초록 ▼

A vehicle seat in which the backrest is controlled in terms of rotation about an axis of pivoting by an adjustment mechanism which includes an input shaft, a fixed flange integral with the framework of the seat cushion, and a mobile flange which can rotate about an axis parallel to the axis of pivot

A vehicle seat in which the backrest is controlled in terms of rotation about an axis of pivoting by an adjustment mechanism which includes an input shaft, a fixed flange integral with the framework of the seat cushion, and a mobile flange which can rotate about an axis parallel to the axis of pivoting of the backrest but offset therefrom. The mobile flange is integral with a pin which penetrates an oblong slot in the framework of the backrest so as to be able to rotate inside this slot and so as to be able to slide radially with respect to the axis of pivoting of the backrest. This pin is further from the axis of pivoting of the backrest than from the axis of rotation of the mobile flange, so that the adjustment mechanism can withstand low torques.

대표청구항 ▼

A vehicle seat including a seat cushion and a backrest each equipped with a rigid framework, the backrest being mounted so that it can pivot with respect to the seat cushion about a horizontal axis of pivoting, the pivoting of the backrest being controlled by an adjustment mechanism which includes a

A vehicle seat including a seat cushion and a backrest each equipped with a rigid framework, the backrest being mounted so that it can pivot with respect to the seat cushion about a horizontal axis of pivoting, the pivoting of the backrest being controlled by an adjustment mechanism which includes a rotary input member, a support member fixed to one of the two frameworks, termed first framework, and a rotary output member driving the other of the two frameworks, termed second framework, this output member having an axis of rotation parallel to the axis of pivoting of the backrest, wherein the axis of rotation of the output member of the adjustment mechanism is offset with respect to the axis of pivoting of the backrest, the output member driving the second framework via a linkage member which is mounted so that it can slide at least radially with respect to an axis chosen from the axis of pivoting of the backrest and the axis of rotation of the output member, the linkage member furthermore being mounted so that it can pivot about an axis parallel to the axis of pivoting of the backrest, the pivoting of the linkage member taking place with respect to either the output member or the second framework, the axis of pivoting of the linkage member being separated from the axis of rotation of the output member by a first distance, and the axis of pivoting of the linkage member being separated from the axis of pivoting of the backrest by a second distance which is greater than the first distance.