Headrest overturning structure with self-locking function and automobile seat
By introducing a design that includes mounting brackets, headrest brackets, and drive components into the car seat, the interference problem of the headrest when the seat is folded flat into a bed is solved, enabling stable rotation of the headrest and improving the passenger experience.
Patent Information
- Application Number
- CN202423240764.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, the headrest interferes with the vehicle body when the seat is folded flat into a bed, resulting in high requirements for structural strength and significant movement gaps, which affects the passenger experience.
The design incorporates a mounting bracket, a headrest bracket, and a drive mechanism (including a power source, a transmission screw, a self-locking drive linkage, and a support transmission linkage). The headrest is stabilized during normal use by maintaining the horizontal position of the self-locking drive linkage and the support transmission linkage. The headrest is flipped by using the power source to drive the transmission screw to raise and lower.
The stability of the headrest has been improved, the strength requirements of the mechanism have been reduced, the movement gaps have been decreased, and the passenger's user experience has been enhanced.
Smart Images
Figure CN223508143U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat technology, and more specifically, to a headrest flipping structure with self-locking function 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 vehicle body, requiring a mechanism to rotate the headrests 90° and hide them under the seat back. This mechanism is located inside the seat back, and its structural arrangement needs to be as compact as possible. Since the gaps in this mechanism are magnified in the headrest and perceived by passengers, high standards are required for its gap performance.
[0003] However, in existing technologies, headrests are generally locked by the structure of the drive motor itself. Because the headrest has a large lever relative to the mechanism, the mechanism is subjected to a large force in the static strength test of the backrest, requiring very high strength from the mechanism itself. Furthermore, due to the inherent movement clearance of the drive motor, this clearance is amplified and becomes more noticeable in the headrest by the lever. Utility Model Content
[0004] The purpose of this invention is to provide a headrest flipping structure with self-locking function and a car seat to alleviate the technical problem of unstable headrests in the prior art.
[0005] In a first aspect, this utility model embodiment provides a headrest flipping structure with a self-locking function, including a mounting and fixing bracket, a headrest bracket and a driving component;
[0006] The mounting bracket can be installed on the seat back, one end of the headrest bracket is pivotally connected to the mounting bracket, and the other end of the headrest bracket can be connected to the headrest;
[0007] The driving component includes a power source, a transmission screw, a self-locking drive linkage, and a support transmission linkage. The power source is rotatably mounted on the mounting bracket, and the transmission screw is connected to the power source in a transmission manner.
[0008] One end of the self-locking drive linkage is pivotally connected to the transmission lead screw, and the other end is pivotally connected to the headrest bracket; one end of the support transmission linkage is pivotally connected to the transmission lead screw, and the other end is pivotally connected to the mounting and fixing bracket.
[0009] When the headrest bracket is in its initial position, both the self-locking drive link and the support transmission link are in a horizontal state.
[0010] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the headrest flipping structure with self-locking function further includes a mounting base, the mounting base being fixedly mounted on the mounting bracket, and the mounting base having a mounting groove for mounting the power source.
[0011] 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 swing clearance hole for the transmission lead screw to pass through, and the swing clearance hole is connected to the mounting groove.
[0012] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the mounting groove includes a receiving groove for adapting to the power source and a limiting groove for limiting the rotation angle of the power source, and the receiving groove and the limiting groove are interconnected.
[0013] 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 limiting ring, and the power source is provided with a limiting boss adapted to the limiting ring.
[0014] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the output end of the power source has a connecting sleeve, a lead screw nut is provided inside the connecting sleeve, and the lead screw nut is connected to the gear transmission of the output end of the power source.
[0015] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the aforementioned limiting boss is disposed on the connecting sleeve.
[0016] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein both the aforementioned mounting bracket and the headrest bracket are provided with pivot seats.
[0017] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the power source is a drive motor.
[0018] Secondly, this utility model embodiment provides an automobile seat, including the headrest flip structure with self-locking function.
[0019] Beneficial effects:
[0020] This utility model provides a headrest flipping structure with a self-locking function, including a mounting bracket, a headrest bracket, and a driving component. The mounting bracket can be installed on the seat back, one end of the headrest bracket is pivotally connected to the mounting bracket, and the other end of the headrest bracket can be connected to the headrest. The driving component includes a power source, a transmission screw, a self-locking drive linkage, and a supporting transmission linkage. The power source is rotatably mounted on the mounting bracket, and the transmission screw is connected to the power source. One end of the self-locking drive linkage is pivotally connected to the transmission screw, and the other end is pivotally connected to the headrest bracket. One end of the supporting transmission linkage is pivotally connected to the transmission screw, and the other end is pivotally connected to the mounting bracket. When the headrest bracket is in its initial position, both the self-locking drive linkage and the supporting transmission linkage are in a horizontal state.
[0021] Specifically, in actual use, when the headrest on the headrest bracket is in its normal state, i.e., the seat is not reclined, and the user's head can rest on the headrest, both the self-locking drive linkage and the support transmission linkage are in a horizontal state. Therefore, when the user's head applies pressure to the headrest, the force of the headrest on the self-locking drive linkage and the support transmission linkage is horizontal, and thus cannot drive the self-locking drive linkage and the support transmission linkage to rotate, making the headrest stable and not wobbling. When the user reclines the seat, the user can control the drive mechanism through the control button. The power source of the drive mechanism drives the transmission screw to rise and fall. At this time, the transmission screw falls, causing the self-locking drive linkage and the support transmission linkage to swing, thereby driving the headrest bracket to rotate, thus completing the folding of the headrest.
[0022] This invention provides a car seat, including a headrest flipping structure with a self-locking function. The car seat has the advantages described above compared to existing technologies, which will not be elaborated further here. Attached Figure Description
[0023] 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.
[0024] Figure 1 A schematic diagram of the self-locking headrest flipping structure provided in this embodiment of the utility model during use;
[0025] Figure 2 A schematic diagram of the self-locking headrest flipping structure provided in this embodiment of the utility model;
[0026] Figure 3A schematic diagram of a headrest flipping structure with self-locking function provided in an embodiment of this utility model;
[0027] Figure 4 A partial schematic diagram of a headrest flipping structure with self-locking function provided in an embodiment of this utility model;
[0028] Figure 5 A schematic diagram showing the installation of a fixing bracket and a headrest bracket in a headrest flipping structure with a self-locking function provided in an embodiment of this utility model;
[0029] Figure 6 A schematic diagram of the power source and mounting base in the headrest flipping structure with self-locking function provided in this embodiment of the utility model;
[0030] Figure 7 A schematic diagram of the power source in the headrest flipping structure with self-locking function provided in this embodiment of the utility model;
[0031] Figure 8 This is a schematic diagram of the mounting base in the headrest flipping structure with self-locking function provided in an embodiment of the present utility model.
[0032] icon:
[0033] 10 - Headrest;
[0034] 100 - Install the mounting bracket;
[0035] 200 - Headrest support;
[0036] 300 – Driving component; 310 – Power source; 311 – Limiting boss; 312 – Connecting sleeve; 320 – Transmission screw; 330 – Self-locking drive linkage; 340 – Support transmission linkage;
[0037] 400 - Mounting base; 410 - Mounting groove; 411 - Receiving groove; 412 - Limiting groove; 420 - Swing clearance hole; 430 - Limiting retaining ring. Detailed Implementation
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.
[0043] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, this embodiment provides a headrest flipping structure with a self-locking function, including a mounting bracket 100, a headrest bracket 200, and a driving component 300; the mounting bracket 100 can be mounted on the seat back, one end of the headrest bracket 200 is pivotally connected to the mounting bracket 100, and the other end of the headrest bracket 200 can be connected to the headrest 10; the driving component 300 includes a power source 310, a transmission screw 320, a self-locking drive linkage 330, and a support transmission linkage 340. The power source 310 is rotatably mounted on the mounting bracket 100, and the transmission screw 320 is connected to the power source 310. One end of the self-locking drive link 330 is pivotally connected to the transmission screw 320, and the other end is pivotally connected to the headrest bracket 200. One end of the support transmission link 340 is pivotally connected to the transmission screw 320, and the other end is pivotally connected to the mounting bracket 100. When the headrest bracket 200 is in the initial position, both the self-locking drive link 330 and the support transmission link 340 are in a horizontal state.
[0044] Specifically, in actual use, when the headrest 10 on the headrest bracket 200 is in its normal state, i.e., the seat is not reclined, the user's head can rest on the headrest 10. At this time, both the self-locking drive linkage 330 and the support transmission linkage 340 are in a horizontal state. Therefore, when the user's head applies pressure to the headrest 10, the force of the headrest 10 on the self-locking drive linkage 330 and the support transmission linkage 340 is in a horizontal state, so it cannot drive the self-locking drive linkage 330 and the support transmission linkage 340 to rotate, thus making the headrest 10 stable and not wobbling. When the user reclines the seat, the user can control the drive component 300 to work through the control button. The power source 310 of the drive component 300 drives the transmission screw 320 to rise and fall. At this time, the transmission screw 320 descends, and the descending transmission screw drives the self-locking drive linkage 330 and the support transmission linkage 340 to swing, thereby driving the headrest bracket 200 to rotate, thus completing the folding of the headrest 10.
[0045] The power source 310 of the drive component 300 is rotatably mounted on the mounting bracket 100. Therefore, when the power source 310 drives the self-locking drive link 330 and the support drive link 340 to move through the transmission screw 320, the swing of the self-locking drive link 330 and the support drive link 340 can drive the transmission screw 320 to swing, thereby causing the transmission screw 320 to drive the power source 310 to rotate relative to the mounting bracket 100.
[0046] Both the mounting bracket 100 and the headrest bracket 200 are equipped with pivot seats. The pivot seats enable the mounting bracket 100 to be pivotally connected to the support transmission link 340, and enable the headrest bracket 200 to be pivotally connected to the self-locking drive link 330.
[0047] In addition, by supporting the transmission link 340, when the user leans against the headrest 10, the thrust on the headrest 10 can be borne by both the mounting bracket 100 and the headrest bracket 200, reducing the burden on the headrest bracket 200.
[0048] The power source 310 is a drive motor. Furthermore, those skilled in the art can choose the type of power source 310 according to actual needs, which will not be elaborated upon here.
[0049] See Figure 1 - Figure 8 As shown, in the optional embodiment, the headrest flipping structure with self-locking function also includes a mounting base 400. The mounting base 400 is fixedly mounted on the mounting bracket 100, and the mounting base 400 has a mounting groove 410 for mounting the power source 310.
[0050] The mounting base 400 has a swing clearance hole 420 through which the transmission screw 320 passes, and the swing clearance hole 420 is connected to the mounting groove 410.
[0051] Specifically, a mounting base 400 is fixedly installed on the mounting bracket 100, and a power source 310 is installed on the mounting base 400. The power source 310 can rotate within the mounting groove 410 of the mounting base 400, thereby allowing the power source 310 to adapt to the swing of both the self-locking drive link 330 and the support transmission link 340. At the same time, a swing clearance hole 420 is provided on the mounting base 400, and the transmission screw 320 is inserted into the swing clearance hole 420. Through the setting of the swing clearance hole 420, the mounting base 400 does not restrict the swing of the transmission screw 320.
[0052] See Figure 1 - Figure 8 As shown, in an optional embodiment, the mounting groove 410 includes a receiving groove 411 for adapting to the power source 310 and a limiting groove 412 for limiting the rotation angle of the power source 310. The receiving groove 411 and the limiting groove 412 are interconnected.
[0053] Specifically, the mounting groove 410 includes a receiving groove 411 and a limiting groove 412, which are interconnected. A portion of the power source 310 can be inserted into the receiving groove 411, and the power source 310 is provided with a limiting protrusion that is adapted to the limiting groove 412. Thus, when the power source 310 rotates, the limiting protrusion on the power source 310 can swing within the limiting groove 412, thereby limiting the rotation range of the power source 310.
[0054] In addition, a limit ring 430 is provided on the mounting base 400, and a limit boss 311 adapted to the limit ring 430 is provided on the power source 310. With the limit ring 430 and the limit boss 311, the power source 310 can be inserted into the mounting base 400 to one side. Then, when the mounting base 400 is fixedly installed on the mounting bracket 100, the limit boss 311 is constrained between the limit ring 430 of the mounting base 400 and the mounting bracket 100, so that the power source 310 can be stably installed between the mounting base 400 and the mounting bracket 100, and the power source 310 can rotate relative to the mounting base 400.
[0055] See Figure 1 - Figure 8 As shown, in an optional embodiment, the output end of the power source 310 has a connecting sleeve 312, and a lead screw nut is provided inside the connecting sleeve 312. The lead screw nut is connected to the gear transmission of the output end of the power source 310.
[0056] Specifically, the output end of the power source 310 has a connecting sleeve 312, which is a component on the power source 310. This allows the power output by the power source 310 to be transmitted to the transmission screw 320 through the gear at its output end and the screw nut inside the connecting sleeve 312, so that the transmission screw 320 can rotate.
[0057] The limiting boss 311 is provided on the connecting sleeve 312.
[0058] This embodiment provides a car seat, including a headrest flip structure with a self-locking function.
[0059] Specifically, the car seat provided in this embodiment has the advantages of the aforementioned headrest flip structure with self-locking function compared with the prior art, which will not be elaborated here.
[0060] 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 with a self-locking function, characterized in that, include: Mounting bracket (100), headrest bracket (200) and drive unit (300); The mounting bracket (100) can be installed on the seat back, one end of the headrest bracket (200) is pivotally connected to the mounting bracket (100), and the other end of the headrest bracket (200) can be connected to the headrest (10); The driving component (300) includes a power source (310), a transmission screw (320), a self-locking drive link (330), and a support transmission link (340). The power source (310) is rotatably mounted on the mounting bracket (100), and the transmission screw (320) is connected to the power source (310) in a transmission manner. One end of the self-locking drive link (330) is pivotally connected to the transmission screw (320), and the other end is pivotally connected to the headrest bracket (200); one end of the support transmission link (340) is pivotally connected to the transmission screw (320), and the other end is pivotally connected to the mounting and fixing bracket (100); When the headrest bracket (200) is in its initial position, both the self-locking drive link (330) and the support transmission link (340) are in a horizontal state.
2. The headrest flipping structure with self-locking function according to claim 1, characterized in that, It also includes a mounting base (400), which is fixedly mounted on the mounting bracket (100), and the mounting base (400) has a mounting groove (410) for mounting the power source (310).
3. The headrest flipping structure with self-locking function according to claim 2, characterized in that, The mounting base (400) has a swing clearance hole (420) through which the transmission screw (320) passes, and the swing clearance hole (420) is connected to the mounting groove (410).
4. The headrest flipping structure with self-locking function according to claim 2, characterized in that, The mounting slot (410) includes a receiving slot (411) for adapting to the power source (310) and a limiting slot (412) for limiting the rotation angle of the power source (310), and the receiving slot (411) and the limiting slot (412) are interconnected.
5. The headrest flipping structure with self-locking function according to claim 4, characterized in that, The mounting base (400) is provided with a limit ring (430), and the power source (310) is provided with a limit boss (311) that is adapted to the limit ring (430).
6. The headrest flipping structure with self-locking function according to claim 5, characterized in that, The power source (310) has a connecting sleeve (312) at its output end, and a lead screw nut is provided inside the connecting sleeve (312). The lead screw nut is connected to the gear at the output end of the power source (310) via a transmission.
7. The headrest flipping structure with self-locking function according to claim 6, characterized in that, The limiting boss (311) is disposed on the connecting sleeve (312).
8. The headrest flipping structure with self-locking function according to any one of claims 1-7, characterized in that, Both the mounting bracket (100) and the headrest bracket (200) are provided with pivot seats.
9. The headrest flipping structure with self-locking function according to any one of claims 1-7, characterized in that, The power source (310) is a drive motor.
10. A car seat, characterized in that, The headrest flipping structure with self-locking function as described in any one of claims 1-9.