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DE29824882U1 - Height adjustable motor vehicle seat has flat spring arrangement attached to seat part frame, cross-piece rotated by drive to adjust inclination of linkages and hence seat height - Google Patents

Height adjustable motor vehicle seat has flat spring arrangement attached to seat part frame, cross-piece rotated by drive to adjust inclination of linkages and hence seat height

Info

Publication number
DE29824882U1
DE29824882U1 DE29824882U DE29824882U DE29824882U1 DE 29824882 U1 DE29824882 U1 DE 29824882U1 DE 29824882 U DE29824882 U DE 29824882U DE 29824882 U DE29824882 U DE 29824882U DE 29824882 U1 DE29824882 U1 DE 29824882U1
Authority
DE
Germany
Prior art keywords
part frame
seat part
motor vehicle
seat
height
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.)
Expired - Lifetime
Application number
DE29824882U
Other languages
German (de)
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.)
Faurecia Autositze GmbH
Original Assignee
Faurecia Autositze GmbH and Co KG
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 Faurecia Autositze GmbH and Co KG filed Critical Faurecia Autositze GmbH and Co KG
Priority to DE29824882U priority Critical patent/DE29824882U1/en
Priority claimed from DE1998148952 external-priority patent/DE19848952A1/en
Publication of DE29824882U1 publication Critical patent/DE29824882U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/161—Rods
    • B60N2/1615—Parallelogram-like structure
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B60N2/164—Linear actuator, e.g. screw mechanism
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1695—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable with simultaneous height and inclination adjustment
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1807—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic
    • B60N2/181—Rods
    • B60N2/1814—Parallelogram-like structure
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1807—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic
    • B60N2/1846—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic pivoting about a distant axis, e.g. virtual
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/185—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the drive mechanism
    • B60N2/1853—Linear actuator, e.g. screw mechanism
    • 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
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/72—Attachment or adjustment thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The height adjustable seat has a seat part frame (1) to which a flat spring arrangement (4) is attached. The spring arrangement is attached to the seat part frame on at least one side and at the rear to allow height adjustment. A drive (5) adjusts the inclination of two parallel linkages (2,3) on either side of the frame and rigidly connected by a cross-piece (6) that is rotated by the drive to adjust the inclination of the linkages and hence the seat height.

Description

Anmelder: Faurecia Autositze GmbH & Co. KG Applicant: Faurecia Autositze GmbH & Co. KG

Nordsehler Straße 38, 31655 StadthagenNordsehler Strasse 38, 31655 Stadthagen

Höhenverstellbarer KraftfahrzeugsitzHeight-adjustable vehicle seat

Die Erfindung betrifft einen Kraftfahrzeugsitz.The invention relates to a motor vehicle seat.

Höhenverstellbare Kraftfahrzeugsitze sind in unterschiedlichsten Ausführungsformen bekannt. Bei den bekannten höhenverstellbaren Kraftfahrzeugsitzen ist die untere Einstellposition entweder durch die untere Kontur des Sitzteilrahmens selber oder durch über die untere Kontur vorstehende Aggregate begrenzt.Height-adjustable vehicle seats are known in a wide variety of designs. In the known height-adjustable vehicle seats, the lower adjustment position is limited either by the lower contour of the seat part frame itself or by units that protrude beyond the lower contour.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, bei einem höhenverstellbaren Kraftfahrzeugsitz den Höhenverstellbereich nach unten zu vergrößern. Based on this prior art, the invention is based on the object of increasing the downward height adjustment range of a height-adjustable motor vehicle seat.

Die Lösung dieser Aufgabe erfolgt mit den Merkmalen des Schutzanspruchs 1.This problem is solved with the features of claim 1.

18 749a "··" "* ·" ···· '"* *lV6.12.200218 749a "··""*·" ···· '"* * l V6. 12.2002

Durch die Höhenverstellbarkeit der Sitzbefederung gegenüber dem Sitzteilrahmen ergibt sich ein zusätzlicher Höhenverstellweg der maßgeblichen Polsterfläche, der zu dem Höhenverstellweg addiert werden kann, welcher sich durch den Höhenverstellbereich des Sitzteilrahmens erstreckt. Die zusätzliche Höhenverstellung der Sitzpolsterung erweist sich als besonders vorteilhaft, wenn die Absenkung der ebenen Sitzbefederung in der Nähe des &EEgr;-Punktes, also am hinteren Ende des Sitzteilrahmens vorgenommen wird, wie dies bei der Erfindung vorgesehen ist.The height adjustability of the seat suspension relative to the seat frame results in an additional height adjustment path of the relevant upholstery area, which can be added to the height adjustment path that extends through the height adjustment range of the seat frame. The additional height adjustment of the seat upholstery proves to be particularly advantageous if the lowering of the flat seat suspension is carried out near the �EEgr; point, i.e. at the rear end of the seat frame, as is provided for in the invention.

Bevorzugte weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Preferred further embodiments of the invention emerge from the subclaims.

Nachstehend wird eine bevorzugte Ausführungsform der Erfindung anhand der Zeichnungen im einzelnen erläutert. Es zeigen: A preferred embodiment of the invention is explained in detail below with reference to the drawings.

Figur 1 - eine perspektivische Ansicht des Sitzteils eines Kraftfahrzeugsitzes mit einer Höhenverstell
vor rieht ung;Figure 1 - a perspective view of the seat part of a motor vehicle seat with a height adjustment
before direction;

Figur 2 - eine schematische vertikale Längsschnittdarstellung
entlang Ebene II-II in Figur 1;Figure 2 - a schematic vertical longitudinal section
along plane II-II in Figure 1;

Figur 3 - die Längsschnittdarstellung gemäß Fig. 2 inFigure 3 - the longitudinal section according to Fig. 2 in

gegenüber dieser Darstellung abgesenkter Position. lowered position compared to this representation.

Der Sitzteil eines Kraftfahrzeugsitzes weist einen Sitzteilrahmen 1 auf, der von zwei Querbereichen und zwei Seitenholmen Ib gebildet wird. Über den vorderen QuerbereichThe seat part of a motor vehicle seat has a seat part frame 1, which is formed by two transverse areas and two side members 1b. The front transverse area

18 749a " ""' "&Tgr;&Tgr;&bgr;. 12 . 200218 749a " ""' "&Tgr;&Tgr;β. 12. 2002

la sind die Seitenholme Ib starr miteinander verbunden. Der hintere Querbereich wird durch einen drehbar in entsprechenden Ausnehmungen der hinteren Seitenholme gelagerten Querholm 6 gebildet.la, the side members Ib are rigidly connected to one another. The rear transverse region is formed by a transverse member 6 which is rotatably mounted in corresponding recesses in the rear side members.

Der Sitzteilrahmen 1 ist über Lenker 2 und 3 mit Schienen 7 verbunden. Diese Schienen 7 werden üblicherweise durch die Oberteile von Längsverstellschienen gebildet.The seat part frame 1 is connected to rails 7 via handlebars 2 and 3. These rails 7 are usually formed by the upper parts of longitudinal adjustment rails.

Der Sitzteilrahmen 1 trägt eine eben ausgebildete Befederung 4. Die Befederung 4 wird aus parallel zueinander in Sitzteillängsrichtung, also in Fahrtrichtung, verlaufende Zugfedern 4a gebildet. Die Zugfedern 4a sind als Drahtformfedern ausgebildet und jeweils mit ihrem vorderen Ende in Befestigungshaken Id am vorderen Querbereich la des Sitzteilrahmens 1 eingehängt. Mit ihren hinteren Enden sind die Zugfedern 4a in Hakenbereiche 6a eingehängt, die fest mit dem drehbar gelagerten Querholm 6 verbunden sind.The seat part frame 1 carries a flat spring system 4. The spring system 4 is formed from tension springs 4a running parallel to one another in the longitudinal direction of the seat part, i.e. in the direction of travel. The tension springs 4a are designed as wire form springs and are each hooked with their front end into fastening hooks Id on the front transverse area la of the seat part frame 1. The tension springs 4a are hooked with their rear ends into hook areas 6a, which are firmly connected to the pivotally mounted cross member 6.

Der Querholm 6 ist drehbar in Aufnahmebohrungen Ic der Seitenholme Ib gelagert. Er ist mit zueinander parallelen, auf beiden Seiten des Sitzteilrahmens 1 angeordneten, hinteren Lenkern 2 und 3 drehfest verbunden, üblicherweise verschweißt. Die hinteren Lenker 2 und 3 schwenken um eine karosseriefeste, gemeinsame horizontale Lagerachse 3a. Der Lenker 3 ist über die Lagerachse 3a hinaus um einen Hebelarm 3b verlängert. Mit dem Hebelarm 3b ist ein Ende eines Stellelements 5b einer insgesamt mit 5 bezeichneten Antriebsvorrichtung über ein Gelenk 3c verbunden.The cross member 6 is rotatably mounted in receiving holes 1c of the side members 1b. It is connected in a rotationally fixed manner, usually welded, to rear links 2 and 3 which are parallel to one another and arranged on both sides of the seat subframe 1. The rear links 2 and 3 pivot about a common horizontal bearing axis 3a which is fixed to the body. The link 3 is extended beyond the bearing axis 3a by a lever arm 3b. One end of an actuating element 5b of a drive device, designated overall by 5, is connected to the lever arm 3b via a joint 3c.

Das Stellelement 5b besteht aus einer Schubstange 5d undThe actuating element 5b consists of a push rod 5d and

18 749a18 749a

« ·« · •• »♦»♦ •• • »» •• .2002.2002 • ·· •• •• ''T)V''T)V •&igr;?•&igr;? • ··
···· • ····

einer Gewindespindel 5g, die in eine von der Schubstange 5d drehfest gehaltene Spindelmutter 5f eingreift. Die Spindel 5g des Stellelements 5b wird von einem Elektromotor 5a über ein Winkelgetriebe 5c angetrieben. Die gesamte Antriebsvorrichtung 5 ist über einen Lagerzapfen 5e schwenkbar am Sitzteilrahmen 1 befestigt.a threaded spindle 5g, which engages in a spindle nut 5f held in a rotationally fixed manner by the push rod 5d. The spindle 5g of the actuating element 5b is driven by an electric motor 5a via an angle gear 5c. The entire drive device 5 is pivotally attached to the seat part frame 1 via a bearing pin 5e.

Die Zugfedern 4a sind unter dem Querholm 6 hindurch und um ihn herum zu den Hakenbereichen 6a geführt. Der rückwärtige Endbereich der Zugfedern 4a ist vertikal nach oben abgeknickt. Der Hakenbereich 6a befindet sich auf dem vom vorderen Querbereich la abgewandten rückwärtigen Bereich des Querholms 6.The tension springs 4a are guided under the cross member 6 and around it to the hook areas 6a. The rear end area of the tension springs 4a is bent vertically upwards. The hook area 6a is located on the rear area of the cross member 6 facing away from the front cross area la.

Wenn die Gewindespindel 5g gedreht wird, wandert die in der Schubstange 5d drehfest gehaltene Spindelmutter 5f entlang der Länge der Gewindespindel 5g. Hierdurch verändert sich der Abstand zwischen dem Lagerzapfen 5e und der Anlenkstel-Ie 3c mit der Folge, daß der Lenker 3 um die Lagerachse 3a verschwenkt wird.When the threaded spindle 5g is rotated, the spindle nut 5f, which is held in a rotationally fixed manner in the push rod 5d, moves along the length of the threaded spindle 5g. This changes the distance between the bearing pin 5e and the articulation point 3c, with the result that the handlebar 3 is pivoted about the bearing axis 3a.

Bei einer Vergrößerung des Abstandes zwischen dem Lagerzapfen 5e und der Anlenkstelle 3c verschwenkt der Lenker 3 im Uhrzeigersinn um die Lagerachse 3a. Mit der Schwenkbewegung des Lenkers 3 werden auch die über den Sitzrahmen 1 mit dem Lenker 3 verbundenen Lenker 2 zu einer gleichsinnigen Schwenkbewegung gezwungen. Der Sitzrahmen 1 wird bei einem Verschwenken des Lenkers 3 in Uhrzeigersinn in eine obere Sitzposition angehoben, in der er sich beispielsweise in Fig. 2 befindet. Beim Anheben des Sitzteilrahmens wird der fest mit den Lenkern 2 und 3 verbundene Querholm 6 in sei-When the distance between the bearing pin 5e and the articulation point 3c increases, the handlebar 3 pivots clockwise around the bearing axis 3a. The pivoting movement of the handlebar 3 also forces the handlebars 2 connected to the handlebar 3 via the seat frame 1 to pivot in the same direction. When the handlebar 3 pivots clockwise, the seat frame 1 is raised to an upper sitting position, in which it is located, for example, in Fig. 2. When the seat part frame is raised, the crossbar 6, which is firmly connected to the handlebars 2 and 3, is pushed in its

J J ··;J J ··;

18 749a " #&iacgr;" " 'V6. 12 . 200218 749a "#&iacgr;""'V6. 12 . 2002

nen seitlichen Aufnahmebohrungen Ic gedreht. Dabei schwenken die Hakenbereiche 6a von unten nach oben um die Drehachse 6b des Querholms 6.lateral mounting holes Ic. The hook areas 6a pivot from bottom to top around the rotation axis 6b of the cross member 6.

Bei dem geschilderten Anheben des Sitzteilrahmens wird der vertikale Bereich der Zugfedern 4a angehoben und mit ihm die gesamte ebene Befederung 4. Ein Anheben des Sitzteilrahmens 1 führt also zu einer gleichsinnigen Verstellbewegung der Befederung 4.When the seat frame is raised as described, the vertical area of the tension springs 4a is raised and with it the entire flat spring system 4. Raising the seat frame 1 therefore leads to an adjustment movement of the spring system 4 in the same direction.

Zum Absenken des Sitzteilrahmens 1 aus der in Fig. 2 dargestellten höheren Sitzposition in die in Fig. 3 dargestellte untere Sitzposition wird die Gewindespindel 5d in Gegenrichtung in die Spindelmutter 5f eingeschraubt. Dadurch verringert sich der Abstand der Anlenkstelle 3c vom Lagerzapfen 5e und die Lenker 2 und 3 werden im Gegenuhrzeigersinn in eine flacher geneigte Lage verschwenkt. Die dabei erzeugte Drehung des Querholms 6 im Gegenuhrzeigersinn führt zu einem Verschwenken der Hakenbereiche 6a nach unten mit der Folge, daß dadurch die Befederung 4 gegenüber dem Sitzteilrahmen 1 abgesenkt wird.To lower the seat frame 1 from the higher seating position shown in Fig. 2 to the lower seating position shown in Fig. 3, the threaded spindle 5d is screwed into the spindle nut 5f in the opposite direction. This reduces the distance between the articulation point 3c and the bearing pin 5e and the links 2 and 3 are pivoted anticlockwise into a flatter inclined position. The resulting anticlockwise rotation of the cross member 6 leads to the hook areas 6a pivoting downwards, with the result that the spring system 4 is lowered relative to the seat frame 1.

Ein Vergleich zwischen Figuren 2 und 3 zeigt, daß die Sitzbefederung 4 im Bereich unterhalb des drehbaren Querholms 6 in der Stellung gemäß Fig. 3 deutlich niedriger liegt als in der Stellung gemäß Fig. 2. Diese Höhendifferenz, die sich allein aus der Höhenverstellbarkeit der Befederung 4 gegenüber dem Sitzteilrahmen 1 ergibt, ist also der gegenüber einer Lösung mit starrer Befestigung der Befederung am Sitzteilrahmen 1 zusätzlich nach unten gewonnene Verstellweg. A comparison between Figures 2 and 3 shows that the seat springs 4 in the area below the rotating cross member 6 are significantly lower in the position according to Figure 3 than in the position according to Figure 2. This height difference, which results solely from the height adjustability of the springs 4 relative to the seat part frame 1, is therefore the additional downward adjustment path gained compared to a solution with rigid attachment of the springs to the seat part frame 1.

Claims (7)

1. Kraftfahrzeugsitz mit einem Sitzteilrahmen (1), an dem eine flächige Befederung (4) befestigt ist, wobei der Sitzteilrahmen (1) über neigungseinstellbare Lenker (2; 3) höhenverstellbar ist, die mittels einer deren Neigung verstellenden Antriebsvorrichtung verschwenkbar sind, wobei jeweils zwei an unterschiedlichen Seiten der flächigen Befederung (4) angeordnete, zueinander parallele Lenker (2; 3) über einen Querholm (6) starr miteinander verbunden sind, und die flächige Befederung (4) an der Rückseite des Sitzteilrahmens (1) über einen rückwärtigen Querholm mit dem Sitzteilrahmen (1) verbunden und diesem gegenüber höhenverstellbar angeordnet ist, wobei der hintere Querholm (6) drehbar in den Seitenwangen (1b) des Sitzteilrahmens (1) gelagert ist, und bei einem Verstellen der Höhenlage des Sitzteilrahmens (1) mittels der Lenker (2; 3) das am Querholm (6) befestigte Ende der flächigen Befederung (4) in gleichem Sinn anhebt, und die Lenker (2; 3) des hinteren Querholms (6) mittels einer zur Verstellung von deren Neigung ausgebildeten Antriebsvorrichtung verschwenkbar sind. 1. Motor vehicle seat with a seat part frame ( 1 ) to which a flat spring system ( 4 ) is attached, wherein the seat part frame ( 1 ) is height-adjustable via inclination-adjustable links ( 2 ; 3 ) which can be pivoted by means of a drive device which adjusts their inclination, wherein two links ( 2 ; 3 ) arranged on different sides of the flat spring system ( 4 ) and parallel to one another are rigidly connected to one another via a crossbar ( 6 ), and the flat spring system ( 4 ) on the rear side of the seat part frame ( 1 ) is connected to the seat part frame ( 1 ) via a rear crossbar and is arranged so as to be height-adjustable relative to the latter, wherein the rear crossbar ( 6 ) is rotatably mounted in the side cheeks ( 1 b) of the seat part frame ( 1 ), and when the height of the seat part frame ( 1 ) by means of the links ( 2 ; 3 ) the end of the flat spring system ( 4 ) attached to the cross member ( 6 ) is lifted in the same direction, and the links ( 2 ; 3 ) of the rear cross member ( 6 ) can be pivoted by means of a drive device designed to adjust their inclination. 2. Kraftfahrzeugsitz nach Anspruch 1, dadurch gekennzeichnet, daß die flächige Befederung (4) durch parallel zueinander verlaufende Zugfedern (4a) gebildet wird, deren vordere Enden an einem vorderen Querbereich des Sitzteilrahmens (1) und deren hintere Enden am hinteren Querholm (6) befestigt sind. 2. Motor vehicle seat according to claim 1, characterized in that the flat spring system ( 4 ) is formed by tension springs ( 4a ) running parallel to one another, the front ends of which are fastened to a front transverse region of the seat part frame ( 1 ) and the rear ends of which are fastened to the rear transverse member ( 6 ). 3. Kraftfahrzeugsitz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Querholm (6) an seinem Umfang angeordnete Hakenbereiche (6a) aufweist, in die die zugehörigen Enden der Zugfedern (4a) einhängbar sind. 3. Motor vehicle seat according to claim 1 or 2, characterized in that the cross member ( 6 ) has hook regions ( 6a ) arranged on its circumference, into which the associated ends of the tension springs ( 4a ) can be hooked. 4. Kraftfahrzeugsitz nach Anspruch 3, dadurch gekennzeichnet, daß die Zugfedern (4a) Formdrahtfedern sind, die die unterhalb des Querholms (6) sich erstreckende, flächige Befederung (4) bilden und im Bereich des rückwärtigen Querholms (6) diesen umgreifend aufwärts abgebogen sind. 4. Motor vehicle seat according to claim 3, characterized in that the tension springs ( 4a ) are shaped wire springs which form the flat springing ( 4 ) extending below the cross member ( 6 ) and are bent upwards in the region of the rear cross member ( 6 ) so as to encompass the latter. 5. Kraftfahrzeugsitz nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der rückwärtige Querholm (6) ein Rundrohr ist, das an seinen stirnseitigen Endbereichen mit jeweils einem Lenker (2; 3) verschweißt ist, wobei die stirnseitigen Enden drehbar in Aufnahmebohrungen (1c) der Seitenholme (1b) des Sitzteilrahmens (1) gelagert sind. 5. Motor vehicle seat according to one or more of claims 1 to 4, characterized in that the rear cross member ( 6 ) is a round tube which is welded at its front end regions to a respective link ( 2 ; 3 ), the front ends being rotatably mounted in receiving bores ( 1c ) of the side members ( 1b ) of the seat part frame ( 1 ). 6. Kraftfahrzeugsitz nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Antriebsvorrichtung (5) einen am Sitzteilrahmen (1) befestigten Elektromotor (5a) aufweist, der ein Stellelement (5b) antreibt, das an einem Lenker (3) angelenkt ist und dessen Anlenkende beim Betätigen des Elektromotors (5a) seinen Abstand von diesem verändert. 6. Motor vehicle seat according to one or more of claims 1 to 5, characterized in that the drive device ( 5 ) has an electric motor ( 5a ) fastened to the seat part frame ( 1 ), which drives an actuating element ( 5b ) which is articulated to a handlebar ( 3 ) and whose articulated end changes its distance from the electric motor ( 5a ) when it is actuated. 7. Kraftfahrzeugsitz nach Anspruch 6, dadurch gekennzeichnet, daß der Lenker (3) als zweiarmiger Hebel ausgebildet ist und das Anlenkende des Stellelements (5b) an dem über eine Lagerachse (3a) des Lenkers (3) hinausragenden Hebelarm (3b) befestigt ist. 7. Motor vehicle seat according to claim 6, characterized in that the handlebar ( 3 ) is designed as a two-armed lever and the articulating end of the adjusting element ( 5b ) is fastened to the lever arm ( 3b ) projecting beyond a bearing axis ( 3a ) of the handlebar ( 3 ).
DE29824882U 1998-10-23 1998-10-23 Height adjustable motor vehicle seat has flat spring arrangement attached to seat part frame, cross-piece rotated by drive to adjust inclination of linkages and hence seat height Expired - Lifetime DE29824882U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29824882U DE29824882U1 (en) 1998-10-23 1998-10-23 Height adjustable motor vehicle seat has flat spring arrangement attached to seat part frame, cross-piece rotated by drive to adjust inclination of linkages and hence seat height

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998148952 DE19848952A1 (en) 1998-10-23 1998-10-23 Height adjustable motor vehicle seat has flat spring arrangement attached to seat part frame, cross-piece rotated by drive to adjust inclination of linkages and hence seat height
DE29824882U DE29824882U1 (en) 1998-10-23 1998-10-23 Height adjustable motor vehicle seat has flat spring arrangement attached to seat part frame, cross-piece rotated by drive to adjust inclination of linkages and hence seat height

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DE29824882U1 true DE29824882U1 (en) 2003-03-06

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2942431A1 (en) * 2009-02-20 2010-08-27 Faurecia Sieges Automobile VEHICLE SEAT, METHOD OF MANUFACTURING SUCH A VEHICLE SEAT AND MACHINE FOR CARRYING OUT THE MANUFACTURING METHOD.
GB2509549A (en) * 2013-01-08 2014-07-09 Jaguar Land Rover Ltd Seat adjustment apparatus comprising a four bar link
EP1972231A4 (en) * 2006-01-10 2017-01-25 Delta Tooling Co., Ltd. Seat structure
CN108790964A (en) * 2017-04-27 2018-11-13 长城汽车股份有限公司 Automatic seat regulating mechanism and vehicle
IT201700057464A1 (en) * 2017-05-26 2018-11-26 Sparco S P A ADJUSTMENT DEVICE IN HEIGHT FOR CAR SEATS
CN112744132A (en) * 2019-10-29 2021-05-04 格拉默公司 Device for adjusting the position of a seat
CN112744130A (en) * 2019-10-29 2021-05-04 格拉默公司 Device for adjusting the position of a seat
EP4088967A1 (en) * 2021-05-13 2022-11-16 McLaren Automotive Limited Seat adjustment mechanism
US11679697B2 (en) 2019-10-29 2023-06-20 Grammer Ag Device for adjusting a seat position

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1972231A4 (en) * 2006-01-10 2017-01-25 Delta Tooling Co., Ltd. Seat structure
FR2942431A1 (en) * 2009-02-20 2010-08-27 Faurecia Sieges Automobile VEHICLE SEAT, METHOD OF MANUFACTURING SUCH A VEHICLE SEAT AND MACHINE FOR CARRYING OUT THE MANUFACTURING METHOD.
US8322675B2 (en) 2009-02-20 2012-12-04 Faurecia Sièges d'Automobile Vehicle seat, manufacturing process for such a vehicle seat, and machine for implementing the manufacturing process
GB2509549A (en) * 2013-01-08 2014-07-09 Jaguar Land Rover Ltd Seat adjustment apparatus comprising a four bar link
GB2509549B (en) * 2013-01-08 2015-09-16 Jaguar Land Rover Ltd Vehicle seat chassis
CN108790964A (en) * 2017-04-27 2018-11-13 长城汽车股份有限公司 Automatic seat regulating mechanism and vehicle
IT201700057464A1 (en) * 2017-05-26 2018-11-26 Sparco S P A ADJUSTMENT DEVICE IN HEIGHT FOR CAR SEATS
CN112744130A (en) * 2019-10-29 2021-05-04 格拉默公司 Device for adjusting the position of a seat
CN112744132A (en) * 2019-10-29 2021-05-04 格拉默公司 Device for adjusting the position of a seat
EP3815961A1 (en) * 2019-10-29 2021-05-05 Grammer Ag Device for adjusting a sitting position
US11433789B2 (en) 2019-10-29 2022-09-06 Grammer Ag Device for adjusting a seat position
CN112744130B (en) * 2019-10-29 2023-02-24 格拉默公司 Device for adjusting the position of a seat
US11654799B2 (en) 2019-10-29 2023-05-23 Grammer Ag Apparatus for adjusting a seat position
US11679697B2 (en) 2019-10-29 2023-06-20 Grammer Ag Device for adjusting a seat position
EP4088967A1 (en) * 2021-05-13 2022-11-16 McLaren Automotive Limited Seat adjustment mechanism
US12071049B2 (en) 2021-05-13 2024-08-27 Mcclaren Automotive Limited Seat adjustment mechanism

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