WO2022224182A1

WO2022224182A1 - Seat part and vehicle seat, in particular motor vehicle seat

Info

Publication number: WO2022224182A1
Application number: PCT/IB2022/053726
Authority: WO
Inventors: Ahmed OUALKADI; Lennart Svensson; Sebastian Evels
Original assignee: Adient Us Llc
Priority date: 2021-04-21
Filing date: 2022-04-21
Publication date: 2022-10-27
Also published as: WO2022224181A1; WO2022224183A1; DE112022002291A5; DE112022002241A5

Abstract

The invention relates to a seat part (2) for a vehicle seat (1), in particular a motor vehicle seat, having a seat cushion shell (8) which is designed as a module support (6) for supporting various modules (7), the module support (6) having an integrated interface (10) which is designed to support a kinematic system of a module (7) designed as a seat cushion depth adjuster (14). The invention also relates to a vehicle seat (1) having a seat part (2) of said type.

Description

SEAT PART AND VEHICLE SEAT, PARTICULARLY MOTOR VEHICLE SEAT

The invention relates to a seat part with the features of the preamble of claim 1 and a vehicle seat, in particular a motor vehicle seat with the features of the preamble of claim 16.

State of the art

Vehicle seats known from the prior art have a seat part and/or a backrest.

DE 102007 017 001 A1 discloses a seat cushion shell for a seat part of a vehicle seat, which includes a cushion shell section that has a cushion receiving surface and a side protection section that is in one piece with the cushion shell section, the cushion shell section and the integrated side protection section being made of plastic .

DE 202011 105 603 U1 discloses a backrest structure for a backrest of a vehicle seat, with two backrest side bars, an upper crossbar and a lower crossbar, which connect the two backrest side bars with one another, with at least one of the backrest side bars at least partially having a profile cross-section in the form of a C Profile having a web, a first flange, a second flange, a first edge flange and a second edge flange.

task

The invention is based on the object of improving a seat part of the type mentioned at the outset and a vehicle seat of the type mentioned at the outset, in particular a seat part or to provide a vehicle seat for an optimized assembly of components or assemblies on the seat part or on the vehicle seat.

solution

This object is achieved according to the invention by a seat part having the features of claim 1 and by a vehicle seat, in particular a depth-adjustable vehicle seat, in particular a motor vehicle seat, having the features of claim 16.

Advantageous configurations, which can be used individually or in combination with one another, are the subject matter of the dependent claims.

A seat part according to the invention for a vehicle seat, in particular a motor vehicle seat, has at least one seat cushion shell, which is designed as a module carrier or component carrier for carrying different modules and/or components, in particular different functional modules and/or structural modules, the module carrier having an integrated interface , which is designed to support a kinematic system designed as a seat cushion depth adjuster module.

The advantages achieved with the invention are, in particular, that the integration of an interface for supporting a kinematics of a module designed as a seat cushion depth adjuster provides a seat part for a vehicle seat that can be manufactured in an optimized manner, in particular assembled in a particularly cost-efficient and time-efficient manner, in particular pre-assembled, and has few components. In particular, due to such an integration of an interface for carrying a kinematics of a seat cushion depth adjuster, separate complex adjustment components, such as separate rails, sliding elements and guide elements, are omitted. Due to the reduction in parts, tool costs, transport costs and assembly costs are also reduced. The seat part is designed to be more compact and lighter. In addition, testing effort and quality control are optimized and less expensive. Furthermore, the reduction in components also improves the recyclability. In one possible embodiment, the integrated interface is arranged in a front area of the seat cushion shell in the longitudinal direction. The first integrated assembly section is arranged in the front area between two longitudinal sides of the seat cushion shell.

As an integrated interface, the seat cushion shell can comprise a first integrated mounting section for the seat cushion depth adjuster. For example, the first integrated assembly section is introduced into an upper side of the seat cushion shell, in particular moulded, moulded, injected, embossed, pressed in, pressed in and/or reshaped. The first integrated assembly section forms stationary counter-kinematics for the seat cushion depth adjuster.

The seat cushion depth adjuster has, for example, on a side facing the integrated interface, a counter-assembly section that corresponds to the first integrated assembly section. In particular, the seat cushion depth adjuster is mounted longitudinally movable relative to the seat part by means of the first integrated assembly section and the counter-assembly section corresponding thereto. The seat cushion depth adjuster can be moved in and out along an adjustable length relative to the stationary integrated interface.

The first integrated assembly section comprises, for example, at least one integrated rail section, one integrated latching section and/or one integrated guide section. The locking section serves in particular as a locking device for the seat cushion depth adjuster.

According to a development, the seat cushion depth adjuster has at least one gripping element and/or one operating element for unlocking and locking. The handle element and/or the operating element are/is coupled to the locking device for fixing the seat cushion depth adjuster relative to the seat part.

In addition, the seat cushion shell can have a variety of integrated attachment areas, each universal to the form-fitting and/or non-positive connection of the seat cushion shell with other different modules.

In particular, other different modules or add-on parts, in particular functional modules and/or structural modules, can be mounted directly on the seat part, in particular the seat cushion shell, without additional separate fastening means. Such a seat part pre-assembled with modules and/or add-on parts can be easily fastened to a metal structure as a pre-assembled unit. Thus, an assembly on a main assembly line is simplified and corresponding stations can be omitted due to fewer parts. A so-called just-in-time process is thus significantly relieved and has improved cycle times due to fewer parts and direct assembly on the integrated fastening areas of the seat part.

In one possible embodiment, the seat cushion shell with the integrated fastening areas, in particular the module carrier, is formed from at least one base material by pressure forming and/or injection molding. For example, the seat cushion shell is made from a thermoplastic material, for example by an injection molding process or by a pressure forming process. In addition, the seat cushion shell, in particular the module carrier, can be reinforced by means of an insert and/or an element made of a fiber-reinforced plastic (organic sheet) or other means. The seat cushion shell, in particular the module carrier, can be formed as a one-component part or a two-component part made from at least two different materials, in particular at least two different plastic materials and/or from a plastic material and a metal material.

For example, the integrated fastening areas are formed on an upper side, a lower side and/or in the area of longitudinal sides and/or transverse sides of the seat cushion shells. In particular, the fastening areas are introduced into the seat cushion shell, for example moulded, moulded, injected, embossed, pressed in, pressed in and/or reshaped. A further aspect of the invention provides that the seat cushion shell is designed as at least one further module containing at least one seat part upholstery, a spring mat section, a damping element, a spring element, a side bolster adjuster, a side skirt, a light source, a control panel, a switch, a fan and /or wear a ventilation system.

The integrated fastening areas are designed, for example, as integrated assembly sections for the various modules and/or add-on parts. The integrated attachment areas, in particular the integrated assembly sections, include, for example, a number of integrated coupling interfaces, integrated attachment interfaces, integrated holding interfaces and/or integrated module interfaces. At least one node element and/or one coupling element, such as a rotary joint, for example, is or is provided as an integrated coupling interface. Channels, grooves, molded beads, shaped pieces, profile indentations, embossing, molded and/or traversing bushings, through-openings and/or recesses or other similar means are provided as integrated holding interfaces, for example. Integrated attachment interfaces include, for example, attachment channels, attachment hooks, snap-in elements,

Wedge elements, nut elements, threaded elements, clip elements, eyelets and/or fixing elements or other similar means are provided. For example, rail elements, guide elements, channels, openings and/or joints or other similar means are provided as integrated module interfaces.

A development provides that the seat cushion shell has at least two integrated different shell attachments for variable attachment of the seat cushion shell, in particular for movable attachment or static attachment of the seat cushion shell to a carrier or to a body. A first shell fastening is designed, for example, as one or more integrated assembly element(s), in particular fastening hooks, for a static arrangement of the seat cushion shell. A second shell attachment is designed, for example, as an integrated joint element, in particular as a rotary joint for a movable, in particular rotatable, arrangement of the seat cushion shell. The seat cushion shell can have a seat area, in particular a flat area, which extends at least between the two longitudinal sides. The first integrated assembly section is arranged, for example, in a depression in the seat area or in a concavity in the seat area.

Because the seat part has a seat cushion shell and/or the backrest has a backrest support, a fully mountable vehicle seat is provided.

The seat part can have a seat part cushion. The seat part upholstery can have a foam part covered with a cover. The backrest can have a backrest cushion. The backrest cushion can have a foam part covered with a cover. The backrest can have a backrest frame. A module carrier can be fixed in the backrest frame.

The seat cushion shell can be made of plastic. The seat cushion shell can be manufactured using an injection molding process. The seat cushion shell can have hook-shaped mounting elements, by means of which the seat cushion shell can be mounted in the seat part frame.

The seat cushion shell can have at least one mounting section. The mounting section can be designed as an opening bordered by a flange, in which a spring element can be inserted. The spring element can be fixed to the flange of the seat cushion shell. The spring element can be made of plastic.

The spring element can be produced by means of an injection molding process. The spring element is preferably produced together with the seat cushion shell in a joint injection molding process. The spring element and the seat cushion shell can be produced together as a common component by means of a two-component injection molding process or a multi-component injection molding process.

A mounting section, in particular the first mounting section, for a seat cushion depth adjuster can be formed integrally in the seat cushion shell. Of the The first mounting section for the seat cushion depth adjuster can have a rail section. The first mounting section for the seat cushion depth adjuster can have a latching section. The first mounting section for the seat cushion depth adjuster can have a guide section. The first assembly section for the seat cushion depth adjuster is used to assemble a kinematic mechanism for adjusting the seat cushion depth on the seat cushion shell.

As a further assembly section, the seat cushion shell can have a round assembly opening for assembly of the fan. The seat cushion shell can have a plurality of inwardly protruding projections, which are arranged in the mounting opening, distributed evenly around the circumference. The fan can have a round shape. The ventilator can have several eyelets, which are distributed evenly around the circumference of the ventilator. The fan can be clipped into the mounting opening by means of the eyelets and the projections. In this way, the fan can be fixed to the seat cushion shell without screws.

A buffer can be arranged between the fan and the mounting opening of the seat cushion shell. The buffer can serve to reduce vibrations. The buffer may have a round shape. The buffer can have a number of eyelets which are distributed evenly around the circumference of the buffer.

The buffer can be produced as one component together with the seat cushion shell by means of a two-component injection molding process or multi-component injection molding process. The buffer can by means of a

Two-component injection molding process or multi-component injection molding process can be produced together with the fan as one component.

The seat cushion shell can have distribution channels extending from the assembly opening. The distribution channels may be disposed in a surface of the seat cushion pan and integrally formed in the seat cushion pan. By means of the distribution ducts, the air that can be conveyed by the fan can be distributed behind a foam part of the seat part upholstery of the seat part or be directed to specific areas. The seat cushion shell preferably has at least one opening which serves to receive a cover fastening element. The cover fastening element can be fixed to the seat cushion shell by inserting it into the opening and then rotating it by 90° using the principle of a so-called bayonet lock. To secure the cover fastening element in the fixed position, the seat cushion shell can have two wedges in the region of the opening, which secure the cover fastening element on a side (underside) of the seat cushion shell opposite the cover fastening element. The trim cover fastener may include hooked portions protruding from a top surface of the seat cushion pan. Corresponding counter-elements connected to a cover of the seat cushion can be connected in the hook-shaped sections.

The seat cushion shell can have integrally formed support sections which serve to form side bolsters or on which provided side bolsters of the seat part can be supported.

In the area of the support sections of the seat cushion shell, side bolster adjusters can be provided for individual adjustment of the side bolsters of the seat part. To attach the side bolster adjusters, the seat cushion shell can have two projections on a lateral edge as an integrated assembly section. The side bolster adjuster can be fixed to the seat cushion shell by means of a holding element. The holding element can be hung on the projections and fixed, for example, at an end section of the holding element opposite the projections by means of at least one cover fastening element or an alternative fixing element on the seat cushion shell.

The seat cushion shell can have at least one holding opening, in particular two holding openings, in the area of its outer edge. A side skirt can be mounted on the seat cushion shell by means of at least one hook section cooperating with the holding opening, in particular two cooperating hook sections. The side skirt may have a control panel. Several switches can be arranged in the control panel. Preference is on one of the Side skirt with control panel On the opposite side of the seat part, another side skirt without a control panel is arranged mirror-symmetrically on the seat cushion shell.

Sections of the seat cushion shell can have a peripherally arranged covering fastening channel. The cover attachment channel can have hooks in sections, which secure a counter element attached to the cover of the seat part upholstery in the cover attachment channel.

The seat cushion shell may have an integrated mounting hole. A lighting means can have a hook element and a clip element lying opposite the hook element. The illuminant can be fastened in the mounting opening by means of the hook element and the clip element. In the case of a seat cushion shell mounted in a vehicle seat, the lighting means can serve to illuminate a foot area for a vehicle occupant seated behind the vehicle seat.

Mounting sections in the form of holding means can be provided on an underside of the seat cushion shell in order to fix various lines. The holding means can be a so-called omega clip, for example.

Routing channels can be provided on the underside of the seat cushion shell in order to route various lines. The laying channels can be formed by means of ribs protruding from the seat cushion shell. The lines can be electrical lines of a cable harness. The lines can be pneumatic lines.

The seat cushion shell can additionally have fixing elements, by means of which connecting means of sensor housings or valve housings that are designed to cooperate accordingly can be fastened.

A reinforcement section can be used for local reinforcement of the seat cushion shell. The reinforcement section can have a rib structure formed in the seat cushion shell. The reinforcement section can be a local to the Underside or top of the seat cushion shell applied reinforcement made of a fiber composite plastic, in particular a glass fiber reinforced plastic. The seat cushion shell can have an overmoulded carrier body, in particular made of metal, in the reinforcement section. Hollow reinforcement sections in the seat cushion shell can be produced by means of internal pressure injection molding.

An alternative embodiment of a side skirt preferably has no control panel arranged on the side of the seat part. To reinforce the side skirt, a rib structure can be arranged between the side skirt and a seat kinematic mechanism that can be concealed by the side skirt or other devices for providing further seat functions. The side skirt can also have hook sections which can be fixed in the holding openings of the seat cushion shell. A control panel for actuating seat functions can be arranged on an upper side of an outer edge portion of the seat cushion shell. The control panel can be a touch-sensitive control panel.

A vehicle seat according to the invention, in particular depth-adjustable, comprises at least the seat part described above and a further seat part, the two seat parts being seat depth-adjustably connectable or connected to one another by means of the seat cushion depth adjuster. In addition, the vehicle seat can have a backrest which can be or is arranged statically or movably, in particular pivotably, on the seat part.

The further seat part can be moved in and out along an adjustable length, in particular by means of the seat cushion depth adjuster. For example, the further seat part is mounted on the seat cushion shell in a longitudinally movable manner relative to the seat part by means of the seat cushion depth adjuster.

According to a possible embodiment, the seat cushion depth adjuster can form a supporting part of the additional seat part. In addition, the further seat part can comprise at least one seat part padding, which can be arranged or is arranged on the seat cushion depth adjuster, in particular on its supporting part. The carrying part is formed for example as a plastic carrier. The supporting part has in particular a plate shape or a frame shape.

Advantages of the vehicle seat described above can be that the vehicle seat according to the invention can be manufactured with a reduced number of components. At the same time, the weight of the vehicle seat can be reduced compared to a conventionally manufactured vehicle seat with an identical range of functions. Due to a reduced number of components to be assembled, the number of work steps and/or tools required to assemble the vehicle seat is also advantageously reduced, which further affects assembly time and quality control and thus also the manufacturing costs of the vehicle seat.

In summary and to put it in other words, a component carrier for a seat surface and/or a backrest can be introduced as the seat cushion shell.

The component carrier can be made of a thermoplastic material, for example by an injection molding process. The component support can be a structural support element of the seat. The component carrier can be reinforced in sections by means of an insert, an element made of a fiber-reinforced plastic (organic sheet) or other means.

The component carrier can be a one-component component or a two-component component. In the case of a two-component part, an additional soft component can be provided in order to enable a higher degree of functional integration. For example, vibrations can be better decoupled and/or the flexibility of individual areas can be adjusted more individually.

Figures and embodiments of the invention

The invention is explained in more detail below on the basis of advantageous exemplary embodiments illustrated in the figures. However, the invention is not limited to these exemplary embodiments. Show it: 1: schematically a vehicle seat according to the invention,

Fig. 2: schematically a seat cushion shell of a seat part according to the invention of the vehicle seat of Fig. 1 in a view from above,

Fig. 3: schematically a seat cushion shell from Fig. 2 in a perspective view from below,

Fig. 4: schematically a seat part frame of the seat part of Fig. 3,

Fig. 5: schematic of a seat cushion shell with some attachments,

6: schematically a seat cushion shell with a spring mat section having at least one spring element,

7: schematically a spring mat section having at least one spring element,

Fig. 8: schematically an enlarged detail of the seat cushion shell of Fig. 6 in the area of the spring mat section,

9: a detail of the seat cushion shell from FIG. 5 in the area of a mounting section for a seat cushion depth adjuster,

10 shows a detail of the seat cushion shell from FIG. 2 in the area of assembly openings for a spring mat section and a fan,

Fig. 11: Detail of the assembly opening for the fan according to Fig.

10

Fig. 12: schematic of a buffer for a fan,

Fig. 13: schematic of a fan, Fig. 14: detail of the assembly opening with inserted fan according to Fig. 10 and 13,

Fig. 15: a sectional view through the assembly opening according to Fig. 14,

Figures 16-18: various representations of a reference fastening element,

19: a schematic view of the seat cushion shell from the front,

Figures 20-22: various representations of the seat cushion shell and a side bolster adjuster,

Figures 23-26: various representations of the seat cushion shell and a side skirt,

27: a schematic view of the seat cushion shell from diagonally below with a cover attachment channel,

Figures 28-30: various representations of the seat cushion shell and a lamp,

Figures 31-36: various representations of the seat cushion shell in the area of installation sections of lines,

37: a schematic view of the seat cushion shell from an angle from below with a reinforcement section, and

FIGS. 38-40: various representations of the seat cushion shell and an alternative embodiment of a side skirt.

Corresponding parts are provided with the same reference symbols in all figures. The vehicle seat 1 shown schematically in FIG. 1 has a seat part 2 and is described below using three spatial directions running perpendicular to one another. In the case of a vehicle seat 1 installed in the vehicle, a longitudinal direction x runs largely horizontally and preferably parallel to a longitudinal direction of the vehicle, which corresponds to the usual direction of travel of the vehicle. A transverse direction y running perpendicularly to the longitudinal direction x is likewise aligned horizontally in the vehicle and runs parallel to a vehicle transverse direction. A vertical direction z runs perpendicular to the longitudinal direction x and perpendicular to the transverse direction y. In the case of a vehicle seat 1 installed in the vehicle, the vertical direction z runs parallel to the vertical axis of the vehicle.

The position information and directional information used, such as front, rear, top, bottom and side, refer to a viewing direction of an occupant seated in the vehicle seat 1 in a normal seating position, with the vehicle seat 1 installed in the vehicle in a usage position suitable for passenger transport with the backrest upright 4 and, as usual, is aligned in the direction of travel. However, the vehicle seat 1 according to the invention can also be installed in a different orientation, for example transversely to the direction of travel.

The seat part 2 has a seat part upholstery 2b, having a foam part covered with a cover. The backrest 4 has a backrest cushion 4b, having a foam part covered with a cover with or without an integrated carrier element and/or backrest frame 4a. The backrest 4 can be fixed. Alternatively, the backrest 4 can be pivoted to the seat part 2 by means of a backrest adjuster 3 .

In addition, the vehicle seat 1 can be designed to be longitudinally adjustable. For this purpose, the vehicle seat 1 can include a longitudinal adjuster 5, in particular a rail system. The seat part 2 can be arranged and fastened on the longitudinal adjuster 5, as shown, or on a seat support or on a body unit. The vehicle seat 1 can include a further seat part 50 . The further seat part 50 serves in particular to adjust the seat depth for a thigh extension, optionally or additionally a calf support and/or a foot support. The seat part 2 and the further seat part 50 can be connected or connected to one another in a seat depth-adjustable manner by means of a seat cushion depth adjuster 14 (shown in FIG. 5). The further seat part 50 can be moved in and out along an adjustable length, in particular by means of the seat cushion depth adjuster 14 . The further seat part 50 is mounted longitudinally movable relative to the seat part 2 by means of the seat cushion depth adjuster 14, so that a seat cushion depth can be changed.

The seat cushion depth adjuster 14 has at least one grip element 51 for its manual unlocking, locking and/or actuation. Additionally or alternatively, the seat cushion depth adjuster 14 can have an operating element, in particular a switch 22d of a control panel 22c (shown in FIG. 4) for electrically unlocking, locking and/or actuating it.

FIGS. 2 and 3 show a seat cushion shell 8 without add-on parts as an exemplary embodiment of a seat part 2 of the vehicle seat 1 according to the invention.

Figures 4 and 5 show the seat cushion shell 8 with various modules 7 as add-on parts and a seat part frame 2a of the seat part 2.

FIG. 2 shows the seat cushion shell 8 as a module carrier 6 in a schematic view from above.

The seat cushion shell 8 is designed as a module carrier 6 for carrying various modules 7 (shown in FIGS. 4-9, 13-40).

The seat cushion shell 8 comprises a multiplicity of integrated fastening areas 9, which are each universally designed for the positive and/or non-positive connection of the seat cushion shell 8 with the various modules 7 (shown in FIGS. 4-9, 13-40). The seat cushion shell 8 has at least one integrated interface 10 which is designed to support a kinematic system of a module 7 designed as a seat cushion depth adjuster 14 (shown in FIG. 5).

The seat cushion shell 8 is formed with the integrated fastening areas 9 from at least one base material by pressure forming and/or injection molding. For example, the seat cushion shell 8 and thus the module carrier 6 with the integrated fastening areas 9 are manufactured as an injection molded part from at least one base material. For example, the module carrier 6 of the seat cushion shell 8 is made of a thermoplastic material, for example by an injection molding process or by a pressure forming process. In addition, the module carrier 6 can be reinforced by means of an insert and/or an element made of a fiber-reinforced plastic (organic sheet) or other means. The module carrier 6 can be formed as a one-component component made of a base material or as a two-component component made of at least two different materials, in particular at least two different plastic materials and/or a plastic material and a metal material.

The integrated fastening areas 9 are formed on an upper side 2c, a lower side 2d (shown in FIG. 3) and/or in the area of longitudinal sides 2e and/or transverse sides 2f of the seat cushion shells 8.

The module carrier 6 of the seat cushion shell 8 is designed in particular as at least one further module 7, at least one seat part upholstery 2b (shown in Figures 1 and 4), a spring mat section 12, a spring element 11 with incisions 12a (shown in Figure 6), a side bolster adjuster 20 (shown in Figure 6). in Figures 21, 22), a side skirt 22, 40 (shown in Figures 24-26, 38-40), an illuminant 26 (shown in Figures 28 to 30), a control panel 40b (shown in Figure 40), a switch 22d (shown in Figure 4), a fan 16 (shown in Figures 13 to 15) and/or a ventilation system 13 (shown in Figure 2). The module carrier 6 has at least two different integrated shell fasteners 6.1 and 6.2 for the variable fastening of the seat cushion shell 8 to the seat part frame 2a (shown in FIG. 4).

A first shell fastening 6.1 comprises, for example, two integrated fastening hooks for a static seat cushion shell 8. A second shell fastening 6.2 is designed, for example, as an integrated joint element for a movable seat cushion shell 8. The second shell attachment 6.2 is designed, for example, as a through-opening for a bearing journal or a rotary shaft. Depending on the type of fastening, the seat cushion shell 8 can thus be installed and fastened either as a movable seat cushion shell 8 or as a static seat cushion shell 8 .

The seat cushion shell 8, in particular its module carrier 6, can have at least one reinforcement region 15, at least in some areas, which extends in the longitudinal direction and/or transverse direction of the seat cushion shell 8. The reinforcement area 15 is formed, for example, by longitudinal ribs and/or transverse ribs or other suitable reinforcement elements such as webs, profiles, matrices. In particular, reinforcement areas 15 are provided in those areas of the module carrier 6 which are exposed to strong mechanical stresses, for example in the area of the shell fastenings 6.1, 6.2.

The seat cushion shell 8 comprises a first integrated mounting section 14a for the seat cushion depth adjuster 14 (shown in FIG. 5), which is introduced into the upper side 2c of the seat cushion shell 8. The first integrated mounting section 14a has at least one integrated rail section 14b, an integrated latching section 14c and/or an integrated guide section 14d.

The seat cushion shell 2 has an in particular flat seating area 2.1 which extends at least between the two longitudinal sides 2e and the two transverse sides 2f.

The first integrated mounting section 14a is in a longitudinal direction x front area of the upper side 2c and between the two longitudinal sides 2e of the Seat cushion shell 2 arranged. The first integrated mounting section 14a is arranged in a recess 2.2 of the seat area 2.1.

The seat area 2.1 has a second integrated mounting section 12b for the spring mat section 12, in particular the spring element 11 with incisions 12a (shown in Figure 6), in a rear area of the upper side 2c in the longitudinal direction x and between the two longitudinal sides 2e of the seat cushion shell 2. The second integrated assembly section 12b is arranged in an elevation 2.3 of the flat seating area 2.1. The second integrated mounting section 12b is formed as a mounting opening 12d with a peripheral flange 12c.

The spring element 11 with the incisions 12a can be arranged as a spring mat section 12 in a form-fitting and/or force-fitting manner and can be releasably fixed in the assembly opening 12d.

The peripheral flange 12c forms the fastening area 9 for the spring element 11 with the seat area 2.1. For example, the seat area 2.1 and the spring element 11 can be detachably connected to one another in a form-fitting manner in the attachment area 9. For example, the seat area 2.1 and the spring element 11 can be releasably connected to one another by means of clip connections. For this purpose, the seat area 2.1 and the spring element 11 have, for example, corresponding latching elements, for example latching openings 41 in the circumferential flange 12c and latching pins 42 on the spring element 11 (shown in FIG. 8) or vice versa. The spring element 11 can be clipped onto the flange 12c of the seat area 2.1 by means of the locking elements.

Additionally or optionally, at least one third integrated assembly section 21 for the side bolster adjuster 20 (shown in Figures 21, 22) and/or the side skirt 22, 40 (shown in Figures 24, 25, 38, 39) may be provided.

Additionally or optionally, at least a fourth integrated assembly section 17 (shown in Figure 2) for the fan 16 (shown in Figures 13 to 15) and/or the ventilation system 13 (Shown in Figure 2) may be provided. The fourth integrated assembly section 17 is formed continuously on the upper side 2c of the flat seating area 2.1 and the flat seating area 2.1. The fourth integrated assembly section 17 comprises, for example, in the seating area 2.1 an assembly opening 16a for the fan 16 and on the upper side 2c as a ventilation system 13 a duct system whose ducts 13.1 open into the assembly opening 16a.

Additionally or optionally, in the flat seating area 2.1 as a fifth integrated assembly section 43 for the side skirt 22 (shown in Figure 26)

Retaining openings 22a may be provided.

Additionally or optionally, several openings 18a for cover fastening elements 18 (shown in Figure 22), for example retaining clips, can be provided in the flat seat area 2.1 as a sixth integrated assembly section 44 for a seat cover, not shown, as a fastening area 9 of the seat cushion shell 8.

The integrated fastening areas 9 in the integrated assembly sections 12b, 14a, 17, 21, 43, 44 of the seat part 2 designed as a seat cushion shell 8 comprise, in summary, different types of fastenings for the various modules 7, for example integrated coupling interfaces, integrated fastening interfaces, integrated holding interfaces and/or or integrated module interfaces.

FIG. 3 shows the seat cushion shell 8 as a module carrier 6 in a schematic view from below onto the lower side 2d.

The lower side 2d has a plurality of reinforcement areas 15. FIG. The reinforcement areas 15 are formed, for example, by longitudinal ribs and/or transverse ribs.

The seating area 2.1 is delimited by the long sides 2e and the short sides 2f. A plurality of openings 18a are arranged in a line at a distance from one another and parallel to the respective longitudinal side 2e.

The holding openings 22a are arranged on an outer side of the longitudinal sides 2e.

The first shell attachment 6.1 is designed as an arcuate hook. The second shell attachment 6.2 is designed as a through hole.

The mounting section 12b is formed by the mounting opening 12d with the circumferential flange 12c with the latching openings 41.

To control electrical and/or pneumatic and/or hydraulic modules 7 of the seat cushion shell 8, laying channels 28a for lines 28 (shown in FIG. 33) are introduced on the lower side 2d, in particular moulded, injection molded, molded on or the like.

FIG. 4 shows a seat part frame 2a of the seat part 2 from FIG. The seat cushion shell 8 designed as a module carrier 6 is arranged and fixed on the seat part frame 2a. The seat cushion shell 8 is arranged and fixed on the longitudinal adjuster 5 via the seat part frame 2a.

On the seat cushion shell 8 designed as a module carrier 6, as modules 7, for example, one or more seat part upholstery 2b, the side skirt 22 with control panel 22c and switch 22d as well as a side panel 45 are attached by means of the associated fastening areas 9 in the associated assembly sections 12b, 14a, 17, 21, 43 , 44 can be fixed in a detachable manner, as previously described by way of example with reference to FIGS.

Figure 5 shows a designed as a module carrier 6 seat cushion shell 8 of the seat part 2 of the vehicle seat 1 with further attachments designed as modules 7, such as the seat cushion depth adjuster 14, the side bolster adjuster 20 and the side skirt 22 with the control panel 22c. On a side facing the integrated interface 10 (shown in FIG. 2), the seat cushion depth adjuster 14 has a counter-assembly section 14g that corresponds to the first integrated assembly section 14a.

The seat cushion depth adjuster 14 is mounted longitudinally movable relative to the seat part 2 by means of the first integrated assembly section 14a (shown in FIGS. 2 and 9) and the counter-assembly section 14g corresponding thereto.

The latching section 14c, in particular an integrated latching rod, (shown in Figures 2 and 9) serves as a locking device 52 (shown in Figure 9) for the seat cushion depth adjuster 14. The grip element 51 and/or an operating element of the control panel 22c are or is connected to the locking device 52 coupled to fix the seat cushion depth adjuster 14 relative to the seat part 2.

The seat cushion depth adjuster 14 forms a support part 53 for the further seat part 50. The further seat part 50 is designed, for example, as a seat part padding 2b, in particular a seat cushion, and can be detachably arranged or arranged and fixed on the support part 53.

The seat cushion shell 8 can be made of plastic. The seat cushion shell 8 can be produced by means of an injection molding process. The seat cushion shell 8 has hook-shaped mounting elements 8a, by means of which the seat cushion shell 8 can be mounted in the seat part frame 2a (shown in FIG. 4).

The module carrier 6 forms the seat cushion shell 8 that can be mounted in the seat part frame 2a. Features described below relating to the seat cushion shell 8 can be applied identically or analogously to a module carrier, not shown, of the backrest 4 and are hereby implicitly disclosed.

Figures 6 to 8 show different representations of the seat cushion shell 8 and the spring mat section 12 as a module 7 with the spring element or elements 11. The seat cushion shell 8 has the second integrated assembly section 12b. The second integral mounting portion 12b is designed as the one with the flange 12c (in Figure 2 shown) bordered assembly opening 12d designed, in which the spring mat section 12, in particular the / the spring element / s 11 can be used or is.

In the illustrated embodiment, the spring element 11 is designed as a spring mat, damping mat or flexible plastic mat, which has a plurality of incisions 12a, in particular slots for single-seat suspension. For example, the spring element 11 and the incisions 12a can be designed as a one-piece flexible spring module, the spring mat section 12 . Alternatively or additionally, the spring mat section 12 can be permeated with spring means, in particular wire springs.

The spring element 11 with the indentations 12a and/or the spring means can be releasably fixed on the flange 12c of the seat cushion shell 8, for example by means of the locking pins 42 (shown in FIG. 8) engaging in the locking openings 41. The latching openings 41 and the latching pins 42 on the circumferential flange 12c form the second integrated mounting section 12b.

The spring element 11 can be made of plastic or wire. The spring element 11 can be produced by means of an injection molding process. The spring element 11 is preferably produced together with the seat cushion shell 8 in a joint injection molding process. The spring element 11 and the seat cushion shell 8 can be produced as a common component by means of a two-component injection molding process or a multi-component injection molding process.

9 shows a detail of the seat cushion shell 8 from FIGS. 2 and 5 in the area of the integrated interface 10 with the first integrated assembly section 14a for the seat cushion depth adjuster 14. The first integrated assembly section 14a is integrally formed in the seat cushion shell 8 designed as a module carrier 6.

The first integrated mounting portion 14a includes the rail portion 14b. The rail section 14b is used to movably accommodate the seat cushion depth adjuster 14 (shown in FIG. 5), which is on its underside has a rail section (not shown) corresponding to the rail section 14b. The rail section 14b is formed, for example, by grooves running in the longitudinal direction x.

The mounting section 14a has the latching section 14c. The seat cushion depth adjuster 14 (shown in FIG. 5) has on its underside a counter-locking section (not shown) which corresponds to the locking section 14c. The latching section 14c is designed, for example, as an integrated latching rod whose latching projections run perpendicular to the longitudinal alignment of the rail section 14b. For example, the latching section 14c is formed between two rail sections 14b in a depression 14e along a longitudinal edge 14f of the depression 14e.

The mounting portion 14a has the guide portion 14d. The guide section 14d is formed, for example, by grooves running in the longitudinal direction x. In cross-section, the grooves essentially have a circular shape, in particular a partially open or closed circular shape. The guide section 14d is used, for example, to accommodate guide means, in particular a guide rod or slide rod (not shown), of the seat cushion depth adjuster 14.

Two guide sections 14d are provided. The two rail sections 14b are arranged between the two guide sections 14d and the latching section 14c for the locking device 52 is in turn arranged between them. The seat cushion depth adjuster 14 has, for example, a locking pin or locking bolt (not shown) as a counter-locking section.

The counter-locking section, the guide means and the corresponding rail sections (not shown in detail) on the underside of the seat cushion depth adjuster 14 form the counter-mounting section 14g (shown in Figure 5) for the longitudinal adjustability of the seat cushion depth adjuster 14 relative to the seat part 2. The first integrated assembly section 14a thus serves to assemble kinematics for adjusting the seat cushion depth of the seat cushion depth adjuster 14 on the seat cushion shell 8.

Figure 10 shows an enlarged view of the seat cushion shell 8 in the area of the second integrated assembly section 12b for the spring mat section 12, in particular the spring element 11 (shown in Figure 6), and in the area of the fourth integrated assembly section 17 for the fan 16 (shown in Figure 13) .

The seat cushion shell 8 has the flange 12c with the locking openings 41 as an integrated fastening area 9 .

The seat cushion shell 8 has the round mounting hole 16a for mounting the fan 16 . The channels 13.1 of the ventilation system 13 open into the assembly opening 16a. The channels 13.1 extend transversely and/or longitudinally in the seating area 2.1.

In addition, several cutouts 46 can be introduced into the seat cushion shell 8, in particular molded in or introduced by means of injection molding. At least one holding tongue 47 protruding downward is formed on one side of the respective cutout 46, for example for receiving and holding electrical lines of electronic modules 7.

FIG. 11 shows an enlarged representation of the fourth integrated mounting section 17 with the round mounting opening 16a. The seat cushion shell 8 has a plurality of inwardly protruding projections 16b, which are arranged in the mounting opening 16a, distributed evenly around the circumference. The channels 13.1 designed as distribution channels 16d open into the assembly opening 16a.

FIG. 12 shows an embodiment of a buffer 16c for the fan 16 (shown in FIG. 13). The buffer 16c has receptacles 16f. The receptacles 16f are, for example, recesses which ensure a better pairing of contact surfaces on an annular seat of the fan 16, in particular allowing an interrupted instead of a full-surface support. The buffer 16c is, for example, preassembled with the fan 16 and can be inserted together with this into the mounting opening 16a and is used to dampen the fan 16. For example, the buffer 16c is made of a plastic material, a silicone material or another material, in particular a vibration-damping material.

In addition, the buffer 16c has an annular base body 16i, from which holding lugs 16g and/or stop lugs 16h protrude vertically on one side.

The respective retaining lug 16g has a detent 16j projecting inwards. The latching lugs 16j are used for latching with the fan 16 (shown in FIG. 14).

The receptacles 16f are introduced on a side of the base body 16i which is opposite the holding lugs 16g and/or the stop lugs 16h. The holding lugs 16g, the stop lugs 16h and/or the receptacles 16f are distributed circumferentially on the base body 16i.

Figure 13 shows an embodiment of the fan 16 as an attachable module 7.

The fan 16 has a round shape. The fan 16 has a plurality of eyelets 16e, which are arranged on the fan 16 with equal distribution around the circumference. The fan 16 can be clipped into the mounting opening 16a by means of the eyelets 16e and the projections 16b. In this way, the fan 16 can be fixed to the seat cushion shell 8 without screws.

14 and 15 show in detail the arrangement and attachment of fan 16 and buffer 16c as modules 7 in the mounting opening 16a of the seat cushion shell 8. The buffer 16c can be arranged between the fan 16 and the mounting opening 16a of the seat cushion shell 8. The buffer 16c can serve to reduce vibrations. The buffer 16c has a round shape. The buffer 16c has a plurality of holding lugs 16g with eyelets and latching lugs 16j and a plurality of stop lugs 16h, which are arranged on the buffer 16c distributed evenly around the circumference.

During assembly, the fan 16 is first clipped into the buffer 16c. The latching lugs 16j come into engagement with the eyelets 16e. Then the pre-assembled Fan 16 and buffer 16c unit clipped into mounting hole 16a. The hooks or projections 16b engage through the openings of the retaining lugs 16g of the buffer 16c and in this way fix it. The locking lugs 16j on the buffer 16c engage through the eyelets 16e of the fan 16.

The buffer 16c can be produced together with the seat cushion shell 8 by means of a two-component injection molding process or multi-component injection molding process. The buffer 16c can be produced together with the fan 16 by means of a two-component injection molding process or a multi-component injection molding process.

The seat cushion shell 8 has a plurality of distribution channels 16d extending from the assembly opening 16a. The distribution channels 16d are arranged in a surface of the seat cushion pan 8 and are integrally formed in the seat cushion pan 8 .

The distribution channels 16d form the channels 13.1 of the ventilation system 13. By means of the distribution channels 16d, the air that can be conveyed by the fan 16 can be distributed behind a foam part of the seat part upholstery 2b of the seat part 2, or be directed to specific areas.

Figures 16-18 show various representations of the seat cushion shell 8 and a cover fastening element 18. The seat cushion shell 8 preferably has at least one or more openings 18a as a sixth assembly section 44 (shown in Figure 2), which serves to accommodate the cover fastening element 18 . The respective cover fastening element 18 can be fixed on the seat cushion shell 8 by inserting it into the opening 18a, in particular on the upper side 2c of the seat cushion shell 8, and then rotating it by 90° using the principle of a so-called bayonet lock. To secure the cover fastening element 18 in the fixed position, the seat cushion shell 8 has two wedges 18b and/or stop ribs 18c in the area of the opening 18a, which secure the cover fastening element 18 on a side (bottom or lower side 2d) of the seat cushion shell 8 opposite the cover fastening element 18 . The cover fastening element 18 has hook-shaped sections which protrude from the upper side 2c of the seat cushion shell 8 stand out Corresponding counter-elements (not shown) connected to a cover of the seat cushion 2 can be connected in the hook-shaped sections.

FIG. 19 shows a view of the seat cushion shell 8 from the front. The seat cushion shell 8 has integrally formed support sections 19 which serve to form side bolsters or on which intended side bolsters of the seat part 2 can be supported. The support sections 19 protrude vertically upwards from the seating area 2.1 along the longitudinal sides 2e of the seat cushion shell 8.

Figures 20-22 show different representations of the seat cushion shell 8 and the side bolster adjuster 20 and the third integrated assembly section 21. In the area of the support sections 19 of the seat cushion shell 8, side bolster adjusters 20 (shown in Figures 21 and 22) can be provided for the individual adjustment of the side bolsters of the seat part 2. For fastening the side bolster adjusters 20, the seat cushion shell 8 has two projections 20b (shown in FIG. 20) on a lateral edge as a third integrated assembly section 21. The side bolster adjusters 20 can each be fixed to the seat cushion shell 8 by means of a holding element 20a (shown in FIGS. 21 and 22). The holding element 20a can be hung on the projections 20b and can be fixed, for example, at an end section of the holding element 20a opposite the projections 20b by means of at least one cover fastening element 18 or an alternative fixing element on the seat cushion shell 8 .

The third integrated assembly section 21 can include at least one static adjustment section for the side bolster adjuster 20 for the adjustable attachment of the side bolsters. The side bolster adjuster 20 is designed, for example, as a bellows filled with a fluid. Alternatively, the side bolster adjuster 20 can be formed as a non-adjustable rigid foam part or a bracket made of metal or a plastic, which is additionally padded, for example.

Figures 23-26 show various representations of the seat cushion pan 8 and side skirt 22 (shown in Figure 24) and the fifth integral mounting section 43 (shown in Figures 2 and 23). The seat cushion shell 8 has at least one holding opening 22a, in particular two holding openings 22a, in the area of its outer edge as the fifth integrated assembly section 43. The side skirt 22 can be mounted on the seat cushion shell 8 by means of at least one hook section 22b cooperating with the holding opening 22a, in particular two cooperating hook sections 22b. The side skirt 22 may include the control panel 22c (shown in Figure 4). Several switches 22d can be arranged in the control panel 22c. A further side skirt 22 without a control panel 22c is preferably arranged mirror-symmetrically on the seat cushion shell 8 on a side of the seat part 2 opposite the side skirt 22 with the control panel 22c.

27 shows an oblique view of the seat cushion shell 8 from below, with a cover attachment channel 24. The seat cushion shell 8 has a cover attachment channel 24 arranged circumferentially in sections. The cover attachment channel 24 can have hooks in sections, which secure a counter-element attached to the cover of the seat part padding 2b in the cover attachment channel 24 .

Figures 28-30 show different representations of the seat cushion shell 8 and a light source 26. The seat cushion shell 8 has an integrated assembly opening 26a. The illuminant 26 has a hook element 26c and a clip element 26b lying opposite the hook element 26c. The illuminant 26 can be fastened in the mounting opening 26a by means of the hook element 26c and the clip element 26b. In the case of a seat cushion shell 8 mounted in a vehicle seat 1 , the light source 26 serves to illuminate a foot area for a vehicle occupant sitting behind the vehicle seat 1 .

FIGS. 31-36 show different representations of the seat cushion shell 8 in the area of assembly sections of lines 28 in laying channels 28a. The laying channels 28a can cross or lead into each other (shown in FIG. 36). Mounting sections in the form of holding means 28b (shown in FIGS. 32 and 35) can be provided on the underside (lower side 2d) of the seat cushion shell 8 in order to fix various lines 28 in place. The holding means 28b can, for example, be a so-called omega clip or tabs for be fastening straps. The holding means 28b are designed, for example, as a cutout 46 with holding tongues 47 or fixing tongues protruding from one side.

Laying channels 28a can be provided on the underside (lower side 2d) of the seat cushion shell 8 in order to lay various lines 28 . The laying channels 28a can be formed by means of ribs protruding from the seat cushion shell 8 . The lines 28 can be electrical lines 28 of a cable harness. The lines 28 can be pneumatic lines 28 .

The seat cushion shell 8 can additionally have fixing elements 28c, by means of which connecting means of sensor housings or valve housings that are designed to cooperate accordingly can be fastened. The fixing elements 28c are designed, for example, as cutouts 46 with retaining tongues 47 or fixing tongues protruding from one side.

FIG. 37 shows a view of the seat cushion shell 8 obliquely from below with a reinforcement section 30. The reinforcement section 30 is used for local reinforcement of the seat cushion shell 8. The reinforcement section 30 can have a rib structure molded onto the seat cushion shell 8. The reinforcement section 30 can be formed separately as a module 7 and arranged and fixed on the seat cushion shell 8 as an add-on part. Alternatively or additionally, the reinforcement section 30 can be formed in an integrated manner. The reinforcement section 30 can be a reinforcement made of a fiber composite plastic, in particular a glass fiber reinforced plastic, applied locally to the underside or top of the seat cushion shell 8 . The seat cushion shell 8 can have an overmoulded carrier body, in particular made of metal, in the reinforcement section 30 . Hollow reinforcement sections 30 in the seat cushion shell 8 can be produced by means of internal pressure injection molding.

FIGS. 38-40 show different representations of the seat cushion shell 8 and an alternative embodiment of a side skirt 40. The side skirt 40 does not have a control panel arranged on the side of the seat part 2. To reinforce the side skirt 40 is between the side skirt 40 and one of the side skirt 40 concealable seat kinematics 48 or other devices for providing other seat functions, a rib structure 40a (shown in Figure 39) is arranged. The side skirt 40 also has hook sections which can be fixed in the holding openings 22a of the seat cushion shell 8 . In the present case, a control panel 40b for actuating seat functions is arranged as a module 7 on an upper side of an outer edge section of the seat cushion shell 8 . In the present case, the control panel 40b is a touch-sensitive control panel 40b.

The features disclosed in the above description, the claims and the drawings can be important both individually and in combination for the implementation of the invention in its various configurations.

Although the invention has been described in detail in the drawings and the foregoing representation, the representations are to be understood as illustrative and exemplary and not restrictive. In particular, the selection of the proportions of the individual elements shown in the drawing should not be interpreted as necessary or restrictive. Furthermore, the invention is in particular not limited to the exemplary embodiments explained. Further variants of the invention and their implementation result from the above disclosure, the figures and the claims for the person skilled in the art.

Terms used in the claims such as "comprise", "have", "include", "contain" and the like do not exclude other elements or steps. The use of the indefinite article does not exclude a plural. A single device can perform the functions of several units or devices specified in the claims. List of reference symbols vehicle seat seat part .1 seat area .2 recess .3 increase a seat part frame b seat part upholstery c upper side d lower side e long side f transverse side backrest adjuster backrest a backrest frame b backrest cushion longitudinal adjuster module carrier .1 first shell attachment .2 second shell attachment module seat cushion shell a mounting element integrated attachment area 0 integrated Interface 1 spring element 2 spring mat section 2a cut 2b second integrated mounting section 2c flange 2d mounting opening 3 ventilation system .1 Seat cushion depth adjuster channel a First integrated assembly sectionb Rail section c Latch section d Guide section e Depression f Longitudinal edge g Counter-assembly section Reinforcement area Fan a Assembly opening b Projection c Buffer d Distribution channel e Eyelet f Receptacle g Retaining lug h Stop lug i Base body j Latching lugs Fourth integrated assembly section Cover fastening element a Opening b Wedge c Stop rib Support portions Side bolster adjuster a Retaining member b Protrusion Third integral mounting portion Side skirt a Retaining hole b Hook portion 22c control panel

22d switch

24 cover attachment channel

26 bulbs

26a mounting hole

26b clip element

26c hook element

28 line

28a laying channel

28b holding means

28c fixing element

30 reinforcement section

40 side skirt

40a rib structure

40b control panel

41 detent opening

42 detent pin

43 fifth assembly section

44 sixth assembly section

45 side panel

46 excerpt

47 retaining tab

48 seat kinematics

50 additional seat part

51 handle element

52 locking device

53 supporting part x longitudinal direction y transverse direction z vertical direction

Claims

patent claims

1. Seat part (2) for a vehicle seat (1), in particular a motor vehicle seat, having a seat cushion shell (8) which is designed as a module carrier (6) for carrying various modules (7), the module carrier (6) having an integrated interface ( 10) which is set up to support a kinematic system of a module (7) designed as a seat cushion depth adjuster (14).

2. Seat part (2) according to claim 1, wherein the integrated interface (10) is arranged in a longitudinal direction (X) front region of the seat cushion shell (8).

3. Seat part (2) according to claim 1 or 2, wherein the seat cushion shell (8) as an integrated interface (10) comprises a first integrated mounting section (14a).

4. Seat part (2) according to claim 3, wherein the seat cushion depth adjuster (14) has a counter-mounting section (14g) corresponding to the first integrated mounting section (14a) on a side facing the integrated interface (10).

5. Seat part (2) according to claim 3 or 4, wherein the seat cushion depth adjuster (14) is mounted longitudinally movable relative to the seat part (2) by means of the first integrated assembly section (14a) and the counter-assembly section (14g) corresponding thereto.

6. Seat part (2) according to claim 5, wherein the first integrated assembly section (14a) has at least one integrated rail section (14b), an integrated latching section (14c) and/or an integrated guide section (14d).

7. seat part (2) according to any one of claims 4 to 6, wherein the locking portion (14c) serves as a locking device (52) for the seat cushion depth adjuster (14).

8. Seat part (2) according to any one of the preceding claims, wherein the seat cushion depth adjuster (14) comprises at least one handle element (51) and / or at least one control element of a control panel (22c) for unlocking and locking.

9. Seat part (2) according to claim 8, wherein the handle element (51) and / or the control element with the locking device (52) for fixing the seat cushion depth adjuster (14) relative to the seat part (2) are coupled or is.

10. Seat part (2) according to one of the preceding claims, wherein the seat cushion shell (8) is formed from at least one base material by compression molding and/or injection molding and comprises a plurality of integrated fastening areas (9).

11 . Seat part (2) according to claim 10, wherein the integrated fastening areas (9) on an upper side (2c), a lower side (2d) and/or in the area of longitudinal sides (2e) and/or transverse sides (2f) of the seat cushion shells (8 ) are trained.

12. Seat part (2) according to one of the preceding claims, wherein the seat cushion shell (8) is designed as at least one further module (7) at least one seat part cushion (2b), a spring mat section (12), a damping element, a spring element (11) , a spring element (11) with indentations (12a), a side bolster adjuster (20), a side skirt (22, 40), an illuminant (26), a control panel (22c), a switch (22d), a fan (16) and / or wear a ventilation system (13).

13. Seat part (2) according to one of the preceding claims, wherein the seat cushion shell (8) has at least two integrated different shell attachments (6.1, 6.2) for variable attachment of the seat cushion shell (8).

14. Seat part (2) according to claim 13, wherein a first shell attachment (6.1) is designed as an integrated mounting element (8a) for a static arrangement of the seat cushion shell (8).

15. Seat part (2) according to claim 13 or 14, wherein a second shell attachment (6.2) is designed as an integrated joint element for a movable arrangement of the seat cushion shell (8).

16. Vehicle seat (1), in particular a motor vehicle seat, having at least one seat part (2) according to one of the preceding claims and a further seat part (50), the two seat parts (2, 50) being connectable or connected to one another in a seat-depth-adjustable manner by means of the seat cushion depth adjuster (14). are.

17. The vehicle seat (1) according to claim 16, wherein the further seat part (50) can be moved in and out along an adjustable length by means of the seat cushion depth adjuster (14).

18. Vehicle seat (1) according to claim 16 or 17, wherein the further seat part (50) is mounted longitudinally movable relative to the seat part (2) by means of the seat cushion depth adjuster (14).

19. Vehicle seat (1) according to any one of claims 16 to 18, wherein the seat cushion depth adjuster (14) forms a supporting part (53) of the further seat part (50).

20. Vehicle seat (1) according to any one of claims 16 to 19, wherein the further seat part (50) comprises at least one seat part cushion (2b) which is arranged on the seat cushion depth adjuster (14).