KR20040049440A - Writing tools of pen-tip nock type - Google Patents

Abstract

PURPOSE: A nib knock ball point pen with an improved structure is provided to allow a user to more easily jut out the nib simply by pressing the ball point pen once on the paper and releasing. CONSTITUTION: The nib knock ball point pen includes a grip(10), a nib projection part(20) with a hole for projecting the nib therethrough, and a cylindrical cover(30) on the upper portion of the nib projection part(20). The cylindrical cover(30) covers a knock(40) and a gear(50), and a hooking jaw and a hooking groove are carved along the inner side. A nib(60) is located inside the knock(40) and the gear(50). A nib spring(70) makes the nib(60) touch the top of the gear(50). A fixed spring(90) is fixed to the top end of the nib(60), and a fixing part(80) encompasses the lower part of the fixed spring(90).

Description

Writing tool of pen-tip nock type

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a writing instrument, and more particularly, to a pen knock knock writing instrument which presses a pen nib to the ground or the like.

In general, the writing instrument is composed of a nib and a spring, a nib case, operation buttons and upper and lower cases.

In order to use a writing instrument having such an operation button, pressing the operation button protrudes the pen nib, and when not using the writing instrument, presses the operation button again to immerse the pen nib and carry it.

These buttons are usually operated by knocks and gears.

When the user presses the operation button while the knock and the gear engaged with each other are seated in the locking groove inside the upper case, the knock and the gear are detached from the locking groove to move forward while the operation button is pressed. And, if the operation button is not applied to the knock and the gear is rotated, the projection of the gear is caught on the locking jaw of the upper case. By this operation, the pen nib is pushed downward by the force applied to the knock and protrudes out of the lower case.

In the opposite case of the completion of the use, the user pushes the operation button with force, the knock and the gear are detached from the locking jaw, and move forward while the operation button is pressed. If no force is applied to the operation button, the knock and the gear are rotated to be seated in the locking groove of the upper case. By this operation, the elastic portion loses the elastic force, so the pen nib is immersed into the lower case.

Knocked writing instruments of the principle briefly discussed above are most widely used.

In the case of such a knock-type writing instrument, there is a product that can be used in the grip state by placing the operation button on the side rather than the upper side.

In addition to operating the operation button, the writing instrument including a lid is used when the lid is opened for use and the lid is closed after use.

As such, various methods of writing instruments are commercially available, and have been used to let the pen nibs appear in various ways.

However, it was not possible to protrude the pen nib directly in the state of holding the writing instrument, and it required a separate operation such as pressing the operation button or opening the lid by changing the holding state.

Accordingly, an object of the present invention is to provide a pen-knock writing instrument that can be used immediately in the gripped state because the pen nib protrudes by pressing and releasing the surface once in a state of holding the writing instrument to solve the above-mentioned problems.

1 is an exploded perspective view of a knock-type writing instrument according to an embodiment of the present invention,

Figure 2 is a partial cross-sectional view showing a coupling state of the device of Figure 1,

3 is an external view of the combined state of the device of FIG.

Figure 4 is a partial cross-sectional view showing a state pressed on the ground for pen core protrusion,

5 is an external view in the state of FIG.

6 is a partial cross-sectional view showing a state where the pen nib protrudes,

Fig. 7 is an external view of the Fig. 6 state.

* Explanation of symbols for main parts of the drawings

10: grip 20: pen core recess

30: cylindrical cover 40: knock

50: gear 60: nib

70: pen shim spring 80: fastening portion

90: fixed spring

Pen-knock writing implements according to the present invention for achieving the above object is a pen nib, a pen shim spring fixed to the center portion of the nib, and a gear slidably fitted to the nib 60 to abut the lower end of the nib spring; A pen core recess having a knock inserted to engage with the gear, a cylindrical cover portion surrounding the knock and the gear, and having a pen core projecting portion fastened to the bottom, and a hole for the appearance of the pen nib and fastened to the lower portion of the cylindrical cover portion; The upper portion of the nib is characterized in that it comprises a fixing spring for fixing the nib.

In addition, in the present invention, the cylindrical cover portion is characterized in that it further comprises a rubber grip.

In addition, in the present invention, the gear is characterized in that it comprises a plurality of protrusions.

In addition, in the present invention, the cylindrical cover portion is characterized in that the engaging jaw and the engaging groove to be caught on the plurality of protrusions of the gear is stamped along the inner surface.

Hereinafter, with reference to the accompanying Figures 1 to 7 will be described in detail a preferred embodiment of the present invention.

1 is an exploded perspective view of a knock-type writing instrument according to an embodiment of the present invention.

In FIG. 1, a grip 10 surrounding the outermost side of the writing instrument for holding the user's hand, a pen core extruded portion 20 having a hole for penetrating the pen tip, and a cylindrical portion on the upper portion of the pen core extruded portion 20. The cylindrical cover part 30 is provided, and the cylindrical cover part 30 covers the knock 40 and the gear 50, and the locking jaw and the locking groove which are caught by the protrusion of the gear are stamped along the inner surface. . In addition, the pen nib 60 is positioned inside the knock 40 and the gear 50. In addition, the pen core 60 has a pen core spring 70 positioned to abut on the upper end of the gear 50. A fixing spring 90 is fastened to the uppermost portion of the pen nib 60, and a lower portion of the fixing nib 90 surrounds the pen nib 60 and includes a fastening portion 80 for fastening with the upper lid.

That is, the gear 50 is slidably fitted in the center portion of the pen nib 60 so as to be fixed to the upper end of the pen shim spring 70, and in contact with the lower end of the pen shim spring 70. Knock 40 is fitted to engage 50. In addition, the cylindrical cover part 30 surrounds the knock 40 and the gear 50, and the pen core ejection part 20 is fastened below the cylindrical cover part 30. Then, the grip 10 is fitted to the handle portion on the outside of the cylindrical cover portion (30). On the other hand, the upper portion of the nib (70) fitted to the nib 60, the fastening portion 80 is inserted to surround the nib (60), the fixing spring 90 is the upper lid of the upper portion of the fastening portion 80 It is fixed inside of. That is, since the fastening part 80 is fastened to the inner surface of the upper lid, the fixing spring 90 is fixed.

The pen knock writing instrument thus constructed will be described in more detail with reference to FIGS. 2 to 7.

Figure 2 is a partial cross-sectional view showing the coupling state of the device of Figure 1;

2 is provided with a knock and a gear used in a general knock-type writing instruments on the nib (60) side by pressing the nib 60 so that the nib 60 is released. In addition, the device of Figure 2 is provided with a pen core spring 70 to exert an elastic force for the vertical movement and support of the knock 40 and the gear 50 for the appearance of the pen core 60.

The pen core recess 20 is coupled to the bottom of the pen core 60, maintains a predetermined distance d1 on the upper portion of the pen core recess 20, and the cylindrical cover 30 surrounds the pen nib 60.

Here, the predetermined interval d1 is an interval at which the pen core projection 20 moves when the pen core 60 protrudes.

3 is an external view of a coupled state of the device of FIG.

As shown in FIG. 3, the pen core 60 is not visible from the outside because it is inside the pen core recess 20, and the pen core recess 20 has a cylindrical outer surface. From the side, it can be seen that there is a curved portion (a) and a straight portion (b). The lower portion of the curved portion (a) has a hole for pen core ejection.

And the grip 10 and the cylindrical cover portion 30 for holding the user's hand is exposed to the outside.

In this state, the user grips the writing instrument and presses it against the ground.

Figure 4 is a partial cross-sectional view showing a state pressed on the ground for pen core protrusion.

As shown in FIG. 4, when the pen lead-out part 20 and the pen core 60 are pressed by an external force, the knock and the gear are detached from the locking groove (not shown) of the cylindrical cover part 30 to pen nib 60. Advance in this pressing direction. Therefore, the distance d1 between the pen core projection 20 and the cylindrical cover portion 30 shown in FIG. 2 is narrowed by a distance d2.

At this time, the pen core spring 70 and the fixed spring 90 exhibits an elastic force, and has elasticity as much as the amount of movement of the pen core 60 and the pen core projection part 20.

The external view at this time is as shown in FIG.

As shown in Fig. 5, since it is maximally pressed by the ground, only the curved portion a is seen in the pen core recess 20 which is seen from the outside, and the straight portion b is pushed inward.

In such a state, if the writing instrument is lifted from the ground without applying a force to press the nib 60, the pen nib 60 protrudes outward as shown in FIG.

6 is a partial cross-sectional view showing a state where the pen nib protrudes.

In FIG. 6, while the knock 40 and the gear 50 rotate, the protrusion of the gear 50 is caught by the locking jaw (not shown) of the cylindrical cover part 30. By this operation, the pen core 60 is pushed downward due to the elastic force of the fixed spring 90 to protrude to the outside of the pen core projection 20.

At this time, the interval d2 between the pen core projection 20 and the cylindrical cover portion 30 shown in FIG. 4 maintains a constant interval as much as d3.

The external view at this time is shown in FIG.

Referring to FIG. 7, the pen core 60 protrudes out of the pen core recess 20, and the pen core recess 20 also moves downward so that the straight portion b is slightly visible to the outside. .

When used in this way, once again pressing the pen nib 60 to the ground to perform the opposite operation to the state of FIG. 2 where the pen nib 60 is immersed into the pen core projection 20.

Accordingly, the device of the present invention provides a convenience of use by allowing the pen nib to protrude in a gripped state by pressing and releasing once on the ground in a state of holding a writing instrument, thereby providing convenience of use, and thus providing the purchasing power of users. Can be promoted.

Claims (4)

In the knock type writing implements, Pen nib 60; A pen shim spring 70 fixed to a center portion of the nib 60; A gear 50 slidably fitted to the pen core 60 so as to be in contact with the lower end of the pen core spring 70; A knock 40 fitted to engage the gear 50; Cylindrical cover portion 30 surrounding the knock 40 and the gear 50 and the pen core projection 20 is fastened to the bottom; A pen core projection 20 having a hole for the appearance of the pen core 60 and fastened to the lower portion of the cylindrical cover portion 30; Pen tip knock writing instruments, characterized in that the upper portion of the nib (60) comprises a fixing spring (90) for fixing the nib (60). The method of claim 1, The cylindrical cover portion 30 is a pen-type knock writing instruments, characterized in that it further comprises a rubber grip (10) on the outside. The method of claim 1, The gear 50 is a pen knock writing implement, characterized in that it comprises a plurality of projections. The method of claim 3, wherein The cylindrical cover portion 30 is a pen-knock writing implements, characterized in that the locking jaw and the locking groove which is caught to the plurality of protrusions of the gear 50 is stamped along the inner surface.