WO2021043701A1

WO2021043701A1 - Comfort module for a vehicle seat

Info

Publication number: WO2021043701A1
Application number: PCT/EP2020/074180
Authority: WO
Inventors: Jörg Gropp
Original assignee: Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg
Priority date: 2019-09-04
Filing date: 2020-08-31
Publication date: 2021-03-11
Also published as: DE102019123684A1

Abstract

The invention relates to a comfort module (1A-1C) for a vehicle seat (F) comprising: a support (10A; 10B) and a plurality of operable comfort units (11A-1G) that are preassembled on the support (10A; 10B), wherein the support (10A; 10B) with the comfort units (11A-1G) preassembled thereon can be mounted on a support frame (20) of the vehicle seat (F).

Description

Comfort module for a vehicle seat

description

The invention relates to a comfort module for a vehicle seat according to claim 1, a backrest and a vehicle seat with such a comfort module, as well as a method for producing a vehicle seat.

In the recent past, vehicle seats have increasingly been equipped with comfort functions that enable a seat user, for example, to adjust the vehicle seat as ergonomically as possible. For this purpose, many vehicle seats include several comfort units, for example for adjusting a lumbar support, a headrest or the like. In the case of vehicle seats, a seat frame and a backrest frame, on which the respective comfort units are mounted, are typically produced. For this purpose, appropriate fastening elements are mounted or formed on the backrest frame. An increasing number of comfort units thus requires a large number of fastening elements on the backrest frame. However, the backrest frame must not be weakened in order to provide a seat user with a secure hold even in the event of a crash. In many cases this results in a complex structure of the Backrest frame. Changing the design of such a backrest frame, in particular adding or leaving out individual comfort units, is sometimes extremely complex, which makes flexible design of the vehicle seat more difficult.

The structure of a backrest frame is usually even more complex if it has two parts that can be pivoted relative to one another, e.g. to provide an adjustable backrest head, as in the case of the vehicle seat of EP 2 163 171 A1.

The object of the present invention is to enable a vehicle seat to be designed as flexibly as possible.

This object is achieved by an object with the features of claim 1.

According to this, a comfort module for a vehicle seat is provided which comprises a carrier and several separate comfort units, in particular preassembled at different points on the carrier and operable by a user, for providing several comfort functions. The carrier can be mounted with the comfort units pre-assembled on it on a support frame, e.g. a backrest frame, of the vehicle seat.

The comfort module is therefore pre-assembled and can be pre-tested and can be mounted as a unit on the support frame. As a result, the support frame only needs to have (comparatively few) assembly points for the carrier. It is possible to equip the carrier with either all or only some of the comfort units, without the carrier frame having to be changed for this purpose. This is based on the idea of separating the comfort functions from a power flow through external forces acting on the support frame. In this way it is possible to design the vehicle seat particularly flexibly and individually. Furthermore, the same comfort module or comfort modules of the same design can be mounted in a simple manner on different support frames. For example, identically designed comfort modules can be mounted both on a support frame of a driver's seat, a front passenger seat and a seat in a second or third row of seats. The comfort module can comprise at least three or at least four preassembled comfort units. For example, all operable, in particular adjustable (and in particular not arranged in the power flow between the backrest and a seat part of the vehicle seat) comfort units of the backrest are preassembled on the carrier (i.e. in particular or only with the exception of Fittings for adjusting the incline of the backrest). A seat belt does not represent a comfort unit. This enables a particularly simple assembly of the vehicle seat and great flexibility in its design.

At least some or all of the comfort units can be adjustable independently of one another. One or more of the comfort units can each include a motor which can each be controlled independently of the other comfort units. Alternatively or additionally, it is possible that one or more of the comfort units can be set manually.

At least some or all of the comfort units can include electrical components (e.g., an electric motor). By means of the electrical components, the comfort units can be actively operated and / or adjusted, for example. This enables a particularly high level of comfort.

Optionally, at least one electrical line, e.g. supply or signal line, for one or more of the electrical components is guided on the carrier, e.g. attached to it. This enables a high degree of integration to be achieved, which enables the comfort module to be mounted on the support frame particularly quickly and easily.

Optionally, one of the pre-assembled comfort units is designed as a lumbar support adjustment. Alternatively or additionally, another of the preassembled comfort units is designed as a headrest adjustment, as a side cheek adjustment, as a massage unit, as a loudspeaker unit, as a neckrest adjustment or as a backrest adjustment.

In particular, one of the preassembled comfort units can be designed as a headrest adjustment. The headrest adjustment can have one or more degrees of freedom. Optionally, the headrest adjustment is attached to the carrier via rails.

The carrier can have a torso section and a backrest head. It can be provided that one of the preassembled comfort units is designed as a backrest head adjustment and is set up to change an inclination of the backrest head relative to the torso section. The backrest head is designed to support a shoulder area of a user. The torso section is designed to support a lumbar region of the user. Providing a backrest head adjustment creates a particularly ergonomically adjustable backrest enables. Optionally, the carrier can be mounted on the carrier frame via the comfort unit designed as a backrest head adjustment.

According to a further development, the backrest head and the fuselage section are connected to one another via a solid body joint. This enables a particularly simple design and manufacture with a few individual parts.

The comfort unit designed as a backrest head adjustment can have three axes of rotation. Furthermore, this comfort unit in particular can comprise a motor, the motor being set up to change the distance between two of the three axes of rotation. Provision can be made for the inclination of the backrest head to be adjustable relative to the fuselage section. The three axes of rotation together form a drive triangle, one side of the triangle being variable in length by means of the motor. Such a drive mechanism enables a particularly flat design.

The carrier provides, for example, a support surface for supporting the back of a user, optionally with a cushion and / or cover in between. The carrier thus has a double function and carries the comfort units and serves for their pre-assembly and also provides a support surface for the user. In this way, a vehicle seat can be manufactured with a particularly small number of parts. An additional spring mat can be omitted and the carrier can take over the function of the spring mat. The carrier can extend over a major part of a length of the support frame. The length of the support frame extends from a side facing a seat part to a side facing away from the seat part. With the comfort module mounted on the support frame, the back of a user can be supported below the shoulder area, in particular the lumbar area of the seat user. The carrier extends, for example, from an area adjoining the seat part to at least the shoulder area. The support surface optionally extends substantially the length of the back of an average seat occupant. For example, the support surface is designed to support a lower part of the back and an upper part of the back.

The carrier can comprise or consist of a plastic, which enables a low weight with a simple manufacturing process. Furthermore, the carrier can be designed in one piece or in several pieces, in particular precisely in two pieces. Optionally, the carrier is made from a composite material, in particular a fiber composite material, for example from organic sheet. Organic sheet is formed by continuous fibers (with lengths of typically at least 50 mm) embedded in a thermoplastic plastic matrix. Such materials, in particular organic sheet, allow a high load capacity with a particularly low weight.

The carrier optionally has stiffening ribs. The stiffening ribs can be arranged locally in certain areas. More heavily stressed areas can be stiffened by the stiffening ribs. The stiffening ribs are, for example, injected onto a flat element, e.g. made of plastic or, in particular, organic sheet metal.

Optionally, the carrier has at least one latching element for a latching connection with a latching element of the support frame. For example, bendable locking hooks are formed on the carrier, which can be clipped onto a wire mounted on the support frame, for example.

According to one aspect, a backrest for a vehicle seat is provided. The backrest comprises a support frame on which the comfort module according to any configuration described herein is mounted.

According to one aspect, a vehicle seat is provided. The vehicle seat includes the backrest according to any configuration described herein. The support frame of the backrest can be pivotably mounted on a seat part of the vehicle seat via fittings.

Optionally, all comfort functions (apart from the tilt function optionally provided by the fittings) of the backrest are provided by comfort units mounted on the carrier.

According to one aspect, a method for manufacturing a vehicle seat is provided. The method includes providing a carrier; the mounting of several (separately) operable comfort units on the carrier to form a comfort module, the comfort units being designed to provide various comfort functions; and the mounting of the comfort module with the comfort units preassembled thereon on a support frame of the vehicle seat. The carrier with the preassembled comfort units can be designed according to any configuration described herein.

According to one aspect, a backrest for a vehicle seat is provided. The backrest comprises a backrest frame and a backrest head, the inclination of which can be adjusted relative to the backrest frame by means of a backrest head adjustment. The backrest frame is coupled to a seat part, in particular pivotable. The backrest head adjustment has three axes of rotation, wherein a distance between two of the three axes of rotation can be changed (in particular by means of a motor) in order to adjust the inclination of the backrest head relative to the backrest frame. The three axes of rotation together form a drive triangle, one side of the triangle being variable in length. Two of the three axes of rotation can be arranged above the backrest frame or at least above a support, for example crossmember of the backrest frame, on which the backrest head is supported on the backrest frame. Alternatively or additionally, that axis of rotation about which the backrest head can be pivoted relative to the backrest frame can be arranged below the other two axes of rotation (closer to the seat part). The backrest can be designed according to any configuration described herein.

The idea on which the invention is based will be explained in more detail below with reference to the exemplary embodiments shown in the figures. It shows in schematic representations:

1A-1D a comfort module for a vehicle seat with a carrier and several comfort units mounted thereon in different views;

2 shows the comfort module according to FIGS. 1A-1D without a headrest;

3A and 3B show the comfort module according to FIGS. 1A-1D mounted on a support frame of a vehicle seat designed as a backrest frame in two different settings of a backrest head;

4 shows the comfort module according to FIGS. 1A-1D and as

Backrest frame designed support frame of the Vehicle seat, which is coupled to a seat frame via fittings;

5A-5D show a further comfort module for a vehicle seat with a carrier and several comfort units mounted thereon in different views; and

6A-6E show a further comfort module for a vehicle seat with a carrier and several comfort units mounted thereon in different views.

1A to 1D show a comfort module 1A for a vehicle seat. The comfort module 1A comprises a carrier 10A and several comfort units 11A-11C, 11E-11G preassembled thereon.

The carrier 10A provides a support surface 100 on which a seat user can lean when the comfort module 1A is mounted on the vehicle seat. The support surface 100 is designed in such a way that it provides areas for supporting the lumbar area of the seat user and the shoulder area of the seat user. The carrier 10A is thus designed to support the back of the seat occupant over essentially its entire length. For this purpose, the carrier 10A has a body section 102 and a backrest head 101. The torso section 102 provides the region of the support surface 100 which is designed to support the lumbar region and the backrest head 101 comprises the region of the support surface 100 which is designed to support the shoulder region. The backrest head 101 is pivotable relative to the torso section 102. For this purpose, the carrier 10A comprises solid-state hinges 103 in the present example.

The carrier 10A is designed in two parts and comprises a lower part, which forms the body section 102, as well as two side cheeks 104, which are connected to the body section 102 via webs (in one piece), and a shield 108, which forms part of the backrest head. In the present case, the two parts are screwed together. Alternatively, it would also be conceivable to form the carrier 10A in one piece.

The carrier 10A comprises (for each of the two parts) a flat element which is provided with stiffening ribs 105 on the rear. The carrier 10A consists, for example, of a plastic or comprises a plastic. In the present case, the flat element is an organic sheet and comprises continuous fibers in a thermoplastic plastic matrix are embedded. The stiffening ribs 105 are injection-molded onto the organic sheet. Glass fiber reinforcements and / or metallic inserts are optionally provided in the carrier 10A.

The stiffening ribs 105 are arranged in a greater number per unit area in some areas, e.g. on the shield 108, than in other areas, e.g. on the side walls 104. In still other areas, no stiffening ribs are provided, e.g. in the area of the loin. There are also weakened areas in the form of lateral incisions and cutouts. As a result, the carrier 10A is flexible in the area of the loin and thus flexible and fulfills the function of a spring mat. The locally different arrangement of stiffening ribs 105 enables an optimized flow of forces to be achieved.

In particular with reference to FIG. 2 it can also be seen that several fastening points are formed (injection molded) on the carrier 10A, in the present case in the form of several screw domes 106 for the assembly of several of the comfort units. It is also illustrated in particular with reference to FIG. 2 that one or more electrical lines 113 are routed on the carrier 10, specifically attached to cable holders and / or one or more cable ducts designed for this purpose. Thus, the comfort module 1A makes it possible not only to pre-assemble the individual comfort units 11A-11C, 11E-11G on the carrier 10A, but also to wire the comfort units 11A-11C, 11E-11G before the comfort module 1A is installed on the vehicle seat. For example, only one or more plug connectors then need to be plugged in to connect the convenience units 11A-11C, 11E-11G.

The carrier 10A can be used without any further covering, so that the seat user can lean against it while touching the material of the carrier 10A. Alternatively, the carrier 10A is provided with a cushion and / or a cover. For this purpose, mounting points for the upholstery and / or the cover can be provided on the carrier 10A, e.g. a piping channel, clamping hooks or the like.

A headrest 14 and a headrest 13 are also mounted on the bracket 10A (see e.g. Fig. 1A).

Each of the comfort units 11A-11C, 11E-11G provides a comfort function for the vehicle seat. For this purpose, each of the comfort units 11A-11C, 11E-11G is separate and independent of the other comfort units 11A-11C, 11E-11G operable, e.g. adjustable. Each of the comfort units 11A-11C, 11E-11G comprises electrical components and / or components that can be moved relative to one another and / or relative to the carrier 10A. The comfort units 11A-11C, 11E-11G are thus active units.

The comfort module 1A according to FIGS. 1A-1D comprises a comfort unit in the form of a lumbar support adjustment 11A, a comfort unit in the form of a headrest adjustment 11B, a comfort unit in the form of a side cheek adjustment 11 C, a comfort unit in the form of a massage unit 11 D, a comfort unit in the form of a loudspeaker unit 11E, a comfort unit in the form of a headrest adjustment 11F and a comfort unit in the form of a backrest head adjustment 11G.

The lumbar support adjustment 11A comprises a slide which is guided (on both sides) on a (U-shaped) wire 15 suspended from the carrier 10A. The slide can be adjusted up and down along the wire 15 via a spindle drive with a motor 111. The carriage presses against the carrier 10A in order to support the lordosis of the seat occupant at the set position. The slide of the lumbar support adjustment 11A is in two parts, the distance between the two parts being adjustable via a further spindle drive with a further motor 111. By adjusting the distance between the two parts of the carriage, a curvature of the flexible elements hidden in the figures is changed in order to press the carrier 10A more or less in the direction of the back of the seat occupant. The comfort function of the lumbar support adjustment 11A is the adjustability of a region of the wearer 10A that supports the lumbar support.

The headrest adjustment 11 B comprises a slide which can be moved longitudinally on rails 110. The headrest 13 is mounted on the slide. The rails 110 are attached to the carrier 10A, specifically to the shield 108. In the present case, the rails are made of steel. Alternatively, the rails can be injection molded onto the carrier 10A. The carriage with the headrest can be adjusted relative to the carrier 10A (in particular to the shield 108) via a spindle drive with a motor 111. The height of the headrest 13 can be adjusted by means of the headrest adjuster 11B. Furthermore, the headrest adjustment 11 B comprises a mechanism, in the present example a scissors mechanism) for adjusting the position of the headrest 13 relative to the carrier 10A in the direction of the head of the seat occupant and in the opposite direction (perpendicular to the direction of the height adjustment). For this purpose, the headrest adjustment 11 B includes a second motor 111. The shield 108 comprises two wings, between which an intermediate space is formed, see in particular FIG. 2. The headrest adjustment 11B is arranged in this intermediate space, which enables a particularly small overall depth. The rails 110 are arranged on the shield 108 on two opposite sides of the space.

The side cheek adjustment 11 C is in two parts and has an assembly for each of the two side cheeks 104. The side cheek adjustment 11C comprises a motor 111 per side with which a mechanism, for example a lever mechanism, can be actuated in order to pivot the respective side cheek 104 relative to the middle section of the carrier 10A arranged between the side cheeks 104. In the example shown, the two parts of the side cheek adjustment 11C are designed to be supported on a support frame in the form of a backrest frame of the vehicle seat and, by actuating the respective motor 111, to push the corresponding side cheek 104 away from the support frame or to move it towards the support frame.

The loudspeaker unit 11 E comprises two loudspeakers mounted on the shield 108. The loudspeakers are arranged to the left and right of the ears of an average-sized seat occupant. The volume and the type of sounds played can be adjusted.

The neckrest 14 is arranged below the headrest 13 and, in the example shown, is also mounted on the slide of the headrest adjustment 11B, but could alternatively also be mounted directly on the shield 108. The headrest 14 can be moved in one direction towards a seat user leaning against the comfort module 1A and in the opposite direction. For this purpose, the headrest adjustment 11 F comprises a motor 111 or two motors 111 (in particular to be recognized in FIG. 1B through slots in a support plate of the headrest 14).

The backrest head adjustment 11G is not shown in FIGS. 1A-1D, but is shown in FIGS. 3A and 3B. 3A and 3B show the comfort module 1A in a state connected to the backrest frame 20.

The backrest head adjustment 11G defines a drive triangle with three axes of rotation D1-D3. A bearing part 114 of the backrest head adjustment 11G is mounted on the backrest frame 20 so as to be pivotable about a first axis of rotation D1 (specifically, on a Bracket 24). An adjustment part 112, backrest head adjustment 11G, is pivotably mounted on shield 108 about a second axis of rotation D2 (specifically on a holder attached to it). The shield 108 is pivotably mounted on the backrest frame 20 about a third axis of rotation D3 (specifically again on the holder 24, specifically at a point on the holder 24 that is spaced from the first axis of rotation D1).

The backrest head adjustment 11G comprises a motor 111 which, e.g. by means of a spindle drive, can move the adjustment part 112 relative to the bearing part 114, in the present case in such a way that the distance between the first axis of rotation D1 and the second axis of rotation D2 is changed as a result of this displacement. If the adjustment part 112 is extended by actuating the motor 111, then the distance between the first and second axes of rotation D1, D2 is increased, if the adjustment part 112 is retracted by actuating the motor 111 in the opposite direction of adjustment, the distance is reduced. The other two distances between the first and the third axis of rotation D1, D3 and between the second and the third axis of rotation D2, D3 are fixed. As a result, the shield 108 (and thus the backrest head 101) can be pivoted back and forth relative to the torso section 102 (and to the backrest frame 20), that is, its inclination is adjustable.

In the side view of FIGS. 3A and 3B, only one adjustment part 112 and one bearing part 114 can be seen, the backrest head adjustment 11G in the present case comprises two mutually adjacent mechanisms, each of which can have a separate motor 111, or which can alternatively be coupled to a shaft are.

In FIGS. 3A and 3B, an upper end of the backrest frame 20 defined by an upper cross member 202 of the backrest frame 20 can also be seen. Parts of the backrest frame 20 only protrude above this upper end from an optional (one-sided) retractor tower 201. The retractor tower is hot formed. A belt exit point 25 for a safety belt is provided on the retractor tower 201. Alternatively, the seat belt could also be arranged and mounted on the vehicle body, for example on a B-pillar. The seat belt is therefore not mounted on the carrier 10A. At least one of the axes of rotation D1-D3 of the backrest head adjustment 11G is arranged above the upper cross tube 202, in particular above the upper end of the backrest frame 20 (apart from the retractor tower 201). In the present case, the first axis of rotation D1 and the second axis of rotation D2 are arranged above it. This arrangement allows a particularly shallow construction depth. The backrest head 101, and in particular the shield 108, protrudes beyond the backrest frame 20. The third axis of rotation D3 is arranged below the first and second axis of rotation D1, D2.

The backrest head adjustment 11G essentially takes over the mounting of the comfort module 1A on the backrest frame 20. It transfers a predominant part of the forces acting on the carrier 10A to the backrest frame 20.

The comfort module 1A together with the comfort units 11A-11C, 11E-11G attached to the carrier 10A at the interfaces provided for this purpose (including the neck rest 14 and the head rest 13) represent a preassembled and pre-testable assembly.

Together with the comfort units 11A-11 C, 11 E-11G preassembled thereon, the carrier 10A can be mounted on a support frame, specifically the backrest frame 20 of the vehicle seat 2, as shown in particular with reference to FIG. 4. The arrow shown illustrates the method for producing the vehicle seat F. After the carrier 10A has been provided and the several separately operable comfort units 11A-11C, 11E-11G have been mounted on the carrier 1A, that of the comfort module 1A with the comfort units preassembled thereon becomes 11A-11C, 11E-11G mounted on a support frame, specifically the backrest frame 20 of the vehicle seat 2.

In the example shown, the carrier 10A comprises a plurality of mutually spaced mounting areas 12A, 12B for fastening the comfort module 1A to the

Backrest frame 20. In the present case, there are two bearing points, each in the form of a screw point 12A (see in particular FIGS. 1D and 3B) on the support 10A, specifically on the shield 108. At these bearing points, the shield 108 is pivotable on the backrest frame, forming the third axis of rotation D3 20, in the present case on corresponding receptacles 21 of the holders 24.

Below these bearing points, the carrier has further assembly areas 12B, in the present case in the form of a plurality of latching elements 12B for latching connection with a latching element 22 formed or attached to the backrest frame 20. As can be seen in particular in FIG Shield 108 facing away) the lower end of the carrier 10A arranged. Several latching elements 12A are arranged on the side cheeks 104. The locking elements 12B each include, for example, a pair of locking hooks and can be injection molded onto the carrier 10A by means of injection molding.

The backrest frame 20 comprises a longitudinal member 200 (in the present case in the form of a stabilizing tube) and the retractor tower 201 (or alternatively a further longitudinal member), which are connected to one another by an upper cross member 202 and a lower cross member 203. In the present case, the longitudinal member 200 and the upper cross member 202 are formed together in one piece and L-shaped (see in particular FIG. 4). For example, the side member 200 and the cross member 202 are each tubular. The backrest frame 20 is optionally covered for reinforcement. An additional retractor tower is optionally provided instead of the longitudinal beam 200, e.g. if the vehicle seat is part of a rear bench seat with several seats.

The backrest frame 20 is pivotably connected to a seat frame 30 of a seat part 3 of the vehicle seat F via fittings 4 for the inclination adjustment about a pivot axis S. The backrest frame 20 comprises or consists of a metal, in particular steel. No load-bearing steel structures are provided above the shoulder area.

All comfort functions of the backrest 2 above the fittings 4 are provided by the comfort units 11A-11C, 11E-11G mounted on the carrier 10A. No fastening points for separate comfort units are therefore provided on the backrest frame 20. Forces acting on the backrest frame 20, e.g. in the event of a crash, via the safety belt on the backrest frame 20, can be diverted via the fittings 4 essentially without affecting the carrier 10A. Furthermore, forces can be introduced into the backrest frame 20 via the comfort module 1A and derived therefrom via the fittings 4, e.g. forces acting on the headrest 13. The backrest frame 20 thus serves to absorb such forces and to suspend the comfort module 1A. In contrast, the comfort module 1A does not serve as a support unit for absorbing all relevant forces.

4 it can also be seen that the carrier 10A and the support surface 100 of the carrier 10A extend over a predominant part of a length of the backrest frame 20 from the seat part to the upper end (or its entire length). FIGS. 5A-5D show a comfort module 1B, which comprises the carrier 10A according to FIGS. 1A-4, but, in contrast to the comfort module 1A shown there, does not have a headrest. In a vehicle seat with the comfort module 1B according to FIGS. 5A-5D, a headrest is mounted on the backrest frame, optionally adjustable, or alternatively attached to the backrest frame. As a result, even fewer forces are transmitted through the comfort module 1B, since forces are also introduced into the backrest frame on the headrest without flowing through the comfort module 1B.

FIGS. 6A-6E show a comfort module 1C with a carrier 10B, which in part corresponds to the carrier according to FIGS. 1A-5D, but, in contrast to this, has no side walls. In particular, the backrest head 101 with the shield 108 and the comfort units 11 B, 11 E, 11 F and 11G mounted thereon are designed analogously to the comfort module according to FIGS. 1A-4.

The brackets 24 are also mounted on the comfort module 1C according to FIGS. 6A-6E. The bearing part 114 of the backrest head adjustment 11G is mounted pivotably on the respective bracket 24. For mounting the comfort module 1C on the backrest frame 20 (e.g. on the upper cross member 202), the brackets 24 can be attached to the backrest frame 20, e.g. welded to it. Only two assembly areas have to be assembled in the area of the backrest head, which further reduces the number of assembly steps.

At the lower end of the carrier 10B, a mounting area 12A with several screw points is arranged, in the present case as a holding plate. In addition, the comfort module 1C can be mounted, in particular screwed, on the lower cross member 203 of the backrest frame 20, for example.

The comfort module 1C also includes an electromechanical massage unit 11D as a further comfort unit. This is also suspended from the wire 15 of the lumbar support adjustment 11A. Such a massage unit can optionally also be provided and arranged on the comfort modules 1A, 1B according to FIGS. 1A to 5D. No changes to the backrest frame 20 are necessary for this.

Depending on requirements, individual comfort units 11A-11G can be provided on the respective comfort module 1A-1C or left out. The comfort modules 11A-11G are each connected to the carrier 10A; 10B can be screwed or clipped onto it. The carrier 10A; 10B takes on the supporting function for some or all of the Comfort units 11A-11G. As a result, some or all of the comfort units 11A-11G can be designed in a particularly simple manner, for example do not require their own housing. As a result, manufacture can be further simplified and the structure of the vehicle seat F can be made leaner. A weight reduction is also possible.

In addition to the comfort units 11A-11G shown in the figures, further comfort units can be provided, for example seat heating or parts thereof, in particular an interface, ventilation with one or more fan motors and / or a climate mat. Furthermore, ventilation ducts, a trim suspension and / or an upholstery foam support can be provided on the carrier 10A, 10B.

List of reference symbols

1A-1C comfort module

10A; 10B carrier

100 support area

101 backrest head

102 trunk section

103 Solid body joint

104 sidewall section

105 stiffening ribs

106 Screw dome 108 Sign 11A Lumbar support adjustment (comfort unit) 11B Headrest adjustment (comfort unit) 11C Side cheek adjustment (comfort unit) 11D Massage unit (comfort unit) 11E Loudspeaker unit (comfort unit) 11F Neck support adjustment (comfort unit) 11G Backrest head adjustment (comfort unit) 110 Rail 111 Motor 112 Adjustment part

113 electrical conduction

114 Bearing part 12A screw point (assembly area) 12B locking element (assembly area)

13 headrest

14 neck support

15 wire 2 backrest

20 backrest frame (support frame)

200 side members

201 retractor tower

202 cross member

203 cross member

21 Recording

22 locking element 24 bracket

25 Belt exit point 3 seat part

30 seat frame 4 fittings

D1-D3 axis of rotation

F vehicle seat

S swivel axis

Claims

1. Comfort module (1A-1C) for a vehicle seat (F), comprising: a carrier (10A; 10B) and a plurality of operable comfort units (11A-

11G), the carrier (10A; 10B) with the comfort units (11A-11G) preassembled thereon being mountable on a support frame (20) of the vehicle seat (F).

2. comfort module (1A-1C) according to claim 1, characterized in that at least some of the comfort units (11A-11G) can be set independently of one another.

3. comfort module (1A-1C) according to claim 1 or 2, characterized in that at least some of the comfort units (11A-11G) comprise electrical components.

4. comfort module (1A-1C) according to claim 3, characterized in that at least one electrical line (113) for at least one of the electrical components on the carrier (10A; 10B) is guided.

5. comfort module (1A-1C) according to any one of the preceding claims, characterized in that one of the pre-assembled comfort units (11A) is designed as a lumbar support adjustment and another of the pre-assembled comfort units (11B-11F) as a headrest adjustment, as a side cheek adjustment, as a massage unit, as Loudspeaker unit, is designed as a neckrest adjustment or as a backrest head adjustment.

6. comfort module (1A-1C) according to any one of the preceding claims, characterized in that one of the pre-assembled comfort units (11 B) is designed as a headrest adjustment and is attached to the carrier (10A) via rails (110).

7. comfort module (1A-1C) according to any one of the preceding claims, characterized in that the carrier (10A; 10B) forms a body section (102) and a backrest head (101), one of the preassembled comfort units (11G) being designed as a backrest head adjustment and is set up to change an inclination of the backrest head (101) relative to the torso section (102).

8. comfort module (1A-1C) according to claim 7, characterized in that the backrest head (101) and the fuselage section (102) are connected to one another via a solid body joint (103).

9. comfort module (1A-1C) according to claim 7 or 8, characterized in that the comfort unit (11G) designed as a backrest head adjustment has three axes of rotation (D1- D3) and a motor (111), the motor (111) being set up for this purpose to change the distance between two of the three axes of rotation (D1-D3) in order to adjust the inclination of the backrest head (101) relative to the torso section (102).

10. comfort module (1A-1C) according to one of the preceding claims, characterized in that the carrier (10A; 10B) provides a support surface (100) for supporting the back of a seat occupant and extends over a predominant part of a length of the support frame (20) extends.

11. comfort module (1A-1C) according to any one of the preceding claims, characterized in that the carrier (10A; 10B) comprises or consists of a plastic.

12. comfort module (1A-1C) according to any one of the preceding claims, characterized in that the carrier (10A; 10B) is made of organic sheet.

13. comfort module (1A-1C) according to any one of the preceding claims, characterized in that the carrier (10A; 10B) has stiffening ribs (105).

14. Comfort module (1A-1C) according to one of the preceding claims, characterized in that the carrier (10A; 10B) has at least one latching element (12B) for a latching connection with a latching element (22) on the support frame (20).

15. Backrest (2) for a vehicle seat (F), comprising a support frame (20) on which the comfort module (1A-1C) is mounted according to one of the preceding claims.

16. The vehicle seat (F), comprising the backrest (2) according to claim 15, wherein the support frame (20) of the backrest (2) is pivotably mounted on a seat part (3) of the vehicle seat (F) via fittings (4).

17. The vehicle seat (F) according to claim 16, characterized in that all comfort functions of the backrest (2) are provided by comfort units (11A-11G) mounted on the carrier (10A; 10B).

18. A method for producing a vehicle seat (F), comprising:

Providing a carrier (10A; 10B);

Mounting a plurality of operable comfort units (11A-11G) on the carrier (10A;

10B) for the production of a comfort module (1A-1C) and

Assemble the comfort module (1A-1C) with the pre-assembled

Comfort units (11A-11G) on a support frame (20) of the vehicle seat (F).