DE102006059541A1 - Vehicle seat with pneumatic side bolsters - Google Patents

Abstract

The invention relates to a vehicle seat (10), in particular a motor vehicle seat, having a seat part cushion (12) and a backrest cushion (14), wherein the seat part cushion (12) and / or the backrest cushion (14) has side cheek pads (16) arranged laterally a pneumatic adjusting means in their shape and / or orientation are adjustable. It is provided that as adjustment means for generating a reversible and predeterminable relative movement of the side cheek pads (16) from a Nichtausstellposition (I) in a raised position (II) in each Seitenwangenpolster (16) at least one pneumatically acted upon air cushion (18) is arranged. wherein the respective side cheek cushion (16) in the lateral region along the length of the side cheek cushion (16) and / or at its side cheek cushion ends opposite the seat part cushion (12) and / or the backrest pad is separated and freely movable to a relative movement of the respective side cheek cushion (16 ) relative to the seat cushion part (12) or the backrest cushion (14) or to facilitate an increased relative movement of the respective side cheek cushion (16) and / or. which is designed in such a way that the outer exposed area (A <SUB> A </ SUB>) is stronger than the entire exposed area (A <SUB> G </ SUB>) in order to counteract a desired relative movement of the respective side cheek pads (16) the seat cushion (12) ...

Description

The The invention relates to a vehicle seat with pneumatic side cheek pads with the features of the preamble of claim 1 and / or 2.

In the DE 197 50 223 A1 a vehicle seat of this generic type is proposed, which has as adjustment in the side walls bubbles. By sensors, the lateral acceleration is measured or calculated and weighted with the instantaneous speed. From this size, a control signal for the pneumatic system of the bubbles is determined by an algorithm simulating the subjective feeling of the occupant. The control signal is superimposed by an additional signal, which is derived from a classification of the driving style of the driver.

From the US 4,796,955 a vehicle seat is known, in which also provided in the side cheeks bubbles as the first adjusting means. Below the bladder in each case further bubbles are arranged, which adjust as a second adjusting the tension in a membrane on which the seat cushion is mounted together with side cheeks.

The DE 102 14 383 B4 discloses a vehicle seat, in particular a motor vehicle seat, with a seat part as a first assembly and a backrest as a second assembly, wherein at least one of these assemblies laterally arranged side cheeks, which are adjustable by at least one adjustment in shape and / or orientation, wherein each side cheek also has at least one controllable, pneumatic loadable side cheek bubble.

These solutions However, have the disadvantage that the achievable pivotal movement of the Side bolster is relatively limited and the pneumatic loading the adjusting means, the bubbles or air bags are designed so must that an adjustment of the counterforce forming side bolsters to overcome the same can be. The forces to be applied are quite considerable and require a high volume of air and / or long positioning times.

Of the Invention is based on the object, a vehicle seat of the beginning of this type with regard to an efficiently designed and a to achieve achievable pivoting movement.

The Task becomes in connection with the characteristics of the generic term of the Patent claim 1 and / or 2 solved in that as adjusting for generating a reversible and predeterminable relative movement a side bolster from a Nichtausstellposition in one Release position in each side bolster at least one pneumatic can be acted upon air cushion [bubble], wherein the respective side cheek pads in the lateral area along the Length of the Sidewall pad and / or at its Seitenwangenpolsterenden separated and freely movable is formed to a relative movement the respective side cheek pad relative to the seat part cushion or the backrest cushion to facilitate or strengthened To allow relative movement of the respective Seitenwangenpolsters and / or that the air cushion disposed in each side bolster is formed such that the outer Ausstellbereich the Seitenwangenpolsters across from the entire Ausstellbereich the Seitenwangenpolsters stronger acted upon is to a desired one Relative movement of the respective side cheek pads over the Seat cushion or reinforce the backrest cushion.

To the invention according to claim 1 is the respective Seitenwangenpolster in the lateral area along the length the side cheek pad and / or at its Seitenwangenpolsterenden across from the seat part pad and / or the backrest pad separately and formed freely movable. The training is achieved by a basic body the side cheek pad, in particular a body forming the body Foam of the side cheek pad, separated from the front formed is or by the main body by at least one cut in the main body of the side cheek pad, in particular by at least one cut in the basic body forming Foam, later is disconnected.

A Previous relative movement of the side cheek pads from Nichtausstellposition in the Ausstellposition is by the at least one pneumatic acted upon air cushion and running according to claim 1 separate Training and the free mobility of the side cheek pad, in particular through the arranged cuts, through the concomitant reduction the one to be overcome personnel the side bolster at the same volume of air in a shorter period of application possible or is in a same admission period with a lower Air volume executable.

Further is due to the at least one pneumatically actuated air cushion at the same air volume and in the same period of application a reinforced one Relative movement of the side cheek cushion feasible.

According to claim 2, the air cushions are additional specially trained.

there are in a preferred embodiment of the invention, a single-chamber air cushion or two-chamber air cushion used.

One One-chamber air cushion is specially designed so that the outer Ausstellbereich the side cheek pad opposite formed voluminöser the entire Ausstellbereich the Seitenwangenpolsters is, so that the one-chamber air cushion in the outer Ausstellbereich more acted upon is thus a one-chamber air cushion with a voluminous training in the outer exhibition area the side cheek pad is inflatable.

One Two-chamber air cushion is arranged so that a first air cushion chamber essentially along the entire Ausstellbereiches and a second air cushion chamber substantially in the outer Ausstellbereich the respective Sidewall pad is arranged.

there Furthermore, the two-chamber airbags are in a preferred embodiment separated pneumatically acted upon or connected to each other and are thus jointly acted upon pneumatically.

The arrangement of such airbags results in the following advantages:
A previous relative movement of the side cheek pads from the Nichtausstellposition in the raised position leads by the arrangement of the trained according to claim 2 and the dependent claims air cushion by stronger loading of the air cushion in the outer region of the side cheek cushion that the forces to be overcome of the side cheek cushion at the same air volume in a shorter Period or during the same period of application with a lower air volume.

In addition is it is also possible for the same volume of air in a same period of application as before an intensified To cause relative movement of the side cheek pad.

The Combination, the trained according to claim 1 separation of the side cheek pad and the free mobility with respect to the seat cushion part and / or the backrest cushion and thus the reduction of the forces to be overcome Adjustment of the sidewall pad and simultaneous training an air cushion [single-chamber air cushion or two-chamber air cushion] in the outer area of the Side bolster and the associated possibility the stronger one Actuation of the air cushion in the outer region of the side cheek cushion according to claim 2 leads to a further preferred solution the task and a combination of the mentioned advantages.

Of the Inmate should not be pushed out of the seat by this arrangement. A reinforcement the application of an air cushion [single-chamber air cushion or Two-chamber air cushion] in the outer area the side cheek cushion of a seat part pad and / or a backrest cushion but should at least lead to a firmer hold.

The Seat cushion width and / or backrest cushion width should not be reduced by the adjustment of the seat side panels become.

Further preferred embodiments of the invention will become apparent from the others, in the subclaims mentioned features.

The The invention will be described below with reference to an exemplary embodiment based on drawings of a backrest cushion explained in more detail with pneumatically inflatable side cheeks. These explanations apply in the transferred Sense of course also for Side cheeks on a seat part of a vehicle seat. For the better understanding have been explained Cartesian directional arrows are shown, with the x-direction in Direction of travel, the y-direction is transverse to the direction of travel and the Z direction means the vertical direction in a motor vehicle.

The The invention will be explained in more detail with reference to the drawings. Show it:

1 a vehicle seat in a schematic representation of a front view;

2 the vehicle seat in a schematic representation in a side view;

3 a first perspective, enlarged view of a side bolster of a backrest;

4 a second perspective, enlarged view of a side bolster of a backrest;

5 the backrest in a front view with cut in side cheek pads;

6A the backrest according to 5 in a non-issue position;

7A the backrest according to 5 however, in an open position;

7B the backrest according to 7A in a plan view in the Ausstellposition and

8th a schematic side cheek pad showing an exemplary two-chamber air cushion.

1 shows first a vehicle seat 10 comprising a seat part and a backrest, wherein on the backrest a headrest 22 is arranged. The backrest is exemplary like the comfortable vehicle seat 10 Run a lordosis system 24 shown, wherein the backrest additionally on both sides side bolsters 16 having, in each case pneumatic air cushion chambers 18 are arranged.

2 shows the same vehicle seat 10 with like components and reference numerals in a side view, wherein it is shown that the seat part pad 12 similar to the backrest cushion 14 also side bolsters 16 may have or has, wherein the respectively arranged pneumatic air cushion chambers 18 are not shown.

For the arrangement of an air cushion 18 in the side bolster 16 a backrest cushion 14 will, like that 3 . 4 and 5 show the side bolsters 16 already separated and freely movable or, like the 3 to 5 clarify, cut open.

3 shows the guidance of sections S1 and S2, wherein a first section S1 in the respective side bolster 16 along the length of the side bolster 16 is guided and second cuts S2 are performed on the Seitenwangenpolsterenden substantially transverse to the first section S1. This results in how the 3 . 4 and 5 show, freely movable side bolsters 16 , which in this area opposite the backrest cushion 14 are separated and a relative movement of the respective Seitenwangenpolsters 16 allow, whereby the relative movement on the one hand is easier effected and on the other hand, an increased relative movement of the respective side cheek pad 16 is possible.

The cuts are in the 3 . 4 and 5 with dashed lines, wherein the combination of first and second cuts S1, S2 for the mobility of the side cheek cushion 16 is the most suitable. Theoretically, there is the possibility of facilitating the relative movement of the respective side bolster 16 only perform the first cut S1 or the second cuts S2.

The foam can also be provided from the outset in such a way that no cut or cuts S1, S2 are no longer necessary. In this case, the freely movable areas of the foam of the side cheek pad 16 opposite the backrest cushion 14 and / or the seat pad 12 already provided by separate production of the above-mentioned areas.

Such a design of a movable side bolster 16 already offers with conventional air cushions 18 or air bubbles that are pneumatically inflated and vented, the advantage; that by reducing the forces to be overcome sideways cushion 16 at the same volume of air in a shorter admission period or in a same admission period with a smaller air volume, a relative movement of the side cheek pad 16 as before from a Nichtausstellposition I in an open position II is reachable.

At the same air volume in an air cushion 18 or an air bubble or the like is in a same loading period, an increased relative movement of the side cheek pad 16 feasible, since the side bolster 16 is movable by the disposable cuts S1 and / or S2 below a reference, not shown, since the forces to be overcome are lower overall.

To this effect, however, especially with regard to the achievable relative movement of the side cheek pad 16 is to be strengthened, is contemplated in the invention, air cushion 18 to be used, which are formed so that the outer Ausstell-area A _A against the entire Ausstellbereich A _{G is} more acted upon to a desired relative movement of the respective side cheek pad 16 opposite the seat part cushion 12 or the backrest cushion 14 to reinforce.

A schematic side wall 16 is for clarity in 8th represented, wherein a section AA through the side cheek pads 16 an example of a two-chamber air cushion 18 shows.

The air cushion 18 has a first air cushion chamber 18A and a second air cushion chamber 18B on, with the first air cushion chamber 18A over the entire range A _{G of} the side bolster 16 is formed, and the second air cushion chamber 18B only in the outer display area A _{A of} the side cheek pad 16 is trained.

Be the air cushion chambers 18A and 18B through the pneumatic connections 26 inflated separately in a first embodiment or filled with air or other medium, so affects the outer increase range A _A, the increase in volume of the air cushion 18 in such a way that a travel Δs according to the section A _A in the outer region is particularly large, thereby a increased relative movement of the side cheek pad 16 can be caused.

8th shows therefore the side cheek 16 in non-issue position I and in the parking position II , being between these positions depending on the design of the air cushion 18 or the air cushion chambers 18A . 18B a travel Δs can be overcome.

The air cushion 18 can of course also be designed as a single-chamber air cushion, so from the outset, the in 8th illustrated shape of the air cushion 18 is manufactured and in a second embodiment via a pneumatic line and a single pneumatic connection 26 filled or vented.

These Formations have the advantage that an increased adjustment Δs in the x-direction, So in the direction of travel, resulting in a better lateral support of the Inmates is given.

Furthermore, in a third embodiment, there is the possibility of two chambers 18A . 18B form, which communicate with each other, so that also a pneumatic connection is sufficient to the air cushion chambers 18A . 18B to fill or vent.

In a preferred embodiment of the invention, the air cushion 18 executable in the particular embodiment so that it is within the side bolster 16 can be glued, allowing accurate positioning within the side bolster 16 is possible.

The movement process of the side cheek pads 16 and the arrangement of the air cushions 18 is in the 6A . 6B and 7A . 7B shown. The 6A and 6B show the backrest cushion 14 with the sidewalls 16 in the non-display position I ,

To clarify the separate areas, here produced by the cuts S1 and S2, arranged again, which the mobility of the side bolster 16 increase and the reference character H, the side cheek height is shown, which is in a preferred embodiment, for example, about 260 mm. The distance of the lower edge of the side bolster 16 for seat cushion, not shown 12 of the 6A is for example about 160 mm.

6B shows the top view of the backrest cushion 14 in the non-display position I , where the invisible air cushions 18 in the 6A and 6B are vented, so that the side bolsters 16 in the non-display position I are located.

In contrast, the show 7A and 7B the display position II the side cheeks 16 after ventilation of the air cushions 18 in open position II ,

Here, as already described, specially trained one-chamber air cushion 18 or specially designed two-chamber airbags 18 are used which are specially formed to generate a larger relative movement especially in the outer Ausstellbereich A _A [A-chamber air bag] or a second separate air cushions 18B have [two-chamber air cushion].

With the one-chamber air cushion or the two-chamber air cushion 18 are travel paths .DELTA.s of about 30 mm substantially in the y-direction starting from the Nichtausstellposition I in the open position II and back, wherein in the two-chamber air cushion design 18 each of the air cushions 18A . 18B approximately can have a travel of 15 mm in the y-direction.

There is the possibility of the travel paths of the air cushion chambers 18A . 18B the same size or the first air cushion chamber 18A with one opposite the second air chamber 18B form a larger travel or vice versa.

Exemplary are the seat part pad 12 , the backrest upholstery 14 and the side bolsters 16 made of a foam, which after the foam body on the base frame of the vehicle seat 10 is attached in the side bolsters 16 can be subsequently provided by the cuts S1 and / or S2, so that the described, slightly movable side cheek pads 16 result.

Subsequently, in a further step, the air cushions 18 arranged, in particular in the resulting space of the side cheek pad 16 glued and the corresponding pneumatic connections 26 intended. Finally, the arrangement of the cover, so that by a simple procedure, a particularly light and provided with a large relative movement Seitenwangenpolster 16 on the seat part cushion 12 or on the backrest part pad 14 can be realized.

To the system in the vehicle seat 10 further includes a pneumatic system, which preferably comprises a compressed air pump, a compressed air reservoir and connected thereto compressed air regulation unit, which is controlled by the control unit. The compressed air regulation device in turn comprises a pressure control which switches the compressed air pump in order to keep a constant overpressure on the input side, and a magnetic valve block which determines the inlet pressure in accordance with the pre gave the control unit distributed on the air cushions. The integrated pressure control also opens up the possibility of reducing the pressure in the air cushion by venting.

Not shown in the figures, another preferred embodiment is that between the air cushion 18 [One-chamber air cushion or two-chamber air cushion] and the inner surfaces of the respective freely movable executed side cheek pads 16 Signs, especially plastic signs, can be arranged.

The signs are after preparation of the foam or after cutting S1, S2 in the separate areas of the side cheek pad 16 pushed in, with the signs on the air cushion 18 [One-chamber air cushion or two-chamber air cushion] either one-sided or two-sided between the air cushion chambers 18A . 18B and the inner surface of the side cheek pad 16 are arranged. By the signs is a greater homogeneity in the transmission of the above-described adjustment movements of the respective Seitenwangenpolsters 16 reached.

10

vehicle seat

12

Seat part cushion

14

Backrest cushion

16

Side cheek pads

18

air cushion

18A

first Air cushion chamber

18B

second Air cushion chamber

20

mirror area

22

headrest

24

lordosis

26

pneumatic connections

S1

first slice

S2

second slice

I

Nichtausstellposition

II

deployed position

A _G

whole Ausstellbereich

A _A

outside exhibition area

H

Seat-back height [backrest]

.DELTA.s

Travel Range

Claims (11)

Vehicle seat ( 10 ), in particular motor vehicle seat, with a seat part pad ( 12 ) and a backrest cushion ( 14 ), wherein the seat pad ( 12 ) and / or the backrest cushion ( 14 ) laterally arranged side cheek pads ( 16 ), which are adjustable in their shape and / or orientation by at least one pneumatic adjusting means, characterized in that as adjustment means for generating a reversible and predeterminable relative movement of the side cheek pads ( 16 ) from a non-issue position ( I ) in a Ausstellposition ( II ) in each side bolster ( 16 ) at least one pneumatically actuated air cushion ( 18 ) is arranged, wherein the respective side cheek pads ( 16 ) in the lateral area along the length of the side bolster ( 16 ) and / or at its Seitenwangenpolsterenden separated and opposite the seat pad ( 12 ) and / or the backrest cushion is freely movable to form a relative movement of the respective side cheek pad ( 16 ) opposite the seat pad ( 12 ) or the backrest cushion ( 14 ) or an increased relative movement of the respective side bolster ( 16 ). Vehicle seat ( 10 ), in particular motor vehicle seat, with a seat part pad ( 12 ) and a backrest cushion ( 14 ), wherein the seat pad ( 12 ) and / or the backrest cushion ( 14 ) laterally arranged side cheek pads ( 16 ), which are adjustable in their shape and / or orientation by at least one pneumatic adjusting means, characterized in that as adjustment means for generating a reversible and predeterminable relative movement of the side cheek pads ( 16 ) from a non-issue position ( I ) in a Ausstellposition ( II ) in each side bolster ( 16 ) at least one pneumatically actuated air cushion ( 18 ) is arranged, which is designed such that the outer Ausstellbereich (A _A ) over the entire Ausstellbereich (A _G ) is more acted upon to a desired relative movement of the respective Seitenwangenpolster ( 16 ) opposite the seat pad ( 12 ) or the backrest cushion ( 14 ) to reinforce. Vehicle seat ( 10 ), in particular motor vehicle seat, with a seat part pad ( 12 ) and a backrest cushion ( 14 ), wherein the seat pad ( 12 ) and / or the backrest cushion ( 14 ) laterally arranged side cheek pads ( 16 ), which are adjustable in their shape and / or orientation by at least one pneumatic adjusting means, characterized by an adjusting means having the features according to claims 1 and 2. Vehicle seat according to claim 1, characterized in that the respective side cheek pads ( 16 ) in the lateral area along the length of the side bolster ( 16 ) and / or at its Seitenwangenpolsterenden opposite the seat pad ( 12 ) and / or the backrest cushion is formed and freely movable by a foam of the side cheek pad is formed separately from the beginning or by at least one section (S1, S2) is subsequently separated. Vehicle seat according to one of claims 1, 2 or 3, characterized in that the at least one pneumatically actuated air cushion ( 18 ) at least two air cushion chambers ( 18A . 18B ) [Two-chamber air cushion], which are pneumatically acted upon separately or interconnected and are jointly acted upon pneumatically, wherein • a first air cushion chamber ( 18A ) substantially along the entire Ausstellbereiches (A _G ) and • a second air cushion chamber ( 18B ) substantially in the outer Ausstellbereich (A _A ) of the respective Seitenwangenpolsters ( 16 ) is arranged. Vehicle seat according to one of claims 1 or 3, characterized in that a previous relative movement of the side cheek pads ( 16 ) from the non-display position ( I ) in the Ausstellposition ( II ) by the separate execution of the side cheek pad ( 16 ), in particular by the cuts (S1, S2), to a reduction of the forces to be overcome of the side cheek cushion ( 16 ) is executable at the same volume of air in a shorter admission period or in a same admission period with a smaller air volume or at the same volume of air in a same period of application increased relative movement of the side cheek pad ( 16 ) is feasible. Vehicle seat according to one of claims 2 or 3, characterized in that a previous relative movement of the side cheek pads ( 16 ) from the non-display position ( I ) in the Ausstellposition ( II ) by the arrangement of the formed according to claim 2 air cushion ( 18 ) by stronger admission of the air cushion ( 18 ) in the outer region (A _A ) of the side cheek pad ( 16 ) leads to the forces of the side cheek cushion ( 16 ) is executable at the same volume of air in a shorter admission period or in a same admission period with a smaller air volume or at the same volume of air in a same period of application increased relative movement of the side cheek pad ( 16 ) is feasible. Vehicle seat according to one of claims 1 to 5, characterized in that the at least one air cushion ( 18 ) [One-chamber air cushion] or the at least two air cushion chambers ( 18A . 18B ) [Two-chamber air cushion] in the space of the respective side bolsters ( 16 ) are glued. Vehicle seat according to one of claims 1 to 5, characterized in that between the pneumatically actuated air cushion 18 [One-chamber air cushion or two-chamber air cushion] and the inner surfaces of the side bolster ( 16 ) on one or both sides at least one shield-like elements can be arranged, which is a homogeneous transmission by the air cushion ( 18 ) achieved relative movement of the respective side bolster ( 16 ) opposite the seat cushion parts ( 12 ) and / or the backrest part pad ( 14 ) causes. Vehicle seat according to one of claims 1 to 3, characterized in that the side cheek pads ( 16 ) than from a mirror area ( 20 ) of the seat cushion ( 12 ) and / or the backrest cushion ( 14 ) separate side cheek pads ( 16 ) are formed. Vehicle seat according to one of claims 1 to 3, characterized in that the side cheek pads ( 16 ) and / or the mirror areas ( 20 ) of the seat cushion ( 12 ) and / or the backrest cushion ( 14 ) Are foam parts.