EP0402558A1 - Stylo à bille à corps extensible - Google Patents

Stylo à bille à corps extensible Download PDF

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Publication number
EP0402558A1
EP0402558A1 EP89830265A EP89830265A EP0402558A1 EP 0402558 A1 EP0402558 A1 EP 0402558A1 EP 89830265 A EP89830265 A EP 89830265A EP 89830265 A EP89830265 A EP 89830265A EP 0402558 A1 EP0402558 A1 EP 0402558A1
Authority
EP
European Patent Office
Prior art keywords
hollow
pen
ball pen
bar
bottom portion
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP89830265A
Other languages
German (de)
English (en)
Inventor
Giuliana Mongardi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP89830265A priority Critical patent/EP0402558A1/fr
Publication of EP0402558A1 publication Critical patent/EP0402558A1/fr
Withdrawn legal-status Critical Current

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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
    • 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 an extensible body ball pen.
  • These extensible writing instruments are generally formed by a cap member covering nearly completely the pen body and which,as the pen is used,­can be engaged with the rear of the pen body,in order to increase the pen length and improve its handling characteristics.
  • Other known pen embodiments comprise a snap driving mechanism,causing the writing point to be projected and withdrawn,without changing in any degree the length of the pen body.
  • the aim of the present invention is to provide a new type of ball pen,having an extensible pen body the length variation of which can be obtained by a quick and easy movement,and which does not include any separate elements to be engaged at the rear of the pen body as an extension thereof.
  • a main object of the present invention is to provide such a ball pen which has a very reduced size,to be easily introduced in a bag,and which, in its use condition has a size which is comparable to that of a conventional ball pen.
  • Another object of the invention is to provide such a ball pen which comprises very simple and reliable operating means and which,moreover,can be made starting from easily available elements and materials, severelyat a very small cost.
  • an extensible body ball pen characterized in that said pen comprises an outer handle pen body housing, in its inside, a bottom portion holding a pen refill and a top portion associated with an outer end portion,said bottom and top portions engaging with a double helical cam element,adapted to cause the bottom portion to translate as the top portion is translated in an opposite direction.
  • the extensible body according to the present invention which has been indicated overally at the reference number 1,comprises a handle or gripping outer body 2 which,as shown in the drawings,­consists of two half bodies 2A and 28 which can be coupled to one another.
  • the body 2 has an outer substantially square shape and is preferably provided,­in its inside,with a cylindrical cavity or hollow indicat­ed at 3.
  • a double helical cam element In the inside of the bottom portion 5 and top portion 6 there is provided a double helical cam element,consisting of a cylindrical bar 10,which is provided with two cylindrical helix slots 11 and 12,­extending from the centre to the periphery and having opposite helix directions.
  • annular recess 13 therein there is engaged an abutment or stop resilient ring member 14,coupled in a corresponding annular groove 15 formed on the inner surface of the cylindrical cavity 3 of the body 2.
  • said resilient ring member 14 is adapted to axially restrain the cylindrical bar 10 to prevent said bar from disengaging.
  • first pin 20 rigid with the bottom portion 5 and a second pin 21,rigid with the top portion 6.
  • the pins 20 and 21 are slidingly hous­ ed in a longitudinal seat 23 which is correspondingly formed in the cylindrical cavity 3.
  • the bottom portion 5 will be automa­tically extended to its writing condition,and the pen body will be brought to a length suitable for an easy handling.
  • a locking notch 30 in which can engage the pin 20,so as to prevent the bar 10 from rotating to retract the portions 5 and 6.

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
EP89830265A 1989-06-15 1989-06-15 Stylo à bille à corps extensible Withdrawn EP0402558A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP89830265A EP0402558A1 (fr) 1989-06-15 1989-06-15 Stylo à bille à corps extensible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89830265A EP0402558A1 (fr) 1989-06-15 1989-06-15 Stylo à bille à corps extensible

Publications (1)

Publication Number Publication Date
EP0402558A1 true EP0402558A1 (fr) 1990-12-19

Family

ID=8203227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830265A Withdrawn EP0402558A1 (fr) 1989-06-15 1989-06-15 Stylo à bille à corps extensible

Country Status (1)

Country Link
EP (1) EP0402558A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002045974A1 (fr) * 2000-12-08 2002-06-13 C. Josef Lamy Gmbh Instrument pour ecrire
EP1838537A1 (fr) * 2005-01-17 2007-10-03 Morris Corporation Instrument d'ecriture de type a vis presentant une fonction de sortie et de retrait
WO2011136873A1 (fr) 2010-04-30 2011-11-03 A.T.X. International, Inc. Instrument d'écriture extensible perfectionné
EP2921316A1 (fr) * 2014-03-18 2015-09-23 Montres Jaquet Droz SA Dispositif portable d'écriture déployable et rétractable
WO2019067612A1 (fr) 2017-09-28 2019-04-04 Sanford, L.P. Instrument d'écriture à coiffe rétractable
JP2019119112A (ja) * 2017-12-28 2019-07-22 株式会社パイロットコーポレーション 筆記具
WO2023120661A1 (fr) * 2021-12-24 2023-06-29 株式会社パイロットコーポレーション Instrument d'écriture
EP4249283A1 (fr) * 2022-03-23 2023-09-27 BIC Violex Single Member S.A. Instruments d'écriture et procédé associé

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE30785C (de) * J. K. STRÖSSEN-REUTHER in Nürnberg Bleistifthalter
US3174461A (en) * 1963-05-02 1965-03-23 Joseph B Pompa Miniaturized extensible and retractable pen
FR1529599A (fr) * 1966-12-02 1968-06-21 Nokass S A R L Soc Dispositif permettant d'effectuer l'avance, le recul d'un organe d'écriture et le changement de celui-ci sans démontage d'une partie du stylo
US4678356A (en) * 1985-07-03 1987-07-07 Garland Thomas N Extendable writing instrument

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE30785C (de) * J. K. STRÖSSEN-REUTHER in Nürnberg Bleistifthalter
US3174461A (en) * 1963-05-02 1965-03-23 Joseph B Pompa Miniaturized extensible and retractable pen
FR1529599A (fr) * 1966-12-02 1968-06-21 Nokass S A R L Soc Dispositif permettant d'effectuer l'avance, le recul d'un organe d'écriture et le changement de celui-ci sans démontage d'une partie du stylo
US4678356A (en) * 1985-07-03 1987-07-07 Garland Thomas N Extendable writing instrument

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002045974A1 (fr) * 2000-12-08 2002-06-13 C. Josef Lamy Gmbh Instrument pour ecrire
US6832868B2 (en) 2000-12-08 2004-12-21 C. Josef Lamy Gmbh Writing implement which lengthens and shortens when actuated
EP1838537A1 (fr) * 2005-01-17 2007-10-03 Morris Corporation Instrument d'ecriture de type a vis presentant une fonction de sortie et de retrait
JP2008526571A (ja) * 2005-01-17 2008-07-24 モリス コーポレーション 操出式伸縮筆記具
EP1838537A4 (fr) * 2005-01-17 2009-11-25 Morris Corp Instrument d'ecriture de type a vis presentant une fonction de sortie et de retrait
EP2563603A4 (fr) * 2010-04-30 2013-10-30 Atx Int Inc Instrument d'écriture extensible perfectionné
CN102947104A (zh) * 2010-04-30 2013-02-27 Atx国际公司 改进的可伸展的书写工具
EP2563603A1 (fr) * 2010-04-30 2013-03-06 A.T.X. International, Inc. Instrument d'écriture extensible perfectionné
EP2774776A1 (fr) * 2010-04-30 2014-09-10 A.T.X. International, Inc. Instrument d'écriture extensible amélioré
CN102947104B (zh) * 2010-04-30 2014-11-05 Atx国际公司 改进的可伸展的书写工具
WO2011136873A1 (fr) 2010-04-30 2011-11-03 A.T.X. International, Inc. Instrument d'écriture extensible perfectionné
EP2921316A1 (fr) * 2014-03-18 2015-09-23 Montres Jaquet Droz SA Dispositif portable d'écriture déployable et rétractable
WO2015139787A1 (fr) * 2014-03-18 2015-09-24 Montres Jaquet Droz Sa Dispositif portable d'écriture déployable et rétractable
EP3676104A4 (fr) * 2017-09-28 2021-05-05 Sanford, L.P. Instrument d'écriture à coiffe rétractable
WO2019067612A1 (fr) 2017-09-28 2019-04-04 Sanford, L.P. Instrument d'écriture à coiffe rétractable
US11148462B2 (en) 2017-09-28 2021-10-19 Sanford, L.P. Retractable nosecone writing instrument
JP2019119112A (ja) * 2017-12-28 2019-07-22 株式会社パイロットコーポレーション 筆記具
KR20200100823A (ko) * 2017-12-28 2020-08-26 가부시키가이샤 파이롯트 코포레이숀 필기구
EP3733426A4 (fr) * 2017-12-28 2021-09-01 Kabushiki Kaisha Pilot Corporation (also trading as Pilot Corporation) Dispositif d'écriture
CN111511574A (zh) * 2017-12-28 2020-08-07 株式会社百乐 书写工具
US11390111B2 (en) 2017-12-28 2022-07-19 Kabushiki Kaisha Pilot Corporation Writing implement
CN115139687A (zh) * 2017-12-28 2022-10-04 株式会社百乐 书写工具
JP2022159343A (ja) * 2017-12-28 2022-10-17 株式会社パイロットコーポレーション 筆記具
TWI785166B (zh) * 2017-12-28 2022-12-01 日商百樂股份有限公司 書寫用具
CN115139687B (zh) * 2017-12-28 2023-11-10 株式会社百乐 书写工具
WO2023120661A1 (fr) * 2021-12-24 2023-06-29 株式会社パイロットコーポレーション Instrument d'écriture
EP4249283A1 (fr) * 2022-03-23 2023-09-27 BIC Violex Single Member S.A. Instruments d'écriture et procédé associé
US11951762B2 (en) 2022-03-23 2024-04-09 BIC Violex Single Member S.A. Writing instrument and method thereof

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