KR20190027432A - Writing tool with opening and closing inner cap of sealing function - Google Patents

Abstract

The present invention relates to a writing instrument and, more specifically, to a writing instrument having an airtight openable inner cap, wherein a cap, which can be opened and closed in accordance with movement of a pen tip, is disposed in a case to prevent air from coming in contact with volatile ink. According to an embodiment of the present invention, a writing instrument having an airtight openable inner cap enables an openable inner cap to be disposed in the case to prevent loss of the cap while minimizing ink loss due to vaporization of liquid ink even when the writing instrument is not in use. Moreover, user inconvenience of cap can be prevented.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument having an air-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a writing instrument, and more particularly, to a writing instrument having an opening / closing type inner stopper having an airtight function to prevent air contact of volatile ink by providing a cap which can be opened and closed according to movement of a pen tip.

Writing instruments can be classified into two types, one is to use a dry solid charcoal such as a pencil or a solid core for writing black-charcoal, and the other to use an aqueous or oily liquid as a writing ink such as a ballpoint pen, a highlighter or a fountain pen. In a writing instrument using ink, ink is discharged to the outside through a pen tip including a fine diameter discharge port, ink is stuck on a writing paper such as paper according to the trajectory of a pen tip to be moved by the user, .

However, since such an ink is volatile, ink may be lost due to vaporization if it comes into contact with outside air for a certain period of time, or the ink adhering to the tip of the pen may be hardened, which may interfere with the ink discharge of the pen tip. In order to prevent the pen tip from being exposed to the air when the user does not use the pen tip, a separate case cap is placed over the liquid pen for using the ink. . However, when the case stopper is separated from the case to use the writing stopper, it is difficult to store the case stopper. In the case of losing the case stopper, the pen tip is inevitably exposed to the air. There arises a problem of a rapid decrease.

In order to solve such a problem, conventionally, a writing instrument having an integrated lid on the outside of the case has been proposed, such as a registered trademark of Korean Utility Model Registration No. 20-0330916 (a writing instrument having an integral lid). 1 is a view showing a conventional writing instrument provided with an integral lid on the outside of the case. Referring to FIG. 1, a conventional writing instrument includes a lid which is fixed to an outer case for protecting a pen shim and is configured to be rotatably opened and closed. According to this conventional technique, since the lid of the writing implement is integrally coupled to the outer case, the possibility of losing the lid is minimized. However, in the case of using a writing instrument by opening the lid, since the opened lid may make writing difficult, the usability of the writing instrument may seriously be deteriorated.

Registration Practical Utility Model No. 20-0330916 (October 22, 2003)

Disclosure of the Invention The present invention has been made to solve the above problems, and it is an object of the present invention to provide an air conditioner having an air conditioner having an air conditioner having an airtight inner cap capable of closing air contact of volatile ink, The purpose is to provide a writing instrument.

In order to solve the above-mentioned problems, the writing implement provided with the closing-type inner stopper of the present invention includes a case, a pen case inserted in the case and capable of writing by discharging the liquid ink, And a front end of the pen nib is closed while the pen nib is positioned inside the case and while the pen nib is discharged outside the case, And may include an inner closure assembly that is open.

The liquid ink may be an oily or aqueous ink.

The case may be made of plastic or a metal material.

The pen assembly may further include a resilient spring that is fitted in a spiral shape around the pen tip and provides elasticity to return backward after the pen tip is moved forward.

The inner stopper assembly includes a cylindrical stopper body capable of receiving the pen tip therein, a circular inner stopper attached to a part of an upper edge of the stopper body to open or close the stopper body according to the movement of the pen tip, And a connection line connecting the inner cap and the pen core assembly.

The inner cap may be made of a soft plastic material or a coated metal material.

The connection line may comprise a plurality of lines connected to the pen core assembly.

The connecting line may have a detachable structure on the upper surface of the inner stopper.

The connection line may be made of plastic or metal.

In addition, the present invention provides a writing implement having a case, comprising a case, a pen-type assembly inserted into the case and capable of writing by ejecting liquid ink stored in the case through a pen tip, The pen nib is housed inside the case and the front of the nib is closed while the nib is positioned inside the case and the front of the nib is opened while the nib is discharged outside the case An inner cap assembly.

The writing instrument having the closing cap type inner stopper according to the embodiment of the present invention is provided with the inner stopper which can be opened and closed in the case so that the ink loss due to vaporization of the liquid ink is minimized even when the writing instrument is not used, There is an effect that the risk of loss can be solved and the inconvenience of use due to the stopper can be prevented.

1 is a view showing a conventional writing instrument provided with an integral lid on the outside of the case,
FIG. 2 is an exploded perspective view of a writing implement provided with an openable and closable inner stopper of an airtight function according to an embodiment of the present invention, FIG.
FIG. 3 is a view showing an inner stopper assembly of a writing implement having an enclosed inner stopper according to an embodiment of the present invention. FIG. 3 (a) is a view showing a closed state of an inner stopper, In the drawings,
FIG. 4 is a perspective view illustrating a state in which the inner stopper assembly and the pen core assembly are engaged with each other, and FIG. 4 (a) is a perspective view illustrating a coupling structure of the inner stopper assembly and the pen core assembly, according to an embodiment of the present invention. FIG. 4B is a view showing a state in which a combination of the inner stopper assembly and the pen core assembly is completed, FIG. 4C is a view showing a case where a pen is used in a state where the inner stopper assembly and the pen core assembly are engaged,
FIG. 5 is a view illustrating a state in which a writing instrument having an openable and closable inner stopper according to an embodiment of the present invention is assembled. FIG. 5A is a view showing a state in which an inner stopper is closed, Fig.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. As used in the specification, the term " comprising " embodies certain features, areas, integers, steps, operations, elements, and / or components and does not exclude other specific characteristics, And / or does not exclude the presence or addition of a group.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

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

FIG. 2 is an exploded perspective view of a writing implement having an airtight inner stopper of an airtight function according to an embodiment of the present invention. Referring to FIG. 2, the writing instrument 100 of the present invention may include a case 110, a pen core assembly 120, and an inner stopper assembly 130.

The case 110 may have a cylindrical or triangular cross-sectional structure such that the core assembly 120 and the inner stopper assembly 130 can be inserted therein. At this time, the front portion is formed with an exposure hole through which the pen tip 124 can protrude, and the rear portion is formed with a groove through which the handle portion of the pen core assembly 120 can be exposed. A side fixing groove is formed on one side of the surface of the pen assembly 120 adjacent to the handle so that the pen tip can be fixed in a state in which the pen tip is exposed by pressing the handle of the pen assembly 120. The structure of the case 110 is similar to that used in a conventional writing instrument. However, the inner diameter of the case 110 can be variously changed according to the type and size of the pen core assembly 120 inserted therein. The case 110 may be made of plastic or metal.

The pen core assembly 120 includes a pen core 122 having an elongated cylindrical shape in which ink is mounted, a pen tip 124 attached to an end portion of the pen core 122 so as to be able to write characters by discharging ink, And a resilient spring 126 that is fitted in a spiral-shaped structure around the circumference of the pen tip 124 to provide a resilient force that moves the pen tip 124 forward and backward. Since the pen tip 124 is generally smaller than the diameter of the pen tip 122, it is possible to provide a space in which the elastic tip 126 can be fitted around the pen tip 124, So that it does not move to the portion corresponding to the pen core 122 by being caught by the pen tip 124. [ A connecting line fixing groove 128 may be formed at a portion where the pen tip 124 and the pen core 122 abut each other so that the connecting line 136 extending from the inner stopper assembly 130 can be fixed.

In this case, the pen assembly 120 and the case 110 are generally manufactured as individual components, but they may be integrally formed to have a structure capable of injecting ink from the back of the pen assembly 120 toward the inside thereof.

The inner cap assembly 130 may be located at the pen tip 124 and engage the pen core assembly 120. The inner stopper assembly 130 includes an inner stopper 134 formed on the upper portion of the stopper body 132 and the stopper body 132 and a stopper 134 for mechanically connecting the inner stopper assembly 130 and the penenter assembly 120 (Not shown).

The cap body 132 is formed in a cylindrical shape so that the pen nib 124 is fitted into the lower groove, and an inner cap 134 is attached to a part of the rim of the upper groove. The inner stopper 134 is circular so that a portion of the circular stopper 134 is attached to the rim of the upper groove of the stopper body 132. At this time, the inner stopper 134 may be integrally attached to the upper portion of the stopper body 132, or may be detachable through the engagement groove. When the user presses the handle of the pen assembly 120 to use the pen 100 of the present invention, the pen tip 124 pushes the inner cap 134 while moving forward through the lower groove of the cap body 132 And the portion of the inner stopper 134 that is not attached to the stopper body 132 opens forward. In this process, the inner stopper 134 may cause friction with the end portion of the pen tip 124, so that the surface of the inner stopper 134 may be soft plastic or a surface It may be desirable to construct the inner stop 134 with this coated metal.

The connecting line 136 is inserted into a protrusion or groove formed in the upper portion of the inner stopper 134 or integrally attached to the upper portion of the inner stopper 134, The line stopper 138 is fitted into the connecting line fixing groove 128 formed in the pen core assembly 120. [ As a result, as the pen core 122 moves forward or backward, the opening or closing operation of the inner stopper 134 can be interlocked.

When the pen tip 122 and pen core 122 are moved backward by the elastic spring 126 when the pen tip 122 is returned to the inside of the case 110 after the user finishes using the writing implement 100, The inner cap 134 is also pulled backward by the connection line 136 attached to the inner body 132 to close the inner body 132. [ Therefore, when the writing instrument 100 of the present invention is not used, the pen tip 124 returns to the inside of the case 110, and the inner stopper 134 closes the stopper body 132, Thereby preventing air from being in contact with the ink. The connection line 136 may be made of a metal such as elongated plastic or wire.

Hereinafter, the use structure of the writing instrument 100 having the inner stopper according to the present invention will be described in more detail with reference to the inner stopper assembly 130.

FIG. 3 is a view showing an inner stopper assembly of a writing implement having an enclosed inner stopper according to an embodiment of the present invention. FIG. 3 (a) is a view showing a closed state of an inner stopper, Fig. 3A and 3B, the diameter of the through-hole 132a of the stopper body 132 is set so that the pen tip 124 can be inserted through the through-hole 132a formed in the inner stopper assembly 130, 124). ≪ / RTI > An inner stopper 134 is formed at an upper portion of the stopper body 132 to open or close the stopper body 132 as the pen tip 124 moves.

When the user moves the pen tip 124 forward for use of the writing instrument 100 and protrudes outside the case 110, the inner stopper 134 opens the stopper body 132. On the other hand, when the writing instrument 100 is used and the pen tip 124 returns to the inside of the case 110, the internal stopper 134 closes the stopper body 132. For this purpose, the internal stopper 134 is rotated together with the return of the pen nib 124 so that the internal stopper 134 can close the stopper body 132 in the course of returning the pen nib 124 to the inside of the case 110. [ It is necessary to interlock the inner stopper 134 with the movement of the pen tip 124. [ That is, a part of the connection line 136 is coupled to the upper portion of the inner stopper 134 and extends along the connection line guide groove 133 formed on the side of the stopper body 132, (138) is coupled to the connecting line fixing groove (128) formed on the side surface of the pen core (122). Although the connecting line stopper 138 is formed in two strands so as to be coupled to the connecting line fixing groove 128 formed on the side surface of the pen core 122, The line 136 may consist of one strand, or may be formed of two strands or more than three strands. The engaging protrusion 134a may protrude from the lower surface of the inner stopper 134 so as to be inserted into the through hole 132a of the stopper body 132. [ When the inner stopper 134 returns to cover the stopper body 132, the engaging protrusion 134a is engaged with the stopper body 134. In this case, (132a) of the stopper (132) to effectively seal the stopper body (132).

FIG. 4 is a perspective view illustrating a state in which the inner stopper assembly and the pen core assembly are engaged with each other, and FIG. 4 (a) is a perspective view illustrating a coupling structure of the inner stopper assembly and the pen core assembly, according to an embodiment of the present invention. FIG. 4B is a view showing a state in which the inner stopper assembly and the pen core assembly are completely engaged, and FIG. 4C is a view illustrating a case where a pen is used in a state where the inner stopper assembly and the pen core assembly are engaged. Hereinafter, the internal construction of the writing implement 100 of the present invention will be described.

The pen core assembly 120 includes a pen tip 122 and a pen tip 122. The pen tip assembly 120 includes a pen tip 122 coupled to the pen tip 122 and an elastic spring 126 are inserted. In this state, the pen tip 124 of the pen core assembly 120 can be inserted into the inner stopper assembly 130 so as to be in close contact with the inner surface of the inner stopper assembly 130. The portion where the pen tip 124 is inserted into the inner stopper assembly 130 will be the lower groove of the stopper body 12. [ An upper part of the stopper body 132 is formed in a circular shape surrounding the upper circular rim of the stopper body 132 so that only a part of the upper circular rim of the stopper body 132 is attached, ). Therefore, when the pen tip 124 moves forward, the inner cap 134 is opened by the movement of the pen tip 124, and when the pen tip 124 returns to the rear, the inner cap 134 is closed . At least one connection line 136 is attached to the upper or side surface of the inner cap 134. The connection line 136 may be configured to be detachable from the groove formed in the inner stopper 134 or may be fixedly attached to one surface of the inner stopper 134. A connecting line stopper 138 extending from the mating surface of the inner stopper 134 is coupled to the connecting line fixing groove 128 formed on the side surface of the pen stem 122 for interlocking with the nib assembly 120. The length of the connecting line 136 may be determined so that the inner stopper 134 can be closed in consideration of the distance between the inner stopper 134 and the side coupling area of the pin 122.

4B shows a state in which the connection line stopper 138 is coupled to the connection line fixing groove 128 formed on the side surface of the pen core 122. As shown in FIG. When the writing instrument 100 having the opening and closing type inner stopper according to the present invention is not used, the pen tip 124 is moved backward and the inner stopper 134 located at the upper portion of the pen tip 124 is inserted into the stopper body 132 So as to close the space where the pen tip 124 is located. This is because the elastic spring 126 surrounding the pen nib 124 is inserted into the stopper body 132 to push the side of the pen core 122 and the inner stopper 134 The inner cap 134 is closed because the connection line 136 connecting the inner cap 134 is tightly pulled.

4C shows a state in which the pen nib 124 is moved forward for use of the writing implement 100 in a state where the inner cap assembly 130 and the pen core assembly 120 are engaged. The pen tip 124 is moved forward by the user pushing the handle of the pen stem 122 forward and the pen tip 122 supporting the elastic spring 126 and the elastic spring 126 The pen nib 124 can advance by a certain distance. Due to forward movement of the pen tip 124, the inner stopper 134 opens the stopper body 132, and the pen tip 124 protrudes forward by the movement distance. At this time, as the pen tip 124 moves forward, the side surface of the pen core 122 to which the connection line 136 is coupled is close to the inner stopper 134, so that the connection line 136 is relaxed and bent. However, since the connection line stopper 138 is coupled to the connection line fixing groove 128 formed on the side surface of the pen core 122, the connection line 136 connecting the internal stopper 134 and the pen core 122 is not separated And maintains the connection state. When the pen tip 124 returns to the rear after the use of the writing instrument 100 is completed, the elastic stopper 126 moves the inner stopper assembly 130 forward and the connection line 136 is pulled back The inner stopper 134 is closed as shown in FIG. 4B, and the inner stopper assembly 130 and the core assembly 120 are tightly connected.

FIG. 5 is a view illustrating a state in which a writing instrument having an openable and closable inner stopper according to an embodiment of the present invention is assembled. FIG. 5A is a view showing a state in which an inner stopper is closed, Fig.

First, referring to FIG. 5A, the inner stopper assembly 130 and the pen core assembly 120 are positioned inside the case 110 in a combined state. The handle portion of the pen stem assembly 120 is positioned in close contact with the inside of the back of the case 110 and the user can push the pen tip 124 out of the case 110 by pressing the handle. On the other hand, the inner stopper assembly 130 is positioned in close contact with the inner front of the case 110 with the pen tip 124 fitted in the stopper body 132. At this time, since the inner cap 134 is pulled in a state where the connection line 136 is coupled to the side surface of the pen core 122, the cap 122 maintains the closed state in which the pen tip 124 is not exposed to the air.

When the user presses the grip portion of the pen core assembly 120, the pen tip 124 is exposed to the outside of the case 110, and this state is maintained by the fixing groove formed on the side surface of the case 110. The pen nib 124 is discharged to the outside of the case 110 while the elastic stopper 126 is compressed and the inner stopper 134 is opened. Since the opened inner stopper 134 is opened in the case 110, the user does not inconvenience or hinder the process of using the writing instrument 100 of the present invention. In this state, the connection line 136 is in a relaxed state, connecting the inner cap 134 and the side surface of the pen core 122.

The pen tip 122 is pushed backward by the elastic spring 126 when the user presses the grip portion of the pen tip assembly 120 again and the tip tip 124 returns to the inside of the case 110. [ At this time, as the pen tip 124 returns to the inside of the cap body 132, the inner cap 134 is closed and the connection line 136 pulls the inner cap 134 and the side surface of the pen cap 122 tightly, Thereby maintaining the closed state of the valve 134. Therefore, when the pen tip 124 is positioned inside the stopper body 132, the inner stopper 134 is closed so that the contact with the air is blocked, and as a result, the occurrence of vaporization or hardening of the ink is minimized Can be imported.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, . Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Writing tool 110: Case
120: a pincer assembly 122: a pincer
124: nib 126: elastic spring
128: connection line fixing groove 130: inner stopper assembly
132: plug body 132a: penetrating groove
133: connection line guide groove 134: inner stopper
134a: coupling projection 136: connecting line
138: Connection line stopper

Claims (11)

In writing instruments,
case;
A pen core assembly inserted in the case and capable of being handwritten by discharging the liquid ink mounted therein through a pen tip; And
The front of the pen tip is closed while the pen tip is positioned inside the case, and when the pen tip is ejected to the outside of the case, CLAIMS We claim: 1. A writing implement having an enclosed inner closure of an enclosure comprising an inner closure assembly that is open.
The method according to claim 1,
Wherein said liquid ink is an oil-based or water-based ink;
The method according to claim 1,
Wherein the case has an openable and closable inner stopper made of plastic or metal material.
The method according to claim 1,
Wherein the pen core assembly is fitted so as to surround the pen nib spirally around the pen nib, and further comprising an elastic spring for providing elasticity of returning backward after the nib is moved forward.
The method according to claim 1,
Wherein the inner stopper assembly includes: a cylindrical stopper body capable of receiving the pen tip therein;
A circular inner cap attached to a part of the upper rim of the cap body to open or close the cap body in accordance with movement of the pen tip; And
And a connection line connecting the inner cap and the pen core assembly.
6. The method of claim 5,
Wherein the inner stopper has an airtight inner stopper of an airtight function, the surface of which the pen tip is contacted is made of a soft plastic material or a coated metal material.
6. The method of claim 5,
And the connection line includes an openable and closable inner stopper of a sealing function formed of a plurality of lines connected to the pen core assembly.
6. The method of claim 5,
Wherein the connection line has an opening-and-closing type stopper of an airtight function to which a stopper formed at a terminating end is coupled to a fixing groove formed on a side surface of the pen assembly.
6. The method of claim 5,
Wherein the connection line has an inner cap which is configured to be detachable from the upper surface of the inner cap and which has a sealing function.
6. The method of claim 5,
Wherein the connection line has an internal-stopper of an enclosed function of plastic or metal material.
In the assembly type writing instrument provided with the case,
A pen core assembly inserted in the case and capable of being handwritten by discharging the liquid ink mounted therein through a pen tip; And
Wherein the pen tip is accommodated inside the case and the front of the pen tip is closed while the pen tip is positioned inside the case and while the pen tip is being discharged outside the case, CLAIMS What is claimed is: 1. A writing implement comprising a closure assembly having an enclosed inner closure.

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