EP0452281B1 - A ballpoint pen with a retractable writing tip - Google Patents

A ballpoint pen with a retractable writing tip Download PDF

Info

Publication number
EP0452281B1
EP0452281B1 EP91830136A EP91830136A EP0452281B1 EP 0452281 B1 EP0452281 B1 EP 0452281B1 EP 91830136 A EP91830136 A EP 91830136A EP 91830136 A EP91830136 A EP 91830136A EP 0452281 B1 EP0452281 B1 EP 0452281B1
Authority
EP
European Patent Office
Prior art keywords
barrel
sleeve
pin
ballpoint pen
cap
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
EP91830136A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0452281A1 (en
Inventor
Giovanni Avenatti
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.)
Stilolinea SRL
Original Assignee
Stilolinea SRL
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 Stilolinea SRL filed Critical Stilolinea SRL
Publication of EP0452281A1 publication Critical patent/EP0452281A1/en
Application granted granted Critical
Publication of EP0452281B1 publication Critical patent/EP0452281B1/en
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
    • 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
    • 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
    • B43K7/00—Ball-point pens
    • B43K7/12—Ball-point pens with retractable ball points

Definitions

  • the present invention relates to a ballpoint pen with a retractable writing tip, including the features indicated in the pre-characterising portion of Claim 1.
  • GB-A-1 264 963 discloses a ballpoint pen having the above-mentioned features.
  • the object of the present invention is to provide a ballpoint pen of the type indicated above whose components can be assembled quickly by automated systems and hence at low cost.
  • the subject of the present invention is a ballpoint pen of the type indicated above and further comprising the features indicated in the characterising portion of claim 1.
  • the pen according to the present invention has the advantage that it is constituted by a small number of parts which can be assembled quickly.
  • the top portion which forms part of the cap can be fitted onto the other components of the pen simply by its insertion in the sleeve of the cap and in the barrel under pressure, as will be described in greater detail below. This operation can thus easily be automated.
  • the ballpoint pen includes a clip constituted by an annular element from which a longitudinal element extends outside the sleeve of the cap and the barrel and is characterised in that the annular element is clamped between the head of the top portion and the facing end of the sleeve.
  • a ballpoint pen with a retractable writing tip 2 includes a hollow, substantially cylindrical barrel 4 and a cap 6 mounted coaxially on the end of the barrel 4 opposite that associated with the writing tip 2 and slidable relative thereto.
  • a helical spring 8 is interposed between the barrel 4 and the cap 6.
  • the cap 6 is constituted by a sleeve 10 and a top portion 12 having a head 14 with a projecting central pin 16 which fits in the sleeve 10.
  • the pin 16 has a first portion 16a of larger cross-section, in which an annular groove 20 is formed, and a second portion 16b of smaller cross-section which is joined to the first portion 16a by a flared intermediate portion 16c.
  • the sleeve 10 and the top portion 12 are fixed together by engagement means comprising the groove 20 in the pin 16 and an annular projection 18 of corresponding shape to the shape of the groove 20 on the inner surface of the sleeve 10.
  • the side 18a of the projection 18 which faces the head 14 of the top portion 12 is inclined to the axis of the pen at an angle substantially similar to that of the intermediate portion 16c of the pin 16 so as to facilitate the fitting of the top portion 12 in the sleeve 10, as will be described in greater detail below.
  • the free end 22 of the pin 16 is tapered and has an annular projection 24 which is intended to abut a corresponding surface 21 of the barrel 4 so as to restrain the free end 22 in the barrel 4.
  • the free end 22 also acts as the actuator of the snap-mechanism of the pen, schematically indicated 25, which is of known type and is not described further.
  • the pen also includes a clip 26 constituted by an annular element 28 from which a longitudinal element 30 extends outside the sleeve 10 of the cap 6 and the barrel 4.
  • the annular element 28 is clamped between the head 14 of the top portion 12 and the facing end of the sleeve 10.

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Pens And Brushes (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
EP91830136A 1990-04-13 1991-04-09 A ballpoint pen with a retractable writing tip Expired - Lifetime EP0452281B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT52970U IT220491Z2 (it) 1990-04-13 1990-04-13 Penna a sfera del tipo a punta scrivente rientrante
IT5297090U 1990-04-13

Publications (2)

Publication Number Publication Date
EP0452281A1 EP0452281A1 (en) 1991-10-16
EP0452281B1 true EP0452281B1 (en) 1995-06-07

Family

ID=11278947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91830136A Expired - Lifetime EP0452281B1 (en) 1990-04-13 1991-04-09 A ballpoint pen with a retractable writing tip

Country Status (5)

Country Link
EP (1) EP0452281B1 (it)
AT (1) ATE123449T1 (it)
DE (1) DE69110183T2 (it)
ES (1) ES2073155T3 (it)
IT (1) IT220491Z2 (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9319800U1 (de) * 1993-12-28 1994-07-14 Otto Ganter & Co. Kg, 78120 Furtwangen Federbelasteter Druckstift mit Verrastung
DE9319799U1 (de) * 1993-12-28 1994-06-16 Otto Ganter & Co. Kg, 78120 Furtwangen Federbelasteter Druckstift
US7059796B2 (en) 2002-04-17 2006-06-13 Avery Dennison Corporation Self-sealing retractable writing instrument
DE602008002896D1 (de) 2007-02-05 2010-11-18 Novo Nordisk As Injektionsknopf
HRP20240485T1 (hr) 2017-08-24 2024-07-05 Novo Nordisk A/S Pripravci glp-1 i njihova upotreba
PE20230819A1 (es) 2020-02-18 2023-05-19 Novo Nordisk As Composiciones y usos de glp-1

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR934235A (fr) * 1946-09-13 1948-05-14 Perfectionnements aux stylographes
FR1133917A (fr) * 1955-06-02 1957-04-03 M Devoucoux Et Fils Soc Perfectionnements à la fabrication des capuchons pour stylographes à bille rétractile
US3326189A (en) * 1965-08-20 1967-06-20 Prec Specialties Inc Writing instrument
GB1264963A (it) * 1968-07-24 1972-02-23

Also Published As

Publication number Publication date
DE69110183D1 (de) 1995-07-13
IT220491Z2 (it) 1993-09-24
EP0452281A1 (en) 1991-10-16
DE69110183T2 (de) 1995-10-19
IT9052970V0 (it) 1990-04-13
ATE123449T1 (de) 1995-06-15
ES2073155T3 (es) 1995-08-01
IT9052970U1 (it) 1991-10-13

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