Brose Fahrzeugteile Gmbh & Co Kg, Coburg

Brose Fahrzeugteile Gmbh & Co Kommanditgesellschaft, Coburg

Wera Wolniczak

Guido Neumann

Florian Schmieder

Sebastian Eichhorn

Sebastian Schweizer

Cornelia Brueckner

It is provided an adjusting device for a seat element of a vehicle seat supporting a body part of a seat user, with at least one driving device comprising a spindle drive and at least one adjustable support element for changing the contour or position of the seat element, wherein the spindle drive comprises a spindle extending along a spindle axis, which is floatingly mounted at a spindle end via a spindle holder such that at this spindle end the spindle is displaceable along at least one spatial direction extending transversely to the spindle axis. The spindle holder comprises a first and a second compensating element for a displaceability of the spindle end with respect to two first and second spatial directions extending approximately perpendicularly to each other and each perpendicularly to the spindle axis.

Adjusting device having a spindle drive for a seat element of a vehicle seat

It is provided an adjusting device of a lumbar support or a side-bolster adjuster for changing the contour or position of a seat element of a vehicle seat supporting a body part of a seat user, with at least one driving device comprising a spindle drive and at least one adjustable support element for changing the contour or position of the seat element, wherein the spindle drive comprises a spindle extending along a spindle axis, which on a fastening part of the lumbar support or the side-bolster adjuster mounted in the vehicle seat is floatingly mounted at a spindle end via a spindle holder such that at this spindle end the spindle is displaceable along at least one spatial direction extending transversely to the spindle axis.

Adjusting device of a lumbar support or of a side-bolster adjuster having a spindle drive for a seat element of a vehicle seat

A backrest structure for a motor vehicle seat includes a rest frame forming the supporting structure of the backrest. The rest frame includes at least two longitudinal struts running in the longitudinal direction of the backrest. The backrest structure also includes a lumbar support arranged on the front side of the rest frame for supporting the back region of a motor vehicle occupant. The lumbar support includes a transverse traverse being adjustable along the longitudinal struts with a height adjusting device, to which a support device is hinged and is adjustable with a depth adjusting device substantially perpendicular to the transverse traverse. The lumbar support further includes a retaining device supporting the transverse traverse and extending substantially in the longitudinal direction of the backrest and receiving the height adjusting device.

Backrest structure for a motor vehicle seat

A spindle drive for a lumbar support in a backrest structure of a motor vehicle seat includes two gliders guided on a carrier of the lumbar support. Each glider is connected to a spindle nut which is engaged with an associated thread section of a spindle. The thread sections have threads of opposite thread pitch, so that the gliders are movable in opposite directions and pivot towards and away from the carrier supporting bails of a supporting device hinged to the carrier and being adjustable substantially perpendicular to the carrier. At least one of the spindle nuts partly encompasses the spindle and can be clipped onto its associated thread section of the spindle.

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