A dry-proofing device-equipped core-dropping fluorescent pen

Abstract

The present invention relates to a kind of plummet core type fluorescent pen with dry preventing device, it is equipped with dry preventing device to prevent ink from being gasified by pen point and leak in front side of pen point extension, wherein, including: pen body;Lifting guide is arranged in the inside of pen body;Plate closure induction element is inserted to the inside lower part of lifting guide;Plunging operation member is inserted from the upper part of lifting guide;Plunging gear is inserted from the lower part of plunging operation member and is located in upper part, for the extension and retraction of plunging operation member;And the pen clip member is coupled to the upper part of pen body, according to the lifting of plunging operation member, lifting guide and the protruding end of sealing plate rotatably arranged in the lower part of lifting guide are stopped in the open protrusion formed in one side of pen body at predetermined interval, rotation is carried out, so that, open action is carried out clearly, and the sealing plate is tightly contacted by sealing tube body made of soft material such as rubber or silicone by being inserted into the inside of plate closure guide, so that, improve sealing effect.

Description

Technical Field

[0001] This invention relates to a tip-type highlighter with an anti-drying device, and more specifically, to a tip-type highlighter with an anti-drying device disposed at the lower part of the pen body to prevent ink leakage due to vaporization of the pen tip. Background Technology

[0002] Generally, writing instruments with ink filters can use oil-based or water-based inks.

[0003] This writing instrument has a special composition due to the properties of oil-based or water-based inks.

[0004] In particular, in writing instruments that use water-based inks, the rear of the pen body is formed into a sealed structure, and the nib is additionally capped to prevent exposure to air, thereby slowing down the vaporization of ink through the nib.

[0005] However, when the pen cap is lost, the pen nib cannot be prevented from being exposed to the air, thus the pen may be unusable for a short period of time.

[0006] Therefore, a dry pen was developed that seals the space where the pen tip is located when the pen tip retracts during the extension and retraction process.

[0007] These existing anti-drying pens are used with a ball-shaped or sliding anti-drying device.

[0008] However, in the case of the spherical type, although the sealing force of the space where the pen tip is located is improved, the structure is complex. Moreover, since the rotating shaft of the ball valve and the movable shaft that makes the ball valve rotate form a dual structure, the rotation action is not smooth. In addition, in the case of the sliding type, although the side wall of the pen body and the lower part where the pen tip is retracted are sealed along the guide groove, it is difficult to achieve strong adhesion due to the nature of the sliding motion. Therefore, there is a problem of reduced sealing performance.

[0009] Prior technical documents

[0010] Patent documents

[0011] Korean Patent Registration No. 10-1188919

[0012] Korean Patent Registration No. 10-1804319 Summary of the Invention

[0013] Therefore, the purpose of this invention is to provide a drop-core fluorescent pen with an anti-drying device, which solves the problems of uneven operation caused by the complex structure of spherical structures and the reduced sealing of sliding structures, and not only provides clear operation, but also improves sealing performance.

[0014] To achieve the purpose of this invention, the invention includes: a pen body; a lifting guide disposed inside the pen body; a plate closing guide inserted into the lower inner part of the lifting guide; a core-operating member inserted from the upper part of the lifting guide; a core-operating gear inserted from the lower part of the core-operating member and located at the upper part, allowing the core-operating member to extend and retract; and a pen clip member coupled to the upper part of the pen body.

[0015] Furthermore, the present invention provides a drop-core highlighter with an anti-drying device, comprising, in the writing instrument having the anti-drying device:

[0016] The pen body has an inwardly protruding open protrusion on one side of the lower part of its inner surface for opening the sealing tube. A descent limiting protrusion is formed on the inner surface opposite the open protrusion. The descent limiting protrusion is used to limit the descent of the lifting guide and is lower than the height of the open protrusion.

[0017] A lifting guide for guiding the lifting and lowering of the core control components, including the pen nib and ink filter; and

[0018] A sealing device is located at the lower part of the lifting guide, which opens and closes the lower part of the sealing tube containing the pen tip by adjusting the lifting guide's rotation angle by a predetermined angle.

[0019] The sealing device comprises:

[0020] The plate closing guide is guided to be inserted into the guide groove of the lifting guide;

[0021] The sealing tube body is inserted into the plate closure inducer and contacts the sealing plate; and

[0022] A sealing plate is rotatably connected to the lower side of the lifting guide.

[0023] Preferably, the sealing plate is configured to have a rotating shaft protrusion coupled to the coupling hole of the rotating shaft, and to have a protruding end with the upper surface of the rotating shaft protrusion formed as an inclined surface. The protruding end protrudes a predetermined length outward from the lifting guide and contacts the open protrusion of the pen body to perform an opening action.

[0024] Preferably, the plate closing guide is formed as a tube, with coupling protrusions on both sides of the upper end that are inserted into guide grooves of the lifting guide and protrude outwards. The lower end has the same tilt direction as the pen tip to prevent interference when the pen tip is extended, retracted or extended. A right-angle end is formed on the tilted upper side, which contacts the tilted surface of the protruding end of the sealing plate to close the rotation of the sealing plate. A coupling groove is formed at the upper end that is perpendicular to the coupling protrusions to couple the sealing tube to the accurate position.

[0025] Preferably, an open operating hole is formed on one side of the lower end of the lifting guide to prevent interference from the protruding end when the sealing tube rotates. Rotary shaft coupling holes for coupling the sealing plate are formed on both sides of the operating hole. The rotary shaft coupling holes are formed at an inwardly eccentric position of the tube thickness of the plate closing guide inserted into the interior to perform the closing action of the sealing tube. Attached Figure Description

[0026] Figure 1 This is an example diagram of the separated state according to an embodiment of the present invention.

[0027] Figure 2 This is a three-dimensional example diagram according to an embodiment of the present invention.

[0028] Figure 3 This is a three-dimensional example of the bottom surface according to an embodiment of the present invention.

[0029] Figure 4 and Figure 5 This is an example cross-sectional view of a pen body according to an embodiment of the present invention.

[0030] Figure 6 This is an example diagram showing the state of the core-falling operating member coupled to the lifting guide member according to an embodiment of the present invention.

[0031] Figure 7 This is a cross-sectional example diagram according to an embodiment of the present invention.

[0032] Figure 8 This is an enlarged cross-sectional example diagram illustrating the operation of the sealing plate according to an embodiment of the present invention.

[0033] Figure 9 This is an enlarged cross-sectional example of the opening process of the sealing plate according to an embodiment of the present invention.

[0034] Figure 10 This is an enlarged cross-sectional example of the closing process of the sealing plate according to an embodiment of the present invention.

[0035] In the picture:

[0036] 10: Pen body, 11: Telescopic hole, 12: Insertion guide, 12a: Anti-rotation groove, 13: Opening protrusion, 14: Lowering restriction protrusion, 15: Pen clip component, 15a: Dropper operation hole, 20: Lifting guide, 21: Guide groove, 22: Operation hole, 23: Rotation shaft coupling hole, 31: Plate closing guide, 31a: Coupling protrusion, 31b: Coupling groove, 31c: Right angle end, 32: Sealing tube body, 32a: Insertion protrusion, 32b: Closely attached tube part, 32c: Sealing ring, 33: Sealing plate, 33a: Protruding end, 33b: Rotation shaft protrusion, 40: Dropper operation component, 41: Upper movable gear, 42: Lower movable gear, 43: Lifting protrusion, 50: Dropper gear, 51: Telescopic gear. Detailed Implementation

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present invention.

[0038] The following is a detailed description with reference to the accompanying drawings.

[0039] The present invention includes: a pen body 10; a lifting guide 20 disposed inside the pen body 10 for guiding the lifting and lowering of a core-feeding operation member 40; a sealing device disposed at the lower part of the lifting guide 20 to prevent ink from being vaporized; a core-feeding operation member 40, the lower side of which is inserted into the lifting guide 20; and a core-feeding gear 50 inserted from the lower part of the core-feeding operation member 40 to perform the core-feeding operation.

[0040] The pen body 10 has a telescopic hole 11 at the bottom for the pen tip to extend and retract.

[0041] Insertion guides 12 are formed on the inner walls of both sides of the pen body 10 to guide the lifting guide 20 to be inserted into the correct position in the pen body 10. The lifting guide is coupled with a plate closing guide 31 supported by a spring and a core operating member 40.

[0042] The insertion guide 12 is formed as a curved surface that gradually narrows from top to bottom, and an anti-rotation groove 12a is formed at the bottom of the insertion guide 12 for the coupling protrusion 31a of the plate closing guide 31 to be inserted to prevent the lifting guide 20 from rotating.

[0043] An opening protrusion 13 is formed on the lower inner side of the pen body 10 to open the sealing plate 33.

[0044] A descent restriction protrusion 14 is formed on the opposite inner side of the open protrusion 13 to restrict the descent of the lifting guide 20.

[0045] The descent restriction protrusion 14 is formed to have a lower height than the open protrusion 13.

[0046] The upper part of the pen body 10 is provided with a pen clip member 15, which is attached to the upper part of the pen body 10 to prevent the core dropper 40 from disengaging.

[0047] The pen clip component 15 is attached to the upper part of the pen body 10 and forms a core operating hole 15a formed by the tube body, into which a core rod 40a is inserted.

[0048] A core rod 40a, coupled to a core operating member 40, is inserted from the bottom up into the core operating hole 15a.

[0049] The lifting guide 20 is inserted into the pen body 10 and located at the bottom.

[0050] The lifting guide 20 has guide grooves 21 cut out from the top for a predetermined length on both sides.

[0051] An open operating hole 22 is formed on one side of the lower end of the lifting guide 20, and a rotation shaft coupling hole 23 for coupling the sealing plate 33 is formed on both sides of the operating hole 22.

[0052] The rotating shaft coupling hole 23 is formed at an eccentric interval A in the inward direction from the center of the tube thickness of the plate closing guide 31 inserted into the interior.

[0053] The lower part of the lifting guide 20 is provided with a sealing device for sealing the lower part of the sealing tube 32 where the pen tip is located.

[0054] The sealing device includes: a plate closing guide 31, inserted into the lifting guide 20; a sealing tube 32, inserted into the interior of the plate closing guide 31 and in close contact with the upper surface 33c of the sealing plate 33; and a sealing plate 33, which is rotatably connected to the lower side of the lifting guide 20.

[0055] The plate closing guide 31 is formed as a tube, elastically supported by a spring, and located at the lower part of the lifting guide 20.

[0056] The plate closing guide 31 has coupling protrusions 31a formed on both sides of its upper end, which are inserted into the guide grooves 21 of the lifting guide 20 and protrude outward. The lower end is formed with an inclination angle in the same direction as the inclination angle of the tilted pen tip to prevent interference between the descending protruding pen tip and the sealing plate 33. A coupling groove 31b is formed at the upper end in the direction perpendicular to the coupling protrusions 31a for coupling the sealing tube 32 to the correct position.

[0057] The coupling protrusion 31a protrudes to the outside of the guide groove 21 of the lifting guide 20 and is inserted into the anti-rotation groove 12a of the pen body 10.

[0058] The inclined upper side of the plate closing guide 31 has a right-angle end 31c, which can contact the inclined surface of the protruding end 33a of the sealing plate 33.

[0059] The sealing tube 32 is inserted into the plate closing inducer 31 for coupling.

[0060] The sealing tube 32 has insertion protrusions 32a on both sides of its upper end that are inserted into the coupling groove 31b.

[0061] The sealing tube 32 protrudes further than the lower end of the plate closing inducer 31 and is in close contact with the upper surface 33c of the sealing plate 33.

[0062] The sealing tube 32 is made of rubber or silicone resin to improve its fit with the sealing plate 33.

[0063] The lower end of the sealing tube 32 forms a protruding, smaller-than-the-outer-diameter, close-fitting tube portion 32b, thereby improving the tightness of the fit with the sealing plate 33.

[0064] A sealing ring 32c is formed on the upper side of the sealing tube 32. The sealing ring 32c protrudes inward and fits tightly against the lower outer side of the dropper operating member that is connected to the pen tip.

[0065] The sealing plate 33 has an inclined protruding end 33a on one side of its upper part, and protruding rotating shaft protrusions 33b are formed on both sides of the protruding end 33a for coupling with the rotating shaft coupling hole 23 of the lifting guide 20.

[0066] The core operating member 40 is formed as a tube, with a coupled ink filter inserted from the upper side and a pen tip inserted from the lower part. Through this structure, ink can be supplied from the coupled ink filter inserted from the upper side.

[0067] A connecting rod 40a is inserted into the upper part of the connecting rod operating member 40 and connected to expose the upper side of the pen clip member 15.

[0068] The core-operating member 40 includes: an upper movable gear 41 that meshes with the core-operating member on its upper side and with the core-operating member 50 protruding to the inner surface of the core-operating member 50; and a lower movable gear 42 that meshes with the lower part of the core-operating member 50.

[0069] A lifting protrusion 43 is formed on the lower side of the core operating member 40, which is inserted into the guide groove 21 of the lifting guide member 20.

[0070] The core gear 50 has a telescopic gear 51 that protrudes at equal intervals on its inner surface and meshes with the upper movable gear 41 and the lower movable gear 42.

[0071] The core gear 50 is inserted from the lower side of the core operating member 40 and is combined such that the lower movable gear 42 is located at the lower part of the core gear 50 and the upper movable gear 41 is located at the upper part of the core gear 50.

[0072] The operation process of the present invention will be described below.

[0073] The present invention includes: a pen body 10; a lifting guide 20 disposed inside the pen body 10 for guiding the lifting and lowering of a core-feeding operation member 40; a sealing device disposed at the lower part of the lifting guide 20 for sealing the interior where the pen tip is located; a core-feeding operation member 40, the lower part of which is inserted into the lifting guide 20; and a core-feeding gear 50 inserted from the lower part of the core-feeding operation member 40 to perform the core-feeding operation. By pressing the core-feeding rod 40a at the upper part of the pen body 10, the sealing device is opened and closed, thereby allowing the pen tip to extend and retract from the telescopic hole 11 at the lower part of the pen body 10.

[0074] Furthermore, when the core rod 40a is pressed, the core operating member 40 descends, and the lifting guide member 20 descends by a predetermined interval through the core operating member 40. When the lifting guide member 20 descends, the open protrusion 13 protruding from the pen body 10 contacts the lower surface 33d of the protruding end 33a of the sealing plate 33 and rotates, thereby clearly opening the sealing plate 33.

[0075] Furthermore, the lifting guide 20, which descends at predetermined intervals, contacts the descent restriction protrusion 14, thereby ceasing further descent. Meanwhile, the core operating member 40, inserted into the lifting guide 20, continues to descend, causing the pen tip to protrude through the telescopic hole 11.

[0076] Furthermore, during the opening process, the protruding end 33a of the sealing plate 33 is located on the side of the opened operation hole 22 of the lifting guide 20, thereby preventing interference with the rotational opening operation of the sealing plate 33.

[0077] Furthermore, when the core rod 40a is pressed again, the core operating member 40 and the lifting guide member 20 rise, and when the pen tip of the core operating member 40 is located in the sealing tube 32, the inclined surface of the protruding end 33a of the lifting sealing plate 33 contacts the corner of the right angle end 31c of the plate closing guide member 31, and performs a closing rotation.

[0078] At this time, the rotating shaft protrusion 33b is coupled to the rotating shaft coupling hole 23 located at an inwardly eccentric interval A from the thickness center of the right-angle end 31c of the plate closing guide 31, so that the corner of the right-angle end 31c contacts the inclined surface of the protruding end 33a located outside the rotating shaft protrusion 33b, thereby performing the closing rotation action of the sealing plate 33.

[0079] In addition, after the inclined surface of the protruding end 33a is closed and rotated, the inclined surface contacts the surface of the right-angle end 31c. The upper surface of the sealing plate 33 protrudes from the sealing tube body 32, which is formed as an inclined surface from the lower end face, and contacts the tight-fitting tube part 32b with a smaller tube diameter. Thus, the tightness is improved by the thinner tube diameter.

[0080] The foregoing description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A drop-core highlighter with an anti-drying device, characterized in that, include: The pen body (10) has an inwardly protruding open protrusion (13) formed on one side of the lower part of the inner surface for opening the sealing plate (33). A descent limiting protrusion (14) is formed on the inner surface opposite to the open protrusion (13). The descent limiting protrusion is used to limit the descent of the lowering guide (20) and is lower than the height of the open protrusion (13). A lifting guide (20) for guiding the lifting of the nib and ink filter core operating element (40); and A sealing device is provided at the lower part of the lifting guide (20), which opens and closes the lower part of the sealing tube (32) where the pen tip is located according to the lifting and rotating of the lifting guide (20) by a predetermined angle. The sealing device comprises: The plate closing guide (31) is guided to be inserted into the guide groove (21) of the lifting guide (20); The sealing tube (32) is inserted into the plate closure inducer (31) and contacts the sealing plate (33); and The sealing plate (33) is rotatably connected to the lower side of the lifting guide (20).

2. The drop-core fluorescent pen with an anti-drying device according to claim 1, characterized in that, The sealing plate (33) is configured to have a rotating shaft protrusion (33b) coupled to the rotating shaft coupling hole (23), and to have a protruding end (33a) with the upper surface of the rotating shaft protrusion (33b) being an inclined surface. The protruding end (33a) protrudes a predetermined length outward from the lifting guide (20) and contacts the opening protrusion (13) of the pen body (10) to perform an opening action.

3. The drop-core fluorescent pen with an anti-drying device according to claim 1, characterized in that, The plate closing guide (31) is formed as a tube. On both sides of the upper end, there are guide grooves (21) that are inserted into the lifting guide (20) and protrude outward. The lower end has the same tilt direction as the pen tip to prevent interference when the pen tip is extended, retracted and extended. A right-angle end (31c) is formed on the tilted upper side. The right-angle end contacts the tilted surface of the protruding end (33a) of the sealing plate (33) so that the sealing plate (33) closes and rotates. A coupling groove (31b) is formed at the upper end that is perpendicular to the coupling protrusion (31a) for coupling the sealing tube (32) to the accurate position.

4. The drop-core fluorescent pen with an anti-drying device according to claim 1, characterized in that, An open operating hole (22) is formed on one side of the lower end of the lifting guide (20) to prevent interference from the protruding end (33a) when the sealing plate (33) rotates. Rotary shaft coupling holes (23) for coupling the sealing plate (33) are formed on both sides of the operating hole (22). The rotary shaft coupling holes (23) are formed at an inwardly eccentric position of the tube thickness of the plate closing guide (31) inserted into the interior, for closing the sealing plate (33).

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