KR200201138Y1 - Writing tool having lead cartridge prevented vibration - Google Patents

Abstract

The present invention relates to a writing instrument equipped with a dustproof core. This is because the core is separated from the outer cylinder and built into the dust-proof pen core, which can protect the core from shaking or impact.Integrate small parts to prevent the loss of the components when replacing the core, and the writing instruments due to the integration and simplification of the components In order to facilitate the manufacture of the manufacturing cost can be much cheaper, the upper end of the forward screw groove 46 formed by the inner peripheral portion of the discharge port 48 of the front end cap 40 is fastened to the lower end of the fitting groove ( 45 is formed, the anti-vibration lead core 10 is formed in the radial groove continuous radially formed on the outer circumferential surface of the groove 14 and the anti-vibration layer 12 is fitted into the fitting groove 45, the support groove 35 of the pen core 30 is fitted. ) Is made to include the inner cylinder spaced apart from the outer cylinder (20). As a result, the pen core of the writing instrument is remarkably protected from the impact to prevent frequent damage of the pen core, and when the dustproof core is processed into a fluorescent material of various colors, the product quality of the writing instrument is remarkably improved.

Description

Writing instrument with a dustproof lead

The present invention relates to a writing instrument equipped with a dust-proof pen core, and in particular, since the pen implements the pen tip on the dust-proof pen core dissipating the external impact, it is possible to protect the core from the shock frequently generated when using the writing instrument, and the appearance is beautiful. It relates to a writing instrument equipped with a dust-proof pencil lead to improve the productability.

In general, various types of writing instruments that are compatible with the functions are commercially available as the functional writing and the durability of the writing instruments are improved. Among these writing instruments, the writing instruments of Korean Utility Model Registration No. 077871 by the present applicant are disclosed. .

As shown in FIG. 1, the conventional writing instrument includes an outer cylinder 100 in which a support protrusion 102 protrudes on an inner surface thereof, a pen core 300 in which a support groove 302 is formed, and a locking protrusion 406. Consists of the leading end cap 400, the outlet insertion hole 405 formed on the upper end of the tip cap 400, the outlet 700 having a screw hole 708 in the rectangular insertion hole 405, etc. do.

Writing instrument configured as described above, the front end cap 400 is coupled to the lower portion of the outer cylinder 100 by a locking projection 406 is enabled to rotate.

The support protrusion 102 of the outer cylinder 100 is supported by the support groove 302 of the pen core 300 is prevented by the rotation of the pen core 300 due to the screw hole 708 in the square insertion hole 405 When the tip cap 400 is rotated, the outer circumference of the lead core 300 is threaded by the screw hole 708, which is sent down to the tip cap 400, that is, the outlet 700 so that the writing instrument can be used. will be.

Writing instruments acting as described above should first fix the pen core 300 inside the outer cylinder 100, so that the support protrusion 102 is formed on the inner surface of the outer cylinder 100, and the lower portion of the pen core 300 is the outlet 700. Since it is supported by the screw hole 708 of the writing instrument will not be cut even if the pen core 300.

On the other hand, the writing instrument is provided with a conical cutting groove 112 in which the abrasive 111 is inserted into the upper lid 110 can be used while trimming the blunt core 300.

The writing instrument was able to solve the complexity of the conventional wood pencil sharpening or the colored pencil delivery structure only by replacing the nib 300, but the nib 300 is the outer cylinder due to the structure supported by the nib 300 Direct contact with, because it was installed to protect the core (300) from shaking, but when the external cylinder is impacted due to the fall of the core (300) was a problem that easily broken, the main user of the writing instrument If the tip cap 400 is dismantled in the case of replacing the core 300, the withdrawal port 700, which is a very small part, is easily lost, and the support protrusion 102 and other protrusions protruding inside the outer cylinder 100 are easily lost. There was also a difficult problem in machining the parts.

The present invention has been devised in view of the above problems, and since the core is spaced from the outer cylinder and built into the core having a dustproof property, the core can be protected from shaking or impact. It is an object of the present invention to provide a writing instrument having a dustproof lead core which can be prevented from being lost and the manufacturing of the writing instrument becomes easy due to the integration and simplification of parts, and thus the manufacturing cost can be much cheaper.

The present invention for achieving the above object, in the writing instrument which is sent to the outlet formed through the inside of the tip cap is installed in the upper end of the outer cap is rotatably fastened to the lower end, in the outlet of the tip cap The upper end of the forward screw groove formed by the main part is formed with a fitting groove, the groove is fitted in the fitting groove and the dustproof core is formed in a radially continuous from the outer circumferential surface and the dustproof layer is built in the inner peripheral space is installed It is achieved by providing a writing instrument equipped with a dust-proof pencil lead comprising a.

1 is an exploded perspective view of a conventional writing instrument,

2 is an exploded perspective view of the writing instrument according to the present invention,

3 is a sectional view of main parts of the present invention,

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

4B is a cross-sectional view taken along the line B-B of FIG. 3;

5 is an exploded perspective view showing a part of an embodiment of the present invention,

Figure 6 is a cross-sectional view of the use state according to an embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

10: dustproof core 12: dustproof layer

14: square groove 20: outer cylinder

30: core 40: tip cap

44: fastening portion 45: fitting groove

46: forward thread groove 48: outlet

50: lid 60: pen die

Hereinafter, the present invention will be described in detail based on the accompanying drawings.

The present invention, as shown in Figure 2, the outer cylinder 20, the cap 50 is installed on the upper end of the outer cylinder 20, the tip cap 40 is coupled to the lower end of the outer cylinder 20, the outer cylinder ( 20 is composed of a dust-proof lead core insisted in (20).

The anti-vibration core 10 is made of a soft material having a curved circular cross-section, and each groove 14 and the anti-vibration layer 12 into which the support groove 35 of the pen core 30 is fitted are continuously formed radially on the outer circumferential surface thereof. Is fitted to the inner side of the tip cap 40, which is shown in Figure 3,

Inside the tip cap 40, a discharge port 48 through which the pen core 30 is discharged is formed therethrough, and a forward screw groove 46 is formed at an inner circumference of the discharge port 48, and the forward screw groove is formed. At the upper end of the discharge port 48, which has been processed 46, since the fitting groove 45 having the same cross-sectional shape as the dustproof core lead 10 is formed, the dustproof core lead 10 is fixed.

The maximum dimension of the fitting groove 45 is preferably processed smaller than the inner diameter of the outer cylinder 20 so that the dustproof core 10 is spaced apart from the inner surface of the outer cylinder 20.

In the state where the anti-vibration core 10 is fitted to the tip cap 40 as described above, the engaging projection 42 rounded to the inner circumferential surface of the fastening portion 44 of the tip cap 40 is the fastening portion 44 'of the outer cylinder 20. Since the end cap 40 is fastened to the outer cylinder 20 so as to be fitted into the engaging groove 42 'formed on the outer circumferential surface, the dustproof core 10 is spaced apart from the outer cylinder 20.

And, the upper end of the outer cylinder 20 is the same configuration as the conventional writing instruments, this configuration can maintain the conventional convenience.

Next will be described the operation of the present invention made as described above.

The writing instrument of the present invention is to use the pen tip 30, the support groove 35 is processed on the outer circumferential surface to the inside of the anti-vibration pen lead 10.

When the pen core 30 is inserted into the anti-vibration core 10, the support groove 35 of the pen core 30 is pushed so as to fit into the respective grooves 14 of the anti-vibration core 10, the pen core 30 is the anti-vibration core 10 Do not talk about it.

At this time, since the pen core 30 does not completely enter the inside of the anti-vibration core 10, the pen core 30 is partially projected to the outside of the anti-vibration core 10.

In addition, the pen core 30 is inserted into the fitting groove 45 formed inside the fastening portion 44 of the tip cap 40 in which the pen core 30 is installed, and at the same time, partially protrudes from the lower portion of the dust pen core 10. When the pen core 30 is rotated and pushed upward of the forward screw groove 46 of the tip cap 40, the pen core 30 is formed with a screw thread at the outer circumference by the forward screw groove 46 and at the same time, the forward screw groove 46 The dust-proof lead 10 is fixed to the tip cap 40 while being inserted inward.

As shown in FIGS. 4A and 4B of the dust cap core 10 having the pen tip 30 embedded in the tip cap 40 as described above, the tip cap 40 is attached to the lower end of the outer cylinder 20. When fitted, the locking projection 42 annular to the inner circumferential surface of the fastening portion 44 of the tip cap 40 is fitted into the locking groove 42 'formed on the outer circumferential surface of the fastening portion 44' of the outer cylinder 20 so that the leading cap ( 40 is fastened rotatably from the outer cylinder 20.

When the user rotates the tip cap 40 in the state in which the pen core 30 is installed in the outer cylinder 20 as described above, the pen core 30 partially inserted into the forward screw groove 46 of the tip cap 40 is dust-proof. Since the rotation force is received in a state in which the rotation is not performed by (10), the pen core 30 is threaded by the forward screw groove 46, and the pen core 30 is sent out to the outlet 48.

As described above, if the user determines that the length of the pen core 30 that is gradually sent out through the outlet 48 is stopped, the end cap 40 stops rotating so that the writing stop can be used.

Then, after using the writing instrument, if the tip cap 40 is rotated in the opposite direction to the outgoing in order to protect the pen core 30 protruding into the outlet 48 of the tip cap 40, the pen core 30 is again sent. It is drawn into the outlet 48 to protect the core 30.

In addition, when the writing instrument is impacted or dropped at a certain height during use as described above, the pen core 30 is inserted into the anti-vibration pen core 10 and is spaced apart from the outer cylinder 20 so that the impact applied to the outer cylinder 20 is reduced. The core 30 is blocked in the first place even when the shock-proof core 10 is shaken in the inside of the outer cylinder 20 so that the impact of the outer cylinder 20 is applied to the dust-proof core 10. Since the impact amount is minute and the impact applied to the dustproof core 10 is mostly dissipated by the dustproof layer 12, the core 30 is reliably protected from the impact. This prevents the loss of parts because the anti-vibration lead 10 is applied to the present invention, thereby preventing damage of the pen core 30 which is frequently generated during use of the writing instrument, and excluding the assembly of the minute components formed separately in the outer cylinder and the tip cap. will be.

In addition, since the tip cap 40 of a predetermined length is fastened to the bottom outer circumferential surface of the outer cylinder 20, the user can easily rotate the tip cap 40 for the delivery of the pen core 30.

In addition, when the outer cylinder 20 and the anti-vibration pen lead 10 are formed of a transparent material for the merchandise of the present invention, the degree of use of the pen lead 30 can be easily determined from the outside, and in particular, the anti-vibration pen lead 10 ) Is formed of a fluorescent transparent material, and the writing instruments are easy to identify at night and at the same time, if the fluorescent colors are colorfully formed, the writing instruments have luminescence, thereby improving the productability.

In addition, the pen core 30 used by the present invention is the support groove 35 is processed on the outer peripheral portion, which is the pen core 30 is fixed to the anti-vibration core lead 10, the pen core 30 at the time of rotation of the tip cap 40 In order to prevent the interlocking of the support groove 35 of the core 30 can be formed from the embodiment of the present invention shown in FIG.

This is to install the pen core die 60 to the inside of the lid 50 coupled to the upper end of the writing instrument outer cylinder 20, by forming a fixing groove 62 on the inner peripheral surface of the outer cylinder 20, the upper side of the outer cylinder 20 It is possible to lie in, the inside of the pen core die (60) is formed in the same shape as the cross-section of the anti-vibration core 10, and each groove edge 65 is formed in the position of each groove 14 of the anti-vibration core (10). Since the angular groove blade 65 is made of hard plastic, etc., the chamfer die 60 is sharply processed along the shape of the angular groove 65, so that a general chamfer 30 'having no support groove 35 formed on the outer circumferential surface thereof is formed. The support groove 35 is naturally formed while passing through the angular groove 14 blade.

Therefore, when the pen tip die 60 is installed as described above, the tip cap 40 rotated at the lower end of the outer cylinder 20 can be installed without having to separate the outer cap 20 from the outer cylinder 20. 6, when the lid 50 is removed from the outer cylinder 20 and the pen core 30 ′ is pushed into the pen core die 60, the pen core 30 ′ has a support groove ( Since the 35 is naturally processed and is installed as a dustproof core 10 in communication with the core 60, the replacement of the core 30 'is easy and the support core 35 is formed without having to produce the core 30 separately. The writing instrument of the invention can be used conveniently.

For reference, the lid 50 of FIG. 5 is the same as the conventional configuration, and maintains the conventional convenience, reference numeral 58 is an eraser, and reference numeral 52 is an abrasive material capable of sharpening the lead.

As such, the present invention, since the pen core 30 is built into the anti-vibration pen core 10, and the writing instrument is used, the pen core 30 is fixed in the line contact state with each groove 14 of the anti-vibration pen core 10, so that the outer cylinder 20 When the impact is applied to the pen core 30, the impact amount of the pen core 30 is remarkably lowered, and the dust-proof layer 12 of the anti-vibration core 10 dissipates the external direct impact, thereby further enhancing the protection of the pen core 30 and reducing the number of parts. The production cost of writing instruments can be reduced by simplification, and the outer cylinder 20 is formed of a transparent material, and the dustproof lead core 10 is processed with a fluorescent material, so the position identification becomes remarkable when using the writing instrument at night, Due to the anti-vibration lead 10 will be greatly improved productability.

The writing instrument equipped with the present invention anti-vibration pen tip prevents damage of the pen lead by remarkably protecting the pen core from impact and dropping of the writing instrument which frequently occurs when the writing instrument is used, and prevents damage of the pen tip, while processing the outer cylinder of the writing instrument with a transparent material. Forming with a fluorescent material of a variety of colors is an effect that significantly improves the marketability of writing instruments.

Claims (3)

In the writing instrument in which the lid 50 is installed at the upper end of the outer cylinder 20 and the pen core 30 is sent out to the outlet 48 formed through the inner side of the tip cap 40 rotatably fastened to the lower end. A fitting groove 45 is formed at an upper end of the forward screw groove 46 formed as the inner peripheral portion of the discharging opening 48 of the tip cap 40, and is fitted into the fitting groove 45 to support the fill core 30. The anti-vibration pen cores of the grooves 35 to which the grooves 14 and the anti-vibration layer 12 are radially continuous on the outer circumferential surface of the grooves 35 are formed and spaced apart from the outer cylinder 20. Writing instruments equipped with. According to claim 1, wherein the outer cylinder 20 is formed of a transparent material, the anti-vibration pencil lead 10 is a writing instrument equipped with a dust-proof pencil lead, characterized in that formed of a fluorescent material. The upper inner surface of the outer cylinder 20 is formed with a fixing groove 62, and fitted in the fixing groove 62, the inner end surface is formed in communication with the same shape as the anti-vibration core 10, the circular shape Writing instrument with a dust-proof pencil core characterized in that the pen core die (60) is formed with an additional groove (65) for processing the support groove 35 in the outer peripheral portion of the pencil core 30 of the cross-section.