Class / Patent application number | Description | Number of patent applications / Date published |
464162000 | COUPLING FACILITATES RELATIVE AXIAL MOTION BETWEEN COUPLED MEMBERS | 61 |
20080214317 | DRIVESHAFT COMPRISING A COUNTER TRACK JOINT FEATURING A DELIMITED AXIAL DISPLACEMENT PATH - A constant velocity universal ball joint | 09-04-2008 |
20080254904 | VEHICLE DRIVE SHAFT - A vehicle drive shaft is disclosed that includes a sliding type constant velocity joint, a shaft member, a boot, and an insolating member. The sliding type constant velocity joint includes an outer ring having an accommodation chamber, and an inner ring accommodated in the accommodation chamber. The isolating member forms a pressure relaxation chamber in the outer ring so as to isolate the pressure relaxation chamber and the accommodation chamber from each other. When the pressure in the accommodation chamber is raised, the isolating member is displaced toward the pressure relaxation chamber by a pressure difference between the accommodation chamber and the pressure relaxation chamber, thereby increasing the volume of the accommodation chamber. When the pressure in the accommodation chamber is lowered, the isolating member is displaced toward the accommodation chamber by the pressure difference, thereby decreasing the volume of the accommodation chamber. | 10-16-2008 |
20080318693 | Longitudinal shaft - A longitudinal shaft for use in motor vehicles consists of a tubular part having joints on both ends, corresponding to a differential side and a transmission side. There is a differential shaft and a transmission shaft accommodated on the two ends. The two joints are disposed in accommodation regions provided on the two ends of the tubular part by way of their outer hubs in a torque-proof manner. The joints are configured as a displacement joint or as a fixed joint, which can be disposed in the tubular part of the longitudinal shaft in the combination of two displacement joints, one displacement joint and one fixed joint, or two fixed joints with displacement. | 12-25-2008 |
20090029783 | Axially adjustable driveshaft assembly and method of installing same - An axially adjustable driveshaft assembly includes a first section and a second section that engages the first section for relative axial movement. The first and second sections cooperating to define an internal chamber. A valve is provided on one of the first and second sections and provides fluid communication with the internal chamber. The valve may have a passageway portion formed therethrough and first and second sealing lip portions that normally engage one another so as to provide an air-tight seal therebetween. The axially adjustable driveshaft assembly may be installed in a drive train system by varying the pressure within the internal chamber so as to change the length defined by the axially adjustable driveshaft assembly to equal a length defined by the drive train system and installing the axially adjustable driveshaft assembly in the drive train system. | 01-29-2009 |
20090042657 | Torque Transmission Device - A torque transmission device is provided with an outer tube having a non-circular internal circumference and an inner tube having a non-circular external circumference inserted into the outer tube. The two tubes have a predefined rotational clearance as the result of a gap formed between the internal and the external circumference. At least one elastic wire cushion-like element is provided in the gap between the two tubes. The two tubes are displaceable in relation to one another, in the longitudinal direction of the tube, in such a way as to make possible length compensation, even under load. | 02-12-2009 |
20090082116 | RETAINER PIN FOR DRIVE SHAFT - The invention relates to a drive shaft ( | 03-26-2009 |
20090124399 | Universal joint - A universal joint includes a tube having a hollow shape; a slip bush inserted into the tube; and a shaft assembled with the tube through the slip bush, wherein the slip bush includes power transmission parts, which are arranged along an circumferential surface of the slip bush in an axial direction and have pins positioned at centers of the power transmission parts and supports supporting both ends of each pin, and elastic parts, which are arranged along the circumferential surface of the slip bush while being spaced from the power transmission parts and have a section with a C-shape, which is formed in such a manner that a side portion is cut out in the axial direction. Therefore, strength and rigidity are improved, even when twist is generated in the universal joint, so that clearance and noise due to abrasion, pressing, etc. can be minimized. | 05-14-2009 |
20090170616 | Automatic transmission - An automatic transmission that includes an input shaft; an output shaft; and a speed change mechanism portion that shifts a rotation of the input shaft to be transmitted to the output shaft, wherein: the output shaft has a spline formed in a range in which the output shaft fits in a power transmission shaft included in a vehicle, and n-stage (n is an integer of at least 2) chamfering is performed on a larger diameter portion of the spline. | 07-02-2009 |
20090181779 | TUBULAR MEMBER HAVING MULTIPLE SIZED SPLINES - A driveshaft assembly includes a tubular slip member having a first spline member having a plurality of splines formed thereon having a first tolerance and a second spline member having a plurality of spline sections. The plurality of spline sections includes a plurality of splines formed thereon having a second tolerance. The second spline member cooperates with the first spline member. A zone is disposed on the second spline member and has a first profile. The zone is disposed adjacent to at least one of the plurality of spline sections of the second spline member, and the first profile defines a clearance relative to the first spline member. | 07-16-2009 |
20090270188 | Telescopic Shaft for Vehicle Steering - A telescopic shaft for vehicle steering assembled into a steering shaft for a vehicle and having a female shaft and a male shaft that are so fitted to each other as to be unable to relatively rotate but to be slidable, the female shaft having its end portion attached with a seal member for preventing rain water etc from entering inside a fitting portion between the female shaft and the male shaft by sealing this fitting portion. The seal member is constructed of a high-rigidity support member and an elastic member, and an intermediate portion of the support member is bent, one end of the support member is a fixed portion fixed to the end portion of the female shaft, and at least an end portion on the other side of the support member is a fitted portion to which the elastic member is fitted so as to be in contact with an outer peripheral surface of the male shaft with frictional force. | 10-29-2009 |
20090280913 | POWER TRANSMISSION STRUCTURE - An open end of a sleeve (spline-fitted to a male yoke) remote from a connecting portion of the male yoke is closed by a first lid member. A through hole is formed axially through the male yoke, and includes a cylindrical first passage portion, and a cylindrical second passage portion which is disposed at that side of the first passage portion close to the first lid member and is smaller in inner diameter than the first passage portion. A second lid member is disposed to close that open end of the through hole remote from the first lid member. Air vent holes are formed through the second lid member to extend in an axial direction, and are disposed so as to partially overlap with a portion of an inner peripheral surface of the first passage portion in the axial direction. | 11-12-2009 |
20100029397 | SLIP JOINT FOR USE IN A DRIVE TRAIN SYSTEM - A sliding spline type of slip joint includes male and female splined members having portions that cooperate for concurrent rotational movement and for relative axial movement. A coating of a material is provided on the portion of the male splined member, and a plurality of ribs is provided on the coating of the material that cooperates with the portion of the female member. The ribs are separated by lands that do not cooperate with the portion of the female member. The pluralities of ribs may be circumferentially aligned with one another. | 02-04-2010 |
20100075766 | Shaft Assembly - A telescopable shaft assembly has at least two shaft elements capable of sliding in one another as an internal shaft element and an outer shaft element connected to one another in torque transmitting manner via at least one sliding splined portion. An axial fixation defines predetermined breaking point between the shaft elements. The axial fixation becomes ineffective once a predetermined impact force acting in a telescoping direction is reached. The shaft elements are movable relative to one another, once the axial fixation has become ineffective, in low-friction manner along the sliding splined portion under the action of the impact force. When the axial fixation is effective, an annular gap is formed between a splined portion runout on a free end of the outer shaft element and an unsplined portion of the inner shaft element. The annular gap, at least in the area of the free end of the outer shaft element, is at least partially filled with a sealant. | 03-25-2010 |
20100130291 | SPLINE SHAFT - A spline shaft that can suppress occurrence of stick slip by measures other than just simply making the surface roughness smaller. The spline shaft includes a first shaft with an outer-peripheral spline formed, and a second shaft with an inner-peripheral spline, which engages with the outer-peripheral spline peripherally and that is made slidable axially, formed. And, at least either one of the outer-peripheral spline and the inner-peripheral spline includes a substrate whose surface is formed to a predetermined surface roughness, and an amorphous carbon-system hard thin film, which coats and forms the surface of substrate. | 05-27-2010 |
20100130292 | Multi-part longidinal shaft for moto vehicles - A multi-part longitudinal drive shaft of a motor vehicle consists of two shaft sections that are each formed by a shaft tube connected with each other by a homokinetic displacement joint. The outer diameter of the shaft tube in the second shaft section is smaller than the inner diameter of the shaft tube of the first section. The outer joint ring of the homokinetic displacement joint is firmly connected with the shaft tube of the first shaft section and a ball hub of the joint is connected with the second shaft section. When a specific axial position is exceeded, the homokinetic displacement joint can be broken down. The individual parts of the two shaft sections can be displaced into one another, after break-down of the homokinetic displacement joint, so that the second shaft section is displaced in the direction of the first shaft section. | 05-27-2010 |
20100227698 | Bipod Flexure Ring - A thermal coupling includes a first structure having a first coefficient of thermal expansion; a second structure having a second coefficient of thermal expansion lower than the first coefficient of thermal expansion; a plurality of thermal expansion fingers provided in the first structure; a plurality of thermal expansion flanges extending from the plurality of thermal expansion fingers, respectively; and a flange extending from the second structure and attached to the plurality of thermal expansion flanges. | 09-09-2010 |
20100240463 | Shaft coupling - A rigid torque-transmitting coupling includes two members and a coating on one member or on carrier disposed between the members. The carrier has opposing contact faces disposed against a separate member connection face. The coating includes a fixing layer disposed on the connection member face or one carrier face, and a plurality of particles are disposed within the fixing layer to secure the particles on the member or carrier. Each particle has a hardness of at least 9 on the Mohs scale and at least twenty-five percent of the particles within any area of the coating extend outwardly from the fixing layer outer surface. Further, each member contacts either the other member or the coating carrier with a pressure of about 90 MPa and 180 MPa. The surface(s) carrying the coating are formed of a harder material than the member faces engaged by the coating. | 09-23-2010 |
20110034256 | Spline telescopic shaft, method for manufacturing spline telescopic shaft, and vehicle steering apparatus - A spline telescopic shaft includes an inner shaft having an outer tooth surface, and a cylindrical outer shaft having an inner tooth surface and arranged to fit to the inner shaft slidably in an axial direction of the inner shaft. Either one of the outer tooth surface and the inner tooth surface includes a first resin coating. The other of the outer tooth surface and the inner tooth surface includes a second resin coating. The second resin coating is formed by processing for sliding an intermediate member for manufacturing the inner shaft and an intermediate member for manufacturing the outer shaft in the axial direction, to transfer a part of a resin material provided in the intermediate member for manufacturing the shaft including the one tooth surface for forming the first resin coating to the intermediate member for manufacturing the shaft including the other tooth surface. | 02-10-2011 |
20110053697 | DUAL CLUTCH FOR A TRANSMISSION HAVING MULTIPLE INPUT SHAFTS - A device for transmitting torque between a flywheel rotatably connected to an engine and a dual clutch transmission. The device includes a first substantially u-shaped member fixed to a perimeter of a dual clutch of the dual clutch transmission. The first substantially u-shaped member defines a slot having an open end. The second substantially u-shaped member is attached to a perimeter of the flywheel. The second substantially u-shaped member includes a support member for supporting an engagement member. The first substantially u-shaped member fits at least partially within the second substantially u-shaped member. The pair of bushings disposed proximate the engagement member between the first and second coupling members. The engagement member of the second substantially u-shaped member is configured to engage the open end of the slot of the first substantially u-shaped member and align the first substantially u-shaped member with the second substantially u-shaped member thereby transferring torque between the flywheel and the dual clutch transmission. | 03-03-2011 |
20110269557 | System and method for connecting shafts of a wind turbine - The present disclosure relates to a plug shaft and/or a socket shaft for use in a shaft connection system of a wind turbine. The plug shaft includes a tapered plug end portion for engaging a tapered socket end portion in the shaft connection system. The socket shaft includes a tapered socket end portion for engaging a tapered plug end portion in the shaft connection system. The present disclosure also relates to a shaft connection system of a wind turbine. The shaft connection system includes a first shaft comprising a first tapered end portion and a second shaft comprising a second tapered end portion. | 11-03-2011 |
20120028723 | PROPELLER SHAFT - A propeller shaft includes a first shaft and a second shaft. The first shaft has a torque transmission face in which a plurality of fine grooves extending in a first direction (face width direction) is formed. The second spline shaft is coupled to the first spline shaft so as to be movable relative to the first spline shaft in the axial direction of the first spline shaft, and has a torque transmission face in which a plurality of second fine grooves extending in a second direction that crosses the first direction is formed. | 02-02-2012 |
20120108349 | Multi-Lobed and Constant Contact Gear Mechanism - A multi-lobed gear system is provided in which the lobes of an input gear and a corresponding, mating pair of lobes in an output gear are uniformly in contact. The lobed gear tooth profile of the present invention reduces material galling, shuttering and whipping within a drivetrain assembly in comparison to square or helical splines that incorporate single point contacts between meshed pairs. An internal pinion gear or slip yoke internal shaft employs a lobed gear tooth profile that forms a sinusoidal outer perimeter shape. The perimeter surface is in constant contact with the complementary shaft or gear across its entire surface. A small clearance gap may be provided for lubrication, fitment and manufacturing considerations. | 05-03-2012 |
20120165106 | Antifriction bushing - An antifriction bushing is provided for the bearing of a telescopable steering spindle having an inner spindle and an outer spindle which are disposed coaxially with respect to one another and displaceably with respect to one another and for the torque transmission have a cross section differing from circular. Between the outer spindle and the inner spindle, an interspace is provided for receiving the antifriction bushing consisting of a thermoplastic synthetic material or comprising such material. The bushing includes an inner surface and an outer surface, and consists of a mixture comprising the material PEEK and additionally at least one of the materials PTFE at a volume fraction of up to maximally 15% and/or graphite at a volume fraction of up to maximally 15% and/or carbon fibers at a volume fraction of up to maximally 40%. | 06-28-2012 |
20120283031 | PROPELLER SHAFT - A propeller shaft includes a first shaft having a yoke at one end, a second shaft slidably connected to the other end of the first shaft, and a surface treated member which is arranged at a connecting portion, at which the first shaft and the second shaft are connected to each other, and to which surface treatment for improving slidability of the second shaft with respect to the first shaft is applied. The surface treated member is formed by a substrate which is separate from the first shaft and the second shaft and to which the surface treatment has been applied. The surface treated member is arranged at the connecting portion, at which the first shaft and the second shaft are connected to each other, after the surface treatment is applied. | 11-08-2012 |
20130095933 | TORQUE TRANSMISSION DEVICE - There is provided a torque transmission device which connects two rotary shafts having shaft ends opposing each other, such that torque is transmitted through a torque transmission mechanism provided to a shaft end surface of each of the two rotary shafts. A first rotary shaft of the two rotary shafts has a double-supported structure where both end portions of the first rotary shaft are supported by bearings, respectively. A second rotary shaft of the two rotary shafts has a cantilever structure where only one end portion of the second rotary shaft opposite to the torque transmission mechanism is supported by a bearing, and the second rotary shaft is spaced from one bearing of the bearings supporting the first rotary shaft, the one bearing being provided at a side of the torque transmission mechanism. | 04-18-2013 |
20130102399 | STEERING SHAFT WITH MISASSEMBLY PREVENTION STRUCTURE - The present invention relates to a steering shaft, and more particularly, to a steering shaft which is provided with a misassembly prevention structure for preventing misassembly when a shaft is inserted into and assembled with a yoke. | 04-25-2013 |
20130116057 | Telescopic Shaft With Connection Element - A torque transmitting telescopic shaft ( | 05-09-2013 |
20130252748 | Propeller Shaft and Constant Velocity Universal Joint Used Therein - A propeller shaft is proposed which comprises an inner cylindrical member that has a center through bore into which a shaft is inserted; an outer cylindrical member disposed around the inner cylindrical member; a torque transmitting unit operatively disposed between the inner and outer cylindrical members; a sleeve member coaxially connected to the center through bore of the inner cylindrical member; a boot unit arranged to hermetically close one open side of an interior of the outer cylindrical member; and a positioning mechanism that effects a relative axial positioning between the shaft and the inner cylindrical member when a splined cylindrical outer wall of the shaft is inserted through the sleeve member into a given position of a splined cylindrical inner wall of the center through bore of the inner cylindrical member. | 09-26-2013 |
20140080614 | ROTATION TRANSMITTING APPARATUS, VEHICLE STEERING SYSTEM, AND INTERMEDIATE SHAFT - A rotation transmitting apparatus includes a first shaft on which multiple external teeth are formed so as to be arranged in a circumferential direction, and a second shaft in which multiple internal teeth are formed so as to be arranged in the circumferential direction, the second shaft being fitted to the first shaft so as to be slidable relative to the first shaft in the axial direction and so as to be engageable with the first shaft in a rotational direction through the use of the external teeth and the internal teeth. A protrusion is formed on the tooth flank of one of the external tooth and the internal tooth, the protrusion being projected toward the corresponding tooth flank of the other of the external tooth and the internal tooth. The protrusion is made of a resin that is more elastically deformable than the tooth flank. | 03-20-2014 |
20140187339 | TELESCOPIC SHAFT - A telescopic shaft includes a male shaft having an outer circumference on which a plurality of protruding teeth are formed, and a female shaft having an inner circumference on which a plurality of tooth grooves are formed. The tooth grooves of the female shaft are fitted onto the protruding teeth of the male shaft such that the male shaft and the female shaft are relatively slidable in an axial direction and such that a rotational torque is transmittable between the male shaft and the female shaft. One of a curvature radius of a tooth surface of the protruding teeth and a curvature radius of a tooth surface of the tooth grooves is smaller than the other of the curvature radius of the tooth surface of the protruding teeth and the curvature radius of the tooth surface of the tooth grooves. | 07-03-2014 |
20140200086 | TELESCOPIC SHAFT - A telescopic shaft includes a male shaft having an outer circumference formed with a plurality of protruding teeth, and a female shaft having an inner circumference formed with a plurality of tooth grooves and fitted onto the male shaft. The protruding teeth and the tooth grooves are engaged such that the male shaft and the female shaft are relatively axially slidable and a rotational torque is transmittable between the male shaft and the female shaft. At least one of the male shaft and the female shaft is configured such that the radial rigidity of a portion of the at least one of the male shaft and the female shaft in an axial range of a region where the protruding teeth and the tooth grooves are engaged is lower than the radial rigidity of another portion of the at least one of the male shaft and the female shaft. | 07-17-2014 |
20140378236 | DOUBLE ENDED EXTENDABLE DRIVESHAFT FOR AUTO HEADER HOOKUP - A double ended extendable driveshaft ( | 12-25-2014 |
20150141160 | HOLDER FOR A MEDICAL, IN PARTICULAR A SURGICAL INSTRUMENT - A holder for a medical instrument having a quick coupling for receiving a connection end of the instrument's shaft. The quick coupling has a first coupling element having a first axial through-hole for the connection end and a second coupling element having a second axial through-hole for the connection end. The second coupling element is movable relative to the first coupling element in a direction crosswise to the axial direction of the through-holes from a locked position, in which the through-holes are offset so that an edge of the second through-hole engages behind an undercut on the shaft's connection end in a locking manner, to a release position, in which the through-holes lie in alignment and the connection end is freely guidable through both through-holes. A spring bridge connects the first and second coupling elements together and preloads the first and second coupling elements into the locked position. | 05-21-2015 |
20160003303 | COLLAPSIBLE SHAFT ASSEMBLY WITH FLANGED SLOTS - A drive shaft assembly for a vehicle includes a first tubular member and a second tubular member that is received by the first tubular member defining a coaxial relationship. The first tubular member defines a plurality of protuberances with each of the protuberances defining a side wall and the second tubular member defines a plurality of apertures with each of the apertures defined by a flange circumscribing the aperture and extending radially inwardly of second tubular member. Each aperture receives a protuberance so that the protuberance abuts the sidewalls of the aperture affixing the first tubular member to said second tubular member in a substantially fixed circumferential orientation. | 01-07-2016 |
20160069395 | INTERMEDIATE SHAFT - In an intermediate shaft for a steering system, the surface of external splines of an inner shaft is coated with a resin coating layer containing a base resin and two or more kinds of higher fatty acid metal salts having different melting point peaks from each other. | 03-10-2016 |
20160084317 | POWER TRANSMISSION SHAFT AND PROPELLER SHAFT FOR VEHICLE - A power transmission shaft has a shaft member having, on an outer peripheral surface thereof, a male spline; a cylindrical member having, on an inner peripheral surface thereof, a female spline; and a seal member provided in a pressed state between an outer peripheral seal surface formed on the outer peripheral surface of the shaft member and an inner peripheral seal surface formed on the inner peripheral surface of the cylindrical member. The cylindrical member is spline-engaged with the shaft member by one end side of the shaft member being inserted into the cylindrical member from an other end side of the cylindrical member. Axial direction shock is absorbed by sliding of the splines. The outer peripheral seal surface is positioned at the other end side with respect to the male spline, and the inner peripheral seal surface is positioned at the other side with respect to the female spline. | 03-24-2016 |
20160153500 | SLIDING SHAFT AND STEERING DEVICE | 06-02-2016 |
20160153501 | SLIDING SHAFT AND STEERING DEVICE | 06-02-2016 |
20160169289 | GEARBOX AND DISASSEMBLY METHOD FOR DISENGAGING A DRIVE SHAFT IN SUCH A GEARBOX | 06-16-2016 |
20160186798 | TELESCOPIC SHAFT - A telescopic shaft includes a male shaft having an outer circumference formed with a plurality of protruding teeth, and a female shaft having an inner circumference formed with a plurality of tooth grooves and fitted onto the male shaft. The protruding teeth and the tooth grooves are engaged such that the male shaft and the female shaft are relatively axially slidable and a rotational torque is transmittable between the male shaft and the female shaft. At least one of the male shaft and the female shaft is configured such that the radial rigidity of a portion of the at least one of the male shaft and the female shaft in an axial range of a region where the protruding teeth and the tooth grooves are engaged is lower than the radial rigidity of another portion of the at least one of the male shaft and the female shaft. | 06-30-2016 |
20190145456 | TELESCOPIC STEERING SHAFT WITH A PULL-OUT SAFEGUARD | 05-16-2019 |
464163000 | Coupling between rotary drive table and axially movable drill string | 1 |
20100069167 | Kelly driver - A kelly driver has a top ring and a plurality of split bushings. The a top ring has a top surface, a bottom surface, a drive lug extending from the bottom surface, and a central passage extending through the top and bottom surfaces. The drive lug has a notch within an end face thereof. A first one of the split bushings has a drive lug extending outwardly from a side surface thereof. Adjacent pairs of the split bushings have end portions thereof pivotably connected to each other through a respective hinge structure. Each hinge structure includes a respective connection pin about which adjacent pair of the split bushings are pivotably connected. An upper surface of each one of the split bushings is engaged with the bottom surface of the top ring with the drive lug of the first one of the split bushings positioned within the drive lug of the top ring. | 03-18-2010 |
464167000 | Coupler includes antifriction rolling body engageable with axially moveable member | 18 |
20090176587 | Propshaft With Constant Velocity Joint Attachment - A propeller shaft assembly includes a substantially cylindrical hollow propeller shaft, a stub shaft and a constant velocity joint having inner race and an outer race drivingly interconnected by a plurality of balls. The stub shaft has a first end fixed to the propeller shaft and a second end drivingly coupled to the inner race. The second end includes a portion positioned adjacent to the inner race that defines an outer diameter greater than an outer diameter defined by the interface between the inner race and the plurality of balls. | 07-09-2009 |
20090203455 | Extendable Shaft and Motor Vehicle Steering Apparatus - An extendable shaft ( | 08-13-2009 |
20090280914 | Telescopic shaft and vehicle steering apparatus - A telescopic shaft ( | 11-12-2009 |
20100124995 | Rolling-Sliding Unit and Jointed Shaft Comprising the Same - A rolling-sliding unit, particularly for a jointed shaft, including a profiled sleeve ( | 05-20-2010 |
20100130293 | TELESCOPIC SHAFT - The invention relates to a telescopic shaft for vehicles comprising an inner shaft ( | 05-27-2010 |
20100151950 | ROLLING ELEMENT SHAFT ASSEMBLY - A shaft assembly includes a first shaft member and a second shaft member telescopically engaged with the first shaft member. A roller carrier supporting a plurality of rollers is disposed between the first and second shaft members. The first shaft member defines a first slot extending along and angled relative to a longitudinal axis. The second shaft member defines a second slot extending along and angled relative to the first slot and the longitudinal axis. The roller carrier defines a carrier slot extending transverse to the longitudinal axis. A pin extends through the first slot, the second slot and the carrier slot and moves the roller carrier at a slower speed than the relative movement speed between the first shaft member and the second shaft member during telescoping movement. A wedge is disposed between the first shaft member and a portion of the rollers to de-lash the shaft assembly. | 06-17-2010 |
20110098121 | BALL COUPLING DEVICE WITH HINGED CONNECTION FOR TWO SLIDING SHAFTS - The invention relates to a device for coupling an inner shaft and an outer shaft sliding in the direction of a common axis thereof, with balls provided between the two shafts. The balls are arranged in axial grooves of the inner shaft and in axial grooves of the outer shaft. Each row of balls is maintained by a double elastic member that bears in the groove of the inner shaft and urges the balls along two rolling tracks so that they come into contact with the groove of the outer shaft, wherein each of the two rolling tracks is hinged through a pivot surface and a bearing surface of the corresponding shaft, and the difference between the radii defines two bearing areas defining a hinge axis parallel to the common axis. | 04-28-2011 |
20130079165 | Ball-Type Coupling Device For Coupling Two Sliding Shafts With Pivoting Support - Device for coupling an inner shaft and an outer shaft which slide along their common axis with balls positioned between the two shafts. The balls rest directly in axial grooves of the outer shaft and on two rails positioned in axial grooves of the inner shaft. The two rails pivot about the balls, by pressing against flanks of mating curved profile of the axial groove, and are held in place by an elastic element which presses against the bottom of the axial groove. | 03-28-2013 |
20130095934 | BALL COUPLING DEVICE WITH HINGED CONNECTION FOR TWO SLIDING SHAFTS - The invention relates to a device for coupling an inner shaft and an outer shaft sliding in the direction of a common axis thereof, with balls provided between the two shafts. The balls are arranged in axial grooves of the inner shaft and in axial grooves of the outer shaft. Each row of balls is maintained by a double elastic member that bears in the groove of the inner shaft and urges the balls along two rolling tracks so that they come into contact with the groove of the outer shaft, wherein each of the two rolling tracks is hinged through a pivot surface and a bearing surface of the corresponding shaft, and the difference between the radii defines two bearing areas defining a hinge axis parallel to the common axis. | 04-18-2013 |
20130143678 | Slip Joint and Method for Assembling the Same - A slip joint comprising, a female portion comprised of four axially extending segments. The segments together create an outer perimeter. Each of the combined segments together form an inner surface of the female portion and each has its own ball tracks extending substantially the length of the female portion. A unitary male portion has an outer surface defined by a plurality of axially extending ball tracks. A unitary cage is located radially outward from the male portion and radially inward from the female portion. The cage has a plurality of ball apertures with balls located in the ball apertures. The balls are in contact with both the ball tracks in the male and female portions for selective movement of the male portion with respect to the female portion. A tube member is in direct radial outer contact substantially entirely along the outer perimeter of the female portion. | 06-06-2013 |
20140171209 | TELESCOPING SHAFT ROLLER ASSEMBLY IN STEERING COLUMN - A telescoping shaft in a steering column in a steering column is provided. The telescoping shaft includes an outer shaft having a bore extending in a longitudinal direction, an inner shaft telescopically received in the bore, the inner shaft rotationally fixed relative to the outer shaft and moveable relative to the outer shaft in the longitudinal direction, and at least one roller assembly positioned between the inner shaft and outer shaft. Each roller assembly of the at least one the roller assembly includes a spring having a first end and a second end spaced apart from the first end, a first roller positioned on the first end of the spring, and a second roller positioned on the second end of the spring, the spring urging the first roller and the second roller into contact with the outer shaft. | 06-19-2014 |
20140248967 | SPLINED GEARING - In a splined drive wherein the teeth of a male spline and the teeth of a female spline are interposed in driving relation, a plurality of friction inhibitors in a string interposed between at least some of said male splined teeth and said female splined teeth and stops disposed at either end of said string of friction inhibitors to limit longitudinal travel of the string, with springs, or other elastic devices, interposed between the string of friction inhibitors and stops to center the friction inhibitors between the stops. | 09-04-2014 |
20140349772 | ROLLING ELEMENT INTERMEDIATE SHAFT ASSEMBLY - In one aspect, a rolling element intermediate shaft assembly is provided. The assembly includes a solid shaft having a first end and a second end and a tubular shaft configured to receive the shaft first end. The tubular shaft includes an inner wall with an axially extending groove formed therein, and the axially extending groove includes an inner surface. The assembly further includes a wear plate having a bottom surface and defining an axially extending channel, the wear plate being received in the tubular shaft axially extending groove, and at least one ball bearing disposed within the wear plate channel between the wear plate and the solid shaft. | 11-27-2014 |
20150057091 | RETAINER CAP FOR SHAFT ASSEMBLY - In one aspect, a retainer cap for a rolling element shaft assembly having a yoke, a solid shaft, and a tubular shaft is provided. The retainer cap includes a body having a first end, a second end, an outer surface, and an inner surface defining an internal cavity to receive the tubular shaft, an axial end surface disposed at the first end and defining a first opening to receive the solid shaft, and a second opening defined in the body second end to receive the tubular shaft after insertion through the first opening. The retainer cap further includes a first tab extending from the axial end surface into the internal cavity, and a second tab extending from the axial end surface into the internal cavity. | 02-26-2015 |
20150094158 | ROLLING-ELEMENT TELESCOPING SHAFT ASSEMBLY - A drive-shaft-connecting, torque-transmitting telescoping shaft assembly is provided. The assembly includes an outer shaft member extending along a longitudinal axis and defines an interior bore and inner surface. An inner shaft member is at least partially disposed within the bore and telescopically moveable relative thereto along the axis and defines an outer surface. Rolling-element outer grooves are arranged in the inner surface, distributed around the axis, and functional (i.e., used for transmitting a torque). Outer recesses are defined between the outer grooves and define a shorter distance between adjacent torque-transmitting outer grooves. Rolling-element inner grooves are defined on the outer surface and distributed around the axis. Rolling elements are rollingly arranged in the outer and inner grooves and rollingly engage the outer and inner shaft members during telescoping movement of the shaft assembly to reduce friction therebetween. | 04-02-2015 |
20160131196 | TELESCOPIC SHAFT - A telescopic shaft includes an inner shaft and a cylindrical outer shaft that are fitted together. A first raceway groove extending in the axial direction is formed in an outer peripheral surface of the inner shaft. A second raceway groove extending in the axial direction and facing the first raceway groove is formed in an inner peripheral surface of the outer shaft. A plurality of balls interposed between the first and second raceway grooves and arranged in a row in the axial direction roll in a first stroke range in the axial direction with respect to the inner shaft and roll in a second stroke range in the axial direction with respect to the outer shaft as the inner and outer shafts move relative to each other in the axial direction. The depth of the first raceway groove decreases from the middle toward both ends of the first stroke range. | 05-12-2016 |
20160138644 | SPLIT BALL SLEEVE - In one aspect, a rolling element shaft assembly is provided. The rolling element shaft assembly includes a solid shaft having a first end and a second end, a tubular shaft configured to receive the shaft first end, and a bearing sleeve coupled to the solid shaft. The bearing sleeve includes a first portion defining a first edge, a second edge, and at least one first bearing aperture, and a second portion defining a third edge, a fourth edge, and at least one second bearing aperture. The first portion is configured to couple to the second portion about the solid shaft. The bearing sleeve further includes at least one first bearing disposed within the at least one first bearing aperture and at least one second bearing disposed within the at least one second bearing aperture. | 05-19-2016 |
464168000 | Recirculating rolling bodies | 1 |
20110111867 | BALL SPLINE - There is provided a ball spline in which a difference between a P.C.D. of loaded balls and a P.C.D. of circulating balls can be made smaller, without making a spline shaft different in diameter. | 05-12-2011 |
464169000 | Including spring to bias member in axial direction | 1 |
20110159970 | CARTRIDGE - A cartridge includes a casing, a rotatable member rotatably supported by the casing, a protruding member configured to advance and retract in directions parallel to an axis of rotation of the rotatable member, and an urging member configured to urge the protruding member to advance in an advancing direction. The protruding member has a perticular sloping surface configured to be contacted in a direction orthogonal to an axis of rotation of the protruding member when the cartridge is mounted. The perticular sloping surface slopes with respect to directions parallel to and orthogonal to the axis of rotation of the protruding member. | 06-30-2011 |