EP0624484B1 - Stylo à bille à assemblage simplifié - Google Patents

Stylo à bille à assemblage simplifié Download PDF

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Publication number
EP0624484B1
EP0624484B1 EP94105441A EP94105441A EP0624484B1 EP 0624484 B1 EP0624484 B1 EP 0624484B1 EP 94105441 A EP94105441 A EP 94105441A EP 94105441 A EP94105441 A EP 94105441A EP 0624484 B1 EP0624484 B1 EP 0624484B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
tubular element
button
push
pen
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
EP94105441A
Other languages
German (de)
English (en)
Other versions
EP0624484A1 (fr
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
Priority to SI9430064T priority Critical patent/SI0624484T1/xx
Publication of EP0624484A1 publication Critical patent/EP0624484A1/fr
Application granted granted Critical
Publication of EP0624484B1 publication Critical patent/EP0624484B1/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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
    • G09F2023/0016—Advertising on or in specific articles, e.g. ashtrays, letter-boxes on pens

Definitions

  • the present invention relates to a ball point pen of the type including:
  • the object of the present invention is to provide a pen of the type described above in which the push-button may be assembled with the other components in an automated assembly process.
  • a pen of the type described above characterised in that either the inner surface of the sleeve or the outer surface of the tubular element has at least one longitudinal rib and an annular projection and in that, correspondingly, the outer surface of the tubular element or the inner surface of the sleeve has at least one raised, shaped element which interferes radially with the annular projection and defines at least one longitudinal groove arranged to form a seat for the rib when the sleeve is fitted onto the tubular element.
  • the push-button is positioned along the axis defined by the remaining components of the pen, which have already been fitted together, and is subsequently fitted onto the tubular element with the at least one longitudinal rib inserted in the corresponding groove defined by the at least one raised, shaped element.
  • This insertion movement also causes the annular projection to pass over the at least one raised, shaped element as a result of resilient deformation, and to position itself beyond the lower edge of the projection.
  • this lower edge thus forms a stop shoulder for the annular projection and prevents the push-button from sliding off the tubular element.
  • the annular projection and a plurality of longitudinal ribs, equiangularly spaced around the circumference, are preferably formed on the inner surface of the push-button sleeve of the pen of the invention, while a plurality of raised, shaped elements are equiangularly spaced around the outer surface of the tubular element so as to define between them the same number of grooves as there are ribs and having pointed tips at their ends facing the push-button such that the inclined surfaces defining the tips constitute lead-in surfaces for facilitating the entry of the ribs into the corresponding grooves.
  • This embodiment has the advantage that, during the assembly of the push-button with the other components of the pen, the ribs of the push-button are obliged to fit into the grooves in the shaped element, even if they were not originally aligned, thanks to the inclination of the surfaces defining the pointed tips of the shaped elements facing the ribs, which facilitates the insertion of the latter into the corresponding grooves.
  • This characteristic simplifies the automatic assembly of the pen, eliminating the need to orient the push-button correctly relative to the other components as this occurs automatically during the insertion operation.
  • the engagement of the ribs with the grooves also has the added advantage of preventing any relative rotation of the push-button and the tubular element during use of the pen, thus avoiding possible damage due to this movement.
  • the insertion of the push-button may be carried out as the final operation and may therefore test the snap mechanism for the writing point, which has previously been assembled with the other components, by means of the continuing travel of the push-button.
  • the push-button of the pen of the invention has means within it, such as the annular projection and the ribs, which allow it to be fitted together with the other components. As these means do not project outside the push-button, the transverse dimensions of that portion thereof which is intended to project from the barrel of the pen are not subject to any particular limitations.
  • the pen of the invention thus has an aesthetic advantage as the portion of the push-button intended to project from the barrel extends the line of the latter as its radial dimensions are only slightly smaller.
  • resilient means are interposed between the end surface of the push-button sleeve and the upper end of the tubular element.
  • a ball point pen ( Figures 1 and 2) includes an elongate hollow barrel 10 constituted by a lower part 10a and an upper part 10b.
  • a tubular element 12 is housed coaxially within the latter and has threading 14 around its lower end onto which the lower part 10a is screwed.
  • a tube 16 containing ink is arranaged coaxially within the latter part 10a with a writing point 18 fixed to its lower end.
  • the assembly constituted by the tube 16 and the writing point 18 is usually known as a refill.
  • a mechanism in itself known and generally indicated 20, is also housed in the barrel 10 and arranged to allow the writing point 18 to snap in and out of the barrel 10.
  • the snap mechanism 20 is controlled by a push-button 22 mounted on the upper end of the tubular element 12, as will be explained in detail below.
  • the push-button 22 ( Figures 3 and 4) is formed by a sleeve 24 having an end wall 26 at one end, the other end 28 being open.
  • a pin 30 for operating the snap mechanism 20 projects from the end wall 26 into the sleeve 24.
  • a helical spring 32 is interposed between the end wall 26 of the sleeve 24 and the upper end 34 of the tubular element 12.
  • the lower portion 36 of the outer surface of the sleeve 24, intended to remain always inside the barrel 10, projects slightly relative to the upper portion 38 which is intended to project from the barrel 10 so as to prevent the portion 38 from rubbing against the facing inner surface of the barrel 10 when the push-button 22 is operated.
  • the inner surface of the sleeve 24 has a plurality of longitudinal ribs 40 equiangularly spaced around its circumference and an annular projection 42 adjacent the open end 28.
  • the outer surface of the tubular element 12 has a plurality of raised, shaped elements 44 equiangularly spaced around its circumference so as to define the same number of grooves 46 between them as there are ribs 40.
  • Each shaped element 44 has a pointed tip 48 at its end facing the push-button 22 and a portion 50 the thickness of which increases as it approaches the end opposite that facing the push-button 22.
  • the push-button 22 is positioned along the axis defined by the other components of the pen which have been assembled previously and is pushed against the upper end 34 of the tubular element 12.
  • the ribs 40 of the sleeve 24 easily enter the corresponding grooves 46 in the tubular element 12, even without deliberate prealignment, thanks to the inclination of the sides 52 defining the pointed tips 48 of the shaped elements 44 which form lead-in surfaces for the ribs 40 facilitating their entry into the corresponding grooves 46.
  • the open end 28 of the sleeve 24 deforms slightly due to its resilience as there is interference between the annular projection 42 and the shaped elements 44 which gradually increases as the projection 42 slides over the portions 50 of the shaped elements 44.
  • the positions of the ribs 40 and the shaped elements 44 may be inverted, the latter being arranged on the inner surface of the sleeve 24 and the ribs 40 arranged on the outer surface of the tubular element 12 along with the annular projection 42.

Landscapes

  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Closures For Containers (AREA)

Claims (5)

  1. Stylo à bille comprenant :
    - un cylindre creux allongé (10),
    - un élément tubulaire (12) monté coaxialement à l'intérieur de la partie supérieure du cylindre (10),
    - une pointe d'écriture (18) fixée sur un tube (16) formant réservoir d'encre, ce tube (16) étant situé coaxialement à l'intérieur de la partie inférieure du cylindre (10) et de l'élément tubulaire (12), et cette pointe (18) étant disposée à l'extrémité inférieure du cylindre (10), et
    - un bouton-poussoir (22) formé par un manchon (24) présentant une paroi terminale (26) à une extrémité et une extrémité ouverte (28) à l'autre, le bouton-poussoir (22) étant assemblé coaxialement à l'extrémité supérieure du stylo et conçu pour commander l'extension/le retrait de la pointe d'écriture (18) par rapport au cylindre (10),
       le stylo étant caractérisé en ce qu'au moins une nervure longitudinale (40) et une saillie annulaire (42) sont formées sur la surface intérieure du manchon (24) ou sur la surface extérieure de l'élément tubulaire (12) et en ce que, de façon correspondante, au moins un élément (44) profilé, en relief, est formé sur la surface extérieure de l'élément tubulaire (12) ou sur la surface intérieure du manchon (24), l'élément profilé en relief étant conçu pour coopérer radialement avec la saillie annulaire (42) et pour définir au moins une rainure longitudinale (46) conçue pour constituer un siège pour la nervure (40) lorsque le manchon (24) est assemblé sur l'élément tubulaire (12).
  2. Stylo selon la revendication 1, caractérisé en ce que la surface intérieure du manchon (24) présente la saillie annulaire (42) et une pluralité de nervures longitudinales (40) réparties de façon équiangulaire sur sa circonférence, et en ce que la surface extérieure de l'élément tubulaire (12) présente une pluralité d'éléments (44) profilés, en relief, répartis de façon équiangulaire sur sa circonférence afin de définir, entre eux, le même nombre de rainures (46) que le nombre de nervures (40), chaque élément profilé possédant un bout pointu (48) au niveau de son extrémité située en regard du bouton-poussoir (22), de telle sorte que les surfaces inclinées (52) définissant les bouts (48) constituent des surfaces d'entrée pour faciliter l'entrée des nervures (40) dans les rainures (46) correspondantes.
  3. Stylo selon la revendication 2, caractérisé en ce que chaque élément profilé (44) possède au moins une partie (50) dont l'épaisseur augmente en direction de l'extrémité de l'élément profilé (44) qui est opposée à celle située en regard du bouton-poussoir (22).
  4. Stylo selon l'une quelconque des précédentes revendications 2 ou 3, caractérisé en ce que la saillie annulaire (42) est formée sur le manchon (24) de façon adjacente à son extrémité ouverte (28).
  5. Stylo selon l'une quelconque des revendications précédentes, caractérisé en ce que des moyens élastiques (32) sont montés entre la paroi terminale (26) du manchon (24) et l'extrémité supérieure (34) de l'élément tubulaire (12).
EP94105441A 1993-05-12 1994-04-08 Stylo à bille à assemblage simplifié Expired - Lifetime EP0624484B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9430064T SI0624484T1 (en) 1993-05-12 1994-04-08 A simplified-assembly ball point pen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO930331A IT1270936B (it) 1993-05-12 1993-05-12 Penna a sfera di montaggio semplificato
ITTO930331 1993-05-12

Publications (2)

Publication Number Publication Date
EP0624484A1 EP0624484A1 (fr) 1994-11-17
EP0624484B1 true EP0624484B1 (fr) 1997-07-23

Family

ID=11411477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105441A Expired - Lifetime EP0624484B1 (fr) 1993-05-12 1994-04-08 Stylo à bille à assemblage simplifié

Country Status (7)

Country Link
EP (1) EP0624484B1 (fr)
AT (1) ATE155746T1 (fr)
DE (1) DE69404378T2 (fr)
ES (1) ES2105395T3 (fr)
HK (1) HK1013051A1 (fr)
IT (1) IT1270936B (fr)
SI (1) SI0624484T1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5831579A (en) * 1997-04-15 1998-11-03 Ericsson, Inc. Latch mechanism for mobile communication devices
ES2153313B1 (es) * 1999-01-21 2001-11-16 Biomed S A Aparato para la aplicacion guiada de una grapa retractil para el cierre precutaneo de orificios, incisiones o laceraciones en vasos, conductos o estructuras anatomicas humanas, grapa retractil y procedimiento para su aplicacion.
SE516214C2 (sv) * 1999-12-23 2001-12-03 Allgon Ab Antennanordning och portabel kommunikationsanordning innefattande en sådan antennanordning
FR2890198B1 (fr) * 2005-08-30 2007-11-30 Jung Tsan Liu Mecanisme de retractation d'un crayon optique
DE102019102667A1 (de) * 2019-02-04 2020-08-06 Wera Werkzeuge Gmbh Schraubwerkzeug mit Getriebeübersetzung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL121491C (fr) * 1963-05-02
US3318289A (en) * 1965-05-11 1967-05-09 Northern Ind Products Bi-stable mechanism
US4991988A (en) * 1989-04-18 1991-02-12 Bic Corporation Component writing instrument having retractable cartridge
JPH0753993Y2 (ja) * 1989-07-07 1995-12-13 株式会社パイロット 筆記体の出没機構
DE69107458T2 (de) * 1991-10-21 1995-06-22 Kotobuki & Co Ltd Kugelschreiber mit einem drehbaren Nocken.

Also Published As

Publication number Publication date
ITTO930331A0 (it) 1993-05-12
IT1270936B (it) 1997-05-16
DE69404378D1 (de) 1997-09-04
ATE155746T1 (de) 1997-08-15
SI0624484T1 (en) 1998-04-30
EP0624484A1 (fr) 1994-11-17
ITTO930331A1 (it) 1994-11-12
HK1013051A1 (en) 1999-08-13
DE69404378T2 (de) 1997-11-13
ES2105395T3 (es) 1997-10-16

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