KR101413401B1 - Ink cartridge for writing - Google Patents

Abstract

The present invention relates to an ink cartridge for a writing instrument and, more particularly, to an ink cartridge for a writing instrument including the handle part of an injector-shaped cartridge, which is used by filling ink therein, to be able to be detached, thereby enabling the filling of more ink. As a technical tool for achieving the purpose, the present invention comprises: a case; a writing instrument point arranged on one end of the case; and a cartridge mounted in the case to supply ink to the writing instrument point. The cartridge comprises: a cylinder part having a cavity inside; an outlet arranged on one end of the cylinder part to discharge ink to be supplied to the writing instrument point; a piston part having a structure of reciprocating inside the cylinder part; and a handle part arranged at the other side of the piston part, wherein the handle part can be arranged to be able to be attached to and detached from the piston part.

Description

INK CARTRIDGE FOR WRITING [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ink cartridge for a writing instrument, and more particularly, to an ink cartridge for a writing instrument which is equipped with a handle of a syringe type cartridge which is filled with ink so as to be removable, .

There are various kinds of writing instruments. There is a writing instrument such as a pencil or the like having a core of graphite, and a writing instrument in which the inside is filled with ink. In general, a writing instrument for use with ink is provided with a cartridge for storing ink therein. In the case of replacing the cartridge itself when the ink inside is exhausted, . Fountain pens are a typical example of a form in which ink is injected into a cartridge.

The fountain pen is provided with a cartridge in which ink is stored, and a case is provided with a nip, and the ink stored in the cartridge is supplied to the nozzle through a narrow passage to be handwritten.

There are many types of cartridges that can be inserted into the fountain pens. Today, the most commonly used structure is a syringe type cartridge.

The syringe type cartridge is similar to the syringe shape, and when the ink is exhausted, the cartridge is separated from the fountain pen, the inlet portion is immersed in the container in which the ink is stored, and then pulling the handle pulls the inner piston backward, The ink is charged.

The syringe type cartridge basically has the same principle and structure as described above. Specifically, there are various shapes such as a structure in which the piston is retracted when the handle portion is rotated. As such, the syringe type cartridge is often used because of the convenience of charging. Many people use syringe-type cartridges because they can be filled with ink without any tools. Therefore, it is more convenient to use syringe cartridge Cartridges are in use.

However, most of the syringe type cartridges currently in use are structured such that the handle portion remains attached even after charging the ink. Accordingly, there is a problem that the case of the fountain pen must be long so that the capacity for filling the ink with the length of the handle is reduced or the handle is inserted. Therefore, if the handle portion can be removed after the ink is filled, the filling capacity of the ink can be increased. In addition, in the case of the cartridge having the same capacity, the length of the cartridge can be shortened to shorten the length of the fountain pen .

KR 10-0649594 A1 KR 10-0841863 A1

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an ink cartridge for a writing instrument capable of removing a handle when the pen is filled with ink, It has its purpose.

The present invention as a technical means for achieving the above object is a writing instrument comprising a case, a writing instrument provided at one end of the case, and a cartridge mounted inside the case and supplying ink to the writing instrument, A piston portion provided at one end of the cylinder portion and provided with a discharge port for discharging the ink to be supplied by the writing instrument and a reciprocating structure inside the cylinder portion and a handle portion provided on the other side of the piston portion, And the handle portion may be detachably attached to the piston portion.

In a preferred embodiment of the present invention, the piston portion is provided with one of a foresaw portion and an insertion port, and one end of the handle portion is provided with a port or port corresponding to the foresaw portion or the insertion port provided on the other side of the piston portion The insertion port may be detachably coupled while being inserted into the pawl portion by interference fit.

According to a preferred embodiment of the present invention, one of the female thread and the male thread is provided on the other side of the piston, and one end of the handle is provided with a female screw or a female screw corresponding to the female screw or male screw provided on the other side of the piston, The male screw can be detachably coupled while screwing it.

In a preferred embodiment of the present invention, the cartridge is integrally formed with the lower case, and the handle portion provided on the cartridge can be detachably coupled to the piston portion of the cartridge.

The ink cartridge for a writing implement according to the present invention has an effect that a larger capacity of ink can be charged into the cartridge since the handle portion can be separated after the cartridge is filled with ink. In addition, when the ink of the same capacity is filled, the length of the cartridge can be reduced by the length of the handle compared to the conventional syringe type cartridge, so that the length of the fountain pen on which the cartridge is mounted can be shortened.

1 is a view showing a state in which an ink cartridge for a writing implement according to the present invention is mounted on a writing implement;
2A is a view showing a configuration of the ink cartridge for a writing implement shown in Fig.
Fig. 2B is a view showing a state in which a handle portion is coupled to a piston portion of the ink cartridge for a writing instrument shown in Fig. 1; Fig.
Fig. 3 is a view showing a state in which ink is filled in the ink cartridge for writing utensils shown in Fig. 1; Fig.
4 is a view showing still another embodiment of the ink cartridge for a writing implement according to the present invention.
5 and 6 are views showing still another embodiment of an ink cartridge for a writing implement according to the present invention.

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

Fig. 1 is a view showing a state in which an ink cartridge for a writing instrument according to the present invention is mounted on a writing instrument, Fig. 2a is a view showing a configuration of the ink cartridge for writing instrument shown in Fig. 1, Fig. 3 is a view showing a state in which ink is filled in the ink cartridge for writing utensils shown in Fig. 1. Fig.

1, the ink cartridge for a writing instrument according to the present invention may include a case 110, a handwriting 130, and a cartridge 150. Referring to FIG. The case 110 may include an upper case 113 and a lower case 115. Herein, the upper and lower portions are the same with reference to the drawing, and so on. In addition, although the fountain pen is described as an example in the description and drawings of the present invention, it is not limited to a fountain pen for convenience of explanation, and may be applied to various writing instruments as long as the writing instrument is charged with ink.

The upper case 113 is opened at one side and closed at the other side, and the inside of the upper case 113 is generally hollow to secure a space for inserting the cartridge 150 and to reduce the weight. The lower case 115 has a structure in which the writing tip 130 is provided at one end and the cartridge 150 is inserted at the other side. Is generally made of hollow. However, the structure of the case 110 shows an example of a writing instrument which is generally used in the related art, and it is a matter of course that design changes can be made in a variety of structures as long as the writing instrument is filled with ink.

The handwriting 130 is a place where ink is actually supplied from the cartridge 150 to be described later. In the drawing, the handwriting 130 of the fountain pen is shown as an example, but a ball- 130) may be applied.

Referring to FIG. 2, the cartridge 150 includes a hollow cylinder portion 153 and a discharge port 151 provided at one end of the cylinder portion 153 for discharging ink supplied through the writing needle 130, A piston portion 155 provided to reciprocate inside the cylinder portion 153 and a grip portion 157 provided on the other side of the piston portion 155. Thus, the overall shape is composed of a syringe and an irregular shape. The syringe type cartridge 150 as described above is similar in basic structure to the cartridge 150 that is conventionally used in fountain pens and the like, and a detailed description thereof will be omitted.

The most characteristic feature of the present invention is that the handle 157 can be detached from the piston. Thus, as shown in Fig. 1, the handle portion 157 can be detached from the cartridge 150 when the cartridge 150 is mounted on the writing instrument.

The method of detachably configuring the handle portion 157 from the cartridge 150 may be various methods. For example, as shown in FIG. 2, a foresight portion 160 is provided on the other side of the piston portion 155 provided inside the cylinder, and an insertion port 165 is provided at one end of the handle portion 157, So that the foresight portion 160 and the insertion port 165 are forcedly fitted.

The foreshaft portion 160 may be formed to have a narrower inlet than the inner portion, a hollow portion having a small circular shape at the inlet portion, a hollow portion having a wider width toward the inner side, and a narrower width again. The insertion port 165 may be formed of a sphere corresponding to the foresight portion 160. That is, the diameter of the center portion may be formed to be somewhat larger than the diameter of the hole formed at the entrance portion of the foresight portion 160. The insertion port 165 may be inserted into the foresight portion 160 when the insertion port 165 is pressed against the foresight portion 160 by a predetermined level or more. On the contrary, if the foresight portion 160 and the insertion port 165 are pulled with a certain force or more, the insertion port 165 can be separated from the foresight portion 160. At this time, the foresight portion 160 or the insertion port 165 may be more efficiently combined or separated when the flexibility is somewhat flexible. In addition, if necessary, both sides of the foresaw portion 160 in the longitudinal direction (vertical direction in the drawing) may be cut so that the incision portion can be detachably attached to the insertion portion 165 when the insertion portion 165 is pushed or pulled out. The configuration of the forescap portion 160 and the insertion port 165 described above is an example of a structure in which the insertion port 165 is most efficiently coupled to the foresight portion 160 and can be separated. Therefore, the configuration of the insertion portion and the ported portion is not necessarily limited to the shape shown in the drawings, and if necessary, the ported portion having an elliptical shape or a polygonal shape such that the entrance is narrower than the inner side, It will be apparent to those skilled in the art that design modifications are possible. Here, the corresponding structure means that the inside of the forescap portion 160 is formed of the shape of the insertion port 165 or the shape of the sphere when the hollow portion is made of a spherical shape.

Although the pawl part 160 is provided on the other side of the piston and the insertion port 165 is provided at one end of the handle 157 in the figure, the pawl part 160 and the insertion port 165 Of course, the positions may be opposite to each other. That is, it is needless to say that the foreshaft 160 may be provided on the handle 157 and the insertion port 165 may be provided on the other side of the piston.

Referring to FIG. 3, when the cartridge described above is filled with ink, the discharge port 151 formed at one end of the cartridge 150 is dipped in the ink container 10, and then the handle is pulled. Then, as the piston 155 moves upward, the interior is evacuated and the ink in the ink container 10 is pushed into the interior of the cartridge 150. When the cartridge 150 is completely filled with ink, the handle is pulled hard so as to separate the handle. Since the other side of the cylinder part 153 is formed to be narrower than the diameter of the piston part 155, the piston part 155 is fixed so that it can no longer move outward from the other end of the cylinder part 153. Therefore, when the pull tab 157 is pulled hard to a certain level or more, the insertion hole 165 is pulled out from the foresight portion 160 and the pull tab is separated. When the handle 150 is coupled to the cartridge 150, that is, when the cartridge 150 is completely exhausted, the cartridge 150 is detached from the writing instrument and the handle 157 is moved to the other side of the piston 155 Direction. The piston portion 155 easily moves inside the cylinder portion 153 so that the grip portion 157 is completely engaged with the piston portion 155 until the piston portion 155 contacts one end of the cylinder portion 153 It moves in a state that it is not in the state. However, once the piston part 155 comes into contact with one end of the cylinder part 153 and can not move any more, a force of more than a certain level is applied to the knob part 157 to move the knob part 157 to the piston part 155 < / RTI > When the handle 157 is coupled to the piston 155, the piston 155 can be moved by pulling the handle 157 after the end of the cylinder 153 is immersed in the ink as described above.

4 is a view showing another embodiment of the ink cartridge for a writing implement according to the present invention.

4, in order to detachably connect the handle 157 to the piston 155, a female screw 167 and a male screw 169 structure may be applied to the ink cartridge 150 for a writing implement according to the present invention . As shown in the drawing, a male screw 169 is provided on the other side of the piston 155, and a female screw 167 is provided at one end of the knob 157, so that the female screw 167 and the male screw 169 And the piston portion 155 and the knob portion 157 are engaged with each other. It is needless to say that the positions of the female screw 167 and the male screw 169 can be changed.

The present invention is not limited to the illustrated embodiment, but may be applied to a case in which the piston 155 and the handle 157 are coupled to each other by using the foresight portion 160, the insertion port 165, A variety of well-known structures can be applied.

5 and 6 are views showing still another embodiment of the ink cartridge for a writing implement according to the present invention.

Referring to FIG. 5, the ink cartridge for a writing implement according to the present invention may be configured such that a cartridge 150 for storing ink is integrally formed with a lower case 115. That is, the cartridge 150 is not integrally detachable from the lower case 115, but the cartridge 150 is integrally provided in the lower case 115 provided with the handwriting 130, And is detachably attachable to and detachable from the cartridge 150 as described above. When the ink of the writing instrument is exhausted, the upper case 113 is detached and the knob part 157 is pushed into the hole formed at the other end of the cartridge. Then, the writing instrument 130 and the lower case 115 If the handle is pulled after a part of the ink is immersed in the ink, the ink flows into the cartridge 150 through the writing needle 130.

The manner in which the cartridge 150 and the lower case 115 are coupled to each other and the specific shape thereof are not limited to the structure shown in the drawings, and various design changes can be made.

Referring to FIG. 6, the cartridge 150 is configured integrally with the lower case 115, and the cartridge 150 also serves as an upper case. That is, the inside of the cartridge 150 is composed of the cylinder and the piston as described above, and the other end is detachably coupled to the piston portion by inserting the handle portion, and the outer design is made of the design of the upper case. Therefore, when the ink is exhausted, it is not necessary to separate the upper case and the cartridge, so that one end of the writing instrument is immersed in the ink container and the handle is attached to the other end so that ink can be introduced into the cartridge and then the handle can be used immediately. The external configuration of the cartridge may be variously formed according to the design of the fountain pen, and a cap may be attached to the other end of the cartridge if necessary.

Although the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be defined by the appended claims and equivalents thereof.

110: Case
130: Handwriting
150: Cartridge
153:
155:
157:
160:
165:

Claims (4)

A writing instrument comprising a case composed of an upper case and a lower case, a writing instrument provided at one end of the case, and a cartridge mounted inside the case and supplying ink to the writing instrument,
The cartridge is provided with a cylinder portion having an internal hollow portion, a piston portion provided at one end of the cylinder portion and having a discharge port through which the ink supplied by the writing instrument is discharged, and a piston reciprocating inside the cylinder portion, A handle portion,
And the handle portion is detachably attached to the piston portion.
The method according to claim 1,
Wherein the pistons are provided with one of a foresaw portion and an insertion port on the other side of the piston portion, and a mouthpiece or a potting port corresponding to the forescap portion or the insertion port provided on the other side of the piston portion is provided at one end of the handle portion, And the ink cartridge is detachably coupled to the ink cartridge while being inserted into the ink cartridge.
The method according to claim 1,
Wherein one end of the piston is provided with a female screw or a male screw and a male screw or a female screw corresponding to the male screw or male screw provided at the other side of the piston is provided at one end of the knob, And the ink cartridge is connected to the ink cartridge.
The method according to claim 1,
Wherein the cartridge is integrally formed with the lower case, and the handle of the cartridge is detachably attached to the piston of the cartridge.

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