A two-stage rear seat backrest skeleton structure

Abstract

The utility model relates to the technical field of automobile seat, concretely relates to a two -segment formula rear row backrest framework structure, including bottom support, backrest framework one, backrest framework two, two fixed frame, limiting component one and limiting component two, and backrest framework one provides the installation condition for limiting component one, and backrest framework two provides the installation condition for limiting component two, when needing to fold backrest framework one and backrest framework two, pull limiting component one, when limiting component one and limiting component two are completely separated with two fixed frames, can rotate backrest framework one and backrest framework two along bottom support, fold, and backrest framework one and backrest framework two can be individually adjusted, adapt to the application of different scenes, thereby solve the problem that only can be laid down in whole row when laying down backrest framework, cannot adjust according to the actual demand of user.

Description

Technical Field

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

[0002] When the rear seat frame of a car is folded down, a hinge structure with pins and holes is generally used to achieve the folding of the backrest frame. In the existing structure, the pin is set coaxially with the lower tube frame of the backrest frame. Because the lower tube frame of the backrest frame lacks restraint, in the trunk impact test and ISOFIX fixed point strength test, it is necessary to increase the wall thickness of the tube, which increases the overall weight of the frame, or to use higher strength materials to reduce the deformation of the lower tube frame.

[0003] Currently, existing technology (CN 220764164 U) discloses an integrated rear seat backrest frame structure for automobiles, including a backrest frame with a mounting plate between its two ends. A pin is provided on the mounting plate, and a hinge mounting bracket is rotatably mounted on the pin. The bottom of the hinge mounting bracket is mounted on the vehicle body, and the backrest frame can rotate around the pin. The hinge mounting bracket has an arc-shaped segment located near the bottom of the lower tube frame of the backrest frame. This invention, during trunk impact tests and ISOFIX fixed-point strength tests, uses the arc-shaped segment to support the lower tube frame, preventing excessive deformation and reducing the tube wall thickness, thus further achieving lightweighting or cost reduction of the backrest frame. It also reduces the stress points on the lower tube frame and prevents deformation exceeding test requirements.

[0004] Using the above method, when folding down the backrest frame, only the entire frame can be folded down, and it cannot be adjusted according to the user's actual needs, thus reducing the user experience. Utility Model Content

[0005] The purpose of this invention is to provide a two-section rear seat back frame structure, which aims to solve the problem that when the back seat frame is folded down, it can only be folded down as a whole and cannot be adjusted according to the user's actual needs.

[0006] To achieve the above objectives, this utility model provides a two-section rear seat back frame structure, including a bottom support, a back frame one, a back frame two, two fixing frames, a limiting component one, and a limiting component two.

[0007] The first backrest frame is installed on the bottom bracket, the second backrest frame is installed on the side of the bottom bracket near the second backrest frame, the two fixing brackets are respectively installed on the vehicle body, the first limiting component is installed on the first backrest frame, and the second limiting component is installed on the second backrest frame.

[0008] The bottom support includes a left support, a middle support, and a right support. The left support is mounted on the vehicle body and is rotatably connected to the first backrest frame. The middle support is mounted on the vehicle body and is rotatably connected to the first backrest frame and the second backrest frame. The right support is mounted on the vehicle body and is connected to the second backrest frame.

[0009] The mounting bracket includes a mounting plate and a fixing rod. The mounting plate is mounted on the vehicle body, and the fixing rod is fixedly connected to the mounting plate and located on the mounting plate.

[0010] The limiting component includes a mounting shell, a pull member, and a locking block. The mounting shell is fixedly connected to the backrest frame and is located on the backrest frame. The pull member is mounted on the backrest frame. The locking block is rotatably connected to the mounting shell and connected to the pull member.

[0011] The pulling component includes a pull plate and a pull cable. The pull plate is rotatably connected to the backrest frame and is located on the backrest frame. The pull cable is fixedly connected to the pull plate and to the locking block, and is located between the pull plate and the locking block.

[0012] This utility model discloses a two-section rear seat backrest frame structure. The bottom bracket provides installation conditions for the first and second backrest frames. The first backrest frame provides installation conditions for the first limiting component, and the second backrest frame provides installation conditions for the second limiting component. When the first and second backrest frames need to be folded, the first limiting component is pulled. When the first and second limiting components are completely separated from the two fixing frames, the first and second backrest frames can be rotated along the bottom bracket to fold them. At the same time, the first and second backrest frames can be adjusted individually to adapt to different application scenarios, thus solving the problem that when the backrest frame is folded down, it can only be folded down as a whole and cannot be adjusted according to the user's actual needs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of a two-section rear seatback frame structure according to the present invention.

[0015] Figure 2 This is a cross-sectional view of a two-section rear seatback frame structure according to the present invention.

[0016] In the diagram: 1-Backrest frame one, 2-Backrest frame two, 3-Left bracket, 4-Middle bracket, 5-Right bracket, 6-Mounting plate, 7-Fixing rod, 8-Mounting shell, 9-Clip block, 10-Pull plate, 11-Pull cable. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figures 1-2 This utility model provides a two-section rear seat back frame structure, including a bottom bracket, a back frame 1, a back frame 2, two fixing frames, a limiting component 1, and a limiting component 2.

[0019] The backrest frame 1 is mounted on the bottom bracket, the backrest frame 2 is mounted on the side of the bottom bracket near the backrest frame 2, the two fixing brackets are respectively mounted on the vehicle body, the limiting component 1 is mounted on the backrest frame 1, and the limiting component 2 is mounted on the backrest frame 2.

[0020] In this embodiment, the limiting component one and the limiting component two have the same structure. The bottom bracket provides installation conditions for the backrest frame one 1 and the backrest frame two 2. The backrest frame one 1 provides installation conditions for the limiting component one, and the backrest frame two 2 provides installation conditions for the limiting component two. When it is necessary to fold the backrest frame one 1 and the backrest frame two 2, the limiting component one is pulled. When the limiting component one and the limiting component two are completely separated from the two fixing frames, the backrest frame one 1 and the backrest frame two 2 can be rotated along the bottom bracket to fold them. At the same time, the backrest frame one 1 and the backrest frame two 2 can be adjusted individually to adapt to different application scenarios, thereby solving the problem that when the backrest frame is folded down, it can only be folded down as a whole and cannot be adjusted according to the user's actual needs.

[0021] Furthermore, the bottom support includes a left support 3, a middle support 4, and a right support 5. The left support 3 is mounted on the vehicle body and is rotatably connected to the backrest frame 1. The middle support 4 is mounted on the vehicle body and is rotatably connected to the backrest frame 1 and the backrest frame 2. The right support 5 is mounted on the vehicle body and is connected to the backrest frame 2.

[0022] In this embodiment, the left bracket 3, the middle bracket 4, and the right bracket 5 provide installation conditions for the backrest frame 1 and the backrest frame 2.

[0023] Furthermore, the mounting bracket includes a mounting plate 6 and a fixing rod 7. The mounting plate 6 is mounted on the vehicle body, and the fixing rod 7 is fixedly connected to the mounting plate 6 and located on the mounting plate 6.

[0024] In this embodiment, the mounting plate 6 provides the installation conditions for the fixing rod 7. The fixing rod 7, in conjunction with the locking block 9, can limit the position of the backrest frame 1 or the backrest frame 2.

[0025] Furthermore, the limiting component includes a mounting shell 8, a pull member, and a locking block 9. The mounting shell 8 is fixedly connected to the backrest frame 1 and is located on the backrest frame 1. The pull member is installed on the backrest frame 1. The locking block 9 is rotatably connected to the mounting shell 8 and connected to the pull member.

[0026] In this embodiment, the mounting shell 8 provides the mounting conditions for the locking block 9. Pulling the pulling member can drive the locking block 9 to rotate. The rotation of the locking block 9 can cooperate with the fixing rod 7 to limit the position of the backrest frame 1.

[0027] Furthermore, the pulling component includes a pull plate 10 and a pull cable 11. The pull plate 10 is rotatably connected to the backrest frame 1 and is located on the backrest frame 1. The pull cable 11 is fixedly connected to the pull plate 10 and fixedly connected to the locking block 9, and is located between the pull plate 10 and the locking block 9.

[0028] In this embodiment, pulling the pull plate 10 can cause the pull cable 11 to extend or retract, and the extension or retraction of the pull cable 11 can cause the locking block 9 to rotate.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A two-section rear seatback frame structure, characterized in that, Includes a bottom bracket, backrest frame one, backrest frame two, two fixing frames, limiting component one, and limiting component two; The first backrest frame is installed on the bottom bracket, the second backrest frame is installed on the side of the bottom bracket near the second backrest frame, the two fixing brackets are respectively installed on the vehicle body, the first limiting component is installed on the first backrest frame, and the second limiting component is installed on the second backrest frame. The bottom support includes a left support, a middle support, and a right support. The left support is mounted on the vehicle body and is rotatably connected to the first backrest frame. The middle support is mounted on the vehicle body and is rotatably connected to the first backrest frame and the second backrest frame. The right support is mounted on the vehicle body and is connected to the second backrest frame.

2. The two-section rear seatback frame structure as described in claim 1, characterized in that, The mounting bracket includes a mounting plate and a fixing rod. The mounting plate is mounted on the vehicle body, and the fixing rod is fixedly connected to the mounting plate and located on the mounting plate.

3. The two-section rear seatback frame structure as described in claim 2, characterized in that, The limiting component includes a mounting shell, a pull member, and a locking block. The mounting shell is fixedly connected to the backrest frame and is located on the backrest frame. The pull member is mounted on the backrest frame. The locking block is rotatably connected to the mounting shell and connected to the pull member.

4. The two-section rear seatback frame structure as described in claim 3, characterized in that, The pulling component includes a pull plate and a pull cable. The pull plate is rotatably connected to the backrest frame and is located on the backrest frame. The pull cable is fixedly connected to the pull plate and to the locking block, and is located between the pull plate and the locking block.

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