Abstract: A fixing device for fixing a second component part at a stationary first component part to be swivelable around a swiveling axis 2 having a cylinder that is displaceable transverse to the swiveling axis and filled with a fluid, a piston displaceably guided in the cylinder that divides the interior of the cylinder into a first working chamber and a second working chamber, with a first valve device that connects the first working chamber to the second working chamber when pressure in the first working chamber is higher than the pressure in the second working chamber, and a second valve device that connects the second working chamber to the first working chamber when pressure in the second working chamber is higher than the pressure in the first working chamber.

Abstract: A piston-cylinder unit having a cylinder, the interior of the cylinder being divided into two working chambers by a displaceable piston, a piston rod being arranged at the piston and guided outward in a sealed manner through one of the working chambers. A first connection end is arranged at the end of the cylinder opposite the piston rod and a second connection end is arranged at the free end of the piston rod. The cylinder is enclosed by a first housing which is fastened by its one end region to the first connection end.

Abstract: An adjusting system for adjusting a component of a motor vehicle on an adjustment path between a basic position and an end position with a mobile communications device through which control commands can be sent wirelessly to a control unit arranged in the motor vehicle and through which a drive for the adjustment of the adjustable component can be actuated. A target position selected from a plurality of target positions on the adjustment path of the adjustable component can be entered in the mobile communications device, and thereupon a corresponding actuating signal can be sent to the control unit wirelessly through the mobile communications device. The drive for adjusting the adjustable component to the selected target position can be actuated by the control unit.

Abstract: A damping unit includes a cylinder which is filled with a damping fluid and in which a piston rod is guided, the piston rod associated with a bottom surface which has at least one axial through-hole which defines an effective flow cross section for the damping fluid; wherein the piston rod includes: a sleeve element which is fixed on the piston rod in the axial direction; a piston bottom element which is supported on the piston rod so as to be axially slidable and includes the bottom surface; a resilient element; and a termination element which is fixed on the piston rod in the axial direction and forms an indirect or direct stop for the piston bottom element in the insertion direction of the piston rod.

Abstract: The present invention relates to a screw arrangement (10), comprising: a drive unit (16) for introducing a torque into the screw arrangement, a drive element (24) driven in rotation about a main axis (A) of the screw arrangement by the drive unit (16) and having an external thread (30), and a driven element (12) having an internal thread (32), which is in threaded engagement with the drive element (24). The invention further relates to a seat arrangement.

Abstract: An office chair including a base, a seat, a chair column that extends in the vertical direction between the base and the seat, and a backrest, further comprising an electric drive unit that comprises an electric motor and a change gear, the change gear being designed to input the rotational force of the electric motor into a first adjustment device for adjusting a seat height of the seat and converting said force in a second adjustment device for adjusting a tilt of the seat or the backrest.

Abstract: A retention clip having a body with a first end and a second end opposite the first end; a mounting hole defined in the first end of the body; and a U-shaped retaining slot formed by a leg arranged at the second end of the body and a portion of the body between the mounting hole and the U-shaped slot. The leg arranged at the second end of the body extends substantially perpendicular to a longitudinal axis of the body.

Abstract: A lockable piston-cylinder unit having a cylinder that is closed at both ends and filled with pressurized fluid and in which a piston that is sealed relative to the inner wall of the cylinder is displaceably guided. The piston divides the interior of the cylinder into a first working chamber and a second working chamber. A piston rod is arranged at the piston and is guided out of the cylinder 1 through one of the working chambers and through a guiding and sealing unit which closes the one end of the cylinder.

Abstract: A drive device, comprising a first housing part and a second housing part which can be displaced with respect thereto, and comprising a motor assembly, which comprises a rotor, two mounting elements and two permanent magnet shells, and if desired comprising a transmission assembly and/or a sensor unit associated with the motor transmission.

Abstract: The invention relates to a movement-damping unit (30) comprising a receiving tube (32) having a longitudinal axis (A), a relative movement unit (34) which is received in the receiving tube (32) and which is displaceable back and forth relative to the receiving tube (32) substantially in the direction of the longitudinal axis (A), and a friction device (41) acting between the receiving tube (32) and the relative movement unit (34). According to the invention, the friction device (41) comprises at least one switching element (44, 48) assigned to the relative movement unit (34) and having an engagement portion (48a) formed so as to widen radially in the direction of the longitudinal axis (A), wherein at least one resiliently compressible friction element (46, 50), which comprises a recess (50a) intended for engagement with the engagement portion (48a) and is arranged on the longitudinal face of smaller diameter of the switching element (44, 48), is assigned to each switching element (44, 48).

Abstract: A drive device includes a drive device housing with a longitudinal axis, at least one gearing assembly received in the drive device housing, with a gearing housing, which is received in the drive device housing so as to be rotatable about the longitudinal axis thereof, an engagement element received in the drive device housing and connected thereto for rotation therewith with respect to a rotation about the longitudinal axis thereof when torque is transmitted through the engagement element, the engagement element including an end face running substantially orthogonally to the longitudinal axis, which end face is in frictional and, if desired, additionally interlocking engagement with an associated counter end face of the gearing assembly or one of the plurality of gearing assemblies, and a spring, which is received in the drive device housing and prestresses the end face and the counter end face against one another.

Abstract: A system for opening and closing a motor vehicle, the flap is swivalably mounted along one of its edge areas at a stationary structural component part about a horizontal swiveling axis. A first drive device and a second drive device act in parallel to more like flap from a closed position into an open position. The first drive device is a non-self-locking drive device, and the second drive device comprises a cylinder filled with a fluid under pressure. An interior of the second drive device is divided by a piston into a first work chamber and a second work chamber, wherein a piston rod of the piston is guided outward through the first work chamber. A valve arrangement in the piston closes a flow connection between the first work chamber and the second work chamber in a stationary operating state of the flap.

Abstract: A length-adjustable unit includes a tubular outer component, an inner component displaceably guided in the outer component, issues from the outer component and arranged outside of the outer component has a connecting element, and an additional connecting element arranged at the assembly end, opposing the exit end, of the outer component. The additional connecting element, or an intermediate element rigidly connected to the assembly end of the outer component, has at least one annular shoulder extending in the circumferential direction of the outer component over the full 360°, while at least one engaging element is associated with the intermediate element, which is rigidly connected to the assembly end of the outer component, or the additional connecting element, and this engaging element is engaged with the annular shoulder to be slidingly displaceable in the circumferential direction but positively engaged in a longitudinal direction.

Abstract: A modular system of driving devices that each includes a rotary drive assembly and a spindle drive assembly. The modular system includes at least two rotary drive assemblies and at least two spindle drive assemblies which are formed with coupling elements which are compatible with one another. The rotary drive of the driving device is received in a housing tube which is closed at its end remote from the spindle drive by a base piece. The base piece and the housing tube are manufactured from plastics material and are connected to one another by cohesive bonding.

Abstract: A piston-cylinder unit includes: a cylindrical pressure tube having a first end side defining an end side opening; a piston, axially displaceable in the pressure tube, the piston having a piston rod, the piston rod being guided out of the pressure tube at the first end side through the end side opening; a piston rod guide and a piston rod seal, arranged inside the pressure tube, which cooperate together to sealingly guide the piston rod at the end side opening; and a cup-like protective cap surrounding an end region of the cylindrical pressure tube from the first end side, the protective cap having a base at its end, the base having a coaxial through-orifice having an inner wall through which the piston rod extends in a displaceable manner. The inner wall of the through-orifice tightly surrounds the piston rod.

Abstract: A piston-cylinder unit with a center longitudinal axis, a first end, a cylinder filled with a fluid, a piston arranged so as to be displaceable in the cylinder and which divides the cylinder into a first work space remote of the first end and a second work space close to the first end. A piston rod is arranged at the piston and projects through the first work space and is guided out of the cylinder concentric to the center longitudinal axis at a second end opposite the first end so as to be sealed by a guiding and sealing device, and a sensor device for direct or indirect detection of the internal pressure of the piston-cylinder unit.

Abstract: A lockable gas spring arrangement includes a gas spring with a closed cylinder, a displaceably guided piston and piston rod. A fastening tube fastened with its one end in the region of the free end of the piston rod and on which a locking element is arranged. The locking element is able to be moved substantially radially to the piston rod between an unlocked position permitting a free insertion movement and a locked position bearing against the front face of the cylinder on the piston rod side when the piston rod is extended. The locking element is able to be urged by a spring into its locked position. The locking element is able to be moved manually from its locked position into its unlocked position and is able to be retained automatically in its unlocked position by a retaining device.

Abstract: A joining element for connecting a first component to a second component, wherein the joining element includes a connection member for the pivotable mounting of the first component, and part of the connection member is receivable in at least one aperture of the second component in a predetermined orientation. A fixing mechanism is provided for directly fixing the connection member to the second component when the part of the connection member received in the aperture.

Abstract: A piston rod is connected to a piston and extends through a seal in the end face of a cylinder. A locking tube which surrounds the cylinder when the piston rod is retracted has a first end section mounted to the free end of the piston rod so that the locking tube is pivotable between a release position, wherein the locking tube is substantially coaxial to the piston rod, and a locking position, wherein the locking tube is inclined toward the piston rod. An opposed second end section has a supporting stop which can be positioned axially against the free end of the cylinder when the piston rod is extended and the locking tube is in the locking position. An actuable retaining device retains the locking tube in the locking position only by manually pivoting the locking tube into the locking position when the piston rod is extended.

Abstract: An adjusting drive for adjusting a first structural component part relative to a second structural component part has a linear drive and a piston-cylinder unit connected in parallel with the linear drive for drive purposes. A control is provided for controlling the adjusting speed of the adjusting drive depending upon the adjusting path.