KR102432047B1 - Writing instrument for drawing desired lines - Google Patents

Abstract

The present invention relates to a writing instrument, and the writing instrument according to an embodiment of the present invention is inserted into one side of the body part through a body part, a writing part disposed at one end of the body part, and a first connecting pin, and is disposed between the writing part. A rotating part including a pair of wheels disposed on both sides of the first connecting pin to put it, a measuring part for measuring the movement distance of the body part based on the amount of rotation of the rotating part, and a measuring part disposed on one side of the body part to measure the measuring part It includes a movement distance display unit for displaying one movement distance.

Description

A writing instrument that can draw desired lines {WRITING INSTRUMENT FOR DRAWING DESIRED LINES}

The present invention relates to a writing instrument capable of drawing a desired line, and more particularly, to a writing instrument capable of easily drawing a straight line or a curve, measuring and displaying the length of a line, or measuring and displaying the length of another measurement object. .

Writing instruments refer to various types of objects used for writing, and collectively refer to ballpoint pens, pens, pencils, and sharpeners. Writing instruments are not only used to write letters and numbers, but also to draw straight lines or curves, or to draft specific figures.

In general, in order to draw a straight line of a certain length using a writing instrument, a ruler is placed on the ground and the line is drawn with a writing instrument up to a scale corresponding to a desired length.

Therefore, in order to draw a straight line while writing, there was the inconvenience of always finding and locating a ruler, and there was the inconvenience of not being able to draw a straight line if a ruler was not provided.

In addition, in order to draw a curve, a writing instrument was attached to a compass to draw a curve, or a curve was drawn by drawing without using a tool, and when a compass was not provided, it was difficult to draw a curve.

In addition, in order to measure the length of an arbitrary line or arbitrary object, use a ruler or a tape measure to align the scale of the ruler or tape measure to the starting point of the measurement object, and set the scale of the ruler or tape measure corresponding to the end point of the measurement object. should read

Accordingly, when measuring the length of an arbitrary line or object during writing, there is a problem in that the length cannot be easily measured if there is no tool such as a ruler or a tape measure.

The above-mentioned background art is technical information possessed by the inventor for the derivation of the present invention or acquired during the derivation of the present invention, and it cannot be said that it is necessarily a known technique disclosed to the general public prior to the filing of the present invention.

Registered Utility Model No. 20-0488015

SUMMARY OF THE INVENTION The present invention is to solve the above problems, and provides a writing instrument that can conveniently draw a straight line or a curved line to a desired length without any other special tools and can easily measure the length of any object.

However, these problems are exemplary, and the problems to be solved by the present invention are not limited thereto.

The writing instrument according to an embodiment of the present invention is inserted into one side of the body part through a body part, a writing part disposed at one end of the body part, and a first connection pin, and is disposed on both sides of the first connection pin so as to sandwich the writing part therebetween. A rotating part including a pair of wheels disposed on, a measuring part for measuring the moving distance of the body part based on the amount of rotation of the rotating part, and a moving distance disposed on one side of the body part to display the moving distance measured by the measuring part includes a display.

In the writing instrument according to an embodiment of the present invention, the pair of wheels may have the same camber angle.

In the writing instrument according to an embodiment of the present invention, the pair of wheels may have different camber angles.

In the writing instrument according to an embodiment of the present invention, the pair of wheels may have different diameters.

In the writing instrument according to an embodiment of the present invention, the measuring portion is parallel to the first connecting pin and disposed to be spaced apart from the body portion in the longitudinal direction, and one end is connected to the first connecting pin and the other end is connected to the first connecting pin. It may include a tape connected to the second connection pin, a scale marked on one surface, and wound around the first connection pin as the rotating part rotates.

In the writing instrument according to an embodiment of the present invention, the movement distance display unit may include a transparent plate disposed on one surface of the body portion and a marker disposed on the transparent plate.

In the writing instrument according to an embodiment of the present invention, the measuring unit calculates the number of revolutions of the wheel using a light emitting sensor disposed on at least one of the pair of wheels and a light receiving sensor disposed on an outer circumferential surface of the body portion, The moving distance of the body part may be measured based on the calculated number of rotations.

In the writing instrument according to an embodiment of the present invention, the movement distance display unit may display the measured movement distance on a liquid crystal plate disposed on one surface of the body portion.

In the writing instrument according to an embodiment of the present invention, the writing instrument may further include a position display unit disposed at one end of the body unit to indicate a point at which the measuring unit measures the moving distance of the body unit.

In the writing instrument according to an embodiment of the present invention, the position display unit may include a light emitting pointer for irradiating light.

In the writing instrument according to an embodiment of the present invention, the writing instrument may further include a nib pressing part disposed on the other end of the body part, and the position display part may include a needle protruding from the body part according to an operation of the nib pressing part.

Other aspects, features, and advantages other than those described above will become apparent from the following detailed description, claims and drawings for carrying out the invention.

Since the writing instrument according to an embodiment of the present invention includes a rotating part including wheels, it is possible to conveniently draw a straight line without using other special tools.

The writing instrument according to an embodiment of the present invention includes a movement distance display unit that measures and displays the movement distance of the body portion based on the rotation amount of the rotating portion, and includes a desired length, for example, a specific cm length, without using other special tools. You can draw straight lines conveniently.

In the writing instrument according to an embodiment of the present invention, by making the camber angles of the wheels different or the diameters of the wheels different from each other, it is possible to conveniently draw a curve without using other special tools.

The writing instrument according to an embodiment of the present invention further includes a position indicator, so that even when measuring the length of an arbitrary line or an arbitrary object without drawing a straight line, the length can be measured by visually recognizing the start and end points of the measurement. can

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 shows a writing instrument according to an embodiment of the present invention.
Figure 2 shows the camber angle of the rotating part according to an embodiment of the present invention.
3 shows a measurement unit and a movement distance display unit according to an embodiment of the present invention.
4 shows a measurement unit and a movement distance display unit according to another embodiment of the present invention.
5 shows a position display unit according to an embodiment of the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the description of the invention. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In the description of the present invention, even though shown in other embodiments, the same identification numbers are used for the same components.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and when described with reference to the drawings, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted. .

In the following embodiments, terms such as first, second, etc. are used for the purpose of distinguishing one component from another, not in a limiting sense.

In the following examples, the singular expression includes the plural expression unless the context clearly dictates otherwise.

In the following embodiments, terms such as include or have means that the features or components described in the specification are present, and the possibility that one or more other features or components may be added is not excluded in advance.

In the drawings, the size of the components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.

In the following embodiments, the x-axis, the y-axis, and the z-axis are not limited to three axes on the Cartesian coordinate system, and may be interpreted in a broad sense including them. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

Where certain embodiments are otherwise practicable, a specific process sequence may be performed different from the described sequence. For example, two processes described in succession may be performed substantially simultaneously, or may be performed in an order opposite to the order described.

The terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, a writing instrument 10 according to an embodiment of the present invention will be described with reference to FIG. 1 . 1 is a perspective view showing a writing instrument 10 according to an embodiment of the present invention.

1 and 3 , a writing instrument 10 according to an embodiment of the present invention includes a body part 100 , a writing part 200 , a rotation part 300 , a measurement part 400 , and a movement distance display part 500 . may include.

The body part 100 is a member that forms the outside of the writing instrument 10 , and forms a columnar body that is elongated in the longitudinal direction and has an empty interior. The body part 100 may be formed of plastic, but it is not excluded that it is formed of metal.

The body part 100 may be formed in the shape of a cylinder or a polygonal pillar such as a square pillar or a hexagonal pillar. The lower portion of the body portion 100 may have a shape that becomes narrower toward the lower side, and an opening through which the writing portion 200 may protrude may be formed at the lower end portion.

A mounting clip 110 capable of holding the writing instrument 10 in a shirt pocket or the like may be disposed on the upper portion of the body portion 100 . Alternatively, the body portion 100 and the mounting clip 110 may be integrally formed.

The writing unit 200 includes a writing lead 210 for taking notes, and is disposed inside the body unit 100 . As the writing lead 210 , all kinds of writing materials for writing, such as a felt pen, a colored pencil, a mechanical pencil, and preferably a ballpoint pen, may be selected.

The writing unit 200 may protrude through the opening of the body unit 100 so that the writing lead 210 can be positioned at one end of the body unit 100 . The writing unit 200 may be in a fixed state such that the writing lead 210 is positioned at one end of the body unit 100 through the opening of the body unit 100 .

Alternatively, when writing is not required, the writing lead 210 is located inside the body 100 and, only when writing is required, presses the nib pressing unit 700 disposed at the other end of the body 100 to press the body. The writing lead 210 may protrude through the opening of the unit 100 .

Accordingly, since the writing lead 210 protrudes, it is possible to prevent the pen case from being contaminated or the writing lead 210 from being damaged by the writing lead 210 when not writing.

A configuration in which the writing lead 210 protrudes or returns by pressing the nib pressing part 700 is similar to that of a generally known one-touch ballpoint pen, and thus a detailed description thereof will be omitted.

Also, the writing unit 200 may include a plurality of writing leads 210 , and the user may select and use a desired writing lead 210 from among the plurality of writing leads 210 .

The plurality of writing leads 210 may be writing leads 210 of different types of writing instruments such as ballpoint pens, sign pens, and pencils. It may be a shim 210 . As for the number of writing leads 210 , an appropriate number of writing leads 210 may be selected in consideration of the internal space of the body part 100 .

The rotating part 300 is disposed on one side of the body part 100 and rotates in contact with the ground to move the body part 100 along the ground. Specifically, as long as the rotating part 300 is inserted into one side of the body part 100 through the first connection pin 310 and is disposed on both sides of the first connection pin 310 to sandwich the writing part 200 therebetween. It may include a pair of wheels 320 .

The first connecting pin 310 is a rotating shaft connecting the body 100 and the wheel 320 to arrange the wheel 320 on one side of the body 100 . The first connecting pin 310 is formed as a single rotating shaft, is inserted through one side of the body portion 100 , and a pair of wheels 320 may be connected to both sides of the first connecting pin 310 . Accordingly, as the pair of wheels 320 rotate in contact with the ground, the first connecting pins 310 may also rotate at the same rotational speed as each of the connected wheels 320 .

Optionally, the first connecting pins 310 are formed of two rotation shafts and are respectively connected to one side of the body part 100 , and a wheel 320 may be connected to the outside of each first connecting pin 310 . Accordingly, as each wheel 320 rotates in contact with the ground, each first connecting pin 310 may also rotate at the same rotational speed.

A pair of wheels 320 may be formed to have the same diameter. In addition, each wheel 320 may be disposed on the first connecting pin 310 to face each other so that the traveling direction according to the rotation is the same. Accordingly, the writing instrument 10 according to the present invention can move linearly in the moving direction of the wheel 320 according to the rotation of the wheel 320 .

Also, in this case, the diameter of the wheel 320 may be such that the tip of the writing lead 210 of the writing unit 200 comes into contact with the ground. Accordingly, at the same time as the writing instrument 10 moves in a straight line, the tip of the writing lead 210 comes into contact with the ground to draw a straight line. In other words, you can draw a straight line conveniently without using a special tool such as a ruler.

In one embodiment, in this case, the writing unit 200 may further include a spring fixed inside the body unit 100 and into which the writing lead 210 is inserted. The spring applies an elastic force to the writing lead 210 in the downward direction of the body part 100 so that the tip of the writing lead 210 is located at a lower position than the lowermost part of the wheel 320 , and is perpendicular to the ground when writing. The spring may be compressed by the drag force. Accordingly, when the wheel 320 comes into contact with the ground, the problem that the tip of the writing lead 210 does not come into contact with the ground and thus cannot easily draw a straight line can be prevented.

In one embodiment, the circumferential surface of the wheel 320 may further include a friction member. That is, the friction member may be attached to all or part of the circumferential surface of the wheel 320 . Due to this, the wheel 320 may rotate smoothly without slipping due to increased friction with the ground. For example, the friction member may be rubber.

In addition, protrusions may be formed on the friction member. The wheel 320 can rotate smoothly without slipping as frictional force is further increased accordingly.

2 is a front view showing the camber angle (the angle between the vertical direction to the ground and the cross-section of the wheel and θ) of the rotating part 300 according to an embodiment of the present invention.

Referring to FIG. 2 , a pair of wheels 320 according to an embodiment of the present invention may have the same camber angle. 2A to 2C show various types of wheels 320 having the same camber angle as each other. FIG. 2A shows a camber angle of 0, FIG. 2B shows a negative camber angle (-), and FIG. 2C shows a camber angle. It is positive (+). Since the pair of wheels 320 according to the present invention are arranged to have the same camber angle, the straightness of the writing instrument 10 can be further improved when drawing a straight line.

Referring to FIG. 2D , a pair of wheels 320 according to an embodiment of the present invention may have different camber angles. For example, one wheel 320a may have a positive camber angle, and the other wheel 320b may have a negative camber angle. In this case, the body part 100 may draw a curve while rotating toward the wheel 320a having a positive camber angle.

Also, by adjusting the angle of the camber angle, the curvature of the curve can be adjusted. For example, as the absolute value of the angle of the camber angle increases, a curve having a smaller radius of curvature may be drawn. That is, the writing instrument 10 according to the present invention including a pair of wheels 320 having different camber angles can easily draw a curve without using a special tool.

Referring to FIG. 2E , a pair of wheels 320 according to an embodiment of the present invention may have different diameters. For example, one wheel 320a may have a larger diameter, and the other wheel 320b may have a smaller diameter.

In this case, the pair of wheels 320 are disposed on both sides of one first connecting pin 310 , and the first connecting pins are arranged so that both wheels 320 having different diameters on both sides can contact the ground. 310 may be inclined toward the wheel 320b having a small diameter.

Accordingly, the writing instrument 10 can draw a curve while rotating toward the wheel 320b having a smaller diameter. That is, the writing instrument 10 according to the present invention including a pair of wheels 320 having different diameters can easily draw a curve without using a special tool.

3 shows the measurement unit 400 and the movement distance display unit 500 according to an embodiment of the present invention, and FIG. 4 shows the measurement unit 400 and the movement distance display unit 500 according to another embodiment of the present invention. indicates. For reference, the body part 100 is not shown for convenience of explanation in FIGS. 3A and 4A , and the measuring part 400 is located inside the body part 100 .

The measuring unit 400 may measure the moving distance of the body unit 100 based on the rotation amount of the rotating unit 300 . The measuring unit 400 may be positioned at a lower side inside the body unit 100 and may be disposed so as not to interfere with the writing unit 200 .

Referring to FIG. 3A , in an embodiment, the measuring unit 400 may mechanically measure the moving distance. Specifically, the measurement unit 400 may include a second connection pin 410 parallel to the first connection pin 310 and spaced apart from each other in the longitudinal direction of the body portion 100 . The second connection pin 410 is a rotation shaft in which both sides are rotatably connected inside the body portion 100 .

The measuring unit 400 may further include a tape 420 having one side connected to the first connection pin 310 and the other side connected to the second connection pin 410 , and a scale is displayed on one surface. The tape 420 may be wound around the first connecting pin 310 as the wheel 320 rotates in the A direction. At the same time, the tape 420 wound on the second connecting pin 410 may be unwound.

A unit (eg, cm) for measuring a length may be described on the tape 420 . That is, the user can measure the moving distance of the body part 100 by reading the scale of the tape 420 that is wound on the first connecting pin 310 and moved by the tape 420 .

At this time, the scale described on the tape 420 is not a unit reflecting the actual length, but the length corresponding to the distance the body part 100 moves according to one rotation of the wheel 320, the tape 420 is wound by one rotation. It may be a scale written by reducing the length. In addition, as the moving distance of the body part 100 increases, the amount of the tape 420 wound around the first connecting pin 310 increases and the thickness of the tape 420 increases. Due to this, the one-turn winding length of the tape 420 may be gradually increased, and the interval of the scale may be displayed to reflect this.

The measurement unit 400 may further include a spiral spring disposed on the second connection pin 410 and a release button capable of releasing compression of the spiral spring.

In order to measure the moving distance, the wheel 320 rotates in the A direction and the tape 420 is unwound from the second connecting pin 410 and the second connecting pin 410 also rotates in the A direction. As the second connecting pin 410 is rotated in the A direction, the spiral spring connected to the second connecting pin 410 may be compressed. After the measurement is completed, a release button disposed on one surface of the body part 100 may be operated to reset the scale tape 420 , that is, to return it to a position (eg, 0) before measurement. The compressed spiral spring may be returned to its original state by the operation of the release button, and the second connecting pin 410 may be rotated in the opposite direction to the A direction to wind the tape 420 to the position before measurement. Accordingly, the writing instrument 10 can measure and reset the moving distance repeatedly.

The movement distance display unit 500 is disposed on one side of the body unit 100 and displays the movement distance measured by the measurement unit 400 so that the user can recognize it.

Referring to FIG. 3B , according to an embodiment, the movement distance display unit 500 may mechanically display. Specifically, a transparent plate 510 through which the inside can be seen is formed on one surface of the body 100 , and a marker 520 may be disposed on the transparent plate 510 at a specific point.

In an embodiment, the marker 520 may be an arrow, and may be disposed on one side of the transparent plate 510, engraved, or printed as shown in FIG. 3B. Alternatively, the marker 520 may be a straight line thicker than the scale, and may be positioned across the center of the transparent plate 510 left and right.

As described above, as the wheel 320 rotates, the tape 420 is wound and moved, and the marker 520 fixed to a specific point of the transparent plate 510 indicates the scale of the tape 420 , and the body part The moving distance of (100) can be displayed. For example, if the scale of the tape 420 pointed to by the marker 520 is 0 before the body part 100 starts to move, and the scale of the tape 420 pointed to by the marker 520 is 5 after the movement is finished, the body The moving distance of the unit 100 is 5.

As described above, the writing instrument 10 according to the present invention can measure and display the moving distance of the body unit 100 with a simple configuration, and can conveniently draw a line of a desired length (eg, 5 cm) using the writing unit 200 . have.

Referring to FIG. 4A , in an embodiment, the measuring unit 400 may measure the moving distance in an electromagnetic manner. Specifically, the measurement unit 400 may include a light emitting sensor 450 disposed on at least one of the pair of wheels 320 and a light receiving sensor 460 disposed on an outer circumferential surface of the body 100 .

The light emitting sensor 450 may be positioned on the inner surface of the at least one wheel 320 to irradiate light. In addition, the light receiving sensor 460 may be positioned on the outer peripheral surface of the body portion 100 to receive the light emitted by the light emitting sensor 450 . The light emitting sensor 450 disposed on at least one wheel 320 rotates together as the wheel 320 rotates, and the light receiving sensor 460 has a distance from the light receiving sensor 460 as the light emitting sensor 450 rotates. And based on the angle, it is possible to detect a change in light and detect the rotation of the wheel 320 .

The measurement unit 400 may further include a calculator capable of counting the rotation amount of the wheel 320 and converting it into a moving distance of the body unit 100 in consideration of the diameter of the wheel 320 . The writing instrument 10 may measure the moving distance of the body unit 100 from the rotation amount of the wheel 320 through the calculating unit.

In one embodiment, the light emitting sensor 450 is disposed on the outer circumferential surface of the first connection pin 310 , and the light receiving sensor 460 is disposed below the first connection pin 310 in the body part 100 . can

The light emitting sensor 450 rotates on the outer circumferential surface of the first connection pin 310 as the first connection pin 310 rotates and irradiates light, and is lower than the first connection pin 310 in the body part 100 . The light receiving sensor 460 located at can receive light every one rotation as the light emitting sensor 450 rotates to detect a change in light and detect the rotation of the first connection pin 310 and the rotation of the wheel 320 . have.

The calculation unit may count the rotation amount of the first connection pin 310 and convert it into a moving distance of the body part 100 in consideration of the diameter of the wheel 320 and measure it.

As an embodiment, the measurement unit 400 may measure the amount of rotation of the wheel 320 using electromotive force. For example, a magnetic material having a magnetic field is disposed on the inner surface of at least one wheel 320, and the magnetic material can generate an electromotive force by sensing a change in the magnetic field that the magnetic material exerts on the coil inside or outside the body part 100. A coil is disposed to measure the amount of rotation of the wheel 320 . The magnetic material rotates together as the wheel 320 rotates, and generates an electromotive force in the coil by moving closer to or away from the coil disposed on the body part 100 to sense and measure the rotation of the wheel 320 .

The calculation unit may count the rotation amount of the wheel 320 and convert it into a moving distance of the body part 100 in consideration of the diameter of the wheel 320 and measure it.

Referring to FIG. 4B , according to an embodiment, the movement distance display unit 500 may display electronically. Specifically, the measured movement distance may be displayed on the liquid crystal plate 540 disposed on one surface of the body portion 100 .

The liquid crystal plate 540 may receive information from the calculator and display numbers. In this case, the displayed number may be displayed up to an integer or one decimal place.

The writing instrument 10 according to an embodiment of the present invention further includes a position display unit 600 , the position display unit 600 is disposed at one end of the body unit 100 , so that the measuring unit 400 is positioned at the body unit 100 . It can indicate the point at which the moving distance is measured.

In particular, the position display unit 600 measures the movement distance of the body unit 100 by the measuring unit 400 when trying to measure only the length of an arbitrary line or an arbitrary object without taking notes with the writing unit 200 . points can be indicated.

That is, when writing with the writing unit 200, that is, when drawing a line, the wheel 320 rotates with the point where the tip of the writing lead 210 of the writing unit 200 touches the ground as a starting point, and the measurement is performed accordingly. The unit 400 may start the measurement. However, when writing is not performed with the writing unit 200 , particularly when the writing lead 210 is in a returned state rather than a protruding state, the starting point of a line or an object to be measured may be displayed through the position display unit 600 . .

In an embodiment, the location display unit 600 may be a light emitting pointer 610 that emits light. In this case, the light emitting pointer 610 may be disposed under the body portion 100 to irradiate light toward the ground.

The light emitting pointer 610 may be a laser pointer, and may indicate a point on the ground as a point. Accordingly, the user may align the light of the light emitting pointer 610 to match the starting point of the line or object to be measured, and start the measurement.

Similarly, the rotation unit 300 rotates to start measurement, and the rotation unit 300 rotates until the light of the light emitting pointer 610 matches the end point of the line or object to be measured to end the measurement.

Accordingly, the user can easily measure the length of any line or object by using the writing instrument 10 according to the embodiment of the present invention without any other special tools. In addition, even in the case of an arbitrary object having a curved surface, the length can be easily measured.

In one embodiment, the writing instrument 10 further includes a nib pressing unit 700 disposed at the other end of the body unit 100, and the position display unit 600 is configured to display the body unit (600) according to the operation of the nib pressing unit 700 It may include a needle 620 that can protrude from 100).

The nib pressing part 700 for protruding the needle 620 may be disposed together with the nib pressing part 700 for protruding the plurality of writing leads 210 described above, and according to the user's intention, the writing lead 210 or The needle 620 may protrude to the outside of the body part 100 .

The needle 620 is a member for marking a point on the ground, and may be a pointed plastic needle.

The user may align the tip of the needle 620 to the starting point of the line or object to be measured, and start the measurement.

Similarly, the rotation unit 300 rotates to start measurement, and the rotation unit 300 is rotated until the end of the needle 620 coincides with the end point of the line or object to be measured to end the measurement.

Accordingly, the user can easily measure the length of any line or object without any other special tools.

As described above, the writing instrument 10 according to the present invention can draw straight lines and curves conveniently without using other special tools, including the rotating part 300 including the wheels 320 .

In addition, it is possible to measure the moving distance of the body part 100 based on the rotation amount of the rotating unit 300 by the measuring unit 400 and display it to the user through the moving distance display unit 500 , so that other special You can conveniently draw straight lines or curves as long as you want without using tools.

In addition, by further including the position display unit 600, it is possible to measure and display the length of any line or any object even when not drawing a line.

As described above, the present invention has been described with reference to the embodiment shown in the drawings, but this is only an example. Those of ordinary skill in the art can fully understand that various modifications and equivalent other embodiments are possible from the embodiments. Therefore, the true technical protection scope of the present invention should be determined based on the appended claims.

Specific technical content described in the embodiment is an embodiment and does not limit the technical scope of the embodiment. In order to concisely and clearly describe the description of the invention, descriptions of conventional general techniques and configurations may be omitted. In addition, the connection or connection member of the lines between the components shown in the drawings illustratively shows functional connections and/or physical or circuit connections, and in an actual device, various functional connections, physical connections that are replaceable or additional It may be expressed as a connection, or circuit connections. In addition, unless there is a specific reference such as "essential" or "importantly", it may not be a necessary component for the application of the present invention.

In the description and claims, "above" or similar referents may refer to both the singular and the plural unless otherwise specified. In addition, when a range is described in the embodiment, it includes the invention to which individual values belonging to the range are applied (if there is no description to the contrary), and each individual value constituting the range is described in the description of the invention. same. In addition, the steps may be performed in an appropriate order unless the order is explicitly stated or there is no description to the contrary with respect to the steps constituting the method according to the embodiment. The embodiments are not necessarily limited according to the order of description of the steps. The use of all examples or exemplary terminology (eg, etc.) in the embodiment is merely for describing the embodiment in detail, and unless it is limited by the claims, the scope of the embodiment is limited by the examples or exemplary terminology. it is not In addition, those skilled in the art will recognize that various modifications, combinations, and changes may be made in accordance with design conditions and factors within the scope of the appended claims or their equivalents.

10: writing instrument 100: body part
110: holder clip 200: writing unit
210: writing lead 300: rotating part
310: first connecting pin 320: wheel
400: measurement unit 410: second connection pin
420: tape 450: light emitting sensor
460: light receiving sensor 500: moving distance display unit
510: transparent plate 520: marker
540: liquid crystal panel 600: position display unit
610: light emitting pointer 620: needle

Claims (11)

body part;
a writing unit disposed at one end of the body unit;
a rotating part inserted into one side of the body part through a first connection pin and including a pair of wheels disposed on both sides of the first connection pin to sandwich the writing part;
a measuring unit for measuring a moving distance of the body unit based on the rotation amount of the rotating unit; and
and a movement distance display unit disposed on one side of the body portion to display the movement distance measured by the measurement unit.
The measurement unit
a second connection pin parallel to the first connection pin and spaced apart from each other in a longitudinal direction of the body part; and
One side is connected to the first connection pin and the other side is connected to the second connection pin, a scale is displayed on one surface, and as the rotating part rotates, it is wound around the first connection pin and is unwound from the second connection pin tape; including;
The moving distance display unit
A writing instrument comprising a transparent plate disposed on one surface of the body portion and a marker disposed on the transparent plate, wherein a scale of the tape between the first connecting pin and the second connecting pin is displayed through the transparent plate. According to claim 1,
and the pair of wheels have the same camber angle. According to claim 1,
The pair of wheels have different camber angles, a writing instrument. According to claim 1,
wherein the pair of wheels have different diameters. delete delete According to claim 1,
The measuring unit further includes a light emitting sensor disposed on at least one of the pair of wheels and a light receiving sensor disposed on an outer peripheral surface of the body portion, and calculates the number of rotations of the wheel using the light emitting sensor and the light receiving sensor, A writing instrument for measuring the moving distance of the body part based on the calculated number of rotations. 8. The method of claim 7,
The moving distance display unit further includes a liquid crystal plate disposed on one surface of the body portion to display the measured moving distance on the liquid crystal plate, a writing instrument. According to claim 1,
The writing instrument further comprising a position display unit disposed at one end of the body portion to indicate a point at which the measurement unit measures the moving distance of the body portion. 10. The method of claim 9,
The position indicator includes a light emitting pointer for irradiating light, a writing instrument. 10. The method of claim 9,
Further comprising a nib pressing portion disposed on the other end of the body portion,
The position indicator includes a needle protruding from the body according to the operation of the nib pressing part.

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