초록 ▼

A motor vehicle seat including a foldable backrest and a lowerable seat part, wherein the backrest is foldable toward the seat part and a mechanism is provided so the seat part is lowerable from a use position into a forward position, wherein a coupling element is provided to couple folding-down of

A motor vehicle seat including a foldable backrest and a lowerable seat part, wherein the backrest is foldable toward the seat part and a mechanism is provided so the seat part is lowerable from a use position into a forward position, wherein a coupling element is provided to couple folding-down of the backrest to forward movement and lowering of the seat part, and a locking mechanism is provided to lock the seat part in the use position. The coupling element may unlock the locking mechanism as the backrest is folded forward toward the seat part at a predefined angle of inclination, so that inclination of the backrest can be changed while the seat part is locked by folding the backrest forward to the predefined angle of inclination and the unlocked seat part is lowered into the forward position by folding the backrest further forward.

대표청구항 ▼

What is claimed is: 1. A motor vehicle seat comprising: a backrest; and a seat part; said backrest being foldable toward the seat part; said motor vehicle seat further comprising: a mechanism for lowering the seat part from a use position into a forward position; a locking mechanism for locking the

What is claimed is: 1. A motor vehicle seat comprising: a backrest; and a seat part; said backrest being foldable toward the seat part; said motor vehicle seat further comprising: a mechanism for lowering the seat part from a use position into a forward position; a locking mechanism for locking the seat part in the use position; and a coupling member for coupling the folding-down of the backrest to the forward movement and lowering of the seat part; wherein the coupling member couples the folding-down of the backrest to the forward movement and lowering of the seat part in such a manner that: the locking mechanism is automatically unlocked as the backrest is folded forward toward the seat part when a predefined angle of inclination is reached and the backrest is spaced apart from the seat part, the inclination of the backrest can be changed while the seat part is locked by folding the backrest forward up to the predefined angle of inclination and the unlocked seat part can be lowered into the forward position by folding the backrest further forward toward the seat part. 2. The motor vehicle seat as claimed in claim 1, in which the coupling member comprises at least one coupling lever, one end of which can pivot about an axle that is spaced apart from a backrest pivot axle and the other end of which is articulated to the mechanism for lowering the seat part into the forward position. 3. The motor vehicle seat as claimed in claim 2, in which the coupling lever respectively actuates a locking element in order to unlock the seat part when the backrest is folded forward to the predefined angle of inclination. 4. The motor vehicle seat as claimed in claim 3, in which the locking element has a locking claw which engages in a fixed locking catch or in a fixed locking bolt or presses down said locking catch or locking bolt. 5. The motor vehicle seat as claimed in claim 4, in which the locking element comprises a first locking lever which can pivot about a fixed pivot axle. 6. The motor vehicle seat as claimed in claim 5, in which the coupling lever respectively has a protrusion or a pin which comes to bear against the associated locking lever when the predefined angle of inclination is reached, in order to pivot said locking lever about the pivot axle when the backrest is folded further forward. 7. The motor vehicle seat as claimed in claim 2, in which the locking mechanism comprises a first and a second locking element which cooperate with one another in order to lock the seat part in the use position. 8. A motor vehicle seat, comprising a foldable backrest and a lowerable seat part, wherein: the backrest can be folded toward the seat part and a mechanism is provided so that the seat part can be lowered from a use position into a forward position; a coupling member is provided in order to couple the folding-down of the backrest to the forward movement and lowering of the seat part; and a locking mechanism is provided in order to lock the seat part in the use position; wherein the coupling member is designed to unlock the locking mechanism as the backrest is folded forward toward the seat part when a predefined angle of inclination is reached, so that the inclination of the backrest can be changed while the seat part is locked by folding the backrest forward up to the predefined angle of inclination and so that the unlocked seat part can be lowered into the forward position by folding the backrest further forward; the coupling member comprises at least one coupling lever, one end of which can pivot about an axle that is spaced apart from a backrest pivot axle and the other end of which is articulated to the mechanism for lowering the seat part into the forward position; the locking mechanism comprises a first and a second locking element which cooperate with one another in order to lock the seat part in the use position; and the coupling lever cooperates with the second locking element such that the second locking element releases the first locking element when the backrest is folded further forward from the predefined angle of inclination, in order to release the seat part. 9. The motor vehicle seat as claimed in claim 8, in which the first and second locking element is in each case designed as a pivotably mounted lever. 10. The motor vehicle seat as claimed in claim 9, in which the second lever comprises a shoulder and a bearing surface opposite the shoulder for coupling to the coupling lever, wherein the shoulder releases the first lever when the backrest is folded further forward from the predefined angle of inclination. 11. The motor vehicle seat as claimed in claim 10, in which a locking bolt is connected or coupled to the seat part. 12. The motor vehicle seat as claimed in claim 8, in which a rotary slide articulation is formed at the other end of the respective coupling lever, wherein the respective coupling lever has a recess, preferably a longitudinal hole, in which there engages a protrusion, preferably a pin, of one lever of the mechanism for lowering the seat part into the forward position, and wherein the protrusion bears against a rear end of the recess when the seat part is pivoted forward and lowered as the backrest is folded forward. 13. The motor vehicle seat as claimed in claim 12, wherein the recess is designed such that a gap or clearance is left between the protrusion and the rear end of the recess when the backrest is inclined at the predefined angle of inclination and the seat part is unlocked. 14. A motor vehicle seat, comprising a foldable backrest and a lowerable seat part, wherein: the backrest can be folded toward the seat part and a mechanism is provided so that the seat part can be lowered from a use position into a forward position; a coupling member is provided in order to couple the folding-down of the backrest to the forward movement and lowering of the seat part; and a locking mechanism is provided in order to look the seat part in the use position; wherein the coupling member is designed to unlock the locking mechanism as the backrest is folded forward toward the seat part when a predefined angle of inclination is reached, so that the inclination of the backrest can be changed while the seat part is locked by folding the backrest forward up to the predefined angle of inclination and so that the unlocked seat part can be lowered into the forward position by folding the backrest further forward; the coupling member comprising at least one coupling lever, one end of which can pivot about an axle that is spaced apart from a backrest pivot axle and the other end of which is articulated to the mechanism for lowering the seat part into the forward position; the coupling lever respectively actuating a locking element in order to unlock the seat part when the backrest is folded forward to the predefined angle of inclination; and the mechanism for lowering the seat part into the forward position comprises a lever which can pivot together with the locking element about a common axle. 15. A motor vehicle seat comprising a foldable backrest and a lowerable seat part, wherein: the backrest can be folded toward the seat part and a mechanism is provided so that the seat part can be lowered from a use position into a forward position; a coupling member is provided in order to couple the folding-down of the backrest to the forward movement and lowering of the seat part; and a locking mechanism is provided in order to lock the seat part in the use position; wherein the coupling member is designed to unlock the locking mechanism as the backrest is folded forward toward the seat part when a predefined angle of inclination is reached, so that the inclination of the backrest can be changed while the seat part is locked by folding the backrest forward up to the predefined angle of inclination and so that the unlocked seat part can be lowered into the forward position by folding the backrest further forward; wherein the coupling lever is designed as a two-part lever, wherein the mechanism for lowering the seat part into the forward position has a stop catch or carrier so that the coupling lever bearing against the stop catch or carrier actuates the mechanism for lowering the seat part into the forward position when the backrest is folded forward. 16. The motor vehicle seat as claimed in claim 15, in which the mechanism for lowering the seat part into the forward position comprises a further carrier for returning the seat part from the forward, lowered position to the use position. 17. The motor vehicle seat as claimed in claim 15, in which a releasable stop device is provided for fixing the angle of inclination of the backrest. 18. The motor vehicle seat as claimed in claim 17, in which the releasable stop device is designed to predefine a plurality of different angles of inclination. 19. The motor vehicle seat as claimed in claim 15, in which the mechanism for lowering the seat part into the forward position is designed as a pivot lever device with a first and a second pivot lever. 20. The motor vehicle seat as claimed in claim 15, in which the mechanism for lowering the seat part into the forward position comprises at least one guide member for guiding the unlocked seat part as it is moved forward and lowered. 21. The motor vehicle seat as claimed in claim 15, in which the backrest can be folded onto the seat part in order to create a loading area. 22. A motor vehicle seat, in particular a motor vehicle rear seat comprising: a backrest; and a seat part; said backrest being foldable toward the seat part; said motor vehicle seat further comprising: a mechanism for lowering the seat part from a use position into a forward position; a locking mechanism for locking the seat part in the use position; and a coupling member for coupling the folding-down of the backrest to the forward movement and lowering of the seat part; wherein the coupling member couples the folding-down of the backrest to the forward movement and lowering of the seat part in such a manner that the locking mechanism is automatically unlocked as the backrest is folded forward toward the seat part when a predefined angle of inclination is reached and the backrest is spaced apart from the seat part, that the inclination of the backrest can be changed while the seat part is locked by folding the backrest forward up to the predefined angle of inclination and that the unlocked seat part can be lowered into the forward position by folding the backrest further forward toward the seat part; wherein the mechanism for lowering the seat part into the forward position is designed as a pivot lever device with a first and a second pivot lever; and the coupling member comprises at least one coupling lever, one end of which can pivot about an axle that is spaced apart from a backrest pivot axle and the other end of which is articulated to the mechanism for lowering the seat part into the forward position. 23. A motor vehicle seat comprising a foldable backrest and a lowerable seat part, wherein: the backrest can be folded toward the seat part and a mechanism is provided so that the seat part can be lowered from a use position into a forward position; a coupling member is provided in order to couple the folding-down of the backrest to the forward movement and lowering of the seat part; and a locking mechanism is provided in order to lock the seat part in the use position; wherein the coupling member is designed to unlock the locking mechanism as the backrest is folded forward toward the seat part when a predefined angle of inclination is reached, so that the inclination of the backrest can be changed while the seat part is locked by folding the backrest forward up to the predefined angle of inclination and so that the unlocked seat part can be lowered into the forward position by folding the backrest further forward; said coupling member comprising at least one coupling lever, one end of which can pivot about an axle that is spaced apart from a backrest pivot axle and the other end of which is articulated to the mechanism for lowering the seat part into the forward position; said coupling lever respectively actuating a locking element in order to unlock the seat part when the backrest is folded forward to the predefined angle of inclination; said locking element having a fixed locking claw which engages in a locking catch or in a fixed locking bolt or presses down said locking catch or locking bolt; said locking element comprising a first locking lever which can pivot about a fixed pivot axle; wherein the coupling lever respectively has a protrusion or a pin which comes to bear against the associated locking lever when the predefined angle of inclination is reached, in order to pivot said locking lever about the fixed pivot axle when the backrest is folded further forward.