Cushion assembly, seat and vehicle
Patent Information
- Application Number
- CN202521877343.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-01
AI Technical Summary
然而，目前，本领域的坐垫组件仍需改进优化，尤其需要加强对坐垫组件前侧的调节连杆的支承及约束/限制，以避免其发生不期望的活动；例如，当坐垫组件受到向后的强载荷时，例如发生后撞(被追尾)时，车身及座椅突然地向前加速，在惯性影响下乘员等会施加给坐垫组件向后的作用力，若缺少对前侧调节连杆的有效支承，坐盆等可能发生不期望的活动(如向上翻转)，影响可靠性、安全性；并且，还需要发展坐垫组件的紧凑化设计，以适应有限的布置空间，还需要节约成本等
[0005]本申请的目的是提供一种坐垫组件。
Smart Images
Figure CN224660555U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a cushion assembly, a seat, and a vehicle. Background Technology
[0002] To enhance the user experience and meet the personalized needs of users, seat products (such as car seats) are generally equipped with posture adjustment devices to adjust the height, tilt angle, and other functions of the seat cushion, as well as to achieve zero-gravity seat modes.
[0003] Generally, zero-gravity seat modes provide better support and comfort by maintaining the user in a near-weightless posture, resulting in a more even distribution of body weight. However, current seat cushion assemblies in this field still require improvement and optimization, especially in strengthening the support and constraint / restriction of the adjustment linkage at the front of the seat cushion assembly to prevent unintended movements. For example, when the seat cushion assembly is subjected to a strong rearward load, such as in a rear-end collision, the vehicle body and seat suddenly accelerate forward. Under the influence of inertia, occupants will exert a rearward force on the seat cushion assembly. Without effective support for the front adjustment linkage, the seat may exhibit unintended movements (such as flipping upwards), affecting reliability and safety. Furthermore, there is a need to develop a more compact design for the seat cushion assembly to adapt to limited space and to save costs.
[0004] In view of this, the inventors of this application propose a cushion assembly, a seat, and a vehicle to meet at least one or a combination of the above technical requirements. Utility Model Content
[0005] The purpose of this application is to provide a seat cushion assembly.
[0006] Another object of this application is to provide a seat.
[0007] Another objective of this application is to provide a means of transportation.
[0008] A seat cushion assembly according to a first aspect of this application includes a slide rail bracket, a seat cushion side panel, a rear link, a front link, a zero-gravity adjustment link, a height adjustment drive device, and a zero-gravity adjustment drive device; wherein, the seat cushion side panel has a front portion and a rear portion; the rear link is rotatably connected to the slide rail bracket and rotatably connected to the rear portion; the front link and the zero-gravity adjustment link are rotatably connected; and the front link is rotatably connected to the front portion, and the zero-gravity adjustment link is rotatably connected to the slide rail bracket; the zero-gravity adjustment drive device connects the slide rail bracket and the zero-gravity adjustment link; and the two ends of the height adjustment drive device are respectively connected to the rear link and the front link.
[0009] like Figure 4As shown, in the comparative design, the height adjustment drive of the seat cushion assembly is generally connected between the rear linkage and the seat cushion side panel. For example... Figure 5 As shown, this application employs a design where the two ends of the height adjustment drive device are respectively connected to the rear linkage and the front linkage. This not only enables seat height and tilt adjustment, as well as functions commonly referred to in the art as a zero-gravity seat, but also prevents the seat cushion assembly from undergoing undesirable movement in dangerous situations such as rear-end collisions. The principle is that, taking a rear-end collision of a vehicle and seat as an example, the vehicle and seat suddenly accelerate forward, and the occupant's body, under inertia, exerts a strong rearward load on the seat cushion assembly. This causes the front linkage to rotate relative to the seat cushion side panel and the zero-gravity adjustment linkage, and the front and rear linkages... The changes in the included angle (such as expansion) and the tendency of the front side of the seat support to move (such as lifting) can lead to undesirable rotation if instability occurs. The seat assembly design of the comparison scheme cannot provide direct support and constraint to the front link through the height adjustment drive to limit the rotation of the front link. However, the design that uses the second connection end of the height adjustment drive to be connected to the front link can lock the front link through the height adjustment drive. The load is transferred from the front link through the height adjustment drive, which limits the rotation tendency of the front link, thereby preventing undesirable movement of the front link and seat support.
[0010] In one or more embodiments of the seat cushion assembly, the zero-gravity adjustment drive device is used to drive and lock the rotation of the zero-gravity adjustment linkage relative to the slide rail bracket; the height adjustment drive device includes a first connecting end and a second connecting end that are relatively movable and lockable, outputting linear motion through the relative movement of the first connecting end and the second connecting end, the first connecting end being rotatably connected to the rear linkage, and the second connecting end being rotatably connected to the front linkage; and the seat cushion assembly is provided with a first state structure, a second state structure, and a third state structure; wherein, the first state structure is configured such that the zero-gravity adjustment drive device is in a locked state, thereby locking... The zero-gravity adjustment linkage rotates relative to the slide rail bracket; the height adjustment drive device outputs movement to adjust the height of the seat cushion side panel; the second state structure is configured such that the height adjustment drive device is in a locked state, thereby locking the relative movement of the first connecting end and the second connecting end; the zero-gravity adjustment drive device outputs movement to adjust the tilt angle of the seat cushion side panel; the third state structure is configured such that both the height adjustment drive device and the zero-gravity adjustment drive device are in a locked state, respectively locking the front linkage and the zero-gravity adjustment linkage, restricting the relative rotation of the front linkage and the zero-gravity adjustment linkage.
[0011] In one or more embodiments of the seat cushion assembly, the zero-gravity adjustment drive includes a third connecting end and a fourth connecting end that are relatively movable and lockable. Linear motion is output through the relative movement of the third connecting end and the fourth connecting end. The third connecting end is rotatably connected to the zero-gravity adjustment linkage, and the fourth connecting end is rotatably connected to the slide rail bracket.
[0012] In one or more embodiments of the seat cushion assembly, the height adjustment drive and / or the zero-gravity adjustment drive includes a motor and a lead screw and nut mechanism connected to each other; the motor is used to output rotational motion to the lead screw and nut mechanism, and the lead screw and nut mechanism is used to convert the rotational motion received from the motor into linear motion.
[0013] In one or more embodiments of the seat cushion assembly, a gearbox is further provided between the motor and the lead screw and nut mechanism; and / or, the lead screw and nut mechanism includes a sleeve fitted over the outside of the lead screw.
[0014] In one or more embodiments of the seat cushion assembly, the seat cushion assembly includes two slide rail brackets, two seat cushion side plates, two rear links, two front links, and two zero-gravity adjustment links distributed on both sides along the Y direction; a single height adjustment drive device and a single zero-gravity adjustment drive device are distributed on both sides along the Y direction.
[0015] In one or more embodiments of the seat cushion assembly, it includes: a first horizontal tube, the two ends of which are rotatably connected to two seat cushion side plates, and two rear connecting rods fixedly connected to the first horizontal tube; and / or, a second horizontal tube, the two ends of which are rotatably connected to two slide rail brackets, two zero-gravity adjustment rods fixedly connected to the second horizontal tube, and a zero-gravity adjustment drive device connected to the second horizontal tube, driving the second horizontal tube to rotate the zero-gravity adjustment rods relative to the slide rail brackets; and / or, a third horizontal tube, the two ends of which are connected to two front connecting rods.
[0016] In one or more embodiments of the seat cushion assembly, the slide rail bracket is movably connected to a guide rail in the X direction; a seat basin is provided on the side panel of the seat cushion.
[0017] A seat according to a second aspect of this application includes a seat cushion assembly as described in the first aspect, and a backrest; the backrest is connected to the rear side of the seat cushion assembly.
[0018] A means of transport according to a third aspect of this application includes a seat as described in the second aspect. Attached Figure Description
[0019] The above and other features, properties, and advantages of this application will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection actually claimed by this application, wherein:
[0020] Figure 1 This is a structural schematic diagram of a vehicle and seat according to an embodiment of this application.
[0021] Figure 2 This is a schematic diagram of the structure of a seat cushion assembly according to an embodiment of this application.
[0022] Figure 3 This is another structural schematic diagram of a seat cushion assembly according to an embodiment of this application.
[0023] Figure 4 This is a simplified structural diagram of the seat cushion assembly for comparison.
[0024] Figure 5 This is a simplified structural diagram of a seat cushion assembly according to an embodiment of this application.
[0025] Figure label:
[0026] 1. Seat cushion assembly; 2. Seat; 3. Vehicle;
[0027] 11. Slide rail bracket; 12. Seat cushion side panel; 121. Front; 122. Rear;
[0028] 211. Rear link; 221. Front link; 222. Zero-gravity adjustment link;
[0029] 31. Height adjustment drive device; 311. First connecting end; 312. Second connecting end; 32. Zero gravity adjustment drive device; 321. Third connecting end; 322. Fourth connecting end; 33. Motor; 34. Screw and nut mechanism; 341. Screw component; 342. Nut component; 343. Sleeve; 35. Gearbox;
[0030] 41. First horizontal tube; 42. Second horizontal tube;
[0031] 50. Guide rail; 60. Seat basin; 70. Backrest. Detailed Implementation
[0032] Reference will now be made in detail to various embodiments of this application, examples of which are shown in the accompanying drawings and described below. Although this application will be described in conjunction with exemplary embodiments, it should be understood that this application is not intended to be limited to those exemplary embodiments. Rather, this application is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of this application as defined by the appended claims.
[0033] This application uses specific terms to describe embodiments of the application. For example, "an embodiment" and / or "one embodiment" refers to a feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" mentioned twice or more in different locations in this application does not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined. In the following description, the orientation or positional relationship indicated by terms such as "upper," "lower," "inner," "outer," "front," "rear," or other directional terms is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and / or implemented in a specific orientation, and therefore should not be construed as a limitation of the application. In this application, the terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying positional relationships or order of importance. In the following description, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly; for example, they can refer to fixed connections or movable connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0034] It is understood that the seat cushion assembly and seat provided in this application are particularly suitable for automobiles, but can also be applied to other applicable occasions, such as rail trains, ships, aircraft and other means of transportation, as well as applicable fixed places, such as meeting rooms, auditoriums, cinemas, etc., as long as the seat can use the seat cushion assembly disclosed in the embodiments of this application, and is not limited thereto.
[0035] For ease of description and simplification, this application uses the terms "X-direction" and "Y-direction" to indicate the directions shown in the figures. Generally, the X-direction is also the front-to-back direction (or length direction) of the seat and cushion assembly; the Y-direction is also the left-to-right direction (or width direction) of the seat and cushion assembly.
[0036] See Figure 2 , Figure 3 , Figure 5The seat cushion assembly 1 shown includes a slide rail bracket 11, a seat cushion side plate 12, a rear link 211, a front link 221, a zero-gravity adjustment link 222, a height adjustment drive device 31, and a zero-gravity adjustment drive device 32. The slide rail bracket 11 is located at the lower part of the seat cushion assembly 1, providing connection positions for the rear link 211, the zero-gravity adjustment link 222, and the zero-gravity adjustment drive device 32. Generally, the slide rail bracket 11 is slidably mounted on the guide rail 50 along the X-direction to achieve position adjustment of the seat cushion assembly in the X-direction (e.g., ...). Figure 1 (as shown); the slide rail bracket 11 can be a single piece extending in the X direction (e.g. Figure 2 As shown), it can also be composed of multiple components distributed along the X direction (such as...). Figure 3(As shown), but not limited thereto. The seat cushion side panel 12 extends in the X direction and has a front portion 121 and a rear portion 122; generally, the seat cushion side panel 12 provides mounting positions for the seat basin 60, backrest 70, etc., but is not limited thereto. The rear link 211 is rotatably connected to the slide rail bracket 11 and rotatably connected to the rear portion 122 of the seat cushion side panel 12. By moving the rear link 211, the rear portion 122 of the seat cushion side panel 12 can be moved away from and closer to the slide rail bracket 11. The front link 221 and the zero-gravity adjustment link 222 are rotatably connected to each other, and the front link 221 is rotatably connected to the front portion 121 of the seat cushion side panel 12, and the zero-gravity adjustment link 222 is rotatably connected to the slide rail bracket 11; by moving the front link 221 and the zero-gravity adjustment link 222, the front portion 121 of the seat cushion side panel 12 can be moved away from and closer to the slide rail bracket 11. The height adjustment drive device 31 is connected at both ends to the rear link 211 and the front link 221, respectively, thereby driving the rear link 211 and the front link 221 in linkage by outputting linear motion, and supporting and constraining the front link 221. Specifically, the height adjustment drive device 31 may include a first connecting end 311 and a second connecting end 312 that can be relatively displaced and locked, and output linear motion by the relative movement of the first connecting end 311 and the second connecting end 312. In other words, the height adjustment drive device 31 is configured as a linear drive device, which can realize the relative movement of the first connecting end 311 and the second connecting end 312 away from each other, close to each other, and maintain a relative position. The first connecting end 311 is rotatably connected to the rear link 211, and the second connecting end 312 is rotatably connected to the front link 221. The height adjustment drive device 31 is generally equipped with a motor 33, but it may also be equipped with a pneumatic or hydraulic device to provide driving force, without limitation. The connection positions of the seat side panel 12, the height adjustment drive device 31, and the slide rail bracket 11 on the rear connecting rod 211 can be sequentially distributed, without limitation. The zero-gravity adjustment drive device 32 is connected at both ends to the slide rail bracket 11 and the zero-gravity adjustment link 222, respectively, to adjust the rotation of the zero-gravity adjustment link 222 relative to the slide rail bracket 11. Specifically, the zero-gravity adjustment drive device 32 can be configured to drive and lock the rotation of the zero-gravity adjustment link 222 relative to the slide rail bracket 11, and can be similar to the height adjustment drive device 31. The zero-gravity adjustment drive device 32 can also be different from the height adjustment drive device 31, for example, it can also be an angle adjustment motor that outputs rotational motion, without limitation. By outputting linear motion through the height adjustment drive device 31, the rear link 211 and the front link 221 can be linked together, thereby driving the seat side plate 12 to move up and down relative to the slide rail bracket 11, so as to realize the height adjustment function of the seat assembly 1; by outputting motion through the zero gravity adjustment drive device 32, the front link 221 and the zero gravity adjustment link 222 can be linked together, thereby driving the front part 121 of the seat side plate 12 to move up and down relative to the slide rail bracket 11, so as to realize the adjustment of the tilt angle of the seat side plate 12, as well as the zero gravity mode commonly referred to in the art.
[0037] See Figure 4 The comparative embodiment shown has a seat cushion assembly 1a with its height adjustment drive device 31a positioned between its rear connecting rod 211a and the seat cushion side plate 12a at both ends. The seat cushion assembly 1 of this application, however, as... Figure 5 As shown, the two ends of the height adjustment drive device 31 are connected between the rear link 211 and the front link 221. In addition to enabling height and tilt adjustment of the seat cushion assembly 1 and zero-gravity seat modes, the height adjustment drive device 31 can also directly support the front link 221 and restrict its movement. When the adjustment is completed / stopped, both the height adjustment drive device 31 and the zero-gravity adjustment drive device 32 are simultaneously inactive / locked, supporting the front link 221 and the zero-gravity adjustment link 222 respectively, thereby restricting the relative rotation of the front link 221 and the zero-gravity adjustment link 222, preventing undesirable movement of the seat cushion assembly 1, and ensuring reliability and safety. Specifically, as... Figure 4 , Figure 5 As shown, taking the seat cushion assembly 1 bearing a rearward load as an example, for instance, when the vehicle 3 and seat 2 are involved in a rear-end collision (such as being rear-ended), under the influence of the inertia of the occupant's body, the seat cushion assembly 1 will bear a rearward force F, which will cause the front link 221 to rotate, the angle between the front link 221 and the zero-gravity adjustment link 222 to change (e.g., opening as shown in the figure), the front side of the seat cushion side panel 12 to move (e.g., lifting as shown in the figure), and the seat cushion side panel 12 to flip as a whole (e.g., flipping upwards and backwards as shown in the figure). If instability occurs, undesirable activities may occur. In this case, compared with the seat cushion assembly 1a of the comparative solution, an interlock is formed between the height adjustment drive device 31a, the rear link 211a and the seat cushion side panel 12a, and an interlock is formed between the slide rail bracket 11a, the zero-gravity adjustment link 222a and the zero-gravity adjustment drive device 32a. This structure cannot directly support and constrain the front link 221a through the height adjustment drive device 31a. Connecting the second connection end 312 of the height adjustment drive device 31 to the front link 221 enhances the support and constraint effect on the front link 221, forming a force transmission path from the front link 221 to the height adjustment drive device 31. When subjected to a backward force F as shown in the figure, the height adjustment drive device 31 and the zero-gravity adjustment drive device 32 respectively restrict the movement of the front link 221 and the zero-gravity adjustment link 222, preventing changes in their included angle and thus preventing undesirable movement of the seat cushion. Furthermore, the support and constraint effect on the front link 221 can be enhanced simply by adjusting the connection position of the height adjustment drive device 31, which helps to ensure that the seat cushion assembly 1 has a simple and compact structure.
[0038] like Figure 5As shown, in some embodiments, the seat cushion assembly 1 has a first state structure, a second state structure, and a third state structure. In the first state structure, the zero-gravity adjustment drive device 32 is locked, thereby preventing the rotation of the zero-gravity adjustment linkage 222 relative to the slide rail bracket 11; the height adjustment drive device 31 outputs linear motion, thereby adjusting the height of the seat cushion side plate 12. At this time, the zero-gravity adjustment drive device 32 is locked, forming an interlock between the zero-gravity adjustment drive device 32, the zero-gravity adjustment linkage 222, and the slide rail bracket 11, and forming an approximate four-bar linkage with the front linkage 221, the seat cushion side plate 12, and the rear linkage 211. Therefore, when the height adjustment drive device 31 outputs linear motion, the seat cushion side plate 12 can rise and fall relative to the slide rail bracket 11 to achieve height adjustment of the seat cushion side plate 12. The second state structure is configured such that the height adjustment drive device 31 is in a locked state, thereby locking the relative movement of the first connecting end 311 and the second connecting end 312; the zero-gravity adjustment drive device 32 outputs movement, thereby adjusting the tilt angle of the seat cushion side plate 12; specifically, as Figure 2 , Figure 5 As shown, relative to the scale of the entire structure, since the height adjustment drive device 31 and the seat side plate 12 are connected by the front link 221, the distance between the second connection end 312 and the front part 121 of the seat side plate 12 is very small, and their relative movement is very small. When in the second state structure, the height adjustment drive device 31 is locked so that the rear link 211, the seat side plate 12 and the height adjustment drive device 31 (connected by the front link 221) form an approximately stable triangular structure. Thus, when the zero gravity adjustment drive device 32 drives the zero gravity adjustment link 222, the front link 221 and the zero gravity adjustment link 222 are linked together, driving the front part 121 of the seat side plate 12 to rise and fall, so as to realize the tilt angle adjustment of the seat side plate 12. The third state structure is configured such that both the height adjustment drive 31 and the zero gravity adjustment drive 32 are in a locked state. In other words, when the adjustment activity is completed / stopped, both the height adjustment drive 31 and the zero gravity adjustment drive 32 are not working, and provide support, i.e., lock, for the front link 221 and the zero gravity adjustment link 222 respectively, thereby restricting the relative rotation of the front link 221 and the zero gravity adjustment link 222.
[0039] like Figure 2 , Figure 3 As shown, in some embodiments, the zero-gravity adjustment drive device 32 includes a third connecting end 321 and a fourth connecting end 322 that are movable relative to each other and can be locked. Linear motion is output by adjusting the relative position of the third connecting end 321 and the fourth connecting end 322. In other words, the zero-gravity adjustment drive device 32 is configured as a linear drive device. The third connecting end 321 is rotatably connected to the zero-gravity adjustment linkage 222, and the fourth connecting end 322 is rotatably connected to the slide rail bracket 11.
[0040] like Figure 2 , Figure 3 As shown, in some embodiments, the height adjustment drive device 31 and / or the zero-gravity adjustment drive device 32 include a motor 33 and a lead screw and nut mechanism 34 that are driven together; the lead screw and nut mechanism 34 includes a lead screw 341 and a nut 342 that cooperate with each other; the motor 33 is used to output rotational motion to the lead screw and nut mechanism 34, and the lead screw and nut mechanism 34 is used to convert the rotational motion received from the motor 33 into linear motion.
[0041] like Figure 2 , Figure 3 As shown, in some embodiments, an intermediate component, such as a gearbox 35 (reducer), is provided between the motor 33 and the lead screw and nut mechanism 34; in some embodiments, a sleeve 343 is provided on the nut 342, and the sleeve 343 is fitted over the outside of the lead screw 341; the sleeve 343 can also provide a connection position, for example... Figure 2 As shown, the end of the sleeve 343 is configured as the first connecting end 311 and pivotally connected to the rear connecting rod 211, but this is not a limitation; the sleeve is beneficial for protecting the lead screw 341 and preventing dust, etc.
[0042] like Figure 2 , Figure 3 As shown, in some embodiments, the seat cushion assembly 1 includes two slide rail brackets 11 distributed along the Y direction on both sides and moving synchronously, two seat cushion side plates 12, two rear connecting rods 211, two front connecting rods 221, and two zero-gravity adjustment connecting rods 222; a single height adjustment drive device 31 and a single zero-gravity adjustment drive device 32 are distributed along the Y direction on both sides; this design disperses the load on both sides, which helps to ensure the support capacity of the seat cushion assembly 1, and the use of a single height adjustment drive device 31 and a zero-gravity adjustment drive device 32 to adjust the seat cushion side plates 12 on both sides helps to save space and reduce costs.
[0043] like Figure 2 , Figure 3 As shown, in some embodiments, the seat cushion assembly 1 further includes a first horizontal tube 41, with two ends of the first horizontal tube 41 rotatably connected to two seat cushion side plates 12, and two rear connecting rods 211 fixedly connected to the first horizontal tube 41; in other words, the rear connecting rods 211 can be integrated on the first horizontal tube 41 on the rear side of the seat cushion assembly, for example, the rear connecting rods 211 and the first horizontal tube 41 are configured as a single piece; using the first horizontal tube 41 is beneficial to improving the overall rigidity and strength of the seat cushion assembly 1, ensuring that the rear connecting rods 211 on both sides rotate synchronously, and improving the stability of the structure.
[0044] like Figure 2 , Figure 3As shown, in some embodiments, the seat cushion assembly 1 further includes a second horizontal tube 42, with two slide rail supports 11 rotatably connected to both ends of the second horizontal tube 42. Two zero-gravity adjustment rods 222 are fixedly connected to the second horizontal tube 42, for example, the zero-gravity adjustment rods 222 and the second horizontal tube 42 are configured as welded components; and a zero-gravity adjustment drive device 32 is connected to the second horizontal tube 42, driving the second horizontal tube 42 to rotate the zero-gravity adjustment rods 222 relative to the slide rail supports 11; specifically, as Figure 3 As shown, the second horizontal tube 42 can be connected to the side plate 12 of the seat cushion through a tube expansion process; the second horizontal tube 42 can also be fixedly connected to a connecting bracket, which provides mounting holes. The third connecting end 321 of the zero gravity adjustment drive device 42 is rotatably connected to the connecting bracket through the mounting holes. The linear motion output by the zero gravity adjustment drive device 42 can drive the second horizontal tube 42 to rotate around the axis through the connecting bracket. The zero gravity connecting rod follows the second horizontal tube 42 and rotates relative to the slide rail bracket 11. The use of the second horizontal tube 42 is beneficial to improve the overall strength and rigidity of the seat cushion assembly 1, ensure that the zero gravity adjustment connecting rods 222 on both sides rotate synchronously, and improve the stability of the structure.
[0045] In some embodiments, the seat cushion assembly 1 further includes a third horizontal tube (not shown in the figure), with two front connecting rods 221 connected to both ends of the third horizontal tube to ensure that the two front connecting rods 221 move synchronously, thereby improving the strength, rigidity, and stability of the structure. Similar to the second horizontal tube 42, the third horizontal tube can also provide a connection position for the second connection end 312 of the height adjustment drive device 41, which will not be described in detail here. It can be understood that, based on meeting the safety and functional design requirements, some horizontal tubes can be appropriately reduced to save space and reduce costs. For example, in some embodiments, the seat cushion assembly 1 only includes the first horizontal tube 41 and the second horizontal tube 42, without the third horizontal tube.
[0046] like Figure 1 As shown, in some embodiments, the seat cushion assembly 1 further includes: a guide rail 50, and a slide rail bracket 11 is movably connected to the guide rail 50 in the X direction for adjusting the position of the seat cushion assembly 1 (slide rail bracket 11, etc.) in the X direction; and a seat basin 60, which provides a support surface for supporting the occupant and is fixedly disposed on the seat cushion side plate 12.
[0047] See Figure 1 The seat 2 shown includes a seat cushion assembly 1 and a backrest 70, which is rotatably connected to the rear side of the seat cushion assembly 1. Generally, the angle of the backrest 70 relative to the seat cushion assembly 1 is adjusted by means of an angle adjuster, an angle adjuster motor, etc.; the seat 2 may also be equipped with a seat belt, forming a seat integrated seat belt (ABTS seat) structure, but is not limited thereto.
[0048] See Figure 1The vehicle 3 shown is, for example, a car, whose cabin includes seats 2.
[0049] In summary, the beneficial technical effects of this application include, but are not limited to, at least one of the following:
[0050] The design, which connects the two ends of the height adjustment drive to the rear and front links respectively, not only enables seat height and tilt adjustment, as well as functions commonly referred to in the art as zero-gravity seats, but also prevents unintended movement of the seat cushion assembly in dangerous situations such as rear-end collisions. The principle is that, taking a rear-end collision as an example, the vehicle and seat suddenly accelerate forward, and the occupant's body, under inertia, exerts a strong rearward load on the seat cushion assembly. This causes the front link to rotate relative to the seat cushion side panel and the zero-gravity adjustment link, changes in the angle between the front and rear links (e.g., expansion), and movement of the front side of the seat cushion support (e.g., lifting). The design, with the second connection end of the height adjustment drive connected to the front link, allows the height adjustment drive to lock the front link. The load is transferred from the front link through the height adjustment drive, limiting the rotational tendency of the front link and thus preventing unintended movement of the front link and seat cushion support.
[0051] While this application discloses preferred embodiments as described above, it is not intended to limit the scope of this application. Any changes and modifications can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application, without departing from the content of the technical solution of this application, fall within the protection scope defined by the claims of this application.
Claims
1. A seat cushion assembly (1), characterized in that, Includes a slide rail bracket (11), a seat cushion side panel (12), a rear link (211), a front link (221), a zero-gravity adjustment link (222), a height adjustment drive device (31), and a zero-gravity adjustment drive device (32); among which, The seat cushion side panel (12) has a front part (121) and a rear part (122); The rear link (211) is rotatably connected to the slide rail bracket (11) and rotatably connected to the rear part (122); The front link (221) and the zero-gravity adjustment link (222) are rotatably connected; and the front link (221) is rotatably connected to the front part (121), and the zero-gravity adjustment link (222) is rotatably connected to the slide rail bracket (11); The zero-gravity adjustment drive device (32) connects the slide rail bracket (11) and the zero-gravity adjustment linkage (222); and, The two ends of the height adjustment drive device (31) are respectively connected to the rear link (211) and the front link (221).
2. The seat cushion assembly (1) according to claim 1, characterized in that, The zero-gravity adjustment drive device (32) is used to drive and lock the rotation of the zero-gravity adjustment linkage (222) relative to the slide rail bracket (11); the height adjustment drive device (31) includes a first connecting end (311) and a second connecting end (312) that can be moved and locked relative to each other, and outputs linear motion through the relative movement of the first connecting end (311) and the second connecting end (312). The first connecting end (311) is rotatably connected to the rear linkage (211), and the second connecting end (312) is rotatably connected to the front linkage (221); and the seat cushion assembly (1) is provided with a first state structure, a second state structure and a third state structure; wherein, The first state structure is configured such that: the zero gravity adjustment drive device (32) is in a locked state, thereby locking the rotation of the zero gravity adjustment linkage (222) relative to the slide rail bracket (11); the height adjustment drive device (31) outputs motion, thereby adjusting the height of the seat cushion side plate (12); The second state structure is configured such that: the height adjustment drive device (31) is in a locked state, thereby locking the relative movement of the first connecting end (311) and the second connecting end (312); the zero gravity adjustment drive device (32) outputs motion, thereby adjusting the tilt angle of the seat cushion side plate (12); The third state structure is configured such that both the height adjustment drive device (31) and the zero gravity adjustment drive device (32) are in a locked state, respectively locking the front link (221) and the zero gravity adjustment link (222), thereby restricting the relative rotation of the front link (221) and the zero gravity adjustment link (222).
3. The seat cushion assembly (1) according to claim 1, characterized in that, The zero-gravity adjustment drive device (32) includes a third connecting end (321) and a fourth connecting end (322) that can be moved and locked relative to each other. The linear motion is output through the relative movement of the third connecting end (321) and the fourth connecting end (322). The third connecting end (321) is rotatably connected to the zero-gravity adjustment linkage (222), and the fourth connecting end (322) is rotatably connected to the slide rail bracket (11).
4. The seat cushion assembly (1) according to claim 1, characterized in that, The height adjustment drive device (31) and / or the zero gravity adjustment drive device (32) include a motor (33) and a lead screw and nut mechanism (34) connected to each other; the motor (33) is used to output rotational motion to the lead screw and nut mechanism (34), and the lead screw and nut mechanism (34) is used to convert the rotational motion received from the motor (33) into linear motion.
5. The seat cushion assembly (1) according to claim 4, characterized in that, A gearbox (35) is also provided between the motor (33) and the lead screw and nut mechanism (34); and / or, the lead screw and nut mechanism (34) includes a sleeve (343) fitted around the outside of the lead screw (341).
6. The seat cushion assembly (1) according to claim 1, characterized in that, The seat cushion assembly (1) includes two slide rail brackets (11), two seat cushion side plates (12), two rear linkages (211), two front linkages (221), and two zero-gravity adjustment linkages (222) distributed on both sides along the Y direction; a single height adjustment drive device (31) and a single zero-gravity adjustment drive device (32) are distributed on both sides along the Y direction.
7. The seat cushion assembly (1) according to claim 6, characterized in that, include; A first horizontal tube (41), the two ends of which are rotatably connected to the two seat cushion side plates (12), and the two rear connecting rods (211) are fixedly connected to the first horizontal tube (41); and / or, The second horizontal tube (42) has two ends rotatably connected to the two slide rail supports (11), and the two zero-gravity adjustment rods (222) are fixedly connected to the second horizontal tube (42). Furthermore, the zero-gravity adjustment drive device (32) is connected to the second horizontal tube (42), driving the second horizontal tube (42) to rotate the zero-gravity adjustment rods (222) relative to the slide rail supports (11); and / or, The third horizontal tube is connected to the two front connecting rods (221) at its two ends.
8. The seat cushion assembly (1) according to claim 1, characterized in that, The slide rail bracket (11) is movable along the X direction and connected to the guide rail (50); the seat cushion side plate (12) is provided with a seat basin (60).
9. A seat (2), characterized in that, The cushion assembly (1) includes any one of claims 1 to 8, and further includes a backrest (70); the backrest (70) is connected to the rear side of the cushion assembly (1).
10. A means of transportation (3), characterized in that, Includes the seat (2) as described in claim 9.