Container, method of manufacturing the same, and installation jig for cartridge container for discharge gun

A container including a cylindrical main body having front and rear end portions opposite each other and being axially collapsible along the longitudinal axis thereof to discharge contents therein through the first end portion. The rear end portion is sealed, and a reinforcing member having a discharge aperture extending therethrough is secured to the front end portion of the cylindrical main body. Additionally, a lid is disposed on the reinforcing member to cover the discharge aperture.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
This invention relates to a container for accommodating fluidized 
substances, such as viscous fluid, liquid and powder, for example, method 
of manufacturing this container, and, in case that this container is a 
cartridge container for a discharge gun, a jig to install this cartridge 
container. 
2. Description of the Prior Art 
Conventionally, there is a cartridge container for a discharge gun as shown 
in FIG. 1 or FIG. 2, as a container to accommodate fluidized substances, 
such as viscous fluid, liquid, and powder, for example. 
A cartridge container 1 shown in FIG. 1 is constituted as follows. Namely, 
a movable base plate 1b is provided slidably along an inside portion of a 
back end of a pipe-like main body 1a base plate 1a being comparatively 
constituted by hard resin. A discharge-opening-portion 1c which has a 
discharge-opening-portion 1c' is formed by the tip section of main-part 
1a. A lid body 1d which closes the discharge aperture 1c' is screwed to 
the discharge-opening-portion 1c. The fluidized substance discharged from 
a discharge gun, for example, adhesive, is accommodated inside thereof. 
The above-mentioned cartridge container 1 is used as shown in FIG. 3. 
Namely, the lid body 1d is removed from the discharge-opening-portion 1c. 
A nozzle N is screwed and fixed. The cartridge container 1 is inserted in 
a cylinder C of a discharge gun, and the movable-base-plate 1b is pushed 
forward by a piston P. Thus, adhesive is discharged from the nozzle N. 
Moreover, a cartridge container 2 shown in FIG. 2 is constituted as 
follows. Namely, a thin film which has pliability is formed in the shape 
of a pipe, and forms a main-body 2a. One end of this main-body 2a is 
sealed by a clamping-ring 2b which consists of a thick metal line, then, 
adhesive is filled up inside of main-body 2a. After that, the other end of 
main-body 2a is sealed by the clamping-ring 2b. 
This cartridge container 2 is, in the state where the end which touches one 
clamping-ring 2b is cut, inserted in the cylinder of the discharge gun 
with a nozzle. The other end of the cartrige container 2 is pushed by the 
piston P. Adhesive accommodated in the cartridge-container 2 is discharged 
in that way from the discharge gun. 
There are strong points and faults in the above-mentioned conventional 
cartridge containers 1 and 2. Namely, since the main-part 1a has high 
rigidity, it is easy to deal with the cartridge container 1 of FIG. 1. 
However, on the other hand, when discarding it, although the inside of the 
main-part 1a is empty, it is discarded in the state where its cylindrical 
shape is maintained. For this reason, there is a problem that a lot of 
scrapped materials are made. On the other hand, the main-body 2a is 
crushed as internal adhesive is used in the cartridge container 2 of FIG. 
2., thereby becoming a small lump in case it is discarded. Therefore, the 
problem of scrapped material is mitigated. However, if one end of 
main-body 2a is cut upon using, the main-body 2a loses its rigidity. For 
this reason, it is difficult to handle. When the main-body 2a is grasped 
by a hand, adhesive floods outside from the main-body 2a with the 
pressure. It adheres to the hand or the discharge gun. 
Moreover, there is a container for enclosing a powder-like object, which is 
weak to humidity, such as powder coffee, among the containers for 
accommodating fluidized substances. 
Such a container must consist of material from which the container itself 
does not let humidity pass. For this reason, a glass container, a metal 
can, or a plastic container formed by the blow molding is used. 
Since glass material lets neither humidity, nor oxygen pass, the glass 
container excels in the dampproofing capability or the gas cut-off 
capability. For this reason, the glass container is rich in keeping 
capability. However, the original form is maintained also after use and 
the glass container has heavyweight. For this reason, it is difficult to 
dispose it due to its weight or volume. Similarly, the used metal can is 
difficult to dispose of due to its weight or volume. 
Moreover, the blow-molded plastic container can overcome the difficulty in 
weight or volume which the glass container and the metal container have at 
the time when the used containers are discarded. However, the present blow 
molding technique cannot make the blow-molded plastic container of a 
thickness less than about 0.7 mm. Moreover, when moisture resistance 
capability and gas cut-off capability are taken into consideration, the 
blow-molded plastic container is limited to the co-extruding blow molding 
product in which polyethylene, polypropylene, etc., are used together with 
barrier base materials, such as the ethylene vinyl alcohol copolymer which 
is synthetic resin material. It is hard to perform the blow molding by 
synthetic material of resin material and metal material, such as aluminum, 
by the present blow molding technique. 
Therefore, a plastic container fabricated in the shape of a pouch using 
plastic lamination film as a material which excelled in the dampproofing 
capability or the gas cut-off capability, is developed. This kind of 
plastic container uses, as a plastic lamination film, material which is 
rich in the dampproofing capability or the gas cut-off capability, so that 
the difficulty in the dampproofing capability or the gas cut-off 
capability can be overcome. Moreover, by the flexibility which the plastic 
lamination film possesses, the plastic container can be changed into a 
compact form. For this reason, the difficulty in weight and volume, which 
the glass container and the metal can possess, is also overcome from the 
viewpoint of a waste disposal. 
The whole weight of a pouch shaped plastic container is light, and the 
volume after use decreases. For this reason, the problem in the viewpoint 
of the waste disposal at the time when a used container is discarded, is 
overcome. However, it is rich in a flexibility since the plastic 
lamination film is used as a material, in a pouch shaped plastic 
container. The plastic lamination film lacks the stability of form as a 
container. When the container is opened, contained substance is taken out, 
and thus the quantity of the content substance remaining in the container 
decreases, the bottom shape of a container becomes unstable. For this 
reason, there is a difficulty that extraction of contained content is 
troublesome even if a spoon is used for extraction of the content object 
remaining in the bottom of the container. 
Moreover, as a container for accommodating fluidized substances, there is, 
for example, a liquid container used for filling up with liquid, such as 
drink water and oil for industry. The gusset type liquid container is 
known as this type of liquid container using flexible film as the 
material. This type of the gusset type liquid container is produced as 
follows. Namely, one pair of gusset portions and one pair of surface 
sections for which the flexible film is used as a material, are prepared. 
Each gusset portion is folded into two portions at the central part in the 
width direction. Each of folded gusset portions is arranged between the 
overlapped surface sections so that the side ends of each of gusset 
portions may match to the side ends of each of the surface section. The 
side ends of each of the surface sections and the side ends of each of the 
gusset portions opposed to the side ends of each of the surface sections, 
the upper and lower ends of each of the surface sections and the gusset 
portions opposed to each other, and the upper and lower ends of the 
surface sections opposed to each other, are respectively heat-sealed to 
each other. A pouring opening is fixed on more internal side than the 
bending ends of the gusset portions at the upper end of the liquid 
container. 
However, in the above liquid container, the pouring opening is fixed on 
more internal side than the bending ends of the gusset portions of the 
upper end of the liquid container. For this reason, the width of the 
surface sections have become greater, by the width of the pouring-opening 
portion, than the width of the gusset portions. Therefore, the liquid 
container becomes an elongated body on the whole. Such the liquid 
container has the problem of being unstable when it is exhibited in the 
state where it is filled with liquid and stands on a shelf. 
Up to now, as a discharge gun for the cartridge container as shown in FIG. 
1, used for adhesives, a gun which is shown in FIG. 4 is the most popular. 
This discharge gun 3 is provided with a grip 3a, a support section 3b 
which extends forward from the upper end of the grip 3a and has a half 
cylinder shape, and a lever 3c installed rotatably at the middle section 
of the grip 3a. If the lever 3c is pulled in the direction of an arrow 
shown in FIG. 4, a rod 3d moves forward. A press-plate 3e installed at the 
tip section of the rod 3d moves forward. In addition, a reference numeral 
3f designates a short cylinder-like end board installed at the tip section 
of support section 3b, and has a horse shoe shape whose upper part, in 
view of the front side, is opened. 
As shown in FIG. 5, the installation of the cartridge container 1 shown in 
FIG. 1 to the discharge gun 3 is performed. Namely, the nozzle N is 
screw-fixed to the discharge-opening-portion 1c instead of the lid body 
1d. The nozzle N is placed on the support section 3b of the discharge gun 
3. And, by pressing the movable-base-plate 1b by the press-plate 3e, and 
advancing it, adhesive filled up inside of the main-part 1a is discharged 
from the nozzle N. 
The cartridge container 1 is discarded after use. However, the thickness of 
the main part 1a is large. For this reason, there is a problem of waste of 
resources. Moreover, the rigidity of the mainpart 1a is comparatively 
high. For this reason, in case it is discarded, there is a problem of 
being bulky. 
For this reason, recently, the cartridge container 2 shown in FIG. 2 is 
used. Upon using, one end of the main-body 2a is cut out, and this 
cartridge container 2 is opened. A nozzle is mounted at the opened end and 
it is mounted on the discharge gun 3. 
However, when the gun 3 is used in the state where the cartridge container 
2 of FIG. 2 is installed to the discharge gun 3, the upper half of the 
support section 3b of the discharge gun 3 is opened widely, so that the 
upper part of the cartridge container 2 is not restrained. Moreover, since 
the main body 2a of the cartridge container 2 is formed of the thin film 
and rigidity of the main body 2a is low, when the cartridge container 2 is 
pushed by the press-plate 3e, the main-body 2a may swell and split. 
For this reason, in the case of using the cartridge container 2, a special 
discharge gun is needed. The discharge gun 3 which is most popular now 
cannot be used. Although, from the viewpoint of saving resources, the 
cartridge container 2 is desirably used, there is a problem that the 
spread of such a container has not progressed. 
SUMMARY OF THE INVENTION 
A first object of this invention is to provide a container for a cartridge 
container for a discharge gun, and a manufacturing method of the 
container, which can reduce the amount of scrapped material after use, 
which is easy to deal with, which can prevent a contents therein from 
flowing out, and which can therefore prevent a contents therein from 
adhering to a hand or the discharge gun. 
A first invention for attaining the above-mentioned first object is a 
cartridge container for single liquid type adhesive used for a discharge 
gun. In order to attain the above-mentioned object, the container has the 
following elements. A main body is formed by a flexible film in the shape 
of a pipe. And, at least the back end of the main body is closed. In order 
to hold form of the tip section of the main body, a reinforcing member is 
installed at the tip section. And, the reinforcing member has a discharge 
aperture for discharging the contents accommodated inside of the main 
body. A lid body closes the discharge aperture of the reinforcing member. 
A second invention for attaining the above-mentioned first object is used 
for the discharge gun. And, it is a container for a cartridge which mixes 
two or more fluidized substances like a double liquid type adhesive, and 
discharges it. In order to attain the above-mentioned object, the 
container has the following elements. Each of two or more main bodies is 
formed by a flexible film in the shape of a pipe. At least the back end of 
each of the main bodies is closed. The main bodies are arranged in order 
with each other. In order to hold form of the tip section of each main 
body, two or more reinforcing members are installed respectively at the 
tip section of each main body. And, each reinforcing member has a 
discharge aperture for discharging the contents accommodated inside of 
each main body, respectively. One lid is engaged with each reinforcing 
member so as to combine each reinforcing member in one piece. And, the lid 
closes the discharge aperture of each reinforcing member. 
The discharging of the fluidized substance filled in the main body, is 
performed by compression of the main body formed by the film according to 
the container of the above-mentioned first invention or second invention. 
It is easy to handle the main body since the tip section is held by the 
reinforcing member in a predetermined form. Moreover, it becomes possible 
to prevent the pressure from being applied to the main body by means of 
the reinforcing member. 
A third invention for attaining the above-mentioned first object has the 
following elements. A main body has a pipe section and a board section 
formed at the end of this pipe section. The main body is formed of a 
flexible film. A reinforcing member is formed so that a discharge opening 
portion which has a discharge aperture may project therefrom. The 
reinforcing member is fixed, at its outer surface, onto the end of said 
main body in the state where the discharging opening portion is penetrated 
from the inner side through an insert aperture formed on an edge wall 
surface of said main body. 
A fourth invention is the invention for manufacturing the container related 
to the above-mentioned third invention. In the manufacturing method which 
relates to this fourth invention, a film is folded and overlapped at its 
central part. The overlapped either-side sections of the film are adhered 
to each other to form a bag body which one end is closed and the other end 
is opened. The insert aperture to which the discharge opening portion of 
the reinforcing member is inserted, is formed at the one end at which the 
bag body is closed. The reinforcing member is inserted in the bag body 
from the opening section. After the discharge opening portion passes 
through the insert aperture, the front of the reinforcing member is fixed 
to the front of the bag body. 
According to the container of the above mentioned third invention and the 
container manufactured by the manufacturing method of the fourth 
invention, the internal diameter of the main body is set to be slightly 
greater than the external diameter of the reinforcing member. For this 
reason, the reinforcing member is inserted in the main body easily. 
Moreover, even when the inner diameter of the main body is greater than 
the external diameter of the reinforcing member, wrinkles do not occur at 
the bottom. Therefore, the fluidized substance accommodated inside of the 
main body is not leaked from between the main body and the reinforcing 
member, though the bottom and the front of the reinforcing member are 
welded. 
Each main body is formed of the thin film which has flexibility in the 
container for the cartridge for discharge guns of the above-mentioned 
first invention, the second invention or the third invention. The 
reinforcing member holding form of the main body, is installed at the tip 
section of the main body. Therefore, the following effect is obtained. 
Quantity of scrapped material after use decreases. Treatment is still 
easy. Unwanted flow of contents is prevented, so that the contents do not 
adhere to a hand or the discharge gun. 
Moreover, the main body and the reinforcing member are welded easily by the 
manufacturing method of the above-mentioned fourth invention. For this 
reason, the container for the cartridge for discharge guns is manufactured 
easily. 
A second object of this invention is to provide a container and 
manufacturing method of this container, which can solve the problem of the 
waste disposal at the time of discarding a used container, which can 
secure the stability of form of a container, and which can take out the 
contents after opening briefly and certainly since the stability of form 
is secured. 
The container of a fifth invention for attaining the above-mentioned second 
object, has the following elements. A pipe-like intermediate barrel 
portion is formed of a flexible film. An upper solid portion is formed of 
solid resin material. And, the upper solid portion is fixed to the upper 
end of the intermediate barrel portion. A lower solid portion is formed of 
solid resin material. And, a lower solid portion is fixed to the lower end 
of the intermediate barrel portion. 
A sixth invention is the invention for manufacturing the container of the 
above-mentioned fifth invention. According to this manufacturing method of 
the sixth invention, the pipe-like intermediate barrel portion formed of 
the flexible film is coated on a mandrel which functions as a die core. 
The mandrel on which the intermediate barrel portion is coated is mounted 
on an upper die and a lower die. Melt-plastic resin material is poured, by 
an insert injection molding means, into the upper die and the lower die. 
The upper solid portion and the lower solid portion are formed in one 
piece at the end of the intermediate barrel portion. 
The intermediate barrel portion is flexible in the container of the 
above-mentioned fifth invention. Thus, when the contents are 
vacuum-packaged, the vacuum degree of the container can be judged by the 
deformation of the container, for example, transformation of the 
intermediate barrel portion. The judgment of poor packing is easy. 
According to the manufacturing method of the sixth invention, the upper 
solid section and the lower solid section are combined, by the insert 
injection molding means, into one body with the intermediate barrel 
portion, for which the film having flexibility is used as material. Thus, 
adhesion of the intermediate barrel portion and the upper solid section, 
and adhesion of the intermediate barrel portion and the lower solid 
section can be established without using adhesives. Wrinkles are not 
formed by the function section of the intermediate barrel portion of the 
container. The form of the intermediate barrel portion is stabilized. The 
width of material selection of the film which constitutes the intermediate 
barrel portion, becomes wide. As the result, manufacturing of the 
container in accordance with the object of usage, becomes possible. 
A third object of this invention is to provide a gusset type container, for 
which the flexible film is used as material, and a manufacturing method of 
this container, which is shaped in a cubic on the whole, which capacity 
efficiency is high, and which can maintain a stable condition when it is 
stood. 
The container of a seventh invention for attaining the above-mentioned 
third object has a gusset type container main body as follows. One pair of 
surface sections for which the flexible film is used as material, are 
prepared. One pair of gusset portions each having a width almost equal to 
the width of the surface section, is prepared. These gusset portions are 
folded into two portions at its central part in the width direction. Each 
gusset portion folded into two portions, is arranged between the 
overlapped surface sections such that the side ends of the gusset portion, 
and each side end of the surface sections may be matched to each other. 
The side ends of the surface section, and the side ends of the gusset 
portion are-heat-sealed to each other. 
A V-shaped heat sealed portion which spreads at the angle of about 45 
degrees on either side from the position on the axis in the longitudinal 
direction of the container main body at one end of the surface section of 
the container main body, and the cross heat sealed portion, which crosses 
the V-shaped heat sealed portion in the direction perpendicular to the 
axis of the longitudinal direction of the container main body, are formed. 
The portion located, at more end than the V-shaped heat sealed portion and 
the cross heat sealed portion of the container main body, is cut. A 
trapezoid heat sealed portion is formed at the end of the container main 
body. The zone including the central portion of the trapezoid heat sealed 
portion, is cut. Thereby, an opening portion is formed. A pouring opening 
is fixed to the opening portion. 
An eighth invention is the invention for manufacturing the container of the 
above-mentioned seventh invention. In the manufacturing method of the 
eighth invention, one pair of surface sections for which the flexible film 
is used as material, and one pair of gusset portions whose width is almost 
equal to the width of the surface section, are prepared. These gusset 
portions are folded into two portions at its central part of the width 
direction. Each folded gusset portion is arranged between the surface 
sections which are overlapped such that the side ends of the gusset 
portion, and each side ends of the surface sections may be matched to each 
other. The side ends of the surface section, and the side ends of the 
gusset portion, are heat-sealed to each other. Thus, the gusset type 
container main body is formed. The V-shaped heat sealed portion, which 
spreads at the angle of about 45 degrees on either side from the position 
on the axis in the longitudinal direction of the container main body at 
the one end of the surface section of the container main body, and the 
cross heat sealed portion, which crosses the V-shaped heat sealed portion 
in the direction perpendicular to the axis of the longitudinal direction 
of the container main body, are formed. The portion, which is located at 
more end than the V-shaped heat sealed portion and the cross heat sealed 
portion of the container main body, is cut. The trapezoid heat sealed 
portion is formed at the end of the container main body. The zone 
including the central portion of the trapezoid heat sealed portion is cut. 
Thereby, the opening portion is formed. The pouring opening is fixed to 
the opening portion. 
According to the container of the above-mentioned seventh invention, and 
the container manufactured by the manufacturing method of the eighth 
invention, a portion of the container is cut at more forward end than the 
V-shaped heat sealed portion and the cross heat sealed portion of the 
container main body. The trapezoid heat sealed portion is formed. The 
pouring opening is fixed to the opening portion formed by cutting the zone 
including the central portion of the trapezoid heat sealed portion. Thus, 
although, at least six folded seal portions are formed in the conventional 
method, the junction section of the container main body is triplicated at 
just four places in the present invention. Therefore, a stable seal is 
obtained. Moreover, the pouring opening is disposed at the end surface of 
the container whose profile is rectangular such that it covers the whole 
end surface. 
A fourth object of this invention is to provide an installation jig for a 
cartridge container for discharge guns. When the cartridge container, 
having a main body is formed of a thin film, etc. in a condition where a 
spread type discharge gun is mounted thereon, is used, the jig can prevent 
the cartridge container from being torn. By this, the spread of the 
cartridge container can be promoted. 
A ninth invention for attaining the above-mentioned fourth object has the 
following elements. A jig main body is formed in the shape of a pipe. A 
piston is inserted inside of the jig main body slidably. 
In this case, it is desirable that a ring-like projection section is formed 
at the peripheral portion of both end surfaces of the piston. It is also 
desirable that the height of the projection portion gradually increases as 
it extends outwardly radially from the above mentioned piston. 
The installation jig in the above-mentioned ninth invention is the 
installation jig for the container of the first invention, the second 
invention and the third invention. The piston is located at one end side 
of the jig main body. The container is inserted from the opening portion 
of the other end. In this case, the container is opened. A nozzle is 
mounted on the side end currently opened. And, the installation jig is 
installed to a support section of a discharge gun. The piston is pressed 
by a press plate of the discharge gun, and is moved forward to the other 
side. By this, adhesive filled in the cartridge container, is discharged 
from the nozzle. 
Here, the whole outer circumference of the cartridge container is 
restrained by the jig main body. Therefore, the jig main body is not torn 
during usage. The container is crushed gradually from the piston side end 
portion. Here, in case that the projection portion is formed at the 
peripheral portion of the end surface of the piston, the cartridge 
container is crushed finely in a shape like an accordion. Almost all of 
the internal adhesive, etc. can be discharged efficiently. Especially, 
this tendency is remarkable when the height of the projection section 
becomes gradually higher as it extends outward. It can be prevented that a 
part of container formed of the thin film is involved into a space between 
the jig main body and the piston. 
A tenth invention for attaining the above-mentioned fourth object is 
provided with a jig main body formed in a shape of a hollow cylinder. Two 
or more grooves are formed on the inner surface of the front end of the 
jig main body such that they may be prolonged toward the back end side in 
parallel with the direction of the axis of the jig main body. 
According to the installation jig by the above-mentioned tenth invention, 
the container is installed by inserting the container into the inside of 
the installation jig from the front end side or the back end side of the 
installation jig. The container is installed to the discharge gun together 
with the installation jig. And, the jig main body of the container is 
compressed by the advance of the piston of the discharge gun. Contents are 
discharged from a nozzle. 
In this manner, the jig main body of the container is compressed, so that 
the discharging of the contents is completed. At this time, the container, 
which has become a small lump, is taken out from the front end side of the 
installation jig and is exchanged. In this case, the contact area of the 
compressed container and the inner surface of the installation jig is 
diminished by the grooves formed on the inner surface of the installation 
jig. Therefore, the friction resistance decreases. Thus, the extraction of 
the container becomes easy. 
The following effect is obtained by the installation jigs of the 
above-mentioned ninth and tenth inventions. Namely, it can be effectively 
prevented that the cartridge container is torn, even if the cartridge 
container, which the main body is formed of the thin film, is used with 
respect to the discharging gun of the spread type. The spread of the 
cartridge container is promoted. As a result, saving resources can be 
attained.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
The following is explanation of the embodiment of each invention based on 
the drawings. 
FIG. 6 is an example in case this invention is adapted to a cartridge 
container. FIG. 6 is a partially broken side view of a cartridge container 
10. As shown in FIG. 6, the main constitution elements of the cartridge 
container 10 are a main body 11, a reinforcing member 12 and a lid 13. 
The main body 11 is constituted such that a film 11a which has pliability 
is formed in the shape of a pipe. The main body 11 may be formed in the 
shape of a pipe without a joint by an extruding molding, etc.. However, 
the film 11a is rounded in this embodiment. One side section and the other 
side section are overlapped, and one side section and the other side 
section are bonded or fused, so that the main body 11 is formed in the 
shape of a pipe. 
A single layer structure may be sufficient as the film 11a. However, as 
shown in FIG. 8, a four layers structure, which is constituted by 
laminating polyester film t, polyethylene film u, aluminum foil v and 
polyethylene film w arranged one by one toward the outside from the inner 
side, is employed. Of course, other laminated structures may be employed. 
Thin film made from other materials may be laminated. In addition, if the 
pliability and quantity of scrapped material at the time of being 
discarded are taken into consideration, the thickness of the film 11a is 
desirably not more than 200 micrometers. In this embodiment, the 
thicknesses of the above-mentioned four layers, are set respectively to be 
12 micrometers, 15 micrometers, 7 micrometers, and 50 micrometers. The 
thickness of the film 11a is set to be 84 micrometers. 
The back end of the main body 11 is squeezed at its central part, and it is 
banded together by a clamping ring 14 which is made of a thick wire. In 
addition, the union by the clamping ring 14 is performed after filling the 
inside of the main body 11 with the contained content, which has fluidity, 
such as adhesives, as mentioned later. 
On the other hand, as shown in FIG. 7, a reinforcing member 12 is fixed to 
the inner circumference side of the tip section of the main body 11 by 
means such as adhesion. 
The reinforcing member 12 is formed from hard resin. The reinforcing member 
12 has physical strength which does not change shape even when an external 
force is applied thereto. The reinforcing member 12 includes a short 
cylinder section 12a fixed to the inner circumference side of the tip 
section of the main body 11, a roof board section 12b formed at the tip of 
the short cylinder section 12a, and a discharge-opening-portion 12c formed 
so that it projects outward from the central part of the roof board 
section 12b. A discharge aperture 12d, which penetrates from the tip of 
the discharge-opening-portion 12c to the back end of the roof board 
section 12b, is formed at the central part of the short cylinder section 
12a. The discharge aperture 12d is covered with a seal 15 stuck on the 
back end side of the roof board section 12b. Moreover, a male screw 12e is 
formed on the outer-circumference surface of the discharge-opening-portion 
12c. 
A lid 13 is formed from translucent and comparatively hard resin. The lid 
13 has a lid section 13a which is screw engaged with a male screw 12e, and 
a nozzle section 13b of circular cone shape formed in one body with the 
lid section 13a. The tip section of the nozzle section 13b is closed. The 
lid section 13a is screwed to the male screw 12e of the reinforcing member 
12, and when it is screwed tightly, the discharge aperture 12d is closed. 
However, at the time of use, the tip section of the nozzle section 13b is 
opened by cutting. In this case, in order to perform cutting easily and 
selecting an opening radius suitably, two or more cut grooves 13c are 
annularly formed with a predetermined interval at the tip section outer 
circumference of the nozzle section 13b. 
Filling of contents into the cartridge container 10 is performed as 
follows. Namely, the contents are filled up from the back end of the main 
body 11, after fixing the reinforcing member 12 to the tip section of the 
main body 11. Then, the back end of the main body 11 is closed by the 
clamping ring 14. 
Moreover, in case of using the cartridge container 10, the seal 15 is torn 
after removing the lid 13. After that, the lid body 13 is attached thereto 
and the nozzle section 13b of the lid 13 is cut at one of those cut 
grooves 13c. And, contained content of proper quantity, etc., can be 
discharged from the nozzle section 13b by inserting the cartridge 
container 10 to a cylinder of a discharge gun, and by pushing the back end 
with a piston in the same manner as the case of FIG. 3. 
The above-mentioned cartridge container 10 is formed of the film 11a so 
that the main body 11 has pliability. However, even after opening the 
nozzle section 13b, by installing the reinforcing member 12 at the tip 
section of the main body 11, the treatment of the cartridge container 10 
becomes easy. Moreover, if the portion of the reinforcing member 12 is 
grasped, pressure at the time of being grasped does not act on the inside 
of the main body 11. Therefore, the content accommodated inside of the 
main body 11 does not flow out from the nozzle section 13b. 
Since the main body 11 comprises the film 11a, quantity of scrapped 
material decreases. Moreover, the main body 11 is compressed gradually in 
the longitudinal direction as contained content is discharged, and it 
becomes a small lump after use. Therefore, conveyance of scrapped material 
and disposal become easy. 
Another embodiment of the cartridge container of this invention is shown in 
FIG. 9. A cartridge container 20 of this embodiment is formed as follows. 
Namely, an end surface 21a is formed at a tip section of a main body 21, 
integrally or by means of fusing. Moreover, the tip section of the main 
body 21 is inserted into an inside of a reinforcing member 22, and is 
fixed. The tip section of the main body 21 is closed by the end surface 
21a in the cartridge container 20. Therefore, there is no necessity 
sticking the seal 15 separately as in the case of the embodiment of FIG. 
6. In addition, since a lid 23 does not have a nozzle section, when the 
cartridge container 20 is used, the lid 23 is removed from a 
discharge-opening-portion 22a. A nozzle prepared separately is screwed to 
be fixed. 
Other embodiments of the cartridge container by this invention are further 
shown in FIG. 10 to FIG. 12. FIG. 10 is a side cross sectional view, from 
which a part of cartridge container is cut. FIG. 11 is a view as viewed in 
the direction of arrow A of FIG. 10 in the state where a lid 33 is 
removed. 
This embodiment is a cartridge container for double liquid type adhesive. 
In cartridge containers 30, 30' of this embodiment, main bodies 31 and 31' 
are respectively formed into a half cylinder shape, using films 31a, 31'a 
with pliability in the same manner as the above-mentioned embodiment. The 
back end of each main body 31, 31' is closed by a clamping ring 34 as in 
the above-mentioned embodiment. 
Moreover, each of reinforcing members 32 and 32' consists of short cylinder 
sections 32a, 32'a, roof board sections 32b, 32'b, and 
discharge-opening-portions 32c, 32'c as in the above-mentioned embodiment. 
Each cross-sectional shape of the reinforcing members 32, 32' is formed in 
a half-circle shape as in the main bodies 31, 31'. Each 
discharge-opening-portions 32c, 32'c is formed at the central part of the 
bowstring side portion of the roof board sections 32b, 32'b. The 
cross-sectional form of the discharge-opening-portions 32c, 32c' is formed 
in a half circle shape, respectively. The bowstring side portion of each 
discharge-opening-portions 32c, 32'c is formed such that it is positioned 
on the same plane as the bowstring side portion of each of short cylinder 
sections 32a, 32'a, respectively. And, the outer-circumference surface of 
the short cylinder sections 32a, 32'a, and the bowstring side external 
surface and the bowstring side external surface of the 
discharge-opening-portions 32c, 32'c are covered with the films 31a, 31'a. 
In the cartridge containers 30, 30' constituted as mentioned above, the 
cartridge container of cylinder form is formed, on the whole, by arranging 
bowstring side portions 311a, 311'a of the films 31a, 31'a, so as to be 
opposed to each other. At this time, the discharge-opening-portions 32c, 
32c' touch to each other through the bowstring side partials 311a, 311'a 
of the films 31a, 31'a. 
Male screws 32d, 32'd are formed respectively on the outer-circumference 
sides of the discharge-opening-portions 32c, 32'c. When the cartridge 
containers 30, 30' are arranged by uniting the backs with each other as 
mentioned above, these male screws 32d, 32'd constitute one screw section 
which continues on the whole. And, by screwing and binding the lid body 33 
tightly to the screw parts 32d, 32'd, which continue to each other, the 
reinforcing members 32 and 32' are fixed in one piece, so that the main 
bodies 31 and 31' are unified. Moreover, discharge-apertures 321c, 321'c 
respectively formed on the discharge opening portions 32c, 32'c, are 
covered by the lid 33. 
Contents, such as adhesives, are filled up from the back end of each main 
bodies 31, 31' in the state where the lid body 33 is screwed to the screw 
parts 32d, 32'd. After that, the back end of each main bodies 31, 31' is 
closed by the clamping rings 34 and 34'. This operation is the same as 
that of the above-mentioned embodiment. 
As shown in FIG. 12, a nozzle N' for mixture is screwed to the screw parts 
32d, 32'd, and is fixed to it, after removing the lid 33, when using the 
cartridge containers 30, 30'. In addition, the nozzle N' for mixture is 
constituted by a base section N'1, which is screwed to the screw sections 
32d, 32'd, and a cylindrical section N'2 follows the base section N'1. The 
nozzle N' for mixture is screwed in until the end surface of base section 
N'1 abuts against the roof board sections 32b, 32'b. In this case, two or 
more ribs N'3 are formed, which are prolonged up to the end surface of the 
base section N'1 on the outer circumference of the base section N'1, in 
order to increase strength at the time when the base section N'1 is 
screwed. Moreover, many fins (not illustrated) are formed in the inner 
circumference surface of the cylindrical section N'2. 
The cartridge containers 30, 30' are inserted into the cylinder of a 
discharge gun after the attaching nozzle N'. The back ends are pushed by a 
piston, so that contained content is discharged respectively from each 
discharge-apertures 321c and 321'c. Discharged contents are mixed by 
churning or stirring with the fins formed inside of the cylindrical 
section N'2, when passing through the cylindrical section N'2 of nozzle 
N', and is discharged from the tip section of the cylindrical section N'2. 
In addition, though the lid 33 without a nozzle is used in the 
above-mentioned embodiment, the lid body with a nozzle may be used. 
However, in that case, if the contents accommodated in each of main body 
31, 31' contact each other, they will solidify. For this reason, each of 
discharge-apertures 321c, 321'c need to be covered with a seal, etc.. 
When the combination of the contents mixed at the time of use is determined 
before-hand, two main bodies 31,31' are combined to form one unit with the 
lid 33 screw-engaging with screw parts 32d, 32d', so that the cartridge 
containers 30, 30' are not separated. 
When the contents to be mixed from prepared contents of several kinds, are 
selected and used arbitrarily, the half-cylinder type lid, which suits an 
external form of the discharge opening-portions 32c, 32'c, is prepared. 
The cartridge containers 30, 30' are sealed by the half-cylinder type lid 
body respectively and individually. 
The way of attaching the nozzle N' for mixture at the time of use, etc., is 
the same as the case of the above-mentioned embodiment. 
Moreover, in each of the above mentioned embodiments, two pieces of 
half-cylinder type cartridge containers are combined to be used. When 
three or more kinds of contents are to be mixed, three or more cartridge 
containers may be put together. In this case, according to the number of 
the cartridge containers to be put together, the cross-sectional form of a 
main body, a reinforcing member, and a discharge opening portion, are 
formed such that the central angle of a sector in cross sectional view of 
each container becomes an angle of 2 .pi./n. 
Another embodiment of the cartridge container by this invention is further 
shown in FIG. 13 and FIG. 14. 
FIG. 13 indicates a cartridge container 40 for discharge guns in this 
embodiment. This cartridge container 40 has a main body 41, a reinforcing 
member 42, a lid 43, and a clamping ring 44. 
The main body 41 is formed of a film which has pliability. The main body 41 
has a cylindrical section 41a which is in the shape of a cylinder, and a 
tip wall section 41b formed at the tip section of the cylindrical section 
41a. An insert aperture 41c is formed such that it may communicate inside 
and outside at the central part of the tip wall section 41b. The back end 
of the main body 41 is squeezed and sealed at the central part. In this 
embodiment, the back end of main bodies 41 are bundled together by the 
clamping ring 44 formed of a thick wire. Although it is sealed by this 
manner, it may be sealed by means of welding. 
Single layer structure may be employed as the film which forms the main 
body 41. However, a four layer structure in which polyester film, 
polyethylene film, aluminum foil and polyethylene film are laminated so as 
to be arranged one by one toward the outside from the inner side, as shown 
in FIG. 8. Of course, other laminated structures are sufficient. Thin film 
of other materials may be laminated. However, as after-mentioned, for the 
welding of the main body 41 and the reinforcing member 42, the thin film 
of the most outer layer must be formed of material to which welding is 
impossible, and the thin film of the most inner layer must be formed of 
material to which welding is possible. 
The reinforcing member 42 is formed from resin, which is hard and to which 
welding is possible with the most inner layer of the layers of the film 
composing the main body 41 (in this embodiment, polyethylene film is 
used). The reinforcing member 42 has physical strength which does not 
change its shape even when external force is applied. The reinforcing 
member 42 is provided with a short cylinder section 42a, which has a 
radius slightly smaller than the inner radius of the main body 41, a front 
wall section 42b, which is formed at the tip section of the short cylinder 
section 42a, and a discharge-opening-portion 42c, which is formed such 
that it projects at the central part of the front wall section 42b. The 
discharge-opening-portion 42c and the discharge aperture 42d which 
penetrates the front wall section 42b, are opened at the tip surface of 
the discharge-opening-portion 42c. This discharge aperture 42d is sealed 
with a seal 44 stuck on the rear surface of the front wall section 42c. A 
male screw 42e is formed at the outer-circumference surface of the 
discharge-opening-portion 42c. 
As shown in FIG. 14, the reinforcing member 42 is inserted into the 
main-body 41 from the back end opening portion of the main body 41. The 
discharge-opening-portion 42c is inserted into the insert-aperture 41c 
until the front surface of the front wall parts 42d abuts against the tip 
wall section 41b. And, the front surface of the front wall section 42b is 
fixed at the tip wall section 41b. The main body 41 and the reinforcing 
member 42 may be bonded with each other. However, here they are welded. 
For example, a ring-like trowel is used for welding. The trowel is heated 
and is pushed against the area other than the tip wall section 41b of the 
external surface, so that welding is performed. 
The lid 43 is formed from translucent and comparatively hard resin. The lid 
43 has a lid section 43a which screws onto the male screw 42e, and a 
nozzle section 43b in the shape of a circular-cone formed in one body with 
the lid section 43a. The tip section of the nozzle section 43b is closed. 
Therefore, when the lid section 43a is screwed to the male screw 42e to be 
bound tightly, the discharge aperture 42d is closed. However, at the time 
of use, the tip section of the nozzle section 43b is opened by cutting. In 
this case, in order to perform cutting easily and selecting an opening 
radius suitably, two or more ring-like cut grooves 43d are formed at the 
tip outer circumference section of the nozzle section 43b. 
The main body 41 is formed of film which has pliability. However, the 
reinforcing member 42, which has rigidity, is attached to the tip section 
of the main body 41. Thus, the cylindrical section 41a of the main body 41 
can be held by hand. Thereby, the treatment becomes easy. Moreover, the 
reinforcing member 42 receives pressure applied to the main body 41 from a 
hand, at this time. Thus, the main body 41 is not crushed abruptly. 
Therefore, even after opening the seal 44 and the nozzle section 43b, the 
contained content accommodated inside of the main body 41 does not flow 
out carelessly from the nozzle section 43b. 
Moreover, the main body 41 is formed of thin film. Therefore, it is crushed 
as it is used. And, after use, the main body 41 becomes a small lump, so 
that the quantity of scrapped material decreases, and the conveyance and 
the disposal of the main body 41 become easy. 
Further when the tip wall section 41b of the main body 41 is attached to 
the reinforcing member 42, even if the inner diameter of the main body 41 
is greater than the outer diameter of the short cylindrical section 42c of 
the reinforcing member 42, wrinkles are not generated at the tip wall 
section 41b. Thus, the fixation of the main body 41 and the reinforcing 
member 42 is possible in the state where the tip wall section 41b and the 
front wall section 42b contact each other over the whole region. 
Therefore, leakage of contents is certainly prevented. 
Moreover, in case that the main body 41 and the reinforcing member 42 are 
welded, it is sufficient that the ring like trowel is pushed once as 
mentioned above. Thus, time required for welding is mitigated. 
Apart from that, when the main body 41 and the reinforcing member 42 are 
welded, the main body 41 must not be welded to the trowel. Therefore, it 
is required to the main body 41 that the material of an outside and an 
inner side should differ from each other. It is desirable that film which 
constitutes the main body 41 has multiple layer structure. However, it is 
very hard to form the cylindrical section 41a of the main body 41 and the 
tip wall section 41b into one piece by use of the film of multiple layer 
structure. Therefore, the inventors of this application have studied hard, 
and have provided a manufacturing method which can easily manufacture the 
above-mentioned cartridge container. 
FIG. 15 to FIG. 21 are explanatory views with respect to the manufacturing 
method of the above-mentioned cartridge container. In addition, the 
cartridge container manufactured by the manufacturing method explained 
below, is different from the cartridge container 40 of FIG. 13, only as 
for the main body, while other constitution elements are the same as those 
of the cartridge 40. Therefore, the same reference numerals are given to 
the same elements. 
Upon manufacturing the cartridge container, a main body 51, the reinforcing 
member 42, and the lid 43 are manufactured first. In this case, the 
reinforcing member 42 and the lid 43 can be manufactured by known molding 
method, such as an injection molding. The main body 51 is manufactured as 
follows. 
Namely, as shown in FIG. 15, long and slender film F is folded at the 
central part of the longitudinal direction. Next, as shown in FIG. 16, the 
either-side section (portions to which the hatching are given) of the 
overlapped portions, is respectively fixed by means, such as welding (the 
melding sections are shown by a reference numeral 52). Thus, the main body 
51 whose one end on the side of folding is closed and other end is opened, 
is formed in this manner. And, an insert-aperture 51c is formed at one end 
of the main body 51. In this case, the film F is overlapped. For this 
reason, a circular insert-aperture 51c is formed by clipping in the shape 
of a half-circle. 
As shown in FIG. 17, the main body 51 is manufactured from broad film F'. 
In this case, the film F' is folded and overlapped. Both end portions are 
welded. Two or more intermediate places are welded along the both side 
sections. At this time, the width of non-welding portion is, of course, 
the same as that of the width W of the film F. Moreover, a width of a 
intermediate welding section 53 is increased two times of the width of the 
welding section 52 of either side. The central part of each welding 
section 53 is cut after welding, so that many main bodies 51 can be 
produced concurrently. 
Next, as shown in FIG. 18, the reinforcing member 42 is inserted inside of 
the main body 51 from the opening section. In this case, as shown in FIG. 
19, a tip section of a mandrel M is engaged to the short cylindrical 
section 42a of the reinforcing member 42. By supporting with the mandrel 
M, insertion becomes easy. Moreover, when the discharge aperture 42d of 
the reinforcing member 42 is sealed by the seal material 44 (refer to FIG. 
13), it can be prevented that the reinforcing member 42 drops out from the 
mandrel M by carrying out vacuum suction from an aperture Ma of the 
mandrel M. 
The reinforcing member 42 is inserted inside of the main body 51. And, when 
the reinforcing member 42 arrives at a position where a distance from the 
folded line .beta. is equal to the radius r of the short cylindrical 
section 42a of the reinforcing member 42, it cannot advance any more (see 
FIG. 18). In this state, as shown in FIG. 20 and FIG. 21, the folded line 
.beta. is extended along the diametrical line of the reinforcing member 
42. At this time, the front surface of the front wall section 42b of the 
reinforcing member 42 contacts a bottom 51b. The cylindrical section 51a 
is formed by portion of the main body 51, which is directed to the opening 
side from a position where is separated from the folded section by a 
distance equal to the radius r of the reinforcing member 42. Moreover, the 
front portion of the main body 51 at the welding section 52, is projected 
outward in the radial direction of the member 42 to forms two ear sections 
51d, 51d. 
Next, a trowel H' is heated. As shown in FIG. 21, the trowel H' has the 
outer diameter almost the same as the outer diameter of the reinforcing 
member 42. And, the trowel H' has a concave-portion h, which has the inner 
diameter almost the same as the insert-aperture 51c at the tip surface, 
and whose depth is deeper than the projection height of the 
discharge-opening-portion 42c. The tip surface is pushed against the 
bottom 51b. The bottom 51b is welded to the front of the front wall 
section 42b of the reinforcing member 42. 
In addition, by folding at the base end, the ear portion 51d meets the 
cylindrical section 51a. After the ear section 51d is made to meet the 
cylindrical section 51a, trowels H, H shown in FIG. 24, may be pushed 
against the ear portion 51d. In this manner, the inner circumference side 
of the cylindrical section 51a, and the short cylindrical section 42a of 
the reinforcing member 42 are welded. At the same time, films, which are 
located at the most inner side in the four layers structure of the film F 
constituting the ear section 51d, are fixed to each other, so that the ear 
section 51d does not become bulky. 
In addition, this invention is not limited to the above-mentioned 
embodiment. For example, the front wall section 42b of the reinforcing 
member 42 is circular in the above-mentioned embodiment. However, it may 
be oval, square, rectangle, or a shape which is formed by cutting both 
sides of a circle by straight lines, as shown in FIG. 22. Moreover, though 
the short cylindrical section 42a is formed in the reinforcing member 42, 
it may not be formed. 
If two cartridge containers 40 and 40 are mounted on a jig 60 which is 
shown in FIG. 23, they can be used as a cartridge container of a double 
liquid mixed type. Namely, a nozzle section 62 which has a nozzle aperture 
61 is formed at the front section of the jig 60. On the other hand, screw 
apertures 63 and 63 which fix two discharge-opening-portions 42c, 42c to 
each other by means of screwing, are formed on the rear-surface section of 
the jig 60. Screw apertures 63, 63 are communicated with each other 
through a communication path 64. At the same time, those screw apertures 
63, 63 are communicated with the nozzle aperture 61. When the jig 60 is 
used, each of cartridge containers 40, 40 is screwed and fixed to the 
screw apertures 63, 63. A pipe-like nozzle (not illustrated), which has 
fins for mixing inside, is mounted on the nozzle portion 62. When 
contained contents are discharged from the cartridge containers 40, 40, 
each of contained contents passes through the communication path 64 and 
the nozzle aperture 61, mixed in the nozzle, and then discharged out. 
In manufacturing the cartridge container 10 of FIG. 6 and FIG. 7, as shown 
in FIG. 24, when the main body 11 and the reinforcing member 12 are welded 
by pushing them at their engagement portions by the trowels H, H, which 
are heated, if the inner diameter of the main body 11 is extremely greater 
than the outer diameter of the reinforcing member 12, wrinkles .alpha. are 
formed at a part of the main body 11 as shown in FIG. 24. Therefore, this 
part is not welded. Thus, there is a possibility that contents leak from 
the parts where the wrinkles .alpha. are formed. Conversely, if the inner 
diameter of the main body 11 is less than the outer diameter of the 
reinforcing member 12, insertion of the reinforcing member 12 to the main 
body 11 becomes hard. Thus, there arises a problem that the improvement in 
accuracy of the inner diameter of the main body 11 and the outer diameter 
of the reinforcing member 12, becomes necessary, and that manufacturing 
cost increases. 
Moreover, the whole of the main body 11 and the reinforcing member 12 are 
not welded only by pushing two trowels H, H from one direction. It is 
necessary to press trowels H, H, again from another direction which is 
perpendicular to the first direction of pressing. For this reason, there 
arises another problem that welding work takes time. 
In case a main body and a reinforcing member are welded by the 
manufacturing method of the cartridge container by the above-mentioned 
embodiment, a wrinkle is not generated on the main body which is formed of 
film, and the welding work becomes easy. 
An example in case the present invention is adapted to a coffee container, 
is shown in FIG. 25 and FIG. 26. A coffee container 70 has the following 
elements in FIG. 25 and FIG. 26. An intermediate barrel portion 71 is 
formed of plastic lamination film. An upper solid portion 72 is formed in 
one piece with one end of the intermediate barrel portion 71. A lower 
solid portion 73 is formed in one piece with another end of the 
intermediate barrel portion 71. An opening-portion 72a, provided on the 
upper solid portion 72, is sealed by a lid 74. A lid is screwed by forming 
a screw section on the external surface of the upper solid portion 72. 
As for the intermediate barrel portion 71, material which is formed by 
cutting plastic lamination film into a shape of rectangle, is used. The 
intermediate barrel portion 71 is formed in a cylindrical form in which 
both ends were opened, by joining the side ends of the material with each 
other so as to form a sealing shape of an envelope. The intermediate 
barrel portion 71 may be formed in a cylindrical form in which both ends 
are opened, by abutting side ends of the film against each other to bond 
each of inner surfaces of side ends of the film with each other. The end 
located at the bottom side of the intermediate barrel portion 71 made in 
this manner, is heat-sealed by usual heat seal means. 
In consideration of dampproofing capability, a gas cut-off capability and 
flexibility, polyethylene film with thickness of 50 microns, polyester 
film with thickness of 12 microns, aluminum foil with thickness of 9 
microns, and polyethylene film with thickness of 50 microns are desirably 
delaminated to form a plastic lamination film. Alternatively, polyethylene 
film with thickness of 50 microns, paper with thickness of 50 microns, 
aluminum foil with thickness of 9 microns, and the polyethylene film with 
thickness of 50 microns are laminated may be selected. 
Manufacturing method of the coffee container 70 will be explained with 
reference to FIG. 27. 
Since powder coffee enclosed in the coffee container 70 is apt to absorb 
humidity and the scent is apt to change, the dampproofing capability and 
the gas cut-off capability are required for the coffee container 70. 
Therefore, plastic lamination film which is rich in the dampproofing 
capability, the gas cut-off capability, and the flexibility, is selected 
as the intermediate barrel portion 71 which constitutes the coffee 
container 70. Moreover, material which is rich in the dampproofing 
capability and the gas cut-off capability, and the same material as the 
intermediate barrel portion 71, is selected for the upper solid portion 72 
and the lower solid portion 73. 
In FIG. 27, the intermediate barrel portion 71 which is formed of the 
plastic lamination film selected by taking into consideration the 
dampproofing capability, the gas cut-off capability and the flexibility, 
and one end of which is opened, is covered on a mandrel 80 which functions 
as a die core, from the upper side. And, the upper end portions of the 
intermediate barrel portion 71 and the mandrel 80 are covered with a sheet 
71a of the same material as the intermediate barrel portion 71. In this 
case, if the intermediate barrel portion 71 has a circular cross section, 
a circular mandrel corresponding to this will be used. On the other hand, 
if the intermediate barrel portion 71 has a rectangular cross-section, a 
rectangular mandrel corresponding to this will be used. 
Subsequently, the mandrel 80 coated with the intermediate barrel portion 
71, is inserted and mounted to an aperture 81a of a lower die 81 from the 
bottom. At this time, a molding space 81b having the same form as the 
upper formation portion 72 of the coffee container 70, is formed between 
the outer-circumference surface of the intermediate barrel portion 71 and 
the inner circumferential side of the aperture 81a. A middle portion 
higher than the lower die 81 of the mandrel 80 coated with the 
intermediate barrel portion 71, are held on the whole circumference 
thereof, by a lower side holding plate 82 and an upper side holding plate 
83, which are disposed with a predetermined interval. Thereby, the molding 
space 81a surrounded by the mandrel 80, the lower die 81 and the lower 
side holding plate 82, is formed. 
Next, the upper die 84 is installed to the tip portion of the mandrel 80 
coated with the intermediate barrel portion 71, in the state where a tip 
portion of the mandrel 80 is inserted in a hole 84a of the upper die 84. 
At this time, a molding space 84b having the same form as the lower solid 
portion 73 of the coffee-container 70, is formed between the upper 
surfaces of the outer-circumference surface of the intermediate barrel 
portion 71, the inside wall surface of the hole 84a, and a bottom control 
plate 83. A molding space 84a and a molding space 81b are communicated 
with each other by a runner 85 prepared in the die. 
When the setting of the intermediate barrel portion 71 to the upper die 84 
and the lower die 81 is completed, synthetic resin material like 
polyethylene resin is poured in the state where it is melting, by the 
insert injection molding means, into the molding space 84b from a gate 
mouth 86 which is formed in the upper die 84. At the same time, the molten 
synthetic resin material poured in the molding space 84b, is also 
introduced into the molding space 81b through the runner 85. Thereby, the 
upper solid portion 72 and the lower solid portion 73 are combined into 
one piece with the intermediate barrel portion 71, so that the coffee 
container 70 is manufactured. 
The bottom portion of the coffee container 70 thus manufactured, is covered 
with the same plastic lamination film as that of the barrel portion, 
whereby the seat 71a covers the bottom side of the intermediate barrel 
portion 71 in the manufacture process, as shown in FIG. 26. Therefore, by 
selecting, as plastic lamination film, film having an aluminum foil layer, 
dampproofing capability and gas cut-off capability are secured regardless 
of the quality of the material of composition resin material. 
Since the intermediate barrel portion 71 is flexible, when vacuum-packaging 
is performed to the coffee container 70 manufactured as mentioned above, 
it becomes possible to judge the vacuum degree by a change in a form of a 
trunk section. 
In addition, in the above-mentioned embodiment, since the bottom side of 
the intermediate barrel portion 71 is covered with the sheet 71a in the 
manufacture process, contained content and the lower solid portion 73 do 
not directly contact each other. The lower formation portion 73 may be 
exposed inside of a coffee container, without using sheet 71a, if 
composition resin material which constitutes the lower solid portion 73 
has dampproofing capability and gas cut-off capability. 
An example in case the present invention is applied to a cartridge 
container for discharge guns is shown in FIG. 28. A cartridge container 90 
for discharge guns has the following constitution elements. A main body 91 
is formed of plastic lamination film in the shape of a pipe. An upper 
solid portion 92 is formed on the upper end of main body 91 in one piece, 
and has a mouth section 92a. A ring-like lower solid portion 93 is formed 
on the lower end of the main body 91 in one piece. A bottom lid 94 can be 
inserted in the ring-like lower solid portion 93. 
A manufacturing method of the cartridge container 90 for discharge guns 
will be explained on the basis of FIG. 29. Plastic lamination film of 
material which does not react with content filled up and sealing material, 
is used for the main body 91 of the cartridge container 90 for discharge 
guns. After plastic lamination film is formed into a cylinder form whose 
both ends are opened, it is mounted on a mandrel 100 which functions as a 
die core. 
Next, the mandrel 100 covered with the main body 91 formed in the cylinder 
form, is inserted into a blank 101a of a die 101. At this time, a molding 
space 100a having the same form as that of the lower solid portion 93, is 
formed between the outer circumference surface of the lower end of the 
main body 91 and the inner circumference side of the lower end of the 
blank 101a. 
Next, a spacer 102 is mounted from the upper side of the die 101. At this 
time, a molding space 100b having the same form as that of the upper solid 
portion 92, is formed between the outer circumference surface of the upper 
end of the main body 91, the external surface of the upper end of the 
mandrel 100, the inside wall surface of the upper end of the blank 101a 
and the outer-circumference surface of the spacer 102. The molding space 
100a and the molding space 100b are communicated to each other by a runner 
102 formed in the die 100. 
Composition resin material like polyethylene resin is poured by insert 
injection molding means, in molten state, into the molding space 100a and 
the molding space 100b through the runner 102 from a gate mouth 103 formed 
in the die 100, after setting the main body 91 to the die 100. Thereby, 
the upper solid portion 92 and the lower solid portion 93 are formed in 
one piece on the main body 91 which forms an intermediate barrel portion. 
In this manner, the cartridge container 90 for discharge guns having an 
open bottom end, is manufactured. 
Filling of contents, such as adhesives, into the cartridge 90 for discharge 
guns manufactured as mentioned above, is performed as follows. The 
cartridge container 90 for discharge guns is mounted on a filling-up 
machine by holding the mouth section 92a of the upper solid portion 92 in 
the state where the upper solid portion 92 is turned down. The contents 
discharged from the filling-up machine, are filled into the inside of the 
main body 91 from the opening portion of the lower solid portion 93. The 
opening portion of the lower solid portion 93 is closed by inserting the 
bottom lid 94 to the opening of the lower solid portion 93 of the main 
body 91 after filling the contents of predetermined amount to the main 
body 91. This bottom lid 94 functions also as a press plate, which is 
pressed against an operation section of a discharge gun. Therefore, an 
installation jig for the cartridge container 90 needs no press plate for 
pressing the end of the cartridge container. In addition, the air in the 
internal space of the main body 91 is attracted by vacuum-attracting from 
the mouth section 92a of the upper solid section 92 after inserting the 
bottom lid 94 into the opening end of the lower solid portion 93 of the 
main body 91. After this, the contents discharged from a filling-up 
machine, are filled into the inside of the main body 91 from the mouth 
section 92a of the upper solid portion 92. Thereby, the air can be 
prevented from mixing into the contents in the cartridge container 90. 
At the time of using the cartridge container 90 for discharge guns, as 
shown in FIG. 30, the nozzle N is mounted on the mouth section 92a, and, 
by pressing the bottom lid 94 or the lower solid portion 93 in the axial 
direction, the main body 91 is compressed in the axial direction. And, the 
contained content in the main body 91 is discharged from the nozzle N. 
When all contents in the cartridge container 90 have been discharged, the 
cartridge container 90 will have become a small lump as indicated by a 
solid line shown in FIG. 30. 
The cartridge container 90 of FIG. 28 is a cartridge container for single 
liquid type contents, whose main body 91 is formed into a cylinder shape. 
Cartridge containers 90A, 90B shown in FIG. 31, are containers for filling 
separately two or more kinds of contents, which are to be mixed upon 
usage, such as double liquid type adhesive etc.. 
These cartridge containers 90A, 90B are constructed such that each of main 
bodies 91A, 91B, upper solid portions 92A, 92B, and lower solid portions 
93A, 93B is formed in a half cylinder shape, respectively. On the whole, 
each cartridge containers 90A, 90B is constituted in a half-cylinder 
shape. And, at the time of usage, a cylinder type container on the whole 
is formed, by bonding each bowstring side of the cartridge containers 90A, 
90B with each other. 
In addition, a container which has the same constitution as the cartridge 
container 90 for discharge guns, may be used also as a drink container or 
a detergent container, by selecting material, shape or size of a main 
body. 
An example in case the present invention is applied to a liquid container, 
is shown in FIG. 32. 
In FIG. 32, a pouring opening 112 having such a size that covers most of 
upper end surface of a main body 111 of a liquid container 110, is 
attached on the upper end side of the main body 111 by welding means or 
adhesion means. 
Laminated film, which constitutes the main body 111 of the liquid container 
110, has a four layer structure that is the same as that shown in FIG. 8. 
First layer is polyester film (12 micro). Second layer is aluminum foil (9 
micro). Third layer is extended nylon film (15 micro). Fourth layer is 
polyethylene film (150 micro). And, the laminated film has such a 
structure that it has flexibility and gas barrier capability. 
Manufacturing method of liquid container 110 is shown in FIG. 33 or FIG. 
38. Firstly, in FIG. 33, laminated film is cut and formed into a 
rectangular shape, so that one pair of surface sections 111A, 111A are 
prepared. One pair of gusset portions 111B, 111B in which central part in 
width direction is folded, are prepared by cutting laminated film and 
forming into a rectangular shape. In this case, it is formed so that the 
width of the surface sections 111A, 111A, and the width of the gusset 
portions 111B, 111B become almost equal, so that cross-sectional form of 
the liquid container 110 to be manufactured, substantially becomes a 
square. And, between the overlapped surface sections 111A and 111A, the 
gusset-portions 111B, 111B are arranged such that the side ends thereof 
match the side ends of the surface sections 111A, 111A. Subsequently, as 
shown in FIG. 34, the gusset type liquid container 110 is formed by 
heat-sealing each side portions of the surface sections 111A, 111A and the 
gusset-portions 111B, 111B through ordinary heat seal means. 
Next, in FIG. 35, V-shaped-heat-sealed-portions b, b are formed at one end 
of the surface section 111A of the gusset type liquid container 110 so as 
to spread at angle of about 45 degrees on either side with respect to a 
position Y, as standard position, which is separated from an end surface 
on an axis x in the longitudinal direction of the liquid container 110. 
And, cross-heat-sealed-portions c, c are formed. The 
cross-heat-sealed-portions c, c cross in the direction which is 
perpendicular to the axis x of the longitudinal direction of the liquid 
container 110. Heat seal procedure of FIG. 33 and FIG. 34 may be performed 
concurrently. 
Subsequently, the portions located more end than the 
V-shaped-heat-sealed-portions b, b and the cross-heat-sealed-portions c, c 
of the liquid container 110, are cut off in FIG. 36. Thereby, a 
trapezoid-heat-sealed-portion 111C is formed at the end of the liquid 
container 110. Subsequently, a zone including the heat-sealed-portion c of 
the central part of the trapezoid-heat-sealed-portion 111C is cut in FIG. 
37. Thereby, an opening-portion 111D is formed. The end of the liquid 
container 110 which is formed in this manner, is shown in FIG. 38. 
Next, the pouring opening 112 is arranged at the opening-portion 111D of 
the liquid container 110. As shown in FIG. 32, the pouring opening 112 is 
installed to the opening-portion 111D of the liquid container 110 by 
welding means or adhesion means. 
Following explanation is explanation about an embodiment of an installation 
jig of the present invention, to install a cartridge container for 
discharge guns. 
An installation jig 120 shown in FIG. 39 is a jig for the cartridge 
container 2 of FIG. 2, the cartridge container 10 of FIG. 6, the cartridge 
containers 30, 30' of FIGS. 10 to 12, or the cartridge container 40 of 
FIG. 13. 
The installation jig 120 has a jig main body 121 of hollow-like cylinder, 
and a piston 122 inserted inside of the jig main body 121 slidably in FIG. 
39. 
In order to make the rigidity high, the jig main body 121 is formed by 
metal, hard resin, etc.. It is desirable to form it from resin from 
viewpoint of reducing weight. In this case, resin, such as polyethylene, 
is used, for example. Moreover, in this embodiment, a cross-sectional form 
of the jig main body 121 is circular. However, in case that the 
cross-sectional form of a support section of a discharge gun used or a 
cartridge container used is not circular, the cross-sectional form of the 
jig main body 121 may be formed in a shape corresponding to it. Likewise, 
the full length of the jig main body 121 is formed. 
On the other hand, the piston 122 is formed from metal, hard resin, etc.. 
However, from view point of reducing weight, the piston 122 may be 
preferably formed from the same resin as the jig main body 121. 
Corresponding to cross-sectional form of the jig main body 121, the piston 
122 is formed in a board-like shape having a circular cross-section. Of 
course, in case that the jig main body 121 is not circular, the piston 122 
may be formed in the shape corresponded to it. 
Outer diameter of the piston 122 is slightly larger than the inner diameter 
of the jig main body 121. The piston 122 is inserted slidably in the jig 
main body 121. An escape section 122a, whose outer diameter becomes 
gradually smaller toward a center from both ends, is formed on the 
outer-circumference section of the piston 122. Thus, only both ends of the 
piston 122 contact the inner circumference surface of the jig main body 
121. Friction resistance, which acts between the piston 122 and the jig 
main body 121, does not become excessive by keeping the central part of 
the outer-circumference section in a non-contacting state. In addition, 
the piston 122 is stopped at fixed position, due to friction resistance 
between the piston 122 and the jig main body 121. 
Moreover, ring-like projection sections 122b, 122b are formed on the 
peripheral portion of the both end surfaces of the piston 122. The height 
of the projection sections 122b, 122b becomes gradually higher it extends 
outwardly in the radial-direction of the piston 122. In addition, in this 
embodiment, the height of the projection section 122b becomes higher at a 
constant rate. However, the increasing rate of height may become higher 
gradually. Alternatively, it may become lower gradually, conversely. 
In case that the cartridge container 2 shown in FIG. 2, for example, is 
mounted onto the support section 3b of the discharge gun 3 of FIG. 4 by 
the installation jig 120 of the above-mentioned constitution, one end of 
the cartridge container 2 is excised and opened as shown in FIG. 40. A 
nozzle 123 is mounted in the opened end of the cartridge container 2. And, 
the cartridge container 2 onto which the nozzle 123 is mounted, is 
inserted into the jig main body 121. At this time, the end of the nozzle 
123 is fixed to the end of the jig main body 121. 
The installation jig 120 into which the cartridge container 2 is inserted 
as mentioned above, is installed on the support section 3b in a state 
where the nozzle 123 is fixed to the end board 3f of the discharge gun 3. 
After this, when the piston 122 moves forward by being pushed by the press 
plate 3e of the discharge gun 3, the contents filled in the cartridge 
container 2 are discharged from the nozzle 123. 
In addition, the piston 122 is retreated and is extracted from the jig main 
body 121, after discharging all contents from the cartridge container 2. 
Thereafter, the cartridge container 2 is removed from the discharge gun 3 
with the installation jig 123. And, used cartridge container 2 is 
discarded. And, new cartridge container 2 is installed to the installation 
jig 120. In this case, the piston 122 is located on a side opposite to an 
original position. However, the piston 122 is pushed back to the original 
position by inserting new cartridge container 2 from the opposite side 
with respect to the jig main body 100. Therefore, no special operation to 
return the piston 122 to the original position is necessary. 
The circumference of the cartridge container 2 is restrained by the jig 
main body 121 during usage of the cartridge container 2. Therefore, the 
part of the cartridge container 2 is prevented from being torn. 
Moreover, while the contents are discharged, the cartridge container 2 is 
crushed gradually from the side end of the piston 122. At this time, since 
that the ring like projection section 122b forms a recessed space to 
receive the tail end of the cartridge container 2, the cartridge container 
2 is reliably folded up in shape of an accordion. Especially, the 
projection section 122b is expanded gradually outward, in this embodiment. 
Thus, the cartridge container 2 is very reliably folded up. Therefore, the 
cartridge container 2 after usage becomes a very small lump. Moreover, the 
contents of the cartridge container 2 are almost used up, which is 
efficient. 
Moreover, a front projection section 122b is expanded obliquely and 
forwardly to form an obtuse angle. Thus, an angle between the projection 
section 122b and the inner surface of the jig main body 121 corresponding 
to the cartridge container 2. Thus, the tail end of the cartridge 
container 2 moves into the center of the recess formed by the projection 
section 122b along the inclined surface of the projection section 122b. 
Therefore, a part of the film of the cartridge container 2 is not intruded 
or pinched between the piston 122 and the inner surface of the jig main 
body 121. Especially, in this embodiment, the escape portion 122 is formed 
at the outer circumference surface of the piston 122, and both ends of the 
piston 122 certainly contact the inner sirface of the jig main body 121. 
Thus, intrusion of the film is much more certainly prevented. 
Furthermore, the press-plate 3e enters the inside of the jig main body 121 
during usage of the discharge gun 3, as clearly shown in FIG. 40. Thus, 
even when the upper and lower sides of the discharge-gun 3 become reverse 
temporarily, the installation jig 120 does not drop out of the discharge 
gun 3. Therefore, it is certainly prevented that the cartridge container 3 
inserted in the jig main body 121, drops out. 
The cartridge container 10 of FIG. 6, the cartridge containers 30, 30' of 
FIGS. 10 to 12, or the cartridge container 40 of FIG. 13, is mounted to 
the installation jig 120 as follows. 
Namely, the reinforcing member in cartridge containers 10, 30, 30', is 
mounted at one end of the main body which has pliability. A nozzle section 
is attached in this reinforcing member, respectively. Therefore, each of 
cartridge containers 10, 30, 30', or 40 is inserted in the installing 
member 120 from its tip side (discharging side), after attaching the 
nozzle to the reinforcing member, respectively. And, it is installed to 
the discharge gun 3 in the same manner as the above-mentioned embodiment. 
Another embodiment of an installation jig is shown in FIG. 41. In FIG. 41, 
a jig main body 131 of an installation jig 130 is formed in a shape of 
hollow cylinder from high rigidity material as in the case of the 
installation jig 120 of FIG. 39. A plurality of grooves are formed on the 
inner circumference of the front end of the jig main body 131 at regular 
intervals, which extends in the axial direction from the front end surface 
of the jig main body 131. 
The cartridge container 10 (same as the cartridge containers 30, 30' of 
FIGS. 10 to 12, and the cartridge container 40 of FIG. 13) of FIG. 6 is 
inserted from the front end side or the back end side of the installation 
jig 130, into the inner side, and is installed. And, the cartridge 
container 10 is installed to the discharge gun 3 of FIG. 4 with the 
installation jig 130 in the same manner as the installation jig 120 of 
FIG. 39. And, by advancing of the piston 132, the main body 11 is 
compressed as shown in FIG. 42. And, it becomes a small lump when the 
discharging of contained content finishes. At this time, a space S formed 
between the back end of the main body 11, and the piston 132, is 
communicated by grooves 131a with the atmosphere. And, the cartridge 
container 10 which has finished the discharging of the contained content, 
is taken out from the front side of the installation jig 130, and is 
exchanged. 
When there are no grooves, the space S formed between the back end of the 
main body 11 and the piston 132, forms a seal. Thus, the nozzle 13 is 
pulled, and when the compressed cartridge container 10 is taken out of the 
installation jig 130, it becomes hard to separate the back end of the main 
body 11 from the piston 132. There is a possibility that the main body 11 
compressed may be extended. 
However, air is supplied to the space S by the grooves 131a, according to 
the installation jig 130, when extraction of the cartridge container 10 is 
performed. Thus, it is easy to separate the back end of the main body 11 
and the piston 132. Moreover, contact area of the outer-circumference 
surface of the compressed main body 11 and the inner circumference surface 
of the installation jig 130 is reduced by formation of the grooves 131a. 
Thus, it becomes easy to take out the cartridge container 10 as a small 
lump. 
FIG. 43 shows an installation jig for the cartridge container 90 Of FIG. 
28, or the cartridge containers 90A, 90B of FIG. 31. 
An installation jig 140 has almost the same constitution as the 
installation jig 130 of FIG. 42. However, the lower solid portion 93 or 
the bottom lid 94 attached on the lower solid portion 93 of the cartridge 
container 90 (as in the case of the cartridge containers 90A, 90B), plays 
the same function as the piston 132 of the installation jig 130 of FIG. 
42. Therefore, the piston is not prepared in the installation jig 130. 
As shown in FIG. 43, the cartridge container 90 is installed to the 
installation jig 140. And, as shown in FIG. 44, the cartridge container 90 
whose main body section 91 is compressed, and became a small lump when the 
discharging of contents is finished, is taken out from the front end side 
of the installation jig 130, and is exchanged. At this time, contact area 
of the outer circumference surface of the compressed main body 91 and the 
inner circumference surface of the installation jig 140, is reduced by 
formation of grooves 141a. For this reason, it becomes easy to take out 
the cartridge container 90 as a small lump. 
The side surfaces on the bowstring side of the half-cylinder type 
cartridge-containers 90A, 90B of FIG. 31, are matched to each other so as 
to be formed into a cylinder shape, and installed to the installation jig 
140 in the same manner as the case of the cartridge container 90. 
Another embodiment of an installation jig is further shown in FIG. 45. A 
plurality of grooves 151a are formed at the front end of a jig main body 
151 of an installation jig 150 at regular intervals, which extend in an 
axial direction from the front end surface of the jig main body 151 in the 
same manner as the case of the installation jig 130 of FIG. 41 or the 
installation jig 140 of FIG. 43. Further, beveling section 151b is formed 
inside of the tip section of the jig main body 151. 
The jig main body 151 is used in the same manner as the installation jigs 
130 and 140. However, when each cartridge container is inserted into the 
jig main body 151 from the front or back portion, the cartridge container 
can be smoothly inserted into the jig main body 151 by the inclination 
surface of the beveling section 151b. 
Each of above-mentioned explanations is an explanation about a case that a 
cartridge container is compressed by a press plate of a discharge gun. 
However, the cartridge container can be compressed by compressed air.