Abstract: The wide-angle constant velocity joint (100) includes: a central core (101) forming respective inner yokes (24, 25) for connection and in which there is housed a guide disc (11); and outer yokes (103, 105). The central core (101) forms a lubricant reservoir (1) in communication with an annular seat (7) in which the guide disc (11) is slidingly received.

Abstract: The present invention provides a wide angle joint including: a pair of yoke shafts mounted on opposite sides thereof to transmit power from the one side to the opposite side, each yoke shaft having a ball end portion provided on a first yoke part to which a spider is coupled; a plate having a large-diameter part formed in the middle thereof and protruding parts protruding from the large-diameter part in the opposite axial directions while being reduced in a radially inward direction, wherein the protruding parts have insertion recesses into which the ball end portions of the yoke shafts are inserted, and the large-diameter part is faulted to have different widths in radial directions from the central portion thereof; and a pair of coupling yokes, each of which has a second yoke part connected with the first yoke part through the spider and a support recess into which the large-diameter part of the plate is inserted.

Abstract: An apparatus for thermally bonding together a cover film of an ophthalmic lens package and a base part of the package, including a carrier for supporting the base part with film arranged thereon; a bonding unit above the carrier having a mounting plate with a bonding stamp extending therefrom, the bonding stamp having a mounting portion fixedly attached to the mounting plate, a bonding head arranged beneath the mounting portion with a heatable bonding contour on a side of the bonding head facing the carrier, and an articulated connector arranged between and connecting the mounting portion and the bonding head; and an actuator for performing movement of the carrier and the bonding stamp towards and away from each other for thermally bonding the film with the base part by pressing the heated bonding contour against the film and subsequent separation of the bonding head from the cover film bonded to the base part, the articulated connector being a cardanic joint with two rotational axes.

Abstract: A system and method for providing a variable compression ratio internal combustion engine is disclosed. The system can include a crankshaft pivotally coupled to a standard engine block using a plurality of pivoting main bearing caps. The system can pivot the main bearing caps, and thus the crankshaft, to increase or decrease the compression ratio of the engine. The system can also include a plurality of actuators to move one end of the main bearing caps. The crankshaft can comprise one or more flexible joints to enable the crankshaft to move, while the output(s) of the crankshaft remain stationary to enable conventional sealing and power take-off. The compression ratio can be varied continuously during use and can be included in an overall engine management system.

Abstract: A universal coupling is provided that aims to achieve constant velocity between the input and output shafts. The universal coupling also aims to increase the angle between input and output shafts over conventional double Cardan joints while maintaining constant velocity or near constant velocity therebetween. The universal coupling can employ a Sarrus type linkage in-between two universal joints of the Cardan type in a configuration that aims to achieve joint angles up to and including 90 degrees in the Y-Z plane, while maintaining constant velocity or near constant velocity therebetween.

Abstract: A constant-velocity joint assembly includes: a first and a second shaft portions respectively provided with a protrusion; a double yoke portion in which a guide hole is formed along an axis direction, the first and the second shaft portions being respectively rotatably connected to both sides of the guide hole with an axis of an upper/lower direction; and a guide portion which is disposed to the guide hole to guide the protrusion and rotates along an inner circumference of the guide hole during rotation of the shaft portions, wherein the first and the second shaft portions respectively comprises: a spider body, a left and a right leg, and an upper and a lower legs; a shaft provided with the protrusion; and a yoke block comprising a block body, and a left and a right connecting member.

Abstract: A universal joint with improved ball lubrication, the improvement wherein each yoke has a ball head at an inward end of the yoke, the centering plate has a tube in which the ball heads of the yokes are slideably received to establish a slideable connection between the ends of the yokes and the centering plate, and the lubricant is supplied from the second passageway to an interior of the tube. A shield substantially encloses the joint in combination with the tractor master shield and has lubrication fitting access holes.

Abstract: A coupling yoke for a double cardan joint, which is able to achieve effective weight reduction while ensuring necessary torsional stiffness, is provided. A coupling yoke for a double cardan joint includes: a pair of mutually facing flange portions each of which has a bearing hole for allowing a shaft portion, which is one of two shaft portions of each spider, to be rotatably installed and that protrude from each of both axial ends of a base portion in the axial direction. The base portion has a thick wall portion that couples the bearing holes of the diagonally arranged flange portions and that has an X shape when viewed in a direction along an axis of the shaft portion, which is the other one of the shaft portions of each spider and trimmed portions between adjacent thick portions of the X-shaped thick wall portion.

Abstract: Disclosed is an exemplary constant velocity joint having a first universal joint attached to a first shaft and a second universal joint attached to a second shaft. A centering mechanism pivotally connects the first shaft to the second shaft and is disposed between the first and second universal joints. The centering mechanism includes a ball-shaped member attached to the second shaft and a concave bearing member attached to the first shaft for receiving the ball-shaped member. The bearing member has a conical-shaped inside surface that engages a spherical outside surface of the ball-shaped member.

Abstract: Universal joint (100) includes a centering mechanism (100A) for supporting the universal and forcing the two joint halves to operate at the same angle thereby causing the joint to operate at constant velocity at all angles. Each shaft (134, 135) of the joint (100) is rotatably connected to the centering mechanism (100A). Movement of one of the shafts (134, 135) at an angle relative to the longitudinal axis of the coupling yoke (136) is transmitted to the other shaft (135, 134) by the centering mechanism (100A) and the centering mechanism (100A) causes the other shaft (135, 134) to likewise move at the same angle relative to the longitudinal axis of the coupling yoke (136). The centering mechanism(100A) includes cam rods (102, 103) supported within a cam tube (101), which arrangement allows a full range of movement of the shafts (134, 135) at angles of 90°.

Abstract: An arrangement, comprising two shaft ends (1, 2), which are mutually connected by a coupling element (3) so as to transmit torque, the coupling element (3) being associated with a bearing (4), which receives at least one shaft end (1), the bearing (4) comprising a support body (5) for the shaft end (1) and an outside body (6) surrounding the support body, and an elastic deformable layer (7) being disposed between the support body (5) and the outside body (6), with the aim of creating an arrangement that guarantees the lowest possible cardan rigidity while achieving maximum radial rigidity, is characterized in that the elastic layer has at least in part a spherical configuration. A bearing also has at least in part a spherically configured layer.

Abstract: A compact heavy duty double universal joint is disclosed. The joint comprises a torque coupler having an interior bore and a pair of bosses adjacent each end, a pair of collars pivotally connect to the bosses, a pair of yokes pivotally connect to the collars and a centering rod assembly in the bore of the coupler. The centering rod assembly is operable, when the operating angle of the joint is not zero, to position the torque coupler so that it splits the operating angle of the universal joint.

Abstract: A universal joint comprises first and second joint yokes, each joint yoke having axially opposite yoke arms, and inner and outer sides with respect to an axis of symmetry of the joint; first and second connection elements, each having transverse arms for connecting the connection element to yoke arms of a respective joint yoke and a base web extending beyond the transverse arms in a direction away from the axis of symmetry of the joint; and an elastic coupling element guided around outer sides of the joint yokes and connected to the base web of each connection element at a location beyond the transverse arms in a direction away from the axis of symmetry of the joint.

Abstract: A universal joint includes first and second yoke members each having a pair of spaced arms. A coupler includes a positioning hole in which an engaging member is received. Two pair of pins are extended through the arms of the first and second yoke member and through pin holes of the coupler into the positioning hole, allowing the first and second yoke members to respectively pivot about first and second pivot axes that are perpendicular to and intersect each other. The engaging member is movable between an engaged position engaged with the four pins and a free position disengaged from the four pins allowing detachment of the four pins.

Abstract: A universal joint has a ball retainer having a retainer body made of a structurally rigid material and a relatively soft elastomeric seal bonded to the body at an axial end in a recess so as to wipe lubricant back on the ball that is retained by the body. Cavity plates in a housing of the universal joint partially close off lubricant reservoir recesses to retain lubricant in the reservoirs and act as wear plates that stabilize the centering plate orbiting in the recess. Seals can be provided between the retainer and the ball socket, between the centering plate and the wear plates and between the wear plates and the cavity plates. Passageways connect the center cavity of the housing with the ball sockets through an orifice.

Abstract: A coupling device used for driving or in the drives of, agricultural implements or machinery, has a first universal joint (2) with a first outer yoke (3) a first inner yoke (4), a second universal joint (5) with a second outer yoke (6) and a second inner yoke (7). A connecting member (8) connects the first inner yoke (4) and the second inner yoke (7) to one another in a rotationally fast way. A first coupling element (12) is connected to the first outer yoke (3) in a rotationally fast way. A pressure spring (16) is axially supported against and pretensioned between a supporting element (15), which forms part of the connecting member (8), and the first coupling element (12). A longitudinal adjusting member enables an axial displacement of the first coupling element (12) relative to the supporting element (15).

Abstract: A centering device for a double Cardan universal joint is comprised of a disc-shaped body having a first and second annular face and an annular rim extending about a central axis. A first hollowed protrusion is centrally located on the first annular face, and a second hollowed protrusion is centrally located on the second annular face. A plurality of bearings are built into the disc-shaped body, extending circumferentially about the central axis. The bearings may be contained within two races, with one race located on each annular face, or the bearings may be contained within holes or slots built into the disc-shaped body.

Abstract: The joint comprises two spiders 18 and a central core 16 forming a housing 24 for the sliding movement—in a transverse plane—of a basically discoidal constraint member 20 forming the seats 20A for the spherical end heads 1 OC, 14C of the two forks. The constraint member 20 moves about inside the housing 24. Between each of the two surfaces 24A, 24B and the opposing face of the constraint member 20, an elastic laminar ring 40 shaped like a Belleville washer is interposed, its annular edges being in continuous annular contact with the surface 24A or 24B and with the opposing face of the constraint member 20.

Abstract: A double-jointed cardan shaft for vehicles includes a first yoke journal assembly disposed in a first fork joint, the first fork joint including a ball calotte, a second yoke journal assembly disposed in a second fork joint, and a connection element connecting the first and second fork joints. A centering ball is disposed in the ball calotte and has a bore. A first cavity is formed between the centering ball and the ball calotte. An elastic gasket disposed outside of the ball calotte forms a second cavity between the elastic gasket and the ball calotte. A centering pin is connected to the second fork joint and disposed in the bore, and a plurality of lubricant recesses for a lubricant are disposed at an interface between the centering pin and the bore. The centering ball includes at least one indentation extending along an outer circumferential surface of the centering ball such that no lubricant may pass from the first cavity to the second cavity.

Abstract: The joint comprises two spiders (10, 14) and a central core forming a cavity for sliding movement in a transverse plane for two constraint members (120) with seats (120A) for the spherical heads (10B; 14B) on the ends of the two forks (10, 14); a divider (150) divides said cavity into two housings (124) for the two constraint members (120).

Abstract: A steering shaft universal joint assembly for motor vehicles as provided. Shaft ends are fastened against rotation in the joint, the ends being held in a housing joint adjoining the two joints with interposition of a ball joint so that the ball of the ball joint is mounted for rotation about its center point in a socket of one shaft end and is slidingly movable in a direction of the shaft axis of the other shaft end. The ball is resiliently mounted in the socket and the socket receives a slide bushing.

Abstract: A centered double universal joint has a first outer joint yoke (1) with first centering means (4, 6), a first inner joint yoke (8), a first cross member (10) connecting the first outer joint yoke (1) via rolling bearings (11) to the first inner joint yoke (8), and a first lubricant channel (44) for lubricating the rolling bearing (11). Also, the joint has a second outer joint yoke (12) with second centering mechanism (15, 17), a second inner joint yoke (19), and a second cross member (21) connecting the second outer joint yoke via rolling bearings (22) to the second inner joint yoke (19). A guiding disc (25) has a first central centering projection (28) articulatably connected to the first centering means (4,6). The guiding disc has a second central centering projection (29) articulatably connected to the second centering means (15, 17). Guiding faces (32, 33) on the guiding disc (25) are radially adjustably guided in an annular recess (24) of a housing (9, 20).

Abstract: A cardan joint is provided with a centering disk that is moveable relative to the intermediate coupling member. The invention also provides a centering disk including a plurality of tabs to support movement of the centering disk relative to the intermediate coupling member. The invention also provides a spring positioned in the centering disk to outwardly bias the ends of the shaft to maintain the contact between the shaft and the centering disk. The invention also provides means for biasing the centering disk relative to the intermediate coupling member.

Abstract: A steering shaft double joint for motor vehicles includes two shaft ends each connected nonrotatably in a respective first and second joint. The first and second joints are operatively arranged in a housing to movably mount the two shaft ends. A ball joint is arranged between the first and second joints, wherein the ball joint includes a ball arranged on one of the shaft ends and a receptacle arranged on the other shaft end. The ball is arranged in the receptacle, and is rotatable around the midpoint of the ball and slidably movable in a direction of a shaft axis of the other shaft end. A plastic sliding guide is disposed between the receptacle and the ball, and a spring surrounds radially the plastic sliding guide and is disposed radially between the plastic sliding guide and the receptacle.

Abstract: The joint comprises two spiders (10, 14) and a central core forming a cavity for sliding movement in a transverse plane for two constraint members (120) with seats (120A) for the spherical heads (10B; 14B) on the ends of the two forks (10, 14); a divider (150) divides said cavity into two housings (124) for the two constraint members (120).

Abstract: The joint comprises two spiders 18 and a central core 16 forming a housing 24 for the sliding movement—in a transverse plane—of a basically discoidal constraint member 20 forming the seats 20A for the spherical end heads 10C, 14C of the two forks. The constraint member 20 moves about inside said housing 24. Between each of said two surfaces 24A, 24B and the opposing face of said constraint member 20, an elastic laminar ring 40 shaped like a Belleville washer is interposed, its annular edges being in continuous annular contact with said surface 24A or 24B and with said opposing face of the constraint member 20.

Abstract: A cardan joint is provided with a centering disk that is moveable relative to the intermediate coupling member. The invention also provides a centering disk including a plurality of tabs to support movement of the centering disk relative to the intermediate coupling member. The invention also provides a spring positioned in the centering disk to outwardly bias the ends of the shaft to maintain the contact between the shaft and the centering disk. The invention also provides means for biasing the centering disk relative to the intermediate coupling member.

Abstract: A double-jointed cardan shaft for vehicles includes a first yoke journal assembly disposed in a first fork joint, the first fork joint including a ball calotte, a second yoke journal assembly disposed in a second fork joint, and a connection element connecting the first and second fork joints. A centering ball is disposed in the ball calotte and has a bore. A first cavity is formed between the centering ball and the ball calotte. An elastic gasket disposed outside of the ball calotte forms a second cavity between the elastic gasket and the ball calotte. A centering pin is connected to the second fork joint and disposed in the bore, and a plurality of lubricant recesses for a lubricant are disposed at an interface between the centering pin and the bore. The centering ball includes at least one indentation extending along an outer circumferential surface of the centering ball such that no lubricant may pass from the first cavity to the second cavity.

Abstract: A centered double universal joint has a first outer joint yoke (1) carrying a first cylindrical bearing journal (4). A unit including a first bearing ball (6) and a first bearing race (25) are secured on the journal (4). Via a cylindrical outer face (33), first bearing race (25), the unit is positioned in a bearing bore (24) of a guiding projection (23) of a guiding disc (22). Accordingly, a surface to surface contact is achieved between the cylindrical outer face (33) and the bearing bore (24) as well as between the hollow spherical bore (32) of the bearing race (26) and the spherical outer face (17) of the bearing ball (16). The other outer joint yoke is provided with a similar bearing ball and a bearing race arrangement.

Abstract: A steering shaft double joint is provided for motor vehicles where the shaft ends are connected non-rotatably in the joint. Each of the shaft ends is movably mounted in a housing connecting two joints with the shaft ends being connected by a ball joint so that the ball is rotatable around a midpoint in a receptacle of a shaft end and is slightly movably mounted in a direction of the shaft axis of the other shaft end. The ball is spring mounted in the receptacle and the receptacle contains and surrounds a bushing with elastic material located between the receptacle and bushing.

Abstract: A steering shaft double joint is provided for motor vehicles where the shaft ends are connected non-rotatably in the joint. Each of the shaft ends is movably mounted in a housing connecting two joints with the shaft ends being connected by a ball joint so that the ball is rotatable around a midpoint in a receptacle of a shaft end and is slightly movably mounted in a direction of the shaft axis of the other shaft end. The ball is spring mounted in the receptacle and the receptacle contains and surrounds a bushing with elastic material located between the receptacle and bushing.

Abstract: A joint assembly and a joint socket sleeve. The joint assembly includes a first yoke including a ball portion, a second yoke including a socket portion and a socket sleeve. The socket sleeve has a continuous side wall defining an opening for receiving the ball portion. A portion of the side wall is flexible. In some constructions, flat surfaces and/or grooves are formed on the outer surface of the socket sleeve. In some constructions, ribs are formed on the outer surface of the socket sleeve.

Abstract: A metal sheet is cut to provide an elongated blank having five regions defined along the length of the elongated blank, the defined regions being a central region, two end regions, and an intermediate region between the central region and each of the two end regions. The elongated blank is bent such that the two end regions overlap and provide a mounting for a shaft and such that a pivot member to be mounted on the central region of the elongated blank will be in alignment, axially, with respect to the shaft. Bores may be formed in the intermediate regions for mounting of a cross-piece to pivotably connect the yoke to a coupling member.

Abstract: A centered double universal joint has a first outer joint yoke 1 with first outer yoke arms 2 connected to one another by a first bridge 3. A first cenering mechanism 4, 6 is on the first bridge 3. A first inner joint yoke 8 couples with the first inner yoke arms. A first cross member 10 connects the first outer yoke arms 2 to the first inner yoke arms. The first cross member 10 has a first lubricant supply 44, 47. A second outer joint yoke 12 with second outer yoke arms 13 are connected to one another by a second bridge 14. Second centering mechanism 15, 17 is on the second bridge 14. A second inner joint yoke 19 couples with the second inner yoke arms. A second cross member 21 connects the second outer yoke arms 13 to the second inner yoke arms. The second cross member 21 has a second lubricant supply 44′, 47′. A guiding disc 25, defining a longitudinal axis 31, has a first central centering projection 28 articulatably connected to the first centering means 4, 6.

Abstract: A centered double universal joint has a first outer joint yoke (1) with first centering means (4, 6), a first inner joint yoke (8), a first cross member (10) connecting the first outer joint yoke (1) via rolling bearings (11) to the first inner joint yoke (8), and a first lubricant channel (44) for lubricating the rolling bearing (11). Also, the joint has a second outer joint yoke (12) with second centering mechanism (15, 17), a second inner joint yoke (19), and a second cross member (21) connecting the second outer joint yoke via rolling bearings (22) to the second inner joint yoke (19). A guiding disc (25) has a first central centering projection (28) articulatably connected to the first centering means (4, 6). The guiding disc has a second central centering projection (29) articulatably connected to the second centering means (15, 17). Guiding faces (32, 33) on the guiding disc (25) are radially adjustably guided in an annular recess (24) of a housing (9, 20).

Abstract: A centered double universal joint has a first outer joint yoke 1 with first outer yoke arms 2 connected to one another by a first bridge 3. A first cenering mechanism 4, 6 is on the first bridge 3. A first inner joint yoke 8 couples with the first inner yoke arms. A first cross member 10 connects the first outer yoke arms 2 to the first inner yoke arms. The first cross member 10 has a first lubricant supply 44, 47. A second outer joint yoke 12 with second outer yoke arms 13 are connected to one another by a second bridge 14. Second centering mechanism 15, 17 is on the second bridge 14. A second inner joint yoke 19 couples with the second inner yoke arms. A second cross member 21 connects the second outer yoke arms 13 to the second inner yoke arms. The second cross member 21 has a second lubricant supply 44′, 47′. A guiding disc 25, defining a longitudinal axis 31, has a first central centering projection 28 articulatably connected to the first centering means 4, 6.

Abstract: A centered double universal joint has a first outer joint yoke (1) carrying a first cylindrical bearing journal (4). A unit including a first bearing ball (6) and a first bearing race (25) are secured on the journal (4). Via a cylindrical outer face (33), first bearing race (25), the unit is positioned in a bearing bore (24) of a guiding projection (23) of a guiding disc (22). Accordingly, a surface to surface contact is achieved between the cylindrical outer face (33) and the bearing bore (24) as well as between the hollow spherical bore (32) of the bearing race (26) and the spherical outer face (17) of the bearing ball (16). The other outer joint yoke is provided with a similar bearing ball and a bearing race arrangement.

Abstract: A universal joint (150) includes a centering device (160) for maintaining the joint at constant velocity. Each shaft (101) of the joint (150) is connected to a centering device (160). Movement of one of the shafts (101) at an angle relative to the longitudinal axis of the coupling device (117) is transmitted to the other shaft (101) by the centering device (160) and the centering device (160) causes the other shaft (101) to likewise move at the same angle relative to the longitudinal axis of the coupling device (117). The centering device (160) includes an epicyclic bearing (106) within an epicyclic bearing (105), which arrangement of epicyclic bearings allows a full range of movement of the shafts (101).

Abstract: A double Cardan type constant velocity joint has a crank type angle adjusting member rotatably supported in a central portion of a support plate that is provided inwardly of an intermediate housing. First and second engagement protrusions provided at front end portions of first and second yokes engage in an oscillatable manner with first and second engagement holes formed in the angle adjusting member. The angle adjusting member does not displace in a diametrical direction even when rotated.

Abstract: A constant velocity universal joint for high-speed drives such as propeller shafts in motor vehicles has the outer joint part and the inner joint part held relative to one another in an optimum way so that they rotate centrally relative to one another at any angle occurring in operation. This is achieved in that the constant velocity universal joint is provided in the form of a so-called quadripode joint consisting of an outer joint part and an inner joint part which is supported by centering the cross member associated with the inner joint part by means of the arms thereof against respective stops in the outer joint part.

Abstract: A universal joint (150) includes a centering device (160) for maintaining the joint at constant velocity. Each shaft (101) of the joint (150) is connected to a centering device (160). Movement of one of the shafts (101) at an angle relative to the longitudinal axis of the coupling device (117) is transmitted to the other shaft (101) by the centering device (160) and the centering device (160) causes the other shaft (101) to likewise move at the same angle relative to the longitudinal axis of the coupling device (117). The centering device (160) includes an epicyclic bearing (106) within an epicyclic bearing (105), which arrangement of epicyclic bearings allows a full range of movement of the shafts (101).

Abstract: A homokinetic joint for linking a driving shaft and a driven shaft of an automotive steering column for transmission of rotation between the driving shaft and the driven shaft. The joint has two opposite end yokes with a coupling yoke intermediate the two end yokes. The end yokes each have an end hub for linking a respective one of the shafts thereto and branched arms defining a yoke or fork opposite the hub for linking the end yoke to the coupling yoke. Two pivotable cross-pieces link the two end yokes respectively to the coupling yoke for positioning the axes of the shafts for homokinetic transmission of torque. A center ball joint unit has a ball stud and spherical ball fixed on one of the end yokes and a guide carried by the other of the end yokes. A sleeve is disposed in the guide and the ball is disposed in the sleeve. The spherical ball is angularly movable in the sleeve for angular offset variation between the shafts during transmission of torque.

Abstract: A compact double Cardan motion universal joint has a substantially cylindrical housing having an input end and an output end, with an input shaft and ball joint and an output shaft and interengaging ball joint, respectively; each ball joint consisting of a substantially spherical ball on the shaft member, a ball seat torsionally fixed in the housing, and pivots for providing articulation of the ball shaft about two orthogonal axes. Interengagement between the ball joints is provided by an interconnection ball joint consisting of a hollow socket on a joining end of one of the spherical ball shaft members of said universal joint, and a spherical ball on a joining end of the other spherical ball shaft member, the interconnection ball joint providing universal pivoting and translating motion at a juncture between interengaging portions of the ball shaft members.

Abstract: A double cardan universal joint having a pair of annular ring yokes pivotally connected by a tubular coupling yoke. Specific examples are provided of using the double cardan universal joint as a non-constant velocity joint in a three universal joint steering system whereby a the three universal joint system operates at constant velocity.

Abstract: The four trunnions (11) transmit the rotation of the shaft (8) to the body (1) through the intermediately of four tracks (3) which oscillate by rolling without sliding on the inner wall of the body (1). In addition, each track (3) is coupled angularly with the two adjacent tracks by mating teeth (7) so that any inclination of one track produces a contrary inclination of the two adjacent tracks and consequently an inclination in the same direction of the opposite track. The radii (a, b) according to which the tracks roll against the inner wall of the body and the position of the center of gravity (G) of the tracks are such that the centrifugal force (F) returns the tracks into neutral position. The inherent oscillation frequency of the tracks under the effect of this return is equal to twice the speed of rotation of the joint.

Abstract: A centered double cardan joint for steering shafts in motor vehicles, in which the shaft ends (1, 2), which are nonrotatably connected to one another in the joint, are mounted movably in a universal joint around two articulated axes that enclose a right angle with one another and with the longitudinal axis of the shaft in a housing, which connects the two universal joints to one another, by journals (5 through 8 and 10 through 13). To make it possible to manufacture a joint that eliminates vibrations at low cost, each of the two universal joints is provided in a ring (3, 4), which surrounds the corresponding shaft end (1, 2) at a radially spaced location, and in which the shaft end (1, 2) is mounted movably around the journals (5 through 8) arranged in one articulated axis, and which is mounted movably in a housing made of a pipe section (9) by journals arranged in the other articulated axis.

Abstract: In a constant velocity joint on the double Cardan type including a pair of flange yokes each having an annular flange portion and a pair of arm portions and connected together at the flange portions to define a radially inwardly open annular groove therebetween; a pair of pin yoke each having a connection end portion, a spherical end portion and a pair of arm portions connecting the connection end portion and the spherical end portion; a pair of cross pieces each pivotably connecting the pair of arm portions of each one of the flange yokes and the pair of arm portions of each one of the pin yokes in a manner of universal joint; and a centering disk bearing a socket portion for receiving the spherical end portions of the pair of pin yokes and slidably received in said annular groove at an outer peripheral portion thereof, the improvement is in that the socket portion of the centering disk is eccentrically shifted from a diametrical center of the centering disk, so that the centering disk is held from random ro

Abstract: A lubricant supply assembly for a universal joint comprises a universal joint, two rotation shafts connected via the universal joint and being capable of being bent relative to one another, ball-and-socket joints secured at the two rotation shafts, and a coupling tube provided at the universal joint for introducing a lubricant from one of the two rotation shafts to the other of the two rotation shafts. The coupling tube is a single tube. The end of the coupling tube is fixed to a ball in one of the ball-and-socket joints while the other end of the coupling tube slidably penetrates a ball in the other of the ball-and-socket joints to protrude from it.

Abstract: A double joint provided with an arrangement for lubricating the centering devices which, via the lubricating nipple provided for a universal joint, may be supplied with lubricant. For this purpose, a hose is inserted centrally into the cross member into a threaded bore which communicates with the lubricating channels of the cross member. The hose extends into a lubricating channel in the centering device which is arranged so as to extend on the axis of the outer yoke of the universal joint. It supplies the centering device for the two universal joints, consisting of a sleeve and a journal, with lubricant. The flexible hose permits articulation of the outer yoke relative to the cross member without the hose leaving the lubricating channel. The articulation of the two parts relative to each other is accommodated by elastic deformation of the hose.

Abstract: A universal joint yoke has a ball and socket connection at one end. The ball is held in the socket with an assembly of a retainer and a hidden spring. The spring is rectangular and is compressed into an external rectangular groove of the retainer. The retainer is then inserted into a recess at the end of the socket. The retainer must be inserted past its final farthest-in position for the spring to expand into an internal rounded groove in the recess to assure a loose connection without any preload on the ball.