US20080246325A1 - Vehicle Seat and Cushion Therefor - Google Patents

Vehicle Seat and Cushion Therefor Download PDF

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Publication number
US20080246325A1
US20080246325A1 US11/884,046 US88404606A US2008246325A1 US 20080246325 A1 US20080246325 A1 US 20080246325A1 US 88404606 A US88404606 A US 88404606A US 2008246325 A1 US2008246325 A1 US 2008246325A1
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US
United States
Prior art keywords
air
cushion
guiding layer
outlet opening
vehicle seat
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
US11/884,046
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English (en)
Inventor
Karl Pfahler
Manfred Ziemann
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Assigned to DAIMLER AG reassignment DAIMLER AG CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: DAIMLERCHRYSLER AG
Assigned to DAIMLERCHRYSLER AG reassignment DAIMLERCHRYSLER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZIEMANN, MANFRED, PFAHLER, KARL
Publication of US20080246325A1 publication Critical patent/US20080246325A1/en
Assigned to DAIMLER AG reassignment DAIMLER AG CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION NO. 10/567,810 PREVIOUSLY RECORDED ON REEL 020976 FRAME 0889. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Assignors: DAIMLERCHRYSLER AG
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B60N2/5635—Heating or ventilating devices characterised by convection by air coming from the passenger compartment

Definitions

  • the invention relates to a vehicle seat and to a cushion for a vehicle seat.
  • cold foams made of polyurethane which can be formed into corresponding molded parts, are used for seat cushions.
  • the molded parts produced from foam have the disadvantage of being less air-permeable.
  • a further possibility is to provide a mixture of natural fibers, such as coconut fibers, animal hairs and the like, with a binding agent (in particular, latex), and to mold it into a cushion part, this being known under the general term of “rubberized hair”.
  • a binding agent in particular, latex
  • German patent document DE 200 02 447 U1 discloses a seat cushion for vehicle seats, in which the core part, which is produced from an expanded plastics material, is penetrated by a plurality of depressions.
  • the depressions serve primarily to adapt to certain seat anatomies and can only partly permit circulation of air, since the exchange of air can take place only by means of an air-permeable pad arranged above the core part. If appropriate, the air-permeable pad is connected to a channel in which a fan is arranged.
  • German patent document DE 102 43 315 A1 likewise discloses a vehicle seat cushion, which has a cushion core that is penetrated by a channel system.
  • the channel system is formed from horizontal partial channels arranged at right angles to one another and from further channels extending vertically from the latter into the core.
  • the ventilation is produced by means of a fan which introduces air from these vertical channels into the cushion core, the air then being discharged again through further vertical channels.
  • an activated carbon insert which can absorb the moisture.
  • an activated carbon insert of this type is associated with the considerable disadvantage that the sweat moisture coming from the vehicle occupant is regularly stored. Therefore the effect of inserts of this type is considerably reduced over time, it is also possible, under some circumstances, for an odor to form.
  • Active seat ventilation devices are disadvantageous since the construction of cushions or vehicle seats containing them has turned out to be complicated and cost-intensive. Furthermore, the additional units which are to be provided for such ventilation are associated with an increased weight and an increased requirement for space.
  • One object of the present invention is to provide a cushion for a vehicle seat (as well as a vehicle seat) which can remove moisture simply and cost-effectively.
  • the vehicle seat and cushion according to the invention in which an outlet opening is arranged in relation to an air-guiding layer within the cushion (which can be used in a vehicle seat both as a seat cushion and as a backrest), in such a manner that the discharge of warm and moist air causes cool, dry ambient air to flow into the air-guiding layer automatically.
  • the configuration according to the invention makes use of the “chimney effect” known from thermodynamics and thermionics, in which the suction effect of warm, moist air flowing out in a channel system causes cooler and therefore drier air to flow into the channel system from the environment.
  • the partial pressure of the water vapor or the diffusion gradient of the water vapor in the interior of the cushion can be considerably increased.
  • a temperature gradient between a temperature of circa 35° C., which usually prevails at the contact surface between the occupant and the cushion, and an ambient temperature of circa 24° C. is sufficient to obtain this effect, which permits a virtually complete removal of the sweat moisture through the seat.
  • the cushion according to the invention comprises a plurality of layers, namely a foam core, the air-guiding layer and a cover covering said layers.
  • a foam core is arranged between the cover and the foam core while, in another embodiment, the foam core is arranged between the cover and the air-guiding layer.
  • the foam core can be penetrated by horizontal and/or vertical channels, and therefore, depending in each case on the embodiment, either cool and dry air or warm and moist air can be conducted through the channel system.
  • the cover is produced from an air-permeable and hydrophilic fleece lamination.
  • the air-guiding layer is composed either of a spacer knit, a reticulated foam or of rubberized hair.
  • a cushion constructed according to the preceding embodiments can be used both for a seat cushion and for a backrest of a vehicle seat.
  • the outlet opening of the cushion is arranged on the rear side of the backrest, as seen in the direction of travel, and in the upper end region of the cushion.
  • at least one inlet opening is provided which likewise opens toward the rear side and through which the cool and dry air is sucked.
  • the outlet opening is provided in the region of the backrest at the greatest possible distance from the inlet opening.
  • the outlet opening is situated at the rear end, preferably of the air-guiding layer. If appropriate, an inlet opening is likewise situated here arranged at the greatest possible distance from the outlet opening which can be provided on the end side or the lower side of the seat cushion.
  • FIG. 1 is a schematic cross-sectional illustration of a first embodiment of the invention
  • FIG. 2 is a schematic cross-sectional illustration of a second embodiment of the invention.
  • FIG. 3 is a schematic cross-sectional illustration of a third embodiment of the invention.
  • a first embodiment of a vehicle seat according to the invention comprises a seat cushion 1 and a backrest 2 , both of which are essentially composed of the same layered construction according to the invention.
  • the layered construction is composed of an upper cover 3 , comprising a fleece lamination, a foam core 4 , which is arranged below it and has vertical air- and moisture-guiding channels 5 , and of an air-guiding layer 6 , which in turn is arranged below it and is composed of a rubber knit.
  • the assembly of the layers 3 , 4 and 6 is arranged on a spring core 7 for the seat cushion 1 .
  • the cover 3 is air- and moisture-permeable, and therefore warm and moist air can be introduced through the channels 5 in the foam core 4 into the rubber knit 6 .
  • An outlet opening 8 through which the warm and moist air can flow out, is situated at the rear end of the seat cushion 1 , in the region of the rubber knit 6 .
  • the backrest 2 which also comprises an air- and moisture-permeable cover 9 arranged above a foam core 10 with channels 11 provided essentially horizontally therein.
  • an air-guiding layer 12 is provided in the form of, for example, a rubber knit, which is supported on a spring core 13 .
  • An outlet opening 14 is situated at the upper end of the backrest 2 .
  • An inlet opening 15 is provided in the lower region of the backrest 2 at the greatest possible distance from said outlet opening 14 .
  • the openings 14 and 15 open in the rear tensioning part of the backrest 2 .
  • the flow of the warm and moist air via the cover 9 and the channels 11 into the rubber knit 12 causes dry and cool additional air to be sucked up from below through the inlet opening 15 .
  • FIG. 2 shows a second embodiment of a vehicle seat, in which the air-guiding layer 17 made of a rubber knit is arranged directly below a cover 16 .
  • a foam core 18 is provided therebelow, with at least one downwardly directed inlet opening 19 being provided in the foam core 18 and being arranged, preferably in the front region of the seat cushion 1 , in order to suck up dry and cool additional air. If appropriate, a corresponding opening is provided in the region of the seat cushion shell or of the spring core.
  • the backrest 2 is constructed in an analogous manner from a cover 20 , an air-guiding layer 21 and a foam core 22 .
  • an outlet opening 23 and an inlet opening 24 are provided at a distance from each other sufficient in order to produce the “chimney effect”.
  • FIG. 3 A third embodiment of the vehicle seat and cushion according to the invention is shown in FIG. 3 .
  • the construction corresponds essentially to the embodiment according to FIG. 2 , but with the difference that the foam core 18 of the seat cushion 1 is penetrated by a plurality of vertical channels 25 and at least one horizontal channel 26 .
  • the suction effect on account of moist and warm outgoing air flowing out through the outlet opening 8 in the rear end of the seat cushion 1 causes dry and cool additional air to be sucked up from the lower side of the spring core 7 , or of the cushion shell, through the vertical channels 25 of the foam core 18 and to be mixed with the warm and moist air, which flows in through the rubber knit 17 , in the horizontal channel 26 before the mixed air can emerge through the outlet opening 14 .
  • the flow conditions are similar in the region of the backrest 2 , with the dry and cool additional air being supplied via the inlet opening 24 to the horizontal channels 27 and then subsequently to the at least one essentially vertically running channel 28 before moist and warm outgoing air can emerge via the outlet opening 23 .
US11/884,046 2005-02-10 2006-01-21 Vehicle Seat and Cushion Therefor Abandoned US20080246325A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005006060.9 2005-02-10
DE102005006060A DE102005006060A1 (de) 2005-02-10 2005-02-10 Fahrzeugsitz und Polster hierfür
PCT/EP2006/000540 WO2006084562A1 (de) 2005-02-10 2006-01-21 Fahrzeugsitz und polster hierfür

Publications (1)

Publication Number Publication Date
US20080246325A1 true US20080246325A1 (en) 2008-10-09

Family

ID=35884049

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/884,046 Abandoned US20080246325A1 (en) 2005-02-10 2006-01-21 Vehicle Seat and Cushion Therefor

Country Status (5)

Country Link
US (1) US20080246325A1 (de)
EP (1) EP1846262A1 (de)
JP (1) JP2008529621A (de)
DE (1) DE102005006060A1 (de)
WO (1) WO2006084562A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090253362A1 (en) * 2008-04-08 2009-10-08 W.E.T Automotive Systems Ag Ventilation means
US20130161998A1 (en) * 2011-12-22 2013-06-27 Grammer Ag Vehicle seat and method for producing an upholstered vehicle seat part
US20130299128A1 (en) * 2010-10-28 2013-11-14 Dimitri Bergamini Air-conditioned seat for a cabin of a vehicle
US20180170225A1 (en) * 2016-12-21 2018-06-21 Toyota Boshoku Kabushiki Kaisha Vehicle seat

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009031726A1 (de) 2009-07-04 2011-01-05 Daimler Ag Luftführungsschicht, insbesondere für ein Polster eines Fahrzeugsitzes
CN201752306U (zh) * 2010-07-13 2011-03-02 杨卫新 一种符合人体工程学的吸排式通风座垫
DE202011109474U1 (de) 2011-01-06 2012-04-16 I.G. Bauerhin Gmbh Fahrzeugsitz
JP6054087B2 (ja) * 2012-07-26 2016-12-27 株式会社タチエス 自動車シートに用いるシート・クッション
JP6058932B2 (ja) * 2012-07-26 2017-01-11 株式会社タチエス 自動車シートに用いるシート・バック
DE102019116422B3 (de) 2019-06-18 2020-08-06 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Entfeuchtungsanordnung für einen Fahrzeugsitz sowie Fahrzeugsitz

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550523A (en) * 1969-05-12 1970-12-29 Irving Segal Seat construction for automotive air conditioning
US6019420A (en) * 1998-02-04 2000-02-01 Daimlerchrysler Ag Vehicle seat
US6189966B1 (en) * 1998-02-03 2001-02-20 Daimlerchrysler Ag Vehicle seat
US6277023B1 (en) * 1998-10-07 2001-08-21 Faurecia Autositz Gmbh & Co. Kg Motor vehicle seat with ventilation device
US6626488B2 (en) * 2000-10-06 2003-09-30 Daimlerchrysler Ag Cushion assembly for a motor vehicle seat
US6629725B1 (en) * 1999-11-16 2003-10-07 Daimlerchrysler Ag Seat part for a vehicle seat
US20060138811A1 (en) * 2002-09-18 2006-06-29 Karl Pfahler Cushion for a vehicle seat

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609095A1 (de) * 1985-03-28 1986-10-09 Keiper Recaro GmbH & Co KG, 5630 Remscheid Fahrzeugsitz
DE3722814A1 (de) * 1987-07-10 1989-01-19 Grammer Sitzsysteme Gmbh Hinterschaeumter gegenstand und verfahren zu seiner herstellung
DE3725146A1 (de) * 1987-07-29 1989-02-09 Bayerische Motoren Werke Ag Sitz, insbesondere fuer kraftfahrzeuge
DE4112631C1 (en) * 1991-04-18 1992-04-30 Keiper Recaro Gmbh & Co, 5630 Remscheid, De Motor vehicle seat with moisture removal inset - incorporating air channel at rear of backrest with air dryer
DE19920062C2 (de) * 1999-05-03 2003-11-06 Daimler Chrysler Ag Fahrzeugsitz
DE20002447U1 (de) * 1999-09-21 2001-02-08 Johnson Controls Gmbh Sitzpolster für Fahrzeugsitze
DE20112473U1 (de) * 2001-07-28 2002-12-19 Johnson Controls Gmbh Klimatisiertes Polsterteil für einen Fahrzeugsitz

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550523A (en) * 1969-05-12 1970-12-29 Irving Segal Seat construction for automotive air conditioning
US6189966B1 (en) * 1998-02-03 2001-02-20 Daimlerchrysler Ag Vehicle seat
US6019420A (en) * 1998-02-04 2000-02-01 Daimlerchrysler Ag Vehicle seat
US6277023B1 (en) * 1998-10-07 2001-08-21 Faurecia Autositz Gmbh & Co. Kg Motor vehicle seat with ventilation device
US6629725B1 (en) * 1999-11-16 2003-10-07 Daimlerchrysler Ag Seat part for a vehicle seat
US6626488B2 (en) * 2000-10-06 2003-09-30 Daimlerchrysler Ag Cushion assembly for a motor vehicle seat
US20060138811A1 (en) * 2002-09-18 2006-06-29 Karl Pfahler Cushion for a vehicle seat

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090253362A1 (en) * 2008-04-08 2009-10-08 W.E.T Automotive Systems Ag Ventilation means
US9085255B2 (en) * 2008-04-08 2015-07-21 Gentherm Gmbh Ventilation means
US20130299128A1 (en) * 2010-10-28 2013-11-14 Dimitri Bergamini Air-conditioned seat for a cabin of a vehicle
US20130161998A1 (en) * 2011-12-22 2013-06-27 Grammer Ag Vehicle seat and method for producing an upholstered vehicle seat part
US9381839B2 (en) * 2011-12-22 2016-07-05 Grammer Ag Vehicle seat and method for producing an upholstered vehicle seat part
US20180170225A1 (en) * 2016-12-21 2018-06-21 Toyota Boshoku Kabushiki Kaisha Vehicle seat
US10384573B2 (en) * 2016-12-21 2019-08-20 Toyota Boshoku Kabushiki Kaisha Vehicle seat

Also Published As

Publication number Publication date
JP2008529621A (ja) 2008-08-07
DE102005006060A1 (de) 2006-08-24
EP1846262A1 (de) 2007-10-24
WO2006084562A1 (de) 2006-08-17

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AS Assignment

Owner name: DAIMLER AG, GERMANY

Free format text: CHANGE OF NAME;ASSIGNOR:DAIMLERCHRYSLER AG;REEL/FRAME:020976/0889

Effective date: 20071019

Owner name: DAIMLER AG,GERMANY

Free format text: CHANGE OF NAME;ASSIGNOR:DAIMLERCHRYSLER AG;REEL/FRAME:020976/0889

Effective date: 20071019

AS Assignment

Owner name: DAIMLERCHRYSLER AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PFAHLER, KARL;ZIEMANN, MANFRED;REEL/FRAME:021054/0329;SIGNING DATES FROM 20070724 TO 20070913

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: DAIMLER AG, GERMANY

Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION NO. 10/567,810 PREVIOUSLY RECORDED ON REEL 020976 FRAME 0889. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME;ASSIGNOR:DAIMLERCHRYSLER AG;REEL/FRAME:053583/0493

Effective date: 20071019