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Endless belt power transmission systems or components

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
474101000 MEANS FOR ADJUSTING BELT TENSION OR FOR SHIFTING BELT, PULLEY OR GUIDE ROLL 352
474202000 POSITIVE DRIVE BELT 148
474008000 PULLEY WITH BELT-RECEIVING GROOVE FORMED BY DRIVE FACES ON RELATIVELY AXIALLY MOVABLE COAXIAL CONFRONTING MEMBERS (E.G., EXPANSIBLE CONE PULLEY, ETC.) 127
474152000 POSITIVE DRIVE PULLEY OR GUIDE ROLL 117
474237000 FRICTION DRIVE BELT 97
474069000 CONTROL FOR VARIABLE INPUT TO OUTPUT SPEED-RATIO 96
474166000 FRICTION DRIVE PULLEY OR GUIDE ROLL 52
474148000 SYSTEM INCLUDING SPACED PULLEYS INTERCONNECTED BY A BELT 44
474094000 RESILIENT CONNECTION BETWEEN PULLEY OR GUIDE-ROLL RIM AND MOUNT 32
474140000 BELT GUIDE HAS SURFACE IN SLIDING CONTACT WITH BELT 23
474091000 STRUCTURE FACILITATING LUBRICATION OF BELT, PULLEY, OR GUIDE ROLL 16
474144000 GUARD OR HOUSING FOR BELT OR PULLEY 15
474141000 PULLEY HAVING CIRCUMFERENTIALLY SPACED PORTIONS OF DRIVE FACE SPACED UNEQUAL DISTANCES FROM PULLEY AXIS OF ROTATION (E.G., ELLIPTICAL PULLEY, ETC.) 10
474084000 PLURAL BELTS OR PLURAL OUTPUT LOADS 9
474047000 PULLEY WITH EXPANSIBLE RIM MEANS OR PULLEYS WITH ALTERNATELY USEABLE NESTABLE RIMS 8
474093000 FLUID-IMPELLING MEANS (E.G., FOR COOLING, ETC.) 5
20130090198Belt Type Continuously Variable Transmisson - A belt-type continuously variable transmission is provided. The belt-type continuously variable transmission includes a drive pulley assembly; a driven pulley assembly, a belt wrapped around these pulley assemblies, and a case assembly accommodating them. The case assembly includes a case body joined to a housing of a drive device such as an engine and a cover joined to the case body. Since an air-intake duct and an air discharge duct are attached to the case body, the cover can be configured to be thin, and thus the cover can be detached without providing a wide space in front of the cover in the direction in which the cover is detached. With this construction, the cover can be detached without detaching the air-intake duct and the air discharge duct, and thus maintenance can be performed easily.04-11-2013
20130090199Belt Type Continuously Variable Transmisson - A belt-type continuously variable transmission comprises a drive pulley assembly mounted to a drive shaft; a driven pulley assembly mounted to a driven shaft; a belt connecting the two; and a case assembly for accommodating these components. The drive pulley assembly has fins for generating a flow of air moving toward an outer periphery of the drive pulley assembly. When viewed in an axial direction of the drive shaft, an air blocking plate is positioned at a forward side in a rotational direction of the drive pulley assembly relative to an imaginary line segment connecting a center axis of the drive pulley assembly to a center axis of the driven pulley assembly, between the drive pulley assembly and the driven pulley assembly such that the air blocking plate surrounds the outer periphery of the drive pulley assembly over a predetermined range.04-11-2013
20090298627Ventilated CVT - The invention provides apparatus for cooling at least one sheave and/or an endless belt of a continuously variable transmission (CVT). As previously mentioned, the CVT is comprised of a drive clutch, a driven clutch, and the endless belt disposed about the drive and driven clutches. Both the drive and driven clutches include an axially stationary sheave and an axially movable sheave. Certain embodiments provide a ventilation air path through at least one sheave of at least one clutch of the CVT. In addition, certain embodiments provide a ventilation air path through both sheaves of at least one clutch of the CVT. Further, certain embodiments provide apparatus adapted to direct air proximate to an outer face of at least one sheave of at least one clutch inward to a central area of the at least one sheave when the at least one sheave is rotated in a direction of rotation. The apparatus also allows the at least one sheave and at least one clutch to be more aerodynamic, enabling the CVT to operate more efficiently.12-03-2009
20120289370COOLING AIR INTAKE STRUCTURE FOR V-BELT DRIVE CONTINUOUSLY VARIABLE TRANSMISSION - Disclosed is a cooling air intake structure for a V-belt drive continuously variable transmission, which is disposed beside the rear wheel of a small vehicle and which does not permit muddy water and dust to enter therein. A cooling air inlet through which cooling air is taken in is formed at a position beside a transmission case and above a cooling fan side opening formed in the transmission case opposite to a drive pulley. A cooling air passage extending from the cooling air inlet to the side opening is formed so as to surround the side opening. Cooling air taken in through the cooling air inlet is guided so as to flow upward first and then flows downward along a U-shaped cooling air passage to the side opening of the transmission case beside the cooling fan.11-15-2012
20130190114TRANSFER GEARBOX - A transfer gearbox includes an input shaft, first and second output shafts, and a torque transmission device having a clutch which distributes a driving torque introduced via the input shaft optionally to the first output shaft and the second output shaft. A chain drive is active between the torque transmission device and the second output shaft, and includes a lower chain wheel which engages in an oil sump with lubrication oil such that, by way of a chain, lubrication oil is conveyed from the oil sump in the direction of an upper chain wheel which is drive-connected to the lower chain wheel via the chain. The chain is arranged at an outlet opening of an oil reservoir which collects the lubrication oil and which opens into the oil sump. The chain throttles the flowing out of the lubrication oil collected in the oil reservoir into the oil sump.07-25-2013
474139000 PULLEY ENGAGES EXTERIOR SURFACE OF BELT 5
20130090200TOP DRIVE - A distributed drive includes a frame, a main sprocket, and a plurality of drive assemblies mounted therearound for rotation of the main sprocket. The main sprocket has a circumferential drive rim around which the drive assemblies are mounted in driving engagement with the drive rim so as to selectively rotate the main sprocket relative to the frame. Each drive assembly includes at least two auxiliary sprockets lying substantially in the plane of the main sprocket. An endless belt is mounted around the auxiliary sprockets so that a span of the endless belt spans between a pair of the auxiliary sprockets in an arc-of-contact with the drive rim. At least one of the two auxiliary sprockets is a selectively driven drive sprocket for selective rotation of the main sprocket.04-11-2013
20110124451VEHICLE ENERGY HARVESTING DEVICE HAVING A CONTINUOUS LOOP OF SHAPE MEMORY ALLOY - An energy harvesting system comprises a first region having a first temperature and a second region. A conduit is located at least partially within the first region. A heat engine configured for converting thermal energy to mechanical energy includes a shape memory alloy forming at least one generally continuous loop. The shape memory alloy is disposed in heat exchange contact with the first region and the second region. The shape memory alloy is driven to rotate around at least a portion of the conduit by the response of the shape memory alloy to the temperature difference between the first region and the second region. At least one pulley is driven by the rotation of the shape memory alloy, and the at least one pulley is operatively connected to a component to thereby drive the component.05-26-2011
20120142469DUAL PULLEY CHAIN GUIDE AND GUARD - A chain guide having a mounting bracket mounted to the bottom bracket shell with multiple coaxial pulleys, each of which is in substantially planar alignment with one chainring of a crank with two or more chainrings. Each pulley cog engages the bicycle chain when the chain is on a corresponding chainring. One of the pulley cogs can be replaced by a roller mounted to the bracket coaxially with the first pulley cog and in substantially planar alignment with the corresponding chainring.06-07-2012
20110124452VEHICLE ENERGY HARVESTING DEVICE HAVING A CONTINUOUS LOOP OF SHAPE MEMORY ALLOY - An energy harvesting system comprises a first region and a second region having a temperature difference therebetween. A plurality of heat engines are located proximate to the conduit and configured for converting thermal energy to mechanical energy. The heat engines each include a shape memory alloy forming at least one generally continuous loop. The shape memory alloy driven to rotate by heat exchange contact with each of the first region and the second region. At least one pulley for each of the plurality of heat engines is driven by the rotation of the respective shape memory alloy, and each of the at least one pulleys is operatively connected to a component to thereby drive the component.05-26-2011
20110124453POWER TRANSMISSION BELT - A power transmission belt (05-26-2011
474064000 PLURAL TURNS OF SAME BELT ABOUT PULLEY AXIS 3
20120316017ORIENTATION SYSTEM AND METHOD - A system and a method for orientation of a ring by rotation, including a cable engaging the ring which rotates about a ring axis, a motor assembly providing a first rotation reduction, and a stretcher for stretching the cable. The system has at least one proximal pulley and at least one distal pulley rotating about a pulley axis each pulley having grooves configured for receiving the cable therein. The ring is rotated by the motor assembly and the pulley assembly is configured to provide a second reduction of rotation to the ring relative to motor rotation, whereby the ring is driven via at least a double reduction of rotation relative to rotation of the motor, and the cable, the plurality of pulleys, and the ring provide a one-way mechanism.12-13-2012
20130090194REDUCING DEVICE HAVING A HIGH REDUCTION RATIO, ROBOT AND HAPTIC INTERFACE COMPRISING AT LEAST ONE SUCH REDUCING DEVICE - A reducing device having a cable or a belt and cable, providing a high reduction ratio, and including: two driving drums; two sheave wheels; at least one driving cable traveling from a first driving drum to one sheave wheel, from the one sheave wheel to the second driving drum, from the second driving drum to the other sheave wheel, and from the other sheave wheel to the first driving drum; a driven cable, including one strand which travels from a fork of the one sheave wheel to a driven wheel, and one strand which travels from the driven wheel to a fork of the other sheave wheel. The driving drums have different diameters and/or different rotation speeds so rotation thereof causes movement of the sheave wheels driving the driven cable, and rotation movement of the driven wheel. The reducing device is applicable, for example, to robots and haptic interfaces.04-11-2013
20110124449DECELERATION MECHANISM AND TRANSMISSION DEVICE UTILIZED THEREBY - A deceleration mechanism comprises a base, a transmission device rotatably connected to the base, and a driving device fixed to the base. The transmission device includes a driving assembly having a driving wheel and a driven assembly having a driven wheel. Diameter of the driven wheel is greater than that of the driving wheel. The driving device provides power to rotate the driving wheel. The transmission device further includes a transmission member wound on the driving wheel and the driven wheel. The transmission member winds on the driving wheel at least one winding, then criss-crosses and winds on the driven wheel.05-26-2011
474061000 POWER INPUT AND OUTPUT PULLEYS ON NONPARALLEL AXES 2
20100210383ACTUATOR - This invention relates to an actuator and has particular reference to linear and rotary actuators, particularly those for use in the control of robotic arms. The invention provides a relatively low cost means of achieving substantially backlashfree rotary and/or linear motion. There is provided an actuator (08-19-2010
20090098961Internal Combustion Engine, Vehicle Power Transmission System and Lawn Tractor Equipped With Them - An internal combustion engine comprises: a crankshaft; an oil pan; and an output shaft supported by the oil pan. The output shaft is disposed perpendicular to the crankshaft, and is drivingly connected to the crankshaft.04-16-2009
474201000 BELT HAVING DRIVE SURFACES ON OPPOSITE SIDE EDGES OF STACKED PLATES HAVING PLANAR FACES PERPENDICULAR TO DIRECTION OF BELT MOVEMENT 2
20080274848Drive Belt for a Transmission With Convex Pulley Sheaves - A drive belt for continuously variable transmission for motor vehicles is provided with two pulleys, each including two substantially conical pulley sheaves, between which the drive belt can be held at a variable radial position, which drive belt is provided with transverse elements (11-06-2008
20080254927Power Transmission Chain and Power Transmission Device Using the Same - A power transmission chain used in a power transmission device of the present invention includes: a plurality of link plates having through holes; and a plurality of pin members that are inserted through said through holes and connect said plurality of link plates to one another. An amount of skew in a chain width direction per chain length of 200 mm is 1 to 2 mm in the power transmission chain. Thus, even if misalignment occurs in the power transmission chain, occurrence of abnormal wear and reduction in transmission efficiency can be effectively prevented.10-16-2008
474001000 CONTROL FOR FORWARD AND REVERSE 1
20090291787POWER TRANSMISSION DEVICE - A power transmission device is capable of switching the rotation direction of a drive shaft between positive rotation and negative rotation as power is transmitted to the drive shaft from a drive source via the power transmission device. To cause positive rotation of the drive shaft, only the positive rotation belt is tensed by the belt switching means, and rotation from the positive rotation drive pulley is transmitted to the drive shaft via the positive rotation shaft. To cause negative rotation of the drive shaft, only the negative rotation belt is tensed by the belt switching means, and rotation from the negative rotation drive pulley is transmitted to the drive shaft via the negative rotation shaft.11-26-2009
474095000 HUB FORMED IN SECTIONS AND SEPARABLE BY MOVING SECTIONS RADIALLY APART (E.G., SPLIT PULLEY TO FACILITATE INSTALLATION, ETC.) 1
20100160097DIVISIBLE SPROCKET WHEEL - A sprocket wheel built up from at least two synthetic wheel parts (06-24-2010
474100000 AUXILIARY ENDLESS BAND FOR GUIDING BELT OR HOLDING BELT ENGAGED WITH PULLEY 1
20080318715DRIVE WHEEL OF AN AUXILIARY UNIT BELT DRIVE OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a drive wheel (12-25-2008

Patent applications in class Endless belt power transmission systems or components

Patent applications in all subclasses Endless belt power transmission systems or components