Abstract: Embodiments of the invention provide an innovative arrangement to control the height of ground engaging tools located on agricultural implements via gauge wheel assemblies, particularly for supporting and adjusting the height of winged extensions of the implement frame. The gauge wheel assemblies may provide an adjustment assembly in the form of a screw jack, which can be coupled to a support bracket that is attached to the implement frame and also coupled to a support tube that is coupled to a gauge wheel via pivot assembly and a bracket. The bracket and support tube may be coupled at discrete positions according to the height adjustment of the screw jack via pins and holes in the bracket and tube. When coupled, the pins and holes of the support bracket and tube may reduce the load of the winged extensions on the screw jack mechanism.

Abstract: A ripper assembly includes a ripper frame, which has at least one slot disposed in each of two opposing sidewalls. The ripper frame accommodates a ripper shank in a channel within the ripper frame. A pin is provided to pass through the at least one slot and through a through-way in the ripper shank to constrain the ripper shank within the ripper frame. At least one pressure source supplies pressure to the ripper shank to engage the ripper shank in a position.

Abstract: A pile driving system for driving a pile. The pile driving system comprises a housing assembly, a hammer, a helmet member, and a lifting system. The housing assembly defines at least one vent opening is arranged at a first vent location along the drive axis, and at least one vent opening is arranged at a second vent location along the drive axis. When the hammer drops and is above the first vent location, ambient air flows from the main chamber through the vent openings formed at the first and second vent locations. When the hammer is below the first vent location and above the second vent location, ambient air flows from the main chamber through the vent openings formed at the second vent location. When the hammer is below the second vent location, air within the main chamber is compressed to preload the helmet member.

Abstract: Interactive tools and methods are provided. A particular interactive tool set includes a portable handheld tool and an alignment tool. The portable handheld tool includes a selective drive system. When the selective drive system is engaged, the portable handheld tool is operable perform a function and, when the selective drive system is not engaged, the portable handheld tool is not operable to perform the function. The alignment tool is physically separate and distinct from the portable handheld tool. The selective drive system engages in response to an indication of an aligned state of the alignment tool.

Abstract: The invention relates to an electrical machine tool, particularly a hand machine tool, having a contrast detection device, an analysis unit, and at least one sensor provided for capturing a surface of a work piece. According to the invention, the analysis unit is provided for detecting a differentiation of the surface from an at least partially automatic guide using data captured by a sensor.

Abstract: The invention relates to a power tool, in particular an electrically operable hand-held power tool, having at least one tool drive shaft for direct or indirect rotary drive of an insert bit, with the insert bit being accommodated in a tool holder that is connected or detachably connected to the tool drive shaft, particularly in a replaceable fashion. At least one drive device and at least one clutch device that couples the at least one drive device to the at least one tool drive shaft is provided which has at least two different, user-selectable, limit torques. An actuating device is provided that makes it possible, with a replacement of the insert bit and/or a replacement of the tool holder, to reset the clutch device to a lower limit torque, preferably to the lowest possible limit torque.

Abstract: A cartridge for breaking rock which includes a tubular housing in which is formed a first compartment. The cartridge includes a first energetic composition inside the first compartment and a primer which is exposed to the first energetic composition. The cartridge includes a second compartment inside the tubular component and a plunger inside the tubular component which is movable under explosive force towards the primer. The cartridge still further includes a second energetic composition inside the second compartment and an actuator and a fuse for initiating the second energetic composition. The actuator has an area which is smaller than the cross-sectional area of the plunger and is movable, by movement of the plunger, towards the primer, and in that the primer is initiated by the actuator only when liquid fills a volume enclosed at least partly by surfaces of the actuator and of the primer.

Abstract: The present invention relates to an emulsion, consisting of an oil phase and an aqueous phase and comprising as emulsion components (?1) 15 to 40% by weight of at least one water-immiscible organic solvent as solvent of the oil phase, (?2) 15 to 40% by weight of water as solvent of the aqueous phase, (?3) 10 to 40% by weight of at least one surfactant, (?4) 10 to 40% by weight of an alkoxylated fatty alcohol and (?5) 0 to 25% by weight of at least one other additive, wherein the quantities by weight of the components (?1) to (?5) are each relative to the total weight of the emulsion, and together add up to 100% by weight. The invention further relates to a method for producing an emulsion, to the emulsion which can be obtained from said method, to the use of an emulsion, to a method for cleaning the surfaces of well holes, drilling devices or drillings, to a method for producing a well bore, and to a method for producing an oil or a gas.

Abstract: A rotary steerable drilling system comprises a rotatable housing having a plurality of steering actuators mounted thereon and movable, individually, between retracted and extended positions, the actuators being electrically controlled, and a battery arranged to supply electrical power to the actuators.

Abstract: The present specification describes a drill bit for drilling a cavity. The drill bit may include a chassis, a plurality of gauge pad sets, and at least one gauge pad structure. The chassis may be configured to rotate about an axis. The plurality of gauge pad sets may each include at least one gauge pad. The at least one gauge pad structure may moveably couple at least one of the gauge pads of at least one of the plurality of gauge pad sets with the chassis.

Abstract: A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.

Abstract: A hammer assembly is actuated to drive an earth bit through a formation. The hammer assembly includes a piston, and a flow control tube which extends through the piston. The flow control tube includes drive and return guide ports. The piston is repeatably moveable relative to the drive and return guide ports in response to a fluid flow through the flow control tube. In this way, the hammer assembly is actuated.

Abstract: A hammer bit for drilling a borehole in earthen formations includes a bit body having a bit axis and a bit face, a plurality of gage cutter elements mounted to the bit face in a circumferential gage row, and a plurality of adjacent to gage cutter elements mounted to the bit face in a circumferential row that is radially adjacent the gage row. The ratio of the radial overlap distance to the radial span distance between radially overlapping gage cutter elements and adjacent to gage cutter elements is greater than 0.25. The ratio of the radial overlap distances to the diameter of the gage cutter element is greater than 0.25. An average cutting area of the gage cutter elements per gage cutter element is less than an average surface area of an entire cutting surface of each of the gage cutter elements.

Abstract: Diamond bonded constructions comprise a body comprising a plurality of bonded together diamond grains with interstitial regions disposed between the grains that are substantially free of the catalyst material used to initially sinter the body. A metallic substrate is attached to the body, and a braze joint is interposed between the body and the substrate. The body is metallized to include a metallic material disposed along a substrate attachment surface in contact with the braze joint, wherein the metallic material is different from the braze joint material. The metallic material may exist within a region of the body extending fully or partially into the body, and/or may exist as a layer extending away from the substrate attachment surface. The body includes a working surface characterized by empty interstitial regions or by interstitial regions filled with an infiltrant material, wherein the infiltrant material is different from the metallizing material.

Abstract: Polycrystalline compacts include a hard polycrystalline material comprising first and second regions. The first region comprises a first plurality of grains of hard material having a first average grain size, and a second plurality of grains of hard material having a second average grain size smaller than the first average grain size. The first region comprises catalyst material disposed in interstitial spaces between inter-bonded grains of hard material. Such interstitial spaces between grains of the hard material in the second region are at least substantially free of catalyst material. In some embodiments, the first region comprises a plurality of nanograins of the hard material. Cutting elements and earth-boring tools include such polycrystalline compacts.

Abstract: A method of negotiating an obstacle including driving an articulated vehicle along a drive direction over a surface, driving the articulated vehicle to approach an obstacle with a rearward portion of the articulated vehicle, pivoting arms of the vehicle from a stowed position next to a main frame of the vehicle downward and away from the main frame, raising and supporting the main frame on the arms, positioning at least a portion of the main frame substantially against the obstacle, and driving onto the obstacle.

Abstract: In an inverted pendulum type vehicle including a frame (2) incorporated with a propulsion unit (3) and a seat unit (4) provided on the frame, the seat unit (4) is moveable between a deployed position for supporting a rider and a retracted position different from the deployed position. Thereby, an object support unit for supporting an object such as a rider and a cargo can be positioned differently depending on the need so that the convenience and freedom in the use of the vehicle can be enhanced by preventing the object support unit from encumbering the user when not in use.

Abstract: A drive through crankshaft assembly which selectively provides rotational power to a vehicle accessory while continuously providing rotational power to a second vehicle accessory. Rotational power is selectively provided using a cone clutch assembly that is modular. The cone clutch assembly provides power to the first vehicle accessory when it is in an engaged state. The first vehicle accessory is turned off by putting the cone clutch assembly into a disengaged state using a clutch control system.

Abstract: A cooling system for an electric vehicle is provided, wherein an exhaust air duct extending into a box is disposed in an air outlet of the box disposed in a lower portion of the vehicle interior; an air discharge port of the fan case coupled to the air outlet portion of the cooling duct faces an air inlet of the exhaust air duct with a predetermined gap therebetween in a direction of air flow; and when the air discharge port of the fan case is projected on a plane including the air inlet of the exhaust air duct, the air discharge port of the fan case is opened inside the air inlet of the exhaust air duct and a predetermined gap is formed in a transverse direction to the air flow between the air discharge port of the fan case and the air inlet of the exhaust air duct.

Abstract: In control apparatus and method for a hybrid vehicle, a line pressure control valve disposed at a downstream side of each of mechanical oil pump (M-O/P) and electrically driven oil pump (S-O/P) to decrease a supplied hydraulic pressure from at least one of the mechanical oil pump and the electrically driven oil pump by opening drain ports thereof in accordance with a control valve command value is provided, the control valve command value is set by adding a predetermined additive correction quantity to a required line pressure set in accordance with operating states of a hydraulic pressure clutch (CL1) and a transmission and the drain ports of the line pressure control valve are controlled to a closure side, during an actuation of the electrically driven oil pump.

Abstract: A vehicle, such as a loader, is disclosed. The vehicle includes a cooling system having a pump that communicates coolant to heat-generating components to be cooled by the coolant.

Abstract: A front end structure for a vehicle includes a fascia member defining a forward end of an engine compartment of the vehicle and a radiator disposed in the engine compartment rearwardly spaced from the fascia member. At least one structural brace extends from a location at or near an underside of the vehicle to a location at or near an upper end of the engine compartment. A duct member is interposed between the fascia member and the radiator. The duct member at least partially blocks the radiator and defines a duct passage extending from an underside opening of the vehicle to the radiator. The duct member has at least one recess defined therein that receives the at least one structural brace.

Abstract: An off-road vehicle has a frame, at least four wheels, a left seat and a right seat disposed in a side-by-side configuration, a steering assembly, an engine having an upper portion, and a console mounted between the left seat and the right seat. The console covers at least the upper portion of the engine. The console includes side walls and an upper portion connected to the side walls to define a central cooling tunnel. The central cooling tunnel includes a frontal opening and a rear opening allowing air flow through the central cooling tunnel from the frontal opening to the rear opening.

Abstract: An interior body trim assembly includes a trim panel and a closure member. The trim panel has an indented panel portion with an outline of part of an outer boundary of a passage. The closure member meets the trim panel with a portion of the closure member extending over the indented panel portion. The portion of the closure member and the indented panel portion complete the outer boundary of the passage and thereby form the passage.

Abstract: A vehicle body rear portion structure which can improve the operability of a coupling operation between a flange which extends downward from a peripheral portion of a parcel shelf and an upper end portion of a battery cover is provided.

Abstract: In one aspect, a vehicle may include an energy storage device, the energy storage device being configured to supply electrical power to the vehicle; a cover defining an internal volume and an opening into the internal volume, the energy storage device being received in the internal volume, wherein the cover is formed as a layered structure including at least a first layer and a second layer inside the first layer, the first layer consisting of a woven ceramic fabric and the second layer consisting essentially of oxidized polyacrylonitrile fibers.

Abstract: There is provided a battery pack mounting structure for an electric vehicle. A battery pack is mounted in a space behind a rear seat of the electric vehicle. Battery modules are accommodated in the battery back are in a stacked state in a height direction of the electric vehicle. A floor panel behind the rear seat is formed with an opening into which an upper part of the battery pack is inserted. When seen from a side of the electric vehicle, a dimension of one battery module disposed at a position protruding upwards from the opening, is smaller in the longitudinal direction than that of another battery module disposed below the one battery module, and a front end portion of the one battery module is offset towards a rear side of the electric vehicle relative to that of the another battery module.

Abstract: There is provided a vehicle hood moving device for a vehicle having a hood movably supported at a vehicle body front. The hood moving device includes a first magnet disposed in the hood, a second magnet provided to the inside of an engine room and disposed so as to face the first magnet, a collision detecting sensor to detect that a pedestrian collides with the vehicle, and a collision predicting device to detect whether or not a pedestrian has a danger of colliding with the vehicle. When detection is made with these sensors and predicting device that a pedestrian has collided with the vehicle or has a danger of colliding with the vehicle, the hood is moved as to the vehicle body by magnetic force of the first magnet and second magnet. The second magnet is an electromagnet, and the first magnet is a permanent magnet.

Abstract: A snowmobile has a structure that reduces and minimizes adverse affects of snow on a throttle motor. The snowmobile includes a snowmobile body including an engine room therein, an engine which is disposed inside the engine room, a throttle valve arranged to adjust intake air supplied to the engine, a throttle motor arranged to drive the throttle valve and disposed ahead of the engine, and an air box arranged to pass the intake air through toward the engine, disposed ahead of the engine and including a portion located ahead of the throttle motor.

Abstract: A mounting structure of a handle switch device with which a panel can be replaced by manipulating fasteners for fastening two outer casings of the handle switch device together. A rear casing is temporarily mounted to an inner casing that is mounted to a handle pipe, engagement pieces of a design panel are inserted through through holes of a front casing, and the front and rear casings are fastened together by mounting screws, thereby completing assemblage of the handle switch device. To replace the design panel, the mounting screws are loosened to bring them into a half-engagement state and the front casing is displaced toward a driver side to disengage projection ribs of the inner casing from the through holes. Next, the design panel is dismounted from the front casing, a new design panel is mounted to the front casing, and the mounting screws are tightened.

Abstract: A construction equipment machine includes an operator station equipped with a driver seat which is rotatable around a vertical axis at least from a first operating position to a second operating position through an intermediate position, wherein the machine includes at least a first hand controller which the operator may use at least for some operations and at least in one position of the seat for operating a hydraulic implement. When the seat moves between the first position up to at least the intermediate position, the first hand controller is in a first configuration with respect the seat so as to be in a manipulatable position with respect to the seat, and, when the seat is in its second position, the controller is shifted to a second configuration where it is displaced to a non manipulatable position with respect to the seat.

Abstract: When an operation lever is operated to either a speed changing path or a neutral path, a second link mechanism establishes no operative coupling between the operation lever and a parking brake mechanism. When the operation lever is operated from the neutral path to a linking path, the second link mechanism establishes operative coupling between the operation lever and the parking brake mechanism. Further, when the operation lever is operated to a braking path, the parking brake mechanism is activated. When the lever is operated to a locking path, a locking mechanism is activated.

Abstract: An operating mechanism (178) for disengaging a cruise control lever (176) operatively engaged with a hydrostatic transmission of an off-road vehicle, the cruise control lever (176) rotatably mounted over a cruise shaft bracket (188) and capable of being acted upon by biasing and counter-biasing forces along a rotational axis of the cruise control lever (176), the operating mechanism (178) comprising, a first cable (226) and a second cable (228), the first and second cables (226, 228) coupled to LH and RH brake pedals (222, 224), respectively, via their one end and extending to be operatively coupled to a brake actuation linkage assembly (230) via their opposite end, a cable holding member (232) formed to have equilateral triangular ends and coplanarly arranged between the first and second cables (226, 228).

Abstract: An audio equipped fan is disclosed having a housing defining an inner cavity, a motor disposed at least partially in the inner cavity of the housing and having an output shaft extending therefrom that is rotatable by the motor, a fan connected to the output shaft of the motor and rotatable therewith, a grille connected to the housing and positioned in alignment with the fan, the grille having an interior side and an exterior side and defining first openings through which air may flow while the fan is rotated and second openings through which sound may travel, and having a speaker connected to at least one of the housing, motor, fan and grille and aligned on the interior side of the grille with the second openings of the grille so that sound may travel from the speaker through the grille. Related methods are also disclosed.

Abstract: A silencer for an auxiliary power unit of an aircraft comprises an inlet, an outlet, a housing and a flow channel with a porous wall material that is arranged in the housing. An intermediate space is formed between the housing and the flow channel and divided into outer cells that are arranged around the flow channel by means of one or more partitions. This makes it possible to realize a very compact silencer with very good sound insulation properties. The sound dampening can be additionally improved by dividing the outer cells into outer regions and inner regions, by adapting the shape of the silencer to a tail section of an aircraft and by arranging an annular channel on the outlet.

Abstract: A noise attenuator which can reduce time and cost for installation thereof as compared with the conventional configuration and a vehicle air intake duct provided with the noise attenuator are provided. The noise attenuator includes a pair of circular through holes formed through a duct wall, a pair of wave transmitting/receiving membrane which are stretched so as to close the circular through holes, and a seesaw member which connects between central portions of the paired transmitting/receiving membranes. Accordingly, when one of the membranes receives a sound wave of noise thereby to be vibrated at a predetermined frequency, the other membrane follows it and is also vibrated while shifted by a half cycle. As a result, a cancellation wave with a phase opposite to the sound wave received by the one membrane is transmitted from the other membrane, whereupon the noise can be attenuated.

Abstract: A disclosed embodiment provides an acoustic panel having a composite laminate panel having a back sheet layer, a face sheet layer, and a core layer disposed therebetween. The core layer has one or more depressions at an interface between the core layer and the face sheet layer, with the face sheet having a generally uniform thickness across the composite laminate panel. A hole extends through the composite laminate panel at the depressions, and a bolt assembly extends through the hole such that it is countersunk.

Abstract: The invention relates to a sound insulating element for the ceiling area of a building, in particular for rooms subject to increased humidity such as underground parking, and basement rooms, which sound insulating element consists of an insulation element (2) made from mineral fibers bound with a binding agent and having two mutually spaced large surfaces extending parallel to each other, and of a coating (5) from a hydraulically and/or chemically set mass, wherein the coating (5) is connected to the insulation element (2), whereby the coating (5) to be oriented towards the room includes an array of openings (7) forming a regular hole pattern and penetrating the coating (5) as far as to the insulation element (2). The invention moreover relates to a process for producing said sound insulating element.

Abstract: Work platforms are generally discussed herein for providing expanded work space for their users with specific discussions extended to portable work platforms that are mountable on vertical or horizontal poles and the like, such as utility poles, for expanding useful work space. The portable work platform has a deck attached to a base by a beam, which is made from a non-conducting material. A strap assembly having a webbing is connected to the base and configured for use with a ratchet mechanism to tension the webbing around a pole to mount to the platform. The beam enhances electrical isolation between the deck and the base.

Abstract: The present disclosure provides a system of light weight folding stairs, especially lightweight wooden stairs, designed for installation in the ceiling of a building. For example, the light weight ladder-type stair system may be opened downwards and unfolded towards inside the room located under this ceiling. At least one ladder-type stair section is connected to a flap that fits within a frame in an opening in the ceiling, wherein the flap hinges open to access the folded stair sections. The ladder-type stair section is connected to the flap by a hook-type holder that allows installing the frame in a ceiling opening without the flap, which can be easily and quickly attached during final stage of assembly.

Abstract: A ladder climbing apparatus is provided for use with a ladder having a plurality of rungs. The ladder climbing apparatus includes a frame, a prime mover mounted to the frame and a power supply electrically connected to the prime mover. A pulley system is mounted to the frame, and is mechanically connected to the prime mover. At least two drive belts are configured so that each of the drive belts pass around the pulley system, and the drive belts are connected to the prime mover by the pulley system. A plurality of gripper elements are attached to each of the drive belts. The ladder climbing apparatus is configured so that a portion of the plurality of gripper elements are in contact with at least four rungs of the ladder during an ascent or descent, so that weight is distributed over the at least four rungs of the ladder.

Abstract: A cartridge includes a body, a reservoir, a filter, and a tab. The body is configured to be held in a fixed relationship relative to a stem, wherein the body comprises an inlet and an outlet. The inlet is configured to receive a fluid from a surgical instrument via the stem. The outlet is configured to output a first portion of the fluid from the cartridge. The reservoir is configured to receive the fluid from the inlet. The filter is configured to filter the first portion of the fluid as the first portion of the fluid is directed from the inlet, through the filter, and to the outlet. The tab connected to the body and configured to engage with the stem. The tab is configured to, when the cartridge is moved to disengage from the stem, at least one of break away from the body and become functionally inoperable.

Abstract: An industrial truck has a lifting mast and vertically movable load handling device located on the lifting mast. The lifting mast has a lifting height measurement system having a light emitter that emits a light beam, a receiving element, an optical alignment element, a target element, and a measurement path located between them, the length of which measurements path varies with the lifting height. The alignment element and/or the light emitter has a beam-forming optical system, in particular a beam-expanding optical system, so that at the maximum lifting height the reflecting target is inside the expanded light beam of the light emitter in all positions of the allowable maximum bending of the lifting mast.

Abstract: An adjustment device for controlling the electric drive of an elevator in connection with a voltage reduction of the supplying network is disclosed. The electric drive of an elevator includes an electric motor and a power supply apparatus of for adjusting the supply voltage of the electric motor. The adjustment device includes a device configured to control the power supply apparatus and also a speed regulator for adjusting the speed of the electric motor. The adjustment device is arranged to determine the output voltage of the power supply apparatus of the electric motor in relation to the permitted maximum value of the output voltage, and the adjustment device is arranged to interrupt the operation of the speed regulator but to continue the operation of the power supply apparatus of the electric motor when the output voltage of the power supply apparatus of the electric motor reaches the permitted maximum value.

Abstract: In a method, an evacuation state is activated, and the number of people awaiting evacuation on specific floors is determined. At least one of a number of elevator cars and of evacuation times needed for the evacuation of specific floors is calculated based on the capacity of the aforementioned one or more elevator cars and of the number of people awaiting evacuation, and floor-specific evacuation is controlled to one or more exit floors.

Abstract: A lift system comprises a call input device and at least one touchscreen for inputting a call for a lift. The touchscreen has at least one functional identifier. When a functional identifier is touched, at least one input signal is generated. The call input device converts into a special input mode for a time-specific or location-specific generation of several input signals.

Abstract: In an elevator apparatus, a speed governor is disposed in an upper portion of a hoistway, and a tensioning sheave is disposed in a lower portion of the hoistway. A speed governor rope that is moved in response to movement of a car is wound around a speed governor sheave of the speed governor and the tensioning sheave. The tensioning sheave is rotated in response to movement of the speed governor rope. A rotation detector that generates a signal that corresponds to rotation of the tensioning sheave is disposed on the tensioning sheave. Information from the rotation detector is sent to a controlling apparatus. The controlling apparatus detects a position of the car based on the information from the rotation detector.

Abstract: A locking apparatus for a parking brake includes a parking lever, a parking lever spring applying a restoring force to the parking lever, a cylinder of which an oil hole is formed thereto, a piston comprising a piston rod connected to the parking lever and a piston main body disposed within the cylinder, and the piston movable along length direction of the cylinder according to supplying or releasing of oil through the oil hole, a solenoid valve and a locking unit disposed within the cylinder for unlocking the piston when the solenoid valve is supplied electric power and for locking the piston when the solenoid valve is not supplied electric power.

Abstract: A disk brake of a rail vehicle, having a brake caliper, the caliper arms of which are coupled with one end to brake shoes and with the other end to a wear adjuster, the length of the wear adjuster is adjustable by a control mechanism depending on the stroke of a brake force motor. A control rod of the control mechanism acts upon an adjusting element of the wear adjuster, the adjusting element includes a freewheeling mechanism mounted in a housing of the wear adjuster and a stop section of the adjusting element loaded in a self-adjusting starting position against a stop of the housing by at least one return spring element. The stop contains at least one element that is elastic in the direction of abutment.

Abstract: A wear adjuster for a brake caliper of a disk brake of a rail vehicle, having a) a helical gearing which has a threaded spindle and a nut to be screwed thereon as the screw connection elements, one of the screw connection elements and an adjusting element being rotatable in a first wear adjuster housing to rotatingly drive the screw connection element in the wear adjusting direction and the other screw connection element being non-rotatably mounted in a second wear adjuster housing, b) a wrap spring freewheeling mechanism which is blocked in a direction of rotation of the rotatable screw connection element against a wear adjustment and which is freewheeling in the opposite direction of rotation, the wrap spring freewheeling mechanism coupling the rotatable screw connection element to a rotationally fixed element. The rotationally fixed element is formed directly by the first wear adjuster housing.