Abstract: In a telescopic shaft for vehicle steering, assembled in a steering shaft of a vehicle and including a male shaft and a female shaft so fitted as to be mutually incapable of rotating but mutually slidable, at least one set of torque transmission members are disposed in at least one set of accommodating portions formed in an outer peripheral surface of the male shaft and in an inner peripheral surface of the female shaft, and at least the one set of torque transmission members are cylindrical members that gradually decrease in their diameters toward end portions in an axial direction.

Abstract: In a telescopic shaft for vehicle steering which is installed in a steering shaft of a vehicle and in which a male shaft (1) and a female shaft (2) are fitted to each other to be incapable of mutual rotation and capable of sliding, at least one set of torque transmitting members (7, 8) are interposed between at least one set of grooves (3, 4, 5, 6) formed on the outer peripheral surface of the male shaft and on the inner peripheral surface of the female shaft to be extended in the axial direction to face each other and at least one projection (40) formed to be axially concentric with at least one of the grooves (3, 4) extending in the axial direction on the outer peripheral surface of the male shaft is fitted in at least one of the grooves (5, 6) extended in the axial direction of the female shaft through a gap in the radial direction.

Abstract: An extendable and contractable steering column apparatus includes an outer column through which an inner column is slidably inserted, a lock housing portion formed on the outer column, and a locking mechanism that includes a pair of movable pieces slidably fitted within a bore formed in the lock housing portion. The locking mechanism shifts the pair of movable pieces toward each other so as to press the inner column and shifts the pair of movable pieces away from each other so as to release the pressure on the inner column, in response to swinging of an operating lever. The cross section of the bore of the lock housing portion is non-circular and the cross sections of said pair of movable pieces are also non-circular correspondingly.

Abstract: In a wheel supporting rolling bearing unit, both end openings of a space in which balls 14, 14 are provided are sealed with seal rings 16c, 16d each having two to three seal lips. A rolling resistance that changes based on a preload is regulated in a range of 0.15 to 0.45 N·m, and a total running resistance of both seal rings 16c, 16d based on a friction between the seal lips and counter surfaces is regulated in a range of 0.06 to 0.4 N·m.

Abstract: This invention provides an electric power steering device in which a steering assist force is applied to a steering system of a vehicle using a motor. The electric power steering device includes a first calculating part for calculating a steering assist command value based on a steering torque and a vehicle speed, a drive control part that controls drive of the motor based on the steering assist command value, a second calculating part for calculating a steering assist command limit value based on a source voltage and a motor rotating speed, and a limiting part for limiting steering assist command value based on the steering assist command limit value.

Abstract: In the steering apparatus and feed screw mechanism, by properly adjusting the screw-in distance of a pressing force adjusting screw 77, the arc-shaped contact surface 761 of a pressing member 76 can be pressed against the outer diameter portion 711 of a feed screw shaft 71 with a required pressing force due to the biasing force of a compression coil spring 78. As a result of this, a backlash between a feed nut 73 and feed screw shaft 71 can be removed. Therefore, the telescopic position adjustment and tilt position adjustment of a steering wheel 3 can be carried out smoothly, thereby being able to enhance the rigidity of the steering wheel 3 after execution of the position adjustment thereof.

Abstract: Rolling element holding members have two holding window for holding rolling elements in rolling element running channels formed between both track faces of a rail and a slider. Further, the rolling element holding members are held between two end caps fixed opposite end surfaces of the slider by engagement of four retaining grooves formed on the end caps and opposite end portions of the rolling element holding members.

Abstract: A toroidal-type continuously variable transmission has a casing; an input disk and an output disk rotatably supported concentrically with each other; a plurality of power rollers each held between the input and output disks; a plurality of trunnions disposed at position twisted with respect to a center axis; a drive device for shifting the trunnions in the axial directions or the pivot shafts; a pair of yokes for supporting the pivot shafts of each of the trunnions so as to be swung and shifted in the axial direction thereof, the yokes being swingable according to the shifting movement of the associated trunnion; and, a pair of opposing members each disposed to be opposed to the associated yoke, wherein the yokes each includes projection portion contacted with the associated opposing member, the projection portion being the fulcrum of the swinging movements of the yokes.

Abstract: A rolling bearing with sensor has an inner ring, an outer ring, rolling elements rollably disposed between the inner ring and the outer ring, a sensor provided on one of the inner ring and the outer ring and a detection member provided on the other of the inner ring and the outer ring radially opposed to the sensor which is adapted to be sensed by the sensor. A first retaining member is fixed to the outer ring end surface of the outer ring and retains one of the sensor and the detection member. A second retaining member is fixed to the inner ring end surface of the inner ring and retains the other of the sensor and the detection member. At least one of the inner end surface and the outer end surface is arranged so as to be pressed axially without the sensor or the detection member.

Abstract: Male splines 21 and 23 formed in both the end parts of a torsion bar 5 are fitted and fixed to female splines 22 and 24 formed in an input shaft 2 and an output shaft 3. Further, the number of irregularities of protruding and recessed shaped stoppers 18 and 19 is the same as the number of irregularities of the male splines 21 and 23 formed on the torsion bar 5. The male splines 21 and 23 of both the end parts of the torsion bar 5 have the same phase. Accordingly, even when the torsion bar 5 and both the shafts 2 and 3 are attached to any phase, an angle regulated by the stoppers 18 and 19 when both the shafts 2 and 3 are distorted is substantially the same angle in right and left with respect to a neutral position.

Abstract: It is intended to easily insert rollers into a cage at an approximately optimum insertion angle and in a stabilized attitude, thereby preventing poor insertion of rollers and roller disengagement.

Abstract: To provide a steering apparatus having an excellent operationality and capable of suppressing backlash and preventing an axis deviation of the steering shaft. A line R connecting the centers of two fixing members 16, 17 is shifted with respect to an axis line of an inner column 11, and thus a component Fv of a force transmitted from the fixing members 16, 17 to the inner column 11 via an outer column 21 is applied to press the inner column 11 in a direction orthogonal to the line R connecting the centers of the two fixing members 16, 17. It is, therefore, possible to reduce backlash between the inner column 11 and the outer column 21.

Abstract: Provided are an envelope processor 103, for obtaining an envelope for a detected signal; a FFT unit 104, for converting the envelope into a frequency spectrum; a peak detector 105, for smoothing the frequency spectrum by calculating a moving average, for further performing smoothing and differentiation for the spectrum, and detecting, as peaks, frequency points at which a sign of a differential coefficient is changed from positive to negative, for extracting peaks having a predetermined threshold value or greater, and for sorting the extracted peaks and detecting upper peaks; and a diagnosis processor T, for diagnosing an abnormality based on the detected peaks.

Abstract: A continuously variable transmission apparatus includes a toroidal continuously variable transmission, a planetary gear transmission and a clutch apparatus that connects the toroidal continuously variable transmission and the planetary gear transmission. The clutch apparatus includes: a low speed clutch a high speed clutch and a controller. The controller controls the transmission ratio of the toroidal continuously variable transmission so that rotational speeds of members connected via the clutch apparatus equals with each other, and then disengages the one of the low speed clutch and the high speed clutch after engaging the other, whereby an instance of simultaneously transmitting the power by the two clutches is set during a time period until disconnecting the other clutch after starting to transmit the power by the one clutch.

Abstract: A toroidal-type continuously variable transmission has a casing; a rotary shaft; a pair of outside disks each including an axial-direction one-side surface and supported on the rotary shaft so as to be rotated in synchronization with the rotary shaft; an inside disk including axial-direction two-side surfaces and rotatably supported on the periphery of the middle portion of the rotary shaft so as to be rotated with respect to the rotary shaft; support members disposed between the one side axial-direction surface and the axial-direction one-side surface so as to be swung and shifted about pivot shafts thereof; power rollers rotatably supported on the support members, the peripheral surface of the power rollers being contacted with the axial-direction two-side surface and the axial-direction one-side surface; and ball bearings for supporting the inside disk in such a manner that the inside disk is rotated with respect to the casing.

Abstract: A steering apparatus for a vehicle has a steering column rotatably supporting a steering shaft, a first support member held between opposed flat plate portions of an upper bracket and supporting the steering column, a second support member held between opposed flat plate portions of a lower bracket and supporting the steering column, a first support mechanism for supporting the steering column on the upper bracket, and a second support mechanism for supporting the steering column on the lower bracket, wherein the steering column, the first support member and the second support member are integrally formed, the first support member is integrally formed with a first swelling portion having a pair of side portions that respectively press-abut on a pair of opposed flat plate portions of the upper bracket, and the second support member is integrally formed with a second swelling portion having a pair of side portions that respectively press-abut on a pair of opposed flat plate portions of the lower bracket.

Abstract: An endless belt (11) to be provided on a driven pulley (4b) and a pulley rotation support apparatus for supporting the driven pulley (4b). In the pulley rotation support apparatus, there is used a three-point-contact-type or four-point-contact-type radial ball bearing (14b). An offset quantity ?, which is an axial-direction distance between the center ? of a radial load applied from the endless belt (11) to the driven pulley (4b) and the center position ? of the radial ball bearing (14b), is set 40% or less of the pitch circle diameter of the radial ball bearing (14b). The radial clearance of this radial ball bearing (14b) is set 0.2% or less of the above pitch circle diameter.

Abstract: An object of the invention is to provide an anomaly diagnosis apparatus of a machine installation for eliminating the need for the user to have a dedicated analytical instrument or a skill required for anomaly diagnosis of a sliding member and enabling the user to easily make an anomaly diagnosis request with a small burden and get the diagnosis result promptly. In the invention, an anomaly diagnosis apparatus for analyzing sound or vibration data produced by a machine installation and diagnosing the presence or absence of an anomaly in a sliding member in the machine installation is made up of a diagnosis processing server (1) and a user information processing terminal (3) which are connected through a network (2).

Abstract: An electric power steering apparatus has a steering mechanism SM having universal joints 4, 6 in a torque transmitting system, a steering toque detecting unit 14, a steering angle detecting unit 18, a torque fluctuation detecting unit 43 for detecting a torque fluctuation due to the crossing angle ? in the universal joints 4, 6 on the basis of the steering angle ? detected by the steering angle detecting unit 18 and any one of the steering torque T detected by the steering torque detecting unit, a current command value It and self-aligning torque SAT; and a current command value correcting unit 44 for correcting the current command value on the basis of the torque fluctuation detected by the torque fluctuation detecting unit 43 and the steering angle ? detected by the steering angle detecting unit 18.

Abstract: The metallic mold 90 includes a product configuration portion 93 formed between an upper mold 91 and a lower mold 92. This product configuration portion 93 is composed so that a rolling element accommodating belt 50 formed by this product configuration portion 93 can include spacer portions interposed between balls adjacent to each other in an infinite circulating passage and also include connecting arm portions for connecting the spacer portions to each other and so that the balls can be aligned in the alignment direction in the infinite circulating passage. The upper mold 91 has a splitting structure. In this splitting structure, a splitting position BL is set at a position passing through a position 91t for forming an end portion on the outer circumferential side in the inner and outer circumferential direction of the infinite circulating passage of the spacer portions 51.