JP5637591B2 - Blow molding container - Google Patents
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- JP5637591B2 JP5637591B2 JP2010172534A JP2010172534A JP5637591B2 JP 5637591 B2 JP5637591 B2 JP 5637591B2 JP 2010172534 A JP2010172534 A JP 2010172534A JP 2010172534 A JP2010172534 A JP 2010172534A JP 5637591 B2 JP5637591 B2 JP 5637591B2
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Description
本発明は、外殻を形成する外層内に、内容物を収容する潰れ減容変形自在な内層を、剥離可能に積層し、内層内に外気を吸引することなく、内容物の注出使用を可能とした、一般にデラミボトルと称されているブロー成形容器に関するものである。 In the present invention, a collapsible, volume-reducible and deformable inner layer containing the contents is detachably laminated in the outer layer forming the outer shell, and the contents can be poured out without sucking outside air into the inner layer. The present invention relates to a blow-molded container that is generally called a delami bottle.
デラミボトルにあっては、内容物の注出使用に従って、内層が、外層から離れて潰れ変形するデラミ現象が発生するが、このデラミ現象は、内容物の重量の関係から、内層の上側から下に向かって進行する。 In the case of a delami bottle, a delami phenomenon occurs in which the inner layer is crushed and deformed away from the outer layer as the contents are poured out. This delamination phenomenon occurs from the upper side to the lower side of the inner layer due to the weight of the contents. Proceed toward.
内層におけるデラミ現象は、内層の大気圧による、単純な潰れ変形であるので、その潰れ変形形態を予測することはできず、全横幅範囲に亘って略密着状態で潰れ変形する内層部分が増えることにより、内容物の注出が行い難くなる、と云う不都合が発生する。 Since the delamination phenomenon in the inner layer is a simple crushing deformation due to the atmospheric pressure of the inner layer, the crushing deformation form cannot be predicted, and the inner layer portion that crushes and deforms in a substantially coherent state over the entire width range increases. Therefore, the inconvenience that it becomes difficult to pour out the contents occurs.
この不都合を解消する手段として、デラミボトルの全高さ範囲に亘って、外層と内層とを接着結合する、細い縦帯状の一つの接着層を設け、この接着層により内層の一部を外層に接着固定して、内層の潰れ変形形態を規制し、この規制により、内層部分の略密着状態での潰れ変形が起り難くし、内容物の注出が行い難くなるのを防止するようにしたものがある。 As a means to eliminate this inconvenience, a thin vertical belt-like adhesive layer that bonds the outer layer and the inner layer over the entire height range of the Delami bottle is provided, and a part of the inner layer is adhered and fixed to the outer layer by this adhesive layer. Then, there is a type that regulates the deformation deformation mode of the inner layer, and this restriction prevents the inner layer portion from being crushed and deformed in a substantially intimate contact state, thereby preventing the content from being easily poured out. .
このものは、確かに内層部分の略密着状態での潰れ変形を起り難くすることができるのであるが、一つの接着層による内層に対する変形規制が必ずしも充分ではないので、デラミ現象が進行すると、不規則に潰れ変形する箇所が多くなり、このため注出不良が発生すると云う新たな不都合があった。 Although this can certainly prevent the inner layer portion from being crushed and deformed in a substantially tight contact state, the deformation regulation on the inner layer by one adhesive layer is not always sufficient, so if the delamination phenomenon proceeds, There are many places where the parts are crushed and deformed due to the rules, which causes a new inconvenience that poor dispensing occurs.
本出願人はこの不都合を解消するためのブロー成形容器をすでに提案している。（特許文献１参照） The present applicant has already proposed a blow molded container for solving this disadvantage. (See Patent Document 1)
上記特許文献１の容器は、外殻を形成する外層と、内容物を収容する潰れ減容変形自在な内層とを、剥離可能に積層した、有底筒状の胴部の上端に肩部を介して口筒部を連設したボトル状のブロー成形容器であること、外層と内層とを、全高さ範囲に亘って接着する、縦帯状の一つの接着層を設けること、胴部の中心軸に対し、接着層と軸対称位置に、外層の一部で内層の一部を挟み込み状に保持する挟持部を縦突条状に設けること、接着層を避けた外層部分に、吸気孔を開設すること、との構成を備えている。 The container of the above-mentioned patent document 1 has a shoulder on the upper end of a bottomed cylindrical body, in which an outer layer that forms an outer shell and a collapsible and volume-reducible deformable inner layer that accommodates contents are detachably stacked. A bottle-shaped blow-molded container in which a mouth tube portion is continuously provided, a single vertical belt-like adhesive layer that bonds the outer layer and the inner layer over the entire height range, and the central axis of the trunk portion On the other hand, in the axially symmetric position with the adhesive layer, a pinching part that holds a part of the inner layer sandwiched by a part of the outer layer is provided in a vertical ridge shape, and an intake hole is opened in the outer layer part avoiding the adhesive layer It is equipped with the structure to do.
上記特許文献１に記載された容器は、内層の潰れ変形の基本的な方向性を規制することにより、内層の潰れ変形が規則性を持って進行し、これにより内容物の通路が確保し易くなり、デラミ現象の進行に従って内容物の注出が不良となる、と云う不都合の発生を防止することができる優れたものであるが、その内層の一部の挟み込み形態に改良の余地があった。 The container described in Patent Document 1 regulates the basic directionality of the inner layer crushing deformation, so that the inner layer crushing deformation proceeds with regularity, thereby easily ensuring the passage of the contents. However, it is possible to prevent the occurrence of inconvenience that the content is not properly poured out as the delami phenomenon progresses, but there is room for improvement in the sandwiched form of a part of the inner layer. .
本発明は上記した点に鑑みてなされたもので、接着層と対向位置の係止手段が挟持強度をより大きく発揮できて、デラミ現象の進行に関わりなく、最後まで内容物の安定した注出動作を得ることができるという目的をより確実に遂行することが可能なブロー成形容器を提案するものである。 The present invention has been made in view of the above points, and the locking means at the position opposite to the adhesive layer can exert a greater clamping strength, so that the content can be stably dispensed to the end regardless of the progress of the delamination phenomenon. The present invention proposes a blow-molded container that can more reliably achieve the purpose of obtaining an operation.
第１の手段として、以下の通り構成した。即ち、有底筒状の胴部１０より肩部１１を介して口頸部１２を起立した形態をなし、保形性のある外層ｏと、外層ｏ内面に剥離可能に積層した内層ｉとから構成され、外層ｏと内層ｉとを、全高さ範囲に亘って接着する、縦帯状の一つの接着層２０を設け、接着層２０を避けた外層ｏ部分に外気導入孔５０を穿設し、胴部１０の中心軸に対して接着層２０と軸対称位置に、胴部１０内に一端を開口して、内層ｉ及び外層ｏで形成される膨出突部４０を突設したブロー成形容器において、
胴部１０に凹設した凹陥部３０内に上記膨出突部４０を突設し、この膨出突部４０を、基端の円筒状の小径部４０ａの外端から拡径する連結部を経て外面を閉塞された大径部４０ｂを外方へ連設した形態として、膨出突部４０の形成箇所において内層ｉが外層ｏから剥離しないように設けた。
The first means is configured as follows. That is, from the bottomed cylindrical body portion 10, the mouth and neck portion 12 is erected through the shoulder portion 11. From the outer layer o having shape retention and the inner layer i detachably laminated on the inner surface of the outer layer o. A vertical belt-like adhesive layer 20 that is configured and adheres the outer layer o and the inner layer i over the entire height range, and an outside air introduction hole 50 is formed in the outer layer o portion avoiding the adhesive layer 20; A blow-molded container in which one end is opened in the body 10 at an axially symmetric position with respect to the central axis of the body 10 and a bulging protrusion 40 formed by an inner layer i and an outer layer o is provided. In
The bulging protrusion 40 is protruded in the recessed portion 30 provided in the body portion 10, and a connecting portion for expanding the bulging protrusion 40 from the outer end of the cylindrical small-diameter portion 40a at the base end is provided. As a form in which the large-diameter portion 40b whose outer surface is closed is continuously provided outward, the inner layer i is provided so as not to be separated from the outer layer o at the location where the bulging protrusion 40 is formed.
第２の手段として、以下の通り構成した。即ち、前記第１の手段に於いて、膨出突部４０を胴部１０の上部高さ位置に設けた。 The second means is configured as follows. That is, in the first means , the bulging protrusion 40 is provided at the upper height position of the body 10.
第３の手段として、以下の通り構成した。即ち、前記第１の手段に於いて、膨出突部４０を、胴部１０の略中央高さ位置に設けた。 The third means was configured as follows. That is, in the first means , the bulging protrusion 40 is provided at a substantially central height position of the body 10.
第４の手段として、以下の通り構成した。即ち、前記第１の手段に於いて、膨出突部４０を、胴部１０の高さ方向に沿って複数形成した。
The fourth means is configured as follows. That is, in the first means , a plurality of bulging protrusions 40 are formed along the height direction of the body part 10.
本発明によれば、胴部10の中心軸に対して接着層20と軸対称位置に、胴部10内に一端を開口し、基端の小径部40a の外方に外面を閉塞された大径部40b を連設した形態の内層ｉ及び外層ｏで形成される膨出突部40を突設しているので、この部分の内層ｉの外層ｏとの密接性が大きく、収容液の減少により内層ｉが外層ｏより大きくはがれても膨出突部40部分においては両者の充分な係止効果を発揮してその部分において両者が剥がれる等の不都合を極力防止でき、より良好な吐出性を維持できる。 According to the present invention, a large opening having one end opened in the barrel portion 10 and axially symmetric with the adhesive layer 20 with respect to the central axis of the barrel portion 10 and the outer surface closed outside the small diameter portion 40a at the proximal end. Since the bulging protrusion 40 formed by the inner layer i and the outer layer o in a form in which the diameter portion 40b is continuously provided protrudes, the close contact between the inner layer i and the outer layer o in this portion is large, and the amount of stored liquid decreases Even if the inner layer i is peeled off from the outer layer o, the bulging protrusion 40 can exert a sufficient locking effect between the two to prevent inconveniences such as separation of the two as much as possible, and to improve the discharge performance. Can be maintained.
また、内容物の注出に従って、内層ｉの潰れ変形は、軸対称に位置した接着層20と膨出突部40とが不動部分であるので、接着層20と膨出突部40とを位置させた仮想される平面に対して、垂直方向から押し潰される形態で潰れ変形することになり、内層ｉの潰れ変形が規則性を持って進行し、これにより内容物の通路が確保し易くなる点に関しては従前通りである。 Further, as the contents are poured out, the inner layer i is crushed and deformed because the adhesive layer 20 and the bulging protrusion 40 positioned axisymmetrically are immobile parts, so that the adhesive layer 20 and the bulging protrusion 40 are positioned. The imaginary plane is crushed and deformed in the form of being crushed from the vertical direction, and the crushing deformation of the inner layer i proceeds with regularity, thereby making it easy to secure a passage for the contents. The point is the same as before.
また、膨出突部40は、外層ｏの一部で内層ｉの一部を被覆保持するものであるので、割金型構造である容器成形用金型を利用して、簡単に成形することができる。 Further, since the bulging protrusion 40 covers and holds a part of the inner layer i with a part of the outer layer o, it can be easily formed using a container molding die having a split mold structure. Can do.
膨出突部40を、胴部10に凹設した凹陥部30内に突設した場合には、膨出突部40が邪魔にならず、その部分に外力、例えば、胴部10の圧搾時に指が接触したりする等により、膨出突部40に於ける外層ｏと内層ｉを剥離させる力が働く等の不都合を極力防止できる。 When the bulging protrusion 40 is protruded into the recessed portion 30 that is recessed in the body part 10, the bulging protrusion 40 does not get in the way, and external force is applied to that part, for example, when the body part 10 is squeezed It is possible to prevent inconveniences such as a force of peeling the outer layer o and the inner layer i in the bulging protrusion 40 due to contact with a finger or the like as much as possible.
膨出突部40を胴部10の上部高さ位置に設けた場合には、下方部分の胴部10の圧搾が行い易く、その点の取り扱いが容易となる。 When the bulging protrusion 40 is provided at the upper height position of the body portion 10, the lower portion of the body portion 10 can be easily squeezed, and handling of this point is facilitated.
膨出突部40を、胴部10の略中央高さ位置に設けた場合には、膨出突部40が一箇所であっても胴部10内において均整がとれた外層ｏからの内層ｉの剥離が可能となる。 When the bulging projection 40 is provided at a substantially central height position of the trunk portion 10, the inner layer i from the outer layer o that is balanced in the trunk portion 10 even if the bulging projection 40 is at one place. Can be peeled off.
膨出突部40を、胴部10の高さ方向に沿って複数形成した場合には、内層ｉの固定個所が複数設けられるため、胴部10内において更に規則性が向上したより均等な外層ｏからの内層ｉの剥離が可能となる。 When a plurality of the bulging protrusions 40 are formed along the height direction of the body part 10, since a plurality of fixing points of the inner layer i are provided, a more uniform outer layer in which the regularity is further improved in the body part 10 The inner layer i can be peeled from o.
以下、本発明の形態を図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図１乃至図３はブロー成形容器１の一例を示す。ブロー成形容器１は、胴部10より肩部11を介して口頸部12を起立している。また、ブロー成形容器１は、図３に示す如く、保形性を有する圧搾可能な外層ｏと、外層ｏ内面に剥離可能に積層された内層ｉとで構成されており、内層ｉは可撓性を備えている。 1 to 3 show an example of a blow molded container 1. The blow-molded container 1 has a mouth-and-neck portion 12 erected from a trunk portion 10 through a shoulder portion 11. As shown in FIG. 3, the blow-molded container 1 is composed of a squeezable outer layer o having shape retention and an inner layer i that is detachably laminated on the inner surface of the outer layer o. The inner layer i is flexible. It has sex.
また、外層ｏと内層ｉとの間には、縦帯状の接着層20を一本縦設している。接着層20は胴部10の下端より肩部11を介して口頸部12の上端に至る部分にあれば初期の目的を達成するが、本例では成形の都合上胴部底面の中央に至る部分まで形成されている。従って、接着層20としては、全高さ範囲に亘って接着する縦帯状のものであれば良い。 In addition, one vertical belt-like adhesive layer 20 is provided vertically between the outer layer o and the inner layer i. The adhesive layer 20 achieves the initial purpose if it is in the part from the lower end of the body part 10 to the upper end of the mouth-and-neck part 12 through the shoulder part 11, but in this example, it reaches the center of the bottom part of the body part for convenience of molding. Part is formed. Therefore, the adhesive layer 20 may be a vertical belt that adheres over the entire height range.
更に、胴部10の上部には凹陥部30と膨出突部40とを備えている。凹陥部30は、図１乃至図３に示す如く、胴部10の一部を内方へ凹ませた形態のもので、膨出突部40が収納可能であれば、その形状は特に限定されない。膨出突部40は、胴部10の中心軸に対して接着層20と軸対象位置に、胴部10内に一端を開口し、基端の小径部40a の外方に外面を閉塞された大径部40b を連設した形態の内層ｉ及び外層ｏで形成されたもので、凹陥部30内に、凹陥部30より突出しない状態で突設されている。尚、この凹陥部30及び膨出突部40は後述する如く、胴部10上方に設ける場合に限らず、また、その数も１個所に限らず複数個所あっても良い。 Further, a concave portion 30 and a bulging projection 40 are provided on the upper portion of the body portion 10. As shown in FIGS. 1 to 3, the recessed portion 30 has a shape in which a part of the body portion 10 is recessed inward, and the shape of the recessed portion 30 is not particularly limited as long as the bulging protrusion 40 can be accommodated. . The bulging protrusion 40 is open at one end in the body 10 at an axial target position with the adhesive layer 20 with respect to the central axis of the body 10, and the outer surface is closed outside the small-diameter portion 40a at the base end. The large-diameter portion 40b is formed of an inner layer i and an outer layer o in a continuous form, and protrudes into the recessed portion 30 without protruding from the recessed portion 30. As will be described later, the recessed portion 30 and the bulging protrusion 40 are not limited to being provided above the body portion 10, and the number thereof is not limited to one but may be plural.
また、口頸部12の外層ｏ部分には外気導入孔50を穿設している。外気導入孔50は内容液が減少した際に内層ｉが外層ｏから剥離した隙間に外気を導入するためのもので、本例では口頸部12の外層ｏに設けているが、これに限られず、接着層20を形成した部分以外の外層ｏであれば穿設が可能である。 In addition, an outside air introduction hole 50 is formed in the outer layer o of the mouth / neck portion 12. The outside air introduction hole 50 is for introducing outside air into the gap where the inner layer i is peeled off from the outer layer o when the content liquid is reduced. In this example, the outside air introduction hole 50 is provided in the outer layer o of the mouth-and-neck portion 12, but this is not limitative. However, the outer layer o other than the portion where the adhesive layer 20 is formed can be drilled.
上記の如き構成されるブロー成形容器１は、例えば、パリソンを用いて金型内でブロー成形することで形成することができる。 The blow molded container 1 configured as described above can be formed by, for example, blow molding in a mold using a parison.
また、上記の如く構成したブロー成形容器１を使用する場合には、例えば、口頸部12にノズル（図示せず）を装着し、胴部10を圧搾して収容液を吐出することができる。その場合、収容液の減少に伴って、内層ｉが外層ｏから剥離して内層ｉ内が減容され、内層ｉ内では空気等の侵入がない状態で液の保管、吐出が可能となる。また、収容液の減少に伴って、剥離した内層ｉと外層ｏとの間には外気導入孔50より外気が導入される。尚、ノズルに代えてポンプを装着して使用することも当然可能である。 When the blow molded container 1 configured as described above is used, for example, a nozzle (not shown) is attached to the mouth / neck portion 12, and the body portion 10 is squeezed to discharge the stored liquid. . In that case, the inner layer i is peeled off from the outer layer o and the volume of the inner layer i is reduced with a decrease in the stored liquid, so that the liquid can be stored and discharged in the inner layer i without intrusion of air or the like. Further, along with the decrease in the stored liquid, outside air is introduced from the outside air introduction hole 50 between the peeled inner layer i and outer layer o. Of course, it is possible to use a pump instead of the nozzle.
内層ｉの剥離に当たっては、上側から順に潰れ変形して行くが、この内層ｉの潰れ変形は、軸対称に位置した接着層20と膨出突部40とが不動部分であるので、この接着層20と膨出突部40とに規制された状態で行われる。すなわち、内層ｉは、接着層20と膨出突部40とを不動部分としているので、基本的には、この接着層20と膨出突部40とを位置させた仮想される平面に対して、垂直方向から押し潰される形態で潰れ変形することになる。このように、内層ｉの潰れ変形の基本的な方向性を規制することにより、内層ｉの潰れ変形が規則性を持って進行し、これにより内容物の通路が確保し易くなる。しかも、膨出突部40の形状によりこの部分の内層ｉと外層ｏとの剥離強度が大きくなり、液の注出操作でこの部分の内層ｉが外層ｏから剥がれる虞がない。また、膨出突部40が胴部10の上方に位置しているので、膨出突部40部分に接触しないでの胴部10の圧搾が行い易い利点がある。 When the inner layer i is peeled, the inner layer i is crushed and deformed in order from the upper side, but since the inner layer i is crushed and deformed, the adhesive layer 20 and the bulging protrusion 40 located in an axial symmetry are immobile parts. This is performed in a state restricted by 20 and the bulging protrusion 40. That is, since the inner layer i uses the adhesive layer 20 and the bulging protrusion 40 as immovable portions, basically, the inner layer i is relative to a virtual plane on which the adhesive layer 20 and the bulging protrusion 40 are positioned. Then, it will be crushed and deformed in the form of being crushed from the vertical direction. In this way, by restricting the basic direction of the crushing deformation of the inner layer i, the crushing deformation of the inner layer i proceeds with regularity, thereby making it easy to secure a passage for the contents. In addition, the peel strength between the inner layer i and the outer layer o in this portion is increased by the shape of the bulging protrusion 40, and there is no possibility that the inner layer i in this portion is peeled off from the outer layer o by the liquid pouring operation. Further, since the bulging protrusion 40 is positioned above the trunk portion 10, there is an advantage that the trunk portion 10 can be easily squeezed without contacting the bulging protrusion 40 portion.
図４及び図５は他の例を示し、本例では凹陥部30及び膨出突部40を、胴部10の略中央高さ位置に設けた例を示す。この場合には膨出突部40側の内層ｉの剥離状態を上下方向においてより均等に行える。その他の構成及び作用は図１の例と同様であるため、説明を省略する。 4 and 5 show another example, and in this example, an example in which the recessed portion 30 and the bulging protrusion 40 are provided at a substantially central height position of the body portion 10 is shown. In this case, the peeling state of the inner layer i on the bulging protrusion 40 side can be performed more evenly in the vertical direction. Other configurations and operations are the same as those in the example of FIG.
図６及び図７は更に他の例を示し、本例では凹陥部30及び膨出突部40を、胴部10の高さ方向に沿って複数形成した例を示す。この場合には膨出突部40による内層ｉの係止点が複数あるため更に均等な剥離状態を現出する。その他の構成及び作用は図１の例と同様であるため、説明を省略する。 6 and 7 show another example. In this example, a plurality of recessed portions 30 and bulging protrusions 40 are formed along the height direction of the body portion 10. In this case, since there are a plurality of locking points of the inner layer i by the bulging protrusion 40, a more even peeling state appears. Other configurations and operations are the same as those in the example of FIG.
尚、上記各例では膨出突部40を凹陥部30内に突出する例を示したが、凹陥部30を設けなく、胴部10外面に直接膨出突部40を突設することも可能である。また、膨出突部40の形状として、上記例では円筒状の小径部40a 及び円筒状の大径部40b を採用している。具体的には、小径部40a の外側端より外方へ拡がるフランジ状の連結部位を備えた外面閉塞の大径部40b を延設したものであれば良い。また、小径部40a 及び大径部40b を構成する筒部分に内方から外方へ拡がるテーパーが形成されたものであっても良い。 In each of the above examples, an example in which the bulging projection 40 protrudes into the recessed portion 30 is shown, but the bulging projection 40 can be directly projected on the outer surface of the body portion 10 without providing the recessed portion 30. It is. In addition, as the shape of the bulging protrusion 40, a cylindrical small-diameter portion 40a and a cylindrical large-diameter portion 40b are employed in the above example . Specifically, it is only necessary to extend the outer diameter closed large diameter portion 40b having a flange-like connecting portion extending outward from the outer end of the small diameter portion 40a. Further, the cylindrical portion constituting the small diameter portion 40a and the large diameter portion 40b may be formed with a taper extending from the inside to the outside.
１…ブロー成形容器
10…胴部、11…肩部、12…口頸部
ｏ…外層
ｉ…内層
20…接着層、
30…凹陥部
40…膨出突部
40a …小径部、40b …大径部
50…外気導入孔
1 ... Blow molded container
10 ... trunk, 11 ... shoulder, 12 ... mouth and neck o ... outer layer i ... inner layer
20 ... adhesive layer,
30 ... depression
40 ... bulging protrusion
40a… small diameter part, 40b… large diameter part
50… Outside air introduction hole
Claims (4)
胴部（１０）に凹設した凹陥部（３０）内に上記膨出突部（４０）を突設し、この膨出突部（４０）を、基端の円筒状の小径部(４０ａ)の外端から拡径する連結部を経て外面を閉塞された円筒形状の大径部(４０ｂ)を外方へ連設した形態として、膨出突部（４０）の形成箇所において内層（ｉ）が外層（ｏ）から剥離しないように設けたことを特徴とするブロー成形容器。 Formed with the neck and neck (12) standing up from the bottomed cylindrical body (10) through the shoulder (11), peeling off the shape-retaining outer layer (o) and the inner surface of the outer layer (o) A longitudinal belt-like adhesive layer (20) is provided, which is composed of an inner layer (i) that can be laminated, and bonds the outer layer (o) and the inner layer (i) over the entire height range. 20), an outside air introduction hole (50) is formed in the outer layer (o), avoiding the inner layer (10), and in the barrel (10) in an axially symmetric position with the adhesive layer (20) with respect to the central axis of the barrel (10). In the blow-molded container having one end opened to the bulging protrusion (40) formed by the inner layer (i) and the outer layer (o),
The bulging protrusion (40) protrudes into a recess (30) provided in the body (10), and the bulging protrusion (40) is formed into a cylindrical small diameter portion (40a) at the base end. As a form in which a cylindrical large diameter portion (40b) whose outer surface is blocked through a connecting portion that expands from the outer end of the outer surface is continuously connected to the outside , the inner layer (i ) Is provided so as not to peel from the outer layer (o).
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