KR20130046798A - A capacitive sensing touch pen - Google Patents

Abstract

PURPOSE: A high-quality, high-functionality capacitive character touch pen is provided to commercialize a touch pen as an accessory product by adding decoration to the touch pen, and to form an air cushion in a rubber tip so that the rubber tip gets quickly restored and is safe from being severely deformed and dented. CONSTITUTION: A capacitive touch pen(1) is composed of a dielectric film(10a) coated on the inside of a body(10), and an elastic supporter(14) and a fabric cover(12a) inserted into and put on the inside and outside of a rubber tip(12) respectively. A thin dielectric film, which is a liquid conductive substance coated and hardened, is formed at the inside of the body made of a non-conductive substance. The fabric cover is put on the outside of the rubber tip, and is pressed and fixed by a metal supporting tube(13) put on the outside of the rubber tip and a coupling(11). The fabric cover prevents abrasion of the rubber tip touching a screen, and enables the touch pen to move smoothly like sliding when dragging a screen. The rubber tip is formed in a hemispherical shape and a space part is formed at the inside, and the elastic supporter is inserted into the space part in the rubber tip and elastically supports the inside of the rubber tip. The elastic supporter is composed of a sponge having excellent elastic force and buffering capacity, soft rubber, etc. In some cases, if a vertical through-hole(11a) is formed at the coupling and enables air to flow into the space part in the rubber tip, air flows in through the external through-hole when the rubber tip gets restored from being pressed to its original shape by the restoring force of the elastic supporter, so that the rubber tip is quickly restored.

Description

Capacitive touch pen and coating device for touch pen body {a capacitive sensing touch pen}

The present invention relates to a capacitive sensing touch pen and a coating device of a touch pen body, and more particularly, a dielectric film is formed inside the touch pen body to use a body made of non-conductive synthetic resin. An elastic support is inserted therein to prevent a hemisphere tip from being severely deformed or crushed, and a drag operation can be efficiently performed.

In general, the capacitive touch pen is configured so that the conductive rubber tip can be in soft contact with the screen to sense the electric charge (flow of current) on the screen surface. In the capacitive touch method, current flowing through the screen surface flows into the body through the conductive rubber tip and the touch pen body, and the sensor detects the position of the electron where the change has occurred and operates the sensor.

Therefore, the touch pen body, which serves as a handle, needs to be formed of a metal cylinder or metal plated on the outside of the synthetic resin tube, thereby increasing manufacturing costs, not being able to display various colors, and not being able to transfer printing onto the touch pen body. We couldn't diversify our products because we couldn't commercialize pens or use them as fancy phrases.

Most of the writing instruments produced in recent years use non-conductive synthetic resin bodies in order to lighten the weight of the product and to display various colors and patterns. Therefore, it is difficult to apply a non-conductive body to a touch pen or writing instrument.

In particular, in order to protect the natural environment, environmentally friendly wood or recycled pulp is often used as a writing instrument body, and thus a proposal of a technology that can be combined with an electrostatic touch pen is required even if a non-conductive body is used.

In addition, the rubber tip of the capacitive touch pen is made of a hemispherical shape, and the cap is changed in capacitance by touching the screen while being pressed in a hollow state, and the tip is severely deformed when a strong force is applied. As a result, not only accurate contact was made but also an error occurred, and a long time use resulted in a deterioration of the restoring force and deterioration of appearance.

In particular, the rubber tip is easily worn due to the characteristics of the material, the friction force is high, the drag does not slip smoothly when the rubber tip is in contact with the screen (drag) does not slip easily and generates friction resistance (摩擦 抵抗) could not be made smoothly.

The present invention has been made in view of the above-described problems, the object of which is to add a decorative pen to the touch pen to commercialize the touch pen as an accessory article, and the air cushion is formed inside the rubber tip to quickly restore the rubber tip. It is to provide a high-quality, high-performance capacitive character touch pen that can be prevented from being severely deformed and distorted.

Features of the present invention for achieving the above object, the capacitive touch pen is coupled to the metal coupling 11 to the body 10 consisting of a tube, the conductive rubber tip 12 to the coupling 11 In (1), the dielectric film 10a is formed inside the body 10 made of a non-conductive material and is cured by applying a liquid conductive material, and a fabric cover (outside the rubber tip 12). 12a) is covered, the metal support tube 13 is fitted to the outside of the rubber tip 12 and the coupling 11, the fabric cover 12a is fixed, the inner space portion of the rubber tip 12, the elastic support ( It can be achieved by the capacitive touch pen, characterized in that 14) is inserted to enable elastic support of the inside of the rubber tip (12).

In the present invention as described above, the deformation of the rubber tip 12 is minimized by the elastic support 14 inserted into the rubber tip 12, the rubber tip 12 is pressed on the touch screen It is very convenient to use because it is quickly restored, but the body 10 can be formed of synthetic resin or wood by the dielectric film 10a applied to the inside of the body 10. Since it is possible to produce a character product that can be printed, but can be easily applied to existing writing instruments, the fabric cover 12a which is covered on the outside of the rubber tip 12 can be kept inexpensive and at the same time, the fabric cover 12a is in contact with the screen. Minimizing the wear of the rubber tip 12 and providing a high-quality, high-performance touch pen with smooth drag operation, which maximizes the external competitiveness of the capacitive touch pen. It can be raised.

1 is an exploded perspective view illustrating an embodiment of the present invention,
Figure 2 is a cross-sectional view illustrating an embodiment of the present invention,
3 is a cross-sectional view illustrating another embodiment of FIG.
4 is a cross-sectional view illustrating a state in which the touch pen according to the present invention is applied to a writing instrument;
5A to 5C are cross-sectional views illustrating a state in which the touch pen according to the present invention is applied to a mechanical pencil and a ball pen;
6 is a cross-sectional view illustrating a painting device of the touch pen body according to the present invention;
7a to 7c are cross-sectional views showing the spraying process of the conductive pigment of the coating apparatus according to the present invention, respectively;
8A and 8B are photographs illustrating a state in which the touch pen according to the present invention is applied to a mechanical pencil.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the metal coupling 11 is coupled to the body 10 formed of a tube so as to be held by hand, and the metal coupling 11 has a hemispherical conductive rubber tip. The 12 is combined to constitute the capacitive touch pen 1.

Of course, the capacitive touch pen 1 of the above-described configuration is a known art. However, in the present invention, the most important feature is the elastic support 14 and the fabric which are inserted into and covered with the dielectric film 10a and the rubber tip 12 coated inside the body 10. The cover 12a is to implement a high-quality, high-performance capacitive touch pen.

That is, a thin dielectric film 10a formed by coating and curing a liquid conductive material is formed inside the body 10 made of a non-conductive material.

The conductive material forming the dielectric film 10a is formed by mixing a carbon powder, which is a conductor, with an adhesive pigment and thinly coating the inside of the body 10.

The dielectric film 10a has an advantage that non-conductive synthetic resin or wood can be used without generating a charge due to an induced current and forming the body 10 from metal.

That is, the induction current by the dielectric film 10a uses unipolar induction, and the unipolar induction causes a hollow cylinder, which is a dielectric, to be placed in an axial magnetic field. Induced electromotive force is generated and polarization in the radial direction is formed and induced current flows. Induced electromotive force is induced when magnetic flux in the dielectric cylinder is φ and angular velocity of rotation axis is ω, and the voltage V = φω The principle that / 2π (MKSA unit system) is generated is used.

A fabric cover 12a is covered on the outside of the rubber tip 12, and the fabric cover 12a is pressed and fixed to a metal support tube 13 fitted to the outside of the rubber tip 12 and the coupling 11. .

The fabric cover 12a has a shape corresponding to the outer shape of the rubber tip 12 and is covered on the outside and tightly fixed to the rubber tip 12 by a metal support tube 13 fitted together.

In the present invention, mainly nylon (nylon) or silk (silk) is used, but it is preferable to use a silk (silk) is a low drag coefficient smoothly.

The fabric cover 12a prevents abrasion of the rubber tip 12 in contact with the screen and moves the touch pen 1 smoothly as it slides when the screen is dragged, which is very convenient and efficient and convenient in operation. It can raise.

The rubber tip 12 is formed in a hemispherical shape (공간 球形) is formed inside the space portion, the elastic support 14 is inserted into the inner space portion of the rubber tip 12 is elastic the inside of the rubber tip 12 Constructed to support

The elastic support 14 is composed of a sponge, soft rubber and the like excellent in elasticity and cushioning force to stably support the inside of the hemispherical rubber tip 12 to prevent the closed end of the deformation.

Therefore, the closed end of the hemispherical rubber tip 12 is severely deformed by the elastic support 14 is prevented, and rapid restoration is performed, so that the touch and drag operation is accurately performed on the screen, and the rubber tip is damaged. It can effectively prevent high quality and high-performance touch pen.

On the other hand, when the support tube 13 is fitted in the state in which the rubber tip 12 is coupled to the metal coupling 11, the inside of the rubber tip 12 is sealed to the rubber tip 12 by the elasticity of the sealed air It is configured to be elastically restored when it is pressed.

However, in some cases, when the vertical flow hole 11a is formed in the coupling 11 to allow air to flow into the inner space of the rubber tip 12, the elastic support 14 of the elastic support 14 is pressed when the rubber tip 12 is pressed. When the rubber tip 12 is restored to its original shape by the restoring force, air may be introduced through the external flow hole 11a to quickly restore the rubber tip 12.

The touch pen 1 according to the present invention can be applied to a writing instrument 2 such as a mechanical pencil 2a, a ballpoint pen 2b, or an aqueous pen, as shown in Figs. 5A to 5C.

That is, the metal support tube 13 is coupled to the shaft 20 in which the pencil core is embedded or ink is injected into the body 10 of the writing instrument 2, and the coupling 11 and the rubber tip are supported on the support tube 13. 12 is combined to use the touch pen 1 as a writing instrument (2).

When the shaft 20 is pushed and lifted, such as a pencil 2a or a ball pen 2b, the rubber tip 12 and the support tube 13 serve as a knob, and the tip of a pencil lead or a ball pen penetrates. When the rubber tip 12 comes into contact with the screen when used as the touch pen 1, the metal support tube 13 contacts the internal dielectric film 10a of the body 10 to generate electric charges, thereby causing a change in capacitance. You can operate the touch screen.

According to the present invention having the above-described configuration, not only the deformation of the rubber tip 12 is minimized by the elastic support 14 inserted into the rubber tip 12, but the rubber tip 12 is pressed on the touch screen. Even if the body 10 is made by a dielectric film 10a coated on the inside of the body 10 while at the same time implementing a high quality and high-performance touch pen which is very convenient in use and smooth in dragging operation due to its rapid restoration. ) Is made of synthetic resin or wood, so it is possible to detect the change in capacitance, so it is possible to produce products that can be printed in various ways, to satisfy the purchasing needs of modern consumers who pursue the variety and uniqueness of design. There is such an advantage that it can provide a touch pen.

In particular, since the body 10 of the touch pen does not have to be formed of metal, the manufacturing cost is kept low and can be easily applied to existing writing instruments, which can be used in various ways to maximize the external competitiveness of the capacitive touch pen. It can be.

In addition, the fabric cover 12a which is covered on the outside of the rubber tip 12 minimizes the wear of the rubber tip 12 in contact with the screen, and the touch pen 1 operates smoothly as if the screen is dragged. It is possible to provide a high quality and high-performance touch pen that is very easy to use and smoothly drags.

On the other hand, the dielectric film 10a coated on the inside of the body 10 can be formed in various ways, but as shown in FIG. 6, it can be achieved by a device for painting the inside of the touch pen body. Can be.

That is, as shown in FIG. 6, a vertical discharge hole 31a is drilled in a jig fixed to the work table 30, and a body 10 formed of a tube is fitted around the discharge hole 31a to be detachable. To the upper inlet of the body 10 is coupled to the cylinder 32 is coupled to the conductive pigment 34 is injected through the nozzle hole 32a which is drilled in the lower portion of the cylinder 32, the injected conductive pigment 34 ) Is applied to the inside of the body 10 to form a thin dielectric film 10a, and the lower portion of the jig 31 is coupled with a hose 35 to store the conductive pigment 34 that flows down after the coating operation. It is comprised so that the container 36 may be discharged | emitted.

In the method of spraying the conductive pigment 34 injected into the cylinder 32 of the painting apparatus, as shown in FIG. 7B, when the piston 33 is inserted into the cylinder 32 to apply pressure, the cylinder 32 is lowered. The conductive pigment 34 is injected through the nozzle hole 32a of the nozzle, or the nozzle is penetrated through the lower portion of the cylinder 32 by using compressed air of an air compressor (not shown) as shown in FIG. 7C ( It consists of a system spraying through the micropores of 32b).

The conductive pigment 34 sprayed from the cylinder 32 is applied to the inside of the body 10 to form a dielectric film 10a, and the conductive pigment 34 flowing down after the work is connected to the hose 35. Through the storage container 36 is discharged.

Subsequently, after the post-treatment process of maintaining the thickness of the dielectric film 10a evenly by injecting the compressed air of the air compressor into the body 10 and drying it, the thickness of the dielectric film 10a is kept constant and the surface is dried. It can keep the flat.

As described above, when the conductive pigment 34 is applied to the inside of the body 10, the external appearance of the touch pen is not affected, and thus, compared to applying the pigment to the outside of the body 10, the operation is not difficult and the defect rate is zero ( Because it is zeroed, it is possible to increase work efficiency and productivity.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be resorted to without departing from the scope of the appended claims.

1: touch pen 2: writing instruments
2a: mechanical pencil 2b: ballpoint pen
10 body 10a dielectric film
11: coupling 11a: distribution hole
12: rubber tip 12a: fabric cover
13 support tube 14 elastic support
20: axis 30: worktable
31: jig 31a: discharge hole
32: cylinder 32a: nozzle hole
32b: nozzle 33: piston
34: conductive pigment 35: hose
36: storage container

Claims (3)

In the capacitive touch pen 1, in which a metal coupling 11 is coupled to a body 10 composed of a pipe, and a conductive rubber tip 12 is coupled to a coupling 11,
In the interior of the body 10 made of a non-conductive material, a dielectric film 10a formed by coating a liquid conductive material and curing is formed, and the fabric cover 12a is covered on the outside of the rubber tip 12. The metal support tube 13 is fitted to the outside of the rubber tip 12 and the coupling 11 so that the fabric cover 12a is fixed, and the elastic support 14 is inserted into the inner space of the rubber tip 12 so that the rubber Capacitive touch pen, characterized in that to support the inside of the tip 12 elasticity.
The method of claim 1,
The metal support tube 13 is coupled to the shaft 20 of the writing instrument 2 inserted into the body 10, and the coupling 11 and the rubber tip 12 are coupled to the support tube 13 to write the instrument. (2) It is used as a combined, the capacitive touch pen, characterized in that the vertical flow hole (11a) is formed in the coupling (11) to allow air to flow to the inner space of the rubber tip (12).
A vertical discharge hole 31a is drilled in the jig 31 fixed to the work table 30, and a body 10 composed of a tube is fitted around the discharge hole 31a to be detachably coupled to each other. At the upper inlet, the cylinder 32 is coupled, and the conductive pigment 34 is sprayed through the nozzle hole 32a drilled in the lower portion of the cylinder 32, and the sprayed conductive pigment 34 is injected into the body 10. It is applied to form a thin dielectric film (10a), the lower portion of the jig 31 is coupled to the hose 35, the conductive pigment 34 flowed down after the coating (34 布) is discharged to the storage container 36,
The injection of the conductive pigment 34 injected into the cylinder 32 is performed by inserting a piston 33 into the cylinder 32 to apply pressure to the conductive pigment 34 through the nozzle hole 32a in the lower portion of the cylinder 32. ) Or spraying through the fine pores of the nozzle (32b) penetrated through the lower portion of the cylinder (32) by using compressed air.

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