Dual shoulder restraint car seat

Abstract

The application belongs to the technical field of integrated safety seat of automobile, and discloses a double-shoulder restraint automobile seat. The seat comprises a seat cushion, handrails arranged on both sides of the seat cushion, a bent main body arranged on the handrails, a tail of the bent main body connected with the handrails, an air bag arranged on the lower side of the bent main body, a cavity formed in the air bag, and a gas supply main body in communication with the cavity. When the cavity is inflated by the gas supply main body, the volume of the air bag is increased. The bent main body is provided with a structure capable of being bent but not easy to be stretched. The head of the bent main body penetrates the armpit of an occupant and is bent to the upper side of the shoulder of the occupant. An acceleration sensor is arranged in the automobile or the seat cushion. The acceleration sensor is electrically connected with the gas supply main body. When the backrest angle of the seat is increased or the acceleration is greater than the set value of the acceleration sensor, the gas supply main body is opened. The problem that the human trunk moves forward when braking, the spine is pressed or bent, and personal injury is caused is solved.

Description

Technical Field

[0001] This invention relates to the field of integrated safety seat technology for automobiles, and more particularly to a dual-shoulder restraint automobile seat. Background Technology

[0002] With the development of autonomous vehicles, passive safety devices such as seats, seat belts, and airbags need to be adapted to fit the occupants in order to effectively control the movement of the driver's torso during a collision and avoid serious injury caused by the driver colliding with hard parts of the vehicle's interior.

[0003] In traditional technology, seat shoulder straps are three-point straps. To allow the seat shoulder straps to rotate or recline with the seat back, the upper anchor point of the seat shoulder strap has been changed from being fixed in the B-pillar of the vehicle to being fixed above the seat back. The occupant manually adjusts the length of the seat shoulder strap and then fastens the latch on the seat shoulder strap into the buckle connected to the seat base. At this time, the seat shoulder strap is subjected to the force of the upper anchor point and the buckle, which applies a concentrated restraint force to the driver's shoulder and abdomen, thereby preventing the occupant's torso from leaning forward excessively during a collision. However, when the occupant reclines in a lying position, if a collision occurs or the AEB system is activated, the seat belt cannot provide sufficient restraint, and the occupant's spine will be compressed or bent, causing personal injury. Summary of the Invention

[0004] The purpose of this invention is to provide a double-shoulder restraint car seat to solve the problem of personal injury caused by the human body sliding downwards under the seat, resulting in compression or bending of the spine.

[0005] To achieve this objective, the present invention adopts the following technical solution: The present invention provides a double-shoulder restraint car seat, including a car seat cushion, armrests are provided on both sides of the seat cushion, a bending body is provided on the armrest, the tail of the bending body is connected to the armrest, an airbag is installed on the lower side of the bending body, a cavity is formed inside the airbag, and the cavity is connected to an air supply body;

[0006] When the air supply unit inflates the cavity, the airbag volume increases, the bending unit can bend without stretching, the head of the bending unit passes under the occupant's armpit and bends towards the upper side of the occupant's shoulder, an acceleration sensor is installed in the car or seat, and the acceleration sensor is electrically connected to the air supply unit; when the angle of the car seat back increases or the acceleration is greater than the set value of the acceleration sensor, the air supply unit is activated.

[0007] Preferably, the bending body is provided with a connecting cavity, which is connected to the air supply body through a conduit and is connected to the cavity.

[0008] Preferably, the communicating cavity is provided with an initiator, sodium azide and NaN3. The initiator can mix sodium azide and NaN3 to generate gas. The gas enters the cavity along the communicating cavity. The initiator is electrically connected to the acceleration sensor.

[0009] Preferably, the seat is provided with a switch, which is electrically connected to the air supply unit. The switch can turn the air supply unit on or off. The longer the switch is on, the greater the bending angle of the bending unit.

[0010] Preferably, the shoulder-restrained car seat also includes a backrest, which is flipped backward by a rotary motor, and the rotary motor is turned on synchronously with the air supply unit.

[0011] Preferably, the airbags are installed at equal intervals along the length of the handrail at the bottom of the bent body, and the cavities are interconnected.

[0012] Preferably, the bending body includes a layer plate that can be bent into a C-shape, or the bending body is a soft component driven by a dielectric elastomer material.

[0013] Preferably, the shelf material is carbon fiber board.

[0014] Preferably, silicone is applied to the upper and lower sides of the layer.

[0015] Preferably, the vehicle is equipped with a lidar or millimeter-wave camera, which is electrically connected to the gas supply unit.

[0016] Beneficial effects: When a car encounters danger or is already in danger, the acceleration changes drastically. When the acceleration sensor detects the fluctuation, the air supply unit opens, the airbag inflates, and the bending unit, due to material limitations, remains unchanged in volume. Under the compression of the airbag, the front end of the bending unit moves upward and bends, passing under the occupant's armpit and around to above the occupant's shoulder, providing support for the occupant at the armpit position, reducing excessive compression or bending of the spine and lowering the risk of spinal injury. Attached Figure Description

[0017] Figure 1 This is an unfolded view of the bent main body of the present invention;

[0018] Figure 2 This is a cross-sectional view of the bent main body of the present invention;

[0019] Figure 3 This is a three-dimensional diagram of the bending body of the present invention.

[0020] In the diagram: 1-Bending main body; 11-Head; 12-Tail; 13-Shelf; 2-Airbag; 21-Cavity; 3-Seat; 31-Backrest; 32-Armrest; 33-Seat cushion; 4-Air supply main body. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0022] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0025] When a vehicle is in motion, passengers may lean back for comfort, adopting a reclining posture. However, in this reclining position, passengers may be forced forward by sudden braking or a violent impact. Under the restraint of the seat belt, this can easily lead to excessive compression or bending of the spine, causing serious personal injury.

[0026] Example 1

[0027] To solve the above problems, such as Figures 1 to 3 As shown, the present invention provides a double-shoulder restraint car seat, including a car seat cushion 33, armrests 32 are provided on both sides of the seat cushion 33, a bending body 1 is provided on the armrests 32, the tail 12 of the bending body 1 is connected to the armrests 32, an airbag 2 is installed on the lower side of the bending body 1, a cavity 21 is formed inside the airbag 2, and the cavity 21 is connected to the air supply body 4.

[0028] When the air supply body 4 inflates the cavity 21, the volume of the airbag 2 increases, while the volume of the bending body 1 remains constant. The head 11 of the bending body 1 passes under the occupant's armpit and bends towards the upper side of the occupant's shoulder. An acceleration sensor is installed inside the car or seat 3, and the acceleration sensor is electrically connected to the air supply body 4. When the car's acceleration is greater than the acceleration sensor's set value, the air supply body 4 is activated.

[0029] When the car encounters an emergency, the air supply unit 4 will activate when the car seat 3 or the car's own sensors detect a drastic change in acceleration. Alternatively, the car's lidar or millimeter-wave camera may detect an impending danger and generate an AEB signal, which will activate the air supply unit 4 to inflate the cavity 21 inside the airbag 2, gradually increasing the volume of the airbag 2. Since the volume of the bending body 1 does not change, the increased volume of the airbag 2 will compress the bending body 1, causing both ends of the bending body 1 to bend away from the airbag 2. Because the tail end of the airbag 2 is fixed to the car's armrest 32, the airbag 2 can only bend upwards at the front end. In addition, since the car's armrest 32 is located under the occupant's armpit, the front end of the bending body 1 will pass under the armpit and bend upwards towards the shoulders. The middle section of the bending body 1 will also rest against the occupant's armpit to prevent the occupant from sliding downwards, providing support for the spine and reducing the risk of injury.

[0030] A connecting cavity is provided in the rear 12 region of the bending body 1. The connecting cavity is connected to the air supply body 4 through a conduit. The connecting cavity is connected to the cavity 21. When the car is hit or is about to be in danger, the acceleration sensor detects the danger and sends an opening signal to the air supply body 4. The gas generated by the air supply body 4 flows into the cavity 21 of each airbag 2 along the connecting cavity, causing the airbag 2 to inflate, which in turn causes the bending body 1 to bend and contact the occupant's armpit.

[0031] Airbags 2 are installed at equal intervals along the length of the armrest 32 at the bottom of the bending body 1, and the cavities 21 are interconnected. The more airbags 2 there are, the greater the angle of the bending body 1 after bending. This allows the head 11 of the bending body 1 to abut against the backrest 31 of the seat 3. The bending body 1 is C-shaped and forms a limiting ring with the backrest 31 of the seat 3. The occupant's arm passes through the limiting ring. In the event of sudden braking or impact, the occupant's movement is restricted, preventing the occupant from being ejected from the seat 3 and colliding with it, thus reducing the degree of injury to the occupant.

[0032] The bending body 1 of this invention uses a carbon fiber plate as the material for the layer 13. Since the carbon fiber plate does not expand, it bends when the airbag 2 on the lower side inflates. It should be noted that the material of the layer 13 can also be replaced by a thin metal plate, fiberglass plate, or other flexible but not easily stretched materials with similar physical properties; it is not limited to carbon fiber plate. Furthermore, the bending body 1 can also be made of a dielectric elastomer material.

[0033] Silicone is applied to the upper and lower sides of the shelf 13 to cushion the occupant's armpits and shoulders, preventing the occupant from impacting the bent main body 1 and reducing the probability of secondary injury.

[0034] Real-time Example 2

[0035] The present invention has an initiator, sodium azide and NaN3 disposed in the connecting cavity at the tail 12 of the bending body 1. The initiator can mix sodium azide and NaN3 and generate gas. The gas enters the cavity 21 along the connecting cavity. The initiator is electrically connected to the acceleration sensor.

[0036] When a car is involved in a collision or an imminent emergency braking maneuver, an AEB (Autonomous Emergency Braking) signal is generated by an acceleration sensor, a lidar system within the vehicle, or a millimeter-wave camera. This triggers an initiator, which promptly initiates a chemical reaction to generate gas. This gas then flows directly into cavity 21 through the connecting cavity. In an emergency, it can inflate the bending body 1 before the gas supply body 4, causing it to bend and protecting the occupants from secondary injuries. It should be noted that sodium azide and NaN3 can also be achieved using other chemical materials with similar properties. Alternatively, a soft component driven by a dielectric elastomer can be used as the material for the bending body 1.

[0037] Example 3

[0038] The seat 3 of the present invention is provided with a switch, which is electrically connected to the air supply body 4. The switch can turn the air supply body 4 on or off. The longer the switch is on, the greater the bending angle of the bending body 1.

[0039] By controlling the timing of the switch's activation, the bending angle of the main body 1 can be manually controlled, giving occupants more options and greater flexibility.

[0040] Example 4

[0041] like Figure 1 As shown, the double-shoulder restraint car seat 3 of the present invention also includes a backrest 31. The backrest 31 is flipped backward by a rotary motor. The rotary motor is turned on synchronously with the air supply body 4. By rotating the backrest 31, the bending body 1 bends accordingly. The flatter the backrest 31 is placed, the greater the angle of rotation of the bending body 1 will be, which can provide support for the occupant's armpits and reduce the injury suffered by the occupant.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A double shoulder restraint car seat comprising a car seat cushion, said seat cushion being provided with armrests (32) on both sides, characterized in that, The handrail (32) is provided with a bending body (1), the tail (12) of the bending body (1) is connected to the handrail (32), an airbag (2) is installed on the lower side of the bending body (1), a cavity (21) is formed inside the airbag (2), and the cavity (21) is connected to the air supply body (4); When the air supply body (4) inflates the cavity (21), the volume of the airbag (2) increases, the bending body (1) can bend without extending, the head (11) of the bending body (1) passes under the occupant's armpit and bends towards the upper side of the occupant's shoulder, an acceleration sensor is installed in the car or seat (3), and the acceleration sensor is electrically connected to the air supply body (4); when the angle of the car backrest (31) increases or the acceleration is greater than the set value of the acceleration sensor, the air supply body (4) opens; the airbags (2) are installed at equal intervals along the length of the armrest (32) at the bottom of the bending body (1), and the cavities (21) are interconnected.

2. The dual shoulder restraining car seat according to claim 1, wherein The bending body (1) is provided with a connecting cavity, which is connected to the air supply body (4) through a conduit and is connected to the cavity (21).

3. The dual-shoulder restraint car seat according to claim 1, characterized in that, A switch is provided on the seat (3), and the switch is electrically connected to the air supply body (4). The switch can open or close the air supply body (4). The longer the switch is open, the greater the bending angle of the bending body (1).

4. The dual shoulder restraining car seat according to claim 3, wherein The double-shoulder restraint car seat (3) also includes a backrest (31), which is flipped backward by a rotary motor, and the rotary motor is turned on synchronously with the air supply unit (4).

5. The dual shoulder restraining car seat of claim 1, wherein, The bending body (1) includes a layer plate (13) that can be bent into a C-shape, or the bending body is a soft component driven by a dielectric elastomer material.

6. The dual shoulder restraining car seat according to claim 5, wherein The material of the layer (13) is carbon fiber board.

7. The dual-shoulder restraint car seat according to claim 5, characterized in that, The upper and lower sides of the layer (13) are covered with silicone.

8. The dual shoulder restraining car seat of claim 5, wherein, The vehicle is equipped with a laser radar or a millimeter-wave camera, which is electrically connected to the gas supply unit (4).

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