JPH0525746Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field of the invention This invention is an applicator, in particular, which contains a coating liquid such as adhesive, ink, or enamel that has been gelled by a gelling agent or has high viscosity and low fluidity.
The present invention relates to an applicator that can reliably lead out a coating liquid to a coating section with a simple operation.

Prior Art Conventional applicators, especially applicators that contain high-viscosity or gel-like coating liquids, have a body molded from an elastic material such as polyethylene or rubber, and the body is pressed to apply the coating liquid stored inside. However, when the compressed body tries to return to its original shape when the pressure is released, the coating liquid that was once led out to the application area is pulled back, making it impossible or difficult to apply. There were flaws.

Problems to be Solved by the Invention This invention solves the above-mentioned drawbacks and provides an applicator that can reliably lead out the application liquid to the application part with a simple operation.

Structure of the device In Figure 1, 1 is a cylindrical applicator body made of an elastic material such as polyethylene or rubber.
The distal portion consists of a medium-diameter mounting portion 2, a small-diameter portion 3, and a main body opening 4. 5 is a coating liquid such as adhesive, ink or enamel that has been gelled with a gelling agent or has a high viscosity and low fluidity 6
The coating liquid container contains a large diameter portion 7 and a small diameter portion 8, and a coating portion 9 is attached to the tip of the small diameter portion 8. In this embodiment, a ballpoint pen tip-like application part is shown, but any material used as the application part of a normal marking pen, such as the tip of a brush or felt, can be used. 10
is a backflow prevention agent made of a hard, grease-like substance, and is placed in contact with the entire end surface of the coating liquid 6 to prevent the coating liquid 6 from flowing back or scattering due to impact. Reference numeral 11 denotes a holding member which is attached to the mounting part 2 of the main body 1 and is made up of a large diameter part 12, a shoulder part 13, a medium diameter part 14, a shoulder part 15, and a small diameter part 16. The tip of No. 8 is attached and fixed. Further, the shoulder portion 15 is provided with a small diameter air hole 17. Reference numeral 18 denotes a plate-shaped valve body having a center hole that is slidably inserted into the main body opening 4 of the main body 1 and the shoulder 15 of the holding member 11.

A gelled coating solution is one in which a gelling agent such as xanthan gum is added when the solvent of the coating solution is water, or benzylidene sorbitol when the solvent is an organic solvent, and is made into a fluffy shape. However, it becomes fluid when pressurized.

FIG. 2 shows a second embodiment, which is substantially the same as the first embodiment, so only the differences will be explained.

1' is a bellows part connected to the end of the main body 1;
4' is the inclined part of the holding member 11, and 17' is the inclined part 1.
The air hole 18' formed at the tip of the valve body 4' is a valve body having a trapezoidal cross section.

Effects of the invention When using the applicator shown in FIG. Since the coating liquid 6 is also pressurized, the gel-like coating liquid 6 becomes sol-like and fluid, and the high-viscosity coating liquid is forced to flow due to the pressurization, so that it is led out to the coating section 9 and can be applied. At this time, valve body 1
8 is moved forward by air pressure to open the air hole 1 of the holding member 11.
Since the main body 8 is pressed and sealed, the air pressure inside the main body 1 is maintained and the coating liquid 6 is reliably drawn out. When the pressing of the main body 1 is stopped, the main body 1 tries to return to its old state due to its elasticity, and the inside of the main body 1 becomes depressurized, and the valve body 18 moves toward the end, so that the air hole 17
opens and outside air enters the main body 1, so that the main body 1 quickly returns to its old state.

Therefore, the coating liquid 6 led out to the coating section 9 will not flow back and make coating impossible or difficult.

In FIG. 2, when the end (arrow) of the bellows part 1' of the main body 1 is pressed, the bellows part 1 is compressed and the air pressure inside the main body 1 increases, and the valve body 18' is moved toward the tip and the air hole is opened. 17' is sealed.

Therefore, similarly to the above, the coating liquid quickly reaches the coating portion 9.
It is guided to the state where it can be coated.

When the pressure on the bellows part 1' is stopped, the bellows part 1' expands and the inside of the main body 1 is about to become depressurized, and the valve body 18' moves toward the end, so that the air hole 17' opens and outside air enters the main body 1, so that the main body 1 quickly returns to its old state.

Therefore, the coating liquid 6 led out to the coating section 9 will not flow back and make coating impossible or difficult.

As described above, in this invention, the application liquid is reliably drawn out to the application area by applying pressure by pressing the applicator body, and the drawn out application liquid is not pulled back due to the decompression effect caused by releasing the pressure, so it can be smoothly delivered. It has an effect that can be applied.

In the present invention, the valve body 18' is formed into a cylindrical body made of a thin deformable synthetic resin or synthetic rubber whose outer diameter is inscribed in the inclined part 14', and when the bellows part 1' is compressed. It is also possible to deform and expand outward by air pressure to seal the air hole 17', and when the pressure is reduced, to deform inward to open the air hole 17' and allow air to enter.

Further, the inclined portion 14' is a straight cylindrical portion, and the valve body 1
8 can of course be formed into a cylindrical body corresponding to the shape of the cylindrical portion.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the first embodiment of this invention;
FIG. 2 is a longitudinal sectional view of the second embodiment. DESCRIPTION OF SYMBOLS 1... Applicator main body, 4... Main body opening, 5... Coating liquid container, 6... Coating liquid, 11... Holding member, 1
7, 17'... air hole, 18, 18'... valve body.

Claims (1)

[Scope of utility model registration request] An applicator main body 1 made of an elastic material and capable of being deformed and compressed by external force has a backflow preventive agent 10 housed at its rear end in contact with a high viscosity coating liquid 6, and at its tip.
A holding member 1 has a built-in coating liquid container 5 with an open rear end to which a coating section 9 without a valve mechanism is attached, and the container 5 is attached and fixed therein, and an air hole 17 is bored therein.
1 is attached to the main body opening 4, and a valve body 18 opens and closes the air hole 17 between the holding member 11 and the main body opening 4.
An applicator characterized by being equipped with.