Transmission joint and in particular an articulated constant-speed joint for a motor vehicle
First Claim
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1. A constant-speed transmission joint for transmitting rotation of a driving shaft to a driven shaft while enabling angular displacement therebetween, said joint comprising:
- a barrel element rigid with the driven shaft, said barrel element defining therein three pairs of tracks;
a tripod element rigid with the driving shaft and rotatable thereby about an axle, said tripod element extendng into said barrel element and having three radially extending arms;
three rolling means rotatively mounted on respective said arms for transmitting rotation of said tripod element to said barrel element while enabling angular displacement of said axis of said tripod element relative to the axis of rotation of said barrel element;
each said rolling means comprising two separate roller sectors disposed on opposite sides of a respective said arm and cooperating with a respective said pair of tracks; and
each said roller sector and the respective said track having cooperating surfaces enabling rolling movement therebetween without substantial sliding movement therebetween.
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Abstract
Each arm of a male element of a joint carries two roller sectors which are rotatively and slidably mounted on the arm, independent from each other and externally toric. The joint is of small size and has no angular play between the roller sectors and respective tracks.
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Citations
18 Claims
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1. A constant-speed transmission joint for transmitting rotation of a driving shaft to a driven shaft while enabling angular displacement therebetween, said joint comprising:
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a barrel element rigid with the driven shaft, said barrel element defining therein three pairs of tracks; a tripod element rigid with the driving shaft and rotatable thereby about an axle, said tripod element extendng into said barrel element and having three radially extending arms; three rolling means rotatively mounted on respective said arms for transmitting rotation of said tripod element to said barrel element while enabling angular displacement of said axis of said tripod element relative to the axis of rotation of said barrel element; each said rolling means comprising two separate roller sectors disposed on opposite sides of a respective said arm and cooperating with a respective said pair of tracks; and each said roller sector and the respective said track having cooperating surfaces enabling rolling movement therebetween without substantial sliding movement therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification