CN103042863B - Pulsation type mechanical pencil - Google Patents
Pulsation type mechanical pencil Download PDFInfo
- Publication number
- CN103042863B CN103042863B CN201310007293.1A CN201310007293A CN103042863B CN 103042863 B CN103042863 B CN 103042863B CN 201310007293 A CN201310007293 A CN 201310007293A CN 103042863 B CN103042863 B CN 103042863B
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- core
- refill
- pencil
- passage
- type mechanical
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- 230000010349 pulsation Effects 0.000 title claims abstract description 27
- 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
- 239000000203 mixture Substances 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, particularly relate to a kind of Pulsation type mechanical pencil.
Background technology
Propelling pencil, also known as mechanical pencil, Black lead writing appliance or propelling pencil, is a kind of pencil mechanically operated.Because it can refill, do not need to cut plane pencil, very convenient, popularity is high.
Propelling pencil is divided into thick core (being greater than 0.9mm) and thin core (being less than 0.9mm) propelling pencil according to pencil-lead diameter.Can be divided into according to 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 rotating conveying lead for retractable pencil; Pulsating (knock-type) is by pressing conveying lead for retractable pencil; Automatic compensation type does not need to rotate or palsating equipment, can auto-compensation lead for retractable pencil, continuous writing.
The cassette mechanism structure of pulsating is the basic structure form that propelling pencil generally adopts, primarily of compositions such as pen container, nib, retaining core pipe, dop, locking strap, springs.When core storage tube acts on by pressing pressure (finger pressure), the elastic force overcoming spring moves down, and dop calvus is opened, and lead for retractable pencil relies on the gravity of self simultaneously, leaves the origin-location in core storage tube, moves forward certain length.After pressing earth pressure release, spring sets back, and lead for retractable pencil is held tightly by dop calvus, and locking strap and retaining core pipe auto lock location, complete knockout process of once pulsing.According to this back and forth can 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; Secondary knock-type, namely pressing connects core pipe and stretches out penholder first time, and second time pressing lead for retractable pencil stretches out; Double card head knock-type, adopts double card header structure, shortens dop and connect the distance between core tube end, makes one section of residual core of last 8 remaining ~ 15mm in propelling pencil, can go out a whole lead for retractable pencil and be ejected, get final product continuous writing without pressing.
But double clip head mechanical propelling pencil is due to dop and connect between core pipe and still have certain distance, sending in plumbous process, if dop is given a shock, lead for retractable pencil does not below overlap with lead for retractable pencil above, and lead for retractable pencil below just can not be sent smoothly, and residual core above still cannot 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, the cylinder cap for brush removably connecting this cylinder front end, a pig inserted in this cylinder, one to be combined with pig and to be used for plumbous to plumbous dop, give the casing cushion on plumbous dop for one, and one be combined with this casing cushion hold plumbous dop.Containing hold plumbous dop and casing cushion hold plumbous unit and containing can contact with each other in the cylinder cap for brush to plumbous unit to plumbous dop and sleeve pipe.
This double clip head mechanical propelling pencil complex structure, poor controllability, arbitrarily cannot regulate to be used to the residual core of different length.
Summary of the invention
The invention provides a kind of pulsating pencil, this Pulsation type mechanical pencil effectively can utilize the residual core of the final stage of lead for retractable pencil.
Technical scheme of the present invention is:
A kind of Pulsation type mechanical pencil, comprise pen container and the nib of threaded engagement, with crossing core passage in described nib, the knockout end crossing core passage is provided with and connects core pipe, be provided with core storage tube in described pen container, core storage tube outside is arranged with locking strap and retaining core pipe successively, and described nib offers radial through installing hole, this installing hole is built with shifting disc, and this shifting disc is with the internal thread hole corresponding with crossing core channel position;
In described internal thread hole, threaded engagement has the residual core chuck along crossing the slip of core passage, and this residual core chuck is crossing core passage inner circumferential location, one end of described residual core chuck axis is provided with flexible residual core jaw, and the described inner wall belt crossing core passage has the guiding step drawn in for extruding residual core jaw.
Described retaining core pipe is towards one end of nib with flanging, and the side of this flanging nib dorsad, against the end face of pen container, for fixing core storage tube, makes it arbitrarily to rock in pen container.Described retaining core pipe inwall has abutted spring with between core storage tube outer wall, and core storage tube is towards the elastic dop in one end of nib.Spring plays springing, is linked closely locking strap in the end of retaining core pipe.
When lead for retractable pencil is longer, apply pressure to core storage tube, described locking strap and retaining core pipe, against nib, make spring contraction, dop opens, and lead for retractable pencil moves forward, after earth pressure release, namely lead for retractable pencil is held tightly by described dop, and locking strap and retaining core pipe auto lock location, complete knockout process of once pulsing.According to this back and forth can continuous pulsation knockout.
When the length of lead for retractable pencil is because being less than described dop and connecing the distance between core pipe, described dop cannot hold lead for retractable pencil tightly, is unfavorable for writing.Therefore, Pulsation type mechanical 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 matched with internal thread hole, and described residual core jaw has two at least, is fixed on sleeve pipe towards the one end connecing core pipe.
When lead for retractable pencil uses last segment, manual rotation shifting disc, the external screw thread of sleeve pipe coordinates with internal thread hole, and residual core chuck slides along crossing core passage to the direction connecing core pipe, and guiding step extrudes residual core jaw and makes it to draw in, clamping lead for retractable pencil.
For exempting from residual core chuck circumference rotation thereupon when shifting disc rotates, described residual core chuck circumference was positioned in 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 crossing core passage is provided with the positioning runner coordinated with circumferential positioning key.So can ensureing that residual core chuck can only slide axially along crossing core passage, realizing the clamping of the different length lead for retractable pencil to remnants.
For making guiding step extrude residual core jaw smoothly, described guiding step has the compressive plane matched 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 slide downward.
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.
For there is skidding when exempting from 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 shifting disc.
Rock in installing hole for exempting from shifting disc, preferably, described installing hole to recline shifting disc at nib two opposite faces axially.The thickness of shifting disc is with the distance described in infinite approach between two opposite faces 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, described installing hole is provided with the positioning convex for limiting shifting disc outer fringe position at nib two opposite faces axially.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, first connect described the knockout end that core pipe was fixed on core passage; Described shifting disc is embedded in the installing hole of nib again, between the positioning convex outer rim of shifting disc being stuck in installing hole; Finally described residual core chuck is screwed in the internal thread hole of shifting disc, and make the circumferential positioning key outside residual core jaw embed in the positioning runner of core vias inner walls; Nib and pen container are screwed, is namely assembled into Pulsation type mechanical pencil of the present invention.
During use, pressing propelling pencil press pen, apply pressing active force to core storage tube, 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 from connect core pipe stretch out the length of enough writing time, 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 continuous pulsation knockout according to this; When lead for retractable pencil uses last segment, when cannot be held tightly by described dop, then manual by suitable for lead for retractable pencil pull-out length of writing, and rotate described shifting disc, residual core chuck is slided along crossing core passage to the direction connecing core pipe, and described guiding step extrudes residual core jaw and makes it to draw in, clamping lead for retractable pencil; When rotary dial dish still cannot clamp lead for retractable pencil, then reversely rotate shifting disc, residual core chuck is slided to the direction of pen container, and residual core jaw opens, and changes lead for retractable pencil.
Compared with prior art, beneficial effect of the present invention is:
Pulsation type mechanical pencil of the present invention can easily and effectively utilize the residual core of the final stage of pencil-lead, economizes on resources, cuts the waste.
Accompanying drawing explanation
Fig. 1 is the structural representation of Pulsation type mechanical pencil of the present invention.
Detailed description of the invention
Pulsation type mechanical 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 pen container 1, core storage tube 3 outside is arranged with locking strap 6 and retaining core pipe 4 successively.
As seen from Figure 1, retaining core pipe 4 towards nib 2 one end with flanging 41, this flanging 41 dorsad nib 2 side against the end face of pen container 1, for fixing core storage tube 3, make it arbitrarily to rock in pen container 1.
Also abutted spring 31 between retaining core pipe 4 inwall with core storage tube 3 outer wall, core storage tube 3 is towards the elastic dop 32 in one end of nib 2.Spring 31 plays springing, is linked closely locking strap 6 in the end of retaining core pipe 4.
When lead for retractable pencil 10 is longer, apply pressure to core storage tube 3, locking strap 6 and retaining core pipe 4 are against nib 2, and spring 31 is shunk, and dop 32 opens, and lead for retractable pencil 10 moves forward; After earth pressure release, namely lead for retractable pencil 10 is held tightly by dop 32, and locking strap 6 and retaining core pipe 4 auto lock location, complete knockout process of once pulsing.According to this back and forth can continuous pulsation knockout.
But when lead for retractable pencil 10 uses last segment, dop 32 cannot hold lead for retractable pencil 10 tightly.For effectively utilizing last segment of lead for retractable pencil 10, Pulsation type mechanical pencil of the present invention has done improvement in nib 2.
As seen from Figure 1, with crossing core passage 24 in nib 2, the knockout end crossing core passage 24 is provided with and connects core pipe 9; Nib 2 offers radial through installing hole 21, and this installing hole 21 is built with shifting disc 7, and this shifting disc 7 is with the internal thread hole corresponding with crossing core passage 24 position; In internal thread hole, threaded engagement has the residual core chuck 8 along crossing the slip of core passage 24, and this residual core chuck 8 is crossing core passage 24 inner circumferential location.
Residual core chuck 8 comprises the sleeve pipe 83 of inwall and lead for retractable pencil 10 matched in clearance, and this sleeve pipe 83 outer wall is provided with the external screw thread matched with internal thread hole; At sleeve pipe 83 towards the one end connecing core pipe 3, be also fixed with residual core jaw 81; Residual core jaw 81 has two at least, and has elasticity.
When the length of lead for retractable pencil 10 is because being less than dop 32 and the distance that connects between core pipe 9 and can not being held tightly by dop 32, manual rotation shifting disc 7, the residual core chuck 8 coordinated with the internal thread hole of shifting disc 7 slides along crossing core passage 24 to the direction connecing core pipe 9, makes sleeve pipe 83 entangle lead for retractable pencil 10.
For making residual core jaw 81 be clamped by lead for retractable pencil 10, cross the inwall of core passage 24 with guide table rank 25, guiding step 25 extrudes residual core jaw 81 and makes it to draw in, clamping lead for retractable pencil 10.
For making the guiding step 25 residual core jaw 81 of extruding smoothly, guiding step 25 has the compressive plane matched 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 slide downward.
Match with the compressive plane of guiding step 25, the end of residual core jaw 81 is rounding.Residual core chuck 8 so can be made to slide axially more smooth and easy in core passage 24 crossing, avoid producing unnecessary colliding with and rubbing.
For exempting from residual core chuck 8 circumference rotation thereupon when shifting disc 7 rotates, residual core chuck 8 is that circumference was positioned in core passage 24.The mode of circumference location is preferably: the outer wall of residual core jaw 81 is provided with along the axial arranged circumferential positioning key 82 of nib 2, and the inwall crossing core passage 24 is provided with the positioning runner (omitting in figure) coordinated with circumferential positioning key 82.So can ensureing that residual core chuck 8 can only slide axially along crossing core passage 24, realizing the clamping of the different length lead for retractable pencil 10 to remnants.
For there is skidding when exempting from manual rotation shifting disc 7, the outer circumference surface of shifting disc 7 is with anti-skidding striped (omitting in figure).To increase the coefficient of friction between writer's finger and shifting disc 7.
Rock in installing hole 21 for exempting from shifting disc 7, preferably, installing hole 21 is at nib 2 two opposite faces axially, and namely opposite face 22 and opposite face 23 recline shifting disc 7.The thickness of shifting disc 7 is with the distance between infinite approach two opposite faces 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 the positioning convex (omitting in figure) for limiting shifting disc 7 outer fringe position on nib 2 two opposite faces 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, first will connect core pipe 9 and be fixed on the knockout end of core passage 24; Again shifting disc 7 is embedded in the installing hole 21 of nib 2, between the positioning convex outer rim of shifting disc 7 being stuck in installing hole 21; Finally residual core chuck 8 is screwed in the internal thread hole of shifting disc 7, and make the circumferential positioning key 82 on residual core jaw 81 outer wall embed in the positioning runner of core passage 24 inwall; Nib 2 and pen container 1 are screwed, is namely assembled into Pulsation type mechanical pencil of the present invention.
During use, pressing propelling pencil by pen (omitting in figure), apply pressing active force to core storage tube 3, the elastic force that core storage tube 3 overcomes spring 31 moves down, and dop 32 is opened, simultaneously lead for retractable pencil 10 moves forward, when lead for retractable pencil 10 from connect core pipe 9 stretch out the length of enough writing time, 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 lock location, back and forth get final product continuous pulsation knockout according to this; When lead for retractable pencil 10 uses last segment, when cannot be held tightly by dop 32, then manually lead for retractable pencil 10 is pulled out suitable length of writing, and rotary dial dish 7, residual core chuck 8 is slided along crossing core passage 24 to the direction connecing core pipe 9, and guiding step 25 extrudes residual core jaw 81 and makes it to draw in, clamping lead for retractable pencil 10; When rotary dial dish 7 still cannot clamp lead for retractable pencil 10, then reversely rotate shifting disc 7, residual core chuck 8 is slided along crossing core passage 24 to the direction of pen container 1, and residual core jaw 81 opens, and changes lead for retractable pencil 10.
Claims (8)
1. a Pulsation type mechanical pencil, comprise pen container (1) and the nib (2) of threaded engagement, with crossing core passage (24) in described nib (2), the knockout end crossing core passage (24) is provided with and connects core pipe (9), core storage tube (3) is provided with in 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 radial through installing hole (21), this installing hole (21) is built with shifting disc (7), this shifting disc (7) is with the internal thread hole corresponding with crossing core passage (24) position,
In described internal thread hole, threaded engagement has the residual core chuck (8) slided along mistake core passage (24), and this residual core chuck (8) is crossing core passage (24) inner circumferential location, one end that described residual core chuck (8) is axial is provided with flexible residual core jaw (81), and the described inner wall belt crossing core passage (24) has the guiding step (25) drawn in for extruding residual core jaw (81).
2. Pulsation type mechanical 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 matched with internal thread hole, described residual core jaw (81) has two at least, is fixed on sleeve pipe (83) towards the one end connecing core pipe (3).
3. Pulsation type mechanical pencil as claimed in claim 2, it is characterized in that, the outer wall of described residual core jaw (81) is provided with along the axial arranged circumferential positioning key (82) of nib (2), and the described inwall crossing core passage (24) is provided with the positioning runner coordinated with circumferential positioning key (82).
4. Pulsation type mechanical pencil as claimed in claim 1, it is characterized in that, described guiding step (25) has the compressive plane matched with residual core jaw (81), and this compressive plane is 20 ~ 40 degree with the angle of nib (2) axis.
5. the Pulsation type mechanical pencil as described in as arbitrary in Claims 1 to 4, it is characterized in that, the end of described residual core jaw (81) is rounding.
6. Pulsation type mechanical pencil as claimed in claim 5, it is characterized in that, the outer circumference surface of described shifting disc (7) is with anti-skidding striped.
7. Pulsation type mechanical pencil as claimed in claim 5, is characterized in that, described installing hole (21) is at nib (2) two opposite faces (22,23) shifting disc that reclines (7) axially.
8. Pulsation type mechanical pencil as claimed in claim 5, it is characterized in that, described installing hole (21) is provided with the positioning convex for limiting shifting disc (7) outer fringe position at nib (2) two opposite faces (22,23) axially.
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 CN103042863A (en) | 2013-04-17 |
| CN103042863B true CN103042863B (en) | 2015-01-14 |
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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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440051B (en) * | 2013-07-26 | 2017-06-27 | 张晶 | Stylus |
| CN106585182B (en) * | 2016-12-26 | 2018-06-15 | 苏忠鹤 | Core-broken propelling pencil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2604693A (en) * | 1951-01-05 | 1952-07-29 | Schierstead Alfred | Dental finishing tool |
| 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 rotary telescopic type mechanical propelling pencil |
| CN201009560Y (en) * | 2007-03-16 | 2008-01-23 | 肖清 | Mechanical propelling pencil |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3783513B2 (en) * | 2000-03-14 | 2006-06-07 | コクヨ株式会社 | Feeding pencil |
| JP2004130765A (en) * | 2002-10-07 | 2004-04-30 | Yuji Makita | Knock type mechanical pencil with lead usable to end |
| JP4476677B2 (en) * | 2004-04-16 | 2010-06-09 | 株式会社パイロットコーポレーション | mechanical pencil |
| JP5489902B2 (en) * | 2010-07-29 | 2014-05-14 | 株式会社パイロットコーポレーション | mechanical pencil |
-
2013
- 2013-01-09 CN CN201310007293.1A patent/CN103042863B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2604693A (en) * | 1951-01-05 | 1952-07-29 | Schierstead Alfred | Dental finishing tool |
| 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 rotary telescopic type mechanical propelling pencil |
| CN201009560Y (en) * | 2007-03-16 | 2008-01-23 | 肖清 | Mechanical propelling pencil |
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| Publication number | Publication date |
|---|---|
| CN103042863A (en) | 2013-04-17 |
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Granted publication date: 20150114 |