DE102019001067A1 - Vehicle seat for an interior of a motor vehicle - Google Patents

Abstract

The invention relates to a vehicle seat for an interior of a motor vehicle, comprising a seat part (10) and a backrest part (14) displaceable on a pivot axis (S), and a seat pan part (16) which, when the back rest part is folded over, ( 14) from a use position in a direction of the seat pan part (16) folded folding position from a sitting position in a lowered evasive position is displaceable, wherein a locking device (26) is provided, by means of which the seat pan part (16) against displacement from the sitting position in the lowered evasive position can be blocked and released.

Description

The invention relates to a vehicle seat for an interior of a motor vehicle according to the preamble of patent claim 1.

From the DE 103 17 238 A1 is already a vehicle seat with a seat part and with a pivotable about a pivot axis held on this backrest part known. In the area of the seat part, a seat pan part is provided, which can be displaced from a sitting position into a deflected position when the backrest part is folded from a use position into a folded position folded in the direction of the seat pan part in order to be able to lower the backrest part more favorably. This circumvents the problem that when folding the backrest part and hitting the seat pan part, the respective pads ensure that, for example, the backrest part can not be brought into a completely flat position or that it may come through excessive compression damage to the upholstery.

A disadvantage of the known prior art, however, is that the seat pan part can be brought not only when folding the backrest part in the lowered evasive position, but for example in an accidental force application in consequence, for example, a head-on collision of the motor vehicle. In this case, it may come to a dive of the seat occupant under the seat belt, which is essential to avoid.

Object of the present invention is therefore to provide a vehicle seat of the type mentioned, which is optimized in terms of its accident behavior.

This object is achieved by a vehicle seat with the features of claim 1. Advantageous embodiments with expedient developments of the invention are the subject of the dependent claims.

The vehicle seat according to the invention comprises a seat part and a backrest part displaceable about a pivot axis. The seat part comprises a seat pan part, which can be displaced from a sitting position into a lowered deflected position when the backrest part is folded from a use position into a folded position folded in the direction of the seat part or the seat pan part.

In order to create a vehicle seat, which is optimized in terms of its accident behavior, a locking device is provided according to the invention, by means of which the seat pan part against a shift from the sitting position in the lowered evasive position can be locked and unlocked. By means of the locking device, therefore, the seat pan part can be reliably held in the sitting position, so that, for example, in an accidental force due to a head-on collision of the motor vehicle, a seat occupant can submerge under the seat belt, because the seat pan part has moved to the lowered evasive position. This locking device is then solvable in a simple manner when the backrest part is to be moved from the position of use in the folding position, for example, to create a flat loading floor. The operation of the locking device can in particular automatically, but under certain circumstances also be done manually.

In an advantageous embodiment of the invention, the locking device in response to the folding movement of the backrest part from the use position in the folded position can be actuated. As a result, a particularly reliable and comfortable displacement of the seat pan part from the sitting position into the evasive position can be made possible.

A further advantageous embodiment provides that the actuation of the locking device by means of a Bowden cable or the like remote control element takes place. Such a Bowden cable can in particular be coupled to a movement, for example, of the backrest part or, if appropriate, for example also be operated manually.

In this context, it has proved to be further advantageous if the Bowden cable is connected to the backrest, so as to cause the displacement of the seat pan part in the lowered evasive position with a correspondingly large forward displacement of the backrest part.

As further advantageous, it has been shown, when the Bowden cable or the like remote control element comprises a force compensating element, by means of which a triggering and / or closing of the locking device is adjustable. By this force compensation element can thus be set, for example, to what extent an adjustment of the backrest part should be made without this leading to a displacement of the seat pan part in the lowered evasive position, and from when such a shift should begin, for example. Conversely, of course, a closing of the locking device can be adjusted so that this takes place only when the seat pan part is brought from the lowered evasive position back into the sitting position.

Finally, it has proved to be advantageous if the seat pan part is supported on the seat part via a four-point joint kinematics and can be displaced by the movement thereof between the sitting position and the escape position. On the one hand, such a four-point joint kinematics is particularly reliable and, on the other hand, makes it possible to obtain a defined displacement movement of the seat pan part from the sitting position into the escape position - and back.

Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment and from the drawings. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or in the figures alone can be used not only in the respectively specified combination but also in other combinations or in isolation, without the scope of To leave invention.

• 1 eine ausschnittsweise Perspektivansicht auf einen Fahrzeugsitz mit einem Sitzteil und mit einem um eine Schwenkachse verlagerbar an diesem gehaltenen Rückenlehnenteil, wobei das Sitzteil ein Sitzwannenteil umfasst, welches aus einer in 1 gezeigten Sitzstellung in eine abgesenkte Ausweichstellung verlagert werden kann, wenn das Rückenlehnenteil aus der in 1 gezeigten Gebrauchsstellung in Richtung des Sitzwannenteils geklappt wird;
• 2 eine ausschnittsweise Perspektivansicht auf den Fahrzeugsitz gemäß 1 bei weggelassenem Sitzwannenteil, wodurch insbesondere eine Sperreinrichtung erkennbar wird, mittels welcher das Sitzwannenteil gegen eine Verlagerung aus der Sitzstellung in die abgesenkte Ausweichstellung sperrbar und freigebbar ist;
• 3 eine Draufsicht auf das Sitzteil bei weggelassenem Sitzwannenteil analog zu 2;
• 4 eine Seitenansicht auf den Fahrzeugsitz im Eckbereich zwischen dem Sitzteil und dem Rückenlehnenteil, wobei ein Bowdenzug erkennbar ist, mittels welchem die Sperreinrichtung fernbetätigbar ist;
• 5 eine ausschnittsweise Perspektivansicht auf das Sitzteil bei weggelassenem Sitzwannenteli, wobei insbesondere ein Sperrhaken der Sperreinrichtung erkennbar ist, welcher mit einem korrespondierenden Kinematikhebel des Sitzwannenteils in Eingriff ist und hierdurch eine Verlagerung des Sitzwannenteils aus der Sitzstellung in die abgesenkte Ausweichstellung verhindert;
• 6 eine ausschnittsweise Seitenansicht auf den Fahrzeugsitz im Bereich des Sitzteils mit dem daran gelagerten Sitzwannenteil sowie dem unteren Teil des Rückenlehnenteils, an welchem eine Koppel einer Steuerungsmechanik angeordnet ist, mittels welcher eine Klappbewegung des Rückenlehnenteils in eine Verlagerung des Sitzwannenteils aus der Sitzstellung in die abgesenkte Ausweichstellung umsetzbar ist;
• 7 eine Perspektivansicht auf die ausschnittsweise Perspektivansicht auf die Sperreinrichtung gemäß 6, wobei insbesondere ein Kulissenelement erkennbar ist, welches mit einem Koppelteil der Koppel zusammenwirkt und beim Umklappen des Rückenlehnenteils nach Erreichen eines Endanschlags eine Verlagerung des Kulissenelements bewirkt, durch welche eine Verlagerung des Sitzwannenteils aus der Sitzstellung in die abgesenkte Ausweichstellung umsetzbar ist; und in
• 8 eine weitere Seitenansicht auf den Fahrzeugsitz analog zu 6 bei weggelassener Koppel und weggelassenem Kulissenelement, wodurch eine Sperrkulisse im Bereich des Sitzteils erkennbar wird, in welcher das Koppelteil der Koppel geführt ist, wodurch eine Bewegung des Koppelteils relativ zum Sitzteil begrenzt ist.

Showing:

• 1 a partial perspective view of a vehicle seat with a seat part and with a pivotable about a pivot axis held on this backrest part, wherein the seat part comprises a seat pan part, which consists of a in 1 seat position shown can be moved to a lowered evasive position when the backrest part of the in 1 shown use position is folded in the direction of the seat pan part;
• 2 a fragmentary perspective view of the vehicle seat according to 1 with omitted seat pan part, whereby in particular a locking device can be seen, by means of which the seat pan part against a shift from the sitting position in the lowered evasive position can be locked and unlocked;
• 3 a plan view of the seat part with omitted seat pan part analogous to 2 ;
• 4 a side view of the vehicle seat in the corner region between the seat part and the backrest part, wherein a Bowden cable is recognizable, by means of which the locking device is remotely operable;
• 5 a partial perspective view of the seat part with omitted Sitzwannenteli, in particular a locking hook of the locking device can be seen, which is in engagement with a corresponding kinematic lever of the seat pan part and thereby prevents a displacement of the seat pan part from the sitting position to the lowered evasive position;
• 6 a partial side view of the vehicle seat in the region of the seat part with the seat pan part mounted thereon and the lower part of the backrest part on which a coupling of a control mechanism is arranged, by means of which a folding movement of the backrest part in a displacement of the seat pan part from the sitting position in the lowered alternate position feasible is;
• 7 a perspective view of the fragmentary perspective view of the locking device according to 6 in particular, a link element is recognizable, which cooperates with a coupling part of the coupling and upon folding of the backrest part after reaching an end stop causes a displacement of the link element, by which a displacement of the seat pan part from the sitting position can be implemented in the lowered evasive position; and in
• 8th another side view of the vehicle seat analogous to 6 when omitted coupler and omitted link element, whereby a Sperrkulisse in the region of the seat part is recognizable, in which the coupling part of the coupling is guided, whereby a movement of the coupling part is limited relative to the seat part.

In 1 is shown in a partial perspective view of a vehicle seat for an interior of a motor vehicle. This vehicle seat includes a seat part 10 which is longitudinally adjustable on respective seat rails 12 is arranged. On the seat part 10 is a backrest part 14 around a pivot axis S pivotally mounted.

On the seat part 10 is a seat pan part in a manner to be described in more detail below 16 stored, which carries a corresponding pad for inserting the seat occupant, but here - as well as the pad of the backrest part 14 - Not shown.

The backrest part 14 is adjustable about the pivot axis S in its inclination. Moreover, the backrest part 14 from its position of use shown here in a direction of the seat pan part 16 folded folding position movable, in which this near the seat pan part 16 to come to rest.

To now achieve that backrest part 14 as far as can be folded, that, for example, a flat cargo area is created, it is necessary that the seat pan part 16 can be moved from the sitting position shown here in a lowered evasive position in the manner described in more detail below. For this purpose, the seat pan part is over a Four-point joint kinematics 18 swiveling on respective side cheeks 20 stored. Respective front kinematics levers 22 are in there 1 recognizable, which on the one hand on the respective side cheeks 20 and on the other hand on the seat pan part 16 are stored. For example, two rear kinematics levers are in 3 recognizable, which is the seat part 10 with omitted seat pan part 16 shows. About these other kinematics levers 24 is the seat pan part 16 in a rear area on the seat part 10 stored. About the thus created four-point joint kinematics 18 is the seat pan part 16 from the in 1 seat position shown in an unrecognizable alternate position forward and down relocatable.

However, this displacement movement should only be achieved if the backrest part 14 actually in a folding position near the seat pan part 16 is spent. For this reason, in the present case - viewed in the forward direction - in a left side area a locking device 26 provided, inter alia, from the 2 and 3 in a respective, perspective plan view and a complete plan view of the seat part 10 is recognizable. Moreover, this locking device 26 also from 5 in a partial perspective view of the seat part 10 with omitted seat pan part 16 recognizable.

This locking device 26 essentially comprises a locking lever 28 , which has a bolt 30 with one of the two rear kinematics levers 24 is engaged, over which the seat pan part 16 parallelogrammartig pivoted on the seat part 10 is stored. Like this from the 2 . 3 and 5 can be seen, in the present case is the locking lever 28 engaged with the bolt 30 on the side of the kinematic lever 24 , This is the seat pan part 16 in this case held in his sitting position, in which a vehicle occupant can sit on the vehicle seat.

The release of the locking device 26 takes place in the present case by means of a Bowden cable 32 in particular in the 2 to 5 is recognizable. The Bowden cable 32 is on the - viewed in the forward direction - right outside of the vehicle seat in the range of a bracket 34 with the backrest part 14 connected. This is especially in 4 recognizable. The Bowden cable 32 is then guided to a force compensation element 36 , via which by means of a spring element 38 a different train path is taken, which, depending on the position of the Bowden cable 32 or depending on the inclination of the backrest part 14 arises. The backrest part 14 itself should be able to be adjusted in a comfort range by an angular amount to the rear and to the front. Will the backrest part 14 However, further forward and the pivot axis S is pivoted, this leads to a larger way around which the Bowden cable 32 from his associated soul 40 is pulled out. This is especially out 4 recognizable. Is therefore a certain Auszugsweg the Bowden cable 32 exceeded, so performs the force compensation element 36 To do that, make a corresponding pull move to another, with the first Bowden cable 32 in operative contact and with the force compensating element 36 Connected Bowden cable 42 , over which in turn the locking lever 28 can be operated. Will therefore the backrest part 14 folded over his pivot axis for the actual adjustment forward about the pivot axis S, this ultimately leads to a pulling motion in the Bowden cable 42 which, in turn, the engagement between the locking lever 28 and the associated kinematics lever 24 triggers, so that the displacement of the seat pan part 16 from the in 1 seat position shown can begin in the lowered evasive position.

On the opposite side of the seat in the present case is a different, but substantially similar to the locking device 26 acting control mechanism 44 intended. This control mechanism 44 will be explained below on the basis of 6 to 8th be explained in more detail. The control mechanics 44 This includes first a coupling 46 , which - like this from the 6 and 7 in a partial side view or a fragmentary perspective view of the vehicle seat in the region of the pivot axis S between the backrest part 14 and the seat part 10 recognizable - on the one hand at a storage location 48 is pivotally connected to the backrest part. On the other hand, the coupling shows 46 a bolt-like coupling part 50 on which in a backdrop 52 a lever-like gate element 54 which, in turn, as in a synopsis of the 6 and 7 With 3 becomes clear - rotatable with the - viewed in the forward direction - rear right kinematic lever 22 connected is. This ultimately means that a rotation of the link element 54 in the area of its axis 56 to a displacement movement of the seat pan part 16 from the in 1 shown sitting position leads to the lowered evasive position, due to the fact that the axis 56 the backdrop element 54 rotatably with the right rear kinematikhebel 24 connects, in one of the bearing points of four-joint kinematics 18 ,

The coupling part 50 the paddock 46 But not only within the scenery 52 of the backdrop element 54 led, but - like this 8th with omitted link element 54 is shown - even within a Sperrkulisse 58 , which on the outside of the associated side cheek 20 of squab 10 is formed. The shape of this Sperrkulisse 58 is also in 7 recognizable.

When relocating the backrest part 14 the coupling part moves 50 in the form of the bolt thus on the one hand in the backdrop 52 and on the other hand in the Sperrkulisse 58 , Will now the backrest part 14 folded to the front, so moves the coupling part 50 from the into the 6 and 7 shown rear position, in which both the link element 54 as well as the Sperrkulisse 58 an upper stop 60 for a maximum shifted backrest backrest part 14 form, within the two scenes 52 . 58 in the direction of the front. As long as the coupling part 50 within the backdrop 52 can run, remains the backdrop element 54 in his in the 6 and 7 Standing position. Is due to the folding movement of the backrest part 14 but the end of the scenery 52 in the area of a stop 62 achieved, it leads to a further pivotal movement of the backrest part 14 towards the front to that the backdrop element 54 around the axis 56 is shifted and thereby also the seat pan part 16 over the kinematics lever 24 and finally across the entire four-point joint kinematics 18 is moved from the sitting position in the lowered evasive position.

At the moment in which the coupling part 50 on the stop 62 of the backdrop element 54 meets, is also the locking lever 28 the locking device 26 solved on the other side of the vehicle seat, so that the displacement movement of the seat pan part 16 can go on. The barrier scenery 58 leaves a further movement of the coupling part 54 to, until the backrest part 14 completely folded down.

Will now the backrest part 14 brought back from the folded folding position back into the use position, this leads to an optionally spring-assisted return displacement of the seat pan part 16 and the backdrop element 54 until this with a stop 64 against a stop 66 in the area of the Sperrkulisse 58 strikes and can not be turned back further. From this moment on, as part of the return movement, the rear end position of the seat pan part is 16 , ie the sitting position, reached again. At this moment is also under control of the force compensation element 36 the locking lever 28 on the other side of the seat again with the corresponding bolt 30 at the corresponding kinematics lever 24 locked.

Through the scenery 52 and the Sperrkulisse 58 then the return displacement of the backrest part 14 as far as possible, until the coupling part 50 to the stop 60 in the area of the Sperrkulisse 58 and in the area of the backdrop element 54 arrives.

Overall, it is thus apparent that by means of the control mechanism 44 the folding movement of the backrest part 14 in a shift of the seat pan part 16 from the sitting position in the lowered position - and vice versa - can be implemented. This is done with a corresponding angular delay, which through the backdrop 58 is set.

Furthermore, it can be seen that in the present case different possibilities have been created on both sides of the vehicle, the displacement of the seat pan part 16 From the sitting position in the lowered evasive position to limit or allow. As included in the scope of the invention, it should be considered that both sides of the vehicle seat, a respective locking device 26 as well as a respective control mechanism 44 may be provided, or a combination of the two devices, as shown in the embodiment.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10317238 A1 [0002]

Claims (6)

Vehicle seat for an interior of a motor vehicle, comprising a seat part (10) and a backrest part (14) displaceable on a pivot axis (S), and a seat pan part (16) which, when the back rest part (14) is folded over Use position in a folded in the direction of the seat pan part (16) folding position from a sitting position in a lowered evasive position is displaced, characterized in that a locking device (26) is provided, by means of which the seat pan part (16) against a displacement from the sitting position in the lowered Dodge can be blocked and released. Vehicle seat after Claim 1 , characterized in that the locking direction (26) in response to the folding movement of the backrest part (14) from the position of use in the folded position is actuated. Vehicle seat after Claim 1 or 2 , characterized in that the actuation of the locking direction (26) by means of a Bowden cable (32, 42) or the like remote control element takes place. Vehicle seat after Claim 3 , characterized in that the Bowden cable (32) is connected to the backrest part (14). Vehicle seat after Claim 3 or 4 , characterized in that the Bowden cable (32, 42) or the like remote control element comprises a force compensating element (36), by means of which a triggering and / or closing of the locking direction (26) is adjustable Vehicle seat according to one of the preceding claims, characterized in that the seat pan part (16) via a four-point joint kinematics (18) on the seat part (10) is supported and displaced by the movement between the sitting position and the evasive position.

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