JP2002219391A - Gun for extrusion container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gun for an extrusion container capable of being used in the separating disposal treatment of a container main body. SOLUTION: A cylindrical barrier member 2 having flexibility is housed in the container main body 1 in a close contact state and connected to a lid 3 on its leading end side, and the base end of the barrier member 2 is sealed. Content having flowability is housed in the barrier member 2. The volume of the barrier member 2 is reduced by pressing the sealed base end of the barrier member to discharge the content from a discharge port. After the content is fully used, the outer periphery of the container main body 1 is dashed against the locking part 110 of the gun 100 for the extrusion container to extrude the lid 3 and the barrier member 2 reduced in volume from the container min body 1 to easily perform the separating treatment of them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extrusion container gun for extruding fluid contents from an extrusion container.

[0002]

2. Description of the Related Art Conventionally, an extruded container has been used as a container for accommodating a fluid content such as a caulking agent, a sealing agent, a medicine, a food, etc. and making it easy to discharge. A conventional extrusion container includes a cylindrical container main body for storing contents having fluidity, a lid provided on a distal end side of the container main body, and a pressing portion provided on a base end side of the container main body. In addition, a discharge port such as a nozzle is provided in the lid portion, and the contents in the container body are discharged from the discharge port by pressing the pressing portion to apply pressure in the distal direction. As one of the means for discharging the contents in the container body, the extruding container is set in the extruding container gun, and the pushing portion is pressed while the container body is locked by the extruding container gun to apply pressure in the distal direction. In some cases, the contents in the container main body are discharged from the discharge port by adding.

[0003]

The conventional gun for an extruded container is constructed so as to be adapted to an ordinary container main body, and is not useful for sorting the container main body. The present invention
An object of the present invention is to provide a gun for an extruded container that can be used for a separation process when the container body is discarded.

[0004]

Means for Solving the Problems and Effects of the Invention A gun for an extrusion container according to the present invention comprises a cylindrical container main body 1, a lid portion 3 provided on the distal end side of the cylindrical container main body 1, and a cylindrical container main body 1. Member 2 and cylindrical container body 1 formed on the inner wall of the container
And a pressing portion 4 provided on the base end side of the cylindrical container body 1.
Is a gun for an extrusion container used for an extrusion container capable of separating a lid portion 3, a barrier member 2 and a pressing portion 4 from the container, and a lid after the contents have been taken out of the container holder 106 for accommodating the extrusion container. It has a locking portion capable of locking the outer wall of the cylindrical container main body with a gap where the portion 3 and the barrier member 2 come out. In this case, after use, the outer wall of the cylindrical container body 1 is locked by the locking portion,
The lid 3 and the barrier member 2 can be extruded using an extruder container gun, which is convenient for separating and discarding the outer wall of the container body 1 from the lid 3 and the barrier member 2.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of an extrusion container used in one embodiment of the present invention, FIG. 2 is a sectional view of the same, FIG. 3 is a partially enlarged view of a region indicated by B in FIG. 4 is a partially enlarged view of a region indicated by C in FIG. 2, and FIG. 5 is a perspective view of a main part in a discarded state.

An extrusion container used in one embodiment of the present invention comprises a cylindrical container body 1, a flexible cylindrical barrier member 2 housed in the container body 1, and a tip of the container body 1. And a pressing portion 4 provided on the base end side of the container body 1. Contents such as a caulking agent and a sealing agent are contained in the barrier member 2, and the contents are applied to the lid 3 by a force applied to the pressing portion 4.
Is discharged from the discharge port 31 provided in the nozzle.

The container body 1 is made of a material having rigidity such as paper, synthetic resin, metal, etc., which is not deformed by the discharge force for discharging the contents. For example, as shown in FIG. 3, a paper tube in which the paper tube constituting sheets 11, 11 such as paperboard are spirally wound is used, but a paper tube having a flat winding may be used. The paper tube constituting sheet 11 constituting the paper tube may be 100% paper, or may be a composite material of paper and another material such as synthetic resin or metal. The material of the paper tube constituting sheet may be a combination of the above various materials, and the thickness of each layer may be changed as appropriate. The shape of the container body 1 is
Although a circular cylinder having a circular cross section is illustrated, a rectangular cylinder having a polygonal cross section may be used. Since this container pushes out the contents by using the container body 1 as a cylinder and the pressing part 4 as a piston, the moving section of the pressing part 4 keeps the inner diameter of the container body 1 constant. Has a constant inner diameter over its entire length.

Next, the barrier member 2 is disposed along the inner peripheral surface of the container body 1 and is made of a flexible material such as a soft synthetic resin or a laminate of a synthetic resin film and a metal foil. Have been. That is, when the barrier member 2 is moved to the front end side of the container body 1 by pressing the pressing portion 4 as a piston without storing the contents and exposing the content to the outside, the barrier member 2 is deformed by the pressing force against the pressing portion 4. It has flexibility. As shown in FIG. 5, the volume of the barrier member 2 is reduced as the content is extruded and reduced. This decrease is due to the fact that the material itself does not substantially shrink like synthetic resin, etc., but instead of being regularly or irregularly folded like a bellows shape, the volume decreases, and the stretched rubber shrinks. This also includes the case where the material itself contracts.

The barrier member 2 can be manufactured separately from the container main body 1 and the manufactured barrier member 2 can be inserted into the container main body 1, but can be manufactured simultaneously with or before the container main body 1. . Specifically, a sheet (hereinafter, referred to as a barrier sheet 2a) constituting the barrier member 2 is wound in a tubular shape, and the sheet edges 2b extending as necessary are bonded to each other to form a cylindrical barrier member. The container body 1 in which the barrier member 2 is arranged on the inner side wall by forming the core sheet 2, winding the paper tube constituting sheets 11 and 11 around the outer periphery thereof, and adhering the adjacent sheet edge 2b as necessary. Get. Here, the outer wall of the container body 1 is formed by the paper tube constituting sheet 11. At that time, the barrier sheet 2a and the paper core constituting sheets 11, 11 are not adhered in principle. Even if they are bonded, they are limited to partial bonding or temporary bonding, such as bonding both ends of the barrier member 2 and the container body 1 to each other, so that the volume of the barrier member 2 alone can be reduced and fixed. As described above, when the barrier sheet 2a is manufactured simultaneously with the container body 1, the barrier sheet 2a can be formed by spiral winding or flat winding, and the most efficient winding method is the same as the winding method of the container body 1. For example, the barrier sheet 2a is wound around a mandrel for manufacturing a paper tube, and the paper tube forming sheets 11, 11 are wound thereon to form the outer wall of the container body 1, thereby enabling continuous manufacturing. Become. When the barrier member 2 is completed first, the paper tube forming sheets 11 and 11 are wound around the completed barrier member 2. In each of the above methods, when the barrier member 2 is not self-supporting, the barrier member 2 is supported from the inside by a core such as a mandrel, and the core is supported by the paper tube while the barrier member 2 is being manufactured or completed. The constituent sheets 11, 11 may be wound. In this way, by winding the paper tube forming sheets 11 around the outer periphery of the formed or completed cylindrical barrier member 2 to form the cylindrical container body 1, the outer peripheral surface of the barrier member 2 and the container are formed. The inner peripheral surface with the main body 1 is in close contact (close contact) over substantially the entire length (in particular, over the entire length of the cylindrical outer peripheral surface of the barrier member 2), so that no space is opened between the two 2. Thus, the barrier member 2 having substantially the same inner volume as the inner volume of the container body 1 can be stably mass-produced.

The bottom of the barrier member 2 can be joined to the pressing portion 4 so that the pressing portion 4 can be used as the bottom of the barrier member 2. In this example, the bottom end of the barrier member 2 is sealed. It has been implemented with its own bottom. More specifically, as shown in FIG.
Is bent in the radial direction, and a sheet-shaped bottom closing body 22 is positioned inside (in the front end side) in a state where the bottom closing body 22 is folded back as necessary.

Next, the bent bottom end 21 and the bottom closure 2
2 are bonded by heat sealing, an adhesive or the like.
At this time, if the operation is performed with the edge of the bottom closing body 22 folded, the folded edge and the bent bottom end 2 are used.
1 and adhere. The bottom closure 22 is provided with the barrier member 2.
It may be made of the same kind of material as described above, but may have a rigidity that is not deformed by the above-mentioned pressing force, provided that it can be bonded to the barrier member 2 by heat sealing or an adhesive. In this example, the bottom closing body 22 is used, but the bottom may be closed by bonding the bottom ends 21 of the barrier members 2 to each other. In addition, by using the bottom sealing body 22, etc.
By making the bottom of the barrier member 2 planar, it is advantageous in that the pressing force from the pressing portion 4 can be received uniformly by the entire bottom of the barrier member 2. Further, the bottom closing body 22 may be arranged outside (the base end side) of the barrier member 2.

The pressing portion 4 pushes out the contents by moving in the container body 1 under the pressing force for pushing out the contents, and has a rigidity which is not deformed by the pressing force. Is preferred. In this example, the inner pressing portion 41 such as a relatively thin pad and the outer pressing portion 42 such as a plunger are used, but they may be formed of a single member, or may be formed of three or more members. Well, both 4
1, 42 may be bonded. The outer pressing portion 42 is for receiving a force in contact with a pressing device such as a gun for an extrusion container, and the inner pressing portion 41 is for the barrier member 2.
And transmits the pressing force to the barrier member 2. It is preferable that the outer shape of the pressing portion 4 be substantially equal to the inner diameter of the container body 1. Most preferably, the inner pressing portion 41 is made of a material that is more flexible than the outer pressing portion 42, and the adhesion between the inner pressing portion 41 and the container body 1 is higher than the adhesion between the outer pressing portion 42 and the container body 1. Is preferred. In particular, at the time of pushing out the contents, the contents inside the barrier member 2 are lost, and a part of the emptied barrier member 2 is formed by the outer peripheral portion of the pressing portion 4 and the inner peripheral surface of the container body 1 From outside (proximal side)
However, the protrusion may be effectively prevented by increasing the adhesion between the inner pressing portion 41 and the container body 1.

The pressing portion 4 (or only the inner pressing portion 41) and the bottom of the barrier member 2 may be connected by bonding or the like. Further, the outer pressing portion 42 is provided with a cylindrical portion (outer peripheral cylindrical portion) extending in the axial direction (preferably, the proximal end direction) from the outer periphery of the outer pressing portion 42 so as to improve the straightness. Is preferred. Next, the lid 3 is provided at the tip of the container body 1 and covers the container body 1, and the discharge port 31 provided in the lid 3 is provided.
Is discharged from the container. In this example, a nozzle 32 is attached to the discharge port 31, and the contents coming out of the discharge port 31 are discharged from the discharge port 33 at the nozzle tip through the nozzle 32.

The nozzle 32 is threadedly attached to a screw thread 31a provided at the discharge port 31 of the lid 3 and a screw thread (not shown) provided at the inner periphery of the base end of the nozzle 32. However, a mounting method other than the screw may be used, the nozzle 32 and the cover 3 may be integrated, or in some cases, the nozzle 32 may not be used.

The lid 3 is made of a material which is not deformed by the above-mentioned pressing force, such as metal or synthetic resin, and is fixed to the tip of the container body 1. Also, this lid 3 is
It is connected to the tip of the barrier member 2, and the contents in the barrier member 2 are discharged to the outside from the discharge port 31 of the lid 2.
Specifically, the outer periphery of the lid 3 and the inner periphery of the container body 1 are fitted together with the barrier member 2 sandwiched between the front end side of the barrier member 2 and the lid 3. In this example, as shown in FIG. 3, an outer peripheral cylindrical portion 34 extending in the axial direction is provided on the outer periphery of the lid portion 3 in order to surely perform the bonding and the fitting. The inner surface is adhered and fitted into the container body 1. The outer diameter of the lid portion 3 (the outer diameter of the outer peripheral cylindrical portion 34) is substantially equal to the inner diameter of the container body 1,
In some cases, the outer diameter of the lid 3 may be made larger than the inner diameter of the container body 1 so as to be forcibly fitted.

The discharge port 31 is, as shown in FIG.
It is closed by a closing body 35 provided on the inside (base end side). It is preferable that the closing member 35 has a barrier property equivalent to that of the barrier member 2 and does not leak the contents to the outside.

The inner peripheral surface of the container body 1 and the barrier member 2
It is sufficient that the barrier member 2 and the container body 1 can be separated from each other as the pressing portion 4 advances, but the two may be fixed. Specifically, partial adhesion, temporary adhesion, adhesion, and the like can be exemplified, and the shape of the adhesion and adhesion can be an irregular shape such as a polka dot, a line, an amoeboid, or a cloud.

When the pressing portion 4 is advanced until the contents are almost completely used, the barrier member 2 is deformed into a bellows shape or the like as shown in FIG. And the contents are gone,
After the discharge is stopped, the extrusion container of the present application is removed from the extrusion device, and the pressing unit 4 is pushed forward to advance.
The lid 3 is removed from the container body 1 together with the barrier member 2,
It is taken out in the state shown in FIG. Therefore, the fixing between the lid 3 and the container body 1 is strong enough not to be released by the pressing force applied during the discharge of the contents, but to such a degree that it is released by the pressing force applied after the discharge of the contents. Fixed.

The fixing strength may be determined only by the fitting force between the lid 3 and the container body 1, or may be combined with the bonding force. For example, the tip of the barrier member 2 and the lid 3 are bonded to each other, and the tip of the barrier member 2 and the container body 1 are partially bonded. , Tip of barrier member 2 and container body 1
It can be carried out as having a weaker bond with the adhesive. Alternatively, the lid 3 and the container body 1 may be fixed during use by a detachable fixing member such as a pin, and the fixing member may be removed when use is completed.

However, if the extrusion container gun is provided with a fixing means such as a projecting portion for fixing the front ends of both the lid 3 and the container body 1, the pressing force is received by the fixing means. Therefore, the fitting force between the lid portion 3 and the container body 1 needs to be small enough to prevent detachment during transportation or the like. Further, it is also effective that the lid 3 can be slid slightly following the expansion and contraction of the contents due to changes in the temperature of the storage environment. Specifically, the fitting portion of the cover 3 (in this example, between the outer cylindrical portion 34 of the cover 3 and the barrier member 2) increases the slipperiness of grease and the like, and at the same time, the barrier properties (airtightness and liquid). Dense)
It is preferable to intervene with an auxiliary agent such as a semi-liquid to improve the viscosity.

In any case, when the lid 3 is detached from the container body 1, the lid 2 and the barrier member 2 are connected (fixed) in a state where the connection between the lid 3 and the barrier member 2 is not released. Even when a small amount of content that cannot be discharged remains, the lid 3 is kept in a state where the remaining content is not taken out.
And the barrier member 2 can be separated from the container body 1. Note that the pressing portion 4 can also be pushed out to the tip end side of the container body 1.

Since the separated lid 3 and barrier member 2 are small in volume, the bulk of the waste can be reduced. Further, the container body 1 does not need to be reused, and when it is discarded, when it is made of a paper tube, it can be crushed relatively easily, and the bulk of the waste can be reduced.

The pressing portion 4 can also be reused.
The entire pressing portion 4 can be discarded together with the barrier member 2, and the inner pressing portion 41 such as a relatively thin pad of the pressing portion 4 is discarded together with the barrier member 2, and only the outer pressing portion 42 such as a plunger is discarded. It may be reused.

In particular, in this type of conventional extrusion container, the lid 3 and the container body 1 cannot be separated from each other, and if the container is forcibly separated, the contents remaining in the container are exposed to the outside. Since the container body 1 in the state has to be discarded in the same shape or in a state where only a part thereof is dented, it is difficult to reduce the bulk (volume) of the waste, or the container body 1 is reused. However, in the container main body 1 used in the present invention, the connection between the lid 3 and the barrier member 2 is maintained so that the remaining contents which have not been used up are not taken out. The container body 1 can be discarded with its bulk reduced, or can be reused as it is.

Next, the configuration of an extrusion container gun according to an embodiment of the present invention for handling the container body 1 will be described with reference to FIG. The extrusion container gun 100 shown in FIG. 6 includes a handle 101, an operation lever 102, a piston rod 103, a piston unit 104, a piston rod driving unit 105, and a container holder 106.

Further, the handle 101 is connected to the operation lever 100.
The operation lever 102 is provided with a pin 108 for transmitting its rotational operation as power of a piston rod driving unit 105.
The container holder 106 includes a backing plate 109 for locking the container body 1 pushed by the piston portion 104 when pushing out the contents, and a disposal piston portion 104.
Locking portion 1 for locking the container body 1 pressed by the
10 is provided. The locking portion 110 is formed by a step smaller than the thickness of the outer wall of the container body 1 (the portion around which the paper tube forming sheet 11 is wound).

To extrude the contents of the container body 1 using the extrusion container gun 100, first, the container holder 106
Before attaching the container body 1 to the container body, the closing body 35 is broken and the nozzle 32 is attached to the container body 1.

When the container body 1 is mounted on the container holder 106, the piston rod driving section 105 is operated to lower the piston rod 103. The container body 1 is stored in the container holder 106, and the handle 101 and the operation lever 10
By repeatedly gripping 2, the power is repeatedly transmitted to the piston rod driving unit 105, and the piston rod 103 advances toward the contact plate 109. The piston portion 104 abuts against the plunger (pressing portion 4), and the lid portion 3
If it hits 09, the mounting is completed.

Further, a handle 101 and an operation lever 102
By repeatedly gripping, the piston rod 103 is repeatedly extended forward as shown in FIG.
4 toward the backing plate 109, and the piston 104
The pressing portion 4 is pressed by the button. When the pressing portion 4 is pressed and moved forward, the internal pressure is applied to the content and the content is discharged, and the barrier member 2 is peeled off from the inner peripheral surface of the container body 1 from a position near the pressing portion 4 and is surrounded by the barrier member 2. The volume of the region in which it is located decreases.

The piston rod 103 is further extended forward, and the pressing portion 4 is further advanced by the piston portion 104.
When the contents are used up, the barrier member 2 is deformed into a bellows shape or the like in the container body 1 as shown in FIG.

After the contents have been used up, the piston rod driving unit 105 is operated to lower the piston rod 103 backward. Then, as shown in FIG.
Re-attach. That is, the outer wall of the container main body 1 made of the paper tube constituting sheet 11 is mounted so as to abut against the locking portion 110. When mounted in this manner, the lid 3 and the backing plate 10
9 is formed.

The outer wall of the container body 1 is brought into contact with the locking portion 110, and the grip 101 and the operation lever 102 are repeatedly gripped.
Is repeatedly advanced to push out the barrier member 2 together with the lid 3. FIG. 9 shows a state in which the lid 3 is pushed out halfway, but the piston 3 is further advanced so that the lid 3 is pushed out until it hits the backing plate 109. Since the step of the locking portion 110 is smaller than the thickness of the outer wall of the container body 1, the barrier member 2 is attached to the locking portion 110.
Can be pushed out so as not to be caught. In this case, the barrier member 2 may be pushed out to the end together with the pressing portion 4. Is also good.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an extrusion container used in an embodiment of the present invention.

FIG. 2 is a sectional view of the extrusion container of FIG.

FIG. 3 is a partially enlarged view of the extrusion container shown in FIG.

FIG. 4 is another partially enlarged view of the extrusion container shown in FIG.

FIG. 5 is a perspective view of a main part for explaining a discarded state of the extrusion container used in the embodiment of the present invention.

FIG. 6 is a cross-sectional view of an extrusion container gun according to one embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a state in which contents are pushed out by the push-out container gun shown in FIG. 6;

8 is a cross-sectional view showing a state where the contents are pushed out by the push-out container gun shown in FIG.

9 is a cross-sectional view showing a state where the barrier member is discarded by the extrusion container gun shown in FIG. 6;

[Explanation of symbols]

1 container body, 2 barrier members, 3 lids, 4 pressing parts, 31 discharge ports, 100 gun for extrusion container, 109
Backing plate, 110 locking part.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) E04F 21/165 B65D 83/00 BRLD F-term (Reference) 3E014 KA06 3E065 AA02 BA01 BA05 BA11 BB03 CA09 DA03 DA11 DB05 DC01 DD01 DD08 DD09 DE04 FA11 GA04 JA23 4C066 AA09 BB01 CC01 DD07 EE06 EE14 FF02 GG01 GG05 GG07 HH28 KK15 LL30 4F041 BA02 BA11 CB04 CB05 CB43 CB54

Claims (1)

[Claims] 1. A cylindrical container main body, a lid provided on a distal end side of the cylindrical container main body, a barrier member formed on an inner side wall of the cylindrical container main body, and a base end side of the cylindrical container main body. An extruder container gun used for an extruder container having an provided pressing portion and capable of separating the lid portion, the barrier member, and the pressing portion from the tubular container main body, wherein the container holder stores the extruded container. In the middle of the extruded container, wherein a locking portion capable of locking the outer wall of the cylindrical container main body with a gap where the lid and the barrier member come out after the contents have been taken out is provided. For gun.