vehicle seat

Abstract

Vehicle seat (20) comprising a first seat surface (21), a first backrest (22), at least one side bolster (24), a first joint arrangement (31) and a second joint arrangement (32), the first joint arrangement (31) defining a first axis of rotation (41) and the second joint arrangement (32) defining a second axis of rotation (42), the first backrest (22) being rotatable relative to the seat surface (22) via the first joint arrangement (31) and via the second joint arrangement (32), the second axis of rotation (42) being spaced apart from the first axis of rotation (41), the first backrest (22) extending in a first spatial position (P1) intended for driving between an upper end (112) and a lower end (111) and having a rear side (220) in the first spatial position (P1), the first backrest (22) having a flat surface (223) on its rear side (220),which first backrest (22) can be rotated into a second spatial position (P2) via the second joint arrangement (32), in which second spatial position (P2) , - the reverse side (220) is positioned at the top, - the flat surface (223) of the back (220) is arranged at least partially horizontally on the top of the backrest (22), and - a first height distance (60) exists between the first seat surface (21) and the first backrest (22), which first height distance (60) is at least 10 cm everywhere, wherein the first seat surface (21) has a highest seat surface point (210), and wherein the first pivot axis (41) is defined below the highest seat surface point (210), wherein the first joint arrangement (31) is formed on the at least one side bolster (24), wherein the second joint arrangement (32) is formed on the at least one side bolster (24), wherein the position of at least one side bolster (24) remains unchanged when the first backrest (22) is rotated about the second joint arrangement (32) relative to the seat surface (22), and wherein the first backrest (22) as a whole can be rotated relative to the seat surface (22) via the first joint arrangement (31) and via the second joint arrangement (32).

Description

[0001] The invention relates to a vehicle seat, a vehicle seat arrangement and a vehicle.

[0002] DE 10 2013 007 184 A1, JP S58 - 78233 U, JP S57 - 85332 U, JP H08 - 183378 A show a motor vehicle seat with a seat surface and a backrest, wherein a flap is provided in the backrest.

[0003] JP S54 - 181418 U, FR 2 944 740 A1 and FR 2 944 745 B1 show a seat in which a backrest with the upper part can be pivoted backwards.

[0004] JP 2000 - 62 509 A shows a vehicle seat with a seat surface, a backrest and a hinge plate with a first hinge and a second hinge, wherein the backrest is rotatable forwards and backwards via the first hinge and is also rotatable via the second hinge.

[0005] US 2019 / 0 359 088 A1 shows two seats that can be moved relative to each other, whereby a person sitting in the back can put his legs on the front seat.

[0006] US 2007 / 0 126 273 A1 shows a backrest which has adjustable elements on the back.

[0007] DE 198 11 190 A1 shows a foldable vehicle seat.

[0008] DE 10 2006 043 205 A1 shows a vehicle seat with a rotatable and essentially movable backrest that can be converted into an armrest position.

[0009] DE 20 2020 104 559 U1 shows a vehicle seat with a split backrest in which an upper partial backrest can be pivoted into a horizontal folding position.

[0010] GB 2 395 118 A shows a vehicle seat arrangement with a split backrest which can be converted into a table.

[0011] It is therefore an object of the invention to provide a new vehicle seat with an adjustable backrest, a new vehicle seat assembly with such a vehicle seat and a new vehicle with such a vehicle seat assembly.

[0012] This problem is solved by the subject matter of the independent patent claims.

[0013] A vehicle seat has a first seat surface, a first backrest, a first joint arrangement and a second joint arrangement, which first joint arrangement defines a first axis of rotation and which second joint arrangement defines a second axis of rotation, which first backrest is rotatable via the first joint arrangement and via the second joint arrangement relative to the seat surface, which second axis of rotation is spaced from the first axis of rotation, which first backrest extends between an upper end and a lower end in a first spatial position intended for driving. The entire backrest can thus be rotated via both the first joint arrangement and the second joint arrangement, and this enables an advantageous spatial position for a person located behind the vehicle seat.

[0014] According to a preferred embodiment, the second joint arrangement is arranged higher than the first joint arrangement. This allows for a different relative rotation.

[0015] According to a preferred embodiment, in the at least one first spatial position, the lower end is arranged at a first height and the upper end at a second height, and the second joint arrangement is located at a third height, which is between the first height and the second height. This allows a portion of the backrest to be rotated forward and a portion of the backrest to be rotated backward during rotation.

[0016] According to a preferred embodiment, the first height is defined as 0% in percentage terms, and the second height is defined as 100% in percentage terms, and the third height is provided in a first range, which first range lies between 20% and 100%, preferably between 25% and 80%, and more preferably between 30% and 70%. The second joint arrangement is therefore not at the very bottom and preferably not at the very top.

[0017] The first seat surface has a highest point, and the first axis of rotation is defined by the first joint arrangement below the highest point. This allows for good adjustability to the desired spatial position for driving.

[0018] According to a preferred embodiment, the second axis of rotation is defined by the second joint arrangement above the highest seat surface, with the second axis of rotation preferably being defined at least 20 cm above the highest seat surface, more preferably at least 30 cm above the highest seat surface. This provides sufficient space for stretching the legs.

[0019] The vehicle seat has at least one side bolster, and the second joint arrangement is formed on the at least one side bolster. The side bolster thus enables good rotation of the entire backrest.

[0020] The first joint arrangement is formed on the at least one side panel. The side panel can thus act structurally on both the first joint arrangement and the second joint arrangement.

[0021] According to a preferred embodiment, the side bolster is rotatable relative to the first seat surface by means of the first joint arrangement. The side bolster can thus rotate with the first joint arrangement, thereby remaining in the correct position for the second joint arrangement.

[0022] The first backrest can be rotated into a second spatial position via the second joint arrangement. In this second spatial position, a first height difference exists between the first seat surface and the first backrest. This first height difference is at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm, and particularly preferably at least 30 cm. This allows one leg to be extended for a semi-seated position and provides a suitable space for the legs.

[0023] The first backrest has a rear side in the first spatial position, and the first backrest can be rotated into the second spatial position via the second joint arrangement, in which second spatial position the rear side is arranged at the top. The rear side can be made harder and flatter than the front side, making it more suitable as a table or storage space.

[0024] The first backrest has a flat surface on the rear side, and it can be rotated into the second spatial position via the second joint arrangement. In this second spatial position, the flat surface of the rear side is arranged at least partially horizontally on the upper side of the backrest. This is advantageous, for example, to prevent a laptop from sliding off the back when the vehicle is stationary.

[0025] According to a preferred embodiment, the first backrest has a storage area with a recess, and the recess extends downward in the second spatial position. Such a recess is advantageous, for example, for safely placing a cup.

[0026] According to a preferred embodiment, - the first joint arrangement (31), - the second joint arrangement (32), or - the first joint arrangement (31) and the second joint arrangement (32) have a pivot bearing.

[0027] According to a preferred embodiment, a headrest is attached to the backrest. This allows the headrest to rotate along with the backrest.

[0028] The first backrest is rotatable as a whole relative to the seat surface via the first joint arrangement and via the second joint arrangement.

[0029] According to a preferred embodiment, the first backrest is rotatable from the first spatial position relative to the seat surface via the second joint arrangement such that the upper end has a forward movement portion and the lower end a rearward movement portion. Thus, the upper region is moved forward by the rotation, and the rear region is moved upward.

[0030] A vehicle seat arrangement comprises such a first vehicle seat and a second vehicle seat, the second vehicle seat having a second seat surface and a second backrest and being arranged behind the first vehicle seat. This allows a person in the second vehicle seat to make full use of the first vehicle seat.

[0031] According to a preferred embodiment, the distance between the first vehicle seat and the second vehicle seat is adjustable. This allows a person sitting in the vehicle seat to adjust to a comfortable position, and the backrest of the first vehicle seat can be adjusted to a suitable position as a table or storage space.

[0032] According to a preferred embodiment, the distance between the first seat surface and the second seat surface can be adjusted to be less than 30 cm, preferably less than 20 cm, and particularly preferably less than 10 cm. This allows for largely continuous leg support.

[0033] A vehicle with such a seating arrangement is ideal for resting, and this increases safety.

[0034] According to a preferred embodiment, the vehicle has a windshield, a first headrest is assigned to the first backrest, and a second headrest is assigned to the second backrest. The first backrest can be rotated into a third spatial position via the second joint arrangement such that, from the second vehicle seat, the windshield is not obscured by the first backrest at the height of the second headrest. This allows a person in the second seat to enjoy a view or watch a film in a drive-in cinema from the rear. The third spatial position preferably corresponds to the second spatial position.

[0035] Further details and advantageous developments of the invention will become apparent from the exemplary embodiments described below and illustrated in the drawings, which are in no way to be understood as limiting the invention, as well as from the dependent claims. It is understood that the features mentioned above and those to be explained below can be used not only in the respective combinations specified, but also in other combinations or on their own. It shows: Fig. 1 in a schematic side view a vehicle with a vehicle seat arrangement in a first spatial position, Fig. 2 in schematic side view the vehicle of Fig. 1 with the vehicle seat arrangement in a second spatial position, Fig. 3 shows a schematic representation of a vehicle seat of the vehicle seat arrangement of Fig. 1, and Fig. 4 in a schematic view from behind the vehicle seat of the vehicle seat arrangement of Fig. 1 in the second spatial position.

[0036] In the following, identical or functionally identical parts are provided with the same reference symbols and are usually described only once. The description builds on each figure to avoid unnecessary repetition.

[0037] Fig. 1 shows a schematic representation of a vehicle 10 with a vehicle seat assembly 18, a windshield or front window 12, a dashboard 14 and a vehicle floor 16. The vehicle seat assembly 18 includes a vehicle seat 20 and a vehicle seat 70, which are arranged one behind the other.

[0038] The vehicle seat 20 has a seat surface 21, a backrest 22, a headrest 23, a joint arrangement 31 and a joint arrangement 32. The seat surface 21 is referred to in English as the “seat base” and is usually upholstered, but can also be designed as a plastic shell.

[0039] The vehicle seat 70 has a seat surface 71, a backrest 72 and a headrest 73.

[0040] The joint assembly 31 defines a rotation axis 41, and the joint assembly 32 defines a rotation axis 42.

[0041] The joint assemblies 31, 32 can be designed as pure pivot bearings. However, they can also have a folding arrangement that allows for translational displacement in addition to rotation, with the rotation axis, for example, changing position during rotation. Such folding arrangements have, for example, several joint rods and / or a pivot bearing. The joint assemblies 31, 32 can at least partially have a detent for predetermined detent positions.

[0042] The backrest 22 is rotatable relative to the seat surface 22 via the first joint arrangement 31 and the second joint arrangement 32. The two axes of rotation 41, 42 are spaced apart from each other.

[0043] In the exemplary embodiment, a side cheek 24 and a further side cheek (not shown) are provided on the opposite side of the backrest 22.

[0044] The joint arrangement 32 is formed on the side cheek 24 or on the side cheeks, and preferably the joint arrangement 31 is also formed on the side cheek 24.

[0045] Preferably, the side bolster 24 is rotatable relative to the seat surface 21 by the joint arrangement 31. Further preferably, the position of the side bolster 24 remains unchanged when the backrest 22 rotates about the joint arrangement 32 relative to the seat surface 21.

[0046] An adjustment arrangement 25 is provided for adjusting the vehicle seat 20, and an adjustment arrangement 75 is provided for adjusting the vehicle seat 70. The adjustment options include, for example, at least one of the adjustment options from the group consisting of: - Height adjustment of the seat 21, - Tilting movement of the seat 21, - Moving the seat 21 forwards or backwards, - rotational movement around the joint arrangement 31, and - Rotational movement around the joint arrangement 32.

[0047] The joint arrangement 32 is arranged higher than the joint arrangement 31, and this leads to a different relative movement in which the upper region of the seat surface 22 can be folded forward and the lower region of the seat surface 22 can be folded backward, or vice versa.

[0048] The joint arrangement 32 can also be designed to limit the possible angle of rotation range.

[0049] The first seat surface 21 has a highest seat surface 210, the height of which is indicated by a dashed line. The joint arrangement 31 is preferably arranged below the highest seat surface 210, and the joint arrangement 32 is preferably arranged above the highest seat surface 210, more preferably at least 20 cm above the highest seat surface 210, and particularly preferably at least 30 cm above the highest seat surface 210.

[0050] In the exemplary embodiment, the backrest 22 is in a first spatial position P1 intended for driving and extends in a direction indicated by a dashed line 28. The seat surface 21 extends in a direction indicated by a dashed line 27, which is preferably substantially horizontal. The angle 29 between the lines 27 and 28 in the spatial position P1 is preferably an obtuse angle, i.e., it is greater than 90°. The vehicle seat 20 is preferably the vehicle seat for the front passenger and / or the vehicle seat for the driver. In the spatial position P1, an occupant on the vehicle seat 70 can only partially see the windshield 12, since the field of vision is at least partially covered by the vehicle seat 20. The backrest 22 has a rear side 220, which faces the vehicle seat 70.

[0051] In the vehicle seat arrangement 18, the distance of the vehicle seat 20 relative to the vehicle seat 70 can be specified in a variable manner, for example by a displacement of the vehicle seat 20, by a displacement of the vehicle seat 70, or by a displacement of the vehicle seat 20 and the vehicle seat 70.

[0052] Preferably, the distance between the first seat surface 21 and the second seat surface 71 is adjustable such that it is less than 30 cm, preferably less than 20 cm and particularly preferably less than 10 cm.

[0053] Fig. 2 shows in a representation corresponding Fig. 1 the vehicle 10 with the vehicle seat arrangement 18.

[0054] In contrast to the spatial location P1 of Fig. 1, the vehicle seat arrangement 18 has assumed a spatial position P2. Here, the backrest 22 has been rotated via the second joint arrangement 32, and the rear side 220 preferably has a horizontal orientation, at least in some areas. In addition, the seat surfaces 21 and 71 have been moved toward each other, and this allows an occupant 91 sitting on the vehicle seat 70 to assume a comfortable position in which their legs can be stretched between the seat surface 21 and the backrest 22. The occupant 91 can thus comfortably place their legs on the front seat surface 21. In addition, the rotated backrest 22 offers a storage area and can be used as a table. In the exemplary embodiment, the occupant 91 is working on a laptop 92, which laptop 92 is placed on the backrest 22. Using the rear side 220 of the backrest 22 is advantageous because it can be designed to be flat, at least in some areas, without affecting seating comfort.

[0055] In the exemplary embodiment, the backrest 22 has a storage area 221 with a recess 222 on the rear side 220. In the spatial position P2, the recess 222 extends downward and can therefore be used, for example, to position a cup or other object.

[0056] The occupant 91, who sits on the vehicle seat 70 and whose head is at the level of the headrest 73, can see the windshield 12 from the second vehicle seat 70 by rotating the entire backrest 22 in the spatial position P2, without the windshield being covered by the backrest 22 or the headrest 23.

[0057] Between the seat surface 21 and the backrest 22, there is preferably a height distance 60, at least in some areas, which height distance 60 is at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm, and particularly preferably at least 30 cm. This allows the legs of the occupant 91 sitting on the vehicle seat 70 to be comfortably stretched between the seat surface 21 and the backrest 22. The height distance 60 is preferably at least 10 cm everywhere, preferably at least 15 cm, more preferably at least 20 cm, and particularly preferably at least 30 cm. The height distance is the distance in the z-direction of the vehicle, i.e., vertically upwards.

[0058] In the exemplary embodiment, the side bolsters 24 enable rotation of the entire backrest 22 around the joint arrangement 31 as well as around the joint arrangement 32.

[0059] Alternatively, the joint arrangement 32 can be implemented, for example, via a pin (not shown) or another type of pivot bearing on the B-pillar or at another location on the body.

[0060] The step between the seat surfaces 21 and 71 can also be selected so that the occupant can put his legs down.

[0061] In the exemplary embodiment, the backrest 22 has a flat surface 223 on the rear side 220. The backrest 22 can be rotated via the second joint arrangement 32 into the spatial position P2, in which spatial position P2 the flat surface 223 is arranged at least partially horizontally on the upper side of the backrest 22.

[0062] Fig. 3 shows the vehicle seat 20 in an enlarged view. The spatial position corresponds to the spatial position P1 of Fig. 1.

[0063] The backrest 22 has a lower end 111 and an upper end 112, and extends between the lower end 111 and the upper end 112. The lower end 111 is at a first height H1, the upper end 112 is at a second height H2, and the hinge assembly 32 is at a third height H3. The third height H3 lies between the first height H1 and the second height H2.

[0064] The first height H1 can be defined as 0% in percentage terms, the second height H2 as 100%, and the third height H3 preferably lies in a range between 20% and 100%, preferably between 25% and 80%, and more preferably between 30% and 70%. In the exemplary embodiment, the third height H3 is approximately 50%.

[0065] In the exemplary embodiment, lateral stops 226 and a lower stop 225 are arranged on the rear side of the backrest 22. These reduce the risk of objects sliding off the backrest 22 in the spatial position P2. The stops 225, 226 can be designed as steps or rounded projections. They can also be designed to be retractable to prevent interference with the occupant sitting behind them in the position P1.

[0066] Fig. 4 shows the vehicle seat 20 of Fig. 1 and Fig. 2 in the spatial position P2. The free space between the seat 21 and the backrest 22 is visible.

[0067] The position of the stops 226 and 225 is recognizable, and they enable objects to be safely placed on the backrest 22 even if the surface 225 is not arranged horizontally. The stops 226, 225 can also be provided all around the outer edge of the backrest 22.

Claims

[1] A vehicle seat (20) comprising a first seat surface (21), a first backrest (22), at least one side bolster (24), a first joint arrangement (31), and a second joint arrangement (32), which first joint arrangement (31) defines a first axis of rotation (41), and which second joint arrangement (32) defines a second axis of rotation (42), which first backrest (22) is rotatable relative to the seat surface (22) via the first joint arrangement (31) and the second joint arrangement (32), which second axis of rotation (42) is spaced apart from the first axis of rotation (41), which first backrest (22) extends between an upper end (112) and a lower end (111) in a first spatial position (P1) intended for driving and has a rear side (220), which first backrest (22) has a flat surface (223) on the rear side (220),which first backrest (22) is rotatable into a second spatial position (P2) via the second joint arrangement (32), in which second spatial position (P2), - the back (220) is arranged at the top, - the flat surface (223) of the rear side (220) is arranged at least in sections horizontally on the upper side of the backrest (22), and - a first height distance (60) exists between the first seat surface (21) and the first backrest (22), which first height distance (60) is at least 10 cm everywhere, wherein the first seat surface (21) has a highest seat surface point (210), and wherein the first axis of rotation (41) is defined below the highest seat surface point (210), wherein the first joint arrangement (31) is formed on the at least one side cheek (24), wherein the second joint arrangement (32) is formed on the at least one side cheek (24), wherein the position of the at least one side cheek (24) remains unchanged upon rotation of the first backrest (22) about the second joint arrangement (32) relative to the seat surface (22), and wherein the first backrest (22) as a whole is rotatable relative to the seat surface (22) via the first joint arrangement (31) and via the second joint arrangement (32). [2] Vehicle seat (20) according to claim 1, wherein the second joint arrangement (32) is arranged higher than the first joint arrangement (31). [3] Vehicle seat (20) according to claim 1 or 2, wherein in the at least one first spatial position (P1) the lower end (111) is arranged at a first height (H1) and the upper end (112) at a second height (H2), and wherein the second joint arrangement (32) is located at a third height (H3), which third height (H3) is between the first height (H1) and the second height (H2). [4] Vehicle seat (20) according to claim 3, wherein the first height (H1) is defined as 0% in percentage terms and the second height (H2) as 100% in percentage terms, and wherein the third height (H3) is provided in a first range, which first range is between 20% and 100%. [5] A vehicle seat according to claim 4, wherein the first range is between 25% and 80%. [6] A vehicle seat according to claim 4 or 5, wherein the first range is between 30% and 70%. [7] Vehicle seat (20) according to claim 6, wherein the second axis of rotation (42) is defined by the second joint arrangement (32) above the highest seat surface point (210), wherein the second axis of rotation (42) is preferably defined at least 20 cm above the highest seat surface point (210). [8] Vehicle seat (20) according to claim 7, wherein the second axis of rotation (42) is defined at least 30 cm above the highest seat surface point (21). [9] Vehicle seat (20) according to one of the preceding claims, in which the side cheek (24) is rotatable relative to the first seat surface (21) by means of the first joint arrangement (31). [10] Vehicle seat (20) according to one of the preceding claims, wherein the first height distance (60) is at least 15 cm everywhere, preferably at least 20 cm. [11] Vehicle seat (20) according to claim 10, wherein the first height distance (60) is at least 30 cm everywhere. [12] Vehicle seat (20) according to one of the preceding claims, in which the first backrest (22) has a storage area (221) with a recess (222), and in which the recess (222) extends downwards in the second spatial position (P2). [13] Vehicle seat (20) according to one of the preceding claims, in which - the first joint arrangement (31), - the second joint arrangement (32), or - the first joint arrangement (31) and the second joint arrangement (32) have a pivot bearing. [14] Vehicle seat (20) according to one of the preceding claims, in which the first backrest (22) is rotatable from the first spatial position (P1) via the second joint arrangement (32) relative to the seat surface (22) in such a way that the upper end (112) has a forward movement component and the lower end (111) has a rearward movement component. [15] Vehicle seat arrangement (18) comprising a first vehicle seat (20) according to any one of the preceding claims and a second vehicle seat (70), which second vehicle seat (70) has a second seat surface (71) and a second backrest (72) and is arranged behind the first vehicle seat (20). [16] Vehicle seat arrangement (18) according to claim 15, wherein the distance of the first vehicle seat (20) relative to the second vehicle seat (70) is variable. [17] Vehicle seat arrangement (18) according to claim 15 or 16, wherein the distance of the first seat surface (21) from the second seat surface (71) is adjustable such that it is less than 30 cm, preferably less than 20 cm and particularly preferably less than 10 cm. [18] Vehicle (10) comprising a vehicle seat arrangement (18) according to one of claims 15 to 17. [19] Vehicle (10) according to claim 18, which has a windshield (12), in which a first headrest (23) is assigned to the first backrest (22) and a second headrest (73) is assigned to the second backrest (72), and in which the first backrest (22) can be rotated into a third spatial position (P2) via the second joint arrangement (32) in such a way that from the second vehicle seat (70) at the level of the second headrest (73) the windshield (12) is not covered by the first backrest (22).

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