EP1017259A2 - Méthode pour revêtir et isoler un afficheur, notamment pour des instruments de contrôle électroniques - Google Patents

Méthode pour revêtir et isoler un afficheur, notamment pour des instruments de contrôle électroniques Download PDF

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Publication number
EP1017259A2
EP1017259A2 EP99122044A EP99122044A EP1017259A2 EP 1017259 A2 EP1017259 A2 EP 1017259A2 EP 99122044 A EP99122044 A EP 99122044A EP 99122044 A EP99122044 A EP 99122044A EP 1017259 A2 EP1017259 A2 EP 1017259A2
Authority
EP
European Patent Office
Prior art keywords
cladding
cover
rigid part
box
instrument
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.)
Granted
Application number
EP99122044A
Other languages
German (de)
English (en)
Other versions
EP1017259B1 (fr
EP1017259B9 (fr
EP1017259A3 (fr
Inventor
Bruno De Bastiani
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.)
ELETTROPLAST S.R.L.
Original Assignee
ELETTROPLAST 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 ELETTROPLAST Srl filed Critical ELETTROPLAST Srl
Publication of EP1017259A2 publication Critical patent/EP1017259A2/fr
Publication of EP1017259A3 publication Critical patent/EP1017259A3/fr
Publication of EP1017259B1 publication Critical patent/EP1017259B1/fr
Application granted granted Critical
Publication of EP1017259B9 publication Critical patent/EP1017259B9/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00Apparatus or processes specially adapted for the manufacture of electric switches
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02Details
    • H01H13/12Movable parts; Contacts mounted thereon
    • H01H13/14Operating parts, e.g. push-button
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H2011/0081Apparatus or processes specially adapted for the manufacture of electric switches using double shot moulding, e.g. for forming elastomeric sealing elements on form stable casing

Definitions

  • the present invention relates to a method for applying and forming a thermoplastic cladding to displays and buttons of covers and/or boxes for electrical or electronic instruments, particularly control, actuation and adjustment instruments and instruments for the most disparate functions.
  • Each box of these instruments must be fixed to the panel or subframe so as to ensure that it is hermetic with respect to external agents and ensure that the cladding is transparent, in order to view the measurable data, and is flexible so as to be able to apply the necessary pressure to the various buttons of the instruments that compose it.
  • these characteristics are generally achieved by cladding the display and the outer surface of the cover with a transparent and sufficiently flexible film which is associated with the cover by means of a frame provided with adapted screw or snap-on couplings which allow to anchor it to the box.
  • the current art further provides for the interposition of adapted gaskets between the cover and the edge of the box, as well as between the edge of the box and the edge of the compartment for housing it in the panel, in order to ensure the prescribed hermetic sealing of the panel with respect to external agents.
  • the aim of the present invention is to provide a cover or a box, for instruments of the exemplified type, which ensures the best conditions in terms of hermetic sealing and of adequate flexibility and transparency, regardless of the skill of the installer.
  • an object of the present invention is to minimize the number of parts to be produced and associated, eliminating the need for cladding containment frames.
  • Another object of the present invention is to minimize the time and cost for assembling the cladding on the cover or part of the box to be applied to the panel and be made transparent, flexible and hermetic.
  • a characteristic of the present invention is that the cladding of said covers or boxes is performed by injection-molding with multi-component materials, one or more materials being meant for injection in order to form one or more rigid parts for fixing, supporting and viewing the elements of the individual specific instruments, an additional material being meant to externally clad the previously molded rigid parts and also act as a gasket, in order to hermetically seal the box that contains the instruments applied to the control panel.
  • a cover A of a box B is constituted by a rigid part 10, made of a suitable transparent material, and by a cladding 20, made of a suitable soft and flexible material, and the two parts 10, 20 are interconnected and produced in two different steps of a single process for molding with two-component materials, in order to obtain a cover A which is adapted to be associated with the box B of the instrument, ensuring the required qualities of transparency, hermetic sealing and flexibility.
  • the cover and the box are made of a rigid material, such as the plastic material known commercially as polycarbonate or by the trade-name Bayblend of the German company Bayer.
  • Such material is used in its semitransparent formulation, known for example by the trade-name Makrolon of the German company Bayer, for the cover.
  • the cladding is made of soft and/or flexible material, for example known commercially as thermoplastic rubber or polyurethane or by the trade-name Desmopan of the German company Bayer.
  • each molding step can be performed independently, with a mold which provides for the formation of a first element and with successive molds into which the already-formed elements are inserted, or the various steps can be performed in succession with a molding machine in which in any case a first molded element is associated and included in the molding of the successive elements.
  • a mold for forming the rigid part 10 and a second mold for forming the cladding 20, associated with the preceding rigid part 10, are prepared.
  • the mold for the rigid part 10 must have a perimetric recess 11 which surrounds for example a flat transparent part 12 of the cover A.
  • the perimetric recess 11 is provided by forming an outer wall 13 which has, on its lower perimetric rim, a perimetric groove 14 and a suitable number of locators 15 which protrude at right angles with respect to said groove toward the inside of the cover and are suitable to allow the snap-on engagement of the rigid part 10 on the rim B1 of the box B.
  • the rigid part 10 advantageously has, on the flat transparent part 12, a groove 16 adapted to delimit the region where the cladding 20 is applied around the display viewing surface that the box B is meant to contain.
  • the second mold to be prepared in order to form the cladding 20 of the cover A provides for a surface for resting against the internal surface of the rigid part 10, such as to leave free the outer wall 13, the groove 14 and its locators 15.
  • the mold further has a suitable lateral filling volume in order to form an external cladding wall 21, with a lower rim 22 provided with a perimetric tooth 23, produced by filling the groove 14 of the rigid part 10.
  • the same mold then provides for the filling of a suitable volume in order to obtain a region 24 for partially cladding the outer surface of the flat transparent part 12, obtaining at least one free space 25 delimited by the groove 16 provided in the rigid part 10.
  • the plastic material is injected in a subsequent step in order to form the rigid part 10 and/or a semitransparent part.
  • the rigid part 10 is accommodated in the mold in order to form the cladding 20, so as to ensure the formation of the outer cladding walls 21 and of the lower rim 22 with a first perimetric tooth 23 and of the partial cladding region 24 with the free space 25.
  • Said free space 25 is delimited by the groove 16 and the partial cladding region 24 has a second tooth 26.
  • the cover A thus formed can be easily applied to the box B after the chosen control instruments have been inserted therein, with an optional display to be arranged at the free space 25 for perfect reading thereof.
  • a hole 17 is provided in the flat transparent portion 12 of the rigid part 10, so as to allow the button to pass and allow the passage of the mold in order to form the internal part of the flexible cladding 27.
  • the second mold for forming the cladding 20 has a suitable shaping of the region of the flexible cladding 27; the remainder of its shape remains unchanged.
  • covers A which are composed for example of a transparent rigid part associated with an opaque rigid part and are clad with a soft or flexible cladding 20, forming a plurality of molds and consequently extending the forming steps, always and in any case according to the illustrated method.

Landscapes

  • Casings For Electric Apparatus (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Liquid Crystal (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
EP99122044A 1998-12-30 1999-11-15 Méthode pour revêtir et isoler un afficheur, notamment pour des instruments de contrôle électroniques Expired - Lifetime EP1017259B9 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBL980020 1998-12-30
IT1998BL000020A IT1305747B1 (it) 1998-12-30 1998-12-30 Metodo di rivestimento ed isolazione dei display, particolarmente perstrumenti elettronici di controllo.

Publications (4)

Publication Number Publication Date
EP1017259A2 true EP1017259A2 (fr) 2000-07-05
EP1017259A3 EP1017259A3 (fr) 2001-01-17
EP1017259B1 EP1017259B1 (fr) 2005-03-09
EP1017259B9 EP1017259B9 (fr) 2006-01-18

Family

ID=11337058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122044A Expired - Lifetime EP1017259B9 (fr) 1998-12-30 1999-11-15 Méthode pour revêtir et isoler un afficheur, notamment pour des instruments de contrôle électroniques

Country Status (4)

Country Link
EP (1) EP1017259B9 (fr)
AT (1) ATE290767T1 (fr)
DE (1) DE69924090T2 (fr)
IT (1) IT1305747B1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003019306A2 (fr) * 2001-08-24 2003-03-06 Honeywell International Inc. Indicateur visuel de module entree/sortie d'unite de commande et dispositif de securite
WO2005076693A2 (fr) * 2003-12-12 2005-08-25 Nokia Corporation Etui de verrouillage pour terminaux mobiles
EP1662207A1 (fr) * 2004-11-30 2006-05-31 Diehl AKO Stiftung & Co. KG Dispositiv de contrôle pour un appareil ménager
EP1855365A1 (fr) * 2006-05-09 2007-11-14 Raycap Corporation Module de protection de surtension et procédé pour la fabrication de celui-ci
CN100580816C (zh) * 2004-11-30 2010-01-13 迪尔阿扣基金两合公司 用于家用电器的操作设备
US20160102897A1 (en) * 2014-10-14 2016-04-14 Carel Industries S.p.A. Control device for refrigeration and conditioning systems
US9605701B2 (en) 2012-07-23 2017-03-28 Fanuc Corporation Front sheet fixing structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011017408B4 (de) * 2011-04-18 2016-07-14 Webasto Ag Spritzgießmaschine für Kunststoffformteil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747536A1 (de) * 1977-10-22 1979-04-26 Diehl Gmbh & Co Gehaeuse fuer ein elektrisch betriebenes geraet mit einer anzeigeeinrichtung, insbesondere digitalanzeigeeinrichtung
DE4120133A1 (de) * 1991-06-19 1992-12-24 Uhl Sportartikel Karl Bauteil und verfahren zur herstellung eines solchen
US5175873A (en) * 1990-12-24 1992-12-29 Motorola, Inc. Water resistant selective call receiver
US5386084A (en) * 1993-07-22 1995-01-31 Ii Morrow Inc. Electronic device enclosure
DE4405764A1 (de) * 1994-02-23 1995-08-24 Braun Ag Gehäusewand eines Gehäuses für ein Gerät des persönlichen Bedarfs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747536A1 (de) * 1977-10-22 1979-04-26 Diehl Gmbh & Co Gehaeuse fuer ein elektrisch betriebenes geraet mit einer anzeigeeinrichtung, insbesondere digitalanzeigeeinrichtung
US5175873A (en) * 1990-12-24 1992-12-29 Motorola, Inc. Water resistant selective call receiver
DE4120133A1 (de) * 1991-06-19 1992-12-24 Uhl Sportartikel Karl Bauteil und verfahren zur herstellung eines solchen
US5386084A (en) * 1993-07-22 1995-01-31 Ii Morrow Inc. Electronic device enclosure
DE4405764A1 (de) * 1994-02-23 1995-08-24 Braun Ag Gehäusewand eines Gehäuses für ein Gerät des persönlichen Bedarfs

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003019306A2 (fr) * 2001-08-24 2003-03-06 Honeywell International Inc. Indicateur visuel de module entree/sortie d'unite de commande et dispositif de securite
WO2003019306A3 (fr) * 2001-08-24 2004-03-18 Honeywell Int Inc Indicateur visuel de module entree/sortie d'unite de commande et dispositif de securite
WO2005076693A2 (fr) * 2003-12-12 2005-08-25 Nokia Corporation Etui de verrouillage pour terminaux mobiles
WO2005076693A3 (fr) * 2003-12-12 2006-03-23 Nokia Corp Etui de verrouillage pour terminaux mobiles
US7236588B2 (en) 2003-12-12 2007-06-26 Nokia Corporation Interlocking cover for mobile terminals
EP1662207A1 (fr) * 2004-11-30 2006-05-31 Diehl AKO Stiftung & Co. KG Dispositiv de contrôle pour un appareil ménager
CN100580816C (zh) * 2004-11-30 2010-01-13 迪尔阿扣基金两合公司 用于家用电器的操作设备
EP1855365A1 (fr) * 2006-05-09 2007-11-14 Raycap Corporation Module de protection de surtension et procédé pour la fabrication de celui-ci
US9605701B2 (en) 2012-07-23 2017-03-28 Fanuc Corporation Front sheet fixing structure
US20160102897A1 (en) * 2014-10-14 2016-04-14 Carel Industries S.p.A. Control device for refrigeration and conditioning systems
US10544970B2 (en) * 2014-10-14 2020-01-28 Carel Industries S.p.A. Control device for refrigeration and conditioning systems

Also Published As

Publication number Publication date
ATE290767T1 (de) 2005-03-15
DE69924090D1 (de) 2005-04-14
DE69924090T2 (de) 2006-02-02
EP1017259B1 (fr) 2005-03-09
IT1305747B1 (it) 2001-05-16
ITBL980020A1 (it) 2000-06-30
EP1017259B9 (fr) 2006-01-18
ITBL980020A0 (it) 1998-12-30
EP1017259A3 (fr) 2001-01-17

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