| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474028000 |
Fluid pressure actuator for adjustment of member
| 56 |
| 474011000 |
Speed responsive
| 41 |
| 474017000 |
Load responsive
| 17 |
| 474046000 |
With spring device
| 9 |
| 474029000 |
Including actuator interconnecting plural pulleys on spaced shafts for simultaneous adjustment
| 7 |
| 474043000 |
Including lubrication or particular guide or bearing for movable member | 5 |
| 20110183792 | LUBRICATION DEVICE FOR BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION - A lubrication device for a belt type continuously variable transmission is provided in which a nozzle tube ( | 07-28-2011 |
| 20120108375 | BEARING ASSEMBLY, CLUTCH ASSEMBLY AND CONSTANT VELOCITY TRANSMISSION - A bearing for engaging an associated shaft and an associated body for axial movement on the associated shaft which includes a housing; a first set of a plurality of mounting shafts carried by said housing, each mounting shaft in said first set of a plurality of mounting shafts having a center line; and a first set of a plurality of rollers, each roller being carried a respective one of said plurality of mounting shafts and mounted for rotation about the centerline of the respective mounting shaft, each roller being dimensioned and configured for abutting relationship with the associated shaft. | 05-03-2012 |
| 20130130849 | Rolling Bearing - When a minimum thickness h of a part where an outer ring raceway is provided on a middle portion in the axial direction of an outer ring and a diameter Da of each rolling element satisfy the relationship 0.4Da≦h 0.8Da, even when the outer ring is fixed in a transmission case of low-rigidity, elastic deformation of the outer ring can be prevented without increasing the thickness of the outer ring. When an outer diameter D of an outer ring, a width W of this outer ring in the axial direction, a minimum thickness h of a part where the outer ring raceway is provided on a middle portion in the axial direction of the outer ring, and a diameter Da of each ball are controlled such that a value K calculated by {(h | 05-23-2013 |
| 20150080158 | BELT-AND-PULLEY-TYPE CONTINUOUSLY VARIABLE TRANSMISSION - Continuously variable transmission with a drive belt ( | 03-19-2015 |
| 20150105195 | CONTINUOUSLY VARIABLE TRANSMISSION BELT AND CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission belt includes rings each superimposing annular component pieces on each other's inner and outer peripheries, and plural elements attached to the rings side by side in a circumferential direction. Each element includes a neck portion. The rings are disposed on opposite sides of the neck portion. The elements contact a driving pulley and a driven pulley. A lubrication oil discharge mechanism discharges out a lubrication oil in at least one of a gap between the component pieces, and a gap between each ring and the elements. A function of discharging the lubrication oil present in a region remote from the neck portion is higher than a function of discharging the lubrication oil present in a region near the neck portion. Thereby, the rings to which the elements are attached or the component pieces of the rings restrain decline in the centering characteristic in the width direction. | 04-16-2015 |
| 474025000 |
And pulley shiftable laterally of its axis of rotation | 4 |
| 20090069132 | Adjuster systems for continuous variable transmissions - Rotational position adjuster systems that can increase the performance of CVTs that suffer from either or both transition flexing and a limited duration at which the transmission ratio can be changed by providing proper rotational adjustment. | 03-12-2009 |
| 20090111623 | PULLEY ASSEMBLY WITH AN IMPROVED CLUTCH FOR A CONTINUOUSLY VARIABLE TRANSMISSION - A pulley assembly for a continuously variable transmission in a vehicle, comprising a shaft having an axis, a supporting element rotatable about said axis, a first half pulley rigidly and rotationally connected to said supporting element, a second half pulley facing said first half pulley for defining a seat adapted to accommodate a belt of the transmission, at least one of the first and second half pulleys being longitudinally mobile with respect to the supporting element, and a clutch comprising a second supporting element connected to the shaft, a drum connected to the supporting element and accommodating the second supporting element, and a plurality of friction elements hinged to the second supporting element about respective hinge axes to selectively cooperate with the drum. In particular, the respective centres of gravity of said friction elements are located before the respective hinge axes with respect to a direction of rotation of the shaft which defines a forward running condition of the vehicle. | 04-30-2009 |
| 20100062884 | Adjuster systems for continuous variable transmissions - Rotational position adjuster systems that can increase the performance of CVTs that suffer from either or both transition flexing and a limited duration at which the transmission ratio can be changed by providing proper rotational adjustment. | 03-11-2010 |
| 20120238384 | LOCKING CONTINUOUSLY VARIABLE TRANSMISSION (CVT) - In one example, a transmission is provided that includes a sheave of selectively variable configuration, a driven member configured to engage the sheave, and a plurality of drive members configured for radial movement to selectively engage the driven member. The transmission may be operable in one or more of the following modes: traction mode, integer mode, I | 09-20-2012 |
| 474023000 |
Adjusted by power from pulley drive train | 3 |
| 20110143872 | ELECTRONIC CONTROL V-BELT CONTINUOUSLY VARIABLE TRANSMISSION MECHANISM - An electronic control V-belt continuously variable transmission mechanism is applied in a power transmission system having an engine and support shafts for a driving pulley and a driven pulley, characterized by driving the driving pulley with power supplied by a pulley driving system such that a movable portion of the driving pulley moves axially to the driving-pulley support shaft, thereby enabling a movable portion of a driven pulley connected to the driving pulley to move in response to the axial distance variation, thus changing the rotational speed of the driven pulley. The contact between a cam guide groove of a bearing base of the pulley driving system and a cam guide device is transmitted through rolling friction, and the transmission efficiency is increased by a complex lead angle effect formed between a lead angle of the cam guide groove and a lead screw. | 06-16-2011 |
| 20150148157 | CONTINUOUSLY VARIABLE TRANSMISSION AND A HYDRAULIC CONTROL METHOD THEREOF - A transmission controller determines whether a shift is a kickdown, and when the shift is determined as the kickdown, the target line pressure is increased to a first target pressure corresponding to an input torque to a continuously variable transmission increased by the kickdown; the transmission controller then determines whether the line pressure has reached the first target pressure, and if determined that the line pressure has reached the first target pressure, the target line pressure is increased to a second target pressure higher than the first target pressure. | 05-28-2015 |
| 20150308570 | HYDRAULICALLY ACTUATED CONTINUOUSLY VARIABLE TRANSMISSION FOR A VEHICULAR DRIVE LINE PROVIDED WITH AN INTERNAL COMBUSTION ENGINE - A hydraulically actuated continuously variable transmission ( | 10-29-2015 |
| 474024000 |
And member has plural, relatively axially movable drive faces | 2 |
| 20080305901 | Power transmitting chain and power transmitting apparatus having the same - A first pin of a connecting member of connecting a plurality of links to each other includes a front portion opposed to a corresponding second pin. The front portion is brought into rolling and sliding contact with the corresponding second pin at a contact portion displaced in accordance with a vibration in a bending angle between the links. A locus of moving the contact portion in accordance with bending the link forms an involute curve INV. A contact region of an end face of the first pin is brought into contact with a sheave face of a pulley by constituting a center by a contact center point. With regard to an orthogonal direction, a distance between a contact center point and a contact portion when the bending angle is zero and a distance between the contact center point and a contact portion when the bending angle is an allowable maximum bending angle are equal to each other. | 12-11-2008 |
| 20090005200 | MECHANICAL FUNCTION CONTROL OF CONTINUOUSLY VARIABLE TRANSMISSION HYDRAULIC SYSTEM - A simplified continuously variable transmission system control provides a variable clamping force and a differential cylinder pressure manipulation to change sheave ratios. The system control uses two pumps. The first pump provides the variable clamping force. The second pump provides pressure changes to effect ratio changes. The clamping force can be varied based upon operator demand on an associated engine. | 01-01-2009 |
| 474022000 |
Temperature responsive | 1 |
| 20160061320 | HYDRAULIC CONTROL SYSTEM FOR A BELT-DRIVEN CONTINUOUSLY VARIABLE TRANSMISSION - A hydraulic control system stably controls pressure in a hydraulic chamber of a pulley accommodating a belt by controlling a feeding valve and a discharging valve. The control system reduces a control amount of the feeding valve to be smaller than that calculated based on a pressure difference in a case other than one in which pressure in the hydraulic chamber is increased by delivering oil to another chamber, in case the pressure in the hydraulic chamber is increased by delivering the oil to the other chamber. The control system reduces a control amount of the discharging valve to be smaller than that calculated based on the pressure difference in a case other than one in which pressure in the hydraulic chamber is lowered by discharging the oil from the other chamber, in case the pressure in the hydraulic chamber is lowered by discharging the oil to the other chamber. | 03-03-2016 |
| 474037000 |
By manual actuator for one or both confronting members | 1 |
| 20130244819 | AUTOMATED MANUAL TRANSMISSION FOR VEHICLE - An automated manual transmission apparatus for a vehicle, may include a shifting unit equipped with a plurality of shifting mechanisms that implement different gear ratios between an input shaft and an output shaft, and a continuous transmission mechanism that may be disposed between the output shaft and a power supply, wherein the continuous transmission mechanism selectively supplies power to the input shaft of the shifting unit and selectively transmits power from the power supply to the output shaft with a continuous transmission gear ratio. | 09-19-2013 |
| Entries |
| Document | Title | Date |
|---|
| 20080207363 | Low cost torque vectoring system - A torque vectoring drive system is presented for use in a motor vehicle. The torque vectoring drive system includes a differential unit having an input shaft, a first axle shaft, a second axle shaft, and a carrier, the differential rotatably driving the axle shafts while permitting the axle shafts to have independent speeds of rotation. The system includes a continuously variable transmission (CVT) having an input shaft driveably coupled to the carrier of the differential and an output shaft driveably coupled to the first axle shaft of the differential. The CVT is operable to variably control the drive torque of the first axle shaft relative to the second axle shaft to provide torque vectoring. | 08-28-2008 |
| 20090036240 | BELT TRANSMISSION DEVICE - A belt drive system including an assembly of a heavy-duty drive V-belt | 02-05-2009 |
| 20090054181 | Clutch, Continuously Variable Transmission, Engine Unit Including Them, and Straddle-Type Vehicle Including Them - A clutch includes a clutch inner and a clutch outer that houses the clutch inner and that transmits or interrupts torque between itself and the clutch inner. The clutch outer has a thick portion that has a larger thickness than the other portions of the clutch outer. A position-of-center-of-gravity adjusting portion for bringing the center of gravity of the clutch close to the axial center of a driven shaft is formed at a position separate from the axial center of the driven shaft of the thick portion. Efficiency of manufacture work of bringing the position of the center of gravity close to the center of rotation is thereby enhanced. | 02-26-2009 |
| 20090118042 | Power Transmission Chain and Power Transmission Apparatus - A power transmission chain ( | 05-07-2009 |
| 20090156337 | Continuously variable conical pulley transmission with traction mechanism belt - A continuously variable conical pulley transmission having pairs of conical pulleys which are rotationally fixedly arranged on drive input and drive output shafts and of which in each case one is fixed to the shaft and one is axially movable, and between which a traction mechanism belt for power transmission circulates. In order that it is not necessary to provide otherwise unutilized regions of the conical pulley surfaces to allow for corresponding wear, it is proposed that a stop for limiting the transmission ratio, which stop acts substantially in the radial direction on the traction mechanism belt, be provided in at least one conical pulley pair. It is intended in particular that the peripheral surface of the drive input shaft serves as a stop. It is also proposed that a chain as a traction mechanism belt be correspondingly matched to a device of said type by virtue of the contour of the links of said chain being matched to the contour of the drive input shaft. | 06-18-2009 |
| 20090221389 | PULLEY STRUCTURE AND BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION - A fixed sheave mounted on an input shaft and a movable sheave mounted on a cylindrical member that is slidably supported in the axial direction relative to the input shaft are respectively structured using annular members having the same shape. With this structure, the fixed sheave and the movable sheave can be common structural components, thereby enabling the structural components to be easily formed by making the shape thereof relatively simple. As a result, productivity can be further improved. | 09-03-2009 |
| 20090280936 | VARIABLE BELT DRIVE - The invention relates to a variable belt drive. There is a need for an improved variable belt drive. A variable belt drive includes a non-rotating piston housing which forms three piston bores. A rotatable input shaft is coupled to a power source and is supported by bearings in the piston housing. A first sheave is mounted for rotation with the shaft and is fixed axially to the shaft. A second sheave is mounted for rotation with the shaft and is slidable axially on the shaft. A piston is movable in each piston bore in response to fluid pressure. A non-rotating carrier engages an end of each the pistons. A thrust bearing has an outer race fixed to the carrier and an inner race fixed to the second sheave and rotatable with the second sheave. The carrier includes an annular surface which engages an outer surface of the outer race. An O-ring is received in a groove in the annular surface and engages the outer race to resist rotation of the outer race. | 11-12-2009 |
| 20100099522 | BELT-TYPE CONTINUOUS STEPLESS SPEED CHANGER - A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt. | 04-22-2010 |
| 20100099523 | BELT-TYPE CONTINUOUS STEPLESS SPEED CHANGER - A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt. | 04-22-2010 |
| 20100099524 | BELT-TYPE CONTINUOUS STEPLESS SPEED CHANGER - A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt. | 04-22-2010 |
| 20100130318 | Anti-Slip Sheaves for Continuously Variable Transmissions - A sheave for use in a continuously variable transmission comprises a truncated, substantially conical portion having an inner radius, an outer radius and a contact surface extending between the inner radius and the outer radius. The contact surface of the sheave may include a plurality of concentric step features such that the contact surface is graduated between the inner radius and the outer radius. Each step feature may include a rise portion and a pitch portion. The rise portion of each step feature and the pitch portion of each step feature may extend in a circumferential direction on the contact surface. | 05-27-2010 |
| 20100167852 | DRIVEN PULLEY FOR A CONTINUOUSLY VARIABLE TRANSMISSION - The driven pulley is part of a continuously-variable transmission (CVT). The driven pulley comprises two coaxially-disposed sheaves defining between them a belt-receiving groove. It also has at least two axisymmetric ramp surfaces attached to one of the sheaves and at least two axisymmetric followers attached to the other sheave, each ramp surface being engageable by a corresponding one of the followers. At least some of the ramp surfaces are provided on corresponding ramp holders that are independent from the sheaves. A method of modifying the settings of a driven pulley and a method of assembling a driven pulley also disclosed. | 07-01-2010 |
| 20100203988 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION SYSTEM - There are provided a power transmission chain which can reduce a noise level further by eliminating unfavorable combinations from a random arrangement of combinations of pitch lengths and pin shapes and a power transmission system using the same power transmission chain. | 08-12-2010 |
| 20110034278 | POWER TRANSMISSION DEVICE - A power transmission device includes a tubular stabilizer which is arranged between a primary pulley and a secondary pulley, and through which a string portion of a power transmitting chain is passed so as to be movable relative to the stabilizer whereby movement of the power transmitting chain is restricted. The stabilizer is supported by the power transmitting chain and is moved in the traveling direction of the power transmitting chain as the power transmitting chain moves in the traveling direction, and a movement of the stabilizer of which the amount is larger than or equal to a predetermined amount is restricted by a restricting device. | 02-10-2011 |
| 20110039643 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION APPARATUS INCLUDING SAME - In a power transmission chain, an increase in rigidity in connection between pins and pulleys, a reduction in looseness of the pins when the pins bite into the pulleys, a reduction in driving noise and a further increase in practical durability are attained. | 02-17-2011 |
| 20110039644 | BELT TYPE STEPLESS TRANSMISSION AND PULLEY FOR THE SAME - A stationary pulley ( | 02-17-2011 |
| 20110039645 | INCREMENTAL VARIABLE TRANSMISSION - An incrementally variable transmission machine with an input drive and an output drive which are linked by a drive chain, and which includes an oscillating cam arrangement which, at each of two limiting positions, can act on an actuating mechanism to vary the speed of the output drive by an increment. | 02-17-2011 |
| 20110059821 | INFINITELY VARIABLE TRANSMISSION - Transmission systems, assemblies, and components are described. In particular, aspects of the present disclosure relate to an infinitely variable transmission that maintains constant tooth engagement during changes in gear ratio. In one aspect, a transmission includes an axially movable sheave coupled to a chain. The sheave rotates around a drive axis. At least partially within the sheave is a set of moon gears. The moon gears orbit around the drive axis and are rotatable around respective internal axis. As the sheave moves axially, the chain and the set of moon gears move radially to define different gear ratios, with the gear ratios being changeable in infinitely small increments. A synchronization system moves the set of moon gears radially to correspond to the axial position of the sheave. A correction system optionally controls rotation of the moon gears to rotate teeth of the moon gears into alignment with the chain. | 03-10-2011 |
| 20110092324 | CONTINUOUSLY VARIABLE BELT DRIVE SYSTEM - The present invention provides a continuously variable belt pulley transfer system that addresses prior deficiencies with CVT-type systems, particularly when used with accessory drive systems. The continuously variable belt drive system includes a driving pulley assembly and a driven pulley assembly, with a continuous belt transferring rotary motion between them. A direct electronic actuation mechanism is used for controlling ratio changes on the pulley transfer assembly. An integrated stepper motion is used as the prime mover for the mechanism. A differential planetary roller screw mechanism converts the rotary motion from the stepper motor to axial motion for actuating the sheave poison of the V-shaped belt. | 04-21-2011 |
| 20110098144 | TRANSMISSION WITH CONVEX PULLEY SHEAVES AND A DRIVE BELT - A continuously variable transmission for motor vehicles is provided with a driving pulley ( | 04-28-2011 |
| 20110152019 | BELT AND CONICAL PULLEY TRANSMISSION - A belt and conical pulley transmission including pairs of conical pulleys on the drive side and on the driven side, each pair of pulleys including an axially movable and an axially fixed conical pulley. A plate-link chain is disposed between the pulley pairs to transmit torque and includes pressure pieces. A slide rail guides the chain in a chain movement direction and is tiltably supported for tilting movement relative to a support. The slide rail is also movable along the support in a transverse direction relative to the chain movement direction to guide the chain during transmission ratio changes to minimize chain transverse oscillations and consequent acoustic disturbances. | 06-23-2011 |
| 20110152020 | ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION WITH AXIALLY MOVABLE TORQUE TRANSMITTING MECHANISM - An electronically controlled CVT driving pulley comprising a pair of opposed sheaves adapted to rotate about a driving pulley rotation axis is hereby provided, one of the sheaves including an axial protrusion including a series of teeth cooperating with an axial bearing mechanism providing a relative axial displacement between the opposed sheaves and to transmit a torque between the opposed sheaves. A kit and a method for transmitting a torque between two opposed sheaves of an electronically controlled CVT is also provided. | 06-23-2011 |
| 20110207565 | METHODS AND APPARATUSES FOR ADJUSTING A VARIABLE SHEAVE PULLEY - Pulley alignment apparatus for aligning pulleys when the operating position of a variable sheave pulley of a pulley system has changed is provided. The pulley alignment apparatus has an adjustable laser light unit that can be adjusted to compensate for the resulting displacement of the centerline of the variable sheave pulley when the operating position is changed. The pulley alignment apparatus also has a set of gauges for determining the operating position of a variable sheave pulley and determining if a belt is adequate for the variable sheave pulley at the operating position. | 08-25-2011 |
| 20110244998 | VEHICLE TRANSMISSION HAVING CONTINUOUSLY VARIABLE TRANSMISSION RATIO - A vehicle transmission with continuously variable transmission ratios, which has a first conical disk pair arranged on a first shaft, and a second conical disk pair arranged on a second shaft, a belt arranged between the conical disk pairs, and an input shaft which has an output wheel mounted rotatably thereon. The input shaft can optionally be rotationally engaged with the first or second shaft and the output wheel can be rotationally engaged with the respectively other shaft. Also, a multi-disk clutch transmits a rotational force between the input shaft and the first or second shaft and the output wheel can be rotationally engaged with the other shaft by way of a dog clutch. The first multi-disk clutch and the first dog clutch can be actuated by a first hydraulically actuated device and the second multi-disk clutch and the second dog clutch can be actuated by way of a second hydraulically actuated device. | 10-06-2011 |
| 20110250998 | Pulley Support Structure for Belt-Drive Continuously Variable Transmission and Belt-Drive Continuously Variable Transmission - A pulley support structure for a belt-drive continuously variable transmission and a belt-drive continuously variable transmission are provided that are able to control the occurrence of Mindlin slip itself, and in cases where Mindlin slip has occurred, are able to effectively reduce the effects thereof. In this pulley support structure for a belt-drive continuously variable transmission, 2500 MPs or less is the maximum contact pressure during use between the raceway surfaces of the inner wheel and outer wheel and the rolling elements in the various roller bearings for rotatably supporting the pulleys for the continuously variable transmission. The rolling element surface hardness is HRc 60 or greater, and is at least 1 HRc harder than that of the raceway surfaces. The surface of the rolling element is nitrided or carbonitrided, and the nitrogen concentration in the surface is 0.2% by mass or greater and 2.0% by mass or less. Radial direction gap in the various roller bearings during use is −30 μm or greater and 10 μm or less. | 10-13-2011 |
| 20110281675 | Disk set arrangement for a chain-CVT having a function-optimized disk set contour - A disk set arrangement for a chain-CVT having a function-optimized disk set surface contour. The CVT includes a first drive disk set and a second driven disk set, wherein the disk sets of the disk set arrangement in each case include two disks mounted on respective shafts. One disk of each of the disk sets can be displaced axially relative to an opposed axially fixed disk. An endless chain arrangement with rocker pressure pieces is operative between the disk sets to transmit torque. The rocker pressure pieces have longitudinal axes that extend parallel to the rotational axes of the shafts, and include outer axial ends that contact the contoured disk surfaces. | 11-17-2011 |
| 20120088615 | CVT Pulley With Engineered Surface - A pulley for a continuously variable transmission and a method of creating an engineered surface on an outer surface of a pulley of a continuously variable transmission, with the engineered surface engaging with a belt or chain of the continuously variable transmission. The method comprising the steps of: determining an actual engineered roughness (Rpk) on the outer surface needed to obtain a predetermined friction between the engineered surface and the belt or chain; and etching microgrooves in at least a portion of the outer surface to create the engineered surface by employing a laser to etch the microgrooves, the microgrooves being formed to a depth that produces the actual engineered roughness (Rpk). | 04-12-2012 |
| 20120100943 | PULLEY FOR BELT TRANSMISSION DEVICE, NOTABLY FOR A BELT SPEED-VARIATOR, AND BELT SPEED-VARIATOR INCORPORATING SUCH A PULLEY - A pulley for a belt transmission device of the type including at least one shaft and two flanges supported by the shaft, one of the flanges, recessed centrally and received so as to fit onto the shaft for an axially free installation being fitted with return elements to return in the direction of the other flange, and delimiting with the other flange a groove of variable dimension inside which it is possible for the belt to be inserted, at least one of the flanges being a flange made of synthetic material furnished, on its surface facing the other flange, with a centrally recessed dish made of metal. The or each dish is, in its zone adjacent to the central recess, separated from the flange that it lines by a space, called a peripheral space, which reduces in the zone the thermal exchanges between flange and dish. | 04-26-2012 |
| 20120172161 | DISK SET ARRANGEMENT FOR A CHAIN-TYPE CVT - The invention relates to a disk set arrangement with a driving disk set and a driven disk set for a chain-type CVT, wherein each disk set of said arrangement comprises two disks that are axially displaceable relative to one another on a shaft and a chain arrangement comprising thrust pieces that are active between said disks. The longitudinal axis of said thrust pieces runs parallel to the rotational axis of the shaft, and the frictional surfaces of the disks and the thrust pieces have a curvature determined by a radius and an eccentricity, wherein the eccentricity of the disk in the driving disk set is different to that of the driven disk set. | 07-05-2012 |
| 20120244972 | CLAMP FORCE CONTROL METHOD FOR CONTINUOUS VARIABLE TRANSMISSION - A clamp force control method for a continuous variable transmission may include a first process that fixes clamp force of any one of a driving pulley and a driven pulley, and a second process that finds a section where a transmission ratio may be the minimum while gradually decreasing the clamp force from a current clamp force of the other pulley of which the clamp force may not be fixed in the first process and sets the clamp force in the section where the transmission ratio may be the minimum as the clamp force of the other pulley, which may not be fixed. | 09-27-2012 |
| 20120244973 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission includes a first shaft integrally rotatably coupled to a primary pulley, a second shaft integrally rotatably coupled to the secondary pulley, a first gear mounted on the first shaft and relatively rotatable with respect to the first shaft, a second gear fixed on the second shaft and engaged with the first gear, a forward clutch for coupling an engine and the first shaft, and a reverse clutch for coupling the engine and the first gear. | 09-27-2012 |
| 20130040769 | BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE - A belt type continuously variable transmission for a vehicle includes: an input shaft and an output shaft disposed in parallel with each other; a pair of groove width variable pulleys disposed on the outer circumferential sides of the input shaft and the output shaft; and a transmission belt wound around each of V-grooves of the pair of the groove width variable pulleys, the belt type continuously variable transmission for a vehicle changing a winding diameter of the transmission belt by changing the groove widths of the V-grooves so as to continuously vary a gear ratio, wherein the groove width variable pulley includes a fixed sheave fixed to an outer circumferential surface of one of the input shaft and the output shaft, and a movable sheave disposed relatively non-rotatably on the one shaft and relatively movably in the direction of the shaft center of the one shaft so as to form the V-groove with the fixed sheave, wherein the belt type continuously variable transmission for a vehicle is disposed with a parking gear having a disc-shaped main body portion fixed to the one shaft on the side opposite to the movable sheave relative to the fixed sheave, and an annular projecting portion projecting from the main body portion toward a wall surface of the fixed sheave on the side opposite to the movable sheave and abutting on the wall surface of the opposite side on the outer circumferential side than the minimum winding diameter of the transmission belt, and wherein the annular projecting portion of the parking gear abuts on the wall surface of the fixed sheave on the side opposite to the movable sheave at a radial position corresponding to the maximum winding diameter of the transmission belt. | 02-14-2013 |
| 20130059684 | BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION - With respect to a belt type continuously variable transmission in which a belt is wound around between a primary pulley and a secondary pulley, each of which includes a stationary sheave and a movable sheave, and a transmission is carried out by forwardly and backwardly moving the movable sheave with respect to the stationary sheave, a boss portion that protrudes in an axial direction is integrally formed with the stationary sheave of the secondary pulley, and a parking gear is provided on the outer circumferential side of the boss portion. Further, the configuration to hold the bearing is achieved using the inner circumferential portion of the boss portion integrally formed with the stationary sheave, that is, the inner circumferential portion of the parking gear so as to shorten the axial length of the secondary shaft, whereby achieving cost reduction. | 03-07-2013 |
| 20130079182 | PULLEY SYSTEM FOR OUTDOOR POWER EQUIPMENT - A method of manufacturing a pulley system includes spin-forming metal to form an annular wall of a sheave, pressing powdered metal to form a hub of the sheave, and fastening together the annular wall and the hub. | 03-28-2013 |
| 20130079183 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION DEVICE - A power transmission chain includes a plurality of links respectively having front and rear insertion parts into which pins are inserted, a plurality of first pins and a plurality of second pins which are arranged in front and back for connecting the links A plurality of the links includes two types of the links having different pitch lengths, wherein provided that a radius of a pulley shaft is RA, a radius of curvature of a face of the link having a shorter pitch length at an inner diameter side of the chain is RS, and a radius of curvature of a face of the link having a longer pitch length at an inner diameter side of the chain is RL, relation is set to be RA≦RS≦1.5 RA, and RS| 03-28-2013 | |
| 20130109515 | CHAIN-TYPE CONTINUOUSLY VARIABLE TRANSMISSION | 05-02-2013 |
| 20130157793 | Driven Clutch System - This disclosure generally includes description of a secondary driven clutch system for a continuously variable transmission. The secondary driven clutch system may be coupled adjacent a shaft that is rotatable about a longitudinal axis. The system may include a movable sheave including a slot, where the movable sheave may be movable closer to or further from a stationary sheave along the longitudinal axis. The slot may be generally at an angle from the longitudinal axis and configured to reduce the longitudinal force needed to move the moveable sheave along the shaft along the longitudinal axis, as compared to a slot generally parallel to the longitudinal axis. | 06-20-2013 |
| 20130157794 | CVT SPIDER LOCK - This disclosure generally includes description of a clutch for a continuous variable transmission (CVT), more particularly to the drive clutch of a CVT for immovably coupling a spider portion to a CVT shaft during reverse rotation or acceleration or deceleration of the CVT shaft. | 06-20-2013 |
| 20130178316 | BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE - A belt-type continuously variable transmission for a vehicle includes: a primary pulley including a first fixed sheave fixed to an input shaft, and a first movable sheave relatively non-rotatable and relatively movable in axial direction to the input shaft due to spline-fitting of a female spline formed on an inner circumferential portion thereof to a male spline formed on the input shaft; a secondary pulley including a second fixed sheave fixed to an output shaft in parallel with the input shaft, and a second movable sheave relatively non-rotatable and relatively movable in the axial direction to the output shaft due to spline-fitting of a female spline formed on an inner circumferential portion thereof to a male spline formed on the output shaft; and a transmission belt wound around a V-shaped first pulley groove formed between the first fixed sheave and the first movable sheave and a V-shaped second pulley groove formed between the second fixed sheave and the second movable sheave, the female spline formed on the inner circumferential portion of the first movable sheave of the primary pulley being formed on the transmission belt side in the axial direction when the transmission belt is wound around the first pulley groove, the first movable sheave having a first cylindrical portion with cylindrical shape formed on the side opposite to the transmission belt side in the axial direction, the first cylindrical portion having an inner circumferential surface in sliding contact with an outer circumferential surface of the input shaft, the female spline formed on the inner circumferential portion of the second movable sheave of the secondary pulley being formed on the transmission belt side in the axial direction when the transmission belt is wound around the second pulley groove, the second movable sheave having a second cylindrical portion with cylindrical shape formed on the side opposite to the transmission belt side in the axial direction, the second cylindrical portion having an inner circumferential surface in sliding contact with an outer circumferential surface of the output shaft, the belt-type continuously variable transmission for a vehicle disposed with at least one of a first groove width defining portion disposed on the primary pulley for defining a maximum groove width of the first pulley groove and a second groove width defining portion disposed on the secondary pulley for defining a maximum groove width of the second pulley groove, the first groove width defining portion and the second groove width defining portion being disposed on one shaft of the input shaft and the output shaft, and the other shaft having a uniform shaft diameter in an range of sliding of the first movable sheave or the second movable sheave in the axial direction except a site with the male spline formed, the other shaft being disposed on the opposite side to the one shaft. | 07-11-2013 |
| 20130303316 | BELT-DRIVEN CONTINUOUSLY VARIABLE TRANSMISSION - A belt-driven continuously variable transmission includes a drive pulley, a driven pulley and a driving belt. Each pulley is formed by a fixed sheave integrated with a rotary shaft and a movable sheave fitted onto the rotary shaft in a slidable manner. A belt groove holding a driving belt is formed individually between conical surfaces of the fixed sheave and the movable sheaves being opposed to each other. The belt-driven continuously variable transmission changes a speed ratio continuously by altering an effective diameter of the driving belt by varying the groove width. A non-metallic belt made of resin material is used as the driving belt, and a friction coefficient of a radially inner region of each conical surface of driven pulley is smaller than that in a radially outer region. | 11-14-2013 |
| 20140066239 | V-BELT CONTINUOUSLY VARIABLE TRANSMISSION - The V-belt continuously variable transmission comprises a driving pulley and a driven pulley mounted on shafts, each of which pulleys consists of two half pulleys movable in a horizontal plane and provided with radial longitudinal through slots for enabling the half pulleys to mate (penetrate) one another, and a drive belt. Furthermore, each half pulley is in the form of a single component consisting of three solids of revolution with a common axis, which are interconnected as a single unit, two of said solids of revolution being different-sized hollow truncated cones oriented in different directions and connected by their smaller bases, and the third being a hub that is connected to the corresponding shall in such a way as to be able to move along the latter. The technical result of the claimed utility model is enhanced reliability and increased service life. | 03-06-2014 |
| 20140128187 | CONTROL DEVICE FOR VEHICLE CONTINUOUSLY VARIABLE TRANSMISSION - A control device for a vehicle continuously variable transmission that includes: an input-side variable pulley of which an effective diameter is variable; an output-side variable pulley of which an effective diameter is variable; a transmission belt that is wound between the input-side variable pulley and the output-side variable pulley; and a check valve that, on the basis of a first pressure that is one of an input-side pressure applied to the input-side variable pulley and an output-side pressure applied to the output-side variable pulley, regulates a second pressure that is the other one of the input-side pressure and the output-side pressure includes: a control unit that, when the second pressure is regulated by the check valve, controls the first pressure on the basis of a pressure required to suppress a slip of the transmission belt and a pressure required to achieve a target speed ratio. | 05-08-2014 |
| 20140187365 | V-BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION - A V-belt type continuously variable transmission includes a drive shaft, a drive pulley assembly, a driven shaft, a driven pulley assembly, a V belt, and a transmission case assembly, the drive shaft is formed as a separate body from the crankshaft, one axial end of the drive shaft is spline-fitted to a shaft coupling portion provided in an end of the crankshaft, freely move in the axial direction within a predetermined distance, and be permitted to fall slightly, and the other axial end of the drive shaft is supported in the transmission case assembly or via a front bearing. | 07-03-2014 |
| 20140187366 | V-BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION - In a V-belt type continuously variable transmission for utility vehicle, a transmission case assembly covering a drive pulley assembly and a driven pulley assembly is provided, the transmission case assembly includes a transmission case main body, and a transmission cover attached to a cover attachment surface of the transmission case main body, the cover attachment surface is inclined with respect to a vertical plane which is orthogonal to a crankshaft, and the transmission cover is attached to the cover attachment surface by a plurality of bolts removed and inserted in the direction orthogonal to the cover attachment surface. | 07-03-2014 |
| 20140235381 | ENDLESS POWER TRANSMISSION BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION - Among V-faces ( | 08-21-2014 |
| 20140248981 | MOON GEAR AND SLED ARRANGEMENT FOR MULTIPLE WHOLE-INTEGER VIRTUAL CIRCLES - In one example, a transmission is provided that includes a sheave of selectively variable configuration, a driven member configured to engage the sheave, and a plurality of drive members configured for radial movement to selectively engage the driven member. The transmission may be operable in one or more of the following modes: traction mode, integer mode, I | 09-04-2014 |
| 20140287854 | CONTINUOUSLY VARIABLE TRANSMISSION - A chain (endless flexible member) is looped over an input pulley and an output pulley. Each of the input pulley and the output pulley includes a pair of a fixed sheave and a movable sheave. The fixed sheave and the movable sheave have tapered faces that are opposed to each other to define a V-shaped groove. A vibration damping plate (vibration damping member) is fixed to each fixed sheave, and is in contact with the outer peripheral face of the fixed sheave. When the fixed sheave vibrates, the vibrations are damped by the friction between the outer peripheral face of the fixed shave and the vibration damping plate. | 09-25-2014 |
| 20140329627 | SPEED CONTROL ASSEMBLY FOR A SELF-PROPELLED WALK BEHIND LAWN MOWER - A speed control mechanism for controlling selective engagement of the self-propelled transmission assembly for a walk-behind lawn mower is provided. The speed control mechanism is also configured to control the relative output speed of the transmission assembly. The speed control mechanism includes a speed engagement assembly and a speed adjustment assembly, wherein the speed engagement assembly includes a pair of rotatable levers for causing the transmission assembly to actuate between a disengaged position and an engaged position and the speed adjustment assembly includes a rotatable knob for causing the relative output speed of the transmission assembly to the wheels of the lawn mower to increase or decrease. | 11-06-2014 |
| 20140335981 | PULLEY MECHANISM OF VEHICULAR BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION - A pulley mechanism of a vehicular belt-type continuously variable transmission that makes it possible to enhance the joint strength between a rotary shaft and a stationary sheave without increasing the axial length of the belt-type continuously variable transmission is provided. Since a first stationary portion and a second stationary portion are provided on both sides of a step portion respectively, a stationary sheave is fixed by this first stationary portion and this second stationary portion, and the joint strength between the stationary sheave and an output shaft increases. Besides, a belt reaction force during power transmission can be received by the first stationary portion and the second stationary portion. Therefore, the amount of inclination of the stationary sheave during power transmission is also held small, and a fall in the torque capacity and transmission efficiency of the belt-type continuously variable transmission and a deterioration in the NV characteristics of the belt-type continuously variable transmission can be suppressed. | 11-13-2014 |
| 20150011344 | BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION DEVICE - A belt type continuously variable transmission device includes an actuator that moves a moveable sheave member of a drive pulley which is a one-side pulley in an axial direction. The actuator includes a moveable feed member, a gear case, and an electric motor. The moveable feed member includes an inner tube section in which a moveable-side feed screw is provided, an outer tube section in which an outer gear is provided, and a lid section. The gear case has a fixed tube section in which a fixed-side feed screw is provided, and an outer cover. The electric motor drives a motor-side gear that intermeshes with the outer gear. The outer cover has an opening into which the outer tube section is inserted and that proximately opposes an outer circumferential surface of the outer tube section. | 01-08-2015 |
| 20150087453 | BELT TENSION ADJUSTMENT APPARATUS FOR VEHICLES - A belt tension adjustment apparatus for vehicles, including a rotational shaft of a rotor; a first coupling pin and a second coupling pin protruding in a direction perpendicular to the rotational shaft; an outer pulley penetrating the rotational shaft and having a first coupling part extending toward a front direction, the first coupling part enclosing the rotational shaft and having a first slit penetrating at a point corresponding to the first coupling pin, and the first slit having an arc shape convex in the front direction. An inner pulley is disposed between the rotor and the outer pulley, to penetrate the rotational shaft, and has a second coupling part extending in a rear direction. The second coupling part encloses the rotational shaft and has a second slit penetrating at a point corresponding to the second coupling pin. The second slit has an arc shape convex in the rear direction. | 03-26-2015 |
| 20150094176 | V-BELT CONTINUOUSLY VARIABLE TRANSMISSION - A V-belt continuously variable transmission in which an actuator unit for driving a movable sheave is slidably supported by a transmission case that is formed by fastening a plurality of case members with a plurality of fastening members, for ensuring a sufficient space for slidably moving the actuator unit and enhancing workability of mounting and dismounting operation of the actuator unit. A flat mounting surface for mounting the actuator unit is formed on an outer surface of the transmission case. Also, a recessed portion recessed inwardly of the transmission case from the mounting surface is formed to have at an inner end thereof a fastening seat face for a specific fastening member out of the plurality of fastening members, the specific fastening member being disposed at a portion corresponding to the mounting surface. The whole specific fastening member is disposed inwardly of the transmission case relative to the mounting surface. | 04-02-2015 |
| 20150316139 | TRANSMISSION DAMPER - A transmission damper includes a first cover plate, a flange, a spring, and a shaft. The first cover plate includes a first spring window and is arranged for fixing to a sheave for a continuously variable transmission. The flange is rotatable relative to the first cover plate and includes a second spring window. The spring is disposed in the first and second spring windows. The shaft is fixed to an inner portion of the flange and arranged for connecting to an engine crankshaft. In an example embodiment, the shaft is fixed to the flange by welding. In an example embodiment, the sheave is rotatable relative to the shaft. In an example embodiment, the shaft includes an internal taper for connecting to the engine crankshaft. In an example embodiment, the flange includes a radially extending tab arranged for contacting a portion of the cover plate after a predetermined rotation. | 11-05-2015 |
| 20160040749 | Transmission Belt and Belt-Speed-Change Device - The present invention relates to a power transmission belt provided with a tension member, a tension member-supporting layer, a tension rubber layer, and a compression rubber layer, the belt having a plurality of cog portions, in which the tension member is formed of an aramid fiber, the compression rubber layer is formed of a vulcanized rubber composition containing a rubber component and aramid short fibers embedded in the vulcanized rubber composition with being arranged in a width direction of the belt, the power transmission belt has a strain of from 0.5 to 0.8% when compressed under a stress of 2.0 N/mm2 in the width direction, and the power transmission belt has a strain of from 0.35 to 0.7% when pulled under a load of 2 kN in the lengthwise direction. | 02-11-2016 |
| 20160040761 | Chain Continuously Variable Transmission - When a chain is wound around a pulley, a pin-pulley contact point as a contact point of a pin of the chain with the pulley slides and moves on a conical surface of the pulley. A contact point slip distance, namely the distance by which the pin-pulley contact point moves on the conical surface at this time, is associated with an offset. The offset is the distance between a pin-pin contact point, which is a contact point between the pins at the time the chain is in a linear state, and the pin-pulley contact point in a y-axis direction. Offsets that minimize the contact point slip distance at the maximum running radius and the minimum running radius of the chain are obtained, and the offset is set between these values. The pin-pulley contact point is set close to the pin-pin contact point of the chain in the linear state. | 02-11-2016 |
| 20160047457 | SHAFT SUPPORTING STRUCTURE OF BELT-DRIVEN CONTINUOUSLY VARIABLE TRANSMISSION - A shaft supporting structure of a belt-driven continuously variable transmission for reducing a length of a shaft on which a torque cam is mounted is provided. A first bearing is interposed between an outer circumferential face of the rotary shaft and an inner circumferential face of the torque cam to support those members while allowing relative rotation therebetween. A second bearing is situated radially outside of the first bearing to support one of axial ends of the output member while allowing the output member to rotate relatively with a casing. A sealing member is fitted onto the torque cam to be interposed between an outer circumferential face of the torque cam and the second bearing. | 02-18-2016 |
| 20160053872 | SERIAL CONTINUOUSLY VARIABLE TRANSMISSION - The invention provides a serial continuously variable transmission ( | 02-25-2016 |
| 20160061314 | CONTINUOUSLY VARIABLE TRANSMISSION - A vehicle may include a continuously variable transmission which requires non-recycled air. The continuously variable transmission may provide non-recycled air to a first number of sheaves of the continuously variable transmission with a second number of air supply conduits, the second number being less than the first number. A cover of the continuously variable transmission may have a unitary body. | 03-03-2016 |
| 20160069433 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission is obtained by winding, around a drive sheave and a driven sheave, a continuously variable transmission belt in which a plurality of metal elements are stacked and supported on an endless ring. In at least one of the metal elements, flange parts are formed on a head part positioned at an outer peripheral side of the endless ring and a trunk part positioned at an inner peripheral side of the endless ring. The continuously variable transmission is provided with a fluid supply device which, during movement of the continuously variable transmission belt from the driven sheave to the drive sheave, sprayed lubricating oil in a movement direction of the continuously variable transmission belt, towards the flange parts. | 03-10-2016 |
| 20160076625 | TRANSMISSION FOR SELF-PROPELLED ROLLING VEHICLE AND SELF-PROPELLED VEHICLE EQUIPPED WITH SUCH A TRANSMISSION - The invention relates to a transmission ( | 03-17-2016 |
| 20160102741 | CONTINUOUSLY VARIABLE TRANSMISSION - In a continuously variable transmission, driving force from a drive source is transmitted via a path to establish a LOW mode. A large torque that is transmitted in the LOW mode passes through a first output switching mechanism. Since a countershaft is relatively rotatably disposed on an outer periphery of an input shaft, and the first output switching mechanism is disposed on the countershaft, the countershaft which transmits a large torque is disposed on an outer peripheral side of a double tube and supported directly by a transmission case, and the input shaft which transmits a relatively small torque is supported via the countershaft, thereby making it possible to support the first output switching mechanism with high rigidity without carrying out special reinforcement. | 04-14-2016 |
| 20160109000 | CONTINUOUSLY VARIABLE TRANSMISSION - In a continuously variable transmission, driving force from a drive source is transmitted via the path: first input switching mechanism→first input path→first countershaft→first pulley→endless belt→second pulley→second countershaft→first output path→second input shaft→first output switching mechanism→output shaft to thus establish a LOW mode. A large torque that is transmitted in the LOW mode passes through the first output switching mechanism, but since the second input shaft is relatively rotatably disposed on the outer periphery of the first input shaft and the first output switching mechanism is disposed on the second input shaft, it is possible to enhance the rigidity of the input shaft due to the double tube structure formed from the first input shaft and the second input shaft and to support the first output switching mechanism with high rigidity without carrying out special reinforcement. | 04-21-2016 |
| 20160169354 | VARIABLE-SPEED BELT DRIVE | 06-16-2016 |
| 20160186841 | BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION DEVICE - A belt type continuously variable transmission device includes an actuator that moves a moveable sheave member of a drive pulley which is a one-side pulley in an axial direction. The actuator includes a moveable feed member, a gear case, and an electric motor. The moveable feed member includes an inner tube section in which a moveable-side feed screw is provided, an outer tube section in which an outer gear is provided, and a lid section. The gear case has a fixed tube section in which a fixed-side feed screw is provided, and an outer cover. The electric motor drives a motor-side gear that intermeshes with the outer gear. The outer cover has an opening into which the outer tube section is inserted and that proximately opposes an outer circumferential surface of the outer tube section. | 06-30-2016 |
| 20160186846 | POWER TRANSMISSION SWITCHING MECHANISM AND TRANSMISSION - Provided are a power transmission switching mechanism allowing reduction in size and weight in a simple configuration with a minimized piece-part count, and a transmission provided therewith. The power transmission switching mechanism includes a sleeve that moves in an axial direction of a rotation shaft, a hub section provided integrally with a gear for holding a sleeve axially slidably and unrotatably, and a dog spline installed to a pulley piston fixed to the rotation shaft for meshing the sleeve. In a state in which the sleeve is held to the hub section, the rotation shaft is disengaged with the gear and a relative rotation thereof is allowed. Meanwhile, when the sleeve axially moves from the hub section, the rotation shaft engages with the gear and both thereof rotate integrally. | 06-30-2016 |
| 20160201790 | LUBRICATION DEVICE FOR BELT-DRIVEN CONTINUOUSLY VARIABLE TRANSMISSION | 07-14-2016 |
| 20180023664 | A PUSHBELT FOR A CONTINUOUSLY VARIABLE TRANSMISSION AND A TRANSMISSION PROVIDED THEREWITH | 01-25-2018 |
| 20180023978 | DISPLACEMENT DETECTION DEVICE AND CONTINUOUSLY VARIABLE TRANSMISSION | 01-25-2018 |
| 20190145495 | CHAIN BELT AND METHOD OF MANUFACTURING THE SAME | 05-16-2019 |
