KR200460005Y1 - The sharp pencil where the Sharp lead drawing is easy - Google Patents

The sharp pencil where the Sharp lead drawing is easy Download PDF

Info

Publication number
KR200460005Y1
KR200460005Y1 KR2020110005534U KR20110005534U KR200460005Y1 KR 200460005 Y1 KR200460005 Y1 KR 200460005Y1 KR 2020110005534 U KR2020110005534 U KR 2020110005534U KR 20110005534 U KR20110005534 U KR 20110005534U KR 200460005 Y1 KR200460005 Y1 KR 200460005Y1
Authority
KR
South Korea
Prior art keywords
sharp
pipe
shim
chuck
coupled
Prior art date
Application number
KR2020110005534U
Other languages
Korean (ko)
Inventor
양승렬
Original Assignee
양승렬
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 양승렬 filed Critical 양승렬
Priority to KR2020110005534U priority Critical patent/KR200460005Y1/en
Application granted granted Critical
Publication of KR200460005Y1 publication Critical patent/KR200460005Y1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/006—Pencil-barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/027—Writing-core feeding mechanisms with sliding tubelike writing-core guide
    • B43K21/033—Writing-core feeding mechanisms with sliding tubelike writing-core guide with automatic feed by pressure during use of pencil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/04—Writing-core feeding mechanisms with the writing-cores brought into position by gravity
    • B43K21/045—Writing-core feeding mechanisms with the writing-cores brought into position by gravity with writing-cores automatically replaced from magazines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/16—Writing-core feeding mechanisms with stepwise feed of writing-cores
    • B43K21/20—Writing-core feeding mechanisms with stepwise feed of writing-cores with writing-cores automatically replaced from magazines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/22—Writing-cores gripping means, e.g. chucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
    • B43K8/028—Movable closure or gate

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

The present invention forms an antistatic protrusion for sharp contact of the sharp cores around the inner wall of the sharp shim pipe, where the sharp shim is stored. It is related to a mechanical pencil that can be easily drawn out of the sharp shim.
To this end, according to the present invention, the sharp shim L received in the sharp shim pipe 30 is drawn out through the lower portion of the cap 80 according to the pressing of the knob 50 coupled to the upper portion of the writing tube 20. In this case, the sharp shim L is in contact with the sharp shim pipe 30 around the inner wall surface of the sharp shim pipe 30 so that the sharp shim L, which is accommodated even when static electricity is generated, may be easily separated from the sharp shim pipe 30. The prevention protrusion 31 is formed, and the support tube 60 is coupled to the inside of the sharp seam pipe 30 by a predetermined depth in one end of the sharp seam pipe 30 so that the sharp seam L is always accurately drawn out to a constant length. It characterized in that the locking jaw 32 is formed to be supported by the support tube 60.

Description

Sharp pencil where the Sharp lead drawing is easy}

The present invention relates to a mechanical pencil that can be easily drawn out of the sharp seam, and more specifically, the sharp seam in the sharp seam pipe is formed by forming an anti-static protrusion so that the sharp seam can be in point contact around the inner wall surface of the sharp seam pipe in which the sharp seam is stored. The present invention relates to a mechanical pencil that can be easily pulled out of the sharp shim that does not stick to the inner wall of the sharp shim pipe due to static electricity, thereby improving convenience of use.

Generally, the pencil is configured so that the sharp shim comes out through the lower part of the cap when the knob is coupled to the upper part of the writing tube. The pencil does not need to be sharpened like a pencil. Is one of the widely used writing instruments.

In this case, if the knob fixed to the upper part of the writing tube is briefly pressed, the sharp shim will protrude through the lower part of the cap, and if the key is pressed and released, the sharp shim will automatically be inserted into the inside of the cap. This has been proposed.

However, the above-mentioned mechanical pencil sharpening of the sharp seam has a structure for automatically sharpening the sharp seam to the structure of the sharp pencil, which is composed of a conventional complex configuration, and the overall configuration is very complicated, which makes the assembly work difficult and increases the manufacturing cost. Closure occurred.

In addition, since a ring, which is a kind of part to automatically sharpen the sharp shim, is forcibly inserted into the inside of the cap, not only a closed part such as a failure rate increases during assembly, but also a failure occurs once the parts are joined. It was almost impossible to repair.

In addition, since the metal tube for accommodating the lower chuck of the sleeve containing the sharp shim is directly screwed to the metal cap and the synthetic resin writing tube is fixed by the screwed metal tube and the metal cap, not only the total number of components is increased. Most of the components are made of metal, there was a problem that is the main reason for increasing the price of the pencil.

In addition, according to the related art pencil 100 shown in FIGS. 1 to 3, the sharp core is accommodated in the tubular sleeve 120 inserted into the writing tube 110, and the spring 130 is accommodated therein. And a chuck 160 coupled to the cap 170 by being coupled to the lower support tube 150 of the sleeve 120 by pressing the knob 140 coupled to the upper portion of the sleeve 120. The sharp core penetrating the inside of the chuck 160 while penetrating or being retracted by 180 is configured to come out through the lower cap 170 of the writing tube 110.

As described above, the conventional mechanical pencil 100 is manufactured by being connected to the lower support pipe 150 made of a metal material so as to connect the chuck 160 to the end of the sleeve 120, thereby reducing workability due to a large number of working steps. There is a problem that the cost of manufacturing cost increases due to excessive mold and material costs.

In addition, in the related art, a coupler 180 coupled to the outside of the chuck 160 is coupled to the chuck 160 so that the chuck 160 coupled to the lower support tube 150 can be opened or retracted. The chuck 160 has a problem in that the work process is increased because the end of the coupler 180 is retracted inward by using a separate device so that workability and work efficiency are reduced.

In addition, the mechanical pencil 100 according to the related art forms the tubular sleeve 120 with a synthetic resin material to reduce the manufacturing cost, so that the static electricity is generated in the interior of the sleeve 120 severely in winter, the sleeve 120 The outer entire surface of the sharp shim that is stored inside is in contact with the inner wall surface of the sleeve 120 so that the sharp shim is not easily separated from the sleeve 120 so that the sharp shim cannot be drawn out smoothly even when the knob 140 is operated. There was a problem.

Therefore, in the related art, in order to prevent the static electricity of the sleeve 120 when manufacturing the mechanical pencil 100, the process of soaking the sleeve 120 in an antistatic chemical agent and then drying the product to manufacture a product such as a labor difficulty and a drug purchase cost There was a problem of excessive cost.

Accordingly, the present invention has been made in order to solve the above problems, the purpose of the first, by forming an antistatic protrusion around the inner wall surface of the sharp shim pipe, the sharp shim accommodated in the sharp shim pipe is in contact with the antistatic protrusion as a point Even if static electricity is generated in the sharp seam pipe, the sharp seam does not stick to the inner wall of the sharp seam pipe, so that the sharp seam can be smoothly drawn out, thereby maximizing convenience of use.

Second, since the anti-static protrusions are formed on the inner wall of the sharp core pipe, there is no need to use a separate chemical agent for preventing static electricity when manufacturing the sharp core pipe, thereby minimizing the convenience of work and manufacturing cost.

Third, by allowing the support tube and the chuck coupled to the sharp seam pipe to be coupled to a certain depth, the sharp seam is always smoothly drawn out to a certain length to maximize the productability.

Fourth, by forming a support protrusion to support the chuck in the interior of the coupler to which the chuck is coupled to produce a coupler with a minimum of work, withdrawal of sharp shim to maximize the convenience and work efficiency It is to provide an easy mechanical pencil.

The present invention for achieving the above object is in the mechanical pencil to be drawn out through the lower portion of the sharp seam pipe in the sharp seam pipe by pressing the knob coupled to the upper portion of the writing tube, around the inner wall surface of the sharp seam pipe An electrostatic prevention protrusion is formed so that the sharp shim can be easily separated from the sharp shim pipe even if the sharp shim is in point contact with the sharp shim pipe, and the sharp shim is easily separated from the sharp shim pipe. The present invention provides a mechanical pencil that can be easily drawn out of a sharp shim, characterized in that a locking jaw is formed to hold a support tube so that it can always be accurately drawn out to a certain length.

As such, the present invention forms an antistatic protrusion so that the outer surface of the sharp core can be in contact with the point around the inner wall of the sharp core pipe in which the sharp core is accommodated, so that even if static electricity is generated inside the sharp core pipe, the sharp core is formed on the inner wall of the sharp core pipe. It is easy to use and the sharp shim is drawn out to the cap smoothly without sticking.

In addition, the present invention has a locking jaw is formed so that the end of the support tube can be caught in the sharp shim pipe to be coupled to a certain depth, the sharp shim is always drawn out to a certain length through the chuck and accurate operation is made It is effective to maximize the performance and operability.

1 is a perspective view showing a mechanical pencil according to the prior art.
Figure 2 is an exploded perspective view showing a sharp core drawing device of a mechanical pencil according to the prior art.
3 is an exemplary cutaway view of a sharp core drawing device according to the related art.
Figure 4 is an exploded perspective view showing a mechanical pencil according to the present invention.
5 is a perspective view showing a drawing device of a mechanical pencil according to the present invention.
6 is an exemplary cross-sectional view of the sharp shim pipe according to the present invention.
Figure 7 is a partial cutaway view showing the internal configuration of the mechanical pencil according to the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is an exploded perspective view showing a mechanical pencil according to the present invention, Figure 5 is a perspective view showing a drawing device of the mechanical pencil according to the present invention, Figure 6 shows an example of a cut surface of the mechanical sharp pipe according to the present invention , Figure 7 shows a partial cutaway view of the mechanical pencil according to the present invention.

As shown in Figures 4 to 7, the present invention is supported by a spring 40, the tubular sharp pipe 30 is inserted into the writing tube 20, coupled to the upper portion of the sharp pipe (30) When the knob 50 is pressed, the chuck 70 coupled to the support tube 60 is penetrated through the inside of the chuck 70 while being squeezed out or retracted by the coupling hole 90 coupled with the cap 80. In the mechanical pencil 10 is configured such that the sharp shim (L) comes out through the cap 80 of the writing tube 20,

Sharp shim L around the inner wall surface of the sharp shim pipe 30 is in point contact with the inner wall surface of the sharp shim pipe 30 so that the sharp shim L may be smoothly drawn out to the cap 80 while passing through the chuck 70. It characterized in that the antistatic projections 31 are formed to be.

The antistatic protrusion 31 is larger than the length of the sharp shim L so that the outer surface of the sharp shim L accommodated inside the sharp shim pipe 30 can be brought into contact with a dot without being in close contact with the inner wall surface of the sharp shim pipe 30. At least one is formed at short intervals.

In addition, the antistatic protrusion 31 is preferably formed by placing a sharp toward the lower side as the sharp shim (L) received by the sharp shim pipe 30 falls below the sharp shim pipe (30).

The support pipe 60 is coupled to the inside of the sharp seam pipe 30 to a predetermined length so that the coupling position of the chuck 70 coupled to the support pipe 60 is kept constant so that the chuck 70 is operated in one operation. Through the sharp shim (L) is always drawn by a certain length so that the locking jaw 32 is formed.

One end of the sharp shim pipe 30 is coupled to the support tube 60 so that the chuck 70 is coupled.

At this time, the support tube 60 may be formed separately from the sharp seam pipe 30 or may be integrally formed at the end of the sharp seam pipe 30.

Coupling protrusions 71 are formed on the outer surface of the chuck 70 so that the chuck 70 coupled to the support tube 60 can be firmly and easily coupled to the support tube 60 by one coupling.

At least one support protrusion 91 is formed below the inner wall surface of the coupler 90 so that the chuck 70 coupled to the support tube 60 can be firmly supported.

In addition, the support protrusion 91 is preferably formed of a round so that the chuck 70 can be smoothly operated without being caught by the coupler 90.

Looking at the operating state of the mechanical pencil 1 according to the present invention made of a configuration as described above are as follows.

When the knob 50 coupled to the sharp seam pipe 30 is removed from the sharp seam pipe 30, the sharp seam L is received into the sharp seam pipe 30, and the knob 50 is pressed to engage the cap 80. The chuck 70 is opened to the outside by the coupler 90 and the sharp shim L penetrating the inside of the chuck 70 exits through the cap 80.

At this time, when the sharp shim L is accommodated in the sharp shim pipe 30, the antistatic protrusion 31 is formed on the inner wall surface of the sharp shim pipe 30, so that the entire outer surface of the sharp shim L is formed of the sharp shim pipe 30. They do not stick to the wall and are in contact with the points.

Accordingly, even if static electricity is generated in the sharp seam pipe 30, the contact area of the sharp seam L accommodated in the sharp seam pipe 30 is minimized, and the movement of the sharp seam L within the sharp seam pipe 30 is freely made. Sharp core (L) is drawn out smoothly through 80).

Therefore, regardless of the static electricity generated in the sharp seam pipe 30, the sharp seam L is easily separated from the inner wall surface of the sharp seam pipe 30 and is smoothly drawn out through the cap 80 to maximize convenience for the user. Will be.

In addition, the mechanical pencil 1 according to the present invention is supported by the sharp shim pipe as in the prior art because the locking jaw 32 is formed in the sharp shim pipe 30 so that the support tube 60 can be stopped while stopped at a certain depth. When assembling the pipe, the length of the support tube is coupled to each other by an external force such as an operator, and the support tube 60 is always caught by the locking jaw 32 regardless of the external force by the locking jaw 32. Combined to a certain length.

In this way, as the support tube 60 is always coupled to a constant length into the sharp seam pipe 30, the engagement position of the chuck 70 is always kept constant so that the chuck 70 is pressed once every time the knob 50 is pressed. ), The sharp seam (L) is always withdrawn constantly and accurately to maximize the performance of the product.

In addition, when the chuck 70 is assembled to the support tube 60, the chuck 70 is connected to the support tube 60 by one coupling by the coupling protrusion 71 formed on the outer surface of the chuck 7. It is easily and firmly combined.

In addition, by forming a rounded support protrusion 91 to support the chuck 70 on the inner wall surface of the coupler 90 in a single operation during the molding of the coupler 90 is manufactured as in the prior art It is possible to manufacture the coupler 90 in a single working process without the need to bend the circumference of the end of the coupler with a separate equipment in the state that the coupler is fitted to the chuck can be convenient as well as minimize the working time.

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

10: mechanical pencil 20: writing tube
30: sharp sim pipe 31: antistatic protrusion
32: engaging jaw 40: spring
50 knob 60 support tube
70: Chuck 71: engaging protrusion
80: cap 90: coupler
91: support protrusion L: sharp seam

Claims (6)

The sharp shim pipe 30 inserted into the writing tube 20 is supported by the spring 40 while being inserted into the writing tube 20 and presses the knob 50 coupled to the upper portion of the sharp shim pipe 30 to the support tube 60. The sharp shim (L) penetrating the inside of the chuck (70) while the chuck (70) to be coupled is opened or retracted outward by the coupling hole (90) coupled to the cap (80) is the cap 80 of the writing tube (20) For a pencil configured to come out through),
Sharp shim (L) is in contact with the inner wall surface of the sharp shim pipe (30) around the inner wall surface of the sharp shim pipe (30) so that the sharp shim (L) can be smoothly withdrawn to the cap 80 while passing through the chuck (70) Sharp pencil is easy to take out the sharp shim, characterized in that the antistatic projection 31 is formed to be. The method of claim 1,
The antistatic protrusion 31 is formed at least one or more at intervals shorter than the length of the sharp core (L) so that the sharp core (L) is accommodated in the sharp core pipe (30) does not adhere to the inner wall surface of the sharp core pipe (30) The mechanical pencil which is easy to draw out the sharp core characterized by. The method of claim 1,
The support pipe 60 is coupled to the inside of the sharp seam pipe 30 to a predetermined length so that the coupling position of the chuck 70 coupled to the support pipe 60 is kept constant so that the chuck 70 is operated in one operation. Through the sharp shim (L) is always drawn with a certain length so that the locking jaw 32 is formed, it is easy to draw the pencil sharp pencil. The method of claim 1,
The outer surface of the chuck 70 is easy to withdraw the sharp shim, characterized in that the engaging projection 71 is formed so that the chuck 70 is coupled to the support tube 60 can be easily and firmly combined in one coupling. One pencil. The method of claim 1,
At least one support protrusion 91 is formed in the lower portion of the inner wall surface of the coupler 90 so as to firmly support the chuck 70 coupled to the support tube 60. Mechanical pencil. The method of claim 5, wherein
The support protrusion 91 is a mechanical pencil is easy to draw, characterized in that the chuck 70 is formed by rounding so that it can be operated smoothly without being caught by the coupler (90).
KR2020110005534U 2011-06-20 2011-06-20 The sharp pencil where the Sharp lead drawing is easy KR200460005Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020110005534U KR200460005Y1 (en) 2011-06-20 2011-06-20 The sharp pencil where the Sharp lead drawing is easy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020110005534U KR200460005Y1 (en) 2011-06-20 2011-06-20 The sharp pencil where the Sharp lead drawing is easy

Publications (1)

Publication Number Publication Date
KR200460005Y1 true KR200460005Y1 (en) 2012-04-26

Family

ID=46607951

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020110005534U KR200460005Y1 (en) 2011-06-20 2011-06-20 The sharp pencil where the Sharp lead drawing is easy

Country Status (1)

Country Link
KR (1) KR200460005Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200091182A (en) * 2019-01-22 2020-07-30 박정호 A Sharp Pencil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08283648A (en) * 1995-04-10 1996-10-29 Pilot Precision Co Ltd Pencil lead
JP2006089616A (en) 2004-09-24 2006-04-06 Pilot Precision Co Ltd Fired lead for pencil
JP2010105170A (en) 2008-10-28 2010-05-13 Mitsubishi Pencil Co Ltd Mechanical pencil
KR20100009105U (en) * 2009-03-09 2010-09-17 이소정 sharp pencil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08283648A (en) * 1995-04-10 1996-10-29 Pilot Precision Co Ltd Pencil lead
JP2006089616A (en) 2004-09-24 2006-04-06 Pilot Precision Co Ltd Fired lead for pencil
JP2010105170A (en) 2008-10-28 2010-05-13 Mitsubishi Pencil Co Ltd Mechanical pencil
KR20100009105U (en) * 2009-03-09 2010-09-17 이소정 sharp pencil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200091182A (en) * 2019-01-22 2020-07-30 박정호 A Sharp Pencil
KR102172264B1 (en) * 2019-01-22 2020-10-30 박정호 A Sharp Pencil

Similar Documents

Publication Publication Date Title
CN104393740B (en) Power supply adaptor
KR20090102643A (en) Rod article feeding-out mechanism
KR200460005Y1 (en) The sharp pencil where the Sharp lead drawing is easy
TWI477837B (en) Optical fiber connector
JP5452753B1 (en) Cartridge type cosmetic container
US20110227880A1 (en) Telescoping stylus for portable electronic device
KR850002099Y1 (en) Sharp pencil
TWM528755U (en) Syringe with safety sleeve
CN105059014B (en) A kind of pen
CN203588778U (en) Tube kit and electric tool containing tube kit
CN204363365U (en) A kind of stainless steel cabinet of foolproof installation
JP2018001684A (en) Mechanical pencil
CN203123218U (en) Needle-point-retractable disposable safety syringe
CN208812799U (en) A kind of pen being conveniently replaceable ink sac
KR101476322B1 (en) Tape Measure
US2822852A (en) Adapter for hose coupling attaching machine
US8394057B2 (en) Safety syringe
KR20110005333U (en) Mechanical pencil for sharp lead drawing apparatus
JP5936814B2 (en) Syringe needle cover
JP6345941B2 (en) Double writing instrument
CN204774207U (en) Pen
CN104216062B (en) Tinsel Antikink device
KR101687246B1 (en) Traction rope hiding apparatus of case for grease injector
KR102679677B1 (en) Eco-friendly colored pencil
KR20100138379A (en) Carpenter's inkline box

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee