An adjustable headrest structure and a car seat

Abstract

This application relates to the field of vehicle technology, and particularly to an adjustable headrest structure and an automobile seat. The adjustable headrest mechanism includes a headrest support, an adjustment drive device, and an adjustment transmission rod. The headrest support is engaged with the seat headrest, and the adjustment drive device and adjustment transmission rod are disposed within the seat back. The adjustment drive device is driven to the adjustment transmission rod, and is used to drive the adjustment transmission rod to rotate based on headrest adjustment commands. The adjustment transmission rod is driven to the headrest support, and when the adjustment transmission rod rotates, the headrest support moves axially along the adjustment transmission rod. By providing an adjustment drive device, which is driven to the adjustment transmission rod, and the adjustment transmission rod is driven to the headrest support, the headrest support moves axially along the adjustment transmission rod when the adjustment transmission rod rotates. Therefore, the user can adjust the headrest to any position via commands, thereby satisfying the user's personalized adjustment needs.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an adjustable headrest structure and a car seat. Background Technology

[0002] Seat comfort has a significant impact on users' purchasing desire, especially the comfort of car seats, which affects the overall sales of a car. Headrests are an indispensable part of car seats, but existing car seat headrests are usually manually adjustable and have limited positions, which cannot meet the personalized needs of users. Therefore, an adjustable headrest structure is proposed to solve the above problems. Summary of the Invention

[0003] To address the aforementioned problems in the prior art, the purpose of this application is to provide an adjustment drive device that is driven and connected to an adjustment transmission rod, which is then connected to a headrest support component. This allows the user to adjust the headrest to any position via commands, thereby satisfying the user's personalized adjustment needs and improving user comfort.

[0004] To address the aforementioned issues, this application provides an adjustable headrest structure, comprising a headrest support, an adjustment drive device, and an adjustment transmission rod. The headrest support is snapped into the seat headrest, and the adjustment drive device and the adjustment transmission rod are disposed within the seat back.

[0005] The adjustment drive device is driven to drive the adjustment transmission rod, and the adjustment drive device is used to drive the adjustment transmission rod to rotate based on the headrest adjustment command;

[0006] The adjusting transmission rod is connected to the headrest support member in a transmission manner. When the adjusting transmission rod rotates, the headrest support member moves along the axial direction of the adjusting transmission rod.

[0007] In one specific embodiment, the adjusting transmission rod includes an adjusting transmission part, which is connected to the headrest support member via the adjusting transmission part. The adjusting transmission part is used to limit the movement stroke of the headrest support member.

[0008] In one specific embodiment, the headrest support includes an axial transmission part, which is connected to the adjustment transmission part.

[0009] In one specific embodiment, the adjustable headrest mechanism further includes a transmission component, which is coaxially connected to the adjustment transmission rod and is drively connected to the adjustment drive device.

[0010] In one specific embodiment, the transmission component includes a helical gear.

[0011] In one specific embodiment, the adjusting transmission part includes a transmission thread, and the axial transmission part includes a transmission threaded hole that mates with the transmission thread. When the adjusting transmission rod rotates, the transmission thread rotates in the transmission threaded hole.

[0012] In one specific embodiment, the adjusting transmission part includes a transmission rotary slide groove, and the axial transmission part includes an axial transmission block that cooperates with the transmission rotary slide groove. When the adjusting transmission rod rotates, the axial transmission block slides within the transmission rotary slide groove.

[0013] In one specific embodiment, a vibration limiting device is further included, which is sleeved outside the adjusting transmission rod and is used to limit the vibration range of the adjusting transmission rod.

[0014] In one specific embodiment, the vibration limiting device is provided with several weight reduction holes.

[0015] On the other hand, this application also provides a car seat, which includes the adjustable headrest mechanism in the embodiments of this application.

[0016] Due to the above technical solution, the adjustable headrest structure described in this application has the following beneficial effects:

[0017] The adjustable headrest mechanism in this application is equipped with an adjustment drive device, which is driven by an adjustment transmission rod. The adjustment transmission rod is driven by a headrest support member. When the adjustment transmission rod rotates, the headrest support member moves along the axial direction of the adjustment transmission rod. Thus, the user can adjust the headrest to any position by command, thereby meeting the user's personalized adjustment needs and improving user comfort. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of an adjustable headrest structure provided in an embodiment of this application;

[0020] Figure 2 This is an assembly diagram of the adjusting transmission rod and transmission component in an adjustable headrest structure provided in an embodiment of this application;

[0021] Figure 3 This is an assembly diagram of the adjustment drive device and transmission component in an adjustable headrest structure provided in an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the skeleton portion in an adjustable headrest structure provided in an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the vibration limiting device in an adjustable headrest structure provided in an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the motor rotating component in an adjustable headrest structure provided in an embodiment of this application.

[0025] Among them, 1-headrest support, 11-headrest transmission part, 12-frame part, 13-axial transmission part, 2-adjustment drive device, 21-drive motor, 22-power supply harness, 3-adjustment transmission rod, 31-adjustment transmission part, 4-transmission component, 5-vibration limiting device, 51-weight reduction hole, 6-motor rotating component. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0028] Example 1

[0029] Combination Figure 1-6This application describes an adjustable headrest structure. The adjustable headrest mechanism includes a headrest support 1, an adjustment drive device 2, and an adjustment transmission rod 3. The headrest support 1 is snapped into the seat headrest, and the adjustment drive device 2 and the adjustment transmission rod 3 are disposed inside the seat back. The adjustment drive device 2 is driven to rotate the adjustment transmission rod 3 based on a headrest adjustment command. The adjustment transmission rod 3 is driven to rotate the headrest support 1. When the adjustment transmission rod 3 rotates, the headrest support 1 moves along the axial direction of the adjustment transmission rod 3. By setting the adjustment drive device 2 and driving it to rotate the headrest support 1, the headrest support 1 can move along the axial direction of the adjustment transmission rod 3 when the adjustment transmission rod 3 rotates. This allows the user to adjust the headrest to any position via commands, thereby meeting the user's personalized adjustment needs and improving user comfort.

[0030] In this embodiment, the seat back has sufficient space to accommodate the adjustment drive device 2 and adjustment transmission rod 3. By engaging the headrest support 1 with the seat headrest, and placing the adjustment drive device 2 and adjustment transmission rod 3 inside the seat back, the weight of the seat headrest is reduced, vibration during the adjustment process is avoided, and user comfort is improved.

[0031] Specifically, the headrest support 1 includes a headrest transmission part 11 and a frame part 12. The headrest transmission part 11 is connected to the adjustment transmission rod 3, and the headrest transmission part 11 is connected to the frame part 12.

[0032] Preferably, the headrest transmission part 11 can be fixedly connected to the frame part 12; the headrest transmission part 11 can also be detachably connected to the frame part 12. The frame part 12 is the main structure supporting the headrest, and different frames can produce different headrest shapes. By detachably connecting the headrest transmission part 11 to the frame part 12, personalized needs can be further met, and user satisfaction can be improved.

[0033] Specifically, the adjusting transmission rod 3 includes an adjusting transmission part 31, which is connected to the headrest support 1 via the adjusting transmission part 31. The adjusting transmission part 31 is used to limit the movement stroke of the headrest support 1.

[0034] Specifically, the adjustable transmission part 31 is a structure with a limited length set on the adjustable transmission rod 3. Within its length range, the adjustable transmission part 31 is always connected to the headrest support 1. Thus, by limiting the length of the adjustable transmission part 31, the movement stroke of the headrest support 1 can be limited. By setting the adjustable transmission part 31 to limit the movement stroke of the headrest support 1, the adjustment transmission part 31 is prevented from falling off the headrest support 1, thereby ensuring the structural stability of the headrest mechanism.

[0035] Specifically, the headrest support 1 includes an axial transmission part 13, which is connected to the adjustment transmission part 31.

[0036] Specifically, the axial rotation part is set on the headrest transmission part 11, and the axial transmission part 13 can be sleeved on the adjustment transmission part 31. The adjustment transmission part 31 rotates inside the axial transmission part 13 and drives the axial transmission part 13 to move along the axial direction of the adjustment transmission rod 3. By sleeved the axial transmission part 13 on the adjustment transmission part 31, the structural design of the headrest is simplified, thereby reducing the manufacturing cost of the headrest.

[0037] Preferably, the axially rotating part is located at the axisymmetric center of the headrest transmission part 11.

[0038] Specifically, the adjustable headrest mechanism also includes a transmission component 4, which is coaxially connected to the adjusting transmission rod 3 and is also connected to the adjusting drive device 2.

[0039] Specifically, the adjustment drive device 2 includes a drive motor 21 and a power supply harness 22.

[0040] Specifically, the adjustable headrest mechanism also includes a motor transmission component 4, a motor rotating component 6 mounted on the rotating shaft of the motor, and the motor rotating component 6 rotates coaxially with the motor; the motor rotating component 6 is connected to the transmission component 4 for transmission.

[0041] Specifically, transmission component 4 includes a helical gear.

[0042] Specifically, the adjusting transmission part 31 includes a transmission thread, and the axial transmission part 13 includes a transmission thread hole that mates with the transmission thread. When the adjusting transmission rod 3 rotates, the transmission thread rotates in the transmission thread hole. By using a thread for transmission, the complexity of the headrest mechanism is reduced, and the manufacturing cost of the headrest mechanism is reduced.

[0043] Specifically, it also includes a vibration limiting device 5, which is sleeved on the outside of the adjusting transmission rod 3. The vibration limiting device 5 is used to limit the vibration range of the adjusting transmission rod 3. By setting the vibration limiting device 5, the vibration amplitude during the rotation of the adjusting transmission rod 3 is reduced, thereby improving the user's comfort during the adjustment process.

[0044] Preferably, the vibration limiting device 5 can be fixedly connected to the adjustment drive device 2 or to the headrest transmission part 11.

[0045] Specifically, the vibration limiting device 5 is provided with several weight reduction holes 51; by providing weight reduction holes 51 on the vibration limiting device 5, the vibration amplitude of the adjusting transmission rod 3 is reduced, thereby reducing the manufacturing cost of the headrest mechanism.

[0046] The installation process of the adjustable headrest mechanism in this embodiment is as follows:

[0047] See appendix Figure 1 The adjustment drive device 2, adjustment transmission rod 3, transmission component 4 and motor rotating component 5 are all installed inside the seat back, and the headrest support component 1 is snapped into the seat headrest; specifically, the seat headrest is fitted onto the frame part 12, the lower end of the frame part 12 protrudes outside the seat headrest and is used to connect with the headrest transmission part 11 inside the seat back, thereby completing the seat installation.

[0048] The working principle of the adjustable headrest mechanism in this embodiment is as follows:

[0049] The drive motor 21 rotates under the user's operation command. Under the transmission of the transmission component 4 and the motor rotating component 6, it drives the adjusting transmission rod 3 to rotate, thereby driving the headrest transmission part 11 to move up and down, and then driving the frame part 12 to move up and down. When the frame part 12 moves up and down, the seat headrest fitted on the upper part of the frame part 12 moves up and down.

[0050] The beneficial effects of the adjustable headrest mechanism in this application embodiment are as follows:

[0051] 1. In this embodiment of the application, an adjustment drive device 2 is provided, which is drivenly connected to the adjustment transmission rod 3. The adjustment transmission rod 3 is drivenly connected to the headrest support 1. When the adjustment transmission rod 3 rotates, the headrest support 1 moves along the axial direction of the adjustment transmission rod 3. Thus, the user can adjust the headrest to any position by command, thereby meeting the user's personalized adjustment and improving user comfort.

[0052] 2. In this embodiment of the application, by connecting the headrest support 1 to the seat headrest, and setting the adjustment drive device 2 and the adjustment transmission rod 3 inside the seat back, the weight of the seat headrest is reduced, vibration during the adjustment process of the seat headrest is avoided, and the user's comfort is improved.

[0053] Example 2

[0054] Reference Appendix Figure 1-6The adjustable headrest mechanism includes a headrest support 1, an adjustment drive device 2, and an adjustment transmission rod 3. The adjustment drive device 2 is driven to the adjustment transmission rod 3. The headrest support 1 is engaged with the seat headrest. The adjustment drive device 2 and the adjustment transmission rod 3 are located inside the seat back. The adjustment drive device 2 drives the adjustment transmission rod 3 to rotate based on headrest adjustment commands. The adjustment transmission rod 3 is driven to the headrest support 1. When the adjustment transmission rod 3 rotates, the headrest support 1 moves along the axial direction of the adjustment transmission rod 3. By setting the adjustment drive device 2, which is driven to the adjustment transmission rod 3, and the adjustment transmission rod 3 is driven to the headrest support 1, the headrest support 1 moves along the axial direction of the adjustment transmission rod 3 when the adjustment transmission rod 3 rotates. Thus, the user can adjust the headrest to any position by command, thereby meeting the user's personalized adjustment needs and improving user comfort.

[0055] In this embodiment, the seat back has sufficient space to accommodate the adjustment drive device 2 and adjustment transmission rod 3. By engaging the headrest support 1 with the seat headrest, and placing the adjustment drive device 2 and adjustment transmission rod 3 inside the seat back, the weight of the seat headrest is reduced, vibration during the adjustment process is avoided, and user comfort is improved.

[0056] Specifically, the headrest support 1 includes a headrest transmission part 11 and a frame part 12. The headrest transmission part 11 is connected to the adjustment transmission rod 3, and the headrest transmission part 11 is connected to the frame part 12.

[0057] Preferably, the headrest transmission part 11 can be fixedly connected to the frame part 12; the headrest transmission part 11 can also be detachably connected to the frame part 12. The frame part 12 is the main structure supporting the headrest, and different frames can produce different headrest shapes. By detachably connecting the headrest transmission part 11 to the frame part 12, personalized needs can be further met, and user satisfaction can be improved.

[0058] Specifically, the adjusting transmission rod 3 includes an adjusting transmission part 31, which is connected to the headrest support 1 via the adjusting transmission part 31. The adjusting transmission part 31 is used to limit the movement stroke of the headrest support 1.

[0059] Specifically, the adjustable transmission part 31 is a structure with a limited length set on the adjustable transmission rod 3. Within its length range, the adjustable transmission part 31 is always connected to the headrest support 1. Thus, by limiting the length of the adjustable transmission part 31, the movement stroke of the headrest support 1 can be limited. By setting the adjustable transmission part 31 to limit the movement stroke of the headrest support 1, the adjustment transmission part 31 is prevented from falling off the headrest support 1, thereby ensuring the structural stability of the headrest mechanism.

[0060] Specifically, the headrest support 1 includes an axial transmission part 13, which is connected to the adjustment transmission part 31.

[0061] Specifically, the axial rotation part is set on the headrest transmission part 11, and the axial transmission part 13 can be sleeved on the adjustment transmission part 31. The adjustment transmission part 31 rotates inside the axial transmission part 13 and drives the axial transmission part 13 to move along the axial direction of the adjustment transmission rod 3. By sleeved the axial transmission part 13 on the adjustment transmission part 31, the structural design of the headrest is simplified, thereby reducing the manufacturing cost of the headrest.

[0062] Preferably, the axially rotating part is located at the axisymmetric center of the headrest transmission part 11.

[0063] Specifically, the adjustable headrest mechanism also includes a transmission component 4, which is coaxially connected to the adjusting transmission rod 3 and is also connected to the adjusting drive device 2.

[0064] Specifically, the adjustment drive device 2 includes a drive motor 21 and a power supply harness 22.

[0065] Specifically, the adjustable headrest mechanism also includes a motor transmission component 4, a motor rotating component 6 mounted on the rotating shaft of the motor, and the motor rotating component 6 rotates coaxially with the motor; the motor rotating component 6 is connected to the transmission component 4 for transmission.

[0066] Specifically, transmission component 4 includes a helical gear.

[0067] Specifically, the adjusting transmission part 31 includes a transmission rotary slide, and the axial transmission part 13 includes an axial transmission block that cooperates with the transmission rotary slide. When the adjusting transmission rod 3 rotates, the axial transmission block slides in the transmission rotary slide. By using a slide and slider structure for transmission, the smoothness of transmission is improved, and the smoothness of headrest mechanism adjustment is improved.

[0068] Specifically, it also includes a vibration limiting device 5, which is sleeved on the outside of the adjusting transmission rod 3. The vibration limiting device 5 is used to limit the vibration range of the adjusting transmission rod 3. By setting the vibration limiting device 5, the vibration amplitude during the rotation of the adjusting transmission rod 3 is reduced, thereby improving the user's comfort during the adjustment process.

[0069] Preferably, the vibration limiting device 5 can be fixedly connected to the adjustment drive device 2 or to the headrest transmission part 11.

[0070] Specifically, the vibration limiting device 5 is provided with several weight reduction holes 51; by providing weight reduction holes 51 on the vibration limiting device 5, the vibration amplitude of the adjusting transmission rod 3 is reduced, thereby reducing the manufacturing cost of the headrest mechanism.

[0071] The installation process of the adjustable headrest mechanism in this embodiment is as follows:

[0072] See appendix Figure 1 The adjustment drive device 2, adjustment transmission rod 3, transmission component 4 and motor rotating component 5 are all installed inside the seat back, and the headrest support component 1 is snapped into the seat headrest; specifically, the seat headrest is fitted onto the frame part 12, the lower end of the frame part 12 protrudes outside the seat headrest and is used to connect with the headrest transmission part 11 inside the seat back, thereby completing the seat installation.

[0073] The working principle of the adjustable headrest mechanism in this embodiment is as follows:

[0074] The drive motor 21 rotates under the user's operation command. Under the transmission of the transmission component 4 and the motor rotating component 6, it drives the adjusting transmission rod 3 to rotate, thereby driving the headrest transmission part 11 to move up and down, and then driving the frame part 12 to move up and down. When the frame part 12 moves up and down, the seat headrest fitted on the upper part of the frame part 12 moves up and down.

[0075] The beneficial effects of the adjustable headrest mechanism in this application embodiment are as follows:

[0076] 1. In this embodiment of the application, an adjustment drive device 2 is provided, which is drivenly connected to the adjustment transmission rod 3. The adjustment transmission rod 3 is drivenly connected to the headrest support 1. When the adjustment transmission rod 3 rotates, the headrest support 1 moves along the axial direction of the adjustment transmission rod 3. Thus, the user can adjust the headrest to any position by command, thereby meeting the user's personalized adjustment and improving user comfort.

[0077] 2. In this embodiment of the application, by connecting the headrest support 1 to the seat headrest, and setting the adjustment drive device 2 and the adjustment transmission rod 3 inside the seat back, the weight of the seat headrest is reduced, vibration during the adjustment process of the seat headrest is avoided, and the user's comfort is improved.

[0078] On the other hand, this application also provides a car seat, which includes the adjustable headrest mechanism described in the embodiments of this application; the beneficial effects of the car seat provided in the embodiments of this application are consistent with the beneficial effects of the aforementioned adjustable headrest structure, and will not be repeated here.

[0079] The foregoing description has fully disclosed the specific embodiments of this application. It should be noted that any modifications made by those skilled in the art to the specific embodiments of this application do not depart from the scope of the claims. Accordingly, the scope of the claims of this application is not limited to the foregoing specific embodiments.

Claims

1. An adjustable headrest structure, characterized by, The headrest support (1) is clamped with a seat headrest, the adjusting drive device (2) and the adjusting transmission rod (3) are arranged in a seat backrest; a space is arranged in the seat backrest to accommodate the adjusting drive device (2) and the adjusting transmission rod (3); The adjusting drive device (2) is drivingly connected with the adjusting transmission rod (3), and the adjusting drive device (2) is used for driving the adjusting transmission rod (3) to rotate based on a headrest adjusting instruction; The adjusting transmission rod (3) is drivingly connected with the headrest support (1), and the headrest support (1) moves along an axial direction of the adjusting transmission rod (3) under the rotation of the adjusting transmission rod (3); The headrest support (1) comprises a headrest transmission part (11) and a framework part (12), the headrest transmission part (11) is drivingly connected with the adjusting transmission rod (3), the headrest transmission part (11) is detachably connected with the framework part (12), and different framework parts (12) correspond to different headrest shapes; The vibration limiting device (5) is arranged outside the adjusting transmission rod (3), and the vibration limiting device (5) is used for limiting a vibration range of the adjusting transmission rod (3); The transmission member (4) is coaxially connected with the adjusting transmission rod (3), the transmission member (4) is drivingly connected with the adjusting drive device (2), and the transmission member (4) comprises a helical gear; The vibration limiting device (5) is provided with a weight-reducing hole (51).

2. An adjustable headrest structure according to claim 1, wherein The adjusting transmission rod (3) comprises an adjusting transmission part (31), the adjusting transmission rod (3) is drivingly connected with the headrest support (1) through the adjusting transmission part (31), and the adjusting transmission part (31) is used for limiting a movement stroke of the headrest support (1).

3. An adjustable headrest structure according to claim 2, wherein The headrest support (1) comprises an axial transmission part (13), and the axial transmission part (13) is drivingly connected with the adjusting transmission part (31).

4. An adjustable headrest structure according to claim 3, wherein The adjusting transmission part (31) comprises a transmission thread, the axial transmission part (13) comprises a transmission thread hole matched with the transmission thread, and the transmission thread rotates in the transmission thread hole under the rotation of the adjusting transmission rod (3).

5. An adjustable headrest structure according to claim 3, wherein The adjusting transmission part (31) comprises a transmission rotary sliding groove, the axial transmission part (13) comprises an axial transmission block matched with the transmission rotary sliding groove, and the axial transmission block slides in the transmission rotary sliding groove under the rotation of the adjusting transmission rod (3).

6. An automobile seat, the seat comprising the adjustable headrest structure according to any one of claims 1-5.

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