JPH10287348A - Container for instantaneous adhesive able to suppress discharging quantity - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably prevent an adhesive from leaking out and enable stable use by suppressing a discharging quantity free from danger to erroneously discharge the adhesive by mounting a rod inside a nozzle and allowing the adhesive to flow out from a gap between the rod and the nozzle inner wall by pressing a container body. SOLUTION: A rod 1 with two grooves 2 of a width of approximately 0.5 mm, a depth of approximately 1 mm and a length of approximately 20 mm cut in recess on a side of a tip of the rod 1 made of cylindrical fluorine resin with a diameter of approximately 3 mm is inserted into a nozzle 4 at a head of a container and fixed so that a lower end of the rod 1 is in contact with a bottom of a container body 3. In addition, a diameter of a nozzle inner wall at a position 5 where the tip of the rod 1 in contact is approximately 3.5 mm, while ethyl-α-cyanoacrylate ethyl of approximately 5 cps is put in the container body 3 for use. In this case, adhesive may be discharged by appropriate press with fingers, discharge is stopped when the press is stopped, and even if the container is fallen down at approximately 20 deg.C and a container temperature is raised to approximately 35 deg.C, further discharge may not be observed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for an instant adhesive which is very reactive and solidifies by reacting with moisture in the air.

[0002]

2. Description of the Related Art Instant adhesives are widely used for industrial and general purposes, and are now one of the indispensable adhesives. However, the instant adhesive is very reactive and the container in which it is placed must be carefully designed. Therefore, as the material of the container, olefin-based plastics, metal tubes, and the like are generally used.Since α-cyanoacrylate is particularly rich in reactivity, an olefin-based material container is used. It is placed in a metal tube or the like to prevent the product from solidifying by reacting with moisture in the air. In addition, after opening the adhesive container and using it, the nozzle is capped or stuck with a needle so that the adhesive does not leak from the nozzle, but even with this operation, the adhesive solidifies inside the nozzle. If the container accidentally lays down, for example, when you forget to close the lid, etc., due to residual pressure inside the container, about half of the adhesive leaks out of the container, causing various problems .

[0003]

In order to solve such a problem, the present inventors disclosed in Japanese Utility Model Application No. 3-32427 (see Japanese Utility Model Application Laid-Open No. 6-39166) an instant adhesive at the tip of a container nozzle. It has been proposed to suppress ejection by inserting a material that is difficult to react with. However, this method has a disadvantage that the adhesive leaks out depending on the viscosity of the adhesive, and the adhesive is discharged relatively easily even when a child or the like is pressed. In view of the above, the present invention provides an instant adhesive container that can more reliably prevent the adhesive from leaking out, and can stably use the adhesive by suppressing the amount of the adhesive discharged without the possibility of an infant or the like accidentally discharging the adhesive. As an issue.

[0004]

According to the present invention, there is provided an instant adhesive container used by discharging an adhesive from a nozzle.
A rod is attached inside the nozzle, and by pressing the container body,
The above problem was solved by allowing the adhesive to flow out of the gap between the rod and the inner wall of the nozzle.

[0005] The rod is brought into contact with the inner wall of the nozzle, firstly, the discharge of the adhesive is stopped, and depending on the properties, performance, use, etc. of the adhesive, irregularities or holes are formed in the side wall of the rod. By doing so, it is possible to prevent the adhesive from being discharged unless a certain degree of finger pressure is applied to the container body.

Accordingly, the rod used in the present invention is only required to stop the flow of the adhesive inside the container main body by being inserted into the nozzle of the container, and the sectional shape thereof may be circular, elliptical, polygonal or the like. Either type may be used, but it is preferable that it can be fixed to the inner wall of the nozzle with good adhesion, and it is generally reasonable to use a circular shape or a shape close to the shape.

The gap for flowing out the adhesive can be secured by providing a vertical groove or a rail-shaped projection on the side surface of the rod body.
The diameter of the inner wall of the nozzle at the position where the tip of the rod contacts
It is good to be 40%. Also, the rod may be a hollow tube, in which case, a hole or notch is provided in the side wall,
Preferably, the adhesive flows into the tube from the hole or notch and is released from the nozzle tip. In addition, a porous material inert to the adhesive is inserted into the tip of the hollow tubular rod to limit the amount of the adhesive discharged from the tip of the rod to the tip of the nozzle. Good. As the porous body, any of inert fiber bundles, porous ceramics, plastics, and the like can be used.

When a longitudinal groove is provided on the side surface of the rod, the number of the cutting grooves may be one or two or more. However, since one is likely to cause clogging, usually two or more grooves are provided. Is good.
The shape and size of the groove are not particularly limited, and may be linear or corrugated, but need to be formed so that the adhesive in the container can be guided to the nozzle tip. . In addition, the shape and size of the groove need to be adjusted depending on the viscosity of the adhesive (α-cyanoacrylate or the like). In general, the diameter of the groove is determined by the diameter of the inner wall of the nozzle at the position where the tip of the rod contacts. It is preferable to adjust to about 0.1 to 30%.

Further, a rail-shaped projection may be provided on the side surface of the rod body. In this case, the length of the rail-shaped projection may extend from the tip contacting the inner wall of the nozzle to the inside of the container body at the time of mounting. The adhesive may be discharged from the gap formed on both sides of the rail-shaped projection to the tip of the nozzle.

[0010] As described above, the rod body can be subjected to uneven processing or molded depending on the type of the adhesive. Also, many holes, foams, fibers, and pipes can be used. However, since it is difficult to control the discharge of a tubular rod with a hole, it is difficult for the pipe to react with the instant adhesive in the pipe. It is necessary to pack a porous body such as a filament-shaped body so that the mouth has a large number of fine openings so that the adhesive is not discharged under a certain pressure.

When a hollow tubular rod is mounted with its lower end in contact with the bottom of the container, it is necessary to provide a hole or notch in the side wall of the tubular rod. Otherwise, when the container is turned upside down, even if the container is pressed, the adhesive and air in the container cannot be completely discharged. The number of holes and notches is not particularly limited, but a plurality of holes and notches are preferably provided to avoid the risk of clogging.

The holes and cutouts are preferably provided so that at least a part thereof is located above the container when the tubular rod is mounted on the container. The size of the hole or notch is
There is no particular limitation as long as the adhesive and air in the container can flow while the container is pressed. It may have a slit shape, or may be a round hole or square hole having a diameter of about 0.1 to 1 mm.

The material of the rod of the present invention may be an olefin, fluorine, silicon, ester or metal, which is difficult to react with the instant adhesive, or a material treated with these. . There is no limitation on the length of the rod, and any rod that is longer than the diameter of the rod and fits in the nozzle, and that is bent and in contact with the bottom or side wall of the container is included. In any case, it is preferable that the rod is formed to have such a thickness that the upper end thereof is in the middle of the nozzle of the container and is in contact with the inner wall of the nozzle.

[0014] The container may be made of any of metal, plastic or a laminate thereof.
The shape may be a tube shape or a bottle shape, but is preferably a somewhat elastic plastic container which can be pressed to discharge the adhesive. In any case, a nozzle is attached to the opening for use, and a cap may be further provided at the tip of the nozzle.

[0015]

Next, the present invention will be described in more detail by way of examples. Example 1 A container of this example has a cylindrical body made of a fluorine-containing resin having a diameter of 3 mm, and has a width of 0.5 mm, a depth of 1 mm, and a length of 20 mm on the side surface of the tip.
A rod 1 having two concave grooves 2 mm (see FIG. 1) is inserted into a nozzle 4 at the head of the container, and fixed so that the lower end of the rod 1 contacts the bottom of the container body 3. It is installed (see FIG. 2). The diameter of the inner wall of the nozzle at the position 5 where the tip of the rod 1 abuts was 3.5 mm. When 5 cps of α-ethyl cyanoacrylate was used in the container body 3 of this container and used, the adhesive was discharged with a moderate finger pressure, the protrusion stopped when the pressure was stopped, and the container stopped at 20 ° C. Even when the container was turned over and the container temperature was raised to 35 ° C., no further discharge was observed. In this container, it was possible to adjust the discharge of a very small amount of an instant adhesive having a viscosity as low as 5 cps of 1 drop or less, and it was very effective for bonding small objects.

Example 2 A side wall of a polyethylene pipe 9 having an outer diameter of 4 mm and an inner diameter of 2 mm
The rod body 1 is provided with three holes 6 having a diameter of 1 mm and notches 7 formed by two cutters, and a porous body 8 formed by bundling a 0.1 mm-thick polypropylene filament at the tip of the rod body 1 The pressed rod 1 was made (see FIG. 3), and the tip of the rod 1 was inserted into the nozzle 4 so that the lower end was in contact with the bottom of the container body 2 to which the nozzle 4 was attached. The diameter of the inner wall of the nozzle at the position 5 where the rod 1 contacts was about 4 mm. When a mixed solution of 1,1,1-trichloroethane and α-cyanoacrylate was put into the container body 3 (see FIG. 4),
It was confirmed that the liquid mixture was discharged by pressing the container at a constant pressure (about 2 kg) with a finger, but it was not erroneously discharged due to a change in the outside air temperature.

In the present invention, as shown in FIG. 4, the tip of the nozzle can be closed by the cap 10 with an opening / needle, the container can be doubled, and a heat insulating or buffering agent can be packed around. Accordingly, unnecessary discharge of the adhesive containing the volatile solvent is less likely to be affected by the external temperature, and it can be more reliably prevented.

[0018]

According to the present invention, by appropriately selecting the rod according to the adhesive used, the discharge amount can be easily suppressed by the rod. In addition, workability in mass production is also effective. It should be noted that, above all, the adhesive is not discharged below a certain finger pressure, so that there is no fear that the infant or the like will erroneously discharge the adhesive.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rod used in an example of the present invention.

FIG. 2 is a perspective view showing an example of a container using the rod of FIG. 1;

FIG. 3 is a perspective view of a rod used in an example of the present invention.

FIG. 4 is a sectional view showing an example of a container using the rod of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod body 2 Groove 3 Container main body 4 Nozzle 5 Position 6 Hole 7 Notch 8 Porous body 9 Tube 10 Cap for use with opening and needle

Claims (3)

[Claims] 1. An instant adhesive container, wherein a nozzle-like cap is mounted on the head of a container body, and a rod body for suppressing an amount of adhesive discharged is inserted inside the nozzle. . 2. The rod has a length extending from the bottom of the container body to the inside of the nozzle of the cap, the tip of the rod is in close contact with the inner wall of the nozzle of the cap, and the head of the rod is At least one longitudinal groove is provided on the side surface of the part, and the cross-sectional diameter of the groove is 0.01 to 40% of the diameter of the nozzle inner wall at the position where the tip of the rod contacts. The container according to claim 1, wherein a lower end of the groove is located inside the container body. 3. The rod body is formed in a hollow tubular shape, a porous body is inserted into a tip of the rod body, and a hole or a notch is provided in a side wall of the rod body. The container of claim 1.