JPWO2005113359A1

JPWO2005113359A1 - container

Info

Publication number: JPWO2005113359A1
Application number: JP2006513732A
Authority: JP
Inventors: 鯉太郎小沼
Original assignee: POLYMER SYSTEMS Co Ltd
Current assignee: POLYMER SYSTEMS Co Ltd
Priority date: 2004-05-24
Filing date: 2005-05-20
Publication date: 2008-03-27
Anticipated expiration: 2025-05-20
Also published as: WO2005113359A1; JP4374018B2

Abstract

筒部（収容部）２を、内側筒部２Ａとこの内側筒部２Ａの外側に設けられた外側筒部２Ｂとから構成する。内側筒部２Ａは、積層フィルム５によって構成する。外側筒部２Ｂは、積層フィルム５と別部材である積層体６によって構成する。これにより、内側筒部２と外側筒部２Ｂと相対移動可能にする。The tubular portion (accommodation portion) 2 includes an inner tubular portion 2A and an outer tubular portion 2B provided outside the inner tubular portion 2A. The inner tubular portion 2A is composed of the laminated film 5. The outer tubular portion 2B is composed of a laminated body 6 which is a separate member from the laminated film 5. As a result, the inner cylinder portion 2 and the outer cylinder portion 2B can be moved relative to each other.

Description

この発明は、例えば吐出ガン用のカートリッジやバケツとして用いられる容器、特に液状の流動性を有する接着剤や塗料を収容するのに好適な容器に関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container used as, for example, a cartridge for a discharge gun or a bucket, and particularly to a container suitable for accommodating a liquid fluid adhesive or paint.

一般に、吐出ガン用のカートリッジは、両端が開口した円筒状をなす筒体（収容部）と、この筒体の一端部外周面に固定された補強リングと、筒体の他端開口部を閉じる底部とを有している。筒体は、樹脂フィルムやアルミニウムの箔体などを互いに接着してなる積層体によって構成されている。
特開平１０―２７８９７６号公報 Generally, a cartridge for a discharge gun closes a cylindrical tubular body (accommodation portion) having both ends opened, a reinforcing ring fixed to an outer peripheral surface of one end of the tubular body, and an opening of the other end of the tubular body. And a bottom. The tubular body is composed of a laminated body formed by adhering resin films, aluminum foil bodies, and the like to each other.
JP-A-10-278976

上記従来のカートリッジにおいては、積層体を構成する樹脂フィルムやアルミニウム箔が互いに固着されて一体化されている。このため、筒体の外面に擦過傷、その他の傷が発生すると、その傷が積層体を構成する樹脂フィルムやアルミニウム箔を伝播して筒体の内面まで進行し、筒体が破れるおそれがあった。 In the above-mentioned conventional cartridge, the resin film and the aluminum foil forming the laminated body are fixed and integrated with each other. Therefore, when the outer surface of the cylinder is scratched or otherwise scratched, the scratch propagates through the resin film or the aluminum foil forming the laminate to the inner surface of the cylinder, and the cylinder may be broken. ..

この発明は、上記の問題を解決するために、柔軟性を有する膜体からなる一端が開口した収容部と、この収容部の他端部に設けられて当該他端部を閉じる底部とを備えた容器において、上記収容部が、それぞれ柔軟性を有する膜体からなる内側収容部及び外側収容部とを有し、上記外側収容部が上記内側収容部の外側に配置され、上記内側収容部と上記外側収容部とが相対移動可能であることを特徴としている。
この場合、上記内側収容部と外側収容部とが別体に形成されていることが望ましい。
上記内側収容部を構成する膜体として樹脂を共押出し成形してなる積層フィルムが用いられ、上記外側収容部を構成する膜体として、樹脂フィルム及びこの樹脂フィルムの内側に接着されたアルミニウムの箔体を有する積層体が用いられていることが望ましい。
上記内側収容部及び上記外側収容部が、両端部が開口した筒体として形成され、上記底部が上記内側収容部及び上記外側収容部と別体に形成され、上記内側収容部及び上記外側収容部の一端部に補強リングが固定され、上記内側収容部及び上記外側収容部の他端部に上記底部が固定され、上記補強リングが上記内側収容部及び上記外側収容部の一端部を一定の形状に維持するための所定の強度を有し、上記底部が上記内側収容部及び上記外側収容部の他端部を一定の形状に維持するための所定の強度を有していることが望ましい。
上記内側収容部が樹脂を共押出し成形してなる積層フィルムによって構成され、上記外側収容部が樹脂フィルム及びこの樹脂フィルムの内側に接着されたアルミニウムの箔体を有する積層体によって構成されていることが望ましい。
上記内側収容部が上記外側収容部より長く形成され、上記内側収容部の両端部が上記外側収容部の両端部からそれぞれ外側に突出させられ、上記底部の上記収容部側の端面に環状突出部が形成され、上記補強リングの内周面に上記外側収容部の一端部及び上記外側収容部から突出した上記内側収容部の一端部がそれぞれ固着され、上記底部の上記環状突出部の内周面に上記外側収容部の他端部及び上記外側収容部から突出した他端部がそれぞれ固着されていることが望ましい。
上記外側収容部の柔軟性が上記内側収容部の柔軟性より低く設定されていることが望ましい。
上記内側収容部及び上記外側収容部が、両端部が開口した筒体として形成され、上記底部が上記内側収容部及び上記外側収容部と別体に形成され、上記内側収容部の一端部に補強リングが固定され、上記内側収容部の他端部に上記底部が固定され、上記外側収容部が上記補強リング及び上記底部に対して上記外側収容部の長手方向へ移動可能とされ、上記外側収容部の一端面及び他端面が上記補強リング及び上記底部にそれぞれ突き当てられ、上記補強リングが、その径方向へ変形するための所定の柔軟性と、上記内側筒部の一端部を一定の形状に維持するための所定の強度とを兼ね備えていることが望ましい。
上記内側収容部及び上記外側収容部が、両端が開口した筒体として形成され、上記底部が上記内側収容部及び上記外側収容部と別体に形成され、上記内側収容部の一端部外周面に、上記内側収容部の一端開口部を閉じる蓋体が固着され、上記内側収容部の他端部外周面に第２補強リングが固着され、上記底部が上記内側収容部の他端部内周面に上記内側収容部の長手方向へ移動可能に、かつ封止状態で嵌合され、上記蓋体には上記内側収容部の内部に収容された収容物を外部に吐出させるための吐出口が形成されていることが望ましい。
上記外側収容部の柔軟性が上記内側収容部の柔軟性より低く設定されていることが望ましい。
上記内側収容部の一端部が上記外側収容部の一端部から突出させられており、上記内側収容部の上記外側収容部から突出した一端部が上記蓋体の内周面に固着され、上記外側収容部の一端部が上記内側収容部の外周面と上記蓋体の内周面との間に上記内側収容部の長手方向へ移動可能に挿入されていることが望ましい。In order to solve the above-mentioned problems, the present invention comprises a housing part made of a flexible film body with one end opened, and a bottom part provided at the other end part of the housing part and closing the other end part. In the container described above, the accommodating section has an inner accommodating section and an outer accommodating section each made of a flexible film body, the outer accommodating section is disposed outside the inner accommodating section, and the inner accommodating section is provided. It is characterized in that it can move relative to the outer housing portion.
In this case, it is desirable that the inner housing portion and the outer housing portion are formed separately.
A laminated film formed by co-extruding a resin is used as the film body forming the inner housing portion, and a resin film and an aluminum foil bonded to the inside of the resin film are used as the film body forming the outer housing portion. It is desirable that a laminate having a body be used.
The inner accommodating portion and the outer accommodating portion are formed as a tubular body with both ends open, the bottom portion is formed separately from the inner accommodating portion and the outer accommodating portion, and the inner accommodating portion and the outer accommodating portion are formed. A reinforcing ring is fixed to one end portion of the inner housing portion and the other end portion of the outer housing portion is fixed to the bottom portion, the reinforcing ring has a fixed shape one end portion of the inner housing portion and the outer housing portion. It is preferable that the bottom portion has a predetermined strength for maintaining the other end portions of the inner accommodation portion and the outer accommodation portion in a constant shape.
The inner housing portion is composed of a laminated film formed by co-extruding a resin, and the outer housing portion is composed of a laminated body having a resin film and an aluminum foil bonded to the inside of the resin film. Is desirable.
The inner accommodating portion is formed to be longer than the outer accommodating portion, both ends of the inner accommodating portion are projected outward from both end portions of the outer accommodating portion, and an annular protrusion is formed on an end surface of the bottom portion on the accommodating portion side. Is formed, one end of the outer accommodation portion and one end of the inner accommodation portion protruding from the outer accommodation portion are respectively fixed to the inner circumferential surface of the reinforcing ring, and the inner circumferential surface of the annular protrusion of the bottom portion is formed. It is desirable that the other end portion of the outer housing portion and the other end portion projecting from the outer housing portion are fixed to each other.
It is desirable that the flexibility of the outer housing portion is set lower than the flexibility of the inner housing portion.
The inner accommodating portion and the outer accommodating portion are formed as a cylindrical body with both ends open, the bottom portion is formed separately from the inner accommodating portion and the outer accommodating portion, and one end of the inner accommodating portion is reinforced. A ring is fixed, the bottom portion is fixed to the other end of the inner accommodation portion, the outer accommodation portion is movable in the longitudinal direction of the outer accommodation portion with respect to the reinforcing ring and the bottom portion, and the outer accommodation portion One end surface and the other end surface of the portion are abutted against the reinforcing ring and the bottom portion, respectively, and the reinforcing ring has a predetermined flexibility for deforming in the radial direction and one end portion of the inner tubular portion having a constant shape. It is desirable to have a predetermined strength for maintaining.
The inner accommodating portion and the outer accommodating portion are formed as a tubular body with both ends open, the bottom portion is formed separately from the inner accommodating portion and the outer accommodating portion, and the outer peripheral surface of one end of the inner accommodating portion is formed. A lid that closes the one end opening of the inner accommodation portion is fixed, a second reinforcing ring is fixed to the outer peripheral surface of the other end of the inner accommodation portion, and the bottom portion is on the inner peripheral surface of the other end of the inner accommodation portion. A discharge port is formed in the lid body so as to be movable in the longitudinal direction of the inner housing portion and fitted in a sealed state, and through which the contents stored in the inner housing portion are discharged to the outside. Is desirable.
It is desirable that the flexibility of the outer housing portion be set lower than the flexibility of the inner housing portion.
One end portion of the inner housing portion is projected from one end portion of the outer housing portion, and one end portion of the inner housing portion protruding from the outer housing portion is fixed to an inner peripheral surface of the lid body, It is desirable that one end portion of the accommodation portion is inserted between the outer peripheral surface of the inner accommodation portion and the inner peripheral surface of the lid so as to be movable in the longitudinal direction of the inner accommodation portion.

上記特徴構成を有するこの発明によれば、収容部を構成する内側収容部と外側収容部とが相対移動可能であるから、外側収容部の外面に傷が発生した場合、その傷によって破れるおそれがあるのは外側収容部だけであり、当該傷が内側収容部まで進行することがない。したがって、内側収容部が破れるのを防止することができる。よって、収容部内に収容された収容物が外部に漏れ出るのを防止することができる。 According to the present invention having the above-mentioned characteristic configuration, since the inner housing portion and the outer housing portion that form the housing portion are movable relative to each other, when a scratch is generated on the outer surface of the outer housing portion, there is a risk of being broken by the scratch. There is only the outer storage part, and the scratch does not propagate to the inner storage part. Therefore, it is possible to prevent the inner housing portion from breaking. Therefore, it is possible to prevent the contents stored in the storage unit from leaking to the outside.

この発明の第１実施の形態の一部を省略して示す正面図である。It is a front view which abbreviate|omits a part of 1st Embodiment of this invention. 同実施の形態の縦断正面図である。It is a vertical cross-sectional front view of the same embodiment. 図２のＸ−Ｘ線に沿う断面図である。It is sectional drawing which follows the XX line of FIG. 図３のＸ円部の拡大図である。FIG. 4 is an enlarged view of an X circle portion of FIG. 3. 図３のＹ円部の拡大図である。4 is an enlarged view of a Y circle portion of FIG. 3. FIG. 同実施の形態の内側筒部を構成する積層フィルムの両端部の張り合わせ方の他の例を示す拡大断面図である。FIG. 11 is an enlarged cross-sectional view showing another example of how to attach both end portions of the laminated film forming the inner tubular portion of the embodiment. 図２のＹ円部の拡大図である。FIG. 3 is an enlarged view of a Y circle portion of FIG. 2. 図２のＺ円部の拡大図である。FIG. 3 is an enlarged view of a Z circle portion of FIG. 2. この発明の第２実施の形態を示す正断面図である。It is a front sectional view showing a 2nd embodiment of this invention. 図９のＸ円部の拡大図である。It is an enlarged view of the X circle part of FIG. 図９のＹ円部の拡大図である。It is an enlarged view of the Y-circle part of FIG. この発明の第３実施の形態の一部を示す図１０と同様の断面図である。It is sectional drawing similar to FIG. 10 which shows a part of 3rd Embodiment of this invention. 同実施の形態の他の一部を示す図１１と同様の断面図である。FIG. 12 is a cross-sectional view similar to FIG. 11 showing another part of the same embodiment. この発明の第４実施の形態の一部を省略して示す正断面図である。It is a front sectional view which abbreviate|omits a part of 4th Embodiment of this invention. 図１４のＸ円部の拡大図である。It is an enlarged view of the X circle part of FIG. 図１４のＹ円部の拡大図である。It is an enlarged view of the Y circle part of FIG.

Explanation of symbols

１カートリッジ（容器）
１Ａ容器
１Ｂカートリッジ（容器）
２筒部（収容部）
２Ａ内側筒部（内側収容部）
２Ｂ外側筒部（外側収容部）
２ａ（内側筒部）の先端部
２ｂ（外側筒部）の先端部
２ｃ（内側筒部）の後端部
２ｄ（外側筒部）の後端部
３補強リング
４底部
４ｂ環状突出部
５積層フィルム（膜体）
６積層体（膜体）
８蓋体
８ｆ吐出口
９第２補強リング
１０プランジャ（底部）
６１第１層（樹脂フィルム）
６２第２層（アルミニウムの箔体1 cartridge (container)
1A container 1B cartridge (container)
2 Cylinder (container)
2A Inner tube part (inner housing part)
2B Outer cylinder part (outer housing part)
2a (inner tubular portion) tip portion 2b (outer tubular portion) tip portion 2c (inner tubular portion) rear end portion 2d (outer tubular portion) rear end portion 3 reinforcing ring 4 bottom portion 4b annular protruding portion 5 laminated film (Membrane body)
6 Laminate (membrane)
8 Lid 8f Discharge Port 9 Second Reinforcing Ring 10 Plunger (Bottom)
61 First layer (resin film)
62 Second layer (aluminum foil body)

以下、この発明を実施するための最良の形態を、図面を参照して説明する。
図１及び図２は、この発明の一実施の形態を示す。この実施の形態は、この発明を吐出ガン用カートリッジ（容器）１に適用したものである。カートリッジ１の内部には、ポリアミド、変性ポリアミン等のエポキシ樹脂系接着剤及びその硬化材、反応型アクリル樹脂系接着剤及びその硬化材等流動性物質が収容される。勿論、この発明は、塗料を収容する吐出ガン用カートリッジや、上記のような接着剤又は塗料を収容するバケツやペール缶っ等にも適用可能である。Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
1 and 2 show an embodiment of the present invention. In this embodiment, the present invention is applied to a discharge gun cartridge (container) 1. Inside the cartridge 1, a flowable substance such as an epoxy resin adhesive such as polyamide or modified polyamine and its curing material, a reactive acrylic resin adhesive and its curing material are stored. Of course, the present invention can also be applied to a discharge gun cartridge for containing paint, a bucket, a pail can, etc. for containing the adhesive or paint as described above.

カートリッジ１は、両端が開口した筒部（収容部）２と、この筒部２の一端部（図１，２において左端部。以下、先端部という。）外周面に嵌合固定された補強リング３と、筒部２の他端部（図１，２において右端部。以下、後端部という。）外周面に嵌合固定された底部４とを備えている。 The cartridge 1 includes a tubular portion (accommodation portion) 2 having both ends open, and a reinforcing ring fitted and fixed to an outer peripheral surface of one end portion (left end portion in FIGS. 1 and 2; hereinafter referred to as a tip portion) of the tubular portion 2. 3 and a bottom portion 4 fitted and fixed to the outer peripheral surface of the other end portion (right end portion in FIGS. 1 and 2, hereinafter referred to as rear end portion) of the tubular portion 2.

筒部２は、吐出ガン（図示せず）に装着される関係上、断面略円形に形成されている。筒部２は、先端側から後端側へ向かって漸次小径となるように、小さな角度（例えば、１°程度の角度）をもってテーパ状に形成されている。筒部２は、断面非円形としてもよく、一定の内外径を有するストレートな筒体としてもよい。また、筒部２に代えて、一端が開口し他端が閉じた袋体を収容部として採用してもよい。そのような袋体を用いる場合には、補強リング３を設けなくてもよく、また袋体自体を閉じることによって底部を形成するようにすれば、底部４も不用である。 The cylindrical portion 2 is formed in a substantially circular cross section because it is attached to a discharge gun (not shown). The cylindrical portion 2 is formed in a tapered shape with a small angle (for example, an angle of about 1°) so that the diameter gradually decreases from the front end side toward the rear end side. The tubular portion 2 may have a non-circular cross section, or may be a straight tubular body having a constant inner and outer diameters. Further, instead of the tubular portion 2, a bag body having one end opened and the other end closed may be adopted as the housing portion. When such a bag is used, the reinforcing ring 3 may not be provided, and if the bag is closed to form the bottom, the bottom 4 is also unnecessary.

図３に示すように、筒部２は、内側筒部（内側収容部）２Ａ及び外側筒部（外側収容部）２Ｂを有している。内側筒部２Ａと外側筒部２Ｂとは、互いに別体に形成されている。外側筒部２Ｂは、内側筒部２Ａの外側に配置されている。換言すれば、内側筒部２Ａが外側筒部２Ｂの内部に挿入されている。内側筒部２Ａの全長は、外側筒部２Ｂの全長より長くなっている。図７に示すように、内側筒部２Ａの先端部２ａは、外側筒部２Ｂの先端部２ｂから外部に突出している。図８に示すように、内側筒部２Ａの後端部２ｃは、外側筒部２Ｂの後端部２ｄから外部に突出している。内側筒部２Ａの外径と外側筒部２Ｂの内径とはほぼ同径であり、内側筒部２Ａの外周面と外側筒部２Ｂの内周面とは、図３、図７及び図８に示すように、周方向における一部、及び長手方向の両端部を除くほぼ全体が互いにほぼ接触している。ただし、内側筒部２Ａの外周面と外側筒部２Ｂの内周面とは、単に接触しているだけであり、接着等によって固着されることがなく、互いに相対移動可能である。すなわち、内側筒部２Ａと外側筒部２Ｂとは、筒部２の軸線方向、周方向及び径方向へ相対移動可能になっている。内側筒部２Ａと外側筒部２Ｂとは、筒部２の径方向へ相対移動可能であるから、筒部２の径方向へ互いに離間させてもよい。つまり、外側筒部２Ｂの内径を内側筒部２Ａの外径より大きくし、内側筒部２Ａと外側筒部２Ｂとを径方向へ互いに離間させてもよい。 As shown in FIG. 3, the tubular portion 2 has an inner tubular portion (inner housing portion) 2A and an outer tubular portion (outer housing portion) 2B. The inner tubular portion 2A and the outer tubular portion 2B are formed separately from each other. The outer tubular portion 2B is arranged outside the inner tubular portion 2A. In other words, the inner tubular portion 2A is inserted inside the outer tubular portion 2B. The overall length of the inner tubular portion 2A is longer than the overall length of the outer tubular portion 2B. As shown in FIG. 7, the tip portion 2a of the inner tubular portion 2A projects to the outside from the tip portion 2b of the outer tubular portion 2B. As shown in FIG. 8, the rear end portion 2c of the inner tubular portion 2A projects outward from the rear end portion 2d of the outer tubular portion 2B. The outer diameter of the inner tubular portion 2A and the inner diameter of the outer tubular portion 2B are substantially the same, and the outer peripheral surface of the inner tubular portion 2A and the inner peripheral surface of the outer tubular portion 2B are as shown in FIG. 3, FIG. 7, and FIG. As shown in the drawing, almost the entire part except for a part in the circumferential direction and both ends in the longitudinal direction are in contact with each other. However, the outer peripheral surface of the inner cylindrical portion 2A and the inner peripheral surface of the outer cylindrical portion 2B are merely in contact with each other, and are not fixed by adhesion or the like, and can move relative to each other. That is, the inner tubular portion 2A and the outer tubular portion 2B are relatively movable in the axial direction, the circumferential direction, and the radial direction of the tubular portion 2. Since the inner tubular portion 2A and the outer tubular portion 2B are relatively movable in the radial direction of the tubular portion 2, they may be separated from each other in the radial direction of the tubular portion 2. That is, the inner diameter of the outer tubular portion 2B may be made larger than the outer diameter of the inner tubular portion 2A, and the inner tubular portion 2A and the outer tubular portion 2B may be separated from each other in the radial direction.

内側筒部２Ａは、柔軟な樹脂フィルムによって構成されている。内側筒部２Ａは、単層の樹脂フィルムによって構成してもよいが、この実施の形態では、図４及び図５に示すように、複数の樹脂フィルムを積層してなる積層フィルム（膜体）５によって構成されている。これは、カートリッジ１内に収容された接着剤が内側筒部２Ａを透過してその外部に漏出するのを極力阻止するとともに、積層フィルム５の両端部を重ねて内側筒部２Ａを形成する際に、積層フィルム５の両端部を容易に融着することができるようにするためである。この点を具体的に説明すると、この実施の形態では積層フィルム５が筒部２の内側から外側に向かって順次配置された第１〜第５フィルム５１〜５５によって構成されている。第１フィルム５１は、リニア低密度ポリエチレン（Ｌ−ＬＤＰＥ）によって構成され、第２フィルム５２は、ナイロンによって構成され、第３フィルム５３は、エチレン酢酸ビニル共重合体によって構成され、第４フィルム５４は、ナイロンによって構成され、第５フィルム５５は、第１フィルム５１と同一の材質であるリニア低密度ポリエチレンによって構成されている。なお、このような内側筒部２Ａの樹脂フィルム構成は、単なる一例であり、以下に述べるような機能を有するものであれば、他の樹脂フィルム構成を採用してもよい。これは、後述する外側筒部２Ｂについても同様である。 The inner tubular portion 2A is made of a flexible resin film. The inner tubular portion 2A may be formed of a single-layer resin film, but in this embodiment, as shown in FIGS. 4 and 5, a laminated film (membrane) formed by laminating a plurality of resin films. It is composed of 5. This is to prevent the adhesive contained in the cartridge 1 from passing through the inner cylindrical portion 2A and leaking to the outside as much as possible, and to form the inner cylindrical portion 2A by stacking both ends of the laminated film 5. In addition, both ends of the laminated film 5 can be easily fused. To specifically describe this point, in this embodiment, the laminated film 5 is composed of first to fifth films 51 to 55 sequentially arranged from the inner side to the outer side of the tubular portion 2. The first film 51 is made of linear low density polyethylene (L-LDPE), the second film 52 is made of nylon, the third film 53 is made of ethylene vinyl acetate copolymer, and the fourth film 54. Is made of nylon, and the fifth film 55 is made of linear low density polyethylene which is the same material as the first film 51. Note that the resin film configuration of the inner tubular portion 2A as described above is merely an example, and another resin film configuration may be adopted as long as it has the functions described below. This also applies to the outer cylindrical portion 2B described later.

最内層の第１フィルム５１と最外層の第５フィルム５５とを同一の樹脂で構成したのは、図３及び図４に示すように、内側筒部２Ａがその周方向における積層フィルム５の一端部と他端部とを重ねて熱融着することによって形成されているからである。すなわち、積層フィルム５の一端部と他端部とを重ね合わせると、第１フィルム５１の内周面と第５フィルム５５の外周面とが接触する。第１フィルム５１と第５フィルム５５とを熱融着する場合、それらの材質が同一であると容易に熱融着することができる。しかも、第１、第５フィルム５１，５５を構成するリニア低密度ポリエチレンは、他の第２〜第４フィルム５２〜５４を構成する樹脂より溶融温度が低いので、第１、第５フィルム５１，５５を熱融着するための熱によって第２〜第４フィルム５２〜５４が受ける熱的影響を少なくすることができる。第１、第５フィルム５１，５５を構成する樹脂フィルムは、必ずしも同一の材質で構成する必要はなく、互いに容易に熱融着することができる材質であれば互いに異なる材質で構成してもよい。また、この実施の形態では、積層フィルム５が５層構造をなしているので、最内層たる第１フィルム５１と最外層たる第５フィルム５５とを同一の樹脂フィルムで構成しているが、積層フィルム５が５層以外の積層構造であるときには、最内層の樹脂フィルムと最外層の樹脂フィルムとを同一又は互いに熱融着し易い材質によって構成すればよい。ただし、図６に示すように、積層フィルム５の内周面どうしを互いに融着することによって内側筒部２Ａを構成する場合には、積層フィルム５の最内層を構成する樹脂フィルムの材質が低温で熱融着することができるものであれば、最外層を構成する樹脂フィルムについては任意に選択することができる。 The innermost first film 51 and the outermost fifth film 55 are made of the same resin, as shown in FIGS. 3 and 4, in which the inner tubular portion 2A has one end of the laminated film 5 in the circumferential direction. This is because it is formed by stacking and heat-sealing the first portion and the second end portion. That is, when one end and the other end of the laminated film 5 are overlapped with each other, the inner peripheral surface of the first film 51 and the outer peripheral surface of the fifth film 55 come into contact with each other. When the first film 51 and the fifth film 55 are heat-sealed, they can be easily heat-sealed if they are made of the same material. Moreover, since the linear low-density polyethylene forming the first and fifth films 51, 55 has a lower melting temperature than the resin forming the other second to fourth films 52 to 54, the first and fifth films 51, 55, It is possible to reduce the thermal influence on the second to fourth films 52 to 54 due to the heat for heat-sealing 55. The resin films forming the first and fifth films 51 and 55 do not necessarily have to be made of the same material, and may be made of different materials as long as they can be easily heat-sealed to each other. . Further, in this embodiment, since the laminated film 5 has a five-layer structure, the innermost first film 51 and the outermost fifth film 55 are made of the same resin film. When the film 5 has a laminated structure other than five layers, the resin film of the innermost layer and the resin film of the outermost layer may be made of the same material or materials that are easily heat-sealed to each other. However, as shown in FIG. 6, when the inner tubular portion 2A is configured by fusing the inner peripheral surfaces of the laminated film 5 to each other, the material of the resin film forming the innermost layer of the laminated film 5 is low temperature. The resin film forming the outermost layer can be arbitrarily selected as long as it can be heat-sealed.

なお、積層フィルム５の一端部と他端部とを重ね合わせると、それらの間に段差が生じる。この段差及びその近傍部分が外側筒部２Ｂに対して非接触状態になっている。また、積層フィルム５の両端部を図６に示すようにして融着する場合には、融着部の基端部を折り曲げて内側筒部２Ａの外周面に沿わせるのが望ましい。 When one end and the other end of the laminated film 5 are overlapped with each other, a step is formed between them. The step and its vicinity are in a non-contact state with the outer cylindrical portion 2B. Further, when both ends of the laminated film 5 are fused as shown in FIG. 6, it is desirable to bend the base end of the fused portion so as to extend along the outer peripheral surface of the inner tubular portion 2A.

第２及び第４フィルム５２，５４をナイロンによって構成し、第３フィルム５３をエチレン酢酸ビニル共重合体によって構成したのは、それらの樹脂が接着剤に対して比較的高い透過阻止性を有し、少なくとも内側筒部２Ａの最内層と最外層とを構成する第１、第５フィルム５１，５５及び後述する外側筒部２Ｂの第１層６１及び第３層６３を構成する樹脂より接着剤に対して高い透過阻止性を有しているからである。しかも、第２、第４フィルム５２，５４と第３フィルム５３とを異なる樹脂で構成することにより、互いに異なる接着剤若しくは同一の接着剤中の互いに異なる成分に対してそれぞれ透過阻止性を発揮することができるからである。 The second and fourth films 52 and 54 are made of nylon, and the third film 53 is made of ethylene vinyl acetate copolymer, because the resins have relatively high permeation-preventing property with respect to the adhesive. , At least the first and fifth films 51 and 55 forming the innermost layer and the outermost layer of the inner tubular portion 2A and the resin forming the first layer 61 and the third layer 63 of the outer tubular portion 2B, which will be described later, are used as an adhesive agent. This is because it has a high permeability blocking property. Moreover, the second and fourth films 52, 54 and the third film 53 are made of different resins, so that the second and fourth films 52, 54 and the third film 53 exhibit the permeation-preventing property against different adhesives or different components in the same adhesive. Because you can.

ここで、仮に互いに異なる接着剤又は同一の接着剤中の異なる成分に対する透過阻止性だけを考慮するのであれば、同一材質からなる第２、第４フィルム５２，５４の一方については省いてもよい。しかし、積層フィルム５は、後述する理由により、共押出し成形することが望ましく、共押出し成形では第１〜第５フィルム５１〜５５のうちの互いに接するものどうしが、接着剤によって接着されることなく、直接に又はシーラントを介して固着（融着）される。このような共押出し成形を行う場合には、互いに隣接するフィルムどうしが互いに固着し易い材質であることが望ましい。この実施の形態では、第１、第５フィルム５１，５５を構成するリニア低密度ポリエチレンに対する固着性は、ナイロンの方がエチレン酢酸ビニル共重合体より高い。したがって、仮に第４フィルム５４を省いて第３フィルム５３を第５フィルム５５に固着させようとすると、それらの固着性が低下してしまう。そこで、第３フィルム５３と第５フィルム５５との間に、エチレン酢酸ビニル共重合体及びリニア低密度ポリエチレンの両者に対して固着性が高いナイロンからなる第４フィルム５４を設けたものである。 Here, if only permeation-preventing properties for different adhesives or different components in the same adhesive are taken into consideration, one of the second and fourth films 52, 54 made of the same material may be omitted. .. However, the laminated film 5 is preferably coextruded for the reason described below, and in the coextrusion molding, the first to fifth films 51 to 55 that are in contact with each other are not bonded by an adhesive. , Directly or through a sealant. When such co-extrusion molding is performed, it is desirable that the films adjacent to each other be made of a material that easily adheres to each other. In this embodiment, nylon has higher adhesiveness to the linear low-density polyethylene forming the first and fifth films 51 and 55 than the ethylene-vinyl acetate copolymer. Therefore, if it is attempted to fix the third film 53 to the fifth film 55 by omitting the fourth film 54, their sticking property will be deteriorated. Therefore, between the third film 53 and the fifth film 55, a fourth film 54 made of nylon, which has high adhesiveness to both the ethylene vinyl acetate copolymer and the linear low density polyethylene, is provided.

外側筒部２Ｂは、柔軟性を有するフィルム状の膜体であれば、単層構造を有するものによって構成してもよいが、この実施の形態では、図４及び図５に示すように、複数層を有する積層体（膜体）６によって構成されている。積層体６は、３層構造をなし、内側から外側に向かって順次配置された第１、第２及び第３層６１，６２，６３を有している。積層体６は、２層又は４層以上にしてもよい。ただし、いずれの場合においても、少なくとも一つの層をアルミニウムの箔体によって構成するのが望ましい。これは、内側筒体２Ａを透過する僅かな接着剤等が筒部２の外部に漏れ出るのをより確実に阻止するためである。この実施の形態では、第２層６２がアルミニウムの箔体によって構成されている。 The outer tubular portion 2B may be configured by a single-layer structure as long as it is a flexible film-shaped film body, but in this embodiment, as shown in FIGS. It is composed of a laminated body (film body) 6 having layers. The laminated body 6 has a three-layer structure, and has first, second and third layers 61, 62, 63 sequentially arranged from the inner side to the outer side. The laminate 6 may have two layers or four or more layers. However, in any case, it is desirable that at least one layer is made of an aluminum foil. This is to more reliably prevent the slight adhesive or the like that permeates the inner tubular body 2A from leaking out of the tubular portion 2. In this embodiment, the second layer 62 is made of an aluminum foil body.

アルミニウムの箔体は、破れ易い。そこで、第２層６２の内外両面には、樹脂フィルムからなる第１層６１及び第２層６３が接着剤層６４，６５を介してそれぞれ接着固定されている。これにより、アルミニウムの箔体からなる第２層６２を破れにくくするとともに、外側筒部２Ｂ全体を破れにくくしている。しかも、外側筒部２Ｂは、図３及び図５に示すように、積層体６の両端部を重ねて熱融着することによって形成されている。そこで、内側筒部２Ａの場合と同様に、積層体６の最内層を構成する第１層６１と最外層を構成する第３層６２とは、互いに同一の材質からなる樹脂フィルムによって形成されており、この実施の形態では、リニア低密度ポリエチレンによって形成されている。ただし、アルミニウムの箔体からなる第２層６２が熱的な影響をほとんど受けないので、第１、第３層６１，６３を構成する樹脂フィルムは、必ずしも融点が低い樹脂で構成する必要はなく、融点が高い樹脂で構成してもよい。また、第１層６１と第３層６３とは、接着剤によって接着固定してもよく、その場合には第１、第３層６１，６３を構成する樹脂フィルムの材質については任意に選択することができる。 The aluminum foil body is easy to tear. Therefore, the first layer 61 and the second layer 63 made of a resin film are bonded and fixed to the inner and outer surfaces of the second layer 62 via the adhesive layers 64 and 65, respectively. This makes it difficult for the second layer 62 made of an aluminum foil body to break, and also makes it difficult for the entire outer cylindrical portion 2B to break. Moreover, as shown in FIGS. 3 and 5, the outer tubular portion 2B is formed by stacking both ends of the laminated body 6 and heat-sealing them. Therefore, as in the case of the inner tubular portion 2A, the first layer 61 forming the innermost layer and the third layer 62 forming the outermost layer of the laminated body 6 are formed of resin films made of the same material. In this embodiment, the linear low density polyethylene is used. However, since the second layer 62 made of an aluminum foil is hardly affected by heat, the resin films forming the first and third layers 61 and 63 do not necessarily have to be formed of a resin having a low melting point. Alternatively, the resin may have a high melting point. Further, the first layer 61 and the third layer 63 may be adhered and fixed by an adhesive, and in that case, the material of the resin film forming the first and third layers 61 and 63 is arbitrarily selected. be able to.

なお、積層体６の一端部と他端部とを重ね合わせると、それらの間に段差が生じる。この段差及びその近傍部分が内側筒部２Ａに対して非接触状態になっている。図３に示すように、外側筒部２Ｂに形成される段差部は、内側筒部２Ａに形成される段差部に対して内側筒部２Ａ及び外側筒部２Ｂの周方向へ離間させるのが望ましく、特に１８０°離間させるのが望ましい。また、外側筒部２Ｂは、積層体６の両端部を重ねて接合することなく、内側筒部２Ａの両端部を図６に示す方法によって固着する場合と同様に、互いの内周面どうしを固着してもよい。 When one end and the other end of the laminated body 6 are overlapped with each other, a step is formed between them. This step and its vicinity are in non-contact with the inner cylindrical portion 2A. As shown in FIG. 3, the stepped portion formed on the outer tubular portion 2B is preferably separated from the stepped portion formed on the inner tubular portion 2A in the circumferential direction of the inner tubular portion 2A and the outer tubular portion 2B. Especially, it is desirable to separate them by 180°. In addition, the outer tubular portion 2B has a structure in which the inner circumferential surfaces of the inner tubular portion 2A are fixed to each other in the same manner as in the case where the both end portions of the inner tubular portion 2A are fixed by the method shown in FIG. You may fix.

内側筒部２Ａの周方向における積層フィルム５の両端部を重ね合わせて融着した場合には、図４に示すように、積層フィルム５の一端面がカートリッジ１の内部に露出し、カートリッジ１の内部に収容された接着剤に直接接触する。このため、積層フィルム５を構成する第１〜第５フィルム５１〜５５を接着剤によって接着固定したものとすると、カートリッジ１内に収容された接着剤が第１〜第５フィルム５１〜５５を接着する接着剤を溶融し、各フィルム５１〜５５間に入り込む。各フィルム５１〜５５間に入った接着剤は、第１〜第５フィルム５１〜５５の各間を通って積層フィルム５の他端面から内側筒部２Ａの外部に漏れ出たり、あるいはフィルム５２〜５５の内部を透過して内側筒部２Ａの外周面から外部に漏れ出るおそれがある。そこで、この実施の形態のカートリッジ１においては、積層フィルム５を構成する第１〜第５フィルム５１〜５５を、共押出し成形によって互いに直接に、又はシーラントを介して接合（融着）している。したがって、カートリッジ１内に収容された接着剤が内側筒部２Ａから外部に漏れ出ることを極力防止することができる。一方、外側筒部２Ｂは、第１〜第３層６１〜６３が接着剤層６４，６５によって互いに接着されているが内側筒部２Ａの外部に漏れ出る接着剤等の量が極く僅かであるから、接着剤層６４，６５が溶融されることはほとんどない。しかも、外側筒部２Ｂの第２層６２がアルミニウムの箔体によって構成されているので、外側筒部２Ｂは内側筒部２Ａから漏れ出た接着剤が外側筒部２Ｂの周壁部を透過して筒部２の外部に漏れ出るのを防止することができる。 When both ends of the laminated film 5 in the circumferential direction of the inner tubular portion 2A are overlapped and fused, as shown in FIG. 4, one end surface of the laminated film 5 is exposed inside the cartridge 1 and Directly contacts the adhesive contained inside. Therefore, assuming that the first to fifth films 51 to 55 forming the laminated film 5 are adhesively fixed with an adhesive, the adhesive contained in the cartridge 1 adheres the first to fifth films 51 to 55. The adhesive to be melted is melted and penetrated between the films 51 to 55. The adhesive that has entered between the films 51 to 55 leaks from the other end surface of the laminated film 5 to the outside of the inner tubular portion 2A through each of the first to fifth films 51 to 55, or the films 52 to 55. There is a possibility that the light will pass through the inside of 55 and leak out from the outer peripheral surface of the inner cylindrical portion 2A. Therefore, in the cartridge 1 of this embodiment, the first to fifth films 51 to 55 forming the laminated film 5 are bonded (fused) to each other directly by coextrusion molding or via a sealant. .. Therefore, it is possible to prevent the adhesive contained in the cartridge 1 from leaking to the outside from the inner tubular portion 2A. On the other hand, in the outer tubular portion 2B, the first to third layers 61 to 63 are adhered to each other by the adhesive layers 64 and 65, but the amount of adhesive or the like leaking out of the inner tubular portion 2A is extremely small. Therefore, the adhesive layers 64 and 65 are hardly melted. Moreover, since the second layer 62 of the outer tubular portion 2B is made of an aluminum foil, the adhesive leaking from the inner tubular portion 2A penetrates the peripheral wall portion of the outer tubular portion 2B in the outer tubular portion 2B. It is possible to prevent the cylinder portion 2 from leaking to the outside.

上記補強リング３は、比較的硬質の樹脂を成形してなるものであり、図７に示すように、長さの短い断面円形の筒状に形成されている。補強リング３は、それ自体の形状を一定の形状を維持することができるよう、所定の強度を有している。補強リング３の先端部（図１、図２及び図７において左端部）外周面には、雄ねじ部３ａが形成されている。この雄ねじ部３ａには、蓋体（図示せず）が螺合固定されている。これによって、カートリッジ１の先端開口部が閉じられるようになっている。 The reinforcing ring 3 is formed by molding a relatively hard resin, and as shown in FIG. 7, is formed in a tubular shape having a short cross section and a circular cross section. The reinforcing ring 3 has a predetermined strength so that it can maintain a constant shape. A male screw portion 3a is formed on the outer peripheral surface of the tip portion (the left end portion in FIGS. 1, 2, and 7) of the reinforcing ring 3. A lid (not shown) is screwed and fixed to the male screw portion 3a. As a result, the front end opening of the cartridge 1 is closed.

補強リング３の内径は、外側筒部２Ｂの先端部２ｂの外径とほぼ同一に設定されている。補強リング３の内周面の基端側（図７において右側）の端部には、外側筒部２Ｂの先端部２ｂの外周面が固着されている。外側筒部２Ｂの先端部２ｂの外周面は、補強リング３の成形後に超音波融着法等によって固着することも可能であるが、この実施の形態では、補強リング３を射出成形するため金型（図示せず）内に外側筒部２Ｂの先端部２ｂを予め装着しておき、その金型内に溶融樹脂を充填することにより、補強リング３を成形すると同時に補強リング３の内周面に外側筒部２Ｂの先端部２ｂが融着されている。補強リング３の内周面の中間部、つまり補強リング３の内周面のうちの外側筒部２Ｂが融着された部位より先端側の部位には、内側筒部２Ａの外側筒部２Ｂから突出した先端部２ａが融着固定されている。この場合、内側筒部２Ａの先端部２ａは、その外径が外側筒部２Ｂの先端部２ｂの外径とほぼ同一になるように予め拡径されており、補強リング３の内周面に外側筒部２Ｂと同様にして融着されている。したがって、内側筒部２Ａの先端部２ａ及び外側筒部２Ｂの先端部２ｂは、補強リング３の内周面に同時に融着されている。内側筒部２Ａ及び外側筒部２Ｂの各先端部２ａ，２ｂは、補強リング３に融着されることによって断面円形の一定形状に維持されている。 The inner diameter of the reinforcing ring 3 is set to be substantially the same as the outer diameter of the tip portion 2b of the outer tubular portion 2B. The outer peripheral surface of the tip portion 2b of the outer tubular portion 2B is fixed to the end portion of the inner peripheral surface of the reinforcing ring 3 on the base end side (right side in FIG. 7). The outer peripheral surface of the tip portion 2b of the outer tubular portion 2B can be fixed by ultrasonic welding or the like after the reinforcing ring 3 is molded. However, in this embodiment, the reinforcing ring 3 is injection-molded so that it is made of metal. The tip portion 2b of the outer tubular portion 2B is mounted in advance in a mold (not shown), and molten resin is filled in the mold to mold the reinforcing ring 3 and at the same time, to form the inner peripheral surface of the reinforcing ring 3. The tip portion 2b of the outer tubular portion 2B is fused to the. From the outer tubular portion 2B of the inner tubular portion 2A to the intermediate portion of the inner circumferential surface of the reinforcing ring 3, that is, the portion of the inner circumferential surface of the reinforcing ring 3 that is on the tip side of the portion where the outer tubular portion 2B is fused. The protruding tip portion 2a is fused and fixed. In this case, the tip portion 2a of the inner tubular portion 2A is pre-expanded so that the outer diameter thereof is substantially the same as the outer diameter of the tip portion 2b of the outer tubular portion 2B, and the inner peripheral surface of the reinforcing ring 3 is It is fused in the same manner as the outer tubular portion 2B. Therefore, the distal end portion 2a of the inner tubular portion 2A and the distal end portion 2b of the outer tubular portion 2B are simultaneously fused to the inner peripheral surface of the reinforcing ring 3. The respective tip portions 2a and 2b of the inner tubular portion 2A and the outer tubular portion 2B are fused to the reinforcing ring 3 so as to be maintained in a constant shape having a circular cross section.

内側筒部２Ａの先端部２ａを外側筒部２Ｂが固着された部位より先端側の部位において補強リング３の内周面に固着すると、カートリッジ１内に収容された接着剤が筒部２から漏れ出るのを防止することができる。すなわち、仮に内側筒部２Ａの先端面と外側筒部２Ｂの先端面とを同一平面上に位置させ、外側筒部２Ｂは補強リング３の内周面に直接に、内側筒部２Ａは補強リング３の内周面に外側筒部２Ｂを介してそれぞれ固着したものとすると、外側筒部２Ｂの先端面がカートリッジ１内に収容された接着剤に直接触れてしまう。つまり、外側筒部２Ｂを構成する積層体６の先端面が接着剤に直接触れるのである。すると、積層体６を構成する第１〜第３層６１〜６３を接着する接着剤層６４，６５が溶融される。その結果、内側筒部２Ａの各フィルム５１〜５５を接着する接着剤が溶融するという前述した場合と同様にして、カートリッジ１内の接着剤が外側筒部２Ｂを透過して外部に漏れ出てしまうおそれがある。 When the tip portion 2a of the inner tubular portion 2A is fixed to the inner peripheral surface of the reinforcing ring 3 at the tip end side of the portion where the outer tubular portion 2B is fixed, the adhesive agent contained in the cartridge 1 leaks from the tubular portion 2. You can prevent it from coming out. That is, if the tip end surface of the inner tubular portion 2A and the tip end surface of the outer tubular portion 2B are located on the same plane, the outer tubular portion 2B is directly on the inner peripheral surface of the reinforcing ring 3 and the inner tubular portion 2A is the reinforcing ring. If they are fixed to the inner peripheral surface of 3 via the outer tubular portion 2B, the tip end surface of the outer tubular portion 2B directly contacts the adhesive contained in the cartridge 1. That is, the tip surface of the laminated body 6 forming the outer tubular portion 2B directly contacts the adhesive. Then, the adhesive layers 64 and 65 that bond the first to third layers 61 to 63 that form the laminated body 6 are melted. As a result, the adhesive in the cartridge 1 permeates the outer cylinder 2B and leaks to the outside in the same manner as the above-mentioned case in which the adhesive that bonds the films 51 to 55 of the inner cylinder 2A melts. There is a risk that

しかるに、内側筒部２Ａの先端部２ａを外側筒部２Ｂが固着された箇所より先端側において補強リング３の内周面に固着すると、外側筒部２Ｂの先端面が内側筒部２Ａの先端部２ａによって覆われるので、カートリッジ１内に収容された接着剤が外側筒部２Ｂの先端面に接触することがない。したがって、外側筒部２Ｂを構成する積層体６の接着剤層６４，６５がカートリッジ１内の接着剤によって溶融されるのを防止することができ、それよってカートリッジ１内に収容された接着剤が筒部２の外部に透過して漏れ出るのを防止することができるのである。 However, when the tip end portion 2a of the inner tubular portion 2A is fixed to the inner peripheral surface of the reinforcing ring 3 at the tip end side from the location where the outer tubular portion 2B is fixed, the tip end surface of the outer tubular portion 2B becomes the tip end portion of the inner tubular portion 2A. Since it is covered with 2a, the adhesive accommodated in the cartridge 1 does not come into contact with the tip surface of the outer tubular portion 2B. Therefore, it is possible to prevent the adhesive layers 64, 65 of the laminated body 6 forming the outer tubular portion 2B from being melted by the adhesive in the cartridge 1, and thus the adhesive contained in the cartridge 1 is prevented. It is possible to prevent it from penetrating and leaking to the outside of the tubular portion 2.

上記底部４は、比較的硬質の樹脂を成形してなるものであり、それ自体の形状を一定の形状を維持することができるよう、所定の強度を有している。図８に示すように、底部４は、円板状をなす底板部４ａを有している。底板部４ａの先端部には、環状突出部４ｂが形成されている。この環状突出部４ｂの内径は、外側筒部２Ｂの後端部２ｄの外径とほぼ同一に設定されている。 The bottom portion 4 is formed by molding a relatively hard resin, and has a predetermined strength so that the shape of the bottom portion 4 can be maintained constant. As shown in FIG. 8, the bottom portion 4 has a disc-shaped bottom plate portion 4a. An annular protrusion 4b is formed at the tip of the bottom plate 4a. The inner diameter of the annular protruding portion 4b is set to be substantially the same as the outer diameter of the rear end portion 2d of the outer tubular portion 2B.

環状突出部４ｂの内周面には、内側筒部２Ａの後端部２ｃと外側筒部２Ｂの後端部２ｄとがそれぞれ融着固定されている。これによって、内側筒部２Ａ及び外側筒部２Ｂの各後端開口部が底部４によって閉じられ、ひいては筒部２の他端開口部が底部４によって閉じられている。しかも、内側筒部２Ａ及び外側筒部２Ｂの後端部２ｃ、２ｄが、底部４により断面円形の一定形状に維持されている。外側筒部２Ｂの後端部２ｄは、環状突出部４ｂの内周面の先端部に融着されている。外側筒部２Ｂの後端部２ｄから突出した内側筒部２Ａの後端部２ｃは、環状突出部４ｂの内周面の基端部に融着されている。したがって、外側筒部２Ｂの後端部２ｄは、内側筒部２Ａの後端部２ｃによって覆われている。よって、外側筒部２Ｂの先端部２ｂの場合と同様に、外側筒部２Ｂの後端部２ｄから接着剤が漏れ出るのを防止することができる。 A rear end portion 2c of the inner cylindrical portion 2A and a rear end portion 2d of the outer cylindrical portion 2B are fused and fixed to the inner peripheral surface of the annular protruding portion 4b. As a result, the rear end openings of the inner tubular portion 2A and the outer tubular portion 2B are closed by the bottom portion 4, and the other end opening portion of the tubular portion 2 is closed by the bottom portion 4. Moreover, the rear end portions 2c and 2d of the inner tubular portion 2A and the outer tubular portion 2B are maintained by the bottom portion 4 in a constant shape having a circular cross section. The rear end portion 2d of the outer tubular portion 2B is fused to the front end portion of the inner peripheral surface of the annular protrusion 4b. A rear end portion 2c of the inner cylindrical portion 2A protruding from the rear end portion 2d of the outer cylindrical portion 2B is fused to the base end portion of the inner peripheral surface of the annular protruding portion 4b. Therefore, the rear end portion 2d of the outer tubular portion 2B is covered with the rear end portion 2c of the inner tubular portion 2A. Therefore, as in the case of the front end portion 2b of the outer tubular portion 2B, it is possible to prevent the adhesive from leaking out from the rear end portion 2d of the outer tubular portion 2B.

上記構成のカートリッジ１においては、積層フィルム５からなる内側筒部２Ａと積層体６からなる外側筒部２Ｂとが互いに別体に形成され、それによって内側筒部２Ａと外側筒部２Ｂとが相対移動可能になっているので、外側筒部２Ｂの外周面に擦過傷等が発生してもその傷が内側筒部２Ａまで延びることがない。したがって、外側筒部２Ｂが破れたとしても、内側筒部２Ａが破れることがない。よって、カートリッジ１内に収容された接着剤等が筒部２から破損部を通って外部に漏れ出るのを防止することができる。 In the cartridge 1 having the above structure, the inner tubular portion 2A made of the laminated film 5 and the outer tubular portion 2B made of the laminated body 6 are formed separately from each other, whereby the inner tubular portion 2A and the outer tubular portion 2B are opposed to each other. Since it is movable, even if a scratch or the like occurs on the outer peripheral surface of the outer tubular portion 2B, the scratch does not extend to the inner tubular portion 2A. Therefore, even if the outer tubular portion 2B is torn, the inner tubular portion 2A will not be torn. Therefore, it is possible to prevent the adhesive or the like contained in the cartridge 1 from leaking outside from the tubular portion 2 through the damaged portion.

次に、この発明の他の実施の形態について説明する。なお、以下の実施の形態については、上記実施の形態と異なる構成についてのみ説明し、上記実施の形態と同様な構成部分には同一符号を付してその説明を省略する。 Next, another embodiment of the present invention will be described. Note that, in the following embodiments, only the configurations different from the above-described embodiments will be described, and the same components as those in the above-described embodiments will be denoted by the same reference numerals and description thereof will be omitted.

図９は、この発明の第２実施の形態を示す。この実施の形態は、この発明をバケツのように上端が開口した容器１Ａに適用したものである。したがって、筒部２は、その長手方向を上下方向に向けた状態で配置されている。筒部２を構成する内側筒部２Ａ及び外側筒部２Ｂは、全長にわたって一定の内外径を有している。内側筒部２Ａ及び外側筒部２Ｂは、上方へ向かって拡径するように、テーパ状に形成してもよい。 FIG. 9 shows a second embodiment of the present invention. In this embodiment, the present invention is applied to a container 1A having an open upper end like a bucket. Therefore, the tubular portion 2 is arranged with its longitudinal direction oriented vertically. The inner tubular portion 2A and the outer tubular portion 2B that form the tubular portion 2 have constant inner and outer diameters over the entire length. The inner cylindrical portion 2A and the outer cylindrical portion 2B may be formed in a tapered shape so as to expand in diameter upward.

外側筒部２Ｂは、ポリエチレンテレフタレート（ＰＥＴ）等の飽和ポリエステル樹脂からなる単層の膜体によって構成されている。しかも、外側筒部２Ｂの厚さ（０．２ｍｍ程度）は、内側筒部２Ａを構成する積層フィルム５の厚さ（０．１ｍｍ程度）より厚くなっている。その結果、外側筒部２Ｂは、柔軟性を有する範囲内において、その柔軟性が内側筒部２Ａの柔軟性より低くなっている。換言すれば、外側筒部２Ｂは、それ自体の形状を一定に維持するための保形強度が内側筒部２Ａの保形強度より高くなっている。外側筒部２Ｂの長さは、補強リング３の下端面と底部４の上端面との間の距離と等しくなっている。したがって、外側筒部２Ｂの上端面が補強リング３の下端面に接触し、下端面が底部４の上端面に接触している。この場合、外側筒部２Ｂの上下の端面は、補強リング３及び底部４に固着されることなく、単に接触しているだけである。したがって、外側筒部２Ｂは、補強リング３及び底部４によって上下方向へ移動不能に拘束されているが、補強リング３及び底部による拘束を解除すれば、補強リング３及び底部４に対して上下方向へ移動することができる。 The outer tubular portion 2B is composed of a single-layer film body made of a saturated polyester resin such as polyethylene terephthalate (PET). Moreover, the thickness of the outer tubular portion 2B (about 0.2 mm) is thicker than the thickness (about 0.1 mm) of the laminated film 5 forming the inner tubular portion 2A. As a result, the flexibility of the outer tubular portion 2B is lower than that of the inner tubular portion 2A within the range of flexibility. In other words, the outer cylindrical portion 2B has a higher shape retention strength for keeping the shape of itself constant than the inner cylindrical portion 2A. The length of the outer tubular portion 2B is equal to the distance between the lower end surface of the reinforcing ring 3 and the upper end surface of the bottom portion 4. Therefore, the upper end surface of the outer tubular portion 2B is in contact with the lower end surface of the reinforcing ring 3, and the lower end surface is in contact with the upper end surface of the bottom portion 4. In this case, the upper and lower end surfaces of the outer tubular portion 2B are not fixed to the reinforcing ring 3 and the bottom portion 4 but merely in contact with each other. Therefore, the outer tubular portion 2B is constrained by the reinforcing ring 3 and the bottom portion 4 so as to be immovable in the vertical direction. You can move to.

補強リング３は、それ自体のみならず内側筒部２Ａを一定の形状に維持するだけの強度を有する範囲において適度の柔軟性を有し、径方向へ変形可能になっている。補強リング３の内径は、内側筒部２Ａの外径と同一に設定されている。図１０に示すように、補強リング３の内周面には、その全長にわたって内側筒部２Ａの上端部が固着（融着）されている。内側筒部２Ａは、補強リング３の中間部から下側の部分にのみ固着してもよい。補強リング３の外周面には、軸線を水平方向に向けた支持軸部３ｂが二つ形成されている。二つの支持軸部３ｂは、補強リング３の周方向へ１８０°離れ、かつ互いの軸線を一致させて配置されている。各支持軸部３ｂには、逆Ｕ字状をなす取手７の両端部が回動可能に連結されている。 The reinforcing ring 3 has appropriate flexibility not only by itself but in a range having strength enough to maintain the inner cylindrical portion 2A in a constant shape, and is capable of being deformed in the radial direction. The inner diameter of the reinforcing ring 3 is set to be the same as the outer diameter of the inner tubular portion 2A. As shown in FIG. 10, the upper end of the inner cylindrical portion 2A is fixed (fused) to the inner peripheral surface of the reinforcing ring 3 over the entire length thereof. The inner cylindrical portion 2A may be fixed only to the lower portion from the intermediate portion of the reinforcing ring 3. On the outer peripheral surface of the reinforcing ring 3, two support shaft portions 3b whose axis is oriented in the horizontal direction are formed. The two support shaft portions 3b are arranged 180° apart from each other in the circumferential direction of the reinforcing ring 3 and have their axes aligned with each other. Both ends of an inverted U-shaped handle 7 are rotatably connected to each of the support shafts 3b.

底部４の環状突出部４ｂの内径は、内側筒部２Ａの下端部の外径と同一に設定されている。環状突出部４ｂの内周面には、その全長にわたって内側筒部２Ａの下端部が固着（融着）されている。内側筒部２Ａの下端部は、環状突出部４ｂの中間部より上側の部分にのみ固着してもよい。 The inner diameter of the annular protruding portion 4b of the bottom portion 4 is set to be the same as the outer diameter of the lower end portion of the inner tubular portion 2A. The lower end of the inner cylindrical portion 2A is fixed (fused) to the inner peripheral surface of the annular protruding portion 4b over the entire length thereof. The lower end portion of the inner tubular portion 2A may be fixed only to a portion above the intermediate portion of the annular protruding portion 4b.

上記構成の容器１Ａによれば、保形強度が高い外側筒部２Ｂが用いられているので、容器１Ａを床面上に載置したとき、容器１Ａは、上下に潰れることなく、初期の形状を維持することができる。また、容器１Ａ内に流動性を有する接着剤や塗料を収容させたときに、筒部２の中央部が外側へ向かって膨出するように変形するのを防止することができる。また、容器１Ａを廃棄する際には、補強リング３を径方向内側へ押し潰すように変形させて、補強リング３による外側筒部２Ｂに対する拘束を解除した後、外側筒部２Ｂを上方へ移動させて内側筒部２Ａ及び補強リング３から抜き出すことにより、外側筒部２Ｂとの他の部分とを分離して廃棄することができる。しかも、当該他の部分については、内側筒部２Ａを上下方向に押し潰すことにより、容積を小さくした状態で廃棄することができる。一方、外側筒部２Ｂは、その径方向に押し潰すことにより、容積を小さくした状態で廃棄することができる。 According to the container 1A having the above-described configuration, since the outer tubular portion 2B having high shape retention strength is used, when the container 1A is placed on the floor surface, the container 1A does not collapse vertically and has an initial shape. Can be maintained. Further, when a fluid adhesive or paint is stored in the container 1A, it is possible to prevent the center portion of the tubular portion 2 from being deformed so as to bulge outward. When discarding the container 1A, the reinforcing ring 3 is deformed so as to be crushed inward in the radial direction to release the restraint of the outer cylindrical portion 2B by the reinforcing ring 3, and then the outer cylindrical portion 2B is moved upward. By pulling it out from the inner tubular portion 2A and the reinforcing ring 3, the outer tubular portion 2B and other parts can be separated and discarded. Moreover, with respect to the other portion, the inner tubular portion 2A is crushed in the vertical direction so that the inner tubular portion 2A can be discarded in a state where the volume is reduced. On the other hand, the outer tubular portion 2B can be discarded in a state where the volume is reduced by crushing the outer tubular portion 2B in the radial direction.

図１２及び図１３は、この発明の第３実施の形態を示す。この実施の形態は、上記容器１Ａを変形したものであり、その構成が次の点において容器１Ａと異なっている。すなわち、補強リング３の下端部内周面には、大径孔部３ｃが形成されている。この大径孔部３ｃの内径は、外側筒部２Ｂの上端部の外径と同一寸法に設定されている。大径孔部３ｃの内周面には、外側筒部２Ｂの上端部が上下方向へ移動可能に嵌合されている。補強リング３の大径孔部３ｃより上側の内周面には、内側筒部２Ａの上端部が固着されている。この結果、外側筒部２Ｂの上端部が内側筒部２Ａの上端部と補強リング３の下端部との間に、上下方向へ移動可能に挿入された状態になっている。底部４の環状突出部４ｂの上端部内周面には、大径孔部４ｃが形成されている。この大径孔部４ｃの内径は、外側筒部２Ｂの下端部の外径と同一寸法に設定されている。大径孔部４ｃの内周面には、外側筒部２Ｂの下端部が上下方向へ移動可能に嵌合されている。環状突出部４ｂの大径孔部４ｃより下側の内周面には、内側筒部２Ａの下端部が固着されている。この結果、外側筒部２Ｂの下端部が内側筒部２Ａの下端部と環状突出部４ｂとの間に、上下方向へ移動可能に挿入された状態になっている。 12 and 13 show a third embodiment of the present invention. This embodiment is a modification of the container 1A described above, and is different in configuration from the container 1A in the following points. That is, a large diameter hole 3c is formed on the inner peripheral surface of the lower end of the reinforcing ring 3. The inner diameter of the large diameter hole portion 3c is set to be the same as the outer diameter of the upper end portion of the outer tubular portion 2B. The upper end of the outer tubular portion 2B is fitted to the inner peripheral surface of the large diameter hole portion 3c so as to be vertically movable. The upper end portion of the inner cylindrical portion 2A is fixed to the inner peripheral surface of the reinforcing ring 3 above the large diameter hole portion 3c. As a result, the upper end of the outer tubular portion 2B is inserted between the upper end of the inner tubular portion 2A and the lower end of the reinforcing ring 3 so as to be vertically movable. A large diameter hole portion 4c is formed on the inner peripheral surface of the upper end portion of the annular protruding portion 4b of the bottom portion 4. The inner diameter of the large diameter hole portion 4c is set to be the same as the outer diameter of the lower end portion of the outer tubular portion 2B. A lower end portion of the outer tubular portion 2B is fitted to the inner peripheral surface of the large diameter hole portion 4c so as to be vertically movable. The lower end portion of the inner cylindrical portion 2A is fixed to the inner peripheral surface of the annular protruding portion 4b below the large diameter hole portion 4c. As a result, the lower end of the outer tubular portion 2B is inserted between the lower end of the inner tubular portion 2A and the annular protruding portion 4b so as to be vertically movable.

この実施の形態の容器では、補強リング３を径方向に押し潰すように変形させることにより、外側筒部２Ｂの上端部を内側筒部２Ａと補強筒部３との間から抜き出すことができる。その後、外側筒部２Ｂを内側筒部２Ａ及び補強リング３から上方へ抜き出すことができる。したがって、上記の実施の形態と同様に、廃棄物の容積を小さくすることができる。しかも、外側筒部２Ｂの上下の端部を補強リング３及び底部４にそれぞれ嵌合させた分だけ外側筒部２Ｂの保形強度を向上させることができ、それによって内側筒部２Ａの外側への膨出をより一層防止することができる。ただし、外側筒部２Ｂの補強リング３に対する嵌合長さを長くすると、外側筒部２Ｂを補強リング３から抜き出しにくくなる。そこで、外側筒部２Ｂの補強リング３に対する嵌合長さは、外側筒部２Ｂの保形強度を向上させることができる範囲においてできる限り短くするのが望ましい。 In the container of this embodiment, the upper end of the outer tubular portion 2B can be pulled out from between the inner tubular portion 2A and the reinforcing tubular portion 3 by deforming the reinforcing ring 3 so as to be crushed in the radial direction. After that, the outer tubular portion 2B can be pulled out upward from the inner tubular portion 2A and the reinforcing ring 3. Therefore, as in the above-described embodiment, the volume of waste can be reduced. In addition, the shape retention strength of the outer tubular portion 2B can be improved by the amount that the upper and lower ends of the outer tubular portion 2B are fitted to the reinforcing ring 3 and the bottom portion 4, respectively. Can be further prevented. However, if the fitting length of the outer tubular portion 2B with respect to the reinforcing ring 3 is increased, it becomes difficult to pull the outer tubular portion 2B out of the reinforcing ring 3. Therefore, it is desirable that the fitting length of the outer tubular portion 2B with respect to the reinforcing ring 3 be as short as possible within the range in which the shape retention strength of the outer tubular portion 2B can be improved.

図１４〜図１６は、この発明の第４実施の形態を示す。この実施の形態は、この発明を吐出ガン用カートリッジ（容器）１Ｂに適用したものである。そのためこのカートリッジ１Ｂにおいては、筒部２を構成する内側筒部２Ａ及び外側筒部２Ｂが第１実施の形態と同様に先端側（図１４において左側）へ向かって小径になるように、僅かな角度ではあるがテーパ状に形成されている。また、第２実施の形態と同様に、外側筒部２Ｂの保形強度を内側筒部２Ａの保形強度より高くするために、外側筒部２Ｂが内側筒部２Ａより厚さが厚い単層の樹脂からなる膜体によって構成されている。さらに、カートリッジ１Ｂは、蓋体８、第２補強リング９及びプランジャ（底部）１０を有している。 14 to 16 show a fourth embodiment of the present invention. In this embodiment, the present invention is applied to a discharge gun cartridge (container) 1B. Therefore, in this cartridge 1B, the inner cylinder portion 2A and the outer cylinder portion 2B forming the cylinder portion 2 are slightly reduced in diameter toward the tip end side (left side in FIG. 14) as in the first embodiment. Although it is an angle, it is formed in a tapered shape. In addition, as in the second embodiment, in order to make the shape retention strength of the outer tubular portion 2B higher than the shape retention strength of the inner tubular portion 2A, the outer tubular portion 2B is a single layer thicker than the inner tubular portion 2A. It is composed of a film body made of resin. Further, the cartridge 1B has a lid body 8, a second reinforcing ring 9 and a plunger (bottom portion) 10.

蓋体８は、樹脂を射出成形法等によって成形してなるものであり、図１４に示すように、円板部８ａを有している。この円板部８ａの後端面の外周部には、内側筒部２Ａの内径と同一内径を有する環状突出部８ｂが形成されている。図１６に示すように、環状突出部８ｂの内周面には、内側筒部２Ａの先端部２ａの外径と同一内径を有する孔部８ｃが形成され、さらにこの孔部８ｃの後端部内周面には、外側筒部２Ｂの先端部２ｂの外径と同一内径を有する大径孔部８ｄが形成されている。孔部８ｃの内周面には、内側筒部２Ａの先端部２ａが固着されている。大径孔部８ｄには、外側筒部２Ｂの先端部２ｂが移動可能に嵌合されている。図１４に示すように、円板部８ａの先端面の中央部には、外周面に雄ねじ部を有する装着部８ｅが形成されている。この装着部８ｅには、ノズル（図示せず）が螺合固定される。装着部８ｅには、その先端面から円板部８ａの後端面まで延びる吐出口８ｆが形成されている。 The lid 8 is made of resin by injection molding or the like, and has a disk portion 8a as shown in FIG. An annular protruding portion 8b having the same inner diameter as the inner diameter of the inner cylindrical portion 2A is formed on the outer peripheral portion of the rear end surface of the disc portion 8a. As shown in FIG. 16, a hole portion 8c having the same inner diameter as the outer diameter of the tip portion 2a of the inner cylindrical portion 2A is formed on the inner peripheral surface of the annular protruding portion 8b, and further inside the rear end portion of the hole portion 8c. A large diameter hole portion 8d having the same inner diameter as the outer diameter of the tip portion 2b of the outer tubular portion 2B is formed on the peripheral surface. The tip portion 2a of the inner cylindrical portion 2A is fixed to the inner peripheral surface of the hole 8c. The distal end portion 2b of the outer tubular portion 2B is movably fitted in the large diameter hole portion 8d. As shown in FIG. 14, a mounting portion 8e having a male screw portion on the outer peripheral surface is formed at the center of the tip surface of the disk portion 8a. A nozzle (not shown) is screwed and fixed to the mounting portion 8e. The mounting portion 8e is formed with a discharge port 8f extending from the front end surface to the rear end surface of the disc portion 8a.

第２補強リング９は、樹脂を射出成形法等によって成形されている。図１５に示すように、第２補強リング９の内周面には、内側筒部２Ａの後端部２ｃの外径と同一内径を有する孔部９ａが形成され、この孔部９ａの先端部内周面には、外側筒部２Ｂの後端部２ｄの外径と同一内径を有する大径孔部９ｂが形成されている。孔部９ａの内周面には、内側筒部２Ａの後端部２ｃが固着されている。大径孔部９ｂには、外側筒部２Ｂの後端部２ｄが移動可能に嵌合されている。外側筒部２Ｂは、大径孔部９ｂに固着してもよい。第２補強リング９の後端部内周面には、第２補強リング９の後端面から前方へ向かうにしたがって縮径するガイド孔部９ｃが形成されている。 The second reinforcing ring 9 is made of resin by injection molding or the like. As shown in FIG. 15, a hole portion 9a having the same inner diameter as the outer diameter of the rear end portion 2c of the inner cylindrical portion 2A is formed on the inner peripheral surface of the second reinforcing ring 9, and the inside of the tip portion of this hole portion 9a is formed. A large diameter hole portion 9b having the same inner diameter as the outer diameter of the rear end portion 2d of the outer cylindrical portion 2B is formed on the peripheral surface. The rear end portion 2c of the inner cylindrical portion 2A is fixed to the inner peripheral surface of the hole 9a. A rear end portion 2d of the outer cylindrical portion 2B is movably fitted in the large diameter hole portion 9b. The outer cylindrical portion 2B may be fixed to the large diameter hole portion 9b. On the inner peripheral surface of the rear end portion of the second reinforcing ring 9, there is formed a guide hole portion 9c whose diameter decreases from the rear end surface of the second reinforcing ring 9 toward the front.

プランジャ１０は、樹脂からなるものであり、図１５及び図１６に示すように、先端側の小径部１０ａと後端側の大径部１０ｂとを有している。小径部１０ａと大径部１０ｂとは、いずれも断面円形に形成され、同芯に配置されている。小径部１０ａの外径は、内側筒部２Ａの先端部の内径より若干小径になっており、小径部１０ａの長さは蓋体８の環状突出部８ｂの長さより若干長くなっている。したがって、図１６に示すように、小径部１０ａの先端面が蓋体８の円板部８ａの後端面に突き当たったとき、大径部１０ｂが環状突出部８ｂより若干後方に位置している。大径部１０ｂは、内側筒部２Ａの後端部の内径より若干小径になっており、その外周面には断面略三角形状の突条１０ｃが環状に形成されている。突条１０ｃは、大径部１０ｂの長手方向へ互いに離間して二つ形成されている。突条１０ｃは、一つ又は三つ以上形成してもよく、形成しなくてもよい。突条１０ｃの外径は、内側筒部２Ａの後端部の内径より若干大径になっている。突条１０ｃは、内側筒部２Ａ及び第２補強リング９を弾性的に拡径させた状態で内側筒部２Ａの内周面に嵌合されている。これにより、内側筒部２Ａの後端部が閉じられ、ひいては筒部２の後端部が閉じられている。したがって、プランジャ１０は、カートリッジ１Ｂの底部として機能している。突条１０ｃは、内側筒部２Ａの内周面にその長手方向へ移動可能に嵌合されている。したがって、プランジャ１０は、内側筒部２Ａの先端側へ移動可能であり、先端側へ移動させると内側筒部２Ａ内に収容された接着剤又は塗料が吐出口８ｆから押し出される。
なお、プランジャ１０は、ガイド孔９ｂを通って第２補強リング９に挿入され、さらに内側筒部２Ａ内に挿入されている。The plunger 10 is made of resin and has a small diameter portion 10a on the front end side and a large diameter portion 10b on the rear end side as shown in FIGS. The small-diameter portion 10a and the large-diameter portion 10b are both formed in a circular cross section and arranged concentrically. The outer diameter of the small diameter portion 10a is slightly smaller than the inner diameter of the tip portion of the inner tubular portion 2A, and the length of the small diameter portion 10a is slightly longer than the length of the annular protruding portion 8b of the lid 8. Therefore, as shown in FIG. 16, when the front end surface of the small diameter portion 10a hits the rear end surface of the disk portion 8a of the lid body 8, the large diameter portion 10b is located slightly rearward of the annular protruding portion 8b. The large-diameter portion 10b has a diameter slightly smaller than the inner diameter of the rear end portion of the inner tubular portion 2A, and a protrusion 10c having a substantially triangular cross section is formed in an annular shape on the outer peripheral surface thereof. Two ridges 10c are formed apart from each other in the longitudinal direction of the large diameter portion 10b. One or three or more protrusions 10c may be formed or may not be formed. The outer diameter of the protrusion 10c is slightly larger than the inner diameter of the rear end portion of the inner cylindrical portion 2A. The protrusion 10c is fitted to the inner peripheral surface of the inner tubular portion 2A in a state where the inner tubular portion 2A and the second reinforcing ring 9 are elastically expanded. As a result, the rear end portion of the inner tubular portion 2A is closed, and by extension, the rear end portion of the tubular portion 2 is closed. Therefore, the plunger 10 functions as the bottom portion of the cartridge 1B. The protrusion 10c is fitted to the inner peripheral surface of the inner cylindrical portion 2A so as to be movable in the longitudinal direction. Therefore, the plunger 10 is movable to the tip side of the inner tubular portion 2A, and when moved to the tip side, the adhesive or paint contained in the inner tubular portion 2A is pushed out from the ejection port 8f.
The plunger 10 is inserted into the second reinforcing ring 9 through the guide hole 9b, and is further inserted into the inner cylindrical portion 2A.

上記構成のカートリッジ１Ｂにおいては、プランジャ１０を前進させると、カートリッジ１０の突条１０ｃが内側筒部２Ａ及び外側筒部２Ｂを押し広げながら前進する。換言すれば、突条１０ｃが内側筒部２Ａの内周面に密着し、それによって内側筒部２Ａとプランジャ１０との間が封止された状態で前進する。したがって、内側筒部２Ａ内に収容された塗料、接着剤等の流動性物質は、カートリッジ１０と内側筒部２Ａとの間から漏れることなく、カートリッジ１０の前進に伴って前方へ押しやられ、吐出口８ｆから吐出される。そして、小径部１０ａが蓋体８の円板部８ａに突き当たるまで前進することにより、内側筒部２Ａ内に収容された流動性物質のほぼ全部が吐出口８ｆから外部に吐出される。 In the cartridge 1B having the above structure, when the plunger 10 is moved forward, the protrusion 10c of the cartridge 10 is moved forward while expanding the inner cylinder portion 2A and the outer cylinder portion 2B. In other words, the ridge 10c comes into close contact with the inner peripheral surface of the inner tubular portion 2A, and thereby advances in a state where the inner tubular portion 2A and the plunger 10 are sealed. Therefore, the fluid material such as paint and adhesive contained in the inner cylinder portion 2A is pushed forward as the cartridge 10 advances without leaking from between the cartridge 10 and the inner cylinder portion 2A, and is discharged. It is discharged from the outlet 8f. Then, by advancing until the small-diameter portion 10a abuts on the disc portion 8a of the lid body 8, almost all of the fluid substance contained in the inner tubular portion 2A is discharged from the discharge port 8f to the outside.

カートリッジ１０は、前進するときに内側筒部２Ａ及び外側筒部２Ｂを拡径させるので、それらによって前進を阻止しようとする抵抗を受ける。この場合、内側筒部２Ａは、それを構成する積層フィルム５の厚さが薄くて柔軟性が高いのでそれほど大きな抵抗を示さないが、外側筒部２Ｂは、その厚さが厚くて柔軟性が低いので大きな抵抗を発揮する。外側筒部２Ｂによる抵抗は、外側筒部２Ｂの内径が前方へ向かうにしたがって小径になっているので、カートリッジ１０の前進に伴って大きくなる。特に、外側筒部２Ｂの先端部が蓋体８の内周面に嵌合固定されていると、カートリッジ１０が内側筒部２Ａの先端部近傍まで前進したときの外側筒部２Ｂによる抵抗が大きくなり、小径部１０ａが蓋体８の円板部８ａに突き当たるまで前進することができなくなるおそれがある。そこで、このカートリッジ１Ｂにおいては、外側筒部２Ｂを蓋体８に対して移動可能に嵌合させている。このようにすると、カートリッジ１０が円板部８ａの近傍まで移動したときに、図１６に示すように、外側筒部２Ｂの先端部が蓋体８に対して後方へ移動し、その結果外側筒部２Ｂの先端部が拡径しやすくなり、外側筒部２Ｂによる抵抗を比較的小さくすることができるからである。その結果、カートリッジ１０は、蓋体８の円板部８ａに突き当たるまで移動することができる。 When the cartridge 10 moves forward, the diameters of the inner cylindrical portion 2A and the outer cylindrical portion 2B are expanded, and therefore, the cartridge 10 receives resistance to prevent the forward movement. In this case, the inner tubular portion 2A does not show so much resistance because the laminated film 5 constituting the inner tubular portion 2A is thin and has high flexibility, but the outer tubular portion 2B has large thickness and flexibility. Since it is low, it shows great resistance. The resistance of the outer tubular portion 2B increases as the cartridge 10 advances because the inner diameter of the outer tubular portion 2B decreases toward the front. In particular, when the tip of the outer tubular portion 2B is fitted and fixed to the inner peripheral surface of the lid body 8, the resistance of the outer tubular portion 2B when the cartridge 10 advances to the vicinity of the tip of the inner tubular portion 2A is large. Therefore, there is a possibility that the small-diameter portion 10a may not be able to move forward until it abuts the disc portion 8a of the lid 8. Therefore, in this cartridge 1B, the outer tubular portion 2B is movably fitted to the lid 8. With this configuration, when the cartridge 10 moves to the vicinity of the disk portion 8a, the tip of the outer tubular portion 2B moves rearward with respect to the lid body 8 as a result, and as a result, the outer tubular portion 2B moves. This is because the diameter of the tip of the portion 2B is likely to increase, and the resistance of the outer tubular portion 2B can be made relatively small. As a result, the cartridge 10 can move until it abuts on the disk portion 8a of the lid 8.

この発明に係る容器は、バケツや吐出ガン用のカートリッジとして用いることができる。特に、流動性を有する液状の接着剤や塗料を収容する容器として用いるのに好適である。 The container according to the present invention can be used as a bucket or a cartridge for a discharge gun. In particular, it is suitable for use as a container for containing a liquid adhesive or paint having fluidity.

Claims

In a container provided with a housing portion having one end opened made of a flexible film body, and a bottom portion provided at the other end portion of the housing portion and closing the other end portion,
The accommodating part has an inner accommodating part and an outer accommodating part each made of a flexible film body, the outer accommodating part is disposed outside the inner accommodating part, and the inner accommodating part and the outer accommodating part. A container characterized in that and can be moved relative to each other.

The container according to claim 1, wherein the inner housing portion and the outer housing portion are formed separately.

A laminated film formed by co-extruding a resin is used as the film body forming the inner housing portion, and a resin film and an aluminum foil bonded to the inside of the resin film are used as the film body forming the outer housing portion. The container according to claim 1 or 2, wherein a laminated body having a body is used.

The inner accommodating portion and the outer accommodating portion are formed as a cylindrical body with both ends open, the bottom portion is formed separately from the inner accommodating portion and the outer accommodating portion, and the inner accommodating portion and the outer accommodating portion are formed. A reinforcing ring is fixed to one end of the inner accommodating part and the outer accommodating part, and the bottom part is fixed to the other end of the inner accommodating part and the outer accommodating part. The bottom portion has a predetermined strength for maintaining the other end portions of the inner accommodation portion and the outer accommodation portion in a constant shape. The container according to claim 1 or 2.

The inner housing portion is composed of a laminated film formed by co-extruding a resin, and the outer housing portion is composed of a laminated body having a resin film and an aluminum foil bonded to the inside of the resin film. The container according to claim 4, wherein:

The inner accommodating portion is formed longer than the outer accommodating portion, both ends of the inner accommodating portion are projected outward from both end portions of the outer accommodating portion, and an annular protrusion is formed on an end surface of the bottom portion on the accommodating portion side. Is formed, one end of the outer accommodation portion and one end of the inner accommodation portion projecting from the outer accommodation portion are respectively fixed to the inner circumferential surface of the reinforcing ring, and the inner circumferential surface of the annular protrusion of the bottom portion is formed. The container according to claim 5, wherein the other end portion of the outer housing portion and the other end portion projecting from the outer housing portion are fixed to each other.

The container according to claim 2, wherein the flexibility of the outer housing portion is set lower than the flexibility of the inner housing portion.

The inner accommodating portion and the outer accommodating portion are formed as a tubular body with both ends open, the bottom portion is formed separately from the inner accommodating portion and the outer accommodating portion, and one end of the inner accommodating portion is reinforced. The ring is fixed, the bottom is fixed to the other end of the inner housing, the outer housing is movable in the longitudinal direction of the outer housing with respect to the reinforcing ring and the bottom, and the outer housing One end surface and the other end surface of the portion are abutted against the reinforcing ring and the bottom portion, respectively, and the reinforcing ring has a predetermined flexibility for being deformed in the radial direction and one end portion of the inner tubular portion having a constant shape. The container according to claim 7, which also has a predetermined strength for maintaining the above.

The inner accommodating portion and the outer accommodating portion are formed as a tubular body with both ends open, the bottom portion is formed separately from the inner accommodating portion and the outer accommodating portion, and the outer peripheral surface of one end of the inner accommodating portion is formed. A lid that closes one end opening of the inner accommodation portion is fixed, a second reinforcing ring is fixed to the outer peripheral surface of the other end of the inner accommodation portion, and the bottom portion is an inner peripheral surface of the other end of the inner accommodation portion. A discharge port is formed in the lid body so as to be movable in the longitudinal direction of the inner housing portion and fitted in a sealed state, and through which the contents stored in the inner housing portion are discharged to the outside. The container according to claim 2, wherein

10. The container according to claim 9, wherein the flexibility of the outer housing portion is set lower than the flexibility of the inner housing portion.

One end of the inner accommodation portion is projected from one end of the outer accommodation portion, and one end of the inner accommodation portion protruding from the outer accommodation portion is fixed to the inner peripheral surface of the lid body, The one end portion of the accommodating portion is inserted between the outer peripheral surface of the inner accommodating portion and the inner peripheral surface of the lid so as to be movable in the longitudinal direction of the inner accommodating portion. Container.