Easy-entry adjustment mechanism for dive-down vehicle seats or seat systems
An adjustment mechanism, in particular easy-entry adjustment mechanism of a vehicle seat or a vehicle seat within a multi-part seat bench or an undivided seat bench, in particular for easier entry to an interior of a motor vehicle, wherein, for carrying out a first step, the backrest part of the vehicle seat/of the seat bench has a backrest unlocking unit, by means of which the backrest part of the vehicle seat/of the seat bench is unlockable and moveable in relation to the seat part of the vehicle seat/of the seat bench into a predeterminable folded position coming closer to the seat part. In a second adjustment movement following a first adjustment movement, the vehicle seat/the seat bench is further movable on the seat rail in the same direction by a further horizontal second adjustment distance.
1. An adjustment mechanism of a vehicle seat to facilitate entry into an interior of a motor vehicle, the adjustment mechanism comprising:
a backrest unlocking unit of a backrest part of the vehicle seat, wherein the backrest unlocking unit carries out a first step, through which the backrest part of the vehicle seat is unlocked, and is brought into a predeterminable folded position in which the backrest part is pivoted closer to a seat part of the vehicle seat,
wherein, in the folded position of the vehicle seat, the backrest unlocking unit performs a second step, in which a first adjustment movement of the vehicle seat is carried out, wherein the backrest unlocking unit acts in a releasing manner on a slide unlocking unit of a slide carrying the vehicle seat such that the vehicle seat is horizontally displaced by the slide along a first adjustment distance and, simultaneously, the seat part is moved vertically downwards by a predetermined vertical displacement distance via at least one pivoting arm disposed in a front region of the seat part,
wherein, in a second adjustment movement, the slide subsequently acts in a releasing manner on a seat rail unlocking unit of a seat rail carrying the slide so that the vehicle seat is further advanced on the seat rail, in a third step, such that the vehicle seat is further horizontally displaced a second adjustment distance, and
wherein the slide is integrated in the seat rail, wherein the slide has a top slide and a base slide and the seat rail has a seat top rail and a seat bottom rail, wherein a top surface of the seat top rail and a top surface of the top slide disposed on the base slide are arranged inside the seat bottom rail in one plane.
2. The adjustment mechanism according to claim 1 , wherein the adjustment of the backrest part is directly, reversibly and forcibly coupled onto the seat part in the first step by a rocker disposed between the backrest part and the seat part.
3. The adjustment mechanism according to claim 1 , wherein the backrest part is supported via a fitting connecting to a side part, and wherein the side part is provided over the slide.
4. The adjustment mechanism according to claim 3 , wherein on the side part, a one-piece or multi-piece plunger element is arranged, which when reaching the folded position of the backrest part after the first step, is displaced by a transmission element arranged at the backrest part, and wherein the plunger element unlocks a locking element of the slide unlocking unit, and wherein the top slide relative to the base slide in the second step is movable along the first adjustment distance and the vehicle seat is horizontally displaceable.
5. The adjustment mechanism according to claim 3 , wherein the slide has the top slide and the base slide, wherein an unlocking element is disposed in the front region of the seat rail, which engages indirectly or directly in an unlocking lever of the seat rail unlocking unit, wherein the top slide substantially abuts on the unlocking element at an end of the second adjustment movement, and by actuating the unlocking lever, causes an unlocking of the seat top rail relative to the seat bottom rail so that the seat top rail associated with the base slide is movable in relation to a body-mounted seat bottom rail of the seat rail in the third step along the second adjustment distance, and the vehicle seat is further horizontally displaceable.