JP5463721B2

JP5463721B2 - Packaging container manufacturing method

Info

Publication number: JP5463721B2
Application number: JP2009104376A
Authority: JP
Inventors: 剛史齋藤; 卓寺山; 規行佐々木; 雅士後藤; 大司竹内; 豊晃内藤
Original assignee: Toppan Inc
Current assignee: Toppan Inc
Priority date: 2008-04-24
Filing date: 2009-04-22
Publication date: 2014-04-09
Anticipated expiration: 2029-04-22
Also published as: JP2009279931A

Description

本発明は、包装容器の製造方法に関し、より特定的には、筒形状の容器本体の開口部に嵌め込まれた漏斗パーツとを備える包装容器の製造方法に関するものである。 The present invention relates to a method for manufacturing a packaging container, and more particularly to a method for manufacturing a packaging container including a funnel part fitted into an opening of a cylindrical container body.

インスタントコーヒー等の粉末状の食品は、保存時の密閉性を保持できるように、一般に、キャップ付き瓶のような密閉性の高い包装容器に充填した状態で販売される。また、内容物を再充填して保存容器を再利用する目的で、内容物を簡易に包装した詰め替え用パッケージも知られている。このような詰め替え用パッケージの包装容器としては、例えばパウチやガゼット袋等が知られているが、近年では、省資源化や廃棄の容易性の面から、紙を主体とする材料で作製したカップ状の包装容器（以下、「カップ容器」という）が好まれる場合がある。 In general, powdered food products such as instant coffee are sold in a state of being filled in a highly sealed packaging container such as a bottle with a cap so that the hermeticity during storage can be maintained. There is also known a refill package in which the contents are simply packaged for the purpose of refilling the contents and reusing the storage container. For example, pouches and gusset bags are known as packaging containers for such refill packages, but in recent years, cups made of paper-based materials have been used from the viewpoint of resource saving and ease of disposal. In some cases, a shaped packaging container (hereinafter referred to as a “cup container”) is preferred.

また、特許文献１〜３には、軽量で廃棄が容易な紙製のカップ容器を補強するために、カップ容器の開口部に樹脂製の補強リングを取り付けた構成が記載されている。 Patent Documents 1 to 3 describe a configuration in which a resin-made reinforcing ring is attached to an opening of a cup container in order to reinforce a lightweight and easily disposable paper cup container.

特公昭６３−２４４６４号公報Japanese Examined Patent Publication No. 63-24464 特開平８−５８７６４号公報JP-A-8-58764 特開２００２−２６４９１８号公報JP 2002-264918 A 特許第２８９５５５６号公報Japanese Patent No. 2895556

詰め替え用パッケージとしてカップ容器を用いた場合、保存容器への内容物の再充填は、例えば、開封したカップ容器の開口部を保存容器の開口部に宛がい、内容物を徐々に保存容器内へと流し込むことによって行う。しかしながら、この詰め替え作業時には、内容物がこぼれて手や周囲を汚してしまう場合があり、使い勝手が良いとは言えなかった。 When a cup container is used as a refill package, refilling of the contents into the storage container is performed by, for example, opening the opened cup container to the opening of the storage container and gradually moving the contents into the storage container. And do by pouring. However, at the time of this refilling work, the contents may spill out and stain the hands and surroundings, so it cannot be said that it is convenient.

そこで、詰め替え用パッケージを構成するカップ容器に、内容物の詰め替えをしやすくするための何らかの部品を設けることが考えられる。この場合、カップ容器とこれに取り付ける部品の形状や大きさに応じた最適な取り付け方法が求められる。 Therefore, it is conceivable to provide some parts for facilitating the refilling of the contents in the cup container constituting the refill package. In this case, the most suitable attachment method according to the shape and size of the cup container and the parts attached to the cup container is required.

それ故に、本発明は、他の容器への内容物の詰め替えを容易に行うことができ、かつ、廃棄が容易に行える包装容器を効率的に製造できる製造方法を提供することを目的とする。 Therefore, an object of the present invention is to provide a production method capable of efficiently producing a packaging container that can be easily refilled with contents in another container and can be easily discarded.

本発明は、内容物を他の容器に移し替えるために用いられ、開放端と底部と側壁とを有する筒形状の容器本体と、開放端に向かって径が狭まる漏斗及び漏斗の外面を取り囲む筒形状の側壁を含む漏斗パーツとを備える包装容器の製造方法に関するものである。 The present invention is used for transferring contents to another container, and has a cylindrical container body having an open end, a bottom portion, and a side wall, a funnel whose diameter is narrowed toward the open end, and a tube surrounding the outer surface of the funnel. The present invention relates to a method of manufacturing a packaging container including a funnel part including a side wall having a shape.

本発明に係る製造方法では、最内面に設けられた熱可塑性樹脂層と、熱可塑性樹脂層より外方側に設けられた金属層とを有する容器本体に漏斗パーツを挿入し、漏斗パーツの側壁と包装容器の側壁との重なり部分との間に所定の隙間を空けてコイルを配置し、漏斗パーツの側壁を包装容器の側壁に押圧しながら、コイルに高周波電流を供給して金属層の一部を誘電加熱し、熱可塑性樹脂層と漏斗パーツの側壁とを溶着させる。 In the manufacturing method according to the present invention, a funnel part is inserted into a container body having a thermoplastic resin layer provided on the innermost surface and a metal layer provided on the outer side of the thermoplastic resin layer, and the side wall of the funnel part The coil is arranged with a predetermined gap between the side wall and the side wall of the packaging container, and a high frequency current is supplied to the coil while pressing the side wall of the funnel part against the side wall of the packaging container. The part is dielectrically heated to weld the thermoplastic resin layer and the side wall of the funnel part.

あるいは、最内面に熱可塑性樹脂層を有する容器本体に漏斗パーツを挿入し、漏斗パーツの側壁と包装容器の側壁との重なり部分に沿って超音波ホーンの端面を当接させ、漏斗パーツの側壁を包装容器の側壁に押圧しながら、超音波ホーンを発振させて、熱可塑性樹脂層と漏斗パーツの側壁とを溶着させる。 Alternatively, the funnel part is inserted into the container body having the thermoplastic resin layer on the innermost surface, the end face of the ultrasonic horn is brought into contact with the overlapping part of the side wall of the funnel part and the side wall of the packaging container, and the side wall of the funnel part While pressing on the side wall of the packaging container, the ultrasonic horn is oscillated to weld the thermoplastic resin layer and the side wall of the funnel part.

本発明によれば、高周波溶着または超音波溶着を利用するため、容器本体内面の熱可塑性樹脂層を介して、容器本体と漏斗パーツとを高速かつ容易に接合することができる。 According to the present invention, since the high frequency welding or the ultrasonic welding is used, the container main body and the funnel part can be joined at high speed and easily via the thermoplastic resin layer on the inner surface of the container main body.

本発明に係るパッケージの概略構成を示す斜視図The perspective view which shows schematic structure of the package which concerns on this invention 図１に示されるパッケージの分解斜視図1 is an exploded perspective view of the package shown in FIG. 図１に示されるＩＩＩ−ＩＩＩラインの断面図Sectional view of the III-III line shown in FIG. 図２に示されるメンブレンの平面図Plan view of the membrane shown in FIG. 図４に示されるＶ−Ｖラインの断面図Sectional drawing of the VV line shown by FIG. 本発明に係るパッケージの使用状態を示す斜視図The perspective view which shows the use condition of the package which concerns on this invention 図６に示されるＶＩＩ−ＶＩＩラインの断面図Sectional drawing of the VII-VII line shown by FIG. 本発明の第１の実施形態に係る製造方法で使用される高周波溶着装置の概略構成を示す図The figure which shows schematic structure of the high frequency welding apparatus used with the manufacturing method which concerns on the 1st Embodiment of this invention. 図８に示されるＡ₅−Ａ₅’ラインから見た図View from A ₅ -A ₅ 'line shown in FIG. 8 図９に示されるＢ₅−Ｂ₅’ラインの断面図Sectional view of B ₅ -B ₅ 'line shown in FIG. 本発明の第１の実施形態に係る製造方法の一工程を説明するための断面図Sectional drawing for demonstrating 1 process of the manufacturing method which concerns on the 1st Embodiment of this invention 図１１に示されるＣ₅部分の拡大図Enlarged view of a C ₅ portion shown in FIG. 11 図１１に続く工程を説明するための断面図Sectional drawing for demonstrating the process following FIG. 図１３に続く工程を説明するための断面図Sectional drawing for demonstrating the process following FIG. 図１４に続く工程を説明するための断面図Sectional drawing for demonstrating the process following FIG. 漏斗パーツと容器本体の溶着箇所を示す断面図Sectional view showing the welding location of the funnel parts and the container body 本発明の第２の実施形態に係る製造方法を説明するための模式図The schematic diagram for demonstrating the manufacturing method which concerns on the 2nd Embodiment of this invention. 図１７に示されるＤ₅−Ｄ₅’ラインの断面図Sectional view of D ₅ -D ₅ 'line shown in FIG. 17 本発明の第３の実施形態に係る製造方法を説明するための図The figure for demonstrating the manufacturing method which concerns on the 3rd Embodiment of this invention. 図１９に示されるＥ₅−Ｅ₅’ラインの断面図FIG. 19 is a sectional view taken along the line E ₅ -E ₅ ′ shown in FIG. 本発明の第４の実施形態に係る製造方法を説明するための模式図The schematic diagram for demonstrating the manufacturing method which concerns on the 4th Embodiment of this invention.

（基本構成）
まず、図１〜７を参照しながら、本発明に係るパッケージの基本的な構成を説明する。 (Basic configuration)
First, a basic configuration of a package according to the present invention will be described with reference to FIGS.

図１は、本発明の第１の実施形態に係るパッケージの概略構成を示す斜視図であり、図２は、図１に示されるパッケージの分解斜視図である。また、図３は、図１に示されるＩＩＩ−ＩＩＩラインの断面図である。 FIG. 1 is a perspective view showing a schematic configuration of a package according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of the package shown in FIG. FIG. 3 is a cross-sectional view taken along line III-III shown in FIG.

パッケージ１は、粉粒状または液状の材料を包装し、他の保存容器に内容物を再充填するための詰め替え用パッケージとして使用されるものであり、包装容器２と、包装容器２の内部に充填される内容物５と、包装容器２の開放端１１を封止するメンブレン３とを備える。更に、包装容器２には、メンブレン３を保護するために、高密度ポリエチレン（ＨＤＰＥ）やポリプロピレン（ＰＰ）等で形成したオーバーキャップ４が取り付けられている。内容物５は、流動性を有するものであれば特に限定されず、本発明に係る包装容器２は粉状、粒状、液状等の様々な材料に適用できる。 The package 1 is used as a refill package for packaging powdery or liquid materials and refilling the contents into other storage containers. The packaging container 2 and the inside of the packaging container 2 are filled. And a membrane 3 for sealing the open end 11 of the packaging container 2. Furthermore, an overcap 4 formed of high density polyethylene (HDPE), polypropylene (PP) or the like is attached to the packaging container 2 in order to protect the membrane 3. The content 5 is not particularly limited as long as it has fluidity, and the packaging container 2 according to the present invention can be applied to various materials such as powder, granule, and liquid.

包装容器２は、一端が開放された筒形状の容器本体１０と、容器本体１０の内部に収納された漏斗２０を含む漏斗パーツ８とを備える。 The packaging container 2 includes a cylindrical container body 10 with one end opened, and a funnel part 8 including a funnel 20 housed inside the container body 10.

容器本体１０は、側壁１７と底部１６と開放端１１とを有する。本実施形態では、容器本体１０は、矩形形状のシート材料を丸めて部分的に重ね合わせ、重なり部分を貼り合わせることによって筒状に形成されている。容器本体１０の底部１８は、円形状の底板１９と、底板１９の外周部を挟み込んで保持する折り返し部１８とによって構成されている。一方、容器本体１０の開放端１１には、側壁１７の一部を外方に折り曲げて環状に巻き込むことによって、カーリング１２が形成されている。 The container body 10 has a side wall 17, a bottom portion 16, and an open end 11. In this embodiment, the container main body 10 is formed in a cylindrical shape by rounding rectangular sheet materials, partially overlapping them, and bonding the overlapping portions. The bottom portion 18 of the container body 10 includes a circular bottom plate 19 and a folded portion 18 that sandwiches and holds the outer peripheral portion of the bottom plate 19. On the other hand, a curling 12 is formed at the open end 11 of the container body 10 by bending a part of the side wall 17 outward and winding it in an annular shape.

容器本体１０の形成材料は特に限定されないが、容器の軽量化や廃棄の容易さ、省資源化を考慮して、紙を主体とする材料を用いることが好ましい。一例として、食品の包装用途では、容器本体１０の内面となる側から順に、低密度ポリエチレン（ＬＤＰＥ）、ポリエチレンテレフタラート（ＰＥＴ）、アルミニウム箔、紙を積層して形成され、高いガスバリア性（特に、酸素、水蒸気、芳香成分等の内容物由来の揮発成分を遮断する性質）を有するシート材料を利用できる。 The material for forming the container body 10 is not particularly limited, but it is preferable to use a material mainly made of paper in consideration of weight reduction of the container, ease of disposal, and resource saving. As an example, in food packaging applications, low-density polyethylene (LDPE), polyethylene terephthalate (PET), aluminum foil, and paper are laminated in order from the side that is the inner surface of the container body 10, and high gas barrier properties (particularly Sheet material having a property of blocking volatile components derived from contents such as oxygen, water vapor and aromatic components).

漏斗パーツ８は、一方端に向かって径の狭まる部分を有する漏斗と、これに一体化された部材からなる部品のことをいう。図１〜３に例示した漏斗パーツ８は、漏斗２０と、漏斗パーツ８の広口部分に接続される円筒形状の側壁２２とを備え、容器本体１０の開放端１１から内部へと挿入され、収納容器１０に嵌め込まれている。後述するように、漏斗２０は、他の容器への内容物５の詰め替えを容易にするために設けられているものであり、開放端１１に向かって径が狭まるように配置されている。漏斗２０のテーパー角αは、内容物の流動性に応じて適宜設定されるが、内容物が粉体の場合には、少なくとも２０°〜４５°、より好ましくは２０°に設定される。 The funnel part 8 refers to a part composed of a funnel having a portion whose diameter decreases toward one end and a member integrated with the funnel. The funnel part 8 illustrated in FIGS. 1 to 3 includes a funnel 20 and a cylindrical side wall 22 connected to the wide mouth portion of the funnel part 8, and is inserted into the container body 10 from the open end 11 and accommodated therein. The container 10 is fitted. As will be described later, the funnel 20 is provided for facilitating refilling of the contents 5 into another container, and is arranged so that the diameter decreases toward the open end 11. The taper angle α of the funnel 20 is appropriately set according to the fluidity of the contents, but when the contents are powder, it is set to at least 20 ° to 45 °, more preferably 20 °.

漏斗パーツ８は、例えば、ＨＤＰＥやＰＰ等の樹脂材料によって一体成型しても良いし、紙や樹脂、紙混合樹脂等を用いて別個に形成した漏斗２０及び側壁２２を互いに接続して構成しても良い。樹脂や紙混合樹脂を用いる場合、漏斗パーツ８は、例えば射出成形によって成形しても良い。漏斗２０や漏斗パーツ８の形状や取り付け方法は、図１〜３の例に限らず、様々なバリエーションがある。 The funnel part 8 may be integrally formed of a resin material such as HDPE or PP, for example, or may be configured by connecting a funnel 20 and a side wall 22 separately formed using paper, resin, paper mixed resin, or the like. May be. When resin or paper mixed resin is used, the funnel part 8 may be formed by, for example, injection molding. The shape and attachment method of the funnel 20 and the funnel part 8 are not limited to the examples of FIGS.

図４は、図２に示されるメンブレンの平面図であり、図５は、図４に示されるＶ−Ｖラインの断面図である。 4 is a plan view of the membrane shown in FIG. 2, and FIG. 5 is a cross-sectional view taken along line VV shown in FIG.

メンブレン３は、包装容器２に材料を充填した後に、包装容器２の開放端１１を封止するために用いられるものであり、包装容器２の用途に応じて、単一の層よりなるシート材料または複数層を積層したシート材料を利用できる。包装容器２の内容物が食品等の場合には、ガスバリア性を有する材料でメンブレン３を形成することが好ましい。 The membrane 3 is used to seal the open end 11 of the packaging container 2 after the packaging container 2 is filled with the material. Depending on the use of the packaging container 2, the sheet material is formed of a single layer. Or the sheet material which laminated | stacked several layers can be utilized. When the content of the packaging container 2 is food or the like, it is preferable to form the membrane 3 with a material having gas barrier properties.

具体的には、メンブレン３は、図５に示されるように、包装容器２にシールされるシーラント層３１と、シーラント層３１上に積層された樹脂層３２と、接着剤層３３を介して樹脂層３２上に張り合わされた金属箔層３４とから構成される。一例として、シーラント層３１をポリエチレンで形成し、樹脂層３２をポリエチレンテレフタラート（ＰＥＴ）で形成し、金属箔層３４はアルミニウムで形成しても良い。メンブレン３を構成する層の積層数や積層方法は特に限定されず、任意で良い。 Specifically, as shown in FIG. 5, the membrane 3 is made of resin through a sealant layer 31 sealed in the packaging container 2, a resin layer 32 laminated on the sealant layer 31, and an adhesive layer 33. And a metal foil layer 34 laminated on the layer 32. As an example, the sealant layer 31 may be formed of polyethylene, the resin layer 32 may be formed of polyethylene terephthalate (PET), and the metal foil layer 34 may be formed of aluminum. The number of layers and the stacking method of the layers constituting the membrane 3 are not particularly limited and may be arbitrary.

メンブレン３には、外部からの押圧によって張力が所定の大きさを超えたときに破断するように、中心から放射状に延びる６本の切断線３０が形成されている。切断線３０は、図４及び５に示されるように、メンブレン３の厚み方向においては、シーラント層３１及び樹脂層３２のみを切断し、かつ、メンブレン３の延伸方向においては、破線を描くように形成されている。 The membrane 3 is formed with six cutting lines 30 extending radially from the center so as to be broken when the tension exceeds a predetermined magnitude due to external pressure. 4 and 5, the cutting line 30 cuts only the sealant layer 31 and the resin layer 32 in the thickness direction of the membrane 3, and draws a broken line in the extending direction of the membrane 3. Is formed.

切断線３０は、メンブレン３の破断強度を調整するためのものであり、メンブレン３に加えられる押圧力に応じて、数やライン形状、切断箇所の長さ及び深さを任意に設定することができる。切断線３０の理想的な数としては、中心から放射状に３〜１０本の範囲で設けるのが望ましい。切断線３０は、直線状でも良いし曲線状でも良い。また、メンブレン３の延伸方向において、切断線３０は必ずしも破線状のミシン目である必要はなく、実線を描くように形成しても良い。 The cutting line 30 is for adjusting the breaking strength of the membrane 3, and according to the pressing force applied to the membrane 3, the number, the line shape, the length and depth of the cutting part can be arbitrarily set. it can. As an ideal number of the cutting lines 30, it is desirable to provide 3 to 10 radial lines from the center. The cutting line 30 may be linear or curved. Moreover, in the extending | stretching direction of the membrane 3, the cutting line 30 does not necessarily need to be a broken line perforation, and you may form it so that a continuous line may be drawn.

図６は、本発明に係るパッケージの使用状態を示す斜視図であり、図７は、図６に示されるＶＩＩ−ＶＩＩラインの断面図である。より特定的には、図６及び７において、（ａ）は、メンブレンの破断前の状態を示し、（ｂ）は、メンブレンの破断後の状態を示す。 6 is a perspective view showing a usage state of the package according to the present invention, and FIG. 7 is a cross-sectional view taken along the line VII-VII shown in FIG. More specifically, in FIGS. 6 and 7, (a) shows a state before the membrane is ruptured, and (b) shows a state after the membrane is ruptured.

パッケージ１内の内容物５を他の容器７に再充填する際には、まず、図６（ａ）及び７（ａ）に示すように、オーバーキャップを取り外した包装容器２を倒立させ、メンブレン３を保存容器７の開口部に当接させる。このとき、漏斗２０の狭口側の開口部が保存容器７の開口の範囲内に配置するため、包装容器２の中心を保存容器７の中心とを合わせる。 When refilling the contents 5 in the package 1 into another container 7, first, as shown in FIGS. 6 (a) and 7 (a), the packaging container 2 with the overcap removed is inverted, and the membrane 3 is brought into contact with the opening of the storage container 7. At this time, since the opening on the narrow mouth side of the funnel 20 is disposed within the range of the opening of the storage container 7, the center of the packaging container 2 is aligned with the center of the storage container 7.

次に、パッケージ１の底部を図の矢印方向に押下する。このとき、メンブレン３は、包装容器２の押圧に伴って、漏斗２０及び容器７の開口部から押圧力を受けるが、メンブレン３の張力が所定の破断強度を上回ると、図６（ｂ）及び７（ｂ）に示すように、メンブレン３が破断する。メンブレン３が破断すると、包装容器２に加えられた押圧力に従って、漏斗２０は容器７の内部へと挿入され、破断したメンブレン３は、漏斗２０と側壁２２とで挟まれた空間内に折り込まれる。この結果、漏斗２０の外方側の開口部が大きく開いた状態となるので、内容物５は、重力に従って、漏斗２０のテーパーに沿って容器７の内部に流入する。 Next, the bottom of the package 1 is pushed in the direction of the arrow in the figure. At this time, the membrane 3 receives a pressing force from the opening of the funnel 20 and the container 7 as the packaging container 2 is pressed. When the tension of the membrane 3 exceeds a predetermined breaking strength, FIG. As shown in FIG. 7 (b), the membrane 3 is broken. When the membrane 3 is broken, the funnel 20 is inserted into the container 7 according to the pressing force applied to the packaging container 2, and the broken membrane 3 is folded into a space sandwiched between the funnel 20 and the side wall 22. . As a result, the opening on the outer side of the funnel 20 is greatly opened, so that the content 5 flows into the container 7 along the taper of the funnel 20 according to gravity.

以上説明したように、本発明に係る包装容器２及びこれを用いたパッケージ１によれば、メンブレン３と容器７の開口部とを突き合わせて、包装容器２を保存容器７に向かって押圧することにより、メンブレン３の破断とほぼ同時に漏斗２０の開口部が保存容器７内に挿入される。包装容器２内の内容物５は漏斗２０によって保存容器７の内部に誘導されるため、詰め替え作業時に内容物５が飛散したりこぼれたりするのを防止できる。よって、本実施形態に係る包装容器２及びパッケージ１によれば、内容物の詰め替えを容易に行うことが可能となる。 As described above, according to the packaging container 2 and the package 1 using the same according to the present invention, the membrane 3 and the opening of the container 7 are brought into contact with each other, and the packaging container 2 is pressed toward the storage container 7. Accordingly, the opening of the funnel 20 is inserted into the storage container 7 almost simultaneously with the breakage of the membrane 3. Since the contents 5 in the packaging container 2 are guided into the storage container 7 by the funnel 20, it is possible to prevent the contents 5 from being scattered or spilled during the refilling operation. Therefore, according to the packaging container 2 and the package 1 which concern on this embodiment, it becomes possible to refill the contents easily.

以下、本発明の第１〜第４の実施形態に係る包装容器の製造方法を説明する。尚、以下の説明では、本発明の特徴である漏斗パーツと容器本体との接合方法を中心に説明する。 Hereinafter, the manufacturing method of the packaging container which concerns on the 1st-4th embodiment of this invention is demonstrated. In the following description, the method of joining the funnel part and the container body, which is a feature of the present invention, will be mainly described.

（第１の実施形態）
図８は、本発明の第１の実施形態に係る製造方法で使用される高周波溶着装置の概略構成を示す図であり、より特定的には、（ａ）は、正面図であり、（ｂ）は、背面図である。図９は、図８に示されるＡ₅−Ａ₅’ラインから見た図であり、図１０は、図９に示されるＢ₅−Ｂ₅’ラインの断面図である。 (First embodiment)
FIG. 8 is a diagram showing a schematic configuration of the high-frequency welding apparatus used in the manufacturing method according to the first embodiment of the present invention. More specifically, FIG. 8A is a front view, and FIG. ) Is a rear view. 9 is a view as seen from the line A ₅ -A ₅ ′ shown in FIG. 8, and FIG. 10 is a cross-sectional view taken along the line B ₅ -B ₅ ′ shown in FIG. 9.

高周波溶着装置５５１は、繊維強化プラスチック（ＦＲＰ）によって形成された円弧状の一対の枠部材５５２ａ及び５５２ｂと、コイル５５４ａ及び５５４ｂと、コイル５５４ａ及び５５４ｂに取り付けられる一対の取り付け具５５５ａ及び５５５ｂとを備える。 The high-frequency welding device 551 includes a pair of arc-shaped frame members 552a and 552b formed of fiber reinforced plastic (FRP), coils 554a and 554b, and a pair of attachments 555a and 555b attached to the coils 554a and 554b. Prepare.

コイル５５４ａ及び５５４ｂは、銅管の曲げ加工により形成され、枠部材５５２ａ及び５５２ｂの底部に形成された溝５５２ａ及び５５３ｂの内部に収納されている。図８（ｂ）にしめすように、コイル５５４ａ及び５５４ｂの一端同士は、フレキシブルな導電体５５７及び導管５５７によって接続されている。コイル５５４ａ及び５５４ｂには、図示しない電源装置から高周波電源が供給される。また、コイル５５４ａ及び５５４ｂは、その中空内部を循環する冷却水によって冷却されている。 The coils 554a and 554b are formed by bending a copper tube and are accommodated in grooves 552a and 553b formed in the bottoms of the frame members 552a and 552b. As shown in FIG. 8B, one ends of the coils 554a and 554b are connected by a flexible conductor 557 and a conduit 557. The coils 554a and 554b are supplied with high frequency power from a power supply device (not shown). Further, the coils 554a and 554b are cooled by cooling water circulating in the hollow interior.

高周波溶着装置５５１は、取り付け具５５５ａ及び５５５ｂを介して図示しない移動機構に取り付けられ、移動機構の動作に従って、上下方向（図８及び１０における上下方向）に昇降自在である。また、枠部材５５２ａ及び５５２ｂ（及びこれに収納されたコイル５５４ａ及び５５４ｂ）は、図８及び９の実線及び二点鎖線で示すように、移動機構の動作に従って、互いに近づく方向及び遠ざかる方向に開閉自在である。 The high-frequency welding device 551 is attached to a moving mechanism (not shown) via attachments 555a and 555b, and can move up and down in the vertical direction (the vertical direction in FIGS. 8 and 10) according to the operation of the moving mechanism. Further, the frame members 552a and 552b (and the coils 554a and 554b accommodated therein) open and close in a direction toward and away from each other according to the operation of the moving mechanism, as indicated by solid lines and two-dot chain lines in FIGS. It is free.

図１１は、本発明の第１の実施形態に係る製造方法の一工程を説明するための断面図であり、図１２は、図１１に示されるＣ₅部分の拡大図である。図１３は、図１１に続く工程を説明するための断面図であり、図１４は、図１３に続く工程を説明するための断面図であり、図１５は、図１４に続く工程を説明するための断面図である。 FIG. 11 is a cross-sectional view for explaining one process of the manufacturing method according to the first embodiment of the present invention, and FIG. 12 is an enlarged view of a portion C ₅ shown in FIG. 13 is a cross-sectional view for explaining the process following FIG. 11, FIG. 14 is a cross-sectional view for explaining the process following FIG. 13, and FIG. 15 explains the process following FIG. FIG.

まず、図１１に示すように、カップ成形機等で成型した容器本体５１０の開放端５１１に、インジェクション成形等で成型した漏斗パーツ５０８を挿入する。 First, as shown in FIG. 11, the funnel part 508 molded by injection molding or the like is inserted into the open end 511 of the container body 510 molded by a cup molding machine or the like.

容器本体５１０は、紙を主体とするシート材料により形成され、開放端５１１と側壁５１７と底部とを有する円筒形状を有している。側壁５１７の最内面にはポリエチレン等の熱可塑性樹脂層が設けられ、熱可塑性樹脂層の外方側にはアルミニウム箔等の金属層が設けられている。 The container main body 510 is formed of a sheet material mainly made of paper, and has a cylindrical shape having an open end 511, a side wall 517, and a bottom. A thermoplastic resin layer such as polyethylene is provided on the innermost surface of the side wall 517, and a metal layer such as an aluminum foil is provided on the outer side of the thermoplastic resin layer.

一方、漏斗パーツ５０８は、一端に向かって径の狭まる漏斗５２０と、漏斗５２０の広口側の開口部に接続され、漏斗５２０の外面を取り囲む円筒形状の側壁５２３とを有する。更に、図１２に示すように、側壁５２３の外面のうち、漏斗５２０の狭口側部分に凸条５２４ａ〜５２４ｃが設けられると共に、漏斗５２０の広口側部分に凸条５２５ａ及び５２５ｂが設けられている。凸条５２４ａ〜５２４ｃ、５２５ａ及び５２５ｂの各々は、側壁５２３の外面から突出して、側壁５２３の全周に渡って周方向に延びるように、側壁５２３と一体成型されている。また、凸条５２４ａ〜５２４ｃ、５２５ａ及び５２５ｂの最外径は、容器本体５１０の内径より大きく設定されている。したがって、図１１に示した工程では、凸条５２４ａ〜５２４ｃ、５２５ａ及び５２５ｂの各々によって、容器本体５１０の側壁５１７を外方に押し広げながら、容器本体５１０に漏斗パーツ５０８を嵌め込む。 On the other hand, the funnel part 508 has a funnel 520 whose diameter is narrowed toward one end, and a cylindrical side wall 523 that is connected to the wide-mouth side opening of the funnel 520 and surrounds the outer surface of the funnel 520. Further, as shown in FIG. 12, the ridges 524 a to 524 c are provided on the narrow mouth side portion of the funnel 520, and the ridges 525 a and 525 b are provided on the wide mouth side portion of the funnel 520. Yes. Each of the ridges 524a to 524c, 525a and 525b is integrally formed with the side wall 523 so as to protrude from the outer surface of the side wall 523 and extend in the circumferential direction over the entire circumference of the side wall 523. Further, the outermost diameters of the ridges 524 a to 524 c, 525 a and 525 b are set larger than the inner diameter of the container main body 510. Therefore, in the step shown in FIG. 11, the funnel part 508 is fitted into the container body 510 while the side walls 517 of the container body 510 are pushed outward by the ridges 524a to 524c, 525a and 525b.

次に、図１３に示すように、漏斗パーツ５０８を容器本体５１０に嵌め込んだワークを円筒形状のアンビル５５６に挿入した後、高周波溶着装置５５１を容器本体５１０の開放端に向けて降下させ、図１４に示すように、漏斗５２０の外面と側壁５２３の内面とで挟まれた空間にコイル５５４ａ及び５５４ｂを挿入する。コイル５５４ａ及び５５４ｂの垂直位置が、漏斗パーツ５０８の側壁５２３に形成された凸条５２４ａ〜５２４ｃの垂直位置とほぼ同じとなるまで、高周波溶着装置５５１を降下させる。 Next, as shown in FIG. 13, after inserting the work fitting the funnel part 508 into the container body 510 into the cylindrical anvil 556, the high-frequency welding device 551 is lowered toward the open end of the container body 510, As shown in FIG. 14, the coils 554 a and 554 b are inserted into a space sandwiched between the outer surface of the funnel 520 and the inner surface of the side wall 523. The high frequency welding apparatus 551 is lowered until the vertical positions of the coils 554a and 554b are substantially the same as the vertical positions of the ridges 524a to 524c formed on the side wall 523 of the funnel part 508.

次に、枠部材５５２ａ及び５５２ｂを互いに遠ざかる方向（図１４に示す矢印の方向）に水平移動させ、図１５に示すように枠部材５５２ａ及び５５２ｂとアンビル５５６との間に、漏斗パーツ５０８の側壁５２３と容器本体５１０の側壁５１７との重なり部分を挟み込む。このとき、コイル５５４ａ及び５５４ｂは、枠部材５５２ａ及び５５２ｂを介して、側壁５１７及び５２３の重なり部分から所定距離だけ離れた位置に配置される。 Next, the frame members 552a and 552b are horizontally moved away from each other (the direction of the arrow shown in FIG. 14), and the side wall of the funnel part 508 is interposed between the frame members 552a and 552b and the anvil 556 as shown in FIG. An overlapping portion between 523 and the side wall 517 of the container body 510 is sandwiched. At this time, the coils 554a and 554b are disposed at a position away from the overlapping portion of the side walls 517 and 523 by a predetermined distance via the frame members 552a and 552b.

次に、図示しない電源装置からコイル５５４ａ及び５５４ｂへと高周波電流を所定時間だけ供給して、容器本体５１０の側壁５１７を構成する金属層を誘電加熱する。 Next, a high-frequency current is supplied from a power supply device (not shown) to the coils 554a and 554b for a predetermined time, and the metal layer constituting the side wall 517 of the container body 510 is dielectrically heated.

図１６は、漏斗パーツと容器本体の溶着箇所を示す断面図である。 FIG. 16 is a cross-sectional view showing a welding location between the funnel part and the container body.

金属層の内部加熱によって、その内面側（側壁５１７の最内面）に設けられた熱可塑性樹脂層が溶融する。上述したように、凸条５２４ａ〜５２４ｃは、容器本体５１０の側壁５１７を押し広げるように押圧しているため、溶融した樹脂が凸条５２４ａ〜５２４ｃの外面にまで広がった状態で固化する。この結果、図１６に示すように、凸条５２４ａ〜５２４ｃが熱可塑性樹脂層に食い込んだ状態で、漏斗パーツ５０８の側壁５２３が容器本体５１０の側壁５１７に接合される。 By the internal heating of the metal layer, the thermoplastic resin layer provided on the inner surface side (the innermost surface of the side wall 517) is melted. As described above, since the ridges 524a to 524c are pressed so as to push and spread the side wall 517 of the container body 510, the molten resin is solidified in a state of spreading to the outer surfaces of the ridges 524a to 524c. As a result, as shown in FIG. 16, the side wall 523 of the funnel part 508 is joined to the side wall 517 of the container body 510 with the ridges 524 a to 524 c biting into the thermoplastic resin layer.

尚、図１６において、凸条５２５ａ及び５２５ｂは、側壁５１７に溶着されていないが、これらの最外径と側壁５１７の内径との差によって、側壁５１７の内面を押し広げた状態が維持されている。このように凸条５２５ａ及び５２５ｂと側壁５１７の内面との密着状態が保たれることによって、漏斗パーツ５０８の側壁５２３と容器本体５１０との間に内容物が入り込むことを防止できる。 In FIG. 16, the ridges 525 a and 525 b are not welded to the side wall 517, but the state in which the inner surface of the side wall 517 is expanded by the difference between the outermost diameter and the inner diameter of the side wall 517 is maintained. Yes. Thus, by maintaining the close contact state between the ridges 525 a and 525 b and the inner surface of the side wall 517, it is possible to prevent the contents from entering between the side wall 523 of the funnel part 508 and the container body 510.

以上説明したように、本実施形態に係る製造方法では、高周波溶着によって、漏斗パーツ５０８と容器本体５１０とを高速かつ確実に接合することができるので、包装容器を効率的に製造することが可能となる。 As described above, in the manufacturing method according to the present embodiment, the funnel part 508 and the container body 510 can be bonded at high speed and reliably by high-frequency welding, so that the packaging container can be efficiently manufactured. It becomes.

（第２の実施形態）
図１７は、本発明の第２の実施形態に係る製造方法を説明するための模式図であり、図１８は、図１７に示されるＤ₅−Ｄ₅’ラインの断面図である。 (Second Embodiment)
FIG. 17 is a schematic view for explaining the manufacturing method according to the second embodiment of the present invention, and FIG. 18 is a cross-sectional view taken along line D ₅ -D ₅ ′ shown in FIG.

本実施形態では、第１の実施形態で説明したものと同一構成の容器本体５１０と漏斗パーツ５０８を、容器本体５１０の外面に配置されるリング状のコイル５５９を用いた高周波溶着により接合する。より具体的には、容器本体５１０に漏斗パーツ５０８を嵌合させた後、容器本体５１０をコイル５５９の内部に挿入して、側壁５１７及び５２３の重なり部分を取り囲むようにコイル５５９の位置を調整する。その後、第１の実施形態と同様に、図示しない電源装置からコイル５５９へと高周波電流を所定時間だけ供給することによって、漏斗パーツ５０８の側壁５２３と容器本体５１０の側壁５１７とを溶着する。 In this embodiment, the container main body 510 and the funnel part 508 having the same configuration as that described in the first embodiment are joined by high-frequency welding using a ring-shaped coil 559 disposed on the outer surface of the container main body 510. More specifically, after the funnel part 508 is fitted to the container body 510, the container body 510 is inserted into the coil 559 and the position of the coil 559 is adjusted so as to surround the overlapping portion of the side walls 517 and 523. To do. After that, as in the first embodiment, a high-frequency current is supplied from a power supply device (not shown) to the coil 559 for a predetermined time to weld the side wall 523 of the funnel part 508 and the side wall 517 of the container body 510.

本実施形態では、立てた容器本体５１０に対してコイル５５９を上下させる操作、または、所定位置に保持されるコイル５５９に対して容器本体を上下させる操作を行うだけで、容器本体５１０に対するコイル５５９の位置決めができるので、高周波溶着装置の機構をシンプルに構成することができる。また、本実施形態では、容器本体５１０のほぼ全周を同時に溶着することができるので、十分な強度での接合を効率的に行うことができる。更に、容器本体５１０や漏斗パーツ５０８に、高周波溶着装置やアンビルが接触しないため、包装容器を傷つける虞もない。 In this embodiment, the coil 559 for the container body 510 can be obtained simply by performing an operation for moving the coil 559 up and down with respect to the standing container body 510 or an operation for moving the container body up and down with respect to the coil 559 held at a predetermined position. Therefore, the mechanism of the high-frequency welding apparatus can be simply configured. Moreover, in this embodiment, since the substantially whole periphery of the container main body 510 can be welded simultaneously, joining with sufficient intensity | strength can be performed efficiently. Furthermore, since the high-frequency welding device and the anvil do not contact the container main body 510 and the funnel part 508, there is no possibility of damaging the packaging container.

尚、本実施形態では、説明を簡略化するために、コイル５５９のみを図示しているが、第１の実施形態と同様にコイル５５９を内蔵した枠部材と、漏斗パーツ５０８に挿入されるアンビルとを用いても良い。すなわち、枠部材とアンビルとの間に、漏斗パーツ５０８の側壁５２３と容器本体５１０の側壁５１７との重なり部分挟み込んだ状態で、コイル５５９に高周波電流を供給して溶着を行っても良い。 In the present embodiment, only the coil 559 is illustrated for the sake of simplification, but a frame member incorporating the coil 559 and an anvil inserted into the funnel part 508 are the same as in the first embodiment. And may be used. That is, welding may be performed by supplying a high-frequency current to the coil 559 in a state where the overlapping portion between the side wall 523 of the funnel part 508 and the side wall 517 of the container body 510 is sandwiched between the frame member and the anvil.

（第３の実施形態）
図１９は、本発明の第３の実施形態に係る製造方法を説明するための図であり、図２０は、図１９に示されるＥ₅−Ｅ₅’ラインの断面図である。 (Third embodiment)
FIG. 19 is a view for explaining the manufacturing method according to the third embodiment of the present invention, and FIG. 20 is a cross-sectional view taken along line E ₅ -E ₅ ′ shown in FIG.

本実施形態では、第１の実施形態と同一構成の容器本体５１０と漏斗パーツ５０８とを超音波ホーン５６０を用いた超音波溶着により接合する。 In this embodiment, the container main body 510 and the funnel part 508 having the same configuration as in the first embodiment are joined by ultrasonic welding using an ultrasonic horn 560.

超音波ホーン５６０は、容器本体５１０の外面と同一曲率の曲面よりなる端面５６３を有し、容器本体５１０の周方向に沿って外面の一部に当接することができる。端面５６３上の最も振動子側の位置Ｔ₁から端面５６３の先端の位置Ｔ₀までの距離ｄは、位置Ｔ₀〜Ｔ₁の範囲内で溶着に有効な超音波振幅が得られるように決定される。例えば、位置Ｔ₁の端面５６３上で最大振幅が得られる条件下で、位置Ｔ₀の端面５６３上で溶着に最低限必要な振幅が得られるように距離ｄの値を設定することができる。したがって、超音波ホーン５６０の端面５６３と容器本体５１０外面との接触範囲（容器本体５１０の中心軸Ｚを中心とする角度θで表す）は、距離ｄと容器本体５１０の半径ｒとを用いて求めることができる。 The ultrasonic horn 560 has an end surface 563 made of a curved surface having the same curvature as the outer surface of the container main body 510, and can abut a part of the outer surface along the circumferential direction of the container main body 510. The distance d from the position T ₁ closest to the transducer on the end surface 563 to the position T ₀ of the tip of the end surface 563 is determined so that an ultrasonic amplitude effective for welding is obtained within the range of the positions T _{0 to} T _1. Is done. For example, the value of the distance d can be set so that the minimum amplitude required for welding is obtained on the end surface 563 at the position T ₀ under the condition that the maximum amplitude is obtained on the end surface 563 at the position T ₁ . Therefore, the contact range between the end surface 563 of the ultrasonic horn 560 and the outer surface of the container body 510 (represented by an angle θ about the central axis Z of the container body 510) is determined using the distance d and the radius r of the container body 510. Can be sought.

容器本体５１０と漏斗パーツ５０８とを接合する際には、まず、容器本体５１０の開放端５１６に漏斗パーツ５０８を嵌め込んだワークをアンビル５６２に取り付ける。次に、図１９及び２０に示すように、漏斗パーツ５０８の側壁５２３と容器本体５１０の側壁５１７との重なり部分に沿って超音波ホーン５６０の端面５６３を当接させる。そして、超音波ホーン５６０とアンビル５６２との間で、漏斗パーツ５０８の側壁５２３を容器本体５１０の側壁５１７に押圧しながら、超音波ホーン５６０を所定時間だけ発振させる。超音波振動によって、側壁５１７及び５２３の界面にある熱可塑性樹脂層（側壁５１７の最内面）が溶融し、漏斗パーツ５０８の一部と容器本体５１０の一部とが接合される。その後、超音波ホーン５６０を例えば二点鎖線で示した位置に移動させて、再度超音波ホーン５６０を発振させることによって、漏斗パーツ５０８の一部と容器本体５１０の一部とを接合することができる。このように、超音波ホーン５６０の端面５６３と容器本体５１０の外面との接触位置を変えながら、超音波ホーン５６０を間欠的に複数回発振させることで、漏斗パーツ５０８と容器本体５１０とを必要な強度で接合することができる。 When joining the container main body 510 and the funnel part 508, first, a work in which the funnel part 508 is fitted to the open end 516 of the container main body 510 is attached to the anvil 562. Next, as shown in FIGS. 19 and 20, the end face 563 of the ultrasonic horn 560 is brought into contact with the overlapping portion of the side wall 523 of the funnel part 508 and the side wall 517 of the container body 510. Then, the ultrasonic horn 560 is oscillated for a predetermined time while pressing the side wall 523 of the funnel part 508 against the side wall 517 of the container body 510 between the ultrasonic horn 560 and the anvil 562. By the ultrasonic vibration, the thermoplastic resin layer (the innermost surface of the side wall 517) at the interface between the side walls 517 and 523 is melted, and a part of the funnel part 508 and a part of the container body 510 are joined. Thereafter, the ultrasonic horn 560 is moved to a position indicated by, for example, a two-dot chain line, and the ultrasonic horn 560 is oscillated again to join a part of the funnel part 508 and a part of the container body 510. it can. As described above, the funnel part 508 and the container main body 510 are necessary by causing the ultrasonic horn 560 to oscillate a plurality of times intermittently while changing the contact position between the end surface 563 of the ultrasonic horn 560 and the outer surface of the container main body 510. Bonding can be performed with high strength.

尚、漏斗パーツ５０８と容器本体５１０とを複数回に渡って超音波溶着する場合、超音波ホーン５６０を移動させる代わりに、ワークを容器本体５１０の中心軸Ｚ軸周りに回転させることによって、超音波ホーン５６０と容器本体５１０との接触箇所を変更しても良い。 In addition, when ultrasonically welding the funnel part 508 and the container body 510 a plurality of times, instead of moving the ultrasonic horn 560, the workpiece is rotated around the central axis Z-axis of the container body 510, The contact location between the sonic horn 560 and the container body 510 may be changed.

また、複数の超音波ホーンを容器本体５１０の周方向に並べて配置し、これらの超音波ホーンを所定の順序で発振させることで、複数箇所を連続して超音波溶着しても良い。例えば、図１９及び２０に超音波ホーン５６０（実線）に加えて、二点鎖線で示した位置に２台目の超音波ホーンを配置し、これらの間で振動干渉が生じないように逐次発振を行えば、漏斗パーツ５０８を容器本体５１０に効率的に接合することができる。 Further, a plurality of ultrasonic horns may be arranged side by side in the circumferential direction of the container main body 510 and these ultrasonic horns may be oscillated in a predetermined order to continuously ultrasonically weld a plurality of locations. For example, in addition to the ultrasonic horn 560 (solid line) in FIGS. 19 and 20, a second ultrasonic horn is disposed at the position indicated by a two-dot chain line, and successive oscillation is performed so that no vibration interference occurs between them. , The funnel part 508 can be efficiently joined to the container body 510.

本実施形態のように超音波振動によって内部加熱する場合には、容器本体や漏斗に発熱体となる金属層が不要となるので、省資源化や廃棄が容易な包装容器を効率的に製造できる。 In the case of internal heating by ultrasonic vibration as in this embodiment, a metal layer serving as a heating element is not required for the container body or the funnel, so that a packaging container that can be easily saved and discarded can be efficiently manufactured. .

（第４の実施形態）
図２１は、本発明の第４の実施形態に係る製造方法を説明するための模式図である。 (Fourth embodiment)
FIG. 21 is a schematic diagram for explaining the manufacturing method according to the fourth embodiment of the present invention.

本実施形態では、直列に配置した２台の超音波ホーン５６４及び５６５を用いて、容器本体５１０の全周に渡って超音波溶着を行う。 In this embodiment, ultrasonic welding is performed over the entire circumference of the container main body 510 using two ultrasonic horns 564 and 565 arranged in series.

より具体的には、容器本体５１０の開放端５１６に漏斗パーツ５０８を嵌め込んだワークを図示しないアンビルに取り付ける。次に、漏斗パーツ５０８及び容器本体５１０の側壁同士の重なり部分を超音波ホーン５６４の端面に当接させたまま、ワークを容器本体５１０の中心軸Ｚの周りに回転させながら、超音波ホーン５６４及び５６５の整列方向（図のブロック矢印で示す方向）に移動させる。超音波ホーン５６４及び５６５は、ワークが当接している間連続して発振し、容器本体５１０との接触箇所を超音波溶着する。 More specifically, the work in which the funnel part 508 is fitted to the open end 516 of the container body 510 is attached to an anvil (not shown). Next, the ultrasonic horn 564 is rotated while the workpiece is rotated around the central axis Z of the container main body 510 while the overlapping portion of the funnel part 508 and the side wall of the container main body 510 is in contact with the end face of the ultrasonic horn 564. And 565 in the alignment direction (the direction indicated by the block arrow in the figure). The ultrasonic horns 564 and 565 continuously oscillate while the workpiece is in contact, and ultrasonically weld the contact portion with the container main body 510.

本実施形態によれば、容器本体５１０の全周に渡って連続して漏斗パーツ５０８の溶着を行うことができるので、高速かつ十分な接合強度を有する包装容器を製造することができる。 According to this embodiment, since the funnel part 508 can be welded continuously over the entire circumference of the container body 510, a packaging container having a high speed and sufficient bonding strength can be manufactured.

（その他の変形例）
上記の第１〜第４の各実施形態では、漏斗パーツ（凸条）の外径と容器本体の内径との寸法差によって、漏斗パーツが容器本体を押し広げるように押圧する例を示したが、アンビル等を用いて漏斗パーツと容器本体の側壁同士を圧着できる場合は、凸条や両者の寸法差をなくしても良い。 (Other variations)
In each of the first to fourth embodiments, the example in which the funnel part presses the container body so as to expand the container body due to the dimensional difference between the outer diameter of the funnel part (projection) and the inner diameter of the container body is shown. When the funnel parts and the side walls of the container body can be crimped using an anvil or the like, the ridges and the dimensional difference between the two may be eliminated.

また、上記の第１〜第４の各実施形態では、漏斗パーツの側壁に設けられた凸条が側壁の全周に渡って形成されている例を説明したが、複数の凸条が間欠的に形成されていても良い。 Moreover, although said 1st-4th embodiment demonstrated the example in which the protruding item | line provided in the side wall of the funnel part was formed over the perimeter of a side wall, a some protruding item | line is intermittent. It may be formed.

更に、上記の第１〜第４の各実施形態では、樹脂製の漏斗パーツを紙製の容器本体に溶着する例を説明したが、漏斗パーツも紙を主体とする材料で構成した場合でも、本発明に係る接合方法を同様に適用できる。 Furthermore, in each of the first to fourth embodiments described above, an example in which a resin funnel part is welded to a paper container body has been described, but even when the funnel part is also made of a paper-based material, The joining method according to the present invention can be similarly applied.

更に、上記の第１〜第４の各実施形態において、アンビルを用いずに容器本体と漏斗パーツとを溶着しても良い。また、アンビルの形状は特に限定されず、複数のパーツから構成されるアンビルを使用しても良い。 Furthermore, in each of the first to fourth embodiments, the container body and the funnel part may be welded without using the anvil. Moreover, the shape of an anvil is not specifically limited, You may use the anvil comprised from several parts.

更に、上記の第１〜第４の各実施形態において、漏斗パーツの側壁にフランジを更に設け、漏斗パーツのフランジを容器本体のフランジ上に重ね合わせた状態で両者を溶着しても良い。この場合、漏斗パーツのフランジ部の下面に凸条を設けておけば、溶着しやすくなるので好ましい。 Further, in each of the first to fourth embodiments, a flange may be further provided on the side wall of the funnel part, and both may be welded in a state where the flange of the funnel part is superimposed on the flange of the container body. In this case, it is preferable to provide a ridge on the lower surface of the flange portion of the funnel part because it facilitates welding.

更に、上記の第３及び第４の実施形態では、容器本体の外側に超音波ホーンを当接させる接合方法を説明したが、漏斗パーツの側壁の内面側に超音波ホーンを当接させても良い。 Furthermore, in the third and fourth embodiments described above, the joining method in which the ultrasonic horn is brought into contact with the outside of the container main body has been described. However, even if the ultrasonic horn is brought into contact with the inner surface side of the side wall of the funnel part. good.

本発明は、インスタントコーヒーや粉ミルク等の食品や、複写機やレーザープリンター用のトナーなど、粉状・顆粒状・液状の流動性を有する材料を他の容器に移し替えるための包装容器として利用できる。 INDUSTRIAL APPLICABILITY The present invention can be used as a packaging container for transferring powdery, granular, and liquid fluid materials such as instant coffee and powdered milk, toners for copying machines and laser printers to other containers. .

１パッケージ
２包装容器
３メンブレン
５粉体
７容器
８漏斗パーツ
１０容器本体
１１開放端
１７側壁
２０漏斗
５０８漏斗パーツ
５１０容器本体
５１１開放端
５１７側壁
５２０漏斗
５２３側壁
５２４凸条
５５４、５５９コイル
５６０、５６４、５６５超音波ホーン
５６３端面 DESCRIPTION OF SYMBOLS 1 Package 2 Packaging container 3 Membrane 5 Powder 7 Container 8 Funnel part 10 Container body 11 Open end 17 Side wall 20 Funnel 508 Funnel part 510 Container body 511 Open end 517 Side wall 520 Funnel 523 Side wall 524 Convex 554, 559 Coils 560, 564 565 Ultrasonic horn 563 End face

Claims

A cylindrical container body having an open end, a bottom, and a side wall, a funnel having a diameter narrowing toward the open end, and a cylindrical shape surrounding the outer surface of the funnel. A funnel part including a side wall, and a first protrusion that protrudes from an outer surface of the side wall and extends in a circumferential direction is provided on a narrow side portion of the funnel on a side wall of the funnel part, and the funnel part includes A second ridge that protrudes from the outer surface of the side wall and extends in the circumferential direction is provided on the wide-mouth side portion of the funnel in the side wall of the part, and the outer diameters of the first and second ridges are as follows: A method for manufacturing a packaging container, which is set to be larger than the inner diameter of the container body,
The container body having a thermoplastic resin layer provided on the innermost surface and a metal layer provided on the outer side from the thermoplastic resin layer is provided with a side wall of the container body by the first and second ridges. Insert the funnel part in a state where it is spread outward,
A coil is arranged with a predetermined gap between the first protruding strip of the funnel part and the overlapping portion of the side wall of the container body,
While pressing the side wall of the funnel part against the side wall of the container body, a high frequency current is supplied to the coil to inductively heat a part of the metal layer, and the thermoplastic resin layer and the side wall of the funnel part are welded. A method for manufacturing a packaging container.

The manufacturing method of the packaging container of Claim 1 which inserts the said coil in the space pinched | interposed by the outer surface of the said funnel, and the inner surface of the said side wall.

A cylindrical container body having an open end, a bottom, and a side wall, a funnel having a diameter narrowing toward the open end, and a cylindrical shape surrounding the outer surface of the funnel. A funnel part including a side wall, and a first protrusion that protrudes from an outer surface of the side wall and extends in a circumferential direction is provided on a narrow side portion of the funnel on a side wall of the funnel part , and the funnel part includes A second ridge that protrudes from the outer surface of the side wall and extends in the circumferential direction is provided on the wide-mouth side portion of the funnel in the side wall of the part, and the outer diameters of the first and second ridges are as follows: A method for manufacturing a packaging container, which is set to be larger than the inner diameter of the container body ,
The container body having a thermoplastic resin layer provided on the innermost surface and a metal layer provided on the outer side from the thermoplastic resin layer is provided with a side wall of the container body by the first and second ridges. Insert the funnel part in a state where it is spread outward ,
The outer surface of the side wall of the container body is set to substantially the entire circumference in the circumferential direction so that a predetermined gap is formed between the side wall of the funnel part and the outer surface of the container body at the overlapping portion of the side wall of the container body. Place the coil so that it surrounds,
While pressing the side wall of the funnel part against the side wall of the container body, a high frequency current is supplied to the coil to inductively heat a part of the metal layer, and the thermoplastic resin layer and the side wall of the funnel part are welded. A method for manufacturing a packaging container.

A cylindrical container body having an open end, a bottom, and a side wall, a funnel having a diameter narrowing toward the open end, and a cylindrical shape surrounding the outer surface of the funnel. A funnel part including a side wall, and a first protrusion that protrudes from an outer surface of the side wall and extends in a circumferential direction is provided on a narrow side portion of the funnel on a side wall of the funnel part, and the funnel part includes A second ridge that protrudes from the outer surface of the side wall and extends in the circumferential direction is provided on the wide-mouth side portion of the funnel in the side wall of the part, and the outer diameters of the first and second ridges are as follows: A method for manufacturing a packaging container, which is set to be larger than the inner diameter of the container body,
In the container body having the thermoplastic resin layer on the innermost surface, the funnel part is inserted in a state where the side wall of the container body is pushed outward with the first and second ridges,
Abutting the end face of the ultrasonic horn along the overlapping portion of the first ridge of the funnel part and the side wall of the container body,
A method of manufacturing a packaging container, wherein the ultrasonic horn is oscillated while pressing the side wall of the funnel part against the side wall of the container body, thereby welding the thermoplastic resin layer and the side wall of the funnel part.

The ultrasonic horn has an end surface in contact with only a part of the outer surface of the container body in the circumferential direction of the container body,
While changing the contact position between the end surface of the ultrasonic horn and the outer surface of the container body, the ultrasonic horn is intermittently oscillated a plurality of times to weld the thermoplastic resin layer and the side wall of the funnel part. The manufacturing method of the packaging container of Claim 4.

A cylindrical container body having an open end, a bottom, and a side wall, a funnel having a diameter narrowing toward the open end, and a cylindrical shape surrounding the outer surface of the funnel. A method of manufacturing a packaging container comprising a funnel part including a side wall,
Insert the funnel part into a container body having a thermoplastic resin layer on the innermost surface,
In the circumferential direction of the container body, a plurality of the ultrasonic horns having end faces along only a part of the outer surface of the container body are arranged side by side in the circumferential direction of the container body, and the side wall of the funnel part and the container body Abutting the end faces of the plurality of ultrasonic horns along the overlapping portion with the side wall,
While urging the side wall of the funnel part against the side wall of the container body, the plurality of ultrasonic horns are oscillated in a predetermined order to weld the thermoplastic resin layer and the side wall of the funnel part. Production method.

A cylindrical container body having an open end, a bottom, and a side wall, a funnel having a diameter narrowing toward the open end, and a cylindrical shape surrounding the outer surface of the funnel. A method of manufacturing a packaging container comprising a funnel part including a side wall,
Insert the funnel part into a container body having a thermoplastic resin layer on the innermost surface,
A plurality of the ultrasonic horns are arranged side by side in a predetermined direction, and an end face of the ultrasonic horn is brought into contact along an overlapping portion between a side wall of the funnel part and a side wall of the container body,
While pressing the side wall of the funnel part against the side wall of the container main body, the ultrasonic horn is oscillated, and the container main body is rotated around the central axis while being in contact with the end face of the ultrasonic horn. The manufacturing method of a packaging container which welds the said thermoplastic resin layer and the side wall of the said funnel part by moving to a direction.