WO2023248683A1 - Joint universel homocinétique et son procédé de fabrication - Google Patents

Joint universel homocinétique et son procédé de fabrication Download PDF

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Publication number
WO2023248683A1
WO2023248683A1 PCT/JP2023/019131 JP2023019131W WO2023248683A1 WO 2023248683 A1 WO2023248683 A1 WO 2023248683A1 JP 2023019131 W JP2023019131 W JP 2023019131W WO 2023248683 A1 WO2023248683 A1 WO 2023248683A1
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WO
WIPO (PCT)
Prior art keywords
joint member
constant velocity
velocity universal
circumferential surface
peripheral surface
Prior art date
Application number
PCT/JP2023/019131
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English (en)
Japanese (ja)
Inventor
達朗 杉山
智茂 小林
正純 小林
Original Assignee
Ntn株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ntn株式会社 filed Critical Ntn株式会社
Publication of WO2023248683A1 publication Critical patent/WO2023248683A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D3/226—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part
    • F16D3/227—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic

Definitions

  • the present invention relates to a constant velocity universal joint and a method for manufacturing the same.
  • an automobile drive shaft consists of an outboard constant velocity universal joint that is attached to the wheel, an inboard constant velocity universal joint that is attached to the differential gear, and an intermediate shaft that connects both constant velocity universal joints.
  • an outboard constant velocity universal joint that is attached to the wheel
  • an inboard constant velocity universal joint that is attached to the differential gear
  • an intermediate shaft that connects both constant velocity universal joints.
  • a fixed type constant velocity universal joint that can have a large operating angle but does not displace in the axial direction is used as a constant velocity universal joint on the outboard side.
  • a sliding type constant velocity universal joint is used which has a relatively small maximum operating angle but is capable of axial displacement while maintaining the operating angle.
  • Patent Documents 1 and 2 listed below disclose constant velocity universal joints that are made smaller and lighter by using eight balls.
  • an object of the present invention is to lower the slip resistance at the sliding contact portions between the retainer, outer joint member, and inner joint member of a constant velocity universal joint, and to increase durability.
  • the present invention provides an outer joint member having a plurality of track grooves formed on an inner circumferential surface, an inner joint member having a plurality of track grooves formed on an outer circumferential surface, and an outer joint member having a plurality of track grooves formed on an outer circumferential surface thereof.
  • a constant velocity universal joint that includes a retainer that is in sliding contact with the outer peripheral surface of an inner joint member, A processed surface having a large number of processed lines is provided on the outer peripheral surface of the retainer and the outer peripheral surface of the inner joint member, A constant velocity universal joint is provided in which the processed surface has a removed portion formed by removing a tip of a convex portion provided at the boundary of the processed streak.
  • the fixed constant velocity universal joint described above includes a step of machining the outer circumferential surface of the cage and the outer circumferential surface of the inner joint member, and a process of performing barrel processing on the outer circumferential surface of the retainer and the outer circumferential surface of the inner joint member. By performing this process, it is possible to manufacture through the step of removing the tips of the convex portions at the boundaries of the machining lines formed by the machining.
  • FIG. 3 is a flow diagram showing the manufacturing process of the outer joint member.
  • FIG. 2 is an enlarged view (photograph) showing a ground surface that has not been subjected to barrel processing.
  • FIG. 3 is a cross-sectional view of a ground surface that has not been subjected to barrel processing.
  • FIG. 3 is a flow diagram showing the manufacturing process of the inner joint member.
  • FIG. 2 is an enlarged view (photograph) showing a ground surface subjected to barrel processing.
  • FIG. 3 is a cross-sectional view of a ground surface subjected to barrel processing. It is a flow diagram showing a manufacturing process of a cage.
  • the drive shaft 1 shown in FIG. 1 consists of a sliding constant velocity universal joint 2 provided on the inboard side (right side in the figure) and a fixed constant velocity universal joint 3 provided on the outboard side (left side in the figure). and an intermediate shaft 4 that connects both constant velocity universal joints 2 and 3.
  • the sliding constant velocity universal joint 2 allows both axial displacement and angular displacement
  • the fixed constant velocity universal joint 3 allows only angular displacement.
  • the sliding type constant velocity universal joint 2 on the inboard side is connected to a differential gear
  • the fixed type constant velocity universal joint 3 on the outboard side is connected to the wheels.
  • Rotational driving force output from the engine is transmitted to the differential gear via the transmission and propeller shaft, and from there to the left and right wheels via the left and right drive shafts 1.
  • the drive shaft 1 of this embodiment is a rear wheel drive shaft attached to the rear wheels of an automobile.
  • the sliding constant velocity universal joint 2 includes an outer joint member 21, an inner joint member 22, and a plurality of balls (eight in this embodiment) that transmit torque between the outer joint member 21 and the inner joint member 22. 23, and a holder 24 that holds a plurality of balls 23.
  • the outer joint member 21 is attached to the differential gear, and the inner joint member 22 is attached to the inboard end of the intermediate shaft 4.
  • the outer joint member 21 integrally includes a cup-shaped mouth portion 21a that is open on the outboard side, and a stem portion 21b that extends from the bottom of the mouth portion 21a toward the inboard side.
  • a plurality of (eight in this embodiment) linear track grooves 21d extending in the axial direction are provided on the cylindrical inner circumferential surface 21c of the mouse portion 21a.
  • a spline 21e that is inserted into a spline hole of the differential gear is provided on the outer peripheral surface of the inboard end of the stem portion 21b.
  • a spline hole 22a into which the intermediate shaft 4 is inserted is provided at the axis of the inner joint member 22.
  • the spherical outer peripheral surface 22b of the inner joint member 22 is provided with a plurality of (eight in this embodiment) linear track grooves 22c extending in the axial direction.
  • the track groove 21d of the outer joint member 21 and the track groove 22c of the inner joint member 22 face each other in the radial direction to form a plurality of (eight in this embodiment) ball tracks.
  • One ball 23 is arranged on each ball track.
  • the holder 24 has a plurality of (eight in this embodiment) pockets 24a that hold the balls 23.
  • the pockets 24a all have the same shape and are arranged at equal intervals in the circumferential direction.
  • the outer peripheral surface of the retainer 24 is provided with a spherical part 24b that makes sliding contact with the cylindrical inner peripheral surface 21c of the outer joint member 21, and a conical part 24c that extends tangentially from both axial ends of the spherical part 24b.
  • the conical portion 24c is a stopper that comes into line contact with the inner circumferential surface 21c of the outer joint member 21 when the sliding constant velocity universal joint 2 reaches its maximum operating angle, and prevents the operating angle from increasing further.
  • the inclination angle ⁇ of the conical portion 24c with respect to the axis of the retainer 24 is set to a value of 1/2 of the maximum operating angle of the sliding constant velocity universal joint 2.
  • the inner peripheral surface of the retainer 24 is provided with a spherical surface portion 24d that comes into sliding contact with the spherical outer peripheral surface 22b of the inner joint member 22.
  • the axial displacement between the outer joint member 21 and the inner joint member 22 is caused by the axial sliding of the spherical portion 24b of the outer peripheral surface of the retainer 24 and the cylindrical inner peripheral surface 21c of the outer joint member 21. is allowed.
  • the center of curvature O24b of the spherical portion 24b on the outer peripheral surface of the retainer 24 and the center of curvature O24d of the spherical portion 24d on the inner peripheral surface of the retainer 24 are: They are offset by an equal distance on the opposite side in the axial direction with respect to the joint center O(s).
  • the center of curvature O24b of the spherical portion 24b on the outer circumferential surface of the cage 24 is offset toward the inboard side (towards the back of the joint) with respect to the joint center O(s), and the spherical portion 24b on the inner circumferential surface of the cage 24
  • the center of curvature O24d of 24d is offset toward the outboard side (joint opening side) with respect to the joint center O(s).
  • the sliding type constant velocity universal joint 2 of this embodiment is made smaller and lighter by being used exclusively for the rear wheel drive shaft.
  • the maximum operating angle was 25° or more, but in this embodiment, the maximum operating angle is limited to 20° or less by being dedicated to the rear wheel drive shaft.
  • the fixed constant velocity universal joint 3 includes an outer joint member 31 attached to the wheel, an inner joint member 32 attached to the outboard side end of the intermediate shaft 4, and the outer joint member 31 and the inner side. It includes a plurality of balls 33 (eight in this embodiment) that transmit torque to and from the joint member 32, and a retainer 34 that holds the plurality of balls 33.
  • the outer joint member 31 integrally includes a cup-shaped mouth portion 31a that is open on the inboard side, and a stem portion 31b that extends from the bottom of the mouth portion 31a toward the outboard side.
  • a plurality of (eight in this embodiment) arc-shaped track grooves 31d extending in the axial direction are formed in the spherical inner peripheral surface 31c of the mouse portion 31a.
  • a spline 31e that is inserted into a spline hole on the wheel side is provided on the outer peripheral surface of the stem portion 31b.
  • a spline hole 32a into which the intermediate shaft 4 is inserted is provided at the axis of the inner joint member 32.
  • the spherical outer peripheral surface 32b of the inner joint member 32 is provided with a plurality of (eight in this embodiment) arc-shaped track grooves 32c extending in the axial direction.
  • the track groove 31d of the outer joint member 31 and the track groove 32c of the inner joint member 32 face each other in the radial direction to form a plurality of ball tracks (eight in this embodiment).
  • One ball 33 is arranged on each ball track.
  • the center of curvature O31d of the track groove 31d of the outer joint member 31 and the center of curvature O32c of the track groove 32c of the inner joint member 32 are offset by the same distance on the opposite side in the axial direction with respect to the joint center O(f).
  • the center of curvature O31d of the track groove 31d of the outer joint member 31 is offset toward the inboard side (joint opening side) with respect to the joint center O(f)
  • the center of curvature of the track groove 32c of the inner joint member 32 is offset from the joint center O(f) toward the inboard side (joint opening side).
  • O32c is offset toward the outboard side (towards the back of the joint) with respect to the joint center O(f).
  • the holder 34 has a plurality of (eight in this embodiment) pockets 34a that hold the balls 33.
  • the pockets 34a all have the same shape and are arranged at equal intervals in the circumferential direction.
  • the spherical outer peripheral surface 34b of the retainer 34 is in sliding contact with the spherical inner peripheral surface 31c of the outer joint member 31.
  • the spherical inner peripheral surface 34c of the retainer 34 is in sliding contact with the spherical outer peripheral surface 32b of the inner joint member 32.
  • the center of curvature of the outer peripheral surface 34b of the cage 34 i.e., the center of curvature of the spherical inner peripheral surface 31c of the outer joint member 31
  • the center of curvature of the inner peripheral surface 34c i.e., the spherical outer peripheral surface of the inner joint member 32
  • the fixed constant velocity universal joint 3 of this embodiment is designed to be made smaller and lighter by being used exclusively for the rear wheel drive shaft.
  • the maximum operating angle was 45° or more, but in this embodiment, the maximum operating angle is limited to 20° or less by being dedicated to the rear wheel drive shaft.
  • a hollow shaft having an axial through hole can be used as the intermediate shaft 4, as shown in FIG. 1, a hollow shaft having an axial through hole can be used.
  • the spline 41 at the inboard end of the intermediate shaft 4 is inserted into the spline hole 22 a of the inner joint member 22 of the sliding constant velocity universal joint 2 .
  • the intermediate shaft 4 and the inner joint member 22 are connected by spline fitting so that torque can be transmitted.
  • a bellows-shaped boot 25 is attached and fixed between the outer circumferential surface of the outer joint member 21 of the sliding constant velocity universal joint 2 and the outer circumferential surface of the intermediate shaft 4 by a boot band.
  • Grease as a lubricant is sealed inside the joint (the space sealed between the outer joint member 21 and the boot 25).
  • the spline 42 at the outboard end of the intermediate shaft 4 is inserted into the spline hole 32a of the inner joint member 32 of the fixed constant velocity universal joint 3.
  • the intermediate shaft 4 and the inner joint member 32 are connected by spline fitting so that torque can be transmitted.
  • a bellows-shaped boot 35 is attached and fixed between the outer circumferential surface of the outer joint member 31 of the fixed type constant velocity universal joint 3 and the outer circumferential surface of the intermediate shaft 4 by a boot band.
  • Grease as a lubricant is sealed inside the joint (the space sealed between the outer joint member 31 and the boot 35).
  • the outer joint member 21 is manufactured through a forging process, a turning process, a spline process, a heat treatment process, and a machining process (in this embodiment, a grinding process).
  • the shaft-shaped material is forged to form a material having approximately the same shape as the outer joint member 21.
  • a material having the mouth portion 21a and the stem portion 21b integrally is molded.
  • the raw material is subjected to turning processing to improve the dimensional accuracy of the outer circumferential surface of the mouth portion 21a and the outer circumferential surface of the stem portion 21b, and to form a boot mounting groove on the outer circumferential surface of the mouth portion 21a.
  • the outer peripheral surface of the stem portion 21b is rolled to form the spline 21e.
  • heat treatment is applied to the required parts of the formed material.
  • heat treatment is applied to the inner circumferential surface 21c of the mouse portion 21a, the track groove 21d, and the spline 21e of the stem portion 21b.
  • the heat treatment for example, induction quenching and tempering, carburizing and quenching and tempering can be applied.
  • the necessary parts of the material are ground.
  • the stem portion 21b is subjected to a grinding process.
  • the inner joint member 22 is manufactured through a forging process, a turning process, a spline process, a heat treatment process, a machining process (in this embodiment, a grinding process), and a barrel process.
  • a cylindrical material is forged to form a material having approximately the same shape as the inner joint member 22.
  • turning is performed on the outer circumferential surface and both axial end surfaces of the formed material to improve their dimensional accuracy.
  • a spline hole 22a is formed by broaching or the like on the inner peripheral surface of the formed material.
  • heat treatment is applied to the required parts of the formed material.
  • heat treatment is performed on the outer circumferential surface 22b, track groove 22c, and spline hole 22a of the formed material.
  • the heat treatment for example, carburizing, quenching, and tempering are performed.
  • the necessary parts of the material are ground.
  • the spherical outer circumferential surface 22b and the track groove 22c of the raw material are subjected to a grinding process.
  • a ground surface as shown in FIG. 5 is formed on the outer circumferential surface 22b and the track groove 22c.
  • many grinding streaks P are formed on this ground surface.
  • a convex portion Q with a pointed tip is formed at the boundary between adjacent grinding streaks P.
  • the grinding streaks P and the convex portions Q extend along the processing direction.
  • barrel processing is performed on the raw material.
  • Barrel machining is a method in which a workpiece (forming material) and media are put into a container (barrel) and the container is moved to process the workpiece by mutual friction between the workpiece and the media.
  • barrel processing rotary barrel processing, vibrating barrel processing, centrifugal barrel processing, fluid barrel processing, etc. are known.
  • vibrating barrel processing and fluid barrel processing are particularly preferred. Specifically, vibrating barrel processing is most preferable for the retainer, and fluid barrel processing is most preferable for the inner ring joint member.
  • Barrel processing is performed mainly on the outer circumferential surface 22b and track groove 22c of the formed material because media tends to collide with the outer circumferential surface of the workpiece.
  • This barrel processing makes the ground surface smooth as shown in FIG. Specifically, as shown in FIG. 9, when the media collides with the protrusion Q provided at the boundary of the grinding streak P, the tip of the protrusion Q is removed, and a removed portion R is formed. In this way, by removing the tip of the convex portion Q to form a smooth removed portion R, the entire ground surface can be finished smoothly. Further, the convex portion Q is not completely removed by barrel processing, and concave grinding streaks P remain on the ground surface.
  • the cage 24 is manufactured through a press molding process, a turning process, a pocket punching process, a heat treatment process, a machining process (in this embodiment, a grinding process), and a barrel machining process.
  • a cylindrical material is press molded to form a barrel-shaped material having approximately the same shape as the cage 24.
  • turning is performed on the outer and inner peripheral surfaces of the formed material to improve their dimensional accuracy.
  • a plurality of pockets 24a are formed by punching a barrel-shaped material in the radial direction with a die.
  • heat treatment is applied to the required parts of the formed material.
  • heat treatment is performed on the inner surface of the pocket 24a of the formed material.
  • the heat treatment for example, carburizing, quenching, and tempering are performed.
  • the necessary parts of the material are ground.
  • a grinding process is performed on the inner surface of the pocket 24a of the material, the spherical surface portion 24b on the outer peripheral surface, and the spherical surface portion 24d on the inner peripheral surface.
  • ground surfaces as shown in FIG. 5 are formed on the inner surface of the pocket 24a, the spherical surface portion 24b on the outer peripheral surface, and the spherical surface portion 24d on the inner peripheral surface.
  • many grinding streaks P are formed on this ground surface.
  • a convex portion Q with a pointed tip is formed at the boundary between adjacent grinding streaks P.
  • the grinding streaks P and the convex portions Q extend along the processing direction.
  • barrel processing is performed on the raw material.
  • the details of the barrel processing are the same as the barrel processing of the inner joint member 22 described above, so a description thereof will be omitted.
  • a smooth ground surface as shown in FIGS. 8 and 9 is formed on the surface (mainly the outer peripheral surface) of the raw material of the retainer 24.
  • the inner circumferential surface 21c of the outer joint member 21 of the sliding type constant velocity universal joint 2 is formed with a ground surface (see FIG. 6) having a convex portion Q with a sharp tip.
  • the spherical portion 24b of the outer peripheral surface of the retainer 24 is formed with a grinding surface (see FIG. 9) having a smooth removed portion R where the tip of the convex portion Q at the boundary of the grinding streak P has been removed.
  • a ground surface (see FIG. 6) having a convex portion Q with a sharp tip is formed even after barrel machining.
  • the outer circumferential surface 22b of the inner joint member 22 is formed with a ground surface (see FIG. 9) having a smooth removed portion R where the tips of the convex portions Q at the boundaries of the grinding streaks P have been removed.
  • the grinding lines P function as an oil reservoir, thereby making contact with the spherical part 24d of the inner circumferential surface of the retainer 24. Slip resistance at the sliding contact portion is further reduced.
  • the manufacturing method of the fixed type constant velocity universal joint 3 is the same as that of the sliding type constant velocity universal joint, so detailed explanation will be omitted.
  • the inner peripheral surface 31c of the outer joint member 31 is formed with a ground surface (see FIG. 6) having a convex portion Q with a sharp tip, while the outer peripheral surface of the retainer 34 is On the surface 34b, a grinding surface (see FIG. 9) is formed at the boundary of the grinding streaks P, having a smooth removed portion R where the tips of the convex portions Q have been removed.
  • the inner circumferential surface 34c of the retainer 34 is formed with a ground surface (see FIG.
  • the present invention is not limited to the above embodiments.
  • the number of balls 23, 33 of constant velocity universal joints 2, 3 is eight, but the number of balls is not limited to this, and may be six, for example.
  • the grinding process is shown as the machining process before the barrel process, but the present invention is not limited to this, and the machining process before the barrel process may be a cutting process.
  • the cross section after cutting shows a form similar to that shown in FIG. 6, and the cross section after barrel processing shows a form similar to FIG. 9.
  • the constant velocity universal joints 2 and 3 are used exclusively for rear wheel drive shafts, but the present invention is not limited to this, and the present invention can be applied to conventional constant velocity universal joints that can also be used as front wheel drive shafts. May be applied.
  • constant velocity universal joints to which the present invention can be applied are not limited to those mentioned above, and the present invention may be applied to, for example, cross-groove type constant velocity universal joints.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

Une surface de sol comprenant de nombreuses lignes de sol P est disposée sur une surface périphérique externe 24b d'un élément de retenue 24 et sur une surface périphérique externe 22b d'un élément de joint interne 22. La surface de sol comprend des parties retirées R formées par élimination des extrémités de pointe de parties en saillie Q disposées au niveau d'une limite des lignes de sol P.
PCT/JP2023/019131 2022-06-20 2023-05-23 Joint universel homocinétique et son procédé de fabrication WO2023248683A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-098782 2022-06-20
JP2022098782A JP2024000173A (ja) 2022-06-20 2022-06-20 等速自在継手及びその製造方法

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WO2023248683A1 true WO2023248683A1 (fr) 2023-12-28

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TW (1) TW202400916A (fr)
WO (1) WO2023248683A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0914281A (ja) * 1995-06-29 1997-01-14 Ntn Corp 等速自在継手およびその製造方法
JP2006275099A (ja) * 2005-03-28 2006-10-12 Ntn Corp トリポード型等速自在継手
JP2008075778A (ja) * 2006-09-21 2008-04-03 Ntn Corp 摺動型等速自在継手
JP2014095404A (ja) * 2012-11-08 2014-05-22 Ntn Corp 固定式等速自在継手

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0914281A (ja) * 1995-06-29 1997-01-14 Ntn Corp 等速自在継手およびその製造方法
JP2006275099A (ja) * 2005-03-28 2006-10-12 Ntn Corp トリポード型等速自在継手
JP2008075778A (ja) * 2006-09-21 2008-04-03 Ntn Corp 摺動型等速自在継手
JP2014095404A (ja) * 2012-11-08 2014-05-22 Ntn Corp 固定式等速自在継手

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JP2024000173A (ja) 2024-01-05

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