KR200165413Y1 - Marker pen - Google Patents

Abstract

The present invention relates to a writing instrument for a blackboard, the tank 100, the front cap 110 formed on the front of the tank 100, the fixed tip 120 mounted on the front cap 110, and the front cover 130 In the writing utensils for the blackboard provided, the tank tank closure 140 formed on the rear of the tank (100); A cylindrical tube 101 provided in the tank 100; An ink inflow member 150 formed in the protrusion 141 of the tank cap 140 to allow ink to flow in from the outside; And a writing instrument for a blackboard, which is fitted inside the tube 101, has a vertical through hole 103a formed in a central portion thereof, is formed in a circumferential shape, and includes an ink-containing member 103 containing ink. It is a technical point. Therefore, when the ink in the tank 100 is exhausted, there is an advantage in that it is economical because the ink is supplied artificially from the outside. In addition, since the water-containing member 103 contains a predetermined amount of ink and then transfers it to the fixing tip 120 by osmotic pressure, unauthorized release of ink may be prevented.

Description

Writing pen for blackboard {marker pen}

The present invention relates to a writing instrument, and more particularly, to write or draw on a blackboard using a chalk colored marker pen on a coated blackboard having the same color as the chalk blackboard, without using chalk. , The writing and drawing relates to a writing instrument for the blackboard is easily erased.

In general, the most widely used writing implement for blackboards is chalk. The chalk is used in contact with the chalk board having a green or black color to form letters and pictures on the blackboard. However, the chalk is due to the nature of the dust is blown dust is harmful to the human body, such as can cause lung cancer, and even in the case of the chalk chalk is peeled off the lead is detected harmful to the human body.

As a substitute for the chalk board, a white board capable of using a water-based pen is used in parallel with the chalk board. As for the aqueous pen used for the said white board, black, blue, or red color is used normally. However, even in the case of the white board, stains remain when the aqueous pen is used for a long time, and there is inconvenience such as the need to use the stain after removing the stain. In addition, due to the nature of the color, white is not adapted to the field of view and causes eye fatigue when long-term attention is observed.

Therefore, conventionally, the color of the blackboard has the same color as that of the chalk blackboard, but on a blackboard coated with a certain component on the blackboard, that is, the writing surface itself does not absorb ink (hereinafter referred to as a coated blackboard). An aqueous marker pen is developed and used that is identical to the chalk color used.

The conventional aqueous marker pen is composed of a tank filled with ink, a flow tip for forming letters using the filling ink, and a flow tip adjusting device for controlling the flow of the flow tip.

The rear surface of the tank is sealed so that once the ink is filled, the ink cannot be replenished from the outside, and the ink filled in the tank by the flow tip is flown by the flow tip adjusting device to function on the flow tip. I figure is formed.

That is, when the user applies a predetermined pressure in the upper surface of the contact with the aqueous pen on the coating board, the flow tip is partially introduced into the inside and at the same time the ink filled in the tank is partially leaked to wet the flow tip. Therefore, when some of the ink is buried in the flow tip, and when the predetermined pressure applied to the flow tip is withdrawn, the flow tip partially protrudes to the outside and at the same time prevents the ink outflow. Accordingly, the aqueous marker pen user allows a text or a picture to be formed on the coated blackboard in such a manner that the ink functioning on the flow tip is buried on the coated blackboard.

However, the above aqueous marker pens have problems described below.

First, the ink-filled tank of the aqueous marker pen is impossible to refill the ink because it is configured in a sealed form with the outside.

Second, the ink filled in the tank is discharged to the outside of the aqueous marker pen by some damage of the flow tip adjusting device and ink dregs being caught by the flow tip and the flow tip adjusting device by the protruding protrusion and inflow of the flow tip. Problem occurs.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a writing instrument for a blackboard to make the ink replenishment inside the tank artificially from the outside.

And it is another object to provide a writing instrument for the blackboard which is provided with a water-containing member inside the tank, and the ink is discharged to the outside little by little if necessary, and writing is prevented.

1-perspective view of a writing instrument for a blackboard according to the present invention.

Figure 2-exploded perspective view of a writing instrument for a blackboard according to the present invention.

3 is an exploded perspective view of the ink inflow member;

Figure 4-State diagram of use showing refilling of ink.

≪ Explanation of symbols for main parts of drawings>

100 tank 101 tube

102: male thread 103: water-containing member

103a: through hole 103b: fine through hole

110: front cap 111: fixed tip coupling hole

112: coupling portion 120: fixed tip

130: front cover 140: tank cap

141: protrusion 142: ink inlet member engagement hole

150: ink inflow member 151: inflow hole

152: coupling member 153: coupling groove

154: retractable tip 160: ink reservoir

161: injection hole

According to the present invention for achieving the above object, in the writing instrument for the blackboard, the front cap formed on the front of the tank, the fixed tip mounted on the front cap, and the front cover, the opening and closing type formed on the rear of the tank Tank stopper; A cylindrical tube provided inside the tank; An ink inflow member formed in the protrusion of the tank cap to allow ink to flow in from the outside; The technical writing includes a writing instrument for a blackboard, which is fitted inside the tube, has a vertical through-hole formed in a central portion thereof, is formed in a circumferential shape, and includes an ink-containing member containing ink.

Here, the ink inlet member is formed on the rear portion, the coupling member is formed with a circular inlet hole; An annular coupling groove formed on a bottom surface of the coupling member and coupled to the tank stopper; It is formed in the front portion, it is composed of a retractable tip having an opening and closing groove communicating with the inlet; Preferably, the opening and closing groove is opened when the ink is introduced through the inflow hole, and the opening and closing groove is automatically closed when the ink is completed.

The tank stopper is preferably configured such that ink is introduced by opening the tank stopper.

It is also preferable that the ink inflow member is replenished with ink through an inflow hole formed in the ink inflow member.

Accordingly, it is possible to write on the coated blackboard having the same color as the chalk blackboard, to replenish ink, and to prevent unauthorized external leakage of ink.

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

1 is a perspective view of a writing instrument for a blackboard according to the present invention, Figure 2 is an exploded perspective view, Figure 3 is a perspective view of the ink inflow member, Figure 4 is a state diagram showing the refilling of the ink.

As shown, the writing instrument for the blackboard is largely composed of a tank 100, the front cap 110, the fixing tip 120, the front cover 130 and the tank cap 140.

First, the tank 100 will be described. The tank 100 has a cylindrical shape having an upper and lower openings, and a tube 101 to be described later is installed therein. And the outer thread surface is formed with a male thread 102 for coupling the tank stopper 140 to be described later.

On the other hand, the tube 101 is configured in a thin cylindrical shape with the upper and lower openings, and blocks the external heat using a material having excellent heat insulating properties. The functional member 103 described later is installed inside the tube 101. The outer circumferential surface of the tube 101 and the inner circumferential surface of the tank 100 are closely attached to each other. The water-containing member 103 is formed in a circumferential shape, the outer circumferential surface of the water-containing member 103 is installed in close contact with the inner circumferential surface of the tube 101 to prevent ink from flowing down along the inner circumferential surface of the tube 101 without permission.

The water member 103 has a through hole 103a of a predetermined size up and down in the center thereof, and flows directly through the through hole 103a to the fixing tip 120 to be described later. In addition, the water-containing member 103 is made of a material formed with a fine through hole 103b therein, ink is contained in the fine through hole 103b for a predetermined period of time to transfer the ink to the fixing tip 120 by a predetermined amount. It is preferable to use latex for the water-containing member 103, but it is also possible to use another material having excellent water functionality.

The front cap 110 is installed in the lower opening of the tank 100, the fixed tip coupling through hole 111 is provided in the center, the fixed tip 120 to be described later in the fixed tip coupling through hole 111 is installed do. And the annular coupling portion 112 is provided in the central portion is coupled to the front cover 130. The front cap 110 is a well-known technique having the same structure as the front cap used for a conventional marker pen, so a detailed description thereof will be omitted.

The fixing tip 120 is installed in the fixing tip coupling through-hole 111 of the front cap 110, is formed in a substantially cylindrical shape to absorb the ink by the upper end contacting the water-containing member 103 to the capillary phenomenon Thereby transferring the absorbent ink downward. And the material of the fixing tip 120 is formed of a material that can be formed micropores inside the ink for a predetermined time. That is, the fixing tip 120 is preferably made of an acrylic material in view of the fact that the land sugar (powder) is contained in the ink component, but may be composed of other materials. Do.

The front cover 130 is formed in a substantially cylindrical shape with an upper opening is coupled to the coupling portion 112 formed in the front cap 110 to seal the fixing tip 120 from the outside to prevent evaporation of ink. do. And when the front cover 130 is separated from the coupling portion 112 of the front cap 110, the loss is prevented by coupling to the rear protrusion 141 of the tank cap 140 to be described later. The front cover 130 is also a well-known technology, so a detailed description thereof will be omitted.

The tank stopper 140 is configured in a substantially cylindrical shape with a lower opening. An annular protrusion 141 is formed on the rear side so that the front cover 130 separated from the coupling portion 112 of the front cap 110 is coupled. And the inner circumferential surface of the opening is provided with a female thread (not shown) to seal the upper portion of the tank 100 by being combined with the male thread 102 formed in the tank 100.

Protruding portion 141 of the tank stopper 140 is provided with an ink inlet member coupling hole 142, the ink inlet member 150 to be described later is coupled to the ink inlet member coupling hole 142.

The ink inflow member 150 is formed in the rear portion, the coupling member 152 having a circular inflow hole 151 protrudes to the rear of the tank cap, and ink is injected from the outside through the inflow hole 151. do. And the middle portion is formed with an annular coupling groove 153 along the outer circumferential surface and the ink inlet member 150 is coupled by the ink inlet member coupling hole 142 formed in the coupling groove 153 and the tank cap 140 It is coupled to the tank stopper 140.

In addition, the front end portion of the ink inlet member 150 is formed with a retractable tip 154 having an opening and closing groove (not shown) formed in communication with the inlet hole 151 to protrude into the tank stopper 140. The opening / closing groove (not shown) formed in the opening / closing tip 154 is normally closed, and when ink is injected from the outside, it is opened by the ink injection pressure, and when the injection of the ink is completed, the seal is automatically closed to reverse the flow of ink. Is prevented.

The operational effect of the present invention by the above configuration will be described later.

When the user uses the writing instrument for a predetermined time or leaves the writing instrument for a predetermined period of time with the front cover 130 open, ink filled in the tank 100 of the writing instrument is evaporated through the fixing tip 120, and the fixing tip is fixed. Since supply of ink to the 120 is stopped, writing becomes impossible.

At this time, the user rotates the tank stopper 140 installed on the rear side of the tank 100 to separate it from the tank 100, and then supplies the required amount of ink to the tank 100 through the upper opening of the tank 100. Refill. Some of the refilled ink directly wets the fixing tip 120 through the through hole 103a formed at the center of the water member 103, and the other part is absorbed into the fine through hole 103b of the water member 103. . The ink absorbed in the fine through hole 103b is gradually absorbed by the fixing tip 120 by the osmotic action.

In addition, when it is cumbersome to separate the tank cap 140, the ink is refilled through the ink inflow member 150. The user couples the injection hole 161 formed at the end of the ink container 160 to the inlet hole 151 of the coupling member 152 formed in the ink inflow member 150. Then, when a predetermined pressure is applied to the ink reservoir 160, ink flows out and flows into the inflow hole 151 to open into the tank 100 through an opening and closing groove (not shown) in communication with the inflow hole 151. Inflow. When refilling of the ink is completed, the opening and closing groove is automatically sealed to prevent backflow of the ink. Some of the filled ink is contained in the water member 103 and some directly wet the fixing tip 120. Refilling of the ink is performed through the above process.

According to the present invention according to the above configuration, when the ink in the tank is depleted, it is possible to continuously use the writing instruments for the blackboard by refilling the ink by using the tank cap and the ink inflow member. It works.

And since the water-containing member contains a predetermined amount of ink and gradually transfers the ink to the fixing tip, there is also an effect of preventing unauthorized external leakage of the ink.

In addition, when the writing instrument is not used for a long time, the writing instrument and the ink storage container are stored while the ink is not injected, and when necessary, the writing instrument can be used by injecting ink.

Claims (4)

In the writing tool for a blackboard provided with a tank 100, a front cap 110 formed on the front of the tank 100, a fixing tip 120 mounted on the front cap 110, and the front cover 130, An openable tank stopper 140 formed at a rear surface of the tank 100; A cylindrical tube 101 provided in the tank 100; An ink inflow member 150 formed in the center of the tank cap 140 to allow ink to flow in from the outside; And The board 101 is inserted into the tube 101, the through-hole 103a in the longitudinal direction is formed in the central portion, is formed in a circumferential shape, and comprises an ink-containing member 103 containing ink Writing utensils. The method of claim 1, wherein the ink inlet member 150 A coupling member 152 formed on the rear surface and having a circular inlet hole 151 formed thereon; An annular coupling groove 153 formed on a lower surface of the coupling member 152 and coupled to the tank stopper 140; It is formed in the front portion, and consists of an opening and closing tip 154 having an opening and closing groove communicating with the inlet hole (151); When the ink flows through the inlet hole 151, the opening and closing groove is opened, the writing instrument for the blackboard, characterized in that the opening and closing groove is automatically closed when the ink is completed. The writing instrument for a blackboard according to claim 1, wherein the tank stopper (140) opens ink by opening the tank stopper (140). The writing instrument for a blackboard according to claim 1 or 2, wherein the ink inflow member (150) is supplemented with ink through an inflow hole (151) formed in the ink inflow member (150).