KR20120084357A - Sharp pen - Google Patents

Abstract

PURPOSE: A sharp pencil capable of adjusting the thickness of a lead is provided to prevent the breakage of the sharp pencil lead when writing by freely adjusting the length of the sharp pencil lead. CONSTITUTION: A sharp pencil comprises the following: a chuck discharging a sharp pencil lead to the outside when pressing a pressurizing unit by moving forward; a tip-end cap(10) including a jamming protrusion operating as a stopper for stopping a sleeve; a case(20) including a protrusion(21) on the upper side, coupled to the tip-end cap; a sharp pencil lead adjusting unit(30) including a groove coupling with the protrusion on the case, with a cylindrical outer shape; a slider(40) including the sleeve for stopping the chuck after discharging the sharp pencil lead, and a screw unit(41) combining with a screw formed on the inside of the tip-end cap; and a lead case(50) for storing the sharp pencil lead inside the slider.

Description

Mechanical pencil {SHARP PEN}

When sharpness comes out, it is thinned and it does not break when writing sharpness by adjusting thickness.

Sharp shim does not break

Lighter material and should be covered with silicone to make it more tactile

Sharp should be lighter and more convenient. And feel better!

It's really comfortable and it doesn't break the sharpness

This pen can adjust the thickness of sharp when it comes out sharp!

The present invention relates to a sharp pencil, and more particularly, by forming a shim adjusting device on the upper case of the sharp shim to freely adjust the length of the sharp shim that comes out when pressing the pressure port to break the sharp shim during writing to interfere with writing It is related to the sharp pencil which prevented it.

In general, a pencil pencil is formed in the lower part of the casing by passing the narrowing part of the lower end of the inner tube as the inner pencil, which is supported by a spring, is elastically lifted each time the thin pencil core is placed in the inner tube and the pressing hole formed on the upper casing is pressed. It is pushed out slightly through the cap.

Therefore, as the pencil lead is worn out, simply press the pressure port, and the pencil lead is pushed out through the cap of the lower part of the casing, making it very convenient to use. When the pencil lead is completely worn out, the new pencil lead stored in the inner tube is lowered.

Bars are pushed out little by little, so it is very convenient to always put several pencils in the inner tube.

By the way, the conventional mechanical pencil, as shown in FIG. 4, since the length of the sharp core coming out through the tip cap 1 is set from the manufacturing stage, the mechanical pencil of the short setting has to press the pressure port 2 more than twice. Manipulation has been cumbersome, and the length of the mechanical pencil is too long because the length of the writing is broken problem occurs.

So, in general, when adjusting the length of the shim, press the pusher (2) two times or more to come out of the shim, and then push or pull the sharp shim as a hand other than the hand holding the sharp pencil while pressing the pusher and adjust the length of the shim. come.

Adjust the length of the seam as described above when you are troublesome and urgent to write

If you look at the contents to be written is a problem that can not be written.

The present invention has been devised in view of the above problems, the sharp pencil is formed in the upper part of the case of the sharp shim by writing to adjust the length of the sharp shim that comes out when pressing the pressure port The purpose is to provide a sharp pencil that prevents the break of seam sharpness and disturbs writing.

The present invention for achieving the above object is a sharp shim is sent out and the stop acts as a stopper so that the chuck and the sleeve to send the sharp shim to the outside while moving to a certain distance to stop when moving the pressurizing sphere inside Jaw shaping

A front end cap, a case which is fastened to the front end cap, and has a protrusion formed at an upper end thereof, and a protrusion formed at the case.

The groove is formed to correspond to and the outer shape is formed in a cylindrical shape, and the innermost sharp core adjusting device formed in a hexagonal shape,

It is fastened to the inside of the sharp shim adjusting device is formed in a hexagonal shape so that one side corresponds to the inner shape of the sharp shim adjusting device,

On the other end, if the threaded portion is formed to be fastened to the threaded portion formed inside the tip cap, the end of the sharp core

A slider having a sleeve having a sleeve which stops when the feeding chuck retracts after sending the sharp shim, and the slider

A core tube is formed to keep the sharp core inside, and the chuck to send the sharp core to the outside receives pressure and returns to its original position.

Sharp pencil characterized in that the spring is provided to provide a restoring force to return, and the line to which the sharp seam is sent

Sharp core adjuster and slider are integrally formed inside the case that is fastened to one side of the short cap,

Rotating the case allows the slider to move forward and backward along the threaded portion of the inside of the case so that the length of the sharp seam can be adjusted.

will be.

10: Tip cap 11: Hanging jaw
12: screw part
20: case 21: protrusion
30: shim adjustment device 31: groove
40: slider 41: screw portion
42: sleeve 50: core pain
60: Chuck 70: Spring
80: pressure port

Claims (1)

The sharp shim is sent out and the chuck 60 and the sleeve (4) for sending the sharp shim to the outside while advancing when the pressure inlet 80 is pressurized therein
2) the tip cap 10 is formed with a stopper jaw (11) serving as a stopper to stop after moving by a predetermined distance,
A case 20 fastened to the tip cap 10 and having a protrusion 21 formed at an upper end thereof;
The groove 31 is formed so as to correspond to the protrusion 21 formed in the case 20, the sharp core adjusting device formed in a hexagonal shape on the inside (
30) and,
It is fastened to the inside of the sharp shim adjusting device 30 and is formed in a hexagonal shape so that one side corresponds to the inner shape of the sharp shim adjusting device 30.
Another side is formed with a screw portion 41 to be fastened to the threaded portion 12 formed on the inside of the tip cap 10 and the end portion
The sleeve 42 is formed to stop when the chuck 60 for sending the sharp shim to the outside is retracted after sending the sharp shim is formed
Slider 40,
A core barrel 50 is formed to keep the sharp core inside the slider 40, and the chuck 60 for sending the sharp core to the outside.
And a spring 70 which provides a restoring force so that the sleeve 42 can be returned to its original position after being pressurized.
Sharp pencil to make.

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