KR20110060097A

KR20110060097A - Ball pen

Info

Publication number: KR20110060097A
Application number: KR1020090116584A
Authority: KR
Inventors: 박찬원
Original assignee: 주식회사 아미온
Priority date: 2009-11-30
Filing date: 2009-11-30
Publication date: 2011-06-08

Abstract

According to the present invention, the coil portion of the spring portion inserted into the tip body is composed of an inner diameter of the tip and an interference fit so that the spring portion is removed from the inner diameter of the tip body so that the spring portion is assembled to the tip body so that the coil portion does not interfere with the compression phenomenon. It relates to a ballpoint pen that does not come out and prevents the ink of the ballpoint pen from leaking to the outside due to the pressurization of the spring portion as the ball rotates.

The configuration includes a metallic tip body having a leading edge portion and a plurality of inner protrusions; A ball rotatably received and held between the leading edge portion and the inner protrusion portion; A rod part inserted into the tip main body in a press fit shape to press the ball forward, and the spring part presses the ball forward so that the one surface is in close contact with the inner surface of the leading edge part; It is formed integrally with the rod portion and is composed of a spiral coil portion to provide elasticity in accordance with the operation of the ball, the leading edge portion is formed by bending inward from the tip of the tip body, the inner protrusion is formed by the pressure deformation On the other hand it is located on the inner side of the tip body to the rear of the tip edge portion; An ink outflow gap extending radially outward from the center of the tip main body is formed between adjacent inner protruding portions, and the spring portion is inserted into a space formed by the ink outflow gap, and a virtual portion of the center of the ink outflow gap is formed. The diameter of the inscribed circle is set larger than the outer diameter of the rod portion of the spring portion, and the minimum dimension of each ink outflow gap is configured to be smaller than the outer diameter of the rod portion.

Description

Ball pen {Ball Pen}

The present invention relates to a ball pen, having a spring portion inserted into the tip body in the form of an interference fit so as to be integrally formed with the rod portion and the rod portion which are in close contact with the inner surface of the tip edge portion to press the ball of the ball pen forward. It relates to a ball-point pen of the type which is configured in a spiral to provide a coil portion to provide elasticity in accordance with the operation of the ball by the spring portion to the front of the ball in accordance with the rotation operation of the ball.

Generally, as shown in FIGS. 1 and 2, the pen includes a regulator 3 formed with an exchange groove 2 for ink / air exchange in a plurality of flakes 1, and coupled to the ink container 6. It consists of the ink guide core 4 provided through the center part of the regulator 3, and the tip 5 provided in the front-end | tip part of the said regulator 3. As shown in FIG.

Among these pens, a pen as shown in FIG. 1 is configured such that the ink in the ink container 6 is absorbed by the ink guide core 4 and supplied to the tip 5, but the ink container 6 When the internal pressure is increased by the external temperature, impact, etc., there is a problem that the pressure is directly applied to the ink induction core 4 and the ink is excessively supplied to the tip 5, which leads to a cut line. It was not stable, and leaking of ink droplets on the tip 5 occurred.

On the other hand, the pen as shown in Figure 2 is the ink guide core 4 is coupled to the lower portion of the regulator 3, the lower end of the exchange groove 2, the ink / air exchange is the ink guide core 4 ) Has a structure in communication with the inside of the storage tube 8 is installed at a right angle.

That is, the lower end portion of the exchange groove 2 and the receiving tube 8 communicate with each other in a “┗” shape so that the ink of the ink container 6 is supplied to the ink guide core 4 through the exchange groove 2. It is configured to be.

However, the ink container 6 has a pen of this structure because the exchange groove 2 communicating with the ink container 6 is in communication with the storage tube 8 at a right angle with the lower portion thereof closed. When the pressure rises inside, the increased pressure is directly transmitted to the housing tube 8 through the exchange groove 2, so that the ink in the ink container 6 is excessive as described above. To be supplied to the tip (5) there was a problem that the cutting line is not stable.

That is, when the pressure in the ink container 6 is normal, ink is stably supplied to the ink guide core 4, but when the temperature rises and the internal pressure of the ink container 6 rises, the temperature rises. Since the viscosity of the ink is lowered and the surface tension at the "P" portion is also lowered, and the lower portion of the exchange groove 2 is closed, the internal pressure acts as the ink guide core 4, so that the tip 5 As ink is excessively supplied or pressure is applied, irregularities are caused by irregularities, and in severe cases, ink leaks into the air inflow grooves 7.

In order to solve the above problems, as shown in FIGS. 3 to 4, the internal configuration of the ball pen includes a tip main body 11 rotatably holding the ball 12 at its tip, and a rear of the tip main body 11. The holder 16 is press-fitted and secured to the front part, the ink receiving tube 17 is press-fitted and secured to the tip opening of the rear end of the holder 16, the tip body 11 and the holder 16. A spring 15 having a rod portion 14 at the tip and a tail plug press-fitted to the rear end opening of the ink receiving tube 17 is disposed.

The ink receiving tube 17 is a cylindrical body with both ends open, and is obtained by extrusion molding of a synthetic resin. The rear end portion of the holder 16 having the tip body 11 is press-fitted to the front end portion of the ink receiving tube 17, while the ink 18 and the ink ( 18) is disposed at the rear end.

The tip body 11 is made of a metal linear cylindrical microtubule. At the tip end portion of the tip body 11, an annular inward tip edge portion 19 is formed by pressure deformation inward. In addition, the inner protrusions 20 are formed at equal intervals along the circumferential direction on the inner surface of the side wall of the tip body 11 on the rear side of the tip edge portion 19 by the inner side pressure deformation. The ball 12 is rotatably held between the inner surface of the leading edge portion 19 and the front surface of the inner projection 20.

An ink outflow gap 4 is formed from the center of the inner protrusions 22. The rod portion 51 of the spring 5 is inserted into the center side of the ink outflow gap 4, and the tip of the rod portion 51 contacts the rear surface of the ball 3 so that the ball 3 is pressed forward. It is configured.

In the above configuration, the length of the rod portion 51 connected to the ball 12 is long, and the tension of the spring 15 integrally formed with the rod portion 51 is applied from the outside of the tip body 11. There is a problem that the rod portion 14 is located in the straight portion of the tip is bent, and additionally the configuration of the rod portion 14 and the spring 15 connected to the tip body 11 can not be installed variably There is a problem of using restrictions.

The present invention has been made to solve the above problems, the object is that the ball pen is provided with a spring portion for inserting in the form of an interference fit inside the tip body to press the ball of the ball pen forward to the inner surface of the edge portion The coil of the spring which is formed outside the tip main body by the connection of the existing ball by the spring part is configured to be pressed toward the front of the ball according to the rotational motion of the ball through the coil part formed integrally with the rod part which is in close contact with the rod part. This pressurization is to provide a ballpoint pen that can prevent the rod portion located in a straight portion of the tip by the operation of the spring to bend in accordance with the pressure strength.

According to a feature of the present invention for achieving the above object, a metallic tip body having a leading edge portion and a plurality of inner protrusions; A ball rotatably received between the tip edge portion and the inner protrusion portion; A rod part inserted into the tip main body in a press fit shape to press the ball forward, and the spring part presses the ball forward so that the one surface is in close contact with the inner surface of the leading edge part; It is formed integrally with the rod portion and is composed of a spiral coil portion to provide elasticity in accordance with the operation of the ball, the leading edge portion is formed by bending inward from the tip of the tip body, the inner protrusion is formed by the pressure deformation On the other hand it is located on the inner side of the tip body to the rear of the tip edge portion; An ink outflow gap extending radially outward from the center of the tip main body is formed between adjacent inner protruding portions, and the spring portion is inserted into a space formed by the ink outflow gap, and a virtual portion of the center of the ink outflow gap is formed. The diameter of the inscribed circle is set larger than the outer diameter of the rod portion of the spring portion, and the minimum dimension of each ink outflow gap provides a ball pen configured to be smaller than the outer diameter of the rod portion.

At this time, according to an additional feature of the present invention, the upper surface of the rod portion of the spring portion is formed in contact with the ball at the tip of the tip main body is bent inward to the pressing operation of the coil unit in accordance with the rotation operation of the ball Therefore, it is preferable that the ink is discharged through the ink outflow gap.

In addition, according to an additional feature of the present invention, the coil portion of the spring portion to be inserted into the tip body is the outer diameter (B) portion of the coil portion is composed of the inner diameter of the tip and the interference fit so as not to interfere with the compression phenomenon, the spring portion tip After being assembled to the body, it is preferable that the spring portion is configured so as not to escape from the inner diameter of the tip body.

In addition, according to an additional feature of the present invention, the rod portion of the spring portion is composed of a length of 0.2 to 1.5 mm, it is preferable to be configured to contact the ball at the tip of the tip body on the upper surface of the rod portion.

The ball pen according to the present invention has a spring portion inserted into the tip body in the form of an interference fit, and is formed integrally with the rod portion and the rod portion which is in close contact with the inner surface of the tip edge portion to press the ball of the ball pen forward. The spring part is configured to be pressed toward the front of the ball according to the rotation of the ball through the configured coil part, and the coil of the spring configured outside the tip main body is pressed by the existing ball connection, and the spring part is positioned on the straight part of the tip by the operation of the spring. The rod part is bent according to the pressure strength and can solve the problem that the appropriate force is not applied to the ball.

In addition, the coil portion of the spring portion inserted into the tip body is composed of an inner diameter of the tip and an interference fit so that the spring portion is assembled from the tip body so that the spring portion is pulled out from the inner diameter of the tip body so as not to interfere with the compression phenomenon. Since it does not come out, it is possible to prevent the ink of the ball pen from leaking out due to the pressurization of the spring part as the ball rotates.

In addition, when the length of the rod portion of the spring portion is configured to be short, the ball is pressed forward by the spring portion inserted into the tip of the tip body when writing using a ballpoint pen. It is possible to apply sufficient pressure to the ball without buckling at the part, and the rod part and the coil part can be applied variably according to the use of the ball pen, thereby selectively producing the ball pen.

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

5 is a cross-sectional view showing the configuration of a ballpoint pen according to the present invention, Figure 6 is a cross-sectional view showing the configuration of the spring portion of Figure 5, Figure 7 is a longitudinal sectional view of the main part of Figure 5, Figure 8 is in accordance with the present invention The cross section which shows the fastening state of a tip main body is shown.

The configuration and operation of the ballpoint pen according to the present invention with reference to the above configuration in detail as follows.

First, referring to the configuration of the ballpoint pen of the present invention with reference to FIGS.

The ball pen 1 of the present embodiment includes a tip body 2 rotatably holding the ball 3 at its distal end, a holder 6 in which the rear portion of the tip body 2 is press-fitted to the front part, and An ink receiving tube 7 in which the rear portion of the holder 6 is press-fitted to the tip opening portion, accommodated and disposed inside the tip body 2 and inside the holder 6, and has a rod portion 51 at the tip. A spring 5 and a tail plug 8 press-fitted to the rear end opening of the ink receiving tube 7 are provided.

Large ball pen 100 of the present invention is composed of a ball 120, a tip body 120, a spring portion 130 and the ink receiving tube (140).

That is, a metallic tip body 110 having a front edge portion 150 and a plurality of inner protrusions and a ball 120 rotatably received between the front edge portion 150 and the inner protrusions are located, and The spring 130 is inserted into the tip body 110 in an interference fit form and is configured to press the ball 120 forward in accordance with the rotation of the ball 120.

On the other hand, the spring 130 may be divided into a rod portion 131 and a coil unit 133 integrally formed. That is, the rod part 131 presses the ball 120 forward so that the protrusion of the rod part 131 is in close contact with the inner surface of the tip edge part 150, and the coil part 133 Is made of a material such as iron or stainless steel is formed integrally with the rod portion is configured in a spiral to provide elasticity according to the operation of the ball 120 to press the ball 120 through the rod portion 131 do.

The upper surface of the rod portion 131 of the spring 130 is in contact with the ball 120 at the tip of the tip body 110, the coil portion 133 in accordance with the rotation of the ball 120 According to the pressing operation of the ink is configured to flow out through the ink outflow gap 160.

At this time, the rod portion 131 is preferably composed of a length of 0.2 to 1.5 mm.

In addition, the tip edge portion 150 is formed by bending inward from the tip of the tip body 110, the inner projection is formed by the pressure deformation, the tip edge portion 150 is located on the inner side of the tip body 110 ) To the rear. In addition, the ink outflow gap 160 extending radially outward from the center of the tip body 110 is formed between the adjacent inner projections, the spring portion 130 is formed by the ink outflow gap Is inserted into the space, the diameter of the virtual inscribed circle in the center of the ink outflow gap 160 is set larger than the outer diameter of the rod portion 133 of the spring portion 130, the minimum dimension of each ink outflow gap 160 is loaded It is comprised smaller than the outer diameter of the part 133.

As shown in the configuration of FIG. 5, the coil portion 133 of the spring portion 130 inserted into the tip body 120 may have an outer diameter B portion of the coil portion 133 so as not to interfere with compression. The inner diameter of the tip and the interference fit is configured so that the spring portion 130 does not escape from the inner diameter of the tip body 110 after the spring portion 130 is assembled to the tip body 110.

Looking at the detailed configuration of the coil unit of the spring unit 130 in the configuration shown in Figure 6, the coil unit 130 is composed of a front (front), a drive (Active), a rear (Tail) coil, the spring The coil part 133 of the part 130 is integrally formed with the rod part 131 and the front coil C is wound three times, and the driving coil which is integrally formed with the front coil and maintains the connection relationship is wound 32 times. The rear (C, D) coil is configured to be wound 8 to 9 times while maintaining a connection relationship with the front coil and including an inner diameter and an interference fit of the tip body 110.

That is, the coil winding degree of the coil portion of the spring 130 may be applied in accordance with those skilled in the art, the tip portion 110 and the coil portion of the end consisting of the interference fit the diameter of the front (Front) coil It is preferable that this structure is large.

At this time, looking at the specifications of each of the coil portion 133 and the rod portion 131, first, the diameter (B) of the coil portion 133 is inserted into the inner diameter when the wire diameter of the inner diameter of the tip body 110 is ㅨ 0.10 ㅨ 0.48, the diameter (B) of the coil portion 133 fastened to the rear portion of the tip body 110 by interference fit ㅨ 0.55, the front coil (C) 0.3mm, the rear coil (D) of 0.2mm The diameter B of the coil part 133 inserted into the inner diameter and the inserted diameter when the wire diameter is 0.09 is 0.40, and the diameter B of the coil part 133 fastened to the rear part of the tip body 110 by interference fit. ) Is 0.45, the front coil (C) is 0.27mm, the rear coil (D) has a specification of 0.18mm.

Additionally, when the wire diameter of the inner diameter of the tip main body 110 is 0.08, the diameter B of the coil part 133 inserted into the inner diameter is 0.40, and is fastened to the rear part of the tip main body 110 by interference fit. The diameter B of the coil part 133 has a diameter of 0.45, the front coil C is 0.24 mm, and the rear coil D is 0.16 mm.

As shown in FIG. 7, the tip body 110 is made of metal or stainless steel to form a straight cylindrical microtubule. As shown above, the tip portion 110 of the tip body 110 is formed with an annular inward tip edge portion 150 by the pressure deformation inward. In addition, the ball 120 is rotatably held between the inner surface of the front edge portion 150 and the front surface of the inner protrusion 153 (that is, the ball holding portion).

An ink outflow gap 160 extending radially outward from the center in three or more directions from the center is formed between the inner protrusions 153. At the center of the ink outflow gap 160, a spring portion 130 having a rod portion 131 and a coil portion 133 integrally inserted therein is inserted into the tip body 110, and the rod of the spring portion 130 is inserted into the tip portion 110. When the tip of the portion 131 contacts the rear surface of the ball 120, the ball 120 is pressed forward.

In addition, the top portion of the inner surface of the inner protrusion 153 has a smooth curved surface. Specifically, the radius of curvature of the top of the inner protrusion 153 is set to a value larger than the radius of the ball 120. As a result, when the rod portion 131 of the spring portion 130 is inserted into the ink drainage gap 160 from the rear side, the tip of the rod portion 131 is not attracted to the rear surface of the inner protrusion portion 153 so that the inner protrusion portion ( 153 may be smoothly guided toward the center of the ink outflow gap 160.

When the ball pen 100 of the present embodiment is writing, the ball 120 is pushed forward by the spring 110 inserted into the tip body 110 by a force fitting, and according to the operation of the ball 120. The spring part 110 may apply sufficient pressure to the ball without buckling when the rod part 131 is spring-compressed, and the spring part is driven according to the operation of the ball so that the ink outflow interval 160 is provided through the rod part 131. Through the ink 141 accommodated in the ink receiving portion 140 is leaked to operate the pen.

The invention being thus described, it will be obvious that the same way may be varied in many ways. Such modifications are intended to be within the spirit and scope of the invention as defined by the appended claims.

1 is a partially enlarged cross-sectional view showing a conventional pen

2 is a partially enlarged cross-sectional view of a pen according to an embodiment of the conventional pen of FIG.

Figure 3 is an embodiment of a conventional tip body and the rod portion separated pen

4 is an enlarged cross-sectional view of a part of the tip body and the rod part of FIG. 3 separated from each other;

5 is a cross-sectional view showing the configuration of a ballpoint pen according to the present invention.

6 is a cross-sectional view showing the configuration of the spring portion of FIG.

7 is a longitudinal cross-sectional view of the main part of FIG.

Figure 8 is a cross-sectional view showing a fastening state of the tip body according to the invention

100: ball pen

110: tip body 120: ball

130: spring portion

131: rod portion 132: coil portion

140: ink container 141: ink

150: leading edge portion 153: inner projection

160: ink outflow gap

A: Wire diameter of spring part

B: outer diameter of coil part

C: Wire diameter of front coil of coil part

D: Wire diameter of rear coil in coil part

Claims

A metallic tip body having a leading edge portion and a plurality of inner protrusions;

A ball rotatably received and held between the leading edge portion and the inner protrusion portion;

It is inserted into the tip body in the form of interference fit having a spring for pressing the ball forward,

The spring part is composed of a rod part which presses the ball forward and the one surface is in close contact with the inner surface of the tip edge part and the coil part which is formed integrally with the rod part and is helically to provide elasticity according to the operation of the ball. ,

The tip edge portion is formed by bending inward from the tip of the tip body, the inner protrusion is formed by the pressure deformation while located on the inner side of the tip body and located behind the tip edge portion;

An ink outflow gap that extends radially outward from the center of the tip body is formed between adjacent inner protrusions,

The spring portion is inserted into the space formed by the ink outflow gap,

The diameter of the virtual inscribed circle at the center of the ink outflow gap is set larger than the outer diameter of the rod portion of the spring portion, the minimum dimension of each ink outflow gap is smaller than the outer diameter of the rod portion.

The method of claim 1,

The upper surface of the rod portion of the spring portion is in contact with the ball at the tip of the tip body and the ball pen, characterized in that configured to allow the ink to flow out through the ink outflow gap in accordance with the pressing operation of the coil unit in accordance with the rotation operation of the ball .

The method of claim 1,

The coil portion of the spring portion to be inserted into the tip body is composed of an outer diameter (B) of the coil portion and the interference fit of the tip so that the spring portion is assembled to the tip body so that the spring portion of the tip body Ball pen, characterized in that configured not to escape from the inner diameter.

The method of claim 2,

The rod portion of the spring portion is composed of a length of 0.2 to 1.5 mm, the ball pen, characterized in that configured to contact the ball at the tip of the tip body on the upper surface of the rod portion.