WO2005100045A1 - Stylo a bille a cognement avant - Google Patents

Stylo a bille a cognement avant Download PDF

Info

Publication number
WO2005100045A1
WO2005100045A1 PCT/KR2004/001833 KR2004001833W WO2005100045A1 WO 2005100045 A1 WO2005100045 A1 WO 2005100045A1 KR 2004001833 W KR2004001833 W KR 2004001833W WO 2005100045 A1 WO2005100045 A1 WO 2005100045A1
Authority
WO
WIPO (PCT)
Prior art keywords
knock
cap
cam
barrel
refill
Prior art date
Application number
PCT/KR2004/001833
Other languages
English (en)
Inventor
Bon-Chun Koo
Original Assignee
Bon-Chun Koo
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 Bon-Chun Koo filed Critical Bon-Chun Koo
Publication of WO2005100045A1 publication Critical patent/WO2005100045A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/12—Ball-point pens with retractable ball points
    • 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
    • B43K24/084—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 with saw-like or analogous cams
    • 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
    • B43K24/026—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions with a sleeve sliding on the forward end of the lead
    • 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
    • B43K24/088—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 with spreading spring means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K25/00—Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
    • B43K25/02—Clips
    • B43K25/022—Clips attached to a pen cap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/005—Pen barrels

Definitions

  • the present invention relates to a front-knoc type ball-point pen, and more particularly, to a front-knock type ball-point pen used when studying or conducting paperwork, which is constructed in a way such that a writing tip of a refill comprising an ink container-tube can be extended out of and retracted into a barrel by pressing a front portion of the ball-point pen without the need of changing a gripping state of the fingers using the ball-point pen, thereby providing user convenience, and such that a user can enjoy the feeling of a slightly springy writing tip.
  • a device for extending and retracting a writing tip of a ball-point pen out of and into a barrel In this device, a front cap is coupled to a front end of the barrel, and knock-engagement projections are formed on a circumferential inner surface of the front cap. A knock cam and a rotation cam are provided in the front cap to be moved upward and downward through the knock-engagement projections. When the rotation cam is pressed, the knock cam is knocked on the knock-engagement projections. In this way, by pressing a front portion of the rotation cam, it is possible to extend and retract the writing tip of the ballpoint pen out of and into the front cap, that is, barrel.
  • the device suffers from defects in that, since the rotation cam must be pressed to a position of a front end of the front cap to extend the writing tip out of the front cap, when the rotation cam is pressed like this, ink on the writing tip is likely to be unintentionally conveyed to paper.
  • the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a front-knock type ball-point pen, wherein a writing tip of a refill can be extended out of and retracted into a barrel only by slightly pressing a front portion of the ball-point pen while it is possible to prevent ink on the writing tip from being unintentionally conveyed to paper, and a user is permitted to enjoy a comfortable writing feel with the aid of a cushioned writing action of the ballpoint pen.
  • a front-knock type ball-point pen wherein a writing tip of a refill can be extended out of and retracted into a barrel only by slightly pressing a front portion of the ball-point pen while it is possible to prevent ink on the writing tip from being unintentionally conveyed to paper, and a user is permitted to enjoy a comfortable writing feel with the aid of a cushioned writing action of the ballpoint pen.
  • ⁇ point pen having both ends to which a front cap and a rear cap are respectively coupled, and including a barrel in which a knock cam and a rotation cam are provided so that, every time the knock cam is pressed, lockers of the rotation cam are repeatedly engaged on and disengaged from knock- engagement projections formed on a circumferential inner surface of the barrel, to reciprocate a refill in a lengthwise direction of the barrel to thereby extend and retract a writing tip of the refill out of and into the barrel, the pen comprising: a knock cap received in the front cap, formed on a circumferential inner surface thereof with a pair of rectangular coupling protrusions, and defined at one end thereof with a writing tip extending and retracting part and at the other end thereof with a plurality of engagement grooves; a return spring placed in the knock cap to bias the knock cap in a direction in which the writing tip extending and retracting part of the knock cap projects out of the front cap; a knock cam formed on a circumferential outer surface thereof with engagement prominences which are engaged in the
  • FIG. 1 is an exploded perspective view illustrating a front-knock type ball-point pen in accordance with an embodiment of the present invention
  • FIG. 2 is a cross-sectional view illustrating an assembled state of the front-knock type ball-point pen according to the embodiment of the present invention
  • FIGs. 3 through 5 are partial cross-sectional views illustrating operations of the front-knock type ball-point pen according to the embodiment of the present invention.
  • FIG. 1 is an exploded perspective view illustrating a front-knock type ball-point pen in accordance with an embodiment of the present invention
  • FIG. 2 is a cross- sectional view illustrating an assembled state of the front- knock type ball-point pen according to the embodiment of the present invention.
  • a front-knock type ball-point pen in accordance with an embodiment of the present invention includes a barrel 10 which comprises an elongated cylindrical body.
  • Knock- engagement projections 1,1 are formed on a circumferential inner surface of the barrel 10, and a knock cam 20 and a rotation cam 30 are installed in the barrel 10.
  • a front cap 60 and a rear cap 90 are coupled to both ends, respectively, of the barrel 10. Knocking operations of the knock-engagement projections 11, knock cam 20 and rotation cam 30 are well known in the art .
  • the knock-engagement projections 11 are formed on the circumferential inner surface adjacent to a front end of the barrel 10.
  • Inclined surfaces 12 are formed at rear ends of the knock-engagement projections 11.
  • the front cap 60 and the rear cap 90 are coupled to both ends on a circumferential outer surface of the barrel 10. It is preferred that the front cap 60 and the rear cap 90 are threadedly coupled to both ends of the barrel 10.
  • the knocking operations are implemented in a manner such that the knock cam 20 and the rotation cam 30 are engaged between the knock-engagement projections 11 to be reciprocated or rotated.
  • the knock cam 20 is inserted into and from a rear end of the barrel 10 and has a hollow configuration.
  • a plurality of engagement prominences 26 are formed on a circumferential outer surface of and at a predetermined separation from a front end of the knock cam 20.
  • a plurality of movement projections 21 are formed on the circumferential outer surface at a rear end of the knock cam 20.
  • the rear end of the knock cam 20 defines a saw-toothed edge 23 which is to be meshed with lockers 33 of the rotation cam 30.
  • three engagement prominences 26 of the knock cam 20 are formed to be spaced apart one from another by an angle of 120°.
  • the rotation cam 30 is inserted through the knock cam 20 in a manner such that a front end of the rotation cam 30 emerges out of the front end of the knock cam 20.
  • the rotation cam 30 also has a hollow configuration.
  • a pair of coupling grooves 34 are defined at the front end of the rotation cam 30, and the lockers 33 are projectedly formed on a circumferential outer surface at a rear end of the rotation cam 30.
  • the lockers 33 of the rotation cam 30 are formed to be spaced apart one from another by an angle of 120°.
  • the lockers 33 are rotated by a predetermined angle due to the presence of the inclined surfaces 12 of the knock-engagement projections 11, and coupling protrusions 54 of the knock cap 50 are respectively coupled into the coupling grooves 34 to allow the knock cap 50 to be rotated integrally with the rotation cam 30.
  • a return spring 40 is placed in the knock cap 50.
  • the return spring 40 is inserted toward the front end of the barrel 10 in a manner such that a rear end of the return spring 40 is seated on a front end surface of the rotation cam 30 and a front end of the return spring 40 is seated on a circumferential inner surface of the knock cap 50, to bias the knock cap 50 in a direction in which a writing tip extending and retracting part 55 of the knock cap 50 projects out of the front cap 60.
  • the knock cap 50 is inserted into and from the front end of the barrel 10.
  • a pair of elongate coupling protrusions 54 are formed on the circumferential inner surface of the knock cap 50.
  • the engagement grooves 56 are defined at a rear end of the knock cap 50 to be spaced apart one from another by an angle of 120°.
  • a front end of the knock cap 50 forms the writing tip extending and retracting part 55 which can project out of the front cap 60.
  • the coupling protrusions 54 of the knock cap 50 are respectively coupled into the coupling grooves 34 of the rotation cam 30.
  • the pair of coupling protrusions 54 are formed in a manner such that the return spring 40 can be inserted between the coupling protrusions 54 and rear ends of the coupling protrusions 54 are not brought into contact with a front end surface of the knock arm 20. If the engagement prominences 26 are engaged into the engagement grooves 56, the knock cam 20 and the rotation cam 30 are moved forward to reach front ends of the knock- engagement projections 11.
  • the lockers 33 of the rotation cam 30 and the saw-toothed edge 23 of the knock cam 20 are positioned on the inclined surfaces 12 of the knock-engagement projections 11 to effect a knocked state.
  • the knocked state can be released.
  • the front cap 60 is locked to the front end of the barrel 10.
  • a circumferential inner surface of the front cap 60 is formed in a manner such that the knock cap 50 can be received in the front cap 60. It is preferred that a thread is formed on the circumferential inner surface at a rear end of the front cap 60 to allow coupling of the front cap 60 to the barrel 10.
  • a refill 70 comprising an ink container-tube is inserted into and from the rear end of the barrel 10.
  • the refill 70 is inserted through the rotation cam 30, and is formed at a middle portion thereof with a first protuberance 77a which is brought into contact with a rear end surface of the rotation cam 30.
  • the refill 70 is further formed adjacent to a rear end thereof with a second protuberance 77b which functions to support a knock spring 80.
  • the rear end of the refill 70 is inserted into a support part 97 of the rear cap 90.
  • the knock spring 80 is fitted around and from the rear end of the refill 70 in a manner such that a front end thereof is seated against the second protuberance 77b and the rear end thereof is seated against the support part 97 of the rear cap 90, to forwardly bias the refill 70.
  • the rear cap 90 is coupled to the rear end of the barrel 10, and formed on an inner surface thereof with the support part 97 in which the rear end of the refill 70 is movably inserted. It is preferred that a thread is formed on a circumferential inner surface at a front end of the rear cap 90 to allow coupling of the rear cap 90 to the barrel 10.
  • a clip 98 is formed on a circumferential outer surface of the rear cap 90 to improve portability of the ball-point pen.
  • FIG. 3 is a cross- sectional view illustrating main component elements in a state wherein a writing tip of the refill 70 is extended out of the writing tip extending and retracting part 55 of the knock cap 50.
  • the engagement prominences 26 of the knock cam 20 are engaged into the engagement grooves 56 of the knock cap 50 to extend the writing tip of refill 70 out of the writing tip extending and retracting part 55.
  • FIG. 4 is a cross-sectional view illustrating the main component elements in a state wherein the writing tip extending and retracting part 55 of the knock cap 50 and the writing tip of the refill 70 are retracted into the front cap 60.
  • the writing tip extending and retracting part 55 of the knock cap 50 and the writing tip of the refill 70 are retracted into the front cap 60.
  • the knock cam 20 and the rotation cam 30 are moved upward by the knock cap 50.
  • FIG. 5 is a cross-sectional view illustrating the main component elements in a state wherein the lockers 33 of the rotation cam 30 are knocked to retract the writing tip into the writing tip extending and retracting part 55, and the writing tip extending and retracting part 55 of the knock cap 50 projects out of the front cap 60 to protect the writing tip of the refill 70.
  • the writing tip extending and retracting part 55 of the knock cap 50 projects out of the front cap 60 by the elastic force of the return spring 40.
  • the rotation cam 30 is rotated in a predetermined direction by the lockers 33 and the inclined surfaces 12 of the barrel 10, and the knock cam 20 is also rotated in the same direction as the rotation cam 30.
  • the engagement prominences 26 are positioned on the rear end surface 59 of the knock cap 50.
  • the writing tip of the refill 70 is retracted into the writing tip extending and retracting part 55. If the rotation cam 30 is released from the knocked state, the writing tip of the refill 70 is extended out of the writing tip extending and retracting part 55.
  • the engagement prominences 26 move the knock cam 20 and the rotation cam 30 upward, and then, as the rotation cam 30 is rotated by the predetermined angle by the inclined surfaces 12, the knocked state is released.
  • the engagement prominences 26 are engaged into the engagement grooves 56, respectively, whereby the knock cam 20 and the rotation cam 30 are moved downward to extend the writing tip of the refill 70 out of the writing tip extending and retracting part 55.
  • the front-knock type ball-point pen according to the present invention can be applied to a various kinds of ball-point pens and modified in its construction in a diversity of ways to apply the present invention to the various kinds of ball- point pens .
  • the front- knock type ball-point pen provides advantages in that a writing tip of a refill can be quickly extended out of a barrel only by slightly pressing a front portion of the ball-point pen in a ready-to-write state. Therefore, user convenience is provided since ink on the writing tip is prevented from being unintentionally conveyed to surrounding objects. Also, because a predetermined degree of elasticity is always applied to the refill, the ball-point pen is convenient to use even in a jolting vehicle or during walking with the aid of a cushioned writing action of the ball-point pen. Further, by the cushioned writing action of the ball-point pen, a user can enjoy a comfortable writing feel even when taking notes for an extended period of time.

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

L'invention concerne un stylo à bille à cognement avant. Un capuchon à cognement est reçu dans le capuchon avant, formé de protubérances de liaison et défini par une partie d'extension et de retrait de pointe d'écriture et par des rainures d'introduction. Un ressort de rappel est placé dans le capuchon à cognement afin d'orienter le capuchon à cognement dans un sens dans lequel la partie d'extension et de retrait de pointe d'écriture fait saillie depuis un capuchon avant. Une came à cognement présente des protubérances qui viennent en prise avec les rainures d'introduction ou avec l'autre surface d'extrémité du capuchon à cognement et est dotée d'un rebord en dents de scie. Une came de rotation est installée dans la came à cognement, définie par des rainures de liaison dans lesquelles les protubérances de liaison du capuchon à cognement sont reliées, et formée par des éléments de verrouillage qui viennent en prise avec des protubérances d'introduction par cognement formées sur une surface interne de circonférence d'un cylindre. Un ressort à cognement est positionné sur l'extrémité arrière du remplissage.
PCT/KR2004/001833 2004-04-16 2004-07-22 Stylo a bille a cognement avant WO2005100045A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20-2004-0010590U KR200356696Y1 (ko) 2004-04-16 2004-04-16 전방녹크식 볼펜
KR20-2004-0010590 2004-04-16

Publications (1)

Publication Number Publication Date
WO2005100045A1 true WO2005100045A1 (fr) 2005-10-27

Family

ID=35149860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/001833 WO2005100045A1 (fr) 2004-04-16 2004-07-22 Stylo a bille a cognement avant

Country Status (2)

Country Link
KR (1) KR200356696Y1 (fr)
WO (1) WO2005100045A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110239261A (zh) * 2019-06-24 2019-09-17 文成县简创科技有限公司 一种错位卡扣压缩笔
CN110239260A (zh) * 2019-06-24 2019-09-17 文成县简创科技有限公司 一种错位内旋笔
WO2021012840A1 (fr) * 2019-07-22 2021-01-28 文成县简创有限公司 Stylo télescopique
CN113306330A (zh) * 2021-06-02 2021-08-27 杭州简弈科技有限公司 一种精密式复位机芯

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101947819B1 (ko) 2018-12-13 2019-02-14 어명혁 노크식 필기구

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR810001229Y1 (en) * 1979-07-04 1981-09-24 Jung Shik Choi Projecting and locking mechanism for ball-point pen nibs
US5263786A (en) * 1991-10-17 1993-11-23 Kotobuki & Co., Inc. Rotary-cam ball-point pen
JP2000094883A (ja) * 1998-09-24 2000-04-04 Kotobuki:Kk 筆記具
KR200293723Y1 (ko) * 2002-05-20 2002-10-31 송현준 측방노크식볼펜
KR20040049440A (ko) * 2002-12-06 2004-06-12 주식회사 모리스 펜심 노크식 필기구

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR810001229Y1 (en) * 1979-07-04 1981-09-24 Jung Shik Choi Projecting and locking mechanism for ball-point pen nibs
US5263786A (en) * 1991-10-17 1993-11-23 Kotobuki & Co., Inc. Rotary-cam ball-point pen
JP2000094883A (ja) * 1998-09-24 2000-04-04 Kotobuki:Kk 筆記具
KR200293723Y1 (ko) * 2002-05-20 2002-10-31 송현준 측방노크식볼펜
KR20040049440A (ko) * 2002-12-06 2004-06-12 주식회사 모리스 펜심 노크식 필기구

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110239261A (zh) * 2019-06-24 2019-09-17 文成县简创科技有限公司 一种错位卡扣压缩笔
CN110239260A (zh) * 2019-06-24 2019-09-17 文成县简创科技有限公司 一种错位内旋笔
WO2021012840A1 (fr) * 2019-07-22 2021-01-28 文成县简创有限公司 Stylo télescopique
CN113306330A (zh) * 2021-06-02 2021-08-27 杭州简弈科技有限公司 一种精密式复位机芯
CN113306330B (zh) * 2021-06-02 2023-11-10 温州市简系文具有限公司 一种精密式复位机芯

Also Published As

Publication number Publication date
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