KR20170027560A - Writing instrument having automatic sealing structure - Google Patents

Writing instrument having automatic sealing structure Download PDF

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Publication number
KR20170027560A
KR20170027560A KR1020150124350A KR20150124350A KR20170027560A KR 20170027560 A KR20170027560 A KR 20170027560A KR 1020150124350 A KR1020150124350 A KR 1020150124350A KR 20150124350 A KR20150124350 A KR 20150124350A KR 20170027560 A KR20170027560 A KR 20170027560A
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KR
South Korea
Prior art keywords
body case
nip
coupled
holder
ball shutter
Prior art date
Application number
KR1020150124350A
Other languages
Korean (ko)
Other versions
KR101886785B1 (en
Inventor
윤현선
Original Assignee
주식회사 모리스
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 주식회사 모리스 filed Critical 주식회사 모리스
Priority to KR1020150124350A priority Critical patent/KR101886785B1/en
Publication of KR20170027560A publication Critical patent/KR20170027560A/en
Application granted granted Critical
Publication of KR101886785B1 publication Critical patent/KR101886785B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • 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

Abstract

The objective of the present invention is to provide a writing material including an automatic sealing structure, reducing a diameter of an entire writing material due to size reduction of a ball shutter to improve a grip of a user. According to the present invention, the writing material comprises: a body case having a nip hole formed on one end; a knock part combined with the other end part of the body case to eject and insert a nip from and into the body case by push operation; a cartridge inserted inside the body case together with a spring when the knock part and the nip are coupled to both ends respectively; a first and a second O-ring coupled inside the body case to be fixated; a holder coupled inside the body case in order to surround one side end by the O-ring; the ball shutter coupled with the holder to be able to rotate to eject or close the nip in accordance with rotation; and a link coupled inside the holder to be able to slide, including a cut piece projected out from one part of the end part of a hollow pillar by having a circumference to rotate the ball shutter.

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, which is inconvenient for 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 pen with a cap is inconvenient 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.

As shown in FIG. 2, in the course of the rotation of the ball-type door 90 by the forward movement of the link 80, the front end of the link 80 is moved in the forward direction from the inner side of the ball- .

Therefore, the size of the ball-type door 90 must be determined by the diameter of the link 70 because the link 80 is located on the inner side of the ball-type door 90. In other words, the ball-type door 90 has to include the link 80 inwardly and therefore has to be larger than the diameter of the link 80, so that the diameter of the other parts also increases and finally the diameter of the whole shaft 10 The weight is increased and the grip of the writing instrument is deteriorated.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a writing implement having an automatic sealing structure capable of reducing the diameter of the entire writing implement, That is the purpose.

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, A first and a second O-rings fixedly coupled to the inside of the main body case, and a second O-ring, which is coupled to the inside of the main body case, A ball shutter rotatably coupled to the holder and rotatably coupled to the inside of the main body case to project and seal the nip in accordance with the rotation; And a link provided with a cut-out portion protruding therefrom so as to rotate the ball shutter.

Preferably, the link has a pair of elastic slits facing the hollow column end portion facing the holder, a cut-away surface formed at both ends of the cut-off piece, and a ball cutter at the other end of the column orthogonal to the cut- An incision jaw may be formed along the circumferential surface.

Further, the circumferential circumference of the incision may be formed to be equal to or smaller than the inner diameter of the circumference of the ball shutter.

Further, the circumference diameter of the cutting jaw may be the same as the circumferential outer diameter of the ball shutter.

In the writing implement provided with the automatic closing structure according to the present invention, the size of the ball shutter can be reduced to reduce the diameter of the entire writing implement, thereby improving the grip of the user.

In addition, the present invention has the effect of reducing the size of the ball shutter, thereby reducing the axis of the writing tool, thereby reducing the amount of air flowing into the ball shutter during opening and closing of the ball shutter, thereby effectively preventing ink drift in the nip.

1 is a perspective view showing a protruding-type writing instrument having a conventional anti-fogging device,
Fig. 2 is an operational state diagram of a conventional ball-type door and a link,
3 is a perspective view illustrating a writing implement having an automatic closing structure according to the present invention,
4A and 4B are perspective views of a link according to the present invention,
5A and 5B are a perspective view and a side view of a closed state of a ball shutter and a link according to the present invention,
6A and 6B are a perspective view and a side view of the ball shutter and the link in a hot state 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.

4A and 4B are perspective views of a link according to the present invention, FIGS. 5A and 5B are views showing a ball shutter and a link according to the present invention, FIGS. 6A and 6B are a perspective view and a side view, respectively, of a hot state of a ball shutter and a link according to the present invention, and FIGS. 7A and 7B are perspective views and side views of a writing implement having an automatic closing structure according to the present invention. Fig.

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 coupled to the inside of the body case 100 so as to be wrapped at one end thereof by an O-ring 140, a ball shutter (not shown) for projecting and sealing the nip 138 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 portion 120 An insertion hole 104 having an inner diameter size capable of inserting and connecting the following components is formed.

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 this case, a step 135a is formed in the nip fixing part 135 so as to be 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 is positioned to be supported by the stepped surface of the connection portion 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 used to apply a momentary shock to be applied to either the O-ring 140, the holder 150, or the ball shutter 160 by the finger pressing force of the user for advancing the cartridge 130 and the knocking unit 120 And the like.

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.

Such a holder 150 corresponds to a hollow bushing, and a pair of hinge parts 152 are formed on the front part facing each other in a semicircular shape. 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.

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.

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.

Meanwhile, the link 170 slidably coupled to the inside of the holder 150 is inserted into the holder 150, as shown in FIGS. 4A and 4B to 5A and 5B and 6A and 6B, One end of the elastic slit 172 facing the holder 150 is formed with a pair of elastic slits 172 that are cut while facing one end in the axial direction while maintaining a predetermined angle interval in the circumferential direction.

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 the latching protrusions 174 may be formed on the side faces.

The engaging portion 172a of the elastic slit 172 and the normally engaging protrusion 174 are positioned on the step portion 135a of the nip fixing portion 135 described above and when the cartridge 130 is advanced, 172 are extended in the engagement grooves 154 of the holder 150 like the engagement portions 172a to help advance the cartridge 130. [

And an incision 175 that extends integrally along the axial direction from the elastic slit 172 can be formed.

The incision 175 is protruded from a part of the hollow column end with a circumferential periphery to rotate the ball shutter 160.

A cutout surface 175a is formed at both ends of the segmented segment 175 in the longitudinal direction and a pin 176 is formed on the segmented cutout surface 175a to locate the pin slit 166 of the ball shutter 160, An incision jaw 177 for limiting the rotation of the ball shutter 160 may be formed along the circumferential surface on the other end side of the column orthogonal to the incision surface 175a.

Further, the circumferential circumference of the segment 175 may be equal to or smaller than the circumference of the circumference of the ball shutter 160.

In addition, the circumference diameter of the cutting jaw 177 may be equal to the circumferential outer diameter of the ball shutter 160.

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 separable piece 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.

7A and 7B illustrate the operation of the writing implement having the automatic closing structure according to the present invention in the assembled state of the writing implement having the automatic closing structure with reference to 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.

In other words, the through passage 162 of the ball shutter 160 is directed in a direction perpendicular to 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 fixing portion 135, and in particular, the engaging portion 172a of the link 170 and the always engaging protrusion 174 are engaged with the step 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 guide 170 of the link 170 rotates the ball shutter 160 by the hinge shaft 164 engaged with the hinge 152 of the holder 170 And moves along the groove 154

At this time, since the discrete piece 175 of the link 170 has a length of the arc not overlapping the inner side of the ball shutter 160, the ball shutter 160 rotated about 90 degrees rotates along the cut surface 175a And is rotated to the position of the cutting jaw 177.

Here, since the circumferential circumference of the segment 175 is formed to be equal to or smaller than the circumferential inner diameter of the ball shutter 160, the ball shutter 160 can be formed on the same surface without protruding from the link 170.

Accordingly, the through passage 162 of the ball shutter 160 coincides with the axial direction of the cartridge 130 to allow the nip hole 102 to communicate therewith.

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 causes the ball shutter 160 to be rotated and rotated by a rotation angle of approximately 90 degrees.

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

As described above, according to the present invention, the size of the ball shutter 160 can be reduced to reduce the overall diameter of the writing implement, thereby improving the grip of the user. The size of the ball shutter 160 reduces the size of the ball- The diameter of the nip 138 can be reduced more effectively, thereby reducing the amount of air flowing into the nip 138 more effectively when the ball shutter 160 is opened or closed.

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 154:
160: ball shutter 162: through passage
164: Hinge shaft 166: Pin slit
170: Link 172: Elastic slit
172a: Retaining part 174:
175: Section Revision 175a: Incision plane
176: pin 177: incision jaw
178: guide key

Claims (4)

A body case 100 in which a nip hole 102 is formed at one end,
A knock portion 120 coupled to the other end of the main body case 100 and projecting and immersing the nip 138 in the main body case 100 by a pressing operation,
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,
A first O-ring 140 and a second O-ring 140 which are coupled to and fixed to the inside of the body case 100,
A holder 150 coupled to the inside of the body case 100 so as to be wrapped at one end thereof by the O-ring 140,
A ball shutter 160 rotatably coupled to the holder 150 to protrude and seal the nip 138 according to the rotation,
A link 170 slidably coupled to the inside of the holder 150 and protruding from a portion of the hollow column end portion to have a circumferential periphery and provided with a separator 175 for rotating the ball shutter 160, ,
And an automatic sealing structure.
The method according to claim 1,
The link (170)
A pair of elastic slits 172 are formed facing the hollow column end portion toward the holder 150,
A cutting surface 175a is formed at both ends of the cutting piece 175 in the longitudinal direction,
And a cut-off step (177) for restricting the rotation of the ball shutter (160) is formed along the circumferential surface on the other end side of the column orthogonal to the cut-off surface (175a).
3. The method according to claim 1 or 2,
Wherein the circumferential circumference of the discoid piece (175) is formed to be equal to or smaller than an inner diameter of the circumference of the ball shutter (160).
3. The method of claim 2,
And the circumference diameter of the incision jaw (177) is equal to the outer diameter of the circumference of the ball shutter (160).
KR1020150124350A 2015-09-02 2015-09-02 Writing instrument having automatic sealing structure KR101886785B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150124350A KR101886785B1 (en) 2015-09-02 2015-09-02 Writing instrument having automatic sealing structure

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KR20170027560A true KR20170027560A (en) 2017-03-10
KR101886785B1 KR101886785B1 (en) 2018-08-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022100434A1 (en) * 2020-11-13 2022-05-19 宋迎迎 Pen having three operations of pen clip lifting, pulling and pressing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050087188A (en) * 2004-02-26 2005-08-31 주식회사 모리스 Slide type writing tools having device for preventing dryness
KR100817202B1 (en) * 2007-04-17 2008-03-27 주식회사 모리스 Slide type writing tools having device for preventing dryness
KR100880197B1 (en) * 2008-08-14 2009-01-28 최영준 Appearing and disappearing method writing instrument for dry prevention
KR20120065126A (en) * 2010-12-10 2012-06-20 주식회사 모리스 Gel Container Having Automatic Sealing Structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050087188A (en) * 2004-02-26 2005-08-31 주식회사 모리스 Slide type writing tools having device for preventing dryness
KR100817202B1 (en) * 2007-04-17 2008-03-27 주식회사 모리스 Slide type writing tools having device for preventing dryness
KR100880197B1 (en) * 2008-08-14 2009-01-28 최영준 Appearing and disappearing method writing instrument for dry prevention
KR20120065126A (en) * 2010-12-10 2012-06-20 주식회사 모리스 Gel Container Having Automatic Sealing Structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022100434A1 (en) * 2020-11-13 2022-05-19 宋迎迎 Pen having three operations of pen clip lifting, pulling and pressing

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