JP5019369B2 - Delamination container - Google Patents

Delamination container Download PDF

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JP5019369B2
JP5019369B2 JP2007173504A JP2007173504A JP5019369B2 JP 5019369 B2 JP5019369 B2 JP 5019369B2 JP 2007173504 A JP2007173504 A JP 2007173504A JP 2007173504 A JP2007173504 A JP 2007173504A JP 5019369 B2 JP5019369 B2 JP 5019369B2
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layer
peeling
inner layer
outer layer
bent portion
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JP2009012786A (en
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古澤　　光夫
夏夫 篠崎
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Yoshino Kogyosho Co Ltd
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Description

本発明は、外層に内層が剥離可能に積層された積層剥離容器に関する。   The present invention relates to a delamination container in which an inner layer is detachably laminated on an outer layer.

外層内面に内層を剥離可能に積層すると共に、空気を内外層間に導入するための空気導入孔を外層に設けて、空気を内層内に導入することなく、内外層間に導入させることで、空気が内層内の内容物に直接触れないようにしたいわゆるデラミ容器が知られている(特許文献１)。
特開２００２−１９３２８４号公報 The inner layer is peelably laminated on the inner surface of the outer layer, and air introduction holes for introducing air between the inner and outer layers are provided in the outer layer, so that air is introduced into the inner and outer layers without being introduced into the inner layer. A so-called Delami container is known in which the contents in the inner layer are not directly touched (Patent Document 1).
JP 2002-193284 A

吹込成形によって成形される容器の底部には、成形時に、内外層が重合接着されるピンチオフが形成されるが、このピンチオフは、内層が外層底部から剥離する際に、重合接着部が剥がれて割れる等するおそれがあった。   At the bottom of the container formed by blow molding, a pinch-off is formed in which the inner and outer layers are polymerized and bonded at the time of molding. There was a risk of

本発明の目的は、内層が外層底部から剥離してもピンチオフが破損するおそれのない積層剥離容器を提供することにある。   An object of the present invention is to provide a delamination container that does not break the pinch-off even when the inner layer peels from the bottom of the outer layer.

本発明は、胴部上端から口頸部を起立する容器本体１を外層５と、該外層内面に剥離可能に積層した内層６とで形成すると共に、該内外層間に空気を導入可能な空気導入部８を外層５に設けた吹込成形による積層剥離容器において、
成形金型に溝を設けておき、空気吹込み時に、該溝内へ内外層からなるパリソンの一部を押し込ませることで容器本体の口頸部を除いた容器本体下部に、内層の屈曲部が外層の屈曲部に挟持された、外層からの内層の剥離を規制する剥離規制部９を外方へ膨出させて周方向全周に設け、かつ内外層の屈曲部成形後に、該屈曲部に上下方向の力を加えて圧潰させることで側方視Ｖ字状に形成したことを特徴とする。 In the present invention, the container body 1 that erects the neck from the upper end of the trunk is formed by the outer layer 5 and the inner layer 6 that is peelably laminated on the inner surface of the outer layer, and the air introduction that can introduce air between the inner and outer layers. In the delamination container by blow molding in which the part 8 is provided in the outer layer 5,
A groove is formed in the molding die, and when the air is blown, a part of the parison made of the inner and outer layers is pushed into the groove, so that the bent portion of the inner layer is formed at the lower part of the container body except for the mouth and neck of the container body. Is provided on the entire circumference in the circumferential direction by bulging outwardly the peeling restricting portion 9 that restricts the peeling of the inner layer from the outer layer , and the bent portion is formed after forming the bent portion of the inner and outer layers. A vertical V-shape is formed by crushing by applying a force in the vertical direction .

本発明は、容器本体の下部に、剥離規制部を設けたので、内層内の内容物が減少することにより、内層が収縮して外層から剥離しても、その剥離は剥離規制部で規制されるため、剥離が外層底部にまで及ぶことがなく、したがって、ピンチオフの破損が防止される。     In the present invention, since the peeling restricting portion is provided at the lower part of the container body, even if the inner layer shrinks and peels from the outer layer due to a decrease in the contents in the inner layer, the peeling is restricted by the peeling restricting portion. Therefore, peeling does not reach the bottom of the outer layer, and therefore, pinch-off damage is prevented.

以下、本発明を図面に示す実施の形態を参照しながら説明する。   The present invention will be described below with reference to embodiments shown in the drawings.

図１および図２において、１は容器本体で、胴部２上端から肩部を介して口頸部３を起立している。この口頸部には、例えば、液体噴出ポンプ等の種々の吸上げ機構が装着可能である。液体噴出ポンプを装着する場合には、後述するようにシリンダを胴部２内に挿入する。   In FIG. 1 and FIG. 2, 1 is a container main body, and the mouth neck part 3 is erected from the upper end of the trunk part 2 through the shoulder part. For example, various suction mechanisms such as a liquid jet pump can be attached to the mouth neck. When the liquid jet pump is mounted, the cylinder is inserted into the body portion 2 as will be described later.

容器本体１は、外層５と、外層５に剥離可能に積層された内層６とから形成されていて、内外層の底部には、吹込成形による成形時に発生するピンチオフ７が形成されている。さらに、胴部２の肩部または口頸部３の外層５部分には空気導入孔８が形成されている。   The container body 1 is formed of an outer layer 5 and an inner layer 6 that is detachably laminated on the outer layer 5, and a pinch-off 7 that is generated at the time of molding by blow molding is formed at the bottom of the inner and outer layers. Further, an air introduction hole 8 is formed in the outer layer 5 portion of the shoulder portion of the trunk portion 2 or the mouth and neck portion 3.

容器本体１の底部に近い下端部には外方へ張り出す屈曲部９が周方向全周に形成されている。屈曲部９は内外層６、５を共に外方へ屈曲させて形成したもので、内層６の屈曲された部分は外層５の屈曲された部分に挟持されている。なお、屈曲部９の位置としては容器本体底部に近い下端部に限らず、容器本体１の下部であれば特にその位置に限定はない。   A bent portion 9 that protrudes outward is formed at the lower end near the bottom of the container body 1 on the entire circumference. The bent portion 9 is formed by bending both the inner and outer layers 6 and 5 outward. The bent portion of the inner layer 6 is sandwiched between the bent portions of the outer layer 5. The position of the bent portion 9 is not limited to the lower end portion close to the bottom of the container body, and the position is not particularly limited as long as it is the lower portion of the container body 1.

次に、屈曲部９の成形方法について簡単に説明する。屈曲部９を形成するには、成形金型に溝を形成して、空気吹込み時に、該溝内へ内外層からなるパリソンの一部が押し込まれるようにする。成形後、成形金型から積層品を取り出し、図３に示すように、屈曲された部分を治具Ａにクランプしてプレス加工により圧潰する。   Next, a method for forming the bent portion 9 will be briefly described. In order to form the bent portion 9, a groove is formed in the molding die so that a part of the parison composed of the inner and outer layers is pushed into the groove when air is blown. After the molding, the laminated product is taken out from the molding die, and the bent portion is clamped to the jig A as shown in FIG.

あるいは成形金型を上下に二分割して下型を上動可能に設けておき、空気吹き込み時に、パリソンの一部を溝内へ押し込むと同時に下型を上動させて溝内のパリソンを圧潰させることによっても成形可能である。     Alternatively, the molding die is divided into two parts, and the lower die is provided so that it can be moved upward. When air is blown, a part of the parison is pushed into the groove and at the same time the lower die is moved upward to crush the parison in the groove. Can also be molded.

次に作用について説明する。   Next, the operation will be described.

本発明は、上記のように、液体噴出ポンプ等の種々の吸上げ機構を備えた注出容器に適用できるが、ここでは液体噴出ポンプが装着された注出容器への適用例について説明する。   As described above, the present invention can be applied to a dispensing container equipped with various suction mechanisms such as a liquid ejection pump. Here, an application example to a dispensing container equipped with a liquid ejection pump will be described.

この適用例を示すのが図４で、まず、構成について簡単に説明すると、口頸部２に嵌合された装着筒を介して内層６内へシリンダ１０が垂下されていて、該シリンダ１０内面には摺動自在に筒状ピストン１１が嵌合されている。該筒状ピントン１１から起立する作動部材１２の上端にはノズル付き押下げヘッド１３が装着されている。     FIG. 4 shows an example of this application. First, the configuration will be briefly described. The cylinder 10 is suspended into the inner layer 6 via a mounting cylinder fitted to the mouth-and-neck portion 2, and the inner surface of the cylinder 10 is shown. A cylindrical piston 11 is slidably fitted into the. A push-down head 13 with a nozzle is attached to the upper end of the operating member 12 rising from the cylindrical pinton 11.

液体を噴出させるには、押下げヘッド１３を押し下げればよく、すると筒状ピストン１１が下降し、シリンダ１０内の液体が作動部材１２を介してノズルから噴出する。噴出後、押下げヘッド１３から手を離すと、図示しないばねの付勢力を受けて作動部材１２が上昇する。     In order to eject the liquid, it is only necessary to push down the pressing head 13. Then, the cylindrical piston 11 is lowered, and the liquid in the cylinder 10 is ejected from the nozzle through the operating member 12. When the hand is released from the push-down head 13 after the ejection, the actuating member 12 rises due to the biasing force of a spring (not shown).

するとシリンダ１１に設けられた図示しない吸上げ弁を介してシリンダ１１内へ内層６内の液体が吸上げられる。こうして内層６内の液体が減少すると、内層６内が負圧化して内層６が収縮し、外層５から剥離する。内層６が外層５から剥離すると、この内外層間に空気導入孔８を介して空気が導入される。     Then, the liquid in the inner layer 6 is sucked into the cylinder 11 via a suction valve (not shown) provided in the cylinder 11. When the liquid in the inner layer 6 decreases in this way, the inner layer 6 becomes negative pressure, the inner layer 6 contracts, and peels from the outer layer 5. When the inner layer 6 is peeled from the outer layer 5, air is introduced into the inner and outer layers through the air introduction hole 8.

この外層５からの内層６の剥離は内層６の上部から始まって下部へと進行する。ある程度剥離が下方へ進行して、屈曲部９に達すると、屈曲部９では内層６の屈曲された部分が外層５の屈曲された部分に挟持されているため、図５および図６に示すように、内層６は外層５から剥離することができず、屈曲部９より下方の内層６部分は剥離不能となる。     The peeling of the inner layer 6 from the outer layer 5 starts from the upper part of the inner layer 6 and proceeds to the lower part. When the peeling progresses to some extent and reaches the bent portion 9, the bent portion of the inner layer 6 is sandwiched between the bent portions of the outer layer 5 in the bent portion 9, and as shown in FIGS. 5 and 6 In addition, the inner layer 6 cannot be peeled off from the outer layer 5, and the inner layer 6 portion below the bent portion 9 cannot be peeled off.

このため容器本体１の底部では剥離が生じることがなく、したがって、ピンチオフ７の接合部に割れが生じて破損することがない。仮に、内層６の剥離が容器本体１の底部にまで及ぶとすると、図７に示すようにピンチオフ７の接合部が、図面において左右に割れることになる。     For this reason, peeling does not occur at the bottom of the container body 1, and therefore, the joint portion of the pinch-off 7 is not cracked and damaged. If the peeling of the inner layer 6 extends to the bottom of the container body 1, the joint portion of the pinch-off 7 is broken left and right in the drawing as shown in FIG.

なお、上記では、屈曲部９を圧潰させた例について説明したが、必ずしも圧潰させる必要はない。     In addition, although the example which crushed the bending part 9 was demonstrated above, it is not necessary to crush.

本発明に係る積層剥離容器の右半部を示す正面図である。It is a front view which shows the right half part of the lamination peeling container which concerns on this invention. 積層剥離容器の下部を示す縦断面図である。It is a longitudinal cross-sectional view which shows the lower part of a lamination peeling container. 剥離規制部の形成時の状態を示す説明図である。It is explanatory drawing which shows the state at the time of formation of a peeling control part. 本発明を液体噴出ポンプの付きの注出容器に適用した例を示す一部断面図である。It is a partial cross section figure which shows the example which applied this invention to the extraction container with a liquid jet pump. 内層の剥離状態を示す図２相当図である。FIG. 3 is a view corresponding to FIG. 2 showing an inner layer peeling state. 内層の剥離状態を示す作用説明図である。It is effect | action explanatory drawing which shows the peeling state of an inner layer. 内層がすべて剥離した場合のピンチオフ破損状態を示す説明図である。It is explanatory drawing which shows the pinch-off damaged state when all the inner layers peel.

符号の説明Explanation of symbols

１ 容器本体
５ 外層
６ 内層
８ 空気導入部
９ 剥離規制部(屈曲部) DESCRIPTION OF SYMBOLS 1 Container body 5 Outer layer 6 Inner layer 8 Air introduction part 9 Peeling restriction part (bending part)

Claims (1)

胴部上端から口頸部を起立する容器本体(１)を外層(５)と、該外層内面に剥離可能に積層した内層(６)とで形成すると共に、該内外層間に空気を導入可能な空気導入部(８)を外層(５)に設けた吹込成形による積層剥離容器において、
成形金型に溝を設けておき、空気吹込み時に、該溝内へ内外層からなるパリソンの一部を押し込ませることで容器本体の口頸部を除いた容器本体下部に、内層の屈曲部が外層の屈曲部に挟持された、外層からの内層の剥離を規制する剥離規制部(９)を外方へ膨出させて周方向全周に設け、かつ内外層の屈曲部成形後に、該屈曲部に上下方向の力を加えて圧潰させることで側方視Ｖ字状に形成したことを特徴とする積層剥離容器。 The container body (1) that stands up from the upper end of the trunk is formed of an outer layer (5) and an inner layer (6) that is peelably laminated on the inner surface of the outer layer, and air can be introduced between the inner and outer layers. In the delamination container by blow molding in which the air introduction part (8) is provided in the outer layer (5),
A groove is formed in the molding die, and when the air is blown, a part of the parison made of the inner and outer layers is pushed into the groove, so that the bent portion of the inner layer is formed at the lower part of the container body except for the mouth and neck of the container body. Is provided on the entire circumference in the circumferential direction by bulging outwardly the peeling restricting portion (9) for restricting the peeling of the inner layer from the outer layer , and after forming the bent portion of the inner and outer layers, A laminated peeling container characterized in that it is formed in a side-viewed V-shape by applying a force in the vertical direction to the bent portion to be crushed .
JP2007173504A 2007-06-29 2007-06-29 Delamination container Active JP5019369B2 (en)

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Publication number Priority date Publication date Assignee Title
JP5476283B2 (en) * 2010-11-30 2014-04-23 株式会社吉野工業所 Delamination container
JP5641430B2 (en) * 2011-01-31 2014-12-17 株式会社吉野工業所 Blow molding housing
JP6112385B2 (en) * 2012-08-31 2017-04-12 株式会社吉野工業所 Blow molded container and manufacturing method thereof
JP6516122B2 (en) * 2014-08-19 2019-05-22 株式会社平和化学工業所 Method of manufacturing double container

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JP4243775B2 (en) * 2003-06-23 2009-03-25 株式会社吉野工業所 Blow molding housing
JP4232899B2 (en) * 2003-08-29 2009-03-04 株式会社吉野工業所 Delami bottle
JP4656314B2 (en) * 2005-09-29 2011-03-23 株式会社吉野工業所 Blow molding container

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