EP1339552A1 - Instrument pour ecrire - Google Patents

Instrument pour ecrire

Info

Publication number
EP1339552A1
EP1339552A1 EP01983493A EP01983493A EP1339552A1 EP 1339552 A1 EP1339552 A1 EP 1339552A1 EP 01983493 A EP01983493 A EP 01983493A EP 01983493 A EP01983493 A EP 01983493A EP 1339552 A1 EP1339552 A1 EP 1339552A1
Authority
EP
European Patent Office
Prior art keywords
writing
housing
curve
switching
pusher
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.)
Granted
Application number
EP01983493A
Other languages
German (de)
English (en)
Other versions
EP1339552B1 (fr
Inventor
Andre Hertwig
Wolfgang Nestlen
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.)
C Josef Lamy GmbH
Original Assignee
C Josef Lamy GmbH
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 C Josef Lamy GmbH filed Critical C Josef Lamy GmbH
Publication of EP1339552A1 publication Critical patent/EP1339552A1/fr
Application granted granted Critical
Publication of EP1339552B1 publication Critical patent/EP1339552B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08Mechanisms 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
    • B43K24/086Mechanisms 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 heart-shaped cams, balls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08Mechanisms 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

Definitions

  • the invention relates to a writing instrument according to the features specified in the preamble of claim 1.
  • Such a writing instrument is known from US-A-2 627 843, the housing of which consists of two telescopically slidable parts.
  • a writing lead is arranged in the front part, which can be axially displaced by means of a control unit in such a way that in a first position the lead tip protrudes from the front part for writing and in a second position the lead tip is pushed back into the front part.
  • the control unit contains an axially displaceable and partially rotatable first sleeve, into which the writing lead is clamped and from which the writing lead can be removed if necessary after removing a housing tip.
  • a pin of the front part engages in a short spiral groove in the outer surface of the rotatable control sleeve, so that the first sleeve is axially displaced during rotation and thus the writing lead is displaced into the first or second position.
  • the inside of the rear housing part contains a further sleeve with an axial slot, in which a projection provided at the rear end of the front part engages.
  • the further sleeve of the rear part contains an axially inward directed projection which engages in a long second spiral groove of the control sleeve of the front part.
  • the first sleeve engaging projection of the further sleeve rotatably arranged in the rear part When pushing the front part and the rear part together, the long Spiral groove of the first sleeve engaging projection of the further sleeve rotatably arranged in the rear part, the first sleeve is rotated accordingly, the first sleeve being pushed axially backwards in cooperation with the front short spiral groove and the mine tip being thus retracted into the housing in the second position.
  • the two housing parts are telescopically pushed into one another and the housing has a short overall length.
  • the housing front part and the rear housing part are pulled apart axially, the functions explained above running in opposite directions and the first sleeve together with the writing lead being moved axially forward and the lead tip out the housing is pushed into the first position or writing position.
  • the writing instrument has its maximum length.
  • the handling of the writing instrument is difficult insofar as the two housing parts have to be pulled apart with both hands to set the writing position and the two housing parts have to be pushed into one another with an opposite movement to set the second position.
  • the object of the invention is to further develop the writing instrument with little design effort so that handling is improved.
  • the writing refill should be brought into function or in the writing position with a single movement and the writing instrument itself should be extended.
  • the writing instrument should be able to be operated with one hand in the usual way and in particular be extendable to the size suitable for writing with the same type of movement as for shortening and retracting the writing lead into the rest position. Furthermore, a reliable specification of the two positions of the writing lead should be ensured and undesired actuations should be avoided with a high degree of functional reliability.
  • the writing instrument according to the invention is characterized by a functionally reliable construction and simple handling, the actuation and specification of the two positions being carried out exclusively by pressure movement.
  • the writing instrument contains a control unit which can be actuated by means of a pusher and by means of which the writing lead can be brought either into the writing position or into the retracted position, the extension of the writing instrument for the size suitable for writing or the shortening of the writing instrument for stowing or being synchronized with the respective actuation Storage is carried out.
  • a small writing instrument is thus created which is suitable for stowing and storing in small containers, bags, in particular trouser pockets, notepads, small pocket calendars, small-format diaries or the like.
  • the control unit contains a curve part with two switching curves, preferably arranged one behind the other, in such a way that the writing lead can be brought into the writing position or the retracted position by means of the first switching curve and the second switching curve, the pusher designed as an extension extends out of the housing or returns to the short position.
  • the first switching curve for the writing lead is preferably designed in such a way and in particular as a heart curve that a functionally reliable locking of the writing lead is ensured in the two possible positions.
  • the switching curve for the pusher is preferably designed as an unlocking control cam, the pusher being extended from the locked position in the shortened writing instrument after unlocking, in particular under the action of a spring force into the extended position.
  • the cam part is expediently rotatably and axially displaceably arranged in the housing and, depending on the position, can prevent the lever from moving out or release and unlock it.
  • FIG. 2 is a view of the writing instrument of FIG. 1,
  • FIG. 3 shows the writing instrument in an axial section in the pushed-together second position
  • Fig. 4 is a view of the writing instrument according to. Fig. 3,
  • Fig. 8 - 10 views and a section of the switching sleeve.
  • Fig. 1 shows an axial section through the writing instrument with a housing 2, a writing lead 4 assuming the first position or writing position in which a tip 6 of the writing lead 4 is pushed out of the front end of the housing 2 for writing.
  • a pusher 8 is provided, which in this position has moved out of the housing 2 at the rear end and forms an extension of the housing.
  • the lead tip 6 is guided in a telescopic element 10, which partially protrudes from the front end of the housing 2 in the illustrated writing position.
  • the housing 2 contains an upper part 16, in particular an essentially cylindrical sleeve, preferably made of metal, and a threaded sleeve 18 at the front end thereof, a fixed connection which can be released if required, in particular by means of interlocking threads 20, 21, being provided.
  • the threaded sleeve 18 is surrounded on the outside by a cap 22 provided with an opening at the front end.
  • a switching sleeve 24 is arranged inside the housing 2 or the upper part 16.
  • the switching sleeve 24 is ring-shaped and fixed in the housing 2 and secured in particular in the axial direction.
  • a latching connection is preferably provided, which advantageously has a radially inward projection 26 of the upper part 16.
  • This projection 26 is advantageously annular and engages in an associated recess 28 of the switching sleeve 24, this recess 28 also advantageously being annular.
  • this connection can have a radially outward projection of the switching sleeve, while the housing 2 or the upper part 16 has a corresponding recess.
  • an element 30 is connected to the housing 2 and protrudes beyond the outer surface of the upper part 16 advantageously serves as roll protection of the writing instrument.
  • the switching sleeve 24 contains an extension 32 directed towards the rear end with latching means 34 for connection to corresponding latching means of the element 30 mentioned, the latching means engaging inwards through an opening in the upper housing part 16. A rotation lock of the switching sleeve 24 is thus also achieved by means of the element 30.
  • the switching sleeve 24, which is axially secured against rotation in the housing 2, is part of the control unit already mentioned, as is a curved part 36.
  • the curve part 36 is designed as a sleeve and contains a front cavity 38 and a rear cavity 40, which are separated by an intermediate wall 42. Apart from the lead tip 6, the writing lead 4 is arranged in the front cavity 38, while a compression spring 44 acting on the pusher 8 is at least partially provided in the rear cavity 38.
  • the writing lead 4 is supported on its rear end or an end plug arranged there on the front of the intermediate wall 42.
  • the curve part 36 has a first switching curve 46 on its outer surface, which is designed in particular as a heart curve.
  • the switching sleeve 24 interacts with the switching curve 46 via a coupling element 48.
  • the coupling element 48 engages in the switching or heart curve 46 and is a pin 48 connected to the switching sleeve 24 and directed radially inward.
  • the curve part 36 can be moved axially in the housing 2 and is also rotatable. By axially actuating the pusher 8, always in the same pressure direction according to arrow 50, the writing lead 4 is optionally withdrawn into the first writing position or into the second, by means of the control unit in cooperation with the switching sleeve 24 fixed in the housing 2 and the movable cam part 36 Rest position moved.
  • the pusher can be pulled out without spring force by manually pulling the pusher out of the rear end of the housing, but prior to pushing the tip of the writing lead out of the front end of the housing by pressing the pusher.
  • a geared connection can also be provided, which on the one hand moves the tip of the lead out of the front end and on the other hand the button out of the rear end of the housing after the trigger is actuated.
  • locking elements are also provided, by means of which the handle is secured in the extended position with respect to the housing.
  • the curve part 36 preferably has a second switching curve 52 axially behind the first switching curve 46, via which the control and positioning of the pusher 8 takes place.
  • the pusher 8 contains a guide sleeve 54 and a push button cap 56 surrounding it at least at the rear end, the guide sleeve 54 and the push button cap 56 being firmly and permanently connected to one another, in particular by means of latching elements.
  • the pusher 8 can also be formed in one piece.
  • the compression spring 44 is arranged within the pusher 8 in order to move the pusher 8 into the illustrated extended position and to hold it there.
  • the pusher or the guide sleeve 54 contains a radially inwardly directed element 58, to which a further, namely radially outwardly directed stop element 60 is assigned such that the pusher is fixed in the extended position at the rear end of the writing instrument.
  • the stop element 60 is designed in a particularly expedient manner as a resilient tongue at the rear end of the curve part 36.
  • the housing 2 and the pusher 8 can have stop elements corresponding to one another in order to limit the axial, rearward movement of the pusher 8.
  • the element 58 which is preferably designed as a radially inward projection, engages in the second switching curve 52 of the curve part 36.
  • the second switching curve 52 is designed as a T curve and contains at its front end at least one groove part 62 running in the circumferential direction. If the pusher 8 is pushed forward in the direction of arrow 50 into the housing 2, the element 58 reaches the groove part 52, as a result of a rotation of the cam part 36, a locking of the handle 8 in the inserted position is predetermined.
  • the above-mentioned extension 32 of the switching sleeve 24 secured against rotation in the housing 2 corresponds to an axial groove arranged in the inner surface of the handle 8 in such a way that rotation of the handle 8 is ensured.
  • Fig. 2 shows a view of the writing instrument in the writing position, wherein the pusher 8 is extended out of the housing 2 to extend. Furthermore, the tip 6 and partly also the telescopic element 10 are moved out of the front end of the housing 2 or the cap 22 of the housing 2 arranged there. In this writing position, the writing lead is fixed against axial sliding back into the housing 2 by means of the control unit explained above and in particular the first switching curve designed as a heart curve and the associated switching sleeve.
  • Fig. 3 shows an axial section of the writing instrument in the second position, wherein the pusher 8 is now largely inserted into the housing 2 after a pressure movement in the direction of arrow 50.
  • the cam part 36 is rotated about the longitudinal axis 14 in the interaction of the switching sleeve 24, the coupling element or pin 48 and the first switching curve 46 in such a way that the radially inwardly directed element 58 of the pusher 8 or the guide sleeve 54 engages in the above-described circumferential groove part of the second switching curve 52.
  • the pusher 8 on which the internal compression spring 44 acts in the opposite direction of the arrow 50, is secured against undesired movement out. Since the pusher 8 is also secured against rotation with respect to the housing 2, the pusher 8 remains functionally reliable in the second position shown, as does the tip 6 of the writing lead 4 which is retracted into the housing 2.
  • the writing instrument is shown in Fig. 4 in the collapsed, short second position in a side view.
  • a user takes the housing 2 in his hand in such a way that a pressure movement in the direction of arrow 50 can be carried out in particular by means of the thumb on the pusher 8.
  • the first switching curve is designed as a heart curve and contains a curve part 66 for fixing the writing lead in the extended writing position.
  • the second switching curve 52 is preferably designed as a T-curve and has at least one groove part 62 running in the circumferential direction at the front end in order to hold the handle in the second position pushed into the housing.
  • 8 to 10 show the switching sleeve 24, the latching means 34 being clearly recognizable on the extension 32 according to FIG. 9.
  • the switching sleeve 24 contains an essentially radial opening or bore 68 for receiving the coupling element or pin 48, which engages in the first switching curve of the curve part.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Pens And Brushes (AREA)

Abstract

L'invention concerne un instrument pour écrire comprenant un boîtier (2), une mine (4) disposée mobile à l'intérieur de ce boîtier (2) et une unité de commande permettant de placer la mine (4) dans une première position, dans laquelle la pointe (6) de la mine sort du boîtier (2) pour permettre l'écriture, et dans une seconde position rétractée dans le boîtier, l'instrument pour écrire présentant dans la première position une longueur totale convenant à l'écriture et, dans la seconde position, une longueur plus courte. L'objectif de l'invention est de perfectionner cet instrument, sans modification majeure de construction, de façon à améliorer son maniement de telle sorte que la mine soit mise en position d'écriture et l'instrument lui-même rallongé en un tour de main. A cet effet, on utilise un poussoir (8), conçu en prolongement du boîtier (2), qui peut être actionné pour déplacer la mine (4) aussi bien dans la première que dans la deuxième position, ce poussoir (8) sortant de l'extrémité arrière du boîtier (2) dans la première position.
EP01983493A 2000-12-08 2001-09-22 Instrument pour ecrire Expired - Lifetime EP1339552B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10061316A DE10061316C2 (de) 2000-12-08 2000-12-08 Schreibgerät
DE10061316 2000-12-08
PCT/EP2001/010963 WO2002045974A1 (fr) 2000-12-08 2001-09-22 Instrument pour ecrire

Publications (2)

Publication Number Publication Date
EP1339552A1 true EP1339552A1 (fr) 2003-09-03
EP1339552B1 EP1339552B1 (fr) 2007-02-14

Family

ID=7666436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01983493A Expired - Lifetime EP1339552B1 (fr) 2000-12-08 2001-09-22 Instrument pour ecrire

Country Status (7)

Country Link
US (1) US6832868B2 (fr)
EP (1) EP1339552B1 (fr)
JP (1) JP3949581B2 (fr)
AT (1) ATE353776T1 (fr)
DE (2) DE10061316C2 (fr)
ES (1) ES2280411T3 (fr)
WO (1) WO2002045974A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6921225B1 (en) * 2004-11-02 2005-07-26 Yung-Ching Hsu Structure of a ballpoint pen with extensible closing top
TW201018590A (en) * 2008-11-12 2010-05-16 Spark Gold Co Telescopic writing instrument having improved linkage arrangement
GB2467775A (en) * 2009-02-13 2010-08-18 Richard Colin Thomas Allan Writing instrument
US20110129285A1 (en) * 2009-11-30 2011-06-02 Yu-Yin Liu Retractable pen
DE102010007024B4 (de) * 2010-01-29 2015-01-08 Gebr. Schmidt Fabrik für Feinmechanik GmbH & Co. KG Schreibgerät mit einem Griffstück
US8480323B2 (en) * 2010-04-30 2013-07-09 A.T.X. International, Inc. Expandable writing instrument
CN110303801B (zh) * 2019-07-15 2020-10-09 杭州简弈科技有限公司 一种伸缩笔

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE480018A (fr) * 1947-01-31
DE1461643A1 (de) * 1964-06-27 1969-03-27 Ritter Kg J Kugeldruckmechanik fuer Schreibstifte
US4601599A (en) * 1983-12-27 1986-07-22 Katoh Kinzoku Kogyo Kabushiki Kaisha Ball-point pen
EP0402558A1 (fr) * 1989-06-15 1990-12-19 Giuliana Mongardi Stylo à bille à corps extensible
US6022161A (en) * 1998-06-29 2000-02-08 Choi; Man Soo Variable-length applicator
US6273627B1 (en) * 2000-10-16 2001-08-14 A.T.X. International, Inc. Expandable writing instrument
JP3596607B2 (ja) * 2001-02-09 2004-12-02 加藤金属工業株式会社 伸縮式ボ−ルペン
US6752557B1 (en) * 2003-10-23 2004-06-22 Ming-Jen Hsieh Retractile pen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0245974A1 *

Also Published As

Publication number Publication date
JP3949581B2 (ja) 2007-07-25
ATE353776T1 (de) 2007-03-15
WO2002045974A1 (fr) 2002-06-13
US20040042839A1 (en) 2004-03-04
DE50112048D1 (de) 2007-03-29
ES2280411T3 (es) 2007-09-16
EP1339552B1 (fr) 2007-02-14
DE10061316C2 (de) 2003-07-31
DE10061316A1 (de) 2002-06-20
JP2004524991A (ja) 2004-08-19
US6832868B2 (en) 2004-12-21

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