Seat system for a motor vehicle and arrangement

Abstract

The invention relates to a seat system (1) for a motor vehicle, comprising a seat body (5) which has at least one seat surface (6) provided for sitting by a person, and comprising at least one lower seat fastening device (12) by means of which the seat system (1) can be adjustably held on a seat connection part (13) of the motor vehicle, wherein the lower seat fastening device (12) has a plurality of fastening elements (17), each of which has a respective first fastening point (18), at which the respective fastening element (17) is held in an articulated manner on the seat body (5) in a lower region (5a) of the seat body (5) in the vehicle's vertical direction (4), and a respective second fastening point (19), by means of which the respective fastening element (17) can be held in an articulated manner on the seat connection part (13), wherein the seat body (5) extends downwards in the vehicle's vertical direction (4) at least as far as the respective second fastening point (19).

Description

[0001] The invention relates to a seat system for a motor vehicle according to the preamble of patent claim 1. Furthermore, the invention relates to an arrangement of a seat system in an interior of a motor vehicle according to the preamble of patent claim 9.

[0002] US 2018 / 0 222 356 A1 discloses a vehicle seat having a seat cushion frame with side frames each provided at both end portions of the seat cushion frame in the seat width direction, wherein a height adjustment mechanism configured to adjust the height of the seat cushion frame and a biasing member configured to assist in adjusting the height of the seat cushion frame are provided.

[0003] The object of the invention is to provide a seat system for a motor vehicle and an arrangement of a seat system in an interior of a motor vehicle, so that the seat system can be adjusted and arranged in a particularly space-saving manner in the interior of the motor vehicle.

[0004] This object is achieved according to the invention by a seat system for a motor vehicle having the features of patent claim 1 and by an arrangement of a seat system in an interior of a motor vehicle having the features of patent claim 9. Advantageous embodiments of the invention are the subject of the dependent patent claims and the description.

[0005] A first aspect of the invention relates to a seating system for a motor vehicle, which is preferably designed as a motor vehicle, in particular as a passenger car. The motor vehicle is, for example, a sports vehicle, in particular a sports car, or a racing vehicle, in particular a road racing vehicle.

[0006] Preferably, the motor vehicle is designed as an electrically driven motor vehicle. This means that the motor vehicle has at least one electric machine by means of which the motor vehicle can be driven. Thus, the motor vehicle is designed, for example, as a battery-electric vehicle (BEV).

[0007] When installed in the motor vehicle, the seat system is arranged in an interior of the motor vehicle. The interior, which can also be referred to as the vehicle interior, can be understood as a passenger compartment or passenger cell. The interior is preferably at least partially defined or formed by a body of the motor vehicle, in particular a self-supporting body.

[0008] The seating system, which can also be referred to as a vehicle seat, has at least one seating body which has at least one seating surface intended or designed for a person to sit on. In other words, the person can be supported or is supported, in particular directly, on or against the seating surface when the person is sitting on the seating system, in particular on the seating body. The seating body can be understood in particular as a basic body of the seating system. The seating body has, for example, a base part and a backrest part which extends obliquely or perpendicular to the base part. The backrest part can also be referred to as a backrest. The seating system, in particular the seating body, can be designed as an integral seat. This means that the base part and the backrest part are designed together in one piece, i.e., for example, they are formed from a monoblock.The seat surface can be formed at least partially by the base part. Preferably, the seat surface, particularly when the seat system is installed in the motor vehicle, faces upwards in the vertical direction of the vehicle. The backrest part preferably has at least one backrest surface, against which a person's back can be or is supported, particularly directly, when sitting on the seat system or the seat body. The backrest surface preferably extends obliquely or perpendicularly to the seat surface.

[0009] The seat system has at least one lower seat fastening device, by means of which the seat system, in particular the seat body, preferably the base part, can be or is held adjustably, for example at least indirectly or directly, between at least two mutually different positions, on a seat connection part of the motor vehicle. In other words, the seat system, in particular the seat body, can be or is fastened adjustably to the seat connection part by means of the lower seat fastening device. The adjustment or adjustability of the seat system is understood here to mean that the seat system is movable or displaceable, for example relative to the seat connection part. The seat system, in particular the seat body, can preferably be adjusted in at least two spatial directions or in all three spatial directions.By adjusting the seat system, the seat system can be ergonomically adapted to the individual. The term "lower seat attachment" is understood here to mean that the seat attachment device, referred to as the lower seat attachment device, is arranged in the vertical direction of the vehicle in a lower area of ​​the seat system, particularly when the seat system is installed in the motor vehicle. The seat attachment part is therefore, for example, part of a vehicle floor structure, in particular the vehicle underbody structure. The floor structure is, for example, part of a floor assembly of the body.

[0010] The lower seat fastening device has at least several fastening elements, each of which has a first fastening point at which the respective fastening element is held, in particular in the installed position of the seat system in the motor vehicle, in the lower region of the seat body in the vehicle's vertical direction, in an articulated manner, in particular directly, on the seat body, for example on the base part. This means that the respective fastening element is fastened to the seat body at the respective first fastening point so as to be pivotable about a first pivot axis. Pivotability is understood to mean the pivotability of the respective fastening element relative to the seat body.Furthermore, the respective fastening element has a respective second fastening point, in particular spaced from the respective first fastening point, via which, in particular at which, the respective fastening element is to be held or is held in an articulated manner, for example directly, on the seat connection part of the motor vehicle. This means that the respective fastening element is fastened to the seat connection part via the respective second fastening point so as to be pivotable about a respective second pivot axis. In this case, the respective pivotability is understood to mean the pivotability of the respective fastening element relative to the seat connection part. The respective first and the respective second pivot axes run parallel to one another, for example.

[0011] In order to be able to arrange the seat system adjustably and in a particularly space-efficient manner in the interior, it is provided that the seat body extends downwards in the vehicle's vertical direction at least as far as the respective second fastening point, in particular when installed in the motor vehicle. In other words, a lower end of the seat body relative to the vehicle's vertical direction is arranged as far down or further down in the vehicle's vertical direction than the second fastening points, for example in at least one of the positions, in particular in all positions. Thus, it is provided, for example, that the lower end of the seat body extends further downwards in the vehicle's vertical direction than an upper end of the seat connection part relative to the vehicle's vertical direction. The seat connection part can therefore partially cover or conceal the seat body.

[0012] The invention is based in particular on the following findings and considerations: In the prior art, vehicle seats, for example for particularly sporty vehicles or racing cars, can be screwed to the vehicle underbody structure using simple sheet metal seat consoles, either permanently or on adjustable rails. In some cases, such vehicle seats can also be connected to the vehicle structure, for example the monocoque of the roll cage, at the backrest in the vehicle's vertical direction (z-direction), largely in the uppermost area. With such a variant, however, axial displacement of the seat system or the seat body may not be feasible. Furthermore, efficient sports vehicles or racing cars generally have a particularly small frontal area. Such a small frontal area can particularly increase the aerodynamic drag of the vehicle.In order to achieve such a particularly small frontal area, the vehicle height can essentially be the most important influencing factor given today's typical vehicle widths. Especially in battery-electric vehicles, and especially high-performance battery-electric vehicles, the space required for an energy storage unit, which can also be simply referred to as a storage unit, can be enormous. For dynamic reasons (center of gravity), it may be advisable to install the electrical energy storage unit on the vehicle floor, ideally in the center of the vehicle, which has also largely become established in the state of the art. This can usually be the exact location where a driver, and for example a front passenger or other occupants, can be accommodated.It can therefore be of crucial importance that the connection of the seat system in the vehicle's vertical direction is designed to be as economical as possible in terms of weight, while at the same time ensuring good adjustability of the seat with an overall rigid connection to the vehicle structure.

[0013] Because the seat body of the inventive seat system extends downwards in the vehicle's vertical direction at least as far as the respective second fastening point, and extends, for example, further downwards in the vehicle's vertical direction than the respective second fastening point, a particularly compact and particularly rigid connection to the vehicle structure in the form of the seat connection part of the motor vehicle can be enabled. A vehicle structure can be created around the electrical energy storage device, wherein this vehicle structure can enable a dimensionally minimal seat attachment in the vehicle's vertical direction. The seat body can thus be arranged particularly close to the electrical energy storage device. This means that a distance extending in the vehicle's vertical direction between the seat system and the electrical energy storage device can be kept particularly small.This has a particularly advantageous effect on installation space, as it allows the vehicle's overall height to be kept particularly low. This allows the frontal area of ​​the vehicle to be significantly reduced, thereby keeping the vehicle's aerodynamic drag to a minimum.

[0014] In a further embodiment, it is provided that the seat body, particularly in the installed position in the motor vehicle, extends further forward and further rearward in the vehicle's longitudinal direction than the second fastening points. In other words, the second fastening points of the lower seat fastening device are arranged in the vehicle's longitudinal direction between a front end of the seat body and a rear end of the seat body. Alternatively or additionally, it is provided, for example, that the seat body, particularly in the installed position in the motor vehicle, extends further on both sides in the vehicle's transverse direction, particularly outwards and inwards, than the second fastening points.This means that an outer end of the seat body, relative to the vehicle transverse direction, is arranged further outwards in the vehicle transverse direction than the second fastening point if the second fastening point or one of the second fastening points is arranged on a side of the seat system facing outwards in the vehicle transverse direction, and that an inner end of the seat body, relative to the vehicle transverse direction, is arranged further inwards in the vehicle transverse direction than the second fastening point if the second fastening point or one of the second fastening points is arranged on a side of the seat system facing inwards in the vehicle transverse direction. It is therefore provided in particular that the second fastening points are arranged in the vehicle transverse direction between the ends of the seat body that delimit the seat body in the vehicle transverse direction.It is thus evident that the fastening of the seat system in the vehicle's longitudinal and / or transverse directions can be implemented in a particularly space-saving manner. Thus, a connection option in the form of the lower seat fastening device can be located within an outer seat contour, in particular including the adjustment range envelope, of the seat body, particularly in the vehicle's longitudinal direction (x-direction) and / or the vehicle's transverse direction (y-direction). This can apply both in the vehicle's longitudinal direction for the seat system's connection points to the vehicle and in the vehicle's transverse direction for the connection points to the vehicle seat.

[0015] In a further embodiment, it is provided that the respective fastening element has a respective first fastening part having the respective first fastening point and a respective second fastening part having the respective second fastening point, which can be moved translationally relative to the respective first fastening part, in particular along a direction of movement, in order to adjust the seat system, in particular the seat body. In other words, the respective fastening element is designed to be adjustable in length. The respective fastening element can be a purely mechanically adjustable connecting element. An adjustment mechanism for adjusting the seat system or the seat body, for example between the aforementioned positions, can thus be realized in a particularly space-efficient manner.For example, the direction of movement is oblique or perpendicular to the first and / or second pivot axis.

[0016] In a further embodiment, it is provided that one of the fastening parts, for example the first fastening part, of at least one of the fastening elements has a plurality of receiving elements and the other of the fastening parts, for example the second fastening part, of the at least one fastening element has at least one, in particular spring-loaded, locking element, which can be received or is received in the respective receiving element to form a respective locking connection. This means that the locking element can be connected to the fastening part having the receiving elements by being received in the receiving elements, in particular in a form-fitting manner. The locking connection can secure a currently set length of the fastening element. A locking element, for example a spring-loaded one, can therefore be provided on the seat connection area to secure a longitudinal adjustment of the respective fastening element.For example, the fastening element has a first length when the locking element is received in a first of the receiving elements. For example, the fastening element has a second length that differs from the first length when the locking element is received in a second of the receiving elements that differs from the receiving element.

[0017] Alternatively or additionally, it is provided, for example, that one of the fastening parts, for example the second fastening part, of at least one of the fastening elements has a receiving space and the other of the fastening parts, for example the first fastening part, of the at least one fastening element has at least one piston rod, which is received or mounted in the receiving space so as to be translationally movable. In other words, the piston rod is arranged in the receiving space, wherein the piston rod is translationally movable relative to the fastening part having the receiving space, in particular along the direction of movement. By moving the piston rod in the receiving space, the translational movement of the fastening parts relative to one another can be effected. This means that moving the piston rod in the receiving space is accompanied by the movement of the fastening parts relative to one another.The piston rod, which is rotatably mounted on the seat body or the seat connection part, enables the length adjustment of the fastening element. This allows for particularly space-efficient and robust adjustment of the seat system. For example, the piston rod can be moved hydraulically, pneumatically, or electrically. The power supply for this movement can also be decoupled and does not necessarily need to be carried in the vehicle.

[0018] Alternatively, it is provided, for example, that the fastening parts of at least one of the fastening elements each have a respective thread, via which the fastening parts of the at least one fastening element are connected to one another so as to be rotatable relative to one another, in particular about a rotation axis. In other words, the fastening parts of the at least one fastening element engage with one another via the threads, wherein the fastening parts can rotate relative to one another about the rotation axis. The fact that the fastening parts are rotatable relative to one another can be understood in particular to mean that the first fastening part is rotatable relative to the second fastening part and / or the second fastening part is rotatable relative to the first fastening part.Furthermore, it is provided that the rotation of the fastening parts of the at least one fastening element is accompanied by the translational movement of the fastening parts of the at least one fastening element, whereby in particular the length adjustment can be effected. In other words, the translational movement of the fastening parts is or will be effected by the rotation of the fastening parts relative to one another. This means that a rotational relative movement of the fastening parts can be converted into a translational relative movement of the fastening parts. Because the fastening parts have the thread which engages with one another, the adjustability of the seat system or the seat body can be realized in a particularly space-efficient and particularly robust manner.

[0019] In a further embodiment, the seat system has at least one upper seat fastening device, which is arranged higher in the vertical direction of the vehicle than the lower seat fastening device, in particular in the installed position of the seat system in the motor vehicle, and by means of which the seat system, in particular the seat body, preferably the backrest part, for example between the positions, is to be held or is held adjustably on a second seat connection part of the motor vehicle. The upper seat fastening device has at least one fastening element, which can be referred to as a holding element, in particular to distinguish it from the fastening elements of the lower seat fastening device. The holding element has a first fastening point, which can be referred to as the first connection point, and a second fastening point, which can be referred to as the second connection point. The connection points are preferably spaced apart from one another.At the first connection point, the holding element is held in an articulated manner, in particular directly, on the seat body, preferably on the backrest part, in particular when the seat system is installed in the motor vehicle, in an upper region of the seat body in the vertical direction of the vehicle. This means that the holding element is fastened to the seat body, in particular to the backrest part, at the first connection point so that it can pivot about a pivot axis. Pivotability is understood to mean the pivotability of the holding element relative to the seat body. At the second connection point, the holding element is to be held or is held in an articulated manner, for example directly, on the second seat connection part of the motor vehicle. This means that the holding element is fastened or can be fastened to the second seat connection part via the respective second connection point so that it can pivot about a pivot axis.In this case, the respective pivotability is understood to mean the pivotability of the respective holding element relative to the second seat connection part. The pivot axes of the holding element run parallel to one another, for example. The second seat connection part is preferably arranged higher up in the vertical direction of the vehicle than the seat connection part. The second seat connection part is, for example, part of the body. By means of the upper seat fastening device, the seat system, in particular the backrest part, can be fastened separately, i.e. in addition to the lower seat fastening device, to the vehicle structure in the form of the second seat connection part. This enables a particularly rigid connection of the seat system, i.e. in particular a particularly secure connection of the seat system, in the interior of the motor vehicle.

[0020] In a further embodiment, it is provided that the seat body, in particular when installed in the motor vehicle, extends further forward and further rearward in the vehicle's longitudinal direction than the second connection point. In other words, the second connection point of the upper seat fastening device is arranged in the vehicle's longitudinal direction between the front end of the seat body and the rear end of the seat body. Alternatively or additionally, it is provided, for example, that the seat body, in particular the backrest part, projects outwards beyond the second connection point in its transverse direction of extent. In other words, the seat body, in particular when installed in the motor vehicle, extends further on both sides in the vehicle's transverse direction, in particular outwards and inwards, than the second connection point.This means that the outer end of the seat body, relative to the vehicle transverse direction, is arranged further outwards in the vehicle transverse direction than the second connection point if the second connection point is arranged on the side of the seat system pointing outwards in the vehicle transverse direction, and that the inner end of the seat body, relative to the vehicle transverse direction, is arranged further inwards in the vehicle transverse direction than the second connection point if the second connection point is arranged on the side of the seat system pointing inwards in the vehicle transverse direction. It can therefore be seen that the fastening of the seat system in the vehicle longitudinal direction and / or in the vehicle transverse direction can be implemented in a particularly space-saving manner.Thus, a connection option in the form of the upper seat fastening device can be located within the outer contour of the seat, in particular including the adjustment range envelope, of the seat body, particularly in the vehicle's longitudinal direction (x-direction) and / or transverse direction (y-direction). This can apply both in the vehicle's longitudinal direction for connection points of the seat system on the vehicle and in the vehicle's transverse direction for connection points on the vehicle seat.

[0021] In a further embodiment, it is provided that the holding element has a first fastening part having the first connection point, which can be referred to as the first holding part, and a second fastening part having the second connection point, which can be referred to as the second holding part. The second holding part can be moved translationally relative to the first holding part, in particular along a direction of movement of the holding element, in order to adjust the seat system, in particular the seat body. In other words, the holding element is designed to be adjustable in length. The holding element can be a purely mechanically adjustable connecting element. An adjustment mechanism for adjusting the seat system or the seat body, for example between the aforementioned positions, can thus be implemented in a particularly space-efficient manner.For example, the direction of movement of the holding element runs obliquely or perpendicular to the pivot axes of the holding element.

[0022] In a further embodiment, it is provided that one of the holding parts, for example the first holding part, has a plurality of receiving elements and the other of the holding parts, for example the second holding part, has at least one, in particular spring-loaded, locking element, which can be received or is received in the respective receiving element of one holding part, forming a respective locking connection. This means that the locking element can be connected to the holding part having the receiving elements by being received in the receiving elements, in particular in a form-fitting manner. The locking connection can secure a currently set length of the holding element. A locking element, for example a spring-loaded one, can therefore be provided on the seat connection area to secure a longitudinal adjustment of the holding element.For example, the holding element has a first length when the locking element is received in a first of the receiving elements. For example, the holding element has a second length that differs from the first length when the locking element is received in a second of the receiving elements that differs from the receiving element.

[0023] Alternatively, it is provided, for example, that one of the holding parts, for example the second holding part, has a receiving space and the other of the holding parts, for example the first holding part, has at least one piston rod which is received or mounted in the receiving space so as to be translationally movable. In other words, the piston rod of the holding element is arranged in the receiving space of the holding element, wherein the piston rod of the holding element is translationally movable relative to the holding part having the receiving space, in particular along the direction of movement. By moving the piston rod of the holding element in the receiving space of the holding element, the translational movement of the holding parts relative to one another can be effected. This means that moving the piston rod in the receiving space is accompanied by the movement of the holding parts relative to one another.The piston rod, which is rotatably mounted on the seat body or on the second seat connection part, enables the length adjustment of the retaining element. This allows for particularly space-efficient and robust adjustment of the seat system. For example, the piston rod can be moved hydraulically, pneumatically, or electrically. A power supply for this movement can also be decoupled and does not necessarily need to be carried in the vehicle.

[0024] Alternatively, it is provided, for example, that the holding parts each have a respective thread, via which the holding parts are connected to one another so as to be rotatable relative to one another, in particular about a holding part rotation axis. In other words, the holding parts are engaged with one another via the thread, wherein the holding part parts can rotate relative to one another about the holding part rotation axis. The fact that the holding parts are rotatable relative to one another can be understood in particular to mean that the first holding part is rotatable relative to the second holding part and / or the second holding part is rotatable relative to the first holding part. Furthermore, it is provided that the rotation of the holding parts is accompanied by the translational movement of the holding parts, which can in particular bring about the length adjustment of the holding element.In other words, the translational movement of the retaining parts is achieved by twisting the retaining parts relative to each other. This means that a rotational relative movement of the retaining parts can be converted into a translational relative movement of the retaining parts. Because the retaining parts have threads that engage with each other, the adjustability of the seat system or seat body can be realized in a particularly space-efficient and robust manner.

[0025] A second aspect of the invention relates to an arrangement of a seat system in the interior of a motor vehicle. The seat system is preferably a seat system according to the first aspect of the invention. Advantages and advantageous embodiments of the first aspect of the invention are to be regarded as advantages and advantageous embodiments of the second aspect of the invention, and vice versa.

[0026] The seat system has a seat body which has at least one seat surface provided for sitting by a person. Furthermore, the seat system has at least one lower seat fastening device, via which the seat system, in particular the seat body, is adjustably held on a seat connection part of the motor vehicle. The lower seat fastening device has at least one fastening element which has a first fastening point, at which the fastening element is held in an articulated manner on the seat body in a lower region of the seat body in the vehicle's vertical direction, and a second fastening point, via which, in particular at which, the fastening part is held in an articulated manner on the seat connection part of the motor vehicle.

[0027] In order to be able to arrange the seat system in the interior in an adjustable and particularly space-saving manner, it is provided according to the invention that the seat body extends downwards in the vertical direction of the vehicle at least as far as the second fastening point.

[0028] In a further embodiment, it is provided that the seat connection part is designed as a frame, within which an electrical energy storage device of the motor vehicle extends at least partially. In other words, the frame at least partially surrounds the electrical energy storage device, for example in its circumferential direction. The electrical energy storage device is thus, for example, at least partially covered by the seat connection part. The electrical energy storage device can thus be arranged in the motor vehicle in a particularly space-saving manner, namely, for example, in particular in the vehicle longitudinal direction and / or in the vehicle transverse direction, between frame parts of the frame. The frame can thus at least partially form a receiving space for arranging the electrical energy storage device. The installation space of the motor vehicle can thus be designed particularly advantageously, whereby in particular the overall height of the motor vehicle can be kept particularly low.

[0029] A further aspect relates to a motor vehicle having at least one seat system according to the first aspect of the invention. Advantages and advantageous embodiments of the further aspect are to be regarded as advantages and advantageous embodiments of the first and second aspects of the invention, and vice versa.

[0030] Further features of the invention emerge from the claims, the figures, and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures, can be used not only in the respective specified combination, but also in other combinations or on their own.

[0031] The invention will now be explained in more detail using a preferred embodiment and with reference to the drawings. They show: Fig. 1 is a schematic perspective view of an arrangement according to the invention of a seating system according to the invention; and Fig. 2 is a schematic front view of an arrangement according to the invention of a seating system according to the invention; and Fig. 3 is a schematic partial sectional view of an arrangement according to the invention of a seating system according to the invention; and Fig. 4 a schematic side view of an arrangement according to the invention of a seating system according to the invention; and Fig. 5 is a schematic representation of a seat fastening device of a seat system according to the invention; and Fig. 6 a schematic detailed view of the seat fastening device according to Fig. 5; and Fig. 7 a schematic and perspective partial view of the seat fastening device according to Fig. 5; and Fig. 8 is a schematic representation of a seat fastening device of a seat system according to the invention according to a further embodiment; and Fig. 9 a schematic representation of a seat fastening device of a seat system according to the invention according to a further embodiment.

[0032] In the figures, identical or functionally identical elements are provided with the same reference symbols.

[0033] Fig. 1 shows a schematic perspective view of an arrangement of a seat system 1 in an interior 2 of a motor vehicle, which is preferably designed as an electrically driven motor vehicle, for example as a battery-electric vehicle. Fig. 1, an electrical energy storage device 3 of the motor vehicle extends at least partially in the vehicle vertical direction 4 under the seat system 1. Preferably, a Fig. 1, a base plate (not shown) is arranged between the seating system 1 and the electrical energy storage device 3. Thus, the electrical energy storage device 3 is arranged, for example, in the vertical direction 4 of the vehicle below the base plate, as a result of which the electrical energy storage device 3 is not arranged in the interior 2. The electrical energy storage device 3 is designed, for example, as an accumulator or a battery. Preferably, an electrical machine of the motor vehicle can be supplied with electrical energy by means of the electrical energy storage device 3 in order to drive the motor vehicle, for example purely electrically. The energy can be understood to mean energy stored or chemically bound in the electrical energy storage device 3.

[0034] The seat system 1 has a seat body 5, which can also be referred to simply as a seat and is designed, for example, as a seat shell. For example, the seat system 1 or the seat body 5 is designed as an integral seat. The seat body 5, in particular a base part 6 of the seat body 5, has at least one seat surface 7 intended for sitting by a person, which seat surface 7 faces upwards, for example, in the vehicle's vertical direction 4. In the exemplary embodiment, the base part 6 is adjoined by a backrest part 8, which extends obliquely or perpendicular to the base part 6 and, in this case, is formed integrally with the base part 6. The backrest part 8 can also be referred to as a backrest. In this case, the backrest part 8 has at least one backrest surface 9, on which the person sitting on the seat system 1, in particular the seat surface 7, can support their back. The backrest surface 9 faces forward in the vehicle's longitudinal direction 10.

[0035] In the present case, a seat attachment is provided by means of which the seat system 1 is adjustably fastened or mounted in the interior 2. "Adjustable" can be understood as an adjustability of the seat system 1, whereby the seat system 1, in particular the seat body 5, can be moved in the vehicle's longitudinal direction 10 and / or in the vehicle's vertical direction 4. Furthermore, an inclination of the seat system 1, in particular of the seat body 5, can be adjusted, wherein the seat body 5, in particular the backrest part 8, can be tilted about at least one axis of rotation extending, for example, in the vehicle's transverse direction 11.

[0036] The seat system 1, in particular the seat attachment, has a lower seat attachment device 12, via which the seat system 1, in particular the seat body 5, is to be held or is held adjustably on a seat attachment part 13 of the motor vehicle. The seat attachment part 13 is, for example, part of a floor structure, in particular a floor assembly, of the motor vehicle, for example a body of the motor vehicle. In the present case, the seat attachment part 13 is designed as a frame. In the Fig. 1, the electrical energy storage device 3 extends at least partially within the seat connection part 13 or the frame 14. The seat system 1 is thus, for example, fastened to the frame 14, which can also be referred to as a frame, wherein this frame encloses the electrical energy storage device 3. The frame 14 has, for example, two longitudinal parts 15, which can also be referred to as side parts. Furthermore, the frame 14 has, for example, two transverse parts 16, via which the longitudinal parts 15 are connected to one another. For example, the electrical energy storage device 3 extends in the vehicle transverse direction 11 at least partially, in particular predominantly or completely, between the longitudinal parts 15. Furthermore, the electrical energy storage device 3, as shown in Fig. 1, is partially covered outwardly in the vehicle transverse direction 11 by the frame 14, in particular by the longitudinal parts 15. The frame 14 thus forms a structure for accommodating the electrical energy storage device 3.

[0037] The lower seat fastening device 12 has at least one fastening element 17. In the exemplary embodiment, the seat fastening device 12 has a plurality of fastening elements 17, at least two fastening elements 17 or three fastening elements 17, but in the present case four fastening elements 17.

[0038] The respective fastening element 17 has a respective first fastening point 18 and a respective second fastening point 19 spaced from the first fastening point 18. Preferably, the respective first fastening point 18 is arranged at one end on the respective fastening element 17 and the respective second fastening point 19 is arranged at the other end on the respective fastening element 17. At the respective first fastening point 18, the respective fastening element 17 is held in an articulated manner, in particular directly, on the seat body 5, in particular on the base part 6, in a lower region 5a of the seat body 5 in the vehicle's vertical direction 4. Via the respective second fastening point 19, in particular at the respective second fastening point 19, the respective fastening element 17 is held in an articulated manner, for example directly, on the seat connection part 13 of the motor vehicle.This means that the seat system 1 is fastened to the seat connection part 13 via the respective second fastening point 19 by means of the respective fastening element 17. In this case, the exemplary embodiment provides that the respective fastening element 17 is fastened to the respective second fastening point 19 on the respective cross member 16. In particular, two front fastening elements 17 are fastened to a front cross member 16 in the vehicle longitudinal direction 10, and two rear fastening elements 17 are fastened to the rear cross member 16 in the vehicle longitudinal direction 10. In the example shown in . Fig. 1, it can be seen that the respective fastening element 17 at the respective second fastening point 19 engages around a tube formed by the frame 14, in particular by the respective cross member 16.

[0039] Fig. 2 shows the seating system 1 or the arrangement in a schematic front view. Fig. 3 shows a schematic partial sectional view of a section BB, which runs through the section reference points B, which in Fig. 2 are illustrated. Fig. 4 shows the seat system 1 or the arrangement in a schematic side view. In the present case, the fastening elements 17 are arranged on the outside of the seat system 1 or the seat body 5 in the vehicle transverse direction 11 or in the transverse extension direction of the seat system 1. Two of the fastening elements 17 are arranged on a first outer side of the seat system 1 or the seat body 5, and the other two of the fastening elements 17 are arranged on a second outer side of the seat system 1 or the seat body 5 facing away from the first outer side, wherein these outer sides are outer sides with respect to the vehicle transverse direction 11 or the transverse extension direction. The transverse extension direction preferably runs parallel to the vehicle transverse direction 11.

[0040] In order to be able to arrange the seat system 1 or the seat body 5 with the aforementioned adjustment capability and at the same time in a particularly space-efficient manner in the interior 2 of the motor vehicle, it is provided that the seat body 5, in particular the base part 6, extends downwards in the vehicle vertical direction 4 at least as far as the respective second fastening point 19, and in particular as far as the respective first fastening point 18, and preferably downwards beyond the respective second fastening point 19, and in particular the respective first fastening point 18. This is particularly well-suited in Fig. 3 and Fig. 4. A lower end of the seat body 5, in particular of the base part 6, in the vehicle vertical direction 4 is arranged at least as far down as the respective fastening point 19 and is arranged, for example, further down in the vehicle vertical direction 4 than a respective pivot axis about which the respective fastening element 17 at the respective second fastening point 19 is pivotable relative to the seat connection part 13. As in Fig. 4, this lower end 20 of the seat body 5 is covered by the seat connection part 13, particularly laterally with respect to the vehicle transverse direction 11. This allows for a particularly compact arrangement, whereby the distance extending in the vehicle vertical direction 4 between the seat body 5, in particular the base part 6, and the electrical energy storage device 3 can be kept particularly small. This allows the overall height of the motor vehicle to be kept particularly low, which has a positive effect on the aerodynamic drag of the motor vehicle.

[0041] As in Fig. 3 and Fig. 4, it is provided in the exemplary embodiment that the seat body 5, in particular the base part 6, extends further forward and further rearward in the vehicle longitudinal direction 10 than the respective second fastening point 19, and in particular the respective first fastening point 18, of the respective fastening element 17. This means that the seat body 5, in its longitudinal direction, which preferably runs in the vehicle longitudinal direction 10, projects beyond the second fastening points 19, and in particular the first fastening points 18. This also enables a particularly compact arrangement of the seat system 1 or its seat fastening in the interior 2 in the vehicle longitudinal direction 10. As can be seen particularly well from Fig. 2, it is further provided in the exemplary embodiment that the seat body 5, in particular the base part 6, extends further outwards in the vehicle transverse direction 11 than the respective second fastening point 19, and in particular than the respective first fastening point 18. In the present case, this means that the seat body 5, in particular the base part 6, projects beyond the second fastening points 19 on both sides in the vehicle transverse direction 11. In other words, the seat body 5 projects beyond the second fastening points 19, and in particular the first fastening points 18, in its transverse direction of extent. This thus also enables a particularly compact arrangement of the seat system 1 or its seat fastening in the interior 2 in the vehicle transverse direction 11.

[0042] In the exemplary embodiment, the seat system 1, in particular the seat attachment, has at least one upper seat attachment device 21, which is arranged further up in the vehicle vertical direction 4 than the lower seat attachment device 12. Via the upper seat attachment device 21, the seat system 1, in particular the seat body 5, is adjustably held on a second seat attachment part 22 of the motor vehicle or a vehicle structure of the motor vehicle, which second seat attachment part 22 is different from the seat attachment part 13. As in Fig. 1, the second seat connection part 22, which is arranged further up in the vehicle vertical direction 4 than the seat connection part 13, is tubular in this case. The upper seat fastening device 21 has at least one fastening element 23, which can also be referred to as a holding element to distinguish it from the respective fastening element 17. In the exemplary embodiment, two such fastening elements 23 are provided. However, only one such fastening element 23 can also be provided. The respective fastening element 23 has a respective first fastening point 24 and a respective second fastening point 25 spaced apart from the respective first fastening point 24. To distinguish them from the fastening points 18, 19, the fastening points 24, 25 can also be referred to as connection points.At the respective first fastening point 24, the respective fastening element 23 is held in an articulated manner on the seat body 5, in particular on the backrest part 8, for example directly, in an upper region 5b of the seat body 5 in the vertical direction 4 of the vehicle. Via the respective second fastening point 25, in particular at the respective second fastening point 25, the respective fastening element 23 is held in an articulated manner on the second seat connection part 22, for example directly.

[0043] In the exemplary embodiment, the seat body 5 extends further forward and further rearward in the vehicle's longitudinal direction 10 than the second fastening point 25. Furthermore, the seat body 5 projects outward beyond the second fastening point 25 in its transverse direction of extension. This allows the arrangement of the seat system 1 to be designed to be particularly compact.

[0044] Several possible embodiments of the fastening elements 17, 23 are explained below, which are referred to as the first embodiment, the second embodiment and the third embodiment. It can be provided that at least one of the fastening elements 17 is designed according to the first embodiment, at least one of the fastening elements 17 is designed according to the second embodiment and / or at least one of the fastening elements 17 is designed according to the third embodiment. However, it can also be provided that all of the fastening elements 17 are designed according to the first, the second or the third embodiment. At least one of the fastening elements 23 can be designed according to the first embodiment and / or at least one of the fastening elements 23 can be designed according to the second embodiment and / or at least one of the fastening elements 23 can be designed according to the third embodiment.However, it can also be provided that all fastening elements 23 are designed according to the first, second or third embodiment.

[0045] The three embodiments have in common that the respective fastening element 17, 23 each has a first fastening part 26, 27 having a respective first fastening point 18, 24 and a respective second fastening part 28, 29 having the respective second fastening point 19, 25. This means that the respective first fastening element 17 has a first fastening part 26 having the respective first fastening point 18 and a respective second fastening part 28 having the respective second fastening point 19. The respective fastening element 23 has a first fastening part 27 having the respective first fastening point 24 and a respective second fastening part 29 having the respective second fastening point 25.The respective second fastening part 28 can be moved translationally relative to the respective first fastening part 26 in order to adjust the seat system 1 or the seat body 5. Furthermore, the respective second fastening part 29 can be moved translationally relative to the respective first fastening part 27 in order to adjust the seat system 1 or the seat body 5. The translational movement is provided for the length adjustment of the respective fastening element 17 or 23, which in turn is provided for adjusting the seat system 1 or the seat body 5. Through the aforementioned length adjustment, different seat adjustment options for the seat system 1 or the seat body 5 can be realized. The three embodiments differ in particular with regard to a respective adjustment mechanism by means of which the respective length adjustment is effected.

[0046] In Fig. 5 shows a schematic detailed view C of the seating system 1 or the arrangement to illustrate the first embodiment. Fig. 5 illustrates the first embodiment using the front fastening element 17. However, it is also possible that, alternatively or additionally, the rear fastening element 17 and / or at least one of the fastening elements 23 is designed according to the first embodiment. In the first embodiment, one of the fastening parts 28, 29 of the respective fastening element 17, 23 has a plurality of receiving elements 30, and the other of the fastening parts 26, 27 of the respective fastening element 17, 23 has at least one, in particular spring-loaded, locking element 31. This is shown in Fig. 6 in a further detailed view D. In the present case, the respective first fastening part 26, 27 has the at least one locking element 31 and the respective second fastening part 28, 29 has the receiving elements 30. The locking element 31 can be received or accommodated in the respective receiving element 30, forming a respective locking connection. During the translational relative movement of the fastening parts 26, 28 or 27, 29, the locking element 31 can be removed from one of the receiving elements 30, in particular to enable the relative movement, and received in another of the receiving elements 30, in particular to secure a respective relative position of the fastening parts 26, 28 or 27, 29. This means that the seat fastening can comprise a locking connection with which the seat system 1 or the seat body 5 can be connected to the seat fastening.The locking element 31 arranged on the seat body 5 is thus rotatably mounted on the seat body 5. In the exemplary embodiment, the locking element 31 is spring-loaded to lock a respective locking position. In the present case, the respective locking element 30 is movably guided within the respective second fastening part 28, 29. In this case, the at least one locking element 30 is connected by means of a screw element 32 to a base body of the respective first fastening part 26, 27, which forms the respective first fastening point 18, 24. The respective second fastening part 28, 29 is, for example, formed in two parts, in particular in the form of two interconnected half-shells 33, 34, which, for example, encompass a tube of a vehicle-side fastening structure in the form of the seat connection part 13 or 22.The respective second fastening part 28, 29 can be designed as a cost-effective, two-part sheet metal part or as a welded part, or can be cast, milled, or an injection-molded part. In the present case, the half-shells 33, 34 are connected to one another by means of screw elements 35 through the intermediary of housing nuts 36, wherein the housing nuts 36 can be welded to the half-shell 33 that has the receiving elements 30. Since in the present case the respective first fastening part 26, 27 can be accommodated in this half-shell 33 in a translationally movable manner, this half-shell 33 can also be referred to as a housing. The first embodiment can also be referred to as an "adjustment catch." Fig. 7 shows the fastening element 17 or 23 according to the first embodiment in a schematic partial sectional view.

[0047] In Fig. 8, the seat system 1 or the arrangement is shown in a schematic detailed view E to illustrate the fastening element 17 or 23 according to the second embodiment. This is shown in Fig. 8 is illustrated by way of example using the fastening element 23, however, alternatively or additionally, at least one of the fastening elements 17 can be designed according to the second embodiment. If the fastening element 17 or 23 is designed according to the second embodiment, then one of the fastening parts 28 or 29 has a receiving space 37 and the other of the fastening parts 26 or 27 has at least one piston rod 38. In the exemplary embodiment, the piston rod 38 is arranged on the seat body side. This means that the respective first fastening part 26, 27 has the piston rod 38. Furthermore, in the exemplary embodiment, the receiving space 37 is arranged on the vehicle structure side or on the seat connection part side. This means that the second fastening part 28 or 29 has the receiving space 37, i.e. forms it. The piston rod 38 can also simply be referred to as a piston.The receiving space 37 is designed, for example, as a cylinder. The piston rod 38 is accommodated in the receiving space 37 so as to be translationally movable, in particular relative to the second fastening part 28 or 29. This translational movement can effect or bring about the translational relative movement between the fastening parts 26, 28 or 27, 29. Thus, the piston rod 38 can be arranged in the receiving space 37 to change the length of the fastening element 17 or 23. The piston rod 38 can be provided, for example, instead of the locking element 31. The piston rod 38 can be moved hydraulically, pneumatically, or electrically.

[0048] Fig.9 shows the seat system 1 or the arrangement in a schematic detailed view F to illustrate the third embodiment. The third embodiment is illustrated by way of example using a rear one of the fastening elements 17. However, it can also be provided that at least one of the front fastening elements 17 and / or the fastening element 23 is designed according to the third embodiment. If the fastening element 17 or 23 is designed according to the third embodiment, then the fastening element 17 or 23 has threads 39, 40. One of these threads 39 is formed by the first fastening part 26 or 27. The other of the threads 40 is formed by the second fastening part 28, 29. In other words, the first fastening part 26 or 27 has a first of the threads 39 and the second fastening part 27 or 28 has the second thread 40.The fastening parts 26, 28 and 27, 29 are connected to one another via the threads 39, 40 so as to be rotatable relative to one another, wherein the rotation of the fastening parts 26, 28 and 27, 29 is accompanied by the translational movement of the fastening parts 26, 28 and 27, 29. A length adjustment of the respective fastening element 17 or 23 can thus be implemented by means of a rotatable thread 40 in the housing and the threaded rod on an opposite side. In the exemplary embodiment, the respective first fastening part 26 or 27 is designed as a threaded rod which has an external thread in the form of the thread 39. The second thread 40 is designed here as an internal thread, which in the exemplary embodiment is formed by a nut 41, which is in particular rotatably movable.Furthermore, in the exemplary embodiment, the second fastening part 27 or 29 is formed by two shells, which can be referred to as the first shell part 42 and the second shell part 43. The respective shell can be understood in particular as a respective half-shell. The first shell part 42 forms a housing in which the nut 41 is arranged. The nut 41 is mounted so as to be rotationally movable within the housing, but is fixed in translation. Furthermore, the threaded rod is received in the housing, in particular movably, at least in some regions. The switching parts 42, 43 are connected to one another in the present case by means of screw elements 44 via a housing nut 45, which is connected, in particular welded, to the first shell part 42, for example.The second fastening part 27 or 28 is designed, for example, as a cost-effective two-part sheet metal part or as a welded part, or is cast, milled, or can be an injection-molded part. Thus, the housing of the seat fastening is designed, for example, at least partially as a two-part sheet metal part, welded part, milled part, or injection-molded part.

[0049] Overall, it can be seen that the seat body 5 is connected to the seat via three, four, or six seat fastenings in the form of fastening elements 17, 23. This means that there are at least three or four, but preferably six or more, rotatably mounted connection points to the seat body 5 and the vehicle structure in the form of seat connection parts 13, 22, which are preferably secured axially to the respective pivot point. List of reference symbols 1 seating system 2 Interior 3 energy storage 4 Vehicle vertical direction 5 seat body 5a lower area 5b upper area 6 Base part 7 Seat 8 Backrest part 9 Backrest area 10 Vehicle longitudinal direction 11 Vehicle transverse direction 12 lower seat fastening device 13 Seat connection part 14 frame 15 Longitudinal part 16 Cross section 17 Fastening element of the lower fastening device 18 first fastening point of the fastening element of the lower seat fastening device 19 second fastening point of the fastening element of the lower seat fastening device 20 lower end 21 upper seat fastening device 22 second seat connection part 23 Fastening element of the upper seat fastening device 24 first fastening point of the fastening element of the upper seat fastening device 25 second fastening point of the fastening element of the upper seat fastening device 26 first fastening part of the fastening element of the lower seat fastening device 27 first fastening part of the fastening element of the 28 upper seat fastening device second fastening part of the fastening element of the lower seat fastening device 29 second fastening part of the fastening element of the upper seat fastening device 30 receiving element 31 locking element 32 screw connection element 33 first half shell 34 second half shell 35 Screw connection element 36 Housing nut 37 Recording Room 38 Piston rod 39 first thread 40 second thread 41 mother 42 first shell part 43 second shell part 44 Screw connection element 45 Housing nut QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] US 2018 / 0 222 356 A1

[0002]

Claims

[1] Seating system (1) for a motor vehicle, comprising a seat body (5) which has at least one seat surface (6) intended for sitting by a person, and comprising at least one lower seat mounting device (12) by means of which the seating system (1) is adjustably held on a seat mounting part (13) of the motor vehicle, wherein the lower seat mounting device (12) has several mounting elements (17) which each have a respective first mounting point (18) at which the respective mounting element (17) is pivotally held on the seat body (5) in a lower area (5a) of the seat body (5) in the direction of the vehicle height (4), and a respective second mounting point (19) by means of which the respective mounting element (17) is pivotally held on the seat mounting part (13), characterized by , that the seat body (5) extends downwards in the upward direction of the vehicle (4) at least to the respective second attachment point (19). [2] Seating arrangement (1) according to claim 1, characterized by , that • the seat body (5) extends further forward and further rearward in the longitudinal direction of the vehicle (10) than the second attachment points (19) and / or • the seat body (5) extends further on both sides in the transverse direction of the vehicle (11) than the second attachment points (19). [3] Seating arrangement (1) according to claim 1 or 2, characterized by , that the respective fastening element (17) has a first fastening part (26) having the respective first fastening point (18) and a respective second fastening part (27) having the respective second fastening point (18), which is translationally movable relative to the respective first fastening part (26) for adjusting the seat assembly (1). [4] Seating arrangement (1) according to claim 3, characterized by , that • one of the fastening parts (26, 27) has at least one of the fastening elements (17) having several receiving elements (30) and the other of the fastening parts (26, 27) of the at least one fastening element (17) has at least one, in particular spring-loaded, detent element (31) which can be received in the respective receiving element (30) by forming a respective detent connection, and / or • one of the fastening parts (26, 27) has at least one of the fastening elements (17) having a receiving space (37) and the other of the fastening parts (26, 27) of the at least one fastening element (17) has at least one piston rod (38) which is translationally movable in the receiving space (37), and / or • the fastening parts (26, 27) of at least one of the fastening elements (17) each have a respective thread (39, 40) via which the fastening parts (26, 27) are connected to each other in a rotatable manner relative to each other, whereby the rotation of the fastening parts (26, 27) results in the translational movement of the fastening parts (26, 27) of the fastening element (17). [5] Seating arrangement (1) according to any one of the preceding claims, characterized byan upper seat mounting device (21) arranged in the vehicle's vertical direction (4) higher than the lower seat mounting device (12), by means of which the seat assembly (1) is adjustable to a second seat mounting part (22) of the motor vehicle, wherein the upper seat mounting device (21) has at least one fastening element (23) which has a first fastening point (24) at which the fastening element (23) of the upper seat mounting device (21) is pivotally held on the seat body (5) in an upper area (5b) of the seat body (5) in the vehicle's vertical direction (4), and a second fastening point (25) at which the fastening element (23) of the upper seat mounting device (21) is pivotally held on the second seat mounting part (22). [6] Seating arrangement (1) according to claim 5, characterized by , that • the seat body (5) extends further forward and further rearward in the longitudinal direction of the vehicle (10) than the second mounting point (25) of the upper seat mounting device (21) and / or • the seat body (5) extends outwards beyond the second attachment point (25) of the upper seat attachment device (21) in its transverse direction. [7] Seating arrangement (1) according to claim 5 or 6, characterized by , that the fastening element (23) of the upper seat fastening device (21) has a first fastening part (27) having the first fastening point (24) of the upper seat fastening device (21) and a second fastening part (29) having the second fastening point (25) of the upper seat fastening device (21), which is movable translationally relative to the first fastening part (27) of the upper seat fastening device (21) for adjusting the seat assembly (1). [8] Seating arrangement (1) according to claim 7, characterized by , that • one of the fastening parts (27, 29) of the upper seat fastening device (21) has several receiving elements (30) and the other of the fastening parts (27, 29) of the upper seat fastening device (21) has at least one, in particular spring-loaded, detent element (31) which can be received in the respective receiving element (30) of one fastening part (27, 29) of the upper seat fastening device (21) by forming a respective detent connection, or • one of the fastening parts (27, 29) of the upper seat fastening device (21) has a receiving space (37) and the other of the fastening parts (27, 29) of the upper seat fastening device (21) has a piston rod (38) which is translationally movable in the receiving space (37) of one of the fastening parts (27, 29) of the upper seat fastening device (21), or • the fastening parts (27, 29) of the upper seat fastening device (21) each have a respective thread (39, 40) via which the fastening parts (27, 29) of the upper seat fastening device (21) are rotatably connected to each other relative to each other, wherein the rotation of the fastening parts (27, 29) of the upper seat fastening device (21) results in the translational movement of the fastening parts (27, 29) of the upper seat fastening device (21). [9] Arrangement of a seating system (1) in an interior (2) of a motor vehicle, wherein the seating system (1) comprises a seat body (5) which has at least one seat surface (6) intended for sitting by a person, and at least one lower seat mounting device (12) by means of which the seating system (1) is adjustably held on a seat mounting part (13) of the motor vehicle, wherein the lower seat mounting device (12) has several mounting elements (17), each of which has a respective first mounting point (18) at which the respective mounting element (17) is pivotally held on the seat body (5) in a lower area (5a) of the seat body (5) in the direction of the vehicle's height (4), and a respective second mounting point (19) by means of which the respective mounting element (17) is pivotally held on the seat mounting part (13), characterized by, that the seat body (5) extends downwards in the upward direction of the vehicle (4) at least to the respective second attachment point (19). [10] Arrangement according to claim 9, characterized by , that the seat attachment part (13) is designed as a frame (14) within which an electrical energy storage device (3) of the motor vehicle extends at least partially.

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