JP2002225927A - Cartridge for flowable substance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a flowable substance filled in a cartridge from attaching to a body of a cartridge mounting tool or a hand. SOLUTION: A cover tube 4 is fitted over and fixed to an outer periphery of a cartridge body 2 filled with the flowable substance. An end of the cover tube 4 is made to protrude from the cartridge body 2. The protruding end is designed to be a small diameter portion 43 with a diameter smaller than that of the cartridge body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid material which is filled with an adhesive, a sealing material or other fluid material and which is discharged to the outside by using a discharge device such as a discharge gun. Regarding the cartridge.

[0002]

2. Description of the Related Art Conventional cartridges of this type include:
For example, there is one shown in FIG. This cartridge A
A cylindrical cartridge main body a1 made of a film body, and closing means a2 made of a relatively thick wire or the like that winds and closes both ends of the cartridge main body a1;
The inside of the cartridge body a1 is filled with a fluid substance.

FIG. 7 shows a state in which the cartridge A is inserted into a cartridge mounting jig B. The cartridge mounting jig B has a jig body b1 having a circular cross section with both ends opened, and a piston b2 is provided on the inner periphery of the jig body b1.
Are slidably provided. A nozzle (not shown) is detachably attached to at least one end of the jig body b1.

In order to discharge a fluid substance from the cartridge A using the cartridge mounting jig B, first, the jig main body b1 is set up, and the cartridge A is inserted into the jig main body b1 from the upper end opening. At this time, the piston b2
As for the cartridge A, almost the entire cartridge A is
Is moved in advance to the lower end side of the jig body b1 so that the jig body b1 can enter a portion above the piston b2.
Next, the upper end of the cartridge main body a1 that is in contact with the lower surface of the upper closing means a2 is cut with scissors or the like to open the upper end of the cartridge main body a1. Then, the jig body a1
The nozzle is fitted and fixed in the upper opening of the nozzle.

After the cartridge A is inserted into the cartridge mounting jig B in this manner, the mounting jig B is mounted on a discharge device (not shown) such as a discharge gun. Then, the piston b2 is pushed toward the nozzle by the rod of the discharge device. Then, the cartridge A is crushed from the end on the piston b2 side, and the fluid substance in the cartridge A is discharged to the outside via the nozzle.

[0006]

In the above-mentioned conventional cartridge A, when the upper end is cut and opened, a part of the fluid substance filled therein overflows from the opening. There is a problem that the overflowed fluid substance adheres to the jig body b1 of the cartridge mounting jig or to the hand.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a main body filled with a flowable substance therein, and when used, opens one end of the cartridge main body. In the fluid substance cartridge for discharging the fluid substance from the opening, a cover cylinder is fitted and fixed to the outer periphery of the cartridge body, and at least one end of the cover cylinder is opened from one end opened when the cartridge body is used. It is characterized by being protruded.
In this case, it is preferable that one end of the cover cylinder protruding from the cartridge main body be a small-diameter part smaller in diameter than the cartridge main body. Also, the cover cylinder is
It is desirable to use a heat-shrinkable resin.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a fluid substance cartridge 1 according to the present invention. The cartridge 1 includes a cartridge body 2, a closing means 3, and a cover cylinder 4.

The cartridge body 2 is made of a single-layer resin film or a thin film composed of one or more resin films and a plurality of metal foils in the same manner as in the prior art. It is formed as. Both ends of the cartridge body 2 are closed by winding a closing means 3 made of a relatively thick metal wire. The inside of the cartridge main body 2 is filled with a fluid substance such as an adhesive or a sealing material according to its use. Usually, the closing means 3 is provided at one end opening of the cartridge main body 2, and after filling the cartridge main body 2 with a fluid substance, it is provided at the other end opening. The cartridge main body 2 may be formed in a cylindrical shape with a bottom having one end integrally formed with a bottom and only the other end opened. If the inside can be filled with a fluid substance, bottoms may be formed at both ends.

A cover cylinder 4 is fitted and fixed to the outer periphery of the cartridge body 2. The cover cylinder 4 is made of a heat-shrinkable resin, and has an inner diameter slightly larger than that of the cartridge body 2 before contraction, as shown in FIG. Thus, the cartridge body 2 can be easily inserted into the cover tube 4. If the cartridge main body 2 is not inserted into the cover cylinder 4, the inner diameter of the cover cylinder 4 becomes smaller than the outer diameter of the cartridge main body 2 after heat shrinkage. Therefore, the portion of the cover cylinder 4 that faces the cartridge body 2 is tightly fitted to the outer periphery of the cartridge body 2 when thermally contracted.

The length of the cover cylinder 4 is
It is slightly longer. One end (right end in FIG. 2) of the cover cylinder 4 slightly protrudes from one end of the cartridge body 2. Then, the protruding portion thermally shrinks along the end surface of the cartridge body 2, and the movement restricting portion 41.
It has become. On the other hand, the other end (the left end in FIG. 2) of the cover cylinder 4 protrudes from the cartridge body 2 by a predetermined length, and a portion of the protrusion near the cartridge body 2 extends along the end surface of the cartridge body 2. As a result, the heat restricting portion 42 becomes the movement restricting portion 42. The cover cylinder 4 is immovably fixed to the cartridge body 2 by the two movement restricting portions 41 and 42 sandwiching the cartridge body 2 from both ends.

A distal end portion of the other end of the cover cylinder 4 distant from the cartridge body 2 becomes a small-diameter portion 43 smaller in diameter than the cartridge body 2 due to free thermal contraction. The small diameter portion 43 protrudes from the cartridge body 2 by a predetermined length. The inner diameter D1 of the small diameter portion 43 is slightly larger than the outer diameter D2 of the closing means 3.

When the cartridge 1 having the above configuration is used to discharge a fluid substance using a discharge device such as a discharge gun (not shown), first, as shown in FIG. insert. The cartridge mounting jig 5 includes a cylindrical jig body 51 having both ends opened, and a piston 5 slidably fitted on the inner periphery of the jig body 51.
2 and a nozzle 53 that is detachably fitted to both ends of the jig main body 51. At both ends of the jig body 51,
A plurality of notches 51a are formed at regular intervals in the circumferential direction. When the cartridge 1 is inserted into the jig main body 51, the piston 52 is desirably located at an initial position separated from the left or right end face of the jig main body 51 by a predetermined distance. However, it may be located at a position slightly closer to the end face side of the jig main body 51 than the initial position. The nozzle 53 has a fitting portion 53 a fitted to the inner periphery of the jig body 51.
And a nozzle portion 53c communicating with the fitting portion 53a via a bottom portion 53b. The nozzle portion 53c gradually decreases in diameter from the base end to the tip end.

The cartridge 1 is mounted on the cartridge mounting jig 5.
Is inserted, the piston 52 is previously positioned at an initial position at one end of the jig body 51.
Then, the cartridge 1 is inserted into the other end of the jig body 51. In this case, the cartridge 1 is inserted into the jig main body 51 from one end on the side of the movement restricting portion 41. Cartridge 1
When the one end of the jig abuts the piston 52, the entire cartridge 1 enters the jig body 51, and the tip of the small diameter portion 43 is located on substantially the same plane as the end face of the end of the jig body 51 opposite to the piston 52. I do. Thus, the length of the jig body 51 is set. Then, the fitting portion 53 of the nozzle 53
a is inserted into the jig main body 51 until the outer end surface of the bottom 53b is located on the same plane as the end surface of the jig main body 51. Then, the distal end of the small-diameter portion 43 fits into the proximal end of the nozzle 53c.

After the cartridge 1 is inserted into the mounting jig 5 as described above, the needle-like body 6 such as an awl is inserted into the jig main body 51 from the nozzle portion 53c, and one or more needles 6 are inserted into the end surface of the cartridge main body 2. Drill holes (openings). Drilling with the needle-shaped body 6 may be performed before the nozzle 53 is fitted and fixed to the jig main body 51. In that case, the small diameter portion 43
It is preferable that the jig main body 51 be set up so that the needle is up, and the needle-like body 6 be inserted from above to make a hole in the cartridge main body 2. In any case, when a hole is formed in the cartridge main body 2 with the needle-shaped body 6, the fluid substance filled in the cartridge main body 2 flows out of the hole. At this time, since the end of the cartridge body 2 is surrounded by the small-diameter portion 43 protruding from the cartridge body 2, the fluid substance flowing out of the cartridge main body 2 stays in the small-diameter portion 43 and does not go outside there. . Therefore, the fluid substance coming out of the cartridge body 2 does not adhere to the jig body 51 or the hand. In particular, when a hole is formed in the cartridge main body 2 in a state where the nozzle 53 is fitted to the jig main body 51, the small-diameter portion 43 is fitted to the nozzle portion 53c.
The fluid substance flowing out of the nozzle directly enters the nozzle portion 53c. Therefore, it is possible to more reliably prevent the fluid substance from adhering to the jig body 51 and the hand.

Next, the mounting jig 5 is mounted on a discharge device (not shown) such as a discharge gun. Then, the piston 52 is pressed and moved toward the nozzle 53 by the rod of the discharge device.
At the beginning of the movement of the piston 52, the whole cartridge 1 is pushed by the piston 52 and moves toward the nozzle 53, but the end surface (the regulating portion 42) of the cartridge 1 is
When the cartridge 1 comes into contact with the cartridge b and stops, the cartridge 1 is gradually crushed in an accordion shape from the rear end. At this time, when the cover cylinder 4 is fitted to the outer peripheral surface of the nozzle main body 2, the film constituting the cartridge main body 2 is engaged between the inner peripheral surface of the jig main body 51 and the outer peripheral surface of the piston 52. Can be prevented.

When the entire cartridge 1 is crushed as shown in FIG. 4, the nozzle 53 is pulled out of the jig body 51 as shown in FIG. At this time, since a plurality of notches 51a are formed at the end of the jig main body 51, a finger can be inserted into each notch 51a and the fitting portion 53a of the nozzle 53 can be grasped. 53 is the jig body 51
Can be easily extracted from The notch 51
a is longer than the length L2 of the fitting portion 53a,
When the fitting portion 53a is removed from the jig main body 51, air enters the space in the jig main body 51 between the piston 52 and the crushed cartridge main body 2 from the notch 51a. Therefore, there is no negative pressure between them, and the cartridge 1 is easily pulled out of the mounting cylinder B. As a result, when the nozzle 53 is pulled out of the jig body 51, the cartridge 1 comes out of the jig body 51 with the nozzle 53 attached. Therefore, the cartridge 1 includes the nozzle 5
It is not necessary to remove the jig from the jig main body 51 again after removing the jig 3, and the jig can be easily extracted from the jig main body 51 together with the nozzle 53. Thereafter, the crushed cartridge 1 is removed from the nozzle 53 and discarded.

When the fluid substance is discharged from another cartridge 1, the above procedure may be performed again. That is, the piston 52 is located at an initial position opposite to the original initial position. Therefore, the cartridge 1 is inserted into the opposite part of the jig body 51, and the nozzle 53 is inserted into the opposite end.
Is attached to the jig body 51. After that, by performing the same procedure as the above procedure, the fluid substance can be discharged from the cartridge 1.

It should be noted that the present invention is not limited to the above-described embodiment, and can be appropriately changed. For example, in the above-described embodiment, the cover tube 4 protruding from the cartridge body 2 is contracted by thermally contracting the cover tube 4.
A position regulating portion 41 at one end and a position regulating portion 42 at the other end.
Although the small diameter portion 43 is formed, the inner and outer diameters of the cover cylinder 41 may be constant over the entire length, and at least one end (the end at which the cartridge body 2 is opened) may protrude from the cartridge body 2. In such a case, the cartridge main body 2 can be opened by cutting off the end inside the closing means 3 of the cartridge main body 2 without making a hole in the end face of the cartridge main body 2 with the needle-like body 6. It is.

[0020]

As described above, according to the present invention, it is possible to prevent the fluid substance filled in the cartridge main body from adhering to the jig main body of the cartridge mounting jig or the hand. can get.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a cartridge according to the present invention.

FIG. 2 is a view showing the cartridge body of the embodiment and a cover cylinder before heat shrinkage into which the cartridge body is inserted.

FIG. 3 is a partially omitted cross-sectional view showing a state where the cartridge according to the embodiment is inserted into a cartridge mounting cylinder and a nozzle is fitted and fixed to the cartridge mounting cylinder.

FIG. 4 is a diagram showing a state where the entire cartridge of the embodiment is crushed.

FIG. 5 is a diagram illustrating a state in which the crushed cartridge is removed from a cartridge mounting cylinder together with a nozzle.

FIG. 6 is a view showing an example of a conventional cartridge for a flowable substance.

FIG. 7 is a cross-sectional view showing a state where the cartridge is inserted into a cartridge mounting tube and an upper end portion thereof is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge 2 Cartridge main body 3 Closing metal fitting (closing means) 4 Cover cylinder 41 Small diameter part

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoji Tanaka 2-6-2 Kodai, Miyamae-ku, Kawasaki-shi, Kanagawa Prefecture Rapport Miyamaehira F-term in Polymer Systems Co., Ltd. 3E014 PA03 PC07 PD30 PE30 PF10 3E067 AA04 AA21 AB96 AC01 BA14B BA21C BB11B BB14B BB14C BB25B BC03B BC03C CA01 EA23 EA40 EB15 EB22 EC28 ED03 ED04 EE59 FA04 FB01 FC01 FC02 GD10 3E086 AA22 AC40 AD16 BB67 CA40 4F041 AA01 AB02 BA02 BA02 BA02 BA02 BA02

Claims (3)

[Claims] 1. A cartridge for a fluid substance, which has a main body filled with a fluid substance therein, and in use, opens one end of the cartridge body and discharges the fluid substance from the opening. Fit the cover cylinder on the outer periphery of the cartridge body and fix it.
A cartridge for a fluid substance, wherein at least one end of the cover cylinder projects from one end opened when the cartridge body is used. 2. The cartridge for a fluid substance according to claim 1, wherein one end of the cover cylinder protruding from the cartridge body is a small diameter portion having a smaller diameter than the cartridge body. 3. The cartridge for a fluid substance according to claim 1, wherein the cover cylinder is formed of a heat-shrinkable resin.