Abstract: Methods and apparatus to extricate a vehicle from a stuck condition, apparatus, systems and articles of manufacture are disclosed. An example method includes receiving a command to place a vehicle in a stuck mode. The stuck mode corresponds to an autonomous control mode of the vehicle. The method further includes autonomously controlling the vehicle in the stuck mode to attempt to extricate the vehicle from a stuck condition.

Abstract: A device for operating an apparatus comprising a first controller configured to be controlled by a first control signal, a second controller configured to be controlled by a second control signal, a control unit operatively connected to the first controller and the second controller, wherein the first controller and the second controller are both configured to operate the apparatus.

Abstract: A vehicle includes: a motor, sensors, steering, a suspension, a terrain mode switch, processor(s) configured to: implement a selected terrain mode by tuning at least one of the motor, steering, and suspension; record selected terrain modes; compute a confidence factor based on the recorded selections; determine a road condition based on the sensors; display guidance based on the confidence factor and the road condition.

Abstract: A travel control apparatus includes: an abnormality information acquisition section that acquires information indicating that an abnormality of a driver of a vehicle is detected; a status determination section that makes a determination that the driver is in a driving difficulty state, when the abnormality of the driver is detected continuously; and an evacuation control section that initiates an automatic evacuation control stopping automatically the vehicle when the status determination section makes a determination that the driver is in the driving difficulty state. The travel control apparatus further includes an assistance control section that initiates a driving assistance control during an interval from when the abnormality is detected to when the driving difficulty state is determined; the driving assistance control includes at least activating a lane departure prevention function of the vehicle.

Abstract: A mechanical-electrical drive for a conveying element which can be operated in a power network with an AC voltage of between 350 volts [V] and 450 volts M. The mechanical-electrical drive has an electrical drive motor with a motor shaft and a drive wheel, coupled to the motor shaft in positive and/or negative fit, and a control and regulating unit for the electrical drive motor. The electrical drive motor and the drive wheel can be positioned on a conveying vehicle. It is intended that the mechanical-electrical drive should be capable of integration into existing AC power systems, with lower weight and smaller dimensions have a better degree of efficiency, and at the same time also have a lower maintenance requirement. For this purpose the electrical drive motor, which includes a housing, is configured as a brushless permanent magnet synchronous motor, wherein the drive wheel is coupled free of transmission to the motor shaft.

Abstract: According to some embodiments, a railcar comprises a door, and the door comprises an inside panel and a plurality of ladder rungs coupled to the inside panel arranged in a vertical sequence. The railcar further comprises a folding ladder apparatus comprising a first ladder rung and a second ladder rung. The folding ladder apparatus is pivotally coupled to the inside panel and operable to pivot in a vertical direction between an up position and a down position. When the door is in an open position and the folding ladder apparatus is in the down position, the second ladder rung extends below a bottom of the door facilitating access to the railcar. When the folding ladder apparatus is in the up position, the first ladder rung and the second ladder rung are vertically offset from the plurality of ladder rungs coupled to the inside panel of the door.

Abstract: An interface arrangement for data, signal and/or voice transmission between two adjacent car bodies of a multi-member vehicle, particularly a track-guided vehicle. The interface arrangement includes an electrical contact coupling associated with a first car body which has at least one coupling plane-side coupling contact for data, signal and/or voice transmission to a mating electrical contact coupling of a second car body adjacent to the first car body. In order to realize the interface arrangement particularly cost-effectively without losing its project-specific design capability, at least one coupling plane-side coupling contact is provided to be connected to a car body-side coupling contact of an electrical coupling/train interface solely by means of a data bus cabling.

Abstract: A magnetically clampable rail shunt (1) comprising two magnetic clamps (10), each clamp having a magnetic device for attaching the clamp to one of two parallel railway rails (R1, R2) of a railway track by magnetic force, and an electrical conductor (20) electrically connecting the two magnetic clamps (10) for shunting the two parallel railway rails. The rail shunt (1) is characterised by a variable electrical resistor assembly (30) for adjusting the electrical resistance of the rail shunt (1), said variable electrical resistor assembly (30) being connected in series between the two magnetic clamps (10) via said electrical conductor (20). Preferred application to testing of track circuits.

Abstract: A method includes generating PTC data for at least a portion of a track network, the PTC data comprising real-time train data generated by an on-board system of a train traveling in the track network, the real-time train data comprising a train speed and a train location, generating predictive train location data based at least partially on the PTC data, the predictive train location data comprising at least one upcoming location of the train associated with at least one time; and transmitting at least a portion of the predictive train location data to at least one navigation service in response to receiving a request, the request comprising at least one of the following: a route, an intersection, a rail crossing, geographic coordinates, or any combination thereof.

Abstract: A railway safety critical application system substitutes commercial off-the-shelf (COTS) hardware and/or software for railway-domain specific product components, yet is validated to conform to railway safety critical system failure-free standards. The safety critical system uses a pair of tasks executed on a controller of a COTS personal computer or within a virtual environment with asymmetric communications capability. Both tasks receive and verify safety critical systems input message data and security code integrity and separately generate output data responsive to the input message. The first task has sole capability to send complete safety critical system output messages, but only the second task has the capability of generating the output security code. A failure of any of systems hardware, software or processing capability results failure to transmit a safety critical system output message or an output message that cannot be verified by other safety critical systems.

Abstract: A multipurpose utility cart for moving equipment and other cargo is provided. A utility cart includes a shelf defined by a rim surrounding the shelf. The rim has a u-shaped wall with at least one aperture formed in an upper surface thereof. The u-shaped wall and the at least one aperture define a channel for receiving an accessory. The utility cart has a handle coupled to the rim as well as a plurality of legs supporting the rim. The utility cart has a plurality of wheels such that the cart is manually propellable by a user exerting a force on the handle.

Abstract: A child stroller has a frame with a primary seat frame, at least one forward wheel and at least one rear wheel rotatably mounted to the frame, and primary and secondary forward-facing seats operatively supported by the frame. The secondary seat is positioned at least partially behind and at least partially below the primary seat. The stroller is convertible between an in-use configuration for transporting children and a folded storage configuration without removing the secondary seat, with the secondary seat is positioned at least partially within the frame when the stroller is in the folded storage configuration. The stroller is configured such that the secondary seat is selectively movable from an in-use position to a storage position without folding the remainder of the stroller such that, following movement of the secondary seat to the storage position, the remainder of the stroller is selectively foldable around the secondary seat.

Abstract: Disclosed is a steering wheel having cooling system inside. A steering wheel includes a hub connected to a steering column, a rim provided with a hollow formed therein and spokes configured to connect the hub and the rim. Cooling units located at the hub or the spokes of the steering wheel is provided to supply cooling air. Heat pipes thermally connect the cooling units and the rim of the steering wheel.

Abstract: A knit includes a knitted fabric into which a ground yarn is knitted and a heater wire configured to be energized to generate heat to heat a vehicle member. The heater wire is inlaid into the knitted fabric by inlay stitch.

Abstract: A steering column assembly includes a locking assembly. The locking assembly is operatively connected to a jacket assembly. The locking assembly includes a housing, a first member, a second member, and a third member. The housing has a base and a wall that extends from the base. The wall and the base define a cavity. The first member is disposed within the cavity. The first member defines a first member ramp. The second member is disposed within the cavity and is spaced apart from the first member. The second member defines a second member ramp. The third member has a body that is disposed between the first member and the second member and an actuation arm that extends from the body.

Abstract: A steering column assembly includes a restriction assembly that is operatively connected to a jacket assembly and a mounting bracket. The restriction assembly includes a first strap and a second strap. The first strap has a pivot that extends into the mounting bracket and has a plurality of first locking teeth. The second strap is disposed transverse to the first strap. The second strap has a plurality of second locking teeth that face towards the plurality of first locking teeth and has a plurality of third locking teeth disposed opposite the plurality of second locking teeth.

Abstract: A ball screw drive includes a lead screw for converting an auxiliary torque produced by an electric motor into an auxiliary translational force acting on a steering rack in a steering system of a motor vehicle. One end of the lead screw and one end of the steering rack are each connected to a track rod via an axial link, and the ball screw drive has a ball nut mounted in a housing with a fixed bearing. In order to withstand strong lateral loads or lateral forces coming from the track rod or rods and acting in the radial direction there is provided between the end of the lead screw connected to the track rod and the ball screw drive a plain bearing element which supports the lead screw radially against the housing. The support is provided by an adjustable radial clearance, and the plain bearing element is a sleeve.

Abstract: A driving support control apparatus using an electric power steering mechanism that improves followability to a target track and safety of steering operation by adapting information of a steering torque to a driver's characteristic on the basis of conditions for enhancing predictability of a vehicle track. The driving support control apparatus includes: a SAT estimating section that estimates a self-aligning torque; a SAT transfer characteristic control section that corrects the self-aligning torque in order to make a time constant of a self-aligning torque transfer characteristic equal to a desired value, and compensates the steering torque; a disturbance sensitivity control section that suppresses a disturbance included by the self-aligning torque, and compensates the steering torque; and a vehicle characteristic compensation control section that compensates the steering torque in accordance with an actual steering angle so that a vehicle characteristic becomes a primary delay characteristic.

Abstract: A steering apparatus for a vehicle according to the present disclosure includes: a controller configured to transmit steering control signals on the basis of a first input signal from a torque sensor configured to sense torque of a steering shaft and a second input signal from any one of a location sensor, a camera sensor, a distance sensor, a vehicle speed sensor, and a vehicle height sensor; a first steering power assist configured to generate steering force by rotating the steering shaft or supplement steering force of the steering shaft rotating forward or backward, using electric power in response to the steering control signal from the controller; and a second steering power assist configured to switch channels for working fluid, depending on forward or backward rotation of the steering shaft, and steer wheels by operating a tie rod or a knuckle using hydraulic pressure of the working fluid.

Abstract: A reinforcement member disposed at a front portion of a floor panel is disposed angled toward a vehicle width direction inside on progression from a position (input portion) on a vehicle width direction outside and vehicle front-rear direction front side of the floor panel toward the vehicle front-rear direction rear side. An outer end portion of the reinforcement member is joined to a rocker, and an inner end portion of the reinforcement member is joined to a floor tunnel portion. When the vehicle is involved in a frontal collision, collision load is input in an oblique direction to the position on the vehicle width direction outside and the vehicle front-rear direction front side of the floor panel.

Abstract: The vehicle attachment component 1 is attached to an instrument panel reinforcement 100 so as to sandwich its thickness part between a detachment preventing engagement portion 21 engaged with the instrument panel reinforcement 100 from the deep side in the insertion direction and elastic pressing portions 20 protruding from the near side in the insertion direction of the detachment preventing engagement portion toward both sides in a direction 100Y perpendicular to the instrument panel reinforcement 100. The elastic pressing portions 20 have thin distal end portions 20A which always elastically press the instrument panel reinforcement 100, and thick base end portions 20B which withstand a load from the instrument panel reinforcement 100.

Abstract: A fairing assembly for a commercial vehicle is disclosed. The fairing assembly includes a fairing and a mounting system for mounting the fairing on a frame of the commercial vehicle. The mounting system includes a first mounting bracket assembly mounted on the fairing and a second mounting bracket assembly configured to be mounted on the frame. The mounting system is configured to hold the fairing in a covering position for laterally covering at least a major portion of a wheel of the commercial vehicle and allow the fairing and the first mounting bracket assembly to pivot from the covering position into an intermediate position and translationally move along the second mounting bracket assembly in a transverse direction of the commercial vehicle from the intermediate position into a stowed position in which the fairing rests on the second mounting bracket assembly via the first mounting bracket assembly.

Abstract: Disclosed are a partition panel for vehicles and a method of manufacturing the same. The partition panel for vehicles includes a panel part formed of a composite material to divide a trunk and the inside of a vehicle from each other and a reinforcement part formed of a composite material, inclined upwards from the center of the lower portion of the panel part to both ends of the panel part, and connected integrally to the panel part.

Abstract: A deflector arrangement for a tractor is provided, the tractor being connectable to a trailer that forms an aerodynamic drag source. The deflector arrangement includes a deflector, a mount for connecting the deflector to the tractor, an arrangement for selectively deploying and retracting the deflector relative to the tractor, a sensor arranged to sense that the trailer that forms the aerodynamic drag force is attached to the tractor and send a loaded signal in response thereto, and a controller arranged to receive the loaded signal from the sensor and to control the selectively deploying and retracting arrangement to deploy the deflector in response to the loaded signal.

Abstract: An air-drag reduction mechanism for a vehicle is provided. The mechanism includes a shell structured to be deployable in a direction away from a vehicle, the shell including a plurality of telescoping shell segments. The shell segments are structured to form a shell having a shape which tapers or narrows in a direction away from the vehicle. The air-drag reduction mechanism may be incorporated into an air-drag reduction system including an actuation mechanism operatively coupled to the telescoping shell and operable to deploy the shell.

Abstract: An aerodynamic control system of a vehicle includes a utilization module that, based on a longitudinal force on a tire in a longitudinal direction and a latitudinal force on the tire in a latitudinal direction, determines a utilization force on the tire of the vehicle and a direction of the utilization force. A maximum module, based on the direction of the utilization force, determines a maximum force of the tire for maintaining traction between the tire and a road surface contacting the tire. A difference module determines a difference between the utilization force on the tire of the vehicle and the maximum force on the tire. An aerodynamic actuator control module selectively adjusts a position of an aerodynamic actuator of the vehicle based on the difference.

Abstract: The present invention relates to an assembly for storing bicycles, the assembly including: at least one fixed rail; and a support frame on which at least one bicycle can be loaded in an elevated position above the ground, wherein the support frame is moveable on the rail between a forward advance position for loaded and unloading the bicycle from the support frame, and a rearward retracted position for storing the bicycle. When the support frame is in the forward advanced position, a bicycle loaded onto the support frame can be locked to the support frame using a conventional bicycle lock.

Abstract: An anti-theft device for battery of electric bicycle is described. The device locks the battery to the frame of electric bicycle. The device preferably further locks the rear wheel of the electric bicycle.

Abstract: The present invention relates to a saddle for a vehicle, a bicycle or a motorcycle including a seating structure, a fork member secured below the seating structure and at least one anchoring component of each rear end of the fork member to the seating structure.

Abstract: A bicycle tail light or front light has a mounting base to connect to the bicycle, and an LED light unit for insertion into and removal from the base. The light unit includes a printed circuit board with LED driver and a rechargeable battery, all of which are encapsulated by a direct overmolding that forms a casing for the unit. For charging the light unit is pulled out from the base and plugged into a USB port. A tongue with USB blade at the back of the light unit functions to secure the light unit to the mounting base, and the attachment of the units switches power to the light unit. A motion detector on the PCB shuts off the LED if no motion is detected for several minutes, thus eliminating need for any exterior switch.

Abstract: An inverted pendulum vehicle has a vehicle body frame, a main wheel combining a plurality of driven rollers arranged along a circle, a pair of drive disks rotatably supported by the vehicle body frame around a laterally extending rotational center line, a plurality of drive rollers arranged rotatably on each drive disk along a circumferential direction and configured to engage the driven rollers of the main wheel, a drive unit for individually driving the drive disks, a control unit for controlling the drive units under an inverted pendulum control, a tail wheel arm having a base end pivotally attached to a part of the vehicle body frame around a laterally extending pivot center line, a tail wheel rotatably supported by the tail wheel arm and a skid member attached to the tail wheel arm, the skid member including a pair of side walls slanting outward toward upper edges thereof.

Abstract: A bicycle frame structure that is manufactured by forming left and right panels and then bonding them in a pipe in/are configured to include a first fixing member fixed to the rear end portion of a chain stay and a hanger coupled to the first fixing member, being configured for rotating around a hinge pin, and having an axle slit formed in a predetermined direction.

Abstract: A suspension device of a bicycle front fork is installed in a head tube of a bicycle handlebar. The suspension device includes: a cylinder with a bottom fixed to a base of the bicycle front fork and a top passed into the head tube; a piston rod with a top fixed to an inner wall of the head tube and a bottom having a piston and extended into the cylinder; a spring device coupled to the piston rod and having a force to push the piston rod away from the cylinder. The cylinder below the piston has an air chamber communicated with an intake valve of the base. The air pressure of air chamber may be adjusted to adjust the buffering pressure of the spring device, so that a user may adjust the shocking pressure of the front fork.

Abstract: A bicycle pedal is disclosed that consists of a pedal body including a pair of surfaces interchangeably configured to receive a foot and an axle having a first end configured to be received by a crank arm of a bicycle and having a second end received into the pedal body, the axle configured to rotate with respect to the pedal body. The second end of the axle is configured to rotate freely within the pedal body without a bearing system. The bicycle pedals disclosed herein include a fewer number of parts than conventional bicycle pedals, and yet may be stronger and more durable, than conventional bicycle pedals. Further, the bicycle pedals disclosed herein may be manufactured in less time and at lower costs than conventional bicycle pedals.

Abstract: An apparatus, system, and method for extending a bicycle pedal away from a bicycle frame, comprising a coupling member configured to removably attach to a bicycle pedal, and a plug member comprising a proximal end configured to be removably attached to a bicycle pedal crank arm and a distal end configured to be removably inserted into said coupling member.

Abstract: Disclosed is an electric bicycle drive assembly with torque detection, including a torque detection mechanism, a clutch mechanism, a sleeve member, a pedal axle, and an electric machine assembly. The electric machine assembly is coupled to a seat, and the seat is mounted a vehicle frame. The torque detection mechanism, the clutch mechanism, and the sleeve member are assembled in sequence with the pedal axle extending therethrough and are arranged inside the seat. In case that the pedal axle is operable to drive the torque detection mechanism to rotate, when the torque detection mechanism detects a torque, a signal is generated and fed to a controller module to activate the electric machine assembly, such that the electric machine assembly drives the sleeve member and the clutch mechanism to rotate and the clutch mechanism in turn drives a toothed wheel of a bicycle to rotate.

Abstract: A bicycle control system may be configured to automatically control a bicycle, or components thereof. The bicycle control system may include a system control device configured to provide a simplified shifting system wherein large changes in speed associated with starting and stopping do not require the full attention of the automatic shifting system. The shifting system, or a system control device configured for controlling the shifting system, may be configured to determine when to enter an automatic shifting control mode, establish parameters for the automatic shifting of the automatic shifting control mode, and/or compare detected activities and values of the bicycle to the established parameters.

Abstract: A snow bike track assembly includes a frame assembly, at least one strut, an endless track, a plurality of top and bottom rollers, a skid rail assembly, a drive assembly, and a swing arm assembly. The frame assembly is configured to connect to a frame of a motorcycle in place of a rear wheel of the motorcycle. The at least one strut is connected to the frame assembly and configured to connect to the motorcycle frame in place of a rear shock of the motorcycle. The plurality of top rollers are mounted to the frame assembly and arranged to support the endless track. The plurality of lower rollers are mounted to the skid rail assembly and arranged to support the endless track. The drive assembly is configured to drive the endless track. The swing arm assembly is coupled between the frame assembly and the skid rail assembly.

Abstract: A canopy structure includes arch members defining a barrel vault and horizontal members. Each of the upper horizontal members is affixed to the parallel arch members. The canopy structure further includes arched vertical supports. The upper horizontal supports are affixed to the arched vertical supports. The canopy structure further includes lower horizontal members. Each of the lower horizontal members is affixed to the parallel arch members. According to another aspect, a canopy structure includes a U-shaped dock surrounding a watercraft mooring area. The canopy structure includes inner dock arm edges located on opposite sides of the watercraft mooring area. The canopy structure further includes vertical supports affixed to at least two of the inner dock arm edges. The vertical supports support a canopy frame. The canopy frame defines a barrel vault.

Abstract: A cleat for a boat includes a cam mounted to the boat, where the cam has a rotatable toothed surface for pressing against a line. The cleat also includes a guide mounted to the boat adjacent the cam, where the guide has a surface for directing the line above a top of the cam. In addition, the cleat has a slot formed in the surface of the guide, which permits the line to be moved into opposition with the rotatable toothed surface of the cam.

Abstract: A mooring system for deploying a payload in a fluid moving relative to the payload and placing the payload to a position across moving path of the fluid from an anchoring point, the mooring system comprises: a main tether; an anchor means attached to a first end of the main tether and fixed to the anchoring point; and a main sail means attached to a second end of the main tether and immersed in the fluid; wherein the payload is attached to the second end of the main tether; and the fluid moving relative to the main sail means creates a fluid dynamic lift force on the main sail means and pulls the payload in a lateral direction with respect to the moving path of the fluid.

Abstract: The invention relates to a system for the storage and production of electrical energy in a marine environment, wherein at least one ballast is lowered from a high position to a low position and then raised, by means of at least one cable (115) connected to a barge or platform (110). The barge comprises a generator/motor (113) actuated by the cable or actuating same. The ballasts (107, 108) are secured to a partially floating element (106) which is itself connected, by a retaining cable (105), to an element (101) floating on the surface and provided with means for varying the length of said retaining cable (105), the partially floating element (106) comprising a volume of gas compressible according to the surrounding pressure.

Abstract: A survival platform, comprising two flexible outer sheets (4, 5), the outer sheets each having a circumference (2) and being sealed together at their circumferences (2) to define a void (18) therebetween, the survival platform further comprising an inner flexible sheet (6) interposed between the outer sheets (4, 5) and dividing the void (18) into two sub-voids (18a, 18b), and means (8) for inflating the survival platform by introducing a gas into the void to increase a gas pressure therewithin, in which the inner sheet (6) is arranged such that, should one of the outer sheets (4, 5) be breached at a breach, the gas pressure within the void will tend to force the inner sheet (6) through the breach, thereby to block the breach and reduce the level to which gas escapes through the breach.

Abstract: A closure system is provided. The closure system comprises an outer panel comprising an inner surface having a plurality of connecting members. An inner panel is provided comprising an outer surface having a plurality of connecting members, and an insertion panel configured for engagement with the outer panel and the inner panel. The insertion panel comprises an interior surface and an exterior surface where each surface includes a plurality of connecting members. The inner surface of the outer panel engages with the exterior surface of the insertion panel, and the outer surface of the inner panel engages with the interior surface of the insertion panel so as to seal the insertion panel with the outer and inner panels. Methods of use are also disclosed.

Abstract: An underwater drone is disclosed. The underwater drone includes a horizontal propeller module and a vertical propeller module to respectively provide a drone body with a horizontal proceeding force and a vertical lifting or diving force. The underwater drone includes a horizontal channel and a vertical channel, which allow the water to pass through for reducing resistance when the underwater drone moves forwards, upwards or downwards. The underwater drone is equipped with a buoy member with an antenna portion of a communication module disposed therein. The underwater drone is equipped with the fishing device, the fish finding device and the image capturing module. Therefore, the underwater drone is capable of fishing, rapidly moving and wireless remote control.

Abstract: An engine control device includes an obtaining unit, a determining unit, and a control unit. The obtaining unit obtains model information on an engine based on a signal from a sensor, the sensor detecting a rotation of a camshaft unit. The determining unit determines whether the model information obtained by the obtaining unit matches stored model information. The control unit gives a warning to a user when the determining unit determines that the model information is not matched and controls the engine corresponding to the stored model information when the determining unit determines the model information is matched.

Abstract: A boat includes a boat body, a propulsion unit, a steering wheel that turns about a first turning axis and has a circular or substantially circular shape or an arcuate or substantially arcuate shape about the first turning axis, and an operator unit on the steering wheel including a first operator which is located in a first direction with respect to the first turning axis and a second operator which is located in a second direction with respect to the first turning axis, and that performs a throttle operation and a shift operation on the propulsion unit.

Abstract: Methods of assembling stiffened composite structures are disclosed. Some methods include forming a stiffener assembly by compacting it within a trough formed in a trunnion. A single trunnion may accommodate two or more different types of stiffeners, thereby avoiding the need for multiple sets of tooling. In some methods, a plurality of stiffener segments may be spliced together, thereby avoiding the need to transport and handle an entire stiffener. A vacuum chuck may be utilized in some examples to transfer the stiffener assembly from the trunnion to a transfer tool. The same vacuum chuck may be transferred along with the stiffener assembly on the transfer tool and loaded onto an inner mold line layup mandrel, where the vacuum chuck may be used to compact the stiffener assembly to the inner mold line layup mandrel.

Abstract: A drain mast for draining liquids from an aircraft, comprising a tube that comprises an internal rim connected to the internal surface of the tube, the internal rim being located in a plane inclined with respect to the horizontal plane of the aircraft and having its lowest part located on the second end of the tube, an aperture for evacuating the liquid, the aperture being located at the lowest part of the internal rim and in the face of the tube facing the incoming airflow, the internal rim and the aperture being configured such that at the second end, the liquid is directed by gravity through the internal rim to the aperture and wherein, in use, the drained liquid flowing from the aperture is pushed by the incoming airflow to the atmosphere.

Abstract: A floor module for an aircraft cargo hold including a cover element and a floor element which is spaced apart from the cover element at least in some segments and which is attached to an underside of the cover element. The cover element includes receiving openings for receiving ball elements. The cover element and the floor element can be formed as a hybrid composite part.