Seat capable of realizing forward turning of seat cushion and flat turning of backrest

Abstract

The utility model discloses a seat capable of realizing forward turning of a seat cushion and flat turning of a backrest, which comprises the backrest and the seat cushion, and two sides of the lower end of the backrest are rotatably connected with the rear end of the seat cushion through backrest angle adjusters respectively. The connecting rod mechanism is composed of two upper connecting rod supports, two seat cushion connecting rod supports and two middle shaft connecting rod supports, the seat cushion upper support is connected with the seat cushion through the connecting rod mechanism, and when the driving mechanism works, the upper connecting rod supports can be driven to move forwards, so that the middle shaft connecting rod supports are driven to rotate anticlockwise; the seat cushion connecting rod support is driven to move forwards and rotate clockwise, then the seat cushion upper support is driven to be turned and opened anticlockwise, space is provided for the backrest to be turned flat, and at the moment, the backrest angle adjuster motor can drive the backrest to be turned flat forwards. According to the utility model, the automatic operation of forward turning of the seat cushion and flat turning of the backrest is realized, the convenience and efficiency of the operation are greatly improved, the loading space of the luggage case is effectively enlarged, and the requirement of a user on a larger luggage case space is met.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a seat that can achieve forward folding of the seat cushion and flattening of the backrest. Background Technology

[0002] As a key component of automotive interiors, car seats directly impact the comfort of passengers and play a crucial role in the effective utilization of interior space. With the continuous development of the automotive industry and the increasing diversification of consumer demands, people are placing higher demands on car seats. They not only expect excellent comfort but also more practical functions to meet the needs of different scenarios, especially in terms of space utilization, with consumers showing a continuously increasing demand for trunk space. Currently, a common way to expand trunk space is to fold the car seat back forward, making it flush with the rear trunk surface, thus creating a relatively regular and large storage space. However, in practical applications, the structural design of some car seats has certain limitations, making it impossible to directly achieve the function of folding the backrest forward. Specifically, folding the backrest forward is restricted by the seat cushion, and the arrangement space between the two conflicts. Therefore, users need to manually lift the seat cushion first to make room for the backrest to fold, and then fold the backrest down, which is a laborious and time-consuming operation. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention aims to provide a seat that can achieve forward folding of the seat cushion and flattening of the backrest, without manual operation, and the seat cushion and backrest can be automatically folded.

[0004] To achieve the above objectives, this utility model proposes a seat capable of folding the seat cushion forward and flattening the backrest, comprising a backrest and a seat cushion. The lower ends of the backrest are rotatably connected to the rear end of the seat cushion via backrest angle adjusters. The backrest angle adjusters are equipped with backrest angle adjuster motors, which drive the backrest angle adjusters to fold the backrest forward.

[0005] It also includes a seat cushion upper support, two upper connecting rod supports arranged opposite each other on the left and right, two seat cushion connecting rod supports, and two central axis connecting rod supports. The rear end of the seat cushion upper support is supported on the seat cushion. The front ends of the seat cushion upper support are respectively hinged to the front ends of the two seat cushion connecting rod supports on both sides. The middle ends of the seat cushion upper support are respectively hinged to the front ends of the two upper connecting rod supports on both sides. The left and right ends of the seat cushion are respectively provided with sliding grooves extending forward and backward. The rear ends of the two seat cushion connecting rod supports are respectively slidably connected to the corresponding side sliding grooves and can rotate along the sliding grooves. The middle parts of the two seat cushion connecting rod supports are respectively hinged to the middle parts of the corresponding side central axis connecting rod supports. The front ends of the two central axis connecting rod supports are respectively hinged to the seat cushion upper support. The front two sides of the cushion are hinged, and the rear ends of the two central axis connecting rod brackets are respectively hinged to the middle of the corresponding upper connecting rod brackets. A front connecting rod of the cushion is fixed between the front two sides of the upper support of the cushion, and a rear connecting rod of the cushion is fixed between the two upper connecting rod brackets. A driving mechanism is provided between the front connecting rod and the rear connecting rod of the cushion. When the driving mechanism works, it can drive the upper connecting rod bracket to move forward, thereby driving the central axis connecting rod bracket to rotate counterclockwise, driving the cushion connecting rod bracket to move forward and rotate clockwise, and then driving the upper support of the cushion to flip and open counterclockwise to provide space for the backrest to be flattened. At this time, the backrest angle adjuster motor drives the backrest angle adjuster to run, which can drive the backrest to be flattened forward.

[0006] In the above solution: a backrest adjustment rod connects the two backrest adjusters, and the backrest adjustment motor is mounted on the backrest adjustment rod and fixed to the backrest. The two backrest adjusters are connected by the backrest adjustment rod, so that a single backrest adjustment motor can drive the backrest adjusters on both sides simultaneously.

[0007] In the above design: The upper seat support has a downward-facing ear bracket on each of its two front sides, arranged opposite each other. The front ends of the two seat cushion connecting rod brackets are hinged to the front ends of their respective side ear brackets to achieve hinged connection with the front end of the upper seat support. The front ends of the two seat cushion connecting rod brackets are also hinged to the rear ends of their respective side ear brackets to achieve hinged connection with the middle of the upper seat support. This design facilitates the arrangement of the connection structure between the seat cushion connecting rod brackets and the upper seat support, and enables better transmission of force and movement.

[0008] In the above design, the front connecting rod of the seat cushion is fixed between the two ear supports. The stable connection of the front connecting rod of the seat cushion helps the drive mechanism to better drive the movement of components such as the upper connecting rod support.

[0009] In the above solution, the rear end of the seat cushion connecting rod bracket is slidably connected to the corresponding side sliding groove by stepped bolts or rivets, and can rotate along the sliding groove. The structure is simple and easy to install.

[0010] In the above solution, the driving mechanism is a lead screw drive mechanism. Lead screw drive mechanisms have advantages such as high transmission accuracy, smooth operation, and good self-locking properties. During seat adjustment, the lead screw drive mechanism can precisely control the angle and speed of the seat cushion's support tilting forward, making the adjustment process smoother and avoiding impacts or jamming caused by adjusting too quickly or too slowly.

[0011] The beneficial effects of this utility model are as follows: 1. This seat, equipped with a seat cushion support, linkage mechanism, and corresponding drive mechanism, can automatically achieve the forward folding action of the seat cushion. When it is necessary to expand the luggage space, the drive mechanism drives the linkage mechanism to move, causing the seat cushion support to flip counterclockwise and open, providing ample space for the backrest to fold flat. Subsequently, the backrest angle adjuster motor drives the backrest angle adjuster to operate, causing the backrest to fold forward and flatten. The entire process does not require manual lifting of the seat cushion and folding of the backrest, realizing the automated operation of seat space expansion, greatly improving the convenience and efficiency of operation, and saving users' time and energy. 2. Some traditional seats are limited by the seat cushion when folding the backrest, and cannot directly achieve the forward folding of the backrest, resulting in limited luggage space expansion. However, this seat, through its unique structural design, cleverly solves the space conflict problem between the seat cushion and the backrest, and can achieve the complete flattening of the backrest in a limited space, making the backrest flush with the rear luggage compartment surface of the vehicle body, thereby effectively expanding the luggage loading space, meeting users' needs for larger luggage space, and improving the space utilization efficiency of the car. Attached Figure Description

[0012] Figure 1 This is a side view of the present invention in its initial state.

[0013] Figure 2 This is an isometric view of the present invention in its initial state.

[0014] Figure 3 This is a diagram showing the connection between the seat cushion and the support frame on the seat cushion.

[0015] Figure 4 This is a schematic diagram of the present invention in the seat cushion forward-folded state (backrest in the initial state).

[0016] Figure 5 This is a schematic diagram of the present invention in the state of the seat cushion flipping forward and the backrest being flattened.

[0017] Figure 6 This is a schematic diagram of the initial state of this utility model.

[0018] Figure 7 This is a schematic diagram of the seat cushion flipping forward in this utility model (backrest in the initial state).

[0019] Figure 8 This is a schematic diagram illustrating the principle of the seat cushion flipping forward and the backrest flattening in this utility model. Detailed Implementation

[0020] like Figure 1 As shown in Figure 8, a type of seat that can achieve forward folding of the seat cushion and flattening of the backrest mainly consists of a backrest 1, a seat cushion 2, a seat cushion upper support 5, two upper connecting rod supports 6 arranged opposite to each other on the left and right, two seat cushion connecting rod supports 7, and two central shaft connecting rod supports 8.

[0021] The lower ends of the backrest 1 are rotatably connected to the rear end of the seat cushion 2 via backrest angle adjusters 4. The backrest angle adjuster 4 is equipped with a backrest angle adjuster motor 3, which can drive the backrest angle adjuster 4 to fold the backrest 1 forward.

[0022] The rear end of the upper seat support 5 is supported on the seat 2. The front ends of the upper seat support 5 are hinged to the front ends of the two seat support rod supports 7 respectively. The middle ends of the upper seat support 5 are hinged to the front ends of the two upper support rod supports 6 respectively. The left and right ends of the seat 2 are provided with sliding grooves 21 extending forward and backward. The rear ends of the two seat support rod supports 7 are slidably connected to the corresponding side sliding grooves 21 and can rotate along the sliding grooves 21. The middle parts of the two seat support rod supports 7 are hinged to the middle parts of the corresponding side central axis support rod supports 8 respectively. The front ends of the two central axis support rod supports 8 are hinged to the front ends of the seat 2 respectively. The rear ends of the two central axis support rod supports 8 are hinged to the middle parts of the corresponding side upper support rod supports 6 respectively.

[0023] A front connecting rod 11 is fixed between the two front ends of the upper support 5 of the seat cushion, and a rear connecting rod 12 is fixed between the two upper connecting rod supports 6. A drive mechanism 10 is provided between the front connecting rod 11 and the rear connecting rod 12 of the seat cushion. When the drive mechanism 10 is working, it can drive the upper connecting rod support 6 to move forward, thereby driving the central shaft connecting rod support 8 to rotate counterclockwise, driving the seat cushion connecting rod support 7 to move forward and rotate clockwise, and then driving the upper support 5 of the seat cushion to flip and open counterclockwise to provide space for the backrest 1 to be flattened. At this time, the backrest angle adjuster motor 3 drives the backrest angle adjuster 4 to run, which can drive the backrest 1 to be flattened forward.

[0024] Note: The forward tilting of the seat cushion implemented in this article actually refers to the forward tilting of the seat cushion support 5.

[0025] Ideally, a backrest linkage rod 9 connects the two backrest adjusters 4, and the backrest adjuster motor 3 is mounted on the backrest linkage rod 9 and fixed to the backrest 1. The two backrest adjusters 4 are connected by the backrest linkage rod 9, so that a single backrest adjuster motor 3 can drive the backrest adjusters 4 on both sides simultaneously.

[0026] Ideally, each side of the front end of the upper seat support 5 should have a downward-facing ear support 51, with the ear supports 51 arranged opposite each other. The front ends of the two seat cushion connecting rod supports 7 are respectively hinged to the front ends of the corresponding side ear supports 51 to achieve hinged connection with the front end of the upper seat support 5, and the front ends of the two seat cushion connecting rod supports 7 are respectively hinged to the rear ends of the corresponding side ear supports 51 to achieve hinged connection with the middle of the upper seat support 5. This design makes the connection structure between the seat cushion connecting rod supports 7 and the upper seat support 5 easy to arrange and can better transmit force and movement.

[0027] Ideally, the front linkage 11 of the seat cushion is fixed between the two ear supports 51. A stable connection of the front linkage 11 of the seat cushion helps the drive mechanism to better drive the movement of components such as the upper linkage support 5.

[0028] Ideally, the rear end of the seat cushion linkage bracket 7 is slidably connected to the corresponding side slide groove 21 via stepped bolts or rivets, and can rotate along the slide groove 21. The structure is simple and easy to install.

[0029] Ideally, the drive mechanism 10 is a lead screw drive mechanism, which includes a motor, a lead screw connected to the motor, and a nut threaded onto the lead screw. The nut is fixed to the rear connecting rod 12 of the seat cushion via a nut bracket, and the motor is fixed to the front connecting rod 11 of the seat cushion via a motor bracket. The lead screw drive mechanism has advantages such as high transmission accuracy, smooth operation, and good self-locking. During seat adjustment, the lead screw drive mechanism can precisely control the angle and speed of the forward tilt of the support 5 on the seat cushion, making the adjustment process smoother and avoiding shocks or jamming caused by adjusting too quickly or too slowly.

Claims

1. A seat capable of folding the seat cushion forward and flattening the backrest, comprising a backrest (1) and a seat cushion (2), wherein the lower ends of the backrest (1) are rotatably connected to the rear end of the seat cushion (2) via backrest angle adjusters (4), the backrest angle adjusters (4) are equipped with backrest angle adjuster motors (3), the backrest angle adjuster motors (3) can drive the backrest angle adjusters (4) to operate, thereby causing the backrest (1) to fold forward, characterized in that: It also includes a seat cushion upper support (5), two upper connecting rod supports (6) arranged opposite to each other on the left and right, two seat cushion connecting rod supports (7), and two central axis connecting rod supports (8). The rear end of the seat cushion upper support (5) is supported on the seat cushion (2). The front ends of the seat cushion upper support (5) are respectively hinged to the front ends of the two seat cushion connecting rod supports (7). The middle ends of the seat cushion upper support (5) are respectively hinged to the front ends of the two upper connecting rod supports (6). The left and right ends of the seat cushion (2) are respectively provided with sliding grooves (21) extending forward and backward. The rear ends of the two seat cushion connecting rod supports (7) are respectively slidably connected to the corresponding side sliding grooves (21) and can rotate along the sliding grooves (21). The middle parts of the two seat cushion connecting rod supports (7) are respectively hinged to the middle parts of the corresponding side central axis connecting rod supports (8). The front ends of the two central axis connecting rod supports (8) are respectively connected to the seat cushion (2). The front ends of the seat cushion bracket (5) are hinged on both sides. The rear ends of the two central shaft connecting rod brackets (8) are respectively hinged to the middle of the corresponding side upper connecting rod bracket (6). The front connecting rod (11) of the seat cushion is fixed between the front ends of the upper supporting rod (5). The rear connecting rod (12) of the seat cushion is fixed between the two upper connecting rod brackets (6). A driving mechanism (10) is provided between the front connecting rod (11) and the rear connecting rod (12). When the driving mechanism (10) works, it can drive the upper connecting rod bracket (6) to move forward, thereby driving the central shaft connecting rod bracket (8) to rotate counterclockwise, driving the seat cushion connecting rod bracket (7) to move forward and rotate clockwise, thereby driving the upper supporting rod (5) of the seat cushion to flip and open counterclockwise to provide space for the backrest (1) to be flattened. At this time, the backrest angle adjuster motor (3) drives the backrest angle adjuster (4) to run, which can drive the backrest (1) to be flattened forward.

2. The seat capable of realizing the front-over of the cushion and the flat-over of the backrest according to claim 1, characterized in that: A backrest linkage rod (9) is connected between the two backrest angle adjusters (4). The backrest angle adjuster motor (3) is mounted on the backrest linkage rod (9) and fixed to the backrest (1).

3. The seat capable of realizing the front-over of the cushion and the flat-over of the backrest according to claim 2, characterized in that: The upper seat support (5) has a side ear support (51) on both sides of its front end. The side ear supports (51) are arranged opposite each other. The front ends of the two seat support rod supports (7) are respectively hinged to the front ends of the corresponding side ear supports (51) to achieve hinged connection with the front end of the upper seat support (5). The front ends of the two seat support rod supports (7) are respectively hinged to the rear ends of the corresponding side ear supports (51) to achieve hinged connection with the middle part of the upper seat support (5).

4. The seat according to claim 3, capable of folding the seat cushion forward and flattening the backrest, characterized in that: The front connecting rod (11) of the seat cushion is fixed between the two ear supports (51).

5. The seat according to claim 1, capable of folding the seat cushion forward and flattening the backrest, characterized in that: The rear end of the seat cushion connecting rod bracket (7) is slidably connected to the corresponding side slide groove (21) by step bolts or rivets, and can rotate along the slide groove (21).

6. The seat capable of realizing the front-over of the cushion and the flat-over of the backrest according to claim 1, characterized in that: The drive mechanism (10) is a lead screw drive mechanism.

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