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
  • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater
  • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater flexible, e.g. heating nets or webs
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B3/00—Footwear characterised by the shape or the use
  • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B3/00—Footwear characterised by the shape or the use
  • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
  • A43B3/35—Footwear characterised by the shape or the use with electrical or electronic arrangements with electric heating arrangements
  • A43B3/355—Footwear characterised by the shape or the use with electrical or electronic arrangements with electric heating arrangements heated by an electric current from an external source, e.g. car batteries
• • 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
  • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
• • 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
  • H05B2203/036—Heaters specially adapted for garment heating

Definitions

• the present invention relates to an electric heating body intended to be incorporated into an interior lining of a clothing element or an accessory intended to be applied against a part of the human body.
• patent EP 0 004 829 is described a method for obtaining an item of clothing or accessory, in particular a ski boot, closely adapted to a part of the human body, by thermoforming an inner lining of thermoformable material, by means an electric heating body incorporated into said lining, this lining and the part of the human body concerned being reciprocally pressurized after having brought the lining to its thermoforming temperature by means of the heating body.
• the heating body used is obtained by chemical attack on a polyester support coated with an aluminum layer, so as to form a meander capable of constituting a heating body of sufficient length.
• the main object of the present invention is to produce a heating body resistant to repeated bending stresses.
• the electric heater according to the invention consists of a ductile metal wire coated with an insulating varnish and fixed over its entire length on at least one metal sheet.
• the very thin wire for example made of copper, supports any bending and even repeated folds, because its diameter is always relatively small compared to the radius of curvature of the bending or of the fold. Its small diameter associated with the ductile nature of the metal used means that the heating body even supports a wrinkling.
• the metal support of the wire reduces the temperature gradient to a negligible value and ensures an almost uniform distribution of heat.
• the wire being fixed over its entire length on its metal support, it is in contact at all points with this support, so that it does not form a hot spot.
• the heating element according to the invention can be used both for thermoforming an interior lining of thermoformable material and as a heating element intended to slightly heat clothing items such as shoes or gloves.
• a copper wire with a diameter of 0.1 mm, coated with an enamel insulating varnish withstanding a temperature higher than the temperature to which the heating body is brought during its use, as found commercially, is fixed to the adhesive or self-adhesive side of an aluminum sheet with a thickness of 0.02 mm.
• a thin sheet of insulating material for example MYLAR (registered trademark) which covers the wire and helps to keep it in place, especially preventing its tearing by friction.
• the two ends of the wire are connected to wires or cables for power supply.
• the wire being insulated, it is without other possible to have crossings.
• the wire is arranged in meanders, for example in the following way: the wire is arranged so approximately rectilinear, without tension, between two combs, then we cross the combs, that is to say that we pass the teeth of one of the combs on the other side of the teeth of the other comb by driving thread. This then forms a meander between the two combs and it only remains to press it on the adhesive face of the aluminum sheet for fixing on this sheet.
• a length of copper wire of 2 meters is sufficient.
• the wire occupies very little surface and it is easy to dose the heating by varying the length of wire per unit of surface.
• the surface of the aluminum foil can be continuous or perforated, for example if it is desired to avoid the heating of certain parts.
• the wire may consist of another ductile metal, for example nickel silver.
• the copper wire may have a diameter of 0.1 to 0.4 mm, depending on the use and the metal sheet may have a thickness ranging from 0.02 to 1 mm. So general, the metal wire will have a diameter between 0.05 and 2.5 mm, depending on the nature of the metal and the use of the heater.
• the metal foil can have any shape, in particular a shape adapted to the part of the lining to be heated, respectively thermoformed, for example one of the shapes described in patent EP 0 004 829.

Landscapes

• Engineering & Computer Science (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Surface Heating Bodies (AREA)
• Resistance Heating (AREA)
• Outerwear In General, And Traditional Japanese Garments (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=4231823

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (28)

Citations (9)

Family Cites Families (28)

• 1983
  • 1983-05-02 CH CH2354/83A patent/CH652883A5/fr not_active IP Right Cessation
• 1984
  • 1984-04-24 EP EP84200575A patent/EP0124174B1/de not_active Expired
  • 1984-04-24 AT AT84200575T patent/ATE26056T1/de not_active IP Right Cessation
  • 1984-04-24 DE DE8484200575T patent/DE3462742D1/de not_active Expired
  • 1984-05-01 CA CA000453226A patent/CA1214193A/en not_active Expired
  • 1984-05-02 JP JP59089215A patent/JPS59214186A/ja active Pending
• 1985
  • 1985-11-25 US US06/801,510 patent/US4665308A/en not_active Expired - Fee Related

Patent Citations (9)

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