Grammer Ag

Grammer Sitzsysteme Gmbh

Johann Meier

Thomas Haller

Josef Dotzler

Florian Schanderl

Hubert Wittmann

Nikolaus Haller

Rudolf Kastner

Johann Grassl

Johannes Fillep

Thomas Burger

Franz Schneider

Daniel Klieber

Marco Hofmann

Paul Haril

Rupert Bauer

Werner Fick

Haller Thomas

Vehicle seat comprising a vehicle seat upper part and a vehicle seat lower part, the vehicle seat upper part being movable relative to the vehicle seat lower part, and the vehicle seat upper part being able to be sprung and damped, relative to the vehicle seat lower part, by a suspension and damping element, the suspension and damping element comprising a reversibly deformable plastics element and an adjusting element, the plastics element and the adjusting element being in operative contact, and the spring characteristics of the suspension and damping element being able to be adjusted depending on the position of the adjusting element relative to the plastics element.

Sprung vehicle seat

Armrest device, in particular for commercial vehicle seats, having a guide rail system for guiding a displacement movement of a first rail relative to a second rail which can be connected to the armrest device, in a displacement direction, wherein the displacement movement of the first rail can be arrested by the engagement of a locking element of a locking device in at least one recess in the first rail, wherein the locking device is rigidly connected to the armrest device by a first end and can be deflected in a height direction by a second end, the locking element engaging in the recess in a non-deflected position of the locking device.

Armrest device

The invention relates to a foldable vehicle seat, in particular for utility vehicles, with a backrest and a seat part, wherein the backrest is made foldable and is connected at least to a first cam element and the seat part is made foldable and is connected at least to a second cam element, wherein the two cam elements are arranged at a distance from each other in the width-wise direction of the seat and are arranged so as to be rotatable about a common axle extending in the width-wise direction of the seat, so that the backrest and the seat part are rotatable by at least 90&#xb0;.

Foldable vehicle seat

The invention relates to a seat suspension device for a vehicle seat, in particular a commercial vehicle seat, comprising at least one air spring, said air spring being disposed between an upper seat portion of the vehicle seat and a lower seat portion of the vehicle seat, and at least one hose-like member connected to the air spring via a first connection line for an extension volume of the air spring is provided, said hose-like member being arranged along at least one fold of a bellows-like facing extending between an upper seat portion and a lower seat portion of a vehicle seat.

Seat suspension device for a vehicle seat

The invention relates to a vehicle seat comprising at least one gas spring () which damps vibration and adjusts the seat height, said gas spring being arranged between a seat frame () and a base frame (), and comprising a valve arrangement () for adjusting the pressure in the gas spring () and a compressor () assigned to the vehicle seat (), said compressor having a drive motor for feeding compressed gas to the gas spring (), wherein a belt roller device comprising a belt () rolled around an axle () is arranged between the seat frame () and the base frame (), the first end () of said belt being attached to a belt roller mechanism () arranged on the seat frame () and the second end () of said belt being attached to the base frame (), and a detector () which detects a belt rolling movement is attached to the seat frame (). Use is made of an electronic control unit () for evaluating belt rolling movement signals detected within a predefined time period () for determining a seat height profile within the time period () and for controlling the valve arrangement () and/or the compressor () such that automatic, time-delayed seat height re-adjustment takes place if the seat height profile () determined for the time period () lies out of a position of symmetry in relation to a predefinable mean seat height (). Also disclosed is a method for carrying out such automatic seat height adjustment.

Vehicle seat with automatic height adjustment and method therefore

Vehicle seat

A guide rail arrangement for a vehicle seat has first and second rail members. The first and second rail members are of configurations which engage one into the other to hold the rail members slidably together and they have first and second contact portions, along which the rail members bear linearly against each other for mutual play-free guidance thereof.

Guide rail arrangement for a vehicle seat

A vehicle seat which is adjustable in height and which affords automatic adjustment to the seat occupant weight comprises a gas spring between a seat frame and a base frame, a valve arrangement actuable by an actuating element to adjust the pressure in the gas spring in dependence on the weight of the seat occupant, and a means for setting the desired seat height. Disposed between the seat and base frames is a belt reel device with a coupling means, which like the gas spring, can be subjected to the action of pressure gas from a pressure source. The pressure source comprises a compressor driven by a drive motor, which are disposed on the vehicle seat. The valve arrangement includes a 2/2-way valve which serves only for the release of pressure gas from the gas spring, and a 3/2-way valve between the pressure source and the coupling means of the belt reel device. The valve arrangement may be mechanical/pneumatic in operation or may be controlled by an electronic control arrangement.

Vehicle seat which is adjustable in height and with automatic weight

A springing arrangement comprises a coil spring and a spring-engaging member acting thereon between the two ends of the spring and in a direction which differs from the longitudinal direction of the spring, thereby to provide non-linear dependency of the spring force on the distance covered by the spring-engaging member. The spring-engaging member is made up of two elements on respective sides of the spring, each element bearing against the spring by way of a curved surface and extending over a plurality of turns of the coil spring.

Growing community of inventors

Fensterbach, Germany

Johann Meier