KR102545490B1 - Multi-color writing instrument having an automatic return function - Google Patents

Abstract

The present invention relates to a multi-color writing instrument having an automatic return function, and more particularly, with a simpler configuration, the pen nib of the writing instrument exposed when worn on clothes using a clip is automatically accommodated in the pen housing, so that the pen nib when not in use To prevent damage to clothes and clothes, but improve the structure of the pressing member that simultaneously presses the knobs when the return member rotates so that the product can be assembled without distinguishing the upper and lower directions during product assembly, as well as preventing deformation after injection and assembling state It was invented to prevent product defects in advance and to have excellent reliability and economy.
The configuration of the present invention has a hollow cylindrical shape, and the lower housing 10 through which the pen core entry hole 11 passes through the front end, and is connected to the upper part of the lower housing 10 and to the inside of the guide holes 21 An upper housing 20 in which locking jaws 22 are formed, respectively, a clip member 30 movably installed around a hinge shaft 31 in the upper housing 20, and the clip member 30 and the coil spring 40 elastically installed between the upper housing 20 and the pen cores 50 accommodated inside the upper housing 20 and the lower housing 10 and filled with at least two or more different color inks. And, it is installed to be slidably movable by the guide of the guide hole 21, and has a top locking protrusion 61 and two locking release parts 62 and 63 that are caught on the locking jaw 22, and the end Knobs 60 inserted into and assembled to the pen nibs 50, return springs 70 elastically installed between the pen nibs 50 and the knobs 60, and the clip member 30 A return member 80 extending toward each knob 60 on one side of the hinge shaft 31 so that each of the knobs 60 and the pen nibs 50 are returned by rotating the lower end of the clip member 30 And, between the return member 80 and the knob 60, when the return member 80 inside the upper end of the upper housing 20 is rotated by the guidance of the guide groove 92 drilled between the pillars 91, the knob In that the pressing member 90 for simultaneously pressing the (60) is included,
Guide grooves 93 are recessed on the outer surface of the pillars 91 erected on both the left and right sides of the pressing member 90 to guide the vertical operation inside the upper housing 20,
The lower ends of the pillars 91 are flattened and blocked by the support ribs 94 so that they can come into contact with the contact surfaces 65 located at the tops of the knobs 60,
The upper end of the pillar 91 is molded to be blocked by the connecting teeth 95, respectively, and the circumference of the guide groove 92 formed inside by the both pillars 91, the supporting teeth 94, and the connecting teeth 95 It is characterized in that it is formed to be sealed in a square (□) shape.

Description

Multi-color writing instrument having an automatic return function}

The present invention relates to a multi-color writing instrument having an automatic return function, and more particularly, with a simpler configuration, the pen nib of the writing instrument exposed when worn on clothes using a clip is automatically accommodated in the pen housing, so that the pen nib when not in use To prevent damage to clothes and clothes, but improve the structure of the pressing member that simultaneously presses the knobs when the return member rotates so that the product can be assembled without distinguishing the upper and lower directions during product assembly, as well as preventing deformation after injection and assembling state It was invented to prevent product defects in advance and to have excellent reliability and economy.

In general, pens for various purposes, including ballpoint pens, are composed of a pen nib, a spring, a knob, etc. in a housing, and expose the nib to the outside while elevating the pen nib in the housing.

In addition to the above-mentioned single-color pen, a multi-color writing instrument capable of simultaneously providing and using various colors in one case has recently been widely used.

The multi-color writing instrument is a sliding method using a knob to expose nibs of a plurality of colors, so that nibs of a color desired by the user are extracted during writing, enabling writing.

In this multi-color writing instrument, several pen nibs 50 are mounted in a limited space of the housing and a spring requiring elastic force when the pen nibs 50 protrude and retract, and the upper housing of the body is connected to the pen nibs 50 filled with multicolor ink. Each knob 60 is installed.

The knob 60 slides to the guide hole 21 of the upper housing 20 to be moved and released, and when the selected pen nib 50 is moved, the nib located at the tip is exposed to the outside of the writing instrument.

For example, when the user performs blue writing, the operating unit of the blue knob 60 connected to the blue pen core 50 slides downward.

Then, while the return spring 70 is compressed, the selected knob 60 and the pen core 50 move forward in the housing.

The knob 60 slides in the upper housing 20 in the longitudinal direction in accordance with the direction and number of the pen cores 50 as a guide for the guide holes 21 dug. While moving slightly into the inside, the top locking protrusion 61 formed at the top is caught on the locking jaw 22 formed approximately in the middle of the guide hole 21, so that the core of the pen core 50 protrudes to the outside. It will become possible to write with a blue ballpoint pen.

The same goes for other colored pen nibs.

In this state, as an example, when you want to use the red pen core 50, press the knob 60 of the corresponding color exposed to the outside of the upper housing 20 to release the two locking parts protruding toward the inside ( Among the 62 and 63, the lower end of the disengagement part 63 comes into contact with the upper disengagement part 62 of the red knob 60 and is pressed.

Therefore, the blue knob 60 is returned to its original position by the elasticity of the return spring 70, which has been compressed as the normal locking protrusion 61, which was caught on the locking jaw 22, is separated, and the user can use the red knob By continuing to move the 60 further, the top locking protrusion 61 is caught on the locking jaw 22 formed approximately in the middle of the guide hole 21, and the pen core of the red ballpoint pen core 50 protrudes to the outside. The red pen will become available for writing.

In this way, while accommodating two to five color pen nibs, such as blue, red, and black, in one pen housing, the pen nibs of a desired color can be selected and used as a multi-color writing instrument.

Such a multi-colored writing instrument, in order to accommodate the pen nib exposed to the outside into the housing when it is being carried or stored, any one of the knobs 60 of the remaining collars other than the already protruding pen nib is fixed at the stopper 22. If the pen 61 is moved only by the length to which it can be separated and then operated to return again, all the pen cores 50 and the knob 60 are returned to their pre-use states.

However, when a conventional multi-color writing instrument is inadvertently worn using a clip, for example, in a pocket of clothing, in a state in which one of the pen nibs 50 is exposed to the outside of the housing, the pen nib 50 is damaged or the nib of the pen nib 50 is damaged by clothing. In the case of long-term contact with the ink, the clothes are damaged by the ink, which often makes it difficult for the wearer of the multi-colored writing instrument.

In order to solve this problem, Korean Patent Registration No. 10-1632590 allows all pen nibs to be automatically returned to the inside of the housing when clothing is worn, so that the exposed pen nibs are damaged when clothing is worn or the clothing is soiled by ink. A multi-colored writing instrument that can prevent this from occurring has been proposed.

That is, in the clip member 30, the return member 80 is integrally molded toward the respective knobs 60 on one side of the hinge shaft 31, and the lower end of the clip member 30 is rotated, thereby returning the return member 80 When the return member 80 is rotated inside the upper end of the upper housing 20 between the return member 80 and the knobs 60 so that each of the knobs 60 and the pen nibs 50 are returned. A pressing member 90 for simultaneously pressing the 60 is provided.

When the clip member 30 is moved, the return member 80 automatically returns all the knobs 60 and the pen cores 50 to their pre-initial state states through the pressing member 90, so that the core is damaged or the core is damaged. It is possible to prevent in advance the case of being soiled by ink while being in contact with the clothes for a long time.

As shown in FIG. 12, the pressing member 90 having this function has a guide groove 92 vertically dug between the two pillars 91 in a substantially “∪” shape so that the return member 80 is operated in a inserted state. do.

However, when one side, that is, the upper part is molded open in order to form the guide groove 92 in the pressing member 90, the open upper part after injection molding shrinks inward due to the physical properties of the plastic material, resulting in a bending phenomenon. may occur.

In this way, when the pressing member 90 whose shape is deformed due to bending or the like is assembled to a product, it causes malfunction.

In addition, since attention is required so that the vertical position of the pressing member 90 is not changed in the process of assembling the parts, there is a disadvantage in that productivity is lowered.

Domestic Patent Registration No. 10-1269801 (registration date May 24, 2013) Domestic Patent Registration No. 10-1632590 (registration date: June 16, 2016) Japanese Unexamined Patent Publication No. 2005-111876

The present invention has been made to solve such conventional problems, so that the circumference of the guide groove of the pressing member is molded in a closed shape to prevent deformation after injection molding and to prevent defects after assembly. It is to provide a multi-colored writing instrument.

Another object of the present invention is to provide a multi-color writing instrument capable of greatly improving productivity by improving the pressing member to have a vertically symmetrical structure so that it can be assembled without vertical division direction during product assembly.

Another object of the present invention is to provide a multi-colored writing instrument to improve durability and reliability of the product.

In order to achieve this object, the configuration of the present invention has a hollow cylindrical shape, and the lower housing 10 through which the pen core entry hole 11 passes through the front end;

An upper housing 20 connected to the upper part of the lower housing 10 and having locking jaws 22 formed inside the guide holes 21, respectively;

A clip member 30 axially installed in the upper housing 20 so as to be flexible around the hinge shaft 31;

A coil spring 40 elastically installed between the clip member 30 and the upper housing 20;

Pen cores 50 accommodated in the upper housing 20 and the lower housing 10 and filled with at least two or more different color inks;

It is installed to be slidably movable by the guidance of the guide hole 21, and has a top locking protrusion 61 and two locking release parts 62 and 63 that are caught on the locking jaw 22, and the ends thereof are pen cores. Knobs 60 fitted and assembled into the 50, respectively;

return springs 70 elastically installed between the pen cores 50 and the knobs 60;

Each of the knobs 60 and the pen nibs 50 are returned by extending the clip member 30 toward the knobs 60 on one side of the hinge shaft 31 and rotating the lower end of the clip member 30 The return member 80 to be,

When the return member 80 is rotated between the return member 80 and the knob 60 by the guidance of the guide groove 92 drilled between the pillars 91 inside the upper end of the upper housing 20, the knob 60 ) In that the pressing member 90 for simultaneously pressing them is included,
Guide grooves 93 are recessed on the outer surface of the pillars 91 erected on both the left and right sides of the pressing member 90 to guide the vertical operation inside the upper housing 20,
The lower ends of the pillars 91 are flattened and blocked by the support ribs 94 so that they can come into contact with the contact surfaces 65 located at the tops of the knobs 60,
The upper end of the pillar 91 is molded to be blocked by the connecting teeth 95, respectively, and the circumference of the guide groove 92 formed inside by the both pillars 91, the supporting teeth 94, and the connecting teeth 95 It is characterized in that it is formed to be sealed in a square (□) shape.

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According to the present invention, since all the pen nibs are automatically returned to the inside of the housing when clothes are worn, it is possible to prevent the cases in which the exposed pen nibs are damaged or the clothes are soiled by ink.

In particular, since the guide groove of the pressing member is molded in a □ shape so that the circumference is sealed, there is no opening at the end of the column, so deformation after injection molding can be prevented and defects occurring after assembly can be prevented in advance.

In addition, by improving the pressing member into a vertically symmetrical structure, it is possible to assemble without vertical division direction when assembling the product, thereby providing economic benefits due to productivity improvement.

Therefore, there is an effect of improving both durability and reliability of the product.

1 to 12 show the configuration of a conventionally known multicolor writing instrument having an automatic return function,
1 is a perspective view showing a disassembled state of a clip member in a state in which knobs are assembled;
2 is a perspective view showing a knob;
Figure 3 is a cross-sectional view showing the disassembled main part configuration.
Figure 4 is a cross-sectional view of the main part assembled state showing a storage state in which the knob and the pen core are not pressed.
5 is a cross-sectional view of an assembled main part showing a state in which one knob and a pen core are moved forward for writing.
6 is a cross-sectional view of an assembled main part showing a state in which a clip member is rotated to press another knob in order to wear a multi-color writing instrument on clothes;
7 is a front view showing the structure of a knob;
Figure 8 is an understanding view showing the installation position of the return member and knobs installed on the clip member.
9 is a front view showing a state in which a latch release part of another knob is brought into contact in order to return one knob that has been moved forward;
Fig. 10 is a plan view of Fig. 8;
11 is a side view of the upper housing;
12 is an exploded perspective view showing a state in which the return member is assembled between the knobs and the pressing member is assembled;
13A to 17 show the configuration of the pressing member according to the present invention,
Figure 13a is a perspective view of the pressing member.
Figure 13b is a front view of the pressing member.
14 is an enlarged cross-sectional view of a part of an assembled state.
Figure 145 An understanding view showing the installation state of the clip member, the pressing member, and the knobs.
Fig. 16 is a plan view of Fig. 15;
Fig. 17 is a cross-sectional view showing a disassembled main part configuration;

Hereinafter, a preferred embodiment of the present invention will be described in detail based on the accompanying drawings.

As shown in the drawing, the multi-color writing instrument having an automatic return function of the present invention has, for example, black, red, and blue three-color pen nibs 50 of the desired color in a state accommodated inside the upper housing 20 and the lower housing 10. It is to make the pen core 50 appear and retract by operating the knob 60.

By the push operation of the knob 60, the core of the corresponding color is exposed to the outside to enable writing, and by manipulating the knob 60 of a different color that is not exposed, the color can be replaced or all of the pen cores 50 are inside. It is manipulated so that it can be accepted as

The lower housing 10 has a hollow cylindrical shape, and a pen nib entrance hole 11 passes through the front end so that the nibs of the color pen nibs 50 can enter and exit from the inside.

The upper housing 20 is mainly connected to the upper part of the lower housing 10 by a screw method, and the pen cores 50, the return spring 70, the divider 100, etc. are accommodated in the accommodation space provided therein. be able to

In the circumference of the upper housing 20, guide holes 21 are drilled in the longitudinal direction in consideration of the number of pen nibs 50 installed. Knobs 60 to be described later are hooked in a forward-moving state to enable writing in a state in which the core is exposed.

In addition, a fastening groove 25 is provided in the upper housing 20, and the hinge shaft 31 of the clip member 30 is assembled to the fastening groove 25.

Accordingly, the clip member 30 is movably installed around the hinge shaft 31, and the support shaft 32 is integrally formed to prevent the coil spring 40 installed to maintain elasticity from being separated.

Such a clip member 30 serves to prevent separation in a state in which a multi-colored writing instrument is elastically worn in a pocket of clothing, for example.

The pen nibs 50 are filled with at least two or more different color inks to enable writing through the tip of the nib.

The knobs 60 are installed to slide along the guide hole 21 in a state connected to the pen nib 50 in the longitudinal direction, and the actuator selects the pen nib 50 of the corresponding color so that writing can be performed. am.

Each of these knobs 60 is made of synthetic resin and has the same structure. At the uppermost end, a top locking protrusion 61 is formed so as to be caught on the locking jaw 22 of the guide hole 21, and they are spaced apart from each other in the longitudinal direction. Two disengagement parts 62 and 63 each protrude toward the side.

When the user wants to use the blue pen nib 50 as an example, when the knob 60 of the corresponding color exposed to the outside of the upper housing 20 is pressed, it is moved to the guide hole 21 and the top of the uppermost part is moved. The protrusion 61 is caught on the protrusion 22 and cannot be raised even with the elasticity of the return spring 70, so that writing is possible (FIG. 5).

And, in this state, when the knob 60 of the corresponding color is pressed to use the red pen nib 50, it moves along the guide hole 21 and the blue knob ( 60) while the lower side disengagement part 63 of the red knob 60 contacts the upper disengagement part 62, a pressing force is applied in a direction substantially perpendicular to the moving direction of the knob 60. (FIG. 9 )

Therefore, the blue knob 60 is returned to its original position by the elasticity of the return spring 70, which was compressed as the normal locking protrusion 61, which was caught on the locking jaw 22, was separated.

Subsequently, as the user continues to move the red knob 60 further, the normal locking protrusion 61 is caught on the locking protrusion 22 formed approximately in the middle of the guide hole 21, and the red pen core 50 The core protrudes to the outside, making it possible to write with a red ballpoint pen.

In this way, while accommodating multi-color pen nibs such as blue, red, and black, it is possible to select a pen nib of a desired color and use it as a multi-color writing instrument.

In addition, any one of the knobs 60 of the remaining collars other than the already protruding pen core 50 is moved from the locking jaw 22 to a length that allows the normal locking protrusion 61 to be separated, and then operated to return again. When doing so, all the pen nibs 50 and the knob 60 are returned to their pre-use states.

The divider 100 guides the movement of the pen cores 50 in a separated state inside the upper housing 20 .

In addition, a hollow cylindrical rubber pad 110 is assembled to the outside of the lower housing 10 to improve the contact feeling when the user writes.

The cap 120 is firmly assembled at the top of the upper housing 20 to finish the exterior beautifully and prevent foreign matter from being introduced into the interior.

On the other hand, when the writing instrument is worn on clothes using the clip member 30, all the pen nibs 50 are automatically accommodated in the housing to prevent damage to the nibs and clothes.

That is, when the return member 80 is integrally molded toward the center where each knob 60 is installed on one side of the hinge shaft 31 of the clip member 30, and the lower end of the clip member 30 is rotated, As the return member 80 is rotated, each of the knobs 60 and the pen nibs 50 are returned to their initial states.

When the lower end of the clip member 30 is artificially opened in the process of being worn by a user in a pocket of clothing, etc., the return member 80 is located at the top of the knob 60 around the hinge axis 31. (65) is rotated in the pressing direction. (FIG. 6)

At this time, as a result of the return member 80 pressing any one knob 60 or two or more knobs 60 that have not been moved downward, it moves downward along the guide hole 21 and has already descended. As the upper disengaging portion 62 of the existing knob 60 comes into contact with the lower disengaging portion 63 of the newly pressed knob 60, a pressing force in a direction substantially perpendicular to the vertical direction of the knob 60 is applied. It works. (FIG. 9)

The lowered knob 60 moves the pen core 50 and the knob 60 at the same time as the pen core 50 by the elasticity of the return spring 70 as the normal locking protrusion 61 is separated from the locking protrusion 22 of the guide hole 21. After returning to the state, the core is accommodated into the pen core entry hole 11 of the lower housing 10 .

Therefore, when the clip member 30 is moved, all the knobs 60 and the pen nibs 50 are automatically returned to the state before initial use, so that the core is damaged or dirty by ink while in contact with clothing for a long time. This is something that can be prevented from happening.

Here, the end of the return member 80 is located on the contact surface 65 formed between the top engaging protrusion 61 of each knob 60 and the upper engaging release part 62. (FIGS. 8 and 10 )

In addition, a pressing member 90 is provided between the return member 80 and the knob 60 to simultaneously press the knobs 60 when the return member 80 rotates inside the upper end of the upper housing 20. do.

The pressure member 90 has guide grooves 92 dug between the pillars 91 erected on both sides so that the return member 80 is inserted and operated, and on both outer surfaces of the pillars 91, the upper housing ( 20), guide grooves 93 are dug so as to be inserted into guide protrusions formed on the inside and guide up and down vertical operation.

The present invention is characterized in that the configuration of the pressing member 90 is improved so that the strength is reinforced, deformation is prevented after injection molding, and assembly property is improved.

That is, the guide grooves 92 pierced through the pressing member 90 are integrally molded so that the lower ends of the pillars 91 are closed with support ribs 94 and the upper ends with connecting ribs 95. The shape of (92) is molded so that its circumference is sealed in a square (□) shape when viewed from the front. (FIGS. 13a and 13b)

In this way, the circumference of the guide groove 92 is all sealed, so that both sides are blocked by the pillars 91, the lower end is blocked by the support ribs 94, and the upper end is blocked by the connecting rib 95, respectively. By molding, there is no opening at the ends of the pillars 91 as in the prior art.

Therefore, it is possible to prevent deformation of the pressing member 90 after injection molding and prevent defects after assembly in advance, and by improving the pressing member 90 to a vertically symmetrical structure, when assembling a product Productivity is improved because it can be assembled without up-and-down directionality.

In the multi-color writing instrument of the present invention having such a configuration, the moment the clip member 30 artificially spreads the lower end in the process of being worn in a pocket of clothing, the return member 80 moves through the pressing member 90 to each knob 60. It is rotated in the direction in which the contact surface 65 is pressed. (FIG. 14)

The diameter of the lower end of the pressing member 90 is designed so that it can come into contact with the contact surface 65 formed between the top engaging protrusion 61 of each knob 60 and the upper engaging release part 62. (FIG. 15) )

Therefore, when the clip member 30 is moved, the return member 80 automatically returns all the knobs 60 and the pen cores 50 to the state before initial use through the pressing member 90, so that the nib is damaged, It is possible to prevent the core from being soiled by ink while being in contact with clothes for a long time.

The operation of the clip member 30 rotates all the knobs 60 by rotating the return member 80 as described above even in a state in which one of the pen nibs 50 is lowered and the nib is not exposed to the outside through the pen nib inlet hole 11. ) are pressurized, but the state in which all have already been restored is maintained.

In order to reinforce the strength of the return member 80, it is preferable to integrally protrude ribs along both sides of the upper surface along the longitudinal direction.

Here, the cap 120 serves to prevent the pressing member 90 from escaping to the outside of the upper housing 20 while being returned by the elasticity of the return spring 70, and to maintain a state stably received inside. .

In the drawings, as an example for convenience, a multi-color writing instrument having a structure in which three pen cores 50 and a knob 60 are operated is illustrated, but it should be noted that 2 to 5 colors are also possible.

The present invention described above is not limited by the above-described embodiments and drawings, and it is common knowledge in the art that various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. will be clear to those who have

10 - lower housing 11 - pen core entry hole
20 - upper housing 21 - guide hole
22 - locking jaw 30 - clip member
31 - hinge shaft 40 - coil spring
50 - pen core 60 - knob
61 - normal locking projection 62,63 - locking projection
65 - contact surface 70 - return spring
80 - return member 90 - pressing member
91 - column 92 - guide groove
94 - support ribs 95 - connecting ribs

Claims (1)

A lower housing 10 having a hollow cylindrical shape and having a pen core entry hole 11 passing through the front end;
An upper housing 20 connected to the upper part of the lower housing 10 and having locking jaws 22 formed inside the guide holes 21, respectively;
A clip member 30 axially installed in the upper housing 20 so as to be flexible around the hinge shaft 31;
A coil spring 40 elastically installed between the clip member 30 and the upper housing 20;
Pen cores 50 accommodated in the upper housing 20 and the lower housing 10 and filled with at least two or more different color inks;
It is installed to be slidably movable by the guidance of the guide hole 21, and has a top locking protrusion 61 and two locking release parts 62 and 63 that are caught on the locking jaw 22, and the ends thereof are pen cores. Knobs 60 fitted and assembled into the 50, respectively;
return springs 70 elastically installed between the pen cores 50 and the knobs 60;
Each of the knobs 60 and the pen nibs 50 are returned by extending the clip member 30 toward the knobs 60 on one side of the hinge shaft 31 and rotating the lower end of the clip member 30 The return member 80 to be,
When the return member 80 is rotated between the return member 80 and the knob 60 by the guidance of the guide groove 92 drilled between the pillars 91 inside the upper end of the upper housing 20, the knob 60 ) In that the pressing member 90 for simultaneously pressing them is included,
Guide grooves 93 are recessed on the outer surface of the pillars 91 erected on both the left and right sides of the pressing member 90 to guide the vertical operation inside the upper housing 20,
The lower ends of the pillars 91 are flattened and blocked by the support ribs 94 so that they can come into contact with the contact surfaces 65 located at the tops of the knobs 60,
The upper end of the pillar 91 is molded to be blocked by the connecting teeth 95, respectively, and the circumference of the guide groove 92 formed inside by the both pillars 91, the supporting teeth 94, and the connecting teeth 95 A multi-color writing instrument with an automatic return function, characterized in that it is formed to be sealed in a square (□) shape.

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