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WO2008136036A2 - Composant pour lunettes et son procédé de fabrication - Google Patents

Composant pour lunettes et son procédé de fabrication Download PDF

Info

Publication number
WO2008136036A2
WO2008136036A2 PCT/IT2008/000302 IT2008000302W WO2008136036A2 WO 2008136036 A2 WO2008136036 A2 WO 2008136036A2 IT 2008000302 W IT2008000302 W IT 2008000302W WO 2008136036 A2 WO2008136036 A2 WO 2008136036A2
Authority
WO
WIPO (PCT)
Prior art keywords
component
core
thermoplastic material
melting temperature
layer
Prior art date
Application number
PCT/IT2008/000302
Other languages
English (en)
Other versions
WO2008136036A3 (fr
Inventor
Giulio Sabadotto
Original Assignee
Officine Sabadotto S.N.C. Di Sabadotto Giulio & C.
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 Officine Sabadotto S.N.C. Di Sabadotto Giulio & C. filed Critical Officine Sabadotto S.N.C. Di Sabadotto Giulio & C.
Publication of WO2008136036A2 publication Critical patent/WO2008136036A2/fr
Publication of WO2008136036A3 publication Critical patent/WO2008136036A3/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00—Constructions of non-optical parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D12/00—Producing frames
    • B29D12/02—Spectacle frames
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00—Constructions of non-optical parts
    • G02C5/008—Spectacles frames characterized by their material, material structure and material properties
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00—Constructions of non-optical parts
    • G02C5/14—Side-members
    • G02C5/18—Side-members reinforced

Definitions

  • the present invention regards a component for spectacles, in particular a temple or the frame, and the method for making it.
  • the Japanese patent JP 2005189489 describes a temple for spectacles on whose surface, facing inwards, a cavity is realised. Glued on such cavity is a leather element. In this manner, the temple has the exposed surface covered, though only partially, by the leather element.
  • the French patent FR 2 575 106 describes a method for making a frame entirely coated by a leather layer. The method first provides for gluing a leather layer on each side of a plastic rigid sheet, and subsequently the cutting of the sheet thus made according to a preset shape, in such a manner to obtain the frame.
  • the frame thus realised has a poor flexibility, due to the rigidity of leather which does not allow it to bend. Furthermore, simple gluing of the three layers does not guarantee stable joining, especially if the frame is subjected to high temperatures.
  • the main objective of the invention is to provide a component for spectacles which is flexible and with an external leather layer. Alternatively, fabric material can be used in place of leather, or else a combination of both can be used. Preferably, the component is stably joined to a framework.
  • a component for spectacles characterised in that it comprises at least one layer made of thermoplastic material with a first melting temperature over-injected on a leather and/or fabric strip.
  • the strips if several, can be arranged adjacent to each other or not, and made up of one and/or the other material.
  • a reinforcement core for example made of metal, can be dipped into the layer of thermoplastic material, thus conferring greater sturdiness to the entire structure. Therefore, the component is flexible, in that the thermoplastic material in which the reinforcement core is dipped is flexible.
  • the reinforcement core can be spaced from the leather layer by one or more spacer elements, preferably made of thermoplastic material with a lower melting temperature with respect to the layer over- injected on the strip.
  • the objectives of the invention are attained through a method for making a component for spectacles, characterised in that a covering layer made of thermoplastic material, having a first melting temperature, is over-injected on the leather and/or fabric strip.
  • the method can comprise a further stage of dipping the reinforcement core into the layer of thermoplastic material.
  • one or more spacer elements made of thermoplastic material having a lower melting temperature with respect to the one of the covering layer can be over-injected and arrange the assembly thus obtained on said strip before proceeding to perform the over-injection of said covering layer.
  • the spacer elements melt and amalgamate with it, ending up being indistinguishable in the finished product.
  • Fig. 1 is an axonometric top view of a temple for spectacles according to the invention
  • a temple for spectacles 10 comprises a leather strip 12 over- injected on which, through known techniques, is a covering layer 16 made of thermoplastic material.
  • a reinforcement core 14 is dipped, forming an extended shape similar to the temple 10. The core 14 is provided on the strip 12 before the over-injection of the layer 16.
  • the core 14 is spaced from the leather strip 12 by means of spacer elements 18 made of thermoplastic material over-injected on the core 14. In this manner, the core remains arranged, after the cooling of the layer 16, approximately at the centre of the layer, where it performs its bearing functions best.
  • the spacer elements 18 made of thermoplastic material, for example polyurethane, have a melting temperature Tl corresponding to a hardness of the solidified material comprised between 60 and 70 Shores, preferably equivalent to 65 Shores.
  • the core 14 comprises one or more through openings 20 (see fig. 3) which facilitate the distribution and bonding of thermoplastic material during the step of injection of the layer 16 and lighten the temple 10 at the same time.
  • the spacer elements 18 are made of thermoplastic material, for example polyurethane, having a lower melting temperature T2 with respect to the melting temperature Tl of the layer 16. In this manner, when the layer 16 is over-injected on the strip 12, the spacer elements 18 melt and amalgamate with the same layer 16.
  • trie spacer elements 18 have a streamlined and extended shape, and they are arranged spaced from each other along the core 14. It can be observed that the spacer elements 18 are perpendicular with respect to the direction of longitudinal extension of the core 14, and the closer the elements are to the tip of the core 14, the smaller they get.
  • the shape and direction of the spacer elements 18 can also be different from the one shown. In fig. 3, the spacer elements completely surround a portion of the core 14, but realising only a part of them beneath it might be enough to form a support for the core 14 and raise it with respect to a support surface (the strip 12).
  • the method for realising a temple 10 comprises the injection moulding step of a layer 16 made of thermoplastic material with a melting temperature Tl on the surface of the leather strip 12.
  • a reinforcement core can be integrated in the temple thus obtained by overlapping it on the strip 12.
  • the method also provides for the following optional steps of:
  • the spacer elements As variants of the invention, it is possible to use for example for the spacer elements, separately or combined, the characteristics described, for example some of them facing one direction and the others another, or some arranged in contact with the core but without surrounding it or only fixed in a light manner.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Eyeglasses (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un composant (10) pour lunettes, le composant comprenant au moins une couche de recouvrement (16) faite d'une matière thermoplastique surinjectée sur une bande de cuir et/ou de tissu (12).
PCT/IT2008/000302 2007-05-04 2008-05-05 Composant pour lunettes et son procédé de fabrication WO2008136036A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTV20070076 ITTV20070076A1 (it) 2007-05-04 2007-05-04 Componente di occhiali e procedimento per la sua realizzazione
ITTV2007A000076 2007-05-04

Publications (2)

Publication Number Publication Date
WO2008136036A2 true WO2008136036A2 (fr) 2008-11-13
WO2008136036A3 WO2008136036A3 (fr) 2008-12-31

Family

ID=39800633

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2008/000302 WO2008136036A2 (fr) 2007-05-04 2008-05-05 Composant pour lunettes et son procédé de fabrication

Country Status (2)

Country Link
IT (1) ITTV20070076A1 (fr)
WO (1) WO2008136036A2 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBL20090004A1 (it) * 2009-02-12 2010-08-13 Emanuele Farinazzo Montatura occhiali in stoffa
ITPD20110202A1 (it) * 2011-06-17 2012-12-18 Paolo Casciaro Procedimento per lo stampaggio di aste per occhiali in materiale polimerico e composito ed asta per occhiali ottenuta con tale procedimento.
ITVR20120141A1 (it) * 2012-07-09 2014-01-10 Brooks England Ltd Montatura per occhiali e metodo per la sua realizzazione
ITMI20131336A1 (it) * 2013-08-05 2015-02-06 Luxottica Srl Lastra per la realizzazione di articoli, particolarmente occhiali e simili, e relativo procedimento di realizzazione.
ITPD20130265A1 (it) * 2013-09-27 2015-03-28 Paolo Casciaro Asta per occhiali perfezionata
ITUB20161097A1 (it) * 2016-02-26 2017-08-26 Hapter S R L Metodo per produrre un oggetto comprendente un’anima metallica e un rivestimento esterno in materiale polimerico, e oggetto ottenuto
ITUA20163691A1 (it) * 2016-05-23 2017-11-23 Mem S R L Procedimento per la fabbricazione di aste per occhiali in materiale polimerico ed asta per occhiali ottenuta con tale procedimento.
IT201600097887A1 (it) * 2016-09-29 2018-03-29 Optimae Srl Montatura per occhiali in materiale polimerico termoplastico e relativo processo di produzione

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1223653A (en) * 1969-02-04 1971-03-03 Optipatent Ag Split mould for manufacturing synthetic resin mouldings
EP0042712A3 (fr) * 1980-06-23 1982-03-10 John Blackstone Lunettes et moyens pour les maintenir en position d'utilisation
FR2575106B3 (fr) * 1984-12-21 1987-06-26 Dayde Thierry Procede de fabrication d'une paire de lunettes, le dispositif permettant de le mettre en oeuvre et les lunettes obtenues selon ce procede
FR2628538B1 (fr) * 1988-03-11 1990-12-28 Essilor Int Structure composite deformable, structure composite rigide resultant d'une telle structure composite deformable, et applications, notamment aux montures de lunettes
DE3935397A1 (de) * 1989-10-24 1991-04-25 Dietrich Schneider Verfahren zur herstellung von brillenfassungen mit einem schichtenaufbau sowie eine brillenfassung
DE102006044475A1 (de) * 2006-09-21 2008-04-03 Christoph Egger Verkleideter Brillenbügel
US7261409B1 (en) * 2006-12-29 2007-08-28 Taber John A Jack Eyeglass frame with integral channel to receive decorative inserts

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBL20090004A1 (it) * 2009-02-12 2010-08-13 Emanuele Farinazzo Montatura occhiali in stoffa
ITPD20110202A1 (it) * 2011-06-17 2012-12-18 Paolo Casciaro Procedimento per lo stampaggio di aste per occhiali in materiale polimerico e composito ed asta per occhiali ottenuta con tale procedimento.
ITVR20120141A1 (it) * 2012-07-09 2014-01-10 Brooks England Ltd Montatura per occhiali e metodo per la sua realizzazione
US9835874B2 (en) 2013-08-05 2017-12-05 Luxottica S.R.L. Sheet for manufacturing articles, particularly glasses and the like, and associated manufacturing process
WO2015018692A1 (fr) * 2013-08-05 2015-02-12 Luxottica S.R.L. Feuille pour la fabrication d'articles, en particulier des verres et analogues, et procédé de fabrication associé
ITMI20131336A1 (it) * 2013-08-05 2015-02-06 Luxottica Srl Lastra per la realizzazione di articoli, particolarmente occhiali e simili, e relativo procedimento di realizzazione.
ITPD20130265A1 (it) * 2013-09-27 2015-03-28 Paolo Casciaro Asta per occhiali perfezionata
ITUB20161097A1 (it) * 2016-02-26 2017-08-26 Hapter S R L Metodo per produrre un oggetto comprendente un’anima metallica e un rivestimento esterno in materiale polimerico, e oggetto ottenuto
WO2017145043A1 (fr) * 2016-02-26 2017-08-31 Hapter S.R.L. Procédé pour produire un objet comprenant un noyau métallique rigide et un revêtement externe en matériau polymère, et objet obtenu ainsi
CN108700754A (zh) * 2016-02-26 2018-10-23 哈普特有限公司 用于制造包括刚性金属主体部和聚合物材料外涂层的物体的方法以及由此获得的物体
JP2019507901A (ja) * 2016-02-26 2019-03-22 ハプター エス．アール．エル． 剛性金属コア及びポリマー材料外部被膜を備える物体の製造方法及び得られる物体
US11106055B2 (en) 2016-02-26 2021-08-31 Harter S.R.L. Method for producing an object comprising a rigid metal core and a polymer-material external coating, and object obtained therewith
ITUA20163691A1 (it) * 2016-05-23 2017-11-23 Mem S R L Procedimento per la fabbricazione di aste per occhiali in materiale polimerico ed asta per occhiali ottenuta con tale procedimento.
IT201600097887A1 (it) * 2016-09-29 2018-03-29 Optimae Srl Montatura per occhiali in materiale polimerico termoplastico e relativo processo di produzione

Also Published As

Publication number Publication date
ITTV20070076A1 (it) 2008-11-05
WO2008136036A3 (fr) 2008-12-31

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