Abstract: A continuously variable transmission includes a driving member rotating about a first axis, a driven member rotating about a second axis, and an intermediate member interposed between the driving and driven members and rotating about a third axis configured to intersect the first and second axes. The intermediate member transfers torque from the driving member to the driven member. A method for forming a torque transfer member includes providing a base structure, wrapping a needle assembly around the base structure such that the needles extend outwardly therefrom, and affixing the needle assembly to the base structure. A method of manufacturing a needle assembly includes forming a series of pockets on a side of a ribbon, organizing a series of needles into a series of pockets, and affixing the series of needles into the series of pockets.

Abstract: An automated manual transmission for a vehicle may include a shifting section provided with a plurality of shifting units, an input shaft, an output shaft, and a continuously variable power transfer unit disposed between a power providing device and the input and output shafts, wherein the continuously variable power transfer unit includes, a driving conical body selectively engaged to the power providing device, a driven conical body coupled to the output shaft, wherein the driving conical body and the driven conical body have mutual inclination faces correspondingly spaced from each other, and a driving member outer-engaged simultaneously with the mutual inclination faces of the driving conical body and the driven conical body.

Abstract: A continuously variable transmission includes a driving member rotating about a first axis, a driven member rotating about a second axis, and an intermediate member interposed between the driving and driven members and rotating about a third axis configured to intersect the first and second axes. The intermediate member transfers torque from the driving member to the driven member. A method for forming a torque transfer member includes providing a base structure, wrapping a needle assembly around the base structure such that the needles extend outwardly therefrom, and affixing the needle assembly to the base structure. A method of manufacturing a needle assembly includes forming a series of pockets on a side of a ribbon, organizing a series of needles into a series of pockets, and affixing the series of needles into the series of pockets.

Abstract: The aim of the invention is to further develop a bevel friction ring gearing. The invention thus relates to a bevel friction ring gearing in which the friction ring can be displaced by means of an adjusting device that comprises a guide on which an adjusting bridge for the friction ring is arranged in a free axially displaceable manner. The adjusting device comprises a worm-gear drive that engages with the guide.

Abstract: An automated manual transmission for a vehicle may include a shifting section provided with a plurality of shifting units, an input shaft, an output shaft, and a continuously variable power transfer unit disposed between a power providing device and the input and output shafts, wherein the continuously variable power transfer unit includes, a driving conical body selectively engaged to the power providing device, a driven conical body coupled to the output shaft, wherein the driving conical body and the driven conical body have mutual inclination faces correspondingly spaced from each other, and a driving member outer-engaged simultaneously with the mutual inclination faces of the driving conical body and the driven conical body.

Abstract: A friction-ring transmission has a friction ring, a first friction cone including a first friction-ring running surface, a second friction cone including a second friction-ring running surface, and at least one axial friction-ring securing element for preventing critical travel of the friction ring beyond the friction-ring running surface. The friction ring is disposed to be displaceable axially on the friction-ring running surfaces and in a gap between the friction cones, whereby the at least one axial friction-ring securing element is disposed on at least one of the friction cones.

Abstract: In order to absorb loadings on friction faces in bevel friction ring gear mechanisms in an improved manner, the invention proposes a bevel friction ring gear mechanism having at least two friction cones which are arranged spaced apart from one another and a friction ring which is arranged displaceably in the spacing and transmits a torque from one of the two friction cones to the other of the two friction cones, wherein at least one friction face varies axially and the axial variation of the friction face has a radius above 0.1 mm in at least two convex regions.

Abstract: A continuously variable transmission may have a first set of rollers and a second set of rollers that act upon skewed driving and driven surfaces of discs. The input to output ratio of the continuously variable transmission may be changed by pushing either one of the first and second sets of rollers closer to a rotating shaft. To maintain symmetrical loading within the continuously variable transmission, an idler disc assembly may have a strain compensator that deflects to compensate for deflection of outer discs due to elasticity of the main shaft.

Abstract: A drive system suitable for use in a variable transmission with a plurality of rotatable and adjustable disk members, gear means adapted for contact with the plurality of disk members, carriage means for mounting the gear means and configured for axial movement along the axis of a rotatable drive shaft and a rotatable cone adapted for contact with the plurality of disk members, the cone and the conical gear means connected for relative rotation by the plurality of disk members, the disk members being adjustable transversely relative to the axis of rotation for maintaining positive contact with said rotatable cone.

Abstract: A continuously variable speed-changing transmission mechanism of a sheet laminating apparatus includes a control module, a speed changing module, a speed reducing module and a hot press roller module. The continuously variable speed-changing transmission mechanism can laminate a sheet article at a stepless variable speed.

Abstract: A friction type continuously variable transmission including an input side friction wheel drive-coupled to an input shaft, an output side friction wheel drive-coupled to an output shaft, and a friction member pressure-contacting with the input side friction wheel and the output side friction wheel and transmitting motive power with both the friction wheels, wherein a contact position of the friction member with the input side friction wheel and the output side friction wheel is changed to steplessly shift speed of rotation between the input shaft and the output shaft.

Abstract: A continuously variable transmission system comprising an input and output rotational member each with a first circular end and a second circular end is disclosed. The output rotational member is located such that the second circular input member end faces the first output member end and the input and output rotational members share a tangential plane. A first and second idler wheel, attached to an idler shaft, contact the input and output rotational members. The first and second idler wheels and idler shaft are configured to translate rotation from the input rotational member to the output rotational member.

Abstract: A continuously variable transmission may have a first set of rollers and a second set of rollers that act upon skewed driving and driven surfaces of discs. The input to output ratio of the continuously variable transmission may be changed by pushing either one of the first and second sets of rollers closer to a rotating shaft. To maintain symmetrical loading within the continuously variable transmission, an idler disc assembly may have a strain compensator that deflects to compensate for deflection of outer discs due to elasticity of the main shaft.

Abstract: The following steps are performed in the control method: determining a mode of operation from amongst a permanent mode and a transient mode, as a function of a set of variables comprising said estimated values; correcting the value of the speed of rotation of the outlet shaft in such a manner that: if the mode has been determined as being the permanent mode, then the moving average (L?) of the gear ratio (L) over a period (T) of a plurality of unit time intervals lies between a first threshold value (S1) that is negative and a second threshold value (S2) that is positive; and if the mode has been determined as being the transient mode, then said moving average (L?) of the gear ratio (L) lies outside the range of values defined by the first and second threshold value (S1, S2).

Abstract: The invention relates to a mechanical transmission, comprising: a frame; an input shaft with a first friction surface, which shaft is arranged rotatably on the frame; an output shaft with a second friction surface arranged rotatably on the frame parallel to the input shaft; a rotatable body with a third and a fourth friction surface arranged at least for radial displacement on the frame between the input and output shaft; a first push belt arranged between the first and the third friction surface and co-acting therewith; and a second push belt arranged between the second and the fourth friction surface and co-acting therewith, wherein the friction surfaces are rotation-symmetrical, the friction surfaces comprise at least an axial component and at least one of the first and the third friction surface and at least one of the second and the fourth friction surface comprise a radial directional component.

Abstract: A continuously variable transmission (CVT) is suitable for replacement of a main transmission box of a compound transmission in a light to medium duty electromechanically actuated truck transmission system. For example, one line-haul truck transmission consists of a five-speed main section and an auxiliary deep reduction box to provide 15 forward speed ratios. The replacement of the five-speed main section with a CVT unit enhances the overall operating efficiency of the system. In one form, the CVT includes a pair of rotatable countershafts mounted to pivot relative to one another. Each of countershafts has a greater diameter disk at one end than the other. Positioned between countershafts are a pair of laterally spaced cones that share a common axis; the greater diameter disk ends of the two countershafts bear against one of the intermediately positioned cones, while smaller diameter disk ends of the countershafts bear against the second cone.

Abstract: A continuously variable transmission (CVT) is suitable for replacement of a main transmission box of a compound transmission in a light to medium duty electromechanically actuated truck transmission system. For example, one line-haul truck transmission consists of a five-speed main section and an auxiliary deep reduction box to provide 15 forward speed ratios. The replacement of the five-speed main section with a CVT unit enhances the overall operating efficiency of the system. In one form, the CVT includes a pair of rotatable countershafts mounted to pivot relative to one another. Each of countershafts has a greater diameter disk at one end than the other. Positioned between countershafts are a pair of laterally spaced cones that share a common axis; the greater diameter disk ends of the two countershafts bear against one of the intermediately positioned cones, while smaller diameter disk ends of the countershafts bear against the second cone.

Abstract: A continuously variable transmission including a rotatable scroll having an axis of rotation and having upper and lower faces, the upper and lower faces each being conical and each having a pitch, the rotatable scroll being alternately upwardly and downwardly skewable along its axis of rotation, the pitches of the upper and lower faces respectively decreasing and increasing upon upward skewing of the rotatable scroll, the pitches of the upper and lower faces respectively increasing and decreasing upon downward skewing of the rotatable scroll; including upper and lower rotatable wheels, each having an axis of rotation and each having a forward face, each forward face being conical; and including a support frame pivotally and rotatably mounting the upper and lower rotatable wheels with respect to the rotatable scroll, the support frame enabling pivotable motion of the upper and lower rotatable wheels to alternately upwardly and downwardly skew the rotatable scroll, the support frame further enabling the upper a

Abstract: A continuously variable transmission including a rotatable scroll having an axis of rotation and having upper and lower faces, the upper and lower faces each being conical and each having a pitch, the rotatable scroll being alternately upwardly and downwardly skewable along its axis of rotation, the pitches of the upper and lower faces respectively decreasing and increasing upon upward skewing of the rotatable scroll, the pitches of the upper and lower faces respectively increasing and decreasing upon downward skewing of the rotatable scroll; including upper and lower rotatable wheels, each having an axis of rotation and each having a forward face, each forward face being conical; and including a support frame pivotally and rotatably mounting the upper and lower rotatable wheels with respect to the rotatable scroll, the support frame enabling pivotable motion of the upper and lower rotatable wheels to alternately upwardly and downwardly skew the rotatable scroll, the support frame further enabling the upper a

Abstract: A continuously variable transmission has a main shaft rotating about a longitudinal axis. An input disk and output disk are fixed to the main shaft. An idler disk that rotates about and translates along the main shaft is mounted between the input and output disks. A plurality of conical input rollers engage mating surfaces on the input disk and the idler disk. A plurality of output rollers engage mating surfaces on the output disk and the idler disk. The input and output rollers move in planes orthogonal to the longitudinal axis to vary the drive ratio of the transmission. Input gears are connected to rotate coaxially with the input rollers, and output gears are connected to rotate coaxially with the output rollers. The rollers translate relative to the gears. Ring gears engage the input and output gears to input and output power. Alternatively, power can be input or output through one of the rollers.

Abstract: A torque biasing device, based on three friction cones and 2 friction rings, can provide differential outputs from a single mechanical input, by varying the interface of the rings to the cones and a speed matching device based on two cones, a friction ring and a clutch can provide smooth clutching operation for a driven shaft.

Abstract: A continuously variable friction drive transmission for a bicycle is provided by driving the rear bicycle wheel by frictional engagement with a rotating rim driver. The rim driver has a lateral conical surface matching a lateral conical surface of a driver plate. A transmission driver wheel is selectively positioned between the lateral conical surfaces of the rim driver and driver plate. The position along a shifting arm of the transmission driver wheel determines the speed ratios obtained between the driver plate and rim driver. The driver plate is then rotated by the pedal assembly through a speed increasing coupling. The transmission driver wheel is always in contact with the driver plate.

Abstract: This invention relates to friction drive transmissions of the variable or infinite ratio type, having two oppositely tapered shafts, bearing mounted and housed in the same plane and equally spaced apart along their length. A vertical and horizontally mobile rack is mounted between the shafts in a plane parallel but perpendicular to theirs. On the said rack are journaled two intermediary wheels so mounted as to synchronously rotate, slide and cant while one or the other of the intermediary wheels is in contact with the said shafts. Two more intermediary wheels are so mounted as to provide reverse rotation of the output shaft.

Abstract: A biaxial idler comprising a flexible and resilient toroid and a frame. The frame has the capability of allowing the toroid to rotate independently both about the toroid's annular axis and about a straight axis substantially orthogonal to that annular axis. The toroid's outer perimeter can thus roll in a direction parallel to the toroid's straight axis. This biaxial idler is useful in continuously variable transmissions, because it provides a simple and rugged method of transmitting torque continuously across a wide range of varying transmission ratios while suffering minimal frictive losses and wear.

Abstract: A mechanism for varying rotational speed between two rotary shafts, namely a drive shaft and a driven shaft. The mechanism is designed to replace gear boxes which are generally used in motor vehicles. The mechanism includes two truncated cones with concave surface generatrices attached to a shaft secured to the engine and to a shaft secured to the transmission members, respectively. A roller made up of an inverted double cone having convex surface generatrices is mounted on an arm via a pin and arranged to rotationally interconnect the truncated cones by means of the adherence caused both by the choice of materials and by the bearing force exerted on the truncated cones by the roller through a suitable pressure member. The roller is translationally movable over the convex surfaces of the truncated cones by means of a suitable position varying system for adapting the drive ratio to the various parameters which influence the operation of the whole mechanism, according to its position.

Abstract: This invention relates to a friction drive that uses two straight sided cones, the apexes of which are located at a common point. A driving or driven roller is located between the two cones so that rotation of this roller causes (or is caused by) the rotation of the cones. The rotary axis of the roller passes through the point at the apexes of the cones. In this manner the roller element in contact with the surfaces of the cones becomes an element of a cone rolling correctly on the two cones without experiencing any spin. The use of two cones balances the forces on the roller and doubles the torque that can be transmitted between the roller and the cones. A different embodiment of the invention uses two or more rollers contacting the two cones. By changing the position of the rollers it is possible to obtain a very large speed ratio between the rollers.

Abstract: The invention is an infinitely variable transmission having a frusto-coni impeller mounted on a block alongside a frusto-conical roller, the smaller end of the impeller being opposite the larger end of the roller. The transmission includes a wheel translatable along the impeller and roller, the wheel contacting both the impeller and roller in a selected set of wheel positions so that the wheel transfers rotary motion of the impeller to the roller. The transmission includes a mechanism to adjust the translation path of the wheel to compensate for wheel wear and a mechanism to vary the pressure with which the wheel contacts the impeller and roller.