DE102018102596A1 - VEHICLE SEAT WITH ADJUSTABLE SIDE WALK - Google Patents

Abstract

The invention relates to a vehicle seat (1) having a seat part (30), a backrest (50), wherein the seat part (30) or the backrest (50) has at least one sidewall cushion (38, 58), and with at least one adjustment device (100 ) for adjusting a contour of the sidewall pad (38, 58) comprising at least one adjustment device (100) comprising at least one airbag (120) and a support plate (110) for supporting the at least one airbag (120) on a supporting structure of the vehicle seat (1 ), wherein a volume change of the at least one air cushion (120), the at least one air cushion (120) with a gas, in particular with air, can be filled, wherein by means of the volume change of the at least one air cushion (120) a change in the contour of the side cheek cushion (38 , 58). The support plate (110) has a receiving space (118) for at least partially receiving the at least one air cushion (120).

Description

The invention relates to a vehicle seat with a seat part, a backrest, wherein the seat part or the backrest has at least one side cheek pad, and with at least one adjusting device for adjusting a contour of the at least one side cheek pad, the at least one adjusting device having at least one air cushion and a support plate for supporting the at least one air cushion on a supporting structure of the vehicle seat, wherein the at least one air cushion with a gas, in particular with air, can be filled to a volume change of the at least one air cushion, wherein by means of the volume change of the at least one air cushion, a change in the contour of the side cheek cushion.

State of the art

From the EP 0 229 737 B1 a support with inflatable chamber for vehicle seats is known. The support is covered with a cushion and is supported on a holding part, in which the chamber is connected to a filling arrangement. The chamber is arranged under a movable flap, wherein the movable flap is connected via a plastic joint with another flap which is fixed to the holding part. The chamber is provided between the two flaps.

The EP 2 149 475 A1 discloses a vehicle seat having a seat surface associated with a cushion body, and a deformingly acting on the cushion body for adjusting the seat contour of the seat molding device in which at least one can be filled with a medium bubble of the molding device is embedded in the cushion body. In addition, a support element, in particular a plate-shaped part, is integrated into the cushion body. The support member is located at the rear of the bladder and prevents the bladder from expanding rearwardly.

The DE 20 2017 103 277 U1 discloses a seat assembly comprising a seat frame for a seat back and / or a seat bottom, at least two side pad portions spaced laterally from the seat frame, at least two cushioned support assemblies, one provided along each of the two side pad portions, each cushion support assembly including an air bladder, which is mounted on the seat frame along each of the side cushion portions, and a rigid support which is attached to the air bubble and not directly attached to the seat frame has.

task

The invention is based on the object to improve a vehicle seat with an adjustment for adjusting a contour of a side bolster of the type mentioned. In particular, wrinkling or unintentional folding of the at least one air cushion should be avoided during cushioning of the vehicle seat when coating the at least one air cushion with a pad foam part. In addition, a vehicle seat is to be provided in which the risk of improper installation of the adjusting device is reduced.

solution

This object is achieved by a vehicle seat with a seat part, a backrest, wherein the seat part or the backrest has at least one side cheek pads, and with at least one adjusting device for adjusting a contour of the at least one cheek pad, the at least one adjusting device having at least one air cushion and a Support plate for supporting the at least one air cushion on a supporting structure of the vehicle seat, wherein the at least one air cushion with a gas, in particular with air, can be filled to a volume change of the at least one air cushion, wherein by means of the volume change of the at least one air cushion, a change in the contour of the Sidewall pad takes place, wherein the support plate has a receiving space for at least partially receiving the at least one air cushion.

Characterized in that the support plate has a receiving space for at least partially receiving the at least one air cushion, the adjusting device can be coated with a foam part of the side cheek pad without wrinkling or unwanted folding of the at least one air cushion. In this case, the at least one air cushion may be partially received in the receiving space only before and during assembly of the vehicle seat. After assembly of the vehicle seat and after a first filling of the at least one air cushion, the at least one air cushion can be arranged permanently completely outside the receiving space. Alternatively, the empty air cushion can retract into the receiving space after actuation of the adjusting device and in at least one setting position of the support plate.

By changing the contour of the side bolster, the backrest can be to the body of the occupant and beyond to the wishes of the occupant in terms of lateral support and Adjust freedom of movement. Preferably, the backrest has in its two lateral outer areas in each case a side bolster, in particular for increasing a lateral support of the occupant during cornering on.

The adjusting device can be fastened to a backrest structure of the vehicle seat. The adjusting device can be fastened in the region of a side cheek to a backrest structure of the vehicle seat. The adjusting device can be fastened to a seat part structure of the vehicle seat. The adjusting device can be fastened in the region of a side cheek to a seat part structure of the vehicle seat. Under a backrest structure are the supporting components of the backrest to understand, for example, a plastic shell, a tubular frame or a backrest structure in a sheet metal shell construction. A seat part structure is understood to mean the load-bearing components of the seat part, for example seat cushion shells, kinematics components such as rockers, profiled sheets or wire brackets.

The at least one air cushion is supported on a support plate. The support plate may be attached to the backrest structure. Thus, the at least one air cushion can be supported on the backrest structure. The support plate may be attached to the seat part structure. Thus, the at least one air cushion can be supported on the seat part structure. When using exactly one air cushion, the air cushion can be supported on the one hand on the support plate and on the other hand be in contact with a foam part of the side cheek pad. When using more than one air cushion, the air cushions can be supported against each other. One of the several air cushions can be supported on the support plate. Another of the two airbags is preferably in contact with a foam part of the side cheek pad.

The receiving space may be arranged at least in sections in an edge region of the support plate. The receiving space may be at least partially integrated in the support plate. The support plate may be a plastic component, in particular an injection-molded component.

The receiving space can at least partially receive an end region of the at least one air cushion in such a way that contact between the side bolster and an end region of the at least one air cushion is partially, substantially or completely avoided when the side bolster is pushed from an assembly direction. The at least one air cushion can, in particular after assembly of the adjusting device in the vehicle seat, completely emerge from the receiving space.

The receiving space may be formed by a lip on the support plate. The lip can be integrated in the support plate. The lip may have a web and a leg. The leg can be largely parallel to a base plate of the support plate. Under largely parallel angles are to be understood up to thirty degrees to the base plate. The web can be curved. The web can be executed curved around a spatial direction. The web can be executed curved around two spatial directions. The web can be executed curved around three spatial directions. The bridge can connect the base plate and the leg with each other. The web can be formed only partially in the circumferential direction of the base plate. The web can thus be shorter than the leg in the circumferential direction.

In summary, the support plate of the adjustment device may have a partially circumferential lip under which an air cushion is arranged. The air bag is protected from wrinkling and / or unwanted folding during assembly by the lip. Once the air cushion is inflated, the air cushion can slip out from under the lip. The lip protects especially during assembly of the vehicle seat from wrinkling and / or unwanted folding of the air cushion without affecting the function of the air cushion.

Figures and embodiments of the invention

Before subsequently embodiments of the invention will be described in more detail with reference to drawings, it should first be noted that the invention is not limited to the described components or the described method steps. Furthermore, the terminology used is not a limitation, but has only exemplary character. Insofar as the singular is used below in the description and the claims, the plural is included in each case, unless the context explicitly excludes this.

In the following the invention is explained in more detail with reference to an advantageous embodiment shown in the figures. However, the invention is not limited to this embodiment. Show it:

• 1 FIG. 2 is a schematic front view of a vehicle seat according to the invention, wherein components concealed by a cushion of the backrest are only partially and dashed,
• 2 : A perspective view of a support plate of the vehicle seat according to the invention 1 .
• 3 : another perspective view of the support plate 2 .
• 4 : a side view of the support plate 2 wherein two air cushions are arranged in a vented state on the support plate,
• 5 : one opposite to the presentation 4 turned side view of the support plate 2 , and
• 6 : one 5 corresponding view, the two airbags are filled.

An in 1 schematically illustrated vehicle seat 1 for a motor vehicle has a seat part 30 and one, in particular relative to the seat part 30 adjustable backrest in its inclination 50 on. The vehicle seat 1 is presently designed as a sports seat, however, the invention is not limited to a sports seat.

The vehicle seat 1 is described below using three mutually perpendicular spatial directions. A longitudinal direction runs in a built-in vehicle seat 1 substantially horizontal and preferably parallel to a vehicle longitudinal direction, which corresponds to the usual direction of travel of the vehicle. A transverse direction perpendicular to the longitudinal direction y is also horizontally aligned in the vehicle and runs parallel to a vehicle transverse direction. A vertical direction z is perpendicular to the longitudinal direction and perpendicular to the transverse direction y , In a vehicle seat installed in the vehicle 1 the vertical direction runs z parallel to the vehicle's vertical axis.

The position and direction used, such as front, rear, top and bottom refer to a viewing direction of a vehicle seat 1 seated occupants in normal seating position, with the vehicle seat 1 installed in the vehicle, in a suitable for passenger transport use position with largely upright backrest 50 and as usual in the direction of travel is aligned. The vehicle seat according to the invention 1 However, it can also be installed in a different orientation, for example, transversely to the direction of travel.

The backrest 50 includes a backrest structure 52 , For example, a backrest structure 52 made of sheet steel, as well as one of the backrest structure 52 worn upholstery 54 , The upholstery 54 has a center cushion 56 and two side bolsters 58 on. The middle cushion 56 and the two side bolsters 58 are preferably as a one-piece pad 54 executed, but may also be formed separately from each other. Each of the two side bolsters 58 has exactly one padded pocket for receiving one each on the backrest structure 52 arranged adjustment 100 for adjusting a contour of the side bolster 58 on.

The two side bolsters 58 and the two adjusters 100 are mirror-symmetrical with respect to a perpendicular to the transverse direction y trained level and arranged. Therefore, only one of the two adjusters is below 100 described. The adjustment device 100 allows adjustment of the outer, a seat occupant facing contour of the side bolster 58 , The side bolsters 58 serve in particular the lateral support of an occupant of the vehicle seat 1 ,

The seat part 30 includes a seat part structure 32 , For example, comprising a seat cushion shell made of sheet steel, and one of the seat part structure 32 worn upholstery 34 , The upholstery 34 has a seat cushion 36 and two side bolsters 38 on. The seat cushion 36 and the two side bolsters 38 are preferably as a one-piece pad 34 executed, but may also be formed separately from each other. The two side bolsters 38 may also be an adjustment for adjusting a contour of the side cheek pad 38 have in terms of structure and function of the adjustment 100 the backrest 50 equivalent.

Below is with reference to the 2 to 6 the adjustment device 100 described. The adjustment device 100 has a support plate 110 and two air cushions 120 on. The support plate 110 is with the backrest structure 52 connected, preferably screwed. For this purpose, the support plate 110 two circular openings 119 as screw holes on. Preferably, on the backrest structure 52 appropriate nuts arranged. A first air cushion 120 is on the support plate 110 arranged, preferably by means of elongated openings 119 the support plate 110 hinged, known per se fasteners. A second air cushion 120 supported on the one hand on the first air cushion 120 On the other hand, it carries an area of the side bolster facing the occupant 58 , The two air cushions 120 are preferably fixed to each other, for example, connected to each other by means of a weld.

The two air cushions 120 are filled with a gas, preferably with air, which increases the volume of the air cushion 120 increased. As are the air cushions 120 over the support plate 110 on the backrest structure 52 support the volume change by filling the air cushion 120 to a change in the contour of the side cheek pad 58 in the direction of the occupant. By emptying the air cushions 120 that is, by reducing the volume of gas in the airbags 120 . the volume of the air cushion decreases 120 again, resulting in the contour of the sidewall pad 58 in particular due to a cushion bias moved in a shallower position away from the occupant.

The support plate 110 is preferably a plastic component. The support plate 110 has a largely flat base plate 111 on. The base plate 111 In the present case, it has approximately the shape of a rectangular trapezoid. The support plate 110 also has a lip 112 on. The lip 112 is partially along the outside of the base plate 111 arranged and fixed in the present case with the base plate 111 connected. The lip 112 in the present case runs along two sides of the base plate 111 wherein one of the two sides is parallel to an outer contour of the side cheek pad 58 runs.

The lip 112 includes a footbridge 114 and a thigh 116 , The thigh 116 runs largely parallel to the base plate 111 , The jetty 114 connects the base plate 111 and the thigh 116 together. The lip 112 forms a recording room 118 for at least partially receiving the two air cushions 120 before and during assembly, in particular padding, of the vehicle seat 1 , The recording room 118 runs in sections along the outer outer edge of the support plate 110 ,

The cross-section of the recording room 118 is largely U-shaped. The recording room 118 is in particular against a mounting direction M considered open. The recording room 118 is from a mounting direction M considered closed. The mounting direction M corresponds to the direction in which the side cheek pads 58 during a padding of the vehicle seat 1 on the adjusting device 100 is postponed. The recording room 118 takes end areas 122 the two air cushions 120 such that when pushing the side bolster 58 in the mounting direction M a contact between the side bolster 58 and the end areas 122 the air cushion 120 is largely avoided. This causes the air cushions 120 during assembly of the side bolster 58 on the adjusting device 100 protected from wrinkling and / or unwanted wrinkles.

The 4 and 5 show the two air cushions 120 in a largely deaerated state and before first filling with gas. The end areas 122 the two air cushions 120 they are both in the recording room 118 so the air cushions 120 during assembly of the side bolsters 58 as described above are protected against wrinkling and / or unwanted wrinkles. A first filling of the air cushion 120 with gas after mounting the side bolsters 58 causes the in 6 illustrated state of the adjustment 100 , The end areas 122 one of the two air cushions 120 occurs due to the initial filling of the air cushion 120 from the recording room 118 out. Depending on the embodiment of the invention, both end regions occur 122 when ventilating from the recording room 118 out. Depending on the embodiment of the invention, an end region occur 122 or both end regions 122 after bleeding the airbags 120 back to the recording room 118 or alternatively during operation of the vehicle seat 1 always outside the recording room 118 ,

The invention is not limited to the number of airbags 120 limited. The number of air cushions 120 is among other things of a required maximum contour change of the side cheek pad 58 dependent.

The features disclosed in the foregoing description, the claims and the drawings may be of importance both individually and in combination for the realization of the invention in its various forms.

Although the invention has been described in detail in the drawings and the foregoing description, the illustrations are illustrative and exemplary and not limiting. In particular, the choice of the proportions of the individual elements shown in the drawing should not be construed as necessary or restrictive. Furthermore, the invention is not limited in particular to the illustrated embodiments. Other variants of the invention and their execution will become apparent to those skilled in the art from the foregoing disclosure, the drawings and the claims.

Terms used in the claims, such as "comprising," "having," "including," "containing," and the like, do not exclude other elements or steps. The use of the indefinite article does not exclude a majority. A single device can perform the functions of several units or devices mentioned in the claims.

LIST OF REFERENCE NUMBERS

1

vehicle seat

30

seat part

32

Seat part structure

34

pad

36

Seat cushion pad

38

Side cheek pads

50

backrest

52

back structure

54

pad

56

center pad

58

Side cheek pads

100

adjustment

110

support plate

111

baseplate

112

lip

114

web

116

leg

118

accommodation space

119

opening

120

air cushion

122

end

M

mounting direction

y

transversely

z

vertical direction

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• EP 0229737 B1 [0002]
• EP 2149475 A1 [0003]
• DE 202017103277 U1 [0004]

Claims (10)

Vehicle seat (1) with a seat part (30), a backrest (50), wherein the seat part (30) or the backrest (50) at least one side cheek pads (38, 58), and with at least one adjusting device (100) for adjusting a Contour of the at least one side cheek cushion (38, 58) comprising at least one adjustment device (100) comprising at least one air cushion (120) and a support plate (110) for supporting the at least one air cushion (120) on a supporting structure of the vehicle seat (1), wherein for a volume change of the at least one air cushion (120) the at least one air cushion (120) can be filled with a gas, in particular with air, wherein by means of the volume change of the at least one air cushion (120) a change in the contour of the side cheek cushion (38, 58 ), characterized in that the support plate (110) has a receiving space (118) for at least partially receiving the at least one air cushion (120). Vehicle seat (1) to Claim 1 , characterized in that the at least one adjustment device (100) is attached to a backrest structure (52) of the backrest (50) or a seat part structure (32) of the seat part (30). Vehicle seat (1) to Claim 1 or 2 , characterized in that the at least one support plate (110) on the backrest structure (52) of the backrest (50) or the seat part structure (32) of the seat part (30) is attached. Vehicle seat (1) according to one of the preceding claims, characterized in that the receiving space (118) is arranged at least in sections in an edge region of the support plate (110). Vehicle seat (1) according to one of the preceding claims, characterized in that the receiving space (118) at least partially receives an end region (122) of the at least one air cushion (120) in such a manner that when the side cheek cushion (38, 58) is pushed from an assembly direction ( M) a contact between the side cheek pads (38, 58) and an end region (122) of the at least one air cushion (120) at least in sections, in particular completely, is avoided. Vehicle seat (1) according to one of the preceding claims, characterized in that the at least one air cushion (120) emerges completely from the receiving space (118) during a first use of the adjusting device (100). Vehicle seat (1) according to one of the preceding claims, characterized in that the receiving space (118) is formed by a lip (112) on the support plate (110). Vehicle seat (1) to Claim 7 , characterized in that the lip (112) has a web (114) and a leg (116). Vehicle seat (1) to Claim 8 , characterized in that the leg (116) extends substantially parallel to a base plate (111) of the support plate (110) and the web (114) connects the base plate (111) and the leg (116) with each other. Vehicle seat (1) according to one of the preceding claims, characterized in that the backrest (50) has two side cheek pads (58) each with an adjustment device (100), each of the adjustment devices (100) comprising a support plate (110) and two airbags (120 ) having.

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