JP2000309355A - Fluid material container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a laminated member constituting a main body of a container for fluid substance from being bitten between the inner surface of a cylinder and an outer surface of a pushing member, reduce some troubles caused when the container is to be inserted into the cylinder and further reduce an amount of waste material. SOLUTION: A first film member 12 to a fourth film member 15 constitute a laminated member 11. A second film member 13 and a third film member 14, and the third film member 14 and the fourth film member 15 are adhered to each other at each of their opposing entire surfaces. The first film member and the second film member are adhered only at their partial portions and the partial portions are applied as an adhering segment 41. The portions other than the adhering segment 41 are applied as non-adhering segments which can be freely moved from each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a caulking agent,
The present invention relates to a fluid material container for storing various fluid materials such as a sealing agent, an adhesive, and mayonnaise.

[0002]

2. Description of the Related Art In general, this type of container comprises a cylindrical main body having both ends opened, and two bottom members (closing means) for respectively closing both ends of the main body.
A fluid substance such as an adhesive is contained inside. The main body is constituted by a laminated body formed by laminating a plurality of film bodies in order to secure the strength and to reliably shut off the flow of gas between the inside and the outside of the main body. On the other hand, the bottom member is formed as a rigid disk, and a through-hole closed by a shielding film is formed at the center of one of the bottom members. Then, by fixing each bottom member to both ends of the main body, the both ends of the main body are closed, and the shape retention of the whole container is secured.

In the case of using a fluid substance contained in a container, for example, an adhesive, a shielding film closing the through hole is first broken, and then a nozzle is attached to the through hole. Then, the container is inserted into a cylinder of a discharge device such as a discharge gun. Then, the other bottom member of the container is pushed by a pushing member slidably provided in the cylinder. Then, the main body is crushed in a bellows shape from the end on the push plate side, and the adhesive contained in the container is discharged through the through hole and the nozzle.

When the container is pushed by the pushing member, the internal pressure of the main body increases, and the main body expands. As a result, the laminate constituting the main body is strongly pressed against the inner surface of the cylinder, and a part of the laminate is stuck to the inner surface of the cylinder. When the push member moves forward in that state,
A part of the stuck laminate may be caught between the inner surface of the cylinder and the outer peripheral surface of the pushing member. Once bitten, the amount gradually increases as the pushing member advances. When the biting amount exceeds a predetermined amount, the pushing member cannot move forward, and the adhesive cannot be discharged from the container.

Japanese Patent Application Laid-Open No. 56-51265 proposes a method for preventing biting. The bite prevention method is to extrapolate a cylindrical body made of a sheet-like film body into a container and insert the container and the cylindrical body into a cylinder at the same time, and the cylindrical body is formed between the inner surface of the cylinder and the outer surface of the container. An intervening member prevents the stack from being caught.

[0006]

The method disclosed in the above publication has a problem in that the tubular body must be extrapolated to the container every time a new container for a flowable substance is used, which is troublesome. . In addition, after the fluid substance in the container is used up, the cylinder is also disposed of as waste, so that there is a problem that the amount of waste increases.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a cylindrical body formed by a laminated body composed of a plurality of laminated flexible membranes, wherein a fluid material is filled therein. A fluid body container comprising a main body and two closing means for closing both ends of the main body, at least one of two membrane bodies adjacent to each other among a plurality of membrane bodies constituting the laminate. It is characterized in that some of them are laminated so that they can behave independently of each other. In this case, it is desirable that a fixing portion for fixing the two film members to each other is formed between the two adjacent film members, and that portions other than the fixing portion can behave independently of each other. . It is desirable that the fixing portion is formed as an annular fixing portion that extends in a ring shape in the circumferential direction of the main body.
The annular fixing portion may be disposed at one end of the main body, may be disposed at one end and the other end of the main body, or may be disposed at an intermediate portion in the longitudinal direction of the main body. May be. Further, at least one of the fixing portions may be formed as a band-shaped fixing portion extending from one end to the other end of the main body. The fixing portion is desirably formed by bonding the two adjacent film bodies with an adhesive. It is desirable that the two film bodies adjacent to each other be the two film bodies arranged on the outermost side of the cylindrical body. The main body is formed by winding the laminate so that both ends thereof overlap each other, and fixing the innermost film body at one end and the outermost film body at the other end to each other. Can be. Closing means for closing one end opening of the main body is substantially the same diameter as one end of the main body, has rigidity, and is fixed to the circular front bottom member having a central portion formed with a penetration, and a front bottom member. Closing means for closing the other end of the main body, the closing means for closing the other end of the main body comprises a circular rear bottom member having substantially the same diameter and rigidity as the other end of the main body. It is desirable that one end and the other end are fixed to respective peripheral portions of the front bottom member and the rear bottom member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. First, FIGS.
The embodiment of the present invention shown in FIG. 1 will be described.
As shown in FIG.
A front bottom member (closing means) 20 that closes the front end opening of the zero;
Rear bottom member (closing means) 3 for closing the rear end opening of the main body 10
0.

The main body 10 is formed in a cylindrical shape by a laminated body 11 formed by laminating a plurality of (usually three or more) film bodies. Moreover, the main body 10 is formed in a tapered shape so that the diameter gradually decreases from one end (the left end in FIG. 2; hereinafter, referred to as a front end) to the other end (hereinafter, referred to as a rear end). The outer diameter of the main body 10 may be constant over the entire length. Various fluid substances such as an adhesive, sealing, edible jam and the like are accommodated inside the main body 10.

[0010] As shown in FIG.
The width is gradually narrowed from the front end side to the rear end side in accordance with the fact that 0 is formed in a tapered shape. The main body 10 is constituted by. As shown in FIG. 1, the laminated body 11 includes first to fourth four film bodies 12 sequentially laminated from the outer peripheral side to the inner peripheral side of the main body 10.
~ 15.

When the container 1 is inserted into the cylinder C (see FIG. 7) of a discharge gun or other discharge device, the first film body 12 comes into contact with the inner peripheral surface of the cylinder C, and therefore has excellent abrasion strength. It is desirable that the friction coefficient is small. Usually, a resin film is used. In this case, it is desirable to use a transparent polyethylene film having a thickness of 30 to 60 μm. Further, a cast polypropylene (CPP) film may be used.

The second film body 13 is made of a resin film that allows characters, figures, symbols, and the like to be easily printed on the surface thereof (the surface facing the outer peripheral side of the main body 10). And a polyester film having a thickness of 12 to 16 μm. In addition, a film of nylon or oriented polypropylene (OPP) may be used. The characters printed on the surface of the second film body 13 are
Since the first film body 12 is transparent, the first film body 12 is visible from outside the main body 10.

The third film body 14 is for ensuring that the air permeability of the laminated body 11 is eliminated, and usually a metal foil is used. As this metal foil, it is desirable to use an aluminum foil because of its light weight, and its thickness is 9 to 12 μm.
It is desirable to make.

The fourth film body 15 protects the third film body 14 made of aluminum foil and prevents it from being broken during the manufacture of the container 1. Usually, a resin film is used. The material is arbitrary. However, in this case, the same polyethylene film as that of the first film body 12 is used in consideration of the case where the main body 10 is manufactured with the laminate 11. This will be described later.

The second film body 13 and the third film body 14 are
By 0, the entire opposing surfaces are bonded to each other. The third film body 14 and the fourth film body 15 are similarly bonded. On the other hand, the first film body 12 and the second film body 13 are partially adhered to each other by an adhesive 40 (hereinafter, the first film body 12 and the second film body 13 are bonded by the adhesive 40 of the first and second film bodies 12 and 13). Only the bonded portion is referred to as a bonded portion (fixed portion) 41), and the other portions are not bonded. Therefore, the first
The film body 12 and the second film body 13 can behave independently of each other except for the bonding portion 41. Also, the first film body 12 and the second
A gap corresponding to the thickness of the adhesive 40 is formed between the film body 13. An air layer 16 is formed between the first film body 12 and the second film body 13 by filling air into the gap. This air layer 16 helps to improve the shooting strength of the main body 10. Note that the first film body 12 and the second
The film body 13 may be fused to each other instead of bonding.

The first to fourth film bodies 12 to 15 can be formed into a laminate 11 by laminating.
In this case, the adhesive 40 may be applied to at least one of the opposing surfaces of the second film body 13 and the third film body 14 and the third film body 14 and the fourth film body 15 before processing. The first film body 12 and the second film body 13 may be preliminarily coated with an adhesive on at least one of the opposing surfaces where a bonding portion 41 is to be formed.

The laminated body 11 configured as described above is wound once, as shown in FIG.
1b are superimposed. One end 11 that is superimposed
The surface on the inner peripheral side of a (the inner peripheral surface of the first film body 12) and the outer peripheral surface of the other end portion 11b (the outer peripheral surface of the fourth film body 15) are bonded to each other. You. Thereby, the main body 10
Are formed. The same material is used as the material of the first film body 12 and the fourth film body 15 in order to increase the bonding strength between both ends 11a and 11b.

The main body 10 is, as shown in FIG.
It is also possible to form the first end portion 11a, 11b in the radial direction of the main body 10 and adhere the opposing surfaces thereof (the inner peripheral surface of the fourth film body 15) to each other.
However, in this case, the portions 11a, 1
1b are adhered to the outer peripheral surface of the main body 10 after being bonded to each other and then tilted in any arrow direction.
0 becomes thicker. Therefore, it is desirable to configure the main body 10 as shown in FIG. In addition, according to the method of FIG. 5, since the end portions of the fourth film body 15 are adhered to each other, the first film body 12 and the fourth film body 15 may be formed of different materials.

The method of forming the main body 10 from the laminated body 11 may be another method. For example, as long as sufficient adhesive strength can be obtained, the wound end faces of the stacked body 11 may be bonded to each other by abutting each other. In any of the methods, fusion may be performed instead of adhesion.

The front bottom member 20 is formed by molding a relatively hard resin, and has a circular disk portion 21. A cylindrical portion 22 having a double cylindrical shape is formed on the outer peripheral portion of the disk portion 21. The inner diameter of the outer cylindrical portion of the cylindrical portion 22 is substantially the same as the outer diameter of the front end of the main body 10, and the front end of the main body 10 is fitted to the inner peripheral surface of the cylindrical portion 22 and is adhesively fixed. Thereby, the front end opening of the main body 10 is closed. The main body 10 may be fitted and fixed to the outer peripheral surface of the cylindrical portion 22.

A protruding portion 23 protruding in a direction away from the main body 10 is formed at the center of the disk portion 21. The protrusion 23 has a through hole 24 formed therethrough. The through-hole 24 is shielded by a shielding film 25 fixed to a surface of the disk portion 21 facing the inside of the main body 10. Therefore, the fluid substance contained in the main body 10 does not flow out of the through-hole 24.

The rear bottom member 30 has a disk portion 31, and a cylindrical portion 32 protruding toward the main body 10 is formed on the outer periphery of the disk portion 31. The inner diameter of the cylindrical portion 32 is
The outer diameter of the rear end of the main body 10 is substantially the same as that of the rear end of the main body 10. The main body 10 may be fitted and fixed to the outer peripheral surface of the cylindrical portion 32.

FIG. 6 is an exploded view of the laminate 11, in which the formation of the bonding portion 41 is represented by double hatching. As is clear from this, the bonding portion 41 is formed over the entire circumference of the laminate 11, is formed from the front end to the rear end at the center in the width direction of the laminate 11, and has a width at the middle portion in the longitudinal direction. A plurality of portions (three positions in this embodiment) are equally spaced from one side portion to the other side portion in the direction.

Therefore, the laminated body 11 has one side in the width direction (one end 11a in FIG. 4) and the other side (the other end 1 in FIG. 4).
1b) is wound so as to overlap each other to form the cylindrical body 10, and as shown in FIG.
1 forms an annular bonding portion (annular fixing portion) 42 extending in the circumferential direction of the main body 10 and a straight bonding portion (straight fixing portion) extending from the front end to the rear end along the longitudinal direction of the main body 10. 43 are formed. The annular adhesive portions 42 are formed at both ends in the front-rear direction of the main body 10 and at an intermediate portion in total of five places. On the other hand, since the one side portion and the other side portion in the width direction of the laminated body 11 are overlapped with each other, the straight adhesive portions 43 are formed at two positions in the circumferential direction of the main body 10 so as to be 180 ° apart from each other.

Now, portions of the laminated body 11 other than the annular adhesive portion 42 and the straight adhesive portion 43 (the annular adhesive portion 42).
When the non-adhesive portion (non-adhered portion) 44 is defined as a portion surrounded by the straight adhesive portion 41 and the
Since the first film body 12 and the second film body 13 are not bonded to each other, the first film body 12 and the second film body 13 can freely and independently behave.

The case where the fluid substance container 1 having the above structure is used will be described with reference to FIG.
5, and the nozzle N is fitted to the outer periphery of the protruding portion 24. The shielding film 25 can be penetrated using the tip of the nozzle N. Next, the container 1 is inserted into the cylinder C of a discharge gun or other discharge device. When the push plate (push member) B is pushed by the rod R via the piston P,
The main body 10 of the container 1 is crushed in a bellows shape from the rear end side, and the fluid substance contained in the container 1 is discharged from the opening at the tip of the nozzle N.

Here, in the container 1, the first film 12
Most of the second film body 13 and the second film body 13 are not adhered to each other, and can behave freely with each other. As a result, the first film body 12
Function similarly to the cylinder described in the above-mentioned publication, that is, the cylinder externally inserted into the container. Therefore, it is possible to prevent the laminated body 11 constituting the main body 10 from being caught between the inner peripheral surface of the cylinder C and the outer peripheral surface of the push plate B.
Further, since there is no need to extrapolate the cylindrical body to the container 1, the trouble can be saved and the amount of waste can be reduced by the amount of the cylindrical body.

Further, since the annular bonding portion 42 is formed at the rear end of the main body 10, the stack 11 can be more reliably prevented from being caught. That is, the strength (the stiffness) of the portion corresponding to the annular bonding portion 42 of the laminate 11 is the portion corresponding to the non-bonding portion 44 where the first film body 12 and the second film body 13 are not bonded. Greater than the strength.
Therefore, when the rear bottom member 30 of the container 1 is pushed by the push plate B, the laminated body 11 becomes the annular bonding portion 4 formed at the rearmost end side.
It is bent in an annular shape at the boundary between the non-adhesive portion 44 and the non-adhesive portion 44 adjacent thereto. As a result, the main body 10 is reliably crushed in a bellows shape as the push plate B advances. Therefore, the laminate 11
Can be further prevented from being bitten.

Next, the results of an experiment conducted to confirm the effect of preventing biting will be described. In the experiment, the container 1 having the above-described structure according to the present invention was compared with the first film as a container for comparison. The same container as the container 1 was prepared except that the entire opposing surfaces of the body 12 and the second film body 13 were adhered. When the fluid substance was discharged from the container according to the present invention and the comparative container by the same discharging device each of ten containers, in the container according to the present invention, the laminated body was not bitten at all. On the other hand, in the comparative container, the laminated body of all ten containers was bitten, and for one of the containers, the push plate B became immobile on the way, and the container 1 could not be used up.

Next, another embodiment of the present invention shown in FIGS. 8 and 9 will be described. In the following embodiments, configurations different from those in the above-described embodiment will be described, and similar portions will be denoted by the same reference numerals and description thereof will be omitted.

In the fluid substance container 2 according to the embodiment shown in FIG. 8, the outer diameter of the main body 10 is constant from the front end to the rear end side by about 2/3 to 3/4 of the entire length. And a tapered portion 10B so as to have a gradually decreasing diameter from the straight portion 10A to the rear end. In the case of such a main body 10, the straight portion 10
Biting easily occurs at the boundary between A and the tapered portion 10B. Therefore, an annular bonding portion 42 is provided at the boundary. In this case, the annular bonding portion 42 is
Although it is arranged at the rear end of 0A, it may be arranged at the front end of the tapered portion 10B, or may be arranged over both. Of course, in addition to or instead of the annular adhesive portion 42, an annular adhesive portion 42 and a straight adhesive portion 43 similar to the above-described embodiment may be formed.

In the container 3 of the embodiment shown in FIG. 9, the openings at both ends of the main body 10 are narrowed and closed by thick wires (closing means) 50, 50. Also, the main body 1
An annular bonding portion 42 is formed at both ends of the parallel portion excluding the narrowed portion of 0 and at the center thereof. Of course, a straight adhesive portion 43 extending between the annular adhesive portions 42 formed at both ends may be formed.

The present invention is not limited to the above embodiment, but can be changed as appropriate. For example, although at least the annular adhesive portion 42 is formed, only the straight adhesive portion may be formed. However, it is desirable to form the bonding portion 41 over the entire peripheral portion of the laminated body 11, thereby forming the ring bonding portions 42, 42 at both ends of the main body 10 and at least one straight bonding portion. When the bonding portion 41 is formed over the entire peripheral portion of the laminated body 11, when the laminated body 11 is rolled to form the main body 10, both ends of the first film body 12 and the second film body 13 are This is because they can be integrally handled without leaving, and the main body 10 can be easily manufactured. Further, instead of the annular bonding portion 42 and the straight bonding portion 43, a spirally extending bonding portion may be formed. Together with the helical bonding portion, an annular bonding portion may be formed at both ends of the main body. Further, according to the present invention, the first film body 1 disposed on the outermost side
Although the non-adhesive part 44 is formed between the second film body 13 and the second film body 13, the non-adhesive part 44 may be formed between other film bodies. Furthermore, another film body made of the same material as the first film body is interposed between the first film body 12 and the second film body 13, and this film body and the second film body 13 are entirely formed. On the other hand, the bonding portion 41 and the non-bonding portion 44 may be formed between the film body and the first film body 12 while being bonded. By doing so, the strength of the main body 10 can be improved.

[0034]

As described above, according to the container for a fluid substance of the present invention, the laminate constituting the main body of the container is prevented from being caught between the cylinder and the pushing member of the discharge device. Needless to say, there is no need to extrapolate the cylinder to the container, so that it is possible to prevent trouble when mounting the container to the cylinder and reduce the amount of waste. Also, due to the absence of extra material and the reduced amount of adhesive, the laminate is finely folded when the container is crushed, and as a result, when the container is used up, The effect that the remaining amount of the remaining fluid substance can be reduced can be obtained.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a part of a laminate according to the present invention.

FIG. 2 is a side view showing one embodiment of a container for a flowable substance according to the present invention using the laminate shown in FIG. 1;

FIG. 3 is an enlarged cross-sectional view of a part of the container shown in FIG. 2;

FIG. 4 is a view showing one method for manufacturing a main body using the laminate.

FIG. 5 is a view showing another method for manufacturing a main body using the laminate.

FIG. 6 is a plan view showing the entire laminate shown in FIG. 1;

FIG. 7 is a cross-sectional view showing a state where the container shown in FIG. 2 is inserted into a cylinder of a discharge device.

FIG. 8 is a side view showing another embodiment of the present invention.

FIG. 9 is a side view showing still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid substance container 2 Fluid substance container 3 Fluid substance container 10 Main body 11 Laminated body 12 1st film (film) 13 2nd film (film) 14 3rd film (film) Reference Signs List 15 fourth film body (film body) 20 front bottom member (shielding means) 30 rear bottom member (shielding means) 40 adhesive 41 adhesive part (fixed part) 42 annular adhesive part (annular fixed part) 43 straight adhesive part (straight) Fixed part) 44 Non-adhered part (non-fixed part) 50 Wire (shielding means)

Continuation of the front page (72) Inventor Yoji Tanaka 2-6-2 Kodai, Miyamae-ku, Kawasaki-shi, Kanagawa Prefecture Rapport Miyamaeira F-term in Polymer Systems Co., Ltd. 3E065 BA12 BB03 FA11 FA20 GA02 GA03 GA04 JA23

Claims (11)

[Claims] 1. A main body which is formed in a cylindrical shape by a laminated body composed of a plurality of laminated flexible membrane bodies and is filled with a flowable substance therein, and two closing means for respectively closing both end openings of the main body. In the container for a fluid substance, comprising, among a plurality of membranes constituting the laminate, at least some of two membranes adjacent to each other are laminated so as to be able to behave independently of each other. Fluid material container. 2. The method according to claim 1, wherein the two adjacent film bodies are:
The container for a fluid substance according to claim 1, wherein a fixing portion for fixing the two membranes to each other is formed, and portions other than the fixing portion can behave independently of each other. 3. The container for a fluid substance according to claim 2, wherein the fixing portion is formed as an annular fixing portion in an annular shape in a circumferential direction of the main body. 4. The container for a fluid substance according to claim 3, wherein the annular fixing portion is arranged at one end of the main body. 5. The container for a fluid substance according to claim 3, wherein the annular fixing portion is disposed at one end and the other end of the main body. 6. The body according to claim 3, wherein said annular fixing portion is disposed at an intermediate portion in a longitudinal direction of said main body.
A container for a fluid substance according to any one of the above. 7. The fluid substance according to claim 2, wherein at least one of the fixing portions is formed as a band-shaped fixing portion extending from one end to the other end of the main body. Container. 8. The container for a fluid substance according to claim 1, wherein the fixing portion is formed by bonding the two adjacent film bodies with an adhesive. . 9. The flowable material according to claim 1, wherein the two adjacent membranes are two membranes arranged on the outermost side of the cylindrical body. container. 10. The body winds the laminate so that both ends thereof overlap each other, and fixes the innermost film body at one end and the outermost film body at the other end together. The container for a fluid substance according to any one of claims 1 to 9, wherein the container is formed by the above method. 11. A closing means for closing one end opening of the main body, the closing means having substantially the same diameter and rigidity as one end of the main body,
A circular front bottom member having a through hole formed in a central portion thereof, and a shielding film fixed to the front bottom member and closing the through hole, wherein closing means for closing the other end opening of the main body is provided on the main body. It is formed of a circular rear bottom member having substantially the same diameter as the other end and having rigidity, and one end and the other end of the main body are fixed to respective peripheral edges of the front bottom member and the rear bottom member. The fluid substance container according to any one of claims 1 to 10, wherein: