Abstract: Disclosed is a vibration apparatus for generating a spheroid wavelength by eccentrically rotating a rotation shaft using an eccentric weight.

Abstract: The present invention provides a high-accuracy sliding bearing which eliminates the need for treating a gate mark, has a high accuracy, is excellent in its mechanical strength, and is in its productivity. A sintered metal (2) is used as a bearing peripheral part. A resin material is molded at a sliding portion of the bearing peripheral part to form a resin layer (3). In the resin layer (3), a product of a coefficient of linear thermal expansion of the resin material and a thickness of the resin layer is not more than 0.15. The resin layer (3) is molded through tunnel gates. The resin layer comprises a plurality of axial grooves (4A) and (4B) on a bearing sliding surface thereof, and the tunnel gate marks (5) are alternately formed on a bottom of each of the grooves.

Abstract: A vehicle pedal booster includes a rigid support panel with a rectilinear central region provided with a predetermined thickness and a plurality of anchoring brackets spaced from the support panel and positioned posterior thereof in such a manner that the existing vehicle pedal is intercalated between the anchoring brackets and the support panel. The apparatus further includes a mechanism for maintaining the anchoring brackets and the support panels directly and statically abutted against the existing pedal such that the vehicle pedal booster is prohibited from disengaging the existing vehicle pedal during driving conditions. Such a maintaining mechanism includes a plurality of rectilinear threaded fasteners penetrating through the orifices and engaging the anchoring brackets respectively.

Abstract: A bicycle control device is provided with a lever bracket and an electrical unit. The lever bracket is movably supporting the control lever. The electrical unit is coupled to the lever bracket. The lever bracket includes a bracket body and a bracket lid. The bracket body has a rearwardly located bicycle mounting portion, a control lever mounting portion and a forwardly located unit mounting portion containing the electrical unit. The bracket lid is releasably coupled to a forwardly face of the unit mounting portion of the bracket body to at least partially enclose the electrical unit in the unit mounting portion of the bracket body.

Abstract: In a synthetic resin retainer formed by joining together two annular members by engaging claws of each annular member in engaging holes of the annular member, each of the two annular members 1 has a plurality of hemispherical pockets 4 formed in a side surface thereof to be brought into abutment with the side surface of the other annular member at circumferentially equal intervals. Joint portions are provided between the adjacent pockets 4, and each is provided with an engaging hole 5 and an engaging claw 6. The engaging claws 6 and engaging holes 5 are configured such that gaps are present between the engaging claws 6 and the engaging holes 5 in the initial stage of assembly of the retainer, and the gaps decrease to zero or less upon completion of the assembly of the retainer, thereby preventing wear of the engaging portions of the engaging claws for joining the annular members together.

Abstract: In a rotor bearing arrangement for a balancing machine having a bearing housing (1) which is supported in a radially resilient manner in a highly stiff bearing stand (2) by means of at least two identically configured and arranged spring elements, the spring elements are arranged on opposite sides of the bearing housing (1) so as to be symmetrical about a plane containing the main axis of the bearing and the bearing stand (2) has two supporting arms (11) arranged at a distance from one another, between which the bearing housing (1) is arranged and on which the spring elements are supported.

Abstract: 1. Bearing element (4) for a bearing for borne supporting of a bearing counter-element (2), whereby the bearing element (4) has a bearing segment (40) at which the bearing counter-element (2) is supportably borne with a force component (F) in the direction of the bearing segment (40), and, at least one positioning segment lateral to the bearing segment (40) for positioning the bearing element (4) at a wall (32) of the bearing for fixing and/or orienting the bearing element (4) in the bearing, whereby aligning and/or support elements (41, 42) project laterally from the bearing segment (40), whereby the aligning and/or support elements (41, 42) are physically distanced from each adjacent aligning and/or support element (41, 42), and whereby the aligning and/or support elements (41, 42) distanced from the bearing segment (40) each embody at least one positioning segment (43, 44).

Abstract: A quick release coupling device for a linear guideway comprises a rail, a slide block, a pair of end caps and a pair of connectors. Each of the end caps has a through hole in which are annularly arranged a slant rotary abutment surface and a plurality of grooves. The connectors each has an end fixed to the slide block, and another end of the connectors is defined with a wing-shaped portion, the wing-shaped portion has an abutment surface for mating with the rotary abutment surface of the end caps.

Abstract: A manipulator for supporting and displacing an object comprises a base. A moving portion supports the object. Two articulated mechanisms each having five rotational joints between links, with each articulated mechanism being connected to the base by two of the rotational joints. The moving portion is connected to both the articulated mechanisms by moving-portion joints. The articulated mechanisms and moving-portion joints are arranged with respect to each other between the base and the moving portion so as to constrain movement of the moving portion to displacements in two translational degrees of freedom and two rotational degrees of freedom with respect to the base. Four actuators are each operatively connected to a different one of the rotational joints between the base and the articulated mechanisms so as to selectively control the displacements of the moving portion in any one of the four degrees of freedom of the moving portion.

Abstract: A rotational torque of an electric motor of a starter is transmitted to an output shaft having a pinion gear engaging with a ring gear of an internal combustion engine via a one-way clutch. A tube forming a clutch-inner and the output shaft are spline-coupled to allow the output shaft to reciprocally move in the axial direction while transmitting the rotational torque of the tube to the output shaft. The output shaft is slidably supported by a supporting portion formed at a front end of the tube. To establish air communication between an inside space of the tube and an outside space, an air passage is formed either in the supporting portion or on the output shaft. Pressure changes in the inner space due to reciprocal movement of the output shaft are suppressed by air communication through the air passage, and lubricant in the tube is well retained therein.

Abstract: A compliant gear assembly includes a gear ring positioned about a hub and configured to translate responsive to a torque on the gear assembly, and biased toward co-axial alignment with the hub via at least one actuator. A method of managing loads on an idler gear in the gear train is still further provided including translating the gear ring responsive to the torque on the idler gear. A work machine includes an engine having a housing and a geartrain mounted thereon, the geartrain including a crank gear, a cam gear and a compliant idler gear assembly.

Abstract: Apparatus for automatically adjusting yoke clearance in a steering device in a rack-pinion type steering device.

Abstract: A fluid dynamic bearing is provided. A structure in which a shaft member and an annular member fitted about the shaft member are rotatably supported by a bearing member and an annular member on the bearing member has a fifth gap for storing a lubricating fluid and supplying it to a second gap below the annular member on the shaft member and a third gap around its outer periphery through a fourth gap. The fourth and fifth gaps are tapered to produce a capillary drawing force toward the third and second gaps, so that the lubricating fluid may be supplied effectively from the fifth gap to the second and third gaps. This makes it possible to suppress any sudden formation of a reduced pressure upon exposure to impact or vibration to prevent the leakage of any lubricating fluid caused by the generation of bubbles, while making up for the loss of any lubricating fluid by vaporization.

Abstract: A hydrodynamic bearing device which realizes power saving, reduction of a time period necessary for stabilizing rotation, and enhancement in durability to startup and halting of the motor at the same time by accelerating circulation of a lubricant in the vicinity of a flange with torque loss being kept low is provided. A flange (3) is fixed to one end of a shaft (2). On an inner surface of one of openings of a sleeve (1), a step portion (1C) is provided. When the shaft (2) is inserted into the sleeve (1), the flange (3) is in close vicinity to the step portion (1C). An inner diameter of the step portion (1C) is smaller in end portions in an axial direction than in a central portion. Thus, a gap between an outer surface (3C) of the flange (3) and a surface of the step portion (1C) which opposes the outer surface (3C) is narrow in the vicinity of boundaries of the outer surface (3C) of the flange (3) than in the vicinity the central portion.

Abstract: A rim-shaped section of a teeth section with the same thickness among a bottomland and the same thickness as that of a web. An outward-radial-direction end of the web is connected to an inner end side of the rim-shaped section. In the rim-shaped section, a section from a teeth section connecting section of the web to an outer end of the ring-shaped rim-shaped section is connected to an outer circumferential surface of the boss by a plurality of first radial direction ribs. In the rim-shaped section, a section from the teeth section connecting section of the web to a tooth-width-direction center section is connected to an outward-radial-direction end of second radial direction ribs. The first and the second radial direction ribs are formed thinner than the web and the ring-shaped rim-shaped section.

Abstract: A rolling guide unit as provided here is capable of raising the degree of flexibility in design and simplifying the control of lubricating oil and has a low sliding resistance to the rolling elements. The rolling guide unit is provided with a cylindrical member 2 through which a rail 1 passes for it to slide on, raceway paths a constituted of a combination of the cylindrical member 2 and the rail 1, circuit paths b formed in the cylindrical member 2 and each making interconnection between the two ends of each of the raceway paths a by way of direction-changing recesses 18, and a plurality of rolling elements 19 placed in the circuit paths b and the raceway paths a. The rolling elements 19 circulate in the circuit paths b and the raceway paths a in accordance with the relative movement between the rail 1 and the cylindrical member 2.

Abstract: In a ball circulating groove structure of a ball nut, a deflector is provided with an inner collar extending along a penetrating direction of a hole of the ball nut and engaging with the ball nut in a side of an inner surface of the ball nut, and an outer collar engaging with the ball nut in a side of an outer surface of the ball nut.

Abstract: A guiding device, with high rigidity, for an umbilical member and a robot having the guiding device, by which interference between the umbilical member and another component or external equipment is minimized. The guiding device or an adaptor includes a first plate member fixed to a third wrist element, a second plate member opposing to and parallel to the first plate member, and a connecting member for connecting the first and second plate members. The first and second plate members and the connecting member define a first opening for introducing the umbilical member into the adaptor. The second includes a fixed portion fixed to an end effector and an extended portion extending from the fixed portion and offset from the third wrist axis. A second opening is formed on the extending portion of the second plate member, through which the umbilical member may extend.

Abstract: A linear screw actuator including, an outer housing which is fixed in use, an electric motor within the housing, the motor including a hollow rotatable output shaft, a rotatable but axially fixed nut driven by said output shaft, an elongate hollow axially translatable output member, said output member extending within said output shaft of said motor and cooperating with said rotatable nut, and, an elongate anchor member secured against rotation relative to said housing and extending within said output member, said anchor member cooperating with said output member to hold said output member against rotation whereby rotation of said nut relative to said output member causes axial translation of said non-rotatable output member relative to the housing.

Abstract: A sealing device for a bearing of the hub of a motor vehicle wheel comprising a stationary race (1) and a rotatable race (2), each defining respective channels (6, 7) for the passage of pressurized air. The sealing device (20) is to be mounted between the rotatable race and the stationary race in order to delimit laterally and hermetically seal an annular space or chamber (14) defined between the bearing races (1, 2) and communicating with the channels (6, 7). The sealing device (20) comprises two sealing units (9) axially facing one another. Each sealing unit (9) comprises an annular reinforcement (10) having an axial cylindrical wall (10a) for mounting to a first bearing race (1) and a radial wall (10b) for reinforcing a flexible gasket (11). The two sealing units (9) are coupled by means of an annular element (21) having a plurality of radial air passages (22).