DE102019215769A1 - Seat support structure for a vehicle seat - Google Patents

Abstract

The invention relates to a seat, in particular a vehicle seat, with a seat adjustment arrangement (6) for height and / or inclination adjustment of the seat and a rail arrangement (4) for longitudinal adjustment of the seat, the seat adjustment arrangement (6) comprising a multi-joint arrangement (5) which is attached to the rail arrangement (4) is articulated, the rail arrangement (4) comprising a plurality of movable upper rail elements (4.2.1 to 4.2.3) and wherein the multi-joint arrangement (5) is articulated multiple times to the upper rail elements (4.2.1 to 4.2.3) is.

Description

The invention relates to a seat support structure for a vehicle seat, in particular for an autonomously driving vehicle.

Seat support structures are known from the prior art which are adjustable in length, height and / or inclination in a conventional manner. For example, such a seat support structure comprises a backrest pivotably arranged on a seat surface. The backrest is arranged on the seat surface, for example by means of a fitting, wherein the backrest can be pivoted electrically or manually relative to the seat surface.

The object of the present invention is therefore to provide an improved and simply and variably adjustable seat, in particular a vehicle seat, in particular an autonomously driving vehicle.

According to the invention, the object is achieved with a seat having the features of claim 1 or 2.

Advantageous further developments are the subject of the dependent claims.

The seat according to the invention comprises a seat adjustment arrangement for adjusting the height and / or inclination of the seat and a rail arrangement for adjusting the length of the seat, the seat adjustment arrangement comprising a multi-joint arrangement which is articulated to the rail arrangement, the rail arrangement comprising a plurality of movable upper rail elements and the multi-joint arrangement is hinged several times to the upper rail elements.

Another seat according to the invention, in particular a vehicle seat, comprises a seat support structure, which is in particular variably adjustable and comprises at least one seat back support structure and a seat surface support structure which is attached to a rail arrangement by means of a multi-joint arrangement with a plurality of articulated arms, the rail arrangement having a lower rail and a to the lower rail has movable upper rail, and wherein the upper rail is divided into at least two or more movable upper rail elements, to which articulated arms of the multi-joint arrangement are articulated or coupled, in particular coupled in terms of movement, for example rotatably coupled.

A seat with a multi-joint arrangement and multiple joint coupling to variably adjustable upper rail elements is essentially compact, weight-reduced and comparatively optimized in terms of components and is particularly variable in height, inclination and / or length.

A further development provides that a respective articulated arm is pivoted on the one hand on the rail side on one of the movable upper rail elements about a pivot point and on the other hand on the seat side, in particular on the seat surface support side, on the seat surface support structure.

The upper rail elements can, for example, be moved independently of and / or from one another or at least partially or all of them can be moved synchronously with one another.

The multi-joint arrangement is designed, for example, as a synchronous mechanism for longitudinal adjustment of the seat. For this purpose, the upper rail elements and the seat are firmly coupled to one another, the articulated arms being held or mounted in a stable manner, for example, so that during a synchronous movement, in particular longitudinal movement, of the upper rail elements relative to the lower rail, the seat can be moved longitudinally, in particular longitudinally displaceable, relative to the lower rail. For example, an actuator for the controlled movement of the associated upper rail element is provided for each upper rail element, with all actuators of the upper rail elements to be displaced synchronously to one another being controlled synchronously in order to move the upper rail elements simultaneously and by the same length, in particular to move them.

The multi-joint arrangement in combination with the variably adjustable upper rail elements is also designed as a lever mechanism, for example for height and / or inclination adjustment of the seat, with the joint arms being movably, in particular rotatably, mounted so that during a movement, in particular longitudinal movement, one or more the upper rail elements relative to the lower rail of the seat can be moved forwards, backwards, upwards and / or downwards, in particular tiltable and / or adjustable.

In particular, the upper rail elements can be moved independently of and / or from one another and / or at least partially or all synchronously with one another in such a way that the distance between the pivot points of the articulated arms can be changed. For example, a middle upper rail element can be moved relative to a front and a rear upper rail element viewed in the longitudinal direction, so that the distance between the pivot points of the articulated arms between the front and middle upper rail element is shortened and at the same time the distance between the pivot points of the articulated arms between the rear and central upper rail element enlarged or vice versa. This is enables the seat, in particular a seat surface support structure, to be tilted upwards at the front and downwards at the rear in a simple manner.

Another embodiment provides that the upper rail elements can be moved independently of and / or from one another or at least partially or all can be moved synchronously with one another in such a way that the pivot points of the articulated arms can be moved independently of one another or at least partly synchronously with one another. In particular, the angles of rotation of the articulated arms can be changed independently of one another and / or can be changed partially synchronously with one another.

The upper rail elements can also be moved independently of and / or from one another or at least partially or all synchronously with one another in such a way that the angles of rotation of the articulated arms linked to the upper rail elements can be changed or maintained independently of one another.

Such a combination of displaceable upper rail elements, in particular the displacement of individual, several or all upper rail elements independently of one another and / or at least partially synchronized with one another, with a multi-joint arrangement for coupling to the seat enables individual movement, in particular displacement and / or rotation, in a simple manner , several or all articulated arms independently of one another and resulting in a variable change in the angle of the articulated arms of the multi-joint arrangement, in particular a four-joint arrangement. As a result, different sitting positions can be set between a sitting position, a sitting comfort position and a seat bed position.

A further development provides that the articulated arms of the multi-joint arrangement are set up and articulated at the ends in such a way and can be adjusted independently of one another that the seat surface support structure is adjustable in height and / or inclination relative to the rail arrangement, in particular to the upper rail elements and the lower rail. The combination of a subdivided upper rail with variably adjustable upper rail elements and a multi-joint arrangement articulated several times to the variably adjustable upper rail elements creates a particularly simple seat adjustment arrangement, in particular a simple height and / or inclination adjuster, for the seat support structure.

For example, the upper rail is subdivided in such a way that a first upper rail element, a second upper rail element and a third upper rail element are formed. In this case, the first upper rail element, the second upper rail element and the third upper rail element can be moved, for example, synchronously with one another, in order to enable a longitudinal adjustment of the seat.

Alternatively or additionally, the first upper rail element can be moved relative to the second upper rail element and the third upper rail element in order to enable the seat, in particular the seat surface support structure, to be adjusted upwards or downwards.

As an alternative or in addition, the third upper rail element can be moved relative to the first upper rail element and the second upper rail element in order to allow the seat, in particular the seat surface support structure, to be inclined upwards or downwards.

Alternatively or additionally, the second upper rail element can be moved relative to the first upper rail element and the third upper rail element in order to enable the seat, in particular the seat surface support structure, to be inclined upwards or downwards at the front.

With such a variably adjustable seat support structure, the vehicle seat can be easily and quickly adjusted between different positions, such as a seated driving position, a seated comfort position, a seat zero position, a seat bed position and an inclined seat reclining position, and can be adjusted to one of these positions or any position in between according to the user's wishes .

• 1 schematisch in Seitendarstellung eine Sitzträgerstruktur in einer Sitzfahrposition,
• 2 schematisch in Seitendarstellung eine Sitzträgerstruktur in einer Sitzkomfortposition,
• 3 schematisch in Seitendarstellung eine Sitzträgerstruktur in einer Sitznullpunktposition,
• 4 schematisch in Seitendarstellung eine Sitzträgerstruktur in einer Sitzbettposition,
• 5 schematisch in Seitendarstellung eine Sitzträgerstruktur in einer geneigten Sitzliegeposition,
• 6 schematisch in Seitendarstellung ein Beispiel für einen Bewegungsablauf der Sitzträgerstruktur zwischen der Sitzfahrposition und der Sitzkomfortposition,
• 7 schematisch in perspektivischer Darstellung einen anderen Aspekt der Erfindung mit einer Schienenanordnung mit unterteilter Oberschiene und separaten Stellantrieben und
• 8A bis 8D schematisch in Seitenansicht auf ein Schienenpaar der Schienenanordnung nach 7 verschiedene Stellungen einer an diese Schienenanordnung angeordneten Sitzflächenstruktur eines Sitzes.

Embodiments of the invention are explained in more detail with reference to drawings. Show:

• 1 a schematic side view of a seat support structure in a seated driving position,
• 2 a schematic side view of a seat support structure in a seating comfort position,
• 3 a schematic side view of a seat support structure in a seat zero position,
• 4th a schematic side view of a seat support structure in a seat bed position,
• 5 a schematic side view of a seat support structure in an inclined seat reclining position,
• 6 a schematic side view of an example of a movement sequence of the seat support structure between the seated driving position and the seated comfort position,
• 7th schematically in a perspective view another aspect of the invention with a rail arrangement with a divided upper rail and separate actuators and
• 8A to 8D schematically in side view of a pair of rails according to the rail arrangement 7th Different positions of a seat surface structure of a seat arranged on this rail arrangement.

Corresponding parts are provided with the same reference symbols in all figures.

1 shows a schematic side view of a seat support structure 1 in a sitting driving position P1 . The seat support structure 1 forms a carrier, in particular a frame carrier, for upholstery (not shown) for a seat, in particular a vehicle seat, for example an autonomously driving vehicle. The arrangement of the seat in the vehicle defines the coordinate system used below, including a vertical axis Z , a longitudinal axis X and a transverse axis Y , where the vertical or vertical axis Z parallel to the vertical orientation of the vehicle, the longitudinal axis X parallel to the longitudinal direction of the vehicle and the transverse axis Y is aligned parallel to the vehicle transverse alignment.

The seat support structure 1 is variably adjustable and includes, for example, a seat back support structure 2 and a seat support structure 3 .

The seat support structure 3 is on a rail assembly 4th attached. For this purpose there is a multi-joint arrangement 5 intended.

The rail arrangement 4th includes a bottom rail 4.1 and one to the bottom rail 4.1 movable head rail 4.2 .

The multi-joint arrangement 5 comprises a plurality of articulated arms 5 to 5.3 . The articulated arm 5 is a front articulated arm in the longitudinal direction of the vehicle 5 , the articulated arm 5 is a central articulated arm in the longitudinal direction of the vehicle 5 and the articulated arm 5 is a rear articulated arm in the longitudinal direction of the vehicle 5 .

The bottom rail 4.1 is designed, for example, as a single, continuous and long rail. The head rail 4.2 is in at least two or more movable head rail elements 4.2.1 to 4.2.3 divided. On one top of the bottom rail 4.1 are the head rail elements 4.2.1 to 4.2.3 relative to each other and to the bottom rail 4.1 movably, in particular displaceably, mounted. For example, the top rail elements 4.2.1 to 4.2.3 by means of ball bearings on the lower rail 4.1 guided.

Alternatively, a conventional two-part rail arrangement (not shown in detail) can be provided from a single lower rail and an upper rail movable relative to this, with two or more movable upper rail elements on the upper rail, in contrast to the prior art 4.2.1 to 4.2.3 are movably mounted. These head rail elements 4.2.1 to 4.2.3 are in this alternative embodiment movable, in particular displaceable, mounted relative to one another and both to the individual lower rail and to the individual upper rail. For example, the upper rail elements 4.2.1 to 4.2.3 are guided by means of ball bearings on the individual upper rail (not shown). The following is the movement of the head rail elements 4.2.1 to 4.2.3 described in more detail, this movement both for the embodiment shown with a split head rail 4.2 as well as with the alternatively described and not shown individual head rail is executed the same.

The respective articulated arm 5 to 5.3 is on the rail side on one of the movable head rail elements 4.2.1 to 4.2.3 around an associated pivot point D1 to D3 rotatable and on the seat side on the seat support structure 3 hinged. Here are the articulated arms 5 to 5.3 around further pivot points on the seat side D4 to D5 rotatable on the seat support structure 3 hinged. The front articulated arm 5 is about another pivot point D6 on the middle articulated arm 5 pivoted.

The head rail elements 4.2.1 to 4.2.3 can be moved independently of and / or to one another, so that the distance between the pivot points D1 to D3 is mutable to each other. Alternatively or additionally, several or all of the upper rail elements 4.2.1 to 4.2.3 are moved synchronously with each other. The head rail element 4.2.1 is, for example, a front head rail element viewed in the longitudinal direction of the vehicle 4.2.1 , the head rail element 4.2.2 is a middle upper rail element seen in the longitudinal direction of the ferry 4.2.2 and the head rail element 4.2.3 is a rear upper rail element seen in the longitudinal direction of the ferry 4.2.3 . The middle head rail element 4.2.2 is in the vehicle longitudinal direction between the front upper rail element 4.2.1 and the rear head rail member 4.2.3 arranged.

By such a variable displacement of the pivot points D1 to D3 can adjust the angle of the articulated arms 5 to 5.3 the multi-joint arrangement 5 relative to the rail arrangement 4th can be changed variably, creating different seating positions P are made possible.

The multi-joint arrangement 5 is for example as a six-joint arrangement with three joint arms 5 to 5.3 and six points of articulation G1 to G6 educated. Alternatively, the multi-joint arrangement 5 Depending on the desired adjustability, it can also be designed as a four-joint or five-joint arrangement.

The articulated arms 5 to 5.3 are set up in this way and at one end on the seat carrier side on the seat surface carrier structure 3 or one of the articulated arms 5 and at the opposite end on the rail side of the rail arrangement 4th , especially on the head rail elements 4.2.1 to 4.2.3 , each articulated and adjustable independently of one another and / or at least partially synchronously adjustable with one another that the seat surface support structure 3 relative to the rail arrangement 4th in height H and / or the inclination N is adjustable.

By combining the subdivided head rail 4.2 with a multiple on the top rail elements 4.2.1 to 4.2.3 articulated multi-joint assembly 5 is a particularly simple seat adjustment arrangement 6 , in particular a simple height and / or inclination adjuster for the seat support structure 1 created.

The seat support structure 3 can also be designed in several parts. For example, the seat support structure 3 a base support element 3.1 and one on the base support member 3.1 upholstery support element articulated on the side facing away from the rail 3.2 include. The upholstery support element 3.2 is at a front end VE the seat support structure 3 via an articulated arm 5 on the base support element 3.1 hinged and at a rear end HE is the upholstery support element 3.2 by means of a further multi-joint arrangement 50 on the seat back support structure 2 hinged.

The multi-joint arrangements 5 , 50 are motion-coupled to one another and form a synchronous mechanism. That is, when one of the head rail elements moves 4.2.1 to 4.2.3 are the articulated arms 5 to 5 .n the multi-joint arrangements 5 , 50 forcibly moved, whereby the seat support structure 3 and the seat back support structure 2 move relative to each other and the seat support structure 1 in one of the various positions P1 to P5 is set.

For example is the seat adjustment assembly 6 formed by moving one or more of the head rail elements 4.2.1 to 4.2.3 along the track arrangement 4th relative to the lower rail 4.1 longitudinal L. an angle adjustment with an angle α the seat support structure 3 relative to the rail arrangement 4th and thus an inclination N the seat support structure 3 relative to the rail arrangement 4th initiate and / or an angle adjustment with an angle β the seat back support structure 2 relative to the rail arrangement 4th and / or an angle adjustment with an angle γ the seat back support structure 2 relative to the seat support structure 3 initiate.

For example is a motor unit 7th in the area of the rail arrangement 4th arranged. The motor unit 7th is designed, the separate and independently and / or partially synchronously movable upper rail elements 4.2.1 to 4.2.3 to control and moving, in particular moving or shifting at least one of the head rail elements 4.2.1 to 4.2.3 along the bottom rail 4.1 longitudinal L. initiate. For example is the motor unit 7th designed as a linear drive.

Such a variable setting of the pivot points D1 to D3 the articulated arms 5 to 5.3 through the independent and / or partially synchronous adjustment of the respective associated head rail elements 4.2.1 to 4.2.3 enables a large range of height adjustment in a simple manner H and / or a large inclination adjustment range for the inclination N the seat support structure 3 .

1 shows the seat support structure 1 in the seated driving position P1 , in which the seat support structure 3 at an angle α for example about 15 ° (also called cushion angle) to the rail arrangement 4th is placed and the seat back support structure 2 to the vertical axis Z at an angle δ of, for example, about 25 ° (also called torso / backrest angle).

2 shows the seat support structure 1 in the comfort position P2 , in which the seat support structure 3 for example at an angle α for example about 20 ° (also called cushion angle) to the rail arrangement 4th is placed and the seat back support structure 2 to the vertical axis Z at an angle δ for example about 45 ° (also called torso / backrest angle).

For this purpose, for example, the front upper rail element 4.2.1 independent of the other and in particular at this moment stationary upper rail elements 4.2.2 and 4.2.3 and relative to these and the lower rail 4.1 according to arrow aPF1 adjusted so that the seat support structure 3 , especially the base support element 3.1 and with this the upholstery support element 3.2 , according to arrow PF2 more upwards at the front and more downwards at the back and the seat back support structure 2 according to arrow PF3 more to the rear due to the articulation of the front upper rail element 4.2.1 on the middle articulated arm 5 in the pivot D6 and the rotation of the articulated arms 5 and 5.3 around their pivot points D2 to D5 have inclined.

In addition, for example, the middle upper rail element 4.2.2 independent of the other and in particular at this moment stationary upper rail elements 4.2.1 and 4.2.3 and relative to these and the lower rail 4.1 be adjusted according to arrow PF1, whereby the seat surface support structure 3 , in particular the upholstery support element 3.2 , according to arrow PF2 more upwards at the front and more downwards at the back and the seat back support structure 2 according to arrow PF3 more to the rear due to the coupling of movements of the multi-joint arrangements 5 and 50 have inclined.

3 shows the seat support structure schematically in a side view 1 in a so-called seat zero position P3 (also called Zero Gravity Position), in which the seat support structure 3 for example at an angle α of, for example, about 22 ° (also called cushion angle) to the rail arrangement 4th is placed and the seat back support structure 2 to the vertical axis Z at an angle δ of, for example, approximately 60 ° (also called torso / backrest angle).

The middle upper rail element is used for this 4.2.2 independent of the other, in particular at this moment stationary, upper rail elements 4.2.1 and 4.2.3 and relative to these and the lower rail 4.1 according to arrow PF10 even further forward in the direction of the front head rail element 4.2.1 adjusted so that the seat support structure 3 , especially the base support element 3.1 and the cushion support element 3.2 , according to arrow PF20 more upwards at the front and more downwards at the rear as well as the seat back support structure 2 according to arrow PF30 more to the rear due to the corresponding rotation of the articulated arms 5 to 5.3 around their pivot points D1 to D6 and the movement coupling of the multi-joint arrangements 5 and 50 have inclined.

4th shows the seat support structure schematically in a side view 1 in the sitting bed position P4 , in which the seat support structure 3 for example at an angle α for example about 0 ° (also called cushion angle) to the rail arrangement 4th is placed and the seat back support structure 2 to the vertical axis Z at an angle δ of, for example, about 90 ° (also called torso / backrest angle).

The middle upper rail element is used for this 4.2.2 independent of the other and in particular at this moment stationary upper rail elements 4.2.1 and 4.2.3 and relative to these and the lower rail 4.1 according to arrow PF40 in the opposite direction and thus backwards towards the rear upper rail element 4.2.3 and the rear head rail member 4.2.3 away from the middle head rail element 4.2.2 also backwards according to the arrow PF50 adjusted so that the seat support structure 3 according to arrow PF60 back down and the seat back support structure 2 according to arrow PF70 even further to the rear due to the movement coupling of the multi-joint arrangements 5 and 50 have inclined. The middle upper rail element 4.2.2 and the rear head rail member 4.2.3 moved backwards synchronously with one another, in particular shifted.

5 shows the seat support structure schematically in a side view 1 in an inclined sitting position P5 , in which the seat support structure 3 for example at an angle α for example about 2 ° (also called cushion angle) to the rail arrangement 4th is placed and the seat back support structure 2 to the vertical axis Z at an angle δ for example about 88 ° (also called torso / backrest angle).

The rear upper rail element is used for this 4.2.3 independent of the other front head rail elements 4.2.1 and 4.2.2 and relative to these and the lower rail 4.1 according to arrow PF80 forward towards the middle head rail element 4.2.2 adjusted towards this, so that the seat support structure 3 especially the rear end HE of the upholstery support element 3.2 , according to arrow PF90 slightly upwards by 2 ° and the seat back support structure 2 according to arrow PF100 again forward by 2 ° due to the movement coupling of the multi-joint arrangements 5 and 50 have inclined.

The multi-joint arrangement 50 includes the movement coupling of the seat support structure 3 , in particular the cushion support element 3.2 , and seat back support structure 2 several articulated arms coupled with one another 50.1 to 50.3 . There is an articulated arm 50 on the one hand on the cushion carrier element 3.2 and on the other hand on another articulated arm 50 rotatably hinged, which in turn is both on the cushion support element 3.2 as well as on the seat back support structure 2 is rotatably hinged. Another articulated arm 50 is on the seat back support structure 2 and on the articulated arm 5 pivoted.

The multi-joint arrangement 50 thus couples the seat support structure 3 and the seat back support structure 2 together. The multi-joint arrangement 50 can be independent of the multi-joint arrangement 5 , which between the seat support structure 1 and the rail arrangement 4th is arranged and these are coupled to one another in motion, controlled and an adjustment only of the seat support structure 1 , especially the seat support structure 3 and the seat back support structure 2 relative to each other.

6 shows schematically in a side view an example of a movement sequence (also called floating) of the seat support structure 1 between the sitting driving position P1 and the seating comfort position P2 by adjusting the middle upper rail element 4.2.2 according to arrow PF110 and PF120 .

7th shows schematically in perspective another aspect of the invention with a rail arrangement 40 with two pairs of rails PA1 , PA2 from one bottom rail each 4.1 and a split head rail 4.2 with the head rail elements 4.2.1 to 4.2.3 . The pairs of rails PA1 and PA2 from lower rail 4.1 and split head rail 4.2 are arranged at a distance from one another. For the variable adjustment of the separate top rail elements 4.2.1 until 4.2.3 of the pairs of rails PA1 and PA2 are several actuators 8th intended. Here are the front upper rail elements 4.2.1 both pairs of rails PA1 and PA2 by means of an associated actuator 8th connected with each other. The middle head rail elements 4.2.2 both pairs of rails PA1 and PA2 are by means of another actuator 8th connected to each other and the rear head rail elements 4.2.3 both pairs of rails PA1 and PA2 are also by means of another actuator 8th connected with each other.

The actuator 8th is each as a motor unit 7th formed, which in an associated holding element 9 is held.

For example is the motor unit 7th designed as a linear drive, for example in the form of a linear spindle drive. In particular, the motor unit 7th an electric rotary motor, its output shaft 7.1 on the output side via a spindle nut 7.2 with a spindle 7.3 is coupled, which is the associated head rail element 4.2.1 to 4.2.3 along the bottom rail 4.1 shifts. Alternatively, instead of a rail spindle, a slide bearing or a roller bearing or another suitable drive technology can be used to move the upper rail elements 4.2.1 to 4.2.3 can be used.

The motor units 7th are signaling with a control unit 10 coupled which the motor units 7th controls in such a way that individual, several and / or all of the upper rail elements 4.2.1 to 4.2.3 can be adjusted, in particular displaced, independently of one another and / or at least partially synchronously with one another.

Using the associated motor unit 7th are for example those with this motor unit 7th motion-coupled and opposing head rail elements 4.2.1 , 4.2.2 or 4.2.3 of the two opposite pairs of rails PA1 , PA2 synchronously in the longitudinal direction L. moved together. In addition, in relation to the respective pair of rails PA1 and PA2 all head rail elements 4.2.1 to 4.2.3 are adjusted synchronously with each other to allow for a longitudinal adjustment of the seat, in particular the seat support structure 1 , longitudinal L. to enable.

The rail arrangement 40 is used at the in 1 to 6 seat support structure described 1 to adjust these in different positions P . The rail arrangement 40 but can also be used for other applications.

The following is the variable adjustment of the upper rail elements 4.2.1 to 4.2.3 using one of the pairs of rails PA1 in the 8A to 8C described, with the respective associated motor unit 7th the opposing front headrail elements 4.2.1 both pairs of rails PA1 and PA2 , the opposing middle headrail elements 4.2.2 both pairs of rails PA1 and PA2 and the opposing rear headrail members 4.2.3 both pairs of rails PA1 and PA2 controls and moves synchronously.

8A shows a longitudinal adjustment of the seat in the longitudinal direction L. by means of simultaneous synchronous movement according to the arrow PF130 of all head rail elements 4.2.1 to 4.2.3 due to simultaneous synchronous activation of all associated motor units 7th .

According to 8B is a first, especially the front, upper rail element 4.2.1 relative to a second, in particular the middle and stationary, upper rail element 4.2.2 and a third, in particular the rear and stationary upper rail element 4.2.3 longitudinal L. according to arrow PF140 movable to adjust the height H of the seat, in particular the seat support structure 3 to allow up or down. The front articulated arm moves, in particular pivots 5 , the one on the middle articulated arm 5 is hinged in the middle, both the middle articulated arm 5 as well as the rear articulated arm 5 synchronously backwards, so that the seat support structure 3 in height H upwards and lengthways L. is moved to the rear, as the dashed illustration shows.

Here are the middle articulated arm 5 and the rear articulated arm 5 in each case on the stationary middle or rear upper rail elements 4.2.2 or. 4.2.3 rotatable around the pivot points D2 or. D3 and on the seat support structure 3 rotatable around the pivot points D4 or. D5 hinged.

According to 8C can alternatively or additionally use the middle upper rail element 4.2.2 relative to the front head rail member 4.2.1 and the rear head rail member 4.2.3 according to arrow PF150 be movable to a front Tilt N of the seat, in particular the seat support structure 3 to allow up or down.

As a result of the longitudinal movement of the middle head rail element 4.2.2 moves, in particular rotates, the middle articulated arm 5 attached to the seat support structure 3 and on the middle head rail element 4.2.2 is hinged to the pivot point D6 and swivels the seat support structure 3 front up and back down, as shown by the dashed line. The front head rail element 4.2.1 and the rear head rail member 4.2.3 are kept stationary.

Here are the front articulated arm 5 and the rear articulated arm 5 each on the fixed front head rail element 4.2.1 or on the fixed rear head rail element 4.2.3 rotatable around the pivot points D1 or. D3 and on the middle articulated arm 5 or on the seat support structure 3 rotatable around the pivot points D6 or. D5 hinged.

According to 8D can alternatively or additionally use the rear upper rail element 4.2.3 relative to the front head rail member 4.2.1 and the middle head rail element 4.2.2 be movable according to arrow PF160 to a rear inclination N of the seat, in particular the seat support structure 3 , in particular to allow up or down.

As a result of the longitudinal movement of the rear head rail element 4.2.3 moves, in particular rotates, the rear articulated arm 5 attached to the seat support structure 3 and on the rear head rail member 4.2.3 in the pivot points D5 or. D3 is rotatably hinged, and pivots the seat support structure 3 back up or down, as shown by the dashed line. The front head rail element 4.2.1 and the middle head rail element 4.2.2 are kept stationary.

Here are the front articulated arm 5 and the middle articulated arm 5 each on the fixed front head rail element 4.2.1 or on the stationary middle upper rail element 4.2.2 rotatable around the pivot points D1 or. D2 and on the middle articulated arm 5 or on the seat support structure 3 rotatable around the pivot points D6 or. D5 hinged.

There are further variable adjustments of the upper rail elements 4.2.1 to 4.2.3 separately and independently of each other or synchronously with each other for the variable adjustment of one of the seat positions P , P1 to P5 possible. For example, the middle head rail element 4.2.2 and the rear head rail member 4.2.3 synchronously with each other and relative to the fixed front head rail element 4.2.1 adjusted.

With such a variably adjustable seat support structure 1 is the vehicle seat between different seating positions P such as a seated driving position P1 , a seating comfort position P2 , a seat zero position P3 , a sitting bed position P4 and a reclined seated position P5 , easily and quickly adjustable and can be in one of these positions according to the user's wishes P or any position in between P can be set.

List of reference symbols

1

Seat support structure

2

Seat back support structure

3

Seat support structure

3.1

Base support element

3.2

Upholstery support element

4.40

Rail arrangement

4.1

Lower rail

4.2

Head rail

4.2.1 to 4.2.3

Head rail elements

5.50

Multi-joint arrangement

5.1 to 5.4

Articulated arms

50.1 to 50.3

Articulated arms

6th

Seat adjustment assembly

7th

Motor unit

7.1

Output shaft

7.2

Spindle nut

7.3

spindle

8th

Actuator

9

Retaining element

10

Control unit

D1 to D6

pivot point

G1 to G6

Pivot points

H

height

HE

rear end

L.

Longitudinal direction

N

Tilt

PA1, PA2

Pair of rails

P

Sitting position

P1

Sitting driving position

P2

Sitting comfort position

P3

Seat zero position

P4

Sitting bed position

P5

inclined sitting position

aPF1, PF1 to PF160

Arrows

VE

front end

X

Longitudinal axis

Y

Transverse axis

Z

Vertical axis

α, β, γ, δ

angle

Claims (10)

Seat, in particular a vehicle seat, with a seat adjustment arrangement (6) for height and / or inclination adjustment of the seat and a rail arrangement (4) for longitudinal adjustment of the seat, the seat adjustment arrangement (6) comprising a multi-joint arrangement (5) which is attached to the rail arrangement (4 ) is articulated, wherein the rail arrangement (4) comprises a plurality of movable upper rail elements (4.2.1 to 4.2.3) and wherein the multi-joint arrangement (5) is articulated several times to the upper rail elements (4.2.1 to 4.2.3). Seat with a seat support structure (1) which comprises at least one seat back support structure (2) and a seat support structure (3), the seat support structure (3) by means of a multi-joint arrangement (5) with a plurality of articulated arms (5.1 to 5.3) on a rail arrangement (4 ), which has a lower rail (4.1) and an upper rail (4.2) that can be moved to the lower rail (4.1), and wherein the upper rail (4.2) is divided into at least two or more movable upper rail elements (4.2.1 to 4.2.3) , to which articulated arms (5.1 to 5.3) of the multi-joint arrangement (5) are articulated. Seat after Claim 1 or 2 , whereby a respective articulated arm (5.1 to 5.3) on the one hand is hinged on the rail side to one of the movable upper rail elements (4.2.1 to 4.2.3) about a pivot point (D1 to D3) and on the other hand is hinged to the seat support structure (3) on the seat side. Seat according to one of the preceding claims, wherein the upper rail elements (4.2.1 to 4.2.3) can be moved independently of and / or one another and / or can be moved synchronously with one another. Seat according to one of the preceding claims, wherein the upper rail elements (4.2.1 to 4.2.3) can be moved independently of and / or to one another and / or can be moved partially synchronously with one another in such a way that the distance between the pivot points (D1 to D3) of the articulated arms ( 5.1 to 5.3) can be changed to one another. Seat according to one of the preceding claims, wherein the upper rail elements (4.2.1 to 4.2.3) can be moved independently of and / or to one another or partially synchronously with one another in such a way that the pivot points (D1 to D3) of the articulated arms (5.1 to 5.3) are independent are displaceable from one another or are partially synchronously displaceable. Seat according to one of the preceding claims, wherein the upper rail elements (4.2.1 to 4.2.3) can be moved independently of and / or to one another or synchronously with one another in such a way that the angles of rotation of the hinged to the upper rail elements (4.2.1 to 4.2.3) Articulated arms (5.1 to 5.3) can be changed or maintained independently of one another. Seat according to one of the preceding claims, wherein the articulated arms (5.1 to 5.3) of the multi-joint arrangement (5) are set up and articulated at the ends in such a way and are adjustable independently of one another that the seat surface support structure (3) relative to the rail arrangement (4), in particular to the upper rail elements (4.2.1 to 4.2.3) and the lower rail (4.1) is adjustable in height (H) and / or inclination (N). Seat according to one of the preceding claims, wherein a first upper rail element (4.2.1), a second upper rail element (4.2.2 and a third upper rail element (4.2.3) are provided. Seat according to one of the preceding claims, wherein the first upper rail element (4.2.1), the second upper rail element (4.2.2) and the third upper rail element (4.2.3) can be moved synchronously with one another or the first upper rail element (4.2.1) relative to the second top rail element (4.2.2) and the third top rail element (4.2.3) is movable or the third top rail element (4.2.3) is movable relative to the first top rail element (4.2.1) and the second top rail element (4.2.2) or that second upper rail element (4.2.2) is movable relative to the first upper rail element (4.2.1) and the third upper rail element (4.2.3).

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