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WO2006045577A1 - Siege de vehicule - Google Patents

Siege de vehicule Download PDF

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Publication number
WO2006045577A1
WO2006045577A1 PCT/EP2005/011400 EP2005011400W WO2006045577A1 WO 2006045577 A1 WO2006045577 A1 WO 2006045577A1 EP 2005011400 W EP2005011400 W EP 2005011400W WO 2006045577 A1 WO2006045577 A1 WO 2006045577A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
air
seat cover
vehicle seat
layer
Prior art date
Application number
PCT/EP2005/011400
Other languages
German (de)
English (en)
Inventor
Christian Bier
Richard Leckenwalter
Stefan Kerscher
Original Assignee
W.L. Gore & Associates 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 W.L. Gore & Associates Gmbh filed Critical W.L. Gore & Associates Gmbh
Publication of WO2006045577A1 publication Critical patent/WO2006045577A1/fr
Priority to US11/736,958 priority Critical patent/US20070246975A1/en

Links

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
    • B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface
    • 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

Definitions

  • the present invention relates to a vehicle seat for use in all types of vehicles.
  • US Patent Application No. US 2002/0003362 A1 has proposed a vehicle seat which provides for ventilation of the body contact surfaces by means of openings in the seat surface and the backrest through which air is directed onto the body.
  • the sweat is only partially dried, since most of the openings are closed during sitting by the body, so that no air can escape from these. The more openings are closed, the stronger the air flow through the other openings.
  • the air flowing from the other openings, for example between the legs, is perceived as unpleasant by some people.
  • the accumulation of moisture in the body contact area is thus only marginally avoided, and there continues to be a poor circulation of air between the body and the vehicle seat. Consequently, the temperature in the body contact areas continues to increase with time. It is therefore an object of the invention to provide a vehicle seat with an improved dehumidification and simultaneous cooling for a person sitting on the vehicle seat.
  • a vehicle seat according to the invention comprises a seat element in which a cushion element and an air-permeable spacer are arranged between the seat cover and the upholstery element below an outer, water vapor-permeable seat cover layer.
  • the seat element described below relates not only to the seat area of a seat but also to the backrest or other elements of a multi-part seat construction.
  • Central areas are areas in which the body of an average person touches the vehicle seat ("body contact areas"). These central areas are impermeable to air and permeable to water vapor, by e.g. entwe ⁇ the seat cover itself comprises an extremely dense fabric or by preferably an air impermeable, wasserdampf pen ⁇ permeable layer is disposed under the seat cover.
  • the seat element has at least one edge area in addition to the central area. If, for example, the seat area of a vehicle seat is considered, the side cheeks or the front edge area of the seat are referred to as edge areas.
  • the edge regions are usually not touched by the person sitting on the seat and advantageously have an air-permeable seat cover layer.
  • the air permeability of fabrics is determined according to the European standard EN ISO 9237 (1955) and expressed in l / m 2 / s. In cooperation With the invention, the air permeability is defined by a value ⁇ 0.1 l / m 2 s Pa. This makes it possible in the elaboratetitleberei ⁇ chen below the seat cover to guide a first air flow parallel to the seat cover, without this is perceived by the person sitting on the seat person. In the peripheral regions of the vehicle seat, on the other hand, air can be directed outwards through the seat cover.
  • the leather cover should preferably have an MVTR value (according to DIN 53 333) of greater than 10 mg / cm 2 h.
  • MVTR value according to DIN 53 333
  • breathable leathers with an MVTR value of more than 12 mg / cm 2 h.
  • Such leathers are available, for example, from Lederfabrik Vogl in Maintofen / Austria.
  • leather cover macro- or micro-perforation of the cover is also possible.
  • microperforated leather Under microperforated leather is a Leather with usually produced in a Nadelungsprozeß pores having a pore diameter of 80 .mu.m to 100 ⁇ n to understand.
  • Conventional microperforced leathers with a thickness of between 1.9 mm and 2.5 mm achieve an MVTR value between 2 and 6 mg / cm 2 h, which is unsatisfactory for the purposes of the invention.
  • body contact surfaces If moisture in the form of sweat now collects between the body of the person sitting on the seat and the vehicle seat ("body contact surfaces"), it is conducted away from the body due to a partial pressure difference through the water vapor-permeable seat cover and reaches the spacer. There, the moisture is detected and dissipated by the first air flow running parallel to the seat cover, whereby dehumidification and cooling in the body contact areas are carried out.
  • the seat cover on one side of the spacer and the air-impermeable cushion on the other side define an air duct for the air guided through the spacer.
  • the spacer is designed in such a way that the first air flow in the spacer in a direction parallel to the seat cover at a pressure drop between 10 and 50 Pa over a distance of 40 cm has a speed between 10 and 100 cm / s, preferably between 20 and 70 cm / s.
  • a desired seat temperature is preselected by the user, which is then achieved by automatic continuous regulation of the fans after a short time. Dehumidification and heat conduction lower the temperature at the body contact surfaces, which is immediately perceived as a pleasant effect by the person.
  • the seat according to the invention combines this first air flow with a second air flow emerging from the edge regions of the seat. Due to the fact that the second air flow flows out of the seat cover in the edge regions of the seat, an additional cooling effect is created, which the person perceives soo. So that this second air flow does not lead to unpleasant draft phenomena, which are perceived differently from person to person, it can preferably be individually reduced or switched off completely by means of a suitable control. Surprisingly, it has been shown that it is only through the combination of the two above-described functionalities that a significantly improved seating comfort, which is immediately noticeable, is achieved. Furthermore, such a vehicle seat has a simple structure and can be easily integrated into a seat and backrest element.
  • the central region of the vehicle seat comprises a separate, between the spacer and the seat cover arranged water vapor permeable, luftun ⁇ permeable layer.
  • Suitable materials for the air-impermeable, water vapor-permeable layer are, in particular, polyurethane (PUR), polypropylene and polyesters, including polyether esters and their laminates, as described in US Pat. Nos. 4,725,418 and 4,493,870. ben are.
  • PUR polyurethane
  • polypropylene and polyesters including polyether esters and their laminates, as described in US Pat. Nos. 4,725,418 and 4,493,870. ben are.
  • stretched microporous polytetrafluoroethylene (ePTFE) as described, for example, in the publications US Pat. No. 3,953,566 and US Pat. No. 4,187,390.
  • This layer may be a textile or a membrane or a membrane laminate, the membrane advantageously being, for example, microporous (eg ePTFE) or monolithic (eg PUR).
  • ePTFE microporous
  • PUR monolithic
  • the membrane used is a microporous membrane of expanded polytetrafluoroethylene (ePTFE), it preferably has a thickness of between 10 and 150 ⁇ m and a porosity of between 70 and 85%.
  • a microporous layer is understood as meaning a layer whose average pore size is between about 0.1 ⁇ m and about 2.0 ⁇ m.
  • Pore size can be measured with the Coulter Porometer (trade name) manufactured by Coulter Electronics, Inc., Hialeath, Florida, USA.
  • the microporous membrane has a RET value between 4.0 and 6.0 m 2 Pa / W.
  • the RET value defines the water vapor transmission resistance as a specific material property of textile fabrics and other textile material constructions.
  • the latent heat of vaporization is determined by a given area due to an existing stationary partial pressure.
  • the RET value is determined by means of the
  • Hohenstein skin model test determined in the standard test specification Ne. BPI 1.4 of September 1987 of the Clothing Physiological Institute e.V. Hohenstein is described.
  • the first air flow in the spacer is preferably generated with at least one blower device.
  • Axial fans or centrifugal fans developed by the company Pope can be used as blower units.
  • a fan device with low power for example 0.5 to 2 W. It can be operated via the vehicle battery, even if the engine is switched off.
  • the blower device may turn on automatically when the vehicle is unlocked. Activation by remote control or timer is also possible.
  • a timing of the blower device may be useful, the frequency of the clock and the time of cooling per cycle can be adjusted automatically depending on the Wegtempera ⁇ tur.
  • blower devices are expediently used, for example with 2 to 5 W, in order to generate a sufficient second air stream, which is blown through the seat cover layer to the outside.
  • the air flow in the edge region at a pressure gradient between 30 and 100 Pa has a speed between 5 cm / s and 1 m / s.
  • the seat cover layer in the edge regions is permeable to air, wherein in the context of the invention the air permeability value is greater than 0.1 l / m 2 s Pa, preferably> 0.5 l / m 2 s Pa.
  • this Gebläse ⁇ device is individually adjustable to adjust the air flow to the conditions and preferences can. If necessary, the blower device for this area can also be switched off completely, as a result of which the person sitting on the seat can choose between "no draft" and "direct airflow".
  • the blower devices should be arranged so that they suck air from the bottom, since there the air is cooler.
  • the blower devices are provided in the vicinity of the ventilation outlets of the vehicle, which are located, for example, below the seat, so that air exiting from these outlets and cooled and dried when using an air-conditioning system is drawn in.
  • the driving seat can be connected directly to the air conditioning. In this case, can be dispensed with the separate blower devices of the vehicle seat and a person sitting on the seat can flow around in the areas without body contact through the air conditioning of the vehicle with cold air.
  • the sucked by the blower air can also be cooled by a separate cooling device / eg a Peltier element, before.
  • the air which flows below the body contact areas is discharged in one or more areas which are sufficiently removed from the suction area of the blower devices, thereby avoiding the suction of the discharged air which is warmed up and Contains moisture removed from the body contact surfaces.
  • a common Gebläseeinrich ⁇ device for generating both air flows is provided.
  • the air flow flowing through the seat cover in the areas without body contact can advantageously be adjusted individually via a valve.
  • the first and second air streams can be generated by a common blower device. That is to say, the air flows, for example, from the middle of the central seat area parallel to the seat cover into the edge area, in order then to flow outward through the air-permeable seat cover layer of the edge areas.
  • the air flow generated by means of this blower device in the spacer can have a very high speed, since the person sitting on the seat, the air flow below the • seat cover can not feel if, as preferred, an air-impermeable Layer (eg a membrane) between the outer seat cover layer and the spacer is arranged.
  • an air-impermeable Layer eg a membrane
  • any flat, open structure which, on the one hand, permits a flow through to divert water vapor passing through the seat cover and which, on the other hand, is sufficiently flexible and yet pressure-stable, so that it can also be under the weight of a not collated on her burdening person.
  • Particularly suitable are three-dimensional textiles, for example woven, knitted or knitted fabric made of synthetic fibers.
  • woven, knitted or knitted fabrics made of metal fibers. If, for example, a membrane is arranged between the spacer and the seat cover, it can be fixedly connected to the surface of the spacer, for example sewn or adhesively bonded.
  • the spacer is a three-dimensional spacer fabric with two outer, air-permeable layers. In between elements are arranged, which connect the two outer layers in the vertical direction and keep at a distance. At least the outer cover facing the seat cover consists of yarns adjacent to one another, wherein directly adjacent yarns are selectively connected to each other in a horizontal direction. The elements between the outer layers meander between the two layers and are connected alternately to one and the other outer layer.
  • the spacer fabric is preferably flexible and consists of polyester, polyamide, polypropylene and / or polyethylene. It is a dimensionally stable three- 'dimensional fiber woven fabric, also known as "3D mesh" is known.
  • 3D mesh three- 'dimensional fiber woven fabric
  • the article may be used with the No. 5911 or 5556 by the company Müller Textil in 51674 Wiehl-Drabenderière, Germany.
  • the structure of the spacer fabric is very simple. Furthermore, such a spacer fabric provides sufficient flexibility for a comfortable sitting feeling and sufficient pressure stability for a long service life. Its simple construction makes it very compatible with most seat covers.
  • the membrane and the spacer fabric are preferably laminated.
  • a further, finer spacer fabric for example a nonwoven fabric, lying between the spacer fabric and the seat cover can be provided.
  • the nonwoven preferably consists of wool or synthetic fibers or a mixture of both.
  • the fleece is as thin as possible and as thick as necessary determined. Since this fleece can be very thin, the transport of moisture into the spacer fabric is not substantially hindered. As a result, the moisture can continue to penetrate into the spacer fabric and be transported away from there.
  • Another advantage of the additional nonwoven is that the Wegkomiort the vehicle seat according to the invention is further increased.
  • a seat heater can be integrated in the fleece.
  • a network of conductive material for example carbon, metal or plastic fibers, may be provided in the fleece, which are preferably flat and, for example, 3 mm wide. In areas between the heating wires, the fleece can have recesses in order to prevent the transport of water vapor as little as possible.
  • FIG. 1 shows a vehicle seat with a seat element and a Lehnen- element in plan view
  • FIG. 2 shows a detailed / schematic view of the structure of a body contact region of the seat element from FIG. 1 in cross section;
  • FIG. 3 A is a detailed, schematic view of the entire Wegele ⁇ ment of Figure 1 in cross section consisting of a Whyumblebe ⁇ rich and two cheek areas and an air outlet below the bottom;
  • FIG. 3B is a detailed / schematic view of the entire seat member of Figure 1 in cross section consisting of a body contact area and two cheek areas / wherein a cheek area and the ThusAND ⁇ area have a common fan device;
  • FIG. 4 shows a spacer fabric in cross section
  • FIG. 1 shows a vehicle seat 1 in plan view, consisting of a seat member 2 and a back element 3, the structure of which is described below in more detail with reference to Figures 2 and 3.
  • the seat member 2 has a central region 2a, hereinafter referred to as the body contact region ", since when an average person sitting on the seat, approximately DIE This area comes into contact with the body.
  • the actual body contact area depends on each person individually and is indicated by way of example in FIG. 1 as hatched area.
  • the seat member 2 includes in the illustrated embodiment of the whe ⁇ Ren three edge portions 2b, 2c, which are usually no body contact areas (lateral cheeks 2b) or at least area with low body contact (front thigh support 2c).
  • the body contact portions 2a of the seat member 2 are formed such that a first airflow 50 can be made to pass parallel to the outer seat cover, but the first airflow 50 can not penetrate outwardly in the body contact areas to be seated on the seat Person is imperceptible.
  • the first airflow 50 may be directed through an opening 19 into the central area, for example, and be discharged from the area through an opening 20.
  • the arrangement of the air inlet and outlet can also be chosen differently. Only in the edge regions can a second air flow 60 be generated outwardly through the seat cover.
  • FIG. 2 now shows the detailed structure of the body contact region 2a of the seat member 2 of Figure 1 in cross section.
  • the body contact region 2a has the following layer structure: a seat cover layer 4 which is permeable to water vapor, a water-impermeable, air-impermeable layer 5, a three-dimensional spacer fabric 6 and a padding element 7. If a person sits down on the vehicle seat 1, forms himself the time moisture in thoroughlykontak Scheme 2a.
  • the combination of the seat cover layer 4 and the water vapor permeable, air-impermeable layer 5 is referred to below as the seat cover 30.
  • the seat cover 30 the temperature in the central area increases with time.
  • the Moisture passes through the seat cover layer 4 and the water vapor permeable layer 5 into the spacer fabric 6, which is shown in FIG. 2 with the thicker dashed arrows.
  • the spacer fabric 6 air is actively flowed through to allow the Ab ⁇ line of passing through the seat cover 30 passing water vapor.
  • the partial pressure difference is maximized as a driving force for the transport of water vapor between the seat surface and the air duct.
  • the pad 7, which is for example a closed-cell foam core With its rear side adjoins the spacer fabric 6 to the pad 7, which is for example a closed-cell foam core.
  • the first air stream 50 guided through the spacer fabric 6, which is represented by the thin arrows in FIG. 2, is therefore forcibly guided substantially parallel between the air-impermeable layer 5 and the closed-cell upholstery.
  • Breathable leather, perforated leather, microfibers such as Alcantara or a woven textile cover can be used as the material for the water-vapor-permeable seat cover layer 4.
  • the seat cover layer 4 should preferably have a RET value of 5 to 20 m 2 Pa / W.
  • a microporous or monolithic membrane or laminates of, for example, polyurethane, polypropylene and polyester, including polyether esters can be used as the water-vapor-permeable, air-impermeable layer 5.
  • a membrane 5 is relatively thin compared to the seat cover layer 4 and, in the case of a microporous membrane of expanded polytetrafluoroethylene (ePTFE), may have a thickness between 10 and 150 ⁇ m and a porosity between 70 and 85%.
  • AIs Abstandsgewirk 6 any open structure into consideration on the one hand is flexible to give the seat 1 a comfortable seating, but on the other hand can not completely faux ⁇ press under pressure so that a ventilation of the spacer fabric 6 is ensured under all circumstances.
  • the spacer fabric has a thickness between 2 and 20 mm, preferably between 5 and 12 mm, particularly preferably about 10 mm. A particularly preferred spacer fabric will be described below with reference to FIG.
  • FIG. 3A shows a detailed view of the entire seat element 1 from FIG. 1 in cross-section, consisting of the central body contact area 2 a and two cheek areas 2 b.
  • the necessary first air flow rate 50 through the spacer fabric 6 for dehumidifying the vehicle seat 1, which is represented by the thinner arrows, is low. Therefore, a simple blower device 8 with low power is sufficient, for example a ventilator with a power of between 0.5 and 2 W in order to remove the moisture in the spacer fabric 6.
  • the fan 8 directly or indirectly connected to the ventilation system or the air conditioning of the vehicle.
  • the layer structure of the cheek areas 2b is in principle identical to that of the body contact area 2a, but the Wegbezug ⁇ layer 40 is permeable to air in any case and below the seat cover layer 40 is in particular no water vapor permeable, air-impermeable layer 5 is arranged so that the second air stream 60 from the Abstandsge ⁇ 6 can pass outward.
  • a nonwoven layer (not shown) between the seat cover 40 of the edge region and the spacer fabric 6 is provided in the cheek areas 2b only in the regions of the fan.
  • This additional nonwoven layer serves as a baffle layer for the fan generated by the fans second air flow 60 and supports a uniform air distribution, da ⁇ with the air is not only in the areas of the blower devices through the seat cover 40 is flowed.
  • a second air stream 60 can therefore be blown out through the seat cover 40 over the entire area.
  • blower devices 9 with more power, for example fans having a power of between 2 and 5 W, which then, as can be seen from a combination of FIGS. 1 and 3, be arranged below the cheek areas 2b of the backrest element 3 can.
  • Individually adjustable fans are particularly preferably used for these areas in order to be able to control the air blown through the edge areas 2b, 2c accordingly.
  • the vehicle floor 21 is indicated below the seat element shown in Figure 3A.
  • a fan outlet 22 of the vehicle ventilation is provided in the area below the blower devices 8 and 9, a fan outlet 22 of the vehicle ventilation is provided.
  • the air exiting from the outlet 22 is sucked in through the ventilators and supplied to the vehicle seat.
  • a partition wall 25 may be provided below the vehicle seat to separate the area where air is sucked and the area where the air transported under the seating surface is discharged from the opening 20 from each other to separate. This avoids that the fan means 8 and 9 suck in heated and moist air.
  • FIG. 3B shows a further embodiment of the vehicle seat according to the invention.
  • a cheek area 2b and the body contact area 2a have a common blower device 23.
  • the air sucked in by the device 23 is conveyed through the opening 19 into the spacer knit 6 and passed along the body contact area before it is discharged through the opening 20.
  • the air sucked in by the blower device 23 is supplied to the regions without body contact via a valve 24.
  • the air flow can be adjusted individually via the valve.
  • FIG. 4 schematically shows a cross-section of the preferred spacing effect 6.
  • At least one of the two outer layers 12 has an air-permeable, flat hole pattern (not shown) through which the moisture formed on the seat cover passes and the one guided in the spacer 6 Air can come into direct contact with the back of the seat cover layer 4 or the intermediate layer 5 in contact.
  • This the seat cover layer 4 facing layer 12 is preferably less structured and formed very fine mesh. Above all, it serves as a comfort layer.
  • the two layers 12 are connected by pile threads 13 and kept at a distance, which meanders between the layers 12 and are alternately connected to one and the other outer layer 12.
  • the layers 12, the structure of which may be different, serve as support fabric for fixing the pile threads 13.
  • the channel formed between the two outer layers 12 of the spacer knitted fabric 6 has a cross-sectional area of, for example, 30 cm 2 .
  • an average body contact area of 0.28 m 2 is assumed and a maximum welding rate of 100 g / m 2 h is established. Multiplying these two values results in a seated sweat rate of 28 g / h.
  • the humidity at the Kanalein ⁇ gang example, 35% and at the channel output, for example, 50%, the temperature is assumed to be constant.
  • the moisture content of the air has ⁇ between the inlet and outlet of the channel under these conditions, a sub- difference of about 3.0 g / m 3 .

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

La présente invention concerne un siège de véhicule (1) comprenant un élément d'assise (2) qui présente au moins une zone centrale (2a) et au moins une zone de bord (2b, 2c). La zone centrale comprend un revêtement de siège extérieur (30) qui est perméable à la vapeur d'eau et n'est pas perméable à l'air, ainsi qu'un élément de coussin (7) qui est placé sous ce revêtement. Un écarteur de ventilation (6) est placé entre le revêtement de siège (30) et l'élément de coussin (7) et permet de guider à travers l'écarteur (6) un premier courant d'air (50) dans une direction parallèle au revêtement de siège (30). Ladite zone de bord (2b, 2c) comprend un revêtement de siège de zone de bord perméable à l'air (40) à travers lequel un second courant d'air (60) peut circuler vers l'extérieur. Dans ladite zone centrale (2a), la majeure partie de l'humidité accumulée à cet endroit arrive dans l'écarteur (6) et est évacuée au moyen du premier courant d'air (50).
PCT/EP2005/011400 2004-10-26 2005-10-24 Siege de vehicule WO2006045577A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/736,958 US20070246975A1 (en) 2004-10-26 2007-04-18 Vehicle Seat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004052076.3 2004-10-26
DE102004052076A DE102004052076B4 (de) 2004-10-26 2004-10-26 Fahrzeugsitz

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WO2006045577A1 true WO2006045577A1 (fr) 2006-05-04

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US (1) US20070246975A1 (fr)
DE (1) DE102004052076B4 (fr)
WO (1) WO2006045577A1 (fr)

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WO2006131189A1 (fr) * 2005-06-08 2006-12-14 Bayerische Motoren Werke Aktiengesellschaft Siege de vehicule comportant une couche de ventilation sous un revetement de surface

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US9168852B2 (en) 2012-12-03 2015-10-27 Ford Global Technologies, Llc Climate comfort seat assembly
JP6749073B2 (ja) * 2014-12-26 2020-09-02 国立大学法人千葉大学 送風シート
FR3032922B1 (fr) * 2015-02-20 2017-03-10 Faurecia Sieges D'automobile Garniture d'element de siege pour vehicule automobile equipe d'un dispositif thermique
US11707909B2 (en) * 2017-10-27 2023-07-25 Gentherm Gmbh Surface temperature-controlling device
DE102018212999A1 (de) * 2018-08-03 2020-02-06 Mahle Lnternational Gmbh Kindersitzanordnung und ein Verfahren zum Steuern oder Regeln der Kindersitzanordnung
WO2020028683A1 (fr) * 2018-08-03 2020-02-06 Illinois Tool Works Inc. Système de refroidissement de siège avec tissu de suspension
US10899251B2 (en) * 2019-05-15 2021-01-26 Ford Global Technologies, Llc Vehicle seating assembly
US11780523B2 (en) 2021-12-03 2023-10-10 Harley-Davidson Motor Company, Inc. Multi-material support pad
DE112023002677T5 (de) * 2022-06-16 2025-05-22 Lear Corporation Fahrzeugsitzbaugruppe und Unterbaugruppen davon

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US20070246975A1 (en) 2007-10-25
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