KR200240344Y1 - a propelling pencil - Google Patents

Abstract

The present invention discloses a device for returning the tactile feeling out of the bracket after use to the inside of the bracket by pressing a knob.

And a bracket having a normal tactile feeling, a thick cylinder suitable for gripping by hand with a core pipe for storing the tactile inside, and a hole installed at the tip of the body to induce the withdrawal and return of tactile feeling; An extraction ring for extracting tactile feeling in a state where the chuck is coupled to and separated from the rear end of the chuck; Pressing the knob to extract the tactile feeling when the mechanical pencil is used by the chuck which guides the withdrawal and return of the tactile when entering and exiting, and the hammer spring slides between the chuck connector and the knob of the tubular pipe. And the state of returning the extracted tactile feeling by pushing the knob deeper, and the stable use of the tactile and mechanical pencil The handle can be convenient.

Description

Mechanical pencil {a propelling pencil}

The present invention relates to a mechanical pencil, and more particularly to a mechanical pencil that is extracted and used by the shaking motion of the mechanical pencil extracted from the mechanical pencil, and easily returns to the inside of the metal fittings by pressing a knob that protrudes from the mechanical bracket of the mechanical pencil. .

The mechanical pencil that extracts the core (graphite) has a core tube inside the outer cylinder, and a ring hole for inducing the chuck to the front end of the core tube is connected with the coil spring, and the extraction of the eraser and the core is selected at the end of the core tube. Engage the knob. The ring connected to the end of the core tube was exposed to the outside of the outer cylinder, and the metal fittings for guiding and protecting the core were screwed together to be in close contact with the outer cylinder, thereby stably combining the bracket with the outer tube and the tube.

In addition, between the bracket and the ring, a chuck providing movement force to the tactile, a drawing ring for controlling the outer periphery of the chuck, and a thin-walled chuck providing a frictional resistance to the extracted tactile to stabilize the extraction state are provided in the core. An extraction member was provided.

If you press the knob located at the tip of the outer cylinder to write the letter, the chuck in the ring located at the tip of the outer cylinder will move out of the ring in the state of connection with the inner tube and the inner tube. As soon as it is extracted and moved out of the ring, the chuck opens and the shim stops moving. When the knob is pressed, the elastic force of the coil spring compressed between the core pipe and the ring hole pushes up the core pipe, and at the same time, the chuck is pulled to enter the ring restraint. When the knob is pressed again, the core pipe is moved and the chuck of the tip moves in the bite state, and the core is extracted to a predetermined length when the core is released while releasing the core. By repeatedly pressing the knob as described above, the core (graphite) is extracted out of the neck of the bracket at predetermined intervals so that writing is possible.

As such, in the related art, a thin touch can be pushed out only in one direction by a drawing ring, a chuck, and a coil spring. Therefore, after using the sharpen pen, push the knob to advance the chuck of the core tube and release the shim by pressing the knob to release the core and push the tactile against the surface of the desk. Shim enters the gap inside the chuck was able to insert into the heart.

However, since the tactile sensation is thin, when the vertical pencil is pressed upright, the tactile splatter occurs frequently and the sharp shim is wasted. When inserting the extracted shim, the shim and the pressing surface must be in vertical contact with each other. There was a problem in that, the contact of the metal bracket on the desk surface, or the bottom surface, so if there is a problem in the entrance of the tactile had a problem that the mechanical pencil itself has to be replaced.

The present invention is devised to solve the above problems, and by repeating the pressing operation of the knob not only extracts the sense of touch to the outside of the bracket, but also without touching the knob, shaking the outer cylinder in the vertical direction, the touch to the outside of the bracket The purpose of the present invention is to automatically protrude and to restore the tactile feeling by pressing the knob deeply to restore the protruding tactile feeling to protect the waste of the pencil and the tip of the bracket.

The purpose of the present invention is to install the inside of the normal tactile and the core tube to store the tactile inside and the outer cylinder of a suitable thickness for gripping by hand, connected to the core tube at the tip of the outer cylinder and withdrawal of the tactile A bracket having a stopping jaw and a control hole for inducing a return, a chuck for guiding the withdrawal and return of the tactile inside the outer cylinder, an extraction ring for extracting the tactile in a state of being engaged and separated in a state fitted to the rear end of the chuck; A return ring for returning the tactile sensation to a state of being coupled and separated from the control hole at the tip of the chuck, and a chuck connector is installed between the core pipe and the ring tool, and a hammer member for automatic extraction of the tactile finger between the chuck connector and the knob of the cylinder pipe. It will be sufficiently achieved by the configuration to install.

1 is a cross-sectional view showing the internal structure of the mechanical pencil of the present invention.

Figure 2 is an enlarged cross-sectional view of the bracket for the mechanical pencil of the present invention, the state of extraction of the tactile feeling.

Figure 2a is a state diagram to extract the extracted tactile again in Figure 2;

FIG. 2B is a state diagram again extracting the extracted tactile feeling in FIG. 2A; FIG.

Figure 3 is an enlarged cross-sectional view of the bracket of the subject innovation, the state of completion of the return of the sense of touch.

3A is a state diagram of returning the tactile feeling of FIG. 3.

Figure 3b is a state of completing the extracted haptic extract of the present invention.

* Description of symbols on the main parts of the drawings *

100 ... mechanical pencil 110 ... external 120 ... bracket

121 Screw hole 122 Extraction hole 123 Extraction ring

124 stopping jaw 125 control hole 126 return hole

127.Return ring 128 ... Stop jaw 130 ... Lingo

131.Thread 132 ... Mounting jaw 133 ... Coil spring

140 ... hammer spring 141 ... rubber ring 151 ... shank

152 .. Shank end 153 ... Supporting jaw 154 ... Return spring

155 ... Jump 160 ... Knob 170 ... Eraser

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

1 is a cross-sectional view showing the internal structure of the mechanical pencil of the present invention, the inside of the outer cylinder 110 of the mechanical pencil 100 is inserted into the core pipe 150 that can hold the tactile 200. One side of the core pipe 150 is provided with a chuck 151 for extracting or returning the tactile 200, and a ring hole 130 for controlling the opening and retraction of the chuck 151 together with the coil spring 133. It is installed, the metal fitting 120 for guiding the movement of the tactile 200 of the mechanical pencil 100 is screwed to the threaded portion 131 of the ring 130 to penetrate the seam pipe (150).

The eraser 170 is inserted into the other side of the core pipe 150, and a knob 160 that is pressed by hand is installed thereon.

The shimtong pipe 150 is provided with a hammer member for automatically extracting the tactile 200.

The hammer member is provided with a chuck connector 152 between the core pipe 150 and the ring 130, and install a hammer spring 140 for generating an impact force between the ring 130 and the knob 160, Between the spring 140 and the knob 160 is configured to provide a return spring 157 for the return of the knob when the tactile return.

The support jaw 152 is formed on the chuck connector 152 and the support jaw 153 is provided with a rubber ring 141 for absorbing the impact of the hammer spring 140 and absorbs the noise generated during the impact. Then, the fixing jaw 154 for fixing the return spring 154 to the shimtong pipe 150 and the locking jaw 156 for limiting the movement of the knob 160 is formed.

2 is an enlarged cross-sectional view of the bracket for the mechanical pencil of the present invention, the screw portion 131 of the ring opening 1390 penetrating to one side of the outer cylinder 110 of the mechanical pencil 100 moves the tactile 200 of the mechanical pencil The bracket 120 for guiding the combination is coupled to the upper end of the outer cylinder 110, the knob 160 is coupled to the shimtong pipe 150.

The bracket 120 has an extraction hole 122 for advancing in the state of holding the tactile 200 inside the ring 130, the control hole 125 for opening the chuck 151, and the chuck 151 come back. The lifting return hole 126 is successively formed to have a diameter gradually narrowing, and a tip 129 is inserted into the tip of the return hole 126 so that its end penetrates out of the metal fitting 120.

In the extraction hole 122 and the control hole 126 of the bracket, the extraction ring 123 and the return ring 121 are fitted to the front end of the chuck 151 so that the chuck 151 is lifted with the stop jaw 124. It is inserted into the extraction hole 122 and the control hole 125 having the stop jaw 128, respectively.

According to the present invention having such a configuration, the extraction of the tactile 200 of the mechanical pencil 100 is performed by repeatedly pressing the knob 160. In particular, according to the present invention, the sharp core is sufficiently extracted even by the shaking of the sharp pencil 100 in the up-down direction in a state where the mechanical pencil 100 takes a handwriting posture.

In addition, according to the present invention, by repeatedly pressing the knob 160 on the tactile 200 extracted out of the metal fitting 120 of the mechanical pencil 100, it may be returned to the core tube 150 side.

2A is a state diagram for extracting the extracted tactile again in FIG. 2, and FIG. 2B is a state diagram for re-extracting the extracted tactile again in FIG. 2A. That is, when the knob 160 is pressed, the core tube 150 is advanced and then the chuck 151 is also advanced, so that the chuck 151 is advanced by biting the tactile 200 and extracting the ring 123 from the extraction hole 122 of the bracket. Extraction ring 123 is caught in the stop jaw 124 when passing through the state

Although stopped, the chuck 151 keeps moving forward and enters the control hole 125 to stop the movement of the tactile 210. At this time, the coil spring 133 located between the ring tool 130 and the chuck connector 152 achieves the maximum compressed state (FIG. 2B).

When the user presses the knob 160 in the above state, the coil spring 133, which is compressed, returns and pushes the core pipe 150, so that the chuck 151 also extracts the hole 122 from the control hole 125. Moved to, while passing through the extraction ring 123, the pneumatic 200 is bitten, and enters the ring 130. (Figure 2)

Thus, when repeated by pressing and releasing the knob, the touch 200 is extracted at regular intervals from the tip 129 of the bracket 120.

When explaining a temporary example for the extraction operation described above holding the outer cylinder 110 of the mechanical pencil 100 in a writing posture and shaking the hand in the vertical direction, the hammer spring 140 inserted into the core tube 150 is a core pain Sliding in the pipe 150, in the sliding state the hammer spring 140 hits the supporting jaw 153 of the chuck connector 152 to form an impact force by its own load, the impact force is the chuck connector ( It is transmitted to the coil spring 133 through 152 to compress the coil spring 133 while moving the chuck connector 152 as when pressing the knob. Accordingly, the chuck 151 connected to the core pipe 150 passes through the extraction ring 123 of the metal fitting 120 while the chuck 200 is held therein, and extracts the tactile 200 from the control hole 125. Extraction of the tactile 200 is stopped. Afterwards, the repulsive force of the coil spring 133 of the cardiac pipe 150 pushes up the cardiac pipe 150 so that the chuck 151 is moved through the extraction ring 123 while moving into the ring 130. As a result of the shaking operation, the chuck 151 enters and exits the inner space of the metal fitting 120 from the ring ball 130, and at this time, bites the tactile 200 and finally extracts the tactile 200.

Writing is suitable when the knob 160 is pressed or the outer cylinder 110 is shaken to extract the tactile 200 to a predetermined length as described above. However, when carrying the pencil 100 after writing, the touch 200 exposed to the outside of the tip 129 is uncomfortable and easily spreads. Therefore, in this case, the exposed tactile 200 can be returned by repeating a state in which the knob 160 is deeply pressed in the present invention.

That is, when the knob 160 is pressed, the piercing pipe 150 moves and the chuck connector 152 compresses the coil spring 123, and the chuck 151 extracts the ring 120 from the ring tool 130 ( 123 passes through the control hole 125, and further presses the knob 160 to press the return spring 157 of the core tube 150 to compress the force to further advance the core tube 150, so that the chuck 151 ) Is inserted into the return ring 121 located in the control hole 125.

3 is an enlarged cross-sectional view of the bracket of the present invention, a state of complete restoration of the tactile sense, FIG. 3a is a state diagram of restoring the tactile sense of FIG. 3, and FIG.

The threaded portion 131 of the ring opening 1390 penetrating to one side of the outer cylinder 110 of the mechanical pencil 100 is coupled to the bracket 120 for guiding the movement of the tactile 200 of the mechanical pencil, The upper end of the knob 160 is coupled to the shimtong pipe 150 in a state in which the chuck 151 located at the tip of the shimtong pipe 150 bites the tactile 200 in the inner ring 130 by pressing the knob. A stop jaw 124 is formed to move forward and the extraction ring 123 is caught when passing through the extraction ring 123, and the chuck 151 that is out of the extraction ring 123 is opened with its own elastic control hole 125 ) Is formed.

When the knob 160 is released, the coil spring 133 that is compressed by the chuck connector 152 is restored and the core pipe 150 is moved to its original position so that the tip chuck 151 passes through the extraction ring 123. When retracted is inserted into the ring ball 130.

When the knob 160 is pressed deeply again, the chuck 151 penetrates through the extraction ring 123 of the extraction hole 122 of the bracket 120 and is inserted into the return ring 121 of the control hole 125. Is asked. In this case, when the knob 160 is released, the chuck 151, which is biting the tactile 200, is pushed backward by the resilient restoring force of the coil spring 133 and the return spring 157 that have been compressed. The extraction hole 122 is moved from the 125 to the extraction ring 123, and the extraction ring 123 is inserted into the ring hole 130 to form a state in which the tactile 200 is returned.

As described above, the present invention puts a step on the degree of depressing of the knob, and puts the chuck's gradual movement space, the extracting ring and the returning ring in the bracket so that the touch is extracted with a short press of the knob, and the knob is pressed deeply. This method has the advantage of freeing the handling of the tactile sensation by preventing the tactile cutting in the process of restoring the tactile sensation, and shows the protective effect of the tactile tip, and particularly the impact of the hammer spring and the hamma spring on the tubular pipe. It is an advantage that the extraction of the tactile by the hammer member made of a chuck connecting portion to be delivered by the shaking motion of the outer cylinder to facilitate the use of the mechanical pencil.

Claims (4)

And a bracket having a normal tactile feeling, a thick cylinder suitable for gripping by hand with a core pipe for storing the tactile inside, and a hole installed at the tip of the body to induce the withdrawal and return of tactile feeling; An extraction ring for extracting tactile feeling in a state of being coupled and separated at the rear end of the chuck, a return ring for returning tactile feeling in a state of being coupled and separated at the front end of the chuck, and a ring hole located in a ring which is elastically installed at the tip of the core pipe. A mechanical pencil consisting of a chuck configured to guide the withdrawal and return of the touch when entering and exiting, and the hammer spring slides between the chuck connector and the knob of the core pipe. The mechanical pencil of claim 1, wherein the chuck is configured to be connected to a ring tool located at the tip of the core pipe through the ring tool and the coil spring. The mechanical pencil of claim 1, wherein the hammer spring has an inner diameter larger than the diameter of the core pipe, and is heavier than the coil spring. The mechanical pencil of claim 1, wherein a return spring is provided between the chuck connector and the knob to provide elasticity to the knob upon return of the haptic.