KR200148357Y1 - Writing utensil - Google Patents

Abstract

The present invention is to provide a writing instrument having a simple structure for preventing the writing of pens such as a sign pen or a magic pen having a pen tip adsorbed with ink and preventing ink from getting on the hand. The writing instrument is fixed to the fixing rings 20 and 22, which are fixed to the fixing body 38, which is fixed to the two fixing rings 20 and 22, to the writing instrument fuselage tip 12. (38) Combining the cap (3) having three protrusions (34) formed in the projection to be able to move forward and backward. Guide caps 36 and guide grooves 19 are formed on the inner circumferential surface of the main body 30 and the writing instrument fuselage tip 12, respectively, so that the caps are moved back and forth in a straight line. Forming an elastic film on the incision surface of the can facilitate the sealing action.

Description

Writing utensils

1 is a partially exploded perspective view of the writing instrument according to the present invention.

2 is a perspective view of a writing instrument according to the present invention.

3 is a longitudinal sectional view of FIG.

4 is a cross-sectional view showing the process of opening the cap.

5 is a cross-sectional view of the state of use.

6 is a sectional view taken along the line A-A of FIG.

7 is a plan view from above of FIG.

8 is a plan view from above of FIG.

* Explanation of symbols for the main parts of the drawings

1: writing instrument fuselage 3: cap

10: writing unit body 12: fuselage tip

14: central hole 15: pen tip

16: pen tip insertion hole 18: guide

19: guide groove 20: rear fixing ring

21: guide groove 22: front fixing ring

23: sealing groove 24: fixing groove

30: cap body 32: incision

34: incision piece 35: incision tip

36: guide projection 38: fixed piece

39: sealing lip 40: hole

The present invention relates to a writing instrument, and more particularly, to a writing instrument including a pen body in which a pen tip is inserted and fixed and a cap coupled to the body tip. The present invention can be used in ballpoint pens, sine pens, magic pens, etc., but is particularly advantageous for writing instruments such as sipen or magic pens in which a pen tip adsorbed with an aqueous or oily ink that is easily volatilized is exposed to the outside.

Writing instruments such as sign pens and magic pens have a pen tip that protrudes ink at the tip, and when exposed to the outside for a long time, the ink adsorbed on the pen tip evaporates and coagulates, preventing the ink from flowing. Problems have arisen, so a separate cap is used to prevent evaporation of the ink. In addition, the writing instruments of the type described above have at least 1 mm of pen tips adsorbed with ink. As it is exposed to about 2-3mm outside, the ink of the pen tip is buried in the inner circumference of the cap when it is capped and transferred to the fuselage tip of the writing instrument. There was also a problem.

In order to improve the shortcomings of the conventional writing instruments, the inner cap installed inside the writing instrument without the use of a separate cap to seal the pen tip without installing a separate cap by installing a sealing inner cap to open and close the inside of the body of the writing instrument Writing instruments have been developed to prevent volatilization of the ink adsorbed on the pen tip.

Korean Utility Model Publication No. 89-3644, Japanese Utility Model Publication No. 63-27381, and Japanese Utility Model Publication No. 47-20658 provide an internal cap that can be opened by splitting the tip of the writing instrument. Advance the core to the tip, pen tip opens the inner cap and protrudes out of the fuselage through the pen tip hole on the tip of the fuselage. When the core is retracted, the inner tip of the cap is combined while the pen tip moves backward behind the inner cap. Writing instruments that are intended to be described.

Writing instruments of the above-described type is made by the compression spring supported by the rear end of the inner cap of the pen core, the forward and backward operation of the pen core using such a compression spring is essentially a notch that is fixed after the core is reversed The device shall be installed at the rear end of the writing instrument.

Since the writing instruments of the above-described type have to insert a spring into the fuselage and install a notch device, the structurally complicated parts attached to the notch device must be installed at the rear part of the fuselage, so the production cost is high, and thus a sign pen or magic pen which is mainly used for one-time use The back has a problem that is difficult to use. In addition, the writing instrument described above has a problem that it is difficult to use a sign pen having a pen tip that is easy to wear because the pen tip is worn and closed during opening and closing of the inner cap by the pen tip. Therefore, while being a simple structure, there is a need for a writing instrument that can be manufactured at a low cost while solving the problems of the conventional sign pen or magic pen.

An object of the present invention is to solve the problems caused by the installation of the spring or notch device, and to provide a writing instrument that can simply be penetrated without pen tip wear.

The object of the present invention described above is achieved by the writing instrument of the present invention, which is installed to be forward and backward without separating the cap divided into three portions at the tip of the writing instrument body.

The present invention is a pen tip is inserted into the tip and the writing body and the front and rear two fixing rings formed on the outer periphery and the front end is cut to separate into a plurality of incision pieces and the fixing piece coupled to the fixing ring of the writing instrument body on the inner peripheral surface It comprises a writing instrument having a cap coupled to be forward and backward to the front end of the fuselage.

According to the present invention, a groove is formed between the two fixing rings formed on the outer peripheral surface of the front end of the fuselage and the fixing piece is formed on the inner peripheral surface of the cap. The front fixing ring described above has three fixing grooves in which the distal end of the cutting piece is inserted and fixed to the front end surface, and has a sealing groove in which the sealing lip formed in the fixing piece is inserted and fixed in the rear end side surface. And the rear fixing ring was formed to be inclined front and rear surface and three guide grooves were formed in the longitudinal direction on the outer peripheral surface. In addition, the writing instrument body of the present invention has a cap guide portion behind the rear fixing ring, and the cap guide portion has a diameter smaller than that of the fuselage to form the same surface on the outer peripheral surface of the cap and the writing instrument body when the cap is closed. Guide grooves formed in line with the guide grooves of the rear fixing ring were formed. The aforementioned guide grooves serve to allow the cap to move forward and backward in a straight line when opening and closing the cap.

According to the present invention, the cap has a cylindrical rear end portion and a streamlined front end portion is cut in many, especially three incisions, so that the cut pieces are divided into three incisions. It is supposed to act as a seal. Three of the above-described incisions are most preferred, but may be two or four. Therefore, in order for each incision to be fully sealed, the material of the cap is formed of a polypropylene resin having excellent restoring force, but it is preferable to form a film of elastic material such as rubber on the incision. In addition, the fixing piece formed on the inner circumferential surface of the cap has a sealing lip protruding forward, and the fixing lip is inserted into the fixing groove as described above. And the inner end surface of the rear cylindrical portion of the cap was formed with a guide protrusion to move along the guide groove formed in the body.

The present invention can be used for writing instruments such as ball pens, sign pens, magic pens, but most preferably, writing pens are most advantageously used for sign pens and magic pens in which the pen tip is exposed to the outside and the ink remains adsorbed on the pen tip.

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

1 is a cross-sectional view of the main part in a state where the cap of the present invention is sealed, and the writing implement is composed of the writing actuator 1 and the cap 3.

The writing instrument body 1 is composed of a body 10 and a body tip 12 having a smaller diameter than the body, and has a central hole 14 inside which a pen core or ink is received, and the central hole 14 has a body tip. It was connected to the pen tip 15 insertion hole 16 formed at the end of (12). The fuselage tip 12 has a guide portion 18 having a narrower diameter than the main body at a portion adjacent to the main body 10 and having a guide groove 19 on the outer circumferential surface, and two front and rear parts protruding in a ring at regular intervals in front of the guide portion. It has the fixing ring 20, 22. The rear fixing ring 20 has a guide groove 21 arranged in a straight line with the guide groove 19 posted on the outer circumferential surface, and the front and rear surfaces are formed to be inclined, and at regular intervals in front of the rear fixing ring 20. The front fixing ring 22 formed to protrude has a circular sealing groove 23 at its rear end, and its diameter is almost equal to or slightly less than the diameter of the guide groove 20 of the guide part 18, Has two fixing grooves 24.

According to FIG. 7, the cap 3 is divided into three sections 34a, 34b, 34c divided by a cylindrical cap body 30 and the incisions 32a, 32b, 32c. Configured. The cap body 30 has a longitudinal guide protrusion 36 inserted into the guide grooves 19 and 21 of the writing instrument fuselage tip 12 on the inner circumferential surface thereof, and guides each of the cut pieces 34. On the inner circumferential surface, the fixing piece 38 was formed to protrude inward. The fixing piece 38 has a sealing lip 39 inserted into the sealing groove 23 of the front fixing ring 22 described above. The tip end 35 of each cut piece 34 described above is joined together to seal when the cap is sealed as shown in FIG. 3 and the fixing groove 24 of the tip end portion 12 of the writing implement body in the state in which the cap is opened as shown in FIG. ) Is fixed to the cap during use. If necessary, a coating layer made of an elastic material such as rubber may be formed on the cut portion 32 and the inner circumferential surface of the cut piece 34 so that the adjacent cut pieces 34 may be in close contact with each other when sealed. And if necessary, in order to promote the elastic action of the cut pieces 34, a hole 40 may be formed in the adjacent portion of the body of the cut pieces 34.

Hereinafter will be described the effect of the present invention.

1, 2, 3, and 7 show a state in which the cap 3 is closed, and the fixing piece 38 formed on the inner circumferential surface of each cut piece 34 of the cap 3 is fixed to the front and rear. The cap 3 is fixed by being seated in the groove between the rings 20 and 22, and the sealing lip 39 of the fixing piece 38 is inserted into the sealing groove 23 of the front fixing ring 22. Sealed and the incisions 32 at the incisions 32 are joined to each other to be sealed. When opening the cap while the cap 3 of FIG. 3 is closed, when the cap 3 is retracted backward, the guide protrusion 36 on the inner circumferential surface of the cap is retracted in a straight line along the guide grooves 21 and 19 to fix the cap inner circumferential surface. As the piece 38 passes through the rear fixation ring 20, the incision pieces 34 unfold at the incision 32 so that the pen tip 15 protrudes outwardly (see FIG. 4), followed by a rear fixation ring ( The fixing piece 38 passing through 20 is inserted into the groove formed at the rear of the fixing ring 20, and at the same time, the cutting piece tips 35 are inserted into the fixing groove 24 (see FIG. 5). It becomes a state. In this state, the fixing piece 38 is fixed in the groove and the cutting piece tip 35 is coupled to the fixing groove 34 so that the cap 3 does not rotate or move even when the cap body 30 touches the hand during writing. It does not affect writing.

When sealing with the cap (3) in such a writing state, the cap (3) is advanced in the reverse order as when opened. At this time, the cap inner circumferential surface fixing piece 38 is inserted into the groove between the front and rear fixing rings 22 and 20, and then pushed forward with a little more force, so that the sealing lip 39 of the fixing piece 38 is sealed. While being inserted into the seal, the incision pieces 34 are joined at the incision 32 so that the front of the fixing ring 22 where the pen tip 15 is located is sealed from the outside and the rear of the fixing ring 22.

In the above-described present invention, the guide groove 21 of the fixing ring 20 is the elasticity of the cap body 30 is easily passed through the fixing ring 20 when assembling the cap 3 to the writing instrument body (1) It is intended to be.

According to the present invention, unlike a writing instrument without a conventional cap, it is possible to seal the portion where the pen tip 15 is located by reversing only the cap 3 without reversing the writing shaft body. There is no need for a notch device or a spring device to move back and forth, which simplifies the structure, thereby reducing manufacturing costs and reducing the failure rate.

In particular, according to the present invention, the end of the writing instrument that is in contact with the ink or the hand is not damaged while being in a simple configuration as described above.

Claims (5)

A pen tip insert having a front and rear fixing ring (20) and (22) on its outer circumference and a pen tip insertion hole (16) at its tip and integrally formed with the tip of the fuselage tip (12) described above The writing instrument body 1 composed of the writing instrument body 10 having a central hole 14 connected to the ball 16 and the distal end portion are cut into a plurality of cut pieces 34 by the cut portions 32 and 34) An inner circumferential surface having a fixing piece 38 sealingly coupled to the front fixing ring 20 and composed of a cap 3 coupled to the writing instrument body tip 12 so as to be able to move back and forth, and the front of the cap 3 Writing instruments that are opened and closed in the incision section (34) by the reverse. In claim 1, the guide ring 18 of the fixing ring 20 and the fuselage tip 12 has guide grooves 21 and 19, respectively, and the cap 3 is provided on the inner circumferential surface of the cap body 30. Writing instrument characterized in that it has a guide protrusion 36 of the longitudinal direction is inserted into the guide groove (21), 19 guided. In claim 1, the front fixing ring 22 of the fuselage tip 12 has a sealing groove 23, and the fixing piece 38 formed on the inner circumferential surface of the stopper section 34 of the cap 3 has been described. And a sealing lip (39) inserted into the sealing groove (23) for sealing engagement. In claim 1, the fuselage tip 12 has a fixing groove 24 engaged with the tip 35 of the respective incision piece 34 in the front retaining ring 22, and the incision piece 34 in use of a writing instrument. Writing instrument characterized in that the front end of the 35 is coupled to the fixing groove 24 is fixed. In claim 1, the incision piece 34 consists of three incisions 34a, 34b, 34c cut in three incisions, each of the incisions 34a, 34b described above. Writing instruments, characterized in that the elastic coating is formed on the surface of the cutout (32a), (32b), (32c) side of the (34c).