Grammer Ag

Grammar Ag

Erwin Haller

Jens Kolb

Konstantin Krivenkov

Roland Uebelacker

Konstantin Lorey

Gerhard Delling

Florian Dotzler

Katja Buehlmeyer

Hermann Meiller

Ralph Nuss

Rainer Bruns

Christian Erker

Joachim Pelka

Thomas Burger

Stephan Ulrich

Thomas Meyer

Roland ÜBelacker

Christoph Wurmthaler

Michael Landshammer

Alexander Kuehnlein

Christian Haid

Peter Kirchner

Gerhard Gebert

Norbert Augsberger

Steffan Hermann

Peter Eidenhammer

Nikolas Haller

Katja Buhlmeyer

Konstantin Krivenkov Dr

Andreas Irrgang

Katja Bühlmeyer

Prof Christoph Wurmthaler

The invention relates to a height-adjustable control lever carrier for a commercial vehicle seat, which carrier is at least partially arranged to the side of a seat part, wherein the control lever carrier is provided for receiving at least one control lever for controlling vehicle equipment and at least one armrest, and is characterised in that the control lever carrier comprises a multi-joint mechanism construction, by means of which the control lever carrier is adjustable both in a seat height direction and in a seat longitudinal direction relative to the seat part.

Height-adjustable control lever carrier for a commerical vehicle seat

A device for level regulation and level stabilization of a vehicle seat upper part. The device includes an air spring that spring loads a movement of the vehicle seat lower part and of the vehicle seat upper part relative to one another, the vehicle seat lower part and the vehicle seat upper part are arranged in a non-deflected state at a predeterminable distance from one another. The air spring is fluidically connected to a working volume of an additional volume module. A control unit decreases the volume of the working volume in the event of an increase in the distance and increases the volume of the working volume in the event of a decrease in the distance such that the pressure in the air spring can be changed such that the distance between the vehicle seat upper part and a reference surface is substantially unchanged.

Vehicle seat having a device for level regulation and level stabilization

The invention relates to a device for adjusting a seat position for a vehicle seat, which comprises at least one support element for a seat part and can be connected to a seat substructure, the device comprising at least one first leg and at least one second leg, the legs being rotatably arrangeable on the seat substructure and the at least one support element, the at least one first leg and the at least one second leg being mechanically coupled by a connecting element, the length of which can be modified, wherein a modification of the length of the connecting element causes a change in an angle of inclination &#x3b8; of the support element.

Device for adjusting a seat position

The invention relates to a vehicle seat having a backrest which comprises a backrest part and a backrest base element, the backrest part comprising a middle backrest element which is arranged pivotably on the backrest base element, wherein the backrest part comprises two lower backrest side elements and two upper backrest side elements, which are each mechanically coupled to the middle backrest element, wherein the two lower backrest side elements are arranged pivotably on the backrest base element, wherein at least one joint device is provided in each case between a lower backrest side element and an upper backrest side element, wherein a lower backrest side element and an upper backrest side element are each arranged at an angle &#x3b1;, &#x3b1;to one another, wherein pivoting of the middle backrest element causes a change in the angle &#x3b1;, &#x3b1;.

Vehicle seat having a backrest

The invention relates to a vehicle seat having a backrest which comprises a backrest part and a backrest base element, the backrest part comprising a middle backrest element which is arranged pivotably on the backrest base element, wherein the backrest part comprises two lower backrest side elements and two upper backrest side elements, which are each mechanically coupled to the middle backrest element, wherein the two lower backrest side elements are arranged pivotably on the backrest base element, wherein at least one joint device is provided in each case between a lower backrest side element and an upper backrest side element, wherein a lower backrest side element and an upper backrest side element are each arranged at an angle &#x3b1;, &#x3b1;to one another, wherein pivoting of the middle backrest element causes a change in the angle &#x3b1;, &#x3b1;, wherein the joint device comprises at least one first elastic element.

The invention relates to an apparatus for adjusting a seat position for a vehicle seat, which comprises at least one support element for a seat part and can be connected to a seat substructure, wherein the apparatus comprises at least one first limb and at least one second limb, wherein the limbs can be rotatably arranged on the seat substructure and the at least one support element, wherein a first angle &#x3b1; between the first limb and the support element can be adjusted by an angle adjustment device, wherein the at least one first limb and the at least one second limb each have a lever portion, and these are mechanically coupled, and wherein a change in the angle &#x3b1; causes a displacement of the at least one support element along a height axis Z, and a change in an angle of inclination &#x3b8; of the support element.

Apparatus for adjusting a seat position

The invention relates to a steering device for vehicles, in particular forklifts, for carrying out a steering movement of the drivable vehicle on a surface by manual operation by a vehicle driver, wherein the steering device is attached to or in an armrest of a vehicle seat, wherein the steering device comprises at least one rotatable wheel element which can be at least partially grasped on the circumference by the fingers of a hand of the vehicle driver placed on the steering device and can be rotated about an axis of rotation for a steering movement.

Steering device for vehicles

Vehicle seat having a pitching spring unit, a vehicle seat upper part and a vehicle seat lower part of the vehicle seat being connected such that they can be moved relative to one another by means of a scissor frame arrangement, comprising a first scissor arm and a second scissor arm which cross in a first region as viewed in a vehicle seat width direction, the pitching spring unit comprising a spring element carrier and a spring element, the spring element being connected on one side to the vehicle seat upper part, the vehicle seat lower part or the scissor arms and on the other side to the spring element carrier which is connected to the first scissor arm such that it can be rotated about a second rotational axis and to the second scissor arm such that it can be rotated about a third rotational axis.

Vehicle seat having a pitching spring unit

Vehicle seat comprising a backrest, a seat part and a seat part upper portion connected to the seat part and displaceable relative to the seat part, the backrest being connected to the seat part in such a manner as to be rotatable about a first axis of rotation, characterised in that the backrest and the seat part upper portion are connected to one another in such a way that, when the backrest is rotated about the first axis of rotation, the seat part upper portion is displaced relative to the seat part.

Vehicle seat

The invention relates to a device for adjusting a seat position for a vehicle seat, wherein the device comprises at least one support element for a seat part and can be connected to a seat substructure, wherein the device comprises at least one first leg and at least one second leg, the legs being rotatably arranged on the seat substructure and the at least one support element, wherein a first angle &#x3b1; can be adjusted between the first leg and the support element by means of an angle adjustment device, wherein the at least one first leg and the at least one second leg are mechanically coupled, wherein a change of the angle &#x3b1; causes a displacement of the at least one support element along a height axis Z and along a longitudinal axis X.

The invention relates to a vehicle seat comprising a backrest element having a first contact surface which is arranged within a first imaginary plane, and a seat element having a second contact surface which is arranged within a second imaginary plane which is defined by a longitudinal axis and a width axis of the vehicle seat, wherein the first imaginary plane and the second imaginary plane intersect in an intersecting axis, wherein the backrest element is pivotable relative to the seat element about a rotational axis, wherein an inclination angle of the backrest element extends between the first imaginary plane and a central axis which runs perpendicularly to the second imaginary plane, wherein, in a first position of the backrest element, a distance along the longitudinal axis between the rotational axis and the intersecting axis is at least 60 mm, wherein, in the first position of the backrest element, the inclination angle is substantially 10&#xb0;.

Vehicle seat with inclining backrest feature

The invention relates to a vehicle seat with a lower part for arrangement on a body part of a commercial vehicle and an upper part for storing a seat part, wherein the vehicle seat has a longitudinal adjustment device, by means of which the upper part is displaceable relative to the lower part in the longitudinal direction and/or width direction of the vehicle seat, and a rotational adjustment device working independently of the longitudinal adjustment device, by means of which rotational adjustment device at least parts of the upper part are rotatable relative to the lower part about an axis in the height direction of the vehicle seat, wherein a virtual plane is provided, which is arranged intersectingly parallel to a longitudinal direction and a width direction of the vehicle seat as well as the longitudinal adjustment device and the rotational adjustment device, wherein the longitudinal adjustment device and the rotational adjustment device are designed to be electrically driven.

Vehicle seat with longitudinal adjustment device and with rotational adjustment device

Vehicle seat having a backrest part and a backrest base part, a seat part and a seat base part, wherein the seat part is displaceable with respect to the seat base part and wherein the backrest part is rotatably connected to the backrest base part, the backrest base part and the seat base part being connected to one another by means of a lever assembly, wherein the lever assembly has a first lever element which is rotatably connected to the backrest and the seat base part, and a second lever element, which comprises a first lever element part and a second lever element part, wherein the first lever element part is rotatably connected to the backrest base part and the second lever element part, and the second lever element part is rotatably connected to the first lever element part and an adjustment device, wherein the adjustment device is rotatably connected to the seat base part.

The invention relates to a vehicle seat with a lower part for arrangement on a body part of a commercial vehicle and an upper part for storing a seat part, wherein the vehicle seat has a rotational adjustment device, by means of which at least parts of the upper part are rotatable relative to the lower part about an axis in the height direction of the vehicle seat, wherein the rotational adjustment device comprises an electric motor for rotating a rotary plate unit which is rigidly connected to the upper part and is mounted so as to rotate relative to the lower part about the axis, wherein a driveshaft of the electric motor which mechanically interacts with the rotary plate unit is arranged parallel to the width direction of the vehicle seat, wherein, viewed in each case in the height direction of the vehicle seat, an extension of the electric motor and an extension of the rotary plate unit are arranged to be at least partially overlapping.

Vehicle seat with rotational adjustment device

A vehicle seat is provided with an upper part which is height-adjustably mounted with respect to a lower part by at least one scissor frame, where the scissor frame has a first scissor arm member and a second scissor arm member which are pivotally mounted about a common axis, where the first scissor arm member has a first, a second and a third lever member which are series-connected, where the first lever member is pivotally mounted with respect to the upper part about a third axis, where the third lever member is pivotally mounted with respect to the lower part about a fourth axis, and where the second lever member is pivotally mounted about the common axis and is rotationally connected to the first lever member by a fifth axis and rotationally connected to the third lever member by a sixth axis.

Growing community of inventors

Birgland, Germany

Erwin Haller