A posture-deformable three-row seat

Abstract

This utility model discloses a three-row seat with deformable posture, including a seat cushion and a backrest. The seat cushion includes two parallel guide rails and a movable rail slidably mounted on the guide rails. An unlocking structure is installed on the guide rails to restrict the movement of the movable rail. Two brackets are installed on the side of the movable rail away from the backrest, and both brackets are connected to the seat cushion frame via a first angle adjuster. Two locking structures are installed on the end of the seat cushion frame away from the first angle adjuster, each connected to one of the two movable rails. This utility model has a simple structure. By setting the sliding cooperation between the guide rails and the movable rails, combined with the synergistic effect of the unlocking structure and the first angle adjuster, the seat cushion frame can be smoothly folded down, while providing ample space for the backrest to be fully folded flat. This structural design effectively reduces the overall height of the seat after folding, saves vertical space in the vehicle, and improves space utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically a three-row seat with a deformable posture. Background Technology

[0002] In existing multi-row vehicles, to improve interior space flexibility and passenger comfort, the third-row seats are typically designed as foldable or flip-up structures to meet the needs of converting between cargo space and passenger seating. Common third-row seat structures include a seat cushion and backrest connected by hinges, where the backrest can be flipped forward and laid flat to form a flat cargo surface with the seat cushion, thereby expanding the trunk space.

[0003] However, existing technologies have several drawbacks. First, seat cushions typically only allow for slight folding and cannot rotate 180° forward around their front end, limiting the seat's storage flexibility and space utilization efficiency. Second, due to the limited folding angle of the seat cushions, the space behind the second-row seats is not fully utilized, resulting in wasted space when loading large items. Furthermore, the folding process of the backrest and seat cushion usually requires significant vertical space within the vehicle, and the seats are prone to interfering with the roof or overhead components during folding, affecting operational convenience and limiting the optimal layout of the vehicle's interior space. Therefore, a three-row seat with a deformable posture is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a three-row seat with a deformable posture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-row seat with deformable posture, including a seat cushion and a backrest. The seat cushion includes two parallel guide rails and a movable rail slidably mounted on the guide rails. An unlocking structure that restricts the movement of the movable rail is installed on the guide rails. Two brackets are installed on the side of the movable rail away from the backrest. Both brackets are connected to the seat cushion frame through a first angle adjuster. Two locking structures that are respectively connected to the two movable rails are installed at the end of the seat cushion frame away from the first angle adjuster.

[0006] As a further embodiment of this utility model: the backrest includes two support frames, which are mounted on the vehicle body, and the two support frames are connected to the backrest frame through two second angle adjusters.

[0007] As a further embodiment of this utility model: a seat cushion cover and a backrest cover are respectively installed on the seat cushion frame and the backrest frame.

[0008] As a further embodiment of this utility model, a first cable is installed on the unlocking structure, the first angle adjuster, and the locking structure.

[0009] As a further embodiment of this utility model: the second angle adjuster is connected to the second cable.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This application achieves smooth folding of the seat cushion frame by setting up a sliding engagement between the guide rail and the movable rail, combined with the synergistic effect of the unlocking structure and the first angle adjuster, while providing ample space for the backrest to be fully folded flat. This structural design effectively reduces the overall height of the seat after folding, saving vertical space in the vehicle and improving space utilization efficiency. At the same time, by rationally arranging the movable rail and the angle adjustment mechanism, it can maximize the use of the space behind the second-row seats, significantly improving the flexibility and functionality of the interior space. In addition, this structure allows the seat cushion and backrest of the third-row seats to transition flush with the trunk floor after folding down, forming a flat and continuous loading surface, greatly facilitating the placement and retrieval of items, and improving the vehicle's storage convenience and space expansion capabilities. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three rows of seats of this utility model;

[0013] Figure 2 This is a side view of the three rows of seats of this utility model;

[0014] Figure 3 This is a schematic diagram showing two states of the three rows of seats of this utility model;

[0015] In the diagram: 100, seat cushion; 101, guide rail; 102, movable rail; 103, unlocking mechanism; 104, bracket; 105, first angle adjuster; 106, seat cushion frame; 107, locking mechanism;

[0016] 200. Backrest; 201. Support frame; 202. Backrest frame; 203. Second angle adjuster. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3In this embodiment of the present invention, a three-row seat with deformable posture includes a seat cushion 100 and a backrest 200. The seat cushion 100 includes two parallel guide rails 101 and a movable rail 102 slidably mounted on the guide rails 101. An unlocking structure 103 restricting the movement of the movable rail 102 is installed on the guide rails 101. Two brackets 104 are installed on the side of the movable rail 102 away from the backrest 200. Both brackets 104 are connected to the seat cushion frame 106 through a first angle adjuster 105. Two locking structures 107, respectively connected to the two movable rails 102, are installed at the end of the seat cushion frame 106 away from the first angle adjuster 105.

[0019] Specifically, two guide rails 101 are fixed to the vehicle body with bolts. Each guide rail 101 is equipped with a movable rail 102 inside. The movable rail 102 can reciprocate along the length of the guide rail 101. The unlocking structure 103 is installed on the inside of the guide rail 101. Its default state is locked, ensuring a stable connection between the guide rail 101 and the movable rail 102. When the unlocking structure 103 is activated, the position of the movable rail 102 can be adjusted, so that the seat cushion frame 106 moves away from the backrest 200 along with the movable rail 102, thereby creating space between the seat cushion frame 106 and the support frame 201 so that the backrest frame 202 can be laid flat.

[0020] Next, the first adjuster 105 is unlocked, allowing the seat cushion 106 to rotate 180 degrees away from the backrest 200 and lie flat. At the same time, the backrest 200 can also be unlocked, flipped forward, and locked, ultimately achieving a completely flat state between the seat cushion 100 and the backrest 200. This series of operations provides a conversion function from a seat to a flat surface, increasing the flexibility and comfort of use, forming a flat and continuous loading plane, which greatly facilitates the placement and retrieval of items, improves the vehicle's storage convenience and space expansion capabilities, and the overall structure is easy to operate, runs smoothly, and is highly reliable. It takes into account both riding comfort and loading practicality, meets users' needs for multi-functional and multi-scenario vehicle use, and has good practical value and market application prospects.

[0021] Please see Figure 1 In one embodiment, preferably, the backrest 200 includes two support frames 201, which are mounted on the vehicle body, and the two support frames 201 are connected to the backrest frame 202 through two second angle adjusters 203.

[0022] Specifically, two support frames 201 are installed parallel to each other on the vehicle body. The second angle adjuster 203 is in a locked state by default, so that the relative position between the backrest frame 202 and the support frame 201 is fixed. The second angle adjuster 203 is connected to the second cable. By pulling the second cable, the second angle adjuster 203 can be unlocked. After unlocking, the backrest 200 can be rotated forward and flattened, and then automatically locked to complete the folding operation (the principle of the second cable and the second angle adjuster 203 is existing technology, which is well known to those skilled in the art, and is described in patent documents such as patent number CN207388985U).

[0023] Please see Figure 1 In one embodiment, preferably, the seat cushion frame 106 and the backrest frame 202 are respectively equipped with seat cushion covers and backrest covers, which can effectively wrap multiple components and further improve riding comfort.

[0024] Please see Figure 1 In one embodiment, preferably, the unlocking structure 103, the first angle adjuster 105, and the locking structure 107 are all equipped with a first pull cable. Furthermore, the unlocking structure 103, the first angle adjuster 105, and the locking structure 107 are all unlocked by the first pull cable (the principle of unlocking by the first pull cable is existing technology, which will not be elaborated on here, and is described in patent documents such as patent numbers CN220314788U, CN118544908A, CN218702868U, and CN207388979U).

[0025] Working principle and usage process of this utility model:

[0026] When the seat needs to be switched from a sitting position to a reclining position, first pull the first cable connected to the locking structure 107 to unlock the seat cushion frame 106. Then pull the first cable connected to the first angle adjuster 105 to unlock the first angle adjuster 105, allowing the seat cushion frame 106 to flip 180 degrees and lie flat. Then release the first cable to return the first angle adjuster 105 to the locked position. Next, pull the first cable connected to the unlocking structure 103 to unlock the unlocking structure 103. At this time, the movable rail 102 in the guide rail 101 can move. After the movable rail 102 has moved to the correct position, release the first cable to return the unlocking structure 103 to the locked position and lock the movable rail 102 in the guide rail 101. Finally, pull the second cable to unlock the second angle adjuster 203. After unlocking, the backrest 200 can rotate forward and lie flat, and then automatically lock, completing the folding operation so that both the seat cushion cover and the backrest cover are in a reclining position.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0028] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A posture-deformable three-row seat including a seat cushion (100) and a backrest (200), characterized by, The seat cushion (100) includes two parallel guide rails (101) and a movable rail (102) slidably mounted on the guide rails (101). The guide rails (101) are equipped with an unlocking structure (103) that restricts the movement of the movable rail (102). Two brackets (104) are installed on the side of the movable rail (102) away from the backrest (200). Both brackets (104) are connected to the seat cushion frame (106) through a first angle adjuster (105). Two locking structures (107) are installed at the end of the seat cushion frame (106) away from the first angle adjuster (105) and respectively connected to the two movable rails (102).

2. The posture-deformable three-row seat according to claim 1, characterized in that, The backrest (200) includes two support frames (201), which are mounted on the vehicle body and connected to the backrest frame (202) via two second angle adjusters (203).

3. The posture-deformable three-row seat according to claim 2, characterized in that, The seat cushion frame (106) and backrest frame (202) are respectively equipped with seat cushion covers and backrest covers.

4. The posture-deformable three-row seat according to claim 1, characterized in that, The first cable is installed on the unlocking structure (103), the first angle adjuster (105) and the locking structure (107).

5. The posture-deformable three-row seat according to claim 2, characterized in that, The second angle adjuster (203) is connected to the second cable.

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