Middle-row 1 +1 seat framework
By reinforcing the structure of the right seat back frame in the middle row 1+1 seat frame, the problem of seats in small vehicles being prone to breakage in zero-gravity posture has been solved, thus improving stability and safety.
Patent Information
- Application Number
- CN202520553896.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The existing 1+1 seat frame in the middle row is prone to breakage in zero gravity in small vehicles, posing a safety hazard.
The right chair backrest frame is reinforced by incorporating a lower shoulder support, an upper shoulder support, and an outer reinforcing plate on the backrest side panel into the right chair backrest frame assembly. Combined with an angle adjuster and a zero-gravity mechanism, this enhances the stability and strength of the connection points.
It improves the stability and safety of the middle row 1+1 seats in zero gravity posture, avoids frame breakage, and is easy to assemble and has a low cost.
Smart Images

Figure CN223835470U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the technical field of automobile seat structure, specifically a middle row 1+1 seat frame. Background Technology
[0002] Car seats are one of the most important components inside a car, primarily used to provide a comfortable and safe ride for passengers. They mainly consist of seat cushions, backrests, headrests, frames, adjustment mechanisms, and fabrics. The frame is the supporting structure of the seat, usually made of metal materials such as high-strength steel. It bears the weight of the entire seat and the passengers, and provides the mounting base for other seat components. It needs to have sufficient strength and rigidity. Its main functions include seating, safety, and auxiliary functions.
[0003] As competition in the automotive market intensifies, OEMs are adding various features to car seats. Due to the limited space in car bodies, and to accommodate zero-gravity seats, the left middle row seat features a two-way backrest and two-way seat cushion, while the right middle row seat features a two-way backrest and zero-gravity seat cushion. Since the seatbelt anchor points on the right seat frame are all on the frame itself, the right seat back frame must possess greater stability compared to the front frame. The frame must be able to withstand the tension exerted by the seatbelt during normal wearing and adjustment. For example, when a passenger fastens the seatbelt, the frame at the anchor points should not exhibit significant deformation. Furthermore, during vehicle operation, even when subjected to road bumps or other external forces... Under the influence of force, the frame must remain stable to ensure the relative stability of the seat belt anchor points. In emergency situations such as vehicle collisions and sudden braking, the seat belts will withstand enormous impact forces. The frame must have sufficient strength to withstand these instantaneous forces, ensuring that the anchor points do not break or loosen, thereby effectively restraining occupants and reducing injuries. The strength of the frame must also meet the load-bearing capacity under zero-gravity conditions. Currently, for the 1+1 frame in the middle row, which is suitable for environments with smaller vehicle bodies, the materials and volume of the frame are strictly limited, resulting in insufficient strength. Under zero-gravity conditions, there is sometimes a risk of frame breakage in the event of a sudden situation, posing certain safety hazards. Utility Model Content
[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, this utility model provides a middle-row 1+1 seat frame to solve the technical problem mentioned in the background that the middle-row 1+1 frame in current small vehicles is prone to frame breakage under zero gravity in the event of an emergency.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0006] A 1+1 middle-row seat frame includes a six-seat second-row right seat frame assembly and a six-seat second-row left seat frame assembly. The six-seat second-row right seat frame assembly includes a right seat back frame assembly and a right seat cushion frame assembly, which are hinged together. The right seat back frame assembly includes a right seat back body, on which a lower shoulder support and an upper shoulder support are provided. The lower shoulder support and the upper shoulder support are welded to the right seat back body. The right seat back body also has an outer reinforcing plate for the backrest side panel, an outer side of the backrest side panel, and a reinforcing plate for the backrest side panel.
[0007] Furthermore, the connection points between the right chair backrest frame assembly and the right chair seat cushion frame assembly are provided with the outer side of the upper and lower connecting plates of the adjuster.
[0008] Furthermore, the right chair seat cushion frame assembly includes a side sliding rail and a zero-gravity mechanism, and the side sliding rail and the zero-gravity mechanism are connected by bolts. The zero-gravity mechanism is connected to the upper frame of the right chair seat cushion frame by bolts.
[0009] Furthermore, the six-seat second-row left seat frame assembly includes a left seat back frame assembly and a left seat cushion frame assembly.
[0010] Furthermore, the left chair back frame assembly includes a left chair back body, on which an inner backrest side plate reinforcing plate and a backrest side plate support wire are provided.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This utility model, through the design of the right seat backrest body, lower shoulder support, upper shoulder support, outer reinforcing plate of the backrest side panel, outer side of the backrest side panel, upper connecting plate of the angle adjuster, outer side of the lower connecting plate reinforcing plate, and backrest side panel reinforcing plate, strengthens the structure of the middle row 1+1 frame in a small vehicle environment, improves its pressure resistance, ensures passenger stability and safety in a zero-gravity, reclining posture, avoids the risk of frame breakage in sudden situations, and is easy to assemble, low in cost, and has certain practical value.
[0013] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the six-seat, second-row right-side chair frame assembly of this utility model;
[0016] Figure 3This is a schematic diagram of the six-seat, second-row left chair frame assembly of this utility model.
[0017] In the diagram: 1. Six-seat second-row right chair frame assembly; 11. Right chair backrest frame assembly; 111. Right chair backrest body; 112. Shoulder lower support; 113. Shoulder upper support; 114. Backrest side panel outer reinforcement plate; 115. Backrest side panel outer side; 116. Adjuster upper connecting plate; 117. Lower connecting plate reinforcement plate outer side; 118. Backrest side panel reinforcement plate; 12. Right chair seat cushion frame assembly; 121. Side sliding rail; 122. Zero gravity mechanism; 123. Right chair seat cushion frame upper frame; 2. Six-seat second-row left chair frame assembly; 21. Left chair backrest frame assembly; 211. Left chair backrest body; 212. Inner backrest side panel reinforcement plate; 213. Backrest side panel support wire; 22. Left chair seat cushion frame assembly. Detailed Implementation
[0018] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.
[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0021] Please refer to the appendix carefully. Figure 1-3A 1+1 middle-row seat frame includes a six-seat second-row right seat frame assembly 1 and a six-seat second-row left seat frame assembly 2. The six-seat second-row right seat frame assembly 1 includes a right seat back frame assembly 11 and a right seat cushion frame assembly 12, which are hinged together. The right seat back frame assembly 11 includes a right seat back body 111, on which a lower shoulder support 112 and an upper shoulder support 113 are provided. The lower shoulder support 112 and the upper shoulder support 113 are welded to the right seat back body 111. The right seat back body 111 also has an outer reinforcing plate 114, an outer side 115, and a reinforcing plate 118 on the backrest side panel.
[0022] The above structure strengthens the 1+1 frame of the middle row in smaller vehicle environments, improving its pressure resistance. It ensures passenger stability and safety when the vehicle is reclined significantly in zero gravity, avoiding the risk of frame breakage in emergencies. It is also easy to assemble, has low cost, and has certain practical value.
[0023] Please refer to the appendix carefully. Figure 2 and attached Figure 3 The connection point between the right chair backrest frame assembly 11 and the right chair seat cushion frame assembly 12 is provided with an upper connecting plate 116 and an outer side 117 of the lower connecting plate reinforcing plate. The outer side 117 of the lower connecting plate reinforcing plate strengthens the connection structure. The right chair seat cushion frame assembly 12 includes a side sliding rail 121 and a zero-gravity mechanism 122, which are bolted together. The zero-gravity mechanism 122 is bolted to the upper frame 123 of the right chair seat cushion frame, allowing the upper frame 123 to slide forward and backward, slide sideways, and lift in zero gravity. A relatively large zero-gravity posture is required. Due to the limited space within the vehicle body, the seat cannot recline directly backward. Therefore, a side-sliding function is required, allowing the right-side seat to slide inward first and then recline significantly backward to achieve a zero-gravity posture. The six-seat second-row left seat frame assembly 2 includes a left seat back frame assembly 21 and a left seat cushion frame assembly 22. The left seat back frame assembly 21 includes a left seat back body 211, which is equipped with an inner backrest side panel reinforcing plate 212 and a backrest side panel support wire 213. The inner backrest side panel reinforcing plate 212 and the backrest side panel support wire 213 strengthen the structure of the left seat back body 211.
[0024] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.
Claims
1. A middle-row 1+1 seat frame, comprising a six-seat second-row right seat frame assembly (1) and a six-seat second-row left seat frame assembly (2), characterized in that, The six-seat second-row right chair frame assembly (1) includes a right chair back frame assembly (11) and a right chair seat cushion frame assembly (12). The right chair back frame assembly (11) and the right chair seat cushion frame assembly (12) are hinged together. The right chair back frame assembly (11) includes a right chair back body (111). The right chair back body (111) is provided with a lower shoulder support (112) and an upper shoulder support (113). The lower shoulder support (112) and the upper shoulder support (113) are welded to the right chair back body (111). The right chair back body (111) is also provided with a backrest side panel outer reinforcement plate (114), a backrest side panel outer (115), and a backrest side panel reinforcement plate (118).
2. The middle row 1+1 seat frame according to claim 1, characterized in that, The connection points of the right chair back frame assembly (11) and the right chair seat cushion frame assembly (12) are provided with an upper connecting plate (116) for the angle adjuster and an outer side (117) for the lower connecting plate reinforcement plate.
3. A middle-row 1+1 seat frame according to claim 2, characterized in that, The right chair seat cushion frame assembly (12) includes a side sliding rail (121) and a zero gravity mechanism (122), and the side sliding rail (121) and the zero gravity mechanism (122) are connected by bolts. The zero gravity mechanism (122) is connected to the upper frame (123) of the right chair seat cushion frame by bolts.
4. The middle row 1+1 seat frame according to claim 1, characterized in that, The six-seat second-row left seat frame assembly (2) includes a left seat back frame assembly (21) and a left seat cushion frame assembly (22).
5. A middle-row 1+1 seat frame according to claim 4, characterized in that, The left chair back frame assembly (21) includes a left chair back body (211), on which an inner back panel reinforcement plate (212) and a back panel support wire (213) are provided.