JP3093967U - Glow pen - Google Patents

Abstract

(57) [Summary] (Modifications required) [Problem] A double-way light emission function that can simultaneously control light emission of a light emitter and insertion / removal of a pen core with a single push button, and night light, and light for writing at night. Provide a light-emitting pen with excellent practicality. SOLUTION: The pen core 50 has a lower pen tube 20 provided therein via an extension spring 51, and an upper pen tube 10 provided with a battery stand 30 and a push button 40 therein. It has a ratchet mechanism that performs both the lifting and lowering movement of the core and the rotating movement of the battery stand, and a double-way light emitting function that causes the upper and lower light emitting bodies 71 and 72 to emit light by the rotation of the battery stand.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a light emitting pen.

[0002]

[Prior art]

  Conventionally, a light-emitting pen is placed at an appropriate position (location) on the pen body, for example, a light-emitting dipole (LE). D), etc., has one built-in illuminator, and emits one illuminator. It emits light. Also, with this single-way light emitting pen, If a push button is used, push the button The illuminator emits light or does not emit light. It is controlled by the rotation of the pen tube.   Also, with the conventional light-emitting pen, patented double-way light emission that emits two light emitters. Known in the literature. For example, US Pat. No. 6,129,473 entitled “Dub In the "Rueway luminous pen", there are luminous bodies above and below the pen, and the user writes letters. At times, by pushing the pen core against the paper, the pen core is raised, and the battery By touching the table, electricity is passed through the two upper and lower light emitters at the same time to emit light, on the contrary, If you do not press the lead, the pen lead will not contact the battery stand. The gap does not shine. In other words, in the case of this pen, it is in a state that it does not emit light in normal time, It emits light only when writing letters.

[0003]

[Problems to be solved by the device]

  However, the conventional light-emitting pen is not the same as the above single-way light-emitting pen. As you can see, the method of pushing the button at the end of the pen to blink the light emitter is adopted. However, the method that controls the blinking of the light emitter and the pen core separately makes the operation troublesome. So, the light emitting pen is not easy to use.   Also, if you write letters on the double-way light-emitting pen as night illumination or at night There is no one with excellent practicality that can be used as lighting for daily use. The pen core rises by pressing the pen core against the paper like a blue-light emitting pen Therefore, the method of emitting two light emitters at the same time can be used as night lighting. And can stay in the hobby luminous ballpoint stage, suitable for children to use I'm just there. Also, in the case of this luminous pen, the pen core is exposed outside the pen tube. Cannot be automatically stored in the pen tube, so be careful not to damage the pen core. Must be attached.

[0004]   The present invention solves such a conventional problem by one push button, It is possible to control the light emission of the light emitter and the withdrawal of the pen core at the same time. , Place a light-emitting body on the top or top of the pen body, and let it emit light as night-time lighting. Alternatively, a light emitter is placed at the middle or bottom of the pen for writing at night. Has a double-way light emission function that can emit light as the lighting used It is an object of the present invention to provide a light emitting pen having excellent practicality.

[0005]

[Means for Solving the Problems]

  In order to achieve the above object, the light emitting pen of the present invention has a pen core and an expansion spring. The lower pen tube installed inside via the battery stand and the push button for installing the battery set. Is formed inside and is formed on the inner wall of the upper pen tube and the upper pen tube connected to the lower pen tube. In the guide structure, the introduction structure and the push button formed at the top of the battery stand The push-button is constructed by interlocking with the lead-out structure formed at the lower end. By pressing the button, the ratchet that moves the pen core up and down and rotates the battery stand together It is equipped with a charging mechanism and contacts the positive and negative poles of the battery set with the battery stand. Then, it penetrates to the outside of the battery stand in different directions, is bent into an L-shape, and contacts the wall of the battery stand. The two metal pieces are placed on the upper and lower ends of the battery stand. Make contact with one of the different poles of the battery set, and And bent into an L-shape and contacted with the metal pieces in a vertically symmetrical manner. Two light-emitting bodies, which are in contact with the wall of the battery stand in the absence of The metal piece is introduced into one concave groove formed in the inner wall of the pen tube of the ratchet. At the same time as the pen core is taken in and out by the mechanism, the battery stand rotates at a certain angle, By contacting each metal foot and each metal piece with the metal piece of the upper pen tube, It is provided with a double-way light emitting function in which the light emitting body emits light.   With this configuration, push the button at the end of the pen body to You can move it up and down to move the pen tip in and out of the pen tube. It is possible to control the blinking of two light emitters installed in the tube. This place Control the blinking of the two light emitters to cause the light emitter above the pen tube to emit light. It can be used as night lighting by using the light source in the middle or bottom of the pen tube. It can be used as lighting for writing letters at night by emitting light. When not using the light-emitting pen, turn off the lights of the two light-emitting Can be stored in a tube.   The present invention is also embodied as follows.   First, the battery stand is assembled by left and right divided stands, and the wall of one stand There is a hole in the surface to insert and remove batteries.   This makes it easy to insert and remove the battery even if it is difficult to disassemble the battery base. be able to.   Secondly, the concave groove of the upper pen tube has a dovetail cross section, and an arc-shaped metal piece with a cross section. Will be introduced.   As a result, after the metal piece is introduced into the groove, the metal piece does not fall off in the stationary state.   Third, a support for holding the expansion spring on the rear end of the pen core and supporting the luminous body below. A stick is provided.   This allows the support rod to hold down the spring and support the light emitter below. Wear.   Fourth, a transparent cap is placed on top of the push button.   As a result, the light of the upper light-emitting body can be transmitted through the transparent cap. Na The convex transparent sheet on the top of the cap has a light collecting effect.   Fifth, a spring is installed between the push button and the cap.   This allows the cap to be quickly lifted from the end of the pen.

[0006]   In addition, the light-emitting pen of the present invention has a pen core that is internally installed via an expansion spring. The pen tube, the battery stand for installing the battery set, and the push button are installed internally, and the In the upper pen tube connected to the inner tube and the guiding structure formed on the inner wall of the upper pen tube , Introducing structure formed at the upper end of the battery stand and leading out formed at the lower end of the push button The structure is intermeshed with each other. It is equipped with a ratchet mechanism that performs both lifting and lowering movements of the core and rotating movements of the battery base. Touch the base to the positive or negative pole of the battery set and stick it out of the battery base. One metal piece bent into an L-shape and abutted against the wall of the battery stand, and placed on the top of the battery stand Place one metal foot in contact with the negative or positive pole of the battery set, and The metal leg penetrates the battery block to the outside and is bent into an L shape. And one light emitting body which is brought into contact with the wall of the battery stand in a non-contact state. At the same time, a metal piece was introduced into one groove formed on the inner wall of the upper pen tube, The ratchet mechanism allows the pen core to be taken in and out at the same time that the battery stand is at a constant angle. As it rotates, the upper and lower metal feet and metal pieces come into contact with the metal pieces of the upper pen tube, The light-emitting body has a single-way light emitting function.   With this configuration, push the button at the end of the pen body to You can move it up and down to move the tip of the pen in and out of the pen tube, and It is possible to control the blinking of the light emitter installed in the tube. in this case, It can be used as night lighting by illuminating the light emitting element above. When not in use, turn off the light from the light emitter and store the pen tip in the pen tube. You can

[0007]   In addition, the light-emitting pen of the present invention has a pen core that is internally installed via an expansion spring. The pen tube, the battery stand for installing the battery set, and the push button are installed internally, and the In the upper pen tube connected to the inner tube and the guiding structure formed on the inner wall of the upper pen tube , Introducing structure formed at the upper end of the battery stand and leading out formed at the lower end of the push button The structure is intermeshed with each other. It is equipped with a ratchet mechanism that performs both lifting and lowering movements of the core and rotating movements of the battery base. Touch the base to the negative or positive pole of the battery set, and then stick it out of the battery base. One metal piece bent into an L shape and abutted on the wall of the battery stand, and placed on the lower end of the battery stand Place one metal foot in contact with the positive or negative pole of the battery set, and The metal leg penetrates the battery block to the outside and is bent into an L shape. And one light emitting body which is brought into contact with the wall of the battery stand in a non-contact state. At the same time, a metal piece was introduced into one groove formed on the inner wall of the upper pen tube, The ratchet mechanism allows the pen core to be taken in and out at the same time that the battery stand is at a constant angle. Rotate, the upper and lower metal feet and metal pieces come into contact with the metal pieces of the upper pen tube, The light-emitting body has a single-way light emitting function.   With this configuration, push the button at the end of the pen body to You can move it up and down to move the pen tip in and out of the pen tube. It is possible to control the blinking of the light emitter installed in the tube. In this case, below It can be used as lighting for writing letters at night by illuminating When you do not use the light-emitting pen, turn off the light from the light-emitting Can be stored in a tube.

[0008]

[Embodiment of device]

  Embodiments of the present invention will be described below with reference to the drawings.   (Embodiment 1)   1 to 12 show a light emitting ballpoint pen according to a first embodiment of the present invention. There is. In FIG. 1, the light-emitting ballpoint pen is arranged in the upper pen tube 10 and the upper pen tube 10. Battery stand 30 and push button 40, which are located at the lower end of the upper pen tube 10, Lower pen tube 20, core 50 and expansion spring 5 arranged in the lower pen tube 20 1 and so on.

[0009]   The upper pen tube 10 is formed of a plastic tube. Also this plus The tube of ticks may also be covered on the outside with a layer of metal. On top of it A screw stopper 81 is attached, and a screw 15 is formed on the inner circumference of the opening at the bottom. A screw 21 provided on the top of the lower pen tube 20 is screwed into the screw 5. A guide structure 11 is adopted on the upper part of the inner wall of the upper pen tube 10. This guiding structure 11 Is a well-known technique, and is composed of several equiangular ridges 12. Ridge 12 An introduction track 13 is formed between the ridges 12, and the bottom side (lower end) of each ridge 12 is an oblique line. It is a chet 14. Further, there is a groove 16 on the inner wall of the upper pen tube 10, The metal piece 17 is introduced. In this case, as shown in FIG. 5, the cross-sectional shape of the groove 16 is a pigeon. A metal piece 17 having a tail shape and an arch-shaped cross section is introduced, and the metal piece 17 is fixed. And never fall out.

[0010]   The structure of the battery stand 30 is shown in FIGS. As shown in FIG. 0 is assembled by two stands 37, 37 on the left and right. The battery sets 60 are arranged vertically in the vertical direction, and as shown in FIG. A metal and a negative electrode are provided above and below the battery storage part in the battery base 30, respectively. The curved pieces 38, 39 are brought into contact with each other. These metal curved pieces 38 and 39 are batteries, respectively. Penetrate out of the stand 30 in different directions (here opposite radial directions of the battery stand) And is bent into an L-shape and abutted against the wall of the battery stand 30 (ie, exactly It is said that). At the upper and lower ends of the battery stand 30, light-emitting bodies 71 and 7 are provided, respectively. 2 is fitted. These luminous bodies 71 and 72 have a small volume and consume electricity. Light emitting dipole (LED) is the most preferable because it has low brightness, bright intensity and long service life. Yes. These luminous bodies 71 and 72 have two metal feet with different lengths, and The shorter one of the legs 701 is brought into contact with one of the different poles of the battery set 60, The direction 702 is different from the battery base 30 in different directions (here, the opposite radii of the battery base). Direction), bent into an L-shape, and abutted against the wall of the battery base 30 ( In other words, they are exactly attached). In this case, each metal foot is shown in FIG. As shown in Fig.2, keep the two metal bending pieces The metal pieces 38, 39 are not in contact with each other. Also, the two stands 37, 37 It is difficult to disassemble after assembling and it is easy to replace the battery set 60. A hole 361 is formed in the wall surface 36 of 37.

[0011]   As shown in FIG. 1, an introduction structure 31 is adopted at the upper end of the battery base 30. It This introduction structure 31 is a well-known structure, and as shown in FIG. It is composed of a lock 32. An introduction groove is provided between the convex blocks 32. 33 is formed, and a triangular oblique groove 34 is formed on the top of each convex block 32. Thus, a mountain-shaped ratchet 35 is formed.

[0012]   As shown in FIG. 1, the push button 40 has a hollow tubular shape. A transparent cap 82 is provided to seal the top. In this case, The screw 82 on the inner circumference is screwed into the screw 822 on the inner circumference and the screw 46 on the outer circumference of the push button 40. It is prevented from falling off. Further, as shown in FIG. 6, the top of the cap 82 is transparent. The bright convex lens 821 has an effect of effectively condensing light. Also, push button In the process of pushing the button 40, the push button 40 is Dynamically reverted. In this case, as shown in FIG. The expansion spring 83 is further installed between the convex block 42 and the cap 82. .

[0013]   At the lower end of the push button 40, as shown in FIG. 1, a lead-out structure 41 is adopted. Has been done. This derivation structure 41 is a well-known structure, and includes several conformal convex blocks 42. It is composed by. The introduction groove 43 is provided between the convex blocks 42 and 42. A triangular tank 44 is formed at the bottom of each convex block 42 to form a mountain-shaped ratchet. The unit 45 is configured.

[0014]   In this way, the battery base 30 and the push button 40 are guided to the inner wall of the upper pen tube 10. It is installed in the structure 11, and the introduction structure 31 and the derivation structure 41 mesh with each other. Then, by pressing the push button 40, the two structures 31 and 41 are guided to each other. The rotation of the battery base 30 causes the battery base 30 to rotate at a constant angle.

[0015]   On the other hand, the lower pen tube 20 is formed by a transparent plastic tube, which allows light to pass through. It leaks to the outside. Inside the lower pen tube 20 is inside the expansion spring 51 The wick 50 placed in the So that the lower illuminator 72 is supported by the support rod 52. Has become. If the wick 50 is a plastic wick, attach it to a suitable wick wall. The two symmetric convex ears 53 (shown by the dotted line) are extruded and the sprue under the core 50 is pushed. You may make it support the ring 51. In this case, the support rod 52 is not installed and the core is directly 50 is used to support the lower light emitter 72.

[0016]   In this way, the core 50 is held under the battery base 30, and the top of the battery base 30 is electrically charged. The introduction structure 31 of the pond base 30 and the lead-out structure 41 of the push button 40 are engaged with each other. There is. These battery base 30 and push button 40 are located in the guide structure 11. Therefore, when the user repeatedly pushes the push button 40, When the lead-out structure 41 is moved up and down, the lead-in structure 31 rotates, and the battery base 3 0 is rotated by a certain angle. This constant rotation angle pushes with the battery stand 30. It is determined by the number of ratchets 35 and 45 of the button 40. The greater the number, the more the angle Is smaller, and conversely, the smaller the number, the larger the angle. In this embodiment, one The rotation angle of is set to 60 °. Such a battery stand rotates at a certain angle Since the technology described above is already well known, only a brief description will be given here.

[0017]   Next, the operation of this light emitting ballpoint pen will be described. With this luminous ballpoint pen , The battery stand 30 and the core 50 are installed together in the pen tube, and the push button 40 Control the light emitter to emit light or not, It can be taken out or put in a pen tube. In this case, push As the push button 40 is pushed, the battery base 30 has six rotation angles (that is, once. Rotation angle is 60 °), the following operations are performed on the light emitter and the pen tip. sand That is, every time the push button 40 is pressed (step 1), the pen tip comes out. → ( Step 2) The pen tip enters → (Step 3) The pen tip comes out. The lower illuminant emits light. → (Step 4) Insert the pen tip. → (Step 5) The pen tip comes out. → (step 6) Insert the pen tip. The upper light emitter emits light. → (Return to step 1) The pen tip comes out .

[0018]   Of the above 6 steps, in steps 1, 2, 4, and 5, the upper and lower light emitters 71, 72 Does not emit light, and only in steps 3 and 6, the upper and lower light emitters 71 and 72 emit light separately. To do. That is, in steps 1, 2, 4, and 5, as shown in FIG. Of two sets of metal feet / pieces 702/38 and 702/39 exposed on the wall of Even when the gap is not in contact with the metal piece 17 on the inner wall of the upper pen tube 10, at this time, Since electricity is not passed through the upper and lower light emitters 71 and 72, they do not emit light. Also, step 2, 4, the wick 50 is in the state of rising due to the influence of the expansion of the spring 51. Therefore, the pen tip 54 is in the lower pen tube 20. This allows you to Perfect for putting in.

[0019]   In addition, in step 3, as shown in FIGS. 9 and 10, the battery stand 30 has a constant angle. The metal pieces / pieces 702/38 and the metal piece 17 come into contact with each other by being rotated to a degree. In addition, the other short metal leg 701 of the lower luminous body 72 is already in the battery set 60. Since it is in contact with the positive pole, the negative current of the battery set 60 causes The transparent lower pen tube 20 glows by conducting electricity, passing electricity and emitting light. In this case, The push button 40 is pushed, the battery base 30 is lowered, and the ratchet 3 of the battery base 30 is pushed. 5 is blocked by the diagonal ratchet 14 of the upper pen tube 10, and the battery base 30 is You will not be able to reach the position. For example, spring 51 of core 50 Even if there is a rebound, it cannot rise. As a result, the core 50 becomes the battery stand 30. The pen tip 54 descends and is exposed to the outside of the lower pen tube 20 under the influence of the descending stationary of the pen. Be done. In this way, the transparent lower pen tube 20 glows, and the pen tip comes out from the lower pen tube 20. This is convenient when writing letters at night.

[0020]   Further, in step 6, as shown in FIG. 11 and FIG. Rotated to an angle, another set of metal feet / pieces 702/39 and metal piece 17 The short metal foot 701 on the other side of the light emitter 71, which has been touched, is already in the battery set. Since it is in contact with the negative electrode of 60, the positive current of the battery set 60 emits light above. Conducted to the body 71, the upper light emitting body 71 immediately obtains electricity and emits light, and the light is pushed by the push button. It leaks out through the cable 40. A support rod 52 is installed on the top of the push button 40. Since it has a convex lens 821, it is possible to obtain a light-collecting effect. Can be used. In this case, push button 40 is pressed (again) , The battery stand 30 descends together, and the battery stand 30 recovers the spring 51 of the core 50. , And the guide of the convex block 32, it enters the track 13 of the upper pen tube 10 and The pond stand 30 is automatically raised to its original position. As a result, the core 50 is sprinkled. The pen tip 54 is moved back into the lower pen tube 20 under the influence of the expansion of the pen. Can be put in. Since the raising / lowering operation of the lead 50 is also a known technique, I won't go into more detail here.

[0021]   (Embodiment 2)   FIG. 13 shows a light-emitting ballpoint pen according to the second embodiment of the present invention. This In the second embodiment, the light-emitting ballpoint pen is configured as a single-way light-emitting pen. Has been done. That is, as shown in FIG. 13, only the upper light emitter 71 is attached to the battery stand 30. It is provided and there is no lower light emitter 72. The battery set 60 is the bottom of the battery set storage section. The lower metal curved piece 39 is brought into contact with the lower metal curved piece 39, and the upper metal curved piece 38 is attached to the top of the battery set storage section. Not provided. In this way, this light-emitting ballpoint pen has only the upper light emission function. Get

[0022]   (Embodiment 3)   FIG. 14 shows a light-emitting ballpoint pen according to the third embodiment of the present invention. This In the third embodiment, the light-emitting ballpoint pen is configured as a single-way light-emitting pen. Has been done. That is, as shown in FIG. 14, only the lower light emitter 72 is attached to the battery stand 30. It is provided and there is no upper light emitter 71. Also, the battery set 60 is the top of the battery set storage section. The lower metal curved piece 39 is brought into contact with the upper metal curved piece 38, and the lower metal curved piece 39 is provided on the bottom of the battery set storage section. Not provided. In this way, this light-emitting ballpoint pen is equipped with only the lower light emission function. Get

[0023]   In the above description, specific embodiments of the present invention have been illustrated. Besides this, Various technical items may be changed within the scope of the invention. For example, You can change the structure of the battery base with a push button at a certain rotation angle, Change the position of the spring inside the tube, or change to a single-way light emitting pen All such simple changes such as changes are within the technical scope of the present invention. Of.

[0024]

[Effect of device]

  As described above, the light emitting pen of the present invention can be used as a double-way light emitting pen. It can also be configured as a toggle light-emitting pen, and in either case, the pen By pushing the button at the end of the body, move the pen core up and down to move the pen tip. It can be put in and taken out from the pen tube, and the You can control the blinking. Especially in the case of double-way emission, two By controlling the blinking of the luminous body and making the luminous body above the pen tube emit light It can be used as night lighting, and emits light in the middle or bottom of the pen tube. This allows it to be used as lighting when writing letters at night. When not using the light-emitting pen, turn off the lights of the two light-emitting bodies and put the pen tip inside the pen tube. Can be stored. Also, in the case of single-way light emission, the point of one light emitter Control the light emission, and emit light from the light emitter above or below the pen tube. By using it as night lighting or as lighting for writing letters at night When the light emitting pen is not used, turn off the light of the light emitter and use the pen tip. Can be stored in a pen tube.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a light emitting ballpoint pen according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a battery stand of the light emitting ballpoint pen.

FIG. 3 is a cross-sectional view of a battery stand of the same light emitting ballpoint pen.

FIG. 4 is an assembled perspective view of a battery stand of the light emitting ballpoint pen.

FIG. 5 is a cross-sectional view of an upper pen tube of the same light emitting ballpoint pen.

FIG. 6 is an overall perspective view of the same light emitting ballpoint pen.

FIG. 7 is a cross-sectional view showing the operation of the same light-emitting ballpoint pen, showing a state where the pen core is inside the pen tube when the upper and lower light emitters are not emitting light.

8 is a sectional view taken along line 7A-7A in FIG.

FIG. 9 is a cross-sectional view showing the operation of the light-emitting ballpoint pen, showing a state in which the lower light-emitting body emits light and the pen core is pulled out from the pen tube.

10 is a cross-sectional view taken along the line 8A-8A in FIG.

FIG. 11 is a cross-sectional view showing the operation of the light-emitting ballpoint pen, showing a state in which the upper light-emitting body emits light and the pen core is inside the pen tube.

12 is a sectional view taken along line 9A-9A in FIG.

FIG. 13 is a sectional view of a battery stand of a light emitting ballpoint pen according to a second embodiment of the present invention.

FIG. 14 is a sectional view of a battery stand of a light emitting ballpoint pen according to a third embodiment of the present invention.

[Explanation of symbols]

10 Upper pen tube 11 Guide structure 12 equiangular ridges 13 Introduction track 14 diagonal ratchet 15 screws 16 grooves 17 metal pieces 20 Lower pen tube 21 screws 30 battery stand 31 Introduction structure 32 conformal convex block 33 introduction groove 34 diagonal groove 35 Yamagata Ratchet 36 wall 361 holes 37 units 38, 39 Metal curved pieces 40 push button 41 Derivation structure 42 conformal convex block 43 introduction groove 44 triangular tank 45 Yamagata Ratchet 46 screws 50 cores 51 extension spring 52 Support rod 53 convex ear 60 battery set 71, 72 luminous body 701 Shorter metal foot 702 The longer of the metal legs 81 Pen stopper 82 transparent cap 821 transparent convex lens 822 screw 83 Extension spring

Claims (8)

[Scope of utility model registration request] 1. A lower pen tube having a pen core internally provided via an expansion spring, a battery base for installing a battery set and a push button, and an upper pen tube connected to the lower pen tube. In the drawing structure formed on the inner wall of the upper pen tube, the introduction structure formed on the upper end of the battery base and the lead-out structure formed on the lower end of the push button are intermeshed with each other. It is equipped with a ratchet mechanism that performs both lifting and lowering movements of the pen core and rotating movement of the battery stand by pushing the push button.The battery stand comes into contact with the positive and negative poles of the battery set, and the To the upper and lower ends of the battery stand and two metal pieces that are bent into an L-shape by penetrating in different directions and abutted against the wall of the battery stand, and one metal foot of each is different from the other of the battery set. Touch one pole and the other Two upper and lower light emitters, which are bent in an L-shape by penetrating the metal legs out of the battery base in different directions and abutted on the wall of the battery base in a state of being vertically symmetrical and not in contact with the metal pieces, A metal piece is introduced into one groove formed on the inner wall of the upper pen tube, and the pen core is taken in and out by the ratchet mechanism at the same time as the battery stand rotates at a certain angle, 2. A light-emitting pen having a double-way light emitting function in which an upper or lower light emitter emits light when each metal foot and each metal piece come into contact with the metal piece of the upper pen tube. 2. The light emitting pen according to claim 1, wherein the battery stand is assembled by a stand divided into right and left, and a hole for taking in and out the battery is formed in a wall surface of one of the stand. 3. The light-emitting pen according to claim 1, wherein the concave groove of the upper pen tube has a dovetail cross-section, and an arch-shaped metal piece having a cross-section is introduced therein. 4. The light-emitting pen according to claim 1, further comprising a support bar which is provided at a rear end of the pen core and which holds the expansion spring and supports the lower light-emitting body. 5. The light-emitting pen according to claim 1, wherein a transparent cap is provided on the top of the push button. 6. The light-emitting pen according to claim 4, wherein a spring is installed between the push button and the cap. 7. A lower pen tube having a pen core internally provided through an expansion spring, a battery base for installing a battery set and a push button therein, and an upper pen tube connected to the lower pen tube. In the drawing structure formed on the inner wall of the upper pen tube, the introduction structure formed on the upper end of the battery base and the lead-out structure formed on the lower end of the push button are intermeshed with each other. It is equipped with a ratchet mechanism that performs both lifting and lowering movements of the pen core and rotating movement of the battery stand by pressing the push button.The battery stand comes into contact with the positive or negative pole of the battery set, and goes out of the battery stand. One metal piece that penetrates and is bent into an L-shape and is abutted against the wall of the battery base, and is arranged at the upper end of the battery base, and one metal foot is in contact with the negative or positive pole of the battery set, and the other Stick the metal feet of the One light-emitting body, which is bent into an L-shape, is vertically symmetrical to the metal piece and is in contact with the wall of the battery stand in a state of not being in contact with the metal piece, and is formed on the inner wall of the upper pen tube. A metal piece is introduced into the other groove, and at the same time the pen core is taken in and out by the ratchet mechanism, the battery stand rotates at a certain angle, and the upper and lower metal feet and the metal piece become the metal piece of the upper pen tube. A light-emitting pen having a single-way light-emitting function in which the light-emitting body above emits light when contacted. 8. A lower pen tube having a pen core internally provided via an expansion spring, a battery base for installing a battery set and a push button, and an upper pen tube connected to the lower pen tube. In the drawing structure formed on the inner wall of the upper pen tube, the introduction structure formed on the upper end of the battery base and the lead-out structure formed on the lower end of the push button are intermeshed with each other. It is equipped with a ratchet mechanism that performs both lifting and lowering movements of the pen core and rotating movement of the battery stand by pressing the push button.The battery stand comes in contact with the negative or positive pole of the battery set, and is placed outside the battery stand. One metal piece that penetrates and is bent into an L-shape and abuts against the wall of the battery stand, and is arranged at the lower end of the battery stand, and one metal foot is in contact with the positive or negative pole of the battery set, and the other Stick the metal feet of the One light-emitting body, which is bent into an L-shape, is vertically symmetrical to the metal piece and is in contact with the wall of the battery stand in a state of not being in contact with the metal piece, and is formed on the inner wall of the upper pen tube. A metal piece is introduced into the other groove, and at the same time the pen core is taken in and out by the ratchet mechanism, the battery stand rotates at a certain angle, and the upper and lower metal feet and the metal piece become the metal piece of the upper pen tube. A light-emitting pen having a single-way light-emitting function in which a light-emitting body below emits light when contacted.