A constant velocity universal ball joint includes an outer joint part, an inner joint part, torque transmitting balls guided in pairs of tracks, and an annular ball cage held between the outer joint part and the inner joint part, wherein the ball cage forms an inner face which is internally widened
A constant velocity universal ball joint includes an outer joint part, an inner joint part, torque transmitting balls guided in pairs of tracks, and an annular ball cage held between the outer joint part and the inner joint part, wherein the ball cage forms an inner face which is internally widened between two end apertures of the ball cage. The inner joint part has a greatest outer diameter which is greater than each of the inner diameters of the end apertures of the ball cage. Adjoining inner ball tracks of the inner joint part form webs whose axial length is greater than the circumferential extension of the cage windows of the ball cage. The ball cage can be elastically ovalised to the extent that, when the axes of the ball cage and of the inner joint part intersect one another approximately perpendicularly upon contact between a web of the inner joint part and the inner face of the ball cage, the opposed web of the inner joint part is able to pass through an end aperture.
대표청구항▼
1. A method of assembling a constant velocity universal ball joint comprising:providing an outer joint part ( 11 ) with outer ball tracks ( 15 ), an inner joint part ( 12 ) with inner ball tracks ( 16 ), torque transmitting balls ( 13 ) guided in pairs of tracks comprising one of said outer ball tra
1. A method of assembling a constant velocity universal ball joint comprising:providing an outer joint part ( 11 ) with outer ball tracks ( 15 ), an inner joint part ( 12 ) with inner ball tracks ( 16 ), torque transmitting balls ( 13 ) guided in pairs of tracks comprising one of said outer ball tracks ( 15 ) and one inner ball tracks ( 16 ), and an annular ball cage ( 17 ) held between the outer joint part ( 11 ) and the inner joint part ( 12 ) and having circumferentially distributed cage windows ( 18 ) each receiving one of the balls ( 13 ), the ball cage ( 17 ) comprising an inner face ( 23 ) which is internally widened between two end apertures ( 21 , 22 ) of the ball cage, the end apertures 21 , 22 ) defining an inner diameter (d 1 ), the inner joint part ( 12 ) defining an outer diameter (d 2 ) which is greater than the inner diameter (d 1 ) of the end apertures ( 21 , 22 ) of the ball cage, and wherein adjoining inner ball tracks ( 16 ) of the inner joint part ( 12 ) form webs ( 27 ) whose axial length (x) is greater than a circumferential extension (y) of the cage windows ( 18 ) of the ball cage ( 17 );elastically ovalising the ball cage ( 17 ); andwhen respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly upon contact between a web ( 27 1 ) of the inner joint part ( 12 ) and the inner face ( 23 ) of the ball cage ( 17 ), passing an opposed web ( 27 2 ) of the inner joint part ( 12 ) through an end aperture ( 21 , 22 ). 2. A method according to claim 1, wherein the ball cage ( 17 ) is elastically ovalized such that, when respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly, the inner joint part ( 12 ) is able, by way of a smallest side projection diameter (d 5 ), to pass through an end aperture ( 21 , 22 ) of the ball cage. 3. A method according to claim 1, wherein the ball cage ( 17 ) is elastically ovalised to such that, when respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly, the inner joint part ( 12 ) is able, by way of the inner diameter (d 1 ), to pass through the end aperture ( 21 , 22 ) of the ball cage. 4. A method according to claim 1 comprising providing a notch in a widened end portion ( 19 , 20 ) of an inner ball track ( 16 ) of the inner joint part, said notch extending centrally relative to a longitudinal extension of the track. 5. A joint according to claim 1 wherein the joint is a counter track joint wherein pairs of tracks of first outer ball tracks ( 15 1 ) and of first inner ball tracks ( 16 1 ) open in a first axial direction, and wherein pairs of tracks of second outer ball tracks ( 15 2 ) and of second inner ball tracks ( 16 2 ) open in the second axial direction. 6. A method according to claim 1 wherein the joint is a fixed joint, wherein inner annular faces of the inner face ( 23 ) of the ball cage ( 17 ) are in centering contact with outer faces ( 28 ) of the inner joint part ( 12 ). 7. A constant velocity universal ball joint comprising:an outer joint part ( 11 ) with outer ball tracks ( 15 ), an inner joint part ( 12 ) with inner ball tracks ( 16 ), torque transmitting balls ( 13 ) guided in pairs of tracks comprising one of said outer ball tracks ( 15 ) and one of said inner ball tracks ( 16 ), and an annular ball cage ( 17 ) held between the outer joint part ( 11 ) and the inner joint part ( 12 ) and having cirucmferentially distributed cage windows ( 18 ) each receiving one of the balls ( 13 ), the ball cage ( 17 ) comprising an inner face ( 23 ) which is internally widened between two end apertures ( 21 , 22 ) defining an inner diameter (d 1 ), the inner joint part ( 12 ) defining an outer diameter (d 2 ) which is greater than the inner diameter (d 1 ) of the end apertures ( 21 , 22 ) of the ball cage, andwherein adjoining inner ball tracks ( 16 ) of the inner joint part ( 12 ) form webs ( 27 ) whose axial length (x) is greater than a circumferential extension (y) of the cage windows ( 18 ) of the ball cage ( 17 ), andwherein the ball cage ( 17 ) is elastically ovalizable such that, when respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly upon contact between a web ( 27 1 ) of the inner joint part ( 12 ) and the inner face ( 23 ) of the ball cage ( 17 ), an opposed web ( 27 2 ) of the inner joint part ( 12 ) is able to pass through an end aperture ( 21 , 22 ); andwherein the joint comprises a longitudinally extending deepened groove ( 29 ) in a track base of at least one inner ball track ( 16 ) of the inner joint part ( 12 ). 8. A joint according to claim 7, wherein the ball cage ( 17 ) is elastically ovalized such that, when respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly, the inner joint part ( 12 ) is able, by way of a smallest side projection diameter (d 5 ), to pass through an end aperture ( 21 , 22 ) of the ball cage. 9. A joint according to claim 7, wherein the ball cage ( 17 ) is elastically ovalised such that, when respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly, the inner joint part ( 12 ) is able, by way of a inner diameter (d 1 ), to pass through the end aperture ( 21 , 22 ) of the ball cage. 10. A joint according to claim 7 comprising a centrally circumferentially extending deepened groove ( 24 ) in the inner face ( 23 ) of the ball cage ( 17 ). 11. A joint according to claim 10 comprising a notch in a widened end portion ( 19 , 20 ) of an inner ball track ( 16 ) of the inner joint part, said notch extending centrally relative to a longitudinal extension of the track. 12. A joint according to claim 10 wherein the joint is a counter track joint wherein pairs of tracks of first outer ball tracks ( 15 1 ) and of first inner ball tracks ( 16 1 ) open in a first axial direction, and wherein pairs of tracks of second outer ball tracks ( 15 2 ) and of second inner ball tracks ( 16 2 ) open in the second axial direction. 13. A joint according to claim 10 wherein the joint is a fixed joint, wherein inner annular faces of the inner face ( 23 ) of the ball cage ( 17 ) are in centering contact with outer faces ( 28 ) of the inner joint part ( 12 ). 14. A joint according to claim 7 comprising a notch in a widened end portion ( 19 , 20 ) of an inner ball track ( 16 ) of the inner joint part, said notch extending centrally relative to a longitudinal extension of the track. 15. A joint according to claim 7 wherein the joint is a counter track joint wherein pairs of tracks of first outer ball tracks ( 15 1 ) and of first inner ball tracks ( 16 1 ) open in a first axial direction, and wherein pairs of tracks of second outer ball tracks ( 15 2 ) and of second inner ball tracks ( 16 2 ) open in the second axial direction. 16. A constant velocity universal ball joint comprising:an outer joint part ( 11 ) with outer ball tracks ( 15 ), an inner joint part ( 12 ) with inner ball tracks ( 16 ), torque transmitting balls ( 13 ) guided in pairs of tracks comprising one of said outer ball tracks ( 15 ) and one of said inner ball tracks ( 16 ), and an annular ball cage ( 17 ) held between the outer joint part ( 11 ) and the inner joint part ( 12 ) and having circumferentially distributed cage windows ( 18 ) each receiving one of the balls ( 13 ), the ball cage ( 17 ) comprising an inner face ( 23 ) which is internally widened between two end apertures ( 21 , 22 ) of the ball cage, the end apertures ( 21 , 22 ) defining an inner diameter (d 1 ), the inner joint part ( 12 ) defining an outer diameter (d 2 ) which is greater than the inner diameter (d 1 ) of the end apertures ( 21 , 22 ) of the ball cage, andwherein adjoining inner ball tracks ( 16 ) of the inner joint part ( 12 ) form webs ( 27 ) whose axial length (x) is greater than a circumferential extension (y) of the cage windows ( 18 ) of the ball cage ( 17 ), andwherein the ball cage ( 17 ) is elastically ovalizable such that, when respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly upon contact between a web ( 27 1 ) of the inner joint part ( 12 ) and the inner face ( 23 ) of the ball cage ( 17 ), an opposed web ( 27 2 ) of the inner joint part ( 12 ) is able to pass through an end aperture ( 21 , 22 ); andwherein the joint comprises a longitudinally extending deepened groove ( 24 ) in inner face ( 23 ) of the ball cage ( 17 ). 17. A joint according to claim 16, wherein the ball cage ( 17 ) is elastically ovalised such that, when respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly, the inner joint part ( 12 ) is able, by way of a smallest side projection diameter (d 5 ), to pass through an end aperture ( 21 , 22 ) of the ball cage. 18. A joint according to claim 16, wherein the ball cage ( 17 ) is elastically ovalised such that, when respective axes of the ball cage ( 17 ) and of the inner joint part ( 12 ) intersect one another approximately perpendicularly, the inner joint part ( 12 ) is able, by way of a inner diameter (d 1 ), to pass through the end aperture ( 21 , 22 ) of the ball cage. 19. A joint according to claim 16 comprising a notch in a widened end portion ( 19 , 20 ) of an inner ball track ( 16 ) of the inner joint part, said notch extending centrally relative to a longitudinal extension of the track. 20. A joint according to claim 16 wherein the joint is a counter track joint wherein pairs of tracks of first outer ball tracks ( 15 1 ) and of first inner ball tracks ( 16 1 ) open in a first axial direction, and wherein pairs of tracks of second outer ball tracks ( 15 2 ) and of second inner ball tracks ( 16 2 ) open in the second axial direction.
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이 특허에 인용된 특허 (7)
Jacob Werner (Frankfurt am Main DEX), Constant velocity fixed joint with alternate sequential running grooves.
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