Vehicle seat track assembly

B - Operations – Transporting – 60 – N

Patent

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Details

B60N 2/08 (2006.01) B60N 2/12 (2006.01)

Patent

CA 2097776

A vehicle seat track assembly is provided for use with a vehicle seat having a seat cushion member and a seat back member pivotally moveable over the seat cushion member from a first relatively upright position to a second relatively folded position. The vehicle seat track assembly has a first track member, adapted for being securely mounted on a vehicle, and a second track member slidably mounted on the first track member, and for being securely affixed to the seat cushion member. A cable is adapted for operative interconnection between the seat back member and an arm of an actuating device. When the vehicle seat is moved forward for access to the rear seat area, the cable raises the arm from a rest position to a cocked position, which correspondingly moves a cam follower from a raised position to a lowered position. The cam follower restrainingly engages the arm in the cocked position against the biasing of a spring member. When the seat is returned to an occupancy position, the cam follower contacts a cam located on one of the track members at a set position, causing the cam follower to move from its lowered position to its raised position, thus releasing the arm to its rest position. The track locking mechanism is correspondingly allowed to return to its locking configuration, thus locking the vehicle seat in place at this set position.

Dispositif de fixation de siège de véhicule, pour sièges comprenant un coussin de siège et un dossier qui s'incline sur le coussin de siège lorsqu'il passe d'une première position relativement verticale à une seconde position relativement repliée. Le dispositif de fixation est constitué d'une coulisse, solidement fixée sur le véhicule, dans laquelle se déplace un coulisseau auquel est solidement fixé le siège. Un câble relie le dossier et le bras d'un dispositif de commande. Lorsque le siège est déplacé vers l'avant pour donner accès aux sièges arrière du véhicule, le câble soulève le bras et le fait passer d'une position neutre à une position relevée, ce qui entraîne simultanément le déplacement d'un galet de came d'une position relevée à une position abaissée. Le galet de came retient le bras en position relevée contre la force exercée par un ressort. Lorsque le siège est ramené en position normale, le galet de came entre en contact avec une came située sur la coulisse ou sur le coulisseau dans une position préétablie, ce qui provoque le déplacement du galet de came, d'une position abaissée à une position relevée. Le bras est alors débloqué et reprend sa position neutre tandis, que le mécanisme de verrouillage de la coulisse peut se verrouiller de nouveau et bloquer le siège dans la position préétablie.

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