Abstract: A device to support the arm of a user comprises an arm support (10) pivotally attached to a frame member (4), the frame member (4) being mountable or attachable to a chair (1), the device comprising means (4) to allow the support surface (10) to be positionable at user-defined positions above the chair when attached thereto and means (5) to allow the support surface (10) to be positionable in a plurality of user-defined positions to support the forearm of a user whilst undertaking a task. The device may be used in a dentist's chair.

Abstract: An apparatus including an elongate post having a first end and a second end; a clamp coupled to the first end of the post, the clamp including a dimension suitable to couple to a seat frame of a chair; a leg support frame including a first portion pivotally coupled to the second end of the post and a second portion; and a leg support coupled to the second portion of the leg support frame. A method including coupling a leg support assembly to a chair, the leg support assembly including a leg support frame, wherein in a coupled configuration with a chair on a surface, coupling includes coupling such that a first portion of the leg support frame is in contact with the surface.

Abstract: A device for protecting a substantially horizontal top of a piece of furniture from damage by either the back of the lower portion of the legs or the bottom of feet of a person sitting near the piece of furniture includes a cushion having two portion separated by a notch. The first portion of the cushion rests on the substantially horizontal top of the piece of furniture and under the back of the lower portion of the legs or the feet of the person sitting near the piece of furniture. The second portion of the cushion engages the edge of the substantially horizontal top of the piece of furniture.

Abstract: Relaxation chair comprising a flexible support element of the user jointly borne by a back-rest and a seat articulated on one another and mounted movably with sliding on a frame The relaxation chair of the present invention comprises a bearing structure of a flexible support element of the user's body arranged as a seat element and a back-rest element articulated with respect to one another. This bearing structure is guided in sliding on a frame by means of guide rails respectively associated to the seat and back-rest elements. The seat element is for example in the form of a U-shaped frame with a bottom free edge and lateral connecting bars. The seat element comprises an inflection between the bottom free edge and the corresponding articulation end so that the flexible support element is kept at a distance from the bearing structure, above the seat element, including when the user is installed in the chair.

Abstract: A seat comprising a seat portion (2) and a backrest portion (32), the seat portion (2) comprising a seat main portion (4) and a seat insert portion (6), the seat insert portion (6) being such that it fits into a complementarily shaped recess (8) in the seat insert portion (6), the seat insert portion (6) comprising a pair of pads (10, 12) which are positioned so as to be underneath the cheeks of the posterior of a person sitting on the seat portion (2), the seat insert portion (6) comprising a pair of legs (14, 16) which are positioned so as to be underneath the thighs of the person sitting on the seat portion (2), and the seat insert portion (6) being such that it is an inflatable seat insert portion (6) which is able to be inflated and deflated by a user for maximum personal comfort of the user.

Abstract: A device (3) for climate control of a motor vehicle seat (20) with a cushion core (22) for the support of a passenger, having an upper air distribution device (25) at the front side (27) of the cushion core (22) facing the passenger to distribute air along the front side (27) of the cushion core (22), and having a lower air distribution device (32) at its rear side (30) facing away from the passenger to distribute air along the rear side (27) of the cushion core (22), having a connecting device (35) to transfer air between the first and second air distribution devices (25, 32). Each of the three devices (25, 32, 35) has an elongated hollow space (37), and at least one support element (14) in the form of a spiral spring is provided in the air-conducting cross-section of at least one such hollow space (37).

Abstract: There is disclosed an automotive vehicle seating comfort system for providing heating, cooling, ventilation or a combination thereof to an individual in an automotive car seat. The system typically includes an insert, a blower and a tubular structure for providing fluid communication between the insert and blower for providing ventilation and/or cooling for the individual. Preferably, the insert includes a heater or heater layer for providing heat for the individual.

Abstract: In a brake force generator for a vehicle hydraulic brake system having a force input element, which is connectable or connected to a brake pedal and displaceable in a base housing of the brake force generator, a master cylinder, in which a primary piston is displaceably guided for generating a hydraulic brake pressure, a pedal counterforce simulating device connected to the force input element, a pedal actuation detecting device for detecting a pedal actuation, and an actuating force generating device for exerting an actuating force on the primary piston, it is provided that the actuating force generating device comprises a control valve, a chamber arrangement and an electromagnetic actuator, wherein the chamber arrangement is designed with a vacuum chamber and a working chamber, which is separated from the vacuum chamber by a movable wall and is fluidically connectable to the vacuum chamber by the control valve, and wherein the control valve may be activated in accordance with the detected pedal actuation.

Abstract: A method of controlling a trailer brake system using a trailer brake controller positioned within a passenger vehicle is provided. The method includes obtaining intended braking inputs and developing an effective baseline trailer brake controller output profile based thereon. The method scales the effective baseline trailer brake controller output profile in response to an adjustable gain setting set by an operator. The wheel speed is determined at a plurality of wheel locations and vehicle acceleration is calculated. The vehicle acceleration is utilized to selectively choose one of the wheel speed. The vehicle velocity is based on the selectively chosen wheel speed. The vehicle velocity is used to calculate a correction factor to the effective baseline trailer brake controller output profile. The effective baseline trailer brake controller output profile is then adjusted using the correction factor to generate a corrected trailer brake controller output signal.

Abstract: A method is provided for vehicle stability control of a vehicle where the vehicle includes a slip control braking system that applies independent braking pressure to respective vehicle brakes of the vehicle. The vehicle further includes a steer-by-wire assist steering system for applying steering intervention for stability control. The method includes detecting a split-mu braking condition and applying a steering assist torque to the steering system. A determination is made whether a steering wheel angle condition is within a predetermined threshold. An aggressive braking strategy is applied if the steering wheel angle condition is within the predetermined threshold, else applying a non-aggressive braking strategy.

Abstract: A disc brake, especially for utility vehicles, which includes a caliper enclosing a brake disc, a pneumatically or electromotively operated tensioning device for tensioning the brake, which is located in the caliper, a magnet wheel rotating with the brake disc, and a stationary sensor for detecting the angle of rotation and the speed of the magnet wheel. The sensor is mounted at a distance from the magnet wheel and at least one line is connected to transmit pulses between the sensor and the magnet wheel. As a result, the sensor can be mounted on the housing protected from the action of heat and other environmental influences and so as to be easily accessible.

Abstract: An image sending apparatus includes an imaging device configured to capture images of a vehicle, an image recording device configured to record a plurality of image data of the images captured by the imaging device, a priority setting device configured to give a sending priority to the plurality of image data, and an image sending device configured to send the image data to an outside of the vehicle in an order according to the sending priority when a predetermined emergency condition occurs.

Abstract: A system power supply apparatus includes a first constant voltage circuit that generates and increases a voltage up to a first constant level when receiving a first control signal. A second constant voltage circuit is provided to generate and increase a voltage up to a second constant level upon receiving a second control signal. The second constant voltage circuit generates and maintains a voltage at a third constant level lower than the second constant level for a prescribed time period upon receiving a third control signal. A control circuit is provided to input the third control signal to the second constant voltage circuit when the system power supply apparatus starts up.

Abstract: A method for controlling multiple voltages in a power supply includes providing a plurality of DC to DC power converters. Each power converter includes a pulse width modulator controller having a control pin. The method also includes when a voltage supply to the power controllers reads a particular level. After the particular level is met, the method includes providing a respective rising ramp control signal to each respective control pin of the pulse width modulator controller such that each respective power converter generates desired voltage level over time characteristics.

Abstract: A power converter of switched-mode type for providing a voltage to several loads, a first load being of relatively low power with respect to the power of a second load. The converter comprises a circuit for generating cut-off pulses of a D.C. voltage. The converter comprises means for selecting an operating mode from among: a first operating mode in which only the first load of relatively low power is supplied and the circuit for generating cut-off pulses regulates a voltage supplied to the first load; and a second operating mode in which both the first and the second loads are supplied, the circuit for generating cut-off pulses regulates the voltage provided to the second load, the voltage being periodically provided to the first load for a time period which is relatively short with respect to a second time period, during the second time period the voltage is provided to the second load.

Abstract: A semiconductor integrated circuit device operates using a first power supply and a second power supply differing from the first power supply in voltage. The semiconductor integrated circuit device includes a first detecting circuit which detects that the first power supply has exceeded a specific voltage, a second detecting circuit which detects that the second power supply has exceeded a specific voltage, and a check circuit which checks the operating state of an analog circuit carrying out an analog operation using the first power supply and outputs a control signal indicating whether the analog circuit is operating properly. The detecting level of the first detecting circuit is determined on the basis of the control signal. A power-on reset signal is output according to the result of the detection at the first and second detecting circuits.

Abstract: A sampled-data analog circuit includes a level-crossing detector. The level-crossing detector controls sampling switches to provide a precise sample of the output voltage when the level-crossing detector senses the predetermined level crossing of the input signal. The level-crossing detection may be a zero-crossing detection. An optional common-mode feedback circuit can keep the output common-mode voltage substantially constant.

Abstract: A sampled-data analog circuit includes a level-crossing detector. The level-crossing detector controls sampling switches to provide a precise sample of the output voltage when the level-crossing detector senses the predetermined level crossing of the input signal. The level-crossing detection may be a zero-crossing detection. An optional common-mode feedback circuit can keep the output common-mode voltage substantially constant.

Abstract: Disclosed herein is a linear motor in which a plurality of coil groups are connected in series or in parallel and driving power is applied to part or all of the coil groups according to load applied to the linear motor, thereby achieving improved motor efficiency with a reduced motor size. The linear motor includes a bobbin, the plurality of coil groups wound on the bobbin, the plurality of coil groups being connected in series or in parallel to allow the driving power to be applied to part or all of the coil groups, and a magnet adapted to be linearly reciprocated by a magnetic field produced by the coil groups depending on load current flowing through the coil groups. As a result of connecting the plurality of coil groups, which are formed of a plurality of coil conductors, in series or in parallel, the capacity of the coil groups is variable depending on the load of the motor, resulting in improved motor efficiency.

Abstract: An apparatus for dust prevention and cooling of inside of a linear motor is provided. A linear motor 100 includes a tube 110 having an upper opening, a guide wall 112, and stators 140 which are mounted to both sides of the guide wall 112. A mover 150 has coils 160 and moves along a track 130 in the tube 110. The tube 110 are provided with flange sections 120, and two magnetic members 170 are fitted in each of the flange sections 120 to attract both sides of a cover of a steel belt 200. Cooled and dried air is supplied from a cleaning air supplying apparatus 300 into a flow path 122 to achieve cooling and dust prevention of the tube.

Abstract: A pulsed magnetic field is generated by a device having a magnet to be operated in pulse operation which contains at least one superconductive refrigerant-free winding that is disk-shaped or saddle-shaped. Also included is a refrigerating unit which has at least one cold head. A line system, having a refrigerant circulating in it according to a thermosiphon effect, thermally couples the winding to the cold head. The line system has a plurality of separate pipes lying next to one another. The pipes, open onto a common refrigerant distributor and closed at the other end, are thermally coupled to the surface of the disk-shaped or saddle-shaped winding.

Abstract: The present invention relates to a device for the elastic, vibration-damping accommodation of an assembly with respect to a mounting fixed to a frame, having at least one elastic element that is situated between the assembly and the mounting that is fixed to the frame, the assembly having at least one first support surface, and the mounting having at least one second support surface, and the two support surfaces face each other and run transversely, especially at right angles, to the vibrational plane of the vibration and, as seen in the direction of vibration, the elastic element lies in an overlapping position to the support surfaces. It is provided that the two support surfaces have a lateral clearance from each other, and that the first elastic element bridges the clearance in the form of a first free bridge.

Abstract: The invention provides a magnetic-positioning motor having a magnetic element or magnet disposed at the interior center of a rotor, so that attractive force between the magnetic element and a metallic stator can maintain a rotor at a predetermined position during fan rotation. Additionally, a magnetic element or magnet can be placed on a stator, so that attractive force between the magnetic element and a metallic rotor can maintain a rotor at a predetermined position during fan rotation to reduce vibration, flotation and friction between the shaft and bearing under high speed operation.

Abstract: An alternator has a rotor having magnetic poles along a circumferential direction and a cooling fan fixed to an end surface of the rotor in an axial direction. The fan has wing portions disposed along the circumferential direction. One wing portion has a fan base extending on or over first and second magnetic poles, first and second fixing members, respectively, fixing first and second fixing portions of the base to the first and second poles, and a fan blade extending from the fan base toward the axial direction. The base or blade has a boundary portion at which a boundary line between the blade and base crosses over a side line of the second pole, and a first distance between the first fixing portion and the boundary portion is substantially equal to a second distance between the second fixing portion and the boundary portion.

Abstract: The invention relates to a device for the insulation of the stator slots of an electric machine that has a stator having a plurality of stator poles and stator slots located between the stator poles, comprising an insulating body that has moldings adapted to the shape of the stator slots and can be slid onto the stator in an axial direction, and a cover piece that can be connected to an end face of the insulating body, in order after the windings have been applied to the insulating body, to carry the windings (36) at the end face of the stator and to cover them.

Abstract: A rotational electric machine stator has a rectangular wire that includes a lead wire covered with an insulation coating, terminals that is connected to the rectangular wire by thermal fusing, and convex portions provided on the terminals so as to protrude from the terminals toward the rectangular wire, wherein the insulation coating is removed.

Abstract: A brushless motor according to the present invention has a relatively simple structure and its electrical connection parts can be surely connected by an easy work. A board-side connector 28 attached to a circuit board 4 is screw-fixed to a motor cover 21 together with the circuit board 4. A cover-side connector 29 to be fitted to the board-side connector 28 and an external connector connection part 30 connected to the cover-side connector 29 are provided on a board cover 22 by integral molding. When the motor cover 21 and the board cover 22 are fitted and assembled, the board-side connector 28 and the cover-side connector 29 are fitted to each other at the same time, and then a not-shown external connector is connected to the external connector connection part 30, whereby the supply of power and signals from an external part is enabled.

Abstract: The present invention realizes improved workability of electrical connection between an exciting coil and a circuit board disposed in a casing and ensures waterproofing of a connection portion. A waterproof case 25 in which a terminal bar 24 is buried is composed of a large-diameter portion 25a in a hollow bottomed-cylindrical shape and a small-diameter portion 25b around whose outer peripheral surface an O-ring 27 is fitted. A U-shaped end of the terminal bar 24 connected to an end of an exciting coil 7 is positioned in the hollow portion of the large-diameter portion 25a, part of a substantially linear portion extending from the U-shaped end of the terminal bar 24 is buried in the small-diameter portion 25b in an axial direction, and the other portion of the terminal bar 24 protrudes from the small-diameter portion 25b.

Abstract: A brushless motor that is highly waterproof and highly watertight is provided. The brushless motor has a casing 1 configured to incorporate and hold a circuit board 4 and to support a rotor 3 rotatably. The casing 1 is configured such that the first annular wall 21a of a motor cover 21 is secured in part to the inner circumferential surface of the second annular wall 22a of a board cover 22. The first annular wall 21a has an annular groove 21c in its outer circumferential surface. An O-ring 23 is fitted in the annular groove 21c, accomplishing a highly waterproof and watertight sealing between the motor cover 21 and the board cover 22.

Abstract: A motor mechanism includes a stator, a first bearing, a second bearing, a sleeve and a rotor. The stator has an axial hole. The first bearing and the second bearing are respectively disposed in the axial hole. The sleeve is disposed in the axial hole and between the first bearing and the second bearing. The rotor has a shaft disposed in the axial hole and passing through the first bearing, the sleeve and the second bearing.

Abstract: A motor (50) is composed of a rotor (R) having a hub (2) and a ring magnet (8) that is fixed to the hub (2) and a stator (S) having a motor base (5) and a suction ring (11) in an annular shape that is made from a magnetic material and fixed to the motor base (5). The rotor (R) is sustained rotatable freely with respect to the stator (S) through a bearing (SB1, RB11, RB12), which is composed of a sleeve (10) and a shaft (13) that is inserted into the sleeve (10). The suction ring (11) is provided with a plurality of protruded sections (11a) that protrude in a radial direction on an outer circumferential section or an inner circumferential section of the suction ring (11). The protruded sections (11a) of the suction ring (11) are press fitted into a wall section (5e) that is provided on the motor base (5) and resulting in fixing the suction ring (11) to the motor base (5).

Abstract: A magnetic compensation method for a brushless DC motor. The method of magnetic compensation for the motor provides the magnetic element disposed adjacent to the magnetic sensor to compensate the magnetic sensor for an unnecessary magnetic interference, so that the magnetic sensor provides a regular voltage difference to drive the motor.

Abstract: In accordance with one embodiment, the present technique provides a magnetic assembly for an electrical machine having a rotor core. The magnetic assembly includes a magnetic element having a top surface, a bottom surface and at least one side surface located between the top and bottom surfaces, wherein the bottom surface of the magnetic element is couplable to a peripheral surface of the rotor core. The magnetic assembly also includes a ferromagnetic layer disposed on the top surface of the magnetic element. The magnetic assembly further includes an electrically conductive element that circumscribes the magnetic element.

Abstract: There is provided an electric motor that requires reduced manpower for assembling core members and is capable of being assembled in a shorter period of time. A height difference surface 225 on which a circuit board 5 for driving control is mounted is provided between a first inner peripheral surface 222 and a second inner peripheral surface 223, the tip end of a terminal pin 6 is projected in a part of the height difference surface 225, and further a first concave portion 228 formed by recessing the surroundings of the terminal pin 6 in the axis line direction of the terminal pin is provided in the height difference surface 225.

Abstract: A small motor includes: a rotor shaft having a commutator; and a motor brush in contact with the commutator of the rotor shaft. The axis of the motor brush intersects the center line of the rotor shaft at a specified angle other than a right angle. This arrangement enables the motor brush to be brought into contact with the commutator at a wide contact area. This increases the current-carrying capacitor of the motor brush, thus allowing the DC motor to be driven by a large toque without increasing the size of the motor.

Abstract: An electrical hand-held power tool (2) includes an electric motor (4) with a stator (12), and a device (26) for reversing the rotational direction of the motor (4) and which has a contact carrier (28) fixedly securable on the stator housing with a releasable connection element and having field contacts (32) electrically connectable with the stator winding (14), and fixed contacts (42a, 42b) electrically connected with the field contacts (32), with the reversing device (26) also including a brush carrier (30) provided with carbon guides (48) and switching contacts (52a, 52b) electrically connected with the carbon guides (48) and electrically connectable with the fixed contacts (42a, 42b) of the contact carrier (28), the brush carrier (30) being rotatable relative to the contact carrier (28), and the stator housing (16) having an axial stop for the brush carrier (30).

Abstract: A brush device having the longitudinal direction of a coil shaped coil spring aligned with the face of a brush holder, in which one end of a support post at the surface of a brush base is formed as a hollow cylinder and a projection at the other end is insert molded into the brush holder. There is a step on the support post. The step and the brush holder receive a cover plate which, when viewed from a direction perpendicular to the face of the brush holder, covers a winding of the coil shaped coil spring. One end of the support post is fixed to the surface of the cover plate by spreading the end of the hollow cylinder of the support post.

Abstract: The invention relates to an arrangement for holding and/or guiding and applying power to a carbon brush (16, 18) in the direction of a current-transferring commutator (14) comprising a first spring element (20), which acts upon the side of the carbon brush facing away from the contact surface. To ensure that the carbon brush is supplied with the necessary pressure in the direction of the commutator, it is suggested that a second spring element (52, 56, 56), which supplies power to the carbon brush (16, 18) in the direction of the commutator (14), act upon the first spring element (20).

Abstract: A device for axially magnetized electrical machines, especially motors, having a rotor with permanent magnets and a stator with a series of windings on iron cores. The stator comprises a support pin (17), which is integrated or joined with a protruding flange (20), which works as a support for cores (21, 22) with and without windings, which forms teeth. There are at least between some of the cores (21, 22) arranged support elements (25), which are fixed to the hub (18) of the stator.

Abstract: In an axial air-gap electronic motor in which a stator is formed by a plurality of core members, the manpower for assembling the core member is reduced, and the motor is assembled in a shorter period of time. A hook portion 320, which is a first connecting means, is projectingly provided at one end in the circumferential direction of a flange portion 310 of each of the core members 21a to 21i, and a columnar locking shaft 330 to which the hook portion 320 is locked is provided at the other end in the circumferential direction of the flange portion 310, by which the core members 21a to 21i are connected to each other.

Abstract: A gravitational wave generating device comprising an energizing means such as magnetrons, which act upon energizable elements such as film bulk acoustic resonators or FBARs. A computer that controls the magnetrons' phase. A gravitational wave generation device that exhibits directivity and forms a gravitational-wave beam. The utilization of a medium in which the gravitational wave speed is reduced in order to effect refraction of the gravitational wave and be a gravitational wave lens. A gravitational wave generator device that can be directed in order to propel an object by its momentum or by changing the gravitational field nearby the object to urge it in a preferred direction and be a propulsion means.

Abstract: The present invention provides a system for selectively restricting movement of a MEMS device (200). The system of the present invention provides a device comprising movable MEMS device structure (222) and a fixed gate structure (218). A latch structure (248) is formed or otherwise disposed along the MEMS device structure, in proximity to the gate structure. A locking electrode (212) is disposed or formed in proximity to the gate structure, and is adapted to force the latch structure into engagement with the gate structure responsive to an activation signal. Circuitry (202) provides the activation signal to the locking electrode.

Abstract: A mechanical arrangement comprises a housing (10) arranged to receive an elongate member (11) which is mounted within the housing for reciprocation, the elongate member having an extension (11a) projecting outside the housing to form an output member, wherein the elongate member is formed with a shaped aperture (18) which receives an electrically actuated blocking member (19) which controls the stroke of the elongate member as it is moved towards and away from the elongate member in a direction transverse to the direction of reciprocation.

Abstract: A device includes a device substrate defining a pit in a topside of the device substrate, a film bulk-wave acoustic resonator (FBAR) mounted over the pit on the device substrate, a first contact pad on a backside of the device substrate that is coupled to a bottom electrode of the FBAR, and a second contact pad on the backside of the device substrate that is coupled to a top electrode of the FBAR.

Abstract: A method for diagnosing a fuel injection device which includes a piezoelectric actuator, with which a valve element is actuated. The fuel injection device is connected to a diagnostic device by means of which a defined voltage is applied to the piezoelectric actuator. The charge introduced into the piezoelectric actuator, and from that a capacitance of the piezoelectric actuator, are ascertained by means of the diagnostic device.

Abstract: A control apparatus of an ultrasonic motor, comprises a driving wave number determining means for determining a driving wave number based on the targeted displacement of a driven object driven by the ultrasonic motor, a normative driving wave generating means for generating continuously normative driving waves in the number of times determined at the driving wave number determining means, inserted an interval determined based on the targeted velocity of the driven object, every at least one cycle of the normative driving waves, and a driving wave generating means for generating driving waves having the predetermined frequency and the predetermined amplitude based on the normative driving waves generated at the normative driving wave generating means.

Abstract: To provide a drive detection means for a piezoelectric actuator that can detect an amount driven without requiring adding an encoder or other component while also preventing increasing the load. A rotor is disposed eccentrically to the axis of rotation to change the pressure applied from the rotor to a contact part as the rotor is driven. When the pressure changes, the amplitude of the detection signal output from the detection electrode 18 of the piezoelectric element changes in conjunction with rotor rotation, and how much the rotor has been driven can be detected by detecting the amplitude change. Size and thickness can therefore be reduced because providing an encoder, switch, or other component is unnecessary, and current consumption can also be reduced.

Abstract: In a method and a circuit arrangement for operating an ultrasound oscillator with a constant oscillation amplitude wherein an excitation voltage U, whose frequency is disposed outside the resonance frequency of an ultrasound oscillation system, is applied to the ultrasound oscillator which includes components forming therewith an oscillation circuit for generating an excitation current I, whose size is adjusted by changing the frequency of the excitation voltage U to a predetermined value, the level of the excitation voltage U is detected by a voltage sensor and the predetermined value of the size of the excitation current I is set depending on the level of the excitation voltage U.

Abstract: A boundary acoustic wave device includes a dielectric body disposed over one surface of a LiTaO3 piezoelectric body, and an electrode including an IDT and reflectors at the boundary between the piezoelectric body and the dielectric body. The thickness of the electrode is set so that the acoustic velocity of the SH boundary acoustic waves is less than the acoustic velocities of slow transverse waves propagating in the dielectric body and slow transverse waves propagating in the piezoelectric body.

Abstract: A piezo actuator includes a plurality of layers of ceramic material, a plurality of layers of conductive material interspersed between the plurality of layers of ceramic material, and a plate attached to an end of the actuator. The plate of the piezo actuator includes an overhang portion.