Safety mechanism for a fold and tumble seat assembly

B - Operations – Transporting – 60 – N

Patent

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Details

B60N 2/015 (2006.01) B60N 2/10 (2006.01) B60N 2/20 (2006.01) B60N 2/30 (2006.01) B60N 2/36 (2006.01)

Patent

CA 2368074

A seat assembly (14) for use in an automotive vehicle and pivotal between a seating position and a fold and tumbled position. The seat assembly (14) includes a seat cushion (18) and a seat back (20) pivotally connected to the seat cushion for pivotal movement between an upright seating position and a folded position. The seat assembly includes a locking latch (46) supported by the seat cushion and pivotal between a latched position for releasably latching the seat assembly (14) to the floor (16) of the vehicle and an unlatched position for releasing the seat assembly to allow the seat assembly to pivot from the seating position to the tumbled position. The seat assembly further includes a blocking member (70) coupled between the seat back (20) and the locking latch (46) and operable in a first blocking position for engaging the seat back and preventing the locking latch from releasing from the latched position when the seat back is in the upright seating position. The blocking member (70) is also operable in a second blocking position for engaging the seat back in the folded position when the locking latch is in the unlatched position to prevent pivotal movement of the seat from the folded position to the upright seating position until the locking latch is returned to the latched position securing the seat assembly in the seating position.

La présente invention concerne un assemblage de siège (14), destiné à un véhicule automobile, pivotable entre une position assise et une position pliée et basculée. Cet assemblage (14) comprend un siège (18) et un dossier (20), en relation de connexion pivotante avec le siège, permettant le passage entre une position relevée d'occupation et une position pliée. L'assemblage de siège comprend un verrou de sécurité (46) supporté par le siège, pouvant pivoter entre une position de condamnation qui maintient l'assemblage de siège (14) solidaire du plancher de véhicule (16) et une position déverrouillée libérant l'assemblage de siège et permettant de le pivoter en position basculée. L'assemblage de siège comprend aussi un élément bloquant (70), couplé entre le dossier (20) et le verrou de sécurité (46), dont la mise en oeuvre permet, dans une première position de blocage, d'engager le dossier et d'empêcher le verrou de sécurité de libérer l'assemblage lorsque le dossier est en position relevée. Cet élément bloquant (70) permet aussi, dans une seconde position de blocage, d'engager le dossier dans la position pliée lorsque le verrou de sécurité est dans la position de libération, afin d'empêcher le dossier de revenir dans sa position relevée jusqu'à ce que le verrou de sécurité soit replacé dans sa position de condamnation, fixant l'assemblage de siège dans la position d'occupation.

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