Pivoting system, pivoting assembly, pivoting module and seat comprising the pivoting system
AssigneeFAURECIA Sièges d'Automobile
InventorsGérald GAROTTE, Bertrand TOUZET
Life of this patent
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Abstract
A pivoting system comprising a first hinge mechanism comprising a first frame and a second frame connected together by a first hypocycloidal gear, the first gear comprising a first eccentric cam, a first set of teeth, and a second set of teeth, the first eccentric cam having a first eccentricity, a second hinge mechanism comprising a first frame and a second frame connected together by a second hypocycloidal gear, the second gear comprising a second eccentric cam, a first set of teeth, and a second set of teeth, the second eccentric cam having a second eccentricity equal to the first eccentricity, a control shaft configured to drive the first eccentric cam and the second eccentric cam in rotation.
Claims12
A pivoting system comprising:
- a first hinge mechanism comprising a first frame and a second frame mounted so as to rotate relative to one another and connected together by a first hypocycloidal gear, the first gear comprising a first eccentric cam, a first set of teeth and a second set of teeth, the first set of teeth of the first hinge mechanism and the second set of teeth of the first hinge mechanism being circular and in mutual engagement, the first set of teeth of the first hinge mechanism being mechanically linked to the first frame of the first hinge mechanism and the second set of teeth of the first hinge mechanism being mechanically linked to the second frame of the first hinge mechanism, the first set of teeth of the first hinge mechanism being centered on a first axis and the second set of teeth of the first hinge mechanism being centered on a second axis, the first eccentric cam having a first eccentricity corresponding to the distance between the first axis and the second axis,
- a control shaft comprising a first drive portion configured to drive the first eccentric cam in rotation,
- a second hinge mechanism comprising a first frame and a second frame mounted so as to rotate relative to one another and connected together by a second hypocycloidal gear, the second gear comprising a second eccentric cam, a first set of teeth and a second set of teeth, the first set of teeth of the second hinge mechanism and the second set of teeth of the second hinge mechanism being circular and in mutual engagement, the first set of teeth of the second hinge mechanism being mechanically linked to the first frame of the second hinge mechanism and the second set of teeth of the second hinge mechanism being mechanically linked to the second frame of the second hinge mechanism, the first set of teeth of the second hinge mechanism being centered on a third axis and the second set of teeth of the second hinge mechanism being centered on a fourth axis, the second eccentric cam having a second eccentricity corresponding to the distance between the third axis and the fourth axis,
- wherein the second frame of the first hinge mechanism is rigidly fixed to the first frame of the second hinge mechanism and the third axis is coaxial with the second axis,
- wherein the first eccentricity is equal to the second eccentricity, such that the fourth axis is substantially coaxial with the first axis, and
- wherein the control shaft comprises a second drive portion configured to drive the second eccentric cam in rotation.
Dependencies are inferred from the claim text.