CN103042863A - Pulsation type mechanical pencil - Google Patents
Pulsation type mechanical pencil Download PDFInfo
- Publication number
- CN103042863A CN103042863A CN2013100072931A CN201310007293A CN103042863A CN 103042863 A CN103042863 A CN 103042863A CN 2013100072931 A CN2013100072931 A CN 2013100072931A CN 201310007293 A CN201310007293 A CN 201310007293A CN 103042863 A CN103042863 A CN 103042863A
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- Prior art keywords
- core
- refill
- pencil
- passage
- nib
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- 230000010349 pulsation Effects 0.000 title abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 239000012467 final product Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The invention discloses a pulsation type mechanical pencil which comprises a pencil holder and a pencil head. The pencil tube and the pencil head are in threaded match, a refill passage is arranged in the pencil head, a refill outlet end of the refill passage is provided with a refill receiving tube, a refill storage tube is arranged in the pencil holder, a locking hoop and a refill protection tube are sequentially sleeved outside the refill storage tube, the pencil head is provided with a radially-through mounting hole, and a shifting plate is mounted in the mounting hole and provided with an inner threaded hole corresponding to the refill passage in position. A remnant refill jacket sliding along the refill passage is in threaded fit in the inner threaded hole and peripherally positioned in the refill passage, an elastic remnant refill gripping jaw is arranged at an axial end of the remnant refill jacket, and the inner wall of the refill passage is provided with a guide step used for extruding the remnant refill gripping jaw to close up. Compared with the prior art, the pulsation type mechanical pencil is convenient and effective for utilization of the last segment of a remnant refill, so that resources are saved, and waste is reduced.
Description
Technical field
The present invention relates to a kind of propelling pencil, relate in particular to a kind of pulsating propelling pencil.
Background technology
Propelling pencil claims again mechanical pencil, Black lead writing appliance or propelling pencil, is a kind of mechanically pencil of running.Because it can refill, does not need to cut the plane pencil, and is very convenient, popularity is high.
Propelling pencil is divided into thick core (greater than 0.9mm) and thin core (less than 0.9mm) propelling pencil according to the pencil-lead diameter.Can be divided into according to the knockout mode: knock type, rotary, pulsating good and automatic compensation type.Knock type is by the automatic lead for retractable pencil of lead for retractable pencil gravity; Rotary by rotation conveying lead for retractable pencil; Pulsating (knock-type) is carried lead for retractable pencil by pressing; Automatic compensation type does not need rotation or palsating equipment, but the auto-compensation lead for retractable pencil, continuous writing.
The cassette mechanism structure of pulsating is the basic structure form that propelling pencil generally adopts, and mainly is comprised of pen container, nib, retaining core pipe, dop, locking strap, spring etc.Do the time spent when core storage tube is subjected to pressing pressure (finger pressure), the elastic force that overcomes spring moves down, and the dop calvus is opened, and lead for retractable pencil relies on the gravity of self simultaneously, leaves the origin-location in the core storage tube, moves forward certain-length.Behind the pressing earth pressure release, spring sets back, and lead for retractable pencil is held tightly by the dop calvus, and the knockout process of once pulsing is finished in locking strap and retaining core pipe auto lock location.According to this back and forth can the continuous pulsation knockout.
The cassette mechanism structure of pulsating can be divided into: a knock-type, and namely pressing once goes out lead for retractable pencil; The secondary knock-type, namely for the first time pressing connects the core pipe and stretches out penholder, and the pressing lead for retractable pencil stretches out for the second time; A double card knock-type adopts the double card header structure, has shortened dop and has connect distance between the core tube end, makes the one section residual core of last remaining 8～15mm in the propelling pencil, can go out a whole lead for retractable pencil without pressing it is ejected, and gets final product continuous writing.
But double clip head mechanical propelling pencil is because dop and connect between the core pipe and still have certain distance, in sending plumbous process, the lead for retractable pencil of back does not overlap with the lead for retractable pencil of front if dop is given a shock, and the lead for retractable pencil of back just can not be sent smoothly, and the residual core of front still can't use.
Publication number is that the Chinese patent literature of CN 1323853C discloses a kind of double clip head mechanical propelling pencil and comprises a cylinder, a cylinder cap for brush that removably connects this cylinder front end, a pig that inserts in this cylinder, be combined with pig for one and be used for to plumbous to plumbous dop, give the casing cushion on the plumbous dop for one, and one be combined with this casing cushion hold plumbous dop.Contain and hold the plumbous unit of holding of plumbous dop and casing cushion and contain can in the cylinder cap for brush, be in contact with one another to plumbous unit to plumbous dop and sleeve pipe.
This double clip head mechanical propelling pencil complex structure, poor controllability can't arbitrarily regulate with the residual core to different length being used.
Summary of the invention
The invention provides a kind of pulsating pencil, this pulsating propelling pencil can effectively utilize the residual core of the final stage of lead for retractable pencil.
Technical scheme of the present invention is:
A kind of pulsating propelling pencil, the pen container and the nib that comprise threaded engagement, described nib is interior with crossing the core passage, the knockout end of crossing the core passage is provided with and connects the core pipe, be provided with core storage tube in the described pen container, the core storage tube outside is arranged with locking strap and retaining core pipe successively, and described nib offers the installing hole that radially connects, in this installing hole shifting disc is housed, this shifting disc is with the internal thread hole corresponding with crossing the core channel position;
Threaded engagement has the residual core chuck that slides along crossing the core passage in the described internal thread hole, and this residual core chuck is circumferentially located in crossing the core passage, the axial end of described residual core chuck is provided with flexible residual core jaw, and the described inner wall belt of crossing the core passage is useful on the guiding step that the residual core jaw of extruding draws in.
With flanging, this a flanging dorsad side of nib is used for fixedly core storage tube against the end face of pen container to described retaining core pipe, makes it and can not arbitrarily rock in pen container towards an end of nib.Butt has spring between described retaining core pipe inwall and the core storage tube outer wall, and core storage tube is towards the elastic dop of an end of nib.Spring plays springing, makes the end of the retaining core pipe locking strap that links closely.
When lead for retractable pencil is longer, core storage tube to be exerted pressure, described locking strap and retaining core pipe make spring contraction against nib, dop opens, and the lead for retractable pencil reach is behind the earth pressure release, lead for retractable pencil is namely held tightly by described dop, and the knockout process of once pulsing is finished in locking strap and retaining core pipe auto lock location.According to this back and forth can the continuous pulsation knockout.
When the length of lead for retractable pencil because of less than described dop and connect between the core pipe apart from the time, described dop can't be held lead for retractable pencil tightly, is unfavorable for writing.Therefore, pulsating propelling pencil of the present invention is provided with residual core chuck in nib.
Preferably, described residual core chuck comprises the sleeve pipe of inwall and lead for retractable pencil matched in clearance, and this sleeve outer wall is provided with the external screw thread that matches with internal thread hole, and described residual core jaw has two at least, is fixed on sleeve pipe towards an end that connects the core pipe.
When lead for retractable pencil is used last segment, the manual rotation shifting disc, the external screw thread of sleeve pipe cooperates with internal thread hole, and residual core chuck slides to the direction that connects the core pipe along crossing the core passage, and the guiding step pushes residual core jaw and makes it to draw in, clamps lead for retractable pencil.
For exempt from shifting disc when rotating residual core chuck circumferentially rotate thereupon, described residual core chuck circumferentially was positioned in the core passage.Preferably, the outer wall of described residual core jaw is provided with along the axial arranged circumferential positioning key of nib, and the described inwall of crossing the core passage is provided with the positioning runner that cooperates with circumferential positioning key.Can guarantee that so residual core chuck can only endwisely slip along crossing the core passage, realizes the clamping to the different length lead for retractable pencil of remnants.
For making the smoothly residual core jaw of extruding of guiding step, described guiding step has the compressive plane that matches with residual core jaw, and the angle of this compressive plane and pen tip axis is 20～40 degree.Less angle makes residual core jaw easily along this compressive plane down sliding.
Similarly, match with the compressive plane of described guiding step, the end of described residual core jaw is rounding.The end face of rounding dihedral makes the slip of residual core jaw more smooth and easy, avoids producing unnecessary colliding with and rubbing.
Skidding occurs when exempting from the manual rotation shifting disc, the outer circumference surface of described shifting disc is with anti-skidding striped.To increase the coefficient of friction between writer's finger and the shifting disc.
Rock in installing hole for exempting from shifting disc, preferably, described installing hole is at two opposite faces of nib on the axially shifting disc that reclines.The thickness of shifting disc is with the distance between described two opposite faces of infinite approach but do not affect the smooth and easy rotation of shifting disc in installing hole and be advisable.
Similarly, skid off installing hole for exempting from described shifting disc, two opposite faces of described installing hole on nib is axial are provided with for the positioning convex that limits the shifting disc outer fringe position.Preferably, the height of described positioning convex is 0.5～1mm.Be unfavorable for highly too greatly the installation of described shifting disc.
During assembling, connect the knockout end that the core pipe was fixed on the core passage with described first; Again described shifting disc is embedded in the installing hole of nib, the outer rim of shifting disc is stuck between the positioning convex of installing hole; At last described residual core chuck is screwed in the internal thread hole of shifting disc, and the outer circumferential positioning key of residual core jaw was embedded in the positioning runner of core vias inner walls; Nib and pen container are screwed, namely be assembled into pulsating propelling pencil of the present invention.
During use, pressing propelling pencil by the pen, core storage tube is applied the pressing active force, the elastic force that core storage tube overcomes spring moves down, and dop is opened, simultaneously lead for retractable pencil reach, when lead for retractable pencil stretches out the length of enough writing from connecing the core pipe, the pressing earth pressure release, spring sets back, lead for retractable pencil is held tightly by dop, and locking strap and retaining core pipe auto lock location back and forth get final product the continuous pulsation knockout according to this; When lead for retractable pencil is used last segment, in the time of can't being held tightly by described dop, then manually lead for retractable pencil is pulled out suitable length of writing, and rotate described shifting disc, residual core chuck is slided to the direction that connects the core pipe along crossing the core passage, and described guiding step pushes residual core jaw and makes it to draw in, clamps lead for retractable pencil; When the rotation shifting disc still can't clamp lead for retractable pencil, then counter-rotate shifting disc, residual core chuck is slided to the direction of pen container, residual core jaw opens, and changes lead for retractable pencil.
Compared with prior art, beneficial effect of the present invention is:
Pulsating propelling pencil of the present invention can utilize the residual core of the final stage of pencil-lead easily and effectively, economizes on resources, and cuts the waste.
Description of drawings
Fig. 1 is the structural representation of pulsating propelling pencil of the present invention.
The specific embodiment
Pulsating propelling pencil as shown in Figure 1 comprises pen container 1 and the nib 2 of threaded engagement.Wherein, be provided with core storage tube 3 in the pen container 1, core storage tube 3 outsides are arranged with locking strap 6 and retaining core pipe 4 successively.
As seen from Figure 1, with flanging 41, this flanging 41 a dorsad side of nib 2 is used for fixedly core storage tube 3 against the end face of pen container 1 to retaining core pipe 4 towards a nib end of 2, makes it arbitrarily to rock in that pen container 1 is interior.
Going back butt between retaining core pipe 4 inwalls and core storage tube 3 outer walls has spring 31, and core storage tube 3 is towards the elastic dop 32 of an end of nib 2.Spring 31 plays springing, makes the end of retaining core pipe 4 locking strap 6 that links closely.
When lead for retractable pencil 10 is longer, core storage tube 3 to be exerted pressure, locking strap 6 and retaining core pipe 4 shrink spring 31 against nib 2, and dop 32 opens, lead for retractable pencil 10 reaches; Behind the earth pressure release, lead for retractable pencil 10 is namely held tightly by dop 32, and the knockout process of once pulsing is finished in locking strap 6 and retaining core pipe 4 auto locks location.According to this back and forth can the continuous pulsation knockout.
But when lead for retractable pencil 10 was used last segment, dop 32 can't be held lead for retractable pencil 10 tightly.For last segment to lead for retractable pencil 10 effectively utilizes, pulsating propelling pencil of the present invention has been done improvement in that nib 2 is interior.
As seen from Figure 1, with crossing core passage 24, the knockout end of crossing core passage 24 is provided with and connects core pipe 9 in the nib 2; Nib 2 offers the installing hole 21 that radially connects, and in this installing hole 21 shifting disc 7 is housed, and this shifting disc 7 is with the internal thread hole corresponding with crossing core passage 24 positions; Threaded engagement has the residual core chuck 8 that slides along crossing core passage 24 in the internal thread hole, and this residual core chuck 8 is being crossed core passage 24 interior circumferential location.
Residual core chuck 8 comprises the sleeve pipe 83 of inwall and lead for retractable pencil 10 matched in clearance, and these sleeve pipe 83 outer walls are provided with the external screw thread that matches with internal thread hole; Towards an end that connects core pipe 3, also be fixed with residual core jaw 81 at sleeve pipe 83; Residual core jaw 81 has two at least, and has elasticity.
When the length of lead for retractable pencil 10 because of less than dop 32 and when connecing distance between the core pipe 9 and can not be held tightly by dop 32, manual rotation shifting disc 7,8 edges of the residual core chuck that cooperates with the internal thread hole of shifting disc 7 are crossed core passage 24 and are slided to the direction that connects core pipe 9, make sleeve pipe 83 entangle lead for retractable pencil 10.
For residual core jaw 81 is clamped lead for retractable pencil 10, cross the inwall of core passage 24 with guide table rank 25, the guiding step 25 residual core jaws 81 of extruding also make it to draw in, clamp lead for retractable pencil 10.
For making the smoothly residual core jaw 81 of extruding of guiding step 25, guiding step 25 has the compressive plane that matches with residual core jaw 81, and the angle of this compressive plane and written 2 axis is 20～40 degree.Less angle makes residual core jaw 81 easily along this compressive plane down sliding.
Match with the compressive plane of guiding step 25, the end of residual core jaw 81 is rounding.So can make residual core chuck 8 endwisely slipping in crossing core passage 24 more smooth and easy, avoid producing unnecessary colliding with and rubbing.
For exempt from shifting disc 7 when rotating residual core chuck 8 circumferentially rotate thereupon, residual core chuck 8 is circumferentially to be positioned in the core passage 24.Circumferentially the mode of location is preferably: the outer wall of residual core jaw 81 is provided with along written 2 axial arranged circumferential positioning keys 82, and the inwall of crossing core passage 24 is provided with the positioning runner (omitting among the figure) that cooperates with circumferential positioning key 82.Can guarantee that so residual core chuck 8 can only endwisely slip along crossing core passage 24, realizes the clamping to the different length lead for retractable pencil 10 of remnants.
Skidding occurs when exempting from manual rotation shifting disc 7, the outer circumference surface of shifting disc 7 is with anti-skidding striped (omitting among the figure).To increase the coefficient of friction between writer's finger and the shifting disc 7.
Rock in installing hole 21 for exempting from shifting disc 7, preferably, installing hole 21 is at two opposite faces of nib 2 on axially, i.e. opposite face 22 and opposite face 23 shifting disc 7 that reclines.The thickness of shifting disc 7 is with the distance between two opposite faces of infinite approach but do not affect the smooth and easy rotation of shifting disc 7 in installing hole 21 and be advisable.
Similarly, skid off installing hole 21 for exempting from shifting disc 7, installing hole 21 is provided with for the positioning convex (figure omits) that limits shifting disc 7 outer fringe positions at two opposite faces of nib 2 on axially.The height of positioning convex is preferably 0.5～1mm.Be unfavorable for highly too greatly the installation of shifting disc 7.
During assembling, will connect first the knockout end that core pipe 9 was fixed on core passage 24; Again shifting disc 7 is embedded in the installing hole 21 of nib 2, the outer rim of shifting disc 7 is stuck between the positioning convex of installing hole 21; At last residual core chuck 8 is screwed in the internal thread hole of shifting disc 7, and the circumferential positioning key 82 on residual core jaw 81 outer walls was embedded in the positioning runner of core passage 24 inwalls; Nib 2 and pen container 1 are screwed, namely be assembled into pulsating propelling pencil of the present invention.
During use, pressing propelling pencil by the pen (omitting among the figure), core storage tube 3 is applied the pressing active force, the elastic force that core storage tube 3 overcomes spring 31 moves down, and dop 32 is opened, simultaneously lead for retractable pencil 10 reaches, when lead for retractable pencil 10 stretches out the length of enough writing from connecing core pipe 9, the pressing earth pressure release, spring 31 sets back, lead for retractable pencil 10 is held tightly by dop 32, and locking strap 6 and retaining core pipe 4 auto locks location back and forth get final product the continuous pulsation knockout according to this; When lead for retractable pencil 10 is used last segment, in the time of can't being held tightly by dop 32, then manually lead for retractable pencil 10 is pulled out suitable length of writing, and rotation shifting disc 7, residual core chuck 8 is slided to the direction that connects core pipe 9 along crossing core passage 24, and the residual core jaw 81 of guiding step 25 extruding makes it to draw in, clamps lead for retractable pencil 10; When rotation shifting disc 7 still can't clamp lead for retractable pencil 10, then counter-rotate shifting disc 7, residual core chuck 8 is slided to the direction of pen container 1 along crossing core passage 24, residual core jaw 81 opens, and changes lead for retractable pencil 10.
Claims (8)
1. pulsating propelling pencil, the pen container (1) and the nib (2) that comprise threaded engagement, described nib (2) is interior with crossing core passage (24), the knockout end of crossing core passage (24) is provided with and connects core pipe (9), be provided with core storage tube (3) in the described pen container (1), core storage tube (3) outside is arranged with locking strap (6) and retaining core pipe (4) successively, it is characterized in that, described nib (2) offers the installing hole (21) that radially connects, shifting disc (7) is housed in this installing hole (21), and this shifting disc (7) is with the internal thread hole corresponding with crossing core passage (24) position;
Threaded engagement has the residual core chuck (8) that slides along crossing core passage (24) in the described internal thread hole, and this residual core chuck (8) is circumferentially located in crossing core passage (24), the axial end of described residual core chuck (8) is provided with flexible residual core jaw (81), and the described inner wall belt of crossing core passage (24) is useful on the guiding step (25) that the residual core jaw of extruding (81) draws in.
2. pulsating propelling pencil as claimed in claim 1, it is characterized in that, described residual core chuck (8) comprises the sleeve pipe (83) of inwall and lead for retractable pencil (10) matched in clearance, this sleeve pipe (83) outer wall is provided with the external screw thread that matches with internal thread hole, described residual core jaw (81) has two at least, is fixed on sleeve pipe (83) towards an end that connects core pipe (3).
3. pulsating propelling pencil as claimed in claim 2, it is characterized in that, the outer wall of described residual core jaw (81) is provided with along nib (2) axial arranged circumferential positioning key (82), and the described inwall of crossing core passage (24) is provided with the positioning runner that cooperates with circumferential positioning key (82).
4. pulsating propelling pencil as claimed in claim 1 is characterized in that, described guiding step (25) has the compressive plane that matches with residual core jaw (81), and this compressive plane is 20～40 degree with the angle of nib (2) axis.
5. such as the arbitrary described pulsating propelling pencil of claim 1～4, it is characterized in that the end of described residual core jaw (81) is rounding.
6. pulsating propelling pencil as claimed in claim 5 is characterized in that, the outer circumference surface of described shifting disc (7) is with anti-skidding striped.
7. pulsating propelling pencil as claimed in claim 5 is characterized in that, two opposite faces (22,23) the recline shifting discs (7) of described installing hole (21) on nib (2) is axial.
8. pulsating propelling pencil as claimed in claim 5 is characterized in that, two opposite faces (22,23) of described installing hole (21) on nib (2) is axial are provided with for the positioning convex that limits shifting disc (7) outer fringe position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310007293.1A CN103042863B (en) | 2013-01-09 | 2013-01-09 | Pulsation type mechanical pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310007293.1A CN103042863B (en) | 2013-01-09 | 2013-01-09 | Pulsation type mechanical pencil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103042863A true CN103042863A (en) | 2013-04-17 |
| CN103042863B CN103042863B (en) | 2015-01-14 |
Family
ID=48055810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310007293.1A Expired - Fee Related CN103042863B (en) | 2013-01-09 | 2013-01-09 | Pulsation type mechanical pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103042863B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440051A (en) * | 2013-07-26 | 2013-12-11 | 张晶 | Stylus pen |
| CN106585182A (en) * | 2016-12-26 | 2017-04-26 | 孟红琳 | Mechanical pencil for preventing pencil lead break |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2604693A (en) * | 1951-01-05 | 1952-07-29 | Schierstead Alfred | Dental finishing tool |
| JP2001260588A (en) * | 2000-03-14 | 2001-09-25 | Kokuyo Co Ltd | Extension pencil |
| JP2004130765A (en) * | 2002-10-07 | 2004-04-30 | Yuji Makita | Knock type mechanical pencil with lead usable to end |
| JP2005297505A (en) * | 2004-04-16 | 2005-10-27 | Pilot Precision Co Ltd | Mechanical pencil |
| US7097375B1 (en) * | 2005-12-20 | 2006-08-29 | Jakks Pacific, Inc. | Mechanical pencil having a rotatable wheel for advancing lead |
| CN200988365Y (en) * | 2006-09-29 | 2007-12-12 | 田玉国 | Rear-rotating telescopic propelling pencil |
| CN201009560Y (en) * | 2007-03-16 | 2008-01-23 | 肖清 | Mechanical propelling pencil |
| JP2012030426A (en) * | 2010-07-29 | 2012-02-16 | Pilot Corporation | Mechanical pencil |
-
2013
- 2013-01-09 CN CN201310007293.1A patent/CN103042863B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2604693A (en) * | 1951-01-05 | 1952-07-29 | Schierstead Alfred | Dental finishing tool |
| JP2001260588A (en) * | 2000-03-14 | 2001-09-25 | Kokuyo Co Ltd | Extension pencil |
| JP2004130765A (en) * | 2002-10-07 | 2004-04-30 | Yuji Makita | Knock type mechanical pencil with lead usable to end |
| JP2005297505A (en) * | 2004-04-16 | 2005-10-27 | Pilot Precision Co Ltd | Mechanical pencil |
| US7097375B1 (en) * | 2005-12-20 | 2006-08-29 | Jakks Pacific, Inc. | Mechanical pencil having a rotatable wheel for advancing lead |
| CN200988365Y (en) * | 2006-09-29 | 2007-12-12 | 田玉国 | Rear-rotating telescopic propelling pencil |
| CN201009560Y (en) * | 2007-03-16 | 2008-01-23 | 肖清 | Mechanical propelling pencil |
| JP2012030426A (en) * | 2010-07-29 | 2012-02-16 | Pilot Corporation | Mechanical pencil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440051A (en) * | 2013-07-26 | 2013-12-11 | 张晶 | Stylus pen |
| CN103440051B (en) * | 2013-07-26 | 2017-06-27 | 张晶 | Stylus |
| CN106585182A (en) * | 2016-12-26 | 2017-04-26 | 孟红琳 | Mechanical pencil for preventing pencil lead break |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103042863B (en) | 2015-01-14 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 |