Automobile seat structure

Abstract

The application relates to the field of seat structures, in particular to an automobile seat structure which comprises a seat frame, a headrest and a sliding rail mechanism, the headrest is in sliding cooperation with the seat frame through the sliding rail mechanism, the sliding rail mechanism comprises a guide rail, a lifting sliding block and an elastic locking piece, the guide rail is fixed on the seat frame, the lifting sliding block is in sliding cooperation with the guide rail, the headrest is fixed on the lifting sliding block, the elastic locking piece is arranged between the guide rail and the lifting sliding block and is used for generating sliding friction force so that the lifting sliding block can stop at any position of the guide rail. The structure can improve the convenience and stability of height adjustment of the seat headrest.

Description

Technical Field

[0001] This application relates to the field of seat structures, and more particularly to an automotive seat structure. Background Technology

[0002] As an important component of car seats, headrests primarily support passengers' heads, improving comfort and safety. With the continuous development of the automotive industry, people's demands for seat comfort are increasing, and headrest height adjustment has gradually become a key factor in enhancing user experience. Height-adjustable headrests can accommodate passengers of different heights, providing a more comfortable head support, effectively relieving neck fatigue and enhancing comfort and safety. However, current car headrests on the market still have many shortcomings in height adjustment, failing to meet consumers' expectations for high-quality seats. Currently, headrest height adjustment is mainly achieved through the following methods: Pin-type adjustment is a common method, where a pin is manually inserted and removed to adjust the headrest to the appropriate height before inserting the pin to secure it. Rack and pinion adjustment uses a rotating handle to move a rack and pinion to adjust the height. Gas spring adjustment uses the extension and retraction of a gas spring to change the headrest height. While this method is relatively simple to operate, the extension and retraction range of the gas spring is usually limited, and due to the high sealing requirements of the gas spring, air leakage is prone to occur after a period of use, causing the adjustment function to fail. Pin-type adjustments are inconvenient to operate and lack reliable fixation. Over long-term use, the process is cumbersome, and the pins are prone to loosening due to vibrations during vehicle operation. Loosening of the pins may affect the stability of the headrest, posing a safety hazard to passengers. Rack and pinion adjustments are not only complex and costly, but frequent use also leads to wear between the gears and rack, resulting in decreased adjustment accuracy. Pneumatic lever adjustments have a limited range of extension and contraction, making them prone to air leakage after a period of use. Their limited range and short lifespan also fail to meet the needs of some users requiring a wide range of height adjustments. None of these existing technologies can simultaneously guarantee convenient adjustment while ensuring structural stability and durability. Utility Model Content

[0003] To improve the convenience and stability of headrest height adjustment, this application provides an automotive seat structure.

[0004] This application provides an automotive seat structure, including a seat frame, a headrest, and a slide rail mechanism. The headrest is slidably engaged with the seat frame via the slide rail mechanism. The slide rail mechanism includes a guide rail, a lifting slider, and an elastic locking member. The guide rail is fixed to the seat frame, the lifting slider is slidably engaged with the guide rail, the headrest is fixed to the lifting slider, and the elastic locking member is disposed between the guide rail and the lifting slider to generate sliding friction, allowing the lifting slider to stop at any position on the guide rail. By adopting the above technical solution, a slide rail mechanism is provided in the automotive seat structure, wherein the guide rail is fixed to the seat frame, the lifting slider is slidably engaged with the guide rail, and the headrest is fixed to the lifting slider, enabling the headrest to be adjusted in height on the seat frame. The elastic locking member, disposed between the guide rail and the lifting slider, generates sliding friction when the lifting slider slides on the guide rail. Due to the existence of this friction, the lifting slider can stop and remain stable at any position on the guide rail during the sliding process. While ensuring convenient headrest height adjustment, the design also considers structural stability and durability, better adapting to the needs of passengers of different heights, providing a more fitting head support, effectively relieving neck fatigue, and enhancing riding comfort and safety. Preferably, the guide rail is provided with a T-slot, and the lifting slider is provided with a T-shaped protrusion adapted to the T-slot. By adopting the above technical solution, the guide rail is provided with a T-slot, and the lifting slider is provided with a T-shaped protrusion adapted to the T-slot. The T-shaped protrusion and the T-slot cooperate, allowing the T-shaped protrusion to move along the T-slot when the lifting slider slides on the guide rail. Due to the characteristics of the T-shaped structure, the protrusions on both sides can limit the horizontal swaying and deviation of the lifting slider, thereby ensuring that the lifting slider can only slide stably in a straight line along the direction of the guide rail, avoiding swaying or deviation during sliding, and effectively improving the stability of headrest height adjustment. Preferably, the lifting slider is provided with a receiving groove for accommodating the elastic locking member. By adopting the above technical solution, a receiving groove for accommodating the elastic locking component is provided on the lifting slider, which can stably house the elastic locking component within the lifting slider. This ensures that the elastic locking component functions normally between the guide rail and the lifting slider, generating sliding friction, thereby allowing the lifting slider to stop at any position on the guide rail, achieving reliable fixation of the headrest height at any position. Preferably, rollers are provided on both sides of the lifting slider, and the rollers make rolling contact with the inner wall of the guide rail. By adopting the above technical solution, providing rollers on both sides of the lifting slider and having the rollers make rolling contact with the inner wall of the guide rail transforms the original sliding friction between the slider and the guide rail into rolling friction between the rollers and the guide rail. Compared with sliding friction, rolling friction has less frictional force, making the sliding of the lifting slider on the guide rail smoother and improving the convenience of adjustment.Preferably, the device further includes a magnetic suction component, which comprises a first magnet and a second magnet. The first magnet is embedded in the guide rail, and a mounting bracket for mounting the headrest is provided on the side of the lifting slider away from the guide rail. The second magnet, which magnetically engages with the first magnet, is embedded in the lifting slider. By adopting the above technical solution, since the guide rail is embedded with the first magnet and the lifting slider is embedded with the second magnet, which magnetically engages with the first magnet, when the lifting slider slides on the guide rail and reaches a suitable position, the magnetic attraction between the first magnet and the second magnet can further enhance the connection stability between the lifting slider and the guide rail. This allows the headrest to remain more stably in that position after being adjusted to the required height, preventing the headrest from shifting due to vibrations or other factors during vehicle operation, thereby improving the stability and reliability of the headrest after height adjustment. Preferably, the device further includes a magnetic suction component, which comprises a first magnet and a second magnet. A mounting bracket for mounting a headrest is provided on the side of the lifting slider away from the guide rail. The mounting bracket is rotatably connected to the lifting slider. The guide rail is embedded with the first magnet, and the mounting bracket is embedded with the second magnet, which forms a magnetic attraction with the first magnet. The mounting bracket is rotatable until the second magnet and the first magnet form a magnetic attraction. By adopting the above technical solution, a magnetic suction component is provided in the car seat structure. The magnetic suction component includes a first magnet and a second magnet, with the first magnet embedded in the guide rail and the second magnet embedded in the mounting bracket for mounting the headrest, which is rotatably connected to the lifting slider. When it is necessary to fix the position of the headrest, it is only necessary to rotate the mounting bracket to separate the second magnet from the first magnet and release the magnetic attraction. Applying a certain force allows the headrest to move freely to any position. Then, rotating the mounting bracket causes the second magnet to separate from the first magnet, forming a magnetic attraction. Due to the magnetic force between the magnets, a strong attraction force is generated, firmly fixing the mounting bracket to the corresponding position on the guide rail. This ensures the headrest is stably maintained at a specific height and angle, preventing positional changes due to vibrations during vehicle operation and improving the headrest's stability and reliability. Preferably, the guide rail has an upward-opening U-shaped groove that communicates with the T-shaped groove. The T-shaped protrusion is inserted downwards into the T-shaped groove from the opening of the U-shaped groove, abutting against the bottom of the U-shaped groove to limit the further downward movement of the lifting slider. By adopting the above technical solution, the guide rail is provided with a U-shaped groove with the opening facing upward and communicating with the T-shaped groove, so that the T-shaped protrusion can be inserted downward into the T-shaped groove from the opening of the U-shaped groove. When the T-shaped protrusion abuts against the bottom of the U-shaped groove, the bottom of the groove blocks the T-shaped protrusion, thereby limiting the lifting slider from moving downward. This can effectively prevent the lifting slider from moving downward too much, ensuring the stability and safety of the headrest during the adjustment process.Preferably, the headrest also includes a guide frame, with a guide frame provided on one side of the headrest. The guide frame has a guide groove for abutting against the seat frame. When the headrest is raised or lowered, the guide frame and the seat frame form a sliding engagement. By adopting the above technical solution, a guide frame is provided on one side of the headrest, and the guide frame has a guide groove for abutting against the seat frame. When the headrest is raised or lowered, the guide groove on the guide frame contacts the seat frame and forms a sliding engagement. This engagement method can provide precise guidance for the raising and lowering process of the headrest, preventing the headrest from shaking or deviating during the raising and lowering process, making the raising and lowering of the headrest more stable and smooth, thereby improving the reliability and stability of the headrest height adjustment.

[0005] In summary, this application includes at least one of the following beneficial technical effects: 1. The headrest slides and engages with the seat frame via a slide rail mechanism. An elastic locking element is positioned between the guide rail and the lifting slider. During headrest height adjustment, the elastic locking element generates sliding friction. Based on this sliding friction, the lifting slider can remain at any position on the guide rail. This friction ensures the headrest is fixed and stable, thereby enabling convenient adjustment of the headrest height. 2. With its magnetic attachment and rotating mounting bracket, the headrest can be easily unlocked by rotating it, allowing it to remain stably at a specific height and angle. This prevents the headrest from shifting due to vibrations or other factors during vehicle travel on bumpy roads, thus improving its stability and reliability. Attached Figure Description

[0006] Figure 1 This is an exploded view of an automobile seat structure according to Example 1; Figure 2 This is a structural diagram of the guide rail for a car seat structure according to Embodiment 1; Figure 3 This is a structural diagram of the lifting slider of an automobile seat structure according to Embodiment 1; Figure 4 This is a structural diagram of the lifting slider of an automobile seat structure from another perspective in Embodiment 1; Figure 5 This is a connection structure diagram of the mounting bracket and lifting slider of an automobile seat structure according to Embodiment 2.

[0007] Explanation of reference numerals in the attached drawings: 1. Seat frame; 2. Headrest; 3. Slide rail mechanism; 4. Magnetic component; 21. Guide frame; 31. Guide rail; 32. Lifting slider; 33. Elastic locking component; 34. Mounting bracket; 311. T-slot; 312. U-slot; 321. T-shaped protrusion; 322. Receiving groove; 323. Roller; 341. Hinge seat; 41. First magnet; 42. Second magnet. Detailed Implementation

[0008] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0009] Example 1 This application provides an embodiment of an automotive seat structure, referring to... Figure 1 The system includes a seat frame 1, a headrest 2, and a sliding rail mechanism 3. The headrest 2 slides and engages with the seat frame 1 via the sliding rail mechanism 3, allowing for height adjustment. This design allows passengers of different heights to adjust the headrest 2 to a comfortable height, providing better head support. With proper head support, the pressure on the passenger's neck is reduced, effectively alleviating neck fatigue and enhancing both comfort and safety.

[0010] Specifically, in this embodiment, the slide rail mechanism 3 includes a guide rail 31, a lifting slider 32, an elastic locking element 33, and a mounting bracket 34. The guide rail 31 is fixed to the seat frame 1. To ensure a stable connection between the guide rail 31 and the seat frame 1 and to prevent loosening during vehicle operation, it is fixed using bolts or other methods. The guide rail 31 is made of high-strength metal materials, such as aluminum alloy or stainless steel. These materials have good strength and corrosion resistance, ensuring that the guide rail 31 will not deform or be damaged during long-term use. The lifting slider 32 slides in conjunction with the guide rail 31. The headrest 2 is fixed to the lifting slider 32. When it is necessary to adjust the height of the headrest 2, simply push the headrest 2 to make the lifting slider 32 slide on the guide rail 31, thereby adjusting the height of the headrest 2.

[0011] Reference Figure 2 The guide rail 31 is provided with a T-slot 311, and the lifting slider 32 is provided with a T-shaped protrusion 321 that matches the T-slot 311. The cooperation between the T-slot 311 and the T-shaped protrusion 321 effectively prevents the lifting slider 32 from detaching from the guide rail 31, improving the stability of the structure. The shape design of the T-slot 311 ensures that when the T-shaped protrusion 321 slides within the slot, it can only move along the direction of the guide rail 31, without lateral wobbling. To reduce friction during sliding and improve the smoothness of adjustment, the surfaces of the T-slot 311 and the T-shaped protrusion 321 can be smoothed, such as polished or nickel-plated. After smoothing, the T-shaped protrusion 321 slides more smoothly within the T-slot 311, making it easier to adjust the height of the headrest 2.

[0012] The guide rail 31 has an upward-facing U-shaped groove 312 that communicates with a T-shaped groove 311. A T-shaped protrusion 321 is inserted downward into the T-shaped groove 311 from the opening of the U-shaped groove 312, and abuts against the bottom of the U-shaped groove 312 to limit the downward movement of the lifting slider 32. The design of the U-shaped groove 312 facilitates the installation and removal of the lifting slider 32, and also limits its downward movement. During installation, the T-shaped protrusion 321 of the lifting slider 32 is inserted downward into the T-shaped groove 311 from the opening of the U-shaped groove 312 until it abuts against the bottom of the U-shaped groove 312. This completes the installation of the lifting slider 32 and ensures that the lifting slider 32 does not move downward excessively, thus guaranteeing the safety and stability of the headrest 2 adjustment.

[0013] Reference Figure 3 and Figure 4 The lifting slider 32 is provided with a receiving groove 322 for accommodating the elastic locking member 33. The function of the receiving groove 322 is to fix the elastic locking member 33 in a suitable position so that it can function accurately. The size and shape of the receiving groove 322 must match the elastic locking member 33 to ensure that the elastic locking member 33 can be tightly installed in the groove. It also ensures that the end of the elastic locking member 33 can tightly abut against the guide rail 31, thereby ensuring that the elastic locking member 33 generates sufficient friction. The elastic locking member 33 is disposed between the guide rail 31 and the lifting slider 32, and its function is to generate sliding friction, allowing the lifting slider 32 to stop at any position on the guide rail 31. In this embodiment, the elastic locking member 33 adopts a structure of spring and sliding plate. One end of the spring is fixed to the bottom of the receiving groove 322, and the other end is connected to the sliding plate. The sliding plate slides against the guide rail 31. Correspondingly, the guide rail 31 in this embodiment is provided with a sliding groove for accommodating the sliding plate, so that the sliding plate can move within the sliding groove.

[0014] The lifting slider 32 has rollers 323 on both sides, which roll in contact with the inner wall of the guide rail 31. The rollers 323 can be installed using shafts and bearings to ensure flexible rotation. The rollers 323 make the sliding of the lifting slider 32 on the guide rail 31 smoother, reducing resistance and improving ease of adjustment.

[0015] Specifically, the side of the lifting slider 32 away from the guide rail 31 is provided with a mounting bracket 34 for mounting the headrest 2. A guide frame 21 is provided on one side of the headrest 2, and the guide frame 21 has a guide groove for abutting against the seat frame 1. When the headrest 2 is raised or lowered, the guide frame 21 and the seat frame 1 form a sliding engagement. The guide frame 21 can be made of metal or plastic, and the shape of its guide groove must be adapted to the shape of the seat frame 1 to ensure that the guide frame 21 can slide smoothly along the seat frame 1. The function of the guide frame 21 is to provide additional guidance and support during the raising and lowering of the headrest 2, further improving the stability and smoothness of the raising and lowering of the headrest 2. It can prevent the headrest 2 from shaking or deviating during the raising and lowering process, allowing the headrest 2 to rise and fall more accurately along the predetermined trajectory.

[0016] Specifically, it also includes a magnetic chuck 4, which comprises a first magnet 41 and a second magnet 42. The first magnet 41 is embedded in the guide rail 31, and the second magnet 42, which magnetically engages with the first magnet 41, is embedded in the lifting slider 32. The first magnet 41 and the second magnet 42 can be permanent magnets, such as neodymium iron boron magnets, which have strong magnetism. The function of the magnetic chuck 4 is to further fix the lifting slider 32 in place by magnetic force after it has moved to the appropriate position, thereby enhancing the stability of the headrest 2. This allows the lifting slider 32 to stay more firmly in place, reducing movement caused by vibration and other factors. Even if there is significant vibration during vehicle operation, the lifting slider 32 is less likely to shift under the action of magnetic force, ensuring the stability of the headrest 2.

[0017] The implementation principle of this embodiment is as follows: The height of the headrest 2 is adjusted through the slide rail mechanism 3. The cooperation of the T-slot 311 and the T-protrusion 321 ensures the stability of the lifting slider 32 sliding on the guide rail 31, preventing it from detaching from the guide rail 31, so that the headrest 2 will not accidentally fall off during the adjustment process. The sliding friction generated by the elastic locking member 33 allows the lifting slider 32 to stay at any position on the guide rail 31, ensuring the stability of the headrest 2 after adjustment and preventing the headrest 2 from shifting due to vibration. The roller 323 reduces sliding resistance and improves the convenience of adjustment, allowing passengers to easily adjust the height of the headrest 2. The magnetic suction member 4 further enhances the stability of the headrest 2 through magnetic force, ensuring that the headrest 2 is fixed in position even in a vibration environment. The U-slot 312 facilitates the installation and limiting of the lifting slider 32, simplifies the installation process, and ensures the safety of the headrest 2 adjustment. The guide frame 21 provides additional guidance and support for the lifting of the headrest 2, making the lifting of the headrest 2 more stable and accurate. While ensuring convenient adjustment, the overall structure also takes into account the stability and durability of the structure. It overcomes the problems of inconvenient operation and unreliable fixation of the pin-type adjustment, complex, costly and easy-to-wear gear and rack adjustment structure, and limited adjustment range and easy air leakage of the pneumatic rod type in the existing technology, thus providing passengers with a better riding experience.

[0018] Example 2 The difference between this embodiment and Embodiment 1 above is that: (Refer to...) Figure 5 The arrangement of the magnetic suction component 4 differs. In this embodiment, the mounting bracket 34 for mounting the headrest 2 is rotatably connected to the lifting slider 32 via a hinge seat 341. A first magnet 41 is embedded in the guide rail 31, and a second magnet 42, which magnetically engages with the first magnet 41, is embedded on the side of the mounting bracket 34 near the guide rail 31. Applying force causes the mounting bracket 34 to rotate around a horizontal axis until the second magnet 42 and the first magnet 41 form a magnetic engagement. The size of the lifting slider 32 is adjusted to facilitate the rotation of the second magnet 42 of the mounting bracket 34 to form a magnetic engagement with the first magnet 41 of the guide rail 31. When it is necessary to adjust the height of the headrest 2, the mounting bracket 34 can be rotated to release the magnetic engagement between the second magnet 42 on the mounting bracket 34 and the first magnet 41 on the guide rail 31, allowing the height of the headrest 2 to be adjusted arbitrarily. Then, the headrest 2 can be rotated back to further securely stabilize it in that position.

[0019] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A car seat structure, characterized in that, The device includes a seat frame (1), a headrest (2), and a slide rail mechanism (3). The headrest (2) slides with the seat frame (1) through the slide rail mechanism (3). The slide rail mechanism (3) includes a guide rail (31), a lifting slider (32), and an elastic locking member (33). The guide rail (31) is fixed on the seat frame (1). The lifting slider (32) slides with the guide rail (31). The headrest (2) is fixed on the lifting slider (32). The elastic locking member (33) is disposed between the guide rail (31) and the lifting slider (32) to generate sliding friction so that the lifting slider (32) can stay at any position on the guide rail (31).

2. The automobile seat structure according to claim 1, characterized in that, The guide rail (31) is provided with a T-slot (311), and the lifting slider (32) is provided with a T-shaped protrusion (321) that is adapted to the T-slot (311).

3. The automobile seat structure according to claim 1, characterized in that, The lifting slider (32) is provided with a receiving groove (322) for accommodating the elastic locking member (33).

4. The automobile seat structure according to claim 1, characterized in that, Rollers (323) are provided on both sides of the lifting slider (32), and the rollers (323) roll in contact with the inner wall of the guide rail (31).

5. The automobile seat structure according to claim 1, characterized in that, It also includes a magnetic suction component (4), which includes a first magnet (41) and a second magnet (42). The lifting slider (32) is provided with a mounting bracket (34) for mounting the headrest (2) on the side away from the guide rail (31). The guide rail (31) is embedded with the first magnet (41), and the lifting slider (32) is embedded with the second magnet (42) that forms a magnetic attraction with the first magnet (41).

6. The automobile seat structure according to claim 1, characterized in that, It also includes a magnetic suction component (4), which includes a first magnet (41) and a second magnet (42). The lifting slider (32) is provided with a mounting bracket (34) for mounting the headrest (2) on the side away from the guide rail (31). The mounting bracket (34) is rotatably connected to the lifting slider (32). The guide rail (31) is embedded with the first magnet (41). The mounting bracket (34) is embedded with the second magnet (42) that forms a magnetic attraction with the first magnet (41). The mounting bracket (34) is rotatable until the second magnet (42) forms a magnetic attraction with the first magnet (41).

7. The automobile seat structure according to claim 2, characterized in that, The guide rail (31) is provided with an upward-facing U-shaped groove (312), which is connected to the T-shaped groove (311). The T-shaped protrusion (321) is inserted downward into the T-shaped groove (311) from the opening of the U-shaped groove (312). The T-shaped protrusion (321) abuts against the bottom of the U-shaped groove (312) to limit the lifting slider (32) from continuing to move downward.

8. The automobile seat structure according to claim 1, characterized in that, It also includes a guide frame (21), which is provided on one side of the headrest (2). The guide frame (21) is provided with a guide groove for abutting against the seat frame (1). When the headrest (2) is raised or lowered, the guide frame (21) and the seat frame (1) form a sliding engagement.

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