Abstract: A lever (60) is for operation via a grip (40). Lever (60) has a transmission member (61) incorporated therein. A mechanism (M1) is for the operation of transmission member (61) via grip (40). A connecting member (10) is assembled with mechanism (M1). Connecting member (10) is fixed to lever (60), having transmission member (61) incorporated therein. Connecting member (10) is mounted to grip (40).

Abstract: A rolling bearing such as a rolling bearing for an alternator of an automobile, the life period of which is prevented from being shortened due to the temporal reduction of a radial internal clearance even in a high temperature environment. The rolling bearing includes a plurality of rolling elements rotatably arranged between an inner race and an outer race, and at least the inner race and the outer race are made of a steel material. An austenite residual rate of the inner race is smaller than an austenite residual rate of the outer race. The amount of dimensional expansion of the outer race due to the martensite transformation of residual austenite is larger than that of the inner race, so that the occurrence of clearance loss is suppressed even when dimensional expansion of the rolling elements occurs.

Abstract: A combined gear change and brake control unit for a bicycle is provided. The unit comprises a support body connected to a brake control lever pivoting around a first axis and a gear change control unit connected to the support body. This control unit comprises a gear change lever pivoting on a second axis, orthogonal with respect to the first axis, for shifting the gear. The gear change lever is arranged immediately behind the brake control lever and is free to oscillate in the same direction as the latter lever to prevent obstructing the brake control movement.

Abstract: A driving unit for a pressure application shaft in a welding apparatus including a housing for housing therein a ball screw mechanism for converting rotation of an output shaft of a motor into reciprocating motion of the pressure application shaft, and a direct acting type rolling guide mechanism provided between the pressure application shaft and the housing. The housing includes a housing body which is opened at one side, and a plate for covering the opened portion. The ball screw mechanism, the pressure application shaft member, the rolling bearing which is fixed to the pressure application shaft member, and a rail combined with the rolling bearing are fixed to the housing body.

Abstract: A wheel bearing assembly is provided which can prevent lowering of the life of a bearing assembly due to entry of muddy water into the bearing assembly through a gap between fitting surfaces of a first inner member and a second inner member. These members are rotatably supported by mounting rolling elements between double-row raceways formed on an inner peripheral surface of an outer member and raceways formed on outer peripheral surfaces of the first and second inner members. A stem formed on the second inner member is inserted into a hole formed in the first inner member, and a tip of the stem is caulked to hold the first and second inner members in a coupled state. An annular groove is formed in an outer periphery of the stem. A seal ring is mounted in the annular groove.

Abstract: A toroidal-type continuously variable transmission includes three trunnions and power rollers in a single cavity. One of the trunnions is shifted by a pair of oil pressure actuators, each of a single-acting type. The remaining two trunnions are respectively shifted by separate oil pressure actuators, each of a double-acting type.

Abstract: A tapered roller bearing comprises: an outer race 12 having a raceway surface 21; an inner race 11 having a raceway surface 20; and a plurality of rolling elements 15 located between the raceway surfaces and formed by third generatrices having a fixed radius of curvature R3 such that the rolling contact surface is convex in the axial direction; and where the center section 20a, 21a of the raceway surfaces 20, 21 is formed by first generatrices having a fixed radius of curvature R1 in an axially concave-shape, and the opposite ends 20b, 21b in the axial direction adjacent to the center section 20a, 21a are formed by second generatrices having a fixed radius of curvature R2 such that they separate from the rolling contact surface of the rolling element 15; and where the radius of curvature R3 of the third generatrices surface satisfies Equation [1] below. R3=s×R1 wherein 0.65≦s≦0.95  Eq. [1].

Abstract: A ball screw shaft, with increased vibration frequency and improved vibration dissipation, having a longitudinal cylindrical internal cavity, closed at its ends by means of inserted terminals or plugs, has in said cavity a filling of granular material with low density and high superficial roughness freely distributed and, moreover, according to a variation of the invention, said longitudinal cylindrical internal cavity has inserted therein a pipe made of composite polymeric material, whose outer surface is made adherent and integral with the inner wall of the longitudinal cylindrical cavity; said pipe having in its longitudinal cavity said filling made of granular material with low density and high superficial roughness.

Abstract: A transfer gear assembly includes a transfer gear rotatably supported directly by a tapered roller bearing and thrust bearing. A tapered snap ring is positioned in a circumferential groove on a hub to provide a preload on the tapered roller bearing and thrust bearing. The tapered roller bearing and thrust bearing each may include only a single race.

Abstract: The fixed shaft type spindle motor of the invention has a fixed shaft vertically installed on a base and a rotor hub supported to freely rotate by the fixed shaft through a bearing. The bearing is composed of a compound ball bearing, and a larger diameter portion of a stepped top-form connection member having the larger diameter portion and a smaller diameter portion is fixedly engaged with the upper end of the outer ring of the compound ball bearing. And, the smaller diameter portion of the connection member is fastened to the rotor hub. The rotary shaft type spindle motor has a rotary shaft vertically installed on the rotor hub, in which the rotary shaft is supported to freely rotate on the base through the bearing. The bearing is composed of a compound ball bearing, and the larger diameter portion of the stepped top-form connection member having the larger diameter portion and the smaller diameter portion is fixedly engaged with the lower end of the outer ring of the compound ball bearing.

Abstract: A ceramic dynamic-pressure bearing having dynamic-pressure grooves. At least a portion including a surface (dynamic-pressure gap definition surface) facing a dynamic-pressure gap is formed of ceramic, and dynamic-pressure grooves GV are formed, by electrolytic etching, on the ceramic dynamic-pressure gap definition surface such that, on a cross section of the groove GV taken perpendicular to the longitudinal direction of the groove GV, a curvature portion R having a radius of 3-7 &mgr;m is formed at a meeting position where a groove sidewall surface SG and a groove bottom surface BG meet. In a preferred embodiment, a large number of pores K are formed on one or more of the rotary surfaces M of the dynamic-pressure bearing formed of ceramic such that the surface porosity falls in the range of 10 to 60%.

Abstract: An improved rolling bearing, in particular one being used in aqueous environment, such as water and steam, comprising an outer race, an inner race, rolling elements, and a retainer holding said rolling elements in a spaced relation from each other, wherein the races of the bearing are made of stellite, the rolling elements are made of hot-isostatic-pressed alumina-zirconia composites, and the retainer is made of poly-ether ether ketone comprising graphite fibers, graphite powder, and polytetrafluoroethylene.

Abstract: A parking assembly 10 is provided for use in combination with a vehicle of the type having a park gear 12 and a shifter or shifting assembly 14 which is operatively used to select between several “gears” or vehicle operating modes. The parking assembly 10 includes a selectively and pivotally movable parking pawl member 20, a park rod assembly 22, and a servo mechanism 24 which selectively actuates park rod 22. The servo mechanism 24 is controlled by use of a controller 30 which monitors several sensors 32, 34 and which allows the park event to be calibrated based upon various selectable vehicle conditions or attributes.

Abstract: A pair of first (14) and second (34) pedal levers is pivotally supported for rotation by a support (12). A pair of adjustment mechanisms (21, 41) interconnect the support (12) and the respective pedal levers (14, 34) and include rods (28, 48) for adjusting the operational position of the pedal levers (14, 34) along the rods (28, 48) between a plurality of adjusted positions. A motor (52) and screw (32) unit is attached to the inner end of each rod (28, 48) for moving the respective pedal levers (14, 34) along the respective rods (28, 48). A controller (56) is programmed to detect a stall of either of the motors (52). The assembly (10) is characterized by the controller (56) having a coordinator (66) to automatically reposition at least one of the motors (52) to a corrected position in response to a stall by at least one of the motors (52).

Abstract: A seal and bearing apparatus for a rotating shaft including a pair of sleeves with two spiral grooves (14) on an inclined surface (16).

Abstract: The single-rod shifting device for a motor vehicle manual transmission, in particular for a six-speed transmission, has a central shifting shaft, fork-shaped shifting elements that engage into sliding bushings, and a locking device. The locking device is equipped with a lever (3, 11) whose rotation point lies on the rotation axis of the axially displaceably mounted central shifting shaft (1) and which is joined to it via a radial entrainment arrangement. Also provided is a blocking part (5) that is arranged immovably in the housing in the shifting direction, as well as a coupling drive that converts the rotation of the lever into a linear motion of the blocking elements (15, 15′ . . . ) on the shifting elements and on the blocking part (5) ensure that upon superposition of the blocking elements in the shifting direction, a shifting of the shifting elements is prevented.

Abstract: Pedal device for rotary attachment to a pedal crank arm of physical training apparatus, e.g. a bicycle, said device comprising a first pedal rotatably attached to a pedal shaft, said pedal shaft at a free end thereof firmly attachable to said crank arm, and said first pedal having a first pedal engagement face for use in carrying out conventional training exercise. Said device is provided with a second pedal tiltably attached to said first pedal about an axis extending transversely through a longitudinal axis of said pedal shaft and parallel to said first pedal face approximately midway between an inner and an outer end thereof. Said second pedal has second pedal engagement face facing away from said first pedal engagement face and spaced from said transversely extending axis, and said second pedal is tiltable to either side relative to said first pedal by an acute angle, e.g. in the range 0-35 degrees.

Abstract: Provided is a robot comprising a telescopic-drive mechanism which does not contaminate works in a purified environment such as a clean room, is easy to handle, and requires no cover for covering the telescopic-drive mechanism. A robot comprises: an up-down axis in which a plurality of hollow axis sectional elements telescopically continue; and a telescopic-drive mechanism for driving the up-down axis to be vertically extended or retracted between an extended state in which a tip end of the up-down axis extends with respect to a base end thereof and a retracted state in which the tip end is moved close to the base end, wherein the telescopic-drive mechanism is integrated on one side of the up-down axis without being exposed from the up-down axis.

Abstract: An angle &thgr;, which is formed by an axis of a horizontal roller rotatably attached to a slider and an axis of an inclined roller, is about 60°, and a load-bearing capacity of the horizontal roller is about a half of that of the inclined roller. Accordingly, the load resistance is substantially constant in four directions, i.e., in upward, downward, rightward, and leftward directions irrespective of attachment posture.

Abstract: A rocking bearing is proposed which is low in cost. A raceway is formed on the inner periphery of an arcuate bearing ring. Rolling elements are received in pockets of a retainer provided opposite to the raceway. The bearing ring is formed by pressing a steel plate to reduce the cost and achieve light weight and compactness.