Abstract: System includes a control system used to control operation of a vehicle system as the vehicle system moves along a route. The vehicle system includes a plurality of system vehicles in which adjacent system vehicles are operatively coupled such that the adjacent system vehicles are permitted to move relative to one another. The control system includes one or more processors that are configured to (a) receive operational settings of the vehicle system and (b) input the operational settings into a system model of the vehicle system to determine an observed metric of the vehicle system. The one or more processors are also configured to (c) compare the observed metric to a reference metric and (d) modify the operational settings of the vehicle system based on differences between the observed and the reference metrics.

Abstract: A first train-installed device according to the present invention includes: a memory; and a processor. The processor performs operations. The operations includes: performing wireless communication through an antenna installed at a front of a train; acquiring train information including information indicating a railroad of the train; transmitting a search signal to another train in a neighborhood of the train; when receiving a response signal including train information including information indicating a railroad on which the another train is on-rail, determining whether there is a possibility of a collision between the train and the another train based on the train information; and when there is a possibility of the collision, measuring a distance between the another train and the train by transmitting and receiving a measurement signal and a measurement response signal to and from the second train-installed device.

Abstract: A system for linking alarm data from physically disassociated wireless sensors to a train in motion. The sensor secured to a wheel axle-box of a rail carriage of a train to detect an over temperature alarm to enable a driver to stop the train. If the alarm condition is confirmed as belonging to the train, a Monitor/Relay immediately notes that there is a problem and warns an operator.

Abstract: A system and method for inspecting a railway track a calculating plate cut and/or rail seat abrasion (RSA) based on rail head elevation and crosstie surface elevation measurements and an estimate of rail height.

Abstract: This disclosure teaches a system and method for moving multiple drywalls in tight spaces. A dolly device can comprise a pair of vertical brackets, and a platform. Each of the vertical brackets can comprise a top joint and a bottom joint. The bottom joint can be slideable within the top joint. The platform can mount the vertical brackets. The platform can comprise a front surface and a back surface. The front surface can be slideable within the back surface.

Abstract: A movable container includes an outer shell, a handle tube and a case. A surface of the outer shell includes a first part and a second part, and a height deviation locates between the first part of the surface and the second part of the surface toward a normal direction of the surface. The handle tube is located between the first part of the surface and the second part of the surface, and a part of a handle of the movable container is embedded in the handle tube. The case covers the handle tube and attaches to the surface via an attachment mechanism.

Abstract: A foldable cart frame has a folding mechanism, a connecting seat, two rear legs, and a handle unit. The folding mechanism has a base seat, at least one guiding rod connected to the base seat, a sliding seat slidably disposed on the at least one guiding rod, and a linkage assembly moveably connected to the sliding seat. The connecting seat is movably disposed on the folding mechanism. The two rear legs are disposed on the base seat. The handle unit is moveably inserted through the base seat, is fixedly connected to the sliding seat, and can drive the sliding seat and the connecting seat to move. The two rear legs are driven by the linkage assembly. The foldable cart frame can be folded and expanded conveniently and quickly. The connecting seat and its connecting components can form a stable supporting structure after expanding.

Abstract: A driving system for an automated drive for a motor vehicle includes a steering wheel display with a lighting strip structure. The lighting strip structure of the steering wheel display is luminous in a defined lighting color for a duration which can be modified according to the actuation. The driving system is designed to control the steering wheel display such that the lighting strip structure is luminous in the lighting color over a starting length during the automated drive. Upon approaching an end of the automated drive lying ahead, the driving system determines that the vehicle has approached an end point of the automated drive lying ahead in such a manner that a specified approach condition has been satisfied.

Abstract: A steering column for a motor vehicle includes a steering shaft, mounted rotatably about a longitudinal axis in a steering column housing, and a rotation limiter, and has a smooth and quiet construction of the rotation limiter. The rotation limiter includes two oppositely directed flat spiral springs, which are operatively arranged between a coupling part, disposed in a rotationally secure manner on the steering shaft, and the steering column housing.

Abstract: According to electric power steering apparatuses of these embodiments, power of a motor is secondarily reduced and a torque is amplified by connecting a worm wheel and a steering shaft using a cycloid gear, a weight and a cost of the motor can be reduced, and various reduction ratios can be realized, and a secondary deduction structure can be realized while minimizing a change in the structure of an existing reducer.

Abstract: A steering device includes: an offset correction value storing section to store an offset correction value including a first offset correction value and a second offset correction value, the first offset value being a current value for correcting the first sensed current signal so that a value of a vibration of the electric motor is equal to or smaller than a first predetermined value when the motor rotation speed signal is a first rotation speed, and the second offset value being a current value for correcting the first sensed current signal so that the value of the vibration of the electric motor is equal to or smaller than a second predetermined value when the motor rotation speed signal is a second rotation speed.

Abstract: A machine is disclosed. The machine may comprise a steering device configured to move along a steering position range in response to a force applied on the steering device by a machine operator. The steering device may have at least one soft stop position along the steering position range. The machine may further comprise a biasing member mechanically coupled to the steering device and configured to apply an opposing force that opposes movement of the steering device when the steering device is at or beyond the soft stop position. A magnitude of the opposing force may be sufficiently low such that the machine operator can move the steering device past the soft stop position. The machine may further comprise an electronic control device configured to determine the soft stop position based on one or more operation conditions of the machine.

Abstract: A method for detecting a steering engagement by a driver in a vehicle without a steering wheel sensor system, in which at least one steering sensor associated with a steering system of the vehicle, which sensor is associated either with the steering wheel or with a steering linkage of the vehicle, is used to capture a first application of force into the steering system of the vehicle, in which at least one chassis sensor associated with at least one chassis component of the vehicle is used to capture a second application of force onto the at least one chassis component.

Abstract: An automatic steering control apparatus includes a target-path acquisition unit that acquires a target path that is to be a traveling path of the vehicle, a target-rudder-angle acquisition unit that acquires a target rudder angle that is to be a rudder angle in the vehicle, on the basis of the target path, a sideslip-angle estimation unit that estimates a sideslip angle in the vehicle that is traveling at the target rudder angle, on the basis of the target rudder angle and a vehicle condition of the vehicle, and an automatic steering control unit. The automatic steering control unit performs at least one of stopping of automatic steering control and controlling of a steering-quantity regulation gain for regulating the target rudder angle, when the estimated sideslip angle is equal to or greater than a predetermined value.

Abstract: A control method of a rear wheel steering system prevents a sudden change in a rear wheel steering control amount when an error occurs in a wheel speed sensor. The control method detects an error in wheel speed sensors based on output values of the wheel speed sensors. A vehicle speed is estimated by using output values of remaining normal wheel speed sensors except for an output value of an abnormal wheel speed sensor where an error is detected, when an error in the wheel speed sensor is detected. Rear wheels are steered and controlled based on the estimated vehicle speed.

Abstract: The disclosure relates to a method for analyzing and/or at least partially compensating steering wheel torsional vibrations, particularly during operation of a steering device in a vehicle, wherein at least one sensing signal is acquired and at least one interference characteristic variable which is correlated to the steering wheel torsional vibration is extracted from the sensing signal. It is proposed that during a monitoring time interval a change over time in the interference characteristic variable and a change over time in a wheel frequency which is correlated to a current wheel rotational speed characteristic variable is monitored and said changes are combined in order to analyze and/or to at least partially compensate steering wheel torsional vibrations to form a common evaluation dataset.

Abstract: A wheel knuckle for supporting a wheel of a vehicle includes an upper member for connection to a vehicle suspension system, and a hub for supporting a bearing assembly. A displacement control member is provided for promoting displacement of the upper member towards a front of the vehicle in the event of a frontal collision. The displacement control member comprises a distal end for positioning proximal to a rim of the wheel. The distal end of the control member is disposed at a vertical height which is lower than a rotational axis of the wheel.

Abstract: The tie rod assembly union includes a tube sleeve and a tie rod shaft that extends into the tube sleeve such that the tie rod shaft and the tube sleeve overlap with one another. In the overlapping area, each of the tie rod shaft and the tube sleeve has at least one set of openings. A C-shaped clamp is disposed about the tube sleeve. The clamp has a curved inner surface which engages both tube sleeve halves. The clamp has a first set of apertures which are spaced outwardly from the curved inner surface and a second set of apertures which extend to the curved inner surface. A first fastener extends through the first set of apertures to tighten the clamp onto the tube sleeve. A second fastener extends through the second set of apertures and through aligned openings in the tie rod shaft and tube sleeve.

Abstract: A vehicular lighting system includes a light projecting device disposed at each headlight of a vehicle. The light projecting device is part of the respective headlight. The light projecting device, when operated, projects an animated sequence of visual images or a sequence of visual light patterns on a wall in front of the vehicle. The projected animated sequence of visual images or projected sequence of visual light patterns is viewable at the wall by a driver of the vehicle. The light projecting device may include a matrix of light emitting diodes. The visual images or visual light pattern projected by the light projecting device, when operated, may change as distance between the vehicle and the wall decreases.

Abstract: The present invention relates to a method for collision avoidance for a host vehicle, the method comprising: detecting a target in the vicinity of the vehicle; determining that the host vehicle is travelling on a collision course with the target; detecting a user initiated steering action for steering the vehicle towards one side of the target; determining a degree of understeering of the host vehicle; when the degree of understeering exceeds a first understeering threshold, controlling a steering control system of the vehicle to counteract the user initiated steering action to thereby reduce the degree of understeering. The invention further relates to an evasive steering system.

Abstract: A suspension sub frame structure comprises a suspension sub frame provided to extend in a vehicle longitudinal direction and supporting a suspension link, an extension frame provided to extend forwardly from a front end of the suspension sub frame and having lower rigidity against a load applied in the vehicle longitudinal direction than the suspension sub frame, and a cross member provided to extend in a vehicle width direction on an inward side, in the vehicle width direction, of the both frames, wherein the cross member is joined to the both frames at a joint area which is continuous in the vehicle longitudinal direction.

Abstract: A suspension housing which is provided at a front part of a vehicle and to which a suspension is mounted has a first fixed portion and a second fixed portion that are provided at positions separated from each other in a front-rear direction and each fixed to a front frame. The suspension housing further has, at a position between the first fixed portion and the second fixed portion in the front-rear direction, a buckling promoting portion that promotes buckling of the suspension housing when a load is applied from the front frame to the suspension housing in the front-rear direction.

Abstract: Provided is a rear vehicle body structure that includes: a right and left pair of frame members each extending in a front-rear direction and having a damper supporting part; rear wheel wells; a rear floor panel; a rear cross member upper part connecting the right and left pair of frame members to each other on a front side of the damper supporting parts; front side reinforcements provided along a vehicle cabin inner side of each of the rear wheel wells and extending in an up-down direction on the front side of the damper supporting parts; and a reinforcing member mounted on each of the frame members and having a reinforcing member main body that reinforces the damper supporting part and a reinforcing member coupling part that couples together the rear cross member upper part and the front side reinforcement.

Abstract: A panel to be arranged in a vehicle body includes a reinforcing inner panel made of metal and formed by press molding, and a thickening part to partially thicken the reinforcing inner panel by a thickening process. The reinforcing inner panel includes a first surface, a second surface, and a surface edge between the first surface and the second surface, along which the thickening part is provided.

Abstract: A vehicle includes a vehicle body and a reinforcement assembly. The vehicle body has first inner and outer walls that define a cavity and second inner and outer curved walls that define another cavity. The reinforcement assembly includes a plurality of inserts. One insert of the plurality of inserts is at least partially disposed in the cavity defined by the first inner and outer walls and another insert of the plurality of inserts is at least partially disposed in the another cavity defined by the second inner and outer curved walls.

Abstract: An extruded rail assembly including a first multi-channel extrusion having at least two tubular channels connected by a center rib, and having a joining end configured for joining at a predetermined angle to a joining end of a second multi-channel extrusion. The second multi-channel extrusion includes at least two tubular channels connected by a center rib, and having a joining end configured for joining at the predetermined angle to the joining end of first multi-channel extrusion. The joining ends of the first and second multi-channel extrusions are configured such that the center ribs complementarily engage as a joining surface.

Abstract: Provided is a vehicle front portion structure including: a right and left pair of front side members that are disposed on both vehicle width direction sides of a vehicle body front portion and extend along the vehicle front and rear direction; a cross member that is disposed between front end portions of the right and left pair of front side members and interconnects the front end portions in the vehicle width direction; a front-wheel-drive motor that is disposed on the vehicle rear side of the cross member; and a radiator that is disposed on the vehicle rear side of the cross member and on the vehicle front side of the motor and extends along the vehicle width direction and the vehicle up and down direction.

Abstract: A suspension having a first link member that is coupled to a front wheel and a second link member that is located on a rear side of the first link member is mounted to a suspension housing. The suspension housing has a first supporting part that supports the first link member and a second supporting part that is provided on a rear side of the first supporting part and supports the second link member. The front frame has a first fixing portion to which the first supporting part is fixed and a second fixing portion to which the second supporting part is fixed, and the first fixing portion and the second fixing portion are provided at positions different from each other in a vehicle width direction.

Abstract: A vehicle body rear part structure for a vehicle includes a side frame, a subframe disposed below the side frame, and a vehicle body frame member disposed on a middle side in the vehicle body front-rear direction with respect to the subframe. The vehicle body frame member includes: a vertical frame offset outwardly in the vehicle width direction with respect to the subframe; and a lateral frame extending inwardly in the vehicle width direction from the vertical frame. A connecting portion is provided on the subframe. The connecting portion includes: an inclined portion extending while being inclined outwardly in the vehicle width direction, to face the vertical frame; and a widening portion widening inwardly in the vehicle width direction up to a position where the connecting portion linearly extends in the vehicle body front-rear direction from the inclined portion, to face the lateral frame.

Abstract: A lower structure of a vehicle includes front side frames, a vehicle body strength member, a floor panel, and a power supply unit, in which the front side frames are formed to have cross-sectional shapes that open upward at least at rear sections thereof, the power supply unit is disposed below a floor panel, the floor panel includes a pair of reinforcing panel portions which are respectively joined to the rear sections of the front side frames and cover the rear sections from above, and a floor panel main body portion which constitutes a portion other than the reinforcing panel portions, and the reinforcing panel portions are formed to have higher strength than the floor panel main body portion.

Abstract: A disclosed component for a motor vehicle includes a component main body, with at least one reinforcing element integrated in a component matrix of the component main body. At least one reinforcing element may be fastened to the component main body. A disclosed component for a motor vehicle has a high component stability, is able to be manufactured with relatively low production costs and enables integration of functional components. The component includes the reinforcing element as a band with a plastics matrix and embedded unidirectionally oriented continuous fibers. A method for manufacturing such a component is also disclosed.

Abstract: There is disclosed a Service Vehicle storage compartment door alarm system. In an embodiment, the system comprises an alarm pin switch bracket having one or more apertures for mounting the alarm pin switch bracket to a vehicle storage compartment door latch system using existing mounting fasteners and an alarm pin switch mounted to the alarm pin switch bracket, the alarm pin switch adapted to detect movement of the vehicle storage compartment door handle to trigger an alarm signal, the alarm pin switch including a connection point for connecting a signal wire. A plurality of alarm pin switch brackets mounted to a plurality of vehicle storage compartment door latch systems may all be connected via signal wires to a central alarm system for activating an alarm upon detection of movement of any one of the vehicle storage compartment door handles.

Abstract: A reinforcement structure containing: at least one elevation reinforcement profile extending along an elevation direction; at least one transversal reinforcement profile extending along a transversal direction, substantially perpendicular to the elevation direction and at least one compartment panel extending against the elevation reinforcement profile and transversal reinforcement profile; and at least one reinforcement member extending along at least part of the elevation reinforcement profile between the elevation reinforcement profile and the compartment panel, the reinforcement member made of a material having a tensile strength greater than the tensile strength of the material forming the elevation reinforcement profile.

Abstract: A bumper based tire carrier supports a tire and wheel set. The bumper based tire carrier includes a vehicle bumper that is bolted onto a frame of a vehicle. The vehicle bumper includes a hinge. A single bolt slot is incorporated into the hinge. A tire carrier frame is connected to the hinge with a single bolt inserted through the single bolt slot and an end joint of the tire carrier frame. A tire adapter is also connected to the tire carrier frame. The tire adapter is attached to support the tire and wheel set. Furthermore, a locking mechanism is integrated to the vehicle bumper. The locking mechanism fastens the tire carrier frame to the vehicle bumper.

Abstract: An undercarriage configured to support a track chain and to be attached to a machine with an endless track drive includes a first carrier plate attached to the undercarriage, the first carrier plate including a material having a hardness of at least 45 Rockwell Scale C or greater.

Abstract: A track system for traction of a vehicle (e.g., a snowmobile, an all-terrain vehicle (ATV) etc.). The track system comprises a track and a track-engaging assembly for driving and guiding the track around the track-engaging assembly. The track system may have various features to enhance its traction, floatation, and/or other aspects of its performance, including, for example, a lightweight design, enhanced tractive effects, an enhanced heat management capability, an enhanced resistance to lateral skidding (e.g., on a side hill), an adaptive capability to adapt itself to different conditions (e.g., ground conditions, such as different types of snow, soil, etc.; and/or other conditions), an adjustability of a contact area of its track with the ground, and/or other features.

Abstract: In some embodiments, a wear pad comprises a polyurethane pad, a reinforcing member, and at least one first fastener. The polyurethane pad may have a first surface region that is adapted to engage a contact patch between the polyurethane pad and a ground region, the first surface region having a first area. The reinforcing member may be at least partially embedded within the polyurethane pad and have a second surface region that faces the first surface region and to which polyurethane of the polyurethane pad is bonded, wherein a second area of the second surface region is greater than fifty percent of the first area. The at least one first fastener may be associated with the reinforcing member and may be adapted to engage at least one second fastener associated with a grouser plate of a track-type vehicle so as to secure the wear pad to the grouser plate.

Abstract: A personal modular trunk and a modular trunk system employing the personal modular trunk for reducing privacy issues and inconveniences that may arise when a vehicle is shared. The personal modular trunk includes: a trunk body; a first communication unit installed in the trunk body and configured to communicate with a vehicle; a first driving unit installed in the trunk body and configured to transport the trunk body; a first engagement unit installed in the trunk body and configured to engage or disengage with a loading space of the vehicle; and a first control unit configured to control the first communication unit to communicate with the vehicle, control the first driving unit to transport the trunk body toward the vehicle, and control the first engagement unit to engage or disengage with the loading space of the vehicle so that the trunk body is coupled to or separated from the vehicle.

Abstract: A self-centering grille assembly includes a grille having a first chamfer and a second chamfer, a first outboard component including a third chamfer and a second outboard component including a fourth chamfer. An additional alternative embodiment of self-centering grille assembly including a centering bar is also disclosed as are related methods of centering a grille between a first outboard component and a second outboard component on a motor vehicle.

Abstract: A motorized scooter is disclosed that has a computing platform and wireless communications capabilities on board. Some embodiments relate to selecting a wireless communication system for transmitting messages from the motorized scooter. Some embodiments relate to detecting intrusion into a compartment of the scooter and responding to the detected intrusion. Some embodiments relate to detecting theft of the scooter and responding to the detected theft.

Abstract: A footrest is provided for a child riding on a tricycle. The footrest has a housing having a foot platform and a retaining assembly. The foot platform has a top surface and a bottom surface, wherein the top surface is adapted to receive a foot of the user. The retaining assembly is adapted to separately engage one of a fork of the tricycle, a fender for the front wheel of the tricycle, and a crank of the tricycle. Additionally, the footrest does not engage the tricycle body extending between the front fork and the rear wheels of the tricycle.

Abstract: According to one aspect, a control system for providing stable balance control may include an H? controller, a state-feedback circuit, a first feedback loop, and a second feedback loop. The control system may be implemented in a robot as a controller for the robot. The H? controller may receive an input signal and generate a control effort signal. The state-feedback circuit may receive the control effort signal as an input and generate an output signal. The feedback loop may include the H? controller and the state-feedback circuit and may transfer the output signal of the state-feedback circuit back to the input of the H? controller and input a tracking error input signal to the H? controller. The tracking error input signal may be the difference between the output signal of the state-feedback circuit and the input signal.

Abstract: An electric self-balancing vehicle including a top cover, a bottom cover, an inner cover, a rotating mechanism, two wheels, two hub motors, a plurality of sensors, a power supply, and a controller is described herein. The top cover includes a first top cover and a second top cover disposed symmetrically and rotatable relative to each other. The bottom cover is fixed to the top cover and includes a first bottom cover and a second bottom cover disposed symmetrically and rotatable relative to each other. The inner cover is fixed between the top cover and the bottom cover and includes a first inner cover and a second inner cover disposed symmetrically and rotatable relative to each other. The rotating mechanism is fixed between the first inner cover and the second inner cover. The two wheels are rotatably fixed at two sides of the inner cover, respectively. The two hub motors are fixed in the two wheels, respectively. The plurality of sensors is disposed between the bottom cover and the inner cover, respectively.

Abstract: An electric self-balancing vehicle including a top cover, a bottom cover, an inner cover, a rotating mechanism, two wheels, two hub motors, a plurality of sensors, a power supply, and a controller is described herein. The top cover includes a first top cover and a second top cover disposed symmetrically and rotatable relative to each other. The bottom cover is fixed to the top cover and includes a first bottom cover and a second bottom cover disposed symmetrically and rotatable relative to each other. The inner cover is fixed between the top cover and the bottom cover and includes a first inner cover and a second inner cover disposed symmetrically and rotatable relative to each other. The rotating mechanism is fixed between the first inner cover and the second inner cover. The two wheels are rotatably fixed at two sides of the inner cover, respectively. The two hub motors are fixed in the two wheels, respectively. The plurality of sensors is disposed between the bottom cover and the inner cover, respectively.

Abstract: A hydraulic operating device comprises a base member, an operating member, a piston, and a mounting member. The base member includes a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The operating member is pivotally coupled to the base member about a pivot axis. The mounting member is configured to couple the base member to a handlebar. The mounting member includes a mount opening through which the handlebar is to extend. The first hose-attachment hole, the second hose-attachment hole, and the mount opening are provided on a reference plane perpendicular to the pivot axis.

Abstract: A quick release pedal for a bicycle essentially includes a pedal body, a shaft and an outer nut. By lengthening the assembling portion of the shaft, the assembling portion can extend out of the shaft hole of the pedal body, and the outer nut is added and disposed on the assembling portion and can be assembled and disassembled with a pneumatic tool to accelerate assembling or disassembling of the pedal, effectively shortening the assembling man-hour and reducing labor cost. The pedal is assembled from another end of the pedal body, which improves the defects of the conventional operation space being narrow and small, significantly expands the operation space to enable the assembler to perform assembling in a more ergonomic manner, therefore, the assembler will not be fatigued during the assembling process, and the assembling will be smooth, convenient and safe.

Abstract: A quick-mount crank-pedal mechanism for a children bicycle is provided. The quick-mount crank-pedal mechanism is composed of a crank rod, a crank bearing and a pedal. The crank rod and the crank bearing are fitted with each other, and the pedal is coupled to the crank bearing. With the mechanism, the pedal is enabled to be in a usable state quickly without using any tools, and a tip of the crank is effectively protected from puncturing through a carton, thereby reducing potential safety hazards.

Abstract: An electric drive for a bicycle is disclosed. The drive includes an electric motor including an drive shaft, a driven shaft connected in a rotationally fixed manner to a driving gear for coupling to a wheel drive, and a transmission structured and arranged to drivingly connect the drive shaft to the driven shaft. The transmission includes a driven wheel, which is connected in a rotationally fixed manner to the driven shaft in a rotational drive direction, and at least two output gears. The at least two output gears includes a first output gear and a second output gear that each engage with the driven gear offset to one another in a circumferential direction to drive the driven wheel.

Abstract: A velocipede includes a pedal crank for pedals to allow an operator to power the velocipede, and a transmission hub or component that is coupled to the pedal crank by a first chain or belt. The transmission component is located rearward of the pedal crank in the frame of the velocipede, such as under a seat position, and is further connected to a rear wheel at an output of the transmission component by a second chain or belt. The transmission has an output that is coupled to a rear wheel assembly. In some embodiments the rear wheel assembly can be mounted in a swingarm that pivots about a transverse axis defined by the output of the transmission. In some embodiments the rear wheel assembly can include an electric motor to drive a rear wheel.

Abstract: A transmission for a bicycle includes an input shaft (1) which is rotationally fixable to a crankshaft (2), and an output shaft (3) which is rotationally fixable to an output gear. The transmission includes at least three planetary transmissions which are operatively connected to the input shaft and to the output shaft. A single one of the planetary transmissions includes a stepped planetary gear (4) with a first gear teeth section (5) having a first diameter and a second gear teeth section (6) having a second diameter.