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EP1618018A1 - Motor vehicle seat having an air supply device - Google Patents

Motor vehicle seat having an air supply device

Info

Publication number
EP1618018A1
EP1618018A1 EP04720864A EP04720864A EP1618018A1 EP 1618018 A1 EP1618018 A1 EP 1618018A1 EP 04720864 A EP04720864 A EP 04720864A EP 04720864 A EP04720864 A EP 04720864A EP 1618018 A1 EP1618018 A1 EP 1618018A1
Authority
EP
European Patent Office
Prior art keywords
air
seat
motor vehicle
ventilation layer
blower
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.)
Withdrawn
Application number
EP04720864A
Other languages
German (de)
French (fr)
Inventor
Claudio Bargheer
Vasilios Orizaris
Karl Pfahler
Lothar Renner
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
Publication of EP1618018A1 publication Critical patent/EP1618018A1/en
Withdrawn legal-status Critical Current

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
    • B60N2/5635—Heating or ventilating devices characterised by convection by air coming from the passenger compartment
    • 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
    • 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
    • B60N2/5671—Heating or ventilating devices characterised by convection by air forming a windbreak, e.g. warm air blown on the neck of the passenger of an open vehicle
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/809—Head-rests movable or adjustable vertically slidable
    • 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
    • B60N2/80—Head-rests
    • B60N2/879—Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
    • 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
    • B60N2/565—Heating or ventilating devices characterised by convection by air sucked from the seat surface

Definitions

  • the invention relates to a motor vehicle seat with an air supply device of the type specified in the preamble of claim 1.
  • a motor vehicle seat can already be seen as known, in which the ventilation layer of the cushion of a seat cushion or a backrest for seat ventilation and / or for seat heating can be flooded with an air flow originating from the air supply device.
  • the air supply device shown there comprises an air outflow opening in the upper region of the seat, via which the head, shoulder and neck region of the seat occupant can be supplied with an air flow.
  • the ventilation layer of the upholstery and the air outlet opening in the upper area of the seat are supplied with air by a common blower.
  • the object of the present invention is to provide a motor vehicle seat of the type mentioned at the outset, in which the air supplies to the upholstery and the head, shoulder and neck area of the seat occupant can be combined more universally.
  • the solution to this problem according to the invention results from the features of patent claim 1.
  • Advantageous embodiments of the invention can be found in the remaining claims.
  • the fan for generating the air flow for the head, shoulder and neck area of the seat occupant can be supplied with air from the ventilation layer of the seat cushion, so that the air used for seat ventilation and / or seat heating is used anyway can also be used to act on the head, shoulder and neck area of the seat occupant.
  • the ventilation layer is arranged on the suction side of the blower, which generates the air flow for the head, shoulder and neck area of the seat occupant.
  • air is sucked in from the ventilation layer and at the same time air is flooded through the ventilation layer for seat ventilation.
  • the sucked-in air is then transported onwards by the blower to the air outlet opening in the upper area of the seat.
  • a particularly advantageous construction of the upholstery results if air inlet openings of the ventilation layer are arranged near the edge of the upholstery and the air intake opening of the blower is provided in a central region of the upholstery. With this arrangement, the path of the air flow between the air inlet opening of the ventilation layer and the air intake opening of the blower is approximately the same length from all sides of the cushion, so that a very homogeneous air distribution within the ventilation layer results.
  • a control element can be provided, through which the air flow generated in the fan can be at least partially discharged to an air outlet. If, for example, more air is required for seat ventilation in the ventilation layer than is needed at the air outflow opening to supply the head, shoulder and neck area of the seat occupant, this air flow can be correspondingly minimized or even completely prevented by the control element. The excess air is drained through the air outlet accordingly.
  • a further control element can be provided between the ventilation layer of the cushion and the blower, through which the blower can be supplied with air from outside the ventilation layer. Accordingly, if relatively little or no air is required within the ventilation layer, the fan for generating the air flow for the head, shoulder and neck region of the seat occupant can also be supplied with air from outside the ventilation layer. In other words, it is possible to use the blower to generate the airflow to feed the head, shoulder and neck area of the seat occupant with air from the ventilation layer and / or from outside the ventilation layer.
  • FIG. 1 shows a schematic perspective view of the motor vehicle seat according to the invention designed as an integral seat
  • FIG. 2 shows a schematic sectional view through the backrest of the motor vehicle seat according to the invention
  • Figure 3 is an enlarged view of detail III in Figure 2, showing the area near the fan of the air supply device of the seat.
  • Fig. 4 is a schematic sectional view through the backrest • of the motor vehicle seat according to the invention according to a second embodiment.
  • a seat part 10 and a backrest 12 of a motor vehicle seat designed as an integral seat is shown in a schematic perspective view in FIG. 1, at the upper end of which a headrest 14 is arranged such that it can be adjusted in height.
  • the headrest 14 is arranged in overlap with the upper region of the backrest 12 in front of this.
  • An air outflow opening 16 can be seen in a lower region of the headrest 14, through which the head,
  • An air flow from an air supply device can be applied to the shoulder and neck area of the seat occupant in a manner which will be explained in more detail below.
  • Figure 2 in which a schematic sectional view through the backrest 12 and the headrest 14 of the vehicle seat is shown, the structure of the backrest 12 with its cushion 18 and the headrest 14 can be seen.
  • a foam pad 22 is arranged on the plastic cover 20 and also extends over the entire height of the backrest 12.
  • a ventilation layer 24 is arranged on the foam pad 22, which here is essentially composed of a so-called spacer fabric.
  • the spacer fabric 24 has the property of being able to be particularly well flowed through by an air stream.
  • the ventilation layer 24 also extends over almost the entire height of the backrest 12, and in addition the ventilation layer 24 runs both in a central mirror region 26 which can be seen in FIG.
  • an upper cushion layer 32 is provided, which consist of a lower layer 34 and an upper layer 36 each made of air-permeable cushioning wadding, wool fleece or an open-cell foam or the like.
  • the lower layer 34 of the upper cushion layer 32 is provided with a plurality of blind holes 38, which are covered by the continuous upper layer 36 and arranged in the overlap area with the ventilation layer 24 are.
  • heating wires (not shown) of an electric seat heater are also arranged between the lower layer 34 and the upper layer 36 of the upper cushion layer 32.
  • the cushion cover 30 consists of a textile or a perforated leather or. Plastic.
  • a blower 40 of an air supply device 42 is arranged approximately halfway up a central area of the backrest 12, by means of which the air flow for flooding the ventilation layer 24 can be generated.
  • air inlet openings 44, 46 are provided near the upper and lower edge side of the cushion 18 of the backrest 12, which are each recessed from the plastic cover 20 and from the foam pads 22.
  • the blower 40 is designed here as a radial fan, with its suction side pointing in the direction of the ventilation layer 24. Accordingly, an air intake opening 48 is cut out of the foam cover 22 between the ventilation layer 24 and the inlet side of the blower 40, so that the ventilation layer 24 is connected to the blower 40.
  • the ventilation layer 24 is flooded by an air flow, indicated schematically by arrows, which can flow into the ventilation layer 24 via the air suction openings 46, 48 on the edge sides of the cushion 18 and further up to the air suction opening 48 of the blower 40 flows in the central region of the cushion 18.
  • the air flow within the ventilation layer 24 is achieved by the suction effect of the fan 40.
  • the ventilation layer 24 must be at least approximately airtight in relation to the foam pad 22. Is instead of the foam pad 22 - as mentioned above - rubber hair or a Similar air-permeable material is used, an air-impermeable layer is still arranged between the ventilation layer 24 and the rubber hair.
  • FIG. 3 The operation of the seat ventilation is particularly evident when viewed in conjunction with FIG. 3, in which detail III from FIG. 2 is shown enlarged.
  • the seat ventilation When the seat ventilation is activated, relatively dry air is sucked into the ventilation layer via the air inlet openings 46, 48 via the blower 40. Moisture generated by the seat occupant diffuses through the cushion cover 30 and the upper cushion layer 32 and is absorbed by the dry air flow in the ventilation layer 24 and then sucked in the direction of the blower 40. The absorption of the moisture of the seat occupant takes place in particular in the area of the blind holes 38 of the upper cushion layer 32.
  • the relatively high temperature gradients between the dry air flowing into the ventilation layer 24 and the moist, warm air of the seat occupant are used, whereby the occupant's moisture is very well absorbed by the inflowing air and transported further in the direction of the fan. Blowing the seat occupant is avoided. If the air flow of the seat ventilation is used at the same time for heating the seat, then a heating element, not shown here, is necessary for heating the air flow, for example before entering the ventilation layer 24. In this case, the above-described seat heating by means of resistance wires in the upper cushion layer 32 can be dispensed with.
  • the air supply device 42 on the pressure side of the radial fan 40 comprises a channel arrangement 50, via which the air outflow opening 16 in the upper region of the backrest 12 can be supplied with an air flow to supply the head, shoulder and neck area of the seat occupant.
  • a heating element 52 in the form of a so-called PTC element is arranged within the channel arrangement 50, with which the air flow can be heated to supply the head, shoulder and neck area of the seat occupant.
  • This air flow is used in particular in the case of open motor vehicles, that is to say motor vehicles with an openable roof, for supplying the head, shoulders and neck area of the seat occupant with warm air in order to minimize undesirable drafts caused by the so-called air roller which occurs when the vehicle is open.
  • a regulating member 56 is arranged, through which the air flow generated by the blower 40 can partially or completely flow out via an air outlet 58.
  • the control element 56 is only designed as a flap 58; Likewise, however, other common regulatory bodies, such as. B. flaps or the like.
  • the air flow emerging at the air outflow opening 16 can thus be adjusted or switched off by means of the control element 56.
  • the air duct 50 runs upwards between the headrest 14 and a covering part 60 of the backrest 12, so that only the air outflow opening 16 can be seen from the outside of the duct arrangement 50.
  • a further control element 62 is provided between the ventilation layer 24 and the inlet side of the blower 40 within the air intake opening 48.
  • This control element 62 can be used to set whether the fan 40 should flow into the fan 40 on the inlet side with air from the ventilation layer 24 or from an intermediate space 64, which will be described below, via an air inlet channel 66.
  • intermediate positions of the control element 62 are also possible, so that both air from the ventilation layer 24 and air from the space 64 can get into the blower 40 at the same time. Accordingly, if only air from the ventilation layer 24 is to get into the blower 40, the two flaps 68 of the control member 62 are opened completely, whereby the air intake duct 66 is closed at the same time by means of the lower flap 68. If only air is to be sucked in from the intermediate space 64, the flaps 68 in the exemplary embodiment shown are to be set in a vertical position - in contact with the ventilation layer 24.
  • the air outflow opening 16 can be supplied with an air flow without the seat ventilation having to be activated at the same time.
  • the two flaps 68 would then be arranged in their vertical position and the air intake opening 48 closed. If the seat ventilation is to be operated at a medium intensity and, for example, if the air flow at the air outflow opening 16 is to be operated at a high intensity at the same time, the two flaps 68 can be set in an intermediate position - as shown in FIG. 3.
  • the blower 40 draws in part of the air from the ventilation layer 24 and part of the air from the intermediate space 64 when the flaps 68 are half open, as a result of which a relatively large amount of air can be provided at the air outflow opening 16 at the air outflow opening 16. If, on the other hand, no air flow is to be provided at the air outflow opening 16, the air flow can be prevented via the control element 56. With closed control element 56 the seat ventilation can be independent of the ventilation of the head, shoulder and neck area of the seat occupant.
  • the intermediate space 64 is delimited on the front by the plastic cover 20 and on the rear by a rear covering part 70 of the backrest 12. It is clear that corresponding openings 74 for the air inlet openings 44, 46 of the ventilation layer 24 and an opening 76 for the air outlet 58 can be provided in the covering part 70.
  • the backrest 12 is shown in a further embodiment of the invention in a schematic sectional view.
  • the backrest support (not shown) instead of the plastic cover 20 comprises a wire frame 78 with a cover layer 80, in front of which so-called multi-contour bubbles 82 are arranged horizontally and one above the other.
  • the contour of the seat can be adjusted by means of these multi-contour bubbles 82 by inflating these multi-contour bubbles 82 more or less with air.
  • a further cover layer 84 In front of these multi-contour bladders 82 is a further cover layer 84, on which the foam pads 22 designed according to the embodiment according to FIG. 2 are supported.
  • an air-permeable cushioning material such as B. rubber hair, a barrier layer, not shown here, must additionally be provided between the ventilation layer 24 and the rubber hair layer 22 so that an overflow of air from the ventilation layer 24 into the rubber hair layer 22 is avoided.

Landscapes

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

Abstract

The invention relates to a motor vehicle seat having an air supply device (42) by means of which a ventilation layer (24) of the cushion (18) of the seat can be flown through by an airflow in order to ventilate the seat and/or to heat the seat. The motor vehicle seat also comprises an air outflow opening (16) of the air supply device (42), which is located in the upper area of the seat and via which the head area, shoulder area and the back of the neck area of the seat occupant can be exposed to an airflow. To this end, a fan (40) is assigned to the air supply device (42). In order to create a motor vehicle seat with a universally installable air supply device, the fan can be supplied with air from the ventilation layer (24) of the cushion (18) of the seat in order to produce the airflow for the head area, shoulder area and the back of the neck area of the seat occupant.

Description

Kraftfahrzeugsitz mit einer Luftversorgungseinrichtung Motor vehicle seat with an air supply device
Die Erfindung betrifft einen Kraftfahrzeugsitz mit einer Luftversorgungseinrichtung der im Oberbegriff des Patentanspruchs 1 angegebenen Art .The invention relates to a motor vehicle seat with an air supply device of the type specified in the preamble of claim 1.
Aus der DE 100 54 008 AI ist bereits ein Kraftfahrzeugsitz als bekannt zu entnehmen, bei dem die Ventilationsschicht des Polsters eines Sitzkissens oder einer Rückenlehne zur Sitzbelüftung und/oder zur Sitzbeheizung mit einem aus der Luftversorgungseinrichtung stammenden Luftstrom durchflutbar ist . Außerdem umfasst die dort gezeigte Luftversorgungseinrichtung eine Luftausströmöffnung im oberen Bereich des Sitzes, über welche der Kopf-, Schulter- und Nackenbereich des Sitzinsassen mit einem Luftstrom versorgt werden kann. Die Ventilationsschicht des Polsters und die Luftausströmöffnung im oberen Bereich des Sitzes werden dabei über ein gemeinsames Gebläse mit Luft versorgt.From DE 100 54 008 AI a motor vehicle seat can already be seen as known, in which the ventilation layer of the cushion of a seat cushion or a backrest for seat ventilation and / or for seat heating can be flooded with an air flow originating from the air supply device. In addition, the air supply device shown there comprises an air outflow opening in the upper region of the seat, via which the head, shoulder and neck region of the seat occupant can be supplied with an air flow. The ventilation layer of the upholstery and the air outlet opening in the upper area of the seat are supplied with air by a common blower.
Aufgabe der vorliegenden Erfindung ist es, einen Kraftfahrzeugsitz der eingangs genannten Art zu schaffen, bei der die Luftversorgungen des Polsters und des Kopf-, Schulter- und Nackenbereiches des Sitzinsassen universeller miteinander kombiniert werden können. Die erfindungsgemäße Lösung dieser Aufgabe ergibt sich aus den Merkmalen des Patentanspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind den übrigen Ansprüchen zu entnehmen.The object of the present invention is to provide a motor vehicle seat of the type mentioned at the outset, in which the air supplies to the upholstery and the head, shoulder and neck area of the seat occupant can be combined more universally. The solution to this problem according to the invention results from the features of patent claim 1. Advantageous embodiments of the invention can be found in the remaining claims.
Bei der Luftversorgungseinrichtung des Kraftfahrzeugsitzes nach der Erfindung ist das Gebläse zur Erzeugung des Luftstroms für den Kopf-, Schulter- und Nackenbereich des Sitzinsassen mit Luft aus der Ventilationsschicht des Polsters des Sitzes versorgbar, so dass die zur Sitzbelüftung und/oder zur Sitzbeheizung ohnehin gebrauchte Luft auch noch zur Beaufschlagung des Kopf-, Schulter- und Nackenbereichs des Sitzinsassen verwendet werden kann. So ist es beispielsweise möglich, die Luft in der Ventilationsschicht über die Sitzheizung vorwärmen zu lassen, um diese anschließend mittels des Gebläses - ggf. unter Aufwärmung durch ein weiteres Heizelement - an die Luftausströmδffnung zu überführen. Da die Luft zur Erzeugung des LuftStroms für den Kopf-, Schulter- und Nackenbereich des Sitzinsassen innerhalb der Ventilationsschicht bis zu dem Einlass des Gebläses gelangt, braucht zumindest in diesem Bereich keine zusätzliche Kanalführung vorgesehen werden.In the air supply device of the motor vehicle seat according to the invention, the fan for generating the air flow for the head, shoulder and neck area of the seat occupant can be supplied with air from the ventilation layer of the seat cushion, so that the air used for seat ventilation and / or seat heating is used anyway can also be used to act on the head, shoulder and neck area of the seat occupant. For example, it is possible to preheat the air in the ventilation layer via the seat heating, in order to then transfer it to the air outflow opening by means of the fan, possibly with heating by a further heating element. Since the air for generating the air flow for the head, shoulder and neck area of the seat occupant reaches the inlet of the blower within the ventilation layer, at least in this area no additional ducting needs to be provided.
In einer vorteilhaften Ausgestaltung der Erfindung ist die Ventilationsschicht auf der Saugseite des Gebläses angeordnet, welches den Luftstrom für den Kopf-, Schulter- und Nackenbereich des Sitzinsassen erzeugt. Beim Betrieb des Gebläses wird hierdurch Luft aus der Ventilationsschicht angesaugt und gleichzeitig die Ventilationsschicht zur Sitzbelüftung mit Luft durchflutet. Die angesaugte Luft wird dann vom Gebläse zur Luftausströmöffnung im oberen Bereich des Sitzes weitertransportiert. Ein besonders vorteilhafter Aufbau des Polsters ergibt sich, wenn Lufteinlassöffnungen der Ventilationsschicht nahe der Randseite des Polsters angeordnet sind und die Luftansaugöffnung des Gebläses in einem zentralen Bereich des Polsters vorgesehen ist. Durch diese Anordnung ist der Weg des Luftstroms zwischen der Lufteinlassöffnung der Ventilationsschicht und der Luftansaugoffnung des Gebläses von allen Seiten des Polsters etwa gleich lang, so dass sich eine sehr homogene Luftverteilung innerhalb der Ventilationsschicht ergibt.In an advantageous embodiment of the invention, the ventilation layer is arranged on the suction side of the blower, which generates the air flow for the head, shoulder and neck area of the seat occupant. When the blower is in operation, air is sucked in from the ventilation layer and at the same time air is flooded through the ventilation layer for seat ventilation. The sucked-in air is then transported onwards by the blower to the air outlet opening in the upper area of the seat. A particularly advantageous construction of the upholstery results if air inlet openings of the ventilation layer are arranged near the edge of the upholstery and the air intake opening of the blower is provided in a central region of the upholstery. With this arrangement, the path of the air flow between the air inlet opening of the ventilation layer and the air intake opening of the blower is approximately the same length from all sides of the cushion, so that a very homogeneous air distribution within the ventilation layer results.
Zwischen dem Gebläse und der LuftausStrömöffnung für den Kopf-, Schulter- und Nackenbereich des Sitzinsassen kann ein Regelorgan vorgesehen sein, durch welches der in dem Gebläse erzeugte Luftstrom zumindest teilweise zu einem Luftauslass abströmbar ist. Sollte beispielsweise in der Ventilationsschicht mehr Luft zur Sitzbelüftung benötigt werden, als an der Luftausströmöffnung zur Versorgung des Kopf-, Schulter- und Nackenbereichs des Sitzinsassen gebraucht wird, so kann über das Regelorgan dieser Luftstrom entsprechend minimiert oder sogar vollständig unterbunden werden. Die überschüssige Luft wird entsprechend über den Luftauslass abgelassen.Between the fan and the air outlet opening for the head, shoulder and neck area of the seat occupant, a control element can be provided, through which the air flow generated in the fan can be at least partially discharged to an air outlet. If, for example, more air is required for seat ventilation in the ventilation layer than is needed at the air outflow opening to supply the head, shoulder and neck area of the seat occupant, this air flow can be correspondingly minimized or even completely prevented by the control element. The excess air is drained through the air outlet accordingly.
Außerdem kann zwischen der Ventilationsschicht des Polsters und dem Gebläse ein weiteres Regelorgan vorgesehen werden, durch welches das Gebläse mit Luft von außerhalb der Ventilationsschicht versorgt werden kann. Sollte demgemäß innerhalb der Ventilationsschicht relativ wenig oder gar keine Luft benötigt werden, so kann das Gebläse zur Erzeugung des Luftstroms für den Kopf-, Schulter- und Nackenbereich des Sitzinsassen auch mit Luft von außerhalb der Ventilationsschicht versorgt werden. Mit anderen Worten ist es also möglich, das Gebläse zur Erzeugung des Luftstroms für den Kopf-, Schulter- und Nackenbereich des Sitzinsassen mit Luft aus der Ventilationsschicht und/oder von außerhalb der Ventilationsschicht zu speisen.In addition, a further control element can be provided between the ventilation layer of the cushion and the blower, through which the blower can be supplied with air from outside the ventilation layer. Accordingly, if relatively little or no air is required within the ventilation layer, the fan for generating the air flow for the head, shoulder and neck region of the seat occupant can also be supplied with air from outside the ventilation layer. In other words, it is possible to use the blower to generate the airflow to feed the head, shoulder and neck area of the seat occupant with air from the ventilation layer and / or from outside the ventilation layer.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von zwei bevorzugten Ausführungsbeispielen sowie anhand der Zeichnungen; diese zeigen in:Further advantages, features and details of the invention emerge from the following description of two preferred exemplary embodiments and with reference to the drawings; these show in:
Fig. 1 eine schematische Perspektivansicht auf den als Integralsitz ausgebildeten erfindungsgemäßen Kraftfahrzeugsitz ;1 shows a schematic perspective view of the motor vehicle seat according to the invention designed as an integral seat;
Fig. 2 eine schematische Schnittansicht durch die Rückenlehne des erfindungsgemäßen Kraftfahrzeugsitzes;2 shows a schematic sectional view through the backrest of the motor vehicle seat according to the invention;
Fig. 3 eine vergrößerte Darstellung des Details III in Figur 2, wobei der Bereich nahe des Gebläses der Luftversorgungseinrichtung des Sitzes dargestellt ist; und inFigure 3 is an enlarged view of detail III in Figure 2, showing the area near the fan of the air supply device of the seat. and in
Fig. 4 eine schematische Schnittansicht durch die Rückenlehne • des erfindungsgemäßen Kraftfahrzeugsitzes nach einer zweiten Ausführungsform.Fig. 4 is a schematic sectional view through the backrest • of the motor vehicle seat according to the invention according to a second embodiment.
Von einem als Integralsitz ausgebildeten Kraftfahrzeugsitz ist in Figur 1 in schematischer Perspektivansicht ein Sitzteil 10 und eine Rückenlehne 12 dargestellt, an deren oberen Ende eine Kopfstütze 14 höhenverstellbar angeordnet ist. Die Kopfstütze 14 liegt dabei in Überdeckung mit dem oberen Bereich der Rückenlehne 12 vor dieser angeordnet. In einem unteren Bereich der Kopfstütze 14 ist eine Luftausströmöffnung 16 erkennbar, über die der Kopf-, Schulter- und Nackenbereich des Sitzinsassen auf im Weiteren noch detailliert erläuterte Weise mit einem Luftstrom aus einer Luftversorgungseinrichtung beaufschlagt werden kann. In Zusammenschau mit Figur 2, in der eine schematische Schnittansicht durch die Rückenlehne 12 sowie die Kopfstütze 14 des Fahrzeugsitzes dargestellt ist, ist der Aufbau der Rückenlehne 12 mit deren Polster 18 sowie der Kopfstütze 14 ersichtlich. Von einem Lehnenträger der Rückenlehne 12 ist in Figur 2 lediglich eine Kunststoffabdeckung 20 erkennbar, die sich über die annähernd gesamte Höhe der Rückenlehne 12 erstreckt. Auf der Kunststoffabdeckung 20 ist eine Schaumstoffaufläge 22 angeordnet, welche ebenfalls über die gesamte Höhe der Rückenlehne 12 verläuft. Anstelle der Schaumstoffauflage 22 wären selbstverständlich auch andere gängige Polstermaterialien, wie z. B. Gummihaar oder dgl . , denkbar. Auf der Schaumstoffaufläge 22 ist eine Ventilationsschicht 24 angeordnet, welche hier im Wesentlichen aus einem sogenannten Abstandsgewirke aufgebaut ist. Das Abstandsgewirke 24 hat dabei die Eigenschaft, besonders gut von einem Luftstrom durchflutet werden zu können. Die Ventilationsschicht 24 erstreckt sich ebenfalls über die annähernd gesamte Höhe der Rückenlehne 12, und außerdem verläuft die Ventilationsschicht 24 sowohl in einem in Figur 1 erkennbaren mittleren Spiegelbereich 26 sowie in den Seitenwangen 28 der Rückenlehne 12. Zwischen der Ventilationsschicht 24 und einem Polsterbezug 30 der Rückenlehne 12 ist eine obere Polsterschicht 32 vorgesehen, die aus einer Unterschicht 34 und einer Oberschicht 36 jeweils aus luftdurchlässiger Polsterwatte, Wollvlies oder einem offenporigen Schaumstoff oder dgl. bestehen. Die Unterschicht 34 der oberen Polsterschicht 32 ist mit einer Vielzahl von Sacklöchern 38 versehen, welche von der durchgängig verlaufenden Oberschicht 36 überdeckt sind und im Überdeckungsbereich mit der Ventilationsschicht 24 angeordnet sind. In dem gezeigten Ausführungsbeispiel sind zwischen der Unterschicht 34 und der Oberschicht 36 der oberen Polsterschicht 32 auch nicht gezeigte Heizdrähte einer elektrischen Sitzheizung angeordnet. Der Polsterbezug 30 besteht aus einem Textilstoff oder einem perforierten Lederbzw. Kunststoff.A seat part 10 and a backrest 12 of a motor vehicle seat designed as an integral seat is shown in a schematic perspective view in FIG. 1, at the upper end of which a headrest 14 is arranged such that it can be adjusted in height. The headrest 14 is arranged in overlap with the upper region of the backrest 12 in front of this. An air outflow opening 16 can be seen in a lower region of the headrest 14, through which the head, An air flow from an air supply device can be applied to the shoulder and neck area of the seat occupant in a manner which will be explained in more detail below. In conjunction with Figure 2, in which a schematic sectional view through the backrest 12 and the headrest 14 of the vehicle seat is shown, the structure of the backrest 12 with its cushion 18 and the headrest 14 can be seen. From a backrest support of the backrest 12, only a plastic cover 20 can be seen in FIG. 2, which extends over the almost entire height of the backrest 12. A foam pad 22 is arranged on the plastic cover 20 and also extends over the entire height of the backrest 12. Instead of the foam pad 22 would of course also other common cushioning materials, such as. B. rubber hair or the like. , conceivable. A ventilation layer 24 is arranged on the foam pad 22, which here is essentially composed of a so-called spacer fabric. The spacer fabric 24 has the property of being able to be particularly well flowed through by an air stream. The ventilation layer 24 also extends over almost the entire height of the backrest 12, and in addition the ventilation layer 24 runs both in a central mirror region 26 which can be seen in FIG. 1 and in the side cheeks 28 of the backrest 12. Between the ventilation layer 24 and a cushion cover 30 of the backrest 12, an upper cushion layer 32 is provided, which consist of a lower layer 34 and an upper layer 36 each made of air-permeable cushioning wadding, wool fleece or an open-cell foam or the like. The lower layer 34 of the upper cushion layer 32 is provided with a plurality of blind holes 38, which are covered by the continuous upper layer 36 and arranged in the overlap area with the ventilation layer 24 are. In the exemplary embodiment shown, heating wires (not shown) of an electric seat heater are also arranged between the lower layer 34 and the upper layer 36 of the upper cushion layer 32. The cushion cover 30 consists of a textile or a perforated leather or. Plastic.
An der Rückseite der Kunststoffabdeckung 20 ist etwa auf halber Höhe in einem zentralen Bereich der Rückenlehne 12 ein Gebläse 40 einer Luftversorgungseinrichtung 42 angeordnet, durch welches der Luftstrom zum Durchfluten der Ventilationsschicht 24 erzeugt werden kann. Hierzu sind nahe der oberen und unteren Randseite des Polsters 18 der Rückenlehne 12 Lufteinlassöffnungen 44, 46 vorgesehen, welche aus der Kunststoffabdeckung 20 und aus der Schaumstoffaufläge 22 jeweils ausgespart sind. Das Gebläse 40 ist hier als Radiallüfter ausgebildet, wobei dessen Saugseite in Richtung der Ventilationsschicht 24 zeigt. Demgemäß ist zwischen der Ventilationsschicht 24 und der Eingangsseite des Gebläses 40 eine Luftansaugoffnung 48 aus der Schaumstoffaufläge 22 ausgespart, so dass die Ventilationsschicht 24 mit dem Gebläse 40 in Verbindung steht. Zur Sitzbelüftung des Polsters 18 der Rückenlehne 12 wird die Ventilationsschicht 24 von einem mit Pfeilen schematisch angedeuteten Luftstrom durchflutet, welcher über die Luftansaugöffnungen 46, 48 an den Randseiten des Polsters 18 in die Ventilationsschicht 24 einströmen kann und im Weiteren bis zur Luftansaugöffnung 48 des Gebläses 40 im zentralen Bereich des Polsters 18 strömt. Mit anderen Worten wird der Luftstrom innerhalb der Ventilationsschicht 24 durch die Saugwirkung des Gebläses 40 erzielt. Es ist klar, dass die Ventilationsschicht 24 gegenüber der Schaumstoffauflage 22 zumindest annähernd luftdicht abgetrennt sein muss. Wird anstelle der Schaumstoffauflage 22 - wie oben erwähnt - Gummihaar oder ein ähnliches luftdurchlässiges Material eingesetzt, so ist zwischen der Ventilationsschicht 24 und dem Gummihaar noch eine luftundurchlässige Schicht angeordnet .On the back of the plastic cover 20, a blower 40 of an air supply device 42 is arranged approximately halfway up a central area of the backrest 12, by means of which the air flow for flooding the ventilation layer 24 can be generated. For this purpose, air inlet openings 44, 46 are provided near the upper and lower edge side of the cushion 18 of the backrest 12, which are each recessed from the plastic cover 20 and from the foam pads 22. The blower 40 is designed here as a radial fan, with its suction side pointing in the direction of the ventilation layer 24. Accordingly, an air intake opening 48 is cut out of the foam cover 22 between the ventilation layer 24 and the inlet side of the blower 40, so that the ventilation layer 24 is connected to the blower 40. For seat ventilation of the cushion 18 of the backrest 12, the ventilation layer 24 is flooded by an air flow, indicated schematically by arrows, which can flow into the ventilation layer 24 via the air suction openings 46, 48 on the edge sides of the cushion 18 and further up to the air suction opening 48 of the blower 40 flows in the central region of the cushion 18. In other words, the air flow within the ventilation layer 24 is achieved by the suction effect of the fan 40. It is clear that the ventilation layer 24 must be at least approximately airtight in relation to the foam pad 22. Is instead of the foam pad 22 - as mentioned above - rubber hair or a Similar air-permeable material is used, an air-impermeable layer is still arranged between the ventilation layer 24 and the rubber hair.
Insbesondere in Zusammenschau mit Figur 3, in welcher das Detail III aus Figur 2 vergrößert dargestellt ist, wird die Funktionsweise der Sitzbelüftung ersichtlich. Beim Aktivieren der Sitzbelüftung wird über das Gebläse 40 relativ trockene Luft über die Lufteinlassöffnungen 46, 48 in die Ventilationsschicht eingesaugt. Vom Sitzinsassen erzeugte Feuchtigkeit diffundiert durch den Polsterbezug 30 und die obere Polsterschicht 32 und wird von dem trockenen Luftstrom in der Ventilationsschicht 24 aufgenommen und danach in Richtung des Gebläses 40 gesaugt. Die Aufnahme der Feuchtigkeit des Sitzinsassen erfolgt insbesondere im Bereich der Sacklöcher 38 der oberen Polsterschicht 32. Dabei macht man sich den relativ hohen Temperaturgradienten zwischen der trockenen, in die Ventilationsschicht 24 einströmenden Luft und der feuchten warmen Luft des Sitzinsassen zunutze, wodurch die Feuchtigkeit des Insassen sehr gut durch die einströmende Luft absorbiert und in Richtung des Gebläses weitertransportiert wird. Ein Anblasen des Sitzinsassen wird vermieden. Wird der Luftstrom der Sitzbelüftung gleichzeitig zur Sitzheizung genutzt, so ist ein hier nicht gezeigtes Heizelement zum Beheizen des Luftstroms beispielsweise vor dem Eintritt in die Ventilationsschicht 24 notwendig. In diesem Fall kann auf die vorbeschriebene Sitzheizung durch Widerstandsdrähte in der oberen Polsterschicht 32 verzichtet werden.The operation of the seat ventilation is particularly evident when viewed in conjunction with FIG. 3, in which detail III from FIG. 2 is shown enlarged. When the seat ventilation is activated, relatively dry air is sucked into the ventilation layer via the air inlet openings 46, 48 via the blower 40. Moisture generated by the seat occupant diffuses through the cushion cover 30 and the upper cushion layer 32 and is absorbed by the dry air flow in the ventilation layer 24 and then sucked in the direction of the blower 40. The absorption of the moisture of the seat occupant takes place in particular in the area of the blind holes 38 of the upper cushion layer 32. The relatively high temperature gradients between the dry air flowing into the ventilation layer 24 and the moist, warm air of the seat occupant are used, whereby the occupant's moisture is very well absorbed by the inflowing air and transported further in the direction of the fan. Blowing the seat occupant is avoided. If the air flow of the seat ventilation is used at the same time for heating the seat, then a heating element, not shown here, is necessary for heating the air flow, for example before entering the ventilation layer 24. In this case, the above-described seat heating by means of resistance wires in the upper cushion layer 32 can be dispensed with.
Wie insbesondere aus Figur 3 erkennbar ist, umfasst die Luftversorgungseinrichtung 42 auf der Druckseite des Radialgebläses 40 eine Kanalanordnung 50, über welche die Luftausströmδffnung 16 im oberen Bereich der Rückenlehne 12 zur Versorgung des Kopf-, Schulter- und Nackenbereiches des Sitzinsassen mit einem Luftstrom versorgt werden kann. Innerhalb der Kanalanordnung 50 ist ein Heizelement 52 in Form eines sogenannten PTC-Elementes angeordnet, mit welchem der Luftstrom zur Versorgung des Kopf-, Schulter- und Nackenbereiches des Sitzinsassen erwärmt werden kann. Dieser Luftstrom dient insbesondere bei offenen Kraftwagen, also Kraftwagen mit zu öffnendem Dach zur Versorgung des Kopf-, Schulter- und Nackenbereiches des Sitzinsassen mit Warmluft, um unerwünschte Zuglufterscheinungen durch die bei offener Fahrt entstehende sogenannte Luftwalze zu minimieren. Zwischen dem druckseitigen Auslass 54 des Gebläses 40 und der Luftausströmöffnung 16 im oberen Bereich der Rückenlehne 12 ist ein Regelorgan 56 angeordnet, durch welches der durch das Gebläse 40 erzeugte Luftstrom teilweise oder vollständig über einen Luftauslass 58 abströmen kann. Im hier gezeigten Ausführungsbeispiel ist das Regelorgan 56 lediglich als Klappe 58 ausgebildet; gleichfalls wären jedoch auch andere gängige Regelorgane, wie z. B. Drehklappen oder dgl. denkbar. Mittels des Regelorgans 56 kann somit der an der Luf ausstrδmöffnung 16 austretende Luftstrom eingestellt bzw. abgestellt werden. Nach oben hin verläuft der Luftkanal 50 verdeckt zwischen der Kopfstütze 14 und einem Verkleidungsteil 60 der Rückenlehne 12, so dass von der Kanalanordnung 50 von außen her lediglich die Luftausströmöffnung 16 erkennbar ist.As can be seen in particular from FIG. 3, the air supply device 42 on the pressure side of the radial fan 40 comprises a channel arrangement 50, via which the air outflow opening 16 in the upper region of the backrest 12 can be supplied with an air flow to supply the head, shoulder and neck area of the seat occupant. A heating element 52 in the form of a so-called PTC element is arranged within the channel arrangement 50, with which the air flow can be heated to supply the head, shoulder and neck area of the seat occupant. This air flow is used in particular in the case of open motor vehicles, that is to say motor vehicles with an openable roof, for supplying the head, shoulders and neck area of the seat occupant with warm air in order to minimize undesirable drafts caused by the so-called air roller which occurs when the vehicle is open. Between the pressure-side outlet 54 of the blower 40 and the air outflow opening 16 in the upper region of the backrest 12, a regulating member 56 is arranged, through which the air flow generated by the blower 40 can partially or completely flow out via an air outlet 58. In the exemplary embodiment shown here, the control element 56 is only designed as a flap 58; Likewise, however, other common regulatory bodies, such as. B. flaps or the like. The air flow emerging at the air outflow opening 16 can thus be adjusted or switched off by means of the control element 56. The air duct 50 runs upwards between the headrest 14 and a covering part 60 of the backrest 12, so that only the air outflow opening 16 can be seen from the outside of the duct arrangement 50.
Zwischen der Ventilationsschicht 24 und der Eingangsseite des Gebläses 40 ist innerhalb der Luftansaugöffnung 48 ein weiteres Regelorgan 62 vorgesehen. Durch dieses Regelorgan 62 kann eingestellt werden, ob das Gebläse 40 eingangsseitig mit Luft aus der Ventilationsschicht 24 oder aber aus einem im Weiteren noch beschriebenen Zwischenraum 64 über einen Lufteinlasskanal 66 in das Gebläse 40 einströmen soll. Natürlich sind auch Zwischenstellungen des Regelorgans 62 möglich, so dass sowohl Luft aus der Ventilationsschicht 24, wie auch Luft aus dem Zwischenraum 64 gleichzeitig in das Gebläse 40 gelangen kann. Soll demgemäß lediglich Luft aus der Ventilationsschicht 24 in das Gebläse 40 gelangen, so werden die beiden Klappen 68 des Regelorgans 62 vollständig geöffnet, wodurch gleichzeitig der Luftansaugkanal 66 mittels der unteren Klappe 68 verschlossen wird. Soll lediglich Luft aus dem Zwischenraum 64 angesaugt werden, so sind die Klappen 68 in dem gezeigten Ausführungsbeispiel in eine vertikale Lage - an die Ventilationsschicht 24 anliegend einzustellen.A further control element 62 is provided between the ventilation layer 24 and the inlet side of the blower 40 within the air intake opening 48. This control element 62 can be used to set whether the fan 40 should flow into the fan 40 on the inlet side with air from the ventilation layer 24 or from an intermediate space 64, which will be described below, via an air inlet channel 66. Of course, intermediate positions of the control element 62 are also possible, so that both air from the ventilation layer 24 and air from the space 64 can get into the blower 40 at the same time. Accordingly, if only air from the ventilation layer 24 is to get into the blower 40, the two flaps 68 of the control member 62 are opened completely, whereby the air intake duct 66 is closed at the same time by means of the lower flap 68. If only air is to be sucked in from the intermediate space 64, the flaps 68 in the exemplary embodiment shown are to be set in a vertical position - in contact with the ventilation layer 24.
Durch dieses Regelorgan 62 kann somit erreicht werden, dass beispielsweise die Luftausströmöffnung 16 mit einem Luftstrom versorgt werden kann, ohne dass gleichzeitig die Sitzbelüftung aktiviert zu sein braucht. In diesem Fall wären die beiden Klappen 68 dann in ihrer vertikalen Lage angeordnet und die Luftansaugöffnung 48 verschlossen. Soll die Sitzbelüftung in einer mittleren Intensität betrieben werden, und soll beispielsweise der Luftstrom an der Luftausströmöffnung 16 mit hoher Intensität gleichzeitig betrieben werden, so können die beiden Klappen 68 in einer Zwischenposition - wie in Figur 3 dargestellt - eingestellt werden. Im gezeigten Fall saugt das Gebläse 40 bei halb offenen Klappen 68 einen Teil der Luft aus der Ventilationsschicht 24 und einen Teil der Luft aus dem Zwischenraum 64 an, wodurch in der Summe an der Luftausströmöffnung 16 relativ viel Luft an der Luftausströmöffnung 16 bereitgestellt werden kann. Soll hingegen an der Luftausströmöffnung 16 kein Luftstrom bereitgestellt werden, so kann über das Regelorgan 56 der Luftstrom unterbunden werden. Bei geschlossenem Regelorgan 56 kann die Sitzbelüftung unabhängig von der Belüftung des Kopf- , Schulter- und Nackenbereiches des Sitzinsassen erfolgen.By means of this control element 62 it can thus be achieved that, for example, the air outflow opening 16 can be supplied with an air flow without the seat ventilation having to be activated at the same time. In this case, the two flaps 68 would then be arranged in their vertical position and the air intake opening 48 closed. If the seat ventilation is to be operated at a medium intensity and, for example, if the air flow at the air outflow opening 16 is to be operated at a high intensity at the same time, the two flaps 68 can be set in an intermediate position - as shown in FIG. 3. In the case shown, the blower 40 draws in part of the air from the ventilation layer 24 and part of the air from the intermediate space 64 when the flaps 68 are half open, as a result of which a relatively large amount of air can be provided at the air outflow opening 16 at the air outflow opening 16. If, on the other hand, no air flow is to be provided at the air outflow opening 16, the air flow can be prevented via the control element 56. With closed control element 56 the seat ventilation can be independent of the ventilation of the head, shoulder and neck area of the seat occupant.
Der Zwischenraum 64 wird vorderseitig durch die Kunststoffabdeckung 20 und an der Rückseite durch ein rückwärtiges Verkleidungsteil 70 der Rückenlehne 12 begrenzt. Es ist klar, dass in dem Verkleidungsteil 70 entsprechende Öffnungen 74 für die Lufteinlassöffnungen 44, 46 der Ventilationsschicht 24 sowie eine Öffnung 76 für den Luftauslass 58 vorgesehen sein können.The intermediate space 64 is delimited on the front by the plastic cover 20 and on the rear by a rear covering part 70 of the backrest 12. It is clear that corresponding openings 74 for the air inlet openings 44, 46 of the ventilation layer 24 and an opening 76 for the air outlet 58 can be provided in the covering part 70.
In Figur 4 ist in schematischer Schnittansicht die Rückenlehne 12 in einer weiteren Ausführungsform der Erfindung dargestellt. Diese unterscheidet sich von der Ausführungsform gemäß Figur 2 jedoch nur darin, dass der nicht dargestellte Rückenlehnenträger anstelle der Kunststoffabdeckung 20 ein Drahtgestell 78 mit einer Deckschicht 80 umfasst, vor der sogenannte Multikonturblasen 82 horizontal verlaufend und übereinander angeordnet sind. Über diese Multikonturblasen 82 kann die Kontur des Sitzes verstellt werden, indem diese Multikonturblasen 82 mehr oder weniger mit Luft aufgeblasen werden. Vor diesen Multikonturblasen 82 verläuft eine weitere Deckschicht 84, auf der sich die gemäß der Ausführungsform nach Figur 2 ausgebildete Schaumstoffaufläge 22 abstützt. Wird anstelle dieser Schäumstoffaufläge 22 ein luftdurchlässiges Polstermaterial, wie z. B. Gummihaar, verwendet, so muss zwischen der Ventilationsschicht 24 und der Gummihaarschicht 22 zusätzlich eine hier nicht dargestellte Sperrschicht vorgesehen werden, damit ein Überströmen von Luft aus der Ventilationsschicht 24 in die Gummihaarschicht 22 vermieden wird. In Figure 4, the backrest 12 is shown in a further embodiment of the invention in a schematic sectional view. However, this differs from the embodiment according to FIG. 2 only in that the backrest support (not shown) instead of the plastic cover 20 comprises a wire frame 78 with a cover layer 80, in front of which so-called multi-contour bubbles 82 are arranged horizontally and one above the other. The contour of the seat can be adjusted by means of these multi-contour bubbles 82 by inflating these multi-contour bubbles 82 more or less with air. In front of these multi-contour bladders 82 is a further cover layer 84, on which the foam pads 22 designed according to the embodiment according to FIG. 2 are supported. Instead of this foam pads 22, an air-permeable cushioning material such. B. rubber hair, a barrier layer, not shown here, must additionally be provided between the ventilation layer 24 and the rubber hair layer 22 so that an overflow of air from the ventilation layer 24 into the rubber hair layer 22 is avoided.

Claims

Patentansprüche claims
Kraftfahrzeugsitz mit einer Luftversorgungseinrichtung (42) mittels der eine Ventilationsschicht (24) des Polsters (18) des Sitzes zur Sitzbelüftung und/oder zur Sitzheizung mit einem Luftstrom durchflutbar ist, und mit einer im oberen Bereich des Sitzes angeordneten Luftausströmöffnung (16) der Luftversorgungseinrichtung (42), über die der Kopf-, Schulter- und Nackenbereich des Sitzinsassen mit einem Luftstrom beaufschlagbar ist, wobei der Luftversorgungseinrichtung (42) ein Gebläse (40) zugeordnet ist, d a d u r c h g e k e n n z e i c h n e t , dass das Gebläse (40) zur Erzeugung des LuftStroms für den Kopf-, Schulter- und Nackenbereich des Sitzinsassen mit Luft aus der Ventilationsschicht (24) des Polsters (18) des Sitzes versorgbar ist.Motor vehicle seat with an air supply device (42) by means of which a ventilation layer (24) of the cushion (18) of the seat can be flooded with an air flow for seat ventilation and / or for seat heating, and with an air outflow opening (16) of the air supply device arranged in the upper region of the seat ( 42), via which the head, shoulder and neck area of the seat occupant can be acted upon by an air stream, the air supply device (42) being assigned a blower (40), characterized in that the blower (40) for generating the air stream for the head -, Shoulder and neck area of the seat occupant can be supplied with air from the ventilation layer (24) of the cushion (18) of the seat.
Kraftfahrzeugsitz nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass das Gebläse (40) zur Erzeugung des LuftStroms für den Kopf-, Schulter- und Nackenbereich des Sitzinsassen auf seiner Saugseite mit Luft aus der VentilationsschichtMotor vehicle seat according to claim 1, which also means that the fan (40) for generating the air flow for the head, shoulder and neck region of the seat occupant on its suction side with air from the ventilation layer
(24) versorgbar ist. (24) is available.
3. Kraftfahrzeugsitz nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass Lufteinlassöffnungen (44, 46) der3. Motor vehicle seat according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the air inlet openings (44, 46) of
Ventilationsschicht (24) nahe der Randseite des PolstersVentilation layer (24) near the edge of the pad
(18) angeordnet sind und dass eine Luftansaugöffnung (48) des Gebläses (40) in einem zentralen Bereich des Polsters(18) are arranged and that an air intake opening (48) of the blower (40) in a central region of the cushion
(18) vorgesehen ist.(18) is provided.
4. Kraftfahrzeugsitz nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass zwischen dem Gebläse (40) und der Luftausströmöffnung (16) im oberen Bereich des Sitzes ein Regelorgan (56) angeordnet ist, durch welches der durch das Gebläse (40) erzeugte Luftstrom zumindest teilweise zu einem4. Motor vehicle seat according to claim 1, so that a control element (56) is arranged between the blower (40) and the air outlet opening (16) in the upper region of the seat, through which the air flow generated by the blower (40) is at least partially combined
Luftauslass (58) abströmbar ist.Air outlet (58) is flowable.
5. Kraftfahrzeugsitz nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass zwischen der Ventilationsschicht (24) und dem Gebläse (40) ein Regelorgan (62) angeordnet ist, durch welches das Gebläse (40) mit Luft von außerhalb der Ventilationsschicht (24) versorgbar ist.5. Motor vehicle seat according to claim 1, so that a control member (62) is arranged between the ventilation layer (24) and the blower (40), through which the blower (40) can be supplied with air from outside the ventilation layer (24).
6. Kraftfahrzeugsitz nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass die Luftversorgungseinrichtung (42) in den Kraftwagensitz integriert ist. 6. Motor vehicle seat according to claim 1, so that the air supply device (42) is integrated in the motor vehicle seat.
EP04720864A 2003-04-29 2004-03-16 Motor vehicle seat having an air supply device Withdrawn EP1618018A1 (en)

Applications Claiming Priority (2)

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DE10319148A DE10319148B3 (en) 2003-04-29 2003-04-29 Vehicle seat comprises an air supply unit having an air outlet opening arranged in the upper region of the seat, and a fan assigned to the air supply unit
PCT/EP2004/002687 WO2004096601A1 (en) 2003-04-29 2004-03-16 Motor vehicle seat having an air supply device

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EP1618018A1 true EP1618018A1 (en) 2006-01-25

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EP (1) EP1618018A1 (en)
JP (1) JP2006524519A (en)
DE (1) DE10319148B3 (en)
WO (1) WO2004096601A1 (en)

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US20070029862A1 (en) 2007-02-08
US7506924B2 (en) 2009-03-24

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