Abstract: Pericyclic transmission having at least one input shaft (58) rotatable about an axis of rotation and at least one inclined bearing seat (55, 56) secured to the input shaft with the inclined bearing seat being oriented at an inclination angle with respect to the axis of rotation of the input shaft. An input gear (52, 54) is attached to each inclined bearing seat with the input gear being oriented at the inclination angle and having an axis of rotation inclined to the axis of rotation of the input shaft by the inclination angle whereby upon rotation of the input shaft, the input gear performs at least a nutating motion. The transmission also includes an intermediate gear (51, 53) in mesh with the input gear with the intermediate gear having an axis of rotation coincident with the axis of rotation of the input shaft. The intermediate gear communicates with a transmission output.

Abstract: A motor is provided, and includes: a stator having a plurality of electromagnets and a plurality of rolling elements arranged around the electromagnets; a rotor having a plurality of rotor traction components arranged to engage the plurality of rolling elements; and a control circuit; wherein the plurality of rolling elements are arranged relative to the plurality of rotor traction components to form a gap between the plurality of rolling elements and the plurality of rotor traction components; wherein the control circuit is configured to activate the plurality of electromagnets to cause the rotor to pivot about a pivot point defined in a spherical bearing and change the gap such that the rotor compresses against the stator and the plurality of rolling elements and the plurality of rotor traction components translate the compression into tangential thrust and rotation of the rotor.

Abstract: A brake system is disclosed, including a rotor rigidly connected to a shaft configured to rotate about a central axis. The rotor has a first side opposite from a second side, and the brake system includes a first stator structure on the first side of the rotor and a second stator structure on the second side of the rotor. The brake system further includes a first wobble plate between the first side of the rotor and the first stator structure and a second wobble plate between the second side of the rotor and the second stator structure. Each of the first and second wobble plates is configured to nutate when the first and second stator structures decrease rotation rate compared to the rotation rate of the rotor.

Abstract: A speed reduction apparatus supports a third crown gear that undergoes wave motion. The speed reduction apparatus includes: a first crown gear; a second crown gear; a third crown gear having opposing teeth facing the first crown gear and opposing teeth facing the second crown gear, back to back; and cam units and that cause the third crown gear to undergo wave motion. The cam units and have a first cam on the first crown gear side with respect to the third crown gear, and a second cam on the second crown gear side with respect to the third crown gear. The first and second cams sandwich the third crown gear. A first rolling element between the first cam and the third crown gear is capable of rolling motion, and a second rolling element between the second cam and the third crown gear is capable of rolling motion.

Abstract: A method of sensing an internal temperature of a differential carrier includes providing a differential carrier temperature sensing package with an electronic circuit board having a first temperature sensor that is in thermally conductive contact with a thermal conductor, where the thermal resistance of the package and thermal conductor is given and known as RENC. The package is extended through an opening in a differential carrier that has a fluid in it. The first temperature sensor senses a differential fluid temperature TSNS. The electronic circuit board further has a second temperature sensor, whereby the thermal resistance of the circuit board is a given known resistance RPCB. The second temperature sensor senses an internal package temperature TPCB within the package. Consequently, an internal temperature of the differential is calculated from the equation: TINT=TSNS(1+RENC/RPCB)?TPCB(RENC/RPCB).

Abstract: A transmission includes a first pericyclic motion converter having a first aperture to receive at least a portion of an output shaft and a second pericyclic motion converter having a second aperture to receive at least a portion of the output shaft. A first bearing is positioned between an inner surface of the first pericyclic motion converter defined by the first aperture and an outer surface of the output shaft. A second bearing is positioned between an inner surface of the second pericyclic motion converter defined by the second aperture and the outer surface of the output shaft.

Abstract: An example transmission includes a first pericyclic motion converter to wobble at an angle relative to a first reaction control member and a first output shaft gear. The first pericyclic motion converter having gear teeth to engage a portion of gear teeth at a circumference of the first reaction control member to provide a first gear mesh and to engage a portion of gear teeth at a circumference of the first output shaft gear to provide a second gear mesh. A second pericyclic motion converter wobbles at an angle relative to a second reaction control member and a second output shaft gear. The second pericyclic motion converter having gear teeth to engage a portion of gear teeth at a circumference of the second reaction control member to provide a third gear mesh and engage a portion of gear teeth at a circumference of the second output shaft gear to provide a fourth gear mesh.

Abstract: A knurled press-fitting portion and an annular groove, which receives foreign matter and is formed to extend in a circumferential direction in front of the press-fitting portion of a cylindrical protruding portion, are provided at an outer peripheral surface of the protruding portion of an output shaft. A fitting portion, which is fitted to a coupling tube by press-fitting, is formed at an outer periphery of an opening end of the protruding portion. An outer peripheral surface of the cylindrical fitting portion and an inner peripheral surface of the cylindrical coupling tube coupled to a Z4 gear are fitted and coupled to each other. The annular groove is closed by the fitting portion in a state where the protruding portion and the coupling tube are coupled to each other. The annular groove is configured so as to prevent foreign matter from being discharged toward a bearing gear.

Abstract: A second shaft is configured by a shaft portion extending outside a housing in which a nutation gear mechanism is housed, a housing portion, and a cylindrical portion. A communicating hole, through which an outside and an inside of the housing portion communicate with each other, is formed in the shaft portion. A preload applying mechanism includes a preload adjusting plug that is screwed to the housing portion and is able to be operated from outside through the communicating hole, a wave washer compressed in accordance with a position of the preload adjusting plug, and a lock nut that is screwed to the housing portion of the second shaft so as to press the preload adjusting plug toward the nutation gear mechanism.

Abstract: In a gearing, in particular coaxial gearing, hollow shaft gearing, hypoid gearing, axial gearing or linear gearing, with a driving element (7), an element (3) and an output element (11), a stepping-up and transmission of a driving torque between driving element (7) and output element (11) are to take place via a plurality of movable tooth segments (5).

Abstract: An articulation mechanism for use with a surgical instrument includes a shaft, a first member disposed in mechanical cooperation with the articulation shaft, a second member disposed in mechanical cooperation with the shaft, and a flexible shaft having proximal and distal portions. The flexible member is operatively coupled to the first and second members. Upon rotation of the articulation shaft, at least one of the first and the second members moves longitudinally with respect to the other of the first and second members between a first position where the first and second members are approximated to each other and a second position where the first and second members are spaced apart from each other. This longitudinal motion causes the distal portion of the flexible member to articulate relative to the proximal portion.

Abstract: A kinematism is described with orbital movement with fixed orientation comprising at least one first and one second motion transmitting means, respectively connected to a thrust system and to a driven system, mutually facing and mutually frontally cooperating through respectively a first and a second mechanically cooperating means, at least the first transmitting means rotating around a main rotation axis, the first mechanically cooperating means being adapted to apply a series of points of force to the second mechanically cooperating means so that a set of positions, instant by instant occupied in the space by each one of such points of force, individually considered, substantially describes a Lemniscate curve as Mobius ring, the thrust system being slanted with respect to the main rotation axis and symmetrical and coaxial with a slanted axis around which the curves of such points of force are symmetrically distributed, further comprising rotation-preventing means.

Abstract: A first gear set includes an input member that serves as a first gear and an inner ring that serves as a second gear. A first end of the inner ring is inclined with respect to the input member and is in mesh with the input member. The input member has a plurality of retention grooves that are formed in an input member body and a plurality of pins that are retained in the respective retention grooves and that respectively constitute teeth of the input member. The first end has a plurality of tooth grooves that are engageable with the pins. A resultant force of forces applied to each pin from the retention groove and the tooth groove urges the pin toward the retention groove.

Abstract: In a rolling ball type two-stage low speed changer device 1, empirical formulas are obtained as a relationship between number of first, second, third and fourth lobes z1, z2, z3, z4 of a hypo-based groove 6 (8) and an epi-based groove 7 (9). The relationship is represented by z1>z2, z3>z4, z1?z2=2, z3?z4=2 and z3=n×z2×½ (n: integer), and enables to a precise and smooth rotational transmission without inviting differential slippage and incurring an irregular rotation and uneven torque transmission on an output shaft 16 within the practical usage, and reducing a thickness dimension to render a whole structure compact, achieving a high transmission efficiency without inviting a backlash, and attaining a high torque transmission with low noise.

Abstract: A first gear set includes an input member that serves as a first gear and an inner ring that serves as a second gear. A first end of the inner ring is inclined with respect to the input member and is in mesh with the input member. The input member has a plurality of retention grooves that are formed in an input member body and a plurality of pins that are retained in the respective retention grooves and that respectively constitute teeth of the input member. The first end has a plurality of tooth grooves that are engageable with the pins. A resultant force of forces applied to each pin from the retention groove and the tooth groove urges the pin toward the retention groove.

Abstract: The invention relates to a hinged fitting for two components of a vehicle seat which can pivot with respect to each other about an axis (8). A first gear (1) is fixed on the first pivotable component, and a second gear (3) is fixed on the second pivotable component, and both comprise axially arranged gearing. The first gear (1) can be operatively connected to the second gear (3) by means of a roller chive which can be rotatably driven, wherein the second gear (3) comprises a gear differential with respect to the first gear (1). By means of the roller drive, the first component can swivel with respect to the second component by rolling.

Abstract: A variable speed ratio transmission including a drive element having a spherical frictional engagement surface centered on a primary axis, a carrier having a roller axle orbiting the primary transmission axis spaced from the spherical surface by a predetermined distance, and a roller rotatably and slidably mounted on the roller axle. The roller axle is angled with respect to a tangent of the spherical engagement surface so the roller tends to slide axially along the roller axle toward the frictional engagement surface to frictionally engage the engagement surface when a relative motion between the drive element and the carrier is in an engaging drive direction and to slide axially along the roller axle away from the frictional engagement surface of the drive element to disengage the engagement surface when the relative motion between the drive element and the carrier is in a disengaging drive direction opposite the engaging direction.

Abstract: In the case of a geared fitting (11) for a vehicle seat, in particular for an automotive seat, having a first internal geared wheel (13), a pinion (21) which is driven by an eccentric (15) and meshes with the first internal geared wheel (13), and a second internal geared wheel (31) in which the pinion (21) meshes, the eccentric (15) forms part of an axial clamping (15, 41).

Abstract: Continuously variable speed power transmission with and without integrated motor/generator components. The transmission has an input member rotatable about an input axis, an output member rotatable about an output axis, a reaction control rotor with optional integrated motor/generator components for selective rotation about the input axis, a pericyclic motion converter mounted for pericyclic motion about the input axis, and a control means for selectively adjusting the rate of rotation of the reaction control rotor relative to the input member. A bevel gear construction is a preferred embodiment of the transmission. A method for varying speed ratios using pericyclic motion is described.

Abstract: Continuously variable speed power transmission with integrated motor/generator components. The transmission has an input member rotatable about an input axis, an output member rotatable about an output axis, a reaction control rotor with integrated motor/generator components for selective rotation about the input axis, a pericyclic motion converter mounted for nutational motion about the input axis, and a control means for selectively adjusting the rate of rotation of the reaction control rotor relative to the input member. The continuously variable speed power transmission with integrated motor/generator components can be located in a vehicle wheel hub.

Abstract: A continuously variable speed power transmission includes a rotatable input member, a rotatable output member including a plurality of rearwardly directed output face cams. A reaction control rotor selectively rotatable about the input axis includes a plurality of forwardly directed reaction face cams opposed to the output face cams. A pericyclic motion converter rotatably mounted for nutational motion about the input axis includes a plurality of load transmitting follower members simultaneously engageable with the output face cams and with the reaction face cams. A control mechanism selectively adjusts the rotational rate of the reaction control rotor relative to the input member such that relative rotation between the reaction control rotor and the input member results in both rotation and nutation of the pericyclic motion converter about the input axis resulting in a continuously variable change of ratio of the rotational speed of the output member relative to the input member.

Abstract: A locking differential in which the two side gears comprise end toothings facing one another, and the differential component is a differential disc with end toothings on both faces, with the end toothings on each face co-operating with one of the side gears' end toothings. The number of teeth of each pair of inter-engaging end toothings differs by one, and the ratio of the number of teeth of both pairs of toothings is unequal. The differential disc is mounted to wobble between the side gears so that, by means of diametrically-opposed portions of its two sets of end toothings, it engages the associated sets of end toothings of the side gears. The desired ratios of the numbers of teeth exist if the differential disc is provided with end toothings with identical numbers of teeth, and one side gear comprises a set of end toothings having one tooth fewer (z=n−1) and the other side gear having one tooth more.

Abstract: A nutation motion generator which transforms linear motion into nutation motion. The device employs a spherical, four-bar linkage mechanism. Three four-bar linkage mechanisms are sandwiched between a stationary support surface and a drive plate and arranged at 120.degree. intervals about the support surface. Each four-bar linkage mechanism is constructed of four planar sections which are hinged along their edges, the four hinged planar sections being essentially triangular in shape so that they would join at a point in the center of the device if they extended to the apex of their respective triangles. A universal joint is located at the center of the device to provide stability. The four-bar linkage mechanism can be collapsed to a substantially flatten configuration, opened and then collapsed to a substantially flattened configuration at an angle 90.degree. to that of the first flattened configuration.

Abstract: A transmission 10 includes a drive member 12 which is rotatable about a first axis of rotation 20 and a driven member 14 which is rotatable about a second axis of rotation 26 and which is spaced axially from the drive member 12. The transmission 10 further includes an intermediate member 34 which is positioned between the drive and driven members 12, 14 and which is rotatable about a third axis of rotation 36. A plurality of axially displaceable drive elements 38 is provided for transmitting drive between at least one of the drive member and the intermediate member and the intermediate member and the driven member. The eccentricity of the intermediate member 34 relative to the drive and driven members 12, 14 is adjustable thereby to permit adjustment of the transmission ratio.

Abstract: A speed reducer has simple in structure with a few number of parts and yet can provide a large reduction ratio. Side plates are arranged opposite to each other and are formed on the surfaces thereof opposite to each other with fixed gears. An input shaft is supported by one of the side plates. An input plate having an inclined surface is fixed to the inner end of the input shaft. An output shaft is supported by the other side plate. An output plate is mounted on the output shaft through a universal joint and is kept in contact with the inclined surface of the input plate through a plurality of balls. The output plate is provided with movable gears on both sides thereof near its outer circumference and is swayed in such a way that the teeth of the movable gears are brought into meshing engagement with the fixed gears one after another.

Abstract: The production of differential speed reduction apparatus, which uses a double-toothed gear including face cams having tooth profiles uniquely generated to secure efficient speed reduction. The speed reduction apparatus includes an input shaft carrying the double-toothed gear, a slant shaft wobbling in association with the rotation of the input shaft, a stationary face gear engageable with the face cams, a movable face gear secured to an output shaft, wherein the stationary face gear and the movable face gear have a roller-like or a convex-face contour.

Abstract: The compact high-ratio speed reducer without play consists of an external housing in which a first shaft is rotatingly arranged, carrying a planetary element on which a first gear is loosely supported, this gear having two toothings, one of which is in engagement with a crown wheel integral with the external housing and coaxial with the first shaft, and the second is in engagement with a further gear, integral with a second shaft supported within the external housing and coaxial with the first shaft. The gear toothings are urged together to eliminate possible play between the toothings in mutual engagement.