EP0256244B1 - Instrument d'écriture avec mécanisme de pression - Google Patents

Instrument d'écriture avec mécanisme de pression Download PDF

Info

Publication number
EP0256244B1
EP0256244B1 EP87108584A EP87108584A EP0256244B1 EP 0256244 B1 EP0256244 B1 EP 0256244B1 EP 87108584 A EP87108584 A EP 87108584A EP 87108584 A EP87108584 A EP 87108584A EP 0256244 B1 EP0256244 B1 EP 0256244B1
Authority
EP
European Patent Office
Prior art keywords
writing
cup section
permanent magnet
ball
section
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.)
Expired - Lifetime
Application number
EP87108584A
Other languages
German (de)
English (en)
Other versions
EP0256244A1 (fr
Inventor
Bernhard Bruhn
José Navarro-Ramil
Reiner Segebarth
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.)
Rotring International & Co Kg Te Hamburg Bo GmbH
Original Assignee
Rotring Werke Riepe KG
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 Rotring Werke Riepe KG filed Critical Rotring Werke Riepe KG
Priority to AT87108584T priority Critical patent/ATE50206T1/de
Publication of EP0256244A1 publication Critical patent/EP0256244A1/fr
Application granted granted Critical
Publication of EP0256244B1 publication Critical patent/EP0256244B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • B43K24/03—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by flicking or tilting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/24—Pens with writing-points other than nibs or balls characterised by the means for retracting writing-points

Definitions

  • the invention relates to a writing instrument with a pressure mechanism for moving the writing element against spring pressure from a retracted rest position into a forwardly advanced writing position, in which the writing element is held locked against the writing pressure and from which it is displaced from an engagement position with the by moving a locking part Device housing can be returned to the rest position due to spring pressure.
  • the rear end of the writing element which has the shape of a ballpoint pen refill, extends into a blind hole of a locking part on which the clip of the writing instrument is formed.
  • the locking member has a lateral projection which projects into an opening in the device housing so that it locks the writing element in the writing position by engagement with its rear surface with the rear end of the opening, while it engages with a surface lying further forward with the rear End of the opening defines the rest position of the writing element and prevents a movement of the locking part and writing element to the rear out of the device housing.
  • the writing element is under a spring pressure acting to the rear, so that when the projection is released from the locking engagement position with the opening in the device housing by tilting the clip together with the locking part, it is pushed back into the rest position.
  • the user can therefore move the writing element between a locked, forward-shifted writing position and a retracted rest position, as well as from the rest position into the writing position, by correspondingly shifting a locking part by hand.
  • a writing instrument of the type mentioned at the outset is designed in accordance with the invention in such a way that the locking part has a cup section which is open to the rear and whose axial length is greater than its inside diameter and in which a ball of magnetizable material is inserted so as to be freely axially reciprocable , and that a permanent magnet is arranged adjacent to the opening of the cup section, the surface of which facing the cup section has a concavely curved contact surface for the ball which is arranged coaxially with the writing element, the holding force exerted by the permanent magnet on the ball in contact with it being smaller than the weight of the ball is.
  • the locking part In the writing instrument according to the invention there is therefore a specially designed locking part which works by interacting with the permanent magnet or with the contact surface of the permanent magnet and a magnetizable ball.
  • the locking part In order to move the writing instrument from the rest position into the writing position, the locking part is shifted in the usual way so that the writing element moves forward into the writing position and the locking part comes into the locking engagement position with the device housing. Since this is usually done in a substantially vertical position and since the holding force exerted by the permanent magnet on the ball is smaller than the weight of the ball, the ball detaches from the permanent magnet and rests on the bottom of the cup section of the locking part.
  • the ball When storing of the writing instrument on a substantially horizontal surface, the ball is, however, used on the bearing surface of the permanent magnet, being so shifted the cup portion, that the locking part is moved from its Eingr i ffsteiiung to the device housing and the writing element due to spring pressure in the position of rest returns .
  • the opening of the cup section in the engagement part of the locking part is preferably arranged eccentrically with respect to the contact surface of the permanent magnet, and the permanent magnet is arranged, and the permanent magnet can extend into the cup section in the rest position of the writing element.
  • the movement of the ball against the permanent magnet causes the ball, the diameter of which is only slightly smaller than the inside width of the cup section, to align the cup section with respect to the permanent magnet, as a result of which the locking part is then released from its engagement position with the device housing.
  • This position of the cup section in the rest position of the writing element is maintained by the permanent magnet extending into the cup section.
  • the cup section between the eccentric position of its opening with respect to the contact surface of the permanent magnet and the position in which the permanent magnet extends into the cup section can be pivoted about a point on the longitudinal axis of the writing element, so that the Verla tion movement of the cup section is achieved by a very simple structure.
  • a guiding section can be provided on the cup section that overlaps the coupling area with the writing element and prevents lateral movements of the bottom area of the cup section with respect to the writing element.
  • an externally accessible grip section of the locking part can be guided in an opening of the clip so as to be movable in the axial direction, as is also known per se in other writing instruments.
  • a rear surface of the grip section of the locking part can be in locking engagement with a shoulder on the device housing in the engagement position.
  • a tube recorder is constructed in the manner described above, according to the invention, it is expedient to provide a first sealing element in the front end of the device housing, which seals the front end of the writing tube in the rest position of the writing element and through which the writing tube in the writing position of the Extending writing element.
  • the writing instrument shown has a front housing part 1 and a rear housing part 2, which are usually screwed together.
  • a clip 3 is fastened to the rear housing part 2, and a closure cap 14, which carries a button 15, which can serve, for example, as color coding, is captively inserted into the rear end of the housing part 2.
  • the housing there is a schematically indicated tube recorder tip with a cylinder body 5, a writing tube 6 inserted in the front thereof and a cover sleeve 4 which is screwed onto the cylinder body and covers the compensation chamber formed on its outer surface and communicating with the ambient air at the front.
  • a ink cartridge 11 is slipped onto the rear end of the cylinder body in the usual way, and there is a further ink cartridge 12 in the device housing, which rests with its rear end on the rear end of the ink cartridge 11 and with its front end, the insertion end 13 for the cylinder body is aligned behind.
  • a locking part is inserted into it, which has a cup section 18 which is open to the rear and a guide section 19 which adjoins this and extends to the front.
  • the somewhat tapered bottom of the cup section 18 lies against the end face of the insertion end 13 of the cartridge 12, and the guide section 19 surrounds this insertion end.
  • a handle section 20 is formed on the side of the cup section 18 and extends through a lateral opening in the housing part 2 and through an opening 22 in the clip 3 and is thus accessible from the outside.
  • a permanent magnet 16 is inserted in the closure cap 14 coaxially with respect to the longitudinal axis 25 of the tube recorder tip or the device housing, and its front end surface 17 is concavely curved and circularly symmetrical with respect to the longitudinal axis 25.
  • the curvature of the contact surface 17 of the permanent magnet 16 corresponds to the surface curvature of a ball 23 made of magnetizable material, preferably made of ferromagnetic material, which is located in the cup section 18.
  • the diameter of the ball 23 is significantly smaller than the longitudinal extent of the cup section 18 and slightly smaller than the clear width of the cup section 18, so that the ball 23 can be moved freely in section 18, but has as little play as possible laterally.
  • a seal 9 made of elastic material is provided, through which, as shown in FIG. 2, the writing tube 6 extends in the writing position of the tube disk tip, so that its front end can be brought into contact with a drawing pad while the front end of the writing tube 6 in the rest position ( Figure 3) will be closed by the seal 9.
  • a control bushing 27 which is non-rotatably connected to the housing part 1 and in which a helical groove 7 is formed det.
  • An annular seal 10 is rotatably seated on the control bushing 27 and is pressed backwards against the sleeve 4 screwed onto the cylinder body by a spring 8, which is supported with its front end on an annular shoulder in the housing part 1. In this way, a spring pressure acting backwards is continuously exerted on the tip of the tube recorder.
  • the seal 10 is in engagement with the groove 7 with a projection formed on it, so that the seal 10, which in the writing position (FIG. 2) connects the compensating chamber to the ambient air via axial channels formed therein, when moving into the rest position (FIG 3) is rotated in accordance with the course of the groove 7, whereby a sealing of the compensation chamber is effected.
  • the tube pen shown is, as mentioned, in the writing position in which the cup element 18 of the locking part is tilted relative to the longitudinal axis 25 of the tube pen tip, so that its longitudinal axis 26 is inclined to the axis 25.
  • the tilted position is the outer region of the handle portion 20 in a plane parallel to the outer surface of the clip 3, and the rear end of Griffa b-section 20 is in engagement with a shoulder 21 ( Figure 3) formed in the cap 14 .
  • the ball 23 lies, as indicated in FIG. 2, on the bottom of the cup section 18.
  • the ball 23 rolls in the cup section 18 in the direction of the permanent magnet 16 and is attracted by the latter. As a result, it comes to rest on the concavely curved contact surface 17 of the permanent magnet 16, as a result of which the ball carries out a lateral displacement of the opening area of the cup section 18, which leads to a pivoting of the locking part around the contact area on the end face of the insertion end 13 of the ink cartridge 12. As a result of this pivoting, the rear end of the grip section 20 is pressed outwards and out of engagement with the shoulder 21, so that the tube pen tip can move backwards together with the ink cartridges 11 and 12 due to the pressure of the spring 7.
  • the cup section 18 is displaced to the rear so that the permanent magnet 16 extends into the cup section 18 and prevents lateral pivoting of the locking part. In this position, the effect of the guide section 19 preventing lateral displacement of the bottom region of the cup section 18 in other positions is not necessary.
  • the inner contour of the cup element was provided with three conductive tracks (30, 30 ', 30 ”) in the form of grooves running in the longitudinal direction. These grooves ensure that the ball (23) is also in the lateral position, ie in a position in which the clip lies on the side, rolls perfectly.
  • the writing instrument In order to bring the tube pen tip back into the writing position, the writing instrument is moved into a substantially vertical position and then the grip section 20 is moved forward. The entire locking part and the tube pen tip move forward, and due to the weight of the ball 23, which is greater than the holding force of the permanent magnet 16, the ball 23 comes free from the contact surface 17 and falls into the bottom of the cup section 18. In this In the advanced position, the opening area of the cup section 18 is then cleared of the permanent magnet 16, and the handle section 20 can be pivoted inward with its rear end and thus brought into engagement with the shoulder 21 in order to lock the tube pen tip in the writing position.
  • Figure 4 shows a plan view of the clip (3), which is connected to the housing part (2) and the handle portion (20) serves as a guide.

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Pens And Brushes (AREA)
  • Laser Beam Printer (AREA)
  • Sewing Machines And Sewing (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Claims (10)

1. Instrument d'écriture avec un mécanisme de pression destiné à déplacer l'élément d'écriture (4, 5, 6, 11, 12, 13) contre une pression élastique à partir d'une position de repos rétractée pour passer en une position d'écriture avancée vers l'avant, dans laquelle l'élément d'écriture (4, 5, 6, 11, 12, 13) est maintenu bloqué en s'opposant à la pression d'écriture, et à partir de laquelle il est rétractable en position de repos à partir d'une position d'engagement avec le boîtier de l'instrument (1, 2, 14, 15), par suite d'une pression élastique, par déplacement d'une partie de blocage (18, 19, 20), caractérisé en ce que la partie de blocage (18, 19, 20) présente une partie en godet (18) ouverte vers l'arrière, dont la longueur est supérieure à son diamètre libre et dans laquelle une bille (23) en matière magnétisable est mobile librement dans les deux sens, et en ce qu'un aimant permanent (16) dont la face avant forme pour la bille (23) une face d'appui (17), concave et disposée coaxialement à l'élément d'écriture (4, 5, 6, 11, 12, 13), est disposé au voisinage de l'ouverture de la partie en godet (18), la force de maintien exercée par l'aimant permanent (16) sur la bille (23) appuyant sur ce dernier étant inférieure au poids de la bille (23).
2. Instrument d'écriture selon la revendication 1, caractérisé en ce que l'ouverture de la partie en godet (18) en position d'engagement de la partie de blocage (18, 19, 20) est excentrée par rapport à la face d'appui (17) de l'aimant permanent (16) et en ce qu'en position de repos de l'élément d'écriture (4, 5, 6), l'aimant permanent (16) s'étend dans la partie en godet (18).
3. Instrument d'écriture selon la revendication 2, caractérisé en ce que la partie en godet (18) est pivotante autour d'un point situé sur l'axe longitudinal (25) de l'élément d'écriture (4, 5, 6, 11, 12, - 13), entre la position excentrée de son ouverture par rapport à la face d'appui (17) de l'aimant permanent (16) et la position dans laquelle l'aimant permanent (16) s'étend dans la partie en godet (18).
4. Instrument d'écriture selon la revendication 3, caractérisé par une partie de guidage (19) prévue sur la partie en godet (18) et entourant la zone de couplage (13) avec l'élément d'écriture (4, 5, 6, 11,12,13).
5. Instrument d'écriture selon l'une des revendications 1 à 4, caractérisé en ce qu'une partie de prise (20), accessible de l'extérieur, de la partie de blocage (18, 19, 20) est guidée en direction axiale, de manière mobile dans un passage (22) de l'attache (3).
6. Instrument d'écriture selon la revendication 5, caractérisé en ce qu'en position d'engagement, une face arrière de la partie de prise (20) de la partie de blocage (18, 19, 20) est placée en prise de blocage avec un appendice (21) situé sur le boîtier de l'instrument (1, 2, 14, 15).
7. Instrument d'écriture selon l'une des revendications 1 à 6, ayant la forme d'un stylo à petit tube, caractérisé par un premier élément d'étanchéité (9), prévu à l'extrémité avant du boîtier de l'instrument (1, 2, 14, 15) et obturant de manière étanche l'extrémité avant du petit tube d'écriture (6) en position de repos de l'instrument d'écriture (4, 5, 6, 11, 12, 13), et à travers lequel passe le petit tube d'écriture (6), dans la position d'écriture de l'élément d'écriture (4, 5, 6, 11, 12, 13).
8. Instrument d'écriture selon la revendication 7, caractérisé en ce qu'un deuxième élément d'étanchéité (10) de forme annulaire est disposé sur l'élément d'écriture (4, 5, 6, 11, 12, 13), devant l'orifice de liaison ou les orifices de liaison des chambres d'équilibrage à l'air ambiant, élément pressé par un ressort (8) en direction du ou des orifices de liaison, et en ce que, dans la position d'écriture de l'élément d'écriture (4, 5, 6, 11, 12, 13), le deuxième élément d'étanchéité (10) est aligné, en libérant le ou les orifices de liaison, les évidements prévus en lui étant alignés par rapport à ce ou à ces orifices, et qu'en position de repos de l'élément d'écriture (4, 5, 6, 11, 12, 13), étant tourné par rapport à la position d'éctirure, il obture le ou les orifices de liaison.
9. Instrument d'écriture selon la revendication 8; caractérisé en ce que le deuxième élément d'étanchéité (10) est guidé en rotation dans une gorge hélicoïdale d'une douille de commande (27) maintenue bloquée en rotation.
10. Instrument d'écriture selon l'une des revendications 1 à 6, ayant la forme d'un stylo à petit tube, caractérisé en ce que des gorges (30, 30', 30") s'étendant dans l'axe longitudinal de l'instrument d'écriture, dans la face intérieure de l'élément en godet (18), sont prévues pour guider la bille (23).
EP87108584A 1986-07-26 1987-06-15 Instrument d'écriture avec mécanisme de pression Expired - Lifetime EP0256244B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108584T ATE50206T1 (de) 1986-07-26 1987-06-15 Schreibgeraet mit einer druckmechanik.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863625381 DE3625381A1 (de) 1986-07-26 1986-07-26 Schreibgeraet mit einer druckmechanik
DE3625381 1986-07-26

Publications (2)

Publication Number Publication Date
EP0256244A1 EP0256244A1 (fr) 1988-02-24
EP0256244B1 true EP0256244B1 (fr) 1990-02-07

Family

ID=6306078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108584A Expired - Lifetime EP0256244B1 (fr) 1986-07-26 1987-06-15 Instrument d'écriture avec mécanisme de pression

Country Status (8)

Country Link
US (1) US4729685A (fr)
EP (1) EP0256244B1 (fr)
JP (1) JPS6335398A (fr)
KR (1) KR920002187B1 (fr)
AT (1) ATE50206T1 (fr)
DE (2) DE3625381A1 (fr)
ES (1) ES2013617B3 (fr)
GR (1) GR3000380T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2006941C2 (nl) * 2011-06-15 2012-12-18 Creaidea B V Viltstift.
DE102013021815B4 (de) 2013-12-20 2018-09-06 Oleksandr Barinberg Schreibgerät
CN105082830B (zh) * 2014-05-05 2017-05-31 梅迪奇创意股份有限公司 自动回收手持文具
FR3065396B1 (fr) * 2017-04-19 2019-07-05 Societe Bic Dispositif manuel, notamment instrument d'ecriture, equipe d'un dispositif de blocage

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725038A (en) * 1953-01-02 1955-11-29 Morris Owen Magnetic ball point pens
NL205053A (fr) * 1955-03-04
US2813511A (en) * 1955-07-05 1957-11-19 Parker Pen Co Writing instrument
GB832094A (en) * 1956-03-09 1960-04-06 Theodor Kovacs Improvements in writing instruments
BE559928A (fr) * 1956-03-26
DE1225994B (de) * 1956-03-26 1966-09-29 Paper Mate Mfg Company Schreibgeraet, insbesondere Kugelschreiber, mit einem zwischen einer Schreib- und einer Ruhestellung bewegbaren Schreibteil
US2921557A (en) * 1957-04-15 1960-01-19 Paper Mate Mfg Co Writing instruments
DE1294850B (de) * 1963-04-27 1969-05-08 Ritter Kg J Druckmechanik fuer einen Schreibstift, insbesondere Kugelschreiber
DE1298911B (de) * 1964-10-29 1969-07-03 Boost Werner Kugelschreiber
DE7037517U (de) * 1970-10-10 1971-01-14 Faber Castell A Schreibgerat mit Spitzenverschluß
DE2531040A1 (de) * 1975-07-11 1977-01-20 Rotring Werke Riepe Kg Fuellhalter mit zurueckziehbarer schreibspitze
US4176979A (en) * 1977-10-31 1979-12-04 Yasushi Saida Ball-point pen
JPS5830717Y2 (ja) * 1979-10-29 1983-07-06 三菱鉛筆株式会社 ノツク式シヤ−プペンシル
US4377349A (en) * 1981-06-12 1983-03-22 Shusaku Kunii Ball point pen

Also Published As

Publication number Publication date
JPS6335398A (ja) 1988-02-16
DE3625381C2 (fr) 1988-04-28
ES2013617B3 (es) 1990-05-16
EP0256244A1 (fr) 1988-02-24
US4729685A (en) 1988-03-08
GR3000380T3 (en) 1991-06-07
ATE50206T1 (de) 1990-02-15
DE3761624D1 (de) 1990-03-15
KR880001448A (ko) 1988-04-23
KR920002187B1 (ko) 1992-03-19
DE3625381A1 (de) 1988-02-04

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