Seat for a vehicle and vehicle

Abstract

The present application relates to a seat for a vehicle, wherein the seat comprises a seat frame assembly, a first backrest and a second backrest which are pivotably connected to the seat frame assembly, wherein: the first backrest and the second backrest can be rotated independently of each other or jointly relative to the seat frame assembly about a first pivot axis, and at least a part of the seat frame assembly, the first backrest and the second backrest can be jointly rotated about a second pivot axis for realizing a zero-pressure adjustment function of the seat. Furthermore, the present application also relates to a vehicle comprising the seat for a vehicle.

Description

Technical Field

[0001] This application generally relates to the technical field of vehicle seats. More specifically, this application relates to a seat for a vehicle and a vehicle. Background Technology

[0002] Row seats used in vehicles, such as rear seats in a 4-2-4 layout, typically have two outer quarter seats (referred to as quarter seats) and a middle seat (referred to as a middle seat). These two quarter seats can be independently adjusted between different usage positions, such as a design position and a zero-pressure position. This transition from the design position to the zero-pressure position or vice versa is called the zero-pressure adjustment function of the respective seat.

[0003] During the zero-pressure adjustment of the quarter-seat, the middle half of the seat generally remains stationary, especially in the designed position. In this situation, a significant angle or positional difference will appear between the backrest of the quarter-seat in the zero-pressure position and the backrest of the half-seat in the designed position. Specifically, the backrest of the half-seat in the designed position may be relatively upright, while the backrest of the quarter-seat in the zero-pressure position will be more reclined. This restricts the shoulder movement of the occupant in the quarter-seat, limiting sufficient legroom. Furthermore, the more upright backrest of the half-seat may obstruct the lateral view of the occupant, affecting their overall comfort. Utility Model Content

[0004] The purpose of this application is to provide a seat for a vehicle that overcomes at least one deficiency in the prior art, thereby improving the functionality and flexibility of the seat.

[0005] According to a first aspect of this application, a seat for a vehicle is provided. The seat includes a seat frame assembly, a first backrest and a second backrest pivotally connected to the seat frame assembly, wherein: the first backrest and the second backrest are rotatable independently or jointly relative to the seat frame about a first pivot axis, and at least a portion of the seat frame assembly, the first backrest, and the second backrest are rotatable jointly about a second pivot axis to achieve a zero-pressure adjustment function of the seat.

[0006] According to some embodiments of this application, the seat includes a first backrest drive device configured to drive the first backrest to rotate about a first pivot axis.

[0007] According to some embodiments of this application, the seat includes a backrest lock configured to lock a first backrest and a second backrest together, such that the second backrest can be moved by the first backrest.

[0008] According to some embodiments of this application, in the unlocked state of the backrest lock, the first backrest and the second backrest can rotate independently about the first pivot axis.

[0009] According to some embodiments of this application, the seat includes a second backrest drive mechanism configured to drive the second backrest to rotate about a first pivot axis.

[0010] According to some embodiments of this application, the seat frame assembly includes a first seat frame coupled to the first backrest and a second seat frame coupled to the second backrest, wherein: the seat further includes a seat frame driving device configured to drive the first seat frame to rotate about a second pivot axis; and the second seat frame is configured not to rotate about the second pivot axis.

[0011] According to some embodiments of this application, the first backrest is pivotally connected to the first seat frame, and the side of the second backrest closest to the first backrest is pivotally connected to the first seat frame, such that the pivot axis of the first backrest relative to the first seat frame and the pivot axis of the second backrest relative to the first seat frame are collinear with each other and form the first pivot axis.

[0012] According to some embodiments of this application, the side of the second backrest closest to the first backrest is pivotally connected to the first seat frame via a first hinge bracket, wherein the first hinge bracket is fixedly connected to the first seat frame, and the second backrest is pivotally connected to the first hinge bracket.

[0013] According to some embodiments of this application, the first backrest is connected to the side panel of the first seat frame via an adjuster connecting plate, wherein the adjuster connecting plate is fixedly connected to the side panel, the first backrest is pivotally connected to the adjuster connecting plate via an adjuster, and the first hinge bracket is fixed to the side panel of the first seat frame and / or the adjuster connecting plate.

[0014] According to some embodiments of this application, the side of the second backrest away from the first backrest is pivotally connected to the second seat frame via a second hinge bracket, wherein the pivot axis between the second backrest and the second hinge bracket is collinear with the first pivot axis, and the pivot axis between the second hinge bracket and the second seat frame is collinear with the second pivot axis.

[0015] According to some embodiments of this application, the second pivot axis is defined by the rear tube of the first seat frame.

[0016] According to some embodiments of this application, the rear tube of the second seat frame is coaxially arranged with the rear tube of the first seat frame, wherein: the first hinge bracket is pivotally connected to the rear tube of the second seat frame, and / or the second hinge bracket is pivotally connected to the rear tube of the second seat frame.

[0017] According to some embodiments of this application, the seat frame assembly is configured as an integral seat frame adapted to a first backrest and a second backrest, and the seat further includes a seat frame drive device configured to drive the seat frame to rotate about a second pivot axis.

[0018] According to some embodiments of this application, the first backrest and the second backrest are pivotally connected to the seat frame, such that the pivot axis of the first backrest relative to the seat frame and the pivot axis of the second backrest relative to the seat frame are collinear with each other and form the first pivot axis.

[0019] According to some embodiments of this application, the second pivot axis is defined by the rear tube of the seat frame.

[0020] According to some embodiments of this application, the first backrest is a quarter-backrest of the rear seat of a vehicle, and the second backrest is a half-backrest of the rear seat of a vehicle.

[0021] According to some embodiments of this application, the second backrest can be rotated independently of the first backrest about a first pivot axis to a flat position to serve as a center armrest for the rear seat.

[0022] According to a second aspect of this application, a vehicle is proposed, the vehicle including at least one seat for a vehicle as described in the first aspect of this application.

[0023] It should be noted that aspects of this application described with respect to one embodiment can be included in other different embodiments, although these other different embodiments are not specifically described. In other words, features of all embodiments and / or any embodiments can be combined in any manner and / or combination, as long as they do not contradict each other. Attached Figure Description

[0024] A better understanding of various aspects of this application will be achieved by reading the following detailed description in conjunction with the accompanying drawings, in which:

[0025] Figure 1 A partial schematic diagram of a vehicle seat according to the prior art is shown;

[0026] Figure 2A vehicle seat according to one embodiment of this application is schematically shown;

[0027] Figure 3 Schematic illustration based on Figure 2 The first and second backrests of the seat rotate forward together around the first pivot axis;

[0028] Figure 4 Schematic illustration based on Figure 2 The first and second backrests of the seat rotate backward together around the first pivot axis;

[0029] Figure 5 Schematic illustration based on Figure 2 The second backrest of the seat is rotated to the flat position;

[0030] Figure 6 Schematic illustration based on Figure 2 The zero-pressure position of the seat;

[0031] Figure 7 Schematic illustration based on Figure 2 The zero-pressure adjustment process of the seat;

[0032] Figure 8 Schematic illustration based on Figure 2 A partial schematic diagram of the seats;

[0033] Figure 9 Schematic illustration based on Figure 2 A partial schematic diagram of the seat, where relative to Figure 8 The first seat frame, the first backrest, and the second backrest rotate together around the second pivot axis to rotate backward;

[0034] Figure 10 Schematic illustration based on Figure 2 An exploded view of part of the seat's structure;

[0035] Figure 11 schematically shown Figure 10 The first hinge bracket of the seat in the middle;

[0036] Figure 12 Schematic illustration based on Figure 2 Partial exploded view of the seat;

[0037] Figure 13 Schematic illustration including according to Figure 2 The rear seat assembly of the seats. Detailed Implementation

[0038] The present application will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present application. However, it should be understood that the present application can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present application more complete and to fully illustrate the scope of protection of the present application to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0039] It should be understood that the terminology used in this specification is for describing specific embodiments only and is not intended to limit this application. All terms used in this specification (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail.

[0040] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0041] When a component is described in the specification as being "on", "attached" to, "connected" to, "joined" to, or "in contact" with another component, the component may be directly located on, attached to, connected to, joined to, or in contact with the other component, or there may be an intermediate component present.

[0042] In this specification, the terms "first," "second," "third," etc., are used for ease of explanation only and are not intended to be limiting. Any technical feature represented by "first," "second," "third," etc., is interchangeable.

[0043] In the specification, spatial relation terms such as "above," "below," "front," "back," "top," and "bottom" describe the relationship between one feature and another in the accompanying drawings. It should be understood that spatial relation terms include not only the orientation shown in the drawings but also the different orientations of the device during use or operation. For example, when the device in the drawings is inverted, a feature previously described as "below" other features can now be described as "above" other features. The device can also be oriented in other ways (rotated 90 degrees or in other orientations), in which case the relative spatial relationships will be explained accordingly.

[0044] Figure 1A partial schematic diagram of a vehicle seat 1' according to the prior art is shown. The vehicle seat 1' shown may be a rear seat of a vehicle, which may include a quarter seat 2' on the left and a half seat 3' on the right. Figure 1 The seat frame 21' and backrest 22' of the quarter position 2' and the seat frame 31' and backrest 32' of the half position 3' are visible. The backrest 22' of the quarter position 2' can be mounted on its seat frame 21' and can rotate relative to its seat frame 21'; and the backrest 32' of the half position 3' can also be mounted on its seat frame 31' and can rotate relative to its seat frame 31'.

[0045] exist Figure 1 In the vehicle seat 1' shown, with the seat frame 21' of the quarter seat 2' in the designed position, the pivot axis of the backrest 22' of the quarter seat 2' relative to the seat frame 21' is aligned with the pivot axis of the backrest 32' of the bi-quarter seat 3' relative to the seat frame 31'. Therefore, when the backrest 22' of the quarter seat 2' rotates around the first pivot axis A1' to achieve comfort adjustment, the backrest 32' of the bi-quarter seat 3' can be driven by the backrest 22' of the quarter seat 2' and rotates around the first pivot axis A1' in conjunction with the movement of the quarter seat 2'. For this purpose, a backrest lock (not shown) can be provided, configured to lock and rigidly connect the backrest 22' of the quarter seat 2' and the backrest 32' of the bi-quarter seat 3' to each other.

[0046] Furthermore, the seat frame 21' of quarter seat 2' can rotate around the second pivot axis A2', while the seat frame 31' of half seat 3' is fixed relative to the vehicle and cannot move. During the zero-pressure adjustment of quarter seat 2', the seat frame 21' and backrest 22' of quarter seat 2' can rotate together around the second pivot axis A2' to allow quarter seat 2' to enter and leave the zero-pressure position. However, since the seat frame 31' of half seat 3' is fixed relative to the vehicle, during the zero-pressure adjustment of quarter seat 2', half seat 3' (especially its backrest 32') cannot rotate around the second pivot axis A2' in conjunction with the movement of the backrest 22' of quarter seat 2' and jointly perform zero-pressure adjustment. Therefore, in this type of vehicle seat 1', since the bi-position 3' (especially its backrest 32') cannot be adjusted for zero pressure in conjunction with the quarter-position 2', during the zero-pressure adjustment of the quarter-position 2', the backrest lock (not shown) is generally unlocked, keeping the bi-position 3' stationary while the quarter-position 2' adjusts for zero pressure independently. In this situation, there will be an angular or positional difference between the backrest 22' of the quarter-position 2' in the zero-pressure position and the stationary backrest 32' of the bi-position 3'. In particular, the stationary backrest 32' of the bi-position 3' is relatively upright, while the backrest 22' of the quarter-position 2' in the zero-pressure position is more reclined. This will restrict the shoulders of the occupant sitting in the quarter-position 2', resulting in insufficient stretching space. Furthermore, the more upright backrest 32' of the bi-position 3' may also obstruct the lateral view of the occupant sitting in the quarter-position 2', affecting the occupant's riding experience.

[0047] Figure 2 An exemplary embodiment of a vehicle seat 1 according to this application is schematically illustrated. For clarity, only the frame of the seat 1 is shown in the figures, while seat foam and upholstery are not shown. The seat 1 includes a seat frame assembly 2, a first backrest 3 and a second backrest 4 pivotally connected to the seat frame assembly 2. The first backrest 3 and the second backrest 4 can rotate independently or jointly relative to the seat frame assembly 2 about a first pivot axis A1, and the first backrest 3, the second backrest 4, and at least a portion of the seat frame assembly 2 can rotate together about a second pivot axis A2 to achieve a zero-pressure adjustment function of the seat 1.

[0048] Seat 1 may be, for example, the rear seat of the vehicle, wherein the first backrest 3 may be the backrest of the quarter seat 5 in the rear seat, and the second backrest 4 may be the backrest of the half seat 6 in the rear seat.

[0049] like Figure 3 and Figure 4 As shown, the rotation of the first backrest 3 and / or the second backrest 4 about the first pivot axis A1 can, for example, be used to achieve comfort adjustment of the respective seats. Figure 3The left figure shows the state in which the first backrest 3 and the second backrest 4 rotate forward together about the first pivot axis A1. For clarity, Figure 3 The right figure shows the design positions of the first backrest 3 and the second backrest 4 with dashed lines (e.g. Figure 2 (as shown in the image), while the first backrest 3 and the second backrest 4 are shown in solid lines in a comfortable forward-adjusted position as they rotate forward together around the first pivot axis A1. Figure 4 This illustrates the state in which the first backrest 3 and the second backrest 4 are rotated rearward together about the first pivot axis A1, or in other words, the comfort-adjusted rear position. Within the scope of this application, "front" specifically refers to the direction the occupant faces when seat 1 is in the desired seating posture. Correspondingly, "rear" specifically refers to the direction behind the occupant when seat 1 is in the desired seating posture.

[0050] In some embodiments, the seat 1 may include a first backrest drive device (not shown), which may be configured to drive a first backrest 3 to rotate about a first pivot axis A1. To achieve coordinated movement of the first backrest 3 and the second backrest 4, such as... Figure 3 and Figure 4 As shown, the seat 1 may include a backrest lock 7, which can have a locked state and an unlocked state. In the locked state, the backrest lock 7 locks the first backrest 3 and the second backrest 4 together, so that the second backrest 4 (especially without its own drive mechanism) can be driven by the first backrest 3 and rotate together with the first backrest 3 about a first pivot axis A1. In the unlocked state, the first backrest 3 and the second backrest 4 can move independently of each other. For example, the first backrest 3 can rotate independently about the first pivot axis A1 to achieve individual comfort adjustment of the quarter seat 5. As another example, the second backrest 4 can (e.g., under external force) rotate independently about the first pivot axis A1 to... Figure 5 The flattened position shown can be used, for example, as a center armrest for the rear seats.

[0051] In some embodiments, the seat 1 may further include a second backrest drive (not shown), configured to drive the second backrest 4 to rotate about the first pivot axis A1. Particularly when a first backrest drive is provided for the first backrest 3 and a second backrest drive is provided for the second backrest 4, the seat 1 may not have the backrest lock 7 described above. When needed, the first backrest 3 and the second backrest 4 can rotate independently but synchronously about the first pivot axis A1 under the drive of the first backrest drive and the second backrest drive, respectively, thereby achieving synchronous comfort adjustment of the first backrest 3 and the second backrest 4. This synchronous comfort adjustment of the first backrest 3 and the second backrest 4 is particularly beneficial to the seating experience of the occupant sitting in the quarter seat 5, for example, avoiding the problems caused by the misalignment of the first backrest 3 and the second backrest 4 described above. Furthermore, the second backrest 4 can also rotate independently about the first pivot axis A1 under the drive of the second backrest drive. Figure 5 The flattened position shown can be used, for example, as a center armrest for the rear seats.

[0052] In addition to the backrest adjustment and rotation process described above around the first pivot axis A1, such as Figure 6 and Figure 7 As shown, in the seat 1 of this application, at least a portion of the first backrest 3, the second backrest 4, and the seat frame assembly 2 can rotate together around the second pivot axis A2 to achieve the zero-pressure adjustment function of the seat 1. By allowing the first backrest 3 and the second backrest 4 to rotate together around the second pivot axis A2 during the zero-pressure adjustment of the seat 1, angular misalignment or positional misalignment between the first backrest 3 and the second backrest 2 can be advantageously avoided in the zero-pressure position of the seat 1. This overcomes the inconvenience caused by such positional misalignment mentioned above, such as the occupant leaning against the first backrest 3 having their shoulder movement space restricted and their side view obstructed by the misaligned second backrest 2, thereby improving the occupant's user experience.

[0053] Within the scope of this application, during the zero-pressure adjustment of the seat 1, it is possible not only for the first backrest 3, the second backrest 4, and at least a portion of the seat frame assembly 2 to rotate together about the second pivot axis A2. If necessary, for example, rotation of the first backrest 3 and / or the second backrest 4 (preferably both the first backrest 3 and the second backrest 4) about the first pivot axis A1 relative to the seat frame assembly 2, as described above, can also be performed additionally. In other words, the rotation of the first backrest 3, the second backrest 4, and at least a portion of the seat frame assembly 2 together about the second pivot axis A2 can form at least a portion of the movement required to achieve the zero-pressure adjustment function of the seat 1.

[0054] In some embodiments, such as from Figure 6 and Figure 7As can be most clearly seen, the seat frame assembly 2 may include a first seat frame 21 coupled to the first backrest 3 and a second seat frame 22 coupled to the second backrest 4. When the first backrest 3 is a quarter-position 5 backrest and the second backrest 4 is a half-position 6 backrest, the first seat frame 21 may be a quarter-position 5 seat frame, and the second seat frame 22 may be a half-position 6 seat frame. Here, the quarter-position 5 seat frame, i.e., the first seat frame 21, may be configured to be adjustable to, for example, achieve a zero-pressure function for the quarter-position 5. For this purpose, the seat 1 may include a seat frame drive device (not shown in detail), which may be configured to drive the first seat frame 21 to rotate about the second pivot axis A1. In this embodiment, the half-position 6 seat frame, i.e., the second seat frame 22, is non-adjustable and therefore, in particular, cannot rotate about the second pivot axis A2. The second seat frame 22 may be fixed to a structure such as a vehicle floor, seat base, seat rail assembly, seat turntable, etc.

[0055] Furthermore, such as Figure 8 and Figure 9 As shown, the first backrest 3 can be pivotally connected to the first seat frame 21, particularly the side panel 211 of the first seat frame 21, for example, via an adjuster connecting plate 31. The adjuster connecting plate 31 can be fixedly connected to the side panel 211, while the first backrest 3 can be pivotally connected to the adjuster connecting plate 31 via an adjuster 32, thereby defining the pivot axis of the first backrest 3 relative to the first seat frame 21 by the adjuster 32. In some embodiments, the adjuster 32 may include a fixed member and a rotating member rotatable relative to the fixed member. The fixed member of the adjuster 32 can be fixedly connected to the adjuster connecting plate 31, while the rotating member of the adjuster 32 can be fixedly connected to a corresponding portion of the first backrest 3. Thus, when the rotating member of the adjuster 32 rotates relative to the fixed member, it can drive the first backrest 3 to pivot relative to the adjuster connecting plate 31, or rather, relative to the first seat frame 21. The rotation of the rotating member of the adjuster 32 relative to the fixed member can be driven, for example, by a motor (not shown).

[0056] Furthermore, the side of the second backrest 4 closest to the first backrest 3 can be pivotally connected to the first seat frame 21, particularly the side panel 211 of the first seat frame 21. The first backrest 3 and the second backrest 4 can be positioned on the first seat frame 21 such that the pivot axis of the first backrest 3 relative to the first seat frame 21 and the pivot axis of the second backrest 4 relative to the first seat frame 21 are collinear and form a first pivot axis A1. This ensures that when the first seat frame 21 pivots about the second pivot axis A2 to any position, the first backrest 3 and the second backrest 4 always have a consistent first pivot axis A1 relative to the seat frame assembly 2, particularly the first seat frame 21. This allows the first backrest 3 and the second backrest 4 to always be aligned with each other when necessary, providing a comfortable seating experience. Furthermore, with the above arrangement, not only when the first seat frame 21 is in the designed position, but also when the first seat frame 21 is pivoted around the second pivot axis A2 to any position, the second backrest 4, which does not have a matching second backrest drive device, can be driven by the first backrest 3 (e.g. via the backrest lock 7) and rotate together around the first pivot axis A1, thereby providing a wider range of seat postures without the need for additional drive devices for the second backrest 4.

[0057] In some embodiments, such as Figures 8 to 10 As shown, the side of the second backrest 4 closest to the first backrest 3 can be pivotally connected to the first seat frame 21, for example, to the side panel 211 or the adjuster connecting plate 31, via a first hinge bracket 41. Here, the first hinge bracket 41 can be fixedly connected to the first seat frame 21, and the second backrest 3 can be pivotally connected to the first hinge bracket 41. Figure 10 and Figure 11 As shown, in some embodiments, the first hinge bracket 41 may have a backrest mounting hole 411. The second backrest 4, particularly the frame portion 42 of the second backrest 4 near the first backrest 3, can be pivotally connected to the first hinge bracket 41 via the backrest mounting hole 411 using appropriate mounting devices (e.g., step bolts 421, T-nuts 422 cooperating with the step bolts 421, and bushings 423). The first hinge bracket 41 may also have at least one, in this case, two seat bolt mounting holes 412. The first hinge bracket 41 can be assembled and secured to the first seat frame 21, in this case, the side plate 211 of the first seat frame 21, via the seat bolt mounting holes 412 using corresponding seat bolts 424. The two seat bolt mounting holes 412 can be spaced apart from each other to ensure a stable connection.

[0058] Figure 10 The side plate 211 and the rear tube 50 at the quarter position 5 can also be seen (see Figure 8 and Figure 9The first seat 21 can pivot about the rear tube 50 via the corresponding hole 213. In other words, the second pivot axis A2 can be defined by the rear tube 50. Furthermore, the rear tube 60 of the bisection 6 can be coaxially arranged with the rear tube 50 of the quarter section 5 and thus coaxial with the second pivot axis A2, for example, see Figure 8 and Figure 9 .like Figure 11 As shown, the first hinge bracket 41 may also include a rear tube mounting hole 413, and the first hinge bracket 41 can be mounted by corresponding mounting devices (such as step bolts 425, etc.). Figure 12 The T-nut 426 and bushing 427, which are welded into the rear tube 60 of the bisection 6, are pivotally connected to the rear tube 60 of the bisection 6 via the rear tube mounting hole 413. When the first seat frame 21 pivots relative to the rear tube 50 of the quarter section 5 (i.e., about the second pivot axis A2) for, for example, zero-pressure adjustment, the first hinge bracket 41, which is fixedly connected to the first seat frame 21, can correspondingly pivot relative to the rear tube 60 of the bisection 6 (i.e., also about the second pivot axis A2) and drive the second backrest 4, thereby achieving synchronous movement of the second backrest 4 and the first backrest 3 during zero-pressure adjustment.

[0059] To ensure the stability of the second backrest 4, in some embodiments, such as Figure 12 As shown, the side of the second backrest 4 away from the first backrest 3 can be pivotally connected to the second seat frame 22 via a second hinge bracket 42, such that the pivot axis between the second backrest 4 and the second hinge bracket 42 is collinear with the first pivot axis A1, and the pivot axis between the second hinge bracket 42 and the second seat frame 22 is collinear with the second pivot axis A2. On one hand, the second hinge bracket 42 can be pivotally connected to the rear tube 60 of the bisection 6 via corresponding mounting devices (e.g., stepped bolts 428, T-nuts 429 welded to the rear tube 60 of the bisection 6, and bushings 430). The pivot axis of the second hinge bracket 42 relative to the rear tube 60 of the bisection 6 corresponds to the second pivot axis A2. On the other hand, the second hinge bracket 42 can be pivotally connected to the skeleton portion 43 of the second backrest 4 away from the first backrest 3 via corresponding mounting devices (e.g., stepped bolts 431 and bushings 432). The pivot axis of the second backrest 4 relative to the second hinge bracket 42 corresponds to the first pivot axis A1. Furthermore, as... Figure 12 As shown, the seat frame of the bisection 6, i.e., the second seat frame 22, can be fixed to the front beam 52 and the rear beam 53 of the base 51 of the quarter section 5, for example by welding.

[0060] Through the above-described embodiments of this application, even when the seat frame of the bisection 6, i.e. the second seat frame 22, is immovable (especially unable to rotate around the second pivot axis A2 as the first seat frame 21), it is advantageous to achieve linkage between the backrest of the bisection 6 (second backrest 4) and the backrest of the quarter section 5 (first backrest 3) during the zero-pressure adjustment process.

[0061] In other embodiments, unlike the previously described independent first seat frame 21 and second seat frame 22, the seat 1 may include a single seat frame. This single seat frame may, for example, extend from the first backrest 3 to the second backrest 4, thereby forming an integral seat frame shared by the first backrest 3 and the second backrest 4, adapted to both the first backrest 3 and the second backrest 4. The seat 1 may also include a seat frame drive mechanism for the seat frame, the seat frame drive mechanism being configured to drive the seat frame to move, particularly to rotate about a second pivot axis A2. The second pivot axis A2 may also be defined here, for example, by the rear tube of the seat frame. The first seat frame 21 and the second seat frame 22 may be pivotally connected to the seat frame respectively, such that the pivot axis of the first backrest 21 relative to the seat frame and the pivot axis of the second backrest 22 relative to the seat frame are collinear with each other and form the first pivot axis A1. On the one hand, since both the first seat frame 21 and the second seat frame 22 are connected to the seat frame, when the seat frame is driven to move by the seat frame drive device, the first seat frame 21 and the second seat frame 22 can move together with the seat frame, for example, they can rotate together around the second pivot axis A2 to achieve the zero-pressure adjustment function of the seat. On the other hand, by making the pivot axis of the first backrest 21 relative to the seat frame and the pivot axis of the second backrest 22 relative to the seat frame collinear with each other, it can also be ensured that the first backrest 3 and the second backrest 4 can always be aligned with each other when necessary to provide a comfortable riding experience.

[0062] In the case where seat 1 includes a first seat frame 21 and a second seat frame 22 that are independent of each other, it is also conceivable that the second seat frame 22 also has its own seat frame drive mechanism, so that the first seat frame 21 and the second seat frame 22 can move independently of each other, for example, rotate about the second pivot axis A2. In this case, the quarter seat 5 including the first seat frame 21 and the first backrest 3 and the bipartite seat 6 including the second seat frame 22 and the second backrest 4 can be constructed as separate seats. However, since the bipartite seat 6 needs to be equipped with an additional drive mechanism and corresponding transmission mechanism, this implementation may have a higher overall cost.

[0063] It is understood that the second pivot axis A2 does not necessarily have to be defined by the corresponding rear tube of the seat 1. Within the scope of this application, the second pivot axis A2 can be understood as the pivot axis of the movable seat frame of the seat 1 relative to the seat frame drive mechanism or base of the seat 1. When the seat frame of the bisection 6 (i.e., the second seat frame 22) is immovable, the second pivot axis A2 can be fixed, particularly with respect to a fixed reference system, such as the vehicle floor, seat base, seat rail assembly, seat turntable, etc., during zero-pressure adjustment. However, when the seat 1 has an integral seat frame shared by the first backrest 3 and the second backrest 4, and when the seat frame of the bisection 6 (i.e., the second seat frame 22) is movable, the second pivot axis A2 itself can also be movable with respect to a fixed reference system, such as the vehicle floor, seat base, seat rail assembly, seat turntable, etc., during zero-pressure adjustment. For example, the seat frame drive mechanism of the seat 1 can have a "four-bar" configuration, so the second pivot axis A2 may also change its position with the rotation of the corresponding link.

[0064] Figure 13 An exemplary rear seat assembly 100 in a 4-2-4 layout of a vehicle is shown. The rear seat assembly 100 may include a seat 1 according to this application and a separate quarter seat 200. The seat 1 according to this application may form a quarter seat behind the front passenger seat and a central half seat. The separate quarter seat 200 may, for example, form a quarter seat behind the driver's seat. For example, in a vehicle where the driver's seat is on the left, the seat 1 according to this application may form a right quarter seat and a central half seat, while the separate quarter seat 200 may form a left quarter seat.

[0065] Exemplary embodiments according to this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of this application without departing from the spirit and scope of this disclosure. All changes and modifications are included within the scope of protection of this application as defined by the claims. This application is defined by the appended claims, and equivalents of those claims are also included.

Claims

1. A seat for a vehicle, characterized in that, The seat includes a seat frame assembly, a first backrest and a second backrest pivotally connected to the seat frame assembly, wherein: The first backrest and the second backrest can rotate independently or jointly relative to the seat frame assembly about a first pivot axis, and At least a portion of the seat frame assembly, the first backrest, and the second backrest can rotate together about a second pivot axis to enable the zero-pressure adjustment function of the seat.

2. The vehicle seat according to claim 1, characterized in that, The seat includes a first backrest drive mechanism configured to drive the first backrest to rotate about a first pivot axis.

3. The vehicle seat according to claim 2, characterized in that, The seat includes a backrest lock configured to lock a first backrest and a second backrest together, such that the second backrest can be moved by the first backrest.

4. The vehicle seat according to claim 3, characterized in that, In the unlocked state of the backrest lock, the first backrest and the second backrest can rotate independently about the first pivot axis.

5. The vehicle seat according to claim 2, characterized in that, The seat includes a second backrest drive mechanism configured to drive the second backrest to rotate about a first pivot axis.

6. The vehicle seat according to any one of claims 1 to 5, characterized in that, The seat frame assembly includes a first seat frame configured to cooperate with the first backrest and a second seat frame configured to cooperate with the second backrest, wherein: The seat also includes a seat frame drive mechanism configured to drive the first seat frame to rotate about a second pivot axis; and The second seat frame is configured to not rotate about the second pivot axis.

7. The vehicle seat according to claim 6, characterized in that, The first backrest is pivotally connected to the first seat frame, and the side of the second backrest closest to the first backrest is pivotally connected to the first seat frame, such that the pivot axis of the first backrest relative to the first seat frame and the pivot axis of the second backrest relative to the first seat frame are collinear with each other and form the first pivot axis.

8. The vehicle seat according to claim 7, characterized in that, The side of the second backrest closest to the first backrest is pivotally connected to the first seat frame via a first hinge bracket, wherein the first hinge bracket is fixedly connected to the first seat frame, and the second backrest is pivotally connected to the first hinge bracket.

9. The vehicle seat according to claim 8, characterized in that, The first backrest is connected to the side panel of the first seat frame via an adjuster connecting plate, wherein the adjuster connecting plate is fixedly connected to the side panel, and the first backrest is pivotally connected to the adjuster connecting plate via an adjuster. The first hinge bracket is fixed to the side plate of the first seat frame and / or the angle adjuster connecting plate.

10. The vehicle seat according to claim 8 or 9, characterized in that, The side of the second backrest away from the first backrest is pivotally connected to the second seat frame via a second hinge bracket, wherein the pivot axis between the second backrest and the second hinge bracket is collinear with the first pivot axis, and the pivot axis between the second hinge bracket and the second seat frame is collinear with the second pivot axis.

11. The vehicle seat according to claim 10, characterized in that, The second pivot axis is defined by the rear tube of the first seat frame.

12. The vehicle seat according to claim 11, characterized in that, The rear tube of the second seat frame is coaxially arranged with the rear tube of the first seat frame, wherein: The first hinge bracket is pivotally connected to the rear tube of the second seat frame, and / or The second hinge bracket is pivotally connected to the rear tube of the second seat frame.

13. The vehicle seat according to any one of claims 1 to 5, characterized in that, The seat frame assembly is configured as an integral seat frame adapted to the first backrest and the second backrest, and the seat also includes a seat frame drive device configured to drive the seat frame to rotate about a second pivot axis.

14. The vehicle seat according to claim 13, characterized in that, The first backrest and the second backrest are pivotally connected to the seat frame, such that the pivot axis of the first backrest relative to the seat frame and the pivot axis of the second backrest relative to the seat frame are collinear with each other and form the first pivot axis.

15. The vehicle seat according to claim 13, characterized in that, The second pivot axis is defined by the rear tube of the seat frame.

16. A seat for a vehicle according to any one of claims 1 to 5, characterized in that, The first backrest is the quarter-backrest of the rear seat of the vehicle, and the second backrest is the half-backrest of the rear seat of the vehicle.

17. The vehicle seat according to claim 16, characterized in that, The second backrest can rotate independently of the first backrest around the first pivot axis to a flat position to serve as the center armrest of the rear seat.

18. A vehicle, characterized in that, The vehicle includes at least one seat for the vehicle according to any one of claims 1 to 17.

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