JP5856036B2

JP5856036B2 - Middle dish with opening detection function and molding method thereof

Info

Publication number: JP5856036B2
Application number: JP2012234368A
Authority: JP
Inventors: 雅紀渡邉; 葵須賀
Original assignee: IWASAKI CO., LTD.
Current assignee: IWASAKI CO., LTD.
Priority date: 2012-10-24
Filing date: 2012-10-24
Publication date: 2016-02-09
Anticipated expiration: 2032-10-24
Also published as: JP2014083218A

Description

本発明は食品、化粧品等の容器の内部に設置する開封検知機能付き中皿及びその成型方法に関する。 The present invention relates to an inner dish with an opening detection function installed inside a container for food, cosmetics, etc. and a molding method thereof.

食品や化粧品等の容器では、商品の内容物の飛散防止や未開封であることの検知のため、容器の開口部に、合成樹脂製やアルミニウム製の封引用フィルムを容易に剥離できるように貼付けることが知られている。 For food and cosmetic containers, affixed synthetic resin or aluminum sealing film to the opening of the container so that the contents of the product can be prevented from being scattered or unopened. It is known that

また、パウダー状化粧料のような粉体収納容器においては、容器本体の内部に設けられた中皿に弾力あるメッシュを張設し、中皿の下方に収容された化粧料をメッシュの上から化粧用パフで拭い適量ずつ使用させるようにしているが、この容器に開封検知性を付与するため、このメッシュを張設した中皿の上から、合成樹脂製のフィルムを貼着することも知られている。 In addition, in powder storage containers such as powdery cosmetics, a resilient mesh is stretched on the inner plate provided inside the container body, and the cosmetics stored under the inner plate are placed over the mesh. We use a suitable amount of wiping with a cosmetic puff, but we also know that a synthetic resin film is stuck on the inner plate with this mesh stretched in order to give this container openness detection. It has been.

特開平５−６５１０５号公報は、化粧用コンパクト容器の中皿に封印シールを設ける場合に、気密性や封印効果を高めるため枠体の上面に沿って舌片を備えたフィルムをインサート成型し、使用時にはこの舌片を持ち上げることによりフィルムを枠体から剥離させて内部のコンパクトを取り出せるようにしている。 JP-A-5-65105 discloses insert molding of a film provided with tongue pieces along the upper surface of the frame body in order to improve the airtightness and sealing effect when providing a sealing seal on the middle dish of a cosmetic compact container, During use, the tongue is lifted to peel the film from the frame so that the internal compact can be taken out.

実開平４−４１３１４号公報は、化粧品コンパクト容器の中皿に封引用シールを貼着する場合において、使用者が開口内部を押圧した際のメッシュ部材とフィルム部材の伸びの違いを利用してフィルム部材の周囲を剥離させる技術を開示している。 Japanese Utility Model Publication No. 4-41314 discloses a film using a difference in elongation between a mesh member and a film member when a user presses the inside of the opening when a sealing seal is stuck on a dish of a cosmetic compact container. A technique for peeling the periphery of a member is disclosed.

特開平５−６５１０５号公報JP-A-5-65105 実開平４−４１３１４号公報Japanese Utility Model Publication No. 4-41314

実開平４−４１３１４号公報のように容器の開口部に封引用フィルムを剥離可能に貼着する場合、予め切取ったフィルムを位置合わせして設置する工程が必要となり、その分コスト高となる問題があった。また弾力のある枠体に予め封引用フィルムを貼着してから容器に設置する場合、設置時の枠体の変形により貼着部分の一部が剥がれてしわを生じ、シールの機能を損なうおそれがあった。 When the sealing film is detachably attached to the opening of the container as in Japanese Utility Model Publication No. 4-41314, a process of aligning and installing the pre-cut film is required, which increases the cost. There was a problem. In addition, when a sealing film is attached to a resilient frame in advance and then installed in a container, deformation of the frame at the time of installation may cause part of the attached part to peel off and cause wrinkles, which may impair the function of the seal. was there.

特開平５−６５１０５号公報のようにフィルム部材を枠体にインサート成型する場合でも、開封の際に使用者がフィルムの一部を引き起こして剥離させる手間があった。またフィルム部材と枠体の結合は剥離可能とするため若干弱める必要があり、また中皿の形状もシールの引き剥がしが容易な形状に限られていた。さらに、パウダー状化粧料のような粉体収納容器において中皿に柔軟なメッシュ部材が張設される場合に、封引用のフィルム部材と柔軟なメッシュ部材とを同時にインサート成型により一体化し、かつ封引用フィルムを容易に取り外せるようにする技術はこれまでなかった。
Even when the film member is insert-molded into the frame as in JP-A-5-65105, there is a trouble for the user to cause a part of the film to be peeled when opening. In addition, since the coupling between the film member and the frame can be peeled off, it needs to be slightly weakened, and the shape of the inner pan is limited to a shape that allows easy peeling of the seal. Further, when a flexible mesh member is stretched on the intermediate dish in a powder container such as a powdery cosmetic, the sealed film member and the flexible mesh member are simultaneously integrated by insert molding , and Until now, there has been no technology that makes it easy to remove the sealed film.

本発明の目的は、開封検知機能を備えた容器の中皿であって、フィルム部材を貼着する必要がなく、安価に製造でき、かつ開封の容易なものを提供することである。本発明の別の目的は、パウダー状化粧料のような粉体収納容器において、柔軟なメッシュ部材と封引用フィルム部材とを中皿の枠体に一体成型する方法を提供することである。 An object of the present invention is to provide a middle dish of a container having an opening detection function, which does not require a film member to be attached, can be manufactured at low cost, and is easy to open. Another object of the present invention is to provide a method for integrally molding a flexible mesh member and a quoted film member into a frame of an intermediate dish in a powder container such as a powdery cosmetic.

請求項１記載の発明は、食品・化粧品等の商品を収納する容器に広く使用可能な開封検知機能付きの中皿であって、伸縮性の小さいフィルム部材を開口部を囲む枠体にインサート成型して一体化し、該フィルム部材を押圧しても容易に剥離せず、枠体の内側の縁に沿って破断するように構成したものである。
The invention according to claim 1 is an intermediate dish with an opening detection function that can be widely used in containers for storing products such as foods and cosmetics, and insert-molding a film member with small stretchability into a frame surrounding the opening Then, even if the film member is pressed, it does not peel easily and is broken along the inner edge of the frame.

この中皿は、予め封引用シールと共に成型され、容器の内側に製品が充填された後、容器の開口部の内側に容易に取り外せないように設置される。フィルム部材は枠体のキャビティの底面に、容易に剥離しないようにインサート成型することが望ましい。従来の製品のように枠体の成型後にフィルムを貼着する工程を設ける必要がなく、使用開始時に摘みを引き起こす等の手間もない。またフィルム部材の周囲が枠体に保持されているので、中皿の設置時に時に枠体が多少たわんでもフィルムにしわがよることがない。この中皿を備えた容器を開封するときは、中皿を露出させたのち中皿の開口部の内側を指で下側に押圧すると、伸縮性の小さいフィルム部材が枠体の内側の縁に沿って破断するので、容易に円形に切取ることができる。
This inner dish is molded together with a quote seal in advance, and after the product is filled inside the container, it is installed so that it cannot be easily removed inside the opening of the container. It is desirable to insert-mold the film member on the bottom surface of the cavity of the frame so as not to easily peel off. There is no need to provide a step of attaching a film after molding of the frame as in the conventional product, and there is no hassle of causing picking at the start of use. Further, since the periphery of the film member is held by the frame body, the film is not wrinkled even if the frame body is slightly bent at the time of installing the inner dish. When opening the container equipped with the inner plate, after exposing the inner plate, press the inner side of the opening of the inner plate downward with your finger, and the film member with low elasticity will be attached to the inner edge of the frame. Since it breaks along, it can be easily cut into a circle.

請求項２記載の発明は、特にパウダー状化粧料のような粉体を収納する容器に使用される開封検知機能付きの中皿であって、伸縮性の小さいフィルム部材と伸縮性の大きいメッシュ部材とを、中皿の装着時にフィルム部材が上側になるように密着させてインサート成型により枠体と一体化し、フィルム部材を押圧するとフィルム部材のみが枠体の内側の縁に沿って破断するように構成したことを特徴とする。
The invention according to claim 2 is an intermediate dish with an opening detection function used in a container for storing powder such as powdery cosmetics, and is a film member having a low elasticity and a mesh member having a high elasticity. Are attached so that the film member is on the upper side when the inner plate is mounted , and is integrated with the frame body by insert molding . When the film member is pressed, only the film member is broken along the inner edge of the frame body. It is characterized by comprising.

この中皿を備えた容器を開封するときは、中皿を露出させたのち中皿の開口部の内側を指で下側に押圧すると、メッシュ部材は柔軟に変形し、伸縮性の小さいフィルム部材のみが枠体の内側の縁に沿って破断する。フィルム部材は破断しても取外すまではメッシュ部材の上に保持されるのでいっそう開封が容易となる。 When opening the container provided with the inner plate, after exposing the inner plate, if the inner side of the opening of the inner plate is pressed downward with a finger, the mesh member is deformed flexibly, and a film member with low elasticity Only break along the inner edge of the frame. Even if the film member is broken, it is held on the mesh member until it is removed, so that the film member can be opened more easily.

請求項３記載の発明は、容器の中皿にフィルム部材をインサートするための成型方法であって、金型により枠体のキャビティを構成する工程と、枠体のキャビティの底部に伸縮性の小さいフィルム部材を載置する工程と、溶融樹脂を射出充填する工程とを有する成型方法により、上記の課題を解決する。キャビティの底部に載置されるフィルム部材は、少なくとも金型の内側の縁及び内側開口部の全体を覆うようにする。長尺シート状のフィルム部材をキャビティ全体を覆うように設置し、脱型時に枠体の周囲部分のみを切り落とす方法が好ましい。 The invention described in claim 3 is a molding method for inserting a film member into the inner dish of the container, and includes a step of forming a cavity of the frame body by a mold, and a low elasticity at the bottom of the cavity of the frame body The above problem is solved by a molding method having a step of placing a film member and a step of injection-filling a molten resin. The film member placed on the bottom of the cavity covers at least the inner edge of the mold and the entire inner opening. A method in which a long sheet-like film member is installed so as to cover the entire cavity, and only the peripheral portion of the frame body is cut off at the time of demolding.

請求項４記載の発明は、特にパウダー状化粧料のような粉体を収納する容器に使用される中皿に予めメッシュ部材とフィルム部材とをインサートするための成型方法であって、金型により枠体のキャビティを構成する工程と、枠体のキャビティの底部に伸縮性の小さいフィルム部材を上側、伸縮性の大きいメッシュ部材が下側となるように載置する工程と、溶融樹脂を射出充填する工程とを有する成型方法により、上記の課題を解決する。 The invention according to claim 4 is a molding method for inserting a mesh member and a film member in advance into an inner dish used in a container for storing powder such as powdery cosmetics. The step of forming the cavity of the frame, the step of placing the film member with low elasticity on the bottom of the cavity of the frame so that the mesh member with high elasticity is on the bottom, and injection filling with molten resin The above-mentioned problem is solved by a molding method having a step of:

フィルム部材の下側に載置されるメッシュ部材を枠体にインサート固定する方法としては、フィルム部材を熱可塑性樹脂で構成して成型時の熱によりメッシュ部材と一体化する方法、金型の形状によりフィルム部材に細かい裂け目を生じさせて溶融樹脂を通過させる方法等がある。
As a method of inserting and fixing the mesh member placed on the lower side of the film member to the frame, a method of forming the film member with a thermoplastic resin and integrating it with the mesh member by heat during molding, the shape of the mold There is a method of causing the molten resin to pass through by causing a fine tear in the film member.

請求項５記載の発明は、請求項３または４記載の成型方法において、前記キャビティ底部を構成する金型（下型）の上面に予め凹凸を設けておくことを特徴とする成型方法により、上記の課題を解決する。フィルム部材が上側に充填された溶融樹脂の圧力により凹凸のある下型に押し付けられた際に、フィルム部材が熱可塑性樹脂で構成されていれば自ら変形し、また紙等であれば不均一な引張力により細かく断裂しその裂け目から溶融樹脂が入り込んで凹凸面に倣って変形する。従って下型が平面である場合よりフィルム部材をしっかり固定できる。
According to a fifth aspect of the present invention, in the molding method according to the third or fourth aspect, the molding method is characterized in that an unevenness is provided in advance on the upper surface of a mold (lower mold) constituting the cavity bottom. Solve the problem. When the film member is pressed against the uneven lower mold by the pressure of the molten resin filled on the upper side, it deforms itself if the film member is made of thermoplastic resin, and is non-uniform if it is paper, etc. It is finely broken by the tensile force, and the molten resin enters from the crack and deforms following the uneven surface. Therefore, the film member can be fixed more firmly than when the lower mold is a flat surface.

フィルム部材及びメッシュ部材を重ねてインサートする場合は、上側に充填された溶融樹脂の圧力により凹凸のある下型に押し付けられた際に、柔軟なメッシュ部材はたわんでキャビティ底面に密着するが伸縮性の小さいフィルム部材は不均一な引張力により細かく断裂し、その裂け目から溶融樹脂がフィルム部材とメッシュ部材の間に入り込んでメッシュ部材の条体を固定する。従ってフィルム部材が熱可塑性を有しない紙等で構成されていても、フィルム部材とメッシュ部材を密着させてインサートすることができる。 When a film member and a mesh member are overlaid and inserted, the flexible mesh member bends and adheres to the bottom of the cavity when pressed against an uneven lower mold by the pressure of the molten resin filled on the upper side, but stretchable The film member having a small thickness is torn finely by a non-uniform tensile force, and the molten resin enters between the film member and the mesh member from the split to fix the strip of the mesh member. Therefore, even if the film member is made of paper or the like that does not have thermoplasticity, the film member and the mesh member can be inserted in close contact.

請求項６記載の方法は、請求項５記載の成型方法において、前記凹凸を多数の放射状のリブとしたものである。溶融樹脂の流れと直角な放射状のリブが多数存在することにより、キャビティ底部に沿う溶融樹脂の流れが抑制され、メッシュ部材の周方向の変形がより小さくなる。また枠体の内側の縁においてフィルム部材に弱い部分ができるので、使用時にフィルムを切り取るのが楽になる。 A method according to a sixth aspect is the molding method according to the fifth aspect, wherein the irregularities are formed into a large number of radial ribs. Due to the presence of many radial ribs perpendicular to the flow of the molten resin, the flow of the molten resin along the bottom of the cavity is suppressed, and the deformation of the mesh member in the circumferential direction becomes smaller. Moreover, since a weak part is made in a film member in the inner edge of a frame, it becomes easy to cut off a film at the time of use.

請求項７記載の発明は、請求項３から６のいずれか１項記載の成型方法において、前記フィルム部材を合成樹脂で構成したものである。請求項８記載の発明は、請求項５又は６の成型方法において、前記フィルム部材を紙で構成したものである。フィルム部材の材料は、商品の性質や容器の形状等に応じて最適なものを選択することができる。 The invention according to claim 7 is the molding method according to any one of claims 3 to 6, wherein the film member is made of a synthetic resin. The invention according to claim 8 is the molding method according to claim 5 or 6, wherein the film member is made of paper. As the material for the film member, an optimum material can be selected according to the property of the product, the shape of the container, and the like.

以下、図面を参照しながら、本発明の具体的な実施形態について説明する。 Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

本発明の全体構成を図１に基づいて説明する。図１は、本発明の張設方法によりメッシュを張設した中皿を備える化粧用コンパクト容器の分解斜視図である。上面を開口した透明な有底円筒形の容器本体１の内部にはパウダー化粧料２が収納される。容器本体１の上面開口には、環状の枠体５と、その開口部の下側の面に密着状態で張設された柔軟なメッシュ部材６と非伸縮性で気密性のあるフィルム部材７からなる中皿が内嵌固定されている。また容器本体１の上部外面には不図示の螺条が設けられ外蓋４がねじ込みにより外嵌される。中皿３と外蓋４の間にはパフ８が収納される。 The overall configuration of the present invention will be described with reference to FIG. FIG. 1 is an exploded perspective view of a cosmetic compact container including an inner tray in which a mesh is stretched by the tensioning method of the present invention. A powder cosmetic 2 is housed inside a transparent bottomed cylindrical container body 1 having an open upper surface. The upper surface opening of the container body 1 includes an annular frame 5, a flexible mesh member 6 stretched in close contact with the lower surface of the opening, and a non-stretchable and airtight film member 7. The inner plate is fixedly fitted inside. A screw thread (not shown) is provided on the upper outer surface of the container body 1, and the outer lid 4 is fitted by screwing. A puff 8 is accommodated between the inner tray 3 and the outer lid 4.

使用者は外蓋４を回して容器を開けてパフを取り出した後、図２のように中皿の開口に張設されたメッシュ部材６とフィルム部材７とを下側へ押込むと、非伸縮性のフィルム部材７のみが開口縁部に沿って破断するので、フィルム部材７を円形に切り取って中皿３から取り外しメッシュ部材６を露出させることができる。その後はメッシュ部材６の網目の上からパフ８で拭うことにより容器に収容されたパウダー化粧料を適量ずつ取り出して使用することができる。 After the user turns the outer lid 4 to open the container and takes out the puff, as shown in FIG. 2, when the mesh member 6 and the film member 7 stretched on the opening of the inner dish are pushed down, Since only the stretchable film member 7 is broken along the opening edge, the film member 7 can be cut out in a circular shape and removed from the inner tray 3 to expose the mesh member 6. Thereafter, by wiping with a puff 8 from the mesh of the mesh member 6, an appropriate amount of the powder cosmetic contained in the container can be taken out and used.

図３は、上記の全体構成を実現するための中皿３の外周部の構成の一例を示す縦断面図である。中皿３は軟質の合成樹脂からなる枠体５と、きわめて柔軟な網状組織で構成されたメッシュ部材６と、非伸縮性かつ熱可塑性を有する合成樹脂製のフィルム部材７’からなる。略円筒形の枠本体５ａの外面は、容器本体１の内面とほぼ同径であり、側面には不図示の係合用突条を有する。枠本体５ａの上部は外側へ広がって容器本体１の外周上端部に当接保持されるつば部５ｂを形成し、下部は内側へ延出してメッシュ部材の張設のための縁部５ｃを形成している。中皿３の平面形状は容器の形状に合わせて様々な形状とすることができるが、縁部５ｃはフィルムを切取りやすいよう滑らかな曲線状であることが好ましい。縁部５ｃの下面に沿ってフィルム部材７’とメッシュ部材６とが上下に重ねて張設され中皿３の下側開口部を覆っている。 FIG. 3 is a longitudinal sectional view showing an example of the configuration of the outer peripheral portion of the inner tray 3 for realizing the above overall configuration. The intermediate dish 3 includes a frame 5 made of a soft synthetic resin, a mesh member 6 composed of a very flexible network, and a non-stretchable and thermoplastic synthetic resin film member 7 '. The outer surface of the substantially cylindrical frame main body 5a has substantially the same diameter as the inner surface of the container main body 1, and has an engaging protrusion (not shown) on the side surface. The upper part of the frame body 5a spreads outward to form a collar part 5b that is held in contact with the upper end of the outer periphery of the container body 1, and the lower part extends inward to form an edge part 5c for stretching the mesh member. doing. The planar shape of the inner tray 3 can be various shapes according to the shape of the container, but the edge portion 5c is preferably a smooth curved shape so that the film can be easily cut. A film member 7 ′ and a mesh member 6 are stretched in the vertical direction along the lower surface of the edge portion 5 c to cover the lower opening of the inner tray 3.

図４は図３の合成樹脂製枠体５を射出成型する際に、インサート成型によりメッシュ部材６とフィルム部材７’を張設して一体化させるために使用する金型１０の縦断面図である。金型は、成形が行なわれる枠体３の形に合わせて加工されたキャビティＣを取り囲むように、略円筒状の中央上型１１と中央下型１２、及び略リング状の周囲上型１３と周囲下型１４とから構成されている。中央上型１１にはキャビティＣ内に溶融樹脂を射出充填するための射出口１１ａが設けられているが、射出口１１ａは図に示された位置には限らず、断面内の別の位置にあっても良い。周囲上型１３と周囲下型１４の間には０．１ｍｍ程度の隙間が設けられている。 FIG. 4 is a longitudinal sectional view of a mold 10 used to stretch and integrate the mesh member 6 and the film member 7 ′ by insert molding when the synthetic resin frame 5 of FIG. 3 is injection-molded. is there. The molds are a substantially cylindrical central upper mold 11 and a central lower mold 12 and a substantially ring-shaped peripheral upper mold 13 so as to surround a cavity C processed in accordance with the shape of the frame 3 to be molded. It is composed of a surrounding lower mold 14. The center upper mold 11 is provided with an injection port 11a for injecting and filling the molten resin into the cavity C. However, the injection port 11a is not limited to the position shown in the figure, but at another position in the cross section. There may be. A gap of about 0.1 mm is provided between the upper peripheral mold 13 and the lower peripheral mold 14.

本実施例においてメッシュ部材６を金型１０に設置する手順を説明すると、まず中央下型１２と周囲下型１４をセットし、不図示の供給手段からメッシュ部材６及びフィルム部材７’を繰り出してキャビティＣ全体を覆うように戴置する。この時、メッシュ部材６の周囲は中央下型１２から外側にはみ出した状態となる。この状態で上方から周囲上型１３をセットすると、メッシュ部材６及びフィルム部材７’のキャビティＣ周囲にはみ出した部分は周囲上型１３と周囲下型１４の間に挟まれて保持される。 In this embodiment, the procedure for installing the mesh member 6 on the mold 10 will be described. First, the central lower mold 12 and the peripheral lower mold 14 are set, and the mesh member 6 and the film member 7 'are fed out from a supply means (not shown). Placed so as to cover the entire cavity C. At this time, the periphery of the mesh member 6 protrudes outward from the central lower mold 12. When the upper peripheral mold 13 is set from above in this state, the portions of the mesh member 6 and the film member 7 ′ that protrude from the periphery of the cavity C are sandwiched and held between the upper peripheral mold 13 and the lower peripheral mold 14.

次に上方から中央上型１１をセットすると、メッシュ部材６及びフィルム部材７’の中央部が中央上型１１の下面と中央下型１２の上面の間に挟まれて固定され、またキャビティＣの全体が形成される。そして形成されたキャビティＣに対し、中央上型１１の２ヶ所に設けた射出口１１ａを通して溶融樹脂Ｐを射出充填すると、溶融樹脂Ｐは射出口１１ａの位置より図５矢印Ｐのように両側へ流れ、キャビティＣに沿って環状に回り込みながら全体へ充填される。このときフィルム部材７’は溶融樹脂Ｐの熱により変形し、フィルム部材７’自体又はフィルム部材７’を貫通した溶融樹脂Ｐの一部がメッシュ部材６の条体の間に入り込んで冷却される。フィルム部材７’があることにより、溶融樹脂の流れに押されてメッシュ部材６が周方向に変形することも防止される。 Next, when the central upper mold 11 is set from above, the central portions of the mesh member 6 and the film member 7 ′ are sandwiched and fixed between the lower surface of the central upper mold 11 and the upper surface of the central lower mold 12. The whole is formed. When the molten resin P is injected and filled into the formed cavity C through the injection ports 11a provided at two locations of the central upper mold 11, the molten resin P moves from the position of the injection port 11a to both sides as indicated by an arrow P in FIG. It flows and fills the whole as it wraps around the cavity C in an annular shape. At this time, the film member 7 ′ is deformed by the heat of the molten resin P, and the film member 7 ′ itself or a part of the molten resin P passing through the film member 7 ′ enters between the strips of the mesh member 6 and is cooled. . The presence of the film member 7 ′ prevents the mesh member 6 from being deformed in the circumferential direction by being pushed by the flow of the molten resin.

このようにして枠体５が成形された後、中央上型１１を上方へ移動させて取り外し、さらに中央下型１２を上方に突き出すと、メッシュ部材６及びフィルム部材７’のキャビティ周囲にはみ出した部分は、周囲上型１３と周囲下型１４の間で固化した合成樹脂の一部分と共に、中央下型１２の周囲で切り落とされる。従って枠体５の縁からメッシュ部材６及びフィルム部材７’の一部が飛び出して製品の外観を損なうことが防がれる。メッシュ部材６及びフィルム部材７’の周囲は成型後にカッターによって切落とすようにしてもよい。またメッシュ部材６及びフィルム部材７’を連続的に繰り出すのでなく、予め円形に打ち抜いた部材を金型内に配置するようにしてもよい。 After the frame body 5 is molded in this manner, the central upper mold 11 is moved upward and removed, and when the central lower mold 12 is protruded upward, it protrudes around the cavities of the mesh member 6 and the film member 7 ′. The portion is cut off around the central lower mold 12 together with a part of the synthetic resin solidified between the upper peripheral mold 13 and the lower peripheral mold 14. Accordingly, it is possible to prevent a part of the mesh member 6 and the film member 7 ′ from protruding from the edge of the frame body 5 to impair the appearance of the product. The periphery of the mesh member 6 and the film member 7 'may be cut off by a cutter after molding. Further, instead of continuously feeding out the mesh member 6 and the film member 7 ', a member punched in advance in a circle may be arranged in the mold.

図６は中皿３の別の実施例を示す縦断面図である。本実施例のフィルム部材７は非伸縮性で断裂しやすい材料、例えば表面加工された紙からなるフィルム部材７’’である。本実施例では、縁部５ｃの下面には多数の放射状の溝５ｄが等角度間隔で形成されており、この縁部５ｃの下面に沿ってメッシュ部材６が張設されて中皿３の下側開口部を覆っている。この実施例に係る中皿も、実施例１と同様の手順でフィルム部材を円形に切り取って開封することが出来る。 FIG. 6 is a longitudinal sectional view showing another embodiment of the inner tray 3. The film member 7 of the present embodiment is a non-stretchable and easily tearable material, for example, a film member 7 ″ made of surface-treated paper. In the present embodiment, a large number of radial grooves 5d are formed at equiangular intervals on the lower surface of the edge portion 5c, and a mesh member 6 is stretched along the lower surface of the edge portion 5c to Covers the side opening. The inner plate according to this embodiment can be opened by cutting the film member into a circular shape in the same procedure as in the first embodiment.

本実施例に係る中皿３の成型方法を説明する。図７は図６の合成樹脂製枠体５を射出成型する際に、インサート成型によりメッシュ部材６及びフィルム部材７’’を張設して一体化させるために使用する金型２０の縦断面図であり、中央上型２１，中央下型２２、周囲上型２３，周囲下型２４の形状は実施例１の対応する成形型と同様である。中央下型２２の上面には、径方向に短い放射状のリブ２２ｂが多数設けられ、その上に不図示の供給手段から繰り出された紙製のフィルム部材７’’及びメッシュ部材６が載置される。本実施例では、縁部５ｃの幅６ｍｍに対して各リブ２２ｂの長さが３．５ｍｍ程度であり、また幅は１ｍｍ、高さは１ｍｍ程度である。各リブは中皿の中心に対して６°毎に１つずつ配置されており、隣接するリブの間隔は３ｍｍ程度である。 A method for forming the inner tray 3 according to the present embodiment will be described. FIG. 7 is a longitudinal sectional view of a mold 20 used for stretching and integrating the mesh member 6 and the film member 7 ″ by insert molding when the synthetic resin frame 5 of FIG. 6 is injection-molded. The shapes of the central upper die 21, the central lower die 22, the peripheral upper die 23, and the peripheral lower die 24 are the same as the corresponding forming die of the first embodiment. A large number of radial radial ribs 22b are provided on the upper surface of the central lower mold 22, and a paper film member 7 '' and a mesh member 6 fed from a supply means (not shown) are placed thereon. The In this embodiment, the length of each rib 22b is about 3.5 mm, the width is about 1 mm, and the height is about 1 mm with respect to the width of 6 mm of the edge portion 5c. Each rib is arranged at intervals of 6 ° with respect to the center of the middle dish, and the interval between adjacent ribs is about 3 mm.

図８、図９は実施例２の成型工程におけるメッシュ部材６及びフィルム部材７’’の配置と溶融樹脂の流れを示す説明図である。図９において左側から射出された溶融樹脂Ｐは、右側へ向かって流れながら中央下型２２の上面のリブ２２ｂに重ねて戴置されたフィルム部材７’’及びメッシュ部材６をリブ２２ｂの間へ押し込む。フィルム部材７’’は非伸縮性であるから、溶融樹脂Ｐの圧力によりリブ１２ｂに沿って細かい裂け目を生じ、そこから溶融樹脂Ｐがフィルム部材７’’の下側へ入り込みメッシュ条体６を固定する。リブ２２ｂの上側で後から射出された溶融樹脂ＰのキャビティＣに沿う流れが続いている間も、フィルム部材７’’及びメッシュ条体６はその場に保持され、メッシュ部材６の周方向の変形が防止される。 8 and 9 are explanatory views showing the arrangement of the mesh member 6 and the film member 7 '' and the flow of the molten resin in the molding process of the second embodiment. In FIG. 9, the molten resin P injected from the left side flows toward the right side, and the film member 7 ″ and the mesh member 6 placed on the rib 22b on the upper surface of the central lower mold 22 are placed between the ribs 22b. Push in. Since the film member 7 ″ is non-stretchable, a fine tear is produced along the rib 12b by the pressure of the molten resin P, and the molten resin P enters the lower side of the film member 7 ″ from there to form the mesh strip 6 Fix it. While the flow of the molten resin P injected later on the upper side of the rib 22b along the cavity C continues, the film member 7 '' and the mesh strip 6 are held in place, and the circumferential direction of the mesh member 6 is increased. Deformation is prevented.

このようにして枠体５が成形された後、中央上型２１を上方へ移動させて取り外し、さらに中央下型２２を上方に突き出すと、メッシュ部材６及びフィルム部材７’’のキャビティ周囲にはみ出した部分は、周囲上型２３と周囲下型２４の間で固化した合成樹脂の一部分と共に、中央下型２２の周囲で切り落とされる。 After the frame body 5 is formed in this way, the central upper mold 21 is moved upward to be removed, and further the central lower mold 22 is protruded upward, so that it protrudes around the cavities of the mesh member 6 and the film member 7 ''. The part is cut off around the central lower mold 22 together with a part of the synthetic resin solidified between the peripheral upper mold 23 and the lower peripheral mold 24.

本実施例のフィルム部材７’’の材料は紙に限らず、例えば合成樹脂や金属箔など様々なものを使用できる。 The material of the film member 7 ″ in this embodiment is not limited to paper, and various materials such as synthetic resin and metal foil can be used.

封引用フィルムと柔軟なメッシュの両方を備える中皿は、化粧料に限らず粉体収納容器の開封検知手段として広く利用することができる。また一般の食品・化粧品等の容器でメッシュを設置せず封引用フィルムのみを備える場合についても、上記の説明に基づいて容易に実施できる。 The intermediate dish provided with both the sealing film and the flexible mesh can be widely used not only as a cosmetic but also as an opening detection means of the powder container. Moreover, it can implement easily based on said description also about the case provided with only a sealing film, without installing a mesh with containers, such as general food and cosmetics.

以上説明したように、本発明の中皿及び成型方法により、封引用フィルムを備え、開封が容易であり外観上も優れた食品・化粧品等の容器の中皿を低コストで製造できるので、産業上大きな利用可能性がある。 As described above, according to the middle dish and the molding method of the present invention, it is possible to produce a middle dish of a container such as a food / cosmetic container that is provided with a sealing film, is easy to open, and is excellent in appearance. There is a great potential for use.

本発明の中皿を備える化粧用コンパクト容器の分解斜視図The exploded perspective view of the compact container for makeup provided with the middle plate of the present invention 中皿の開封方法を示す説明図Explanatory drawing which shows the opening method of a pan 実施例１に係る中皿の外周部の縦断面図The longitudinal cross-sectional view of the outer peripheral part of the saucer concerning Example 1 図３の中皿の成形型の配置を示す縦断面図FIG. 3 is a longitudinal sectional view showing the arrangement of the mold for forming the middle dish 実施例１に係る中皿の成型時の溶融樹脂の流れを示す説明図Explanatory drawing which shows the flow of the molten resin at the time of shaping | molding of the inner tray which concerns on Example 1. FIG. 実施例２に係る中皿の外周部の縦断面図The longitudinal cross-sectional view of the outer peripheral part of the saucer concerning Example 2 図６の中皿の成形型の配置を示す縦断面図FIG. 6 is a vertical cross-sectional view showing the arrangement of the mold of the middle dish 実施例２に係る中皿の成型時の溶融樹脂の流れを示す説明図Explanatory drawing which shows the flow of the molten resin at the time of shaping | molding of the inner tray which concerns on Example 2. FIG. 図９のＢ−Ｂ部分における縦断面図FIG. 9 is a longitudinal sectional view taken along the line BB in FIG.

１容器本体
２化粧料
３中皿
４外蓋
５枠体
５ａ枠本体
５ｂつば部
５ｃ縁部
６メッシュ部材
７フィルム部材
７’ 合成樹脂製フィルム
７’’ 紙製フィルム
８パフ
１０，２０金型
１１，２１中央上型
１１ａ，２１ａ射出口
１２，２２中央下型
２２ｂリブ
１３，２３周囲上型
１４，２４周囲下型
Ｃキャビティ
Ｐ溶融樹脂 DESCRIPTION OF SYMBOLS 1 Container body 2 Cosmetic material 3 Middle dish 4 Outer lid 5 Frame body 5a Frame body 5b Collar part 5c Edge part 6 Mesh member 7 Film member 7 'Synthetic resin film 7 "Paper film 8 Puff 10, 20 Mold 11 , 21 Center upper die 11a, 21a Injection port 12, 22 Center lower die 22b Rib 13, 23 Perimeter upper die 14, 24 Perimeter lower die C Cavity P Molten resin

Claims

伸縮性の小さいフィルム部材を開口部を囲む枠体にインサート成型により一体化し、該フィルム部材を上から押圧すると枠体の内側の縁に沿って破断するように構成した、開封検知機能付き中皿。
A film member with small stretchability is integrated with the frame surrounding the opening by insert molding , and is configured to break along the inner edge of the frame when pressed from above. dish.

伸縮性の小さいフィルム部材と伸縮性の大きいメッシュ部材とを、開口部を囲む枠体の下面に沿ってフィルム部材が上側になるように密着させてインサート成型により枠体と一体化し、該フィルム部材を上から押圧するとフィルム部材のみが枠体の内側の縁に沿って破断するように構成した、開封検知機能付き中皿。
A film member having a low elasticity and a mesh member having a high elasticity are brought into close contact with the lower surface of the frame body surrounding the opening so that the film member is on the upper side, and integrated with the frame body by insert molding. An inner tray with an opening detection function configured such that when the member is pressed from above, only the film member is broken along the inner edge of the frame.

金型により枠体のキャビティを構成する工程と、枠体のキャビティの底部に伸縮性の小さいフィルム部材を載置する工程と、溶融樹脂を射出充填する工程とを有する、請求項１記載の中皿の成型方法。 2. The method according to claim 1, comprising: a step of forming a cavity of the frame body with a mold; a step of placing a film member having low elasticity on the bottom of the cavity of the frame body; and a step of injecting and filling molten resin. Dish molding method.

金型により枠体のキャビティを構成する工程と、枠体のキャビティの底部に伸縮性の小さいフィルム部材を上側、伸縮性の大きいメッシュ部材が下側となるように載置する工程と、溶融樹脂を射出充填する工程とを有する、請求項２記載の中皿の成型方法。 A step of forming a frame cavity with a mold, a step of placing a film member having low elasticity on the bottom of the cavity of the frame body, and a mesh member having high elasticity on the bottom, and a molten resin 3. A method for forming an intermediate dish according to claim 2, further comprising a step of injection-filling.

前記キャビティ底部を構成する金型の上面に予め凹凸を設けておくことを特徴とする請求項３又は４記載の成型方法。 5. The molding method according to claim 3, wherein irregularities are provided in advance on the upper surface of a mold constituting the cavity bottom.

前記凹凸が多数の放射状のリブであることを特徴とする請求項５記載の成型方法。 The molding method according to claim 5, wherein the unevenness is a large number of radial ribs.

前記フィルム部材が合成樹脂製であることを特徴とする請求項３から６のいずれか１項記載の成型方法。 The molding method according to claim 3, wherein the film member is made of a synthetic resin.

前記フィルム部材が紙製であることを特徴とする請求項５又は６記載の成型方法。
The molding method according to claim 5 or 6, wherein the film member is made of paper.