Headrest overturning structure and automobile seat

Abstract

The utility model provides a headrest overturning structure and an automobile seat, and relates to the technical field of automobile seat equipment. The headrest overturning structure comprises a mounting base, an angle adjuster, a headrest driving piece, a rotating synchronizing shaft and a headrest connecting piece; the headrest driving part is fixedly arranged on the mounting base, the mounting base can be mounted on a seat backrest framework, angle adjusters are arranged at the two ends of the mounting base, and the headrest driving part is in transmission connection with the angle adjusters through a rotating synchronizing shaft; and the headrest connecting piece is arranged on the angle adjuster. The automobile seat comprises the headrest overturning structure. The technical effect of reducing the shaking gap of the headrest is achieved.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat equipment technology, and more specifically, to a headrest flipping structure and an automotive seat. Background Technology

[0002] In the current automotive market, the demand for seats that can be folded flat into a bed is becoming increasingly common. When the second-row seats are folded back, the headrests interfere with the car body, requiring a mechanism to rotate the headrests 90-180 degrees to hide them under the backrest.

[0003] This mechanism is located inside the seat back, and its structural layout needs to be as compact as possible. Since the gaps in this mechanism are amplified on the headrest and perceived by the passenger, its gap performance is crucial. Existing headrests rely on the drive motor's own locking mechanism. Because the headrest has a large leverage relative to the mechanism, the mechanism experiences significant stress during static strength tests on the seat back, requiring very high strength from the mechanism itself. Furthermore, due to the inherent play in the drive motor, this play is amplified on the headrest by the leverage effect, making it even more noticeable. Utility Model Content

[0004] The purpose of this invention is to provide a headrest flipping structure and a car seat to alleviate the technical problem of large headrest wobbling gap in the prior art.

[0005] In a first aspect, the present invention provides a headrest flipping structure, including a mounting base, an angle adjuster, a headrest drive component, a rotating synchronous shaft, and a headrest connector;

[0006] The headrest drive component is fixedly mounted on the mounting base, which can be mounted on the seat back frame. The mounting base has an adjuster at both ends, and the headrest drive component is connected to the adjuster via the rotating synchronous shaft.

[0007] The headrest connector is mounted on the angle adjuster.

[0008] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the mounting base is provided with a drive mounting bracket for mounting the headrest drive component.

[0009] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the headrest driving component includes a drive motor and a reducer, the drive motor is disposed on the drive mounting bracket, the reducer is disposed on the drive motor, and the reducer is drively connected to the rotating synchronous shaft.

[0010] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the aforementioned angle adjuster is fixedly mounted on the mounting base, and the rotating part of the angle adjuster is provided with an angle adjuster adapter cover;

[0011] The headrest connector is connected to the angle adjuster adapter cover.

[0012] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the headrest connector includes a headrest mounting bracket and a transmission sleeve;

[0013] The transmission sleeve is loosely fitted on the rotating synchronous shaft, and both ends of the transmission sleeve are connected to the angle adjuster adapter cover;

[0014] The headrest mounting bracket is mounted on the transmission sleeve.

[0015] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein a seat headrest is provided at the end of the headrest mounting bracket away from the transmission sleeve.

[0016] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the aforementioned angle adjuster adapter cover is provided with a rotation limiting rod;

[0017] The mounting base is provided with two rotation limit stops for limiting the rotation range of the rotation limit rod.

[0018] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the mounting base is provided with a connecting nut for connecting with the seat back frame.

[0019] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the aforementioned rotary synchronous shaft is a spline shaft.

[0020] Secondly, this utility model embodiment provides a car seat, including the headrest flipping structure.

[0021] Beneficial effects:

[0022] This utility model provides a headrest flipping structure, including a mounting base, an adjuster, a headrest drive component, a rotating synchronous shaft, and a headrest connector. The headrest drive component is fixedly mounted on the mounting base, which can be mounted on the seat back frame. Adjusters are provided at both ends of the mounting base, and the headrest drive component is connected to the adjuster via the rotating synchronous shaft. The headrest connector is mounted on the adjuster.

[0023] Specifically, during use, the user controls the start and stop of the headrest drive component via the control buttons on the car seat or center console, thereby controlling the operation of the headrest adjuster. The operation of the headrest adjuster can drive the rotating synchronous shaft to rotate, which in turn can drive the headrest connector to swing, thereby causing the seat headrest located on the headrest connector to swing, thus achieving a large-angle rotation of the seat headrest. Furthermore, the headrest adjuster itself has high locking strength and small locking gap, which makes the seat headrest structure strong and the small gap during use prevents it from shaking.

[0024] This utility model provides a car seat, including a headrest flipping structure. The car seat has the advantages described above compared to the prior art, which will not be elaborated further here. Attached Figure Description

[0025] 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.

[0026] Figure 1 A schematic diagram showing the headrest flipping structure installed on the seat back frame according to an embodiment of this utility model;

[0027] Figure 2 A schematic diagram showing the headrest not flipped in the headrest flipping structure provided in this embodiment of the utility model;

[0028] Figure 3 A schematic diagram showing the maximum angle at which the headrest of the seat is not flipped in the headrest flipping structure provided in this embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the headrest flipping structure provided in an embodiment of the present utility model;

[0030] Figure 5 A cross-sectional view of the headrest flipping structure provided in an embodiment of this utility model.

[0031] icon:

[0032] 100 – Mounting base; 110 – Drive mounting bracket; 120 – Rotation limit stop; 130 – Connecting nut;

[0033] 200 - Angle adjuster; 210 - Angle adjuster adapter cover; 211 - Rotary limit rod;

[0034] 300 – Headrest drive unit; 310 – Drive motor; 320 – Reducer;

[0035] 400 - Rotary synchronous shaft;

[0036] 500 - Headrest connector; 510 - Headrest mounting bracket; 520 - Transmission sleeve;

[0037] 600 - Seat back frame;

[0038] 700 - Seat headrest. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0044] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment provides a headrest flipping structure, including a mounting base 100, an adjuster 200, a headrest drive component 300, a rotating synchronous shaft 400, and a headrest connector 500. The headrest drive component 300 is fixedly mounted on the mounting base 100, which can be mounted on the seat back frame 600. Adjusters 200 are provided at both ends of the mounting base 100, and the headrest drive component 300 is connected to the adjuster 200 via the rotating synchronous shaft 400. The headrest connector 500 is mounted on the adjuster 200.

[0045] Specifically, during use, the user controls the start and stop of the headrest drive component 300 via the control button on the car seat or center console, thereby controlling the operation of the adjuster 200. The operation of the adjuster 200 can drive the rotating synchronous shaft 400 to rotate, which in turn can drive the headrest connector 500 to swing, thereby causing the seat headrest 700 located on the headrest connector 500 to swing, thus achieving a large-angle rotation of the seat headrest 700. Furthermore, the adjuster 200 itself has high locking strength and small locking gap, which makes the seat headrest 700 structurally strong and prevents it from shaking during use due to its small gap.

[0046] The fixing part of the angle adjuster 200 is welded to the mounting base 100. The two ends of the rotating synchronous shaft 400 are respectively inserted into different angle adjusters 200. The rotating synchronous shaft 400 is connected to the headrest drive component 300 for transmission. The headrest drive component 300 can drive the rotating synchronous shaft 400 to rotate.

[0047] It should be noted that the mounting base 100 is provided with a connecting nut 130 for connecting with the seat back frame 600. The connecting nut 130 is welded to the mounting base 100, and the mounting base 100 can be fixed to the seat back frame 600 by bolts and the connecting nut 130.

[0048] It should be noted that the rotary synchronous shaft 400 can be a spline shaft.

[0049] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in an optional embodiment, the mounting base 100 is provided with a drive mounting bracket 110 for mounting the headrest drive component 300. The headrest drive component 300 includes a drive motor 310 and a reducer 320. The drive motor 310 is mounted on the drive mounting bracket 110, and the reducer 320 is mounted on the drive motor 310. The reducer 320 is connected to the rotating synchronous shaft 400 for transmission.

[0050] Specifically, a drive mounting bracket 110 is provided on the mounting base 100, and the drive motor 310 is mounted on the drive mounting bracket 110 to ensure the stability of the headrest drive component 300 and enable the headrest drive component 300 to work stably.

[0051] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in the optional embodiment, the angle adjuster 200 is fixedly mounted on the mounting base 100, and the rotating part of the angle adjuster 200 is provided with an angle adjuster adapter cover 210; the headrest connector 500 is connected to the angle adjuster adapter cover 210.

[0052] The headrest connector 500 includes a headrest mounting bracket 510 and a transmission sleeve 520; the transmission sleeve 520 is loosely fitted on the rotating synchronous shaft 400, and both ends of the transmission sleeve 520 are connected to an angle adjuster adapter cover 210; the headrest mounting bracket 510 is mounted on the transmission sleeve 520.

[0053] The headrest mounting bracket 510 is provided with a seat headrest 700 at the end away from the transmission sleeve 520.

[0054] Specifically, the rotating part of the adjuster 200 is provided with an adjuster adapter cover 210, and both ends of the transmission sleeve 520 of the headrest connector 500 are fixedly connected with the adjuster adapter cover 210. Therefore, when the rotating synchronous shaft 400 drives the two adjusters 200 to rotate, the adjuster adapter cover 210 can drive the transmission sleeve 520 of the headrest connector 500 to rotate, thereby causing the seat headrest 700 set on the headrest mounting bracket 510 to flip.

[0055] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in the optional embodiment, the angle adjuster adapter cover 210 is provided with a rotation limit rod 211; the mounting base 100 is provided with two rotation limit stops 120 for limiting the rotation range of the rotation limit rod 211.

[0056] Specifically, a rotation limit rod 211 is provided on the angle adjuster adapter cover 210, and two rotation limit stops 120 are provided on the mounting base 100. When the angle adjuster adapter cover 210 rotates, the rotation limit rod 211 on the angle adjuster adapter cover 210 can abut against the rotation limit stops 120, thereby limiting the maximum rotation range of the angle adjuster adapter cover 210, thereby limiting the flip angle of the seat headrest 700.

[0057] This embodiment provides a car seat, including a headrest flipping structure.

[0058] Specifically, the car seat provided in this embodiment has the advantages of the aforementioned headrest flip structure compared to the prior art, which will not be elaborated here.

[0059] 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 headrest flipping structure, characterized in that, include: Mounting base (100), angle adjuster (200), headrest drive (300), rotary synchronous shaft (400) and headrest connector (500); The headrest drive component (300) is fixedly mounted on the mounting base (100), and the mounting base (100) can be mounted on the seat back frame (600). The mounting base (100) is provided with the angle adjuster (200) at both ends. The headrest drive component (300) is connected to the angle adjuster (200) through the rotating synchronous shaft (400). The headrest connector (500) is disposed on the angle adjuster (200).

2. The headrest flipping structure according to claim 1, characterized in that, The mounting base (100) is provided with a drive mounting bracket (110) for mounting the headrest drive component (300).

3. The headrest flipping structure according to claim 2, characterized in that, The headrest drive unit (300) includes a drive motor (310) and a reducer (320). The drive motor (310) is mounted on the drive mounting bracket (110), and the reducer (320) is mounted on the drive motor (310). The reducer (320) is connected to the rotating synchronous shaft (400) for transmission.

4. The headrest flipping structure according to claim 1, characterized in that, The angle adjuster (200) is fixedly mounted on the mounting base (100), and the rotating part of the angle adjuster (200) is provided with an angle adjuster adapter cover (210); The headrest connector (500) is connected to the angle adjuster adapter cover (210).

5. The headrest flipping structure according to claim 4, characterized in that, The headrest connector (500) includes a headrest mounting bracket (510) and a transmission sleeve (520); The transmission sleeve (520) is loosely fitted on the rotating synchronous shaft (400), and both ends of the transmission sleeve (520) are connected to the angle adjuster adapter cover (210); The headrest mounting bracket (510) is mounted on the transmission sleeve (520).

6. The headrest flipping structure according to claim 5, characterized in that, The headrest mounting bracket (510) is provided with a seat headrest (700) at the end away from the transmission sleeve (520).

7. The headrest flipping structure according to claim 5, characterized in that, The angle adjuster adapter cover (210) is provided with a rotation limit rod (211); The mounting base (100) is provided with two rotation limit stops (120) for limiting the rotation range of the rotation limit rod (211).

8. The headrest flipping structure according to any one of claims 1-7, characterized in that, The mounting base (100) is provided with a connecting nut (130) for connecting with the seat back frame (600).

9. The headrest flipping structure according to any one of claims 1-7, characterized in that, The rotary synchronous shaft (400) is a spline shaft.

10. A car seat, characterized in that, Includes the headrest flipping structure as described in any one of claims 1-9.

Images