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US 11,400,836 B2Granted
Vehicle seat with inclinable seat back
AssigneeFAURECIA Sièges d'Automobile
InventorsDavid Epaud, Farouk Bouzid, Sylvain Roche
Life of this patent
Estimating the term…
Abstract
A vehicle seat comprising a seatback mounted pivoting by an articulation mechanism selectively lockable and unlockable, relative to a seatback footing selectively lockable and unlockable on a base, where the seat further comprises a seat cushion, first and second rear connecting rods connecting the seatback to the base, an actuating device being configured, by rotation of the first rear connecting rod, for driving the seatback into a folded down position when the articulation mechanism is unlocked and the seatback footing is locked on the base, and for driving the seat in a forward tilted position when the seatback footing is unlocked and the articulation mechanism is locked.
Claims10
A vehicle seat comprising:
- a seatback;
- a seat cushion comprising at least one longitudinal connecting rod;
- a base;
- a seatback footing mounted on the base, wherein a locking device is selectively lockable for locking the seatback footing on the base and unlockable for releasing the seatback footing, and the released seatback footing is rotationally mobile relative to the base;
- wherein the seatback is mounted pivoting on the seatback footing about a first pivot by an articulation mechanism suited for adjusting an angular position of the seatback, wherein the articulation mechanism is mobile between a locked position where the seatback is immobilized relative to the seatback footing, and an unlocked position where the seatback can pivot relative to the seatback footing around the first pivot;
- wherein the seat cushion is mounted pivoting on the seatback footing around a second pivot parallel to the first pivot, and where said seat cushion is supported by at least one front connecting rod connected pivotably to the seat cushion by a third pivot and to the base by a fourth pivot, wherein the front connecting rod is mobile between a raised position for normal use of the seat and a position tilted forward;
- wherein the seatback is connected to the base by a first rear connecting rod mounted pivoting on a second rear connecting rod by a fifth pivot, wherein the first rear connecting rod is mounted pivoting on the base by a sixth pivot, wherein the second rear connecting rod is mounted pivoting on the seatback by a seventh pivot, and wherein the fifth, sixth and seventh pivots are parallel to the first pivot, the seat further comprising an actuating device configured for actuating the first rear connecting rod in rotation around the sixth pivot;
- the seat further comprising an electric command device configured for controlling the articulation mechanism, the locking device and the actuation device, the electric command device being configured for normally being in a locking mode where the locking device locks the seatback footing onto the base, the articulation mechanism is in a locked position and the actuation device is not actuated, and said electric command device being actuatable for either:
- putting the articulation mechanism in unlocked position and then operating the actuating device while leaving the seatback footing locked onto the base;
- or
- unlocking the locking device for releasing the seatback footing and then operating the actuating device while leaving the articulation mechanism in the locked position.
8 more elements
A vehicle seat comprising:
- a seatback;
- a seat cushion comprising at least one longitudinal connecting rod;
- a base;
- a seatback footing mounted on the base, wherein a locking device is selectively lockable for locking the seatback footing on the base and unlockable for releasing the seatback footing, and the released seatback footing is rotationally mobile relative to the base;
- wherein the seatback is mounted pivoting on the seatback footing about a first pivot by an articulation mechanism suited for adjusting an angular position of the seatback, wherein the articulation mechanism is mobile between a locked position where the seatback is immobilized relative to the seatback footing, and an unlocked position where the seatback can pivot relative to the seatback footing around the first pivot;
- wherein the seat cushion is mounted pivoting on the seatback footing around a second pivot parallel to the first pivot, and where said seat cushion is supported by at least one front connecting rod connected pivotably to the seat cushion by a third pivot and to the base by a fourth pivot, wherein the front connecting rod is mobile between a raised position for normal use of the seat and a position tilted forward;
- wherein the seatback is connected to the base by a first rear connecting rod mounted pivoting on a second rear connecting rod by a fifth pivot, wherein the first rear connecting rod is mounted pivoting on the base by a sixth pivot, wherein the second rear connecting rod is mounted pivoting on the seatback by a seventh pivot, and wherein the fifth, sixth and seventh pivots are parallel to the first pivot, the seat further comprising an actuating device configured for actuating the first rear connecting rod in rotation around the sixth pivot;
- and
- wherein the actuation device comprises a pinion commanded by an electric motor, wherein the first rear connecting rod is provided with a toothed sector meshing with the pinion.
6 more elements
A vehicle seat comprising:
- a seatback;
- a seat cushion comprising at least one longitudinal connecting rod;
- a base;
- a seatback footing mounted on the base, wherein a locking device is selectively lockable for locking the seatback footing on the base and unlockable for releasing the seatback footing, and the released seatback footing is rotationally mobile relative to the base;
- wherein the seatback is mounted pivoting on the seatback footing about a first pivot by an articulation mechanism suited for adjusting an angular position of the seatback, wherein the articulation mechanism is mobile between a locked position where the seatback is immobilized relative to the seatback footing, and an unlocked position where the seatback can pivot relative to the seatback footing around the first pivot;
- wherein the seat cushion is mounted pivoting on the seatback footing around a second pivot parallel to the first pivot, and where said seat cushion is supported by at least one front connecting rod connected pivotably to the seat cushion by a third pivot and to the base by a fourth pivot, wherein the front connecting rod is mobile between a raised position for normal use of the seat and a position tilted forward;
- wherein the seatback is connected to the base by a first rear connecting rod mounted pivoting on a second rear connecting rod by a fifth pivot, wherein the first rear connecting rod is mounted pivoting on the base by a sixth pivot, wherein the second rear connecting rod is mounted pivoting on the seatback by a seventh pivot, and wherein the fifth, sixth and seventh pivots are parallel to the first pivot, the seat further comprising an actuating device configured for actuating the first rear connecting rod in rotation around the sixth pivot;
- and
- wherein the actuation device comprises a hydraulic cylinder provided with a cylinder body and a piston arranged in the cylinder body, wherein the piston is configured for actuating the first rear connecting rod in rotation around the sixth pivot by translation in the cylinder body, and wherein the cylinder body is fixed to the base.
6 more elements
Dependencies are inferred from the claim text.