Seat and vehicle

Abstract

The invention discloses a seat and a carrier, the seat comprises a first backrest assembly, a first base assembly and a first adjusting assembly, the first backrest assembly is rotatably connected with the first base assembly, the first adjusting assembly comprises a seat connecting shaft, and the first adjusting assembly can rotate around the seat connecting shaft relative to the first base assembly; the first adjusting assembly comprises a connecting plate, the connecting plate can rotate relative to the floor, a first pivoting part and a second pivoting part are formed on the connecting plate, the sitting part connecting shaft is connected with the second pivoting part, and the movement track of the central axis of the first pivoting part is located on the side, close to the front portion of the seat, of the central axis of the second pivoting part. According to the seat, linkage adjustment between the first backrest assembly and the first base assembly is achieved, the problem that a lying surface is uneven after a traditional seat backrest is put down is solved, and the first backrest assembly and the first base assembly form a continuous and flat lying surface after the first backrest assembly is put down.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and in particular to a seat and a vehicle. Background Technology

[0002] In everyday passenger scenarios, traditional rear seats often use a single adjustment mechanism with limited backrest angle adjustment or cumbersome operation, making it difficult to meet the personalized comfort needs of different passengers. Some models even only support a fixed angle, unable to adjust according to passenger body shape and sitting habits, which can easily cause back discomfort during long journeys. When passengers need to lie down to rest, the shortcomings of traditional seats become even more apparent: even if some models support backrest folding down, there is often a significant height difference or gap between the backrest and the seat cushion, resulting in an uneven lying surface and a feeling of pressure where the body contacts the seat, especially during long journeys, making it difficult to provide a comfortable resting experience. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a seat that solves the problem of uneven reclining surface when the backrest of a traditional seat is folded down, so that when the first backrest assembly is folded down, it forms a continuous and flat reclining surface with the first base assembly.

[0004] The present invention also proposes a vehicle having the aforementioned seat.

[0005] According to a first aspect of the present invention, the seat includes: a first backrest assembly; a first base assembly, the first backrest assembly and the first base assembly being rotatably connected; and a first adjustment assembly connected between the first backrest assembly and the first base assembly, the first adjustment assembly including a seat connecting shaft, the first adjustment assembly being rotatable about the seat connecting shaft relative to the first base assembly, the first adjustment assembly including a connecting plate, the connecting plate being rotatable relative to the seat connecting shaft, the connecting plate having a first pivot portion and a second pivot portion, the seat connecting shaft being connected to the second pivot portion, wherein the first base assembly includes: a first seat basin unit and a first linkage unit, the first seat basin unit being connected to the first linkage unit, a first end of the first linkage unit being connected to the first pivot portion, and the movement trajectory of the central axis of the first pivot portion being located on the side of the central axis of the second pivot portion near the front of the seat.

[0006] According to the present invention, the seat is provided with a connecting plate, and the movement trajectory of the central axis of the first pivot part on the connecting plate is located on the side of the central axis of the second pivot part near the front of the seat. This realizes the linkage adjustment between the first backrest assembly and the first base assembly, solves the problem of uneven lying surface after the backrest of a traditional seat is folded down, and makes the first backrest assembly and the first base assembly form a continuous and flat lying surface after the first backrest assembly is folded down, thus improving the lying comfort of the seat.

[0007] In some feasible embodiments, the first adjustment assembly further includes a backrest connecting shaft, which is spaced apart from the seat connecting shaft, and the first backrest assembly is rotatable about the backrest connecting shaft relative to the first base assembly.

[0008] In some feasible embodiments, a third pivot portion is formed on the connecting plate, the third pivot portion is arranged at a distance from the second pivot portion, and the abutment connecting shaft is connected to the third pivot portion; the first adjustment assembly further includes a first angle adjuster and a first drive motor, the first angle adjuster is sleeved on the abutment connecting shaft, and the first drive motor is drivenly connected to the first angle adjuster.

[0009] In some feasible embodiments, the first linkage unit includes: a first connecting rod and a second connecting rod, the first connecting rod being rotatable relative to the mounting portion of the seat, the second connecting rod extending along a first direction, one end of the first connecting rod being rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod being connected to the first pivot portion.

[0010] In some feasible embodiments, the connecting plate includes a first plate and a second plate, the first plate being connected to the second plate, a first pivot portion being formed on the first plate, a second pivot portion being formed on the second plate, and the first pivot portion and the second pivot portion being arranged at a distance in a second direction.

[0011] In some feasible embodiments, the first plate has a first sub-plate and a second sub-plate, the first sub-plate extending along the axial direction of the seat connection shaft, the second sub-plate extending along a radial direction perpendicular to the seat connection shaft, and the first pivot portion formed on the second sub-plate.

[0012] In some feasible embodiments, the first adjustment component further includes a second angle adjuster and a second drive motor, the second angle adjuster being sleeved on the seat connecting shaft, and the second drive motor being drively connected to the second angle adjuster.

[0013] In some feasible embodiments, the first base assembly further includes: a first sliding unit, the seat being connected to the first sliding unit, the other end of the first connecting rod being rotatably connected to the first sliding unit, the connecting plate being rotatably connected to the first sliding unit, and the first connecting rod and the connecting plate being spaced apart in a first direction.

[0014] According to a second aspect of the invention, a vehicle includes: a front seat and a rear seat, the front seat being movably disposed, the rear seat being arranged in a first direction with the front seat, the rear seat being a seat according to the first aspect of the invention, and the first base assembly including a first cushion.

[0015] According to the present invention, the vehicle achieves a continuous reclining space by setting up front and rear seats that cooperate with each other. The rear seats have a flat reclining surface after the backrests are folded down, which avoids the passengers' waist and hips from being suspended or compressed due to the difference in height when lying down. This provides continuous support for the passengers' spine and waist and hips, effectively relieving lumbar pressure and improving the comfort of lying down.

[0016] In some feasible embodiments, the front seats are the same as the rear seats.

[0017] In some feasible embodiments, the front seat further includes a rotating mechanism, to which the front seat is connected.

[0018] In some feasible embodiments, the front seat includes: a rotating mechanism, a second backrest assembly, and a second base assembly, wherein the second backrest assembly and the second base assembly are rotatably connected; the second base assembly includes: a second seat cushion, a second seat basin unit, a second linkage unit, and a second sliding unit, wherein the rotating mechanism is connected to the second sliding unit, and the second seat basin unit is connected to the rotating mechanism via the second linkage unit, wherein the second linkage unit can drive the second seat basin unit to move so that the upper surface of the second seat cushion is flush with the upper surface of the first seat cushion.

[0019] In some feasible embodiments, the front seat further includes a first leg support assembly, which is rotatably connected to the second base assembly so that the upper surface of the first leg support assembly, the upper surface of the second seat cushion, and the upper surface of the first seat cushion are flush.

[0020] In some feasible embodiments, the second sitz bath unit includes a seat frame and a sitz bath body, the seat frame extending along a first direction, and the second linkage unit includes a first rod, a second rod, and a third rod, the first rod extending along the first direction and connected to the seat frame, the first end of the second rod being rotatably connected to the first end of the first rod, the first end of the third rod being rotatably connected to the second end of the first rod, the second end of the second rod being rotatably connected to the sitz bath body, and the second end of the third rod being rotatably connected to the sitz bath body.

[0021] In some feasible embodiments, the vehicle includes a first state and a second state. In the first state, the first backrest assembly rotates to move the end of the first base assembly near the first backrest assembly upward, so that the upper surface of the first seat cushion is flush with the upper surface of the rear seat backrest; the front seat rotates to face the rear seat, and the second linkage unit moves the end of the second base assembly near the second backrest assembly upward, so that the upper surface of the second seat cushion is flush with the upper surface of the first seat cushion.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a seat according to an embodiment of the first aspect of the present invention; Figure 2 yes Figure 1 The diagram shows the seat in its second state; Figure 3 yes Figure 1 An exploded diagram of the seat shown; Figure 4 This is a schematic diagram of one embodiment of the front seat according to a second aspect of the present invention; Figure 5 yes Figure 4 A connection diagram of the second base assembly shown; Figure 6 yes Figure 5 An exploded view of the second base assembly shown in the diagram; Figure 7 This is a schematic diagram of a vehicle in a first state according to a second aspect embodiment of the present invention; Figure 8 This is a schematic diagram of a vehicle switching to a second state according to a second aspect embodiment of the present invention; Figure 9 This is a schematic diagram of a vehicle in a second state according to an embodiment of the second aspect of the present invention.

[0024] Figure label: 100. Seats; 1. First backrest assembly; 2. First base assembly; 21. First connecting rod unit; 211. First connecting rod; 212. Second connecting rod; 22. First crossbar; 23. Second crossbar; 3. First adjustment component; 31. Backrest connecting shaft; 32. Seat connecting shaft; 33. Connecting plate; 331. First plate; 3311. First pivot part; 3312. First sub-plate; 3313. Second sub-plate; 332. Second plate; 3321. Third pivot part; 3322. Second pivot part; 34. First angle adjuster; 35. Second angle adjuster; 36. First drive motor; 37. Second drive motor; 38. First sliding unit; a. Front seats; b. Rear seats; a1, Rotating mechanism; a11, Front-row rotating motor; a2, Second backrest assembly; a21, Third drive motor; a3, Second base assembly; a31, Second seat unit; a311, Seat frame; a312, Seat body; a32, second link unit; a321, first link; a322, second link; a323, third link; a33, Second sliding unit; a331, Front row sliding motor; a34, Fourth drive motor; a35, First fixed link; a36, Second fixed link; a37, Third fixed link; a4, First leg support assembly; a41, Leg support body; a42, Leg support motor; 1000, Vehicles. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] The following is for reference. Figures 1-3 A seat 100 according to an embodiment of the first aspect of the present invention is described.

[0027] For example Figures 1-3 As shown, the seat 100 according to a first aspect embodiment of the present invention includes: a first backrest assembly 1, a first base assembly 2, and a first adjustment assembly 3.

[0028] Specifically, the seat 100 is disposed on the floor of the vehicle 1000. The first backrest assembly 1 and the first base assembly 2 are rotatably connected. The first adjustment assembly 3 is connected between the first backrest assembly 1 and the first base assembly 2. The first adjustment assembly 3 includes a seat connecting shaft 32. The first adjustment assembly 3 is rotatable relative to the first base assembly 2 around the seat connecting shaft 32. The first adjustment assembly 3 includes a connecting plate 33. The connecting plate 33 is rotatable relative to the floor. A first pivot portion 3311 and a second pivot portion 3322 are formed on the connecting plate 33. The seat connecting shaft 32 is connected to the second pivot portion 3322. The first base assembly 2 includes a first seat unit and a first linkage unit 21. The first seat unit is connected to the first linkage unit 21. The first end of the first linkage unit 21 is connected to the first pivot portion 3311. The movement trajectory of the central axis of the first pivot portion 3311 is located on the side of the central axis of the second pivot portion 3322 near the front of the seat.

[0029] It is understandable that the rotatable connection between the first backrest assembly 1 and the first base assembly 2 enables seat angle adjustment, allowing drivers and passengers to adjust the backrest angle according to their own needs and alleviate fatigue caused by prolonged sitting in the same posture. By setting the first adjustment assembly 3 between the first backrest assembly 1 and the first base assembly 2, more complex relative rotational movements can be achieved, increasing the relative adjustment options between the first backrest assembly 1 and the first base assembly 2. By setting the first adjustment assembly 3 to be rotatable relative to the first base assembly 2 around the seat connection shaft 32, the rotation of the first adjustment assembly 3 around the seat connection shaft 32 causes the first base assembly 2 to change angle, thus achieving coordinated movement between the first base assembly 2 and the first backrest assembly 1.

[0030] Furthermore, the first adjustment component 3 includes a connecting plate 33 that is rotatable relative to the floor. By forming a first pivot portion 3311 and a second pivot portion 3322 on the connecting plate 33, and connecting the seat shaft 32 to the second pivot portion 3322, coordinated movement between the first adjustment component 3 and the first base component 2 is realized, ensuring stable rotation and adjustment accuracy of the seat shaft 32.

[0031] Furthermore, the first base assembly 2 includes a first seat unit and a first linkage unit 21. The first seat unit is connected to the first linkage unit 21. The first seat unit is used to support the buttocks of the driver and passenger, and the first linkage unit 21 is used to transmit motion. The first end of the first linkage unit 21 is connected to the first pivot part 3311. When the connecting plate 33 rotates around the seat connecting shaft 32, the first pivot part 3311 drives the first linkage unit 21, thereby driving the first seat unit, realizing the linkage between the first backrest assembly 1 and the first base assembly 2. Moreover, the central axis of the first pivot part 3311 is always located in front of the central axis of the second pivot part 3322, so that when the first backrest assembly 1 rotates, the first seat unit and the first backrest assembly 1 are linked to form a smooth reclining surface, effectively eliminating the height difference between the first backrest assembly 1 and the first seat unit.

[0032] The central axis of the first pivot 3311 is always located in front of the central axis of the second pivot 3322, ensuring that the connecting plate achieves a lifting motion rather than a lowering motion during the rotation of the first backrest assembly 1 when the carrier 1000 switches from the first state to the second state.

[0033] In some embodiments, the position of the central axis of the first pivot 3311 in the first state of the vehicle 1000 can be set below the front part of the second pivot 3322. That is, the angle between the line connecting the first pivot 3311 and the second pivot 3322 and the vertical line extending from the central axis of the second pivot 3322 downwards from the vehicle can be set in the range of 0° to 90°.

[0034] The position of the central axis of the first pivot 3311 in the first state of the vehicle 1000 can also be set within a preset angle range above the front part of the second pivot 3322. The maximum value of the preset angle is the difference between 90° and the maximum rearward rotation angle of the first backrest assembly 1. For example, the maximum rearward rotation angle of the first backrest assembly 1 is 69°, and the preset angle ranges from 0° to 21°. That is, the angle between the line connecting the first pivot 3311 and the second pivot 3322 and the horizontal line extending from the central axis of the second pivot 3322 towards the front of the vehicle can be set within the range of 0° to 21°.

[0035] When the vehicle 1000 switches from the first state to the second state, the central axis of the first pivot 3311 rotates by a corresponding angle as the first backrest assembly 1 moves, while still ensuring that the central axis of the first pivot 3311 is located in front of the central axis of the second pivot 3322.

[0036] For example, such as Figure 1As shown, the first pivot 3311 is in the first position, at which time the angle between the line connecting the first pivot 3311 and the second pivot 3322 and the vertical direction is 110°, as shown. Figure 2 As shown, the first pivot 3311 is in the second position, at which time the first pivot 3311 rotates 69° around the second pivot 3322, and the first base assembly 2 is raised to form a smooth lying surface with the flattened first backrest assembly 1.

[0037] It should be noted that the first pivot part 3311 can rotate between the first position and the second position and can stay at any position between the first position and the second position to meet the different sitting posture requirements of passengers.

[0038] According to the embodiment of the present invention, the seat 100, by setting a connecting plate 33, and the central axis of the first pivot part 3311 on the connecting plate 33 is always located in front of the central axis of the second pivot part 3322, realizes the linkage adjustment between the first backrest assembly 1 and the first base assembly 2, solves the problem of uneven lying surface after the traditional seat backrest is folded down, and makes the first backrest assembly 1 and the first base assembly 2 form a continuous and flat lying surface after being folded down, thereby improving the lying comfort of the seat 100.

[0039] In some embodiments of the present invention, such as Figures 1-3 As shown, the first adjustment component 3 also includes a backrest connecting shaft 31, which is spaced apart from the seat connecting shaft 32. The first backrest component 1 is rotatable relative to the first base component 2 around the backrest connecting shaft 31. By providing the backrest connecting shaft 31 spaced apart from the seat connecting shaft 32, the first backrest component 1 can be easily rotated towards the first base component 2 to fold onto the first base component 2, thus facilitating storage.

[0040] In other embodiments, the first backrest assembly 1 may also be directly fixedly connected to the first adjustment assembly 3. By rotating the first adjustment assembly 3 around the seat connecting shaft 32, the first adjustment assembly 3 drives the first backrest assembly 1 to rotate, thereby adjusting the angle of the first backrest assembly 1.

[0041] In some embodiments of the present invention, the first linkage unit 21 includes: a first connecting rod 211 and a second connecting rod 212. The first connecting rod 211 is rotatable relative to the mounting portion of the seat 100, and the second connecting rod 212 extends along a first direction. One end of the first connecting rod 211 is rotatably connected to one end of the second connecting rod 212, and the other end of the second connecting rod 212 is connected to a first pivot portion 3311. Figures 1-3As shown, the lower end of the first connecting rod 211 is rotatably connected to the floor or the first sliding unit 38. The second connecting rod 212 extends in the front-rear direction, with the upper end of the first connecting rod 211 rotatably connected to the front end of the second connecting rod 212, and the rear end of the second connecting rod 212 rotatably connected to the first pivot portion 3311 of the connecting plate 33. Thus, the first connecting rod unit 21 makes the motion transmission path of the seat 100 more stable, ensuring precise linkage between the first backrest assembly 1 and the first base assembly 2.

[0042] In some embodiments of the present invention, the connecting plate 33 includes a first plate 331 and a second plate 332, the first plate 331 being connected to the second plate 332, a first pivot portion 3311 being formed on the first plate 331, and a second pivot portion 3322 being formed on the second plate 332, the first pivot portion 3311 and the second pivot portion 3322 being arranged at a distance in a second direction. Figure 3 As shown, it can be understood that the first pivot 3311 is located on the first plate 331, and the first plate 331 is rotatably connected to the second connecting rod 212. The second pivot 3322 is located on the second plate 332, and the second plate 332 is rotatably connected to the seat connecting shaft 32. As shown in the figure, the first pivot 3311 and the second pivot 3322 are arranged at intervals in the left and right directions. In this way, when the connecting plate 33 rotates around the axis of the seat connecting shaft 32 as the first backrest assembly 1 is folded down, the connecting plate 33 drives the rear end of the second rod a322 to rise, thereby making the first backrest assembly 1 and the first base assembly 2 form a continuous and flat reclining surface after being folded down.

[0043] In some embodiments of the present invention, such as Figure 3 As shown, a third pivot portion 3321 is formed on the second plate 332. The third pivot portion 3321 and the second pivot portion 3322 are arranged at intervals. The abutment connecting shaft 31 is connected to the third pivot portion 3321. The first adjustment assembly 3 also includes: a first angle adjuster 34 and a second angle adjuster 35. The first angle adjuster 34 is sleeved on the abutment connecting shaft 31, and the second angle adjuster 35 is sleeved on the seat connecting shaft 32. Understandably, the first angle adjuster 34 is used to control the rotation angle of the first backrest assembly 1 relative to the connecting plate 33, and the second angle adjuster 35 is used to control the swing angle of the first backrest assembly 1 relative to the first base assembly 2, thereby realizing the posture adjustment of the first backrest assembly 1. That is, when the first backrest assembly 1 rotates relative to the connecting plate 33 around the backrest connecting shaft 31, only the tilt angle of the first backrest assembly 1 is adjusted to improve the comfort of the driver and passengers. When the first backrest assembly 1 rotates relative to the first base assembly 2 around the seat connecting shaft 32, the first backrest assembly 1 is laid down, and at the same time the rear end of the first base assembly 2 is raised. The first backrest assembly 1 and the first base assembly 2 cooperate to form a continuous and flat lying plane, avoiding the feeling of suspension or pressure on the waist and buttocks of passengers when lying down due to the difference in height, thus improving the comfort of the seat 100.

[0044] In some embodiments of the present invention, the first plate 331 has a first sub-plate 3312 and a second sub-plate 3313, the first sub-plate 3312 extending along the axial direction of the seat connection shaft 32, the second sub-plate 3313 extending along a radial direction perpendicular to the seat connection shaft 32, and a first pivot portion 3311 formed on the second sub-plate 3313. (Refer to...) Figure 3 As shown, the second plate 332 extends in a radial direction perpendicular to the seat connection shaft 32. The first plate 331 has a first sub-plate 3312 and a second sub-plate 3313 connected together. The first sub-plate 3312 extends in the axial direction of the seat connection shaft 32 (i.e., the first sub-plate 3312 extends in a direction parallel to the seat connection shaft 32), and the second sub-plate 3313 extends in a radial direction perpendicular to the seat connection shaft 32 (i.e., the second sub-plate 3313 extends in a direction perpendicular to the first sub-plate 3312). The first plate 331 is formed into an L-shaped structure. In this way, the axial load is borne by the first sub-plate 3312 and the radial load is borne by the second sub-plate 3313, avoiding stress concentration and thus ensuring the structural stability of the first adjustment component 3.

[0045] In some embodiments of the present invention, the first adjustment component 3 further includes: a first drive motor 36 and a second drive motor 37, wherein the first drive motor 36 is driveably connected to the first angle adjuster 34, and the second drive motor 37 is driveably connected to the second angle adjuster 35. (Refer to...) Figure 3 As shown, the first drive motor 36 is used to drive the rotation of the first backrest assembly 1 relative to the connecting plate 33, i.e., the tilt angle adjustment of the first backrest assembly 1; the second drive motor 37 is used to drive the rotation of the connecting plate 33 relative to the first base assembly 2, i.e., the state switching of the first backrest assembly 1 (sitting and reclining positions). Thus, by setting the first drive motor 36 and the second drive motor 37, the fully electric adjustment of the seat 100 is achieved, which facilitates operation and improves the adjustment accuracy and movement stability of the seat 100.

[0046] In some embodiments of the present invention, the first base assembly 2 further includes: a first sliding unit 38, the first sliding unit 38 being disposed on the floor, the seat 100 being movably connected to the floor relative to the first sliding unit 38, the other end of the first connecting rod 211 being rotatably connected to the first sliding unit 38, and a connecting plate 33 being rotatably connected to the first sliding unit 38, with the first connecting rod 211 and the connecting plate 33 spaced apart in a first direction. It can be understood that by setting the first sliding unit 38, the seat 100 has the ability to adjust its position forward and backward to accommodate the legroom of passengers of different heights. The first sliding unit 38 is disposed on the floor to achieve relative sliding between the seat 100 and the floor, such as... Figure 1 and Figure 2As shown, the lower end of the first connecting rod 211 is rotatably connected to the first sliding unit 38, and the connecting plate 33 is rotatably connected to the first sliding unit 38. The first connecting rod 211 and the connecting plate 33 are arranged at intervals in the front-back direction. This ensures reliable relative movement between the first adjusting component 3 and the first base component 2, avoids all hinge points from concentrating at one point, avoids stress concentration, disperses the load, and reduces local stress.

[0047] In some embodiments, to ensure the stability and reliability of the seat 100 during the switching state, the connecting plate 33 is symmetrically arranged along the axial direction of the backrest connecting shaft 31, and the first linkage unit 21 is symmetrically arranged along the axial direction of the backrest connecting shaft 31, such as... Figures 1-3 As shown, a first angle adjuster 34 is arranged at each end of the backrest connecting shaft 31, and a second angle adjuster 35 is arranged at each end of the seat connecting shaft 32. The backrest connecting shaft 31 and the seat connecting shaft 32 are arranged parallel to each other. A first crossbar 22 and a second crossbar 23 are connected between the two second connecting rods 212. The upper ends of the two first connecting rods 211 are rotatably connected to the first crossbar 22, and the rear ends of the two second connecting rods 212 are rotatably connected to the second crossbar 23. A first pivot part 3311 is connected to each end of the second crossbar 23, so that the load is evenly distributed in the width direction of the seat 100, avoiding excessive force on one side leading to deformation or fatigue damage, enhancing the torsional rigidity of the overall structure of the seat 100, preventing the first base assembly 2 from tilting, shaking or twisting during the activity, and improving the riding comfort and the balance of human body support.

[0048] According to a second aspect of the present invention, a vehicle 1000 includes a front seat a and a rear seat b, the front seat a being movably disposed, the rear seat b being arranged in a first direction with the front seat a, the rear seat b being a seat 100 according to a first aspect of the present invention, and the first base assembly 2 including a first cushion.

[0049] According to the embodiment of the present invention, the vehicle 1000 achieves a continuous reclining space by setting up a front seat a and a rear seat b that cooperate with each other. The rear seat b has a flat reclining surface after the backrest is folded down, which avoids the passenger's waist and hips from being suspended or compressed due to the difference in height when lying down. This provides continuous support for the passenger's spine and waist and hips, effectively relieving lumbar pressure and improving the comfort of lying down.

[0050] In some embodiments of the present invention, the front seat a and the rear seat b are identical. That is, both the front seat a and the rear seat b are seats 100 according to the first aspect embodiment of the present invention. Both the front seat a and the rear seat b include a first backrest assembly 1, a first base assembly 2, and a first adjustment assembly 3. The first backrest assembly 1 and the first base assembly 2 are rotatably connected. The first adjustment assembly 3 is connected between the first backrest assembly 1 and the first base assembly 2. The first adjustment assembly 3 includes a backrest connecting shaft 31 and a seat connecting shaft 32 arranged along the length direction of the first backrest assembly 1. The first backrest assembly 1 is rotatable relative to the first base assembly 2 about the backrest connecting shaft 31. The first adjustment assembly 3 is rotatable relative to the first base assembly 2 about the backrest connecting shaft 31. The first base assembly 2 is rotatable about the seat connecting shaft 32. The first adjustment assembly 3 includes a connecting plate 33, which is rotatable relative to the floor. A first pivot part 3311 and a second pivot part 3322 are formed on the connecting plate 33. The seat connecting shaft 32 is connected to the second pivot part 3322. The first base assembly 2 includes a first seat unit and a first connecting rod unit 21. The first seat unit is connected to the first connecting rod unit 21. The first end of the first connecting rod unit 21 is connected to the first pivot part 3311. The central axis of the first pivot part 3311 is not collinear with the central axis of the second pivot part 3322. The lower end of the first connecting rod 211 is rotatably connected to the first sliding unit 38, and the second connecting rod 212 extends in the front-back direction. The upper end of the first connecting rod 211 is rotatably connected to the front end of the second connecting rod 212, and the rear end of the second connecting rod 212 is rotatably connected to the first pivot part 3311 of the connecting plate 33. This eliminates the depression or height difference between the base and backrest of the traditional seat after it is laid flat, forming a continuous and flat lying plane, which provides continuous support for the passenger's spine and waist and hips.

[0051] Furthermore, the rear seat b is a seat 100 according to the first aspect of the present invention, and the front seat a includes a rotation mechanism a1, through which the front seat a rotates relative to the floor. Thus, the rotation mechanism a1 on the front seat a allows the front seat a to rotate as a whole relative to the floor about a vertical axis, thereby achieving rear-facing, side-facing communication, or face-to-face seating modes. Moreover, when reclining is required, the backrests of both the front seat a and the rear seat b can be folded down simultaneously. The front seat a and the rear seat b work together to form a long, continuous, flat reclining surface with the backrests and base, accommodating passengers of various heights and improving reclining comfort.

[0052] For example, the rear seat b is a seat 100 according to the first aspect embodiment of the present invention, and the front seat a is also a seat 100 according to the first aspect embodiment of the present invention. When the seat 100 of the first aspect embodiment of the present invention is applied to the front seat a, a rotating mechanism a1 can be provided between the first sliding unit 38 and the seat frame a311.

[0053] For example, the rear seat b is a seat 100 according to the first aspect of the present invention, and the structure of the front seat a is different from that of the rear seat b. The structure of the front seat a will be described in detail below.

[0054] Reference Figure 4 As shown, the front seat a includes: a rotating mechanism a1, a second backrest assembly a2, and a second base assembly a3. The second backrest assembly a2 and the second base assembly a3 are rotatably connected. It can be understood that the second base assembly a3 is used to support the front seat a. The second base assembly a3 is movably connected to the floor so that the front seat a can rotate or move relative to the floor. The second backrest assembly a2 and the second base assembly a3 are rotatably connected. The second backrest assembly a2 and the second base assembly a3 rotate relative to each other about a horizontal axis. The second backrest assembly a2 can be adjusted at multiple angles.

[0055] In some embodiments, such as Figure 4 As shown, the rotating mechanism a1 includes a front-row rotating motor a11, which is connected to the second base assembly a3 to drive the front seat a to rotate relative to the floor. The second backrest assembly a2 includes a third drive motor a21, which is connected to the second backrest assembly a2 to drive the second backrest assembly a2 to rotate relative to the second base assembly a3. Thus, the third drive motor a21 can drive the second backrest assembly a2 to rotate to a position flush with the second base assembly a3, or it can drive the second backrest assembly a2 to rotate to a comfortable angle for the passenger, thereby improving passenger comfort. It should be noted that "flush" in this text refers to the two surfaces being essentially on the same plane, although an acceptable height difference for the occupants is permissible.

[0056] For example, the height difference to achieve "flush" can be ±5mm to ±10mm.

[0057] In some embodiments of the present invention, such as Figures 4-6 As shown, the second base assembly a3 includes: a second seat unit a31, a second linkage unit a32, and a second sliding unit a33. The second seat unit a31 is connected to the second linkage unit a32, the second sliding unit a33 is disposed on the floor, the rotating mechanism a1 is connected to the second sliding unit a33, the second seat unit a31 is connected to the rotating mechanism a1, the front seat a rotates relative to the floor through the rotating mechanism a1, and the second linkage unit a32 can drive the second seat unit a31 to move so that the second seat unit a31 and the first base assembly 2 are spliced ​​together to form a reclining surface.

[0058] Understandably, the front seat a is driven by the front sliding motor a331 to move a certain distance along the second sliding unit a33 to make room for the second backrest assembly a2 to lie flat. After moving into place, the front rotating motor a11 starts and drives the front seat a to rotate backward. The second linkage unit a32 can drive the end of the second seat unit a31 near the second backrest assembly a2 to rise, making it flush with the first base assembly 2 which has been adjusted to lie flat, thus forming a complete and ergonomic reclining surface.

[0059] In some embodiments of the present invention, such as Figure 4 As shown, the front seat a also includes a first leg support assembly a4, which is rotatably connected to the second base assembly a3 so that the first leg support assembly a4, the second seat unit a31, and the first base assembly 2 are joined to form a reclining surface. The first leg support assembly a4 can be unfolded and extended upward to support the passenger's legs and reduce fatigue caused by the legs being dangling in the air.

[0060] Furthermore, such as Figure 4 As shown, the first leg support assembly a4 includes a leg support body a41 and a leg support motor a42. The leg support body a41 is rotatably connected to the second base assembly a3. The output end of the leg support motor a42 is connected to the leg support body a41 and / or the front seat frame a311 to drive the leg support body a41 to rotate relative to the first base assembly 2. In this way, during normal sitting, the first leg support assembly a4 provides continuous support for the lower legs, reducing blood circulation obstruction and muscle fatigue caused by the legs being suspended. Furthermore, the first leg support assembly a4 overlaps with the rear seat b to form a continuous reclining surface, improving the passenger's reclining comfort.

[0061] In some embodiments of the present invention, such as Figures 4-6As shown, the second seat unit a31 includes a seat frame a311 and a seat body a312. The seat frame a311 extends along a first direction. The second linkage unit a32 includes a first rod a321, a second rod a322, and a third rod a323. The first rod a321 extends along the first direction and is connected to the seat frame a311. The first end of the second rod a322 is rotatably connected to the first end of the first rod a321. The first end of the third rod a323 is rotatably connected to the second end of the first rod a321 and rotatably connected to the seat body a312. The second end of the first rod a321 is connected to the free end of the fourth drive motor a34 to rotate around the first end of the first rod a321. Understandably, when the second backrest assembly a2 of the front row seat a is flat, the fourth drive motor a34 starts and drives its drive end to push or pull the first rod a321 to rotate around the fulcrum. As the first rod a321 rotates, the second rod a322 and the third rod a323 change angle accordingly. At the same time, the seat frame a311 drives the seat body a312 to move, so that the end of the second base assembly a3 near the second backrest assembly a2 is raised upward, thereby raising the rear end of the seat body a312 to a position flush with the flat second backrest assembly a2, forming a continuous and flat reclining support surface, improving reclining comfort. Moreover, the structure of the second base assembly a3 is simple, reliable, and has a low failure rate.

[0062] At the same time, when the fourth drive motor a34 starts and drives its drive end to push or pull the first rod a321 to rotate around the first end of the first rod a321, it will cause the end of the second base assembly a3 close to the second backrest assembly a2 to rise upward, and will also cause the end of the second base assembly a3 close to the second backrest assembly a2 to move away from the second backrest assembly a2, thereby avoiding interference between the seat body a312 and the second backrest assembly a2 during the lifting process.

[0063] Furthermore, to ensure the stability and reliability of the front seat a switching between the first and second states, the second linkage unit a32 is symmetrically arranged in the width direction of the seat body a312, as follows: Figures 4-6As shown, a first fixed link a35, a second fixed link a36, and a third fixed link a37 are connected between the two second link units a32. The seat body a312 is fixedly connected to the first fixed link a35 and the second fixed link a36. The first fixed link a35 is connected between the second ends of the two third links a323, the second fixed link a36 is connected between the second ends of the two second links a322, and the third fixed link a37 is connected between the second ends of the two first links a321. This ensures that the load is evenly distributed in the width direction of the front seat a, avoiding excessive force on one side that could lead to deformation or fatigue damage. It also enhances the torsional rigidity of the overall structure of the front seat a, prevents the second base assembly a3 from tilting, swaying, or twisting during operation, and improves ride comfort and the balance of human body support.

[0064] In other embodiments, the output end of the fourth drive motor a34 is connected to the third fixed link a37, and the second link a322 is provided with a rotational connection point with the seat frame a311. The fourth drive motor a34 is a lead screw motor. The movement of the lead screw motor drives the third fixed link a37 to move relative to the rotational connection point between the second link a322 and the seat frame a311 in the front-rear direction of the vehicle, so as to realize the angle adjustment of the third link a323. This further drives the first fixed link a35, the second fixed link a36 and the seat body a312 to move upward, so that the seat body a312 is flush with the second backrest assembly a2 after being laid flat, forming a continuous and flat reclining support surface. At the same time, when the output end of the fourth drive motor a34 is connected to the third fixed link a37, it will drive the end of the second base assembly a3 close to the second backrest assembly a2 to rise upward, and will also drive the end of the second base assembly a3 close to the second backrest assembly a2 to move away from the second backrest assembly a2, thereby avoiding interference between the seat body a312 and the second backrest assembly a2 during the lifting process.

[0065] like Figures 7-9 As shown, the vehicle 1000 has a first state and a second state. When switching from the first state to the second state, the first backrest assembly 1 rotates relative to the first base assembly 2, and the end of the first base assembly 2 near the first backrest assembly 1 moves upward to correspond to the upper surface of the first backrest assembly 1. The front seat a rotates relative to the floor to face the rear seat b, and the end of the second base assembly a3 near the second backrest assembly a2 moves upward to make the second base assembly a3 and the first base assembly 2 splice together to form a reclining surface.

[0066] Specifically, refer to Figure 7 As shown, when the vehicle 1000 is in the first state, both the front seat a and the rear seat b can provide normal seating support for passengers. Reference Figure 8As shown, when vehicle 1000 switches from the first state to the second state, the front seat a first moves along the first direction (e.g., ...). Figure 8 Adjust the front seat (in the front-back direction as shown) to a position suitable for rotation, then rotate the front seat a and rotate the second backrest assembly a2 to a near or horizontal state, forming the upper part of the reclining surface, which overlaps with the rear seat b to form a continuous reclining surface. The end of the second base assembly a3 near the second backrest assembly a2 is raised to a position flush with the second backrest assembly a2.

[0067] Furthermore, the first leg rest assembly a4 flips upward and extends to overlap with the rear seat b, forming a continuous reclining surface. This extended surface of the first leg rest assembly a4 fills the gap between the reclining surfaces formed by the front seat a and the rear seat b, improving passenger reclining comfort. Alternatively, the front seat a can be adjusted by only adjusting the second base assembly a3, so that the second base assembly a3 overlaps with the rear seat b to form a continuous reclining surface, without the second backrest assembly a2 participating in forming the reclining surface.

[0068] Reference Figure 9 As shown, when the vehicle 1000 is in the second state, the front seat a and the rear seat b work together to form a continuous, flat, and stepless reclining surface, which avoids the passengers' waist and hips from feeling unsupported or compressed due to the height difference when lying down, thus improving the comfort of the vehicle 1000.

[0069] In other embodiments, when the vehicle 1000 switches from the first state to the second state, the front seat a may provide normal seating support for the passenger, and the first backrest assembly 1 of the rear seat b may rotate relative to the first base assembly 2, and the end of the first base assembly 2 near the first backrest assembly 1 may move upward to be flush with the first backrest assembly 1.

[0070] In some feasible embodiments, a memory module is set up to store the personal preference angles or seat usage patterns of different users, thereby improving the intelligence level of the vehicle 1000.

[0071] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0072] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A seat (100), characterized in that, The seat (100) includes: First backrest assembly (1); The first base assembly (2) is rotatably connected to the first backrest assembly (1); A first adjustment component (3) is connected between the first backrest component (1) and the first base component (2). The first adjustment component (3) includes a seat connecting shaft (32) and is rotatable relative to the first base component (2) about the seat connecting shaft (32). The first adjustment component (3) also includes a connecting plate (33) which is rotatable relative to the seat connecting shaft (32). A first pivot portion (3311) and a second pivot portion (3322) are formed on the connecting plate (33). The seat connecting shaft (32) is connected to the second pivot portion (3322). The first base assembly (2) includes a first seat unit and a first linkage unit (21). The first seat unit is connected to the first linkage unit (21). The first end of the first linkage unit (21) is connected to the first pivot part (3311). The movement trajectory of the central axis of the first pivot part (3311) is located on the side of the central axis of the second pivot part (3322) near the front of the seat (100).

2. The seat (100) according to claim 1, characterized in that, The first adjustment component (3) further includes a backrest connecting shaft (31), which is spaced apart from the seat connecting shaft (32), and the first backrest component (1) is rotatable about the backrest connecting shaft (31) relative to the first base component (2).

3. The seat (100) according to claim 2, characterized in that, A third pivot portion (3321) is formed on the connecting plate (33), the third pivot portion (3321) is arranged at a distance from the second pivot portion (3322), and the abutment connecting shaft (31) is connected to the third pivot portion (3321); the first adjustment assembly (3) further includes a first angle adjuster (34) and a first drive motor (36), the first angle adjuster (34) is sleeved on the abutment connecting shaft (31), and the first drive motor (36) is connected to the first angle adjuster (34) in a transmission connection.

4. The seat (100) according to claim 1, characterized in that, The first linkage unit (21) includes a first connecting rod (211) and a second connecting rod (212). The first connecting rod (211) is rotatable relative to the mounting portion of the seat (100). The second connecting rod (212) extends along a first direction. One end of the first connecting rod (211) is rotatably connected to one end of the second connecting rod (212). The other end of the second connecting rod (212) is connected to the first pivot portion (3311).

5. The seat (100) according to claim 1, characterized in that, The connecting plate (33) includes a first plate (331) and a second plate (332), the first plate (331) is connected to the second plate (332), the first pivot portion (3311) is formed on the first plate (331), the second pivot portion (3322) is formed on the second plate (332), and the first pivot portion (3311) and the second pivot portion (3322) are arranged at intervals in a second direction.

6. The seat (100) according to claim 5, characterized in that, The first plate (331) has a first sub-plate (3312) and a second sub-plate (3313), the first sub-plate (3312) extends along the axial direction of the seat connecting shaft (32), the second sub-plate (3313) extends along the radial direction perpendicular to the seat connecting shaft (32), and the first pivot portion (3311) is formed on the second sub-plate (3313).

7. The seat (100) according to claim 1, characterized in that, The first adjustment component (3) further includes a second angle adjuster (35) and a second drive motor (37). The second angle adjuster (35) is sleeved on the seat connecting shaft (32), and the second drive motor (37) is connected to the second angle adjuster (35) in a transmission connection.

8. The seat (100) according to claim 4, characterized in that, The first base assembly (2) further includes: a first sliding unit (38), the seat (100) is connected to the first sliding unit (38), the other end of the first connecting rod (211) is rotatably connected to the first sliding unit (38), the connecting plate (33) is rotatably connected to the first sliding unit (38), and the first connecting rod (211) and the connecting plate (33) are spaced apart in a first direction.

9. A vehicle (1000), characterized in that, include: A front seat (a) and a rear seat (b), wherein the front seat (a) is movably disposed, and the rear seat (b) is arranged in a first direction with respect to the front seat (a). The rear seat (b) is the seat (100) of any one of claims 1-8, and the first base assembly (2) includes a first cushion.

10. The vehicle (1000) according to claim 9, characterized in that, The front seat (a) is the same as the rear seat (b).

11. The vehicle (1000) according to claim 10, characterized in that, The front seat (a) includes a rotating mechanism (a1), and the front seat (a) is connected to the rotating mechanism (a1).

12. The vehicle (1000) according to claim 9, characterized in that, The front seat (a) includes: a rotating mechanism (a1), a second backrest assembly (a2), and a second base assembly (a3), wherein the second backrest assembly (a2) and the second base assembly (a3) ​​are rotatably connected; The second base assembly (a3) ​​includes: a second seat cushion, a second seat basin unit (a31), a second linkage unit (a32), and a second sliding unit (a33). The rotating mechanism (a1) is connected to the second sliding unit (a33). The second seat basin unit (a31) is connected to the rotating mechanism (a1) through the second linkage unit (a32). The second linkage unit (a32) can drive the second seat basin unit (a31) to move so that the upper surface of the second seat cushion is flush with the upper surface of the first seat cushion.

13. The vehicle (1000) according to claim 12, characterized in that, The front seat (a) further includes a first leg support assembly (a4), which is rotatably connected to the second base assembly (a3) ​​so that the upper surface of the first leg support assembly (a4), the upper surface of the second seat cushion, and the upper surface of the first seat cushion are flush.

14. The vehicle (1000) according to claim 12, characterized in that, The second seat unit (a31) includes a seat frame (a311) and a seat body (a312). The seat frame (a311) extends along a first direction. The second linkage unit (a32) includes a first rod (a321), a second rod (a322), and a third rod (a323). The first rod (a321) extends along the first direction and is connected to the seat frame (a311). The first end of the second rod (a322) is rotatably connected to the first end of the first rod (a321). The first end of the third rod (a323) is rotatably connected to the second end of the first rod (a321). The second end of the second rod (a322) is rotatably connected to the seat body (a312). The second end of the third rod (a323) is rotatably connected to the seat body (a312).

15. The vehicle (1000) according to claim 14, characterized in that, The vehicle (1000) has a first state and a second state. When switching from the first state to the second state, the first backrest assembly (1) rotates to drive the first base assembly (2) to move upward near the end of the first backrest assembly (1) so that the upper surface of the first seat cushion is flush with the upper surface of the backrest of the rear seat (b). The front seat (a) rotates to face the rear seat (b). The second linkage unit (a32) drives the second base assembly (a3) ​​to move upward near the end of the second backrest assembly (a2) so that the upper surface of the second seat cushion is flush with the upper surface of the first seat cushion.

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