Zero-gravity seat cushion inclination angle reset adjusting mechanism and automobile seat
By introducing a combination of a reset plate, friction ring, and detonator into the zero-gravity seat, the problem of seat cushion tilt angle reset in emergency situations is solved, achieving effective restraint of the seat belt and a synergistic improvement in comfort and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-03-13
AI Technical Summary
Existing zero-gravity seats lack a quick seat cushion tilt reset function in emergencies, resulting in reduced seat belt restraint and extreme pressure on the occupant's spine, threatening personal safety.
Design a reset assembly including a reset plate, a friction ring, and an initiator. The initiator drives the pin to retract, causing the reset plate to rotate and connect with the front lower connecting plate, thereby achieving rapid reset of the seat cushion tilt angle. The friction ring absorbs energy to ensure that the seat belt effectively restrains the occupant.
It enables rapid repositioning of the seat cushion angle in emergency situations, reducing occupant injury, improving safety and comfort, ensuring effective seatbelt restraint, and enhancing the user experience.
Smart Images
Figure CN121650531A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive seat technology, and more particularly to a zero-gravity seat cushion tilt angle reset adjustment mechanism and an automotive seat. Background Technology
[0002] Zero-gravity seats are multi-adjustable seats, including those for backrest angle, leg rest extension length and angle, and seat frame height and angle. They simulate the "zero-gravity posture" found in aerospace—creating an approximately 120° angle between the torso and legs—distributing body weight evenly across the seat surface. This avoids concentrated pressure in specific areas, effectively reducing tension on key joints such as the cervical spine, lumbar spine, and hip joints. It also reduces pressure on the spine from internal organs, allowing occupants to adjust their seating posture according to their individual needs, providing far greater comfort and support than traditional seats.
[0003] In zero-gravity mode, when the seat is in a reclining position at a large angle, the occupant's upper body leans excessively backward, reducing the restraining effect of the seat belt. In the event of a collision, most existing zero-gravity seat cushion tilt adjustment mechanisms lack a quick reset function, making it impossible to adjust the seat posture in time during an emergency. This results in extreme pressure on the occupant's spine, seriously threatening their personal safety.
[0004] Therefore, there is an urgent need to design a zero-gravity seat cushion tilt angle reset adjustment mechanism and a car seat that can automatically and quickly reset the seat cushion tilt angle in the event of a collision when the seat is in a reclining position at a large angle. This ensures the effective restraint of the seat belt on the occupant, absorbs energy during the tilt angle recovery process, reduces the injury value, improves the safety of the zero-gravity seat in emergency situations, achieves a synergistic improvement in "comfort and safety", and effectively enhances the user experience. Summary of the Invention
[0005] To overcome the problems existing in related technologies, this application provides a zero-gravity seat cushion tilt angle reset adjustment mechanism and a car seat. When the seat is in a large reclining position, the zero-gravity seat cushion tilt angle reset adjustment mechanism and the car seat can automatically and quickly reset the seat cushion tilt angle in the event of a vehicle collision, ensuring the effective restraint of the occupant by the seat belt. At the same time, it absorbs energy during the tilt angle recovery process, reducing the damage value and improving the safety of the zero-gravity seat in emergency situations. This achieves a synergistic improvement in "comfort and safety" and effectively enhances the user experience.
[0006] The first aspect of this application provides a zero-gravity seat cushion tilt angle reset adjustment mechanism, including a seat cushion frame, a front upper connecting plate, a reset component, and a seat cushion base; the seat cushion frame is disposed above the seat cushion base, and one end is rotatably connected to the seat cushion base; the front upper connecting plate is disposed at the other end of the seat cushion frame and is rotatably connected to the seat cushion frame; the reset component is disposed between the seat cushion frame and the seat cushion base, and is rotatably connected to both the front upper connecting plate and the seat cushion base, for adjusting the relative position of the front upper connecting plate and the seat cushion base in an emergency to achieve rapid reset of the seat cushion tilt angle.
[0007] In a preferred embodiment of this application, the reset assembly includes a reset plate, a friction ring, a detonator, and a lower front connecting plate; the reset plate is rotatably connected to the upper front connecting plate; the friction ring is fixedly connected to the reset plate; the lower front connecting plate is sleeved on the friction ring and is movably connected to the seat base; the detonator is disposed on the outside of the lower front connecting plate and connected to the lower front connecting plate.
[0008] In a preferred embodiment of this application, the reset plate is provided with a first mounting hole, a second mounting hole, and a third mounting hole; the first mounting hole is located at one end of the reset plate and is used for hinged connection with the front upper connecting plate; the second mounting hole is located at the convex edge of the reset plate and is used for connecting the detonator; the third mounting hole clearance hole is located on the arc edge side of the reset plate and is used for connecting the friction ring.
[0009] In a preferred embodiment of this application, the friction ring includes a circular ring and a mounting shaft; the circular ring and the mounting shaft are rotatable relative to each other, and the rotation is accompanied by resistance to absorb energy; wherein, the circular ring is concentrically fixedly connected to the third mounting hole of the reset plate, and the third mounting hole is used to prevent the mounting shaft from contacting the reset plate; the mounting shaft is fixedly connected to the mounting hole of the front lower connecting plate.
[0010] In a preferred embodiment of this application, the detonator includes a detonator body and a pin; the detonator body has a fixing hole and is fixed to the front lower connecting plate by a screw passing through the fixing hole; one end of the pin is disposed in the accommodating cavity of the detonator body, and the other end extends outward and passes through the pin hole of the front lower connecting plate to connect with the reset plate.
[0011] In a preferred embodiment of this application, the lower front connecting plate is further provided with a hinge hole; the hinge hole is rotatably connected to the seat base.
[0012] A second aspect of this application provides an automobile seat, including the aforementioned zero-gravity seat cushion tilt angle reset adjustment mechanism.
[0013] The technical solution provided in this application has the following beneficial effects: The zero-gravity seat cushion tilt angle reset adjustment mechanism provided in this application includes a seat cushion frame, a front upper connecting plate, a reset assembly, and a seat cushion base. A detonator drives the pin to retract, thereby changing the connection between the reset plate and the front lower connecting plate from a fixed connection via the pin to a rotational connection via the friction ring. This allows the front lower connecting plate and the reset plate to rotate relative to each other. In the event of an emergency such as a frontal collision, under the pressure of the human body and the seat frame, the front upper connecting plate can move downwards as a whole, thereby causing the seat cushion frame to rotate rapidly around its hinge point with the seat cushion base, completing the rapid reset of the seat tilt angle. This ensures that the seat belt can effectively restrain the occupant's body again, preventing forward lurching due to inertia. During the reset process, the friction ring provides resistance, buffering and absorbing energy, greatly reducing the risk of injury to the occupant in an accident, improving the safety of the zero-gravity seat in emergency situations, and achieving a synergistic improvement in "comfort and safety." By incorporating a friction ring, a certain degree of buffering, energy absorption, and guiding effect can be achieved during the seat cushion tilt angle reset process, ensuring a smooth and reliable reset. Compared to existing technologies, the solution provided in this application can automatically and quickly reset the seat cushion tilt angle, ensuring the effective restraint of the seat belt on the occupant, improving the safety of zero-gravity seats in emergency situations, achieving a synergistic improvement in both comfort and safety, and effectively enhancing the user experience.
[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0015] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0016] Figure 1 This is a schematic diagram of the structure of a seat cushion in a zero-gravity state, as shown in the embodiments of this application;
[0017] Figure 2 yes Figure 1 Schematic diagram of the middle section;
[0018] Figure 3 This is a schematic diagram of the seat cushion in its reset state, as shown in an embodiment of this application.
[0019] Figure 4 This is a schematic diagram of the reset component in a zero-gravity state, as shown in an embodiment of this application;
[0020] Figure 5This is a schematic diagram of the reset component in the reset state as shown in the embodiments of this application;
[0021] Figure 6 This is an exploded view of the reset component shown in an embodiment of this application.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Seat cushion frame; 2. Upper front connecting plate; 3. Reset assembly; 31. Reset plate; 311. First mounting hole; 312. Second mounting hole; 313. Third mounting hole; 32. Friction ring; 321. Circular ring; 322. Mounting shaft; 33. Detonator; 331. Detonator body; 332. Pin; 34. Lower front connecting plate; 341. Hinge hole; 342. Pin hole; 343. Mounting hole; 4. Seat cushion base. Detailed Implementation
[0024] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0025] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.
[0026] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0027] In zero-gravity mode, the upper body of the occupant leans back excessively, which reduces the restraining effect of the seat belt. In the event of a collision, most existing zero-gravity seat cushion tilt adjustment mechanisms lack a quick reset function, making it impossible to adjust the seat posture in time in an emergency. This results in extreme pressure on the occupant's spine, seriously threatening the occupant's personal safety.
[0028] To address the aforementioned issues, this application provides a zero-gravity seat cushion tilt angle reset adjustment mechanism. When the seat is in a reclining position at a large tilt angle, in the event of an emergency such as a frontal collision, the seat cushion tilt angle can be automatically and quickly reset to its original position. This ensures the seat belt effectively restrains the occupant, absorbs energy during the tilt angle recovery process, reduces the injury value, and improves the safety of the zero-gravity seat in emergency situations. This achieves a synergistic improvement in both comfort and safety, effectively enhancing the user experience.
[0029] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0030] Example 1
[0031] Please see Figures 1-6 The zero-gravity seat cushion tilt angle reset adjustment mechanism of this application includes a seat cushion frame 1, a front upper connecting plate 2, a reset component 3, and a seat cushion base 4. The seat cushion frame 1 is disposed above the seat cushion base 4 to support the weight of the occupant, and one end of the seat cushion frame 1 is rotatably connected to the seat cushion base 4, allowing the seat cushion frame 1 to rotate relative to the seat cushion base 4 at a certain angle, facilitating the adjustment of the seat cushion tilt angle. The front upper connecting plate 2 is disposed at the other end of the seat cushion frame 1 and is rotatably connected to the seat cushion frame 1, allowing the front upper connecting plate 2 to adjust its relative position to the seat cushion frame 1 under the drive of the front drive component, thereby facilitating the adjustment of the seat cushion height and angle. The seat cushion base 4 fixedly supports the seat cushion frame 1, the front upper connecting plate 2, and the reset component 3, etc. The reset component 3 is disposed between the seat cushion frame 1 and the seat cushion base 4, and is rotatably connected to the front upper connecting plate 2 and the seat cushion base 4 respectively. It is used to adjust the relative position of the front upper connecting plate 2 and the seat cushion base 4 in an emergency, and absorb impact energy to achieve rapid reset of the seat cushion tilt angle.
[0032] Specifically, the reset assembly 3 includes a reset plate 31, a friction ring 32, a detonator 33, and a lower front connecting plate 34. The reset plate 31 is rotatably connected to the upper front connecting plate 2. For example, the reset plate 31 has a first mounting hole 311, a second mounting hole 312, and a third mounting hole 313. The first mounting hole 311 is located at one end of the reset plate 31 and is used to hinge with the upper front connecting plate 2, thereby enabling relative rotation between the two. The second mounting hole 312 is located on the protruding edge of the reset plate 31 and is used to connect the detonator 33. The third mounting hole 313 is a clearance hole located on the arc-shaped side of the reset plate 31 and is used to connect the friction ring 32 while avoiding the mounting shaft 322 of the friction ring 32.
[0033] The friction ring 32 is fixedly connected to the reset plate 31. Specifically, the friction ring 32 includes a circular ring 321 and a mounting shaft 322. The circular ring 321 and the mounting shaft 322 can rotate relative to each other, and there is resistance during rotation. The circular ring 321 is concentrically fixedly connected to the third mounting hole 313 of the reset plate 31, wherein the mounting hole 313 is a clearance hole to prevent the mounting shaft 322 from contacting the reset plate 31. The mounting shaft 322 is fixedly connected to the mounting hole 343 of the front lower connecting plate 34, so that the friction ring 32 can be tightly combined with the reset plate 31 and work together. Furthermore, the front lower connecting plate 34 is rotatably connected to the seat cushion base 4, so that the front lower connecting plate 34 can move relative to the seat cushion base 4, thereby realizing the adjustment of the seat cushion tilt angle.
[0034] The detonator 33 is disposed on the outer side of the front lower connecting plate 34 and connected to the front lower connecting plate 34. Specifically, the detonator 33 includes a detonator body 331 and a pin 332. The detonator body 331 has a fixing hole and is fixed to the front lower connecting plate 34 by screws passing through the fixing hole, ensuring that the detonator 33 can be stably installed on the front lower connecting plate 34. One end of the pin 332 is disposed in the accommodating cavity of the detonator body 331, and the other end extends outward and passes through the pin hole 342 of the front lower connecting plate 34 to connect with the reset plate 31. When the detonator 33 receives a trigger signal, the pin 332 will be pulled out from the reset plate 31. At this time, the reset plate 31 and the front lower connecting plate 34 are rotatably connected through the friction ring 32. Under the action of vehicle collision impact, the reset plate 33 overcomes the resistance of the friction ring 32 to rotate, realizes the rapid reset of the seat cushion tilt angle, and absorbs the impact energy.
[0035] Furthermore, the front lower connecting plate 34 is also provided with a hinge hole 341, which is rotatably connected to the seat base 4.
[0036] Working principle:
[0037] When the vehicle is in normal driving condition, the zero-gravity seat cushion tilt angle reset adjustment mechanism is in standby mode. At this time, the pin 332 passes through the front lower connecting plate 34 and is tightly connected to the reset plate 31, so that the front upper connecting plate 2, the reset plate 31, the front lower connecting plate 34, and the seat cushion frame 1 form a relatively stable structure, ensuring that the seat cushion tilt angle remains stable after adjustment. Once a vehicle collision occurs, the detonator 33 will immediately activate upon receiving a trigger signal and retract the pin 332, thereby pulling the pin 332 out of the reset plate 31. This releases the fixed connection between the reset plate 31 and the front lower connecting plate 34. At this time, the reset plate 31 and the front lower connecting plate 34 change from a fixed connection via the pin 332 to a rotational connection via the friction ring. Under the impact of a vehicle collision, the friction ring 32 can be rotated to overcome its resistance, and under the weight of the human body and the seat, the front upper connecting plate 2... Moving downwards, since the ring 321 is fixedly connected to the reset plate 31, and the mounting shaft 322 is fixedly connected to the lower front connecting plate 34, and the ring (321) and the mounting shaft (322) can rotate relative to each other, when the upper front connecting plate 2 applies downward pressure, the lower front connecting plate 34 can rotate relative to the reset plate 31, thereby enabling the upper front connecting plate 2 to move downwards as a whole, thereby driving the seat frame 1 to rotate rapidly around its hinge point with the seat base 4, realizing rapid reset of the seat tilt angle, and effectively absorbing impact energy.
[0038] In this first embodiment, the zero-gravity seat cushion tilt angle reset adjustment mechanism provided by this application includes a seat cushion frame, a front upper connecting plate, a reset assembly, and a seat cushion base. A detonator drives the pin to retract, thereby changing the connection between the reset plate and the front lower connecting plate from a fixed connection via the pin to a rotational connection via the friction ring. This allows the front lower connecting plate and the reset plate to rotate relative to each other. In the event of a collision, under the pressure of the human body and the seat frame, the front upper connecting plate can move downwards as a whole, causing the seat cushion frame to rotate rapidly around its hinge point with the seat cushion base, completing the rapid reset of the seat tilt angle. This ensures that the seat belt can effectively restrain the occupant's body again, preventing forward lurching due to inertia, greatly reducing the risk of injury to the occupant in an accident, improving the safety of the zero-gravity seat in emergency situations, and achieving a synergistic improvement in "comfort and safety." The friction ring provides a certain degree of buffering, energy absorption, and guidance during the seat cushion tilt angle reset process, ensuring a smooth and reliable reset. Compared with existing technologies, the solution provided in this application can automatically and quickly restore the seat cushion tilt angle, ensure the effective restraint of the seat belt on the occupant, improve the safety of the zero-gravity seat in emergency situations, achieve a synergistic improvement in "comfort and safety", and effectively enhance the user experience.
[0039] Example 2
[0040] Corresponding to the aforementioned zero-gravity seat cushion tilt angle reset adjustment mechanism, this application proposes an automotive seat; please refer to [link to relevant documentation]. Figures 1-6 Specifically:
[0041] Based on the structure of Embodiment 1 above, the car seat provided in Embodiment 2 of this application includes the aforementioned zero-gravity seat cushion tilt angle reset adjustment mechanism.
[0042] The specific structure of the zero-gravity seat cushion tilt angle reset adjustment mechanism is detailed in Embodiment 1 above, and will not be repeated here.
[0043] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0044] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A zero-gravity seat cushion tilt angle reset adjustment mechanism, characterized in that, It includes a seat frame (1), a front upper connecting plate (2), a reset assembly (3), and a seat base (4); The seat frame (1) is located above the seat base (4), and one end is rotatably connected to the seat base (4); The front upper connecting plate (2) is located at the bottom end of the seat cushion frame (1) and is rotatably connected to the seat cushion frame (1); The reset component (3) is disposed between the seat frame (1) and the seat base (4), and is rotatably connected to the front upper connecting plate (2) and the seat base (4) respectively. It is used to adjust the relative position of the front upper connecting plate (2) and the seat base in an emergency to achieve a quick reset of the seat tilt angle.
2. The zero-gravity seat cushion tilt angle reset adjustment mechanism according to claim 1, characterized in that, The reset assembly (3) includes a reset plate (31), a friction ring (32), an initiator (33), and a front lower connecting plate (34); The reset plate (31) is rotatably connected to the front upper connecting plate (2); The friction ring (32) is fixedly connected to the reset plate (31); The front lower connecting plate (34) is sleeved on the friction ring (32) and is movably connected to the seat base (4); The detonator (33) is located on the outside of the front lower connecting plate (34) and is connected to the front lower connecting plate (34).
3. The zero-gravity seat cushion tilt angle reset adjustment mechanism according to claim 2, characterized in that, The reset plate (31) is provided with a first mounting hole (311), a second mounting hole (312) and a third mounting hole (313); The first mounting hole (311) is provided at one end of the reset plate (31) for hinge connection with the front upper connecting plate (2); The second mounting hole (312) is located on the protruding edge of the reset plate (31) and is used to connect the detonator (33); The third mounting hole (313) is a clearance hole, which is located on the arc side of the reset plate (31) and is used to connect the friction ring (32).
4. The zero-gravity seat cushion tilt angle reset adjustment mechanism according to claim 3, characterized in that, The friction ring (32) includes a ring (321) and a mounting shaft (322); The ring (321) and the mounting shaft (322) can rotate relative to each other, and there is resistance when they rotate; The ring (321) is concentrically fixedly connected to the third mounting hole (313) of the reset plate (31), and the third mounting hole (313) is used to prevent the mounting shaft (322) from contacting the reset plate (31). The mounting shaft (322) is fixedly connected to the mounting hole (343) of the front lower connecting plate (34).
5. The zero-gravity seat cushion tilt angle reset adjustment mechanism according to claim 2, characterized in that, The detonator (33) includes a detonator body (331) and a pin (332); The detonator body is provided with a fixing hole and is fixed to the front lower connecting plate (34) by screws passing through the fixing hole; One end of the pin (332) is disposed in the accommodating cavity of the detonator body (331), and the other end extends outward and passes through the pin hole (342) of the front lower connecting plate (34) to connect with the reset plate (31).
6. The zero-gravity seat cushion tilt angle reset adjustment mechanism according to claim 2, characterized in that, The front lower connecting plate (34) is also provided with a hinge hole (341); The hinge hole (341) is rotatably connected to the seat base (4).
7. A car seat, characterized in that, Includes the zero-gravity seat cushion tilt angle reset adjustment mechanism as described in any one of claims 1-6.