinch-off extension surface of the lower outer layer portion of the small-diameter neck. Since the inner layer and the outer layer are made of different materials, they are peeled off by blowing high-pressure air from both the outside air introduction holes into the inner and outer layers, and the inner layer body part is peeled off by preliminary operation prior to using the Delami bottle, Also, outside air is blown into the inner layer, the inner layer is restored, and both the inner and outer layers are brought into contact with each other. The mouth / neck portion 5 is equipped with a nozzle that is equipped with a pump-type ejector and ejects the liquid in the bottle by operating the pump, or an applicator that ejects the contents stored in the bottle by the bottle body elastic compression. Let
本発明においては上記胴部３の下部に、胴下端部3aを残して断面Ｖ字形状の凹溝８を周設した。その凹溝は、図示のように該凹溝の上向き面8aをテーパ面とし、かつ下向き面8bを下内方へ張出しする弯曲面としている。又凹溝下方の胴下端部と凹溝上方の胴部分とはほぼ同一外径としている。尚上記凹溝は、横向きのＵ字形状であってもよい。 In the present invention, a concave groove 8 having a V-shaped cross section is provided around the lower portion of the barrel portion 3, leaving the barrel lower end portion 3a. As shown in the drawing, the concave groove is formed as a curved surface that has the upward surface 8a of the concave groove as a tapered surface and the downward surface 8b projecting downward and inward. In addition, the lower end portion of the trunk below the concave groove and the trunk portion above the concave groove have substantially the same outer diameter. The concave groove may be a U-shaped sideways.
又本発明にあっては、図１が示すように、図前後方向対向位置に穿設した外気導入孔７に対して、ピンチオフ６は直交させて図左右方向へ位置させて形成した。 Further, in the present invention, as shown in FIG. 1, the pinch-off 6 is formed so as to be orthogonal to the outside air introduction hole 7 formed at a position opposed to the front-rear direction in the figure and to be positioned in the left-right direction in the figure.
上記構成において、デラミボトル１内が、該ボトル上部へ付設したポンプの作動ないしデラミボトル胴部の弾性圧搾等で負圧化すると、外気導入孔７から外気が内層９と外層10との間へも流入することで、内層９だけが収縮することとなる。該内層の収縮は収納液等の減少に伴ってデラミボトル上方から順次下方へ進行することとなるが内層収縮がデラミボトルの胴部下端まで及ぶと、既述凹溝内面を形成していた内層部分は形を崩し、よって凹溝形状を保つ外層に対して凹溝形状を崩した内層の長さは外層よりも長くなり、よって底壁内層部分9aは収納液等の残量が少なくなっても、図５が示すようにその底壁外層部分10ａから剥離するおそれは少なく、よってピンチオフ６の内外両層部分間にワレが生じても上記内層部分がその上面を閉塞していることで、そのワレから水等が内外両層間に入ることを防ぐことが出来る。従って凹溝８の深さは、外層10の長さよりも、凹溝形成部分剥離後の内層収縮部分長さが充分長くなるよう設けておく。 In the above configuration, when the inside of the delami bottle 1 becomes negative pressure by the operation of the pump attached to the upper part of the bottle or the elastic squeezing of the delami bottle body, the outside air also flows into the space between the inner layer 9 and the outer layer 10 from the outside air introduction hole 7. As a result, only the inner layer 9 contracts. The shrinkage of the inner layer proceeds from the upper side of the delamination bottle to the lower side as the stored liquid etc. decrease, but when the inner layer shrinkage reaches the lower end of the body part of the delamination bottle, the inner layer part that has formed the inner surface of the recessed groove is The length of the inner layer that collapsed the groove shape is longer than that of the outer layer, and thus the bottom wall inner layer portion 9a is less in the remaining amount of stored liquid, etc. As shown in FIG. 5, there is little possibility of peeling from the bottom wall outer layer portion 10a. Therefore, even if cracking occurs between the inner and outer layer portions of the pinch-off 6, the inner layer portion closes the upper surface, Water can be prevented from entering the inner and outer layers. Accordingly, the depth of the concave groove 8 is set so that the length of the inner layer contraction portion after peeling of the concave groove forming portion is sufficiently longer than the length of the outer layer 10.
図５と図６とは、外気導入孔７をピンチオフ６の上方延長面と直交する小径口頸部下部の外層対向部分へ穿設した場合の内層９収縮状態を示す。この場合内層９は、図６のようにピンチオフ６の上方延長面を中心とする方向へ平たく帯状に収縮することとなる。既述のように凹溝形成部分内層が、外層から離れることで、外層よりも長くなることもあって、ピンチオフ上方両側の外層部分へ付着する内層部分は、永くその付着状態を保つこととなり、よって既述ワレが生じてもその上面を閉塞し続けることとなる。 FIGS. 5 and 6 show the contracted state of the inner layer 9 when the outside air introduction hole 7 is drilled in a portion facing the outer layer at the lower portion of the small-diameter mouth neck perpendicular to the upper extension surface of the pinch-off 6. In this case, as shown in FIG. 6, the inner layer 9 is flattened in a strip shape in the direction centering on the upper extension surface of the pinch-off 6. As described above, the groove-forming part inner layer may be longer than the outer layer by separating from the outer layer, and the inner layer part that adheres to the outer layer part on both sides above the pinch-off will maintain its adhesion state for a long time, Therefore, even if the above-described cracking occurs, the upper surface is continuously closed.
図７、図８は、ピンチオフ６延長面上の内外両層部分を接着させて、それ等両側にそれぞれ接合条11を縦設した変形例を示す。その他部分は既述の場合と同一であり、同一符号を付することで説明を省略する。 7 and 8 show a modification in which both inner and outer layer portions on the extended surface of the pinch-off 6 are bonded and the joining strips 11 are vertically provided on both sides thereof. The other parts are the same as those already described, and the description is omitted by giving the same reference numerals.
この場合内層９は、上記両接合条11を両側として平たく帯状に折畳みした状態に収縮することとなり、よってこの場合も図５および図６が示すように収縮することとなるものである。尚接合条11は一方側部だけに設けてもよく、このようにしても内壁９の収縮をほぼ良好に行うことが出来る。 In this case, the inner layer 9 is shrunk into a state in which both the joining strips 11 are flatly folded in both sides, so that in this case as well, the inner layer 9 is shrunk as shown in FIGS. The joining strip 11 may be provided only on one side, and in this way, the inner wall 9 can be contracted almost satisfactorily.
１デラミボトル ２底壁
３胴部 ６ピンチオフ
７外気導入孔 ８凹溝
９内層 10外層
11接合条
1 Delami bottle 2 Bottom wall 3 Body 6 Pinch off 7 Outside air introduction hole 8 Concave groove 9 Inner layer 10 Outer layer
11 Joining strip
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004024262A JP4416081B2 (en) | 2004-01-30 | 2004-01-30 | Delami bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004024262A JP4416081B2 (en) | 2004-01-30 | 2004-01-30 | Delami bottle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005212392A JP2005212392A (en) | 2005-08-11 |
| JP4416081B2 true JP4416081B2 (en) | 2010-02-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004024262A Expired - Lifetime JP4416081B2 (en) | 2004-01-30 | 2004-01-30 | Delami bottle |
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| Country | Link |
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| JP (1) | JP4416081B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5267901B2 (en) * | 2007-06-29 | 2013-08-21 | 株式会社吉野工業所 | Synthetic resin double container by direct blow molding method |
| JP5477721B2 (en) * | 2010-09-30 | 2014-04-23 | 株式会社吉野工業所 | Container with cap |
| US10723500B2 (en) | 2014-12-09 | 2020-07-28 | Kyoraku Co., Ltd. | Delamination container, method for attaching cap to delamination container, and method for manufacturing delamination container |
| JP6540015B2 (en) * | 2014-12-19 | 2019-07-10 | キョーラク株式会社 | Method of manufacturing laminated peeling container |
| WO2016098668A1 (en) * | 2014-12-19 | 2016-06-23 | キョーラク株式会社 | Delamination container, method for attaching cap to delamination container, and method for manufacturing delamination container |
| JP6808339B2 (en) * | 2016-03-31 | 2021-01-06 | 株式会社吉野工業所 | Laminated peeling container and preform |
| JP7345959B2 (en) * | 2018-01-26 | 2023-09-19 | 株式会社吉野工業所 | laminated peel container |
| JP6879226B2 (en) * | 2018-02-23 | 2021-06-02 | 東洋製罐グループホールディングス株式会社 | Preform for inner bag containers used in the manufacture of airless bottles |
| JP7194608B2 (en) * | 2019-02-08 | 2022-12-22 | 北海製罐株式会社 | Manufacturing method for synthetic resin multi-bottle |
| JP7099572B2 (en) * | 2021-03-03 | 2022-07-12 | 東洋製罐グループホールディングス株式会社 | Airless bottle with excellent regular shrinkage of inner bag container |
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2004
- 2004-01-30 JP JP2004024262A patent/JP4416081B2/en not_active Expired - Lifetime
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| JP2005212392A (en) | 2005-08-11 |
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