EP0595917B2 - Verfahren zur herstellung eines stiftes - Google Patents

Verfahren zur herstellung eines stiftes Download PDF

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Publication number
EP0595917B2
EP0595917B2 EP92915797A EP92915797A EP0595917B2 EP 0595917 B2 EP0595917 B2 EP 0595917B2 EP 92915797 A EP92915797 A EP 92915797A EP 92915797 A EP92915797 A EP 92915797A EP 0595917 B2 EP0595917 B2 EP 0595917B2
Authority
EP
European Patent Office
Prior art keywords
melt adhesive
lead
mine
hot melt
mines
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
EP92915797A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0595917A1 (de
EP0595917B1 (de
Inventor
Thomas Stöcklein
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.)
Schwan Stabilo Schwanhausser GmbH and Co KG
Original Assignee
Schwan Stabilo Schwanhausser GmbH and Co 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6436707&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0595917(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schwan Stabilo Schwanhausser GmbH and Co KG filed Critical Schwan Stabilo Schwanhausser GmbH and Co KG
Publication of EP0595917A1 publication Critical patent/EP0595917A1/de
Publication of EP0595917B1 publication Critical patent/EP0595917B1/de
Application granted granted Critical
Publication of EP0595917B2 publication Critical patent/EP0595917B2/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
    • B43K19/16—Making non-propelling pencils

Definitions

  • the invention relates to a method for producing a Pin, a in a groove of a first housing part Mine inserted and on the first housing part with the mine then a second formed with a groove Housing part attached and the lead with the housing parts and the two housing parts are glued together.
  • the so-called bonding process is used to manufacture a pen known, in which an adhesive several times ring-shaped or in a network structure on the mine is applied.
  • the bonding process is used for Fixing the lead in the groove of a first housing part or to fix the lead between the two with corresponding grooves trained housing parts.
  • the disadvantage is that it is difficult to use an adhesive in the manner mentioned, i.e. with the bonding process to build a mine.
  • a method of making pencils in which a water-soluble glue for gluing the mines between Shaft halves used is from GB 471 340 known.
  • a similar process is shown in FR 781 976.
  • a pencil making machine where one Glue device is provided is from the "Journal of Microwave Power ", 10 (1), 1975, pages 19 to 26.
  • a microwave heating device is used there.
  • a device for gluing boards at the Pen production is known from DE 22 65 723.
  • DE-AS 1 230 329 describes a method for solid Connection of a pencil lead with a pencil cover known.
  • a microporous glue coating i.e. a highly diluted plastic glue
  • the Dilution ratio is 1:10, for example.
  • DE-GM 7 038 350 distinguishes between a so-called “White glue”, i.e. a polyvinyl acetate dispersion for the Gluing the halves of the wooden jacket of a pencil and a hot melt adhesive to glue the lead in half of the wooden jacket. So here come two from each other various adhesive materials for use.
  • White glue i.e. a polyvinyl acetate dispersion for the Gluing the halves of the wooden jacket of a pencil and a hot melt adhesive to glue the lead in half of the wooden jacket. So here come two from each other various adhesive materials for use.
  • the invention has for its object a method of to create the type mentioned above, with which the above mentioned problems are eliminated, i.e. with which in particular. Tolerances of the leads or tolerances of the grooves in the housing parts are easily compensated so that the said pens with high productivity at low Manufacturing committee can be produced.
  • the flexible, flexible hot melt adhesive layer Manufacturing tolerances of the mines, such as through Drying shrinkage or by stretching or compression are effected and also dimensional tolerances of the for receiving the mine-serving grooves in the housing parts be balanced so that the attachment of the mines between the housing parts without any problems, i.e. with little Manufacturing committee is possible.
  • the flexible Hot melt glue can be used between the leads Housing parts are pinched without it Damage to the mines is coming.
  • the flexible hot melt adhesive guarantees that every mine fits snugly in the groove of the corresponding housing part. Even grooves with one Non-circular cross-sectional profile can be created using the flexible Hot melt adhesive can be compensated.
  • the mine is in a bath of hot melt adhesive introduced in which the mine with a layer of the Hot melt adhesive is covered.
  • the one with the hot melt adhesive covered mine is then passed through a calibration nozzle moved through.
  • excess hot melt adhesive removed from the mine, so that the outer dimensions of the with the Hot melt adhesive covered mines in precisely defined conditions surrender. This is for mass production with yours Tolerance influences of importance.
  • the process steps of placing the mine in the bath of hot melt glue and moving it with that Hot melt adhesive covered mine through the calibration nozzle be separated from each other.
  • High productivity will however, when the mine reached through the bath of the Hot melt adhesive and immediately afterwards through the Calibration nozzle is moved.
  • the Wall of the hot melt adhesive bath container with formed at least one corresponding calibration nozzle be.
  • the hot melt adhesive can be placed upstream of the mine calibration nozzle applied and with the hot melt adhesive covered mine can simultaneously through the calibration nozzle be moved through. This procedure is carried out with the help of performed hot melt adhesive bath mentioned above. With the lead covered with hot melt adhesive can then simultaneously be moved through the calibration nozzle to defined To achieve ratios with the hot melt adhesive.
  • a very time-saving process results from the fact that the attachment of the lead between the two housing parts by means of microwave radiation. While in use a so-called nutleime for drying on the order of eight Hours are required, it is when using the said hot melt adhesive possible, the microwave radiation just soak in for a few seconds to get the to implement corresponding mechanically firm connection.
  • step a the figure shows a mine 10 which is only drawn in sections.
  • Process step b shows the mine 10, on which a layer 12 from a Hot melt adhesive has been applied. This happens in that the mine 10 in a bath of a hot Hot melt adhesive is immersed.
  • Mine 10 can a ready-made writing lead or one cosmetic powder lead or the like act. In any case acts it is a mine 10 from a non-melting Material.
  • a calibration nozzle 14 illustrates through which the with the hot melt adhesive layer 12 coated mine 10 is moved through what through the Arrow 16 is indicated. Using the calibration nozzle 14 excess hot melt adhesive material from mine 10 removed so that downstream of the calibration nozzle 14 there is a mine 10 on which a precisely defined one Amount of hot melt adhesive material sticks, or which one defined outer diameter.
  • Process step d is intended to introduce the with the well-defined hot melt adhesive layer 12 covered mine 10 in a first housing part 18 and the attachment of a second housing part 20 on the mine 10 equipped clarify the first housing part 18.
  • Each of the two Housing parts 18, 20 is formed with a groove 22 which for receiving the lead coated with the hot melt adhesive 12 10 serves.
  • housing parts 18 and 20 are one finished pen drawn, it has been useful however proved if instead of such housing parts suitably shaped boards with a number next to each other parallel grooves 22 for use reach.
  • the fixation of the mine 10 between the two housing parts 18 and 20 takes place by means of microwave radiation.
  • the Bonding of the housing parts 18 and 20 can be done by a known gluing happen.

Landscapes

  • Adhesives Or Adhesive Processes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
EP92915797A 1991-07-20 1992-07-16 Verfahren zur herstellung eines stiftes Expired - Lifetime EP0595917B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4124210A DE4124210A1 (de) 1991-07-20 1991-07-20 Verfahren zur herstellung eines stiftes
DE4124210 1991-07-20
PCT/EP1992/001621 WO1993001944A1 (de) 1991-07-20 1992-07-16 Verfahren zur herstellung eines stiftes

Publications (3)

Publication Number Publication Date
EP0595917A1 EP0595917A1 (de) 1994-05-11
EP0595917B1 EP0595917B1 (de) 1995-04-05
EP0595917B2 true EP0595917B2 (de) 1998-11-11

Family

ID=6436707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92915797A Expired - Lifetime EP0595917B2 (de) 1991-07-20 1992-07-16 Verfahren zur herstellung eines stiftes

Country Status (5)

Country Link
US (1) US5549779A (enrdf_load_stackoverflow)
EP (1) EP0595917B2 (enrdf_load_stackoverflow)
DE (2) DE4124210A1 (enrdf_load_stackoverflow)
MX (1) MX9202890A (enrdf_load_stackoverflow)
WO (1) WO1993001944A1 (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2964914B2 (ja) * 1995-05-19 1999-10-18 ヤマハ株式会社 ステアリングホイールの製法
US6062753A (en) * 1998-08-17 2000-05-16 Pentech International Inc. Writing instrument with enhanced tactile control and gripping comfort and method of making same
US6179502B1 (en) 1999-02-10 2001-01-30 Dixon Ticonderoga Company Writing instrument with locking core
US6284079B1 (en) 1999-03-03 2001-09-04 International Business Machines Corporation Method and structure to reduce low force pin pull failures in ceramic substrates
FR2802148B1 (fr) * 1999-12-13 2003-01-24 Conte Procede de fabrication par tri-extrusion d'un crayon a ecrire ou a colorier et crayon a ecrire ou a colorier comportant une couche intermediaire de protection
US20040175223A1 (en) * 2003-03-04 2004-09-09 Berry Grant Lloyd Cosmetic pencil
EP1464248A1 (de) * 2003-04-04 2004-10-06 Schwan-STABILO Cosmetics GmbH & Co. KG Kosmetikstift und Verfahren zu seiner Herstellung
US20060147252A1 (en) * 2005-01-03 2006-07-06 Kathleen Torrell Liquid graphite pencil
DE102005004175B4 (de) * 2005-01-26 2013-11-28 J. S. Staedtler Gmbh & Co. Kg Mine für Schreib-, Zeichen- oder Malgeräte
CN1872922A (zh) * 2005-04-16 2006-12-06 Jakks太平洋有限公司 液体石墨
DE102008022969A1 (de) 2008-05-09 2008-11-20 Clariant International Limited Beschichtungsmittel und dessen Verwendung
DE102018103386A1 (de) * 2018-02-15 2019-08-22 Schwan-Stabilo Cosmetics Gmbh & Co. Kg Verfahren zur Herstellung von Puderminen und damit hergestellte Produkte
DE202018100825U1 (de) 2018-02-15 2019-05-20 Schwan-Stabilo Cosmetics Gmbh & Co. Kg Puderminen

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1892508A (en) * 1931-03-27 1932-12-27 Eagle Pencil Co Lead pencil and method of making the same
FR781976A (fr) * 1934-11-30 1935-05-25 American Lead Pencil Co Perfectionnements apportés aux crayons et à leur procédé de fabrication
GB471340A (en) * 1935-08-14 1937-09-02 Eagle Pencil Co Improvements in or relating to lead pencils
US2098452A (en) * 1936-01-31 1937-11-09 Eagle Pencil Co Art of lead pencil manufacture
US2319585A (en) * 1941-01-07 1943-05-18 Eagle Pencil Co Pencil
FR969976A (fr) * 1948-07-01 1950-12-28 Fabrication de crayon avec une mine et des matières plastiques synthétiques
GB956119A (en) * 1963-02-04 1964-04-22 Hassenfeld Bros Inc Improvements in or relating to a lead pencil and method of manufacture
DE1230329B (de) * 1960-07-30 1966-12-08 Faber Castell A W Verfahren zur Erzielung einer innigen Verbindung der Bleistiftmine mit der Bleistifthuelle
DE2217904C3 (de) * 1972-04-13 1980-04-10 Karl Dipl.-Ing. 8500 Nuernberg Zuber Mineneinleg- und Beleimvorrichtung für Bleistiftbrettchen
DE2242669C2 (de) * 1972-08-30 1982-08-26 Fr. Ehrhardt Bleistiftmaschinenfabrik GmbH & Co, 8500 Nürnberg Verfahren und Vorrichtung zur Brettchenverleimung in der Schreibstiftherstellung
DE2265723C2 (de) * 1972-08-30 1985-05-02 Fr. Ehrhardt Bleistiftmaschinenfabrik GmbH & Co, 8500 Nürnberg Vorrichtung zum Brettchenverleimen bei der Schreibstiftherstellung
US3882819A (en) * 1974-04-17 1975-05-13 Hasbro Industries Inc Device for coating elements of continuous length
DE2845078C2 (de) * 1978-10-17 1982-05-27 Fa. J.S. Staedtler, 8500 Nürnberg Schreibstift und Verfahren zu seiner Herstellung
DE3330119A1 (de) * 1983-08-20 1985-03-07 Fa. J.S. Staedtler, 8500 Nürnberg Stift oder kreide und verfahren zu deren herstellung
US5244297A (en) * 1991-03-19 1993-09-14 Conte S.A. Process for manufacturing pencil by tri-extrusion and the produced pencil having an intermediate protective casing

Also Published As

Publication number Publication date
US5549779A (en) 1996-08-27
DE59201852D1 (de) 1995-05-11
MX9202890A (es) 1993-01-01
DE4124210C2 (enrdf_load_stackoverflow) 1993-07-08
EP0595917A1 (de) 1994-05-11
WO1993001944A1 (de) 1993-02-04
EP0595917B1 (de) 1995-04-05
DE4124210A1 (de) 1993-01-21

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