KR100361071B1 - Safety Knock-Type Writing Utensil - Google Patents

Abstract

The length of the writing core can be formed long while keeping the outer tube thin, and since the hook of the clip is not inserted into the collar or the pocket collar while the tip portion of the writing core is exposed, a predetermined shape can be prevented from clothing being contaminated with ink. Is formed in the outer cylinder and the guide hole is formed to a predetermined length, the clip is assembled and the outer ring is formed in the outer cylinder, inserted into the interior of the inner cylinder is stored in the ink and the tip is installed at one end is written An elastic member which is installed inside the outer shell and always exerts a force on the writing core opposite to the tip, and is inserted between the pressing member and the pressing member and the writing core so as to be movable in the outer cylinder on the opposite side of the elastic member. When the pressing member advances the first time, it moves forward to maintain the writing state where the tip of the writing core is exposed, and the pressing member moves forward the second time. Then, it moves backward by the elastic force of the elastic member and operates in a released state in which the tip of the writing core is concealed. The knock member is installed with an eccentric shaft, and is installed in the guide hole of the outer cylinder. And a safety knock type writing instrument including a safety member positioned in a guide hole of the outer cylinder away from the ring of the clip.

Description

Safety Knock-Type Writing Utensil}

The present invention provides a safety knock-type writing instrument that prevents the tip of the writing core from directly contacting the pocket fabric of the clothes or the shirt to prevent ink from leaking by preventing the clip from being inserted into the collar or the pocket collar when the tip portion of the writing core is exposed. It is about.

In general, writing instruments include pencils, ballpoint pens, and signature pens. Applicators for applying a correction liquid or the like are known as instruments similar to writing instruments.

The writing instrument is a fixed type to protect the exposed tip portion using the lid and the exposed tip is fixed to the outer cylinder in the state that the tip is exposed, and the writing unit is movable to assemble the outer cylinder and the tip is exposed to the outside of the outer cylinder according to the operation of the pressing member. There is a knock type that can be inserted or inserted.

Conventional knock-type writing instruments are configured such that when the pressing member is pressed once, the writing core is moved so that the tip portion is exposed to the outside of the cap fixed to the lower end of the outer cylinder, and when the pressing member is pressed again, the writing core is moved and the tip portion is concealed into the cap fixed to the outer cylinder. .

A spring is installed at the lower end of the writing core of the knock type writing instrument as described above to apply a force to the opposite side of the tip portion, and once the pressing member is pressed, the moved state is maintained and the knock means is installed to return.

However, in the above method, the user forms the pocket formed on the clothes such as a suit or shirt with the tip portion of the writing core exposed while forgetting to conceal the tip portion of the writing core inside the cap fixed to the outer cylinder by reactivating the knocking means. If you put the hook of the clip formed on the upper portion of the outer cylinder in the storage case, and insert the writing instruments in the pocket with the tip exposed as described above, the clothes are discharged by the ink flowing as the tip contacts the cloth Contamination or staining may occur.

Recently, in order to solve the above problems, the safety knock type is configured to automatically conceal the tip of the writing instrument to the inside of the cap fixed to the outer cylinder when lifting the hook of the clip fixed to the outer cylinder in order to insert the writing instrument into the pocket of the clothes, etc. Writing instruments have been proposed.

However, in the conventional safety knock writing instruments, since the components for the safety knock must be inserted between the outer cylinder and the writing core of the writing instrument, the inner diameter of the outer cylinder becomes large, resulting in aesthetic and / or inconvenience in use.

In addition, since the safety knock is made at the end of the loop of the clip, and a component for the safety knock is essentially installed at the position, the length of the writing lead is shortened, which reduces the amount of ink stored and decreases the efficiency.

Therefore, in order to maintain the same amount of ink storage, the thickness of the writing lead must be thick, but in this case, the sealing agent that prevents the ink from flowing backward inside the writing lead becomes weaker in surface tension as the thickness of the writing lead becomes thicker. Occurs.

An object of the present invention is to solve the problems as described above, the eccentric shaft is installed on the knock member installed inside the outer cylinder so as to form a longer length of the writing core while keeping the outer cylinder thin, and guide holes in the longitudinal direction of the outer cylinder It is formed and installed in the guide hole of the safety member coupled to the eccentric shaft and the safety member is reciprocated in the radial direction of the outer cylinder, so that the hook of the clip on the collar or pocket collar with the tip portion of the writing core exposed It is to provide a knock writing instruments.

1 is an exploded perspective view schematically showing a first embodiment of a safety knock-type writing implement according to the present invention.

Figure 2 is a cross-sectional view showing a writing state in the first embodiment of the safety knock-type writing implement according to the present invention.

Figure 3 is a cross-sectional view showing a release state in the first embodiment of the safety knock-type writing implement according to the present invention.

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

Figure 5 is a development view showing a rotating projection in the first embodiment of the safety knock-type writing instruments according to the present invention.

Figure 6 is a cross-sectional view showing a knock member in a first embodiment of the safety knock-type writing instruments according to the present invention.

7 is a perspective view schematically showing a second embodiment of the safety knock-type writing implement according to the present invention.

8 is a cross-sectional view showing a writing state in the second embodiment of the safe knock writing instruments according to the present invention.

9 is a cross-sectional view showing a release state in a second embodiment of the safety knock-type writing implement according to the present invention.

10 is a cross-sectional view showing a third embodiment of the safety knock-type writing instruments according to the present invention.

11 is a cross-sectional view showing a release state in a third embodiment of the safety knock-type writing implement according to the present invention.

The safety knock-type writing implement proposed by the present invention is formed in a predetermined shape and has a guide hole formed in a predetermined length in a longitudinal direction on one side portion, and is assembled at one end of the outer cylinder and the length of the outer cylinder at one side. A writing loop having a long ring in the direction, a writing lead inserted into the outer cylinder and having ink stored therein and having a writing tip at one end thereof, and a writing lead always installed inside the outer cylinder An elastic member exerting a force on the opposite side of the tip, a pressing member exposing one end portion to the outer side of the outer cylinder so as to be movably inserted into the outer cylinder from the opposite side of the elastic member and applying a pressing force, and the pressing member Is installed between the writing core and the writing member, and when the pressing member advances the first time, it moves forward to maintain the writing state in which the writing tip is exposed. When the pressing member is moved forward a second time, it moves backward by the elastic force of the elastic member and operates in a released state in which the tip of the writing core is concealed, and the knock member is installed in the eccentric shaft, and installed in the guide hole of the outer cylinder. And a safety member coupled to the eccentric shaft and positioned adjacent to the ring of the clip in the writing state and positioned in the guide hole of the outer cylinder away from the ring of the clip in the released state.

The safety member is provided with a coupling groove into which the eccentric shaft of the knock member is inserted and positioned in the radial direction of the outer cylinder, and connected to the engaging portion to be predetermined in the longitudinal direction of the outer cylinder. It consists of a plate-shaped engaging portion is formed in the length of the inserted into the guide hole of the outer cylinder.

Next, a preferred embodiment of the safety knock-type writing instrument according to the present invention will be described in detail with reference to the drawings.

First, the first embodiment of the safety knock-type writing instruments according to the present invention is formed in a predetermined shape, as shown in Figures 1 to 4, the guide hole 8 is formed in a predetermined length in the longitudinal direction on one side portion An outer cylinder 2, a writing core 10 inserted into the outer cylinder 2 and having a writing tip 12 installed at one end thereof, and assembled at one end of the outer cylinder 2; And a clip 30 having a ring 32 formed in the longitudinal direction of the outer cylinder 2 at one side thereof, a cap 20 assembled to the outer cylinder 2 at the opposite side of the clip 30, and An elastic member 26 installed between the cap 20 and the writing core 10 to apply a force in the opposite direction of the cap 20 to the writing core 10, and an opposite side of the elastic member 26. The pressing member 40 is inserted into the outer cylinder (2) so as to be movable in the longitudinal direction, and is installed between the pressing member 40 and the writing lead 10 and the image When the pressing member 40 advances first toward the cap 20, the pressing member 40 moves forward to maintain the writing state (see FIG. 2) in which the tip 12 of the writing lead 10 is exposed to the outside of the cap 20. When the pressing member 40 is advanced again a second time, it is moved backward by the elastic force of the elastic member 26 to release the tip 12 of the writing lead 10 completely concealed inside the cap 3. It is operated in a state (see FIG. 3) and is provided in the knock member 50 in which the eccentric shaft 56 is installed, and installed in the guide hole 8 of the outer cylinder 2 and coupled to the eccentric shaft 56. In the state (see FIG. 2), the guide hole of the outer cylinder 2 is located adjacent to the ring 32 of the clip 30 and away from the ring 32 of the clip 30 in the released state (see FIG. 3). And a safety member 60 located at (8).

Ink is stored in the writing core 10, and a tip 12 is provided at one end of the writing core 10 to which writing is made and the ball is rotatably assembled.

The upper portion of the outer cylinder (2) forms an assembly portion (6) in which the clip (30) is assembled in a cross section smaller than the cross section of the outer cylinder (2), and the cap 20 described above at the opposite end (lower) The male screw 4 to be assembled is formed.

The cap 20 assembled to the male screw 4 formed at the lower portion of the outer cylinder 2 is formed in a substantially cone shape, and the female screw 22 is formed in the cone-shaped cap 20 to form the outer cylinder ( The tip 12 of the writing lead 10, which is assembled to the male screw 4 formed in the lower part of 2) and is placed to be movable in the longitudinal direction in the inside of the outer cylinder 2, is inside the cone shape of the cap 20. Located in

In the above description, the female screw 22 and the male screw 4 are formed in the cap 20 and the outer cylinder 2 to be assembled and fixed. However, the present invention is not limited thereto. It is also possible to form to be assembled by fitting to the bottom of 2), it is also possible to form one or more projections or to form an upper portion of the cap 20 by the tapered surface can be configured to ensure that the assembled state.

The elastic member 26 fitted between the cap 20 and the writing core 10 is made using a compression coil spring.

1 and 2, the clip 30 includes a stopper 31 assembled to the upper assembly 6 of the outer cylinder 2, and the upper center of the stopper 31. There is formed a hole 33 in which the pressing member 40 is movably inserted.

In addition, the clip 30 further includes a ring 32 protruding from one side of the stopper 31 so as to be inserted into a collar or a pocket collar and extending in a predetermined length in the longitudinal direction of the outer cylinder 2. .

The end of the ring 32 is formed by protruding the support protrusion 34 toward the outer cylinder (2) in order to improve the support force for supporting the cloth when plugged into the collar or pocket collar.

Although the clip 30 has been described as being assembled and fixed to the assembly portion 6 formed on the upper portion of the outer cylinder 2, the one or more protrusions or tapered surfaces are formed to ensure the assembled state. It is also possible to form and assemble a female screw and a male screw on the stopper 31 of the clip 30 and the assembly portion 6 of the outer cylinder 2, respectively.

The pressing member 40 is formed in a cylindrical shape, one side is blocked, it is preferable to form a rounded curved surface so that the closed one side is beautiful and does not feel the hand poke when pressed with a finger.

As shown in FIG. 1, one or more guide grooves 73 and guide protrusions 72 are alternately formed along the circumference of the outer cylinder 2.

In addition, the inner surface of the outer cylinder (2) as shown in Figures 1 and 5, one side of the lower side of the guide projection 72 is formed as a vertical surface 75 along the longitudinal direction and the other surface is a clip (30) Rotating protrusion 74 formed by the inclined surface 76 which is inclined spirally toward the side is formed to protrude in the center direction.

The inclined surface 76 of the rotating protrusion 74 is formed to be inclined to rotate 360 ° 1, 180 ° from the vertical surface 75 is formed in a gentle slope, the remaining 180 ° to the vertical surface 75 is formed in a sharp slope.

It is preferable that the inclination height of the gentle inclination is formed to be about 1 to 2 mm, since the distance that the tip 12 of the writing lead 10 is reversed in the state where the tip 12 of the writing core 10 is exposed to the maximum is small so that the writing amount can be maintained.

In addition, the inclination height of the steep inclination is preferably set so that the tip 12 of the writing lead 10 exposed to the outside of the cap 20 in the writing state (see FIG. 2) is completely concealed.

At the point where the gentle inclination meets the sharp inclination (opposite to the vertical surface 75), a concave return preventing groove 77 is formed toward the stopper 31 of the clip 30, and the vertical surface 75 and the inclined surface ( At the vertex where 76) meets, a seating groove 78 is formed.

The return preventing groove 77 and the mounting groove 78 is formed so that the upper surface is located toward the stopper 31 of the clip 30 than the inclined surface (76).

In addition, the rotation protrusion 74 has a vertical surface 75 and a seating groove 78 on the opposite side of the ring 32 of the clip 30, and the return preventing groove 77 on the ring 32 side of the clip 30. To be located.

As shown in Figure 1, the outer peripheral surface of the pressing member 40 is formed to protrude to the lower end at a predetermined interval along the circumference and is movably inserted into the guide groove 73 of the outer cylinder (2) One or more moving protrusions 42 are formed at a height not caught by the rotating protrusion 74.

In addition, a plurality of teeth 44 are formed on the lower end surface of the pressing member 40.

As shown in FIG. 1, the knock member 50 is connected to the insertion part 55 inserted into the pressing member 40 and the insertion part 55, and the upper surface of the knock member 50 is formed along the circumference. The knock part 51 in which the tooth | gear 54 which engages with the tooth | gear 44 of the press member 40 is formed, The eccentric shaft 56 which is installed eccentrically below the said knock part 51, and said The contact portion 57 is provided below the eccentric shaft 56 and in contact with the upper surface of the writing core 10.

On the outer circumferential surface of the knock portion 51, the knock protrusion 52 is formed to be caught by the rotary protrusion 74 and move along the inclined surface 76 and the vertical surface 75.

The upper surface of the knock protrusion 52 is formed of an inclined surface 53 corresponding to the inclined surface 76 of the rotating protrusion 74.

The knock protrusion 52 is formed on the outer circumferential surface of the side on which the eccentric shaft 56 is installed.

As shown in FIG. 6, the knock member 50 integrally forms the insertion portion 55 and the knock portion 51, integrally forms the eccentric shaft 56 and the contact portion 57, and the knock portion 50. It is preferable to configure so that 51 and the eccentric shaft 56 may be combined.

That is, the assembly groove 59 is formed on the bottom surface of the knock portion 51, and the upper end of the eccentric shaft 56 is inserted into the assembly groove 59.

When the teeth 44 of the pressing member 40, the knock protrusion 52 and the teeth 54 of the knock member 50, the guide groove 74 and the guide protrusion 73 of the outer cylinder 2 are assembled, The knock member 50 is always formed to be in a state of applying a force to rotate in one direction.

In other words, in the state in which the elastic force of the elastic member 26 is actuated, the vertices of the teeth 44 of the pressing member 40 and the vertices of the teeth 54 of the knock member 50 do not coincide with each other and are offset from each other. Form.

When formed as described above, the teeth 44 of the pressing member 40 and the teeth 54 of the knock member 50 inclined to each other when the elastic force of the elastic member 26 acts to slide, but the pressing member 40 Since the moving projection 42 of the) is inserted into the guide groove 73, the rotation of the pressing member 40 is constrained, the rotational force acts on the knock member 50.

As shown in FIGS. 1 and 4, the safety member 60 is provided with a coupling groove 63 into which the eccentric shaft 56 of the knock member 50 is inserted, and the diameter of the outer cylinder 2. A plate-shaped coupling portion 62 positioned in the direction, and connected to the coupling portion 62 to form a predetermined length in the longitudinal direction of the outer cylinder 2, and the guide hole 8 of the outer cylinder 2; It consists of a plate-shaped locking portion 64 is inserted into.

The end portion of the coupling portion 62 is formed so as to be open to both sides when the eccentric shaft 56 is inserted into the coupling groove 63, and comes back after the eccentric shaft 56 is inserted. It is configured to have a predetermined elasticity so as to support the eccentric shaft 56.

In addition, the coupling groove 63 has an elliptical shape so as to absorb the movement of the safety member 60 to the side when the eccentric shaft 56 cranks as the knock member 50 rotates. It is preferable to form.

The locking portion 64 is formed with an insertion hole 65 into which the support protrusion 34 of the clip 30 and the ring 32 is inserted.

As shown in FIG. 1, the writing core 10 is preferably provided with a lid 18 in order to facilitate contact with the contact portion 57 of the knock member 50.

Next will be described the operation of the safety knock-type writing instruments according to the present invention configured as described above.

First, when the user presses the pressing member 40 to write in the released state as shown in Figure 3, the knock member 50 in contact with the pressing member 40 is moved forward, the writing core 10 described above The elastic member 26 overcomes the elastic force and moves toward the cap 20 so that the tip 12 end of the writing lead 10 is exposed to the outside of the cap 20.

The inclined surface 53, which is the upper end surface of the knock protrusion 52 of the knock member 50, is lower than the sharp point where the vertical surface 75 and the inclined surface 76 of the rotation protrusion 74 formed on the outer cylinder 2 meet. If the position (knock projection 52 of the knock member 50 is positioned downward to the bottom of the rotary projection 74), the knock member 50 is a tooth 44 of the tooth 54 and the pressing member 40. ) Rotate to engage.

When the force used to press the pressing member 40 in the above state is removed, the knock member 50 moves backward by the elastic force of the elastic member 26 transmitted through the writing core 10. 52 is rotated by 180 ° in contact with the inclined surface 76 of the rotation protrusion 74 and rotates 180 °, and when the knock protrusion 52 is inserted into the return preventing groove 77 of the rotation protrusion 74, the knock member The movement of the 50 is restrained, and the writing state (see FIG. 2) in which the tip 12 of the writing lead 10 is exposed to the outside of the cap 20 is maintained.

At this time, since the pressing member 40 is located in the guide groove 73 formed between the guide protrusions 72 without the moving protrusions 42 being caught by the rotary protrusions 74, the stopper of the knock member 50 and the clip 30 is closed. It is a state which can move freely up and down between 31.

In the writing state as described above (see FIG. 2), since the knock protrusion 52 is located in the return preventing groove 77 formed on the hook 32 side of the clip 30, an eccentric shaft installed on the same side as the knock protrusion 52. 56 is located close to the ring 32, the safety member 60 coupled to the eccentric shaft 56 is located adjacent to the ring (32).

Therefore, when the user tries to plug in the lapel or pocket in the handwriting state (see Fig. 2), since the loop 32 and the safety member 60 is located adjacent to the gap between the loop 32 and the outer cylinder (2) the safety member (60) is blocked and cannot be plugged into a lapel or pocket.

In the writing state as described above (see FIG. 2), when the user writes and presses the pressing member 40 again for the second time, the knock member 50 moves forward, and the knock protrusion 52 is described above. It is disengaged from the state inserted in the return preventing groove 77.

At this time, the knock member 50 is rotated again while the knock protrusion 52 is positioned outside the portion where the return preventing groove 77 is formed.

When the force that pressed the pressing member 40 in the above state is removed, the writing lead 10 moves backward by the elastic force of the elastic member 26, and the knock member 50 and the pressing member 40 in turn Moving backward, the tip 12 of the writing lead 10 is in a released state (see Fig. 3) is completely concealed into the cap 20.

At this time, since the knock protrusion 52 rotates 180 ° along the steep inclination of the inclined surface 76 of the rotation protrusion 74, the backward movement of the knock member 50 is smoothly performed, and the knock protrusion 52 is a seating groove. 78 is inserted.

As described above, as the pressing member 40 is repeatedly pressed for the first time and the second time, the writing state (see FIG. 2) and the release state (see FIG. 3) are repeated.

When the release state (see Fig. 3) as described above, because the knock protrusion 52 is located on the seating groove 78 side, the eccentric shaft 56 is located opposite the ring 32 of the clip 30, safety The member 60 is positioned in a state of being inserted away from the ring 32 into the guide hole 8 of the outer cylinder 2.

Therefore, when the user wants to plug in the collar or pocket collar, there is a gap between the ring 32 and the outer cylinder 2, it is easy to store.

And the second embodiment of the safety knock-type writing instruments according to the present invention is formed in a predetermined shape, as shown in Figures 7 to 9, the guide hole 8 is formed in a predetermined length in the longitudinal direction on one side portion An outer cylinder 2, a writing lead 10 inserted into the outer cylinder 2 and having a writing tip 12 installed at one end thereof, and assembled at one end of the outer cylinder 2; The stopper 31, the cap 20 assembled to the outer cylinder 2 on the opposite side of the stopper 31, and the cap 20 and the writing lead 10 are installed between the writing An elastic member 26 for applying a force in the opposite direction of the cap 20 to the shim 10 and a pressing member movably inserted in the longitudinal direction into the outer cylinder 2 on the opposite side of the elastic member 26. 40 is installed between the pressing member 40 and the writing lead 10, and when the pressing member 40 is moved forward toward the cap 20, the advance is performed. The tip 12 of the writing lead 10 to maintain the writing state (see Fig. 8) is exposed to the outside of the cap 20 and the pressing member 40 to advance the second time the elastic member ( The knock which the eccentric shaft 56 is installed and operates in the release state (refer to FIG. 9) in which the tip 12 of the writing lead 10 is completely concealed into the cap 3 by moving backward by the elastic force of 26). The guide hole 8 of the outer cylinder 2 is provided in the member 50 and the guide hole 8 of the outer cylinder 2 and is coupled to the eccentric shaft 56 in the writing state (see FIG. 8). ) And in the released state (see FIG. 9) includes a safety member 60 which is spaced outward from the guide hole 8 of the outer cylinder 2.

In addition, another embodiment of the safety knock-type writing instruments according to the present invention, unlike the first embodiment described above, the knock projection 52 formed on the knock member 50 on the outer peripheral surface opposite to the eccentric shaft 56 is installed. Form.

In addition, the safety member 60 forms a support protrusion 66 protruding toward the writing lead 10 at the end of the locking portion 64.

In the second embodiment of the safety knock-type writing implement according to the present invention configured as described above, the eccentric shaft 56 of the knock member 50 is the guide hole 8 of the outer cylinder 2 in the writing state (see FIG. 8). Since it is located on the opposite side, the above-mentioned safety member 60 is located in the guide hole 8 so that it cannot be inserted into a collar or pocket collar.

On the other hand, in the released state (see FIG. 9), the eccentric shaft 56 of the knock member 50 is located in the guide hole 8 side of the outer cylinder 2, so that the safety member 60 is the guide hole 8. Since the locking portion 64 is located at a predetermined interval from the outer cylinder 2, the locking portion 64 can be stored by plugging the locking portion 64 into a collar or pocket collar.

At this time, since the collar or pocket collar is bent and positioned by the support protrusion 66, it is not easily detached to maintain the storage state.

Also in the second embodiment of the safety knock-type writing implement according to the present invention as described above to remove the hook 32 of the clip 30 and to use the locking portion 64 of the safety member 60 in place of the hook 32 Except for the configuration described above, since the configuration can be performed in the same manner as in the first embodiment, detailed description is omitted.

And the third embodiment of the safety knock-type writing implement according to the present invention, as shown in Figure 10 and 11, the support projection of the safety member 60 in place of the guide hole 8 in the outer cylinder (2) ( A projection hole 9 into which the 66 is inserted and a coupling hole 7 into which the engaging portion 62 of the safety member 60 is inserted are formed.

The third embodiment of the safety knock-type writing implement according to the present invention configured as described above is located in close contact with the outer cylinder (2) in the writing state (see Fig. 10) the support projections (66) Since the state is inserted into the projection hole (9) there is no gap to be inserted into the collar or pocket collar, etc. can not be inserted.

On the other hand, in the released state (see FIG. 11), the safety member 60 is separated from the guide hole 8 so that the locking portion 64 is positioned at a predetermined distance from the outer cylinder 2, so that the collar or the pocket It is possible to insert the locking portion 64 on the back.

Also in the third embodiment of the safety knock-type writing implement according to the present invention as described above can be carried out in the same configuration as the second embodiment, except for the above-described configuration, detailed description thereof will be omitted.

In the above description of the preferred embodiment of the safety knock-type writing instruments according to the present invention, the present invention is not limited to this, it is possible to perform various modifications within the scope of the claims and the detailed description of the invention and the accompanying drawings. This also belongs to the scope of the present invention.

According to the safety knock-type writing instrument according to the present invention as described above, in the writing state in which the tip end of the writing lead is exposed to the outside of the cap, the hook of the clip cannot be inserted into the pocket, etc., so that ink flows and contaminates clothes. It does not happen.

In addition, according to the safety knock-type writing instruments according to the present invention, since the safety member is inserted into the safety hole formed in the outer cylinder for safe operation, it is possible to keep the thickness of the outer cylinder thin, thereby producing a beautiful and stylish writing instrument.

And according to the safety knock-type writing instruments according to the present invention, because the knock operation is made at the end of the clip rather than the end of the loop of the clip, it is possible to form a long length of the writing lead, the ink is stored without forming a thick writing lead You can increase the amount.

Claims (8)

An outer cylinder formed in a predetermined shape and having a guide hole formed at a predetermined length in a longitudinal direction on a portion of one side; The writing core is inserted into the outer cylinder and the tip is installed at one end of the writing is made, A clip assembled at one end of the outer cylinder and formed with a ring extending in the longitudinal direction of the outer cylinder at one side; A cap assembled to the outer cylinder on the opposite side of the clip, An elastic member installed between the cap and the writing core to apply a force to the writing core in a direction opposite to the cap; A pressing member inserted into the outer cylinder so as to be movable in the longitudinal direction from the opposite side of the elastic member; It is installed between the pressing member and the writing lead, and if the pressing member is moved forward toward the cap for the first time, it moves forward to maintain the writing state in which the tip end of the writing lead is exposed to the outside of the cap, and advances the pressing member again for the second time. The knock member is moved backwards by the elastic force of the elastic member to operate in a state in which the tip of the writing core is completely concealed into the cap and the eccentric shaft is installed; And a safety member installed in the guide hole of the outer cylinder and coupled to the eccentric shaft to be adjacent to the hook of the clip in the writing state and positioned away from the hook of the clip in the released state. Safe knock writing instruments. According to claim 1, The inner surface of the outer cylinder is formed alternately with one or more guide grooves and guide projections along the circumference, One side of the lower side of the guide projection located opposite the ring of the clip is formed in the vertical plane along the longitudinal direction and the other side protrudes in the center direction to the rotating projection formed in the inclined surface spirally spiral toward the clip Safe knock writing instruments to form. According to claim 2, wherein the inclined surface of the rotating projection is formed to be inclined to rotate 360 ° 1, 180 ° from the vertical surface is formed in a gentle slope, the remaining 180 ° to the vertical surface is formed in a sharp slope, At the point where the gentle inclination and the sharp inclination, which are located on the ring side of the clip, meet, a concave return preventing groove is formed toward the clip. Safety kink writing instruments to form a seating groove in the concave vertex where the vertical surface and the inclined surface meet. According to claim 2, The outer peripheral surface of the pressing member is formed to protrude to the lower end at a predetermined interval along the circumference and is inserted into the guide groove of the outer cylinder so as not to be caught by the rotating projections one To form an ideal moving protrusion, The lower end surface of the pressing member forms a plurality of teeth, The knock member has an insertion portion inserted into the pressing member, and is formed in connection with the insertion portion, and the upper surface is formed with a tooth engaging the teeth of the pressing member along the circumference and the eccentric shaft is installed. On the outer circumferential surface, a knock portion formed with a knock protrusion moving along the rotating protrusion, an eccentric shaft which is installed eccentrically toward the knock protrusion below the knock portion, and is installed below the eccentric shaft and on the upper surface of the writing core. Safety knock writing instrument consisting of a contact portion in contact. The safety knock type according to claim 4, wherein the knock member integrally forms the insertion portion and the knock portion, integrally forms the eccentric shaft and the contact portion, and forms an assembly groove into which the eccentric shaft is inserted into the bottom of the knock portion. Writing utensils. According to claim 1, wherein the safety member is formed with a coupling groove into which the eccentric shaft of the knock member is inserted is formed in the plate-shaped coupling portion located in the radial direction of the outer cylinder, Safety knock-type writing instruments connected to the engaging portion formed of a predetermined length in the longitudinal direction of the outer cylinder and inserted into the guide hole of the outer cylinder. An outer cylinder which is formed in a predetermined shape and has a guide hole or a projection hole and a coupling hole in a predetermined length in a length direction on one side thereof; The writing core is inserted into the outer cylinder and the tip is installed at one end of the writing is made, A stopper assembled to one end of the outer cylinder; A cap assembled to the outer cylinder on the opposite side of the cap, An elastic member installed between the cap and the writing core to apply a force to the writing core in a direction opposite to the cap; A pressing member inserted into the outer cylinder so as to be movable in the longitudinal direction from the opposite side of the elastic member; It is installed between the pressing member and the writing lead, and if the pressing member is moved forward toward the cap for the first time, it moves forward to maintain the writing state in which the tip end of the writing lead is exposed to the outside of the cap, and advances the pressing member again for the second time. The knock member is moved backwards by the elastic force of the elastic member to operate in a state in which the tip of the writing core is completely concealed into the cap and the eccentric shaft is installed; And a safety member installed in the guide hole of the outer cylinder and coupled to the eccentric shaft so as to be located in the guide hole of the outer cylinder in close contact with the outer cylinder or in close contact with the outer cylinder and away from the outer cylinder in the released state. Safe knock writing instruments. According to claim 7, The inner surface of the outer cylinder is formed alternately with one or more guide grooves and guide projections along the circumference, The lower side of the guide projection is located on the opposite side of the guide hole is formed in a vertical plane along the longitudinal direction and the other side is a projection formed in the inclined plane spirally inclined toward the clip toward the center direction Forming, The outer circumferential surface of the pressing member is formed to protrude to the lower end at predetermined intervals along the circumference and is inserted into the guide groove of the outer cylinder so as to form one or more moving projections at a height not caught by the rotating projection. , The lower end surface of the pressing member forms a plurality of teeth, The knock member has an insertion portion inserted into the pressing member, and is formed in connection with the insertion portion, and the upper surface is formed with a tooth engaging the teeth of the pressing member along the circumference and the eccentric shaft is installed. On the outer circumferential surface of the knock portion is formed with a knock projection to move along the rotating projection, the eccentric shaft is installed eccentrically opposite to the knock projection at the lower side of the knock projection, and is installed below the eccentric shaft and the writing core A safety knock writing instrument consisting of a contact portion facing the upper surface.