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
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01Q—ANTENNAS, i.e. RADIO AERIALS
  • H01Q1/00—Details of, or arrangements associated with, antennas
  • H01Q1/12—Supports; Mounting means
  • H01Q1/1271—Supports; Mounting means for mounting on windscreens
  • H01Q1/1278—Supports; Mounting means for mounting on windscreens in association with heating wires or layers
• • 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 invention relates to a method and a device for laying wires on a plastic substrate, having the characteristics of the preamble of claim 1. It also relates to a device particularly suitable for carrying out the method .
• US-A-5,891,280 describes a method of laying fine wires and the corresponding device, with which the wires are laid on an adhesive film or the like.
• the method is characterized in that the films to be filled are fixed on a rotary drum, which is used for positioning the films under a laying unit, which is movable in a reciprocal movement parallel to the axis of the rotary drum, with a large positioning accuracy like a drawing table.
• the wires can in principle be deposited on tracks
• the installation unit is moved in a reciprocal movement using a longitudinal spindle drive, which allows precise positioning, but which in principle is relatively slow in the case of large movements.
• the method can also be used to connect collector conductors still on the drum with the wires, and to cut the latter.
• An older device known from document DE-A1-42 01 620, for laying fine wires on a thermoplastic film comprises one or more laying units which can / can again be moved in the direction of the axis of a rotating drum carrying the film, in which however the wires are finally wound in a helix around the drum. In the finished product, this does not prove to be a problem because of the very small angle of inclination between the wires placed very short apart from each other. This process ultimately works faster than the technique mentioned above, but it does not allow the laying of the wires following a contour.
• the two types of known devices have in common that the films are fixed to the drums by the application of a pressure difference; the side surfaces of the drums are perforated, and the pressure in the interior space of the hollow drum is reduced relative to atmospheric pressure by suction of air. It is also known to deposit wires on a flat stationary support using a device similar to a drawing table. This device can certainly produce virtually any deposition lines, it is however relatively slow.
• Document EP-B1-613,769 discloses a method for cutting heating wires continuously deposited on a substrate, while document EP-B1-656,257 describes a method for bringing the wires of electrical contact into electrical contact. heating laid parallel to each other with collector conductors oriented transversely with respect thereto.
• the object of the invention is to provide a method, which brings together the advantages of known devices, which allows in particular a high laying speed while following flexible layouts, and to propose a device which is particularly suitable for implementing the process.
• a particular characteristic of this process according to the invention consists in that the support is now reversible (with reversal of the direction of advance or rotation) and also that it is driven with an adjustable speed.
• This opens up considerably wider possibilities on the one hand for laying the wires on the substrate, and on the other hand also for using other tools.
• a flat or curved support of mass as low as possible, which can be driven and positioned very precisely using a positioning drive, preferably a direct drive without play with times of very short reactions.
• Such direct drives are known per se. It is not absolutely necessary that these be activated electrically, but hydraulic or pneumatic positioning drives can also be used.
• This first step in accordance with the invention is completed by the use of a fast and precise linear drive, preferably electric, for the movements of the tools transversely to the direction of movement of the support.
• a fast and precise linear drive preferably electric
• linear motors servomotors driven by a fluid (pneumatic or hydraulic) which can, with their adjusting members, position each tool or several tools synchronously and parallel to each other.
• a fluid pneumatic or hydraulic
• the complete control of the machine can be programmed, so that, to change a laying scheme, only the control program currently in progress must be modified.
• customer-specific laying patterns for example the laying of a set of wires in a generally wedge shape, that is to say that the wires finally cover a substantially trapezoidal surface, owing to the fact that they are not placed in an exactly parallel manner as hitherto, but with slight inclinations relative to each other.
• This effect can also be obtained by orienting, for example, the wires exactly parallel to one another as before in the central area of the surface and by laying partial quantities of wires, in the edge regions of the non-rectangular surface. to be trimmed, with a constant, variable or gradually increasing intermediate angle between neighboring wires.
• the amplitude of undulation of the laid wires can finally be variable. It is certainly known per se to lay the wires in wavy lines, however, with known means (in which the wires are plastically deformed between two toothed wheels engaged immediately before laying on the substrate), only a uniform undulation is obtained, even if it is visually very unclear and that the wires are well hidden from view. With the process according to the invention, on the contrary, the corresponding devices make it possible, by suitably coordinated control of the advances of the laying units and of the support, to lay the wires also on the air with variable wavelengths and / or amplitudes. .
• the axis Z of the movement of the tools can be put in translation or in rotation.
• an electric drive with a hollow shaft can be provided, for example, which can first be moved and positioned along a straight guide, and which can pivot around this axis in translation or an axis parallel to the latter for the action of a tool which it carries, for example a cutting or marking tool.
• Cutting tools can be integrated into the device both for cutting the length of the wires themselves (pliers, short-circuit electrodes) and for cutting the substrate, for example a thermoplastic adhesive film (knife) , and be ordered with the method according to the invention.
• Figure 1 shows a side view of a device for implementing the method according to
• Figure 2 shows a plan view of a similar device.
• a rotary support in the shape of a drum 1 is provided with a direct reversible electric drive 2, which acts on an axis of rotation 3 of the support 1 mounted in a fixed position in a frame and which can on the one hand cause this one around this axis of rotation 3 in both directions of rotation and on the other hand, control and position it in predetermined movement patterns.
• a plastic substrate 4 is fixed to the surface of the support 1 with suitable means (of known nature).
• two laying units 5 of the same type have been indicated. They are intended to lay thin wires 6 on the plastic substrate 4. They are fixed on sliders 7, which can slide along guide rails 8 fixed on the frame, perpendicular to the plane of the drawing.
• Another tool 5 ' has also been shown diagrammatically on the left side, next to the support.
• the latter is guided on a cylindrical guide rail 8 ′, and its cursor 7 ′ has a bore adapted to the guide rail 8 ′.
• This slider cannot only slide along the guide rail
• the tool can for example be a heating tool, a cutting tool and / or a writing tool and it then comes into contact with the plastic substrate only when its function is really necessary.
• the laying units 5 can also be adjustable in height with respect to their cursor 7, in particular to bring them with their blocks 9 to the exactly correct position above the surface of the substrate, and in addition to facilitate the exchange of spools of thread and insertion of new threads 6.
• FIG. 2 illustrates even better the relative mobility of the laying units 5 and of the support 1 with the plastic substrate 4.
• FIG. 2 shows a guide rail 8.
• this one carries, apart from the laying unit 5, in addition to the slider 7 still two other cursors 7 drawn in mixed lines with other tools of the type described above.
• the guide rail 8 extends parallel to the axis 3 and therefore perpendicular to the actual working direction of the support 1.
• a programmable control unit C which coordinates the movements support 1 and sliders 7 with the laying units and other tools. It is symbolically connected using control and supply lines with the direct drive and the guide rail respectively with the sliders associated with it.
• the laying units 5 are suitable for laying the wires 6 in the correct and secure position, independently of the direction of relative movement between the support on the one hand and the sliders on the other hand. This is reproduced here in a very simplified manner because the wires 6 are guided by a block 9, the underside of which is placed as close as possible to the surface of the plastic substrate 4.
• the plastic substrate 4 is here divided into three sections over the width of the support 1, by two pairs of dashed lines drawn vertically.
• Winding traces are possible, if you use the direct drive option 2 to move in oscillation back and forth the support 1 itself

Landscapes

• Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
• Moulding By Coating Moulds (AREA)
• Surface Heating Bodies (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Insulated Conductors (AREA)

Applications Claiming Priority (5)

Publications (2)

Family

ID=32928833

Family Applications (1)

Country Status (8)

Families Citing this family (5)

Family Cites Families (6)

• 2004
  • 2004-02-20 DE DE602004002283T patent/DE602004002283T2/de not_active Expired - Lifetime
  • 2004-02-20 MX MXPA05008982A patent/MXPA05008982A/es active IP Right Grant
  • 2004-02-20 WO PCT/FR2004/000400 patent/WO2004077496A2/fr active IP Right Grant
  • 2004-02-20 AT AT04713101T patent/ATE339075T1/de not_active IP Right Cessation
  • 2004-02-20 EP EP04713101A patent/EP1597940B1/de not_active Expired - Lifetime
  • 2004-02-20 PL PL377270A patent/PL206127B1/pl unknown
  • 2004-02-20 BR BRPI0407772A patent/BRPI0407772B1/pt active IP Right Grant
  • 2004-02-20 ES ES04713101T patent/ES2271850T3/es not_active Expired - Lifetime

Non-Patent Citations (1)

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