Abstract: The ball screw device has a nut having a guide concave groove on the outer-circumferential surface capable of engaging with a rotation restraining member in the circumferential direction, a housing provided with an insertion hole having a retaining concave groove on the inner-circumferential surface capable of engaging with the rotation restraining member in the circumferential direction, the rotation restraining member configured by a shaft-shaped member extending in the axial direction, the rotation restraining member having an outside portion in the radial direction arranged inside the retaining concave groove and an inside portion in the radial direction arranged inside the guide concave groove, so as to be able to slide in the axial direction.

Abstract: Disclosed is an actuator for a parking brake. In accordance with an aspect of the disclosure an actuator for a parking brake includes a motor generating power; a reduction gear portion including a driving gear rotating in association with a drive shaft of the motor, and a sun gear coupled to the drive gear to rotate together; a housing in which the motor and the reduction gear portion are accommodated; and a locking portion configured to limit rotation of the reduction gear portion; wherein the locking portion is further configured to a pair of locking members configured to restrain and release at least a part of a rotation shaft of the sun gear, a plurality of elastic members supporting each of the locking members in a direction of the rotation shaft of the sun gear, an electromagnet member configured to separate the pair of locking members from the sun gear by generating an electromagnetic force when the power is applied.

Abstract: Disclosed is an actuator for a parking brake. In accordance with an aspect of the disclosure an actuator for a parking brake includes a motor generating power; a reduction gear portion configured to transmit the power of the motor to a parking portion implementing the parking braking of a vehicle; a locking portion configured to limit rotation of the reduction gear portion; and a housing in which the motor, the reduction gear portion, and the locking portion are accommodated; wherein the locking portion is configured to a lock gear coupled to the reduction gear portion to rotate together, a lever provided to be engaged with the lock gear through a hinge motion, an elastic member elastically supporting the lever toward the lock gear, and an electromagnet member that generates electromagnetic force when the power is applied to separate the lever from the lock gear.

Abstract: During an operation of applying a parking brake, when sufficient brake clamping force is applied by a brake actuator, a parking lock actuator having a pin is energized to cause the pin to be moved toward a strut so that the strut is engaged with one of notches of a rotatable part operably connected with the brake actuator in order to prevent rotation of the rotatable part in one direction of releasing the brake and to allow rotation of the rotatable part in the other direction of applying the brake, and then the parking lock actuator is de-energized and the pin is moved away from the strut. During an operation of releasing the parking brake, the brake actuator rotates the rotatable part in the brake apply direction to disengage the strut from the notch, and then releases the brake.

Abstract: A braking device for an in-wheel motor may include: a stator; a rotor configured to rotate when power is applied to the stator; a disk interlocked with the rotor; a bracket coupled to the stator and a knuckle; and a caliper mounted on the bracket, and configured to press the disk.

Abstract: Disclosed herein an actuator for a brake device includes a housing including a motor accommodating portion configured to accommodate a motor, and a gear accommodating portion configured to accommodate a reduction device; a power connection unit connected to the motor; and the reduction device connected to the power connection unit; wherein the reduction device includes a first reduction gear unit connected to the power connection unit and a second reduction gear unit connected to the first reduction gear unit, and the first reduction gear unit is provided as a bevel gear assembly.

Abstract: A disk brake that includes, between an internal gear (69) and a first housing portion (19) of a housing (18), each of protrusion portions (105) provided on the internal gear side and engagement recessed portions (44) provided on the first housing side that are engaged with each other to restrict a relative rotation. Each of these protrusion portions on the internal gear side and engagement recessed portions on the first housing portion side are disposed along a direction perpendicular to a straight line connecting a radial center of a second speed reduction gear (67) and a radial center of a first speed reduction gear (54). Due to this configuration, the disk brake can improve the precision of the position of the internal gear of the planetary gear speed reduction mechanism (27) while reducing the cost.

Abstract: A medical device may comprise a sheath configured to be inserted into a body lumen of a patient. A distal end of the sheath may include an elevator for changing an orientation of a medical device. A handle may include an actuator. The actuator may be operably connected to the elevator. Activation of the actuator may cause movement of the elevator. An engaging portion may, in at least one configuration of the handle, protrude from a surface of a handle body toward the actuator. A force exerted by the user on at least one of the actuator or the engaging portion may cause the handle to transition between (a) a first configuration in which the engaging portion interacts with the actuator to inhibit movement of the actuator relative to the engaging portion and (b) a second configuration in which the actuator is movable relative to the engaging portion.

Abstract: An actuator of an electric parking brake is disclosed. According to one embodiment of the present invention, an actuator of an electric parking brake is provided, the actuator including a driving part which generates a rotation force, a first gear part which transmits the rotation force of the driving part, a second gear part including a rotation shaft which receives the rotation force from the first gear part to rotate, and a rotation shaft control part which is disposed at one side of the second gear part on the rotation shaft, provides a degree of rotational freedom to the rotation shaft during braking, and prevents reverse rotation of the second gear part due to a reverse rotation torque by fixing the rotation shaft when the braking is completed.

Abstract: A cable-pull actuation system for a parking brake may have a body which houses an electric motor device. A rod, adapted to operate along an actuation direction, at a first end thereof, an actuation member of a drum brake and/or of a parking brake. A transmission device may operatively connect the electric motor device to a second end of the rod which is translationally integral with a screw. The screw may be engaged with a nut screw rotationally actuated by the transmission device. A pre-loading device may act in contrast on the screw. The pre-loading device may be compressively pre-loaded to exert a pre-load traction on the rod to offset variations of load on the rod. The pre-loading device may be configured to exert a thrust action on the rod following the annulment of axial clearances for an incremental compression of the pre-loading device with respect to the pre-load value.

Abstract: A wheelchair system comprises a wheelchair comprising a seat, one or more first sensors disposed on or within the seat, one or more second sensors configured to communicate with the one or more first sensors and configured to be associated with a user to determine if the user is falling out of the wheelchair, wherein, upon detection that the user is falling out of the wheelchair, the wheelchair is configured to automatically stop.

Abstract: A brake assembly for an electric motor includes: a magnetic body, a winding, a bolt, a housing part with a brake surface, an armature disk, a brake pad plate, a shaft, a spring part, and a first bushing. The housing part is connected to the magnetic body by the bolt, with a positive fit in at least the circumferential direction. The first bushing is accommodated in a second bushing. The spring part supported on the housing part presses the first bushing and/or the second bushing toward the magnetic body. The radial clearance range covered by the armature disk includes the radial clearance range covered by the second bushing, and the axial region covered by the armature disk includes the axial region covered by the second bushing.

Abstract: Aspects of the technology relate to a braking assembly for a lateral propulsion system of a high altitude platform (HAP) configured to operate in the stratosphere. Power is supplied to a propeller assembly as needed during lateral propulsion so that the HAP can move to a desired location or remain on station. When lateral propulsion is not needed, power is no longer supplied to the propeller assembly and it may slowly cease rotating. However, in certain situations, it may be necessary to cause the propeller assembly to stop rotating as soon as possible. This can include an unplanned descent. Rapid braking can avoid the propeller blades from entangling in the envelope, parachute or other parts of the HAP. A reusable brake is employed to prevent uncontrolled rotation of the propeller on descent, or otherwise to prevent the propeller from spinning freely when not being used to propel the HAP laterally.

Abstract: An electric motor bicycle system with an electric motor driven gear adapted to drive a wheel gear coupled to a bicycle hub. The motor driven gear is coupled to the wheel gear with a chain. The chain may be tensioned with one or more tensioners, which allow for a tighter system geometry. The motor may be supported with a bracket adapted to mount to industry standard disc brake mounting interfaces. In some aspects, the motor driven gear is coupled to the disc mounting interface of a wheel hub. In some aspects, the electric motor bicycle system may also have a disc brake system integrated therein.

Abstract: A stylet assembly and method of forming an in vivo image acquiring stylet assembly. The stylet assembly includes an elongate flexible body and an image acquiring device that is supported at a location that is offset from an in vivo facing terminal end of the stylet assembly. A terminal end portion of the stylet assembly is defined by a manipulator that is oriented to extend in a crossing direction relative to a longitudinal axis of the elongate body. The terminal end portion of the stylet assembly is steerable relative to the elongate body and is operable to manipulate positions or adjacent anatomy and/or effectuate guidance of the imaging device relative thereto during use.

Abstract: A method of controlling a brake system that includes a motor and an actuator. The method includes moving the actuator towards a retracted position; activating a timer; monitoring a motor characteristic of the motor and monitoring the timer; and determining the actuator has reached the retracted position after the timer meets or exceeds a predetermined time threshold before the motor characteristic has reached or exceeded a predetermined motor characteristic threshold.

Abstract: A brake caliper comprising: a set of brake pads positioned on each side of a brake disc; a first actuator including a first drive gearwheel driving a first mobile piston pressing against a first portion of brake pad in order to move same; a second actuator including a second drive gearwheel driving a second mobile piston pressing against a second portion of the pad in order to move same, with a mode of operation that is the opposite of that of the first actuator; a first and a second worm screws which are secured to one another and of opposite hand to one another, rotationally driven and capable of translational movement in their longitudinal direction and in mesh with the first and second gearwheels respectively in order to turn these in opposite directions.

Abstract: A mounting wheel (3) for a motor vehicle comprising an internal surface (2) and an external surface (4), the internal surface (2) not being visible when the mounting wheel (3) is mounted on the motor vehicle, and at least one fixing element (7) configured to attach the mounting wheel (3) to the motor vehicle. The fixing element (7) is arranged on the internal surface (2) of the mounting wheel (3) so that the fixing element (7) is not visible when the mounting wheel (3) is mounted on the motor vehicle.

Abstract: A multi-disc brake includes an annular brake coil holder with a wound brake coil, an armature plate with a disc support to which a multiplicity of armature plate discs is fastened. A compression spring brings about a linear spacing of the brake coil holder from the armature plate made of a ferromagnetic material in a braking position of the multi-disc brake and, when current is applied to the brake coil, a released position of the multi-disc brake can be created by attracting the armature plate in the direction of the brake coil holder. The braking effect results from the interaction of the armature plate discs with drive shaft discs on a drive shaft. The brake coil holder area of the brake coil holder and the cross-sectional area of the brake coil are substantially of rectangular single-legged design, and when installing the multi-disc brake, part of the wall of the drive support surrounds the brake coil on two sides and the brake coil holder on one side.

Abstract: An electromechanical brake actuator (102, 202, 302, 402) for a brake, in particular a commercial vehicle disc brake, has an electric motor (106, 206) for generating a drive torque, a cam disc (108, 208, 308, 408) operatively connected to the electric motor (106, 206) and mounted in a rotationally movable manner, and a brake plunger (114, 214, 314) which can be moved along a plunger axis for the actuation of a brake lever (358) of the brake (368). The cam disc (108, 208, 308, 408) and the brake plunger (114, 214, 314) have contact faces which are in contact with one another and slide or roll on one another for the direct transmission of the drive torque between the cam disc (108, 208, 308, 408) and the brake plunger (114, 214, 314).

Abstract: A brake assembly comprising: (a) a caliper including: (i) one or more pistons, (b) one or more rotary to linear actuators that provides an axial force to move the one or more pistons, (c) a motor gear unit in communication with the one or more rotary to linear actuators, the motor gear unit including: (i) a motor; and (b) a motor brake that prevents movement of the motor gear unit, the pistons, or both when the motor is turned off so that a brake apply is maintained, the motor brake including: (i) housing; (ii) an engaging element; (iii) a sleeve, and (iv) a solenoid that is in communication with the sleeve so that when the solenoid moves the sleeve, the engaging element is moved into contact with the housing creating a braking force.

Abstract: A motor vehicle includes at least one hydraulically actuatable wheel braking device and at least one electric drive motor. A method for operating the vehicle includes monitoring a driver behavior upon an emergency braking operation, and activating the hydraulic wheel braking device for generating a hydraulic emergency braking torque when an emergency braking operation is detected. When the emergency braking torque is detected, the drive motor is also operated as a generator in order to generate an additional electrical emergency braking torque.

Abstract: The invention relates to an actuator (1) comprising: a body (4), a first element (5) mounted such that it can move rotatably in relation to said body (4), and a second element (6) mounted such that it can move translatably in relation to said body (4), either the first element (5) or the second element (6) being a screw and the other one being a nut, the nut cooperating with the screw such that a rotation of the first element (5) in relation to the body (4) around an axis of rotation (X) causes the translation of the second element (6) in relation to the body (4) parallel to the axis of rotation (X), a cylinder which is stationary in relation to the first element (5), a piston mounted such that it can move translatably inside the cylinder between a first end position and a second end position, and a cam surface which is stationary in relation to the body (4) and against which the piston is supported such that a rotation of the first element (5) in relation to the body (4) causes a translatory back-and-forth m

Abstract: In one version there is provided a shaft locking assembly for use in an apparatus, to provide motion control and unwanted movement elimination of the apparatus. The shaft locking assembly includes a locking device with a locking shaft having a castellated ring element with castellations. The shaft locking assembly includes a drive shaft and a rotating element disposed around the drive shaft. The shaft locking assembly includes a retaining structure assembly having a side portion with projection members corresponding to the castellations. The shaft locking assembly is in a locked position when the castellations are engaged and interlocked with the projection members, and the shaft locking assembly is in an unlocked position when a shaft engagement device is engaged with the drive shaft and the locking shaft, and actuates the locking shaft, so that the castellations are disengaged and unlocked from the projection members, and rotates the drive shaft.

Abstract: The vehicle brake actuator which includes a screw, a tapped inner casing in mesh with the screw by means of an irreversible connection, an electric motor controlling movement of the screw in relation to the inner casing or of the inner casing in relation to the screw so that said movement actuates a braking element, threaded inner rollers, the inner rollers each being in mesh firstly with the screw and secondly with the inner casing by means of at least one thread, a tapped outer casing, and outer rollers each in mesh firstly with the inner casing and secondly with the outer casing, the outer rollers having at least one thread oriented in the opposite direction to a thread of the inner casing and in the same direction as a thread of the outer casing.

Abstract: A disk brake includes a wear sensor and an adjusting device having an adjusting element in the form of a pressure screw and/or a pressure sleeve. The adjusting element has a recess in which a reset device extends which is rotationally coupled to the adjusting element for resetting the adjusting device. The wear sensor lies at least partially in the recess.

Abstract: The present invention relates to a ring gear and a gear reduction device. The ring gear includes an annular body with a plurality of mounting portions, and a plurality of teeth arranged on an inner circumferential surface of the annular body. The annular body and the teeth are integrally formed from powder metal, and the mounting portions and the teeth are at least partly overlapped in an axial direction of the annular body. The mounting portions are integrally formed with the annular body and the teeth, which results in concentricity between the mounting portion and the teeth being improved and cost of the ring gear being reduced. Furthermore, the mounting portions are overlapped with the teeth, which reduces the axial size of the ring gear.

Abstract: The invention relates to a brake pad mounting of a vehicle disc brake with brake pads (3) arranged in a pad seat (6) on both sides of a radially extending brake disc, with a rigid downholder (7) running transversely over the brake pads (3), and with a leaf spring (9) extending along the downholder (7). Same is supported with its two spring ends against a respective counter bearing on the one side, and on a spring segment arranged between the spring ends against the side of the downholder (7) facing away from the brake pads (3) on the other side. In order to provide a solution to the problem of strong movements of the brake pads in certain driving states, e.g. in the event of strong vibrations of the disc brake, one of the two counter bearings (62A) is situated on a blocking bearing or counter bearing element (60) which can be rotatably moved about an axis (13A) which extends in the circumferential direction of the brake pad (3).

Abstract: In an electric linear motion actuator, while an axially forward load is not being applied to an object by an outer ring member, a preload is applied to a frictionally coupling surface by an elastic member, and, when the axially forward load is applied to the object by the outer ring member, an axial load applied to the frictionally coupling surface decreases by an amount equal to the axially rearward reaction force which the outer ring member receives from the object. The electric linear motion actuator includes a load sensor for supporting, through planetary rollers and a carrier, the axially rearward reaction force. The load sensor is arranged such that any change in magnitude of an axially forward load applied through a snap ring will not affect the value of the axially rearward reaction force detected by the load sensor.

Abstract: A wedge cam brake executes a braking operation by causing proximal end portions of brake arms to press a pair of pad assemblies against both sides of a brake rotor so as to hold it therebetween by means of a cam action of a wedge cam which is caused to move to a braking position along the direction of a rotational axis of a ball screw which is screwed into a ball nut which is provided integrally with the wedge cam as a result of the ball screw being driven to rotate. The wedge cam includes a compression coil spring for pushing to bias the ball nut towards the braking position where the proximal end portions of the brake arms are expanded and a spring holding mechanism for holding the compression coil spring in a biasing force accumulating state.

Abstract: Provided is an electric brake device of which braking control accuracy is improved as a result of hysteresis in a load sensor being appropriately compensated for. The electric brake device includes: a direct load estimator configured to estimate a brake pressing force, using an output of the load sensor; an indirect load estimator configured to estimate a brake pressing force without using the output of the load sensor; and a hysteresis interpolator. When switching is performed between pressure increase and pressure decrease which causes hysteresis in the load sensor, the hysteresis interpolator performs control by use of the load estimated by the indirect load estimator without using the load sensor, in a predetermined range after the switching has been performed.

Abstract: An electronic parking lock actuator includes a driving motor configured to generate a driving force, an output mechanism including an emergency unlocking feature, a reduction transmission mechanism connected between the driving motor and the output mechanism to transfer a driving force generated by the driving motor to output mechanism, a control device electrically connected to the power mechanism for controlling the power mechanism, and a casing receiving all of the driving motor, the output mechanism, the reduction transmission, the controller therein. The casing defines an opening configured to expose the emergency unlocking feature.

Abstract: The electric brake device includes a control device for performing follow-up control such that a braking force estimated value estimated by a braking force estimator follows a given braking force command value. The control device includes an angle-sensorless control function section for determining a phase of phase current of an electric motor irrespective of an actual angle of the electric motor and controlling the electric motor to have a current value that is based on the determined phase of the phase current. The angle-sensorless control function section includes a current phase determination section for determining a current phase that is the phase of the phase current of the electric motor on the basis of a deviation between the braking force command value and the braking force estimated value.

Abstract: A module including a module housing enclosing an electric motor, an output element mounted externally of the module housing, the output element being operably coupled to the electric motor and the module housing including an electrical interface for electrically coupling the motor to one or more components mounted externally of the module housing.

Abstract: An electric linear motion actuator is provided which includes an outer ring member, a rotary shaft, planetary rollers, and a carrier including a disk, and in which the outer ring member is formed with a helical rib, each of the planetary rollers being formed with circumferential grooves in which the helical rib is engaged. When the rotary shaft rotates, the planetary rollers rotate about their axes while revolving around the rotary shaft so that the outer ring member axially linearly moves. The actuator includes thrust roller and retainer assemblies each mounted between one of the planetary roller and the disk of the carrier, and each guided by a raceway, i.e., an end surface of the corresponding planetary roller. The actuator includes a common raceway disk common to all of the thrust roller and retainer assemblies, and mounted between the thrust roller and retainer assemblies and the disk of the carrier.

Abstract: An electric brake device includes: an electric brake being configured such that a shaft is moved forward by diving of an electric motor, and the forward movement of the shaft brings the electric brake into an acting state in which brake friction members are pushed against a brake rotary body so as to suppress rotation of a wheel; and a motor controller being configured to control the electric motor, wherein through a rotation speed control on the electric motor, after the shaft reaches a set position before the electric brake comes into the acting state, the motor controller controls a forward speed of the shaft to be smaller than that before the shaft reaches the set position.

Abstract: A system is disclosed for locking and unlocking a rotatable shaft connected to a drive motor. The system includes a fluid actuated lock piston operable to move between locked and unlocked positions to selectively lock the rotatable shaft to a fixed housing.

Abstract: A disc brake caliper is basically provided with a caliper housing, a brake pad and an intermediate member. The caliper housing defines a slot that is configured to receive a brake rotor. The caliper housing is made of a first material. The brake pad includes a mounting plate. The brake pad is disposed in the slot. The intermediate member is disposed between the caliper housing and the brake pad. The intermediate member is made of a second material having a thermal conductivity that is smaller than a thermal conductivity of the first material.

Abstract: A disc brake including a brake caliper and a brake actuation mechanism having an amplification mechanism for introducing a clamping force, an adjustment mechanism for compensating a lining wear having a torque clutch, a thrust element for transmitting the clamping force onto the brake disc, wherein the thrust element includes an adjustment spindle, and a return mechanism, wherein the amplification mechanism, the adjustment mechanism, the thrust element and the return mechanism are mounted in a functional interacting manner in the brake caliper by way of a rod. The disc brake is further provided with at least one device, which is configured to exert a defined resistant torque on the rotation of the adjustment spindle.

Abstract: A brake piston assembly including a brake piston; a rotary to linear stage mechanism including a spindle and a nut; and a ball ramp assembly including a nut ramp plate and a piston ramp plate. The brake piston includes a piston pocket. The ball ramp assembly is located at a bottom wall of the piston pocket. The ball ramp assembly engages a side wall of the piston pocket so that the ball ramp assembly is maintained in the piston pocket after the ball ramp assembly is assembled in the piston pocket. Rotation of the spindle causes the nut to axially move until the nut directly contacts the nut ramp plate, and further axial movement of the nut causes the nut to move the ball ramp assembly and the brake piston against an inboard brake pad to create a clamp force.

Abstract: An actuator arrangement for a brake, particularly an electric parking brake or an electro-mechanic operating brake with a brake pad-adjustment unit that can be driven by an actuator arrangement. The actuator arrangement comprises: an electric motor, a transmission unit located in a housing, which is coupled to the electric motor and is effectively connected at the output side with the brake pad, adjustment unit, a mechanism for fastening the actuator arrangement at the caliper or at the brake pad, adjustment unit, a plug accept for a connection plug of an electric connection unit, which is electrically connected to the electric motor, the electric motor is encompassed at least partially by an encasement, at which the plug accept is formed in one piece, and/or the fastening mechanism are embodied as a separate exchange part, with fastening openings, and fixed at the actuator arrangement in a torque-proof fashion.

Abstract: An electromechanical brake is capable of quickly releasing braking force and improving braking performance of a vehicle even when a power source breaks down. The electromechanical brake includes a drive unit including: a nut member which is coupled to a piston and moves in an axial direction to allow the piston to move forward and backward; a spindle which is thread-coupled to the nut member and rotates to move the nut member in the axial direction; an electric motor which provides power for rotating the spindle; a friction member which rotates together with the spindle; and an elastic member which stores elastic energy by being deformed when the friction member rotates during the braking operation, and provides elastic restoring force as backward torque to the spindle through the friction member when the braking operation is released.

Abstract: Provided are a compact, highly reliable electric parking brake driving device and an electric parking brake device. This electric parking brake driving device transmits a driving force generated by an electric motor to a parking brake actuator via a speed reduction mechanism, and makes the wheels generate a braking force. A gear body of the electric parking brake driving device is formed by joining a lower body and an upper body. A bracket member is fixed to the lower body, and the electric motor is positioned in the radial direction by engaging with the bracket member. A rubber disk is placed between the lower end surface of the electric motor and the bottom surface of the lower body, and the rubber disk impels the electric motor toward the bracket member in the direction of the rotation axis.

Abstract: An electrohydraulic motor vehicle brake system is provided, having a hydraulic simulator circuit for generating a pedal feedback force, having a cylinder-piston unit and having an electromechanical actuator which acts on the cylinder-piston unit and which serves for generating a hydraulic pressure in at least one brake circuit, having a first fluid path with, arranged therein, a first valve device for the selective fluidic coupling of the cylinder-piston unit to the simulator circuit, and having a second fluid path with, arranged therein, a second valve device for the selective fluidic coupling of the simulator circuit to an unpressurized hydraulic fluid reservoir. Also specified are a ventilation method for a brake system of said type, a testing method for a further electrohydraulic motor vehicle brake system with only a first valve device, and a respective computer program product, with program code means, for carrying out one of the two methods when the computer program is executed on a processing unit.

Abstract: An electric disc brake is disclosed. An electric disc brake comprises a caliper housing configured to include a cylinder at which a piston is installed to be reciprocally movable by a brake hydraulic pressure, an adjuster arranged inside the piston, a pushrod provided inside the cylinder, an actuator configured to decelerate a rotational force according to an activation of a motor to output the decelerated rotational force through an output gear so as to pressurize the piston, and a ramp unit installed inside the cylinder and configured to receive the decelerated rotational force from the actuator to pressurize the pushrod to the piston so as to prevent rotation of the pushrod.

Abstract: A dual-bearing reel, includes a reel body, a handle, a spool, a spool shaft, a friction material an operating portion. The reel body has a first reel body portion and a second reel body portion. The handle is attached to the first reel body portion. The spool is disposed between the first reel body portion and the second reel body portion. The spool shaft is configured to integrally rotate with the spool. The friction material is configured to brake rotation of the spool shaft by frictional force. The operating member is rotatably disposed about the spool shaft in the second reel body portion, a portion of the operating member being exposed from an outer perimeter surface of the second reel body portion, and the operating member is configured to adjust the braking force by the first friction material by being rotated.

Abstract: A light source in a rotary optical encoder can illuminate a pattern on a rotatable shaft and an optical sensor can detect either the light that is reflected or transmitted based on the pattern. A sampling rate of the optical sensor is dynamically adjusted based on a rotational speed of the rotatable shaft. A pulse rate of the light source may also be dynamically adjusted based on the sampling rate of the optical sensor.

Abstract: An electromechanical actuator (EMA) is disclosed. The EMA may comprise an EMA housing, a ball nut extending axially within the EMA housing, a ball screw extending axially within the ball nut, and/or an actuator drive unit (ADU) housing extending axially within the ball screw, the ADU housing having a proximal stop that extends radially outward of the ADU housing. The ball nut may be configured to translate axially in a proximal direction in response to a rotation by the ball screw, and the ball nut may be configured to be halted in the axially proximal translation in response to contact with the proximal stop. The proximal stop may be coupled to the ADU housing. The proximal stop may comprise a continuous annular structure.

Abstract: A method that compensates for fluid pressure variations in a vehicle brake system so that the fluid pressure, brake torque and/or brake force at the wheel more accurately reflects that requested by the driver. In an exemplary embodiment, the method determines the braking intent of the driver, determines a current stage of the braking event (e.g., an apply stage, release stage, etc.), uses the braking event stage and the driver braking intent to select a pressure compensation, and uses the pressure compensation to generate compensated brake command signals for operating the vehicle brake system. This method is well suited for use with brake-by-wire systems, such as an electrohydraulic braking (EHB) system.

Abstract: The invention relates to a disc brake for an aircraft wheel, comprising friction discs (20,30), including rotor discs and stator discs, a structure comprising a torsion tube (11) on which the discs are fitted, a rear plate (12) which is located at one end of the tube, and a support (13) for braking actuators (14,15) at another end of the tube, the actuators being able to be selectively activated in order to apply a pressing force to the discs. According to the invention, the discs are separated into two groups, including a first group (20) which can be used alone for taxiing braking operations, and a second group (30) which can be used alone or in conjunction with the first group for take-off/landing braking operations.