JP4293352B2 - Composite container - Google Patents

Composite container Download PDF

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Publication number
JP4293352B2
JP4293352B2 JP2003284300A JP2003284300A JP4293352B2 JP 4293352 B2 JP4293352 B2 JP 4293352B2 JP 2003284300 A JP2003284300 A JP 2003284300A JP 2003284300 A JP2003284300 A JP 2003284300A JP 4293352 B2 JP4293352 B2 JP 4293352B2
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layer material
outer layer
container
top wall
embedded
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JP2005047608A (en
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茂雄 飯塚
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected

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  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Packages (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Description

本発明は複合容器に関し、詳しくは、隙間を介して外層材を備えることにより収納液の温度を遮断して持ちやすく、然も外層材のガタツキがなく、容易に成形できるボトルタイプの複合容器に関する。 The present invention relates to a composite container , and more particularly, to a bottle-type composite container that can be easily formed by providing an outer layer material through a gap so that the temperature of the stored liquid is easily cut off and the outer layer material is not loose.

内容物の保温，保冷効果を備え、しかも商品名等の表示を綺麗に施すことができるボトルタイプの容器が知られており（例えば、特許文献１参照）、或いは、ペットボトル等の容器に内容物の保温、保冷効果を付与するためのカバーが提案されている（例えば特許文献２参照）。   There is known a bottle-type container that can keep the contents warm and cool, and can clearly display the product name (for example, see Patent Document 1), or the contents in a container such as a PET bottle. There has been proposed a cover for imparting a warming and cooling effect (see, for example, Patent Document 2).

上記した前者は、ブロー成形された発泡樹脂製のボトルに、合成樹脂フィルムによって形成されたラベルが装着されている。また、後者は、合成樹脂製の糸で編んだ容器の形状大きさに対応して容器を収容し得るカバーである。
特開２００２−８００７４号公報 特開２００２−５３１３４号公報 In the former, a label formed of a synthetic resin film is attached to a blow-molded foamed resin bottle. The latter is a cover that can accommodate a container corresponding to the shape and size of the container knitted with synthetic resin yarn.
Japanese Patent Laid-Open No. 2002-80074 JP 2002-53134 A

本発明は高温或いは低温の内容物を収納した場合でも持ちやすく、しかも容器本体は胴部を必要に応じて極力薄く形成することができて経済的であり、また、外層材底部を遮蔽すれば収納物の充分な断熱性を付与することができ、製造も極めて簡単な合成樹脂製の複合容器及びその製造方法を提案するものである。   The present invention is easy to hold even when high-temperature or low-temperature contents are stored, and the container body is economical because the body can be formed as thin as possible, and the bottom of the outer layer material is shielded. The present invention proposes a composite container made of a synthetic resin and a method of manufacturing the same, which can provide sufficient heat insulation of stored items and is extremely easy to manufacture.

第１の手段として、以下の通り構成した。即ち、筒状の胴部４上端縁より肩部５を介して口頸部６を起立した合成樹脂製の容器本体２と、上記胴部４外周にリブ７の介在により隙間８をあけて周壁９を嵌合させるとともに、該周壁９上端縁より内方へフランジ状頂壁10を延設し、該頂壁10の内周縁部を上記口頸部外周基端部にブロー成形により埋設固定した合成樹脂製の外層材３とを備えてなることを特徴とする覆合容器として構成した。 The first means is configured as follows. That is, a synthetic resin container main body 2 in which a mouth and neck part 6 is erected from the upper end edge of the cylindrical body part 4 via a shoulder part 5 and a peripheral wall with a gap 8 formed between the outer periphery of the body part 4 by the rib 7. 9 is fitted, and a flange-like top wall 10 is extended inwardly from the upper edge of the peripheral wall 9, and the inner peripheral edge of the top wall 10 is embedded and fixed by blow molding at the outer peripheral base end of the mouth neck. It was comprised as a covering container characterized by including the outer layer material 3 made from a synthetic resin.

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、上記リブ７が、外層材３周方面に突設したリブである。 The second means is configured as follows. That is, at the first unit, the ribs 7, Ru ribs der projecting from the outer layer material 3 laps direction.

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、上記リブ７が、容器本体２外周面に突設したリブである。 The third means was configured as follows. That is, at the first unit, the ribs 7, Ru ribs der projecting from the container body 2 the outer peripheral surface.

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、周方向複数の突起13a を突設することにより構成された回転防止用の埋設突部13を頂壁10部分に設け、該埋設突部13を含む上記頂壁内周縁部を埋設固定してなる。 The fourth means is configured as follows. That is, in the first means, a rotation preventing embedded projection 13 constituted by protruding a plurality of circumferential projections 13a is provided on the top wall 10 portion, and includes the embedded projection 13 described above. ing is embedded fixing the Itadakikabenai periphery.

第５の手段として、以下の通り構成した。即ち、周壁９上端縁より内方へフランジ状の頂壁10を延設し且つ内周面にリブ７を突設した外層材３を予め形成するとともに、その外層材３を成形型12内に装着し、次いで加熱したパリソン14の胴部・肩部形成部16を外層材３内に挿入した後空気を吹き込んで外層材内に胴部４及び肩部５を膨張形成するとともに、口頸部形成部17外周に突設したフランジ11と膨張した肩部内周縁部とで外層材頂壁10内周縁部を埋設固定したことを特徴とする複合容器の製造方法として構成した。 The fifth means is configured as follows. That is, an outer layer material 3 is formed in advance by extending a flange-shaped top wall 10 inward from the upper edge of the peripheral wall 9 and projecting ribs 7 on the inner peripheral surface. Next, the body / shoulder forming portion 16 of the heated parison 14 is inserted into the outer layer material 3 and then blown into the outer layer material 3 to expand and form the body portion 4 and the shoulder portion 5 in the outer layer material. The composite container manufacturing method is characterized in that the inner peripheral edge portion of the outer layer material top wall 10 is embedded and fixed by the flange 11 protruding from the outer periphery of the forming portion 17 and the expanded inner peripheral edge portion of the shoulder portion.

本発明の複合容器は容器本体２と外層材３との間に隙間を設けているため、高温或いは低温の収納物を容器本体内に収納した場合でも持ちやすく、また、外層材の頂壁10内周縁部を口頸部６の外周縁部に埋設固定しているため、外層材３が容器本体２に対して不都合に回転してしまうのを防止でき、例えば、外層材３をもってキャップを螺脱する際に容器本体２がキャップとともに回転して螺脱が困難となる様な不都合を防止できるものである。また、外層材３に保形性或いは剛性を付与しておけば、容器本体２の胴部４は極めて薄く自立性のないものであっても全体として自立性のある容器が得られ、外層材の存在にも拘わらず全体の樹脂量をそれ程増加することなく製造できる利点もある。   Since the composite container of the present invention has a gap between the container body 2 and the outer layer material 3, it can be easily held even when a high-temperature or low-temperature stored item is stored in the container body, and the top wall 10 of the outer layer material 10 Since the inner peripheral edge portion is embedded and fixed in the outer peripheral edge portion of the mouth-and-neck portion 6, it is possible to prevent the outer layer material 3 from rotating inadvertently with respect to the container body 2. For example, the cap is screwed with the outer layer material 3. It is possible to prevent such inconvenience that the container main body 2 rotates with the cap and becomes difficult to unscrew when removed. Further, if shape retention or rigidity is imparted to the outer layer material 3, even if the body portion 4 of the container body 2 is extremely thin and has no self-supporting property, an overall self-supporting container can be obtained. In spite of the presence of this, there is also an advantage that it can be produced without increasing the total resin amount so much.

また、上記外層材３内周面にリブ７を突設したものにあっては、各リブ７間に胴部４が若干食い込む形で膨張形成されるため、上記頂壁10内周縁部を埋設固定した構成に加えて上記不都合な回転を更に確実に防止できるものである。   Further, in the case where ribs 7 are provided projecting on the inner peripheral surface of the outer layer material 3, the inner peripheral edge of the top wall 10 is buried because the body 4 is inflated between the ribs 7. In addition to the fixed configuration, the inconvenient rotation can be prevented more reliably.

また、上記頂壁10部分に回転防止用の埋設突部13を設け、該埋設突部13を含む上記頂壁内周縁部を埋設固定してなるものにあっては、埋設部分の接触面積が広くなる等の理由で同様に上記不都合な回転を更に確実に防止できるものである。   Further, in the case where the top wall 10 portion is provided with an embedded protrusion 13 for preventing rotation and the inner peripheral edge of the top wall including the embedded protrusion 13 is embedded and fixed, the contact area of the embedded portion is Similarly, the above-mentioned inconvenient rotation can be prevented more reliably for reasons such as widening.

また、本発明の製造方法によれば、フランジ11と膨張した肩部５内周縁部とで外層材頂壁10の内周縁部を埋設固定するため、相互の回転を確実に防止できるとともに、膨張した胴部４は予めセットされていた外層材３と比較して収縮が大きいため、例え胴部に膨張しすぎの誤差が発生しても冷却後最終的に両者間に確実に必要な隙間８を形成することができるものである。   Further, according to the manufacturing method of the present invention, the inner peripheral edge of the outer layer material top wall 10 is embedded and fixed by the flange 11 and the expanded inner peripheral edge of the shoulder 5, so that mutual rotation can be reliably prevented and expansion Since the barrel portion 4 has a larger shrinkage than the outer layer material 3 set in advance, even if an error of excessive expansion occurs in the barrel portion, the necessary gap 8 is finally surely provided between the two after cooling. Can be formed.

本発明の複合容器１は、容器本体２と外層材３とから構成している。   The composite container 1 of the present invention is composed of a container body 2 and an outer layer material 3.

容器本体２は合成樹脂により形成されたもので、有底筒状の胴部４上端より肩部５を介して口頸部６を起立したボトルタイプのものである。   The container body 2 is formed of a synthetic resin, and is of a bottle type in which the neck 6 is erected from the upper end of the bottomed cylindrical body 4 via the shoulder 5.

外層材３も合成樹脂により形成されたもので、上記容器本体胴部４外周にリブ７の介在により隙間８をあけて周壁９を嵌合させるとともに、該周壁９上端縁より内方へフランジ状の頂壁10を延設し、該頂壁10の内周縁部を上記口頸部６外周縁部に埋設固定している。   The outer layer material 3 is also made of a synthetic resin. The outer peripheral material 3 is fitted with a peripheral wall 9 with a gap 8 interposed between the outer periphery of the container main body 4 by the ribs 7 and is flanged inwardly from the upper edge of the peripheral wall 9. The top wall 10 is extended, and the inner peripheral edge of the top wall 10 is embedded and fixed to the outer peripheral edge of the mouth neck 6.

上記リブ７は、図１，図６或いは図９の実施例の如く、外層材３の周壁９内周面に突設しても、図７に示す実施例の如く、容器本体２の外周面に突設しても良い。リブ７の数は容器本体胴部４と外層材３との間に隙間８を生じさせるのを主目的とし、また、外層材３より突設する場合には、外層材３が容器体に対して回転するのを防止する役割も果たす。その本数或いは配置等はとくに限定されないが、例えば、図示例の如き縦リブの場合に上記目的を達成するためには四本以上あることが望ましく、その長さも図示例の如く胴部４外周と外層材周壁９の内周との対向部位全丈に亘ものが好ましく採用できるが、短く構成しても所期の目的を達成出来る。また、その配置は図示例の如く縦リブ形態のものに限らず、傾斜したものや横リブ或いはその他の異形リブを採用できる。   Even if the rib 7 protrudes from the inner peripheral surface of the peripheral wall 9 of the outer layer material 3 as in the embodiment of FIG. 1, FIG. 6 or FIG. 9, the outer peripheral surface of the container body 2 as in the embodiment shown in FIG. You may project it. The main purpose of the number of ribs 7 is to create a gap 8 between the container main body 4 and the outer layer material 3, and when projecting from the outer layer material 3, the outer layer material 3 is in contact with the container body. It also plays a role in preventing rotation. The number or arrangement thereof is not particularly limited. For example, in the case of a longitudinal rib as shown in the drawing, it is desirable that there are four or more in order to achieve the above-mentioned purpose, and the length thereof is also the outer periphery of the body 4 as shown in the drawing. Although the thing covering the full length of the opposing part with the inner periphery of the outer-layer material surrounding wall 9 can be employ | adopted preferably, even if it comprises short, the intended purpose can be achieved. Further, the arrangement is not limited to the vertical rib shape as shown in the drawing, and an inclined one, a horizontal rib, or other irregular ribs can be adopted.

また、外層材頂壁10の内周縁部を口頸部６外周部に埋設固定した形態は種々採用できるが、例えば、図１の実施例の如く、外層材頂壁10の内周縁部を容器本体口頸部６の外周に突設したフランジ11と容器本体２の肩部５内周縁部とで挟持させて埋設固定する。その際図１，図７或いは図９の実施例の如くその頂壁10部分に回転防止用の埋設突部13を突設してもよく、また、図６の実施例の如くフラットな縁部をそのまま挟持させて埋設固定しても良い。尚、埋設突部13を設けた場合にはフランジを設けなくても良い。   Various forms of embedding and fixing the inner peripheral edge of the outer layer material top wall 10 to the outer periphery of the mouth neck 6 can be employed. For example, as shown in the embodiment of FIG. The flange 11 protruding from the outer periphery of the main body neck 6 and the inner peripheral edge of the shoulder 5 of the container body 2 are sandwiched and fixed. At that time, an embedded protrusion 13 for preventing rotation may be provided on the top wall 10 as shown in FIG. 1, FIG. 7 or FIG. 9, and a flat edge as shown in FIG. It is possible to embed and fix it as it is. When the embedded protrusion 13 is provided, the flange need not be provided.

本発明複合容器１は、上記外層材頂壁10の内周縁部を上記の如く埋設固定しているため、外層材３が容器本体２に対して回転することを防止でき、例えば、外層材３を掴んで口頸部６に螺着したキャップを螺脱した際に容器本体２が外層材３に対して回転してしまうという様な不都合を防止できるものであるが、上記回転防止用の埋設突部13を突設することにより、埋設部分の接触面積がより大きくなる等の理由で上記不都合をより確実に防止できる。埋設突部13は筒状に突出したものであっても充分その効果は発揮するが、図１の実施例の如く周方向複数の突起13a を突設することにより構成された埋設突部13の場合には、各突起13a 間に容器本体肩部５の内周縁部が食い込んで更に確実な回転の防止を図れる。また、埋設突部は図示例の如く頂壁10内周縁部より下方へ突設したものに限らず、内周縁部より内方へ突設したものであって良く、或いは、内周縁部でない頂壁10下面より突設しても良い。   Since the composite container 1 of the present invention has the inner peripheral edge portion of the outer layer material top wall 10 embedded and fixed as described above, the outer layer material 3 can be prevented from rotating with respect to the container body 2. The container body 2 can be prevented from rotating with respect to the outer layer material 3 when the cap screwed on the mouth neck 6 is unscrewed. Protruding the protrusion 13 can more reliably prevent the above inconvenience for the reason that the contact area of the embedded portion becomes larger. Even if the embedded protrusion 13 protrudes in a cylindrical shape, the effect is sufficiently exhibited. However, as shown in the embodiment of FIG. 1, the embedded protrusion 13 is formed by protruding a plurality of protrusions 13a in the circumferential direction. In this case, the inner peripheral edge of the container main body shoulder 5 bites in between the protrusions 13a, so that more reliable rotation can be prevented. Further, the embedded protrusions are not limited to those projecting downward from the inner peripheral edge of the top wall 10 as in the illustrated example, but may be those projecting inward from the inner peripheral edge, or may not be the inner peripheral edge. You may project from the lower surface of the wall 10.

上記の如き複合容器１を形成する方法として、図３に示す如く、予め所定形状に射出成形等の方法により形成した外層材３を成形型12内の所定位置に装着する。図に示す外層材３は、周壁９上端縁より内方へフランジ状の頂壁10を延設するとともに、頂壁10内周縁より下方へ、周方向多数の突起13a を突設して構成した回転防止用の埋設突部13を突設している。また、内周面に等間隔に複数のリブ７を縦設している。   As a method of forming the composite container 1 as described above, as shown in FIG. 3, an outer layer material 3 formed in advance by a method such as injection molding or the like in a predetermined shape is mounted at a predetermined position in the mold 12. The outer layer material 3 shown in the figure has a flange-like top wall 10 extending inwardly from the upper edge of the peripheral wall 9 and a number of peripheral protrusions 13a protruding downward from the inner peripheral edge of the top wall 10. An embedded protrusion 13 is provided for preventing rotation. Further, a plurality of ribs 7 are provided vertically at equal intervals on the inner peripheral surface.

また、別に射出成形等の方法により所定形状に形成したパリソン14を用意してそのブロー成形部分をヒーター15等の加熱手段により加熱する。図に示すパリソン14は、有底筒状をなす胴部・肩部形成部16の上端より上方へ筒状の口頸部形成部17を延設し、口頸部形成部17の外周下部には外層材頂壁10を埋設するための上記フランジ11を突設し、また、その上方には螺条18を周設している。   Further, a parison 14 formed in a predetermined shape by another method such as injection molding is prepared, and the blow-molded portion is heated by a heating means such as a heater 15. The parison 14 shown in the figure has a cylindrical mouth / neck forming part 17 extending upward from the upper end of the body / shoulder forming part 16 having a bottomed cylindrical shape, and is formed on the lower outer periphery of the mouth / neck forming part 17. The flange 11 for embedding the outer layer material top wall 10 protrudes, and a screw 18 is provided above the flange 11.

次いで、図４に示す如く、加熱したパリソン14を成形型12内に設置した外層材３内にその胴部・肩部形成部16を垂下させて固定し、パリソン14上端開口からノズル19を介してエアーを吹き込んで胴部・肩部形成部16を膨張させ、図５に示す如く胴部４を形成して複合容器１を形成する。この際埋設突部13周囲に膨張した肩部５とフランジ11とで外層材頂壁10の内周縁部をしっかりと固定する。一方、各リブ７間にも膨張した胴部が食い込むが、成形後の冷却段階で胴部４に収縮が生じるため、胴部４と外層材周壁９との間には所期の目的を達成するために充分な隙間８が生じる。また、この場合、各リブ７は容器本体胴部に食い込む形で連結されるため、この部分でも両者の相互の回転防止を図れる。   Next, as shown in FIG. 4, the body / shoulder forming portion 16 is suspended and fixed in the outer layer material 3 in which the heated parison 14 is installed in the mold 12, and the parison 14 is opened from the upper end opening of the parison 14 through the nozzle 19. Then, air is blown to inflate the body / shoulder forming portion 16 to form the body 4 as shown in FIG. At this time, the inner peripheral edge portion of the outer layer material top wall 10 is firmly fixed by the shoulder portion 5 and the flange 11 which are expanded around the embedded protrusion 13. On the other hand, the expanded body part also bites between the ribs 7, but the body part 4 contracts in the cooling stage after molding, so that the intended purpose is achieved between the body part 4 and the outer layer material peripheral wall 9. Sufficient gap 8 is generated for this purpose. In this case, the ribs 7 are connected so as to bite into the body of the container main body, so that it is possible to prevent mutual rotation at this portion.

尚、本発明の製造方法として、上記方法に於いて、パリソン14の胴部・肩部形成部16上部の肩部を形成する部分を薄肉に調整して外層材頂壁10（埋設突部13を含む）とのより確実な密着性を図っても良い。また、本発明の複合容器を製造する方法としては必ずしもこの方法に限らず、例えば、延伸ブロー成形を応用しても製造することができる。 As a manufacturing method of the present invention, in the above-described method, the top portion of the outer layer material 10 (embedded protrusion 13) is adjusted by thinning the portion forming the upper portion of the body / shoulder forming portion 16 of the parison 14. It is also possible to achieve more reliable adhesion with the Further, as a method for producing the composite container of the present invention is not necessarily limited to this method, for example, Ru can also be produced by applying the stretch blow molding.

また、本発明複合容器１は、図６に示す如く、外層材３の底部開口を閉塞する底板20を設けても良い。この底板20を設けることにより収納物の保温性をより向上することができる。底板20の材質は合成樹脂が好ましく使用できるがその他の材質であっても良い。またその固定方法は、接着、溶着、嵌合等の適宜固定方法を採用できる。   Further, the composite container 1 of the present invention may be provided with a bottom plate 20 for closing the bottom opening of the outer layer material 3 as shown in FIG. By providing the bottom plate 20, the heat retaining property of the stored item can be further improved. A synthetic resin is preferably used as the material of the bottom plate 20, but other materials may be used. Moreover, the fixing method can employ | adopt fixing methods, such as adhesion | attachment, welding, and fitting suitably.

図７は容器本体２の胴部外周に上記リブ７を突設した例を示す。この場合、図８に示す如く、リブのない外層材３と、胴部・肩部形成部16外周に周方向複数のリブ７を縦設したパリソン14を用いて上記と同様の方法で形成することができる。この場合にはリブ７による回転防止効果は極めて少なくなるため、上記埋設突部13を外層材３に設けるとより好ましい。   FIG. 7 shows an example in which the rib 7 projects from the outer periphery of the body portion of the container body 2. In this case, as shown in FIG. 8, the outer layer material 3 without ribs and the parison 14 in which a plurality of circumferential ribs 7 are provided vertically on the outer periphery of the body / shoulder forming portion 16 are formed by the same method as described above. be able to. In this case, the effect of preventing the rotation by the ribs 7 is extremely reduced, and therefore it is more preferable to provide the embedded protrusion 13 on the outer layer material 3.

図９は容器本体２の胴部４が外層材３の下方へ突出した例を示す。この場合には、所定形状の成形型の上部に外層材３をセットして上記と同様に形成することができる。   FIG. 9 shows an example in which the body 4 of the container body 2 protrudes downward from the outer layer material 3. In this case, the outer layer material 3 can be set on the upper part of a mold having a predetermined shape and formed in the same manner as described above.

本発明複合容器の縦断面図である。（実施例１）It is a longitudinal cross-sectional view of this invention composite container. Example 1 同容器のＡ−Ａ線に沿う横断面図である。（実施例１）It is a cross-sectional view which follows the AA line of the container. Example 1 同容器を製造する方法を説明する説明図である。（実施例１）It is explanatory drawing explaining the method of manufacturing the container. Example 1 同容器を製造する方法を説明する説明図である。（実施例１）It is explanatory drawing explaining the method of manufacturing the container. Example 1 同容器を製造する方法を説明する説明図である。（実施例１）It is explanatory drawing explaining the method of manufacturing the container. Example 1 本発明複合容器の縦断面図である。（実施例２）It is a longitudinal cross-sectional view of this invention composite container. (Example 2) 本発明複合容器の縦断面図である。（実施例３）It is a longitudinal cross-sectional view of this invention composite container. (Example 3) 同容器を成形する外層材及びパリソンを示す半断面図である。（実施例３）It is a half cross-sectional view showing an outer layer material and a parison for molding the container. (Example 3) 本発明複合容器の縦断面図である。（実施例４）It is a longitudinal cross-sectional view of this invention composite container. (Example 4)

符号の説明Explanation of symbols

２…容器本体，３…外層材，４…胴部，５…肩部，６…口頸部，７…リブ，
８…隙間，９…周壁，10…頂壁，11…フランジ，13…埋設突部，14…パリソン，
16…胴部・肩部形成部、17…口頸部形成部 2 ... container body, 3 ... outer layer material, 4 ... trunk, 5 ... shoulder, 6 ... mouth and neck, 7 ... rib,
8 ... Gap, 9 ... Surrounding wall, 10 ... Top wall, 11 ... Flange, 13 ... Embedded protrusion, 14 ... Parison,
16 ... trunk / shoulder forming part, 17 ... mouth / neck forming part

Claims (3)

筒状の胴部４上端縁より肩部５を介して口頸部６を起立した合成樹脂製の容器本体２と、上記胴部４外周にリブ７の介在により隙間８をあけて周壁９を嵌合させるとともに、該周壁９上端縁より内方へフランジ状頂壁10を延設し、該頂壁10の内周縁部を上記口頸部外周基端部にブロー成形により埋設固定した合成樹脂製の外層材３とを備え、周方向複数の突起13a を突設することにより構成された回転防止用の埋設突部13を頂壁10部分に設け、該埋設突部13を含む上記頂壁内周縁部を埋設固定してなることを特徴とする複合容器。 A synthetic resin container main body 2 with the neck 6 raised from the upper end edge of the cylindrical body 4 via the shoulder 5, and a peripheral wall 9 with a gap 8 between the outer periphery of the body 4 and the rib 7. A synthetic resin in which a flange-like top wall 10 is extended inward from the upper end edge of the peripheral wall 9 and the inner peripheral edge of the top wall 10 is embedded and fixed to the base end of the outer periphery of the neck and neck by blow molding. The outer wall member 3 is provided with a rotation-preventing embedded projection 13 formed by projecting a plurality of circumferential projections 13a on the top wall 10, and the top wall including the embedded projection 13 is provided. A composite container comprising an inner peripheral portion embedded and fixed . 上記リブ７が、外層材３周方面に突設したリブである請求項１記載の複合容器。 The composite container according to claim 1, wherein the ribs 7 are ribs projecting from the circumferential surface of the outer layer material 3. 上記リブ７が、容器本体２外周面に突設したリブである請求項１記載の複合容器。 The composite container according to claim 1, wherein the rib is a rib projecting from the outer peripheral surface of the container body 2.
JP2003284300A 2003-07-31 2003-07-31 Composite container Expired - Lifetime JP4293352B2 (en)

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