Zero-gravity car seats with seatbelt-linked adjustment

Abstract

This invention discloses a zero-gravity car seat with seatbelt-linked adjustment, including a base and a seat frame located on the upper side of the base. The base is used for mounting and connecting to the car floor. The rear end of the seat frame is rotatably connected to the base. A drive assembly is provided between the front end of the seat frame and the base. The drive assembly is used to drive the front end of the seat frame to move up and down. A linkage assembly is provided on the side of the seat frame. The linkage assembly carries and is equipped with a buckle component for securing the seatbelt. The linkage assembly is poweredly connected to the drive assembly. When the drive assembly drives the front end of the seat frame to move up and down, the buckle component can move synchronously back and forth with the linkage assembly. The beneficial effects of this invention are: it can automatically adjust the position of the seatbelt buckle with the rotation of the zero-gravity seat frame, reducing the pressure of the seatbelt lap belt on the occupant's abdomen, and improving the comfort and safety of the seat.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and more specifically to a zero-gravity automotive seat with seatbelt-linked adjustment. Background Technology

[0002] As automobiles are upgraded and improved, consumers have higher and higher requirements for the safety and comfort of car rides. As a result, zero-gravity seats that can provide a zero-gravity riding mode have emerged.

[0003] The zero-gravity mode of a zero-gravity seat involves the front of the seat frame lifting upwards, the backrest tilting backwards, and the leg rest slightly tilted. In zero-gravity mode, users can lie comfortably in the seat. However, given the relatively short time that zero-gravity car seats have been on the market, there are still many imperfections. For example, during the transition from a sitting position to a zero-gravity state, because the seatbelt buckle is fixed to the side of the seat, the lap belt portion of the seatbelt can compress the occupant's abdomen when the front of the seat frame lifts, affecting occupant comfort. Secondly, in zero-gravity mode, the restraint effect of the seatbelt on the occupant decreases. In the event of a collision, the occupant tends to slide forward and downward, i.e., lurch down. During this lurch down, the lap belt portion of the seatbelt can cause significant injury to the passenger's pelvis, abdomen, and even chest. In this state, the seatbelt cannot guarantee the occupant's life safety. Summary of the Invention

[0004] In view of this, the present invention provides a zero-gravity car seat with seat belt linkage adjustment, which can automatically adjust the position of the seat belt buckle as the zero-gravity seat frame rotates, thereby improving the comfort and safety of the seat.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A zero-gravity car seat with seatbelt-linked adjustment, the key features of which include:

[0007] A base for mounting and connecting to the car floor;

[0008] A seat frame is located on the upper side of the base, with its rear end rotatably connected to the base. A drive assembly is provided between the front end of the seat frame and the base, and this drive assembly is used to drive the front end of the seat frame to move up and down.

[0009] The linkage component located on the side of the seat frame carries a buckle component for securing the seat belt. The linkage component is poweredly connected to the drive component. When the drive component drives the front end of the seat frame to move up and down, the buckle component can move synchronously back and forth with the linkage component.

[0010] With the above structure, during the transition of the car seat from a sitting position to a zero-gravity state, the drive component drives the seat frame to rotate upward, which in turn drives the linkage component to move. This also synchronously drives the buckle component on the linkage component to move forward. The forward movement of the buckle component can reduce the pressure on the occupant's abdomen from the seat belt, improving the comfort of the seat in a zero-gravity state. At the same time, the forward movement of the buckle component can prevent the occupant from sinking during a car collision, effectively reducing the injury to the occupant caused by a car collision in a zero-gravity state.

[0011] Preferably, the drive assembly includes an upper linkage component and a lower linkage component. One end of the upper linkage component is rotatably connected to the front end of the seat frame, and the other end is hinged to the lower linkage component. The lower linkage component is rotatably mounted at the front end of the base via an electric angle adjuster. The linkage assembly is poweredly connected to the lower linkage component.

[0012] Preferably, the linkage assembly includes a first linkage piece, a second linkage piece, a third linkage piece, and a fourth linkage piece that are hinged at their ends in sequence. The end of the first linkage piece away from the second linkage piece is rotatably connected to the lower linkage component. The middle part of the second linkage piece is rotatably connected to the base. The end of the fourth linkage piece away from the third linkage piece is rotatably connected to the rear end of the seat frame. The buckle component is installed on the third linkage piece.

[0013] Preferably, the lower linkage component is fixedly provided with a transition component, which is located in the radial extension direction of the electric angle adjuster, and the first linkage plate is rotatably connected to the transition component.

[0014] Preferably, a connecting platform is fixedly provided on the base, and the second linkage plate is hinged to the side of the connecting platform.

[0015] Preferably, the third linkage plate is provided with a mounting hole, and the buckle component is rotatably assembled onto the mounting hole via a rotating shaft.

[0016] Preferably, the third linkage piece is provided with an arc-shaped groove on the upper side of the mounting hole, and the buckle component is provided with a positioning pin at the position corresponding to the arc-shaped groove. The positioning pin is embedded in the arc-shaped groove and can slide along the length direction of the arc-shaped groove.

[0017] Preferably, a set of the aforementioned drive assembly and linkage assembly is provided on each of the left and right sides of the seat, wherein the linkage assembly on one side carries and installs the buckle component, and the linkage assembly on the other side carries and installs the lower anchor point component for fixing the seat belt.

[0018] Preferably, the rear end of the seat frame is rotatably fitted with a backrest, and the upper side of the backrest is provided with a vertical movement module and a horizontal movement module. The vertical movement module is used to control the vertical movement of the seat belt exit component, and the horizontal movement module is used to control the horizontal movement of the exit component.

[0019] Preferably, the up-and-down moving module includes a transition block, a base, a lead screw rotatably mounted on the base, and a motor for driving the lead screw to rotate. The transition block is threaded onto the lead screw, and the exit component of the safety belt is fixedly mounted on the transition block.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The zero-gravity car seat with seat belt linkage adjustment provided by this invention, during the process of the car seat changing from a sitting position to a zero-gravity state, the drive component drives the front end of the seat frame to rise upward, driving the linkage component to move, that is, simultaneously driving the buckle component on the linkage component to move forward. The forward movement of the buckle component can reduce the pressure of the seat belt lap belt on the occupant's abdomen, improving the comfort of the seat in the zero-gravity state. At the same time, the forward movement of the buckle component can ensure that the seat belt lap belt is always in the optimal restraint state, preventing the occupant from falling down during a car collision, effectively reducing the injury caused to the occupant by a car collision in the zero-gravity state, and improving the safety of the zero-gravity seat.

[0022] 2. The zero-gravity car seat with seat belt linkage adjustment provided by the present invention can transmit the power of seat frame rotation to buckle component through the connection of each linkage piece. Compared with other seat belt buckles that need to be driven by a power source and control module, it has the advantages of simple structure and low cost.

[0023] 3. The zero-gravity car seat with seat belt linkage adjustment provided by the present invention, by symmetrically arranging the lower anchor point component and the buckle component of the seat belt, can move forward synchronously during the process of the seat frame being raised, further reducing the compression of the occupant's abdomen by the seat belt in a zero-gravity state, and improving the comfort and safety of the zero-gravity seat.

[0024] 4. By rotating the buckle component onto the third linkage plate, when the buckle component moves forward with the linkage assembly, the buckle component can adaptively rotate to a suitable position according to the occupant's body shape and posture, further enhancing the comfort of the seat in zero gravity.

[0025] 5. By setting up a vertical and horizontal movement module on the upper side of the backrest, when the seat is in a zero-gravity state, the seat belt outlet component can be controlled to move up, down, left, and right, so that the seat belt is in the best restraint state, while also ensuring the comfort of the occupants. Attached Figure Description

[0026] Figure 1 This is a structural diagram of a zero-gravity car seat in a seated position.

[0027] Figure 2A schematic diagram of a car seat in zero gravity.

[0028] Figure 3 A 3D diagram of a car seat in zero gravity.

[0029] Figure 4 This is a schematic diagram illustrating the connection relationship between the linkage component 5, the seat frame 2, and the base 1 in a seated position.

[0030] Figure 5 This is a schematic diagram illustrating the connection relationship between the linkage component 5, the seat frame 2, and the base 1 in a zero-gravity state;

[0031] Figure 6 This is a schematic diagram of the structure of the third linkage piece 54;

[0032] Figure 7 This is a front view of a zero-gravity car seat. Detailed Implementation

[0033] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0034] The directions “front,” “rear,” “up,” “down,” “left,” and “right” mentioned in this embodiment refer to the directions of a car seat in its normal use state.

[0035] like Figure 1 and Figure 7 As shown, a zero-gravity car seat with seatbelt-linked adjustment includes a seat body A and a seatbelt. The seat body A has a base 1, a seat frame 2 located on the upper side of the base 1, and a backrest 8 rotatably mounted on the rear end of the seat frame 2. The base 1 is used for mounting and connecting to the car floor, and the rear end of the seat frame 2 is rotatably connected to the base 1. In this embodiment, the seatbelt is a three-point seatbelt, which includes an outlet component 10 installed on the shoulder side of the backrest 8, and buckle components 6 and lower anchor point components 7 installed on the left and right sides of the seat frame 2. A drive assembly 3 is provided between the base 1 and the seat frame 2, which can drive the front end of the seat frame 2 to move up and down. A linkage component 5 is provided on the side of the seat frame 2, which is poweredly connected to the drive assembly 3, and the buckle components 6 are installed on the linkage component 5.

[0036] Based on the above structural design, during the process of the car seat transitioning from a sitting position to a zero-gravity state (refer to...) Figure 1 → Figure 2The drive assembly 3 drives the front end of the seat frame 2 to rise, causing the linkage assembly 5 to move. This, in turn, moves the buckle component 6 on the linkage assembly 5 forward. The forward movement of the buckle component 6 reduces the pressure on the occupant's abdomen from the seatbelt lap belt, improving comfort in zero-gravity conditions. Simultaneously, the forward movement of the buckle component 6 ensures the seatbelt lap belt remains in optimal restraint, preventing the occupant from sinking during a collision and effectively reducing injuries caused by a collision in zero-gravity conditions, thus enhancing the safety of the zero-gravity seat. Similarly, when the seat frame 2 rotates downward, returning the seat to its sitting position, the drive assembly 3 moves the buckle component 6 on the linkage assembly 5 backward to ensure the seatbelt remains in optimal restraint.

[0037] For further details, please refer to Figure 1 and 4 The drive assembly 3 includes an upper linkage component 31 and a lower linkage component 32. One end of the upper linkage component 31 is rotatably connected to the front end of the seat frame 2, and the other end is hinged to the lower linkage component 32. In this embodiment, the upper linkage component 31 and the lower linkage component 32 are hinged to each other via a pin b. The end of the lower linkage component 32 away from the pin b is rotatably mounted at the front end of the base 1 via an electric angle adjuster 4, and the linkage assembly 5 is poweredly connected to the lower linkage component 32. When the electric angle adjuster 4 is activated, it drives the lower linkage component 32 to rotate. The upward movement of the front end of the lower linkage component 32 causes the rear end of the upper linkage component 31 to lift upward, thereby realizing the upward rotation of the front part of the seat frame 2. Simultaneously, by... Figure 2 It can be seen that when the lower linkage component 32 rotates upward, it can drive the buckle component 6 on the linkage assembly 5 to move forward, thereby ensuring that the occupant's abdomen is not squeezed by the seat belt when the seat is in a zero-gravity state.

[0038] Revisit Figure 4 The linkage assembly 5 includes a first linkage piece 52, a second linkage piece 53, a third linkage piece 54, and a fourth linkage piece 55, which are sequentially hinged at their ends. The end of the first linkage piece 52 away from the second linkage piece 53 is rotatably connected to the lower linkage component 32. The middle part of the second linkage piece 53 is rotatably connected to the base 1. The end of the fourth linkage piece 55 away from the third linkage piece 54 is rotatably connected to the rear end of the seat frame 2. The snap fastener 6 is installed on the third linkage piece 54. In this embodiment, the ends of each linkage piece are rotatably connected to each other by rivets. In the initial state of the seat frame 2, the front end of the first linkage piece 52 is rotatably connected to the lower linkage component 32, and the rear end is connected to the front end of the second linkage piece 53. The rear end of the second linkage piece 53 is rotatably connected to the front end of the third linkage piece 54. The rear end of the third linkage piece 54 is rotatably connected to the upper end of the fourth linkage piece 55. The lower end of the fourth linkage piece 55 is rotatably connected to the rear end of the seat frame 2. The middle part of the second linkage piece 53 is rotatably connected to the base 1 by rivets.

[0039] The second linkage plate 53, the third linkage plate 54, the fourth linkage plate 55, and the base 1 constitute a four-bar linkage mechanism. The electric angle adjuster 4 drives the lower linkage component 32 to rotate, and then the first linkage plate 52 pulls the second linkage plate 53 to swing back and forth, thereby realizing the movement of the four-bar linkage mechanism and thus realizing the back and forth movement of the buckle component 6.

[0040] Combination Figure 3 and 5 As shown, in this embodiment, in order to facilitate the stable connection between the second linkage plate 53 and the base 1, a connecting platform 11 is fixedly provided on the base 1, and a connecting hole 531 is provided on the second linkage plate 53 near the front end. The connecting hole 531 and the connecting platform 11 are connected by rivets.

[0041] For further details, please refer to Figure 4 and 5 A connecting component 51 is fixedly mounted on the lower linkage component 32. The connecting component 51 is located in the radial extension direction of the electric angle adjuster 4, and the first linkage plate 52 is rotatably connected to the connecting component 51. During the process of the seat changing from a sitting position to a zero-gravity state, that is, during the upward movement of the seat frame 2, the front end of the lower linkage component 32 rotates upward and the rear end rotates downward, causing the connecting component 51 on the lower linkage component 32 to move downward. The downward movement of the connecting component 51 causes the rear end of the first linkage plate 52 to move downward, thereby pulling the second linkage plate 53 to rotate counterclockwise around the connecting hole 531 as the fulcrum, and then causing the third linkage plate 54 to move forward. Thus, the forward movement of the buckle component 6 on the third linkage plate 54 is realized.

[0042] Combination Figure 5 and 6 As shown, the third linkage plate 54 is provided with a mounting hole 541 and an arc-shaped groove 542. The arc-shaped groove 542 is located above the mounting hole 541. The buckle component 6 is rotatably mounted on the mounting hole 541 via a pivot 61. The buckle component 6 is provided with a positioning pin 62 corresponding to the position of the arc-shaped groove 542. The width of the positioning pin 62 is adapted to the arc-shaped groove 542 and can slide back and forth within the arc-shaped groove 542. With this design, when the buckle component 6 moves forward with the third linkage plate 54, the rotatably mounted buckle component 6, combined with the constraint of the arc-shaped groove 542, can ensure that the buckle component 6 is generally in an upward posture, and can adaptively rotate to a suitable position according to the occupant's body shape and seat posture, further improving the comfort of the seat in a zero-gravity state.

[0043] like Figure 1-3As shown, in this embodiment, a drive assembly 3 and a linkage assembly 5 are provided on each of the left and right sides of the seat. One linkage assembly 5 carries a buckle component 6, and the other linkage assembly 5 carries a lower anchor point component 7 for securing the seat belt. The upper linkage components 31 on both sides are synchronously connected via a first synchronizing rod 14, and the lower linkage components 32 on both sides are synchronously connected via a second synchronizing rod 13. This design ensures that as the seat frame 2 rotates upwards, the lower anchor point component 7 and the buckle component 6 can move forward synchronously, further reducing the pressure of the seat belt on the occupant's abdomen in zero gravity.

[0044] In this embodiment, the two sets of driving components 3 and linkage components 5 have the same structure, so the working principle of the other side component will not be described in detail.

[0045] Please refer to Figure 7 The backrest 8 has a vertical movement module 9 and a horizontal movement module on one shoulder side. The vertical movement module 9 controls the vertical movement of the seat belt exit component 10, and the horizontal movement module controls the horizontal movement of the exit component 10. When the seat frame 2 moves upward and the backrest 8 tilts backward, not only can the lower anchor point component 7 and the buckle component 6 move forward synchronously, but the movement module can also control the vertical, horizontal, left, and right movement of the exit component 10 to ensure that the seat belt is in the best restraint state and to ensure the safety of the occupant.

[0046] Furthermore, the vertical movement module 9 includes a transition block 9b, a base 9a, a lead screw 9c rotatably mounted on the base 9a, and a motor 9d for driving the lead screw 9c to rotate. The transition block 9b is threaded onto the lead screw 9c, and the motor 9d drives the lead screw 9c to rotate, which in turn causes the transition block 9b to slide up and down on the base 9a. The seat belt outlet component 10 is fixedly mounted on the transition block 9b, and the vertical movement of the transition block 9b causes the outlet component 10 to move up and down.

[0047] Revisit Figure 7 Two guide rods 9e, parallel to the lead screw 9c, are fixedly installed on the base 9a, and the transition block 9b is slidably fitted onto the two guide rods 9e. In this design, the two guide rods 9e act as guides when the transition block 9b slides, so that the transition block 9b can slide up and down smoothly.

[0048] Furthermore, the base 9a is connected to the left-right moving module, which drives the base 9a to slide left and right, thereby moving the outlet component 10 left and right. In this embodiment, the left-right moving module uses the same driving mechanism as the up-down moving module 9, or uses other linear driving mechanisms to achieve left-right movement.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A zero-gravity car seat with seatbelt-linked adjustment, characterized in that, include: Base (1), which is used for mounting and connecting to the car floor; A seat frame (2) is located on the upper side of the base (1). The rear end of the seat frame (2) is rotatably connected to the base (1). A drive assembly (3) is provided between the front end of the seat frame (2) and the base (1). The drive assembly (3) is used to drive the front end of the seat frame (2) to move up and down. The linkage component (5) is located on the side of the seat frame (2). The linkage component (5) carries a buckle component (6) for fixing the seat belt. The linkage component (5) is poweredly connected to the drive component (3). When the drive component (3) drives the front end of the seat frame (2) to move up and down, the buckle component (6) can move synchronously back and forth with the linkage component (5). When the car seat changes from a sitting position to a zero-gravity state, the drive component (3) drives the front end of the seat frame (2) to rise, which can simultaneously drive the buckle component (6) on the linkage component (5) to move forward. When the car seat returns to the sitting position, the drive component (3) can drive the buckle component (6) on the linkage component (5) to move backward.

2. The zero-gravity car seat with seatbelt-linked adjustment according to claim 1, characterized in that: The drive assembly (3) includes an upper linkage component (31) and a lower linkage component (32). One end of the upper linkage component (31) is rotatably connected to the front end of the seat frame (2), and the other end is hinged to the lower linkage component (32). The lower linkage component (32) is rotatably mounted at the front end of the base (1) via an electric angle adjuster (4). The linkage assembly (5) is poweredly connected to the lower linkage component (32).

3. The zero-gravity car seat with seatbelt-linked adjustment according to claim 2, characterized in that: The linkage component (5) includes a first linkage piece (52), a second linkage piece (53), a third linkage piece (54), and a fourth linkage piece (55) that are hinged at their ends in sequence. The end of the first linkage piece (52) away from the second linkage piece (53) is rotatably connected to the lower linkage component (32). The middle part of the second linkage piece (53) is rotatably connected to the base (1). The end of the fourth linkage piece (55) away from the third linkage piece (54) is rotatably connected to the rear end of the seat frame (2). The buckle component (6) is installed on the third linkage piece (54).

4. The zero-gravity car seat with seatbelt-linked adjustment according to claim 3, characterized in that: The lower linkage component (32) is fixedly provided with a connecting component (51), which is located in the radial extension direction of the electric angle adjuster (4), and the first linkage plate (52) is rotatably connected to the connecting component (51).

5. The zero-gravity car seat with seatbelt-linked adjustment according to claim 3, characterized in that: A connecting platform (11) is fixedly installed on the base (1), and the second linkage piece (53) is hinged to the side of the connecting platform (11).

6. The zero-gravity car seat with seatbelt-linked adjustment according to claim 3, characterized in that: The third linkage plate (54) is provided with a mounting hole (541), and the buckle component (6) is rotatably assembled on the mounting hole (541) via a rotating shaft (61).

7. The zero-gravity car seat with seatbelt-linked adjustment according to claim 6, characterized in that: The third linkage piece (54) is provided with an arc groove (542) on the upper side of the mounting hole (541). The buckle component (6) is provided with a positioning pin (62) corresponding to the position of the arc groove (542). The positioning pin (62) is embedded in the arc groove (542) and can slide along the length direction of the arc groove (542).

8. The zero-gravity car seat with seatbelt-linked adjustment according to claim 1, characterized in that: Each side of the seat is provided with a drive assembly (3) and a linkage assembly (5). The linkage assembly (5) on one side carries and is equipped with the buckle component (6), and the linkage assembly (5) on the other side carries and is equipped with the lower anchor point component (7) for fixing the seat belt.

9. The zero-gravity car seat with seatbelt-linked adjustment according to claim 1, characterized in that: The seat frame (2) is rotatably fitted with a backrest (8) at its rear end. The backrest (8) is provided with an up-down moving module (9) and a left-right moving module on its upper side. The up-down moving module (9) is used to control the seat belt exit component (10) to move up and down, and the left-right moving module is used to control the exit component (10) to move left and right.

10. The zero-gravity car seat with seatbelt-linked adjustment according to claim 9, characterized in that: The up-and-down moving module (9) includes a transition block (9b), a base (9a), a lead screw (9c) rotatably mounted on the base (9a), and a motor (9d) for driving the lead screw (9c) to rotate. The transition block (9b) is threaded onto the lead screw (9c), and the exit component (10) of the safety belt is fixedly mounted on the transition block (9b).

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