KR101646394B1 - Ball pen for underlining - Google Patents

Abstract

The present invention relates to a writing instrument in which a straight line is underlined, a writing instrument having a uniformly underlined line according to the present invention includes a writing instrument core space in the inside of the writing instrument, an opening on an upper surface thereof, A lower body portion having an upper end coupled to a lower end portion of the upper body portion and extending in a vertical direction, a lower body portion inserted in the core space of the line drawing writing instrument and extending in the vertical direction and spaced apart from a bottom portion of the upper body portion, And a writing tip hole is formed on the upper surface of the writing instrument tip, and a pipe shape is formed through the writing tip of the writing instrument, The degree of inserting into the upper portion of the writing instrument core space and inserted into the padding core space of the line drawing And a guide wheel rotatably coupled to an upper outer side surface of the lid portion protruding upward from the upper body portion, wherein the lid portion includes a lid portion provided to be adjustable, When the writing tip of the ballpoint pen tip for a stripe is protruded to the outside of the lid portion and the guide wheel is moved in a straight line direction against the paper, the writing tip of the pen tip for the line drawing touches the paper, .

Description

{BALL PEN FOR UNDERLINING}

The present invention relates to a writing instrument in which a straight line is underlined, and more particularly, a device integrally formed with a ballpoint pen is provided, so that an underline can be easily drawn without cutting, and a straight line underlining excellent in workability, marketability, And the like.

Traditionally, when you draw a line, you have to draw a line by drawing a ruler or connecting another device to the pen.

In the conventional method as described above, in order to draw a line during handwriting, the user draws a line by drawing a ruler or joining another device to the pen, draws a line, There is a problem in that when the flip is necessary, the flipper can not be seen by the combined tool.

Korean Utility Model Registration No. 0460052

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems of the conventional art, and it is an object of the present invention to provide a writing instrument in which a straight line underlining can be easily and quickly used, The purpose is to do.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a writing instrument comprising a writing instrument having a penholder core space for inserting a writing instrument therein, an upper body having an opening at an upper surface thereof, A lower body portion coupled to a lower end portion of the upper body portion and extending in a vertical direction, a lower body portion inserted in the core space of the line drawing pen and extending in the vertical direction, and a lower end positioned apart from the bottom portion of the upper body portion, A writing tip having a writing tip disposed at an upper end thereof and a writing tip hole formed at an upper surface thereof and having a pipe shape penetrating through the writing writing instrument shim and a part of which is inserted through the doorway into the upper And is inserted into the shim writing tool core space to adjust the degree of insertion And a guide wheel rotatably coupled to an upper outer side surface of the lid part protruding upward from the upper body part, wherein the lid part is formed in the shim writing tool core space When the writing tip of the ballpoint pen tip of the line drawing extends out of the lid portion and moves the guide wheel in a straight line direction against the paper, the writing tip of the pen tip for drawing the line also touches the paper, do.

The upper end of the lid portion and the upper end of the lid portion are provided with a spring supporting portion in which a hole penetrating by the pen tip of the writing instrument is formed at the central portion and the edge portion is engaged with the inner circumferential surface of the upper body portion, And an upper spring which is tilted between the lower surface of the periphery of the writing tip hole and the engaging projection of the lid part and a lower spring which is interposed between the engaging projection and the spring supporting part As shown in FIG.

In addition, a portion of the writing tool shaft that is laterally spaced downward from the writing tip is provided with a latching protrusion protruded sideways, and between the lower surface of the periphery of the writing tip hole and the latching protrusion, And a lower spring projecting between a lower surface of the receiving portion and a bottom portion of the upper body portion, and a lower spring projecting upward from the lower surface of the upper body portion, .

In addition, a hooking hole is formed in the side surface of the upper body part, and a hooking protrusion protruding outwardly is formed integrally with the lower end of the lid part in a downward direction and is inserted into the hooking hole in a vertical direction And the lid part may be configured to be restricted by the upper body part when the latching jaw reaches the upper end of the latching hole to restrict upward movement of the latch body.

In addition, the upper body portion may have upper and lower engagement openings formed in the upper and lower sides thereof with a gap therebetween. The upper and lower engagement portions may be engaged with the lower end of the lid portion so as to extend downward and elastically move inwardly and outwardly. And a lower stopper protruding outwardly to penetrate through the lower stopper hole and integrally formed with the upper stopper protruding outwardly so as to be spaced above the lower stopper stopper, And the lid part is positioned at the upper end of the lower latching hole so as to be caught by the upper body part when the lower latching jaw reaches the lower end of the lower latching hole The upward movement is restricted, and the lower jaw is pushed outside so that the upper jaw When the hooking member is lifted, the upper stopping jaw is inserted into the upper stopping hole, and the lower stopping jaw reaches and reaches the upper end of the lower stopping hole.

The lid part is provided with a lid-shaped lid protruding outwardly. The inner circumferential surface of the upper body part is provided with a pair of upper and lower annular protrusions protruding inwardly, The lid part jaw and the body part jaw are provided with a ring-shaped movement restricting jaw protruding inwardly at a lower part than the lower part of the body part jaw, And the movement restricting jaw is processed so as to prevent the jaw of the lid from riding on the body part, wherein the movement restricting jaw is provided between the lower part of the body part jaw and the movement restricting jaw When the jaw of the lid is fitted, the position of the lid is fixed with the writing tip protruding to the outside .

In addition, a hooking hole is formed in the side surface of the upper body part, and a hooking protrusion protruding outwardly is formed integrally with the lower end of the lid part in a downward direction and is inserted into the hooking hole in a vertical direction Wherein the lid part is configured to be hindered by the upper body part when the latching jaw reaches the upper end of the latching hole so as to restrict upward movement of the lid part, and the lower end part of the lid part has a ring- And an inner circumferential surface of the upper body portion is provided with a ring-shaped movement restricting jaw protruding inwardly from the inner circumferential surface of the body portion jaw and the lower portion of the lower body portion, And when a force of at least a predetermined magnitude is applied to the jaws of the lid portion and the body portion jaws, The lid part is rounded to allow the lid to move over the body part jaw and the movement restricting jaw is sharpened to prevent the jaw part of the lid from riding over the body part, And the position of the lid part is fixed with the writing tip protruding to the outside when the side jaw is fitted.

In addition, the upper body portion may have upper and lower engagement openings formed in the upper and lower sides thereof with a gap therebetween. The upper and lower engagement portions may be engaged with the lower end of the lid portion so as to extend downward and elastically move inwardly and outwardly. Further comprising a latching member integrally formed with the latching protrusion protruding outward so as to move upwardly and downwardly while being inserted into the upper latching hole or inserted in the lower latching hole so as to fix the upward and downward movement, The lid part is located at the upper or lower end of the upper latching hole when the latching jaw moves within the upper latching hole and reaches the upper or lower end of the upper latching hole so that the latching jaw is caught by the upper body part, And the engagement jaw is pushed outwardly from the upper body If it is eliminated when applied to the engaging member is further lowered, and this enables the locking step is inserted into the lower retaining hole it may be configured so that vertical movement is prevented.

The guide wheels may have a conical shape or a conical shape, and a pair of the guide wheels may be inclined downward while the rotation axis of the guide wheels is outward, so that the oblique side of the guide wheels rolls close to the floor.

In addition, the shoelace writing tool shoe may be a ballpoint pen.

In addition, the shovel writing implement shim may be configured such that the writing tip hole is automatically clogged when the writing tip of the shriveling writing implement shim enters the inside of the lid.

In addition, the line-drawing writing implement shims may be installed adjacent to each other in the left-right direction.

As described above, according to the writing instrument according to the present invention, the ballpoint pen is provided on both sides, one side is used for writing, and the other side is provided with a wheel on the lid. , The straight line can be cleaned without inconvenience, so that important contents can be accurately conveyed in the head, and all people who need to draw a straight line in a straight line can conveniently use it.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A and FIG. 1B are perspective views showing a writing implement in which a straight line is drawn underlined according to an embodiment of the present invention;
FIG. 2 is a perspective view illustrating a ballpoint pen adjuster of a writing implement in which a straight line underlines according to the first embodiment of the present invention. FIG.
FIG. 3 is a cross-sectional view of a ballpoint pen adjuster of a writing implement in which a straight line underlines according to a second embodiment of the present invention. FIG.
FIG. 4 is a cross-sectional view of a ballpoint pen adjuster of a writing implement in which a straight line underlines according to a third embodiment of the present invention. FIG.
FIG. 5 is a cross-sectional view illustrating a ballpoint pen adjuster of a writing implement in which a straight line underlines according to a fourth embodiment of the present invention. FIG.
6 is a cross-sectional view of a ballpoint pen adjuster of a writing implement in which a straight line underlines according to a fifth embodiment of the present invention.
7 is a cross-sectional view of a ballpoint pen adjuster of a writing implement in which a straight line is underlined according to a sixth embodiment of the present invention.
FIG. 8 is a cross-sectional view illustrating a ballpoint pen adjuster of a writing implement in which a straight line underlines according to a seventh embodiment of the present invention. FIG.
9 is a cross-sectional view showing a ballpoint pen adjuster of a writing implement in which a straight line underlines according to an eighth embodiment of the present invention.

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

1A and 1B are perspective views illustrating a writing implement in which a straight line is drawn under the present invention.

The writing implement having a straight line underlined by the present invention includes an upper body portion 100, a lower body portion 200, a main writing instrument core 300, a line writing instrument core 400, a lid portion 500, a guide wheel 600 A wheel shaft 610, a spring 700, an engaging member 800, and a ballpoint pen shim regulator 900.

The upper body part 100 and the lower body part 200 are connected in series up and down to form one long straight body.

The upper body part 100 and the lower body part 200 are hollow pipe-shaped bodies each having an inner space of the upper body part 100 and an inner space of the lower body part 200, And is partitioned by the bottom portion 130.

The lower portion of the lower body 200 is detachably coupled to the lower portion of the lower body 200. The lower end of the lower body 200 becomes narrower as it goes down, A hole is formed so that the lower end of the guide hole can be pulled out or inserted.

A main writing instrument core 300 which is a typical ballpoint pen is installed in the lower body part 200 and a portion protruding from the lower part of the main writing instrument core 300 among the inside of the lower body part 200 and a part protruding from the lower body part 200 And a ballpoint pen adjuster 900 as shown in FIG. 2 in which the lower end of the ballpoint pen adjuster 900 is in contact with the upper end of the main writing instrument core 300 is installed in the upper portion of the lower body 200.

Two holes are formed on the top surface of the lower body part 200 in the up and down direction and two protrusions protruding in the lateral direction of the ballpoint pen adjuster 900 are provided upward and downward and protrusions of the ballpoint pen adjuster 900 are provided Is configured to be able to move elastically in and out. When the lower protrusion of the ballpoint pen adjuster 900 is fitted into the lower hole of the lower body 200 and the upper protrusion of the ballpoint pen adjuster 900 is inserted into the upper hole of the lower body 200, The inner elastic body pushes up the main writing instrument core 300 so that the entire main writing instrument core 300 enters the inside of the lower body part 200. As a result,

The lower protrusion of the ballpoint pen shim adjuster 900 protruding in the lateral direction of the lower body 200 of the ballpoint pen shim adjuster 900 is pressed down so that both the lower protrusion and the upper protrusion of the ballpoint pen shim adjuster 900 are pressed downward, The ballpoint pen tip adjuster 900 is hooked down while the pen tip is inserted into the lower hole of the pen tip 200 so that the main pen tip core 300 is lowered so that the lower end of the main pen tip core 300 is inserted into the lower body portion 200 ) To be able to write out.

The configuration of the writing instrument including the lower body 200 and the main writing instrument shim 300 as described above is basically the same as that of the conventional tongue ball pen which has been widely used in the prior art, and thus the detailed description thereof will be omitted.

The configuration of the writing instrument including the lower body part 200 and the main writing instrument shim 300 in the present invention is not limited to the above-described tie ball pen, but may be a pen, a pencil, or the like instead of a ballpoint pen.

The configuration including the upper body part 100, the line drawing pen shim 400, the lid part 500, the guide wheel 600 and the like is a configuration of a writing instrument for line drawing, The upper main body part 100 is lowered and the lower main body part 200 is turned upside down while writing with the main writing tool core 300 in a state where the upper main body part 100 is up.

As shown in FIGS. 2 to 9, the upper body 100 is a circular pipe-shaped member having an upper surface opened and a writing pen core space 110 inside the lid 500, A writing tip hole 510 is formed in the upper body part 100 and an inner space communicating with the lower surface of the lower part is opened and at least part of the upper body part 100 is inserted through the upper surface hole.

When the pen tip is not used, the pen tip 400 is provided in the pen tip space 110 and the inner space of the cap 500. When the guide wheel 600 is pressed against the surface of the pen, The writing tip 420 is configured to be pulled out through the writing tip hole 510 when the writing tip 420 enters the writing tool core space 110 of the line drawing.

Fig. 2 shows a first embodiment.

In the present embodiment, the spring supporting portion 140 is provided at a portion spaced upward by a certain distance from the bottom portion 130 of the inside of the upper body portion 100. The spring support portion 140 is a ring-shaped member having a hole formed therethrough by the writing tool shim 400 and the edge portion of the spring supporting portion 140 is engaged with the inner peripheral surface of the upper body portion 100.

In this embodiment, latching protrusions 430 are provided on both sides of a portion spaced a certain distance downward from the writing tip of the writing tool shim 400, and an upper spring 700a in a coil- The upper end of the lower spring 700b is inserted through the padding 400 and the lower end of the lower spring 700b contacts with the upper end of the lid 500 to be compressed when the lid 500 is lowered. And the lower end thereof is brought into contact with the bottom portion 130 to be compressed when the lid 500 is lowered. The latch protrusion 430 and the lower spring 700b are for preventing the pen tip 400 of the line drawing from being wedged toward the bottom 130. The latch protrusion 430 and the upper spring 700a So as to prevent the writing instrument shim 400 from escaping to the outside.

The lower end of the line drawing pen shim 400 should be configured so that it does not touch the bottom portion 130 even if the lid portion 500 is pressed down. When the lower end of the line drawing pen shim 400 touches the bottom portion 130, the line drawing pen shim 400 is fixed. Since only the lid portion 500 moves elastically, the guide wheel 600 has a small contact force So that it is possible to reduce the effect of straightening the line.

Fig. 3 shows a second embodiment.

An upper spring 700a is provided between the upper end surface of the lid part 500 and the engaging protrusions 430 formed on both sides of a portion spaced a certain distance downward from the writing tip of the writing pen tip shim 400 And a support portion 710 supported by the lower spring 700b. The lower spring 700b is provided with a lower surface of the receiving part 710 and a lower surface of the upper body part 710. The upper part of the upper part of the receiving part 710 is provided with an engaging projection 720, Is buried between the bottoms (130) of the main body (100).

In the present embodiment, the writing implement's padding 400 is not in contact with the bottom portion 130 by the lower spring 700b and the lower end hole of the writing pen's padding 400 is engaged with the coupling protrusions 720 It does not fall outside.

In the case where there are two writing implement shims 400 as in the eighth embodiment shown in FIG. 9, two coupling protrusions 720 should be provided at left and right intervals.

In the first and second embodiments described above, in the two embodiments in which the line-drawing writing implement shim 400 is resiliently supported so as not to touch the bottom portion 130 by a spring, but is installed so as not to fall outward, The third to seventh embodiments to be described below are five embodiments related to the lid part 500 not to be pulled out and the lid part 500 to be moved up or down and the first and second embodiments Since all of the third to seventh embodiments can be applied and two embodiments can be combined with five embodiments, ten combinations can be derived by all of the first to seventh embodiments.

4 is a perspective view of a third embodiment of the present invention. The upper body portion 100 has a rectangular elongated latching hole 120 formed on the side surface thereof. The latching jaw 810 of the latching member 800 is inserted into the latching hole 120 in the vertical direction while passing through the latching hole 120.

The engaging member 800 is a thin member extending downwardly from the lower end of the lid 500. The lower portion of the engaging member 800 can move elastically laterally, The engaging protrusion 810 is formed to protrude from the lower end of the lower end portion,

When the lid 500 is lifted and the upper end bent at the right angle of the latching jaw 810 is abutted against the upper edge of the latching hole 120 and the lid 500 can not be lifted up, Does not come off from the upper body portion 100. However, if the lid part 500 is pulled out in a state in which the latching jaw 810 is pushed inward into the upper body part 100 with a pointed object, the lid part 500 can be detached, Can also be replaced.

The wheel shafts 610 are coupled to the opposite sides of the upper side of the lid part 500, respectively. At this time, the two wheel shafts 610 are inclined at an angle. At the end of the wheel shaft 610, a guide wheel 600 is rotatably coupled.

The guiding wheel 600 is constructed such that the end of the writing instrument mouthpiece 400 can touch the ground when the lid 500 moves a predetermined distance with the guide wheel 600 on the ground.

If the guide wheel 600 is made of any material, the guide wheel 600 slips and can not be drawn straight. The reason why the guide wheel 600 can be linearly rolled is that the wheel material is made of a rubber material having high friction, the shallow grooves are formed in the wheel so that the wheel is like a toothed wheel so as to increase friction with the paper, Adjusting the elasticity of the spring so that friction between the paper and the wheel is increased in the process of giving a force to lower the wheeled lid so that the ballpoint pen is exposed, not fixing the wheel to the left or right, And that the center of the ballpoint pen touches the paper and draws the center in the process of drawing.

However, as shown in FIG. 1, the most effective method is that the axis of the guide wheel 600 tilts downward as it goes outward, and the guide wheel 600 is perpendicular to the wheel shaft 610, The guide wheel 600 is installed so that one side is assembled and the other side is opened.

The guide wheel 600 has a conical or conical shape and is configured such that a pair of wheel shafts 610 are inclined downward toward the outside so that the oblique side of the guide wheel 600 rolls close to the floor. As a result, the pair of guide wheels 600 can be straightened more linearly.

Fig. 5 shows a fourth embodiment.

The present embodiment is different from the third embodiment in that two hooks are provided upward and downward, and the upper hooking hole 120a and the lower hooking hole 120b are provided, and two hooking jaws are provided upward and downward so that the upper hooking jaw 810a And a lower latching jaw 810b is provided.

When the upper latching jaw 810a is inserted into the upper latching hole 120a and the lower latching jaw 810b is inserted into the lower latching hole 120b, the lid 500 is pulled out and the entire writing- When the upper latching jaw 810a and the lower latching jaw 810b are both inserted into the lower latching hole 120b and the lid part 500 is inserted into the upper body part 100, And the padding 400 is fixed in a state where the end of the padding 400 exits to the outside of the lid part 500. Such a structure is the same as that of a conventional tie-ball pen, and a detailed description thereof will be omitted.

Therefore, in this embodiment, since the vertical movement is fixed in the state where the writing tip 420 is extracted or inserted, it is not necessary to apply a pressing force to the guide wheel 600 against the ground when the underline is drawn.

6 shows a fifth embodiment.

In this embodiment, unlike the third and fourth embodiments, the latching member 800 and the latching jaws 810a and 810b do not exist. Instead, the lid unit jaw 520, the body jaw 150, (Not shown).

An annular lid portion protrusion 520 protruding outward is provided at a lower end of the lid portion 500. An annular body portion protrusion 150 protruding inward is formed on an inner circumferential surface of the upper body portion 100, And an annular movement restricting protrusion 160 protruding inwardly is provided on the inner circumferential surface of the upper body part 100 at a distance lower than the lower part of the body part jaws 150, When the jaw 520 and the body part jaw 150 are subjected to a force of a predetermined magnitude or more, the lid part jaw 520 is rounded to move over the body part jaw 150, When the lid portion jaws 520 are inserted between the lower portion of the body portion jaws 150 and the movement restricting jaws 160, the writing tip 420 is moved outward So that the position of the lid part 500 is fixed. That is, when the lid part 500 is located between the pair of body part jaws 150, the lid part 500 can move up and down, and the force to press the guide wheel 600 against the ground When the lid part jaws 520 are inserted between the lower part of the body part jaws 150 and the movement restricting jaws 160, they are fixed so as not to move up and down so that the guide wheels 600 It is not necessary to apply a pressing force to the ground.

FIG. 7 shows the sixth embodiment. It can be said that the third embodiment and the fifth embodiment are added together, and then the upper part of the body part jaws 150 is removed. That is, the lid part 500 is fixed using the fact that the lid part jaw 520 is fitted in the body part jaw 150 and the movement restricting part 160, And the engaging jaw 810 are used.

Fig. 8 shows a seventh embodiment.

In the present embodiment, the upper body portion 100 is provided with an upper latching hole 120a having a rectangular shape elongated in the vertical direction and a lower latching hole 120b having a narrow vertical length, (Not shown in the drawing). The upper end of the upper hooking hole 120a is connected to the upper end of the lower hooking hole 120b, And an engagement protrusion 810 protruding outward so as to fix the movement in the up and down direction is integrally formed.

The lid part 500 moves to the upper or lower end of the upper latching hole 120a when the latching jaw 810 moves within the upper latching hole 120a and the latching jaw 810 reaches the upper end of the upper latching hole 120a Or the lower end of the upper body part 100 and is restricted by the upper body part 100 so that the upward or downward movement is restricted and when the engagement protrusion 810 is prevented from being caught by the upper body part 100, So that the member 800 can be further lowered and the engagement protrusion 810 is inserted into the lower engagement hole 120b.

That is, since both the upper and lower surfaces of the latching jaw 810 are angled, when the lid 500 with the wheels is pressed against the ground, the latching jaws 810 descend along the rectangular upper holding hole 120a, If it is lowered by a predetermined amount, it is clogged at the end of the upper latching hole 120a and does not go down any more. So, if the writing stem is removed from the ground again, it will be restored to its original position by the spring. When the user pushes down the lid part 500 with the wheel while pressing the latching jaw 810 protruding by using the hand, the latching jaw 810 is inserted into the lower rectangular latching hole 120b Even if the writing tool is fixed and the writing tool is dropped from the ground, the writing tool is out of the original state without returning to the original position.

The basic operation of the present invention will be described as follows.

The lower body portion 200 and the main writing instrument core 300 are used as a conventional tie ball pen while the upper body portion 100 is turned upside down and the guide wheel 600 is turned upside down, The lid 500 coupled to the wheel shaft 610 is lifted up to expose the end of the writing instrument core 400 and grasps the upper body 100 in a state in which the end of the writing pen core 400 is in contact with the ground surface As the pair of guide wheels 600 rolls, the writing instrument shim 400 for line drawing moves linearly and underlines a straight line.

When the force of depressing the guide wheel 600 is removed after the underside is drawn, the lid part 500 is restored by the returning force of the spring and the end of the writing instrument mouthpiece 400 is inserted into the lid part 500.

FIG. 9 is a sectional view showing a writing instrument in which an underlined line is drawn according to an eighth embodiment of the present invention. FIG.

The present embodiment is different from the above embodiment in that two writing piercing shims 400 having different colors are arranged next to each other in a neighborhood.

In this embodiment, two end portions of the line-drawing writing implement shim 400 may be exposed at the same time so that one of the two line-drawing writing-portion shims 400 can be drawn along the tilting direction of the upper body portion 100 .

It is needless to say that the writing instrument shim 400 for line drawing may be a highlighter instead of a ballpoint pen. Since the tip of the highlighter is exposed to the outside atmosphere for a long time, it has recently been developed and used as a knock type highlighter. In other words, usually a highlighter is inserted and the entrance is blocked. Once the door is opened, the highlighter is released And once it is pressed again, the entrance of the highlighter is closed and the door is closed so that the lid of the highlighter is closed. Since the structure of such a knock type highlighter is a well-known conventional art, a detailed structure is disclosed in Korean public utility model 2013-0000228 and Korean official registration No. 0734903, It will be omitted.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as set forth in the accompanying drawings. And modifications are within the scope of the appended claims.

100: upper body part 110: writing tool for a line drawing space
120: latching hole 120a: upper latching hole
120b: lower latching hole 130:
140: spring support part 150: body part jaw
160: movement restricting jaw 200: lower body part
300: main writing instrument core 400: writing writing instrument core
420: writing tip 430: engaging projection
500: lid part 510: writing tip hole machine
520: lid part chin 600: guide wheel
610: Wheel axis 700a: Upper spring
700b: lower spring 710:
720: engaging projection 800: engaging member
810: Jaw 810a: Upper jaw
810b: lower latching jaw 900: ballpoint pen shim regulator

Claims (12)

An upper body portion in the form of a clogged tube having an inserting hole formed on an upper surface of the pen,
A lower body portion having an upper end coupled with a lower end of the upper body portion and extending in a vertical direction;
A writing tip provided with a writing tip provided at an upper end of the writing portion, the writing portion being inserted into the writing space of the writing tool and extending in the vertical direction, the lower portion being spaced apart from the bottom portion of the upper body;
A writing tip hole is formed on an upper surface of the writing instrument and a pipe shape is formed through the writing instrument shim and a part of the insertion hole is inserted into the upper portion of the stem space of the writing instrument through the doorway, A lid part provided so as to be adjustable; And
And a guide wheel rotatably coupled to an upper outer side surface of the lid part protruding upward from the upper body part,
When the lid part is inserted into the core space of the line drawing pen for a predetermined depth or more, the writing tip of the line-drawing ballpoint pen protrudes out of the lid part and moves the guide wheel in a straight direction against the paper, So that the underline can be drawn while moving while touching the bottom surface of the writing instrument. The method according to claim 1,
A spring support portion formed in the center of the upper body portion and having a hole penetrating through the pen tip of the writing instrument and having an edge portion engaged with the inner circumferential surface of the upper body portion,
A latch protrusion formed laterally protruding from a portion of the stem of the line drawing pen positioned between the upper end of the lid and the spring support portion,
An upper spring tacked between the lower surface of the periphery of the writing tip hole and the engaging projection; And
And a lower spring mounted between the latching protrusion and the spring support portion. The method according to claim 1,
And a latch projection protruding laterally from a portion of the pen tip that is spaced apart from the writing tip by a predetermined distance,
An upper spring tacked between the lower surface of the periphery of the writing tip hole and the engaging projection;
A support part protruding upward in the center of the upper surface and having a coupling protrusion fitted to the hole at the lower end of the writing instrument; And
And a lower spring mounted between a bottom surface of the receiving portion and a bottom portion of the upper body portion. 4. The method according to any one of claims 1 to 3,
A hooking hole is formed in a side surface of the upper body part,
And an engaging member which is integrally formed with the lower end of the lid and extends downwardly and has a lower end portion integrally formed with an engaging protrusion protruding outwardly in a state of being inserted into the engaging hole in an upward and downward direction,
Wherein the lid part is hooked on the upper body part when the latching jaw reaches the upper end of the latching hole, thereby restricting upward movement of the lid part. 4. The method according to any one of claims 1 to 3,
An upper holding hole and a lower holding hole are formed on the side surface of the upper body part with an interval in the vertical direction,
A lower portion of the lid which is engaged with a lower end of the lid portion and extends downward and is elastically movable inward and outward, and a lower end portion of the lower portion is vertically movably inserted into the lower latching hole, Further comprising an engaging member formed integrally with the engaging jaw and integrally formed with an upper engaging jaw protruding outwardly to be spaced above the lower engaging jaw,
The lid part is located at the upper end of the lower latching hole so that when the lower latching jaw reaches the lower end of the lower latching hole, the upper latching jaw is caught by the upper body part to restrict the upward movement, The upper jaw is inserted into and engaged with the upper jaw, and the lower jaw reaches the upper end of the lower jaw, so that the upper jaw is prevented from being caught by the upper body, Wherein the lower surface of the writing instrument is curved. 4. The method according to any one of claims 1 to 3,
And a lid part protruding outwardly is provided at a lower end of the lid part,
A pair of upper and lower pair of jaws of an annular shape protruding inward are provided on an inner peripheral surface of the upper body part,
Wherein an inner circumferential surface of the upper body portion is provided with a ring-shaped movement restricting jaw protruding inwardly and spaced downward from the lower portion of the body portion jaw,
The lid part jaw and the body part jaw are rounded so that the jaw of the lid part can move over the jaw part of the body when a force of a certain magnitude or more is applied,
The movement restricting jaw is mocked to prevent the jaw of the lid from riding over,
And the position of the lid part is fixed in a state in which the writing tip protrudes to the outside when the lid part jaw is fitted between the lower part of the body part jaw and the movement restricting jaw. . 4. The method according to any one of claims 1 to 3,
A hooking hole is formed in a side surface of the upper body part,
And an engaging member which is integrally formed with the lower end of the lid and extends downwardly and has a lower end portion integrally formed with an engaging protrusion protruding outwardly in a state of being inserted into the engaging hole in an upward and downward direction,
And the lid portion is configured to be restricted by the upper body portion when the latching jaw reaches the upper end of the latching hole,
And a lid part protruding outwardly is provided at a lower end of the lid part,
And an inner circumferential surface of the upper body portion is provided with an annular body portion protruding inwardly,
Wherein a ring-shaped movement restricting jaw protruding inwardly is provided on an inner circumferential surface of the upper body part with an interval downward from the body part jaw,
The lid part jaw and the body part jaw are rounded so that the jaw of the lid part can move over the jaw part of the body when a force of a certain magnitude or more is applied,
The movement restricting jaw is mocked to prevent the jaw of the lid from riding over,
And the position of the lid part is fixed in a state where the writing tip is protruded to the outside when the lid part jaw is fitted between the body part jaw and the movement restricting jaw. 4. The method according to any one of claims 1 to 3,
An upper holding hole and a lower holding hole are formed on the side surface of the upper body part with an interval in the vertical direction,
And a lower end portion of which is movable upward and downward in a state of being inserted into the upper retaining hole, and is movable upward and downward in a state of being inserted into the lower retaining hole, Further comprising an engaging member integrally formed with an engaging protrusion protruding outward so as to fix the movement of the engaging member
The lid part is located at the upper or lower end of the upper latching hole when the latching jaw moves within the upper latching hole and reaches the upper or lower end of the upper latching hole so that the latching jaw is caught by the upper body part, And when the latching jaw is prevented from being caught by the upper body portion by pressing the latching jaw from the outside, the latching member can be further lowered, and when the latching jaw is inserted into the lower latching hole, Wherein the lower surface of the writing instrument is formed with a straight line underlining. 4. The method according to any one of claims 1 to 3,
Wherein the guide wheels have a conical shape or a conical shape and are configured such that the rotation axis of the pair of guide wheels is inclined downwardly outwardly so that the oblique side of the guide wheels rolls close to the bottom. Writing instruments. 4. The method according to any one of claims 1 to 3,
Wherein the writing tool shoe is a ballpoint pen. 4. The method according to any one of claims 1 to 3,
Wherein the writing tip of the line drawing is a highlighter padding and the writing tip hole is automatically closed when the writing tip of the writing pen tip of the line drawing enters the inside of the lid portion. 4. The method according to any one of claims 1 to 3,
Wherein the line-drawing writing implement shims are installed adjacent to each other in a lateral direction.

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