Multifunctional automobile rear seat framework structure

Abstract

The utility model discloses a multifunctional automobile rear-row seat framework structure, which is characterized in that a backrest lock is arranged at the upper end of a backrest framework assembly, the lower end of the backrest framework assembly is hinged with the upper part of the rear end of a cushion framework assembly, and a fixed bracket assembly is rigidly connected with an automobile body; the seat cushion adjusting mechanism is hinged to the upper portion of the fixing support assembly through a connecting rod mechanism and fixedly connected with the middle or the lower portion of the rear end of the seat cushion framework assembly through an angle adjuster, and a locking mechanism is arranged between the seat cushion adjusting mechanism and the fixing support assembly. The cushion adjusting mechanism can move backwards along the motion trail of the connecting rod mechanism, the backrest lock support is rigidly connected with the vehicle body, the upper end of the backrest lock steel wire is hinged and fixed to the backrest lock support through an elastic piece in a limiting mode, and the lower end of the backrest lock steel wire is hinged and locked to the backrest lock. The multi-mode adjusting device has multiple adjusting modes and can meet diversified requirements of consumers.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, and in particular to a multifunctional automotive rear seat frame structure. Background Technology

[0002] With the development of the automotive industry and the diversification of consumer demands, rear seats in cars are no longer just simple seating spaces, but need to meet more functional needs such as storage, entertainment, and rest. Traditional rear seat frame designs are often single-function and fail to meet the diverse needs of modern consumers. For example, with the rise of self-driving tours and outdoor activities, consumers have increasingly higher requirements for the flexibility and comfort of the car's interior space. Although traditional rear seats can be folded or reclined, they often fail to create a flat, spacious bed, affecting the user's rest experience. Alternatively, the components of traditional rear seat frames cannot be interconnected, making adjustments inconvenient, time-consuming, and laborious. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention aims to provide a multifunctional rear seat frame structure for automobiles, which has multiple adjustment modes to meet the diverse needs of consumers.

[0004] To achieve the above objectives, this utility model proposes a multifunctional automotive rear seat frame structure, including a backrest frame assembly and a seat cushion frame assembly. A backrest lock is installed at the upper end of the backrest frame assembly, and the lower end of the backrest frame assembly is hinged to the upper rear end of the seat cushion frame assembly. The structure also includes a seat cushion adjustment mechanism, a fixed bracket assembly, a backrest lock wire, and a backrest lock bracket. The fixed bracket assembly is rigidly connected to the vehicle body. The seat cushion adjustment mechanism is hinged to the upper part of the fixed bracket assembly via a linkage mechanism and fixedly connected to the middle or lower rear end of the seat cushion frame assembly via an adjuster. A locking mechanism is provided between the seat cushion adjustment mechanism and the fixed bracket assembly. When the locking mechanism is unlocked, the seat cushion adjustment mechanism can move rearward along the movement trajectory of the linkage mechanism. The backrest lock bracket is rigidly connected to the vehicle body. The upper end of the backrest lock wire is hinged and fixed to the backrest lock bracket by an elastic element, and the lower end of the backrest lock wire is hinged and locked to the backrest lock.

[0005] In the above solution: the linkage mechanism includes four links of equal length arranged in a matrix. The upper front end of each link is hinged to the upper and lower rear ends of the seat cushion adjustment mechanism, and the lower and lower rear ends are hinged to the fixed bracket assembly. Two links on the same side, together with the seat cushion adjustment mechanism and the fixed bracket assembly, form a parallel four-bar linkage. When the locking mechanism is unlocked, the parallel four-bar linkage can move backward, thereby driving the seat cushion frame assembly to move backward. That is, parallel four-bar linkages are formed on both sides. Based on the motion characteristics of the parallel four-bar linkage, the seat cushion frame assembly can maintain a constant front-to-back height when moving backward, effectively replacing the slide rail mechanism and saving costs.

[0006] In the above solution: the locking mechanism includes a double-position floor lock on the seat adjustment mechanism, a front position locking hook at the front end of the fixed bracket assembly, and a rear position locking hook at the rear end of the fixed bracket assembly. When the seat frame assembly is in the designed position, the double-position floor lock is locked on the front position locking hook. When the double-position floor lock is locked on the rear position locking hook, the seat frame assembly moves to the final position. The designed position is the foremost position. By cooperating with the locking hooks at the corresponding positions, the seat adjustment mechanism is locked, preventing it from shaking after moving to the designated position.

[0007] In the above scheme: the seat cushion adjustment mechanism is fixedly connected to both sides of the rear end of the seat cushion frame assembly via two angle adjusters, which are symmetrically arranged. When the angle adjusters are not unlocked, they function as a rigid connection; when the angle adjusters are unlocked, they function as a rotatable connection.

[0008] In the above solution: the backrest lock wire is hinged to the backrest lock bracket via a pivot. The elastic element is a torsion spring, which is sleeved on the pivot. Both ends of the torsion spring are hooked or abutted against the backrest lock bracket and the backrest lock wire, respectively. The lower end of the backrest lock bracket is provided with a stop point. Under the action of the torsion spring, the backrest lock wire abuts against the stop point downwards to prevent the backrest lock wire from shaking, thereby preventing the backrest frame assembly from shaking in the locked state. At the same time, it ensures that the backrest frame assembly can be quickly aligned and locked when it returns to its original position.

[0009] In the above solution: a rubber pad is provided at the bottom rear end of the seat frame assembly, and the rubber pad is supported on the fixed bracket assembly to prevent the seat frame assembly from colliding with the fixed bracket assembly.

[0010] The beneficial effects of this utility model are:

[0011] The rear seat frame has three adjustment modes: Mode 1: Backrest lock unlocked, the backrest frame assembly flattens forward to increase the rear storage space; Mode 2: Adjuster unlocked, the seat cushion frame assembly folds upward under the action of the adjuster to increase the storage space between the front and rear seats; Mode 3: Locking mechanism unlocked, the seat cushion adjustment mechanism moves backward along the movement trajectory of the linkage mechanism. Since the cushion frame assembly is fixedly connected to the seat cushion adjustment mechanism, the seat cushion frame assembly, backrest frame assembly, backrest lock wire, and backrest lock bracket form a four-bar linkage. When the seat cushion adjustment mechanism moves backward, it drives this four-bar linkage, causing both the seat cushion frame assembly and the backrest frame assembly to move backward. This replaces the sliding rail mechanism, enabling the rear seats to be adjusted backward, while also providing space for the front seat backs to fold backward, allowing the rear seats in this state to form a double bed with the front seats with their backs folded back. In summary, this utility model has multiple adjustment modes, which can meet the diverse needs of consumers, and it is low in cost and easy to operate. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 yes Figure 1 A diagram from another angle.

[0015] Figure 3 This is an exploded schematic diagram of this utility model.

[0016] Figure 4 This is a structural diagram of the backrest frame assembly.

[0017] Figure 5 This is a structural diagram of the seat cushion frame assembly.

[0018] Figure 6 This is a structural diagram of the seat adjustment mechanism and the fixed bracket assembly.

[0019] Figure 7 This is a side view of the present invention in its designed position.

[0020] Figure 8 This is a side view of the present invention in its final position.

[0021] Figure 9 This is a side view of the seat frame assembly in its folded-up position.

[0022] Figure 10 This is a side view of the backrest frame assembly in a forward-flat position. Detailed Implementation

[0023] like Figure 1 As shown in Figure 10, a multi-functional automotive rear seat frame structure mainly consists of a backrest frame assembly 1, a seat cushion frame assembly 2, a seat cushion adjustment mechanism 3, a fixing bracket assembly 4, a backrest lock wire 5, and a backrest lock bracket 6. A backrest lock 9 is installed at the upper end of the backrest frame assembly 1, and the lower end of the backrest frame assembly 1 is hinged to the upper rear end of the seat cushion frame assembly 2.

[0024] The fixed bracket assembly 4 is rigidly connected to the vehicle body. The seat cushion adjustment mechanism 3 is hinged to the upper part of the fixed bracket assembly 4 via a linkage mechanism and is fixedly connected to the middle or lower rear end of the seat cushion frame assembly 2 via an adjuster 7. A locking mechanism is provided between the seat cushion adjustment mechanism 3 and the fixed bracket assembly 4. When the locking mechanism is unlocked, the seat cushion adjustment mechanism 3 can move backward along the movement trajectory of the linkage mechanism.

[0025] The backrest lock bracket 6 is rigidly connected to the vehicle body. The upper end of the backrest lock wire 5 is hinged and fixed to the backrest lock bracket 6 by the elastic element 8. The lower end of the backrest lock wire 5 is hinged and locked to the backrest lock 9.

[0026] Ideally, the linkage mechanism includes four links 10 of equal length arranged in a matrix. The upper front end of each link 10 is hinged to the upper and lower rear ends of the seat cushion adjustment mechanism 3, while the lower and lower rear ends are hinged to the fixed bracket assembly 4. Two links 10 on the same side, together with the seat cushion adjustment mechanism 3 and the fixed bracket assembly 4, form a parallel four-bar linkage. When the locking mechanism is unlocked, the parallel four-bar linkage can move backward, thereby driving the seat cushion frame assembly 2 to move backward. That is, parallel four-bar linkages are formed on both sides. Based on the motion characteristics of the parallel four-bar linkage, the seat cushion frame assembly 2 can maintain its front-to-back height position (here, front-to-back position refers to the foremost and rearmost positions remaining unchanged) when moving backward, effectively replacing the slide rail mechanism and saving costs.

[0027] Ideally, the locking mechanism includes a double-position floor lock 31 on the seat adjustment mechanism 3, a front position locking hook 41 at the front end of the fixed bracket assembly 4, and a rear position locking hook 42 at the rear end of the fixed bracket assembly 4. When the seat frame assembly 2 is in the designed position, the double-position floor lock 31 is locked onto the front position locking hook 41. When the double-position floor lock 31 is locked onto the rear position locking hook 42, the seat frame assembly 2 moves to the final position. The designed position is the foremost position. By cooperating with the locking hooks at the corresponding positions, the double-position floor lock 31 is locked to prevent the seat adjustment mechanism 3 from shaking after moving to the designated position.

[0028] Ideally, the seat adjustment mechanism 3 is fixedly connected to both sides of the rear end of the seat frame assembly 2 via two angle adjusters 7, with the two angle adjusters 7 arranged symmetrically. When the angle adjusters 7 are not unlocked, they serve as a rigid connection; when the angle adjusters 7 are unlocked, they serve as a rotatable connection.

[0029] Ideally, the backrest locking wire 5 is hinged to the backrest locking bracket 6 via a pivot 51. The elastic element 8 is a torsion spring, which is sleeved on the pivot 51. The two ends of the torsion spring are hooked or abutted against the backrest locking bracket 6 and the backrest locking wire 5, respectively. The lower end of the backrest locking bracket 6 is provided with a stop point 61. Under the action of the torsion spring, the backrest locking wire 5 abuts against the stop point 61 to prevent the backrest locking wire 5 from shaking, thereby preventing the backrest frame assembly 1 from shaking in the locked state. At the same time, it ensures that the backrest frame assembly 1 can be quickly aligned and locked when it returns to its original position.

[0030] Ideally, a rubber pad 21 is provided at the bottom rear end of the seat frame assembly 2, and the rubber pad 21 is supported on the fixed bracket assembly 4 to prevent the seat frame assembly 2 from colliding with the fixed bracket assembly 4.

[0031] This utility model has three adjustment modes, including the backrest lying flat forward, the seat cushion folding up, and the seat moving backward.

[0032] 1. Seat moves backward: In the designed state, the double floor lock 31 is locked with the front position lock hook 41 to keep the linkage mechanism fixed; when the double floor lock 31 is released, the linkage mechanism can adjust backward according to the trajectory. When the double floor lock 31 contacts the rear position lock hook 42, it locks. At this time, the seat frame assembly 2 reaches the last position of backward movement and remains stably locked.

[0033] Since the seat cushion frame assembly 2 and the seat cushion adjustment mechanism 3 are rigidly connected through the angle adjuster 7, and since the seat cushion frame assembly 2, the backrest frame assembly 1, the backrest locking wire 5 and the backrest locking bracket 6 form a four-bar linkage mechanism, when the seat cushion frame assembly 2 moves backward as a whole, the backrest frame assembly 1 also moves backward in linkage.

[0034] Conversely, after unlocking the double-position floor lock 31, it moves to the foremost position and locks, then returns to the original position as shown. Figure 4 The design location is shown.

[0035] 2. Seat Cushion Folding Up: In the designed state, the double-position floor lock 31 and the front position lock hook 41 are locked, keeping the linkage mechanism fixed; when the angle adjuster 7 is unlocked, the seat cushion frame assembly 2 and the seat cushion adjustment mechanism 3 can rotate freely around the center of the angle adjuster 7; since the seat cushion frame assembly 2, the backrest frame assembly 1, the backrest lock wire 5 and the backrest lock bracket 6 form a four-bar linkage mechanism; when the seat cushion frame assembly 2 folds up, the backrest frame assembly 1 also moves backward accordingly, reaching... Figure 6 When in position, the angle adjuster 7 locks, and the mechanism is fixed.

[0036] Conversely, unlock the seat adjuster 7; after the seat frame assembly 2 is laid flat downwards, lock the seat adjuster 7, returning it to the original position. Figure 4 The design location is shown.

[0037] 3. The backrest is laid flat forward; in the designed state, the double-position floor lock 31 and the front position lock hook 41 are locked, keeping the linkage mechanism fixed; the backrest lock 9 is unlocked, causing the backrest lock 9 to separate from the backrest lock wire 5, and the backrest frame assembly 1 flips forward relative to the seat cushion frame assembly 2 to achieve a flat position; conversely, after the backrest frame assembly 1 is flipped up, the backrest lock 9 and the backrest lock wire 5 are locked, returning to the original position. Figure 4 The design location is shown.

Claims

1. A multifunctional automotive rear seat frame structure, comprising a backrest frame assembly (1) and a seat cushion frame assembly (2), wherein a backrest lock (9) is installed at the upper end of the backrest frame assembly (1), and the lower end of the backrest frame assembly (1) is hinged to the upper rear end of the seat cushion frame assembly (2), characterized in that: It also includes a seat cushion adjustment mechanism (3), a fixed bracket assembly (4), a backrest lock wire (5), and a backrest lock bracket (6). The fixed bracket assembly (4) is rigidly connected to the vehicle body. The seat cushion adjustment mechanism (3) is hinged to the upper part of the fixed bracket assembly (4) through a linkage mechanism and is fixedly connected to the middle or lower rear end of the seat cushion frame assembly (2) through an angle adjuster (7). A locking mechanism is provided between the seat cushion adjustment mechanism (3) and the fixed bracket assembly (4). When the locking mechanism is unlocked, the seat cushion adjustment mechanism (3) can move backward along the movement trajectory of the linkage mechanism. The backrest lock bracket (6) is rigidly connected to the vehicle body. The upper end of the backrest lock wire (5) is hinged and fixed to the backrest lock bracket (6) through an elastic element (8). The lower end of the backrest lock wire (5) is hinged and locked to the backrest lock (9).

2. The multifunctional automotive rear seat frame structure according to claim 1, characterized in that: The linkage mechanism includes four links (10), which are of the same length and arranged in a matrix. The upper front end of each link (10) is hinged to the upper and lower rear ends of the seat adjustment mechanism (3) and the fixed bracket assembly (4). The two links (10) on the same side, together with the seat adjustment mechanism (3) and the fixed bracket assembly (4), form a parallel four-bar linkage. When the locking mechanism is unlocked, the parallel four-bar linkage can move backward, thereby driving the seat frame assembly (2) to move backward.

3. The multifunctional automotive rear seat frame structure according to claim 2, characterized in that: The locking mechanism includes a double-position floor lock (31) on the seat adjustment mechanism (3), a front position locking hook (41) on the front end of the fixed bracket assembly (4), and a rear position locking hook (42) on the rear end of the fixed bracket assembly (4). When the seat frame assembly (2) is in the designed position, the double-position floor lock (31) is locked on the front position locking hook (41). When the double-position floor lock (31) is locked on the rear position locking hook (42), the seat frame assembly (2) moves to the final position.

4. The multifunctional automotive rear seat frame structure according to claim 1, characterized in that: The seat adjustment mechanism (3) is fixedly connected to the rear sides of the seat frame assembly (2) through two angle adjusters (7), and the two angle adjusters (7) are symmetrically arranged.

5. The multifunctional automotive rear seat frame structure according to claim 1, characterized in that: The backrest lock wire (5) is hinged to the backrest lock bracket (6) via a pivot (51). The elastic element (8) is a torsion spring, which is sleeved on the pivot (51). The two ends of the torsion spring are hooked or abutted against the backrest lock bracket (6) and the backrest lock wire (5) respectively. The lower end of the backrest lock bracket (6) is provided with a stop point (61). The backrest lock wire (5) abuts against the stop point (61) downward under the action of the torsion spring.

6. The multifunctional automotive rear seat frame structure according to claim 1, characterized in that: A rubber pad (21) is provided at the bottom rear end of the seat frame assembly (2), and the rubber pad (21) is supported on the fixed bracket assembly (4).

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