Abstract: A vehicle glazing unit includes a glazed element having an outer face, an edge face and an inner face, the glazing unit including, along at least a part of a bottom edge, a profiled bead including a groove for clip-fastening a covering piece on the profiled bead, the profiled bead including, as seen in cross section, an inner leg situated beneath the inner face of the glazed element, wherein the inner leg includes, at least in a bottom part of the profiled bead, at least one hole passing through the inner leg, the hole having a length of between 2.0 and 50.0 mm and a width of between 2.0 and 10.0 mm.

Abstract: A composite liftgate including an inner panel construction having strengthening channel structure in combination with a ribbing. Structural steel reinforcements are bonded to the inner panel where additional strength is needed. Where the extra structure is needed, a minimum amount of steel is used and the structural reinforcement is bonded in place using adhesive. A plurality of access doors are provided that are removable for easier maintenance and repair.

Abstract: A folding top for a cabriolet vehicle, and which includes a top linkage and a top cover. The top linkage may be adjusted for movement between a closed position and an open position via a roof kinematic system. The roof kinematic system is configured as a four-bar linkage kinematic system having a first link, a second link, and a drive member to drive the first link.

Abstract: A tonneau cover system includes a plurality of panels coupled to first and second side rails. The panels include a first panel, a second panel, a third panel, and a spacer bar with the spacer bar fixed to the side rails. The first panel pivots relative to the spacer while the spacer remains fixed to the side rails. The third panel pivots relative to the second panel to permit the third panel to be located over the second panel while the spacer remains fixed to the side rails to define an intermediate folded position. The cover further includes a hinge assembly mounted between the second panel and the spacer to enable the second and third panels to pivot relative to the spacer as a unit from the intermediate position to a final position located at least over the spacer bar while the spacer bar remains fixed to the side rails.

Abstract: A folding tonneau cover apparatus including a cover assembly and a support frame assembly. The cover assembly having a plurality of rigid panels interconnected in series by a series of flexible hinges preferably made from a laminated woven fabric material. The rigid panels are preferably stiffened by elongated support members secured to the undersides of the respective panels and the top surfaces of portions of the rigid panels are preferably downwardly concave. The cover assembly is secured to the support frame assembly to cover a cargo box of a pickup truck by a plurality of locking members when the support frame assembly is secured to sidewalls of the cargo box. Methods of making a tonneau cover apparatus and methods of folding and unfolding the cover assembly are also disclosed.

Abstract: A convertible top having a top cover and a cover linkage adjustable between a closed position and a storage position and which has a linkage arrangement on each of its two sides linkage arrangement pivotably mounted on a respective main bearing, which is fixed to the vehicle, via a main multi-joint arrangement comprising two main links, a rear bow realized as a panel bow mounted on each of the bilaterally arranged linkage arrangements via a rear link arrangement. The two bilaterally arranged rear link arrangements can each be actuated by a drive lever, which drives the respective rear link arrangement starting from the closed position in a first opening phase while the main multi-joint arrangement is static and drives the respective rear link arrangement in the opposite direction of the respective main multi-joint arrangement in a second opening phase.

Abstract: A ball-balancing drive assembly includes a ball having a ball surface and a reference axis extending through a centroid of the ball. Three omniwheel assemblies, each having a motor with a motor axle and an omniwheel configured to rotate around the motor axle are mounted on a chassis configured for supporting the three omniwheel assemblies at radially symmetric spacings with the motor axles oriented at an angle relative to the reference axis and the omniwheels oriented in mutually-orthogonal planes. Each omniwheel frictionally contacts the ball surface to convert rotational motion of the motor axle to torque on the ball.

Abstract: A case structure of a power equipment unit, which accommodates a power equipment mounted in a vehicle and is disposed in a power equipment unit accommodating part provided on a floor panel, includes: a case body having an upper portion opened to accommodate the power equipment; a lid member which covers the upper portion of the case body; and a cover member which is attached to the lid member and covers at least an opening part formed in the lid member. The cover member has an intake port which takes in air from outside, and a levee wall is provided in front of the intake port.

Abstract: A hybrid vehicle includes a transmission unit and a clutch. The transmission unit is configured to be able to switch into a neutral state. The hybrid vehicle is able to transmit power of an engine through any one of a first path through which power is transmitted to a first MG from the engine via the transmission unit and a differential unit and another second path through which power is transmitted from the engine. The clutch is provided in the second path. The clutch switches between an engaged state where power is transmitted and a released state where transmission of power is interrupted. The controller sets the transmission unit to the neutral state and sets the clutch to the engaged state, and then starts the engine by increasing the rotation speed of the engine with the use of the first MG.

Abstract: In a vehicle, a first rotating electrical machine, is connected to first wheels via a clutch, and second rotating electrical machines are connected to second wheels or the first wheels without going through the clutch. A power control device allocates electric power to the second rotating electrical machines with higher priority over the first rotating electrical machine when adding additional power to power of an internal combustion engine, thereby generating power of the second rotating electrical machines with higher priority over power of the first rotating electrical machine.

Abstract: A planetary multi-stage transmission for a vehicle is provided. A drive (An) is connectable by a zeroth shift element (K0) to a first shaft (1). A first element of a first planetary gear set (RS1) is connected to a housing (9). A first shaft (1) is permanently connected to a second element of the first planetary gear set (RS1). A rotor (10) of an electric motor (EM) is connected to a third element of the first planetary gear set (RS1), and the third element of the first planetary gear set (RS1) is connectable by one or more of a plurality of additional shift elements to at least one element of one or more of a second and third planetary gear sets (RS2, RS3).

Abstract: An engaging device for a wheel is provided. The engaging device includes a wheel hub and a transmitting member. The wheel hub is located in the center of a wheel. The wheel hub has a plurality of engaging holes. The transmitting member has a plurality of grooves, wherein an elastic member is provided in each of the grooves. One end of the elastic member is connected to the groove, and the other end of the elastic member is connected to an engaging member. The shapes of the engaging members and the engaging holes correspond to each other, so that the engaging members fit into the engaging holes.

Abstract: A motor vehicle undertray trim panel having an air inlet which is delimited toward the vehicle and the roadway by upper and lower flat elements, respectively, which extend arcuately rearward and upward in the direction of a vehicle components. The upper flat element runs, starting from a front end which lies in the vehicle longitudinal direction, in front of, adjacent to or behind an internal combustion engine of the motor vehicle and below a front radiator, first of all approximately horizontally and at a spacing below an oil sump of the internal combustion engine and then in a continuously steeper curve to its rear end which lies behind the oil sump and which is adjoined by a planar air ram plate which runs such that it is directed by a small amount substantially vertically upward, and then ends substantially freely in the engine compartment.

Abstract: The present invention provides a shutter device for a vehicle in which a manufacturing cost is reduced. Provided is a shutter device (1) for a vehicle, which has: a frame member (10) that has an opening provided therein and is mounted on the vehicle; a fin (20) that extends in a first direction; and a rotary shaft unit (40) that pivotably supports the fin (20) on the frame member to be pivotable in the opening of the frame (10). The fin (20) is provided integrally with or independently from the rotary shaft unit (40), and the fin (20) has a uniform sectional shape in the first direction.

Abstract: A fuel drip retention system includes a computer programmed to actuate one of a pump or a starter motor to generate a vacuum in an evaporation line between a fuel nozzle receiving port and a vapor canister. The vacuum is generated upon determining that fuel has stopped flowing into a fuel tank.

Abstract: The present disclosure discloses an agitator truck, and the agitator truck includes a frame; a first axle assembly; a second axle assembly, where the second axle assembly and the first axle assembly are disposed along a front-rear direction in a spaced manner, the second axle assembly includes two vehicle axle assemblies that are disposed along the front-rear direction in a spaced manner, each of the vehicle axle assemblies includes an axle case assembly, the axle case assembly includes an axle case component and two half axles, and the two half axles are located inside the axle case component; at least one of the two vehicle axle assemblies is an electric drive axle assembly, the electric drive axle assembly further includes an electric power assembly, the electric power assembly includes a power motor, a transmission, and a differential, the transmission has a transmission case, the power motor is fixed to the transmission case, the differential is supported on the transmission case, the differential is loc

Abstract: A safety and emergency-assistance system (1) for vehicles, constituted by at least one bracelet (E), a means for radio/telecommunication of the alarm signal (R1), a black box (BB), a plurality of sensors (S1, S2, S3, S4), and means (X) for remote automatic driving and management of the vehicle (A). In the case of emergency, with the driver/passenger present (A) and unwell while the vehicle is stationary with the engine off and without the key inserted into the ignition, or with the key inserted and the instrument panel off. The system (1) also enables automatic and autonomous activation of the devices present on board the vehicle, e.g. airbags, power window, and air-conditioning system.

Abstract: An on-vehicle structure includes a housing of a motor and a power control unit. The power control unit is fixed by a front bracket and a rear bracket above the housing. A space is defined between a lower surface of the power control unit and the housing. The front bracket includes a base section and a support section. The support section is configured to contact with the housing before the lower surface of the power control unit contacts with an upper surface of the housing when the support section is collapsed rearward by a load applied to the power control unit from front.

Abstract: The invention relates to a method for operating a battery system (1) comprising a plurality of battery cells (8) and a battery management system for monitoring and controlling the battery cells (8), wherein the battery management system has a main controller (2) and a first measurement chain (34) and a second measurement chain (36) with in each case a plurality of measurement chips (40, 42) which are designed to redundantly detect measurement data from the battery cells (8) and in each case to carry out diagnoses and state of charge compensation of the battery cells (8).

Abstract: The invention relates to a safety device (4) for a contactor (2) connected between a secondary battery and an electrical power network, in particular of a motor vehicle that can be driven electrically, comprising at least one electronic evaluating unit (6), which can be connected to at least one electrical component of the secondary battery by means of a communication connection (5), and at least one safety switch (8), which can be controlled by means of the electronic evaluating unit (6) and which can be arranged in an electrical control circuit (7) of the contactor (2), wherein the electronic evaluating unit (6) is designed to receive at least one component-specific piece of actual information (12) from the electrical component via the communication connection (5), to compare the received piece of actual information (12) with at least one piece of target information stored in the electronic evaluating unit (6), and to control the safety switch (8) in dependence on a result of the comparison in such a way th

Abstract: A vehicle control device includes: a slip determination module that determines a slip of each of wheels; a base distribution calculation module that calculates a base distribution torque to be distributed to the front and rear wheels on the basis of requested torques and a base distribution ratio of torques between the front and rear wheels, and changes the base distribution ratio on the basis of a result of slip determination performed by the slip determination module when the slip is detected; a rotation speed control module that decreases the base distribution torque on the basis of the result of slip determination, in a manner that a rotation speed of a slipping wheel that is slipping becomes equal to a target rotation speed; and a torque vectoring module that redistributes a torque down amount of the slipping wheel to the base distribution torque of non-slipping wheels that are not slipping.

Abstract: A powertrain for a vehicle includes a DC/DC converter and a controller. The DC/DC converter includes an inductor and output capacitor and is coupled between a traction battery and an electric drive unit. The controller may be configured to, in response to an electrical connection between the vehicle and an AC grid, couple the output capacitor and inductor in series and across terminals of the traction battery to absorb reactive power from the AC grid.

Abstract: An ECU performs a controlling process including: switching a main converter to a boost converter CNV2 when a boost converter CNV1 is set as a main converter and when a first stress value Va is greater than a second stress value Vb; switching a sub converter to the boost converter CNV1; switching the main converter to the boost converter CNV1 when the boost converter CNV1 is not set as a main converter, and when the second stress value Vb is greater than the first stress value Va; and switching the sub converter to the boost converter CNV2.

Abstract: An electric vehicle charging station network server which manages a plurality of charging stations receives subscriber notification message preferences for a subscriber (e.g., electric vehicle operator) which indicate one or more events of interest that the subscriber wishes to receive notification messages for. A set of one or more contact points associated with the subscriber is also received. The server authorizes the subscriber to use one of the plurality of charging stations. The server receives data associated with the subscriber from that one of the charging stations which indicates that a charging session has been established for an electric vehicle associated with the subscriber. The server detects an event of interest for the subscriber and transmits a notification message for that event to at least one of the set of contact points associated with the subscriber.

Abstract: In an electric charging system, an electric charger and an electric vehicle is connected via a charging cable, and charging power is provided to a battery of the electric vehicle via the charging cable. The electric charger calculates a voltage drop based on a supply current Is of the electric charger and an electric resistance of the charging cable. The electric charger compares a supply voltage of the electric charger with a determination value, and, if the supply voltage reaches the determination value, determines that the battery is charged to a fully-charged state. The determination value is updated by adding the voltage drop to a preset determination base value so as to take the voltage drop of the charging cable into account.

Abstract: An electric vehicle (1) provided with a power-feed unit (14) having charging ports (141and 142) and a battery (11) which is charged by means of electric power supplied from an external power supply, by way of the power-feed unit (14), is provided with: a current sensor (15) which detects a charging current quantity or a discharging current quantity flowing to or from the battery (11); a current quantity display unit (143) which comprises a plurality of display bodies (143a to 143d) arranged on the power-feed unit (14), and which displays the magnitude of a current quantity (i) by varying the lighting state of each indicator (143a to 143d); and a current quantity display control unit (16) which controls the lighting state of each of the display bodies (143a to 143d) in accordance with the current quantity detected by the current sensor (15).

Abstract: The systems and methods disclosed herein are directed to a vehicle charging station having at least one energy storage unit in a degraded state. The station may provide charge using the energy storage unit to an electric or hybrid vehicle. In an illustrative embodiment, charge from the station is provided to the vehicle from the energy storage unit, power grid or a combination thereof. Logic or processes for charging the energy storage unit for the charging station may depend on a variety of factors including, but not limited to, capacity of the energy storage units, number of units, information about an incoming vehicle to charge, etc. After charging, the energy storage unit in its degraded state may be used for fast charging the vehicle.

Abstract: Techniques for electric vehicle systems, and in particular to electric vehicle charging systems and associated methods of use are provided. In one embodiment, a system for charging an electric vehicle comprises an electrical storage unit, an external power source, a charging panel, and a vehicle controller configured to determine if the electrical storage unit requires charging and configured to determine if conditions allow for deployment of a charging panel.

Abstract: A power source ECU transmits a first message for inquiring whether or not a vehicle is parked at a location provided with a power transmission device, after full-scale power transmission is completed. A vehicle ECU transmits a second message for informing that the vehicle is parked, when it receives the first message. When the power source ECU does not receive the second message for informing that the vehicle is parked after transmitting the first message, the power source ECU determines that the vehicle is not parked at the location provided with the power transmission device.

Abstract: A vehicle is configured to receive electric power from a residence and allow an in-vehicle electric storage device to be charged with the received electric power. A controller estimates a start time of use of the vehicle, calculates a charging start time based on the estimated start time of use of the vehicle and a required time to complete charging of the electric storage device, and provides an instruction to perform charging of the electric storage device. The controller learns a relationship between a use status of a household appliance at the residence before the start of use of the vehicle and a use status of the vehicle, and estimates the start time of use of the vehicle based on the learned relationship and the use status of the household appliance.

Abstract: [Task] To accurately estimate a distribution of concentration of lithium in an active material. [Means for Solution] A battery system has a lithium-ion secondary battery (1) and a controller (300). The lithium-ion secondary battery (1) employs a two-phase coexistence type positive electrode active material (141b). The controller (300) calculates a distribution of concentration of lithium in an active material (141b, 142b) of the lithium-ion secondary battery, through the use of a diffusion equation in which a boundary condition is set. The controller corrects a diffusion coefficient that is used in the diffusion equation, in accordance with history data indicating a charge/discharge state of the lithium-ion secondary battery to the present time.

Abstract: An electric vehicle quick charge control apparatus includes: a voltage detection unit for detecting the amplitude of a direct current voltage inputted from a charging station; a quick charging unit receiving a power applied from the charging station so as to quickly charge an electric vehicle battery and monitor the status of charge (SOC) information of the battery; and an integrated power control unit for dually controlling the quick charge of the battery on the basis of first discriminant information discriminated by determining the status of charge of the battery from the SOC information of the battery transmitted from the quick charging unit and second discriminant information discriminated by determining the status of charge of the battery from a detected voltage transmitted from the voltage detection unit.

Abstract: A power supply system includes a power transmission electric circuit via which an electrical load is connected to a first energy storage and to a second energy storage. A first charge rate indicates a charge rate of the first energy storage. A second charge rate indicates a charge rate of the second energy storage. A ratio of a first electric power amount of an electric power to be supplied from the first energy storage to the electrical load and a second electric power amount of an electric power to be supplied from the second energy storage to the electrical load is changed in accordance with the first charge rate at least in a first mode among the first mode and a second mode. The second electric power amount in the second mode is smaller than the second electric power amount in the first mode.

Abstract: A method and a system for controlling motors is provided to have a vehicle travel smoothly in such a manner that, when a state of charge of a battery for supplying electric power stored to a plurality of motors included in the vehicle is low, a consumption of the battery is reduced by decreasing the electric power supplied to each motor of the plurality of motors. The method of controlling motors includes: determining a state of charge of a battery storing electric power supplied to each motor of a plurality of motors; calculating a present current consumption of each motor of the plurality of motors when the state of charge of the battery is equal to or less than a predetermined reference value; and resetting a power supply to each motor of the plurality of motors, based on the present current consumption of each motor of the plurality of motors.

Abstract: An electrical source control apparatus has a selecting device for selecting one switching element from at least two switching elements each of which constitutes predetermined arm element whose switching state should be changed to perform the electrical power conversion, when the electrical power converter performs the electrical power conversion with either one of the first and the second electricity storage apparatuses; and a controlling device for controlling the electrical power converter to change a switching state of the selected one switching element while keeping a switching state of another one switching element in an ON state, the selecting device newly selects the one switching element to reduce a difference between temperatures of the at least two switching elements each of which constitutes predetermined arm element.

Abstract: An electrically-powered vehicle includes a high voltage battery, a charger, and a battery case. The high voltage battery stores electric power for travelling. The charger outputs charge current to the high voltage battery. The battery case accommodates the high voltage battery. The battery case includes a low stiffness material member that covers one side of the high voltage battery in a horizontal direction and that is formed of a material having stiffness lower than stiffness of a portion that covers the other side in the horizontal direction. The low stiffness material member and the charger are fastened to each other at different locations in the horizontal direction.

Abstract: A bond pin assembly for connecting a connection cable with a rail, comprising: a bond pin that is inserted into a through hole in the rail, said bond pin having a transition portion and a screw portion, a diameter of one end of the transition portion being larger than a diameter of the other end of the transition portion, the end of the transition portion having a smaller diameter being connected with the screw portion; a conductive sleeve that is provided between the bond pin and a wall of the through hole of the rail, and a nut that is screwed on the screw portion to fasten an end of the connection cable between the nut and a side wall of the rail. By inserting the conductive sleeve with the shape corresponding to those of the through hole and the bond pin between the through hole and the bond pin and further taking fastening measure, the structural intensity of the bond bin assembly can be increased effectively.

Abstract: A seat arrangement, particularly for a vehicle, that includes a second row seat arrangement. The second row seat arrangement includes a first seat, a second seat and a third seat. The first seat can be stored such that direct access to a third row seat arrangement is not limited by the second row seat arrangement. In a two row vehicle, the second row seat arrangement with the first seat stored provides extra space in the second row for placing cargo.

Abstract: A system for changing rear seat positions in a vehicle between deployed and folded configurations. The system comprises means to effect the steps of initiating a movement of the rear seating and, after initiation, moving the front seat so that collision between the seating is avoided. The front seat is returned to its previous position, or as near as possible thereto, afterwards. The system includes means to detect the position of the seating and to calculate whether a collision will occur, and automatically to effect the requisite movements of the front seating to avoid the collision.

Abstract: A fitting for fixing an object on a rail, the fitting having a retainer (2) in a sliding body and having a holding and locking element (8.1) arranged so as to be movable relative to the retainer.

Abstract: An actuator (110, 210) for a vehicle seat (1) includes a housing (11), a motor (12) which is fixed to the housing and includes a motor shaft (12a), a transmission (13) connected to the motor shaft, an actuator output drive (14) which is connected to the transmission, and a control unit (21). The actuator output drive includes an output element moveable towards an end position from a starting position by rotating the motor shaft in a first direction and in a reversed direction—in the direction of the starting position from the end position. A carriage (15) is driven, upon movement of the output element. A position sensor detects a position of the carriage. An actuator (210) for a vehicle seat is provided, in which a position sensor (28) detects an effect of gravity on the actuator. A vehicle seat (1) with one such actuator (110, 210) is provided.

Abstract: A seat assembly includes a first member and a second member located proximate to the first member. An adjustment system for adjustably positioning the first and second members of the seat assembly includes at least one positioning mechanism operatively connected to one or more of the first member and the second member and at least one actuator connected to the at least one positioning mechanism. A control assembly including a housing having a control region, one or more guide surfaces extending from the control region and one or more recessed areas cooperating with the one or more guide surfaces. At least one of the guide surfaces or recessed areas cooperates with at least one switch configured to send a first signal to a controller when a user activates the at least one switch. The controller is configured to generate an activation signal to activate the at least one actuator.

Abstract: A motor vehicle having a motor vehicle seating arrangement mounted on a floor of the motor vehicle is disclosed in which a utility item in such as a central seat is supported by two spaced apart outer seats so that no floor engaging support is required for the central seat. Advantageously, the central seat is slidingly supported by the pair of outer seats so as to permit one of the outer seats to be slid forward to improve access to a row of seats mounted to the rear of the motor vehicle seating arrangement without moving the central seat or the other outer seat.

Abstract: A vehicle seat includes a track coupled to a floor of a vehicle, a seat bottom coupled to the track, and a seat back coupled to the seat bottom to extend upwardly away from the seat bottom. The track interconnects the seat back and seat bottom to the floor to cause the seat bottom and seat back to slide back and forth relative to the floor.

Abstract: A vehicle-seat mounting system, for securing a child seat in a vehicle, including a collapsible vehicle seat comprising a vehicle seat back configured to be movably connected to a vehicle-seat base. The system also includes a vehicle-seat-back securing structure being connected to, or part of, a rear of the vehicle seat back. The vehicle-seat-back securing structure is configured and arranged at the rear of the vehicle seat back to mate securely with child-seat securing structure corresponding in size and shape to the vehicle-seat-back securing structure. In various embodiments, the technology includes (i) parts of the vehicle seat, such as a kit including the vehicle-seat-back securing structure, (ii) the child seat, or (iii) parts thereof.

Abstract: A safety belt assembling device is designed to assemble a child restraint system with a vehicle seat. The safety belt assembling device includes a child restraint having a sunken structure, a panel and a fastener mechanism. The child restraint is connected with the child restraint system. The panel is rotatably disposed on the child restraint and adapted to press a safety belt of the vehicle seat inside the sunken structure. The fastener mechanism includes a locking rod, at least one latching hook and a releasing actuator. The locking rod is disposed inside the sunken structure. The latching hook is rotatably disposed on the panel and utilized to detachably catch on the locking rod. The releasing actuator is rotatably disposed on the panel and connected with the latching hook. The releasing actuator is rotated from a flush position to a protruding position to disengage the latching hook from the locking rod.

Abstract: A vehicle seat assembly having a seat portion, a tether wire and a tether cover assembly. The seat portion has a passenger receiving surface with at least a portion of the passenger receiving surface coinciding with a first plane. A resilient cushioning material of the seat portion defines a recessed area open to the passenger receiving surface. The tether wire for securing child seat is located within the recess. The tether cover assembly has a housing defining a door opening, a first door and a second door installed within the recessed area. The first and second doors are pivotal about respective first and second pivot axes for movement between respective closed positions concealing the tether wire, and open positions exposing the tether wire. In their respective closed positions the first and second doors coincide with or are parallel to the first plane.

Abstract: A vehicle seat (1) with a seat segment (14) which includes a first seat area (11) with a first backrest (21) that can be pivoted about a pivot axis (A) running in a transverse direction (y) and a second seat area (12) with a second backrest (22) that can be pivoted about the pivot axis (A). The second backrest (22) is equipped with a locking device (9) which interacts with a locking bracket (8) provided on the first backrest (21). The locking device (9) includes at least one axis pin (92) with a longitudinal axis (94) that is inclined relative to the transverse direction (y).

Abstract: A method for producing vehicle seat components involves working a semifinished blank in a cutting manner. The method can be carried out easily and at low cost and makes it possible to produce components that require little reworking and also provides a vehicle seat component that is both suitable for reducing crash energies by deformation and has an adequate wear resistance. The method includes local heating of the semifinished blank in the region of an intended cutting line of the vehicle seat components to be cut out and cutting out the vehicle seat components from the semifinished blank along the cutting line during or shortly after the heating.

Abstract: A vehicle seat includes a seat part for providing a seat surface for a seat occupant, the seat part including two side parts 21 between which a cross tube 5, 6 extends along a pivot axis, and an adjustment mechanism including a plurality of rockers 31 which are pivotably coupled to the seat part. The cross tube 5, 6 is divided into a long tube element 5 and a short tube element 6. The long tube element 5 extends between the side parts 21 of the seat part and is inserted into openings 210 of the side parts 21. The short tube element 6 is connected in a torsionally locked manner both to a first rocker 31 and to the long tube element 5.