Vehicle seat for a motor vehicle, motor vehicle

Abstract

The invention relates to a vehicle seat (1) for a motor vehicle, comprising a seat section (2), a backrest (3), and a display device (8), wherein the backrest (3) is pivotably mounted about a pivot axis between a first and a second backrest end position and can be locked in several backrest positions, and wherein one of the backrest positions corresponds to a predetermined child seat mounting position. The display device (8) is assigned to the backrest (3) and is designed to indicate, depending on the current backrest position, whether the current backrest position corresponds to or deviates from the predetermined child seat mounting position. The invention further relates to a motor vehicle with such a vehicle seat.

Description

[0001] The invention relates to a vehicle seat for a motor vehicle, comprising a seat section, a backrest, and a display device, wherein the backrest is pivotably mounted about a pivot axis between a first backrest end position and a second backrest end position and can be locked in several backrest positions, and wherein one of the backrest positions corresponds to a predetermined child seat mounting position. The invention further relates to a motor vehicle with such a vehicle seat.

[0002] Vehicle seats of the type mentioned above are already known from the prior art. For example, a vehicle seat of this type is known from patent application WO 2005 / 021318 A1. This includes an adjustment device for setting a seat position within a specific range of motion in the vehicle seat and a display device for indicating a set seat position within that specific range of motion.

[0003] The invention is based on the objective of creating an improved vehicle seat that, in particular, enables a user to reliably adjust the child seat mounting position on the vehicle seat.

[0004] The problem underlying the invention is solved by a vehicle seat with the features of claim 1. According to the invention, the display device is assigned to the backrest and is designed such that, depending on the current backrest position, it indicates whether the current backrest position corresponds to or deviates from the predetermined child seat mounting position. The backrest position is adjustable by pivoting it about the axis of rotation, in particular by means of a manually and / or electrically operated adjustment device. The backrest can be locked in several positions, and the backrest position is generally adjustable at any point, in particular continuously, between the first and second end positions. One of the adjustable backrest positions corresponds to the predetermined child seat mounting position.The child seat mounting position is thus located between the first and second backrest positions and is characterized by the fact that a child seat mounted on the vehicle seat is optimally supported by the vehicle seat, particularly by the backrest. Specifically, the child seat mounting position is characterized by the fact that a side of the child seat facing the backrest, especially the rear, is essentially parallel to the backrest when the child seat is mounted on the vehicle seat, particularly on the seat cushion, as intended. Preferably, the side of the child seat facing the backrest lies flat against the backrest when the child seat is mounted on the vehicle seat as intended and the backrest is adjusted to the child seat mounting position.Proper installation of the child seat means, in particular, securing the child seat to the vehicle seat using a suitable fastening system, such as one known as "Isofix" or "i-Size". The indicator device associated with the backrest shows, depending on the current backrest position, whether it corresponds to the specified child seat mounting position. Alternatively, the indicator device shows whether the current backrest position deviates from the specified child seat mounting position. In other words, the indicator device is designed to show both whether the current backrest position corresponds to the specified child seat mounting position and whether the current backrest position deviates from the specified child seat mounting position.Alternatively, the display device can indicate either conformity with the child seat mounting position or deviation from it, remaining silent in the former case when a deviation is present and in the latter case when conformity is present. The display device allows a user to reliably determine whether the current backrest position corresponds to or deviates from the child seat mounting position. The invention therefore enables the user to reliably adjust the child seat mounting position on the vehicle seat.

[0005] A preferred embodiment of the invention provides that the child seat mounting position is characterized by a predetermined child seat safety angle, which lies between a longitudinal extension of the backrest and a geodesically vertical axis when the vehicle seat is installed in the motor vehicle as intended. When the backrest position corresponds to the child seat mounting position, the child seat safety angle is thus located between the longitudinal extension of the backrest and the geodesically vertical axis of the motor vehicle. The child seat safety angle is therefore not defined as a relative angle between the backrest and the seat portion of the vehicle seat, but rather as an absolute angle between the backrest and the vertical axis.In particular, the child seat safety angle is chosen such that the current backrest position, when aligned with the child seat safety position, corresponds to a backrest position defined in UN ECE Regulation 129. This has the advantage that, when the backrest position aligns with the child seat mounting position, optimal support of a child seat designed according to this standard is ensured on the vehicle seat.

[0006] A preferred embodiment of the invention provides that the child seat safety angle, when the vehicle seat is installed as intended, is at least 24° and at most 26° with respect to the geodesic vertical axis. In particular, the child seat safety angle, when the vehicle seat is installed as intended, is exactly 25° with respect to the geodesic vertical axis. This ensures particularly reliable support of the child seat against the vehicle seat, especially a full contact between the back of the child seat and the backrest of the vehicle seat.

[0007] A preferred embodiment of the invention provides that the display device includes an indicator element connected to the backrest, which indicates whether the backrest position corresponds to the child seat insertion position. Additionally or alternatively, the indicator element visually indicates any deviation of the backrest position from the child seat insertion position. The indication can be of any type, for example, acoustic, visual, haptic, and / or electrical, with the indication being provided directly or indirectly by the indicator element. In any case, the indicator element serves to detect the current backrest position, particularly with respect to the geodetic vertical axis. For this purpose, the indicator element is associated with the backrest and mechanically connected to it, in particular rigidly. A pivoting of the backrest about its axis of rotation therefore results in a corresponding displacement of the indicator element.

[0008] A preferred embodiment of the invention provides that the indicator element optically displays whether the backrest position corresponds to the child seat insertion position. Additionally or alternatively, the indicator element also optically displays any deviation. The display device is thus designed as an optical display device, wherein the indicator element directly indicates the correspondence or deviation. The indicator element is preferably attached to the backrest in the region of the axis of rotation and, in particular, has an optically perceptible marking, for example, a colored area, hatching, a symbol, or the like. The optical display of the correspondence or deviation is based on the position of the marking. This allows for a particularly simple design of the optical display device.

[0009] A preferred embodiment of the invention provides that the optically operating display device has a cover element associated with the seat section, which largely covers / conceals the movement path of the indicator element and has a recess only in the area of ​​the child seat installation position, through which the indicator element is visible in the child seat installation position. The cover element is associated with the seat section and has the recess. For example, the cover element is part of a trim element that at least partially encompasses the seat section. Alternatively, the cover element is part of an interior trim panel of the motor vehicle. The indicator element is preferably only visible through the recess of the cover element. Pivoting the backrest about the axis of rotation leads to a relative displacement of the indicator element with respect to the recess.The optical marker is arranged on the indicator element such that it at least partially, and in particular completely, fills the recess when the backrest position corresponds to the child seat installation position. When the backrest position deviates from the child seat installation position, the recess is at least partially, and in particular completely, free of the optical marker. For example, the indicator element is disc-shaped, with the optical marker forming a visually highlighted circular sector on the indicator element. Alternatively, the optical marker is formed on an outer circumferential surface of the disc-shaped indicator element.

[0010] A preferred embodiment of the invention provides that the optically operating display device has a cover element associated with the seat part, wherein the indicator element is completely concealed / covered by the cover element when the backrest position corresponds to the child seat mounting position and is at least partially free of it when the backrest position deviates from the child seat mounting position. Alternatively to the embodiment described above, the cover element completely conceals / covers the indicator element when the backrest position corresponds to the child seat mounting position. When the backrest position deviates from the child seat mounting position, the indicator element is at least partially, and in particular completely, free of the cover element. In other words, the indicator element is not visible when the backrest position corresponds to the child seat mounting position and is at least partially visible when it deviates from it.This allows for a particularly visually unobtrusive design of the display device.

[0011] A preferred embodiment of the invention provides that the display device is designed as an acoustic, optical, or haptic display device, wherein the indicator element is designed as a switching element which interacts with a contact element connected to the seat part, either tactilely or non-tactilely, at least when the position corresponds to that of the child seat, in order to activate the display device. The indicator element thus only indirectly indicates whether the child seat is in the correct position or not. For this purpose, the indicator element is the switching element that interacts with the contact element connected to the seat part. For example, the indicator element is an electrical switching element that can be actuated by tactile means, particularly mechanically, or non-tactile means, particularly magnetically.The contact element actuates the switching element at least when the backrest position matches the child seat mounting position; for example, the contact element opens or closes the switching element. Actuation of the switching element activates the indicator device to show, acoustically, visually, or haptically, whether the backrest position matches the child seat mounting position or whether it deviates from it.

[0012] The display device has, for example, at least one electrically controllable display element. In particular, at least one light source is provided to indicate conformity. The light source indicates conformity either positively or negatively. For example, the light source illuminates when conformity is present and goes out when there is a discrepancy. Alternatively, the light source illuminates when there is a discrepancy and goes out when conformity is present. In particular, the display device has three display elements designed as light sources, wherein a first display element indicates conformity of the backrest position with the child seat insertion position. Adjacent to the first display element are, on the one hand, a second display element and, on the other hand, a third display element, which indicate a discrepancy of the backrest position from the child seat insertion position.The second indicator shows a deviation in one direction, and the third indicator shows a deviation in the opposite direction. The indicators can be positioned anywhere on the vehicle seat. This allows them to be placed discreetly, yet clearly visible to the user when adjusting the backrest position. For example, the indicators can be located on the cover. Alternatively, they can be located on the seat itself, for instance, next to a seatbelt buckle.

[0013] The motor vehicle with the features of claim 9 is characterized by the vehicle seat according to the invention. This results in the advantages already mentioned.

[0014] Further advantages and preferred features and combinations of features will become apparent in particular from the foregoing and from the claims. The invention will now be explained in more detail with reference to the drawings. To this end, we show... Fig. 1 a schematic representation of a vehicle seat according to the invention in a first embodiment, Fig. 2 a schematic representation of a vehicle seat according to the invention in a second embodiment, Fig. 3 a schematic representation of a vehicle seat according to the invention in a third embodiment, Fig. 4 a schematic representation of a vehicle seat according to the invention in a fourth embodiment, and Fig. 5 a schematic representation of a vehicle seat according to the invention in a fifth embodiment.

[0015] The Fig. Figure 1 shows a vehicle seat 1 for a motor vehicle (not shown in detail). The vehicle seat 1 has a seat section 2 and a backrest 3. The backrest 3 is pivotally mounted about an axis of rotation perpendicular to the plane of the drawing and can be locked in several reclining positions. Three different reclining positions of the backrest 3 are shown side by side, with the centrally shown position corresponding to a predefined child seat mounting position. The child seat mounting position is characterized by a child seat safety angle 4, which lies between a longitudinal extension 5 of the backrest 3 and a geodesically vertical axis 6 when the vehicle seat 1 is installed in the motor vehicle as intended.

[0016] A child seat 7 is installed on vehicle seat 1. In the centrally shown child seat mounting position, the child seat safety angle is at least 24° and at most 26° with respect to the vertical axis 6, preferably 25°. It can be seen that in the child seat mounting position, one side of the child seat 7 facing the backrest 3 lies flat against the backrest 3. This ensures optimal support of the child seat 7 on the vehicle seat 1.

[0017] The vehicle seat 1 has a display device 8 which is assigned to the backrest 3 and is designed to indicate, depending on the current backrest position, whether the current backrest position corresponds to or deviates from the specified child seat mounting position.

[0018] Below the depicted backrest positions, a corresponding state of the display device 8 is shown, which in the illustrated first embodiment operates optically. The display device 8 has an indicator element 10 that is substantially concealed or covered by a cover element 9, but is at least partially visible through a recess 11 in the cover element 9. The cover element 9 is associated with the seat part 2, whereas the indicator element 10 is connected to the backrest 3. Pivoting the backrest 3 thus results in a corresponding displacement of the indicator element 10 relative to the cover element 9.

[0019] The indicator element 10 is disc-shaped and has a visually perceptible marking 12, which is shown here in white. It can be seen that, in the centrally shown position where the backrest position corresponds to the child seat installation position, the marking 12 completely fills the recess 11. In the backrest positions shown on the left and right, however, there is a deviation of the backrest position from the child seat installation position. It can be seen that the back of the child seat 7 does not lie flat against the backrest 3 in the left and right backrest positions shown. The indicator device 8 shows this deviation from the child seat installation position accordingly, by the marking 12 only partially filling the recess 11.

[0020] The Fig. Figure 2 shows a second embodiment of the vehicle seat 1, the differences of which compared to the first embodiment will be discussed below. In the second embodiment, the display device has three indicator elements 13, 14, and 15 designed as light sources. The indicator element 10 is designed as a switching element (not shown in detail). This element interacts with a contact element connected to the seat part 2 (also not shown in detail). In the child seat position, the switching element and the contact element interact to control the centrally located first indicator element 13. The second indicator element 14 and the third indicator element 15 are arranged adjacent to the first indicator element 13. These are controlled according to the direction of the deviation when the backrest position deviates from the child seat position.

[0021] The Fig. Figure 3 shows a third embodiment of the vehicle seat 1, which is an alternative configuration of the first embodiment. Again, only the differences compared to the first embodiment are discussed. According to this embodiment, the recess 11 is located laterally on the cover element 9. The optical marking 12 is formed on an outer circumferential surface of the disc-shaped indicator element 10.

[0022] The Fig. Figure 4 shows a fourth embodiment of the vehicle seat 1, which is an alternative configuration of the second embodiment. Again, only the differences compared to the second embodiment are discussed. According to this embodiment, the indicator elements 13, 14, and 15 are formed on a seat belt buckle cover 16, which is associated with the seat part 2. The indicator elements 13, 14, and 15 are thus arranged particularly discreetly on the seat part 2.

[0023] The Fig. Figure 5 shows a fifth embodiment of the vehicle seat 1. Again, only the differences compared to the embodiments described above are discussed. According to this embodiment, the cover element 9 is part of the vehicle's interior trim. The indicator element 10 is in the form of an optical marker 12, which is formed on a side surface of the backrest 3 at an end facing away from the seat section 2. On the left, a deviation of the backrest position from the child seat mounting position is shown. It can be seen that the indicator element 10 is at least partially free of the cover element 9 in this position. In the child seat mounting position of the backrest 3 shown on the right, the indicator element 10 is completely concealed or covered by the cover element 9. This creates a particularly discreet indicator device 8. Reference symbol list 1 vehicle seat 2 Seat section 3 Backrest 4 child seat safety angles 5 Longitudinal extent 6 Vertical axis 7 Child seat 8 Display device 9 Cover element 10 Indicator element 11 recess 12 Mark 13 first display element 14 second display element 15 third display element 16 Seatbelt buckle cover QUOTES INCLUDED IN THE DESCRIPTION

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

[0000] WO 2005 / 021318 A1

[0002]

Claims

[1] Vehicle seat (1) for a motor vehicle, comprising a seat part (2), a backrest (3) and a display device (8), wherein the backrest (3) is pivotably mounted about a pivot axis between a first backrest end position and a second backrest end position and can be locked in several backrest positions, and wherein one of the backrest positions corresponds to a predetermined child seat mounting position, characterized by , that the display device (8) is assigned to the backrest (3) and is designed in such a way that, depending on the current backrest position, it indicates whether the current backrest position corresponds to or differs from the specified child seat mounting position. [2] Vehicle seat according to claim 1, characterized by, that the child seat mounting position is characterized by a predetermined child seat safety angle (4) which lies between a longitudinal extension (5) of the backrest (3) and a geodetically vertical vertical axis (6) when the vehicle seat (1) is installed in the motor vehicle as intended. [3] Vehicle seat according to claim 2, characterized by , that the child seat safety angle (4) when the vehicle seat (1) is installed as intended shall be at least 24° and at most 26° with respect to the geodetic vertical axis. [4] Vehicle seat according to any one of the preceding claims, characterized by , that the display device (8) has an indicator element (10) connected to the backrest (3) which indicates the conformity of the backrest position with the child seat insertion position. [5] Vehicle seat according to claim 4, characterized by, that the indicator element (10) visually indicates the agreement of the backrest position with the child seat insertion position. [6] Vehicle seat according to claim 5, characterized by , that the optically operating display device (8) has a cover element (9) assigned to the seat part, which largely conceals / covers the movement path of the indicator element (10) and only has a recess (11) in the area of ​​the child seat mounting position, through which the indicator element (10) is visible in the child seat mounting position. [7] Vehicle seat according to claim 5, characterized by, that the optically operating display device (8) has a cover element (9) associated with the seat part, wherein the indicator element (10) is completely concealed / covered by the cover element (9) when the backrest position corresponds to the child seat receiving position and is at least partially free from it when the backrest position deviates from the child seat receiving position. [8] Vehicle seat according to claim 4, characterized by , that the display device (8) is designed as an acoustic, optical or haptic display device (8), wherein the indicator element (10) is designed as a switching element which interacts with a contact element connected to the seat part, at least in the child seat receiving position, either touching or non-contacting, to activate the display device. [9] Motor vehicle with a vehicle seat (1) according to any one of the preceding claims.

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