EP1240640B1 - Procede pour produire des fermetures de securite a languette traversante - Google Patents

Procede pour produire des fermetures de securite a languette traversante Download PDF

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Publication number
EP1240640B1
EP1240640B1 EP99959165A EP99959165A EP1240640B1 EP 1240640 B1 EP1240640 B1 EP 1240640B1 EP 99959165 A EP99959165 A EP 99959165A EP 99959165 A EP99959165 A EP 99959165A EP 1240640 B1 EP1240640 B1 EP 1240640B1
Authority
EP
European Patent Office
Prior art keywords
tongue
profile
pull
profiled
base body
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
EP99959165A
Other languages
German (de)
English (en)
Other versions
EP1240640A1 (fr
Inventor
André Goby
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.)
Stoba AG
Original Assignee
Stoba AG
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 Stoba AG filed Critical Stoba AG
Publication of EP1240640A1 publication Critical patent/EP1240640A1/fr
Application granted granted Critical
Publication of EP1240640B1 publication Critical patent/EP1240640B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0305—Forms or constructions of security seals characterised by the type of seal used
    • G09F3/037—Forms or constructions of security seals characterised by the type of seal used having tie-wrap sealing means

Definitions

  • the present invention relates to a method for manufacturing of pull-through seals according to the preamble of claim 1.
  • pull seals are made of plastic manufactured by spraying.
  • Such a pull-through seal has a base body in construction with attached closure body and a protruding from the base body tongue leading away, Tip inserted through the closure body when in use can be.
  • the tongue usually points Restraint in the form of knobs or teeth, which is the passage of the tongue through the closure body allow in one direction. In the opposite But direction is by arranged in the closure body Blocking agents that act on the tongue restraint act, a retraction of the tongue impossible.
  • Pull-through seals are so-called one-way means, i.e. you can usually only used once and the Closure can only be released by destruction.
  • the object of the present invention was now to a process for the production of pull-through seals To find plastic that allows practically any To produce dimensions of tongues without additional effort.
  • the tongue of the pull-through seal in the Extrusion processes can advantageously be practically any Dimensions, especially in length, can be achieved.
  • Instead of manufacturing of many different molds for each one needed Dimensioning can be done with a single extrusion tool and the use of a standardized body practically all requirements for the pull-through seals a smaller one compared to the conventional method Effort to be covered.
  • Another advantage is the possibility of using it of polyethylene as plastic for the manufacture of the Pull-through seal, since the strength is achieved through the stretching process is increased by aligning the plastic molecules and practically the same values as with conventional pull-through seals made from polyamide at a much lower cost.
  • FIG. 2 The production process according to the invention is shown schematically in FIG a pull-through seal 1 made of plastic.
  • the tongue of the Pull seal made by preferably a trapezoidal Profile 2 is extruded, which immediately after the extrusion is profiled.
  • the cross section of the profile strand 2 is shown in FIG. 2.
  • the profiling is preferably carried out via a profiled Wheel 3, which is preferably on the short top of the extruded profile strand 2 is pressed on in a rolling manner.
  • a rack-shaped profile strand 4 is generated, as shown in Figure 3.
  • the profile surveys 4 ' preferably have a regular distance A.
  • This profile strand 4 then becomes a stretching process 5 supplied, which the length of the profile strand 4th preferably doubled. Again, this can be advantageous done continuously, or alternatively for those already Profile pieces cut to the required dimension can be applied individually.
  • the stretching process 5 the profiled profile strand 4 leads on the one hand to a Alignment of the plastic molecules, which increases the strength.
  • This can advantageously be polyethylene as a plastic be used, which is cheaper than that Polyamide conventionally used in the pressure spray process, but practically the same strength values due to the stretching how the polyamide achieved. This will be preferred by stretching the profile at a temperature of 60 ° C reached. Another of these procedures lies in that the material practically without tensile load Elongation breaks when the breaking limit is reached, which is an invisible Manipulation of the pull-through seal practically impossible.
  • the base body 8 can, for example, in a conventional manner be produced by pressure spraying and thereby either in one piece with a closure body 9 be equipped, or this will be in an additional Process step similar to the tongue 7 also separately on the Base body sprayed on.
  • This latter process step in turn preferably enables an increased design Freedom in the design of pull-through seals 1 by the closure body 9, for example, in several parts and especially not only from one material but from one Composition of different materials can exist. So can in particular a closure body 9 with a metal insert be used, which has an increased tensile strength and Tamper-evident.
  • Figure 5 is the supervision shown on a pull-through seal 1 produced in this way.
  • a pull-through seal 1 produced in this way has a very large high security against manipulation, since after manipulation, such as cutting the tongue 7, this Manipulation does not simply undo or invisible can be made. If preferably polyethylene is used an interface cannot simply pass through invisible bonding can be connected again. When using the material simply melts from heat and can not simply welded as a stable connection.
  • the manufacturing process presented can thus be universal for the production of pull seals 1 with different Tongue lengths and, if necessary, different closure bodies 9 are used and require only a minimal Number of tools. It is particularly advantageous that not for each different length of tongue required an own, special injection mold has to be manufactured and thus the procedure is based on the cost-effective and economical production of small quantities in special sizes suitable or designs. In addition, a cheaper one Plastic like polyethylene with undiminished Strength values of the pull-through seal 1 are used, than this in conventional injection molding due to the use of polyamide.

Claims (8)

  1. Procédé pour produire des fermetures de sécurité à languette traversante (1) en matière plastique, comportant un corps de base (8) avec un corps de fermeture (9) et une languette (7) s'étendant dudit corps de base (8), caractérisé en ce que ladite languette (7) est produite par extrusion et profilage subséquent suivi d'un allongement en direction longitudinale du profil de la languette et en ce que le profil de languette fini est ensuite relié au corps de base (8) par moulage par injection.
  2. Procédé selon la revendication 1, caractérisé en ce que la languette (7) est extrudé avec une section rectangulaire ou trapézoïdale.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le profil extrudé (2) est profilé, de préférence seulement sur un côté, directement après l'extrusion au moyen d'une roue (3) profilée.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le profil de languette profilé (4) est allongé en longueur par un facteur deux ou plus grand.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le profil de languette profilé (4) est refroidi avant son allongement en dessous de la température de résistance à la chaleur, de préférence à environ 60°C.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que le corps de fermeture (9) est appliqué sur le corps de base (8) par moulage par injection.
  7. Procédé selon la revendication 6, caractérisé en ce que l'on applique par moulage par injection un corps de fermeture (9) en plusieurs parties, de préférence faites en matériaux différents.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que la matière plastique utilisée est le polyéthylène.
EP99959165A 1999-12-21 1999-12-21 Procede pour produire des fermetures de securite a languette traversante Expired - Lifetime EP1240640B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1999/000618 WO2001046936A1 (fr) 1999-12-21 1999-12-21 Procede pour produire des fermetures de securite a languette traversante

Publications (2)

Publication Number Publication Date
EP1240640A1 EP1240640A1 (fr) 2002-09-18
EP1240640B1 true EP1240640B1 (fr) 2003-06-04

Family

ID=4551755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99959165A Expired - Lifetime EP1240640B1 (fr) 1999-12-21 1999-12-21 Procede pour produire des fermetures de securite a languette traversante

Country Status (4)

Country Link
US (1) US6936207B1 (fr)
EP (1) EP1240640B1 (fr)
AU (1) AU1646100A (fr)
WO (1) WO2001046936A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005059077A1 (de) * 2005-12-10 2007-06-14 Rudolf Held Gmbh & Co. Kg Kunststoff-Sicherheitsplombe

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582453A (en) * 1969-05-07 1971-06-01 Du Pont Grooved strapping
CH534085A (fr) * 1971-02-01 1973-02-28 Ipp Ind Polymer Proc S A Lien et procédé pour sa fabrication
US3753586A (en) * 1972-04-24 1973-08-21 United Seal Co Flexible synthetic resin seal having manually deformable closure means
FR2264413B1 (fr) * 1974-03-12 1978-06-30 Bowthorpe Hellermann Ltd
US4866816A (en) * 1974-04-19 1989-09-19 Panduit Corp. One-piece cable tie
US4214349A (en) * 1978-11-30 1980-07-29 Midland-Ross Corporation Tie wrap
US4342477A (en) * 1980-02-25 1982-08-03 Dickey Manufacturing Company Security seal with break-off screw head securement
US4574434A (en) * 1984-08-20 1986-03-11 Shupe & March Manufacturing, Inc. Banding system and components thereof
DE3525351C2 (de) * 1985-07-16 1994-09-15 Raymond A Gmbh & Co Kg Kabelbinder
GB2264463B (en) * 1992-02-28 1995-05-10 Acme Seals Improvements in or relating to security seals
GB2265114A (en) * 1992-03-16 1993-09-22 Deutsher Pty Ltd Tamper-proof security seal with detent rotatable in housing
BR9201127A (pt) * 1992-03-31 1993-10-05 Elc Prod Seguranca Ind Sistema de lacre,seio de seguranca e sistema de moldagem em uma matriz de injecao para a fabricacao de um sistema de lacre
US5836053A (en) * 1996-10-01 1998-11-17 Avery Dennison Corporation Cable tie
EP0908863A1 (fr) * 1997-10-07 1999-04-14 Stoba Ag Sceau enfilable
IT1314471B1 (it) * 1999-01-25 2002-12-18 Elc Prod Seguranca Ind Manufatto di plastica iniettata con identificazione individualizzataed uno stampo per la sua fabbricazione
US6536082B2 (en) * 2001-08-09 2003-03-25 Avery Dennison Corporation Tamper-proof tie
US20030066169A1 (en) * 2001-10-09 2003-04-10 Chiou Shyong Liu Fastening belt capable of disassembling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005059077A1 (de) * 2005-12-10 2007-06-14 Rudolf Held Gmbh & Co. Kg Kunststoff-Sicherheitsplombe

Also Published As

Publication number Publication date
WO2001046936A1 (fr) 2001-06-28
EP1240640A1 (fr) 2002-09-18
US6936207B1 (en) 2005-08-30
AU1646100A (en) 2001-07-03

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