EP0443691B1 - Apparatus for setting a wire in a plastic film - Google Patents

Apparatus for setting a wire in a plastic film Download PDF

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Publication number
EP0443691B1
EP0443691B1 EP91200378A EP91200378A EP0443691B1 EP 0443691 B1 EP0443691 B1 EP 0443691B1 EP 91200378 A EP91200378 A EP 91200378A EP 91200378 A EP91200378 A EP 91200378A EP 0443691 B1 EP0443691 B1 EP 0443691B1
Authority
EP
European Patent Office
Prior art keywords
wire
plastic film
elements
setting
contact
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
EP91200378A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0443691A2 (en
EP0443691A3 (en
Inventor
Seppo Lammela
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.)
Pilkington Automotive Finland Oy
Original Assignee
Lamino Oy
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 Lamino Oy filed Critical Lamino Oy
Publication of EP0443691A2 publication Critical patent/EP0443691A2/en
Publication of EP0443691A3 publication Critical patent/EP0443691A3/en
Application granted granted Critical
Publication of EP0443691B1 publication Critical patent/EP0443691B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H05B3/86—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields the heating conductors being embedded in the transparent or reflecting material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the present invention relates to an apparatus for setting a wire in a plastic film, which is particularly useful in the production of heatable laminated glass, wherein a plastic film or an intermediate film, fitted with waveformed wires, is typically laminated between glass sheets, the assembly being intended for use e.g. as a motor vehicle wind screen.
  • the publication US 3,522,651 discloses a method, wherein a rotating frame assembly is fitted with resistance wires adjacent to each other. At the following stage of the method, the wires carried by said frame assembly are all waved in a single operation by means of a cylindrical toothed roller. At the following separate operating stage, the waved wires removed from said frame assembly are secured to a glass surface by means of a sprayable chemical.
  • a useful wire is characterized by being thin and prone to breaking as well as inconvenient to handle. Therefore, in a method disclosed in the publication GB 1,392,736, the simultaneous handling of a plurality of wires leads to a number of practical problems. For example, breaking of an individual wire or its running out on a particular supply reel it difficult to notice.
  • the wires must be synchronized and arranged according to the width and/or desired resistance characteristics of a plastic film in each individual production series.
  • An apparatus used in the method disclosed in the publication US 3,522,651 requires a lot of space particularly due to independent stages of operation. It is of course obvious that production involving several stages of operation is not efficient.
  • the manufacture of high-quality laminated glasses with the technique described in the cited publication is very tedious and inconvenient. Particularly due to the spraying of a chemical agent, the method also involves environmental hazards and, thus, application of the method requires labour protective measures.
  • An object of this invention is to provide a decisive improvement on the above drawbacks and, thus, to advance the available prior art.
  • an apparatus of the invention is defined in claim 1.
  • An apparatus of the invention includes a base block 1, set on a fixed supporting structure, such as a floor, and provided with guides or the like elements 2 on top of it for carrying a wire supply frame 3 during the application of this method in the longitudinal direction of guides 2.
  • the apparatus further includes a cylindrical drum or a cylinder 4 which is carried by support brackets 5 or the like elements upon axle stubs or the like 6 projecting from the ends of the drum 4, said brackets being mounted adjacent to base block 1 e.g. on a fixed supporting structure, such as a floor.
  • the drum has a circular cross-section and axle stubs 6 are located centrally relative to the cross-section, said drum 4 rotating around the centre axis 6′ of axle stubs 6 extending in the direction of guides 2 and, thus, in the traveling direction of supply frame 3 (arrow 7).
  • the base block 1 is provided e.g. with belt drive 8 or a like driving mechanism to operate at the end of at least one of the axle stubs 6.
  • the external surface of drum 4 is provided with a plastic film 9 e.g. by using suitable fastening arrangements, such as providing the drum with a perforation for creating a vacuum effect to adhere plastic film 9 to the external surface of drum 4.
  • suitable fastening arrangements such as providing the drum with a perforation for creating a vacuum effect to adhere plastic film 9 to the external surface of drum 4.
  • the vacuum system is not shown in the drawing as it is obvious to a skilled man. Naturally, it is also possible to use adhesive fastening.
  • a supply frame 3 travels continuously in the direction of an arrow 10 from left to right as seen in the drawing, whereby a waveformed wire 11 coming from the supply frame is set in contact with plastic film 9 on top of said drum 4.
  • the supply frame 3 is provided with a carrier arm 12 or a like, which is fitted with elements 17, 19 for giving said wire 11 a waveform and for setting it in contact with plastic film 9.
  • the carrier arm 12 is preferably adapted to be movable in vertical direction whereby, e.g. especially during the replacement of drum 4, it can be turned out of the way and the drum already provided with wires 11 can be picked up from its position on top of support brackets 5 and another drum 4 to be provided with wires 11 can be placed along with its plastic film 9 to rest upon support brackets 5 and, if necessary, said supply frame 3 can be carried to a starting position at either end of drum 4.
  • the supply frame 3 is provided with a wire spool 13 or a like wire supply from which wire is passed by means of a guiding element 14 mounted on carrier arm 12 to said elements 17 giving the wire a waveform.
  • said elements 17 for creating a waveform include a gear system carried by an auxiliary frame 16 fitted in connection with carrier arm 12, said system comprising two mutually meshed gears, e.g. bevel gears, the line of contact therebetween being substantially perpendicular to the surface of drum 4, whereby the waveformed wire emerges from between the gears in a manner that the waveform extend in the direction of the surface of drum 4.
  • Gears 17a, 17b receive their driving power e.g. from a driving mechanism 18, which is common to both gears and mounted in contact with auxiliary frame 16.
  • a particularly preferred arrangement is that the gears receive a driving power directly from the rotating motion of drum 4, the toothing of at least one of the gears 17a, 17b being in a direct contact with plastic film 9 on the external surface of drum 4.
  • the element for setting a wire in contact with plastic film 9 comprises a press roller or a like 19 receiving its driving force from the rotating motion of drum 4, said roller being located in alignment with the waveform wire whereby, upon rotating around its axle 20, said roller presses waveformed wire 11 into contact with plastic film 9.
  • Press roller 19 is mounted on carrier arm 12 by means of an auxiliary link 21.
  • the drawing illustrates schematically an electrical system for heating a resistance wire especially between gear assembly 17 and press roller 19, the setting of a resistance wire on a plastic film being effected by the application of thermal effect and assisted by press roller 19.
  • Conductor wires 22 and 23 are connected on the one hand to the gear assembly and on the other hand to the press roller, both elements being made of an electrically conducting material.
  • carrier arm 12 said conductors are connected to a current source, e.g. a directcurrent source included in supply frame 3, which creates a potential difference between elements 17 and 19 to effect the heating of waveformed wire 11 as it travels between said elements 17 and 19 whereby, immediately after passing said zone, it will arrive within the range of action of press roller 19 and at this time at least said wire adheres to plastic film 9.
  • one 17a of the gears can be made of a metal or a like electrically conductive material and conductor wire 22 can be connected to said gear 17a.
  • one and the same drum 4 can be simultaneously provided with two or more wires in other words a plurality of carrier arms 12 can be used in parallel or one carrier arm can be fitted with a plurality of elements for supplying the wire, creating the waveform and securing the wire to a plastic film.
  • the base structure carrying said plastic film 9 can be in the shape of an endless belt or a like web structure supported by two or more cylinders (e.g. similar to drum 4) adapted to be rotatable around an axle assembly comprising two or more parallel axles.
  • the element upon which a plastic film 9 is laid has been defined as an endless surface.
  • the method and apparatus offer extensive possibilities for variations in view of adjusting the wire density upon a plastic film 9.
  • a relative adjustment of the traveling speeds of endless belt 4 and supply frame 3 makes it possible to have desired distances from a wire laid in spiral form on endless surface 4 to the adjacent spirals in a direction perpendicular to the traveling direction of endless surface 9.
  • elements 17 and 19 can be located in fixed positions relative to base block 1 of the apparatus and to adapt said endless surface 4 movable in the longitudinal direction of axle assembly 6 during the course of setting a wire.
  • the above alternatives can also be used simultaneously.
  • By reversing the traveling direction of endless surface 4 it is possible to carry out a reciprocating setting of a wire.
  • a wire can also be set on endless surface in the longitudinal direction of an axle assembly, said surface 4 being indexed forward in a manner that a new section of a plastic film to be provided with a wire is located in alignment with elements 17 and 19.

Landscapes

  • Laminated Bodies (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Led Device Packages (AREA)
  • Liquid Crystal (AREA)
  • Insulated Conductors (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP91200378A 1990-02-23 1991-02-21 Apparatus for setting a wire in a plastic film Expired - Lifetime EP0443691B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI900921 1990-02-23
FI900921A FI88782C (fi) 1990-02-23 1990-02-23 Anordning att placera traodet i ett plastfolie

Publications (3)

Publication Number Publication Date
EP0443691A2 EP0443691A2 (en) 1991-08-28
EP0443691A3 EP0443691A3 (en) 1992-05-20
EP0443691B1 true EP0443691B1 (en) 1995-07-26

Family

ID=8529942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91200378A Expired - Lifetime EP0443691B1 (en) 1990-02-23 1991-02-21 Apparatus for setting a wire in a plastic film

Country Status (6)

Country Link
EP (1) EP0443691B1 (fi)
AT (1) ATE125663T1 (fi)
CA (1) CA2036903C (fi)
DE (1) DE69111486T2 (fi)
ES (1) ES2075323T3 (fi)
FI (1) FI88782C (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10310104A1 (de) * 2003-03-06 2004-09-16 Peter Bäumler Verfahren und Vorrichtung zum Herstellen eines Heizfeldes mit einer Schar von wellenförmigen Heizdrähten
DE102006025893A1 (de) * 2006-06-02 2007-12-06 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Vorrichtung zum Ablegen eines dünnen Metalldrahtes auf einer Oberfläche

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101984C2 (de) * 1991-01-24 1995-02-09 Ver Glaswerke Gmbh Vorrichtung zum Ablegen und Fixieren eines Widerstandsdrahtes auf einer thermoplastischen Trägerfolie zur Herstellung einer elektrisch beheizbaren Verbundglasscheibe
GB9425986D0 (en) 1994-12-22 1995-02-22 Pilkington Glass Ltd Electrically heated window
DE19541427A1 (de) 1995-11-07 1997-05-15 Sekurit Saint Gobain Deutsch Verfahren und Vorrichtung zum Ablegen und Fixieren eines dünnen Metalldrahtes auf einer thermoplastischen Folie einer Verbundglasscheibe
GB9601868D0 (en) 1996-01-30 1996-04-03 Pilkington Glass Ltd Electrically heated window
GB9601865D0 (en) 1996-01-30 1996-04-03 Pilkington Glass Ltd Electrically heated window
DE602004002283T2 (de) * 2003-02-24 2007-04-05 Saint-Gobain Glass France Verfahren und vorrichtung zum verlegen von drähten auf einem kunststoffsubstrat
WO2006010346A1 (de) * 2004-07-21 2006-02-02 Baeumler Peter Verfahren und vorrichtung zum herstellen eines heizfeldes mit einer schar von wellenförmigen heizdrähten
GB0427749D0 (en) 2004-12-18 2005-01-19 Pilkington Plc Electrically heated window
EP2063685A1 (en) 2007-11-20 2009-05-27 Pilkington Italia S.p.A. Plastic glazing
US10518490B2 (en) * 2013-03-14 2019-12-31 Board Of Regents, The University Of Texas System Methods and systems for embedding filaments in 3D structures, structural components, and structural electronic, electromagnetic and electromechanical components/devices
US10582619B2 (en) * 2015-08-24 2020-03-03 Board Of Regents, The University Of Texas System Apparatus for wire handling and embedding on and within 3D printed parts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392759A (en) * 1965-09-16 1968-07-16 Barr & Stroud Ltd Electrically heated windows or the like
US3795472A (en) * 1971-07-26 1974-03-05 Gen Electric Apparatus for the production of electrically heated window
CA1043405A (en) * 1976-03-15 1978-11-28 Normand Dery Rear window defrosters and method of installation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10310104A1 (de) * 2003-03-06 2004-09-16 Peter Bäumler Verfahren und Vorrichtung zum Herstellen eines Heizfeldes mit einer Schar von wellenförmigen Heizdrähten
DE10310104B4 (de) * 2003-03-06 2007-04-26 Peter Bäumler Vorrichtung zum Herstellen eines Heizfeldes mit einer Schar von wellenförmigen Heizdrähten
DE102006025893A1 (de) * 2006-06-02 2007-12-06 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Vorrichtung zum Ablegen eines dünnen Metalldrahtes auf einer Oberfläche

Also Published As

Publication number Publication date
ES2075323T3 (es) 1995-10-01
FI88782C (fi) 1993-07-12
FI88782B (fi) 1993-03-31
ATE125663T1 (de) 1995-08-15
FI900921A (fi) 1991-08-24
DE69111486D1 (de) 1995-08-31
CA2036903C (en) 2000-10-03
DE69111486T2 (de) 1996-01-04
EP0443691A2 (en) 1991-08-28
EP0443691A3 (en) 1992-05-20
CA2036903A1 (en) 1991-08-24
FI900921A0 (fi) 1990-02-23

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