KR200384547Y1 - front-knock Type Ballpen - Google Patents

Abstract

The present invention relates to a front knock-type ballpoint pen, and more particularly, a front-knock-type ballpoint pen that can be provided to a user by pushing a pen nib in a writing posture to draw or retract a ballpoint pen used in learning or work. It is about.

The present invention for realizing this, the hollow front cap which is formed in the ball-point pen penetrating portion is formed at one end; A return spring that is seated on the rear end of the front cap and always protrudes toward the front of the ball pen tip exit portion of the front cap; A mobile cam seated at the rear end of the return spring and moved due to the introduction or withdrawal of the nib, and having a gear part formed at the rear thereof; A knock cam inserted into the inner circumferential surface of the mobile cam and having one side engaged with the gear part, and the other side having a rocker that is knocked on a knocking projection formed on the inner circumferential surface of the ball pen barrel; Characterized in that consisting of a knock spring installed in the rear of the ball pen nib.

Description

Front Knock Type Ballpen

The present invention relates to a front knock-type ballpoint pen, and more particularly, to a front knock-type ballpoint pen which draws or draws a pen nib by pushing a pen nib in a writing posture.

Conventional knock-type ballpoint pen is adapted to press / draw the pen nib by pressing the pressure member protruding from the rear of the ballpoint pen barrel. That is, the inside of the ball-point pen barrel is provided with a knock portion is pressed to apply pressure to the pressing member is the knock portion is knocked or knocked off so that the pen nib is drawn out or drawn in.

Therefore, when the ball pen is to be used, it is necessary to pull out the nib by pressing the pressure member protruding rearward, and press the urging member again to retract the nib after use. For this purpose, it is inconvenient to change the grip state of the ball pen. In addition, when the pen nib is inserted into a pocket or a bag in a state where the pen nib is drawn out after use, the ink may be stained with clothes or other books, thereby causing damage.

On the other hand, Korean Utility Model Publication No. 1981-1229 (name: ball pen penetrating device) describes a technology that the pen nib is pulled in / out by pressing the pen core.

The pen core penetrating device of the ball pen is provided with a ball pen barrel having one side closed and a knocking protrusion formed on an inner circumferential surface thereof, and a pen nib coupled with a return spring on one side of the pen pen, and the ball pen tip of the pen nib drawn in / out. The knock cam and the moving cap are coupled to the pen nib, and a return spring is installed between the knock cam and the moving cap to protrude the moving cap forward, and the front cap does not detach to the outside. This is done in combination.

However, since the return spring is installed between the moving cap and the knock cam, the knock cam of the ballpoint pen is moved by the knock cam, and the knock cam is rotated due to the elasticity of the return spring. There was a problem that it was not knocked or knocked off smoothly.

In addition, Korean Utility Model Application No. 2004-10590 (name: front knock-type ballpoint pen) filed by the applicant of the present application discloses a technology that allows the insertion and withdrawal of a ballpoint pen tip more quickly and conveniently by pressing the pen core in a writing position. have.

Referring to Figure 1, the front-knock-type ball-point pen has a ball pen barrel (1) is formed with a knocking projection 10 on the inner surface of the hollow ball barrel shape, the front cap 20 and both ends of the ball-pen barrel The rear cap 80 is coupled, and the movable cap 30 is provided with a ball pen tip exit portion 33, the coupling portion 37 and the engaging groove 38 on one side to be inserted into the rear of the front cap 20. And, the return spring 40 is coupled between the coupling portion 37, the moving cam 50 having a locking projection 58 is inserted into the inner circumferential surface behind the moving cap 30 is inserted, the moving cap 30 And a knock cam 60 having a rocker 61 and a coupling groove 67 formed thereon to be knocked on the knocking projection 10 by the movement of the moving cam 50. The protrusions 73a are spaced apart from each other at regular intervals. A pen core 70 having a 73b is inserted into the center of the knock cam 60 to latch the protrusion 73a, and the protrusion 73b on the other side is knocked by the knock spring 90 coupled thereto. To exert elasticity.

   However, the front knock-type ballpoint pen has a problem in that the number of parts is complicated and the manufacturing cost is increased.

Therefore, the present invention has been devised to improve the above problems, by pressing the pen core portion of the ballpoint pen to be easily withdrawn / retracted, to reduce the number of parts and to simplify the structure to reduce the cost during production, The purpose of the present invention is to provide a front-knock ballpoint pen that can be easily used by a user by lightly weighing a ballpoint pen.

Front knock-type ball-point pen of the present invention for achieving the above object, a mobile cam and a knock cam is installed inside the hollow ball-point pen barrel, the front cap and the rear cap are coupled to both ends of the ball pen barrel, the mobile cam In the knock-type ball-point pen in which the locker of the knock cam is repeatedly engaged and disengaged by the knocking projection of the inner circumferential surface of the ball pen barrel, and the ball pen core is reciprocated in the longitudinal direction of the ball pen barrel, and the ball pen tip is repeatedly moved in and out.

A hollow front cap is formed in the ball pen tip exit portion at one end; A return spring that is seated on the rear end of the front cap and always protrudes toward the front of the ball pen tip exit portion of the front cap; A mobile cam seated at the rear end of the return spring and moved due to the introduction or withdrawal of the nib, and having a gear part formed at the rear thereof; A knock cam inserted into the inner circumferential surface of the mobile cam and having one side engaged with the gear part, and the other side having a rocker that is knocked on a knocking projection formed on the inner circumferential surface of the ball pen; Characterized in that consisting of a knock spring installed in the rear of the ball pen nib.

In addition, the ball point pen is characterized in that the protrusions are applied to the rear end and the knock spring of the knock cam, respectively.

Hereinafter will be described in detail on the basis of the configuration and operation according to a preferred embodiment of the front knock-type ballpoint pen according to the present invention.

Figure 2 is an exploded perspective view of the front knock-type ballpoint pen according to an embodiment of the present invention.

In the front knock-type ballpoint pen according to an embodiment of the present invention, the knocking projection 10 is formed at one side of the inner circumferential surface of the hollow ball-point pen barrel 1, and the inclined surface 11 is formed at the end of the knocking projection 10. In addition, a plurality of guide grooves 12 are formed at a predetermined interval, and a portion of the guide groove 12 is a knock release groove 14 is deeply grooved is formed, one side of the ball-point pen (1) It is formed to be inclined and the front cap 20 is inserted into the inner circumferential surface of the ball pen barrel (1).

In addition, the knock operation of the knocking projection 10 and the mobile cam 40 and the knock cam 50 is known in the general ballpoint pen.

One side of the front cap 20 is formed with a ball pen tip exit portion 23 so that the ball pen tip is introduced or withdrawn, and inserted into the inner circumferential surface of the ball pen barrel 1 with the ball pen tip exit portion 23 facing forward The rear end of the front cap 20 is formed on the inclined side of the ball pen barrel 1 so that it is no longer separated from the outside, and the return spring 30 is seated on the rear end of the front cap.

In addition, the front cap 20 serves to protect the nib 60 from the outside as well as to conceal the ball pen tip 63 so that ink does not adhere to the outside during non-use.

The return spring 30 is interposed between the front cap 20 and the moving cam 40 to give a predetermined elasticity to the rear end of the front cap 20 to protrude forward.

The front end of the mobile cam 40 is the rear end of the return spring 30 is seated, the other side is formed with a gear 44, a plurality of guide projections 41 at regular intervals on the outer peripheral surface of the gear 44. ) Is formed to move along the guide groove 12 formed in the ball pen barrel (1) due to the pressing of the pen nib (60), and the inside of the moving cam 40 is penetrated through the The knock cam 50 is inserted rearward.

The inside of the knock cam 50 is penetrated, and a plurality of rockers 54 protrude from one side of the outer circumferential surface so as to be engaged with or detached from the gear unit 44 formed on the mobile cam 40, and the rocker 54. Is caught or released on the inclined surface 11 of the knocking projection 10 formed in the ball pen barrel 1 by the reciprocating motion of the mobile cam 40, the pen core as the inner peripheral surface of the knock cam 50 60 is inserted.

The ball pen tip 61 is coupled to one side of the pen nib 60, and a protrusion 66a is formed on the outer circumferential surface of the pen nib 60 so that the knock cam 50 is locked and rotated without being detached, and the other side also protrudes. The 66b is formed and the knock spring 70 is locked.

One end of the knock spring (70) is the front end is caught in the projection (66b) formed in the nib 60, the other side is caught on the inner circumferential surface of the rear cap 80 to maintain elasticity to the nib (60), The knock spring 70 is preferably used that is stronger than the elasticity of the return spring (30).

In addition, the knock spring 70 is caught by the projection 66b formed at the rear of the pen nib 60, and then presses the pen nib 60 to pull the ball pen tip 63 into the ball pen tip projection 23. The cap 20 is moved to the rear and the return spring 30 transmits the elasticity to one side of the mobile cam 40, and the mobile cam 40 is the knock cam 50 that has been knocked on the knocking projection 10. By moving the rocker (54) of the rocker 54 is rotated at an angle by the inclined surface 11 is to give elasticity to move quickly to the knock release groove (14).

In addition, the knock spring 70 maintains a constant elasticity to the nib 60 to have a cushion on the nib 60 when the ballpoint pen is used, so that the knock spring 70 can be used stably even in a shaking car.

The rear cap 80 is formed in a cylindrical shape with the rear blocked, the rear end of the knock spring 70 is inserted into the inner peripheral surface is seated, the rear cap 80 is coupled to the inner peripheral surface of the rear end of the ballpoint pen (1). .

In addition, the rear cap 80 may be coupled to the inner circumferential surface of the ball-point pen container 1 to form a locking part so as not to be detached well, or to form a screw so as not to be detached by various methods.

Next, the operation of the front knock-type ballpoint pen according to the embodiment will be described in detail with reference to the accompanying drawings.

(A), (b) and (c) of FIG. 3 are cross-sectional views of main parts for explaining a process of drawing out or drawing out a ballpoint pen tip.

3 (a) shows a state in which the ballpoint pen tip 63 is stored inside the front cap 20, and protrudes forward with elasticity of the return spring 30 installed at the rear of the front cap 20. The other side of the return spring 30 is seated at the front of the mobile cam 40 to maintain its elasticity, and the mobile cam 40 guides the knocking projection 10 formed on the inner circumferential surface of the ball pen barrel 1. The knock cam 50 inserted into the groove 12 and inserted into the inner circumferential surface of the mobile cam 40 is a rocker 54 of the knock cam 50 on an inclined surface 11 formed on the knock catching protrusion 10. ) Is engaged, and one side projection 66a of the pen nib 60 is seated at the rear end of the knock cam 50 so that the ballpoint pen tip 63 does not protrude outward, and the projection 66b is formed on the other side thereof. Is formed is inserted one side of the knock spring 70, the other side is seated on the inner peripheral surface of the rear cap 80 to apply elasticity to the pen nib (60).

Figure 3 (b) is a process for withdrawing the ballpoint pen tip 63 for use, pressing the ballpoint pen tip 63 and the front cap 20, the return spring 30 installed in the rear of the front cap 20 Since the elastic cam is applied to one side of the mobile cam 40, the mobile cam 40 moves the knock cam 50, and the pen core 60 is also moved, so that the knock spring 70 has much elasticity. do.

In addition, as the locker 54 is moved, the moment when the locking is engaged on the inclined surface 11 is rotated by a predetermined angle and is inserted into the knock release groove 14 formed in the knocking projection 10, wherein the rocker 54 is moved. It meshes with the gear 44 formed in the cam 40.

3 (c) is a state in which the ball-point pen tip 63 is drawn out by the ball-point pen tip recessed part 23 of the front cap 20, and the knock spring 70, which has a lot of elasticity, protrudes from the nib 60 ( Giving elasticity to the 66a and 66b, the rocker 54 is moved to the knock release groove 14, so that the moving cam 40 engaged with the rocker 54 is moved, and the ballpoint pen tip 63 penetrates the ball pen tip. It is drawn out to (23) and used.

When the user finishes the use and draws in the pen nib 60 (see FIG. 3 (b)), when the front cap 20 and the ball pen tip 63 are pressed, the elasticity of the return spring 30 is moved by the cam ( Since the rocker 54 is pushed and moved 40 and the knock cam 50, the rocker 54 is rotated at an angle by the inclined surface 11 so that the pen core 60 is drawn in.

The front knock-type ballpoint pen is applicable to various ballpoint pens, and can be modified in various forms, and the exemplary embodiments have been described by way of example, and are not intended to limit the scope of the present invention.

It is apparent that any one of ordinary skill in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

As described above, the front knock-type ball-point pen according to the present invention, if the user presses the nib in the writing posture to withdraw or withdraw the nib, the pen nib is drawn out or retracted to be used without the need to change the holding state of the hand, Since the pen nib always maintains a constant elasticity, it can not only write smoothly by buffering action in a shaking car, but also has a very useful advantage of reducing manufacturing costs.

1 is an exploded perspective view of a conventional front knock-type ballpoint pen,

Figure 2 is an exploded perspective view of the front knock-type ballpoint pen according to an embodiment of the present invention,

Figure 3 (a), (b), (c) is an operating state according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: ball pen case 10: knocking projection

11: slope 12: guide groove

14: knock release groove 20: front cap

23: ball pen tip projection 30: return spring

40: moving cam 41: guide projection

44: gear 50: knock cam

54: rocker 60: nib

63: ballpoint pen tip 66a, 66b: protrusion

70: knock spring 80: rear cap

Claims (2)

A mobile cam and a knock cam are installed inside the hollow ball-point pen barrel, and a front cap and a rear cap are respectively coupled to both ends of the ball pen barrel, and the locker of the knock cam is caught by the knocking projection on the inner circumferential surface of the ball pen barrel whenever the mobile cam is pressurized. And in the knock-type ball-point pen is made to repeat the separation operation, the ball-point pen core is reciprocated in the longitudinal direction of the ball-point pen barrel to repeat the entry and exit of the ballpoint pen tip, A hollow front cap is formed in the ball pen tip exit portion at one end; A return spring that is seated on the rear end of the front cap and always protrudes toward the front of the ball pen tip exit portion of the front cap; A mobile cam seated at the rear end of the return spring and moved due to the introduction or withdrawal of the nib, and having a gear part formed at the rear thereof; A knock cam inserted into the inner circumferential surface of the mobile cam and having one side engaged with the gear part, and the other side having a rocker that is knocked on a knocking projection formed on the inner circumferential surface of the ball pen barrel; The front knock-type ballpoint pen, characterized in that consisting of a knock spring is installed on the rear of the ball point pen. The front knock ballpoint pen according to claim 1, wherein the ballpoint pen core is provided with protrusions at which the rear end of the knock cam and the knock spring are respectively applied.