B - Operations – Transporting – 60 – N
Patent
B - Operations, Transporting
60
N
B60N 2/20 (2006.01)
Patent
CA 2089203
A seatback latching mechanism for use in a vehicle seat assembly having a seatback member pivotally tiltable over a seat cushion member is disclosed. The latching mechanism is used to secure the seatback member against pivotal movement in a forward angular direction relative to the seat cushion member, when the seatback member in its relatively upright angular orientation, by latching first and second hinged members. There are first and second stop means securely affixed to the first hinged member, first and second abutment means securely affixed to the second hinged member, and a selectively positionable latch member rotatably mounted on the first hinged members for movement between a latching position and an unlatching position. When the selectively positionable latch member is in the latching position, the first stop means and the first abutment means are in intimate contact with one another so as to preclude unwanted pivotal movement of the first and second hinged members with respect to each other in the rearward angular direction. Further, a first contact surface on the selectively positionable latch member and the second abutment means are in intimate contact with one another, and the selectively positionable latch member is physically interposed between the second stop means and the second abutment means so as to preclude unwanted pivotal movement of the first and second hinged members with respect to each other in the forward angular direction. Resultingly, there is substantially no radial lost motion between the first hinged member and the second hinged member in the first relative angular orientation.
Cette invention concerne un mécanisme de verrouillage pour dossier de siège d'automobile inclinable vers l'avant. Le mécanisme de verrouillage sert à empêcher le dossier de pivoter vers l'avant lorsqu'il est en position relativement verticale, en bloquant les deux éléments de la charnière d'articulation du dossier. Il se compose d'une première et d'une seconde butées solidaires d'un premier élément de la charnière, d'un premier et d'un second butoirs solidaires du deuxième élément de la charnière d'articulation et d'un élément de verrouillage articulé au premier élément de la charnière d'articulation et manoeuvrable entre une position de verrouillage et une position de déverrouillage. Lorsque l'élément de verrouillage manoeuvrable est en position de verrouillage, les premiers butoir et butée sont en contact étroit pour empêcher un mouvement de pivotement relatif intempestif des premier et second éléments de la charnière d'articulation vers l'arrière. De plus, une première surface de contact sur l'élément de verrouillage manoeuvrable et le second butoir sont en contact étroit et l'élément de verrouillage manoeuvrable est intercalé entre la seconde butée et le second butoir pour empêcher le pivotement intempestif des deux éléments de la charnière d'articulation l'un par rapport à l'autre, vers l'avant. Par conséquent, on obtient une perte d'amplitude de mouvement radial quasi nulle entre les premier et second élément de la charnière d'articulation, dans une première orientation angulaire relative.
He Simon Xunnan
Premji Gulam
Bertrand Faure Ltd.
Hofbauer Patrick J.
LandOfFree
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