Zero-gravity seat framework and automobile seat
By using a five-link assembly and a motor-driven zero-gravity seat frame, the problem of small adjustment angle of the seat basin structure is solved, enabling large-angle and height adjustments and improving passenger comfort.
Patent Information
- Application Number
- CN202520499101.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-20
AI Technical Summary
The existing zero-gravity seats have a small adjustable angle for the seat basin structure, which cannot meet the comfort needs of passengers.
It adopts a five-bar linkage, including a zero-pressure adjustment component, a first zero-pressure linkage, a second zero-pressure linkage, a front linkage for height adjustment, a rear linkage for height adjustment, and a height adjustment component. Large-angle adjustment and height adjustment are achieved through a zero-pressure adjustment motor and a drive gear.
It achieves large-angle and height adjustment of the seat frame, improving the comfort of the occupants, meeting the support needs of the three main parts of the occupants, distributing pressure on the back and legs, and achieving an extremely comfortable state.
Smart Images
Figure CN223821534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat technology, and more specifically, to a zero-gravity seat frame and an automotive seat. Background Technology
[0002] As the automotive industry continues to develop and its level of intelligence increases, end customers and OEMs are placing ever greater demands on the comfort of car seats. Driven by new scenarios, zero-gravity seats are being mentioned more and more frequently. The goal of "zero-gravity" posture seat adjustment is to meet the support needs of the three main parts of the occupant's body: feet, thighs, and torso. This ensures that these three parts receive sufficient and appropriate support, distributing pressure on the back and legs, allowing the entire body's muscles to relax, and achieving the occupant's ultimate state of comfort.
[0003] In traditional designs, the seat frame often lacks angle adjustment, or can only be adjusted by a small angle of 6-8° through the seat basin. Even if the desired posture is achieved with this two-section adjustment, the good support of the design is compromised, resulting in limited improvement in comfort.
[0004] However, the existing seat structure uses a four-bar linkage, which results in a smaller adjustment angle for the seat. Utility Model Content
[0005] The purpose of this invention is to provide a zero-gravity seat frame and a car seat to alleviate the technical problem of the small adjustment angle of the seat pan in the prior art.
[0006] In a first aspect, the present invention provides a zero-gravity seat frame, including a seat cushion frame, a backrest frame, and a five-bar linkage assembly;
[0007] The backrest frame is pivotally connected to the seat cushion frame;
[0008] The five-bar linkage includes a zero-pressure adjustment component, a first zero-pressure link, a second zero-pressure link, a front height adjustment link, a rear height adjustment link, and a height adjustment component.
[0009] One end of the first zero-pressure link is connected to the height-adjusting rear link, and the other end is connected to one end of the second zero-pressure link. The other end of the second zero-pressure link is connected to one end of the height-adjusting front link, and the other end of the height-adjusting front link is connected to the seat cushion frame.
[0010] One end of the height adjustment linkage is connected to the seat cushion frame, and the other end is connected to the first zero-pressure linkage.
[0011] One end of the height adjustment component is connected to the height adjustment rear linkage, and the other end is connected to the front end of the seat cushion frame. The height adjustment component can drive the height adjustment rear linkage to rotate relative to the first zero-pressure linkage.
[0012] The zero-pressure adjustment component is mounted on the first zero-pressure connecting rod and is connected to the height adjustment front connecting rod. The zero-pressure adjustment component can drive the height adjustment front connecting rod to rotate.
[0013] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the aforementioned zero-pressure regulating component includes a zero-pressure regulating motor and a drive gear;
[0014] The zero-pressure regulating motor is installed on the inner side of the first zero-pressure connecting rod;
[0015] The zero-pressure regulating motor and the drive gear are connected by a transmission, and the drive gear is connected to the second zero-pressure connecting rod.
[0016] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the second zero-pressure connecting rod is provided with a driven rack for adapting to the drive gear.
[0017] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the driven rack is arc-shaped.
[0018] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the first zero-pressure connecting rod is provided with a first through hole for the drive gear to pass through.
[0019] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the first zero-pressure connecting rod is provided with a mounting base for mounting the zero-pressure regulating motor.
[0020] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the aforementioned zero-pressure adjusting component further includes a motor cover plate, one end of which is pivotally connected to the first zero-pressure connecting rod, the middle part of which is pivotally connected to the height adjusting front connecting rod, and the other end of which is pivotally connected to the drive gear.
[0021] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the height adjustment member is an electric push rod.
[0022] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein a backrest drive member is provided between the backrest frame and the seat cushion frame.
[0023] Secondly, this utility model embodiment provides an automobile seat, including the zero-gravity seat frame.
[0024] Beneficial effects:
[0025] This utility model provides a zero-gravity seat frame, including a seat cushion frame, a backrest frame, and a five-bar linkage assembly. The backrest frame is pivotally connected to the seat cushion frame. The five-bar linkage assembly includes a zero-pressure adjustment component, a first zero-pressure link, a second zero-pressure link, a front height adjustment link, a rear height adjustment link, and a height adjustment component. One end of the first zero-pressure link is connected to the rear height adjustment link, and the other end is connected to one end of the second zero-pressure link. The other end of the second zero-pressure link is connected to one end of the front height adjustment link, and the other end of the front height adjustment link is connected to the seat cushion frame. One end of the rear height adjustment link is connected to the seat cushion frame, and the other end is connected to the first zero-pressure link. One end of the height adjustment component is connected to the rear height adjustment link, and the other end is connected to the front end of the seat cushion frame. The height adjustment component can drive the rear height adjustment link to rotate relative to the first zero-pressure link. The zero-pressure adjustment component is disposed on the first zero-pressure link and connected to the front height adjustment link. The zero-pressure adjustment component can drive the front height adjustment link to rotate.
[0026] Specifically, when the user adjusts the zero-gravity seat, the zero-pressure adjustment component and the height adjustment component work simultaneously. The zero-pressure adjustment component and the height adjustment component can drive the first zero-pressure linkage, the second zero-pressure linkage, the front height adjustment linkage, and the rear height adjustment linkage to move in coordination with the seat cushion frame, thereby forming a five-link structure, realizing the seat cushion frame's large-angle adjustment of the seat cushion tilt angle and height adjustment functions.
[0027] This utility model provides a car seat, including a zero-gravity seat frame. The car seat has the advantages described above compared to existing technologies, which will not be elaborated further here. Attached Figure Description
[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the zero-gravity seat frame before adjustment, provided in an embodiment of the present invention.
[0030] Figure 2 This is a schematic diagram of the adjusted zero-gravity seat frame provided in an embodiment of the present invention.
[0031] Figure 3 A perspective view of the zero-gravity seat frame after adjustment, provided in an embodiment of this utility model;
[0032] Figure 4 A schematic diagram of the adjusted drive gear and second zero-pressure connecting rod of the zero-gravity seat frame provided in this embodiment of the present invention.
[0033] icon:
[0034] 100 - Seat cushion frame;
[0035] 200 – Backrest frame; 210 – Backrest drive component;
[0036] 300 – Five-bar linkage assembly; 310 – Zero-pressure adjustment component; 311 – Zero-pressure adjustment motor; 312 – Drive gear; 313 – Motor cover plate; 320 – First zero-pressure linkage; 330 – Second zero-pressure linkage; 331 – Driven rack; 340 – Front linkage for height adjustment; 350 – Rear linkage for height adjustment; 360 – Height adjustment component. Detailed Implementation
[0037] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 this utility model.
[0039] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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 utility model according to the specific circumstances.
[0041] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.
[0042] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment provides a zero-gravity seat frame, including a seat cushion frame 100, a backrest frame 200, and a five-bar linkage assembly 300; the backrest frame 200 is pivotally connected to the seat cushion frame 100; the five-bar linkage assembly 300 includes a zero-pressure adjustment component 310, a first zero-pressure link 320, a second zero-pressure link 330, a height-adjusting front link 340, a height-adjusting rear link 350, and a height-adjusting component 360. One end of the first zero-pressure link 320 is connected to the height-adjusting rear link 350, and the other end is connected to one end of the second zero-pressure link 330. The other end of the second zero-pressure link 330 is connected to one end of the height-adjusting front link 340. The other end of the height adjustment front linkage 340 is connected to the seat cushion frame 100; one end of the height adjustment rear linkage 350 is connected to the seat cushion frame 100, and the other end is connected to the first zero-pressure linkage 320; one end of the height adjustment component 360 is connected to the height adjustment rear linkage 350, and the other end is connected to the front end of the seat cushion frame 100. The height adjustment component 360 can drive the height adjustment rear linkage 350 to rotate relative to the first zero-pressure linkage 320; the zero-pressure adjustment component 310 is disposed on the first zero-pressure linkage 320, and the zero-pressure adjustment component 310 is connected to the height adjustment front linkage 340. The zero-pressure adjustment component 310 can drive the height adjustment front linkage 340 to rotate.
[0043] Specifically, when the user adjusts the zero-gravity seat, the zero-pressure adjustment component 310 and the height adjustment component 360 work simultaneously. The zero-pressure adjustment component 310 and the height adjustment component 360 can drive the first zero-pressure linkage 320, the second zero-pressure linkage 330, the front height adjustment linkage 340, and the rear height adjustment linkage 350 to move in coordination with the seat cushion frame 100, thereby forming a five-bar linkage structure, realizing the seat cushion frame's large-angle adjustment of the seat cushion tilt angle and height adjustment functions.
[0044] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in an optional embodiment, the zero-pressure regulating component 310 includes a zero-pressure regulating motor 311 and a drive gear 312; the zero-pressure regulating motor 311 is installed inside the first zero-pressure connecting rod 320; the zero-pressure regulating motor 311 and the drive gear 312 are connected in a transmission connection, and the drive gear 312 is connected to the second zero-pressure connecting rod 330.
[0045] The second zero-pressure connecting rod 330 is provided with a driven rack 331 for matching with the drive gear 312.
[0046] Among them, the driven rack 331 is arc-shaped.
[0047] The first zero-pressure connecting rod 320 has a first through hole through which the drive gear 312 passes.
[0048] The first zero-pressure connecting rod 320 is provided with a mounting base for mounting the zero-pressure regulating motor 311.
[0049] The zero-pressure adjusting component 310 also includes a motor cover plate 313. One end of the motor cover plate 313 is pivotally connected to the first zero-pressure connecting rod 320, the middle part of the motor cover plate 313 is pivotally connected to the height adjusting front connecting rod 340, and the other end of the motor cover plate 313 is pivotally connected to the drive gear 312.
[0050] The height adjustment component 360 uses an electric push rod.
[0051] Specifically, the zero-pressure regulating motor 311 drives the second zero-pressure connecting rod 330 through gear transmission. The gear and rack structure has high transmission efficiency, which improves the load capacity of the five-link zero-pressure frame. Moreover, the gear and rack structure has high locking strength, which can meet the requirements of high-energy rear impacts and improve the impact resistance of the five-link zero-pressure frame.
[0052] In addition, the zero-pressure regulating motor 311 and the second zero-pressure connecting rod 330 are connected by a gear and rack structure. The gear and rack structure has a small meshing clearance, which improves the stability of the five-link zero-pressure connection.
[0053] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in an optional embodiment, a backrest drive member 210 is provided between the backrest frame 200 and the seat cushion frame 100.
[0054] Specifically, the backrest drive component 210 can be a motor, which can adjust the relative angle between the backrest frame 200 and the seat cushion frame 100.
[0055] This embodiment provides a car seat, including a zero-gravity seat frame.
[0056] Specifically, the car seat provided in this embodiment has the advantages of the aforementioned zero-gravity seat frame compared to the prior art, which will not be elaborated here.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A zero-gravity seat frame, characterized in that, include: Seat cushion frame (100), backrest frame (200), and five-bar linkage assembly (300); The backrest frame (200) is pivotally connected to the seat cushion frame (100); The five-bar linkage (300) includes a zero-pressure adjustment component (310), a first zero-pressure link (320), a second zero-pressure link (330), a height adjustment front link (340), a height adjustment rear link (350), and a height adjustment component (360). One end of the first zero-pressure link (320) is connected to the height-adjusting rear link (350), and the other end is connected to one end of the second zero-pressure link (330). The other end of the second zero-pressure link (330) is connected to one end of the height-adjusting front link (340), and the other end of the height-adjusting front link (340) is connected to the seat cushion frame (100). One end of the height-adjustable connecting rod (350) is connected to the seat cushion frame (100), and the other end is connected to the first zero-pressure connecting rod (320); One end of the height adjustment component (360) is connected to the height adjustment rear link (350), and the other end is connected to the front end of the seat cushion frame (100). The height adjustment component (360) can drive the height adjustment rear link (350) to rotate relative to the first zero pressure link (320). The zero-pressure adjustment component (310) is disposed on the first zero-pressure connecting rod (320), and the zero-pressure adjustment component (310) is connected to the height adjustment front connecting rod (340). The zero-pressure adjustment component (310) can drive the height adjustment front connecting rod (340) to rotate.
2. The zero-gravity seat frame according to claim 1, characterized in that, The zero-pressure regulating component (310) includes a zero-pressure regulating motor (311) and a drive gear (312); The zero-pressure regulating motor (311) is installed on the inner side of the first zero-pressure connecting rod (320); The zero-pressure regulating motor (311) and the drive gear (312) are connected by a transmission, and the drive gear (312) is connected to the second zero-pressure connecting rod (330).
3. The zero-gravity seat frame according to claim 2, characterized in that, The second zero-pressure link (330) is provided with a driven rack (331) for matching with the drive gear (312).
4. The zero-gravity seat frame according to claim 3, characterized in that, The driven rack (331) is arc-shaped.
5. The zero-gravity seat frame according to claim 2, characterized in that, The first zero-pressure connecting rod (320) has a first through hole through which the drive gear (312) passes.
6. The zero-gravity seat frame according to claim 5, characterized in that, The first zero-pressure connecting rod (320) is provided with a mounting base for mounting the zero-pressure regulating motor (311).
7. The zero-gravity seat frame according to claim 2, characterized in that, The zero-pressure adjusting component (310) also includes a motor cover plate (313), one end of which is pivotally connected to the first zero-pressure connecting rod (320), the middle part of which is pivotally connected to the height adjusting front connecting rod (340), and the other end of which is pivotally connected to the drive gear (312).
8. The zero-gravity seat frame according to any one of claims 1-7, characterized in that, The height adjustment component (360) is an electric push rod.
9. The zero-gravity seat frame according to any one of claims 1-7, characterized in that, A backrest drive unit (210) is provided between the backrest frame (200) and the seat cushion frame (100).
10. A car seat, characterized in that, Includes the zero-gravity seat frame as described in any one of claims 1-9.