Abstract: It is a cage that is formed of a resin and that holds balls serving as rolling elements. The cage includes an annular base portion, and a plurality of claw portions that are formed to be arranged at constant intervals on the circumference of the base portion and to protrude therefrom. A pocket for accommodating the ball is formed between each pair of adjacent ones of the claw portions. In the resin cage for a ball bearing, thinning recesses are formed in end parts 11a of the claw portions and a rear surface of the base portion, respectively.

Abstract: It is an object of the present invention to provide a bed of a machine tool to be stably leveled and supported by three support points and to reduce the strain of the bed of which structure is simplified. The bed of the machine tool according to the present invention comprises three props and a ceiling 18. The props are arranged as a triangle. The ceiling is put on the props and supports at least one tool box and work saddle. In the triangle in view of horizontal plane, there exists center of gravity of the whole machine tool.

Abstract: A motor controller judges whether or not a duty cycle of a PWM control signal, which is used to open and close a switching element on a power supply line to a motor, is in a current detection permission region. When the duty cycle is in the current detection permission region, an impedance is determined in time series via a calculation based on a predetermined relationship between a current, a terminal voltage, a speed electromotive force, and an impedance of a coil constituting an armature winding, and the output of the motor is controlled so as to reduce the deviation between a current target value and a value corresponding to a detected current. When the duty cycle is not in the current detection permission region, the output of the motor is controlled so as to reduce the deviation between the current target value and a value corresponding to a current determined via a calculation based on the latest determined impedance.

Abstract: In an electric power steering apparatus, a steering torque is detected by a torque sensor, and a motor which generates steering assist power is controlled so that steering assist power is generated in accordance with basic assist torque which corresponds to the detected steering torque. The phase of the output signal of the torque sensor is caused to vary by a phase control element. The phase control characteristic of the phase control element is altered in accordance with the judgment results of a steering state judgment element as to whether the steering state is a return steering state or positive steering state, so that, in the frequency response characteristic of the output to input of the torque sensor, the gain at the higher frequency band where the frequency is greater than a set value is reduced in the return steering state in comparison to the positive steering state.

Abstract: A rocker arm formed of material in a shape of sheet has a pair of side wall portions, a connection portion for a valve stem receiving portion and a connection portion for a pivot receiving portion which interconnect the side wall portions, and an open portion for arranging a roller which is formed between the two connection portions. A distance between outer side surfaces of the pair of side wall portions in the connection portion for the valve stem receiving portion is reduced in a direction from upper edges to lower edges in a step-like shape having two or more step differences, whereby a first outer side surface and a second outer side surface are formed.

Abstract: A vehicle steering apparatus, includes a steering member for rotational operation, a support mechanism that supports the steering member so as to be movable between a housing position where the steering member is housed in a fixed frame of an instrument panel and a projection position where the steering member projects to an outside of the fixed frame, and that regulates an attitude of the steering member located between the housing position and the projection position, and a movable frame that moves together with the steering member, and that constitutes a part of the instrument panel by covering an opening formed in the fixed frame of the instrument panel when the steering member is housed at the housing position.

Abstract: A vehicle steering apparatus includes a steering member for rotational operation, and a support mechanism that supports the steering member so as to be movable between a housing position where the steering member is housed in a fixed frame of an instrument panel and a projection position where the steering member projects to an outside of the fixed frame. The steering member includes a main body supported by the support mechanism, a pair of grip sections which are movable between the housing position and the projection position together with the main body, and which are supported so as to be movable between a nonoperating position and an operating position by the main body, and a grip section drive actuator which is supported by the main body, and drives the pair of grip sections to the nonoperating position and the operating position.

Abstract: The invention concerns a method which includes: filtering the torque signal using a low-pass filter of the first order at a variable cut-off frequency which takes on, respectively, a minimum value or a maximum value depending on whether the amplitude of the torque signal is, respectively, lower or higher than a predetermined threshold; then in producing a signal indicating, respectively, a steering wheel release or a steering wheel grip depending on whether the amplitude of the filtered torque signal is, respectively, lower or higher than a predetermined threshold.

Abstract: An inventive torque detection device includes: a magnetic circuit forming member having a tubular magnet provided at a first rotating body, and a magnetic ring that is located circumferentially of the tubular magnet and rotated together with a second rotating body connected to the first rotating body; a magnetic flux collecting ring part for collecting a generated magnetic flux; a detection part for detecting, based on a density of the collected magnetic flux, a torque applied to the first or second rotating body; and a molded body that is molded at an outer circumferential portion of the first rotating body, and is joined to longitudinal both sides of the tubular magnet so as to fix the tubular magnet to the first rotating body. A molding pressure, generated when the tubular magnet is molded, is applied in the longitudinal direction of the tubular magnet.

Abstract: A bearing device includes: an inner ring member through which a shaft is passed and which is supported rotatably about an axis of the shaft and includes an inner ring raceway surface; an outer ring member arranged concentrically with the inner ring member and including an outer ring raceway surface; a plurality of rollers arranged rollably between the inner ring raceway surface and the outer ring raceway surface; a lubricating path through which lubricant is supplied to at least one of the inner ring raceway surface and the outer ring raceway surface; and a lubricating device which supplies the lubricant to the lubricating path according to rotating speed of the inner ring member about the axis.

Abstract: A motor includes a cylindrical stator. The stator includes a stator core having teeth, which project inwardly in the radial direction, and coils, which are formed by winding a conductive wire onto each tooth with first and second insulators. The first insulator includes a support extending axially from an outer restriction wall. Each of first to third bus bars is supported by the support of the first insulator in a state in which a main portion is exposed. The main portions of the first to third bus bars are thus in contact with ambient air.

Abstract: Plate-shaped projections are provided on a front insulator in such a manner as to project towards a front housing. In addition, projecting pieces are provided on a surface of each projection which confronts an inner circumferential surface of a stator housing. The projecting pieces are provided on each projection in such a manner as to form three rows which are parallel to an inner circumferential direction of the stator housing. Spaces between the respective rows constitute guide paths by which the transition wirings which connect between the coils are disposed on the projection in such a manner as to be spaced apart from each other.

Abstract: An assembly error prevention member includes a first plate portion that is attached to a first tab and a third plate portion that is inserted into a slit. The third plate portion has a blocking portion that inhibits a bolt from being tightened into a bolt hole and a driven portion that moves the blocking portion. The second plate portion has a first end portion connected to the first plate portion and a second end portion connected to the third plate portion. The second end portion is wider than the first end portion.

Abstract: A vehicle motion control device and method computes a size of a using friction circle in each of wheels by multiplying a size of an each wheel friction circle indicating a maximum generating force in each of the wheel tires by a previously computed each wheel using percentage, computes the each wheel tire generating force and the each wheel using percentage indicating a rate with respect to an upper limit value of a ?-using efficiency in each of the wheels, on the basis of a target vehicle body force and moment indicating a target vehicle body longitudinal force, a target vehicle body transverse force and a target yaw moment, and the computed size of the using friction circle, and controls a vehicle motion in such a manner that the computed each wheel tire generating force is obtained on the basis of the computed each wheel tire generating force, thereby minimizing an upper limit of the ?-using efficiency in each of the wheels.

Abstract: A steering shock absorbing apparatus for motor vehicle according to the invention comprises a first universal joint for interconnecting a first end of an intermediate shaft and a steering shaft, and a second universal joint for interconnecting a second end of the intermediate shaft and an input shaft of a steering gear. The intermediate shaft includes a hollow bellows portion having slant convexes and slant concaves alternating with each other. A line interconnecting the joint centers of the first and second universal joints is tilted to the center axis of the intermediate shaft at a predetermined angle. At motor vehicle collision, a bending moment derived from an impact force of the collision is exerted on the intermediate shaft because the line is tilted. As a result, the intermediate shaft is bucklingly contracted at the bellows portion thereof.

Abstract: A cage of the invention is equipped with a first annular portion and a second annular portion that are disposed respectively at both ends in an axial direction, and a plurality of columns which couples the first annular portion and the second annular portion to each other, and which forms a plurality of pockets in which rolling elements are accommodated. The cage is composed of a first body portion and a second body portion that are arranged in the axial direction of the bearing and that are coupled to each other via interlocking columns provided on each of the first and second body portions. At least one of the first body portion and the second body portion has an outer diameter face having recessed therein an oil groove whose base end leads to a corresponding pocket.

Abstract: A superfinishing stone 2 is slid on a rotating subject surface 7 as pressed against the subject surface 7 and is held in contact against the subject surface 7 as vibrated thereon in a different direction from the sliding direction. The superfinishing stone includes plural stone portions 3, 4 divided by a split surface 6 inclined to both the sliding direction and the vibrating direction and mutually independently movable along the split surface 6 and in the pressing direction.

Abstract: In a method of operating an electric motor which drives an auxiliary oil pump for supplying a hydraulic pressure of an ATF to a transmission, only at an idle stop of an engine via a rotation shaft pivotally supported by ball bearings, the electric motor is rotated at a very low speed or in an intermittent manner when an automobile is traveling and the auxiliary oil pump is not used. According to the configuration, the electric motor is slightly rotated during when the automobile is traveling, whereby impressions are prevented from being formed on the ball bearings.

Abstract: A roller bearing apparatus having a fixed bearing ring, a rotary bearing ring, and rolling elements rollably provided between the bearing rings. Piezoelectric elements are provided in the form of a film interposed between the fixed bearing ring and a fixing part to which the fixed bearing ring is fixed so as to detect loads applied between the fixed bearing ring and the fixing part.