Automobile seat and automobile

Abstract

The invention provides an automobile seat and an automobile, the automobile seat comprises a backrest side plate, a cushion side plate, an angle adjuster assembly and a slide rail assembly, the angle adjuster assembly is arranged at the joint of the backrest side plate and the cushion side plate, and the automobile seat further comprises a backrest limiting stop block, a movable locking block and a gear shifting unit; the backrest limiting stop block is mounted on the backrest side plate; one end of the movable locking block is connected with the gear shifting unit, and the other end of the movable locking block and the backrest limiting stop block are mutually limited; the gear shifting unit is connected with the sliding rail assembly and the movable locking block, and when the relative position between the cushion side plate and the sliding rail assembly is changed, the gear shifting unit adjusts the angle adjusting limit position where the movable locking block and the backrest limiting check block are mutually limited. The invention provides an automobile seat in order to solve the problems that the angle adjusting limit position of an existing automobile seat is fixed, and the maximum use space cannot be achieved in a limited space.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile body parts, and in particular relates to an automobile seat and an automobile. Background Art

[0002] With the rapid development of the automobile market and the improvement of people's living standards, people have higher and higher requirements for the comfort of travel tools. The comfort of travel tools is mainly reflected in the car seats. In order to meet the comfort needs, the seats integrate functions such as front and rear adjustment, lateral adjustment and backrest adjustment.

[0003] The angle adjustment limit position of the seat back of most models is usually limited by a hard stop point, which is achieved by squeezing the backrest frame structure and the seat cushion frame structure. There is only one hard stop point for the limit limit, and the angle adjustment limit position is fixed, making it impossible to achieve multiple limit limit angle adjustments.

[0004] In some MPV models, the second row of seats can be adjusted in both the left and right directions and the front and back directions. When the position of the second row of seats changes, the space between them and the third row of seats will also change. Currently, there are few models on the market that can adjust the adjustment angle limit of the second row of seats, which cannot fully utilize the rear space and cannot provide users with a better user experience. For example, in ordinary five-seat or seven-seat models, when the front row seats are adjusted in the front and back directions, the distance and space between them and the rear seats will also change. When the front row seats are moved to the front of the car, the distance between them and the rear seats increases, but the adjustment angle limit of the front row seats is fixed, which cannot fully utilize the space and cannot provide users with a better experience. Summary of the invention

[0005] The invention provides a car seat and a car, so as to solve the problem that the angle adjustment limit position of the existing car seat is fixed and the maximum use of space can not be achieved in a limited space.

[0006] A car seat, comprising a backrest side panel, a seat cushion side panel, a recliner assembly and a slide rail assembly, wherein the recliner assembly is arranged at the connection between the backrest side panel and the seat cushion side panel, and the car seat further comprises a backrest limit stopper, a movable locking block and a shift unit;

[0007] The backrest limit stopper is mounted on the backrest side plate;

[0008] One end of the movable locking block is connected to the shift unit, and the other end is mutually limited with the backrest limit stopper;

[0009] The shift unit is connected to the slide rail assembly and the movable locking block. When the relative position between the seat cushion side plate and the slide rail assembly changes, the shift unit adjusts the angular limit position of the movable locking block and the backrest limit block.

[0010] Preferably, the shift unit comprises a slide slot, a shift block and a first cable;

[0011] The slide groove is fixedly arranged on the angle adjuster assembly, and the slide groove is provided with a first slideway;

[0012] The shift block is slidably connected to the first slideway, and the movable locking block is connected to the shift block. When the shift block moves along the first slideway, the shift block adjusts the angular limit position of the movable locking block and the backrest limit block.

[0013] One end of the first cable is connected to the slide rail assembly, and the other end is connected to the shift block, and is used to drive the shift block to move along the first slide rail when the seat cushion side plate moves relative to the slide rail assembly.

[0014] Preferably, the slide groove is provided with at least two gear slots, and the at least two gear slots are distributed along the first slide direction;

[0015] The shift block is provided with a shift groove, and the shift groove is provided on a side surface of the shift block;

[0016] The movable locking block includes a locking block body and a locking pin; one end of the locking block body is mutually limited by the backrest limit block, and the other end is arranged in the shift block; the locking pin is fixedly arranged on the locking block body, and the locking pin passes through the shift groove. When the locking block body moves along the first slide, the locking pin is clamped on the shift slot.

[0017] Preferably, the chute comprises two first side plates, a first outer arc plate and a first inner arc plate, and the two first side plates, the first outer arc plate and the first inner arc plate together form an arc-shaped annular channel;

[0018] The two first slideways are respectively arranged on opposite surfaces of the first outer arc plate and the first inner arc plate, and the two first slideways are respectively arc-shaped slideways with the same curvature as the first outer arc plate and the first inner arc plate;

[0019] The first outer arc plate is provided with a first outer through groove along the radial direction, the first inner arc plate is provided with a first inner through groove along the radial direction, the first outer through groove and the first inner through groove are arranged opposite to each other, and the locking block body passes through the first outer through groove and the first inner through groove along the radial direction;

[0020] At least two of the gear slots are located on the inner side surface of the same first side plate and are distributed in an arc shape around the axis of the first slideway.

[0021] Preferably, the shift block is arranged in the slide groove, and comprises two second side plates, a second outer arc plate and a second inner arc plate, and the two second side plates, the second outer arc plate and the second inner arc plate together form an arc-shaped annular channel;

[0022] The second outer arc plate and the second inner arc plate are slidably connected to the first slideway;

[0023] The second outer arc plate is provided with a second outer through groove in the radial direction, the second inner arc plate is provided with a second inner through groove in the radial direction, the second outer through groove and the second inner through groove are arranged opposite to each other, and the locking block body passes through the second outer through groove and the second inner through groove in the radial direction;

[0024] The shift groove is arranged on the second side plate.

[0025] Preferably, the two ends of the shift groove are respectively a first limiting portion and a second limiting portion;

[0026] The first limiting portion and the second limiting portion are smoothly connected;

[0027] The radial width of the first limiting portion is greater than the radial width of the second limiting portion, and the distance between the bottom of the first limiting portion and the axis of the first slideway is less than the distance between the bottom of the second limiting portion and the axis of the first slideway.

[0028] Preferably, the vehicle seat further comprises an unlocking unit, the unlocking unit comprising a motion unlocking block, an operating assembly and a cable assembly;

[0029] The operating assembly is arranged on the seat cushion side panel;

[0030] One end of the cable assembly is connected to the operating assembly, and the other end is connected to the movable locking block through the motion unlocking block, and the cable assembly is used to unlock the movable locking block when the operating assembly is operated;

[0031] The motion unlocking block is slidably connected to the shift block, and the motion unlocking block is connected to the movable locking block for unlocking the movable locking block. An unlocking groove corresponding to the shift groove is provided on the side of the movable locking block, and the locking pin is inserted into the unlocking groove.

[0032] Preferably, the motion unlocking block comprises two third side plates, a third outer arc plate and a third inner arc plate;

[0033] The motion unlocking block is slidably connected to the shift block via the third outer arc plate and the third inner arc plate;

[0034] The third outer arc plate and the third inner arc plate are respectively provided with a third outer through groove and a third inner through groove in the radial direction, the third outer through groove and the third inner through groove are arranged opposite to each other, and the locking block body passes through the third outer through groove and the third inner through groove in the radial direction;

[0035] The unlocking slot is disposed on the third side plate.

[0036] Preferably, the two ends of the unlocking slot are respectively a third limiting portion and a fourth limiting portion;

[0037] The third limiting portion and the fourth limiting portion are smoothly connected;

[0038] The radial width of the third limiting portion is equal to the radial width of the fourth limiting portion, and the distance between the third limiting portion and the axis of the first slideway is smaller than the distance between the fourth limiting portion and the axis of the first slideway.

[0039] Preferably, the unlocking unit further comprises a reset component;

[0040] The reset assembly is connected to the motion unlocking block and is used to move the motion unlocking block to an initial position.

[0041] Preferably, the reset assembly comprises a spring fixing seat and a preload spring;

[0042] The spring fixing seat is arranged on the recliner assembly;

[0043] One end of the preload spring is connected to the spring fixing seat, and the other end of the preload spring is connected to the motion unlocking block. The preload spring is in a stretched state and is used to move the motion unlocking block to an initial position.

[0044] Preferably, the operating assembly is a slide rail unlocking handle, and the cable assembly includes a second cable;

[0045] One end of the second cable is connected to the slide rail unlocking handle, and the other end of the second cable is connected to the motion unlocking block. When the slide rail unlocking handle is operated, the second cable drives the motion unlocking block to move.

[0046] Preferably, the backrest limit stopper includes a limit side plate, a limit bottom plate and a limit slot;

[0047] The limiting side plate can be detachably mounted on the backrest side plate;

[0048] The limiting bottom plate is fixedly connected to the limiting side plate, and the limiting bottom plate is arc-shaped;

[0049] The limiting slot is arranged at the end of the limiting bottom plate and is used to limit the movable locking block.

[0050] A car comprises the above car seat.

[0051] In the above-mentioned car seat and car, a shift unit is provided on the recliner assembly of the car seat, and a backrest limit block is fixedly provided on the backrest side panel of the seat. When the cushion side panel moves relative to the slide rail assembly, it drives the movable locking block to move. When the movable locking block is in different positions, the movable locking block limits the backrest limit block, thereby limiting the different angle adjustment limit positions of the seat back. That is, the angle adjustment limit position of the seat back is adjusted by adjusting the shift unit, so that the angle adjustment limit position of the car seat back changes with the change of the seat position, thereby improving the space utilization rate in the car. The shift unit can be switched to different gears, that is, the angle adjustment limit position of the car seat back changes with the change of the car seat position. When the car seat is placed backward, the angle adjustment limit position of the car seat back makes full use of the rear space changed by adjusting the seat position, thereby increasing the adaptability range of the backrest angle, making the maximum use of the space in the car, providing passengers with a better riding experience, and improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is one of the overall structural schematic diagrams of the automobile seat in the present invention;

[0053] Figure 2 This is the second schematic diagram of the overall structure of the car seat in the present invention;

[0054] Figure 3 It is a partial front view structural schematic diagram of the automobile seat in the present invention;

[0055] Figure 4 It is one of the front view structural schematic diagrams of the shift unit in the present invention;

[0056] Figure 5 This is the second front view structural schematic diagram of the shift unit in the present invention;

[0057] Figure 6 It is a partial cross-sectional structural schematic diagram of the shift unit in the present invention;

[0058] Figure 7 It is a schematic diagram of the overall structure of the backrest limit stopper in the present invention;

[0059] Figure 8 It is a schematic diagram of the overall structure of the movable locking block in the present invention;

[0060] Fig. 9 It is one of the overall structural schematic diagrams of the motion unlocking block in the present invention;

[0061] Fig.10 This is the second schematic diagram of the overall structure of the motion unlocking block in the present invention;

[0062] Fig.11 It is one of the overall structural schematic diagrams of the shift block in the present invention;

[0063] Fig.12 This is the second schematic diagram of the overall structure of the shift block in the present invention;

[0064] Fig.13 It is a schematic diagram of the overall structure of the chute in the present invention;

[0065] Fig.14 It is a schematic diagram of the front cross-sectional structure of the chute in the present invention;

[0066] Fig.15 It is a schematic diagram of the front cross-sectional structure of a chute in another embodiment of the present invention.

[0067] in,

[0068] 1. Backrest side panels;

[0069] 2. Seat side panels;

[0070] 3. Recliner assembly; 31. Recliner lower connecting plate; 32. Recliner linkage rod;

[0071] 4. Slide rail assembly;

[0072] 5. Backrest limit block; 51. Limit side plate; 52. Limit bottom plate; 53. Limit slot;

[0073] 6. movable locking block; 61. locking block body; 62. locking pin;

[0074] 7. Shift unit; 71. Slide; 711. First gear position slot; 712. Second gear position slot; 713. Slope guide structure; 714. First side plate; 715. First outer arc plate; 716. First inner arc plate; 717. First outer through slot; 718. First inner through slot; 719. First outer track; 710. First inner track; 72. Shift block; 721. Shift slot; 7211. First limiting portion; 7212. Second limiting portion; 722. Second side plate; 723. Second outer arc plate; 724. Second inner arc plate; 725. Second outer through slot; 726. Second inner through slot; 727. Second outer track; 728. Second inner track; 73. First cable;

[0075] 8. Unlocking unit; 81. Motion unlocking block; 811. Unlocking slot; 8111. Third limiting part; 8112. Fourth limiting part; 812. Third side plate; 813. Third outer arc plate; 814. Third inner arc plate; 815. Third outer through slot; 816. Third inner through slot; 82. Operating assembly; 821. Slide rail unlocking button; 822. Slide rail unlocking handle 822; 823. Slide rail unlocking assembly; 83. Cable assembly; 831. Second cable; 832. Third cable; 833. Fourth cable; 84. Reset assembly; 841. Spring fixing seat; 842. Preload spring. DETAILED DESCRIPTION

[0076] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0077] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0078] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] The embodiment of the present invention provides a car seat, please refer to Figure 1 and Figure 2The car seat includes a backrest side panel 1, a cushion side panel 2, a recliner assembly 3 and a slide rail assembly 4. The recliner assembly 3 is arranged at the connection between the backrest side panel 1 and the cushion side panel 2, and also includes a backrest limit block 5, a movable locking block 6 and a shift unit 7; the backrest limit block 5 is installed on the backrest side panel 1; one end of the movable locking block 6 is connected to the shift unit 7, and the other end is mutually limited with the backrest limit block 5; the shift unit 7 is connected to the slide rail assembly 4 and the movable locking block 6. When the relative position between the cushion side panel 2 and the slide rail assembly 4 changes, the shift unit 7 adjusts the angle adjustment limit position of the movable locking block 6 and the backrest limit block 5.

[0080] As an example, the seat frame includes a cushion frame and a backrest frame, the cushion side panels 2 are arranged on both sides of the cushion frame, the backrest side panels 1 are arranged on both sides of the backrest frame, and a slide rail assembly 4 is arranged under the cushion frame. The cushion frame can move on the slide rail assembly 4, driving the cushion side panels 2 to slide relative to the slide rail assembly 4, so that the relative position between the cushion side panels 2 on both sides of the cushion frame and the slide rail assembly 4 changes. The backrest limit block 5 is connected to the backrest side panel 1 by fasteners or is directly welded to the backrest side panel 1; the recliner lower connecting plate 31 of the recliner assembly 3 is connected to the backrest side panel 1 by fasteners or is directly welded to the backrest side panel 1, and the recliner lower connecting plate 31 is fixedly mounted on the seat cushion side panel 2. The backrest side panels 1 on both sides of the backrest frame and the seat cushion side panels 2 on both sides of the seat cushion frame adopt the same structure. The recliner assemblies 3 on both sides are connected by a recliner connecting rod 32, so that the backrest side panels 1 on both sides are linked when adjusting the angle, so that the backrest frame can be adjusted, that is, the angle between the seat cushion side panel 2 and the backrest side panel 1 is adjusted by the recliner assembly 3. When the backrest side plate 1 is adjusted, the backrest limit block 5 and the movable locking block 6 fixed to the backrest side plate 1 move relative to the backrest limit block 5. During the relative movement of the backrest limit block 5 and the movable locking block 6, the two will interfere with each other at a certain position, that is, the two will contact each other. Therefore, the angle adjustment limit position of the seat back is the position when the backrest limit block 5 and the movable locking block 6 are in contact. The shift unit 7 is connected to the slide rail assembly 4 and the movable locking block 6. When the seat cushion side plate 2 moves relative to the slide rail assembly 4, the movable locking block 6 is driven to move. The position of the movable locking block 6 is changed by the shift unit 7 to achieve the purpose of changing the angle adjustment limit position of the seat back. The shift unit 7 can adjust the position of the movable locking block 6. When the movable locking block 6 reaches a certain position, the movable locking block 6 can be fixed at the position that has been reached. Since the adjustment of the seat back is an adjustment in terms of angle, the angle adjustment limit position can also be called the angle adjustment limit angle.

[0081] In this embodiment, a shift unit 7 is provided on the recliner assembly 3 of the automobile seat, and a backrest limit block 5 is fixedly provided on the backrest side panel 1 of the automobile seat. When the cushion side panel 2 moves relative to the slide rail assembly 4, the movable locking block 6 is driven to move. When the movable locking block 6 is in different positions, the movable locking block 6 limits the backrest limit block 5, thereby limiting the different angle adjustment limit positions of the seat back. That is, the angle adjustment limit position of the seat back is adjusted by adjusting the shift unit 7, so that the angle adjustment limit position of the automobile seat back changes with the change of the seat position, thereby improving the space utilization rate in the vehicle.

[0082] As a preferred solution, the angle adjustment movement of the backrest frame, the movement of the backrest limit block 5 and the movement of the movable locking block 6 are all rotations performed with the angle adjuster linkage rod 32 as the rotation axis.

[0083] In one embodiment, please refer to Figure 3 and Figure 4 The shift unit 7 includes a slide groove 71, a shift block 72 and a first cable 73; the slide groove 71 is fixedly arranged on the adjuster assembly 3, and the slide groove 71 is provided with a first slideway; the shift block 72 is slidably connected to the first slideway, and the movable locking block 6 is connected to the shift block 72. When the shift block 72 moves along the first slideway, the shift block 72 adjusts the angular adjustment limit position of the movable locking block 6 and the backrest limit block 5 that limit each other; one end of the first cable 73 is connected to the slide rail assembly 4, and the other end is connected to the shift block 72, which is used to drive the shift block 72 to move along the first slideway when the seat cushion side panel 2 moves relative to the slide rail assembly 4.

[0084] As an example, the shift unit 7 includes a slide groove 71, a shift block 72 and a first cable 73; the direction of the first slideway of the slide groove 71 is consistent with the rotation direction of the recliner assembly 3, the shift block 72 is slidably connected with the slide groove 71, and the movable locking block 6 moves synchronously with the shift block 72. The slide groove 71 is fixedly mounted on the recliner assembly 3, and a first slideway consistent with the motion trajectory of the recliner assembly 3 is arranged inside the slide groove 71, and the shape of the first slideway is consistent with the trajectory of the rotation direction of the recliner assembly 3. The shift block 72 is arranged inside the slide groove 71, is slidably connected with the first slideway of the slide groove 71, and moves along the first slideway, and the shape of the shift block 72 is also adapted to the first slideway of the slide groove 71. One end of the first cable 73 is connected to the slide rail assembly 4, specifically to the clamp or other moving parts of the slide rail assembly 4, and the second end of the first cable 73 is connected to the shift block 72, which is used to connect the shift block 72 to the slide rail assembly 4. When the car seat moves on the slide rail assembly 4, the shift block 72 moves accordingly under the action of the first cable 73. In this example, one end of the first cable 73 is connected to the rear end of the shift block 72, and the other end of the first cable 73 is connected to the slide rail assembly 4. When the external force causes the slide rail assembly 4 to work, the slide rail assembly 4 drives the first cable 73 to move, the first cable 73 drives the shift block 72 to move, and the shift block 72 drives the movable locking block 6 to move backward, and the movable locking block 6 changes position along the first slide. At this time, the angle adjustment limit position of the seat back changes, that is, the angle adjustment limit position has completed the shift.

[0085] In this embodiment, when the passenger or the driver adjusts the seat position, the slide rail assembly 4 starts to work, the first cable 73 connected to the slide rail assembly 4 is pulled, and the shift block 72 connected to the other end of the first cable 73 is pulled by the first cable 73. The movement direction of the shift block 72 when being pulled is to move backward along the first slide track of the slide groove 71. At this time, the movable locking block 6 synchronized with the shift block 72 moves backward with the shift block 72, and the contact position of the backrest limit block 5 and the movable locking block 6 changes backward, so that the adjustment angle limit position of the seat back is changed backward. In other words, the function of changing the adjustment angle limit position of the seat back by adjusting the seat position is realized.

[0086] In the above embodiment, the shift block 72 is slidably set inside the slide groove 71, and the first slide between the shift block 72 and the slide groove 71 can be lubricated or a rolling device can be added according to needs, that is, lubrication or a rolling device is added between the shift block 72 and the first slide of the slide groove 71, and the rolling device can be a plurality of balls or rollers.

[0087] In one embodiment, please refer to Figure 8 and Fig.14The slide groove 71 is provided with at least two gear slots, and at least two gear slots are distributed along the first slide direction; the shift block 72 is provided with a shift slot 721, and the shift slot 721 is provided on the side of the shift block 72; the movable locking block 6 includes a locking block body 61 and a locking pin 62; one end of the locking block body 61 is mutually limited by the backrest limit block 5, and the other end is arranged in the shift block 72; the locking pin 62 is fixedly arranged on the locking block body 61, and the locking pin 62 passes through the shift slot 721. When the locking block body 61 moves along the first slide, the locking pin 62 engages with the gear slot.

[0088] As an example, at least two gear slots are arranged on a side wall inside the slide slot 71 and are distributed along the first slide direction of the slide slot 71; a locking pin 62 is arranged on the locking block body 61, and the end of the locking pin 62 exceeds the shift slot 721 on the side of the shift block 72 by a certain distance, so that the end of the locking pin 62 can be inserted into the shift slot 721; the depth of the gear slot is shallow, and the end of the locking pin 62 can fall into the gear slot, so that the movable locking block 6 can be locked, and the locking block body 61 can be pulled by external force to pull the end of the locking pin 62 out of the gear slot.

[0089] As an example, the gear slot may be the first gear slot 711, and the first gear slot 711 is a round hole. Figure 8 and Fig.14 When the angle adjustment limit position is adjusted, the seat back moves backward to push the movable locking block 6 to the position of the first gear slot 711 corresponding to the slide groove 71, and the locking pin 62 is inserted into the first gear slot 711 of the slide groove 71 following the guidance of the first gear slot 711 to complete the locking; when the seat back is adjusted backward to a certain angle, the backrest limit block 5 interferes with the movable locking block 6, playing a limit limit role.

[0090] As another example, refer to Fig.15 The gear slot can be a second gear slot 712, and the outer circumferential wall of the second gear slot 712 is provided with a ramp guide structure 713, which can facilitate the locking pin 62 to smoothly enter or be pulled out of the second gear slot 712. When the angle adjustment limit position is adjusted, the seat back moves backward to push the movable locking block 6 to move to the position of the first gear slot 711 corresponding to the slide slot 71, and the locking pin 62 moves smoothly along the ramp guide structure 713 to the second gear slot 712 to complete the locking; when the seat back is adjusted backward to a certain angle, the backrest limit block 5 interferes with the movable locking block 6, which plays a role of limit limit.

[0091] In one embodiment, please refer to Fig.13The slide 71 includes two first side plates 714, a first outer arc plate 715 and a first inner arc plate 716. The two first side plates 714, the first outer arc plate 715 and the first inner arc plate 716 are combined to form an arc-shaped annular channel; the two first slideways are respectively arranged on the opposite surfaces of the first outer arc plate 715 and the first inner arc plate 716, and the two first slideways are arc slideways with the same curvature as the first outer arc plate 715 and the first inner arc plate 716; the first outer arc plate 715 is provided with a first outer through groove 717 in the radial direction, and the first inner arc plate 716 is provided with a first inner through groove 718 in the radial direction. The first outer through groove 717 and the first inner through groove 718 are arranged opposite to each other, and the locking block body 61 passes through the first outer through groove 717 and the first inner through groove 718 in the radial direction; at least two gear slots are located on the inner side surface of the same first side plate 714, and are distributed in an arc shape with the axis of the first slideway.

[0092] As an example, the motion trajectory of the recliner assembly 3 is an arc trajectory with the recliner linkage rod 32 as the axis, so the overall shape of the slide slot 71 is also an arc, that is, the two first side plates 714, the first outer arc plate 715 and the first inner arc plate 716 together form an arc-shaped annular channel. The slide slot 71 is hollow inside and an inner slideway, i.e., the first slideway, is provided on its inner side. Fig.13 As shown, the first slide includes a first outer track 719 and a first inner track 710. The first outer track 719 is arranged below the first outer arc plate 715, and the first inner track 710 is arranged above the first inner arc plate 716. The first outer track 719 and the first inner track 710 are arranged opposite to each other and have the same curvature. The locking block body 61 passes through the first outer through groove 717 and the first inner through groove 718 from top to bottom in sequence. The locking pin 62 on the locking block body 61 can be inserted into the gear slot on the inner side of the first side plate 714, so that the locking pin 62 completes the locking operation; at least two gear slots are located on the inner side of the same first side plate 714, and are distributed in an arc shape with the axis of the first slide, which can facilitate the locking pin 62 to be inserted into different gear slots to achieve different angle adjustments.

[0093] In one embodiment, please refer to Fig.11 and Fig.12 The shift block 72 includes two second side plates 722, a second outer arc plate 723 and a second inner arc plate 724. The two second side plates 722, the second outer arc plate 723 and the second inner arc plate 724 together form an arc-shaped annular channel; the second outer arc plate 723 and the second inner arc plate 724 are slidably connected to the first slideway; the second outer arc plate 723 is provided with a second outer through groove 725 in the radial direction, and the second inner arc plate 724 is provided with a second inner through groove 726 in the radial direction. The second outer through groove 725 and the second inner through groove 726 are arranged opposite to each other, and the locking block body 61 passes through the second outer through groove 725 and the second inner through groove 726 in the radial direction; the shift groove 721 is provided on the second side plate 722.

[0094] As an example, the overall shape of the shift block 72 is an arc-shaped annular channel, which is arranged inside the slide groove 71. The outer side surface of the shift block 72 is provided with an outer slideway, that is, a second outer arc plate 723 and a second inner arc plate 724. Fig.13 The first slideway shown includes a first outer track 719 and a first inner track 710, a second outer arc plate 723 is slidably connected to the first outer track 719, and a second inner arc plate 724 is slidably connected to the first inner track 710. The slide groove 71 and the shift block 72 have the same arc shape of curvature, and the two match each other and can slide relative to each other. The locking block body 61 passes through the second outer through groove 725 and the second inner through groove 726 from top to bottom in sequence, and the locking pin 62 fixed on the locking block body 61 passes out of the shift groove 721 from the locking block body 61 to the outside, and then the locking pin 62 is fixed through the gear slot.

[0095] In this embodiment, the shift block 72 and the slide groove 71 are both provided with grooves that pass through from top to bottom, that is, the grooves radially penetrate the shift block 72 and the slide groove 71, and the locking block body 61 penetrates the grooves of the shift block 72 and the slide groove 71 in the radial direction; the locking block body 61 is provided with a locking pin 62 that can pass through the shift groove 721 and match the gear slot, so that the movable locking block 6 moves with the movement of the shift block 72.

[0096] In one embodiment, please refer to Fig.11 and Fig.12 , the two ends of the shift groove 721 are respectively the first limiting portion 7211 and the second limiting portion 7212; the first limiting portion 7211 and the second limiting portion 7212 are smoothly connected; the radial width of the first limiting portion 7211 is greater than the radial width of the second limiting portion 7212, and the distance between the bottom of the first limiting portion 7211 and the axis of the first slideway is less than the distance between the second limiting portion 7212 and the axis of the first slideway. The radial width here refers to the width in the radial direction of the shift groove 721 arranged in an arc shape, and the top and bottom here are respectively the radially outward and inward parts along the shift groove 721.

[0097] As an example, in order to partially drive the up and down movement of the movable locking block 6 by the forward and backward movement of the shift block 72, a shift groove 721 is provided on at least one side of the shift block 72. Since a vertically penetrating groove is provided inside the shift block 72 for accommodating the movable locking block 6, the shift groove 721 penetrates the side of the shift block 72, and the end of the locking pin 62 of the movable locking block 6 passes through the shift groove 721; the shift groove 721 is an overall shape with a large rear end and a small front end, specifically: the shift groove 721 The rear end of 21 is the first limiting portion 7211, and the front end is the second limiting portion 7212. The radial width of the first limiting portion 7211 is greater than the radial width of the second limiting portion 7212. For example, the radial width of the first limiting portion 7211 is greater than twice the diameter of the locking pin 62, and the width of the second limiting portion 7212 is greater than once and less than twice the diameter of the locking pin 62. The radial width of the first limiting portion 7211 is greater than the radial width of the second limiting portion 7212. When the locking pin 62 is located at the bottom of the first limiting portion 7211, the distance between the end face of the locking pin 62 and the axis of the recliner linkage rod 32 is equal to the distance between the gear slot and the axis of the recliner linkage rod 32, that is, the locking pin 62 is on the distribution arc line of the multiple gear slots; when the locking pin 62 is located at the second limiting portion 7212, the position of the locking pin 62 is higher than the distribution arc line of the multiple gear slots, so that the locking pin 62 can be disengaged from the gear slot and slide along the guide of the shift slot 721 to the second limiting portion 7212, so that the locking pin 62 is changed from a locked state to an unlocked state. The distance between the bottom of the first limiting portion 7211 and the axis of the first slide is smaller than the distance between the second limiting portion 7212 and the axis of the first slide, so that when the locking pin 62 slides from the first limiting portion 7211 to the second limiting portion 7212, the distance between the locking pin 62 and the axis of the first slide gradually increases to achieve an unlocking effect; the first limiting portion 7211 and the second limiting portion 7212 are smoothly connected by a curve.

[0098] In this embodiment, when the passenger or the driver adjusts the seat position, the slide rail assembly 4 starts to work, the first cable 73 is pulled, and the shift block 72 is pulled by the first cable 73. At this time, the movable locking block 6 moves backward with the shift block 72 under the force of the locking pin 62, and the contact position between the backrest limit block 5 and the movable locking block 6 changes backward, realizing the function of changing the adjustment angle limit position of the seat back by adjusting the seat position. In the process of the movable locking block 6 moving with the shift block 72, the locking pin 62 of the movable locking block 6 can change its height relative to the axis of the first slideway as the relative position with the shift groove 721 changes, and the locking pin 62 is inserted into the gear slot of the slide groove 71 with the gear slot guide to complete the locking. The outer circular wall of the gear slot is provided with a ramp guide structure 713, and the ramp guide structure 713 can be provided according to the shape of the shift groove 721.

[0099] In one embodiment, please refer to Figure 5and Figure 6 The car seat also includes an unlocking unit 8, which includes a motion unlocking block 81, an operating component 82 and a cable component 83; the operating component 82 is arranged on the seat cushion side panel 2; one end of the cable component 83 is connected to the operating component 82, and the other end is connected to the movable locking block 6 through the motion unlocking block 81, and the cable component 83 is used to unlock the movable locking block 6 when the operating component 82 is operated; the motion unlocking block 81 is slidably connected to the shift block 72, and the motion unlocking block 81 is connected to the movable locking block 6 for unlocking the movable locking block 6, and an unlocking groove 811 corresponding to the shift groove 721 is opened on the side of the movable locking block 6, and the locking pin 62 is penetrated in the unlocking groove 811.

[0100] As an example, the car seat also includes an unlocking unit 8, and the shifting unit 7 includes a motion unlocking block 81 and a cable assembly 83. The motion unlocking block 81 is arranged at the movable locking block 6; one end of the cable assembly 83 is connected to the motion unlocking block 81, and the other end of the cable assembly 83 is connected to the operating assembly 82. The cable assembly 83 is used to connect the operating assembly 82 with the motion unlocking block 81. When the passenger or the driver operates the operating assembly 82, the motion unlocking block 81 moves accordingly under the action of the cable assembly 83.

[0101] In this embodiment, the slide groove 71, the shift block 72 and the motion unlocking block 81 are slidably nested from the outside to the inside, and both ends of the slide groove 71 and the shift block 72 are transparent, that is, the motion unlocking block 81 in the innermost layer can be seen from one end of the slide groove 71. One end of the first cable 73 in the shift unit 7 passes through the rear end of the slide groove 71 and is connected to the rear end of the shift block 72, and the other end of the first cable 73 is connected to the slide rail assembly 4. One end of the cable assembly 83 of the unlocking unit 8 passes through the rear end of the slide groove 71 and the shift block 72 and is connected to the motion unlocking block 81. The operating assembly 82 is set on the side of the car seat. When the passenger or the driver operates the operating assembly 82, the cable assembly 83 is actuated to enable the locking pin 62 to unlock the movable locking block 6.

[0102] In one embodiment, please refer to Fig. 9 and Fig.10 The motion unlocking block 81 includes two third side plates 812, a third outer arc plate 813 and a third inner arc plate 814; the motion unlocking block 81 is slidably connected with the shift block 72 through the third outer arc plate 813 and the third inner arc plate 814; the third outer arc plate 813 and the third inner arc plate 814 are respectively provided with a third outer through groove 815 and a third inner through groove 816 in the radial direction, the third outer through groove 815 and the third inner through groove 816 are arranged opposite to each other, and the locking block body 61 is penetrated by the third outer through groove 815 and the third inner through groove 816 in the radial direction; the unlocking groove 811 is provided on the third side plate 812.

[0103] As an example, the motion unlocking block 81 is disposed in the shift block 72, and a second outer track 727 and a second inner track 728 (such as Fig.11 As shown in the figure, the motion unlocking block 81 is arranged between the second outer track 727 and the second inner track 728 of the shift block 72, and the motion unlocking block 81 is slidably connected with the second outer track 727 and the second inner track 728 through the third outer arc plate 813 and the third inner arc plate 814 respectively. The motion unlocking block 81, like the shift block 72 and the slide groove 71, is provided with a groove that passes through from top to bottom, namely, the third outer through groove 815 and the third inner through groove 816, that is, a groove that radially passes through the motion unlocking block 81, that is, there is a channel that passes through the motion unlocking block 81, the shift block 72 and the slide groove 71 in the radial direction, and the locking block body 61 is arranged in the channel, and the motion unlocking block 81, the shift block 72 and the slide groove 71 can slide relative to each other, and the channel always exists and is not blocked due to the relative movement of the three. The locking block body 61 is arranged in the channel that passes through the motion unlocking block 81, the shift block 72 and the slide groove 71 in the radial direction.

[0104] In this embodiment, the locking pin 62 fixed on the locking block body 61 passes out from the locking block body 61 through the unlocking groove 811 and the shifting groove 721 in turn, and then the locking pin 62 is fixed by the gear slot. The movable locking block 6 moves with the movement of the movable unlocking block 81, thereby realizing the unlocking of the movable locking block 6.

[0105] In one embodiment, please refer to Fig. 9 and Fig.10 The two ends of the unlocking groove 811 are respectively the third limiting portion 8111 and the fourth limiting portion 8112; the third limiting portion 8111 and the fourth limiting portion 8112 are smoothly connected; the radial width of the third limiting portion 8111 is equal to the radial width of the fourth limiting portion 8112, and the distance between the third limiting portion 8111 and the axis of the first slide is smaller than the distance between the fourth limiting portion 8112 and the axis of the first slide.

[0106] As an example, in order to partially drive the up-and-down movement of the movable locking block 6 by the forward and backward movement of the motion unlocking block 81, an unlocking groove 811 is provided on at least one side of the motion unlocking block 81. Since a third outer through groove 815 and a third inner through groove 816 are provided inside the motion unlocking block 81, which are connected vertically to place the movable locking block 6, the unlocking groove 811 passes through the side of the motion unlocking block 81, and the end of the locking pin 62 of the movable locking block 6 passes through the unlocking groove 811. The unlocking groove 811 has an overall shape with a low rear end and a high front end, specifically: the rear end of the unlocking groove 811 is the third limiting portion 8111, and the front end is the fourth limiting portion 8112, the radial width of the third limiting portion 8111 is equal to the radial width of the fourth limiting portion 8112, and the radial widths of the third limiting portion 8111 and the fourth limiting portion 8112 are greater than the diameter of the locking pin 62, so that the locking pin 62 can move between the third limiting portion 8111 and the fourth limiting portion 8112. When the locking pin 62 is located at the third limiting portion 8111, the locking pin 62 is on the distribution arc of the multiple gear slots, and the locking pin 62 is in a locked state; when the locking pin 62 is located at the fourth limiting portion 8112, the position of the locking pin 62 is higher than the distribution arc of the multiple gear slots, so that the locking pin 62 is in an unlocked state. The third limiting portion 8111 and the fourth limiting portion 8112 are smoothly connected by a curve; the locking pin 62 passes through the unlocking groove 811 and the shifting groove 721 in sequence.

[0107] In this embodiment, the sliding groove 71, the shift block 72 and the motion unlocking block 81 are slidably nested in sequence from the outside to the inside, and the shift groove 721 of the shift block 72 is arranged opposite to the unlocking groove 811 of the motion unlocking block 81, specifically, the first limiting portion 7211 of the shift groove 721 is arranged opposite to the third limiting portion 8111 of the unlocking groove 811, and the second limiting portion 7212 of the shift groove 721 is arranged opposite to the fourth limiting portion 8112 of the unlocking groove 811; in the locked state, when the passenger or the driver operates the operating component 82, the cable component 83 drives the motion unlocking block 81, and the shift groove 721 is arranged opposite to the third limiting portion 8111 of the unlocking groove 811. The radial width of the first limiting portion 7211 of the shift groove 721 of the block 72 is greater than the radial width of the second limiting portion 7212, so that it has rising space. Therefore, the movable locking block 6 moves upward with the moving unlocking block 81 under the force of the locking pin 62, and the locking pin 62 drives the movable locking block 6 to move upward. The locking pin 62 on the movable locking block 6 disengages from the shift slot to achieve unlocking. In this example, during the upward movement of the movable locking block 6, the locking pin 62 moves from the lower part of the first limiting portion 7211 to the upper part, and from the third limiting portion 8111 to the fourth limiting portion 8112.

[0108] In one embodiment, please refer to Figure 6 The unlocking unit 8 also includes a reset component 84; the reset component 84 is connected to the motion unlocking block 81 and is used to move the motion unlocking block 81 to an initial position.

[0109] As an example, since the cable assembly 83 can only provide a pulling force in a single direction for the motion unlocking block 81, a reset assembly 84 should also be provided on the other side of the motion unlocking block 81. The reset assembly 84 is used to pull the motion unlocking block 81 from the direction opposite to the cable assembly 83, thereby restoring the motion unlocking block 81 to its initial position, that is, the farthest position away from the pulling direction of the cable assembly 83.

[0110] In this embodiment, the reset component 84 pulls the motion unlocking block 81 forward, and the motion unlocking block 81 drives the locking pin 62, the movable locking block 6, and the shift block 72 to move forward. When the reset state of the angle adjustment limit position is reached, the locking pin 62 is in the second limit portion 7212 and the third limit portion 8111, and the second limit portion 7212 coincides with the third limit portion 8111; in this original angle adjustment limit position, the backrest side panel 1 moves backward and pushes the locking pin 62 of the movable locking block 6 to move to the frontmost gear slot of the slide groove 71 and then inserts it into the gear slot of the slide groove 71 along the ramp guide structure 713, completing the locking in the original angle adjustment limit position state.

[0111] In one embodiment, please refer to Figure 5 and Figure 6 The reset assembly 84 includes a spring fixing seat 841 and a pre-tensioning spring 842; the spring fixing seat 841 is arranged on the angle adjuster assembly 3; one end of the pre-tensioning spring 842 is connected to the spring fixing seat 841, and the other end of the pre-tensioning spring 842 is connected to the motion unlocking block 81, and the pre-tensioning spring 842 is in a stretched state, and is used to move the motion unlocking block 81 to the initial position.

[0112] As an example, the spring fixing seat 841 is fixedly welded on the lower connecting plate 31 of the angle adjuster and is located at the front end of the slide slot 71. One end of the pre-tensioning spring 842 is installed on the spring fixing seat 841, and the other end of the pre-tensioning spring 842 is inserted into the front end of the slide slot 71 and the shift block 72 in sequence and then connected to the motion unlocking block 81.

[0113] When the locking pin 62 is in the reset state, the shift block 72 is moved forward and the locking pin 62 is in the reset state.

[0114] In one embodiment, please refer to Figure 2 The operating component 82 is a slide rail unlocking handle 821, and the cable component 83 includes a second cable 831; one end of the second cable 831 is connected to the slide rail unlocking handle 821, and the other end of the second cable 831 is connected to the motion unlocking block 81. When the slide rail unlocking handle 821 is operated, the second cable 831 drives the motion unlocking block 81 to move.

[0115] As an example, the cable assembly 83 also includes a third cable 832 and a fourth cable 833, and the third cable 832 and the fourth cable 833 are both arranged under the car seat; usually, the adjustable car seat is provided with a slide rail unlocking handle 822 and a slide rail unlocking assembly 823 in addition to the slide rail assembly 4 below, the slide rail unlocking handle 821 is used to adjust the position of the seat, and the slide rail unlocking handle 822 is used to unlock the seat to adjust the front and rear position of the seat; one end of the fourth cable 833 is connected to the slide rail unlocking handle 821, and the other end of the fourth cable 833 drives the third cable 832 and the second cable 831 respectively, the third cable 832 drives the slide rail unlocking assembly 823 to unlock the lateral slide rail, and the second cable 831 drives the motion unlocking block 81 to move to realize the unlocking operation.

[0116] As an example, the slide rail unlocking handle 821 of the car seat is used to adjust the position of the seat. It is usually located on the side of the bottom of the seat. When it is pulled, the lock between the seat and the ground is released, and the seat can be slid forward and backward; the slide rail unlocking handle 822 is used to adjust the front and rear position of the seat. It is usually located at the front end of the lower part of the seat. When it is pulled, the lock between the seat and the ground is released, and the seat can be slid forward or backward. The principle is: the car seat is locked to the base or the ground through a device to prevent the passenger from shaking during driving, and through the unlocking operation of the slide rail unlocking handle 822, the lock between the seat and the ground will be released, so that the seat can move forward and backward; the slide rail unlocking assembly 823 is an important component of the seat, and its main function is to control the forward and backward sliding of the seat. The mechanism assembly includes components such as lateral slide rails, horizontal slide rails and locking devices. When the handle at the bottom of the seat is pulled, the locking device of the horizontal slide rail will be released; and for the lateral slide rail, a manual or electric unlocking handle is usually provided. After pressing the unlocking handle, the seat can move freely forward and backward along the lateral slide like a horizontal slide rail. In general, the functions of the slide rail assembly 4, the slide rail unlocking buckle 821, the slide rail unlocking handle 822 and the slide rail unlocking assembly 823 are to enable the car seat to be adjusted forward and backward and left and right to achieve a more comfortable, safe and ergonomic sitting experience, and they are all common seat adjustment mechanisms.

[0117] In one embodiment, please refer to Figure 1 and Figure 7The backrest limit block 5 includes a limit side plate 51, a limit bottom plate 52 and a limit slot 53; the limit side plate 51 is detachably mounted on the backrest side plate 1; the limit bottom plate 52 is fixedly connected to the limit side plate 51, and the limit bottom plate 52 is arc-shaped; the limit slot 53 is arranged at the end of the limit bottom plate 52, and is used to limit the movable locking block 6.

[0118] As an example, the side of the backrest side plate 1 is fixedly welded or installed with a backrest limit block 5 by fasteners, and the lower end of the backrest limit block 5 is provided with a limit bottom plate 52, and the two sides or the rear side of the limit bottom plate 52 are provided with limit slots 53, and the upper part of the movable locking block 6 matches the limit slots 53. The limit side plate 51 of the backrest limit block 5 is detachably installed on the backrest side plate 1 by welding, bolts or other fasteners, and the limit bottom plate 52 is in an arc plate shape, and the arc-shaped rotation axis of the limit bottom plate 52 is the axis of the recliner linkage rod 32.

[0119] In this embodiment, when the movable locking block 6 interferes with the backrest limit block 5 during movement, the movable locking block 6 enters the limit slot 53 and contacts the limit slot 53. At this time, the limit angle adjustment position is reached between the two, and the angle of the backrest side panel 1 at this time is the angle adjustment limit in this state.

[0120] The above embodiment of the present invention provides a car seat having at least the following two working processes:

[0121] Shifting process: pull up the slide rail unlocking button 821, and the movement of the slide rail unlocking button 821 drives the fourth cable 833, and the movement of the fourth cable 833 drives the third cable 832 and the second cable 831 respectively, and the third cable 832 drives the slide rail unlocking assembly 823 to unlock the slide rail assembly 4, and the second cable 831 drives the moving unlocking block 81, and the moving unlocking block 81 drives the locking pin 62 to move upward along the unlocking groove 811 of the moving unlocking block 81, and the locking pin 62 drives the movable locking block 6 to move upward, and the unlocking process is completed at this time; when the slide rail assembly 4 is unlocked and the shifting mechanism is unlocked, the slide rail assembly 4 is moved with the help of external force, and the slide rail assembly 4 drives the first cable 73 to move, the first cable 73 drives the shift block 72 to move, the shift block 72 drives the locking pin 62 and the movable locking block 6 to move backward, at this time, the limit angle of the backrest has completed the shift, the shift gear is determined by the movement stroke of the slide rail, and the slide rail unlocking button 821 is released after the slide rail moves to the right position, and the slide rail unlocking assembly 823 is automatically locked at this time; when the shift is completed, the backrest moves backward to push the movable locking block 6 to the corresponding gear slot position of the slide groove 71, and then it is inserted into the gear slot of the slide groove 71 along the ramp guide structure 713 to complete the locking; when the backrest is adjusted to a certain angle, the backrest limit block 5 interferes with the movable locking block 6 to play a limit limit role.

[0122] Reset process: first adjust the backrest forward, then pull up the slide rail unlocking handle 821, the movement of the slide rail unlocking handle 821 drives the fourth cable 833, the movement of the fourth cable 833 drives the third cable 832 and the second cable 831 respectively, the third cable 832 drives the slide rail unlocking assembly 823 to unlock the slide rail assembly 4, the second cable 831 drives the moving unlocking block 81, the moving unlocking block 81 drives the locking pin 62 to move upward along the unlocking slot 811 of the moving unlocking block 81, the locking pin 62 drives the movable locking block 6 to move upward, and the unlocking process is completed at this time; With the help of external force, the slide rail assembly 4 moves in the original direction. At this time, the second cable 831 is in a relaxed state. At this time, the preload spring 842 pulls the motion unlocking block 81 to move. The motion unlocking block 81 drives the locking pin 62 and the movable locking block 6 to reset forward. The locking pin 62 drives the shift block 72 to move forward. When the slide rail assembly 4 stops moving, other mechanisms stop at the same time. At this time, the angle adjustment limit position is reset. When the backrest assembly moves backward, it can push the movable locking block 6 to move to the corresponding gear slot position of the slide groove 71 and then insert it into the gear slot of the slide groove 71 along the ramp guide structure 713 to complete the locking.

[0123] An embodiment of the present invention further provides a car, comprising the above-mentioned car seat.

[0124] As an example, the seat frame of the automobile includes a cushion frame and a backrest frame, the cushion side panels 2 and the backrest side panels 1 are respectively arranged on both sides of the cushion frame and the backrest frame, and a slide rail assembly 4 is arranged below the cushion frame, and the cushion frame can move on the slide rail assembly 4. The backrest limit stopper 5 is connected to the backrest side panel 1 by fasteners or directly welded; the angle adjuster lower connecting plate 31 of the angle adjuster assembly 3 is connected to the backrest side panel 1 by fasteners or directly welded to the backrest side panel 1, and the angle adjuster lower connecting plate 31 is fixedly installed on the cushion side panel 2, and the backrest side panels 1 on both sides of the backrest frame and the cushion side panels 2 on both sides of the cushion frame adopt the same structure, and the angle adjuster assemblies 3 on both sides are connected by the angle adjuster linkage rod 32, so that the backrest side panels 1 on both sides are linked when adjusting the angle, so that the backrest frame is adjusted, that is, the angle between the cushion side panel 2 and the backrest side panel 1 is adjusted by the angle adjuster assembly 3. When the backrest side plate 1 is adjusted, the backrest limit block 5 and the movable locking block 6 fixed to the backrest side plate 1 move relative to the backrest limit block 5. During the relative movement of the backrest limit block 5 and the movable locking block 6, the two will interfere with each other at a certain position, that is, the two will contact each other. Therefore, the angle adjustment limit position of the seat back is the position when the backrest limit block 5 and the movable locking block 6 are in contact. The shift unit 7 is connected to the slide rail assembly 4 and the movable locking block 6. When the seat cushion side plate 2 moves relative to the slide rail assembly 4, the movable locking block 6 is driven to move. The position of the movable locking block 6 is changed by the shift unit 7 to achieve the purpose of changing the angle adjustment limit position of the seat back. The shift unit 7 can adjust the position of the movable locking block 6. When the movable locking block 6 reaches a certain position, the movable locking block 6 can be fixed at the position that has been reached. Since the adjustment of the seat back is an adjustment in terms of angle, the angle adjustment limit position can also be called the angle adjustment limit angle.

[0125] In this embodiment, a shift unit 7 is provided on the recliner assembly 3 of the automobile seat, and the adjustment of the seat back angle limit is achieved by adjusting the shift unit 7; the adjustment angle limit position of the automobile seat back changes with the change of the automobile seat position. When the automobile seat is placed backward, the adjustment angle limit position of the automobile seat back makes full use of the rear space changed by adjusting the seat position, thereby increasing the adaptability range of the backrest angle, making the best use of the space in the car, providing passengers with a better riding experience, and enhancing product competitiveness; an unlocking unit 8 is also provided, and the seat back angle limit is restored by the unlocking unit 8, and is used in conjunction with the shift unit 7 to increase the space for maximum use of the seat in the limited space in the car, and can be restored to improve comfort.

[0126] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A car seat, comprising a backrest side panel, a seat cushion side panel, a recliner assembly and a slide rail assembly, wherein the recliner assembly is arranged at the connection between the backrest side panel and the seat cushion side panel, and characterized in that: The automobile seat also includes a backrest limit stopper, a movable locking block and a shift unit; The backrest limit stopper is mounted on the backrest side plate; One end of the movable locking block is connected to the shift unit, and the other end is mutually limited with the backrest limit stopper; The shift unit is connected to the slide rail assembly and the movable locking block. When the relative position between the seat cushion side plate and the slide rail assembly changes, the shift unit adjusts the angular limit position of the movable locking block and the backrest limit block.

2. The vehicle seat according to claim 1, characterized in that: The shift unit comprises a slide slot, a shift block and a first cable; The slide groove is fixedly arranged on the angle adjuster assembly, and the slide groove is provided with a first slideway; The shift block is slidably connected to the first slideway, and the movable locking block is connected to the shift block. When the shift block moves along the first slideway, the shift block adjusts the angular limit position of the movable locking block and the backrest limit block. One end of the first cable is connected to the slide rail assembly, and the other end is connected to the shift block, and is used to drive the shift block to move along the first slide rail when the seat cushion side plate moves relative to the slide rail assembly.

3. The vehicle seat according to claim 2, characterized in that: The slide groove is provided with at least two gear position slots, and at least two of the gear position slots are distributed along the first slide direction; The shift block is provided with a shift groove, and the shift groove is provided on a side surface of the shift block; The movable locking block includes a locking block body and a locking pin; one end of the locking block body is mutually limited by the backrest limit block, and the other end is arranged in the shift block; the locking pin is fixedly arranged on the locking block body, and the locking pin passes through the shift groove. When the locking block body moves along the first slide, the locking pin is clamped on the shift slot.

4. The vehicle seat according to claim 3, characterized in that: The chute comprises two first side plates, a first outer arc plate and a first inner arc plate, and the two first side plates, the first outer arc plate and the first inner arc plate together form an arc-shaped annular channel; The two first slideways are respectively arranged on opposite surfaces of the first outer arc plate and the first inner arc plate, and the two first slideways are respectively arc-shaped slideways with the same curvature as the first outer arc plate and the first inner arc plate; The first outer arc plate is provided with a first outer through groove along the radial direction, the first inner arc plate is provided with a first inner through groove along the radial direction, the first outer through groove and the first inner through groove are arranged opposite to each other, and the locking block body passes through the first outer through groove and the first inner through groove along the radial direction; At least two of the gear slots are located on the inner side surface of the same first side plate and are distributed in an arc shape around the axis of the first slideway.

5. The vehicle seat according to claim 3, characterized in that: The shift block is arranged in the slide groove, and includes two second side plates, a second outer arc plate and a second inner arc plate, wherein the two second side plates, the second outer arc plate and the second inner arc plate together form an arc-shaped annular channel; The second outer arc plate and the second inner arc plate are slidably connected to the first slideway; The second outer arc plate is provided with a second outer through groove in the radial direction, the second inner arc plate is provided with a second inner through groove in the radial direction, the second outer through groove and the second inner through groove are arranged opposite to each other, and the locking block body passes through the second outer through groove and the second inner through groove in the radial direction; The shift groove is arranged on the second side plate.

6. The vehicle seat according to claim 5, characterized in that: The two ends of the shift groove are respectively a first limiting portion and a second limiting portion; The first limiting portion and the second limiting portion are smoothly connected; The radial width of the first limiting portion is greater than the radial width of the second limiting portion, and the distance between the bottom of the first limiting portion and the axis of the first slideway is less than the distance between the bottom of the second limiting portion and the axis of the first slideway.

7. The vehicle seat according to claim 3, characterized in that: The vehicle seat further comprises an unlocking unit, which comprises a motion unlocking block, an operating assembly and a cable assembly; The operating assembly is arranged on the seat cushion side panel; One end of the cable assembly is connected to the operating assembly, and the other end is connected to the movable locking block through the motion unlocking block, and the cable assembly is used to unlock the movable locking block when the operating assembly is operated; The motion unlocking block is slidably connected to the shift block, and the motion unlocking block is connected to the movable locking block for unlocking the movable locking block. An unlocking groove corresponding to the shift groove is provided on the side of the movable locking block, and the locking pin is inserted into the unlocking groove.

8. The vehicle seat according to claim 7, characterized in that: The motion unlocking block comprises two third side plates, a third outer arc plate and a third inner arc plate; The motion unlocking block is slidably connected to the shift block via the third outer arc plate and the third inner arc plate; The third outer arc plate and the third inner arc plate are respectively provided with a third outer through groove and a third inner through groove in the radial direction, the third outer through groove and the third inner through groove are arranged opposite to each other, and the locking block body passes through the third outer through groove and the third inner through groove in the radial direction; The unlocking slot is disposed on the third side plate.

9. The vehicle seat according to claim 8, characterized in that: The two ends of the unlocking slot are respectively a third limiting portion and a fourth limiting portion; The third limiting portion and the fourth limiting portion are smoothly connected; The radial width of the third limiting portion is equal to the radial width of the fourth limiting portion, and the distance between the third limiting portion and the axis of the first slideway is smaller than the distance between the fourth limiting portion and the axis of the first slideway.

10. The vehicle seat according to claim 7, characterized in that: The unlocking unit also includes a reset component; The reset assembly is connected to the motion unlocking block and is used to move the motion unlocking block to an initial position.

11. The vehicle seat according to claim 10, characterized in that: The reset assembly includes a spring fixing seat and a preload spring; The spring fixing seat is arranged on the recliner assembly; One end of the preload spring is connected to the spring fixing seat, and the other end of the preload spring is connected to the motion unlocking block. The preload spring is in a stretched state and is used to move the motion unlocking block to an initial position.

12. The vehicle seat according to claim 7, characterized in that: The operating assembly is a slide rail unlocking handle, and the cable assembly includes a second cable; One end of the second cable is connected to the slide rail unlocking handle, and the other end of the second cable is connected to the motion unlocking block. When the slide rail unlocking handle is operated, the second cable drives the motion unlocking block to move.

13. The vehicle seat according to claim 1, characterized in that The backrest limit stopper includes a limit side plate, a limit bottom plate and a limit slot; The limiting side plate can be detachably mounted on the backrest side plate; The limiting bottom plate is fixedly connected to the limiting side plate, and the limiting bottom plate is arc-shaped; The limiting slot is arranged at the end of the limiting bottom plate and is used to limit the movable locking block.

14. A car, characterized in that: The invention comprises the car seat according to any one of claims 1 to 13.

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