A car passenger seat assembly

Abstract

The utility model relates to the technical field of automobile seat, specifically relates to a car co-driver seat assembly, including backrest, seat body, slide rail and lifting mechanism, lifting mechanism includes sliding frame, rotation axis, front connecting rod rotary piece and rear connecting rod rotary piece, seat body is connected with slide rail through lifting mechanism, backrest can rotate and lay flat on seat body, lifting mechanism is used for laying flat backrest, slightly lifting seat body front end, so that passenger leg is slightly higher than head, namely realizes zero gravity posture, specifically, passenger first utilizes hand to rotate backrest, when backrest lays down angle reaches 60 degrees, angle sensor triggers front connecting rod rotary piece and rear connecting rod rotary piece, slightly lifts seat body, makes seat body front side lifting angle greater than rear side, simultaneously makes seat body move along slide rail to the front, forms the zero gravity posture of conforming to human engineering, its seat body surface and backrest surface form continuous plane, error is controlled within 2 DEG, improves the comfort of passenger use.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to an automotive passenger seat assembly. Background Technology

[0002] With the increasing demand for intelligent and comfortable vehicles, the functionality of the front passenger seat has become an important consideration in vehicle design.

[0003] The concept of zero-gravity posture originates from NASA's research on the weightless environment in space: in a weightless state, the human body is not subjected to the vertical pressure of Earth's gravity, and the spine, joints, and muscles will naturally present a "unloaded and relaxed state" - the torso and thighs, and the thighs and calves form a specific angle, and the body weight is evenly distributed on the support surface, avoiding local pressure concentration.

[0004] Ergonomics is optimized based on this, with the core goal of offsetting some of the pressure of gravity on the body through posture adjustment in a gravity environment, replicating the physiological state of "unloaded relaxation", and reducing problems such as spinal compression, muscle tension and obstructed blood circulation caused by gravity.

[0005] Ergonomically optimized zero-gravity postures are essentially about "counteracting the adverse effects of gravity on the human body"—through scientific angle design and support adjustments, allowing the body to approach a "load-free state" in a gravity environment, ultimately achieving the dual goals of "comfort" and "health".

[0006] Traditional passenger seat adjustment mechanisms typically only allow for seat cushion tilt or backrest angle adjustment, resulting in a lack of zero-gravity posture: existing seats cannot achieve an ergonomically optimized zero-gravity posture (i.e., a relaxed state where the legs are higher than the heart) through differential lifting of the front and rear sides of the seat cushion, leading to poor comfort. Utility Model Content

[0007] The purpose of this invention is to provide a passenger seat assembly for automobiles, which aims to solve the problem that existing seats cannot achieve an ergonomically optimized zero-gravity posture by differentiating the front and rear sides of the seat cushion.

[0008] To achieve the above objectives, this utility model provides a passenger seat assembly for automobiles, including a backrest, a seat body, a slide rail, and a lifting mechanism. The lifting mechanism includes a sliding frame, a rotating shaft, a front linkage rotating member, and a rear linkage rotating member. The sliding frame is slidably disposed on one side of the slide rail, and the seat body is disposed on the side of the sliding frame away from the slide rail. The front linkage rotating member and the rear linkage rotating member are respectively assembled between the seat body and the sliding frame. The rotating shaft is rotatably connected to the seat body and passes through the rear linkage rotating member. The backrest is rotatably connected to the seat body and is located on one side of the seat body.

[0009] The front linkage rotating component includes a main front rotating link, a secondary front rotating link, and a first motor. The main front rotating link is assembled between the seat body and the sliding frame, the secondary front rotating link is assembled between the seat body and the sliding frame, and the first motor is located on one side of the main front rotating link.

[0010] The rear linkage rotating component includes a main rear rotating link, a secondary rear rotating link, and a drive rod. The main rear rotating link is assembled between the seat body and the sliding frame, the secondary rear rotating link is assembled between the seat body and the sliding frame, and the drive rod is disposed between the main rear rotating link and the sliding frame.

[0011] The drive rod includes a second motor, a gearbox, a drive screw, and a drive rod body. The second motor is located on one side of the sliding frame, the gearbox is mounted on the output end of the second motor, the drive screw is located on the side of the gearbox away from the second motor, the drive rod body is threadedly connected to the drive screw, and is rotatably connected to the secondary rear rotating connecting rod, and is located between the secondary rear rotating connecting rod and the drive screw.

[0012] The slide rail includes a slide rail body and a connecting bolt. The slide rail body is disposed at the bottom of the sliding frame, and the connecting bolt is threadedly connected to the slide rail body and passes through the slide rail body.

[0013] This utility model discloses a passenger seat assembly for automobiles. The seat body is connected to the slide rail via a lifting mechanism. The backrest can be rotated and laid flat on the seat body. When the backrest is laid flat, the lifting mechanism slightly raises the front end of the seat body, so that the passenger's legs are slightly higher than their head, thus achieving a zero-gravity posture. Specifically, the passenger first rotates the backrest by hand. When the backrest reclines to a 60-degree angle, an angle sensor (not shown in the figure) triggers the front and rear linkage rotating parts (the rear linkage rotating part rotates outside the rotating shaft), slightly raising the front end of the seat body. The seat body is designed such that the front side of the seat body is raised at an angle (15°-25°) greater than the rear side (5°-10°), and the seat body moves forward 100mm-150mm along the slide rail under the action of the sliding frame, forming an ergonomic zero-gravity posture. The surface of the seat body and the surface of the backrest form a continuous plane with an error controlled within ±2°, improving passenger comfort. Furthermore, the backrest can be folded forward for placing items, solving the problem that existing seats cannot achieve an ergonomically optimized zero-gravity posture through differential lifting of the front and rear sides of the seat cushion. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a passenger seat assembly for automobiles provided by this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of a passenger seat assembly for automobiles from another direction, provided by this utility model.

[0017] Figure 3 yes Figure 2 A magnified view of detail A.

[0018] Figure 4 This is a structural schematic diagram of a passenger seat assembly for automobiles (backrest folds forward) provided by this utility model.

[0019] In the diagram: 1-backrest, 2-seat body, 3-slide rail, 4-lifting mechanism, 31-slide rail body, 32-connecting bolt, 41-sliding frame, 42-rotating shaft, 43-front connecting rod rotating component, 44-rear connecting rod rotating component, 431-main front rotating connecting rod, 432-secondary front rotating connecting rod, 433-first motor, 441-main rear rotating connecting rod, 442-secondary rear rotating connecting rod, 443-drive rod, 4431-secondary motor, 4432-gearbox, 4433-drive screw, 4434-drive rod body. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 4This utility model provides a passenger seat assembly for an automobile, including a backrest 1, a seat body 2, a slide rail 3, and a lifting mechanism 4. The lifting mechanism 4 includes a sliding frame 41, a rotating shaft 42, a front connecting rod rotating component 43, and a rear connecting rod rotating component 44. The sliding frame 41 is slidably disposed on one side of the slide rail 3, and the seat body 2 is disposed on the side of the sliding frame 41 away from the slide rail 3. The front connecting rod rotating component 43 and the rear connecting rod rotating component 44 are respectively assembled between the seat body 2 and the sliding frame 41. The rotating shaft 42 is rotatably connected to the seat body 2 and passes through the rear connecting rod rotating component 44. The backrest 1 is rotatably connected to the seat body 2 and is located on one side of the seat body 2.

[0022] In this embodiment of the utility model, the seat body 2 is connected to the slide rail 3 via the lifting mechanism 4. The backrest 1 can be rotated and laid flat on the seat body 2. When the backrest 1 is laid flat, the lifting mechanism 4 slightly lifts the front end of the seat body 2, so that the passenger's legs are slightly higher than their head, thus achieving a zero-gravity posture. Specifically, the passenger first rotates the backrest 1 with their hands. When the backrest 1 is reclined to an angle of 60 degrees, the angle sensor (not shown in the figure) triggers the front linkage rotating member 43 and the rear linkage rotating member 44 (the rear linkage rotating member 44 rotates outside the rotating shaft 42), slightly lifting the backrest 1. The seat body 2 is designed such that the front side of the seat body 2 is raised at an angle (15°-25°) greater than the rear side (5°-10°). At the same time, the seat body 2 moves forward 100mm-150mm along the slide rail 3 under the action of the sliding frame 41, forming an ergonomic zero-gravity posture. The surface of the seat body 2 and the surface of the backrest 1 form a continuous plane with an error controlled within ±2°, improving passenger comfort. Furthermore, the backrest 1 can be reclined forward for placing items, solving the problem that existing seats cannot achieve an ergonomically optimized zero-gravity posture through differential lifting of the front and rear sides of the seat cushion.

[0023] Furthermore, the front linkage rotating component 43 includes a main front rotating link 431, a secondary front rotating link 432, and a first motor 433. The main front rotating link 431 is assembled between the seat body 2 and the sliding frame 41, the secondary front rotating link 432 is assembled between the seat body 2 and the sliding frame 41, and the first motor 433 is disposed on one side of the main front rotating link 431.

[0024] In this embodiment of the utility model, the first motor 433 drives the main front rotating link 431 to rotate, thereby raising the front side of the seat body 2. The auxiliary front rotating link 432 is configured to cooperate with the rotation of the main front rotating link 431 to assist in raising the seat body 2.

[0025] Furthermore, the rear linkage rotating component 44 includes a main rear rotating link 441, a secondary rear rotating link 442, and a drive rod 443. The main rear rotating link 441 is assembled between the seat body 2 and the sliding frame 41, the secondary rear rotating link 442 is assembled between the seat body 2 and the sliding frame 41, and the drive rod 443 is disposed between the main rear rotating link 441 and the sliding frame 41.

[0026] In this embodiment of the present invention, the drive rod 443 is activated to drive the main rear rotating link 441 to rotate on the rotating shaft 42, thereby lifting the rear of the seat body 2. The auxiliary rear rotating link 442 is used in conjunction with the main rear rotating link 441 to assist in lifting the rear of the seat body 2. The main rear rotating link 441 and the auxiliary rear rotating link 442 have the same structure as the main front rotating link 431 and the auxiliary front rotating link 432, and are slightly shorter than the main rear rotating link 441 and the auxiliary rear rotating link 442.

[0027] Furthermore, the drive rod 443 includes a second motor 4431, a gearbox 4432, a drive screw 4433, and a drive rod body 4434. The second motor 4431 is disposed on one side of the sliding frame 41. The gearbox 4432 is assembled at the output end of the second motor 4431. The drive screw 4433 is disposed on the side of the gearbox 4432 away from the second motor 4431. The drive rod body 4434 is threadedly connected to the drive screw 4433 and rotatably connected to the secondary rear rotating connecting rod 442, and is located between the secondary rear rotating connecting rod 442 and the drive screw 4433.

[0028] In this embodiment of the utility model, the output end of the second motor 4431 drives the gear in the gearbox 4432 to rotate, thereby driving the drive screw 4433 to rotate. The rotation of the drive screw 4433, under the action of the thread, drives the drive rod body 4434 to move, thereby driving the main rear rotating connecting rod 441 to rotate, thereby realizing the lifting of the rear of the seat body 2.

[0029] Furthermore, the slide rail 3 includes a slide rail body 31 and a connecting bolt 32. The slide rail body 31 is disposed at the bottom of the sliding frame 41, and the connecting bolt 32 is threadedly connected to the slide rail body 31 and passes through the slide rail body 31.

[0030] In this embodiment of the utility model, the connecting bolt 32 is used to fix the slide rail body 31 in the carriage. The slide rail body 31 provides an installation location for the sliding frame 41, so that the sliding frame 41 can slide in the slide rail 3, thereby moving the seat body 2.

[0031] The above-disclosed embodiments are merely preferred embodiments of the automobile passenger seat assembly of this utility model, and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this utility model still fall within the scope of this utility model.

Claims

1. A passenger seat assembly for automobiles, Its characteristics are: It includes a backrest, a seat body, a slide rail, and a lifting mechanism, wherein the lifting mechanism includes a sliding frame, a rotating shaft, a front connecting rod rotating component, and a rear connecting rod rotating component; The sliding frame is slidably disposed on one side of the slide rail, the seat body is disposed on the side of the sliding frame away from the slide rail, the front connecting rod rotating member and the rear connecting rod rotating member are respectively assembled between the seat body and the sliding frame, the rotating shaft is rotatably connected to the seat body and passes through the rear connecting rod rotating member, and the backrest is rotatably connected to the seat body and is located on one side of the seat body.

2. The passenger seat assembly of an automobile as described in claim 1, characterized in that... ； The front linkage rotating component includes a main front rotating link, a secondary front rotating link, and a first motor. The main front rotating link is assembled between the seat body and the sliding frame, the secondary front rotating link is assembled between the seat body and the sliding frame, and the first motor is located on one side of the main front rotating link.

3. The passenger seat assembly as described in claim 1, Its characteristics are: The rear linkage rotating component includes a main rear rotating link, a secondary rear rotating link, and a drive rod. The main rear rotating link is assembled between the seat body and the sliding frame, the secondary rear rotating link is assembled between the seat body and the sliding frame, and the drive rod is disposed between the main rear rotating link and the sliding frame.

4. The passenger seat assembly of an automobile as described in claim 3, characterized in that... ； The drive rod includes a second motor, a gearbox, a drive screw, and a drive rod body. The second motor is located on one side of the sliding frame, the gearbox is mounted on the output end of the second motor, the drive screw is located on the side of the gearbox away from the second motor, the drive rod body is threadedly connected to the drive screw, and is rotatably connected to the secondary rear rotating link, and is located between the secondary rear rotating link and the drive screw.

5. The passenger seat assembly of an automobile as described in claim 1, characterized in that... ； The slide rail includes a slide rail body and a connecting bolt. The slide rail body is disposed at the bottom of the sliding frame, and the connecting bolt is threadedly connected to the slide rail body and passes through the slide rail body.

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