DE10120167C1 - Adjustable vehicle seat - Google Patents

Abstract

Adjustable vehicle seat with a seat cushion, which has a first seat cushion area (6 ') which is integrated into a second seat cushion area (5) surrounding the first seat cushion area (6'). The height and / or orientation of the first seat cushion area (6 ') can be adjusted relative to the second seat cushion area (5), in particular rotatably. Alternatively or additionally, the second seat cushion area (5) can be designed to be lowerable and / or foldable.

Description

The invention relates to an adjustable driving stuff seat with the features of the preamble of the patent saying 1.

To optimize the seating comfort of vehicle occupants vehicle seats have a variety of adjustment options with which the vehicle seat optimally adapts to the anatomy adapted to the vehicle occupant and in particular the positi turned on by a driver of a motor vehicle can be put that an ergonomically optimal sitting position tion is guaranteed. The different settings possible capabilities such as longitudinal seat adjustment, seat height adjustment,  Adjustment of seat cushion height and inclination as well as backrest adjustment Prevent position and headrest height adjustment or reduce the risk of tension or cramping the vehicle occupants after a long journey and wear thus also increasing security.

DE 198 11 958 A1 describes an adjustable vehicle seat known with a movable seat cushion that at least has two areas, of which a first area is one Buttocks and a second area a thigh pad educated. The thigh support is parallel to the Seat longitudinally aligned in the direction of the seat longitudinal adjustment axis rotatably mounted, so that even with differ angle of attack the thighs of the vehicle occupant always have contact with the seat cushion, that is, a possible The fullest support of the thighs on the seat cushion and thus guarantee the greatest possible seating comfort is steady.

In addition to maximum seating comfort for vehicle occupants by adapting the different parts of the seat Vehicle seat to the anatomy of the vehicle occupants and the Driving comfort through the vehicle settings is also the Ease of use and convenience of importance, to which u. a. Comfortable getting in and out of the vehicle Heard leaving the vehicle. Especially for driving Witness leader is however because of the position of the steering wheel Comfortable getting in and out is often not an option Adjustment of the vehicle seat in the longitudinal direction up to one rear stop when leaving the vehicle only poses is a makeshift measure to improve comfort.  

An increase in user comfort with a vehicle seat that can be rotated around the vertical axis of the seat certain structural requirements of the vehicle such as the necessary freedom especially in the area of the vehicle booth dens or the platform of the vehicle, the middle doing nels and the B-pillar. Often, it also has an aggravating effect the compact assembly of the vehicle seat, in particular the area of the seat bolsters, the lower seat pan and the long rails of the seat adjustment and the raised side spaces of the vehicle floor when there is personnel dare. Due to the connection of adjustable vehicle seats to the vehicle platform and the lack of free space fully rotating vehicle seats are used to rotate the seat on an arrangement in vans and similar vehicles level platform limited where it can rotate without collision can be installed.

The object of the present invention is to improve the usage com away by comfortably getting into a vehicle and Get out when leaving the vehicle with one drive Tool seat with multi-way adjustment even with such vehicles to increase conditions where due to the connection of the driving seat to the vehicle platform and due to missing There is no room for turning the entire vehicle seat is possible.

This object is achieved by the features of Claim 1 solved.  

The solution according to the invention leads to a clear one Increase in user convenience by ensuring a easy getting on and off even with such vehicles, where there is no free space due to the vehicle construction for rotating an adjustable vehicle seat stands.

The object of the invention is also on vehicle seats compact equipment, especially in the area of the seat wall gene, the seat pan and in the case of long rails to the longitudinal seat position as well as raised uprights in passenger cars applicable. The first, either variable or rotatable or combined adjustable and rotatable The seat cushion area is in the seat cushion of the driver Integrated seat that no impairment of comfort are given and therefore the increase in user comfort is not bought with poorer seating comfort. Also all seat adjustment options such as seat length remain adjustment, seat height adjustment, adjustment of the seat skis inclination and seat cushion depth, possibly a thigh support ge in the area of the seat base and all Leh adjustment and adjustment of the headrests maintain height and slope.

The solution according to the invention has various configurations conditions in addition to the possibilities of sole height adjustment position, the rotation and the combined height adjustment and rotation of the first seat cushion area, if necessary in connection with a the first seat cushion area extending, lowering or folding seat cushion area from passive adjustment to fully automatic Adjustment when opening the door and the integration of additional ones  Comfort measures such as ventilation and heating as well include the inclusion of air cushions. Here is ge ensures that the seat rails of the seat adjustment not including the seat base and seat back be moved so that no constructive changes on Multi-way adjustment system of the vehicle seat required are.

In a first embodiment, the first is in the second, immovable seat cushion area integrated seat cushion area only adjustable in height and can active by means of an electric, hydraulic or pneuma table drive or passively by means of a suitable, manually operated adjustment mechanism compared to him around indicating non-adjustable second seat cushion area raised and lowered so that, for example, and get off the adjustable seat cushion area on the Raised the height of the side bolsters and thus the loading sen the vehicle seat or take a seat on the Vehicle seat is made easier.

In a second embodiment with a rotatable first seat cushion area can be in a "simple version" of inventive solution of the rotatable first Sitzkis passively adjustable senbereich so that a vehicle occupant by support on the steering wheel as a result of easily rotatable and previously unlocked seat cushion area Get in and out more comfortably without motor support can.  

In a fully automatic version of the second version form of a rotatable first seat cushion area for example when opening the door, the rotating first seat cushion area raised by means of a lifting device and by a predeterminable angle of rotation around the seat vertical axis in Direction of the exit opening of the vehicle rotated.

In a third embodiment, the first seat cushion leg richly rotatable only, while the second Sitzkis is lowerable or foldable and thus the same Effect in terms of facilitating boarding and alighting unfolds like an additional height-adjustable first Seat cushion area, but without a total Raising the vehicle occupant does what is limited Clearance can be an advantage.

In detail, the solution according to the invention allows the following variants, developments and refinements:

• - With a height-adjustable first seat cushion area passive (manual) or active (motorized under supported) seat cushion adjustment;
• - With a rotatable first seat cushion area passive (manual) or active (motorized under supported) seat cushion adjustment;
• - A height-adjustable and rotatable first Seat cushion area with passive (manual) or active (motor-assisted) seat cushion adjuster development;  
• - A rotatable first seat cushion area in Connection with a lowerable, foldable or the same second seat cushion area with passive (manual) or active (motor-assisted) Seat cushion adjustment;
• - A height-adjustable and rotatable first Seat cushion area in connection with a lowerable ren, foldable or the like second seat cushion area with passive (manual) or active (moto rically supported) seat cushion adjustment.

With motor-driven first or second seat cushions parts of the seat adjustment technology of the adj baren vehicle seat the lifting, lowering or folding and Take over the rotation adjustment of the seat cushion area (s), for example, the drive motor for adjustment the seat cushion inclination as a drive for the lifting device and the adjustment mechanism of the rotatable first seat cushion area or the lowering or folding device of the serve second seat cushion area.

Alternatively, a disc-shaped flat motor can be integral Be part of the seat pan and the lifting or lifting rotation functions of the rotating seat cushion empire or the lowerable or foldable second seat ski take over the area. Existing Sitzver adjustment systems such as the seat longitudinal adjustment with the stroke and stroke adjustment of the rotatable stored first or lowerable or foldable two th seat cushion area are synergistically coupled.  

Another measure is to lift the rotatable first seat cushion area the same lower the seat height adjustment in time to the vehicle ginsassen the required headroom when getting out from the vehicle or getting into the vehicle Afford.

In the embodiment of a rotatable first seat ski The range of rotation is the axis of rotation of the rotating seat cushion center area to the rotatable first seat cushion area arranged, while in the embodiment of a combines rotating and height-adjustable first Seat cushion area the axis of rotation of the first seat cushion leg Reichs either centrically or eccentrically to the first seat cushion area can be arranged. The eccentric The arrangement of the axis of rotation offers a particularly high one Ease of use because the first seat cushion area, for example can pivot over the side bolsters and making it particularly easy to get on and off light.

The rotatable first seat cushion area can be selected in discrete angular positions, preferably in one with the vehicle longitudinal axis aligned angular position and one Engage the angular position perpendicular to the vehicle's longitudinal axis and / or lockable or infinitely variable in any win be lockable.

The active adjustment mechanism preferably consists of a disc-shaped integrated in the seat pan Flat motor that is particularly space-saving.  

For economic reasons or to save space the adjustment mechanism for the seat cushion areas mecha nically, electrically, hydraulically or pneumatically with mind at least one further adjustment device of the vehicle seat be connected so that via a switching mechanism either the seat cushion areas or the further adjustment device of the vehicle seat can be activated.

To prevent the seat cushion area or the adjustment area mechanism can be connected to a control device which a rotation or height adjustment of the first seat cushion leg rich or lowering or folding the second seat ski only when the vehicle door is open or triggers.

This control device can be a Höhenver Actuate the control device of the vehicle seat when the Lifting device the first adjustable and rotatable Raises or lowers the seat cushion area so that a predetermined one level or minimal headroom of the vehicle occupant is accomplished.

To increase comfort, the seat cushion areas, esp in particular the first seat cushion area with a ventilation and / or heating device can be connected or it can Air cushions can be integrated into the seat cushion areas.

For easier cleaning of the seat cushion and all parts the seat cushion areas especially in the transition area both seat cushion areas is the first seat cushion area so far compared to the immovable seat cushion area surrounding it  can be raised and / or the second seat cushion area lowerable compared to the first seat cushion area that the first seat cushion area and that on the first seat cushion area richly adjacent area of the second seat cushion area of the seat cushion are accessible from all sides.

Based on an exemplary embodiment shown in the drawing The idea on which the invention is based is intended to play are explained in more detail. Show it:

Figures 1 and 2 perspective views of an adjustable vehicle seat with a height-adjustable first Sitzkissenbe rich in the lowered and raised position.

Fig. 3 to 5 are perspective views of an adjustable vehicle seat with a height-adjustable and drehbeweglichem first seat cushion portion in difference handy lifting positions;

Fig. 6 is a schematic-perspective Dar position of an adjustable vehicle seat with centrally and eccentrically rotatably mounted first seat cushion area and

Fig. 7 shows a section through the Sitzunterge stell an adjustable vehicle seat with a combined height-adjustable and rotatable first seat cushion area.

In Figs. 1 to 5, a vehicle seat 1 comprising a seat base frame 2, an articulated on the seat base 2 and reclining backrest 3 and connected to the backrest 3, the headrest 4 is a perspective view illustrates Darge that with respect to the upper edge of the backrest 3 in the longitudinal direction and its inclination is adjustable. The seat base frame 2 is connected to a seat pan or a seat cushion support, which receives a movable first seat cushion region 6 , 6 'and an immovable second seat cushion region 5 with in this embodiment the side bolsters raised.

The vehicle seat 1 shown in FIGS . 1 to 5 is adjustable in the longitudinal direction of the seat, the lower seat part 2 can be adjusted both in height and in the seat cushion inclination and, if appropriate, in the seat cushion depth and with respect to the thigh support.

The movable first seat cushion area 6 , 6 'is fully dig in the immovable second seat cushion area 5 integrated, without disturbing edges or transitions impair the comfort of the vehicle occupant on the seat cushion composed of the seat cushion areas 5 , 6 , 6 '.

The vehicle seat 1 shown in Figs. 1 and 2 has an exclusively vertically adjustable and rectangular in this embodiment and the seating surface adapted first seat cushion portion 6, which is connected to a lifting device that the height-adjustable first seat cushion portion 6 mechanically, electrically, hydrau cally or pneumatically adjusted in height, ie with respect to the top of the second seat cushion area 5 surrounding the first seat cushion area 6 . Fig. 1 shows the height-adjustable, movable first seat cushion area 6 in a lowered. Position that corresponds to the normal seating position of the vehicle occupant, for example, while driving.

Fig. 2 shows the height-adjustable first Sitzkissenbe range 6 in the raised position, in which a comfortable Bele conditions and leaving the vehicle seat is possible because the angular position of the legs of the vehicle occupant facilitate getting in and out and, for example, increased seat cheeks can be overcome more easily, so that the vehicle occupant only has to turn on the raised seat cushion area to leave or enter the vehicle.

Alternatively or additionally, the side cheeks and possibly the front thigh support of the second seat cushion area 5 can be lowered or folded down.

In the embodiment of FIGS. 3 to 5, the first seat cushion area 6 'can be rotated and adjusted in height, the first seat cushion area 6 ' being plate-shaped with a circular surface and embedded in the center of the second seat cushion area 5 . The first Sitzkis senbereich 6 'is connected to a lifting device which adjusts the first seat cushion region 6 ' mechanically, electrically, hydraulically or pneumatically in height, ie with respect to the top of the second seat cushion region 5 surrounding the first seat cushion region 6 '.

Fig. 3 shows the height-adjustable and rotatable first seat cushion area 6 'in the lowered position, which corresponds to the normal sitting position of the vehicle occupant, for example, while driving. Fig. 4 shows the height-adjustable and rotatable first seat cushion area 6 'in the raised position, in which a given swivel movement is automatic, that is to say motor-assisted, or without motor-assisted support, for example by the vehicle occupant being supported on the steering wheel of a motor vehicle after previous unlocking height-adjustable and rotatable first seat cushion area 6 'performs a rotary movement in the direction of the exit opening and thus can get out or get into the vehicle after it has taken a seat on the first seat cushion area 6 ' and has carried out a rotary movement in the direction of travel.

As an alternative to a passively rotatable first seat cushion area 6 ', an electromotively driven, height-adjustable and rotatable first seat cushion area 6 ' can be provided, in which, for example, a disc-shaped flat motor is an integral part of the seat pan and carries out the lifting or lifting rotary movement.

In this embodiment, too, a combination with a lowerable or foldable second seat cushion area 5 is possible, a combination of a rotatable first seat cushion area 6 ′ and a lowerable and / or foldable second seat cushion area 5 being particularly advantageous.

In these configurations, there is a further comfort step automatic entry and exit is possible with which the Boarding and alighting of the vehicle occupant without their own Help is possible and the boarding and alighting process is additional is made easier. For this purpose, the existing seat adjustment systems with the stroke and lift adjustment coupled and necessary for boarding and alighting Handling such as opening the door and removing the ignition key included.

For example, to leave the vehicle, switching off the ignition, locking the steering wheel lock or removing the ignition key and opening the vehicle door to release unhindered entry and exit, the seat longitudinal adjustment can first be actuated and the vehicle seat moved to the rearmost position and then the lifting device rotatable first Sitzkissenbe überfüh ren rich 6 'in the raised position of FIG. 4 so that subsequently the active Verstellmechanis mus a rotary movement through about 90 ° performs increased opening in the direction of the off and thus easily designed to phase process for the vehicle occupant.

When lifting the height-adjustable and rotatable first seat cushion area 6 'by means of the lifting device, the seat height adjustment for the vehicle seat 1 is activated at the same time and the seat base frame 2 is moved towards the vehicle floor in order to ensure sufficient headroom for the vehicle occupants when exiting, that is to say Raising the rotating seat cushion area 6 to compensate. This additional adjustment of the seat base frame 2 can of course be omitted if a rotatable first seat cushion area 6 'is combined with a lowerable or foldable second seat cushion area 5 .

Fig. 5 shows the vehicle seat 1 with a relative to the position of the height-adjustable and rotatable Sitzkis sen range 6 'according to FIG. 4 further raised position in which, for example, a convenient cleaning of the second seat cushion area 5 , in the area surrounding the first seat cushion area 6 ' and the Guide surfaces of the height-adjustable and rotatable first seat cushion area 6 'is possible. This position can also serve as a position for activating the active adjustment mechanism or for releasing the passive adjustment mechanism for carrying out a rotary movement of the height-adjustable and rotationally movable first seat cushion region 6 '. Since This position allows the first cushion portion 6 'the lower edge of the seat side of the fixed seat cushion portion 5 projects beyond, instead of a centrical mounting of the first Sitzkis can senbereichs 6' an eccentric mounting also be provided so that the first seat cushion portion 6 'on the side bolsters of the second seat cushion area 5 can be pivoted ver and thus offers an additional entry and exit aid.

Fig. 6 shows schematically the various storage possibilities of a rotatable first seat cushion area 6 'or 6 ", which can be pivoted about a central axis of rotation 7 ' in relation to the second seat cushion area 5 in a centrally mounted, rotatable seat cushion area 6 ', while an eccentrically mounted, rotatable first seat cushion area 6 "about an axis of rotation 7 " is pivotable.

In the various embodiments, the rotary or lifting rotary function can also be made dependent on the actuation of an unlocking device 10 , so that, for example, in relation to the exemplary embodiment illustrated above, the triggering of the rotary or lifting rotary function is dependent not only on the door opening and actuation of the ignition key , but also or instead of the actuation of the unlocking 10 , which can be arranged according to FIG. 6 on the front edge of the seat, but also in the region of the dashboard, the tunnel or the steering wheel.

Fig. 7 shows a section through a seat frame with a second fixed seat cushion portion 5 and a rotationally movable first seat cushion portion 6 'which are received by a seat pan 20. The rotatable first seat cushion area 6 'is connected via a centrally arranged axis of rotation 7 ' to the seat pan 20 and can be locked by means of locking elements 91 , 92 in predetermined positions with the seat pan 20 . A flat motor 8 causes both a lifting movement of the rotatable first Sitzkissenbe area 6 'and its rotation in predetermined steps or continuously over a predetermined range.

The lifting movement can be carried out, for example, via a worm spin del gear, but instead of a flat motor 8 , a hydraulic or pneumatic drive device can also be provided.

In order to exclude unwanted rotary movements of the rotatable first seat cushion area 6 'or a lowering or folding down of the second seat cushion area 5 , these can be locked in stages or continuously, so that, for example, in a driving position it is ensured that the rotatable first seat cushion area 6 ' does not involve any rotary movements and the like second seat cushion area 5 does not perform pivoting movements that can lead to irritation in the driver of a vehicle.

To further increase comfort, there is ventilation and Heating of the seat cushion areas as well as an additional one Arrangement of air cushions to increase the suspension com still possible.

The above described with reference to FIGS. 3 to 5 exemplary embodiment from the invention in a preferred embodiment. In addition, however, it can be technically meaningful and economically necessary to implement only individual functions, for example an isolated stroke movement of the first seat cushion area or a lowering or folding movement of the second seat cushion area, in order to facilitate entry and exit, particularly when the side bolsters are raised.

Alternatively, a passive passive rotary movement of the first seat cushion area possibly in connection with a lowerable or foldable second seat cushion area seen or - as in the embodiment described above example shown - a combined lifting and turning movement of the first seat cushion area can be realized.

Claims (21)

1. Adjustable vehicle seat, with a seat cushion having at least two regions, at least one first seat cushion region being essentially surrounded by at least one second seat cushion region, which in particular comprises seat cheeks, characterized in that the first seat cushion region ( 6 , 6 ', 6 ") is adjustable in height and / or orientation relative to the second seat cushion area ( 5 ). 2. Adjustable vehicle seat according to claim 1, characterized in that the first seat cushion area ( 6 , 6 ', 6 ") in the second seat cushion area ( 5 ) is inte grated. 3. Adjustable vehicle seat according to claim 1 or 2, characterized in that the first Sitzkissenbe rich ( 6 , 6 ', 6 ") about an axis of rotation ( 7 , 7 ', 7 ") perpendicular to the surface of the seat cushion and / or lower right to a vehicle floor ( 1 ) receiving vehicle floor runs, is rotatably mounted. 4. Adjustable vehicle seat according to at least one of the preceding claims, characterized in that at least part of the second seat cushion region ( 5 ) is adjustable in height and / or pivotable relative to the first seat cushion region ( 6 , 6 ', 6 "). 5. Adjustable vehicle seat according to at least one of the preceding claims, characterized in that the first seat cushion area ( 6 , 6 ', 6 ") with a and the first seat cushion area ( 6 , 6 ', 6 ") relative to the second seat cushion area ( 5 ) and lower the lifting device ( 8 ) is connected. 6. Adjustable vehicle seat according to claim 5, characterized in that the lifting device ( 8 ) adjusts the first seat cushion area ( 6 , 6 ', 6 ") mechanically, electrically, pneumatically or hydraulically. 7. Adjustable vehicle seat according to at least one of the preceding claims, characterized in that the axis of rotation ( 7 , 7 ') of the first seat cushion area ( 6 ') is arranged centrally to the first seat cushion area ( 6 '). 8. Adjustable vehicle seat "(6 of the first Sitzkissenbe Kingdom) is arranged eccentrically to the first seat cushion portion (6") according to at least one of the preceding claims 3 to 7, characterized in that the rotational axis (7) ". 9. Adjustable vehicle seat according to at least one of the preceding claims, characterized in that the first seat cushion area ( 6 ', 6 ") engages in discrete angle positions, preferably in an angular position aligned with the longitudinal axis of the vehicle and an angular position perpendicular to the longitudinal axis of the vehicle, and / or can be locked. 10. Adjustable vehicle seat according to at least one of the preceding claims 1 to 9, characterized in that the first seat cushion area ( 6 ', 6 ") can be locked in any angular position. 11. Adjustable vehicle seat according to at least one of the preceding claims, characterized in that the first seat cushion area ( 6 , 6 ', 6 ") rotatably mounted and that the side bolsters of the second seat cushion area ( 5 ) can be lowered and / or folded down. 12. Adjustable vehicle seat according to at least one of the preceding claims 1 to 11, characterized in that the first and / or second seat cushion area ( 5 , 6 , 6 ', 6 ") is connected to a passive or active adjustment mechanism ( 8 ). 13. Adjustable vehicle seat according to claim 12, characterized in that the active or passive adjustment mechanism ( 8 ) in the seat cushion ( 5 , 6 , 6 ', 6 ") receiving seat pan ( 20 ) is integrated. 14. Adjustable vehicle seat according to claim 12 or 13, characterized in that the active adjustment mechanism consists of an integrated into the seat pan ben-shaped flat motor ( 8 ). 15. Adjustable vehicle seat according to at least one of the preceding claims 12 to 14, characterized in that the adjustment mechanism is mechanically, electrically, hydraulically or pneumatically connected to at least one further adjustment device of the vehicle seat ( 1 ). 16. Adjustable vehicle seat according to at least one of the preceding claims 12 to 15, characterized in that the adjustment mechanism is connected to a control device which rotates and / or adjusts the height of the first and / or second seat cushion region ( 6 , 6 ', 6 ", 5 ) only released and / or initiated when the vehicle door is open. 17. Adjustable vehicle seat according to claim 16, characterized in that the control device controls a height adjustment device of the vehicle seat ( 1 ) when the lifting device raises or lowers the first and / or second seat cushion area ( 6 , 6 ', 6 ", 5 ). 18. Adjustable vehicle seat according to at least one of the preceding claims 1 to 17, characterized in that the first seat cushion area ( 6 , 6 ', 6 ") is connected to a ventilation and / or heating device. 19. Adjustable vehicle seat according to at least one of the preceding claims 1 to 18, characterized in that air cushions are integrated in the first and / or second seat cushion area ( 6 , 6 ', 6 ", 5 ). 20. Adjustable vehicle seat according to at least one of the preceding claims 1 to 19, characterized in that the first seat cushion area ( 6 , 6 ', 6 ") can be raised as far as the surrounding second seat cushion area ( 5 ) that the first seat cushion area is rich ( 6 , 6 ', 6 ") and the area of the second seat cushion area ( 5 ) adjoining the first seat cushion area ( 6 , 6 ', 6 ") are accessible from all sides. 21. Adjustable vehicle seat according to at least one of the preceding claims 1 to 19, characterized in that the second seat cushion area ( 5 ) can be lowered as far as the first seat cushion area ( 6 , 6 ', 6 ") that the first seat cushion area ( 6 , 6 ', 6 ") and the area of the second seat cushion area ( 5 ) adjacent to the first seat cushion area ( 6 , 6 ', 6 ") are accessible from all sides.