Automobile seat cushion framework structure

By using an electric slide rail and a motor-driven seat frame structure, the problem of micro-cracks caused by stress concentration at the spring fixing point in the traditional seat cushion chassis is solved, enabling multi-dimensional adjustment and improved comfort of the seat.

CN224145813UActive Publication Date: 2026-04-21NINGBO JIAFENG AUTO PARTS GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO JIAFENG AUTO PARTS GROUP CO LTD
Filing Date
2025-06-06
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In traditional car seat cushion spring systems, the seat cushion chassis is prone to micro-cracks due to long-term stress on the spring fixing points, which can lead to chassis deformation or damage, increase seat weight, and reduce comfort.

Method used

The side panels are moved back and forth using electric slide rails and motors. The load is distributed through the synergistic effect of the mounting plate and the seat cushion chassis. Combined with the height adjustment mechanism, the seat can be adjusted back and forth and in height. A fan is installed on the seat cushion chassis for ventilation.

Benefits of technology

It effectively disperses the load on the seat cushion spring connection points, preventing the formation of micro-cracks, while also enabling multi-dimensional adjustment and improved comfort of the seat.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile seat cushion framework structure which comprises side plates arranged oppositely, a first connecting rod is fixedly arranged on the front portion between the two side plates, a second connecting rod is fixedly arranged on the rear portion between the two side plates, electric sliding rails connected with an automobile carrier are arranged at the bottoms of the side plates, a motor is arranged on the upper sides of the electric sliding rails, and the motor is connected with the automobile carrier. The side plate can be driven by the motor to horizontally move back and forth; a first connecting plate is hinged to the front portion of the electric sliding rail, the upper portion of the first connecting plate is hinged to the side plate, and a second connecting plate and a rotating part are hinged to the rear portion of the electric sliding rail; the cushion chassis is detachably arranged on the upper side of the front part of the side plate; and the mounting plate is fixedly arranged on the lower side of the middle part of the first connecting rod. The utility model can solve the problem that the existing cushion spring is directly fixed on the cushion base plate and the connecting rod, and the spring fixing point of the cushion base plate bears stress for a long time, so that micro cracks are easily generated at the joint.
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Description

Technical Field

[0001] This utility model relates to the field of seat cushion frames, specifically a car seat cushion frame structure. Background Technology

[0002] In automotive seat design, traditional seat cushion spring systems typically employ a rigid fixing method, directly fixing both ends of coil or serpentine springs to the seat cushion chassis and connecting rods. This design requires the seat cushion chassis to possess sufficient strength and rigidity to withstand and distribute the spring pressure; otherwise, it can easily lead to chassis deformation or damage. However, to meet strength requirements, the seat cushion chassis often needs to use thicker or more robust materials, which increases the overall weight of the seat and reduces the cushion's softness and comfort. To solve these problems, the seat cushion frame needs to be improved. Utility Model Content

[0003] This utility model provides a car seat cushion frame structure that can solve the problem that existing seat cushion springs are directly fixed to the seat cushion chassis and connecting rod, and the seat cushion chassis spring fixing point is prone to micro-cracks at the connection due to long-term stress.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a car seat cushion frame structure, including opposing side plates, a first connecting rod fixedly disposed at the front of the two side plates, and a second connecting rod fixedly disposed at the rear. An electric slide rail connected to the car carrier is disposed at the bottom of each side plate, and a motor is disposed on the upper side of the electric slide rail, which drives the side plates to move horizontally back and forth. A first connecting plate is hinged to the front of the electric slide rail, and the upper part of the first connecting plate is hinged to the side plate. A second connecting plate and a rotating part are respectively hinged to the rear of the electric slide rail, and both the second connecting plate and the rotating part are hinged to the second connecting rod. A seat base is detachably mounted on the upper front side of the side panel; a mounting plate is fixedly mounted on the lower middle side of the first connecting rod. The mounting plate includes a mounting plate body, with extensions on both sides of the mounting plate body. The extensions extend rearward and are folded over. A connecting part connected to the second connecting rod is vertically arranged on the upper front side of the extension. Multiple first mounting holes are provided on the rear side of the extension. Through the synergistic effect of the seat base and the mounting plate, the load-bearing capacity of the seat spring connection part is distributed. The seat can be adjusted forward and backward by setting an electric slide rail. The seat height can be adjusted by the first connecting plate, the second connecting plate, and the rotating part.

[0005] As a supplement to this technical solution, the motor is connected to the electric slide rail via a mounting bracket, and the motor is fixed by the mounting bracket, which facilitates the installation of the motor.

[0006] As a supplement to this technical solution, the extension is provided with reinforcing ribs arranged along the curved surface, which increases the structural strength of the extension.

[0007] As a supplement to this technical solution, the extension is provided with first flanges formed by bending upwards on both sides and the rear side, and the first flanges increase the overall structural strength of the mounting plate.

[0008] As a supplement to this technical solution, the two sides of the mounting plate body are provided with a second flange formed by bending upwards, and the front side of the mounting plate body is provided with a third flange formed by bending upwards. The second flange and the third flange increase the overall structural strength of the mounting plate.

[0009] As a supplement to this technical solution, the first connecting rod is provided with a first support plate on both sides of the mounting plate, which is connected to the seat base. The first support plate is used to fix the seat base.

[0010] As a supplement to this technical solution, a second support plate connected to the seat base is provided on the inner front side of the side plate. The second support plate is used to connect the seat base and the side plate.

[0011] As a supplement to this technical solution, a rectangular recess is provided in the middle of the upper end surface of the seat base. A through hole is provided at the bottom of the rectangular recess, and multiple second mounting holes are provided on the outer periphery of the through hole. An air fan is installed in the rectangular recess, and the air fan is quickly matched and connected through the second mounting holes. At the same time, the through hole is provided to realize airflow.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By utilizing the synergistic effect of the seat cushion base and mounting plate, the load-bearing capacity of the seat cushion spring connection points is distributed. Ventilation of the seat cushion is achieved through a fan installed in a rectangular recess. An electric motor drives an electric slide rail, causing the side panels to move horizontally forward and backward, enabling the seat's fore-and-aft adjustment. Seat height adjustment is achieved through the first connecting plate, the second connecting plate, and the rotating part. This solution addresses the problem of existing seat cushion springs being directly fixed to the seat cushion base and connecting rod, which can easily lead to micro-cracks at the connection points due to long-term stress on the spring fixing points. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 These are three-dimensional structural diagrams of the present invention from different angles;

[0016] Figure 3 This is a top view of the present invention;

[0017] Figure 4 This is a side view of the present invention;

[0018] Figure 5 This is a three-dimensional structural diagram of the seat cushion base of this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the mounting plate of this utility model.

[0020] Figure label:

[0021] 1. Side plate; 2. First connecting rod; 3. Second connecting rod; 4. Electric slide rail; 5. Motor; 6. First connecting plate; 7. Second connecting plate; 8. Rotating part; 9. Seat base; 10. Mounting plate; 11. Mounting bracket; 12. First support plate; 13. Second support plate; 14. Fixed bracket; 91. Rectangular recess; 92. Through hole; 93. Second mounting hole; 101. Mounting plate body; 102. Extension; 103. Connecting part; 104. First mounting hole; 105. Reinforcing rib; 106. First flange; 107. Second flange; 108. Third flange. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] like Figure 1-6As shown, this utility model addresses the problem that existing seat cushion springs, directly fixed to the seat cushion base and connecting rod, are prone to micro-cracks at the connection point due to long-term stress. The present invention provides the following technical solution: A car seat cushion frame structure includes opposing side plates 1, forming the two side frames of the seat. A first connecting rod 2 is fixedly installed at the front between the two side plates 1, and a second connecting rod 3 is fixedly installed at the rear. The first connecting rod 2 and the second connecting rod 3 are cylindrical tubes. The two ends of the first connecting rod 2 and the second connecting rod 3 are welded and fixed to the seat frame side plates 1 respectively. The bottom of the side plates 1 is provided with... The vehicle includes an electric slide rail 4 connected to the vehicle body. This electric slide rail 4 is existing technology and can be referenced to the structure of patents "CN113147527B" or "CN206938516U". A motor 5 is mounted on the upper side of the electric slide rail 4, which drives the side plate 1 to move horizontally back and forth, enabling the electric adjustment of the vehicle seat. A first connecting plate 6 is hinged to the front of the electric slide rail 4, and the upper part of the first connecting plate 6 is hinged to the side plate 1. A second connecting plate 7 and a rotating part 8 are respectively hinged to the rear of the electric slide rail 4. Both the second connecting plate 7 and the rotating part 8 are connected to the second connecting plate 1. The rod 3 is hinged; the seat base 9 is detachably mounted on the upper front side of the side plate 1; the mounting plate 10 is welded and fixed to the lower middle side of the first connecting rod 2. The mounting plate 10 adopts a stamped sheet metal structure. The mounting plate 10 includes a mounting plate body 101. Extensions 102 are arranged opposite each other on both sides of the mounting plate body 101. The extensions 102 extend rearward and are folded over. A connecting part 103 connected to the second connecting rod 3 is vertically arranged on the upper front of the extension 102. The connecting part 103 has a notch that matches the second connecting rod 3 for easy connection. The rear side of the extension 102 is provided with a plurality of first mounting holes 104. The seat cushion spring is fixed in the first mounting holes 104 and the mounting holes on the seat cushion base 9. Through the synergistic action of the seat cushion base 9 and the mounting plate 10, the load-bearing capacity of the seat cushion spring connection part is distributed. The height adjustment of the seat is realized through the first connecting plate 6, the second connecting plate 7 and the rotating part 8. A gear is installed on the rear part of the side plate 1 near the rotating part 8. The gear meshes with the rotating part 8. When the gear is driven by a motor or driven by an existing manual seat height adjuster, the side plate 1 moves forward and upward to realize the height adjustment of the seat.

[0024] In this embodiment, as Figure 2 As shown, the motor 5 is connected to the electric slide rail 4 via the mounting bracket 11, and the motor 5 is fixed by the mounting bracket 11, which facilitates the installation of the motor 5.

[0025] In this embodiment, as Figure 6As shown, the extension 102 is provided with reinforcing ribs 105 arranged along the curved surface, which increases the structural strength of the extension 102.

[0026] In this embodiment, as Figure 6 As shown, the extension 102 has a first flange 106 formed by bending upwards on both sides and the rear side. The first flange 106 increases the overall structural strength of the mounting plate 10.

[0027] In this embodiment, as Figure 6 As shown, the mounting plate body 101 has a second flange 107 formed by bending upward on both sides, and a third flange 108 formed by bending upward on the front side of the mounting plate body 101. The second flange 107 and the third flange 108 increase the overall structural strength of the mounting plate 10.

[0028] In this embodiment, as Figure 2 As shown, the first connecting rod 2 is provided with first support plates 12 on both sides of the mounting plate 10, which are connected to the seat base 9. The first support plates 12 are used to fix the seat base 9. The first support plates 12 are welded to the first connecting rod 2. The first support plates 12 are provided with notches that match the first connecting rod 2 for easy docking. The first support plates 12 and the seat base 9 are fixed by bolts. The front inner side of the side plate 1 is provided with a second support plate 13 connected to the seat base 9. The second support plate 13 is used to connect the seat base 9 and the side plate 1.

[0029] In this embodiment, as Figure 5 As shown, a rectangular recess 91 is provided in the middle of the upper end surface of the seat base 9. A through hole 92 is provided at the bottom of the rectangular recess 91. Four second mounting holes 93 are provided on the outer periphery of the through hole 92. An air fan is installed at the rectangular recess 91. The air fan is quickly matched and connected through the second mounting holes 93. At the same time, the through hole 92 is provided to realize airflow.

[0030] In this embodiment, as Figure 1 As shown, in order to facilitate the installation of the first connecting plate 6, the second connecting plate 7 and the rotating part 8 and to ensure the connection strength, a fixing bracket 14 is fixed at both ends of each electric slide rail 4. The fixing bracket 14 is fixed to the electric slide rail 4 by means of welding, riveting or bolting, etc. The fixing bracket 14 is respectively hinged to the corresponding first connecting plate 6, second connecting plate 7 and rotating part 8.

[0031] In this embodiment, as Figure 1As shown, the side plate 1 is welded to the first connecting rod 2 and the second connecting rod 3. The mounting plate 10 is welded to the middle of the first connecting rod 2. The first support plate 12 is welded to the first connecting rod 2 and located on both sides of the mounting plate 10. The second support plate 13 is fixed to the inner side of the side plate 1 by bolts. The fixing bracket 14 is fixed to the electric slide rail 4. The fixing bracket 14 is respectively hinged to the bottom of the corresponding first connecting plate 6, second connecting plate 7 and rotating part 8. The top of the first connecting plate 6, second connecting plate 7 and rotating part 8 are respectively hinged to the side plate 1 and the second connecting rod 3. The seat base 9 is fixed to the first support plate 12 and the second support plate 13. One end of the seat spring is fixed in the first mounting hole 104 and the mounting hole on the seat base 9. The other end of the seat spring is fixed to the second connecting rod 3.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A car seat cushion frame structure, characterized in that, include: The two side plates (1) are arranged opposite each other. A first connecting rod (2) is fixedly arranged at the front and a second connecting rod (3) is fixedly arranged at the rear. An electric slide rail (4) connected to the vehicle carrier is arranged at the bottom of the side plate (1). A motor (5) is arranged on the upper side of the electric slide rail (4). The motor (5) can drive the side plate (1) to move horizontally back and forth. The front part of the electric slide rail (4) is hinged to a first connecting plate (6), the upper part of which is hinged to the side plate (1). The rear part of the electric slide rail (4) is hinged to a second connecting plate (7) and a rotating part (8), and the second connecting plate (7) and the rotating part (8) are both hinged to the second connecting rod (3). Seat base (9), which is detachably mounted on the upper front part of the side plate (1); The mounting plate (10) is fixedly disposed on the lower middle part of the first connecting rod (2). The mounting plate (10) includes a mounting plate body (101). The mounting plate body (101) has extensions (102) arranged opposite to each other on both sides. The extensions (102) extend to the rear and are folded over. The upper front part of the extension (102) has a connecting part (103) that is connected to the second connecting rod (3) vertically arranged. The rear side of the extension (102) has a plurality of first mounting holes (104).

2. The automobile seat cushion framework structure according to claim 1, characterized by: The motor (5) is connected to the electric slide rail (4) via a mounting bracket (11).

3. The automobile seat cushion framework structure according to claim 1, characterized by: The extension (102) is provided with reinforcing ribs (105) arranged along the curved surface.

4. The automobile seat cushion framework structure according to claim 1, characterized by: The extension (102) is provided with first flanges (106) formed by bending upwards on both sides and the rear side.

5. The automobile seat cushion framework structure according to claim 1, characterized by: The mounting plate body (101) has a second flange (107) formed by bending upward on both sides, and a third flange (108) formed by bending upward on the front side of the mounting plate body (101).

6. The automobile seat cushion framework structure according to claim 1, characterized by: The first connecting rod (2) is provided with a first support plate (12) connected to the seat base (9) on both sides of the mounting plate (10).

7. The automobile seat cushion framework structure according to claim 1, characterized by: The side plate (1) is provided with a second support plate (13) connected to the seat base (9) on the inner front side.

8. The automobile seat cushion framework structure according to claim 1, characterized by: The upper end face of the seat base (9) is provided with a rectangular recess (91), the bottom of the rectangular recess (91) is provided with a through hole (92), and the outer periphery of the through hole (92) is provided with a plurality of second mounting holes (93).

Citation Information

Patent Citations

  • Electric sliding rails for car seats and their transmission methods

    CN113147527B

  • Car seat uses electronic slide rail assembly

    CN206938516U