CA2072542A1 - Car seat heating device which can be fitted subsequently - Google Patents

Car seat heating device which can be fitted subsequently

Info

Publication number
CA2072542A1
CA2072542A1 CA002072542A CA2072542A CA2072542A1 CA 2072542 A1 CA2072542 A1 CA 2072542A1 CA 002072542 A CA002072542 A CA 002072542A CA 2072542 A CA2072542 A CA 2072542A CA 2072542 A1 CA2072542 A1 CA 2072542A1
Authority
CA
Canada
Prior art keywords
car seat
carrier material
adhesive film
heating element
seat heater
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.)
Abandoned
Application number
CA002072542A
Other languages
French (fr)
Inventor
Ferdinand Schuller
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.)
WET Automotive Systems AG
Original Assignee
Ferdinand Schuller
Warme- Und Elektrotechnik B. Ruthenberg Gmbh
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 Ferdinand Schuller, Warme- Und Elektrotechnik B. Ruthenberg Gmbh filed Critical Ferdinand Schuller
Publication of CA2072542A1 publication Critical patent/CA2072542A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/62Accessories for chairs
    • A47C7/72Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
    • A47C7/74Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/20Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56Heating or ventilating devices
    • B60N2/5678Heating or ventilating devices characterised by electrical systems
    • B60N2/5685Resistance
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017Manufacturing methods or apparatus for heaters
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/029Heaters specially adapted for seat warmers
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/033Heater including particular mechanical reinforcing means

Abstract

Abstract The car seat heating device, which in particular can be fitted subsequently, comprises a thin, electrically insulating, three-dimensionally resilient carrier material (4) permeable to air and humidity. To the carrier material there is applied a resilient surface heating element (2) with a latticed structure comprising free spaces (5).
The surface heating element (2) has a parallel conductor form, and three-dimensional deformability. To the surface heating element (2) is applied an adhesive film (3) permeable to air and humidity, which bonds the surface heating element to the carrier material (4) through the free spaces (5) in the latticed structure. To the adhesive film (3) there is applied a protective foil (1), which is separable therefrom. The adhesive strength of the adhesive film (3) is suitable for adhesion to the back of a car seat cover.
Figure

Description

2~72~2 CAR SEAT ~EATING DEVICE WHICH CAN
BE FITTED SUBSEQUENTLY

The invention relates to a car seat heating device, and in particular to a car seat heating device which can be fitted subsequently.

As is known, the seats of an increasing n~mber of cars and commercial vehicles are being e~uipped with car electric seat heating devices, either as a production line fitting or as a special accessory ex works. Subse~uent installation of such seat heating in the original design is only possible at great expense, or not at all. For this reason a series of car seat heating devices has been developed which can be f itted subsequently and which act as s~perimposed seat heaters similar to electric heated cushions, attached by means of tapes to the surface of the seat, or as loose seat covers with integrated seat heating, produced to fit the individual seats of the various vehicles, and fitted over the seat and back.

These known forms of car seat heaters fitted subsequently use relatively thick insulated stranded heating conductors made of copper, the mechanical strength of which is relatively low. Since car . .

2~72~

seat heaters develop folds if they are not expertly fitted or if the heating elements used do not fit perfectly, kinks form in the stranded copper conductors. Yehicle and seat vibrations give rise to high flexural stresses, which in the kink area lead to breakage of the Individual strands of the conductor after only a short time. This results in local o~erheating, described as a hot spot, which can cause fires. In order to c~unteract this danger, the heating mats have a very thick structure, in order to prevent the formation of folds. In addition stretching frames made of spring steel wires are used. Although in thick heating mats fold formation no longer occurs, the heating up times are very lon~. They also alter and impair the seating comfort and seatin~
climate.

Contrary to the market requirements for very varied forms, colours and materials, for economic reasons only a few variants of seat covers with integrated seat heating are available.

The o~ject on which the invention is based therefore consists in providing a car seat heating device, in particular a car seat heating device which can be fitted subsequently, which can be manufactured as a mass-produced article and is - 2~72~2 suitable for all known car seats, without any safety risks or disadvantages concerning com~ort.

According to the invention this object is achieved by means of a car seat heating device, and in particular by a car seat heating device which can be fitted subse~uently, having a thin, electrically insulated, three-dimensionally resilient carrier material permeable to air and humidity, a flat resilient heating element applied to the carrier material, with a latticed structure comprising free spaces, having a parallel conductor arrangement with three-dlmensional deformability, a resilient adhesive film permeable to air and humidity, which is applied to the heating element and bonds the latter by adhesion to the carrier material through the free spaces in the latticed structure, and having a protective foil appliet to, and separable from the adhesive film, wherein the adhesive strength of the adhesive film is designed for attachment to the back of a car seat cover.

The car seat heater according to the invention can be produced such that it is very thin, since the formation of folds does not constitute any safety risk, owing to the ~ka~ heating element used, which is the subject matter of patent applications ., ~ -2~72~-2 P 40 20 580.~ and P 41 01 290.9. Owing to the thin structure, the effect of heating can be felt very quickly. The seating comfort and seating climate are only slightly impaired.

Advantageously the adhesive film is a double-sided adhesive foil. Permanent adhesives of this type, having a high level of contact adhesion, are available commercially.

The carrier material is preferably a thin upholstery material ~eg foam material) backed by a textile flat shap~d article.

The car ~eat heater is particularly suitable for adhesive attachment to the ~ack of a loose seat cover, which is produced according to the required form, colour and size, and to which the car seat heater can be simply and firmly attached, after the protective foil has been removed.

The car seat heater which can be fitted subsequently can comprise a carrier material which is continuous for the seat and back, wherein El~L
heating elements are provided in the seat and back areas, whereas the area therebetween is an unheated surface, suitable for accommodation of 2~7~2 the electrical connections and directinq them later~lly to the outside.

The invention is explained in greater detail by means of a drawing, showing a cross-section of an em~odiment of the car sea~ heater.

The car seat heater s~ in the drawing which ~ be fitt~d subsequently comprises a thin strip-like carrier material 4 made of textile-reinforced foam material. To this carrier material there is SV~
applied a ~ heating element 2 with a latticed structuro comprising free spaces 5 and which can be deformed three-dimensio~ally. A resilient synthetic resin adhesive film 3 which is Dermeahle to air and humidity , and is covered on one side with the protective fcil, is pressed onto the ~h~r heating element 2. The synthetic resin adhesive film 3 passes through the free spaces 5 in the mesh-type structure of the ~ heating element 2 ~P,~C~
and bonds the ~Pr heating element 2 to the carrier material 4. The protective foil 1 applied to this structure for the pur?ose of storage and dispatch, a~d which adheres to the adhesive film 3, can easily be removed therefrom.

.
For installation of the car seat heater, the protective foil 1 is remLved. The car seat heater is .
' 2~72~2 then ~onded ~y means of the adhesive film 3 to the inner side of a car seat cover or to the back of a loose seat cover, wherein the adhesive strength is sufficient for non-slip attachment.

Claims (6)

1. Car seat heater, in particular a car seat heater which can be fitted subsequently, comprising:
- a thin, electrically insulating, three-dimensionally resilient carrier material permeable to air and humidity;
- a resilient surface heating element (2) which is applied to the carrier material (4) and has a latticed structure comprising free spaces (5) and a parallel heating conductor arrangement with three-dimensional deformability;
- a resilient adhesive film (3) permeable to air and humidity, which is applied to the surface heating element (2) and bonds the latter to the carrier material through the free spaces (5) in the latticed structure; and - a protective foil (1) applied to, and removable from the adhesive film (3), wherein the adhesive strength of the adhesive film (3) is suitable for bonding to the back of a car seat cover.
2. Car seat heater according to claim 1, characterised in that the adhesive film (3) is a foil which is adhesive on both sides.
3. Car seat heater according to claim 1 or 2, characterised in that the carrier material (4) is a textile-reinforced thin foam material.
4. Car seat heater according to any one of the preceding claims, characterised in that the car seat cover is a loose cover or an original cover.
5. Car seat heater according to any one of the preceding claims, characterised by an integral structure comprising a heated back part, an unheated middle part and a heated seat part.
6. Car seat heater according to claim 5, characterised in that in the middle part, electrical connections and switches for the surface heating element (2) are disposed.
CA002072542A 1991-07-05 1992-06-26 Car seat heating device which can be fitted subsequently Abandoned CA2072542A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4122363.2 1991-07-05
DE4122363A DE4122363C1 (en) 1991-07-05 1991-07-05

Publications (1)

Publication Number Publication Date
CA2072542A1 true CA2072542A1 (en) 1993-01-06

Family

ID=6435556

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002072542A Abandoned CA2072542A1 (en) 1991-07-05 1992-06-26 Car seat heating device which can be fitted subsequently

Country Status (7)

Country Link
JP (1) JPH05184435A (en)
KR (1) KR930002164A (en)
AT (1) AT400993B (en)
CA (1) CA2072542A1 (en)
DE (1) DE4122363C1 (en)
FR (1) FR2678563B1 (en)
GB (2) GB9211792D0 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304327C2 (en) * 1993-02-13 1998-07-09 Cartec Gmbh Automobiltech Heated seating
DE19509153A1 (en) * 1995-03-14 1996-09-19 Bayerische Motoren Werke Ag Shaped body with heating device, in particular exterior rear view mirror of a motor vehicle
US6064037A (en) * 1997-06-03 2000-05-16 W.E.T. Automotive System A.G. Air-permeable heating device for a seat
DE19816816A1 (en) * 1998-04-16 1999-10-21 Bayerische Motoren Werke Ag Electrically heated surface heating element for heated vehicle seating or steering wheel
US7202444B2 (en) * 1999-01-25 2007-04-10 Illinois Tool Works Inc. Flexible seat heater
FR2792870B1 (en) * 1999-04-30 2001-06-15 Johnson Controls Roth METHOD FOR PRODUCING A HEATING CABLE AND INSERTING THE SAME INTO A SEAT CUSHION BETWEEN THE PADDING AND THE COVER
DE19933377B4 (en) * 1999-07-20 2005-08-25 W.E.T. Automotive Systems Ag Heating device for vehicle seats
SE528332C2 (en) * 2004-09-16 2006-10-24 Kongsberg Automotive Ab Heated cushion for vehicle seat has fastening materials provided on opposing main surfaces of upper and lower portions for engagement with each other to enclose and fix heating coil within cushion
JP4638858B2 (en) * 2006-11-02 2011-02-23 昭和電線デバイステクノロジー株式会社 Net-type heater for steering wheel
US10668845B2 (en) * 2018-04-25 2020-06-02 GM Global Technology Operations LLC Moisture detection and regulation in a vehicle interior component

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB228165A (en) * 1924-01-21 1925-07-30 Ver Chemische & Metallurgische Improvements in and relating to processes for the manufacture of barium chloride and the simultaneous production of alkali hydrosulphide
US3017493A (en) * 1960-01-22 1962-01-16 Pyrexon Ray Company Ltd Heated car seat
CS172474B1 (en) * 1972-01-24 1977-01-28
US3798419A (en) * 1973-03-12 1974-03-19 Gould Inc Electrical surface heating assembly
US4044221A (en) * 1974-07-19 1977-08-23 Kommanditgesellschaft Warmetechnik B. Ruthenberg Gmbh Flexible heating element for heating seats, in particular motor vehicle seats, couches, berths or the like
SE434204B (en) * 1977-11-23 1984-07-09 Bulten Kanthal Ab TABLE HEATING DEVICE
DE2901342A1 (en) * 1979-01-15 1980-07-24 Vorwerk & Sohn HEATABLE EXTERIOR MIRROR FOR MOTOR VEHICLES
JPS5916471A (en) * 1982-07-20 1984-01-27 Canon Inc Television camera and pattern chart
SE8305245L (en) * 1983-09-28 1985-03-29 Autopart Sweden Ab VERMEDYNA, SPECIAL FOR THE VEHICLE SEAT
JPS6266811A (en) * 1985-09-19 1987-03-26 松下電器産業株式会社 Seat heater for vehicle
DE3703939A1 (en) * 1987-02-09 1988-08-18 Ruthenberg Gmbh Waermetechnik AREA HEATING ELEMENT FOR INSTALLATION IN VEHICLE SEATS
DE8707476U1 (en) * 1987-05-25 1988-02-18 Waerme- Und Elektrotechnik B. Ruthenberg Gmbh, 8000 Muenchen, De
DE3725408A1 (en) * 1987-07-31 1989-02-16 Audi Ag METHOD FOR PRODUCING A HEATABLE VEHICLE SEAT, VEHICLE SEAT AND PAD
DE3725814A1 (en) * 1987-08-04 1989-02-16 Bauerhin I G Elektro Tech SEAT HEATING FOR INTEGRATED INSTALLATION IN VEHICLE SEATS
GB2228165A (en) * 1988-12-16 1990-08-15 Loheat Ltd Self adhesive heater tape
DE4017707C2 (en) * 1990-06-01 1996-03-21 Audi Ag Vehicle seat
DE4020580A1 (en) * 1990-06-28 1992-01-09 Ruthenberg Gmbh Waermetechnik ELECTRIC SURFACE HEATING ELEMENT

Also Published As

Publication number Publication date
JPH05184435A (en) 1993-07-27
FR2678563A1 (en) 1993-01-08
DE4122363C1 (en) 1992-09-24
GB9213389D0 (en) 1992-08-05
GB2257608A (en) 1993-01-13
GB9211792D0 (en) 1992-07-15
KR930002164A (en) 1993-02-22
AT400993B (en) 1996-05-28
GB2257608B (en) 1995-07-19
FR2678563B1 (en) 1993-12-03
ATA137092A (en) 1995-09-15

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