KR20170044280A

KR20170044280A - Writing instrument having automatic sealing structure

Info

Publication number: KR20170044280A
Application number: KR1020150143763A
Authority: KR
Inventors: 윤 호 문
Original assignee: 주식회사 모리스
Priority date: 2015-10-15
Filing date: 2015-10-15
Publication date: 2017-04-25
Also published as: KR101774425B1

Abstract

According to the present invention, a protruding jaw serving as a stopper for preventing excessive rotation of the hinge shaft is formed on the hinge portion of the holder, thereby providing a writing instrument having an automatic sealing structure in which ink drying can be effectively prevented by completely sealing the nip The purpose of that is to do.
In order to achieve the above object, the present invention provides a kneading apparatus comprising a main body case having a nip hole formed at one end thereof, a knock portion coupled to the other end portion of the main body case and projecting and immobilizing the nip from the main body case by a pressing operation, A cartridge inserted into the body case in a state of being coupled to both ends of the body case with a spring, an O-ring supported by the spring and fixed to the inside of the body case and fixed to the body case by O- And a ball shutter rotatably coupled to the holder so as to protrude and seal the nip in accordance with the rotation of the holder, wherein the hinge axis of the ball shutter is formed into a fan shape And the hinge portion of the holder, in which the hinge shaft is rotatably positioned, is formed with a protruding jaw inside the hole, It is characterized in that.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a writing instrument having an automatic sealing structure,

The present invention relates to a writing instrument having an automatic sealing structure, and more particularly, to a writing instrument having an automatic sealing structure such that a nib emerging from a writing instrument is protruded only when a writing instrument is used and a nip is sealed inside the writing instrument when not in use. A highlighter, a roller pen, a board macap pen, a planar macap pen, a felt pen, a plastic pen, a marking pen, and the like.

In the first group, the ink or the air hole of the writing member is improved to make it difficult to dry the writing member, while in the second group, the writing member can be classified into two types, A drying prevention device is provided.

When a writing instrument of the first group is used as an example, a marking pen using so-called " non-drying ink " and a ball-point pen having a very small air hole at the rear end of the writing member, . Such a writing instrument of the first group is not provided with a drying preventing device and is not prevented from drying sufficiently, resulting in inconvenience in use when not used for a long time.

In addition, the second group is provided with an anti-drying device, that is, the cap is closed with the cap when it is not generally used, thereby preventing the ink from drying out. However, a writing instrument with a cap is inefficient to use, and the cap can easily be lost.

In order to solve the above-mentioned problems, the applicant of the present invention has disclosed a "protruding type writing instrument provided with anti-fogging device" as disclosed in Korean Patent No. 10-0817202 (published on Mar. 23, 2008).

As shown in FIG. 1, in the protruding-type writing instrument having the anti-fogging device for protecting the nip 41, a nip hole 11 is formed at one side A knock portion 30 coupled to the nip 41 so as to protrude and immerse the nip 41 in the shaft 10 and a knob portion 30 which is coupled to both ends of the knock portion 30 and the nip 41, A spring 50 coupled to the cartridge 40 so that the cartridge 40 is restored to the original position by an elastic force within the shaft 10 and a spring 50 supported by the spring 50, A holder 70 fixedly coupled to the shaft so as to be wrapped at one end thereof by an O-ring 60; a holder 70 slidably coupled in the holder 70, A plurality of elastic slits 85 formed in the elastic slit 85 move up and down along the holder 70 within the movement range, A link 80 which is engaged with the step 48 of the cartridge 40 by a latching part formed on the link 80 and a parallel pin 82 which is formed on the other end of the link 80 by a pin slit 92 The cartridge 40 and the link 80 are moved forward from the O-ring 60 and the holder 70 in the fixed state by the depression of the knocking portion 30. As a result, The pin 82 moves to the pin slit 92 of the ball type door 90 so that the rotary shaft 93 of the ball type door 90 supported by the spherical portion 70a is rotated to open the inside of the shaft The nip 11 protrudes.

When the ball-shaped door 90 is opened by the forward movement of the link 80, the ball-shaped door 90 rotated at about 90 degrees is caught by the stepped portion of the holder 70, so that over opening can be prevented.

However, as shown in FIG. 2, when returning to the home position, the ball-shaped door 90 must be positioned on the center line, which is the initial position, but occasionally the stop position is excessively rotated by 90 degrees or more, The nip 11 is not tightly sealed by the ball type door 90, and thus, there is a problem in that the drying may occur.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a hinge part of a holder, which can prevent over rotation of a hinge shaft, The present invention has been made in view of the above problems, and it is an object of the present invention to provide a writing instrument having an automatic sealing structure.

In order to achieve the above object, according to the present invention, there is provided a knocking apparatus comprising: a main body case having a nip hole formed at one end thereof; a knock portion coupled to the other end portion of the main body case, An O-ring which is supported by a spring and is fixed to the inside of the main body case and is fixed to the inside of the main body case by an O-ring, And a ball shutter rotatably coupled to the holder so as to protrude and seal the nip in accordance with the rotation of the holder, wherein the hinge axis of the ball shutter is in a fan shape And a protruding jaw is formed inside the hole at the hinge portion of the holder in which the hinge shaft is rotatably positioned so that the rotation of the hinge shaft To limit to the characteristics.

Preferably, the hinge axis of the ball shutter is an obtuse-angled sector, and the hinge portion having the protruding jaws includes the hinge shaft rotatably therein, and may be formed with a length of arc longer than an obtuse angle sector.

Furthermore, the protruding jaw can restrict rotation so that the ball shutter and the holder, which rotate and seal the nip hole, are aligned.

In the writing implement provided with the automatic closing structure according to the present invention, the ball shutter is prevented from being excessively rotated so that complete sealing can be performed, thereby reducing defects due to prevention of ink smearing on the nip.

1 is a perspective view showing a protruding-type writing instrument having a conventional anti-fogging device,
2 is an operational state view showing the degree of rotation of a conventional ball type door,
3 is a perspective view illustrating a writing implement having an automatic closing structure according to the present invention,
4 is a perspective view of a ball shutter and a holder according to the present invention,
5 is a perspective view of a closed state of the ball shutter according to the present invention,
FIG. 6 is a perspective view of the ball shutter according to the present invention,
7A and 7B are operational cross-sectional views of a writing implement having an automatic sealing structure according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a writing implement having an automatic closing structure according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a perspective view of a ball shutter and a holder according to the present invention, FIG. 5 is a perspective view of a ball shutter according to the present invention in a closed state, FIG. FIG. 6 is a perspective view of the ball shutter according to the present invention, and FIGS. 7a and 7b are operational sectional views of a writing implement having an automatic sealing structure according to the present invention.

3, the writing implement having the automatic closing structure according to the present invention includes a main body case 100 and a main body case 100. The main body case 100 is coupled to an end of the main body case 100, and the nip 138 is protruded and immersed A knock portion 120, a cartridge 130 inserted into the main body case 100 such as a spring 137, a first and second O-rings 140 fixedly coupled to the inside of the main body case 100, A holder 150 which is coupled and fixed to the inside of the body case 100 so as to be wrapped at one end thereof by a first O-ring 140, and a holder 150 which protrudes and seals the nip 138 A shutter 160, and a link 170 installed to rotate the ball shutter 160.

First, the main body case 100 may be formed by injection molding using a synthetic resin material or a metal material, or may be formed by a molding method, and may have a hollow pipe or tube shape.

In this case 100, two cases are screwed or interference fit, and a nip hole 102 is formed at one end of one case of a cone, and the other case includes a knock part 120, Thereby forming an insertion hole 104 having an inner diameter size capable of inserting and coupling components.

On the circumferential surface in the vicinity of the insertion hole 104, a clip portion 110 can be provided, which is capable of internally organizing the clip portion and releasing the clip portion.

The knock portion 120 which is engaged with the insertion hole 104 of the main body case 100 and protrudes and immerses the nip 138 in the main body case 100 through the nip hole 102 by the pressing operation, Which is formed in the inner side of the insertion hole 104 so as to transmit the force to the cartridge 130 by operation and is formed into a tube shape having a small diameter circular peripheral surface and a large diameter cylindrical surface, And the other end of the large diameter side is sealed.

The cartridge 130 corresponds to the ink storage portion and may have an internal volume of a predetermined capacity.

Such a cartridge 130 has a largest diameter tank portion 132, a relatively small diameter portion 132, and a relatively small diameter portion 132. The diameter of the tank portion 132 is larger than the diameter of the tank portion 132, And has a nip extension shaft portion 134 having a diameter smaller than that of the connection portion 133 and the connection portion 133 integrally.

An end side surface of the nip extension shaft portion 134 is provided with any contents stored in the tank portion 132 (for example, capillary phenomenon, pressure difference, suction, etc.) from the tank portion 132 The nip 138 can be inserted and fixed in the nip portion 135 so that the nip portion 138 can be supplied in accordance with the normal supply method corresponding to the type of the writing instrument.

In addition, a step 135a is formed in the nip fixing part 135, so that the nip fixing part 135 is engaged with the nip extension side part 134 with a stepped space.

3, the spring 137 is inserted into the nip extension shaft portion 134, and then is held so as to be supported by the contact surface 133 of the tank portion 132. As shown in FIG.

The spring 137 then serves to push the cartridge 130 axially within the stroke distance of the cartridge 130 in operation.

For example, when the cartridge 130 and the knock portion 120 advance by a predetermined stroke distance in the advancing direction, the spring 137 is compressed and has an elastic force (or restoring force) to be restored to the extended state. Here, the predetermined stroke distance of the cartridge 130 is equal to the distance between the stroke distance of the knock section 120 and the position at which the nip 138 will protrude from the original position. In addition, when the cartridge 130 and the knock part 120 are in the released state in which they can be returned in the backward direction, the spring 137 is urged by the elastic force of the knock part 120, And returns to the original position.

The spring 137 is applied to either the first O-ring 140, the holder 150, or the ball shutter 160 by the user's finger pressing force for advancing the cartridge 130 and the knock portion 120 It serves to attenuate the momentary impact.

The first and second O-rings 140 and 180 coupled to the inside of the main body case 100 together with the cartridge 130 maintain the airtightness at the inner circumference of the main body case 100, Silicone, or soft plastic used for watertightness or airtightness means of the waterproof cover.

A holder 150, a ball shutter 160, and a link 170 may be positioned between the first O-ring 140 and the second O-ring 180.

The holder 150 is coupled to the inside of the body case 100 so as to be wrapped at one end thereof by the first O-ring 140. The holder 150 is supported by the first O- And adheres to the hemispherical surface of the inside of the nip hole 102 of the case 100.

The holder 150 corresponds to a hollow bushing, and a pair of hinge portions 152 are formed in the front portion thereof. A ball shutter 160 is coupled to the hinge part 152 to provide a stable support surface while being rotated.

It is preferable that the diameter of the rear portion of the holder 150 has a diameter corresponding to that of the first O-ring 140. Inside the holder 150, a latching groove 154 is formed in the direction orthogonal to the hinge 152, So that a guide line of the guide key 178 of the link 170 to be described later is provided and a clearance space of the elastic slit 172 is formed.

Each of the hinge portions 152 of the perforated hole may have a protrusion 152a protruding inwardly as shown in FIG. 4 to restrict the rotation of the hinge shaft 164.

Therefore, the hinge portion 152 is formed in a fan shape rather than a perfect hole by the protrusion 152a. Preferably, the length of the arc is longer than the hinge axis 164 of the ball shutter 160 described below, The rotation range of the hinge shaft 164 can be limited to 85 ° to 95 ° depending on the length of the sector arc.

More preferably, the protruding jaw 152a rotates to restrict the rotation so that the ball shutter 160 and the holder 150, which hermetically seal the nip hole 102, are aligned with each other, that is, from the hinge 152 to the hinge shaft 152, The rotation range of the rotor 164 may be approximately 90 [deg.].

The ball shutter 160 is rotatably coupled to the holder 150 and functions as a door for protruding and sealing the nip according to the rotation. The ball shutter 160 has a substantially spherical shape and forms a through passage 162 which is open to both sides of the spherical outer peripheral side of the spherical surface through the central axis and a hinge shaft 164 is provided on both sides of the outer center portion orthogonal to the through passage 162 Is protruded and formed.

4, the hinge shaft 164 inserted into the hinge portion 152 of the holder 150 may have an obtuse angle.

The pin slit 166 faces the eccentric position near the hinge shaft 164, and may be inclined toward the center. The pin slit 166 is positioned with the pin 176 of the link 170 described below and the pin slit 166 inclined in the eccentric position is engaged with the pin 176, To a force for rotating the ball shutter 160 within a rotation angle range of a finite size.

3, the link 170 slidably coupled to the inside of the holder 150 is for inserting the nip extension shaft portion 134 as shown in FIG. 3. The one end portion of the link 150 facing the holder 150 is fixed in the circumferential direction A pair of elastic slits 172 are formed which are cut while facing each other while only one end is opened in the axial direction while maintaining the angular spacing.

The elastic slit 172 is disposed in the rear portion of the link 170 while a hook-shaped engaging portion 172a is formed at the end of each of the elastic slits 172. In this manner, And a pair of protrusions may be formed on the side face so as to face the unillustrated locking protrusions.

The elastic slit 172 is engaged with the engaging portion 172a of the elastic slit 172 at the step portion 135a of the nip fixing portion 135 described above and when the cartridge 130 is advanced, Like portion 172a of the holder 150 to be engaged with the engaging groove 154 of the holder 150 to assist the advancement of the cartridge 130. [

And then a cylindrical front end portion 175 integrally extending from the elastic slit 172 along the axial direction.

The front end portion 175 serves to rotate the ball shutter 160 in accordance with forward movement and forms protruding fins 176 at both ends of the front end portion 175.

The pin 176 is engaged with the pin slit 166 of the ball shutter 160 so that the link 170 rotates the ball shutter 160.

On the other hand, a guide key 178 similar to the groove plate shape of the baseball is formed on the columnar surface between the elastic slit 172 and the front end portion 175, and is preferably formed on the same line on which the elastic slit 172 is formed .

The guide key 178 can be moved along the retaining groove 154 of the holder 150 as described above.

The operation of the writing implement having the automatic closing structure according to the present invention having the above-described structure will be described with reference to FIGS. 7A and 7B for explaining the overall operating relationship as shown in FIG. 5 or FIG.

The cartridge 130 is positioned inside the main body case 100 and the knocking unit 120 is fastened to one end of the cartridge 130 in an engaging or screwing manner.

7A shows a state in which the ball shutter 160 closes the nip hole 102 at the start position of the first stroke.

That is, the through passage 162 of the ball shutter 160 is positioned on a straight line with the axial direction of the cartridge 130.

Since the first O-ring 140 keeps airtightness between the holder 150 and the spring 137 and the ball shutter 160 is also in close contact with the nip hole 102, The space inside the main body case 100 between the first O-ring 180 and the second O-ring 180 is in a sealed state, thereby preventing the ink in the nip 138 from being worn.

On the other hand, the nip 138 is engaged in a state surrounded by the nip fixture 135, and in particular, the engaging portion 172a of the link 170 and the normally engaged protrusion (not shown) are hooked on the shoulder portion 135a.

The link 170 is inserted into the holder 150 and the spring 137 interposed between the first O-ring 140 and the cartridge connecting portion 133 is connected to the link through the spring- 100 and the first O-ring 140. As a result,

7B, when the knocking unit 120 is pushed down to an extremely small stroke distance by the user's switch fixing operation or knocking operation, the knocking unit 120 and the cartridge 130 are moved in the advancing direction It shows the state of moving by the stroke distance.

At this time, although the spring 137 is in the same state as described above, the cartridge 130 is caused to exert a slightly larger spring elasticity force corresponding to the movement ratio, And the link 170 coupled thereto are moved by a stroke distance.

When the user further presses the knock portion 120 a predetermined stroke distance, the pin 176 of the advancing link 170 slides along the inclined pin slit 166 of the ball shutter 160, The ball shutter 160 is rotated by about 90 degrees by the hinge shaft 164 which is rotatably included in the hinge portion 152 of the link 170 and the guide key 178 of the link 170 is fixed And moves along the retaining groove 154 of the holder 150

Therefore, the through passage 162 of the ball shutter 160 is aligned with the axial direction of the cartridge 130 and penetrates the nip hole 102.

The nip 138 exits the nip hole 102 and remains in a protruding state, and in this state, the user can use the writing implement of the present invention.

On the other hand, the user can release the nip 138 in the protruded state to the inside of the main body case 100 by releasing the clip portion 110.

The user pushes the knock portion 120 to move the clip portion 110 backward in the direction in which the clip portion 110 is released from the end groove 105 of the main body case 100. [

As the compressed spring 137 is stretched, the knocking portion 120 and the cartridge 130 are reversed, and the reverse sequence of advancing is performed.

That is, the backward cartridge 130 is inserted into the link 170, and the elastic slit 172 of the link 170 is moved along the latching groove 154 as described above.

With the retraction of the link 170, the pin 176 of the link 170 rotates the ball shutter 160, at which time an obtuse sector-shaped hinge 152 located in the hinge 152 of the holder 150, The shaft 164 rotates within the hinge 152 and is caught in the protruding jaw 152a to prevent further rotation and this point lies on a straight line exactly centered on the nip 138. [ As a result, when the ball shutter 160 is returned to its original position, the hinge shaft 164 of the sectorial shape is prevented from being excessively rotated by the protrusion 152a of the hinge portion 152 serving as a stopper, It is possible to prevent drying.

The knob portion 120, the cartridge 130, the nip 138 and the link 170 are returned to the starting position of the initial stroke when the spring 137 is extended to the original length, and the ball shutter 160 The nip hole 102 is sealed and the nip 138 is securely and hermetically stored inside the through passage 162 of the ball shutter 160.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: Body case 102: Nip hole
104: insertion hole 110: clip portion
120: Knock section 130: Cartridge
131: cartridge hole 132: tank portion
133: connection portion 134: nip extension shaft portion
135: Nip fixture 135a:
137: spring 138: nip
140, 180: first and second O-rings 150: holder
152: Hinge part 152a:
154:
160: ball shutter 162: through passage
164: Hinge shaft 166: Pin slit
170: Link 172: Elastic slit
172a: fastening portion 175: front end portion
176: pin 178: guide key

Claims

A nip portion 102 formed at one end of the main body case 100 and formed with a nip portion 102 which is engaged with the other end portion of the main body case 100 and protrudes and immerses the nip 138 from the main body case 100, A cartridge 130 inserted into the main body case 100 as a spring 137 in a state where the knocking unit 120 and the nip 138 are coupled to both ends of the main body case 100, A first and a second O-rings 140 and 180 fixedly coupled to the inside of the case 100 and a second O-ring 140 and 180 fixedly coupled to the inside of the main body case 100 so as to be wrapped by the O- And a ball shutter 160 rotatably coupled to the holder 150 to project and seal the nip 138 according to the rotation of the holder 150. In the writing implement having the automatic closing structure,
The hinge shaft 164 of the ball shutter 160 is formed in a fan shape,
Wherein a protrusion 152a is formed in a hinge portion 152 of the holder 150 in which the hinge shaft 164 is rotatably positioned to restrict rotation of the hinge shaft 164, A writing instrument having a sealing structure.

The method according to claim 1,
The hinge axis 164 of the ball shutter 160 is in the form of an obtuse angle,
The hinge portion 152 having the protruding protrusion 152a is formed to have an arc length larger than that of an obtuse angle. The hinge portion 152 includes the hinge shaft 164 rotatably installed therein. A writing instrument.

The method according to claim 1,
Wherein the protrusion protrusion (152a) rotates to restrict the rotation so that the ball shutter (160) sealing the nip hole (102) and the holder (150) are positioned on a straight line. Writing instruments.